JPH0497068A - Production of unit type stair - Google Patents

Abstract

PURPOSE:To reduce production cost, by previously forming treads and supporting members of the standard sizes and arranging and fixing the tread members at a slant structure through the supporting members. CONSTITUTION:Girders 11, 12 are provided in a lowerside stair 3 as a slant structure and girders 13, 14 are provided in a upperside stair 4 to fix at a foundation 5. And the upper end of the lowerside stair 3 is connected with a beam 15. And a plurality of tread plates 21 of standard sizes are suspended over the girders 11, 12 and the girders 13, 14 to fit them via the supporting member 22. Next, tread plates 26 are fitted on the upper face of respective steps of the tread plates 21 attached thereto to form the stairs. In this way, various stairs can be produced with inexpensive cost.

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]

BACKGROUND ART Various types of stairs, such as straight stairs and round stairs, have been used in houses and buildings.

Appropriate formats 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, pillars, beams, etc. are made into units to reduce on-site construction work, and staircases are also made into units. As shown in Fig. 8, such a unit type staircase is as follows.
A so-called stringer girder 31A whose inclined upper surface is serrated,
31B and step plate members 32A, 32B, etc., are assembled in advance according to the type of staircase, and these stair units 33 and 34 are assembled into a predetermined stair portion 3.
A common method is to form a staircase by fixing the location at 5.36.

[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 33
．． 34 etc. can only be used for specific types and dimensions.

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 for each type as needed, which takes time to prepare and reduces 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 and supporting members having standard dimensions are formed in advance, a sloped structural member corresponding to the stair portion to be installed is formed, and the step members are arranged on this sloped structural member via the supporting member. This is a method of manufacturing stairs by fixing them.

Here, as the step plate members, a plurality of types with different numbers of steps are prepared in advance, and the step plate members are selected from these and arranged on the sloped structure member so that the number of steps corresponds to the part to be installed. It is preferable to fix it.

[Effect]

According to the present invention, since the inclined structural member, the support member, and the step board member are separated, it is only necessary to process the inclined structural member according to the stair portion where only the inclined structural member is installed, and the standardized supporting member and step board member can be processed. The plate member can be used in common for different staircases. This makes it possible to reduce costs through mass production of supporting members and step plate members, and enables quick response by stocking.

In addition, since support members are used when attaching the tread members to the slanted structural members, the slanted structural members have serrated parts that support the tread members, such as conventional stringers, and zigzags that are seen in stringer-type stairs. There is no need to form a groove-shaped support portion for the stepped plate member. Therefore, it is possible to easily manufacture the sloped structural member according to the installation site, and in combination with the shared use of the support member and step board member, it is easy to adapt to various staircases, thereby achieving the above object.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

A first embodiment of the invention is shown in FIGS. 1-3. The staircase in this embodiment is called a round staircase, and a landing 2 is provided in the middle part.
A lower staircase part 3 is provided at the lower right side in the figure, and an upper staircase part 4 is provided above.

Among these, the lower staircase part 3 has girders 11 and 1 as inclined structural members.
2, and the upper staircase part 4 has a girder 13.1 as an inclined structural member.
It is equipped with 4. 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 step 3, their lower ends are fixed to the foundation 5, and the upper ends of the step 3 are connected to each other with threads 15. Further, the upper end of the girder 11 is extended horizontally along the edge of the landing 2,
The tip of this extended portion 11A is fixed to the small pillar I6.

The girders 13 and 14 are arranged at an angle on both sides of the staircase part 4, and their upper ends are fixed to the girders 17 under the second floor floor, and the lower ends of the stair parts 4 are connected to the girder 1 that connects the upper end sides of the girders 11 and 12 mentioned above.
5 and are connected to each other. Further, the lower end of the girder 13 is extended horizontally along the edge of the landing 2, and this extended portion 13
The tip of A is fixed to the small pillar 18.

In addition, the small pillars 16 and 18 are connected by W19, and the extension part 1
1A, 13A, floor material 6 on a rectangular frame made of 15.19
A second landing is formed by stretching the bridge.

A plurality of stepped plate members 21 are arranged on the inclined portions of these beams 11 to 14. These step plate members 21 are the girder 11
．． 12 and the girders 13, 14, and is attached to each girder 11-14 via a support member 22.

Here, as the stepped plate member 21, FIGS. 4(A) to (D)
As shown in FIG. 2, 4-tier, 2-tier, 1-tier, and upper-end exclusive tier plate members 21A to 21D are prepared. Attachment pieces 23 are integrally provided on both sides of each stepped plate member 21, and bolt holes 23A are provided in the attachment pieces 23.

Further, as the support member 22, as shown in FIGS. 5(A) to 5(D), support members 22A to 22D for use in four stages, two stages, one stage, and the upper end are prepared. Each support member 2
A mounting piece 24 is integrally provided on the side of 2, and this mounting piece 24 is provided with a bolt hole 24A. Also,
A long hole 25 is formed in the bottom of each stage of the support member 22 .

These stepped plate members 21 and support members 22 are connected by bolting the respective bolt holes 23A and 24A, and their positions can be adjusted to the girders 11 to 14 by bolting them using the elongated holes 25 of the support members 22. It is designed to be installed on.

In addition, the stepped plate members 21A to 21C and the support members 22A to
22C can be placed at any position and can be freely connected vertically. Further, the step plate member 21D and the support member 22D are for exclusive use at the upper end, and the step plate members 21A to 21C and the support members 22A to 22C can be connected to the lower part, and the upper part is connected to the floor material 6 or the second floor floor 7, etc. It is set to connect.

Returning to FIG. 1, the lower staircase part 3 of this embodiment has five steps, and a step board member 2LD exclusively for the upper end is attached to the upper end step of the staircase part 3 via a support member 22D exclusively for the upper end, and the remaining steps are Four step plate members 21A are attached to the portion via support members 22A-G.

On the other hand, the upper staircase part 4 has nine steps, and an upper end dedicated step plate member 210 is attached to the upper end step of the staircase part 4 via an upper end ring and support member 22D, and four step plate members 21A are attached to the remaining part.
Two pieces are successively attached via support members 22A, respectively.

These constitute a circular staircase 1 with a total of 14 steps, consisting of a staircase section 3, a landing 2, and a staircase section 4.

Incidentally, a tread plate 26 having a concave portion at both ends is placed on the top surface of each step of the tread plate member 21, and the tread plate 26 is fixed to the tread plate member 21 by driving nails into the concave portions at both ends. be done. Then, the nail is driven into the concave part or the same piece of wood 2
7 and is now blocked.

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

First, girders 11 to 14 are manufactured according to the type and dimensions of the staircase l. In addition, step board members 21A to 2 are stocked in advance to match the number of steps in the step board member installation part of the staircase l.
1D and support members 22A to 22D.

Subsequently, the framework of the staircase 1 is assembled using the girders 11-14 and the like at the installation location of the staircase 1, and the selected step plate members 21 are attached to these inclined portions via the selected support members 22. Then, the step board 26 is attached to the upper surface of each step of the attached step plate member 21, and the work related to the stairs l is completed.

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

That is, since the girders 11 to 14 are standardized separately from the girders 11 to 14 corresponding to the stair portion to be installed, it is possible to share the tread member 21 and the support member 22 with different stairs, and the tread member 21 and the support member It is possible to reduce costs through mass production of 22 and to respond quickly through stock. Thereby, the stairs 1 can be manufactured quickly and at low cost.

In addition, the step plate members 2 are connected to the girders 11 to 14 via the support members 22.
1, the girders 11 to 14 do not require conventional support parts such as string girders or zigzag grooves, and can be manufactured by simple processing such as bending steel materials, and the girders 11 to 14 can be manufactured by simple processing such as bending steel materials. 21 and the supporting member 22 can be used in common, and manufacturing of various stairs can be simplified.

A second embodiment of the invention is shown in FIG. This embodiment basically has the same structure as the first embodiment, but the number of steps of the upper and lower staircase sections 3 and 4 is different.

That is, the lower stair portion 3A of this embodiment has seven steps, and the girder 11.12 has a step plate member 210 at the upper end step and a supporting member 2.
At the same time, the two-stage support member 22B and the four-stage support member 22A are installed in order from the bottom, and the four-stage step plate member 21A is installed across the support members 22B and 22A, and the remaining 2 tier plate members 2 in the part
1B is installed.

Further, the upper staircase portion 4A has seven steps, and a step plate member 21D is attached to the upper end step via a support member 22D, and three support members 22B of two steps are attached consecutively from the bottom to support these. Step plate member 21 is sequentially attached to member 22B from the bottom.
C, 21A, and 21C are installed.

In this embodiment, the same functions and effects as in the first embodiment can be achieved, and since the stepped plate member 21 and the support member 22 are integrated in a nested manner, the attachment of the stepped plate member 21 is easy. The position can be adjusted all at once, which saves time and effort compared to moving the stepped plate members 21 one by one.
Adjustment time can be shortened.

FIG. 7 shows a third embodiment of the invention. This embodiment is based on the circular staircase 1 and IA of the first and second embodiments.
Instead, a straight staircase IB was used.

That is, between the - floor and the second floor, girders 11B and 12B are installed along both sides of the staircase part IB, and girder 11B.

A step board member 21 is attached to 12B via a support member 22, thereby forming a straight staircase IB.

Here, three stepped plate members 21A, each of the stepped plate members 2IC, 21D, three support members 22B, and each of the supported members 22C, 22D are selected, and the middle of the stepped plate members 21A is selected. The arrangement of the support member 22 in that part is omitted. Furthermore, the three stepped plate members 21A are connected by a supporting member 22B, and the uppermost supporting member 2
1A is connected to the stepped plate member 2IC by a support member 22B, thereby integrating the stepped plate members 21A and 2IC.

This embodiment also provides the same functions and effects as those of the first and second embodiments, and by omitting part of the support member 22, the structure and construction can be simplified.

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 the embodiment, there are four stages as the stage plate member 21,
There are four types such as 2-tier, 1-tier, 1-tier, etc. For example, 3-tier,
It may be two stages, one stage, two stages, one stage, etc.

Furthermore, for example, each type of stepped plate member 21 may include two types, one with a long width and one with a short width, and the number of types of stepped plate members to be prepared in advance may be appropriately set in implementation.

Furthermore, the stepped plate members 21 are not limited to those that are hung between two girders 11, 12 and 13° 14, but may be arranged on two girders via supporting members. The number of girders on which the step plate members are arranged may be appropriately selected depending on the structure and width of the stairs.

Furthermore, the shape of the step board member 21 is not limited to a flat part on which the tread board 26 is placed, but may be long in the width direction of the stairs and have a groove with a flat bottom. In addition, the mounting can be performed at the bottom of the groove, and the deflection of the central portion of the top surface of the stepped plate member can be reduced.

Further, in the above embodiment, the triangular or serrated support member 2
2 is used, but the present invention is not limited to this, and it may be one in which a plurality of protrusions are arranged in a comb shape, or one in which the stepped plate member 21 is supported one step at a time, and the number and shape of the support steps are not limited.

〔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 the drawing]

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 lower staircase part of the same embodiment, and FIG.
A) to (D) are perspective views showing different types of stepped plate members used in the same example, and FIGS. 5(A) to (D) are perspective views showing different support members used in the same example. , FIGS. 6 and 7 are side views showing the second embodiment of the present invention and the embodiment shown in FIG. 3, respectively, and FIG. 8 is an exploded perspective view showing the conventional example. 1, IA, IB...Stairs, 11-14... Girders which are inclined structural members, 21.21A-21D... Step board members, 22.22A-22D... Support members.

Claims (2)

[Claims] (1) Step board members and supporting members of standard dimensions are formed in advance, a sloped structural member corresponding to the stair portion to be installed is formed, and the stepboard members are arranged and fixed to this sloped structural member via the support member. A method for manufacturing a unit type staircase, characterized by: (2) In claim 1, a plurality of types of step plate members having different numbers of steps are prepared in advance,
A method for manufacturing a unit type staircase, characterized in that step board members are selected from these to match the number of steps to be installed, and are arranged and fixed to an inclined structural member.