Differential mechanism restricting device

Patent metadata

Field	Value
Publication number	US-8986152-B2
Application number	US-201414215416-A
Country	US
Kind code	B2
Filing date	Mar 17, 2014
Priority date	Mar 28, 2013
Publication date	Mar 24, 2015
Grant date	Mar 24, 2015

Abstract

A miniaturized differential mechanism restricting device that is mechanically connected to two operation elements. A plurality of holes are formed in an output-side cam, and pin holes are formed in a differential case in a penetrating manner such that the pin holes overlap with the plurality of holes. A plurality of first pins, which pass through the pin holes in a penetrating manner and are fitted in the holes, extend from a first slide member, and a plurality of second pins, which pass through the pin holes in a penetrating manner and are fitted in the holes, extend from a second slide member. The first slide member is moved in the axial direction by a first shift fork, and the second slide member is moved in the axial direction by a second shift fork.

First claim

What is claimed is:

1. A differential mechanism restricting device provided to a differential gear and restricting a differential of a differential mechanism, the differential gear comprising:
a pinion gear that is mounted on an end portion of a propeller shaft that transmits power from a power unit;
a ring gear that meshes with the pinion gear;
a differential case that is rotated together with the ring gear and forms a differential chamber therein;
a differential mechanism that is housed in the differential case;
left and right output-side cams that constitute portions of the differential mechanism and transmit power transmitted to the ring gear to drive shafts; and
a gear case that houses the ring gear and the differential case,
wherein the differential mechanism restricting device comprises:
a first slide member that is supported on the gear case, and allows the insertion of a first pin in a state where the first pin extends over the differential case or the ring gear and the output-side cam in response to an operation of a first operation element; and
a second slide member that is supported on the gear case, and allows the insertion of a second pin in a state where the second pin extends over the differential case or the ring gear and the output-side cam in response to an operation of a second operation element, and
the first slide member and the second slide member are arranged in a juxtaposed manner, and the second pin is formed in a state where the second pin penetrates the first slide member.

2. The differential mechanism restricting device according to claim 1 , wherein
the differential mechanism restricting device further comprises:
a first rotary shaft that is rotated by an operation of the first operation element and operates the first slide member and a second rotary shaft that is rotated by operation of the second operation element and operates the second slide member, and
the first rotary shaft and the second rotary shaft are arranged in a separated manner in the longitudinal direction of a vehicle with the drive shafts sandwiched therebetween.

3. The differential mechanism restricting device according to claim 2 , wherein the first rotary shaft and the second rotary shaft are offset from each other in the vehicle width direction,
a first arm for rotating the first rotary shaft extends toward a second rotary shaft side in the vehicle width direction, and
a second arm for rotating the second rotary shaft extends toward a first rotary shaft side in the vehicle width direction.

4. The differential mechanism restricting device according to claim 2 , wherein the first slide member is formed annularly, a plurality of first pins are formed equidistantly in the circumferential direction, and openings into which a plurality of second pins are insertable are formed between the first pins in the circumferential direction.

5. The differential mechanism restricting device according to claim 2 , wherein
the first operation element is a switching lever that changes over a drive mode, and
the second operation element is a switching lever that is operated at the time of parking a vehicle.

6. The differential mechanism restricting device according to claim 3 , wherein the first slide member is formed annularly, a plurality of first pins are formed equidistantly in the circumferential direction, and openings into which a plurality of second pins are insertable are formed between the first pins in the circumferential direction.

7. The differential mechanism restricting device according to claim 3 , wherein
the first operation element is a switching lever that changes over a drive mode, and
the second operation element is a switching lever that is operated at the time of parking a vehicle.

8. The differential mechanism restricting device according to claim 4 , wherein
the first operation element is a switching lever that changes over a drive mode, and
the second operation element is a switching lever that is operated at the time of parking a vehicle.

9. The differential mechanism restricting device according to claim 6 , wherein
the first operation element is a switching lever that changes over a drive mode, and
the second operation element is a switching lever that is operated at the time of parking a vehicle.

Assignees

• Honda Motor Co Ltd

Inventors

• Sato Koji
• Hayakawa Koshi

Classifications

• F16H2048/305

  using manual actuators · CPC title

• F16H48/24 Primary

  using positive clutches or brakes · CPC title

• F16H48/20 Primary

  Arrangements for suppressing or influencing the differential action, e.g. locking devices · CPC title