Stairway

A technology for stairs and parts, which is applied to stairs, ladders, and ladder-like structures. It can solve the problems of destroying the beauty of stairs, design constraints, and limitations on the strength of stairs, and achieve high strength, good productivity, and good construction.

Inactive Publication Date: 2005-04-20
NIPPON LIGHT METAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, if the staircase is built along a wall, the side frames are placed right next to the wall and also above the treads, which spoils the aesthetics of the staircase
In addition, since the stair handrail, which can be designed relatively freely, acts as a structural component, it forms a constraint on the design
[0007] In addition, in the above-mentioned stairs, the upper chord members and handrails are provided with curved parts to increase strength; however, the handrails are arranged along the upper chord members of the left and right side frames so that the upper chord members cannot be connected to each other, so that the overall strength of the stairs is improved. restricted
In addition, forming the curved portion requires bending processing, which of course takes time and labor.
[0008] In addition, since the curved portion must be processed according to different installation requirements such as the number of steps and the slope of the stairs, it is difficult to efficiently manufacture the curved portion

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0170] Such as Figure 1 to Figure 4 As shown, the staircase according to the first embodiment of the present invention includes: truss structure parts 10 and 10, which are a pair of left and right inclined beams; a plurality of connecting parts 11, used to connect the inclined beams; treads 12, which are fixedly supported On the connection part 11 ; the armrest 15 , located above the two side ends of the pedal 12 ; and the armrest pillars 13 and 14 for supporting the armrest 15 . In addition, in this embodiment, support blocks 6a and 6b are provided between the bottom end of the truss structural member 10 and the floor surface 7 below the stairs, and between the top end of the truss structural member 10 and the beam member 8a above the stairs. Support block 6c.

[0171] Such as figure 2 with 3 As shown in , the truss structure component 10 includes: an upper chord member 1 and a lower chord member 2 inclined with the slope of the staircase; and a plurality of lattice memb...

no. 2 example

[0195] Such as Figures 14 to 17 As shown, the staircase according to the second embodiment of the present invention includes: truss structure components 20, 20, which are a pair of left and right inclined beams; pedals 22, fixedly supported on the truss structure components 20; Above the ends on both sides; handrail pillars 13, 14 for supporting the handrail 15. In addition, in this embodiment, if Figure 16 As shown, a support block 23a is provided between the lower end of the truss structural member 20 and the floor below the stairs, and a support block 23b is provided between the upper end of the truss structural member 20 and the floor 8 above the stairs.

[0196] Such as Figure 15 with 16 As shown in , the truss structure component 20 includes: an upper chord member 1 and a lower chord member 2 inclined with the slope of the staircase; and a plurality of lattice members 4 for connecting them. In this embodiment, both the upper chord member 1 and the lower chord memb...

no. 3 example

[0203] Such as Figure 20 As shown, a staircase according to a third embodiment of the invention has curved truss structural members 30 , 30 . Other parts are almost the same as the staircase according to the second embodiment.

[0204] The truss structural member 30 comprises: an upper chord member 31 and a lower chord member 32, which slope with the slope of the staircase; and a plurality of lattice members 34 connecting the chord members together. In this embodiment, both the upper chord member 31 and the lower chord member 32 are composed of a plurality of frame members 33 connected through the hub 5 , and the lattice member 34 is composed of the same members as the frame member 33 . Thus, the truss structural member 30 is constituted by a plurality of frame members 33 and the hubs 5 connecting them, and the ends of the frame members 33 are engaged with the hubs 5 arranged at each node. Some lattice members 34 are laid horizontally according to the step height (hereinaft...

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PUM

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Abstract

The invention provides a staircase with a light structure, high production and construction efficiency, and a sense of lightness. The staircase comprises a pair of left and right inclined beams and pedals (12) formed by truss structural parts (10). The truss structure part (10) comprises: an upper chord member (1) and a lower chord member (2) inclined with the gradient of the stairs; a plurality of grids for connecting the upper chord member (1) and the lower chord member (2) structural parts (4), between the truss structural parts (10), a plurality of connection parts (11) arranged horizontally according to each step height are fixed to connect these truss structural parts (10), and the pedals (12) are fixedly supported on these connection parts (11).

Description

technical field [0001] This invention relates to stairs. Background technique [0002] In the past, there have been various forms of support for stair treads. In the case of stairs made of wood or steel, the treads are usually supported by stringers, including those disclosed in this specification. Stringers that must support heavier loads from the treads are constructed of larger and thicker members, such as channels or I-beams in the case of steel stairs. [0003] However, in the traditional staircase, since the inclined beams are heavy and thick, a lot of labor is required in the process of handling and construction. In addition, since the length and shape of the stringer differ depending on installation requirements such as the number of steps of the staircase and the gradient of the stairs, it becomes difficult to efficiently manufacture the stringer. [0004] Larger, heavier components such as channel steel or I-beams are used not only as stair stringers, but also a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/19E04F11/038E04F11/112E06C1/38E06C7/08
CPCE04B1/1909E04B2001/193E04B2001/1936E04B2001/1966E04B2001/1975E04B2001/199E04F11/112E06C1/38E06C7/084E04F11/1041E04F11/0255E04F2011/0209E04F11/0226
Inventor 西本耐安部则弘松永章生田中清文出野邦雄内藤繁堀川浩志椎名洋史长谷川常博长桥秀和
Owner NIPPON LIGHT METAL CO LTD
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