JPH042748B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an assembly staircase for use in mobile houses used at construction sites, event halls, and temporary housing, and in particular, for quick assembly and storage. The present invention relates to an assembly staircase that can be assembled easily and work can be done quickly.

[Conventional technology]

Temporary houses and temporary housing have been widely used for construction sites, event venues, riverbeds, etc. For this reason, mobile houses that can be carried and used on trucks, etc. are widely used, and in order to increase the extension area compared to the usable area, mobile houses are also frequently used as two-story buildings. was. However, when a two-story mobile house is used, stairs must be provided in order for people to access the second floor from the ground level. For this reason, in the past, mobile houses were used on site using attachable ladders, supports, etc., but by attaching stairs to a two-story mobile house or assembling each part, access to the second floor was possible. I was assembling a staircase that I could do. However, with the stairs used in conventional two-story mobile houses, the parts must be assembled at the location where the mobile house is installed and attached as stairs to the mobile house, which requires labor to assemble and clear the stairs, and the work is not quick. Even if it is easy to remove a mobile house with a crane, etc., it takes a lot of time to assemble and disassemble the stairs, and it takes time to move the mobile house from one installation site to another. There were flaws. Also,
In conventional prefabricated mobile houses, many parts of the staircase used in the two-story mobile house are often lost, each part is lost after being used many times, and it is often impossible to reuse it. It was an inconvenience.

[Problem that the invention seeks to solve]

In the conventional stairs used for two-story mobile houses, many parts were separated and transported to the installation site, where they were assembled by tightening bolts and nuts. It took longer to assemble the stairs than it took to install them using a crane, resulting in lower work efficiency. Normally, it is desirable for mobile houses to shorten the time it takes to move from site to site, and the time it takes to assemble and dismantle on-site means the time it takes to actually move the mobile house and use it at the next site. The equipment was not used efficiently because the length of time was shortened.

[Means for solving problems]

The present invention includes a base having at least four or more vertically extending columns, a frame having at least four pipes combined so as to be able to move up and down above the base, and a frame body having a horizontal support within the base. a lower step that can move in the direction and appear and retract; an upper step that is installed inside the frame and can be placed in a straight line with the lower step; and an upper step that is at the top of the frame and can swing up and down A prefabricated house characterized in that the lower step is stored in the base, the landing board is folded vertically relative to the frame, and the frame is reduced in the direction of the base for storage. It provides:

[Effect]

In the present invention, during transportation, the lower step is housed in the base, the landing board is made parallel to the frame, and the frame is slid toward the base to shorten the height and create a three-dimensional shape. The lower step and upper step are housed inside a frame-shaped frame, so there is no need to tighten bolts or nuts, and the step can be placed on the truck bed and transported as is.At the site, the frame can be lifted from the base and transported. To provide an assembly staircase that can be easily used for a two-story mobile house by pulling out the lower step from the base.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings.

FIG. 1 shows a state in which a prefabricated staircase according to an embodiment of the present invention is actually used.
and 2 have the same shape, and each has a metal fitting 4 on the top for hanging the crane, and this rectangular mobile house can be hung on the loading platform of a truck by hooking a wire to the metal fitting 4. It is something that can be caught and moved. in this case,
After lowering the prefabricated house from the truck and fixing it on the ground at the installation site, a mobile house 2 of the same shape is lowered onto the mobile house 1 using a crane to form a prefabricated house with two stories above and below. It is something that can be done. There is a door 5 on the side of the mobile house 1, and a door 6 on the side of the mobile house 2 as well. As it is, workers can go in and out of the mobile house 1 below by opening the door 5, but the door 6 of the mobile house 2, which is on the second floor above, is floating in the air, so workers can go in and out by opening the door 5. I can't do it. For this purpose, by using the prefabricated house 3 in an assembled state, the worker can enter and exit through the door 6 of the mobile house 2 by stepping up the steps.

Next, a detailed explanation of the assembly staircase 3 will be given below in FIG.

U-shaped mount 11 placed on the ground
is assembled by welding with square pipes, and the pillars are fixed in the vertical direction at each of the four corners of this mount, and this mount 11, pillar 1
2 constitutes a base 13. Said pillar 1
A square pipe 14 that can be inserted vertically is inserted into each of the square pipes 2, and the upper end of each square pipe 14 is connected to a frame 15 connected in a U-shape. A frame 16 is formed. The base 13 and the frame can be slid up and down to change the spacing, and the spacing between each column, the column 12, and the square pipe 14 is fixed by a pin 17 that can be inserted or removed. It is something that can be done. A pair of diagonal pillars 18 formed of square pipes are fixed at a distance between the top of the U-shaped back of the frame and the lower end of the square pipes that open to the front. Steps 19 are installed between these diagonal pillars 18 at equal intervals in the vertical direction and in a horizontal direction. Furthermore, a fixing hole 20 for attaching a handrail is opened in the upper part of the frame 15. Next, a column 22 is fixed vertically to the inner corner of the U-shaped step mount 21 that can be moved horizontally inside the mount 11, and the tip of the step mount 21 and the column 22
A pair of diagonal pillars 23 are fixed diagonally between the upper end of the . The diagonal pillars 23 are spaced apart from each other, and steps 24 are fixed between the diagonal pillars 23 at intervals in the vertical direction and positioned horizontally. These step mounts 21, pillars 22, diagonal pillars 23, and steps 24
A lower step platform 25 is formed by this. Further, the rear part of the frame 15 has a landing board 2 having a planar shape.
6 are connected by a hinge (not shown) so as to be rotatable in the vertical direction, and mounting holes 27 are opened at the four corners of this hinge for attaching a handrail. A brace 28 is provided between the pillar 14 and the landing board 26.
are removably connected, and this brace 28 can be rotated around the end on the column side, and the landing plate 26 side can be removed. The handrail 29 formed from a round pipe is the frame 15.
The lower part of the handrail 30 assembled in an L-shape can be assembled by inserting its lower part into the mounting hole 27. FIG. 2 shows the assembled staircase.

Next, the operation of this embodiment will be explained.

Figures 1 and 2 show that by assembling a prefabricated house and stepping up steps 24 and 19 in sequence,
A person can climb up from the ground to a landing board 26, and can go in and out of the mobile house 2 by opening and closing a door 6 to the mobile house on the second floor from the landing board 26. In the state shown in FIG. 2, the movable houses 1 and 2 are used in the installed state, and when the prefabricated house 3 is to be moved, it must be moved in a reduced and folded state. This is because in the state shown in FIG. 2, the volume becomes large and it cannot be placed on a truck or the like as it is. FIG. 3 is a side view showing the prefabricated house in FIG. 2 in an assembled state.

Next, the order of storing the assembled stairs 3 will be explained with reference to FIG. 4 and subsequent figures. First, move the lower step stand 25 toward the inside of the base 13, and
The outer circumference of the step mount 21 is positioned so as to be in contact with the inner circumference. As a result, the lower step stand 25 is housed inside the base stand 13, and the diagonal pillar 2 that was protruding diagonally
3 no longer protrudes from the base 13. Next, the hand rub 29 is cut out from the attachment hole 20, and at the same time, the hand rub 30 is pulled out from the attachment hole 21 to remove the respective hand rubs 29 and 30. And the muscle 2
8 and the landing board 26, and connect the square pipes 14 and 1 so that the brace 28 is parallel to the frame 15.
Fix it between 4. Then, the landing board 26 is folded downward, the plane of the landing board 26 and the direction of the square pipe 14 are aligned, and the landing board 26 is positioned on the same plane as the outer periphery of the frame 16. This state is the state shown in FIG. Then, by removing the pins 17 and releasing the connection between the support 12 and the square pipe 14, the inner periphery of the square pipe 14 is slid on the outer periphery of the support 12, and the frame 16 is moved downward. The lower ends of each are moved to the upper surface of the mount 11. As a result, the heights of the base 13 and the frame 16 are reduced, resulting in the state shown in FIG. 5. In the state shown in FIG. 5, the upper diagonal column 18 approaches above the lower diagonal column 23, and they are positioned parallel to each other, and the landing board 26 is positioned parallel to the length direction of the square pipe. The volume is less than half of the initial state shown in Figure 2. When this state is reached, the assembled staircase can be lifted up with a crane or the like, placed on a truck, and moved. FIG. 6 is a side view showing the assembled house in FIG. 5 in a reduced size and stored state. In addition, it must be transported to the installation location using assembly stairs,
To make it ready for use, it can be assembled by following the steps shown in FIG. 5, FIG. 4, and FIG. 2 in the reverse order.

〔Effect of the invention〕

Since the present invention is constructed as described above, when it is used, it can be easily assembled by raising the landing board and lifting the frame to increase its height and pulling out the lower step base. It can be used quickly when personnel enter and leave the second floor of a mobile house. In addition, when moving, contrary to the above, the volume can be quickly reduced and the removal work can be performed, so the work time is shortened and the volume is small, so it is convenient to move without being bulky.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram showing a state in which a prefabricated staircase according to an embodiment of the present invention is used with a mobile house, Fig. 2 is a perspective view showing the prefabricated house in an assembled state, and Fig. 3 is the same as the above. Fig. 4 is a perspective view showing the state in which the lower step is stored and the landing board is folded, and Fig. 5 is a perspective view showing the state in which the frame is pulled down and its height is reduced. ,
FIG. 6 is a side view showing the state in FIG. 5. 3... Assembly stairs, 13... Base, 16... Frame, 19... Step, 24... Step, 25
...Lower step platform, 26...Landing board.

Claims (1)

[Claims] 1 A base having at least four or more vertically extending columns, a frame having at least four pipes combined so as to be able to move up and down above the base, and a frame body that can be moved horizontally within the base. a lower step that can be moved in and out, and an upper step that is installed within the frame and can be arranged in line with the lower step;
It consists of a landing plate that is the upper part of the frame and can swing up and down at the upper end of the upper step.The lower step is housed in the base, and the landing plate is attached to the frame.
An assembled staircase characterized by being stored by folding vertically and reducing the frame body toward the base.