JP5150093B2 - Vibration damping member for attenuating vibration of handrail, handrail including the same, and handrail unit including the same - Google Patents

Description

  The present invention relates to a vibration damping member for attenuating vibration of a handrail, a handrail provided with the same, and a handrail unit provided with the same.

  Handrail units are installed on the veranda and rooftop of apartment buildings. The handrail unit includes a pair of struts arranged at intervals, a pair of bars arranged at intervals between the columns, and a plurality of hollow handrails arranged at intervals between the bars. Including. The column, the crosspiece, and the handrail are made of a metal material such as aluminum. The handrail is fixed to the crosspiece by a screw, and an end portion of the handrail is in contact with the crosspiece.

  When the handrail receives a wind at a specific wind speed, the handrail vibrates. At this time, an unpleasant sound is generated due to rubbing between the end portion of the handrail and the crosspiece. This sound is transmitted to the adjacent dwelling unit and gives discomfort to the residents.

In order to attenuate the vibration of the handrail generated when the handrail receives wind, a vibration damping member is used. A conventional vibration damping member is made of an elastic body having a protruding edge at one end (see Patent Document 1).
JP 2006-193935 A

  The vibration damping member is attached to the end portion of the handrail. The elastic body is fitted into the end portion of the handrail so as to contact the inner surface of the end portion, and the protruding edge is disposed between the end portion of the handrail and the crosspiece. A screw is screwed into the elastic body through the crosspiece, whereby the vibration damping member is fixed to the crosspiece.

  By bringing the elastic body into contact with the inner surface of the handrail, vibration of the handrail generated when the handrail receives wind can be attenuated. Further, by arranging the protruding edge between the end portion of the handrail and the crosspiece, it is possible to prevent the end portion of the handrail and the crosspiece from contacting each other. For this reason, the said edge part of the said handrail and the said cross | piece do not rub, and an unpleasant sound does not generate | occur | produce.

  A force is applied to the balustrade in a direction perpendicular to the axis of the balustrade by an impact force, human power, or the like when an object collides with the balustrade. At this time, the handrail is bent by the force and deforms the elastic body fitted into the end portion of the handrail. Thereby, the elastic body moves relative to the screw, and the screw comes out of the elastic body. For this reason, the vibration damping member is not firmly fixed to the crosspiece.

  An object of the present invention is a vibration damping member that damps vibration of a handrail, which can more firmly fix the vibration damping member to a crosspiece, a handrail provided with the handrail, and a handrail provided with the handrail. Is to provide a unit.

  The vibration damping member according to the present invention makes it possible to firmly fix the vibration damping member to the crosspiece by allowing the screw to be screwed or screwed into a rigid body located inside the elastic body. .

According to the present invention, a vibration damping member for attenuating vibration of a handrail disposed between a pair of bars disposed at a distance between a pair of support posts and fixed to the bars is projected to one end. And an elastic body having an edge, and a rigid body that is entirely or partially inside the elastic body and capable of screwing or screwing screws.

  The vibration damping member is attached to a handrail that is open at least at one end. The elastic body is fitted into the at least one end portion of the handrail so as to contact the inner surface of the end portion, and the protruding edge is disposed between the at least one end portion of the handrail and the crosspiece. The A screw extends into the rigid body through the crosspiece and is screwed or screwed into the rigid body. Accordingly, the screw is coupled to the rigid body, and the vibration damping member is fixed to the crosspiece.

  The elastic body in contact with the inner surface of the balustrade attenuates vibration of the balustrade that occurs when the balustrade receives wind. The protruding edge disposed between the at least one end of the handrail and the cross prevents the at least one end of the handrail from contacting the cross. Therefore, the at least one end of the handrail and the cross do not rub against each other so that an unpleasant sound is not generated.

  When a force in a direction perpendicular to the axis is applied to the handrail, the handrail is bent by the force and deforms the elastic body. Since the screw is coupled to the rigid body inside the elastic body, even if the elastic body is deformed, the screw does not come out of the vibration damping member.

  The rigid body may have one end located inside the elastic body and the other end exposed at the other end of the elastic body. The vibration damping member may have a hole or a female screw formed on the rigid body and extending from the one end portion to the other end portion of the elastic body. The hole or the female screw is opened on the one end side.

  The rigid body preferably has a polygonal cross-sectional shape. Since the rigid body having a polygonal cross-sectional shape is larger in reaction force from the elastic body when the screw is screwed into or screwed into the rigid body than the rigid body having a circular cross-sectional shape, the screw is screwed in. Or it is hard to produce the rotation by screwing.

  A handrail according to the present invention, comprising a vibration damping member having an elastic body having a protruding edge at one end and a rigid body that is entirely inside the elastic body and can be screwed or screwed, is opened. At least one end portion is provided, and the elastic body is fitted into the at least one end portion so as to contact an inner surface of the end portion.

  A handrail unit according to the present invention includes a pair of struts arranged at intervals, a pair of bars arranged at intervals between the columns, and at least one arranged at intervals between the bars. And a vibration damping member attached to the at least one end of each handrail. The vibration damping member includes an elastic body having a protruding edge at one end and a rigid body that is entirely located inside the elastic body. The elastic body is fitted into the at least one end portion of the handrail so as to contact the inner surface of the end portion, and the protruding edge is disposed between the at least one end portion of the handrail and the crosspiece. A screw extends through the bar into the rigid body and is screwed or screwed into the rigid body.

  According to the present invention, since the screw is coupled to the rigid body inside the elastic body, the screw does not come off from the vibration damping member when the elastic body is deformed by deformation of the handrail that has received force, The vibration damping member can be firmly fixed to the crosspiece.

  As shown in FIGS. 1 and 2, a vibration damping member 12 is used in the handrail unit 10. The handrail unit 10 includes a pair of struts 14 arranged at intervals, a pair of crosspieces (upper crosspiece 16 and lower crosspiece 18) arranged at intervals between the struts, and a gap between the crosspieces. And a plurality of handrails 20 arranged. The column 14, the upper beam 16, the lower beam 18, and the handrail 20 are made of a metal material such as aluminum. In consideration of aesthetics, the top rail 16 is provided with a headboard 22 that covers the top rail 16. The handrail unit 10 is installed on a veranda or a rooftop of an apartment house.

  The handrail unit 10 includes a vibration damping member 12 attached to at least one end of each handrail 20 (FIG. 2). Each handrail 20 is formed of a hollow member, and the vibration damping member 12 is attached to the upper end portion 22 of each handrail 20. The vibration damping member 12 may be attached to the lower end 24 of each handrail 20 instead of the illustrated example attached to the upper end 22 of each handrail 20, or the upper end 22 of each handrail 20. And the lower end 24 may be attached to both. Each handrail 20 may be made of a solid member in which at least one of the upper end 22 and the lower end 24 is opened instead of the illustrated example of a hollow member.

  In the example shown in FIG. 2, the vibration damping member 12 includes an elastic body 26 and a rigid body 28 that is located entirely inside the elastic body 26. The elastic body 26 has a protruding edge 32 at one end 30 thereof.

  The elastic body 26 is made of a rubber material such as chloroprene rubber or ethylene / propylene rubber, or a soft synthetic resin material such as silicon resin or polyvinyl chloride resin. The rigid body 28 is made of a metal material such as carbon steel, stainless steel, or aluminum, or a hard synthetic resin material such as polypropylene resin, polyethylene resin, or polyvinyl chloride resin.

  The vibration damping member 12 has a hole 34a formed in the elastic body 26 and opened at one end 30 of the elastic body, and a female screw 36 formed in the rigid body 28 and communicating with the hole 34a. The female screw 36 extends from the one end 30 of the elastic body toward the other end 38, and communicates with the hole 34a on the one end 30 side. The vibration damping member 12 further has a hole 34b formed in the elastic body 26 and opened at the other end 38 of the elastic body, and the female screw 36 communicates with the hole 34b on the other end 38 side.

The elastic body 26 has a side portion 40 between both end portions 30 and 38 and is fitted into the upper end portion 22 of the handrail 20 so that the inner surface 42 of the upper end portion and the side portion 40 are in contact with each other. The protruding edge 32 is disposed between the upper end portion 22 of the handrail 20 and the upper rail 16. The upper rail 16 is provided with a through hole 44 aligned with the hole 34 a, and a screw 46 is inserted into the hole 34 a of the elastic body 26 through the through hole 44 and screwed into the rigid body 28. As a result, the screw 46 is coupled to the rigid body 28 and the vibration damping member 12 is fixed to the upper rail 16.

  The screw 46 screwed into the rigid body 28 passes through the rigid body 28 and the elastic body 26 through the hole 34a, the female screw 36, and the hole 34b. The screw 46 does not need to penetrate the rigid body 28 and the elastic body 26 instead of the illustrated example that penetrates the rigid body 28 and the elastic body 26.

  Instead of the illustrated example in which the internal thread 36 is formed, the rigid body 28 is formed with a hole (not shown) having no thread, and the hole extends from one end 30 to the other end 38 of the elastic body. It may be. In this case, the hole communicates with a hole 34a formed in the elastic body 26, and the screw 46 inserted into the hole 34a is screwed into the rigid body 28 while being inserted into the hole.

  The vibration damping member 12 is replaced with the illustrated example having the holes 34 a and 34 b formed in the elastic body 26 and the female screw 36 formed in the rigid body 28, and both the holes 34 a and 34 b are formed in the elastic body 26. It is also possible that the rigid body 28 is not formed with the internal thread 36. In this case, the screw 46 is screwed into the one end 30 of the elastic body 26 and the rigid body 28.

  As shown in FIG. 3, the elastic body 26 has a cross-sectional shape corresponding to the cross-sectional shape of the handrail 20. In the illustrated example, the cross-sectional shape of the handrail 20 is a rectangle, and the cross-sectional shape of the elastic body 26 is a rectangle. The cross-sectional shape and size of the elastic body 26 can be arbitrarily changed according to the cross-sectional shape and size of the handrail 20.

  In the illustrated example, a screw hole 48 for screwing a screw (not shown) for directly fixing the handrail 20 to the upper rail 16 is formed in the inner surface 42 of the handrail 20 in advance. The screw hole 48 has a thread on its inner surface 50. When the handrail is a standard product, such a screw hole is often formed in advance on the inner surface of the handrail. A groove 52 for receiving the screw hole 48 is formed in the side portion 40 of the elastic body 26 so that the elastic body 26 does not contact the screw hole 48.

  The rigid body 28 is positioned substantially at the center of the elastic body 26 when viewed in a cross section of the vibration damping member 12 (FIG. 3). The cross-sectional shape of the rigid body 28 is a rectangle. The rigid body 28 may be designed and manufactured for use in the vibration damping member 12 or may be a standard nut. The vibration damping member 12 is manufactured by molding the elastic body 26 so that the rigid body 28 is positioned therein.

  The cross-sectional shape of the rigid body 28 may be a circle, a triangle, a hexagon, or another polygon instead of the illustrated example of a rectangle. When the rigid body 28 has a polygonal cross-sectional shape, the rigid body 28 has a large reaction from the elastic body 26 when the screw 46 is screwed or screwed into the rigid body 28, compared to when the rigid body has a circular cross-sectional shape. Receive power. For this reason, it is easy to prevent the rigid body 28 from rotating due to the rotation of the screw 46.

  By bringing the elastic body 26 into contact with the inner surface 42 of the handrail 20, the vibration of the handrail 20 generated when the handrail 20 receives wind is attenuated. In order to further enhance the vibration damping effect of the handrail 20, the vibration damping member 12 is preferably attached to both the upper end portion 22 and the lower end portion 24 of the handrail 20.

By disposing the protruding edge 32 between the upper end portion 22 of the handrail 20 and the upper rail 16, the upper end portion 22 of the handrail 20 and the upper rail 16 are prevented from contacting each other. Thereby, the upper end portion 22 of the handrail 20 and the upper rail 16 are rubbed to prevent unpleasant sounds. Since the elastic body 26 exists between the rigid body 28 screwed with the screw 46 and the handrail 20, the vibration of the handrail 20 is transmitted to the upper rail 16 through the rigid body 28 and the screw 46. Absent.

  The balustrade 20 receives a force in a direction perpendicular to the axis of the balustrade 20 by an impact force, human power, or the like when an object collides with the balustrade. At this time, the handrail 20 is deformed to be bent by the force, and the elastic body 26 is deformed by this deformation. Even when the elastic body 26 is deformed in this manner, the screw 46 is coupled to the rigid body 28 inside the elastic body 26, and therefore does not come out of the vibration damping member 12. For this reason, the vibration damping member 12 is firmly fixed to the upper rail 16.

  In the example shown in FIG. 4, instead of the example shown in FIG. 2 in which the entire rigid body 28 is located inside the elastic body 26, one end portion 54 of the rigid body 28 is exposed at one end portion 30 of the elastic body 26. The other end 56 of 28 is located inside the elastic body 26.

  The vibration damping member 12 has a female thread 36 formed on the rigid body 28 and extending from one end 30 to the other end 38 of the elastic body. The female screw 36 is opened on the one end 30 side. The screw 46 is screwed into the rigid body 28 through the through hole 44 of the upper rail 16. Instead of the illustrated example in which the internal thread 36 is formed in the rigid body 28, the internal thread 36 may not be formed in the rigid body 28, or a hole (not shown) is formed in the rigid body 28, and the hole is formed in the rigid body 28. It may be opened at one end 54. In these cases, the screw 46 is screwed into the rigid body 28.

  The vibration damping member 12 is replaced with the example shown in FIG. 4 in which one end 54 of the rigid body 28 is exposed at one end 30 of the elastic body 26 and the other end 56 of the rigid body 28 is located inside the elastic body 26. The one end 54 of the rigid body 28 may be located inside the elastic body 26, and the other end 56 of the rigid body 28 may be exposed at the other end 38 of the elastic body 26.

  In the example shown in FIG. 5, the other end 56 of the rigid body 28 is exposed at the other end 38 of the elastic body 26 instead of the example shown in FIG. 4 where the other end 56 of the rigid body 28 is located inside the elastic body 26. doing. One end portion 54 of the rigid body 28 is exposed at one end portion 30 of the elastic body 26, and an intermediate portion 58 of the rigid body 28 is located inside the elastic body 26.

  When at least one of the one end portion 54 and the other end portion 56 of the rigid body 28 is exposed, the vibration damping member 12 is manufactured by molding the elastic body 26 so that a part of the rigid body 28 is located inside. Alternatively, the rigid body 28 may be bonded to the molded elastic body 26 and manufactured.

  When the one end portion 54 of the rigid body 28 is in the vicinity of the one end portion 30 of the elastic body 26 or is exposed at the one end portion 30 of the elastic body 26, the length of the screw 46 can be made relatively short. The cost required for fixing the vibration damping member 12 to the upper rail 16 can be reduced.

  As the screw 46 is screwed or screwed into the rigid body 28, the rigid body 28 receives a downward force from the screw 46. When the other end 56 of the rigid body 28 is inside the elastic body 26, the other end 38 of the elastic body 26 prevents the rigid body 28 from falling off the elastic body 26 due to the force. For this reason, the other end portion 38 of the rigid body 28 is preferably inside the elastic body 26.

The front view of the handrail unit which concerns on this invention. The longitudinal cross-sectional view in the line 2 of FIG. 1 when the vibration damping member which concerns on 1st Example of this invention is attached to a handrail. FIG. 3 is a cross-sectional view taken along line 3 in FIG. 2. The longitudinal cross-sectional view of the vibration damping member which concerns on 2nd Example of this invention. The longitudinal cross-sectional view of the vibration damping member which concerns on 3rd Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Handrail unit 12 Vibration damping member 14 Support | pillar 16,18 Crosspiece 20 Handrail 22 Upper end part 24 Lower end part 26 Elastic body 28 Rigid body 30 One end part of elastic body 32 Projection edge 36 Female screw 38 Other end part of elastic body 46 Screw 54 Rigid body One end 56 The other end of the rigid body

Claims (5)

A vibration attenuating member for attenuating vibration of a handrail having at least one open end, which is disposed between a pair of bars disposed at a distance between a pair of columns and is fixed to the bar. Because
An elastic body having a protruding edge at one end, and a rigid body that is entirely inside the elastic body and can be screwed or screwed into a screw extending through the crosspiece,
The elastic body is fitted into at least one end portion of the handrail so as to contact the inner surface of the end portion in order to attenuate vibration of the handrail,
A vibration damping member in which the screw is prevented from coming off from the vibration damping member when the elastic body is deformed by deformation of the handrail that receives force by screwing or screwing the screw into the rigid body.   The vibration damping member according to claim 1, wherein the rigid body has a polygonal cross-sectional shape.   2. The vibration damping member according to claim 1, wherein the vibration damping member has a hole or a female screw that is formed in the rigid body and extends from the one end portion toward the other end portion of the elastic body and that is open on the one end side. . A handrail having at least one open end disposed between a pair of bars disposed at a distance between a pair of columns and fixed to the bars;
A vibration damping member comprising: an elastic body having a protruding edge at one end; and a rigid body that is entirely inside the elastic body and capable of screwing or screwing a screw extending through the crosspiece,
The elastic body is fitted into the at least one end portion so as to contact the inner surface of the end portion for damping the vibration of the handrail,
A handrail that prevents the screw from coming off from the vibration damping member when the elastic body is deformed by deformation of the handrail that has received force by screwing or screwing the screw into the rigid body. A pair of struts spaced apart, a pair of bars spaced apart between the struts, and at least one end spaced between and fixed to the bars A handrail unit comprising a plurality of handrails whose parts are opened and a vibration damping member attached to the at least one end of each handrail,
The vibration damping member includes an elastic body having a protruding edge at one end, and a rigid body that is entirely located inside the elastic body,
The elastic body is fitted into the at least one end of the handrail so as to be in contact with the inner surface of the handrail for damping vibration of the handrail, and the protruding edge is at least one of the handrails. It is arranged between an end and the crosspiece, and a screw extends into the rigid body through the crosspiece, and is screwed or screwed into the rigid body. By screwing or screwing the screw into the rigid body, A handrail unit in which the screw is prevented from coming off from the vibration damping member when the elastic body is deformed by deformation of the handrail that has received force.

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