JPH03807Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial field of application This invention relates to a corner connection or joint structure for a plate-enclosed structure of the type that includes a frame covered with plates, doors, etc. It is.

PRIOR ART A number of construction methods are known, and although they are used initially and primarily for electrical connection or metering cabinets, they are also used for electronic, pneumatic and hydraulic control equipment. It can also be used for many other purposes, such as cabinets for machines that have to be boarded up or for whatever reason.

A common feature with known construction methods for plated structures is that they are always accompanied by difficulties in fitting and tightening the screws or bolts used to connect the parts. Fitting can be very time consuming, and the difficulty in fitting often results in the assembler not inserting some of the bolts or screws. This is because it is often impossible to see whether all bolts and screws are in place after assembly, especially after fastening panel boards, doors, etc. as a result,
The electrical conductivity between the individual parts may be insufficient, which is made even worse by the difficulty of tightening, so that the finished framework does not meet the normal mechanical strength requirements. Frequently, the electrical continuity requirements imposed by the authorities may not be met.

The problem that the invention seeks to solve The aim of the invention is to create a construction of the above-mentioned type without encountering the above-mentioned disadvantages and, moreover, being characterized by more technical advantages with respect to manufacturing and assembly. The present invention seeks to provide a corner connection or joint structure for the method.

Means and operation for solving the problem This object is achieved by designing a corner connection or joint structure as disclosed in the characterizing part of claim 1 of the patent claim.
In this construction, all supporting screws are inserted into the corner connections or joints at an acute angle to the length of the frame rod, and therefore all screws can be tightened using normal tools. I can do it. Additionally, it is easy to check whether all screws are in place and tightened.

A particularly advantageous embodiment of the corner connection or joint structure is disclosed in the characterizing part of patent claim 2. Such a design provides a particularly easy and precise corner connection structure.
This is because the frame bar is simply placed on the plug member of the corner block, said plug member having somewhat beveled or slightly beveled sides for this purpose. The screw is then introduced into the frame rod and tightened.

By designing any connection or joint structure as disclosed in the characteristic part of claim 3 of the utility model registration, two corner blocks can be connected side by side, and thus: The plated structures can be provided without being limited as to their dimensions.

By designing any connection or joint structure as disclosed in the characterizing part of claim 4 of the utility model registration, a connection or joint that is always robust and strong is obtained.

Corner blocks with corner connections or joint structures are
Preferably, it is designed as disclosed in the characteristic part of claim 5 of the utility model registration. This makes the corner block particularly suitable for finishing with automatic machine tools.

This invention will be further explained below with reference to the drawings.

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the drawings, reference number 1 is a corner block according to the invention. This corner block consists of a cuboidal part with three flat open sides 2, each of which may be provided with a screw hole 3. However, the drawings show that one of the open sides 2
Only one screw hole 3 in the is shown.

On three adjacent sides of the corner block 1, plug members 5 are arranged, which are preferably cast in one piece with the cubic part. The plug member 5
together with the cubic part form a circumferentially extending shoulder 6 for a frame bar 8, which can be held over the plug member 5 in abutment against the shoulder 6. . The plug member 5 has an inclined side surface 4 in which a screw hole 7 is formed. Each plug member has two threaded holes 7. A screw or bolt 9 can be screwed into the threaded hole 7 and thereby the frame bar 8 can be secured.

The frame bar 8 can be made of bent sheet material, for example, with screw holes 12 or similar fixing holes for fixing things such as panel boards, doors, this frame bar 8 having: A stamping or pocket 11 is formed in which a screw 9 engages the frame bar and secures it to the corner block.
The center line 10 of the screw 9 is at an acute angle with respect to the length of the frame bar, and this center line is approximately perpendicular to the side surface 4 of the corner block.

The corner block 1 is preferably manufactured by casting or hot pressing from a suitable metal alloy, such as aluminum or a zinc alloy. After casting, this corner block is finished by machining and at the same time the threaded holes are formed.

The corner block is constructed with hollow spaces in order to save material and reduce its weight.
Please refer to Figure 2. This hollow space is made according to normal casting principles so that all screw holes are through holes and no manufacturing problems arise due to removal of chips and the like.
Once the production is finished, the corner block will e.g.
It can also be surface treated with paint or other surface treatments.

Effects of the invention As described above, according to this invention, all the screws can be inserted into any corner connector or joint at an acute angle with respect to the length direction of the frame rod. can be used to tighten all screws. Additionally, it is easy to check whether all screws are in place and tightened.

[Brief explanation of drawings]

FIG. 1 is an exploded view of the completed corner connection or joint structure. FIG. 2 shows the corner block viewed from the opposite side with respect to FIG. In the figure, 1 is a corner block, 2 is an open side, 3 is a screw hole, 5 is a plug member, 7 is a screw hole,
8 is a frame rod, and 9 is a screw.

Claims (1)

[Claims for Utility Model Registration] (1) A corner connection or joint structure for a plated structure of the type that includes a frame covered with plates, doors or the like, where the frame is assembled by frame bars 8 connected by corner blocks 1, said corner blocks being formed with plug members 5 which fit within the end openings of the frame bars;
The corner connection or joint structure is characterized in that the frame bar 8 is fastened to the corner block by a screw 9 extending at an acute angle with respect to the length direction of the frame bar. (2) The corner block 1 has the basic shape of a cube forming on three sides plug members 5 adapted to engage in the end openings of the frame bar 8, said plug members , which is surrounded by a wholly or partially extending shoulder 6 which is adapted to abut against the end face of the frame bar. Interlocking or joint construction. (3) Utility model registration claim 1 or claim 3, characterized in that at least one of the open side parts 2 of the corner block is formed with a screw hole 3 at right angles to the side part. Corner connection or joint structure described in Section 2. (4) Each plug member 5 is formed with two screw holes 7 for receiving screws 9 for fixing the frame rod 8. Corner connection or joint structure described in any of the paragraphs. (5) Corner blocks are cast from alloy and then finished by machining and, if desired,
The corner connection or joint structure according to any one of claims 1 to 4, which is characterized in that it is finally surface-treated.