JPH03105205U

JPH03105205U -

Info

Publication number: JPH03105205U
Application number: JP1339590U
Authority: JP
Priority date: 1990-02-14
Filing date: 1990-02-14
Publication date: 1991-10-31
Anticipated expiration: 2005-02-14
Also published as: JPH0739368Y2

Description

[Brief explanation of drawings]

図面は本考案の実施例を示し、第１図は全体側
面図、第２図は取付フレームの正面図、第３図は
同側面図、第４図は連結杆の着脱装置の側断面図
、第５図は連結装置の連結状態を示す側面図、第
６図は連結体の正面図、第７図は他の実施例を示
す要部断面図である。２……トラクタ車体、５……三点リンク機構、
６……ＰＴＯ軸、７……トツプリンク、８……ロ
アリンク、１１……連結体、１２……作業装置、
１６……固定フレーム、２２……取付フレーム、
２７……第１弾性部材、２８ａ……第２弾性部材
、３０……上連結部、３２……下連結部、３７…
…上係合部、４０……下係合部、５２……連結杆
。 The drawings show an embodiment of the present invention, in which Fig. 1 is an overall side view, Fig. 2 is a front view of the mounting frame, Fig. 3 is a side view thereof, and Fig. 4 is a side sectional view of the connecting rod attachment/detachment device. FIG. 5 is a side view showing the connected state of the connecting device, FIG. 6 is a front view of the connecting body, and FIG. 7 is a sectional view of a main part showing another embodiment. 2... Tractor body, 5... Three-point linkage mechanism,
6...PTO axis, 7...Top link, 8...Lower link, 11...Connection body, 12...Work device,
16... Fixed frame, 22... Mounting frame,
27...First elastic member, 28a...Second elastic member, 30...Upper connecting portion, 32...Lower connecting portion, 37...
...Upper engaging part, 40...Lower engaging part, 52...Connecting rod.

Claims

[Scope of Claim for Utility Model Registration] A pair of left and right lower links whose ends are rotatably supported around a horizontal axis in the left and right directions on the tractor body and extend in the front and back direction, and above the lower links and at the front and rear of the lower links. Each tip of the lower link and the top link of a three-point link mechanism includes a top link whose one end is pivotally supported on the tractor body at an intermediate position in the direction so as to be rotatable about a horizontal axis in the left-right direction and extends in the front-rear direction. connected by a connecting body, an upper engaging part with an upward opening is provided at the center of the upper part of the connecting body, and lower engaging parts are provided on both left and right sides of the lower part of the connecting body, and is detachably attached to the tractor. A lower connecting part is provided on a fixed frame of the working device, and the lower connecting part is detachably engaged with the lower engaging part in the front-back direction, and the lower end is pivotally supported on the fixed frame so as to be rotatable about a horizontal axis in the left-right direction. a mounting frame extending upwardly is provided, an upper connecting portion is provided on the top of the mounting frame with which the upper engaging portion removably engages from below, and between the mounting frame and the fixed frame,
A first elastic member that rotationally biases the mounting frame in one direction and a second elastic member that rotationally biases the mounting frame in the opposite direction are provided, and the mounting frame is A connecting rod is provided above the top link to connect the tractor body and the fixed frame in a removable and rotatable manner so as to form a parallel link with the lower link. A coupling device for a tractor and a working device, characterized in that: