JPS642755B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a two-tier multi-level parking system, and more particularly to a fall prevention mechanism for an upper parking platform of the two-tier multi-level parking system.

This kind of conventionally known two-stage multilevel parking system has a lifting drive mechanism such as a hydraulic cylinder device for raising and lowering the upper parking garage, and a column-structured elevator guide mechanism located at the center of the upper parking deck in the longitudinal direction. They are usually arranged in pairs on the left and right near the area. This is because, considering that a vehicle is parked on the upper parking platform and a load is loaded on it, it is desirable to provide a structure that supports the load near the center of gravity of the upper parking platform.

However, with such a configuration, the following difficulties are pointed out when using the device. Firstly, when a vehicle enters the upper parking platform, the upper parking platform is lowered to the ground surface. The pillar structure type structure that has been lowered is now in a state where it protrudes above the lowered upper parking platform. For this reason, if we consider the entry and exit of a vehicle as, for example, reversing and entering onto the upper parking platform,
There is a problem in that considerable care must be taken to prevent the rear part of the vehicle from coming into contact with the structure. In other words, if an incoming vehicle comes into contact with a portion of the pillar structure, both will be damaged.
This is because repairing both the mechanism and the vehicle becomes a heavy burden. A second problem is that when a vehicle is moved into or out of the lower parking platform while the upper parking platform is raised to a desired position above and remains stationary, the pillar structure may interfere with the driver getting on or off the parked vehicle. There is a problem with becoming. In other words, the structure is usually located at a position where it interferes with opening and closing of the front seat door of the vehicle.

Therefore, in order to eliminate such problems, the present applicant has developed a two-stage multilevel parking system with the following new configuration, and has already published Japanese Patent Application No. 56-60925 (Japanese Unexamined Patent Publication No. 57-174562). (see official bulletin). In other words, the gist of the invention according to the three applications is basically that a drive mechanism for raising and lowering the upper parking platform is disposed at the rearmost part of the parking device, and that the raising and lowering guide mechanism for the upper parking platform is moved by two intersecting legs. It is characterized in that it is provided in a scissor shape that opens and closes with the center of the intersection as an axis, and is disposed in the rear half of the device. As a result, when the upper parking platform is lowered, the scissor-type elevating guide mechanism is folded and its two legs are parallel to the ground surface, thus preventing vehicles from entering and exiting the upper parking platform (without contacting each other). It is ensured that there are no upwardly protruding objects (which require special care). Also, when the upper parking lot rises upwards to a predetermined position,
The vehicle can be parked in the lower parking lot, but in this case, the Caesars-type lift guide mechanism is X-shaped when viewed from the side, and since it is located in the rear half of the device, it is difficult to park the vehicle at the front seat door. It has the advantage of being much easier to open and close and for the driver to get on and off compared to the conventional example.

In addition, we have further improved the scissor-type lifting guide mechanism, so that the upper parking platform does not always move up and down in a horizontal position, but has a slight oscillation that causes the front side to rise forward as it rises. It is also preferable to cause it to occur on the upper parking platform. In this way, when the upper parking platform rises from a lowered state, the rising height on the rear side necessary to satisfy the required height of the upper parking platform on the front side is the same as that of the front upward movement. On the one hand, this has the effect of reducing the required lift of the hydraulic cylinder device, and on the other hand, this multilevel parking device can be installed in places where volume, especially height, is restricted. This has the effect of

By the way, in such a two-tier multilevel parking system, there is a problem in which the upper parking platform may fall, which must be particularly taken into consideration as a safety measure in the event that a failure occurs in the system. For example, with a hydraulic cylinder device that is commonly used as a drive mechanism, the supporting force of the upper parking platform may be lost due to oil leakage or a ruptured piping line, and even in the case of a mechanical type, it may be due to a break in the wire, etc. This is because it is conceivable that the same problem may occur.

In view of the above, the present invention provides a two-tier multi-level parking system in which the fall of the upper parking platform is effectively prevented by assembling a locking device to the scissor-type lifting guide mechanism. A specific gist of the present invention is a lower fixing structure including a pair of parallel lower frame bodies fixed on a base and arranged along the left and right sides of a parked vehicle, and an upper position of the lower fixing structure. an upper parking lot including a pair of left and right parallel upper frame bodies arranged parallel to the lower frame body; 2 to connect
A pair of left and right scissor-type elevating guide mechanisms with intervening legs that guide the elevating movement of the upper parking platform by opening and closing the two legs around the intersection point, and the upper frame body and the lower A lifting drive device is arranged to connect these at the rearmost position in the longitudinal direction of the frame body and drives the upper parking platform up and down, and a mechanical mechanism is connected between one leg of the scissor type lifting guide mechanism and the lower frame body. The scissor-type lifting guide mechanism includes a fall prevention device for the upper parking platform that is provided so as to be able to engage with the upper parking platform, and the scissor type lifting guide mechanism has a front side pivot connection point between the upper and lower ends of the two legs and the upper and lower frames. The drop prevention device is provided so as to move in the front and back direction with respect to the rear pivot connection point to allow the opening and closing movement of the two legs, and the fall prevention device is provided on the lower end side of the lower frame body or the legs that move with respect to the lower frame body. The leg movement locking means includes a movable foot lever assembled to either one of the lower frames or the legs, and a shaft that is fixed to the other of the lower frame body or the leg and hooks and engages with the foot lever. Located in a multi-level parking system.

The present invention will be explained in detail below based on the drawings.

Figures 1 and 2 show the configuration of a two-stage multilevel parking system to which the locking device of the present invention is applied. It is a frame body, and is fixed and extends for a certain length from the rear end to the front side along the left and right sides of the vehicle parking position. This lower fixing structure includes a necessary connecting member (not shown) that integrates the left and right lower frames 2 and a fixing device such as a stud bolt (not shown) that fixes the lower frame 2 to the base 1. and a pallet for a lower parking platform to be installed as necessary.Furthermore, on the front end side of the left and right lower frame bodies 2, there is a pivot that rotatably supports the lower end of one leg of a scissor-type guide mechanism to be described later. A guide portion 3 is provided that supports the attachment point movably in the front and rear directions.

The parking device lower fixing mechanism is provided in the form of a rectangular or rectangular frame fixed on the base 1 with a small thickness by a pair of left and right lower frames 2 and a connecting member between them. 4 is a pair of opening/closing legs 5, 9
The lower end of one of the legs 5 is pivotally connected to the rear end of the lower frame 2, and the upper end is connected to the lower end of the lower frame body 2, which will be described later. It is pivotally connected to a guide portion 14 formed on the left and right upper frame bodies 13 of 12 so as to be movable in the front-back direction and rotatable. 7 and 8 are shafts for pivotally connecting the upper and lower ends, and the shaft 8 on the upper end side is guided by a guide portion 14 formed, for example, on the upper frame of the upper parking platform 12 and formed by a rail extending in the front and back direction. It is now possible to move in the same direction.

The other leg 9 has its lower end attached to the guide portion 3 formed in the lower frame body 2 of the lower fixing structure.
0, and is pivotally connected to the rear end of the upper parking platform 12 via a shaft 11. Nao 6
is a central axis that rotatably connects the intersection center points of the pair of legs 5 and 9.

In the scissor-type lifting guide mechanism of this example, the pair of legs 5 and 9 are of equal length and are provided symmetrically about the central axis 6. 8, 10, and 11 are constructed so as to always form the respective apex positions of the rectangle, and therefore, the upper parking platform 12 that is guided up and down by this always maintains a parallel relationship with the surface of the base 1. Become.

The upper parking lot 12 includes a pair of left and right upper frames 13,
It is comprised of a connecting member (not shown) that connects these left and right upper frames 13, and a pallet (not shown) that is supported by these upper frames and connecting members and forms a direct parking surface for the vehicle.

Reference numeral 16 denotes a hydraulic cylinder device as a drive mechanism for raising and lowering the upper parking platform 12, and in this example, the cylinder body 1 is installed so as to extend upward from the rearmost part of the upper parking platform 12 via the bracket 15.
7, the lower end of the piston rod 18 is pivotally connected to the rearmost part of the lower frame body 2 of the lower fixed structure.
Further, the upper end side of the piston rod 18 is configured to be moved in and out relative to each other by hydraulic pressure. When hydraulic pressure is transmitted to the hydraulic cylinder device 16 (its hydraulic piping is not shown), the piston rod remains in the same position without moving vertically, while the cylinder body 17 moves upward. It turns out. On the other hand, when the oil pressure is removed, the cylinder body 17 moves downward and the piston rod 18 gradually moves into the cylinder body 17. 19 and 20 are parked vehicles, respectively.

Thus, the cylinder body 17 is removed from the state shown in the figure.
When the hydraulic pressure inside is released, as the cylinder body 17 descends, the scissor-type guide mechanism gradually collapses to crush the legs 5 and 9, and the upper parking platform 12 descends while maintaining its parallel state to the base 1. ,
It reaches the lowest point and stops. Therefore, in this state, vehicles can enter and exit the upper parking platform 12.

Next, by force-feeding hydraulic pressure to the cylinder body 17, the upper parking platform 12 rises while maintaining a parallel state, contrary to the above, and is stopped when it reaches its highest point. remains stationary in position. In this state, vehicles can enter and exit the lower parking space.

Figure 2 shows a further improvement to the example shown in Figure 1, in which the upper parking lot moves up and down while always maintaining a parallel relationship with the base, and the front part of the upper parking lot moves up and down slightly as it moves up and down. It is installed so that it can tilt (swing) up and down,
This figure shows an example in which the lifting stroke of the upper parking platform required to obtain the required height for the lower parking space of the parking device is reduced, and the parking space is also reduced.

For such a configuration, in the example shown in Fig. 2, the pair of legs of the scissor-type guide mechanism are made of unequal lengths, and one leg is pivotally connected to the middle of the upper parking platform in the front-rear direction so as to be movable in the same direction. The position of the upper end of the leg is lower than the position of the rectangular apex of the scissor type guide mechanism explained in Fig. 1.
It is set by extending a certain length approximately on the extension line of the leg 105, and the other configurations are basically the same as those in FIG. The explanation will be omitted.

The feature of the example shown in FIG.
In the figure, from the center shaft 106 to the pivot connection shaft 107,
110 and 111 are the same length, and the length up to the pivot connection shaft 108 is actually long, and the pivot connection shaft 108 is located approximately in the vicinity of the extension line of the leg 105. It is in what is being done.

As mentioned above, regarding the examples shown in FIGS. 1 and 2, in order to take safety measures in the event of a failure of the hydraulic cylinder device as described above, that is, to prevent the upper parking platform 12 or 112 from falling, In the present invention, a fall prevention device is assembled, and FIG. 3 shows one embodiment thereof.

In the figure, 201 is a bracket fixed to the lower frame body 2, 102, a foot lever 202 is pivotally supported on the top side of the bracket, and an electromagnetic actuation mechanism 203 is fixed to the rear wall.
In this electromagnetic actuating mechanism 203, a rod 205 that is moved in conjunction with a movable iron core 204 that is protruded and moved by electromagnetic means is connected to the foot lever via a link mechanism 206 that is pivotally connected to the end of the rod 205. 202 is provided to rotate around an axis 207.

That is, the link mechanism 206 includes a crank 206a that swings around a pin 208 on the fixed bracket 201, and a first link 20 that is connected between an intermediate portion of the crank 206a and the rod 205.
6b, and a second link 206c connected between the swinging tip of the crank 206a and the foot lever 202.
When the solenoid 209 built into the electromagnetic actuation mechanism 203 is de-energized, the protrusion of the rod 205 is small (see Fig. 4A), and the foot lever 202 is shown by the solid line in Fig. 3. When the solenoid 209 is energized in a stationary state,
The movable iron core 204 is attracted by the solenoid 209, causing the rod 205 to protrude greatly, and the lever 202
It is designed to flip up to the state shown by the chain line in FIG.

210 is the leg 9 or 1 of the scissor type lifting guide mechanism.
09 is a link rotatably supported around a shaft 211 on the lower end side, and its rotary tip is provided so as to slide on the lower frame body 2 or 102. A shaft 212 that hooks and engages with the hook lever 202 is attached to the rotating tip side thereof.

With such a configuration, the upper parking platform 12 or 1
12 is raised by the hydraulic cylinder device 16 or 116, the scissor-type elevating guide mechanism rises from the folded state and one of its legs 9 or 1
The lower end of 09 is guided by the guide part 3 or 103 of the lower frame body 2 or 102 and slides to the rear side of the device, and when the upper parking platform 12 or 112 reaches the highest point, it reaches the rear limit. Get to the point.

Corresponding to this movement, the foot lever 202 of the fall prevention device is raised from the resting state shown by the solid line in FIG. 3 to the state shown by the chain line in the figure by the electromagnetic actuating mechanism 203, and the leg 9 or 109 reaches its limit position. When the foot lever 202
If the link 210 is hooked to the shaft 212 of the link 210 and returned to the state shown by the solid line in the figure, the scissor-type elevating guide mechanism can be folded even if the hydraulic cylinder device malfunctions. This movement is mechanically stopped by the lever 202, and the upper parking platform 12 or 112 is effectively prevented from falling.

The operation of the electromagnetic actuating mechanism of the fall prevention device is as follows:
Practically speaking, it is desirable that the solenoid 209 is automatically turned on and off in conjunction with the expansion and contraction movement of the hydraulic cylinder device 16 or 116 that pushes up the upper parking platform 12 or 112. It is preferable to provide a limit switch using a movable member such as 109 or leg 5 or 105 to perform the switching.

However, such movement of the foot lever 202 such as rising and engaging is performed by being driven by the electromagnetic mechanism as described above, and also by the shaft of the moving link 210 at the tip of the foot lever 202 as shown in FIG. An inclined surface 202a that engages with 212 and automatically rises to cause movement of the hook.
The electromagnetic structure includes a foot lever 202 and a shaft 21.
It may be made to be driven only for the purpose of releasing the hook in step 2.

In the example shown in FIGS. 3 and 4, the manual switch 21 is operated so that the hook lever 202 can be manually engaged with the shaft 212.
There are 3.

In addition, such a fall prevention device can be applied even when the parking device is mechanical, and in addition to using an electromagnetic actuated type as the fall prevention device itself, it is also possible to use a hydraulic sillage device of the drive device and a hydraulic power source. Alternatively, the operating mechanism side including the foot lever may be assembled on the leg side instead of the lower frame body, and the shaft that hooks and engages with the foot lever may be attached to the lower frame side. It may be fixed.

FIG. 5 shows the operating mechanism 2 of the foot lever 202'.
03' is a hydraulic type. In this case, the foot lever 202' is normally raised to the solid line position shown in the figure by hydraulic action, and in the event of oil leakage, it is moved to the hooking engagement position shown by the chain line using spring force. I'm trying to move it to .

In addition, a valve or oil piping may be used to actively reduce the hydraulic pressure in the operating mechanism to a negative pressure by an oil flow in response to this oil leak.

Further, in FIG. 6, an electromagnetic actuating mechanism 215 including a foot lever 214 is assembled on the leg 9 or 109 side, and the foot lever 215 is attached to the lower frame body 2 or 102 side.
4 shows an example in which a plurality of shafts 216, 216, . According to this type, the fall prevention function is provided by the upper parking platform 12 or 1.
It becomes possible to act in stages at any position of the 12 lift heights, and benefits such as improving safety during maintenance and inspection work can be obtained.

As described above, the two-stage multilevel parking system according to the present invention is equipped with a fall prevention device for the upper parking platform, which is suitable for cases with a scissor-type elevating guide mechanism. It can be said that it is extremely useful in terms of improving safety.

[Brief explanation of drawings]

The drawings are for explaining the present invention, and FIGS. 1 and 2 are diagrams showing an example of a two-level multilevel parking device to which the present invention is applied, and FIG. 3 is a detailed diagram of a fall prevention device. 4A and 4B are cross-sectional explanatory diagrams of the electromagnetic actuating mechanism, FIG. 5 is a diagram showing another example of the fall prevention device, and FIGS. 6A and 6B are diagrams showing still another example of the fall prevention device. . 1,101...Base, 2,102...Bottom frame body, 3,
103...Guide part, 4,104...Elevating guide mechanism,
5,105...Leg, 6,106...Central axis, 7,10
7...axis, 8,108...axis, 9,109...leg, 1
0,110...axis, 11,111...axis, 12,11
2... Upper parking stand, 13, 113... Upper frame body, 14,
114... Guide portion, 15, 115... Bracket,
16,116...Hydraulic cylinder device, 17,117
...Cylinder body, 18,118...Piston rod, 19,119...Parked vehicle, 20,120...Parked vehicle, 201...Bracket, 202,202'
...foot lever, 203...electromagnetic actuation mechanism, 20
3'... Operating mechanism, 204... Movable iron core, 205... Rod,
206...Link mechanism, 206a...Crank, 20
6b...first link, 206c...second link, 20
7...Axis, 208...Pin, 209...Solenoid, 2
10 links, 211...axis, 212...axis, 214...
Foot lever, 215...electromagnetic actuation mechanism, 216...
shaft.

Claims (1)

[Claims] 1. A lower fixing structure including a pair of parallel lower frame bodies fixed on a base and arranged along the left and right sides of a parked vehicle, and a lower frame arranged parallel to the upper position of the lower fixing structure. Two legs are interposed between an upper parking platform including a pair of left and right parallel upper frame bodies corresponding to the body, and the upper frame body and the lower frame body so as to connect them at the rear part in the front and back direction. a pair of left and right scissor-type elevating guide mechanisms provided to guide the elevating movement of the upper parking platform by opening and closing movements of the two legs centering on the intersection point; and a rearmost portion in the front-rear direction of the upper frame body and the lower frame body. A lifting drive device that is arranged to connect these at a position and that drives the upper parking platform up and down, and one leg of the scissor type lifting guide mechanism and the lower frame body can be mechanically engaged with each other. a fall prevention device for the upper parking platform provided at The drop prevention device is provided to allow opening and closing movement of the two legs by moving in the direction, and the fall prevention device
A lower moving foot lever assembled to either the lower frame body or the lower end side of the leg that moves relative to the lower frame body, and the lower moving foot lever is fixed to the other of the lower frame body or the leg and hooks into engagement with the foot lever. 1. A two-stage multilevel parking device, characterized in that it is configured as a leg movement locking means including a shaft.