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US 2003/0116668 A1Published application
Webbing retractor and method of assembling webbing retractor
AssigneeKabushiki Kaisha Tokai Rika Denki Seisakusho
InventorAkira Sumiyashiki
Life of this patent
Estimating the term…
Abstract
In a webbing retractor, a stopper plate is mounted to a belt insert-through hole of a spool. In this mounted state, a restricting wall of the stopper plate extends further outward in a radial direction of a spool main body than an outer peripheral portion of the spool main body. From between a pair of leg plates of a frame, the restricting wall opposes the leg plates along an axial direction of the spool. Thus, when force displacing the spool in the axial direction of the spool is applied, the leg plates interfere with the restricting wall, and indirectly interfere with the spool so as to restrict displacement of the spool.
Claims20
A webbing retractor comprising:
- a take-up shaft on which a proximal end portion of an elongated, strip-shaped webbing belt is anchored, the take-up shaft taking-up the webbing belt from a proximal end side of the webbing belt by rotating in a take-up direction which is one direction around an axial center of the take-up shaft;
- a frame including a pair of leg plates which oppose one another along an axial direction of the take-up shaft, the frame indirectly supporting the take-up shaft at the leg plates;
- and
- a take-up shaft stopper device mounted to one portion of an outer periphery of the take-up shaft from a direction orthogonal to the axial direction of the take-up shaft, and a restricting wall is formed at the take-up shaft stopper device, and in a state in which the take-up shaft stopper device is mounted, the restricting wall extends further than the take-up shaft in the direction orthogonal to the axial direction of the take-up shaft and opposes the leg plates along the axial direction of the take-up shaft.
1 more element
A webbing retractor comprising:
- a take-up shaft on which a proximal end portion of an elongated, strip-shaped webbing belt is anchored, the take-up shaft taking-up the webbing belt from a proximal end side of the webbing belt by rotating in a take-up direction which is one direction around an axial center of the take-up shaft;
- a frame structured so as to include a pair of leg plates which are provided so as to oppose one another along an axial direction of the take-up shaft, an interval between the leg plates being shorter than a dimension between axial direction end portions of the take-up shaft, and a hole is formed in each of the leg plates, and the take-up shaft can be made to pass through the holes, and internal teeth are formed at an inner peripheral portion of at least one of the holes, and the frame indirectly supports the take-up shaft which has been passed through the holes;
- a lock device structured so as to include a lock member which is provided at the take-up shaft so as to be movable in directions of approaching and moving away from inner peripheral portions of the holes formed in the leg plates, and a plurality of external teeth which can engage with the internal teeth are formed at the lock member, and due to the lock member moving so as to approach the inner peripheral portions of the holes, the lock member engages with the internal teeth formed at the inner peripheral portion of the hole and restricts rotation of the take-up shaft in a direction of pulling-out the webbing belt, and the lock device moves the lock member to approach the inner peripheral portions of the holes under a predetermined condition;
- and
- a stopper portion provided at the take-up shaft so as to be movable in directions of approaching and moving away from a restricting position at a side, along a direction in which the leg plates oppose one another, of the leg plate which includes the internal teeth, one of integrally with movement of and interlockingly with movement of the lock member in directions of approaching and moving away from the inner peripheral portions of the holes.
2 more elements
A method of assembling a webbing retractor which is applied to a webbing retractor including:
- a take-up shaft on which a proximal end portion of an elongated, strip-shaped webbing belt is anchored;
- and
- a frame including a pair of leg plates which oppose one another along an axial direction of the take-up shaft, and an interval between the leg plates is smaller than an axial direction dimension of the take-up shaft, and a hole through which the take-up shaft can pass is formed in each of the leg plates, and the frame indirectly shaft-supports the take-up shaft at the pair of leg plates,
- wherein the method of assembling a webbing retractor includes a step of mounting the take-up shaft to the frame, and the step of mounting the take-up shaft to the frame comprises:
- a take-up shaft pass-through step of passing the take-up shaft, from one axial direction end side of the take-up shaft and along the axial direction of the take-up shaft, through the hole formed in one of the leg plates, from a side of the one of the leg plates which side is opposite a side at which another of the leg plates is provided, and passing the take-up shaft, from the one axial direction end side of the take-up shaft, through the hole formed in the other of the leg plates;
- and
- a take-up shaft stopper device mounting step of mounting a take-up shaft stopper device to one portion of an outer periphery of the take-up shaft, between the pair of leg plates and from a direction orthogonal to the axial direction of the take-up shaft, and making a restricting wall, which is formed at the take-up shaft stopper device and extends further toward an outer side in a direction orthogonal to the axial direction of the take-up shaft than the take-up shaft, oppose the leg plates along the axial direction of the take-up shaft.
4 more elements
Dependencies are inferred from the claim text.