JPH0414660Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a coupling device for assembling and connecting two or more channel members in a mutually intersecting state.

[Prior art] As for the connection structure of this type of channel material, Japanese Utility Model Application Publication No. 123503/1983 discloses that inserting rods are respectively provided protruding from the lateral outer surfaces of a rectangular parallelepiped joint, and these inserting rods are connected to rectangular channel members. It is disclosed that the cross-assembly is performed by inserting it into the hollow part of the holder and bolting it through the through hole.

Regarding the tightening structure, Japanese Utility Model Publication No. 48-27318 and Japanese Utility Model Application Publication No. 59-56405 disclose a technique in which a tapered surface is provided on the insertion piece and the screw is tightened by applying it to the tapered surface from the outside of the main body. ing.

[Problem to be solved by the invention] However, even if the above-mentioned conventional configurations are combined,
In all cases, the screws were exposed on the outside of the main body or channel material. Moreover, the joints, which were not aesthetically designed as in Utility Model Application No. 55-123503, were exposed at the intersections, and the appearance was not desirable. Particularly in the case of assembled furniture made of channel materials, if such joints were visible from the outside, the product value would be diminished.

Therefore, in order to hide the screw-fastening points, the present applicant created a rectangular tube section with a hollow center, and a groove section extending radially from the corner of the rectangular tube section and having a tip bent into an L-shape. An L-shaped part that forms three rectangular surfaces through the L-shaped part, a substantially trapezoidal side hollow part defined by the L-shaped part and the square tube part, and an arc-shaped part whose one side can be bent into an arc shape in the longitudinal direction. We have developed a channel material in which a hole is formed in the square tube near the end face and communicates with the central hollow part. Since such channel materials have arcuate portions, special measures are required at the intersections. Moreover, it is necessary to have a structure that is lightweight so as to match the channel material.

SUMMARY OF THE INVENTION An object of the present invention is to provide a coupling tool for channel materials that can easily and beautifully connect channel materials having an arcuate portion on one side with a lightweight structure.

[Means for Solving the Problems] The channel material connector according to the present invention includes a rectangular tube portion with a hollow center, and an L-shaped tip extending radially from the corner of the rectangular tube portion. an L-shaped portion that is bent to form a three-sided rectangular surface through a groove;
A substantially trapezoidal side hollow portion defined by a character-shaped portion and a square tube portion, and an arcuate portion whose one side is bent into an arc shape are formed in the longitudinal direction, and the square tube portion near the end face communicates with the central hollow portion. The invention relates to a special structure of two channel materials in which holes are drilled.

This channel material coupling tool has two mounting surfaces on the outside that abut each end surface of the channel material.
A mounting member consisting of two mounting plates integrally formed in a letter shape, screw insertion holes provided in each of the mounting surfaces, and an insert that protrudes from the outside of each of the mounting surfaces and is inserted into the central hollow part. a rod, a downwardly sloped surface portion formed on the insertion rod and directed toward the mounting surface, a set screw that is screwed into each of the holes and whose tip presses each of the sloped surfaces, and a closing member that is placed on the inside of each of the mounting surfaces. The closing member is composed of two side surfaces continuous to opposing rectangular surfaces of the channel material, a curved back surface and a curved top surface continuous to the arcuate part of the channel material from the cross direction, and a side surface from the hollow inside. The protrusion has an L-shaped opening and a screw hole provided in the opening.

[Operation] The side opening of the closing member is placed on the L-shaped inside of the mounting surface, the protrusion is brought into contact with the side opening, and then screwed through the insertion hole of the mounting surface. As a result, the closing member and the attachment member are assembled in a hollow state.

Next, insert one of the insertion rods into the central hollow part of the end face of one channel material, and insert the set screw through the groove into the hole in the side hollow part, which is separated by the L-shaped part and cannot be seen immediately from the outside. Screw in and tighten. Similarly, if the set screw is tightened without being visible, the rectangular surface of the channel material and the side surface of the closing member will be continuous, and the arcuate portion will be continuous from the cross direction to the curved back surface and the curved top surface. Assembled in good condition.

[Embodiment of the invention] An embodiment of the invention will be described below with reference to FIGS. 1 to 7. 1 to 5 show a first embodiment.

The channel material 1 has a central hollow part 2 with a rectangular cross section.
is formed in the longitudinal direction. Further, a hole 4 communicating with the central hollow part 2 is bored in the square tube part 10 of the end face 3 of the channel material 1.

The coupling tool includes a mounting member 6 formed by intersecting two mounting surfaces 5, 5 in an L shape that abut the end surface 3 of the channel material 1, and a mounting member 6 that protrudes from each of the mounting surfaces 5 and connects to the hollow portion. Column-shaped insertion rod 7 inserted into 2
and a downwardly inclined surface portion 8 formed on the insertion rod 7 and directed toward the mounting surface 5, and screwed into the hole 4,
It is composed of a set screw 9 whose tip presses against the inclined surface portion 8.

The channel material 1 includes a rectangular tube portion 10 with a square cross section located at the center, and flat plate-shaped extension portions 12, 12, 13 extending radially outward from each corner 11 of the rectangle tube portion 10. , 13, and an L-shaped portion 1 extending from the extension portions 12, 12 and having an L-shaped tip bent.
4, 14, and an arcuate portion 15 extending from the extending portions 13, 13. Around the square tube part 10, there are three side hollow parts 16 having a trapezoidal cross section,...
... are formed, and each side hollow part 16 is opened to the outside by a groove part 17. Said central hollow part 2
can be configured, for example, as an internal space of the rectangular tube portion 10. The hole 4 is bored in the side surface of the rectangular tube portion 10.

Next, the above-mentioned coupling tool will be described in detail. The mounting member 6 is composed of two mounting plates 18, 18 that are integrally mounted in a right-angled L shape. The mounting surfaces 5, 5 are formed on the outer surface of each of these mounting plates 18, 18. The mounting surface 5 is the end surface 3 of the channel material 1
It is assumed that the shape matches the .

Further, the set screw 9 can be configured to be screwed into a screw hole 23 of the backing plate 22, for example. A bottomed square hole 24 is formed in the end face of the set screw 9.
The abutting plate 22 is composed of an abutting plate 25 in which the screw hole 23 is formed, and connecting plates 26, 26, and the trapezoidal side hollow part 1 of the channel material 1.
It is formed into an approximately octagonal shape so that it can be inserted in the direction of arrow B.

Further, in the figure, 27 is a closing member, and the mounting member 6
It is placed on the inside of the L-shape. The closing member 27 has two side surfaces 28 and 28 that are continuous with opposing rectangular surfaces of the channel material 1 as shown in the figure.
, a curved back surface 29 that continues to the arcuate portion 15 of the channel material 1, and a curved back surface 29 that is continuous to the arcuate portion 15 of the channel material 1;
It has a lid shape from the curved upper surface 30 continuous to 5,
Front surface 31 with side surfaces 28, 28 opened in an L-shape
The lower surface 32 is formed into an open hollow shape. There are screw holes 3 in the front surface 31 and the bottom surface 32.
2, . . . are provided. The screw holes 32, . . . have screws 36, . . . inserted through the respective insertion holes 35, .
is screwed on.

Next, a case will be described in which the channel materials 1, 1 are combined.

First, the closing member 27 is attached to the mounting member 6 by screwing the screws 36, . . . through the insertion holes 35, .
Around this time, the contact plate 22 is inserted into the space 16 of one of the channel members 1, and the tip of the set screw 9 is slightly inserted into the hole 4 and set so as not to shift.

Next, as shown in FIG. 4, the insertion rod 7 is inserted into the hollow portion 2, and the end surface 3 of the channel material is brought into contact with the mounting surface 5. After that, when the set screw 9 is screwed in through the hole 4, the tip of the set screw 9 becomes
Since the downwardly inclined surface portion 8 of the insertion rod 7 is pressed, the channel material 1 is tightened to one of the mounting surfaces 5.
Similarly, by setting and tightening the other abutment plate 22 and insertion rod 7 on the other channel, the channel materials 1, 1 are firmly connected via the mounting member 6 in an orthogonal state.

6 and 7 show a second embodiment of the present invention. The feature of this embodiment is that the hole 4' of the channel material 1
The second embodiment has the advantage that the stop plate 22 of the first embodiment is omitted by using screw holes 4' and directly attaching the setscrews 9, 9 to the holes 4'.

[Effects of the invention] As explained above, the invention provides the following effects.

The channel material is made of a rectangular cylindrical part with a hollow center, and an L extending radially from the corner of the rectangular cylindrical part and bent into an L-shape at the tip to form three rectangular surfaces via grooves. A substantially trapezoidal side hollow portion defined by a character-shaped portion, an L-shaped portion and a square tube portion, and an arcuate portion whose one side is bent into an arc shape are formed in the longitudinal direction, and the square tube portion near the end face is formed in the longitudinal direction. Since it has a structure in which a hole communicating with the central hollow part is bored, a set screw can be provided in the square tube part inside and tightened through the side hollow part hidden by the L-shaped part, and it has a beautiful appearance. It was possible to suitably put it into practical use in assembled furniture, etc.

Even in the case of a channel material having an arcuate portion on one side, the curved upper surface and the curved back surface can be curved continuously in an intersecting state by the closing member,
We were able to improve the safety of the corners.

Since the closing member is hollow and assembled with the mounting plate on the inside of the L shape, the weight of the connector can be reduced to the same level as channel material, and the strength can be increased by reinforcing the mounting member. .

[Brief explanation of drawings]

Drawings 1 to 5 relate to a first embodiment of the channel material coupling device according to the present invention, in which FIG. 1 is a perspective view of the coupling device, FIG. 2 is an assembled cross-sectional view, and FIG. 3 is a cross-sectional view of the same. Figure 2 is a sectional view taken along the - line, Figure 4 is a sectional view during assembly, Figure 5 is a sectional view of completed assembly, Figures 6 and 7.
The figure relates to the second embodiment, and FIG. 6 is an assembled sectional view of the same.
FIG. 7 is a sectional view taken along the line -- in FIG. 6. 1...Channel material, 2...Central hollow part, 3...
... End face, 4 ... Hole, 5 ... Mounting surface, 6 ... Mounting member, 7 ... Insertion rod, 8 ... Downward slope part, 9 ...
... Set screw, 10 ... Square tube part, 12, 13 ... Extension part, 14 ... L-shaped part, 15 ... Arc-shaped part, 1
6...Side hollow part, 17...Groove part, 18...Mounting plate, 27...Closing member, 28...Side surface, 29...
Curved back surface, 30... Curved upper surface, 32... Screw hole, 34... Projection.

Claims (1)

[Claims for Utility Model Registration] A rectangular cylindrical portion having a hollow portion in the center, and a rectangular surface on three sides extending radially from the corner of the rectangular cylindrical portion with the tip bent into an L-shape through grooves. An L-shaped part to be formed, a substantially trapezoidal side hollow part partitioned by the L-shaped part and the rectangular tube part, and an arc-shaped part whose one side is bent into an arc shape are formed in the longitudinal direction. A connector for connecting two channel materials, the square tube having a hole that communicates with the central hollow part, the connector having two mounting surfaces on the outside that abut each end surface of the channel materials. A mounting member consisting of two mounting plates integrally formed in a letter shape, a screw insertion hole provided in each of the mounting plates, and an insertion rod protruding from each of the mounting surfaces and inserted into the central hollow part. , consisting of a downwardly sloped surface portion formed on the insertion rod and directed toward the mounting surface, a set screw that is screwed into each of the holes and whose tip presses each of the sloped surfaces, and a closing member that is placed on the inside of each of the mounting surfaces. The closing member has two side surfaces that are continuous with the opposing rectangular surfaces of the channel material, a curved back surface and a curved top surface that are continuous with the arc-shaped part of the channel material from the cross direction, and a side surface that extends from the hollow inside. A coupling device for channel materials, comprising a protrusion having a letter-shaped opening and a screw hole provided in the opening.