JPH0323230U

JPH0323230U -

Info

Publication number: JPH0323230U
Application number: JP8464289U
Authority: JP
Priority date: 1989-07-19
Filing date: 1989-07-19
Publication date: 1991-03-11

Description

[Brief explanation of the drawing]

第１図は本考案の第１実施例に係る動力伝達装
置の断面図、第２図は同装置の要部拡大断面図、
第３図ａ，ｂは同装置におけるカム部の部分展開
図、同図ｃは同図ｂの一部省略部分拡大図、第４
図は同装置を搭載した車両の概略構成図、第５図
は粘性流体の充填率に対する粘性剪断トルクのト
ルク倍率の関係を示すグラフ、第６図は車速に対
する伝達トルクの関係を示すグラフ、第７図は第
２実施例に係る動力伝達装置の要部拡大断面図で
ある。符号の説明、１０，３０……動力伝達装置、１
０ａ，３０ｂ……摩擦クラツチ、１０ｂ，３０ｂ
……粘性抵抗力発生手段、１０ｃ，３０ｃ……推
力変換手段、１０ｄ，３０ｄ……増容手段、１１
，３１……アウタケース、１２，３２……インナ
ーケース、１４……第１カムメンバー、１５……
第１フイン、１６……第２カムメンバー、１７ａ
……コロ、１７ｂ……ボール（重錘）、１８……
ピストン、３９ａ……ピストン、１７ｃ，３９ｂ
……圧縮スプリング、Ｒ_１……流体室、Ｒ_２……
第２流体室、２５，２６……プロペラシヤフト。 FIG. 1 is a sectional view of a power transmission device according to a first embodiment of the present invention, FIG. 2 is an enlarged sectional view of the main part of the device,
Figures 3a and 3b are partially exploded views of the cam part of the same device, Figure 3c is an enlarged view of a partially omitted part of Figure 4b, and Figure 4.
Figure 5 is a schematic configuration diagram of a vehicle equipped with the device, Figure 5 is a graph showing the relationship between the filling rate of viscous fluid and the torque multiplier of viscous shear torque, Figure 6 is a graph showing the relationship between transmitted torque and vehicle speed, FIG. 7 is an enlarged sectional view of a main part of a power transmission device according to a second embodiment. Explanation of symbols, 10, 30...Power transmission device, 1
0a, 30b...Friction clutch, 10b, 30b
... Viscous resistance force generating means, 10c, 30c ... Thrust converting means, 10d, 30d ... Volume increasing means, 11
, 31... Outer case, 12, 32... Inner case, 14... First cam member, 15...
1st Finn, 16... 2nd cam member, 17a
...Koro, 17b...Ball (weight), 18...
Piston, 39a... Piston, 17c, 39b
... Compression spring, R ₁ ... Fluid chamber, R ₂ ...
Second fluid chamber, 25, 26...propeller shaft.

Claims

[Scope of utility model registration request]

It is disposed between the inner and outer rotating members that are coaxially and relatively rotatably positioned, and is actuated by the relative rotation of these rotating members to generate and apply a frictional engagement force that connects the two rotating members so that torque can be transmitted. a friction clutch that increases or decreases a friction engagement force in accordance with the thrust; a viscous resistance generating means that generates a viscous resistance in accordance with the relative rotation of the two rotating members; and a viscous resistance generating means located between the viscous resistance generating means and the friction clutch; The thrust converting means includes a pair of cam members that rotate relative to each other in response to a viscous resistance force, and a cam follower interposed between the two cam members, and the viscous resistance force generating means is installed within the outer rotating member. a viscous fluid chamber partitioned by one of the cam members; a first fin concentrically having a number of fins provided on the one cam member and protruding into the fluid chamber;
The first fin is rotatably provided relative to the fin.
A second fin having a plurality of fin parts concentrically and alternately fitted with each fin part of the fin, a second fluid chamber communicating with the fluid chamber, and a fluid chamber configured to operate in response to centrifugal force. and a piston that increases the volume of the second fluid chamber.