JP2769674B2 - Traveling trolley for mechanical parking equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mechanical parking device for transferring a vehicle to a parking room by relaying a traveling vehicle, and more particularly, relates to a mechanical parking device for a vehicle placed on a traverse conveyor for front wheels of the traveling vehicle. The present invention relates to an improvement in a front wheel stopper device for fixing a front wheel.

[0002]

2. Description of the Related Art A traveling truck of a conventional mechanical parking device will be described with reference to FIG. The front wheel stopper device for restricting the movement in the front-rear direction with the front wheel 51 of the vehicle 50 sandwiched between the front and rear is provided with a male screw portion on a horizontal shaft 41 orthogonal to the transfer direction of the conveyor 40 on the traveling vehicle 39, and a front wheel holding member 42 , A clamping member) is provided with a support member 42a, and the support member 42a is provided with a female screw portion to be screwed with the male screw portion.
A ball screw portion A comprising a support member 41 and a support member 42a is formed. Then, power is transmitted to the horizontal shaft 41 by a driving means 43 such as a motor, and by the advance of the ball screw portion, the front wheel holding member 42 is moved forward and backward, and the front wheel holding member 42 is also supported. . Also, the front wheel holding member 42 is a front wheel.
As a limiter for stopping the movement of the holding member 42 when it comes into contact with 51, a tape-shaped pressure sensing switch 44 attached to the front end portion 42b of the front wheel holding member 42 is provided, or the front wheel holding member as shown in FIG. The transmission type electric light switch 45 provided on both sides of the tip of the 42 detects the state where the holding member 42 is in contact with the front wheel 51 or the state immediately before the contact, and drives the motor 43 in the approach direction by the detection signal. It stops automatically. These are already disclosed in Japanese Utility Model Laid-Open No. 1-150766 and Japanese Patent Laid-Open No. 2-210171.

[0003]

However, in the structure in which the front wheel holding member 42 is supported by the ball screw portion A as described above, it is difficult to have sufficient rigidity against a load, and the holding member 42 When contacting the front wheel 51, it is necessary to newly provide a receiving member 46 for receiving a load and a supporting member such as a supporting roller 47. Further, the method of operating the front wheel holding member 42 by the thrust of the ball screw has a drawback that the operation is slow, which has been a factor that hinders a user's demand for a high-speed parking and exiting in a parking lot.
In addition, since high precision is required for individual parts of the ball screw, there have been problems such as an increase in manufacturing cost and a troublesome maintenance.

Further, in a method in which a pressure sensing switch 44 is attached to the tip of the holding member as a limiter for stopping the advancement of the front wheel holding member 42, durability is impaired by friction or impact because the front wheel directly contacts the switch. That is, in the case of the transmission type electro-optical switch, even if one of the light emitter and the light receiver of the switch is contaminated, there is a problem that the sensing ability is remarkably reduced, and a spare limiter when the limiter fails. Was not provided.

The present invention has been made in view of the above problems, and has as its object to reduce the number of support members for receiving a load by increasing the rigidity of a support member that supports a holding member. Also, as a limiter for transmitting the operation of the front wheel holding member of the traveling vehicle by transmitting the power of the electric motor by a chain via a sprocket, thereby making the operation quick and stopping the movement of the holding member,
An object of the present invention is to provide a front wheel stopper device for a traveling vehicle for a mechanical parking device, which is provided with a mechanical limit switch as a spare limiter using a sensor.

[0006]

According to the present invention, there is provided a vehicle, comprising: a plurality of parking rooms arranged along a traveling path of a traveling vehicle; In a mechanical parking device in which a front wheel traverse conveyor and a rear wheel traverse conveyor for transferring vehicles between each other are arranged side by side, a tip portion is provided above the front wheel traverse conveyor of the traveling vehicle. A pair of support arms having a front wheel holding member are disposed opposite to each other in the front-rear direction of the traveling vehicle, and each of the support arms is movably disposed in the front-rear direction of the traveling vehicle below the front-wheel lateral feed conveyor. Each of the sliders is slidably fitted on a slide bar fixed on a traveling carriage, and provided with two driving means for independently driving the sliders. And it features.

In the present invention, the power of the driving means is
It is desirable to transmit to the slider by a chain via a sprocket. Further, it is desirable to provide a sensor for detecting contact between the front wheel holding member and the front wheel of the vehicle. Further, the support frame extending from the slider has a cylindrical portion parallel to the slide bar, and the support arm is slidably fitted into the cylindrical portion, and is always held by the coil spring on the front wheel holding side. It is desirable to provide a displacement detecting means for detecting the displacement of the support arm at the end of the cylindrical portion of the support frame.

[0008]

A pair of support arms, each having a front wheel holding member at a front end thereof, are disposed above the front-wheel lateral feed conveyor of the traveling vehicle so as to face each other in the front-rear direction of the traveling vehicle.
The front carriage is supported by a support frame extending from a pair of sliders disposed under the front-wheel transverse conveyor so as to be movable in the front-rear direction of the traveling carriage, and each of the sliders is slidable on a slide bar fixed on the traveling carriage. The fitting allows the support frame extending from the slider to receive all the load applied to the front wheel holding member when the front wheel holding member comes into contact with the front wheel. Also, by providing two driving means for independently driving the sliders, different displacement amounts can be given by the front and rear sliders.

When the power of the driving means is transmitted to the slider by a chain via a sprocket, the reduction ratio of the sprocket can be easily set, and a high level of component precision is not required. Further, when a sensor for detecting the contact between the front wheel holding member and the front wheel of the vehicle is provided, the front wheel does not directly contact the sensor, so that the sensor does not deteriorate due to repeated use. Further, the support frame extending from the slider has a cylindrical portion parallel to the slide bar, and the support arm is slidably fitted into the cylindrical portion, and is always held by the coil spring on the front wheel holding side. When the sensor breaks down by forming a mechanical limit switch by being biased to and providing a displacement detecting means for detecting a displacement amount of the support arm at an end of the cylindrical portion of the support frame. Can be operated as a spare limiter.

[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 shows a mechanical parking device embodying the present invention. The traveling trolley 1 can move horizontally on the traveling rail 2 via the wheels 1a. A traveling path 3 having a width that allows the traveling carriage to move is provided along the traveling rail 2, and a plurality of rows and a plurality of rows of parking rooms 4 are provided beside the traveling path. ing. In FIG. 5, the parking room 4 is shown on only one side of the guide rail, but parking rooms are often provided on both sides.

In each of the parking rooms 4, a front-side traverse conveyor 4a (hereinafter, referred to as a front conveyor) and a rear-side traverse conveyor 4b (hereinafter, referred to as a front conveyor) serving as vehicle delivery means are provided on the floor of each room.
Rear conveyor) is provided toward the traveling path 3. In particular, the front conveyor 4a is provided with a positioning device (not shown) for the front wheels in the front-rear direction. In addition, an entrance / exit room 5 for entering and exiting a vehicle is provided in one corner of a number of parking rooms. In some cases, a vehicle elevator (not shown) may be provided in the entry / exit room 5 to send the vehicle to the upper floor or to the outside of the parking device. An elevator may be provided.
In some cases, a storage room and a storage room are separately provided. In the case of the three examples, the traveling cart 1 and the traveling rail 2
Is provided. Furthermore, without providing a lifting device in one of the parking rooms,
The traveling vehicle 1 may be provided with a lifter as an elevating device. In this case, as shown in FIG. 5, the traveling cart 1 and the traveling rail 2 are provided as a set on the lowest floor.

The traveling truck for a mechanical parking device will be described with reference to FIGS. 6 and 7. FIG. FIG. 6 shows a traveling carriage 6 with a lifter. Elevator frame 8 on traveling trolley frame 7
Are provided at four corners, and an elevating device frame 9 using the frame 8 as a guide is provided so as to be vertically movable. The lifting / lowering device frame 9 is connected to a lifting / lowering motor 11 via a lifting / lowering chain 10 connected endlessly via a counterweight 10a. On both sides of the traveling bogie frame 7, traveling wheels 7a traveling on the traveling rail 2 are provided, and are driven by a traveling motor 11a on the traveling bogie frame 7.

The hoisting and lowering device frame 9 has a front-wheel transverse conveyor 12 (hereinafter referred to as a front conveyor) and a rear-wheel transverse conveyor 13 (hereinafter, referred to as a front conveyor) extending in a direction crossing the traveling path 3.
A rear conveyor is provided), and is installed at the same width and interval as the above-described conveyors 4a and 4b provided for each of the parking rooms 4. The lifting device frame 9 carrying the transport vehicle can be raised and lowered by driving the lifting motor 11 even while the traveling vehicle 1 is traveling on the traveling rail 2. A support arm 15 that supports a pair of front and rear front wheel holding members 14 is disposed above the conveyor 12.

FIG. 7 shows a traveling vehicle 6a without a lifter. The difference from the traveling carriage 6 with the lifter described above is that the front conveyor 12 and the rear conveyor 13 are provided directly on the traveling carriage frame 7. In addition, the mechanism for traveling on the traveling rail and the point that the front wheel holding member 14 is provided above the conveyor 12 are the same.

Next, the operation of the mechanical parking device will be described with reference to FIG. When parking the vehicle 50 in the entry / exit room 5,
First, the vehicle 50 enters the loading / unloading room 5 and puts the front wheels on the front conveyor 4a equipped with the front and rear positioning devices (not shown) to position the vehicle 1 in the front-rear direction. Vehicle 50
When the vehicle is transferred from the loading / unloading room 5 to the traveling vehicle 1, first, the front conveyor 4a and the rear conveyor 4b are driven to move in the direction of the traveling vehicle 1, and then the front conveyor provided on the traveling vehicle 1 It is moved to the center of the traveling carriage by the rear conveyor 12 and 12. At this time, the position of the vehicle in the front-rear direction does not change even if it is transferred to the traveling vehicle. Further, even when the vehicle 50 stops at an angle to the front-rear direction of the traveling vehicle 1 in the entry / exit room,
At the time of transfer from the loading / unloading room 5 to the traveling carriage 1, the feed is adjusted in a direction parallel to the carriage by adjusting the feed amount of the front and rear conveyors. Therefore, the front wheels of the vehicle 50 are always located at a predetermined position. Thereafter, the traveling vehicle 1 travels on the rail, for example, proceeds to the front of the parking room 4c, and
12 and rear conveyor 13 and front conveyor provided in parking room 4c
The vehicle 50 is transferred to, for example, the parking room 4c by the 4a and the rear conveyor 4b. At the time of leaving the warehouse, the operation is the reverse of that of entering the warehouse.

Here, a case where the front wheel stopper device for a vehicle of the present invention is used for a traveling vehicle 6 with a lifter will be described with reference to FIGS. As shown in FIGS. 1 and 2, a slide bar 17 is provided below the front conveyor 12 provided on the side frame 16 in the front-rear direction of the lifting / lowering device frame 9.
A pair is provided in the 50 width direction. This slide bar 17
A pair of slidable front and rear sliders 18 are provided on the upper side. From this slider 18, a support frame 19 extends above the front conveyor 12. The support frame 19 has a cylindrical portion 19a and a connection portion 19b parallel to the slide bar 17,
The support arm 15 is slidably provided on the inner cylinder of the cylindrical portion 19a. A connecting member 19c is provided in the width direction of the vehicle 50, and a pair of support frames are connected by a connecting portion 19b. Support arm
A coil spring 20 is arranged on the outer circumference of the support 15 and the support arm 15 and the cylindrical portion 19a are engaged with each other.
Restricts the position of the support arm 15 in the direction of the front wheel 51. A front wheel holding member 14 (hereinafter, referred to as a holding member) is attached to a tip of the support arm 15. A limit switch 21 is provided at the rear end of the cylindrical portion 19a. Connection 19b
Is provided with a proximity sensor B for detecting the positions of the forward end and the backward end of the support frame 19. Since the support arm 15, the slide bar 17, the slider 18, and the support frame 19 have sufficient rigidity against the load received when they come into contact with the front wheel 51, the support arm 15, the slide bar 17, the slider 18, and the No support member is required.

The lifting device frame 9 has an electric motor 22 with a brake (hereinafter referred to as a motor) as a driving means.
Are provided independently for the front and rear support frames 19 one by one. Motor 22 has sprockets 23, 24, 25
And 26 are connected to the slider 18 by chain driving means including chains 27 and 28.

Here, the operation method of the present invention will be described with reference to FIG. The vehicle 50 transferred onto the front conveyor 12 and the rear conveyor 13 arranges the front wheels 51 at substantially fixed positions on the front conveyor 12. At this time, by transmitting the driving force of the motor 22 to the slider 18 by the chain driving means,
The holding member 14 is moved toward and away from the front wheel 51. Assuming that the rotation speed of the motor is constant, the operation speed of the slider 18 can be set freely by setting the reduction ratio of the chain drive means. As shown by a two-dot chain line in the figure,
Is moved to a position where it contacts the front wheel 51, the proximity sensor B senses it as the forward end, and stops the operation of the motor 22.
Also, since the motor 22 is provided independently for the front and rear sliders, it is possible to give separate front and rear displacement amounts, even if the front wheel position is shifted back and forth, until the front wheel abuts each. It can be pinched close to and from the front and back.

Next, a case where the proximity sensor B does not operate due to a failure or the like will be described. Normally, it is in contact with the front wheel 51 in the state shown in FIG. 3A, and the coil spring 20 is in a state where the position of the front wheel holding member 14 is regulated with respect to the cylindrical portion 19a as shown in the figure. However, if the sensor does not operate, even after the holding member 14 abuts on the front wheel 51, the slider 18 is moved in the direction in which the slider 18 approaches, so that the coil spring 20
When the slider 18 is displaced, it contracts as shown in FIG. 3 (b), and the support arm 15 slides on the inner cylindrical portion of the cylindrical portion 19a.
Due to the displacement of the support arm 15, the limit switch 21 provided at the rear end of the tubular portion 19a is operated, and the operation of the motor 22 is stopped. Also, as shown in FIG. 3C, even when the front wheel position is extremely shifted back and forth, the holding member 14 contacts the front wheel 51 before the proximity sensor B operates, and Because it will shorten the spring 20,
Similarly, the limit switch 21 is operated, and the operation of the motor 22 is stopped.

This operation will be described with reference to the flowchart of FIG. After the front wheel 51 of the vehicle 50 rides on the front conveyor 12 and the motor 22 operates (29), the slider
18 advances, and the front wheel holding member 14 contacts the front wheel (30).
Here, when the proximity sensor B operates normally (31) and the front wheel is at a predetermined position and the slider 18 is moved to a position where the proximity sensor B operates (32), the proximity sensor B
A signal indicating the more advanced end is sent to the signal processing means, and when the signal processing means is operated (36), the motor 22 is stopped (37). When the front wheel is far from the predetermined position, as shown in FIG.
Before reaching the position where is operated, the coil spring 20 contracts (33) and the limit switch 21 operates (35). A signal for operating the limit switch is sent to the signal processing means, and the motor 22 is stopped by operating the signal processing means (36) (37). When the proximity sensor B does not operate normally due to a failure or the like, the coil spring 20 contracts (33) and the limit switch 21 operates (35) as shown in FIG. 3B. A signal for operating the limit switch is sent to the signal processing means, and the motor 22 is stopped by operating the signal processing means (36) (37). The above limit switch
Since the support arm 15 operates by a mechanical operation in which the support arm 15 slides with respect to the cylindrical bias 19a, the reliability as a spare limiter is high.

The traveling vehicle 6 holding the front wheel 51 of the vehicle 50 as described above starts moving. When the move is complete,
The motor 22 operates in a direction in which the holding member 14 is separated from the front wheel 51, and when the proximity sensor B detects the reverse end, the motor 22
Stop 22. The present invention is also applicable to a traveling vehicle 6a having no lifter.

[0023]

According to the present invention, the following effects are obtained. When the front wheel holding member contacts the front wheel, the load applied to the front wheel holding member can be all received by the support frame extended from the slider, so there is no need to add a new support member for the front wheel holding member. An increase in the number of parts can be suppressed. In addition, since the front and rear sliders can give different amounts of displacement, even when the front wheel position is shifted from the predetermined position to the front and rear, the front wheels can approach each other until they come into contact with the front wheels and can be sufficiently clamped from the front and rear.

In the case where the power of the driving means is transmitted to the slider by a chain via a sprocket, the reduction ratio of the sprocket can be easily set, so that the operation of the support frame can be easily performed at a high speed. The operation as a parking garage becomes faster, which in turn helps to enter and exit the parking garage at high speed. Further, since a high level of component accuracy is not required, the unit cost of the component can be kept low and the maintenance is easy.

When a sensor, which is a limiter for detecting the contact between the front wheel holding member and the front wheel of the vehicle, is provided, the front wheel does not directly contact the sensor. Is improved. Furthermore,
By providing a limit switch as a spare limiter when the sensor fails, safety is further improved.

[Brief description of the drawings]

FIG. 1 is a front view of a front wheel stopper device of a vehicle placed on a traveling vehicle, showing one embodiment of the present invention.

FIG. 2 is a top view of a front wheel stopper device of the vehicle placed on a traveling vehicle, showing one embodiment of the present invention.

FIG. 3 is an operation explanatory view of a front wheel stopper device of a vehicle placed on a traveling vehicle, showing one embodiment of the present invention.

FIG. 4 is a flowchart showing the operation of the front wheel stopper device of the vehicle placed on the traveling vehicle, showing one embodiment of the present invention.

FIG. 5 is a schematic diagram of a mechanical parking device showing one embodiment of the present invention.

FIG. 6 is a schematic view of a traveling vehicle with a lifter for a mechanical parking device, showing one embodiment of the present invention.

FIG. 7 is a schematic view of a traveling vehicle for a mechanical parking device showing one embodiment of the present invention.

FIG. 8 is a schematic diagram of a conventional example.

FIG. 9 is a schematic diagram of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Traveling trolley 3 Running path 4 Parking room 4a Front-wheel traversing conveyor 4b Rear-wheel traversing conveyor 6 Traveling trolley with lifter 6a Traveling trolley without lifter 12 Front conveyor 13 Rear conveyor 14 Front wheel clamping member 15 Support arm 17 Slide bar 18 Slider 19 Support frame 19a Cylindrical part 20 Coil spring 21 Limit switch 22 Drive means 23 Sprocket 24 Sprocket 25 Sprocket 26 Sprocket 27 Chain 28 Chain B Proximity sensor

Claims (5)

(57) [Claims] 1. A traverse conveyor for front wheels and a rear wheel for transferring vehicles between the traveling vehicle and each of the parking rooms, wherein a plurality of parking rooms are provided along a traveling path of the traveling vehicle. And a pair of support arms each having a front wheel holding member at a front end thereof, in a front-rear direction of the traveling vehicle, above the front wheel lateral conveying conveyor of the traveling vehicle. The support arms are arranged below the front wheel traverse conveyor so as to be movable in the front-rear direction of the traveling cart, and are supported by a support frame extending from a pair of sliders.
A traveling vehicle for a mechanical parking device, comprising two driving means which are slidably fitted on a slide bar fixed on the traveling vehicle and independently drive the sliders. 2. The traveling vehicle for a mechanical parking device according to claim 1, wherein the power of the driving means is transmitted to the slider by a chain via a sprocket. 3. The traveling vehicle for a mechanical parking device according to claim 1, further comprising a proximity sensor for detecting contact between the front wheel holding member and the front wheel of the vehicle. 4. A support frame extending from a slider has a tubular portion parallel to the slide bar, and the support arm is slidably fitted in the tubular portion and is always slid by a coil spring. The traveling vehicle for a mechanical parking device according to any one of claims 1 to 3, wherein the traveling vehicle is biased toward a front wheel holding side. 5. The traveling vehicle for a mechanical parking device according to claim 4, wherein a displacement detecting means for detecting an amount of displacement of the support arm is provided at an end of the cylindrical portion of the support frame.