JPH06329367A - Coupling structure for elevation table with counterweight - Google Patents

Abstract

PURPOSE:To prevent the left-and-right inclination of an elevating/sinking table by mounting a swing lever in its middle on a counterweight in such a way as swingable like a seesaw up and down, coupling flexible coupling cables with the left and right sides of the elevating/sinking table, and coupling the other ends of the flexible coupling cables with the two ends of the swing lever. CONSTITUTION:In the upper part of a counterweight 34 arranged as rising and falling along a pair of guide rails 33 in the vertical direction installed on one side of a building equipped on an elevating/sinking device, a swing lever 35 is furnished in the middle in the longitudinal direction as capable of making seesaw swings vertically while the longitudinal direction is set fore and aft. At one end of the swing lever 35, the other end of a flexible coupling cable 37 is coupled, being coupled with the left side of an elevating/sinking table. At the other end alike, the other end of flexible coupling cable 37 is coupled, being coupled with the right side of the elevating/sinking table. The coupling positions of the two flexible coupling cables 37. 37 are arranged symmetrical about the center of swinging of the swing lever 35.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting structure for a lift and a counterweight.

[0002]

2. Description of the Related Art Heretofore, the following structure has been known as a connecting structure for an elevator and a counterweight of this type. That is, the left and right flexible connecting lines (including wires, chains, etc., which are connected to the left and right sides of the elevating table) are connected to one counterweight guided by the guide rails so as to be able to move up and down. It is known that each end is connected.

[0003]

Disadvantages of the Prior Art The conventional connection structure has the following disadvantages. That is, since the left and right flexible connecting cords are connected to one counterweight, if only one of the left and right flexible connecting cords extends, the other flexible connecting cord alone will raise and lower the lifting platform. Since it is in a suspended state, the lift will tilt to the left and right, which is dangerous, and if not, the lift will be guided by the guide rails while tilting to the left and right, so that the lift can be smoothly moved up and down. There was a drawback that was blocked.

[0004]

[Means for Solving the Disadvantages] The present invention adopts the following means in order to eliminate the above disadvantages. According to the present invention, the counterweight is provided with a rocking lever so that the seesaw can rock vertically in the middle of its length, and one end of the rocking lever is provided with an end of a flexible connecting cord connected to the left side of the lifting table. In addition to being connected, the other end of the swing lever is connected to the end of the flexible connecting cable connected to the right side of the lift.

[0005]

The present invention has the following functions. An end of a flexible connecting line connected to the left side of the elevator is connected to one end of an oscillating lever that is vertically swingably provided on the counterweight, and the other end of the oscillating lever is attached to the other end of the oscillating lever. Since the ends of the flexible connecting cords connected to the right side are connected, even if either one of the left and right flexible connecting lines extends, the extension is absorbed by the swing lever swinging. Since the elevating table is always hung evenly by the flexible connecting lines on the left and right sides, it is possible to prevent the elevating table from tilting left and right.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on the embodiments shown in the drawings. In this specification, the front means the upper side in FIG. 1, the rear means the lower side in FIG. 1, the left means the left side in FIG. 1, and the right means the right side.

A pair of front and rear rack devices 3 are erected and housed in a building 2 having a rectangular plan shape and a high height so as to open a lift passage 12. The rack device 3
Is higher than the left and right main columns 4 of the building 2, the left and right rack columns 5 on the side of the elevator passage 12 side by side in the front-back direction, and the left main column 4 and the same rack column 5. A large number of pallet bearing bars 7 that are passed at a predetermined interval in the vertical direction
And a pallet support bar 7 passed to the right main support column 4 and the rack support column 5 so that the upper surfaces of the left pallet support bars 7 are flush or nearly flush with each other. The car storage shelves 8 are constituted by the pallet support rails 7 that form a pair on the left and right. Of the whole vehicle storage shelves 8, one-fifth or less of the upper car storage shelves 8, for example, the car storage shelves 8 from the top to the third are used as the high-roof vehicle shelves 8B, and the remaining car storage shelves. 8 is an ordinary passenger car shelf 8A. The high-roof vehicle 1B has a vehicle height of 1 such as recreational vehicles (RV vehicles) and light vans.
It means a car with a high vehicle height of more than 550 mm and 2000 mm or less, and the ordinary passenger car 1A means a passenger car with a vehicle height of 1550 mm or less. Note that, in the following description, a normal passenger car shelf 8A and a high-roof car shelf 8B will be referred to as a car storage shelf 8 unless otherwise specified.
As described below.

On the left and right pallet support bars 7, that is, on each of the car storage shelves 8, rectangular car pallets P that are long in the left-right direction are placed. Vehicle 1 (In the following description, vehicle 1 is a normal passenger vehicle 1A and a high roof vehicle 1
Both of them will be described as a vehicle 1 unless they are used as a superordinate concept to B and must be described with special distinction between them. ) Is placed on a pallet P as will be described later in detail, and is parked on the car storage rack 8 (normal passenger car rack 8A or high roof car rack 8B).

A space 15 is provided above the floor 15 of the building 2, and the car 1 enters the storage space 16 through the front storage port, and the storage space 16 passes through the storage space. Car 1 is set to leave. The floor 15
An opening 1 through which an elevator 25 to be described later passes in the central part of the
7 are formed. Also, below the floor 15, there is a pit 1.
8 is formed, a known lifting device 19 is installed at the bottom of the pit 18, a known horizontal turning device 20 is installed on the lifting frame of the lifting device 19, and a plane-shaped rectangle is formed on the rotating body of the horizontal turning device 20. The turntable 21 is attached so that it can pass through an opening 26 formed in a horizontal portion 25a of a lift table 25 described later. With such a structure, the turntable 21 can be raised and lowered and horizontally swiveled.

A pair of left and right long guide rails 24 are provided on the left and right sides of the building 2 facing the elevator passage 12, and an elevator platform 25 is provided along these guide rails 24 by an elevator device 31 as described below. It can be raised and lowered. As shown in FIGS. 5 and 6, the elevating device 31 has a counterweight 34 that is vertically movable along a pair of vertically long guide rails 33 provided on the left side of the building 2. This counterweight 34
At the upper part of the swing lever 35, in the middle of its length,
The seesaw is swingably provided up and down with its longitudinal direction oriented in the front-rear direction, and one end of this swing lever 35 is connected to an end of a flexible connecting cable 37 connected to the left side of the lift 25. , The other end of the rocking lever 35, the left lifting table 2
The ends of the flexible connecting cords 37 connected to the right side of 5 are connected. The connecting position of the flexible connecting rope 37 is symmetrical with respect to the swing center of the swing lever 35. Although not clearly shown in the drawing, each of the left and right flexible connecting ropes 37 is composed of a plurality of wire ropes. When viewed from the counterweight 34 side, the left and right flexible connecting ropes 37 are hung on the wheel 38, the drive wheel 39, and the wheel 40 in the listed order, and then connected to the lift table 25. As described above, since the flexible connecting rope 37 is composed of a plurality of wire ropes, the wheel 38, the drive wheel 39 and the wheel 40 also have a plurality of wire rope grooves. There is. The drive wheel 39 is fixed to a drive shaft 42 which is rotated by a motor capable of rotating in the normal and reverse directions. With the configuration as described above, even if one of the left and right flexible connecting ropes 37 extends, the extension is absorbed by the swing lever 35 swinging, and the left and right flexible connecting ropes 37 are always absorbed. Thus, the lifting table 25 can be hung evenly, and the lifting table 25 can be prevented from tilting left and right. In addition, in practice, the wheel 3
Since the frictional force between the flexible connecting cable 37 and the like is large, the expansion of the flexible connecting cable 37 may not be smoothly absorbed. To prepare for such a situation,
A leveler (not shown) that emits a signal indicating that the leveler 5 is tilted is mounted, and an alarm is issued based on a tilt signal from the leveler (not shown). When the alarm is issued, the person in charge of maintenance receives the lift 2
5 is lowered and placed on a stopper 44 (see FIG. 3) provided in the lower part of the pit 18, and in that state, the lifting table 25
To stop. By doing so, the flexible connecting cable 37 is pulled by the counterweight 34 so that the extension of the flexible connecting cable 37 can be reliably absorbed by the swinging of the swing lever 35.

An opening 26 through which the turntable 21 passes is formed in a horizontal portion 25a of the lift table 25. A pair of left and right slide forks 27 that operate in synchronization are provided on the left and right portions of the horizontal portion 25a so as not to block the opening 26 and horizontally projectable in either the front or rear direction by a known sliding mechanism. ing. Needless to say, the pallet P has a size to be mounted on the lift table 25. The slide fork 27 causes the pallet P on the car storage rack 8 to project downward, lift the pallet P by raising the lift table 25, and retract the pallet P to the lift table 25 side. Then, the pallet P can be lowered onto the car storage rack 8 by the reverse operation. As is apparent from this description, the height of the car storage portion of the car storage rack 8 is the height of the car 1 for the transfer operation of the pallet P to the car storage rack 8 and the thickness of the pallet P. And allowance (play) is taken into consideration. It should be noted that if a so-called push-pull mechanism that clamps the pallet P and pushes or pulls the pallet P is used as the vehicle transfer device, the pallet P can be delivered to the vehicle storage rack 8 for operation. Since the height of the vehicle storage shelf 8 is not required, the vertical interval of the car storage rack 8 can be reduced. Needless to say, the slide fork 27 does not collide with or interfere with the pallet support bar 7, the turntable 21, or the like.

[0012]

Operation of the Embodiment Next, the operation of the embodiment will be described. First,
The case of parking will be described. When the parking start signal is issued, the following operation is automatically performed. The elevating table 25 moves up and down toward the car storage rack 8 having an empty pallet P, and stops when the upper surface of the slide fork 27 is located slightly below the lower surface of the pallet P. Then, the slide fork 27 projects to the lower surface of the pallet P. After that, the slide fork 27 lifts the pallet P by raising the lift table 25 slightly. Then, the slide fork 27 retracts, so that the pallet P is placed on the lift table 25. After that, the elevating table 25 descends and reaches the lowest position where the upper surface of the slide fork 27 is flush with or slightly lower than the upper surface of the floor 15. At that time, since the turntable 21 is fitted in the opening 26, that is, in a state where the longitudinal direction is directed in the left-right direction and is in a raised state, the pallet P is automatically transferred from the slide fork 27 to the turntable 21. Transfer to. After that, the turntable 21 horizontally turns 90 degrees, and the longitudinal direction of the pallet P, which has been oriented in the left-right direction, is oriented in the front-rear direction. After that, the turntable 21 descends to place the pallet P on the floor 1.
It is in a state of being placed on 5. Then, the car 1 is put on the pallet P through the loading / unloading port. After that, the pallet P on which the vehicle 1 is placed can be stored in the vehicle storage rack 8 by performing the operation substantially opposite to the above. And by the operation almost opposite to the above,
Car 1 can be put out. It is needless to say that the front side of the car 1 is directed to the entrance / exit port when leaving the warehouse. The ordinary passenger car 1A is parked on the ordinary passenger car shelf 8A, and the high-roof vehicle 1B is parked on the high-roof vehicle shelf 8A.
Parked at B.

[0013]

The present invention has the following effects due to the above-mentioned configuration. An end of a flexible connecting line connected to the left side of the elevator is connected to one end of an oscillating lever that is vertically swingably provided on the counterweight, and the other end of the oscillating lever is attached to the other end of the oscillating lever. Since the ends of the flexible connecting cords connected to the right side are connected, even if either one of the left and right flexible connecting lines extends, the extension is absorbed by the swing lever swinging. Since the lifting table is always hung evenly by the flexible connecting lines on the left and right sides,
It is possible to prevent the lift from tilting left and right.

[Brief description of drawings]

FIG. 1 is a horizontal sectional view showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is an enlarged view of part A of FIG.

4 is a sectional view taken along line IV-IV of FIG.

FIG. 5 is a perspective view showing a connected state of a lift and a counterweight.

6 is an enlarged cross-sectional view taken along line VI-VI of FIG.

[Explanation of symbols]

 25 Elevating table 34 Counterweight 35 Swing lever 37 Flexible connecting cable

Claims (1)

[Claims] 1. A counterweight is provided with a rocking lever so that the seesaw can rock vertically in the middle of its length.
One end of the swing lever is connected to the end of the flexible connection cable connected to the left side of the lifting table, and the other end of the swing lever is connected to the end of the flexible connection cable connected to the right side of the lifting table. The connecting structure of the lift and the counterweight, which are connected to each other.