JPS6395907U

JPS6395907U -

Info

Publication number: JPS6395907U
Application number: JP19168586U
Authority: JP
Priority date: 1986-12-15
Filing date: 1986-12-15
Publication date: 1988-06-21

Description

[Brief explanation of the drawing]

第１図は本考案に係わるブルドーザ牽引装置の
一実施例を示す平面図、第２図はその側面図、第
３図はその左旋回時の状態を示す作用説明図、第
４図はその右旋回時の状態を示す作用説明図であ
る。１……被牽引作業車、２……ブルドーザ、３…
…リツパー取付座、４……ピン、５……ピン、６
……取付台、７……側面ブラケツト、８……吊下
棒、９……上面ブラケツト、１０……自在継手、
１１……二股状連結具、１２……ブラケツト、１
３……ピン、１４……自在継手、１５……ステア
リング棒、１６……中央支点レバー、１７……端
部支点レバー、１８……自在継手、１９……中央
支点レバー１６の支点ピン、２０……ピン、２１
……連結棒、２２……端部支点レバー１７の支点
ピン、２３，２４，２５……ピン、２６……ステ
アリング用油圧シリンダ、２７，２８……クロー
ラ。 Fig. 1 is a plan view showing an embodiment of the bulldozer traction device according to the present invention, Fig. 2 is a side view thereof, Fig. 3 is an explanatory diagram showing its operation when turning to the left, and Fig. 4 is its right side view. FIG. 3 is an explanatory diagram showing the operation when turning. 1...Towed work vehicle, 2...Bulldozer, 3...
...Ritzper mounting seat, 4...Pin, 5...Pin, 6
... Mounting base, 7 ... Side bracket, 8 ... Hanging rod, 9 ... Top bracket, 10 ... Universal joint,
11...Bifurcated connector, 12...Bracket, 1
3... Pin, 14... Universal joint, 15... Steering rod, 16... Center fulcrum lever, 17... End fulcrum lever, 18... Universal joint, 19... Fulcrum pin of center fulcrum lever 16, 20 ...Pin, 21
... Connecting rod, 22 ... Fulcrum pin of end fulcrum lever 17, 23, 24, 25 ... Pin, 26 ... Hydraulic cylinder for steering, 27, 28 ... Crawler.

Claims

[Scope of utility model registration request]

A towed work vehicle and two bulldozers located in front and rear thereof are connected so that they can be towed, and a steering device that turns each bulldozer in the opposite direction by the same angle is installed between the towed work vehicle and each bulldozer. In a bulldozer towing device installed in A central fulcrum lever is attached to the center of the rear of each bulldozer via a universal joint, and is provided at one of the front and rear of the towed work vehicle, and is rotatable in the horizontal direction using the center as a fulcrum. An end fulcrum lever is provided on the other of the central fulcrum lever and the rear part, and is rotatable in the horizontal direction using one end as a fulcrum, and one end of the lever is spaced a predetermined distance from the fulcrum of the central fulcrum lever and the fulcrum of the end fulcrum lever. Both ends of a connecting rod are pivoted to the other end of the same lever spaced apart by the same distance, and both ends of a steering hydraulic cylinder are connected to the other end of the central fulcrum lever and the center of the end fulcrum lever. Both ends of the steering rod are attached via universal joints to one side of the rear of one bulldozer and near one end of the center fulcrum lever, and one side of the rear of the other bulldozer and near the center of the end fulcrum lever are pivotably supported. A bulldozer traction device characterized in that both ends of a steering rod are attached to the steering rod via a universal joint.