Pivoted Patents (Class 66/106)
  • Patent number: 10287715
    Abstract: A circular knitting machine (1) for knitwear or hosiery, comprising a bearing structure, a needle-bearing organ (3) and a plurality of mobile needles (N) for producing a knitted fabric; a plurality of flanked stitch-forming slots (5) is defined in an external surface (4) of the needle-bearing organ (3), each of which slots movably houses a respective needle actuable with alternating motion along the relative stitch-forming slot. The needle-bearing organ is superiorly provided with a knit-forming plane (P) destined to restingly receive portions of knitting situated between two contiguous needles (N).
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: May 14, 2019
    Assignee: SANTONI S.P.A.
    Inventors: Ettore Lonati, Fausto Lonati
  • Patent number: 9010156
    Abstract: In the case of a single circular knitting machine consisting of a central rotatable needle cylinder (Z), around which a sinker ring (PR) comprising sinkers (P) as well as stationary cam systems (S) are arranged, which act on the needles (1), which are in each case assigned to the sinkers (P) and which can be moved vertically up and down, so as to replace the pitches, which hit one another rigidly, with a sinker grid system, which is flexible per se, which is automatically oriented in the needle gaps, a rocker (44) comprising an upper and a lower control bump (45) being provided in each case on the end of the sinkers (P), which is spaced apart from the needle, the sinker ring (PR), at the end below the sinkers (P), which is spaced apart from the needle, is embodied as a pivot point projection (40) comprising pivot point slits (41), in which the sinkers (P) are accommodated with their pivot inlet (43) so that they are capable of being tilted and the sinkers (P) being are laterally fixed in the needle gaps with
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: April 21, 2015
    Assignee: Hugo Kern & Liebers GmbH & Co. KG
    Inventor: Ulrich Hoffman
  • Patent number: 8468855
    Abstract: A downward pressing mesh mechanism and sinker thereof for flat knitting machines in which the downward pressing mesh mechanism includes a needle seat containing a bearing surface to hold a plurality of sinkers and knitting needles separated by spacers and a cam holder located above the sinkers to hold a cam. The cam has a guide track to drive the sinkers swinging. The spacers are vertically run through by a bracing shaft at a lower side. Each sinker includes a yarn pressing portion to press a yarn to form a mesh, a swing guide portion driven by the guide track and a shaft rotating recess to couple with the bracing shaft. The sinker thus structured is simpler and durable, hence can be produced and assembled, or repaired and replaced easier and faster. Thus manpower and material costs can be reduced, and product prices also are decreased to meet market requirements.
    Type: Grant
    Filed: September 16, 2011
    Date of Patent: June 25, 2013
    Assignee: Pai Lung Machinery Mill Co., Ltd.
    Inventors: Yi-Chen Chen, Kai-Ying Cheng, Jian-Hao Peng
  • Publication number: 20130067964
    Abstract: A downward pressing mesh mechanism and sinker thereof for flat knitting machines in which the downward pressing mesh mechanism includes a needle seat containing a bearing surface to hold a plurality of sinkers and knitting needles separated by spacers and a cam holder located above the sinkers to hold a cam. The cam has a guide track to drive the sinkers swinging. The spacers are vertically run through by a bracing shaft at a lower side. Each sinker includes a yarn pressing portion to press a yarn to form a mesh, a swing guide portion driven by the guide track and a shaft rotating recess to couple with the bracing shaft. The sinker thus structured is simpler and durable, hence can be produced and assembled, or repaired and replaced easier and faster. Thus manpower and material costs can be reduced, and product prices also are decreased to meet market requirements.
    Type: Application
    Filed: September 16, 2011
    Publication date: March 21, 2013
    Applicant: PAI LUNG Machinery Mill Co., Ltd.
    Inventors: Yi Chen CHEN, Kai Ying CHENG, Jian Hao PENG
  • Publication number: 20130067962
    Abstract: A sinker control apparatus for flat knitting machines located on a transverse board over a plurality of knitting needles to drive parallel sinkers hinged between the knitting needles to rotate. The sinker control apparatus includes a base, a linked movement portion located on the base to perform driving movements, a first control cam and a second control cam hinged on the linked movement portion, and a switching portion coupled with the linked movement portion. The switching portion includes at least one connection rod connecting to the linked movement portion, a switching seat coupled on the connection rod and an elastic element coupled around the connection rod to provide a butting force to the switching seat towards the transverse board. The switching seat has a magnetic attracting portion at one side facing the transverse board to attract the transverse board magnetically.
    Type: Application
    Filed: September 19, 2011
    Publication date: March 21, 2013
    Inventors: Yi Chen CHEN, Kai Ying Cheng, Jian-Hao Peng
  • Patent number: 8397541
    Abstract: A sinker control apparatus for flat knitting machines located on a transverse board over a plurality of knitting needles to drive parallel sinkers hinged between the knitting needles to rotate. The sinker control apparatus includes a base, a linked movement portion located on the base to perform driving movements, a first control cam and a second control cam hinged on the linked movement portion, and a switching portion coupled with the linked movement portion. The switching portion includes at least one connection rod connecting to the linked movement portion, a switching seat coupled on the connection rod and an elastic element coupled around the connection rod to provide a butting force to the switching seat towards the transverse board. The switching seat has a magnetic attracting portion at one side facing the transverse board to attract the transverse board magnetically.
    Type: Grant
    Filed: September 19, 2011
    Date of Patent: March 19, 2013
    Assignee: Pai Lung Machinery Mill Co., Ltd.
    Inventors: Yi Chen Chen, Kai Ying Cheng, Jian-Hao Peng
  • Patent number: 7980100
    Abstract: A sinkerless knitting machine with latch needles, comprising a needle holder with a plurality of slots on one face, each slot accommodating a needle. Knitting retainers are provided, each with a body composed of at least two side-by-side interconnected laminar elements. At least two laminar elements of each knitting retainer are arranged in a same or in two contiguous slots of the needle holder. At least one of the laminar elements composing a knitting retainer has a retention portion defining a stop shoulder for the knitting. Each knitting retainer can move on command from a first position, in which it does not interfere with the knitting being formed, to a second position, in which it is inserted, with the retention portion, between two contiguous needles, in a region which faces the knitting forming plane, in order to retain the portion of knitting that lies between two contiguous needles.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: July 19, 2011
    Assignee: Santoni S.p.A.
    Inventors: Ettore Lonati, Tiberio Lonati, Fausto Lonati
  • Patent number: 7963127
    Abstract: A knitting system (6) wherein said system causes a rocker guide (23) to move the holding-down and knock-over sinker 5 as a function of the longitudinal position of the knitting needle (4). Consequently, the pivoting movement of the holding-down and knock-over sinker (5) is forced to follow the back-and-forth linear movement of the knitting needle (4). A single box cam is sufficient for controlling this knitting system (6). In any event, it is only necessary to allocate box cams to the knitting needles (4). The holding-down and knock-over sinkers (5) do not require dedicated drives and box cams.
    Type: Grant
    Filed: June 2, 2009
    Date of Patent: June 21, 2011
    Assignee: Goz-Beckert KG
    Inventor: Uwe Stingel
  • Publication number: 20090301138
    Abstract: A knitting system (6) wherein said system causes a rocker guide (23) to move the holding-down and knock-over sinker 5 as a function of the longitudinal position of the knitting needle (4). Consequently, the pivoting movement of the holding-down and knock-over sinker (5) is forced to follow the back-and-forth linear movement of the knitting needle (4). A single box cam is sufficient for controlling this knitting system (6). In any event, it is only necessary to allocate box cams to the knitting needles (4). The holding-down and knock-over sinkers (5) do not require dedicated drives and box cams.
    Type: Application
    Filed: June 2, 2009
    Publication date: December 10, 2009
    Applicant: GROZ-BECKERT KG
    Inventor: Uwe Stingel
  • Patent number: 7380419
    Abstract: There are provided a movable sinker apparatus of a weft knitting machine and a sinker which are capable of holding and pressing down a knitting yarn of a previous loop and sufficiently pulling down a knitting fabric. At forward positions of the sinkers, second protruding portions are close to each other, and thus a knitting fabric can be sandwiched therebetween. When the front and rear needle beds are faced each other so as to be symmetric at the needle bed gap, the forces of the wire springs are applied so as to pull down the knitting fabric in the vertical direction. A knitting yarn receiving portion is formed on a first protruding portion of the front end portion on the sinker, and thus it is possible to retain a knitting yarn of a previous loop and prevent the knitting yarn from moving as the knitting needle moves forward.
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: June 3, 2008
    Assignee: Shima Seiki Manufacturing Limited
    Inventor: Masaki Miyamoto
  • Patent number: 7174748
    Abstract: A movable sinker (8) can move a tip portion (8c) forward and backward relative to a needle bed gap (2) through pivotal displacement by setting, as a support point, a concave portion (5a) of a needle plate (5). A wire spring (10) energizes the movable sinker (8) so that the tip portion (8c) is moved forward into the needle bed gap (2). A stopper (20) on which an abutment portion (8e) of the tip portion (8c) of the movable sinker (8) abuts to control the movable sinker (8) to be pivotally displaced by the energization of the wire spring (10) is provided in a position in the bottom portion of the base (4) near the needle bed gap (2). The maximum amount of press-in of the tip portion (8c) of the movable sinker (8) is regulated by an abutment of the abutment portion (8e) on the stopper (20). The stopper (20) can adjust a forward and backward movement amount relative to the needle bed gap (2) by a position adjusting mechanism (21).
    Type: Grant
    Filed: July 28, 2004
    Date of Patent: February 13, 2007
    Assignee: Shima Seiki Manufacturing Limited
    Inventor: Minoru Sonomura
  • Patent number: 7152435
    Abstract: A weft knitting machine having a movable sinker capable of securing a large space at a needle bed near a knitting fabric knitting area and making a pause in the state of stopping action on the knitting fabric knitting area. A sinker operating cam mechanism (10) installed in a carriage acts on the butt (12c) of a sinker jack (12) to move the sinker jack (12) backward from a mouth part (2) so that the acting part (8c) of the movable sinker (8) can retract from the mouth part (2). The sinker jack (12) is locked to a moved back position by a locking mechanism (16). Since a wire (17) passed through a needle plate (5) is utilized to lock the sinker jack (12) in the locking mechanism (16), the locking mechanism (16) can be reduced in size. To lock the sinker jack (12) to the wire (17), the sinker jack (12) comprises a projection (12f).
    Type: Grant
    Filed: July 28, 2004
    Date of Patent: December 26, 2006
    Assignee: Shima Seiki Manufacturing Limited
    Inventors: Minoru Sonomura, Masaki Miyamoto, Toshiaki Morita
  • Patent number: 6568222
    Abstract: A sinker device comprises a sinker jack 50 which can be freely advanced and retracted with respect to a needle bed gap 4 and a sinker 30 supported on an upper surface of the sinker jack formed as a supporting surface in a freely swingable manner. The sinker 30 and the sinker jack 50 have sliding contact surfaces sidably contactable with each other which are each formed at a front side thereof with respect to a swinging pivot point. When the sinker jack 50 is advanced toward the needle bed gap 4 to move relative to the sinker 30, the sinker 30 takes the swinging attitude controlled by the sliding contact relation between the respective sliding contact surfaces of the sinker and the sinker jack, so that the sinker 30 is controllably swung to at least a knitted loop pushing level, a knitted loop releasing level and a stitch forming level.
    Type: Grant
    Filed: April 24, 2002
    Date of Patent: May 27, 2003
    Assignee: Shima Seiki Mfg., Ltd.
    Inventor: Toshiaki Morita
  • Patent number: 6401495
    Abstract: A sinker (50) for a knitting machine operating according to the relative technique is described. The sinker (50) contains a front (32), a back (33), a head (34) arranged on one end and having a sinker throat (35) and a knock-over edge (36), a control butt (38) intended to make possible movements in a longitudinal direction (v) and protruding from the front (32), and at least one rocking element (39, 40) designed to make possible pivot movements transverse to the longitudinal direction (v) and provided on the front (32). According to the invention, the sinker (50) also has a spring element (41) intended to compensate for manufacturing inaccuracies, acting transverse to the longitudinal direction (v) (FIG. 4). A knitting machine equipped with such a sinker (50) is also described.
    Type: Grant
    Filed: March 20, 2001
    Date of Patent: June 11, 2002
    Assignee: SIPRA Patententwicklungs- und Beteiligungsgesellschaft mbH
    Inventors: Hans-Martin Eppler, Dietmar Traenkle
  • Patent number: 6167730
    Abstract: A sinker (1) for a circular knitting machine contains a shaft (2) with a recess (11) in which a selection element (12) provided with a controllable raising butt (20) is mounted swivellably and can be swivelled to and fro between a position in which the raising butt (20) is retracted into the recess (11) and a position in which the raising butt (20) projects upwards over the upper side of the shaft (2). A spring (21), which can be attached to the selection element (12) or the shaft (2), serves to pre-tension the selection element (12) into one of these two positions (FIG. 1). In addition, a selection device is provided for selecting the sinker (1) in accordance with a pattern.
    Type: Grant
    Filed: May 19, 1999
    Date of Patent: January 2, 2001
    Assignee: SIPRA Patententwicklungs- u. Beteiligungsgesellschaft mbH
    Inventor: Rolf Willmer
  • Patent number: 6092396
    Abstract: A knitting machine has a needle bed, a plurality of needles, plates arranged between the needles, each of the plates having a front operational part provided with edges engaging in a loop forming region and displaceable about an axis extending along the needle bed between a front position and a rear position, and a shaft part arranged substantially parallel to the needles and longitudinally displaceable for driving the plates, the operational part and the shaft part being connected by an elastic springy web to form a one-piece element.
    Type: Grant
    Filed: June 10, 1998
    Date of Patent: July 25, 2000
    Assignee: H. Stoll GmbH & Co.
    Inventors: Franz Schmid, Martin Wornle
  • Patent number: 6079233
    Abstract: Grooves for receiving a movable loop forming plate are made in both front and back needle beds at the top ends thereof on the trick gap side, and movable loop forming plates are mounted in the grooves. A loop forming edge is provided at the top end of each movable loop forming plate, and the plate is energized by a spring in a direction that the plate moves away from the trick gap, and the plate is made to move forward or backward by a movable loop forming plate control means, around a fulcrum that is provided on the needle bed in the bottom of the trick gap.
    Type: Grant
    Filed: August 11, 1998
    Date of Patent: June 27, 2000
    Assignee: Shima Seiki Manufacturing, Ltd.
    Inventor: Masahiro Shima
  • Patent number: 6014874
    Abstract: An apparatus for guiding yarn into a hook or to a predetermined position of a rear face of a needle of a flat knitting machine, and for guiding the yarn without making large horizontal advancing and retracting movements of a yarn guiding member of the yarn guiding apparatus. The apparatus guides the yarn, when a yarn pushing down operating edge at an end of the yarn guide member is engaged with and pushes down the yarn so that the yarn is slidably moved, without applying a high resistance to the yarn and parallel needles and sinkers, on at least one pair of needle beds having head portions opposed to each other with respect to the center of knock-over edge portions. Yarn holding members, each having a yarn pushing down edge operating at an end thereof, are supported for sliding movement toward the knock-over edge portion, with means for moving each of the yarn pushing down operating edges downward during or after sliding advancement of the yarn holding member.
    Type: Grant
    Filed: September 15, 1998
    Date of Patent: January 18, 2000
    Assignee: Shima Seika Mfg., Ltd.
    Inventors: Masahiro Shima, Minoru Sonomura
  • Patent number: 5918483
    Abstract: The flatbed knitting machine includes opposing needle beds (V,H) with longitudinally movable needles (11,12); a carriage provided with cams (14,15,16) and sinkers (17,18; 17',18'; 17",18") having a closed position (S1), an end position (S2) and an open position (S0) and movable between the needles (11,12) with the help of the cams (14,15,16) in the carriage. The sinkers (17,18; 17',18'; 17",18") each have a hook-shaped projection (25, 26; 25', 26') that occludes or encloses from above a side of a loop on an adjacent needle in the needle beds when the sinkers are in the closed position.
    Type: Grant
    Filed: February 4, 1998
    Date of Patent: July 6, 1999
    Assignee: H. Stoll GmbH & Co.
    Inventors: Franz Schmid, Gerhard Goetz
  • Patent number: 5862681
    Abstract: The present invention relates to improved pile fabrics containing courses in which at least two pile forming yarns are meshed across a complete course together cooperatively in various fabric constructions, and respectively into a ground fabric, and forming pile loops one another alternatively in succeeding wales or areas. The fabric is manufactured according to a process in which needles are moved into a feeding position in which they remain, meanwhile in at least two succeeding sections, alternatively, pile elements are selected and raised and after the feeding of a pile yarn are retracted to an intermediate position. The pile yarns are controlled separately from one another and are unaffected in their movement to the loop-forming and meshing action.
    Type: Grant
    Filed: January 8, 1997
    Date of Patent: January 26, 1999
    Assignee: TMG Stefalex Handels AG
    Inventor: Walter R. Schmidt
  • Patent number: 5713220
    Abstract: A pile patterning mechanism for a circular knitting machine comprises: a sinker bed provided with a plurality of radial, horizontal grooves and disposed on the outer circumference of an upper end of a needle cylinder; a plurality of pile sinkers fitted in the radial, horizontal grooves of the sinker bed so as to be slidable and tiltable. A plurality of horizontal pile jacks each having a plurality of butts are fitted in the radial, horizontal grooves of the sinker bed on the radially outer side of the pile sinkers so as to be slidable and tiltable; and a control unit is provided for controlling the pile sinkers and the pile jacks to slide and tilt the pile jacks and the pile sinkers. The control unit includes a plurality of sinker cams, a jack selecting device provided with a plurality of actuators, and jack cams. The horizontal arrangement of the pile jacks ebables the pile jacks to exert a reliable action on the pile sinker.
    Type: Grant
    Filed: July 29, 1996
    Date of Patent: February 3, 1998
    Assignee: Nagata Seiki Kabushiki Kaisha
    Inventors: Masahiro Seino, Hiromasa Hirose, Satoshi Okoshi, Shinya Yamamoto
  • Patent number: 5570592
    Abstract: The sinker actuating apparatus has a sinker actuator which is displaced on a needle bed so as to move a movable sinker to a pressing or releasing position. A connector for connecting the actuator is non-fixedly provided to a needle moving device so that the actuator is moved in response to the movement of the needle mover. First and second stopper are provided for restricting the advanced or retracted positions of the sinker actuator. A resilient member is arranged to give an advancing force to the actuator.
    Type: Grant
    Filed: November 8, 1995
    Date of Patent: November 5, 1996
    Assignee: Tsudakoma Kogyo Kabushiki Kaisha
    Inventor: Yujiro Takegawa
  • Patent number: 5557948
    Abstract: A yarn guiding apparatus for a flat knitting machine in which a pair of opposed needle beds defines a knock over edge area and a center line therebetween. A yarn holding member is arranged between a needle and a sinker mounted on a needle bed. The yarn holding member is moveable relative to the knock over edge area and has an operating face for pushing down a yarn fed from a yarn feeder to the knock over edge area. The operating face is configured for contacting the yarn and for pushing the yarn down toward a needle when the yarn holding member is advanced toward the knock over edge area. The yarn holding member is advanceable to a position in which a portion of the yarn holding member extends beyond the center line defined by the opposing needle beds.
    Type: Grant
    Filed: April 20, 1995
    Date of Patent: September 24, 1996
    Assignee: Shima Seiki Mfg. Ltd.
    Inventors: Masahiro Shima, Minoru Sonomura
  • Patent number: 5475991
    Abstract: A sinker is disposed at the front end of a needle bed of a flat knitting machine so as to be capable of swinging displacement. A groove guiding advancing, retreating and swinging of the sinker is formed at the front end of the needle bed. A knitting yarn holding part is formed at the front end of a sinker plate. A knitting yarn drop preventive part, for preventing knitting yarn between a knitting needle and the sinker from dropping into the groove during knitting, is disposed adjacent to the sinker.
    Type: Grant
    Filed: December 15, 1993
    Date of Patent: December 19, 1995
    Assignee: Shima Seiki Manufacturing Limited
    Inventors: Masahiro Yabuta, Minoru Kyotani
  • Patent number: 5475990
    Abstract: In a two-bed flat knitting machine separate sinker control devices are provided for controlling sinkers arranged between needles and have a device body laterally releasably mountable on a machine carriage. They extend only over an operating region of a cam system and their control parts are formed so that they are displaced during a carriage stroke return automatically to an operative position or a rest position.
    Type: Grant
    Filed: October 27, 1994
    Date of Patent: December 19, 1995
    Assignee: S. Stoll GmbH & Co.
    Inventors: Franz Schmid, Reiner Haas
  • Patent number: 5408849
    Abstract: A flat bed knitting machine has at least one needle bed having mobile nees and stationary comb sinkers disposed in the needle bed. Movable holding-down sinkers are added to the needle bed to ensure that stitches are held in place.
    Type: Grant
    Filed: July 20, 1993
    Date of Patent: April 25, 1995
    Assignee: Universal Maschinenfabrik Dr. Rudolf Schieber GmbH & Co. KG
    Inventors: Reinhold Schimko, Roland Wittwer
  • Patent number: 5355699
    Abstract: The present invention provides a flat knitting machine having a simple construction and provided with rocking sinkers capable of stably operating for high-speed knitting operation without damaging the yarns, and a method of operating the rocking sinkers. The flat knitting machine is provided with rocking sinkers (8), sinker operating means (3) for operating the sinkers (8), needle operating means (19), and a power transmitting mechanism (4, 21) interlocking the needle operating means (19) and the sinker operating means (3) to operate the sinker operating means (3) by at least part of the motion of the needle operating means (19).
    Type: Grant
    Filed: April 14, 1993
    Date of Patent: October 18, 1994
    Assignee: Tsudakoma Kogyo Kabushiki Kaisha
    Inventors: Katsumi Inagaki, Atsuo Tsuboi, Shoichi Komasaka
  • Patent number: 5333473
    Abstract: A sinker mechanism for a flat knitting machine having at least one front needle bed and one rear needle bed, is provided with a row of sinker assemblies, each sinker assembly having a needle plate, a swingable sinker next to a front region of the needle plate, and a yarn guide sheet fixedly mounted to a needle bed, the swingable sinker having at front end a yarn holding portion, the yarn guide sheet having at front end a yarn guide edge, and when the swingable sinker turns forward with its yarn holding portion moving down, the yarn guide edge of the yarn guide sheet comes above the yarn holding portion of the swingable sinker and projects outwardly of the front end of the sinker towards an intermediate position between the front ends of the opposite needle beds.
    Type: Grant
    Filed: July 9, 1993
    Date of Patent: August 2, 1994
    Assignee: Shima Seiki Mfg., Ltd.
    Inventor: Masaki Miyamoto
  • Patent number: 5280712
    Abstract: The present invention relates to a flat knitting machine provided with swing sinkers and presser bars which can move into and out from a space provided between two needle beds in relative relationship so that they effectively urge the loops or stitches of yarn. Accordingly, both plain and rib knitting operations will be carried out with ease.
    Type: Grant
    Filed: August 15, 1991
    Date of Patent: January 25, 1994
    Assignee: Shima Seiki Mfg., Ltd.
    Inventors: Toshinori Nakamori, Masahiro Yabuta, Minoru Sonomura
  • Patent number: 5231854
    Abstract: The sinkers (15) which are used together with the needles of a two-bed flat knitting machine and which are located opposite one another in the needle beds (1, 2) have an upper projection (17) and a lower projection (18) which, in one of their positions, both have a retaining effect on the stitches or stitch rows made.
    Type: Grant
    Filed: August 21, 1992
    Date of Patent: August 3, 1993
    Assignee: H. Stoll GmbH & Co.
    Inventors: Franz Schmid, Emil Fohl, Robert Kurz, Fritz Fleiner
  • Patent number: 5134865
    Abstract: A sinker mechanism which includes multiple knitting needles placed in parallel above a needle bed with each sinker being mounted so that it can rock up and down so that its tip descends between adjacent knitting needles. A yarn-catching hook is provided at one sinker end; downward pressure is applied by a spring that can be removed from and replaced into the sinker so the yarn-catching hook will drop between adjacent knitting needles, and this downward force is adjustable so the yarn-catching hook's position is a function of the tension in the yarn it is holding. The sinker is located in the cut-out portion of the needle plate with the capability to rock up and down so that its back end can be linked to the end of the needle plate, and that the plate and is configured so that an arm projects to touch the rear cam.
    Type: Grant
    Filed: December 26, 1990
    Date of Patent: August 4, 1992
    Assignee: Shima Seiki Mfg., Ltd.
    Inventors: Masahiro Shima, Masahiro Yabuta
  • Patent number: 5134864
    Abstract: The invention sets forth a movable sinker which is to be disposed on a needle bed of a flat knitting machine, employing compound needles. The movable sinker is provided with a cam abutting part, a stopper with a pivot hole between the cam abutting part and the stopper, a front tip part includes a guide part with an inclined lower edge which guides the knitting thread to a stopping part. The guide part is so formed that the knitting thread supplied at the time of knitting by this flat knitting machine is securely guided in the hook part of the knitting needle, and the stitch pull-in amount of the carriage at the time of forming a stitch is reduced.
    Type: Grant
    Filed: February 7, 1991
    Date of Patent: August 4, 1992
    Assignee: Shima Seiki Mfg., Ltd.
    Inventors: Masahiro Yabuta, Toshinori Nakamori, Minoru Sonomura
  • Patent number: 4827739
    Abstract: By the use of special latch needles (21) whose latch (14) can take up two stable positions lying within the limits of its pivotal movement and out of which it can be moved only against the action of a spring, there is ensured, even in fast running flat knitting machines with a transfer mechanism and with stitch presser and/or stitch hold-down elements, and even during the formation of long, loose stitches and loops, reliable trapping of the yarn and manipulation of the stitches and loops by the knitting elements. (FIG.
    Type: Grant
    Filed: August 28, 1987
    Date of Patent: May 9, 1989
    Assignee: H. Stoll GmbH & Co.
    Inventors: Ernst Goller, Franz Schmid, Hermann Schmodde
  • Patent number: 4751829
    Abstract: A circular knitting machine includes needles and loop-sinking sinkers longitudinally movable relative to each other in opposite directions. Each needle is provided with a non-movable slide. The movements of the needles and the sinkers are controlled by cams. Each slide has a tip. The control cam for the needle head and the control cam for the sinker and the height of the needle slide tip are selected so that the tips of the needle slides lie in the region which extends between the point of crossing of said control cams and the maximal vertical level of the knockover edge of the sinker.
    Type: Grant
    Filed: November 17, 1986
    Date of Patent: June 21, 1988
    Assignee: Sipra Patententwicklungs-und Beteiligungs-Gesellschaft mbH
    Inventor: Ernst-Dieter Plath
  • Patent number: 4741181
    Abstract: A knitting machine for producing mesh products has a needle carrier provided with a plurality of guiding grooves having an upper groove end and a base, a plurality of needles and a plurality of plate members alternatingly arranged in the guiding grooves so that the plate members are longitudinally displaceable and turnable in the guiding grooves and have a rear side abutting against the base of the guiding grooves. The knitting machine further has a device for cleaning at least one location and supplying an air stream which raises in the guiding grooves upwardly toward the groove end into a space formed between the rear side of the plate members and the base of the guiding grooves and limited from below by a turning region by the plate members.
    Type: Grant
    Filed: September 8, 1986
    Date of Patent: May 3, 1988
    Assignee: Sipra Patententwicklungs-und Beteiligungsgesellschaft mbH
    Inventor: Ernst-Dieter Plath
  • Patent number: 4713948
    Abstract: The sinkers of both needle beds of a double bed flat knitting machine are pivotable so as to form a complete bridge over the gap between the needle beds. They have a loop-forming edge which is formed, with respect to the direction of take down for the knitted fabric, underneath the projections of the sinkers, which make up the bridge. Holding down of the old stitches in the gap between the needle beds is therefore ensured and a loop equalizing movement can be effected by means of the sinkers.
    Type: Grant
    Filed: March 23, 1987
    Date of Patent: December 22, 1987
    Assignee: H. Stoll GmbH & Co.
    Inventors: Henning Schmidt, Walter Nedele, Hermann Schmodde
  • Patent number: 4693092
    Abstract: In a knitting machine with longitudinally movable latch members and sinkers which are pivotable and longitudinally movable in the same direction, sinker-controlling cams and needle controlling cams are arranged on individual cam supports which are adjustable relative to each other in a longitudinal direction and transverse direction. Adjustable loop-sinking cams are provided in a sinker cam ring or a needle cam ring.
    Type: Grant
    Filed: September 11, 1985
    Date of Patent: September 15, 1987
    Assignee: Sipra Patententwicklungs-und Beteiligungs-Gesellschaft mbH
    Inventor: Ernst-Dieter Plath
  • Patent number: 4633684
    Abstract: A knitting machine has at least one needle bed equipped with longitudinally displaceable needles controlled by a needle cam curve, and between the needles are protruding sinkers controlled by a sinker cam curve. The sinkers are movably supported in at least the longitudinal direction of the needles and being controlled such that at a given feed, after the locking in of the yarn, they are moved counter to the lowering movement of the associated needles and after casting off of the loop are moved counter to the needle raising movement. The needle and sinker cam curves have adjoining steadily curved arc portions that in the case of the needle cam curve are sinusoidal and merge steplessly with one another. To reduce noise and wear, especially at very high knitting speeds, the sinker cam curve is substantially sinusoidal, at least in the loop forming zone.
    Type: Grant
    Filed: March 17, 1986
    Date of Patent: January 6, 1987
    Assignee: Memminger GmbH
    Inventor: Falk Kuhn
  • Patent number: 4608841
    Abstract: In a knitting machine having at least one needle bed, the needle bed is equipped with needles located beside one another, which are guided in a longitudinally displaceable manner under the control of a needle cam race. Combined hold-down and knock-over sinkers that are movable both in the longitudinal direction of the needles and transversely thereto are pivotably supported between the needles, their longitudinal and transverse movement being controlled by sinker cam race surfaces.In order to attain satisfactory, relatively low-friction guidance of the needles and sinkers while operating at high speed, the apparatus is designed such that the needles are disposed on longitudinal ribs disposed spaced apart on the needle bed, and the sinkers are disposed between these ribs.
    Type: Grant
    Filed: July 26, 1984
    Date of Patent: September 2, 1986
    Assignee: Memminger GmbH
    Inventors: Alfred Buck, Falk Kuhn
  • Patent number: 4584851
    Abstract: A knitting machine has plate members and needles movable opposite to one another during sinking of the threads. The plates are of a short length and located between guide webs of a separate plate carrier, whereas the needles are longitudinally displaceable between guide webs of a needle carrier with needle shafts sliding on the free end surfaces of the guide webs of the plate carrier. Control curves for the needles and the plate members are formed so that the withdrawal movement of a needle and at least at a half needle pitch prior to the opposite driving out movement of a plate member preceding in the working direction.
    Type: Grant
    Filed: March 26, 1984
    Date of Patent: April 29, 1986
    Assignee: Sipra Patententwicklungs-und Beteiligungsgesellschaft
    Inventor: Ernst-Dieter Plath
  • Patent number: 4576018
    Abstract: The invention relates to stitch-forming machines, which have needles guided on a needle support means for longitudinal displacement and controlled by needle cams and which also have sinkers displaceable between the needles in the region of their heads, these sinkers having sinker throats and knitting surfaces and being controlled by sinker cams. In order to shorten the distance to be travelled by the needles during drawing of the loops it is suggested that the sinkers be mounted in a plane cam guideway by means of a projecting swivel butt for pivoting movement only and not be displaceable in a longitudinal direction and that the distance from the sinker throats and knitting surfaces to the adjacent edge of the needle support means be alterable solely due to pivoting movement of the sinker.
    Type: Grant
    Filed: May 25, 1984
    Date of Patent: March 18, 1986
    Assignee: Terrot Strickmaschinen GmbH
    Inventor: Alfred Schindele
  • Patent number: 4574596
    Abstract: A stitch-forming machine which has needles guided on a needle support for displacement in the longitudinal direction and controlled by needle cams and also has holding-down and knocking-over sinkers which are adapted for displacement between the needles in the region of their heads and are moved by sinker cams in the longitudinal and transverse directions relative to the needle support.
    Type: Grant
    Filed: June 6, 1984
    Date of Patent: March 11, 1986
    Assignee: Terrot Strickmaschinen GmbH
    Inventors: Werner Engelfried, Gerhard Muller
  • Patent number: 4532781
    Abstract: In order to increase the operating speed of the knitting machine and to attain a fine needle cut, sinkers (7), with their shaft (12), are guided on a needle carrier (1), and simultaneously forming guide ribs for adjacent needle shafts (3). A projection cam (16) which imparts to the sinkers (7) the movement transverse to the needles (2) is disposed directly on the needle carrier (1).
    Type: Grant
    Filed: October 21, 1982
    Date of Patent: August 6, 1985
    Assignee: Memminger GmbH
    Inventor: Alfred Buck