JPS6097668U

JPS6097668U - Neutral position holding mechanism in skid steering device

Info

Publication number: JPS6097668U
Application number: JP19120483U
Authority: JP
Inventors: 門川　嘉男
Original assignee: 株式会社豊田自動織機製作所
Priority date: 1983-12-12
Filing date: 1983-12-12
Publication date: 1985-07-03

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図乃至第５図は第１の実施例を表わす図面であって
、第１図はスキッドステアリング装置の外観を表わす斜
視図、第２図はプレートに対する固定軸の取付は部を表
わす断面図、第３図乃至第５図は作用状態を表わすトラ
ニオンレバ一部分の　　−断面図である。第６図は第２
の実施例を表わす図面であってトラニオンレバ一部分を
表わす断面図である。又第７図は従来構造を表わす図面
である。　　　　　　゛１・・・・・・油圧ポンプ、２・・・・・・斜板軸、３
・・・・・・トラニオンレバー、４・・・・・・球面ジ
ヨイント、５・・・・・・ステアリングロッド、６・・
・・・・可動軸、７・・・・・・プレート、８・・・・
・・フレーム、９・・・・・・取付は軸、１０・・・・
・・スプリング、１０ａ・・・・・・コイル部、１０ｂ
、１０ｂ′・・・・・・立上り部、１１・・・・・・固
定軸、１２・・・・・・長孔、１３・・・・・・ボルト
。1 to 5 are drawings showing the first embodiment, in which FIG. 1 is a perspective view showing the external appearance of the skid steering device, and FIG. 2 is a sectional view showing the attachment of the fixed shaft to the plate. , and FIGS. 3 to 5 are cross-sectional views of a portion of the trunnion lever showing the operating state. Figure 6 is the second
FIG. 2 is a cross-sectional view showing a portion of the trunnion lever according to the embodiment of the present invention. Further, FIG. 7 is a drawing showing a conventional structure.゛1... Hydraulic pump, 2... Swash plate shaft, 3
... Trunnion lever, 4 ... Spherical joint, 5 ... Steering rod, 6 ...
...Movable axis, 7...Plate, 8...
...Frame, 9...Mounting is done by shaft, 10...
... Spring, 10a ... Coil part, 10b
, 10b'... Rising part, 11... Fixed shaft, 12... Elongated hole, 13... Bolt.

Claims

[Scope of utility model registration request]

(1) A trunnion lever is connected to the protruding end of a swash plate shaft that is installed horizontally on the swash plate type hydraulic pump of a hydraulic drive unit consisting of a combination of a swash plate type hydraulic pump and a hydraulic motor, and the trunnion lever is linked with a steering lever. The skid steering device is provided to be swingable in the front and back direction, and includes a movable shaft protruding from the trunnion lever side in parallel with the swash plate shaft, and a movable shaft protruding from the frame side so that its mounting position can be freely adjusted. The fixed shaft is located on an extension line along the radial direction of the swash plate shaft, and a pair of rising parts are formed in parallel to each other and protrude from both ends of the coil part, and the fixed shaft is moored to the frame side. A gap provided so that the fixed shaft and the movable shaft are held by the rising portions of the spring;
Neutral position holding mechanism in rad steering device.

(2) The fixed shaft has a long hole opening on the frame side,
A neutral position holding mechanism in a skid steering device according to claim 1, wherein the neutral position holding mechanism in a skid steering device as claimed in claim 1 is mounted as a utility model, and the mounting position thereof is adjustable by a bolt screwed into the fixed shaft through the elongated hole.

(3) In the skid steering device according to claim 1, the fixed shaft is formed to have an elliptical cross-sectional shape and is rotatably attached to the frame side. Neutral position holding mechanism.