JPH04102657A - Manufacture of stairway unit - Google Patents

Abstract

PURPOSE:To manufacture a stairway unit with verious steps rapidly and at a low cost by forming an inclined structure member corresponding to a stairway part to be provided, and lining up and fixing a standard size of step members furnishing inclined fixing members. CONSTITUTION:Step members 21 and 22 being stocked beforehand are prepared to be the number of steps where the steps 21 and 22 of a stairway 1 are set. Then, beams 11 to 14 corresponding to the form and the dimension of the stairway 1 are manufactured. Then, a framework of the stairway 1 is set to the setting position of the stairway 1 by using the beams 11 to 14 and the like, and the step members 21 and 22 are lined up to this inclined part. And footboards 26 are installed on the upper sides of the step members 22 to complete the work as for the stairway 1. Consequently, the step members 22 are standardized to reduce the cost by a mass production, the manufacturing of the whole stairway 1 is made easier, and the manufacturing of various stairways 1 can be coped with easily.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for manufacturing a unit type staircase, and can be used for stairs in buildings such as prefabricated houses.

[Background technology: Various types of stairs, such as straight stairs and round stairs, have been used in houses and buildings.

Appropriate types and dimensions of these stairs are selected depending on the structure of the building, the arrangement of the stairs, etc.

On the other hand, in prefabricated houses, etc., pillars and straw mats are made into units to reduce the amount of on-site construction, and steps are also being made into units. As shown in FIG. 9, such unit staircases include so-called stringers 51A, 5 whose slanted upper surfaces are serrated.
Stair units 53 and 54 are assembled in advance according to the type of stairs using stair members 1B and step board members 52A and 52B, and these stair units 53 and 54 are attached to predetermined stair portions 55.
56 to form a staircase is a common method.

[Problem to be solved by the invention]

However, in this method of manufacturing stairs, each series of stairs is made into a unit, so the stair unit h53
．． 54 etc. can only be used for specific types.

Therefore, it is necessary to prepare stair units that are suitable for various types of stairs, which inevitably complicates the manufacturing process.

In particular, it is practically difficult to keep a variety of stair units in stock at all times, and stair units must be manufactured as needed for each type, which takes time to prepare, and it is difficult to reduce costs through mass production. It becomes difficult.

An object of the present invention is to provide a method for manufacturing unit stairs that can quickly and inexpensively manufacture a variety of stairs.

[Means to solve the problem]

In the present invention, step members having standard dimensions having inclined fixing portions are formed in advance, an inclined structural member corresponding to the stair portion to be installed is formed, and the step members are arranged and fixed to this inclined structural member. This is a method for manufacturing stairs.

Here, the step plate member has integrally a step plate portion serving as a tread surface and a fixing portion, and is formed so that the step plate portion becomes horizontal when the fixing portion is attached to the inclined structural member. Preferably.

[Effect]

According to the present invention, by separating the inclined structural material and the step board member, it is only necessary to manufacture the inclined structural material according to the stair portion to be installed, and the standardized step board member can be manufactured. It will also be possible to share different stairs. This makes it possible to reduce costs through mass production of step plate members, and enables rapid response by stocking.

In addition, for example, by using a stepped plate member that has a stepped plate part integrally formed with an inclined fixed part and forms a step shape by itself, the inclined structural member can be used like a conventional stringer. This eliminates the need to form serrated portions that support tread members or jig-sag groove-like tread support portions found in stringer-type stairs, making it easier to manufacture sloped structural members depending on the installation site. Therefore, in addition to the fact that the step plate members can be shared, the overall manufacturing becomes easy, and it becomes easy to adapt to various types of stairs, thereby achieving the above-mentioned purpose.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

1 and 2, a first embodiment of the invention is shown. The staircase 1 in this embodiment is a) so-called round staircase, and has a landing 2 in the middle part, and a lower staircase part 3 is connected below the landing 2, and an upper staircase part 4 is connected above the landing 2. There is.

Among these, the lower staircase part 3 has girders 11 as inclined structural members.
12, and the upper staircase part 4 has girders 1.1 as inclined structural members. ．．
3.14. These girders 11 to 14 are formed in advance to form the basic framework of the stair sections 3 and 4 according to their respective installation locations.

That is, the girders 11, 12 are arranged at an angle on both sides of the staircase part 3, their lower ends are fixed to the foundation 5, and the upper ends of the staircase part 3 are connected to each other by threads 15. Further, the upper end of the girder 1.1 extends horizontally along the edge of the landing 2, and the tip of this extended portion 11A is fixed to the small pillar 16.

Digit 1.3. 14 are arranged at an angle on both sides of the staircase part 4,
The upper end thereof is fixed to a thread 17 under the second floor floor, and the lower end portion of the staircase portion 4 is connected to the thread 15 which connects the upper end side of the girders 11 and 12 mentioned above. Further, the lower end of the girder 13 extends horizontally along the edge of the landing 2, and the tip of this extended portion 13A is fixed to the small pillar 18.

In addition, the small pillars 16 and 18 are connected with the thread 19, and the extension part I
A landing 2 is formed by covering a rectangular frame made of LA, 1.3A and 1ff15.19 with flooring material 6.

These digits II, 12 and 13. 14, there is a stepped plate member 21. , 22 times have been passed.

The stepped plate member 21 is arranged at the top of the inclined portion of each of the girder 11.12 and the girder 13.1.4, and includes a substantially horizontal stepped plate portion 21A and an inclined fixing portion 21B. There is. The step plate portion 21A is continuous with the floor material 6 of the landing 2 or the floor 7 of the second floor, and the fixed portion 21B is continuous with the floor material 6 of the landing 2 or the floor 7 of the second floor, etc., and the fixed portion 21B is connected to the girder 11 to 1.
It is bolted to the 4 side and is set to be continuous with the stepped plate members 22 arranged below.

The step plate member 21 is formed in advance to a standard size, and as shown in FIG. A recessed plate portion 24 extending downward is provided. A groove 23A that is long in the width direction is integrally formed in the stepped plate portion 23 by bending the stepped plate portion 23 or the like.

The bottom of this groove 23A is inclined with respect to the stepped plate part 23 and forms a fixing part 25. Bolt holes 25 are provided at both ends of the fixed part 25.
A is provided, and the step plate member 22 or the girder 11 is provided with the bolt hole 25A.
- 14, and the stepped plate portion 23 is held substantially horizontally. A step board 26 is placed on the upper surface of each step board portion 23, and the step board 26 is fixed to the step board member 22 by driving nails into both ends.

Note that the bolt holes 25A of each stepped plate member 22 are adapted to allow bolts to be inserted loosely, so that the position of the stepped plate member 22 relative to the beams 11 to 14 can be adjusted.

Returning to FIG. 1, the lower staircase section 3 of this embodiment has five steps, while the upper staircase section 4 has nine steps. As a result, a total of 14 stairs consisting of the stairs 3, landings 2, and stairs 4
A staircase l is constructed around the steps.

Next, the manufacturing procedure of the staircase 1 according to this embodiment will be explained.

First, girders 11 to 14 are manufactured according to the type and dimensions of the staircase 1. Further, step members 21 and 22 are stocked in advance so as to correspond to the number of steps of the part of the staircase 1 where the step members 21 and 22 are installed.

Subsequently, the framework of the staircase 1 is assembled with girders 11 to 14 etc. at the installation location of the staircase 1, and the step plate members 21.2 are attached to these inclined parts.
Arrange 2. Then, the steps 26 are attached to the upper surfaces of the arranged step board members 22, respectively, and the work related to the stairs 1 is completed.

According to this embodiment as described above, there are the following effects.

That is, since the stepped plate members 22 are standardized and can be easily manufactured by bending, etc., it is possible to reduce costs by mass producing the stepped plate members 22, and it is possible to quickly respond by stocking. Moreover, since the girders 11 to 14 formed according to the stair portion to be installed and the step plate members 21 and 22 are made separate, the step plate members 21 and 22 are made separately.
22 can be shared by different stairs. These allow the staircase 1 to be manufactured quickly and at low cost.

Further, the step plate member 22 is provided with the step plate portion 23 and the fixing portion 25 integrally, so that the step plate member 22 can be fixed to the girders 11 to 14 by the fixing portion 25 inclined with respect to the step plate portion 23. Therefore, the girders 11 to 14 do not require conventional support parts such as string girders or zig-sag grooves, and the girders 11 to 14 can be manufactured by simple processing such as bending, and the step plate members 21.2
In addition to the fact that two staircases can be used in common, the entire staircase can be manufactured easily, and it is possible to easily respond to the manufacture of a variety of stairs.

FIG. 4 shows a second embodiment of the invention. This embodiment basically has the same structure as the first embodiment, or differs in the number of steps of the upper and lower staircase parts 3 and 4, and the step plate member 2
In this example, a stepped plate member 30 having a different shape from that of No. 2 is used.

That is, the lower stair portion 3A and the upper stair portion 4A of the stairs IA of this embodiment both have seven steps, and step plate members 30 are arranged in each of the girders 11 to 14 according to the number of steps.

As shown in FIGS. 4 and 5, the stepped plate member 30 includes a substantially horizontal stepped plate portion 31, and support portions 32 extending downward from the four corners of the stepped plate portion 31. A and 32B are provided integrally. These support members 32A, 32B
are bent outward at an angle corresponding to the inclination of the stringers 1.1-14. These bent parts become the fixed parts 33A and 33B, and these fixed parts 33
A bolt hole 34 is formed in each of A and 33B.

Here, the stepped plate member 30 can be stacked on top of a plurality of other stepped plate members 30 during transportation or storage. Further, the step plate members 30 arranged on the girder 11-14 and adjacent to each other have their fixing parts 33A and 33B overlapped with each other, and in this state, bolts passing through both bolt holes 34 are attached to the girders 11 to 14. Fixed.

In this embodiment as well, the same effects as in the first embodiment can be obtained, and the tiered plate members 22 are not bulky due to being stacked one on top of the other, making it easier to carry them to the site or transport them by truck, etc. It saves space and is convenient to handle.

FIG. 6 shows a third embodiment of the invention. In this embodiment, the circular stairs 1 and I of the first and second embodiments are
A straight staircase IB is used instead of A, and step plate member 22.30
A stepped plate member 35 is used instead.

That is, between the - floor and the second floor, there are girders 11. B, 12B is passed and digit 11B is passed.

A plurality of step plate members 35 are arranged in 12B, thereby forming a straight staircase IB.

As shown in FIGS. 6 and 7, the stepped plate member 35 is configured such that the corner side of the cross-sectional shape is fixed to the girders 11B and 12B. One side extending substantially horizontally from this corner is a stepped plate portion 36, and one side extending upward from the corner is a hooked plate portion 37. Both ends of the stepped plate portion 36 are
The side of the insertion plate part 37 is cut out in a square shape, and
It is bent downward at an angle corresponding to the inclination of the beams 11B and 1.2B. These notches or girders 11B, 12
This is a fixing part 38 to B. The fixed part 38 has a girder 11
A bolt hole 39 for attachment to B and 12B is formed.

Further, the distal end side of the stepped plate portion 36 is bent downward to form a protruding piece portion 40. On the other hand, on the back side of the push-in plate part 37,
A fitting member 41 having a cross-sectional shape is attached by welding or the like, thereby forming a groove 42 that fits into a protruding piece 40 of another stepped plate member 35. By fitting the projecting piece 4° into the groove 42, adjacent stepped plate members 35 can be interconnected.

In addition, at the upper end of the arrangement of the plurality of step plate members 35, there is provided a step plate member 35A, which is either the wedge plate part 39 or the omitted step plate part 39 from the step plate member 35.
A recessed plate member 35B, which is omitted from the stepped plate member 35 and the stepped plate portion 3G, is arranged at the lower end.

In this embodiment as well, the same effects as in the first and second embodiments can be obtained, and since the plurality of step plate members 35 are integrated by interconnecting the step plate members 35,
The mounting positions of the stepped plate members 35 relative to the girders can be adjusted all at once, which saves time and effort and reduces adjustment time compared to the case where the stepped plate members are moved one by one.

It should be noted that the present invention is not limited to the above-described embodiments, but also includes the following modifications.

That is, in each of the above embodiments, the stepped plate member 22.30°3
5 each had one stage, but they may also have multiple stages.

In addition, the type of step board member is limited to one type. For example, multiple types of step board members with different numbers of steps are prepared in advance, and the step board member is appropriately selected from these to match the number of steps of the staircase part. (Furthermore, each step board member 22, 30, 35, etc. may have two types, long and short widths, and the types of step board members prepared in advance may correspond to that number. It may be set as appropriate.

In addition, the step plate members 22, 30, 35, etc. have two girders 11.1.
2 or digit 13. The hook is not limited to one that is passed between 14, etc., but for example, as shown in FIG. In short, the number of girders on which the step plate members are arranged may be appropriately selected depending on the structure, width, etc. of the stairs.

Further, the shape of the stepped plate members 22, 30, 35 is not limited to that shown in each of the above embodiments. For example, a steel plate or the like is bent to have a U-shaped cross section, and The sides may be a stepped plate portion and a stub plate portion, respectively, and the lower side of the U-shape may be inclined to serve as a fixing portion.

Note that the step plate members 22, 30, and 35 can be adapted to various types of stairs. For example, the step plate member 22 can be used to form the straight staircase IB of the third embodiment, or the step plate member 35 can be used to form the straight staircase IB of the second embodiment. Circling stairs 1. A may be formed (in addition, these step members 22, 30, 35 may form another type of staircase not shown in any of the embodiments described above).

In short, the invention is applicable to a wide variety of staircases of different types and dimensions.

〔Effect of the invention〕

As described above, according to the method for manufacturing unit stairs of the present invention, various stairs can be manufactured quickly and at low cost.

[Brief explanation of drawings]

1 to 3 show a first embodiment of the present invention, and FIGS. 1 and 2 are a side view and a plan view showing the same embodiment, and FIGS.
The figure is an exploded perspective view showing the stepped plate member used in the same example.
4 and 5 show a second embodiment of the present invention;
The figure is a side view showing the same embodiment, FIG. 5 is a perspective view showing the stepped plate member of the same embodiment, FIGS. 6 and 7 show the third embodiment of the present invention, and FIG. 6 is the same embodiment. FIG. 7 is an exploded perspective view showing a stepped plate member of the same embodiment; FIG. 8 is a perspective view showing a modification of the present invention; FIG. 9 is an exploded perspective view showing a conventional example. . 1, ,1. A.1. B...Stairs, 11-14.
IIB, 12B... Girder that is a sloped structural member, 22.3
0.35.43... Step plate member, 25.33A, 33
B. 38, 44... fixed part.

Claims (1)

[Claims] (1) Step board members having standard dimensions having an inclined fixing portion are formed in advance, a sloped structural member corresponding to the stair portion to be installed is formed, and the step board members are arranged and fixed to this sloped structural member. A method for manufacturing a unit type staircase characterized by: