JPH0421406Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a strut used to erect a main rope used during assembly and dismantling of a framework scaffold provided primarily on the exterior wall of a building.

[Conventional technology]

As is well known, the main rope is used as a safety net to prevent falls, and there are various methods of tensioning framework scaffolding, including the method of using special supports for tensioning the main rope. .

As shown in Japanese Utility Model Publication No. 58-13862 and Japanese Utility Model Application Publication No. 56-98252, such a main rope support is attached to the main pillar of a framework scaffold, but as an example, conventionally the main rope support is shown in Fig. 7. As shown in FIG.
3, and when assembling or dismantling the framework scaffold, the mounting bracket 22 is once removed from the main pillar 23, the master rope support is removed from the main pillar 23, and the upper or lower main pillar 23 is attached to the main pillar 23.
It has been replaced with a new one.

[Problem that the invention attempts to solve]

For this reason, in the past, moving the main rope support required time-consuming replacement work, resulting in poor work efficiency, and furthermore, such work was dangerous because it was carried out at a high place.

The purpose of the present invention is to eliminate the disadvantages of the conventional example,
To provide a main rope support that can be easily and quickly moved, improve the efficiency of replacement work, and ensure work safety.

[Means for solving problems]

In order to achieve the above object, the present invention includes an inner support column slidably inserted into the outer support support, a locking member that can be freely engaged and detached from the main column of the framework scaffold attached to both of the support supports, and a locking member that is detachable from the main column of the framework scaffold. Attach the main rope to the
The gist is that a guide roller to the main column is provided on the side surface of the outer column, and a rope for pulling up the outer column is stretched between the locking member on the upper part of the inner column and the upper part of the outer column.

[Effect]

According to the present invention, for example, in order to move the main rope support upward, the inner support that has already been pulled up is fixed to the main pillar of the upper framework scaffold via the locking member, and in this state, the outer support support is engaged with the main support. Remove the retaining members from the main pillars of the lower framework scaffold.

Then, by operating the pulling rope, the outer support pillar is pulled up while rolling the guide roller along the main pillar, and the outer support support is fixed to the upper main pillar using the locking member.

Next, while leaving the outer strut as it is, only the inner strut is pulled upward again to put the master rope strut in an extended state.

In this way, by alternately pulling up the outer strut and the inner strut along the framework, the main rope strut can be easily moved.

At this time, the outer support and inner support are connected by a pulling rope, so the outer support does not fall.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

Fig. 1 is a front view showing an embodiment of the main rope support of the present invention, and Fig. 2 is an overall front view of a framework scaffold to which the main rope support of the present invention is attached.The main rope support of the present invention is a hollow outer support. 1 and an inner column 2 slidably inserted into the outer column 1, and a pin 6a is provided on the side of the outer column 1 as a locking member that can be freely engaged with and detached from the main column 5 of the framework scaffold 4. A fastener 6 is attached to the inner support 2 side, and an L is attached to the upper end of the inner support 2 as a locking member that can be freely connected to and detached from the support 5.
A letter-shaped fastener 7 is attached so as to be horizontally rotatable.

The outer support 1 is further provided with a guide roller 8 to the support 5 on its side, and
A fixing pin 9 for fixing the inner support 2 at approximately the middle position is provided perpendicular to the axis of the support 1.

In addition, the upper part of the inner support 2, for example, the fastener 7
A ring 10 for attaching the main rope 3 is attached to the top, and a ring 1 is attached to the bottom of the fastener 7 and the top of the outer support 1, respectively.
1 and 12 are attached, and a rope 13 for pulling up the outer support 1 is stretched between the rings 11 and 12.

Note that the rings 11 and 12 may be replaced with pulleys.

Next, we will explain how to use and operate the case where, for example, when assembling the framework scaffolding 4, the main rope support is moved upward. In the state shown in Fig. 3, the outer support
is fixed to the strut 5a by a fastener 6, the inner strut 2 is pulled upward, and its lower part is fixed to the outer strut 1 with a fixing pin 9, so that the master rope strut is stretched.

Then, the end of the main rope 3 is fixed to the ring 10 at the upper end of the inner support 2, and the main rope support is similarly attached to the main pillar at the other end of the framework scaffold 4, and the main rope is stretched between the main rope supports. will be established.

Next, in order to move the master rope strut attached to the main pole 5a in this way upward, as shown in FIG. Fix the clasp 7 of the inner column 2 to the upper main column 5b, then disengage the clasp 6 of the outer column 1 and remove the fixing pin 9 to disconnect it from the inner column. As it is, only the outer support 1 is pulled upward by operating the pulling rope 13. At this time, since the guide roller 8 attached thereto rolls along the main column 5a, the outer column 1
is pulled up smoothly along the main column 5a, and since the outer column 1 and the inner column 2 are connected by the lifting rope 13, the outer column 1 does not fall.

In this way, as shown in Fig. 5, only the outer strut 1 is pulled up to the upper main strut 5b position, and the entire master rope strut is retracted. Then, the outer strut 1 is fixed to the upper main strut 5b with the fastener 6, and then Then, as shown in FIG. 6, only the inner column 2 is pulled upward again, leaving the outer column 1 as it is, and fixed to the outer column 1 with the fixing pin 9. In this way, the main rope support is in the same state as shown in FIG. 3 and is fixed in the stretched state.

To move the main rope support further upward from this state, frame a new main support 5c on top of the main support 5b, and repeat the operation of raising the outer support 1 and the inner support 2 alternately in the same way as above. Bye.

Note that a machine such as a winch can be used to pull up the outer support 1 and the inner support 2 using the pulling rope 13, but it may also be performed manually.

If the main rope support is to be moved downward when the framework scaffold is dismantled, it may be operated in the opposite manner to the above-described upward movement.

[Effect of idea]

As mentioned above, with the main rope support of the present invention, it is only necessary to alternately raise and lower the outer support and inner support along the main pillar, and the outer support can be moved smoothly by the rolling of the guide rollers, making it easy to use. It can be moved up and down, improving work efficiency, eliminating the need for troublesome reloading work at high places, and ensuring work safety.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an embodiment of the main rope support of the present invention, Fig. 2 is an overall front view of a framework scaffold to which the main rope support of the present invention is attached, and Figs. 3 to 6 show the operation of the embodiment. A front view showing the state, FIG. 7 is an overall front view of a framework scaffold to which conventional main rope supports are attached. 1... Outer pillar, 2... Inner pillar, 3
...Main rope, 4...Framework scaffolding, 5, 5a, 5b, 5
c... Main pillar, 6... Fastener, 6a... Pin, 7...
... Fastener, 8 ... Guide roller, 9 ... Fixed pin, 10 ... Ring, 11, 12 ... Ring, 13 ... Rope, 21 ... Main rope support, 22 ... Mounting bracket, 2
3...Main pillar.

Claims (1)

[Scope of utility model registration request] An inner support column is slidably inserted into the outer support support, a locking member that can be freely engaged and detached from the main pillar of the framework scaffold is attached to both of the support supports, a master rope is attached to the inner support support, and a side surface of the outer support support is attached. A main rope support, characterized in that a guide roller to the main support is provided, and a rope for pulling up the outer support is stretched between the locking member at the upper part of the inner support and the upper part of the outer support.