JPH05170057A - Rotary brush device for car washing machine - Google Patents

Abstract

PURPOSE:To appropriately control the surface pressure of a rotary brush to a vehicle by making the oscillation possible range of the rotary brush, supported at oscillating arms, variable. CONSTITUTION:A vertical pair of oscillating arms 5 are rigidly fixed to a supporting shaft 4 rotatably provided at a gate-type traveling frame 3, and a side face brush 6 is supported between these oscillating arms 5. The side face brush 6 is energized in the direction of an arrow mark A of approaching a vehicle by the weight of a weight 12. The supporting shaft 4 is provided with a movable stopper 13 changeable in its oscillating position into the directions of arrow marks A, B by a cylinder 16. A stopper protrusion 14 provided at the oscillating arm 5 is brought into contact with the movable stopper 13 adjusted in its oscillating position according to the side face shape of the vehicle, so that the oscillating end of the side face brush 6 oscillated in the direction of the arrow mark A by the energizing force of the weight 12 is regulated to enable the control of surface pressure to the vehicle.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary brush device for a car washing machine in which a rotary brush is supported at the tip of a swing arm which swings around a support shaft.

[0002]

2. Description of the Related Art Conventionally, in a rotary brush device in which a rotary brush is provided at the tip of a swing arm, the position of a stopper engaged with the swing arm of the rotary brush is changed according to the size of the vehicle width of the vehicle. It is known that the rotary brush appropriately holds the surface pressure when cleaning the vehicle body (for example, see Japanese Utility Model Publication No. 40-584).

[0003]

By the way, in the above conventional apparatus, since the position of the stopper cannot be automatically changed according to the vehicle width of the vehicle to be washed, it is possible to wash various vehicles having different vehicle widths. It was inconvenient.

The present invention has been made in view of the above circumstances, and an object thereof is to automatically adjust the position of a stopper for appropriately maintaining the surface pressure of a rotating brush against a vehicle body.

[0005]

In order to achieve the above object, the present invention relates to a rotary brush device for a car washing machine, wherein a rotary brush is supported at a tip of a swing arm swinging about a support shaft. A movable stopper that limits the swingable range of the swing arm, a moving unit that moves the position of the movable stopper, a position detection unit that detects the positional relationship between the swing arm and the movable stopper, and this position detection unit. And a control means for controlling the moving means based on the detection of.

[0006]

Embodiments of the present invention will be described below with reference to the drawings.

1 to 6 show an embodiment of the present invention. FIG. 1 is a partial front view of a car washing machine, FIG. 2 is a view taken along line 2-2 of FIG. 1, and FIG. Fig. 3 is a sectional view taken along line 3-3, Fig. 4 is a hydraulic circuit diagram for controlling the drive of the cylinder, Fig. 5 is an explanatory view of the action, and Fig. 6 is a side view of the vehicle.

As shown in FIGS. 1 and 2, the gate-type traveling frame 3 in which the wheels 2 are guided by the guide rail 1 laid on the floor surface reciprocates along the guide rail 1 by a drive source (not shown). To do. Rotatable support shafts 4 are vertically arranged on the left and right sides of the gate type traveling frame 3, and a rotary shaft of the side brush 6 is provided between the tips of a pair of swing arms 5 fixed to both upper and lower ends of each support shaft 4. 7 is supported. The side brush 6 is connected to a brush driving motor 8 provided on the upper swing arm 5 and is rotationally driven to brush and wash the side surface of the vehicle.

One end of a wire 10 is attached to the tip of a weight arm 9 projecting from the intermediate portion of the support shaft 4, and the other end of the wire 10 that hangs down via a guide roller 11 provided on the gate type traveling frame 3. A weight 12 is suspended at the end. Due to the gravity acting on the weight 12, the support shaft 4, the swing arm 5, and the side brush 6 are urged in the direction of arrow A in FIG. 2, that is, the side brush 6 approaches the vehicle.

A stopper arm 13 is provided below the support shaft 4.
₁And cylinder arm 13₂A plane formed by integrally forming and
The intermediate portion of the movable stopper 13 having a V-shape is relatively rotatable.
Currently supported. The upper surface of the lower swing arm 5 is
A stopper 14 and a proximity switch 15 are provided to
Dome 13₁When the stopper abuts against the stopper protrusion 14,
The switch 15 operates. In addition, the cylinder arm 13₂Beyond
Between the end and the gate type traveling frame 3, the position of the movable stopper 13
Cylinder 16 and its rod 16 to change the position ₁Connected
To be done.

As can be seen by referring also to FIG.
A friction plate 17 is fixed to the lower surface of the tip of the cylinder arm 13 ₂ of the movable stopper 13. On the other hand, the lower swing arm 5
A friction rubber 19 which is in sliding contact with the friction plate 17 is fixed to the upper surface of the friction arm 18 which is integral with the friction plate 18. By frictionally contacting the friction plate 17 with the central protruding portion of the friction rubber 19, a predetermined resistance force is applied to the swing of the lower swing arm 5 to prevent unnecessary vibration and bouncing of the side brush 6.

Thus, the side brush 6 has an outer limit position where the side surface of the lower swing arm 5 contacts the fixed outer limit stopper 20 fixed to the gate type traveling frame 3 (chain line position in FIG. 2).
And a position where the stopper projection 14 provided on the swing arm 5 comes into contact with the stopper arm 13 ₁ of the movable stopper 13, the cylinder 16 is extended to drive the movable stopper 13 in the direction of arrow A. The swingable range is expanded toward the inner limit position by rotating the switch. The inner limit position of the side brush 6 (the position indicated by the solid line in FIG. 2) is regulated by the friction arm 18 integral with the swing arm 5 coming into contact with the position-fixed inner limit stopper 21 fixed to the gate type traveling frame 3. (See FIG. 3).

As shown in FIG. 4, the port 16 ₂ on the side opposite to the rod of the cylinder 16 is connected to an air source 23 via a three-way solenoid valve 22, and the port 16 ₃ on the rod side is a two-way solenoid valve. 24, Oil tank 2 that converts air pressure into oil pressure
The air source 23 through the 5- and 3-way solenoid valves 26
Connected to.

The gate type traveling frame 3 is provided with a control device 27, and each solenoid valve connected to a traveling drive source of the gate type traveling frame 3, a brush driving motor 8 for rotating the side brush 6, and a cylinder 16. The operations of 22, 24, 26, etc. are controlled.

The cylinder arm 13 ₂ , the cylinder 16, the three-way solenoid valve 22, the _two- way solenoid valve 24, and 3 are provided.
The directional solenoid valve 26 constitutes the moving means M of the present invention.

FIG. 6 shows a trailer type vehicle V that is washed by the rotating brush device of the present invention. The vehicle V is provided with a cabin V ₁ and a frame F supported on a front portion of a frame F.
A space is provided between the luggage box V ₂ supported on the rear part of the vehicle.

Next, the operation of the embodiment of the present invention having the above-mentioned structure will be described mainly with reference to FIGS. 4 and 5.

[0018] 3 Kataguchi when contracting the solenoid valves 22, 26 and 2 Kataguchi the solenoid valve 24 in the inoperative cylinder 16 movable stopper 13 is swung in the direction of arrow B in FIG. 2, its stopper arm 13 ₁ By pressing the stopper protrusion 14, the swing arm 5 and the side brush 6 swing to the outer limit position (A) shown by the chain line.

When the gate type traveling frame 3 is moved forward from this state and the side brush 6 has reached the side position (B) of the cabin V ₁ of the vehicle V, detection means (not shown) detects
The forward movement of the gate type traveling frame 3 is stopped, the side brush 6 is normally rotated, and the three-way solenoid valves 22 and 26 are operated. As a result, the cylinder 16 extends and the movable stopper 13 swings in the direction of arrow A in FIG. 2, so that the urging force of the weight 12 swings the side brush 6 in the direction of arrow A. Generally, the side brush 6 having a large size and a large inertial weight is apt to cause a delay in the initial motion only by the urging force of the weight 12, but the extension of the cylinder 16 causes the friction plate 17 provided on the cylinder arm 13 ₂ to slide on the friction rubber 19. Since a frictional force is generated, the frictional force urges the lower swing arm 5 via the friction arm 18 supporting the friction rubber 19, whereby the initial movement of the side brush 6 can be smoothly performed. ..

After the side brush 6 reaches the (C) position where it comes into contact with both side surfaces of the cabin V ₁ of the vehicle V, and the inward swing of the side brush 6 is restricted, the movable stopper 13 moves to the cylinder 16 side. The stopper protrusion 14 and the stopper arm 13 that are further swung to the stroke end and are in contact with the end until then
₁ is separated. When the side surface brush 6 contacts the side surface of the vehicle V, the side surface brush 6 is prevented from bouncing due to the frictional force acting between the friction plate 17 and the friction rubber 19, so that the side surface brush 6 can obtain an appropriate surface pressure in a short time. Can be stopped at the desired position.

After the side brush 6 has come into contact with the side face of the vehicle V and a predetermined time has passed and the position of the side brush 6 has stabilized, the three-way solenoid valves 22 and 26 are deactivated and the cylinder is turned off. 16 is contracted. When the stopper arm 13 ₁ of the movable stopper 13 swung by the cylinder 16 comes into contact with the stopper projection 14 and the proximity switch 15 is operated, the two-way solenoid valve 24 is operated to lock the cylinder 16 and the gate type traveling frame. Resume the 3rd trip. As a result, the inward swing of the side brush 6 is restricted by the movable stopper 13, and the side brush 6 moves to the outer limit stopper 20.
It is possible to swing between the outer limit position regulated by and the position regulated by the movable stopper 13 locked according to the side shape of the vehicle V.

When the side brush 6 reaches the gap between the cabin V ₁ and the packing box V ₂ due to the forward movement of the gate type traveling frame 3, the side brush 6 swings toward the inner limit position due to the disappearance of the surface pressure. However, since the swing of the swing arm 5 is regulated by the locked movable stopper 13, it is possible to avoid the inconvenience of the side brush 6 falling into the gap and damaging the vehicle V or the side brush 6. ..

The side brush 6 is located near the rear end of the vehicle V (D).
When the detection means (not shown) detects that the position has been reached,
Two-way solenoid valve 24 when contact switch 15 is not operating
Disable the cylinder 16 and drive the cylinder 16 to contract,
When the switch 15 is activated, activate the 2-way solenoid valve 24
Lock the user 16. On the other hand, the proximity switch 15 is activated
While operating, turn off the 2-way solenoid valve 24 and turn on the 3-way power.
By operating the magnetic valves 22 and 26, the cylinder 16 is
A three-way solenoid valve that is extended and driven after a lapse of a predetermined time
22 and 26 are deactivated to drive the cylinder 16 to contract,
When the proximity switch 15 is activated, activate the 2-way solenoid valve
Lock the cylinder 16. As a result, the vehicle V
If not stopped parallel to the idrail 1,
Jabing V ₁And packing box V₂If the vehicle width of the
Reset the position of the par 13 and adjust the surface pressure of the side brush 6 appropriately.
Can be kept.

When a detection device (not shown) detects that the side brush 6 has moved away from the rear end of the vehicle V and has reached the (E) position, the side brush 6 is rotated in the reverse direction so that the gate type traveling frame 3 is moved backward. .. At this time, since the position of the movable stopper 13 is set so that the side surface brush 6 does not move inward from the appropriate position when going forward, the side surface of the vehicle V is appropriately washed by the side surface brush 6 even when going backward. be able to.

When the side brush 6 returns to the (B) position, the two-way solenoid valve 24 is deactivated and the cylinder 16 is contracted and driven to open the side brush 6 and stop the rotation of the side brush 6. .. When the gate type traveling frame 3 reaches the start position, the traveling is stopped and the cleaning process is completed.

The cylinder 16 and the movable stopper 13
Even when the side surface brush 6 is cleaning the side surface of the vehicle V in the locked state, the frictional force acting between the friction plate 17 and the friction rubber 19 can prevent unnecessary deflection of the side surface brush 6.

Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above embodiments, and various small design changes can be made.

For example, instead of the movable stopper 13 being rocked by the cylinder 16, it can be rocked by a motor. Further, the present invention is not limited to the side brush 6, but can be applied to a swing arm type top brush.

[0029]

As described above, according to the present invention, the position of the movable stopper that limits the swingable range of the rotary brush is moved by detecting the positional relationship between the swing arm and the movable stopper. Not only can the swingable range of the rotating brush be regulated according to the shape of the vehicle to maintain the surface pressure of the rotating brush appropriately, but also damage to the rotating brush and the vehicle due to excessive surface pressure can be reliably prevented. be able to.

[Brief description of drawings]

[Figure 1] Partial front view of car wash machine

FIG. 2 is a view taken along the line 2-2 of FIG.

3 is a sectional view taken along line 3-3 of FIG.

FIG. 4 is a hydraulic circuit diagram for controlling the cylinder drive.

FIG. 5 is an explanatory diagram of operation

FIG. 6 is a side view of the vehicle.

[Explanation of symbols]

 4 Support Shaft 5 Swing Arm 6 Side Brush (Rotating Brush) 13 Movable Stopper 15 Proximity Switch (Position Detecting Means) 27 Control Device (Control Means) M Moving Means

Claims (1)

[Claims] 1. A rotary brush device for a car washing machine, wherein a rotary brush (6) is supported at a tip of a swing arm (5) swinging around a support shaft (4). The movable stopper (13) for limiting the swingable range, the moving means (M) for moving the position of the movable stopper (13), and the positional relationship between the swing arm (5) and the movable stopper (13) are described. Position detecting means (15) for detecting, and control means (2) for controlling the moving means (M) based on the detection of the position detecting means (15).
7) A rotating brush device for a car wash, comprising: