JPS6194993A - Preventive device for uncontrolled travelling of moving body - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a stopper for preventing a moving object from running away.

Background of the Invention As shown in Japanese Unexamined Patent Publication No. 55-165886, rail clamps conventionally used to prevent outdoor equipment cranes from running away press against the sides of the rail from the left and right, causing the rail to become embedded. It cannot be used during ceremonies.

In addition, since the left and right pressing uses the frictional force generated by the force, pressing requires a spring force to generate force, and a strong pressing requires spring force, and in order to release it, further force is required. This requires a hydraulic system that is stronger than the spring force, which has the disadvantage of increasing production costs.

[Purpose of the invention]

It is an object of the present invention to provide an inexpensive device that can be applied to recessed rails.

[Requirements for invention]

The present invention prevents the crane from running away by driving wedges between the wheels of the moving body and the rails, causing the wheels to ride on the wedges, and using the frictional force generated between the wedges and the rails due to the crane's own weight.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to FIGS. 7E1, 2, and 3. Figure 1 shows the state in which four screws 3 and 4 have been driven between the left and right wheels 1 and 2. Sasabi 3.
4 is connected to the wheel 5 by a link 6.7.

When the wheel 5 is pushed down, the wedges 3, 4 are placed on the rail 9. At this time, a gap S is created between the moving body 8 and the wheel 5 so that the head claps. When the movable body 8 moves in the direction of arrow A, the wheels 1 attached to the movable body 8 ride on the wedge 4 and become unable to move. Note that the same applies to the wheel 2 and the wedge 3 in the direction opposite to the arrow A.

Figure 2 shows the principle of releasing rust 3 and 4.

After the moving body 8 moves in the direction indicated by the arrow, the wheel 5
When the wheel 1 is pulled up, the wedge 4 on which the wheel 1 is placed does not move, and only the wedge 3 moves S in the direction away from the wheel 2.
At the same time, the wheel 5 and the moving body 8 come into contact with each other. When the wheel 5 is further pulled up, the groove 10 of the moving body 8 in which the wheel 5 is placed is smaller at the top, so the wheel 5 and the side surface of the ft10 on the wheel 1 side come into contact.

Therefore, the moving body 8 is pushed in the direction in which the wheels 1 are separated from the wedges 4, and the wedges 4 are released from the wheels 1.

After the movable body 8 moves in the direction opposite to the arrow A, the above-mentioned wedges 3 and 4 are in the opposite position.

After the wedges 3 and 4 are released from the wheels, when the wheel 5 is raised while being guided by the wheel 5, the wedges 3 and 4 are also raised and moved horizontally by the link 6.7 connected to the wheel 5, and the wedges are moved horizontally. ' Rust 3.4 is in contact.

After the wedge 3.4 has come into contact, when the wheel 5 is further raised, the wedge 3.4 is lifted away from the rail 9 and stops contacting the lower end 10a of the groove 10. For this reason, wedge 3. 4 does not come into contact with the rail 9. FIG. 3 shows this state.

The means for pushing down or pulling up the wheel 5 is, for example, a piston or a piston provided between the moving body 8 and the wheel 5.
Cylinder device can be adopted. .

In this way, by pushing up the wheel 5, the moving body rests on the wedge (the rust does not come out from the moving body).
The wedge is removed relatively easily because the horizontal force generated between the moving object and the wheel is used to move the moving object in the direction away from the wedge and then remove the wedge. It is something that can be done. At the same time, since four rusts are used to prevent moving objects from running away, it can also be used for embedded rails. Moreover, it is possible to produce an escape prevention device with a simple mechanism and a large capacity at a low cost.

〔Effect of the invention〕

According to the present invention, it is possible to provide a run-away prevention device that can be used in embedded rails, has a simple mechanism, and is inexpensive.

[Brief explanation of the drawing]

FIG. 1 is a front view of the device according to an embodiment of the present invention when the stopper is in operation, FIG. 2 is a front view of the device 'u shown in FIG. 1 after the stopper release operation has started, and FIG. is the first
FIG. 3 is a front view showing the state of the device shown in the figure at the end of the stopper release operation. 1.2...Wheel, 3,4...Wedge,
5...Wheel, 6.7...Link,
8...Moving object, 9...Rail, lO...
・Mizo＼21

Claims (1)

[Claims] 1. In a moving body that runs on wheels on rails, a groove is provided on the moving body at a position between a pair of wheels with the guiding direction directed in the vertical direction, and the groove is smaller on the upper side. The wheel is provided to move up and down in the groove by a vertical movement means, and when the wheel is located on the lower end side of the groove, there is a gap between the wheel and the inner surface of the groove on the running direction side, and the wheel contacts the groove on the upper side. A runaway prevention device for a moving object, characterized in that two links are suspended from the wheel in a V-shape, and a wedge is provided at the tip of each link to be located between the rail and the wheel.