KR20170097513A - Flush doors door hinge - Google Patents

Flush doors door hinge Download PDF

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Publication number
KR20170097513A
KR20170097513A KR1020160019377A KR20160019377A KR20170097513A KR 20170097513 A KR20170097513 A KR 20170097513A KR 1020160019377 A KR1020160019377 A KR 1020160019377A KR 20160019377 A KR20160019377 A KR 20160019377A KR 20170097513 A KR20170097513 A KR 20170097513A
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KR
South Korea
Prior art keywords
hinge
frame
door
bent
fire door
Prior art date
Application number
KR1020160019377A
Other languages
Korean (ko)
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KR101820227B1 (en
Inventor
탁우찬
Original Assignee
탁우찬
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Publication date
Application filed by 탁우찬 filed Critical 탁우찬
Priority to KR1020160019377A priority Critical patent/KR101820227B1/en
Publication of KR20170097513A publication Critical patent/KR20170097513A/en
Application granted granted Critical
Publication of KR101820227B1 publication Critical patent/KR101820227B1/en

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    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
    • E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
    • E06B5/16—Fireproof doors or similar closures; Adaptations of fixed constructions therefor
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D11/00—Additional features or accessories of hinges
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D3/00—Hinges with pins
    • E05D3/02—Hinges with pins with one pin
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D5/00—Construction of single parts, e.g. the parts for attachment
    • E05D5/02—Parts for attachment, e.g. flaps
    • E05D5/06—Bent flaps
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13—Application of doors, windows, wings or fittings thereof for buildings or parts thereof characterised by the type of wing
    • E05Y2900/132—Doors
    • E05Y2900/134—Fire doors

Abstract

The present invention provides a buried hinge device for a fire door, having a structure buried in a fire door and a door frame not to be exposed to the outside, thus preventing breakage due to external intrusion. According to the present invention, the device comprises: a fixated hinge part including a flange, a body part having a rotary space formed therein, and a hinge hole penetrating upper and lower surfaces of the body part; a first bending part disposed in a side part of the fire door facing the fixated hinge part to be coupled and fixated by a plurality of screw members; and a movable hinge part including a hinge pipe part having a hinge pin.

Description

[0001] Flush doors hinge for fire doors [

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a flush hinge device for opening and closing a fire door, which is an entrance door of a smoking space, and more particularly, The present invention relates to a flush-type hinge device for a fire door, which can prevent breakage of hinge accessories for intrusion into the outside and enable opening of the flush door through 180-degree rotation.

Generally, ventilation facilities are installed in apartment buildings and large buildings. These ventilation facilities prevent the spreading of fire in case of fire, ensuring the safety of evacuation, preventing loss by smoke, securing a watch for digestion, Means facilities for discharging.

Especially, as the number of high-rise apartment buildings and large buildings increases, the number of fire-generating elements increases so much that if people can not prevent spreading of flames and smoke when a fire occurs, people living in high- Because it causes many human loss and property loss, it is important to arrange the indoor space and the role of the fire door which acts as the door.

Such a fire door provides a time to evacuate the people when the fire occurs and prevents the fire from moving. In the smoke-free area where the smoke-free facility is installed, the door closes when smoke is detected by the smoke detector And the door can be closed instantly. For this purpose, the fire door is rotatably fixed to the door frame by the hinge device, so that the door opening / closing operation is possible.

The hinge device is configured such that each hinge element adapted to be rotated with respect to each other with the intermediate shaft-engaged portion interposed therebetween is configured to be coupled to the side surface of the door frame and the corresponding fire door, In particular, even when the fire door is closed, since the intermediate engaging part of the hinge device is always exposed to the outside, when the exposed part is disassembled or forcibly broken, the door can be forcibly opened even if the fire door is locked , So that even if a lock was installed in the fire door, the opening due to breakage of the exposed portion of the hinge element could not be prevented.

In addition, when the joint portion is exposed to the outside as in the conventional hinge device, the appearance is not good, and there is also a limit to making the door frame and the door cooperate with each other in the hinged door.

In order to solve the problems of the conventional exposure hinge device as described above, Korean Patent Registration No. 10-1206621 proposes an exposure hinge.

The hinge of the above-described prior art is fixedly installed in a state where a pair of hinge housings are housed in a mounting groove formed at a position corresponding to the door frame and door, and a hinge housing The first hinge pieces of the pair are arranged so as to be rotatable about the rotation axis in the opening and closing operation of the door in a state in which the first hinge pieces are arranged and coupled vertically with the second hinge pieces sandwiched therebetween. There is a problem that the hinge device is twisted or easily broken by the weight of the fire door if it is applied to a relatively heavy fire door because the reinforcement is not provided inside the housing, Since the gap of the hinge housing is relatively wide, a gap is generated between the door frame and the door Not only the outer appearance was poor, but also the feeling of stability and airtightness were deteriorated.

In addition, conventional flip hinges can not be rotated 180 degrees due to the structural nature of the hinges, so that they can not be applied to places where 180 degree opening is required.

Registered Patent Publication No. 10-1531750 (June 19, 2015), "Embedded fire door door hinge structure"

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the conventional art as described above, and it is an object of the present invention to provide a door hinge device, And to provide a flush-type hinge device for a fire door that can prevent the door from being damaged due to breakage of the hinge parts and the forced opening of the door.

It is another object of the present invention to provide a flush-type hinge device for a fire door which can prevent the hinge element from being exposed to the outside, thereby maintaining the appearance of the exterior, and enabling the fire door to be rotated 180 degrees, .

The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, the embedding type hinge device for a fire door according to a preferred embodiment of the present invention includes a fixed hinge portion provided on a door frame side, a movable hinge portion rotatably supported on the fixed hinge portion, Wherein the door frame is bent to have a shape corresponding to an inner space of the door frame and extending from the flange, the flange being disposed inside the door frame and coupled with a plurality of screw members, And a hinge hole passing through the upper and lower surfaces of the body portion, wherein the hinge hole is formed in the body portion. A first bent portion which is located at a side of the fire door facing the fixed hinge portion and is fixedly coupled by a plurality of screw members, and a second bent portion which is bent by being bent a number of times at the first bent portion, And a movable hinge part formed of a hinge tube part having a hinge pin which is located in a rotation space of the body part and rotatably pivoted in a hinge hole.

According to another preferred aspect of the present invention, the door frame includes a frame front portion exposed on the front surface, a frame recessed portion extending perpendicularly from the front surface portion of the frame, and a frame extending perpendicularly to the fire door from the frame recessed portion. A frame side portion disposed in parallel with the frame concave portion extending vertically bending at a step portion of the frame, and a side portion of the frame portion of the frame side portion, The fixed hinge portion includes a flange which is in tight contact with the inner surface of the frame side surface portion and is engaged and fixed by a plurality of screw members, and a box- The recessed portion, the frame stepped portion, And a hinge hole passing through the door frame is formed at a position adjacent to the front surface of the frame, and the fire door is formed in a frame side portion of the door frame, a frame step portion, And a door protruding portion which is bendably connected to the door side portion,

Wherein the movable hinge portion includes a first bent portion that is in tight contact with the door side portion and is engaged and fixed by a plurality of screw members, a second bent portion that is bent and extended perpendicularly from one side of the first bent portion toward the door frame side, A third bent portion extending perpendicularly from the bent portion and disposed in parallel with the first bent portion, a fourth bent portion extending perpendicularly bent in the third bent portion toward the fire door, And a hinge tube portion provided inside the hinge tube portion and having a hinge pin rotatably fitted in the hinge hole of the fixed hinge portion.

In another preferred aspect of the present invention, the movable hinge portion further includes a reinforcing extension end portion having one end of the first bent portion inserted into the interior of the door through a cut hole formed in the door step portion of the fire door .

According to another preferred aspect of the present invention, the hinge tube portion is formed in a cylindrical shape with an open top and a bottom, and a notch portion is formed inwardly at a lower portion of the hinge tube portion. The hinge tube portion is inserted into a lower portion of the hinge tube portion, A notch groove formed at a corresponding position to be engaged with the notch, and a lower end having a diameter adapted to be rotatably inserted into the hinge hole; A lift pin inserted into the upper part of the hinge tube part so as to be able to move up and down, the upper end of the lift pin being rotatably inserted into the hinge hole; And a pin projecting screw which is inserted into the screw hole formed at one side of the outer surface of the hinge tube portion and inserted into the screw hole so that one end of the screw is located inside the hinge tube portion so that the lift pin is lifted up and moved upward .

Since the embedding type hinge device for a fire door according to the present invention is embedded in a fire door and a door frame, it is not exposed to the outside irrespective of the opening and closing of the fire door, thereby preventing breakage for external entry, So that a useful effect of solving the restriction on the installation place is expected.

In addition, since the hinge element is not exposed to the outside, the appearance of the door can be enhanced, and the door frame and the fire door can be seen as being integrated with each other.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to that, terms and words used in the present specification and claims should not be construed in a conventional and dictionary sense, and the inventor may properly define the concept of the term in order to best explain its invention It should be construed as meaning and concept consistent with the technical idea of the present invention.

1 is a perspective view for explaining a configuration of a flush-type hinge apparatus for a fire door according to the present invention;
FIG. 2 is a perspective view for explaining a fixed hinge part in a flush-type hinge apparatus for a fire door according to the present invention;
FIG. 3 is a perspective view for explaining a movable hinge unit in the flush-type hinge apparatus for a fire door according to the present invention,
FIG. 4 is a perspective view illustrating a dismounting state of a flush-type hinge apparatus for a fire door according to the present invention.
FIG. 5 is a perspective view showing an assembled state of the flush-type hinge apparatus for a fire door according to the present invention,
6 to 9 are horizontal sectional views for explaining the operation of the flush type hinge apparatus for a fire door according to the present invention,
FIG. 10 and FIG. 11 are cross-sectional views excerpted from the recessed portion configuration of the movable hinge portion in the embedding type hinge apparatus for a fire door according to the present invention,
12 and 13 are sectional views showing another embodiment of Fig. 10,
FIG. 14 is an exploded perspective view of a main part for explaining a modified embodiment of the movable hinge part in the embedding type hinge device for a fire door according to the present invention, FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, configurations and operations of embodiments of the present invention will be described in detail with reference to the accompanying drawings. It is to be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but on the contrary, is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

It is noted that the terms "comprises" or "having" in this application are intended to specify the presence of stated features, steps, operations, components, parts, or combinations thereof in one or more other features or acts, , Components, parts, or combinations thereof, as a matter of convenience, without departing from the spirit and scope of the invention. That is, throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements, not excluding other elements unless specifically stated otherwise.

Also, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

Hereinafter, a detailed description of well-known functions and configurations that unnecessarily obscure the gist of the present invention will be omitted so as not to obscure the gist of the present invention. Embodiments of the present invention are provided to more fully describe the present invention to those skilled in the art. Accordingly, the shapes and sizes of the elements in the drawings and the like can be exaggerated for clarity.

1 is a perspective view illustrating a configuration of a flush-type hinge apparatus for a fire door according to the present invention.

The figure shows a fixed hinge part 10 provided on the side of a door frame 1 forming a rim of an entrance for entrance into and exit from a building and a fire door 2 provided on the fixed hinge part 10 so as to be openable / The fixed hinge part 10 is installed inside the door frame 1 and has a hinge hole 11h penetrating the door frame 1 and passing through it. Wherein the movable hinge portion 20 has one end fixedly coupled to the side portion of the fire door 2 and the other end bent and extended several times to be rotatable with respect to the hinge hole 11h of the body portion 11. [ And a hinge tube portion 25 having a hinge pin 26 which is pivotally inserted into the hinge pin 25. The hinge device 100 for a fire door is shown in Fig.

2 is a perspective view illustrating a fixed hinge unit in a flush-type hinge apparatus for a fire door according to the present invention.

The door frame 1 and the fixed hinge part 10 are shown in the figure and the door frame 1 at this time has a frame front part 1a exposed to the outside, The step portion 1c and the frame side surface portion 1d are bent and extended vertically and a portion of the frame front surface portion 1a is cut from the side surface portion 1d of the frame 1, And the flange 13 is formed to be in tight contact with the inner surface of the flange 31 and to be engaged with and fixed to the inner surface of the flange 31 by screw fastening, A body portion 11 of a substantially box shape is formed at one side of the flange 13 and a hinge hole (not shown) which is opened toward the side of the fire door 2 and penetrates up and down at a position adjacent to the flange portion 31 11h are formed.

3 is a perspective view for explaining a movable hinge unit in a flush-type hinge apparatus according to the present invention.

In the figure, a fire door 2 and a movable hinge portion 20 are shown, wherein the fire door 2 is divided into a frame side portion 1d and a frame side portion 1c of the door frame 1, And the door protruding portion 2b are formed so as to correspond to the door side surface portion 2b of the door side surface 2b and the door side surface portion 2d, A second bent portion 22 extending perpendicularly to the side of the first bent portion 21 toward the side of the first bent portion 21 and a second bent portion 22 extending from the second bent portion 22 in the vertical direction, A third bend 23 extending in a direction perpendicular to the first bend 23 and extending parallel to the first bend 21 and a fourth bend extending perpendicularly to the side of the fire door 2 at the third bend 23, A hinge tube portion 25 formed at an end of the fourth bent portion 24 and a second hinge tube portion 25 formed in the hinge tube portion 25, A configuration consisting of a hinge pin 26, which is fitted to rotate the shaft hinge hole (11h) of the section 10 is shown.

FIG. 4 is a perspective view illustrating a disassembled state of the flush-type hinge apparatus for a fire door according to the present invention, and FIG. 5 is a perspective view illustrating an assembled state of the flush-type hinge apparatus for a fire door according to the present invention.

The figure shows a flange 13 which is located in the inner space of the door frame 1 and which is coupled by a plurality of screw members and a bending portion 13 which extends from the flange 13 and which has a shape corresponding to the inner space of the door frame 1, A body portion 11 which is formed in a shape of a box and which is provided in a box shape opened to the side of the fire door 2 so as to form a rotation space 10s therein and an upper portion and a lower portion of the body portion 11, A first hinge portion 10h having a hinge hole 11h for forming a first hinge portion 11h and a second hinge portion 11b for fixing the first hinge portion 10a to the first hinge portion 10, Is bent and extended several times at the first bent portion 21 and the end portion thereof is positioned in the rotating space 10s of the body portion 11 through the incision 1s of the door frame 1 And a movable hinge portion 20 having a hinge pin 26 that is rotatably pivotally mounted on the hinge hole 11h. A movable hinge unit 20 according to the present invention is provided with a hinge hole 11h in which the hinge pin 26 is inserted, .

6 to 9 are plan sectional views schematically illustrating the operation of the flush-type hinge apparatus for a fire door according to the present invention, wherein FIG. 6 is a cross-sectional view of the fire door 2, 8 shows a state in which the fire door 2 is turned by 90 degrees and opened. Fig. 9 shows a state in which the fire door 2 rotates by 180 degrees. Fig. 7 shows a state in which the fire door 2 is opened. Fig. And is opened.

The figure shows a fixed hinge part 10 embedded in the door frame 1 and a fixed hinge part 10 fixedly mounted on the side of the door 2 so as to be rotatably pivotally mounted on the fixed hinge part 10, There is shown a flush-type hinge device 100 for a fire door, which comprises a movable hinge part 20 which is hingedly coupled to a fixed hinge part 10 installed in the door frame 1 and hinged thereto.

10 and 11 are sectional views showing a recessed portion of the movable hinge unit in the embedding type hinge apparatus for a fire door according to the present invention. 11 shows a state in which the hinge pin located on the upper side is elastically pressed downward in order to assemble the hinge hole 11h formed in the body part 11. As shown in FIG.

The figure shows a hinge pin 25 and a hinge pin 26 which are rotatably pivotally mounted on a hinge hole 11h formed in a body part 11 of the fixed hinge part 10, The hinge tube portion 25 of the present invention is a tubular element whose upper and lower surfaces are opened with reference to the drawing. The hinge pin 25 is fixedly coupled to one of the upper and lower ends by interference fit, And a hinge pin which is lifted and lowered by a spring 27 provided inside the hinge hole 11h is structured to be able to be inserted into the hinge hole 11h formed in the body portion 11 of the fixed hinge portion 10, .

12 and 13 are sectional views showing another embodiment of Fig. 10, wherein Fig. 12 shows a state in which the lifting pin 26a among the elements constituting the hinge pin 26 is lifted, Fig. 13 is a cross- The hinge pin 26 in this embodiment includes a lift pin 26a assembled at the upper portion of the hinge tube portion 25 so as to be able to move up and down, And a fixing pin 26b which is assembled and fixed to the lower portion of the fixed hinge portion 10 so that the movable hinge portion 20 can be easily assembled and disassembled into the fixed hinge portion 10 It is a technical feature.

In order to achieve this, the hinge tube portion 25 of the present invention is formed in a cylindrical shape having open top and bottom surfaces, and a notch portion 25n is formed inwardly at one side of the lower portion thereof. And a screw hole 25h is formed so that the screw 28 can be fastened.

The fixing pin 26b is fixed to the lower portion of the hinge tube 25 and is inserted into the lower side of the hinge tube 25 so that the notch 25n is formed on the outer surface of the fixing pin 26b at a position corresponding to the notch 25n. And is integrally joined to the hinge tube portion 25 by a notch process. The notch groove 26n may be formed integrally with the notch portion 25n by using a notch press after assembling the notch groove 26n with the hinge tube portion 25. In addition to the notch groove 26n, 26b may be assembled to the hinge tube portion 25 to press the outer surface of the hinge tube portion 25 corresponding to the notch groove 26n so that the notch portion 25n is integrally formed. Such notch machining may be performed by a known technique, and a detailed description thereof will be omitted. The fixing pin 26b is rotatably fitted in a lower hinge hole formed in the body portion 11 constituting the fixed hinge portion 10.

The lifting pin 26a is fixed to the upper portion of the hinge tube 25 and is slidably inserted into the upper portion of the hinge tube 25. The upper end of the lifting pin 26a is fixed to the fixed hinge 10, Which is rotatably inserted into the upper hinge hole formed in the body portion 11 of the main body 11.

The hinge tube portion 25 is formed with a threaded hole 25h through which a screw thread is formed on one side of the outer surface of the hinge tube portion 25 so that one end of the screw hole 25h is connected to the inside of the hinge tube portion 25 And a pin projecting screw 28 for lifting the lifting pin 26a upward and moving the lifting pin 26a upward is assembled.

At this time, it is preferable that the screw hole 25h is located on the upper side with respect to the upper surface of the fixing pin 26b with reference to the drawing, and the facing surfaces of the fixing pin 26b and the lift pin 26a It is preferable that the rim portion is inclined so that the pin projecting screw 28 can easily enter the inside of the hinge tube portion 25.

The movable hinge portion 20 constructed as described above inserts the fixing pin 26b into the lower hinge hole provided in the body portion 11 of the fixed hinge portion 10 first and then inserts the pin projecting screw 28 The lifting pin 26a in the state of being downwardly moved in the hinge tube 25 is aligned with the upper hinge hole provided in the body 11. [ In this state, when the pin projecting screw 28 is fastened to the screw hole 25h, the lifting pin 26a is moved upward so that the upper portion of the lifting pin 26a is lifted upwards And is inserted into the hinge hole of the hinge shaft.

FIG. 14 is an exploded perspective view for explaining a modified embodiment of the movable hinge unit in the flush-type hinge apparatus for a fire door according to the present invention.

The figure shows that a reinforcing extension end portion 21a is formed by extending one end of the first bent portion 21 which is an element constituting the movable hinge portion 20, The movable hinge portion 20 of the present invention is firmly coupled to the fire door 2 by being inserted into the interior of the door through the cut hole h formed in the door step portion 2c of the fire door 2. [ It is a reinforcing element for fixing.

The following is a detailed description of the configuration of the flush-type hinge apparatus for a fire door according to the present invention with reference to the above drawings.

A movable hinge portion 20 fixedly installed on the side of the door frame 1 and rotatably supported by the fixed hinge portion 10; (100) for a fire door.

The fixed hinge portion 10 includes a flange 13 positioned inside the door frame 1 and coupled with a plurality of screw members and a flange 13 extending from the flange 13 and corresponding to the inner space of the door frame 1 A body portion 11 formed by bending the body portion 11 so as to have a shape in which a portion facing the fire door 2 side is provided in an opened box shape to form a rotation space 10s therein, And a hinge hole (11h) for passing through the lower surface.

A door frame 1 providing a space in which the fixed hinge parts 10 are embedded is provided with a frame front part 1a exposed on the front side and a frame bent and extended perpendicularly from the front side part 1a of the frame. A frame step portion 1c extending vertically bending toward the side of the fire door 2 from the frame recessed portion 1b and a frame recessed portion 1c extending vertically bending at the frame stepped portion 1c 1b of the body part 11 of the fixed hinge part 10 provided inside the frame side part 1d and a part of the frame front part 1a is cut from the side face part 1d of the frame 1d, The incision window 1s is formed to expose the upper surface 10s.

On the other hand, the size of the incision window 1s should be of a size that does not cause positional interference when the movable hinge unit 20, which will be described later, is turned 180 degrees.

The fixed hinge portion 10 of the present invention which is embedded in the door frame 1 has a flat flange (not shown) in close contact with one side of the inner surface of the frame side portion 1d among the elements constituting the door frame 1 The flange 13 is fastened and fixed to the flange portion 31 by a plurality of screw members (not shown). The flange 13 is provided at one side thereof with a substantially box-shaped body portion 11. The body portion 11 at this time has a frame front portion 1a, a frame fitting portion 1b, And a hinge hole (11h) penetrating upward and downward at a position adjacent to the frame front surface portion (1a) is formed to shield the upper surface of the space formed by the frame portion (1c) and the frame side surface portion to be.

1, the fixed hinge portion 10 according to the present invention includes a portion corresponding to the frame front portion 1a side and a side portion of the fire door 2 on which the movable hinge portion 20 is provided And a flange 13 extending vertically bending vertically upward and downward to form a flange 13 which is in contact with the frame side surface portion 1d. The flange 13 has four fixing screw holes And is fastened and fixed to the door frame 1 by a screw member by forming the opening 13h.

The movable hinge portion 20 includes a first bent portion 21 located at a side of the fire door 2 and opposed to the fixed hinge portion 10 and coupled with a plurality of screw members, The hinge hole 11h is bent by being bent several times and its end portion passes through the incision 1s of the door frame 1 and is positioned in the rotation space 10s of the body portion 11 so that the hinge hole 11h is pivotally supported And a hinge pin (26) provided on the base.

The fire door 2 on which the movable hinge portion 20 is installed is provided with a frame side portion 1d of the door frame 1 and a door bendingly connected to the frame side portion 1c and the frame fitting portion 1b, A side surface portion 2d, a door step portion 2c, and a door protruding portion 2b.

The movable hinge portion 20 of the present invention fixedly installed on the fire door 2 has a first bent portion 21 of a plate shape having an area corresponding to the door side portion 2d constituting the fire door 2 And a second bent portion 22 bent vertically from one side of the first bent portion 21 toward the door frame 1 is formed. A third bent portion 23 is formed by being bent perpendicularly at the second bent portion 22 and disposed in parallel with the first bent portion 21, A fourth bent portion 24 extending vertically and facing the fire door 2 and a hinge tube portion 25 formed to have a cylindrical shape having upper and lower surfaces opened at an end portion of the fourth bent portion 24, And a hinge pin 26 provided inside the hinge tube 25 and pivotally mounted on the hinge hole 11h of the fixed hinge 10.

That is, the first bent portion 21 and the second bent portion 22, and the third bent portion 23 and the fourth bent portion 24 constituting the movable hinge portion 20 of the present invention are formed in a rectangular shape The first bent portion 21 is fastened and fixed to the door side surface portion 2d through a plurality of screw members and the second bent portion 22 is formed on one side of the door frame 1 Is inserted into the incision window 1s and is positioned in the rotation space 10s formed by the body portion 11 of the fixed hinge 10. The third bent portion 23 and the fourth bent portion 24 and the hinge tube portion 25 are located in the rotating space 10s. The hinge tube portion 25 has a hinge portion 25, And the pin 26 is pivotally engaged with the hinge hole 11h of the body portion 11 so as to be rotatably engaged.

The hinge pin 26 may be variously formed. However, in order to facilitate assembly and disassembly of the hinge pin 26, a fixing pin (not shown) And a pin projecting screw 28 that is inserted through a screw hole 25h formed in a side of the hinge tube 25 in a state of being slidably assembled on the upper part of the hinge tube 25, As a result, it is proposed that the fixed hinge portion 10 is constituted by a lift pin 26a which is pivotally fitted to a hinge hole provided on the upper side of the body portion 11.

 The movable hinge portion 20 of the present invention is configured such that one end of the first bent portion 21 passes through the cut hole h formed in the door step portion 2c of the fire door 2 And a reinforcing extension end portion 21a provided to be inserted.

This is to increase the coupling force between the movable hinge portion 20 and the fire door 2. The area of the first bent portion 21 among the elements constituting the movable hinge portion 20 corresponds to the width of the fire door 2 So as to maintain a firm and stable bonding force.

The operation of the embedding type hinge apparatus for a fire door according to the present invention will now be described with reference to FIGS. 6 to 9. FIG.

6 shows a state in which the fire door 2 is closed and is briefly shown in the figure, the door frame 1 is provided in a rectangular shape as a whole, in which the fire door 2 is located, The door 2 is opened counterclockwise about the hinge pin 26 and is closed by being rotated in the clockwise direction.

6, when the handle (not shown) of the fire door 2 is gripped and pulled forward, the door 2 is rotated around the hinge pin 26 to form a state as shown in FIG. At this time, the movable hinge part 20 is hinged to the body part 11 of the movable hinge part 20 through the incision 1s formed in the door frame 1, .

When the fire door 2 is further rotated in the counterclockwise direction as shown in FIG. 7, the door is opened by 90 degrees as shown in FIG. 8. When the door is further rotated counterclockwise in this state, .

6, the hinge unit 100 for a fire door according to the present invention having such a configuration is configured such that the hinge tube 25 is closed even when the fire door 2 is completely closed and the fire door 2 is completely opened as shown in FIG. And the hinge pin 26 are kept from being exposed to the outside, so that the breakage of the hinge pipe 25, the hinge pin, the hinge hole, and the like is prevented, It is possible to make the appearance through the 180-degree rotation possible while opening.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes may be made and departures may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. It is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and similarities. Therefore, the above-described embodiments are to be considered in all aspects as illustrative and not restrictive, and all such changes and modifications are intended to fall within the scope of the appended claims.

1: Door frame 1a: Frame front part
1b: frame fitting portion 1c: frame side step portion
1d: frame side portion 1e: frame projection portion
1d ': frame side extension portion 1a': frame rear portion
1s: incision window 2a: front surface of the door
2b: door protruding portion 2c: door step portion
2d: door side portion 2e: door rear side
2h: Door screw hole 10: Fixing hinge part
10s: rotation space 11: body part
11h: Hinge hole 13: Flange
13h: Fixing screw hole 20: Movable hinge part
21: first bent portion 21h: movable hinge screw hole
22: second bent portion 23: third bent portion
24: fourth bent portion 25: hinge tube portion
26: hinge pin 27: spring

Claims (3)

And a movable hinge portion 20 fixedly installed on the fire door 2 so as to be rotatably supported by the fixed hinge portion 10. The door hinge portion 10 is provided on the side of the door frame 1, In the embedding type hinge apparatus,
A flange 13 located inside the door frame 1 and coupled with a plurality of screw members and a flange 13 extending from the flange 13 and bent to have a shape corresponding to an inner space of the door frame 1, A body portion 11 which is provided in a box shape in which a portion facing the fire door door 2 side is opened and which forms a rotation space 10s therein and a hinge portion 11c which penetrates the upper and lower surfaces of the body portion 11, A fixed hinge portion (10) having a hole (11h);
A first bent part 21 positioned at a side of the fire door 2 and fixed to the fixed hinge part 10 by a plurality of screw members and a second bent part 21 bent and extended from the first bent part 21 several times, And a hinge pin 26 which is rotatably pivotally connected to the hinge hole 11h by being positioned in the rotating space 10s of the body part 11 through the incision 1s of the door frame 1 A movable hinge portion 20 formed of a hinge tube portion 25 provided therein;
Wherein the hinge unit comprises: The method according to claim 1,
The door frame 1 includes a frame front portion 1a exposed on the front surface and a frame fitting portion 1b extending vertically in the frame front portion 1a and a frame fitting portion 1b extending from the frame fitting portion 1b to the fire door 2 A frame side surface portion 1d which is arranged in parallel with the frame concave portion 1b extending vertically bending at the frame side step portion 1c and a frame side surface portion 1d which is disposed in parallel with the frame side surface portion 1b, And an incision window 1s that exposes a part of the frame front part 1a in the body 1d so as to expose the rotation space 10s of the body part 11 of the fixed hinge part 10 provided therein,
The fixed hinge portion 10 includes a flange 13 which is in tight contact with the inner surface of the frame side surface portion 1d and is engaged and fixed by a plurality of screw members and a box- The frame is provided in a form shielding the upper surface of the space formed by the frame front portion 1a, the frame fitting portion 1b, the frame stepped portion 1c and the frame side surface portion 1d, A hinge hole 11h penetrating upward and downward is formed,
The fire door 2 includes a door side portion 1d of the door frame 1 and a door side portion 2d and a door side portion 2c which are bendably connected to correspond to the frame stepped portion 1c and the frame recessed portion 1b, And a door protruding portion 2b,
The movable hinge portion 20 includes a first bent portion 21 that is in tight contact with the door side surface portion 2d and is engaged with and fixed to the door frame portion 2d by a plurality of screw members, And a third bent portion 23 extending vertically from the second bent portion 22 and disposed in parallel with the first bent portion 21. The second bent portion 22 extends perpendicularly to the first bent portion 21 and the second bent portion 22, And a fourth bent portion 24 extending vertically from the third bent portion 23 toward the fire door 2 and a hinge pipe portion 25 formed at an end portion of the fourth bent portion 24 A hinge pin 26 provided inside the hinge tube 25 and pivotally mounted on the hinge hole 11h of the fixed hinge 10;
Wherein the hinge unit comprises: The method according to claim 1,
The hinge tube portion 25 is formed in a cylindrical shape having open top and bottom surfaces, a notched portion 25n is formed inwardly at one side of the hinge tube portion 25,
A notch groove 26n is formed at a position corresponding to the notched portion 25n by being inserted into the lower portion of the hinge tube portion 25 so that the notch groove 26n is engaged with the notched portion 25n and the lower end portion is inserted into the hinge hole 25 in a rotatable manner A fixing pin 26b which is provided with a fixing hole 26b;
A lifting pin 26a slidably inserted into the upper portion of the hinge tube 25 to be able to move up and down, the upper end of the lifting pin 26a being rotatably inserted into the hinge hole;
A screw hole 25h formed at one side of the outer surface of the hinge tube portion 25 and a screw hole 25h are inserted and one end of the screw hole 25h is positioned inside the hinge tube portion 25 to lift the lift pin 26a A pin projecting screw (28) for raising and moving up;
Wherein the hinge unit comprises:


KR1020160019377A 2016-02-18 2016-02-18 Flush doors door hinge KR101820227B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102584237B1 (en) * 2023-04-10 2023-10-05 주식회사 성우스타게이트 Hinge assembly for door

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102237179B1 (en) 2020-06-10 2021-04-06 김형수 Buried fire door assembly

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Publication number Priority date Publication date Assignee Title
JP3022685B2 (en) * 1992-08-03 2000-03-21 日本電気アイシーマイコンシステム株式会社 Static bus driver
KR200169568Y1 (en) * 1999-09-07 2000-02-15 삼성전자주식회사 Door hinge device of refrigerator
KR100512721B1 (en) 2003-02-06 2005-09-07 삼성전자주식회사 refrigerator
KR101155154B1 (en) 2012-01-26 2012-06-11 김지명 Hinge apparatus for fireproof door

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102584237B1 (en) * 2023-04-10 2023-10-05 주식회사 성우스타게이트 Hinge assembly for door

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