JP2009084956A - Parking management device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a parking management device which is excellent in safety and can provide design allowance in relation to the closed position of a locking plate. <P>SOLUTION: In the parking management device equipped with a locking plate drive mechanism 3 for operating the locking plate 2 to be opened/closed by the motor 7 power, the locking plate drive mechanism 3 has a first locking plate rotation axis 22 to be rotated by the motor 7 power and equipped with an engageably inserting part 28 to be engaged with the locking plate 2, the locking plate 2 is equipped with an engagement hole 41 to be engaged with the engageably inserting part 28 of the first locking plate rotation axis 22, and the cross-sectional shape of the engagement hole 41 is a shape to create a fan-like loose gap in a 180 degree symmetrical position with the engageably inserting part 28 engaged in the engagement hole 41, allowing the locking plate 2 to rotate by a prescribed angle to the opening direction relative to the engageably inserting part 28. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a parking management device such as an automobile installed in a parking lot.

  2. Description of the Related Art Conventionally, a parking management device is known in which a parked automobile is mechanically restrained and the restraint is released by paying a fee. As such a parking management device, there is one disclosed in Patent Document 1.

  In the parking management device disclosed in Patent Document 1, the lock plate is configured to rotate with a slight backlash in the circumferential direction with respect to the lock plate rotation shaft.

JP 11-1225025 A (Claims, paragraph number 0042)

  In general, a parking management device restrains and releases a parked automobile or the like by a lock plate standing or falling. For this reason, if there is a person near the lock plate during the tilting operation of the lock plate, the person's hand or foot may be pinched by the lock plate. Further, in the parking management device disclosed in Patent Document 1, although the lock plate rotates with a slight backlash in the circumferential direction with respect to the lock plate rotation shaft, when the lock plate falls down, If it is more than a certain thickness, such as hands and feet, it will still be sandwiched by the lock plate.

  In addition, the conventional parking management device prevents a slight gap or a gap from being formed between the base plate portion when the lock plate is collapsed, that is, when the lock plate is closed. There is a need to do. Even if this design is performed firmly, the product may not be assembled as designed due to component errors at the assembly stage. In particular, in a product in which a gap is not generated between the base and the base, a slight assembly error causes the generation of a gap or the reverse state.

  The present invention has been made in view of such a problem, and an object of the present invention is to provide a parking management device that is excellent in safety and can have a design margin with respect to the closed position of the lock plate. It is what.

  In order to solve the above problems, the present invention provides a parking management device including a lock plate drive mechanism that operates a lock plate that can be opened and closed by the power of a motor, wherein the lock plate drive mechanism is rotated by the power of the motor, The lock plate includes a first lock plate rotation shaft provided with an engagement insertion portion engaged with the lock plate, and the lock plate is engaged with an engagement insertion portion of the first lock plate rotation shaft. The cross-sectional shape of the engagement hole is such that a play-like clearance gap is formed at a 180 ° symmetrical position in a state where the engagement insertion portion is engaged with the engagement hole, and the engagement insertion portion is The lock plate can be rotated by a predetermined angle in the opening direction.

  When configured in this manner, the lock plate rotates integrally with the first lock plate rotation shaft in the circumferential direction with a margin corresponding to the play gap. For this reason, in a state where the lock plate is rolled (closed), the lock plate has a margin for lifting in the standing direction (opening direction) by the play gap. Therefore, even when a human hand or foot is sandwiched between the lock plate and the ground, the lock plate is lifted in the opening direction, so that the human hand or foot is prevented from being injured. Therefore, the safety of the parking management device is improved. In addition, since there is a margin of angle when the lock plate contacts the ground, there is an allowance for the play gap, so an assembly error of about a fraction of the play gap is allowed, and the design margin is improved.

  According to another invention, in addition to the above-described invention, the lock plate further includes a second lock plate rotation shaft and a cover having the engagement hole on the engagement insertion portion side of the second lock plate rotation shaft. And the engaged member has a square portion having a cubic shape and a plate-like plate portion attached so as to be in close contact with one end face of the square portion. The plate portion is bent so as to follow the shape of the end face on one end side of the lock plate, forming a side face on the one end side of the lock plate, and the cross-sectional shape of the engagement insertion portion is a pair of opposing sides having an arc shape. It has an oval shape, and the cross-sectional shape of the engagement hole swells in the same circumferential direction centering on the approximate center of each opposing side of the straight line that forms the oval shape at a pair of opposing corners in the oval shape It has a form. In such a configuration, the lock plate has a side surface because the plate portion also serves as the side surface of the lock plate. For this reason, the designability in the external appearance of the lock plate and the invasion prevention property such as dust are improved. Further, the shapes of the engagement insertion portion and the engagement hole are oblong, and the relative rotation between the both becomes smooth and easy to manufacture.

  Furthermore, in addition to the above-described invention, in another invention, the square portion has a laminated structure in which flat plate-like engagement plates provided with a plurality of engagement holes are laminated. In such a configuration, the engaged member can be easily manufactured, and the manufacturing cost can be reduced.

  In addition to the above-described invention, another invention is such that the play gap on the front end side of the lock plate has a wider angle than the play gap on the root side. When configured in this manner, the engagement hole has a gap portion having two different angles in the circumferential direction. For this reason, when a predetermined clearance is provided between the engagement insertion portion and the engagement hole, the engagement insertion portion has a rotation allowable range with respect to the engagement hole as compared with a case where a gap portion having the same angle is formed. And can be enlarged. Moreover, when obtaining the same rotation tolerance, this structure makes it possible to dispose the first lock plate rotation shaft closer to the base side of the lock plate.

  ADVANTAGE OF THE INVENTION According to this invention, while being excellent in safety, the parking management apparatus which can give the design margin regarding the closed position of a lock board can be provided.

  Hereinafter, parking management device 1 concerning one embodiment of the present invention is explained, referring to drawings.

  FIG. 1 is a perspective view showing a basic configuration of the parking management device 1.

  As shown in FIG. 1, the parking management device 1 is a vehicle sensing device comprising a lock plate drive mechanism 3 comprising an openable / closable lock plate 2 and the like that prohibits the leaving of a parked vehicle, and a loop sensor buried in the ground. And a control unit 6 in which a control unit 5 for controlling the lock plate driving mechanism 3 in response to a signal from the vehicle sensor 4 is incorporated.

  FIG. 2 is an exploded perspective view of the lock plate 2 and the lock plate drive mechanism 3 of the parking management device 1 according to the embodiment of the present invention. FIG. 3 is a perspective view of the lock plate driving mechanism 3 and its surroundings with the main cover 77 in FIG. 2 removed.

  The parking management device 1 is a parking management device including a lock plate driving mechanism 3 that operates a lock plate 2 that can be opened and closed by the power of a motor 7 described later. The basic configuration of the lock plate driving mechanism 3 used in the parking management device 1 is as follows. As shown in FIGS. 2, 3 and 8 to 15, the motor 7 and the power of the motor 7 are transmitted to the lock plate 2. It consists of a power transmission mechanism comprising a toothed wheel train and the like, and a link mechanism and a ratchet mechanism that are put in the power transmission mechanism.

  Here, a reduction gear box 8 is fixed to the motor 7 for decelerating the rotation of the motor 7 when energization to the motor 7 is turned off. In this embodiment, the rotation of the motor 7 is reduced to 1/180 by the reduction gear box 8 to form a kind of geared motor.

  On the other hand, the toothed wheel train includes an output gear 10 fixed to the tip of the first rotating shaft 9 serving as an output shaft of the motor 7, a first gear 11 having a large diameter that meshes with the output gear 10 and decelerates rotation, The first gear 11 and the second rotating shaft 12 that rotates together with the first gear 11 are configured. In this embodiment, the rotation of the motor 7 is finally reduced to about 1/700 by this tooth wheel train and transmitted to the lock plate 2 via a link mechanism described later.

  A link mechanism is provided following the tooth wheel train. The link mechanism includes a first gear 11, a locking shaft 13 provided on the first gear 11, a link 14 locked on the locking shaft 13, and a long hole 15 provided on the link 14. An engagement shaft 17 provided on a ratchet gear 16 serving as a second gear so as to engage with each other so as to be relatively movable, and a ratchet gear 16.

  The power transmission mechanism of the parking management device 1 includes a ratchet mechanism and a lock plate 2 in addition to the gear wheel train and link mechanism as described above for transmitting the rotation of the motor 7 to the lock plate 2. A biasing member that biases in the opening direction is incorporated.

  The ratchet mechanism includes a ratchet cam 19 fixed to the first gear 11, a ratchet lever 20 that abuts on the ratchet cam 19, a ratchet pawl 21 that operates integrally with the ratchet lever 20, and the ratchet pawl 21. The ratchet gear 16, a third rotating shaft 22 to which the ratchet gear 16 is fixed, a ratchet spring 23 whose one end is locked to the ratchet lever 20, a ratchet shaft 24 that serves as a pivotal support for the ratchet pawl 21, It mainly comprises a ratchet stay 25 that supports both end portions of the ratchet shaft 24 and is rotatable in the circumferential direction around the third rotation shaft 22.

  Note that the lock plate 2 is attached to a fourth rotation shaft 26 to which the third rotation shaft 22 is fitted via an engaged member 112 described later so as to be integrally rotatable. That is, the lock plate rotation shaft of the lock plate 2 has two rotation shafts, that is, a third rotation shaft 22 serving as a first lock plate rotation shaft and a fourth rotation shaft 26 serving as a second lock plate rotation shaft. ing. The third rotating shaft 22 is rotatably supported at one end by the bearing unit 27 and the other end is an engaging insertion portion 28 having a substantially oval cross section, and protrudes from the bearing unit 29 that supports the other end. ing.

  The urging member that constantly urges the third rotating shaft 22 that drives the lock plate 2 in the opening direction (= standing direction) of the lock plate 2 includes a drive spring 30 that is inserted into the third rotating shaft 22. . The drive spring 30 is incorporated so that one end thereof is in contact with a spring contact shaft 31 provided on the ratchet gear 16 and the other end is in contact with the bottom surface of the waterproof tray 32. This attachment is performed such that the lock plate 2 that rotates integrally with the ratchet gear 16 with play is urged in the opening direction.

  The power transmission mechanism such as the motor 7 and the gear train is placed in a box-shaped waterproof tray 32 that is fixed to the ground. The waterproof tray 32 is fixed to the base portion 35 of the lock plate base set 34. The lock plate base assembly 34 includes a base portion 35, a step base portion 36, a lock plate stopper 37 that prevents dent in the closed position of the lock plate 2, and a bearing that rotatably supports one end of the fourth rotating shaft 26. The unit 38 is mainly composed of a side cover 39 provided in the bearing unit 38 portion.

  The fourth rotating shaft 26 is a pipe having a cylindrical cross section. For this reason, it is strong in strength and the lock plate 2 is light. For this reason, the drive mechanism of the lock plate 2, for example, the motor 7 and the like can be made small and inexpensive, and the installation work can be easily performed.

  As shown in FIG. 15 or 16, a driven plate 40 that is bent to match the shape of the side surface of the lock plate 2 is disposed on the side surface facing the bearing unit 29 that is one end side of the lock plate 2. Yes. That is, the driven plate 40 that is a plate portion bent at an angle of about 45 degrees toward the center of the lock plate 2 is attached to the fin portion 113 of the lock plate 2 by welding. Further, a square portion 118 described later is attached to the back side of the lock plate 2 and to the bearing unit 38 side of the driven plate 40. The driven member 40 and the square portion 118 constitute an engaged member 112 described later. Further, as shown in FIG. 16, the driven plate 40 is provided with an engagement hole 41 communicating with the square portion 118. The engagement insertion portion 28 is inserted into the engagement hole 41 and is engaged with the engagement hole 41 with a backlash and a play gap described later.

  The motor 7 is attached to a motor frame 44, and bearings 45, 45 that rotatably support the second rotary shaft 12 are fixed to the motor frame 44. The motor frame 44 is fixed to the waterproof tray 32 and the base portion 35 by four screws 46. Further, the waterproof tray 32 is fixed to the base portion 35 with bolts 47 and the like for fixing the bearing units 27 and 29 (see FIG. 3). The lock plate stopper 37 is fixed to the base portion 35 with three bolts 48.

  One end of the ratchet spring 23 is hooked on a spring hook shaft 49 of the ratchet lever 20, and the other end is hooked on a spring hook hole 50 of the motor frame 44. A damper rubber 51 is provided between the ratchet stay 25 and the waterproof tray 32 to elastically support the rotation of the ratchet stay 25. Two retaining rings 54, 54 are fitted to the second rotating shaft 12 on the outer side of one bearing 45, and one retaining ring 55 is fitted on the outer side of the other bearing 45, respectively. The movement in the axial direction is prevented. A light shielding plate set 56 is further attached to the tip of the second rotating shaft 12.

  4A and 4B are diagrams showing the light shielding plate 57 in FIG. 2, in which FIG. 4A is a front view, and FIG. 4B is a side view seen from the direction indicated by the arrow B in FIG. 5A and 5B are diagrams showing the sensor boss 58 in FIG. 2, in which FIG. 5A is a cross-sectional view taken along the line AA of FIG. 2B, and FIG. . FIG. 6 is a plan view showing the waterproof tray 32 in FIG. FIG. 7 is a side view of the waterproof tray of FIG. 6 viewed from the direction of arrow VII.

  As shown in FIGS. 4 and 5, the light shielding plate assembly 56 includes a light shielding plate 57 whose tip is bent 90 degrees, a stepped portion 58a that fits into a central hole 57a of the light shielding plate 57, and two screw holes 58h and 58h. And a set screw (not shown) for attaching the sensor boss 58 to the second rotating shaft 12. As shown in FIG. 2, the sensor bracket 59 is provided with an upper limit sensor 60 and a lower limit sensor 61 each composed of a light receiving / emitting element, and the second rotating shaft 12 crosses the tip end portion 57 b of the light shielding plate 57. A light-shielding plate 57 is attached. The two sensors 60 and 61 are provided at approximately 180 degrees symmetrical positions, and detect the rotational position of the first gear 11 corresponding to the fully open position and the fully closed position of the lock plate 2.

  As shown in FIG. 6, the waterproof tray 32 has four holes 32 a for mounting the motor frame 44 and four shafts 64, 64, 65, for mounting bearing units 27 and 29 provided on the base 35. Four holes 32b through which 65 penetrates, a hole 32c for attaching the damper rubber 51, one hole 32d for draining water, and two holes 32e for attaching a substrate set 70 to be described later are provided. . The base 35 is provided with screw holes at positions corresponding to the four holes 32a, one hole 32c and two holes 32e provided in the waterproof tray 32, and the motor frame 44, the damper rubber 51 and the like are attached thereto. It can be done.

  The light shielding plate 57 is formed of a metal plate whose surface is processed in black and is locked to the sensor boss 58. Further, as shown in FIG. 7, the waterproof tray 32 is provided such that an insertion hole 125 through which the third rotating shaft 22 is inserted covers a part of the protruding portion 126. As described above, the motor 7, the power transmission mechanism, the board set 70, and the like are installed in the waterproof tray 32 and in the space above the waterproof tray 32, but above the height H so that it can be immersed in water. Electrical parts are arranged.

  As shown in FIG. 2, the damper rubber 51 is provided with a through hole 66, and a positioning member 67 is placed in the through hole 66. The upper portion of the positioning member 67 protrudes from a long hole 68 provided in the ratchet stay 25. With this configuration, rattling of the ratchet stay 25 around the third rotation shaft 22 is allowed, and the ratchet pawl 21 and the ratchet gear 16 are firmly engaged with each other. That is, since the ratchet pawl 21 is pulled by the ratchet spring 23 in the direction in which the motor 7 is disposed, the tip of the ratchet pawl 21 and the outermost periphery of the ratchet stay 25 are opposite to each other when viewed from the third rotating shaft 22. Accordingly, the ratchet pawl 21 and the ratchet gear 16 are firmly meshed with each other.

  The board set 70 includes two control circuit boards 71, 72, four spacers 73 that keep the distance between the two control circuit boards 71, 72, a board bracket 75 having a mounting portion 74 attached to the waterproof tray 32, and both boards. And a substrate cover 76 covering 71 and 72. Both substrates 71 and 72 are installed vertically so that they can be easily dried even if rainwater or the like is attached.

  The power transmission mechanism from the motor 7 to the third rotating shaft 22 and the board set 70 are arranged in a space surrounded by the waterproof tray 32 and an internal space of the main cover 77 arranged so as to be thereabove. Covered by the main cover 77. In addition to the waterproof tray 32 portion, the main cover 77 is screwed (not shown) on the pedestal 35 so as to cover a wiring hole 78 (see FIG. 2) provided in the pedestal 35 for inserting the wiring to the motor 7 and the like. (Omitted). It should be noted that the electrical parts such as the motor 7, the light shielding plate set 56, the board set 70, etc. are arranged at a high position that is higher than the height H of the waterproof tray 32. Accordingly, even if water enters the waterproof tray 32 or even when water reaches the height H of the waterproof tray 32, it is electrically safe.

  8A and 8B are views showing the first gear 11 and the ratchet cam 19 used in the lock plate driving mechanism 3 in FIG. 2, wherein FIG. 8A is a front view and FIG. 8B is a direction indicated by an arrow B in FIG. It is the side view seen from. FIG. 9 is a front view of the link 14 used in the lock plate driving mechanism 3 of FIG. FIG. 10 is a view showing the ratchet gear 16 used in the lock plate drive mechanism 3 of FIG. 2, (A) is a front view, and (B) is a side view seen from the arrow B direction of (A). is there.

  The first gear 11 attached to the second rotating shaft 12 is fixed so as to rotate integrally with the second rotating shaft 12. That is, a key (not shown) is fitted in the key groove 80 of the second rotating shaft 12 and the key groove 81 provided in the first gear 11 and the ratchet cam 19. The first gear 11 and the ratchet cam 19 are integrated with a plurality of pins 82.

  In addition to the keyway 81, the ratchet cam 19 has a lever contact surface 83 with which the ratchet lever 20 contacts, and an inclined surface 84 that is symmetrically disposed so as to form a mountain shape together with the lever contact surface 83. A through hole 85 through which the second rotating shaft 12 passes is formed.

  As shown in FIGS. 2 and 9, the link 14 is fitted with a locking shaft 13 of the first gear 11 in addition to the elongated hole 15 with which the engaging shaft 17 is engaged, and the locking shaft 13 is a fulcrum. A locking hole 86 is provided in which the link 14 is rotatable. The long hole 15 includes a start end portion 87 provided so that the lock plate 2 can be slightly opened following the height of the vehicle bottom, a pressing portion 88 that presses the engagement shaft 17, and a ratchet claw. When the lock plate 2 is no longer locked due to breakage of the lock plate 21 or the like, an arc-shaped escape portion 89 that allows the lock plate 2 to be operated in the closing direction is provided. It should be noted that the link 14 is bent as a whole with an angle α (162 degrees in this embodiment).

  The ratchet gear 16 is provided with an engagement shaft 17 and a spring contact shaft 31, which are formed from a single shaft 90 as shown in FIG. 10. In the ratchet gear 16, a ratchet tooth portion 91 into which the ratchet pawl 21 is fitted, a key groove 92 into which a key is inserted so as to rotate integrally with the third rotating shaft 22, and a through hole 93 through which the third rotating shaft 22 passes. And two bolt holes 94, 94 into which bolts for fixing the ratchet gear 16 to the third rotating shaft 22 are fitted. The ratchet gear portion 91 of the ratchet gear 16 is provided not in the entire circumference but in a fan shape, and in this embodiment, the installation angle β is 72 degrees. Further, the angle γ1 between the tooth tips 97 into which the tooth tips 97 (see FIG. 11) of the ratchet claw 21 enter is 60 degrees. In addition, each tooth surface of the ratchet tooth portion 91 is induction-hardened.

  FIG. 11 is a view showing the ratchet pawl 21 used in the lock plate driving mechanism 3 of FIG. 2, (A) is a front view, and (B) is a top view seen from the arrow B direction of (A). is there. 12 is a view showing the ratchet shaft 24 used in the lock plate driving mechanism 3 of FIG. 2, (A) is a front view, and (B) is a side view as seen from the direction of arrow B in (A). is there. FIG. 13 is a view showing the ratchet stay 25 used in the lock plate drive mechanism 3 of FIG. 2, (A) is a front view, and (B) is a top view seen from the direction of arrow B in (A). is there. FIG. 14 is a perspective view showing a ratchet mechanism portion of the lock plate driving mechanism 3 of FIG.

  As shown in FIG. 11, the ratchet pawl 21 that meshes with the ratchet gear 16 has a support hole 95 through which the ratchet shaft 24 passes, and two screw holes 96, 96 for screwing the ratchet lever 20 to the upper part thereof. is doing. The ratchet pawl 21 is rotatably held by the ratchet shaft 24. On the other hand, the ratchet shaft 24 is rotatably held by the ratchet stay 25. The angle γ2 of the tooth tip 97 of the ratchet claw 21 is the same as the angle γ1. That is, in this embodiment, the angle is 60 degrees.

  If the angle γ2 is smaller than the angle γ1, the tooth tip 97 is likely to be broken, and damage due to overload when an illegal escape action is performed can be generated in the ratchet claw 21 for repair. It becomes easy to do. In this embodiment, the set angle θ of the tooth tip 97 is set to 90 degrees, and the tooth tip 97 is hardened by induction hardening.

  As shown in FIG. 12, the ratchet shaft 24 is subjected to quenching and tempering processing, and has small diameter portions 101 and 101 whose diameters are narrowed at both ends. For this reason, when an overload is applied, a force having a predetermined magnitude can be maintained as it is, and when the predetermined force is exceeded, the portion is broken sharply. In terms of strength, the ratchet shaft 24 is first bent, and the ratchet pawl tooth tip 97 is then bent. On the insertion side of the ratchet shaft 24, a locking groove 103 into which the retaining ring 102 is fitted is provided, and on the other end side, a contact portion that hits the ratchet claw 21 when inserted into the support hole 95 of the ratchet claw 21 is provided. 104 is provided.

  A through hole 105 into which a lead wire is inserted is provided at the center of the ratchet shaft 24. The lead wire inserted into the through hole 105 is provided to electrically detect the breakage by being cut when the ratchet shaft 24 is broken. By this detection, the control unit 5 of the parking management device 1 notifies the person of the breakage by a position and a display that can be understood only by an administrator or a maintenance person of the parking management device 1. In this embodiment, a ground wire taken out from the control circuit boards 71 and 72 is used as the lead wire.

  As shown in FIGS. 2 and 13, the ratchet stay 25 mainly includes two arm portions 106 and 106 and a placement portion 107 placed on the damper rubber 51. In each arm portion 106, a key groove 108 into which a key (not shown) is inserted so as to rotate integrally with the ratchet gear 16, a support hole 109 through which the ratchet shaft 24 is inserted and supported, and a third rotating shaft An insertion hole 110 through which 22 is inserted is provided.

  The ratchet stay 25 is provided with a free space 111 in which the ratchet pawl 21 can freely move as the ratchet gear 16 rotates when the ratchet shaft 24 is bent. For example, when a screw or the like is provided in the free space 111, the broken ratchet pawl 21 comes into contact with the screw and prevents the ratchet gear 16 from rotating. For this reason, in this embodiment, the free space 111 is not provided with a threaded portion, and the positioning member 67 for attaching the ratchet stay 25 is provided outside the free space 111. A long hole 68 for attachment is provided.

  FIG. 15 is a plan view of the back surface of the lock plate 2 used in the parking management device 1 of FIG. FIG. 16 is an exploded perspective view of the engaged member 112 in FIG. 17 is a view showing the configuration of the engagement plate 121 in FIG. 16, (A) is a plan view thereof, and (B) is a view seen from the direction of arrow C in (A). 18 is a view of the lock plate 2 in FIG. 15 as viewed from the direction indicated by the arrow D. FIG. 19 is an enlarged view of a portion surrounded by an alternate long and short dash line E in FIG. 20 is a perspective view of the reinforcing member 114 in FIG. FIG. 21 is an enlarged view of the portion surrounded by the alternate long and short dash line F in FIG. 18, and shows a state where the engagement insertion portion 28 is inserted into the engagement hole 41. FIG. 22 is a view for explaining the engagement relationship between the engagement insertion portion 28 and the engagement hole 41 when the lock plate 2 is lifted. FIG. 22A shows a state before the lock plate 2 is lifted. It is a figure shown, (B) is a figure which shows the state after raising the lock board 2. FIG.

  As shown in FIG. 15 and the like, the lock plate 2 includes a fourth rotating shaft 26, an engaged member 112, a fin portion 113 formed from a single flat striped steel plate, a reinforcing member 114, and a reinforcing pipe. 115 and a side plate 116 constituting the side surface on the other end side.

  As shown in FIG. 16, the engaged member 112 includes a driven plate 40 and a square portion 118. The driven plate 40 is bent at an angle of about 45 degrees from the one end 40a side of the long flat plate toward the side where the square portion 118 is disposed. Further, the end face of the lower right corner 119 of FIG. 16 in the driven plate 40 is formed in a curved surface shape. In the present embodiment, the curved surface is formed in an arc shape having a radius R of 17 mm, but the value of the radius R is not limited to 17 mm. An engagement hole 41 is provided near the corner 119 of the driven plate 40. Moreover, the upper end surface 40b which becomes the upper part in FIG. 16 of the driven plate 40 is formed in a tapered shape such that the height decreases from the side where the engagement hole 41 is provided toward the one end side 40a. .

  As shown in FIG. 16, the square portion 118 is formed, for example, by stacking five substantially flat engagement plates 121. As shown in FIG. 17, the engagement plate 121 has two step portions, a first step portion 122 and a second step portion 123, at both upper corners in FIG. The upper end surface 125 of the engagement plate 121 has a horizontal horizontal surface 125a and a tapered inclined surface 125b inclined obliquely downward toward the left in FIG. Further, the end face of the lower right corner 127 in FIG. 17A of the engagement plate 121 is formed in a curved surface. In the present embodiment, the curved surface is formed in an arc shape having a radius R of 17 mm as in the case of the driven plate 40, but the value of the radius R is not limited to 17 mm.

  Further, in the vicinity of the corner portion 127 of the engagement plate 121, an engagement hole having the same shape as the engagement hole 41 provided in the driven plate 40 (hereinafter also referred to as “engagement hole 41”). Is provided. The shape of each engagement hole 41 is a point 41e, 41f that faces diagonally in the oval shape with the center point 41c, 41d positioned substantially at the center of each of the linear opposing sides 41a, 41b forming the oval shape. Are respectively bulged up to points 41g and 41h in the clockwise direction in FIG. 17 (A). That is, it has a form in which two regions facing each other in a circular shape are cut out in a substantially V shape having a large angle from the radially outer side to the radially inner side. For this reason, the engagement hole 41 has four contact portions 42 a, 42 b, 42 c, 42 d that contact the engagement insertion portion 28.

  In the present embodiment, the lengths of the contact portions 42a and 42c are the same, but are smaller than the distance from the central point 41c to the point 41e and the distance from the central point 41d to the point 41f, respectively. ing. Further, the angles φ and δ obtained by expanding each of the points 41e and 41f in the clockwise direction are different from 25 degrees and 22 degrees, respectively. These configurations are designed to reduce the size of the lock plate 2 while maintaining the strength of the engagement plate 121. For example, the angle δ may be the same as the angle φ, but if the angle δ is 25 degrees, the strength of the engagement plate 121, that is, the strength of the lower right corner in FIG. is there. In the following description, a portion that swells at an angle φ is a play gap S1, and a portion that swells at an angle δ is a play gap S2. Also, as shown in FIGS. 17A and 17B, a columnar recess is formed on the right side of the engagement hole 41 in the engagement plate 121 from the front side to the back side in FIG. Two circular recesses 129 are provided so as to be lined up and down. Further, in the engagement plate 121, on the surface opposite to the side where the circular concave portion 129 is provided, two circular convex portions 130 are located at the back of the paper surface in FIG. 17A from the same position as the position where the circular concave portion 129 is provided. It protrudes toward the side (see FIG. 17B).

  The square portion 118 is formed by laminating so that the circular convex portion 130 provided on the engaging plate 121 fits into the circular concave portion 129 provided on the adjacent engaging plate 121. The engagement plates 121 are stacked by press contact. Further, in a state where the five engagement plates 121 are laminated, the first step portion 122 and the second step portion 123 of each engagement plate 121 are welded, and the respective engagement portions 121 are integrated and each engagement portion 121 is integrated. The plywood 121 is fixed so as not to leave (see FIG. 15). Further, the driven plate 40 is provided with a circular convex portion (not shown) having the same shape as the engaging plate 121 at a position corresponding to the circular concave portion 129 of the engaging plate 121. Therefore, the driven plate 40 and the square portion 118 are integrated and fixed to each other by fitting a circular convex portion (not shown) of the driven plate 40 into the circular concave portion 129 of the engaging plate 121 adjacent to the driven plate 40. The In addition, the driven plate 40 and the square portion 118 are fixed by welding the upper end surface 125 of the engaging plate 121 and the upper end surface 40b of the engaged plate 40 arranged on the driven plate 40 side. Yes. The five engagement plates 121 and the driven plate 40 are stacked with the outer edges of the engagement holes 41 being combined. Further, the engagement plate 121 and the driven plate 40 are laminated so that the side end surface 132a and the lower end surface 132b of each engagement plate 121 and the side end surface 40c and the lower end surface 40d of the driven plate 40 are flush with each other. ing.

  The fin portion 113 has a trapezoidal overall planar shape. As shown in FIG. 18, the fin portion 113 has a fourth rotating shaft 26 side (hereinafter referred to as “root side”) bent about 90 degrees along the outer shape of the shaft 26, and an opening / closing operation front end portion. The side (hereinafter referred to as “tip side”) is bent in a substantially arc shape. Further, in a state where the root side and the tip end side are bent, the fin portion 113 has a substantially trapezoidal shape in which left and right corners on the tip end side in FIG. 15 are cut out at an angle of 45 degrees from the tip end side toward the root side. have.

  The engaged member 112 is fixed to the back side of the fin portion 113 by welding so that the left side surface of the driven plate 40 in FIG. 15 substantially coincides with the left end surface of the fin portion 113. Welding is performed at a plurality of locations 134 where the lower end surface 40 d of the driven plate 40 is in contact with the back surface of the fin portion 113 and at a location 137 where the first step portion 122 of the engagement plate 121 is in contact with a bent portion on the root side of the fin portion 113. Done. Further, in the position adjacent to the right side of the square portion 118 in FIG. 15, the fourth rotation shaft 26 is disposed along the longitudinal direction of the fin portion 113. The fourth rotating shaft 26 is in contact with the inner peripheral surface of a portion where a part of the outer peripheral surface is bent on the base side of the fin portion 113. A portion bent on the base side of the fin portion 113 and the fourth rotation shaft 26 are fixed by welding at a plurality of locations 135. Further, the left end surface of the fourth rotating shaft 26 in FIG. 15 is in contact with the right end surface of the square portion 118. The 4th rotating shaft 26 and the square part 118 are being fixed by the welding in the said contact location 136. FIG. A side plate 116 symmetric to the driven plate 40 is attached to the back side of the right end of the fin portion 113 in FIG. In the side plate 116, a circular hole (not shown) having the same diameter as the outer diameter of the fourth rotation shaft 26 is provided at a position corresponding to the fourth rotation shaft 26. The side plate 116 is attached to the back side of the fin portion 113 in a state in which a portion protruding rightward in FIG. 15 from the fin portion 113 of the fourth rotating shaft 26 is inserted into the circular hole (not shown). The side plate 116 and the fin portion 113 are fixed by welding at a plurality of locations 138. Further, a portion 140 where the circular hole (not shown) and the fourth rotating shaft 26 contact is also fixed by welding. Note that the upper end portions 141a and 141b of the driven plate 40 and the side plate 116 in FIG. 15 are covered with bent portions on the tip end side.

  As shown in FIG. 19, a reinforcing pipe 115 of a square steel pipe is arranged inside the bent portion on the tip end side of the fin portion 113 and is in contact with the tip of the bent portion of the fin portion 113. A plurality (three in this embodiment) of reinforcing members 114 are disposed between the reinforcing pipe 115 and the fourth rotating shaft 26. As shown in FIG. 20, each reinforcing member 114 has a form in which a flat steel plate is bent into a hat shape. Specifically, the reinforcing member 114 includes a flat plate-like upper plate portion 114a, side plate portions 114b bent so as to face substantially vertically downward from both ends thereof, and outwards in a substantially perpendicular direction from both ends of the side plate portion 114b. It consists of a bent flange 114c. In a state in which the reinforcing member 114 is disposed between the reinforcing pipe 115 and the fourth rotating shaft 26, one of the two front and rear end surfaces 114d of the reinforcing member 114 in FIG. 20 is in contact with the side surface 115a of the pipe 15 (see FIG. 19), the other end surface 114 d is in contact with the outer peripheral surface of the fourth rotating shaft 26.

  The region where the reinforcing pipe 115 is in contact with the tip of the bent portion of the fin portion 113 and is not in contact with the reinforcing member 114 is fixed at a plurality of locations 142 by welding. Further, the portion where the reinforcing pipe 115 contacts both the tip of the bent portion of the fin portion 113 and the reinforcing member 114 is fixed by welding at a plurality of locations 144 (see FIGS. 15 and 19). In this case, three portions of the bending pipes of the reinforcing pipe 115 and the fin portion 113 and the end surface 114 d of the reinforcing member 114 are fixed at the welded portion 144. The end surface 114d of the reinforcing member 114 and the outer peripheral surface of the fourth rotating shaft 26 are fixed at a plurality of locations 148 by welding. Furthermore, the fin part 113 and the 4th rotating shaft 26 are being fixed by welding in the some location 150 where both contact. The reinforcing member 114 is disposed so that the back surface of the flange portion 114 c contacts the back side of the fin portion 113. And the fin part 113 and the collar part 114c are being fixed by welding in this contact location 152. FIG.

  As shown in FIG. 21, the diameter R <b> 2 when the arcs in the engagement holes 41 are connected circumferentially is formed slightly larger than the inner diameter R <b> 1 of the fourth rotating shaft 26. Therefore, as shown in FIG. 21, the driven plate 40 is placed on the end surface of the fourth rotation shaft 26 so that the inner circumference of the fourth rotation shaft 26 and the arc on the bent portion side of the fin portion 113 in the engagement hole 41 are aligned. In the case where the engagement hole 41 is disposed so as to be in contact with the circular arc portion in the vicinity of the tip end side (left side in FIG. 21), the end surface of the fourth rotation shaft 26 is closed. Therefore, in a state where the engagement insertion portion 28 is inserted so as to coincide with the center axis of the fourth rotation shaft 26, the center P of the third rotation shaft 22 (engagement insertion portion 28) and the center of the engagement hole 41. Q does not match. Specifically, the center Q of the engagement hole 41 is slightly shifted from the center P of the third rotating shaft 22 (= the center of the fourth rotating shaft 26) toward the tip end side of the fin portion 113. As will be described later, the engaging insertion portion 28 enters only the engaging hole 41 and does not enter the fourth rotating shaft 26. In the present embodiment, the size of the engagement hole 41 is restricted for the purpose of improving the strength. For this reason, compared with the case where the magnitude | size of the whole diameter of the engagement hole 41 is made to correspond with the magnitude | size of the internal diameter of the 4th rotating shaft 26, the diameter of the engagement hole 41 is 4th like this Embodiment. If the diameter is slightly larger than the inner diameter of the rotation shaft 26, the size of one arc of the engagement hole 41 can be made larger.

  In the present embodiment, a predetermined clearance is provided between the engagement insertion portion 28 and the engagement hole 41. The size of this clearance is preferably adjusted as appropriate according to the design. As shown in FIG. 22A, when the lock plate 2 is in a closed state, that is, the upper arc portion in FIG. 22A of the engagement insertion portion 28 is the upper arc portion of the engagement hole 41. When in contact, a clearance J <b> 1 is formed between the arc portion below the engagement insertion portion 28 in FIG. 22A and the arc portion below the engagement hole 41. The size of the clearance J1 is the same as that of the outer peripheral surface of the engagement insertion portion 28 when it is inserted into the engagement hole 41 so that the center P of the engagement insertion portion 28 coincides with the center axis P of the fourth rotation shaft 26. It is about twice as large as the clearance formed between the contact portions 42a, 42b, 42c, and 42d of the engagement hole 41 and between the arc portions. In this state, the two corners 28 a and 28 b of the engagement insertion portion 28 are in contact with contact portions 42 a and 42 c that are inner peripheral surfaces of the engagement holes 41. In this state, a gap larger than the play gaps S <b> 1 and S <b> 2 is formed between the engagement insertion portion 28 and the engagement hole 41. From this state, when the lock plate 2 is lifted in the arrow T direction using a human hand or the like, first, the center point 41 c comes into contact with the outer peripheral surface of the engagement insertion portion 28. Then, the lock plate 2 rotates in the arrow T direction around the center point 41c. When the lock plate 2 continues to be lifted, the center point 41 c moves away from the outer peripheral surface of the engagement insertion portion 28, and the two corner portions 28 c and 28 d of the engagement insertion portion 28 come into contact with the inner peripheral surface of the engagement hole 41. The state shown in FIG. As described above, in the present embodiment, the angle φ of the play gap S1 and the angle δ of the play gap S2 are 25 degrees and 22 degrees, respectively. Here, when no clearance is provided between the engagement insertion portion 28 and the engagement hole 41, even if the lock plate 2 is lifted, the lock plate 2 rotates only 22 degrees in the arrow T direction. However, in the present embodiment, a clearance is provided between the engagement insertion portion 28 and the engagement hole 41 in addition to the play gaps S1 and S2. Therefore, in the above-described lifting operation, the engagement insertion portion The backlash in the circumferential direction at the engaging portion between the engaging hole 28 and the engaging hole 41 can be an angle exceeding the angle δ. In this embodiment, it is about 25 degrees. Therefore, by setting the angle φ of the play gap S1 on the distal end side, which is not limited in size, to be larger than the angle δ of the play gap S2, and taking the clearance, the play angle in the circumferential direction at the engagement portion can be further increased.

  Since the lock plate 2 has a shape in which the left and right corners on the tip end side in FIG. 15 are cut out at an angle of 45 degrees, compared to the case of a rectangular flat plate, in the opening and closing operation of the lock plate 2 Safety is improved. Further, since the side of the lock plate 2 is blocked by the driven plate 40 and the side plate 116, the design in appearance is improved.

  In the normal closed state, the lock plate 2 is inclined obliquely downward and is in contact with the base portion 35. Further, since the play gaps S1 and S2 are provided between the third rotating shaft 22 and the engaged member 112, the hand or foot is located between the base portion 35 and the lock plate 2 when it is in a closed state. Even if it is sandwiched between the two, it can be easily detached by lifting the lock plate 2 as shown in FIG. Note that when the lock plate 2 is in a horizontal state, the cushion rubber may be disposed between the base portion 35 and the lock plate 2.

  Further, when it is desired to replace the lock plate 2, it is performed as follows. First, the side cover 39 is removed. Next, the bearing unit 38 is removed, and the lock plate 2 is pulled out. The lock plate 2 is removed from the lock plate base set 34 by such an extremely simple operation. On the other hand, when a new lock plate 2 is attached, the lock plate 2 is attached by an operation reverse to the removal operation.

  Next, operation | movement of the parking management apparatus 1 comprised in this way is demonstrated.

  FIG. 23 is a diagram for explaining the operation of the link mechanism and the ratchet mechanism of the parking management device 1, and is a diagram showing a state when the lock plate 2 is in the lower limit position (closed state). FIG. 24 is a diagram for explaining the operation of the link mechanism and the ratchet mechanism of the parking management device 1, and shows a state in which the lock plate 2 is in contact with the bottom of the vehicle in the opening operation. FIG. 25 is a diagram for explaining the operation of the link mechanism and the ratchet mechanism of the parking management device 1, and is a diagram showing a state when the first gear 11 comes to the upper limit position and stops. FIG. 26 is a diagram for explaining the operation of the link mechanism and the ratchet mechanism of the parking management device 1, and shows a state in which a certain amount of time has elapsed after the lock plate 2 comes into contact with the bottom of the vehicle in the closing operation. It is. FIG. 27 is a view for explaining the operation of the link mechanism and the ratchet mechanism of the parking management device 1, and is a view showing a state immediately after the lock plate 2 sandwiches a human hand or foot. FIG. 28 is a diagram for explaining the operation of the link mechanism and the ratchet mechanism of the parking management device 1, and shows a state in which a certain amount of time has passed after the lock plate 2 sandwiches a person's hand or foot. .

  When the vehicle enters the parking lot, the vehicle detector 4 comprising a loop sensor detects the vehicle. The time measurement is started by the detection. Then, after a predetermined time, for example, about 4 seconds, the vehicle recognition lamp provided in the columnar control unit 6 blinks for about 15 seconds and then disappears. On the other hand, after a predetermined time from the first vehicle detection, for example, about 30 seconds, the detection circuit is activated again to detect the presence of the vehicle. As described above, the vehicle detector 4 including a loop sensor constantly detects the vehicle at a predetermined time, for example, at an interval of about 30 seconds, and confirms the entry of the vehicle by two consecutive vehicle detections. And if a vehicle is detected twice continuously, the motor 7 will operate | move with the signal from the control part 6, and will drive the lock plate 2 to an opening direction. Simultaneously with the operation, the basic charge is displayed on the charge display window provided in the columnar control unit 6.

  When a service time is set in the parking management device 1 when the vehicle enters the parking lot, the vehicle recognition lamp blinks for a predetermined time, for example, about 15 seconds, and then turns on. Further, unless the vehicle detection signal is generated twice in succession, the lock plate driving mechanism 3 tries to drive the lock plate 2 in the closing direction a predetermined number of times until the lock plate 2 reaches the lower limit position.

  When the vehicle enters the parking lot, the lock plate 2 is inclined obliquely downward and abuts against the pedestal 35 as shown in FIG. That is, the lock plate 2 is in a closed state. In this state, due to the presence of the play gaps S1 and S2, the lock plate 2 is in contact with the pedestal 35 by its gravity, so as shown in FIG. The lock plate 2 can be pulled up against the gravity.

  When vehicle entry is confirmed and the motor 7 starts to operate, the power of the motor 7 is transmitted to the second rotating shaft 12 while being decelerated via the toothed wheel train of the lock plate drive mechanism 3. Along with the rotation of the second rotation shaft 12, the light shielding plate 57 rotates. That is, the light shielding plate 57 rotates from the position of the lower limit sensor 61 toward the position of the upper limit sensor 60.

  On the other hand, the relationship of the ratchet mechanism when the lock plate 2 is in the closed state is as shown in FIG. 23, and is a drive that always works in the opening direction of the lock plate 2 with respect to the third rotating shaft 22 that drives the lock plate 2. The urging force of the spring 30 is received by the resistance of the toothed wheel train that increases the speed. At this time, the relationship between the engagement shaft 17 of the ratchet gear 16 and the link 14 is such that the force of the ratchet gear 16 is not easily transmitted to the first gear 11. For this reason, the drive spring 30 is most strongly urged in the opening direction when the lock plate 2 is closed, but it sufficiently withstands the strong urging force and keeps the lock plate 2 in the closed state. It is possible. In the closed state, the engagement insertion portion 28 is in contact with the contact portions 42a and 42c of the engagement hole 41 as shown in FIG.

  Then, when the motor 7 starts operating, the first gear 11 moves in the direction of arrow A in FIG. As the operation of the first gear 11 starts, the ratchet cam 19 also starts to rotate in the direction of arrow A. When the ratchet cam 19 rotates in the direction indicated by the arrow A, the locking shaft 13 is driven leftward in FIG. Then, as shown in FIG. 24, the ratchet gear 16 rotates in the arrow B direction following the movement. This is because the ratchet gear 16 constantly receives the urging force in the direction indicated by the arrow B from the drive spring 30.

  Here, if the lock plate 2 hits a portion having a low vehicle height, the movement of the lock plate 2 stops at the position shown in FIG. On the other hand, the first gear 11 and the ratchet cam 19 further continue to rotate in the direction of arrow A in response to the rotation of the motor 7. Then, as shown in FIG. 25, when the ratchet lever 20 comes to a position where it completely contacts the lever contact surface 83 of the ratchet cam 19, the tooth tip 97 of the ratchet pawl 21 is a view of the ratchet tooth portion 91 of the ratchet gear 16. At 25, the rightmost tooth space is entered. Even in this state, the engagement insertion portion 28 is in contact with the contact portions 42 a and 42 c of the engagement hole 41.

  Simultaneously with this meshing, the rotation of the motor 7 stops. The contact position is detected, that is, the rotation of the motor 7 is stopped when the upper limit sensor 60 detects the light shielding plate 57. Note that the rotation of the motor 7 is extremely smooth because it does not receive a load from the outside.

  When the rotation of the motor 7 is stopped, the first gear 11 and the ratchet cam 19 are locked at their positions by the gear train that increases the speed. After that, when the vehicle moves slightly and the lock plate 2 faces a portion where the vehicle height is high, the third rotating shaft 22 moves in the opening direction by the action of the drive spring 30, and the lock plate 2 rises according to the movement. To go.

  As a result of this operation, there is no gap between the lock plate 2 and the bottom of the vehicle. For this reason, the driver of the parked vehicle does not have the feeling of forcibly leaving the vehicle from the parking place, and the parking management device 1 functions sufficiently. Thus, by leaving the lock plate 2 in the open state, the vehicle that has entered the vehicle is prevented from leaving.

  Then, when the basic time elapses, the amount obtained by adding the additional fee is displayed in the fee display window. Each time unit and each charge unit of the basic time, basic charge, additional time, and additional charge can be freely set according to the purpose. When a coin is inserted into a coin slot provided in the columnar control unit 6, it is detected by the detection function of the control unit in the control unit 6, and the coin amount is subtracted from the amount of the charge display window. When the display fee becomes zero, a signal is output from the control unit 6, the motor 7 is operated, and the lock plate 2 is driven in the closing direction.

  At this time, the power of the motor 7 is decelerated through the toothed wheel train of the lock plate driving mechanism 3 and transmitted to the ratchet cam 19, and the ratchet cam 19 rotates in the direction indicated by the arrow C shown in FIG. Then, the ratchet lever 20 is pushed up by the ratchet cam 19 in the direction of arrow E in FIG. 25, and the ratchet pawl 21 is released from the ratchet gear 16. As a result, the ratchet gear 16 can rotate and the lock plate 2 can also be driven in the closing direction. However, since the pressing portion 88 of the link 14 has not yet come into contact with the engagement shaft 17, the lock plate 2 remains in a state where it remains attached to the bottom of the vehicle for a while.

  When the lock plate 2 is in the open state, the link mechanism is configured such that the rotational force of the first gear 11 is easily transmitted to the ratchet gear 16 via the link 14. That is, as shown in FIG. 24, the angle formed by the line connecting the locking shaft 13 and the engagement shaft 17 and the line connecting the rotation fulcrum of the ratchet gear 16 and the engagement shaft 17 is an angle close to 90 degrees. Thus, the lock plate 2 can be efficiently moved in the closing direction.

  Thereafter, when the state shown in FIG. 24 is reached, the pressing portion 88 of the elongated hole 15 comes into contact with the engagement shaft 17 and pushes the ratchet gear 16 in the direction indicated by the arrow D in FIG. As a result, the lock plate 2 closes against the urging force of the drive spring 30. And the lock plate 2 will be in the closed state shown in FIG.

  If the state shown in FIG. 24 is reached in the middle of the closing operation, for example, it is assumed that the lock plate 2 hits the muffler or the like of the vehicle about to escape from the parking management device 1. In this case, since the closing operation is being performed, the ratchet cam 19 rotates in the direction of arrow C shown in FIG. Then, the pressing portion 88 of the elongated hole 15 pushes the engagement shaft 17 in the right direction in FIG. 24, and the ratchet gear 16 moves in the direction indicated by the arrow D in FIG. Accordingly, the third rotating shaft 22 also rotates in the direction indicated by the arrow F in FIG. Then, the engaging insertion portion 28 of the third rotating shaft 22 comes into contact with the contact portions 42b and 42d of the engaging hole 41 as shown in FIG. That is, the lock plate 2 rotates in the direction indicated by the arrow G in FIG. 26 or allows the ratchet gear 16 to open in the direction indicated by the arrow D while maintaining the state shown in FIG. become

  In the state of FIG. 26, the pressing portion 88 of the elongated hole 15 presses the engagement shaft 17 in the direction indicated by the arrow G in FIG. This arrow G direction is an angle close to a right angle with respect to the standing direction of the lock plate 2. In this case, the angle formed by the line connecting the locking shaft 13 and the engagement shaft 17 and the line connecting the rotation fulcrum of the ratchet gear 16 and the engagement shaft 17 is an angle closer to 90 degrees compared to FIG. Compared with the case of the state of FIG. 24, the lock plate 2 can be operated in the closing direction more efficiently. Thus, since the play gaps S1 and S2 are formed in the engaged state of the engagement hole 41 and the engagement insertion portion 28, when the lock plate 2 hits the bottom of the vehicle in the closing operation of the lock plate 2, This is advantageous for the closing operation of the lock plate 2. Therefore, as long as the lock plate 2 is slightly caught on the bottom of the vehicle, the lock plate 2 continues the closing operation and enters the closed state as shown in FIG. Further, since the front end portion side of the lock plate 2 is bent in an R shape, the lock plate 2 is configured to be easily in line contact with the bottom of the vehicle instead of being in surface contact. Accordingly, when the lock plate 2 comes into contact with the bottom of the vehicle, the closing operation of the locking plate 2 is not completely blocked and the closing operation is easily continued. In other words, the R-shaped bending works favorably for the closing operation of the lock plate 2.

  In the vicinity of the closing, the transmission efficiency from the first gear 11 is deteriorated, the transmitted force is reduced, and the displacement is reduced. For this reason, in the vicinity of closing, the lock plate 2 operates at a low speed and a low torque.

  Even when a human foot or the like is sandwiched between the lock plate 2 and the base 35 during the closing operation shown in FIG. 27, the third rotating shaft 22 still rotates in the direction indicated by the arrow F in FIG. . However, since the play gaps S1 and S2 are formed in the engaged state between the engagement hole 41 and the engagement insertion portion 28, the engagement insertion portion 28 does not immediately push down the lock plate 2. That is, as in the state of FIG. 28, the engagement insertion portion 28 rotates until it makes contact with the contact portions 42 b and 42 d of the engagement hole 41 while maintaining the state of the lock plate 2. This is because the lock plate 2 has a margin to be lifted in the opening direction from the closed position by the amount of play that the engagement insertion portion 28 has in the circumferential direction by the play gaps S1 and S2. The magnitude of the height K at which the lock plate 2 is lifted in the opening direction from the closed position can be adjusted as appropriate for design reasons.

  When a thing larger than the dimension of this height K is pinched, after the engagement insertion part 28 contacts the contact parts 42b and 42d of the engagement hole 41, it is further pressed down by the lock plate 2. On the other hand, when a thing smaller than the dimension of the height K is caught, it is not pressed down by the lock plate 2 due to a margin of play. For this reason, even if a hand or foot of a child or the like is sandwiched between the lock plate 2 and the base portion 35, no serious injury will occur. In this embodiment, the closed position, that is, the lower limit position is set when the lock plate 2 comes into contact with the base portion 35. Here, the lower limit position is detected when the light shielding plate 57 returns to the lower limit sensor 61 side and is detected.

  When the lock plate 2 reaches the lower limit of the closed state, the motor 7 is turned off by the signal obtained by the lower limit sensor 61, and the position is maintained after the lock plate 2 is closed. In this way, by closing the lock plate 2, it is possible to leave the stored vehicle. Since the motor 7 is not provided with an electromagnetic brake, when the lock plate 2 is pulled from the closed direction to the open direction with a very strong force exceeding the resistance of the toothed wheel train, the lock plate 2 gradually moves in the open direction. Go. For this reason, it is possible to confirm whether or not the ratchet mechanism operates by manually moving the lock plate 2 and then applying a load to the lock plate 2. In addition, you may make it add an electromagnetic brake similarly to the past.

  In addition to the normal loading / unloading as described above, abnormal loading / unloading may be performed. For example, there is a case where a vehicle that has entered the company intends to leave the vehicle without paying a fee. In this case, the lock plate 2 receives the force in the opening direction. At this time, the lock plate 2 smoothly moves to the upper limit position in the opening direction due to the presence of the play gaps S1 and S2. When a force is further applied to the lock plate 2, the lock plate 2 bends. Thereafter, when the vehicle gets over the lock plate 2, both the reaction force of the deflection and the load of the vehicle are suddenly applied to the lock plate 2.

  At this time, the rotation of the lock plate 2 is transmitted to the third rotating shaft 22 and transmitted to the ratchet gear 16. Then, a load is applied to the ratchet pawl 21 meshing with the ratchet gear 16 and the ratchet stay 25 supporting the ratchet pawl 21 is moved downward. That is, the ratchet stay 25 rotates around the third rotation shaft 22 and presses the damper rubber 51. Along with this movement, due to the rattling of the ratchet stay 25, the distance between the fulcrum of the ratchet gear 16 and the fulcrum of the ratchet pawl 21 slightly increases. As a result, even when the engagement is shallow, the ratchet gear 16 and the ratchet pawl 21 are engaged deeply, and the ratchet pawl 21 firmly receives the load applied to the lock plate 2. In addition, if the force is applied while the meshing between the two is so-called, the tooth tip 97 of the ratchet claw 21 is easily broken.

  However, if the receiving force is too large, the lock plate 2 is bent and the third rotating shaft 22 is twisted, resulting in great damage. For this reason, in this embodiment, the small diameter portions 101 and 101 are provided at both ends of the ratchet shaft 24 so that the ratchet shaft 24 is easily broken. For this reason, when an extremely excessive force is applied, the ratchet shaft 24 is damaged first. This breakage leads to the cutting of the ground wire inserted through the ratchet shaft 24, and informs the manager or the like that the parking management device 1 has failed.

  FIG. 29 is a diagram illustrating characteristics of the damper rubber 51 used in the parking management device 1. FIG. 29 shows the relationship between the thickness and the time when the thickness of the damper rubber 51 is decreased by continuously applying the same force.

  The two-step movement of the ratchet gear 16 and the ratchet pawl 21 as described above is performed using the elastic force of the damper rubber 51 placed below the ratchet stay 25. The damper rubber 51 has characteristics as shown in FIG. That is, when a constant force is applied at the time t1, the initial thickness H1 is rapidly reduced, and the thickness H2 is obtained at the time t2. After that, the thickness hardly changes, and it becomes a kind of steel body. Since the damper rubber 51 has such characteristics, first, the ratchet gear 16 and the ratchet pawl 21 are deeply engaged, and thereafter, the force received by the ratchet pawl 21 is received in the form of a steel body. In this embodiment, the damper rubber 51 has a characteristic that starts to stagnate when a load of about 200 kg is applied to the lock plate 2.

  When the ratchet shaft 24 is broken, there is nothing to receive the load on the lock plate 2, and the lock plate 2 rotates rapidly in the closing direction. At this time, the ratchet gear 16 also rotates simultaneously. This rotation is allowed by the engagement shaft 17 moving in the escape portion 89 of the elongated hole 15.

  Further, when the lock plate 2 starts to move in the opening direction, the vehicle that has once entered may stop parking and suddenly exit. In this case, an extremely large opening force is applied to the lock plate 2 when the accelerated vehicle collides. However, in the lock plate driving mechanism 3, the lock plate 2 is further upright by the play gaps S1 and S2, and the vehicle is difficult to escape. Further, since no force is transmitted to the tooth wheel train, the gears of the tooth wheel train are not damaged. Further, even if the lock plate 2 is damaged, the replacement of the lock plate 2 is extremely simple and can be handled by simple repair and replacement. For this reason, the increase in the repair cost as a whole can be suppressed.

  On the other hand, when a force is further applied in the opening direction when the lock plate 2 is in the open state, first, the lock plate 2 rises further due to the presence of the play gaps S1 and S2. Thereafter, the force applied to the lock plate 2 receives the force at the following three locations. First, the lock plate 2 abuts against the back surface of the lock plate stopper 37, second, the back surface of the lock plate 2 abuts against the end surface of the footrest 36, and third, the engagement shaft 17 presses the link 14 A force in the opening direction is received by striking against the portion 88. Thus, the movement of the lock plate 2 in the further opening direction is prevented by receiving the force in the opening direction in three places. The positional relationship among the link 14, the locking shaft 13, and the engagement shaft 17 is such that it is difficult for the force from the engagement shaft 17 to be converted into the rotational force of the first gear 11. There is almost no damage.

  In this embodiment, even if the ratchet shaft 24 or the ratchet pawl 21 is broken, it operates normally in appearance. That is, the movement in the opening direction and the closing direction of the lock plate 2 which is a normal business operation is performed without any trouble. For this reason, even if the ratchet shaft 24 or the like is damaged, the parking lot business can be continued as it is. The problem is that if you try to escape illegally, it will be easy to do, but this is much less loss than you can't do business. As described above, the failure can be detected only by an administrator or the like, so that the failure can be repaired at an appropriate time zone.

  In the above-described embodiment, the biting phenomenon or the like is avoided by making good use of a link mechanism in which transmission efficiency gradually changes. That is, at the beginning of closing the lock plate 2 against the drive spring 30, the transmission efficiency is increased, the drive plate 30 is rapidly driven in the closing direction and closed with a large torque. In the vicinity of the closing, the transmission efficiency is low, and the lock plate 2 is closed slowly and with a small torque. When the lock plate 2 is opened, on the contrary, it begins to open slowly and with a small torque at first, but since the urging force of the drive spring 30 is applied, it opens slowly and surely.

  Further, in the above-described embodiment, the relationship between the ratchet pawl 21 and the ratchet gear 16 can be relatively rotated in the circumferential direction, so that deep engagement between the ratchet pawl 21 and the ratchet gear 16 is ensured. Made.

  In the parking management device 1 configured as described above, the lock plate 2 rotates integrally with the third rotating shaft 22 with play gaps S1 and S2 in the circumferential direction. For this reason, when the lock plate 2 is closed, the lock plate 2 has a margin for lifting in the opening direction by the play gaps S1 and S2. Therefore, even when a person's hand or foot is sandwiched between the lock plate 2 and the base portion 35, the person's hand or foot is prevented from being injured by the allowance for lifting the lock plate 2 in the opening direction. Therefore, the safety of the parking management device 1 is improved.

  In the parking management device 1, the driven plate 40 and the side plate 116 are disposed on the side of the lock plate 2. Further, the upper end portions 141a and 141b of the driven plate 40 and the side plate 116 that are bent at an angle of 45 degrees are covered with the bent portion on the tip end side. For this reason, the lock plate 2 has a form having side surfaces over the entire circumference. Therefore, the design of the appearance of the lock plate 2 can be improved, and intrusion of dust or the like from the side surface can be prevented.

  In the parking management device 1, the angle φ of the play gap S1 and the angle δ of the play gap S2 are 25 degrees and 22 degrees, respectively. A clearance is provided between the engagement insertion portion 28 and the engagement hole 41. For this reason, the rotation margin in the circumferential direction at the engagement portion between the engagement insertion portion 28 and the engagement hole 41 can be set to an angle exceeding the angle δ. Therefore, the rotation margin in the circumferential direction of the lock plate 2 with respect to the third rotating shaft 22 is set by making the angle φ of the play gap S1 on the tip end side, which is not dimensionally limited, larger than the angle δ of the play gap S2 on the dimension limited side. Can be made larger.

  In the parking management device 1, the square portion 118 has a stacked structure in which the engagement plates 121 provided with the plurality of engagement holes 41 are stacked. For this reason, it becomes easy to manufacture the engaged member 112, and the manufacturing cost can be reduced.

  Further, in the parking management device 1, the play holes S <b> 1 and S <b> 2 are provided in the engagement hole 41. For this reason, in the middle of the closing operation of the lock plate 2, when the lock plate 2 hits a muffler or the like of the vehicle that is about to escape from the parking management device 1, a line connecting the locking shaft 13 and the engagement shaft 17; The angle formed by the line connecting the rotation fulcrum of the ratchet gear 16 and the engagement shaft 17 is about 90 degrees, and the lock plate 2 can be moved efficiently in the closing direction. Further, the front end side of the lock plate 2 is bent in an R shape. For this reason, the lock plate 2 is configured not to be in surface contact with the bottom of the vehicle, but in line contact, and is difficult to bite. Therefore, when the lock plate 2 comes into contact with the bottom of the vehicle in the closing operation, the locking plate 2 works advantageously in the closing operation.

  In the parking management device 1, a reinforcing member 114 is disposed on the back side of the lock plate 2. For this reason, the strength of the lock plate 2 can be improved. Further, since the reinforcing member 114 has a shape bent into a hat shape, the strength of the lock plate 2 can be improved at a low cost while reducing the weight.

  Although one embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and can be implemented in various modifications.

  In the above-described embodiment, the lock plate 2 is operated via the link mechanism. However, all the power from the motor 7 may be transmitted to the lock plate 2 via the gear train mechanism. Further, the power source may be another power source such as a solenoid instead of the motor.

  In the above-described embodiment, the square portion 118 is configured to stack the engagement plates 121. However, the configuration is not limited to the stacked structure. For example, the square portion 118 is integrated using a mold or the like. Alternatively, it may be formed. Further, the square portion 118 is formed by stacking five engagement plates 121, but the number of the engagement plates 121 to be stacked is not limited to five, and may be four or less. 6 or more.

  Moreover, in the above-mentioned embodiment, although the cross-sectional shape of the engagement insertion part 28 is exhibiting oval shape, the cross-sectional shape of the engagement insertion part 28 is not limited to oval shape, For example, FIG. As shown in FIG. 30A, the thickness of the center portion of the oval shape is smoothly reduced in a curved shape from both outer sides to the center side, or it is rectangular as shown in FIG. As shown in (C), it may be a horizontally long hexagon.

  In the above-described embodiment, the engaged member 112 is disposed on the back side of the fin portion 113, but the fourth rotating shaft 24 is not engaged with the engaged member 112. It is good also as a structure which also has the role of 112.

  Moreover, in the above-described embodiment, the shapes of the play gaps S1 and S2 are different, but the play gaps S1 and S2 may have the same shape. In the above-described embodiment, the center P of the third rotating shaft 22 and the center Q of the engagement hole 41 do not coincide with each other, but the center P and the center Q may coincide with each other. Further, the engagement hole 41 may be provided in the third rotating shaft 22 and the engagement insertion portion 28 may be provided in the lock plate 2. In this case, “engagement insertion portion” in the claims means an engagement hole, and “engagement hole” means an engagement insertion portion.

  The parking management device of the present invention is applied to vehicle parking. In particular, it is suitable when installed in a pay parking lot, and can be used more suitably in an unmanned parking lot where there is no manager or a parking lot where the number of vehicles is not provided with no gate at the parking lot entrance.

It is a perspective view which shows the basic composition of the parking management apparatus which concerns on one embodiment of this invention. 1 is an exploded perspective view of a lock plate and a lock plate drive mechanism of a parking management device according to an embodiment of the present invention. FIG. 3 is a perspective view of the lock plate driving mechanism and its surroundings with the main cover in FIG. 2 removed. It is a figure which shows the light-shielding plate in FIG. 2, (A) is a front view, (B) is the side view seen from the arrow B direction of (A). It is a figure which shows the sensor boss | hub in FIG. 2, (A) is AA sectional drawing of (B), (B) is the rear view seen from the arrow B direction of (A). It is a top view which shows the waterproof tray in FIG. It is the side view which looked at the waterproof tray of FIG. 6 from the arrow VII direction. It is a figure which shows the 1st gear and ratchet cam which are used for the lock plate drive mechanism of FIG. 2, (A) is a front view, (B) is a partial cross section seen from the arrow B direction of (A). It is the side view shown in the figure. It is a front view of the link used for the lock plate drive mechanism of FIG. It is a figure which shows the ratchet gear used for the lock plate drive mechanism of FIG. 2, (A) is a front view, (B) is the side view seen from the arrow B direction of (A). It is a figure which shows the ratchet nail | claw used for the lock plate drive mechanism of FIG. 2, (A) is a front view, (B) is the top view seen from the arrow B direction of (A). It is a figure which shows the ratchet axis | shaft used for the lock plate drive mechanism of FIG. 2, (A) is a front view, (B) is the side view seen from the arrow B direction of (A). It is a figure which shows the ratchet stay used for the lock plate drive mechanism of FIG. 2, (A) is a front view, (B) is the top view seen from the arrow B direction of (A). It is a perspective view which shows the ratchet mechanism part of the lock plate drive mechanism of FIG. It is a back surface top view of the lock board used for the parking management apparatus of FIG. It is a disassembled perspective view of the to-be-engaged member in FIG. It is a figure which shows the structure of the engagement board in FIG. 16, (A) is the top view, (B) is the figure seen from the arrow C direction in (A). It is the figure which looked at the lock board in FIG. 15 from the arrow D direction. It is an enlarged view of the part enclosed with the dashed-dotted line E in FIG. It is a perspective view of the reinforcement member in FIG. It is an enlarged view of the part enclosed with the dashed-dotted line F in FIG. 18, and is a figure which shows the state which inserted the engagement insertion part in the engagement hole. It is a figure for demonstrating the engagement relationship of the engagement insertion part at the time of lifting the lock board used for the parking management apparatus of FIG. 1, and an engagement hole, (A) is before lifting a lock board. It is a figure which shows a state, (B) is a figure which shows the state after lifting a lock board. It is a figure for demonstrating operation | movement of the link mechanism and ratchet mechanism of the parking management apparatus of FIG. 1, and is a figure which shows a state when the lock plate has come to the lower limit position (closed state). It is a figure for demonstrating operation | movement of the link mechanism and ratchet mechanism of the parking management apparatus of FIG. 1, and is a figure which shows the state which contact | abutted the bottom of the vehicle in the opening operation | movement. It is a figure for demonstrating operation | movement of the link mechanism and ratchet mechanism of the parking management apparatus of FIG. 1, and is a figure which shows a state when a 1st gear comes to an upper limit position and stops. It is a figure for demonstrating operation | movement of the link mechanism and ratchet mechanism of the parking management apparatus of FIG. 1, and is a figure which shows the state to which some time passed, after the lock plate contact | abutted to the bottom of the vehicle in closing operation | movement. It is a figure for demonstrating operation | movement of the link mechanism of the parking management apparatus of FIG. 1, and a ratchet mechanism, and is a figure which shows the state immediately after a lock plate pinched | interposed the person's hand and leg. It is a figure for demonstrating operation | movement of the link mechanism of the parking management apparatus of FIG. 1, and a ratchet mechanism, and is a figure which shows the state to which some time passed, after the lock plate pinched | interposed the person's hand and foot. It is a figure which shows the characteristic of the damper rubber used for the parking management apparatus of FIG. It is a figure which shows the other example of the engagement insertion part used for the parking management apparatus of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Parking management apparatus 2 ... Lock plate 3 ... Lock plate drive mechanism 7 ... Motor 22 ... 3rd rotating shaft (1st lock plate rotating shaft)
26. Fourth rotating shaft (second locking plate rotating shaft)
28 ... engagement insertion part 40 ... driven plate (plate part)
DESCRIPTION OF SYMBOLS 41 ... Engagement hole 41a ... Opposite side 41b ... Opposite side 112 ... Engaged member 118 ... Square part S1 ... Play gap S2 ... Play gap

Claims (4)

In a parking management device comprising a lock plate drive mechanism that operates a lock plate that can be opened and closed by the power of a motor,
The lock plate driving mechanism has a first lock plate rotation shaft provided with an engagement insertion portion that is rotated by the power of the motor and is engaged with the lock plate,
The lock plate is
An engagement hole with which the engagement insertion portion of the first lock plate rotation shaft is engaged is provided, and the cross-sectional shape of the engagement hole is in a state in which the engagement insertion portion is engaged with the engagement hole. A parking management device characterized in that a play-like play gap is formed at a 180-degree symmetrical position, and the lock plate is rotatable in the opening direction by a predetermined angle with respect to the engagement insertion portion.   The lock plate includes a second lock plate rotation shaft and an engaged member having the engagement hole on the engagement insertion portion side of the second lock plate rotation shaft. Has a rectangular portion having a cubic shape and a plate-like plate portion attached so as to be in close contact with one end face of the rectangular portion, and the plate portion is one end side of the lock plate. The end face of the lock plate is bent to form a side surface of the lock plate, and the cross-sectional shape of the engagement insertion portion is an oval shape having a pair of opposing sides in an arc shape. The cross-sectional shape of the hole has a form in which a pair of opposing corners in the oval shape swell in the same circumferential direction centering on the approximate center of each linear opposing side forming the oval shape. The parking management device according to claim 1.   The parking management device according to claim 2, wherein the square portion has a laminated structure in which flat plate-like engagement plates provided with a plurality of the engagement holes are laminated.   The parking management device according to any one of claims 1 to 3, wherein the play gap on the tip end side of the lock plate is shaped to have a wider angle than the play gap on the base side.

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