JPH0710226U - Stair frame bracket in the frame scaffold - Google Patents

Abstract

(57) [Abstract] [Purpose] The stair frame is easily installed in the frame scaffold, and the accuracy and reliability of the stair frame are improved. [Structure] A stairway receiving rod portion 1a which is disposed in a frame scaffolding 10 and which is fitted with an end hanging metal fitting 18 of a staircase frame 15 to be fixedly attached thereto.
The frame scaffolding 10 fixed to both ends of the stair receiving rod 1a
It is characterized in that it is provided with a pair of left and right fitting ring portions 1b fitted to the adjusting bolts 12b of the base jack 12 mounted on the lower part of the building frame 11.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a staircase frame metal fitting in a frame scaffold suitable for incorporating and disposing staircase frames in various frame scaffolds.

[0002]

[Prior art]

 A conventional frame scaffold uses, for example, a main frame such as a building frame 11 with a base jack 12 for height adjustment, a horizontal member 13, and a reinforcing member as shown in FIG. Are placed side by side on the floor board, and the building frames 11 are connected by cloth frames, cross braces, handrail frames, etc., and the height of each building frame 11 is adjusted by the base jack 12, and The scaffolding board 14 is erected on the material 13, and the staircase frame 15 is arranged between the horizontal material 13 at the upper part of the main frame and the ground, and further connected to the upper part to correspond to the height of the building to be assembled into a structure. ing. In addition, in the conventional staircase frame 15, the upper ends of the left and right beams are hooked onto the cross members 13 above the main frame with end fittings, and there is a cross member between the lower ends of the building frames 11 of the frame scaffolding. Since there are no left and right beams, the lower ends of the left and right beams are placed directly on the floor board, or a single pipe is attached between the lower parts of the building frame 11 with a clamp, and the lower part of the stair frame 15 is fitted to this single pipe. , Built in the frame scaffolding.

[0003]

[Problems to be solved by the device]

 Conventionally, the staircase frame that is built in the frame scaffolding has been constructed by placing the lower ends of the left and right beams directly on the floor plate as described above, or by using a single pipe pipe that is clamped between the lower parts of the building frame. Since the lower part of the staircase frame 15 is fitted, there are problems in the levelness and stability of the treads, such as variations in the height of the lower end of the staircase frame and easy shaking.

The present invention was developed to address the above-mentioned problems, and its purpose is to facilitate the installation of staircase frames and to improve the accuracy of installation and reliability. It is to provide a stair frame support fitting in a frame scaffold with improved reliability.

[0005]

[Means for Solving the Problems]

 INDUSTRIAL APPLICABILITY The present invention is provided in the lower part of the frame of the frame scaffold, which is fixed to both ends of the stage receiving rod, which is disposed in the frame scaffold and which is fitted with the metal fittings at the end of the stair frame. It is equipped with a pair of left and right fitting ring parts that are fitted to the adjusting bolts of the base jack, and the fitting ring parts are fitted to the adjusting bolts of the base jack to adjust the height. By arranging the staircase receiving rod at a predetermined position between the parts, the staircase frame is fixedly attached to the cross member of the frame scaffolding and the staircase receiving rod with a high accuracy and firmly assembled.

[0006]

[Action]

 By installing a pair of left and right fitting ring parts on the adjusting bolts of the base jack that is attached to the bottom of the building frame of the frame scaffolding, and adjusting the height of the fitting ring part together with the building frame by the base jack, the stairs can be adjusted. The receiving rods are firmly and accurately arranged between the lower parts of the building frame and parallel to the horizontal members on the upper part of the main frame, and the upper and lower end metal fittings of the staircase frame are attached to the horizontal members of the frame scaffold. By attaching the stair frame to the stair receiving rod, the stair frame can be easily and accurately installed firmly at a predetermined position in the frame scaffold, and the level of the step plate of the stair frame is ensured and there is no shaking. Excellent placement and lifting performance can be obtained.

[0007]

【Example】

 FIG. 1 shows an embodiment of the present invention and its usage, FIG. 2 shows a staircase frame, and FIG. 3 shows a staircase frame receiver. In the figure, 1 is a staircase frame receiving metal fitting of the present invention, 1a is a stairway receiving rod portion in which the end hanging metal fitting 18 of the stage frame 15 is fitted in the frame scaffolding 10 and 1b is a stairway receiving rod portion 1a. Fitting ring portions fixed to both end portions of the base jack 12 and fitted to the adjusting bolts 12b of the base jack 12, 10 is a frame scaffold assembled by using a main frame such as a gate type or H type, and 11 is a frame scaffold 10 building frames, 13 horizontal members of the frame scaffolding 10, 14 scaffolding boards, 15 stair frames built in the frame scaffolding 10, 18 end hooks attached to the upper and lower ends of the stair frame 15. In the embodiment shown in the drawings, there are a staircase receiving rod portion 1a which is disposed in the frame scaffolding 10 and which is fitted with an end hanging metal fitting 18 of the staircase frame 15 and is fitted to both ends of the stairway receiving rod portion 1a. Adjusting bolts 12 for a base jack 12 that is fixed and attached to the bottom of a building frame 11 of a frame scaffolding 10 And summer in a stepped frame pivot bracket 1 within the framework scaffolds and a pair of left and right for fitting ring portion 1b which is fitted into.

More specifically, as shown in FIG. 1B, the base jack 12 includes an adjusting bolt 12b with a base 12a and an adjusting nut 12c with a handle for adjusting the height. The lower end of the building frame 11 is inserted into the upper part of the building, and the adjusting nut 12c with a handle is rotated and screwed up and down to adjust the height of the building frame 11. Fitting ring portions 1b fixed to both end portions of the staircase receiving rod portion 1a are fitted on the upper portion of the bolt 12b.

Further, as shown in FIGS. 2 (A) to 2 (C), the staircase frame 15 has a plurality of treads 17 fixed horizontally between the left and right beams 16 with a space therebetween, and the left and right beams 16 are vertically fixed. End fittings 18 are arranged at the ends, and the end fittings 18 are fixed to the upper and lower ends of the left and right beams 16 by appropriate means and are fitted in the stair receiving rod 1a. 18 a, a spring (not shown) for opening and closing the opening of the hook hole 18 a, and a stopper plate 19 urged by a spring and the like.

Further, as shown in FIG. 3, the staircase frame fitting 1 includes a staircase receiving rod portion 1a and a pair of left and right fitting ring portions 1b fixed to both end portions thereof. As shown in (A) and (B), a pair of left and right fitting ring portions 1b are respectively fitted on the adjusting bolts 12b of the base jack 12 mounted on the lower portion of the building frame 11 of the main frame of the frame scaffolding 10. When the adjustment nut 12c with a handle of each base jack 12 is rotated and screwed up and down to adjust the height of each fitting ring portion 1b together with the building frame 11, the stairway receiving rod portion 1a is moved within the main frame scaffolding 10 thereof. It is strongly fixed between the lower parts of the building frame 11, and this staircase receiving rod portion 1a is accurately and horizontally arranged with respect to the horizontal member 13 on the upper part of the adjacent main frame. Horizontal members above the main frame adjacent to the upper and lower end metal fittings 18 of the frame 15. The step frame 15 is easily and accurately and firmly installed in the frame scaffolding 10 by fitting the 13 and the stair receiving rod portion 1a by hooking and fitting, and the levelness of the tread 17 of the stair frame 15 is improved. Excellent placement performance and vertical movement performance such as being secured and free from shaking. In addition, the clasp 19 of the end hook 18 is operated against the bias of the spring to open its opening, the staircase frame 15 can be easily removed, and the layout of the staircase bracket can be changed to change the layout of the frame scaffold 10. It has an effect that it can be easily installed in a desired position.

[0011]

[Effect of device]

 As described above, the present invention installs a pair of left and right fitting ring parts on the upper part of the adjusting bolts of the base jack mounted on the lower part of the building frame of the main frame of the frame scaffolding, and constructs by each base jack. By adjusting the height of each fitting ring together with the frame, the stair receiving rods are accurately and strongly arranged at the predetermined positions between the lower parts of the building frame, and are arranged parallel to the horizontal members of the adjacent upper part of the frame scaffold. By installing the hanging metal fittings at the upper and lower ends of the staircase frame to the cross members and the staircase receiving rods, the staircase frame can be easily and accurately assembled and installed in the frame scaffolding. The levelness of the stairs treads is ensured and the stairs are not shaken.

[Brief description of drawings]

FIG. 1 is an overall perspective view showing an embodiment of the present invention (A) and an enlarged front view of a main portion X (B).

FIG. 2 is a front view (A) and a side view (B) of a staircase frame and an enlarged side view (C) of an end hook.

FIG. 3 is a plan view of the staircase bracket of the present invention.

[Explanation of symbols]

 1 stair frame receiving bracket 1a stair receiving rod 1b fitting ring 1b 10 frame scaffolding 12 base jack 12b adjusting bolt 15 stair frame 18 end fitting

Claims (1)

[Scope of utility model registration request] 1. A staircase receiving rod part which is disposed in the frame scaffolding and which is fitted with an end hanging metal fitting of the staircase frame, and fixed to both ends of the staircase receiving rod part, and is provided at a lower portion of the building frame of the frame scaffolding. A staircase frame metal fitting in a frame scaffold, comprising a pair of left and right fitting ring portions fitted to adjusting bolts of the mounted base jack.