JP5113366B2 - Vibration damping member for damping vibration of handrail, handrail unit including the same, and vibration damping method using the vibration damping member - Google Patents

Description

  The present invention relates to a vibration attenuating member for attenuating vibration of a handrail, a handrail unit including the same, and a vibration attenuating method using the vibration attenuating member.

  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 surface 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, the end face of the handrail and the cross are rubbed to generate an unpleasant sound. This sound is transmitted from the handrail unit to a neighboring dwelling unit through a concrete housing of a housing complex that supports the handrail unit, giving discomfort to neighboring 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 has a main body made of an elastic material, and the main body has a protruding edge at one end thereof (see Patent Document 1). The main body is fitted into at least one end portion of the handrail so as to be in contact with 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. Is done. The handrail is fixed to the bar by screwing a screw into the main body of the vibration damping member through the bar.
JP 2006-193935 A

  When the main body made of an elastic material comes into contact with the inner surface of the at least one end of the handrail, vibration of the handrail generated when the handrail receives wind can be attenuated. In addition, the protruding edge is disposed between the at least one end portion of the balustrade and the crosspiece, thereby preventing the at least one end portion of the handrail from contacting the crosspiece. It is possible to prevent an unpleasant sound from being generated by the vibration of the handrail.

  By the way, since the main body is fitted into the at least one end portion of the handrail so as to contact the inner surface without a gap, the vibration damping member is used for a handrail having a different cross-sectional shape or size. It is necessary to change the shape or size of the main body according to the shape or size of the cross section of the handrail. For this reason, the vibration damping member must be designed every time the shape or size of the cross section of the handrail changes. Further, since the vibration damping member is manufactured by casting, a mold must be made every time the shape or size of the cross section of the handrail changes. Therefore, a great amount of cost is required for designing and manufacturing the vibration damping member.

  Further, since the main body is fitted into the at least one end of the handrail so as to contact the inner surface without any gap, it takes a lot of time and labor to attach the vibration damping member to the handrail. For this reason, the vibration damping member cannot be efficiently attached to the handrail.

  An object of the present invention is to provide a vibration damping member that damps vibrations of a handrail, can deal with handrails having different cross-sectional shapes or dimensions, and can be attached efficiently by a handrail. It is.

  The vibration damping member according to the present invention is compatible with handrails having different cross-sectional shapes or dimensions because the main body arranged at a distance from the inner surface of the handrail is compressed and contacts the inner surface. It can be efficiently attached to the handrail.

  According to the present invention, a vibration damping member for damping vibration of a handrail has a main body made of an elastic material having a protruding edge at one end, and extends from the one end to the other end of the main body. A through-hole and a nut provided at the other end of the main body and aligned with the hole.

  The vibration damping member is attached to a handrail that is open at least at one end. The main body is disposed in the at least one end portion of the handrail at a distance from the inner surface of the end portion. The protruding edge is disposed between the at least one end of the handrail and the crosspiece. When the main body is compressed by rotation of a screw inserted into the hole through the bar and screwed into the nut, the main body is elastically deformed so as to contact the inner surface of the handrail.

  When the main body made of an elastic material comes into contact with the inner surface of the handrail, vibration of the handrail generated when the handrail receives wind can be attenuated. Further, by disposing the protruding edge between the at least one end of the balustrade and the crosspiece, it is possible to prevent the end surface of the handrail from rubbing against the crosspiece and generating an unpleasant sound. can do.

  Since the main body arranged at a distance from the inner surface of the balustrade is compressed and contacts the inner surface, the shape or size of the main body is changed in accordance with the shape or size of the cross section of the balustrade There is no need. For this reason, the vibration damping member can correspond to a handrail with a different cross-sectional shape or size, and it is not necessary to newly design the vibration damping member every time the shape or size of the handrail cross-section changes, Further, it is not necessary to newly make a mold used for manufacturing the vibration damping member. Therefore, the cost required for the design and manufacture of the vibration damping member can be reduced.

  In addition, since the main body is arranged at an interval with respect to the inner surface of the handrail, the time and labor required to attach the vibration damping member to the handrail are less than that of a conventional vibration damping member. . For this reason, the vibration damping member can be efficiently attached to the handrail.

  The elastic material is made of synthetic resin or rubber. The main body may be solid or hollow. By making the main body hollow, the main body is easily deformed, and the main body is easily brought into contact with the inner surface of the handrail.

  The main body has a pair of opposing side surfaces, and the length between both side surfaces may be substantially constant from the one end to the other end of the main body, or gradually increases from the one end to the other end. Then, it may be gradually reduced. When the main body is disposed in the at least one end of the handrail by gradually increasing from the one end of the main body toward the other end, and then gradually decreasing the length between the side surfaces, The distance between the main body and the inner surface of the handrail is relatively small between the one end and the other end of the main body. For this reason, it becomes easy to make the said main body contact the said inner surface of the said handrail.

  The main body may have a side portion having a bellows structure. Moreover, the said main body shall have a waveform intermediate part between the said one end part and the said other end part seeing in the longitudinal cross-section of this main body. In this case, the hole extends from the one end portion of the main body to the other end portion through the intermediate 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 has a main body made of an elastic material having a protruding edge at one end, a hole extending from the one end to the other end of the main body, penetrating the main body, and the other end of the main body. And a nut aligned with the hole. The main body is disposed in the at least one end portion of the handrail at a distance from the inner surface of the end portion, and the protruding edge is between the at least one end portion of the handrail and the crosspiece. The main body, which is disposed, is inserted into the hole through the bar, and is compressed by rotation of a screw screwed into the nut, is in contact with the inner surface of the handrail.

  According to the present invention, there is provided a vibration damping method for attenuating vibration of a handrail fixed to a crosspiece at one open end, a main body made of an elastic material having a protruding edge at one end, and the one end of the main body. Providing a vibration damping member having a hole extending to the other end and penetrating through the main body, and a nut provided in the other end of the main body and aligned with the hole; Being located in the one end portion of the balustrade, spaced from the inner surface of the one end portion, and arranged so that the protruding edge is located between the one end portion of the balustrade and the crosspiece, Inserting a screw into the hole through the bar and screwing it into the nut; and rotating the screw so that the body is compressed and contacts the inner surface of the handrail.

  According to the present invention, since the main body of the vibration damping member arranged at an interval with respect to the inner surface of the handrail is compressed and contacts the inner surface, the shape or size of the main body is set to the cross section of the handrail. There is no need to change according to shape or size. For this reason, the said vibration damping member can respond to the handrail which differs in the shape or dimension of a cross section. In addition, since the main body of the vibration damping member is disposed at a distance from the inner surface of the handrail, the vibration damping member can be efficiently attached to the handrail.

  As shown in FIGS. 1 to 3, 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. 3). 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.

  As shown in FIG. 2, the vibration damping member 12 includes a main body 26 made of an elastic material. The main body 26 has a protruding edge 30 at one end 28 thereof. The main body 26 is solid. The elastic material is made of synthetic resin such as silicon resin or polyvinyl chloride resin, or rubber such as chloroprene rubber or ethylene / propylene rubber. The main body 26 has a pair of opposite side surfaces 32, and in the illustrated example, the length between both side surfaces 32 is substantially constant from one end 28 to the other end 34 of the main body 26.

  The vibration damping member 12 further includes a hole 36 extending from one end portion 28 of the main body 26 to the other end portion 34, and a nut 38 provided at the other end portion 34 of the main body 26. The hole 36 is located in the center of the main body 26 and penetrates the main body 26. The nut 38 is aligned with the hole 36. The hole 36 is not provided with a thread.

  The main body 26 is disposed in the upper end portion 22 of the handrail 20 at a distance from the inner surface 40 of the upper end portion. When viewed in a cross section of the handrail 20, the cross section of the handrail 20 is rectangular, the cross section of the main body 26 is also rectangular, and the main body 26 is arranged at the center of the handrail 20 (FIG. 4). The protruding edge 30 is disposed between the end face 42 of the upper end portion 22 of the handrail 20 and the upper rail 16 (FIG. 2).

  The upper rail 16 is provided with a hole 44 aligned with the hole 36 of the vibration damping member 12. As shown in FIG. 3, the screw 46 is inserted into the hole 36 of the vibration damping member 12 through the hole 44 of the upper rail 16 and screwed into the nut 38. The main body 26 is compressed by rotating the screw 46. The compressed main body 26 is elastically deformed so as to spread in the horizontal direction, and comes into contact with a pair of opposing surface portions 48 of the inner surface 40 of the handrail 20 at both side surfaces 32 of the main body 26. The handrail 20 is fixed to the upper rail 16 by the main body 26 coming into contact with a pair of opposed surface portions 48 of the inner surface 40 of the handrail 20.

  The main body 26 in contact with the inner surface 40 of the handrail 20 attenuates the vibration of the handrail 20 generated when the handrail 20 receives wind. In order to attenuate the vibration of the handrail 20 more efficiently, the main body 26 comes into contact with the pair of opposing surface portions 48 of the inner surface 40 of the handrail 20, and in addition, another pair of the inner surfaces 40 of the handrail 20 that face each other. It is also preferable to contact the surface portion 50 (FIG. 4). 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.

  The protruding edge 30 disposed between the end surface 42 of the upper end portion 22 of the handrail 20 and the upper rail 16 prevents the end surface 42 of the upper end portion 22 of the handrail 20 from contacting the upper rail 16. This prevents the end surface 42 of the handrail 20 and the upper rail 16 from rubbing and generating unpleasant sounds. Note that the screw 46 in contact with the upper rail 16 is inserted into the hole 36 and thus does not contact the handrail 20. For this reason, the vibration of the handrail 20 is not transmitted to the upper rail 16 via the screw 46.

  Since the main body 26 is disposed at a distance from the inner surface 40 of the handrail 20, the vibration damping member 12 is placed on the handrail 20 compared to a conventional vibration damping member in which the main body is fitted into the inner surface of the handrail without any gap. It takes less time and effort to attach to the. For this reason, the vibration damping member 12 can be efficiently attached to the handrail 20.

  In addition, the main body 26 that is elastically deformed by the rotation of the screw 46 and comes into contact with the inner surface 40 of the handrail 20 returns to a state in which the main body 26 is spaced from the inner surface 40 of the handrail 20 by removing the screw 46. For this reason, the vibration damping member 12 can be easily removed from the handrail 20 and the vibration damping member 12 can be easily replaced.

  Since the main body 26 disposed at a distance from the inner surface 40 of the handrail 20 is compressed and contacts the inner surface 40, the shape or size of the main body 26 is changed to the shape or size of the cross section of the upper end portion 22 of the handrail 20. It is not necessary to change according to. For this reason, the vibration damping member 12 can cope with handrails having different cross-sectional shapes or dimensions. In the example illustrated in FIG. 5, the vibration damping member 12 is attached to a handrail 20 a having a cross-sectional shape different from that of the handrail 20 illustrated in FIG. 4. The handrail 20 has a rectangular cross-sectional shape, whereas the handrail 20a has a pair of opposing side portions 52 having an arcuate cross-sectional shape. Since the vibration damping member 12 can cope with a handrail having a different cross-sectional shape or size, it is not necessary to newly design the vibration damping member 12 every time the cross-sectional shape or size of the handrail changes. There is no need to make a new mold to be used for manufacturing the member 12. Therefore, the cost required for the design and manufacture of the vibration damping member can be reduced.

  On the inner surface 40a of the handrail 20a, a cylindrical metal fitting 54 that is screwed into a screw (not shown) for directly fixing the handrail 20a to the upper rail 16 is provided in advance. A thread is provided on the inner surface of the metal fitting 54. When the handrail is a standard product, the metal fitting 54 is often provided in advance on the inner surface of the handrail. Since the main body 26 is disposed at a distance from the inner surface 40a of the handrail 20a, the vibration damping member 12 can also be applied to the handrail 20a in which the metal fitting 54 is provided on the inner surface 40a.

  In order to attenuate the vibration of the handrail 20 using the vibration damping member 12, first, the main body 26 is spaced from the inner surface 40 of the upper end portion of the vibration damping member 12 within the upper end portion 22 of the handrail 20. In addition, the projecting edge 30 is disposed so as to be positioned between the upper end portion 22 of the handrail 20 and the upper rail 16 (FIG. 2). Next, the screw 46 is inserted into the hole 36 through the upper bar 16 and screwed into the nut 38 (FIG. 3). Thereafter, the screw 46 is rotated so that the main body 26 is compressed and contacts the inner surface 40 of the handrail 20. When the screw 46 is rotated, the main body 26 is compressed in the vertical direction and elastically deformed so as to spread in the horizontal direction, and comes into contact with the inner surface 40 of the handrail 20. In this way, by bringing the main body 26 made of an elastic material into contact with the inner surface 40 of the handrail 20, the vibration of the handrail 20 that occurs when the handrail 20 receives wind is attenuated.

  In the example shown in FIGS. 6 to 8, the main body 26a of the vibration damping member 12a is hollow instead of the solid examples shown in FIGS. Since the main body 26a is hollow, the main body 26a is easily deformed as compared with a solid case. For this reason, it becomes easier to compress the main body 26 a by the rotation of the screw 46 and to contact the inner surface 40 of the handrail 20.

  The main body 26a has a hollow portion 56, and the hollow portion communicates with the hole 36a (FIG. 6). The hollow portion 56 is partitioned by a pair of opposing side portions 58 of the main body 26a. The thickness of each side portion 58 gradually decreases from one end portion 28a of the main body 26a toward the other end portion 34a, and then gradually increases. For this reason, the thickness of each side part 58 is comparatively thin between the one end part 28a and the other end part 34a of the main body 26a.

  The main body 26a is disposed in the upper end portion 22 of the handrail 20 at a distance from the inner surface 40 of the upper end portion (FIG. 6), inserted into the hole 36a through the upper bar 16, and screwed into the nut 38a. The screw 46 is compressed by the rotation of the screw 46 and contacts the inner surface 40 of the handrail 20 (FIG. 7). Since the thickness of each side portion 58 is relatively thin between the one end portion 28a and the other end portion 34a of the main body 26a, the thickness of each side portion 58 is constant from the one end portion 28a to the other end portion 34a of the main body 26a. Compared with a case, it becomes easy to compress the main body 26a, and it becomes easy to contact the main body 26a with the inner surface 40 of the handrail 20.

  The hollow portion 56 of the main body 26a is not opened in the example shown in FIG. 8, but instead, the hollow portion 56 opened to the front (lower side of the drawing) and the rear (upper side of the drawing) of the main body 26a, or of the main body 26a. It may be open to the right (left of the drawing) and left (right of the drawing).

  In the example shown in FIG. 9, the main body 26b has a length between the side surfaces 32b instead of the example shown in FIG. 6 in which the length between the side surfaces 32a is substantially constant from the one end 28a to the other end 34a of the main body 26a. Gradually increases from one end 28b of the main body 26b toward the other end 34b, and then gradually decreases. Each side surface 32b consists of two inclined flat surfaces.

  The main body 26b is disposed in the upper end portion 22 of the handrail 20 at a distance from the inner surface 40 of the upper end portion, and is inserted into the hole 36b through the upper rail 16 and screwed into the nut 38b (see FIG. (Not shown) and compressed by rotation of each side 32b to contact the inner surface 40 of the handrail 20 at each side surface 32b.

  When the main body 26b is disposed in the upper end portion 22 of the handrail 20 by the length between the side surfaces 32b of the main body 26b gradually increasing from one end portion 28b of the main body 26b toward the other end portion 34b and then gradually decreasing. The distance between each side surface 32b of the main body 26b and the inner surface 40 of the handrail 20 is relatively small between the one end 28b and the other end 34b of the main body 26b. For this reason, it becomes easy to make the main body 26b contact the inner surface 40 of the handrail 20. In the example illustrated in FIG. 10, each side surface 32 c of the main body 26 c is formed of a curved curved surface instead of the example illustrated in FIG. 9 including two inclined planes.

  In the example shown in FIG. 11, the main body 26d has a side portion 60 having a bellows structure. The main body 26d is disposed in the upper end portion 22 of the handrail 20 at a distance from the inner surface 40 of the upper end portion, and is inserted into the hole 36d through the upper rail 16 and screwed into the nut 38d (see FIG. (Not shown) and is compressed by the rotation of the side portion 60 and contacts the inner surface 40 of the handrail 20 at the side portion 60.

  12 and 13, the main body 26e has a corrugated intermediate portion 62 between one end portion 28e and the other end portion 34e when viewed in the longitudinal section of the main body. The hole 36e extends from the one end portion 28e of the main body 26e to the other end portion 34e via the intermediate portion 62e. The main body 26e is disposed in the upper end portion 22 of the handrail 20 at a distance from the inner surface 40 of the upper end portion (FIG. 12). The main body 26e is compressed by the rotation of the screw 46 inserted into the hole 36e through the upper bar 16 and screwed into the nut 38e, and comes into contact with a pair of opposed surface portions 48 of the inner surface 40 of the handrail 20 at the intermediate portion 62. (FIG. 13).

  The main body 26e may further include another intermediate portion (not shown) corresponding to the intermediate portion 62 rotated by 90 degrees with respect to the hole 36e. In this case, the main body 26 compressed by the rotation of the screw 46 comes into contact with a pair of opposing surface portions 48 of the inner surface 40 of the handrail 20 at the intermediate portion 62, and the inner surface 40 of the handrail 20 at the other intermediate portion. The other pair of face parts (not shown) facing each other. Thereby, the damping effect of the vibration of the handrail 20 can be enhanced.

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 based on 1st Example of this invention is arrange | positioned in a handrail. The longitudinal cross-sectional view in the line 2 of FIG. 1 when the main body of the vibration damping member which concerns on 1st Example of this invention is compressed by rotation of a screw. FIG. 3 is a sectional view taken along line 4 in FIG. 2. The cross-sectional view of a vibration damping member when the vibration damping member according to the first embodiment of the present invention is disposed in another handrail. The longitudinal cross-sectional view of a vibration damping member when the vibration damping member which concerns on 2nd Example of this invention is arrange | positioned in a handrail. The longitudinal cross-sectional view of a vibration attenuation member when the main body of the vibration attenuation member which concerns on 2nd Example of this invention is compressed by rotation of a screw. Sectional drawing in the line 8 of FIG. The longitudinal cross-sectional view of a vibration damping member when the vibration damping member which concerns on 3rd Example of this invention is arrange | positioned in a handrail. The longitudinal cross-sectional view of a vibration damping member when the vibration damping member which concerns on 4th Example of this invention is arrange | positioned in a handrail. The longitudinal cross-sectional view of a vibration damping member when the vibration damping member which concerns on 5th Example of this invention is arrange | positioned in a handrail. The longitudinal cross-sectional view of a vibration damping member when the vibration damping member which concerns on 6th Example of this invention is arrange | positioned in a handrail. The longitudinal cross-sectional view of a vibration damping member when the main body of the vibration damping member according to the sixth embodiment of the present invention is compressed by the rotation of a screw.

Explanation of symbols

10 Handrail unit 12, 12a, 12b, 12c, 12d, 12e Vibration damping member 14 Post 16, 18 Cross 20, 20a Handrail 22 Upper end of handrail 24 Lower end of handrail 26, 26a, 26b, 26c, 26d, 26e body 28, 28a, 28b, 28c, 28d, 28e one end of the body 30, 30a, 30b, 30c, 30d, 30e projecting edge 32, 32a, 32b, 32c side surface 34, 34a, 34b, 34c, 34d, 34e Other end portion of main body 36, 36a, 36b, 36c, 36d, 36e Hole 38, 38a, 38b, 38c, 38d, 38e Nut 40, 40a Inner surface of handrail 46 Screw 60 Side portion of main body 62 Intermediate portion

Claims (7)

A pair of struts arranged at intervals, a pair of bars arranged at intervals between the pillars, and a plurality of at least one end portions arranged at intervals between the bars A handrail unit comprising a handrail and a vibration damping member attached to at least one end of each handrail,
The vibration damping member is
A body made of an elastic material having a protruding edge at one end;
A hole extending from the one end of the main body to the other end and penetrating the main body;
A nut provided at the other end of the body and aligned with the hole;
A hollow portion provided in the main body, surrounding a periphery of the hole between one end of the main body and the nut, and communicating with the hole;
When the protruding edge of the main body is disposed between the end portion of the handrail and the crosspiece,
The main body is disposed in the at least one end portion of the handrail at a distance from the inner surface of the end portion,
The handrail unit, wherein the main body compressed by rotation of a screw inserted into the hole through the bar and screwed into the nut is in contact with the inner surface of the handrail.   2. The handrail unit according to claim 1, wherein the main body of the vibration damping member has a pair of opposing side surfaces, and the length between both side surfaces is substantially constant from the one end to the other end of the main body.   The main body of the vibration damping member has a pair of opposing side portions that define the hollow portion, and the thickness of each side portion gradually decreases from the one end portion to the other end portion of the main body, and then gradually increases. The handrail unit according to claim 2.   The main body of the vibration damping member has a pair of opposite side surfaces, and the length between both side surfaces gradually increases from the one end portion to the other end portion of the main body, and then gradually decreases. Handrail unit.   The handrail unit according to claim 1, wherein a main body of the vibration damping member has a side portion of a bellows structure.   The handrail unit according to claim 1, wherein the elastic material is made of synthetic resin or rubber. A vibration damping method for attenuating the vibration of the handrail fixed to the crosspiece at the opened one end,
A main body made of an elastic material having a protruding edge at one end, a hole extending from the one end of the main body to the other end and penetrating the main body, provided at the other end of the main body, Providing a vibration damping member having an aligned nut and a hollow portion provided in the main body and surrounding the hole and communicating with the hole between one end of the main body and the nut;
The vibration damping member is configured such that a protruding edge of the main body is located between the end portion of the balustrade and the crosspiece, the main body is located in the one end portion of the balustrade, and the inner surface of the one end portion Arrange them to be spaced apart,
Inserting a screw through the bar into the hole and screwing into the nut;
A vibration damping method comprising rotating the screw so that the main body is compressed and contacts the inner surface of the handrail.

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