SU1232646A1 - Device for locking cargo arm on loader fork - Google Patents

Description

This invention relates to locking mechanisms for various attachments, such as a lifting boom, on forklifts.

The purpose of the invention is to accelerate the process of fixation by its automation and increased security.

FIG. 1 shows a boom lift assembly; in fig. 2 - node I (enlarged upper part of the fixing device); in fig. 3 is a view A of FIG. one.

The fixation device comprises a hook 1 fixed pivotally for limited rotation on the axis 2 located in the rear part of the boom 3, a pusher 4 having the possibility of limited vertical movement which is associated with the oval hole 5 on the hook 1 axis 6, the spring 7 worn on the pusher 4 and pushing the pusher down.

The device works as follows.

When installing the boom with its support plane on the floor, the pusher 4 rises up and, overcoming the resistance of the spring 7, turns the hook 1 around the axis 2 to the position indicated in FIG. 2 dash-dotted line. A loader pulls up to an arrow, inserts its pitchfork into special guide arrows and lifts it. In this case, the short shoulder of the hook I enters the window of the fork carriage. Spring 7 wring out

the pusher 4 is down, dragging the hook 1 along with it and thereby fixing the boom with 3 ha forks. The pusher 4 is connected with the hook 1 to the axis 6 entering the oval holes 5. With raised forks with boom 3, the lower part of the pusher 4 projects beyond the supporting plane of the boom. To remove the arrows from the fork, they are lowered onto the floor. At this, the pusher 4, interacting with the floor, overcoming the resistance of the spring 7, turns the hook 1 around the axis 2. The loader drives off, while

The forklift forks freely come out of the special guide booms.

Fi & .2

Type A

Fig.Z

Claims (1)

DEVICE FOR FIXING A LIFTING ARROW ON A LOADER FORK, containing a hook pivotally with the possibility of limited rotation in the rear of the boom and interacting with the cargo plate of the loader, characterized in that, in order to accelerate the fixing process by automating it and increasing safety, in the hook in the area of its articulation, an oval hole is made, and in the boom, vertical guides in which a vertical spring-loaded relative to it is mounted with limited movement their compression spring pusher, the upper end of which is fixed axle mounted in said oval hole and the lower end of the pusher is located below the supporting plane raised jib. Figure 1 (L a s u σ OS