JPS6012077Y2 - door structure - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to the structure of a door, and particularly to the structure for processing the door next week.

Conventionally, as shown in FIG. 5, an edge C made of, for example, a stainless steel plate formed into a U-shape was placed on the bottom B side of the lightweight layer A next week.

However, some people dislike this edge.

The present invention was devised to deal with the case where such edge C is omitted, and aims to provide a simple assembly structure for the door side of door A and a clean design. Embodiments will now be described with reference to the accompanying drawings.

In Fig. 1, reference numerals 1 and 2 are the back plate and front plate of the door, and bent portions 5a and 6a are provided at both ends of each side, leaving the side pieces 11 and folded inward, and furthermore, these bent portions are provided with rivets. Alternatively, a hole 5°6 is drilled through which a fixing device such as a screw can be inserted.

3 is the core material of the door, for example, honeycomb material is used.

Reference numeral 4 denotes a hole for inserting a fastener provided on both sides of the back plate 1, and has a larger diameter than the fastener insertion hole 5.

Fastener insertion hole 6 bored in the inner bent portion 6a of the surface plate 2
has the same diameter as the fastener insertion hole 5.

The fixing device insertion hole 4 and the fixing device insertion hole 5.about.6 are concentrically drilled and are also drilled at a constant pitch in the vertical direction.

To assemble the door A, the core material 3 is filled between the front and back plates 2 and 1, and the inner bent parts 5a and 6a are aligned.

Insert the fastening tool through the fastening tool insertion hole 4, and
a and 6a are brought into close contact with each other and fixed with rivets, screws, etc.

Thereafter, the hole 4 for inserting the fixing device is closed with the door stop member 8, and the process is completed.

Perform the same operation on each tightening section.

Note that since the door stop member 8 is placed on the inside of the door, it is not visible from the outside when the door is closed.

In Fig. 3, the reinforcing angle 9 is applied along the inner bent portion to reinforce the inner bent portions 5a and 6a, and the screws 7a are tightened.This reduces the number of tightening screws 7a. Can be done.

In the case of FIG. 4, the inner bent portion can be fixed at a position close to the hole 4 for inserting the fastening tool, thereby making it easier to tighten the tightening screw 7a.

That is, the back plate 1 and the front plate 2 are constructed separately, and the tightening portion is located close to the hole 4 for inserting the fastener.

Similar to the example shown in FIG. 3, this part is reinforced using reinforcing angles 9 to reduce the number of tightening screws.

10 is a door frame. According to the present invention, (1) unlike conventional doors, there is no need for separately molded edge members such as stainless steel, so it is economical;

(2) Or, since no welding process is employed, there is an advantage that a decorative steel plate can be employed as the surface plate.

(3) Since mechanical fastening such as rivets and screws is used, it can be used as a fireproof and fireproof door.

(4) By using reinforcing angles, the number of tightening screws in the tightening part can be reduced, and the gap in the joint part can be made small and uniform.

(5) is convenient because the fixing device insertion hole can also be used as the mounting hole for the door stop member.

[Brief explanation of drawings]

Figure 1 is a cross-sectional view of the door according to the present invention before assembly, Figure 2 is a partial cross-sectional view after tightening, Figure 3 is another embodiment (cross-sectional view) of the tightening part, and Figure 4 is a cross-sectional view of the door according to the present invention before assembly. The figure shows yet another embodiment (cross-sectional view), and FIG. 5 is a cross-sectional view of a conventional edged door. In the figure, A...Door, B...Koguchi (of the door), 1...Back plate, 2...Front plate, 3... ... Core material, 4 ... (for fastening tool insertion) hole, 5, 6 ... ... fastening tool insertion hole, 5a, 6a
...Inner bent part, 7...Rivet, 7
a...Tightening screw, 8...Door stop member,
9... Reinforcement angle, 10...
・Door frame, 11...side piece.

Claims (1)

[Scope of utility model registration request] The back plate and the front plate, which face each other at a predetermined distance, are provided with bent portions that are folded back inward, leaving side pieces on both side edges, and the portions facing the bent portions of the back plate are provided with bent portions. The structure of the door is characterized in that a hole is formed for inserting a fixing device to tightly fix both bent portions of the front and back plates, and the hole for inserting the fixing device is closed with a door stop member.