JPH09268791A - Driving device for vertical circulation-type housing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a driving device lightweight. SOLUTION: Two rows of idle gear trains 24A and 24B are arranged in parallel with each other with the idle gears 31 on the output end being meshed with a driven gear 23 integrally provided at an upper sprocket 11, and a driving pinion 22 driven by a driving motor is arranged for meshing with the idle gears 31A at the input end of the idle gear trains 24A and 24B. Thereby, small and lightweight idle gears can be used, making the entire structure lightweight.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an automobile, a bicycle,
The present invention also relates to a drive device in a vertical circulation type storage device that is provided with a plurality of storage members for storing loads and is movable in the vertical direction.

[0002]

2. Description of the Related Art A plurality of suspension cages capable of accommodating a vehicle are swingably supported between chains of a vertical circulation mechanism in which an endless chain is wound between a pair of left and right sprockets arranged vertically. In the vertical circulation type three-dimensional parking apparatus, as shown in FIG. 6, a passive gear 3 is integrally attached to a support shaft 2 of an upper sprocket 1 and, for example, three drive pinions 4 driven by a drive motor (not shown) are provided. Idle gear 5A
5C are interlockingly connected.

[0003]

However, in order to drive the sprocket 1 on which a large load is applied, it is necessary to employ a large gear having a wide tooth width, which causes a problem that the driving device becomes heavy. there were.

It is an object of the invention according to claim 1 of the present invention to provide a drive device in a vertical circulation type storage device capable of solving the above problems and reducing the weight of the drive device.

[0005]

In order to achieve the above-mentioned object, the invention according to claim 1 of the present invention is to wind a chain between a plurality of sprockets arranged vertically and to store them between the chains. In a drive device of a vertical circulation type storage device in which members are arranged at regular intervals, a plurality of idle gear trains in which idle gears at output ends mesh with passive gears integrally provided on the sprocket are arranged in parallel with each other. However, drive pinions that mesh with the idle gears at the input ends of these idle gear trains and that are rotated by the drive means are provided.

Further, the drive pinion having the above construction is arranged in the idle gear at the input end of the idle gear train, and is swingable freely between the idle gears at both input ends about an axis parallel to the axis. The floating mechanism is arranged in the frame.

According to the above construction, since a plurality of idle gear trains are interposed between the drive pinion and the passive gear, the tooth width can be reduced to a multiple of the conventional one, and the entire gear can be downsized. The weight can be reduced.

Further, since the drive pinion is provided with the floating mechanism, the power can be evenly transmitted to the plurality of idle gear trains, and it is possible to prevent uneven contact and smoothly transmit the power.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a drive device for a vertical circulation type multi-level parking device according to the present invention will be described with reference to FIGS.

As shown in FIG. 4, in this multi-storey parking lot, a pair of left and right upper sprockets (wheels) 11 are rotatably supported on the upper part of a frame (not shown) in the building, and at the lower part. Left and right lower sprocket (wheel) 12,
12 is rotatably supported and has upper and lower sprockets 11,
Endless lifting chains (chains) 13, 12 between 12
3 are wound around each. A cage (storage member) 15 that is rotatably suspended and supported via a link arm 14 and capable of accommodating a vehicle is provided between the left and right lifting chains 13, 13 along the lifting chain 13 at regular intervals. It is located in. A cage 15 is provided between the upper sprockets 11 via the upper sprockets 11 and the chain 13.
A drive device 16 according to the present invention for driving the vehicle up and down is provided. Further, at the lower part of the building, there is provided a loading / unloading port (not shown) for loading / unloading the car into / from the cage 15.

As shown in FIGS. 1 and 2, the drive device 16 includes a drive pinion 22 driven by a drive motor (drive means) 21 with a reduction gear, and a passive gear integrally attached to the upper sprocket 11. 23 and drive pinion 22
And the idle gear train 24A and 24B provided between the drive pinion 22 and the passive gear 23, and the floating mechanism 25 provided in the drive pinion 22.

That is, the support frame 30 of the drive unit 16
Includes an input end idle gear 31A, two intermediate idle gears 31B, which form the idle gear trains 24A and 24B,
The output end idle gears 31C are arranged so as to mesh with each other in the vertical direction, and the two output end idle gears 31C are respectively meshed with the passive gear 23.

A drive shaft 32 connected to the output end of the drive motor 21 is provided with a gear coupling 33 which allows the shaft to bend within a predetermined range, and two output end idle gears 31 are provided.
C is connected to the drive pinion 22 meshing with each other, and these two output end idle gears 31C and the drive pinion 2 are connected.
2 is arranged on the same horizontal plane L. In the floating mechanism 25, a swing frame 35 that rotatably supports the drive pinion 22 is swingably supported above the drive pinion 22 via a swing support pin 34 that is parallel to the axis of the drive pinion 22. It is configured.

Therefore, as shown in FIG. 3, the teeth of the drive pinion 22 hit the input end idle gear 31A of the idle gear train 24A due to backlash, and at the same time, the gap d is formed between the input end idle gear 31A of the idle gear train 24B. If this happens, upper sprocket 1
There is a risk that the load of No. 1 will be applied to all of the idle gear trains 24A on one side via the passive gear 23 and the gear will be damaged.
However, when the floating mechanism 25 is provided,
The oscillating frame 35 is oscillated by θ ° toward the idle gear train 24B by the contact reaction force of the teeth, and the teeth of the drive pinion 22 evenly contact the two input end idle gears 31A and 31A to transmit power. It is possible to prevent one-sided contact. Therefore, the load is not applied only to the idle gear train 24A or 24B having one load, and the upper sprocket 11 can be smoothly rotationally driven.

At this time, the swing amount of the swing frame 35 may be 1/2 of the backlash difference, and the swing amount can be made minute. That is, the movement amount of the shaft center δ = ± (1/2) × (Sn / 2sinα)
Sn: length in the normal direction α: meshing pressure angle For example, if Sn = 1.0 mm and α = 20 °, δ
= ± 0.73 mm.

Furthermore, the floating effect can be improved by subjecting the drive pinion 22 to crown shaving for expanding the tooth trace. As shown in FIG. 5, the speed reducer 41 provided on the swing frame 34
It is also possible to connect the drive shaft 32 and the drive pinion 22 via the and to swing the swing frame 35 together with the speed reducer 41.

According to the above embodiment, the drive motor 21
Can be transmitted from the passive gear 23 to the upper sprocket 11 through the two idle gear trains 24A and 24B, so that the rotation can be smoothly driven. Moreover, since the two idle gear trains 24 are used, the tooth width of each gear can be reduced, and about 5% of the total weight of the entire gear used for the drive device 16 can be reduced. Therefore, the manufacturing cost and the assembling, disassembling, and transportation become easy. Moreover, the floating mechanism 25 can evenly transmit the power to the two idle gear trains 24A and 24B, so that it is not unreasonable and the gear manufacturing accuracy is allowed. Further, the two output end idle gears 31C and the drive pinion 22 are arranged on the same horizontal plane and meshed with each other, and the drive reaction force of the drive pinion 22 is offset, so that smooth rotation can be achieved. Furthermore, two rows of idle gear trains 24A,
Since there is 24B, it is possible to enhance safety in the case of gear breakage or the like.

In the above embodiment, the multi-storey parking lot has been described, but a multi-story bicycle storage device for storing a bicycle in the cage 15 or a multi-story warehouse for storing a load in the cage 15 in a warehouse or an apartment house may be used.

[0019]

As described above, according to the first aspect of the present invention, since a plurality of idle gear trains are interposed between the drive pinion and the passive gear, the tooth width is divided into a plurality of the conventional values. The entire gear can be downsized to reduce its weight. Further, since the drive pinion is provided with the floating mechanism, it is possible to evenly transmit the power to the plurality of idle gear trains, prevent uneven contact, and perform smooth power transmission.

[Brief description of drawings]

FIG. 1 is a front sectional view of essential parts showing an embodiment of a drive device for a vertical circulation type multi-level parking device according to the present invention.

FIG. 2 is a side sectional view of the drive device.

FIG. 3 is an explanatory view showing a floating mechanism of the drive unit.

FIG. 4 is a schematic configuration diagram illustrating the multi-level parking device.

FIG. 5 is a side sectional view showing another embodiment of the floating mechanism.

FIG. 6 is a front sectional view showing a drive device of a conventional multi-level parking device.

[Explanation of symbols]

 11 Upper sprocket (wheel) 12 Lower sprocket (wheel) 13 Chain 14 Link arm 15 Cage (storage member) 16 Drive device 21 Drive motor (drive means) 22 Drive pinion 23 Passive gear 24A, 24B Idle gear train 25 Floating mechanism 30 Support frame 31A Input end idle gear 31B Intermediate idle gear 31C Output end idle gear 32 Drive shaft 33 Gear coupling 34 Swing support pin 35 Swing frame 41 Reducer

Claims (2)

[Claims] 1. A drive device in a vertical circulation type storage device in which a chain is wound between a plurality of vertically arranged sprockets and storage members are arranged at regular intervals between the chains, the sprockets comprising: A plurality of idle gear trains, in which idle gears at the output end mesh, are arranged in parallel with each other in a passive gear that is integrally provided in, and meshes with the idle gears at the input end of these idle gear trains, respectively, and is rotated by the drive means. A drive device in a vertical circulation type storage device, characterized in that a drive pinion is provided. 2. A floating mechanism is constructed by arranging the drive pinion between a pair of idle gears at an input end of an idle gear train, and a swing frame swingable about an axis parallel to an axis of the idle gear. The drive device in the vertical circulation type storage device according to claim 1, wherein.