JPH07100146B2 - Sealant coating device for panel edge - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention provides a rust preventive, a sealant and a protector for an inner curved edge portion forming a wheel opening line of a panel in a fender portion of an automobile body. The present invention relates to a sealing material applying device for a panel edge portion that can be used as a device for applying a sealing material.

[Conventional technology and its problems]

The inner curved edge part that forms the wheel opening line of the panel in the fender part of the automobile body originally has a tendency that the coating film becomes thinner than other parts, so that due to collision of flying stones etc. during running The coating film is relatively easier to peel off than other parts, and the adhesion of salt of the antifreezing agent, etc., also causes rusting.

Therefore, the inner curved edge portion forming the above-mentioned wheel opening line is specially covered and protected by a sealing material, for example, a thermosetting rubber-based paste sealing material that can be simultaneously cured when the electrodeposition coating film is cured by heating. It is possible to do it.

As an application device for such a sealing material, a full-scale shokai 61-
There is one described in 167974. This conventional coating device
A nozzle provided with a forked portion at the tip is attached to the coating gun, and the coating gun is moved with the forked portion straddling the panel edge portion. Further, Japanese Utility Model Laid-Open No. 60-31371 and Japanese Patent Laid-Open No. 58-67376 describe a nozzle used for applying a sealing material or a hot melt resin to a general edge portion.

However, since the panel edge portion as described above is bent inward (toward the wheel house), it is difficult to move the nozzle at a constant speed while keeping the nozzle in the correct posture with respect to the panel edge portion. In addition, since the panel edge part has a bulge part in which a hole for fixing the decorative molding material is processed, the inward protruding width may not be constant. The edges tend to wavy in the length direction. For these reasons, it is not possible to apply the sealing material uniformly and efficiently and reliably to the panel edge portion with the above-described conventional coating device or nozzle alone.

[Means for solving problems]

In view of the above problems, the present invention provides a coating device suitable for coating a sealing material on a special panel edge portion as described above, and a technical means therefor is:
The operating body is provided with a sliding guide surface having a substantially L-shaped cross section that is fitted and abutted from the outside on the projected corner portion extending from the outer surface of the panel to the bottom surface of the inner curved edge portion. The nozzle is provided so as to be reciprocally movable, and the nozzle is provided with a recessed portion that is fitted into the inner curved edge portion from the inside with a gap between the nozzle and both side surfaces of the inner curved edge portion. A U-shaped continuous slit-shaped discharge port is provided on the inner surface of the recessed portion, and a portion of one side of the discharge port that contacts the edge of the edge portion is provided in the nozzle, and the nozzle is provided in the edge portion. A spring for urging the recessed portion to fit is provided along with a pipe for supplying a sealing material to the nozzle.

[Work]

With the nozzle retracted against the urging force of the spring, the sliding guide surface of the operating body is fitted and abutted from the outside to the protruding corner portion of the inner curved edge of the panel, and the nozzle is retracted. Is moved forward by the urging force of the spring, so that the nozzle concave portion is fitted into the inner curved edge portion from the inside and is brought into contact with the end edge thereof. In this state, the sealing material is supplied to the nozzle through the pipe, and the operating body is moved manually or along the inwardly curved edge portion by the manipulator (industrial robot). The moving direction at this time is
The contact portion between the nozzle and the end of the inwardly curved edge portion is in a direction ahead of the sealing material discharge port inside the recessed portion.

As a result, the sealing material discharged from the U-shaped continuous slit-shaped discharge port into the nozzle recessed portion relatively moves inside the nozzle recessed portion along with the movement of the operating body. The coating is applied so that the edge and the edge are wrapped in a certain thickness. .

At this time, by moving the operating body along the edge while pressing the operating body in the direction of the projected corner so that the sliding guide surface always comes into contact with the outside of the projected corner of the panel, the nozzle concave portion with respect to the inward curved edge can be formed. The position is fixed, and a predetermined gap is secured between the opposing both sides of the nozzle recess and the inner curved edge, and the sealing material is applied to both sides of the inner curved edge with a certain thickness. Can be done.

Further, the nozzle is urged in the direction in which it abuts against the inwardly curved edge portion against the urging force of the spring and can move backward against the urging force. Even if there is a large bulge, the nozzle will move along the edge of the inner curving edge including the bulge, and the bulge of the inner curving edge will also move. The sealing material can be applied well.

Furthermore, since a gap is maintained between the opposite side surfaces of the nozzle recessed portion and both side surfaces of the inwardly curved edge portion fitted to this,
Even if the edge portion is wavy in the lengthwise direction, the nozzle recessed portion and the edge portion can be smoothly moved relative to each other smoothly and the desired sealing material coating action can be performed.

〔Example〕

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

In FIGS. 1 to 3, reference numeral 1 denotes an operating body having a substantially right-angled triangular side surface, which is made of a plastic material that slides well on a metal plate, and a grip portion 2 is formed along a hypotenuse thereof. The extending portion 3 is integrally provided so as to project obliquely downward from the middle position of the vertical side. The extension part 3 is provided below the extension part 3.
A guide rail 4 is attached along the length direction of the movable rail 5, and a movable base 5 is supported on the guide rail 4 via a slide bearing so as to be slidable only. A sealing material coating nozzle 6 is arranged adjacent to one side of the extending portion 3 and is connected to the movable table 5 via a bracket 7.
Reference numeral 8 denotes a guide rod parallel to the guide rail 4, one end of which is fixed to the lower end of the vertical side of the operating body 1 in a state of penetrating the free end of the plate member 9 attached to the movable table 5 so as to be relatively movable, A washer 8a and a plate member 9 attached to the free end of the guide rod 8
Between the guide rod 8 and the compression coil spring 10
Is loosely fitted. Reference numeral 11 denotes a slide guide surface having a substantially L-shaped cross section, which is formed across the upper side of the base of the extending portion 3 and the vertical side of the operating body 1.

As shown in FIGS. 4 to 7, the nozzle 6 has a branch pipe portion 6a extending upward in a direction facing the slide guide surface 11.
Are continuously provided, and a recessed portion 12 is formed between the branch pipe portion 6a and the nozzle body tip pipe portion 6b. The U-shaped inner surface of the recessed portion 12 is provided with slit-shaped sealing material discharge ports 13a to 13c continuous in a U shape.

Among the discharge ports 13a to 13c, the tube wall portions 14a and 14b on both sides forming the discharge port 13b located at the deep end of the recessed portion 12 described above,
As shown in FIG. 6, the moving direction of the operating body 1 (direction of arrow X)
A step d is provided so that the side tube wall portion 14a projects. 1
Reference numeral 6 denotes a scraper, which is made of a rubber plate or the like having an appropriate hardness, and is provided with a contact plate 17 on the side opposite to the operation body moving direction (arrow X direction) side of the nozzle body tip tube portion 6b. It is attached.

As shown in FIGS. 1 to 3, a relay metal fitting 20 for connecting a main flexible tube 18 and a sub flexible tube 19 for supplying a sealing material is provided at an upper corner of the grip portion 2 of the operating body 1. It is fixed, and the free end of the sub flexible tube 19 is communicatively connected to the base portion of the nozzle 6 described above. Reference numeral 21 denotes a push button switch for controlling on / off of the pump for pumping the sealing material, which is arranged at a position where it can be operated with a fingertip while holding the grip portion 2 of the operating body 1. In the illustrated example, the push button switch 21 is provided at a position where it can be operated by the index finger, but it can be arranged at a position where it can be operated by the thumb.

As shown in FIG. 8, a main flexible tube 18 for supplying a sealing material is provided.
Is connected to the discharge port of a pump 24 that pumps the sealing material 23 in the tank 22, and the push button switch 21 is an electric power for on / off control of the pump 24 via wiring arranged along the main flexible tube 18. Although it is connected to the circuit, the main flexible tube 18 becomes long and heavy, so that the portion of the main flexible tube 18 near the operation body 1 (or the operation body 1) is suspended by the suspension rope 25a of the balancer 25 as shown in the figure. Can be hung.

As shown in FIG. 9, the wheel opening line 27 of the panel in the fender portion 26 of the automobile body has a fourth
As shown in FIG. 5 and FIG. 5, the outer panel 28 and the inner panel 29
Is formed by an inwardly curved edge portion 30 in which and are overlapped and joined. Then, the sliding guide surface 11 of the operating body 1 is the outer panel.
The angle is determined so as to be fitted and abutted from the outside to the projected corner portion 31 extending from the outer surface 28a of 28 (the surface of the fender portion 26) to the bottom surface 30a of the inwardly curved edge portion 30.

In this case, it is desirable to form the sliding guide surface 11 at an angle (for example, about 99 degrees) slightly wider than the angle between the outer surface 28a of the outer panel 28 and the bottom surface 30a of the inner curved edge portion 30. Further, the lower side surface 11a of the sliding guide surface 11 can be moved so that the operating body 1 can be smoothly moved along the inwardly curved edge portion 30 while keeping the sliding guide surface 11 in contact with the projecting corner portion 31.
(The surface that makes sliding contact with the bottom surface 30a of the inwardly curved edge portion)
As shown in FIGS. 7 and 7, it is desirable to form a projecting curved surface that is curved with a radius of curvature slightly smaller than the radius of curvature of the wheel opening line 27.

The automobile body to be coated with the sealing material is the 8th
As shown in the figure, it is suspended on the conveyor line so that the wheel opening line 27 is located near the height of the operator's head. The operator holds the grip portion 2 of the operating body 1 and moves the nozzle 6 backward together with the movable table 5 against the urging force of the spring 10 to widen the distance between the sliding guide surface 11 and the nozzle 6. Then, the sliding guide surface 11 is fitted and brought into contact with the projected corner portion 31 at one end (left end) of the wheel opening line 27 from the outside.

Then, the nozzle 6 is moved forward together with the movable table 5 by the urging force of the spring 10, and the recessed portion 12 at the tip thereof is fitted into the inner curved edge portion 30 from the inside as shown in FIGS. 4 and 8.

At this time, the inwardly curved edge portion 30 is located substantially in the center between the upper and lower facing surfaces of the nozzle recessed portion 12, and the nozzle recessed portion
The tube wall portion 14a on the side projecting at the rear end of 12 abuts on the inner edge of the inwardly curved edge portion 30 by the biasing force of the spring 10.
In this state, the push button switch 21 is operated to operate the pump 24 so that the sealing material 23 in the tank 22 passes through the main flexible tube 18, the relay fitting 20, and the sub flexible tube 19 and the nozzle 6 The sealing material 23 is pumped into the nozzle
It will flow out into the recessed part 12 through the slit-shaped discharge ports 13a to 13c that are continuous on the inner periphery of 12.

At this time, the discharge ports 13a, 13b, 13c can be determined from the relationship of the sealing material outflow path to the discharge ports 13a to 13c in the nozzle 6.
Since the discharge amount of the sealing material tends to increase in the order of, the slit widths of the discharge ports 13a to 13c are configured to become narrower in the order of the discharge ports 13a, 13b, 13c as shown in FIGS. 6 and 7. Then, it is preferable that the discharge amounts of the sealing material from the respective discharge ports 13a to 13c be substantially equal.

While the sealing material 23 is being discharged into the recessed portion 12 of the nozzle 6 as described above, the operating body 1 is manually moved by the operator along the inner curved edge portion 30 in the arrow X direction (rightward direction) in FIG. ) To. At this time, the sliding guide surface 11 of the operating body 1 is exposed
The arrow Y shown in FIG. 4 and FIG.
By pushing the operating body 1 in a desired direction and operating it slightly,
The positional relationship between the inwardly curved edge portion 30 and the nozzle recessed portion 12 that fits the edge portion 30 can be maintained as expected.

Thus, as shown in FIG. 5, the gap between the inner surface of the nozzle concave portion 12 and the inner curved edge portion 30, and the step between the pipe wall portions 14a and 14b at the inner end of the nozzle concave portion 12 are formed. Due to the presence of d, the sealing material 23 discharged into the nozzle recessed portion 12 should be applied so as to wrap the inner curved edge portion 30 with the required thickness from the three sides of the upper and lower sides and the edge thereof as the operation body 1 moves. become. Further, the sealing material 23 applied to the bottom surface 30a of the inwardly curved edge portion 30 has its end edges evened out by the scraper 16, so that the bottom surface 30 of the inwardly curved edge portion 30 is formed.
An unsightly step does not occur between a and the applied sealing material 23.

In addition, as shown by the phantom line in FIG.
Even if there is a bulge portion 30b in 30, the nozzle 6 can move backward together with the movable table 5 against the biasing force of the spring 10.
The nozzle 6, which is in contact with the end edge of the inwardly curved edge portion 30 via the pipe wall portion 14a, has a bulge portion 30 while moving forward and backward.
By moving along the edge of b, the sealing material 23 can also be applied as expected at this bulge 30b.

In order to allow the nozzle 6 to move smoothly along the edge of the inner curved edge portion 30 including the bulge portion 30b as described above, as shown in FIG. It is desirable that the outer surface on the operation body moving direction side (the outer surface of the tube wall portion 14a) is formed of a curved surface so that the nozzle 6 is not caught by the bulge portion 30b or the like.

The presence of the scraper 16 makes it possible to beautifully finish the edge of the sealing material 23 whose inner surface is applied to the bottom surface 30a of the reed edge portion 30, but on the other hand, this scraper
The sealing material 23 scraped off by 16 may drip from the tip of the nozzle body tip tube portion 6b.

This can be prevented by suppressing the amount of the sealing material 23 discharged from the discharge port 13c of the nozzle body tip tube portion 6b. However, as shown by phantom lines in FIGS. 5 and 6, the nozzle body tip tube portion is shown. Providing the cover plate 32 that shields the gap between the tip of the 6b and the bottom surface 30a of the inwardly curved edge portion 30 is effective in eliminating the above-mentioned inconvenience.
The cover plate 32 can be formed integrally with the scraper 16.

Further, in the embodiment, the contact portion between the nozzle 6 and the edge of the edge portion 30 is constituted by the pipe wall portion 14a located on one side of the discharge port 13b, but by another member attached to the side portion of the nozzle 6. It is also possible to configure the contact portion as described above.

EFFECTS OF THE INVENTION According to the present invention, the inner curved edge portion of the panel forming the wheel opening line in the fender portion of the automobile body, that is, the inner portion is bent toward the inside of the wheel house and is partially expanded. Sealing material for rust prevention, sealing, and protection can be applied easily, easily, and efficiently to a special panel edge part that has a dent and has a tendency to wavy in the length direction, which is in extremely bad conditions. Of. Moreover, since the sealing material can be coated and coated to a substantially constant thickness so as to completely wrap both side surfaces and the edge of the inward curved edge portion, extremely good rust prevention, sealing and protection effects can be obtained.

[Brief description of drawings]

The drawings show an embodiment of the present invention. Fig. 1 is a side view of a coating apparatus, Fig. 2 is a plan view of the coating apparatus, Fig. 3 is a rear view of the coating apparatus, and Figs. 6 is a vertical sectional side view of the main part, FIG. 7 is a vertical sectional front view of the main part, FIG. 8 is a schematic side view showing how to use the coating apparatus, and FIG. It is a side view explaining a wheel opening line in a fender part of a car body. 1 ... Operating body, 2 ... Grip, 5 ... Movable platform, 6 ... Nozzle, 10 ... Spring, 11 ... Sliding guide surface, 12 ... Nozzle recessed portion, 13a to 13c ... Discharge port , 16 …… scraper, 18 …… main flexible tube (piping), 19 …… sub flexible tube (piping), 23 …… sealing material, 27 …… wheel opening line, 28 …… outer panel, 29 …… Inner panel, 30 …… Inward curved edge, 31 …… Outer corner.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Go Nagata 7-1 Akita-cho, Takatsuki-shi, Osaka Sunstar Giken Co., Ltd. (72) Haruji Shibata 1-cho, Toyota-shi, Aichi Toyota Motor Co., Ltd. Within

Claims (1)

[Claims] 1. An operating body is provided with a sliding guide surface having a substantially L-shaped cross section, which is fitted and abutted from the outside to an outer corner portion extending from the outer surface of the panel to the bottom surface of the inwardly curved edge portion, and the nozzle is attached to the operating body. It is supported so that it can reciprocate in the protruding direction of the inner curved edge,
The nozzle is provided with a recessed portion that is fitted into the inner curved edge portion from the inside with a gap between the nozzle and both side surfaces of the inner curved edge portion, and the inner side surface of the concave portion is continuous with a U shape. A slit-shaped discharge port is provided, and a portion of the discharge port that contacts the edge of the edge portion is provided on the nozzle, and the nozzle is urged in a direction to fit the recessed portion to the edge portion. A sealing material applying device for a panel edge part, which is provided with a spring and a pipe for supplying a sealing material to the nozzle.