JPH0193129U

JPH0193129U -

Info

Publication number: JPH0193129U
Application number: JP18927587U
Authority: JP
Priority date: 1987-12-11
Filing date: 1987-12-11
Publication date: 1989-06-19
Anticipated expiration: 2002-12-11
Also published as: JPH0742850Y2

Description

[Brief explanation of the drawing]

第１〜７図は本考案の第１実施例を示すもので
、第１図は四輪駆動車の前後輪回転吸収装置の断
面図、第２図はカムメンバーの側面図、第３図は
第２のカムメンバーのカム歯の正面図、第４図は
第１のカムメンバーのカム歯の正面図、第５図は
低回転時のカム歯の噛合い関係を示す説明図、第
６図は高回転時のカム歯の噛合い関係を示す説明
図、第７図は前後輪の回転差と差動制限トルクと
の関係を示す特性線図である。また、第８図は本
考案の第２実施例を示す四輪駆動車の最終減速装
置の断面図である。また、第９図は従来の装置の
前後輪の回転差と差動制限トルクとの関係を示す
特性線図である。６……ケース、８……シヤフト、１１……摩擦
クラツチ、１４……第１のカムメンバー、１５…
…第２のカムメンバー、１９……ビスカスカツプ
リング。 Figures 1 to 7 show the first embodiment of the present invention, in which Figure 1 is a sectional view of the front and rear wheel rotation absorption device for a four-wheel drive vehicle, Figure 2 is a side view of the cam member, and Figure 3 is a side view of the cam member. 4 is a front view of the cam teeth of the second cam member, FIG. 5 is an explanatory diagram showing the meshing relationship of the cam teeth at low rotation, and FIG. 6 is a front view of the cam teeth of the first cam member. 7 is an explanatory diagram showing the meshing relationship of cam teeth at high rotations, and FIG. 7 is a characteristic diagram showing the relationship between the rotation difference between the front and rear wheels and the differential limiting torque. Further, FIG. 8 is a sectional view of a final reduction gear for a four-wheel drive vehicle showing a second embodiment of the present invention. Further, FIG. 9 is a characteristic diagram showing the relationship between the rotation difference between the front and rear wheels and the differential limiting torque of the conventional device. 6... Case, 8... Shaft, 11... Friction clutch, 14... First cam member, 15...
...Second cam member, 19...Viscous cut spring.

Claims

[Scope of utility model registration request]

A case interposed in a part of the power transmission system for the front and rear wheels of a four-wheel drive vehicle, a shaft rotatably supported by the case, a friction clutch provided between the case and the shaft, and a spline fitted to the case. a first member which is coupled to apply a pressing force to the friction clutch;
a cam member, a second cam member meshed with the first cam member via cam teeth, and a second cam member.
A four-wheel drive comprising: a viscous cut spring provided between a cam member and the shaft, and cam teeth of both cam members are set in a shape in which the pressure angle becomes larger as it approaches the tips of the teeth. Vehicle front and rear wheel rotation absorption device.