Coupler for hinged door

Abstract

The present invention relates to a coupler for connecting a rotary door used as an entrance door to a hinge unit. The present embodiment is a coupler that guides the rotation of a door by connecting a hinge unit mounted on a door frame and a door supported by the door frame. It comprises a rotary block that is fastened to a rotary protrusion of the hinge unit and rotates according to the driving of the hinge unit; an extension frame having a predetermined length, one end of which is coupled to the rotary block and the other end of which is extended along the longitudinal direction of a door frame provided at the top of the door and rotates together with the rotary block; a guide frame that is fastened to the other end of the extension frame to be located in the internal space of the door frame and pushes the inner wall of the door frame according to the rotation of the extension frame to guide the rotation of the door; and a coupling block that is coupled to the lower end of the rotary block and provides a rotational center axis by coupling a rotary shaft module mounted on the door frame. It is configured to guide rotation by transmitting the rotational power of the hinge unit to the door at a position spaced apart from the rotational center axis of the hinge unit and the door.

Description

Technology Field

[0001] The present invention relates to a coupler for a rotating door, and more specifically, to a coupler for connecting a rotating door used as an entrance door to a hinge unit. Background Technology

[0002] Generally, in multi-unit dwellings such as apartments or villas, an additional middle door is installed alongside the main entrance door to separate the entrance from the living room or to provide insulation between the interior and exterior. Recently, while middle doors are often installed simultaneously with the construction of a building (house), they are also frequently installed as an add-on at the request of residents in already completed buildings.

[0003] When installing an additional interior door, interlocking sliding doors were primarily installed because the floor surface cannot be removed for the purpose, allowing for relatively easy frame installation. However, recently, due to advancements in construction technology and the development of various frames, hinged rotary doors that can be installed without damaging the interior floor surface are also being widely installed.

[0004] Referring to FIG. 1, the rotary door device is constructed by installing a door frame (20) that supports the door (10) along both sides, the upper surface, and the lower surface of the entrance door, and by fastening a door frame (11) provided at the edge of the door (10) to the door frame (20). A hinge unit (30) is installed between the door (10) and the door frame (20), and the hinge unit (30) controls the rotational speed together with the reciprocating rotation of the door (10) to ensure safe opening and closing.

[0005] Such a rotary door device must be installed so that the door (10) maintains a horizontal position during reciprocating rotation, and when closed, it must be installed to form a straight line aligned with the door frame (20). If the rotation of the door (10) does not maintain a horizontal position, interference may occur with the door frame (20), thereby hindering opening and closing or causing noise during the opening and closing operation. Additionally, if the door frame (11) is not aligned with the door frame (20) when the door (10) is closed, the interior and exterior are not completely shielded, resulting in a problem where the door cannot properly perform its function.

[0006] Meanwhile, in conventional rotary door devices, the horizontal and straight structure of the door (10) becomes distorted due to frequent use even after installation. This is because the door (10) is made of a heavy material such as tempered glass or metal, and the hinge unit (30), which serves as the rotational center axis (C) of the door (10), is connected at one end of the door (10), causing the load to be unevenly distributed and resulting in a large load. Therefore, in conventional rotary door devices, a strong load is constantly applied to the hinge unit (30), which serves as the rotational center axis (C), causing the horizontal and straight structure between the door (10) and the door frame (20) to easily become distorted.

[0007] In addition, conventional rotary door devices have significant difficulties in maintenance work, such as when the horizontal and straight structure between the door (10) and the door frame (20) is misaligned, the door (10) must be separated from the door frame (20), the hinge unit (30) must be replaced, and then re-installed. Prior art literature

[0008] Korean Published Patent Application No. 2022-0138623 Korean Published Patent Application No. 2011-0130326 The problem to be solved

[0009] The present invention is proposed to solve the above-mentioned problems and aims to provide a coupler for a rotary door that enables the door to stably maintain a horizontal and straight line even during repeated opening and closing of the rotary door.

[0010] In addition, the present invention aims to provide a coupler for a rotating door that can reduce the load applied to the rotational center axis by separating the rotational center axis of the door from the position where rotational power is transmitted by a predetermined distance.

[0011] In addition, the present invention aims to provide a coupler for a rotary door that can be easily repaired even when the horizontal and vertical alignment of the door is misaligned. means of solving the problem

[0012] The coupler for a rotating door according to the present embodiment for solving the above-mentioned problem is a coupler that guides the rotation of a door by connecting a hinge unit mounted on a door frame and a door supported by the door frame, and comprises a rotating block that is fastened to a rotating protrusion of the hinge unit and rotates according to the driving of the hinge unit; an extension frame having a predetermined length, one end of which is coupled to the rotating block and the other end of which is extended along the longitudinal direction of a door frame provided at the top of the door and rotates together with the rotating block; a guide frame that is fastened to the other end of the extension frame to be located in the internal space of the door frame and pushes the inner wall of the door frame according to the rotation of the extension frame to guide the rotation of the door; and a coupling block that is coupled to the lower end of the rotating block and provides a rotational center axis by coupling a rotational shaft module mounted on the door frame, and is configured to guide rotation by transmitting the rotational power of the hinge unit to the door at a position spaced apart from the rotational center axis of the hinge unit and the door.

[0013] In addition, the guide frame includes a guide roller made of an elastic material coupled to an end, and the outer surface end of the guide roller can push against the inner wall of the door frame to guide the rotation of the door.

[0014] In addition, the guide frame is formed to have a predetermined length along the longitudinal direction of the extension frame, and the guide rollers can be joined to face each other at both ends of the guide frame.

[0015] In addition, a pair of the above guide rollers can be installed in a direction perpendicular to the inner wall of the door frame so as to absorb vertical movement of the door.

[0016] Additionally, the extension frame may be configured to have first and second bolt holes formed along the longitudinal direction and an adjustment groove formed at the end, and the guide frame may have third and fourth bolt holes formed at positions corresponding to the bolt holes of the extension frame and an adjustment protrusion formed at positions corresponding to the adjustment groove, and the second and fourth bolt holes and the adjustment groove may be formed to have a length in the width direction of the frame so as to be configured to adjust the direction of the guide frame relative to the direction of the extension frame. Effects of the invention

[0017] The present invention allows the door to open and close stably by reducing the load applied to the hinge unit and the door's rotation axis module by separating the door's rotation center axis and the position where rotational driving force is transmitted to the door by a predetermined distance.

[0018] In addition, the present invention allows for fine adjustment of the direction of the door relative to the door frame, thereby facilitating the installation and maintenance of the door. Brief explanation of the drawing

[0019] FIG. 1 is a front view showing a rotary door device according to the prior art, FIG. 2 is a front view showing a rotary door device according to the present embodiment, FIG. 3 is an enlarged view showing the fastening structure of the door and door frame of FIG. 2. FIG. 4 is a perspective view showing a door coupler according to the present embodiment, FIG. 5 is an exploded view showing the door coupler of FIG. 4. FIG. 6 is a plan view showing the door coupler of FIG. 4, FIG. 7 is a plan view showing an example of vertical direction adjustment of a door coupler according to the present embodiment. Specific details for implementing the invention

[0020] The technical problems achieved by the present invention and its implementation will be clarified by the preferred embodiments described below. Hereinafter, preferred embodiments of the present invention will be examined in detail with reference to the attached drawings.

[0021] It should be understood that the differences in the embodiments described below are not mutually exclusive. That is, without departing from the technical spirit and scope of the present invention, specific shapes, structures, and characteristics described may be implemented in other embodiments in relation to one embodiment, and the location or arrangement of individual components within each disclosed embodiment may be changed. It should also be understood that similar reference numerals in the drawings refer to the same or similar functions across various aspects, and lengths, areas, thicknesses, etc., and their shapes may be exaggerated for convenience. In the description of the embodiments, expressions such as "top," "bottom," "first," "second," etc., indicate relative positions, directions, or order, and their technical significance is not bound by their dictionary meanings.

[0022] FIG. 2 is a front view showing a rotary door device according to the present embodiment, and FIG. 3 is an enlarged view showing the fastening structure of the door and the door frame, which is the main part of FIG. 2.

[0023] Referring to these drawings, the rotary door device of the present embodiment includes a door (100) having frames along the edges, a door frame (200) installed along both sides, the upper surface, and the lower surface of the entrance door to support the door (100), a hinge unit (300) installed on the door frame (200) on the upper surface, and a door coupler (400) installed to connect the door (100) and the hinge unit (300).

[0024] The door (100) reciprocates around a rotational center axis (C) on one side to open and close the entrance. The door (100) may be made of tempered glass, and frames are fastened along the edges to form a structure that protects the tempered glass. The door (100) may consist of only one main door (100-1) that is opened and closed at all times, or it may additionally include an auxiliary door (100-2) that remains closed normally and is opened and closed as needed.

[0025] The door frame (200) is pre-installed on both sides, the upper surface, and the lower surface of the entrance to provide a structure that supports the door (100). It is preferable that the door frame (200) be installed to minimize damage to the wall and floor surfaces of the entrance, and on the lower surface (floor surface), it may be installed only in the minimum area where the rotation axis of the door (100) is mounted. The door frame (200) may form a structure in which a plurality of plates are assembled, and the door frame (200) on the upper surface provides a space for mounting a hinge unit (300).

[0026] The hinge unit (300) is a component that controls the rotational speed when the door (100) is opened or closed. The hinge unit (300) is mounted in the interior space of the door frame (200) and provides a rotational center axis (C) along the vertical direction of the rotational projection (310).

[0027] The door coupler (400) connects the door (100) and the hinge unit (300) to each other, aligns their rotational center axis (C), and transmits rotational power of the hinge unit (300) to the door (100). The door coupler (400) causes the rotational center axis for the rotation of the door (100) and the rotational power axis to which rotational power is applied to the door to be spaced apart from each other to form different axes. A door frame (110) that receives rotational power is provided at the upper part of the door (100), and a rotational axis module (500) that forms the rotational center axis (C) of the door (100) is mounted on one side of the internal space of the door frame (110). Below, the door coupler (400) that connects the door (100) and the hinge unit (300) will be examined in detail.

[0028] FIG. 4 is a perspective view showing a door coupler according to the present embodiment, FIG. 5 is an exploded view showing the door coupler of FIG. 4, FIG. 6 is a plan view showing the door coupler of FIG. 4, and FIG. 7 is a plan view showing an example of vertical direction adjustment of the door coupler according to the present embodiment.

[0029] First, referring to FIGS. 4 and 5, the door coupler (400) of the present embodiment includes a rotating block (410) that rotates by being connected to a rotating protrusion (310) of a hinge unit (300), an extension frame (420) that is fixedly connected to the rotating block (410) and extends to a predetermined length along the longitudinal direction of the door frame (110), a guide frame (430) connected to the end of the extension frame (420), a guide roller (440) connected to the guide frame (430), and a coupling block (450) connected to the lower part of the rotating block (410). The door coupler (400) with the above configuration is connected between the hinge unit (300) and the rotation axis module (500) and guides the reciprocating rotation of the door (100) according to the driving of the hinge unit (300).

[0030] Specifically, the rotating block (410) is configured to be connected to the rotating protrusion (310) of the hinge unit (300) to receive rotational power, and reciprocating rotation is performed at a predetermined angle together with the rotating protrusion (310) according to the driving of the hinge unit (300). For this purpose, the rotating block (410) has a cylindrical shape having a predetermined diameter, and a protrusion fastening groove (411) into which the rotating protrusion (310) is inserted is formed at the center of the upper part. The rotating protrusion (310) can have a polygonal or elliptical column shape, and the protrusion fastening groove (411) has a polygonal or elliptical groove shape corresponding to the rotating protrusion (310). Accordingly, as the rotating protrusion (310) is inserted into the protrusion fastening groove (411), the rotating block (410) is fastened to the rotating protrusion (310), and the rotating block (410) rotates around the rotating protrusion (310) as a central axis according to the driving of the hinge unit (300).

[0031] Additionally, the rotating block (410) has a block fastening groove (412) formed in its lower portion into which a coupling block (450) is inserted. It is preferable that the block fastening groove (412) be formed in a polygonal or elliptical shape so that it can be fastened to the rotating block (410) and rotate together, and the head portion (451) of the coupling block (450) may also be formed in a polygonal or elliptical shape corresponding to the block fastening groove (412).

[0032] The extension frame (420) is configured to transmit the rotational power of the rotation block (410) to the door (100) at a position spaced apart from the rotation center axis (C), and is composed of a frame having a predetermined length. One end of the extension frame (420) is fixedly coupled to the outer surface of the rotation block (410), and the other end is connected to a guide frame (430) at a predetermined position along the longitudinal direction of the door frame (110). The extension frame (420) is coupled to the rotation block (410) so as to overlap in a direction parallel to the longitudinal direction of the door frame (110), and rotates together with the rotation block (410) by driving the hinge unit (300).

[0033] A guide frame (430) is attached to the end of an extension frame (420) and guides the door frame (110) to rotate together with the door (100) by pushing it according to the rotation of the rotation block (410). For this purpose, the guide frame (430) is attached to the end of the extension frame (420) such that its lower end is positioned in the internal space (111) of the door frame (110), and a guide roller (440) that adheres to the inner wall of the door frame (110) is attached to the lower end.

[0034] Additionally, the guide frame (430) may be configured as a frame having a predetermined length along the longitudinal direction of the extension frame (420), and the guide rollers (440) are attached to both ends of the guide frame (430). A pair of guide rollers (440) are installed facing each other, with the ends of their outer surfaces perpendicular to the inner wall of the door frame (110). Accordingly, the pair of guide rollers (440) are spaced apart at a predetermined distance, and their outer surfaces are in close contact with the inner wall of the door frame (110), thereby pushing the door frame (110) and rotating the door (100) according to the rotation of the rotation block (410). At this time, it is preferable that the guide rollers (440) be composed of an elastic material capable of cushioning impact, such as silicone, resin, or rubber.

[0035] Meanwhile, during the rotation of the door (100), slight vertical movement may occur. The guide roller (440) absorbs the vertical movement of the door (100) to ensure smooth movement, and simultaneously blocks the vertical movement of the door (100) from being transmitted to the rotation block (410) through the guide frame (430) and the extension frame (420). Therefore, the rotation center axis (C) of the hinge unit (300) and the rotation block (410) does not receive external force due to the vertical movement of the door (100), thereby improving durability and enabling stable operation. In particular, since the vertical movement of the door (100) becomes larger as it moves further away from the rotation center axis (C), the guide roller (440) is configured to absorb this movement and block it from being transmitted to the rotation center axis (C).

[0036] The coupling block (450) is configured to provide a rotational center axis (C) of the door (100) by combining the rotational axis module (500). The coupling block (450) may be composed of a head portion (451) coupled to the rotational block (410) and a projection portion (452) coupled to the sliding block (540), and the head portion (451) and the projection portion (452) may form a column shape with a stepped structure while having different diameters. The head portion (451) may have an outer surface that forms a polygonal or elliptical shape corresponding to the block fastening groove (412) so that it can be inserted into the block fastening groove (412) of the rotational block (410). After the upper head portion (451) of the coupling block (450) is inserted into the block fastening groove (412), the coupling with the rotational block (410) can be fixed by a fixing pin (453).

[0037] Additionally, the coupling block (450) is coupled with the rotational axis module (500) as the lower projection (452) is inserted into the central axis hole (541) of the sliding block (540), and provides a rotational central axis (C) to the rotational axis module (500). Accordingly, the rotational projection (310) of the hinge unit (300), the projection (452) of the coupling block (450), and the central axis hole (541) of the sliding block (540) form the same rotational central axis (C).

[0038] The door coupler (400) with the above configuration can reduce the load applied to the rotational center axis (C) of the hinge unit (300) and the rotational axis module (500) by separating the position of the rotational power shaft, which transmits rotational power to the door (100), from the rotational center axis (C) of the door (100) by a predetermined distance, and can stably open and close the door (100) and improve the durability of the hinge unit (300).

[0039] Here, the rotation axis module (500) is configured to be mounted on the door frame (110) to form the rotation center axis (C) of the door (100) and to vary the position of the rotation center axis (C) of the door (100) as needed. For this purpose, the rotation axis module (500) may include a pair of first brackets (510) of a vertical structure to be fastened to the door frame (110), a second bracket (520) of a horizontal structure fastened to the first bracket (510), a sliding bar (530) fastened to the first bracket (510) at the bottom of the second bracket (520), and a sliding block (540) fastened to the sliding bar (530).

[0040] A pair of first brackets (510) are fastened to the door frame (110) so as to face each other at a predetermined distance while forming a vertical structure in the shape of an 'ㄱ', and a second bracket (520) and a sliding bar (530) having a horizontal structure are fastened to the upper and lower parts between the pair of first brackets (510). The second bracket (520) is formed with a block fastening hole (521) having a predetermined length so that a sliding block (540) can be coupled thereto.

[0041] The sliding block (540) has a column shape with a predetermined diameter, and a coupling groove (540) is formed on the upper part into which a projection (452) of the coupling block (450) is inserted, and is fastened to the second bracket (520) so as to be supported by the sliding bar (530). At this time, the sliding block (540) can be slidably moved at a predetermined distance along the length direction of the second bracket (520) and the sliding bar (530).

[0042] Accordingly, the rotational axis module (500) can adjust the connection position by moving the sliding block (540) along the sliding bar (530) so that the projection (452) of the coupling block (450) can be inserted into the coupling groove (541) of the sliding block (540). In addition, the rotational axis module (500) can finely adjust the position of the rotational center axis (C) of the door (100) by varying the position of the sliding block (540).

[0043] Meanwhile, the door (100) must be installed so as to form a straight line aligned with the door frame (200) when closed, and a problem may arise where the straight line structure becomes distorted due to repeated use. To this end, the door coupler (400) of the present embodiment is configured to finely adjust the direction of the door (100) so as to align it with the length direction of the door frame (200).

[0044] Referring to FIGS. 5 and 6, the door frame (110) is fastened so that the extension frame (420) and the guide frame (430) face in the longitudinal direction, and at this time, a bolt member (460) may be used as a fastening means.

[0045] Specifically, the extension frame (420) has at least two bolt holes formed at predetermined intervals along the length direction, into which bolt members (460) are fastened. Generally, the bolt holes can have a circular shape, and one bolt hole has an elliptical or track shape with a length in the width direction of the extension frame (420). The bolt holes of this embodiment are composed of first to third bolt holes (421, 422, 423), and the innermost third bolt hole (423) has a track shape.

[0046] Additionally, the extension frame (420) has an adjustment groove (424) formed at its end, having a length in the width direction. The adjustment groove (424) allows the adjustment projection (434) of the guide frame (430) to be inserted so that the guide frame (430) can rotate within a predetermined range of rotation angles.

[0047] The guide frame (430) has at least two bolt holes formed corresponding to the bolt holes of the extension frame (420), and, for example, circular fourth to sixth bolt holes (431, 432, 433) may be formed. Additionally, an adjustment protrusion (434) is formed on the upper surface of the guide frame (430) at a position corresponding to the adjustment groove (424) of the extension frame (420).

[0048] Referring to FIG. 7, the process of connecting them is as follows: as in (a), the adjusting protrusion (434) of the guide frame (430) is positioned in the center of the adjusting groove (424) of the extension frame (420), and then the bolt member (460) is connected to the first and second bolt holes (421, 422) and the fourth and fifth bolt holes (431, 432) to connect the extension frame (420) and the guide frame (430). At this time, since the first and fourth bolt holes (421, 431) and the second and fifth bolt holes (422, 432) are arranged parallel to each other along the longitudinal direction, the guide frame (430) is also positioned parallel to the extension frame, and consequently, the door (100) is also positioned along the longitudinal direction of the extension frame (420) to form a straight line on the same line as the door frame (200).

[0049] However, if the door (100) and the door frame (200) do not form a straight line due to the environment in which the door and the door frame are installed during construction or due to repeated use after construction, it is necessary to adjust them. Since the third and sixth bolt holes (423, 433) and the adjustment groove (424) have a predetermined length in the width direction, the guide frame (430) can be fastened to have a predetermined rotation angle with respect to the extension frame (420). That is, after adjusting the guide frame (430) so that it faces one side direction as in (b) of FIG. 7 or the other side direction as in (c) based on the length direction of the extension frame (420), a bolt member (460) is fastened to the first and fourth bolt holes (421, 431) and the third and sixth bolt holes (423, 433). In this way, the direction of the guide frame (430) is adjusted to one side or the other side, and accordingly, the direction of the door (100) is also finely adjusted so that the door (100) and the door frame (200) form a straight line. At this time, the position of the sliding block (540) of the rotation axis module (500) is adjusted together so that the direction of the door (100) can be adjusted.

[0050] In the direction adjustment of the guide frame (430), two circular first and second bolt holes and one track-shaped third bolt hole are exemplified, but a configuration in which adjustment is made by one circular first bolt hole and one track-shaped second bolt hole is also possible.

[0051] In this way, the door coupler (400) of the present embodiment is configured to allow fine adjustment of the direction of the guide frame (430), thereby enabling easy adjustment of the direction of the door (100) during the construction or repair process, and consequently, easy construction and repair of the door.

[0052] As described above, exemplary embodiments of the present invention have been illustrated and described; however, various modifications and other embodiments may be made by those skilled in the art. Such modifications and other embodiments are all taken into account and included in the appended claims and do not depart from the true spirit and scope of the present invention. Explanation of the symbols

[0053] 100 : Door 110 : Door frame 111 : Interior space 200 : Door frame 300: Hinge unit 310: Rotating projection 400 : Door coupler 410 : Rotating Block 411: Protrusion fastening groove 412: Block fastening groove 420: Extension frame 430: Guide frame 421, 422, 423, 431, 432, 433: Bolt holes 440: Guide roller 450 : Coupling block 451 : Head part 452 : Protrusion 453 : Fixing pin 460: Bolt member 500 : Rotation axis module 510: 1st bracket 520: 2nd bracket 530 : Sliding bar 540 : Sliding block

Claims

Claim 1 A coupler for a rotating door, configured to transmit rotational power of the hinge unit to the door, comprising: a rotating block connected to a rotating protrusion of the hinge unit and rotating according to the driving of the hinge unit; an extension frame having a predetermined length, wherein one end of the extension frame is connected to the rotating block and the other end extends along the longitudinal direction of the door frame and rotates together with the rotating block; a guide frame connected to the other end of the extension frame so as to be located in the internal space of the door frame, and which pushes the inner wall of the door frame according to the rotation of the extension frame to guide the rotation of the door; and a coupling block composed of a head portion connected to the rotating block and a protrusion portion extending from the lower end of the head portion, which connects the rotating block to the protrusion portion to align the rotational center axis of the rotating block and the rotating block. Claim 2 A coupler for a rotating door according to claim 1, wherein the guide frame includes a guide roller made of an elastic material coupled to an end, and the outer circumferential end of the guide roller pushes the inner wall of the door frame to guide the rotation of the door. Claim 3 A coupler for a rotary door according to claim 2, wherein the guide frame is formed to have a predetermined length along the longitudinal direction of the extension frame, and the guide rollers are coupled to face each other at both ends of the guide frame. Claim 4 A coupler for a rotary door according to claim 3, wherein a pair of guide rollers are installed in a direction perpendicular to the inner wall of the door frame so as to absorb vertical movement of the door. Claim 5 A coupler for a rotary door according to claim 3, wherein the extension frame has first and second bolt holes formed along the longitudinal direction and an adjustment groove formed at the end, and the guide frame has third and fourth bolt holes formed at positions corresponding to the bolt holes of the extension frame and an adjustment protrusion formed at positions corresponding to the adjustment groove, and the second and fourth bolt holes and the adjustment groove are formed to have a length in the width direction of the frame so as to be configured to adjust the direction of the guide frame with respect to the direction of the extension frame.

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