JPH0420294Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a connecting fitting for a picture frame for reliably and firmly butting the corners of frame members.

When assembling a picture frame by cutting the corner parts of the frame materials at 45 degrees and butting them together, if there are gaps or unevenness in the butt parts of the frame materials, it will be very unsightly and will reduce the impression of the work. .

Therefore, as a joint structure to eliminate the gaps and unevenness of the butt parts of the frame materials, for example,
- Although the technology of Publication No. 6610 is disclosed, as can be seen in the above publication, the conventional joint structure has many drawbacks such as a complicated structure, a large number of parts, and furthermore, it is troublesome to operate. It was hot.

The present invention was devised in order to eliminate all of these drawbacks of the conventional example at once.First of all, there are no gaps or differences in the butt part of the frame materials, and it is reliable and solid, and furthermore, the butt can be easily performed. In addition, the structure is simple and the number of parts is small.
The purpose of the present invention is to provide a connecting fitting for a picture frame that is inexpensive to manufacture.

That is, the present invention includes an L-shaped connecting plate having first upright pieces that stand up on the inside and have screw holes bored therein at both ends of the connecting plate; and a connecting fixing plate having second upright pieces for holding screws which are respectively provided and are opposed to the first upright pieces and are screwed into the screw holes.

Next, it will be explained based on the drawings.

FIG. 1 is an exploded perspective view of a connecting fitting according to an embodiment of the present invention, and FIGS. 2 and 3 are exploded perspective views showing a connecting structure of a frame corner using the connecting fitting.

The frame members 1a, 1b have end faces 2 cut at 45 degrees, and grooves 3 into which the connecting fittings A are inserted are formed in the longitudinal direction. Note that the groove 3 is provided with open edges 4a and 4b.

The connecting fitting A is bent into a substantially L-shape, and has open edges 4a and 4b that are slightly narrower in width than the width of the groove 3.
The connecting plate 5 is made up of a connecting plate 5 which is wider than the interval between the connecting plates 5 and 2, and two connecting fixing plates 6, 6a and 6b connected to the connecting plate 5 through screws and fixed to the grooves 3 of the framework material.

Both ends of the L-shaped connecting plate 5 are formed into an inclined edge 9 of approximately 45 degrees from the short back side edge 7 to the longer front side edge 8, and are further formed at approximately 90 degrees toward the inside from the middle of this inclined edge 9. A first upright piece 10 is provided which is bent and whose width is narrower than the interval between the open edges 4a and 4b.

Further, a screw hole 11 is provided in the center of this upright piece 10.
is drilled.

On the other hand, in the fixed plate 6, the inclined edge 9 of the connecting plate 5
The edge on the side opposite to is the inclined edge 1 similar to the connecting plate 5.
It is formed in 2. Moreover, this inclined edge 12 is
In order that both the inclined edges 9 and 12 are substantially parallel in the groove 3, the inclined edge 12 is formed at an angle of about 45 degrees to the front side edge 14, which is shorter than the back side edge 13, contrary to the inclined edge 9. A second upright piece 15 having substantially the same shape and size is formed to face the first upright piece 10 from the inclined edge 12 .

At the center of the upper part of the upright piece 15 on the fixed plate 6 side,
A screw hooking portion 18 is cut out to which a screw 17 can be fixedly hooked. Further, a screw hole 20 is bored in the center of the fixing plate 6 for fixing the fixing plate 6 with a screw 19 at a predetermined position in the groove 3 of the framework members 1a, 1b. Note that the width of the fixed plate 6 is approximately the same as the width of the connecting plate 5.

To assemble the frame members 1a, 1b using such a connecting fitting A, first insert the fixing plates 6a, 6b into the grooves of the frame members 1a, 1b so that the upright pieces 15 thereof are on the butt end surface 2 side of the frame members 1a, 1b. 3 and fix it in place with screws 19.

Even when the entire length of one piece 5a of the connecting plate 5 is completely inserted into the groove 3 of the framework member 1a, the predetermined location is still the same as the upright piece 10 of the connecting plate 5 and the upright piece 15 of the fixed plate 6. The connecting plates 5 and the fixing plates 6 face each other with a slight distance B between them without coming into contact with each other, and this distance B is the position where the connecting plate 5 and the fixed plate 6 are connected by passing the screws 17.

Then, the connecting plate 5 is completely inserted into the groove 3. At this time, the screw 17 is inserted into the screw hole 11 of the first upright piece in advance.
You can pass some of it through.

Then, screw the screw 17 into the second upright piece 1 of the fixing plate 6.
5, and tighten the screw 17 with a screwdriver. By tightening the screws, the connecting plate 5 and its upright pieces 10 are strongly attracted to the fixed plate 6, and the distance B between the upright pieces 10 and 15 tends to narrow. At this time, as a reaction to the tightening action of the screw, the framework material 1
a, 1b are strongly drawn toward the end face 2 side, and assembly is performed on the end face 2 of the framework member without gaps or differences in level.

It should be noted that if the side edges of the connecting plate 5 and the fixing plate 6 that face each other are formed as inclined edges of approximately 45 degrees as in this embodiment, the effect of drawing the frame members together will be greater. However, it is indeed possible to observe a pulling effect between the framing members, not necessarily with oblique edges, ie with vertical edges. Therefore, the opposing edges of the connecting plate 5 and the fixing plate 6 are not limited to sloped edges.

Furthermore, from a manufacturing standpoint, it would be better if both ends of the fixed plate 6 had the same shape, since there would be no selectivity with respect to both ends of the connecting plate 5, which would be extremely difficult in terms of design, mass production, cost, workability, etc. preferred. Therefore, both ends of the fixing plate 6 may have a configuration in which both sides have symmetrical inclined edges and upstanding pieces having the same shape.

As explained above, according to the connecting fitting of the present invention,
Each of the first upright pieces formed on both side edges of the connecting plate and the opposing second upright piece of each fixed plate provided opposite to each of the first upright pieces are both frame members. The first and second
Since the structure is such that the tightening of the screws on both upright pieces can be operated from outside the groove, the screw tightening work is easy, and since the connecting plate is forcibly tightened with the screws from one of the fixing plates, The reaction force strongly draws the frame material toward the end surface, making it possible to obtain a picture frame with abutting surfaces that have no gaps or unevenness. Furthermore, since the number of parts is small and the structure is simple, it has very high practical value.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of a connecting fitting according to an embodiment of the present invention, and FIGS. 2 and 3 are exploded perspective views showing a connecting structure of a frame corner using the connecting fitting. A... Connecting metal fittings, B... Spacing, 1a, 1b...
Frame material, 3...Groove, 5...Connecting plate, 6, 6a, 6
b... Fixed plate, 10, 15... Upright piece, 11, 2
0...screw hole, 17...screw, 18...screw hooking part.

Claims (1)

[Scope of utility model registration request] an L-shaped connecting plate having first upright pieces that stand up on the inside and have screw holes bored therein at both ends of the connecting plate; and a connecting fixing plate having a second upright piece facing the first upright piece and for holding a screw screwed into the screw hole.