JPH0420297Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a frame connector for assembling frames by connecting frames.

[Conventional technology]

As shown in FIG. 5, the conventional forehead frame connector D has a presser spring 14 at the corner of a back surface 13 of a frame connector base 12 that is L-shaped as a whole and has an L-shaped cross section. A support portion 15 is provided, and the support portion 15
Cut slits 16 are formed on the left and right sides of the frame A, and engaging pieces 18 are provided that engage with the locking grooves 17 of the vertical frame A and the horizontal frame B, respectively. It has a structure in which a removal piece 19 is provided for removing the engagement piece 18 from the locking groove 17.

Then, using the frame connector D of such a frame, the vertical frame A
Insert one side and the other side of the frame connector D into the guide groove 20 of the horizontal frame B, respectively, and connect the vertical frame A and the horizontal frame B.
The engagement piece 1 of the frame connector D is inserted into the locking groove 17 formed in the
8 is engaged to connect the vertical frame A and the horizontal frame B to assemble the frame.

[The problem that the idea attempts to solve]

However, the frame connector D has cut slits 16 on the left and right sides of the support portion 15, engagement pieces 18 on each side, and release pieces 19 in the vicinity thereof, so the structure is The disadvantage is that it becomes complicated. Furthermore, since the cut slits 16 are provided on the left and right sides of the support portion 15, cracks are likely to occur there. Moreover, the support part 15
Since the presser spring 14 provided in the frame is simply a flat spring with a part bent, its elastic force is weak and it is difficult to reliably support the back plate of the forehead such as a foam plate, and the position of the plate may shift. Something happened.

In order to solve this problem, a forehead frame connector as shown in FIG. 6 has been proposed (Japanese Utility Model Publication No. 53-94291).

The frame connector of the forehead consists of an upright piece 21a and a horizontal piece 2.
There is a frame connector base 26 consisting of 1b, and its upright piece 21a and horizontal piece 21b are inserted into the guide grooves 22 of the vertical frame A and the horizontal frame B, respectively, and the vertical frame A and the horizontal frame B are connected to each other.
The vertical frame A and the horizontal frame B are connected by engaging an engaging piece 25 which also serves as a release piece in a locking groove 24 in a portion where a slit portion 23 is formed. By removing the engagement piece 25 that is engaged with the frame 24, the connected vertical frame A and horizontal frame B can be disassembled.

However, since the engagement piece 25 that also serves as the removal piece is an engagement piece that is removed from the locking groove 24 by moving toward the cylinder interior of the vertical frame A and the horizontal frame B, When removing the piece 25, there is a risk that the fingers may come into contact with the sharp edges of the locking grooves 24 formed in the vertical frame A and the horizontal frame B, causing injury.

Furthermore, since the engaging pieces 25 are provided on the upright piece 21a and the horizontal piece 21b of the frame connector base 26, when disassembling the vertical frame A and the horizontal frame B, both the engaging pieces 25 are engaged. The operation is cumbersome since each of them has to be removed from the stopper groove 24. Therefore, it is not easy to disassemble the forehead.

Furthermore, since the engaging piece 25 engages with the locking groove 24 only by its own spring force, there is a risk that it may come off inadvertently due to vibration or the like.

The present invention was developed in view of the above, and its purpose is to enable the frame, that is, the connected vertical frame and horizontal frame, to be disassembled safely and easily, and to prevent the engaging piece from accidentally slipping out of the locking groove. To provide a frame connecting tool for a forehead that does not come off and can securely hold the back plate of the forehead.

[Means for breaking down issues]

The forehead frame connector of the present invention is constructed by inserting one side and the other side of the frame connecting base into the guide grooves of the vertical frame and the horizontal frame of the forehead, respectively, and inserting the frame into the locking grooves formed in the vertical frame and the horizontal frame. In a frame connecting tool for assembling a frame by connecting the vertical frame and the horizontal frame by engaging the engaging pieces provided at both ends of the connecting base, each of the engaging pieces provided at both ends of the frame connecting base also serves as a removal piece. An engaging piece is provided,
A feature is that a V-shaped presser spring is provided between the two engaging pieces to connect the two together.

[Effect]

If engagement pieces that also serve as release pieces are provided at both ends of the back surface of the frame connection base, and a V-shaped presser spring is provided between the engagement pieces to connect the two together, the engagement pieces can be engaged. The engaging piece can be removed from the locking groove by operating a portion far away from the locking groove, thereby eliminating injury caused by contact with the edge portion of the locking groove.

In addition, when the vertical frame and the horizontal frame are disassembled by integrally connecting both engaging pieces with a presser spring,
Both engaging pieces provided at both ends of the frame connecting base are simultaneously removed from the locking grooves and easily removed with a small amount of operation.

Further, when the frame connector is attached, the engaging piece is constantly pressed against the locking groove by the spring force of the presser spring that integrally connects both engaging pieces. Therefore, the engagement piece will not be accidentally removed from the locking groove even due to vibration or the like.

Further, the back plate of the forehead is also securely held by the spring force of the V-shaped presser spring.

〔Example〕

Hereinafter, the present invention will be explained in detail with reference to the drawings.

FIG. 1 shows an embodiment of the forehead frame connector according to the present invention, and FIG. 2 shows the frame connected using the frame connector.

The frames A and B are a vertical frame and a horizontal frame, and a notched locking groove 2 is formed in the side part 1 of each frame. On the other hand, the frame connector C is a connector that connects the vertical frame A and the horizontal frame B,
The entirety of the frame connector base 3 is L-shaped, and its cross-sectional shape is L-shaped. At both ends of the back surface 4 of the frame connector base 3, engaging pieces 5 which are engaged with locking grooves 2 formed in the side parts 1 of the frames A and B, which also serve as removal pieces, project inward. It is set in.
At the tip of the engagement piece 5, which also serves as a release piece, there is provided a presser spring 6, which is a V-shaped double-legged leaf spring that connects the two pieces. A diagonally cut recess 7 is formed at the boundary between the engagement piece 5 and the frame connector base 3 so that the engagement piece 5 also serves as a flexible removal piece. Furthermore, rounded projections 9 are provided on the side surfaces of the back surface 4 and the side surface 8 of the frame connector base 3 to eliminate clearance between the frames A and B.

Then, using the frame connector C having such a configuration, insert one side and the other side into the guide grooves 10 of the vertical frame A and the horizontal frame B, respectively, and connect the frames to the locking grooves 2 formed in the frames A and B. The frames A and B are connected by engaging the locking claws 5 on the tool C side to assemble the frame. At the same time, the spring force of a V-shaped presser spring 6 connecting both engaging pieces 5 supports a back plate, such as a foam board (not shown), from the back side.

According to this frame connector C, the detachable piece is located far away from the locking groove 2 of the vertical frame A and the horizontal frame B with which the engaging piece 5 is engaged, that is, in the vicinity of the V-shaped presser spring 6. By operating the tip of the engaging piece 5 which also serves as the
can be removed from the locking groove 2.
The locking groove 2 does not come into contact with the sharp edges of the locking groove 2, and injuries caused by contact with the sharp edges of the locking groove 2 are eliminated.

In addition, since both engaging pieces 5 are integrally connected by a presser spring 6, both engaging pieces 5 are simultaneously removed from the locking groove 2 by the above-mentioned removal operation, and the forehead can be easily removed with a small amount of operation. I can do it.

Furthermore, when the frame connector C is attached,
Since the engagement piece 5 is always pressed against the locking groove 2 by the spring force of the presser spring 6 that integrally connects both the engagement pieces 5, the engagement piece 5 and the engagement piece 5 are locked together. The engagement with the groove 2 is ensured and there is no possibility of inadvertent disengagement even due to vibration or the like.

Furthermore, since the back plate of the forehead is held down by the action of the V-shaped presser spring 6, the back plate of the forehead is held securely and does not shift its position.

FIG. 3 shows another embodiment of the forehead frame connector according to the present invention, and FIG. 4 shows the frame connected using the frame connector.

This example is a frame connector in which push-out claws 11 are provided at the corners of the frame connector base 3 of the previous embodiment.

In this case, when replacing the calligraphy or drawing, push down the engagement piece 5 with the pad of your finger (thumb) to remove it from the locking groove 2, and at the same time push out the push-out claw 11 with the tip of your finger (thumb) to reverse the vertical frame. By pulling A or the horizontal frame B away from the frame connector C, the frames A and B can be quickly and easily removed.

[Effect of idea]

As described above, according to the present invention, the connected vertical frame and horizontal frame can be disassembled safely and easily, and the engaging piece does not come off inadvertently from the locking groove. It also attaches securely, so it won't come off. Moreover, the effect of being able to securely hold the back plate of the forehead can also be obtained.

[Brief explanation of drawings]

Fig. 1 is a perspective view of one embodiment of the present invention, Fig. 2 is a perspective view of the frame connected using the frame connector, Fig. 3 is a perspective view of another embodiment of the invention, 4
The figure is a perspective view of the frame connected using the frame connector, FIG. 5 is a perspective view of the frame connected using the conventional frame connector, and FIG. 6 is a perspective view of the frame connected using the conventional frame connector. It is an exploded perspective view of the example. 2...Latching groove, 3...Frame connector base, 4...Back surface part, 5...Engagement piece, 6...Pressure spring, A...Vertical frame, B...Horizontal frame, C...Frame Connector.

Claims (1)

[Scope of utility model registration request] One side and the other side of the frame connection base are inserted into the guide grooves of the vertical frame and the horizontal frame of the forehead, respectively, and the engagement grooves provided at both ends of the frame connection base are engaged with the locking grooves formed in the vertical frame and the horizontal frame. In a frame connecting tool for assembling a frame by connecting the vertical frame and the horizontal frame by engaging the respective pieces,
An engagement piece that also serves as a release piece is provided at both ends of the back surface of the frame connection base, and a V-shaped presser spring is provided between the two engagement pieces for integrally connecting the two pieces. Frame connector.