JPH0810126Y2 - Foldable staircase indoor scaffolding - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a scaffold used at a construction site, particularly for finishing a staircase or for construction of facilities.

[Prior Art] Conventionally, many staircase indoor scaffolds of this type are formed by forming a frame with a single pipe and connecting a scaffold plate to the frame. There is also a metallic unit type that has been specially developed as a staircase scaffold.

[Problems to be Solved by the Invention] In the case of using the single pipe and the scaffolding plate, the single pipe is long, so that it is difficult to carry because it is not mounted on a lifting device such as a temporary elevator, and it is troublesome to assemble and disassemble. Hanging,
In addition, there is a defect that the single-pipe pipe easily hits the finished surface such as a wall when dismantled and is damaged. Further, in the case of the metal unit type, the whole weight is heavy, which is very troublesome in transportation and handling.

The present invention has been made to solve the above-mentioned conventional problems, and the foldable stairs are not long in length, light in weight, easy to transport, and easy to assemble and disassemble. The technical challenge is to provide indoor scaffolding.

[Means for Solving the Problem] As a means for solving this technical problem, the present invention has a horizontal member and a column, and an arm having a lock pin is fixed to the upper end of the column. In addition, a pair of aluminum-made building frames equipped with height adjusting legs at the lower ends of the columns and slip stoppers are attached on the upper surface with a certain interval, and mounting plates are fixed on both sides of the ends. , The tip of the arm is pivotally supported by a support shaft to attach the pair of building frames to the mounting plate so as to be openable and closable, and the lock pin is locked on an arc centered on the support shaft. An aluminum floor plate having a plurality of positioning holes formed therein and a hole for adjusting the length are formed at regular intervals, and the upper end portion is pivotally supported by a support shaft at approximately the center of the side surface of the floor plate. , The lower end has a hole for adjusting the length in the mounting portion provided on the pillar of the building frame. It is constructed integrally with two lengths that can be fixed with a fixing tool such as a bolt, the pair of building frames are opened, and the lock pin is selected from one of the positioning holes of the mounting plate. Any one of the holes for adjusting the length is fixed by locking each of them and fixing the pair of building frames so that the floor plate is horizontal or inclined and rotating the two heights around the support shaft. By selecting and fixing each to the mounting portion of the pillar of the one of the building frames with the fixing device, it is possible to form a scaffolding unit of flat platform or inclined platform is there.

[Operation] When used on a construction site, it is placed on the stairs as an inclined platform scaffolding unit with a slanted floorboard, and is placed on the stairway landing as a flat platform scaffolding unit without tilting the floorboard. This makes it possible to easily form the staircase interior scaffolding.

After use, you can fold the inclined platform-shaped scaffolding unit and the flat platform-shaped scaffolding unit flatly and compactly by removing the fixture of the cane and closing the building frame inside. Made of lightweight, it can be easily transported without damaging the finished surface of the wall.

[Embodiment] Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

In FIG. 1, reference numeral 1 is a building frame made of aluminum, a width D is set to about 69 cm, and a height H is set to 170 to 195 cm, and a reinforcing material 1c is provided between the horizontal member 1a and the pillar 1b. It is fixed across each. A leg 2 for height adjustment is attached to the lower end of the column 1b. The leg 2 is formed so as to be movable with respect to the column 1b as shown in FIG. It can be fixed with 3.

4 is a floor board made of aluminum, the width of which is slightly smaller than the width of the building frame 1, the length of which is about 189 cm, and the top surface of which is made of aluminum and has a mountain-like cross section with a certain interval. Stops 4a are attached, and the upper ends of the building frames 1 are pivotally supported on both sides of the ends. That is, as shown in FIG. 3, mounting plates 5 are fixed on both sides of the end of the floor plate 4,
An arm 6 is fixed to the upper end of the support column 1b of the building frame 1, and the tip of this arm 6 is pivotally supported by the mounting plate 5 by a support shaft 7. Therefore, the building frame 1 can be opened and closed around the support shaft 7. Further, the mounting plate 5 is provided with positioning holes 5a, 5b, 5c at predetermined positions on an arc centered on the support shaft 7, and the arm 6 is locked as shown in FIG. The pin 8 is mounted through the spring 9, and the hole 6a of the arm 6 through which the lock pin 8 is inserted and the hole 5a of the mounting plate 5 are inserted.
The lock pin 8 is inserted through these holes when any one of the columns 5c to 5c is fitted together so that the pillar 1b of the building frame 1 can be positioned. That is, the building frame 1 can be positioned and fixed by selecting any of the three holes.

10 is a cane, a hole for adjusting the length at regular intervals
10a is formed, the upper end is pivotally supported by a support shaft 11 on the substantially central portion of the side surface of the floor plate 4, and the lower end is a fixture 12 such as a bolt on a mounting portion provided on the pillar 1b of the building frame 1. It can be fixed, and a scaffolding unit can be formed by fixing two canes 10 on both sides.

The present invention is constructed as described above, and by combining a plurality of the scaffolding units, a staircase scaffold can be formed as shown in FIG. First, the pair of building frames 1 are positioned in the holes 5a of the mounting plate 5, respectively, to form a flat platform scaffolding unit U ₁ and set on the upper floor P of the stairs, and then the building frame 1 is mounted on the mounting plate 1. 5. The plurality of scaffolding units U _{2 in the} form of a slanting platform in which the floor board 4 is slanted are formed by positioning the canes 10 in the holes 5b, selecting the length of the cane 10 by the holes 10a, and fixing the pillars 1b. Then, it is installed on the stairs Q, the same flat stand-shaped scaffolding unit U ₃ is installed on the landing R of the stairs, and the aluminum traps 13 are attached to the end faces of this scaffolding unit U ₃ . These scaffolding units can be easily formed at the landing R of the stairs, and the scaffolding units may be connected to each other after installation. In addition, in the inclined platform-shaped scaffolding unit U ₂ , the inclination angle of the floorboard 4 can be finely adjusted by adjusting the height of the leg 2. The upper floor P, the stairs Q,
Even if the surface of the landing R is uneven before finishing, each scaffolding unit can be installed in a stable state by appropriately adjusting the height adjusting leg 2.

On the other hand, after use, the cane of each scaffolding unit
By removing the fixtures 12 of 10 and folding the pair of building frames 1 inward, the whole can be compacted as shown in FIG. To fold the building frame 1, push the lock pin 8 to remove it from the hole 5a or 5b of the mounting plate 5, rotate the building frame 1 around the support shaft 7, and lock it when it is in a position substantially parallel to the floor plate 4. The pin 8 fits into the hole 5c and is held and fixed at that position. In this way, if the pair of building frames 1 are folded, they can be placed on a lifting device (not shown) such as a temporary elevator, and because they are lightweight, scaffold removal work is easy and transportation work is easy. It will be.

In this case, one mounting plate 5 ′ is formed longer than the other mounting plate 5 so that the pair of folded building frames 1 do not hit each other, and the mounting position of the building frame is shifted by the thickness of the building frame 1. It is preferable.

[Effects of the Invention] As described above, according to the present invention, the scaffolding unit integrally formed in a trapezoid is configured to be foldable.
It can be easily assembled and disassembled, can be placed on a lifting device such as a temporary elevator in a folded state, and because the constituent members are made of light metal such as aluminum, it is lightweight and easy to transport, and it can be placed on the wall etc. when dismantling. It has practically excellent effects such as not damaging the finished surface.

[Brief description of drawings]

FIG. 1 is an explanatory view of an embodiment of the present invention in use, FIG. 2 is a partial view showing a leg for height adjustment, and FIG. 3 is an enlarged view of a portion A in FIG. The figure shows the central cross-section, No. 5.
The figure is a state diagram when folded. 1 ... Building frame, 1a ... Horizontal frame material 1b ... Posts, 1c ... Reinforcement material 2 ... Legs, 3 ... Fixing tool 4 ... Floor plate, 4a ... Slip prevention 5 ... Mounting plate 5a, 5b, 5c …… Positioning hole 6 …… Arm, 6a …… Hole 7 …… Spindle, 8 …… Lock pin 9 …… Spring, 10 …… Stand 10a …… Length adjustment hole, 11 …… Spindle 12 …… Fixing device, 13 …… Trap

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mitsuya Onodera 3-11-3-405 Narashinodai, Funabashi City, Chiba Prefecture (72) Inventor Yuzo Funato 2-2-232 Higashi-Shisui, Shisui-machi, Inba-gun, Chiba Prefecture (Invention) Person Shinichi Yasumoto 2-18-2, Kyobashi, Chuo-ku, Tokyo Within Meikyo Kyobashi Building Co., Ltd. (72) Inventor Shunsuke Tsurumi 2-16-1, Kyobashi, Chuo-ku, Tokyo Within Shimizu Construction Co., Ltd. (72) Yu Tsuchiya 2-16-1 Kyobashi, Chuo-ku, Tokyo Shimizu Construction Co., Ltd. (72) Inventor Hiroshi Miyano 2-16-1 Kyobashi, Chuo-ku, Tokyo Shimizu Construction Co., Ltd. (72) Inventor Suzuki Ryoji 2-16-1 Kyobashi, Chuo-ku, Tokyo Shimizu Construction Co., Ltd. (72) Inventor Yasuo Uranishi 2-16-1 Kyobashi, Chuo-ku, Tokyo Shimizu Construction (72) Nishiaki Masaaki 2-16-1, Kyobashi, Chuo-ku, Tokyo Shimizu Construction Co., Ltd. (56) References: Actual 63-78642 (JP, U) Actual 1-90942 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. A pair of aluminum having horizontal members and columns, an arm having lock pins attached to the upper ends of the columns, and a height adjusting leg at the lower ends of the columns. Of the building frame, and the upper surface of which is provided with anti-slip at regular intervals, and mounting plates are fixed to both sides of the end, and the tip of the arm is pivotally supported on the mounting plate by a spindle. A pair of building frames are attached so as to be openable and closable, and an aluminum floor plate having a plurality of positioning holes for locking the lock pins is formed on an arc centered on the support shaft, and a fixed space is provided. A hole for length adjustment is formed by opening, the upper end is pivotally supported by a support shaft at substantially the center of the side surface of the floorboard, and the lower end is adjusted by the attachment portion provided on the pillar of the building frame. The two lengths that can be fixed with a fixing tool such as bolts through the holes for The pair of building frames are opened and the lock pins are locked by selecting any of the positioning holes of the mounting plate, and the pair of building frames are horizontal or inclined. While fixing each of them, the two lengths are rotated around the support shaft and any one of the holes for adjusting the length is selected to be fixed to the mounting portion of the pillar of the one building frame by the fixing tool. By doing so, it is possible to form a flat scaffolding scaffolding unit or an inclined scaffolding scaffolding unit.