Rotational positioning apparatus
First Claim
1. A rotational positioning apparatus, comprising:
- a fixed member having a first wear portion and a stopper portion;
at least a positioning washer disposed on the first wear portion of the fixed member, wherein the positioning washer is formed with a positioning portion abutting against the stopper portion of the fixed member and at least a protruding portion extending radially outward; and
a rotating member having a second wear portion engaged with the positioning washer and a push portion for pushing the protruding portion of the positioning washer, so that the push portion drives rotation of the positioning washer and the positioning portion is stopped by the stopper portion to achieve positioning during the rotation.
1 Assignment
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Accused Products
Abstract
A rotational positioning apparatus includes a fixed member having a first wear portion and a stopper portion; at least a positioning washer disposed on the first wear portion, the positioning washer is formed with a positioning portion to abut against the stopper portion and at least a protruding portion radially extending outward; and a rotating member having a second wear portion engaged with the positioning washer, and a push portion for pushing the protruding portion of the positioning washer. With the relative locations for the stopper portion, positioning portion, protruding portion, and pushing portion, a relative rotation track between the fixed member and the positioning washer is summed with a relative rotation track between the rotating member and the positioning washer to flexibly design a rotational angle for the rotational positioning apparatus and ensure that the rotating member is firmly positioned at a desired location.
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Citations
20 Claims
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1. A rotational positioning apparatus, comprising:
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a fixed member having a first wear portion and a stopper portion;
at least a positioning washer disposed on the first wear portion of the fixed member, wherein the positioning washer is formed with a positioning portion abutting against the stopper portion of the fixed member and at least a protruding portion extending radially outward; and
a rotating member having a second wear portion engaged with the positioning washer and a push portion for pushing the protruding portion of the positioning washer, so that the push portion drives rotation of the positioning washer and the positioning portion is stopped by the stopper portion to achieve positioning during the rotation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification