JPH01140393U

JPH01140393U -

Info

Publication number: JPH01140393U
Application number: JP3451688U
Authority: JP
Priority date: 1988-03-17
Filing date: 1988-03-17
Publication date: 1989-09-26
Also published as: JPH0455028Y2

Description

[Brief explanation of drawings]

第１図は本考案による継ぎブーム連結機構の一
実施例を示す側面図、第２図は該機構を適用した
作業機の一例を示す側面図、第３図は該実施例に
おける分割ブーム連結部を示す平面図、第４図は
該実施例のストツパを示す水平断面図、第５図は
該実施例の第１のピンのピン穴を合致させる構造
を説明する接続部の側面図、第６図は第５図のＥ
―Ｅ断面図、第７図は該実施例における受け具の
説明図、第８図は該実施例の継足し作業状態を示
す側面図、第９図は、第７図のように受け具のサ
イズを変えることによつてピン穴合致位置を均一
化できることを説明する図である。 Fig. 1 is a side view showing an embodiment of the joint boom connection mechanism according to the present invention, Fig. 2 is a side view showing an example of a working machine to which the mechanism is applied, and Fig. 3 is a side view showing an example of the split boom connection mechanism in this embodiment. FIG. 4 is a horizontal sectional view showing the stopper of the embodiment, FIG. The figure is E in Figure 5.
-E sectional view, FIG. 7 is an explanatory diagram of the receiving tool in this embodiment, FIG. 8 is a side view showing the replenishing work state of this embodiment, and FIG. 9 is an illustration of the receiving tool as shown in FIG. 7. FIG. 6 is a diagram illustrating that pin hole matching positions can be made uniform by changing the size.

Claims

[Scope of claim for utility model registration] 1. A boom attached to the main body of a self-propelled work machine,
In a joint boom connection mechanism that is composed of a plurality of split booms and in which adjacent split booms are removably connected by two first and second through pins, a guide is provided to one of the split booms that are connected to each other. A pin is provided, a pin receiver having a semicircular pin receiving surface is detachably attached to the side plate of the other split boom, and in a state where the guide pin is fitted to the pin receiving surface, the first pin is inserted. The pin holes of the two split booms to be installed are on an arc centered on the guide pin, and by raising the split boom attached to the work equipment main body, it is possible to match the two pin holes. and in a state where the first pin connects the two split booms and the pin receiver is removed, the second
The pin holes of both split booms into which the pins are inserted are on an arc centered on the first pin, and by raising the split boom attached to the work equipment main body, the second pin is inserted. A joint boom connection mechanism having a configuration in which pin holes for pin insertion match. 2. The joint boom according to claim 1, wherein the second split boom pin hole for inserting the second pin matches the stopper provided on one split boom when the locking portion of the other split boom is in contact with the stopper provided on the other split boom. connection mechanism. 3. Claim 2, wherein the stopper is adjustable in position.
The joint boom linkage mechanism described. 4. The joint boom according to any one of claims 1 to 3, wherein the size of the pin receiver is made different for each divided boom of each stage, so that the heights of the positions where the pin holes of the first pins are aligned are approximately the same. connection mechanism.