JP5215896B2 - Anti-seismic hinge and door device using the same - Google Patents

Description

  The present invention relates to a hinge for attaching a door to a frame body so that the door can be opened and closed. In particular, even when an external force that deforms the frame body due to an earthquake or the like is received, the hinge absorbs the deformation and the door. This is related to anti-seismic hinges that can be opened reliably.

  Conventionally used flag hinges are composed of blade plates with one side of two rectangular metal plates rolled into a tubular shape and provided with mounting holes in the remaining plate portion, and the lower blade tube portion attached to the frame side A shaft projecting upward is inserted and fixed, and a star is fixed to the end of the tube portion. In addition, the shaft is rotatably inserted into the pipe portion of the upper blade attached to the door-side small facet with a bearing interposed therebetween, and a star is fixed to the end of the pipe portion. The door is supported by the frame body with the lower end of the pipe portion of the blade abutted through the bearing. Therefore, when an external force such as an earthquake acts and the frame is deformed, there is no gap between the upper end of the lower blade and the lower end of the upper blade. The door cannot be opened and closed.

  A hinge (see, for example, Patent Document 1) having an anti-seismic property that can open a door even when a deformed load is applied to the hinge so that the frame is not deformed is known. Yes. The hinge described in Patent Document 1 includes a first blade plate in which a support shaft is fixed in a support shaft holding tube and a tip thereof is integrally projected from a side edge portion, and a guide tube (tube portion). A hinge having a second vane fitted to the support shaft, a load plug contacting the tip of the support shaft is slidably disposed in the guide tube, and the load plug is A locking portion that prevents the shaft from coming off is formed, the end of the guide tube is closed with a lid plug, a compression coil spring is mounted between the lid plug and the load plug, and the first vane plate A configuration is provided in which a gap is formed between the portion closest to the two blades and the portion of the second blade closest to the first blade. When the frame is deformed by an earthquake or the like and an external force is applied to the door, the gap between the blades becomes a compression margin to prevent the hinge from being deformed, and the door can be opened. Thus, the conventionally proposed anti-seismic hinge has a structure in which a load plug and a compression coil spring are provided on the second blade (upper blade) side, so that the tube portion of the second blade (upper blade) is conventionally hinged. It is generally necessary to form a longer blade plate than the blade plate of the second blade plate (upper blade) in comparison with the blade plate of the first blade plate (lower blade). Reference 2).

  However, when the length of the upper blade is abnormally longer than that of the lower blade, there are various problems. For example, when using such hinges for new frames and doors, there is no major problem, but in ordinary doors where the upper and lower parts of the door are attached to the frame using conventional hinges, Even if you try to replace the anti-seismic hinge as described above due to the anti-earthquake, there are many cases where it cannot be replaced. Also, the lengths of the upper and lower blades are different, the appearance is uncomfortable, the materials are wasted, and the processing requires approximately twice the capacity of conventional processing machines, making it difficult to obtain economically.

JP-B-2-29832 (Claims, column 5, line 27 to column 6, line 29, FIG. 5) Japanese Patent No. 4067910 (drawing)

  The problem to be solved by the present invention is that the anti-seismic hinge as described above can be easily replaced with the hinge used for the existing door, and the compression cost at the time of deformation is about the same as the conventional anti-seismic hinge The objective is to provide anti-seismic hinges that can be secured, processed easily and economically.

  In order to maintain the compression allowance of the anti-seismic hinge as described above and make the anti-seismic hinge with a length close to that of a general hinge blade, the compression coil springs and load plugs are provided on the upper and lower blades. What is necessary is just to absorb about half of the bill with the upper and lower blades. However, if the upper and lower blades and the shaft are assembled, and each blade is freely movable so that the compression allowance is shared by the upper and lower blades, the upper blade, the lower blade and the shaft are divided into three parts during transport and construction. May be broken up and handling is troublesome. Thus, the present invention was invented from such a point of view, and according to the present invention, a lower blade and an upper blade are formed by winding a side edge of the blade plate to form a tube portion having the same width as the blade plate. A shaft that communicates with the tube portion of each blade and can move up and down relatively is provided, and the tube portion end of each blade is closed with a star, so that it can slide in the tube portion so as to contact both ends of the shaft. A stopper is provided in the tube so as to insert the washer and limit the movement range of the washer, and a compression coil spring is inserted between the washer and the star so as to urge the washer in the direction of the stopper. There is provided an anti-seismic hinge characterized in that a gap is formed between the blade and the upper blade, and the shaft is connected to one washer, and the above-mentioned problems are solved.

  Further, according to the present invention, the anti-seismic hinge in which the washer inserted in the lower blade is fixed to the shaft end by a set screw, a retaining ring fixed in the pipe portion, or a guide inserted into the pipe portion from the pipe end. The said anti-seismic hinge which comprised the said stopper with the pipe is provided, and the said subject is solved.

  The present invention is configured as described above, and has a lower blade and an upper blade that are wound around the side edge of the blade plate to form a tube portion having the same width as the blade plate, and communicates with the tube portion of each blade. A shaft that can move up and down and rotate is provided, the tube end of each blade is closed with a star, and a washer is slidably inserted into the tube so as to abut both ends of the shaft, and the movement range of the washer is increased. A stopper that the washer abuts in the pipe portion to limit, and a compression coil spring is inserted between the washer and the star so as to urge the washer in the stopper direction to form a gap between the lower blade and the upper blade, When the shaft is connected to the washer of one blade and the other blade is assembled into the shaft, the gap formed between the lower blade and the upper blade becomes the compression allowance, which is less than the compression allowance of the conventional anti-seismic hinge. Half of the compression allowance is secured on the upper blade side, and the other half is secured on the lower blade side. The compression allowance can be maintained at the same level as the compression allowance, and the length of each vane is the same as the length of the tube, so it can be economically manufactured, and the existing door is not aesthetically pleasing. Can be easily exchanged for the hinge.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows one embodiment of the present invention, (A) is a normal state, (B) is a cross-sectional view of a state where a load such as an earthquake is applied to a hinge. FIG. (A)-(D) are the front views which each cut a part of axis | shaft. Sectional drawing of a normal state which shows another Example. FIG. 5 is a cross-sectional view showing a state where a load such as an earthquake is applied in the embodiment shown in FIG. 4.

  FIG. 1 shows an embodiment of the anti-seismic hinge of the present invention, wherein the lower blade 1 and the upper blade 2 are wound around the side edges of the blade plates 3 and 4, respectively, and have the same width as the blade plates 3 and 4. 5 and 6 are formed, and the blades 3 and 4 are formed with attachment holes 7 for attachment to doors and frames not shown. The position, number, etc. of the mounting holes 7 are preferably the same as those of conventional general hinges. In the embodiment shown in FIG. 1, a groove is provided in the blade before winding the blades 3 and 4 as described above, and an annular groove 8 is formed by the groove in the pipe when wound. It is like that. A shaft 9 is inserted into the tube portions 5 and 6 of the lower blade 1 and the upper blade 2 so as to communicate with the tube portions 5 and 6. It is provided to be movable and rotatable. At this time, the fitting of the lower blade 1 and the upper blade 2 and the shaft 9 is a clearance fit so that the shaft and the blade can move relatively freely, but the fitting of the upper blade 2 and the shaft 9 is performed. Is a clearance fit that allows the shaft 9 and the upper blade 2 to freely rotate. When the lower blade 1 and the shaft 9 are fitted, the relative movement of the lower blade 1 and the shaft 9 is normally restricted, and the hinge is deformed. When a load is applied, the shaft 9 and the lower blade 1 may be provided in an intermediate fit close to a clearance fit so that the shaft 9 and the lower blade 1 can move relatively in the axial direction along the tube portion 5. A star 10 is fitted and closed at the ends of the pipes of the blades 1 and 2, and the star 10 is fixed integrally with the pipes 5 and 6 by welding or pinning.

  The shaft 9 is tapered at both ends as shown in FIG. 3, and the tip of the tapered portion formed at the tip on the upper blade 2 side is formed in a spherical shape as shown in FIGS. Alternatively, as shown in FIG. 3 (D), the ball 11 is fitted to rotate lightly. The tip on the lower blade 1 side is formed in a small diameter portion, and a connecting portion 12 is provided at the tip. As the connecting portion 12, as shown in FIG. 3 (A), a protruding shaft 12a having a knurling or knurling formed on the peripheral surface, a small protrusion 12b for welding (FIG. 3 (B)), or caulking A protruding shaft 12c can be provided (FIG. 3C), or a screw hole 12d can be provided to screw a set screw.

  A washer 13 is inserted into each of the pipe portions 5 and 6 so as to be in contact with both ends of the shaft 9. In the embodiment shown in the figure, the washer 13 is formed in a disk shape, but the shape, structure, material, etc. may be changed between the lower blade and the upper blade, for example, the washer on the upper blade 2 side is block-shaped. You may form in. One washer, usually a washer 13 on the lower blade 1 side, is connected to the shaft 9 as shown in the figure. In the embodiment shown in the figure, the insertion hole formed in the center of the washer 13 is press-fitted into the projecting shaft 12a, welded to the small projection 12b, inserted into the projecting shaft 12c, crimped, or fixed to the screw hole 12d. The washer 13 and the shaft 9 are fixed by screwing them in, but they may be fixed by bonding or other appropriate methods (not shown).

  A stopper 15 with which the washer 13 abuts is provided in the pipe parts 5 and 6 so as to limit the movement range of the washer 13. In the embodiment shown in FIG. 1, a substantially C-shaped elastic retaining ring 16 is fitted into the annular groove 8 formed in the pipe portions 5 and 6 as a stopper, but a stopper having an appropriate configuration is used. It may be provided.

  A compression coil spring 17 is inserted between the washer 13 and the star 10 so as to urge the washer 13 toward the stopper 15. In the normal state, the compression coil spring 17 is strong enough to support the door load and form a gap 18 as a compression allowance between the lower blade 1 and the upper blade 2. A substantially cylindrical decorative ring 19 is fitted between the tube portions so that the gap 18 cannot be seen from the outside.

  When the door is suspended in the frame body using the hinge having the above structure, the washer 13 is normally in contact with the stopper 15 and the compression coil spring 17 is not bent, and the structure shown in FIG. As shown, since the gap 18 is formed between the lower blade 1 and the upper blade 2, the door can be opened and closed as usual. When the frame is deformed due to an earthquake or the like and an unexpected deformation load acts on the hinge, the upper blade 2 and the lower blade 1 push the washer 13 and the compression coil spring 17 through the shaft 9 to reduce the gap 18. The hinge is prevented from being deformed or broken. As a result, it is possible to open and close the door without hindrance even if the frame is deformed.

  4 and 5 show other embodiments. The stoppers are mainly different from those in the above embodiments, and the others are substantially the same as those in the above embodiments, and thus detailed description thereof will be omitted. That is, in this embodiment, instead of the retaining ring 16, the guide pipes 20 are inserted along the inner circumferences of the pipe parts 5 and 6 from the upper end of the pipe part 5 of the lower blade 1 and the lower end of the pipe part 6 of the upper blade 2, respectively. The guide pipe 20 is fixed to the tube portion of each blade, and the insertion end functions as the stopper 15. The guide pipe 20 is composed of a metal pipe or a synthetic resin pipe, and is fixed to the pipe portion by welding, an adhesive or the like. Since the shaft 9 is in sliding contact with the inner surface of the guide pipe 20, the hinge can be opened and closed smoothly. Can be.

DESCRIPTION OF SYMBOLS 1 Lower blade 2 Upper blade 3, 4 Blade plate 5, 6 Pipe part 9 Shaft 10 Star 13 Washer 15 Stopper 16 Stop ring 17 Compression coil spring 18 Gap (compression allowance)
19 Cosmetic ring 20 Guide pipe

Claims (7)

  It has a lower blade and an upper blade that are wound around the side edge of the blade plate to form a tube portion of the same width as the blade plate, and is provided with a shaft that communicates with the tube portion of each blade and can move up and down relatively and rotate. The pipe ends of each blade are closed with a star, and a washer is slidably inserted into the pipe so as to abut against both ends of the shaft, and the washer is applied to the pipe so as to limit the movement range of the washer. Provided a stopper to contact, and a compression coil spring was inserted between the washer and the star so as to urge the washer in the stopper direction to form a gap between the lower blade and the upper blade, and the shaft was connected to one washer. Anti-seismic hinge characterized by   The anti-seismic hinge according to claim 1, wherein the shaft inserted into the tube portion of the lower blade has a connecting portion at a lower end, and the washer is fixed to the connecting portion.   The anti-seismic hinge according to claim 1 or 2, wherein the stopper is a retaining ring fitted in an annular groove formed on the inner surface of the pipe portion.   The guide pipe is inserted along the inner periphery of the pipe section from the upper end of the pipe section of the lower blade and the lower end of the pipe section of the upper blade, the guide pipe is fixed to each blade, and the insertion end is used as a stopper. The anti-seismic hinge according to Item 2.   The anti-seismic hinge according to any one of claims 1 to 4, wherein a substantially cylindrical decorative ring is provided between tube portions of the upper blade and the lower blade.   The fitting between the upper blade and the shaft is a clearance fit that allows the shaft and the upper blade to rotate freely. The fitting between the lower blade and the shaft normally restricts the relative movement of the lower blade and the shaft, and The anti-seismic hinge according to any one of claims 1 to 5, wherein when a deformation load is applied, the shaft and the lower blade are intermediate fittings that are relatively movable in the axial direction along the pipe portion.   A door device comprising the anti-seismic hinge according to any one of claims 1 to 6.

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