Angle adjusting device
AssigneeKoyo Giken Inc.
InventorsYoshinobu Yamashita, Tadanobu Yamashita
Life of this patent
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Abstract
A ratchet gear is provided to each of a pair of arms (rotors), which are coupled through a bolt, at counter surfaces of a pair of their respective rotary portions opposing in an axial direction of the bolt serving as an axis of relative rotation, and each ratchet gear is provided with a plurality of gear teeth, while both the arms are pushed in their opposing direction by a spring, so that a relative rotating position of the arms is adjusted step by step per an angle set in accordance with the gear teeth, whereby it is possible to provide a rigid angle adjusting device that can be assembled at a low cost without increasing the size.
Claims17
An angle adjusting device capable of adjusting a relative rotating position of a pair of rotors coupled through an axis of rotation step by step, comprising:
- a pair of rotors;
- a plurality of engaging portions provided on opposing surfaces of the pair of rotors opposing in a direction along the axis of rotation;
- a spring for pushing the pair of rotors in an opposing direction;
- a releasing body placed concentrically between the pair of rotors, wherein the releasing body allows engagement between the pair of rotors when placed at a first rotating position with respect to either one of the pair of rotors, and releases the engagement by moving the pair of rotors apart from each other when placed at a second rotating position
- wherein:
- the releasing body is provided with two contact portions spaced apart in a direction of a relative rotation with respect to the other rotor;
- and
- the other rotor is provided with a moving portion that moves between the two contact portions in association with a relative rotation with respect to the releasing body,
- the moving portion allowing the releasing body to rotate to the first and second rotating positions with respect to the either one of the rotors by touching the two contact portions, respectively.
An angle adjusting device capable of adjusting a relative rotating position of a pair of rotors coupled through an axis of rotation step by step, comprising:
- a pair of rotors;
- a plurality of engaging portions provided on opposing surfaces of the pair of rotors opposing in a direction along the axis of rotation;
- and
- a spring for pushing the pair of rotors in an opposing direction,
- wherein at least one of the pair of rotors and the plurality of engaging portions are formed out of synthetic resin as one body.
Dependencies are inferred from the claim text.