JP4592608B2 - Parked vehicle exit prevention device - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a parked vehicle exit prevention apparatus that is installed in each parking section of a parking lot and prevents an illegal exit of a parked vehicle by raising a lock plate, and in particular, power transmission that transmits motor power to the lock plate. The present invention relates to an exit prevention device for a parked vehicle having an improved mechanism.

A conventional power transmission mechanism of this type of exit prevention device is disclosed in Patent Document 1.
The driving principle of such a power transmission mechanism will be described with reference to FIG.
A gear 3 connected to the motor 1 via a speed reduction mechanism 2 meshes with a gear 6 of a power transmission unit that connects the gear 4 and the gear 6 to each other via a joint spring 5 made of a maki spring. The joint spring 5 is fixed to the gear 4 side at one end side and fixed to the gear 6 side at the other end side, and the diameter of the maki spring is reduced by the rotation of the motor 1 in the direction in which the locking plate 18 is raised to function as a spring joint. Further, the rotation of the motor 1 in the direction in which the locking plate 18 is laid down increases the diameter of the maki spring and abuts against the inner wall of each cylindrical hollow portion of the gear 4 and the gear 6 and is constrained to approximately 100% from the gear 6 to the gear 4. Transmits the rotational force of.

  The gear 4 meshes with a gear 8 that is braked and held only by the electromagnetic brake 7 for the locking operation of the locking plate 18, and the gear 8 meshes with a gear 10 that is rotatably attached to the fixed shaft 9. Convex portions 11 and 12 are formed on the gear 10, and one end of a maki spring 13 wound around the fixed shaft 9 is locked to the convex portion 12, and the other end of the maki spring 13 is attached to the fixed shaft 9 so as to be freely rotatable. The projection 15 of the rotating flange 14 is locked. Further, when the locking plate 18 is erected and when an external force is applied to the locking plate 18 in a lying direction, the maki spring 13 is twisted due to the phase difference between the gear 10 and the rotary flange 14, and the diameter thereof changes. Is done.

  A pin 16 is fixed to the rotating flange 14 so as to be engaged with the convex portion 11 of the gear 10 and transmit the rotational force of the gear 10 100% thereafter when the relative rotation angle difference reaches a predetermined value. The rotating flange 14 is connected to a crank 20 via a link 17, and the crank 20 is fixed to a shaft 19 connected to a locking plate 18. A lock plate spring 21 is wound around the shaft 19, and an end portion of the lock plate spring 21 is engaged with a pin 22 fixed to the fixing portion and a pin 23 fixed to the crank 20, thereby locking the lock plate. 18 is elastically biased in the standing direction.

Next, the operation of this power transmission mechanism will be briefly described.
First, the overturning operation of the locking plate 18 will be described.
The motor 1 rotates in the direction b in response to the overturning operation command signal, the joint spring 5 is twisted via the gears 3 and 6, the diameter is enlarged, and is constrained by the gear 4 and the inner wall of the gear 6. Approximately 100% rotational force is transmitted. When the gear 4 is rotated, the gear 10 is rotated in the c direction via the gear 8, the maki spring 13 is loosened, and the frictional force between the maki spring 13 and the fixed shaft 9 is reduced, so that the braking and holding of the rotating flange 14 is maintained. Canceled. When the gear 10 further rotates, the convex portion 11 is locked to the pin 16 and the rotating flange 14 rotates integrally with the gear 10. As a result, the crank 20 and the shaft 19 are rotated against the elastic force of the locking plate spring 21 via the link 17 to cause the locking plate 18 to fall. Then, it detects that the locking plate 18 has been rotated to a predetermined lying position and transmits a stop signal to the motor 1 to stop the motor 1.

Next, the standing operation of the locking plate 18 will be described.
When the vehicle detection sensor detects the vehicle, the motor 1 rotates in the direction a, the joint spring 5 is twisted through the gears 3 and 6 to reduce the diameter, and the joint spring 5 serves as a rotational force on the gear 4 as an elastic joint. Tell. The gear 10 rotates in the d direction, the engagement between the convex portion 11 and the pin 16 is released, the rotation flange 14 becomes free to rotate, and the locking plate 18 is raised by the elastic force of the locking plate spring 21. When the locking plate 18 hits the bottom of the vehicle, the rotation of the rotary flange 14 stops, and the diameter of the maki spring 13 is reduced by the rotation of the motor 1 and the frictional force between the maki spring 13 and the fixed shaft increases. Due to the increase in the frictional force, the load acting on the gears 4, 8, 10 and the like is increased, the joint spring 5 is further twisted by the motor 1, and the frictional force between the maki spring 13 and the fixed shaft 9 is further increased. . Thereafter, the motor 1 is stopped, the electromagnetic brake 7 is operated, and the gear 8 is braked and held.

According to such a power transmission mechanism, when an overload acts on the locking plate 18, the maki spring 13 slides on the fixed shaft 9 to allow the rotation of the rotary flange 14 and an excessive force acting on the components. In addition to being able to suppress, the lock plate 18 is held and fixed by the frictional force between the maki spring 13 and the fixed shaft 9 after the lock plate 18 hits the bottom of the vehicle.
Japanese Patent No. 1568088

  By the way, when the exit prevention device is installed in each parking section, the above-described drive mechanism is stored and installed in a waterproof storage box as a waterproof measure. However, in the conventional power transmission mechanism, the gear 10 to the maki spring 13 are fixed. Since the power transmission part that includes the shaft 9 and reaches the rotary flange 14 and the power transmission part that reaches the lock plate 18 via the crank 20 and the shaft 19 are connected using the link 17, both these power transmission parts It was necessary to provide each storage space in the storage box. In addition, when an excessive load is applied to the lock plate 18, the link 17 may be deformed, and if the deformation is accumulated over many years of use, there is a possibility that the link 17 may be disabled.

  The present invention has been made paying attention to the above problems, and an object of the present invention is to provide a parked vehicle exit prevention device including a power transmission mechanism having a compact configuration capable of reducing the storage space.

For this reason, the invention of claim 1 is installed in each parking section of the parking lot, and locks the locking plate for locking the parked vehicle and the locking position for standing and locking the parked vehicle. A drive unit capable of selectively driving the locking plate by a motor at a lying position that allows withdrawal, and the driving unit elastically urges the locking plate in a standing direction, and from the motor In the power transmission mechanism that transmits power to the locking plate, a power transmission unit comprising a rotating body facing each other and a maki spring that changes its diameter by being twisted by a phase difference between them is interposed to reduce the maki spring diameter. Accordingly, in the parked vehicle exit prevention device having a fixing member that is pressed in the radial direction by the maki spring, the fixing member has a hollow shape, and the shaft member is rotatable in the hollow portion with respect to the fixing member. Are inserted into the shaft member. One of the rotary member facing secured to, and wherein the mounting freely rotate the other rotating bodies facing each other on the outer peripheral portion of the fixing member, and configured for connecting the locking plate to said shaft member To do.

In such a configuration, the power transmission unit including the maki spring and the power transmission unit that transmits the power of the power transmission unit to the lock plate can be arranged coaxially, and the drive unit of the lock plate can be made compact. .
According to a second aspect of the present invention, it is preferable that a prism is formed on the shaft member, and the one rotary body is fitted and fixed to the prism.
In such a configuration, the shaft member and the rotating body can be fixed simply by fitting the rotating body into the prismatic portion of the shaft member, and the assembly thereof becomes easy.

According to a third aspect of the present invention, the power transmission mechanism is a joint spring comprising a second maki spring that is twisted by a power transmission mechanism portion between the motor and a power transmission portion provided with the maki spring to change its diameter. It is good to set it as the structure which interposes in series.
In such a configuration, the joint spring interposed in series can suppress the overload state of the motor 1 and the torque fluctuation at the start of the motor.

  In the invention of claim 4, from the sensor control unit that generates the vehicle presence / absence determination output based on the output state of the vehicle detection sensor that detects the presence / absence of the vehicle in the parking area, the determination output of the sensor control unit, and the charge settlement machine A parking management control unit that performs parking time management and lock plate drive control based on the settlement completion signal of the vehicle, and a motor control unit that controls driving of the motor based on the drive control command of the parking management control unit, The control board provided is configured to be stored in a storage box that stores the power transmission mechanism.

  According to the parked vehicle exit prevention device of the present invention, since the power transmission unit connected by the conventional link is arranged on the same axis, a compact configuration that does not require a space for one power transmission shaft, and a storage box The installation space for the power transmission mechanism occupying the inside can be reduced, and the storage box can be reduced in size. In addition, by omitting links that could be deformed when an overload is applied to the locking plate, it is possible to prevent malfunction of the power transmission mechanism due to deformation of the link, and reliability of the exit prevention device Can be improved. Moreover, the number of parts can be reduced by simplifying the configuration, and the manufacturing cost of the exit prevention device can be reduced.

  In addition, by using the increased space in the storage box, a sensor control unit that determines the presence or absence of a vehicle based on the output state of the vehicle detection sensor, a determination output of the sensor control unit, and a payment completion signal from the fee adjustment machine Conventionally, control functions on the terminal side such as a parking management control unit that performs parking time management and lock plate drive control, and a motor control unit that controls driving of the motor by a drive control command of the parking management control unit are integrated into the control board. Can be stored in a storage box that is approximately the same size as the conventional box, and the struts that have been installed in each parking section to store part of the control functions of the terminal can be omitted. This has the effect of reducing the equipment cost of the parking management system.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows a state in which the parked vehicle exit prevention device according to the present embodiment is arranged in a parking section. The exit prevention device 100 includes a locking unit 101 that locks the parked vehicle, and a chain of the locking unit 101. A drive unit 102 for driving the lock plate 112 and a cover unit 103 are provided. The drive unit 102 is installed at a substantially central portion at the side end of each parking section 200, and the locking section 101 is disposed from the drive section 102 side to the parking section 200. Installed to extend toward the center of the building.

  The locking portion 101 is provided with a rotating shaft 111 that is rotatably supported by a base portion 110 fixed to the ground, and is provided integrally with the rotating shaft 111 and stands up between front and rear tires of a parked vehicle. A locking plate 112 that is rotated integrally with the rotary shaft 111 to a locking position that prevents the vehicle from leaving and a unlocking position that allows the vehicle to fall down and a position corresponding to the locking plate 112 And a resin cover 113 that is inclined downward in a direction opposite to the rotation shaft 111 and fixed to the base portion 110 so that the vehicle can easily pass therethrough. In the locking plate 112, a metal plate 112a is fixed to the rotating shaft 111 by, for example, welding, and the peripheral portion of the plate 112a is reinforced by a metal pipe 112b.

  The drive unit 102 includes a power transmission mechanism that drives the locking plate 112, a motor control unit that drives and controls the motor 141 shown in FIG. A connecting portion between the output shaft 155 and the rotating shaft 111 shown in FIG. 2 of the power transmission mechanism is covered with a cover 121. The storage box 120 is provided with a state display unit 122 that displays the operation state of each part of the exit prevention device 100 during maintenance. Reference numeral 123 denotes a window cover with a lock that covers an external operation window of a manual switch provided in the storage box 120 in order to manually fall the lock plate 112 when trouble occurs. Normally it is locked and cannot be removed.

  Although not shown, the cover portion 103 includes a bearing portion that pivotally supports the rotation shaft 111, and a vehicle detection sensor that includes a transmission coil and a reception coil and detects the presence or absence of a vehicle in the parking section 200. Covered with a cover 130.

Next, the structure of the power transmission mechanism of this embodiment stored in the storage box 120 will be described with reference to FIGS.
In the power transmission mechanism of the present embodiment, a gear 143 is connected to a motor 141 via a speed reduction mechanism 142, and the gear 143 meshes with the gear 144. The gear 144 is connected to the gear 146 through a joint spring made of a second maki spring built in the case 145. The gear 144 is rotatably supported by bearings 147 and 148. The rotation direction of the gear 144 is detected by using the rotating plate 149 and the two optical sensors 150 and 151, respectively, and the motor 141 is stopped by detecting the end of the standing operation and the end of the lying operation. The second maki spring functions as a spring joint by reducing the maki spring diameter by the rotation of the motor 141 in the direction in which the locking plate 112 is raised. Further, the rotation of the motor 141 in the direction in which the locking plate 112 is laid down increases the diameter of the maki spring, abuts against the inner wall of the case 145 and is restrained, and a substantially 100% rotational force is transmitted from the gear 144 to the gear 146. The case 145 is divided into a portion integrated with the gear 144 and a portion integrated with the gear 146 side, and corresponds to a conventional hollow cylindrical portion.

  The gear 146 meshes with the gear 152, and the gear 152 is rotatably attached to the outer peripheral portion of the fixed shaft 154 that is a fixed member via the slide bearing 153. The fixed shaft 154 has a hollow shape, and an output shaft 155 that is a shaft member passes through the hollow portion through a plain bearing 156 to freely rotate. The output shaft 155 has a prismatic part 155a, and a rotating body 157 is fitted and fixed to the prismatic part 155a. Accordingly, the rotation of the rotating body 157 is directly transmitted to the output shaft 155.

  Two protrusions 158 (one not shown) are formed on the gear 152, and one end of a maki spring 159 wound around the fixed shaft 154 and the rotating body 157 is locked to the one mushion 158. The other end of the rotating member 157 is locked to the convex portion 160 of the rotating body 157. Further, when the locking plate 112 is erected and when an external force acting on the locking plate 112 is applied, the maki spring 159 is twisted due to the phase difference between the gear 152 and the rotating body 157, and the diameter thereof changes. Is done. A pin 161 is fixed to the rotator 157 to engage with a convex portion (not shown) of the gear 152 and transmit the rotational force of the gear 152 thereafter 100% when the relative rotation angle difference reaches a predetermined value.

The output shaft 155 is connected to the rotating shaft 111 of the locking plate 112 via a link mechanism 162 (comprising a crank 162a, a link 162b, and a crank 162c) covered with a cover 121 as shown in FIG. Further, the output shaft 155 is wound is Kusarijoban spring 163, the ends of Kusarijoban spring 163 is fixed to the output shaft side attachment portion 162a of the pin 164 and the link mechanism 162 which is fixed to the fixed part The locking plate 112 is locked to a pin (not shown), and the locking plate 112 is elastically biased in the standing direction. In FIG. 4, reference numeral 165 denotes a bearing for the rotating shaft 112.

  In addition, as shown in FIG. 2, the storage box 120 includes a sensor control unit that generates a vehicle presence / absence determination output based on the output state of the vehicle detection sensor, a determination output from the sensor control unit, and a charge settlement machine. A parking management control unit that performs parking time management and locking plate drive control based on a payment completion signal and a motor control unit that drives and controls the motor 141 based on a drive control command of the parking management control unit are integrally provided. The control board 170 is arranged in the vertical direction along the longitudinal direction of the storage box 120. On the control board 170, the above-described optical sensors 150 and 151 and, for example, an LED that is a light emitting unit of the state display unit 122 (not shown) are attached.

  As shown in FIG. 3, the storage box 120 has a waterproof structure in which the opening of the upper housing 120 a is covered with a cover 120 b and fixed with bolts 125 with a waterproof packing 124 interposed therebetween. In the storage box 120, as shown in FIGS. 2 and 3, a waterproof power supply and communication cable lead-in port 181, an external output cable lead-in port 182, a sensor cable lead-in port 185, a wiring terminal portion 183, and A switch 184 for manual operation of the locking plate 112 is also provided.

Next, the operation of the power transmission mechanism of this embodiment will be described.
Since the power transmission principle of the power transmission mechanism of the present embodiment is substantially the same as that of the conventional one shown in FIG. 5, it will be briefly described. Here, the power transmission unit provided with the gear springs including the gears 144 and 146 and the second spring spring corresponds to the power transmission unit including the gears 6 and 4 and the joint spring 5 shown in FIG. 154, the maki spring 159, and the rotating body 157 correspond to the power transmitting section from the gear 10 of FIG. 5 to the rotating flange 14 including the maki spring 13 and the fixed shaft 9, and the output shaft 155 is shown in FIG. Corresponds to the axis 19.

First, the overturning operation of the locking plate 112 will be described.
When the parking management control unit provided on the control board 170 receives payment completion from a charge settlement machine (not shown), it transmits a lodging operation command to the motor control unit. The motor control unit rotates the motor 141 to the side on which the locking plate 112 falls on the basis of the received fall command. As the motor 141 rotates, the gears 143 and 144 rotate, and the diameter of the spring spring of the joint spring is increased. As a result, the rotational force of the gear 144 is transmitted to the gear 146 approximately 100% via the joint spring. When the gear 146 rotates, the gear 152 rotates on the fixed shaft 154, the maki spring 159 is loosened, and the frictional force between the maki spring 159 and the fixed shaft 154 is reduced. Canceled. When the gear 152 further rotates, a convex portion (not shown) formed on the gear 152 is locked to the pin 161, and the rotating body 157 rotates integrally with the gear 152. As a result, the output shaft 155 rotates integrally with the rotating body 157 against the standing elastic force of the locking plate spring 163, and the locking plate 112 is rotated in the lying down direction via the link mechanism 162 and the rotating shaft 111. To move. When the locking plate 112 is rotated to a predetermined lying position, a detection output on the sensor side for detecting the end of the lying operation of the optical sensors 150 and 151 is received, and the motor control unit stops the motor 141 and the lying action is performed. finish.

Next, the standing operation of the locking plate 112 will be described.
When the vehicle detection sensor housed in the cover unit 130 detects a vehicle that has entered the parking area 200 from the direction of the arrow in FIG. 1, the parking management control unit receives the vehicle presence determination output from the sensor control unit and the motor control unit Send a standing motion command. The motor control unit rotates the motor 141 to the side where the locking plate 112 rises according to the received standing command. The rotation of the motor 141 twists the joint spring through the gears 143 and 144 in a direction to reduce its diameter, and the joint spring transmits a rotational force to the gear 146 as an elastic joint. As a result, the gear 152 rotates in the direction opposite to that of the overturned state, the engagement between the convex portion (not shown) and the pin 161 is released, the rotating body 157 and the output shaft 155 become free to rotate, and the locking plate spring 163 The output shaft 155 is rotated by the standing elastic force, and the locking plate 112 is raised. The rotation of the output shaft 155 and the rotating body 157 where the locking plate 112 hits the bottom of the vehicle stops, the rotation of the motor 141 causes the MAKI spring 159 to be tightened, and the pressing force to the fixed shaft 154 rises. The frictional force acting between the two increases. Since the load acting on the gears 146, 152 and the like is increased by the increase of the frictional force, the coupling spring is further twisted by the motor 141, and the frictional force between the maki spring 159 and the fixed shaft 154 is increased. Thereafter, in response to the detection output from the sensor for detecting the end of the standing operation among the optical sensors 150 and 151, the motor control unit stops the motor 141 and the standing operation is completed.

  According to the configuration of the power transmission drive of this embodiment, the fixed shaft 154 has a hollow shape, and the output shaft 155 is passed through the hollow portion, so that the power transmission portion that has been conventionally connected via the link 17 is illustrated. As shown in Fig. 2, since it is arranged on the same axis, the space for one power transmission shaft is not required, the installation space for the power transmission mechanism in the storage box 120 can be reduced, and the storage box 120 can be made compact. It becomes. In addition, since the link 17 that may be deformed when an overload is applied to the locking plate 112 is omitted, it is possible to prevent the power transmission mechanism from being disabled due to the deformation of the link. Reliability can be improved. Further, the configuration is simplified, the number of parts can be reduced, and the manufacturing cost of the exit prevention device 100 can be reduced.

  Furthermore, if the storage box 120 is made the same size as the conventional one, the free space in the storage box 120 is increased and the degree of freedom of layout is increased, so that all control functions on the terminal side for information communication with the fee settlement machine ( The above-described sensor control unit, parking management control unit, motor control unit, and the like) can be collectively stored on the control board 170 in the storage box 120. Thereby, the support | pillar etc. which were installed for every parking division in order to accommodate a part of control function of a terminal can be abbreviate | omitted, and the installation cost of the parking management system including a fee adjustment machine can be reduced.

Parking block layout diagram of one embodiment of an exit prevention device according to the present invention Arrangement state of the drive unit in the storage box 2 is a cross-sectional view of the drive unit of FIG. The figure which shows the structure of the connection part which connects a drive part and a locking part. The figure which shows the principle of operation of the conventional power transmission mechanism

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Exit | release prevention apparatus 102 Drive part 101 Lock part 112 Locking board 141 Motor 143,144,146,153 Gear 154 Fixed shaft 155 Output shaft 155a Rectangular column part 157 Rotating body 159 Maki spring 163 Locking board spring 170 Control board

Claims (4)

Installed in each parking section of the parking lot by a motor to a locking plate that locks the parked vehicle and a locked position that stands up and locks the parked vehicle and allows the parked vehicle to exit A drive unit capable of selectively driving the locking plate, and the driving unit elastically biases the locking plate in a standing direction and transmits power from the motor to the locking plate. In the transmission mechanism, there is a power transmission part composed of rotating bodies facing each other and a maki spring that changes its diameter by being twisted by the phase difference between them, and presses in the radial direction with the maki spring as the maki spring diameter decreases. In the parking vehicle exit prevention device having a configuration including a fixed member to be operated,
The fixing member has a hollow shape, a shaft member is passed through the hollow portion so as to be rotatable with respect to the fixing member, one of the rotating bodies facing each other is fixed to the shaft member, and the rotating bodies facing each other The other side of the fixed member is rotatably attached to the outer peripheral portion of the fixing member, and the locking member is connected to the shaft member .   The parked vehicle exit prevention device according to claim 1, wherein the shaft member is configured to form a prism portion, and the one rotating body is fitted and fixed to the prism portion.   The power transmission mechanism has a power transmission mechanism portion between the motor and a power transmission portion provided with the maki spring, and a joint spring composed of a second maki spring whose diameter is changed by being twisted is interposed in series. Item 3. The parked vehicle exit prevention device according to Item 1 or 2.   Based on an output state of a vehicle detection sensor that detects the presence or absence of a vehicle in a parking area, a sensor control unit that generates a vehicle presence / absence determination output, a determination output from the sensor control unit, and a payment completion signal from a fee adjustment machine A control board that integrally includes a parking management control unit that performs parking time management and lock plate drive control, and a motor control unit that controls driving of the motor based on a drive control command of the parking management control unit, The parked vehicle exit prevention device according to any one of claims 1 to 3, wherein the parked vehicle is stored in a storage box that stores the transmission mechanism.

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