JPH0410147U

JPH0410147U -

Info

Publication number: JPH0410147U
Application number: JP5049290U
Authority: JP
Priority date: 1990-05-15
Filing date: 1990-05-15
Publication date: 1992-01-28

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示す構成図、第２
図は第１図のＡ−Ａ断面図、第３図Ａおよび第３
図Ｂは第１図および第２図におけるスラストリン
グアセンブリの構成図である。１……デフケース、２，３……ウオームギア、４
，５，６，７……エレメントギア、４ａ，５ａ，
６ａ，７ａ……ウオームホイール、４ｂ，５ｂ，
６ｂ，７ｂ……係合平歯車、８，９，１０……ス
ラストリングアセンブリ、２０……摩擦リング、
２１……ベルト部材、２２，２３……スラストリ
ング。 Fig. 1 is a configuration diagram showing one embodiment of the present invention;
The figures are A-A sectional view of Figure 1, Figure 3 A and 3.
Figure B is a block diagram of the thrust ring assembly in Figures 1 and 2. 1... Differential case, 2, 3... Worm gear, 4
, 5, 6, 7...Element gear, 4a, 5a,
6a, 7a...worm wheel, 4b, 5b,
6b, 7b... Engagement spur gear, 8, 9, 10... Thrust ring assembly, 20... Friction ring,
21... Belt member, 22, 23... Thrust ring.

Claims

[Scope of utility model registration request]

It consists of a rotationally driven differential case, a pair of rotatable worm gears arranged in series within the differential case and coupled to two output shafts, and a worm horn and engagement spur gears provided on both sides of the worm wheel. A plurality of element gears rotatably provided on the differential case, each pair including a pair of element gears in which engaging spur gears mesh with each other and a worm wheel meshes with each of the worm gears, and the pair of worm gears. and a thrust ring assembly for adjusting frictional force interposed between the worm gear and the differential case, the differential for a vehicle corrects a rotational difference between the two output shafts and distributes torque. In the apparatus, at least one thrust ring assembly includes a friction ring divided into a plurality of circular arc portions, and is provided on an outer periphery of the friction ring to couple the friction ring in a ring shape and to allow the friction ring to expand in a radial direction. It consists of a ring-shaped elastic belt member and a pair of thrust rings that sandwich the friction ring and cover the friction ring, and when a force of a predetermined value or less is applied in the axial direction of the worm gear, the thrust ring is in contact with both side surfaces of the friction ring, and when a force of a predetermined value or more is applied in the axial direction of the worm gear, the friction ring expands in the radial direction, and the thrust ring is in contact with both side surfaces and the outer peripheral surface of the friction ring. A variable torque bias mechanism for a vehicle differential device configured as follows.