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1. 发明专利

JP2000309250A PRETENSIONER 失效
公开(公告)号：JP2000309250A
公开(公告)日：2000-11-07
申请号：JP11756699
申请日：1999-04-26
申请人： TAKATA CORP
发明人： MIZUNO ISAMU , TAKEHARA HIROKI , KAMEYOSHI HIKARI
IPC分类号： B60R22/46
摘要： PROBLEM TO BE SOLVED: To generate rotation torque reliably by a retractor shaft of a seat belt. SOLUTION: In this pretensioner, a pipe 21 is fit in an external swirl groove 14A engraved on a base 11. An internal swirl groove 14B is used as a rail groove where a piston 20 runs. In the upper portion of the base 11, a recessed area 14D communicating with the inside of the rail groove 14B is engraved to form side edge surface 14E. A layer 31 is mounted on a belt retractor shaft 13 through a clutch 32. The lever 31 consists of a base portion 31b fixed to a fixing part 30 and a tip portion 31a which can be engaged to or detached from this vase portion 31b. The tip portion 31a of the lever 31 is designed to contact the side edge surface 14E when the lever 31 rotates to reach the recessed area 14D of the base 11.

2. 发明专利

JP2000203384A PRETENSIONER 失效
公开(公告)号：JP2000203384A
公开(公告)日：2000-07-25
申请号：JP510699
申请日：1999-01-12
申请人： TAKATA CORP
发明人： MIZUNO ISAMU , KAMEYOSHI HIKARI , TAKEHARA HIROKI , TANJI HIROMASA
IPC分类号： B60R22/46
摘要： PROBLEM TO BE SOLVED: To provide a pretensioner cheap in manufacturing cost and realizing a compact structure. SOLUTION: A winding shaft 3 fixed on a reel is penetrated into the inside of a pretensioner 1. A sleeve 25 is attached on the winding shaft 3. The inner end part 36a of a strip 36 is inserted and fixed to a groove 25a of the sleeve 25. The closer part to the inner end part of the strip 36 is wound several times around the outer circumference of the sleeve 25. An egg-shaped piston 23 is mounted on the outer end part of the strip 36. On the other hand, a gas generator 15 is provided in a pressure vessel 13. The pressure vessel 13 is communicated with a steel hollow pipe 17. The pipe 17 is curved in U shape and its inside serves as a passage for moving of the piston 23.

3. 发明专利

JP2000198415A PRE-TENSIONER 失效
公开(公告)号：JP2000198415A
公开(公告)日：2000-07-18
申请号：JP156899
申请日：1999-01-07
申请人： TAKATA CORP
发明人： MIZUNO ISAMU , KOSUGI NORIYUKI , KAMEYOSHI HIKARI , TAKEHARA HIROKI , TANJI HIROMASA
IPC分类号： B60R22/46
摘要： PROBLEM TO BE SOLVED: To provide a pre-tensioner which is capable of easily sealing a gas, realizing a compact gas pressure-proof vessel, and smoothly and efficiently rotating a winding shaft of a seat belt. SOLUTION: A pressure vessel 13 is fitted to a casing 11 of a pre-tensioner 1. A gas generator 15 is equipped on a right end opening part 13a of the pressure vessel 13. A tubular inner cylinder 17 is connected to a left end opening part 13b of the pressure vessel 13. The inner cylinder 17 is formed of a material which is soft and low in friction such as silicone rubber. The inner cylinder 17 is connected to the pressure vessel 13 on the right end side in a straight form, while its opposite side is a spiral part 17a which is spirally bent. An end part of the inner cylinder 17 is inserted in a bent condition due to its softness along a spiral passage 20d formed inside an outer cylinder 20.

4. 发明专利

JP2000238611A TENSION REDUCER IN SEAT BELT RETRACTOR 失效
公开(公告)号：JP2000238611A
公开(公告)日：2000-09-05
申请号：JP4451399
申请日：1999-02-23
申请人： TAKATA CORP
发明人： TANJI HIROMASA , MIZUNO ISAMU
IPC分类号： B60R22/44
摘要： PROBLEM TO BE SOLVED: To simplify and compactify structure, and to facilitate moving of an occupant in a condition fastened with a seat belt. SOLUTION: A reducer shaft 8 is moved vertically by a switch lever 11 when the lever 11 is set in an upper limit position, an internal tooth 8a thereof is meshed with an external tooth 7a of a bush shaft 7 connected to a reel, an external tooth 8b thereof is separated from an internal tooth 11b of the lever 11 to be freely rotatable, and spring force of the second spring connected to the reducer shaft 8 is applied to the reel. When the lever 11 is set in the upper position, the internal tooth 11b of the lever 11 is meshed with the external tooth 8b of the shaft 8 to make rotation of the reducer shaft 8 incapable, the shaft 8 is moved downward by the lever 11 to separate the internal tooth 8a from the external tooth 7a of the bush shaft 7, and the spring force of the second spring is not applied to the reel.

5. 发明专利

JP2000142322A SEAT BELT WINDING DEVICE 失效
公开(公告)号：JP2000142322A
公开(公告)日：2000-05-23
申请号：JP520699
申请日：1999-01-12
申请人： TAKATA CORP
发明人： SHIOTANI MASAHIRO , KOSUGI NORIYUKI , MIZUNO ISAMU , TANJI HIROMASA
IPC分类号： B60R22/44 , B60R22/48
摘要： PROBLEM TO BE SOLVED: To make assemblage excellent and to make webbing pull-out force almost constant even in case of the webbing pull-out quantity being increased. SOLUTION: A first reel 20 of drum shape wound with a rope 25 with one end fastened into a specified position of the first reel 20 is coaxially connected to a rotating shaft 5 of a reel shaft 2 for winding a webbing W, so as not to be relatively rotated. A second reel 30 arranged at the side with a space with its rotating shaft parallel with the rotaing shaft of the first reel 20 is provided with a small diameter reel part 34, a large diameter reel part 32 and a transition part 35 communicating the small diameter reel part 34 with the large diameter reel part 32. The rope 25 stretched over from the first reel 20 is wound around a rectangular groove 33 of the large diameter reel part 32 via the small diameter reel part 34 and the transition part 35 of the second reel 30.

6. 发明专利

JP2001191899A SEAT BELT WINDING DEVICE 失效
公开(公告)号：JP2001191899A
公开(公告)日：2001-07-17
申请号：JP2000002328
申请日：2000-01-11
申请人： TAKATA CORP
发明人： SHIOTANI MASAHIRO , MIZUNO ISAMU , TANJI HIROMASA
IPC分类号： B60R22/38 , B60R22/44
摘要： PROBLEM TO BE SOLVED: To improve an assembling property and make webbing pull-out force almost constant even in case of the webbing pull-out quantity being increased. SOLUTION: This seat belt winding device is provided with a first reel 20, a second reel 30 and an energizing force imparting means 40. The first reel 20 is connected coaxially to a rotation axis of a reel shaft 2. The second reel part 30 has a small diameter reel part 34, a large diameter reel part 32 and a transition part 35 communicating the small diameter reel part 34 with the large diameter reel part 32. A cord body extended from the first reel 34 is wound onto the large diameter reel part 32 via the small diameter reel part 34 and the transition part 35 in the state of being changed in its travel direction by a direction changing member, and the second reel 3a is rotated in a direction of unwinding the cord body when the first reel 20 wound with the cord body is rotated by pulling out the webbing, to wind the cord body onto the first reel 20. The energizing force imparting means 40 is accommodated in the second reel 30 to impart rotation energizing force in a direction of winding the webbing W against the rotation of the second reel 30. At this time, the rotating speed ratio between the first reel 20 and the second reel 30 is made different to reduce the pull-out force of the webbing W according to the pull-out quantity of the webbing W.

7. 发明专利

JP2001151077A PRETENSIONER 失效
公开(公告)号：JP2001151077A
公开(公告)日：2001-06-05
申请号：JP37251899
申请日：1999-12-28
申请人： TAKATA CORP
发明人： MIZUNO ISAMU , KAMEYOSHI HIKARI , TSUJI SHIGEAKI , NISHIZAWA MUNEO , HAMAGAMI TETSUYA , TAKEHARA HIROKI , MISHINA SHOJI , KANAMORI YASUSHI , SHIOTANI MASAHIRO
IPC分类号： B60R22/46 , B60R22/28 , B60R22/44
摘要： PROBLEM TO BE SOLVED: To provide a pretensioner that can use the ignition pressure of its gas generator with efficiency or have a compact and light overall structure. SOLUTION: The pretensioner 10 is fixed via its base 41 on the external surface of a sidewall 50 of a frame 2. Through the base 41, a hexagonal prism shaft portion 4d of a reel 4 is passed. The hexagonal prism shaft portion 4d carries a pinion 23 fixed to the periphery. The pinion 23 has uniform external teeth 24 over the periphery. About the pinion 23, a ring gear 30 is disposed. The ring gear 30 has on the internal surface internal teeth 31 adapted to mesh with the external teeth 24 of the pinion 23, and on the external surface a plurality of spaced projecting levers 32 and 33 protruding outwardly. The lever 32 of the ring gear 30 is placed in substantial contact with a leading ball 20-15 in a pipe 21.

8. 发明专利

JP2001055115A ROTARY COUPLING DEVICE AND SEAT BELT RETRACTOR USING THEREOF 失效
公开(公告)号：JP2001055115A
公开(公告)日：2001-02-27
申请号：JP23374099
申请日：1999-08-20
申请人： TAKATA CORP
发明人： SHIOTANI MASAHIRO , MIZUNO ISAMU , TANJI HIROMASA
IPC分类号： B60R22/44 , B60R22/28 , F16H25/04
摘要： PROBLEM TO BE SOLVED: To shorten the length in an axial direction and various settings of a rotation amount of a driving side member until it is coupled to a driven side member. SOLUTION: When a reel 4 relatively rotates in a belt drawing out direction in respect to a locking base 15, a rotation amount memory 24 is wound by a cylindrical shaft part of the locking base 15. When the reel 4 rotates a set rotation amount, the rotation amount memory 24 rotates a stopper 22 around a support pin in the same direction via a protruding pin. When a locking base abutting end is in a position capable of abutting to a locking pawl and the reel 4 relatively rotates further, the locking base abutting end abuts to the locking pawl and a rotation of the stopper 22 is blocked. Furthermore, a relative rotation occurs between the reel 4 and the stopper 22 due a rotation of only the reel 4 in the same direction, a reel abutting end abuts to an end of a recessed part, and the reel 4 and the locking base 15 are rotatively coupled.

9. 发明专利

JP2000313310A ROTARY COUPLING DEVICE AND SEAT BELT RETRACTOR UTILIZING IT 失效
公开(公告)号：JP2000313310A
公开(公告)日：2000-11-14
申请号：JP12244699
申请日：1999-04-28
申请人： TAKATA CORP
发明人： SHIOTANI MASAHIRO , MIZUNO ISAMU , MISHINA SHOJI , TANJI HIROMASA
IPC分类号： B60R22/44 , F16H25/04
摘要： PROBLEM TO BE SOLVED: To reduce a length in an axial direction and to variously set an amount of rotation of a driving member until the driving member couples to a driven member. SOLUTION: When a spool ring 24 is rotated relative to a locking ring 14 in α direction, a locking projection 24e engages with a locking projection 23d, resulting in integral rotation of the ring 24 and a stopper ring 23. After a predetermined amount of rotation, the locking projection 23d is removed from engagement with the locking projection 24e by an eccentric cam 14b, then only the ring 24 rotates, while the ring 23 stops. The rotation of the ring 24 causes engagement of the locking projections 24e with 23e, thereby, the both rings 24 and 23 integrally rotate again. A predetermined amount of rotation disengages the locking projections 23e from 24e, and only the ring 24 rotates. The re-engagement of the locking projection 24e with an locking projection 23f causes the integral rotation of the rings 24 and 23. Consequently, the locking projection 23f is clamped between the eccentric cam 14b and a flange 24b of the ring 24, resulting in an integral rotary coupling of the rings 24 and 14.

10. 发明专利

JP2000225920A PRETENSIONER 失效
公开(公告)号：JP2000225920A
公开(公告)日：2000-08-15
申请号：JP2476299
申请日：1999-02-02
申请人： TAKATA CORP
发明人： KOSUGI NORIYUKI , MIZUNO ISAMU , TAKEHARA HIROKI , KAMEYOSHI HIKARI , TANJI HIROMASA
IPC分类号： B60R22/46
摘要： PROBLEM TO BE SOLVED: To provide a pretensioner which can wind a seat belt accurately by generating a rotating torque certainly in a winding shaft of the seat belt. SOLUTION: A circular recessed part 11a is put on within a casing 11. A winding shaft 13 fixed on a reel is pierced in the recessed part 11a. In the outer periphery of the winding shaft 13, a gear 23 (a first driving member) is fixed. In the outer periphery of the gear 23, an outside gear 25 (a first engaging part) is arranged evenly. Surrounding the gear 23, a rotating ring 30 (a second driving part) is arranged outside. In the inner periphery of the rotating ring 30, an inner gear 33 (a second engaging part) meshable with the gear 23 is formed. A part along the inner periphery of the rotating ring 30 becomes a is cutout part 35 simply cut out. The rotating ring 30 and the gear 23 are interlocked only when the inner gear 33 rotates and meshes with the outside gear 25, and become free when the outside gear 25 is located in the cutout part 35.

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