JP2002129770A - Driving force transmitting mechanism for blocking plate of locking type parking system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a safety mechanism which can prevent the blocking plate of a locking type parking system from biting foreign matters and from giving damage, etc., to a human body when the blocking plate ascends and descends. SOLUTION: When the rod 3a of a hydraulic cylinder extends in the direction X1, a driving force transmitting mechanism 4 rotates in the direction Y1 around a rotating shaft 2 and the blocking plate 1 fixed to the shaft 2 also ascends in the direction Y1. In this case, when a force P1 is applied to the plate 1 due to foreign matters, etc., and the ascend of the plate 1 is stopped, the rotating shaft 2 stops rotations together with a driven member 6. On the other hand, a main driving member 5 is made to be rotated further in the direction Y1 against the elasticity of a coil spring 9 by means of the rod 3a and a limit switch actuating piece 12 integrated with the driven member 6 comes into contact with a limit switch 11 due to the actuation of the driven member 6 and main driving member 5 and turns on the switch 11 to stop the operation of the hydraulic cylinder. When the blocking plate 1 is caught by foreign matters while the plate 1 descends, the members 5 and 6 work to compress a coil spring 8 and the limit switch actuating piece 12 turns on another limit switch 10 to stop the hydraulic cylinder.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a parking device, and more particularly to a mechanism for transmitting a driving force for raising and lowering a stop plate in a lock-type parking device that locks a parked vehicle by a lift plate.

[0002]

2. Description of the Related Art In many toll parking lots where unmanned management is possible,
Locking parking devices are used. FIG. 7 shows an example of the configuration of this lock type parking device. First, the configuration (A) is such that when the vehicle C enters the parking area and stops at a predetermined position, this is detected by a sensor (not shown) and the stop plate 50 is detected.
When the vehicle is locked by erecting the vehicle, and the vehicle is to leave, by paying a fee corresponding to a predetermined parking time, the stopping plate 50 descends and the vehicle can leave.

FIG. 7B shows another configuration of a lock type parking device in which a stop plate (indicated by reference numeral 51) stands upright in front of a vehicle C parked in a parking area. In the lock-type parking device having this configuration, the stop plate 51 stands up to the uppermost portion irrespective of the height of the parked vehicle, so that it is difficult to get over the stand-up stop plate and leave the vehicle illegally. By the way, in the case of the configuration (A), if the vehicle has a low vehicle height, the standing height of the stopping plate 50 also becomes low, and the vehicle can relatively easily exit illegally. In the configuration of (B), it is more difficult than the configuration of (A) in terms of unauthorized exit, etc., so the configuration of (B) has increased considerably in recent years.

[0004]

FIG. 7 (A),
In the configuration shown in (B), various mechanisms such as a mechanism by operating a hydraulic cylinder, a mechanism combining a reduction gear and moving up and down by a rotating means such as an electric motor, and the like, can be considered as a mechanism for moving the stopping plate 50 or 51 up and down. However, irrespective of such a driving mechanism, any of the configurations shown in (A) and (B) has the following problems.

First, in the configuration shown in FIG. 1B, the stopping plate 51 is configured to stand outside the parking range of the parked vehicle C. Therefore, the mechanism for stopping the standing operation of the stopping plate 51 before reaching the complete standing state is as follows. Not provided. However, when the driver determines that the parking is completed, for example, when the driver turns the vehicle back in the parking area, and the stopping plate 51 starts the standing operation at the lower part of the vehicle in the unparked state, the vehicle or the stopping plate 51 There is a possibility that the driving mechanism of the first motor may be seriously damaged. In addition, when a part of the passenger gets off the parking picture, the stop plate 5 before standing up is displayed.
If the luggage or the like is mistakenly dropped on the luggage, the luggage may be repeated due to the upright operation of the upright plate.

In the configuration (A), the stop plate 51 comes into contact with the bottom surface of the vehicle, so that the standing operation of the stop plate 51 contacting the bottom surface of the vehicle is stopped by using a sensor such as a torque sensor. Therefore, the above problem can be avoided for the time being.

However, in the above configurations (A) and (B), no countermeasure is actually taken for the lowering operation of the stop plate 50 or 51. That is, when the stop plates 50 and 51 are lowered, there is no problem such as contact with the vehicle and damage due to the vehicle in relation to the parked vehicle. Therefore, no special consideration is given to the lowering mechanism.

For this reason, if all the feet are under the descending stop plate when the stop plate 50 or 51 is lowered, the stop plates 50 and 51 stop the lowering operation even if they come into contact with the human feet. Not doing so may cause serious injury to human feet.
In addition to such human damage, for example, if there is a foreign substance such as a stone under the descending stop plates 50, 51, the stop plates 50, 5
1 or a mechanism for driving these stop plates may be damaged.

[0009]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and is directed to a driving mechanism of a parking device having a stopping plate which moves up and down at a position other than a lower portion of a parked vehicle or a parking portion of the parked vehicle. In both cases of raising and lowering the stop plate, the stop operation of the lock type parking device configured to stop the lowering operation or the raising operation by contact with foreign matter so as not to cause human or physical damage. It relates to a force transmission mechanism.

That is, the present invention relates to a driving force transmitting mechanism interposed between a rotating shaft for driving the stopping plate up and down and a driving mechanism for rotating the rotating shaft. A mechanism is provided, which is configured to regulate the operation of the differential mechanism by always using the elastic force of the elastic body, and when the load on the restraint plate becomes a certain value or more, the differential is acted against the elastic force. This is a braking plate driving force transmission mechanism of a lock type parking device configured to operate the mechanism and stop the operation of the driving mechanism by this differential to stop the lowering or raising operation of the braking plate.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION A stop plate configured to move up and down at the bottom of a parked vehicle or near a parked vehicle has its base fixed to a rotating shaft, and the rotating shaft is rotated by the rotating operation of the rotating shaft. It is configured to move up and down by rotating about the center.

A drive unit for rotating the rotating shaft is constituted, for example, as a hydraulic cylinder, and a driving force transmission mechanism is interposed between the hydraulic cylinder and the rotating shaft. This driving force transmission mechanism has a main driving member that directly receives the driving force of the driving unit, and a driven member fixed to the rotation shaft side, and the main driving member and the driven member share a rotation axis and a rotation axis. In addition, it is configured so as to be mutually differential with respect to the rotation axis.

An elastic body such as a coil spring is arranged between the main driving member and the driven member so as to regulate the differential between them, so that the main driving member and the driven member always differentially and integrally drive. The driving force of the unit is transmitted to the rotating shaft via the driving force transmitting mechanism, and the stopping plate fixed to the rotating shaft performs the elevating operation by the rotation of the rotating shaft.

Next, one of the driving member and the driven member is provided with a limit switch, and the other is provided with a switch piece for operating the limit switch. If the stop plate comes in contact with any foreign matter during its ascent or descent, and its operation is regulated, the main driving member and the driven member are differentially moved against the elasticity of the elastic member disposed therebetween. As a result of this differential, the limit switch comes into contact with the operating piece that operates the limit switch, and the operation of the drive unit is stopped.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. First, an outline of a configuration of a stop plate driving mechanism using the lock type parking device shown in FIGS. 1 and 2 will be described.

Reference numeral 1 denotes a stop plate, the base of which is fixed to the rotating shaft 2, which is configured to move up and down by a rotating operation about the rotating shaft 2. The illustrated parking device is configured to perform a vertical movement at a position close to the parked vehicle C shown in FIG. Reference numeral 3 denotes a hydraulic cylinder as a drive unit that moves the stopping plate 1 up and down. Reference numeral 4 denotes a driving force transmission mechanism according to the present invention, which is a hydraulic cylinder 3 (directly a cylinder rod 3 of the hydraulic cylinder 3).
a) and the rotation shaft 2, the operation of the hydraulic cylinder 3 is transmitted to the rotation shaft 2, and the stop plate 1 is moved up and down.

That is, the cylinder rod 3 of the hydraulic cylinder 3
When a extends in the X1 direction, the driving force transmission mechanism 4 rotates in the Y1 direction together with the drive shaft 2 around the axis of the rotation shaft 2. As a result, the stop plate 1 fixed to the drive shaft 2 also rotates upward in the Y1 direction. Conversely, when the cylinder rod 3a of the hydraulic cylinder 3 is pulled back in the X2 direction, the turning shaft 2 turns in the Y2 direction via the driving force transmission mechanism 4, and the stopping plate 1 performs a lowering operation. The above-described mechanisms are housed in a casing CS, and most of the casing CS is buried and fixed on the ground as shown in FIG.

Next, mainly referring to FIG.
Will be described in detail. In the figure, reference numeral 5 denotes a driving member. As shown, the driving member 5 includes two members indicated by reference numerals 5A and 5B. Reference numeral 6 denotes a driven member, which is arranged between the pair of driven members 5A and 5B. The driving members 5A and 5B and the driven member 6 are arranged so as to pass through the rotating shaft 2. The driving members 5A and 5B are integrated by a rod mounting pin inserted through the pin insertion holes 5Aa and 5Ba, and are configured to be freely rotatable with respect to the rotation shaft 2.

On the other hand, the driven member 6 located between these driving members 5A and 5B is fixed to the rotation shaft 2 unlike the driving members 5A and 5B, and is configured to rotate together with the rotation shaft 2. I have. That is, the driven member 6 and the pair of driven members 5A and 5B are configured to be freely rotatable (differential) with respect to the rotating shaft 2.

Reference numerals 8 and 9 denote main driving member 5 and driven member 6 respectively.
The coil springs 8 and 9 are arranged so that their central axes are substantially orthogonal to each other, so that the resilient force of both coils is centered on the rotation shaft 2. They are arranged to face each other in the rotation direction. Thus, the main driving member 5 and the driven member 6 are restricted from being freely displaced in different directions by the resilient forces of the coil springs 8 and 9. That is, the main driving member 5 (5A, 5B) and the driven member 6, which are originally differential, function as integral parts by the coil springs 8 and 9.

Reference numerals 10 and 11 denote limit switches. In the configuration shown in FIG.
Reference numeral 11 is attached to the side surface on the 5B side of the pair of driving members 5. Next, reference numeral 12 denotes a limit switch operating piece, the base of which is mounted on an operating piece mounting seat 13a of a free ring 13 which freely rotates with respect to the rotating shaft 2. The limit switch operating piece 12 is connected to the driven member 6 by a connection pin 14 through an opening 5Bb formed in the main driving member 5B. When no load is applied to any of the coil springs 8 and 9 as shown in FIG.
, And 11 so that none of the switches is turned ON.

That is, the driving force transmitting mechanism 4 shown in the figure is driven by the coil springs 9 and 10 to drive the main driving member 5, the driven member 6, and the driving member 5.
The limit switches 10, 11 and the limit switch actuating piece 12 are fixedly arranged at predetermined positions, and the entire driving force transmission mechanism 4 is configured as one member. As a result, the driving force of the hydraulic cylinder 3 acts as a driving force transmitting mechanism for moving the stopping plate 1 up and down via the rotating shaft 2 as described above.

FIG. 4 shows a state in which the stopping plate 1 is moved up and down via the driving force transmission mechanism 4. Figure (A) shows the stop plate 1
(B) shows a state in which the stop plate 1 is in the intermediate position. When the cylinder rod 3a is operated in the X2 direction, the stop plate 1 descends in the Y2 direction, and conversely, moves in the X1 direction. When activated, the stop plate 1 rises in the Y1 direction.

FIG. 4C shows a state in which the stop plate 1 is at the lowest position. When the cylinder rod 3a is operated in the X1 direction, the stop plate 1 is raised in the Y1 direction. These (A)
(C) shows the operating state of the stop plate 1 via the driving force transmission mechanism 4 in a state where no load is applied to the stop plate 1.

FIGS. 5 and 6 show the operating state of the driving force transmission mechanism 4 when a certain load is applied to the stop plate 1. FIG. First, FIG.
1 shows a state in which the stop plate 1 is raised in the Y1 direction by operating the stop plate 1 in the Y direction. In this operation, the stop plate 1
Suppose that the ascent was hindered by some obstacle during the ascent. In this case, the relative force P1 acts on the stop plate 1 so as to oppose the rise of the stop plate 1, and the rise of the stop plate 1 is prevented.

On the other hand, the driving member 5 tends to rotate in the Y1 'direction even in the above state by the driving force of the thin rod 3a. As a result, the main driving member 5 and the driven member 6, whose rotation has been prevented, are differentiated against the elastic force of the coil spring 9. As a result, the limit switch 11 on the main driving member 5B side approaches the limit switch operating piece 12 that has stopped rotating together with the driven member 6, and the limit switch 11 is turned on by the limit switch operating piece 12, so that the hydraulic cylinder 3 operates. To stop. As a result, the operation of the entire mechanism stops, and the stop plate 1 that has come into contact with the obstacle stops operating at a predetermined position, so that neither the obstacle nor its own operating mechanism is damaged.

In the case where the stop plate 1 is arranged at the bottom of the parked vehicle, this mechanism not only serves as a safety mechanism but also stops the upward movement when the stop plate 1 comes into contact with the bottom of the parked vehicle. It can also be used as a mechanism for performing.

FIG. 6 shows a case where the stop plate 1 is lowered. The lowering of the stop plate 1 is an operation opposite to that of FIG. That is, by operating the cylinder rod 3a in the X2 direction, the stop plate 1 is lowered in the Y2 direction.
In this operation, if the lowering of the stop plate 1 is obstructed by any obstacle during the lowering of the stop plate 1, the relative force P <b> 2 for preventing the lowering of the stop plate 1 is opposed to the lowering of the stop plate 1. Act on.

On the other hand, the main driving member 5 tends to rotate in the Y2 'direction even in the above-mentioned state by the driving force of the thin rod 3a, and the main driving member 5 and the driven member 6 which has been prevented from rotating have elasticity of the coil spring 8. Differential against force. As a result, the limit switch 1 on the main driving member 5B side corresponds to the limit switch operating piece 12 that has stopped rotating together with the driven member 6.
0 approaches, the limit switch 10 is turned on by the limit switch operating piece 12, and the X of the hydraulic cylinder 3
Stop operation in two directions. The lowering of the stopping plate 1 can particularly prevent a person's feet or the like from being caught by the stopping plate 1 being lowered. Thus, from the viewpoint of preventing human body damage,
For example, consideration can be given to setting the resilient force of the coil springs 8 and 9 to be smaller and stopping the lowering operation of the stop plate 1 when the stop plate 1 is lowered even if the reaction force P2 is small. In this case, it stops at the time of ascent even for the smaller reaction force P1. That is, the sensitivity of the operation of the entire apparatus can be adjusted by appropriately selecting the resilient force of the coil springs used as the coil springs 8 and 9.

Further, by adjusting the positional relationship between the limit switches 10, 11 and the limit switch operating piece 12, the operating angle between the main driving member 5 and the driven member 6 and the timing of stopping the operation of the stop plate 1 can be freely set. Can be set. Normally, the limit switch operating piece 12 which is in the neutral position, and the limit switches 10 on both sides,
The angle at which 11 turns ON (see FIG. 6) α is from 8 ° to 10 °
The degree is appropriate.

[0031]

According to the present invention, the driving force transmission mechanism transmits the driving force of the driving portion to the stopping plate, and the stopping operation is performed when a force for preventing the operation of the stopping plate is applied in a certain amount in both the ascending and descending processes. The plate stops operating. Therefore, it is possible to prevent the human body from being damaged by the operation of the stop plate, and to prevent the stop plate operating mechanism from being damaged, so that the lock-type parking device can be used safely.

Further, the present invention can be used for any of a lock type parking device in which the stop plate is located outside the parking area of the parked vehicle or a lock type parking device in which the stop plate is located at the bottom of the parked vehicle. Is a lock-type parking device located at the bottom of a parked vehicle, it can be used as it is as a stopper mechanism for stopping the operation of the stop plate in contact with the bottom of the parked vehicle in addition to the safety mechanism.

[Brief description of the drawings]

FIG. 1 is a plan view of a lock type parking device using a driving force transmission mechanism according to the present invention.

FIG. 2 is a cross-sectional view of the lock-type parking device shown in FIG.

FIG. 3 is a perspective view of a driving force transmission mechanism according to the embodiment of the present invention.

4 (A) to 4 (C) are diagrams showing a lifting / lowering operation of a stopping plate which operates via a driving force transmission mechanism.

FIG. 5 is a diagram showing an operating state of the driving force transmission mechanism in a state where a load is applied to the ascending stop plate from above.

FIG. 6 is a diagram showing an operating state of the driving force transmission mechanism in a state where a load is applied to the descending stop plate from below.

FIGS. 7A and 7B are diagrams showing an example of using a lock-type parking device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Stop plate 2 Rotating shaft 3 Hydraulic cylinder 3a Cylinder rod 4 Driving force transmission mechanism 5 Main driving member 6 Follower member 8, 9 Coil spring 10, 11 Limit switch 12 Limit switch operating piece 13 Free ring 13a Limit switch operating piece mounting seat

Claims (8)

[Claims] 1. A locked parking device configured to lock and release a locked vehicle by lifting and lowering a stop plate near or at the bottom of the parked vehicle. A driven member fixed to the rotating shaft to be driven, and a main driving member connected to the driving mechanism. The driven member and the driving member are provided so as to be mutually differential with respect to the rotating shaft. An elastic body is interposed between the two members so that the two members are integrally formed so that the differential is regulated, and both members stop the operation of the drive mechanism by the differential against the elastic body. Locking means for driving the driving mechanism, wherein the driving force of the driving mechanism is transmitted to the rotating shaft via the driving force transmission mechanism configured as described above, so that the stopping plate moves up and down. Driving the stop plate for equipment Power transmission mechanism. 2. A driven member fixed to a rotating shaft,
The driving member is constituted by a pair of members located on both sides of the driven member, and the driving member is arranged so as to freely rotate with respect to the rotation axis, and a rotation shaft is provided between the driving member and the driven member. The locking type according to claim 1, wherein the main body and the driven member are differentially regulated by the elastic members by respectively arranging the elastic members so as to restrict the rotation in different directions around the center. Driving force transmission mechanism for parking plate for parking device. 3. The drive force transmitting mechanism for a lock type parking device according to claim 1, wherein the elastic body is a coil spring. 4. The driving force transmission mechanism for a lock type parking device according to claim 3, wherein said coil springs are arranged so that their respective central axes intersect at substantially 90 °. 5. The locking plate according to claim 1, wherein the drive mechanism is a hydraulic cylinder, and a cylinder rod of the hydraulic cylinder is connected to the driving member. Driving force transmission mechanism. 6. The means for stopping the differential of the driving mechanism comprises a pair of limit switches disposed on one of the main driving member and the driven member, and a limit switch differential piece disposed on the other. 6. The lock type parking device according to claim 1, wherein the limit switch actuating piece turns on one of the limit switches when the member and the driven member are differentially driven. Plate driving force transmission mechanism. 7. The drive of the lock type parking device according to claim 6, wherein the pair of limit switches are provided on the main driving member side, and the limit switch operating piece is attached integrally with the driven member. Power transmission mechanism. 8. The limit switch actuating piece has its base mounted on a mounting seat formed on a part of a free ring that freely rotates with respect to a rotation axis, and is disposed via an opening formed on a driving member. 8. The stop plate for a lock-type parking device according to claim 7, wherein the limit switch actuating piece is formed integrally with the driven member by the connecting member, and is configured to be different from the limit switch on the driven member side. Drive force transmission mechanism.