JPH02150464U

JPH02150464U -

Info

Publication number: JPH02150464U
Application number: JP5792189U
Authority: JP
Priority date: 1989-05-19
Filing date: 1989-05-19
Publication date: 1990-12-26

Description

[Brief explanation of drawings]

第１図は本考案を適用したＨＳＴを備える一例
として芝刈機を示す概略側面図、第２図はシート
部分を省略して示す概略平面図、第３図はＨＳＴ
部分の後方から見た縦断面図、第４図と第５図は
第３図の矢印−線及び矢印−線に沿つた
各断面図、第６図は第３図における斜板装置部分
の拡大図、第７図は斜板の要部破断図、第８図は
第５図における斜板とコントロール軸部分の拡大
図、第９図はコントロール軸突出部分の平面図で
ある。尚、図面中、２０はＨＳＴ、２６はポンプ軸、
４１はシリンダブロツク、４２はピストン、５１
は斜板、５４は凹部、６１はスラストローラベア
リング、６２はリング部材、６３はスラストロー
ラ、６５，６６はプレート、６７は抜け止め部材
である。 Fig. 1 is a schematic side view showing a lawn mower as an example equipped with an HST to which the present invention is applied, Fig. 2 is a schematic plan view showing the lawn mower with the seat portion omitted, and Fig. 3 is an HST.
4 and 5 are cross-sectional views along the arrow-line and arrow-line in FIG. 3, and FIG. 6 is an enlarged view of the swash plate device portion in FIG. 3. 7 is a cutaway view of the main part of the swash plate, FIG. 8 is an enlarged view of the swash plate and control shaft portion in FIG. 5, and FIG. 9 is a plan view of the protruding portion of the control shaft. In addition, in the drawing, 20 is the HST, 26 is the pump shaft,
41 is a cylinder block, 42 is a piston, 51
54 is a swash plate, 54 is a recessed portion, 61 is a thrust roller bearing, 62 is a ring member, 63 is a thrust roller, 65 and 66 are plates, and 67 is a retaining member.

Claims

[Claims for Utility Model Registration] 1. A hydraulic transmission device which is provided with a swash plate equipped with a thrust bearing that contacts a plurality of piston heads fitted in a rotating cylinder block, and in which a gear shift operation is performed by changing the inclination angle of the swash plate. A recess is formed in the swash plate to accommodate a thrust roller, a plate is interposed between the thrust roller, the piston head, and a bottom surface of the recess to constitute a bearing, and a bearing is formed between the bearing and the recess. 1. A swash plate device for a hydraulic transmission, characterized in that a ring member is relatively rotatably interposed between the circumferential surface of the recess and the swash plate device. 2. The swash plate device according to claim 1, wherein a retaining member for the bearing member is provided on the swash plate.