JPH0367911B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for assembling a vehicle window glass to a vehicle window frame via a weather strip.

[Conventional technology and issues]

The method for assembling this type of window glass is to fit a gasket type weather strip around the periphery of the window glass in advance.
A method is conventionally known in which a fitting groove formed on the outer periphery of the window frame is fitted into a fitting edge of the window frame using a drawstring. The action of the drawstring in this method is
The purpose is to bend the window frame holding piece forming the side wall of the fitting groove and guide it inside the window frame fitting edge, and for this purpose, the drawstring is inserted into the fitting of the weather strip, leaving both ends. The string is inserted into the groove in a loop shape, and after such preliminary preparation, the window glass is positioned vertically and horizontally of the window frame for installation, while pulling both ends of the above-mentioned drawstring inside the vehicle interior to remove the window glass. This work required several workers and involved skill and a great deal of labor. In such cases, a jig as described in JP-A-55-123523 may be used, but
In this case, it is not possible to eliminate the need for operators to pull strings.

The present invention was made based on the above circumstances, and
By mechanizing the work of holding down the window glass and the work of pulling the string, it is intended to improve the efficiency of the work of stringing the window glass and to reduce the amount of labor required.

[Means to solve the problem]

For this purpose, the present invention includes a process of holding the positioned window glass using a holding device that advances to a position facing the outer surface of the windshield, and an extension operation of a robot arm that enters the vehicle interior from the outside of the vehicle. The process of guiding the drawstring near the center of the inner surface of the window glass and wrapping the drawstring vertically and penetratingly at that position to form a pulling fulcrum for the drawstring, and the process of chucking both ends of the drawstring to shrink it. This method is characterized in that it includes a step of converging and pulling the drawstring toward the traction support point by the operating second robot arm.

〔Example〕

Hereinafter, one embodiment of the present invention will be specifically described based on the drawings.

In FIGS. 1 and 2, reference numeral 1 designates a front panel of a vehicle, 2 a roof, and 3 left and right front pillars, which form a window frame of a front windshield 4. As shown in FIG. A fitting edge 5 that protrudes inward is formed on this window frame over almost the entire circumference, while a weather strip 6 is fitted to the outer periphery of the window glass 4 that is fitted here. There is. This windsor strip 6 is of a gasket type, and as shown in cross section in FIG. 1, a fin-shaped clamping piece 7 having a predetermined flexibility is formed on the side wall of the windshield 4 on the side of the vehicle interior. A fitting groove 8 is formed on the outer periphery of the weather strip 6 by the holding piece 7 so that the fitting groove 8 can be fitted into the fitting edge 5 over the entire circumference thereof.

And when installing the window glass 4,
Insert the drawstring 9 for installation into the fitting groove 8 of the weather strip 6 in advance and wrap it around the entire circumference. In this state, the window glass 4 is positioned vertically and horizontally in correspondence with the window frame. These tasks are performed manually, but subsequent tasks such as holding the windshield, pulling the string, and collecting the string are automatically performed using mechanical power.

First, the holding device 11 installed on the self-propelled crane vehicle 10 shown in FIG. 3 is moved to the right side in the figure so as to face the window glass 4. This presser device 11 has a presser frame 14 attached to the tip of a piston rod 13 of an air cylinder 12, and the presser frame 14 has an elastic presser pad 1 made of, for example, urethane rubber.
5 are arranged so as to evenly press the vicinity of the peripheral edge of the window glass 4. Therefore, the air cylinder 12 is expanded, and the pad 15 elastically presses the window glass 4 to prevent the window glass 4 from lifting or shifting.

In parallel with the work of holding down the window glass 4, the work of setting the drawstring 9 using the string support device 16 is performed. This setting work may be performed after the presser work is completed, but it is performed at the same time as the presser work in order to eliminate lag time. The string support device 16 has a string support attachment 18 attached to the tip of a robot arm 17 that is controlled to advance and retreat as appropriate.
The string support attachment 18 is a cylindrical string support finger that is divided into halves and can be opened and closed in the horizontal direction of the robot arm 17 in the horizontal plane. 2
It is equipped with 0. Further, the string scooping rod 19 is divided into two forks below the string support finger 20 and extends diagonally in front of the left and right sides of the robot arm 17.
One side forms a relatively long string guide part 19a, and the other side forms a short stopper part 19b. Therefore, the first
As shown in the figure, the robot arm 17 is extended to cause the string support device 16 at the tip thereof to enter the vehicle interior through the side window of the vehicle. This approach angle is
The extending direction of the robot arm 17 is directed toward the center of the windshield 4, and in the middle of the extending operation, the string guide portion 19a of the string scooping rod 19 catches both ends of the drawstring 9 hanging inside the vehicle interior. It should be selected appropriately so that it can be done. As the robot arm 17 extends, both ends of the drawstring 9 are guided toward the stopper 19b by the string guide portion 19a of the string scooping rod 19, and eventually reach the position of the string support finger 20. During this time, the string support finger 20
are left open to the left and right, and when the drawstring 9 reaches near the stopper 19b, the extension of the robot arm 17 is stopped and the string support finger 20 is closed by an appropriate means such as remote control. By doing this, the drawstring 9 is attached to the string support finger 20.
The string is inserted inside and the string support work is completed.

Next, the string pulling device 21 performs a string pulling operation.
Although this string pulling device 21 will not be described in detail, there is a chain at the tip of another robot arm 22, which is driven to extend and contract in the same way as the robot arm 17, consisting of a pair of male blocks 23 and female blocks 24 that can be opened and closed in the left and right directions. As shown in FIG. 4, both blocks 23 and 24 are fitted with a concave groove 24a passing in the horizontal direction and a protrusion 23a on their opposing surfaces, and the above-mentioned string scooping rod 19 is The terminal part of the drawstring 9 hanging downward can be inserted between the two for chucking. In order to ensure the chucking of the drawstring 9, the opposing outermost end surfaces of both blocks 23 and 24 are knurled. Further, the end face of the female block 24 is provided with a plurality of vertical notches 24b through which the drawstring 9 can be inserted, and the end face of the male block 23 is provided with a non-slip plate 23b. It is fixedly installed to prevent the drawstring 9 from slipping when the robot arm 22 is retracted after chucking the drawstring 9. Therefore, the chucking head 25 extends the robot arm 22 with it opened to the left and right, stops it at the position where it catches the end of the drawstring 9, and closes the chucking head 25 to open the drawstring. After checking, the robot arm 22 is retracted. During this contraction operation, the robot arm 19 stops and the string support finger 20 also remains closed. In this way, the contraction of the robot arm 22 causes the drawstring 9 to be pulled toward the string support finger 20, that is, toward the center of the window glass 4.
This string pulling direction is the direction in which the clamping piece 7 of the weather strip 6 is bent toward the inside of the window frame.
By the contraction operation of the robot arm 22, the clamping pieces 7 are sequentially guided to the inner side of the fitting edge 5 of the window frame, and as the drawstring 9 is disengaged from the fitting groove 8 of the weather strip 6. Therefore, the fitting edge 5 of the window frame is located there.
Incorporate. That is, fitting of the fitting groove 8 into the fitting edge 5 starts from the upper left and right center of the window frame when the drawstring 9 starts to be pulled, and from there in the left and right direction as the drawstring 9 is pulled. It progresses from top to bottom on both sides, and on the lower side of the window frame, it progresses from both left and right ends to the center, and ends when the drawstring 9 is fully pulled. Note that if the stroke of the robot arm 22 that performs the string pulling work is long, the installation of the weather strip 6 to the window frame fitting edge 5 can be completed in one contraction operation, but even if the stroke is short, the The above-mentioned work can be completed by repeating the stretching operation, the chucking of the drawstring 9, and the contraction operation.

After the string pulling work accompanying the contraction operation of the robot arm 22 is completed, the arm 22 is moved into the vehicle interior again, the chucking head 25 is opened, and the drawstring 9 is dropped into the vehicle interior. During this work, the piston rod 13 is expanded and contracted several times by operating the air cylinder 12 of the holding device 11 mentioned above, and the windshield 4 is hit with the holding button 15 to correct any defects in the holding piece 7 of the weather strip 6. death,
Complete the assembly of the windshield to the vehicle window frame.

〔Effect of the invention〕

As explained above, according to the present invention, a gasket type weather strip is fitted, and a drawstring for attachment is inserted in a loop shape into the fitting groove of the weather strip, and then attached to a window frame. The windshield positioned against the windshield is held in that state by the holding device, and both ends of the drawstring are extended near the center of the inner surface of the windshield by a robot arm that enters the cabin from outside the vehicle. The second wire was guided and held in a penetrating state in the vertical direction at that position, and the drawstring was chucked in this state.
The retracting action of the robot arm causes the drawstring to converge and pull toward the center of the windshield, eliminating the need for several workers to hold the windshield and pull the string, as was the case in the past. Labor saving can be achieved. Moreover, the string pulling work is performed by the cooperation of the first and second robot arms that can extend and contract, and does not require complicated movements, so the range of application is wide.Moreover, the pulling direction of the string is near the center of the inner surface of the window glass. Since it converges, it has the effect of ensuring reliable assembly of the window glass.

[Brief explanation of drawings]

Fig. 1 is a schematic plan view illustrating an embodiment of the present invention, Fig. 2 is a schematic longitudinal cross-sectional view of the same, Fig. 3 is a schematic layout diagram of a device used in an embodiment of the invention, and Fig. 4 is a schematic plan view of the same. FIG. 3 is an exploded perspective view of the shooting head. 1...Front panel, 2...Roof, 3...
Front pillar, 4... Windshield, 5...
Fitting edge, 6... Weather strip, 7... Holding piece, 8... Fitting groove, 9... Draw string, 10... Self-propelled clay truck, 11... Holding device, 12... Air Cylinder, 13... Piston rod, 14... Presser bar, 15... Presser pad, 16... Strap support device,
17... Robot arm, 18... String support attachment, 19... String scooping rod, 20... String support finger, 21... String pulling device, 22... Robot arm, 25... Chucking head.

Claims (1)

[Claims] 1 Fit a gasket type weather strip around the periphery of the windshield, insert a drawstring for attachment into the fitting groove formed on the outer periphery in a loop shape, leaving both ends intact, and then remove the windshield. In a method for assembling a window glass, the fitting groove of the weather strip is fitted into the fitting edge of the window frame by positioning the weather strip with respect to the window frame and pulling the drawstring while maintaining this state, The process of holding the windshield in a fixed state using a holding device that can advance to a position facing the outer surface of the windshield, and in parallel with this holding process, a pulling device that A string supporting step in which both ends of the string are guided near the center of the inner surface of the window glass, and the drawstring is wrapped vertically and penetratingly at that position to form a pulling fulcrum for the drawstring; The second part is capable of contraction by chucking.
A method for assembling a window glass, comprising a string pulling step of converging and pulling the draw string toward the traction fulcrum after the string supporting step using the robot arm.