JPH0311348Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a hinge for attaching a folding door made up of a plurality of panels.

Hinges traditionally used for folding doors hold multiple panels in a straight line (so-called flush condition).
Since the end face of the panel was abutted against each other in order to maintain the flatness, it had the disadvantage that the ability to maintain the same level was weak. Furthermore, the type of hinge that is attached to the upper and lower surfaces of the upper and lower crosspieces of the panel has almost no function of preventing displacement in the vertical direction. Regarding the drawback of weak flush holding force, for example, see Utility Model Publication No. 57-6718 and Utility Model Application No. 58-
No. 23967 has an example in which a stopper that comes into contact with the door in the closed position is installed on the hinge plate. However, there is a problem in terms of strength when the acting force from the panel is received only by the stopper of the hinge plate when the door is closed, and when the panel is closed when the door is opened, the conventional structure with no space between the pivot pin and the guide pin There was also a problem with the panel swaying horizontally.

The folding door hinge of the present invention solves the drawbacks of conventional products, and its structural feature is that it is a hinge that is attached to the upper and lower rails of the folding door and hinges between two panels. Both hinge plates have an L-shaped cross section consisting of the upper and lower crosspiece mounting surfaces and the vertical side of the hinge plate, and the vertical surfaces of the hinge plates are bendable by hinge pins, and the hinge plates are bent toward the upper and lower crosspiece mounting surfaces. In a folding door hinge that has an abutting part where both hinge plates abut, and the vertical plane of the hinge plate can be bent by the hinge pin and the hinge part, the vertical plane of the hinge plate has a butt part that is in contact with the hinge part. forming a protrusion;
The hinge plate upper and lower crosspiece mounting surfaces are provided with substantially rectangular cutouts that are long in the width direction of the folding door upper and lower crosspieces, and the space between both hinge plates is elastically supported by a spring body as required.

The present invention will be explained in detail below with reference to the drawings.

1 to 5 show a first embodiment of the present invention, in which FIG. 1 is a plan view, FIG. 2 is a front view, and FIG. 3 is a right side view. FIG. 4 is a plan view of the folded state. FIG. 5 is a perspective view showing the state of use. FIG. 6 is a perspective view of the second embodiment of the present invention. FIG. 7 is a sectional view taken along line AA in FIG.
FIG. 8 is a partial perspective view showing an example of a panel in which the product of the present invention is used.

As seen in these figures, the product of the present invention is a hinge that is attached to the upper and lower rails 2 and 1 of the panels 1, 1 of a folding door to hinge between the two panels 1, 1.
Both hinge plates 3, 3 have an L-shaped horizontally elongated cross section. Since the lower rail has a reverse relationship with the upper rail, the upper rail will be explained below. An abutment portion 5 is provided on the upper rail mounting surface 4 side of the hinge plate, with which both the hinge plates 3, 3 come into contact. The vertical surface 6 of the hinge plate is bendable by a hinge pin 7, and the space between both hinge plates 3 is elastically supported by a spring body 8 to ensure positional stability when closing and opening. There is. The spring body 8 is the first
The second torsion is designed so that elastic force is applied in the direction to maintain each state in either the stretched state shown in the figure or the folded state shown in Fig. 4, and the shape is almost in one plane. Although it is a coil spring,
It is not limited to this. A plurality of mounting holes 9 for fixing with screws, rivets, etc. and cutouts 10 for receiving panel strength are provided on the side of the mounting surface 4 to the upper crosspiece. Further, by providing the hinge portion 16 which can be bent using a vertically long hinge pin, displacement of the panel in the vertical direction can be prevented.

An example of how the spring body 8 is attached to the hinge plate is shown in FIG. 7, in which a pin attachment hole is formed by burring on the upper crosspiece attachment surface 4 side of the hinge plate.
By inserting a pin into it, it is possible to receive the pin more strongly than with just a hole made. In addition, the pin 12 can be fixed without the lower end protruding below the bottom surface of the upper crosspiece mounting surface 4 of the hinge plate, which is advantageous. hinge plate 6,
Projections 15, 15 are formed outwardly on the vertical surfaces of the panels 1, 15 at appropriate intervals from the hinges 16, 16, respectively, so that when the panels 1, 1 are closed, as shown in FIG. The hinge plates 6, 6 are connected to the protrusion 15,
15, the two hinged panels do not come together, and the distance between the pivot pin and guide pin provided at the tip of the panel is maintained to a certain extent, resulting in more stable three-point support, which prevents the panel from swaying horizontally. is minimized as much as possible. Conventionally, in order to maintain the distance between the pivot pin and the guide pin, a stop piece made of, for example, rubber was provided in the upper rail near the pivot pin, but this can be omitted by forming the protrusions 15, 15. It is. By adopting such a structure, the drawbacks of the conventional hinge plate can be overcome, and the function of the hinge plate can be sufficiently maintained even with a thin plate.

The folding door hinge with the above structure is as shown in Figure 8, where the two panels 1 and 1 meet,
To prevent fingers from getting stuck in the panel gap when closed, there is a finger jamming prevention groove 1 in the vertical direction that is larger than the finger size.
Good results have been obtained when used to open and close panels with cutouts to form 3. That is, in the folding door hinge of the present invention, the abutting portions keep the panels well flush, and the hinge portions prevent the panels from shifting in the vertical direction. Further, due to the presence of the abutting portion, the interval between the finger jamming prevention grooves provided in the panel is maintained at a predetermined width or more, thereby ensuring safety. By providing the protruding part, when the panel is closed, the interval between the pivot pin and the guide pin of the panel is maintained appropriately by the contact of the protruding part when the panel is closed, resulting in more stable three-point support, and the panel does not sway horizontally.

Furthermore, since there are approximately rectangular cutouts long in the width direction of the upper and lower crosspieces of the folding door on the mounting surface of the upper and lower crosspieces of the hinge plate, this cutout receives the force exerted in the front and back direction from the panel when the door is closed. This prevents the hinge from slipping, increases the durability of the hinge, and improves the mounting rivets.
This also has the effect of improving the durability of the screw.

[Brief explanation of the drawing]

1 to 5 show a first embodiment of the present invention, in which FIG. 1 is a plan view, FIG. 2 is a front view, and FIG. 3 is a right side view. FIG. 4 is a plan view of the folded state. FIG. 5 is a perspective view showing the state of use. FIG. 6 is a perspective view of the second embodiment of the present invention. FIG. 7 is a sectional view taken along line AA in FIG.
FIG. 8 is a partial perspective view showing an example of a panel in which the product of the present invention is used. 1...Panel, 2...Upper crosspiece, 3...Hinge plate,
4... Upper crosspiece mounting surface of the hinge plate, 5... Butt portion, 6... Vertical surface of the hinge plate, 7... Hinge pin,
8...Spring body, 9...Mounting hole, 10...Cutout, 12...Pin, 15...Protrusion part, 16...Hinge part.

Claims (1)

[Scope of utility model registration request] It is a hinge that is attached to the upper and lower bars of a folding door to hinge between two panels, and both hinge plates 3, 3 have a horizontally long L-shaped cross section, and both hinges are attached to the upper and lower frame mounting surfaces 4 of the hinge plates. In a folding door hinge in which a butting part 5 is provided where the plates 3 and 3 come into contact, and the hinge plate vertical surface 6 can be bent by the hinge pin 7 and the hinge part 16, the hinge plate vertical surface 6 has a lower part than the hinge part. This hinge for a folding door is characterized in that protrusions 15 are formed at separate positions, and a substantially rectangular cutout 10 that is long in the width direction of the upper and lower crosspieces of the folding door is provided on the hinge plate upper and lower crosspiece mounting surfaces 4.