JP5254769B2 - Three-dimensional parking device - Google Patents

Description

  The present invention relates to a multi-story parking apparatus.

  Some three-dimensional parking apparatuses having a pallet lifting body in which a plurality of pallets are connected in multiple stages by a pair of front and rear pallet columns are provided with a balance chain for maintaining the horizontal posture of the pallet lifting body during lifting. . For example, in the multi-story parking apparatus described in Patent Document 1, a front suspension chain and one balance chain are bridged at a position ahead of the front pallet column (vehicle entry side), and a position behind the rear pallet column. The rear suspension chain and the other balance chain are bridged.

Moreover, it may be difficult to arrange the balance chain before and after the pallet lifting body due to restrictions on the installation space of the multi-story parking device. For example, in the multi-story parking apparatus described in Patent Document 2, a balance chain is spanned between the front end of the pallet and the front suspension chain, and the rear suspension chain is located behind the rear pallet column. Only the bridge is over.
JP-A-9-177349 Japanese Utility Model Publication No. 6-78531

  By the way, in the arrangement of the suspension chain and the balance chain as in Patent Document 2 described above, the center of action of the horizontal load acting on the pallet at each stage is behind the front pallet column as viewed from the balance chain side as the restraint portion. To position. For this reason, bending moments due to rolling and twisting moments due to yawing tend to act intensively on the front pallet column, and it is necessary to provide a separate structure for significantly reinforcing the front pallet column. However, when a structure for reinforcing the pallet support is provided, the structure may be complicated due to an increase in the size of the member or the number of parts.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a three-dimensional parking apparatus that can stably hold the horizontal posture of a pallet lifting body with a simple configuration.

  In order to solve the above-described problems, a multilevel parking apparatus according to the present invention includes a pallet lifting body formed by connecting a plurality of pallets on which a vehicle is placed in a multistage manner with a pair of front and rear pallet columns, and a pallet more than a front pallet column. A pair of front and rear suspension chains that hang over the lower part of the pallet lifting body at a position that is on the front end side and a position that is on the rear end side of the pallet with respect to the rear pallet column, and the front pallet column and the rear side A balance chain is provided that spans the lower part of the pallet lifting body at a position between the pallet column and holds the horizontal posture when the pallet lifting body is raised and lowered.

  In this multi-story parking device, since the center of action of the horizontal load acting on the pallets at each stage and the balance chain as the restraint part are located on the center side of the front and rear pallet columns, the applied horizontal load is Can be distributed on pallet posts. In addition, since the balance chain is provided at a position between the front pallet column and the rear pallet column, the horizontal posture of the pallet lifting body can be stably maintained without providing the balance chain at a plurality of locations.

  Further, the balance chain is preferably disposed at an intermediate position between the front pallet column and the rear pallet column. If it carries out like this, the horizontal attitude | position of a pallet raising / lowering body can be hold | maintained more stably. Further, when a wind pressure load is applied to the pallet lifting body due to the installation location of the three-dimensional parking device, the load is proportional to the projected area of the pallet lifting body, and the load center tends to be closer to the rear of the pallet lifting body. Therefore, this configuration is particularly significant when the wind pressure load applied to the pallet lifting body is estimated to be greater than the seismic load.

  Moreover, it is preferable that the balance chain is disposed at a position near the front pallet column. When the vehicle enters and leaves, a large load is applied to the front side of the pallet lifting body by the vehicle. Further, the load on the vehicle itself tends to be larger in the front axle load than in the rear axle load. Therefore, the horizontal posture of the pallet lifting / lowering body can be held more stably by making the balance chain unevenly distributed near the front pallet column. This configuration is particularly significant when the seismic load applied to the pallet lifting body is estimated to be larger than the wind pressure load due to the installation location of the multi-story parking device.

  Moreover, it is preferable to further include a frame configured by a pair of front and rear columns provided on both sides of the pallet lifting body, and the frame has reinforcing columns corresponding to the position of the balance chain. The installation position of the balance chain has a higher load than other positions. Therefore, by providing the reinforcing column at this position, the pallet lifting body can be firmly supported by the frame.

  According to the present invention, the horizontal posture of the pallet lifting body can be stably held with a simple configuration.

  Hereinafter, preferred embodiments of a multi-story parking apparatus according to the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a front view showing an embodiment of a multi-story parking apparatus according to the present invention. FIG. 2 is a side view thereof. As shown in FIGS. 1 and 2, the multi-story parking device 1 is provided in a pit P formed by excavating a predetermined depth from the ground surface on which the vehicle K travels. Hereinafter, the entrance / exit side of the vehicle K will be described as the front side.

  In the pit P, the multi-story parking device 1 has a frame 2. The frame 2 is constituted by a front column 3 and a rear column 4 that are erected in a pair of left and right sides on the front side and the rear side of the pit P. A pallet elevating body 5 is arranged in a space surrounded by the frame body 2.

  The pallet lifting / lowering body 5 includes a plurality of (three in this embodiment) pallets 6 on which the vehicle K is placed, and a front pallet column 7 and a rear pallet column 8 arranged on both sides of the pallet 6. Yes. That is, the pallet lifting / lowering body 5 includes an upper pallet 6a, a middle pallet 6b, and a lower pallet 6c, and each pallet 6a, 6b, 6c is divided into three stages by a pair of front and rear pallet columns 7 and 8 at the front and rear. It is connected.

  Further, two suspension chains of a front suspension chain 11 and a rear suspension chain 12 are provided at lower portions of the front and rear sides of the pallet lifting body 5 via suspension chain sprockets 21 and 22 provided on the lower pallet 6c. Each is overlaid. The pallet lifting body 5 is suspended from the bottom surface of the pit P to a predetermined height by the front suspension chain 11 and the rear suspension chain 12. Further, a pair of left and right balance chains 13 and 14 are bridged across a lower part of the center of the pallet lifting body 5 via a balance chain sprocket 23 provided on the lower pallet 6c.

  As shown in FIG. 2, the front suspension chain 11 is arranged at a position closer to the front end 6 e of the pallet 6 than the front pallet column, and the rear suspension chain 12 is arranged closer to the pallet 6 than the rear pallet column 8. It is arranged at a position on the rear end 6d side. The balance chains 13 and 14 are arranged at an intermediate position between the front pallet column 7 and the rear pallet column 8 in the approximate center of the pallet 6. Further, in the frame body 2, a pair of left and right reinforcing columns 9 is provided at an intermediate position between the front column 3 and the rear column 4 corresponding to the positions of the balance chains 13 and 14.

  Then, the raising / lowering mechanism of the pallet raising / lowering body 5 mentioned above is demonstrated. The lifting mechanism of the pallet lifting body 5 includes a drive motor 31 and an interlocking shaft 32, as shown in FIG. 2, in addition to the front suspension chain 11, the rear suspension chain 12, and the balance chains 13, 14. ing.

  The drive motor 31 has a drive sprocket 33, and the main body portion of the drive motor 31 is fixed to the rear support column 4 on one side of the frame body 2 via a bracket. The interlocking shaft 32 is rotatably supported between the upper portion of the front column 3 and the upper portion of the rear column. An interlocking sprocket 34 is fixed to the rear end portion of the interlocking shaft 32, and an endless chain 35 is bridged between the interlocking sprocket 34 and the drive sprocket 33.

  Further, on the front side and the rear side of the interlocking shaft 32, a front lifting sprocket 36 and a rear lifting sprocket 37 are respectively associated with the positions of the front suspension chain sprocket 21 and the rear suspension chain sprocket 22. It is fixed. One end side of the front suspension chain 11 and the rear suspension chain 12 is wound around each of the lifting sprockets 36 and 37.

  The front suspension chain 11 and the rear suspension chain 12 are bridged in the width direction at the lower part of the lower pallet 6c via the front suspension chain sprocket 21 and the rear suspension chain sprocket 22, and each of the suspension chains 11, 12 The end side is fixed to the zenith P1 on the right side of the pit P in FIG. 1 (see FIG. 1).

  On the other hand, one end of the balance chain 13 is fixed to the zenith portion P1 of the pit P, and the other end is fixed to the bottom surface of the pit P. The balance chain 13 is wound around a substantially semicircular surface on the upper side of the left balance chain sprocket 23, spanned in the width direction at the lower portion of the lower pallet 6 c, and then substantially below the right balance chain sprocket 23. It is wound around the half circumference. Moreover, the balance chain 14 which makes a pair with the balance chain 13 is disposed in a bilaterally symmetrical relationship with the balance chain 13 (see FIG. 1).

  According to this configuration, when the drive sprocket 33 is rotated by the drive motor 31, the rotational force is transmitted to the interlocking shaft 32 via the endless chain 35, and the interlocking shaft 32 rotates in the same direction as the rotation direction of the drive sprocket 33. . The pallet lifting / lowering body 5 moves up and down by feeding and winding the front suspension chain 11 and the rear suspension chain 12 along with the rotation of the interlocking shaft 32. By moving the desired pallet 6 to the loading / unloading position (that is, the position of the ground surface) by moving the pallet lifting / lowering body 5, the vehicle can be loaded / unloaded onto the pallet 6.

  Even when the left and right loads applied to the pallet lifting body 5 are unbalanced during lifting, the deviation is absorbed by the left and right balance chains 13 and 14, so that the horizontal state of the pallet lifting body 5 is always maintained. . Thereby, the safety | security at the time of the pallet raising / lowering body 5 raising / lowering is ensured.

  As described above, in the multi-story parking apparatus 1, the balance chains 13 and 14 are bridged under the pallet lifting body 5 at a position between the front pallet column 7 and the rear pallet column 8. As a result, as shown in FIG. 3, the horizontal load acting center F acting on the pallet 6 at each stage and the balance chains 13 and 14 as the restraining portions are both from the front pallet column 7 and the rear pallet column 8. Is also located on the center side, so that the applied horizontal load can be distributed to each of the front pallet column 7 and the rear pallet column 8. Therefore, the required strength of the front pallet column 7, the rear pallet column 8, and the surrounding structure can be reduced, and it is not necessary to provide a special structure for reinforcing them, so that a simple configuration can be maintained.

  In the multi-story parking apparatus 1, the balance chains 13 and 14 are provided at an intermediate position between the front pallet column 7 and the rear pallet column 8. For this reason, the balance chains 13 and 14 are positioned almost directly below the center F of the horizontal load acting on the pallet 6 at each stage (see FIG. 3), and the pallet is not provided at a plurality of locations. The horizontal posture of the elevating body 5 can be stably held. Further, when a wind pressure load is applied to the pallet lifting body 5, the load is proportional to the projected area of the pallet lifting body 5, and the load center tends to be closer to the rear of the pallet lifting body 5. Therefore, this configuration is particularly significant when it is estimated that the wind pressure load applied to the pallet lifting body 5 is greater than the earthquake load due to the installation location of the multi-story parking device or the like.

  Further, in the multi-story parking device 1, a pair of left and right reinforcing columns 9 are provided in the frame 2 at an intermediate position between the front column 3 and the rear column 4 corresponding to the positions of the balance chains 13 and 14. The load at the installation positions of the balance chains 13 and 14 is higher than at other positions. Therefore, the pallet lifting body 5 can be firmly supported by the frame body 2 by providing the reinforcing column 9 at this position.

  The present invention is not limited to the above embodiment. For example, in the above-described embodiment, the balance chains 13 and 14 are installed at an intermediate position between the front pallet column 7 and the rear pallet column 8, but like the three-dimensional parking apparatus 61 shown in FIG. 14 may be disposed near the front pallet column 7 at a position between the front pallet column 7 and the rear pallet column 8. In the example shown in FIG. 4, the length of the pallet 6 on the front side of the balance chains 13 and 14 and the length of the pallet 6 on the rear side are 4: 6.

  When the vehicle K enters / exits, a large load is applied to the front side of the pallet lifting body 5 by the vehicle K. In addition, the load (mass) of the vehicle itself generally tends to have a ratio of front axle load to rear axle load of about 6: 4. Therefore, the horizontal posture of the pallet elevating body 5 can be held more stably by keeping the balance chains 13 and 14 near the front pallet column 7. This configuration is particularly significant when it is estimated that the seismic load applied to the pallet lifting body 5 is greater than the wind pressure load due to the installation location of the multi-story parking device.

It is a front view which shows one Embodiment of the multi-story parking apparatus which concerns on this invention. It is a side view of the multi-story parking apparatus shown in FIG. It is a figure explaining the effect of a three-dimensional parking device. It is a side view which shows the modification of the multi-story parking apparatus which concerns on this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1,61 ... Three-dimensional parking apparatus, 3 ... Front side support | pillar, 4 ... Rear side support | pillar, 5 ... Pallet raising / lowering body, 6 ... Pallet, 6d ... Rear end, 6e ... Front end, 7 ... Front pallet support | pillar, 8 ... Rear pallet support , 9 ... Reinforcing columns, 11 ... Front suspension chain, 12 ... Rear suspension chain, 13, 14 ... Balance chain, K ... Vehicle.

Claims (4)

A pallet lifting body formed by connecting a plurality of pallets on which vehicles are placed in a multi-stage by a pair of front and rear pallet columns;
A pair of front and rear hoisting the pallet lifting body over the lower part of the pallet lifting body at a position closer to the front end side of the pallet than the front pallet column and a position closer to the rear end side of the pallet than the rear pallet column. A hanging chain of
A balance chain that spans the lower part of the pallet lifting body at a position between the front pallet column and the rear pallet column, and that maintains a horizontal posture when the pallet lifting body moves up and down. A three-dimensional parking apparatus that is characterized.   The three-dimensional parking apparatus according to claim 1, wherein the balance chain is disposed at an intermediate position between the front pallet column and the rear pallet column.   The three-dimensional parking apparatus according to claim 1, wherein the balance chain is disposed at a position near the front pallet column. Further comprising a frame constituted by a pair of front and rear columns provided on both sides of the pallet lifting body,
The three-dimensional parking apparatus according to any one of claims 1 to 3, wherein the frame body includes a reinforcing column corresponding to a position of the balance chain.

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