Hinged Or Flexed Detent On Insulation Engaging To Secure Contact Within Coupling Part Housing Patents (Class 439/595)
  • Patent number: 6676448
    Abstract: A connector of this invention has a plurality of openings at its rear wall for the insertion of terminals, terminal housing chambers communicating with these openings. Each terminal housing chamber has a pair of flexible arms supported by both the circumferential wall and the front wall of the connector housing, and an engagement member supported at both sides by the flexible arms. The terminal, upon insertion through the openings, engages with the engagement member, being prevented from being pulled out. The terminal housing chambers communicate with connection holes provided at the front wall of the connector. Mating terminals are inserted through the connection holes to be connected to the terminals.
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: January 13, 2004
    Assignee: Yazaki Corporation
    Inventors: Tetsuo Kato, Takao Murakami
  • Publication number: 20040002259
    Abstract: A connector housing (30) has a cavity (31) and a resiliently deformable lock (40) cantilevers forwardly from a wall (35) of the cavity (31) for engaging a locking surface (24) of a terminal fitting (10) inserted into the cavity (31). A base end of the lock (40) has a thinned portion (52). A backward pulling force on the female terminal fitting (10) creates a compressive force on the lock (40) in the longitudinal direction. Thus, the lock (40) undergoes such a resilient deformation at the thinned portion (52) that the length (L1) of the lock (40) becomes shorter than its natural length (L0). Buckling strength is enhanced by as much as the lock (40) is shortened and, as a result, a force for locking the female terminal fitting (10) is enhanced.
    Type: Application
    Filed: June 26, 2003
    Publication date: January 1, 2004
    Applicant: Sumitomo Wiring Systems, Ltd.
    Inventors: Yukinori Fukatsu, Kiyofumi Ichida, Shinya Fujita
  • Patent number: 6669508
    Abstract: A connector has a housing (20; 50) with cavities (23) for receiving terminal fittings (10; 60). At least a portion of each cavity (23) is rectangular and is dimensioned to receive a rectangular tube portion (11) of the terminal fitting (10; 60). At least one corner of the rectangular tube (11) defines an engaging recess (17; 61). At least one L-shaped lock (29; 51) is cantilevered forward adjacent each cavity (23) and is resiliently deflectable diagonally away from the rectangular portion of the respective cavity (23) in response to insertion of the terminal fitting (10; 60) into the respective cavity (23). The lock (29; 51) returns resiliently after proper insertion of the terminal fitting (10; 60) to engage the recess (17; 61).
    Type: Grant
    Filed: June 10, 2002
    Date of Patent: December 30, 2003
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Hideto Nakamura, Takeshi Tsuji, Ryotaro Ishikawa, Hajime Kawase
  • Patent number: 6669507
    Abstract: A terminal anchoring lance 20 includes a first anchoring portion 21 and a second anchoring potion 22 which are arranged apart from each other in a direction of inserting a female terminal 30. The female terminal 30 includes a first engagement portion 33 corresponding to the first anchoring portion and a second engagement portion 36 corresponding to the second anchoring portion. The second anchoring portion is arranged at the base 20b of the terminal anchoring lance or on the wall of a connector housing 11 on the extending line of the terminal anchoring lance. The first anchoring portion is formed as a tip of the terminal anchoring lance, and the second anchoring portion is formed as a projection. The second engagement portion is formed as a projection at the rear end of a female electrical contact portion 31 of the terminal, and the first engagement portion is formed as a projection at the front end of the electrical contact.
    Type: Grant
    Filed: April 12, 2002
    Date of Patent: December 30, 2003
    Assignee: Yazaki Corporation
    Inventors: Makoto Yamanashi, Takao Murakami, Chieko Torii
  • Patent number: 6669509
    Abstract: Channels (20) are formed in a partition wall (19) between a sealing surface (14) on the outer peripheral surface of a housing (10) and ceiling surfaces (16a) of cavities (12a) having a back-to-back relationship with the sealing surface (14) by cutting the ceiling surfaces (16a) of the cavities (12a). Thus, even if the partition wall (19) is thick, a “sink mark” is difficult to form when the housing (10) is molded by a mold and, therefore, a deformation of the sealing surface (14) resulting the “sink mark” can be prevented.
    Type: Grant
    Filed: July 22, 2002
    Date of Patent: December 30, 2003
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Kiyofumi Ichida, Yasushi Okayasu
  • Patent number: 6669510
    Abstract: A structure for locking two workpieces includes: a first workpiece 1 provided with a provisional locking arm 3 and a complete locking arm 4 which are in parallel; a second workpiece 2 provided with an arm receiving portion 5 having a provisional engaging area 15 and a complete engaging area 12 which are to be engaged with the provisional locking portion and the complete locking portion, respectively and a pair of arm guiding portions 6 and 7 on both sides of the arm receiving portion, the arm receiving portion being to advance in between the provisional locking arm and the complete locking arm. One of the arm guiding portions is provided with a slope 21 for slidably supporting a tip of the complete locking arm when the complete locking arm climbs over the complete engaging portion. In such a configuration, inadvertent complete-locking or release thereof of two workpieces can be prevented.
    Type: Grant
    Filed: July 31, 2002
    Date of Patent: December 30, 2003
    Assignee: Yazaki Corporation
    Inventors: Takanori Yamawaki, Takeo Kohata
  • Patent number: 6666718
    Abstract: A side spacer structure in a connector has a side spacer mounted in a housing body having terminal receiving chambers and including a tentative retention lance for temporarily retaining a terminal inserted into the terminal receiving chambers, a securing portion for securing the terminal in a state for operation, and a terminal releasing lance is provided in a side of the tentative retention lance; wherein a front end of the terminal releasing lance is positioned backward than a front end of the tentative retention lance in an insertion direction of the connector housing.
    Type: Grant
    Filed: October 3, 2002
    Date of Patent: December 23, 2003
    Assignee: Yazaki Corporation
    Inventor: Tomomi Endo
  • Publication number: 20030228797
    Abstract: Female terminal fittings (30) are insertable from behind into cavities (11) in a female housing (10). A slanted guide surface (22) is formed at the peripheral rear edge of each cavity (11) for guiding the female terminal fitting (30) into the cavity (11) and is slanted at an obtuse angle to an inserting direction of the female terminal fitting (30). A stabilizer-inserting groove (20) is formed in a surface of the cavity (11) and has an open rear end into which a stabilizer (47) of the female terminal fitting (30) is insertable. A preventing surface (27) is provided at the peripheral rear edge of the cavity (11) and abuts the stabilizer (47) when the female terminal fitting (30) is inserted in an improper posture. An angle of the preventing surface (27) to the inserting direction is less than an angle of the slanted guide surface (22).
    Type: Application
    Filed: May 20, 2003
    Publication date: December 11, 2003
    Applicant: Sumitomo Wiring Systems, Ltd.
    Inventors: Ryotaro Ishikawa, Hajime Kawase, Yuuichi Nankou, Yukihiro Fukatsu, Naoya Kurimoto
  • Publication number: 20030228795
    Abstract: A female housing (10) has cavities (11) into which female terminal fittings (30) are insertable from behind. A lock (13) projects forward from its base end and is restorable after being temporarily resiliently deformed by the female terminal fitting (30) being inserted, thereby engaging and locking the female terminal fitting (30) in the cavity (11). Maneuverable recesses (24) maneuverable by a disengagement jig (60) from front are provided at positions on the front surface of each lock (13) retracted from the locked terminal fitting (30) and within a width range of a locking surface of the lock (13) engageable with the terminal fitting (30) and located more toward the base end of the locking portion than the locking surface.
    Type: Application
    Filed: February 11, 2003
    Publication date: December 11, 2003
    Applicant: Sumitomo Wiring Systems, Ltd.
    Inventors: Kiyofumi Ichida, Yukihiro Fukatsu, Toshikazu Sakurai, Shinya Fujita, Yuuichi Nankou, Hajime Kawase, Ryotaro Ishikawa, Naoya Kurimoto
  • Publication number: 20030228798
    Abstract: A female terminal fitting (30) is provided for insertion into a female housing (10) from behind. A rear end of an outer wall (37) of the female terminal fitting (30) extending along widthwise direction is embossed to project out, thereby forming a locking projection (52) with a vertex (A) at its front end. The female terminal fitting (30) is inserted into the female housing (10) and a lock (13) in the female housing (10) engages the locking projection (52). The locking projection (52) is more outward than an imaginary triangular pyramid (X) formed by connecting the vertex (A) at the front end, a pair of base end points (B) at the rear edge, and an outward-projecting end point (C).
    Type: Application
    Filed: May 21, 2003
    Publication date: December 11, 2003
    Applicant: Sumitomo Wiring Systems, Ltd.
    Inventors: Yuuichi Nankou, Hajime Kawase, Ryotaro Ishikawa, Naoya Kurimoto
  • Publication number: 20030228794
    Abstract: A housing (31) has cavities (32A), and a lance for locking terminal fittings (20) in the cavities (32A). A region of a lower wall (33) of the housing (31) forward from the lance (37) is formed as an open part (38). Thus, it is possible to make the entire lower wall (33) thin, and the housing (31) can be inserted into a smaller through-hole (19). A rib (39) projects between the open parts (38) of adjacent cavities (32A) and (32A) to increase a distance water would have to creep between the cavities (32A) and (32A). Therefore if a connector (30) is exposed to water, it is possible to prevent a short circuit between the cavities (32A) and (32A).
    Type: Application
    Filed: September 5, 2002
    Publication date: December 11, 2003
    Applicant: Sumitomo Wiring Systems, Ltd.
    Inventors: Nobuyoshi Tanaka, Kiyofumi Ichida
  • Publication number: 20030228796
    Abstract: A terminal fitting (30) is provided for insertion into a female housing (10) from behind. The terminal fitting (30) has an outer wall (37) with a cut-away portion (44) that permits entrance of a lock (13). Thus, the outer wall (37) is divided into a front portion and a rear portion. A locking projection (52) with which the lock (13) is engageable for locking is provided by causing a front cut end of the cut-away portion (44) to project outward. The lock (13) is engageable with a front cut end surface (44a) of the cut-away portion (44) including the locking projection (52).
    Type: Application
    Filed: May 20, 2003
    Publication date: December 11, 2003
    Applicant: Sumitomo Wiring Systems, Ltd.
    Inventors: Yuuichi Nankou, Hajime Kawase, Ryotaro Ishikawa, Naoya Kurimoto
  • Patent number: 6659798
    Abstract: A retainer (40) has first securing portions (48) for securing terminal fittings (30) by entering deformation-permitting spaces (17) to prevent the resilient deformation of locks (13) and second securing portions (50) for securing the terminal fittings (30) by directly engaging the terminal fittings (30). Thus, even if one of the first securing portions (48) and the second securing portions (50) are narrowed to make a connector smaller, the terminal fittings (30) can be locked securely by the other securing portions and an insufficient insertion can be detected.
    Type: Grant
    Filed: June 21, 2002
    Date of Patent: December 9, 2003
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Tsuyoshi Mase, Tsutomu Tanaka
  • Patent number: 6659797
    Abstract: A connector has a housing (10) with a terminal accommodating portion (11) formed with cavities (19) in which terminal fittings (13) can be accommodated. A receptacle (12) surrounds the terminal accommodating portion (11) and a lock arm (31) is coupled to the receptacle (11) by supports (35). This lock arm (31) is resiliently deformable like a seesaw with the supports (35) as a point of support, and can hold a housing (80) of a male connector fitted between the terminal accommodating portion (11) and the receptacle (12) in its connected state.
    Type: Grant
    Filed: February 26, 2002
    Date of Patent: December 9, 2003
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventor: Toshifumi Ichio
  • Patent number: 6655998
    Abstract: A connector is capable of being miniaturised, whilst inadvertent pushing in of a retainer is prevented. A housing main body 2 into which female terminal fittings are inserted has a retainer insertion groove 23 formed on a side face thereof, a retainer 14 being inserted into this retainer insertion groove 23. The retainer 14 is maintained in a temporary stopping position which allows the insertion of the female terminal fittings into cavities thereof. After that, the retainer 14 is pushed further in and maintained in a main stopping position where is engages stepped members of the female terminal fittings. When the retainer 14 is in the temporary stopping position, the posterior end (relative to the direction of insertion) of this retainer 14 is inside the housing main body 2. As a result, the retainer 14 is not pushed inadvertently into the main stopping position while, for example, the connector is being transported to a site where the female terminal fittings are to be inserted.
    Type: Grant
    Filed: December 7, 1999
    Date of Patent: December 2, 2003
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventor: Naoya Kurimoto
  • Patent number: 6655993
    Abstract: A guide plate (9) for guiding the jig rod (7) extends from a hole (4), formed in a connector (24), toward a distal end of the retaining lance (3). A slanting guide surface (10) for sliding contact with the jig rod (7) is formed on the retaining lance (3). The jig rod (7) is inserted into the hole (4) without shaking. A guide groove (43) for guiding the jig rod (7) is formed in the guide plate (9), and an inner surface (4a) of the hole (4) is disposed flush with a guide surface (13) of the guide groove (43). The guide plate (9) extends to a position near to the retaining lance (3). A retaining projection (16) is formed on the retaining lance (3) in juxtaposed relation to the slanting guide surface (10). A press-contact portion (25) for contact with the slanting guide surface (10) and an abutment step portion (22) for contact with the retaining projection are formed at the jig rod (7). A slanting surface (21) for contact with the slanting guide surface (10) is formed at the press-contact portion (25).
    Type: Grant
    Filed: April 4, 2000
    Date of Patent: December 2, 2003
    Assignee: Yazaki Corporation
    Inventor: Masaya Yamamoto
  • Patent number: 6655999
    Abstract: Terminal fittings (30) are locked in a housing (10) by locks (13), but are permitted to shake along the terminal insertion direction (ID). A retainer (40) can be moved to a full locking position in the housing (10) and contacts the terminal fittings (30) to hold them at their proper insertion positions, thereby preventing them from shaking. Slanted contacts (36A, 41A) are provided so that the retainer (40) can push the terminal fittings (30) to their proper inserting positions even if the terminal fittings (30) initially are behind their proper insertion positions when the retainer (40) is moved to the full locking position.
    Type: Grant
    Filed: June 18, 2002
    Date of Patent: December 2, 2003
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Tsuyoshi Mase, Tsutomu Tanaka
  • Patent number: 6655994
    Abstract: A guide plate (9) for guiding the jig rod (7) extends from a hole (4), formed in a connector (24), toward a distal end of the retaining lance (3). A slanting guide surface (10) for sliding contact with the jig rod (7) is formed on the retaining lance (3). The jig rod (7) is inserted into the hole (4) without shaking. A guide groove (43) for guiding the jig rod (7) is formed in the guide plate (9), and an inner surface (4a) of the hole (4) is disposed flush with a guide surface (13) of the guide groove (43). The guide plate (9) extends to a position near to the retaining lance (3). A retaining projection (16) is formed on the retaining lance (3) in juxtaposed relation to the slanting guide surface (10). A press-contact portion (25) for contact with the slanting guide surface (10) and an abutment step portion (22) for contact with the retaining projection are formed at the jig rod (7). A slanting surface (21) for contact with the slanting guide surface (10) is formed at the press-contact portion (25).
    Type: Grant
    Filed: May 8, 2002
    Date of Patent: December 2, 2003
    Assignee: Yazaki Corporation
    Inventor: Masaya Yamamoto
  • Publication number: 20030220016
    Abstract: Cavity towers (14) forming front parts of cavities (11) project forward independently of each other from a back end surface (13A) of a mount space (13) formed in a housing (10) to mount a retainer (30). The cavity towers (14) are prevented from deformations by being coupled to the adjacent cavity towers (14) by couplings (26). Thus, when a pulling force acts backward on a terminal fitting (50), withdrawal of the terminal fitting (50) resulting from the deformation of the cavity tower (14) can be prevented. Therefore, the reliability of a function of locking the terminal fittings (50) can be improved.
    Type: Application
    Filed: May 21, 2003
    Publication date: November 27, 2003
    Applicant: Sumitomo Wiring Systems, Ltd.
    Inventor: Takeshi Tsuji
  • Publication number: 20030220015
    Abstract: A female terminal fitting (F) has a resilient contact piece (23) with first and second leaf springs (24, 29) connected by a folded portion (26). A base end (24A) of a first leaf spring (24) and an extending end (30) of a second leaf spring (29) are supported on a base plate (14). Thus, a high contact pressure can be ensured. The folded portion (26) enables the resilient contact piece (23) to be short along forward and backward directions. Additionally, the extending end of the first leaf spring (24) and the base end of the second leaf spring (29) are coupled via the closely folded portion (26). Thus, an elevation difference between the first and second leaf springs (24, 29) is small.
    Type: Application
    Filed: May 21, 2003
    Publication date: November 27, 2003
    Applicant: Sumitomo Wiring Systems, Ltd.
    Inventor: Takayuki Ishiyama
  • Patent number: 6652328
    Abstract: There is provided with one connector (C1) which is configured by containing within a connector housing (10) a terminal (40), a holder (20) for protecting or holding the terminal (40) and a spacer (30) for doubly engaging the terminal (40) and the other connector (C2) which is configured by containing within the other housing (70) the other terminal (90). When the front surface (72c′) of the other connector (C2) pushes with pressure the front surface (22c′) of the holder (20) housed within the connector housing (10), the holder (20) is regularly engaged with the connector housing (10) of the one connector (C1) and, simultaneously, the terminal (40) of the one connector (C1) is coupled to the other terminal (90) of the other connector (C2), whereby the fitting operation between the one connector (C1) and the other connector (C2) is performed.
    Type: Grant
    Filed: May 14, 2002
    Date of Patent: November 25, 2003
    Assignee: Yazaki Corporation
    Inventor: Kenji Suzuki
  • Patent number: 6648699
    Abstract: A connector has a retainer 13 which is insertable through one side surface of a housing 11. The retainer is provided with forked locking arms. The width and/or thickness of partial locking arms 13a is set smaller than the full locking arms 13b to thereby set the elastic forces of the partial locking arms 13a smaller than those of the full locking arms 13b.
    Type: Grant
    Filed: July 20, 1999
    Date of Patent: November 18, 2003
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Hirotaka Makino, Hajime Okada
  • Patent number: 6648685
    Abstract: The invention provides a front retainer used in common for both male and female electrical connectors. A female housing 30 and a male housing 40 are each provided with two large cavities 33L and 43L, these being opposite one another. In the female housing 30, the large cavity 33L on the right side is located below a central line XF, and the large cavity 33L on the left side is located above the central line XF. Bending spaces 36 of large lances 34L have recessed spaces 37 contiguous therewith either above or below. In the male housing 40, the large cavity 43L on the left side is located below a central line XM, and the large cavity 43L on the right side is located above the central line XM. Bending spaces 46 of large lances 44L have recessed spaces 47 contiguous therewith either above or below. A retainer 50 has female protruding members 55 and male protruding members 56 aligned above and below, these fitting respectively with the female bending spaces 36 and the male bending spaces 46.
    Type: Grant
    Filed: January 29, 2002
    Date of Patent: November 18, 2003
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventor: Yuuichi Nankou
  • Patent number: 6645015
    Abstract: A connector has a housing (10) with cavities (12) and terminal fittings (30) mounted in the cavities (12). The cavities (12) extend to a front mating surface of the housing (10). A retainer (40) is mounted in the housing (10) and has a front wall (42) adjacent the front mating surface of the housing (10). The front wall (42) has tab holes (50) that align with the cavities (12). Loose-movement preventing portions (18, 19) are provided on the housing (10) and/or the front wall (42) of the retainer (40) to ensure alignment of the tab holes (50) and the terminal fittings (30).
    Type: Grant
    Filed: June 14, 2002
    Date of Patent: November 11, 2003
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Tsuyoshi Mase, Tsutomu Tanaka
  • Publication number: 20030207616
    Abstract: A connector housing (10) has a terminal accommodating portion (11) with cavities (13) at upper and lower stages, and locks (21) project respectively into each cavity (13). Each lock (21) has a resiliently deformable arm (22) and a locking section (23) engageable with a female terminal fitting (30). A retainer (40) is mounted on the terminal accommodating portion (11) and has deformation restricting portions (44) that enter deformation spaces (24) for the locks (21) to prevent deformation of the locks (21). Each arm (22) has an engaging portion (29). Engaging portions (29B) at the lower stage engage a side wall (25A) of the cavity (13A) at the upper stage during the deformation of the lock (21B). Engaging portions (29A) at the upper stage engage a surrounding wall (41) of the retainer (40) during deformation of the lock (21A). Thus, the locks (21) cannot deform beyond their resiliency limit.
    Type: Application
    Filed: April 2, 2003
    Publication date: November 6, 2003
    Applicant: Sumitomo Wiring Systems, Ltd.
    Inventor: Satoru Nishide
  • Patent number: 6641437
    Abstract: A connector has a housing (20) with a main body (21) and a front-wall member (40). The main body (21) has cavities (25) and resiliently deflectable locks (30) are cantilevered forwardly in the cavity (25) for engagement with corresponding male terminal fittings (10). Sidewalls of the cavities (25) adjacent the locks 30 are formed by sidewall portions (45) and a partition wall (46) of the front wall member (40). As a result, each lock (30) has a width substantially equal to the entire width of the cavity (25) and large locking forces can be obtained.
    Type: Grant
    Filed: November 22, 2002
    Date of Patent: November 4, 2003
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Takeshi Tsuji, Masaaki Tabata
  • Patent number: 6638109
    Abstract: A connector has a housing (20) with cavities (21) and terminal fittings (10) insertable in the cavities (21). Each terminal fitting (10) has a lock engaging projection (17) for engaging a lock (22) of the housing (20). Each terminal fitting (10) also has a step (14) and a retainer engaging projection (15) formed continuously with the step (14). The lock engaging projection (17) interferes with a lock (46) of a retainer (40) that is being displaced to a full locking position even if the female terminal fitting (10) is left lightly inserted without reaching the position where the retainer engaging projection (15) interferes with the locking projection (46). Thus, an insufficient insertion can be detected even when the female terminal fitting (10) is left even more lightly inserted.
    Type: Grant
    Filed: May 14, 2002
    Date of Patent: October 28, 2003
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Naoya Kurimoto, Kazuhiko Nimura
  • Patent number: 6638108
    Abstract: A connector has an auxiliary housing (10) with cavities (11) and locks (14) cantilevered into the cavities (11). The locks (14) deform into deformation permitting spaces (S) during insertion of terminal fittings (12) into the cavities (11). The locks (14) resiliently return to an undeflected condition to engage locking holes (12a) in terminal fittings (12) after insertion to proper depth. Deformation restricting portions (58) are integrally provided in an accommodation recess (53) of a housing main body (50) for accommodating the auxiliary housing (10). The deformation restricting portions (58) enter the deformation permitting spaces (S) for the locks (14) as the auxiliary housing (10) is accommodated into the accommodation recess (53), thereby preventing the locks (14) from inadvertently undergoing an elastic deformation.
    Type: Grant
    Filed: November 27, 2001
    Date of Patent: October 28, 2003
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventor: Hideshi Tachi
  • Patent number: 6634907
    Abstract: The invention allows, in a connector having a moving plate provided at the anterior of a connector housing, a retainer to be attached to this connector housing from the anterior. A retainer attachment hole 17, for allowing a retainer 40 to be attached, is formed at an anterior end face of a connector housing 10. A window hole 36 is formed in a moving plate 30, at least a portion of the retainer 40 protruding towards the anterior from this window hole 36. Consequently, the retainer 40 can be pushed in, and other operations can be performed thereto, from the anterior of the moving plate 30. That is, the retainer 40 can be attached from the anterior to the connector housing 10.
    Type: Grant
    Filed: November 1, 2001
    Date of Patent: October 21, 2003
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Kozue Takatsuki, Hajime Kawase, Ryotaro Ishikawa, Yuuichi Nankou
  • Publication number: 20030190841
    Abstract: A connector has a housing (40) with cavities (41) and resiliently deformable locks (43) that project into the cavities (41). Terminal fittings (10) are insertable into the cavities (41) and deform the locks (43) in a deforming direction (DD) that intersects the inserting and withdrawing directions (IWD) of the terminal fitting (10). The locks (43) then restore and locking surfaces (64) of the locks (43) lock the terminal fittings (10) in the cavities (41). Each locking surface (64) has an upper locking surface (58) furthest into the cavity (41) and a lower locking surface (61). The lower locking surface (61) is at an obtuse angle to the withdrawing direction of the terminal fitting (10), whereas an angle of the upper locking surface (58) to the withdrawing direction is smaller than the angle of the lower locking surface (61).
    Type: Application
    Filed: October 15, 2002
    Publication date: October 9, 2003
    Applicant: Sumitomo Wiring Systems, Ltd.
    Inventors: Hideto Nakamura, Ryotaro Ishikawa, Hajime Kawase, Yuuichi Nankou, Naoya Kurimoto
  • Publication number: 20030190842
    Abstract: A terminal fitting (10) has a main body (11) and stabilizer (17) for preventing upside-down insertion stands up from a surface of the main body (11). Elongated projections (50) extend from a surface of the main body (11) opposite the stabilizer (17). If the male terminal fitting (10) is inserted upside down, the elongated projections (50) contact a bottom wall (24B) at the entrance of a cavity (24) during the insertion to shift the male terminal fitting (10) transversely. Thus, the stabilizer (17) is caught deeply by a ceiling wall (24C) at the entrance. As a result, the male terminal fitting (10) is prevented from any further insertion.
    Type: Application
    Filed: April 7, 2003
    Publication date: October 9, 2003
    Applicant: Sumitomo Wiring Systems, Ltd.
    Inventors: Yukihiro Fukatsu, Yuuichi Nankou, Hideto Nakamura, Ryotaro Ishikawa, Hajime Kawase
  • Patent number: 6626702
    Abstract: A horizontally inserted retainer is mounted in a housing, and can be moved between a temporary locked position which allows insertion and removal of female terminal fittings and a final locked position which retains the female terminal fittings in the housing. A front stop plate with insertion openings is provided on the retainer, and the insertion openings are offset from housing chambers containing female terminal fittings when the retainer is in the temporary locked position. A continuity test is carried out by inserting a test probe through the insertion openings when the retainer is in the temporary locked position. Since only a portion of the front rim of the female terminal fitting is accessible through the insertion opening, the test probe contacts the portion of the front rim and does not enter deeply into the female terminal fitting.
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: September 30, 2003
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Naoya Kurimoto, Kazuhiko Nimura
  • Patent number: 6626701
    Abstract: A connector (1) includes terminals (3), and a connector housing (2) having terminal receiving chambers (4). The terminal (3) has resilient curl portions (32, 32) of a generally mountain-like cross-sectional shape which are integrally formed respectively on opposite side edges of a base plate portion (31). A lance (5) is formed within the terminal receiving chamber (4), and two projections (23, 23) are formed integrally on the lance (5), and project in a direction of a width of the terminal receiving chamber (4) which direction is perpendicular to a direction (see P, in FIG. 7) of insertion of the terminal (3), and the two projections can be brought into sliding contact with apexes (41, 41) of the resilient curl portions (32, 32), respectively.
    Type: Grant
    Filed: December 8, 2000
    Date of Patent: September 30, 2003
    Assignee: Yazaki Corporation
    Inventors: Haruki Yoshida, Motohisa Kashiyama
  • Patent number: 6626694
    Abstract: An electrical connector having a body with a plurality of contact cavities therein, and a plurality of insulation penetrating beam contacts received within the cavities. Each contact has a first end portion to engage a wire located at a first cavity end and a second end portion with a protrusion at a second cavity end. The connector also includes a plurality of resilient spring arms positioned adjacent to the contact cavities. Each arm has a hinge portion attached to the body and a resiliently movable free end portion with a receiving aperture receiving therein the contact protrusion when the contact is in the contact cavity at which the spring arm is positioned. The second cavity end is open and the spring arm is resiliently movable to permit insertion and removal of the contact through the open end.
    Type: Grant
    Filed: November 4, 2002
    Date of Patent: September 30, 2003
    Assignee: Leviton Manufacturing Co., Inc.
    Inventors: Darrell W. Zielke, Philip R. Mansur
  • Patent number: 6623313
    Abstract: A connector has a housing (10) with cavities (11) into which terminal fittings (30) are insertable. Locks (13) in the housing (10) deform during insertion of the terminal fittings (30) into the cavities (11), but then resiliently restore to lock the terminal fittings (30) in the cavities (11). Lowered portions (12a) of a bottom wall (12) of the housing (10) face the locks (12) and prevent the locks (13) from being excessively deformed. The bottom surface of each lock (13) has a convex arcuate surface (13c) and each lowered portion (12a) of the bottom wall (12) has a recess (12b) substantially conforming to the convex arcuate surface (13c) to accommodate the convex arcuate surface (13c) when the lock (13) deforms.
    Type: Grant
    Filed: October 23, 2002
    Date of Patent: September 23, 2003
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Kiyofumi Ichida, Yukihiro Fukatsu, Toshikazu Sakurai, Shinya Fujita, Yuuichi Nankou, Hajime Kawase, Ryotaro Ishikawa, Naoya Kurimoto
  • Publication number: 20030176107
    Abstract: Apparatus, methods and articles of manufacture for terminal position assurance are shown, comprised of a housing with pin contact and terminal position assurance means. The terminal position assurance means, as it is installed within the housing, provides a tab that engages a finger within the housing, thereby driving the finger into a recess within the pin contact, and so seating the pin contact within the housing. If more than one pin contact is within the housing, more than one tab and finger are provided. The terminal position assurance means further contains a recess for retrieval so it may be retrieved in the event of maintenance, disassembly, etc. on the connector.
    Type: Application
    Filed: March 18, 2002
    Publication date: September 18, 2003
    Inventors: John W. Hall, Keith R. Foltz, Bradley S. Buchter
  • Patent number: 6616481
    Abstract: A connector has a housing (10) with a terminal accommodating portion (11) for receiving terminal fittings (13) and a receptacle (12) that surrounds the terminal accommodating portion (11). A holder (50) is mounted on the terminal accommodating portion (11) from the front and includes a front wall (51) for supporting the terminal fitting (13) at their front limit positions. A retainer (40) is mounted sideways through a retainer insertion hole (33) in the receptacle (12) and into a retainer mount hole (26) in the terminal accommodating portion (11) for locking the terminal fittings (13). The terminal accommodating portion (11) has a holding groove (29) for holding the holder (50). The holding groove (29) is exposed laterally through the retainer mount hole (26) and the retainer insertion hole (33). The holding grooves (29), the retainer mount hole (26) and the retainer insertion hole (33) are molded by the same mold when the housing (10) is molded.
    Type: Grant
    Filed: March 1, 2002
    Date of Patent: September 9, 2003
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventor: Toshifumi Ichio
  • Publication number: 20030157834
    Abstract: A connector has a housing (10) with cavities (11) for receiving terminal fittings (21). Each cavity (11) has a lock (12) with a fastening portion (13) for locking the terminal fitting (21). A jig contact portion (14) is formed at the side of the fastening portion (13). A withdrawing jig (J) comes into sliding contact with the jig contact portion (14) to deform the lock (12) away from the terminal fitting (21) to cancel the locked state. The front end (14F) of the jig contact portion (14) is more backward than the front end (13F) of the fastening portion (13). Thus, a stroke of the sliding-contact accompanied by frictional resistance between the withdrawing jig (J) and the jig contact portion (14) is shortened, and frictional resistance is reduced during the insertion of the withdrawing jig (J).
    Type: Application
    Filed: February 11, 2003
    Publication date: August 21, 2003
    Applicant: Sumitomo Wiring Systems, Ltd.
    Inventor: Toshifumi Ichio
  • Publication number: 20030157833
    Abstract: A connector has a housing (10) with cavities (11) for receiving terminal fittings (40). Locks (17) lock the terminal fittings (40) in the cavities (11) and serve also as partition walls (20) between cavities (11) for the miniaturization of the connector. Upside-down insertion preventing portions (46) are provided on the terminal fittings (40), but are disposed so as not to interfere with the corresponding lock (17). The upside-down insertion preventing portions (46) also do not interfere with the lock (17) of the adjacent cavity (11) even if both the upside-down insertion preventing portion (46) and the lock (17) are near the front end and are on opposite sides. Since the upside-down insertion preventing portions (46) and the locks (17) are near the front end, inserting resistance is low and an earlier detection of upside-down insertion is realized.
    Type: Application
    Filed: January 28, 2003
    Publication date: August 21, 2003
    Applicant: Sumitomo Wiring Systems, Ltd.
    Inventors: Takeshi Tsuji, Masaaki Tabata
  • Publication number: 20030157835
    Abstract: A connector has a housing (20) with cavities (25) for receiving terminal fittings (10). A resiliently deformable lock (30) extends along a wall (25A) of each cavity (25) and is configured for locking the terminal fitting in the cavity (25). An elongated projection (31) is formed at a widthwise center position of the upper surface of each lock (30) and an escaping groove (34) is formed in the wall (25A) of each cavity (25) for receiving the elongated projection (31) when the lock (30) deforms. The elongated projection (31) reinforces the lock (30) and provides a large engaging area with the terminal fitting (10). Additionally, the escaping groove (34) provides a necessary a deformation permitting space (35) for the thicker lock (30) without increasing the height of the housing (20).
    Type: Application
    Filed: February 19, 2003
    Publication date: August 21, 2003
    Applicant: Sumitomo Wiring Systems, Ltd.
    Inventors: Ryotaro Ishikawa, Hajime Kawase, Hideto Nakamura, Takeshi Tsuji
  • Patent number: 6607407
    Abstract: A connector including a connector housing with a retainer attachment hole that receives and stabilizes a retainer as it is inserted into the connector housing. The retainer attachment hole extends into an anterior face of the connector housing. Male terminal fittings inserted into the connector housing are maintained therein by a removal preventing member of the retainer that is inserted into the retainer attachment hole. Guiding members formed on the retainer enter the retainer attachment hole before the removal preventing member enters therein. Consequently, the retainer is stabilized and maintained in position relative to the connector housing while it is being attached to the retainer attachment hole.
    Type: Grant
    Filed: November 1, 2001
    Date of Patent: August 19, 2003
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Kozue Takatsuki, Hajime Kawase, Ryotaro Ishikawa, Yuuichi Nankou
  • Patent number: 6599150
    Abstract: An electrical connector assembly comprising includes a housing having a plurality of terminal receiving passages. Each terminal passage has an opening configured to permit an electrical terminal to be inserted into the passage and a deflectable latch for securing the terminal within the passage. A terminal position assurance device (TPA) is matable with the housing for movement between a partially engaged position and a fully engaged position. The TPA defines an overstress features that cooperates with the latches when the TPA is at its preset position to prevent the latches from deflecting beyond a predetermined point as the terminals are inserted into and/or removed from the passages. The overstress features may include wedge members that are insertable into the housing at locations adjacent the latches. The terminal passages may be arranged in adjacent pairs. In this configuration, the housing includes a longitudinal gap extending between the terminal latches of given pair of adjacent passages.
    Type: Grant
    Filed: March 22, 2002
    Date of Patent: July 29, 2003
    Assignee: Tyco Electronics Corporation
    Inventors: Galen M. Martin, Hurley C. Moll, Jr.
  • Patent number: 6592411
    Abstract: Locks (13) and securing portions (48) of a retainer (40) have slanted guide surfaces (15, 49) aligned oblique both to resiliently deforming directions of the locks (13) and moving directions of the retainer (40) between partial and full locking positions. Portions of the securing portions (48) enter deformation permitting spaces (17) when the retainer (40) displaced toward the full locking position from the partial locking position. However, since the locks (13) are resiliently deformable to enter the deformation permitting spaces (17) while being held in sliding contact with the first securing portions (48) via the slanted guide surfaces (15, 49), inserting movements of the terminal fittings are not hindered.
    Type: Grant
    Filed: June 21, 2002
    Date of Patent: July 15, 2003
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Tsuyoshi Mase, Tsutomu Tanaka
  • Patent number: 6592404
    Abstract: In a half fit preventive connector according to the invention, flexible arms are disposed on the upper portion of a housing of a male connector. On the leading end portions of the flexible arms, engaging portions are formed respectively. Further, securing members are disposed on the upper portion of a housing of a female connector. On the inner surfaces of the securing members, arm guide surfaces are formed. Securing step portions are formed in the rear end portions of the securing members. An inclined projection having a flat plate portion and a tapered surface is disposed on a housing main body. When fitting the male and female connectors with each other, while sliding on the arm guide surfaces and the tapered surface of the inclined projection, the flexible arms are flexed inwardly and upwardly, thereby positively preventing the two connectors from being imperfectly fitted with each other.
    Type: Grant
    Filed: May 24, 2001
    Date of Patent: July 15, 2003
    Assignee: Yazaki Corporation
    Inventor: Tomomi Endo
  • Patent number: 6589079
    Abstract: A connector (21) includes at least one terminal (23) and a connector housing (22) having a terminal receiving chamber into which the at least one terminal (23) is insertable. The connector housing (22) has at least one connection port (33) through which a mating terminal is insertable, a detection-pin inserting port (34) through which a lance-displacement detecting pin of a connector conduction-test tool is insertable, and a contact-pin inserting port (35) through which a conduction contact pin (24) of the connector conduction-test tool is insertable. The contact-pin inserting port 35 is formed in such a manner as to cut away an edge portion of the connection port (33).
    Type: Grant
    Filed: March 13, 2001
    Date of Patent: July 8, 2003
    Assignee: Yazaki Corporation
    Inventors: Motohisa Kashiyama, Haruki Yoshida
  • Patent number: 6589080
    Abstract: A connector has a housing (20) with a plurality of cavities (21) for accommodating terminal fittings (10). A resiliently deflectable lock (37) is provided at the bottom surface of each cavity (21). Terminal fittings (10) are inserted into the cavities (21). Front and rear stabilizers (13A, 13B) project down from each terminal fitting (10) and are separate by an engaging recess (17) into which a portion (38) of the respective lock (37) is inserted for locking the terminal fitting (10) in the cavity (21).
    Type: Grant
    Filed: December 26, 2001
    Date of Patent: July 8, 2003
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventor: Akane Tanaka
  • Patent number: 6589082
    Abstract: An electric connector is connected to an electric wire of a first article, and is to be fitted onto the first article and/or a second article. The contact of the electric connector shall directly contact a conductive part of the second article. To prevent the electric wire or the wired contact from coming of the housing of the connector, a retainer is provided. The electric connector's housing has a receiving groove that is recessed into the front housing face which faces the second article, and that has an open groove end at one housing side face and a closed groove end at another housing side face. A contact is inserted into the receiving groove and includes a connecting part to be connected to the electric wire of the first article and a contacting part which is located closer than the connecting part to the closed groove end and which is to contact the conductive part of the second article.
    Type: Grant
    Filed: December 13, 2001
    Date of Patent: July 8, 2003
    Assignee: J. S. T. Mfg. Co., Ltd.
    Inventors: Masaaki Harasawa, Saburou Kase, Satoru Kihara
  • Patent number: 6589083
    Abstract: A connector housing (10) has cavities (23) and a retainer insertion hole (27) that crosses the cavities (23). A retainer (30) can be held at a partial or full locking position in the retainer insertion hole (27). The retainer (30) has pairs of resilient locks (33) and fixed locks (35) for the corresponding cavities (23). The resilient locks (33) project into the cavities (23) when the retainer (30) is at the partial locking position while the fixed locks (35) project into the cavities,(23) when the retainer (30) is at the full locking position. The resilient locks (33) are wider than the cavities (23) and hence continue engaging the terminal fittings (10) while the retainer (30) is moved from the partial locking position to the full locking position. Thus, the terminal fittings (10) are locked doubly by the fixed locks (33) and parts of the resilient locks (33) when the retainer (30) is at the full locking position.
    Type: Grant
    Filed: March 11, 2002
    Date of Patent: July 8, 2003
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Yutaka Kobayashi, Hajime Kawase, Ryotaro Ishikawa
  • Patent number: 6582242
    Abstract: A first elastic member is provided at a rear end portion of a terminal. An inner housing includes an inner peripheral wall which defines a first chamber for retaining at least a front end portion of the terminal, and an outer peripheral wall extending parallel with the inner peripheral wall while defining a gap therebetween. An outer housing includes a peripheral wall which defines a second chamber for retaining at least first elastic member. A second elastic member is fitted around the peripheral wall of the outer housing. The inner housing and the outer housing are engaged with each other such that a front end portion of the peripheral wall of the outer housing is inserted into the gap formed between the inner peripheral wall and the outer peripheral wall of the inner housing, and such that a rear end face of the outer peripheral wall of the inner housing is brought into an intimate contact with the second elastic member.
    Type: Grant
    Filed: June 19, 2001
    Date of Patent: June 24, 2003
    Assignee: Yazaki Corporation
    Inventors: Takao Murakami, Masaru Fukuda
  • Patent number: 6575788
    Abstract: A connector has a housing (30) with a retainer (50) that is movable normal to the longitudinal direction of female terminal fittings (20) along the front of a terminal accommodating portion (31) between a partial locking position where the insertion and withdrawal of female terminal fittings (20) are permitted and a full locking position where the female terminal fittings (20) are locked. Jig insertion holes (56) are formed in a front-stop plate (51) of the retainer 50. The female terminal fitting (20) can be withdrawn by inserting a jig through the jig insertion hole (56) to unlock a lock (34) while the retainer (50) is at the partial locking position. The distance between the front-stop plate (5)1 and the locks (34) engaged with the female terminal fittings (20) is short as compared to conventional front-type retainers that move longitudinally. Thus, the locks 34 can be unlocked more easily and the terminal fittings (20) can be easily withdrawn without detaching the retainer (50).
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: June 10, 2003
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Kazuhiko Nimura, Naoya Kurimoto