JPS6228602Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a device for preventing the trolley from falling off when the rail of the trolley conveyor is separated by a shutter or the like.

In trolley conveyors, it is sometimes necessary to separate the inside and outside of the shutter by dividing the rail with a shutter, such as a fire door, but conventional methods have been used to prevent the trolley from falling off when the rail is divided. Since there was no provision for the trolley, there was a risk that the trolley would fall off or fall from the divided section of the rail, causing damage to the transported object or the trolley.

Therefore, the object of the present invention is to provide a device that can prevent the trolley from falling off when the trolley rail is separated by a shutter or the like.
The first actuator is activated by the lowering of the shutter, etc.
a lever, and second and third levers that interlock with the lever, and when the second lever rotates, the divided rail can be freely rotated around the pin, and the end thereof projects upward from the upper surface of the rail. is used as the first stopper, and the second stopper is moved in the direction of contact with the main body rail by rotation of the third lever, so that the stopper is provided against the trolley traveling from both left and right directions. It is characterized by

Hereinafter, an embodiment of the present invention will be described based on the accompanying drawings. In FIGS. 1 to 3, 10 is a main body rail, and a trolley (not shown) runs guided by this rail. Reference numeral 11 is a dividing rail, and when it rotates around the pin 12, its end 1
1a becomes the first stopper.

The shutter is designated by the symbol S in FIG. 1, and when the shutter S is lowered, the device of the present invention is activated. Three levers 15, 16, 1 that rotate in conjunction with a pin 14 fixed to the frame 13
7, the first lever 15 detects the lowering of the shutter S and transmits it to the other two levers 16 and 17, and the second lever 16 detects the lowering of the shutter S.
The third lever 17 is for operating the second stopper.

The tip 16a of the second lever 16 is normally engaged with a protrusion 18, and the protrusion 18 is connected to the ejection pin 1.
It is integrated with 9. The entry/exit pin 19 slides within a space 20 provided in the main body rail 10, and its tip is normally inserted into the space 21 provided at the end of the divided rail 11, thus engaging both rail parts. ing. Reference numeral 22 denotes an elongated hole provided on the lower side of the main body rail 10, and the projecting piece 18 can freely move left and right through this elongated hole 22. 23 is entry/exit pin 1
This is a spring for pressing 9 in the left direction, that is, in the exit direction.

The second stopper 24, which is actuated by the third lever 17, whose structure is clearly shown in FIG. The rotation is performed by the tip of the lever 17, and the clockwise rotation is performed by the stopper 26.
is stopped by.

Next, to explain the operation of the device of the present invention, when the shutter S shown in FIG.
hits the first lever 15 extending in the horizontal direction and pushes it down (see the dashed line). Therefore, the second lever 16 that is interlocked with this is also rotated to the position shown by the dashed line, and this causes the ejection pin 19 to move toward the spring 2.
3 and sinks into the space 20 in the main body rail 10, so that the divided rail 11 becomes free to rotate around the pin 12, and rotates due to gravity, as shown by the two-dot chain line in Fig. 1. As shown, it is almost upright. Therefore, the other end 11a of the divided rail 11 projects upward from the upper surface of the rail and serves as a stopper for the trolley traveling from the left.

On the other hand, since the third lever 17 moves upward from the position shown in FIG.
rotates counterclockwise due to gravity, and assumes the position shown by the two-dot chain line in the figure, where its tip abuts against the main body rail 10. This second stopper 24 serves as a stopper for the trolley traveling from the right direction in FIG.

In Figure 1, the position of each lever indicated by the two-dot chain line is
Furthermore, the corresponding positions when the shutter S is lowered are shown.

When the shutter S returns to the upper position, the lever is manually returned to the state shown by the solid line in Figure 1. However, if you forget to return the lever to its original state when the shutter S returns to its original position, Needless to say, the present invention functions as a device for preventing the trolley from falling off.

5 and 6 show another embodiment of the second stopper. The same reference numerals as before indicate the same members. The tip of the third lever 17 is guided by a roller 30 in the middle, and a wire 31 is connected to the second lever.
A stopper 32 is attached. The second stopper 32 is a guide 3 fixed to the frame 13.
3 in the vertical direction. It is clear that when the lever 17 is raised, the stopper 32 is lowered and, similarly to the first embodiment, descends in the direction of contact with the main body rail 10 and becomes a stopper for the trolley.

Since the present invention is constructed as described above, it is effective in reliably preventing the trolley from falling off when the rail is divided by a shutter or the like.

[Brief explanation of drawings]

Figure 1 is a partially sectional front view, Figure 2 is
Figure 3 is a sectional view taken along lines 2-2 and 3-3 in Figure 1, Figure 4 is a top view of the divided rail, Figure 5,
FIG. 6 is a front view and a side view of another embodiment of the second stopper. 10...Main rail, 11...Divided rail, 1
5...First lever, 16...Second lever, 1
7...Third lever, 24...Second stopper.

Claims (1)

[Claims for Utility Model Registration] (1) A first lever that is activated by lowering a shutter, etc.; a second lever that is interlocked with the lever;
The dividing rail is provided with a third lever, and when the second lever is rotated, the divided rail is freely rotated around the pin, and an end thereof that projects upwardly from the upper surface of the rail is used as a first stopper. A device for preventing a trolley from falling off when a rail of a trolley conveyor is separated, characterized in that a second stopper is moved in a direction of contact with a main body rail by rotation of a lever. (2) The device for preventing a trolley from falling off when a rail of a trolley conveyor is separated according to claim 1, wherein the second stopper is rotatable around a pin. (3) The device for preventing a trolley from falling off when the rail of a trolley conveyor is divided, as set forth in claim 1, wherein the second stopper is guided by a guide and moves in the vertical direction.