JPS6236440Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a frame assembly structure, and aims to improve the assembly strength of the frame and reduce costs.

In recent years, frames that can be disassembled and reassembled using screws and the like have been used in a variety of applications, such as storage boxes, show cases, and housings for electrical equipment. When assembling such a frame, conventionally, at the corner of the frame A as shown in FIG. 1, frame members B ₁ , B ₂ , B ₃ in three directions perpendicular to each other as shown in FIG. are connected by a corner material C to form a frame A. Corner material C is
Three fixing parts c ₁ , c ₂ , c ₃ having an L-shaped cross section and connected at right angles to each other are connected to the inner surface b 1 , respectively of the frame member B _{1 .
Holes} b 13 attached to b ₂ , b ₃ and drilled in step portions b ₁₁ , b ₁₂ , b ₂₁ , b ₂₂ , b ₃₁ , b ₃₂ provided in the longitudinal direction of the frame material B ₁ .
Screw the screws D, D... from b ₁₄ , b ₂₃ , b ₂₄ , b ₃₃ , b ₃₄ into the screw holes c ₁₁ , c ₁₂ , c ₂₁ , c ₂₂ , c ₃₁ , c ₃₂ of the fixed part c ₁ ... corner material C and frame material _B1 ... are connected. In addition, the stepped portions b ₁₂ of the frame members B ₁ and B ₃ on the arrow E side,
Since the holes b ₁₄ and b ₃₄ drilled in b ₃₂ and the screw holes c ₁₂ and c ₃₂ of the fixing parts c ₁ and c ₃ are not visible, the screws D... are also not shown. Frame A assembled in this way is made of frame material
In the recess formed by the step b ₁₁ of B ₁ ..., for example, in the recess formed by the step b ₁₁ , b ₂₁ , b ₄₁ , b ₅₁ of the frame members B ₁ , B ₂ , B ₄ , B ₅ , outer plate F with the same plate thickness as the height of the stepped part
are fixed with screws or the like, and the inside of the frame A is covered.

In the assembly structure of such a frame body, corner materials C made of cast iron have conventionally been used.
If the length l ₁ of the fixed part c ₁ is made longer, the cost will increase due to the mold frame, etc., so it has not been possible to make the length l ₁ sufficiently long. Therefore, corner material C and frame material
In order to obtain sufficient connection strength even if the bonding length of B ₁ is short, a screw hole c ₁₁ is provided in the fixing part c ₁ , and a screw D is inserted into this screw hole c ₁₁ . _1. The necessary connection strength was obtained by screwing together from the outside. However, if the screw hole c ₁₁ ... does not match the hole b ₁₁ ... of the frame material B ₁ ... into which the fixed part c ₁ ... is fitted, the screw D
It was not possible to screw them together, or even if they could be screwed together, the frame body A would be distorted, so high precision was required in the machining of the corner material C and the frame material B ₁ . Moreover, since the corner material C is a cast metal, the surface must be polished after demolding, which increases the cost.

The purpose of the present invention is to solve these conventional problems and improve the assembly strength of the frame and reduce costs. Therefore, the frame body is assembled from a frame member having a cross-sectional shape in which holding portions having a U-shaped cross section are disposed at right angles, and a fixing plate having fixing portions disposed at right angles. At the corner of the frame, the fixing part of the fixing plate is attached to the holding part of the frame members in three directions that are adjacent to each other, and the frame members are assembled in three directions at a 90 degree angle, and The frame members are connected by screwing the screws together and pressing the screw heads against the surface of the fixing part. In this way, the frame body is assembled by connecting the frame members assembled from three directions at each corner with the fixing plate.

According to this assembly structure, since the fixing plate, which is a plate material, is used to connect the frame members at the corners, the cost can be reduced compared to the conventional corner members made of cast iron. That is, it is easy to process, does not require a mold unlike casting, and does not require precision processing such as surface grinding or drilling of screw holes for connection.
In particular, since the screw holes are not fixed using screw holes as in the past, but the screw heads are pressed and fixed, there is no risk that the screw holes will not match and assembly will not be possible. Further, distortion of the frame can be eliminated by changing the length of attachment to the holding part. The fixing plate has an L-shape, and the length of the attachment part can be made sufficiently long, so there is no risk of insufficient strength like in the past, and the screw head can be pressed against the surface of the fixation part. sufficient strength can be obtained.

Next, embodiments of the present invention will be described in detail based on the drawings. FIG. 3 is an exploded perspective view of a corner of the frame according to the present invention, and FIG. 4 is a horizontal sectional view of the connecting portion in an assembled state. The frame body is assembled by a frame member 1 and a fixing plate 2. As shown in FIG. 4, the frame material 1 has a cross-sectional shape in which holding parts 11, 11 each having a U-shaped cross section are arranged with openings 11', 11' facing each other at an angle of 90 degrees. Furthermore, a stepped portion 1 is formed on the surface of the frame material 1.
2 and 12 are provided. Screw holes 1 are provided in the folded parts 13, 13 inside the frame material 1 of the holding parts 11, 11.
4 and 14 are open, and screws 3 are screwed together. The fixing plate 2 that connects the frame members 1 has two fixing parts 21, 21 disposed at right angles to each other, and the fixing parts 21 are attached to the holding part 11 and fixed with screws 3. The assembly of the frame material 1 and the fixing plate 2 will be explained with reference to FIG. At the corner of the frame, the frame members 1 are assembled from three directions, so the frame members 1a, 1b, and 1c are arranged clockwise from the upper right of the figure. Fixing plate 2 moves clockwise from the top.
Let them be a, 2b, and 2c. Fixing part 2 of fixing plate 2a...
The fixing portions 21b of the fixing plate 1a and the fixing plate 2b are attached to the holding portions 11a, 11a of the frame member 1a, and the screws 3a are tightened to hold the fixing portions 21a, 21b. Similarly, the holding parts 11b and 11b of the frame material 1b are provided with the fixing part 21b of the fixing plate 2b and the fixing part 2 of the fixing plate 2c.
1c is attached and fixed with screws 3b..., and the fixing parts 2 of the fixing plate 2c are attached to the holding parts 11c, 11c of the frame material 1c.
1c and the fixing part 21a of the fixing plate 2a are attached and fixed with screws 3c. At this time, only the tip of the screw 3a is pressed against the fixed part 21a, so
When distortion of the frame body occurs due to errors in processing dimensions of the frame members 1a, etc., the screws 3a are loosened to adjust the installation length _l2 of the fixing portion 21a to absorb the error and eliminate the distortion. Step portions 12a in one plane formed by connected frame members 1a of the thus assembled frame bodies.
By fixing the outer panel 4 in the recess formed by the frame, the inside of the frame is protected.

FIG. 5 is a sectional view of a frame member 10 showing another embodiment of the present invention. Contrary to the first embodiment, the frame member 10 has a cross-sectional shape in which holding parts 101, 101 each having a U-shaped cross section are arranged at an angle of 90 degrees, with openings 101', 101' facing outward. . As in the first embodiment, stepped portions 102, 102 are provided. Opposed inner flange parts 1 of the two holding parts 101, 101
03, 103 have screw holes 104, 10 for fixing.
4 is open. Assembly using this frame material 10 is as follows:
As in the first embodiment, the frame body can be assembled by attaching the fixing parts 21, 21 of the fixing plate 2 to the holding parts 101, 101, and screwing the screws 3 into the screw holes 104, 104. can.

FIG. 6 and FIG. 7 are diagrams showing different examples of the case where the rail is attached within the frame. FIG. 6 shows a rail mounting bracket 5 having a Z-shaped cross section.
It consists of a mounting part 51 fixed to the holding part 11 of the frame material 1, a hooking piece 52 and a rail supporting piece 53, both ends of which are bent in opposite directions. The mounting portion 51 and the rail support piece 53 have screw holes 54..., 55, respectively.
...is open. The mounting part 51 is fixed to the holding part 11 by screwing a screw into the screw hole 54, and the rail R is fixed with a screw through a screw hole 55 made in the rail support piece 53. FIG. 7 shows a rail mounting bracket 6 having a Y-shaped cross section, and is composed of a U-shaped mounting portion 61 and an L-shaped rail mounting piece 62. Mounting part 6
1 is a folded portion 1 of a holding portion 11 provided on a frame material 1;
The mounting piece 63 and the mounting piece 6 are spaced apart by the thickness of 3.
4 is provided. The mounting piece 64 is provided with a screw hole 65 for fixing. These mounting pieces 63 and mounting pieces 6
A rail mounting piece 62 is provided in parallel with 4.
The rail mounting piece 62 has a screw hole 66 for mounting the rail R thereon. To install the metal fittings 6,
This is accomplished by sandwiching the folded portion 13 of the frame member holding portion 11 between the mounting piece 63 and the mounting piece 64, and tightening the screw in the screw hole 65. Once the metal fittings 6 are fixed, the rail R is attached to the rail mounting piece 62 with screws using the screw holes 66. With this rail R, articles can be stored in sections without being stacked in the frame, and the articles can be easily put in and taken out as they are guided by the rail R.

In this way, the present invention uses a fixing plate, which is a plate material, to connect the frame members, and does not require precise processing, so it is possible to reduce costs. In addition, the length of the attachment part of the fixing plate to the frame material can be made sufficiently longer compared to conventional cast corner materials.
There is no need to worry about insufficient strength at the connection. moreover,
Unlike the conventional method, the fixing plate does not have screw holes for fixing, so there is no possibility of assembly being impossible due to mismatch between the holes of the frame material and the screw holes of the fixing plate, or of the frame being distorted after assembly. In other words, since the tip of the screw is fixed by pressing it against the fixing plate, even if the screw hole position is shifted, by shifting the fixing position of the fixing plate, errors during processing can be absorbed and distortion can be eliminated. can.

[Brief explanation of drawings]

Figures 1 and 2 are an overall perspective view showing the assembled structure of a conventional frame body, an exploded perspective view of the connecting part, and Figures 3 to 3.
Fig. 7 shows an embodiment of the present invention, Fig. 3 is an exploded perspective view of the connecting part, Fig. 4 is a horizontal cross-sectional view of the connecting part in an assembled state, and Fig. 5 is a cross-section of the frame material of another embodiment. 6 are a partial sectional view and a front view showing an example of rail attachment within the frame, and FIG. 7 is a partial sectional view and a front view showing another example of rail attachment. In the figure, 1 and 10 are frame materials, 2 is a fixed plate, and 3
11 is a screw, 11 is a holding portion, 14 is a screw hole, and 21 is a fixing portion.

Claims (1)

[Scope of utility model registration request] It consists of a frame material having a cross-sectional shape in which holding parts having a U-shaped cross section are arranged at right angles, and a fixing plate in which fixing parts to be attached and fixed to the holding parts are arranged at right angles, each at an angle of 90 degrees. Attach the fixing part of the fixing plate to two mutually adjacent holding parts of the frame material gathered at one point from three directions, tighten the screw threaded into the holding part from inside the frame material, and insert the screw tip onto the surface of the fixing part. An assembly structure of a frame body characterized by pressing and fixing.