JPH0321596Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Field of industrial application: The present invention relates to an improvement of a lattice fastening fitting used in construction by forcibly fitting one end of the fitting to the protrusion of a sash frame.

B. Conventional technology: This type of conventional metal fitting had a flat edge at the occlusal part, and no work was done on this part. This type of metal fitting was able to be well interlocked and fixed on the protrusion of the sash frame without rubber patsuking, but when there is rubber patsuking, the occlusal part bites into the rubber patsuking along with the protrusion of the satsushi, so the rising wall of the metal fitting The problem was that the metal fittings tend to come off when an external force parallel to the metal fittings is applied (a force in the opposite direction to the driving of the metal fittings, the force indicated by the arrow in Fig. 3).

There is also a type that has a triangular protrusion on the edge of the occlusal part with the edge as the base that protrudes inward into the occlusal cavity. The tip of the piece just bites into the rubber packing and does not tear the rubber packing and the tip protrudes to the back side of the rubber packing. Therefore, the rubber packing is caught between the triangular protrusion and the satsushi protrusion, and the triangular protrusion is attached to the rubber. The drawback was that the retention force at the occlusal part was extremely weak due to the elastic force.

Therefore, in order to completely engage this type of metal fittings, you must either remove the rubber packing on the part that corresponds to the protrusion, or use a jig to remove and lift the rubber packing on the part where the metal fittings will be attached, and then attach the fittings. I had to go through the troublesome work of putting the rubber back on.

C. Purpose of the invention: By using a sash frame with rubber packing, the fitting can be firmly attached by simply forcing the engagement part of the mounting fitting into the protruding part of the sash frame, and the fitting can be firmly attached to the upright wall of the fitting. The object of the present invention is to obtain a lattice fastener that does not easily come off even when subjected to parallel external forces.

D. Structure of the invention: An example of the implementation of the invention will be explained with reference to the figure. 1 is a grid stopper, 2 is a sandwich plate, 3 is a sash frame, 4 is a rubber packing, and 5 is a sash.

The lattice stopper 1 is made of a metal plate bent into a substantially U-shape, and the tip of the rising wall 6 is folded back to form an interlocking part 7 having a pot-shaped cross section. The edge 8 of the occlusal part 7 is curved outward. A notch groove 10 is provided in the edge 8 of the occlusal part 7 in parallel with the edge 9, and the portion sandwiched between the notch groove 10 and the edge 9 is provided with a hanging protrusion 11.
It is as follows. The hanging piece 11 has an inner edge 12 bent toward the occlusal cavity 13 and an outer edge 14 slightly bent toward the rising wall 6. Figures 1 and 2 show hanging tab 1.
1 are located at both ends of the occlusal part 7, and FIG.

Next, there is a mounting part 15 on the opposite side of the rising wall 6 of the metal fitting, and the surface lattice 16 is sandwiched between the mounting part 15 and the sandwiching plate 2 to be fixedly held. 17 is a rib for reinforcing the metal fittings.

Next, a protrusion 18 projects from the sash frame 3, and a rubber packing 4 is provided between it and another small protrusion 19. The rubber packing 4 is placed over the protrusion 20 at the tip of the protrusion 18 and the protrusion of the small protrusion 19 to maintain the airtightness of the sash 5.

Note that when the inner edge 12 of the hooking piece 11 is tilted toward the occlusal cavity 13 side, an embossed edge 21 parallel to the edge 9 of the occlusal part 7 is stamped at the boundary between the hooking piece 11 and the cut groove 10. Press the hanging piece 11 so that it fits into the occlusal cavity 13.
It's turned to the side.

Further, it is appropriate to tilt it inward by approximately the thickness of the hanging protrusion piece 11.

E. Effect: 1 When the occlusal part 7 of the proposed metal fitting 1 is forcibly engaged (hammered) with the protrusion 18 of the sash frame 3 to which the rubber packing 4 has been applied, as shown in FIG. It fits into the projection 18 in a biting manner. When the hanging protrusion 11 passes the protrusion 20 of the protrusion 18, the elasticity of the occlusal part 7 causes the hanging protrusion 11 to
is pushed inward and enters the lower part of the protrusion 20 of the protrusion 18 while pressing the end of the rubber packing 4,
The inner edge 12 of the hanging protrusion piece 11 engages with the lower part of the protrusion 20 of the protrusion 18.

Therefore, even if a parallel force is applied to the rising wall 6 of the metal fitting, the metal fitting will not easily come off.
Also, when installing the metal fitting 1, please use the rubber packing 4.
It is characterized in that it does not require the effort of partially cutting out the rubber packing 4 or using a jig to partially remove the rubber packing 4 and attaching the metal fitting 1.

2 In the case of a conventional metal fitting in which the edge 9 of the occlusal part 7 is flat, if there is a protrusion 20 on the protrusion 18 of the sash frame 3, the occlusal part 7 is expanded by the height of the protrusion 20, so that no biting occurs. I had enough and couldn't use it.

However, in the case of the metal fitting 1 of the present proposal, the hanging protrusion piece 1
1, it has the feature that it can be used for both the sash frame projection 18 having the protrusion 20 and the sash frame projection 18 without the projection 20. Therefore, there is no inconvenience of having to manufacture and use separate metal fittings 1 according to the cross-sectional shape of the sash frame projection 18.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the proposed metal fitting, Figure 2 is a front view, Figure 3 is a side sectional view, Figure 4 is a side sectional view showing the state of use, and Figure 5 is a sash frame. , sectional view in use state showing the relationship with the surface grid, No. 6
The figure is a perspective view of another embodiment. In the figure, 3... sash frame, 4... rubber packing, 7... occlusal part, 10... notch groove, 11...
...hanging piece, 13...occlusal cavity, 16...face lattice, 1
8... Satsushi's projection, 20... projection.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. Forcibly fitting an interlocking part with a pot-shaped cross section provided at one end of a metal fitting into a protrusion of a sash frame in construction, thereby holding the metal fitting in the sash frame; In the grid fixing metal fitting which fixes and holds the surface grid on the attachment part of
0 is provided, and the protruding piece constituted by the notch groove 10 and the edge 9 is twisted and brought down to the occlusal cavity 13 side to form the hanging protruding piece 11.
A lattice fastener characterized by: 2. The lattice stopper according to claim 1 of the utility model registration, in which hanging protrusions 11 are provided on both sides of the edge 8. 3. The lattice stopper according to claim 1 of the utility model registration, in which the hanging protrusion 11 is provided approximately at the center of the edge 8.