JPH0118754Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to providing a foldable rolling tower.

Traditionally, at construction sites, single pipe frames, stepladders, rolling towers, etc. have been used as work platforms for frame work, finishing work, equipment work, etc., but the conditions are such that the work areas are moved one after the other. For the lower part, a rolling tower that can be easily moved is the most convenient and its use is desirable from the standpoint of efficiency.

However, this product is used on each floor and must be transported to the construction floor by repeatedly disassembling and reassembling it, whereas with conventional products, each node is separated and dismantled, and each As it is a method of joining and separating separated parts, it requires a lot of man-hours and is extremely inefficient, and it is also difficult to manage disassembled parts, making it difficult to maintain. ing.

This proposal was made in view of the above-mentioned circumstances, and its gist is that a ladder section is provided within the plane and a swivel wheel is attached to the lower end of the column base between the opposing building frames.
A brace with pin fixing parts for bending and a supporting arm for preventing downward bending is installed in the middle with pins at both ends, and inside the upper end of one of the frames, the base end of the landing is fixed at the specified left and right positions with the tip. The other building frame is secured with a play allowance and is pinned, and a groove is provided protruding inside the upper end of the other frame into which a locking hook attached to the tip of the landing fits, thereby forming a floor base. A connecting handrail frame is installed with removable pins between the opposing handrail frames, which are attached to the upper part of the column base using a double pipe system, so that the landing and the connecting handrail frame can be removed. It can be folded into a plate shape with a single touch, and assembly can be completed with a single touch by pushing and expanding the landing and connecting handrail frames, reducing man-hours during disassembly and assembly, and facilitating maintenance. has been achieved.

This will be explained in detail below based on the drawings.

Figure 1 is a bird's-eye view of the entire product.
is a building frame configured as one opposing surface of a work platform frame with ladder parts 1a, 1a' provided within its plane and swivel casters 1c, 1c' attached to the lower ends of column bases 1b, 1b' on both sides,
Between the frames 1 and 1', braces 2 and 2', which constitute the other opposing surfaces of the work bed frame, are installed with pins at both ends, thereby forming the work bed frame. The braces 2, 2' have pin fixing parts 4, 4' interposed therebetween for bending, and attached arms 5, 5' are attached to the pin fixing parts to prevent the braces from bending downward. There is.

Therefore, if this framework is made possible by pushing up and bending the pinned portions 4, 4' of the braces 2, 2' and allowing parallel folding of the braces 2, 2', it will be folded in a manner that draws the opposing building frames 1, 1' together. If the opposing frames 1 and 1' are separated, the frames will be automatically assembled.

As shown in detail in FIG. 2, the base end of a landing 6 having a locking hook 8 at its tip is pinned 7 to the inside of the upper end of the opposing building frame 1, and the base end of the landing 6, which has a locking hook 8 at the tip, is fixed to the inside of the upper end of the other opposing building frame 1'. A groove 9 for fitting the locking hook 8 is provided in a protruding manner, and the landing 6 is assembled by dropping the locking hook 8 into the groove 9. The landing 6 is supported by the seven pinned points and rotates downward, but at this time, the groove 9 protruding on the rotation locus is required to move the pinned portion 7 to the left and right at the tip of the landing 6. This is handled by configuring the system so that the play allowance for the game can be secured. Therefore, the landing 6 will be sandwiched between the opposing building frames 1 and 1' when the frame is folded.

The handrail frame that must be installed on the landing 6 is a U-shaped handrail frame 10, 1 on the top of the column base 1b, 1b'.
0' is assembled so that it can be installed inside using a double pipe system, and a communication handrail frame 11 is installed on the side between the opposing handrail frames 10 and 10' using removable pin fastening means such as a lock nut. It will be established. Therefore, the communication handrail frame 11 can be rotated downward by removing one of its pivots, and thereby the column base 1 is rotated downward.
It can be placed along the sides of b and 1b'.

Although the locks at the pull-out position of the handrail frames 10, 10', which are assembled so that they can be installed inside, are not shown, there are locking pins, etc. that are biased by springs attached to the outside of the pipes of the column bases 1b, 1b'. done by means.

In addition, reference numeral 12 in the figure is a tongue plate erected at the upper end of the opposing building frame 1' with a groove 9 for fitting, and a rope 13 with its tip fixed to the landing 6 is passed through the through hole formed in this tongue plate from outside the frame. By pulling and returning the rope 13, rotation work during assembly and disassembly of the landing 6 is facilitated.

Further, reference numeral 14 in the figure indicates a pin-fastening band attached to the column bases 1b and 1b', and a tip hook locking pin is arranged on the opposite column base, which locks the folded position as described above and makes it easy to carry. The inconvenience of time will disappear.

The folding order of the present product having the above structure will be described in detail below based on FIG. 3.

(1) Remove one side of the communication handrail frame 11.

(2) Pull out the retaining pins that fasten the opposing handrail frames 10, 10' and lower the handrail frames 10, 10'.

(3) Pull the rope 13 to lift one end of the landing 6, remove the locking hook 8, and then lower it gradually. (Figure a) (4) Fold the braces 2, 2' by simultaneously pushing up the sides slightly below the pinned parts 4, 4' of the braces 2, 2', and fold the braces 2, 2' together.
1' to complete the folding. (Figure b, c
(Figure) In the figure, 15 indicates the operator.

As described above, with this product, the one-touch method reduces the number of disassembly and assembly steps, and since the parts are pivotally connected, they do not need to be separated, making transportation and maintenance easier. There is.

Also, from the perspective of the site side, it has the advantage of saving labor in construction materials, taking up less space, and making it clear who will be using it, which is of great significance.

[Brief explanation of the drawing]

Figure 1 is an overhead view of the proposed product, and Figures 2 a and b are plan and side views showing the assembly configuration of the landing in the proposed product.
Figures 3a, b, and c are diagrams showing the disassembly procedure of the product. 1, 1'... Opposing building frame, 1a, 1a'... Ladder part,
1b, 1b'...Column base, 1c, 1c'...Swivel leg storage,
2, 2'...Brace, 4, 4'...Pinning part,
5,5'...spread arm, 6...dance, 7...pinned,
8...Latching hook, 9...Groove, 10, 10'...
... Handrail frame, 11... Communication handrail frame, 12... Tongue plate, 13... Rope, 14... Band.

Claims (1)

[Scope of utility model registration request] A ladder section is provided in the plane, and a brace is attached at both ends with a support arm to prevent downward bending and a bending pin section between the opposing building frames with a swivel wheel attached to the bottom end of the column base. At the same time, the base end of the landing is pinned to the inside of the upper end of one of the building frames with a predetermined left and right free play at the tip, and the end of the landing is secured to the inside of the upper end of the other building frame. The floor base is constructed by protruding a groove into which the attached locking hook fits, and there is also communication between the opposing handrail frames, which are attached to the top of the column base using a double pipe system so that they can be installed internally. A folding rolling tower characterized in that the handrail frame is constructed with removable pins.