JPS6229576Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to an improvement of a metal ventilation door suitable for folding doors, single-single doors, etc.

BACKGROUND ART Conventionally, metal doors of various structures have been used, which are made by bending a metal plate and attaching vertical and horizontal frames and reinforcing frames to the bent metal plate. However, these conventional metal doors are undesirable because the rivet heads for fixing the frame are exposed, degrading the appearance, or they lack strength, making them impractical.

For this reason, the present inventor first devised a metal door that was superior in terms of design and had sufficient strength.
No. 27310), but because the structure of this metal door does not allow louvers to be cut into the flat plate, it could not be used as is to construct a ventilation door with louvers.

The present invention improves the structure of the metal door according to the previous invention and provides a metal ventilation door that is superior in design and has a louver provided on the flat plate part. .

Hereinafter, the present invention will be explained with reference to drawings showing embodiments.

FIG. 1 shows an exploded perspective view of the metal ventilation door of the present invention (for simplicity, the vertical direction is drawn shorter than the horizontal direction than it actually is). As shown in Fig. 3, a large number of louvers 1, which are long in the width direction and protrude toward the back side (towards the front in Fig. 1) and open upward, are arranged vertically except for the middle part in the vertical direction, and near the upper and lower, right and left ends. Both sides of the metal plate 2 are bent at right angles toward the rear surface, and the edges thereof are bent inward at right angles to form mounting edges 2a. An integrally extruded aluminum material is used for the reinforcing materials 3 that are fixed to the upper and lower edges of the metal plate 2 and constitute the upper and lower frames of the door. The cross-sectional shape of the reinforcing material 3 is approximately H-shaped as shown in FIGS. ) has a U-shaped hook portion 3b facing outward.
is formed. Furthermore, small holes 4, 4 through which rivets for fixing the metal plate 2 are inserted are bored at both left and right ends of the inner side 3c. The two sides 3a and 3c are connected by a flat plate portion 3d. Reference numeral 5 denotes a column that connects one end of the upper and lower reinforcing members 3, 3 to form a U-shaped support frame, supports the metal plate 2 together with the reinforcing members 3, 3, and is attached to the upper and lower ends of the pipe 6 having a rectangular cross section. Mounting plates 7, 7 larger than the cross section of the pipe 6 are fixed. The depth D (Fig. 1) of the mounting plates 7, 7 is the same as or slightly narrower than the distance W between the sides 3a, 3c of the reinforcing material 3 (width of the horizontal portion 3d). It is arranged to be superimposed on the horizontal portion 3d of the reinforcing material 3. Also, the mounting plate 7
The opposite side of the metal plate 2 and the center of the metal plate 2 protrude slightly from the pipe 6. For such a mounting plate 7, attach the mounting plate 7 to the horizontal part 3d of the reinforcing member 3.
Holes 8, 8 are drilled through which blind rivets are inserted for fixing to the ends of. Next, FIG. 2 shows a reinforcing plate 9 for connecting the vertical intermediate portions of the left and right mounting edges 2a, 2a of the metal plate 2 to improve the strength of the metal plate 2 as a whole. This reinforcing plate 9 has inverted U-shaped ridges 9b, 9b formed on both widthwise edges of the flat plate portion 9a, and inverted L-shaped mounting pieces 9c, 9c formed on both longitudinal edges. There is. Flat plate portion 9a of these mounting pieces 9c, 9c
The rising height from the metal plate 2 is slightly lower than the height from the flat plate part 2b (Fig. 1) of the metal plate 2 to the mounting edge 2a (the sum of the thickness of the flat plate part 9a and the thickness of the double-sided adhesive tape described later). degree.

Next, a procedure for assembling the metal ventilation door of the present invention in which each component is constructed as described above will be described.

First, both the upper and lower reinforcing members 3, 3 are attached to the metal plate 2 from above and below.
The hook portions 3b of each reinforcing member 3, 3 are brought close to the upper and lower edges of the
3b are engaged with both upper and lower edges of the metal plate 2. In this state, the mounting plates 7, 7 fixed to both the upper and lower ends of the support column 5 come into contact with the lower or upper surfaces of the horizontal parts 3d, 3d of the respective reinforcing members 3, 3, so that the mounting plates 7, 7 and the reinforcement Blind rivet 10, 10 with material 3, 3
(Fig. 5) to connect and fix. Along with this, small holes 11, 11 (Fig. 1) are formed at both the upper and lower ends of the left and right mounting edges 2a, 2a of the metal plate 2, and small holes are formed at both the left and right ends of the side 3c of each reinforcing member 3. 4,4
The metal plate 2 and the upper and lower reinforcing members 3 are joined by inserting rivets 12, 12 (which do not come out onto the surface of the door) and caulking them. Next, the reinforcing plate 9
One side of the double-sided adhesive tape is pasted on the surface (lower surface in FIG. 2) of the flat plate portion 9a of , as shown in FIGS. 4 and 5, the reinforcing plate 9 is attached to the flat plate part 2b of the metal plate using double-sided adhesive tape on the other side.
It is pasted on the part 13 without a louver at the vertically intermediate part of.

The support column 5 is located inside the bent mounting edge 2a of the metal plate 2, and the upper and lower parts are surrounded by the reinforcing material 3 and the mounting edge 2a, etc., and the middle part is surrounded by the mounting piece 9c of the reinforcing plate 9,
It will be in a state surrounded by the mounting edge 2a of the metal plate and the like. Although the metal plate 2 is slightly curved in order to cut and raise the louvers 1, 1, the reinforcing plate 9 can also be slightly curved to match this curve, so that this adhesion can be performed perfectly. In this state, small holes 14, 1 are drilled at the ends of the mounting pieces 9c, 9c formed on both edges of the reinforcing plate 9.
4 matches the small holes 15, 15 drilled in the mounting edges 2a, 2a of the metal plate 2, so blind rivets 18, 18 (Figs. 4 and 5) are inserted into both small holes 14, 15 for installation. Join the piece 9c and the mounting edge 2a,
The metal ventilation door is completed.

The illustrated example shows two metal ventilation doors of the present invention.
A folding door is formed by connecting two hinges 16, 16. In the figure, 17 is a torsion spring for preventing flapping, and neither of these is necessary when used for purposes other than folding doors.
Furthermore, when used in a door that opens and closes around the hinge 16, it is not necessarily necessary to provide the hinge 16 on the side of the support 5, and sufficient strength can be obtained even on the side without the support 5. However, if the hinge 16 is provided on the side of the support post 5, the moment of inertia during opening and closing will be smaller, so the door can be opened and closed with less force.

Since the metal ventilation door of the present invention is configured and assembled as described above, rivet heads etc. are not exposed on the surface, the appearance does not deteriorate, and assembly is easy. In addition, since the reinforcing plate 9 is attached to the middle part of the metal plate 2 using double-sided adhesive tape, not only does the strength of the metal plate improve, but even if an object hits the metal plate 2, the vibration of the double-sided adhesive tape can be prevented. The damping effect has the effect of suppressing loud noises.

[Brief explanation of the drawing]

The drawings all show embodiments of the present invention; Fig. 1 is an exploded perspective view seen from the back, Fig. 2 is a perspective view of a reinforcing plate, and Fig. 3 is a metal ventilation door constructed of the invention. FIG. 4 is an enlarged sectional view taken along the line AA in FIG. 3 with a portion omitted, and FIG. 5 is an enlarged sectional view taken along the line BB in FIG. 3. 1: Louver, 2: Metal plate, 2a: Mounting edge, 2
b: flat plate part, 3: reinforcing material, 3a: side, 3b: hook part, 3c: side, 3d: horizontal part, 4: small hole, 5: strut, 6: pipe, 7: mounting plate, 8: hole, 9: Reinforcement plate, 9a: Flat plate part, 9b: Ridge, 9c: Mounting piece, 10: Blind rivet, 11: Small hole, 1
2: Rivet, 13: Part, 14, 15: Small hole,
16: Hinge, 17: Torsion spring, 18: Blind rivet.

Claims (1)

[Scope of utility model registration request] The louvers 1, 1 protruding toward the back surface are connected to the flat plate portion 2b.
A large number of metal plates are formed except for the upper and lower, left and right ends and the middle part 13 in the vertical direction, and both sides are bent into an L-shape in the direction in which the louvers 1, 1 are cut and bent to form a mounting edge 2a. 2, the metal plate 2 has a length that is approximately the same as the width of the metal plate 2, has a roughly H-shaped cross section, and has a hook portion 3b that engages with the flat plate portion 2b of the metal plate 2 at one end of the outer side 3a. Then, the reinforcing material 3 formed by connecting the inner side 3c and the outer side 3a with the horizontal part 3d is inserted with its end between the mounting edge 2a and the flat plate part 2b, and the hook part 3b and the flat plate part are connected. 2b, and is attached to the upper and lower parts of the metal plate 2 by overlapping and bonding the mounting edge 2a and the inner side 3c, and has a mounting plate 7 having approximately the same width as the horizontal portion 3d of the reinforcing members 3, 3, 7 at both upper and lower ends of a pipe 6 having a rectangular cross section and having a length shorter by the thickness of both mounting plates 7, 7 than the distance between the horizontal parts 3d, 3d of both reinforcing members attached to the upper and lower ends of the metal plate 2. Attach and prop 5
, and the support column 5 is connected to one end of the horizontal parts 3d, 3d of the reinforcing material by means of mounting plates 7, 7 at the upper and lower ends,
Ridges 9b, 9b are formed on both side edges of the flat plate portion 9a,
The mounting piece 9c of the reinforcing plate 9, which has L-shaped mounting pieces 9c formed on both edges, surrounds the support 5 with the mounting edge 2a of the metal plate 2, and the bent end of the mounting piece 9c is attached to the metal plate 2. This metal ventilation door is attached to the mounting edge 2a, and the flat plate portion 9a of the reinforcing plate 9 is adhered to the intermediate portion 13 of the metal plate 2 with double-sided adhesive tape.