Parking pallets and mechanical parking systems

Abstract

To provide a pallet capable of obtaining an anti-skid effect for various vehicles using a parking lot.SOLUTION: The pallet of the parking lot is provided with circular embossments at a pitch of 20 mm or more and 100 mm or less at least on a surface with which a tire of the vehicle comes into contact. When the parking lot is a mechanical parking lot in which vehicles are parked in upper and lower levels, the mechanical parking lot includes an elevating pallet that moves up and down between the lower and upper levels. The lifting pallet is provided with circular embossments at a pitch of 20 mm or more and 100 mm or less at least on a surface to be brought into contact with a tire of a vehicle.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present disclosure relates to a parking pallet and a mechanical parking lot. [Background Art]

[0002] Patent Document 1 discloses a plate (pallet) provided in a multistory parking lot. The surface of the plate is provided with uneven embossing for anti-slip purposes. [Prior Art Document] [Patent Document]

[0003] [Patent Document 1] Japanese Unexamined Patent Publication No. 09-302971 [Summary of the Invention] [Problem to be Solved by the Invention]

[0004] Generally, a pallet embossed as an anti-slip measure is a checkered steel plate. The checkered steel plate is provided with protrusions (embossments) of the same size over the entire surface. However, when the surface of the pallet made of checkered steel plate is wet, depending on the condition of the tires mounted on the vehicle, the anti-slip effect may not be obtained.

[0005] One object of the present disclosure is to provide a pallet capable of obtaining an anti-slip effect for various vehicles using a parking lot. [Means for Solving the Problem]

[0006] A first aspect of the present disclosure relates to a parking pallet provided in a parking lot. In the parking pallet, circular embossments are provided at a pitch of 20 mm or more and 100 mm or less on at least the surface that the vehicle tires come into contact with.

[0007] A second aspect of this disclosure relates to a mechanical parking system for parking vehicles on upper and lower levels. The mechanical parking system includes a lifting pallet that moves up and down between the lower and upper levels. The lifting pallet has circular embossing at a pitch of 20 mm to 100 mm on at least the surface in contact with the vehicle's tires. [Effects of the Invention]

[0008] According to this disclosure, the parking lot pallet is provided with circular embossing at a pitch of 20 mm to 100 mm on at least the surface that comes into contact with the vehicle's tires. This increases the frictional force acting on the contact surface between the vehicle's tires and the pallet surface, making it less likely for the vehicle to slip. Therefore, it is possible to realize a pallet that can provide an anti-slip effect for various types of vehicles using the parking lot. [Brief explanation of the drawing]

[0009] [Figure 1] This is an explanatory diagram showing an example of the configuration of a parking lot according to Embodiment 1. [Figure 2] This is an explanatory diagram showing an example of the configuration of a parking lot according to Embodiment 1. [Figure 3] This is an explanatory diagram showing an example of the pallet configuration according to Embodiment 1. [Figure 4] This is an explanatory diagram showing an example of the evaluation results of the anti-slip effect of the pallet according to Embodiment 1. [Figure 5] This is an explanatory diagram showing an example of the configuration of a parking lot according to Embodiment 2. [Modes for carrying out the invention]

[0010] The parking pallet and mechanical parking system according to the embodiments of this disclosure will be described with reference to the attached drawings. Furthermore, elements common to each figure are denoted by the same reference numerals, and redundant explanations are omitted.

[0011] 1. Embodiment 1 1-1. Example of a parking lot Figures 1 and 2 are explanatory diagrams showing an example configuration of parking lot 1 according to Embodiment 1. Parking lot 1 is, for example, a mechanical parking system. The mechanical parking system is, for example, a two-tiered mechanical parking system capable of parking vehicles 2 on each of the two levels (upper and lower levels), as shown in Figure 1. The two-tiered mechanical parking system may be configured as a ground-level two-tiered mechanical parking system installed on the ground, or as a pit-type two-tiered mechanical parking system in which the lower level of the two levels can be stored underground. The mechanical parking system may also be a three-tiered mechanical parking system. In this case, the three-tiered mechanical parking system is configured as a pit-type three-tiered mechanical parking system in which the lower two levels of the three levels can be stored underground. Thus, when parking lot 1 is a pit-type mechanical parking system, parking lot 1 may be configured as a multi-tiered mechanical parking system.

[0012] As another example, parking lot 1 may be a surface parking lot rather than a mechanical parking lot.

[0013] Parking lot 1 includes a pallet 10, as shown in Figure 2. The pallet 10 is a steel plate for placing and storing vehicles 2. For example, if parking lot 1 is a two-tiered mechanical parking system, the pallet 10 is installed on the upper level of the two levels. As another example, if parking lot 1 is a pit-type mechanical parking system, the pallet 10 is installed on all levels. Pallets 10 installed in mechanical parking systems are also called lifting pallets 10. The lifting pallet 10 is attached to a support column 5, as shown in Figure 2(A), and moves up and down based on the operation of a drive device (not shown). For example, if parking lot 1 is a two-tiered mechanical parking system, the lifting pallet 10 moves up and down between the upper and lower levels according to the operation of the drive device.

[0014] If parking lot 1 is a surface parking lot, pallet 10 is fixed to the ground as shown in Figure 2(B). Details of the configuration example of pallet 10 will be described later.

[0015] 1-2. Example of Palette Configuration 1-2-1. Overview Consider a case where the parking lot 1 is installed outdoors. For example, when the surface of the pallet 10 is wet due to rain or the like, the vehicle 2 moving on the pallet 10 becomes more slippery than when the surface of the pallet 10 is dry. Specifically, when the surface of the pallet 10 is dry, the frictional force acting on the contact surface between the tires of the vehicle 2 and the surface of the pallet 10 increases, and when the surface of the pallet 10 is wet, the frictional force acting on the contact surface between the tires of the vehicle 2 and the surface of the pallet 10 decreases. When the frictional force acting on the contact surface between the tires of the vehicle 2 and the surface of the pallet 10 is large, the vehicle 2 is less likely to slip. When the frictional force acting on the contact surface between the tires of the vehicle 2 and the surface of the pallet 10 is small, the vehicle 2 is more likely to slip.

[0016] Further, there are various vehicles 2 that use the parking lot 1, and the performance of tires mounted on the vehicles 2 also varies. For example, grip performance is an index indicating tire performance. Generally, when a tire with high grip performance is mounted on the vehicle 2, the vehicle 2 is less likely to slip even if the surface of the pallet 10 is wet. However, when the tire is in a deteriorated state, the grip performance decreases, and the vehicle 2 becomes more likely to slip.

[0017] As described above, it is desirable that the parking lot 1 is provided with the pallet 10 capable of obtaining an anti-slip effect for various vehicles 2 using the parking lot 1. Hereinafter, details of the pallet 10 according to the present embodiment will be described.

[0018] 1-2-2. Specific Example FIG. 3 is an explanatory diagram showing a configuration example of the pallet 10 according to the first embodiment. In a top view, circular embossments are provided on the surface of the pallet 10. The pallet 10 may have a configuration in which circular embossments are provided over the entire surface of the pallet 10, or may have a configuration in which the circular embossments consist of two sets (a first set FS and a second set SS) as shown in FIG. 3.

[0019] For example, it is not necessary to provide circular embossments on the surface of the pallet 10 that is not in contact with the tires of the vehicle 2. In this case, the pallet 10 may be configured such that the circular embossments consist of two sets (a first set FS and a second set SS). That is, no circular embossment is provided between the first set FS and the second set SS. This makes it possible to shorten the time required for processing embossments, and achieve cost reduction of the pallet 10.

[0020] Furthermore, the circular embossments are preferably processed to have a diameter in a range of 8 mm or more and 20 mm or less, and a height in a range of 2 mm or more and 5 mm or less. In one particularly preferred example, the circular embossments are processed to have a diameter of 11 mm and a height of 3.3 mm. The interval (pitch) between the circular embossments is preferably processed to be in a range of 20 mm or more and 100 mm or less. In one particularly preferred example, the interval between the circular embossments is processed to be 20 mm. However, the diameter, height, pitch and number of the circular embossments may be arbitrarily determined when designing and processing the pallet 10. For example, in a case where circular embossments are provided at a narrow pitch on the surface of the pallet 10 that is in contact with the tires of the vehicle 2, the pitch of the circular embossments may be further narrowed in locations where the vehicle 2 is prone to slipping.

[0021] As described above, the pallet 10 is provided with circular embossments at a narrow pitch of 20 mm or more and 100 mm or less on at least the surface of the pallet 10 that is in contact with the tires of the vehicle 2. By freely arranging the circular embossments on the pallet 10 in consideration of locations where the vehicle 2 is prone to slipping, the frictional force acting on the contact surface between the tires of the vehicle 2 and the surface of the pallet 10 is increased, making the vehicle 2 less prone to slipping. Accordingly, it is possible to realize the pallet 10 that can obtain an anti-slip effect for various vehicles 2 that use the parking lot 1.

[0022] Figure 4 is an explanatory diagram showing an example of the evaluation results of the anti-slip effect of the pallet 10 according to Embodiment 1. Specifically, Figure 4(A) shows an example of the calculation results of the friction coefficient of the test pallet using a test tire. The test pallet includes a pallet 10 with circular embossing and a checkered steel plate pallet. The road surface conditions include "dry condition" and "wet condition". The test tire is set, for example, to have a load of 4030 [N]. In the example shown in Figure 4(A), the calculation results of the friction coefficient of the test pallet (pallet 10, checkered steel plate pallet) are shown for both the "dry condition" and the "wet condition" of the road surface. In addition, in the example shown in Figure 4(A), the number of verification tests is set to three, and the calculation results of the friction coefficient of the test pallet for each test are shown. Figures 4(B) and 4(C) show examples of measurement results of longitudinal force and load of the test tire. Specifically, Figure 4(B) shows an example of the measurement results for the longitudinal force and load of the test tire when the test pallet is "pallet 10", the road surface condition is "wet", and the number of test runs is "1". Figure 4(C) shows an example of the measurement results for the longitudinal force and load of the test tire when the test pallet is "checkered steel plate pallet", the road surface condition is "wet", and the number of test runs is "1".

[0023] The coefficient of friction of the test pallet is calculated by dividing the longitudinal force of the test tire by the load of the test tire. The coefficient of friction of the test pallet shown in Figure 4(A) is the average value of the coefficient of friction in a predetermined section (a section from a distance of 35 millimeters to a distance of 55 millimeters) in which the test tire is slipping. According to Figure 4(A), the coefficient of friction of pallet 10 is greater than that of checkered steel plate pallet, regardless of whether the road surface is "dry" or "wet". Therefore, pallet 10 of this disclosure can obtain a better anti-slip effect than checkered steel plate pallet.

[0024] Let's consider the shape of the pallet 10. If parking lot 1 is a flat parking lot, the pallet 10 has a flat shape. On the other hand, if parking lot 1 is a mechanical parking lot, the pallet 10 (lifting pallet 10) may have a shape with an inclined entrance / exit. In this case, the lifting pallet 10 has an inclined entrance / exit section 10A and a mounting top plate section 10B, as shown in Figure 3. The lifting pallet 10 is also provided with a first stopper 6 to prevent a vehicle 2 that has stopped during lifting from moving forward, and a second stopper 14 to prevent a vehicle 2 from entering while the vehicle 2 is moving, as shown in Figure 3.

[0025] The boarding / alighting inclined section 10A is shaped to allow the vehicle 2 to board and alight onto the mounting top section 10B, and the mounting top section 10B is shaped to be flat on which the vehicle 2 can be placed. In this case, when the tires of the vehicle 2 are at the position of the boarding / alighting inclined section 10A, the tires are more likely to slip than when they are at the position of the mounting top section 10B. For this reason, the density of the embossing is higher on the boarding / alighting inclined section 10A than on the mounting top section 10B. This provides an anti-slip effect when the vehicle 2 boards or alights from the pallet 10 (boarding / alighting inclined section 10A).

[0026] Furthermore, the distance between the first set FS and the second set SS, which are collections of circular embossing, is narrower on the boarding / alighting inclined section 10A than on the mounting top plate section 10B. As a result, no matter which direction the vehicle 2 approaches from, the tires of the vehicle 2 will always make contact with the circular embossing.

[0027] 2. Embodiment 2 Figure 5 is an explanatory diagram showing an example configuration of parking lot 1 according to Embodiment 2. If parking lot 1 is a two-tiered mechanical parking lot above ground, parking lot 1 may further include an entry / exit plate 11 and a stopper plate 12.

[0028] The boarding / alighting plate 11 is installed at the entrance / exit of the lower level of the two-tiered vehicle. The boarding / alighting plate 11 is shaped to allow boarding and alighting of the vehicle 2 to the lower level. The boarding / alighting plate 11 is attached to the upper part of the base plate 13, which is fixed to the ground using fastening components 20 (e.g., bolts).

[0029] The stopper plate 12 is installed at the back of the lower of the two upper and lower levels. The stopper plate 12 is equipped with a third stopper 15 to prevent the vehicle 2 from entering. The stopper plate 12 is attached to the upper part of the base plate 13, which is fixed to the ground, using fastening components 30 (e.g., bolts). The third stopper 15 is attached to the upper part of the stopper plate 12 using fastening components 30.

[0030] The boarding / alighting plate 11 and the stopper plate 12 are provided with circular embossing on at least the surface that comes into contact with the tires of the vehicle 2. This ensures that even if the parking lot 1 is a two-tiered mechanical parking lot and the vehicle 2 is parked on the lower level, the boarding / alighting plate 11 and the stopper plate 12 provide an anti-slip effect when the vehicle 2 gets on or off them.

[0031] Furthermore, as shown in Figure 5, the boarding / alighting plate 11 and the stopper plate 12 may have a sloped portion at the boarding / alighting entrance and a flat portion at the other parts. In this case, the density of the embossing is higher at the boarding / alighting entrance than at the other parts. This provides a better anti-slip effect when the vehicle 2 gets on or off the boarding / alighting plate 11 and the stopper plate 12. [Explanation of Symbols]

[0032] 1...Parking lot, 2...Vehicle, 5...Support column, 6...First stopper, 10...Pallet, 10A...Entry / exit ramp, 10B...Top plate, 11...Entry / exit plate, 12...Stopper plate, 13...Base plate, 14...Second stopper, 15...Third stopper, 20...Fastening component, 30...Fastening component

Claims

1. It is a parking lot pallet, It has a mounting section for placing the vehicle, which is composed of a flat shape without grooves, At least on the surface of the aforementioned mounting area where the vehicle's tires make contact, there are multiple rows of circular embossing arranged in a line along a direction perpendicular to a reference direction set in correspondence with the front-rear direction of the vehicle placed on the parking lot pallet, The aforementioned circular embossing is provided at a pitch of 20 mm to 100 mm. The spacing between circular embossed areas within the aforementioned row of circular embossed areas is shorter than the spacing between adjacent rows of circular embossed areas. A parking lot pallet characterized by the following features.

2. A parking pallet according to claim 1, The aforementioned parking pallet is a pallet installed in a surface parking lot, or a pallet installed on the ground in a mechanical parking lot where vehicles can be parked on upper and lower levels. The pallet provided in the aforementioned mechanical parking system is a lifting pallet that moves up and down between the lower level and the upper level. A parking lot pallet characterized by the following features.

3. A parking pallet according to claim 2, The aforementioned lifting pallet has a mounting top plate on which a vehicle is placed, and an access slope that allows a vehicle to get on and off the aforementioned mounting top plate. The aforementioned circular embossing is more densely arranged in the inclined section for boarding and alighting than in the top plate section described above. A parking lot pallet characterized by the following features.

4. A mechanical parking system that parks vehicles on upper and lower levels, It is equipped with a lifting pallet that moves up and down between the lower level and the upper level, The aforementioned lifting pallet is A mounting plate section, which has a flat shape without grooves, on which the vehicle is placed, It has an inclined boarding / alighting section that allows passengers to get on and off the vehicle's front-facing top plate, At least on the surface of the aforementioned top plate portion in contact with the vehicle's tires, there are multiple rows of circular embossing arranged in a line along a direction perpendicular to a reference direction set corresponding to the front-rear direction of the vehicle placed on the lifting pallet, The aforementioned circular embossing is provided at a pitch of 20 mm to 100 mm. The spacing between circular embossed areas within the aforementioned row of circular embossed areas is shorter than the spacing between adjacent rows of circular embossed areas. A mechanical parking system characterized by the following features.

5. A mechanical parking system according to claim 4, The aforementioned circular embossing is more densely arranged in the inclined section for boarding and alighting than in the top plate section described above. A mechanical parking system characterized by the following features.

6. A mechanical parking system according to claim 4, A boarding / alighting plate is provided at the lower entrance / exit, which allows vehicles to board and alight from the lower level, A stopper plate is provided at the back of the lower section, Equipped with, The boarding / alighting plate and the stopper plate are provided with circular embossing at a pitch of 20 mm to 100 mm on at least the surface that comes into contact with the vehicle's tires. A mechanical parking system characterized by the following features.

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