JPS6117176Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a hinge structure for a folding door, and more particularly, to a hinge structure in which a pair of panels are foldably connected via a hinge post disposed between the two panels.

In general, this type of hinge structure includes a hinge post 2 having a substantially U-shaped cross section, as shown in Figure 1.
Hooks 4 having a substantially C-shaped cross section and projecting from the end face of the panel 1 are rotatably fitted onto hinge shafts 3 provided on the left and right sides of the panel. By the way, this type of hinge post 2 is manufactured by extrusion molding, and is shown in Fig. 2a.
If the distance between the left and right hinge shafts 3 and the distance between the center piece 8 of the hinge post 2 and the hinge shaft 3 are set narrow as shown in the figure, the strength of the mold used for extrusion (indicated by diagonal lines in the figure) will decrease. Therefore, it is necessary to set dimensions a and b shown in FIG. I had a problem with hook 4 coming off.

The present invention was created in view of the above points, and its main purpose is to create a hinge structure for a folding door that allows a pair of panels to be foldably connected through a hinge post placed between them without rattling. The goal is to provide the following.

The present invention will be explained in detail below based on embodiments shown in the figures. The hinge structure of the folding door according to the present invention is as shown in FIG.
and hooks 4, 4 that protrude from the side edges of each panel 1 and are rotatably fitted to hinge shafts 3, 3 formed on the left and right sides of the hinge post 2, respectively, and the hinge post 2 has a horizontal cross-sectional shape. Tongue pieces 6, 6 extend inward from the tips of the U-shaped side pieces 5, 5 at a substantially right angle, and a substantially circular hinge shaft 3 is formed at the tip of each tongue piece 6. The hooks 4 protruding from the end faces of each panel 1 are integrally molded in a shape in which a pair of protrusions 9 protrude inward from the left and right centers, and the hooks 4 protruding from the end surfaces of each panel 1 have a substantially C-shaped horizontal cross section. By rotatably fitting the hinge shaft 3, the pair of panels 1, 1 are foldably connected via the hinge post 2, and the projections 9, 9 of the hinge post 2 are foldably connected.
C-shaped portions 1 of the hooks 4 are provided on both left and right sides of the other end of the spacer 12, one end of which fits into the groove 11 formed therebetween.
Arcuate surfaces 13, 13 that match the 0 outer surface are formed,
C-shaped portion 1 of each hook 4 along each arcuate surface 13
0 The feature is that the outer surface slides.
The pair of panels 1, 1, which are foldably connected via the hinge post 2, are arranged between the upper and lower pair of rails 15, 16, as shown in FIG. Each panel 1 has a runner 17 projecting from the upper surface of the side end opposite to the hinge post 2, which is freely suspended from the upper rail 15, and a runner 17 protruding from the top surface of the side end opposite to the hinge post 2. The pivot 18 protruding from the lower surface is fitted into the lower rail 16 so that it can run freely, and both the upper and lower rails 1 are connected.
If the pivot 18 of one panel 1 is fixed to the lower rail 17, both panels 1, 1 can be opened and closed using the side end of this panel 1 as the fixed end. The hinge post 2 is installed over the entire vertical length between both panels 1, 1.
Caps (not shown) are attached to the upper and lower ends of the hinge column 2 to prevent the hinge column 2 from shifting vertically, thereby preventing the hinge column 2 from falling off. This hinge post 2 is formed into a long body by extrusion molding, and as shown in FIG. 5, both hinge shafts 3, 3 The distance between them (dimension a) and the distance between the protrusion 9 and the hinge shaft 3 (dimension b) are set sufficiently wide. On the other hand, in the hook 4 that connects the panel 1 and the hinge post 2, as shown in FIG. It is formed in a cross-sectional shape. As shown in FIG. 4, the spacer 12 is fixed to the hinge post 2 by fitting a T-shaped portion 21 formed at one end into a groove 11 between both protrusions 9, 9, and connecting left and right arrowhead portions formed at the other end. The arcuate surfaces 13, 13 of the hooks 4 are fitted on the outer periphery of the hinge shaft 3, respectively, and the C-shaped portions 10 of each hook 4 are aligned with the outer surfaces of the C-shaped portions 10 of each hook 4.
The hinge shaft 3 and the arcuate surface 13 cover the inside and outside surfaces during opening and closing, respectively.
Since the C-shaped portion 10 rotates around the hinge shaft 3 while sliding, the C-shaped portion 10 does not wobble around the hinge shaft 3. The spacer 12 may be attached to the entire length of the upper and lower sides of the hinge post 2, or may be attached to a portion thereof.

Since the present invention has the above-mentioned configuration, a spacer is provided in which the C-shaped portion of the hook that fits into the approximately circular hinge shaft formed on the left and right sides of the hinge pillar and rotates around the hinge shaft is attached to the hinge pillar. Therefore, this C-shaped part can rotate around the hinge axis without wobbling, and the dimensions of the hinge pillar manufactured by extrusion molding are determined so as not to damage the extrusion mold. Even if the distance between both hinge shafts and the distance between the hinge shaft and the center piece of the hinge post are increased, the hook that is rotatably fitted to the hinge shaft will not wobble during opening and closing of the panel, and the panel can be opened and closed smoothly. It has the advantage of being able to be carried out.

[Brief explanation of the drawing]

Fig. 1 is a partial plan view showing a conventional example, Fig. 2 a,
Fig. 3 is a schematic perspective view showing an embodiment of the present invention, Fig. 4 is a partial sectional view of the same, and Fig. 5 is a plan view of a hinge column used in the above. 6 are plan views showing other examples of hinge columns used in the above, 1 is a panel, 2 is a hinge column, 3 is a hinge shaft, 4 is a
is the hook, 5 is the side piece, 6 is the tongue piece, 8 is the center piece, 9
10 is a protrusion, 10 is a C-shaped portion, 12 is a spacer, and 13 is an arcuate surface.

Claims (1)

[Scope of utility model registration request] comprising a hinge post arranged vertically between a pair of adjacent panels, and a hook protruding from the side edge of each panel and rotatably fitted to a hinge shaft formed on the left and right sides of the hinge post, respectively; The hinge post has a U-shaped horizontal cross-sectional shape, with tongues extending inward from the tips of both sides at a substantially right angle, and a substantially circular hinge shaft is formed at the tip of each tongue, and extends from the left and right sides of the center piece of the U-shape. The hooks are integrally molded into a pair of shapes projecting inward from the center, and the hooks projecting from the end faces of each panel are formed into a horizontal section or approximately C-shape, and the hinge shaft is rotatably fitted into the C-shape of the hook. As a result, the pair of panels are foldably connected via the hinge post, and one end of the spacer fits into the groove formed between the protrusions of the hinge post, and a hook is attached to the outer surface of the C-shaped portion of each hook on the left and right sides of the other end of the spacer. A folding door hinge structure in which matching arcuate surfaces are formed and the outer surface of the C-shaped portion of the hook slides along each arcuate surface.