JP2013158519A - Tire cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tire cleaner which eliminates the need for positioning a wheeled chair in its width direction, and is easy to adjust in positioning its front and rear cleaning brush rolls.SOLUTION: A wheeled chair tire cleaner 1 includes a front wheel cleaning brush roll 22 elongated in the width direction, and a rear wheel cleaning brush roll 12. Adjustment work is not required for positioning front and rear brush rolls 22, 12 to the right and left so as to fit the width distance of front and rear wheels, and the front and rear wheels are only required to rest on the front and rear brush rolls 22, 12. As to the adjustment for longitudinal distance between the front and rear brush rolls 22, 12, a front wheel cleaning unit 6 is visually slid longitudinally for positioning by operating a locking lever 26, so that the adjustment for the longitudinal distance can be visually executed, and the adjustment work for the longitudinal distance can be executed easily and accurately.

Description

  The present invention relates to a tire washer that can simultaneously wash a tire portion of each wheel of a wheelchair or a walking assistance vehicle. More specifically, the present invention relates to a tire washer that does not require positioning in the width direction when installing a wheelchair or the like to be cleaned, and can easily adjust the position of the front and rear cleaning brush rolls according to the front and rear tire pitches.

  Various types of tire cleaning apparatuses that simultaneously clean the front and rear tires of a wheelchair have been proposed. The basic structure of these tire cleaning devices is the same, and a pair of left and right front wheel cleaning rotary brushes and a pair of left and right rear wheel cleaning rotary brushes (brush rolls) are arranged before and after the device mount. A wheelchair to be cleaned is installed so that the four wheels are placed on the wheel, and in this state, each rotary brush immersed in the cleaning liquid is rotationally driven to brush the tire of each wheel.

  Patent Document 1 uses a bobbin-shaped rotary brush having a U-shaped groove that is the same as or wider than the wheel width so that the tire tread can be cleaned together with the tire tread. A tire cleaning apparatus has been proposed. A pair of rotary brushes are arranged on the front and rear sides so that the left and right intervals and the front and rear intervals can be adjusted.

JP 2007-82883 A

  The conventional tire cleaning apparatus has the following problems to be solved. First, the wheelchair must be lifted and installed such that each tire is placed on each rotary brush of the tire cleaning device. It is not easy to install a wheelchair with a heavy weight lifted by an operator and positioning each of the four wheels on a rotary brush. In particular, in the case of a rotary brush having a U-shaped groove as in Patent Document 1, it is necessary to accurately position the tire of each wheel so as to enter the groove, and installation work can be easily performed. May not be possible.

  Moreover, since the front-rear wheel spacing and the left-right wheel spacing may vary depending on the wheelchair, it is necessary to adjust the front-rear spacing and the left-right spacing of the rotary brush so as to be the corresponding spacing. For example, there is known a method in which a handle attached to the front end of a tire cleaning device is rotated to adjust the distance between the front and rear rotary brushes via a linear motion mechanism such as a ball screw. However, with such an adjustment mechanism, the work cannot be performed while directly confirming the installation state of the front and rear wheels visually, and therefore, the adjustment work may not be performed in a short time.

  Further, in order to clean both side surfaces of the tire, a U-shaped rotary brush is conventionally used as in Patent Document 1. Or what wash | cleans by applying a brush to the both sides | surfaces of the tire mounted on the rotary brush is also known. However, in general, a deep groove-like part is formed between the side surface of the tire and the wheel rim to which the tire is attached, and foreign matter adhering to the bottom of this part is reliably cleaned. Often you can't.

  Further, in a walking assistance vehicle or the like to be cleaned, there are cases where each of the front or rear wheels is a double wheel (a double wheel) in which a pair of wheels are connected. It is difficult to clean the tire side surfaces, particularly the inner side surfaces, of such a table wheel with a conventional brush for cleaning the tire side surfaces.

  On the other hand, the rotary brush rotates while being immersed in a cleaning liquid pan (or cleaning liquid tank) in which a lower part or the whole of the cleaning brush is disposed, and the tire is brush cleaned with the cleaning liquid. . When the cleaning liquid becomes very dirty, it is necessary to replace the cleaning liquid. In order to replace the cleaning liquid, the cleaning liquid can be easily replaced by pulling out the cleaning liquid pan, discarding the dirty cleaning liquid, adding a new cleaning liquid, and returning the cleaning liquid pan to the original position again. However, if an attempt is made to pull out the cleaning liquid pan in which the rotary brush is immersed, the cleaning liquid pan interferes with the rotary brush and cannot be pulled out.

  In addition, when the cleaning liquid pan is put in and out for replacement of the cleaning liquid, the cleaning liquid pan shakes and the cleaning liquid spills out, and the cleaning liquid is wasted. In addition, the cleaning liquid is agitated and entraps a large amount of air, and a large amount of bubbles are generated to contaminate the surroundings.

  In view of these points, the problem of the present invention is that positioning in the width direction is unnecessary when installing a wheelchair or the like to be cleaned, and it is easy to adjust the position of the front and rear cleaning brush rolls according to the front and rear tire pitches. It is to propose a tire washer that can be performed.

  Another object of the present invention is to propose a tire washer capable of positioning and attaching a side brush cleaning tool for cleaning both side surfaces of a wheel at a position corresponding to the distance between the left and right wheels by a simple operation. .

  Furthermore, the subject of this invention is providing the tire washing machine provided with the side brush washing | cleaning tool which can wash | clean the tire side surface reliably even in the case of a double wheel.

  Furthermore, the subject of this invention is providing the tire washing machine provided with the detachable washing | cleaning liquid pan which can perform the operation | work etc. which replace | exchange a washing | cleaning liquid easily.

  In addition to this, an object of the present invention is to propose a tire washer having a washing liquid pan capable of suppressing leakage and bubbling of the washing liquid when the washing liquid pan is replaced or slid during tire washing.

  In order to solve the above-described problems, the present invention is characterized in that a tire washer that cleans front and rear wheels in a wheelchair or a walking assistance vehicle has the following configuration. The reference numerals in parentheses are used in the embodiments of the present invention, are added for the purpose of facilitating understanding, and are intended to limit the present invention to the embodiments. is not.

The tire washer (1) of the present invention is
It has a gantry (3), cleaning liquid pans (8, 9), a front wheel cleaning unit (6) and a rear wheel cleaning unit (7).
The rear wheel cleaning unit (7) is mounted on the gantry (3) in a fixed state in a predetermined position in the front-rear direction,
The front wheel cleaning unit (6) is mounted on the gantry (3) so as to be slidable in the front-rear direction at a position on the front side of the rear wheel cleaning unit (7).
The rear wheel cleaning unit (7) includes a rear wheel cleaning brush roll (12) extending horizontally in the width direction, and a rotatable rear wheel support roll (13) extending parallel to the rear wheel cleaning brush roll (12). And at least the lower part of the rear wheel cleaning brush roll (12) is located in the cleaning liquid pan (9),
The front wheel cleaning unit (6) includes a front wheel cleaning brush roll (22) extending horizontally in the width direction, a rotatable front wheel support roll (23) extending parallel to the front wheel cleaning brush roll (22), and the front wheel cleaning A lock lever (26) that is manually operated to lock the unit (6) to the gantry (3) at a predetermined sliding position in the front-rear direction, and at least a lower portion of the front wheel cleaning brush roll (22) Located in the washing liquid pan (8),
The lock lever (26) is disposed at one end in the width direction of the front wheel cleaning unit (6),
Each of the front wheel cleaning brush roll (22) and the rear wheel cleaning brush roll (12) has a roll body (12b, 22b) and a predetermined length over the entire length in the circular outer peripheral surface of the roll body. It is characterized by having a bundle of brushes (12c, 22c) planted at a density.

  In the tire washer of the present invention, as the front wheel cleaning brush roll and the rear wheel cleaning brush roll, those in which bundled brushes are planted over the entire length direction are used. Thus, since the long brush roll is spanned in the width direction in the front and rear, it is not necessary to adjust the front and rear brush rolls to the left and right so as to correspond to the left and right spacing of the front wheels and the left and right spacing of the rear wheels. Further, it is only necessary to place the front wheel and the rear wheel on the front and rear brush rolls, and positioning in the left-right direction is unnecessary. Therefore, it is not necessary to lift the heavy wheelchair and position the left and right wheel tires on the left and right brush rolls.

  In addition, when adjusting the distance between the front wheel cleaning brush roll and the rear wheel cleaning brush roll to match the tire distance between the front and rear wheels of the wheelchair to be cleaned, the lock lever attached to the end in the width direction is operated. Then, the lock is released and the front wheel cleaning unit is actually slid while sliding in the front-rear direction, and the lock lever is operated at the positioned slide position to return to the locked state. Since the front-rear interval adjustment can be performed while visually observing, the front-rear interval adjustment operation can be performed easily and accurately.

Next, in the tire washer (1) of the present invention,
A side brush cleaning tool (30) for cleaning both sides of the wheel tire and both sides between the tire and the wheel rim;
The front wheel cleaning unit (6) includes a front wheel side cleaning tool mounting portion (27) to which the side brush cleaning tool (30) can be attached in a removable state at a plurality of positions in the width direction.
The rear wheel cleaning unit (7) includes a rear wheel side cleaning tool mounting portion (17) to which the side brush cleaning tool (30) can be mounted in a removable state at a plurality of positions in the width direction.
The side brush cleaning tool (30) is arranged in a state where the hair tips face each other from the width direction in a state where the side brush cleaning tool (30) is mounted on the front wheel side cleaning tool mounting portion (27) or the rear wheel side cleaning tool mounting portion (17). A pair of left and right side brushes (33L, 33R) and a manual operation member (34) capable of opening and closing these side brushes (33L, 33R) are provided.

  A side brush cleaning tool capable of sandwiching a wheel tire from both sides can be attached to and detached from the gantry, and the mounting position can be changed to a position in the width direction. Therefore, the front wheel and rear wheel of the wheelchair to be cleaned are respectively placed on the front wheel cleaning brush roll and front wheel support roll of the front wheel cleaning unit, and on the rear wheel cleaning brush roll and rear wheel support roll of the rear wheel cleaning unit. After loading, the side brush of each side brush cleaning tool is opened, and the side brush cleaning tool can be attached to a position where the tire of each wheel is sandwiched from both sides in this state. As a result, it is possible to easily form a state in which each side brush cleaning tool is positioned and arranged with respect to each wheel. In other words, the side brush cleaning tool can be easily positioned.

Here, the tire washer (1) of the present invention is
A dual-type side brush cleaning tool (40) for cleaning both side portions of each wheel in a double-type wheel and both side portions between each tire and each wheel rim;
The double side brush cleaning tool (40) can be attached to the front wheel side cleaning tool mounting part (27) or the rear wheel side cleaning tool mounting part (17) in a removable state.
The pair of side brush cleaning tools (40) are arranged in parallel in the width direction in a state where they are attached to the front wheel side cleaning tool mounting portion (27) and the rear wheel side cleaning tool mounting portion (17). Side brush (43L, 43R)
Each of the side brushes (43L, 43R) includes an inner brush (42) and an outer brush (41) that are arranged in a state where the hair ends face each other from the width direction,
The dual-type side brush cleaning tool (40) includes a manual operation member (34) capable of opening and closing the pair of side brushes (43L, 43R) in the width direction.

  By using such a double side brush cleaning tool, it is possible to easily and reliably perform a cleaning operation on the tire side surface of the dual type wheel, particularly a cleaning operation on the inner side surface of the tire, which has been impossible in the past.

In the side brush cleaning tool (30) used in the tire cleaning machine (1) of the present invention,
The side brushes (33L, 33R) are linear in the front-rear direction at a predetermined interval in the vertical direction when attached to the rear wheel side cleaning tool mounting portion (17) or the front wheel side cleaning tool mounting portion (27). An upper brush row (38a), a central brush row (38b) and a lower brush row (38c) arranged in
In each brush row (38a to 38c), a bundle of brushes is arranged continuously and linearly in the front-rear direction,
The brush tip lengths of the upper brush row (38a) and the lower brush row (38c) are longer than the brush tip length of the central brush row (38b).

  When the contour shape of the hair tip is set in this manner, the bottom of the deep groove portion between the tire side surface and the wheel rim in each tire can be reliably cleaned.

Next, the tire washer (1) of the present invention is
The cleaning liquid pan includes a front wheel cleaning liquid pan (8) for the front wheel cleaning brush roll, and a rear wheel cleaning liquid pan (9) for the rear wheel cleaning brush roll,
The front wheel cleaning liquid pan (8) can be removed from the front wheel cleaning unit (6) by sliding in a horizontal position along an inclined surface (62b) inclined downward toward the front. ,
The rear wheel washing liquid pan (9) is slidable in a horizontal position along the inclined surface (62b) inclined downward toward the rear, and can be removed rearward from the gantry (3). It is characterized by.

  Each cleaning liquid pan slides in an oblique direction away from each cleaning brush roll while maintaining a horizontal posture. Therefore, if the inclination angle is set appropriately, it is possible to avoid that each cleaning liquid pan interferes with each cleaning brush roll when each cleaning liquid pan is pulled out. Further, in order to draw out along the inclined surface in this way, it is only necessary to form inclined surfaces with complementary shapes on the bottom surface of the cleaning liquid pan and the apparatus base, respectively, so that the structure is very simple.

Here, each of the front wheel cleaning liquid pan (8) and the rear wheel cleaning liquid pan (9) used in the tire cleaning machine (1) of the present invention is a cuboid-shaped pan having a predetermined thickness,
The top surface of the bread has a front end portion and a rear end portion covered with a front lid (51) and a rear lid (52) having a predetermined width, and an opening (53) that opens upward between them. )
The interior of the bread is divided into a front compartment (56a) by a front vertical partition plate (54) and a rear vertical partition plate (55) extending in the width direction at a predetermined interval between the top surface and the bottom surface. , Partitioned into a central compartment (56b) and a rear compartment (56c),
The front compartment (56a) and the central compartment (56b) communicate with each other through a communication hole formed in the front vertical partition plate (54) or upper and lower portions of the front vertical partition plate (54). And
Between the rear compartment (56c) and the central compartment (56b), a communication hole formed in the rear vertical partition plate (55) or an upper and lower portion of the rear vertical partition plate (55). Communicated,
The front wheel cleaning brush roll (22) or the rear wheel cleaning brush roll (12) is inserted into the pan from the opening (53).

  According to this configuration, it is possible to prevent the cleaning liquid from spilling out and spilling when the cleaning liquid pan is inserted or removed, and to reduce the amount of the cleaning liquid consumed in vain. In addition, it is expected to suppress the foaming of the cleaning liquid when the cleaning brush roll rotates in the state where it is immersed in the cleaning liquid stored in each cleaning liquid pan. .

It is a perspective view which shows embodiment of the wheelchair tire washing machine to which this invention is applied, and shows the state which is wash | cleaning a wheelchair. It is a perspective view which shows the wheelchair tire washing machine of FIG. (A) is a schematic longitudinal cross-sectional view of the wheelchair tire washing machine of FIG. 1, (b) is a top view of a rear-wheel washing | cleaning liquid pan. It is a fragmentary perspective view which shows the washing | cleaning unit before and behind the wheelchair tire washing machine of FIG. (A)-(e) is explanatory drawing which shows the perspective view which shows a side brush cleaning tool, a side view, a rear view, a cross section, and a use condition. (A)-(e) is explanatory drawing which shows the perspective view, side view, back view, cross section, and use condition which show a duplex side brush cleaning tool.

  Embodiments of a tire washer to which the present invention is applied will be described below with reference to the drawings. In the following description, the case of washing a wheelchair will be described as an example. However, the tire washing machine of the present invention is used for four-wheeled vehicles other than wheelchairs such as walking aids and other light vehicles having a plurality of wheels. It can also be used for cleaning.

(overall structure)
FIG. 1 is a perspective view showing a wheelchair tire washer according to an embodiment of the present invention, showing a state where a wheelchair tire is being washed, and FIG. 2 is a perspective view showing a wheelchair tire washer. If it demonstrates with reference to these figures, the wheelchair tire washing machine 1 is provided with the base 3 of the rectangular outline with the caster 2 in the four corners of a back surface. A vertical support column 4 stands on the left corner of the gantry 3 at the front end thereof, and an operation box 5 is attached to the upper end thereof. The operation box 5 includes a timer 5a, a start button 5b, and an emergency stop button 5c.

  On the upper side of the upper surface 3a of the gantry 3, a front wheel cleaning unit 6 is disposed at a front portion thereof, and a rear wheel cleaning unit 7 is disposed on the rear side thereof. The front wheel cleaning unit 6 is mounted on the gantry 3 so as to be slidable in the front-rear direction Y, and a front wheel cleaning liquid pan 8 is attached to the lower portion of the front wheel cleaning unit 6. The rear wheel cleaning unit 7 is mounted on the gantry 3 while being fixed at a fixed position in the front-rear direction Y, and a rear wheel cleaning liquid pan 9 is disposed on the lower gantry upper surface 3a.

(Rear wheel cleaning unit)
3A and 3B are a schematic longitudinal sectional view of the wheelchair tire washer 1 and a plan view of the rear wheel cleaning liquid pan, and FIG. 4 is a schematic perspective view showing the structures of the front wheel cleaning unit 6 and the rear wheel cleaning unit 7. FIG. First, the structure of the fixed-side rear wheel cleaning unit 7 will be described with reference to FIGS. The rear wheel cleaning unit 7 includes vertical support plates 11L and 11R fixed to the left and right edges of the gantry 3, and a rear wheel cleaning that extends horizontally in the width direction X between the vertical support plates 11L and 11R. The brush roll 12 is spanned so that rotation is possible. A rear wheel support roll 13 is arranged in parallel with a predetermined interval on the front side of the rear wheel cleaning brush roll 12, and the rear wheel support roll 13 is also rotatably spanned between the vertical support plates 11L and 11R. Has been. A rotation drive mechanism 14 (see FIG. 4) for rotating the rear wheel cleaning brush roll 12 is attached to the outer surface of the right vertical support plate 11R. The rotation drive mechanism 14 includes a motor and a speed reducer. Further, a cover 15R is attached to the vertical support plate 11R, and the bearing portion and the rotation drive mechanism 14 are covered and hidden. Similarly, a cover 15L is also attached to the left vertical support plate 11L, and the bearing portion is obscured (the cover is omitted in FIG. 4).

  The rear wheel cleaning brush roll 12 includes a left brush roll 12L and a right brush roll 12R having the same structure attached to the roll rotation shaft 12a. These brush rolls 12L and 12R are composed of a cylindrical roll body 12b and a large number of bundled brushes 12c planted at a predetermined density on the respective circular outer peripheral surfaces of the roll body 12b. The rear wheel cleaning brush roll 12 is a roll having a length that extends over substantially the entire width in the width direction X of the gantry 3. The roll body 12b is obtained by fixing the half of the cylinder to each other, and the replacement work is easy. As can be seen from FIG. 3, the rear wheel cleaning brush roll 12 is disposed at a height position where the brush located under the rear wheel cleaning brush roll 12 is immersed in the cleaning liquid stored in the rear wheel cleaning liquid pan 9. Further, these rolls are arranged so that the height position of the brush tip on the upper side of the rear wheel cleaning brush roll 12 is substantially the same height position as the outer peripheral surface on the upper side of the rear wheel support roll 13. Specifically, these height relationships are set taking into account the bending and falling of the brush due to the weight of the wheelchair.

(Front wheel cleaning unit)
Next, the front wheel cleaning unit 6 will be described with reference to FIGS. 2, 3 and 4. The front wheel cleaning unit 6 includes a slidable unit frame 20 that can slide in the front-rear direction Y along the upper surface 3 a of the gantry 3. The sliding unit frame 20 includes a rectangular bottom plate 20a extending horizontally across the entire width in the gantry width direction along the upper surface 3a, and left and right vertical support plates 21L and 21R extending vertically upward from both ends. It has. Guide rails 3L and 3R extending in the front-rear direction Y are attached to both side edge portions of the upper surface 3a of the gantry 3, and the slidable unit frame 20 is slidable in the front-rear direction Y along these. Further, the upper portion of the bottom plate 20a of the slide type unit frame 20 is a mounting portion of the front wheel cleaning liquid pan 8, and the front wheel cleaning liquid pan 8 is integrated with the slide type unit frame 20 (that is, together with the front wheel cleaning unit 6). Slide in the front-rear direction Y.

  Between the left and right vertical support plates 21L and 21R, a front wheel cleaning brush roll 22 extending horizontally in the width direction X is rotatably spanned. A front wheel support roll 23 is arranged in parallel behind the front wheel cleaning brush roll 22 at a predetermined interval, and the front wheel support roll 23 is also rotatably spanned between the vertical support plates 21L and 21R. Yes. A rotational drive mechanism 24 for rotationally driving the front wheel cleaning brush roll 22 is attached to the outer surface of the right vertical support plate 21R. The rotation drive mechanism 24 includes a motor and a speed reducer. Further, a cover 25R is attached to the vertical support plate 21R, and the bearing portion and the rotation drive mechanism 24 are covered. Similarly, a cover 25L is attached to the left vertical support plate 21L, and the bearing portion is covered and hidden.

  The front wheel cleaning brush roll 22 has the same structure as that of the rear wheel cleaning brush roll 12, and includes a left brush roll 22L and a right brush roll 22R having the same structure attached to the roll rotation shaft 22a. These brush rolls 22L and 22R are composed of a cylindrical roll body 22b and a large number of bundled brushes 22c planted at a predetermined density on the respective circular outer peripheral surfaces of the roll body 22b. The front wheel cleaning brush roll 22 is a roll having a length that extends over substantially the entire width in the width direction X of the gantry 3. The roll main body 22b is obtained by fixing the half of the cylinder to each other, and the replacement work is easy. The front wheel cleaning brush roll 22 is disposed at a height position where the brush located below the front wheel cleaning brush roll 22 is immersed in the cleaning liquid stored in the front wheel cleaning liquid pan 8. Further, these rolls are arranged so that the height position of the brush tip on the upper side of the front wheel cleaning brush roll 22 is almost the same height position as the outer peripheral surface on the upper side of the front wheel support roll 23. These height relationships are also set in consideration of the bending and falling of the brush due to the weight of the wheelchair, as in the case of the rear wheel side.

  Here, on the left vertical support plate 21L of the slide type unit frame 20, a lock lever 26 that is operated to lock the front wheel cleaning unit 6 at a predetermined slide position in the front-rear direction Y is disposed. When the lock lever 26 is operated in the unlocking direction, the lock between the sliding unit frame 20 of the front wheel cleaning unit 6 and the mount 3 is released, and the front wheel cleaning unit 6 can be slid in the front-rear direction. By sliding the front wheel cleaning unit 6 in the front-rear direction, the front wheel cleaning brush roll 22 moves back and forth with respect to the fixed-side rear wheel cleaning brush roll 12, and the interval between them can be adjusted. When the lock lever 26 is operated in the locking direction at a predetermined slide position, the front wheel cleaning unit 6 is fixed to the gantry 3 at that position.

  When the operator lifts the wheelchair 100 to be cleaned and places the wheelchair 100 on the front and rear cleaning units 6 and 7, there is no need for positioning in the left-right direction. That is, since the front and rear cleaning brush rolls 12 and 22 are sufficiently long in the width direction X, the pair of left and right wheels on the front and rear of the wheelchair can be placed on the front and rear cleaning brush rolls 12 and 22 regardless of the distance between the left and right wheels. Thereafter, at the position on the left side of the wheelchair tire washer 1, the front wheel washing unit 6 is slid in the front-rear direction by operating the lock lever 26 while visually checking the front and rear tires so that the front-rear wheel spacing is adjusted. The distance between the front and rear cleaning brush rolls 12 and 22 can be adjusted. Therefore, the positioning operation in the front-rear direction can be performed easily and accurately.

(Side brush cleaning tool)
Next, as shown in FIGS. 1, 2, and 4, the front and rear cleaning units 6 and 7 can be attached and detached with side brush cleaning tools 30 for brush cleaning both side surfaces of the wheel tire of the wheelchair 100. It is attached with. In order to clean the tire side surfaces of the four wheels of the wheelchair 100, a pair of side brush cleaning tools 30 are attached to the front wheel cleaning unit 6 and the rear wheel cleaning unit 7, respectively, as shown in FIGS.

  In the front wheel cleaning unit 6, a frame plate 27 for attaching a cleaning tool is horizontally stretched in the width direction X between the left and right vertical support plates 21 </ b> L and 21 </ b> R at the front portion thereof. The frame plate 27 has an L-shaped cross section, and includes a front inclined surface 27a inclined forward and a rear inclined surface 27b inclined backward. Attachment holes 27c are formed in the front inclined surface 27a at regular intervals along the length direction (width direction X). A frame plate 17 having the same structure is also attached to the rear wheel cleaning unit 7 between the left and right vertical support plates 11L and 11R in the reverse direction, and this frame plate 17 is also provided with a rear inclined surface 17a. The front inclined surface 17b and the mounting hole 17c are provided.

  FIGS. 5A to 5E are a perspective view, a side view, a rear view, a cross section, and an explanatory view showing a use state of the side brush cleaning tool 30. FIG. Referring to these drawings, the side brush cleaning tool 30 includes a cylindrical grip 31, a support bracket 32 fixed to the front end of the grip 31, and extends in parallel forward from both sides of the support bracket 32. The left and right side brushes 33L and 33R are provided. The side brushes 33L and 33R are arranged to face each other with their hair ends facing each other. The rear ends of the side brushes 33L and 33R are attached to the support bracket 32 so as to be openable and closable in the left and right directions indicated by arrows, and are always urged toward each other by spring members (not shown). Has been.

  A pushing plate 34 having an inverted triangular contour is vertically arranged at the front end of the grip portion 31. Cam rollers 35R and 35L attached to the rear ends of the left and right side brushes 33L and 33R are in contact with the left and right inclined cam surfaces 34L and 34R of the push-in plate 34 by a spring force. Thus, the pushing plate 34 is held at the upper end position by the spring force. When the operator pushes in the pushing plate 34, the left and right side brushes 33L and 33R can be opened against the spring force. When the push is released, the left and right side brushes 33L and 33R are closed by the spring force.

  The support bracket 32 is provided with a mounting plate 36 at the lower end thereof, and on this back surface, inclined surfaces 27a before and after the frame plate 27 (frame plate 17) of the front wheel cleaning unit 6 (rear wheel cleaning unit 7), Inclined surfaces 36a and 36b corresponding to 27b (inclined surfaces 17a and 17b) are formed. Further, a tapered attachment pin 37 projects vertically on the inclined surface 36a. As shown in FIG. 5B, the side brush cleaning tool 30 positions and inserts the mounting pins 37 of the mounting plate 36 into predetermined mounting holes 27c (17c) in the frame plate 27 (17). Thus, the side brush cleaning tool 30 is attached to the frame plate 27 (17) with the side brushes 33L and 33R extending horizontally.

  The operator places the wheelchair 100 to be cleaned on the front and rear cleaning units 6 and 7 and adjusts the position in the front-rear direction, and then attaches the side brush cleaning tool 30. First, the holding part 31 of the side brush cleaning tool 30 is held and attached to the frame plate 27 at a position corresponding to the front wheel tire. At this time, the push-in plate 34 is pushed in and the left and right side brushes 33L and 33R are opened, and the front tire is attached to the frame plate 27 in a state of being sandwiched from both sides. The same applies to the case where the rear tires are mounted on both sides. In this manner, the side brush cleaning tool 30 can be positioned with respect to each wheel tire by a simple operation, and a state in which both sides of the tire are sandwiched between the side brushes 33L and 33R can be formed.

  Here, each of the left and right side brushes 33L and 33R includes an upper brush row 38a, a central brush row 38b, and a lower brush row 38c arranged in parallel at regular intervals, as shown in FIG. 5 (d). Yes. In each of the brush rows 38a to 38c, a bundle of brushes (bundle brush) is continuously arranged in a row. Further, the brush tip lengths of the upper brush row 38a and the lower brush row 38c are longer than the brush tip length of the central brush row 38b.

  As shown in FIG. 5 (e), in the state attached to the frame plate 27 (17), the side brush cleaning tool 30 is substantially the same as the brush tip of the front wheel cleaning brush roll 22 (rear wheel cleaning brush roll 12). The lower brush row 38c is set at the same height position. When the front wheel (rear wheel) of the wheelchair 100 is placed on the front wheel cleaning brush roll 22 (rear wheel cleaning brush roll 12), the lower portions of the tread 102 and the tire side surfaces of the tire 101 are buried in the brush on the brush roll side, Each of the side brushes 33L and 33R hits the remaining tire side surfaces. The long upper brush row 38a hits a deep portion between the tire side surface and the wheel rim 103, and foreign matters adhering to this portion can be reliably washed and scraped off.

  Next, FIGS. 6A to 6E are a perspective view, a side view, and a rear view showing a double side brush cleaning tool suitable for cleaning a side surface of a double wheel tire (double wheel tire). It is explanatory drawing which shows a cross section and a use condition. The double-type side brush cleaning tool 40 can be attached to the frame plate 27 (17) instead of the side brush cleaning tool 30, and the basic configuration is the same as that of the side brush cleaning tool 30. In the figure, corresponding parts are denoted by the same reference numerals. The structure of different parts will be described below.

  In the double side brush cleaning tool 40, the left and right side brushes 43L and 43R attached to the support bracket 32 can be opened and closed with respect to each other as indicated by arrows in FIG. The side brushes 43L and 43R can be opened by pushing the pushing plate 34, and when the pushing of the pushing plate 34 is released, the side brushes 43L and 43R approach each other and return to the original closed state shown in FIG. Each of the side brushes 43L and 43R includes an outer brush 41 and an inner brush 42 that face each other at regular intervals. In the illustrated example, the outer brush 41 includes three rows of brush rows 38a to 38c, and the inner brush 42 includes only one row of brush rows 42a at a height position corresponding to the lower brush row 38c. . Both brushes 41 and 42 may be provided with only one brush row at the same height, and various brush arrangement configurations may be employed.

  If the double side brush cleaning tool 40 of this structure is used, as shown in FIG.6 (e), each side surface of a double wheel tire can be wash | cleaned. Moreover, since it is only necessary to attach the double side brush cleaning tool 40 instead of the side brush cleaning tool 30, the operation is also simple.

(Structure and attachment / detachment mechanism of cleaning liquid pan)
Next, with reference to FIG. 3, the structure of the front and rear cleaning liquid pans 8 and 9 and their attachment / detachment mechanism will be described. Since the attachment / detachment mechanism of the front and rear cleaning liquid pans 8 and 9 has a symmetrical structure, the structure and the attachment / detachment structure of the rear wheel cleaning liquid pan 9 will be mainly described.

  The rear wheel cleaning liquid pan 9 includes a pair of left and right cleaning liquid pans 9L and 9R having the same shape and structure disposed between the left and right vertical support plates 11L and 11R of the rear wheel cleaning unit 7. Each of the cleaning liquid pans 9L and 9R has a flat rectangular parallelepiped shape, and its top surface is covered with a front lid 51 and a rear lid 52 having a predetermined width at the front end portion and the rear end portion thereof. A gap 53 is an opening 53 that opens upward. Inside the rear wheel washing liquid pan 9, a front vertical partition plate 54 and a rear vertical partition plate 55 extending in the width direction X at predetermined intervals are disposed between the top surface and the bottom surface. The front compartment 56a, the central compartment 56b, and the rear compartment 56c are partitioned. The left and right cleaning liquid pans 9 of the rear wheel cleaning liquid pan 9 are provided with handle portions 57L and 57R, respectively, and the operator can attach and detach both cleaning liquid pans by hand. ing.

  The front compartment 56a and the central compartment 56b communicate with each other through the upper and lower portions of the front vertical partition plate 54. Similarly, the rear compartment 56c and the central compartment 56b communicate with each other via upper and lower portions of the rear vertical partition plate 55. Communication holes can also be formed in these partition plates 54 and 55. Through the opening 53 between the partition plates 54 and 55, the rear wheel cleaning brush roll 12 is inserted into the central compartment 56b of the rear wheel cleaning liquid pan 9 by a predetermined amount. Each brush portion of the rear wheel cleaning brush roll 12 is repeatedly immersed in the cleaning liquid stored in the rear wheel cleaning liquid pan 9 every rotation of the roll.

  In each of the cleaning liquid pans 9L and 9R of the rear wheel cleaning liquid pan 9 of this configuration, the inside is partitioned forward and backward by the partition plates 54 and 55, and the cleaning liquid can flow back and forth through the upper and lower sides of the partition plates 54 and 55. . Therefore, the spilling of the cleaning liquid caused by inserting / removing the cleaning liquid pans 9L and 9R of the rear wheel cleaning liquid pan 9 is suppressed by the partition plates 54 and 55 as a buffer, and a foaming suppression effect is also expected. In addition, the front and rear lids 51 and 52 also suppress ripples and bubble spillage. As a result, it is possible to prevent the cleaning liquid from leaking out of the pan 9, and it is possible to prevent or suppress the occurrence of harmful effects such as a large amount of bubbles overflowing and soiling the surroundings.

  Next, on the back side of the bottom surface of each of the cleaning liquid pans 9L and 9R of the rear wheel cleaning liquid pan 9, a plurality of slide members 61 extending in the front-rear direction are provided at the front and rear positions, at both end portions and the central portion in the width direction, respectively. Is attached. These slide members 61 have an inverted trapezoidal outline shape, and include a flat horizontal end surface 61a that faces downward, and a flat inclined end surface 61b that slopes upward toward the front continuously from the front end. ing.

  A plurality of trapezoidal slide guide surfaces 62 on which these slide members 61 ride are formed on the upper surface 3a side of the gantry 3 on the front and rear sides thereof. Each slide guide surface 62 includes a horizontal guide surface 62a that extends in the front-rear direction in a flat horizontal manner, and a flat inclined guide surface 62b that inclines downward toward the rear continuously from the rear end.

  In a state where the cleaning liquid pans 9L and 9R of the rear wheel cleaning liquid pan 9 are mounted on the gantry 3, as shown by a solid line in FIG. 3 (a), the horizontal end surface 61a of the slide member 61 attached to the bottom surface thereof is on the gantry side. It rides on the horizontal guide surface 62a and is positioned in contact with the contact plate 63 that defines the mounting position. When the cleaning liquid pans 9L and 9R of the rear wheel cleaning liquid pan 9 are pulled out rearward from this state, the cleaning liquid pans 9L and 9R slide on the slide guide surface 62 and descend as a whole while maintaining the horizontal posture. While moving backwards. As a result, the rear portion of the rear wheel cleaning liquid pan 9 in the cleaning liquid pans 9L and 9R does not interfere with the rear wheel cleaning brush roll 12 and does not interfere with the rear wheel cleaning brush roll 12, as shown by the imaginary line in FIG. Pulled out. At the time of mounting, the cleaning liquid pans 9L, 9R of the rear wheel cleaning liquid pan 9 are fed forward while being raised and positioned at the mounting position indicated by a solid line.

  Note that a stopper 64 (see FIGS. 1, 2, and 4) for preventing misalignment is disposed on the rear side of each of the cleaning liquid pans 9L and 9R, and each of the mounted cleaning liquid pans 9L and 9R is disposed between them. This prevents the shift to the rear. The stopper 64 includes a swivel plate 64a that can swivel from a horizontal position that abuts both the left and right cleaning liquid pans 9L and 9R from the rear side to a vertical position that does not interfere with these. Of course, a stopper having a structure other than this can also be used.

  On the other hand, on the front wheel cleaning unit 6 side, a mounting portion for the front wheel cleaning liquid pan 8 is formed on the back surface thereof. Therefore, the front wheel cleaning unit 6 and the front wheel cleaning liquid pan 8 can be slid back and forth as a unit. Further, the front wheel cleaning liquid pan 8 can be pulled out and removed from the front wheel cleaning unit 6, and can be attached to the front wheel cleaning unit 6 by pushing the front wheel cleaning liquid pan 8 backward. The front wheel cleaning liquid pan 8 is also composed of a pair of left and right cleaning liquid pans having the same shape and structure. The front wheel cleaning liquid pan 8 and the rear wheel cleaning liquid pan 9 may be a single cleaning liquid pan.

DESCRIPTION OF SYMBOLS 1 Wheelchair tire washing machine 3 Base 6 Front wheel washing unit 7 Rear wheel washing unit 8 Front wheel washing liquid pan 9 Rear wheel washing liquid pan 9L, 9R Cleaning liquid pan 11L, 11R Vertical support plate 12 Rear wheel washing brush roll 12a Roll rotating shaft 12b Roll main body 12c Bundled brushes 12L, 12R Brush roll 13 Rear wheel support roll 14 Rotation drive mechanism 15L, 15R Cover 17 Frame plate 20 Sliding unit frame 21L, 21R Vertical support plate 22 Front wheel cleaning brush roll 22a Roll rotating shaft 22b Roll body 22c Bundle -Shaped brushes 22L, 22R Brush roll 23 Front wheel support roll 24 Rotation drive mechanism 25L, 25R Cover 26 Lock lever 27 Frame plate 30 Side brush cleaning tool 31 Holding part 32 Support bracket 33L, 33R Side brush 34 Push plate 35R, 35L Cam roller 6 mounting plate 37 mounting pin 38a upper brush row 38b central brush row 38c lower brush row 40 double side brush cleaning tool 41 outer brush 42 inner brush 43L, 43R side brush 51 front lid 52 rear lid 53 opening 54 front vertical partition Plate 55 Rear vertical partition plate 61 Slide member 62 Slide guide surface 63 Contact plate 64 Stopper 64a Swivel plate 100 Wheelchair 101 Tire 102 Tread 103 Wheel rim

Claims (6)

A tire washer (1) for washing front and rear wheels in a wheelchair or a walking vehicle,
It has a gantry (3), cleaning liquid pans (8, 9), a front wheel cleaning unit (6) and a rear wheel cleaning unit (7).
The rear wheel cleaning unit (7) is mounted on the gantry (3) in a fixed state in a predetermined position in the front-rear direction,
The front wheel cleaning unit (6) is mounted on the gantry (3) so as to be slidable in the front-rear direction at a position on the front side of the rear wheel cleaning unit (7).
The rear wheel cleaning unit (7) includes a rear wheel cleaning brush roll (12) extending horizontally in the width direction, and a rotatable rear wheel support roll (13) extending parallel to the rear wheel cleaning brush roll (12). And at least the lower part of the rear wheel cleaning brush roll (12) is located in the cleaning liquid pan (9),
The front wheel cleaning unit (6) includes a front wheel cleaning brush roll (22) extending horizontally in the width direction, a rotatable front wheel support roll (23) extending parallel to the front wheel cleaning brush roll (22), and the front wheel cleaning A lock lever (26) that is manually operated to lock the unit (6) to the gantry (3) at a predetermined sliding position in the front-rear direction, and at least a lower portion of the front wheel cleaning brush roll (22) Located in the washing liquid pan (8),
The lock lever (26) is disposed at one end in the width direction of the front wheel cleaning unit (6),
Each of the front wheel cleaning brush roll (22) and the rear wheel cleaning brush roll (12) has a roll body (12b, 22b) and a predetermined length over the entire length in the circular outer peripheral surface of the roll body. A tire washer (1) comprising a bundle of brushes (12c, 22c) planted at a density. In claim 1,
A side brush cleaning tool (30) for cleaning both sides of the wheel tire and both sides between the tire and the wheel rim;
The front wheel cleaning unit (6) includes a front wheel side cleaning tool mounting portion (27) to which the side brush cleaning tool (30) can be attached in a removable state at a plurality of positions in the width direction.
The rear wheel cleaning unit (7) includes a rear wheel side cleaning tool mounting portion (17) to which the side brush cleaning tool (30) can be mounted in a removable state at a plurality of positions in the width direction.
The side brush cleaning tool (30) is arranged in a state where the hair tips face each other from the width direction in a state where the side brush cleaning tool (30) is mounted on the front wheel side cleaning tool mounting portion (27) or the rear wheel side cleaning tool mounting portion (17). A tire washer (1) comprising a pair of left and right side brushes (33L, 33R) and a manual operation member (34) capable of opening and closing the side brushes (33L, 33R). In claim 2,
A dual-type side brush cleaning tool (40) for cleaning both side portions of each wheel in a double-type wheel and both side portions between each tire and each wheel rim;
The double side brush cleaning tool (40) can be attached to the front wheel side cleaning tool mounting part (27) or the rear wheel side cleaning tool mounting part (17) in a removable state.
The pair of side brush cleaning tools (40) are arranged in parallel in the width direction in a state where they are attached to the front wheel side cleaning tool mounting portion (27) and the rear wheel side cleaning tool mounting portion (17). Side brush (43L, 43R)
Each of the side brushes (43L, 43R) includes an inner brush (42) and an outer brush (41) that are arranged in a state where the hair ends face each other from the width direction,
The dual-type side brush cleaning tool (40) includes a manual operation member (34) capable of opening and closing the pair of side brushes (43L, 43R) in the width direction. ). In claim 2,
The side brushes (33L, 33R) are linear in the front-rear direction at a predetermined interval in the vertical direction when attached to the rear wheel side cleaning tool mounting portion (17) or the front wheel side cleaning tool mounting portion (27). An upper brush row (38a), a central brush row (38b) and a lower brush row (38c) arranged in
In each brush row (38a to 38c), a bundle of brushes is arranged continuously and linearly in the front-rear direction,
The tire washer characterized in that the brush tip lengths of the upper brush row (38a) and the lower brush row (38c) are longer than the brush tip length of the central brush row (38b). (1). In any one of claims 1 to 4,
The cleaning liquid pan includes a front wheel cleaning liquid pan (8) for the front wheel cleaning brush roll, and a rear wheel cleaning liquid pan (9) for the rear wheel cleaning brush roll,
The front wheel cleaning liquid pan (8) can be removed from the front wheel cleaning unit (6) by sliding in a horizontal position along an inclined surface (62b) inclined downward toward the front. ,
The rear wheel washing liquid pan (9) is slidable in a horizontal position along the inclined surface (62b) inclined downward toward the rear, and can be removed rearward from the gantry (3). A tire washer (1). In any one of claims 1 to 5,
Each of the front wheel cleaning liquid pan (8) and the rear wheel cleaning liquid pan (9) is a rectangular parallelepiped pan having a predetermined thickness,
The top surface of the bread has a front end portion and a rear end portion covered with a front lid (51) and a rear lid (52) having a predetermined width, and an opening (53) that opens upward between them. )
The interior of the bread is divided into a front compartment (56a) by a front vertical partition plate (54) and a rear vertical partition plate (55) extending in the width direction at a predetermined interval between the top surface and the bottom surface. , Partitioned into a central compartment (56b) and a rear compartment (56c),
The front compartment (56a) and the central compartment (56b) communicate with each other through a communication hole formed in the front vertical partition plate (54) or upper and lower portions of the front vertical partition plate (54). And
Between the rear compartment (56c) and the central compartment (56b), a communication hole formed in the rear vertical partition plate (55) or an upper and lower portion of the rear vertical partition plate (55). Communicated,
The tire washer (1), wherein the front wheel cleaning brush roll (22) or the rear wheel cleaning brush roll (12) is inserted into the pan from the opening (53).

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