JPS63297660A - Upstairs unit - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a stair unit.

[Prior art] Conventionally, Japanese Utility Model Application Publication No. 104408/1983 and Japanese Patent Application Laid-Open No. 1987-104408
BACKGROUND ART Staircase units such as those described in Japanese Utility Model Publication No. 104317 and Japanese Utility Model Publication No. 54-4244 have been proposed. The stair unit has a substantially box-shaped unit main body formed by joining a plurality of upper beams, lower beams, and columns, and a staircase is arranged within this unit main body.

[Problems to be Solved by the Invention] However, in the conventional staircase unit described above, the lower end of the staircase is joined to the unit main body. Therefore, the lower end of the stairs is supported by the unit body that constitutes the vibration system, and the vibrations that occur on the stairs when walking on the stairs are absorbed by the stair support (
This induces resonance in the unit body) and is amplified to a larger vibration. In addition, this amplified vibration is easily transmitted from the lower end of the stairs to the unit body, and tends to induce large vibrations in the sash attached to the unit body, furniture, etc. placed within the unit body.

An object of the present invention is to suppress the occurrence of vibrations in the stairs and to prevent the vibrations from being transmitted from the lower end of the stairs to the unit main body.

[Means for Solving the Problems] The present invention provides a staircase unit in which a plurality of upper beams, lower beams, and columns are joined to form a substantially box-shaped unit body, and stairs are arranged within this unit body. In this case, the lower end of the staircase is directly supported by the foundation without being joined to the unit body.

[Function] According to the present invention, the lower end of the staircase is directly supported by the foundation without being joined to the unit body. That is,
Since the lower end of the stairs is supported by a foundation that does not constitute a vibration system, the vibrations that occur on the stairs when walking on the stairs will not induce resonance in the stair support (foundation) and be amplified into larger vibrations. The vibrations generated on the stairs when walking on the stairs are not transmitted from the bottom of the stairs to the unit body, and large vibrations are not induced in the sash attached to the unit body or furniture placed inside the unit body. do not have.

[Example] Fig. 1 is a front view showing the support structure at the bottom end of the stairs, Fig. 2 is a side view of Fig. 1, Fig. 3 is an exploded perspective view showing the support structure at the bottom end of the stairs, and Fig. 4 is an exploded perspective view showing the support structure at the bottom end of the stairs. The figure is a side view showing the support structure of the upper end of the stairs, and FIG. 5 is a perspective view showing the overall structure of the stair unit.

As shown in FIG.
A folding staircase consisting of

The unit main body 11 is formed into a substantially box shape by joining four upper beams 15, lower beams 16, and columns 17, and is fixed with the lower beams 16 placed on the foundation 18 (see Fig. 1). , see FIG. 2), and in FIGS. 1 and 2, 19 is a floor beam, 20 is a floor joist, and 21 is a floor material.

The landing 13 includes a landing frame 22 and a unit body 1.
It consists of four pillars 23 that support a landing frame 22 on one lower beam 16.

As shown in FIGS. 1 to 3, the lower end of the lower staircase 12 is directly supported by the foundation 18 without being joined to the unit main body 11. That is, an insert anchor 24 is embedded in the foundation 18, a lower support plate 25 made of a steel plate is placed on the upper surface of the foundation 18, and a short column 26 made of square steel pipe is erected on the north face of the lower support plate 25. A steel plate upper receiving plate 27 is placed on the upper end of the short column 26, and a mounting plate 28 provided at the lower end of the lower staircase 12 is placed on the upper surface of the upper receiving plate 27. A washer 29 is placed on the upper surface of the insert anchor 28, and each of these members 25 to 29 is tightly connected by a port 30 screwed onto the insert anchor 24. In addition, under the above-mentioned tightened state, one end of each of the short columns 26 is set to pass through the notch hole 31 provided in the flooring 21 of the unit main body 11 and protrude upward from the north surface of the flooring 21, As a result, the mounting plate 28 of the lower staircase 12, the upper receiving plate 27 and the unit main body 11
A certain gap is formed between the lower staircase 12 and the floor material 21 to prevent the lower end of the lower staircase 12 from coming into contact with the unit main body 11 side.

Further, as shown in FIG. 4, the upper end of the lower staircase 12 is fixed to the landing frame 22 by a port 33 via a rubber plate 32 serving as a vibration damping plate.

The lower end of the old staircase 14 is fixed to the landing frame 22 via a vibration damping plate (not shown), and the upper end of the upper staircase 14 is fixed to the support beam 34 of the unit main body 11 via a vibration damping plate (not shown). has been done.

Next, the operation of the above embodiment will be explained.

According to the embodiment described above, the lower end portion of the lower staircase 12 is directly supported by the foundation 18 without being joined to the unit main body 11. That is, since the lower end of the lower staircase 12 is supported by the foundation 18 that does not constitute a vibration system, the lower end of the lower staircase 12 is supported by the foundation 18 that does not constitute a vibration system.
The vibrations generated in the steps 2 will not induce resonance in the stair support part (foundation 18) and be amplified into larger vibrations, and the vibrations generated in the stairs when walking on the stairs will be transmitted from the lower end of the stairs 12 to the unit main body 11. Without any problem, the unit body 11
Large vibrations are not induced in the sash attached to the unit body 11 or furniture placed inside the unit body 11.

[Effects of the Invention] As described above, according to the present invention, it is possible to suppress the occurrence of vibrations on the stairs and prevent the vibrations from being transmitted from the lower end of the stairs to the unit main body.

[Brief explanation of drawings]

Figure 1 is a front view showing the support structure at the bottom of the stairs, Figure 2 is a side view of Figure 1, Figure 3 is an exploded perspective view of the support structure at the bottom of the stairs, and Figure 4 is the top of the stairs. FIG. 5 is a side view showing the support structure of the stair unit, and FIG. 5 is a perspective view showing the overall structure of the stair unit. 10... Stair unit 11... Unit body. 12...Lower stairs (stairs), 15...Upper beam, 16...Lower beam, 17...Column, 18...Foundation. Patent applicant Sekisui Chemical Co., Ltd. Representative Hiroshi 1) Kaoru 2 Figure 3 Figure 4

Claims (1)

[Claims] (1) In a stair unit in which multiple upper beams, lower beams, and columns are joined to form a roughly box-shaped unit body, and stairs are placed within this unit body, the lower end of the stairs is joined to the unit body. A stair unit that is characterized by being directly supported by the foundation without having to do so.