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1. 发明专利

JP2011050636A Buckle device and method of manufacturing rotary body 审中-公开
标题翻译：制动装置和制造旋转体的方法
公开(公告)号：JP2011050636A
公开(公告)日：2011-03-17
申请号：JP2009203678
申请日：2009-09-03
申请人： Tokai Rika Co Ltd , 株式会社東海理化電機製作所
发明人： NAGAO MASAHITO , MARUYAMA TAKAYUKI , YAMAMOTO RYUTARO
IPC分类号： A44B11/25
摘要： PROBLEM TO BE SOLVED: To obtain a buckle device capable of configuring a lock with a few number of components, and to obtain a method of manufacturing a rotary body by which a rotary body such as the lock member can be confgured with a few number of components and the mechanical strength in a shaft can be sufficiently enhanced.
SOLUTION: In the lock member 150 constituting the buckle device 10, the shaft 154 is cut from an intermediate molded article that is formed through withdrawing and extruding. As a result, the lock member body 152 or the lock part 160 and the shaft 154 are structured in one component. In addition, the hardness of the intermediate molded article of the lock member 150 is increased by the hardening through the withdrawing and the extruding described as above. This also increases the hardness of the shaft 154 that is formed by cutting of this intermediate molded article; thus, the mechanical strength of the shaft 154 can be enhanced.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了获得能够构造具有少量部件的锁定的带扣装置，并且获得制造旋转体的方法，通过该方法可以使诸如锁定构件的旋转体与部件数量少，轴内的机械强度得以充分提高。解决方案：在构成带扣装置10的锁定构件150中，从通过抽出和挤出形成的中间模制品切割轴154。结果，锁定构件主体152或锁定部160以及轴154构成为一个部件。此外，通过如上所述的抽出和挤出的硬化，锁定构件150的中间模制品的硬度增加。这也增加了通过切割该中间模制品形成的轴154的硬度; 因此，能够提高轴154的机械强度。版权所有（C）2011，JPO＆INPIT

2. 发明专利

JP2000176590A TORSIONAL STRESS ABSORBING SHAFT FOR SEAT BELT DEVICE, AND ITS MANUFACTURE 失效
公开(公告)号：JP2000176590A
公开(公告)日：2000-06-27
申请号：JP35038898
申请日：1998-12-09
申请人： TOKAI RIKA CO LTD
发明人： HATTORI ICHIRO , MARUYAMA TAKAYUKI , UKAI KAZUTAKA , AOKI MICHIO , SAKAGUCHI YOSHIHIDE , ABE MINORU
IPC分类号： B60R22/28 , B21J5/08 , B21K1/06 , B21K1/52 , F16C11/04
摘要： PROBLEM TO BE SOLVED: To provide a torsional stress absorbing shaft for a seat belt device which is capable of reducing the webbing drawing force step by step with a simple constitution. SOLUTION: (A) A torsion bar 24 is formed of three layers. When the torsional stress is loaded in the torsion bar 24, and reaches the yield point (P1), the torsional angle is increased, and (B) an outer layer 40 is fractured. Thus, the torsional stress is reduced approximately to the yield point (P2) of an intermediate layer 42 and an inner layer 44, and when the reduced torsional stress is loaded, the torsional angle is further increased. When the intermediate layer 42 is fractured (C), the torsional stress is reduced approximately to the yield point (P3) of the inner layer 44. By forming a multi-layered structure and fracturing it by layer, the force to be applied to the webbing can be reduced step by step, and the reaction on an occupant from the webbing is reduced thereby.

3. 发明专利

JPH10258702A WEBBING TAKE-UP DEVICE 失效
公开(公告)号：JPH10258702A
公开(公告)日：1998-09-29
申请号：JP30429597
申请日：1997-11-06
申请人： TOKAI RIKA CO LTD
发明人： ABE MINORU , HAYASHI YOSHIHIRO , AOKI MICHIO , SAKAGUCHI YOSHIHIDE , HATTORI ICHIRO , MARUYAMA TAKAYUKI
IPC分类号： B60R22/28 , B60R22/34
摘要： PROBLEM TO BE SOLVED: To provide a webbing take-up device that is able to convert the deformative force of an energy absorbing member in time of a webbing drawing motion, into the specified one. SOLUTION: A spool 64 for winding a seat belt webbing 66 is rotatably supported on two leg pieces 60 and 62. Likewise, a turning member 72 is rotatably supported on these leg pieces 60 and 62 so as to make it come to be relatively rotatable with the spool 64. An energy absorbing member 114 set up in space between the spool 64 and these leg pieces 60, 62 is plastically deformed by what the spool 64 and the leg pieces 60, 62 are relatively rotated, whereby it makes the webbing 66 rolled on the spool 64 so as to be drawable as absorbing the energy. In addition, a control constituent part altering and adjusting the deformative force is installed in a specified part of the energy absorbing member 114, making a transition in this deformative force controllable so as to make it come to the required pattern.

4. 发明专利

JPH11347683A LONG SHAFT, MANUFACTURE OF LONG SHAFT AND DEVICE FOR MANUFACTURING LONG SHAFT 失效
公开(公告)号：JPH11347683A
公开(公告)日：1999-12-21
申请号：JP16101898
申请日：1998-06-09
申请人： TOKAI RIKA CO LTD
发明人： HATTORI ICHIRO , UKAI KAZUTAKA , MARUYAMA TAKAYUKI , AOKI MICHIO , SAKAGUCHI YOSHIHIDE
IPC分类号： B60R22/34 , B21J5/02 , B21J5/08 , B21K1/06 , B21K1/52 , F16C3/02
摘要： PROBLEM TO BE SOLVED: To obtain a long shaft having a small radius at the corner parts of deformed parts at both ends in the axial direction and fixed mechanical strength at the center part, a manufacturing method of the long shaft which can manufacture this long shaft in a short time and with small labor and time, and a manufacturing device of the long shaft. SOLUTION: A work is set to a housing part in an upsetting die 12 and compressed in the axial direction from one end side with an upsetting rod 22 to form a wide cross sectional columnar part at the one end of the work. Successively, the work is set to a pointing die 28 and a pointing punch 34 is abutted on it to form a pointing part. Successively, the work is set to a trimming die 38 and a trimming punch 40 is abutted on it to form a hexagonal columnar part. Successively, the work is set to an upsetting die 52 and a pushing rod 68 is abutted on it to form the wide cross sectional columnar part. Successively, the work is set to a trimming punch 72 and the trimming punch 72 is shifted toward a trimming die to form the hexagonal columnar part.

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