JP2008163723A - Parking equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide parking equipment which can prevent a breakage in a parked vehicle by making the descending motion of a swing arm surely stopped by a simple structure, when a leading end the swing arm is brought into contact with the parked vehicle. <P>SOLUTION: A rotational mechanism 10 for rotating the swing arm comprises: a crank arm 20, the one end of which is connected to a shaft of the swing arm; an actuator 22 which is pivoted on the crank arm 20, which lifts/lowers a closing member by making a telescopic motion, and which makes a load of the swing arm applied in a contraction direction; a slider 31 which can slide almost in parallel with the direction of the telescopic motion of the actuator 22 by pivoting the actuator 22; an auxiliary spring 32 for urging the slider 31 in the expansion direction of the actuator 22; and a switch 33 for stopping the motion of the actuator 22 when the slider 31 slides by a predetermined amount in the contraction direction of the actuator 22. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a parking apparatus, and more particularly to an apparatus that prevents unauthorized exit of an unsettled vehicle in a pay parking lot.

  Conventionally, in a pay parking lot, a parking apparatus that restrains a parked vehicle is used in order to prevent an unauthorized exit of an unpaid vehicle. As this type of parking apparatus, a parking device such as a flap plate is generally provided on the ground where a tire of a parked vehicle in front of a parking space is located. For example, Patent Documents 1, 2, What is disclosed in No. 3 etc. is known.

  However, in these parking apparatuses, the parked vehicle may get out of the car stop and exit, and the parked vehicle may not be completely prevented from leaving illegally. In particular, in recent years, a four-wheel drive vehicle or the like having a high vehicle height can easily get over the car stop, and a malicious user sometimes gets out of the car stop without paying the parking fee. In addition, because the car stop is at the bottom of the parked vehicle, it is not easy for the user to notice, and even if it is a good-willed user, if the car accidentally forgets to settle and tries to leave, the car stop will collide with the lower part of the vehicle. However, the vehicle may be damaged, and unforeseen damage may occur to a bona fide user. In particular, since the lower part of the vehicle is vulnerable to external impact, the vehicle is likely to be damaged. In addition, when the vehicle collides with the vehicle stop or when the vehicle goes over the vehicle stop and exits, the parked vehicle may be damaged due to the impact of the collision and the load of the vehicle.

  Therefore, the present inventor has developed a parking device described in Patent Document 4 as a solution to the above problem. This parking device has a swing arm made up of an arcuate bar-shaped member that is pivotally supported at one end by a support member on the vehicle entrance / exit side of the upper space of the parking space, and a center portion that swings. A closing member composed of a horizontal rod-like member connected to the end opposite to the shaft support end of the arm, and a hydraulic cylinder that is a drive mechanism for driving the swing arm to rotate. Is raised and lowered between a free height and a height sufficient to restrict the entry and exit of the vehicle.

JP 2001-323682 A JP 2001-336881 A JP 2001-288919 A JP 2003-247351 A

  By the way, when the swing arm having a long arm is pivoted up and down as in Patent Document 4 and lowered to a height sufficient to restrict the entry and exit of the vehicle, the measurement provided on the horizontal bar of the closing member is used. The distance between the closing member and the parked vehicle is measured by the length sensor, and when the distance reaches a predetermined threshold, the operation of the hydraulic cylinder is stopped by the control device. On the other hand, if the measuring sensor fails or the parked vehicle has an unexpected protrusion, the hydraulic cylinder closes without stopping even though the distance between the closing member and the vehicle falls below a predetermined threshold. In order to prevent the member from contacting the vehicle, a stop mechanism for the hydraulic cylinder is provided.

  However, since the hydraulic cylinder stopping mechanism provided in the parking apparatus is provided at the end of the hydraulic cylinder where a high load is applied, it needs to be firmly configured. For this reason, the slider, stopper, guide support member, and the like constituting the stop mechanism are required to have high strength, resulting in a high cost.

  Therefore, according to the present invention, in a parking device that swings a swing arm having a long arm in the vertical direction, the swing arm descending operation is surely stopped by a simple structure when the tip of the swing arm comes into contact with the parked vehicle. It is another object of the present invention to provide a parking device that can prevent the parked vehicle from being damaged.

  The parking device according to the present invention includes a closing member that is arranged to be movable up and down on the vehicle entrance / exit side of the upper space of the parking space, a support member fixed above the parking space, one end connected to the closing member, and the other end In a parking apparatus that includes a swing arm that is pivotally supported by a support member, and a rotation mechanism that rotates the swing arm, and controls the exit of the vehicle parked in the parking space, the rotation mechanism has one end Is a crank arm connected to the shaft of the swing arm, a drive mechanism that is pivotally supported by the crank arm and lifts and closes the closing member by extending and contracting, and a drive mechanism that applies the swing arm load in the contraction direction, and a drive A slider that is slidable substantially parallel to the direction of expansion and contraction of the drive mechanism by supporting the mechanism, an auxiliary spring that urges the slider in the substantially extending direction of the drive mechanism, and the slider is driven Substantially shrinkage direction of the structure is obtained by a switch for stopping the operation of the drive mechanism when a predetermined amount of sliding.

  In the parking device of the present invention, the load of the swing arm is applied to the driving mechanism in the contracting direction, and the slider is biased in the extending direction of the driving mechanism by the auxiliary spring, so that the slider can be operated regardless of the expansion / contraction operation of the driving mechanism. Is a state of sliding in the substantially extending direction of the drive mechanism. When the swing arm is lowered by causing the drive mechanism to contract, the swing arm load applied to the drive mechanism is released if the swing arm or the closing member comes into contact with the vehicle for some reason. When the drive mechanism is contracted, a force is applied to the slider in the substantially contracting direction of the drive mechanism, so that the slider slides in the approximately contracting direction of the drive mechanism against the biasing force of the auxiliary spring. When the slider is slid by a predetermined amount, the switch is actuated to stop the contraction operation of the drive mechanism. Therefore, the swing arm is not lowered any further, and the parked vehicle can be prevented from being damaged.

  In the parking apparatus of the present invention, the rotation mechanism further includes a spring that is pivotally supported by the crank arm and applies a moment to the crank arm that balances the moment around the axis of the swing arm due to the load of the swing arm and the closing member. It is desirable to be a thing.

  In the parking device of the present invention, the moment caused by the load of the closing member and the swing arm is canceled by the reaction force of the spring, so that when the closing member and the swing arm are rotated, the influence of the moment due to these loads is eliminated, and the moment is reduced. The closing member can be lifted and lowered by force between a height at which the vehicle can freely enter and exit and a height sufficient to restrict the vehicle from entering and exiting. Accordingly, it is possible to use a small output power source as the drive source of the drive mechanism.

  Here, the degree of balance with the moment about the axis of the swing arm due to the load of the swing arm and the closing member does not need to be completely balanced with the moment about the axis of the swing arm due to the load of the swing arm and the closing member. Balance means to allow. In short, it is sufficient that the closing member and the swing arm can be moved up and down with a small force while minimizing the influence of the moment caused by these loads.

  Note that “the height at which a vehicle can freely enter and exit” refers to a height that is higher than the maximum vehicle height of a vehicle that is supposed to be parked in a parking lot, and differs depending on the type of vehicle that is supposed to be parked in the parking lot. When this parking apparatus is used in a parking lot such as a general coin parking, it is set to a height higher than the maximum vehicle height of a normal passenger car or one box or minivan. In addition, “high enough to regulate the entry / exit of the vehicle” means a height that does not allow the parked vehicle to collide with the closing member when it tries to leave the parking space. If the closing member is lowered to the front of the front windshield, it is enough to prevent the vehicle from leaving, and when the parked vehicle exits, the parking lot user is alerted and the parking fee has not been settled. This is because it is possible to make things easier to notice.

  The spring is preferably a gas spring. Generally, a gas spring is provided with a piston that slides in an axial direction integrally with a rod inside a cylinder, and is filled with compressed gas inside the cylinder divided into two chambers by the piston. The two chambers communicate with each other through an orifice provided in the piston, and the area on the rod side of the piston that receives gas pressure is smaller than the opposite side, so that the rod always exhibits a reaction force in the extending direction. . Since such a gas spring has a small spring constant, an almost constant reaction force can be obtained over a wide range of strokes. Therefore, regardless of the position of the crank arm, that is, the position of the swing arm, the moment around the axis of the swing arm due to the load of the swing arm and the closing member can be canceled by a substantially constant reaction force, and the closing member can be moved up and down smoothly. It becomes possible.

  Further, the parking device of the present invention provides a line connecting the shaft support point of the crank arm of the spring and the shaft of the swing arm when the closing member is in the vicinity of the position where the horizontal distance from the shaft of the swing arm to the closing member is farthest. And the reaction force line of the spring are preferably substantially orthogonal. Thereby, the moment about the axis of the swing arm due to the load of the swing arm and the closing member is the largest when the closing member is in the vicinity of the position where the horizontal distance from the axis of the swing arm to the closing member is farthest, At this position, the line connecting the shaft fulcrum of the crank arm of the spring and the axis of the swing arm and the reaction force line of the spring are substantially orthogonal to each other, so that the axis of the swing arm due to the load of the swing arm and the closing member is caused by the reaction force of the spring. Since the moment for canceling the surrounding moment can be maximized, it is possible to balance the moment around the axis of the swing arm due to the load of the swing arm and the closing member most efficiently.

(1) The rotating mechanism is a crank arm whose one end is connected to the shaft of the swing arm, and a drive mechanism that is pivotally supported by the crank arm and moves up and down by expanding and contracting. A drive mechanism that is applied in the contraction direction, a slider that is supported by the drive mechanism and is slidable substantially parallel to the direction of expansion and contraction of the drive mechanism, an auxiliary spring that biases the slider in the extension direction of the drive mechanism, and a slider that is a drive mechanism And a switch that stops the operation of the drive mechanism when it is slid by a predetermined amount in the contracting direction, so that the contraction operation of the drive mechanism stops when the swing arm or the closing member contacts the vehicle. Therefore, the swing arm does not descend any further, and the parked vehicle can be prevented from being damaged.

(2) The rotating mechanism is further provided with a spring that is pivotally supported by the crank arm and acts on the crank arm with a moment that balances the moment around the axis of the swing arm due to the load of the swing arm and the closing member. Accordingly, it is possible to operate the closing member using a small output driving source without using an expensive hydraulic cylinder, and it is possible to provide an inexpensive parking device.

(3) Since the spring is a gas spring, regardless of the position of the crank arm, that is, the position of the swing arm, the moment around the axis of the swing arm due to the load of the swing arm and the closing member is canceled by a substantially constant reaction force. Therefore, the closing member can be lifted and lowered smoothly.

(4) When the closing member is in the vicinity of the position where the horizontal distance from the axis of the swing arm to the closing member is the farthest, the point connecting the pivot point of the crank arm of the spring and the axis of the swing arm and the reaction line of the spring Can be balanced with the moment around the axis of the swing arm due to the load of the swing arm and the closing member most efficiently, and the cost of the spring can be reduced and an inexpensive parking device can be obtained. It becomes possible.

FIG. 1 is a perspective view of a parking apparatus according to an embodiment of the present invention.
In FIG. 1, a parking lot ground 1 is paved with concrete or asphalt, and a rectangular frame-like parking frame 2 is drawn by a white line for each vehicle parked so as to surround the parking space 1a. In addition, a car stop 3 is installed on the back side of the parking space 1a (referring to the side opposite to the vehicle entrance / exit. The same applies hereinafter). And the parking apparatus 4 which concerns on embodiment of this invention is arrange | positioned at the upper part of a parking space. The parking device 4 restrains a vehicle parked in the parking space 1a and restricts the vehicle from leaving the vehicle illegally.

  The parking device 4 is fixed on a plurality of support members 5 erected in the vertical direction, a support member 6 bridged between the support members 5 in the horizontal direction, and on the support members 6 (that is, above the parking space 1a). A swing arm comprising a support member 7 and an arc-shaped bar member, one end of which is pivotally supported by the support member 7 and curved upward (that is, opposite to the side facing the parked vehicle). 8, a closing member 9 made of a horizontal bar-like member whose central part is connected to the end opposite to the shaft support end of the swing arm 8, and a turning mechanism 10 for turning the swing arm 8. ing.

  The support members 5 are erected on the left and right sides of the parking frame 2 near the front side 2 a of the parking frame 2. The support member 7 is formed so as to protrude outside the frame of the column member 6 and pivotally supports the swing arm 8 outside the frame of the column member 6. The swing arm 8 is formed in an upwardly curved arc shape, but this is not necessarily limited to the arc shape, and may be an elliptical arc shape, a U-shape, etc. as long as it is curved upward. May be. The closing member 9 is provided with rubber disk-shaped cushioning materials 9a on the left and right.

  2 is a cross-sectional view of the main part when the vicinity of the swing arm 8 of the parking apparatus 4 of FIG. 1 is viewed from the A direction, and FIG. 3 is a cross-sectional view of the main part of the vicinity of the rotation mechanism 10 of the parking apparatus 4 of FIG. 4 is a view taken in the direction of arrow B showing the main part of FIG. 3, FIG. 5 is a view showing details of the drive shaft of the swing arm 8, and (a) is a front view, (b), (c), (d). , (E), and (f) are C, D, E, F, and G arrow views of (a), respectively.

  In FIG. 2, the swing arm 8 is connected to the rotation mechanism 10 by the drive shaft 11, and is moved up and down by the rotation mechanism 10 via the drive shaft 11. As shown in FIG. 5A, the drive shaft 11 is divided into three shaft members 11 a, 11 b, 11 c each having a regular hexagonal cross section, and is connected by two couplings 12, 13. . The coupling 12 includes a flange 12a fixed to one end of the shaft member 11a and a flange 12b fixed to one end of the shaft member 11b. The coupling 13 includes a flange 13a fixed to the other end of the shaft member 11b and a flange 13b fixed to one end of the shaft member 11c. The swing arm 8 is fixed to the shaft member 11 c by the connecting member 14. The connecting member 14 is formed with an insertion hole 14a for inserting and fixing the shaft member 11c, and a fixing hole 14b for fixing the swing arm 8. The swing arm 8 is fixed to the connecting member 14 by bolts and nuts (not shown) through the fixing holes 14b.

  As shown in FIG. 5B, a regular hexagonal insertion hole 12a-0 is formed at the center of the flange 12a, and the shaft member 11a is inserted and fixed thereto. At the positions corresponding to the two opposite sides 11a-1, 11a-2 and the two vertices 11a-3, 11a-4 of the regular hexagonal section of the inserted shaft member 11a, there are connecting holes 12a-1, 12a-2, 12a-3 and 12a-4 are formed at equal intervals, that is, at intervals of 90 °. Similarly, as shown in FIG. 5C, a regular hexagonal insertion hole 12b-0 into which the shaft member 11b is inserted and fixed is formed at the center of the flange 12b. At the positions corresponding to the two opposite sides 11b-1, 11b-2 and two vertices 11b-3, 11b-4 of the regular hexagonal cross section of the shaft member 11b inserted at −0, the connecting holes 12b-1, 12b are respectively provided. -2, 12b-3, 12b-4 are formed at equal intervals, that is, at intervals of 90 °. The shaft member 11a and the shaft member 11b are respectively connected to the connecting holes 12a-1, 12a-2, 12a-3, 12a-4 and 12b-1, 12b-2, 12b-3, 12b of the flanges 12a, 12b. -4 and these connection holes are connected by bolts and nuts (not shown) constituting the connection means.

  Further, as shown in FIG. 5D, a regular hexagonal insertion hole 13a-0 into which the shaft member 11b is inserted and fixed is formed at the center of the flange 13a, and this insertion hole 13a- At the positions corresponding to the three sides 11b-1, 11b-5, 11b-6 of the regular hexagonal section of the shaft member 11b inserted into 0, the coupling holes 13a-1, 13a-2, 13a-3 are equally spaced, respectively. That is, they are formed at intervals of 120 °. Similarly, as shown in FIG. 5E, a regular hexagonal insertion hole 13b-0 into which the shaft member 11c is inserted and fixed is formed at the center of the flange 13b, and this insertion hole 13b. At the positions corresponding to the three vertices 11c-1, 11c-2, 11c-3 of the regular hexagonal cross section of the shaft member 11c inserted at −0, the connecting holes 13b-1, 13b-2, 13b-3 are respectively equal. They are formed at intervals, that is, 120 ° intervals. The shaft member 11b and the shaft member 11c are connected to each other through the connection holes 13a-1, 13a-2, 13a-3 and 13b-1, 13b-2, 13b-3 of the flanges 13a, 13b. Together with bolts and nuts (not shown) constituting the connecting means.

  As shown in FIG. 5, four pairs of coupling holes 12a-1, 12a-2, 12a-3, 12a-4 and 12b-1, 12b-2, 12b in which couplings 12 are formed at 90 ° intervals. -3 and 12b-4, while the coupling 13 is connected to three pairs of connecting holes 13a-1, 13a-2, 13a-3 and 13b-1, 13b-2 formed at intervals of 120 °. , 13b-3. In the coupling 13, the directions of the shaft members 11b and 11c fixed to the flanges 13a and 13b are different by 30 °. Therefore, in the drive shaft 11 having such a configuration, the direction of the swing arm 8 can be changed by 30 ° by changing the positions of the coupling holes of the coupling 12 and the coupling 13 and fixing them.

  As shown in FIGS. 3 and 4, the rotation mechanism 10 includes a crank arm 20 connected to the shaft member 11 a of the drive shaft 11, a gas spring 21 as a spring supported by the crank arm 20, and a drive mechanism. Actuator 22. The crank arm 20 has a shape bent in a U-shape. A regular hexagonal insertion hole 20a for inserting and fixing the shaft member 11a is formed at one end, and a gas spring is formed at the other end. 21 and a shaft 20b that rotatably supports the actuator 22 are provided.

  The gas spring 21 is provided with a piston (not shown) that slides in the axial direction integrally with the rod 21b inside the cylinder 21a, and the cylinder 21a divided into two chambers by the piston is filled with compressed gas. Is something. The gas spring 21 has both chambers communicated with each other by an orifice (not shown) provided in the piston, and the chamber on the rod 21b side of the piston has a smaller area for receiving gas pressure than the opposite side. Therefore, the rod 21b always exhibits a reaction force in the extending direction. The gas spring 21 is disposed along the column member 5 and is rotatably supported by a shaft 21c.

  The actuator 22 includes a feed motor 22a and a rod 22b that expands and contracts by converting the rotation of the feed motor 22a into a linear motion using a ball screw (not shown) or the like. The actuator 22 is disposed along the column member 5 together with the gas spring 21, and is rotatably supported by a shaft 22c.

Crank arm 20, the position of S _H indicated by a solid line in FIG. 3 (hereinafter, referred to as "upper limit position".) And the position of S _L indicated by a dashed line (hereinafter, referred to as "lower position".) Between at Rotate. When the crank arm 20 is in the upper limit position S _H and the lower limit position S _L, the swing arm 8 is in the position of S _L shown in FIG. 2, respectively in position and a dashed line S _H indicated by a solid line. Incidentally, the rotation mechanism 10, the limit switch 23a for stopping the operation of the actuator 22 by detecting the upper limit position S _H and the lower limit position S _L respectively, 23b are provided. Further, the crank arm 20 is provided with a pin 24 for operating in contact with the limit switches 23a and 23b.

Further, the parking device 4 in the present embodiment, when the closure member 9 is in the drive shaft 11 of the swing arm 8 in the vicinity (position indicated by S ₀ in FIG. 2) horizontal distance is farthest to the closing member 9 , the reaction force line 51 substantially right angle to each other to the position of the line 50 and the gas spring 21 connecting the drive shaft 11 of the shaft 20b and the swing arm 8 of the crank arm 20 of the gas spring 21 (the position indicated by S ₀ in FIG. 6) is there. Incidentally, as shown in FIG. 6, when the closure member 9 is in the upper limit position S _H, the connecting member 14 is in the vertical direction, when in the lower limit position S _L, the connecting member 14 is in the horizontal direction. Then, the position of S ₀ shown in FIG. 2 and FIG. 6 is a position where the crank arm 20 is lowered 22.5 ° from the upper limit position S _H. The position of S ₁ is a position where the crank arm 20 is 45 ° downward from the upper limit position S _H.

Further, the gas spring 21 is in the position of S _{0 so} as to balance the moment around the drive shaft 11 of the swing arm 8 due to the load of the swing arm 8 and the closing member 9 (actually due to the load of the swing arm 8 and the closing member 9). It is set to a spring force that causes the crank arm 20 to act on a moment that is slightly less than the moment around the drive shaft 11 of the swing arm 8. Therefore, in the parking device 4 according to the present embodiment, the moment due to the load of the swing arm 8 and the closing member 9 is canceled by the reaction force of the gas spring 21 at this position, so that the swing arm 8 and the closing member 9 rotate with a small force. Can be made. In particular, between the S ₁ ~S ₀ ~S _H, the distance in the horizontal direction from the drive shaft 11 hardly changes, force when rotating the swing arm 8 and the closure member 9 between these Hodon And no different.

  About the parking apparatus 4 in this embodiment comprised as mentioned above, the operation | movement is demonstrated below. FIG. 7 is a schematic diagram showing the operation of the parking device 4 of FIG. 1, wherein (a) shows a case where a normal passenger car 100 is parked as a parking vehicle in the parking space 1a, and (b) shows parking in the parking space 1a. It is a figure which shows the case where the one box car 101 parks as a vehicle.

First, before a parked vehicle such as the ordinary passenger car 100 or the one-box car 101 enters the parking space 1a, the actuator 22 is extended, the swing arm 8 is in the raised position, and the closing member 9 is It is located at a point A (position _S0 shown in FIG. 2) having substantially the same height. In this state, since the distance between the closing member 9 and the parking lot ground 1 is higher than the vehicle height of the parked vehicle, the parked vehicle can freely enter and leave the parking space 1a.

  When the parked vehicle enters the parking space 1a, the actuator 22 contracts, the swing arm 8 rotates, and stops when the closing member 9 descends to a point B high enough to restrict the entry and exit of the vehicle. . At this time, the trajectory of the closing member 9 is an arc-shaped trajectory centered on the drive shaft 11 in a plane including the vehicle entry / exit direction and the vertical direction. In a state where the closing member 9 is lowered to the point B, the parked vehicle is surrounded by the left and right support members 5 and the closing member 9, and cannot leave the parking space 1a. As a result, unauthorized exit of the unsettled vehicle can be reliably prevented.

  When the parking device 4 is used in an unmanned parking lot, the sensor senses that the parked vehicle has entered the parking space 1a, and the control device activates the actuator 22 by this detection signal and lowers the closing member 9. Like that. In this case, a sensor is provided on the closing member 9 so that the control device stops the contraction of the actuator 22 when the closing member 9 approaches the parked vehicle to a predetermined distance. As a result, the contraction of the actuator 22 can be stopped when the closing member 9 is lowered to a point B high enough to restrict the entry and exit of the vehicle.

  Here, since the swing arm 8 is formed in an upwardly curved arc shape, for example, even when the one-box car 101 enters as shown in FIG. 7B, the closing member 9 is lowered. The swing arm 8 is prevented from contacting the parked vehicle when In addition, since the swing arm 8 is formed in an upwardly curved arc shape, when the closing member 9 is lowered, the closing member 9 is turned around the front part of the parked vehicle so that the parked vehicle is completely retreated. Can be prevented.

  When the parking device 4 is used in an unmanned parking lot, when the user detects that a parking fee has been charged at the time of payment, the control device activates the actuator 22 to raise the closing member 9. Thereby, it becomes possible to use the parking apparatus 4 also in an unmanned parking lot. In addition, as described above, the parking device 4 according to the present embodiment has a configuration in which the closing member 9 is lowered at the front portion of the parked vehicle to prevent the vehicle from leaving. It is possible to prevent a user of a good-willing parking lot from leaving without being settled.

  By the way, in the parking apparatus 4 in the present embodiment, the contraction of the actuator 22 is stopped by the sensor provided on the closing member 9 as described above when the closing member 9 approaches the parked vehicle to a predetermined distance. It is also assumed that the sensor has failed or the parked vehicle has an unexpected projection. In such a case, even when the distance between the closing member 9 and the vehicle is equal to or less than a predetermined threshold value, it is assumed that the contraction of the actuator 22 does not stop and the closing member 9 contacts the vehicle and damages the vehicle. .

  Therefore, the parking device 4 in the present embodiment includes a safety mechanism 30 (see FIG. 3) that stops the descent of the closing member 9 when the closing member 9 comes into contact with the vehicle. The safety mechanism 30 pivotally supports the shaft 22c of the actuator 22, and includes a slider 31 that can slide substantially parallel to the direction of expansion and contraction of the actuator 22 (vertical direction in the example of FIG. 3), and a slider 31. An auxiliary spring 32 that biases the actuator 22 in the substantially extending direction (downward in FIG. 3) and a switch 33 that stops the operation of the actuator 22 when the slider 31 slides a predetermined amount in the substantially contracting direction of the actuator 22 are provided. .

FIG. 8 is an explanatory diagram of the operation of the safety mechanism 30.
The slide direction of the slider 31 is restricted to the vertical direction, and the slider 31 is restricted to slide only between the position shown in FIG. 8A and the position shown in FIG. Further, in the parking device 4 according to the present embodiment, the gas spring 21 exerts a moment on the crank arm 20 by the gas spring 21 so as to slightly lose the moment around the drive shaft 11 of the swing arm 8 due to the load of the swing arm 8 and the closing member 9. In other words, because the load of the swing arm 8 and the closing member 9 is slightly applied to the actuator 22 (force F _{1 in} FIG. 8A), the slider 31 has a vertically downward force F _2. The slider 31 is slid to the position (a) in FIG. 8 regardless of the expansion / contraction operation of the actuator 22. Further, since the slider 31 is urged vertically downward (force F ₃ ) by the auxiliary spring 32, the swing arm caused by the moment applied to the crank arm 20 by the gas spring 21 and the load of the swing arm 8 and the closing member 9 is used. Even in a state (F ₁ = 0) in which the moment around the drive shaft 11 of 8 is perfectly balanced (F ₁ = 0), the slider 31 is slid to the position shown in FIG. In short, the auxiliary spring 32 only needs to have an urging force that can maintain the state in which the slider 31 is slid vertically downward regardless of the expansion / contraction operation when the actuator 22 is expanded / contracted.

In the safety mechanism 30 having this configuration, when the swing arm 8 is lowered by operating the actuator 22 to contract, the swing arm 8 or the closing member 9 comes into contact with the parked vehicle 102 for some reason. As shown in FIG. 8B, the force F ₁ applied to the actuator 22 is released by the reaction force F ₄ from the parked vehicle 12, and the actuator 22 is contracted to further apply an upward force to the slider 31. F ₅ acts and the slider 31 slides vertically upward. When the slider 31 slides by a predetermined amount and reaches the position shown in FIG. 8B, the switch 33 is activated to stop the contraction operation of the actuator 22. Therefore, the swing arm 8 does not descend any further, and the parked vehicle 102 can be prevented from being damaged.

  In this embodiment, the rotation mechanism 10 including the gas spring 21 and the actuator 22 is arranged along the column member 5 erected in the vertical direction. It is also possible to arrange the parking space 1a in the direction of entering and exiting. Further, the gas spring 21 and the actuator 22 do not need to be parallel to the support member 5 and can be disposed obliquely within a range where the above-described operation is possible.

  The parking device of the present invention prevents unauthorized exit of an unsettled vehicle in a pay parking lot, and alerts the parking lot user when leaving the vehicle. This is useful as a device that prevents the user from exiting.

It is a perspective view of the parking apparatus in the embodiment of the present invention. It is principal part sectional drawing which looked at the swing arm vicinity of the parking apparatus of FIG. 1 from A direction. It is principal part sectional drawing which looked at the rotation mechanism vicinity of the parking apparatus of FIG. 1 from the A direction. It is a B arrow view which shows the principal part of FIG. It is a figure which shows the detail of the drive shaft of a swing arm, Comprising: (a) is a front view, (b), (c), (d), (e), (f) is C, D of (a), respectively. It is an E, F, G arrow line view. It is explanatory drawing which shows operation | movement of a crank arm. It is a schematic diagram showing operation | movement of the parking apparatus of FIG. 1, Comprising: (a) is a figure which shows the case where a normal passenger car parks as a parking vehicle in a parking space, (b) is a one-box car parked as a parking vehicle in a parking space. FIG. It is operation | movement explanatory drawing of a safety mechanism.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Parking ground 1a Parking space 2 Parking frame 4 Parking apparatus 5 Supporting member 6 Supporting member 7 Supporting member 8 Swing arm 9 Closing member 9a Buffer material 10 Rotating mechanism 11 Drive shaft 11a, 11b, 11c Shaft member 12, 13 Coupling 12a, 12b, 13a, 13b Flange 12a-0, 12b-0, 13a-0, 20a Insertion holes 12a-1, 12a-2, 12a-3, 12a-4, 12b-1, 12b-2, 12b-3 , 12b-4 Connecting hole 14 Connecting member 14a Inserting hole 14b Fixed hole 20 Crank arm 20a Inserting hole 20b Shaft 21 Gas spring 21a Cylinder 21b Rod 21c Shaft 22 Actuator 22a Motor 22b Rod 22c Shaft 23a, 23b Limit switch 24 Pin 30 Safety mechanism 31 Slider 32 Auxiliary shoe Ring 33 switch

Claims (4)

A closing member disposed on the vehicle entrance / exit side in the upper space of the parking space, a support member fixed above the parking space, one end connected to the closing member, and the other end connected to the support member. In a parking device that includes a swing arm that is pivotally supported, and a rotation mechanism that rotates the swing arm, and restricts the exit of a vehicle parked in the parking space.
The rotation mechanism is
A crank arm having one end connected to the shaft of the swing arm;
A drive mechanism that is pivotally supported by the crank arm and elevates and lowers the closing member by extending and contracting; a drive mechanism that applies a load of the swing arm in a contraction direction;
A slider that pivotally supports the drive mechanism and is slidable substantially parallel to the direction of expansion and contraction of the drive mechanism;
An auxiliary spring for urging the slider in a substantially extending direction of the drive mechanism;
A parking apparatus comprising: a switch that stops the operation of the drive mechanism when the slider slides a predetermined amount in a substantially contracting direction of the drive mechanism.   The rotating mechanism is further provided with a spring that is pivotally supported by the crank arm and that acts on the crank arm with a moment that is balanced with the moment around the axis of the swing arm due to the load of the swing arm and the closing member. The parking apparatus according to claim 1.   The parking apparatus according to claim 2, wherein the spring is a gas spring.   When the closing member is in the vicinity of the position where the horizontal distance from the shaft of the swing arm to the closing member is the farthest, the line connecting the shaft fulcrum of the crank arm of the spring and the shaft of the swing arm and the spring The parking apparatus according to claim 2, wherein the reaction force line is substantially orthogonal.

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