JP5521985B2 - Skew prevention mechanism for car wash equipment - Google Patents

Description

  The present invention relates to a car wash apparatus used for car wash, and in particular, to prevent the car wash apparatus from skewing, which reciprocates along a traveling rail installed on the upper part of the gantry frame and prevents the moving frame having the injection nozzle from skewing. Regarding the mechanism.

  Conventionally, as a car wash device used for car washing, a frame that can stop the vehicle to be cleaned therein, a traveling rail installed on the top of the frame, a moving frame that moves along the traveling rail, 2. Description of the Related Art A simple type of car wash device provided with an injection nozzle (such as a water injection nozzle or a liquid agent injection nozzle) disposed on the moving frame is known. In addition, it is installed at a fueling station, etc., while the vehicle to be cleaned and the car wash machine body are moved relative to each other in the front-rear direction. A gate-type car wash machine that is configured to perform car wash is also known. In addition, this gate-type car wash machine is integrated with a simple car wash device that performs pre-cleaning to remove large deposits and terrible dirt in advance, and sprays high foaming detergent to improve the car washing effect. Car wash facilities are also known.

  For example, the applicant also includes a travel path provided along the longitudinal direction of the vehicle to be cleaned above the vehicle to be cleaned, and a cleaning means that reciprocates along the travel path, and stops supplying the sprayed liquid agent. There has already been proposed a car wash machine in which a stop position to be set is set in a traveling path and consumption of a liquid agent sprayed by a cleaning means is suppressed to a necessary minimum (for example, see Patent Document 1).

  Further, in order to smoothly and reliably drive the traveling body provided with the injection nozzles in parallel, wheels are provided on each of the pair of two transmission shafts to form a traveling body having a total of four wheels. On the other hand, a car wash machine provided with guide rollers disposed before and after in the traveling direction has already been proposed (see, for example, Patent Document 2).

JP 2007-38883 A JP 2010-173371 A

  It is possible to clean and clean the surface of the vehicle body by spraying cleaning water or a liquid agent while reciprocating a moving frame provided with an injection nozzle along a traveling rail provided on the upper portion of the vehicle to be cleaned. Further, in order to improve the efficiency of the car washing process, it is required to increase the moving speed of the moving frame that reciprocates along the traveling rail in order to shorten the time of the car washing process.

  However, if the moving frame is moved at a high speed, the acceleration at the time of stopping the moving end increases, and the parallelism of the pair of left and right traveling wheels becomes defective and skews. If the parallelism of the left and right traveling wheels deteriorates and the vehicle is skewed, the stable traveling movement of the moving frame that moves along the traveling rail is obstructed.

  In particular, a car wash apparatus that can be adapted to many types of vehicle sizes, such as installed in gas stations and car wash stations, has a wide frame for the frame to be installed across the vehicle to be cleaned. The distance between the pair of left and right traveling rails installed along the longitudinal direction of the vehicle to be cleaned is a wide width exceeding 3 meters. Therefore, if the moving frame that moves along the traveling rail moves at a high speed, skewing tends to occur when stopping at the moving end and when reversing, and the parallelism of the left and right traveling wheels is poor. It becomes a problem.

  It is possible to provide a guide roller before and after each traveling wheel in the traveling direction to keep the parallelism constant by suppressing the occurrence of this skew, but the cost depends on the number of guide rollers installed. This is not preferable.

  Further, as described in Patent Document 2, it is possible to move the traveling body (corresponding to a moving frame) in parallel by providing four traveling wheels on the traveling body and further providing a guide roller. However, since two transmission shafts (corresponding to drive shafts) are used and four traveling wheels are used, the cost increases, which is not preferable.

  Also, even if the parallelism deteriorates when stopping at one moving end and the skewing state occurs, the skewing is improved and the parallelism of the pair of left and right traveling wheels is aligned when starting to move in the opposite direction. Therefore, when the direction is changed, it is preferable that the parallelism becomes normal with a simpler configuration.

  Therefore, when a moving frame having an injection nozzle that moves along a traveling rail installed on the upper portion of the vehicle to be cleaned reciprocates along the longitudinal direction of the vehicle to be cleaned, guide rollers other than the traveling wheels It is preferable that the car wash device has a configuration that includes a skew prevention mechanism that keeps the parallelism of the pair of left and right traveling wheels substantially parallel with a simpler configuration, using as few as possible.

  In view of the above problems, the present invention provides a moving frame that moves along a traveling rail installed at the top of a vehicle to be cleaned, and in a car washing device that performs car washing using an injection nozzle installed in the moving frame. An object of the present invention is to provide a skew-preventing mechanism for a car wash device that can align the parallelism of a pair of left and right traveling wheels of a moving frame with a simple configuration.

  In order to achieve the above object, the present invention provides a frame that can stop a vehicle to be cleaned inside, a pair of left and right traveling rails installed on the top of the frame, and a pair of left and right traveling along the traveling rails. An anti-skew mechanism for a car washing device that includes a moving frame having a traveling wheel and an injection nozzle disposed on the moving frame, and performs washing by injecting cleaning water or liquid from the injection nozzle. The frame includes a drive shaft on which the pair of left and right traveling wheels are disposed, and a drive motor that rotationally drives the drive shaft, and the first traveling wheel of the traveling wheels is attached to the drive via a key. The guide rollers are arranged on the front and rear sides in the traveling direction, fixed to the shaft, and the other second traveling wheel is rotated with respect to the drive shaft via a sliding bearing member. It is characterized in that mountable.

  According to this configuration, the pair of left and right traveling wheels of the moving frame that moves along the traveling frame, one of the first traveling wheels is fixed to the drive shaft via the key, and the guide roller is disposed. The first traveling wheel side is not skewed. In addition, since the other second traveling wheel is rotatably attached to the drive shaft with a slide bearing member interposed therebetween, even if it is preceded when stopped at the traveling movement end, When the preceding traveling wheel receives a force in the direction in which the preceding traveling wheel returns, the second traveling wheel is allowed to rotate with respect to the drive shaft, and the drive shaft can be restored to a parallel posture. That is, the second traveling wheel that is rotatably mounted interferes with the action of the restoring force that tries to return to the original parallel state due to the restoring force by the guide roller provided on the first traveling wheel side or the elastic restoring force of the moving frame. Appears without demonstrating the function of preventing skew. For this purpose, the first traveling wheel is fixed to one of the drive shafts with a key, and the second traveling wheel is rotatably attached to the drive shaft with a sliding bearing member on the other side. Becomes a skew prevention mechanism of the car wash device.

  According to the present invention, in the skew prevention mechanism of the car wash device having the above-described configuration, the second traveling wheel does not contact any member other than the slide bearing member when rotating relative to the drive shaft. It is said. According to this configuration, the second traveling wheel is configured to be relatively rotatable without being in contact with anything other than the sliding bearing member, so that the rotation of the second traveling wheel with respect to the drive shaft is not hindered, and abnormal noise such as friction noise is generated. Does not occur.

  According to the present invention, in the skew prevention mechanism of the car wash device having the above-described configuration, the sliding bearing member is formed of a cylindrical bush longer than a fitting width of the second traveling wheel. According to this configuration, it is possible to prevent the moving frame installed in the car wash apparatus from being skewed by using the cylindrical bush longer than the fitting width of the second traveling wheel.

  According to the present invention, in the skew prevention mechanism of the car wash device having the above-described configuration, the sliding bearing member includes a pair of hooked bushes disposed on both sides of the fitting portion of the second traveling wheel. . According to this configuration, it is possible to prevent the moving frame installed in the car wash device from being skewed by using the pair of bushed bushes.

  According to the present invention, in the skew prevention mechanism of the car wash device having the above-described configuration, the sliding bearing member is a drive bush, and the second traveling wheel is loosely fitted to the drive shaft via the drive bush. It is characterized by having. According to this structure, the skew prevention mechanism of the car wash device can be constructed by loosely fitting the second traveling wheel to the drive shaft via the drive bush that can be used without lubrication.

  According to the present invention, the first traveling wheel is fixed to one of the drive shafts through a key, and the second traveling wheel is rotatably attached to the drive shaft through a sliding bearing member on the other. Since the skew prevention mechanism having the above-described configuration is provided, it is possible to obtain the skew prevention mechanism for the car wash device that can make the parallelism of the pair of left and right traveling wheels of the moving frame uniform with a simpler configuration.

It is sectional explanatory drawing which shows an example of a structure of a drive shaft provided with the skew feeding prevention mechanism of the car wash apparatus which concerns on this invention. It is an expansion explanatory view by the side of the 2nd running wheel. It is an expansion explanatory view by the side of the 1st running wheel. It is a schematic front view of the car wash apparatus of this invention. It is a schematic plan view explaining the skew of the moving frame, (a) shows the state when moved to the right direction, (b) shows the state when moved in the left direction. It is a schematic plan view which shows the structure provided with both the car wash machine and the car wash apparatus. It is a schematic side view which shows the structure provided with both the car wash machine and the car wash apparatus.

  Embodiments of the present invention will be described below with reference to the drawings. Moreover, the same code | symbol is used about the same structural member, and detailed description is abbreviate | omitted suitably.

  As shown in FIG. 4, the car wash apparatus WA of the present embodiment includes a gantry frame 20 that can stop the vehicle CA to be cleaned therein, and a pair of left and right traveling rails F <b> 1 and F <b> 2 that are installed on the upper portion of the gantry frame 20. The moving body 1 moves along the traveling rail. The moving body 1 has a configuration in which a moving frame 10 is provided with a pair of left and right traveling wheels (first traveling wheel 3 and second traveling wheel 4).

  The moving frame 10 is provided with cleaning members such as spray nozzles NA1, NA2, NB1, and NB2. The injection nozzles NA1 and NA2 used for car washing are, for example, water purification nozzles that inject cleaning water, and the injection nozzles NB1 and NB2 are liquid agent nozzles that inject a liquid diluted with water.

  Next, the moving body 1 that reciprocates integrally with the drive shaft 2 and the drive motor 8 attached to the moving frame 10 will be described in detail with reference to FIG.

  The moving body 1 is integrally provided with a moving frame 10, a drive shaft 2 having a pair of left and right traveling wheels 3, 4 mounted and fixed to the moving frame 10, and a drive motor 8 that rotationally drives the drive shaft 2. In addition, one of the traveling wheels 3 is fixed to the drive shaft 2 with a key Ky interposed, and guide rollers 5a and 5b are disposed in the front and rear of the traveling direction, respectively. The wheel 4 is configured to be rotatably attached to the drive shaft via a sliding bearing member 11.

  A pulley 6 is mounted on the drive shaft 2, and the drive shaft 2 is rotationally driven by a drive pulley 7 provided in the drive motor 8 via a belt, a chain, etc., so that the drive shaft 2 is rotationally driven, and a pair of left and right traveling The moving frame 10 travels along the traveling rails F1 and F2 via the wheels.

  The traveling rails F1 and F2 are each composed of a long sheet metal frame that is bent and includes a traveling surface Fa. In addition, a guide guide portion Fb that slidably accommodates the guide rollers 5a and 5b is formed in the upper portion. For this purpose, the guide rollers 5a and 5b slide along the guide guide portion Fb, the pair of left and right traveling wheels travel on the traveling surface Fa, and the movable body 1 is kept parallel while maintaining its parallelism. Moving.

  The drive shaft 2 is rotatably supported via bearing members BR1, BR2, BR3, and BR4 attached to the moving frame 10. The drive motor 8 is also fixedly supported on the moving frame 10. Further, spray nozzles NA1, NA2, NB1, and NB2 for injecting cleaning water and liquid agent toward the vehicle to be cleaned are mounted and fixed on the lower frame 10a of the moving frame 10 in a posture facing a predetermined direction.

  The first traveling wheel 3 is fixed to one end of the drive shaft 2 via a key Ky, and guide rollers 5a and 5b are disposed on the first traveling wheel 3 side S1. Therefore, the first traveling wheel 3 side S1 can always maintain a posture parallel to the traveling rail F1.

  On the other hand, guide rollers 5a and 5b are not disposed on the second traveling wheel 4 side S2. Further, the second traveling wheel 4 is not key-fixed to the drive shaft 2, and can be rotated with respect to the drive shaft 2 via a sliding bearing member 11. Even if the second traveling wheel 4 is attached to the drive shaft 2 so as to be rotatable, the second traveling wheel 4 rotates with the drive shaft 2 and travels stably during normal traveling.

  The sliding bearing member 11 may be either a cylindrical type or a hooked type, but if it is a cylindrical type, it is preferable that the sliding bearing member 11 is constituted by a cylindrical bush longer than the fitting width of the second traveling wheel 4. Moreover, if it is a hooked type, it is preferable to comprise from a pair of hooked bushes arrange | positioned at the both sides of the fitting part of a 2nd traveling wheel.

  In any case, when the second traveling wheel 4 rotates with respect to the drive shaft 2, it is preferable that the second traveling wheel 4 does not contact the iron member but rotates only in contact with the sliding bearing member 11.

  As the sliding bearing member 11, for example, a drive bush that can be used without lubrication can be used. Further, as the bush with a hook, a DDK05 bush with a hook (manufactured by Daido Metal Industry Co., Ltd.) in which a copper-tin alloy is sintered in a porous material and a fluorinated ethylene resin or the like is lined can be used. This bushed bush has good sliding characteristics, the strength and dimensional stability of metal materials, and exhibits low friction coefficient and wear resistance under no lubrication, so it reciprocates the injection nozzle of the car wash device WA. It is suitable as a sliding bearing member used for a moving body that moves.

  For example, as shown in FIG. 2, a small-diameter shaft portion 2a is formed at the shaft end of the drive shaft 2, and the second drive wheel 4 having the flanged bushes 11A and 11B attached to the small-diameter shaft portion 2a is brought into a loosely fitted state. Install. Further, the fixing in the axial direction is performed using the stopper 13 in a state where the washer 12 is in contact with the flange portion of the flanged bush so as not to be displaced. For the stopper 13, for example, a split pin member attached to a through hole provided in the shaft can be used.

  Thus, when the second traveling wheel 4 rotates relative to the drive shaft 2, it is preferable that the second traveling wheel 4 does not come into contact with any member other than the sliding bearing member. If it is this composition, the 2nd running wheel 4 will be the composition which can be rotated relatively without contacting other than slide bearing member 11, rotation with respect to drive shaft 2 of the 2nd running wheel 4 is not disturbed, No abnormal noise such as friction noise is generated. Further, since the second traveling wheel 4 is fixed in position so as not to be displaced via the stopper 13 and is in a loosely fitted state, for example, the second traveling wheel 4 is attached to the drive shaft 2 to such an extent that a person can turn it by hand. It is set as the structure which can be rotated with respect to it.

  On the other hand, in the first traveling wheel side S1 shown in FIG. 3, as described above, the first traveling wheel 3 is key-fixed to the small diameter shaft portion 2b formed at the shaft end of the drive shaft 2 with the key Ky interposed. ing. In addition, guide rollers 5a and 5b are provided before and after the reciprocating movement direction indicated by the arrow D in the drawing, and are configured to maintain parallelism with the traveling rail.

  Next, the first traveling wheel is fixed to one of the drive shafts with a key, and the second traveling wheel is rotatably supported with respect to the drive shaft by interposing a sliding bearing member on the other side. However, it will be described with reference to FIG. 5 that it becomes a skew prevention mechanism of the car wash apparatus.

  As shown in FIG. 5 (a), when the moving body 1A at one moving end moves in the direction of arrow D1 in the drawing and reaches the other moving end and stops, the first traveling wheel 3 side is guided. Although it can be stopped while maintaining parallelism via a roller, the second traveling wheel 4 side stops before the traveling direction side. That is, as shown by the broken line in the figure, the drive shaft 2 is tilted and the moving frame 10 is once skewed (moving body 1B).

  In this skewed state, for example, in a state where the second traveling wheel 4 is key-fixed to the drive shaft 2, the resistance of the second traveling wheel 4 to rotate becomes very large. Even if 2 tries to return to the original parallel state, the second traveling wheel 4 does not rotate and remains skewed.

  However, as in the present embodiment, if the second traveling wheel 4 is rotatably attached to the drive shaft 2 (for example, loosely fitted), it will be preceded when stopped at the traveling movement end. In this case, the second traveling wheel 4 is allowed to rotate relative to the drive shaft 2 when the preceding traveling wheel receives a force in the direction in which the preceding traveling wheel returns in a reaction, and the drive shaft 2 That is, the moving frame 10 can be restored to the parallel posture (moving body 1C).

  That is, the loosely-fitted second traveling wheel 4 interferes with the action of the restoring force for returning to the original parallel state due to the restoring force by the guide roller provided on the first traveling wheel side or the elastic restoring force of the moving frame. Appears without demonstrating the function of preventing skew. For this purpose, the first traveling wheel is fixed to one of the drive shafts 2 by means of a key, and the second traveling wheel is rotatably attached to the drive shaft by means of a sliding bearing member 11 to the other side. The configuration serves as a skew prevention mechanism of the car wash device WA.

  For this reason, as shown by the arrow D2 in the figure, even if the preceding moving body 1B is in a skew state, the preceding traveling wheel receives a force in the direction of returning by reaction and moves in the direction of the arrow D3, The skewed state indicated by the broken line is suppressed, and the moving body 1C is restored in which the moving frame 10 is restored to a substantially parallel state.

  As described above, since the skew state is restored to be substantially parallel at the moving end, the moving body 1C at the other moving end is smoothly moved from this state in the direction of the arrow D4 as shown in FIG. 5B. It is possible to reversely move.

  Further, when the moving frame 10 moves in the direction of the arrow D4 and arrives at one moving end, the second traveling wheel 4 side not provided with the guide roller is temporarily in a skew state as indicated by the arrow D5, Then, in response to a force returning in the direction of the reverse arrow D6, the skew is corrected and the moving body 1D restored to a substantially parallel state is obtained.

  As described above, the first traveling wheel is fixed on one side of the drive shaft by fixing the key, and the second traveling wheel is rotatably mounted on the drive shaft by inserting the drive wheel on the other side ( For example, it has become clear that the configuration (for example, in a loosely fitted state) is a mechanism that stably travels during normal travel and that exhibits a skew prevention function during reversal.

  As shown in FIG. 4, the car wash device WA including the spray nozzles NA1, NA2, NB1, and NB2 such as water purification nozzles and liquid agent nozzles can be used as a single car wash device. It is also possible to use this car wash device WA in combination with a gate-type car wash machine that can wash the car more effectively. FIG. 6 and FIG. 7 are used to integrate the car wash device WA and the gate-type car wash machine WB. The car wash equipment provided in will be described.

  As shown in the plan view of FIG. 6 and the side view of FIG. 7, this car wash equipment has a structure in which a car wash device WA is installed in front of the gate-type car wash machine WB.

  The gate-type car wash machine WB is a self-propelled car wash machine that runs and moves along the rails R. The car wash machine WB runs and moves in the front-rear direction of the vehicle to be cleaned CA that is stopped between the pair of left and right rails R. A car washing process is performed by spraying and brushing liquid and spraying and drying by blowing dry air. Since this car wash process is a conventionally known car wash process, it will not be described in detail here.

  Further, the car wash apparatus WA has a gantry frame 20 installed so as to straddle the pair of left and right rails R, and performs a predetermined car wash process on the vehicle to be washed CA stopped between the pair of left and right rails R. To implement. Further, the car wash device WA is also configured to straddle the gate type car wash machine WB so as to allow the traveling movement of the gate type car wash machine WB.

  For example, the gantry frame 20 is a steel frame structure in which a support column 21 and a connecting member 22 configured using metal pipes, mold steel, and the like are assembled in a frame shape, and includes an upper brace 23 shown in FIG. 6 and a side portion shown in FIG. The braces 24 are stretched so that a strong frame strength is exhibited.

  In addition, a pair of left and right traveling rails F1 and F2 are disposed at a predetermined height position of the gantry frame 20, and the moving body 1 provided with traveling wheels and various injection nozzles is mounted on the moving frame so as to freely travel. .

  For this purpose, a car wash process by the car wash device WA and a gate type while moving the moving body 1 in the front-rear direction of the car to be washed CA with respect to the car to be washed CA stopped at a predetermined position between the pair of left and right rails R. This is a car wash facility capable of performing the car wash process by the car wash machine WB individually and continuously.

  If the car wash equipment is configured to continuously use the car wash device WA and the gate type car wash machine WB, the car wash device WA is used to perform preliminary washing in advance to remove large deposits and terrible dirt, thereby improving the car wash effect. The car wash process of the first stage for spraying the high foaming detergent for the car can be executed, and the detailed car wash process by the next-stage door-type car wash machine WB can be executed. preferable.

  As described above, the skew prevention mechanism of the car wash apparatus according to the present embodiment fixes the first traveling wheel by interposing a key on one side of the drive shaft, and interposing the sliding bearing member on the other side. It is set as the simple structure which attaches the driving | running | working wheel of this to a drive shaft so that rotation is possible (for example, loosely fitting).

  Therefore, it is preferable as a skew-preventing mechanism of the car wash device that enables the parallelism of the pair of left and right traveling wheels of the moving frame to be equalized with a simpler configuration.

  As described above, the car wash device WA according to the present embodiment includes the moving frame 10 that moves along the traveling rail F installed on the upper portion of the vehicle CA to be cleaned, and the injection nozzle installed on the moving frame 10. When the vehicle is washed using the vehicle, the vehicle has a skew prevention mechanism for the car wash device that makes it possible to align the parallelism of the pair of left and right traveling wheels of the moving frame with a simpler configuration.

  In addition, since the moving body having various injection nozzles that travel and move in the front-rear direction of the upper portion of the vehicle to be cleaned can be reciprocated while preventing skewing, the traveling speed of the moving body is increased, It becomes possible to shorten the car wash time of the car wash apparatus WA.

  Therefore, the skew prevention mechanism of the car wash apparatus according to the present invention is suitably applied to a car wash facility of a car wash place that is required to shorten the car wash time and increase the car wash efficiency.

DESCRIPTION OF SYMBOLS 1 Moving body 2 Drive shaft 3 1st traveling wheel 4 2nd traveling wheel 5a, 5b Guide roller 8 Drive motor 10 Moving frame 11 Sliding bearing member 11A, 11B Bushing bush (drive bush)
20 Mounting frame S1 First traveling wheel side S2 Second traveling wheel side F, F1, F2 Traveling frame CA Washed vehicle WA Car wash device WB Gate type car wash machine

Claims (5)

A frame that can stop the vehicle to be cleaned inside, a pair of left and right traveling rails installed on the top of the frame, a moving frame having a pair of left and right traveling wheels that move along the traveling rail, and this movement A skew prevention mechanism for a car wash device that includes a spray nozzle disposed in a frame and that performs washing by spraying washing water or liquid from the spray nozzle,
The moving frame includes a drive shaft on which the pair of left and right traveling wheels are disposed, and a drive motor that rotationally drives the drive shaft,
One of the pair of left and right running wheels is a first running wheel fixed to the drive shaft via a key, and the other is rotatably attached to the drive shaft via a sliding bearing member. As the second traveling wheel,
The first traveling wheel side is configured to maintain the parallelism by arranging guide rollers before and after the traveling movement direction,
A skew prevention mechanism for a car wash device, wherein the second traveling wheel side is configured to be easily movable without being provided with a guide roller and to be restored to a parallel posture .   The skew-preventing mechanism for a car wash apparatus according to claim 1, wherein the second traveling wheel does not contact any member other than the sliding bearing member when rotating relative to the drive shaft.   3. The skew prevention mechanism for a car wash apparatus according to claim 1, wherein the sliding bearing member is a cylindrical bush longer than a fitting width of the second traveling wheel.   The skew-preventing mechanism for a car wash device according to claim 1 or 2, wherein the sliding bearing member comprises a pair of hooked bushes disposed on both sides of the fitting portion of the second traveling wheel.   5. The skew prevention mechanism for a car wash apparatus according to claim 1, wherein the sliding bearing member is a drive bush, and the second traveling wheel is loosely fitted to the drive shaft. .

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