JPH078772Y2 - Door - Google Patents

Description

[Detailed description of the device]

[0001]

[Industrial application] The present invention relates to an entrance door.

[0002]

2. Description of the Related Art Conventional entrance doors have been developed in which a door body is pivotally supported on a door frame so that the door body can be opened and closed, and an opening provided at a central portion of the door body is fitted with a lattice window and a closing door. However, there is a gap between the outer circumference of the closed door and the inner circumference of the opening,
Since air inside and outside the door communicates through this gap, there is a problem in fire resistance or fire resistance, and pests easily enter from the lattice window, and the lattice window is weak in strength and easily damaged, and bandits enter. There is a safety problem that it is easy.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to obtain an entrance door with a lattice window that is rich in fire resistance or fire protection, has high strength, is highly safe, and is insect-proof.

[0004]

Means for Solving the Problems In order to achieve the above-mentioned object, the present invention is an entrance door in which a door frame is pivotally supported by an openable and closable door body, and a vertical horizontal frame and a horizontal vertical frame are provided at the center of the door body. A surrounding opening is formed, a lattice window is attached to the front side inner peripheral surface of the frame, and a back side closing door of the opening is pivotably supported on the main body so that the main body of the closing door can be opened and closed. A flange provided on the outer periphery of the back surface of the closing door is opposed to the back surface of the door body, and a reinforcing plate placed in the middle of the opening is erected on the left and right vertical frames. A door having an insect screen stretched on the back surface of the lattice window is constituted by the door described in the above invention in which the back surface of the closing door is formed of a mirror.

[0005]

[Function] Therefore, the handle 15 of the door body 2 stands in front of the entrance.
When gripping and pulling toward the front, the door main body 2 is opened toward the front around the pivot portion 3 and can enter the inside of the entrance.

When the handle 16 of the closing door 10 is grasped from the inside with the door body 2 closed and pulled toward the front, the closing door 10 is opened inside the entrance centering on the pivot 4 and the lattice window 9 is formed.
The outside can be seen through the insect screen 13.

When the closing door 10 is closed, the closing door 1
No. 0 outer peripheral flange 11 is in close contact with the back surface of the door main body 2 so that the outer peripheral portion of the closed door 10 and the inner peripheral portion of the opening 7 are not closed by the close contact of the flange 11 and the flange 11 is Ventilation is eliminated by hitting the back of 2 and fire resistance or fire protection is added.

Further, when the closing door 10 is opened inward, insect pests are prevented from entering due to the insect net 13, and the lattice window 9 is reinforced by the reinforcing plate 12 installed between the left and right vertical frames 6 and 6. It

[0009]

[Example] A door frame 1 is fixed to the entrance of a house, and the door frame 1
The door body 2 is pivotally supported 3 so as to be openable and closable to form an entrance door. The door body 2 is opened outward around the pivotal support portion 3 and is in contact with the door contact 17 to be held in a closed state.

The door frame 1 is provided at the center of the door body 2.
1 is formed on the inner peripheral surface 8 on the front side of the frames 5, 5 and 6, 6 which are formed with the upper and lower horizontal frames 5 and 5 and the left and right vertical frames 6 and 6 which are parallel to the inner peripheral surface of the frame. Lattice window 9 as shown in
Attach and fix.

The closing door 10 on the rear side of the opening 7 is provided.
Is rotatably and rotatably pivoted to the door body 2, and the main body 10 'of the closing door 10 is inserted and fitted inside the frames 5, 5, 6 and 6, and the entire rear surface of the closing door 10 is provided. The mirror 14
And the flange 11 provided on the outer periphery of the back surface is closely attached to the back surface of the door body 2.

Further, a reinforcing plate 12 is arranged in the middle of the opening 7, fixed to the left and right vertical frames 6 and 6 and a lattice window 9 is welded and fixed to the reinforcing plate 12 to form the lattice window. An insect screen 13 is stretched on the back surface of the sheet 9.

Reference numeral 18 in the drawing denotes a post hole provided in the center of the reinforcing plate 12, 19 denotes an opening / closing lid for the post hole 18, and 20.
Is a support arm of the closed door 10, 21 is an inner knob of the door body 2, 22 is an inner lock, 23 is the outer periphery of the lattice window 9 and the door body 2
The metal molding 9'connecting with and 9'is a grid plate of the grid window 9 and may be a bent grid plate of various shapes other than that shown in FIG.

[0014]

Since the present invention is constructed as described above, a wide lattice window 9 can be provided in the door body 2 of the entrance door.
Despite the wide lattice window 9, the outer peripheral flange 11 of the closing door 10 that closes the portion of the lattice window 9 can be brought into close contact with the back surface of the door main body 2 to tightly seal the lattice window 9 and have a high fire resistance or fire resistance. Thus, the strength of the lattice window 9 is strengthened by the reinforcing plate 12 and is insect-proofed by the insect net 13, so that an entrance door with a lattice window can be obtained in which pests do not enter.

There is a benefit that the mirror 14 on the back side of the closing door 10 allows one to dress himself just before seeing a visitor outside the front door.

[Brief description of drawings]

FIG. 1 is a front view showing a door of the present invention.

FIG. 2 is a rear view of the door.

FIG. 3 is a right side view.

FIG. 4 is a plan view.

FIG. 5 is a bottom view.

FIG. 6 is a left side view.

FIG. 7 is a perspective view showing a state in which a closing door is opened.

FIG. 8 is a cross-sectional plan view taken along the line AA of FIG.

FIG. 9 is an enlarged vertical sectional view taken along the line BB of FIG.

[Explanation of symbols]

 1 Door Frame 2 Door Main Body 3, 4 Pivot Supports 5 Vertical Horizontal Frames 6 Horizontal Horizontal Frames 7 Openings 8 Front Side Inner Surface (Fig. 8) 9 Lattice Windows 10 Back Side Closed Doors 10 'Main Body 11 Flange 12 Reinforcement Plate 13 Insect Control Net 14 mirror

Claims (2)

[Scope of utility model registration request] 1. An entrance door having a door frame pivotally supporting an openable and closable door body, wherein an opening surrounded by an upper and lower horizontal frame and a left and right vertical frame is formed in a central portion of the door body, and a front surface of the frame is formed. A lattice window is attached to the inner side surface, and a back side closing door of the opening is pivotally supported on the main body so as to be openable and closable, the main body of the closing door is inserted inside the frame, and A flange provided on the outer periphery of the back face is opposed to the back face of the door body, and a reinforcing plate placed in the middle of the opening is erected on the left and right vertical frames, and an insect screen is stretched on the back side of the lattice window. Become a door. 2. The door according to claim 1, wherein the back surface of the closed door is formed of a mirror.