JPS63155303U

JPS63155303U -

Info

Publication number: JPS63155303U
Application number: JP4659787U
Authority: JP
Priority date: 1987-03-27
Filing date: 1987-03-27
Publication date: 1988-10-12

Description

[Brief explanation of the drawing]

第１図乃至第８図は本考案の一実施例を示し、
第１図及び第２図の各図は異なる作動体勢を示す
要部の一部断面側面図、第３図は全体側面図、第
４図は要部の一部断面正面図、第５図は第４図の
Ａ―Ａ線矢視図、第６図及び第７図の各図は異な
る作動体勢を示すクラツチ装置等の展開断面図、
第８図は第７図のＢ矢視図、第９図は本考案とは
異なるトラクタと耕耘装置の連結装置の要部の一
部断面側面図である。１…トラクタ、３…作業機昇降用油圧装置、９
…３点リンク機構、１０…トツプリンク、１１…
ロアリンク、１４…連結体、１８…連結軸、６８
…係合部、６９…係合ブラケツト、７０…天壁部
、７１…底壁部、７３…傾斜壁部、７５…阻止装
置、Ｒ…ロータリ耕耘装置（作業機）。 1 to 8 show an embodiment of the present invention,
Figures 1 and 2 are partial cross-sectional side views of the main parts showing different operating positions, Figure 3 is an overall side view, Figure 4 is a partial cross-sectional front view of the main parts, and Figure 5 is a partial cross-sectional side view of the main parts showing different operating positions. The AA line arrow view in FIG. 4, and the developed cross-sectional views of the clutch device etc. showing different operating positions,
FIG. 8 is a view taken in the direction of arrow B in FIG. 7, and FIG. 9 is a partially sectional side view of a main part of a connecting device for a tractor and a tiller, which is different from the present invention. 1...Tractor, 3...Hydraulic device for lifting and lowering work equipment, 9
...Three-point link mechanism, 10...Top link, 11...
Lower link, 14... Connecting body, 18... Connecting shaft, 68
...Engagement part, 69...Engagement bracket, 70...Top wall part, 71...Bottom wall part, 73...Slope wall part, 75...Blocking device, R...Rotary tilling device (work machine).

Claims

[Claims for Utility Model Registration] A work implement R is detachably connected to the tractor 1 via a three-point linkage mechanism 9 consisting of a central top link 10 and a pair of left and right lower links 11, and both lower links 11 can be raised and lowered by a lifting device 3, and the PTO shaft 8 of the tractor 1 and the input shaft 2 of the working machine R
4 are releasably connected, the top link 10 and both lower links 11 are connected by a connecting body 14 at their respective ends on the working machine side, and when the connecting body 14 is raised, the working machine R is moved to its center in the lateral direction. A pair of left and right connecting shafts 18 are disposed in the left and right direction on both left and right sides of the working machine R and one of the connecting bodies 14. , a top wall portion 70 and a bottom wall portion 7 on the other left and right sides.
A pair of left and right engagement brackets 69 having a top wall 70 and a bottom wall 71 of the engagement bracket 69 are provided, each having a top wall 70 and a bottom wall 71 having a top wall 70 and a bottom wall 71.
When the connecting shaft 18 approaches first, the amount of forward protrusion of the wall on the side to which the connecting shaft 18 approaches is made smaller than that on the other side, and an inclined wall is formed on the tip side of the wall on the side to which the connecting shaft 18 approaches. The inclined wall part 73 is inclined with respect to the other side wall part so as to gradually separate from the other side wall part as it approaches the tip, and the connecting body 14 is connected to the engaging part 68. By being further raised after the engagement, the work implement R rotates toward the tractor 1 around the engagement portion 68, and the connecting shaft 18 connects to the base of the top wall portion 70 and bottom wall portion 71 of the engagement bracket 69. so that they are relatively removably engaged between the two,
A coupling device for a tractor and a working machine, characterized in that a blocking device 75 is provided for releasably blocking the relative separation of each coupling shaft 18 from each engagement bracket 69.