JP3583083B2 - Multi-story parking facilities and their driving devices - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a multi-story parking facility and a driving device thereof. More specifically, a vehicle-mounted pallet (hereinafter, simply referred to as a pallet) drives a multi-story parking facility capable of moving up and down between a storage position in the pit and a vehicle entrance position on the pit, and a transmission device for moving the pallet up and down. For a driving device.
[0002]
[Prior art]
FIG. 3 shows a conventional multi-story parking facility 51. In the parking facility 51, a plurality of pallets 52 fixed to each other in a vertically separated state are accommodated in a pit 53 dug on the ground. The plurality of pallets 52 are integrally lifted and lowered, and a desired pallet is positioned at the entry level on the pit 53 to move the vehicle in and out. In this parking facility 51, the left and right sides of the three upper and lower pallets 52a, 52b, 52c are fixed by columns 54 while being separated from each other. The number of pallets is not limited to three, and may be two or less or four or more. The mechanism for raising and lowering the pallets 52 includes a hydraulic cylinder 55 and a hydraulic unit 56 that are driven to move up and down. The hydraulic cylinders 55 are erected on the floors on both outer sides at the rear of the pallet 52. The tip of the piston rod 55a is fixed to the upper pallet 52a. The pallet 52 is integrally moved up and down by expanding and contracting the piston rod 55a. Since the upper surface of the pit serves as the entrance, the desired pallet 52 is made to match the level of the entrance by moving up and down.
[0003]
The hydraulic unit 56 includes a hydraulic pump and a pump drive motor (not shown), and hydraulic oil is supplied from the hydraulic unit 56 to the hydraulic cylinder 55. The hydraulic unit 56 is disposed in the passage portion 57. The passage portion 57 is located at a position corresponding to the ground (upper end of the pit) and beside the pallet 52, and is fixed to the pit 53 and cannot move up and down. As described above, since the hydraulic unit 56 of the multi-story parking facility 51 shown in FIG. 3 is installed at the ground level, even if the inside of the pit 53 is flooded by rainwater or the like, damage due to flooding of the hydraulic unit 56 can be reduced.
[0004]
However, in a multistory parking facility, the main sound source is associated with the operation of a drive unit such as a hydraulic unit that raises and lowers a pallet, and a noise problem arises because the drive unit is installed at the ground level. Normally, as shown in FIG. 3, the hydraulic unit 56 is disposed behind the multi-story parking facility so as not to obstruct the user. However, this position is generally the boundary of the adjacent land in many cases. This further exacerbates the noise problem.
[0005]
As a multi-story parking facility for raising and lowering a pallet in and above a pit by a driving device, in addition to the above-mentioned ones, Japanese Patent Publication No. 2-29144, Japanese Patent Laid-Open No. 8-53950, Japanese Patent Laid-Open No. 2000-17874, This is known from Japanese Unexamined Patent Publication No. 4-52165, Japanese Unexamined Utility Model Publication No. 4-59250, and the like. In these multi-story parking facilities, the pallet elevating drive device is installed at an intermediate portion in the pit or on the floor of the pit, so that when the pit is flooded, there is a possibility that the drive device will be flooded.
[0006]
[Problems to be solved by the invention]
The present invention has been made in order to solve such a problem, and it is possible to reduce noise while preventing damage to a drive device during flooding of a pit, and a pallet lifting / lowering drive device capable of operating even during flooding. It is an object of the present invention to provide a multi-story parking facility to which the driving device is applied.
[0007]
[Means for Solving the Problems]
A drive device for a multi-story parking facility according to the present invention includes a hydraulic unit for driving a hydraulic cylinder that moves a vehicle-mounted pallet up and down between a pit and above a pit, a cover that covers the hydraulic unit in a liquid-tight manner, Provided in the cover, and a ventilation pipe communicating between the inside of the cover and above the pit, the cover has a container shape having a top plate portion and a side plate portion, and the lower end of the side plate portion serves as a seal member. It is configured to be interposed and attached to the floor of the pit. In another drive device of the present invention, the cover has a container shape having a top plate, a side plate, and a floor plate, and the hydraulic unit is housed inside the cover. In still another drive device of the present invention, the hydraulic unit includes a liquid-tight hydraulic oil tank, a hydraulic pump and a pump drive motor disposed on the hydraulic oil tank, and the cover includes a hydraulic pump and It is installed on the hydraulic oil tank with the pump drive motor housed.
[0008]
According to such a driving device, even if it is installed on the floor surface in the pit of the multi-story parking facility, the driving source is densely covered by the cover, so that the driving source is protected from flood damage even if the pit is flooded. Further, noise accompanying the operation of the driving device is reduced. Further, since a ventilation pipe communicating between the inside of the cover and the upper part of the pit is provided, a cooling effect of the drive source is generated.
[0009]
Further, it is preferable that a drive device in which an electric wire for supplying electric power to the drive source is inserted through the ventilation pipe. This is because no special waterproofing measures are required for the power supply mechanism in case of pit flooding or flooding.
[0010]
Furthermore, a drive device in which two ventilation pipes are provided and a blower is provided in one of the ventilation pipes is preferable because the cooling effect of the drive source, which is a heat source, is further improved.
[0011]
The multi-story parking facility according to the present invention includes a pit, a vehicle-mounted pallet that moves up and down between the pit and above the pit, a transmission for raising and lowering the vehicle-mounted pallet, and a drive for driving the transmission. And a driving device is provided in the pit.
[0012]
According to such a multi-story parking facility, the drive source can be prevented from being damaged by flooding, and the noise of the parking facility due to the operation of the drive device is reduced. No special equipment or equipment is required for that.
[0013]
As the transmission, for example, a hydraulic cylinder, a feed screw mechanism, a sprocket, a chain, and the like can be considered. The drive source is a hydraulic unit including a hydraulic pump and a pump drive motor when the transmission is a hydraulic cylinder, and an electric motor when the transmission is a feed screw mechanism and a sprocket and a chain.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of a multi-story parking facility and a pallet lift drive device of the present invention will be described with reference to the accompanying drawings.
[0015]
FIG. 1 is a perspective view showing one embodiment of a multi-story parking facility of the present invention.
[0016]
The illustrated parking facility has a pallet 53 in which two rows of pallets having upper, middle, and lower pallets 1, 2, and 3 are arranged in two rows. It is not particularly limited to three stages, and may be one stage or two stages, or four or more stages. The number of rows is not limited to two, and may be one, or three or more. The pallets 1, 2, 3 are fixed to each other by a plurality of columns 4 with a vertical interval therebetween. FIG. 1 shows a state in which the pallets 1, 2, and 3 (also referred to as pallet groups) on the left side are at the ascending position, and the pallet groups on the right side are at the descending position. The arrow F in the drawing indicates the approach direction of the vehicle to be entered.
[0017]
Hydraulic cylinders 5 are provided on both left and right sides of the pallet group as pallet elevating means, that is, a transmission device from a drive source 20 to a pallet, which will be described later. The base end of the cylinder body (also referred to as an outer cylinder) 5 a is fixed to the floor, and the tip of the piston rod 5 b is fixed to the side of the upper pallet 1. Alternatively, the tip of the piston rod 5b may be fixed to the floor and the base end of the outer cylinder 5a may be fixed to the side of the upper pallet 1 in the opposite manner.
[0018]
A hydraulic unit 6 as a drive device for operating the hydraulic cylinder 5 is installed on the floor in the pit 53. The hydraulic unit 6 is installed in a space between the pallet groups so as not to hinder the elevation of the pallet groups. Since the hydraulic unit 6 is located in the pit 53 as described above, the noise caused by its operation is greatly restricted from propagating onto the pit 53. Also, the upward emission of noise is further limited by the presence of the pallet. An oil supply pipe 7 is provided from the hydraulic unit 6 to each hydraulic cylinder 5. The hydraulic unit 6 is sealed from outside by a cover 8 in a liquid-tight manner. The cover 8 is provided with a ventilation pipe 9 for communicating the inside of the cover 8 and the outside above the pit 53.
[0019]
FIG. 2 shows details of the hydraulic unit 6. The hydraulic unit 6 has a cover 8 in which a hydraulic pump 10, a pump drive motor 11, a hydraulic oil discharge pipe 12, a hydraulic oil switching valve 13, a hydraulic oil return pipe (not shown), and the like are housed. These devices 10 and 11 as the drive source 20 are installed on the hydraulic oil tank 14, but the arrangement can be changed as appropriate.
[0020]
The cover 8 includes a top plate portion 8a that covers the entire upper surface of the drive source 20 and a side plate portion 8b that covers the entire periphery of the side portion, as shown in the drawing. A floor panel may be attached to the bottom of the drive source 20 as one component of the cover 8. That is, the cover 8 is formed into a liquid-tight container. Alternatively, the side plate portion 8b may be attached to the pit floor surface in a liquid-tight manner via a sealing member or the like without providing a floor plate. Although the illustrated cover 8 has the side plate portion 8b formed at an interval from the hydraulic oil tank 14, the cover 8 is not limited to such a configuration. Since the hydraulic oil tank 14 is originally liquid-tight with respect to the outside, it is possible to form the cover 8 only on the upper part of the hydraulic oil tank 14 and house the hydraulic pump 10 and the pump drive motor 11 as the drive source 20 therein. Good.
[0021]
When the cover 8 is formed of a metal such as a steel plate, the joint of each side is welded or bolted with a gasket interposed. In addition, it is preferable to integrally mold the top plate and the side plate from plastic since airtightness and rust prevention are completed and the weight is reduced. The shape of the cover 8 is not limited to a rectangular parallelepiped as shown in the figure, and may be any of a cube, a column, and the like in consideration of ease of manufacturing, ease of transport and installation, and adaptability to the shape of the built-in device. The shape may be as follows.
[0022]
In the present embodiment, two ventilation pipes 9 a and 9 b are attached to the cover 8. An electric cable 15 for supplying electric power to the drive motor 11 is inserted into one of the ventilation pipes 9a. This eliminates the need for a special waterproofing measure for the power supply mechanism to the drive motor 11 during flooding of the pit. A blower 16 is attached to the other ventilation pipe 9b. By doing so, the outside air circulates into the cover, so that the hydraulic unit 6 is effectively cooled. Of course, the blower 16 may be attached to the ventilation pipe 9a through which the electric cable 15 is inserted. The upper ends of the ventilation pipes 9a and 9b projecting above the upper ends of the pits 53 are curved laterally or downward to prevent rainwater from flowing in. Further, a filter may be attached to the upper end.
[0023]
In the present embodiment, two ventilation pipes 9a and 9b are attached, but it is not necessary to limit to this. For example, only one ventilation pipe may be provided, and the electric cable 15 may be inserted therein. Alternatively, the ventilation pipe may be a double pipe, and the electric cable 15 may be inserted into one of the inner pipe and the outer pipe.
[0024]
The oil supply pipe 7 and the return pipe (not shown) connected to the switching valve 13 of the hydraulic unit 6 pass through a through hole 17 formed in the cover 8. A seal member 18 is attached to the through hole 17 to make the space between the discharge pipe 12 and the like liquid-tight.
[0025]
As described above, since the hydraulic unit 6 is sealed from the outside in a liquid-tight state by the cover 8, the hydraulic unit 6 is not affected by rainwater even when the pit is flooded. Therefore, it is possible to operate the hydraulic unit 6 even when the pit is flooded. In addition, since the hydraulic unit 6 is sealed by the cover 8 and installed on the floor inside the pit 53, noise during operation thereof is reduced. Further, since the inside of the cover 8 communicates with the atmosphere above the pit 53 through the ventilation pipe 9, the inside of the cover 8 is prevented from becoming negative pressure when the hydraulic unit 6 is operated. This is because the operation of the hydraulic pump 10 lowers the oil level of the hydraulic oil tank 14, but the air is supplied through the ventilation pipe 9 accordingly. In addition, a cooling effect on the hydraulic unit 6 is generated by the exchange of the air in the cover 8.
[0027]
In the case of pneumatic drive, the arrangement is similar to that of the hydraulic unit described above.
[0028]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, even if the pit of a multi-story parking facility is flooded, flood damage of a drive device can be prevented and the noise reduction of the whole parking facilities becomes possible. Moreover, it is possible to operate the hydraulic unit even when the pit is flooded.
[Brief description of the drawings]
FIG. 1 is a perspective view showing one embodiment of a multi-story parking facility of the present invention.
FIG. 2 is a side sectional view showing one embodiment of the driving device in FIG.
FIG. 3 is a perspective view showing an example of a conventional multi-story parking facility.
[Explanation of symbols]
1 Upper pallet 2 Middle pallet 3 Lower pallet 4 Support 5 Hydraulic cylinder 5a Cylinder body 5b (of hydraulic cylinder) Hydraulic cylinder piston rod 6 Hydraulic unit 7 Oil supply pipe 8 Cover 8a Top plate 8b Side plate 9 Ventilation pipe 10 Hydraulic pump 11 Pump drive motor 12 Discharge pipe 13 Switching valve 14 Hydraulic oil tank 15 Electric cable 16 Blower 17 · Through hole 18 ··· Seal member 20 ··· Drive source 53 ··· Pit

Claims (6)

A hydraulic unit for driving a hydraulic cylinder that raises and lowers a vehicle-mounted pallet between the inside and the top of the pit;
A cover that covers the hydraulic unit in a liquid-tight manner,
A ventilation pipe disposed in the cover and communicating between the inside of the cover and above the pit,
A drive device for a multi-story parking facility, wherein the cover has a container shape having a top plate portion and a side plate portion, and a lower end of the side plate portion is attached to a floor of the pit with a seal member interposed therebetween. A hydraulic unit for driving a hydraulic cylinder that raises and lowers a vehicle-mounted pallet between the inside and the top of the pit;
A cover that covers the hydraulic unit in a liquid-tight manner,
A ventilation pipe disposed in the cover and communicating between the inside of the cover and above the pit,
A drive device for a multi-story parking facility, wherein the cover has a container shape having a top panel, a side panel, and a floor panel, and the hydraulic unit is housed inside the cover. A hydraulic unit for driving a hydraulic cylinder that raises and lowers a vehicle-mounted pallet between the inside and the top of the pit;
A cover for covering the hydraulic unit,
A ventilation pipe disposed in the cover and communicating between the inside of the cover and above the pit,
The hydraulic unit includes a liquid-tight hydraulic oil tank, a hydraulic pump and a pump drive motor disposed on the hydraulic oil tank,
A drive device for a multi-story parking facility, wherein the cover is installed on a hydraulic oil tank with the hydraulic pump and the pump drive motor housed in a liquid tight manner. The drive device for a multi-story parking facility according to any one of claims 1 to 3, wherein an electric wire for supplying electric power to a drive source is inserted through the ventilation pipe. The drive device for a multi-story parking facility according to any one of claims 1 to 3, wherein two ventilation pipes are provided, and a blower is provided on one of the ventilation pipes. Pits,
A vehicle-mounted pallet that moves up and down between the pit and above the pit,
A transmission for raising and lowering the vehicle-mounted pallet;
A driving device according to any one of claims 1 to 5 for driving the transmission device,
A multi-story parking facility in which the driving device is disposed in the pit.

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