JP2018024355A - Car washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a car washing machine which can correct deflection of a shaft of a top brush and rotate the top brush with high accuracy.SOLUTION: A car washing machine WA includes: a body part 1 which relatively moves in a fore and aft direction of a washed vehicle CA; a pair of left and right guide rails 10 erected on the body part 1; a pair of holding parts 5 which are guided in a vertical direction by the guide rails 10; and a top brush 4 which is held at both axial ends by the holding parts 5. Each holding part 5 includes: pedestals 501, 502; a first roller 51 which is disposed on the pedestal and rolls on an outer surface 101 of the guide rail 10; and a second roller 52 which is disposed below the first roller 51 on the pedestal and rolls on an inner surface of the guide rail 10. The car washing machine is provided with variable parts 56, 58 which vary an axial position of the first roller 51 or the second roller 52 relative to the pedestal.SELECTED DRAWING: Figure 12

Description

  The present invention relates to a car wash machine that is installed in a gas station or the like to wash a vehicle to be cleaned.

  A conventional car wash machine installed in a gas station or the like is disclosed in Patent Document 1. The car wash machine includes a gate-shaped main body frame and a top brush that is attached to the main body frame and moves up and down along the upper surface of the vehicle to be cleaned to clean the upper surface of the vehicle body. An elevating rail is suspended in the main body frame, and a brush shaft of a top brush is attached to a carrier provided to elevate the elevating rail.

Japanese Patent Laid-Open No. 2006-74262

  However, in the car wash machine described in Patent Document 1, since the both ends of the brush shaft of the top brush are held by the carrier, the top brush bends due to its own weight or aging deterioration. When the top brush is bent, the rotation of the top brush tends to be unstable, and the top brush looks bad. In addition, the unstable rotation may cause vibration and noise. Furthermore, the deterioration of the rotating system is promoted, and the pressure applied to the vehicle fluctuates, so that unevenness in cleaning is likely to occur. In addition, since the rotation of the top brush periodically varies, the load on the motor is likely to vary, which is likely to cause malfunction and failure of the motor.

  An object of the present invention is to provide a car wash machine that can correct the deflection of the shaft of the top brush and can rotate the top brush with high accuracy.

  In order to achieve the above object, the present invention is guided in a vertical direction by a main body part that moves relatively in the front-rear direction of the vehicle to be cleaned, a pair of left and right guide rails erected on the main body part, and the guide rails. A car wash machine comprising: a pair of holding portions; and a top brush that holds both ends in the axial direction by the holding portions and cleans the upper surface of the vehicle to be cleaned, wherein the holding portion includes a pedestal and the pedestal A first roller that is disposed above and rolls on an outer surface of the guide rail; and a first roller that is disposed below the first roller on the pedestal and rolls on an inner surface of the guide rail. And a variable portion that varies the position of the first roller or the second roller in the axial direction with respect to the pedestal.

  According to this structure, the angle with respect to the guide rail of a base can be changed by operating the variable part and changing the position of the axial direction of a 1st roller or a 2nd roller. For example, by pressing the first roller toward the guide rail, the pedestal rotates in a direction in which the upper part is separated from the guide rail with the contact portion between the second roller and the guide rail as a center. Thereby, it is possible to correct the deflection of the top brush by adjusting the axis of the top brush held on the pedestal so that the inside is directed upward or downward.

  By correcting the deflection of the top brush, the shake at the time of rotation of the top brush can be eliminated, and poor visual appearance can be eliminated. Moreover, vibration and noise from the top brush can be reduced by eliminating the rotational vibration of the top brush. Furthermore, by eliminating the rotation vibration of the top brush, it is possible to suppress deterioration of metal fatigue and the like of the entire rotating system, and to suppress unevenness of the contact surface, thereby preventing occurrence of cleaning unevenness. Moreover, the load of a motor can be reduced by suppressing the runout of the rotation of the top brush. In the above description, the first roller is pushed toward the guide rail, but the same effect can be obtained by pushing the second roller toward the guide rail.

  According to the present invention, in the car wash machine configured as described above, the first roller or the second roller is supported in a long hole formed in the pedestal extending in the axial direction, and the variable portion is screwed into the pedestal. And a bolt that presses the first roller or the second roller supported in the elongated hole in the axial direction.

  In the car wash machine having the above-described configuration, one of the first roller and the second roller may be supported by the elongated hole, and the other may be pivotally supported by a through hole provided in the pedestal.

  Further, in the car wash machine having the above configuration according to the present invention, the position of the first roller in the axial direction may be varied by the variable portion.

  Further, the present invention is the car wash machine having the above-described configuration, wherein the holding portion rolls on the same surface as the first roller on the guide rail and is arranged below the first roller, A fourth roller that rolls on the same surface as the second roller and is disposed above the second roller, and the third roller and the fourth roller are arranged to be movable in the axial direction. May be.

  Further, the present invention is the car wash machine having the above-described configuration, wherein the holding portion rolls on the same surface as the first roller on the guide rail and is arranged below the first roller, A fourth roller that rolls on the same surface as the second roller and is disposed above the second roller, and the third roller and the fourth roller are the first roller and the second roller. It may be made of a softer material.

  According to the present invention, the deflection of the shaft of the top brush can be corrected, and a car wash machine in which the top brush rotates with high accuracy can be provided.

It is a side view which shows the car wash machine of this embodiment. It is a front view which shows the car wash machine of this embodiment. It is a front view which shows the principal part structure of the top brush of a car wash machine main body. It is sectional drawing of a holding | maintenance part and a rocking | swiveling part. It is a longitudinal cross-sectional view of a holding | maintenance part and a rocking | swiveling part shown in FIG. It is a top view of a rocking | fluctuation control part. It is a front view of the rocking | fluctuation control part shown in FIG. It is the side view seen from the near side of the rocking | fluctuation control part shown in FIG. It is the schematic which shows the top brush which has generate | occur | produced the bending. It is the schematic which shows the state which corrected the deflection | deviation of the top brush. It is a figure which shows an example of the holding | maintenance part of the state which the top brush shown in FIG. 9 is bent. It is a figure which shows an example of the holding | maintenance part of the state which corrected the deflection | deviation of the top brush shown in FIG. It is a figure which shows the other example of a holding | maintenance part. It is a figure which shows the state which corrected the deflection | deviation of the top brush with the holding | maintenance part shown in FIG. It is the figure which showed typically the rocking | swiveling part, the rocking | fluctuation control part, and the top brush. It is a figure which shows the state which the rocking | swiveling part, the rocking | fluctuation control part, and the top brush rocked. It is a figure which shows the relationship between the displacement of a lever part, and the force which a lever part presses a coil spring. It is the schematic which shows the structure of the rocking | fluctuation control part which controls the rocking | fluctuation of the top brush of a comparative example.

  Embodiments of the present invention will be described with reference to the drawings. 1 and 2 are a side view and a front view showing the car wash machine of the present embodiment. In the following description, the structure and operation of the car wash machine may be described in terms of the moving direction and left and right. Before and after are based on FIG. That is, the moving direction of the car wash machine body 1 at the time of washing with the brush is defined as one direction (right to left in FIG. 1) from the front side to the rear side of the vehicle CA to be cleaned. The left and right are defined as the left and right (left and right in FIG. 2) when the car wash machine body 1 is viewed from the vehicle to be cleaned CA. Furthermore, when referring to the front side and the back side of the car wash machine body 1, the front side and the back side when the car wash machine body 1 is viewed from a user in the vehicle to be cleaned CA (for example, in FIG. ). Furthermore, it may be described as outside and inside. The outer side shows the left and right outer sides of the car wash machine body 1 as viewed from the vehicle to be cleaned CA, and the inner side shows the inner side of the car wash machine body 1 in the left and right direction as seen from the car to be cleaned CA.

<Overall configuration of car wash machine>
As shown in FIGS. 1 and 2, the car wash machine WA includes a car wash machine body 1. A remote panel Rp that can be operated by a user or the like who gets on the vehicle to be cleaned is arranged on a path through which the vehicle to be cleaned CA enters the car wash machine main body 1. As shown in FIG. 2, an operation panel Op that can be operated by a user or the like who gets off the vehicle to be cleaned CA is arranged on the front side of one side (here, the right side) of the car wash machine body 1. The same operation is possible with the operation panel Op and the remote panel Rp. By accepting the operation of the remote panel Rp and / or the operation panel Op by the user or the like, the reception of the car wash of the vehicle to be washed CA, the setting of the car wash condition, etc. are performed.

  That is, the operation panel Op and the remote panel Rp are provided with, for example, a car wash start button (not shown) and a setting button (not shown) for setting car wash conditions, the shape of the vehicle to be washed, and the like. Examples of the car wash conditions set by the setting button include shampoo, waxing, water repellent coat, and the like. Further, it may contain high-grade shampoo, high-grade wax, high-grade water repellent coat, special coat and the like.

  The setting items such as the shape of the vehicle to be cleaned by the setting buttons include, for example, the shape of the vehicle (one box, minivan, sedan, etc.), front guard, fender pole, door mirror, rear wiper, and applicable equipment. You can list equipment settings such as none. In addition to these, an operation for performing settings necessary for the car wash of the non-car wash vehicle CA by the car wash machine WA is possible. The above-described button may be a push button having a mechanical contact, or may be a so-called touch sensor type sensor that senses contact on the screen. Moreover, the structure which can be operated from the portable terminal (smartphone etc.) which the user owns may be sufficient.

  The car wash machine main body 1 has an opening, and is formed in a gate shape straddling the vehicle to be cleaned CA by moving toward the vehicle to be cleaned CA. On the bottom surface of the car wash machine main body 1, wheels 21 disposed on a pair of left and right rails 20 provided on the ground are provided. Thereby, the car wash machine main body 1 travels on the rail 20 and relatively moves from the front to the rear of the vehicle to be cleaned CA. In the car wash machine WA of the present embodiment, the car wash machine body 1 moves with respect to the stopped vehicle to be washed CA, but the present invention is not limited to this. For example, a moving mechanism such as a belt conveyor may be provided on the floor surface, and the vehicle to be cleaned CA placed on the moving mechanism may be moved relative to the fixed car wash machine body 1. Further, both the vehicle to be cleaned CA and the car wash machine main body 1 may be moved.

  The car wash machine main body 1 is provided with a plurality of rotating brushes for brushing the vehicle to be cleaned CA. The brush includes a side brush 31, a rocker brush 32 and a top brush 4. The top brush 4 is formed by cleaning the upper surface of the vehicle CA to be cleaned and radially fixing brush hair made of cloth (woven fabric, knitted fabric, non-woven fabric, etc.) or resin fiber on a horizontal shaft 40 (see FIG. 3). The

  A pair of left and right side brushes 31 is provided, and slides on both side surfaces and front and rear surfaces of the vehicle to be cleaned CA to clean the vehicle to be cleaned CA. A pair of left and right rocker brushes 32 are provided to clean the lower portion of the side surface including the tire of the vehicle CA to be cleaned. The side brush 31 and the rocker brush 32 also have the same rotation axis and brush hair as the top brush 4.

  On one side of the car wash machine main body 1 is disposed a tank storage unit 22 for storing a plurality of liquid storage tanks (not shown) for storing various liquid agents such as detergents and waxes. Distributing piping 23 for distributing city water and the liquid agent from each liquid storage tank is provided above the tank housing 22. The car wash machine main body 1 is provided with first and second water purification nozzles 11 and 13, first and second detergent nozzles 12 and 15, a water repellent coating nozzle 14, and a wax nozzle 16 that are led out from the distribution pipe portion 23. Yes.

  The first and second water purification nozzles 11 and 13 are respectively arranged on the front side and the back side of the car wash machine body 1 and inject city water to the vehicle to be cleaned CA. The first and second detergent nozzles 12 and 15 are respectively arranged on the near side and the far side of the car wash machine main body 1 and spray detergent onto the vehicle to be cleaned CA. The water repellent coating nozzle 14 is disposed on the back side of the car wash machine body 1 and sprays a water repellent coating agent onto the vehicle CA to be cleaned. The wax nozzle 16 is disposed on the back side of the car wash machine body 1 and injects wax onto the vehicle CA to be cleaned.

  Further, the car wash machine main body 1 is provided with a top blowing nozzle 18 and a side blowing nozzle 19 for drying the vehicle CA to be cleaned. The top blowing nozzle 18 is provided at the upper center of the car wash machine body 1. The side blowing nozzles 19 are provided on both the left and right sides of the car wash machine body 1. The top blower nozzle 18 and the side blower nozzle 19 blow the blown air from the blower 17 to the vehicle CA to be cleaned, and dries the moisture adhering to the surface of the vehicle CA to be cleaned.

  A vehicle sensor Se is provided in the upper part of the front surface of the car wash machine body 1. The vehicle sensor Se includes a photoelectric sensor, an ultrasonic sensor, and the like, and detects the outer surface shape of the vehicle CA to be cleaned that enters the car wash machine main body 1.

<Top brush configuration>
FIG. 3 is a front view showing a main configuration of a top brush of the car wash machine body. The car wash machine main body 1 has a configuration capable of moving the top brush 4 up and down. When the car wash machine body 1 moves toward the vehicle CA to be cleaned, the top brush 4 is pushed from the vehicle CA to be cleaned. In the car wash machine WA, the top brush 4 is configured to swing to release the force from the vehicle CA to be cleaned.

  The car wash machine body 1 having such a configuration includes a guide rail 10, a top brush 4, a holding part 5, a swinging part 6, a swinging restricting part 7, and a lifting mechanism 8. The top brush 4 includes a shaft 40. The shaft 40 extends in the left-right direction from the center of the top brush 4.

  A rotation motor 41 is attached to the right side of the shaft 40 via a transmission mechanism 42. The transmission mechanism 42 transmits the rotational force generated at the output shaft of the rotary motor 41 to the shaft 40. Examples of the transmission mechanism 42 include, but are not limited to, those using a chain and a sprocket, and those using a drive shaft. Electric power is supplied to the rotary motor 41 from a power supply (not shown). When the electric power is supplied, the rotary motor 41 is driven, and the rotational force of the rotary motor 41 is transmitted to the shaft 40 via the transmission mechanism 42, so that the shaft 40, that is, the top brush 4 rotates.

  Both ends of the shaft 40 in the axial direction are rotatably supported by a swinging portion 6 that is swingably supported by the holding portion 5. The holding part 5 is arranged to be slidable in the vertical direction on a guide rail 10 erected in a pair of left and right sides of the car wash machine body 1.

<Configuration of guide rail, holding part and swinging part>
The guide rail 10, the holding | maintenance part 5, and the rocking | swiveling part 6 are demonstrated with reference to a new drawing. FIG. 4 is a cross-sectional view of the holding portion and the swinging portion. FIG. 5 is a longitudinal sectional view of the holding portion and the swinging portion shown in FIG. Since the holding unit 5 and the swinging unit 6 have the same configuration on the left and right, only the left side is illustrated in FIGS. 4 and 5. In the following, description will be made based on the left guide rail 10, the holding portion 5, and the swinging portion 6 unless otherwise specified.

  First, the guide rail 10 will be described. As described above, the guide rails 10 are provided so as to form a pair on the left and right of the car wash machine body 1. As shown in FIG. 4, the left guide rail 10 includes a pair of column members 100 erected with a gap between the front side and the back side. In other words, the pair of column members 100 are parallel and extend vertically. The left guide rail 10 has a pair of column members 100, and the right guide rail also has a pair of column members 100. The column member 100 has a square pipe shape with a square cross section, and four surfaces of each column member 100 are arranged on the front side, the back side, the left side, and the right side, respectively. In addition, the surface facing the outer side in the car wash machine body 1 of each column member 100 is an outer surface 101, the surface facing the inner side is an inner surface 102, and the surfaces of the pair of column members 100 facing each other are a facing surface 103.

  The holding part 5 is guided by the guide rail 10. As shown in FIGS. 4 and 5, the holding part 5 has a pedestal including an outer pedestal 501, an inner pedestal 502, and a connecting part 503. The holding unit 5 includes a first roller 51, a second roller 52, a third roller 53, a fourth roller 54, and a guide roller 55 that roll or can roll with respect to the guide rail 10. .

  The outer pedestal 501 is disposed on the outer side of the guide rail 10. The outer base 501 includes a rectangular flat plate portion 5011 extending up and down along the outer surface 101 of the column member 100, and a pair of ribs extending from both ends of the flat plate portion 5011 in a direction perpendicular to the vertical direction toward the column member 100. 5012.

  The pair of ribs 5012 of the outer base 501 has a pair of elongated holes 504 extending in the left and right direction, that is, in the axial direction of the top brush 4 at the upper part. The pair of long holes 504 have the same shape, and when the outer pedestal 501 is disposed outside the guide rail 10, the front side and the back side coincide with each other in the vertical and horizontal directions. The first roller shaft 511 passes through the pair of long holes 504. The first roller shaft 511 is attached so as to be movable in the left-right direction along the long hole 504.

  And the 1st roller 51 is rotatably attached to the both ends of the axial direction of the 1st roller shaft 511, ie, the near end and the back end. By attaching the first roller 51, the first roller shaft 511 is restricted from moving toward the front side and the back side. The first roller 51 attached to the front end of the first roller shaft 511 can roll on the outer surface 101 of the column member 100 on the front side, and the end on the back side of the first roller shaft 511. The first roller 51 attached to the part can roll on the outer surface 101 of the column member 100 on the back side. As described above, the first roller 51 is arranged on the outer base 501 so as to roll on the outer surface 101 of the guide rail 10.

  In the present embodiment, the first roller 51 is attached to the first roller shaft 511 via a ball bearing. However, the present invention is not limited to this. For example, the first roller 51 and the first roller shaft 511 are fixed. In addition, the first roller shaft 511 may be rotatably supported. An attachment method in which the first roller 51 rolls on the outer surface 101 can be widely adopted.

  The flat plate portion 5011 of the outer base 501 is provided with a variable portion 56 that pushes the first roller shaft 511 toward the guide rail 10. The variable portion 56 includes a nut (female screw portion) fixed to the flat plate portion 5011 and a bolt that is screwed into the nut and passes through the flat plate portion 5011. The tip of the bolt is in contact with the first roller shaft 511. By turning the bolt of the variable portion 56, the tip of the bolt pushes the first roller shaft 511, and the position of the first roller shaft 511 with respect to the outer base 501 is varied. As shown in FIG. 5, in this embodiment, two variable portions 56 are provided to push the first roller shaft 511 so as not to tilt. However, the present invention is not limited to this, and may be one or three or more as long as the first roller shaft 511 can be pushed without tilting. Moreover, it is not limited to the thing using a bolt nut, ie, a screw.

  The pair of ribs 5012 of the outer pedestal 501 have a pair of elongated holes 506 extending in the left and right, that is, in the axial direction of the top brush 4 at the lower part. The long hole 506 has the same shape, and when the outer base 501 is disposed outside the guide rail 10, the near side and the far side coincide with each other vertically and horizontally. The long hole 506 may have the same shape as the long hole 504 or may be different.

  A roller pin 531 passes through each of the pair of long holes 506. A third roller 53 is rotatably attached to the end of the roller pin 531. The third roller 53 is held on the rib 5012 with a predetermined force. The third roller 53 is attached so as to be able to roll on the outer surface 101 in contact with the outer surface 101 of the column member 100 of the guide rail 10 when the holding portion 5 is shaken or tilted. The roller pin 531 uses a bolt and is fixed to the rib 5012 using a nut and a washer. The roller pin 531 can be moved left and right along the long hole 506. After the roller pin 531 is moved in the long hole 506 and the position of the third roller 53 with respect to the guide rail 10 is adjusted, the roller pin 531 is fixed to the rib 5012.

  In the present embodiment, the third roller 53 is attached to the roller pin 531 via a ball bearing. However, the present invention is not limited to this. For example, the third roller 53 and the roller pin 531 are fixed and the roller pin 531 is fixed. The structure which supports so that rotation is possible may be sufficient. It is possible to widely adopt a mounting method that rolls on the outer surface 101 when the third roller 53 comes into contact with the outer surface 101.

  The inner pedestal 502 is disposed inside the guide rail 10. The inner pedestal 502 includes a rectangular flat plate portion 5021 extending up and down along the inner surface 102 of the column member 100, and a pair of ribs extending from both ends of the flat plate portion 5021 in a direction perpendicular to the vertical direction toward the column member 100. 5022.

  A pair of through holes 505 are provided below the pair of ribs 5022 of the inner pedestal 502. The pair of through holes 505 are cylindrical with the same inner diameter. When the inner pedestal 502 is disposed inside the guide rail 10, the front side and the back side of the pair of through holes 505 coincide vertically and horizontally. The second roller shaft 521 passes through the pair of through holes 505. The second roller shaft 521 is fixed to the through hole 505 so as not to move up, down, left and right. In addition, as a fixing method, although press injection can be mentioned, it is not limited to this.

  And the 2nd roller 52 is rotatably attached to the both ends of the axial direction of the 2nd roller shaft 521, ie, the near end and the back end. By attaching the second roller 52, the movement of the second roller shaft 521 toward the near side and the far side is restricted. Further, the second roller 52 attached to the front end of the second roller shaft 521 can roll on the inner surface 102 of the column member 100 on the front side, and the end on the back side of the second roller shaft 521. The second roller 52 attached to the part can roll on the inner surface 102 of the column member 100 on the back side. As described above, the second roller 52 is arranged to roll on the inner surface 102 of the guide rail 10 on the pedestal. Since the second roller shaft 521 is fixed to the through hole 505, the position of the second roller 52 with respect to the inner base 502 is not variable, that is, fixed.

  In the present embodiment, the second roller 52 is attached to the second roller shaft 521 via a ball bearing. However, the present invention is not limited to this. For example, the second roller 52 and the second roller shaft 521 are fixed. In addition, the second roller shaft 521 may be rotatably supported. A mounting method in which the second roller 52 rolls on the inner surface 102 can be widely adopted.

  The pair of ribs 5022 of the inner pedestal 502 has a pair of elongated holes 507 extending in the left and right direction, that is, in the axial direction of the top brush 4 at the upper part. The long hole 507 has the same shape, and when the inner base 502 is disposed on the inner side of the guide rail 10, the front side and the rear side coincide with each other vertically and horizontally. The long hole 507 may have the same shape as either the long hole 504 or the long hole 506, or may be different.

  A roller pin 541 passes through each of the pair of long holes 507. A fourth roller 54 is rotatably attached to the end of the roller pin 541. The fourth roller 54 is held by the rib 5022 with a predetermined force. The fourth roller 54 is attached so as to be able to roll on the inner surface 102 by contacting the inner surface 102 of the column member 100 of the guide rail 10 when the holding portion 5 is shaken or tilted. The roller pin 541 uses a bolt and is fixed to the rib 5022 using a nut and a washer. The roller pin 541 can be moved left and right along the long hole 507. After the roller pin 541 is moved in the long hole 507 and the position of the fourth roller 54 with respect to the guide rail 10 is adjusted, the roller pin 541 is fixed to the rib 5022.

  In the present embodiment, the fourth roller 54 is attached to the roller pin 541 via a ball bearing. However, the present invention is not limited to this. For example, the fourth roller 54 and the roller pin 541 are fixed and the roller pin 541 is fixed. The structure which supports so that rotation is possible may be sufficient. It is possible to widely adopt a mounting method that rolls on the inner surface 102 when the fourth roller 54 comes into contact with the inner surface 102.

  The holding unit 5 includes a guide shaft 551 that is disposed between the column members 100 of the guide rail 10 and is fixed to the flat plate portion 5011 of the outer pedestal 501 and the flat plate portion 5021 of the inner pedestal 502. A guide roller 55 is provided on the guide shaft 551 so as to be rotatable and to be in contact with the opposing surface 103 of the column member 100. When the holding part 5 is shaken toward the near side or the far side, it comes into contact with the facing surface 103 of the column member 100. In the holding unit 5, the guide rollers 55 are provided on the upper and lower sides of the holding unit 5. A support portion 57 that protrudes outward is provided on the outer base 501 of the holding portion 5.

  The elevating mechanism 8 elevates and lowers the holding unit 5 along the guide rail 10. The lifting mechanism 8 includes a lifting motor 80, a driving side sprocket 81, a driven side sprocket 82, a chain 83, and a counter shaft 84.

  The drive-side sprocket 81 is disposed above the driven-side sprocket 82, and a chain 83 is wound around it. The drive-side sprocket 81 and the driven-side sprocket 82 around which the chain 83 is wound are disposed on both the left and right sides of the car wash machine body 1. A counter shaft 84 is attached to the left and right drive sprockets 81. A driving force from the driving motor 80 is transmitted to the counter shaft 84. The driving force of the drive motor 80 is transmitted to the left and right drive side sprockets 81 via the counter shaft 84, and the left and right drive side sprockets 81 are rotated. As a result, the chain 83 wound around the drive side sprocket 81 and the driven side sprocket 82 moves.

  Both ends of the chain 83 are connected via a dog 83a and are endless. The lower part of the support part 57 of the holding part 5 is supported by the dog 83a. By driving the chain 83, the dog 83 a moves up and down along the guide rail 10. When the dog 83a is lifted by driving the chain 83, the support portion 57 is pushed upward. Thereby, the holding part 5 rises along the guide rail 10. When the dog 83a is lowered by driving the chain 83, the holding portion 5 is lowered along the guide rail 10 by its own weight while the lower portion is supported by the dog 83a.

  That is, the holding unit 5 moves up and down along the guide rail 10 according to the operation of the chain 83. Although illustration is omitted, in practice, in order to prevent the tensile force by the chain 83 from being biased, the chain is similarly attached to the inside of the holding portion 5 so that it can be pulled by the chain. It has become.

  Next, the swing part 6 will be described. As shown in FIG. 5, the upper part of the swinging part 6 is held by the holding part 5 so that the lower part can swing from the near side to the far side. The swing part 6 includes a swing shaft 60, a swing cylinder part 61, a support arm 62, a lever part 63, and a support shaft 64.

  The swing shaft 60 is a columnar shaft that extends inward in the left-right direction from the holding portion 5. The oscillating shaft 60 is supported by an intermediate portion in the vertical direction of the flat plate portion 5011 of the outer pedestal 501 and an intermediate portion in the vertical direction of the flat plate portion 5021 of the inner pedestal 502 so as to be rotatable around the oscillating axis C1. The swing shaft 60 is rotatably supported by the flat plate portion 5011 and the flat plate portion 5021 through a bearing.

  The swinging cylinder part 61 is fitted on the swinging shaft 60. The swinging cylinder part 61 is fixed to the swinging shaft 60. The central axis of the oscillating cylinder portion 61 coincides with the central axis of the oscillating shaft 60 (that is, the oscillating axis C1). The support arm 62 is a long member that extends from the swing shaft 60 in a direction orthogonal to the swing axis. Two support arms 62 are arranged at intervals in the axial direction of the swing shaft 60. As shown in FIG. 5, in the swing part 6, the support arm 62 extends downward from the swing shaft 60.

The lever portion 63 extends in a direction perpendicular to the swing axis C <b> 1 from the swing cylinder portion 61 and in a direction different from the support arm 62. The lever part 63 is formed integrally with the swinging cylinder part 61. The lever portion 63 extends in a direction opposite to the direction in which the support arm 62 extends, that is, upward. The lever portion 63 moves in the circumferential direction around the swing axis C <b> 1 based on the swing of the swing shaft 60. The movement of the lever part 63 is restricted by the swing restricting part 7. The restriction of the movement of the lever part 63 by the swing restriction part 7 will be described later. The lever portion 63 is provided with a long hole 631 extending vertically. A guide shaft 71 (described later) of the swing restricting portion 7 passes through the long hole 631. Since the extending direction of the long hole 631 is the vertical direction, that is, the direction orthogonal to the swing axis C1, the lever portion 63 is moved when the lever portion 63 moves in the circumferential direction around the swing axis C1. Becomes difficult to contact the guide shaft 71.

  The support arm 62 is connected to the swing shaft 60 at the upper end. A support shaft 64 extending in parallel with the swing axis C1 is fixed to the lower end portion of the support arm 62. The support shaft 64 extends in the left-right direction, and the shaft 40 of the top brush 4 is rotatably attached to the radially outer side of the support shaft 64. Thereby, the shaft 40 of the top brush 4 is rotatably supported by the swinging portion 6 at both ends in the axial direction.

<Configuration of rocking restrictor>
The swing restricting portion 7 that restricts the swing of the swing portion 6 will be described with reference to a new drawing. FIG. 6 is a plan view of the swing restricting portion. FIG. 7 is a front view of the swing restricting portion shown in FIG. FIG. 8 is a side view seen from the front side of the swing restricting portion shown in FIG.

  As shown in FIG. 4, FIG. 5, etc., the swing restricting portion 7 is fixed above the swinging portion 6 on the inner surface of the flat plate portion 5021 of the inner base 502. The swing restricting portion 7 includes a base 70, a guide shaft 71, a swing restricting portion 72, a coil spring 73, a spring pressing portion 74, and a fixing nut 75.

  The base 70 is a plate-like member having a rectangular shape in front view. The pedestal 70 includes a pair of support portions 701 extending in a direction perpendicular to both ends in the longitudinal direction. The support portion 701 is provided with a through hole 702 through which the guide shaft 71 passes.

  The guide shaft 71 is a columnar member, and a male screw 711 and a male screw 712 are formed at both ends in the axial direction. Both ends in the axial direction of the guide shaft 71 pass through the through hole 702 from the inside to the outside of the support portion 701. And the guide shaft 71 penetrates the through-hole 702, and the fixing nut 75 is attached to the outer part of the support part 701 on both sides of the washer. The guide shaft 71 is fixed to the base 70 by screwing the fixing nut 75 into the male screw 711 and the male screw 712.

  In this embodiment, the fixing nut 75 is screwed into the male screw 711 and the male screw 712 formed on the guide shaft 71, but the present invention is not limited to this. For example, instead of the fixing nut 75, a fixing member that fixes a portion of the guide shaft 71 protruding outside the support portion 701 may be used.

  As described above, the car wash machine main body 1 moves only to one side from the front to the back of the vehicle CA to be cleaned when cleaning with the top brush 4. Therefore, the top brush 4 is urged with a force directed backward from the vehicle to be cleaned CA. Since the top brush 4 is supported by the support arm 62 and the lever portion 63 extends upward on the side opposite to the support arm 62, the top brush 4 is pushed from the vehicle to be cleaned CA toward the back side. As a result, the upper portion of the lever portion 63 rotates toward the near side.

  The swing limiter 72 limits the movement of the lever part 63 by contacting the lever part 63. The swing limiter 72 is in contact with the inner surface of the lever 63 and is moved to the inner side of the lever 63 when the top brush 4 is not cleaned (the neutral state NS). Restrict movement of Thereby, the movement to the near side of the top brush 4 is restrict | limited. Note that a cushioning member made of a material having a cushioning property such as rubber so as to absorb an impact at the time of contact may be disposed between the swing restriction portion 72 and the lever portion 63. The buffer member may be attached to the lever portion 63 or may be attached to the swing restriction portion 72.

  The swing limiter 72 includes a washer 721 and a nut 722. The washer 721 is brought into contact with the lever portion 63, and the opposite side of the washer 721 from the lever portion 63 is fixed with a nut 722. The nut 722 is screwed into a male screw 711 formed on the guide shaft 71. The nut 722 uses two nuts (double nuts) here, but is not limited to this. A configuration that can fix the washer 721 in a state in which it is difficult to loosen can be widely employed.

  In the swing restricting portion 7, the guide shaft 71 passes through the coil spring 73 in the axial direction. The washer 741 is in contact with both ends of the coil spring 73. A washer 741 that is in contact with one end of the coil spring 73 is in contact with the lever portion 63. The washer 741 that contacts the other end of the coil spring 73 is held by a nut 742 that is screwed into the male screw 712. Here, the nut 742 is a double nut.

  The length of the coil spring 73 can be changed by adjusting the axial position of the guide shaft 71 of the nut 742. At this time, by making the axial length of the coil spring 73 shorter than the natural length, it is possible to generate a preload and press the lever portion 63 of the swinging portion 6 with the preload. The coil spring 73 is an urging portion that presses the lever portion 63 against the swing restriction portion 72. That is, the coil spring 73 restricts the movement of the top brush 4 toward the back side. In addition, although the coil spring 73 is used as an urging | biasing part, it is not limited to this. For example, the structure which urges | biases the lever part 63 with the gravity of a weight using a weight and a wire may be sufficient. The structure which can urge | bias the lever part 63 firmly can be employ | adopted widely.

  Here, “restriction” refers to preventing a certain operation from being performed. For example, since the rocking | fluctuation restriction | limiting part 72 has restrict | limited the movement to the back side of the lever part 63, the lever part 63 cannot move to the back | inner side from the neutral state NS. On the other hand, “regulation” refers to enabling a certain operation with a certain drag force. For example, the coil spring 73 restricts the lever portion 63 to the back side. Thereby, although it becomes difficult to move to the near side of the lever part 63, it is possible to move by pushing with a force larger than the force of the coil spring 73.

<About the deflection of the top brush>
Deflection of the top brush 4 will be described with reference to the drawings. FIG. 9 is a schematic view showing a top brush in which deflection occurs. FIG. 10 is a schematic view showing a state in which the deflection of the top brush is corrected.

  The ideal top brush 4 is attached to the car wash machine main body 1 with no or little deflection as shown by a two-dot chain line in FIG. The top brush 4 is supported by the swinging portion 6 at both ends of the shaft 40. That is, both ends of the shaft 40 support the weight of the entire top brush 4. Due to its own weight and aging, the top brush 4 is bent downward in the central portion in the axial direction, as shown by the solid line in FIG. When the top brush 4 is rotated in a bent state, the rotation axis of the top brush 4 and the center axis C2 of the shaft 40 are shifted (eccentric), and thus rotation is uneven (pulsation). May cause noise. In addition, since the contact pressure of the top brush 40 that contacts the vehicle CA to be cleaned fluctuates due to eccentric rotation, causes such as uneven cleaning and uneven wear of the brush hair. It may become.

  Therefore, as shown in FIG. 10, the deflection of the top brush 4 is corrected by inclining the inside of the swing axis C11 of the left and right swinging portions 6 upward. Hereinafter, a method for correcting the deflection of the top brush 4 will be described.

  FIG. 11 is a diagram illustrating an example of the holding unit in a state in which the top brush illustrated in FIG. 9 is bent. FIG. 12 is a diagram illustrating an example of the holding unit in a state in which the deflection of the top brush illustrated in FIG. 10 is corrected.

  The flat plate portion 5011 of the outer pedestal 501 and the flat plate portion 5021 of the inner pedestal 502 are parallel to the guide rail 10. At this time, the swing shaft 60 supported by the holding unit 5 protrudes toward the inside of the car wash machine body 1 in the left-right direction. The top brush 4 is attached to the distal end side of the swing shaft 60 via a support arm 62. As shown in FIG. 9, the top brush 4 is bent so that the center is lowered to the lower part.

  The holding portion 5 is applied with a force in a direction in which the upper portion rotates inward of the car wash machine body 1 with the contact portion between the second roller 52 and the inner surface 102 of the guide rail 10 as a fulcrum. The first roller 51 is in contact with the outer surface 101 of the guide rail 10, thereby resisting the force in the direction of rotating to the inside of the car wash machine body 1 acting on the holding unit 5. Thereby, the holding | maintenance part 5 is attached to the guide rail 10 so that sliding is possible.

  That is, the holding unit 5 is held by the guide rail 10 when the first roller 51 and the second roller 52 come into contact with the guide rail 10. In the holding unit 5, the force of the member held by the holding unit 5 is received by the first roller 51 and the second roller 52. Further, the third roller 53 and the fourth roller 54 are not guide rollers but guide rollers for guiding the holding unit 5 during movement in a state where the car wash machine WA is normally used. The third roller 53 and the fourth roller 54 may or may not be in contact with the guide rail 10 in a state where the car wash machine WA is normally used.

  As shown in FIG. 9, when the swing axis C1 that is the center axis of the swing shaft 60 extends in the horizontal direction, the center axis C2 of the shaft 40 of the top brush 4 is bent. Therefore, by screwing the variable portion 56, the first roller shaft 511 is pushed, and the relative position of the first roller 51 with respect to the holding portion 5 is shifted. At this time, the first roller 51 pushes the outer surface 101 of the guide rail 10 and moves away from the flat plate portion 5011. Further, the position of the second roller 52 with respect to the holding unit 5 does not change. Accordingly, by operating the variable portion 56, the holding portion 5 rotates outwardly with the contact portion between the second roller 52 and the inner surface 102 of the guide rail 10 as a fulcrum (arrow Rt in FIG. 11).

  The third roller 53 is fixed at a position where it does not come into contact with the outer surface 101 of the guide rail 10 when the upper portion of the holding portion 5 rotates outward. Similarly, the fourth roller 54 is fixed at a position where it does not contact the inner surface 102 of the guide rail 10 when the upper portion of the holding portion 5 rotates outward. The third roller 53 and the fourth roller 54 may be movable, and may be urged so as to always contact the guide rail 10 using a spring or the like.

  Further, when the holding portion 5 rotates to the outside of the car wash machine body 1 with the contact portion between the second roller 52 and the inner surface 102 of the guide rail 10 as a fulcrum, the swing shaft 60 also rotates according to the holding portion 5. . As shown in FIG. 12, the swing shaft 60 is inclined upward on the inner side (right side in FIG. 12). The central axis of the swing shaft 60 (new swing axis C11) is inclined upward with respect to the original swing axis C1. In this way, by tilting the inner side of the swing shaft 60 upward, a force (moment) for lifting the central portion upwards acts on the shaft 40 attached via the swing shaft 60, the support arm 62, and the support shaft 64. . As a result, the center axis C2 of the shaft 40 becomes horizontal (see FIG. 10).

  In addition, although the screw is used as the variable part 56, it is not limited to this, For example, the 1st roller 51 or the 1st roller shaft 511 is operated like a pneumatic cylinder etc. other than a screw, A configuration capable of adjusting the angle of the holding portion 5 with respect to the guide rail 10 can be widely adopted.

  Further, for example, an upward force may act on the top brush 4 when the top brush 4 is pushed (climbed up) by the vehicle CA to be cleaned. At this time, a force in a direction in which the upper portion rotates outwardly acts on the holding portion 5. When the upper portion rotates outward, the third roller 53 contacts the outer surface 101 of the guide rail 10 and the fourth roller 54 contacts the inner surface 102 of the guide rail 10. Thereby, the rotation to the outer side of the upper part of the holding | maintenance part 5 is suppressed so that it may become within a fixed angle. Thereby, the deformation | transformation of the shaft 40 by the excessive rotation of the holding | maintenance part 5 can be suppressed.

  Further, as described above, the third roller 53 and the fourth roller 54 may be biased so as to come into contact with the guide rail 10 by a spring or the like. In this case, an upward force acts on the guide brush 4, and the third roller 53 and the fourth roller 54 do not collide with the guide rail 10 when the upper portion of the holding portion 5 rotates outward. Thereby, it is possible to suppress damage, deformation, and the like due to contact. Moreover, a contact sound can be suppressed. The third roller 53 and the fourth roller 54 can move left and right in a state balanced with the urging force when the rotation angle to the outside of the upper portion of the holding unit 5 is within a certain range, and when the rotation is rotated by a certain angle. Further, a configuration in which the left and right movements are limited by a stopper or the like may be used.

  As described above, since the first roller 51 and the second roller 52 are rollers that support the weight of the top brush 4, the first roller 51 and the second roller 52 are formed of a metal such as a steel material or a hard material such as ceramic. On the other hand, the third roller 53 and the fourth roller 54 are not always responsible for the weight of the top brush 4, but are rollers that contact the guide rail 10 only when an upward force is applied to the top brush 4. Therefore, it may be formed of a softer material than the first roller 51 and the second roller 52 formed of resin or the like. The third roller 53 and the fourth roller 54 are strong enough to support the holding portion 5 against the upward force acting on the top brush 4.

  The third roller 53 and the fourth roller 54 may be formed of a soft material so that the third roller 53 and the fourth roller 54 are deformed and deformed when the angle of the holding unit 5 is adjusted and contact the guide rail 10. By doing in this way, it is possible to release a certain force or more together with the long hole. Thus, when the 3 roller 53 and the 4th roller 54 are formed with a soft member, the roller pin 531 and the roller pin 541 may be attached to the through-hole by which a movement is controlled instead of a long hole.

  Further, when the configuration is such that no upward force acts on the top brush 4 or when there is a separate configuration capable of releasing the upward force, the third roller 53 and the fourth roller 54 are provided. It may be omitted. At this time, either one or both may be omitted.

  In the holding unit 5 described above, by operating the variable unit 56 provided on the outer base 501, the first roller 51 is pushed toward the guide rail 10 to change the angle of the holding unit 5 with respect to the guide rail 10. . However, it is not limited to this. A modification of the holding unit of the present embodiment will be described with reference to the drawings.

  FIG. 13 is a diagram illustrating another example of the holding unit. FIG. 14 is a diagram illustrating a state in which the deflection of the top brush is corrected by the holding unit illustrated in FIG. 13. The holding portion 5B shown in FIG. 13 includes a variable portion 58 on the inner pedestal 502, and the variable portion 58 is attached so as to push the second roller shaft 521 toward the guide rail 10. The second roller shaft 521 is provided through a long hole 509 formed in the rib 5022. In addition, the first roller shaft 511 to which the first roller 51 is attached is fitted in a through hole formed in the rib 5011 of the outer base 501. The first roller shaft 511 is always held at the same position with respect to the holding portion 5B. The variable unit 58 has the same configuration as the variable unit 56 provided in the holding unit 5 and will not be described in detail.

  And in the holding | maintenance part 5B, the force of the direction in which an upper part turns to the inner side of the car wash machine main body 1 acts on the part which is contacting the outer surface 101 of the guide rail 10 of the 1st roller 51. Then, by screwing the variable portion 58, the second roller shaft 521 is pushed, and the relative position of the second roller 52 with respect to the holding portion 5 is shifted. At this time, the second roller 52 presses the inner surface 102 of the guide rail 10. Further, the position of the first roller 51 with respect to the holding unit 5 does not change. Accordingly, by operating the variable portion 58, the holding portion 5 rotates outward with the contact portion between the first roller 51 and the outer surface 101 of the guide rail 10 as a fulcrum (see FIG. 14).

  As described above, the holding unit 5 can be tilted with respect to the guide rail 10 by fixing the position of the first roller 51 with respect to the holding unit 5 and changing the position of the second roller 52 with respect to the holding unit 5. Become. Thereby, the deflection of the top brush 4 can be corrected.

  As described above, in the car wash machine WA according to the present invention, it is possible to correct the deflection of the top brush 4 by operating the variable part provided in the holding part 5. Thereby, poor visual appearance, vibration, noise, and deterioration of the entire rotating system (metal fatigue, wear, etc.) due to the use of the bent top brush 4 can be suppressed. Furthermore, it is possible to suppress deterioration of the motor due to rotation in a state where the top brush 4 is bent.

  In this embodiment, it is assumed that the deflection of the top brush 4 is corrected due to aging, but the present invention is not limited to this. For example, even immediately after manufacture of the car wash machine WA, the top brush 4 may bend by its own weight. You may use for the correction of the deflection | deviation by this dead weight. Furthermore, it may be used to correct errors during assembly.

<Regulation of top brush swing>
The top brush 4 oscillates about the oscillating axis C1 (here, it is assumed that the correction of the deflection is unnecessary). The regulation of the swing of the top brush 4 will be described with reference to the drawings. FIG. 15 is a diagram schematically showing the swinging portion, the swing restricting portion, and the top brush. FIG. 16 is a view showing a state in which the swinging portion, the swing restricting portion, and the top brush are swung. FIGS. 15 and 16 are diagrams schematically showing FIG. 7, and the right side is the back side in FIGS. 15 and 16. FIG. 17 is a diagram illustrating the relationship between the displacement of the lever portion and the force with which the lever portion presses the coil spring.

  In the car wash machine WA of the present invention, when the vehicle to be cleaned CA is washed with the top brush 4, the car wash machine body 1 moves only from the front side to the rear side of the car to be cleaned CA. That is, the top brush 4 is pushed to the back side from the vehicle to be cleaned CA. When the top brush 4 is pushed backward, the lower part of the swing arm 62 that supports the top brush 4 is pushed backward, and the swing shaft 60 rotates in the same direction. The lever portion 63 fixed to the swinging cylinder portion 61 fixed to the swinging shaft 60 is configured such that the upper part moves to the near side. Further, the top brush 4 is not pushed to the near side, and the lever portion 63 is in contact with the swing limiter 72, so that the top brush 4 is not moved to the near side from the neutral state NS.

  When the shaft 40 of the top brush 4 is not shaken, a force that causes the swinging portion 6 to swing by the rotation of the top brush 4 does not occur or does not substantially occur. However, the top brush 4 often deviates from the rotation axis and the central axis due to manufacturing errors, deflection due to its own weight, aging, and the like. If the rotation axis and the center axis are deviated, the rotation of the top brush 4 is shaken, and a force in the swing direction is generated during the rotation.

  Referring to FIG. 15, consider a case where a force in the swinging direction is generated by the rotation of the top brush 4. In the car wash WA, the swinging portion 6 that supports the top brush 4 in a swingable manner restricts the movement of the lever portion 63 to the back side by the swing restriction portion 72. Therefore, even if the top brush 4 is rotated in the neutral state NS and a force that causes the top brush 4 to move to the near side is generated, the top brush 4 does not move to the near side.

  In the swing restricting portion 7 according to the present invention, the coil spring 73 is attached in a compressed state so as to be shorter than the natural length. That is, the coil spring 73 is compressed with the preload Fp and presses the lever portion 63 with the preload Fp.

  This state will be described using the graph of FIG. In FIG. 17, the vertical axis indicates the displacement of the lever portion, and the horizontal axis indicates the force with which the lever portion presses the coil spring. As shown in FIG. 17, when the force by which the lever portion 63 pushes the coil spring 73 is F, the displacement of the lever portion 63 is 0 in the section of F ≦ Fp (region Ar1 in FIG. 17). That is, when the force F by which the lever portion 63 presses the coil spring 73 is equal to or less than the preload Fp, the lever portion 63 does not move from the neutral position NS (see FIG. 15). This indicates that the swinging of the swinging part 6 is restricted, and blurring due to the rotation of the top brush 4 is suppressed.

For example, when the rotational speed of the top brush 4 increases, the force acting on the swinging portion 6 in the swinging direction increases. In FIG. 17, when the force F pushing the coil spring 73 by the region Ar <b> 2 of F> Fp, that is, the lever portion 63 exceeds the preload Fp, the lever portion 63 is displaced. When the lever part 63 is displaced, the coil spring 73 is pressed. In general, the elastic force and displacement of the coil spring are in a proportional relationship. Therefore, in FIG. 17, it becomes a straight line that rises to the right. Assuming that the spring constant of the coil spring 73 is k (> 0), the relationship between the displacement x of the lever portion 63 and the force by which the lever portion 63 pushes the coil spring 73 is expressed as follows.
x = (F−Fp) / k

  Since the top brush 4 rotates around an axis orthogonal to the swinging direction, the force accompanying the rotation is generated both in the forward direction and in the backward direction. When the force in the swinging direction by the top brush 4 is accurately generated at a constant period, the swinging portion 6, that is, the lever portion 63 vibrates. For example, assuming that the lever portion 63 presses the coil spring 73 with the force that generates the displacement Δx, the displacement of the lever portion 63 is limited because the lever portion 63 is restricted from moving backward in the car wash machine WA. Becomes Δx.

  Here, a configuration for limiting the swing of the comparative example, which was devised to explain the features of the present invention, will be described. FIG. 18 is a schematic diagram illustrating a configuration of a swing restricting portion that restricts swing of the top brush of the comparative example. The configuration shown in FIG. 18 is the same as the configuration shown in FIG. 15 except that the swing restricting portion 7J is different. Therefore, substantially the same parts are denoted by the same reference numerals, and detailed description of the same parts is omitted. FIG. 17 shows a relationship between the displacement of the lever portion 63 when the swing restricting portion 7J is used and the force acting on the coil spring 93 from the lever portion 63 by a broken line.

  Usually, this type of swing restricting mechanism employs a mechanism in which coil springs are arranged on both sides in the lever swing direction. Therefore, as shown in FIG. 18, the swing restricting portion 7 </ b> J includes two coil springs 93 disposed on both the near side and the far side of the lever portion 63. One of the two coil springs 93 pushes the front surface of the lever portion 63 toward the back, and the other pushes the back surface of the lever portion 63 toward the front. The two coil springs 93 are assumed to be the same as the coil spring 73 used in the swing restricting portion 7, and are compressed by the preload Fp and attached to the swing restricting portion 7J in the same manner as the coil spring 73.

  As shown in FIG. 18, the rear surface of the lever portion 63 is pushed toward the front with a force Fp, and the front surface is pushed toward the back with a force Fp. That is, when viewed from the swinging portion 6 including the lever portion 63, the force acting on the lever portion 63 by the coil spring 93 is balanced.

  Therefore, when a force that moves the lever portion 63 forward or backward is generated, the lever portion 63 moves. That is, as shown in FIG. 17, when the force acting on the coil spring 93 from the lever portion 63 is 0, the displacement is 0 (that is, the neutral state NS), but the lever portion 63 applies to the coil spring 93. When the applied force is greater than zero, the displacement is not zero. That is, in the case where the front and back surfaces of the lever portion 63 of the swinging portion 6 are pressed by pre-coiled coil springs, if a force in the swinging direction is generated by the rotation of the top brush 4, even if the force is small Swaying occurs.

  As shown in FIG. 17, when the swing restricting portion 7 is used, the swing portion 6 does not swing in the region Ar1 where the force acting on the coil spring 73 from the lever portion 63 is less than Fp. On the other hand, when the swing restricting portion 7J is used, the swing is also performed in the area Ar1. That is, in the region Ar1 where the force acting on the lever portion 63 is small, the swinging portion 6 does not swing by using the swing restricting portion 7 of the present invention. On the other hand, even when the swing restricting portion 7J is used, the swing portion 6 swings. Compared with the case where the swing restricting portion 7J is used, the displacement at the time of swing is small.

  As shown in FIG. 17, the displacement of the lever portion 63 when the swing restricting portion 7 is used and when the swing restricting portion 7J is used is a force acting on the coil spring 73 (93) from the lever portion 63. It becomes the same at F1, and then the inclination is the same. This is because, of the two coil springs 93 of the swing restricting portion 7J, the coil spring 93 on the extending side becomes a natural length due to the fluctuation of the lever portion 63, that is, the preload on the side where the preload is released becomes zero. It is time to become. When displaced further, the lever portion 63 is supported only by the coil spring on the contracting side, and thus overlaps the swing restricting portion 7.

  In the swing restricting portion 7J, when a force greater than F1 acts on the coil spring 93 from the lever portion 63, one of the coil springs 93 does not act. Therefore, in most cases, the swing restricting portion 7J is used in the range where the force acting on the coil spring 93 from the lever portion 63 is 0 to F1. The forces such as Fp and F1 vary depending on the spring constant of the coil spring and the amount of compression during preloading.

  Further, the movement of the swinging portion 6 due to the rotation of the top brush 4 becomes vibration. In the swing restricting portion 7, the swing restricting portion 72 restricts the movement of the lever portion 63 toward the back side. On the other hand, since the swing restricting portion 7J can move to both the near side and the far side, the amount of movement during vibration is larger than when the swing restricting portion 7 is used.

  By using the rocking | fluctuation control part 7 concerning this invention, it is possible to restrain the movement amount of the rocking | fluctuation part 6 at the time of a vibration smaller than the rocking | fluctuation control part 7J supported by the two coil springs 93. FIG. is there. By this. It is possible to suppress poor visual appearance, abnormal noise, vibration, and the like when the top brush 4 rotates. Further, since vibration during rotation of the top brush 4 can be reduced, it is possible to reduce deterioration of metal fatigue or the like of the entire rotating system and a load on the motor. Since vibration at the time of car washing by the top brush 4 can be reduced, uneven cleaning can be suppressed and uneven wear of the top brush 4 can be suppressed.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to this content. The embodiments of the present invention can be variously modified without departing from the spirit of the invention.

  ADVANTAGE OF THE INVENTION According to this invention, it can utilize for the car wash machine which installs in a gas station etc. and wash | cleans a to-be-washed vehicle.

DESCRIPTION OF SYMBOLS 1 Car wash machine body 10 Guide rail 100 Column member 11 1st water purification nozzle 12 1st detergent nozzle 13 2nd water purification nozzle 14 Water repellent coating nozzle 15 2nd detergent nozzle 16 Wax nozzle 17 Blower 18 Top ventilation nozzle 19 Side ventilation nozzle 20 Rail DESCRIPTION OF SYMBOLS 21 Wheel 22 Tank accommodating part 23 Distribution piping part 31 Side brush 32 Rocker brush 4 Top brush 40 Shaft 41 Rotating motor 42 Transmission mechanism 5 Holding part 501 Outer base 502 Inner base 503 Connection part 504 Long hole 505 Through hole 506 Long hole 507 Long Hole 51 First roller 511 First roller shaft 52 Second roller 521 Second roller shaft 53 Third roller 531 Roller pin 54 Fourth roller 541 Roller pin 55 Guide roller 551 Guide shaft 56 Variable portion (screw)
57 Supporting part 58 Variable part (screw)
DESCRIPTION OF SYMBOLS 6 Oscillation part 60 Oscillation shaft 61 Oscillation cylinder part 62 Support arm 63 Lever part 631 Long hole 64 Support shaft 7 Oscillation restriction part 70 Base 701 Support part 702 Through hole 71 Guide shaft 711 Male screw 712 Male screw 72 Oscillation restriction part 721 Washer 722 Nut 73 Coil spring 74 Spring retainer 741 Washer 742 Nut 75 Fixed nut 80 Lifting motor 81 Drive side sprocket 82 Drive side sprocket 83 Chain 83a Dog 84 Countershaft

Claims (7)

A main body that relatively moves in the front-rear direction of the vehicle to be cleaned;
A pair of left and right guide rails erected on the main body,
A pair of holding portions guided in the vertical direction by the guide rails;
A car wash machine comprising: a top brush that holds both ends in the axial direction by the holding portion and cleans the upper surface of the vehicle to be cleaned;
The holding part is
A pedestal,
A first roller disposed on the pedestal and rolling on an outer surface of the guide rail;
A second roller that is disposed below the first roller on the pedestal and rolls on the inner surface of the guide rail;
A car wash machine comprising a variable portion that varies a position of the first roller or the second roller in the axial direction with respect to the pedestal.   The first roller or the second roller is supported in a long hole formed in the pedestal extending in the axial direction, and the variable roller is screwed into the pedestal and supported in the long hole. The car wash machine according to claim 1, further comprising a bolt that presses the second roller in the axial direction.   3. The car wash machine according to claim 2, wherein one of the first roller and the second roller is supported by the elongated hole, and the other is pivotally supported by a through hole provided in the pedestal.   4. The car wash machine according to claim 2, wherein the position of the first roller in the axial direction is varied by the variable portion. 5.   The holding portion rolls on the same surface as the first roller on the guide rail and rolls on the same surface as the second roller, and a third roller disposed below the first roller. The first roller according to claim 1, further comprising a fourth roller disposed above the second roller, wherein the third roller and the fourth roller are disposed to be movable in the axial direction. 4. The car wash machine according to any one of 4 above.   The holding portion rolls on the same surface as the first roller on the guide rail and rolls on the same surface as the second roller, and a third roller disposed below the first roller. And a fourth roller disposed above the second roller, wherein the third roller and the fourth roller are formed of a softer material than the first roller and the second roller. The car wash according to any one of claims 1 to 4. A method for attaching a top brush to a car wash according to any one of claims 1 to 6,
A method for attaching a top brush to a car wash machine, wherein the variable portion is adjusted so that both end portions of a shaft of the top brush are inclined upward inward with respect to horizontal.

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