JP5504020B2 - Handrail unit and vibration preventing device used therefor - Google Patents

Description

  The present invention relates to a handrail unit and a vibration preventing device used therefor.

  Handrail units are installed on the verandas and rooftops of apartment buildings. The handrail unit includes two support columns spaced apart in the horizontal direction, an upper beam and a lower beam disposed between the columns and fixed to the column, and the upper beam and the lower beam. And a plurality of handrails arranged at intervals in the horizontal direction. The upper end of each balustrade is attached to the upper rail, and the lower end is attached to the lower rail.

  Conventionally, the balustrade unit is disposed between the upper rail and the lower rail, and is fixed to the column. The middle rail intersecting each balustrade, and between the middle rail and the balustrade. Some have an anti-vibration device that is arranged and includes an elastic body fixed to the middle rail and the handrail (see Patent Document 1). The vibration preventing device prevents the handrail from vibrating in a strong wind.

  In a strong wind, the handrail tries to vibrate. At this time, the handrail tends to periodically shift in the horizontal direction with respect to the middle rail, and the elastic body is repeatedly deformed and restored by receiving an external force from the handrail. Thereby, the said vibration prevention apparatus absorbs the vibration energy which acts on the said handrail, and prevents the vibration of the handrail. If the handrail vibrates, the upper end portion of the handrail and the upper rail may slide to generate a noise, which may cause a noise problem. By preventing the vibration of the handrail by the vibration preventing device, it is possible to prevent the generation of the sound and prevent a noise problem from occurring.

Japanese Patent Laid-Open No. 2006-200210

  However, since the middle rail is disposed between the upper rail and the lower rail, the appearance of the handrail unit is impaired by the middle rail.

  An object of the present invention is to prevent a sound from being generated due to sliding between the upper end portion of the handrail and the upper rail during a strong wind without impairing the appearance of the handrail unit.

  According to the present invention, the vibration preventing device, which is disposed horizontally outward of each side portion of the upper end portion of the handrail, and is attached to the side portion and the upper rail, each of the handrail and the upper rail is arranged in a strong wind. By preventing the vibration, the upper end of the handrail and the upper rail are prevented from sliding to generate sound. Accordingly, the middle rail that is disposed between the upper rail and the lower rail and is fixed to the column and intersects with the handrail, the middle rail and the handrail, the middle rail, and the handrail. An anti-vibration device comprising an elastic body fixed to the child prevents the sound from being generated without impairing the appearance of the handrail unit by the middle rail as in the conventional case of preventing vibration of the handrail.

The handrail unit according to the present invention includes two support posts spaced apart in the first horizontal direction, an upper support and a lower support arranged between the support posts, each being fixed to the support post, Between the upper crosspiece and the lower crosspiece, the first horizontal direction is spaced, and each of the two is spaced between the first horizontal direction two side portions and the side portion. A plurality of handrails having an upper end portion having a top portion and a bottom portion spaced in a second horizontal direction perpendicular to the first horizontal direction, each upper end portion being attached to the upper rail, A plurality of handrails attached to the lower rail, and a first horizontal outward of each side portion of the upper end of each handrail, and attached to the side portion and the upper rail, Vibration prevention that prevents the handrail and the upper rail from vibrating in strong winds And a location. The vibration preventing device includes a rigid body having a side portion perpendicular to the first horizontal direction and a horizontal top portion provided on the side portion, and one surface bonded to a side portion of the rigid body . A sheet-like elastic body having a vertical portion parallel to the side portion and a vertical portion provided on the vertical portion and having one side bonded to the top of the rigid body and having a horizontal portion parallel to the top. The other surface of the portion is bonded to the side portion of the upper end portion of the handrail, and the other surface of the lateral portion has an elastic body bonded to the upper rail.

  When the handrail tries to vibrate in a strong wind, the upper end of the handrail tends to shift periodically in the first horizontal direction with respect to the upper rail. At this time, the elastic body is repeatedly deformed and restored by receiving an external force from the upper end of the handrail. Thereby, the said vibration prevention apparatus absorbs the vibration energy which acts on the said handrail, and prevents the vibration of the handrail. If the handrail vibrates, this vibration may be transmitted to the upper rail. At this time, the elastic body is repeatedly deformed and restored by receiving an external force from the upper rail. As a result, the vibration preventing device absorbs vibration energy acting on the upper rail and prevents the upper rail from vibrating. In this way, the vibration preventing device prevents vibrations of the handrail and the upper rail. Thereby, it can prevent that the said upper end part and the said upper crosspiece of the said handrail are slid, and can prevent generating a sound from the said handrail unit.

  In order to prevent the vibration of the handrail and the upper rail, the vibration preventing device, which is disposed horizontally outward of each side portion of the upper end portion of the handrail, and is attached to the side portion and the upper rail. An intermediate rail that is disposed between the upper rail and the lower rail and is fixed to the post and intersects with the handrail, and is disposed between the middle rail and the balustrade, the middle rail and the balustrade The anti-vibration device comprising an elastic body fixed to the rail can prevent the generation of the sound without impairing the appearance of the handrail unit by the intermediate rail as in the conventional case of preventing the handrail from vibrating.

An anti-vibration device according to the present invention includes two struts spaced apart in a first horizontal direction, an upper rail and a lower rail disposed between the struts, each being fixed to the struts. A first horizontal direction spaced between the upper crosspiece and the lower crosspiece, each between two side portions spaced apart in the first horizontal direction and the side portions A plurality of handrails having an upper end portion having a top portion and a bottom portion spaced apart in a second horizontal direction perpendicular to the first horizontal direction, each upper end portion being attached to the upper rail, lower end Ru used handrail unit including a plurality of balusters attached to the lower crosspiece. The vibration preventing device is disposed on the first horizontal direction of each side portion of the upper end portion of each balustrade, and is attached to the side portion and the upper beam. Prevents vibration. The vibration preventing device includes a rigid body having a side portion perpendicular to the first horizontal direction and a horizontal top portion provided on the side portion, and one surface bonded to a side portion of the rigid body . A vertical portion parallel to the side portion and a sheet-like elastic body provided on the vertical portion and having one side bonded to the top of the rigid body and having a horizontal portion parallel to the top. After the unit is manufactured, the other surface of the vertical portion is bonded to each side portion of the upper end portion of the handrail, and the other surface of the horizontal portion is bonded to the upper rail. The rigid body may have an inverted L-shaped cross section when viewed in a plane perpendicular to the second horizontal direction.

An anti-vibration device according to the present invention includes two struts spaced apart in the horizontal direction, an upper rail and a lower rail disposed between the struts, each being fixed to the strut, A handrail including a plurality of handrails disposed between the upper rail and the lower rail in a horizontal direction with upper ends attached to the upper rail and lower ends attached to the lower rail. Ru used in the unit. The vibration preventing device is disposed between two adjacent handrails, and is attached to the upper end of one handrail, the upper end of the other handrail, and the upper rail. Each of the upper bars is prevented from vibrating. The vibration preventing device is a rigid body having two horizontally opposed sides and a horizontal top provided between the sides, and a concave rigid body opened downward. A first vertical part and a second vertical part, which are horizontally spaced apart and have one surface bonded to one side of the rigid body and parallel to the one side. Is bonded to the other side portion of the rigid body and is provided between the second vertical portion parallel to the other side portion, the first vertical portion and the second vertical portion, and one surface of the rigid body A sheet-like elastic body bonded to the top portion and having a lateral portion parallel to the top portion, and after the handrail unit is manufactured, the other surface of the first vertical portion is one of two adjacent handrails. And the other surface of the second vertical portion is bonded to the upper end of the other handrail, And an elastic body other surface of Kiyoko portion is bonded to the upper crosspiece.

  According to the present invention, the anti-vibration device that is disposed horizontally outward of each side portion of the upper end portion of the handrail and is attached to the side portion and the upper rail, the handrail and the upper rail can be By preventing each from vibrating, it is possible to prevent the upper end portion of the handrail and the upper rail from sliding and generating sound without requiring an intermediate rail between the upper and lower rails. can do. Thereby, generation | occurrence | production of the said sound can be prevented, without impairing the external appearance of a handrail unit with the said middle crosspiece.

The front view of the handrail unit which concerns on 1st Example of this invention. FIG. 3 is a longitudinal sectional view of the vibration preventing device taken along line 2 in FIG. 1. FIG. 3 is a horizontal sectional view of the vibration preventing device taken along line 3 in FIG. 2. The longitudinal cross-sectional view of the vibration preventing apparatus which concerns on 2nd Example of this invention. The horizontal sectional view of the vibration preventing device concerning the 3rd example of the present invention. FIG. 6 is a longitudinal sectional view of the vibration preventing device taken along line 6 in FIG. 5. The longitudinal cross-sectional view of the vibration preventing apparatus which concerns on 4th Example of this invention. The longitudinal cross-sectional view of the vibration preventing apparatus which concerns on 5th Example of this invention. The front view of the handrail unit which concerns on 6th Example of this invention. FIG. 10 is a longitudinal sectional view of the vibration preventing device taken along line 10 in FIG. 9. The figure which shows the measured value of the sound which generate | occur | produced from the handrail unit. The figure which shows the difference of the measured value of the sound in case 1, and the measured value of the sound in case 2.

  As shown in FIG. 1, a vibration preventing device 12 is used in the handrail unit 10. The handrail unit 10 includes two struts 14 spaced apart in the first horizontal direction (the left-right direction in FIG. 1), and an upper rail that is disposed at a distance between the struts and is fixed to the struts 14. 16 and a lower rail 18 and a plurality of handrails 20 disposed between the upper rail 16 and the lower rail 18 at intervals in the first horizontal direction. Each of the support column 14, the upper beam 16, the lower beam 18, and the handrail 20 is made of a metal material such as aluminum. A headboard 22 that covers the upper rail is attached to the upper rail 16. The handrail unit 10 is installed on a veranda or a rooftop of an apartment house.

  The upper end 24 of each handrail 20 is attached to the upper rail 16, and the lower end 26 is attached to the lower rail 18. As shown in FIGS. 2 and 3, the upper end 24 has two side portions 28 spaced in the first horizontal direction, and a second horizontal direction perpendicular to the first horizontal direction between the side portions ( It has a top portion 30 and a bottom portion 32 that are spaced apart in the depth direction in FIG. The handrail 20 is hollow, and the upper end 24 and the lower end 26 are open.

  The upper end portion 24 of the handrail 20 is attached to the upper rail 16 in the first cylindrical shape that is disposed inward in the second horizontal direction of the top portion 30 of the upper end portion 24 and is fixed to the top portion and extends in the vertical direction. A member 34, a first screw 36 that passes through the upper rail 16 and is screwed into the first tubular member 34, and a second horizontal inward of the bottom portion 32 of the upper end 24, are fixed to the bottom portion. Further, the second cylindrical member 38 extending in the vertical direction and the second screw 40 that penetrates the upper rail 16 and is screwed into the second cylindrical member 38 are used. The first cylindrical member 34 is integrally formed with the top portion 30 of the upper end portion 24, and the second cylindrical member 38 is integrally formed with the bottom portion 32. As shown in FIG. 3, each of the first cylindrical member 34 and the second cylindrical member 38 has a C-shaped cross-sectional shape when viewed in a horizontal plane.

  The vibration preventing device 12 is disposed outward in the first horizontal direction of each side portion 28 of the upper end portion 24 of the handrail 20, and is attached to the side portion and the upper rail 16. The vibration preventing device 12 has a rigid body 46 having a side portion 42 perpendicular to the first horizontal direction and a horizontal top portion 44 provided on the side portion, and one surface bonded to the side portion 42. A longitudinal portion 48 parallel to the side portion and a sheet-like elastic body 52 provided on the longitudinal portion and having one side bonded to the top portion 44 and having a lateral portion 50 parallel to the top portion. . The other surface of the vertical portion 48 is bonded to the side portion 28 of the upper end portion 24 of the handrail 20, and the other surface of the horizontal portion 50 is bonded to the upper rail 16. The rigid body 46 has an inverted L-shaped cross section when viewed in a plane perpendicular to the second horizontal direction. The vibration preventing device 12 prevents the handrail 20 and the upper rail 16 from vibrating in a strong wind.

  The rigid body 46 may be made of steel or may be made of another metal such as aluminum. The rigid body 46 may be made of plastic instead of the above example made of metal. The elastic body 52 is made of synthetic resin or rubber. Examples of the synthetic resin include silicon resin and polyvinyl chloride resin, and examples of the rubber include chloroprene rubber and ethylene / propylene rubber. In the example shown in FIG. 2, the elastic body 52 is “VHB acrylic foam structure joining tape (manufactured by Sumitomo 3M Limited)”.

  When the handrail 20 is about to vibrate in a strong wind, the upper end portion 24 of the handrail tends to shift in the first horizontal direction with respect to the upper rail 16. At this time, the elastic body 52 is elastically deformed and restored by receiving an external force from the upper end portion 24 of the handrail 20. Accordingly, the vibration preventing device 12 absorbs vibration energy acting on the handrail 20 and prevents vibration of the handrail 20. If the handrail 20 vibrates, this vibration may be transmitted to the upper rail 16. In this case, the elastic body 52 is elastically deformed and restored by receiving an external force from the upper rail 16. Thereby, the vibration preventing device 12 absorbs vibration energy acting on the upper rail 16 and prevents the upper rail 16 from vibrating. As described above, the vibration preventing device 12 prevents the handrail 20 and the upper rail 16 from vibrating, so that the upper end portion 24 of the handrail 20 and the upper rail 16 can be prevented from being slid. It is possible to prevent sound from being generated.

  The vibration preventing device 12 disposed on each side portion 28 of the upper end portion 24 of the handrail 20 in the first horizontal direction and attached to the side portion and the upper rail 16 includes the handrail 20 and the upper rail 16. By preventing vibration, it is possible to prevent the generation of the sound without requiring an intermediate beam (not shown) between the upper beam 16 and the lower beam 18. For this reason, it is disposed between the upper rail and the lower rail and is fixed to the support post, and is disposed between the middle rail and the balustrade, and is disposed between the middle rail and the balustrade. The middle rail does not impair the appearance of the handrail unit unlike the conventional case in which the vibration preventing device comprising the elastic body fixed to the child prevents the handrail from vibrating.

  The vibration preventing device 12 may be disposed on the first horizontal portion 28 of each side portion 28 of the upper end portion 24 of the handrail 20 when the handrail unit 10 is manufactured, and may be attached to the side portion and the upper rail 16. , After the manufacture of the handrail unit having the column 14, the upper rail 16, the lower rail 18, and the balustrade 20, it is arranged on the first horizontal direction outward of each side portion 28 of the upper end portion 24 of the balustrade 20, You may attach to a side part and the upper crosspiece 16. FIG. That is, the vibration preventing device 12 may be used in an existing handrail unit having the support column 14, the upper rail 16, the lower rail 18, and the handrail 20. In this case, after the handrail unit is manufactured, the other surface of the vertical portion 48 of the elastic body 52 is bonded to the side portion 28 of the upper end portion 24 of the handrail 20, and the other surface of the horizontal portion 50 is attached to the upper rail 16. Glued. The rigid body 46 may have a square cross-sectional shape as shown in FIG. 4 instead of the example shown in FIG. 2 having an inverted L-shaped cross-sectional shape. The handrail 20 may be solid instead of the hollow example shown in FIG.

  In the example shown in FIG. 2, the elastic body 52 has a vertical portion 48 and a horizontal portion 50 that are integrally formed. Instead, a space is provided between the vertical portion 48 and the horizontal portion 50. May be. When the vertical portion 48 and the horizontal portion 50 are integrally formed, the one surface of the vertical portion 48 is on the side portion 42 of the rigid body 46, and the one surface of the horizontal portion 50 is on the top portion 44 of the rigid body 46. When bonding, the elastic body 52 tends to be loosened at the corners of the rigid body 46 (the boundary between the side portion 42 and the top portion 44). For this reason, it takes time and effort to prevent the elastic body 52 from slackening, and workability may be deteriorated. When a space is provided between the vertical portion 48 and the horizontal portion 50, the elastic body 52 can be prevented from existing at the corner of the rigid body 46. Thereby, there is no time and effort to prevent the elastic body 52 from slackening, and workability is not deteriorated.

  In the example shown in FIGS. 5 and 6, the handrail unit 10 is disposed at the first horizontal direction outward of each side portion 28 of the upper end portion 24 of the handrail 20, and is attached to the side portion and the upper rail 16. In addition to the prevention device (first vibration prevention device) 12, the second vibration is arranged on the top portion 30 of the upper end portion 24 of the handrail 20 in the second horizontal direction and is attached to the top portion and the upper rail 16. And a third vibration preventing device 56 disposed on the bottom portion 32 and the upper rail 16. The third vibration preventing device 56 is disposed outside the bottom portion 32 in the second horizontal direction. Thereby, each vibration of the handrail 20 and the upper crosspiece 16 can be prevented more reliably.

  Each of the second vibration preventing device 54 and the third vibration preventing device 56 includes a rigid body 46 having a side 42 perpendicular to the second horizontal direction and a horizontal top 44 provided on the side. A vertical portion 48 parallel to the side and one side bonded to the side portion 42 and a horizontal portion 50 parallel to the top portion provided on the vertical portion and one side bonded to the top portion 44. And a sheet-like elastic body 52 having. The other surface of the vertical portion 48 of the elastic body 52 of the second vibration preventing device 54 is bonded to the top portion 30 of the upper end 24 of the handrail 20, and the other surface of the horizontal portion 50 is bonded to the upper rail 16. . The other surface of the vertical portion 48 of the elastic body 52 of the third vibration preventing device 56 is bonded to the bottom portion 32 of the upper end portion 24 of the handrail 20, and the other surface of the horizontal portion 50 is bonded to the upper rail 16. .

  In the example shown in FIGS. 7 and 8, the vibration preventing device 12 has two side portions 42 opposed to each other in the first horizontal direction, and a horizontal top portion 44 provided between the side portions. A rigid body 46, and a first vertical portion 48a and a second vertical portion 48b spaced apart in the first horizontal direction, one surface of which is bonded to one side portion 42 of the rigid body 46; A parallel first vertical portion 48a and a second vertical portion 48b parallel to the other side portion, one surface of which is bonded to the other side portion 42 of the rigid body 46, a first vertical portion 48a and a second vertical portion 48b, And a sheet-like elastic body 52 having a lateral portion 50 parallel to the top portion, one surface of which is bonded to the top portion 44. The other surface of the first vertical portion 48a is bonded to the side portion 28 of the upper end portion 24 of one handrail 20a of two adjacent handrails 20a and 20b, and the other surface of the second vertical portion 48b is the other. The handrail 20b is bonded to the side portion 28 of the upper end 24, and the other surface of the lateral portion 50 is bonded to the upper rail 16. As described above, the vibration preventing device 12 is disposed between the two adjacent handrails 20a and 20b, and is attached to the upper end portion 24 of one handrail 20a, the upper end portion 24 of the other handrail 20b, and the upper rail 16. It has been.

  When the handrail unit 10 is manufactured, the vibration preventing device 12 is disposed between two adjacent handrails 20a and 20b, and the upper end 24 of one handrail 20a, the upper end 24 of the other handrail 20b, and the upper rail. 16 and may be disposed between two adjacent handrails 20a and 20b after the handrail unit having the support 14, the upper rail 16, the lower rail 18, and the handrail 20 is manufactured. The upper end 24 of one balustrade 20a, the upper end 24 of the other balustrade 20b, and the upper rail 16 may be attached. In this case, after the handrail unit is manufactured, the other surface of the first vertical portion 48a of the elastic body 52 is bonded to the upper end portion 24 of one handrail 20a, and the other surface of the second vertical portion 48b is the other surface. It is bonded to the upper end 24 of the handrail 20b, and the other surface of the horizontal portion 50 is bonded to the upper rail 16. In the example shown in FIG. 7, the rigid body 46 has a concave shape opened downward. Instead, as shown in FIG. 8, the rigid body 46 has a rectangular shape when viewed in a plane perpendicular to the second horizontal direction. It may have a cross-sectional shape.

  In the example shown in FIGS. 9 and 10, the vibration preventing device is used not only at the upper end portion 24 of the handrail 20 but also at the lower end portion 26. The lower end portion 26 of the handrail 20 has two side portions 58 spaced in the first horizontal direction and a top portion (not shown) spaced in the second horizontal direction between the side portions. And the bottom portion (not shown), and the handrail unit 10 is disposed outwardly in the first horizontal direction of each side portion 28 of the upper end portion 24 of the handrail 20, and is connected to the side portion and the upper rail 16. In addition to the attached vibration preventing device (upper end side vibration preventing device) 12, each side portion 58 of the lower end portion 26 of the handrail 20 is disposed outside the first horizontal direction and attached to the side portion and the lower rail 18. The lower end side vibration preventing device 60 is provided.

  The lower end vibration preventing device 60 includes a rigid body 66 having a side portion 62 perpendicular to the first horizontal direction and a horizontal bottom portion 64 provided below the side portion, and one surface is bonded to the side portion 62. A sheet-like elastic body 72 having a vertical portion 68 parallel to the side portion and a lateral portion 70 provided below the vertical portion and having one surface bonded to the bottom portion 64 and parallel to the bottom portion; Have The other surface of the vertical portion 68 is bonded to the side portion 58 of the lower end portion 26 of the handrail 20, and the other surface of the horizontal portion 70 is bonded to the lower rail 18. The lower end side vibration preventing device 60 prevents the handrail 20 and the lower rail 18 from vibrating during strong winds.

  The lower end side vibration preventing device 60 is disposed on the first horizontal direction outward of each side portion 58 of the lower end portion 26 of the handrail 20 at the time of manufacturing the handrail unit 10 and is attached to the side portion and the lower rail 18. In addition, after the manufacture of the handrail unit having the support post 14, the upper crosspiece 16, the lower crosspiece 18, and the handrail 20, the first side portion 58 of each side portion 58 of the lower end portion 26 of the handrail 20 is arranged outward in the first horizontal direction. It may be attached to the side portion and the lower rail 18. In this case, after the handrail unit is manufactured, the other surface of the vertical portion 68 of the elastic body 72 is bonded to the side portion 58 of the lower end portion 26 of the handrail 20, and the other surface of the horizontal portion 70 is attached to the lower rail 18. Glued.

  As shown in FIG. 11, the A characteristic sound pressure level of the sound generated from the handrail unit when the handrail unit received the second horizontal wind was measured. The wind speed is 9 m / s. The said measurement was performed about the following cases 1 and 2. In the case 1, as a comparative example, the A characteristic sound pressure level of the sound generated from the handrail unit when the handrail unit without the vibration preventing device 12 is receiving the wind was measured. As a result, the A characteristic sound pressure levels of the sounds having frequencies in the 2 kHz band, 2.5 kHz band, 3.15 kHz band, 4 kHz band, and 5 kHz band are 55.7 dB, 56.4 dB, 58.7 dB, 57. 1 dB and 55.3 dB, which are relatively high. It is considered that the sound having a relatively high frequency in the 2 kHz band to the 5 kHz band is generated when the handrail 20 receives the wind and the upper end portion 24 of the handrail 20 and the upper rail 16 slide. In addition, although the A characteristic sound pressure level of the sound which has a frequency of 315 Hz band is comparatively high, this sound is background noise, and sounds other than the sound generated from the handrail unit such as the sound generated from the blower. is there.

  In the case 2, the handrail unit 10 shown in FIG. 1 (the handrail unit 10 in a state where the vibration preventing device 12 is attached to the side portion 28 of the upper end 24 of the handrail 20 and the upper rail 16) is the second horizontal. The A characteristic sound pressure level of the sound generated from the handrail unit 10 when receiving wind in the direction was measured. As a result, as shown in FIG. 11, the A characteristic sound pressure levels of sounds having frequencies of 2 kHz band, 2.5 kHz band, 3.15 kHz band, 4 kHz band, and 5 kHz band are 54.0 dB, 50. 3 dB, 47.5 dB, 42.4 dB and 36.7 dB, which are very low. As shown in FIG. 12, the difference between the A characteristic sound pressure level of the sound generated from the handrail unit 10 in case 1 and the A characteristic sound pressure level of the sound generated from the handrail unit in case 2 is 2 kHz band, The frequencies in the 2.5 kHz band, 3.15 kHz band, 4 kHz band, and 5 kHz band are 1.7 dB, 6.1 dB, 11.2 dB, 14.7 dB, and 18.6 dB, respectively. From this result, the vibration preventing device 12 prevents the vibration of the handrail 20 and the upper rail 16, prevents the upper end portion 24 of the handrail 20 from sliding with the upper rail 16, and prevents the sound from the handrail unit 10. It turns out that generation | occurrence | production was prevented.

DESCRIPTION OF SYMBOLS 10 Handrail unit 12 Vibration prevention apparatus 14 Support | pillar 16 Upper bar 18 Lower bar 20 Handrail 24 Upper end part 26 Lower end part 28 Side part 30 Top part 32 Bottom part 42 Side part 44 Top part 46 Rigid body 48 Vertical part 50 Horizontal part 52 Elastic body

Claims (4)

Two struts spaced apart in a first horizontal direction;
An upper beam and a lower beam arranged with a space between the columns, each fixed to the column;
Between the upper crosspiece and the lower crosspiece, the first horizontal direction is spaced, and each of the two is spaced between the first horizontal direction two side portions and the side portion. A plurality of handrails having an upper end portion having a top portion and a bottom portion spaced in a second horizontal direction perpendicular to the first horizontal direction, each upper end portion being attached to the upper rail, A plurality of handrails attached to the lower rail,
Each of the handrails and the upper rail vibrate in a strong wind, which is disposed on the first horizontal direction of each side portion of the upper end portion of each handrail and is attached to the side portion and the upper rail. Including an anti-vibration device for preventing
The vibration preventing device includes a rigid body having a side perpendicular to the first horizontal direction and a horizontal top provided on the side.
One surface is bonded to the side of the rigid body and is provided on the vertical portion parallel to the side and the vertical portion, and one surface is bonded to the top of the rigid body and parallel to the top. A sheet-like elastic body having a horizontal portion, the other surface of the vertical portion being bonded to the side portion of the upper end portion of the handrail, and the other surface of the horizontal portion being bonded to the upper rail A handrail unit having an elastic body. Two struts spaced apart in the first horizontal direction; an upper rail and a lower rail disposed at intervals between the struts, each fixed to the strut; the upper rail and the lower rail; Between the two side portions spaced apart in the first horizontal direction and between the side portions orthogonal to the first horizontal direction. 2 A plurality of handrails having an upper end portion having a top portion and a bottom portion spaced in the horizontal direction, each upper end portion being attached to the upper rail, and lower end portion being attached to the lower rail. a plurality of Ru used handrail unit comprising a baluster, disposed in a first horizontal direction outwardly of each side portion of the upper ends of the balusters attached to said on crosspiece and the side portion, winds Vibration prevention to prevent each handrail and the upper rail from vibrating at times A location,
A rigid body having a side perpendicular to the first horizontal direction and a horizontal top provided on the side;
One surface is bonded to the side of the rigid body and is provided on the vertical portion parallel to the side and the vertical portion, and one surface is bonded to the top of the rigid body and parallel to the top. A sheet-like elastic body having a lateral portion, wherein after the handrail unit is manufactured, the other surface of the longitudinal portion is bonded to each side portion of the upper end portion of the handrail, and the other surface of the lateral portion is An anti-vibration device having an elastic body bonded to an upper rail.   The vibration preventing apparatus according to claim 2, wherein the rigid body has an inverted L-shaped cross-section when viewed in a plane perpendicular to the second horizontal direction. Two struts that are horizontally spaced apart, and an upper and lower rail that are spaced between the struts and fixed to the strut, and between the upper and lower rails are spaced horizontally, are the respective upper ends mounted on said crosspiece, lower end Ru used handrail unit including a plurality of balusters attached to the lower crosspiece, two adjacent Each balustrade and each upper rail vibrate during strong winds , which are arranged between two balustrades and are attached to the upper end of one balustrade, the upper end of the other balustrade and the upper rail. An anti-vibration device for preventing
A rigid body having two horizontally opposed sides and a horizontal top provided between the sides, the concave body being open downward;
A first vertical part and a second vertical part, which are horizontally spaced apart and have one surface bonded to one side of the rigid body and parallel to the one side. Is bonded to the other side portion of the rigid body and is provided between the second vertical portion parallel to the other side portion, the first vertical portion and the second vertical portion, and one surface of the rigid body A sheet-like elastic body bonded to the top portion and having a lateral portion parallel to the top portion, and after the handrail unit is manufactured, the other surface of the first vertical portion is one of two adjacent handrails. Elasticity that is bonded to the upper end of the handrail, the other surface of the second vertical portion is bonded to the upper end of the other handrail, and the other surface of the horizontal portion is bonded to the upper rail An anti-vibration device having a body.

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