JP2013252859A - Tire cleaning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tire cleaning device capable of properly cleaning a tire in response to the size of the tire, while miniaturizing the device.SOLUTION: A tire cleaning device 1 includes a base part 2 having the length longer than a lateral width of a work vehicle including a dump truck and a mixer vehicle in the width direction and laid so as to extend in one direction of the ground surface, and a pair of mutually opposed injection part 3a and injection part 3b erected so as to cover an upper part of both end parts in the width direction of the base part 2. This base part 2 is provided with a mechanism for recognizing a diameter of the tire by placing the tire in a groove part 27. Water is properly injected in response to the diameter of the tire by injecting the water from injection ports arranged for forming a substantially circular shape so as to correspond to the diameter of the tire in the injection ports 3a and 3b based on the recognized tire diameter.

Description

  The present invention relates to a tire cleaning apparatus for cleaning tires, and more particularly to a tire cleaning apparatus for all vehicles entering and leaving a construction site.

  Due to the nature of the work site, a large amount of mud adheres to the tire of a construction vehicle such as a dump truck that transports materials at the construction site. When a construction vehicle leaves the construction site with mud on the tires, it not only pollutes the general road, but also the vehicle itself looks bad and further degrades driving fuel consumption. .

  An apparatus for coping with the above problems is disclosed in, for example, the following patent document. This non-patent document dump truck dripping device is installed near the entrance of a construction site, stops the dump truck at a predetermined position, and injects water according to the position and size of the tire of the dump truck, The mud that has adhered to is removed.

Utility model registration No. 3099713

  Conventionally, tires for construction vehicles have been washed by the dump truck mud dropping device as described above.

  On the other hand, not only construction vehicles such as dump trucks but also vehicles other than construction vehicles such as ordinary cars and light trucks enter and exit the construction site.

  However, since the dump truck mud dropping device disclosed in the patent document does not consider the cleaning of tires of ordinary cars and light trucks, for example, when ordinary cars clean tires, The water corresponding to the size was sprayed, and water was sprayed to an irrelevant position rather than being able to perform proper cleaning for the size of a tire in a normal automobile, causing waste of water. Moreover, the scale of the device itself is large and handling is not easy.

  The present invention has been made in view of the above problems, and provides a tire cleaning device capable of reducing the size of the device and appropriately cleaning the tire according to the size of the tire. With the goal.

  The tire cleaning device according to the present invention is provided on each of a base portion that is laid on the ground and recognizes the diameter of the tire when a vehicle tire is placed, and at both ends sandwiching the base portion, and facing each other. A pair of injection units for injecting liquid and an electromagnetic valve for controlling an injection range of the liquid from the injection unit, wherein the pair of injection units are substantially circular injection ports corresponding to the diameter of the tire. Multiple groups.

  According to the present invention, the tire diameter of the vehicle is placed and the diameter of the tire is recognized, and the injection range of the liquid injected from the pair of injection units is controlled based on the recognized tire diameter. Since the injection unit includes a plurality of groups of substantially circular injection ports corresponding to the diameter of the tire, it is possible to provide a tire cleaning device that can perform appropriate tire cleaning according to the size of the tire.

It is a figure which shows an example of the state which the tire cleaning apparatus is operate | moving. 1 is an overall perspective view showing a tire cleaning device. It is a top view in a tire washing device. It is an arrow line view in IV-IV of FIG. FIG. 5 is an arrow view taken along the line V-V in FIG. 2. It is an arrow view in VI-VI of FIG. 3, and is a schematic diagram which shows the piping structure in the inside of an injection part. It is an arrow view in VII-VII of FIG. 3, and is a schematic diagram which shows a plate part. It is a figure which shows the state by rotation of a plate part. It is a schematic diagram which shows the electrical connection in a control part, a photoelectric sensor, and an electromagnetic valve. It is a flowchart which shows the processing operation of a tire washing apparatus.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a view showing an example of a state in which a tire cleaning apparatus according to an embodiment of the present invention is operating, and FIG. 2 is an overall perspective view of the tire cleaning apparatus. In the following description, the direction in which the vehicle leaves the construction site is defined as the traveling direction of the vehicle. For example, the direction indicated by the arrow in FIG. In the tire cleaning device 1, water is injected from both sides of the vehicle stopped at a predetermined position, and the mud adhering to the tires of the vehicle is washed away. FIG. 1 shows a state in which tires of ordinary automobiles are being washed. As will be described in detail later, a plurality of injection ports provided by injection units 3a and 3b provided on both sides of the stop position of the vehicle. It can be seen from 100 that water is injected in an injection range appropriate for the diameter (size) of a tire of a normal automobile.

  As shown in FIG. 2, the tire cleaning device 1 has a length longer than the lateral width of a construction vehicle including a dump truck or a mixer truck in the width direction in the traveling direction, and extends in one direction of the ground. The base 2 to be laid, both of which are casings, include a pair of injection units 3a and 3b that are erected so as to cover the upper ends of both ends in the width direction of the base 2 and face each other. . The tire cleaning device 1 is provided in the vicinity of a doorway such as a construction site, and the base 2 is provided so as to be substantially orthogonal to the traveling direction of the vehicle. Moreover, in this embodiment, the conduit | pipe 4 for supplying water from the water supply apparatus which is not shown in figure is inserted in the injection part 3a, and the injection part 3a receives supply of water from a water supply apparatus suitably. In addition, water is supplied from the water supply device to the injection unit 3a and also supplied to the injection unit 3b. For example, the conduit 4 is branched outside the injection unit 3a, and water is supplied to the injection unit 3b so that the conduit branched into the first auxiliary table 22a or the second auxiliary table 22b described later is provided. May be.

  First, the base 2 will be described. As shown in FIGS. 2 and 3, the base 2 forms an upward slope from the rear of the base 2 to a substantially central portion in the traveling direction in order to facilitate entry when the vehicle passes over the base 2. Slope 21a and slope 21b. The base 2 has slopes 21c and 21d that form a downward slope from the base 2 toward the front in the traveling direction from the base 2 in order to make it easy for the vehicle to go out after passing over the base 2. . In addition, it is preferable that the inclination with respect to the ground in slope 21a-21d is 13 degrees-18 degrees. In addition, it is preferable that a friction member is provided on the slopes of the slopes 21a to 21d so that the tires of the vehicle do not slip, or the slopes are roughened to form an uneven shape. Further, in the width direction, the slopes 21a to 21d are such that when the vehicle passes above the base portion 2, the right tire passes above the slope 21a and the slope 21c, and the left tire passes above the slope 21b and the slope 21d. It is provided in the position which passes. Note that the slope 21 a and the slope 21 b may be configured integrally and may be configured as one slope extending in the width direction of the base 2. Similarly, the slope 21c and the slope 21d may be configured to be an integral slope.

  Further, as shown in FIGS. 3 and 4, the base 2 is configured such that the slope 21 a and the slope 21 b of the base 2 and the slope 21 c and the slope 21 d are separated from each other by a predetermined distance. A first auxiliary base 22a is provided on the rear side of the central portion (a chain line in FIG. 4), and a second auxiliary base 22b is provided on the front side of the central portion in the traveling direction. The first auxiliary table 22a and the second auxiliary table 22b are hollow quadrangular columns having a substantially square cross section formed with a length (for example, one side of about 75 mm) substantially the same as the height of the slopes 21a to 21d. The base 2 extends from a position below the injection section 3a provided at both ends of the base 2 to a position below the injection section 3b. That is, the slope 21a, the slope 21b, and the first auxiliary base 22a, and the slope 21c, the slope 21d, and the second auxiliary base 22b are the central part in the traveling direction of the base 2 (the chain line in FIG. 4). The axis is symmetrical in the front-rear direction. Accordingly, a groove 27 having a predetermined width is formed in the base 2 by the first auxiliary base 22a and the second auxiliary base 22b. In addition, as for the space | interval (width | variety of the groove part 27) of the 1st auxiliary stand 22a and the 2nd auxiliary stand 22b, about 200-250 mm is preferable, for example.

  Since the groove portion 27 has a predetermined width, the way in which the groove portion 27 and the tire are fitted differs depending on the diameter of the tire to be placed. The smaller the diameter of the tire placed in the groove 27, the deeper the groove 27 is fitted, and the larger the tire diameter, the shallower the groove 27 fits. That is, when the tire diameter is small, the tire fits deeply into the groove 27, so that the tire fits into the groove 27 so that the distance between the tire and the ground is close to the approximate center of the groove 27. On the other hand, when the tire has a large diameter, the tire fits into the groove 27 only because it is shallow, so the tire fits into the groove 27 so that the distance between the tire and the ground is far away at the approximate center of the groove 27.

  The base 2 is provided with a part of a mechanism for recognizing the diameter of the tire based on the difference in how the groove 27 and the tire are fitted. As shown in FIGS. 3 and 4, the base portion 2 is provided as a part of a mechanism for recognizing the diameter of the tire, and protrudes from the front side of the first auxiliary base 22 a, and one side is the left front side of the slope 21 a. In the vicinity (near the center in the width direction of the base portion 2), the other is supported by a pair of rotation support portions 23a and a rotation shaft support portion 23b provided near the lower portion of the injection portion 3a, and the rotation support portion 23a and the rotation support portion 23b. And provided between the rotation support portion 23a and the rotation support portion 23b, extending from the rotation support portion 23a to the right side of the rotation support portion 23b and parallel to the first auxiliary base 22a. A pair of arm portions 24a and 24b projecting from the rotating shaft 26 in a substantially forward direction, and the ends of the arm portions 24a and 24b are connected to each other to extend substantially at the center of the groove portion 27 ( A dashed line in 4) provided so as to be positioned on the first auxiliary board 22a and the second auxiliary board 22b and substantially the same height, comprising a rotating bar 25 which extends parallel to the rotation axis 26. The rotating shaft 26 is fixed to a later-described plate portion 28 provided inside the injection portion 3a on the right side of the rotation support portion 23b.

  The rotation shaft 26, the arm portion 24a and the arm portion 24b, and the rotation bar 25 are integrally formed, and are configured to be rotatable about the rotation shaft 26 while being supported by the rotation support portion 23a and the rotation support portion 23b. Has been. Further, the rotation of the rotation shaft 26, the arm portion 24a and the arm portion 24b, and the rotation bar 25 as a whole is controlled so that the rotation bar 25 is maintained at the position described above (see FIG. 4). Yes. That is, the rotating shaft 26, the arm part 24a and the arm part 24b, and the rotating bar 25 are kept stationary as shown in FIG.

  This is because the rotation shaft 26, the arm portion 24a and the arm portion 24b, and the rotation bar 25 and the plate portion 28, which will be described later, are fixed to the rotation shaft 26 when the tire is not placed in the groove portion 27. A rotational moment is generated in the clockwise direction in FIG. 4 due to the gravity applied to the portion 28, and the plate portion 28 comes into contact with the ground by the rotational moment. As a result, the generated rotational moment is canceled by the reaction force from the ground, and as shown in FIG. 4, the rotary shaft 26, the arm portion 24a and the arm portion 24b, and the rotary bar 25 maintain a stationary state. ing.

  On the other hand, when the tire is placed in the groove portion 27, a force larger than the rotational moment by the plate portion 28 is applied to the rotary bar 25, whereby the rotary shaft 26, the arm portion 24 a and the arm portion 24 b, and the rotary bar 25. The plate portion 28 fixed to the rotary shaft 26 rotates in the counterclockwise direction in FIG. 4 around the rotary shaft 26 as a unit.

  Therefore, by configuring as described above, when the tire is placed in the groove portion 27, the rotation bar 25 provided in the central portion of the groove portion 27 is pushed downward according to the diameter of the tire. Accordingly, the rotation bar 25 rotates, and the rotation shaft 26 rotates by the amount of rotation. The details of the plate portion 28 that rotates with this rotation will be described later.

  Next, the injection unit will be described. In the following description, since the injection unit 3a and the injection unit 3b have the same basic structure, the following description will focus on the injection unit 3a, and differences will be described later.

  As shown in FIG. 5, the injection unit 3 a has a plurality of injection ports 100 on the side where the vehicle is stopped. Specifically, eight injection ports, the injection ports s1 to s3 and the injection ports t1 to t5, are arranged in the injection unit 3a so as to form a substantially circular shape. Also, eight injection ports, injection ports s1 to s3 and injection ports u1 to u5, 10 injection ports, injection ports s1 to s3 and injection ports v1 to v7, injection ports s1 to s3 and injection ports w1 to w9. Similarly, the 12 injection ports are arranged in the injection unit 3a so as to form substantially circular shapes having different radii. Hereinafter, a circle formed by the injection ports s1 to s3 and the injection ports t1 to t5 is a circle C1, a circle formed by the injection ports s1 to s3 and the injection ports u1 to u5 is a circle C2, and the injection ports s1 to s3 and the injection ports v1 to v7. And the circle formed by the injection ports s1 to s3 and the injection ports w1 to w9 is referred to as a circle C4.

  The centers of the circles C <b> 1 to C <b> 4 are all located on a line extending upward from the center portion of the groove portion 27 (the chain line in FIG. 4). Moreover, the injection ports which form each circle C1-C4 are arrange | positioned at substantially equal intervals on any circumference. The circles C <b> 1 to C <b> 4 are formed according to the diameter of the tire when placed in the groove portion 27. That is, the injection port arranged for each circle is arranged so as to be located on the side surface of the tire of each diameter placed on the groove portion 27, and thereby, the water corresponding to the diameter of each tire is set. Can be injected. For example, the radius of the circle C1 is about 230 mm, the radius of the circle C2 is about 275 mm, the radius of the circle C3 is 350 mm, and the radius of the circle C4 is 450 mm. preferable. Further, the height of the center of each circle is about 243 mm from the lowest point (upper surface of the first auxiliary table 22a and the second auxiliary table 22b) for the circle C1, about the lowest point about 308mm for the circle C2, and about the circle C3. Is preferably about 402 mm from the lowest point, and about 480 mm from the lowest point for circle C4.

  Moreover, the injection ports s1 to s3 arranged in the lower part of the circles C1 to C4 are shared by any of the circles C1 to C4 as described above. This is because the injection ports in the lower part of the circles C1 to C4 are arranged at substantially the same position, and therefore do not need to be provided for each tire diameter (see FIG. 5).

  In the inside of the injection part 3a, the piping structure shown in FIG. 6 and the plate part 28 shown in FIG. 7 are provided. As shown in FIG. 6 (an arrow view in VI-VI in FIG. 3), the piping structure of the injection unit 3a includes a connection unit 40 that connects the conduit 4 from the water supply device, and the connection unit 40 to the injection unit 3a. The main pipe 40a for feeding water to the pipe and the branch pipes 41 to 45 branched to supply water to the five different paths from the water fed from the main pipe 40a. Further, the branch pipes 42 to 45 are electromagnetic valves 52 to 55 for controlling water flow or water stop by signals from the control unit 60 described later (in FIG. 6, “V1”, “V2”, “V3” respectively). , “V4”). The branch pipe 41 supplies water to the above-described injection ports s1 to s3, the branch pipe 42 supplies water to the injection ports t1 to t5, the branch pipe 43 supplies water to the injection ports u1 to u5, and the branch tube 44 supplies the injection port v1. Water is supplied to ˜v7, and the branch pipe 45 supplies water to the injection ports w1 to w9. That is, since the branch pipe 41 does not have an electromagnetic valve, water is supplied when water is supplied from the conduit 4, and at the same time, the branch pipes 42 to 45 are each of the electromagnetic valves 52 to 55 according to a signal from the control unit 60. Is activated, only one of the electromagnetic valves permitted to pass water is opened, and water is passed through the opened branch pipe. From this, the injection part 3a will inject water from either of the circles C1-C4 formed by the injection port demonstrated above.

  Moreover, the plate part 28 provided in the inside of the injection part 3a is a part of the mechanism which recognizes the diameter of a tire, and as shown in FIG. 7 (arrow view in VII-VII of FIG. 3), it is substantially fan. A plate-shaped special plate 28a having a shape, a plate base 28b that is provided at the lower portion of the plate 28a, is fixed to the rotary shaft 26 that extends from the center of the base 2, and supports the plate 28a, and a plate A protection member 28c provided below the base 28b and on the opposite side (rear side) of the rotating shaft 26 side. FIG. 7 shows a state in which the plate portion 28 is in contact with the ground. That is, as described above, the rotational moment applied to the plate portion 28 is canceled and the stationary portion is brought into a stationary state, and the rotating bar 25 is located at the central portion of the groove portion 27.

  The shape of the plate 28a is formed in multiple stages so that the radius from the rotating shaft 26 becomes shorter sequentially from the front side in the rotating direction (here, four stages). That is, the plate 28a includes four arcs formed by four types of radii and four ends of a portion where the radius becomes shorter. In addition, let each radius be radius R1-R4 from the longest distance. Specifically, on the plate 28a, the rotation axis 26 rotates in the clockwise direction in FIG. 7, and from the front side where the plate 28a rotates, the arc l1 by the radius R1, the arc l2 by the radius R2, and the radius R3. An arc l4 having an arc l3 and a radius R4 is formed, and at the same time, end portions L1 to L4 of portions where the radius becomes shorter are formed. When the tire is placed on the groove 27, the plate base 28b pushes down the rotation bar 25 located at the center of the groove 27 in accordance with the diameter of the tire, whereby the rotating shaft 26 rotates. As shown in FIGS. 8A to 8D, the plate 28a is rotated while being supported. That is, FIGS. 8A to 8D show the state of the plate portion 28 that rotates as the tire is placed on the rotating bar 25 according to the amount of rotation. In the following description, the state of FIG. 7 is referred to as a “0th (zero) state”, the state of FIG. 8A is “first state”, the state of FIG. 8B is “second state”, and FIG. The state of (C) is defined as “third state”, and the state of FIG. 8 (D) is defined as “fourth state”. The protection member 28c protects the impact of contact between the plate portion 28 and the ground. The protective member 28c is preferably an elastic member. Moreover, the dashed-dotted line in FIG. 8 (A)-(D) shows the tire A-tire D from which diameter differs, respectively.

  As shown in FIG. 7 and FIGS. 8A to 8D, a first sensor portion 31a and a second sensor portion 31b are provided in the vicinity of the arc of the plate 28a. Have two photoelectric sensors in series. Referring to FIG. 7, the first sensor unit 31a is disposed at a position where the arc 11 is present, and the second sensor unit 31b is disposed at a position where the arc 13 is present. In this state (0th state), the first sensor unit 31a and the second sensor unit are configured such that the distance between the first sensor unit 31a and the end L1 is shorter than the distance between the second sensor unit 31b and L3. 31b is arranged.

  The photoelectric sensor X1 provided in the first sensor unit 31a is located between the radius R1 and the radius R2 as the distance from the rotation shaft 26, and the photoelectric sensor X2 provided in the first sensor unit 31a is the rotation shaft 26. Is located between radius R2 and radius R3. Further, the photoelectric sensor X3 provided in the second sensor unit 31b is located between the radius R3 and the radius R4 as a distance from the rotation shaft 26, and the photoelectric sensor X4 provided in the second sensor unit 31b is from the radius R4. Located on the rotating shaft 26 side. Further, the end portion L1 and the end portion L2 of the plate 28a are provided so that the distance from the photoelectric sensor X2 to the end portion L2 is longer than the distance from the photoelectric sensor X1 to the end portion L1. Further, the end portion L2 and the end portion L3 of the plate 28a are provided so that the distance from the photoelectric sensor X3 to the end portion L3 is longer than the distance from the photoelectric sensor X2 to the end portion L2. The end portion L3 and the end portion L4 of the plate 28a are provided so that the distance from the photoelectric sensor X4 to the end portion L4 is longer than the distance from the photoelectric sensor X3 to the end portion L3.

  By doing so, as will be described later in detail, when the plate 28a is rotated, the photoelectric sensors X1, X2, X3, and the photoelectric sensor X4 are operated in order of the photoelectric sensors X1 to X4 to detect them. By shifting the timing of each detection, the state of the plate 28a can be detected for each stage.

  In other words, the detection of the amount of rotation of the plate 28a is performed by moving the end portions L1 to L4 corresponding to the photoelectric sensors X1 to X4 by rotating the plate 28a, and using the moved end portions as photoelectric sensors. Is performed by detecting sequentially.

  The photoelectric sensors X1 to X4 used here are all optical sensors. These photoelectric sensors X1 to X4 detect the state of rotation of the plate 28a when the corresponding end portion passes by the rotation of the plate 28a. In this embodiment, a photo interrupter is used for the photoelectric sensor. Photosensors X1 to X4 shown in FIGS. 8A to 8D are light emitting units in the photo interrupter, and although not shown, the back sides of FIGS. 7 and 8A to 8D correspond to the respective light emitting units. Each of the light receiving sections is provided. The photoelectric sensors X1 to X4 detect the amount of rotation of the plate 28a by detecting whether or not the plate 28a is between the light emitting unit and the light receiving unit in each, and as a result, detect the amount of rotation of the plate 28. The photoelectric sensors X1 to X4 indicate “OFF” when it detects that the plate 28a is present, and the photoelectric sensors X1 to X4 indicate “ON” when it detects that the plate 28a is lost.

  Referring to FIG. 7, since each photoelectric sensor X1 to X4 detects that the plate 28a exists between them, all the photoelectric sensors X1 to X4 are OFF, and the plate portion 28 is in the 0th state. Recognize Referring to FIG. 8A, the entire plate portion 28 is rotated by the rotation of the rotating shaft 26 based on the tire pushing down the rotating bar 25, and the photoelectric sensors X2 to X4 have the plate 28a between them. In order to detect this, the photoelectric sensors X2 to X4 are turned off to recognize that they are in the first state. Referring to FIG. 8B, the entire plate portion 28 is rotated by the rotation of the rotation shaft 26 based on the tire pushing down the rotation bar 25, and the photoelectric sensors X3 and X4 have the plate 28a between them. In order to detect this, the photoelectric sensors X3 and X4 are turned OFF, and the second state is recognized. Referring to FIG. 8C, the entire plate portion 28 is rotated by the rotation of the rotating shaft 26 based on the tire pushing down the rotating bar 25, and the photoelectric sensor X4 detects that the plate 28a exists. For this reason, the photoelectric sensor X4 is turned off and recognizes that it is in the third state. With reference to FIG. 8D, the entire plate portion 28 is rotated by the rotation of the rotating shaft 26 based on the tire pushing down the rotating bar 25, and the photoelectric sensors X1 to X4 have the plate 28a therebetween. In order to detect that it is not, the photoelectric sensors X1 to X4 are turned on to recognize that it is in the fourth state. The ON / OFF signals of the photoelectric sensors X1 to X4 are automatically transmitted to the control unit 60 described later.

  As described above, with the special shape of the plate 28a and the arrangement of the photoelectric sensors X1 to X4 based on the special shape, the rotation bar 25 is pushed down in accordance with the tire diameter, and the rotation shaft 26 rotates in conjunction with the rotation bar 26. The entire plate portion 28 is rotated, and passage of the corresponding end portions L1 to L4 is detected in each of the photoelectric sensors X1 to X4. Accordingly, it is detected whether the plate 28a exists in the vicinity of the photoelectric sensors X1 to X4 (here, the plate 28a exists between the light emitting unit and the light receiving unit), and the photoelectric sensors X1 to X1 are detected. It is possible to recognize how much the plate portion 28 has been rotated by ON-OFF in each of X4. This is because the photoelectric sensor X1 first detects the passage of the end portion L1 and the second photoelectric sensor X2 detects the passage of the end portion L2 after the plate portion 28 that rotates together with the rotating shaft 26 starts to rotate. The plate 28a is formed so that the photoelectric sensor X3 can detect the passage of the end portion L3 third, and the photoelectric sensor X4 can sequentially detect the passage of the end portion L4, and the photoelectric sensor is based on the plate. This is because the sensors X1 to X4 are arranged. Accordingly, the tire cleaning device 1 can recognize the tire diameter from the rotation of the rotary bar 25 according to the tire diameter.

  The rotating shaft 26, the arm portion 24a and the arm portion 24b, the rotating bar 25, and the plate portion 28 are included in a mechanism for recognizing the tire diameter.

  In the tire cleaning device 1, as shown in FIG. 9, tire diameter data recognized by the ON / OFF states of the photoelectric sensors X <b> 1 to X <b> 4 is sent to the control unit 60, and the control unit 60 is based on the data. Transmits a signal to open any of the electromagnetic valves 52 to 55 described above, and in response to the signal, any of the electromagnetic valves 52 to 55 is operated to be opened, and the injection corresponding to the branch pipe through which water has passed. Water is jetted from the mouth. Specifically, for example, when all of the photoelectric sensors X1 to X4 are ON (in the fourth state in FIG. 8D), it is recognized that the tire D has the smallest diameter, and data to that effect is controlled. A signal indicating that water is supplied to the water supply device from the control unit 60 to the injection unit 3a and a signal indicating that only the electromagnetic valve 52 is opened (that is, water is passed) is transmitted to the water supply device. To the electromagnetic valve 52. Then, only the electromagnetic valve 52 is opened, and the branch pipe 42 is in a state that allows water to flow therethrough. Thereby, the branch pipe 41 having no electromagnetic valve and the branch pipe 42 in which only the electromagnetic valve 52 is opened are passed through the conduit 4 from the water supply device. Thereby, water is injected from the injection ports s1 to s3 and the injection ports t1 to t5 forming the circle C1 shown in FIG.

  Similarly, when the diameters of other tires are recognized, the control unit 60 transmits a signal indicating which of the electromagnetic valves 52 to 55 is to be opened to the corresponding electromagnetic valve according to the recognized diameter of the tire. Since the corresponding electromagnetic valve allows water to flow through the branch pipe based on the signal, water can be injected from an injection port appropriate for the diameter of the tire.

  In the above description, the injection unit 3 a has been described. However, the configuration of the injection port and the piping structure (including the electromagnetic valve) is the same for the injection unit 3 b, and the injection is performed according to the signal from the control unit 60. The operation to perform is the same. That is, the injection unit 3b receives a signal from the control unit 60 indicating that any one of the electromagnetic valves is to be opened, and accordingly, water is supplied from the injection port corresponding to the diameter of the tire together with the pair of injection units 3a. Spray. On the other hand, since there is only one mechanism for recognizing the diameter of the tire (plate portion 28) as the tire cleaning device 1, only the point that the injection portion 3b does not have the plate portion 28 is different.

  Next, an example of the operation of the entire tire cleaning device 1 will be described. FIG. 10 is a flowchart showing the operation of the tire cleaning device 1. Referring to FIG. 10, first, when the vehicle tire is placed on the groove portion 27 of the base portion 2, the rotating bar 25 is pushed down to the lower side of the groove portion 27 according to the tire diameter. Along with the rotation, the plate portion 28 fixed to the rotation shaft 26 rotates, and the photoelectric sensors X1 to X4 detect the amount (state) of rotation of the plate 28a. Based on this, the diameter of the tire is recognized (step S11; hereinafter, “step” is omitted). Next, tire diameter data recognized by the ON / OFF states of the photoelectric sensors X1 to X4 is automatically transmitted to the control unit 60 (S12), and the transmitted tire diameter data is received by the control unit 60. (S13). Based on the tire diameter data, the control unit 60 transmits a signal for opening to the electromagnetic valves to be opened in the injection unit 3a and the injection unit 3b (S14). The electromagnetic valves in the injection unit 3a and the injection unit 3b that have received the signal for opening are opened based on the signal, and water is supplied to the injection ports s1 to s3 that inject water in common with the branch pipe in which the electromagnetic valve is opened. Water is supplied to the branch pipe 41 from the water supply device, and water is injected from the injection port corresponding to the diameter of the tire (S15). In S15, since a signal for supplying water to the injection unit 3a and the injection unit 3b is also transmitted from the control unit 60 to the water supply device, tires in the injection unit 3a and the injection unit 3b are connected via the conduit 4. Water is injected from an injection port corresponding to the diameter of the vehicle, and the vehicle tire is washed.

  A specific example of the operation of the tire cleaning device 1 will be described below. First, a case of a so-called super large vehicle such as a dump truck will be described. The dump truck places the tire on the groove 27 of the base 2. In this case, since the rotation bar 25 does not rotate so much, the amount of rotation of the plate portion 28 that rotates through the rotation shaft 26 is small (for example, the state shown in FIG. 8A). Thereby, only the photoelectric sensor X1 is turned on, and it is recognized that it is in the first state. When the first state (tire diameter) is recognized by the photoelectric sensors X1 to X4, the control unit 60 is notified of the first state, and the control unit 60 is configured to pass only the branch pipe 45 through the electromagnetic valve 55. Send a signal to open only. Along with the transmission of the signal, a signal for supplying water to the injection unit 3a and the injection unit 3b is transmitted to the water supply device via the conduit 4. The water supply device that has received a signal to supply water supplies water to the injection unit 3a and the injection unit 3b, whereby only the branch pipe 41 and the branch pipe 45 are passed through. As a result, the injection ports s1 to s3 and Water is ejected from the ejection ports w1 to w9.

  Next, a case of a so-called large vehicle such as a truck will be described. The truck places the tire on the groove 27 of the base 2. In this case, since the rotation bar 25 rotates somewhat, the rotation amount of the plate portion 28 that rotates via the rotation shaft 26 also rotates larger than that of the super-large vehicle (for example, the state shown in FIG. 8B). ). Thereby, the photoelectric sensor X1 and the photoelectric sensor X2 are turned on, and it is recognized that it is in the second state. When the photoelectric sensor X1 to X4 recognizes the second state, the control unit 60 is notified that the second state is established, and the control unit 60 opens only the electromagnetic valve 54 so that only the branch pipe 44 is allowed to pass through. Send the signal. Along with the transmission of the signal, a signal for supplying water to the injection unit 3a and the injection unit 3b is transmitted to the water supply device via the conduit 4. The water supply device that has received a signal to supply water supplies water to the injection unit 3a and the injection unit 3b, whereby only the branch pipe 41 and the branch pipe 44 are passed through. As a result, the injection ports s1 to s3 and Water is ejected from the ejection ports v1 to v7.

  Next, a case of a so-called medium-sized vehicle such as an ordinary vehicle will be described. An ordinary automobile places a tire on the groove 27 of the base 2. In this case, the rotation bar 25 rotates relatively large. Therefore, the rotation amount of the plate portion 28 that rotates via the rotation shaft 26 also rotates more than the large vehicle (for example, the state shown in FIG. 8C). As a result, the photoelectric sensors X1 to X3 are turned on, and it is recognized that it is in the third state. When the third state is recognized by the photoelectric sensors X1 to X4, the control unit 60 is notified that the third state is established, and the control unit 60 opens only the electromagnetic valve 53 so that only the branch pipe 43 is allowed to pass through. Send the signal. Along with the transmission of the signal, a signal for supplying water to the injection unit 3a and the injection unit 3b is transmitted to the water supply device via the conduit 4. The water supply device that has received a signal to supply water supplies water to the injection unit 3a and the injection unit 3b, thereby allowing only the branch pipe 41 and the branch pipe 43 to pass through. As a result, the injection ports s1 to s3 and Water is ejected from the ejection ports u5 to u5. In this case, the tire cleaning device 1 is operating in the state shown in FIG.

  Next, a case of a so-called small vehicle such as a light vehicle will be described. A light vehicle places a tire on the groove 27 of the base 2. In this case, the rotating bar 25 rotates considerably (for example, the state shown in FIG. 8D). Therefore, the rotation amount of the plate portion 28 that rotates via the rotation shaft 26 also rotates more than that of the medium-sized vehicle. As a result, all of the photoelectric sensors X1 to X4 are turned on, and it is recognized that the state is the fourth state. When the fourth state is recognized by the photoelectric sensors X1 to X4, the control unit 60 is notified that the fourth state is established, and the control unit 60 opens only the electromagnetic valve 52 so that only the branch pipe 42 is passed. Send the signal. Along with the transmission of the signal, a signal for supplying water to the injection unit 3a and the injection unit 3b is transmitted to the water supply device via the conduit 4. The water supply device that has received a signal to supply water supplies water to the injection unit 3a and the injection unit 3b, whereby only the branch pipe 41 and the branch pipe 42 are passed through. As a result, the injection ports s1 to s3 and Water is injected from the injection ports t5 to t5.

  According to the above, when the tire is placed in the groove portion 27 of the base portion 2, the tire fits into the groove portion 27 at a depth corresponding to the diameter, and the rotation bar 25 is pushed down by the depth that the tire fits into the groove portion 27. The rotation shaft 26 rotates. Moreover, the rotation amount of the rotation bar 25 is detected by detecting the state of the plate portion 28 fixed to the rotated rotation shaft 26 by the plurality of photoelectric sensors X1 to X4, and the diameter of the tire is recognized. Then, based on the recognized tire diameter data, water is injected only from the injection ports 3a and 3b provided corresponding to the tire diameter. Thereby, it is possible to perform appropriate tire cleaning according to the diameter (size) of the tire. In addition, the mechanism for recognizing the diameter of the tire is also configured to be included in the base portion and the injection portion, so that the configuration can be small.

  In this embodiment, the case where the tire diameter is made to correspond to four stages of tires has been described. However, the present invention is not limited to this, and may be two to three stages or five stages or more. By doing so, it is possible to provide a tire cleaning device corresponding to the tire diameter at a desired stage.

  For example, when recognizing the diameter of a tire in two stages, the arc part is formed in two stages so that the shape of the plate is shortened in order from the front so that the radius becomes two stages, and the end of the part where the radius becomes short Two photoelectric sensors for detecting the above are provided. The arrangement of the photoelectric sensor follows the above embodiment, and the first photoelectric sensor is arranged between the long radius and the short radius in the direction of the rotation axis, and the second photoelectric sensor is arranged closer to the rotation axis 26 than the short radius. To do. Further, the distance between the first sensor and the end detected by the first sensor (the end of the portion where the radius becomes short) is the end detected by the second sensor and the second sensor ( It arrange | positions so that the distance with the edge of the part where a radius becomes short may become long. The injection port provided in the injection part is also arranged so as to form two circular shapes corresponding to the diameter of the tire, and in response to this, the electromagnetic valve is installed together with a branch pipe that does not have an electromagnetic valve and supplies water in common. Two branch pipes are provided. By doing so, the tire can be washed according to the two-stage tire diameter.

  On the other hand, when recognizing the tire diameter in five stages, the arc portion is formed in five stages so that the shape of the plate is shortened in order from the front so that the radius becomes five stages, and the end of the part where the radius becomes shorter In addition, five photoelectric sensors to be detected are provided. The arrangement of the five photoelectric sensors follows the above-described embodiment, and the first photoelectric sensor is arranged between the longest radius and the second longest radius in the rotation axis direction. Hereinafter, similarly, the second to fifth sensors are sequentially arranged between the radii that are successively shortened so that the ends of the portions where the radius of the plate is sequentially reduced can be detected. Further, the second sensor and the second sensor detect from the distance between the first sensor and the end detected by the first sensor (the end of the portion whose radius is shortened by one step). Arrange sequentially so that the distance to the next end is longer. Similarly, the distance between the photoelectric sensor and the end portion is sequentially increased. The injection port provided in the injection unit is also arranged so as to form five circles corresponding to the diameter of the tire, and correspondingly, the electromagnetic valve is installed together with a branch pipe that supplies water in common without having an electromagnetic valve. Five branches are provided. By doing so, the tire can be washed according to the tire diameter in five stages. In this manner, the tire can be washed according to the tire diameter even in six or more stages.

  In this embodiment, the case where the injection unit is erected so as to cover both ends of the base has been described. However, the present invention is not limited to this. For example, a caster or the like is provided below the injection unit to make it movable. Good.

  In this embodiment, the optical sensor is used as the sensor for detecting the state of the plate. However, the present invention is not limited to this, and the plate may be made of metal and a magnetic sensor may be used. .

  Further, although the position where the control unit 60 is provided is not particularly defined, for example, it may be built in the injection unit.

  Moreover, although the case where the liquid ejected from the ejection unit is water has been described, the present invention is not limited to this, and a cleaning liquid or a mixed liquid of water and the cleaning liquid may be used.

  Moreover, although the case where it comprised separately with an injection part and a water supply apparatus was demonstrated, it is good also as an integral structure, without restricting to this.

  Moreover, although the case where the tire cleaning apparatus is provided near the entrance / exit of the construction site has been described, the present invention is not limited to this, and the tire cleaning apparatus may be configured to be mounted and movable, for example, at a gas station.

  As mentioned above, although embodiment of this invention was described with reference to drawings, this invention is not limited to the thing of embodiment shown in figure. Various modifications and variations can be made to the illustrated embodiment within the same range or equivalent range as the present invention.

  DESCRIPTION OF SYMBOLS 1 Tire washing apparatus, 2 base part, 3a, 3b injection part, 4 conduit | pipe, 21a-21d slope, 22a 1st auxiliary stand, 22b 2nd auxiliary stand, 23a, 23b rotation support part, 24a, 24b arm part, 25 rotation bar , 26 Rotating shaft, 27 Groove part, 28 Plate part, 28a Plate, 28b Plate base, 28c Protection member, 31a First sensor part, 31b Second sensor part, 40 Connecting part, 40a Main pipe, 41-45 Branch pipe, 52-55 Electromagnetic sensor, 60 controller, l1-l4 arc, L1-L4 end, R1-R4 radius, s1-s3, t1-t5, u1-u5, v1-v7, w1-w9,100 injection port, V1-V4 Electromagnetic valve, X1-X4 photoelectric sensor.

Claims (1)

A base laid on the ground and recognizing the diameter of the tire by placing a vehicle tire;
A pair of jetting units that are respectively provided at both ends sandwiching the base, and jet the liquid in opposite directions;
An electromagnetic valve that controls a jetting range in the liquid from the jetting unit,
A tire cleaning device that controls the injection range of the liquid from the pair of injection units based on the diameter of the tire recognized by the base,
The pair of injection units includes a plurality of substantially circular injection port groups corresponding to the diameter of the tire.