JP2007138426A - Staircase structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a staircase structure capable of preventing the generation of noise at a low construction cost. <P>SOLUTION: A side plate 11 of a staircase is fixed to an adjacent wall surface 40 via a mounting fitting 20. The mounting fitting 20 is composed of an upper bracket 21, a lower bracket 22, and a rubber elastic material 23 which is mounted in a state of being sandwiched between both the brackets 21 and 22. The upper bracket 21 is fixed to the side plate 11, and the lower bracket 22 is fixed to the wall surface 40, so that the side plate 11 can be fixed to the wall surface 40 via the rubber elastic material 23. A rubber elastic material 30 is interposed between sections where the staircase and a floor surface 41 on a lower floor are brought into contact with each other. Additionally, a rubber elastic material 32 is also interposed between sections where the staircase and a floor surface 42 on an upper floor are brought into contact with each other. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a staircase structure, and more particularly to a staircase structure that enables noise reduction when the stairs are raised and lowered.

As one type of staircase structure, Japanese Patent Application Laid-Open No. 9-228599 discloses that a metal base material having a groove shape is fixed between opposing side plates, a rubber elastic material is laminated on the base material, and between the side plates. A staircase structure is disclosed in which a step board to be disposed is laminated and fixed on a rubber elastic material.
According to this staircase structure, the vibration of the footboard is absorbed by the rubber elastic material, so that noise during the stair climbing can be prevented.
JP-A-9-228599

  In the conventional staircase structure described above, since the metal base material and the rubber elastic material are attached to each step of the staircase, the number of parts is increased as compared with the normal staircase structure, and thus the construction cost is increased.

  The present invention has been made in view of such problems, and an object thereof is to provide a staircase structure capable of preventing noise at a low construction cost.

In order to achieve the above object, the staircase structure according to the present invention fixes the staircase side plate to an adjacent wall surface via an elastic material.
Preferably, an elastic material is interposed between the floor surface of the lower floor and the portion where the stairs come into contact.
More preferably, an elastic material is interposed between the floor surface of the upper floor and the portion where the stairs contact.

According to the staircase structure according to the present invention, the elastic material is interposed between the staircase and the wall surface on which the staircase is installed or the floor surfaces of the upper and lower floors. Therefore, since vibration can be suppressed, noise during stairs ascent and descent can be reduced.
Therefore, according to the present invention, the elastic material is interposed between the staircase and the wall surface or the floor surface of the staircase and the upper and lower floors. Can be reduced.

  The staircase side plate is fixed to the adjacent wall surface via a mounting bracket. This mounting bracket is made of a rubber elastic material sandwiched between the upper bracket, the lower bracket, and both brackets. The upper bracket is fixed to the side plate, and the lower bracket is fixed to the wall surface so that the side plate is attached to the wall surface via the rubber elastic material. Fixed. A rubber elastic material is interposed between the floor surface of the lower floor and the portion where the stairs come into contact. Furthermore, a rubber elastic material is interposed between the upper floor and the part where the stairs come into contact.

  An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 and FIG. 2 show a staircase structure according to an embodiment of the present invention. The staircase structure 10 includes a side plate 11, a tread plate 12, a kick plate 13, a mounting bracket 20, and cushioning materials 30, 31, and 32.

  On the inner surface of the side plate 11, a plurality of side holes 11a are formed. Adjacent tenon holes 11a are arranged so as to maintain a certain level difference. The tread plate 12 is installed between the side plates 11 by fitting the ends into the side holes 11 a of the left and right side plates 11.

  A narrow groove 12a extending in the longitudinal direction of the tread plate 12 is formed at a position from the front end portion of the back surface of the tread plate 12, and the upper end of the kick plate 13 is fitted into the narrow groove 12a, and the lower end portion of the kick plate 13 is a lower step. Are fixed to the rear end of the tread 12 with nails, screws or the like.

  As shown in detail in FIG. 3, the mounting bracket 20 includes an upper bracket 21 and a lower bracket 22, which are metal press-formed products, a rubber elastic material 23 having a circular cross section, a bolt 24, and upper and lower two nuts 25 and 26. Has been.

  The upper bracket 21 includes a horizontal plane 21a, a connecting surface 21b that is bent at a right angle from one end of the horizontal plane 21a, an upper base surface 21c that is bent obliquely upward from an upper end portion of the connecting surface 21b, and a lower base surface that is bent obliquely downward from the other end of the horizontal plane 21a. 21d.

  The lower bracket 22 includes a horizontal surface 22a and a base surface 22b that bends at a right angle downward from one end of the horizontal surface 22a. Through holes for inserting bolts 24 are formed in the rubber elastic material 23, the horizontal surface 21 a of the upper bracket 21 and the horizontal surface 22 a of the lower bracket 22.

  The rubber elastic member 23 is inserted into the horizontal surfaces 21a and 22a of the brackets 21 and 22 and the through holes of the rubber elastic member 23, and the rubber elastic member 23 is above the horizontal surface 21a of the upper bracket 21 and below the horizontal surface 22a of the lower bracket 22. Then, the nuts 25 and 26 are fastened to the bolts 24 so as to be sandwiched between the horizontal surfaces 21a and 22a. For this reason, the horizontal surfaces 21a and 22a of the upper bracket 21 and the lower bracket 22 are connected so as to be able to contact and separate from each other within a deformation amount range in which the rubber elastic member 23 is compressed and deformed.

  In the side plate 11, the upper base surface 21 c and the lower base surface 21 d of the upper bracket 21 of the mounting bracket 20 are fixed to the bottom surface of the side plate 11 with screws, and the base surface 22 b of the lower bracket 22 is fixed to the wall surface 40 adjacent to the side plate 11 with screws. By this, it is fixed to the wall surface 40. Thereby, the side plate 11 is fixed to the wall surface 40 through the rubber elastic material 23. Further, a cushioning material 30 made of a rubber elastic material is interposed between the lower end portion of the side plate 11 and the floor 41 on the lower floor.

  A cushioning material 31 made of rubber elastic material is also interposed between the upper end of the side plate 11 and the uppermost tread 12 and the floor 42 of the upper floor. Further, a cushioning material 32 made of a rubber elastic material is interposed between the uppermost tread board 12 and the base material 43 of the floor surface 42 of the upper floor.

  According to the staircase structure according to the present embodiment, the staircase 10 is installed with the rubber elastic materials 23, 30, 31, 32 interposed between the wall surface 40 and the floor surfaces 41, 42 of the upper and lower floors. Vibration is absorbed by the elastic members 23, 30, 31 and 32. Therefore, since vibration can be suppressed, noise during stairs ascent and descent can be reduced.

  FIG. 4 shows another embodiment of the mounting bracket. The mounting bracket 50 includes a lower bracket 22 and an upper bracket having the same structure as the lower bracket 22 of the mounting bracket 20. In addition, a rubber elastic material 23 having a circular cross section, a bolt 24, and two nuts 25 and 26 are provided. The upper and lower brackets 22 are rotatably connected by bolts 24, and rubber elastic bodies 23 are attached to the bolts 24.

  In order to install the stairs using the mounting bracket 50, as shown in FIG. 5, the base surface 22b of the upper bracket 22 of the mounting bracket 50 is fixed to the side surface of the side plate with screws, and the base surface 22b of the lower bracket 22 is fixed. It is fixed to the wall surface 40 adjacent to the side plate 11 with screws. Thereby, the side plate 11 is fixed to the wall surface 40 through the rubber elastic material 23.

  Since the mounting bracket 50 uses the same structure for the lower bracket 22 and the upper bracket 22, the manufacturing cost can be reduced. Further, FIG. 5 illustrates a step up to the right. In the case of a step up to the left, if the upper bracket 22 is rotated around the bolt 24 by 180 degrees with respect to the lower bracket 22, Similarly, the side plate 11 can be fixed to the wall surface 40 with the mounting bracket 50.

It is a side view which shows typically the staircase structure concerning the Example of this invention. It is a front view which shows typically the side plate, footboard, and reinforcement bar which comprise the principal part of the staircase structure. It is a perspective view which shows the attachment metal fitting of the staircase structure. It is a perspective view which shows the other Example of the attachment metal fitting of the staircase structure. It is explanatory drawing which shows the usage method of the attachment metal fitting which concerns on another Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Staircase structure, 11 ... Side board, 12 ... Tread board, 13 ... Kick board, 20, 50 ... Mounting bracket, 21 ... Upper bracket, 22 ... Lower bracket, 23, 30, 31, 32 ... Rubber elastic material, 40 ... Wall surface, 41, 42 ... floor surface.

Claims (3)

A staircase structure characterized in that a staircase side plate is fixed to an adjacent wall surface via an elastic material. The staircase structure according to claim 1, wherein an elastic material is interposed between a floor surface of the lower floor and a portion where the staircase contacts. 2. The staircase structure according to claim 1, wherein an elastic material is interposed between a floor surface of the upper floor and a portion where the staircase contacts.

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