JPH0536059Y2 - - Google Patents

Description

[Detailed description of the invention] A. Field of industrial application The present invention relates to an automatic opening/closing device for a sliding door, and in particular relates to the connection between an outer frame (open) and an inner frame (engine case).

B. Prior Art In this type of automatic opening/closing device, as seen in the cross-sectional view shown in the third figure, the inner frame 1 and the outer frame 2 are connected by a corner piece 3 that covers both ends of the frames 1 and 2. and tightening bolts 4, 4, which are screwed in from the outside of the corner piece 3...
The bolt grooves 5, 5, . . . formed in advance and the screws 7, 7, .

Problems to be Solved by the Invention The conventional inner and outer frames 1 and 2 and the coupling means as described above include bolts 4, 4... and bolt grooves 5, 5...
... was designed to be tightened only at both ends of both frames 1 and 2, but this is not necessarily strong enough for heavy door bodies, so screws 7, 7 ... are tightened in the grooves. 6 into the lower edge 1a of the inner frame 1.

In this case, the fixed door (or fitting glass) 8 to be fitted into the groove 6 must be fitted into the groove 6 after screwing in the screws 7, 7... Not only is it impossible to directly manipulate the screws 7 after the frames 1 and 8 are fitted, but the screws 7 are oriented vertically as shown in the figure, and the frames 1 and 2 themselves are made of light alloy, so the supporting capacity is limited. However, there was a problem in that it was not always sufficiently effective.

C. Means for solving the problem Therefore, in the present invention, in order to solve the above problem, the cross section is approximately U-shaped and a drive mechanism is built in, and the guide rail of the pulley of the movable door is stretched on the lower edge of the opening. A sliding type having a vertically elongated inner frame, and an outer frame which is similarly U-shaped in cross section and has a concave groove portion on its lower edge in which the inner frame is superimposed and into which a fixed door (fitting glass) is fitted. In the automatic door opening/closing device, a protruding edge 10 is stretched over the bottom 1a of the inner frame 1, and an overlapping portion between the protruding edge 10 and one side wall 6a of the groove 6 of the outer frame 2 is provided. The connection between the inner and outer frames 1 and 2 is strengthened by tightening with tightening members such as screws 7'.

Further, a notch 10a and a step 10b are provided at the base of the protruding edge 10, and the protruding edge 1
This made it possible to easily excise 0.

E. Embodiment Figure 1 is a vertical cross-sectional view of the main parts of an embodiment of the automatic opening/closing device of the present invention, and Figure 2 is an enlarged view of the circular part of Figure 1, with parts similar to those shown in Figure 3. are marked with the same number. That is, 1 is an inner frame, 2 is an outer frame, 3 is a corner piece that closes both open ends of the frames 1 and 2, and 4 is a tightener that tightens the corner piece 3 and the bolt groove 5 of the inner and outer frames 1 and 2. A bolt, 6 is a concave groove integral with the outer frame 2, 7' is a screw replacing the screw 7 shown in the third figure,
8 is a fixed door, 9 is a movable door, 10 is an inner frame 1
The screw 7' is screwed into the overlapping portion of the edge 10 and one side wall 6a of the recessed groove 6 to tighten it.

In the figure, 11 is a guide rail, 12 is a pulley, and 13 is a guide rail.
1 is a hanger frame, and 14 is a rambling glass fixture.

In the device of the present invention having the above-described configuration, it is possible to screw the screw 7' into the overlapping part of the protruding edge 10 and the side wall 6a of the groove part 6 from the outside in the lateral direction, and to tighten the screw 7' as compared to the conventional device. As shown in the third figure, there is no need to screw in the screws 7 before fitting the fixed door 8, and the screws 7 can be operated freely from the outside of the groove 6, even after the fixed door 8 is installed. ′ operation becomes possible.

In addition, in the case of the ready-made outer frame 2, the groove portion 6
If the width d becomes wider and the protruding edge 10 becomes an obstacle, the protruding edge 10 can be forcibly removed with pliers or the like. As is clear from the figure, a notch 10a and a stepped portion 10b are provided to facilitate cutting, and the key is to form a shape that is strong enough to withstand a suspension force and is easy to cut when peeled off.

G. Effects of the Invention As described above, according to the device of the present invention, the protruding edge 10 is provided on the bottom 1a of the inner frame 1, and the screws 7' are screwed into the protruding edge 10 laterally, thereby recessing the outer frame 2. Since the groove 6 is tightened, the connection between the two is further strengthened, and the operation of the screw 7' is extremely easy.
Because it can be easily cut out,
If it is not possible to combine the recessed groove 6 with a wide width d, it is possible to easily accommodate the wide recessed groove 6 by tearing off the protruding edge 10, and the above-mentioned reinforcement Together with this, the practical benefits are extremely significant.

[Brief explanation of the drawing]

Fig. 1 is a vertical sectional view of the main part showing one embodiment of the device of the present invention, Fig. 2 is an enlarged view of the circular part of Fig. 1, and Fig. 3
The figure is a vertical sectional view of the main parts of an example of a conventional device. 1...Inner frame, 2...Outer frame, 6
... Concave groove, 7'... Screw, 8... Fixed door (or fitted glass), 9... Movable door, 10... Projecting edge, 11... Guide rail, 12... Pulley.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A vertically elongated inner frame with a substantially U-shaped cross section and a built-in drive mechanism, with a guide rail for the pulley of the movable door stretched over the lower edge of the opening; In an automatic sliding door opening/closing device having an outer frame in which the inner frame is molded and polymerized, and the outer frame has a groove portion on the lower edge into which a fixed door (fitting glass) is fitted, the inner frame 1 is A protruding edge 10 is provided on the bottom 1a, and the protruding edge 10 and the groove 6 of the outer frame 2 are connected to each other.
An automatic opening/closing device for a sliding door characterized in that the overlapping portion with one side wall 6a is tightened with a tightening member such as a screw 7'. (2) The base of the protruding edge 10 provided on the bottom 1a of the inner frame 1 has a notch 10a and a step 10b.
An automatic opening/closing device for a sliding door according to claim 1, characterized in that the automatic opening/closing device for a sliding door is provided with: