JPS5830857A - Tire cleaning equipment - Google Patents

Abstract

PURPOSE:To start cleaning operation automatically by installing switches which detect a downward motion produced by a tire of a specific tire treading mem ber. CONSTITUTION:Roller brushes 22 and 23 for cleaning means 3 and 4 which also serve as a tire detection treading member are installed in parallel to paired rollers 5, 6, 7 and 8 for a front supporting roller unit 1 and a rear supporting roller unit 2, and are supported between a pair of arms 25 and 26, swinging freely up and down. Motors 29 and 30 designed to interlock with the brushes 22 and 23 are respectively installed at one end of each arm 22 and 23, while a balance weight 31 is installed at the other free end of each arm. The balance weight 31 exerts its gravity on the brushes 22 and 23 in an upward direction. Tire detection limit switches 53 and 54, which are operated by a downward swing motion of the arm 26 are installed. With the operation of said switches, a drive means 20 for the roller 5 and the motor 29 etc are driven. The switches 53 and 54 are further provided with a timer (not illustrated) which operates the motor 29 only when the setting time continues. This construction prevents wrong operation.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tire cleaning machine that cleans an automobile tire while rotating it while supported by a support roller device. To provide a tire washer that can reliably detect the state in which a tire is supported and automatically start cleaning.

Hereinafter, one embodiment of the present invention will be described based on the attached illustrative drawings. Reference numeral 1 denotes a front support roller device, 2 a rear support roller device, 6 a front cleaning means, and 4 a rear cleaning means. The front and rear support roller devices 1.2 each include a pair of front and rear rollers 5.
, 6, 7, and 8, each reeler is supported at both left and right ends by a frame 10 by bearings 9, and is provided with a reverse rotation prevention means 11 at one end. This reversal prevention means 11
It consists of a ratchet gear 16 fixed to a winter shaft 12 and a ratchet pawl 14 pivotally supported on a frame 10. Although the ratchet pawl 14 is adapted to engage the ratchet gear 12S by its own weight, a spring may also be used in conjunction with the ratchet pawl 14. One of the two rollers 5.6 of the front support roller device 1, the leading roller 5 in the embodiment, includes a chain reduction transmission means 15, an intermediate shaft 16, a torque limiter 17, a chain reduction transmission means 16, A drive means 21 consisting of a speed reducer 19 and a motor 20 enables the supported tires to be driven in a direction that rotates them in the backward direction.

Both the front and rear cleaning means 6, 4 are provided with roller brushes 22 which are arranged between the rollers 5, 6 and between the rollers 7, 6 in a state extending parallel to these rollers, and also serve as a tire detection stepping member.
, 2$, and each roller brush 22.25 has a shaft 2, respectively.
A core shaft 27.26 is supported at both ends between a pair of arms 25 and 26 that can freely swing up and down around the 4, and the arm 26 on one end side is formed in an L shape, with a Motor 29, i5 interlocked with roller brush 22, 25
Further, a balance weight 31 is attached to the free end of both arms 25, 26, and the gravity of the balance weight stabilizes the roller brush 22, 23 at the upper limit position between the rollers 5 and 6 and between the rollers 7 and 8. It is biased upward as much as possible. or,
Both cleaning means 3.4 include a water spraying means 53 which sprays water from a spray pipe 62 piped parallel to the rollers into the tire grounding surface or the gap between the tires of the double tire, and a supporting roller device 1.2. On both sides of the roller, there is provided a spray pipe 54 that is piped at a substantially right angle to the roller, and a water injection means 66 that sprays water from an elbow 55 attached to the spray pipe 32 to the ground contact surface of the tire or the inside of the rim. ing.

Instead of using the elbow 55, water may be sprayed from a spray pipe i57 piped in the center of the support roller devices 1, 2 in parallel with the spray pipe 54, in each of the cleaning means 6.4. The spray pipe belonging to 32. i
54 and 37 are respectively connected to pumps 58 and 259, and water in the water tank 40 is supplied at a predetermined pressure. 41 is a Y-type strainer, and 42 is a sakushi filter.

The water tank 40 is constituted by a concrete structure 42s that supports the frame 10, and is provided with a mud discharge conveyor 44 inside.

No. 45 is a chino that circulates and drives the earth removal tool 46, and is driven by a motor 47 with a speed reducer. The end of the earth removal path by the earth removal tool 46 is arranged horizontally above the chute 48 provided at a predetermined height above the ground, preferably in an inclined state with the free end at the lower side, and scoops up the mud onto the chute 48. drop it to The frame 49 of this conveyor 44 is frame 1
0 and is independently fixed to the concrete structure 45. A part of the water tank 40 is provided with a water suction section 52 separated by a low partition wall 50 and a filter partition wall 51 mounted on the partition wall 50, and the pump 58. A Succine filter 42 of $2.9 is inserted.

Instead of using two pumps 58, 59, it is also possible to supply water from one pump to the spray pipes of both cleaning means via two optionally openable and closable solenoid valves.

Reference numerals 5 and 54 denote limit switches for tire detection, which are activated by the downward swinging of each roller support arm 26 in both the front and rear cleaning means 6.4. Based on the operation of the front tire detection limit switch 56, the motor 20 of the roller drive means, the motor 29 of the front cleaning means 3, and the pump 68 are operated, and the rear tire detection limit switch 5 is operated.
40 operation, the motor 30 and pump 39 of the rear cleaning means 4 operate. However, this motor 60 and pump 3
The electric control system 9 is configured so that it is operated only when the motors 20, 29 and the pump 66 are operated, and is not operated when there are tires only on the rear support roller device 2.

Further, the electric control system includes limit switches 56 and 54.
At the same time, the motor 20.29°60 and pump 5
8. Danger due to operation of 2s9 (if motors 20, 29, 250 or pump i56.39 operate when a person steps on the roller brush 22.25 or a vehicle simply passes over the cleaning device, it may cause an accident) In order to avoid this, the motor 20, 29, 50 and pump 38. A delay circuit 55 is incorporated so that 59 is activated. This delay circuit 55
It is desirable to use a timer relay whose set time can be changed arbitrarily. 56 is a timer that can arbitrarily set the cleaning time, and when the time set by this timer 56 has elapsed, the motor 20, 29, 30 and pump 58, 39
automatically stops, and after the limit switch 5:5.54 is activated, the buzzer 57, which has been continuously operating, also automatically stops.

58 is a curtain brush for preventing water scattering, and 59 is a tire guide.

Next, to explain the tire cleaning method and operation, the vehicle 60 is advanced into both tire guides 59 in the direction of the arrow 61 while pushing the curtain brushes 58 apart, and the front and rear tires 62 are moved into the rollers 5 and 5 of the front support roller device 1. 6 and the rear rear tire 62s is the rear support roller device 2.
The vehicle 60 is stopped while the vehicle is stuck between the rollers 7 and 8, and then the gear of the vehicle is switched to neutral and all brakes are released to free the rear axle. At this time, the roller brushes 2 of both the front and rear cleaning means 6, 4
2.23 is stepped on by the tires 62, 6S, and descends with the swinging of the arm 25.26 against the biasing force of the balance weight S1. Limit switch 52 prevents this descent.
The roller brush 22 is detected by the roller brush 22 continuously during the set time of the delay circuit 55 which is detected by the S, 54 and activated by the detection operation.
．． 25 is depressed, after the set time elapses, the motor 20 drives the roller 5, the pump 38.59 supplies pressurized water to the spray pipe 52.34, and the motor 29
, 2SO start driving the roller brushes 22, 22S.

As a result, the front rear tires 62 are driven by the rollers 5 in the rotational direction when traveling backward, and the rear rear tires 65 are interlocked with the front rear tires 62 through the transmission mechanism of the vehicle itself and are driven on the rollers 7.8 in the same direction. Rotate. At the same time, the high-pressure water injected from the spray pipe 32.54 and the plastic nosing action of the roller brush 22.23 cause not only the ground contact surface, but also the gap between the tires of the double tire, the outer surface of the tire, and the inner side of the rim. Washed. When the cleaning time set in advance by the timer 56 has elapsed, the drive of the roller 5 and roller brushes 22, 223 and the supply of high-pressure water are stopped, and the buzzer 57, which was activated at the same time as the roller brushes 22 and 26 are depressed, is stopped. After the cleaning is finished, the vehicle 60 is moved forward in the normal manner. Since the rollers 5 to 8 cannot be reversed due to the reverse rotation prevention means 11, the rear tires 62 rotate in the forward direction. 63, it is possible to climb over the rollers 5 to 7 and exit out of the cleaning device.

When cleaning the front tires of a vehicle or the rear tires of a single axle, the tires to be cleaned can be supported on the front support roller device 1 and cleaned in the same manner. In this case, the drive of the roller brush 26 on the side that is not depressed and the high-pressure water injection on this side do not take place, and of course the roller 7.8 does not rotate.

The water sprayed by the cleaning means 6, 4 uses the water stored in the water tank 40, and the water after spraying returns to the water tank 40 together with the mud, so that the amount of water that has adhered to the vehicle body or scattered around the vehicle body is compensated for. Water may be supplied into the water tank 40. Further, it is desirable that the water tank 40 is provided with an overflow drain port so that water does not accumulate above a certain water level.

The water in the water tank 40 contains mud. A flocculant can be used to settle this mud as quickly as possible. This flocculant may be mixed manually or automatically in an appropriate amount into the water stored in the water tank 40 at the appropriate time.

If a vehicle stopped at a predetermined position is erroneously braked by the foot brake or handbrake, an overload will occur on the drive means for the rollers 5, but at this time the torque limiter
This torque limiter 1 is designed so that slippage occurs at 17.
By setting the transmission torque of 7, it is possible to avoid damage to the drive means and adverse effects on the vehicle.

The mud that settles in the water tank 40 can be removed manually by the motor 47 at any time, or automatically at a set time such as during cleaning.
The conveyor 44 can be driven to discharge water out of the water tank 40.

The tire washing machine according to the present invention can be implemented as described above, and in a tire washing machine that washes an automobile tire while rotating it with the support roller device supporting the tire, the support roller device has the support roller device. - A tire pushing member (roller brush 22.2+5 in the embodiment) extending parallel to the tire support roller is vertically movably supported, and a biasing means (balance weight in the embodiment) that urges the tire pushing member upward. 2s1) and a switch for detecting a downward movement when the tire depression member is depressed by the tire supported by the support roller device against the biasing force of the biasing means, Since the cleaning action is started when the detection state exceeds the set time of 11 m, the following effects can be expected.

In other words, compared to the case where the tire is detected using a phototube switch placed across the vehicle path or a limit switch with an actuator that contacts the side surface of the tire, guard plates, guard bars, etc. are installed on the sideways part of the tire. Even if the vehicle is in a state where the tire is supported by the acid at a predetermined position on the support roller device, it can be reliably and accurately detected. Furthermore, when using the phototube switch, there is a risk that mud scattered during cleaning may adhere to the phototube starting part or light receiving part, resulting in poor detection operation.However, according to the present invention, as described above, Since it is only necessary to detect the downward movement of the tire depression member which is depressed by the tire using a switch, there is no possibility that the detection malfunction due to the above-mentioned phenomenon will occur. Moreover, since the tire tread member number extends parallel to the roller of the support roller device,
Similar to the case where a phototube switch is used, tire detection can be performed reliably even if there is variation in the left-right lateral direction of the vehicle's entry position.

In addition, if a phototube switch is used as described above, a detection operation will also be performed when a person passes over the tire washer, and if a switch with an actuator is used as described above, a detection operation will also be performed when a person passes over the tire washer. Whereas an erroneous detection operation is performed if the traffic position is just near the lateral edge, according to the configuration of the present invention, a person passing over this tire washing machine does not step down on the tire stepping member. Even if you depress the pedal by mistake, the cleaning action will not start unless you depress it for a set amount of time.For example, if a tire washer is installed across the width of the aisle , safety can be sufficiently ensured even when people frequently pass over the tire washer. It is also possible to safely move a vehicle over the tire washer.

As described above, according to the configuration of the present invention, when a tire is placed on the support roller device for cleaning, the tire can be reliably detected and the cleaning action can be automatically started. It has now been possible to ensure sufficient safety for people and vehicles to pass over this tire washer.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a plan view, Fig. 2 is a partially longitudinal rear view, Fig. 3 is a longitudinal side view showing the cleaning state, and Fig. 4 shows the ends of each roller. FIG. 5 is a schematic plan view illustrating the armrests, and FIG. 6 is a diagram illustrating the electric control system. DESCRIPTION OF SYMBOLS 1... Front support roller device, 2... Rear support roller device, 6... Front cleaning means, 4... Rear cleaning means,
5-8...Roller, 11...Reverse rotation prevention means, 15.
18... Different reduction transmission means, 17... Torque limiter-119... Reduction gear, 20.29. 30...
Motor, 22.2B... Self-rubbing brush (member for tire depression), 25.26... Arm, 61... Balance weight, 2$2.64.61 x play tube, 35.
56-...Water injection means, 2$8.59...Pump, 4
0...Water tank, 44...Mud discharge conveyor, 53.
54...Limit switch for tire detection Patent applicant Kunimoto Shokai Co., Ltd.

Claims (1)

[Claims] In a tire washing machine that cleans an automobile tire while rotating it while supported by a support roller device, a tire treading member extending parallel to the tire support roller of the support roller device is supported so as to be vertically movable. Also, a biasing means for biasing the tire depression member upward, and a downward pressure when the tire depression member is depressed by the tire supported by the support roller device against the biasing force of the biasing means. A tire washing machine is provided with a switch for detecting movement, and starts a cleaning action when a state of detection during tie by this switch continues for a set time or more.