JPH0328675Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Application of the Invention) The present invention relates to a multi-level parking system, specifically a three-level multi-level parking system.

(Background of the invention) Various multilevel (generally two or three level) multi-level parking systems have been proposed for the purpose of effectively utilizing space. Japanese Utility Model Publication No. 55-4447, Japanese Utility Model Publication No. 55-14682,
Utility Model Publication No. 55-50287 is known.
These three-tier multilevel parking systems are arranged in parallel in rows, and among the upper, middle, and lower pallets that provide vehicle parking surfaces, the middle pallet is at the same height as the vehicle entry/exit ground. It is possible to move laterally (horizontally) in the direction in which the multiple multistory parking device is arranged in rows, and the upper and lower pallets can be raised and lowered independently in the vertical direction. In order to store the goods, the middle pallet located below the middle pallet is retracted laterally to form a space for the upper pallet to be lowered.

By the way, such a three-tiered parking device,
It has been pointed out that there are problems that need to be further improved in order to suitably apply the method to specific locations with various practical constraints and demands.

One of them is that the lifting means (elevating mechanism, drive device) of the upper and lower pallets of each multi-story parking device are
The point is that it is necessary to provide one for each pallet. This is because the raising and lowering of the upper pallet and the lower pallet are not carried out at the same time, but are carried out separately and independently. If a switching means such as a clutch is used, it is possible to use the lifting means for both the upper and lower pallets, but this increases the complexity of the structure due to the need to completely prevent the pallets from slipping down, etc.
This tends to increase costs and is not practical.

Another problem mentioned above is the miniaturization of multilevel parking systems, especially the shortening of the device in the direction of vehicle entry and exit.
This is a point that is strongly desired in order to expand the scope of practical application. This problem becomes even more serious in a multi-story parking system of the pallet rear cantilever type in which no support is provided at the vehicle entry/exit portion, since the structural members tend to become larger.

Furthermore, in the pallet rear cantilever type, in addition to the above, there is a risk that the upper and lower pallets may fall forward and tilt due to the weight of parked vehicles.

(Purpose of the invention) The present invention was made in order to solve the problems of the prior art as described above, and one of the purposes is to solve the problems of the prior art as described above. The purpose is to allow the lifting and lowering mechanism to be shared without using a clutch or the like, thereby reducing the number of parts, improving assembly workability, and reducing costs.

Another object of the present invention is to use a single common drive device (pump) to drive the lift pallets (upper and lower pallets) of multiple multilevel parking systems in parallel. The goal is to significantly reduce the cost of the entire equipment and reduce the number of parts.

Another object of the present invention is to achieve effective miniaturization by combining it with the above-mentioned improved lifting means, and to prevent the upper and lower pallets from tipping forward, thereby keeping the parked vehicle in a horizontal position. Can be held stably 3
It provides a tiered multilevel parking system.

(Summary of the invention) The feature of the three-tiered multilevel parking system of the present invention, which was made to achieve the above-mentioned object, is that the three-tiered multi-level parking system of the present invention has a plurality of rows of upper, middle and lower three tiers of vehicle parking pallets. Of these, the upper and lower pallets can be raised and lowered to a middle position facing the vehicle entrance/exit ground, and the middle pallet can be traversed and retracted in the row direction when the upper or lower pallet is raised or lowered. The structure is connected between the upper and lower pallets, and is supported by a structural frame that is connected to a column that fits into the rear end base of the upper and lower pallets to raise and lower them, and a beam that allows the middle pallet to move laterally. A double-acting hydraulic cylinder device for raising and lowering the upper or lower pallets separately by supplying and discharging pressure oil to both oil chambers, and a locking means for mechanically suspending the upper pallet at the upper limit position. , in a three-tier multi-level parking device assembled to a vertical support on the back side of the structural frame in the vehicle entry/exit direction,
A wire is stretched from the tip of each of the upper and lower pallets to the base of each pallet via at least a pair of pulleys fixed above and below the vertical and vertical limits of each pallet. A plurality of double-acting hydraulic cylinder devices are provided between each of the horizontally arranged upper and lower pallets so as to be able to expand and contract the vertical spacing. The structure is such that it is connected to a single lifting hydraulic pump via a valve.

In the above, the middle pallet that can be traversed at the height of the vehicle entrance/exit ground is generally provided one less than the number of rows of upper and lower pallets, and the empty space is used as a traversable middle pallet. Then, the upper pallet is lowered into the empty space, or the lower pallet is raised, and vehicles are moved in and out of these pallets. The upper pallet is lowered and raised between the upper limit position, where the vehicle is raised approximately 2 meters above the vehicle entry/exit ground, and the middle position, and the lower pallet is lower limit position, where the vehicle is buried in a pit excavated from the ground. rises between position and middle position,
be lowered.

In addition, the structural frame used in this invention is F when viewed from the side section (section perpendicular to the row direction)
The lower end of the leg and the tip of the lower horizontal arm are often fixed to the inner wall of the pit, reducing the cross-sectional shape of the vertical support.
In particular, by providing a truss at the end of the structural frame in the row direction to regulate the deflection of the tip of the upper horizontal arm,
The objectives of the invention are preferably achieved.

Further, suspending means such as wire ropes are provided between the tips of the upper pallet and the lower pallet and the base ends of the upper pallet and the lower pallet, respectively, and these suspending means are connected to a plurality of pulleys provided on the structural frame. The purpose of the present invention is to suspend the tips of the upper and lower pallets by tensioning them when they move up and down to the middle position, as well as when they are in their normal positions. preferably achieved.

Note that a vertical support may be provided between the tip of the upper horizontal arm and the vehicle entry/exit ground, located in the middle of the row direction within a range that does not hinder vehicle entry/exit. The upper horizontal arm of the structural frame is configured as a rigid frame or truss.

(Embodiments of the invention) The invention will be described below based on embodiments shown in the drawings.

FIG. 1 is a front view for explaining the overall outline of a three-tier multilevel parking system to which the present invention is applied. In the figure, 2 is a pit excavated into the ground 1,
indicates a structural frame, and 4 is a guide rail extending in the longitudinal direction of the structural frame 3 at a position approximately at the same height as the ground 1. In this example, six middle pallets 5, 5... (move in the direction of the arrow).

Reference numeral 6 denotes a lower pallet, which is provided to be raised and lowered by a lifting means (not shown) between the bottom position of the illustrated pit 2 and the middle pallet position. Reference numeral 7 designates an upper pallet, which is provided to be raised and lowered by a lifting means (not shown) between the illustrated upper position and the middle pallet position.
In FIG. 1, the rightmost one among the seven upper pallets is shown lowered into a vacant space where the middle pallet 5 is not present.

In such a three-tier multilevel parking system, vehicles can enter and leave the middle pallet 5 at any time, and the upper pallet 7 can enter and leave the lower pallet 6 at any time.
The middle pallet below (or above) the location where the vehicle is to be taken in and out is moved sideways by the middle pallet to create an empty space, and the upper pallet (or lower pallet) is placed in this empty space. It is sufficient to lower (or raise) the vehicle to enter and exit the warehouse at the middle position.

Fig. 2 shows the skeleton of an example of the structural frame 3 used in the present invention, and is perpendicular to the pit 2 shown by the chain line in the figure from the bottom of the pit to the back side in the vehicle loading/unloading direction shown by the arrow in the figure. A pillar (hereinafter referred to as the rear pillar 8) is erected, and a lower arm (hereinafter referred to as the stay 9) is erected horizontally from the middle position of this rear pillar 8 to the front wall of the pit. An upper horizontal arm (hereinafter referred to as an upper rigid-frame beam 10) of a ladder-like rigid-frame structure extending parallel to the stay 9 is fixed, and a front column 10' and diagonal members are attached to both ends of the upper rigid-frame beam 10 in the longitudinal direction. The entire structural frame is formed by assembling a side truss 10 including 10''.Furthermore, if necessary, reinforcement may be provided such as fixing the tip of the rear column 8 and the stay 9 to the rear wall.

Such a structural frame 3 supports the weight of the upper, middle, and lower pallets and has a rigid structure suitable for withstanding earthquakes, etc. Therefore, the cross section of each structural unit such as the rear column 8 etc. can be made small enough.

Note that the structural frame of the present invention is not limited to this example.

Figures 3, 4, and 5 A to D show the specific configuration of the three-tier multilevel parking system using the above structural frame 3 and the movement of each of the upper, middle, and lower three tier pallets. This is an explanatory diagram, and the upper pallet 7 and the lower pallet 6 are assembled and supported by the rear pillar 8 so as to be movable up and down as follows. That is, each of the pallets 6 and 7 forms a planar vehicle parking deck with side frames 11 and 12 and plates 13 and 14 installed between these side frames, and the rear ends of these side frames 11 and 12 are firmly fixed to the sliders 15 and 16. Further, the side frames 11, 12 and the sliders 15, 16 are fixed by appropriate reinforcing members 17,
Reinforced by 18. This slider 15, 16
As shown in Fig. 4, the shoe 20 can be slid up and down without rattling by fitting the recesses of the shoe 20 into the slide rails 19 fixed to the front and rear surfaces of a rectangular column that is elongated with respect to the vehicle entry/exit direction. It is assembled like this.

The sliders 15 and 16 have a channel shape that covers part of the front and rear surfaces of the rear column 8 from the side, and adjacent slides share one rear column and move the stay 9 through the gap between them. It is designed to be fixed to the rear pillar 8.

Reference numeral 21 denotes a double-acting hydraulic cylinder device (hereinafter simply referred to as a hydraulic cylinder) assembled to connect the upper slider 15 and the lower slider 16. In this example, the upper end of the cylinder body 21' is connected to the upper slider 15. The lower end of the piston rod 21'' is connected to the lower slider 16. Also, at the upper end of the cylinder body 21', a hook is provided to fixedly suspend the hydraulic cylinder 21 at the upper limit position. A pin 22 is assembled for this purpose.

The hook 23 is fixed to the upper end of the rear column 8 with a bolt or the like, and is provided so that it can be swung by a solenoid or a hydraulic cylinder (not shown). The engagement is disengaged.

Further, the guide rails 4 are fixed on the stay 9 in a pair spaced apart from each other in the vehicle entry/exit direction, and the middle pallet 5 is arranged to traverse on the guide rails.

Reference numeral 24 denotes a wire rope for suspending the upper pallet stretched between the front part of the side frame 11 of the upper pallet 7 and the upper slider 15, and a first pulley 25a provided approximately in the middle of the rear column 8. The upper pallet is tensioned by a second pulley 25b provided at the top of the rear column 8 and a third pulley 25c provided on the upper rigid frame beam 10 in front of the second pulley 25b. 7 is always suspended to prevent the upper pallet 7 from falling forward.

On the other hand, a wire rope 26 for suspending the lower pallet 6 is also stretched between the front part of the side frame 12 of the lower pallet 6 and the lower slider 16, and is provided at the lower end of the rear column 8. This wire rope 26 is tensioned by a fourth pulley 27a provided at the base end of the stay 9, a fifth pulley 27b provided at the base end of the stay 9, and a sixth pulley 27c provided at the tip end of the stay 9. This lower pallet 6 is always suspended by a wire rope 26 to prevent the lower pallet 6 from falling forward.

Next, the movement of the pallets at each stage will be explained with reference to FIG.

In FIG. 5A, the upper pallet 7 is fixed at the upper limit position by the hook 23 of the hydraulic cylinder, and the lower pallet 6 has bottomed out at the bottom of the pit 2.
The middle pallet 5 shows the standard state between these upper and lower pallets.

In this standard state, the upper pallet 7 is held at its tip by the wire rope 24 and held in a horizontal state without falling forward. Note that, at this time, the hydraulic cylinder 21 is at its maximum length.

FIG. 5B shows a state in which the middle pallet is moved laterally at a predetermined position and retracted to the side. In this state, the upper pallet 7 can be lowered or the lower pallet 6 can be raised.

FIG. 5C shows the case where the upper pallet 7 is lowered from the state shown in FIG.
is electromagnetically swung to release the suspension lock of the hydraulic cylinder, then the pressure oil in the upper oil chamber of the hydraulic cylinder 21 is gradually discharged from port A, and the upper pallet 7 is moved to the middle position at a predetermined slow speed. Pressure oil is supplied appropriately to the lower hydraulic pressure. that time,
Since the upper pallet 7 descends together with the upper slider 15, the upper pallet 7 is suspended by the wire rope 24 even in the middle position. Note that the upper pallet 7 has a guide rail 4 in the middle position.
A recessed portion 28 is provided to prevent interference with the material. After the vehicle enters and exits the upper pallet 7 in the state shown in Fig. 5C, the upper pallet 7
is returned to the state shown in FIG.

Pressure oil is supplied by a hydraulic pump (not shown), and oil is appropriately drained from the lower oil chamber.

In addition, Figure 5 D shows the lower pallet 6 from the state shown in Figure B.
This is done by supplying pressure oil from port B to the lower oil chamber of the hydraulic cylinder 21 while discharging the pressure oil from the upper oil chamber from port A. At this time, since the lower pallet 6 rises together with the slider 15, the lower pallet 6 is suspended by the wire rope 26 at the middle position. The lower pallet 6 in the middle position is lowered after the vehicle enters and exits from the warehouse in the same manner as described above.

Vehicles can be taken in and out of the middle pallet 5 at any appropriate position, and the same operation can be performed on a predetermined upper or lower pallet by moving the middle pallet sideways to bring the vehicle in and out of the warehouse in the state shown in Figure 5B. Just make it where you want it to be.

The lifting and lowering of the upper and lower pallets in the three-tier multilevel parking system described above is always performed sequentially for the plurality of pallets shown in Fig. 1. Pressure oil must be supplied and discharged to the hydraulic cylinder only once at a time.
There will be only one stand (one pair for both left and right sides). Therefore, if one hydraulic pump device for lifting and lowering, that is, a lifting drive device for supplying and discharging pressure oil, is prepared with a capacity that can be applied to one unit, the pressure oil path can be controlled by the oil path switching valve. By switching, it can be used for lifting and lowering any pallet, and compared to the conventional application method where one motor is used for one pallet,
A significant reduction in the drive means required for the entire equipment and equipment costs are achieved.

In addition, the upper and lower pallets are constantly suspended by wire ropes, which prevents the upper and lower pallets from tipping forward due to the weight of parked vehicles and maintains them in a stable horizontal state. be done.

In this embodiment, a wire rope is used as a suspension means for suspending the top and bottom ends of the upper and lower pallets, but a chain or the like may also be used.

FIG. 6 shows an example in which H-shaped steel is used for the rear column 8, and in this case, the weight of the device can be reduced.

(Effects of the invention) As described above, according to the three-stage multilevel parking system of the present invention, (a) the lifting mechanism can be shared and used, and in particular, the hydraulic pump that is the drive device can be used for multiple lifting and lowering operations. Since one unit can be used for each pallet, the number of parts can be reduced, assembly workability has been improved, and costs have been greatly reduced.

B For a large number of pallets arranged in a row,
The structure that supports the weight and supports lifting, lowering, and traversing is a rigid structure that combines rigid frames and trusses, so the structure is extremely reliable even against earthquakes.

C. The structural frame can be suitably combined with a mechanism for raising, lowering, and traversing pallets, so the space required to accommodate the entire equipment is reduced, and the dimensions in the vehicle entry and exit direction are Together with the miniaturization of components, it can be made smaller, increasing adaptability to various demands.

D. The ends of the upper and lower pallets are always suspended by wire ropes, etc., which prevents the pallets from tipping forward due to the weight of parked vehicles and maintains a stable horizontal position. is always held.

These effects are obtained, and the practical benefits thereof are great.

[Brief explanation of the drawing]

Figure 1 is a front view illustrating the outline of the three-tiered multi-level parking system of the present invention, Figure 2 is a perspective view showing an example of the structural frame, and Figure 3 shows the specific configuration of the three-tiered multi-level parking system. FIG. 4 is a plan sectional view of the rear column, FIG. 5 A to D are diagrams for explaining the movement of each pallet, and FIG. It is. 1... Ground, 2... Pit, 3... Structural frame, 4... Guide rail, 5... Middle pallet,
6...Lower palette, 7...Upper palette, 8...
...Rear column, 9... Stay, 10... Upper rigid frame beam, 10'... Front column, 10''... Diagonal member, 10...
...Side truss, 11, 12...Side frame, 13, 14
... Plate, 15 ... Upper slider, 16 ... Lower slider, 17, 18 ... Reinforcement member, 19 ... Slide rail, 20 ... Shu, 21 ... Double-acting hydraulic cylinder device (hydraulic cylinder), 21 '...Cylinder body, 21'...Piston rod, 22
... Pin, 23 ... Hook, 24, 26 ... Wire rope, 25a, 25b, 25c, 27a,
27b, 27c... Pulley, 28... Recessed portion.

Claims (1)

[Scope of utility model registration request] Of the three upper, middle, and lower vehicle parking pallets arranged in multiple rows, the upper and lower pallets can be raised and lowered to middle positions facing the vehicle entry/exit ground, and the middle pallets are A support that is capable of traverse retraction in the row direction when the upper or lower pallets are raised or lowered, and that fits into the rear end bases of the upper and lower pallets to move them up and down, and a beam that allows the middle pallets to move laterally. A double-acting hydraulic cylinder device supported by a structural frame connected to the upper and lower pallets, and connected between the upper and lower pallets to raise and lower the upper or lower pallets individually by supplying and discharging pressure oil to oil chambers on both sides. , a three-tier multi-level parking system in which a locking means for mechanically suspending the upper pallet at the upper limit position is assembled to a vertical support on the back side of the structural frame in the vehicle entry/exit direction; Pallet suspension means formed by stretching a wire from the tip of the pallet to the base of each pallet via at least a pair of pulleys fixed above and below the vertical and vertical limits of each pallet. established,
Furthermore, a plurality of double-acting hydraulic cylinder devices, which are provided between the horizontally arranged upper and lower pallets so as to be able to expand/contract/close the vertical spacing thereof, are connected to one lifting/lowering cylinder via an oil passage switching valve. A three-level multilevel parking system characterized by being connected to a hydraulic pump.