JPS6140827B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in an elevating device for transporting parking pallets from a horizontal circulation type parking facility provided on an upper floor or basement to an entrance provided on the first floor. .

Conventionally, for example, a large number of parking pallets with wheels for movement at the four corners are arranged in two rows and moved alternately vertically and horizontally so that there is always an empty space at one end of each row. However, these parking spaces are formed in one or multiple layers on the upper or basement floors, and the parking pallets are carried in and out of the parking lot using a lift device mounted on the first floor. It had been.

In this case, two rails are provided on the lift main body to match the rails provided on the parking space side when the lift is stopped at a predetermined position, so that parking pallets can be transferred to each other, and the lift lifting mechanism is not limited in stroke. A chain sprocket system is generally used because it is free from damage and requires low equipment costs.

However, since the load on the lift body is approximately 2 tons including vehicles and parking pallets, the lifting chain will have a considerable length when fully loaded, and the lifting chain will need to be guided when the lift is raised or lowered. Distortion also occurs in the guide column. Therefore, due to the influence of both of these factors, there is a step between the rail on the lift body side and the rail on the parking device side due to a considerable height difference between the no-load state and the full-load state. The wheels generate an impact sound when passing the step.

Although the difference in height can be reduced by further increasing the strength of the chain, guide column, lift body, etc., the equipment cost will increase considerably.

The present invention has been developed in view of the above-mentioned current situation, and the rail provided on the lift main body side has a fulcrum near the parking device part, is restricted to an appropriate angle by stoppers provided at the left and right ends, and tilts downward toward the side opposite to the parking device when the lift is unloaded. It is vertically swingable, and movable side and fixed side locking devices are provided on each side of the lift body and the parking device section so that they can be engaged and disengaged, and when both locking devices are engaged, the rails on the lift body side can be connected. The opposing ends of the horizontal rails on the parking device side are aligned, and the transfer of the parking pallet between the parking device and the lift body is performed with the locking devices engaged, so that the lift side rails are aligned with the parking device. The present invention relates to a lifting device for a horizontal circulation type parking facility, which is intended to prevent the occurrence of a level difference in a connecting portion by tilting upward or downward using a side end as a fulcrum.

To explain in detail based on the embodiment shown in the figure, reference numeral 1 denotes a known horizontal circulation parking device located in an upper parking space _S1 and a lower parking space _S2 formed in the basement.
A metal fitting connects a parking pallet 5 which is horizontally circulated by an appropriate drive device (not shown) on each of two vertical rails 3 and two horizontal rails 4 arranged in a rectangular shape using moving wheels 2 provided at four corners. A large number of rows 6 and 7 are connected in the horizontal direction, and one end of each row facing each other is left as an empty space.

8 is a hoistway formed on the side of one parking row,
The upper part communicates with an entrance 9 formed on the ground.

Reference numeral 10 denotes a lifting device installed in the hoistway 8, in which a lift guide column 11 made of an H-shaped member and a balance weight guide column 12 made of an L-shaped member are erected in parallel at the front and rear of the hoistway wall on the side opposite to the parking device. Upper and lower guide wheels 13 and 14 are arranged diagonally at appropriate intervals on the front and back surfaces of the lift guide column 11, respectively, and upper and lower guide wheels 13 and 14 are arranged diagonally on the front and back surfaces of the lift guide column 11, and the upper and lower guide wheels 13 and 14 are arranged diagonally on the front and back surfaces of the lift guide column 11, respectively, and the upper and lower guide wheels 13 and 14 are arranged diagonally on the front and back surfaces of the lift guide column 11 at appropriate intervals. A lift main body 17 having upward and downward prevention members 15 and 16.
is arranged so as to be movable up and down along the guide column 11, and is pivotally supported on the lift body 17 so as to be swingable in the up and down direction with a bracket 18 having a fulcrum near the right end (end on the side of the parking device 1). , a rail 2 whose swing range is limited by a U-shaped stopper 19 on the left end side and a protruding stopper 20 on the right end side.
1 are arranged in the front and back so that when the lift body 17 is stopped on the side of the parking device 1, it almost coincides with the horizontal rail 4 on the side of the parking device, and furthermore, a rod that faces the parking device side and can move forward and backward by electromagnetic force is provided. A movable side stopper 22 with
It is configured to be able to be raised and lowered by a drive mechanism 24 connected to the.

25 is a fixed side locking device fixed to the side of the lifting device 1 and the floor side of the entrance/exit 9, which has a flap-like opening toward the lift side, and is stopped at the side to allow the rod portion to advance. It is arranged with a hole that can be engaged with the movable side locking tool 22.

In normal conditions, the rail 21 is supported on the stopper 19 side due to the deflection of the bracket 18, but when a large load is applied to the right side of the bracket 18, it swings to the right and is supported by the stopper 20. Ru. Further, when the lift main body 17 is in a normal ascending and descending state, the fall prevention members 15 and 16 are slightly separated from the guide pillars due to the contact of the guide wheels 13 and 14 with the front and back surfaces of the guide pillar 11, allowing the lift main body 17 to freely move up and down. However, if a force acts in the direction of pushing the right end side of the lift body 17 upward, downward teeth are formed on the surface so as to contact the front and back surfaces of the guide column 11 and prevent the lift body 17 from descending. be. At this time, at least the lower guide wheel 14 is spaced apart from the guide column 11.

Next, the operation when the vehicle enters and leaves the warehouse will be explained. First, the empty lift main body 17 stops on the side of the parking device 1, and the movable side locking tool 22 moves forward to engage with the fixed side locking tool 25. At this time, the right end of the rail 21, whose left end is supported by the stopper 19, is stopped at the same height as the extended end of the horizontal rail 4 by a suitably provided limit switch (not shown).

When the left wheel 2 of the parking pallet 5 on which a vehicle is mounted from the parking device 1 side rides on the rail 21, the rail tilts once to the right, but the wheel 2
After passing through this section, it gradually slopes back to the left. On the other hand, the lift body 1 has moved from a no-load state to a loaded state.
7 tries to descend slightly due to elongation of the chain and distortion of the guide column 11, but the locking tools 22, 2
Since the right end side is supported by the engagement of 5, only the left side descends using the engagement point as a fulcrum, and the rail 2
1 and the extended end of the horizontal rail 4 without any difference in level, the right wheel 2 is passed through, resulting in the state shown in FIG. _L1 shown in the figure is the amount of descent of the lift body 17 at the bracket 18 portion.

Next, when transferring the parking pallet 5 with vehicles mounted on the lift body 17 to the parking device 1,
At this time, the lift main body 17 stops the rail 21 in alignment with the extension of the horizontal rail 4 with the chain under the mounting extended. After the locking tools 22 and 25 are engaged, when the parking pallet 5 mounted on the parking device 1 is pulled toward the parking device 1 by the driving force on the parking device 1 side, the wheels 2 on the right side of the pallet ride on the horizontal rail 4 and the wheels 2 on the left side
When the rail 21 moves to the right side from the bracket 18, the load on the lift body 17 is halved and the load point moves, causing the rail 21 to tilt to the right side and be supported by the stopper 20, and the chain elongation is restored and the locking tool 2
2 and 25, the lift main body 17 is tilted in a direction in which the left side rises with the right end of the rail 21 as the center (see FIG. 6). Therefore, the left wheel 2 also passes over the rail connecting portion without a step and is transferred to the parking device 1 side, and the remaining lift main body 17 becomes in a step state with the rail 21 supported on the stopper 19 side. _L2 shown in FIG. 6 is the amount of rise of the lift body 17 at the bracket 18 during the transfer.

Figure 7 shows the lift body 1 as shown in Figure 5 above.
This shows a case where the suspension chain breaks due to a shock or the like during the transfer as soon as the parking pallet 5 loaded with vehicles is transferred onto the lift body 17.
further tilts downward to the left around the engagement point of the locking tools 22, 25, thereby causing the fall prevention member 1 to
5 and 16 bite into the front and back surfaces of the guide column 11, and the lift main body 17 is held in that position by three-point support with the engagement point of the locking tool, and is prevented from falling. However, in this case, each parking pallet 5 connected on the parking device 1 side through the connection by the connecting fittings 6 and 7 also plays a part in preventing the pallet from falling. 7th
_L3 in the figure is the amount of descent of the lift body at the bracket 18 in the fall prevention state. .

Incidentally, the above-mentioned fall prevention effect is similarly effective when a vehicle rides on the empty pallet at the loading/unloading port 9.

In addition, the movable side locking tool 22 and the fixed side locking tool 25 in the above description can be similarly implemented even if they are arranged on opposite sides, and the structure of the locking tool is not limited to the above-mentioned structure. Any other known means may be used as long as it can hold the rail joint 17 and prevent the rail joint from shifting in the vertical and front-back directions.

As detailed above, when using the lifting device according to the present invention, it is possible to prevent the difference in level that is likely to occur in the rail connection part due to the influence of the chain elongation due to the load difference between no load and full load on the lift body. This prevents noise by smoothing the passage of wheels when transferring parking pallets, and by adding a fall prevention member at a slight distance from the guide pillar surface on the opposite side of the guide wheels, we have made it possible to prevent the chain from collapsing. It is also possible to prevent the lift body from falling during cutting, and by adding a relatively simple structure, it is possible to obtain an extremely safe lifting device with less noise.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a side view of the overall arrangement, and FIG. 2 is a side view of the overall arrangement.
~ A plan view as viewed from arrow A, FIGS. 3 and 4 are enlarged detailed side views and plan views showing only essential parts, and FIGS. 5 to 7 are action explanatory views. In the figure, 1 is a horizontal circulation parking device, 2 is a moving wheel, 5 is a parking pallet, 8 is a hoistway, 10 is a lifting device, 11 is a guide column, 17 is a lift body, 19
is a U-shaped stopper, 20 is a protruding stopper, 21
indicates a rail, and 22 and 25 indicate locking devices on the movable side and the fixed side.

Claims (1)

[Scope of Claims] 1. A large number of parking pallets each having wheels for movement at four corners are disposed on the side of a parking device formed by circulating horizontally along vertical and horizontal rails arranged in a rectangular shape. The parking pallet is carried in and out of the garage by a lifting device that is lifted and lowered by a chain that engages with a sprocket provided in the pallet. The lift body has a set of two guide wheels that engage with the front and back surfaces of the guide column, and the lift body has a fulcrum near the parking device on the lift body, and the stoppers provided at the left and right ends limit the angle between the lift body as appropriate. It is composed of front and rear rails that can swing vertically and tilt downward toward the side opposite to the parking device when unloaded.
A movable side and a fixed side locking device are provided on opposite sides of the lift main body and the parking device section so as to be able to engage and disengage, and when the both locking devices are engaged at a predetermined stop position of the lift main body, the lift main body The front and rear rails on the side are arranged so that the opposite ends of the side rails provided on the side of the parking device match,
The parking pallet is carried in and out when both the locking devices are engaged.
Lifting device for horizontal circulation parking equipment. 2. The locking tool that engages with the lift main body side locking tool is also arranged on the side of the entrance/exit.
Lifting device for the horizontal circulation parking facility described in Section 1.