Patents Assigned to NHK Spring Co., Ltd.
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Publication number: 20160111116Abstract: A flexure chain blank sheet includes a plurality of frame units. Each of the frame units includes a frame portion, and a plurality of flexure elements arranged within the frame portion. The frame portion includes lengthwise frames extending in a longitudinal direction of the flexure elements, and lateral frames extending in a width direction of the flexure elements. A slit that extends along the lateral frames, a connection portion, and recesses are formed between adjacent frame units. An opening width of the recesses is greater than an opening width of the slit. The connection portion includes a portion-to-be-cut which is to be cut by a cutter. The recesses allow insertion of the cutter.Type: ApplicationFiled: September 28, 2015Publication date: April 21, 2016Applicant: NHK SPRING CO., LTD.Inventors: Yukie YAMADA, Takumi KARASAWA
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Publication number: 20160111117Abstract: A flexure chain blank sheet includes frame units. Each frame unit includes a frame portion, and flexure elements. The flexure element includes a distal end portion, and an extending portion. The frame portion includes a pair of lengthwise frames and a pair of lateral frames. The first lateral frame connects between tail portions of the flexure elements. The second lateral frame is formed of a distal end linking portion which is constituted by connecting between respective adjacent extending portions. The distal end linking portion includes first cut-off portions to be cut along a longitudinal direction between the adjacent extending portions, and second cut-off portions to be cut along a width direction between the distal end portion and the extending portion.Type: ApplicationFiled: September 28, 2015Publication date: April 21, 2016Applicant: NHK SPRING CO., LTD.Inventors: Yukie YAMADA, Takumi KARASAWA
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Patent number: 9318135Abstract: An method of manufacturing a piezoelectric element easily and surely forms polymer coatings on peripheral end faces of the piezoelectric element without deteriorating a yield of the piezoelectric element. The method includes steps of cutting a piezoelectric element out from a base piezoelectric material plate so that peripheral end faces are formed to define a peripheral shape of the piezoelectric element, and forming polymer coatings on at least objective areas of the peripheral end faces of the piezoelectric element by vapor deposition polymerization, respectively.Type: GrantFiled: December 8, 2011Date of Patent: April 19, 2016Assignee: NHK Spring Co., Ltd.Inventor: Akira Nojima
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Patent number: 9308847Abstract: A lumbar support operation member comprising a shaft attachment portion that is configured so as to be fixed to a rotation shaft that transmits rotation force to a moving mechanism of a lumbar support provided to a seatback and that is positioned at a side portion of the seatback; and operation portions that are provided at an radial direction outside of the shaft attachment portion, that are separated from each other in a circumferential direction of the shaft attachment portion, and that make the shaft attachment portion rotate.Type: GrantFiled: June 24, 2013Date of Patent: April 12, 2016Assignee: NHK SPRING CO., LTD.Inventors: Shinji Arakawa, Akihiro Hayashi, Hiroshi Tsunashima, Kozo Yamaura
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Patent number: 9295888Abstract: A shaft for a golf club is capable of hitting a higher ball and reducing a spin on the ball. The shaft has a distal part that is provided with a clubhead, a proximal part that is provided with a grip, an intermediate part arranged between the distal and proximal parts, and a thick part set to thicken a wall thickness of the intermediate part relative to the distal part, a reinforcing part set at the intermediate part, or a combination of the thick part and the reinforcing part. With this, the shaft improves a rigidity at the intermediate part so that a change in rigidity between the distal part and the intermediate part has an inflection point.Type: GrantFiled: March 14, 2013Date of Patent: March 29, 2016Assignee: NHK Spring Co., Ltd.Inventors: Kosuke Fujiwara, Naruki Yatsuda
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Patent number: 9296070Abstract: A method manufactures a head suspension by laser-welding the flexure to the load beam at a first welding spot so that a tongue is pressed against a convex portion under predetermined load. The method includes step of forming, before joining the flexure and load beam together, at least one positioning reference hole in each of the flexure and load beam within a circular range that is defined around the first welding spot with a radius equal to a distance between the first welding spot and the projection, laying the flexure and load beam one on another, inserting reference pin into the reference holes, and laser-welding the flexure and load beam to each other at the first welding spot.Type: GrantFiled: October 18, 2012Date of Patent: March 29, 2016Assignee: NHK Spring Co., Ltd.Inventors: Akihiro Takei, Naoki Tanaka
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Patent number: 9296325Abstract: A vehicle USB port including: a base body attached to a vehicle-body-side member; a hook main body that is provided with a hinge portion rotatably attached to the base body and a hook portion to anchor an anchored member, and that is rotatable between an in-use position in which the hook portion is usable and a stowed position in which the hook portion is not used; a hook main body retaining portion that is formed at the base body and that retains the hook main body moved to the stowed position; a port opening that is formed at the hook main body retaining portion and that is covered by the hook main body moved to the stowed position; and a USB port that is provided in a position facing the port opening, and to which a USB cable can be coupled through the port opening.Type: GrantFiled: February 11, 2015Date of Patent: March 29, 2016Assignee: NHK SPRING CO., LTD.Inventors: Donghyoun Kim, Hidemi Haga, Takeshi Muto
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Patent number: 9298036Abstract: In an identification medium, switching of images can be clearly observed, and the medium has a structure produced at low cost. The structure comprises a cholesteric liquid crystal layer 102 in which a hologram is formed, and which selectively reflects circularly polarized light of a specific rotating direction of a specific central wavelength, a cholesteric liquid crystal layer reflecting the entire range of visible light 105 which has reflection characteristics equivalent to a case of reflecting the entire range of visible light and which reflects circularly polarized light of the same rotating direction as the circularly polarized light reflected from the cholesteric liquid crystal layer 102, and a display pattern 106 having a specific content displayed, arranged in this order, as seen from the side of observation.Type: GrantFiled: March 8, 2012Date of Patent: March 29, 2016Assignee: NHK SPRING CO., LTD.Inventors: Hidekazu Hoshino, Itsuo Takeuchi, Seiya Shibuya, Tooru Ida
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Patent number: 9291645Abstract: A probe unit includes: contact probes; and a probe holder, each of the contact probe including a plunger and a spring coil, each of the plunger including: a contact portion contacting an electrode of a contacted body; a flange portion extending from a base end of the contact portion and having a diameter larger than a diameter of the contact portion; a boss portion extending from an end of the flange portion different from an end continuing to the contact portion and having a diameter smaller than the diameter of the flange portion; and a base end portion extending from an end of the boss portion different from an end continuing to the flange portion and having a substantially same diameter with the boss portion.Type: GrantFiled: October 4, 2012Date of Patent: March 22, 2016Assignee: NHK Spring Co., Ltd.Inventors: Akihiro Matsui, Takashi Mori
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Patent number: 9285004Abstract: A silencer for a leaf spring assembly. The silencer is disposed between end portions of leaf springs. The silencer has a two-layer structure which has a fixing layer and a sliding layer which are integrally formed. The fixing layer has a projection portion, and the projection portion has an engagement portion at a leading end portion thereof. The fixing layer, which is fixed at the fixing side leaf spring, has a tensile strength higher than the sliding layer. The sliding layer, which abuts the sliding side leaf spring, has a hardness lower than the fixing layer. The projection portion of the fixing layer can have sufficient strength to resist the shearing force. In the sliding layer, undesirable noise generation is difficult, and even when a load transmission portion of an end portion of the sliding side leaf spring partially abuts the sliding layer, undesirable noise generation can be prevented.Type: GrantFiled: July 4, 2011Date of Patent: March 15, 2016Assignee: NHK SPRING CO., LTD.Inventors: Junichi Yano, Naoshi Sato, Noritoshi Sakaide
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Publication number: 20160071533Abstract: An interleave circuit includes a metal base, an insulating layer, a first conductor member having first branch conductors, a second conductor member having second branch conductors, and a jumper conductor, which is a part of the metal base. The jumper conductor includes a branch-side metal portion, a pad-side metal portion, and a bridge portion. The bridge portion is formed between the branch-side metal portion and the pad-side metal portion. The branch-side metal portion electrically conducts to connecting terminals of the first branch conductors via branch-side connecting members. The pad-side metal portion electrically conducts to an electrode pad via a pad-side connecting member. The bridge portion includes a crossover portion which crosses over a third conductor member.Type: ApplicationFiled: August 26, 2015Publication date: March 10, 2016Applicant: NHK SPRING CO., LTD.Inventor: Sei KAWAO
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Patent number: 9278387Abstract: A method for producing a leaf spring having a leaf portion and an eye portion formed at the leaf portion including: forming a gap between a leading end of the eye and a facing surface facing the leading end, and shot peening an inner surface of the eye via a reflection member, wherein, at a cross section perpendicular to an axial direction of the eye portion, the leading end of the eye faces the facing surface so a straight line does not cross the leading end of the eye, the straight line connecting an intersection point and a center point of a reflection member surface, the intersection point being the intersection of a line perpendicular to the facing surface extending through an endpoint of the leaf side of the leading end of the eye to the surface.Type: GrantFiled: May 12, 2011Date of Patent: March 8, 2016Assignee: NHK SPRING CO., LTD.Inventors: Akira Tange, Kiyoshi Kurimoto, Yurika Goto, Iwao Shigeoka, Tadakazu Kato, Shinichi Inoguchi
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Patent number: 9278602Abstract: The inner peripheral side radial direction surface of the fixing portion of the dust cover is abutted to the outer peripheral side radial direction surface of the flange portion of the ball seat, and the end portion of the fixing portion is abutted to the side surface of the outer peripheral side of the ball seat. The outer peripheral side radial direction surface of the fixing portion is pressed toward the flange portion by the radial direction surface pressing portion of the die member, and the fixing portion of the dust cover is held by the radial direction surface pressing portion of the die member and the flange portion. The pressing by the radial direction surface pressing portion is appropriately performed to withstand an injection molding pressure of the resin injection.Type: GrantFiled: July 4, 2011Date of Patent: March 8, 2016Assignee: NHK SPRING CO., LTD.Inventor: Shigeru Kuroda
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Patent number: 9278603Abstract: A semimanufactured product of a stopper includes: a plate-shaped bridging portion; a first curved portion extending from one end portion of the bridging portion integrally; and a second curved portion extending from the other end portion of the bridging portion integrally, and an entirety of the semimanufactured product is formed in a C-shape. The first curved portion includes a first locking part at the end portion. The second curved portion includes a second locking part that engages with the first locking part at the end portion. The first locking part includes a convex-shaped convex portion and a pair of receiving portions positioned so as to sandwich the convex portion. The second locking part includes: a concave-shaped concave portion which can accommodate the convex portion; and a pair of projecting portions positioned so as to sandwich the concave portion.Type: GrantFiled: September 3, 2013Date of Patent: March 8, 2016Assignees: NHK SPRING CO., LTD., NHK SPRING PRODUCTION COMPANYInventors: Toshiharu Yoshizawa, Juichi Sugita
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Publication number: 20160065015Abstract: A magnet plate used for a rotor core of a motor, includes a magnetic pole portion being set between an outer peripheral edge of a body portion and a magnet slot and having a radial width being smaller than a radial sectional width of the permanent magnet, and a higher hardness portion being formed into a hook shape along an end corner of the magnet slot and have a smaller width than the radial sectional width of the permanent magnet.Type: ApplicationFiled: April 15, 2014Publication date: March 3, 2016Applicant: NHK Spring Co., Ltd.Inventors: Yohei KAMEDA, Kazuo IWATA, Yuji ARAOKA, Yoshiki ONO
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Patent number: 9273372Abstract: Provided are a method for manufacturing a stabilizer and a heating device, the method being able to suppress the occurrence of unevenness in the hardness of a curved portion of a semimanufactured product of the stabilizer and reduce the process time in a tempering process. In electric heating in a first heating step (step A), the temperature of an inside portion of a shoulder can be steeply increased to a temperature (<UA) close to a target temperature (UA) by continuously passing an electric current. In electric heating in a second heating step (step C), the temperature difference between the maximum achieved temperature of the inside portion of the shoulder and the maximum achieved temperature of an outside portion thereof can be decreased by intermittently passing an electric current, thereby making it possible to set the maximum achieved temperatures to a desired target temperature (UA) or a temperature close thereto.Type: GrantFiled: August 1, 2013Date of Patent: March 1, 2016Assignee: NHK SPRING CO., LTD.Inventors: Yoshihiro Koshita, Yutaka Wakabayashi, Kosuke Takeo, Koichi Ito
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Patent number: 9276441Abstract: A stator core comprises a circumferentially deformable part formed on a radially outer peripheral side of a yoke; circumferentially facing divided parts formed on a radially inner peripheral side of the yoke, each having a dividing line that is oriented in a radial direction and reaches a portion between teeth and divided surfaces that face each other without a gap; and radially facing divided parts formed at the center between the radially inner and outer sides of the yoke along the circumferential direction at the predetermined interval, and each having divided surfaces that face each other in the radial direction, and being continuous at one ends with the respective circumferentially facing divided parts. The circumferentially facing divided parts each have a compressive stress being smaller than a compressive stress acting on the circumferentially deformable part or being zero.Type: GrantFiled: September 27, 2011Date of Patent: March 1, 2016Assignee: NHK Spring Co., Ltd.Inventors: Kazuo Iwata, Yoshinobu Mino
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Patent number: 9270043Abstract: A connector includes: a first terminal that is electrically conductive and includes a first contact portion being plate shaped and including a first teeth portion with one of surfaces thereof forming a plurality of continuous concavo-convex shapes, and a first base portion joined to the first contact portion and connected to one of connection targets; and a second terminal that is electrically conductive and includes a second contact portion including a second teeth portion with one of surfaces thereof forming a plurality of continuous concavo-convex shapes, the second teeth portion being engageable with the first teeth portion, and a second base portion that is joined to the second contact portion and connected to the other one of the connection targets, wherein the first terminal and the second terminal are electrically connected to each other by engagement between the first teeth portion and the second teeth portion.Type: GrantFiled: March 14, 2013Date of Patent: February 23, 2016Assignee: NHK Spring Co., Ltd.Inventors: Takao Kobayashi, Michiya Masuda
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Patent number: 9267589Abstract: The present invention obtains a multi-shaft drive device that can protect a rack and pinion from operative load input to a selector. The multi-shaft drive device is provided with: an input-side bevel gear (52) to which motor power is transmitted; and an output-side bevel gear (34) that transmits the power transmitted from the input-side bevel gear (52) to a movable mechanism. The multi-shaft drive device is further provided with: a selector (10) that connects/disconnects the meshing of the output-side bevel gear (34) and the input-side bevel gear (52); and a rotating shaft (16) that causes the selector (10) to slide via a rack (18) and pinion (17). Furthermore, the angle of rotation of the rotating shaft (16) is regulated by the end of the pinion (17) contacting a vertical wall (1A) of a case (1).Type: GrantFiled: January 24, 2012Date of Patent: February 23, 2016Assignee: NHK SPRING CO., LTD.Inventors: Ryohei Shigematsu, Takafumi Hirata, Shinji Iino, Soichi Nakayama, Takeshi Nakamura, Masahiro Oda, Kenichi Katsube
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Publication number: 20160046164Abstract: A suspension coil spring includes a lower end turn portion, an upper end turn portion, and a helical effective portion formed between the end turn portions. The lower end turn portion includes a first portion which contacts a lower spring seat irrespective of a load, and a second portion which contacts the lower spring seat or is separated from the same according to the load. The wire diameter of the second portion is greater than that of the first portion and an average wire diameter of the effective portion. The upper end turn portion includes a third portion which contacts an upper spring seat, and a fourth portion. The wire diameter of the fourth portion is greater that of the third portion and the average wire diameter of the effective portion.Type: ApplicationFiled: October 27, 2015Publication date: February 18, 2016Applicant: NHK SPRING CO., LTD.Inventors: Kenji YAMAMOTOYA, Hideto ENOMOTO, Ken TAKAHASHI, Toshiaki SATO, Mitsuhiro SUGIYAMA, Yoshio KOBAYASHI, Taichi INAGE, Tomotake KATO, Akihiko NISHIKAWA, Masahiro UMEZAWA, Michihiko AYADA, Suguru KAJIGAYA