Patent ID: 7083136
Filing Date: 2006-08-01
Classification: B60R

Abstract:
1. A webbing refractor for an elongated webbing belt used for application to a body of a vehicle occupant, the webbing retractor comprising: a take-up shaft for taking the webbing belt up around itself, the take-up shaft being rotatably held, and to which one end of the webbing belt is anchored; an input gear connected to the take-up shaft, a plurality of teeth being formed along a periphery of the input gear at uniform intervals at a given pitch; a prime mover rotating body receiving driving force from a drive source, and rotating; and a plurality of connecting members mounted at uniform angular distances around said input gear for transmitting rotation of the prime mover rotating body to the input gear, said plurality of connecting members rotating around the input gear interlockingly with the rotation of the prime mover rotating body, and each of which has a meshing portion that is capable of contacting and moving away from the input gear, and in a state in which at least one meshing portion contacts the input gear so as to engage with any of the teeth of the input gear, the rotation of the prime mover rotating body is transmitted to the input gear, wherein, in a state in which at least two of said uniformly angularly spaced connecting members contact the input gear, a distance, along a direction of rotation of the input gear, between two meshing portions of the at least two connecting members is not an integer multiple of said given pitch of the plurality of teeth such that one of said at least two connecting members meshes with one of said plurality of teeth, and further comprising a rotating disc body which is held so as to be coaxial with the prime mover rotating body and so as to be able to rotate relative to the prime mover rotating body, and the rotating disc body has a mechanism which, when the prime mover rotating body is driven and rotated at greater than a predetermined speed, rotates relative to the prime mover rotating body and rotates the plurality of connecting members in a direction of contacting the input gear.