KR20230018020A - Folding door - Google Patents

Abstract

The present invention relates to a foldable door. More specifically, the foldable door comprises: a door frame; a plurality of opening/closing doors having one side slide along a guide rail of the door frame; a rolling member installed on one side of the opening/closing door so as to roll the guide rail, thereby coupling one side of another opening/closing door adjacent to the one side of the opening/closing door while axially rotating each of the coupled opening/closing doors; a hinge member coupling the other side of the opening/closing door departing from the guide rail with the other side of the other opening/closing door to be axially rotatable when the opening/closing doors are sequentially folded; and an attachment/detachment member installed at the other end of the opening/closing door so as to elastically press a rail groove of the guide rail, thereby attaching and detaching the rail groove through an action with a predetermined or higher level of strength. Therefore, the present invention is capable of enabling two opening/closing doors adjacent to each other to be rotated without an additional component such as a hinge.

Description

Folding door {Folding door}

The present invention relates to a folding door, and more particularly, to a door frame, a plurality of doors having one side sliding along a guide rail of the door frame, and installed on one side of the door so that the guide rail rolls. A rolling member that couples one side of another opening and closing door that is in contact with one side of the opening and closing door and pivots each coupled door, and moves the other side of the opening and closing door that escapes the guide rail when the opening and closing door is sequentially folded. A hinge member rotatably coupled to the other side of the opening and closing door, and a detachable member installed at the other end of the opening and closing door to elastically press the rail groove of the guide rail to detach the rail groove with an action of more than a certain force. Foldable It's about the door.

In general, a foldable door is installed by connecting a plurality of opening and closing doors to a door frame using a connecting member such as a hinge, and opens a space of the door frame while the plurality of connected opening and closing doors are folded.

In the folding door, the opening and closing door moves along the guide rail of the door frame in the process of folding the opening and closing door.

1 is Patent Registration No. 10-1271633 (registered on May 30, 2013), and is an example in which roller hinges 400, 450, 470, and 490 are used to connect an opening and closing door and a rolling member. Here, the folding door has a plurality of opening and closing doors D1 and D2 installed along the guide rails 150 and 155 formed on the frame of the door 100. A rolling member (210, 230, 250, 270) is installed to be movable along, a plurality of opening and closing doors (D1, D2) are hinged to each other with door hinges (300, 350), a plurality of opening and closing doors (D1, D2) and the rolling members (210, 230, 250, 270) are configured to be connected by roller hinges (400, 450, 470, 490). Unexplained numerals 500 and 600 in FIGS. 1A and 1B denote upper and lower fixing members. In addition, Figure 1c is a configuration in which the outer fixing piece 410 formed with a groove in the center of the roller hinge and the inner fixing piece 420 fitted into the groove of the outer fixing piece rotates on the hinge shaft 430. Non-explanatory numeral 415 is an external latching piece, 417 is an internal latching piece, and the latching pieces (415, 417) reduce installation errors by holding the door on the latching piece when connecting the door and the roller hinge, and then performing the fastening operation. it is for

As in the prior art, the conventional folding door connects the rolling member and the hinge to each other, and connects the rolling member to the hinge axis again, due to the operating characteristic that the door must slide along the guide rail of the door frame at the same time as the folding door is folded. It was a hassle to configure.

Registered Patent No. 10-1271633 (registered on May 30, 2013) Registered Patent No. 10-1966890 (registered on April 2, 2019) Registered Patent No. 10-1778077 (registered on September 7, 2017) Registered Patent No. 10-0746016 (registered on July 30, 2007)

An object of the present invention is to install a rolling member on each opening and closing door as in the prior art when connecting one side of an opening and closing door moving along a guide rail of a door frame, and then hinge each opening and closing door to give a rotational motion to the rolling member It is an object of the present invention to provide a foldable door that avoids the hassle of installation that must be reconnected with a hinge axis to be coupled.

In addition, an object of the present invention is that when connecting one side of an opening and closing door sliding along a guide rail of a door frame, two opening and closing doors are connected to each other through a rolling member installed on each opening and closing door, as well as without a separate hinge member combination. It is to provide a folding door capable of rotating through a rolling member installed on one side of each opening and closing door.

In the foldable door of the present invention for achieving the above object, when a plurality of opening and closing doors are folded and the door frame is opened, the other side of the door that escapes the guide rail of the door frame is provided at the point where the other sides of the two opening and closing doors come into contact with each other. The incision tube fixed to the other side of the opening and closing door is rotatably provided with the shaft rotation coupler of the hinge member being rotatably rotated; On one side of the two opening and closing doors, a support shaft that rotates is provided in a fixed cap fixed to each opening and closing door, and a support body having a roller that rolls on the guide rail of the door frame is provided at the upper end of the support shaft. The support body provided on one side of the opening and closing door is further provided with a male fixture and a female fixture, respectively, and one side of the two opening and closing doors is coupled to each other by the combination of the male fixture and the female fixture, and one side of each door is It is based on a configuration that enables shaft rotation with a support shaft as an axis.

In addition, the hinge member is fixedly installed on the other side of the one opening and closing door and the other side of the other opening and closing door, respectively, by cutting a portion of the cylindrical tube at a predetermined angle to form an insertion cutout tube to form a locking jaw, A pair of rotary shaft tubes having a fastening protrusion toward the center of the inner surface of the shaft rotation coupler connected to the support piece is inserted into the insertion cutout tube, and the fixing screws are screwed into the upper and lower parts of the rotation shaft tube It is installed to prevent the separation of the shaft rotation coupler.

In addition, at least one of the upper and lower ends of the other side of the opening and closing door has a coupling cap fixed to the opening and closing door by forming a receiving groove, a compression spring seated on the groove step of the receiving groove, and supported on the groove step. A detachable and detachable head composed of a support rod elastically supported by the compression spring through a fixing clip and a detachable head connected to the support rod so as to be exposed outside the receiving groove and elastically detached from the frame groove of the guide rail when opening and closing the door. member is installed.

In addition, at least one configuration in which one sides of the opening and closing doors come into contact with each other by moving along the guide rail of the door frame is installed, and is disposed at both ends of the plurality of opening and closing doors moving along the guide rail of the door frame. The rolling member provided with the arm fixture is installed on one side of the opening and closing door.

In the foldable door of the present invention through the above configuration, in installing a rolling member including a roller sliding along the guide rail of the door frame rotatably with a support shaft on one side of the door, the roller and the support shaft are connected. A fixture is formed in the support body of the rolling member to be. However, since the fixture is installed as a male fixture on one of the two doors that are in contact with each other and installed as a female fixture on the other door, one side of the two doors is Along with being coupled to each other, one side of each coupled door is axially rotatable on the support shaft. Through this configuration, one side of the two opening and closing doors in contact with each other has the advantage of being able to rotate without adding a configuration such as a hinge.

1 is a half-open perspective view of a foldable door of the present invention;
Figure 2 is a perspective view of separation and coupling of the rolling member of part A of Figure 2;
3 is an exploded perspective view of a hinge member and a detachable member, which are part B of FIG. 2;
4 is an operating state diagram of the rolling member of the present invention.
5 is an operating state diagram of the hinge member of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. However, since the accompanying drawings show preferred embodiments of the present invention, the scope of the present invention is not limited by these drawings. In addition, even if the configuration is essential for carrying out the present invention, a detailed description of the configuration that belongs to the known technology or can be easily implemented by a person skilled in the art from the known technology will be omitted.

In addition, in the description of the present invention, when the opening and closing door 20 is folded, one side 21 slides without leaving the guide rail 11 of the door frame 10, and the side 21 leaves the guide rail 11. The side out of the door frame 10 is the other side 22.

The foldable door 1 of the present invention includes a door frame 10, a plurality of doors 20 in which one side slides along the guide rail 11 of the door frame 10, and the guide rail 11 in a rolling motion. A rolling member 30 installed on one side 21 of the opening and closing door to couple the one side 21 of the other opening and closing door in contact with the one side 21 of the opening and closing door and pivoting each coupled door 20 together, Hinge member 40 that rotatably couples the other side 22 of the opening and closing door, which escapes from the guide rail 11, with the other side 22 of another opening and closing door when the opening and closing door 20 is sequentially folded, and the guide It is installed at the end of the other side 22 of the opening and closing door to elastically press the rail groove 12 of the rail 11 and includes a detachable member 50 for detaching the rail groove 12 by an action of a certain amount or more.

The door frame 10 has a rectangular shape in which each of the upper, lower, left and right frames are connected, a step may be formed on an inner inner surface, and guide rails 11 are installed on the upper and lower frames. In the guide rail 11, a rail groove 12, which is a space, is formed between the rails on both sides.

The opening and closing door 20 opens and closes the inner space of the door frame 10, and has a rectangular shape in which each of the upper, lower, left and right frames are connected. A crime-proof window and/or an insect-proof window may be installed in the inner space of the upper, lower, left and right frames. In addition, the opening and closing door 20 is part (A) of FIG. 2, which is one side that slides along the guide rail 11 of the door frame 10 when folded, and the other side that is separated from the guide rail 11 ( B) can be divided into parts, and, of course, one side 21 and the other side of the opening and closing door are not limited to the upper end.

In addition, as shown in FIG. 1, support grooves 23 are formed on both inner sides of the side frames, which are the left and right frames of the opening and closing door 20. The fixing cap 34 of the rolling member 30 or the coupling cap 51 of the detachable member 50, which will be described later, is fixedly coupled to the support groove 23.

In addition, a locking member 60 for operating a lock rod (not shown) for fixing the opening and closing door 20 to the door frame 10 may be installed on the side frame that is the other side 22 of the opening and closing door. After unlocking the opening and closing door 20 from the door frame 10 by unfolding the handle of the locking member 60 and pulling the handle, the opening and closing door 20 is folded and the inner space of the door frame 10 is opened. It is open.

Referring to FIG. 1, the rolling member 30 includes a support body 31, a roller 32, a support shaft 33, a fixing cap 34, and male and female fixtures 36 and 35, so as to open and close the door. It is installed at the end of one side 21, preferably installed on both the upper and lower ends of the side frame, which is the one side 21 of the opening and closing door.

The support body 31 is a rod shape having a longitudinal direction as a whole. Preferably, the support through hole 31a may be formed in the shape of a square bar, and penetrating both sides of the support body 31 in the width direction, which is a direction perpendicular to the longitudinal direction of the square bar.

The roller 32 is rotatably installed on the support body 31, and preferably, rolling rollers 32b are assembled on both sides of a roller rod 32a rotatably coupled to the support through-hole 31a. is formed Naturally, the diameter of the rolling roller 32b exceeds the side length of the support body 31 in the width direction.

The support shaft 33 has a cylindrical shape in which one side is integrally fixed to the lower surface of the support body 31 and extends downward.

A cap through hole 34a is formed through one side of the foldable door 1, and the other side of the support shaft 33 is rotatably inserted into the cap through hole 34a. Here, the other end of the support shaft 33 is preferably formed to a length extending through the lower end of the cap through hole 34a, and the other end of the support shaft 33 passing through the lower end of the cap through hole 34a The fixing ring 37 is inserted and fixed through a screw as a fixing means.

As described above, the fixing cap 34, which is rotatably coupled to the support body 31 to which the roller 32 is coupled through the support shaft 33, forms a fixing screw hole 34b to move the one side 21 of the opening and closing door. It is fixed to the support groove 23 of the frame with a screw as a fixing means. Through this configuration, the rolling member 30 and one side 21 of the opening and closing door are fixedly coupled. In addition, even when the roller 32 is constrained by the guide rail 11 and rolls, the one side 21 of the opening/closing door can pivot around the support shaft 33 .

As described above, in the rolling member 30 of the present invention, one side 21 of the door opening and closing door 21 is a rolling member ( 30) is capable of pivoting around the support shaft 33 as an axis. In addition, the rolling member 30 of the present invention couples the one side 21 of the two opening and closing doors when the one side 21 of the two opening and closing doors comes into contact with each other. That is, as shown in (A) of FIG. 1, when one side 21 of one opening and closing door and one side 21 of another opening and closing door come into contact with each other, the rolling member 30 coupled to one side 21 of one opening and closing door ) At one end in the longitudinal direction, a male fixture 35 is protruded. And, at the other end in the longitudinal direction of the rolling member 30 coupled to one side 21 of the other opening and closing door, a female fixture 36 corresponding to the male fixture 35 is formed in a groove shape. Preferably, the male fixture 35 in the form of a screw rod and the female fixture 36 in the form of a screw hole are screwed together to form one rolling member 30 and another rolling member 30, the guide rail 11 ) are combined in a row on the In addition, through the coupling between the rolling members 30, one side 21 of one opening and closing door and one side 21 of the other opening and closing door are coupled to each other.

As described above, in the present invention, one side 21 of the two opening and closing doors is coupled to each other by the combination of the male fixture 35 and the female fixture 36, and each coupled one side 21 of the opening and closing door is connected to the support shaft At (33), shaft rotation becomes possible. Through this configuration, one side 21 of the two opening and closing doors in contact with each other can be rotated without adding a configuration such as a hinge.

As described above, in the present invention, at least one configuration in which one side 21 of one opening and closing door and one side 21 of the other opening and closing door are coupled to each other is configured. In addition, since one side 21 of the opening and closing door located on both outermost sides of the plurality of opening and closing doors 20 does not need to be coupled with one side 21 of the other opening and closing door, a protruding male fixture 35 is installed. In this case, the door frame 10 cannot be effectively adhered to the side frame. Therefore, it is preferable that a rolling member 30 having arm anchors 36 is installed on one side 21 of the opening and closing door disposed at both ends.

Referring to FIG. 2, the hinge member 40 is inserted into the incision tube 41 installed to correspond to each other on the other side 22 of the two opening and closing doors, and the shaft rotation inserted into each incision tube 41 It consists of a coupler 43 and a fixing screw 46 preventing the shaft rotation coupler 43 from coming off.

The insertion tube 41 is integrally formed on the other side 22 of the one opening and closing door and the other side 22 of the other opening and closing door. In addition, the insertion incision tube 41 has a form in which a locking jaw 42 is formed by cutting a portion of the cylindrical tube at a predetermined angle, and extends along the entire longitudinal direction of the side frame along the vertical direction to the other side 22 of the opening and closing door. It is preferable to form over.

In addition, the insertion incision pipe 41 is formed biasedly near the corner where the side frames of the other side 22 of the two opening and closing doors come into contact with each other to support connecting the rotary shaft tube 44 of the shaft rotation coupler 43 to be described later. It is preferable to shorten the length of the piece 46 so that structural stability can be secured.

The shaft rotation coupler 43 is for rotating the opening/closing door 20 integrally formed with the incision tube 41 around the incision tube 41 . To this end, the shaft rotation coupler 43 is provided with a pair of rotation shaft tubes 44 rotatably inserted into each of the insertion incision tubes 41 respectively installed where the two opening and closing doors other sides 22 come into contact. do. And the pair of rotating shaft tubes 44 are coupled to each other by a support piece 46 centering on the spacer tube 45. At this time, a plurality of fastening protrusions 44a may be provided on the inner surface of the rotary shaft tube 44 in the form of a cylindrical tube, protruding with a predetermined length toward the center. In addition, as shown in FIG. 4 (B), the other side of the opening and closing door ( 22) do not collide with each other.

In addition, the fixing screw 46 is fastened to the upper and lower ends of the rotary shaft tube 44 using the fastening protrusion 44a of the rotary shaft tube 44, so that the shaft rotation coupler 43 separates from the insertion cutout tube 41. prevent it from doing

Referring to FIG. 2 , the detachable member 50 is formed on at least one end of the upper and lower ends of the other side 22 of the opening and closing door, and is preferably installed on the upper end of the other side 22 of the opening and closing door.

In the detachable member 50, a coupling cap 51, a compression spring 52, a support rod 53, a fixing clip 54, and a detachable head 55 are organically coupled to each other.

The coupling cap 51 has an accommodating groove 51a vertically penetrating, and a lower end of the accommodating groove 51a has a rim-shaped groove step 51b protruding toward the center. In addition, a coupling screw hole 51c corresponding to the support groove 23 of the opening and closing door 20 is formed on one side of the coupling cap 51 and fixed to the support groove 23 of the opening and closing door 20 through a screw. combine

The compression spring 52 is accommodated in the receiving groove 51a, and its lower end is seated and supported in the groove step 51b.

The support rod 53 is elastically supported by the compression spring 52 in the form of a rod, and a groove-shaped clip groove 53a is formed along an outer rim at its lower end, and the clip groove 53a is the coupling cap. It is formed to pass through the lower end of (51).

The fixing clip 54 is fitted into the clip groove 53a, which is a lower portion of the support bar 53.

The detachable head 55 is formed on the upper end of the support rod 53, and its lower end is formed larger than the diameter of the support rod 53 to support the upper end of the compression spring 52 supported by the support rod 53. can be configured to do so. And the top of the detachable head 55 is formed to have a smaller diameter as it goes upward, and is exposed outside the receiving groove 51a of the coupling cap 51.

In order to open the foldable door 1 of the present invention having the above configuration, first, the locking state of the locking member 60 installed on the other side 22 of the opening and closing door closed to the door frame 10 is released. Then, when holding the handle of the locking member 60 and opening the door 20, the transition from (A) to (B) in FIG. 4 is performed. That is, the two rolling members 30 coupled by the male fixture 35 and the female fixture 36 move integrally along the guide rail 11 of the door frame 10 . Corresponding to the rolling operation of the two rolling members 30, the one side 21 of the two opening and closing doors rotates around the support shaft 33 of each rolling member 30 as an axis, and eventually as shown in FIG. 4(B). Likewise, one side 21 and the other side of the two opening and closing doors both face each other and come into contact.

Corresponding to the folding progress of one side 21 of the opening and closing door as described above, the other side 22 of the opening and closing door also moves from (A) to (B) in FIG. 5 . First, as the handle of the locking member 60 is pulled, the detachable head 55 of the detachable member 50 installed on the other side 22 of the opening and closing door is the rail groove 12 that is the space between the guide rails 11. ) to escape At the same time that the detachable member 50 leaves the rail groove 12, the two other sides 22 of the opening and closing doors in contact with each other are rotatably coupled to a pair of rotary shaft tubes 44, respectively. ) The entirety of the two opening and closing doors 20 rotate in opposite directions toward one point. The other side 22 of the two opening and closing doors rotates around the pair of rotary shaft tubes 44 of the hinge member 40 so that the other side 22 and one side of the two opening and closing doors face each other as shown in FIG. 5 (B) It becomes a state of contact. At this time, the locking jaw 42 of the insertion incision tube 41 is caught on the support piece 46 connecting the pair of rotation shaft tubes 44 of the shaft rotation coupler 43 to rotate the opening and closing door 20. impede

Optimal embodiments have been disclosed in the drawings and specifications, and specific terms have been used, but they are only used for the purpose of describing the embodiments of the present invention, and are used to limit the meaning or scope of the present invention described in the claims. it didn't happen Therefore, those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

1: folding door
10: door frame 11: guide rail
12: Rail home
20: opening and closing door 21: one side of the opening and closing door
22: other side of opening and closing door 23: support groove
30: rolling member 31: support body
31a: support through hole 32: roller
60: locking member

Claims (4)

Sliding is possible along the guide rail 11 of the door frame 10 through the rolling member 30 installed on one side, and rotatably installed with other neighboring doors 20 by the hinge member 40 installed on the other side In the folding door 1 including a configuration in which a plurality of opening and closing doors 20 are collapsibly provided,
A support body 31, a roller 32 rotatably installed on the support body 31 and in rolling contact along the guide rail 11, and a support shaft having one side connected to the support body 31 ( 33) and the other side of the support shaft 33 are rotatably connected to the cap through hole 34a to fix and support the support body 31 to which the roller 32 is coupled to the opening and closing door 20. The one side of the rolling member 30 including a cap 34 is provided on the one opening and closing door 20 and the other opening and closing door 20 facing each other,
A male fixture 35 is protruded from the support body 31 installed on one side 21 of the one opening and closing door, and the support body 31 installed on one side 21 of the other opening and closing door has the above A groove-shaped female fixture 36 corresponding to the male fixture 35 is formed, and through the combination of the male fixture 35 and the female fixture 36, one side 21 of the opening and closing door and the other One side 21 of the opening and closing door is coupled to each other, and each side 21 of the opening and closing door rotates around the support shaft 33 as an axis.
According to claim 1,
The hinge member 40,
An insertion incision tube 41 formed by cutting a portion of the cylindrical tube at a predetermined angle to form a locking jaw 42 is fixedly installed on the other side 22 of the one opening and closing door and the other side 22 of the other opening and closing door, respectively. , The rotation shaft of the shaft rotation coupler 43, in which a pair of rotation shaft tubes 44 having fastening protrusions 44a toward the center are connected to the spacer tube 45 by the support piece 46 on the inner surface of the cylindrical tube. The tube 44 is inserted into the incision tube 41, and the fixing screws 47 are screwed into the upper and lower parts of the rotary shaft tube 44 to prevent the shaft rotation coupler 43 from leaving. folding door.
According to claim 1,
At least one end of the upper and lower ends of the other side 22 of the opening and closing door,
A coupling cap 51 fixedly supported by the opening and closing door 20 by forming an accommodation groove 51a, a compression spring 52 seated in the groove step 51b of the accommodation groove 51a, and the groove step The support rod 53 elastically supported by the compression spring 52 through the fixing clip 54 supported by (51b) and connected to the support rod 53 so as to be exposed outside the receiving groove 51a to open and close the door ( 20) A folding door in which a detachable member 50 composed of a detachable head 55 elastically detached from the frame groove of the guide rail 11 when opening and closing is installed.
According to claim 1,
At least one structure in which one side 21 of the opening and closing door comes into contact with each other by moving along the guide rail 11 of the door frame 10 is installed,
Among the plurality of opening and closing doors 20 moving along the guide rail 11 of the door frame 10, one side 21 of the opening and closing door disposed at both ends has the rolling member provided with the arm fixture 36 ( 30) is installed on the folding door.

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