JPS6232469Y2 - - Google Patents

Description

[Detailed explanation of the idea] Industrial applications The present invention relates to a frame made of synthetic resin.

BACKGROUND ART In conventional frames, the frame portion is made of a rigid material such as wood or aluminum.

In contrast, recently, frames using synthetic resin frames have been proposed because they can be easily and inexpensively shaped into different shapes.

Problems that the invention aims to solve: However, synthetic resin picture frames are less rigid than the wooden or aluminum picture frames mentioned above, so they are reinforced by embedding a core material such as a wood core inside the picture frame. There was a problem that production costs were relatively high. In addition, since the core material is buried, the frame is manufactured by first molding the core material-containing frame pieces that make up each edge piece of the frame, then butting the edges of each frame piece together and using adhesive. It must be fixedly formed into a rectangular shape, which is cumbersome to process.

In view of these conventional drawbacks, the present invention aims to provide a frame made of synthetic resin that has improved overall rigidity by strengthening the engagement between the frame and the back plate.

Means for Solving the Problems The synthetic resin frame of the present invention is made of a synthetic resin channel material that has inner edge plates and outer edge plates protruding from both sides of the opening, and reinforcing rib plates protruding from the inside. is formed, a back plate is fitted into the inside of the picture frame, an engaging piece for restraining the inner edge plate of the picture frame is attached to the back plate, and the above-mentioned A protruding piece for fixing the back plate is rotatably provided.

Function: The picture frame and the back plate are fixed by the protruding pieces, and the engaging pieces provided on the back plate act to prevent deformation of the picture frame.

Embodiment Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

Figures 1 to 3 show a frame according to the present invention, which consists of a frame 2 made of channel material made of synthetic resin, and a back plate 5 fitted inside the frame 2. , an engagement piece 6 that prevents deformation of the picture frame 2
and a projection piece 7 for locking and fixing the back plate 5 to the frame 2. In addition, in FIG. 2, the reference numeral 11 indicates a decorative item such as a picture or photograph that is fitted into the frame 2.

The picture frame 2 has a frame body made of a so-called channel material with a lip made of synthetic resin, and the bottom plate of this channel material is connected to the front plate 2
1, the left and right side plates are the inner plate 22 and the outer plate 23, respectively, and the lip portions protruding from the left and right sides of the opening to face each other are the inner edge plate 24 and the outer edge plate 2, respectively.
It is set at 5. Further, inside the frame 2, reinforcing rib plates 26 and 27 are provided substantially horizontally opposite the front plate 21 from the inner wall surfaces of the inner plate 22 and the outer plate 23, respectively.

Further, the front plate 21 of the picture frame 2 has an inner peripheral edge formed into an inclined surface 28 tilted toward the back side, and an edge of this inclined surface 28 is formed into a stepped portion 29 projecting from the inner plate 22. . And this step 29
A glass plate 4 fitted into the frame 2 from the back side is received by the frame 2. In this example, the inner peripheral edge of the front plate 21 is made into an inclined surface 28 to enhance the design effect, but the present invention is not limited to this, and a more formal decorative effect can be achieved by molding an uneven pattern. may be increased. Further, the channel material forming the frame 2 itself may be colored in advance to enhance the colorful decorative effect. Furthermore, if metal foil such as aluminum foil, gold foil, silver foil, or copper foil is attached to the front plate 21 or the entire front plate 21 and outer plate 23 of this frame 2, a metallic decorative effect can be imparted. It can give a high-class impression.

As the synthetic resin used for the channel material constituting the frame 2, for example, acrylonitrile-butadiene-styrene copolymer (ABS), polyethylene, polyvinyl chloride (PVC), etc. are suitable.

The picture frame 2 as described above is formed by cutting a channel material 2a molded by extrusion into a length corresponding to the entire circumference of the picture frame 2, and then bending the channel material 2a. In other words, as shown in Fig. 3, the channel material 2a is notched at three locations P, Q, and R in the shape of a right-angled isosceles triangle (portions indicated by broken lines), and both ends 2b, 2b are cut at approximately 45 degrees ( (the part indicated by the broken line), then apply adhesive to each notch part of P, Q, and R, then bend it inward at each point of P, Q, and R to join it, and finally butt both ends 2b and 2b together. This butt part is held between two L-shaped clamping pieces 8, 8.
It is formed by fastening with. In addition, the above L
Fastening using the L-shaped clamping pieces 8, 8
are attached to the upper and lower surfaces of the reinforcing rib plates 26, 27 at the abutting portion of the channel material 2a so as to sandwich these rib plates 26, 27, and bolts 91 are attached to both L-shaped clamping pieces 8, 8. This is done by tightening both L-shaped clamping pieces 8, 8 in a direction that draws them toward each other (see Fig. 2). The L-shaped holding pieces 8, 8 may be used at all corners of the frame 2. In this way, the overall strength of the frame 2 can be improved. Moreover, a metal plate is optimal for the L-shaped holding pieces 8, 8.

The engaging pieces 6 are arranged on the back side of the back plate 5 at four
installed in place. This engaging piece 6 has a claw portion 61 formed at its tip, and its rear end is fixed to the back plate 5 with screws 92, and the claw portion 61 engages with the inner edge plate 24 of the picture frame 2. ing. In addition, the engagement piece 6
As shown in this example, the four pieces are not limited to being attached to four places on the top, bottom, left and right sides of the back of the back plate 5, but for example, the inner edge plates 24,
24, and an engagement piece that is approximately equal to the spacing between the inner edge plates 24, 24 on the left and right sides of the frame 2, and these are assembled on the back plate 5 in a cross shape. It may be attached or a single unit formed in a cross shape in advance may be attached. The material of the engaging piece 6 may be the same synthetic resin material as the frame 2, or may be a metal material.

In this way, the engagement piece 6 attached to the back plate 5
Since the inner edge plate 24 of the picture frame 2 is restrained by the... and the abutted portions of the channel material 2a are fastened by the L-shaped clamping pieces 8, 8 as described above, the rigidity of the picture frame 2 is further improved. do.

The protrusion piece 7 has a rotation shaft part 71 on its back side,
A retaining portion 72 projecting like a brim is formed at the tip of the rotation shaft portion 71 . This protruding piece 7 is rotatably held by a rotating shaft part 71 fitted between the inner edge plate 24 and outer edge plate 25 of the picture frame 2,
The rotation shaft portion 71 may be made to have approximately the same width as the interval between the inner edge plate 24 and the outer edge plate 25, or may be formed into a distorted shape such that rotation stops when the protruding piece 7 locks the back plate 5. good. Note that the position and number of the protruding pieces 7 are not limited to the illustrated example. Projection piece 7
The material may be the same synthetic resin material as the frame 2, or may be a metal material.

By configuring the frame as described above, the frame 2
The back plate 5 is fixed by a protruding piece 7, and an engaging piece 6 of the back plate 5 is used to prevent deformation of the frame 2.
works to prevent this.

As shown in FIG. 4A, the screw hole 62 of the engagement piece 6 is a long hole extending from the rear edge 63 side of the engagement piece 6 toward the claw part 61 side, and the periphery of this screw hole 62 is If it is tilted diagonally downward from the edge 63 side toward the claw part 61 side, when the screw 92 is screwed in, the peripheral edge of the screw hole 62 will be placed on the head of the screw 92, thereby causing the engaging piece 6 to be It can be fixed so that the claw portion 61 of the engagement piece 6 always tightens the inner edge plate 24 of the picture frame 2 by sliding in the direction toward the center of the plate 5 (direction S in FIG. 4). Further, in this case, if the shape of the claw portion 61 is formed into a hook shape as shown in FIG. 4B, the state of engagement with the inner edge plate 24 of the picture frame 2 becomes more reliable and strong.

5A and 5B and FIG. 6 show other embodiments of the engagement piece 6. In the one shown in FIG. 5A, the screw 92 is omitted and the rear edge The one shown in FIG. In the illustrated example, the claw portion 61 is bent inward in a substantially dogleg shape. When formed in this way, it can be elastically engaged with the inner edge plate 24 of the picture frame 2, and the engagement force can be increased. Also, this is
It is applicable to all of the above embodiments.

FIG. 7 shows another embodiment of the L-shaped clamping piece 8, in which two L-shaped clamping pieces 8, 8 are spaced apart from each other at a distance approximately equal to the thickness of the reinforcing rib plates 26, 27 of the picture frame 2. They are opposed to each other and connected by a vertical rib 81, and have a substantially E-shape in longitudinal section.

Effects of the invention In the synthetic resin picture frame of the present invention, the picture frame is formed of a channel material made of synthetic resin, which has an inner edge plate and an outer edge plate protruding from both sides of the opening, and a reinforcing rib plate protruding from the inside. Moreover, since each inner edge plate on the four sides of the picture frame is configured to be restrained by an engaging piece attached to a back plate fitted inside the picture frame, there is no core inside the picture frame like in the past. The frame has very high rigidity even without reinforcing it by burying wood, and the frame will not deform due to changes in indoor temperature, etc., and since the frame itself is made of synthetic resin, it can be easily installed. It can be molded into various shapes, has a small number of parts, and can be supplied at low cost. Further, since the engaging piece is engaged with the inner edge plate of the picture frame, it is not visible from the front side of the picture frame, and does not spoil the appearance. Furthermore, since the protrusion piece is rotatably provided between the inner edge plate and the outer edge plate of the picture frame, there is no need to separately provide a mounting hole for the protrusion piece on the frame, and the position of the protrusion piece can be adjusted. Can be easily changed.

[Brief explanation of drawings]

The figures show an embodiment of the synthetic resin frame according to the present invention, Fig. 1 is a rear view of the synthetic resin frame, Fig. 2 is a sectional view taken along the line - - in Fig. 1, and Fig. 3 shows the assembly procedure of the frame. FIG. 4A is a sectional view showing another example of the screw hole portion of the engaging piece, and FIG. 4B is a rear view of the channel material with lip shown for explanation. 5A, B and 6 are sectional views showing other embodiments of the engaging piece, and FIG. 7 is a perspective view showing another embodiment of the L-shaped clamping piece. . 1... Frame, 2... Picture frame, 2a... Channel material, 24... Inner edge plate, 25... Outer edge plate, 26,2
7...Reinforcing rib plate, 5...Back plate, 6...Engagement piece, 7...Protrusion piece.

Claims (1)

[Scope of utility model registration request] A picture frame is formed of a synthetic resin channel material with inner edge plates and outer edge plates protruding from both sides of the opening and reinforcing rib plates protruding from the inside.A back plate is fitted inside the frame, and the back plate is inserted into the frame. An engagement piece for restraining the inner edge plate of the picture frame is attached to the plate, and a protrusion piece for fixing the back plate is rotatably provided between the inner edge plate and the outer edge plate of the picture frame. A frame made of synthetic resin.