JPH0367726U - - Google Patents

Description

【図面の簡単な説明】[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図は同装置の第１カムメンバー
正面図、第３図は第２カムメンバーの正面図、第
４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の部分拡大図、第５図は第１実
施例に係る動力伝達装置を搭載した車両の概略構
成図、第６図は本考案の第２実施例に係る動力伝
達装置の断面図、第７図はトルク伝達特性を示す
グラフである。 符号の説明、１０，３０……動力伝達装置、１
０ａ，３０ａ……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、１１，３１……アウターケース、１
１ｃ，３１ｃ……第１シール部材、１２，３２…
…インナケース、１４，３４……第１カムメンバ
ー、１６，３６……第２カムメンバー、１６ａ，
３６ａ……第２シール部材、１７，３７……コロ
、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 a front view of the first cam member of the same device, Fig. 3 is a front view of the second cam member, and Fig. 4 a. , b is a partial exploded view of the cam part in the same device, FIG. 5 c is a partially enlarged view of FIG. 7 is a sectional view of a power transmission device according to a second embodiment of the present invention, and FIG. 7 is a graph showing torque transmission characteristics. Explanation of symbols, 10, 30...Power transmission device, 1
0a, 30a...Friction clutch, 10b, 30b
... Viscous resistance force generating means, 10c, 30c ... Thrust converting means, 11, 31 ... Outer case, 1
1c, 31c...first seal member, 12, 32...
...Inner case, 14,34...First cam member, 16,36...Second cam member, 16a,
36a... Second seal member, 17, 37... Roller, 25, 26... Propeller shaft.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 同軸的かつ相対回転可能に位置する内外両回転
部材間に配設され、これら両回転部材の相対回転
により作動して両回転部材をトルク伝達可能に連
結する摩擦係合力を発生させるとともに付与され
る推力に応じて摩擦係合力を増減させる摩擦クラ
ツチおよび前記両回転部材の相対回転に応じた粘
性抵抗力を発生させる粘性抵抗力発生手段、同粘
性抵抗力発生手段と前記摩擦クラツチ間に位置し
一方が前記両回転部材の一方に一体回転可能に設
けられて前記粘性抵抗力に応じて相対回転する一
対のカムメンバーとこれら両者間に介装されて両
カムメンバーを互に離間すべく作用するカムフオ
ロアを有する推力変換手段を備え、前記粘性抵抗
力発生手段を、前記外側回転部材内にて前記推力
変換手段の両カムメンバーの他方のカムメンバー
により区画された粘性流体室と、前記他方のカム
メンバーに設けられ前記流体室に突出する多数の
フイン部を同心的に有する第１フインと、前記流
体室内にて前記両回転部材の他方に一体回転可能
に設けられ前記第１フインの各フイン部と同心的
に交互に嵌合する多数のフイン部を有する第２フ
インとにより構成し、かつ前記粘性流体室と前記
摩擦クラツチの収容室間を液密的にシールするシ
ール部材を前記一方のカムメンバーおよび前記第
２フインのいずれか一方側またはこれら両者側に
設けたことを特徴とする動力伝達装置。 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 frictional engagement force in accordance with 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; a pair of cam members that are integrally rotatably provided on one of the rotating members and rotate relative to each other in accordance with the viscous resistance force; and a cam follower that is interposed between these cam members and acts to separate the cam members from each other. a viscous fluid chamber defined by the other cam member of both cam members of the thrust converting means in the outer rotating member; a first fin concentrically provided with a large number of fin parts protruding into the fluid chamber; and each fin part of the first fin provided in the fluid chamber so as to be integrally rotatable with the other of the rotating members. and a second fin having a plurality of fins that are fitted concentrically and alternately, and a sealing member that liquid-tightly seals between the viscous fluid chamber and the accommodation chamber of the friction clutch is provided on one of the cam members. and a power transmission device, characterized in that it is provided on one or both sides of the second fin.