JPH0143528Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Technical field of the invention The invention relates to a flexible clamp that connects and fixes adjacent pipe materials in a parallel or intersecting state, and in particular prevents rattling of the flexible clamp itself through a simple structure. Concerning what was possible.

(b) Conventional technology and problems Scaffolding used when constructing wireless towers, etc.
Pipe material of specified length (steel pipe or aluminum alloy pipe)
A large number of tubes are assembled three-dimensionally and connected and fixed to each other, and this connection and fixation is carried out using a flexible clamp in which a pair of clamps are rotatably attached to adjacent tube members. In addition to the scaffolding, a feeder rack for supporting cables, feeder lines, etc. connecting the transmitting/receiving equipment and the antenna on the tower is similarly constructed by combining pipe materials.

The conventional structure of the above-mentioned universal clamp is shown as a schematic front view in Figure 1A and a side view in Figure 1B. In the figure, clamp 1 is made by pressing a steel plate to approximately L length.
A fixed metal fitting 11 having a shape, a band-shaped movable metal fitting 12 with one side rotatably pivoted to one L-shaped end of the fixed metal fitting 11 by a connecting shaft 13, and this movable metal fitting 12 can be received inside the fixed metal fitting 11. A tightening screw 2 that traverses the tube 5 and is pivotally connected to the other end of the fixed fitting 11 by a connecting shaft 112, and a nut 3 that is tightened by engaging the other notch 121 of the movable fitting 12 with the tightening screw 2. It consists of

A pair of the clamps 1 are rotatably caulked and pivoted back to back by an eyelet-shaped shaft member 4 fitted into a hole 111 to form a flexible clamp.

A pair of tubes 5 are attached to each fixed metal fitting 1 by engaging the tightening screw 2 in the notch 121 of the movable metal fitting 12 and tightening the movable metal fitting 12 with the nut 3.
1 and a movable metal fitting 12. The parts of the fixture 11 that the spacer material 5 comes into contact with are four at both ends in the direction perpendicular to the page of FIG. It's a place. In this way, it is configured so that it does not come into contact with the head formed by caulking the shaft member 4. In such a contact form, the tube material 5 is held stably and firmly.

In other words, the head of the shaft member 4 is buried deeper than the abutting portion of the tube member 5 of the fixture 11.

The above-mentioned flexible clamp can accommodate the pair of tubes 5 in any position with their lengths being parallel or intersecting, and is therefore rotatable by the shaft member 4. For this purpose, a gap is provided between the clamps 1 for a suitable play. This is also true because it requires freedom of movement while withstanding environmental conditions such as the atmosphere and rainwater. Furthermore, because the entire structure is electrogalvanized, hot-dip galvanized, etc. for rust prevention, the gap is quite large.

In the construction of scaffolding, feeder racks, etc. using the flexible clamp shown in Fig. 1 above, there is little wobbling due to the gap in the shaft attachment part at the connecting and fixing part of the pipe material 5, but the overall assembly is quite large and the upper part It is unavoidable that the wires wobble, and the position of the feeder wires, etc. may change due to expansion, contraction, bending, etc., resulting in inconvenience. This kind of thing is affected by some external force, such as input, wind, earthquake, etc.

(c) Purpose of the invention In view of the above-mentioned conventional problems, the object of the invention is to provide a flexible clamp that is used for connecting and fixing pipe materials and eliminates undesirable movement caused by the gap in the shaft attachment part of the clamp. .

(d) Structure of the invention The above purpose is the gist of the structure of the invention. Almost L
A pipe is received inside a fixed metal fitting having a shape, and a movable metal fitting, one end of which is rotatably pivoted to one L-shaped end of the fixed metal fitting, is moved across the tube, and a clamping member is pivoted to the other end of the fixed metal fitting. By tightening the other of the movable fittings with the attached screw, a pair of clamps for tightening and fixing the pipe material between the fixed fitting and the movable fitting are rotatably attached to the shaft member back to back, and the tube material of the fixed fitting is In a flexible clamp in which the head is buried below the abutting part, a spacer is provided which protrudes beyond the part where the tube of the fixing fitting should come into contact and comes into contact with the tube and presses the head of the shaft member. This is achieved with a universal clamp that features a

(e) Embodiments of the invention Examples of the flexible clamp according to the invention will be described in detail below with reference to the drawings.

FIG. 2 shows an embodiment of the flexible clamp of the present invention, in which figure a is a schematic front view and figure b is a side view. Like FIG. 1, FIG. 2 shows a pair of clamps 1, 1 and a shaft member 4, and the feature of the present invention is that a spacer 6 is interposed between the head of the shaft member 4 and the tube member 5. has. Therefore, the parts other than the spacer 6 are given the same reference numerals as in FIG. 1, and the explanation of these parts will be omitted here.

A circular spacer 6 made of a steel plate or the like is subjected to an appropriate anti-rust treatment and is bonded to the head of the shaft member 4 with an adhesive. In this state, the tube material 5 is tightened and fixed between the fixed metal fitting 11 and the movable metal fitting 12 in the same manner as in the conventional method.

Looking at the L-shaped rear side of the fixture 11, the spacer 6 pressed against the head of the shaft member 4 protrudes beyond the surfaces on which the pipes 5 at both ends of the fixture 11 should come into contact, and is in direct contact with the pipe 5. . That is, the thickness of the spacer 6 is determined so as to have such a relationship.

On the other hand, regarding the L-shaped jaw side of the fixture 11, the tube material 5 is in contact with contact surfaces raised at both ends of the fixture 11, as in the conventional case.

As described above, by pressing the spacer 6, the tube member 5 presses the head of the shaft member 4, and the head presses the peripheral surface of the hole 111 of the fixing fitting 11. In other words, the head of the shaft member 4 is attached to the fixing metal fitting 11.
As a result, the head is sandwiched between the fixing metal fitting 11 and the shaft member 4, and the flexible gap creates pressure contact. It becomes directionless.

In this way, when the tube member 5 is fixed, both clamps are prevented from moving freely and are connected via the shaft member 4. Of course, when the nut 3 is loosened, the shaft member 4 can move freely as before.

As mentioned above, it is preferable to bond the spacer 6 in advance because the work becomes easier by integrating it, but it is also possible to attach the spacer by magnetizing it like a permanent magnet. 3
As shown in figure a, an adhesive layer is provided on the adhesive surface, or as shown in figure b, a ferrite magnet 8 that can be inserted into the through hole (not shown) of the shaft member 4 is attached to attract both spacers. It is also possible to have it retained.

As detailed above, according to the flexible clamp of the present invention, by simply adding a spacer to the conventional flexible clamp, pipe materials can be joined and fixed without rattling, so work can be performed safely and The reliability of the construction body is improved.

[Brief explanation of the drawing]

Figure 1 shows a conventional universal clamp, Figure A is a schematic front view, Figure B is a side view, Figure 2 is an embodiment of the flexible clamp of the present invention, Figure A is a schematic front view, Figure B is a side view. Figures 3 and 3 show examples of spacer bonding means; Figure a uses adhesive tape, and Figure b uses magnets. In the figure, 1 is a clamp, 2 is a tightening screw, 3
is a nut, 4 is a shaft member, 5 is a tube material, 6 is a spacer, 7 is an adhesive tape, 8 is a ferrite magnet, 11
12 is a fixed metal fitting, 12 is a movable metal fitting, 13 and 112 are connection shafts, 111 is a hole, and 121 is a notch, respectively.

Claims (1)

[Scope of utility model registration request] A tube is received inside a fixing metal fitting that is approximately L-shaped, and a movable metal fitting, one end of which is rotatably pivoted to one end of the L-shape, is moved across the tube and is pivoted to the other end of the fixing metal fitting. A pair of clamps are rotatably attached to the shaft member back to back, and clamp the pipe material between the fixed fitting and the movable fitting by tightening the other of the movable fittings with a tightening screw. In the flexible clamp in which the head is buried below the pipe contacting part, a spacer is provided which protrudes beyond the part of the fixing fitting where the pipe should come into contact, contacts the pipe, and presses the head of the shaft member. A flexible clamp characterized by being interposed.