Planetary gear type differential apparatus
AssigneeFuji Jukogyo Kabushiki Kaisha
InventorKazuo Kanazawa
Life of this patent
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Abstract
A sliding surface is formed on an inner periphery of a drum member secured to a rear output shaft of a differential limiting device. There is provided a cam member between a projection and the sliding surface. The cam member has a friction surface slidable on the sliding surface and a V-shaped groove engageable with the projection. When a relative rotation occurs between the drum member and the carrier, the position where the projection is engaged with the V-shaped groove deviates so as to press the cam member toward the sliding surface. As a result, due to a frictional resistance of the friction surface against the sliding surface, first a differential limiting occurs between the drum member and the carrier and then a differential is locked up by a wedge effect of a corner edge of the cam member.
Claims16
A planetary gear type differential apparatus provided on a shaft member and having a carrier rotatably mounted on said shaft member, a sun gear secured on said shaft member, a pinion meshing with said sun gear, and a pinion shaft secured to said carrier for rotatably supporting said pinion, comprising:
- a sliding surface provided on said shaft member;
- a projection formed at an end portion of said pinion shaft and projected from an end surface of said carrier;
- and
- a cam member provided between said sliding surface and said projection, said cam member including a friction surface slidable on said sliding surface and a V-shaped groove engageable with said projection.
A planetary gear type differential apparatus provided on a shaft member, said planetary gear type differential apparatus having a carrier mounted on said shaft member, a sun gear provided at said shaft member, a pinion engaged with the sun gear, and a pinion shaft for rotatably supporting the pinion to said carrier, comprising:
- a sliding portion provided on the shaft member;
- a projection formed by protruding an end portion of said pinion shaft from an end surface of the carrier;
- a cam member disposed between said sliding portion and said projection, said cam member including a friction surface that is slidably engaged with the sliding portion and a V-shaped groove that is engageable with said projection;
- and
- a pair of restriction sections formed at an end surface of the carrier and disposed at both sides of the cam member, each of said restriction sections regulating the movement of said cam member in a rotational direction of the carrier while a predetermined swing motion is permitted.
Dependencies are inferred from the claim text.