JPS6311224Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a joining structure in which corner portions of frame members are joined in abutted state.

When assembling edges, etc. by cutting the corners of framing materials at 45 degrees or at an appropriate angle and butting them together, it is necessary to have a joint structure where there are no gaps or differences in the butting points, and which allows easy and strong assembly. Everything had its pros and cons, and I was never satisfied with anything.

This invention has no gaps or differences in the butting points of the corners of the frame materials with small overall dimensions and small cross-sectional dimensions, and can be easily and firmly assembled. Decorative edges, architectural panel ceiling framing materials, picture frames, fittings, fixtures, etc.
It can be used for other purposes, and can be used for both the outside and inside corners.

In the present invention, a coupling device with a screw inserted therein is used to screw two opposing substantially L-shaped coupling pieces into one of them, and one coupling piece is engaged with a protrusion of the framework material, and the screw is inserted into the other. By moving the connecting pieces in the direction of the connecting pieces, the connecting pieces draw the frame members together through the protrusions, so that the butted parts of the frame members can be assembled without any gaps or differences in level.

When the frame material has a protruding corner, the bending angle of one joint piece should be made larger than the butt angle of the frame material. This is because, as described later, when a screw is fitted into the joint piece, the joint piece tends to become smaller than the butt angle, so if the butt angle is the same or smaller, the butt part of the frame material will be open. It becomes impossible to match.

When the frame material has an inside corner, the bending angle of one joint piece should be smaller than the butt angle of the frame material. This is because the connecting portion of the connecting piece is connected to the locking portion of the protrusion.

Embodiments of the invention are explained in the drawings.

The embodiment shown in FIGS. 1 to 3 is a decorative end edge of a louver for a lighting box, and the framework member 1 has an end face 2 cut at 45 degrees, and one longitudinal end having a locking part 3. A protrusion 4 is provided.

The connector 5 has one approximately L-shaped connector piece 6 bent at 90 degrees and an engaging portion 7 bent at the end.
The other connecting piece 8 is approximately L-shaped and is bent at an angle larger than the degree, and one screw hole 9 of the one connecting piece 6
and a screw 11 inserted through one hole 10 of the other coupling piece 8.

To assemble the frame material 1 with the protruding corners, first remove the screws 12 from both of the connecting pieces 6 and 8, bring the end surfaces 2 of the frame material 1 into abutment state, and then insert the screws 12 from the other connecting piece 8. The engaging part 7 is engaged with the locking part 3 of the protrusion 4 of the framework material 1 from the inside, one of the coupling pieces 6 is placed outward of the protrusion 4, and the screw 11 is inserted into the thread of one of the coupling pieces 6. When inserted into the hole 11 and rotated so as to be screwed into each other, both connecting pieces 6 and 8 approach each other, and one of the connecting pieces 6 comes into pressure contact with the protrusion 4, so that the frame member 1 is inserted through the protrusion 4. Pull together and assemble the frame materials together.

In the above-mentioned embodiment, the frame members 1 have an extended corner, but when assembling them as an inside corner, the other connecting piece 8 of the connecting tool 5 is bent at an angle smaller than 90 degrees and the screw hole 9 of one connecting piece 6 is bent. It is sufficient to make the hole a blind hole, and make the blind hole 10 of the other connecting piece 8 a screw hole.

When the engagement tool 5 is used for both the outside corner and the inside corner of the framework material 1, two sets of opposing holes are provided in one connecting piece 6 and the other connecting piece 8 as shown in FIGS. 4 and 5. 9 and 10 and holes 9 ₁ and 10 ₁ are provided, and hole 9 is used as a screw hole and hole 10 is used as a blind hole to be used in the case of an external corner.Conversely, hole 9 ₁ is used as a blind hole and hole 10 ₁ is used as a screw hole. Used for inside corners.

The present invention has a simple structure, is easy to operate, and can be firmly assembled without gaps or differences, making it very convenient in practice.

[Brief explanation of drawings]

Fig. 1 is a plan view of the decorative edge according to the present invention, Fig. 2 is a partially enlarged bottom view, Fig. 3 is a side view of Fig. 2, and Figs. 4 and 5 are plan views of the engaging piece. be. 1... Frame material, 2... End face, 3... Locking part, 4
... protrusion, 5 ... coupling tool, 6 ... one coupling piece,
8...Other connecting piece, 7...Connecting portion, 9...Screw.

Claims (1)

[Scope of utility model registration request] One approximately L-shaped coupling piece 6, the other approximately L-shaped coupling piece 8 having an engaging portion 7 at the end, and one coupling piece 6 that is inserted through one coupling piece 6 and the other coupling piece 8. 6 and the other connecting piece 8 of the engaging tool 5, which is made of a screw 9 screwed into one of the other connecting pieces 8.
The engaging part 7 of the frame member 1 is engaged with the locking part 3 of the protrusion 4 of the frame member 1, and one coupling piece 6 is pressed against the protrusion 4.