Bracket for constructing a coffered ceiling with a lightweight steel frame system

Abstract

The present invention relates to a bracket for structurally stably and easily connecting and supporting two planes of different heights when constructing a coffered ceiling, which is installed to improve aesthetics and functionality in living rooms of residential or commercial spaces, using lightweight steel instead of the conventional wooden method.

Description

Technology Field

[0001] The present invention relates to a bracket for structurally stably and easily connecting and supporting two planes of different heights when constructing a coffered ceiling, which is installed to improve aesthetics and functionality in living rooms of residential or commercial spaces, using lightweight steel instead of the conventional wooden method. Background Technology

[0003] Generally, interior ceilings in residential spaces such as apartments and detached houses, or commercial spaces such as hotels and luxury offices, are finished in various forms to go beyond a simple flat structure, add a sense of three-dimensionality, and make the space appear larger.

[0004] Among them, the coffered ceiling is a structure that creates a sense of three-dimensional depth by making the center of the ceiling higher than the edges; it is widely preferred because it creates a luxurious atmosphere and makes it easy to embed indirect lighting (light boxes) or system air conditioners in the raised central space.

[0005] Traditionally, it was common to construct these coffered ceilings using wooden square timbers. Specifically, the method involves forming wooden frames beneath the concrete slab to create the lower flat edges and the higher flat center of the ceiling, connecting the vertical sections between the two frames with timber to form the overall framework, and then attaching finishing materials such as gypsum board on top.

[0006] However, this traditional construction method using wood has several problems, such as the following.

[0007] First, it is vulnerable to moisture. Due to the nature of the material, wood repeatedly shrinks and expands in response to changes in humidity, and over time, deformations such as warping, bending, and cracking may occur. Such deformation of the wooden frame is the main cause of defects, such as cracking at the joints of finishing materials attached thereto, like gypsum board, or causing the surface to lift.

[0008] Second, it is vulnerable to fire. Since wood is a combustible material, it acts as a medium for combustion when a fire occurs, increasing the risk of fire spread. With the recent strengthening of fire safety standards for buildings, there is a trend requiring the use of non-combustible or semi-non-combustible materials; however, the use of wood does not align with this trend.

[0009] Third, construction quality depends heavily on the skill level of the contractor, resulting in low productivity. The fabrication of precise frames using wood requires skilled techniques, and on-site cutting, assembly, and fastening tasks consume a significant amount of time and effort. This can lead to uneven construction quality and cause the construction period to be prolonged.

[0010] To overcome the disadvantages of wood, lightweight steel frame systems made of galvanized steel are widely used for general flat ceiling construction these days. Lightweight steel frames have significant advantages, such as resistance to deformation due to moisture, fire safety as a non-combustible material, and the ability to ensure fast construction and uniform quality by using standardized components.

[0011] However, since such lightweight steel frame systems are fundamentally designed for single-plane ceiling construction, there were structural limitations in applying them directly to coffered ceilings where a distinct height difference, or 'step,' exists between the center and the edges.

[0012] It was very difficult to firmly and accurately connect two horizontal structures of different heights (central embar and edge embar) using only existing lightweight steel members. To solve this, steel members were often arbitrarily cut and bent on-site or fixed by fastening screws in complex ways, but this significantly reduced work efficiency and made it difficult to guarantee structural stability. In addition, there was a problem where it was difficult to achieve precise vertical and horizontal alignment, which negatively affected the quality of the final finish.

[0013] Therefore, there is an urgent need to develop new connecting members that can implement the stepped structure characteristic of coffered ceilings simply, precisely, and structurally robustly, while preserving the advantages of lightweight steel frame systems, such as durability, fire resistance, and ease of construction. Prior art literature

[0015] Korean Intellectual Property Office Registered Patent Publication No. 10-1069588, "Installation structure for light steel frame ceiling system" Korean Intellectual Property Office Published Patent Publication No. 10-2012-0082801, "Connecting member for installation of light steel frame ceiling system" Korean Intellectual Property Office Published Patent Publication No. 10-2022-0143242, "Fixing clip for stepped ceiling finishing and stepped ceiling structure using the same and method of construction thereof" The problem to be solved

[0016] The present invention has been devised to solve the problems of the prior art described above, and the objective of the present invention is to provide a bracket capable of structurally and stably connecting the stepped portions between the central ceiling section and the edge section, which have different heights, when constructing a coffered ceiling using a lightweight steel frame system.

[0017] In addition, the purpose of the present invention is to significantly improve work efficiency and ensure uniform finishing quality by eliminating inefficient work such as arbitrary cutting, bending, and complex fastening of pieces at the construction site, and by enabling anyone to easily and quickly perform precise construction through standardized brackets. means of solving the problem

[0019] To achieve the above objective, the bracket for constructing a lightweight steel frame type well-shaped ceiling according to the present invention comprises: a bracket (100) for constructing a lightweight steel frame type well-shaped ceiling, a vertical part (120) in the shape of a plate that is erected vertically; and an upper fastening part (110) that is horizontally bent to one side from the upper end of the vertical part (120) and fastened to a central frame (20). It includes a lower fastening part (130) that is horizontally bent in the opposite direction to the upper fastening part (110) at the bottom of the vertical part (120) and fastened to the edge frame (30) of the well-shaped ceiling; wherein the lower fastening part (130) is configured to selectively fasten to the embar (33) in different directions without changing the direction of the bracket (100) by providing a first locking projection (131) formed on the edge facing the vertical part (120) to be coupled parallel to the length direction of the embar (33) constituting the edge frame (30), and a second locking projection (132) formed on both edges of the lower fastening part (130) to be coupled perpendicular to the length direction of the embar (33).

[0020] In addition, a bracket for constructing a lightweight steel frame type well-shaped ceiling according to another embodiment of the present invention comprises: a vertical portion (120) in the shape of a plate that is vertically erected; a lower fastening portion (130) that is horizontally bent to one side from the bottom of the vertical portion (120) and fastened to the edge frame (30) of the well-shaped ceiling; and an upper fastening portion (110) that extends upward from the vertical portion (120), is bent to match the step height of the construction site, and is fastened to the central frame (20); and a plurality of slots (140) arranged at a predetermined interval in the vertical and horizontal directions may be formed in the boundary area between the vertical portion (120) and the upper fastening portion (110) so that a locking projection of an unused carrier is inserted and serves as a guide for the unused carrier to bend the upper fastening portion (110).

[0021] At this time, support pieces (133) are formed on both lower sides of the vertical section (120) through a cut section (121) in which a part of the vertical section (120) is cut, so that they normally form the same plane as the vertical section (120) and can be bent forward and protruded when necessary, and the support pieces (133) support the lower end of the stepped section finishing panel (41) attached to the vertical section (120).

[0022] In addition, the plurality of slots (140) are characterized by the fact that the rows of slots (140) arranged in a horizontal direction are arranged in a zigzag shape that is staggered relative to other rows of adjacent slots (140) above and below.

[0023] In addition, the unused carrier is characterized by having the same specifications as the central carrier (21) or the edge carrier (31).

[0024] In addition, the slot (140) is characterized by having a trapezoidal shape in which the height of one vertical side in the insertion direction is higher than the height of the other vertical side so that the locking projection of the carrier can be easily inserted. Effects of the invention

[0026] The present invention, configured as described above, can structurally and precisely connect two frames of different heights when constructing a coffered ceiling using lightweight steel frames.

[0027] By using standardized brackets made of non-combustible and non-deformable materials, the disadvantages of wood construction, such as deformation due to moisture or fire hazards, are fundamentally eliminated, and defects such as cracking and lifting of finishing materials are prevented, thereby dramatically improving the durability and safety of the ceiling.

[0028] In addition, the present invention can maximize construction efficiency by eliminating complex cutting and processing operations at the construction site.

[0029] Regardless of the worker's skill level, anyone can perform construction of uniform quality quickly and easily, resulting in significant reductions in construction time and labor costs. In particular, it offers exceptional work convenience and versatility by flexibly adapting to diverse site conditions through features such as a joint structure responsive to M-bars in various directions, support pieces for temporarily holding finishing panels, and a slot structure that allows for on-site adjustment of step heights. Brief explanation of the drawing

[0031] FIG. 1 is a perspective view illustrating a bracket according to a first embodiment of the present invention. FIG. 2 is a side view illustrating a lightweight steel type well-shaped ceiling frame. FIG. 3 is a plan perspective view illustrating a lightweight steel type well-shaped ceiling frame. FIG. 4 is a planar perspective view showing the bracket of the present invention installed on the stepped portion of a well-shaped ceiling frame. FIG. 5 is a planar perspective view showing an enlarged portion of FIG. 4. FIG. 6 is a bottom perspective view of a well-shaped ceiling frame showing a state in which a finishing panel is attached to the vertical part and the lower fastening part of a bracket. FIG. 7 is a bottom perspective view of a coffered ceiling frame showing a state in which a finishing panel is attached to the central frame. FIG. 8 is a bottom perspective view of a coffered ceiling frame showing a state in which a finishing panel is attached to the edge frame. FIG. 9 is a bottom perspective view illustrating the state in which a support piece of a bracket according to the present invention is unfolded to support a finishing panel that is fastened to a vertical part. FIG. 10 is a perspective view illustrating a bracket according to a second embodiment of the present invention. FIG. 11 is a perspective view illustrating the state of inserting a locking projection of a carrier into a slot of a bracket according to a second embodiment of the present invention. FIG. 12 is a perspective view illustrating the state in which the upper fastening part is bent by combining a bracket and a carrier according to a second embodiment of the present invention. FIG. 13 is an enlarged view of the slot of a bracket according to a second embodiment of the present invention. Specific details for implementing the invention

[0032] Hereinafter, the present invention will be described in detail with reference to preferred embodiments of the invention and the accompanying drawings, under the premise that identical reference numerals in the drawings refer to identical components.

[0033] When a component is described as "comprising" another component in the detailed description of the invention or the claims, this shall not be interpreted as being limited to being composed solely of said component unless specifically stated otherwise, but shall be understood as potentially including additional components.

[0034] FIG. 1 is a perspective view illustrating a bracket according to a first embodiment of the present invention.

[0035] As shown in FIG. 1, the bracket (100) according to the first embodiment of the present invention has a vertical section (120) formed in the shape of a wall, the upper end of the vertical section (120) is horizontally bent and extended to one side to form an upper fastening section (110), and the lower end of the vertical section (120) is horizontally bent and extended to the other side to form a lower fastening section (130).

[0036] Hereinafter, the direction in which the upper fastening part (110) is formed based on the vertical part (120) is referred to as 'upward', and the direction in which the lower fastening part (130) is formed is referred to as 'downward'. The direction in which the upper fastening part (110) is bent from the vertical part (120) is referred to as 'forward', and the direction in which the lower fastening part (130) is bent is referred to as 'rearward'.

[0037] As shown in FIGS. 2 and 3, a central frame (20) is fixed to a slab (10) by a hanger (11) in the center of the ceiling of the room, and an edge frame (30) is fixed to a slab (10) by a hanger (11) at an edge of the central frame (20) at a position lower than the central frame (20).

[0038] As described above, a certain height difference is formed between the central frame (20) and the edge frame (30). When connecting the central frame (20) and the edge frame (30) that have a height difference, the bracket (100) of the present invention is used.

[0039] The central frame (20) is connected to the upper fastening part (110) of the bracket (100), and the edge frame part (30) is connected to the lower fastening part (130) of the bracket (100).

[0040] As shown in FIGS. 2 and 3, the central frame (20) is secured and fixed to the hanger (11) at predetermined intervals by the central carrier (21), and the central embar (23) is secured to the central carrier (21) at predetermined intervals so as to be orthogonal to the central carrier (21).

[0041] At this time, by engaging the locking projection (22) of the central carrier (21) with the locking holes (24) formed on both sides of the central embar (23) to secure it, the central embar (23) is secured to the central carrier (21), thereby forming a grid-shaped central frame (20).

[0042] Likewise, by engaging the hooking projection (32) of the edge carrier (31) with the hooking holes (34) formed on both sides of the edge portion embar (33) to secure it, the edge portion embar (33) is secured to the edge carrier (31) to form a grid-shaped edge portion frame (30).

[0043] A step corresponding to the height of a well ceiling is formed between the central frame (20) and the edge frame (30) configured as above. As shown in FIG. 4, the central frame (20) and the edge frame (30) are connected and joined by fastening the bracket (20) of the present invention to the outer edge portion of the central frame (20) and the inner edge portion of the edge frame (30).

[0044] With the upper surface of the upper fastening part (110) of the bracket (100) in close contact with the lower surface of the central part M-bar (23), the bracket (100) and the central part frame (20) are fastened by fastening a piece.

[0045] Then, the first locking projection (131) or the second locking projection (132) formed on the lower fastening part (130) of the bracket (100) is connected to be inserted between the locking holes (34) of the edge part embar (33), thereby connecting the bracket (100) and the edge part frame (30).

[0046] As illustrated in FIG. 1, a first locking projection (131) is formed on the edge of the lower fastening part (130) corresponding to the vertical part (120) direction of the bracket (100), and a second locking projection (132) is formed on the edge of the lower fastening part (130) corresponding to the direction perpendicular to it—on both sides of the lower fastening part (130).

[0047] Accordingly, when attaching the bracket (100) along the outer edge of the central frame (20) as shown in FIGS. 4 and 5, the first locking projection (131) and the second locking projection (132) can be selected and attached to the locking hole (34) of the edge portion embar (33) in mutually orthogonal directions.

[0048] Since the bracket (100) of the present invention is manufactured by press-forming a thin metal plate, forming the first locking projection (131) and the second locking projection (132) on the edge portion of the lower fastening part (130) as shown in FIG. 1 is suitable for mass production of the bracket (100) and reduction of production costs.

[0049] As shown in FIGS. 4 and 5, the upper fastening part (110) of the bracket (100) is fastened to the central part M-bar (23) of the central part frame (20), and the lower fastening part (130) is combined to the edge part M-bar (33) of the edge part frame (30). Then, as shown in FIG. 6, a stepped finishing panel (41) is fastened to the front of the vertical part (120) of the bracket (100) using fastening means such as a screw.

[0050] If the stepped finishing panel (41) is long or heavy, one worker must lift the stepped finishing panel (41) to position it, and another worker must fasten the stepped finishing panel (41) to the bracket (100) with a screw.

[0051] Support pieces (133) are configured on both lower sides of the vertical section (120) as shown in Fig. 1 so that one worker can perform the fastening work even if the stepped section finishing panel (41) is long or heavy.

[0052] When manufacturing the bracket (100), the lower portions on both sides of the vertical part (120) are partially cut to form an incision (121), as shown in the enlarged view of FIG. 1.

[0053] The support member (133) configured as described above is generally formed in the same plane as the vertical part (120) as the lower fastening part (130) is extended, but when fastening a long or heavy stepped finishing panel (41), the support member (133) is unfolded and protruded forward of the vertical part (120) as shown in FIG. 9.

[0054] And as shown in Fig. 9, the lower part of the stepped finishing panel (41) can be placed on the unfolded support piece (133) and temporarily fixed, so even if the stepped finishing panel (41) is long or heavy, one worker can fasten it to the bracket (100).

[0055] In an embodiment of the present invention, the support piece (133) is described as extending from the lower fastening part (130), but the support piece (133) may also be configured to extend from the vertical part (120).

[0056] After attaching the step section finishing panel (41) to the step section of the well ceiling, the central section finishing panel (42) is attached to the well ceiling - central section frame (20) - as shown in Fig. 7.

[0057] The above central finishing panel (42) is fastened to the central embar (23) of the central frame (20) using fastening means such as a screw.

[0058] Then, as shown in Fig. 8, an edge finishing panel (43) is attached to the edge of the well ceiling - the edge frame (30). The edge finishing panel (43) is attached to the edge bar (33) of the edge frame (30) using fastening means such as a screw.

[0059] As described above, the bracket (100) of the present invention can easily and securely connect the central frame (20) and the edge frame (30) that have a height difference when constructing a coffered ceiling with lightweight steel, and can also connect one embar and another embar perpendicular to it with one type of bracket (100).

[0060] FIG. 10 is a perspective view illustrating a bracket (100) according to a second embodiment of the present invention.

[0061] Since the height difference of the well ceiling may vary from one construction site to another, the first embodiment of the present invention described above has the inconvenience of having to manufacture the vertical part (120) by adjusting its height to match the height difference of the well ceiling at the construction site.

[0062] The second embodiment of the present invention is a bracket (100) configured to allow construction by adjusting the height of the vertical part (120) of the bracket (100) to match the step difference of the well ceiling at each construction site.

[0063] As shown in FIG. 10, the bracket (100) according to the second embodiment of the present invention has the vertical part (120) and the upper fastening part (110) located on the same plane before the upper fastening part (110) is bent at the vertical part (120).

[0064] And a plurality of slots (140) are drilled between the vertical section (120) and the upper fastening section (110). The slots (140) are formed at a position and size corresponding to the fixing protrusions of the carrier used as the central carrier (21) or the edge carrier (31).

[0065] The slots (140) are formed at predetermined intervals in the vertical and horizontal directions so as to form a predetermined height between the vertical part (120) and the upper fastening part (110).

[0066] And the slot (140) is formed to a size such that a locking projection (22, 32) of the central carrier (21) or the edge carrier (31) can be inserted, and the locking projection (22, 32) of the carrier can slide laterally while inserted.

[0067] When using the second embodiment of the present invention illustrated in FIG. 10, the upper fastening part (110) must be bent to form a vertical part (120) so as to correspond to the step difference between the central frame (20) and the edge frame (30) at the construction site.

[0068] At this time, as shown in FIG. 11, the locking projection of the carrier used as the central carrier (21) or the edge carrier (31)—the carrier after the ceiling frame has been installed or before installation—is inserted into the slot (140), and when the carrier is slid laterally, the hooks on both sides of the locking projection catch on the edge of the slot (140).

[0069] At this time, as shown in FIG. 13, the height of one vertical side of the slot (140) is formed in a shape that is higher than the height of the other vertical side, i.e., a trapezoidal shape, so that the locking projection of the carrier is easily inserted into the slot (140), and when the carrier is slid while the locking projection is inserted into the slot (140), the locking projection is tightly fitted and engaged with the shorter vertical side, so that the carrier can be easily and accurately bent when bending.

[0070] In this state, when the carrier is grasped and bent, the upper fastening part (110) above it is bent along the carrier, centering on the slot (140) into which the carrier’s locking projection is inserted, and the upper fastening part (110) is formed as shown in FIG. 12.

[0071] Since the bracket (100) is formed from a thin metal plate, if the long bracket (100) is bent by hand, it does not bend evenly. However, as shown in FIGS. 11 and 12, if it is bent using a carrier, the carrier acts as a guide so that the upper fastening part (110) is bent neatly and the upper fastening part (110) is formed.

[0072] And the slots (140) are formed at predetermined intervals in the vertical direction, and it is preferable that the slots (140) located in a straight line horizontally and the slots (140) located in a straight line horizontally above or below them be formed in a zigzag shape that are staggered from each other.

[0073] If slots (140) located in a straight line horizontally and slots (140) located in a straight line horizontally above or below them are formed at the same position, when the upper fastening part (110) is bent using a carrier, it may be bent at an inaccurate position along the slots (140) located above or below it.

[0074] However, as shown in FIG. 11, if slots (140) located in a straight line horizontally and slots (140) located in a straight line horizontally above or below them are formed in a zigzag shape that is staggered from each other, they are accurately bent along a carrier that acts as a guide to form an upper fastening part (110).

[0075] The second embodiment of the present invention configured as described above can be constructed by adjusting the height of the vertical part (120) of the bracket (100) to match the height difference of the well ceiling at each construction site.

[0076] The technical concept of the present invention has been examined through the embodiments described above.

[0077] It is obvious that a person skilled in the art to which the present invention pertains can variously modify or change the embodiments described above from the description of the present invention.

[0078] Furthermore, it is obvious that a person skilled in the art to which the present invention pertains may make various modifications including the technical concept according to the present invention from the description of the present invention, even if not explicitly stated or described, and such modifications still fall within the scope of the rights of the present invention.

[0079] The above embodiments described with reference to the attached drawings are described for the purpose of explaining the present invention, and the scope of the present invention is not limited to these embodiments. Explanation of the symbols

[0081] 10 : Slab 11 : Hanger 20 : Central frame 21 : Central Carrier 22 : Stopping projection 23 : Central Embar 24 : Hinder 30 : Edge frame 31: Edge carrier 32 : Stopping projection 33 : Edge embossing 34 : Hinder 41 : Step section finishing panel 42 : Central finishing panel 43 : Edge finishing panel 100 : Bracket 110 : Upper fastening part 120 : Vertical section 121 : Incision 130 : Lower fastening part 131 : First stopper 132 : Second stopper 133 : Jiji-pyeon 140 : Slot

Claims

Claim 1 A bracket (100) for constructing a lightweight steel frame type well-shaped ceiling comprises: a vertical portion (120) in the shape of a plate that is erected vertically; an upper fastening portion (110) that is horizontally bent to one side from the upper end of the vertical portion (120) and fastened to a central frame (20); and a lower fastening portion (130) that is horizontally bent in the opposite direction to the upper fastening portion (110) from the lower end of the vertical portion (120) and fastened to an edge frame (30) of the well-shaped ceiling. The lower fastening portion (130) is provided with a first locking projection (131) formed on an edge facing the vertical portion (120) to be coupled parallel to the longitudinal direction of the M-bar (33) constituting the edge frame (30), and a second locking projection (132) formed on both edges of the lower fastening portion (130) to be coupled perpendicular to the longitudinal direction of the M-bar (33), so as to allow the bracket (100) to be coupled without changing direction. A bracket for constructing a lightweight steel frame type well-shaped ceiling, characterized by being selectively coupled to M-bars (33) in different directions, and having a support piece (133) formed on both lower sides of the vertical section (120) so as to be in the same plane as the vertical section (120) through a cut section (121) in which a part of the vertical section (120) is cut, and being bendable forward, and supporting the lower end of a stepped finishing panel (41) attached to the vertical section (120) in a bent forward state. Claim 2 A bracket (100) for constructing a lightweight steel frame type well-shaped ceiling comprises: a vertical portion (120) in the shape of a plate that is erected vertically; a lower fastening portion (130) that is horizontally bent to one side from the bottom of the vertical portion (120) and fastened to an edge frame (30) of the well-shaped ceiling; and an upper fastening portion (110) that extends upward from the vertical portion (120), is bent to match the step height of the construction site, and is fastened to a central frame (20); wherein a plurality of slots (140) are formed at a predetermined interval in the vertical and horizontal directions, so that a locking projection of an unused carrier is inserted into the boundary area between the vertical portion (120) and the upper fastening portion (110) to serve as a guide for the unused carrier to bend the upper fastening portion (110). Claim 3 A bracket for constructing a lightweight steel frame type well-shaped ceiling, characterized in that, in paragraph 2, a support piece (133) is formed on both lower sides of the vertical section (120) to form a plane with the vertical section (120) through a cut section (121) in which a part of the vertical section (120) is cut, and is capable of being bent forward, and supports the lower end of a stepped finishing panel (41) attached to the vertical section (120) in a bent forward state. Claim 4 A bracket for constructing a lightweight steel frame type well-shaped ceiling, wherein, in paragraph 2, the plurality of slots (140) are arranged in a zigzag shape such that a row of slots (140) arranged in a horizontal direction is staggered relative to another row of adjacent slots (140) above and below. Claim 5 A bracket for constructing a lightweight steel frame type well ceiling, characterized in that, in paragraph 2, the unused carrier is of the same size as the central carrier (21) or the edge carrier (31). Claim 6 A bracket for constructing a lightweight steel frame type well-shaped ceiling, characterized in that, in paragraph 2, the slot (140) is formed in a trapezoidal shape such that the height of one vertical side in the insertion direction is higher than the height of the other vertical side so that the locking projection of the carrier can be easily inserted.

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