JPH0453402Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an expandable brace used for scaffolding, etc.

(Prior Art) Conventionally, for example, at the corner of a scaffold, one of the orthogonal scaffolds may not be long enough due to the presence of an existing building or due to the narrow installation area, etc. There are scaffolding boards and frames that can be expanded and contracted in order to adjust the width of the scaffolding.

(Problem that the invention aims to solve) When adjusting the width of the scaffolding, the bracing must also correspond to this. Therefore, in the past, several braces of different lengths were prepared and the one needed was selected and used each time. However, preparing braces of different lengths increases the number of types of braces, which is disadvantageous in terms of cost, makes assembly, transportation, storage, and other management troublesome, and replaces them with new ones when assembling. It takes time and effort to replace.

The object of the invention is to provide a framework that is easy to assemble, easy to manage, and advantageous in terms of cost.

(Means for Solving the Problems) The main body of the brace of the present invention consists of at least two pipes 2 and 3, and the inner pipe 3 of the other can be freely inserted into the outer pipe 2 of the main body. The length can be expanded or contracted. The means for connecting and fixing both pipes 2 and 3 is
It is constituted by a wedge means 4 driven into the space 5 between the outer pipe 2 and the inserted part of the inner pipe 3. The inner pipe 3 includes both a hollow pipe and a solid rod. The wedge means 4 is located between the outer pipe 2 and the insertion portion of the inner pipe 3 inside the outer pipe.
This includes a wedge pin 41 that can be driven into the outer pipe, a support plate 44 attached to the outer circumference of the outer pipe, and bolts 42 and nuts 43 for connecting the support plate and the wedge pin.

(Function) The wedge means 4 is unfixed and the inner pipe 3 is moved in and out of the outer pipe 2 to adjust its length.

(Example) Examples of the present invention will be described below.

In FIGS. 1 to 4, a brace 1 connects an inner pipe (insertion pipe) 3 to an outer pipe (waist pipe) 2 so that it can be taken in and out, and is connected and fixed by a wedge means 4. be. Upper end of outer pipe 2 and inner pipe 3
Latching plates 21 and 31 are respectively attached to the lower ends of the latching plates 21 and 31, and latching holes 21a and 31a are formed in each of the latching plates.

As shown in FIGS. 1 to 3, a groove 32 having a V-shaped cross section is formed along the entire length of the inner pipe 3. As shown in FIGS. Therefore, a gap 5 is formed between the inner circumferential surface of the outer pipe 2 and the groove portion 32.

Here, the wedge means 4 will be explained with reference to FIGS. 2 and 3.

It consists of a wedge pin 41, a bolt 42, a nut 43 and a support plate 44. Drive the wedge pin 41 into the space 5 between the inner and outer pipes 2 and 3,
This is to fix the connection between both pipes. A mounting plate 45 is horizontally attached to the lower end of the wedge pin 41. Mounting part 45 of this mounting plate
An annular portion 42a at the lower end of a bolt 42 is swingably attached to a. The support plate 44 is provided protruding from the outer peripheral surface of the lower end of the outer pipe 2, and is
A letter-shaped groove 44a is cut. A bolt 42 can be inserted into this groove, and the bolt 42 can be fixed to the support plate 44 with a nut 43 in the inserted state. This restricts the downward movement of the wedge pin 41 and prevents it from coming off.

As shown in FIG. 1, two braces 1, 1 intersect and are connected by a connecting hardware 6, and can swing relative to each other around this connecting hardware.

The length adjustment of brace 1 will be explained.

From the state shown by the solid line in FIG.
5a as a center, and bring it down to the position indicated by the chain line, and then pull the wedge pin 41 downward and pull it out from the gap 5. As a result, both pipes 2,
3 bonds are broken. Thereafter, the length of the inner pipe 3 is adjusted by inserting and removing the inner pipe 3 from the lower end of the outer pipe 2. After adjustment, the bolt 42 is raised from the position indicated by the chain line in the direction of the arrow, and the connection between the pipes 2 and 3 is fixed again in the reverse order of the above procedure.

Here, the specific structure of the telescopic scaffold used together with the telescopic brace 1 will be explained with reference to FIGS. 5 to 12.

In FIGS. 5 and 6, the corner scaffold 6 has a scaffold board 7 and a cloth frame 8 that are extendable and retractable. Although not shown, the handrail parallel to the cloth frame 8 is also extendable and retractable.

First, the specific structure of the scaffold board 7 will be explained based on FIGS. 7 to 9.

The scaffolding board 7 consists of an upper scaffolding board 71 and a lower scaffolding board 72, and the tips of both the upper and lower scaffolding boards are overlapped with each other. Guide rails 71a, 71a bent inward are provided on both sides of the upper scaffolding board 71. Further, sliding parts 72a, 72a are provided on both sides of the lower scaffolding 72 to be able to slide freely on the guide rails. A position adjustment plate 71c is attached to the tip of the upper scaffolding board 71, and adjustment holes 71b are bored on both sides. A plurality of adjustment holes 72b are also formed on both sides of the lower scaffolding board 72 at predetermined intervals, and these adjustment holes can face the adjustment holes 71b.

The length of the scaffolding board 7 can be adjusted by moving one of the scaffolding boards, for example, the scaffolding board 72, back and forth to adjust the length of the adjustment hole 7.
2b corresponds to the adjustment hole 71b, pins are inserted into both adjustment holes from the outside to fix both scaffolding boards.

Latching parts 7a, 7a are attached to both ends of the scaffold board 7.

Next, the specific structure of the cloth frame 8 is shown in FIGS. 10 to 1.
I will explain based on Figure 2.

The cloth frame 8 also consists of an outer pipe 81 and an inner pipe 82. The tip of the inner pipe 82 is movable within the outer pipe 81 and is prevented from coming off by a rivet 83 and a stopper 84. The rivet 83 is attached to the outer pipe 81 from the outside, and the shaft portion is located within the outer peripheral recess 82a of the inner pipe 82.
The stopper 84 is fixed in the recess of the inner pipe 82 and can come into contact with the shaft of the rivet 83.

The support frame 9 is orthogonal to the outer pipe 81.

The length of the cloth frame 8 is adjusted by moving the inner pipe 82 back and forth with respect to the outer pipe 81.

Explain how to use brace 1.

For example, when adjusting the width of the scaffold 6 from the position indicated by the solid line to the position indicated by the chain line in FIG. One end (right end) is fixed to the scaffolding frame 61. Leave the other end of the brace as is, and do not install or remove it.

The number of pipes constituting the bracing may be three or more and is not limited to the number in the above example.

(Effects of the invention) According to the invention, since the length can be adjusted by expanding and contracting, there is no need to prepare multiple types of braces with different lengths as in the past, and management is easy. It is advantageous in terms of cost and can be assembled efficiently since there is no need to replace braces during assembly. In addition, the length of the bracing can be adjusted steplessly using wedge means, and changes in the width of the scaffolding can be accurately and reliably adjusted. Pipes can be connected and fixed securely and firmly, and bolts and nuts can be This ensures that the wedge pin does not come off.

[Brief explanation of the drawing]

Fig. 1 is a front view, Fig. 2 is a partially cutaway enlarged front view of the wedge means, Fig. 3 is a sectional view taken along the line of Fig. 2,
Figure 4 is a left side view of Figure 1, Figure 5 is an explanatory diagram of the corner scaffold seen from above, Figure 6 is an explanatory diagram of the corner scaffold seen from the front, and Figure 7 is an enlarged partially cutaway plan view of the scaffold board. , FIG. 8 is a front view of the scaffolding board, FIG. 9 is a sectional view taken along the line of FIG. 8, and FIG. 10 is a front view of the cloth frame.
Fig. 11 is an enlarged partially cutaway front view of the connecting part of both the inner and outer pipes of the cloth frame, and Fig. 12 is the
FIG. 1... Bracing, 2... One pipe (outer pipe), 3... The other pipe (inner pipe), 4... Wedge means, 41... Wedge pin, 42... Bolt, 43... Nut, 44...Support plate, 5
...Pause.

Claims (1)

[Scope of utility model registration request] It consists of at least two pipes, one pipe can be inserted into and taken out from the other pipe, and it is provided with wedge means for fixing the connection between the two pipes, and the wedge means is connected to the one pipe and the other pipe. a wedge pin that can be driven between the inserted part of the other pipe, a support plate attached to the outer periphery of the one pipe, and bolts and nuts for connecting the support plate and the wedge pin. A muscle that is characterized by being prepared.