JPH1088785A - Scaffold frame having column for master rope - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve safety of scaffold assembling work by arranging an upper limit holding means and a lower limit holding means on a column for a vertically freely movable master rope arranged in a leg part of a scaffold frame. SOLUTION: A column 5 for a master rope is always held in parallel to a leg part 2 of a frame main body 1. When a scaffold frame is carried, the column 5 for a master rope is made parallel to the leg part 2, and the upper end is positioned so as not to project from a connecting material 8. At this time, a lower limit stopper pin 7a is locked on a lower column guide metal fitting 4, and the column 5 for a master rope neither move upward nor downward. Next, when the scaffold frame is assembled in a multistage shape, a large number of scaffold frames are juxtaposed in the lowest stage, and these are connected to each other by the connecting material. Afterwards, the column 5 for a master rope is pulled upward in a condition where an operator is postioned aboveground. At this time, when the column 5 for a master rope is slightly raised and rotated, the lower limit stopper pin 7a can be removed from a lower locking part, and can be raised.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for assembling a scaffold in a multistage using a gate-shaped scaffold frame, and more particularly to an apparatus for projecting a column for attaching a main rope to the frame body. .

[0002]

2. Description of the Related Art Conventionally, when assembling a scaffold in multiple stages, in order to enable a worker to use a safety belt, a pipe for a main rope support is clamped and bolted to a gate-shaped building frame which is a scaffold assembly equipment. Was attached through. The pipe mounting work for the main rope support is a high-place work in the case of assembling the scaffolds in a multi-stage structure, but the clamping work is usually a joint work of two people and requires both hands to work. Also, it was necessary to use a spanner or the like.

[0003]

In such a scaffold assembling work, the work for erecting the support for attaching the main rope is performed by using a clamp on the building frame, and is performed jointly by two people and both hands during the work. Since it is necessary to use, the operation is troublesome, and it has been required to simplify the operation and to omit the operation from the viewpoint of safety. In addition, there was a danger of dropping short pipes, clamp parts, spanners, and the like during the work of installing the support column for mounting the main rope. Further, a large number of parts were required for the support for attaching the main rope. Therefore, the present invention employs the following configuration in order to solve the above problem.

[0004]

A scaffolding frame with a support for a main rope according to the present invention is provided on one side of an upper end portion of a frame body 1 formed in a gate shape and one leg portion 2 of the gate shape. An upper column guide metal fitting 3 whose axis is parallel to the axis of the leg, and an upper column guide metal fitting 3 protruding from one side of an intermediate portion of the one leg 2.
Lower pillar guide fitting 4 having the same axis as the above-mentioned axis.
And penetrate the guide fittings 3 and 4 so as to be vertically movable,
Main rope support 5 having a length substantially equal to or less than the length of the leg 2
And an upper limit holding means 6 provided between the outer surface of the support 5 and at least one of the metal fittings so as to be detachably held in a state where the upper end of the support 5 is located above the upper end of the frame body 1. A lower limit holding means 7 provided between an outer surface of the support 5 and at least one of the metal fittings, and which is detachably held so that an upper end of the support 5 does not protrude from an upper end of the frame body 1. It is provided with.

According to a second aspect of the present invention, in the first aspect, the upper limit holding means 6 includes an upper limit stopper pin 6a protruding from a lower end of the support post 5 and a lower edge of the lower support guide fitting 4. The lower limit holding means 7 is provided with a lower limit stopper pin 7a protruding at an intermediate portion of the support post 5 and an upper edge of the lower support guide fitting 4. And the lower limit locking portion 7b.

[0006]

The supporting column 5 of the scaffolding frame according to the present invention can assume the state shown in FIG. 1 and the state shown in FIG. In order to protrude the main rope support 5 upward in order to lock the main rope, the main rope support 5 is lifted from the state shown in FIG. What is necessary is just to latch on the upper-limit latching part 6b (FIG. 2) of the guide fitting 4. FIG. Next, in order to lower the main rope support 5, the main rope support 5 is slightly lifted and slightly rotated to remove the upper limit stopper pin 6a from the upper limit locking portion 6b. Just lower it. Then, the lower limit stopper pin 7a is
By locking to b, the state of FIG. 4 can be maintained.

[0007]

Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a scaffold frame with a support for a main rope according to the present invention. FIG. 2 is an enlarged view of a part II in FIG. 1, FIG. 3 is an enlarged view of a part III thereof, and FIG. It is a principal part front view which shows the state which lowered 5.
This scaffolding frame with a support for a main rope has a frame body 1, an upper support guide fitting 3, a lower support guide fitting 4, and a support 5 for a main support. The frame body 1 has a pair of legs 2 and a connecting member 8 connecting the upper ends thereof, and a reinforcing member 9 provided between each leg 2 and the connecting member 8 which is welded and fixed at each end. Consists of An upper support guide 3 and a lower support guide 4 are protruded and fixed to the upper end and the middle of the side of one leg 2. The upper support guide member 3 includes a short tubular member and a bracket member as shown in FIG. 3, and the end of the bracket is welded and fixed to the side surface of the leg 2. Similarly, the lower support guide 4 includes a short tubular member and a bracket, and an end of the bracket is fixed to the side surface of the leg 2 by welding. The short tubular member of the lower column guide metal fitting 4 is provided with L-shaped and inverted L-shaped cutouts at the center from the upper and lower edges, and has a lower end locking portion 7b for retaining at the tip thereof. The upper limit locking portion 6b is formed slightly below.

Next, the main rope support 5 has a main rope locking hole 10 at its upper end, a lower limit stopper pin 7a at an intermediate portion, and an upper limit stopper pin 6a at its lower end. The lower limit stopper pin 7a and the lower limit locking portion 7b constitute a lower limit holding device 7, and the upper limit stopper pin 6a and the upper limit locking portion 6b form an upper limit holding device 6. The axis of the short tubular portion of each of the lower support guide fitting 4 and the upper support guide fitting 3 is on the same axis. The inner diameter of each short tubular member is the same, and is formed slightly larger than the outer diameter of the main rope support 5.
Therefore, the main rope support 5 moves vertically within the short tubular portions of the upper support guide 3 and the lower support guide 4.

[0009]

How to Use The scaffolding frame with a main rope support of the present invention has the above-described configuration, and the main rope support 5 is always held parallel to the legs 2 of the frame main body 1. Therefore, when transporting this scaffolding frame, the parent rope support 5 is positioned so as to be parallel to the leg 2 and not to protrude from the connecting member 8 as shown in FIG. At this time, the lower limit stopper pin 7a is locked by the lower column guide metal fitting 4, and the parent line column 5 does not move upward or downward. Next, in order to assemble this scaffold frame in multiple stages, a number of scaffold frames are arranged in parallel at the lowermost stage and connected between them by a connecting member (not shown). Then, with the worker positioned on the ground, the main rope support 5 is pulled up.

At this time, it is possible to remove the lower limit stopper pin 7a from the lower limit locking portion 7b (FIG. 2) of the lower column guide fitting 4 and lift it by slightly lifting and rotating the main rope support 5 in FIG. Becomes Next, when the upper limit stopper pin 6a at the lower end of the main column support 5 is locked to the upper limit locking portion 6b of the lower column guide fitting 4 as shown in FIGS. It can be held in a state of protruding upward from the connecting member 8. And the main rope lock hole 10
The main rope (not shown) can be attached by locking the main rope with a bind wire or the like, or by inserting the main rope itself into the main rope locking hole 10.

[0011]

According to the scaffolding frame with a support for a main rope according to the present invention, an upper support guide 3 and a lower support 4 are protruded from a leg 2 of a frame main body 1, and a main support 5 is vertically attached to the upper and lower support guides. It is movably penetrated. Then, the main rope support 5 can take an upper end position and a lower end position by the upper limit holding means 6 and the lower limit holding means 7. Therefore, a safety belt (belt) can be always used in the multi-stage stacking scaffold assembling work, and a fall accident or the like during the work can be reliably prevented. That is, the first stage (floor surface) in the multi-stage stacking scaffold assembly work
With the work height of, the main rope support 5 required for the second-stage work can be erected. Similarly, at the second working height, the main rope support 5 necessary for the third working of the scaffold can be installed.

For the work of storing the main rope 5, for example, after the third stage scaffold is disassembled, the third main strut 5 can be stored at the second working height. Furthermore, unlike the related art, a short pipe for fastening, a clamp component, a spanner, and the like are not required during the work for installing the main rope support, and the danger of dropping them can be prevented. Moreover, since the main rope support 5 can be held in a state where the upper end does not protrude from the upper end of the frame main body 1, transportation and assembly are easy.

[Brief description of the drawings]

FIG. 1 is a perspective view of a scaffolding frame with a support for a master rope according to the present invention.

FIG. 2 is an enlarged view of a part II in FIG.

FIG. 3 is an enlarged view of a part III in FIG. 1;

FIG. 4 is a front view of a main part of the scaffold frame in a state where a main rope support 5 is pulled down.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Frame main body 2 Leg part 3 Upper support guide metal fitting 4 Lower support guide metal fitting 5 Main rope support 6 Upper limit holding means 6a Upper limit stopper pin 6b Upper limit locking part 7 Lower limit holding means 7a Lower limit stopper pin 7b Lower limit locking part 8 Connecting material 9 Reinforcement material 10 Main rope lock hole

Claims (2)

[Claims] 1. A frame main body 1 formed in a gate shape, and an upper column guide metal fitting 3 protruding from one side of an upper end of one leg 2 of the gate shape and having an axis parallel to the axis of the leg. A lower column guide fitting 4 protruding from one side of the intermediate portion of the one leg 2 and having the same axis as the axis of the upper column guide fitting 3; A main rope support 5, which is freely penetrated and has a length substantially equal to or less than the length of the leg 2, is provided between an outer surface of the support 5 and at least one of the metal fittings, and an upper end of the support 5 is provided. Upper limit holding means 6 for detachably holding the frame body 1 at a position higher than the upper end thereof; and an upper limit holding means 6 provided between an outer surface of the column 5 and at least one of the metal fittings. Lower limit holding means 7 for detachably holding a state in which it does not project from the upper end of the frame body 1
And a scaffolding frame with a support for a master rope comprising: 2. The upper limit holding means 6 according to claim 1, wherein said upper limit holding means 6 is provided with an upper limit stopper pin 6a protruding from a lower end portion of said support post 5 and an upper limit stopper cut off at a lower edge of said lower support guide fitting 4. The lower limit holding means 7 includes a lower limit stopper pin 7a protruding from an intermediate portion of the column 5 and a lower limit locking portion 7b cut off at an upper edge of the lower support guide fitting 4. A scaffolding frame with a support for parent rope, composed of