JPH09319998A - Parking lot vacancy display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a driver himself or herself to easily recognize by visual observation whether these is a parking space at a distance by providing a vehicle detection part and a display part which enables to recognize that a parking lot is vacant if a vehicle is not present in the parking space. SOLUTION: When a vehicle is parked in a parking space, a tire of the parked vehicle steps on the plate of the vehicle detection part 1 of an installed vacancy display device, a container is compressed to decrease in internal capacity, and the air pressure in it rises and is transmitted to an indication pole 3 through a tube 2. Then a diaphragm of the indication pole 3 extends downward, and a movable inner cylinder 31 is drawn in an outer cylinder 32 which is painted in a plain color to indicate the parking space is occupied. When no vehicle is parked in the parking space, the movable inner cylinder 31 of the indication pole 3 projects from the outer cylinder 32, and a person who searches for a vacant space can recognizes that the parking space is vacant at a distance by leaning on a conspicuous color given to the projecting movable inner cylinder 31 of the index pole projecting above other vehicles.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for displaying an empty seat in a vehicle storage space in a parking lot, and more particularly to parking so that a driver can find an empty seat and store a vehicle while driving in the parking lot. The present invention relates to a device for displaying vacancy at a space position.

[0002]

[Prior Art] There are vast parking lots in department stores, supermarkets, event venues, highway service areas, etc. However, when the parking lot becomes crowded, the vehicles will be crowded and parked, and vacant seats will be far away. Since it is not possible to judge by, the driver has to get in between the parked trains, find an empty seat and park. When you look at it from a distance, it seems that the storage space between the parked vehicles seems to be empty, but when you go up close, you are disappointed because it is already occupied by the vehicle, or you are finally disappointed. However, I often feel uncomfortable because the vehicle that came later came to be parked first because I had misplaced it.

In high-rise parking lots, underground parking lots, etc., the parking space is often in a position where the line of sight is invisible due to pillars or walls. In such a place, the driver can drive the parked train while driving. It is difficult to glance at the sideways and determine whether or not there is an empty seat. Furthermore, if the vehicle has to be stopped on the aisle and wait until an empty seat is available, the function of the aisle may be paralyzed or the order of the first-come-first-served order may be disrupted, resulting in further confusion in the parking lot. In this way, if the driver cannot accurately grasp the vacant seats, it will take time to put the vehicle in the parking space or if there are many vehicles waiting in the aisle, the utilization efficiency of the entire parking lot will decrease,
The storage capacity cannot be fully utilized.

In order to eliminate such inconvenience and avoid congestion in the parking lot, various measures have been taken to control the entering vehicle by grasping the vacant seats in the entire parking lot. The number of vehicles entering the parking lot is detected, the total number of vehicles entering the parking lot is calculated, the number of vehicles leaving the exit is detected, and the total number of vehicles leaving the exit is calculated. Methods are used to prevent congestion in the venue by controlling the entry of vehicles. However, although the method of managing at the entrance of the parking lot can control the congestion as a whole to some extent, it does not help each vehicle to quickly find an empty seat and park smoothly, Will wander between the trains looking for empty seats.

Therefore, for example, a detection device using light or ultrasonic waves is installed in each parking space to detect the presence / absence of a vehicle, and vacancy information is concentrated on the management building to inform the driver of the vehicle of the vacant seat position. By doing so, a method to avoid confusion in the venue can be considered. However, although such a system is technically possible, it is expensive as a whole and is not practical to apply to a general parking lot. On the other hand, for example, Japanese Unexamined Patent Publication No. 2-102429 discloses a cheaper parking lot management device configured so that the vacant seat position of the entire parking lot can be grasped. This parking lot management device installs a load sensor that detects the load of the vehicle in each parking space, penetrates one optical fiber into these, injects light into this, and the load sensor receives a loss and backscatters. By measuring the reflected light, the position of the load sensor under load is calculated, and the parking space of empty seats is grasped by the management device. The manager can teach the entering driver the position of the vacant seat at that time.

However, even with this device, a detection end is provided for each parking space in the parking lot, and an optical fiber cable is stretched all over the parking lot. Moreover, one end of the optical fiber cable is illuminated on the management building to reflect light. Applicable parking lots will be limited due to the need to install sophisticated optical equipment for photometric and position evaluation, which will be an expensive and large-scale central management system. Further, it is not always easy for the driver to drive the vehicle to the actual empty seat space just by receiving the instruction at the entrance of the parking lot. Therefore, in order to improve the rotation of the parking lot and to improve the convenience of passengers, many parking lots are equipped with an instructor who guides the vehicle by looking for an empty seat instead of the driver, but the labor cost is high. Therefore, it is not preferable in business.

[0007]

Therefore, the problem to be solved by the present invention is to provide an empty seat in the parking space of a parking lot, and the driver driving the vehicle can visually recognize the car from a distance. It is an object of the present invention to provide a simpler vacant seat display device capable of easily knowing whether or not it is. In addition, as described above, the system provides a system that allows the driver to know whether there are vacant seats at the parking position, and also allows the manager to know the vacant seat status in the parking lot to control the vehicles entering and avoid congestion in the hall. It is to be able to do it.

[0008]

A vacant seat display device for a parking lot according to the present invention includes a detector for generating a signal based on the presence / absence of a vehicle and a display for externally recognizing that the vehicle is vacant. Is provided in the parking space, the display unit indicates that the vehicle exists in the parking space while the detection unit detects the vehicle, and indicates that the parking space is empty when the vehicle is not detected. It is characterized by As a result, the driver can know the parking position according to the indication of the vacant seat display device seen from a distance before actually going to the front of the parking space and can rush straight to the empty parking space. No more wandering around in the parking lot, eliminating congestion in the parking lot.

A vacant seat display device for a parking lot according to the present invention includes a container filled with a fluid, a pressure sensitive mechanism for compressing the internal volume of the container by the load of the vehicle, a display body driven by the fluid, and a display body. Equipped with piping to connect the containers to allow the fluid to flow, when the vehicle applies a load to the pressure-sensitive mechanism, the fluid overflowing from the container drives the display to change the display state and display the presence or absence of the vehicle in the parking space. It may be

If the vacant seat display device of the present invention is installed in the parking space, when the vehicle is parked and its wheels step on the pressure sensitive mechanism portion, a part of the load of the vehicle is applied to the pressure sensitive mechanism portion. The fluid container is compressed, the fluid inside the container reaches the display body through the pipe, and the display on the display body is changed from the empty seat state to the full seat state. The fluid container is made of a flexible material such as rubber, or has a diaphragm structure or a combination of a cylinder and a piston to change the internal volume. When the vehicle exits, the load applied to the pressure-sensitive mechanism is released, so that the fluid returns to the inside of the container and the display on the display returns to the vacant state. Therefore, for example, if the display body is provided at an appropriate position that can be seen from a distance, such as a position higher than the vehicle, the aisle side of the vehicle or under the ceiling in front of the parking space, the driver can easily drive the vehicle from a distance while driving the vehicle. It is possible to know whether the parking space is empty.

It should be noted that, even if a display device is not provided in the vicinity of the main passage in the parking lot, it can be immediately known whether or not there is an empty seat, and the necessity of the device is particularly high. Is a position where the availability is not immediately known. Therefore, it goes without saying that it is not necessary to provide the vacant seat display device in all the parking spaces. For the convenience of the driver, it is preferable that the display body be conspicuous in the vacant seat display state by devising colors, shapes, sizes, positions, display characters, and the like. The pressure-sensitive mechanism is installed at a position where one or a plurality of wheels come into contact with each other when the vehicle is parked to exert at least a part of the load of the vehicle body. When arranging on the floor, it is necessary to select a position that will surely receive the load. It is also possible to use it by incorporating it into a car stop or to also serve as a car stop.

The fluid used to drive the display body by filling the container is appropriately selected from liquids such as machine oil, silicon oil, water and ethylene glycol, and gases such as air according to the structures of the container and the display body. You can choose the right one. If the indicator is installed at a high position and the specific gravity of the fluid is large enough, the fluid will naturally return to its original container when the vehicle load is released. However, in order to make it easier for the fluid to return to the inside of the container, even if the container is made of a material having a restoring force and the internal volume of the container is recovered or the internal volume is expanded when the external force is released, a mechanism may be provided. Good. In addition, the pressure-sensitive mechanism is provided with a repulsive force like a spring to fix the pressure-sensitive mechanism and the container, and when the vehicle goes out, the two work together to restore the internal volume and suck the fluid. You may return to.

Further, if the fluid container is constituted by a rubber tube, a rubber bag or the like and the load of the vehicle is directly applied,
The function of the pressure sensitive mechanism and the function of the container may be combined. In addition, for example, the drive unit of the display body is composed of a piston and a cylinder so that the fluid is repulsed by the weight of the piston when the load of the vehicle is released, or the volume becomes small when the internal pressure decreases like a balloon. By using such a mechanism, the display body can be configured to push back the fluid and return to the original state when the vacant state is displayed. If the display is installed on the aisle side of the parking space and the pipe connecting the display and the container is attached along the boundary line between the adjacent parking space, use this pipe itself as the partition line of the parking space. You can also

The vacant seat display device of the present invention also includes a detection unit that causes a displacement due to the load of the vehicle, a displacement transmission unit that transmits the displacement, and a display unit that is driven by the transmitted displacement.
When the vehicle applies a load to the detection unit, the display may be driven via the displacement transmission unit to change the display state and display the presence or absence of the vehicle in the parking space.

According to this vacant seat display device, when displacement occurs in the detecting portion due to the load of the parked vehicle, the displacement transmitting portion composed of mechanical elements intervenes to transmit the displacement to the display body,
The display on the display body is changed from a vacant seat state to a full seat state. When the vehicle leaves the warehouse, the displacement formed by the load disappears, and the display on the display body returns to the vacant state. Therefore, if the display body is provided at an appropriate position where the driver can see the vehicle from a distance, the driver can park the vehicle quickly while knowing whether the parking space is empty or not while driving the vehicle.

As described above, a great advantage of the present invention is that the vacant seat display, which is easily recognized from a distance, is provided at the parking space position. For this reason, the driver of the vehicle entering the parking lot can quickly find each vacant seat without being guided by another person, and can park the vehicle in the vacant seat space closest to him or her quickly without wasteful traveling. Therefore,
In the parking lot, there will be no vehicles wandering around looking for vacant seats or waiting in the aisle, improving the efficiency of use of the entire parking lot and making full use of storage capacity.

The vacant seat display device of the present invention may further include a mechanism for transmitting information about the presence or absence of the vehicle in the parking space to a remote place. According to the vacant seat display device equipped with such a transmission mechanism, not only the driver can rely on the display of each display device to park quickly but also the vacancy information of each parking space can be displayed by each display device. It is possible to collect and generate usage information for the entire parking lot and display this information at the place where the parking lot manager is to teach the vacancy and the vacant position in the parking lot. It is possible to prevent congestion of the parking lot and further improve the usage efficiency by instructing the driver of a parking position.

Further, the parking lot of the present invention is characterized by including one or more parking spaces, and at least one parking space equipped with the above-mentioned vacant seat display device. In the parking lot equipped with the above-mentioned vacant seat display device, the driver himself / herself quickly finds an appropriate vacant seat and parks it, so there is no need to newly arrange a clerk or a guide in the parking lot, and it is low cost and extremely efficient. You can do good management. Further, a plurality of vacant seat display devices having the above-mentioned transmission mechanism and a parking lot management device are provided, each vacant seat display device displays the presence or absence of a vehicle, and the presence / absence information of the vehicle generated in each vacant seat display device is displayed in the parking lot management device. And the vacant seat information may be generated there.

In such a parking lot, since the vacancy information of the parking space can be obtained from the vacant seat display device in real time, the parking lot manager can grasp the actual vacancy in the parking lot, and therefore the entry of the vehicle can be confirmed. Proper regulation can surely avoid congestion in the parking lot. In addition, because it is possible to teach the driver to enter the vacant seat position at the entrance,
Not only does it give the driver a sense of security, but it also reduces the congestion in the parking lot by preventing unnecessary driving of the vehicle.
Further, even in an individual parking lot where there is only one parking space, the parking lot vacant seat display device of the present invention is installed to be used as a means of knowing that the customer has parked or another person uses the parking lot without permission. It can also be used to monitor

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION The vacant seat display device of a parking lot according to the present invention will be described in detail below with reference to the drawings.

[0021]

[Embodiment 1] FIG. 1 is a conceptual view showing a first embodiment of a vacant seat display device of a parking lot according to the present invention, and FIG. 2 is a sectional view showing a configuration of a vehicle detection unit used in the vacant seat display device. 3 is a partial sectional view of the marker pole. The vacant seat display device according to the present embodiment includes a vehicle detection unit 1 that detects the presence or absence of a vehicle, and a marker pole 3 that is connected by a tube 2 and that displays an vacant seat in conjunction with the movement of the vehicle detection unit 1. The vacant seat display device is provided at the position of the parking space so that the noticeable tip of the sign pole 3 projects when the seat is vacant so that the vacant seat can be seen from a distance even when the vehicle itself cannot be seen. Then, when the plate of the vehicle detection unit 1 is stepped on, the tip of the marker pole 3 sinks and fits in the sheath so that it can be visually recognized that the vehicle is blocked.

The vehicle detection unit 1 includes a plate 11, a fluid container 13, a spring 15, an outer casing 17 serving as a car stop, and a floor plate 19, and is fixed to the floor by the floor plate 19. Plate 11
The shaft 12 and the spring 15 are interposed between the floor plate 19 and the floor plate 19, and the plate 11 sinks when a load is applied to the plate 11 and bounces back upward when the load is removed. The fluid container 13 has a bellows structure, the lower surface of which is fixed to the floorboard 19 and the upper surface of which is pivotally supported by the tip of the plate 11. The fluid container 13 receives the pressure exerted through the plate 11 to reduce the volume and force. When it is no longer applied, the volume is restored by the repulsive force of the spring 15. When no force is applied to the plate 11, the force of the spring 15 lifts the end of the plate 11. The inside of the fluid container 13 is filled with air.

The inside of the fluid container 13 communicates with the inner space of the marker pole 3 through the circulation hole 14 and the tube 2, and air is circulated according to the change in the internal volume of the fluid container 13. The outer casing 17 projects above the plate 11 and serves as a car stop. In addition,
The moving range of the plate 11 is limited to the opening of the outer casing 17, so that even if the plate 11 is stepped on, the fluid container 13 is not crushed and broken. A limit switch 18 is provided in the outer casing 17 and can detect that the plate 11 is stepped on. This limit switch 18 is used when transmitting the vacancy information of the parking space to a remote place.

The marker pole 3 includes a movable inner cylinder 31 and an outer cylinder 32.
And is fixed to the floor by the base 33. The movable inner cylinder 31 fits into the outer cylinder 32 and slides, and the side surfaces thereof are painted in a prominent color such as red or fluorescent color. A diaphragm 35 is installed inside the outer cylinder 32. The diaphragm 35 is attached to a fixed ring provided inside the outer cylinder 32 in a posture of expanding and contracting inward. When air is supplied to the diaphragm 35 from the pipe 38, the diaphragm 35 extends downward as shown by a dotted line in the figure, and when air is sucked, it contracts upward as shown by a solid line in the figure. Although illustration is omitted for simplification, a spring that assists the diaphragm 35 to shrink and return to its original position when air is sucked is incorporated between the tip of the diaphragm 35 and the stopper in the outer cylinder 32. . The same effect can be obtained by disposing the spring between the bottom surface of the movable inner cylinder 31 and the stopper.

The tip board 37 of the diaphragm 35 and the movable inner cylinder 31 are connected by a connecting rod 36, and the diaphragm 35
When is contracted, the movable inner cylinder 31 projects from the outer cylinder 32, and when the diaphragm 35 extends, the movable inner cylinder 31 is housed in the outer cylinder 32. A flange 34 is provided at the inner end of the movable inner cylinder 31, and a stopper provided on the outer cylinder 32 regulates the projecting position represented by the solid line and the storage position represented by the dotted line in the figure. Since the tip of the outer cylinder 32 projects higher than the roof of the vehicle, is the movable inner cylinder 31 protruding from the outer cylinder 32?
Whether it is within 2 can be easily distinguished from a distance. The pipe 38 is connected to the tube 2 connected to the vehicle detection unit 1, and is connected to the diaphragm 35 and the fluid container 13.
The air that overflows the fluid container 13 is supplied to the diaphragm 35.

The vacant seat display device of this embodiment is installed for each parking space in the parking lot. The plate portion 1 is provided at a position where the tire of the parked vehicle hits, and can also be used as a car stop. The sign pole 3 is arranged so that it can be seen from a distance even when the vehicle is parked in the parking space. It should be noted that the vacant seat display device does not have to be installed in all parking spaces, and may be installed in a position where it is difficult to see the parked vehicle due to the arrangement of the parking space or where it is difficult to determine whether the seats are empty when the parking lot is crowded. Not to mention good things.

When the vehicle is not parked in the parking space in which the vacant seat display device is installed, the movable inner cylinder 31 of the sign pole 3 projects from the outer cylinder 32, and a person looking for a vacant seat has a vehicle height of another vehicle. It is possible to know that the parking space is vacant from a distance by relying on the conspicuous color attached to the protruding movable inner cylinder 31 of the more protruding marker pole 3. When the vehicle is parked in the parking space, the tire of the vehicle that parks the plate 11 of the vacant seat display installed is stepped on, the container 13 is compressed, the internal volume is reduced, the air pressure inside rises, and the marker pole passes through the tube 2. 3 is transmitted. Then, the diaphragm 35 of the marker pole 3 extends downward and the movable inner cylinder 31 is drawn into the outer cylinder 32 with a plain color, indicating that the parking space is closed. When the vehicle exits and the tires on the plate 11 disappear, the plate 15 is lifted by the spring 15 of the container 13 and the volume of the container 13 is restored to its original value, so that the air pressure is reduced and the diaphragm 35 of the marker pole 3 is reduced. It contracts and the movable inner cylinder 31 is again exposed from the tip of the outer cylinder 32 to display an empty seat.

In this way, the driver trying to park is
By displaying the sign pole 3 protruding from the height of the vehicle, it is possible to easily recognize where the vacant seat space is, so that careless entry is avoided. The vacant seat display device of this embodiment is
Since it is structurally simple and does not require the use of electric power, there is almost no running cost. In addition, if the sign portion is further combined with an electric light such as an electric light or a light emitting diode to emit light, the electric power is used, but the electric power can be more easily identified even in a dark garage. In the present embodiment, compressible air is used as the fluid for driving the display of the marking pole 3, but liquid such as oil or water can be used. When a liquid is used, since it is incompressible, it is necessary to precisely design the volume of the fluid container 13 of the vehicle detection unit 1 and the diaphragm 35 in the sign pole 3, but the operation is reliable. Further, the base 33 is provided to erect the marker pole 3, but it goes without saying that it may be directly embedded in the floor.

[0029]

[Embodiment 2] FIG. 4 is a cross-sectional view showing the structure of a vehicle detector used in a second embodiment of the vacant seat display device for a parking lot according to the present invention. In these drawings, elements having the same functions as those in FIGS. 1 and 2 are given the same reference numerals to simplify the description.
The vacant seat display device of the present embodiment is installed so as to be embedded in a groove provided on the floor and is connected by a tube 2 to a plate portion 1 for detecting the presence / absence of a vehicle. It is composed of a cylinder sliding type indicator portion 4.

The plate portion 1 comprises a plate 11 and a fluid container 13. The plate 11 is laid in a groove provided on the floor surface, rotates about a shaft 12 provided on one end side, and the downward rotation can be stopped on the floor surface. The volume of the fluid container 13 is reduced by receiving the pressure exerted via the plate 11, and when the force is no longer applied, the volume is restored by the repulsive force of the spring 15. When no force is applied to the plate 11, the force of the spring 15 lifts the end of the plate 11. The fluid container 13 is filled with a liquid such as oil or water. The inside of the fluid container 13 is communicated with the inner space of the marker 4 by the tube 2, and the liquid flows along with the change in the internal volume of the fluid container 13.

The sign portion 4 includes a pole 41 and a movable outer cylinder 43, and is fixed to the floor by a base 45. Paul 4
1 is higher than the roof of the vehicle, and the side surface of the projecting end portion of the pole 41 is painted in a prominent color such as red or fluorescent color. The movable outer cylinder 43 is fitted to the pole 41 and slides in conjunction with the movement of the plate 1 so that the projecting end portion of the pole 41 can be covered. In this embodiment, when the liquid is supplied through the groove 42 formed in the side portion of the pole 41, the space formed between the movable outer cylinder 43 and the pole 41 expands, and the movable outer cylinder 43 is lifted upward accordingly. When the liquid is discharged, the movable outer cylinder 4 is reached.
As the space inside 3 becomes smaller, the movable outer cylinder 43 descends downward so that the projecting end of the pole 41 appears.
The surface of the movable outer cylinder 43 is painted in an inconspicuous color to make a large comparison with the case where the pole 41 is exposed to facilitate the determination.

The plate portion 1 of the vacant seat display device of the present embodiment is provided at a position where any tire of the parked vehicle hits, and does not necessarily have to be at the rear tire position. When the vehicle is not parked in the parking space in which the vacant seat display device is installed, the movable outer cylinder 43 of the sign portion 4 descends downward so that the projecting end of the pole 41 is exposed. It is possible to know that the parking space is empty from a distance by relying on the conspicuous color attached to the tip end protruding from the vehicle height of other vehicles. When the vehicle is parked in the parking space, when the tire of the vehicle that parks the plate 11 of the vacant seat display device installed steps on, the container 13 is compressed and the internal volume is reduced, and the liquid inside passes through the tube 2 and is labeled. It is sent to Part 4. Then, the movable outer cylinder 43 of the sign portion 4 rises to cover the surface of the pole 41, and indicates that the parking space is closed.

When the vehicle leaves the vehicle and the tires on the plate 11 are lost, the plate 15 is lifted by the spring 15 of the container 13 and the volume of the container 13 is restored. Therefore, the fluid flows backward from the sign portion 4. The movable outer cylinder 43 descends, the projecting end of the pole 41 is exposed again, and an empty seat is displayed. In addition, although the liquid is used as the fluid for driving the marker portion 4 in this embodiment, a gas such as air may be used. When gas is used, since it is compressible, use of a large fluid container 13 has an advantage that it is not necessary to precisely design the volume of the space inside the movable outer cylinder 43.

FIG. 5 is a partial cross-sectional view showing another mode of the detecting portion of the vacant seat display device of this embodiment. In FIG. 5, elements having the same functions as those in FIG. 4 are given the same reference numerals to simplify the description. In this embodiment, instead of attaching the shaft 12 to the end of the plate 11, the shaft 12 is placed slightly inside, and the plate 11 is attached to the shaft 1.
A fluid container 13 having a bellows structure is stopped on one side so as to oscillate like a seesaw with the two being sandwiched.

As shown by the solid line in the figure, when the vehicle is parked, the detecting portion of the above structure is such that the plate 11 is stepped on by the tire and pushed horizontally to compress the fluid container 13 and the fluid inside is discharged. Then, a sign pole (not shown) is driven to display that the vehicle occupies the parking space. On the other hand, when the vehicle leaves the vehicle, the tires step on the edge of the plate and exit, so that the plate 11 returns to its original state in which the other end jumped up, and the force causes the fluid container 1 to move.
Since 3 is stretched to expand the internal volume, the fluid flows back from the sign pole into the original container 13, and the sign pole changes to an empty seat display. With the above structure, the structure of the container 13 is simplified, and the vacant seat display device can be manufactured economically as a whole.

The structure of the detecting portion is not limited to the above, and for example, a flexible rubber tube or a water pillow-like bag is protected by an appropriate protective member and placed directly on the floor at a position where the tire hits. , A simple structure in which these are laid under the plate can also be used. Such a simple structure has an advantage that it can be constructed at an extremely low cost even if there is a problem in life or maintainability.

FIG. 6 is a partial cross-sectional view showing another mode of the sign pole of the vacant seat display device of the present invention. Also in FIG. 6, elements having the same functions as those in FIG. 4 are denoted by the same reference numerals for simplification. The indicator portion 4 of the other aspect uses a fluid pressure cylinder 47 which is widely commercially available, instead of forming the fluid pressure drive mechanism inside the movable outer cylinder 43. The fluid pressure cylinder 47 has a body portion fixed to an outer cylinder 46 fixed to a base 45, and a piston rod portion 48.
Is fixed to the collar 44 provided on the movable outer cylinder 43. The driving fluid for the fluid pressure cylinder 47 is supplied from the fluid container of the detection unit (not shown) via the tube 2. According to such a configuration,
Since the complicated processing portion of the sign portion 4 is reduced, the sign portion 4 can be manufactured at a low cost even in the case of a relatively small amount of production.

[0038]

[Embodiment 3] FIG. 7 is a partial sectional view showing another embodiment of the vacant seat display device of the present invention. The vacant seat display device detects a vacant seat in the parking space and locally displays the vacant seat by transmitting a mechanical displacement to the display unit via a mechanical mechanism instead of using fluid. In the figure, the thick line shows the vacant seat state, and the thin line shows the occupied state. The plate 51 is installed at a position where the tire of the car can be housed. One end of a wire 52 is tied to the plate 51. Wire 52
Is guided to the display board 54 by several pulleys 53. The display plate 54 is configured to rotate about a rotation shaft 55, and the other end of the wire 52 is connected to the middle of the display plate 54 and the rotation shaft 55.

When there is no vehicle in the parking space,
The display board 54 hangs by its own weight so that it can be seen well from a distance. At this time, the plate 51 is the display plate 5
It is pulled up by the wire 52 connected to the No. 4 and lifted up. On the other hand, when the vehicle is stored in the parking space and the tire is stepping on the plate 51, the plate 5
Since the wire 52 connected to 1 is pulled, the display plate 54 is housed in the housing groove 56 so that it cannot be seen from the outside. As described above, whether the parking space is vacant or occupied by the vehicle can be easily determined by looking at the state of the display plate 54 even when the parked vehicle cannot be seen.

Although the displacement is transmitted by the wire 52 using the pulley 53 in the above, if the wire 52 has a structure used for a brake wire of a bicycle, it is not necessary to use the pulley 53. Absent. Further, the displacement may be transmitted by a link mechanism combining various rigid links instead of the wire. In the case of using the link mechanism, the displacement amount generated in the plate 51 can be enlarged and transmitted to the display plate 54 by appropriately selecting the combination of the links. In addition, the presence or absence of the vehicle and the display board 54
The relationship between the postures of the display plate 54 is the position of the shaft 55 of the display plate 54 and the storage groove 5
6 or the shape of the plate 51 and the wire 5 that determine the relationship between the position of the plate 51 or the movement of the plate 51 and the push / pull of the wire 52.
It can be arbitrarily determined according to the position of the connection point with 2, etc. Therefore, for example, when the vehicle is present, the display board 54
It is also possible to hide the display plate 54 when "" appears and the seat is vacant.

[0041]

[Embodiment 4] FIG. 8 is a partial cross-sectional view showing another embodiment of the marking method for an empty seat display device of the present invention. In the marker mechanism of the present embodiment, the display unit is configured by a double cylinder, and the empty space of the parking space is instructed by allowing the fluid from the fluid container (not shown) to enter and leave the space. That is, a middle cylinder 61 is provided in the center and an outer cylinder 62 is provided on the outer side, and liquid is supplied between the two cylinders from the fluid container via the tube 63. The liquid may be colored to recognize when the liquid level rises, or the middle cylinder 61 may be colored to allow the opaque liquid to come in and out. The surface of the cylinder is preferably surface-treated with a fluororesin or the like in order to improve liquid drainage.

[0042]

[Example of Use] FIG. 9 is a perspective view showing an example of use of the vacant seat display device of the present invention. The fact that the vacant seat display device of the present invention has a great effect when used in a large parking lot has been described in detail in the above description of the embodiments, but as shown in FIG. 9, the parking space is partitioned into walls. It is also very effective when used in parking lots that are difficult to see due to being blocked. In such a parking lot, when searching for a vacant seat on a side road from a vehicle 71 running on a main passage, it is difficult to directly visually recognize the parked vehicle in the space on the front side of the side passage, and the vacant seat is often overlooked. However, if the vacant seat display device of the present invention is installed, the driver can, for example, use the display unit 72 provided on the ceiling.
There is no need to stop and check carefully because you can immediately see if there is a vacant seat by simply glancing at.

When the vacant seat display device of the present invention is used, a marker pole is installed on the aisle side and a pipe for storing a tube or wire connected to the pressure sensitive plate is laid along the boundary of the parking space. The tube or the like may be used instead of the white line of the parking section. In this way, it is not necessary to draw a dividing line, and regular painting is also unnecessary. Further, various types of drive mechanisms for the display unit can be applied. For example, a large bellows air pump may be built under the pressure sensitive plate, and the pump and the bellows provided at the tip of the display unit may be connected through a tube. In this mechanism, the bellows at the tip of the display section is a C-shape with one end sealed, and when the tire is stepped on the pressure-sensitive plate and the air pressure pressurized by the air pump is applied, the tip of the C-shape extends and slides. The presence or absence of a car is indicated by pushing up the outer cylinder and covering the inner cylinder. In addition to the above-mentioned methods, the display method may be such that the outer cylinder rises when the seat is vacant, the inner cylinder lowers, the disk or fan plate swings,
Various things can be adopted according to the situation of the parking lot.

In addition to displaying the vacant seat status in the parking space, the parking lot vacant seat display device of the present invention uses an electric switch provided in each vacant seat display device to change the status in accordance with the vacant seat status, thereby making a signal. Can be transmitted to the management office. The vacant seat state in the parking space provided with the vacant seat display device can be easily detected by attaching a limit switch to the detection unit and the display unit and detecting the displacement of these members. In this way, the mechanism already provided in the vacant seat display device of the present invention can be effectively used to economically enable centralized management of a parking lot. By understanding the availability of seats in each parking space at the management office,
Controlling the number of vehicles that can be parked at the entrance so that only the number of vehicles that can be parked will allow the driver to enter the vehicle in a vacant space in combination with the ability to store the vehicle in an empty space smoothly. No congestion.

It should be noted that the switch of the vacant seat display device is connected in series for each block of the parking lot or for each floor to transmit the comprehensive vacant seat information to the management office, and only whether or not there is a vacant seat for each block or floor. Even if is displayed, it may be adequately suitable for the management purpose. In the case of such a configuration, the wiring facility and the information analysis device are simplified and economical compared with the case where signals are transmitted independently from all vacant seat display devices.

[0046]

As described above in detail, if the parking lot vacant seat display device of the present invention is installed and used in a parking space, a driver who enters the parking lot can easily find a vacant seat space from a distance. You can park your car smoothly, so you don't have to wander around looking for vacant seats in a crowded parking lot, and you can avoid using a car waiting for seats to block the aisle and make it more crowded. Efficiency is improved.

[Brief description of drawings]

FIG. 1 is a conceptual diagram showing a first embodiment of a vacant seat display device for a parking lot according to the present invention.

FIG. 2 is a cross-sectional view showing a configuration of a vehicle detection unit used in the vacant seat display device according to the first embodiment.

FIG. 3 is a partial cross-sectional view of a marker pole used in the vacant seat display device according to the first embodiment.

FIG. 4 is a partial cross-sectional view showing the configuration of a second embodiment of the vacant seat display device of the present invention.

FIG. 5 is a partial cross-sectional view showing another aspect of the detection unit used in the vacant seat display device of the second embodiment.

FIG. 6 is a partial cross-sectional view showing another mode of the marker pole used in the vacant seat display device according to the second embodiment.

FIG. 7 is a partial cross-sectional view showing another aspect of the configuration of the third embodiment of the vacant seat display device of the present invention.

FIG. 8 is a partial cross-sectional view showing another embodiment of the marking method used for the vacant seat display device of the present invention.

FIG. 9 is a perspective view showing an example of use of the vacant seat display device of the present invention.

[Explanation of symbols]

 1 Vehicle Detection Part Plate Part 11 Plate 12 Shaft 13 Fluid Container 14 Circulation Hole 15 Spring 17 Outer Casing 18 Limit Switch 19 Floor Plate 2 Tube 3 Marking Pole 31 Movable Inner Cylinder 32 Outer Cylinder 33 Base 34 Collar 35 Diaphragm 36 Connecting Rod 37 Tip Panel 38 Piping 4 Marking part 41 Pole 42 Groove 43 Movable outer cylinder 45 Base 51 Plate 52 Wire 53 Pulley 54 Display plate 55 Rotating shaft 56 Storage groove 61 Middle cylinder 62 Outer cylinder 63 Tube 71 Vehicle 72 Display

Claims (6)

[Claims] 1. A parking space is provided with a detection unit that generates a signal based on the presence or absence of a vehicle and a display unit that can recognize an empty seat from the outside when there is no vehicle, and the detection unit detects the vehicle in the parking space. An empty seat display device for a parking lot, in which the display unit displays that a vehicle is present in the parking space, and when the vehicle is not detected, the empty parking space is displayed in the parking space. 2. A container filled with a fluid, a pressure-sensitive mechanism for compressing the internal volume of the container by the load of a vehicle, a display body driven by the fluid, and the display body and the container connected to each other. A vacant seat display device provided with a pipe for circulating a fluid, wherein when a vehicle applies a load to the pressure-sensitive mechanism, the fluid overflowing from the container drives a display body to change a display state and a vehicle in a parking space. Vacant seat display device for displaying the presence or absence of a car. 3. A detection unit that causes a displacement due to the load of the vehicle, a displacement transmission unit that transmits the displacement, and a display unit that is driven by the transmitted displacement, and when the vehicle applies a load to the detection unit. A vacant seat display device for a parking lot, which displays the presence / absence of a vehicle in a parking space by driving the display body via the displacement transmission unit to change the display state. 4. The vacant seat display device according to any one of claims 1 to 3, further comprising a mechanism for transmitting information on the presence / absence of a vehicle in a parking space to a remote place. 5. Providing at least one parking space,
A parking lot equipped with the vacant seat display device according to any one of claims 1 to 4 in one or more parking spaces. 6. A plurality of vacant seat display devices according to claim 4 and a parking lot management device are provided, wherein each vacant seat display device displays the presence / absence of a vehicle, and the presence / absence information of the vehicle generated by each vacant seat display device is stored in the parking lot management device. A parking lot that is transmitted to the garage management device to generate vacant seat information there.