JPH072886Y2 - Transverse multi-level parking system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a transverse type multi-level parking apparatus including a stop position control device capable of accurately stopping a transverse parking platform at a predetermined parking position. It is about.

(Prior Art) Conventionally, there has been known an upper and lower two-stage type three-dimensional parking device capable of parking a plurality of vehicles in parallel in a lower stage (lower side) and an upper stage (upper side). This device
Multiple pallet rows of parking stands (hereinafter referred to as "pallets") are provided in two rows, upper and lower, and the number of pallets in the lower row is one less than the number of pallets in the upper row. A space is formed in the lower pallet row, and the upper pallet at any position can be lowered into this space by moving this space in the lateral direction as appropriate. A space without a lower pallet is formed below an arbitrary pallet in the upper pallet row, and the upper pallet is moved up and down so that a parked vehicle at an arbitrary position parked in the upper tier is loaded or unloaded at any time. be able to. Since this device moves the lower pallet in the adjacent direction (transverse direction) as described above, it is generally referred to as a transverse multilevel parking device.

In addition, in this traverse type multi-level parking device, it is naturally necessary to enable the vehicles on each lower pallet to be traversed for loading and unloading of the vehicle parked in the upper tier as described above to be put in and out without any trouble. Therefore, for this purpose, it is required to accurately stop the pallet at a predetermined position while laterally driving the lower pallet. As a result, the vehicles on the lower pallet can be loaded and unloaded without making the adjacent distances of the parking spaces juxtaposed side by side unnecessarily large and without structural members such as stanchions provided at appropriate structural intervals interfering. This is because the requirement to be satisfied can be satisfied.

By the way, as a conventional device for laterally driving and stopping the lower pallet, for example, while moving the pallet by driving (rotating) the rolling wheels, the pallet traverses to a predetermined position to stop the lateral traverse. A system in which a pallet is moved in and detected by a limit switch to stop the pallet has been known as a typical one.

Further, in order to further improve the stop position accuracy of the traversing pallet, as shown in FIG. 3, for example, the pinion 3 coupled to the servomotor 2 and the rail-shaped rack 4 fixed to the traveling path are meshed with each other so that the pallet is engaged. A drive mechanism is configured so that the forward and reverse rotations of the pinion 3 are controlled by the servomotor 2 to move and stop the pallet 1, and the pinion and rack mechanisms are replaced and shown in FIG. There is also known a system in which the nut member 7 is fixed to the pallet 1 side, and the ground-side feed screw rod 6 screwed to the nut member 7 is rotated forward and backward by the servomotor 2.

Further, as shown in FIG. 5, an analog type differential pressure transformer 8 or the like is used as a stopping device for the traversing pallet 1, and the difference in the generated voltage due to the movement of the pallet 1 is amplified.
The pallet 1 is amplified by the
There is also known a method of determining the stop position of the.

(Problems to be solved by the invention) However, the conventional type of traverse pallet stop device is
For example, in the system using the limit switch described above, the weight of the pallet is moved after the drive mechanism is stopped, so that the weight of the pallet varies depending on the type of the parked vehicle. There is a problem that it is difficult to control well. This is particularly noticeable in a multilevel parking system that allows pallets to be moved relatively quickly for quick pallet movement, and in order to eliminate this, a large brake mechanism is used for braking when the pallets are stopped. It becomes necessary and causes an inconvenience to the equipment, and when a braking mechanism with a small braking force is used, the braking force becomes insufficient, and it becomes difficult to accurately control the stop position due to wheel slips or the like.

In addition, in a pinion / rack drive mechanism or a drive mechanism using a feed screw rod and a nut member, this type of multi-level parking device generally has different designs depending on the installation location. In addition, the mechanical configuration disadvantages such as the need for processing the feed screw rod and the feed screw rod become large, and in the case of a large multi-story parking apparatus, there is a disadvantage in equipment installation such as an increase in the cost of the drive mechanism.

Also, although the method using the differential pressure transformer has the advantage that the stop position of the pallet can be accurately controlled, maintenance for electrical signal processing systems such as differential pressure transformers and signal amplification amplifiers that need to be arranged at each parking position is required. There is a problem that the burden of inspection becomes large, and there is a problem that the entire apparatus becomes expensive.

The present invention has been made for the purpose of solving the drawbacks of the conventional stop position control device for a traverse pallet and providing a novel pallet traverse stop device that enables accurate stop position control with a simple mechanism. is there.

Another object of the present invention is to automatically correct an error from a stop position and to adjust to a desired position even when a wheel for moving a pallet slips or overruns due to a moving inertial force. Another object of the present invention is to provide a pallet stop position control device having a function of stopping the pallet.

(Means for Solving the Problem) The feature of the transverse multi-story parking apparatus according to the present invention, which is made to achieve the above object, is that a plurality of parking positions are arranged side by side on the parking apparatus. A transverse pallet provided so as to traverse between parking positions, a forward / reverse drive means for driving the transverse pallet in both transverse directions, and a traverse provided near each parking position for stopping the traversing transverse pallet. In a transverse type multi-level parking apparatus including a stop means, the transverse stop means is provided as a pair on the traverse pallet or a fixed portion of the parking apparatus in a pair so as to be closely spaced in the transverse direction. Switch actuation piece of
One switch means provided on the other of the traversing pallet or the parking device fixing portion and engaging with the first and second switch actuating pieces to generate an output signal; and a switch actuating piece of the switch means. Driving control of the pallet by the forward / reverse driving means is stopped by a signal detecting the first engagement of the pallet, and the pallet is driven in the reverse direction when the second engagement with the switch operating piece is detected. The stop position control means for stopping the traversing pallet in a state in which the switch means is located between the first and second switch actuating pieces arranged in close proximity to each other is provided.

Further, the present invention is also realized in the case where the above-mentioned switch actuating piece is one, and conversely, the switch means is configured as a first and a second pair which are spaced apart in the transverse direction.

Hereinafter, the present invention will be described in detail with reference to an example in which the traverse stop means is configured by using a pair of switch actuating pieces and one switch means.

The arrangement relationship between the switch actuating piece and the switch means in the present invention is basically based on the relative positional relationship between the pair of switch actuating pieces and one switch means, for example, the floating side (that is, the transverse pallet side). It suffices to stop the switch pallets while satisfying the relationship that the two switch actuation pieces sandwich one fixed switch means, and thereby the traverse pallet is stopped at a predetermined position given with reference to one fixed switch. . Then, depending on the degree of play of the switch means located between the two switch actuation pieces,
Since the stop position accuracy of the traversing pallet to be stopped is also determined, these installation position intervals and the like may be appropriately designed according to the required device requirements.

In the present invention, the stop position control means drives and controls the forward / reverse drive means according to a signal from the switch means, and
In order to stop the traversing pallet with the switch means positioned between the second switch actuating piece and the following control, for example, can be representatively exemplified. That is, when the traverse pallet is traversed from the adjacent parking position, the first operating piece fixed to the traverse pallet first engages the fixed switch means on the ground stage, and then the traverse pallet continues to the second. The operating piece of will engage the switch means. Therefore, by the output of the first switch means, first, the forward / reverse driving means (for example, a motor) of the traversing pallet is stopped and the brake mechanism is operated as necessary. As a result, the traverse of the traversing pallet may be stopped immediately, but when the pallet overtravels due to wheel slip or the like, the second switch actuating piece engages with the switch means and the second output is detected. Therefore, when there is this second output, the forward / reverse driving means is reversed for a predetermined time, for example, and the traverse pallet is moved back. This makes it possible to stop the traversing pallet within a predetermined range. Needless to say, when the first switch actuating piece is engaged with the switch means by this return movement, the traverse pallet may be moved again in the initial direction. In order to realize the above control based on the signal output by the switch means, electronic circuit technology using a microcomputer is generally applied,
For example, with respect to a forward / reverse rotation motor that drives a traversing pallet, a braking mechanism for traversing stop, etc., these mechanisms are operated (stopped or activated) based on the first signal input.
A sequence program that determines the timing and operating time, a sequence program that determines the reverse rotation of the forward / reverse rotation motor, the release of the brake mechanism, and the operation time of these when the second signal is input after the first signal is input. Etc., it is easily realized.

In the present invention, the switch means for generating a predetermined output signal in cooperation with the switch operating piece may be a non-contact type switch such as a photoelectric tube type, but the switch rod engages with the switch operating piece and tilts. By turning on the electrical contact
A contact type that switches on / off is practically preferable because the mechanism is simple and the cost is low. In particular, it is possible to tilt both sides depending on the direction of engagement with the switch actuating piece, and to use switches provided so that different electrical contacts are turned on / off separately according to the direction of this tilt Since it is possible to detect not only the contact between the one piece and the switch means but also the traverse direction of the traverse pallet, it is often preferable for proper forward / reverse rotation control of the forward / reverse rotation motor.

(Operation) According to the three-dimensional parking apparatus of the present invention, the traverse pallet in which the vehicle is parked is moved to an adjacent parking apparatus by driving wheels, for example, and the switch operating piece is placed at the adjacent parking position. It is possible to accurately stop at a position determined by the arrangement relationship of the switch means.

(Embodiment) The present invention will be described below based on an embodiment shown in the drawings.

FIG. 1 and FIG. 2 show an embodiment of a multi-level parking device according to the present invention. In FIG. 1, reference numeral 1 is a traversing pallet as a parking stand, which is not shown in the drawing. The upper pallet of the upper and lower two-tier parking devices, which are provided as the lower pallet of the upper and lower two-dimensional parking device and are arranged in parallel, rise between the upper tier position that is raised and the lower tier position that is lowered for loading and unloading vehicles. It is able to descend. On the other hand, the number of lower pallets provided is one less than the number of upper pallets, and the lower pallet is movable (traverse) to the adjacent parking device. By traversing these lower pallets, the space of the table can be appropriately moved to any of a plurality of parking devices arranged in parallel. The basic structure of such a traversing type three-dimensional parking device is the same as that conventionally known.

FIG. 1 is a view of the transverse pallet 1 viewed from a direction perpendicular to the transverse direction (the front direction of the parking device). In this figure, for convenience sake, the right side of the figure is the A side and the left side of the figure is the B side.
Side.

The traversing pallet 1 can be moved forward and backward in both directions A and B in the figure by a pulling wire (not shown) and a drive motor linked to the pulling wire. , 12 are assembled and the road 13
You can drive on the top.

Reference numerals 10 and 11 are a pair of switch operating pieces fixed to the lower surface of the traversing pallet 1.
Is called the B side switch operating piece. These switch actuation pieces
The switches 10, 11 turn on / off the switch contact by engaging the switch rod 23 of the switch means described below and tilting the switch rod 23.
It is switched off to determine the stop position of the pallet. In addition, it is preferable that the intervals between these switch actuating pieces be adjustable.

Reference numeral 20 is a switch means fixedly arranged at a predetermined position on the traveling path 13, and its concrete structure is shown in FIG.

As shown in detail in FIG. 2, this switch means in this example rotates a switch rod 23 arranged so as to project upward from an upper opening 21a in a box body 21 fixed to a traveling path. It is rotatably provided around the shaft 22 and is normally neutralized by a spring or the like (not shown) in the vertical posture shown by the solid line in FIG. The contact piece 24 provided as the lower end portion of the switch rod 23 can turn on / off the electrical contact described below by its tilting.

Numerals 25 and 27 are contact switches arranged in a pair facing each other with the contact piece 24 of the switch rod 23 interposed therebetween.
Contact points 26 and 28 are provided on the surfaces facing each other. When the switch rod 23 is tilted and the contact piece 24 is engaged, these contacts 26 and 28 detect the contact engagement and electrically output the output. Line 2
It is transmitted to a control circuit (not shown) through 9,30.

The stop position control device for the transverse pallet of the present example configured as described above causes the lower end portion of the switch rod 23 to move when the switch operating pieces 10 and 11 of the pallet 1 are tilted by engaging the switch rod 23. A contact piece 24 engages the contact 26 or 28, which outputs an output signal to detect the traverse position of the pallet. The configuration of this example is characterized in that the contact point that outputs the output signal varies depending on the tilting direction of the switch rod 23, so that the traverse direction of the pallet 1 can also be detected.

An example of the operation of the stop position control device for the traversing pallet having the above configuration will be briefly described.

The case where the transverse pallet 1 is transversely moved to the state shown in FIG. 1 from the position displaced to the B side in FIG. 1 will now be described. First, the switch operating piece 10 moves the switch operating rod 10 in accordance with the transverse movement of the pallet 1. Tilt 23 clockwise in the figure. As a result, the contact piece 24 engages with the contact 26 and turns on the contact 26, and the output signal is transmitted to the control circuit (not shown) via the lead wire 29.

In the control circuit, input of this signal causes palette 1
Will be detected and its moving direction will be detected.

In response to this signal input, in the control circuit, for example, a command to stop the operation of the pallet traverse drive motor is issued to the drive mechanism of the drive motor, and an operation command of the brake mechanism is issued, whereby the traverse pallet 1 traverses. Is stopped.

At the time of this traverse stop, the pallet 1 does not stop immediately due to a wheel slip or the like, and for example, the switch operating piece 11
When the switch rod 23 is engaged with the switch rod 23, the contact piece 24 engages with the contact point 26 to turn it on, and the second output signal is transmitted to the control circuit. The input of such a second output signal is recognized in the control circuit as indicating the overtravel of the pallet in the present example, and therefore, according to the predetermined sequence program, the traverse drive motor is driven. Reverse rotation, brake release, etc. are output as appropriate. As a result, pallet 1 is B
By returning to the side, the pallet is stopped due to the positional relationship in which the switch means is located between the switch operating pieces 10 and 11. It should be noted that it is practical to perform control such that the pallet is moved back for a short period of time, for example, by using a timer, or until the second output from the contact 26 disappears. Is preferred.

In addition, in the illustration of FIG.
Although the intervals of 10 and 11 are shown to be considerably wide, this is for convenience of description, and in practice, this interval is given by design in relation to the positional accuracy of stopping the pallet.

Needless to say, the present invention is not limited to the above-mentioned embodiments, and various modifications can be adopted without departing from the gist of the present invention.
For example, in the above-described embodiment, a further auxiliary switch actuating piece is provided outside the switch actuating pieces 10 and 11, and the fact that the switch rod tilts to turn on the contact is utilized. Then, it is also possible to determine the timing of decelerating the speed of pallet traverse.

(Effect of the Invention) As described above, according to the traverse type multi-level parking apparatus having the pallet stop position control device according to the present invention, the lower pallet can be stopped at an accurate position, and the lower pallet can be stopped. There is an effect that the vehicle can be put in and out surely, and further, a device for this can be manufactured easily and inexpensively, and it is easy to apply from a large device to a small device, There is also a practically excellent effect that the processing load is small.

[Brief description of drawings]

FIG. 1 is a diagram showing an example of a configuration outline of a stop position control device of a traverse pallet of a traverse type multi-level parking device according to the present invention, and FIG. 2 shows a concrete constitution of the switch means shown in FIG. It is a figure. 3 to 5 are views for explaining the outline of a conventional traverse pallet stop device. 1: Traversing pallet, 2: Servo motor 3: Pinion, 4: Rack 6: Feed screw rod, 7: Nut member 8: Differential pressure transformer, 9: Amplifier 10,11: Switch operating piece, 12: Wheel 13: Travel path , 20: Switch means 21: Box, 22: Rotating shaft 23: Switch rod, 24: Contact piece 25,27: Contact switch, 26,28: Contact 29,30: Lead wire

Claims (2)

[Scope of utility model registration request] 1. A transverse pallet provided on a parking device having a plurality of parking positions arranged side by side so as to be movable laterally between the parking positions arranged side by side, and a forward and reverse drive for driving the transverse pallet in both transverse directions. A traverse type multi-level parking apparatus comprising means and traverse stop means provided for each traverse pallet for stopping the traverse pallet, wherein the traverse stop means is a transverse pallet or a fixed portion of the parking device. The first and second switch actuating pieces, which are provided in a pair in close proximity to and separate from each other in the traverse direction, and the first and second switch actuating pieces, which are provided on the other of the traverse pallet or the parking device fixing portion, respectively. One switch means engaging with the second switch actuating piece to generate an output signal, and a signal for detecting the first engagement of the switch actuating piece of this switch means with the above-mentioned forward and reverse driving means. Let's stop the drive of the let,
Further, when the second engagement with the switch operating piece is detected, the pallet is driven in the opposite direction, so that the switch is interposed between the first and second switch operating pieces arranged in close proximity to each other. A transverse traverse parking system comprising: stop position control means for stopping the traverse pallet when the means is positioned. 2. A traverse pallet provided on a parking device having a plurality of parking positions arranged side by side so as to be capable of traversing between the parking positions arranged side by side, and a forward and reverse drive for driving the traverse pallet in both traverse directions. In a transverse multi-story parking apparatus including means and transverse stop means provided for each transverse pallet for stopping the transverse transverse pallet, the transverse stop means is any of a transverse pallet or a parking device fixing portion. One switch operating piece provided on one side,
First and second switch means which are provided in a pair on the other side of the traversing pallet or the parking device fixing portion so as to be closely spaced in the traversing direction, and each of which outputs an output signal by engagement with the switch operating piece; When the driving of the pallet by the forward / reverse driving means is stopped and controlled by the signal that the first engagement of the switch means with the switch operation piece is detected, and the second engagement with the switch operation piece is detected. By driving the pallet in the reverse direction, it comprises stop position control means for stopping the traversing pallet in a state where the switch actuating piece is located between the first and second switch means arranged in close proximity to each other. A transverse-type multi-level parking device characterized in that