Roller movement mechanism for car stop device

Abstract

To provide a roller advance / retract mechanism for a car stop device, capable of preventing a vehicle from exiting without the vehicle stepping on the car stop device and capable of reliably advancing and retracting a roller with a simple mechanism. A roller 2 is fixed to the side of the tip of an arm 1 at a predetermined distance from the ground, and the base end of the arm 1 is hinged to a base 3. An extension device 4 is disposed on the base 3, and a sliding contact portion 41 capable of slidingly contacting the side surface of the arm 1 is provided on the tip side of the extension device 4.

Description

[Technical field]

[0001] The present invention relates to an improvement to a car stop device in a parking lot facility, and more specifically to a roller advance / retract mechanism for a car stop device that can prevent a vehicle from exiting without the vehicle running over the car stop device, and that can reliably move the rollers forward and backward with a simple mechanism. [Background technology]

[0002] In paid parking lots such as hourly parking lots, a flap-type locking plate is known to rise after a certain time has elapsed after a vehicle has been parked, preventing the wheels from climbing over it and preventing unauthorized exit before the parking fee has been paid. However, this locking plate is merely a single steel plate, and there is a problem that vehicles with high ground clearance can forcibly climb over the locking plate. In addition, even in garages and parking lots that are not hourly, there are cases of luxury car theft.

[0003] In view of this, a vehicle stop device has been disclosed that prevents vehicles from climbing over and exiting by having idling rollers protrude from the ground and come into contact with the tires (see, for example, Patent Documents 1 and 2).

[0004] However, these conventional roller-type car stop devices are designed so that the rollers are raised and lowered from the ground to appear and disappear, and so the device is inevitably stepped on every time a vehicle enters or exits, except when exiting is being restricted. This means that unexpected loads are placed on the gears and actuators in the roller drive mechanism, and there is also the risk that the support base will deform due to the load of the vehicle, posing a high risk of failure of the device.

[0005] Furthermore, with such a device structure, if a vehicle attempts to exit illegally, the large weight of the vehicle stepping on the rollers also acts in the direction of pushing down the rollers (in the direction of retreat), making it easy for the vehicle to be broken through.

[0006] However, if one tries to increase the strength of the device, the structure of the device becomes more complex, which increases the manufacturing costs, and the weight of the device increases, which increases the installation costs. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Japanese Patent Application Publication No. 7-301020 [Patent Document 2] JP 2000-154666 A Summary of the Invention [Problem to be solved by the invention]

[0008] The present invention was made in consideration of the above-mentioned problems with conventional car stop devices, and has as its object to provide a roller advance / retract mechanism for a car stop device that can prevent a vehicle from exiting without the vehicle running over the car stop device, and that can reliably move the rollers forward and backward with a simple mechanism. [Means for solving the problem]

[0009] The means adopted by the present inventor to solve the above technical problems will be described below with reference to the accompanying drawings.

[0010] That is, the present invention provides a car stop device capable of preventing a vehicle from exiting a parking lot, A roller 2 is fixed to the side of the tip of the arm 1 at a predetermined distance from the ground, and the base end of the arm 1 is hinged to a base 3. An extension device 4 is provided on the base 3, and a sliding contact portion 41 is provided on the tip side of the extension device 4 so as to be in sliding contact with the side surface of the arm 1, When the extension device 4 is extended, the sliding contact portion 41 is caused to slide along the side surface of the tip end portion of the arm 1 from the base end portion, thereby moving the roller 2 laterally on an arcuate track, so that the roller 2 can be positioned near the outer circumferential surface of the tire T in the vehicle exit direction. When the extension device 4 is contracted, the sliding portion 41 is caused to slide from the side surface of the tip end of the arm 1 along the side surface of the base end, thereby returning the arm 1 to its initial position, thereby enabling the roller 2 to be retracted from near the outer peripheral surface of the tire T in the direction in which the vehicle exits. This technical means has resulted in the completion of a roller advance / retract mechanism for the car stop device.

[0011] In order to solve the above problems, the present invention can also employ a technical measure of providing a returning means 5 capable of biasing the arm 1 to an initial position, in addition to the above means, as necessary.

[0012] Furthermore, in order to solve the above problems, the present invention can also employ a technical measure that makes the extension device 4 extendable and retractable along the guide rail 42, in addition to the above measures, as necessary.

[0013] Furthermore, in order to solve the above problems, the present invention can also adopt a technical measure of providing a roller follower in the sliding contact portion 41 of the extension device 4, in addition to the above measures, if necessary.

[0014] Furthermore, in order to solve the above problems, the present invention can also adopt, in addition to the above means, a technical measure of arranging a support body 6 below the roller 2 for supporting the roller 2 parallel to the ground, as necessary. Effect of the Invention

[0015] In the present invention, the roller 2 is fixed to the side from the tip of the arm 1 at a predetermined distance from the ground, and the base end of the arm 1 is hinged to the base 3. The base 3 is provided with an extension device 4, and the tip side of the extension device 4 is provided with a sliding contact part 41 that can slide against the side of the arm 1. When the extension device 4 is extended, the sliding portion 41 is caused to slide along the side surface of the tip end of the arm 1 from the base end, thereby moving the roller 2 laterally on an arcuate trajectory, and the roller 2 can be positioned near the outer peripheral surface of the tire T in the vehicle exiting direction. On the other hand, when the extension device 4 is contracted, the sliding portion 41 is caused to slide along the side surface of the base end of the arm 1 from the tip end, thereby returning the arm 1 to its initial position, thereby retracting the roller 2 from near the outer peripheral surface of the tire T in the vehicle exiting direction.

[0016] Therefore, according to the roller advance / retract mechanism of the car stop device of the present invention, the roller for preventing the vehicle from exiting is structured to advance / retract sideways, so that the vehicle can be prevented from exiting without running over the car stop device.

[0017] In addition, the roller can be reliably moved forward and backward with a simple mechanism that uses linear extension and retraction, which reduces manufacturing costs. Furthermore, because the extension and retraction motion is in the longitudinal direction of the car stop device, the power source of the extension device can be arranged without protruding into the parking space to the side, and the width of the car stop device does not increase, allowing it to be stored in a space-saving manner.

[0018] Furthermore, even in the event of an unexpected load, such as during an unauthorized exit, the rollers are not forcibly retracted as only the propulsive force of the vehicle is received in the axial direction of the arm, and the device is less likely to break down and has excellent durability, making it highly valuable in industrial applications. [Brief description of the drawings]

[0019] [Figure 1] FIG. 2 is an explanatory perspective view showing a roller advancing / retracting mechanism according to an embodiment of the present invention. [Diagram 2] FIG. 4 is an explanatory top view showing a roller advancing / retracting mechanism according to the embodiment of the present invention. [Diagram 3] FIG. 4 is an explanatory top view showing a roller advancing / retracting mechanism according to the embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] An embodiment of the present invention will be described with reference to Fig. 1 to Fig. 3. In Fig. 1, reference numeral 1 denotes an arm, reference numeral 2 denotes a roller, reference numeral 3 denotes a base, reference numeral 4 denotes an extension device, reference numeral 5 denotes a return means, and reference numeral 6 denotes a support. Note that the drawings are schematic, and the thickness, length, interval ratio, and the like differ from the actual ones.

[0021] The present invention is a car stop device that can prevent vehicles from exiting a parking lot, and in constructing it, first, a roller 2 is extended from the tip of an arm 1 toward the side at a predetermined distance (at least 2 cm) from the ground and fixed. In this embodiment, a straight metal square pipe material is used as the arm 1, and the roller 2 is extended in the perpendicular direction to form an L shape. A ball bearing that rotates smoothly can be used for the roller 2, and the total length is preferably 20 cm or more.

[0022] In this embodiment, supports 6 for supporting the arm 1 and the roller 2 in parallel to the ground can be disposed below the arm 1 and below the roller 2, and can maintain a constant predetermined distance from the ground and can withstand a load when the roller 2 is stepped on. Note that in order to prevent wear of the supports 6, it is not necessary for the lower ends of the supports 6 to be in contact with the ground surface, and it is sufficient to be positioned slightly away from the ground.

[0023] The base end of the arm 1 is then hinged to a base 3. In this embodiment, the base 3 may be fixed to the ground by driving a fastener into the ground, or may be a steel plate or the like that does not move under its own weight. For the hinge connection portion 31 of the base 3, for example, a pillow type unit of a bearing can be used.

[0024] In addition, an extension device 4 is provided on the base 3. An actuator of an electric type, a magnetic type, a hydraulic type, a pneumatic type, or the like can be used for this extension device 4. In this embodiment, a ball screw type electric actuator is used, so that the motor can be driven to easily control the extension and retraction.

[0025] Furthermore, a sliding contact portion 41 capable of slidingly contacting the side surface of the arm 1 is provided on the tip side of the extension device 4. In this embodiment, a roller follower (cam follower) can be provided as a component of the sliding contact portion 41, which can facilitate operation and also reduce wear and tear to improve durability.

[0026] In this embodiment, the extension device 4 can be extended and retracted along a guide rail 42. The guide rail 42 can be in the form of a groove or a mechanical element that is in an engaging or fitting relationship.

[0027] When the telescopic device 4 extends, the sliding contact portion 41 slides from the side surface of the base end of the arm 1 along the side surface of the tip end, causing the roller 2 to move laterally on an arcuate path (on a substantially horizontal plane) and position the roller 2 near the outer circumferential surface of the tire T in the direction in which the vehicle exits (see Figures 1 and 2). In this state, even if the vehicle attempts to exit, the tire T cannot get over the idling roller 2.

[0028] On the other hand, when the extension device 4 is contracted, the sliding contact portion 41 slides along the side surface of the base end portion of the arm 1 from the side surface of the tip end portion, and the arm 1 returns to its initial position, so that the roller 2 can be withdrawn from the vicinity of the outer circumferential surface of the tire T in the vehicle exiting direction. In this state, the vehicle can enter and exit (see FIG. 3).

[0029] In this embodiment, a returning means 5 capable of biasing the arm 1 to an initial position can be provided. Various drive mechanisms and repulsive members can be used for this returning means 5, but in this embodiment, an elastic member such as a spring, a damper, a magnet, etc. can be used, and a magnet can be used without using motive energy such as a power source, and the arm 1 can be moved only by the extension and retraction operation of the extension device 4 without using motive energy such as a power source.

[0030] A sensor for detecting the entry and exit of a vehicle can be provided in a part of the car stop device, and the operation of the extension device 4 can be automated. Also, in this embodiment, only the internal structure of the car stop device is illustrated, but it is usually preferable to cover the outside of the device with a protective cover so that only the roller 2 appears from the side of the protective cover when restricting the exit of a vehicle.

[0031] In addition, the vehicle stop device of the present invention can fully exhibit its vehicle exit prevention function even when installed in a single location where the tire T of the vehicle stops, but it can also be installed in multiple locations.

[0032] The present invention is generally configured as described above, however, the present invention is in no way limited to the illustrated embodiment, and various modifications are possible within the scope of the claims. For example, the arm 1 is not limited to a metal square pipe material, and may be other material having sufficient strength.

[0033] In addition, the sliding contact portion 41 of the extension device 4 may be provided with a guide portion such as a long hole or a protrusion on the arm 1, and slide while engaging with this, and any of these are within the technical scope of the present invention. [Explanation of symbols]

[0034] 1 Arm 2. Laura 3. Foundation 31 Hinge connection part 4 Telescopic device 41 Sliding contact part 42 Guide rail 5 Regression measures 6 Support T Tire Block B

Claims

1. A vehicle stop device capable of preventing a vehicle from exiting a parking lot, A roller is fixed to the side of the tip of the arm at a predetermined distance from the ground, and the base end of the arm is hinged to a base. An extension device is provided on the base, and a sliding contact portion capable of slidingly contacting a side surface of the arm is provided on a tip side of the extension device, When the telescopic device is extended, the sliding contact portion slides along the side surface of the tip end portion of the arm from the base end portion, so that the roller moves laterally on an arcuate track, and the roller can be positioned near the outer circumferential surface of the tire in the direction of vehicle exit. when the extension device is contracted, the sliding contact portion slides along the side surface of the base end of the arm from the tip end side, thereby causing the arm to return to its initial position, thereby enabling the roller to retract from near the outer circumferential surface of the tire in the direction in which the vehicle exits.

2. 2. The roller advancement / retraction mechanism for a car stop device according to claim 1, further comprising a return means for biasing said arm to an initial position.

3. 2. The roller advancement / retraction mechanism for a car stop device according to claim 1, wherein the extension device is extendable and retractable along the guide rail.

4. 2. The roller advancement / retraction mechanism for a car stop device according to claim 1, wherein a roller follower is disposed at a sliding contact portion of said extension device.

5. 2. The roller advancement / retraction mechanism for a car stop device according to claim 1, further comprising a support member disposed below said roller for supporting said roller in parallel with the ground.

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