JP2010126931A - Vehicle detector and flap type parking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent such an erroneous detection from occurring that a parking vehicle is present despite the fact that a parking vehicle is absent by a vacant can placed on a cover near a vehicle detection coil. <P>SOLUTION: In this vehicle detector 13 of a flap type parking device 5, the detection part cover 24 for storing the vehicle detection coils 22, 23 is provided to a coil disposition part 15 provided to one side of a flap plate 11 in the extending direction, ridge parts 41, 42 having radii of curvature of 50 mm or shorter are formed on the detection part cover 24 at the positions corresponding to the coils 22, 23, respectively, and an inclination part 43 having an inclination angle of 17° or higher is formed between the ridge parts 41, 42. A bearing storage cover 34 for storing a bearing which supports the flap plate 11 is provided to a bearing disposition part 16 between one end of the flap plate 11 in the extending direction and the coil disposition part 15. Inclination parts 44, 45 having inclination angles of 17° or higher are formed on the bearing storage cover 34. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a vehicle detection device and a flap type parking device for a flap type parking lot that detects a vehicle entering a parking area and prevents the vehicle from leaving before the parking fee is settled.

In general, a flap-type parking device that manages the driving of a parked vehicle exit prevention unit for each parking area of a parking lot includes a vehicle detection device that detects whether a parked vehicle is present. Conventionally, the vehicle detection device is generally of a type in which a loop coil or a magnetic sensor, which is a separate member from the flap device that prevents the parked vehicle from leaving, is embedded in the ground in the parking area. However, in recent years, a type in which a vehicle detection device is provided integrally with a flap device has begun to spread. The type that integrates the vehicle detection device and the flap device can be installed easily because both devices are integrated. At the factory shipment stage, both devices are inspected at the same time for quality. There is a merit that management efficiency can be improved, and the spread is expected to expand further in the future. For example, in Patent Document 1, a vehicle detection sensor is incorporated in a locking device (a flap device) that stands up between front and rear tires of a parked vehicle to lock the vehicle so that the reliability of vehicle detection can be improved. A parking vehicle exit prevention device is described. This exit prevention device has a cover portion covering the bearing portion of the rotating shaft on the extended end side of the locking portion (flap plate) extended toward the center of the parking section of the locking device (flap device). And a vehicle detection sensor including a transmission unit including a transmission coil and a reception unit including a reception coil is housed in the cover portion.
JP 2007-205018 A

  However, in the above-described conventional parked vehicle exit prevention device, when an empty can is placed in the vicinity of the vehicle detection unit of the exit prevention device, the magnetic field formed by the transmission coil of the vehicle detection sensor changes depending on the empty can. The change is detected by the receiving coil, and there is a problem that a false detection that there is a parked vehicle may occur even though there is no parked vehicle.

  The present invention has been made in view of, for example, such problems, and the problem of the present invention is that a parked vehicle can be obtained by placing a small object formed of a magnetic material such as an empty can in the vicinity of a vehicle detection coil. The present invention is to provide a vehicle detection device and a flap type parking device for a flap type parking device that can prevent erroneous detection that there is a parked vehicle despite the absence.

  In order to solve the above-mentioned problem, a first vehicle detection device of the present invention includes a flap plate provided on the ground in a parking area and extending in a direction intersecting with an entering / exiting direction of a parked vehicle, and the flap plate Is a vehicle detection device for a flap type parking device that prevents the parked vehicle from exiting and allows the parked vehicle to enter and exit by defeating the flap plate, and is one side in the extension direction of the flap plate A coil arrangement portion provided on the coil arrangement portion, a pair of transmission and reception vehicle detection coils disposed on the coil arrangement portion in the approach / retreat direction of the parked vehicle, respectively, and the pair of vehicle detections A detection unit cover provided on the coil arrangement unit so as to accommodate the coil for use, and an end region of the detection unit cover corresponding to each of the pair of vehicle detection coils A mountain ridge portion having a shape is formed, and a first inclined portion that is inclined downward toward the outside in the extension direction of the flap plate is formed in an intermediate region of the detection unit cover extending between the mountain ridge portions. It is characterized by.

  In order to solve the above-described problem, a second vehicle detection device of the present invention is the above-described first vehicle detection device of the present invention, which is located between one end portion in the extension direction of the flap plate and the coil placement portion. And a bearing placement portion for placing a bearing that supports one end portion of the rotating shaft of the flap plate, and a bearing housing cover provided on the bearing placement portion so as to accommodate the bearing, and the detection portion A second inclined portion that is inclined downward toward the outside in the approach / retreat direction of the parked vehicle is formed in an end region of the bearing housing cover adjacent to the mountain ridge portion of the cover, respectively. And

  In order to solve the above-described problem, the third vehicle detection device of the present invention is the above-described first or second vehicle detection device of the present invention, wherein the first inclined portion has an empty can of drinking water thereon. It is characterized in that it has an inclination angle that cannot be held.

  In order to solve the above-mentioned problem, the fourth vehicle detection device of the present invention is the above-described second vehicle detection device of the present invention, wherein the second inclined portion keeps an empty can of drinking water thereon. It has a tilt angle that cannot be achieved.

  In order to solve the above-described problem, the fifth vehicle detection device of the present invention is the above-described first or second vehicle detection device of the present invention, wherein the mountain ridge portion keeps an empty can of drinking water on it. It has a radius of curvature that cannot be achieved.

  In order to solve the above-described problem, a sixth vehicle detection device of the present invention is the above-described first or second vehicle detection device of the present invention, wherein the inclination angle of the first inclined portion is 17 degrees or more. It is characterized by that.

  In order to solve the above-described problem, a seventh vehicle detection device of the present invention is the above-described second vehicle detection device of the present invention, wherein the inclination angle of the second inclined portion is 17 degrees or more. And

  In order to solve the above-described problem, an eighth vehicle detection device according to the present invention is characterized in that, in the first or second vehicle detection device described above, a curvature radius of the mountain ridge portion is 50 mm or less.

  In order to solve the above-mentioned problems, a flap type parking apparatus according to the present invention has a flap plate provided on the ground in a parking area and extending in a direction intersecting with an approaching / leaving direction of a parked vehicle, and raises the flap plate. A flap-type parking device that prevents the parked vehicle from leaving and allows the parked vehicle to enter and exit by defeating the flap plate, wherein the coil placement portion is provided on one side in the extension direction of the flap plate And a pair of transmitting and receiving coils for vehicle detection that are arranged apart from each other in the approach / retreat direction of the parked vehicle on the coil placement portion, one end portion in the extension direction of the flap plate, and the coil placement And a pair of vehicle detection coils and the bearings, and a bearing arrangement portion in which a bearing for supporting one end portion of the rotation shaft of the flap plate is arranged. A cover provided on the coil placement portion and the bearing placement portion, and is located above the coil placement portion and has a ridge shape in the end region of the cover corresponding to the pair of vehicle detection coils. A first inclined portion that is inclined downward toward the outside in the extension direction of the flap plate in an intermediate region of the cover that is formed above the coil placement portion and that extends between the mountain ridge portions. Is formed, and is positioned above the bearing arrangement portion, and in the end side region of the cover adjacent to the mountain ridge portion, a second inclined portion that inclines downward toward the outside in the approach / retreat direction of the parked vehicle Are formed, the inclination angles of the first and second inclined parts are each 17 degrees or more, and the curvature radius of the mountain ridge part is 50 mm or less.

  According to the above-described first vehicle detection device of the present invention, the detection unit cover of the vehicle detection device has the mountain ridge portion and the first inclined portion, and keeps the small object formed of the magnetic material. There is no horizontal area to be able to. As a result, it is not possible to make a mischief such as causing a false detection of the vehicle detection device by placing a small object formed of a magnetic body in the vicinity of the vehicle detection coil, and the accuracy of vehicle detection can be improved.

  Further, according to the second vehicle detection device of the present invention described above, since the second inclined portion is formed in the end side region of the bearing housing cover adjacent to the mountain ridge portion of the detection portion cover, the magnetic body The small object formed by the above cannot be kept in the vicinity of the vehicle detection coil. Thereby, the said mischief which causes the erroneous detection of a vehicle detection apparatus cannot be performed, and the precision of vehicle detection can be improved.

  In addition, according to any one of the third to eighth vehicle detection devices of the present invention described above, a small object formed of a magnetic material such as an empty can of drinking water cannot be kept near the vehicle detection coil. Therefore, the above-described mischief that causes erroneous detection of the vehicle detection device cannot be performed, and the accuracy of vehicle detection can be increased.

  Moreover, according to the flap type parking apparatus of the present invention described above, the mountain ridge portion, the first inclined portion, and the bearing for supporting one end of the rotation shaft of the flap plate and the cover for housing the vehicle detection coil are provided. The 2nd inclination part is formed, Thereby, the small object formed with the magnetic body like the empty can of drinking water cannot be kept in the coil vicinity for vehicle detection. Therefore, the misplacement of causing erroneous detection of the vehicle by placing the small object in the vicinity of the vehicle detection coil can be prevented, and a flap type parking apparatus with high vehicle detection performance can be realized.

  According to the above-described present invention, a small object formed of a magnetic material such as an empty can is placed in the vicinity of the vehicle detection coil, so that a false detection that there is a parked vehicle occurs even though there is no parked vehicle. Can be prevented.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a state where a vehicle is parked in a parking area where a flap type parking device including a vehicle detection device according to an embodiment of the present invention is installed. FIG. 1 (A) shows the state from above. FIG. 1 (B) is a view of the state as seen from the direction of arrows bb in FIG. 1 (A), and FIG. 1 (C) is a view of the state in FIG. 1 (A). It is the figure seen from the arrow cc direction.

  A plurality of parking areas 1 having a predetermined size are formed in the parking lot site. Each parking area 1 is partitioned by applying white line paint or the like to the ground. As shown in FIG. 1 (A), car stops 3 and 3 are installed on the back side in the approach direction of the parked vehicle 2 in each parking area 1, and a flap type is installed in the center of the approach direction of the parked vehicle 2 in each parking area 1. A parking device 5 is provided.

  FIG. 2 shows the flap type parking apparatus 5 in FIG. As shown in FIG. 2, the flap-type parking device 5 includes a long plate-shaped flap plate 11 that extends in a direction intersecting with the approach / retreat direction of the parked vehicle 2, and the approach direction of the parked vehicle 2 with respect to the flap plate 11. A long plate-like slope portion 12 extending in parallel with the flap plate 11, a vehicle detection device 13 provided on one side in the extension direction of the flap plate 11, and provided on the other side in the extension direction of the flap plate 11. The drive part 14 was provided. The flap type parking apparatus 5 is disposed such that the flap plate 11 is positioned between the tires before and after the parked vehicle 2 that has entered the parking area 1 and parked in reverse. In this case, the vehicle detection device 13 is positioned substantially in the center in the width direction of the parking area 1, and when the parked vehicle 2 is in the parking area 1, the vehicle detection device 13 faces the central portion of the bottom 6 of the parked vehicle 2 (FIG. 1). reference). The drive unit 14 is located on the white line paint located on the other end side in the width direction of the parking area 1. The slope portion 12 is gently inclined upward from the front side in the approach direction of the parked vehicle 2 toward the back side in order to make it easier to ride the tire on the flap plate 11 when the parked vehicle 2 enters.

  The vehicle detection device 13 includes a bearing arrangement portion 16 located on one side in the extending direction of the flap plate 11 and a coil arrangement portion 15 connected to the bearing arrangement portion 16. A base plate 21 is provided at the bottom of the coil placement portion 15, and a pair of vehicle detection coils, that is, a transmission coil 22 and a reception coil 23 are fixed on the base plate 21. Further, a resin detection unit cover 24 is provided on the base plate 21 so as to accommodate the transmission coil 22 and the reception coil 23. The base plate 21 has a function of preventing the leakage of magnetic flux formed by the transmission coil 22 and increasing the detection distance, or a structure in which the magnetic field formed by the transmission coil 22 can exist inside the ground of the parking area 1. In addition, it has a function of preventing the vehicle detection performance from deteriorating due to changes caused by wiring, reinforcing bars (especially heat pipes and heaters for road heating in cold regions), and the like. In order to realize such a function, the material of the base plate 21 is preferably a soft magnetic material, and is preferably a material having a high relative magnetic permeability such as iron, silicon iron, permalloy or the like. The transmission coil 22 and the reception coil 23 are arranged apart from each other in the approach / retreat direction of the parked vehicle 2 and are inclined so as to face each other at a predetermined angle in the approach / retreat direction of the parked vehicle 2. The transmission coil 22 and the reception coil 23 are connected to the drive unit 14 through the inside of the slope unit 12 by wiring not shown. On the other hand, on the bottom plate portion 31 of the bearing arrangement portion 16, a bearing 33 that supports one end portion of the rotation shaft 32 of the flap plate 11 is fixed. Further, a metal or resin bearing housing cover 34 is provided on the bottom plate portion 31 so as to accommodate the bearing 33. On the other hand, in the case of the drive unit 14, a control circuit (not shown) for rotating the flap plate 11 based on the detection result of the vehicle detection device 13, and the other end of the rotation shaft 32 of the flap plate 11. A bearing (not shown) for supporting the side is provided.

  In the flap type parking apparatus 5 having such a configuration, a magnetic field is formed by the transmission coil 22 of the vehicle detection apparatus 13. When the parked vehicle 2 enters the vehicle detection device 13, the magnetic field changes due to the bottom 6 of the parked vehicle 2 formed of a magnetic material, and the change in the magnetic field is detected by the receiving coil 23. The detection result is transmitted to the drive unit 14 via the wiring in the slope unit 12, and the drive unit 14 controls the rotation of the flap plate 11 based on the detection result. Specifically, for the parked vehicle 2 before fee settlement, the flap plate 11 is raised to prevent the parked vehicle 2 from leaving, and for the parked vehicle 2 for which fee settlement has been completed, the flap plate 11 is brought down. This enables the parked vehicle 2 to leave. Further, when there is no parked vehicle 2 in the parking area 1, the parked vehicle 2 can be entered by tilting the flap plate 11.

  FIG. 3 shows the operation of the vehicle detection device 13. FIG. 3A shows the state of the vehicle detection device 13 when the parked vehicle 2 is not on the vehicle detection device 13, and FIG. 3B shows the vehicle detection device when the parked vehicle 2 is on the vehicle detection device 13. 13 states are shown. As shown in FIG. 3A, when there is no parked vehicle 2 on the vehicle detection device 13, the number of magnetic lines M in the magnetic field formed on the ground G by the transmission coil 22 is small in the vicinity of the reception coil 23. The magnetic field detected by the receiving coil 23 is relatively small. On the other hand, as shown in FIG. 3B, when the parked vehicle 2 is on the vehicle detection device 13, the magnetic field lines M in the magnetic field formed on the ground G by the transmission coil 22 are on the bottom 6 of the parked vehicle 2. Since the magnetic loop is formed by the magnetic material, the number of the coils increases in the vicinity of the receiving coil 23, which is more “dense” than the case shown in FIG. That is, in this case, the magnetic field detected by the receiving coil 23 is relatively large. Thus, the strength of the magnetic field detected by the receiving coil 23 increases or decreases depending on whether or not the parked vehicle 2 is on the vehicle detection device 13. Therefore, the presence or absence of the parked vehicle 2 can be detected based on the increase / decrease in the strength of the magnetic field. In FIG. 3, the case where the bottom 6 of the parked vehicle 2 is flat has been described as an example. However, the actual bottom 6 of the parked vehicle 2 is not flat and often has a complicated shape. However, even if the bottom portion 6 is uneven, a magnetic loop is formed between the base plate 21 and the magnetic flux passes through the surface thereof. Can be detected.

  However, like the vehicle detection device 81 of the flap type parking device 80 shown in the comparative example in FIG. 9A, it is provided on the base plate 85 so as to accommodate the transmission coil 82, the reception coil 83 and the bearing 84. In the cover 86 made of resin, when gently inclined surfaces 87 and 88 having an inclination angle of 16 degrees or less are formed in the vicinity of the transmitting coil 82 and the receiving coil 83, respectively, You can keep empty cans of drinking water. For example, in the case of a normal coffee can, it has a diameter of about 52 mm and a height of about 103 mm, and it is not difficult to place it stably on one of the surfaces 87 and 88. When an empty can or the like is placed in the vicinity of the transmission coil 82 or the reception coil 83 in this way, the number of magnetic fluxes passing through the empty can E becomes dense or near the transmission coil 82 as shown in FIG. When the empty can E is placed, the lines of magnetic force are rebounded and the number of magnetic fluxes reaching the receiving coil 83 becomes sparse, and as a result, the number of magnetic lines of force M near the receiving coil 83 changes. As a result, the vehicle detection device 81 may erroneously detect that there is a parked vehicle even though there is no parked vehicle. If it is known that erroneous detection occurs in the vehicle detection device 81 in this manner, there is a risk of mischief or illegal parking using the erroneous detection. Furthermore, according to another vehicle detection device having a horizontal surface on the cover in the vicinity of the transmission coil or the reception coil, it becomes even easier to place an empty can. Increases the likelihood of occurrence. In contrast to such a comparative example, the vehicle detection device 13 of the flap type parking apparatus 5 according to the embodiment of the present invention in FIG. 2 can keep empty cans in the vicinity of the transmission coil 22 and the reception coil 23. Since this is not possible, erroneous detection of the vehicle detection device 13 due to the placement of an empty can or the like does not occur. This will be described in detail below.

  4A is a plan view of the flap type parking apparatus 5 in FIG. 2, and FIG. 4B is a vehicle detection from one end of the flap type parking apparatus 5 in FIG. 4A. It is the figure which expanded and showed the arrow bb direction cross section of the part to the apparatus 13), and FIG.4 (C) shows the flap type parking apparatus 5 in FIG. 4 (A) in the arrow cc direction. It is the figure seen from. As shown in FIG. 4 (A) or FIG. 4 (C), end regions on both sides of the detection cover 24 in the approaching / leaving direction of the parked vehicle 2, that is, detection unit covers corresponding to the transmission coil 22 and the reception coil 23, respectively. In the end side region 24, mountain ridge portions 41 and 42 each having a mountain ridge shape are formed. Each of the mountain ridges 41, 42 has a radius of curvature on which an empty can of drinking water cannot be kept. The radius of curvature is preferably 50 mm or less. Furthermore, as shown in FIG. 4 (A) or FIG. 4 (B), in the middle region of the detection unit cover 24 that extends between the mountain ridges 41 and 42, the inclination that inclines downward toward the outside in the extension direction of the flap plate 11 A portion 43 is formed. The inclined portion 43 has an inclination angle at which an empty can of drinking water cannot be kept on it. This inclination angle is desirably 17 degrees or more. Further, as shown in FIG. 4 (A) or FIG. 4 (C), the parked vehicle 2 enters and exits in the end region of the bearing housing cover 34 adjacent to the ridges 41 and 42 of the detection unit cover 24, respectively. Inclined portions 44 and 45 that are inclined downward toward the outside in the direction are formed. That is, the inclined portion 44 is inclined downward toward the rear side in the approach direction of the parked vehicle 2, and the inclined portion 45 is inclined downward toward the front side of the parked vehicle 2 in the approach direction. Each of the inclined portions 44 and 45 has an inclination angle at which an empty can of drinking water cannot be kept on it. This inclination angle is desirably 17 degrees or more. As described above, since the transmission coil 22 and the reception coil 23 are arranged immediately below the end regions on both sides of the detection unit cover 24, the mountain ridge 41, so as to accommodate the transmission coil 22 and the reception coil 23, 42 is formed, but in the intermediate region of the detection unit cover 24, although there is a wiring member or the like, there is no member having a relatively large height such as the transmission coil 22 and the reception coil 23, so that the inclined portion 43 is formed. In addition, the inclined portions 44 and 45 of the bearing housing cover 34 have an inclination angle at which an empty can or the like cannot be placed. This inclination is caused when the tire rides on the bearing housing cover 34. In addition to preventing damage, the bearing housing cover 34 is also prevented from being damaged. Only the detection unit cover 24 and the bearing housing cover 34 of FIG. 4A have contour lines representing the degree of inclination on the surface.

  FIG. 5 shows a state in which the empty can E cannot be kept on the inclined portion 43 of the detection unit cover 24. As shown in FIG. 5, when the inclination angle of the inclined portion 43 is 17 degrees or more, even if an empty can E is to be stably placed on the inclined portion 43, the empty can E is always inclined by the inclination of the inclined portion 43. Slide down 43. The inclination angle of 17 degrees is the minimum angle at which the empty can E slides down. Assuming that the coefficient of friction between the inclined surface of the inclined portion 43 and the empty can E is approximately 0.3, the angle α is 16.7 degrees from the calculation formula tan α = 0.3. Therefore, the inclination angle of the inclined portion 43 is desirably 17 degrees or more.

FIG. 6 shows a state in which an empty can E of drinking water cannot be kept on the mountain ridge 41 of the detection unit cover 24. FIG. 7 shows a method for determining the radius of curvature of the ridge 41. As shown in FIG. 6, when the curvature radius of the mountain ridge 41 is 50 mm or less, the empty can E cannot be stably placed on the mountain ridge 41. The radius of curvature of the ridge 41 is smaller than the radius of curvature that fits in the recess (assuming a diameter of 50 mm and a depth of the recess of 6 mm) at the top of the coffee can (the side with the pull tab). The curvature radius r of the ridge 41 having such a curvature can be obtained by the following calculation formula (see FIG. 7).
r ² = 25 ² + (r-6) ²
12r = 634
r = 52.8mm
If the radius of curvature is less than 52.8 mm, the coffee can cannot be stably placed. Therefore, it is desirable that the radius of curvature of the ridge 41 is 50 mm or less. The same applies to the mountain ridge 42.

  The reason why it is desirable that the inclination angles of the inclined portions 44 and 45 of the bearing housing cover 34 are each 17 degrees or more is that the inclination angle of the inclination portion 43 of the detection section cover 24 is preferably 17 degrees or more. It is the same. In FIG. 6, there is a possibility that an empty can may be placed on the flat portion 46 at the center of the bearing housing cover 34, but even if an empty can is placed on the flat portion 46, the empty can is transferred from the transmitting coil 22 to the receiving coil 23. Therefore, the influence of the empty can on the magnetic lines of force is small, and no erroneous detection of the vehicle detection device 13 occurs.

  FIG. 8 shows another embodiment of the vehicle detection device of the flap type parking apparatus of the present invention. In the vehicle detection device 13 of the flap type parking apparatus 5 shown in FIG. 2 or 4, a detection unit cover 24 that is a cover of the coil arrangement unit 15 and a bearing housing cover 34 that is a cover of the bearing arrangement unit 16 are mutually connected. It is formed as a separate member. On the other hand, in the vehicle detection device 51 of the flap type parking apparatus 50 according to another embodiment of the present invention shown in FIG. 8, a resin made by integrating the cover of the coil arrangement portion 52 and the cover of the bearing arrangement portion 53. Cover 54 is provided. That is, the cover 54 is provided on the coil arrangement part 52 and the bearing arrangement part 53 so as to accommodate the transmission coil 55, the reception coil 56 and the bearing 57 of the vehicle detection device 51. The cover 54 is formed with mountain ridges 61 and 62, and the curvature radii, shape and arrangement of the mountain ridges 61 and 62 are the same as the curvature radii, shape and arrangement of the mountain ridges 41 and 42 of the detection unit cover 24. Further, the cover 54 is formed with an inclined portion 63, and the inclined angle, shape, and arrangement of the inclined portion 63 are the same as the inclined angle, shape, and arrangement of the inclined portion 43 of the detection unit cover 24. The cover 54 is formed with inclined portions 64 and 65. The inclined portions 64 and 65 have the same inclination angle, shape and arrangement as the inclined portions 44 and 45 of the bearing housing cover 34. . According to the vehicle detection device 51 of the flap-type parking device 50, the vehicle detection device 51 is completely integrated with the flap-type parking device 50. Since mischief and fraud can be prevented, the crime prevention property of the flap type parking apparatus 50 can be improved.

  The mountain ridges 41, 42, 61, 62 or the inclined portions 44, 45, 64, 65 may be provided with inclined ribs or narrow recesses in order to smooth the sliding-down of empty cans or the like. In addition, a concave portion for a cover mounting bolt or the like is formed on part of the mountain ridge portions 41, 42, 61, 62 or the inclined portions 44, 45, 64, 65 as long as the shape that cannot hold empty cans is maintained. can do.

  As an explanation of the operation of the present invention, the detection of the parked vehicle 2 and the empty can E, which are magnetic bodies, is made from the change in the state in which the magnetic field lines M in the magnetic field formed by the transmission coil 22 are detected by the reception coil 23. Although they are described as models, they do not describe the detailed operating principle. In fact, even if the surrounding non-magnetic metal is oscillated by high-frequency oscillation of the transmission coil, the surface eddy current Detection is possible from the influence of loss, and the vehicle detection device as an application of the present invention is not limited to detection of a magnetic material.

  Further, the present invention can be appropriately changed without departing from the gist or concept of the invention which can be read from the claims and the entire specification, and the vehicle detection device and the flap type parking device accompanied by such a change are also described in the present invention. It is included in the technical idea of the invention.

BRIEF DESCRIPTION OF THE DRAWINGS It is explanatory drawing which shows the state which has parked the vehicle in the parking area where the flap type parking apparatus containing the vehicle detection apparatus which is embodiment of this invention was installed, FIG. 1 (A) is a top view which shows the said state. 1B is a side view of the state from the direction of arrow bb in FIG. 1A, and FIG. 1C shows the state of arrow c- in FIG. 1A. It is a rear view from c direction. It is a perspective view which shows the flap type parking apparatus in FIG. It is explanatory drawing which shows operation | movement of a vehicle detection apparatus, FIG. 3: (A) shows the expanded cross section of the arrow III-III direction of FIG. 2 of a vehicle detection apparatus, and the vehicle detection apparatus when there is no parked vehicle on a vehicle detection apparatus FIG. 3 (B) shows an enlarged cross section of the vehicle detection device in the direction of arrows III-III in FIG. 2 and shows the state of the vehicle detection device when there is a parked vehicle on the vehicle detection device. It is explanatory drawing shown. It is explanatory drawing which shows the flap type parking apparatus in FIG. 2, FIG. 4 (A) is a top view of the flap type parking apparatus in FIG. 2, FIG. 4 (B) is FIG. 4 (A) in FIG. It is an expanded sectional view of the arrow bb direction of a flap type parking device (part from a flap board one end part to a vehicle detection device), and Drawing 4 (C) shows a flap type parking device in Drawing 4 (A). It is the side view seen from the arrow cc direction. It is explanatory drawing which shows a mode that the empty can of drinking water cannot be kept on the inclination part of a detection part cover. It is explanatory drawing which shows a mode that the empty can of drinking water cannot be kept on the mountain ridge part of a detection part cover. It is explanatory drawing which shows the determination method of the curvature radius of a mountain ridge part. It is a perspective view which shows other embodiment of the vehicle detection apparatus of the flap type parking apparatus of this invention. It is explanatory drawing which shows the comparative example of a flap type parking apparatus, FIG. 9 (A) is a perspective view which shows the comparative example of a flap type parking apparatus, FIG.9 (B) is a flap type parking in FIG. 9 (A). It is an expanded sectional view of the device in the direction of arrow bb.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Parking area 2 Parked vehicle 5, 50 Flap type parking device 13, 51 Vehicle detection device 15, 52 Coil arrangement part 16, 53 Bearing arrangement part 22, 55 Transmitting coil (coil for vehicle detection)
23, 56 Receiver coil (vehicle detection coil)
24 Detection part cover 32 Rotating shaft 33, 57 Bearing 34 Bearing housing cover 41, 42, 61, 62 Mountain ridge part 43, 63 Inclined part (first inclined part)
44, 45, 64, 65 Inclined part (second inclined part)
54 Cover

Claims (9)

It has a flap plate that is provided in the parking area and extends in a direction intersecting with the direction of entry / exit of the parked vehicle, prevents the parked vehicle from moving out by raising the flap plate, and tilts the flap plate to A vehicle detection device for a flap-type parking device that allows entry and exit,
A coil arrangement portion provided on one side in the extending direction of the flap plate;
A pair of vehicle detection coils for transmission and reception respectively disposed apart from each other in the approaching / leaving direction of the parked vehicle on the coil placement unit,
A detection unit cover provided on the coil arrangement unit so as to accommodate the pair of vehicle detection coils,
A mountain ridge portion having a mountain ridge shape is formed in each end region of the detection unit cover corresponding to each of the pair of vehicle detection coils, and the flap plate is disposed in an intermediate region of the detection unit cover extending between the mountain ridge portions. The vehicle detection apparatus characterized by the 1st inclination part which inclines downward toward the extending | stretching direction outer side of this. A bearing placement portion for placing a bearing that is positioned between one end portion in the extension direction of the flap plate and the coil placement portion and supports one end portion of the rotation shaft of the flap plate;
A bearing housing cover provided on the bearing arrangement portion so as to accommodate the bearing,
Second end portions that incline downward toward the outside in the approach / retreat direction of the parked vehicle are formed in end regions of the bearing housing covers adjacent to the mountain ridge portions of the detection unit cover, respectively. The vehicle detection device according to claim 1.   3. The vehicle detection device according to claim 1, wherein the first inclined portion has an inclination angle at which an empty can of drinking water cannot be kept on the first inclined portion. 4.   The vehicle detection device according to claim 2, wherein the second inclined portion has an inclination angle at which an empty can of drinking water cannot be kept on the second inclined portion.   3. The vehicle detection device according to claim 1, wherein the mountain ridge has a curvature radius on which an empty can of drinking water cannot be kept.   The vehicle detection device according to claim 1, wherein an inclination angle of the first inclined portion is 17 degrees or more.   The vehicle detection device according to claim 2, wherein an inclination angle of the second inclined portion is 17 degrees or more.   The vehicle detection device according to claim 1, wherein a curvature radius of the mountain ridge portion is 50 mm or less. It has a flap plate that is provided in the parking area and extends in a direction intersecting with the direction of entry / exit of the parked vehicle, prevents the parked vehicle from moving out by raising the flap plate, and tilts the flap plate to A flap-type parking device that allows entry and exit,
A coil arrangement portion provided on one side in the extending direction of the flap plate;
A pair of vehicle detection coils for transmission and reception respectively disposed apart from each other in the approaching / leaving direction of the parked vehicle on the coil placement unit,
A bearing arrangement part in which a bearing that is located between one end part in the extension direction of the flap plate and the coil arrangement part and supports one end part of the rotation shaft of the flap plate is arranged;
A cover provided on the coil placement portion and the bearing placement portion so as to accommodate the pair of vehicle detection coils and the bearing;
A mountain ridge portion having a mountain ridge shape is formed in each of the end side regions of the cover that are located above the coil placement portion and correspond to the pair of vehicle detection coils, respectively.
A first inclined portion is formed in the middle region of the cover that is located above the coil placement portion and extends between the mountain ridge portions, and is inclined downward toward the outside in the extension direction of the flap plate.
A second inclined portion that is inclined downward toward the outside in the approach / retreat direction of the parked vehicle is formed in an end side region of the cover that is positioned above the bearing arrangement portion and adjacent to the mountain ridge portion. ,
The inclination angles of the first and second inclined portions are each 17 degrees or more,
The flap type parking apparatus, wherein a curvature radius of the mountain ridge portion is 50 mm or less.

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