JPS6115167Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a device for preventing deflection of an overdoor installed at an entrance or exit of a building.

[Conventional technology]

Conventionally, this type of overdoor has, for example, vertical guide rails erected opposite each other at both ends of the entrance and exit, and a horizontal guide rail connected to the top of the opposing guide rails. A structure is adopted in which an over door is provided on the guide rail of the section via a guide roller so that it can be raised and lowered to open and close the entrance/exit.

[Problems to be Solved by the Invention] According to the above-mentioned conventional structure, when an entrance is blocked by an overdoor, the overdoor may bend inward into the building due to external pressure such as wind pressure. In such cases, a large gap is created between the top of the overdoor and the upper frame of the entrance, and outside air and dust may blow into the building through this gap.

There is also a structure in which a lintel seal is interposed between the upper frame and the top of the overdoor, but even with this structure, if the overdoor is bent, the lintel seal will be affected by external pressure such as wind pressure. The space between the upper body and the top of the over door may be opened and dust may be blown into the air.

Therefore, the present invention was developed in view of these points, and when the entrance is blocked by an overdoor, the intermediate upper part of the overdoor can be automatically locked to the upper frame of the entrance. The purpose is to prevent a large gap from forming between the upper structure of the entrance and the overdoor and the overdoor, even if the overdoor is subjected to external pressure such as wind pressure, and to prevent dust from blowing into the inside. be.

[Means for solving problems]

This invention installs a locking metal fitting with a locking piece projecting upward in the middle part of the upper body of the doorway, and
An overdoor that opens and closes the entrance is provided so as to be movable up and down, and a lock is provided at the middle upper part of the overdoor that locks into the locking piece of the locking fitting when the overdoor closes the entrance. An engagement fitting having a protruding joint piece is attached thereto, and a lintel seal is provided protruding from the inner lower end of the upper body to close the space between the door and the overdoor over its entire width direction.

[Effect]

The present invention is configured as described above, so that when the overdoor is pulled down when closing the entrance/exit, the engaging piece of the engaging fitting attached to the middle upper part of the overdoor is connected to the engaging fitting of the upper body. It is automatically locked to the locking piece. As a result, the upper body of the entrance and the upper part of the overdoor are engaged and locked, and a distance is maintained between them so that they do not open, and the space between them is always closed by the lintel seal.

〔Example〕

An embodiment of the present invention will be described based on the drawings.

In the figure, reference numeral 1 denotes an upper body provided above the entrance/exit 2. A lintel 3 is fixed to the entire length of the inner lower end of the upper body 1, and a narrow plate-shaped lintel is attached to the lower end of the lintel 3. A seal 4 is integrally formed, and this lintel seal 4 is provided to protrude from the inside of the entrance/exit 2 and below. This lintel seal 4 is
It is made of flexible material such as rubber or synthetic resin. Further, a locking metal fitting 5 is fixed to an intermediate portion of the upper inner side of the upper body 1 with bolts 6.
This locking metal fitting 5 has a plate-like piece 7 that is joined to the inner wall of the upper body 1, and a locking piece that is inclined upwardly and inwardly through a horizontal part 8 at the lower end of this plate-like piece 7. It has a piece 9, and an insertion recess 10 with an open upper surface is formed between the locking piece 9 and the plate-like piece 7.

Further, vertical rail fixing frames (not shown) are vertically installed on both left and right sides of the inside of the entrance 2, and horizontal rail fixing frames (not shown) are installed at the upper ends of the vertical rail fixing frames on both sides. are horizontally protruding from the inside of the building, facing each other. Vertical rails 11 are fixed to the vertical rail solid frames on both sides, and horizontal rails are integrally formed on the upper ends of the vertical rails 11 via curved parts 12 to the horizontal rail fixing frames on both sides. 13 is fixed.

Further, 14 is an overdoor formed in a size that closes the entrance/exit 2, and this overdoor 14
A large number of horizontally long panels 15 are arranged in a row so as to be bendable in the vertical direction, vertical frames 16 are fixed to both left and right ends of each panel 15, and an upper frame 17 is attached to the upper end of each panel 15. At the bottom end is a lower stile (not shown)
and furthermore, inside each panel 15, reinforcing frames are installed vertically and horizontally at predetermined intervals between the vertical frames 16 at both the left and right ends and between the upper frame 17 and the lower frame. It's getting old.

Next, hinges 18 are attached to the vertical frames 16 at both left and right ends of the overdoor 14 at predetermined intervals in the vertical direction.
are provided to protrude inwardly, and a guide roller 20 that engages with the series of vertical rails 11 and horizontal rails 13 is rotatably mounted on the horizontal portion 19 of each hinge 18 via a support shaft 21. ing.

Further, an engaging metal fitting 22 is fixed to the middle portion of the upper end of the overdoor 14 . This engagement fitting 22
has a mounting piece 23 that is attached to the upper stile 17 of the over door 14, and the above-mentioned locking metal fitting 5 is attached to the upper part of the rising piece 24 that projects outside of this mounting piece 23.
It has an engaging piece 25 that engages and disengages from the locking piece 9, and a supporting piece 26 is fixed between the mounting piece 23 and the rising piece 24. A mounting piece 23 of this engaging fitting 22 is fixed to the upper frame 17 with bolts and nuts 27.

In the structure configured in this way, the entrance/exit 2
When the entrance/exit 2 is closed in the open state, by pulling down the overdoor 14 supported between the horizontal rails 13, the overdoor 14 is removed from the horizontal rails 13 via each guide roller 20. When the lower stile of the overdoor 14 is rotated down along the vertical rail 11 and contacts the floor of the entrance/exit 2, the engaging piece 25 of the engaging fitting 22 attached to the upper end of the overdoor 14 is simultaneously locked. It is automatically engaged and locked with the locking piece 9 of the metal fitting 5. At this time, the overdoor 14 descends while contacting the lintel seal 4, so that when the overdoor 14 stops descending, the lintel seal 4 comes into pressure contact with the overdoor 14, and the overdoor 14 and the upper frame 1 are brought into contact with each other. Seal between.

In this state, even if external pressure such as wind pressure is applied to the overdoor 14, the overdoor 14 The lintel seal 4 does not bend and therefore the lintel seal 4 is not blown up and folded back. Therefore, the space between the over door 14 and the upper body 1 is reliably sealed by the lintel seal 4, and This state is maintained.

[Effect of idea]

According to the present invention, when closing the entrance/exit, by pulling down the overdoor, the engaging piece of the engaging fitting attached to the middle upper part of the overdoor changes to the engaging piece of the engaging fitting attached to the upper body. The middle part of the overdoor is automatically locked to the upper body when the entrance is closed. As a result, even if external pressure such as wind pressure is applied to the overdoor, it is possible to reliably prevent the overdoor from bending and creating a large gap between them.
The lintel seal interposed between the overdoor and the upper body can be reliably prevented from being blown up and deformed by wind pressure, etc., and this lintel seal securely secures the space between the upper body and the overdoor. This seal can reliably prevent dust from blowing into the inside of the building, and the locking fittings on the overdoor can be automatically attached to the locking fittings on the upper structure by the lifting and lowering movement of the overdoor. It is easy to engage and disengage, and the locking metal fittings and the engaging metal fittings do not impede the vertical movement of the overdoor.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is a sectional view of the deflection prevention device in the closed state of the overdoor, Fig. 2 is a perspective view of a part of the above overdoor, and Fig. 3 is a sectional view of the deflection prevention device in the overdoor closed state. It is an exploded perspective view of a prevention device. DESCRIPTION OF SYMBOLS 1... Upper body, 2... Entrance/exit, 4... Lintel seal, 5... Locking metal fitting, 9... Locking piece, 14...
... Over door, 22 ... Engagement fitting, 25 ... Engagement piece.

Claims (1)

[Scope of utility model registration request] A locking metal fitting is attached to the middle part of the upper body of the doorway and has a locking piece projecting upward on the inner side; an overdoor that can be raised and lowered to open and close the doorway; an engaging metal fitting protruding from an engaging piece that engages with a locking piece of the locking metal fitting when the doorway is closed by a door; A device for preventing deflection of an overdoor, characterized by comprising a lintel seal that closes the gap over the entire length in the width direction.