KR102146338B1 - Improved Table Frame Assembly - Google Patents

Abstract

The present invention relates to a frame assembly using a post coupled to a lower portion of an upper plate and a crossbar, and more specifically, a crossbar in a horizontal direction is interconnected and fixed in a rectangular shape on a plane with respect to the posts vertically arranged in all directions. A separate frame joint is coupled to the front end, and the end of the crossbar is coupled using the frame joint, but an extension block is inserted into the lower inner side of the frame joint to be coupled with the vertical tightening bolt, and the frame joint As the end of the bar coupling part protruding from the side of the bar joint is formed to be coupled to the horizontal tightening bolt, the post and the crossbar for the frame joint are simply rotated by simply rotating the tightening bolt made of a wrench bolt. The frame joint and the crossbar coupling part are not exposed to the outside at all by the frame joint and the crossbar coupling part are not exposed to the outside by allowing the frame joint to be connected to the post after coupling the crossbar to the frame joint. It is very simple and beautiful, and because each post and crossbar are connected through the expansion of the frame joint and the bar joint, the mutual fastening structure is very simple and the convenience of use is excellent. This is very excellent.

Description

Table frame assembly with non-exposed fastening structure {Improved Table Frame Assembly}

The present invention relates to a frame assembly using a post and a crossbar coupled to the lower part of the upper plate. More specifically, the post and the crossbar can be quickly and efficiently interconnected and fixed using a separate frame joint. It relates to a table frame assembly in which the structural stability of the table is greatly improved by allowing the front end of the post, the upper surface of the crossbar, and the upper surface of the frame joint to simultaneously support the lower surface of the upper plate due to the non-exposed structure of the means.

In general, a table is provided with a flat top plate in a rectangular shape on a plane, and the top plate is fixed by a lower frame structure made of various shapes and materials.In the past, the lower frame structure was permanently placed under the upper plate. The manufacturing method of fixing was the main one, but in recent years, an assembly type table having a structure in which a lower frame structure is individually manufactured and then a top plate in various design forms is assembled with respect to the lower frame structure is mainly manufactured and used.

In addition, in recent years, a table with a simple yet excellent interior effect along with manufacturing convenience and economy as well as light weight is mainly used. Such a desk is a state in which "C" or square-shaped posts are spaced apart on both sides. In this trend, the upper portions of these posts are connected and fixed to each other by a crossbar, and then the upper plate is coupled and fixed using the post and the crossbar.

Such an assembly table can provide convenience to assembly workers by allowing the table top plate to be conveniently, quickly and reliably coupled to the frame without separate fixing parts, as in the Registered Utility Model No. 20-0469577, and the table top plate A table top fixing member has been devised and registered to provide an atmosphere that allows users to use a new table by allowing them to be conveniently and quickly turned over and combined even when the upper surface of the table is used as the upper surface. There is a bar.

In addition, as in Patent No. 10-1417479, the vertical pillar frame is extruded out of aluminum and the frame fixture is fixed thereon, and the four frame fixtures are fixed to the upper part of the vertical pillar frame and formed in a "L" shape. Since the desk can be moved to the site while the desk is separated, the volume is reduced so that it is easy to transport, and the assembly and disassembly of the frames are simple, so that the assembly and disassembly are easy, so it is easy to move and store, and assembly by welding is required. As the assembly time is shortened, it is possible to reduce manpower consumption and cost consumption, and since the upper plate fixing frame and the support column frame are simultaneously stably fixed by the frame fixing tool, they are fixed without shaking so that it can be used stably for a long time. A prefabricated desk structure has been devised and registered.

In addition, as in Registration Patent No. 10-1503689, the support frame and the leg are fastened to each other to effectively distribute the load transmitted to the leg to secure the reliability of the product, and to facilitate the separation/assembly of the support frame and the leg for transportation and installation. The assembly structure for easy work has been devised and registered.

In addition, a plurality of vertical frames installed vertically on the ground at regular intervals as in Patent No. 10-1865581 and having a plurality of holes formed on an outer surface thereof; At least one horizontal frame installed above the vertical frames and horizontally installed to connect the vertical frames; A plurality of brackets having holes perforated outwardly to connect the vertical frame and the horizontal frame; And it is formed in a straight structure and is horizontally disposed on one side of an upper portion of any one of the plurality of vertical frames, a plurality of holes are formed on the outer surface, and a horizontal frame is provided to connect and expand a plurality of desk frames. At least one expansion frame for installation; including a prefabricated desk frame has been devised and registered.

However, in the case of the prefabricated table as described above, when the fastening fixing force between the upper plate and the post and the crossbar is weakened or lost, the structural stability of the upper plate or the post shakes forward, backward, and left, right, and so on.

In addition, in the process of mutually fastening the post and the crossbar, fastening means of various structures are separately provided, so that the post and the crossbar must be firmly coupled through these fastening means, as well as the above fastening means are exposed to the outside as it is, thereby damaging the aesthetics. In addition, since the crossbars arranged at right angles to a single post are coupled by using separate fastening means, the mutual fastening portions produce a very complex fastening state, resulting in a problem that the work efficiency is greatly reduced.

In addition, in the case of loosening or weakening or loss of the fixing force in the mutually fastening parts as described above, the fastening parts and fastening points of the top plate, posts and crossbars shake each other, and the strong load or load at the local part is applied. Due to such loads or loads, damage or deformation of the fastening part or cutting or bending of the fastening part occurs. Therefore, it has a problem that reduces learning and work efficiency.

Korea Registered Utility Model 20-0469577 (Registered on October 15, 2013) Korean Patent Registration 10-1417479 (2014.07.02.registered) Korean Patent Registration 10-1503689 (registered on March 12, 2015) Korean Patent Registration 10-1865581 (Registered on June 1, 2018)

The present invention improves the above-described problem, and connects and fixes the crossbars in the lateral direction in a rectangular shape on a plane with respect to the posts vertically arranged in all directions, but a separate frame joint is formed at the front end of each post. And, the end of the crossbar is coupled using the frame joint, but an extension block is inserted into the lower inner side of the frame joint to be coupled with the vertical tightening bolt, and the end of the bar coupling portion protruding toward the side of the frame joint Inwardly, as the expansion wedge is formed to be coupled to the horizontal tightening bolt,

As the lower extension of the frame joint and the extension of the end of the bar coupling part occur through the expansion block and the expansion wedge that are moved by the rotation of each tightening bolt, the frame joint and the bar coupling part are securely pressed and fixed with the post and the crossbar. And it is an object of the present invention to provide a table frame assembly having a non-exposed fastening structure characterized in that each of the mutual fastening means and the fastening portion are not exposed to the outside at all because it is recessed into the inside of the crossbar.

In the present invention for achieving the above object, a separate frame joint is formed to be coupled to the inside of the vertical post end, and the crossbar ends in the transverse direction are respectively coupled to the bar joints protruding from the frame joint to both sides. But,

A divided expansion part is formed to protrude downward from the lower side of the frame joint, and a separate expansion block is inserted inside the divided expansion part to vertically penetrate the frame joint and expand by rotation of a vertical tightening bolt screwed to the expansion block. When the block is raised, the divided expansion part is extended outward toward the inner surface of the post inserted to the outside of the frame joint to be mutually coupled and fixed,

A divided protrusion is formed at the outer end of the bar coupling part, and a separate expansion wedge is inserted between the divided protrusions to penetrate the frame joint and the bar coupling part in the transverse direction to rotate the horizontal tightening bolt screwed to the expansion wedge By the movement of the expansion wedge by the divided protrusions are configured to be mutually coupled and fixed while extending outward toward the inner surface of the crossbar inserted outside the bar coupling portion.

In the present invention, by simply rotating a tightening bolt made of a wrench bolt, a strong and stable coupling and fixing of the post and the crossbar to the frame joint is achieved, as well as the coupling to the post after the crossbar is coupled to the frame joint. Because the frame joint and the crossbar coupling part are not exposed to the outside by the front end of the post bar, the appearance is very simple and beautiful, and each post and the crossbar are coupled through the expansion of the frame joint and the bar coupling part. Therefore, the mutual fastening structure is very simple, and at the same time, the convenience of use is excellent, and the structural stability of the table is very excellent due to the mutually strong pressure-contact structure.

1 is an overall perspective view of a table frame assembly according to the present invention
Figure 2 is an exploded perspective view of the main parts of the table frame assembly according to the present invention
3 is an overall perspective view of the joint of the table frame assembly according to the present invention
Figure 4 is an overall perspective view of the joint of the table frame assembly according to the present invention in another direction
5 is an overall perspective view of the joint of the table frame assembly according to the present invention in a bottom direction
6 is an exploded perspective view of the entire joint of the table frame assembly according to the present invention
Figure 7 is an explanatory view of the joint and crossbar coupling of the table frame assembly according to the present invention
8 is an overall cross-sectional view of the coupling portion according to FIG. 7
9 is an enlarged cross-sectional view of the coupling portion according to FIG. 7
10 is an explanatory view of coupling in another direction of the crossbar to the joint of the table frame assembly according to the present invention
11 is an explanatory view of joint and post coupling of the table frame assembly according to the present invention
12 is an overall cross-sectional view of the coupling portion according to FIG. 11
13 is an enlarged cross-sectional view of the coupling portion according to FIG. 11
14 is an explanatory view of a combination of a top plate for a table frame assembly according to the present invention
15 is an enlarged cross-sectional view of the upper plate coupling part for the table frame assembly according to the present invention
Figure 16 is another embodiment of the joint and crossbar coupling portion of the table frame assembly according to the present invention
Figure 17 is another embodiment of the joint and crossbar coupling portion of the table frame assembly according to the present invention
Figure 18 is another embodiment of the joint and post coupling portion of the table frame assembly according to the present invention

Additional objects, features, and advantages of the present invention may be more clearly understood from the following detailed description and accompanying drawings.

Prior to the detailed description of the present invention, the present invention can be made various modifications and various embodiments, and the examples described below and shown in the drawings are intended to limit the present invention to specific embodiments. It should be understood as including all changes, equivalents, and substitutes included in the spirit and scope of the present invention.

In addition, when a component is referred to as being "connected" or "connected" to another component, it may be directly connected or connected to the other component, but other components may exist in the middle. It should be understood that there is. On the other hand, when a component is referred to as being "directly connected" or "directly connected" to another component, it should be understood that there is no other component in the middle.

Subsequently, the terms used in the present specification are used only to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In the present specification, terms such as "comprise" or "have" are intended to designate the presence of features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, but one or more other features. It is to be understood that the presence or addition of elements or numbers, steps, actions, components, parts, or combinations thereof, does not preclude in advance.

In addition, terms such as "... unit", "... unit", and "... module" described in the specification mean a unit that processes at least one function or operation, which is hardware, software, or hardware and It can be implemented as a combination of software.

In addition, in the description with reference to the accompanying drawings, the same reference numerals are assigned to the same components regardless of the reference numerals, and redundant descriptions thereof will be omitted. In describing the present invention, when it is determined that a detailed description of related known technologies may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an overall perspective view of a table frame assembly according to the present invention, FIG. 2 is an exploded perspective view of main parts of the table frame assembly according to the present invention, and FIG. 3 is an overall perspective view of a joint of the table frame assembly according to the present invention, FIG. 4 Is an overall perspective view of the joint of the table frame assembly according to the present invention in another direction, Figure 5 is an overall perspective view of the bottom direction of the joint of the table frame assembly according to the present invention, Figure 6 is the joint of the table frame assembly according to the present invention It is an exploded perspective view of the whole.

As shown in the figure, the frame assembly according to the present invention includes posts 10 and 10 ′ in the shape of a square tube installed upright in all directions, and frame joints 100 respectively coupled to the front ends of the posts 10 and 10 ′. And, the bar coupling portions 200 (200 ′) of protrusions arranged in a plane perpendicular to the side of the frame joint 100, and the bar coupling portions 200, 200 of each frame joint 100 corresponding to each other. It is made by crossbars 20 and 20' in the shape of a square tube that are coupled in the transverse direction using'), and the crossbars 20 and 20' are all assembled and post 10 in all directions. It has a table frame structure of a rectangular frame body on a plane connecting (10').

Here, the posts 10 and 10 ′ are applicable to a triangular or polygonal square tube, and may be replaced with a circular tube or rod body, and a triangular or pentagonal or hexagonal arrangement is possible instead of a four-way arrangement, The crossbars 20 and 20' may also be replaced with polygonal square pipes such as triangular or circular square pipes or rods.

In addition, the frame joint 100 has a rectangular shape in a plane according to the inner shape of the posts 10 and 10 ′ made of a rectangular tube, and the lower side of the frame joint 100 is divided into four directions ( 101) (101 ′) is formed to protrude downward, and a separate expansion block 110 is inserted in the interior between the divided expansion units 101 and 101 ′.

Subsequently, the vertical fastening bolt 120 inserted vertically from the upper side of the frame joint 100 is screwed to the expansion block 110, and has a rectangular shape by rotation of the vertical fastening bolt 120. The expanded block 110 can be raised and lowered in the vertical direction, and when the expansion block 110 in the divided expansion unit 101 and 101 ′ rises, the divided expansion unit 101 and 101 ′ ) And the outward expansion of the divided and expanded parts 101 and 101 ′, and the outward expansion of the divided and expanded parts 101 and 101 ′ to the outside of the frame joint 100 While strongly pressing the inner surfaces of the combined posts 10 and 10 ′ in an outward direction, a strong connection and fixation are achieved with each other.

That is, the inner surface of the divided and extended portions 101 and 101 ′ protruding toward the lower side of the frame joint 100 is composed of a joint inclined surface 102 that gradually narrows toward the upper side, and the expansion block 110 The outer surface is formed of a block inclined surface 111 having a shape corresponding to the joint inclined surface 102 and gradually narrowing toward the upper side.

Therefore, as the expansion block 110 inserted into the divided expansion unit 101, 101 ′ is raised to a non-rotating state according to the rotation of the vertical tightening bolt 120, the block inclined surface with respect to the joint inclined surface 102 Interference of (111) occurs, and when the expansion block 110 continues to rise, the division and expansion units 101 and 101 ′ are forcibly expanded outward by the expansion block 110, Due to the outward expansion of the divided and extended portions 101 and 101 ′, a strong tight fixing force is generated on the inner surfaces of the posts 10 and 10 ′.

In addition, divided protrusions 201 and 201 ′ are formed at the outer ends of the bar coupling portions 200 and 200 ′ of the frame joint 100 to protrude upward and downward, and the divided protrusions 201 and 201 ′ are formed. ), a separate expansion wedge 210 is inserted through the spaced between, and the expansion wedge 210 passes through the bar coupling portions 200 and 200 ′ in the transverse direction from the side of the frame joint 100 A separate horizontal tightening bolt 220 is screwed.

Therefore, when the horizontal tightening bolt 220 is rotated, the expansion wedge 210 flows in the transverse direction between the divided protrusions 201 and 201', and the expansion wedge 210 is the frame joint 100 When moving in the direction, interference resistance between the expansion wedge 210 and the divided protrusions 201 and 201 ′ occurs, and due to this mutual interference, the divided protrusions 201 and 201 ′ are moved up and down. It expands in the direction, and the inner surface of the crossbars 20 and 20 ′ inserted to the outside of the bar coupling parts 200 and 200 ′ due to the vertical expansion of the divided protrusions 201 and 201 ′ As the divided protrusions 201 and 201 ′ are expanded outward with a strong force, a strong coupling and fixation between them can be made.

That is, the divided protrusions 201 and 201 ′ formed on the bar coupling portions 200 and 200 ′ of the frame joint 100 are spaced upward and downward, and these divided protrusions 201 and 201 ′ The expansion wedge 210 is inserted between the divided protrusions 201 and 201 ′, and the mutually opposite inner surfaces of the divided protrusions 201 and 201 ′ are formed of a slip inclined surface 202 in a form that gradually decreases toward the frame joint 100. , The upper and lower surfaces of the expansion wedge 210 are also made of a wedge inclined surface 211 in a shape gradually reduced toward the frame joint 100.

Therefore, as the expansion wedge 210 inserted between the divided protrusions 201 and 201' is moved in the direction of the frame joint 100 in a non-rotating state by the rotation of the horizontal tightening bolt 220, the slip inclined surface 202 ) Due to the interference of the wedge inclined surface 211, the divided protrusions 201 and 201 ′ expand in the up and down directions, and the bar coupling part due to the outward expansion force of the divided protrusions 201 and 201 ′ The inner surfaces of the crossbars 20 and 20 ′ coupled to the 200 and 200 ′ are strongly pressed up and down, while a strong and robust coupling and fixation between them can be made.

In addition, an upper plate fixing part 300 protruding in the transverse direction is formed between the bar coupling parts 200 and 200 ′ of the frame joint 100, and a fastening hole having a vertical penetration in the upper plate fixing part 300 ( The upper surface of the upper plate fixing part 300 is tightly fixed to the lower surface of the upper plate 30 by means of a fastening bolt (not shown in the drawing) inserted from the lower side of the fastening hole 301 by forming 301 The frame joint 100 and the posts 10, 10' and the crossbars 20, 20' coupled to the frame joint 100 are strongly in close contact with the bottom of the upper plate 30.

Subsequently, a recessed groove portion 103 is formed on the upper portion of the frame joint 100 so that a vertical tightening bolt 120 is inserted through the bottom portion of the recessed groove portion 103 to be screwed to the expansion block 110. And, through the inner surface of the recessed groove 103, the horizontal tightening bolt 220 is inserted through the bar coupling portions 200, 200', and is configured to be screwed to the expansion wedge 210.

Therefore, the vertical tightening bolts 120 and the heads 120a and 220a of the horizontal tightening bolts 220 are concealed in the recessed groove 103, and in the case of the vertical tightening bolts 120, the frame joint 100 ) Is inserted downward through the upper portion of the head portion (120a) is located on the bottom surface of the recessed groove (103).

In addition, in the case of the horizontal tightening bolt 220, it is inserted through the bolt insertion holes 104 and 104 ′ penetrating the side of the frame joint 100, and the bolt insertion holes 104 and 104 ′ are horizontal The head 220a of the tightening bolt 220 has an inner diameter such that the head 220a passes through, and the head 220a of the horizontal tightening bolt 220 inserted through the bolt insertion holes 104 and 104' It is to be screwed to the expansion wedge 210 while maintaining a state in close contact with the inner surface of the recessed groove (103).

Therefore, the hexagonal wrench groove formed on the head of the vertical tightening bolt 120 exposed to the upper side of the recessed groove 103 can be simply rotated using a wrench tool so that the expansion block 110 can be raised and lowered, After inserting a wrench tool into the bolt insertion holes 104 and 104 ′, the hexagonal wrench groove formed in the head 220a of the horizontal tightening bolt 220 on the inner side of the recessed groove 103 is engaged with the horizontal By simply rotating the tightening bolt 220, the expansion wedge 210 can be moved in the transverse direction.

Accordingly, the vertical tightening bolts 120 and horizontal tightening bolts 220 for coupling and fixing the post 10, 10' and the crossbars 20 and 20' are all outwardly of the frame joint 100. It is not protruding or exposed at all, and the frame joint 100 and the bar coupling part 200 and 200 ′ are also inserted into the front ends of the posts 10 and 10 ′ and the ends of the cross bars 20 and 20 ′. Since they are combined in a form, they are not protruded or exposed to the outside at all, and the mutual coupling and fixing means for each component are concealed, so that a concise and beautiful appearance can be continuously produced.

In particular, at one side of the front end of the post 10 and 10 ′ as described above, a cutout 11 is formed so that the lower end of the bar coupling portion 200 and 200 ′ of the frame joint 100 is placed. In the frame joint 100, the bar coupling portions 200 and 200 ′ protruding from the side of the frame joint 100 in the process of being inserted into the front end of the post 10 and 10 ′ '), so the frame joint 100 as a whole is formed by forming a cutout 11 corresponding to the width and height of the bar coupling portions 200 and 200' to prevent this. 10) It is designed to be inserted into the top of (10').

In addition, in the process of inserting the frame joint 100 into the post 10, 10', the lower end of the bar coupling portion 200, 200' is caught under the cutout 11, so the frame joint ( 100) can be prevented from being excessively inserted into the tubular post 10, 10', and the frame joint 100 is inserted on the top of the post 10, 10' As the upper surface of the post 10 and 10 ′ and the upper surface of the frame joint 100 are configured to form the same plane with each other, the lower surface of the upper plate 30 is the upper and frame joints of the posts 10 and 10 ′. It is configured to support the load acting on the upper plate 30 more stably as well as a solid fixing force due to mutual close contact while the upper surface of the 100 is in close contact at the same time.

Then, the bar coupling portion 200 (200') formed on the side of the frame joint 100, the upper surface of the bar coupling portion 200, 200' is the cross-sectional thickness of the crossbars 20, 20' By having the same height as and forming downward from the upper surface of the frame joint 100, when the crossbars 20 and 20' are coupled to the bar coupling portions 200, 200', the crossbars 20, 20 The upper surface of') and the upper surface of the frame joint 100 form the same plane, and accordingly, the bottom surface of the upper plate 30 is on the upper surface of the crossbars 20 and 20' and the upper surface of the frame joint 100. It can be fixed in close contact.

Therefore, on the bottom surface of the upper plate 30, the upper surface of the post 10, 10', the entire upper surface of the crossbar 20, 20', the upper surface of the frame joint 100, and the upper surface of the upper plate fixing part 300 are Since all are kept in close contact with each other at the same time, the adhesion and fixing force to the upper plate 30 to be bolted through the fastening hole 301 of the upper plate fixing part 300 is further improved, as well as acting on the upper plate 30. The structural rigidity can be greatly increased by supporting and dispersing various types of loads more stably.

Accordingly, in order to connect and fix the frame assembly of the present invention, one end of the crossbars 20 and 20 ′ is attached to the bar coupling portion 200 and 200 ′ of the frame joint 100 as shown in FIGS. 7 and 8. After coupling, the wrench tool is inserted from one side of the frame joint 100 into the bolt insertion holes 104 and 104 ′ to rotate the head 220a of the horizontal tightening bolt 220 in the recessed groove 103. The expansion wedge 210 can be rotated in a pulling manner.

Accordingly, while the expansion wedge 210 is pulled in the direction of the frame joint 100, the wedge inclined surface 211 of the expansion wedge 210 and the divided protrusions 201 and 201 ′ of the bar coupling portions 200 and 200 ′ At the same time as the slip inclined surface 202 causes interference, as shown in FIG. 9, the divided protrusions 201 and 201 ′ receive an external force extending upward and downward, respectively, and the divided protrusions 201, 201 ′ The crossbars 20 and 20 ′ in the state coupled to the bar coupling portions 200 and 200 ′ due to the expansion force of the divided protrusions 201 and 201 ′ produce a strong tight and fixed state with each other,

Subsequently, after coupling the crossbars 20 and 20' to the bar coupling portions 200 and 200' on one side of the bar coupling portions 200 and 200' of the frame joint 100, as shown in FIG. When the crossbars 20 and 20' are connected to be disposed at right angles to the other bar coupling portions 200 and 200', and assembled so that the combination and fixation in the shape of a rectangular frame body on a plane using the frame joints 100 in all directions is achieved. It becomes.

In this state, after inserting the lower end of the frame joint 100 into the front end of the post 10, 10' as shown in FIGS. 11 and 12, the recessed groove 103 of the frame joint 100 is also ) When the vertical tightening bolt 120 is rotated after connecting the wrench tool to the head 120a of the vertical tightening bolt 120, the expansion block 110 is pulled upward and at the same time the block slope of the expansion block 110 (111) and the joint inclined surface 102 of the division and expansion unit 101, 101' causes mutual interference.

Therefore, due to the mutual interference as described above, the division and expansion units 101 and 101 ′ expand outwardly in all directions as shown in FIG. 13, and due to this expansion force, the post 10 and 10 ′ and the frame joint (100) creates a bonded state by strong mutual adhesion.

Accordingly, when all of the posts 10 and 10 ′ are assembled and fixed with respect to each frame joint 100, the frame assembly of the table is completed as shown in FIG. 14, and a separate upper plate 30 is provided. 15. When the fastening bolts are inserted into the fastening holes 301 from the lower side of the top plate fixing part 300 of each frame joint 100 while being placed on the upper side of the frame assembly, as shown in FIG. As shown in the figure, a solid tight fixation is made to the upper plate 30.

At this time, at the bottom of the upper plate 30 as described above, the front ends of the posts 10 and 10 ′ and the upper surfaces of the frame joint 100 and the upper surfaces of the crossbars 20 and 20 ′ and the upper surface of the upper plate fixing part 300 Since the whole is in close contact with each other at the same time, the load acting on the top plate 30 is the post 10, 10', the frame joint 100, the crossbars 20, 20', and the top plate fixing part 300. As well as being supported through, as well as creating the effect of distributing the load through them, it is possible to maintain a more stable installation fixing force, as well as avoid the concentrated load of each coupling part, and ultimately obtain an effect of extending the service life.

Subsequently, in the present invention, as shown in FIG. 16, the side of the frame joint 100 in the direction in which the bar coupling portions 200 and 200 ′ are formed has fitting grooves located on both sides of the bar coupling portions 200 and 200 ′. Forming 105, and protruding a coupling protrusion 21 to be inserted into the fitting groove 105 at the end of the crossbar 20, 20' coupled to the bar coupling portion 200, 200' Thus, it may be configured to increase the coupling fixing force of the crossbars 20 and 20 ′ by the coupling protrusion 21 inserted into the fitting groove 105.

Therefore, in the process of coupling the crossbars 20 and 20' with the bar coupling portions 200 and 200', the coupling protrusions 21 are inserted into the fitting grooves 105, and the crossbars 20 and 20 It is possible to suppress unnecessary flow of'), and by rotating the horizontal tightening bolt 220 in the temporary coupling state as described above, the movement of the expansion wedge 210 and the expansion of the divided protrusions 201 and 201' occur. Thus, a strong and solid fixed state can be achieved.

In addition, as shown in FIG. 17, a downwardly protruding locking jaw 203 is formed on the bottom of the bar coupling portions 200 and 200 ′ of the frame joint 100, and a crossbar corresponding to the locking jaw 203 (20) A through locking hole 22 is formed in the lower portion of the (20'), and the crossbar for the bar coupling portions 200 and 200' is formed by the locking jaws 203 inserted into the locking holes 22. (20) It may be configured to increase the coupling fixing force of (20').

That is, the bar coupling portions 200 and 200 ′ are divided protrusions 10 compared to the inner width of the cross bars 20 and 20 ′ in the upper and lower directions for easy coupling with the cross bars 20 and 20 ′. Since the height of the upper and lower directions of (10') will be made small, the bottom surface of the bar coupling portions 200 and 200' or the bottom of the ends of the divided protrusions 210 and 210' due to the mutual step The locking jaw 203 will not interfere with the coupling process of the crossbars 20 and 20'.

Therefore, in a state in which the ends of the crossbars 20 and 20' are completely tightly fixed to the bar coupling portions 200, 200', the divided protrusions 201 and 201' are moved outward by moving the expansion wedge 210 inside. When extended, the locking jaws 203 will be inserted into the locking holes 22 of the crossbars 20 and 20 ′, so that the locking force between the locking jaws 203 and the locking holes 22 In addition to this increase, it is also possible to prevent the crossbars 20 and 20' and the bar coupling portions 200 and 200' from being separated from each other by an impact or unnecessary external force.

Subsequently, in the present invention, as shown in FIG. 18, a locking protrusion 106 is formed at a side end of the frame joint 100, and posts 10 and 10 ′ corresponding to the locking protrusions 106 are formed. A locking groove 12 is formed at the front end of the frame joint 100 so that the coupling fixing force of the frame joint 100 to the posts 10 and 10 ′ is further increased by the locking projection 106 inserted into the locking groove 12. It can also be configured.

Accordingly, in the table frame assembly of the present invention, the four posts 10 and 10 ′ for supporting the top plate and the crossbars 20 and 20 ′ connecting the posts 10 and 10 ′ are very mutually coupled. It is simple and quick, and at the same time, it is possible to maintain a strong coupling force, and since the mutual coupling part and coupling means are not exposed to the outside at all, the appearance is simple and beautiful.

The configurations shown in the embodiments and drawings as described above are only the most preferred embodiment of the present invention, and do not represent all the technical spirit of the present invention, so various equivalents and modifications that can replace them It should be understood that there may be examples.

10,10': post 11: cutout
12: Gage home
20,20': crossbar 21: coupling protrusion
22: locksmith
30: top plate
100: frame joint 101,101': division and expansion unit
102: joint slope 103: recessed groove
104,104': bolt insertion hole 105: fitting groove
106: locking jaw
110: expansion block 111: block slope
120: Vertical tightening bolt
200,200': bar coupling portion 201,201': split protrusion
202: slip slope 203: locking jaw
210: extended wedge 211: wedge slope
220: horizontal tightening bolt
300: upper plate fixing unit 301: conclusion work

Claims (10)

A separate frame joint 100 is coupled to the inside of the front end of the vertical post 10 and 10 ′, and the bar coupling portions 200 and 200 ′ protruding from the frame joint 100 to both sides have a transverse direction. The ends of the crossbars 20 and 20 ′ of the crossbars 20 and 20 ′ are respectively coupled to each other, but the divided expansion portions 101 and 101 ′ are formed to protrude downward from the lower side of the frame joint 100, and the divided expansion units 101 and 101 ′ ), a separate expansion block 110 is inserted into the frame joint 100 by vertically penetrating the frame joint 100 and rotating the vertical tightening bolt 120 screwed to the expansion block 110. ) By the rise of the divided and extended portions 101, 101 ′, they expand outward toward the inner surface of the post 10, 10 ′ coupled to the outside of the frame joint 100, and are mutually coupled and fixed, and the bar Divided protrusions 201 and 201 ′ are formed at the outer ends of the coupling parts 200 and 200 ′, and a separate expansion wedge 210 is inserted between the divided protrusions 201 and 201 ′. The movement of the expansion wedge 210 by rotation of the horizontal tightening bolt 220 screwed to the expansion wedge 210 by passing through the frame joint 100 and the bar coupling portion 200, 200 ′ in the transverse direction The divided protrusions 201 and 201 ′ extend outward toward the inner surfaces of the crossbars 20 and 20 ′ coupled to the outside of the bar coupling units 200 and 200 ′, and are mutually coupled and fixed. In the frame assembly,
At one side of the front end of the post 10, 10', a cutout 11 is formed so that the lower end of the bar coupling portion 200, 200' of the frame joint 100 is placed, and the frame joint 100 The top of the posts 10 and 10 ′ and the frame joint 100 in the state where the bar coupling portions 200 and 200 ′ are placed on the cutout 11 of the posts 10 and 10 ′ coupled to the outside ) Are configured to form the same plane with each other, and on the side of the frame joint 100 in the direction in which the bar coupling portions 200, 200' are formed, on both sides of the bar coupling portions 200, 200' A coupling protrusion 21 formed with a fitting groove 105 to be positioned and inserted into the fitting groove 105 at the ends of the crossbars 20 and 20 ′ coupled to the bar coupling portions 200 and 200 ′. A table frame assembly having a non-exposed fastening structure, characterized in that the coupling fixing force of the crossbars 20 and 20' is increased by the coupling protrusion 21 inserted into the fitting groove 105 by protruding) . delete delete delete delete delete delete delete delete delete

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