KR20210068755A - Frame connection structure - Google Patents

Abstract

The present invention relates to a frame connection structure and, more specifically, to a frame connection structure which has a compact and simple structure, is quickly and conveniently assembled, and can adjust a fastening position to effectively perform assembly work. According to the present invention, the frame connection structure has a frame connector connecting a longitudinal member and a lateral member to each other. The frame connector includes a support unit and a connection unit extended from the support unit and having a binding hole. The frame connection structure comprises: a support hole drilled in the longitudinal member or the lateral member to insert the support unit thereinto; an insertion hole drilled in the longitudinal member or the lateral member to communicate with the binding hole; and a fastening member inserted through the insertion hole to be connected to the binding hole.

Description

Frame connection structure {FRAME CONNECTION STRUCTURE}

The present invention relates to a frame connection structure, and more particularly, to a frame connection structure in which the structure is concise, simple, quick and easy to assemble, and the fastening position can be adjusted so that the assembly operation can be smoothly performed. .

In general, furniture such as desks, tables, and the like, and various structures such as pallets, shelves, etc. are manufactured using a frame material such as a square bar.

A frame is usually to support a load or an external force by arranging a vertical member and a transverse member to cross each other, and a connection structure is essentially required for coupling between the vertical member and the transverse member.

In such a frame connection structure, a welding method for joining between a vertical member and a transverse member by welding, or a fastening method for binding between the vertical member and the transverse member using a fastening member such as a bolt is mainly used.

The welding-type frame connection structure requires equipment such as a welding machine, takes a lot of time for assembly, and requires preparation work, as well as the disadvantages that the surface of the welded part is not beautiful, so post-processing such as grinding work or painting work is required. Therefore, manufacturing is cumbersome and difficult.

And since the frame connection structure of the fastening method is a structure connected by an assembly method, the above-described welding method problem can be solved to some extent. For example, as a frame connection structure technology of a fastening method, a frame connector for an office desk disclosed in Korean Patent Registration No. 10-1101395 has been proposed.

According to this patent registration No. 10-1101395, the frame of the iron office desk can be fixedly connected with a fixing bolt using a connector without fixing the frame by welding or the like. .

However, the conventional frame connector has a complicated structure, so it is difficult to manufacture, and it is difficult to deform into various shapes due to structural limitations.

In addition, the conventional frame connector has a complex structure, and there are too many fastening points of the fastening bolt 4 and the set screw 11, so it takes a lot of time to assemble.

In addition, in the conventional frame connector 1, since the fixing hole 7' is drilled at a specific position, it is impossible to assemble even with a small error when assembling the fixing screw 11, and the matching process is difficult. In addition, since the conventional frame connector 1 does not perform any other function other than the purpose of binding the frame 8 , there is a disadvantage in that it lacks usability and compatibility.

Korean Patent No. 10-1270636 "Connection structure of furniture frame" Korea Patent No. 10-1101395 'Office desk frame connector'

The present invention has been proposed in view of the above, and an object of the present invention is to provide a frame connection structure that is simple, simple, and can be quickly and easily assembled.

Another object of the present invention is to provide a frame connection structure so that the fastening position can be adjusted so that the assembly operation can be smoothly performed.

In order to achieve the above object, the frame connection structure according to the present invention is a frame connection structure having a frame connector for connecting a longitudinal member and a lateral member to each other, wherein the frame connector includes a support part, and the support part is extended to the support part and a binding hole is formed. a support hole including a connection part, which is perforated in the vertical member or the transverse member so that the support part is inserted; an insertion hole punched in the transverse member or the vertical member so as to communicate with the binding hole; and a fastening member inserted through the insertion hole and connected to the binding hole.

The support portion may include a body portion fitted into the support hole; an external seating protrusion protruding downward from one side of the body to be seated on the outer surface of the support hole; an inner seating protrusion protruding downwardly to the other side of the body to be seated on the inner surface of the support hole; And it may be configured to include a locking groove formed in a recessed portion between the outer seating projection and the inner seating projection so as to be caught on the end of the support hole.

On the other hand, the frame connection structure according to the present invention may further comprise a positioning protrusion protruding from the body portion of the frame connector, and the vertical member or the transverse facing so that the positioning protrusion and the external seating protrusion are inserted. A protrusion insertion groove formed in the member may be further configured.

Preferably, the frame connector is formed of a plate-like member, the external seating protrusion protrudes downward longer than the internal seating protrusion, and the fixed protrusion protrudes upward to have a height higher than the upper end of the connection part, and the inner The seating protrusion may have a structure provided with a curved portion curved in an arc shape at the lower end.

The vertical member and the transverse member may be formed of a rod-like member having a hollow portion, and the support hole and the protrusion insertion groove may be formed in a slit structure.

The connection part may be provided with an auxiliary connection part in which an auxiliary binding hole is perforated on a binding surface formed in an orthogonal direction.

In the binding hole, a plurality of fastening grooves may be formed in different directions to adjust a fastening position of the fastening member.

On the other hand, the frame connection structure according to the present invention may further include an auxiliary connection bracket coupled to the binding hole on the fastening member and having a plurality of auxiliary binding holes perforated therein.

According to the frame connection structure according to the present invention, since the frame connector is installed on the square rod and assembled in a fitting manner, the assembly operation can be performed quickly and easily without performing welding or complicated assembly process as in the prior art. It works.

In addition, the frame connection structure according to the present invention is provided with an auxiliary connection part or a binding hole having a plurality of fastening grooves in the frame connector, so that the fastening position can be adjusted so that the assembly operation can be performed smoothly. In addition, when the auxiliary connection bracket is used, various types of frame assemblies can be implemented, so that convenience and compatibility can be improved.

1 is a view for explaining a conventional frame connection structure;
2 is an exploded perspective view showing a frame connection structure according to a first embodiment of the present invention;
3 is a perspective view showing a frame connector of a frame connection structure according to a first embodiment of the present invention;
4 is a perspective view showing an example that can be applied as a longitudinal member and a transverse member of the frame connection structure according to the first embodiment of the present invention;
5 is a perspective view showing an assembled state of the frame connection structure according to the first embodiment of the present invention;
6 is a perspective view showing a form of a frame assembly assembled using a frame connection structure according to a first embodiment of the present invention;
7 is an exploded perspective view showing a frame connection structure according to a second embodiment of the present invention;
8 is an exploded perspective view showing a frame connection structure according to a third embodiment of the present invention.

Hereinafter, a preferred embodiment of the present invention will be described in detail based on the accompanying drawings 2 to 8, and the same reference numerals are given to the same components in FIGS. 2 to 8 to be described.

On the other hand, in each drawing, a detailed description of a configuration that can be easily recognized by a person skilled in the art from the general technique and an action and effect thereof will be simplified or omitted. In addition, since the present invention is characterized by a frame connection structure, the related parts will be mainly shown and described, and the description of the remaining parts will be simplified or omitted.

Figure 2 is an exploded perspective view showing the frame connection structure according to the first embodiment of the present invention, Figure 3 is a perspective view showing the frame connection structure of the frame connection structure according to the first embodiment of the present invention, Figure 4 is the first embodiment of the present invention A perspective view showing an example that can be applied as a longitudinal member and a transverse member of the frame connection structure according to the embodiment, Figure 5 is a perspective view showing the assembled state of the frame connection structure according to the first embodiment of the present invention.

2 to 5, the frame connection structure according to the first embodiment of the present invention is composed of a vertical member (1), a lateral member (2) and a frame connector (3), the structure is concise, simple and quick It is characterized in that it is configured for easy assembly.

The vertical member 1 is a component arranged in the longitudinal direction to constitute the frame assembly, and if it is a length member that can be bound to the transverse member 2 to constitute the frame assembly, it can be selected and configured without any particular limitation in shape or structure. have.

In addition, the longitudinal member 1 is formed of a bar-like member having a hollow portion for stable binding of the frame connector 3, and is preferably made of a rectangular bar or a section steel called a square bar as shown in FIG.

In addition, the vertical member 1 is formed with a support hole 12 into which the support part 31 of the frame connector 3 to be described later is inserted, the support hole 12 in the longitudinal direction so that the transverse member 2 can be assembled in multiple stages. A plurality is formed along the .

Here, the support hole 12 is perforated in a slit structure having a narrow width and a long length along the longitudinal direction of the vertical member 1 .

The transverse member 2 is a component that is bound to the aforementioned vertical member 1 to form a frame assembly, and is preferably formed of the same rod-shaped member as the vertical member.

In addition, the transverse member 2 is formed with an insertion hole 22 to communicate with the binding hole 33 of the frame connector 3 to be described later, and the insertion hole 22 has a fastening connected to the binding hole 33 . The member 4 is adapted to be inserted.

Here, the fastening member 4 may be applied without particular limitation as long as it is a binding means for binding the transverse member 2 and the frame connector 3 to each other, but in this embodiment, it is composed of a bolt and a nut.

On the other hand, the frame connector 3 is a connecting means for binding the vertical member 1 and the lateral member 2 to each other, and includes a support part 31 and a connection part extending to the support part 31 and having a binding hole 33 ( 32) is composed.

The support part 31 is a part to be fitted into the support hole 12, so that the body part 311 connected to the connection part 32 and the frame connector are seated on the outer surface of the support hole 12 in a state in which the frame connector is inserted into the support hole. An external seating protrusion 312 protruding downward from one side of the body 311, an inner protruding downward to the other side of the body 311 so as to be seated on the inner surface of the support hole 12 in a state where the frame connector is inserted into the support hole A locking groove 314 recessed between the outer seating protrusion 312 and the inner seating protrusion 313 is provided so as to be caught at the end of the seating protrusion 313 and the support hole 12 .

And it is preferable that the external seating protrusion 312 is formed to protrude longer than the internal seating protrusion 313 . As such, when the external seating protrusion 312 is formed longer than the internal seating protrusion 313, it is stably in close contact with the outer surface of the vertical member 1 to block the turning force applied from the lateral member 2 and support the load more stably action can be performed.

The inner seating protrusion 313 protrudes downward to a length that can be inserted into the support hole 12 together with the body 311, and has an arc shape so that smooth insertion and withdrawal operations are made easily when inserting and detaching at the bottom. A curved bent portion is formed.

In addition, the frame connector 3 may be formed of a material such as a round bar, but is preferably formed of a plate-like member in consideration of manufacturability and assembly stability. At this time, the thickness of the plate-shaped member is used to be formed in a dimension that can be inserted into the support hole (12).

In addition, the frame connector 3 is further configured with a positioning protrusion 34 protruding from the body 311 so as to stably maintain the assembly convenience and the bound state.

The positioning protrusion 34 protrudes to the upper portion of the body portion 311 to have a higher height than the upper end of the connection portion 32, and the protrusion height is lateral so as not to be exposed outside the surface of the lateral member 2 in the assembled state. It is preferable to be formed to have a height close to the thickness of the square rod constituting the member.

In addition, the transverse member 2 is formed with a protrusion insertion groove 23 that is perforated in a slit structure so that the positioning protrusion 34 and the external seating protrusion 312 are inserted. In addition, the protrusion insertion groove is recessed and formed in both ends of the transverse member in the vertical and left and right directions, respectively, in consideration of convenience and compatibility during assembly.

On the other hand, the vertical member (1) and the transverse member (2) can be separately manufactured, but in this embodiment, as shown in FIG. 4, in order to improve the convenience of quick assembly and manufacturing, the above-mentioned support hole 12 on the square bar ), the insertion hole 22, and the protrusion insertion groove 23 are respectively formed so that they can be used interchangeably as a vertical member (1) or a horizontal member (2).

Hereinafter, the operation of the frame connection structure according to the first embodiment of the present invention will be briefly described.

6 is a perspective view showing one form of a frame assembly assembled using the frame connection structure according to the first embodiment of the present invention.

First, as shown in FIG. 4, a support hole 12, an insertion hole 22, and a protrusion insertion groove 23 on a rectangular rod cut to a predetermined length so that it can be used as a vertical member 1 and a horizontal member 2 to form and prepare and prepare the frame connector 3 using press working or the like.

Among the square rods prepared in this way, a square rod to be used as the vertical member 1 is disposed as a post, and the internal seating protrusion 313 of the frame connector 3 is inserted into the support hole 12 of the vertical member 1 and caught Assembled so that the inner end of the groove portion 314 is caught on the end of the support hole (12).

When the frame connector 3 is assembled to the vertical member 1 in this way, it is inserted so that the hollow part of the transverse member 2 is inserted into the connecting part 32 , and through the insertion hole 22 on one side of the transverse member 2 . After inserting the bolt of the fastening member 4 to pass through the binding hole 33 and then fastening the nut, the assembly operation of one side of the transverse member 2 and the vertical member 1 can be completed.

At this time, since the fixed position protrusion 34 and the external seating protrusion 312 of the frame connector 3 are fitted into the protrusion insertion grooves 23 formed on the upper and lower sides of the lateral member 2, the assembly position can be stably maintained. and can perform an action of preventing torsion and oscillation together with a supporting action.

Then, the frame connector 3 is assembled in the support hole 12 of another vertical member 1 so that the other side of the transverse member 2 is assembled, and the hollow part of the transverse member 2 is inserted into the connecting part 32 . By repeatedly performing the method of fastening the fastening member 4 after inserting to be fitted, the frame assembly shown in FIG. 6 can be completed.

As described above, since the frame connection structure according to the first embodiment of the present invention is assembled by installing the frame connector 3 on a square bar and fitting each other without welding as in the prior art, it is possible to quickly and easily assemble it. There is this.

Hereinafter, another embodiment according to the present invention will be described, but detailed descriptions of components similar to those of the above-described first embodiment will be omitted, and components having differences will be mainly described. In addition, in the following other embodiments, as long as it is an employable structure among the components shown in the first embodiment or the components shown in different embodiments, the detailed description or drawings will be omitted as it may be selectively applied.

7 is an exploded perspective view showing a frame connection structure according to a second embodiment of the present invention.

Referring to Figure 7, the frame connection structure according to the second embodiment of the present invention consists of a vertical member (1), a lateral member (2) and a frame connector (3), the frame connector (3) is a support part (31) And, it is composed of a connection part 32 extending to the support part 31 and having a binding hole 33 formed therein, and an auxiliary connection part for binding with the connection part 32 in a direction different from the fastening direction with the binding hole 33 ( 35) is further constructed.

The auxiliary connection part 35 has a structure in which an auxiliary binding hole 352 is perforated on a binding surface formed in a direction perpendicular to the connection part 32 .

And, as shown in FIG. 7 , the auxiliary connection part 35 is formed on the upper part of one side of the connection part 32 and the lower part of the other side of the connection part 32 , respectively.

In addition, in addition to the form shown in FIG. 7 at the formation quantity and formation position of the auxiliary connection part 35, it can be configured by changing it into various forms according to the desired rigidity or type of the frame assembly.

The transverse member 2 is formed with an auxiliary insertion hole 26 which is perforated to be coaxial with the auxiliary binding hole 352 .

On the other hand, the support part 31 of the vertical member 1, the lateral member 2, and the frame connector 3 applied to the frame connection structure according to the second embodiment of the present invention is similar to the first embodiment described above. Since it is configured, a detailed description of the detailed configuration or a detailed description of the effect will be omitted.

And, in the frame connection structure according to the second embodiment of the present invention as described above, in the process of fixing the frame connector 3 to the lateral member 2, the fastening member 4 is inserted into the binding hole 33 of the connecting part 32. ), since the second fixing step of fastening the fastening member to the auxiliary binding hole 352 of the auxiliary connection part 35 is performed together with the first fixing step of fastening, it is possible to maintain a more robust and stable assembly state. Here, since the second fixing step is that the fastening member 4 is fastened in the vertical direction, if necessary, the first fixing step is omitted and only the second fixing step is performed. There are advantages that can be

8 is an exploded perspective view showing a frame connection structure according to a third embodiment of the present invention.

Referring to Figure 8, the frame connection structure according to the third embodiment of the present invention consists of a vertical member (1), a lateral member (2) and a frame connector (3), the frame connector (3) is a support part (31) and a connection part 32 extending to the support part 31 and having a binding hole 33 formed therein, and the connection part 32 may be formed in various lengths depending on the type or shape of the frame assembly to be manufactured. The binding hole 36 punched in the connection part 32 has a structure in which a plurality of fastening grooves 361 are formed in different directions.

Here, the binding hole 36 may be formed in various shapes, such as an elliptical long hole structure, but in this embodiment, four fastening grooves 361 are recessed in a crisscross structure so that the fastening position can be adjusted in the front and rear and left and rear directions. has been

In the frame connection structure according to the third embodiment of the present invention, even if there is an error in the puncturing position of the insertion hole 22 formed in the transverse member 2, a plurality of fastenings in the binding hole 36 in different directions as described above Since the groove 361 is formed, the position can be adjusted to some extent, and assembly can be performed smoothly, so there is an advantage in that assembly defects caused by manufacturing errors such as lateral members can be eliminated as in the prior art.

In addition, the frame connection structure according to the third embodiment of the present invention is coupled to the fastening member 4 and further comprises an auxiliary connection bracket 6 in which an auxiliary coupling hole 62 is perforated.

The auxiliary connection bracket 6 is not particularly limited in shape and structure so as to configure various types of fastening structures, but is formed in a substantially right-angled plate shape in this embodiment. In addition, the auxiliary fastening hole 62 is formed of a first auxiliary fastening hole 621 and a second auxiliary fastening hole 622 perforated in a crisscross shape on the upper and lower portions.

The auxiliary connection bracket 6 of the rectangular structure as described above inserts the upper part into the inside through the assembly hole 27 formed in the lateral member 2, and fastens the first auxiliary fastening hole 621 and the binding hole 36. Various frame assemblies can be implemented in a way of fastening and assembling by the member 4, and binding another longitudinal member or a separate reinforcing bar to the second auxiliary fastening hole 622 exposed to the outside of the lateral member 2 can

Since the support part 31 of the vertical member 1, the lateral member 2 and the frame connector 3 applied to the frame connection structure according to the third embodiment of the present invention is configured similarly to the first embodiment described above, A detailed description of the detailed configuration or detailed description of the effect will be omitted.

Although the configuration and operation of the frame connection structure according to the embodiment of the present invention described above has been described, this is an example and those of ordinary skill in the art will not deviate from the technical spirit of the present invention. It will be appreciated that some substitutions and variations are possible.

Therefore, it should be understood that the protection scope of the present invention extends to the invention described in the claims and their equivalents.

1: Longitudinal member 12: Support hole
2: transverse member 22: insertion hole
23: protrusion insertion groove 3: frame connector
31: support part 311: body part
312: external seating projection 313: internal seating projection
314: locking groove 32: connection part
33,36: binding hole 34: fixed position protrusion
35: auxiliary connection part 4: fastening member
6: Auxiliary connection bracket 62: Auxiliary binding hole

Claims (7)

In the frame connection structure having a frame connector for connecting the longitudinal member and the transverse member to each other,
The frame connector includes a support portion and a connection portion extending to the support portion and having a binding hole,
a support hole punched in the vertical member or the transverse member so that the support part is inserted; an insertion hole punched in the transverse member or the vertical member so as to communicate with the binding hole; and a fastening member inserted through the insertion hole and connected to the binding hole.
According to claim 1,
The support part,
a body part fitted into the support hole;
an external seating protrusion protruding downward from one side of the body to be seated on the outer surface of the support hole;
an inner seating protrusion protruding downwardly to the other side of the body to be seated on the inner surface of the support hole; and
Frame connection structure, characterized in that it includes a locking groove formed in a recessed portion between the outer seating projection and the inner seating projection so as to be caught at the end of the support hole.
3. The method of claim 2,
a position protrusion protruding from the body; and
Frame connection structure comprising a; protrusion insertion groove formed in the longitudinal member or the transverse member facing the positioning protrusion and the external seating protrusion to be inserted.
4. The method of claim 3,
The frame connector is formed of a plate-like member, the external seating protrusion protrudes downward longer than the internal seating protrusion, and the positioning protrusion protrudes upward to have a height higher than the upper end of the connection part, and the internal seating protrusion It consists of a structure provided with a curved part curved in an arc shape at the bottom,
The longitudinal member and the transverse member are formed of a rod-like member having a hollow portion, and the support hole and the protrusion insertion groove are formed in a slit structure.
5. The method of claim 4,
The connection portion is a frame connection structure, characterized in that the auxiliary connection portion is provided with an auxiliary binding hole perforated on the binding surface formed in the orthogonal direction.
6. The method according to any one of claims 1 to 5,
The coupling hole is a frame connection structure, characterized in that a plurality of fastening grooves are formed in different directions to adjust the fastening position of the fastening member.
6. The method according to any one of claims 1 to 5,
and an auxiliary connection bracket coupled to the coupling hole in the fastening member and having a plurality of auxiliary coupling holes perforated therein.

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