JP6082349B2 - Tire cleaning device and wheelchair tire cleaning device - Google Patents

Description

The present invention relates to a tire cleaning device and a tire cleaning device for a wheelchair.

  Conventionally, as a device for cleaning a tire portion of a wheelchair that has become dirty due to use, there are devices disclosed in Patent Documents 1 and 2, for example. The wheelchair tire cleaning device of Patent Document 1 includes two rolling rollers for rotating the tire while supporting the tire, and a cylindrical brush is provided between the rolling rollers. By rotating, the ground contact surface of the tire is washed. The cylindrical brush is formed in a cylindrical shape by pinching the brush bristle in a spiral shape by sandwiching the lengthwise middle part of the bristle between two wires and twisting the wire. In addition, the tire cleaning device for a wheelchair of Patent Document 2 is provided with a fixed brush and a pressing roller so that the wheelchair does not move back and forth, a cylindrical brush that rotates in contact with the ground contact surface of the tire, and a side surface of the tire. A side brush that contacts and rotates is provided.

JP 2004-017733 A JP 2010-057625 A

  Conventional wheelchair tire cleaning devices generally have a problem that the cleaning effect is low because a cylindrical brush is used to clean the tire as shown in Patent Documents 1 and 2. That is, as described above, the cylindrical brush is fixed in a spiral shape by sandwiching the bristle between two wires and twisting it, so that the density of the bristle at the center portion fixed to the wire is high. However, since the bristles spread radially outward, the density at the outer peripheral edge is small. For this reason, even if the number of rotations of the cylindrical brush is increased, the frequency with which the brush bristles actually contact the ground contact surface of the tire is small, and thus the cleaning effect cannot be increased.

  In addition, since the conventional cylindrical brush performs cleaning by rotating the brush bristles in contact with the ground contact surface of the tire, the tip of the brush bristles in contact with the tire ground contact surface is bent so as to escape from the tire, For this reason, there has been a problem that earth and sand and dirt that have entered into the groove of the tire, adhering dust and the like pressed by the weight load are difficult to remove.

  On the other hand, wheelchair rental companies and nursing care facilities that have a large number of wheelchairs regularly clean wheelchair tires from the standpoint of hygiene. However, since the conventional tire cleaning device uses a cylindrical brush as described above, there is a problem that a high cleaning effect cannot be obtained, and it takes a long time for cleaning, and the cylindrical brush is used for cleaning many wheelchairs. When repeatedly used, there is a problem that the cleaning ability is further reduced due to wear or deformation of the brush hair. For this reason, in the conventional tire cleaning apparatus, the cylindrical brush has to be frequently replaced, and there is a problem that labor and cost for maintenance increase.

The present invention has been made in view of the above-described conventional problems, and provides a tire cleaning device and a wheelchair tire cleaning device capable of increasing the frequency with which brush hairs come into contact with the tire to enhance the tire cleaning effect. It is something to be offered.

The tire cleaning device of the present invention includes a semicircular curved frame, a groove-shaped semicircle having an outer end fixed to the inner side of the curved frame and an inner end extending so as to increase the density toward the curved center of the curved frame. And a tire cleaning brush having a semicircular end radius smaller than a cross-sectional radius of the tire to be cleaned, the tire cleaning brush having a groove-shaped semicircular end of the brush hair. A plurality of first oscillating support plates and a pair of oscillating support plates that are arranged in a series and are arranged in pairs so as to face each other in parallel and perform circular motions with different periods parallel to the opposing surface. In the meantime, the plurality of tire cleaning brushes are alternately fixed .

The wheelchair tire cleaning device of the present invention includes a drive shaft and a driven shaft that are provided in parallel to the frame and rotate in the same direction,
A pair of first oscillating plates, which are attached to the drive shaft and driven shaft via an eccentric shaft and are arranged at an interval in the axial direction so as to move simultaneously, and are arranged adjacent to each of the first oscillating plates. A pair of second oscillating plates that are attached via an eccentric shaft that is offset by 180 ° with respect to the eccentric shaft and that simultaneously perform circular movement;
A pair of first oscillating shafts connecting the pair of first oscillating plates with an interval in the longitudinal direction of the oscillating plate, and a pair of first oscillating plates between the pair of first oscillating plates. A pair of second oscillating shafts connected at the same interval at different positions from the shaft;
A pair of first swing support plates provided at an axial interval to connect the pair of first swing shafts, and the pair of first swing support plates adjacent to each of the pair of first swing support plates. A brush drive mechanism having a pair of second swing support plates for connecting the two swing shafts;
A semicircular curved frame, and a brush bristle having an outer end fixed inside the curved frame and an inner end extending toward the curved center of the curved frame to form a groove-shaped semicircular end. A brush assembly in which a tire cleaning brush formed with a radius of an end smaller than a cross-sectional radius of a tire to be cleaned is attached to a support structure;
Alternately, a support structure of one brush assembly is fixed between the pair of first swing support plates, and a support structure of another adjacent brush assembly is fixed between the pair of second swing support plates. A pair of left and right cleaning brush units is configured by arranging and arranging the semicircular ends of each brush assembly in a concave arc shape so as to follow the outer surface of the rotation radius of the tire.

  In the wheelchair tire cleaning apparatus, the cleaning brush unit includes a side cleaning brush for cleaning a side surface of the tire on one of the pair of first swing support plates and one of the pair of second swing support plates. It is preferable to provide.

  In the wheelchair tire cleaning apparatus, the pair of cleaning brush units are provided in two sets in the axial direction of the first and second coaxial axes so that a cleaning brush unit for cleaning the front wheels and a cleaning brush for cleaning the rear wheels are provided. Units can be configured.

  In the wheelchair tire cleaning apparatus, a front brush cleaning brush unit and a rear wheel cleaning brush unit are provided by providing a brush drive mechanism having the pair of cleaning brush units at the front and rear of the frame. Can be configured.

  In the tire cleaning device for a wheelchair, each brush assembly disposed between the first swing support plates and between the second swing support plates is inclined in the same direction with respect to the tire rotation radius line. It is preferable.

  In the wheelchair tire cleaning apparatus, it is preferable that the cleaning brush units are arranged such that the semicircular ends of the brush assemblies form the same concave arc shape.

  In the tire cleaning device for a wheelchair, it is preferable that the pair of cleaning brush units can adjust the distance between them in the axial direction of the first swing shaft and the second swing shaft.

  In the tire cleaning device for a wheelchair, it is preferable that the frame body includes a cleaning liquid tank in which a lower portion of the tire cleaning brush is immersed in a cleaning liquid.

  According to the tire cleaning brush of the present invention, a semicircular curved frame, an outer end is fixed inside the curved frame, and an inner end extends toward the curved center of the curved frame to form a groove-shaped semicircular end. Therefore, the density of the brush hair that contacts the tire can be increased, and the cleaning effect of the tire can be significantly increased. Further, since the radius of the semicircular end is smaller than the cross-sectional radius of the tire to be cleaned, the side surface of the tire can be effectively cleaned simultaneously with the ground contact surface of the tire.

  According to the tire cleaning device of the present invention, each of the first swing support plate and the second swing support plate provided in pairs so as to be opposed to each other in parallel and to perform circular motions with different periods parallel to the facing surface. A plurality of tire cleaning brushes are alternately fixed between the pair, so that the inner ends of the brush hairs forming the semicircular end scoop the outer surface of the tire by circular motion, and the scissors are washed. It is possible to remove earth and sand and dirt that have entered the groove, adhered dust that has been pressed by the weight load, and achieve a high cleaning effect.

  According to the wheelchair tire cleaning device of the present invention, when the wheelchair wheel is fitted to the semicircular end of the tire cleaning brush, the first and second swing supports that move circularly with a 180 ° period shift. Since the outer surface of the tire is scrubbed and scuffed by the bristles of the plurality of tire cleaning brushes arranged alternately between the plates, the lower outer peripheral surface of the tire can be effectively cleaned. In addition, since the circular tire cleaning brush acts to push the tire forward, the lower part of the tire moves forward and the wheel rotates, so the tire cleaning brush effectively cleans the entire circumference of the wheel. Can do.

It is a top view which shows one Example of the tire cleaning apparatus of the wheelchair in this invention. It is the front view which looked at FIG. 1 from the II-II direction. It is the side view which looked at FIG. 2 from the III direction. It is the side view which looked at FIG. 2 from IV direction. It is the top view which expanded and showed a part of FIG. (A) is a front view which shows an example of the tire washing brush in this invention, (b) is the top view which looked at (a) from the BB direction. (A) is a front view which shows an example of a brush assembly, (b) is a top view of the support structure which comprises (a). A pair of brushes between a pair of first swing support plates that circularly move in parallel and between a pair of second swing support plates that move circularly with a 180 ° period shift with respect to the first swing support plate. It is a perspective view of the washing brush unit constituted by attaching a solid. It is a side view which shows the state which is wash | cleaning the front wheel of a wheelchair. It is a side view which shows the state which wash | cleans the wheel of a wheelchair. It is a perspective view which shows the other Example of the cleaning brush unit which attached the side surface cleaning brush. It is a perspective view which shows the state which the side surface cleaning brush of the cleaning brush unit is cleaning the side surface of a tire. It is sectional drawing which looked at FIG. 12 from the XIII-XIII direction. It is a top view which shows the other Example of the tire cleaning apparatus of the wheelchair in this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 to 5 show an embodiment of a wheelchair tire cleaning apparatus according to the present invention. This wheelchair tire cleaning apparatus constitutes a brush drive mechanism W. FIG. The brush drive mechanism W is arranged in a rectangular frame 1 in the longitudinal direction of the frame 1 and is driven by a drive motor 2, and the width of the frame 1 with respect to the drive shaft 3. A driven shaft 4 arranged in parallel with a gap is provided. The drive shaft 3 and the driven shaft 4 are connected by a pulley 5 and a belt 6 and rotate in the same direction. Reference numeral 7 denotes a coupling, and 8 denotes a bearing.

  As shown in FIG. 5, a pair of first oscillating plates that circularly move vertically (up and down and forward) by being attached to the drive shaft 3 and the driven shaft 4 via an eccentric shaft 9 that is eccentric in the same direction as shown in FIG. 10a and 10b are provided at an interval in the axial direction, and at a position adjacent to the right side of each of the first rocking plates 10a and 10b, there is an offset of 180 ° with respect to the eccentric shaft 9. A pair of second oscillating plates 11a, 11b that are circularly moved vertically by being attached via the core shaft 9 'are provided. The eccentric distance between the eccentric shafts 9 and 9 'can be about 1 mm to 2 mm. In this case, the moving distance of the first and second swinging plates 11a and 11b due to the circular motion is 2 mm to 4 mm.

  A pair of first rocking shafts 12a and 12b are provided between the pair of first rocking plates 10a and 10b so as to be connected to each other at an interval in the longitudinal direction of the rocking plate. Between the moving plates 11a and 11b, a pair of second oscillating shafts 13a and 13b that are connected to each other with the same interval at positions different from the pair of first oscillating shafts 12a and 12b are provided.

  Further, as shown in FIG. 5, a pair of first swing support plates 14a, 14b spaced apart in the axial direction are provided so as to connect the pair of first swing shafts 12a, 12b. A pair of second swing support plates 15a and 15b for connecting the pair of second swing shafts 13a and 13b is provided adjacent to the right side of each of the swing support plates 14a and 14b.

  At this time, the pair of first swing support plates 14a and 14b is formed by connecting the first swing support plate 14a, which is tall on one side, and the back on the other side, as shown by the solid line in FIG. 7A and FIG. The first swing support plate 14b is low, and the pair of second swing support plates 15a and 15b is formed by the two-dot chain line in FIG. 7A and FIG. On the other hand, it consists of a second swing support plate 15a having a low height on one side and a second swing support plate 15b having a high height on the other side. That is, the adjacent first swing support plate 14a and the second swing support plate 15a have different heights, and the adjacent first swing support plate 14b and second swing support plate 15b have different heights. Yes.

  The tire cleaning brush 16 of the present invention is provided between the pair of first swing support plates 14a and 14b and between the pair of second swing support plates 15a and 15b in the brush drive mechanism W.

  FIG. 6 shows an example of the tire cleaning brush 16. The tire cleaning brush 16 has a semicircular curved frame 17, an outer end fixed to the inner side of the curved frame 17, and an inner end of the curved frame 17. The brush bristle 19 extends toward the center of the curve and forms a groove-like semicircular end 18. The radius of the semicircular end 18 is a radius R2 smaller than the cross-sectional radius R1 of the tire 20 to be cleaned. ing.

  Since the brush bristle 19 of the tire cleaning brush 16 increases in density toward the groove-shaped semicircular end 18, the groove 20 of the tire cleaning brush 16 is pressed against the tire 20 to clean the tire 20. As a result, the cleaning effect can be greatly enhanced as compared with a conventional cylindrical brush.

  In order to attach the tire cleaning brush 16 between the pair of first swing support plates 14a and 14b and between the pair of second swing support plates 15a and 15b, as shown in FIG. A support structure 21 is attached to form a brush assembly 22. The support structure 21 includes a curved support member 23 formed along the curved frame 17, and two curved support plates 24 and 25 provided so as to sandwich the tire cleaning brush 16 and the curved support member 23 in the front-rear direction. The support structure 21 is formed by a U-shaped channel material and is formed into a U shape, and supports the curved support member 23 and the support plates 24 and 25 sandwiched inside the U shape. The spot weld 27 is integrally assembled. A flange portion 28 for pressing the brush bristles 19 on the upper surface of the tire cleaning brush 16 having a semicircular cross section is formed on the upper edges of the support plates 24 and 25 opposite to each other. The U-shaped curved support member 23 is fixed to both end portions of the U-shaped curved support member 23 through screw holes 29 ′ by fixing screws 29.

  Then, as shown in FIG. 7A, the upper part of one end of the support frame 26 of one brush assembly 22 is fixed to the upper part of the tall first swing support plate 14a by a fixing screw 31 via a spacer 30. The lower end of the other end of the support frame 26 is fixed to the first swing support plate 14b having a short height by a fixing screw 32.

  As shown by a two-dot chain line, the brush assembly 22 arranged adjacent to the one brush assembly 22 has a lower part of one end of the support frame 26 fixed to the second swing support plate 15a having a short height. The upper end of the other end of the support frame 26 is fixed to the tall second swing support plate 15b with a fixing screw 31 via a spacer 30.

  In this way, the tire cleaning brush 16 is alternately mounted between the pair of first swing support plates 14a and 14b and between the pair of second swing support plates 15a and 15b, and is arranged as shown in FIG. Thus, the cleaning brush unit 33 is configured. According to the configuration of the cleaning brush unit 33 in FIG. 8, the pair of first swing support plates 14a and 14b, the pair of second swing support plates 15a and 15b, and the brush assembly 22 perform a circular motion indicated by an arrow U. They do not interfere with each other.

  The cleaning brush units 33a and 33a ′ shown in FIGS. 1 and 4 are cleaning brush units for front wheel cleaning for cleaning the front wheel 35 having a small diameter of the wheelchair 34 shown in FIG. 9, and are cleaning brush units for front wheel cleaning. The brush assemblies 22 of 33a and 33a ′ are arranged so as to form a concave arc shape V1 that is recessed along an arc of a diameter X1 of the front wheel 35 of the wheelchair 34. The concave arc shape V1 has a shape that is equal to or smaller than the circular arc of the diameter X1, that is, has a small dent.

  The cleaning brush units 33b and 33b ′ shown in FIGS. 1 and 3 are cleaning brush units for cleaning the rear wheels for cleaning the rear wheel 36 having a large diameter shown in FIG. 10, and cleaning brush units for cleaning the rear wheels. The brush assemblies 22 of 33b and 33b ′ are arranged so as to form a concave arc V2 that is recessed along an arc of a diameter X2 of the rear wheel 36 of the wheelchair 34. The concave arc shape V2 has a shape that is the same as or smaller than the arc of the diameter X2, that is, has a small recess.

  Therefore, the longitudinal intermediate portions of the pair of first swing support plates 14a and 14b and the pair of second swing support plates 15a and 15b, to which the brush assembly 22 is attached, have the concave portions as shown in FIG. It has a shape that is curved along the arcuate shapes V1 and V2.

  As described above, the tire cleaning brush 16 of the brush assembly 22 attached to the cleaning brush unit 33 in FIG. 8 operates so as to alternately protrude upward by the circular motion indicated by the arrow U. Therefore, the tire cleaning brush The tire 20 fitted to and supported by the sixteen semicircular ends 18 is effectively washed by the tire cleaning brush 16 protruding alternately.

  Further, at this time, since the tire cleaning brush 16 of the circularly moving brush assembly 22 acts to push the lower portion of the tire 20 forward, the lower portion of the tire 20 moves forward by the pushing force of the tire cleaning brush 16. Thus, the front wheel 35 shown in FIG. 9 and the rear wheel 36 shown in FIG. 10 are rotated in the T direction. As described above, the front wheel 35 and the rear wheel 36 are automatically rotated by the tire cleaning brush 16 so that the entire circumference of the front wheel 35 and the rear wheel 36 is effectively cleaned. At this time, the tire cleaning brush 16 of the present invention has a higher density at the inner end of the brush bristles 19, so that the normal bristle brush bristles 19 used for the cylindrical brush of the conventional tire cleaning apparatus are used. However, the strength of the inner end of the brush bristle 19 is increased, so that the front wheel 35 and the rear wheel 36 are reliably rotated.

  Further, in FIG. 8, each brush assembly 22 moves forward in the moving direction of the brush bristles 19 that contact the tire 20 by the circular movement of the cleaning brush unit 33 with respect to the rotation radius line S of the wheel. It is inclined and attached at the same inclination angle α. According to the researches of the present inventors, when the inclination angle α of the brush assembly 22 is selected to be around 15 °, the force for pushing the tire 20 is increased, so that the front wheel 35 of FIG. 9 and the rear wheel 36 of FIG. It has been found that the rotation can be performed more reliably.

  In the wheelchair cleaning apparatus shown in FIGS. 1 to 4, the cleaning brush unit 33a is fixed, and the cleaning brush unit 33a ′ and the cleaning brush units 33b and 33b ′ are shafts of the swing shafts 12a, 12b, 13a, and 13b. It is configured to be movable in the direction so that the intervals between the cleaning brush units 33a and 33a ′ and the cleaning brush units 33b and 33b ′ can be adjusted.

  As shown in FIG. 2, the frame 1 is provided with a cleaning liquid tank 37 in which the lower portions of the brush hairs 19 of all the brush assemblies 22 included in the cleaning brush unit 33 are immersed in the cleaning liquid 37a. ing.

  Next, the operation of the above embodiment will be described.

  In the wheelchair tire cleaning apparatus shown in FIGS. 1 to 5, the drive motor 2 is driven to rotate the drive shaft 3 and the driven shaft 4 at a rotational speed of about 100 to 3000 rpm. Then, a pair of first swing plates 10a and 10b attached to the drive shaft 3 and the driven shaft 4 via the eccentric shaft 9 shown in FIG. 5, and a pair attached similarly via the eccentric shaft 9 ′. The second oscillating plates 11a and 11b perform a vertical circular motion with a movement distance of 2 mm to 4 mm with a period shifted by 180 ° from each other.

  Further, the pair of first swinging shafts 12a and 12b provided between the pair of first swinging plates 10a and 10b perform a circular motion, whereby the pair of first swinging shafts 12a and 12b provided between the first swinging shafts 12a and 12b. The swing support plates 14a and 14b move circularly. Further, the pair of second swing shafts 13a and 13b provided between the pair of second swing plates 11a and 11b perform a circular motion with a period shifted by 180 ° from the first swing support plates 14a and 14b. The pair of second swing support plates 15a and 15b provided on the second swing shafts 13a and 13b perform a circular motion.

  As shown in FIG. 8, brush assembly 22 is alternately attached between the pair of first swing support plates 14a and 14b and between the pair of second swing support plates 15a and 15b, and the cleaning brush unit 33 is attached. Therefore, the brush assembly 22 supported between the pair of first swing support plates 14a and 14b and the brush assembly 22 supported between the pair of second swing support plates 15a and 15b. And circularly move vertically with a period shifted by 180 °.

  In order to clean the front wheel 35 of the wheelchair 34 shown in FIG. 9, the front wheel 35 of the wheelchair 34 is grooved in the tire cleaning brush 16 in the cleaning brush units 33a and 33a ′ for front wheel cleaning shown in FIGS. It mounts so that it may fit in the semicircle end 18 of a shape. At this time, if the distance between the left and right of the front wheel 35 does not match the distance between the cleaning brush units 33a and 33a ', the distance between the left and right of the cleaning brush units 33a and 33a' is matched with the distance between the left and right of the front wheel 35. Adjust.

  Subsequently, when the drive motor 2 is driven, the brush assembly 22 provided adjacent to each of the cleaning brush units 33a and 33a ′ moves circularly vertically with a period shifted by 180 ° from each other, and the brush of the tire cleaning brush 16 is moved. The inner end of the bristle 19 is washed so as to strike the lower outer peripheral surface of the tire 20 (FIG. 6). As a result, earth and sand and dirt that have entered the groove of the tire 20 and attached dust pressed by the load of weight are removed, and the front wheel 35 is effectively washed. Furthermore, since the plurality of tire cleaning brushes 16 circularly move and scrub the lower outer peripheral surface of the tire 20, a very high cleaning effect can be achieved as compared with the cleaning by the conventional rotating brush. For this reason, the cleaning time of the tire 20 can be greatly shortened.

  At this time, as shown in FIG. 6, each tire cleaning brush 16 is configured such that the density of the bristle 19 increases toward the semicircular end 18, and the density at the tip of the bristle 19 is higher than that of the conventional cylindrical brush. For example, it can be easily increased to several tens of times. Therefore, the tire cleaning brush 16 can remarkably improve the cleaning effect as compared with the conventional cylindrical brush. Further, as described above, since the density of the bristle 19 of the tire washing brush 16 increases toward the semicircular end 18, the washing liquid 37 a in the washing liquid tank 37 is better due to the capillary phenomenon of the brush bristles 19. Since it is supplied to the semicircular end 18, the cleaning effect of the tire 20 by the tire cleaning brush 16 is further enhanced.

  Further, the radius R2 of the groove-like semicircular end 18 of the tire cleaning brush 16 is smaller than the cross-sectional radius R1 of the tire to be cleaned. The side surface of the tire 20 can also be effectively cleaned by the tip of the brush bristles 19.

  Further, a plurality of brush assemblies 22 are curved and arranged like concave arcs V1 and V2 so as to correspond to the diameter X1 of the front wheel 35 shown in FIG. 9 and the diameter X2 of the rear wheel 36 shown in FIG. Therefore, the tire 20 is simultaneously cleaned by the plurality of tire cleaning brushes 16 that move circularly as indicated by the arrow U, and the cleaning effect is further enhanced.

  Further, since the tire cleaning brush 16 scoops the tire 20 by circular motion as described above, the front wheel 35 in FIG. 9 and the rear wheel in FIG. Since the tire 36 is pushed by the tire washing brush 16 and can be automatically rotated forward, the entire circumference of the front wheel 35 and the rear wheel 36 can be effectively washed. At this time, as shown in FIG. 8, the brush assembly 22 is moved forward by 15 degrees with respect to the rotational radius line S of the wheel, for example, in the forward direction in which the upper side of the tire cleaning brush 16 in contact with the tire 20 moves by circular motion. When the front / rear inclination angle α is provided, the force by which the bristles 19 push and rotate the tire 20 is increased, so that the tire 20 can be rotated more reliably.

  In order to clean the rear wheel 36 of the wheelchair 34 shown in FIG. 10, the rear wheel 36 of the wheelchair 34 is placed on the cleaning brush units 33b and 33b ′ for cleaning the rear wheel of FIGS. Thus, the front wheel 35 can be cleaned in the same manner as when the front wheel 35 is cleaned.

  FIG. 11 shows another embodiment of the cleaning brush unit 33 in which the side cleaning brush 38 is attached to the cleaning brush unit 33 shown in FIG. 8. The side cleaning brush 38 of the embodiment shown in FIG. A horizontal brush 40 is fixed by a fixture 41 on a horizontal portion 39a of an L-shaped mounting bracket 39, and a vertical portion 39b of the mounting bracket 39 is provided on the left and right outer sides of the cleaning brush unit 33. It is fixed via a bolt 42 to the curved intermediate portion of the swing support plate 14a and the second swing support plate 15b.

  As shown in FIG. 12, the side cleaning brush 38 has a horizontal brush 40 positioned above the tire cleaning brush 16 fixed to the first swing support plate 14a and the second swing support plate 15b. Further, the tip of the horizontal brush 40 has a length that extends to the upper side surface of the tire 20 or the side surface of the rim 43 placed so as to fit the semicircular end 18 of the tire cleaning brush 16.

  Further, as shown in FIG. 13, the horizontal brush 40 is tilted and fixed to the horizontal portion 39 a by the fixture 41 using an inclined washer 44, so that the tip of the horizontal brush 40 faces the side surface of the tire 20. The height direction position can be set.

  As shown in FIGS. 11 to 13, since the cleaning brush unit 33 includes the side surface cleaning brush 38, the tire cleaning brush 16 cleans the lower peripheral surface of the tire 20, and at the same time, The side surfaces of the rim 43 can be cleaned at the same time.

  The tire cleaning apparatus shown in the above embodiment includes the front wheel cleaning brush units 33a and 33a ′ and the rear wheel cleaning brush units 33b and 33b ′ in the brush drive mechanism W. It can be a compact configuration.

  FIG. 14 shows another embodiment of the tire cleaning device for a wheelchair 34 according to the present invention. In the embodiment of FIG. 14, the brush drive mechanisms W and W ′ having a pair of left and right cleaning brush units 33 are arranged in the frame. The case where the front and rear cleaning brush units 33c and 33d for cleaning the front wheels and the rear wheel cleaning are integrally provided by the front and rear of the body 1 is shown.

  In the front brush cleaning brush unit 33c of FIG. 14 and the plurality of brush assemblies 22 provided in the rear wheel cleaning brush unit 33d, the upper surface of the tire cleaning brush 16 has a large diameter. It arrange | positions so that the same concave arc shape V2 corresponding to the diameter X2 of the rear-wheel 36 may be formed. Further, the brush assembly 22 of the cleaning brush unit 33c for front wheel cleaning is inclined with an inclination angle α to the rear with respect to the rotation radius line S so as to rotate the lower portion of the front wheel 35 rearward. The brush assembly 22 of the cleaning brush unit 33d for cleaning the rear wheels is inclined with an inclination angle α forward with respect to the rotation radius line S so as to rotate the lower portion of the rear wheel 36 forward.

  The cleaning brush units 33c and 33d shown in FIG. 14 can also include the side cleaning brush 38 shown in FIGS.

  In order to clean the wheel of the wheelchair 34 according to the embodiment of FIG. 14, the front wheel 35 is fitted to the semicircular end 18 of the tire cleaning brush 16 of the cleaning brush unit 33c for front wheel cleaning, and the rear wheel 36 is used for rear wheel cleaning. The wheelchair 34 is placed on the tire cleaning device so as to be fitted to the semicircular end 18 of the tire cleaning brush 16 of the cleaning brush unit 33d.

  Subsequently, when the drive motor 2 shown in FIG. 1 is driven, the front wheel 35 and the rear wheel 36 are rotated by the tire cleaning brush 16 of the circularly moving brush assembly 22 as in the above-described embodiment, and the front wheel 35 and the rear wheel are rotated. Since the 36 tires 20 can be cleaned simultaneously, the wheel of the wheelchair 34 can be efficiently cleaned.

  At this time, the cleaning brush unit 33c for cleaning the front wheels and the cleaning brush unit 33d for cleaning the rear wheels have the same concave arc shape V2 corresponding to the diameter X2 of the front wheel 35 having a large diameter. Since the rear wheel 36 moves toward the lower part of the concave arc V2, the wheelchair 34 is automatically aligned and stabilized in the front-rear direction with respect to the tire cleaning device. There is no such thing as protruding.

  Here, the cleaning brush unit 33c for cleaning the front wheels and the cleaning brush unit 33d for cleaning the rear wheels are provided so that the distance between the front wheel 35 and the rear wheel 36 in the wheelchair 34 is minimum and maximum. By setting the respective longitudinal lengths and longitudinal intervals, the wheelchair 34 can be held on the tire washing device and stably washed in any wheelchair 34 having any axial distance.

  Further, the brush assembly 22 of the cleaning brush unit 33c for cleaning the front wheels is inclined rearward at an inclination angle α so as to rotate the lower portion of the front wheel 35 rearward, and the cleaning brush unit 33d for cleaning the rear wheels. Since the brush assembly 22 is inclined forward at an inclination angle α so as to rotate the lower portion of the rear wheel 36 forward, the force to move by the rotation of the front wheel 35 and the rear wheel 36 is canceled out. This also prevents the problem of the wheelchair 34 moving.

  In the embodiment of FIG. 14, the cleaning brush unit 33c for front wheel cleaning and the cleaning brush unit 33d for rear wheel cleaning have the same symmetrical structure, so that the rear wheel 36 is cleaned by the cleaning brush unit 33c for front wheel cleaning. The front wheel 35 can be cleaned by the cleaning brush unit 33d for cleaning the rear wheel. Therefore, since the wheelchair 34 can be entered on the tire cleaning device from any direction to perform the cleaning operation, usability can be improved. In addition, the tire cleaning device of the present invention can greatly reduce the height as compared with a tire cleaning device having a conventional cylindrical brush, so that the wheelchair 34 is pushed and placed on the tire cleaning device. The operation of taking out the wheelchair 34 on the tire cleaning device can be performed very easily.

  Furthermore, in the embodiment shown in FIG. 14, the front brush cleaning brush unit 33c and the rear wheel cleaning brush unit 33d have the same symmetrical structure, which facilitates manufacturing and reduces costs. Can do. In addition, by providing a switch, the front wheel 35 and the rear wheel 36 are simultaneously cleaned by the front wheel cleaning brush unit 33c and the rear wheel cleaning brush unit 33d, and one of the front wheel 35 and the rear wheel 36 is cleaned. You can also switch between

  In the above-described embodiment, the tire cleaning brush 16 shown in FIG. 6 is exemplified for the cleaning device for the tire 20 of the wheelchair 34. However, the tire cleaning brush 16 is not limited to the cleaning of the tire 20 of the wheelchair 34. Rental equipment, dealers, or facilities that handle a large number of cars, motorcycles, bicycles, various carts, etc., use them as a tire cleaning device to clean their tires, increasing the tire cleaning effect and shortening the cleaning time. can do.

  Moreover, in the said Example, it arrange | positions adjacent to said 1st rocking | fluctuation support plate 14a, 14b between a pair of 1st rocking | fluctuation support plate 14a, 14b which opposes in parallel and opposes a perpendicular | vertical circular motion. In addition, since the plurality of tire cleaning brushes 16 are alternately arranged between the pair of second swing support plates 15a and 15b that move in a circular manner with a 180 ° period shift with respect to the first swing support plates 14a and 14b. It is preferable that the outer surface of the tire 20 can be effectively cleaned substantially continuously by the plurality of tire cleaning brushes 16 that move circularly with a 180 ° period shift.

  However, for example, when only the first swing support plates 10a and 10b that are circularly moved and the tire cleaning brush 16 is provided between the first swing support plates 14a and 14b, the density is increased. The brush bristles 19 are preferred because the outer surface of the tire 20 can be washed and the cleaning effect can be enhanced.

The tire cleaning device and wheelchair tire cleaning device of the present invention are not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention.

  The tire cleaning brush of the present invention is used when a tire is cleaned by fitting a tire portion of a wheelchair to a groove-shaped semicircular end formed by brush bristles and operating the tire cleaning brush.

DESCRIPTION OF SYMBOLS 1 Frame 3 Drive shaft 4 Drive shaft 9, 9 'Eccentric shaft 10a, 10b 1st rocking plate 11a, 11b 2nd rocking plate 12a, 12b 1st rocking shaft 13a, 13b 2nd rocking shaft 14a, 14b 1st rocking | fluctuation support plate 15a, 15b 2nd rocking | fluctuation support plate 16 Tire washing brush 17 Curved frame 18 Semicircle end 19 Brush hair 20 Tire 21 Support structure 22 Brush assembly 33 Cleaning brush unit 33a, 33a 'Cleaning brush unit (For front wheel cleaning)
33b, 33b 'Cleaning brush unit (for rear wheel cleaning)
33c Cleaning brush unit (for front wheel cleaning)
33d Cleaning brush unit (for rear wheel cleaning)
34 Wheelchair 35 Front wheel (tire)
36 Rear wheel (tire)
37 Cleaning liquid tank 38 Side cleaning brush R1 Section radius R2 Radius U Circular motion S Rotating radius line W, W 'Brush drive mechanism V1, V2 Concave arc shape

Claims (9)

A semi-circular curved frame, and brush bristles having an outer end fixed inside the curved frame and an inner end extending toward the curved center of the curved frame so as to increase the density to form a groove-shaped semi-circular end. And a tire cleaning brush having a semicircular end radius smaller than a cross-sectional radius of the tire to be cleaned, the tire cleaning brushes are arranged in a plurality so that the groove-shaped semicircular ends of the brush hairs are connected to each other, and The plurality of tire washings between each pair of the first swing support plate and the second swing support plate that are provided in pairs so as to perform circular motions with different periods parallel to each other and parallel to the facing surface A tire cleaning device having brushes fixed alternately. A drive shaft and a driven shaft that are provided in parallel to the frame and rotate in the same direction;
A pair of first oscillating plates, which are attached to the drive shaft and driven shaft via an eccentric shaft and are arranged at an interval in the axial direction so as to move simultaneously, and are arranged adjacent to each of the first oscillating plates. A pair of second oscillating plates that are attached via an eccentric shaft that is offset by 180 ° with respect to the eccentric shaft and that simultaneously perform circular movement;
A pair of first oscillating shafts connecting the pair of first oscillating plates with an interval in the longitudinal direction of the oscillating plate, and a pair of first oscillating plates between the pair of first oscillating plates. A pair of second oscillating shafts connected at the same interval at different positions from the shaft;
A pair of first swing support plates provided at an axial interval to connect the pair of first swing shafts, and the pair of first swing support plates adjacent to each of the pair of first swing support plates. A brush drive mechanism having a pair of second swing support plates for connecting the two swing shafts;
A semicircular curved frame, and a brush bristle having an outer end fixed inside the curved frame and an inner end extending toward the curved center of the curved frame to form a groove-shaped semicircular end. A brush assembly in which a tire cleaning brush formed with a radius of an end smaller than a cross-sectional radius of a tire to be cleaned is attached to a support structure;
Alternately, a support structure of one brush assembly is fixed between the pair of first swing support plates, and a support structure of another adjacent brush assembly is fixed between the pair of second swing support plates. A wheelchair tire cleaning device comprising a pair of left and right cleaning brush units arranged and arranged in a concave arc shape so that a semicircular end of each brush assembly is along an outer surface of a tire's radius of rotation. The cleaning brush unit includes a side cleaning brush for cleaning a side surface of a tire on one of the pair of first swing support plates and one of the pair of second swing support plates. Item 2. A wheelchair tire cleaning apparatus according to Item 2 . A pair of the pair of cleaning brush units are provided in the axial direction of the first and second coaxial axes, thereby constituting a cleaning brush unit for cleaning the front wheel and a cleaning brush unit for cleaning the rear wheel. Item 2. A wheelchair tire cleaning apparatus according to Item 2 or 3 . Wherein by a pair of brush driving mechanism having a cleaning brush unit comprising before and after the frame, claim, characterized by being configured and cleaning brush unit for the front wheels cleaning, the cleaning brush unit for the rear wheels washed 2 or wheelchair tire cleaning apparatus according to 3. Each brush assembly disposed on the first pivot support plates and the second swing supporting plates are claims 2-5, characterized in that they are inclined in the same direction with respect to the rotation radius line of the tire The wheelchair tire cleaning device according to any one of the above. The wheelchair tire according to any one of claims 2 to 6 , wherein each of the cleaning brush units is disposed such that the semicircular ends of the brush assemblies form the same concave arc shape. Cleaning device. Cleaning brush unit forming the pair, the distance between each other according to any one of claims 2-7, characterized in that it is adjustable in the axial direction of the first swing axis and the second pivot shaft Wheelchair tire cleaning device. The wheel cleaning apparatus for a wheelchair according to any one of claims 2 to 8 , wherein the frame body includes a cleaning liquid tank in which a lower portion of the tire cleaning brush is immersed in a cleaning liquid.

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