JP2001279897A - Built-up type outdoor staircase - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a built-up type outdoor staircases which can be simply built up at site. SOLUTION: Many staircase frames 12 framed by front and rear frames 13 and right and left side plates 16 are fixed on a pair of opposing stringers 10 by screws 22 from frame inside sides, respectively, and then a tread panel 21 is fitted and provided in each staircase frame 12 to form a staircase tread 11 so as to constitute the staircase C.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a staircase, and more particularly to a staircase that can be assembled on site.

[0002]

For example, Japanese Patent Application No. Hei 10-3
As in 49399, the applicant forms a greening garden with artificial soil on the roof surface of a garage or the like, or forms a deck space by installing deck materials, thereby making it possible to form a stand-alone type with a rooftop stage. Propose a structure.

[0003] In this case, it is convenient and convenient to install a stair as a means for elevating the rooftop so that people can enter and exit the rooftop stage. If a steel staircase used as an emergency staircase or the like to which a tread plate is welded is used, the work tends to be complicated, for example, a lifting machine is required for transport and installation.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to solve the above-mentioned problems. The present invention can be used in general, including the above-mentioned independent structure, and can easily and reliably assemble on site, and at the same time reduce the structural strength. It is an object of the present invention to provide a staircase for outdoor installation which can be sufficiently secured.

[0005]

According to the present invention, there is provided a staircase in which a plurality of stair steps including a step frame and a step panel are installed between a pair of opposing stair girders. The tread frame is framed by front and rear frames of high rigidity frame material and right and left side plates of a thick plate material which is mounted on the front and rear frames and fixed with screws from the outside, and at least opposing directions to the opposing surfaces of the front and rear girders. The supporting plate is provided with a supporting projection protruding at the same height in the vertical direction, and is formed in a flat rectangular shape, and the tread frame is fixed between the pair of stair girders by screwing from the opposing surfaces of the left and right side plates in the tread frame. A staircase for outdoor installation is characterized in that it is interposed and fixed, and the tread panel is fitted and installed on the tread frame on the support projection thereof. the above In order to more securely mount and install the panel panel, the panel panel is fixed to the panel frame by screwing the panel panel from below the supporting protrusion of the panel frame. The outdoor staircase of the prefabricated type according to claim 1, wherein
In order to stably and reliably fix the stair treads for a long period of time, the invention described in (1) above requires fixing the intervening fixation of the tread frame between the stair girders by moving the left and right side plates of the tread frame forward and backward from the front and rear frames. A screw hole is provided at a position near the projecting piece and the front and rear frames so as to sandwich the front and rear frames, and a tap screw is screwed into the step girder from the screw hole. The outdoor stairs of the pre-installed type according to claim 1 or 2, wherein the stair steps are prevented from slipping even if they receive rainwater to improve safety. 4. The assembly according to claim 1, wherein said step board frame and stair girder are made of metal and said step board panel is made of wood so as to be suitable as a stair for outdoor installation. Outdoor stairs,
These are the gist of the invention, respectively, and are the means for solving the above problems.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with reference to the drawings, in which A is an independent structure having a rooftop stage B on which a plant can be planted and used as a green garden. Garage made of metal, especially aluminum
Reference numeral 1 denotes the support, reference numeral 2 denotes a base frame for forming the roof stage B on the support 1, reference numeral 3 denotes the base frame 2, and the artificial soil 4 as the roof stage B is filled. The stage frame C, which is configured to be able to be set up, is connected to the ground surface and the stage frame 3 of the rooftop stage B in this example, and is provided with a stair support 7.
The outdoor installation stairs, which are also made of metal, especially aluminum, are installed between the landing hall 6 and the landing hall 6 supported by the same.

The outdoor installation stairs C are stairs in which a number of stair steps 11 composed of a tread frame 12 and a tread panel 21 are installed between a pair of opposing stair girders 10, and the tread frame 12 is made of a highly rigid frame material. It is framed by the front and rear frames 13 and the left and right side plates 16 of a thick plate material which is mounted on the front and rear frames 13 and fixed with screws 22 from the outside, and at the same height position at least on the opposing surfaces of the front and rear beams 13 in the opposing direction. The tread frame 12 is interposed between the pair of stair girders 10 by being formed in a flat rectangular shape with a support protruding piece 15 protruding from the pair of stair girders 10 by fixing the screws 22 from the opposing surfaces of the left and right side plates 16 of the tread frame 12 respectively. The tread panel 21 is fixedly mounted on the tread frame 12 and mounted on the support protrusion 15 thereof, and the tread panel 21 is fitted and installed.

In the present embodiment, the pair of staircase girders 10 has a length of about 4.2 m so as to be installed, for example, at an angle of 45 degrees on a landing 6 having a height of about 2.5 m from the ground surface. , About 5 cm in width and about 20 cm in height, made of long metal, especially made of extruded aluminum, and having the same shape in a pair that has the strength as a girder by making the cross section hollow in a vertically long rectangle It is based on a high-rigidity frame material for common use of members.

The front and rear frames 1 forming the tread frame 12
3 has a width and a height which are substantially equal to the above-mentioned steps so that the step board frame 12 is constructed and fixed between the above-mentioned pair of stairs girders 10 installed at an interval of about 70 to 80 cm, for example. It is made of a short metal having a length of several centimeters, particularly made of extruded aluminum, and has a rectangular or rectangular hollow section, and is made of a highly rigid frame material suitable for receiving a human load. A plurality of, for example, a pair of upper and lower tapping holes 14 are provided, and in the present example, the supporting protrusions 15 having the same height protrude from the lower end so that the lower surface extends in the facing direction.

In this embodiment, the front and rear frames 13 have a width of about 3c.
m, a rectangular hollow with a height of about 3.5 cm, and a projecting width of the support protruding piece 15 of about 2 cm. In addition, the members are shared.

The left and right side plates 16, which also form the tread frame 12, are provided with projecting pieces 17 projecting forward and backward from the front and rear frames 13.
Screw holes 18, 19, and 2 are provided near the projecting piece 17 and the front and rear frames 13 so as to sandwich the front and rear frames 13.
0, that is, in this example, the left and right side plates 16 have a short length of, for example, about 23 cm and a height of about 4 cm, and have V-shaped or U-shaped protrusions at both ends in the longitudinal direction. It is made of a metal, for example, a thick metal plate, such as a thick steel plate, an aluminum casting, or a thick aluminum plate, on which the piece 17 is formed.
8. Upper and lower screw holes 1 for the frame with front and rear frames 13 inside each
9. Screw holes having four through holes for screw insertion on one side in the longitudinal direction by a screw hole 20 for fixing the stair girder 10 at a position sandwiching the screw hole 18 of the protruding piece 17 and the front and rear frames 13 on the inside thereof. Are arranged so as to be located at the apexes of the rhombus, respectively, and a total of eight screw holes are provided symmetrically in the longitudinal direction.

The tread frame 12 is constructed by arranging front and rear frames 13 at predetermined intervals, for example, at an interval of about 20 cm in inner dimension, and abutting left and right side plates 16 on both ends in the longitudinal direction in abutting manner. Tap screws 22 are respectively inserted from the outside of the left and right side plates 16 through the upper and lower screw holes 19 for frame assembly with the front and rear frames 13.
By screwing into the tapping hole 14 of
The frame is formed into a rectangular shape, and the supporting projection 17 is provided at the lower end of the same height in the opposite direction so as to protrude in the facing direction. The screw head is the left and right side plate 1
6, the screw head forms a gap between them when the tread plate frame 12 is fixed to the staircase girder 10, which will be described later, so that the fixing is not hindered.

The tread panel 21 is made of wood in this embodiment. The tread panel 21 of this embodiment uses, for example, rice cedar, and is subjected to a treatment such as preservation to ensure water resistance and durability. The tread panel 21 of this embodiment is provided with the above-described tread frame 12.
Each of the single thick plates is dimensioned so as to fit with the front and back sides, so that the front and back sides can be used freely.

The pair of stairs 10 and the tread frame 1
2 and the outdoor installation stairs A using the tread panel 21 are fitted and installed by interposing and fixing the tread frame 12 to the pair of stairs 10 and mounting the tread panel 21 on the support projection 15. For example, a predetermined number of tread frames 12 are respectively interposed and fixed to a pair of stairs 10 to form a stair frame composed of the stairs 10 and the tread frames 12, and this is placed between the ground surface and the landing 6 described above. Then, the tread panel 21 can be fitted to each tread frame 12 and then assembled.

To interpose and fix the tread frame 12 to the pair of stairs 10, the outer surfaces of the left and right side plates 16 are brought into contact with the opposing surfaces of the pair of stairs 10, and from the opposing surfaces, that is, the inner surfaces, This is performed by screwing a tap screw 22 into the staircase girder 10 through screw holes 18 and 20 for fixing each girder material at the position of the protruding piece 17 and the position sandwiching the front and rear frames 13. The frame 12 is fixed to the stair girder 10 at two places on each side of the left and right side plates 16 and at a total of four places on both sides in the longitudinal direction, and the tread frame 12 or the stair tread 11 having the tread panel 21 fitted thereto. It is intended to eliminate the possibility of the fall and to perform a firm fixation.

At this time, in the outdoor installation stairs A of this example,
The tread panel 21 is fitted and fixed to the tread frame 12 by fixing the tread panel 21 to the tread frame 12 from below the support protrusions 15 of the tread frame 12, and the tread panel 21 is installed later. In the assembling method according to the present embodiment, the screws 23 are fixed to the respective supporting projections 15 by using round wood screws at both ends in the longitudinal direction of the respective supporting projections 15 after the respective tread panel panels 21 are fitted and installed.
This is performed at a location, thereby eliminating the possibility that the tread panel 21 may come off due to wind pressure as the outdoor stairs A.

In the figure, reference numeral 24 denotes a stair handrail standing and fixed to one side of the stair girder 10, reference numeral 25 denotes a column thereof, and reference numeral 26 denotes a handrail cap.

Although the illustrated example is as described above, the supporting projections are also provided on the left and right side plates so as to be at the same height position as the front and rear girders in the facing direction, and the tread panel is made of metal. A panel made of resin or the like, for example, a thick plate having a non-slip surface formed with a hollow, solid, or outer leg with downwardly directed legs, etc. When fixing the tread panel to the tread frame, the front of the front and rear girders In the practice of the present invention, including the steps of screwing or bonding with an adhesive from the back, concrete materials such as stair girder, stair tread, stair frame, front and rear girder, left and right side plate, tread panel, etc. Shape, structure, their relationship, addition to these, assembly procedure or method,
The use as an outdoor staircase and the like can be of various forms without departing from the gist of the present invention.

[0019]

The present invention is configured as described above.
The invention according to claim 1 can be generally used, including a case in which an assembling type independent structure having a rooftop stage is used for ascending and descending a rooftop stage. It is possible to provide a prefabricated outdoor staircase that has sufficient strength.
According to the second aspect of the present invention, it is possible to more reliably perform the fitting installation of the tread panel, and to eliminate the possibility that the tread panel is detached by wind pressure as an outdoor installation stair. According to the invention described in the above, the stair tread can be fixed stably and reliably for a long period of time and can be easily performed by screw fixing. Thus, safety can be improved, and the stairs can be made suitable for outdoor installation.

[Brief description of the drawings]

FIG. 1 is a perspective view of a garage in which outdoor stairs are installed for elevating a rooftop stage.

FIG. 2 is a side view of the outdoor installation staircase of FIG. 1;

FIG. 3 is an exploded perspective view showing a relationship between front and rear girders and left and right side plates of the tread frame.

FIG. 4 is a longitudinal sectional view showing the relationship between the front and rear girders and the tread panel.

FIG. 5 is a perspective view showing the relationship between the front and rear spars and the tread frame.

FIG. 6 is a partially enlarged perspective view of FIG. 5;

FIG. 7 is a partially enlarged perspective view showing a relationship between a tread frame and a tread panel.

[Explanation of symbols]

 A Garage B Rooftop stage C Outdoor stairs 10 Stair girder 11 Stair treads 12 Stair frames 13 Front and rear frames 15 Support projections 16 Left right side plate 21 Tread plate panel 22 Screw

Claims (4)

[Claims] 1. A staircase in which a large number of stair steps including a tread frame and a tread panel are installed between a pair of opposing stair girders. It is framed by the left and right side plates of the thick plate material to be screw-fixed from the outside, and is formed into a flat rectangular shape with supporting projections projecting at least at the same height in the facing surfaces of the front and rear girders in the facing direction. Then, the tread frame is interposed and fixed between the pair of stair girders by screw-fixing the opposing surfaces of the left and right side plates in the tread frame, and the tread panel is mounted on the tread frame on the support protrusion thereof to mount the tread panel. An assembling outdoor staircase that is fitted and installed. 2. The assembly type outdoor according to claim 1, wherein the tread panel is fixed to the tread frame by screwing the tread panel from under the support protrusion of the tread frame. Installation stairs. 3. The step board frame is interposed and fixed between stair girders by forming left and right side plates of the step board frame with protruding pieces projecting forward and backward from the front and rear frames, and making the protruding pieces and the front and rear frames close to each other. The staircase according to claim 1 or 2, wherein a screw hole is provided at a position sandwiching the front and rear frames, and a tap screw is screwed into the staircase from the screw hole. . 4. The assembly type outdoor stairs according to claim 1, wherein said tread frame and stair girder are made of metal, and said tread panel is made of wood.