JPS6328282Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a chain entrainment prevention device for a chain hoisting parking machine.It completely prevents chain breakage and device damage due to chain entrainment, ensures safety, and is more compact. , the structure is simple and inexpensive.

In the case of a parking machine that uses a chain to raise and lower a pallet on which a car is parked, the chain for raising and lowering is suspended from a hoisting sprocket that can rotate forward and backward.

In the above-mentioned parking machine, the chain for lifting and lowering is suspended on the hoisting sprocket and suspended at the release part, and a weight etc. is provided at the lower end of the chain, but often the chain is wrapped around the hoisting sprocket and released. If the weight is not lifted up, the weight may become entangled in the hoisting sprocket, which is extremely dangerous as it may cause a chain breakage accident or damage to other equipment.

The present invention eliminates the above-mentioned drawbacks, and one embodiment thereof will be described in detail below with reference to the drawings.

1 and 2 show an example of a chain hoist parking machine using the present invention.

That is, it is installed to raise and lower an elevating body a consisting of an upper pallet 1 and a lower pallet 2 into an underground pit b, and the elevating body a is moved up and down by chains 7,
7a, 7b, and 7c.

To explain in detail, walls 4, 4a are constructed by excavating a width slightly wider than the length of the car, and the walls 4, 4a are made of concrete or the like on both sides and have a length corresponding to the number of consecutive walls. Cross beams 5, with an interval of
5a is suspended and both ends thereof are fixed to the walls 4, 4a.

Next, an elevating body a consisting of an upper pallet 1 and a lower pallet 2 connected approximately near the four corners by struts 6, 6a, 6b and 6c of appropriate length is arranged between the cross beams 5 and 5a.

Furthermore, the lower pallet 2 constituting the elevating body a
Lifting chains 7, 7 are installed at approximately the four corners of the
One ends of a, 7b and 7c are fixed.

In the case of the drawing embodiment, the lifting chains 7, 7
A, 7b and 7c are not fixed completely, but are fixed via an adjuster star 8 for length adjustment.

9 in the figure is a chain guide.

Next, the lifting chains 7, 7a, 7b and 7
c respectively the cross beam 5 above the chain guide 9,
5a, specifically guide sprockets 10, 10a, 10b and 1.
0c and are respectively suspended on winding sprockets rotated by a forward and reverse rotation motor 11, so that they can be evenly wound up and rewound.

In the case of the embodiment shown in the drawings, a drive shaft 12 is provided between one end of the cross beams 5 and 5a, that is, at a position that does not interfere with the elevation of the elevating body a, and the guide sprockets 10, 10a, 10b and 1 are provided at both ends of the drive shaft 12.
Hoisting sprockets 13, 13 on which lifting chains 7, 7a, 7b and 7c suspended on 0c are suspended.
A, 13b, and 13c are provided, and a drive sprocket 14 is fixed at a proper position on the drive shaft 12, and a chain 16 is suspended between the drive sprocket 14 and a sprocket 15 of the drive shaft of the forward/reverse rotation motor 11.

The forward and reverse rotation motor 11 is equipped with a speed reducer and a brake, and the lifting chains 7, 7a, 7b and 7c hoisted by the hoisting sprockets 13, 13a, 13b and 13c are placed in the underground pit b as they are. It is made to hang down, and a weight or the like (not shown) is further provided at its lower end.

In the parking machine with the above configuration, the lifting chains 7, 7
a, 7b and 7c and winding sprocket 1
3, 13a, 13b and 13c are subjected to a large load, and as shown in FIG. Winding sprocket 1
3, 13a, 13b, and 13c.

If the entrainment occurs, the lifting chains 7, 7
The device may be damaged due to cutting of a, 7b, and 7c, tilting of the elevating body a, falling, etc., which is extremely dangerous.

Therefore, in the present invention, as shown in FIGS. 3 and 4, lifting chains 7b and 7c (lifting chains 7 and 7a
same) chain link plate 7b' of the release part,
A vertically long plate 17 is provided at the vertical passage position of 7c' from the frame and guides the lifting chains 7b and 7c downward.

In the case of the embodiment shown in the drawings, the vertically long plate 17 is connected to the link plate 7 of the two elevating chains 7b and 7c.
b', 7c' thickness, and winding sprocket 1
One piece is disposed between 3b and 13c, and is configured to prevent the two lifting chains 7b and 7c from being caught at the same time, and is also inclined downward in the direction in which the lifting chains 7b and 7c are fed out.

Of course, the longitudinally elongated plate 17 may be provided at the open portions of the lifting chains 7, 7a, 7b, 7c suspended on the hoisting sprockets 13, 13a, 13b, 13c, respectively.

In the figure, 18 indicates the winding sprocket 13,
It is an idle roller provided close to 13a, 13b and 13c, and is
b and 7c are hoisting sprocket 1 due to load.
3, 13a, 13b and 13c so that they do not come off the tips of the teeth.

That is, the lifting chains 7, 7a, 7b and 7
This was provided because if the winding sprockets 13, 13a, 13b, and 13c are not suspended for a certain length, they may come off the tips of the teeth when a load is applied, which is dangerous. It is extremely safe as it can prevent the lifting chain from getting caught up or coming off.

The present invention having the above structure is provided with a vertically long plate that is installed from the frame and guides the lifting chain downward at a vertical passing position of the chain link plate of the lifting chain release part suspended on the hoisting sprocket. 3. As shown in Figure 3, the chain is guided downward by the plate and is smoothly separated from the hoisting sprocket, so that it does not get caught up in the hoisting sprocket, completely preventing the chain from breaking, damaging the equipment, etc., and ensuring safety. Furthermore, the structure is simple and can be provided at low cost.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a perspective view of the main parts of a chain hoisting parking machine, and FIG.
3 is a side view of the hoisting sprocket, FIG. 4 is a front view of the hoisting sprocket seen from the direction of arrow A to A in FIG. 3, and FIG. 5 is a conventional hoisting sprocket. FIG. 1... Upper palette, 2... Lower palette,
7, 7a, 7b, 7c...lifting chain, 10,
10a, 10b, 10c... Guide sprocket, 13, 13a, 13b, 13c... Winding sprocket, 17... Vertically long plate.

Claims (1)

[Scope of utility model registration request] A chain hoisting type parking machine, characterized in that a vertically long plate is provided from the frame and guides the hoisting chain downward at a position where the chain link plate of the hoisting chain release part suspended on the hoisting sprocket passes in the vertical direction. Chain entanglement prevention device.