JP3023574B2 - Vehicle turning device of multi-story parking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-story parking system capable of accurately determining whether or not a vehicle can be parked by measuring the weight of the vehicle when the vehicle is lifted and turned on a turntable. The invention relates to a vehicle turning device.

[0002]

2. Description of the Related Art An elevator-type multi-story parking device transports a vehicle by an elevator and efficiently stores the vehicle in a high-rise structure. Therefore, a rated load is set for an elevator for transporting a vehicle, a parking space for storing a vehicle, and the like, and a vehicle having a weight exceeding this must be refused to enter the warehouse.

[0003] In response to such a situation, the conventional 4
A vehicle that exceeds the rated load by installing a so-called truck scale near the entrance of a multi-story parking device that supports the corners with a load cell and measures the vehicle weight of the vehicle guided on the on-board stand by the total value of the indicated values of each load cell It is known how to refuse storage. In this case, the vehicle whose entry has been refused is usually turned by self-propelled and exited.

[0004]

According to the prior art, a truck scale is required separately from the multi-story parking device, and the truck scale is installed so that vehicles whose entry has been refused can change direction by self-propelled driving. There is a problem that not only the advantage of the multi-story parking device that requires vacant land and that effectively uses the narrow land is impaired, but also that excessive capital investment is required in an area where land prices are high. In addition, in terms of the operation of the parking lot, there is also a problem that, because the vehicle changes direction by self-propelled and exits, the entry / exit work does not proceed smoothly, and congestion of the following vehicle is inevitable.

Accordingly, an object of the present invention is to provide a vehicle turning device used for changing the direction of an incoming and outgoing vehicle with a pressure sensor, thereby omitting a truck scale and a place for changing the direction of the vehicle, as well as omitting the following vehicle. It is an object of the present invention to provide a vehicle turning device of a multi-story parking device that can effectively eliminate the traffic jam.

[0006]

According to the present invention, there is provided a lift mechanism driven by a hydraulic cylinder, a pressure sensor for detecting an operating oil pressure of the hydraulic cylinder, and a vertical movement by the lift mechanism. It consists of a turn mechanism with a turntable that supports freely, the lift mechanism lifts the incoming vehicle on the turntable, and the turn mechanism is the largest vehicle that can store the operating oil pressure of the hydraulic cylinder detected by the pressure sensor. The gist is to control the rotation of the turntable in the exit direction when the rated value corresponding to the weight is exceeded.

[0007] The lift mechanism may be configured in a pantograph shape and include a level sensor for detecting that the turntable has risen to a predetermined level.

Further, a hydraulic signal from a pressure sensor may be used to control the elevating speed of the elevator for transporting the vehicle.

[0009]

According to the structure of the present invention, when the incoming vehicle is loaded on the lift mechanism via the turn mechanism, the lift mechanism is actuated by the hydraulic cylinder to lift the vehicle. , And the vehicle can be turned in an arbitrary direction. On the other hand, the operating oil pressure of the hydraulic cylinder in this state can be detected by the pressure sensor, and the detected operating oil pressure has a proportional relationship with the vehicle weight. Therefore, the turn mechanism turns the turntable in the loading direction when the operating oil pressure of the hydraulic cylinder is equal to or less than the rated value corresponding to the maximum vehicle weight of the vehicle that can be stored, and moves out in the unloading direction when the operating oil pressure exceeds the rated value. By controlling the rotation of the turntable so that it turns, vehicles that cannot enter are automatically selected and the entry can be refused.

When a level sensor is provided in the lift mechanism, the level sensor detects that the turntable has risen to a predetermined level. Therefore, by reading a hydraulic signal from the pressure sensor at that time, the vehicle weight of the entering vehicle is read. Can be accurately detected.

Since the hydraulic signal from the pressure sensor indicates the vehicle weight of the entering vehicle, if this signal is used for controlling the elevator speed, the elevator speed pattern of the elevator carriage can be optimally selected. .

[0012]

Embodiments will be described below with reference to the drawings.

The vehicle turning device 30 of the multi-story parking device comprises a combination of a turn mechanism 10 and a lift mechanism 20 (FIG. 1).

The lift mechanism 20 interposes a pair of cross legs 23 between the lower frame 21 and the upper frame 22, and expands and contracts hydraulic cylinders 24 combined with the cross legs 23. By the upper frame 2
2 can be moved up and down (FIGS. 1 and 2). Each of the cross legs 23, 23 intersect at the center position, and the central axis C4
Are connected so as to be able to open and close. One end of each of the cross legs 23, 23 is swingably connected to the lower frame 21 and the upper frame 22 via support shafts C1, C1, respectively, and the other end is connected to the lower frame 21 and the upper frame 22, respectively. On the other hand, it is a free end that comes into contact with the position changeable via the rollers 23e, 23e. Cross leg 2
The free upper and lower ends of 3, 23 ... are connected by connecting shafts C2, C2, and the cross legs 23, 23 ... are assembled into a pantograph-shaped structure as a whole. An intermediate shaft C3 is provided between the upper connecting shaft C2 and the central shaft C4 near the central shaft C4.

The hydraulic cylinders 24, 24 are respectively provided with cross legs 23, 23 between the lower connecting shaft C2 and the intermediate shaft C3.
Is mounted in an inclined posture in close proximity to the camera. An oil tank 25 is provided on the lower frame 21, and the oil tank 25 and the hydraulic cylinders 24 are mounted on the oil pump 2.
7, are connected via an oil passage 26 (FIG. 1). In addition,
The oil pump 27 is driven by a drive motor M1, and a pressure sensor S1 is installed in the oil passage 26.

Between the lower frame 21 and the upper frame 22, a level sensor S2 for detecting a rising position of the upper frame 22 is mounted. Level sensor S2
Is attached to the tip of an extension bar 21b erected on the lower frame 21, and an extension bar 22b having a dog 22a at the tip is vertically suspended at a position corresponding to the upper frame 22. Then, when the upper frame 22 rises by an amount corresponding to the overlap amount of the extension bars 21b, 22b,
The level sensor S2 is operated by the dog 22a. The upper frame 22 extends the hydraulic cylinders 24, 24 at the same time, and sets the cross angle θ of each pair of cross legs 23, 23,.
1 rises while maintaining the horizontal posture by the opening operation in which it increases, and falls by the closing operation in which the intersection angle θ1 decreases.

The turn mechanism 10 includes a fixed outer ring 1.
2a rotatably supports the movable inner ring 12b, and the turntable 11 via the inner ring 12b.
Can be rotated horizontally in the forward and reverse directions. The turn mechanism 10 is supported by a lift mechanism 20 so as to be vertically movable.

Outer ring 12a, inner ring 12b
Constitutes a thrust bearing, and the outer ring 12a is positioned and fixed at the center of the upper frame 22. Gear teeth are formed on the inner peripheral surface of the inner ring 12b, and the inner ring 12b is an internal gear. The upper end face of the inner ring 12b is higher than the end face of the outer ring 12a, and the turntable 11 is fixed to the end face of the inner ring 12b. Positioning blocks 11a, 11a project from the upper surface of the turntable 11, and the positioning blocks 11a, 11a fit into recesses of a pallet (not shown) mounted on a vehicle, and prevent the pallet from being displaced.

The turntable 11 includes an upper frame 22
Is driven to rotate from the lower surface side. That is, the drive motor M2 and the speed reducer 14 are fixed to the lower surface of the upper frame 22, and the output shaft of the speed reducer 14 penetrates the upper frame 22 from bottom to top and engages with the pinion 13 that meshes with the inner ring 12b. Is attached to the shaft end. Therefore, when the drive motor M2 is rotated in the forward and reverse directions, the turntable 11 is rotated.
Can rotate forward and backward about the center line CL of the outer ring 12a as a rotation center.

The turn mechanism 10 and the lift mechanism 20 are electrically connected via a control device 28. Control device 2
8 receives a hydraulic signal m1 from the pressure sensor S1 and a level signal m2 from the level sensor S2.
8 outputs a control signal m3 to the drive motor M2.

Such a vehicle turning device 30 can be installed and used in a pit A4 formed on a floor F of a home position A1 of a parking building A in, for example, an elevator-type multi-story parking device (FIG. 3). .

The parking building A occupies a substantially square site required for the turning operation of the vehicle (FIG. 4), and a steel structure in which the entire first floor above the ground is allocated to a home position A1 for the vehicle to enter and leave the vehicle. The remaining part is divided into a lift space A2 at the center where the carriage 41 of the vehicle transport elevator 40 rises and lowers, and parking spaces A3, A3,... Formed in upper and lower tiers on both sides of the lift space A2. (FIG. 3). The vehicle turning device 30 is installed inside the pit A4 with the turntable 11 lowered below the floor level FL.

The carriage 41 includes chains 41a, 41
A can be moved up and down in the elevating space A2 by the upper drive unit 42 via a. The carriage 41 is a frame having a large opening at the center (FIG. 4), and can be lowered to the floor level FL without interfering with the vehicle turning device 30 (FIG. 3). The carriage 41 is provided with a horizontal feeder (not shown) for pulling out the pallets Pt to be mounted in the parking spaces A3 onto the carriage 41 and sending the pallets Pt from the carriage 41 to the parking spaces A3 for storage. ing.

At the time of entry of the vehicle, the carriage 41 is positioned at an arbitrary empty parking space A3 via the drive unit 42, and the pallet Pt is pulled out and loaded, and descends to the floor level FL. At this time, the direction of the pallet Pt coincides with the longitudinal direction of the carriage 41. After the carriage 41 stops at the floor level FL, the vehicle turning device 30 raises the turntable 11 so as to pass through the center of the carriage 41, lifts the pallet Pt, and turns the pallet Pt toward the entrance IN / OUT of the vehicle. (Two-dot chain line in FIG. 3), and is lowered on the floor F (FIG. 4). Therefore, the front and rear ends of the pallet Pt fit into the shallow recesses A4a, A4a formed on both sides of the pit A4, and the pit A4
Can be formed so as to be substantially flush with the floor surface F.

The incoming vehicle is moved in and out of the entrance I
From N, the vehicle enters the home position A1 and is loaded on the pallet Pt in the storage direction D1 of FIG. Then
The lift mechanism 20 is actuated, and the pallet Pt and the entering vehicle on the turntable 11 are lifted to a predetermined level at which the level sensor S2 operates, whereby the operating oil pressure P of the hydraulic cylinder 24 at that time is detected via the pressure sensor S1. Is done. Here, if the detected operating oil pressure P is P ≦ Po with respect to a rated value Po corresponding to the maximum vehicle weight of the vehicle that can be stored, the turn mechanism 10 rotates the turntable 11 by 90 degrees, If> Po, it is rotated by 180 degrees, and then the lift mechanism 20 returns to its original position. That is, in the former case, the vehicle is oriented in the transport direction D2 in FIG.
In the case of the latter, it turns to the exit direction D3 in FIG.
The former vehicle drives the elevator 40,
The vehicle is carried into a predetermined parking space A3, and the latter vehicle can be instructed to exit outside assuming that the entry is refused.

In general, a pantograph type lift mechanism 20
When using the cross leg 2 even if the load is the same
The operating oil pressure P detected by the pressure sensor S1 fluctuates greatly depending on the magnitude of the intersection angle .theta.1 formed by 3, 23. Therefore, when the upper frame 22 rises to a certain level, that is, when the turntable 11 of the turn mechanism 10 rises to a predetermined level, the level sensor S2 crosses the legs 23, 23.
When the intersection angle .theta.1 becomes a constant value, a level signal m2 is sent to the control device 28, and the control device 28 reads the hydraulic signal m1 at this time, thereby obtaining the operating oil pressure P proportional to the vehicle weight of the entering vehicle. Can be detected.

The hydraulic signal m1 from the pressure sensor S1
Can also be sent to the drive section 42 of the elevator 40 and used to control the elevation speed of the elevator 40. That is, since the vehicle weight of the vehicle to be conveyed by the elevator 40 is transmitted to the drive unit 42 via the operating oil pressure P indicated by the hydraulic signal m1, the drive unit 42 By adjusting the acceleration / deceleration change rate and the maximum speed of the carriage 41, the lifting / lowering speed pattern of the carriage 41 can be optimally selected. The driving unit 42 stores the vehicle weight transmitted when the vehicle enters the parking space in correspondence with the parking space A3, and stores the vehicle weight when the vehicle leaves the carriage 41.
It can be reflected in the control of the descending speed of.

In the above description, the storage direction D1 in FIG.
, The exit direction D3 depends on the location of the entrance / exit IN.
It can be set in any direction other than that shown. In addition, it is assumed that the entrance / exit port IN is not provided commonly for entrance and exit, and may be provided separately.

The lift mechanism 20 includes cross legs 23, 2
In addition to the pantograph type using No.3, the upper frame 22 may be directly raised and lowered by one or two or more hydraulic cylinders. The level sensor S at this time
2 suffices to detect the level at which the upper frame 22 rises and the weight of the loaded vehicle shifts to the lift mechanism 20 via the turn mechanism 10.

Further, the lift mechanism 20 and the turn mechanism 10
Can be mounted on the carriage 41. Since the home position A1 can be installed at an arbitrary middle floor of the parking building A, an underground or semi-underground multi-story parking device can be easily constructed.

[0031]

As described above, according to the present invention, a lift mechanism driven by a hydraulic cylinder and a turn mechanism with a turntable are combined, and the hydraulic cylinder when the entering vehicle on the turntable is lifted is lifted. By providing a pressure sensor that detects the operating oil pressure of the vehicle, the turn mechanism controls the rotation of the turntable in the unloading direction when the operating oil pressure of the hydraulic cylinder detected by the pressure sensor exceeds the rated value. In addition to avoiding the danger of inadvertently entering a vehicle with an excessively heavy vehicle, vehicles refused entry can be
The turn mechanism turns the vehicle toward the exit direction, allowing the vehicle to exit smoothly in a short period of time without the need for a truck scale or a turning site, etc., and effectively eliminates traffic jams and the like of following vehicles. Has an excellent effect.

[Brief description of the drawings]

FIG. 1 is an explanatory view of the overall configuration in a longitudinal section.

FIG. 2 is an explanatory view of the right side of FIG.

FIG. 3 is an explanatory view of a use state.

FIG. 4 is a cross-sectional equivalent view taken along line YY of FIG. 3;

[Explanation of symbols]

 S1 ... pressure sensor S2 ... level sensor D3 ... retrieval direction P ... operating oil pressure Po ... rated value m1 ... hydraulic signal 10 ... turn mechanism 11 ... turntable 20 ... lift mechanism 24 ... hydraulic cylinder 30 ... vehicle turning device 40 ... elevator

Claims (3)

(57) [Claims] A lift mechanism driven through a hydraulic cylinder, a pressure sensor for detecting an operating oil pressure of the hydraulic cylinder, and a turn mechanism with a turntable supported vertically by the lift mechanism, The lift mechanism lifts the incoming vehicle on the turntable,
The turn mechanism controls the rotation of the turntable in the unloading direction when an operating oil pressure of the hydraulic cylinder detected by the pressure sensor exceeds a rated value corresponding to a maximum vehicle weight of a vehicle that can be stored. Vehicle turning device for multi-story parking device. 2. The vehicle turning device according to claim 1, wherein the lift mechanism has a pantograph shape, and includes a level sensor that detects that the turntable has risen to a predetermined level. . 3. The vehicle turning device for a multi-story parking device according to claim 1, wherein a hydraulic signal from the pressure sensor is used to control a lifting speed of the vehicle transport elevator.