JPH0735013Y2 - Remodelable stair frame scaffolding - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a remodelable staircase frame scaffold used for finishing work of stairs.

[Conventional technology]

Conventionally, stairs finishing work involves building a frame scaffolding on the tread of the stairs with a building frame and cross braces and a cloth frame.When finishing the tread and the foot, the frame is reinforced and the base of the lower end of the leg pipe is used. The jack was adjusted so that the bale plate could be pulled up.

[Problems to be solved by the device]

As mentioned above, when replacing the framework scaffolding in the conventional stair finishing work, when the base plate at the lower end of the leg pipe of the building frame placed on the tread is pulled upward from the tread, the lower end of the leg pipe is In order to prevent the loss of the supporting force of the leg tube, it was necessary to previously hang horizontal members on the leg tubes before and after the leg tube to firmly bond them to reinforce the framework, but that work is troublesome and troublesome. At the same time, there was a drawback that the traffic in the vicinity was obstructed during the work.

It is an object of the present invention to eliminate such a drawback and to make it possible to easily and easily re-arrange the framework scaffold.

[Means for Solving the Problems]

In order to solve the above problems, this invention connects a short leg pipe and a long leg pipe each having a base jack so that they are orthogonal to both ends of a horizontal rod, and an intermediate jack can be attached to any position of the horizontal rod. It is a means of remodeling staircase framework scaffolding.

[Action]

 The operation of this invention will be described with reference to an embodiment.

In order to finish the tread 15 or the barbed portion 16 of the stairs 14, as shown in FIG. 2, in the case of the upper stage, the intermediate jack 10 is inserted into the bolt insertion hole 8 near the short leg pipe 1 of the horizontal rod 3 in the U bolt 11. After tightening the leg 12 and tightening the leg 12 with the nut 13, the rotary handle 6 is rotated to press the space between the horizontal rod 3 and the tread 15 so that the horizontal rod 3 is securely supported on the upper surface of the rotary handle 6. Next, pull up the base jack 7 of the short leg tube 1 to pull up the base plate 4 and the tread surface.
15a or the tread 15a or the tuck-in by changing the support of the frame scaffold by the short leg pipe 1 and the long leg pipe 2 to the support by the intermediate jack 10 and the long leg pipe 2 with a space between the tread 15a or the long leg pipe 2 The finishing work of the portion 16a can be performed. Further, in the case of the lower stage, the U bolt 11 is inserted into the bolt insertion hole 8 of the horizontal rod 3 near the long leg pipe 2 and the intermediate jack 10 is attached by the nut 13 near the long leg pipe 2 of the horizontal rod 3 as in the upper stage. This is for finishing the tread surface 15b or the indented portion 16b.

〔Example〕

 An embodiment of the present invention will be described with reference to the drawings.

In FIG. 1, left and right short leg pipes 1 and long leg pipes 2 are connected to a horizontal rod 3 by welding or the like, and in each of the short leg pipe 1 and the long leg pipe 2, a screw rod 5 is provided on a base plate 4. Is rotatably attached, and a base jack 7 configured by screwing a rotary handle 6 into a screw rod 5 is fitted thereinto. Further, a large number of bolt fitting holes 8 are provided in the horizontal rod 3, and the long leg pipe 2 and the horizontal rod 3 are provided. A brace 9 for reinforcement is attached between and. A horizontal rod 3 between the short leg pipe 1 and the long leg pipe 2 is rotatably mounted with a screw rod 5 on a base plate 4, and the screw rod 5 has a rotary handle 6 screwed into it, similar to a base jack 7. The intermediate jack 10 is attached to the horizontal rod 3 by inserting both legs 12 of the U bolt 11 into the bolt insertion hole 8 and tightening the nut 13.

[Effect of device]

According to this invention, when the frame scaffolding is relocated, it is not necessary to provide a complicated reinforcement in advance to the repositioning part, and only the intermediate jack is required to be operated, so that the work can be performed easily and easily by anyone. Moreover, since long single pipes are not used for the work, there is no obstruction to traffic around the work place, and there is no congestion in the work.

[Brief description of drawings]

The drawings show one embodiment of the present invention. FIG. 1 is a front view and FIG. 2 is a perspective view. 1 ... Short leg pipe, 2 ... Long leg pipe, 3 ... Horizontal rod, 7 ... Base jack, 10 ... Intermediate jack.

Claims (1)

[Scope of utility model registration request] 1. A short leg pipe (1) and a long leg pipe (2) each having a base jack (7) are connected orthogonally to both ends of a horizontal rod (3), and the horizontal rod (3) is located at any position. A framed scaffolding for stairs that can be relocated so that an intermediate jack (10) can be attached to it.