Parking device

Abstract

To provide a parking device that makes it easy to check extension of wires or chains.SOLUTION: A parking device has a platform 10 and parks vehicles in a three-dimensional manner by loading vehicles onto the platform 10. The platform 10 is suspended by a cable member 23 and raised and lowered. The platform 10 has a through hole 57. The cable member 23 has a locking section 66. The cable member 23 passes through the through hole 57 and is located below the through hole 57. When the cable member 23 is raised, the locking section 66 directly or indirectly contacts the through hole 57 and raises the platform 10.SELECTED DRAWING: Figure 11

Description

[Technical field]

[0001] The present invention relates to a mechanical parking device, and more particularly to a parking device equipped with a mechanism for raising and lowering a pallet using a wire or the like. [Background technology]

[0002] 2. Description of the Related Art Mechanical parking systems are known as systems that make effective use of limited land areas and allow parking of a greater number of vehicles. A mechanical parking system is a system for parking cars in a multi-level manner. A typical mechanical parking system has a pallet on which the car is placed and a lifting device for raising and lowering the pallet. In a mechanical parking system, a car is introduced into a pallet storage area from a vehicle entrance and exit, the car is placed on the pallet, and the pallet is raised and lowered to place the car on a specified floor. In addition, what is called a puzzle-type multi-story parking system not only raises and lowers the pallet, but also has a function to move the pallet sideways. A multi-story parking system is disclosed in, for example, Patent Document 1. In the parking device disclosed in Patent Document 1, a pallet is suspended by a chain. In the parking device disclosed in Patent Document 1, a balance weight is attached to the middle of the chain to prevent excess chain from getting tangled. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2021-161748 A Summary of the Invention [Problem to be solved by the invention]

[0004] Wires and chains stretch when used over a long period of time. In other words, when a wire is used over a long period of time, the entire wire stretches evenly. When a chain is used over a long period of time, the spacing between the pins of each link widens, resulting in an increase in the overall length. It is desirable to replace cable members such as wires and chains at regular intervals, and it is also advisable to check their elongation periodically. The present invention focuses on the above-mentioned problems and provides a parking device that makes it easy to check the stretch of the wire or chain. [Means for solving the problem]

[0005] An embodiment for solving the above-mentioned problems is a parking device having a loading platform, a vehicle is loaded onto the loading platform, and the vehicle is parked in a multi-level manner, the loading platform is suspended by a rope member and raised and lowered, the loading platform has a through hole, the rope member is provided with a locking portion, the rope member passes through the through hole and is located below the through hole, and when the rope member is pulled up, the locking portion comes into direct or indirect contact with the through hole to raise the loading platform.

[0006] In the parking device of this aspect, when the cable member is raised, the locking part rises and comes into direct or indirect contact with the through hole, thereby raising the platform. On the other hand, when the cable member is lowered to lower the platform to a predetermined position and the platform is supported by the floor or some other member, the locking part further falls and separates from the through hole. If the cable member is new, the amount of descent of the engaging portion will be small, whereas if the cable member is stretched, the amount of descent of the engaging portion will be large. Therefore, by recording the fluctuation in the amount of descent of the engaging portion, the amount of elongation of the cable member can be known. In addition, in this aspect, since the through hole is provided in the mounting table, it is easy for the worker to check.

[0007] Another aspect for solving the above-mentioned problem is a parking device having a platform, a vehicle is loaded onto the platform, and the vehicle is parked in a three-dimensional manner, the platform is suspended by a rope member and raised and lowered, the platform has a through hole, the rope member is provided with a locking portion, and the platform has an elastic body and a regulating member that regulates the overall length of the elastic body, the regulating member is in direct or indirect contact with the locking portion and suspended from the rope member, the elastic body is between the through hole and the locking portion, the rope member is biased downward by the elastic body, and when the rope member is pulled up, the elastic body is compressed and shrinks, and the regulating member moves to directly or indirectly contact the through hole and raise the platform.

[0008] In the parking device of this aspect, when the cable member is raised, the locking part rises and comes into direct or indirect contact with the through hole, thereby raising the platform. On the other hand, when the cable member is lowered to lower the platform to a predetermined position and the platform is supported by the floor or some other member, the locking part further falls and separates from the through hole. If the cable member is new, the amount of descent of the engaging portion will be small, whereas if the cable member is stretched, the amount of descent of the engaging portion will be large. Therefore, by recording the fluctuation in the amount of descent of the engaging portion, the amount of elongation of the cable member can be known. In addition, in this aspect, since the through hole is provided in the mounting table, it is easy for the worker to check. According to this aspect, since the cord member is urged downward by the elastic body, any slack or looseness in the cord member is removed, and the exact length can be confirmed. According to this embodiment, the cable member is pulled downward and straightened, so that the cable member does not protrude toward the vehicle installation area and contact with the vehicle can be prevented. Also, the cable member can be prevented from coming off the pulley, the chain, etc. It should be noted that the parking device disclosed in Patent Document 1 has a balance weight, but this balance weight pulls the center of the chain to prevent excess chain from getting tangled, and is suspended between the sprocket and the platform, so it cannot eliminate slack in the chain. The parking device of this embodiment has a regulating member that regulates the overall length of the elastic body. In the parking device of this embodiment, when the cable member is pulled up, the elastic body is compressed and shrinks, but the total length of the elastic body is limited by the regulating member, so that it does not shrink beyond a certain limit. When the elastic body shrinks to a certain limit, the regulating member comes into contact with the through hole directly or indirectly, and raises the platform. Therefore, excessive force is not applied to the elastic body, and the elastic body is not damaged. In addition, in the parking device of this embodiment, the regulating member is not fixed to the stand side, but is suspended from the wire member. Therefore, the regulating member is essentially located near the lower end of the wire member to protect the wire member.

[0009] In the above-mentioned aspect, it is desirable that the regulating member is a collar member, the elastic body is a spring, the spring is a compression coil spring with a space in the center, the natural length of the spring is longer than that of the collar member, the spring is arranged within the collar member, the rope member passes through the space in the spring and the engagement portion is on the underside of the spring, and when the rope member is pulled up, the spring is compressed and contracts, and the collar member comes into contact directly or indirectly with the through hole to raise the mounting table.

[0010] In the parking device of this embodiment, the overall length of the elastic body is restricted by the collar member. In the parking device of this aspect, when the cable member is pulled up, the spring is compressed and shortened, but the total length of the spring is limited by the collar member, so it cannot shorten beyond a certain limit. When the spring shortens to a certain limit, the collar member comes into contact directly or indirectly with the through hole, raising the platform. Therefore, excessive force is not applied to the spring, and the spring is not damaged. In addition, according to this embodiment, the spring is not damaged because it is surrounded by a collar. Also, the spring has an uneven surface and is easily caught by other components when the mounting table is raised and lowered, but according to this embodiment, the spring is covered by a collar and is less likely to be caught by other components when the mounting table is raised and lowered.

[0011] Another aspect for solving a similar problem is a parking device having a platform, a vehicle is loaded onto the platform, and the vehicle is parked in a three-dimensional manner, the platform is suspended by a rope member and raised and lowered, the platform has a through hole, a collar member and a spring, the spring is a compression coil spring with a space in the center, the natural length of the spring is longer than that of the collar member, the spring is arranged within the collar member, the rope member passes through the space in the spring and has the locking portion on the underside of the spring, the collar member is in direct or indirect contact with the locking portion and is suspended from the rope member, and when the rope member is pulled up, the spring is compressed and contracted, and the collar member moves to directly or indirectly come into contact with the through hole and raise the platform.

[0012] In the parking device of this embodiment, the exact length of the rope member can also be confirmed. In the parking device of this embodiment, too, excessive force is not applied to the spring, and the spring is not damaged. In addition, according to this embodiment, the spring is not damaged because it is surrounded by a collar. Also, the spring has an uneven surface and is easily caught by other components when the mounting table is raised and lowered, but according to this embodiment, the spring is covered by a collar and is less likely to be caught by other components when the mounting table is raised and lowered.

[0013] In each of the above aspects, it is desirable that the mounting base has a vehicle placement area for mounting a vehicle, and that the through hole is located in an area that fits within the width direction of the vehicle placement area and in a position that protrudes beyond the vehicle placement area.

[0014] According to this aspect, the overall width of the platform is narrowed, so that the overall shape of the parking device can be made compact. Therefore, the wire members do not interfere with the vehicle.

[0015] In each of the above-mentioned aspects, it is desirable that the mounting table has a wheel mounting area where the wheels of the vehicle are in contact with the ground, the mounting table has a cable connection portion, the cable connection portion has a support plate having the through hole, and the support plate is provided at a position higher than the wheel mounting area.

[0016] In the parking device of this aspect, the through hole is provided in the support plate, and the support plate is provided at a position higher than the wheel installation area. Therefore, when the platform is lowered to the ground floor, there is a drop between the ground surface and the support plate, and the lowering margin of the locking part is secured.

[0017] In each of the above-mentioned aspects, it is preferable that the cord member is marked.

[0018] According to this embodiment, it is easy to check the degree of stretch of the cord member.

[0019] In each of the above-mentioned aspects, it is desirable to have a foundation frame that constitutes the floor on which the vehicle is placed, and a lateral frame that is installed on a specified floor of the foundation frame and laterally travels on that floor, and the loading platform is suspended from the lateral frame by a cable member and raised and lowered.

[0020] According to this aspect, the platform can be moved laterally, so that more vehicles can be accommodated. Effect of the Invention

[0021] The parking device of the present invention makes it easy to check the stretch of cable members such as wires and chains, and facilitates maintenance. [Brief description of the drawings]

[0022] [Figure 1] FIG. 1 is a front view of a parking device according to an embodiment of the present invention, showing a state in which no vehicle is loaded. [Diagram 2] FIG. 2 is a side view of the parking device according to the embodiment of the present invention, showing a state in which no vehicle is loaded. [Diagram 3]FIG. 1 is a front view of a parking device according to an embodiment of the present invention, showing a state in which a vehicle is loaded. [Figure 4] FIG. 1 is a side view of a parking device according to an embodiment of the present invention, showing a vehicle mounted thereon. [Diagram 5] 2 is a perspective view of the parking unit in the parking device of FIG. 1 viewed from the rear, showing the state in which the loading platform is lowered. [Figure 6] 2 is a perspective view of the parking unit in the parking device of FIG. 1 viewed from the rear, showing the state in which the loading platform is raised. [Figure 7] 2 is a perspective view of the parking unit in the parking device of FIG. 1 as viewed from the front, showing the state in which the loading platform is lowered. [Figure 8] 2 is a perspective view of the parking unit in the parking device of FIG. 1 as viewed from the front, showing the state in which the loading platform is raised. [Figure 9] FIG. 2 is an explanatory diagram showing the suspension path of the wire in the parking unit. [Figure 10] FIG. 1 is an explanatory diagram showing the suspension path of the wire in a parking unit, where (a) shows the suspension path that is connected from the winding drum via a pulley to the front side of the mounting base, and (b) shows the suspension path that is connected directly from the winding drum to the rear side of the mounting base. [Figure 11] 10A and 10B are explanatory diagrams showing the operation of the wire and slack removing device when the lifting platform is raised and lowered, in which (a) shows the state when the platform is in mid-air, and (b) shows the state when the platform has landed. [Figure 12] FIG. [Figure 13] FIG. 13 is an exploded perspective view of the slack eliminating device of FIG. 12. [Figure 14] 13A and 13B are cross-sectional views illustrating the operation of the slack eliminating device in FIG. 12, where (a) shows a state in which the mounting table has landed, and (b) shows a state in which the mounting table is in midair. [Figure 15] 13 is a cross-sectional view illustrating the operation of the slack eliminating device in FIG. 12, showing a state in which the lower end of the wire is swaying. [Figure 16] 13(a) and 13(b) are cross-sectional views showing a modified example of the slack eliminating device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0023] Hereinafter, an embodiment of the present invention will be described. First, an overview of the parking device 1 will be described. In the following description, the "front side" and the like refer to the front side of the parking device 1, which is the side from which the vehicle 100 enters and exits. The "rear side" and the like refer to the rear side of the parking device 1, which is the opposite side to the "front side." The "side" and "width direction" refer to the left-right direction in FIG. 1. The parking device 1 of this embodiment is a mechanical parking device. The parking device 1 is a puzzle-type multi-story parking device, and has a function of raising and lowering a pallet (mounting platform) 10 and a function of moving it sideways. The parking device 1 of this embodiment has a base frame 2, on which a plurality of parking units 3 are installed.

[0024] The foundation frame 2 is framed by steel materials and constitutes the outer shell of the parking device 1. As shown in Figures 1 to 4, the foundation frame 2 has a five-story structure and is divided into the ground floor A, the second floor B, the third floor C, the fourth floor D, and the fifth floor E. As shown in Figs. 1 and 3, the base frame 2 has a first space a, a second space b, and a third space c in the width direction. On each floor, lateral rails 11a, 11b are installed as shown in Figures 2 and 4. Both of the lateral rails 11a, 11b are steel members installed in the width direction of the foundation frame 2. The lateral rail 11a is installed on the front side of each floor, and the lateral rail 11b is installed on the rear side of each floor.

[0025] The parking unit 3 is composed of a pair of a traverse frame 5 and a pallet 10, as shown in Figs. The traverse frame 5 has a frame body 12, a hoisting device 13, a traverse mechanism 15, a pulley 16, and a fall prevention device 17. Two pulleys 16 are attached to the frame body 12, and four fall prevention devices 17 are attached to the frame body 12. The frame body 12 is a generally rectangular frame made of steel. That is, the frame body 12 is configured with a front horizontal member 41 and a rear horizontal member 42 arranged in parallel with each other and a vertical member 43 connected between them to form a rectangle.

[0026] The winding device 13 is composed of two winding drums 20a, 20b and a drive mechanism 21 that rotates the winding drums 20a, 20b. The winding drums 20a and 20b are for winding wires (cord members) 22a, 22b, 23a, and 23b. The winding drums 20a and 20b are provided with drum side grooves 25 into which the wires 22a, 22b, 23a, and 23b fit. The drive mechanism 21 is made up of a geared motor 26, a connecting member 18 that connects the two winding drums 20a, 20b, and a power transmission mechanism .

[0027] In this embodiment, two winding drums 20a, 20b are connected by a connecting member 18. That is, the winding drums 20a, 20b are attached to both ends of the connecting member 18. A sprocket 27 is provided in the middle of the connecting member 18. A sprocket 30 is attached to the geared motor 26. A chain 31 is wound around the sprocket 30 on the geared motor 26 and a sprocket 27 of the connecting member 18. That is, in this embodiment, the two sprockets 27, 30 and the chain 31 constitute a power transmission mechanism 28.

[0028] The traverse mechanism 15 is made up of four rollers 38 and a drive device (not shown).

[0029] The fall prevention device 17 is a known device, and a stopper member 33 protrudes from and retracts into a box body 32. The box body 32 of the fall prevention device 17 is a vertically long rectangular parallelepiped as shown in Fig. 11. The box body 32 is formed with a slit 37 through which the stopper member 33 protrudes. The box 32 houses a solenoid and a spring (not shown). The stopper member 33 is substantially triangular, and has a substantially horizontal receiving surface 48 and an inclined surface 36 as shown in FIG. The stopper member 33 is constantly protruding from the box body 32 by a spring (not shown). The position of the stopper member 33 is as shown in Fig. 11, in which the substantially horizontal receiving surface 48 faces upward, and the amount of protrusion of the inclined surface 36 increases from the bottom to the top. As described above, a solenoid is built into the box body 32, and the stopper member 33 is recessed into the box body 32 by driving the solenoid.

[0030] Next, the relationship between the members constituting the traverse frame 5 will be described. As described above, the traverse frame 5 has the frame body 12, the hoisting device 13, the traverse mechanism 15, two pulleys 16, and four fall prevention devices 17 provided thereon. The hoisting device 13 is attached to the rear cross member 42 of the frame body 12. The hoisting device 13 is installed on the rear cross member 42. The traverse mechanism 15 is provided on the rear cross member 42 and the front cross member 41 of the frame body 12. That is, two rollers 38 protrude rearward from the rear cross member 42. Also, two rollers 38 protrude forward from the front cross member 41.

[0031] The pulley 16 is disposed on the vertical member 43 of the frame body 12 in the vicinity of the front horizontal member 41 . Two of the four fall prevention devices 17 are vertical members 43 and are provided near the front horizontal member 41. The other two of the four fall prevention devices 17 are vertical members 43 and are provided near the rear horizontal member 42. The four fall prevention devices 17 each have their upper end supported by a vertical member 43 , and most of the box body 32 hangs down from the vertical member 43 . The fall prevention devices 17 are all installed in a position in which the stopper members 33 face the inside of the traverse frame 5. The fall prevention device 17 may be attached to any member or at any position. For example, the fall prevention device 17 may be attached to the front horizontal member 41 or the rear horizontal member 42 of the frame main body 12, the pillars or beams of the foundation frame 2, the lateral rails 11a and 11b, or the like. Furthermore, there are no limitations on the shape or structure of the fall prevention device 17, as long as some kind of obstacle appears under the pallet 10 to prevent the pallet 10 from falling.

[0032] Next, the pallet 10 will be described. The pallet 10 is a platform on which the vehicle 100 is placed. The cross-sectional shape of the main body of the pallet 10 is "concave", and there is a vehicle placement area 45 in which the vehicle 100 is placed in the center in the width direction. The vehicle placement area 45 is a flat area occupied by the vehicle 100. In this embodiment, the wheels of the vehicle 100 come into contact with the ground in the vehicle placement area 45. In this embodiment, the portion of the vehicle placement area 45 where the wheels of the vehicle are placed is the wheel placement area. There are raised portions 46 on both sides of the vehicle placement area (vehicle mounting portion) 45. The upper surface of the raised portions 46 is flat. In the actual pallet 10, there are protrusions and cutouts on the sides and front and rear end faces of the main body for attaching accessories, but the vehicle placement area 45 is a rectangular area that is part or all of the main body of the pallet 10. The front end of the vehicle placement area 45 is the front end of the main body of the pallet 10, and the rear end of the vehicle placement area 45 is the rear end of the main body of the pallet 10. A guide roller 47 is provided on the side surface of the pallet 10 near the rear end. The guide roller 47 rotates freely.

[0033] The parking unit 3 is composed of a traverse frame 5 and a pallet 10, and the pallet 10 is suspended from the traverse frame 5 so as to be able to rise and fall. In this embodiment, the pallet 10 is suspended by four wires 22a, 22b, 23a, and 23b. In this embodiment, the lifting mechanism is made up of members that suspend the four wires 22a, 22b, 23a, and 23b and members that pay out and wind in the four wires 22a, 22b, 23a, and 23b. That is, in this embodiment, the lifting mechanism is made up of the wires 22a, 22b, 23a, and 23b, the winding drums 20a and 20b that wind the wires, the geared motor 26 that drives the winding drums 20a and 20b, the connecting member 18, the power transmission mechanism 28, and the pulley 16 that suspends the wires. The structure for rotating the winding drums 20a and 20b is not limited, and each of the winding drums 20a and 20b may be provided with a separate motor for rotating the winding drums 20a and 20b. In addition, the winding drums 20a and 20b may be directly connected to a geared motor, or the winding drums 20a and 20b may be connected to a geared motor. The motor may be built in. The wires 22a and 22b are front-hanging wires, and one end of each wire is connected to the front side of the pallet 10. The wires 23a and 23b are rear-hanging wires, and one end of each wire is connected to the rear side of the pallet 10.

[0034] In this embodiment, one front hanging wire 22a and one rear hanging wire 23a are wound around one winding drum 20a, and one front hanging wire 22b and one rear hanging wire 23b are wound around the other winding drum 20b. The base ends of the front hanging wires 22a, 22b are wound around the winding drums 20a, 20b, and the tip ends are connected to the front side of the pallet 10 via the pulley 16. That is, the winding path of the front hanging wires 22a, 22b is as shown in Figures 9 and 10(a), and is connected from the winding drums 20a, 20b to the front side of the pallet 10 via the pulley 16. The suspension position of the front hanging wires 22a, 22b between the winding drums 20a, 20b and the pulley 16 is inclined slightly downward from the winding drums 20a, 20b toward the pulley 16. The suspension position of the front hanging wires 22a, 22b between the pulley 16 and the pallet 10 is vertically downward.

[0035] The winding paths of the rear hanging wires 23a, 23b are as shown in Figs. 9 and 10(b), and are connected directly to the rear side of the pallet 10 from the winding drums 20a, 20b. The rear suspension wires 23a, 23b between the winding drums 20a, 20b and the pallet 10 are directed vertically downward.

[0036] Next, the relationship between the base frame 2 and the parking unit 3 will be described. In the parking device 1 of this embodiment, as shown in Fig. 1, two parking units 3 are installed from the second floor B portion to the fourth floor D portion of the base frame 2, and three parking units 3 are installed on the fifth floor E portion of the base frame 2. In this way, on the top floor, the number of spaces and the number of parking units 3 are the same, and on the intermediate floors, the number of parking units 3 is less than the number of spaces. The parking unit 3 is placed on the lateral rails 11a, 11b of the base frame 2. That is, the rollers 38 of the lateral mechanism 15 protruding in the front-rear direction from the frame body 12 of the lateral frame 5 are placed on the lateral rails 11a, 11b installed at the front and rear of the base frame 2. Therefore, by driving the rollers 38 of the traverse mechanism 15, the parking unit 3 moves laterally.

[0037] Next, the basic functions of the parking device 1 will be described. The parking device 1 of this embodiment is a puzzle-type multi-story parking device, and on the top floor, the fifth floor E, parking units 3 are installed in all of the first space a, second space b, and third space c. In contrast, there are no parking units 3 on the ground floor A, which is the loading and unloading floor. On the intermediate floors, the second floor B, third floor C, and fourth floor D, parking units 3 are installed in a number that is one less than the number of spaces.

[0038] When parking the vehicle 100 on the ground floor A, a gate (not shown) is opened and the vehicle 100 is placed into any one of the first space a, the second space b, or the third space c on the ground floor A. When parking the vehicle 100 in a parking unit 3 installed on an upper floor, the pallet 10 of the parking unit 3 is lowered to the ground floor (lowered position) A. For example, when parking the vehicle 100 in the parking unit 3 located in the third space c at the right end of the fourth floor D, the parking units 3 on the lower floors, the third floor C and the second floor B, are moved sideways to open the bottom of the third space c at the right end of the fourth floor D where the vehicle 100 is to be lowered. Alternatively, when the vehicle 100 located in the second space b in the center of the fourth floor D is to be lowered, the parking units 3 are moved sideways to move the parking unit 3 to a position where the space below is vacant.

[0039] Then, the driving mechanism 21 is driven to rotate the winding drums 20a and 20b, and the four wires 22a, 22b, 23a, and 23b are paid out from the winding drums 20a and 20b. As a result, the pallet 10 of the parking unit 3 is lowered to the ground floor A, which is the lowering position. Then, the vehicle 100 is placed on the pallet 10, the drive mechanism 21 is driven to rotate the winding drums 20a, 20b in the reverse direction, and the four wires 22a, 22b, 23a, 23b are wound around the winding drums 20a, 20b, and the four wires 22a, 22b, 23a, 23b are pulled up. As a result, the pallet 10 of the parking unit 3 rises and stops at a predetermined raised position. The raised position of the pallet 10 is near the traverse frame 5 and is slightly lower than the traverse frame 5.

[0040] Next, a characteristic configuration of the parking device 1 of this embodiment will be described. The parking device 1 of this embodiment has a function of removing slack in the rear hanging wires 23a, 23b. In addition, the parking device 1 of this embodiment has an advantage that the amount of stretch of the rear hanging wires 23a, 23b can be easily confirmed. That is, the wires stretch when used over a long period of time. As described above, the rear hanging wires 23a, 23b are connected directly from the winding drums 20a, 20b to the rear side of the pallet 10. That is, the rear hanging wires 23a, 23b are in a state of hanging down from the winding drums 20a, 20b. In reality, the rear hanging wires 23a, 23b should be linear from the winding drums 20a, 20b to the pallet 10.

[0041] However, in the past, when the rear hanging wires 23a, 23b stretch, the sections from the winding drums 20a, 20b to the pallet 10 bend and sag, resulting in a curved shape. As a result, there is a possibility that the rear hanging wires 23a, 23b may protrude into the vehicle placement area 45 and come into contact with the vehicle 100. In addition, when the rear hanging wires 23a, 23b stretch and sag from the winding drums 20a, 20b to the pallet 10, there is a possibility that the rear hanging wires 23a, 23b may come off the grooves 25 of the winding drums 20a, 20b.

[0042] The parking device 1 of the present embodiment solves the above-mentioned problems by providing the slack eliminating device 50 on the pallet 10. As shown in FIG. 13, the slack eliminating device 50 is made up of a main body 53, a compression coil spring (elastic body) 51, and a collar member 52.

[0043] The main body 53 is a frame made of steel. The main body 53 is a member that connects the rear suspension wires 23a, 23b to the pallet 10, and functions as a cable connecting portion. The main body 53 is a combination of a support plate 55 and two side plate sections 56, and has a top surface formed by the support plate section 55 and side surfaces formed by the two side plate sections 56. The main body 53 has a base 58 that is attached to the pallet 10 and a protruding portion 60 that protrudes from the base 58 . The support plate 55 is a member that constitutes the top surface of the protruding portion 60. The support plate 55 is in a horizontal position, and has a through hole 57 provided in the center. A space 75 surrounded by the support plate 55 and the side plate 56 is provided below the support plate 55.

[0044] The compression coil spring (elastic body) 51 is the same as a known one, and is made of a piano wire wound in a spiral shape, with a space 68 in the center. The natural length of the compression coil spring (elastic body) 51 is longer than that of the collar member 52.

[0045] The collar member 52 is a cylinder made of metal and has a through space 67 in the center. The inner and outer surfaces of the collar member 52 are smooth. The inner diameter of the collar member 52 is larger than the outer diameter of the compression coil spring (elastic body) 51. The collar member 52 is a restricting member that restricts the overall length of the compression coil spring (elastic body) 51. The ends of the rear hanging wires 23a and 23b are provided with locking portions 66. The locking portions 66 are made of a metal plate. The diameter of the locking portions 66 is larger than the diameter of the collar member 52, and the locking portions 66 cannot pass through the space 67 of the collar member 52. Further, near the tip of the rear hanging wires 23a, 23b, there are provided scales (marks) 71. The scales (marks) 71 used in this embodiment are lines marked in millimeters or centimeters.

[0046] In the slack removal device 50 used in this embodiment, a compression coil spring 51 is inserted into the space 67 of the collar member 52, and both of these are arranged in a space 75 surrounded by the support plate portion 55 and side plate portion 56 of the main body portion 53 (cable connection portion). The ends of the rear hanging wires 23a, 23b pass through a through hole 57 provided in the support plate portion 55 of the main body portion 53 (cord connection portion) and a central space 68 of the compression coil spring 51, and reach the lower portion of the collar member 52. In other words, the locking portion 66 of the rear hanging wires 23a, 23b is located at the lower portion of the collar member 52. The collar member 52 is not attached to the main body portion 53 (the cable connection portion), and therefore the collar member 52 can move freely along the rear hanging wires 23a and 23b. In this embodiment, the compression coil spring 51 is disposed in the collar member 52, the rear suspension wires 23a, 23b pass through a space 68 in the compression coil spring 51, and the locking portion 66 is located below the compression coil spring 51. In this embodiment, the locking portion 66 is in direct contact with the collar member 52 and is suspended from the rear suspension wires 23a, 23b. Note that there may be some intermediate material between the locking portion 66 and the collar member 52. Similarly, there may be some intermediate material between the support plate portion 55 and the collar member 52.

[0047] The body 53 of the slack eliminating device 50 is a part of the pallet 10. In other words, the body 53 of the slack eliminating device 50 is welded to the rear part of the body portion of the pallet 10, and the body 53 of the slack eliminating device 50 is fixed integrally to the body portion of the pallet 10. The main body (cable connection part) 53 of the slack removal device 50 is frame-shaped and protrudes rearward from the vehicle placement area 45 of the pallet 10 as shown in Figures 11 and 12. Also as shown in Figures 11 and 12, the support plate part 55 of the main body (cable connection part) 53 is located above the wheel installation area 70 where the wheels of the pallet 10 come into contact with the ground. As shown in Figures 11 and 12, the main body (cable connection portion) 53 of the slack removal device 50 protrudes rearward from the vehicle placement area 45 of the pallet 10, and the through hole 57 provided in the support plate portion 55 is located in an area that fits within the width direction of the vehicle placement area 45 and is in a position that protrudes rearward from the vehicle placement area 45.

[0048] Next, the function of the slack eliminating device 50 will be described. When the pallet 10 is in the hollow position, as shown in Figures 11(a) and 14(b), the load of the pallet 10 is applied to the rear hanging wires 23a, 23b, and the load is applied to the compression coil spring 51 from the locking parts 66 of the rear hanging wires 23a, 23b. As a result, the compression coil spring 51 contracts against the elastic force and is completely housed in the collar member 52. Therefore, the locking parts 66 of the rear hanging wires 23a, 23b directly contact the lower end of the collar member 52, and the upper end of the collar member 52 directly contacts the lower surface of the support plate part 55. Therefore, the load applied to the compression coil spring 51 is limited, and the compression coil spring 51 does not undergo plastic deformation. When the pallet 10 is in the hollow position, a tensile force is applied to the rear suspension wires 23a and 23b, and the rear suspension wires 23a and 23b do not slacken.

[0049] When the pallet 10 lands on the ground floor A, the load of the pallet 10 is not applied to the rear suspension wires 23a and 23b. Therefore, the compressive force applied to the compression coil spring 51 disappears, and the compression coil spring 51 expands as shown in FIG. 11(b) and FIG. 14(a). As a result, the locking parts 66 of the rear suspension wires 23a and 23b move downward, and the rear suspension wires 23a and 23b are pulled by the compression coil spring 51. Therefore, the rear suspension wires 23a and 23b do not slacken. At this time, the upper end of the collar member 52 leaves the lower surface of the support plate part 55, but the lower end of the collar member 52 is in contact with the locking parts 66 of the wires 23a and 23b. That is, since the collar member 52 is suspended from the rear suspension wires 23a and 23b, when the wires 23a and 23b have slack, the upper end of the collar member 52 leaves the lower surface of the support plate part 55. As described above, since the collar member 52 is suspended from the rear suspension wires 23a, 23b, the lower end of the collar member 52 contacts the locking portions 66 of the wires 23a, 23b. In addition, in this embodiment, the support plate portion 55 of the main body portion 53 (cable connection portion) is located above the wheel installation area 70 where the wheels of the pallet 10 are grounded, so that the support plate portion 55 is above the installation surface (ground surface) of the pallet 10, and movement space is secured for the engagement portion 66 to move downward.

[0050] When the pallet 10 lands on ground floor A, the locking portions 66 of the rear suspension wires 23a, 23b move downward, so that the vicinity of the lower ends of the rear suspension wires 23a, 23b are pulled into the through holes 57 of the support plate portions 55. In this embodiment, scales (marks) 71 are provided near the tips of the rear hanging wires 23a, 23b, so that the position of the scales can be used to check the retraction amount of the rear hanging wires 23a, 23b when the pallet 10 lands on the ground floor A. Since the retraction amount of the rear hanging wires 23a, 23b correlates with the extension amount of the rear hanging wires 23a, 23b, by checking the position of the scales 71, the extension amount of the rear hanging wires 23a, 23b can be known.

[0051] Specifically, when the rear hanging wires 23a, 23b stretch, the stopping position of the locking portion 66 when the pallet 10 lands on the ground floor A is lower than when the wires 23a, 23b are new. As a result, the amount of the rear hanging wires 23a, 23b pulled into the through holes 57 of the support plate portion 55 increases, and the relative position of the scale (mark) 71 and the support plate portion 55 changes compared to when the wires are new. Then, by reading the scale, it is possible to know specifically how many millimeters the stretch amount is.

[0052] When the elongation of the rear hanging wires 23a, 23b reaches a certain amount, it is recommended to remove the slack from the wires 23a, 23b. There are two methods for removing slack: adjusting the base end side of the rear hanging wires 23a, 23b, and adjusting the distal end side of the rear hanging wires 23a, 23b. The method of adjusting the base end side of the rear hanging wires 23a, 23b is to remove the rear hanging wires 23a, 23b from the winding drums 20a, 20b, and change the attachment positions of the rear hanging wires 23a, 23b relative to the winding drums 20a, 20b, thereby substantially shortening the effective length of the rear hanging wires 23a, 23b. When adjusting the distal end of the rear hanging wires 23a, 23b, the position of the engaging portion 66 is shifted upward, and the effective length of the rear hanging wires 23a, 23b is substantially shortened.

[0053] When the pallet 10 has landed on the ground floor A, a worker may touch the middle parts of the rear suspension wires 23a, 23b. When a worker touches the middle parts of the rear suspension wires 23a, 23b, the rear suspension wires 23a, 23b bend, and the lower ends of the wires 23a, 23b swing as shown in FIG. However, in this embodiment, the lower ends of the wires 23a, 23b are covered with the collar member 52, so that the wires 23a, 23b and the compression coil spring 51 will not get caught on other members.

[0054] That is, when the pallet 10 lands on the ground floor A, the load of the pallet 10 is not applied to the rear suspension wires 23a and 23b. Therefore, the compressive force applied to the compression coil spring 51 disappears, and the compression coil spring 51 expands as shown in FIG. 11(b) and FIG. 14(a). As a result, the locking parts 66 of the rear suspension wires 23a and 23b move downward, and the rear suspension wires 23a and 23b are pulled by the compression coil spring 51. Therefore, the rear suspension wires 23a and 23b do not slacken. At this time, the upper end of the collar member 52 leaves the lower surface of the support plate part 55, but the lower end of the collar member 52 is in contact with the locking parts 66 of the wires 23a and 23b. Therefore, the collar member 52 is present around the compression coil spring 51, and the compression coil spring 51 is protected by the collar member 52. In addition, the surface of the compression coil spring 51 is uneven, and the wire spacing changes due to external force, making it prone to gaps and prone to getting caught on things, but the surface of the collar member 52 is smooth and no gaps are formed. Therefore, for example, as shown in FIG. 15, even if the collar member 52 hits the side plate portion 56 of the main body portion 53, it will not get caught.

[0055] The slack removal device 50 described above has a frame-shaped main body 53, and the main body 53 is provided with a through hole 57 through which the wire 23 passes. The slack removal device 50 of this embodiment can separate the wire 23 from the vehicle 100 and is less likely to damage the vehicle 100. Furthermore, in the slack removal device 50 of this embodiment, the through hole 57 is located at a high position, so that a pulling allowance for the wire 23 can be secured. However, the present invention is not limited to this configuration, and a frame-shaped main body 72 may be provided on an edge 73 of the main body of the pallet 10 as shown in FIG. 16(a). Also, as shown in FIG. 16(b), a through hole 57 may be provided directly on the edge 73 of the main body of the pallet 10.

[0056] Also, the restricting member such as the collar member and the elastic body may be omitted, and a cable member such as a wire or chain may simply be passed through the through hole 57 .

[0057] In the parking device 1 described above, the slack eliminating device 50 is provided at the rear of the pallet 10, and the rear hanging wires 23a, 23b are connected to the pallet 10. In the embodiment described above, there is no slack eliminating device on the front hanging wires 22a, 22b side, and the front hanging wires 22a, 22b are directly connected to the pallet 10.

[0058] The reasons for this are as follows: That is, as described above, the base ends of the front hanging wires 22a, 22b are wound around the winding drums 20a, 20b, and the tip ends are connected to the front side of the pallet 10 via the pulley 16. Therefore, as shown in Fig. 11(b), when the pallet 10 lands, the portion between the winding drums 20a, 20b and the pulley 16 of the front hanging wires 22a, 22b is lowered by the weight of the front hanging wires 22a, 22b themselves, and tension is applied to the front hanging wires 22a, 22b. Therefore, an upward tension is applied to the front hanging wires 22a, 22b between the pulley 16 and the pallet 10, and a pulling force is also applied to the portion wound around the winding drums 20a, 20b, so that the front hanging wires 22a, 22b do not come out of the groove 25.

[0059] Furthermore, by observing the degree of bending of the front hanging wires 22a, 22b between the winding drums 20a, 20b and the pulley 16, the amount of elongation can be known. In this embodiment, for the reasons discussed above, the slack eliminating device 50 is only on the rear side of the pallet 10, and not on the front side. However, the present invention is not limited to this configuration, and the slack eliminating device 50 may be provided on the front side of the pallet 10. Also, the slack eliminating device 50 may be provided only on the front side of the pallet 10.

[0060] When the pallet 10 is in a hollow position, it is desirable that the pallet 10 be inclined slightly backward. That is, in many cases, a car stopper is installed at the rear end of the pallet 10. On the other hand, there is no obstacle on the front end side of the pallet 10, as it would be an impediment to traffic. Therefore, in order to prevent the vehicle 100 from protruding from the pallet 10 when the vehicle 100 moves due to vibration or the like, it is desirable to keep the pallet 10 in a position tilted backward. When this configuration is adopted, when the pallet 10 is lowered to the ground floor, the rear suspension wires 23a, 23b will be in excess by at least the length required to place the pallet 10 in a rearwardly tilted position, causing the rear suspension wires 23a, 23b to slacken. The parking device 1 of this embodiment has a slack removal device 50, so that even if the pallet 10 is in a hollow position and is tilted slightly backward, the rear suspension wires 23a, 23b do not slacken when the pallet 10 lands on the ground floor A.

[0061] The marks used in the above embodiment are similar to those on a ruler or tape measure, and are lines marked in millimeters or centimeters, but the present invention is not limited to this configuration and may be marks such as black circles. Furthermore, the marks on the rear hanging wires 23a, 23b may be ones that encourage the wires 23a, 23b to perform slack removal work or indicate the time to replace the wires 23a, 23b. For example, when the marks on the rear hanging wires 23a, 23b reach the position of the support plate portion 55, this indicates that it is time to perform slack removal work on the wires 23a, 23b.

[0062] In the embodiment described above, the inner diameter of the collar member 52 is larger than the outer diameter of the compression coil spring (elastic body) 51, and the compression coil spring 51 is inserted into the space 67 of the collar member 52. However, conversely, the inner diameter of the compression coil spring (elastic body) 51 may be made larger than the outer diameter of the collar member 52, and the collar member 52 may be inserted into the central space 68 of the compression coil spring 51.

[0063] The parking apparatus 1 described above has a structure with five above-ground floors and three spaces on each floor. That is, the parking apparatus 1 described above has a three-row, five-floor structure, but the number of floors and the number of rows are optional. For example, the present invention can be applied to a single-row, two-storey parking device. Furthermore, the present invention can be applied to a parking facility having a basement floor. In a parking system having a basement floor, known as an underground pit type, when the pallet 10 is lowered to the basement floor, the wires 22a, 22b, 23a, and 23b may reach below the ground surface. That is, the wires 22a, 22b, 23a, and 23b may be disposed underground. [Explanation of symbols]

[0064] 1 Parking equipment 2 Base frame 3 Parking Unit 5 Transverse Frame 10 Pallet (Placement table) 22a, 22b Front suspension wire (rod member) 23a, 23b: Suspension wire (rod member) 45 Vehicle Placement Area 50, 80 Slack removal device 51 Compression coil spring (elastic member) 52 Color parts (regulating parts) 53 Main body (cable connection) 55 Support plate part 57 Through hole 66 Locking part 70 Wheel installation area 71 scale 100 vehicles

Claims

1. A parking device having a platform, a vehicle being loaded onto the platform and parking the vehicle in a multi-level manner, The mounting table is suspended by a cable member and moves up and down, the mounting base has a through hole, the cord member has a locking portion, the cord member passes through the through hole and is located below the through hole, A parking device characterized in that when the rope member is pulled up, the engaging portion directly or indirectly contacts the through hole to raise the platform.

2. A parking device having a platform, a vehicle being loaded onto the platform and parking the vehicle in a multi-level manner, The mounting table is suspended by a cable member and moves up and down, The mounting base has a through hole, and the wire member is provided with a locking portion, the elastic body and a restricting member that restricts the overall length of the elastic body, the restricting member being in direct or indirect contact with the locking portion and suspended from the cable member; The elastic body is disposed between the through hole and the locking portion, and the rope member is biased downward by the elastic body. A parking device characterized in that when the cable member is pulled up, the elastic body is compressed and shrinks, and the regulating member moves to come into direct or indirect contact with the through hole, thereby raising the platform.

3. the restricting member is a collar member, the elastic body is a spring, the spring being a compression coil spring having a space at its center, The natural length of the spring is longer than that of the collar member; The spring is disposed in the collar member, and the cable member passes through the space of the spring and has the locking portion on the underside of the spring, 3. The parking device according to claim 2, wherein when the cable member is pulled up, the spring is compressed and shortened, and the collar member comes into direct or indirect contact with the through hole to raise the platform.

4. A parking device having a platform, a vehicle being loaded onto the platform and parking the vehicle in a multi-level manner, The mounting table is suspended by a cable member and moves up and down, The mounting table has a through hole, The collar member and the spring are compression coil springs having a space in the center. The natural length of the spring is longer than that of the collar member; the spring is disposed in the collar member, the cable member passes through a space in the spring and has the locking portion below the spring, and the collar member is in direct or indirect contact with the locking portion and suspended from the cable member; A parking device characterized in that when the cable member is pulled up, the spring is compressed and shortened, and the collar member moves to come into direct or indirect contact with the through hole, thereby raising the platform.

5. A parking device as described in any one of claims 1 to 4, characterized in that the loading platform has a vehicle placement area for loading a vehicle, and the through hole is located in an area that fits within the width direction of the vehicle placement area and is located in a position that protrudes from the vehicle placement area.

6. The platform has a wheel installation area where the wheels of the vehicle are placed on the ground, The mounting base has a cable connection portion, A parking device as described in any one of claims 1 to 4, characterized in that the cable connection portion has a support plate with the through hole formed therein, and the support plate is provided at a position higher than the wheel placement area.

7. 5. A parking device according to claim 1, wherein the rope member is marked.

8. A base frame constituting a floor on which a vehicle is placed, and a traverse frame installed on a predetermined floor of the base frame and traversing the predetermined floor, 5. The parking device according to claim 1, wherein the platform is suspended from the lateral frame by a rope member and is raised and lowered.

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