JPH0453403Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention is intended to achieve the purpose of temporarily fixing building frame members when assembling temporary pipe structures, temporary scaffolding frames, etc. in various construction works. This relates to a fastener.

(Prior art) Conventional fasteners of this kind are, for example,
As described in Japanese Utility Model Publication No. 25144 and Japanese Utility Model Publication No. 57-60593, the projecting/retracting locking piece is attached to the tube body so as to be swingably supported via a pivot.

(Problem to be solved by the invention) With the conventional fasteners as described above, if the entire part is plated while it is fixed to the building frame member, the pivoting part will be joined with plating, and the protruding and retractable parts will be attached. This inevitably leads to a situation where the stopper cannot swing. Therefore, in this case, it is customary to attach the retractable locking piece after the plating process.

However, even in this case, the pivot insertion hole is filled in due to the plating process, so when attaching the protruding and retractable locking piece to the tube body, the pivot must be hammered into the insertion hole with a hammer, etc. However, such driving-in work is extremely complicated and difficult because the pipe of the stopper has already been fixed to the building frame member.

Furthermore, assuming that the above-mentioned axis is not used,
As stated in Utility Model Publication No. 50-28600,
There is also a structure in which an enlarged portion is provided at the base end of the protruding/retractable locking piece, and the enlarged portion is held swingably.
However, with such a fastener, when attaching the protruding and retractable locking piece to the pipe body that is fixed to the building frame member, a caulking part must be formed on site to hold the enlarged part. Therefore, this work was more complicated and difficult to perform than the above-mentioned shaft driving work.

The present invention achieves swingable attachment of the retractable locking piece to the tube body without using a pivot, and at the same time, the installation of the retractable locking piece to the tube body can be done with a single touch without using any tools. The present invention is characterized in that it is constructed so that the above-mentioned conventional problems can be solved.

(Means for Solving the Problems) The present invention provides a groove for storing and retracting the retractable locking piece 3 described below on the lower surface of the pipe body 1 whose base end is appropriately fixed to the building frame member A. In addition to opening the hole 2, a pivot engagement part 4 is formed inside the tube body 1 and near the tip of the slot 2, and is further swingable with respect to the pivot engagement part 4. A spring insertion hole 3b is located near the upper edge of the distal end of the protruding/retracting locking piece 3, which has a pivot hook-shaped portion 3a formed at the base end for loosely engaging the spring.
At the same time, a half-folding part 5a and a half-folding part 5a are formed.
Horizontal rod portions 5b, 5b that are connected to each other and are brought into pressure contact with the lower inner wall of the tube body 1, and the horizontal rod portions 5b,
The bifurcated spring 5 is made up of diagonal folded rod portions 5c, 5c which rise obliquely from the end of the tube body 5b and are folded back so as to expand laterally to press against the inner wall of the upper half portion of the tube body 1. The protruding/retracting locking piece 3 is attached by inserting the folded half part 5a into the insertion hole 3b thereof, and the protruding/retractable locking piece 3 and the spring 5 are housed in the tube body 1 through the slot 2 of the tube body 1.
This invention relates to a fastener for a building frame member, characterized in that it is configured to be inserted based on insertion.

(Function) The present invention provides, for example, a building frame member A such as a scaffolding frame.
A usage pattern is adopted in which only the pipe body 1 is fixed and the entire structure including the building frame member A is plated. This is exactly the same as a conventional fastener.

When in use, the protruding/retracting locking piece 3 with the bifurcated spring 5 attached is inserted from the slot 2 of the tubular body 1 by inserting the folded half part 5a into the insertion hole 3b. This is done by hooking the pivot hook-shaped part 3a of the protruding/retracting locking piece 3 onto the pivot engaging part 4, and then By pushing the spring 5 into the tubular body 1, the protruding/retracting locking piece 3 and the spring 5 can be set in one-touch manner to the state shown in FIG.

In this state, the lower edge of the protruding and retractable locking piece 3 is protruded from the slot 2 in a freely protruding and retractable manner based on the repulsive force of the spring 5, and at the same time, the oblique folded rod portion of the spring 5 A good stable state is maintained based on the bilaterally symmetrical pressure contact with the inner wall near the upper half of the tubular body 1 by the members 5c and 5c.

Therefore, in this state, the fastener of the present invention functions in exactly the same way as a conventional fastener, for example, as a fastener for installing a brace on a scaffold frame, etc. be.

(Example) An example of the configuration of the present invention shown in the drawings will be described in detail as follows.

In the figure, A is a building frame member, 1 is a tube whose base end is fixed to the building frame member A, and on the lower surface thereof, a retractable locking piece 3 described below is provided for storage and retraction. Slot hole 2 has been opened. 1a is tube body 1
This is a hole for discharging the plating liquid during manufacturing, which is drilled on the lower surface near the proximal end of the plate.

Reference numeral 3 denotes a protruding/retractable locking piece having a hook-shaped portion 3a for pivoting at the base end and a spring insertion hole 3b formed near the upper edge of the tip. It is designed to be housed inside with the lower edge portion protruding freely from the slot 2.

Reference numeral 4 denotes a pivot engagement portion formed inside the tube body 1 and near the tip of the slot 2, into which the hook-shaped portion 3a of the above-mentioned projecting/retracting locking piece 3 is loosely engaged. In particular, it is for supporting the protruding/retracting locking piece 3 in a swingable manner. In the illustrated embodiment, the pivot engagement portion 4 is formed by bending a portion of the cut end for opening the slot 2 inward. Other than this, for example, the structure may be such that pins are installed and fixed as appropriate.

Reference numeral 5 denotes a bifurcated spring for stabilizing the protruding/retracting locking piece 3 within the tube body 1 and allowing it to freely move in and out of the slot 2; 3b portion, and a pipe body 1 connected to the folded half portion 5a.
A horizontal rod portion 5b for pressure contact with the lower inner wall of the
5b, and oblique folded rod portions 5c, 5c which rise obliquely from the ends of the horizontal rod portions 5b, 5b, and are folded back so as to expand laterally to press against the inner wall of the upper half of the tube body 1. It consists of

The above-described protruding/retracting locking piece 3 and spring 5 are inserted into the tubular body 1 through the slot 2 of the tubular body 1.

(Effect of the invention) The present invention opens a groove 2 on the lower surface of the pipe body 1 whose base end is appropriately fixed to the building frame member A, and which serves as a storage and removable site for the retractable locking piece 3 described below. At the same time, a pivot engagement part 4 is formed inside the tube body 1 and near the tip of the slot 2, and is loosely engaged with the pivot engagement part 4 so as to be swingable. According to the present invention, the projecting/retracting locking piece 3 formed with the pivoting hook-shaped portion 3a formed at the base end is housed in the tube body 1. According to the present invention, the tube body 1 The pivoting of the protruding/retracting locking piece 3 relative to the retractable locking piece 3 can be achieved without using a pivot. Therefore, in conventional products using a pivot, the insertion hole is filled with the pivot due to the plating process, so when attaching the pivot to the tube body of the protruding/retractable locking piece, it is necessary to hammer the pivot against the insertion hole. However, since the pipe body of the fastener is already fixed to the building frame member, this type of work is extremely complicated and difficult to do. Ta. Such problems are completely solved by the present invention.

Further, in the present invention, the protruding/retracting locking piece 3 with the bifurcated spring 5 attached thereto by inserting the folded half part 5a into the insertion hole 3b is inserted from the groove hole 2 of the tube body 1, and , the pivot hook-shaped portion 3a of the protruding/retracting locking piece 3 is hooked onto the pivot engaging portion 4, and then the spring 5 is pushed into the tube body 1, and the protruding/retractable locking piece 3 and Since the spring 5 is configured to be able to be housed and set within the tube body 1,
These installations can be done in one touch and without using any tools. Therefore, the work is extremely simple and expedient compared to conventional methods that require tools such as hammers or caulking tools.

Furthermore, the present invention has a folding half part 5a, horizontal rod parts 5b, 5b connected to the folding half part 5a and pressed against the inner wall of the lower surface of the tube body 1, and horizontal rod parts 5b, 5b.
The bifurcated spring 5 is made up of diagonal folded rod portions 5c, 5c which stand up obliquely from the end of the tube body 1 and are folded back so as to expand laterally to press against the inner wall of the upper half of the tube body 1. Since it is configured to be attached to the protruding/retracting locking piece 3 by inserting the folded half part 5a into the insertion hole 3b thereof, the horizontal rod parts 5b, 5b of the spring 5 are pressed against the inner wall of the lower surface of the tube body 1. As a result, not only a good repulsive force is applied to the protruding/retracting locking piece 3 in the protruding direction, but also the tube body 1 due to the diagonal folded rod parts 5c, 5c is
Based on the bilaterally symmetrical pressure contact with the inner wall near the upper half, the projecting/retracting locking piece 3 is kept in an extremely stable state. That is, the oblique folded rod portions 5c, 5c are the horizontal rod portions 5b, 5.
Since it is folded back in such a way that it rises obliquely from the end of tube b and expands laterally, the above-mentioned tension caused by this is unidirectional, such as upward or in the left-right direction of the tube body 1. It acts in an oblique direction extending in both directions, and therefore, the stability imparted to the protruding/retracting locking piece 3 is significantly improved.

[Brief explanation of the drawing]

The figure shows an embodiment of the present invention.
The figure is a vertical side view of the present invention fixed to the building frame member, Figure 2 is a side view of the present invention, Figure 3 is a sectional view taken along line X-X in Figure 1, and Figure 4 is FIG. 5 is a front view of the spring 5 according to the present invention, and FIG. 6 is a side view of the spring 5 according to the present invention. A...Building frame member, 1...Pipe body, 1a...Drainage hole, 2...Groove hole, 3...Protruding locking piece, 3a...
Pivot hook-shaped part, 3b...Insertion hole, 4...Pivot engagement part, 5...Spring, 5a...Half portion, 5b
...Horizontal rod part, 5c... Oblique folded rod part.

Claims (1)

[Scope of utility model registration request] A groove 2 for storing and retracting the protruding/retracting locking piece 3 described below is opened on the lower surface of the tube body 1 whose base end is appropriately fixed to the frame member A, and a slot 2 is provided inside the tube body 1 for storing and retracting the protruding/retracting locking piece 3 as described below. A pivot engagement portion 4 is formed in a portion near the tip of the slot 2, and a pivot hook-shaped portion is provided to be loosely engaged with the pivot engagement portion 4 in a swingable manner. A spring insertion hole 3b is formed near the upper edge of the distal end of the protruding/retractable locking piece 3 formed at the base end, and a spring insertion hole 3b is connected to the folded half part 5a and is connected to the folded half part 5a and is formed on the lower inner wall of the tubular body 1. Horizontal rod portions 5b, 5b are pressed against each other, and the horizontal rod portions 5b, 5b are bent obliquely from the ends thereof and expanded laterally to be pressed against the inner wall of the upper half of the tube body 1. A bifurcated spring 5 consisting of diagonal folded rod parts 5c, 5c is attached to the protruding/retracting locking piece 3 by inserting the folded half part 5a into the insertion hole 3b of the protruding/retracting locking piece 3. A fastener for a building frame member, characterized in that the retaining piece 3 and the spring 5 are inserted into the slot 2 of the tubular body 1.