JPH017785Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a fixed support device for scaffolding support members, which maintains a constant distance between the assembled scaffold and the structure when constructing ordinary homes, buildings, and other structures. This is to prevent the scaffolding itself from collapsing or being dismantled, and in order to maintain the scaffolding support members at a constant distance from the wall of the structure, the length adjustment can be done easily and reliably, and it is also possible to use tightening metal fittings. The present invention relates to an improvement in a fixing support device that allows fine adjustment and fixation of the extended length of an adjusting bolt by changing the tightening force applied to the adjusting bolt.

Conventionally, in fixed support devices that maintain a constant distance between a scaffold and a structure, the distance is adjusted by changing the threaded length of a screw means such as a turnbuckle. However, it is very troublesome to change the spacing significantly, and this is especially noticeable when the spacing between the structures is set in various ways, such as in one-sided scaffolding.
Sufficient consideration has not been given to reliably eliminate the instability caused by the single-legged support member and to provide strong support.

Furthermore, according to Japanese Utility Model Application Publication No. 53-118319, a clamp fitting to be fastened to an appropriate position of a scaffolding support member is placed in a cylindrical support cylinder fixed at one end, and has a rough anti-slip surface on the outer periphery. A length-adjusting rod with a shape formed therein is rotatably and movably inserted, and a fastening fitting that is fixed to the wall surface of the structure can be detached and swingably attached to the end of the length-adjusting rod that comes out from the support cylinder. A fixing and supporting device for a scaffolding support member is provided, in which a fixing fitting having a stopper part that is connected and pressed against the outer circumferential surface of a length adjusting rod extending out from a support tube is fixed to the other end of the support tube. .

However, even with this fixing support device, the fixing metal fitting has a fixing plate with a generally groove-shaped cross section, which has a through hole drilled in the side wall through which the length adjustment rod passes, and is fixed to the other end of the support cylinder. The length adjusting rod outer periphery can be adjusted by passing the fixing bolt connected to the stopper piece inside the plate through the straddle piece that straddles the fixing plate opening, and screwing it with the nut of the straddle piece. Since the pressure stopper is directly pressed against the surface, it is not possible to securely fix the length adjustment rod in the proper position.

In other words, even if the nut of the straddle piece is tightened considerably and the pressure stop piece is pressed into contact with the length adjustment rod that has a rough anti-slip surface formed on its outer periphery, it will not be possible to completely fix it with that force alone. There was a drawback that the length adjustment rod would slide horizontally. The fixing support device for scaffolding support members is intended to prevent the scaffolding itself from collapsing or being dismantled by maintaining a constant distance between the assembled scaffolding installed during the construction of the structure and the structure. Therefore, it is extremely important to securely fix the length adjustment rod, and improvements have been desired to prevent accidents.

Therefore, this invention was devised to eliminate the above-mentioned drawbacks, to quickly adjust the support interval of scaffolding support members, and to maintain a particularly strong, stable, and reliable support state. The gist of this is that a clamp fitting for attaching to a scaffold support member is attached to one end of a cylindrical support tube, and an adjustment bolt of an appropriate length is inserted loosely into the support tube without being removed. It is rotatably and movably loaded and made to come out from the other end of the support tube, and a fitting for fixing to the wall of the structure is pivotally fixed to the end of the adjustment bolt that comes out, and the adjustment bolt is attached to the other end of the support tube. A fixing plate with a generally groove-shaped cross section is fixed by opening through holes in both side walls, and an adjustment bolt is loosely passed through the fixing plate, and a part of the plate is inserted between the screw threads of the adjustment bolt. In order to fit and fix the adjustment bolt, a tightening fitting is provided which is formed in a spiral shape and has a built-in pressure regulating body whose length in the axial direction is approximately the same as the width of the fixing plate groove, and furthermore, this fitting is provided. The fixing bolt connected to the fastening fitting is passed through the straddle piece that straddles the fixed plate opening, and the screw is screwed with a nut on the straddle piece so that it can move forward and backward, thereby adjusting the pressure regulating body with the adjustment bolt. The reason lies in the fact that it is formed so that it can be freely tightened.

An embodiment of this invention will be described below based on the drawings.

In the figure, P indicates a scaffolding support member, and W indicates a wall surface W of the structure. It is combined with an adjustment bolt 4 fixed to W so that the entire length can be adjusted by expansion and contraction.

The support tube 2 is formed in a cylindrical shape, and one end thereof has a
A clamp fitting 1 is fixedly attached to a suitable position of a scaffolding support member P. This clamp fitting 1
is a screw type, and the scaffolding support member P
By tightening the pair of clamping pieces 5 that sandwich each other with bolts 6 and nuts 7, it is fastened and fixed to the scaffolding support member P.

The adjustment bolt 4 is inserted into the support cylinder 2 so as to be freely rotatable and movable, and the end of the adjustment bolt 4 that comes out from the support cylinder 2 is fixed to the wall surface W of the structure. A fastening fitting 3 is pivotally fixed so as to be swingable. In addition, by rolling the end of the adjustment bolt 4 located inside the support tube 2, it is possible to prevent it from coming off from inside the support tube 2.

The fastening fitting 3 has a nut 11 fixed in a substantially bowl-shaped fastening plate 10 having a fastening hole 9 through which a fastening device 8 such as a nail is passed, and is fixed to the end of the adjustment bolt 4. A fixing bolt 15 with a nut 14, which is swingably supported via a pin 13, is screwed onto the nut 11 in the connecting portion 12, which has a substantially groove-shaped cross section. And this is used as fastening plate 1
0 to the wall surface W using the fastening tool 8, the nut 14 is fixed to the nut 11 fixed inside the fastening plate 10.
All you have to do is screw in the fixing bolt 15 that comes with it. Therefore, the wall surface W, the fastening fitting 3, and the adjustment bolt 4 are firmly connected to each other, and the fastening bolt 15 is swingable relative to the adjustment bolt 4, and the adjustment bolt 4 itself is rotatable. Coupled with the fact that
This helps in forcing the direction of support and fixation. Not only that, after screwing the fastening bolt 15 with the nut 14 into the nut 11 of the fastening plate 10,
4 to the outer surface of the fastening plate 10, the fastening plate 10 becomes a double-nut type fastening state, eliminating the risk of easily separating or coming off, and since the fastening plate 10 is approximately bowl-shaped, it is easy to dismantle the scaffolding support member P. Sometimes it does not get in the way even when painted directly onto the wall surface W of a structure.

On the other hand, at the other end of the support tube 2, that is, at the open end of the support tube 2 from which the adjustment bolt 4 is removed, a pressure regulating body 16 is provided.
A fixing plate 18 having a built-in cylindrical fastening fitting 17 is fixedly installed.

This fixing plate 18 has a through hole 19 for the adjustment bolt 4.
has a substantially groove-shaped cross section that is opened in both side walls 20, and one side wall 20 is formed on the open end surface of the support tube 2.
The fixing plate 18 has an adjustment bolt 4 as shown in the figure.
is formed in a spiral shape so that it is loosely penetrated and a part of itself fits between the threads of the adjustment bolt 4 to fix the adjustment bolt 4, and its length in the axial direction is approximately equal to the groove width of the fixing plate 18. A fastening metal fitting 17 having a built-in pressure regulating body 16 having the same length is provided, and a fixing bolt 21 connected to the tightening metal fitting 17 is connected to a straddle member having a substantially groove-shaped cross section that straddles the opening of the fixing plate 18. Penetrate the seat piece 22,
It is screwed to the straddle piece 22 with a nut 24 located through a flat washer 23 so that it can move forward and backward. Therefore, by screwing in this nut 24, the tightening fitting 17 is pulled toward the straddle piece 22, and the pressure regulating body 16 is accordingly pulled into the nut 14.
It will gradually dig in between the threads on the outer circumferential surface. In this case, at the beginning of screwing, the pressure regulating body 16
Since the adjustment bolt 4 is not deeply wedged between the threads of the adjustment bolt 4, if the adjustment bolt 4 or the support cylinder 2 is rotated in this state, the entire length can be adjusted while maintaining the fixed state of the adjustment bolt 4 to the support cylinder 2. Fine adjustments are possible. Of course, by further screwing, a part of the pressure regulating body 16 completely fits between the threads, preventing the adjustment bolt 4 itself from rotating and moving, and the adjustment bolt 4 is firmly fixed to the support cylinder 2. . If the helical spacing of the pressure regulating body 16 is formed so as not to match the pitch of the adjustment bolt 4, a portion of the pressure regulating body 16 will be forcibly fitted between the threads of the adjustment bolt 4. , the fixing state of the adjustment bolt 4 becomes more stable.

In addition, in FIG. 3, the fastening fitting 17 is formed to have a substantially rectangular cross section, but as shown in FIG. If this is done, the effect of tightening the pressure regulating body 16 can be enhanced.

According to this invention constructed as described above, the clamp fitting 1 for attachment to the scaffolding support member P is attached to one end of the cylindrical support tube 2, and an adjustment bolt of an appropriate length is installed inside the support tube 2. 4 is movably inserted and made to come out from the other end of the support cylinder 2, and the fitting 3 for fixing to the wall surface W of the structure is pivotally fixed to the end of the adjustment bolt 4 that comes out, so that the adjustment bolt 4 If it is fixed by adjusting the expansion and contraction as appropriate, the scaffolding support member P can be set at a constant distance from the wall surface W, and
It is possible to prevent the scaffolding support member P from collapsing.

In this case, since the fastening fitting 3 is swingably supported by the adjustment bolt 4, even if the scaffolding support member P gradually descends due to various loads, the scaffolding will naturally Since the support support member P is corrected in the supporting and fixing direction, a situation in which the fastening metal fitting 3 falls off the wall surface W does not occur, and therefore there is no need to intentionally change the mounting position of the clamping metal fitting 1. .

Further, while the adjustment bolt 4 is rotatably inserted into the support tube 2 in a loose fit, a through hole 19 for the adjustment bolt 4 is inserted at the other end of the support tube 2 facing the clamp fitting 1.
A fixed plate 1 having a substantially groove-shaped cross section is bored in both side walls 20.
8 is fixedly installed, and an adjustment bolt 4 is installed in the fixed plate 18.
is loosely penetrated and a part of itself is formed in a spiral shape to fit between the threads of the adjustment bolt 4 to fix the adjustment bolt 4, and its length in the axial direction is approximately the same as the width of the groove of the fixing plate 18. A fastening fitting 17 having a built-in pressure regulating body 16 having a length is provided, and a fixing bolt 21 connected to this tightening fitting 17 is passed through a straddle piece 22 that straddles the opening of the fixing plate 18. straddle piece 22
By screwing the upper nut 24 so that it can move forward and backward, the pressure regulating body 16 can be tightened to the adjustment bolt 21, thereby producing the following excellent effects.

That is, when the nut 24 is in a relaxed state, the adjustment bolt 4 can of course be adjusted telescopically.
By slightly screwing in the nut 24, the tightening fitting 17 is pulled toward the straddle piece 22, and as a result, the pressure regulating body 16 is positioned above the threads of the adjustment bolt 4. Alternatively, by rotating the support tube 2, the overall length can be finely adjusted while the adjustment bolt 4 is kept fixed to the support tube 2. In other words, when the outer circumferential surface of the adjustment bolt 4 is not threaded as in the conventional case, even if the length of the adjustment bolt 4 is determined according to the set position of the scaffolding support member P, when screwing the nut 24 There was a risk that the adjustment bolt 4 would slide out of its designated position, making it impossible to fix it as desired.This invention overcomes these drawbacks by having the structure described above, and eliminates any inconvenience. Otherwise, it has the advantage that its entire length can be adjusted easily and accurately.

By further screwing in the nut 24, a part of the spirally formed pressure regulating body 16 bites between the threads of the adjustment bolt 4 and is completely fitted, so that the adjustment bolt 4 itself cannot rotate. completely fixed to the pressure regulating body 16 within the support tube 2,
Moreover, since the length of the pressure regulating body 16 in the axial direction is approximately the same as the groove width of the fixed plate 18, the fixed plate 1
8, the pressure regulating body 16 also cannot move in the horizontal direction,
The adjustment bolt 4 is securely fixed to the support cylinder 2 without sliding. In addition, since the end of the adjustment bolt 4 located inside the support tube 2 is rolled to prevent it from coming off, the adjustment bolt 4 may come off during use and the scaffolding support member P may collapse. There is no danger of this happening.

Note that if the clamp fitting 1 is rotatably attached to the support tube 2 or the fitting 3 for fixing to the wall surface W is rotatably attached to the adjustment bolt 4, the nut 24 once tightened can be slightly loosened and supported. By appropriately rotating the cylinder 2 or adjustment bolt 4, the overall length of the scaffolding support member P can be adjusted while maintaining the setting state of the scaffolding support member P robustly, and the position of the scaffolding support member P can be quickly and easily changed during use. It's easy to deal with.

As explained above, this invention can prevent the scaffold itself from collapsing or dismantling by maintaining a constant distance between the scaffolding installed when constructing ordinary houses, buildings, and other structures and the components. In addition, it allows quick adjustment of the support spacing, and in particular ensures reliable fixation and strong support, and has various practical effects such as being easy to handle, economical, and reusable. play.

[Brief explanation of the drawing]

The drawings show one embodiment of this invention, with Figure 1 being a side view in use, Figure 2 being a cross-sectional view, and Figure 3 being a cross-sectional view.
The figure is a longitudinal sectional view of the main part, and FIG. 4 is a longitudinal sectional view of the main part in another embodiment. P...Scaffolding support member, W...Wall surface, 1...Clamp fitting, 2...Support tube, 3...Fixing metal fitting,
4... Adjustment bolt, 5... Clamping piece, 6... Bolt, 7... Nut, 8... Fastening tool, 9... Fastening hole, 10... Fastening plate, 11... Nut, 12...
Connecting part, 13...pin, 14...nut, 15...
...Fixing bolt, 16...Press regulating body, 17...Tightening metal fitting, 18...Fixing plate, 19...Through hole, 20
... Side wall, 21 ... Fixing bolt, 22 ... Straddle piece, 23 ... Plain washer, 24 ... Nut.

Claims (1)

[Scope of utility model registration request] A clamp fitting for attaching to the scaffold support member is attached to one end of the cylindrical support tube, and an adjustment bolt of an appropriate length is inserted into the support tube so that it can rotate and move freely without being removed. At the other end of the support tube, a fitting for fixing to the wall of the structure is pivotally fixed to the end of the adjustment bolt that comes out, and a through hole for the adjustment bolt is inserted into both walls at the other end of the support tube. A fixing plate with a substantially groove-shaped cross section is fixedly installed by opening the fixing plate, and an adjustment bolt is loosely passed through the fixing plate, and a part of the fixing plate fits between the threads of the adjustment bolt to tighten the adjustment bolt. For fixing, a tightening fitting is provided which has a built-in pressure regulating body formed in a spiral shape and whose length in the axial direction is approximately the same as the width of the fixing plate groove, and further connected to this tightening fitting. The fixing bolt is passed through a straddle piece that straddles the fixed plate opening, and is screwed with a nut on the straddle piece so that it can move forward and backward, so that the pressure regulating body can be freely tightened to the adjustment bolt. A fixed support device for a scaffolding support member, characterized by: