JPS6274754A - Supporting mechanism of side washing brush in car washing device - Google Patents

Abstract

PURPOSE:To make it possible to add abutting pressure of being substantially constant on front and rear sides of a vehicle, by swingably supporting bearing means, adapted to hold a pair of rotary shafts of right and left side washing brushes, by means of a pallalelogram link via shafts, which are horizontal and perpendicular to the moving direction of a running frame. CONSTITUTION:In a running frame 1, which runs on tracks 25, 25' by means of driving wheels 11, 11' and follower wheels 12, 12', a pair of right and left main swing arms 15, 15' and a pair of right and left sub-swing arms 16, 16 are supported respectively by pairs of perpendicular shafts 17, 17' and 18, 18'. A pair of link elements 14, 14' are supported by perpendicular shafts 19, 19; and 20, 20' at respective tip ends of arms 15, 15' and 16, 16' to from pallalelogram links. The link elements 14, 14' are adapted to rotatably support horizontal shafts 6, 6' held fixedly by bearing means 3, 3', which hold the rotary shafts of side washing brushes 2, 2'. Between the arms elongated vertically from ends of the horizontal shafts 6, 6', and the link elements 14, 14'. a pair of upper and lower compression springs 24, 24' are interposed so as to hold the washing brushes 2, 2' such that they are in their vertical positions.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a car washing device having a plurality of rotating washing brushes supported on a traveling frame so as to follow the top surface and front and rear sides of a vehicle.

[Conventional technology]

The side cleaning brushes supported by the running frame move while following the front and rear sides of the vehicle. To describe their operation, the pair of rotating side cleaning brushes are in a closed state, that is, located near the center of the running frame. When it moves toward the vehicle together with the running frame and receives a certain contact pressure from the front or rear side of the vehicle, the running frame stops, and during that time the side cleaning brush moves in the opening direction and away from the center of the running frame. Wash the front or rear of the vehicle. When the side cleaning brush reaches the maximum amount position,
At the same time that the side cleaning brush is given the habit of moving fjJ in the closing direction, the traveling frame starts moving again.

In this way, the side cleaning brush enters the next cleaning process, i.e. the process of cleaning the sides of the vehicle, and then, when it reaches the rear or front of the vehicle, it moves in the closing direction due to its given movement habit and cleans the sides of the vehicle. When the rear or front part of the front part is cleaned and the side cleaning brush reaches the open position, one cleaning process of the pre-invasive side is completed.

In the operation of the side cleaning brush mentioned above, it is necessary to detect that the side cleaning brush receives a certain amount of contact pressure from the front or rear of the vehicle, but this is done by a minute displacement of the side cleaning brush that retains its elasticity. Therefore, the side cleaning brush has conventionally been supported by the method described below.The first method is to use a bogie that runs on a rail that is suspended horizontally on the top of the traveling frame in a direction perpendicular to the traveling direction. A bearing device for the side cleaning brush is mounted on a shaft parallel to the rail, and the bearing device is resiliently held at a neutral position with the rotational axis of the side cleaning brush in the vertical direction.

In addition, according to the second method, the bearing device of the side cleaning brush is attached to the tip of the swinging arm that is swingably fixed on the traveling frame.
The middle part of the swinging arm is held elastically so as to be able to bend and extend, and the contact pressure between the side cleaning brush and the vehicle is detected by the bending and extension displacement of the Jffli11 arm.

[Problem that the invention seeks to solve]

The conventional method has the following drawbacks.

According to the first method, various troubles occur because the cart supporting heavy objects such as the side cleaning brush and its bearing device or rotary drive device is run for a long distance in an atmosphere where splashes of mud and the like are present. In other words, when a trochanter is used between the bogie and the rail, water, dirt, etc. can easily enter the trochanter's bearing part, which makes the trochanter's rotation uneven, and in extreme cases, the trochanter's rotation can become uneven. Sometimes it stops. When the cart is slid along the rails, the grease applied to the rails is degraded by splashes of muddy water, making the movement of the cart uneven and the friction of the rails increasing.

In the case of the second method, since the rotating side cleaning brush is held in a cantilevered manner, if the tip of the side cleaning brush receives contact pressure from the vehicle, a large bending moment must be supported by the bearing. Life expectancy will be shortened. Furthermore, since the middle portion of the swinging arm that supports a heavy object is elastically held in a bendable and extensible manner, manufacturing costs are also high.

[Failure to solve the problem]

In the present invention, the tips of the main rocking arm and the auxiliary rocking arm, which are swingably supported on the traveling frame, are rotated at two locations of the link element so that they are at opposite corners, and the auxiliary rocking arm is moved to the above-mentioned solid rocking arm. The arm, the link element, and the running frame constitute a parallelogram link, and the link element maintains the same posture but moves in an arc substantially in a direction perpendicular to the running direction of the running frame,
A bearing device that holds the rotating shaft of the side cleaning brush is mounted on the link element so as to be swingable in the traveling direction of the traveling frame, and the n bearing devices are set in a neutral position with the rotating shaft of the side cleaning brush in the vertical direction. It is held elastically in position, and a microswitch or the like is used to detect the rocking between the main bearings due to the contact pressure between the vehicle and the side cleaning brush.

[For production]

With the side cleaning brush in the closed position, the traveling frame is run, and by detecting the inclination of the side cleaning brush when a certain amount of contact pressure is applied to the side cleaning brush from the vehicle, the traveling frame is temporarily stopped, and the side cleaning brush is stopped while the traveling frame is running. By moving the cleaning brush in an arc in the opening direction and when it reaches the maximum position, the traveling frame is made to travel again and at the same time, the cleaning brush is given a movement behavior in the closing direction, thereby creating a substantially constant distance between the front and rear and side cleaning brushes of the vehicle. It becomes possible to perform the cleaning operation while applying contact pressure.

[Example] An example of the present invention will be described with reference to the drawings. In the figure, the king is running the drive wheel 11.11' on the rail 25.25'.
It is a traveling frame that moves with the rotation of driven wheels 12.12' and 12.12', and a pair of left and right main swinging arms 15.15' and auxiliary swinging arms 16.16' are connected to vertical axes 17.17' and 18.12'.
The shaft is fixed at 18'. The tips of the main swing arm 15.15' and the auxiliary swing arm 16.16' are connected to the vertical shaft 19.1.
9' and the vertical axes 20 and 20' form opposite corners with the link elements 14 and 14', and the traveling frame, the main rocking rib arm, the auxiliary rocking arm and the link elements form a parallelogram link. A cable 22 is attached to one end of the main swing arm 15.15'.
, 22', a weight 23°23' is suspended to provide a swinging habit in the closing direction. Also, at the other end of the main swing arm 15.15' is an air cylinder 21.2'l'.
The main swing arm 15°15' is connected to the traveling frame 1 through the
can be swung in the opening direction.

At this time, the link elements 14, 14' move in an arc without changing their posture. Further, the link element 14° 14' is a bearing device 3.3' that holds the rotating shaft of the side cleaning brush 2.2'.
A pair of upper and lower compression springs 24 are disposed between the arm extending vertically from one end of the horizontal shaft 6.6' and the link element 14°14'. .24
' is placed in 5L.

Due to the action of the compression spring 24.24', the bearing device 3°3'
is elastically held so that the rotating axes of the brushes 2 and 2' are in the vertical direction. A cam 7 is fixed to one end of the hydraulic shaft 6 fixed to the bearing device 3 on the right side in the figure, and the side cleaning brush 2 is moved downward in the IC of FIG.
・Constant angle! When the cam 7 moves, the cam 7 activates a limit switch 8 mounted on the link element 14. Note that a top surface cleaning brush that follows the top surface of the vehicle while rotating to clean the top surface of the vehicle and a nozzle that sprays jet water toward the vehicle are not shown.

Next, the operation of this embodiment will be explained. The vehicle is stopped under the traveling frame (2), and the traveling frame is moved in the direction of the arrow shown in the figure by transmitting the rotation of the prime mover 9.9' to the driving wheels 11.11' via the reduction gear 10.10'. At this time, jet water is sprayed onto the vehicle from a nozzle (not shown), and the pair of left and right side cleaning brushes 2.2' are moved by the electric motor 5.
, 5' is transmitted through the reducer 4.4' and rotates, and the main swing arm 15.15' is rotated by the stopper 13.
．． 13', that is, the position where the side cleaning brush is closed as shown in the figure. Next, the side brushes 2゜2' receive contact pressure from the front of the vehicle due to gravity and the upper compression spring 24.
When the cam 7 tilts at a certain angle against the force of , the cam 7 activates the limit switch 8. At this time, the traveling frame is temporarily stopped by a signal from the limit switch 8, and at the same time compressed air is applied to the air cylinders 21 and 21', and the side cleaning brush moves at a constant speed in the opening direction. That is, the front of the vehicle is cleaned. Compressed air is added to the air cylinders 21, 21' by a piping device shown in FIG. In other words, compressed air! 30 air is supplied through a three-way solenoid valve 38, a check valve 33.
The air is supplied through the throttle valve 32 to the air cylinder 21.21'. Also, at this time, the solenoid valve 35 is closed.

The speed of movement vJ of the cleaning brush in the opening direction can be set to an arbitrary speed by adjusting the throttle valve 32.

The main 1″JA#l is controlled by a limit switch (not shown).
When the position of the side cleaning brush indicated by the dotted line in the diagram showing the J-arm 15 in its most open position is detected, the traveling frame is moved again in the direction of the arrow in the diagram, and at the same time, the solenoid valve 35 is opened and the three-way solenoid valve 38 shuts off the port connected to the compressed air tank and opens the port between the throttle valve 31 and the open pipe 37. The air in the air cylinder 21, 21' is routed through the solenoid valve 35, the throttle valve 36, and the check valve 34. Throttle valve 31, three-way solenoid valve 38. The main swing arm 15, 15' is rapidly closed by the action of the weights 23, 23' which are discharged to the outside through the path of the open tube 37. The time that the solenoid valve 35 is open is set by a timer, and when the side cleaning brushes 2, 2' reach approximately the side of the vehicle, the solenoid valve 35 is opened.
5 is closed, and the moving speed of the main swing arm 15, 15' thereafter becomes a relatively slow speed set by the throttle valve 31.

In this way, the running frame I advances while a constant contact pressure is applied between the side cleaning brushes 2, 2' and the side surfaces of the vehicle due to the action of the weights 23, 23', and the side surfaces of the vehicle are cleaned. When the side cleaning brushes 2, 2' reach the rear end of the side of the vehicle, the side cleaning brushes are closed by the action of the weights 23, 23', but the movement speed at this time is limited by the action of the throttle valve 31 and remains constant. Do not exceed the speed. During this time, the rear of the vehicle is cleaned. In this way, the side cleaning brush
When the main swing arm 15 is closed to the maximum closed position, one cleaning process is completed, and this is detected as a movement of the main swing arm 15 by a limit switch (not shown). The top surface of the vehicle is cleaned by the top surface cleaning brush that follows the top surface of the vehicle during the forward stroke of the traveling frame (3), but the top surface cleaning brush is not shown because it is supported by a conventionally known method.

Furthermore, if another cam is provided on the horizontal shaft 7 and a limit switch activated by this cam is provided, it is possible to detect the inclination of the side cleaning brush 2 in the opposite direction to the above, and it is possible to wash the vehicle even during the backward stroke of the traveling frame. It can be done.

〔Effect of the invention〕

In the present invention, the rotating shaft of the side cleaning brush is supported so as to be able to swing freely, so that the large load generated by the pressing force from the vehicle is not applied to the bearing, and the life of the bearing can be extended. A device with a small load can be used. Furthermore, since the bearing device of the side cleaning brush is supported by the swinging arm, the bearing that locks the swinging arm is located in a fixed part that is not easily exposed to splashes, and it is easy to seal, which can also cause problems such as poor rotation of the bearing. do not.

[Brief explanation of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention, FIG. 2 is a front view thereof, and FIG. 3 is a system diagram showing a compressed air supply device to an air cylinder. 1... Traveling frame, 2. 2'... Side cleaning brush, 3.
3'...Bearing device, 6.6'...Horizontal shaft, 14.1
4'...Link element, 15.15'...Main swing arm, 16.16'...Auxiliary swing arm.

Claims (1)

[Claims] A top cleaning brush that is rotatably supported by a traveling frame that runs across the vehicle so as to be movable relative to the traveling frame and that cleans the top surface of the vehicle, and a pair of left and right side cleaning brushes that clean the front, rear, and side surfaces of the vehicle. In the car washing device, a bearing device that holds the rotating shafts of the pair of left and right side cleaning brushes maintains a constant attitude with respect to a moving direction of a parallelogram link running frame configured with the running frame as one element. It is supported by a link element so as to be swingable through an axis perpendicular to and horizontal to the moving direction of the traveling frame, and is elastically held in a neutral position with the rotating axis of the side cleaning brush in the vertical direction. A support mechanism for a side cleaning brush in a cleaning device.