JPH07238705A - Travelling truck for mechanical type parking device - Google Patents

Abstract

PURPOSE:To simplify the structure of the lifter of a travelling truck with the lifter. CONSTITUTION:Posts 10 are located in upright at the four corners of a truck frame 9 for a travelling truck 1, and a lifting-lowering base 15 lifted and lowered and guided by the posts 10 is arranged. An upper sprocket 21 and a lower sprocket 22 are borne to beams mounted on the posts, and a counterweight 24 is interposed on its midway of a first cable-shaped body 23 stretched endlessly on the upper and lower sprockets. A driving means 26 rotating and driving the lower sprocket 22 is arranged onto the truck frame 9. Second cable- shaped bodies 29 are arranged in tension among the beams and the truck frame 9 installed to the two posts arrayed on the front and rear sides in the travelling direction of the travelling truck through front and rear sprockets 27, 28 set up at the front and rear ends of the lifting-lowering base 15. The first cable- shaped body lifting and lowering the lifting-lowering base is stretched simply, and balance can be kept by the second cable-shaped bodies as the balance means of the lifting-lowering base even when the first cable-shaped body is mounted only at one end of the lifting-lowering base.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mechanical parking apparatus for relaying a traveling vehicle and delivering the vehicle to a parking room, and more particularly to an improvement of a traveling vehicle with a lifter which is an elevating device for the vehicle.

[0002]

2. Description of the Related Art Conventionally, a vehicle lifting device for a mechanical parking system having a plurality of parking hierarchies uses the following method. First, as an example, a vertical transfer device for vertically moving the vehicle over the entire parking device is provided, and horizontal traveling carriages are provided in multiple stages along the hoistway of the vertical transfer device. With these horizontal traveling carriages, the vehicle is received from the vertical transfer device, and the received vehicle is transferred horizontally,
Vehicles are delivered to and from a plurality of parking chambers provided along the traveling passages on the side of the traveling passages of the respective horizontal transfer devices. As another example, there is one in which an elevating device (hereinafter referred to as a lifter) is provided on the traveling carriage itself and the vertical transport device is not separately provided. The latter trolley with a lifter is used for a mechanical parking device having about two to three parking levels, in which an independent vertical transfer device with high equipment cost is overloaded. These conventional examples have already been disclosed in Japanese Utility Model Laid-Open No. 1-150765 and Japanese Patent Laid-Open No. 4-55575.

The traveling carriage with lifter disclosed in the above-mentioned references uses a hydraulic cylinder as its lifting device,
The traveling carriage frame and the lifting platform are connected by an X-shaped link so as to be able to move up and down, and the crossing angle of the X-shaped link is changed, so that the lifting platform moves up and down while maintaining a horizontal state above the traveling carrier frame. there were.

[0004]

However, in the traveling carriage with lifter using the hydraulic cylinder as the lifting device, it is necessary to use a cylinder and a piston rod that are long according to the lifting distance. Was naturally limited. Further, when oil leaks from the hydraulic circuit for operating the hydraulic cylinder, there is a possibility that the vehicle on the traveling carriage may be soiled. Furthermore, in the case of using the X-type link, the length of the X-type link naturally determines the ascending / descending distance, so it is difficult to extend to a height that exceeds two levels with a link that can be accommodated in the traveling carriage. It was In order to freely set the vertical distance, there is a method of using a cord and a counterweight, which is used in general elevators, but it is complicated to hang the cord,
Since it is necessary to take a space for the counterweight to ascend and descend and a drive means needs to be provided above, the center of gravity becomes high and it is difficult to mount the counterweight on a traveling carriage.

The present invention has been made in view of the above problems. As a lifter for a traveling carriage, the lifting platform and a counterweight are endlessly hung by a cord to simplify the structure and to provide a traveling carriage. It is intended to provide a traveling carriage for a mechanical parking device, which can be mounted on a vehicle.

[0006]

Means for Solving the Problems According to the present invention for solving the above-mentioned problems, a plurality of parking chambers are arranged along a traveling path of a traveling carriage, and the traveling carriage and the parking compartment are connected to each other. In a mechanical parking apparatus provided with a vehicle delivery means for delivering a vehicle by means of the above, the columns are erected at four corners of the bogie frame of the traveling carriage, and the vehicle delivery means is provided on the bogie frame. An elevating table is provided for elevating and lowering, and an upper sprocket and a lower sprocket are supported by two columns arranged on the front side or the rear side of the traveling direction of the traveling carriage, and the upper and lower sprockets are endlessly wound. A counterweight is interposed in the middle of the first cord-shaped body, drive means for rotating and driving the lower sprocket is arranged on the bogie frame, and the drive means for driving the traveling bogie is arranged. Or, via the front and rear sprockets provided at the front and rear ends of the lifting platform between the upper part of one of the two columns arranged on the rear side and the bogie frame located on the other column side. It is characterized in that the second cord-shaped body is stretched.

In the present invention, it is preferable that the guide rail structure of the elevator is provided on the pillars at the four corners, and the guide rollers attached to the elevator are provided so as to travel on the guide rail structure.

[0008]

The columns are erected at the four corners of the bogie frame of the traveling bogie, and the elevating platform having the vehicle delivery means and guided up and down by the columns is arranged on the bogie frame.
The upper and lower sprockets are supported by two columns arranged on the front side or the rear side of the traveling direction of the traveling carriage, and the upper and lower sprockets are endlessly wound around the first cord. The interposition of the counterweight simplifies the running of the cord and the operation of the counterweight is within the movable range of the cord, so that it is not necessary to separately provide a lifting space for the counterweight. Further, the center of gravity can be kept low by disposing the drive means for rotating the lower sprocket on the carriage frame. Further, between the upper part of either one of the two columns arranged on the front side or the rear side of the traveling direction of the traveling carriage and the truck frame located on the other column, the front and rear of the lifting platform By stretching the second cord through the front and rear sprockets provided at the ends, even if the lifting force is transmitted to only one end of the lifting platform, the front and rear ends of the lifting platform are balanced. You can go up and down while standing.

Further, the guide rail structure of the elevator is provided on the pillars at the four corners, and the guide rollers attached to the elevator are
When it is provided so as to travel on the guide rail structure, the strut which is the basic structure of the lifter is also used as the guide rail, so that the structure is simplified.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 5 is a mechanical parking system embodying the present invention. The traveling carriage 1 with lifter is horizontally movable on traveling rails 3 via wheels 2. Along the traveling rail 3, a traveling path 4 having a width in which a traveling vehicle can move is provided along the traveling rail, and a parking room 5 is provided on the side of the traveling path in a plurality of stages and a plurality of rows. There is. Although the parking room 5 is shown only on one side of the guide rail in FIG. 5,
Parking rooms are often provided on both sides.

One of the parking rooms 5 is particularly used as a loading / unloading room 6 for loading and unloading the vehicle 50 inside and outside the mechanical parking apparatus. In addition, there may be a case where a storage room for loading the vehicle 50 and a storage room for loading the vehicle 50 are separately provided. In the parking room 5 and the loading / unloading room 6, respectively, a front-wheel lateral feed conveyor 7 (hereinafter referred to as a front conveyor) and a rear-wheel lateral feed conveyor 8 (hereinafter referred to as a rear conveyor) for transferring in the width direction of the vehicle 50. Is called). Especially front conveyor 7
Is provided with a positioning device (not shown) for the front-rear direction of the front wheels, and the vehicle 50 always stops at a substantially fixed position with respect to the front conveyor 7. Also, depending on the vehicle, front wheels 51 and rear wheels 52
Although the inter-axle distance is different, by increasing the length of the rear conveyor in the vehicle front-rear direction, the rear wheel 52 can be housed within the range of the rear conveyor 8 for both vehicles with short and long inter-axle distances.

Next, the traveling vehicle 1 with lifter will be described with reference to FIGS. Four columns 10 are erected vertically on the four corners of the carriage frame 9. The upper ends of the pillars 10 arranged on the front or rear side are connected by beams 11 in the width direction of the vehicle body, and the middle parts of the pillars are connected by a reinforcing frame 12 in the front-rear direction and a reinforcing frame 13 in the width direction of the vehicle 50. , Four columns
The 10 are rigidly assembled together to form the outer shell structure 14 of the lifter. As shown in FIG. 4, a guide rail structure 10a is provided on the column, and an elevating table 15 is provided via a guide roller 16 so as to be able to elevate and lower the inside of the outer shell structure 14. Lift 15
Can move up and down even when the traveling carriage 1 is traveling on the traveling rail 3. The lifting platform 15 has, on its upper surface, a front-wheel lateral feed conveyor 17 (hereinafter referred to as a front conveyor) and a rear-wheel lateral feed conveyor 18 (hereinafter referred to as a rear conveyor) for transferring in the width direction of the vehicle 50. . The front conveyor 17 and the rear conveyor 18 have the same length and the same interval as the front conveyor 7 and the rear conveyor 8 provided in the parking room 5 and the loading / unloading room 6, respectively. When the traveling vehicle 1 advances in front of the parking room 5 and the loading / unloading room 6 and delivers the vehicle, each of the conveyors is used as vehicle delivery means. To move the traveling carriage 1, the wheels 2 are provided on a plurality of wheel shafts 19 provided in the width direction of the vehicle 50 on the side surface of the carriage frame 9, and the wheel shafts are driven by a traveling motor 20 attached to the carriage frame. It travels on the traveling rail 3.

An upper sprocket 21 is provided on one of the front and rear of the beam 11, and a lower sprocket 22 is provided directly below the upper sprocket 21 and at the lower end of the column. The upper and lower sprockets have a first chain that is a first cord-like body.
The counter weight 24 is mounted around the middle portion of the chain 23, and both ends of the chain 23 are attached to the upper surface and the lower surface of the front end or the rear end of the lifting table 15. Therefore, the chain
23 is connected endlessly via a counterweight 24 and a lift 15. The drive sprocket 25 having the same rotation axis as that of the lower sprocket 22 is rotationally driven by a lifting motor 26, which is a drive means arranged on the traveling carriage, so that the lift 15 is raised and lowered. That is, the lifting platform is towed upward only at either one of the front end and the rear end, and the power is transmitted.

As described above, since the lifting table 15 is pulled upward only at one end thereof, it has the following balancing means in order to maintain the level with the other end. The balancing means is
A second chain which is a second cord-like body in which a front sprocket 27 and a rear sprocket 28 are arranged at the front and rear ends of the lower surface of the lift 15 and one end 29a is fixed to either the front or rear of the beam 11. The other end 29b is stretched on the bogie frame 9 via the front sprocket 27 and the rear sprocket 28. When one end 29a of the chain 29 is fixed to the front beam 11, the other end 29b is fixed below the beam 11 behind the bogie frame 9. Also, one end 29
When a is fixed to the rear beam 11, the other end 29b is fixed below the front beam 11 of the bogie frame 9.

Upper and lower sprockets 21 and 22 which are transmission means for transmitting power to the lifting table 15 and the first chain
Two sets of 23, the front and rear sprockets 27, 28, and the second chain 29, which are balancing means, are arranged side by side in the width direction of the vehicle 50. Also, if each of the transmission means and the balancing means is provided in one set, the number of parts is reduced, which leads to cost reduction, and in the case of each of three sets, the operation of the lifting table 15 is performed more accurately. Like

[0017]

As described above, the present invention has the following effects. By connecting the lifting platform and the counterweight endlessly using a cord, it is easy to hang the cord and there is no need to provide a separate lifting space for the counterweight. It is possible to mount a transmission means using a cord. Since the center of gravity can be kept low by disposing the drive means on the carriage frame, the traveling stability of the traveling carriage is not impaired. Further, by providing the balancing means between the column, the bogie frame, and the lifting table, even if the lifting force is transmitted to only one end of the lifting table, the lifting is performed while maintaining the balance between the front and rear ends of the lifting table. Therefore, the structure of the lifter can be simplified.

When the guide rails of the lifting table are provided on the pillars at the four corners and the guide rollers attached to the lifting table are provided so as to travel on the guide rails, the pillars which are the basic structure of the lifter are guided. Since it is also used as a rail, the structure is simple and the weight can be reduced. Further, since the hydraulic cylinder is not used for the operation of the lifting platform, the vehicle is not contaminated due to oil leakage from the hydraulic circuit.

[Brief description of drawings]

FIG. 1 is a schematic side view of a traveling carriage with a lifter showing an embodiment of the present invention.

FIG. 2 is a schematic front view of a traveling carriage with a lifter showing an embodiment of the present invention.

FIG. 3 is a schematic top view of a traveling carriage with a lifter showing an embodiment of the present invention.

FIG. 4 is an enlarged view of a portion S in FIG.

FIG. 5 is an overall schematic view of a mechanical parking device showing an embodiment of the present invention.

[Explanation of symbols]

 1 Traveling vehicle 5 Parking room 7 Front-wheel lateral feed conveyor 8 Rear-wheel lateral feed conveyor 9 Bogie frame 10 Pillar 10a Guide rail structure 15 Lifting platform 16 Guide roller 17 Front-wheel lateral feed conveyor 18 Rear-wheel lateral feed conveyor 21 Upper sprocket 22 Lower sprocket 23 1st cord 24 Counterweight 26 Lifting motor 27 Front sprocket 28 Rear sprocket 29 2nd cord

Claims (2)

[Claims] 1. A mechanical parking apparatus comprising a plurality of parking chambers arranged along a traveling path of a traveling carriage, and a vehicle passing means for passing vehicles between the traveling carriage and the parking chamber. The pillars are erected at the four corners of the carriage frame of the traveling carriage, and the elevating table having the vehicle delivery means and guided up and down by the pillars is arranged on the carriage frame, and the front of the traveling carriage in the traveling direction. Alternatively, two struts arranged on the rear side are made to support an upper sprocket and a lower sprocket, and a counterweight is interposed in the middle of a first cord-like body that is endlessly wound around the upper and lower sprockets. A drive means for rotating and driving the lower sprocket is arranged on a carriage frame, and an upper portion of one of two columns arranged on the front side or the rear side of the traveling direction of the traveling carriage, and the other. A second cord-shaped body is stretched between the bogie frame located on the side of one of the columns and the front and rear sprockets provided at the front and rear ends of the lifting platform. Trolley for mobile parking devices. 2. A guide rail structure for an elevator is provided on the pillars at the four corners, and guide rollers attached to the elevator are provided so as to travel on the guide rail structure. A traveling carriage for the mechanical parking device described.