JP6416589B2 - High sound insulation staircase - Google Patents

Description

  The present invention relates to an inner staircase constructed in a wooden building, and more particularly to a highly sound-insulating staircase that can suppress the generation of noise during use as much as possible and can effectively block transmission of vibrations outside the staircase room.

  Small-scale (for example, about 4 to 12 households) two-story rental wooden apartments come in a variety of forms, and traditionally, a shared staircase for the second-floor tenant is installed on the outer wall of the building. However, in recent years, entrances for tenant households on the second floor have been set up on the first floor for each residential unit, and these two-story entrances have been separated from residential units for tenant households on the first floor. There are also types that are arranged alternately with the entrance.

  In this type of apartment, the second-floor occupant goes into and out of the second-floor room through the entrance on the first floor and the dedicated inner staircase behind it. Is adjacent to the living room of the adjacent first-floor dwelling unit and one boundary wall (a wall that separates each dwelling unit in an apartment house), so noise and vibration when using stairs are problematic.

  More specifically, the internal staircase constructed in a wooden house has the problem that noise and vibration during up and down are transmitted to other rooms. However, there is no problem even if some noise or vibration occurs when going up and down the stairs. If vibration occurs, problems may occur among tenant households.

Japanese Utility Model Publication No. 03-71029 Japanese Utility Model Publication No. 05-28824 JP-A-11-159095

  As a method for reducing noise and vibration generated when using stairs, it is known to dispose an anti-vibration material made of an elastic material between a step plate and a member that supports the step plate (Patent Documents 1 to 3). 3). In this case, the impact acting on the step board when the stair user steps on the step board can be absorbed to some extent compared to the case where no vibration isolator is arranged, and noise and vibration are reduced within a certain range. Although an effect can be expected, it is difficult to say that it is sufficient as a noise and vibration countermeasure for the inner staircase in the wooden apartment house in which a plurality of households as described above reside.

  The present invention is intended to solve such a problem in the prior art, and suppresses the generation of noise during use as much as possible, and can effectively block the transmission of vibrations outside the staircase. The purpose is to provide sound insulation steps.

A highly sound-insulating staircase according to the present invention is configured by attaching and fixing side plates to opposing left and right boundary walls in a staircase, and supporting left and right end portions of the step plates with left and right side plates. An anti-vibration material made of an elastic material is arranged only in the area between the walls where the pillars (including the inter- columns) constituting the boundary wall and the side plates overlap to form the boundary walls from the side plate side. The side plate is fixed to the boundary wall by screws driven into the pillar, and a vibration isolating material made of an elastic material is disposed between the horizontal portion of the side plate and the end portion of the step plate. The step plate is fixed on the horizontal portion of the side plate in a state where a gap is formed therebetween. The “left and right boundary walls, etc.” as used herein means that at least one of the left and right walls of the staircase is a boundary wall, and both the left and right walls are boundary walls. In addition, it means that one of the left and right sides is a boundary wall and the other is a wall other than the boundary wall (for example, a wall that partitions the inside and outside of the building).

  In the present invention, it is preferable to attach the kick plate to the vertical portion of the side plate in a state where a gap is formed between the end face of the kick plate and the boundary wall, and when applied to a staircase having a surrounding step portion. Is formed with a groove for allowing the upper edge of the kick plate disposed on the lower step side to enter and fit along the front end side edge portion of the lower surface of the rotation step plate constituting the rotation step portion. It is preferable that a vibration isolating material is disposed therein, and the surrounding step plate is supported by a kick plate that has entered the groove via the vibration isolating material.

  Furthermore, it is preferable to use a corrugated board in which a sound-absorbing mat having elasticity (or an elastic mat material having elasticity placed on the back side of the decorative board) is attached to the upper surface of the base material. A saddle material is attached to the front end side of the material (or a collar part is formed), an upper surface of a sound-absorbing mat (or a decorative board) affixed to the upper surface of the base material, and a collar material (or collar part) The difference in the height position of the upper surface is within 1 mm, and the thickness of the sound absorbing mat is reduced in the vicinity of the boundary between the sound absorbing mat (or decorative board) and the saddle material (or collar). It is preferable to use a step plate on which a step adjusting material formed of a material that does not sink even when a load is applied.

  In the high sound insulation staircase according to the present invention, since the vibration isolating material is disposed between the step plate and the horizontal portion of the side plate that supports the step plate, the impact when the step plate receives a load during the use of the staircase. Is absorbed, and the generation of noise and vibration can be suppressed, and a vibration isolator is disposed between the side plate and the boundary wall, and between the left and right end surfaces of the step plate and the boundary wall, and Since a gap is formed between the left and right end faces of the kick plate and the boundary wall, vibration generated when the step board receives a load is prevented from being transmitted to the boundary wall, and the outside of the staircase ( It is possible to effectively block the transmission of vibrations to adjacent rooms etc. adjacent to each other across the boundary wall.

  In addition, when applied to a staircase having a surrounding stepped portion, the surrounding stepped plate is arranged by disposing a vibration isolating material in a groove formed on the front edge of the lower surface of the surrounding stepped plate. It can also be supported by a kick plate and can prevent bending, and can also prevent transmission of vibration from the surrounding step plate to the kick plate.

  In addition, use a staircase when using a step board with an elastic sound-absorbing mat (or an elastic mat material placed on the back of the decorative board) attached to the top surface of the base material. It is possible to effectively suppress the generation of tapping sound at the time, and it is possible to realize an effective noise vibration countermeasure.

FIG. 1 is an explanatory diagram of a construction method of a high sound insulation staircase according to the present invention, and shows a state in which a side plate 5 is fixed to a wall 1. FIG. 2 is a cross-sectional view of the field wall 1, the side plate 5 and the like along the line AA shown in FIG. FIG. 3 is an explanatory view of the construction method of the high sound insulation staircase according to the present invention, and is a view showing a state in which the step plate 7 and the kick plate 8 are attached to the side plate 5. FIG. 4 is a cross-sectional view of the step plate 7 and the kick plate 8 after fixing. FIG. 5 is an explanatory diagram of the construction method of the highly sound-insulating stairs according to the present invention, and is a diagram showing the attachment state of the decorative side plate 11. 6 (1) is a cross-sectional view of the decorative side plate 11 taken along line BB shown in FIG. 5, FIG. 6 (2) is an enlarged view of the lower end portion thereof, and FIG. 6 (3) is a decorative side plate. It is sectional drawing of the makeup | decoration side board 11, the cushion material 22, etc. which show the state which was pinched | interposed between 11 and the corrugated board 7, and the cushion material 22 deform | transformed. 7 (1) to (3) are cross-sectional views showing other examples of the configuration of the step board 7 used in the high sound insulation step according to the present invention. FIG. 8 is a perspective view of a “around staircase” to which the high sound insulation staircase according to the present invention is applied. FIG. 9 is a cross-sectional view of the step plate 7 and the kick plate 8 in the surrounding step portion 21 of the “around step” shown in FIG.

  The high sound insulation staircase according to the present invention basically has a side plate attached and fixed to the left and right boundary walls (consisting of a pillar, a staircase side board, and an adjacent room side board) facing each other in the staircase. The left and right ends of the plate are supported by left and right side plates and the like. Hereinafter, the form for implementing the high sound-insulation staircase concerning this invention is demonstrated along an accompanying drawing.

  The high sound insulation staircase according to the present invention is constructed by, for example, the following method. First, as shown in FIG. 1, a stepped side plate 5 having a horizontal portion 5a and a vertical portion 5b with respect to the surface (staircase side board 2a) of the boundary wall 1 (right boundary wall when viewed from the first floor side). To fix. Further, in the staircase, a side plate (not shown) is fixed in the same manner to a field wall (left side wall as viewed from the first floor) (not shown) facing the wall 1 in FIG.

  The side plate 5 is fixed by driving a screw 4 into the column 3 from the surface side of the side plate 5 in a region where the column 3 (including the inter-column) exists on the back side of the staircase side board 2a. At this time, as shown in FIG. 2, a vibration isolating material 6 (vibration isolating rubber or the like) made of an elastic material is disposed between the side plate 5 and the boundary wall 1 (the staircase side board 2a). This anti-vibration material 6 may be disposed only in a place where the screw 4 is driven (a region where the side plate 5 and the column 3 overlap), and does not need to be disposed in a region where the column 3 does not exist.

  Next, as shown in FIG. 3, the kick plate 8 is arranged and fixed on the vertical portion 5 b of the fixed side plate 5, and the step plate 7 is arranged and fixed on the horizontal portion 5 a of the side plate 5. More specifically, the left and right end portions of the kick plate 8 are respectively attached to the vertical portion 5b of the side plate 5 shown in FIG. 1 and the vertical portion (not shown) of the side plate fixed to the opposing field wall. The left and right end portions of the step plate 7 are placed on the horizontal portion 5a of the side plate 5 shown in FIG. 1 and the horizontal portion (not shown) of the side plate fixed to the opposite side wall. And fix.

  At this time, an anti-vibration material 9 (anti-vibration rubber or the like) made of an elastic material is disposed between the horizontal portion 5a of the side plate 5 and the end of the step plate 7 placed thereon. As shown in FIG. 4, the step plate 7 is fixed to the horizontal portion 5 a of the side plate 5 by driving a screw 14 into the side plate 5 from the upper surface side at the end of the step plate 7.

  It should be noted that when the step plate 7 is fixed on the side plate 5, both end surfaces of the step plate 7 are arranged so that neither of the left and right end surfaces (the end of the step plate 7) is in contact with the boundary wall 1 (staircase side board 2a). And a state where a gap is formed between the wall 1 and the boundary wall 1. Similarly, the kick plate 8 is also in a state in which a gap is formed between both end faces and the field wall 1.

  Further, a groove 7 a as shown in FIG. 3 is formed on the lower surface of the step plate 7 along the edge on the front end side. When the step plate 7 is placed on the horizontal portion 5 a of the side plate 5, As shown in FIG. 4, the upper end edge 8a of the kick plate 8 arranged on the lower stage side is inserted into the groove 7a and fitted.

  After fixing the step board 7 or the like, finally, the inverted side plate-shaped decorative side plate (baseboard) 11 having the horizontal portion 11a and the vertical portion 11b is attached to the wall 1 (the staircase side board 2a) as shown in FIG. Mounting, the horizontal part 11a, the gap between the both end faces of the step board 7 and the staircase side board 2a, and the screw holes 15 and 14 formed on the end part of the step board 7 to fix the step board 7 ( 4) and a state where the gap between the both end faces of the kick plate 8 and the staircase side board 2a is hidden by the vertical portion 11b.

  A cushion material 22 made of an elastic material is disposed on the horizontal portion 11 a and the vertical portion 11 b of the decorative side plate 11. In this embodiment, as shown in FIG. 6, the cushion material 22 protrudes in a predetermined direction (upward in FIG. 6) from the arc-shaped portion 22 a having a circular cross section, the base 22 c, and the base 22 c. The fixing flap 22b is fixed to the horizontal portion 11a and the vertical portion 11b by fitting the fixing flap 22b into a groove formed in the decorative side plate 11.

  When the decorative side plate 11 to which the cushion material 22 is fixed is attached to the field wall 1, the cushion material 22 attached to the horizontal portion 11a has an arcuate portion 22a of the corrugated plate 7 as shown in FIG. The cushion material 22 is sandwiched between the upper surface and deformed, and the cushion material 22 attached to the vertical portion 11b is deformed with the arc-shaped portion 22a sandwiched between the kick plate 8 (not shown). ), It is possible to avoid the formation of a gap between the horizontal portion 11a of the decorative side plate 11 and the step plate 7 and between the vertical portion 11b and the kick plate 8.

  The highly sound-insulating staircase of the present embodiment is related to the structure as described above, and suppresses the generation of noise during use as much as possible and effectively blocks the transmission of vibrations outside the staircase room. Can do. More specifically, since the vibration isolator 9 is disposed between the step plate 7 and the horizontal portion 5a of the side plate 5 that supports the step plate 7, when the step plate 7 receives a load during use of the stairs. The impact is absorbed and the generation of noise and vibration can be suppressed, and the vibration isolating material 6 is disposed between the side plate 5 and the field wall 1, and the left and right end surfaces of the step plate 7 and the field wall 1. And a gap is formed between the left and right end faces of the kick plate 8 and the field wall 1, so that vibration generated when the step plate 7 receives a load is transmitted to the field wall 1. The transmission of vibration to the outside of the staircase (adjacent rooms adjacent to each other with the boundary wall 1 therebetween) can be effectively blocked.

  Further, since the decorative side plate 11 is directly attached to the wall 1, if the vibration generated during the elevation is transmitted to the decorative side plate 11, the vibration is also transmitted to the outside of the staircase through the field wall 1. However, in the present embodiment, as described above, since the cushion material 22 is disposed on the horizontal portion 11a and the vertical portion 11b of the decorative side plate 11, vibration generated when the corrugated plate 7 receives a load. Can be suitably prevented from being transmitted to the outside of the wall 1 and the staircase through the decorative side plate 11.

  In this embodiment, a step board 7 made of a single material (wood) having a cross-sectional shape as shown in FIG. 4 is used. However, as shown in FIG. It is also possible to use a corrugated plate 7 in which a sound absorbing mat 17 made of a synthetic resin having elasticity is attached to the upper surface of the material 16. When this step board 7 is used, generation | occurrence | production of the tap sound at the time of stair use can be suppressed effectively, and a more effective noise vibration measure can be implement | achieved.

  When the step board 7 having the sound absorbing mat 17 attached to the upper surface of the base material 16 is used, as shown in FIG. 7 (1), a wooden brace 18 (kick shown in FIG. (With a groove 7a for receiving the upper edge 8a of the plate 8), and the height position of the upper surface of the sound-absorbing mat 17 and the upper surface of the saddle member 18 are substantially matched (within 1 mm). It is desirable to have a configuration. However, when a soft material is used as the sound-absorbing mat 17, a step is produced between the sound-absorbing material 18 due to the sound-absorbing mat 17 sinking when a load is applied. In the vicinity of the boundary between the sound-absorbing mat 17 and the saddle member 18, the thickness of the sound-absorbing mat 17 is reduced and the level difference of the material (wood, etc.) that does not sink even when a load is applied. It is desirable to alleviate the level difference that may occur with the brazing material 18 by arranging the adjusting material 19.

  In addition, the base material 16 and the brazing material 18 are not joined after molding, but as shown in FIG. 7B, the upper surface of the sound-absorbing mat 17 attached to the base material 16 and the height position substantially coincide ( The flange portion 16a (within 1 mm or less) may be formed integrally with the tip of the base material 16.

  Further, as shown in FIG. 7 (3), an elastic mat member 24 made of a synthetic resin having elasticity is arranged on the back side (lower side) of the decorative plate 23, and is attached to the upper surface of the base material 16. A corrugated plate 7 can also be used. Also in this case, by arranging a step adjusting material 19 made of a material (such as wood) that does not sink even when a load is applied, in the vicinity of the boundary between the decorative plate 23 and the saddle member 18, It is desirable to mitigate the level difference that may occur between them.

  In addition, when the present invention is applied to a rotating staircase as shown in FIG. 8, in the rotating step portion 21, as shown in FIG. 9, a groove 7a formed on the lower surface tip side of the step plate 7 (circular step plate). An anti-vibration material 20 is also disposed inside, and the step plate 7 is supported by the kick plate 8 that has entered the groove 7a, and the anti-vibration material 20 absorbs an impact acting on the step plate 7 to generate noise. It is desirable to be able to prevent the occurrence of the occurrence of the vibration and to interrupt the transmission of vibration to the kick plate 8.

  The step plate 7 (around step plate) constituting the turn step portion 21 has a larger area than the rectangular step plate 7 (straight step plate) used in the straight portion as shown in FIG. Since the length is also increased, there is a problem that the amount of bending becomes large when supported only by the left and right ends. Therefore, in order to avoid such bending, the step plate 7 (around step plate) in the turn step portion 21 is preferably configured to be supported by the kick plate 8 as described above. In order to prevent transmission of vibration from the step plate 7 to the kick plate 8, it is preferable that a vibration isolator 20 is interposed between the step plate 7 and the kick plate 8.

  In the above-described embodiment, the application example of the high sound insulation staircase to the staircase in which the left and right walls facing each other are the boundary walls (walls separating the dwelling units in the apartment house) has been described. The high sound insulation staircase can be applied even when only one of the opposing left and right walls is a field wall.

  Moreover, in the said embodiment, what was comprised by the circular-arc-shaped part 22a, the base 22c, and the fixing flap 22b as a cushioning material 22 arrange | positioned at the horizontal part 11a and the vertical part 11b of the decorative side board 11 is used. However, it is sandwiched between the horizontal part 11a of the decorative side plate 11 and the step board 7 and / or between the vertical part 11b and the kick plate 8 and deformed, and the horizontal part 11a of the decorative side plate 11 Any shape, as long as it can avoid the formation of a gap between the step plates 7 and / or between the vertical portion 11b and the kick plate 8, and can suppress the transmission of vibration, A structure or material can also be applied. For example, instead of the arcuate part 22a, a part having a tube-like part made of a soft resin having a circular or elliptical cross section may be used, or a belt-like material made of felt or the like may be used.

1: the world wall,
2a: Staircase side board,
2b: Board next to the room
3: Pillar,
4: Screw,
5: side plate,
5a: horizontal portion,
5b: vertical portion,
6: Anti-vibration material,
7: corrugated board,
7a: groove,
8: Kick board,
8a: upper edge,
9: Anti-vibration material,
11: makeup side plate,
11a: horizontal part,
11b: vertical portion,
14: Screw,
15: Screw hole,
16: base material,
16a: buttocks
17: sound absorbing mat,
18: Wood
19: Level adjustment material,
20: anti-vibration material,
21: Around the step,
22: Cushion material
22a: arc-shaped part,
22b: fixing flap,
22c: base,
23: decorative board,
24: Elastic mat material

Claims (11)

It is a staircase configured by attaching and fixing side plates to the left and right field walls facing each other in the staircase, and supporting the left and right ends of the step plates by the left and right side plates,
An anti-vibration material made of an elastic material is arranged only in the area between the side plate and the boundary wall where the column and the side plate constituting the boundary wall overlap, and from the side plate side, the inside of the column forming the boundary wall The side plate is fixed to the wall with screws
A vibration isolating material made of an elastic material is arranged between the horizontal portion of the side plate and the end portion of the step plate, and the step plate is placed horizontally with the gap between the end surface of the step plate and the field wall. High sound insulation staircase, characterized by being fixed on top of the section.   The highly sound-insulating stairs according to claim 1, wherein the kick plate is attached to a vertical portion of the side plate in a state where a gap is formed between the end face of the kick plate and the boundary wall. A staircase with surrounding steps,
A groove is formed along the tip side edge of the lower surface of the rotating step plate constituting the rotating step portion to allow the upper edge of the kick plate arranged on the lower step side to enter and fit,
The anti-vibration material is disposed in the groove, and the surrounding step plate is supported by a kick plate that enters the groove through the anti-vibration material. High sound insulation stairs.   The highly sound-insulating stairs according to any one of claims 1 to 3, wherein a step board formed by attaching an elastic sound-absorbing mat to the upper surface of the base material is used.   A padding material is attached to the tip side of the base material, or a hook part is formed on the tip side of the base material. The height difference is within 1 mm, and the thickness of the sound-absorbing mat is reduced near the boundary between the sound-absorbing mat and the saddle or the collar, and no sinking occurs even when a load is applied. The highly sound-insulating stairs according to claim 4, wherein a step board on which a step adjusting material formed of a material is arranged is used.   The high sound insulation according to any one of claims 1 to 3, wherein a step board is used in which an elastic mat material having elasticity is arranged on the back side of the decorative board, and is attached to the upper surface of the base material. Stairs.   A collar is attached to the tip side of the base material, or a collar is formed on the tip side of the base material, and the top surface of the decorative board attached to the top surface of the base material and the height of the top surface of the collar or collar A step in which a step adjustment material formed by a material which is configured so that the difference in position is within 1 mm and does not sink even when a load is applied is provided near the boundary between the decorative plate and the saddle or the collar. The sound-insulating staircase according to claim 6, wherein a board is used.   A reverse side plate-shaped decorative side plate having a horizontal part and a vertical part is attached to the boundary wall, and the horizontal part of the decorative side plate is in a state in which the gap between the end surface of the step board and the boundary wall is hidden. The high sound insulation staircase according to claim 1.   An inverted platter-shaped decorative side plate having a horizontal portion and a vertical portion is attached to the wall, and the vertical portion of the decorative side plate is in a state in which the gap between the end face of the kick plate and the wall is hidden. The highly sound-insulating stairs according to claim 2.   A cushioning material made of an elastic material is disposed on the horizontal part of the decorative side plate, and is configured to prevent transmission of vibration from the step plate to the decorative side plate while avoiding the formation of a gap between the horizontal part of the decorative side plate and the step plate. The highly sound-insulating stairs according to claim 8, wherein   A cushioning material made of an elastic material is arranged in the vertical portion of the decorative side plate, and vibration transmission from the kick plate to the decorative side plate is avoided while avoiding the formation of a gap between the vertical portion of the decorative side plate and the kick plate. The highly sound-insulating staircase according to claim 9, wherein the sound-insulating staircase is configured so as to be prevented.

Images