JPH0659857B2 - Car window masking device - Google Patents

Description

The present invention relates to a window masking device for an automobile, which prevents the wax from adhering to the window surface when the wax coating is applied to the surface of the automobile body.

[Conventional technology]

For automobiles that have been assembled through the automobile manufacturing process,
Wax coating is applied to the body surface in order to prevent rusting and deterioration of the painted surface during waiting such as shipping.

At this time, in order to prevent the wax applied by spraying on the body surface of the automobile from adhering to the window surface, conventionally, a masking sheet is manually attached to each window and peeled off after wax coating. I was doing.

Therefore, there is a problem that the work of attaching and detaching the masking sheet is very troublesome and requires a lot of labor, and at the same time, the transportation of the automobile must be temporarily stopped when performing the masking work.

In view of such circumstances, for example, Japanese Patent Publication No. 61-5542.
As shown in Japanese Patent Laid-Open Publication No. 9-93, there is proposed a window masking device capable of automatically masking without stopping the transportation of a vehicle.

As shown in FIG. 4, a front window masking device 60 and a rear window masking device 61 are separately installed on the side and above the transportation line of the automobile C, respectively. Masking sheets 64 and 65 are attached to the tips of support arms 62 and 63 that expand and contract along the C transport line. Then, in a state where the support arm 62 of the front window masking device 60 is contracted, the tip end side of the support arm 62 is bent sideways toward the automobile C conveyed at a predetermined speed so that the tip end of the support arm 62 is reached. The attached masking sheet 64 is swung so as to press against the front window FW of the automobile C to start masking of the front window FW (fourth).
(See Figure (a)). At the same time, the support arm 62 is extended in accordance with the transportation speed of the automobile C, and the masking sheet 64 is kept in close contact with the front window FW (see FIG. 4 (b)).

Next, the support arm 63 of the rear window masking device 61 is set in an extended state (see FIG. 4 (b)), the tip end side thereof is bent downward toward the automobile C, and attached to the tip of the support arm 63. The masking sheet 65 is swung so as to press against the rear window RW of the automobile C to start masking of the rear window RW (see FIG. 4 (c)). At the same time, the support arm 63 is contracted in accordance with the transportation speed of the automobile C, and the masking sheet 65 is kept in close contact with the rear window RW.

In this manner, the front window FW and the rear window RW are masked and conveyed, and the body surface of the automobile C is sprayed with wax sprayed from the top gun 66 and the side gun 67 from the front end side to the rear end side. Apply.

Then, when the wax coating of the first half portion of the automobile C is completed, the supporting arms 62 that are bent sideways are formed.
The tip side of the arm returns to a straight state, and the supporting arm 6
The masking sheet 64 attached to the tip of 2 is swung so as to separate from the front window FW,
First, the masking of the front window FW is released (see FIG. 4 (d)). At the same time, the support arm 6
2 starts contracting and is returned to the masking start position shown in FIG. 4 (a) (see FIG. 4 (e)).

Next, when the wax coating of the automobile C is completely completed, the tip end side of the support arm 63 bent downward returns to a straight state, and the masking sheet 65 attached to the tip end of the support arm 63 is removed from the rear window RW. The rear window RW is swung so as to be released, and the masking of the rear window RW is released (Figs. 4 (e) and (f)).
reference).

[Problems to be solved by the invention]

However, the conventional window masking device shown in FIG. 4 has a front window FW and a rear window R.
Each masking device 60 and 61 for masking W
Since they are installed separately and independently along the transportation line of the automobile C, there is a problem that the installation space becomes large. Particularly, in the window masking device, a masking device for masking the left and right side windows must be additionally provided in addition to the masking devices 60 and 61, so that the entire installation space must be further increased. I don't get it.

Further, the masking sheets 64 and 65 are pressed against the front window FW and the rear window RW so as to sandwich the automobile C conveyed at a predetermined speed from the front and rear, and the pressed masking sheets 64 and 65 are respectively pressed against the front window FW and the rear window FW. In order to keep the window RW in close contact, both the support arm 62 of the front window masking device 60 and the support arm 63 of the rear window masking device 61 are moved at the same speed as the transportation speed of the automobile C. There is a problem that the control system becomes complicated because the individual control is required to extend or contract.

Further, the support arms 62 and 63 are adapted to extend or contract in the horizontal direction over a long distance from the masking start position to the masking release position by following the movement of the conveyed automobile C. 62
As they extend, they tend to bend downward under the load of themselves and the masking sheets 64 and 65 attached to their tips, and then return to the horizontal state as they contract. Therefore, the masking sheets 64 and 6
There is also a problem that it is difficult to press 5 against the front window FW and the rear window RW with high accuracy.

In addition, there is a drawback that the front window and the rear window cannot be surely masked when the vehicle length changes due to the difference in the type of the conveyed vehicle.

[Means for solving problems]

Therefore, the present invention is an automobile window masking device for masking an automobile window in which wax is applied to the body surface while being conveyed at a predetermined speed,
A movable frame that is supported by a fixed frame and that travels back and forth between a masking start position and a masking release position is provided above the transportation line of the automobile, and the front side of the movable frame has a movable frame of the automobile being transported. A front window masking plate that is pressed against the front window is attached, and between the left side and the right side of the movable frame, a movable bar urged by a tension spring so as to be movable in the rear direction is installed in parallel with the front side. Then, a rear window masking plate that is pressed against the rear window of the automobile is attached to the movable bar, and the left and right sides of the movable frame are engaged with the both ends of the movable bar at desired positions. A locking device is provided to fix the bar to the movable frame at the masking position of the rear window. When the frame returns to the masking start position, the movable bar moved to the rear side of the movable frame by releasing the locking device is moved by a predetermined distance in the front side direction of the movable frame against the biasing force of the tension spring. It is characterized in that a stopper for pressing back is attached.

[Action]

According to the present invention, the masking plate for the front window and the masking plate for the rear window move integrally with the traveling of the movable frame. Therefore, by simply traveling the movable frame at the transportation speed of the automobile, Both masking plates can be kept in close contact with the front and rear windows of the vehicle, respectively. Therefore, unlike the conventional example, the complicated control of individually moving each masking plate in accordance with the transportation speed of the automobile is unnecessary.

Further, each of the masking plates moves while following the transportation of the automobile while being attached to the movable frame, so that the masking plates can be accurately pressed against the front window and the rear window over a long distance from the masking start position to the masking release position. Can be set.

In addition, the rear window masking plate is attached to a movable bar that is movably installed in the front-back direction of the movable frame, and the distance between the rear window masking plate and the front window masking plate can be freely adjusted. Both the front and rear windows can be masked reliably in response to changes in vehicle length.

〔Example〕

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings.

1 to 3 are a schematic plan view, a side view and a front view showing an example of a window masking device according to the present invention.

In this example, the gate-shaped fixed frame 1 is arranged so as to straddle over the transportation line of the automobile C which is transported in the direction of the arrow X at a predetermined speed, and is horizontally fixed inside the left and right sides of the fixed frame 1. A movable frame 3 which is supported by a pair of rails 2 and 2 provided and which travels back and forth between a masking start position and a masking release position is provided above the transportation line of the automobile C.

A front window masking plate 4 and a rear window masking plate 5 which are swung so as to sandwich the vehicle C being conveyed from the front and the rear of the movable frame 3 and are pressed against the front window FW and the rear window RW, respectively.
For example, in the case of a sedan type car C, the car being transported is swayed so as to be sandwiched between the side windows SW ₁ and SW _2, and the side window masking plates 6 a are pressed against the side windows SW ₁ and SW ₂ , respectively. , 6b are attached.

Each masking plate 4, 5, 6a and 6b is a rectangular bar along one side edge of the vinyl chloride plate 7 formed according to the shape and size of each window FW, RW, SW ₁ and SW _{2 to be} masked. It has a structure in which a flexible urethane rubber 8 is bonded endlessly.

The movable frame 3 is formed of a channel steel into a rectangular frame, and a pair of links 10 and 10 are fixed in parallel at a predetermined interval to a rotary shaft 9 that is installed along the lower side of the front side 3a thereof. , 10, the front window masking plate 4 is attached via a shaft 11 installed between the tips of the front windows. An air cylinder 13 connected to one end of the rotary shaft 9 via a link 12
The piston rod 14 is expanded and contracted to swing the masking plate 4 up and down.

Further, the left side 3b and the right side 3c of the movable frame 3 are provided with a plurality of rollers 15, 15 ... Which are respectively engaged with the left and right rails 2, 2 of the fixed frame 1, and brackets 16a, 16b for mounting side windows. Are projected at a constant interval, the parallel links 18a and 18b and the link 18 are fixedly installed at a predetermined interval on the rotary shaft 17 that is installed between the brackets 16a and 16b, and the shaft 19 that is installed between the ends of these links is interposed. The side window masking plates 6a and 6b are attached. The piston rod 21 of the air cylinder 20 connected to the rotary shaft 17 via a link (not shown) is expanded and contracted to swing the masking plates 6a and 6b left and right.

In order to mask not only a sedan type car but also a side window of a van type car that has one more side window than the sedan type, the bracket 1
Another bracket 22 is further projected behind the 6b, and the link 24 and the parallel links 24a, 24b are attached to the rotary shaft 23 installed between the brackets 16b and 22.
Are fixed at predetermined intervals, and a masking plate 26 for a side window on the rear end side of a van-type automobile is attached via a shaft 25 provided between the ends of these links. The piston rod 28 of the air cylinder 27 connected to the rotary shaft 23 via a link (not shown) is expanded and contracted to swing the masking plate 26 left and right.

Further, between the left side 3b and the right side 3c of the movable frame 3,
The left side 3b passes through a plurality of rollers 29, 29 ...
And the movable bar 30 engaged with the right side 3c is the front side 3a.
It is installed in parallel with.

In the movable bar 30, a pair of links 32, 32 are fixed in parallel to a rotary shaft 31 installed along the lower side of the movable bar 30,
A shaft 33 installed between the ends of the links 32, 32.
The rear window masking plate 5 is attached via the. An air cylinder 34 attached to one end of the movable bar 30 is attached to one end of the rotary shaft 31.
Piston rod 35 of is connected via a link 36,
As the piston rod 35 expands and contracts, the masking plate 5 swings up and down.

Further, the movable bar 30 is connected to a pair of tension springs 37, 37 attached to the rear side 3d of the movable frame 3 at regular intervals, and is movable in a direction away from the front side 3a of the movable frame 3. While being urged, the movable frame 3 is normally stopped at the masking start position as shown in FIG. 1 and is stopped by a pair of stoppers 38, 38 projecting from the fixed frame 1 at regular intervals. The movement of the movable frame 3 in the rear side 3d direction is prevented.

Further, the left side 3b and the right side 3c of the movable frame 3 are provided with lock devices 39, 39 which engage with both ends of the movable bar 30 at desired positions, and the lock devices 39 are attached to the movable frame 3. The movable bar 30 is operated by the link mechanism 41 driven by the air cylinder 40.
Is connected and fixed to the movable frame 3 at a desired position.

Next, on the rear side 3d of the movable frame 3, the rotary shaft 42 is pivotally supported along the lower side thereof.
Wheels 43, 43 supported by the fixed frame 1 and traveling along the transportation line of the automobile C are attached to both ends of the vehicle.

In addition, the movable frame 3 is provided on one end side of the rotary shaft 42.
A driven sprocket 47 connected to a drive sprocket 45 fixed to the rotation shaft of the motor 44 attached to the above is connected via a chain 46.

The above is an example of the configuration of the window masking device according to the present invention. Next, its operation and effect will be described.

When masking is not performed, the movable frame 3 stops at the masking start position and stands by as shown in FIG.

When the automobile C continuously conveyed in the direction of the arrow X reaches the masking start position, first, the air cylinder 13 is activated, the piston rod 14 of the air cylinder 13 is extended, and the rotary shaft 9 is rotated.

As a result, the links 10, 1 fixed to the rotary shaft 9
The masking plate 4 attached to the front end of 0 through the shaft 11 swings downward and is pressed against the front window FW of the automobile C.
Is masked.

At the same time, the air cylinders 20 attached to the left side 3b and the right side 3c of the movable frame 3 are actuated, and the piston rods 21 thereof are extended and the rotary shaft 1 is rotated.
7 rotates.

As a result, the parallel link 1 fixed to the rotary shaft 17
8a, 18b and the masking plates 6a, 6b attached to the tips of the links 18 via the shaft 19 are the automobile C.
Swings toward the side of the side window _SW 1, SW ₂ devoted pressed against the side window _SW 1, SW ₂ of the automobile C is also masked.

Further, if the automobile C is a sedan type, the air cylinder 40 is immediately activated in the state shown in FIG.
The link mechanism 41 for operating 9 drives to move the movable bar 3
Both ends of 0 are connected and fixed to the left side 3b and the right side 3c of the movable frame 3, respectively, and at the same time, the air cylinder 34 is actuated to extend the piston rod 35 of the movable frame 3 and the rotary shaft 3
1 rotates.

As a result, the link 32 fixed to the rotary shaft 31,
The masking plate 5 attached to the tip of 32 via the shaft 33 swings downward and is pressed against the rear window RW of the automobile C, and the rear window RW is masked.

Thus, the front window masking plate 4 and the rear window masking plate 5 are in a state of holding the car C being transported so as to sandwich the car C from the front and rear, and the left and right side window masking plates 6a and 6b are the car C.
Is held so that it is sandwiched from the left and right.

Therefore, the movable frame 3 is pulled by the conveyed automobile C and automatically starts traveling in the arrow X direction without requiring any driving force.

Then, a wax sprayed from a top gun or a side gun (neither of which is shown) is applied to the body surface of the automobile C conveyed in such a state to perform wax coating.

At this time, the windows FW, RW and S of the car C
Each masking plate 4, which masks W ₁ and SW ₂ .
Since 5 and 6a and 6b move integrally with the traveling of the movable frame 3 towed by the automobile C, each window FW, RW and S can be operated without any complicated control.
While being kept in close contact with W ₁ and SW ₂ at all times, they are pressed against each other with a high accuracy over a long distance from the masking start position to the masking release position.

In this way, when the wax coating is completed and the movable frame 3 reaches the masking release position, the piston rods 14 and 3 of the air cylinders 13 and 34, respectively.
5 contracts, the masking plates 4 and 5 swing upward and separate from the front window FW and the rear window RW, respectively, and at the same time, the piston rods 21 of the air cylinders 20 and 20 contract and the left and right masking plates 6a. ，
6b swings to the left and right, respectively, and the side window S
It leaves from W ₁ and SW ₂ .

Then, the motor 44 attached to the movable frame 3 operates, the wheels 43, 43 attached to both ends of the rotary shaft 42 rotate, and the entire movable frame 3 travels toward the masking start position. At this time, the locking devices 39, 39 are released, and the movable bar 30 is free to move in the urging direction of the tension springs 37, 37, and moves in the rear side 3d direction of the movable frame 3 to move the rear side. It is struck by a pair of stoppers 50, 50 for preventing falling, which are provided to project from 3d.

When the movable frame 3 returns to the masking start position shown in FIG. 1, the movable bar 30 is stopped by the stoppers 38, 38 attached to the fixed frame 1 and resists the urging force of the tension springs 37, 37. Then, the driving force of the motor 44 is stopped and the vehicle waits until the next automobile arrives.

Next, instead of the sedan-type car C shown by the one-dot chain line in FIG. 2, a van-type car C with another side window SW ₃ additionally installed at the rear end side as shown by the two-dot chain line in the same figure. When 'is conveyed, first, by the same operation as in the case of the car C described above, the masking plates 4 and 6a, 6b are pressed to the front window FW and the left and right side windows SW ₁ , SW ₂ of the car C', respectively. Simultaneously with the application, the piston rod 28 of the air cylinder 27 extends to rotate the rotary shaft 23, and the parallel links 24a, 24b fixed to the rotary shaft 23 and the tips of the links 24 are attached via the shaft 25. Masking plate 2
6 is pressed against the left and right side windows SW ₃ on the rear end side of the automobile C ′, and the side windows SW ₃ are masked.

Since the front and left and right sides of the automobile C'are held by the front window masking plate 4 and the left and right side window masking plates 6a, 6b and 26, respectively, the automobile C'is transported. As a result, the movable frame 3 is integrally towed to automatically start traveling in the arrow X direction.

At this time, the movable bar 30 installed on the movable frame 3 is
Since the tension force of the tension springs 37, 37 urges the movable frame 3 toward the rear side 3d of the movable frame 3, the stopper 38, 38 of the fixed frame 1 maintains the state in which it is stopped.
Therefore, the rear window masking plate 5 attached to the movable bar 30 relatively moves away from the front window masking plate 4 attached to the front side 3a of the movable frame 3, and the van-type automobile C ′
Wait until the rear window RW of arrives.

Then, when the rear window RW arrives, the air cylinder 40 operates and each locking device 39 operates, and the movable bar 3
Both end sides of 0 are fixed to the left side 3b and the right side 3c of the movable frame 3, respectively, and at the same time, the air cylinder 34 is actuated and the rear window masking plate 5 is pressed against the rear window RW of the automobile C'and the rear window concerned. RW
Is masked.

As described above, if the rear window masking plate 5 is attached to the movable bar 30 so that the distance between the rear window masking plate 5 and the front window masking plate 4 can be freely adjusted, it is possible to quickly respond to a change in vehicle length due to a difference in vehicle type. The window and the rear window can be reliably masked.

Further, the front window masking plate 4 and the rear window masking plate 5 are both attached to the movable frame 3 so as to move integrally, and the movable frame 3 has a side window masking plate 6a, Since 6b and the like are also attached, the installation space for the entire window masking device can be very small.

In addition, in the above-mentioned embodiment, the case where the conveyed automobile C or C ′ pulls the movable frame 3 to travel from the masking start position to the masking start position has been described, but the invention is not limited to this. The motor 44 may be self-propelled according to the conveyance speed of the vehicle C or C '.

〔The invention's effect〕

According to the present invention, the front window masking plate and the rear window masking plate need not be complicatedly controlled from the masking start position to the masking release position for both the front window and the rear window of the automobile. It can be kept in close contact with high precision and the distance between the masking plate for the front window and the masking plate for the rear window can be freely adjusted according to the length of the car, so even in cars of different models the front window And, it has a very excellent effect that the rear window can be surely masked.

[Brief description of drawings]

1 to 3 are a plan view, a side view and a front view showing an example of a window masking device according to the present invention with a part thereof omitted, and FIGS. 4 (a) to 4 (f) are conventional window masking devices and the same. It is explanatory drawing which shows operation. Explanation of symbols C ... Sedan type car, C '... Van type car, F
W: Front window, RW: Rear window,
SW ₁ , SW ₂ , SW ₃ ... Side window, 1 ...
Fixed frame, 2 ... Rail, 3 ... Movable frame, 4
...... Floor window masking plate, 5 ...... Rear window masking plate, 6a, 6b ...... Side window masking plate, 26 ...... Side window masking plate, 29 ...... Roller, 30 ...... Movable bar, 39 ... … Locking device, 43 …… Wheels, 44 …… Motor.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Takashi Yamanaka 2-4-1 Terauchi, Toyonaka-shi, Osaka Trinity Industry Co., Ltd. (56) References 62-126275 (JP, U)

Claims (1)

[Claims] 1. An automobile window masking device for masking an automobile window in which wax is applied to a body surface while being conveyed at a predetermined speed, and is supported by a fixed frame (1) along an upper portion of an automobile conveying line. Is provided with a movable frame (3) that reciprocates between the masking start position and the masking release position, and the moving vehicle (C, C ') is on the front side (3a) side of the movable frame (3). The front window masking plate (4), which is pressed against the front window (FW) of the movable frame (3), is attached, and the tension spring (37) is provided between the left side (3b) and the right side (3c) of the movable frame (3) to secure the rear side. A movable bar (30) urged to move in the (3d) direction is installed in parallel with the front side (3a), and the movable bar (30) has an automobile (C,
A masking plate (5) for the rear window, which is pressed against the rear window (RW) of C '), is attached, and both ends of the movable bar (30) are attached to the left side (3b) and the right side (3c) of the movable frame (3). Lock device (3) that engages the movable bar (30) at a desired position with respect to the side and fixes the movable bar (30) to the movable frame (3) at any masking position of the rear window (RW).
9) is provided, and when the movable frame (3) returns to the masking start position, the locking device (39) is released and the rear side (3d) of the movable frame (3) is provided on the fixed frame (1). Move the movable bar (30) moved to the side to the tension spring (3
The front side (3a) of the movable frame (3) against the urging force of 7)
A window masking device for an automobile, which is provided with a stopper (38) for pressing back a predetermined distance in a predetermined direction.