JPS6120233Y2 - - 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 when the door body was opened and closed, resulting in inconvenient phenomena such as interfering with the opening and closing function.

The purpose of the present invention is to eliminate the above-mentioned defects by simply providing a door structure that is extremely robust and reduces distortions caused during manufacturing and when the door is opened and closed. be.

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

Reference numeral 1 denotes a door body, which consists of a metal reinforcing frame body 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 are horizontal bottom plate portions 4a and 5, respectively.
5a, in front of the bottom plate parts 4a, 5a,
At both rear edges, for the bottom plate part 4a of the upper horizontal frame 4,
Front and rear vertical parts 4b and 4c standing vertically upward
However, front and rear vertical parts 5b and 5c are respectively provided on the bottom plate part 5a of the lower horizontal frame 5 and stand vertically downward, and the front and rear vertical parts 5b and 5c stand vertically downward.
The rear vertical portions 4b, 4c or 5b, 5c provide an upward or downward U-shaped cross section.
Further, the left and right vertical frames 6, 7 have rear plate portions 6a, 7.
a, it has inclined plate parts 6b, 7b, and a pair of lateral extending parts 8, 8 are formed extending outward from the inclined plate parts 6b, 7b, respectively. On the other hand, as is clear from FIG. 1 or FIG. 3, the surface material 3 surrounds the reinforcing frame material 2 in a U-shape when viewed from above, with two opposing left and right edges. A rectangular outer plate 12 that forms the upright pieces 10 and 11 in an upright manner.
and inwardly bent edges 13 and 14 provided at the tips of the upright pieces 10 and 11 of the outer surface plate 12 and opposite to the lateral extensions 8 and 8 of the reinforcing frame member 2.

The lateral extending portions 8, 8 of the reinforcing frame material 2 have straight tapered shapes that gradually become thinner toward the tip (rear end in FIG. 1) as shown in FIGS. 5 and 8, respectively. A plurality of engaging protrusions 15a are provided at predetermined intervals to facilitate insertion. Further, each of the engaging protrusions 1 is provided on the inwardly bent edges 13 and 14 of the surface material 3, respectively.
An engagement hole 16a opposite to 5a is bored,
The engagement protrusion 15a of the reinforcing frame material 2 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. The surface material 3 and the reinforcing frame material 2 are joined to each other by these paired locking portions 17a, and
In the joined state of the surface material 3 and the reinforcing frame material 2, spot welding 9 is performed with appropriate spacing from each other so that they are fixed integrally. for example,
In this embodiment, as shown in FIG.
and the rear plates 6a, 7a of the left and right vertical frames 6, 7.
each rear surface of and the outer surface plate 1 of the facing material 3 facing this
The reinforcing frame material 2 and the surface material 3 are integrally fixed by spot welding 9 to the flat inner wall portions of the reinforcing frame material 2 at appropriate intervals.

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, reference numerals 9 denote side edges 18a and 19a that stand up along the outer surface material 12 of the surface material 3 and the front vertical portions 4b and 5b of the upper and lower horizontal frames 4 and 5 from the outside. The side edges 18a, 19a of these cover plates 18, 19 fit the upper and lower edges of the surface material 3 and reinforcing frame material 2.

At appropriate locations on the inner surface of each of the lid plates 18 and 19,
a boss portion 21 having female thread portions 20, 20 in the center;
21 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 threaded portions 20,
20, and screw the cover plates 18 and 19 onto the reinforcing frame material 2.
be integrally fixed to.

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
, a hinge shaft (not shown) that projects vertically downward from the part to which the door body is attached (not shown) is inserted, and a boss is also provided on the outer surface of the cover plate 18 opposite to this mounting hole 27. The portion 28 is provided in a protruding manner, and an insertion hole 29 passing through the axial center portion of the boss portion 28 is provided. Therefore, the door body 1 can be rotatably attached to a door body attachment part (not shown) via the hinge shaft (not shown) inserted through the insertion hole 29 and the attachment hole 27. Note that the cylindrical portion 26 referred to here does not have to have a shape with a completely closed peripheral wall, but is formed by bending with a gap to the extent that the hinge shaft (not shown) cannot be disengaged from the fitting. Including things.

Next, as is clear from FIGS. 1 to 3 and FIGS. 6 and 7, 30 is a handle of the door body 1, and this handle 30 is convenient for opening and closing the door body 1. As such, the surface material 3 on the opposite side to the cylindrical portion 26 is fixed at a proper position using suitable means such as screws 31.

To explain this configuration in detail, the screw 31, the insertion member 3
2. Finger locking member 33 and insertion member 32
has a recessed portion 35 inserted into the window 34 of the surface material 3, and a fitting portion 36 into which the surface material 3 is fitted is provided on the upper surface of the upper wall thereof. Further, the front surface of the insertion member 32 has a groove 37 into which the finger locking member 33 is fitted, and a protruding stepped portion 39 which fits into a groove 38 provided in the finger locking member 33 is provided therein; The protruding step portion 39 is provided with a hole 41 into which a screw hole boss portion 40 provided on the finger locking member 33 is fitted. The upwardly protruding portion 42 of the finger locking member 33 is a portion on which a finger is hooked when opening and closing the door. 43 is a hole through which the screw 31 is inserted. 44 is a screw hole into which the screw 31 is screwed.

In this installation, the recessed part 35 of the insertion member 33 is inserted into the window 34 of the facing material 3, and the fitting part 36 is inserted into the facing material 3.
By fitting the finger locking member 33 into the groove 37 of the insertion member 32 and screwing the screw 31 into the screw hole 44 of the finger locking member 33, the handle 30
Attach to surface material 3.

With the above configuration, the handle 30 is attached to the surface material 3.
It is securely and easily fixed to the surface, and there are no screws on the surface, so it has a good design.

As in the present embodiment, the surface material 3 is made of a thin metal plate, but this may be a decorative board made of wood or a non-metallic material such as plastic, or the periphery of the surface material 3 may be made of metal and the inner side of the material may be made of metal. Alternatively, a decorative board made of non-metallic material such as wood or plastic may be used, but when the surface material is made of sheet metal as in this embodiment, the thickness of the surface material 3 can be made extremely thin. Furthermore, if the radius of curvature of the upright pieces 10 and 11 at the ends is increased, deformation due to springback phenomenon is likely to occur, and errors in bending process also increase, but this deformation can be corrected by engaging the reinforcing member. Therefore, any curvature can be adopted. It also corrects all distortions caused by stacking products during the manufacturing process, making it possible to drill holes or maintain accurate hole positions, and to easily prevent misalignment with respect to the reinforcing frame material 2 before assembly by spot welding, etc. Since the door body can be modified to have good dimensional accuracy, it is effective for mass production of storage boxes, etc. In addition, the reinforcing frame material 2 and the surface material 3 are fixed by spot welding 9 at appropriate intervals and the upper and lower lids 18 and 1.
This is done by fitting and attaching the parts 9 to 9, but this spot welding 9... is enough to fix the parts without it.In this case, a painted steel plate can be used as the surface material, and it is better than the one that is painted afterward. It also reduces manufacturing costs. Furthermore, when using a painted steel plate, screws may be secured in place without welding.

The above has shown one embodiment of the present invention, but the locking part 1 shown in FIGS. 5 and 8
Instead of 7a, a locking portion as shown in FIG. 9 or 10 may be used. That is, the locking portion 17b in the second embodiment shown in FIG.
5b is formed into a hook shape, and this hook-shaped engagement protrusion 15b is connected to the inner bent edge 13, 1 of the surface material 3.
4, and is engaged with an engagement hole 16b that pairs with the engagement protrusion 15b. Note that the engagement relationship between the pair of engagement protrusions 15b and the engagement holes 16b is reversed, and the engagement protrusions 15b are attached to the surface material 3.
Of course, it is also possible to provide the engagement holes 16b in the reinforcing frame material 2, respectively.

Locking portion 17 in the third embodiment shown in FIG.
c has an L-shaped engagement protrusion 15c protrudingly provided on one of the lateral extensions 8, 8 of the reinforcing frame material 2 or the inwardly bent edges 13, 14 of the surface material 3, and the engagement protrusion 15c on the other side. A U-shaped engagement protrusion 16c that can be engaged with the reinforcing frame material 2 and the surface material 3 is provided in a protruding manner. It becomes possible to join with

As mentioned above, the structure of the door body in this invention is as follows.
The upper and lower horizontal frames and the left and right vertical frames are formed into a rectangular frame, and at least one of the upper and lower horizontal frames and the left and right vertical frames has a pair of lateral extensions extending to both sides. A metal reinforcing frame material and a U-shaped outer plate having upright pieces formed at the ends of at least two opposing sides so as to surround the reinforcing frame material, and a side plate on the side of the reinforcing frame material is attached to the tip of the upright piece. Since it is formed from a surface material with an inwardly bent edge placed opposite the outwardly extending part, it is possible to create a sturdy door body that maintains sufficient strength, and reduces the distortion that occurs when the door body is opened and closed. , the door body can be opened and closed extremely smoothly. Further, a plurality of pairs of locking portions that can be engaged with each other are provided at appropriate positions on the side extending portion of the reinforcing frame material and the inwardly bent edge of the surface material, and the joints are joined by each pair of locking portions. Since the surface material and the reinforcing frame material are integrally fixed, the relative positions of the reinforcing frame material 2 and the surface material 3 can be determined accurately, and it is possible to easily fix the two together. I can do it,
This has the effect of making the door body even stronger and less distorted.

[Brief explanation of the drawing]

1 to 8 show one embodiment of the present invention, in which FIG. 1 is an overall perspective view showing an assembled state, FIG. 2 is a front view, FIG. 3 is a plan view of FIG. 2,
Figure 4 shows the arrow in Figure 1 after installing the cover plate.
FIG. 5 is a cross-sectional plan view seen from the direction of the arrow in FIG. 2, FIG. 6 is an exploded perspective view of the handle portion attached to the surface material,
7 is a vertical side view seen from the direction of the arrow in FIG. 6, FIG. 8 is a vertical side view showing the engaged state of the locking portion, and FIG. 9 is a vertical cross-section corresponding to FIG. 8 in the second embodiment. The side view, FIG. 10, is a longitudinal sectional side view corresponding to FIG. 8 in the third embodiment. 1... Door body, 2... Reinforcement frame material, 3... Surface material,
4, 5...Top, bottom horizontal frame, 6,7...Left, right vertical frame,
8... Lateral extension portion, 10, 11... Upright piece, 12
... External plate, 13, 14 ... Inner bent edge, 17
a, 17b, 17c...Locking portion.

Claims (1)

[Scope of utility model registration request] The upper and lower horizontal frames and the left and right vertical frames are formed into a rectangular frame, and at least one of the upper and lower horizontal frames and the left and right vertical frames has a pair of lateral extensions extending to both sides. A metal reinforcing frame material and a U-shaped outer plate having upright pieces formed at the ends of at least two opposing sides so as to surround this reinforcing frame material, are attached to the ends of the upright pieces on the sides of the reinforcing frame material. a pair of locking parts that can be engaged with each other at appropriate positions on the sideward extending part of the reinforcing frame material and the inwardly bent edge of the facing material; 1. A structure of a door body, characterized in that a surface material and a reinforcing frame material are integrally fixed, which are provided at a plurality of locations, and are joined by each pair of locking portions.