JPS6120234Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to the structure of a door body such as a revolving door or a sliding door.

Conventionally, this type of door body has been widely used for telephone stands with storage shelves, lockers, kitchen utensil storage boxes, etc., but most of them are made by bending a single plate such as a thin metal plate. Because of this, it was not possible to maintain sufficient strength, and deformation occurred during manufacturing, and distortion occurred easily when the door body was opened and closed.

In addition, the hinge part of the door body is subjected to particularly strong repeated stress, and the wear and tear on this hinge part increases significantly as the door body opens and closes. Mounting holes were provided in the upper and lower horizontal plates of the door body made of a single sheet of thin steel, and the hinge shaft protruding from the attached part of the door body was inserted into these holes. The parts were easily damaged, showed significant wear and distortion, and had defects such as rattling when the door was opened and closed.

In order to eliminate the above-mentioned defects, the present invention aims to be robust, reduce the distortion caused by opening and closing the door body, and avoid wear and damage to the hinge part of the door body. The purpose is to provide a simple structure for the door body.

Hereinafter, one embodiment of the present invention will be specifically described based on the drawings.

Reference numeral 1 denotes a door body, which is composed of a metal reinforcing frame material 2 and a surface material 3.

As is clear from FIG. 1, the reinforcing frame material 2 is formed into a rectangular frame with upper and lower horizontal frames 4 and 5 horizontal to the left and right directions, and perpendicular to the upper and lower horizontal frames 4 and 5. The upper and lower horizontal frames 4 and 5 each have an upwardly or downwardly U-shaped cross section, respectively. That is, these upper and lower horizontal frames 4 and 5 each have a horizontal bottom plate portion 4.
a, 5a, and on both the front and rear edges of the bottom plate parts 4a, 5a, there are front and rear vertical parts 4b, which stand vertically upward relative to the bottom plate part 4a of the upper horizontal frame 4.
4c, and for the bottom plate portion 5a of the lower horizontal frame 5,
Front and rear vertical parts 5b and 5c standing vertically downward
are respectively erected, and exhibit an upward or downward U-shaped cross section by the bottom plate portions 4a, 5a and the front and rear vertical portions 4b, 4c or 5b, 5c. Further, the left and right vertical frames 6, 7 are provided with a rear plate portion 6a,
7a, inclined plate parts 6b, 7b, and a pair of lateral extending parts 8, 8 extending outward from the inclined plate parts 6b, 7b, respectively. on the other hand,
As is clear from FIG. 1 or 3, the surface material 3 is erected by the opposing left and right edges so as to surround the reinforcing frame material 2 in a U-shape when viewed from above. Rectangular outer plate 1 on which the pieces 10 and 11 are formed upright
2, and inwardly bent edges 13, 14 provided at the tips of the upright pieces 10, 11 of the outer surface plate 12 opposite to the lateral extensions 8, 8 of the reinforcing frame material 2.

The lateral extensions 8, 8 of the reinforcing frame material 2 are each formed into a straight tapered shape that gradually becomes thinner toward the tip (rear end in FIG. 1) as shown in FIG. 5, so as to facilitate insertion. A plurality of engagement protrusions 15a are provided at predetermined intervals to protrude. Moreover, the inner bent edges 13 and 14 of the surface material 3
Engagement holes 16a are bored in each of the reinforcing frame members 2 and 16a, respectively, to face each of the engagement protrusions 15a.
The engagement protrusion 15a and the engagement hole 16a of the surface material 3 each form a pair of locking portions 17a that can be engaged with each other. These pairs of locking portions 17a allow the surface material 3 and the reinforcing frame material 2 to
are joined to each other, and in the joined state of the surface material 3 and the reinforcing frame material 2, spot welding 9 is performed at an appropriate distance from each other and fixed as a pair. For example, in this embodiment, as shown in FIG. Spot welding 9 is performed at appropriate intervals between the rear surfaces of the portions 6a and 7a and the inner wall flat portion of the outer surface plate 12 of the surface material 3 facing thereto,
These reinforcing frame material 2 and surface material 3 are integrally fixed.

18 and 19 are a pair of lid plates disposed opposite to each other from the upper and lower outer sides of the upper and lower ends of the surface material 3;
These cover plates 18 and 19 are made of a soft non-metallic material such as wood or plastic, and are formed in a shape that follows the edges of both the upper and lower ends of the surface material 3, respectively. That is, the lid plate 18,1
As shown in FIGS. 3 and 4, 9 is a side edge 18a, 19a that stands up along the outer surface plate 12 of the surface material 3 and the front vertical portions 4b, 5b of the upper and lower horizontal frames 4, 5 from the outside. The side edges 18a, 19a of these cover plates 18, 19 are fitted with both upper and lower edges of the surface plate 3 and reinforcing frame material 2.

Boss portions 21 and 2 having internally threaded portions 20 and 20 at the center are provided at appropriate positions on the inner surfaces of the lid plates 18 and 19, respectively.
1 are provided protrudingly, and the upper and lower horizontal frames 4,
The bottom plates 4a, 5a of 5 are provided with through holes 22, 22 opposite to the female threads 20, 20 of the cover plates 18, 19, through which bolts, etc. After passing the fixing material 23 through the through hole 22, the female screw portions 20, 2 of the cover plates 18, 19 are inserted.
0 to integrally fix the cover plates 18 and 19 to the reinforcing member 2.

At one of the left and right side edges of the upper and lower horizontal frames 4 and 5 (in this embodiment, the left side edge as shown in FIGS. 1 to 3),
An extending portion 24 is formed in the lower horizontal frames 4, 5 and extends in the longitudinal direction (leftward in this embodiment). The extension portion 24 has the same width in the vertical direction as the front vertical portions 4b, 5b of the upper and lower horizontal frames 4, 5, and is an extension of the front vertical portions 4b, 5b. If necessary, it may be extended along with the bottom plates 4a and 5a to maintain sufficient strength, and the vertical width of the extended portion 24 may be made smaller than the front vertical portions 4b and 5b for strength or processing reasons. It can be made larger or smaller as needed. The tip of the extending portion 24 is bent into a small cylindrical shape to form a cylindrical portion 26.
A vertical mounting hole 27 of an appropriate length is formed at the axial center of the shaft 6. Attachment hole 27 of this cylindrical part 26
In this case, a hinge shaft 25a that projects vertically downward or vertically upward is inserted from the door body attachment part 25, and a boss part 28 is also formed on the outer surface of the cover plate 18 opposite to this mounting hole 27. An insertion hole 29 is provided to protrude and pass through the axial center of the boss portion 28 . The boss portion 28 is provided to prevent the upper and lower surfaces of the door body 1 from coming into contact with the door body attached portion 25 during opening and closing. Further, the diameter of the insertion hole 29 is slightly larger than the diameter of the attachment hole 27 of the cylindrical portion 26. Therefore, the door body 1 can be rotatably attached to the door body attachment portion 25 via the hinge shaft 25a inserted through the insertion hole 29 and the attachment hole 27. Note that the cylindrical portion 26 mentioned herein does not have to have a shape with a completely closed peripheral wall, but also includes one that is bent with a gap to the extent that the hinge shaft 25a cannot be disengaged from the fitting.

Next, as shown in Figures 1 to 3, 30
is a handle of the door body 1, and this handle 30 is provided with a screw 31 or other appropriate means at a suitable position on the surface material 3 on the opposite side to the cylindrical portion 26, so as to conveniently open and close the door body 1. But it gets stuck. Next, another embodiment of the hinge portion will be described based on FIG. 7.

A boss portion 32 is provided on the back surface of the lid body 18', 19',
A cylindrical portion 26' having the same structure as in the first embodiment is fitted into the boss portion 32. The boss portion 32 is provided with a mounting hole 33 into which the hinge shaft 25'a is inserted vertically downward or vertically upward from the door mounting portion 25'. In this way, positioning becomes reliable.

As mentioned above, the structure of the door body in this invention is as follows:
It consists of a metal reinforcing frame material in which the upper and lower horizontal frames and the left and right vertical frames are framed in a rectangular shape, and a surface material that is attached to this reinforcing frame material. At one side end, an extension part is formed on the upper and lower horizontal frames that extends in the longitudinal direction and has a width in the vertical direction, and on the tip side of this extension part,
A vertical cylindrical part with a mounting hole of an appropriate length is bent and formed, and the hinge shaft protruding from the part to which the door body is attached is inserted into the mounting hole of this cylindrical part, making it extremely simple. With this structure, a strong door body can be obtained that prevents wear and damage to the hinge part, and the hinge part of the door body can be manufactured very easily, and its lifespan can be maintained for a long time.

[Brief explanation of the drawing]

1 to 6 show an embodiment of the present invention, in which FIG. 1 is an overall perspective view showing an assembled state, FIG. 2 is a front view, and FIG. 3 is a plan view of FIG.
Figure 4 shows the arrow in Figure 1 after installing the cover plate.
5 is a cross-sectional plan view seen from the arrow direction in FIG. 2, FIG. 6 is an end view taken from the arrow direction in FIG. 3, and FIG. 7 is a cross-sectional view in another embodiment. This is a drawing equivalent to Figure 6. 1... Door body, 2... Reinforcement frame material, 3... Surface material,
4, 5... Upper and lower horizontal frames, 6, 7... Left and right vertical frames, 24... Extension part, 25... Gate body attached part, 2
5a...Hinge portion, 26...Cylindrical portion, 27...Mounting hole.

Claims (1)

[Scope of utility model registration request] It consists of a metal reinforcing frame material in which the upper and lower horizontal frames and the left and right vertical frames are framed in a rectangular shape, and a surface material attached to this reinforcing frame material, and the left and right vertical frames of the upper and lower horizontal frames,
At one of the right side ends, an extension part is formed on the upper and lower horizontal frames that extends in the longitudinal direction and has a width in the vertical direction, and on the tip side of this extension part, an extension part of an appropriate length is formed. A door body characterized in that a vertical cylindrical part having a mounting hole is bent, and a hinge shaft protruding from a part to which the door body is attached is inserted into the mounting hole of the cylindrical part. structure.