JPS647945U

JPS647945U -

Info

Publication number: JPS647945U
Application number: JP10363987U
Authority: JP
Priority date: 1987-07-06
Filing date: 1987-07-06
Publication date: 1989-01-17
Anticipated expiration: 2002-07-06
Also published as: JPH0534360Y2

Description

[Brief explanation of the drawing]

第１図は本考案を適用したロツクアツプダンパ
ーの要部の断面拡大図（第４図の−断面図）
、第２図は捩り時の状態を示す第１図と同じ部分
の断面図、第３図は第１図の−断面図、第４
図は第１図の−断面図、第５図はロツクアツ
プダンパーを備えたトルクコンバーターの縦断面
図、第６図はトルク特性線図、第７図は従来例の
正面部分図、第８図は第７図の−拡大部分断
面図である。１……ハウジング、５……入力軸、
７……ポンプ羽根車、８……タービン羽根車、１
０……出力軸、１４，１５……ピストンプレート
、リテイニングプレート（ピストンプレート構成
体）、２１……ドリブンプレート、２３……ダン
パーケース、２３ａ……端壁、２４……楔外筒、
２５……フエーシング、２８……トーシヨンばね
、３２……楔、３３……ロツド、３４……楔部。 Figure 1 is an enlarged cross-sectional view of the main parts of a lock-up damper to which the present invention is applied (-cross-sectional view in Figure 4)
, Fig. 2 is a cross-sectional view of the same part as Fig. 1 showing the state at the time of twisting, Fig. 3 is a - sectional view of Fig. 1, and Fig. 4 is a cross-sectional view of the same part as Fig. 1.
The figures are - sectional view of Fig. 1, Fig. 5 is a longitudinal sectional view of a torque converter equipped with a lock-up damper, Fig. 6 is a torque characteristic diagram, Fig. 7 is a partial front view of the conventional example, and Fig. 8 7 is an enlarged partial cross-sectional view of FIG. 1...Housing, 5...Input shaft,
7...Pump impeller, 8...Turbine impeller, 1
0... Output shaft, 14, 15... Piston plate, retaining plate (piston plate structure), 21... Driven plate, 23... Damper case, 23a... End wall, 24... Wedge outer cylinder,
25... facing, 28... torsion spring, 32... wedge, 33... rod, 34... wedge portion.

Claims

[Scope of utility model registration request]

A lock-up damper for a torque converter, which includes a piston plate structure that can be press-contacted to an input side housing, and a driven plate fixed to a turbine impeller, and the piston plate structure and the driven plate are twistably connected via an elastic means. A cylindrical damper case having both end walls is fixed to the piston plate structure in a position along the circumferential direction of the piston plate structure, and the damper case is divided into a plurality of arc-shaped parts and is expandable. Two sets of wedge outer cylinders are arranged at intervals in the case axial direction, and the cross-sectional shape of the wedge outer cylinder is wedge-shaped with inclined surfaces on both sides in the case axial direction, and the outer peripheral surface of the wedge outer cylinder has a damper case inner peripheral surface. A conical wedge is provided in contact with the inclined surface of each wedge outer cylinder on the center side in the axial direction of the case, a torsion spring is compressed between both wedges, and a torsion spring is provided in the case end wall to pass through the facing. A rod is provided so as to be movable in the axial direction of the case, and a conical wedge portion is formed at the inner end of the case of each rod, and the outer end of the case of the rod is brought into contact with the driven plate. A lock-up damper for torque converters, which is characterized by: