JP2006226038A - Vibration damping device and vertically installed member with excellent damping property - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vibration damping device having a high damping performance even for vibrations with frequencies varying from high frequencies to low frequencies and used for vertically installed member such as illumination poles, sign poles, and signal poles vertically installed on roads and bridges and the vertically installed member with excellent damping property. <P>SOLUTION: This vibration damping device 1 comprises a vertical hollow body 10 in which a suspended member 1 is suspended. The vibration damping device is fitted to the vertical hollow body 10 in such a state that the axis of a suspended member 11 is aligned with the axis of the vertical hollow body 10 and the lower end part of the suspended member 11 is movable in the horizontal direction through a spring 22. In the vertically installed member with excellent damping property, a damping property is given to the vertically installed member itself or the vibration damping device is installed on the outside or inside of the vertically installed member to provide the damping property. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a vibration damping device and a standing member excellent in vibration damping performance. Specifically, the present invention relates to a vibration control device used for a standing member such as an illumination column, a sign column, a signal column, and the like, which is erected on a road, a bridge, and the like, and a standing member having excellent vibration damping properties.

  A standing member such as an illumination column, a sign column, or a signal column installed on a road or a bridge may shake due to a resonance phenomenon caused by a wind, an earthquake, a road surface vibration caused by traveling of a vehicle, or the like. When these standing members swing, the standing members are easily damaged by the swing, and the damage is promoted. In addition, there is a problem that the life of the instrument attached to the standing member is shortened due to the generated vibration. Further, in the case of the illumination column, there is a problem that the illumination light is shaken and the person feels uncomfortable.

In order to prevent the standing member from shaking due to such a resonance phenomenon,
(a) A method of changing the natural frequency by changing the weight, shape and rigidity of the standing member,
(b) A method of providing a physical pendulum and a contact tool inside the standing member and having a vibration damping effect by causing the physical pendulum to collide with the contact tool during vibration,
However, each has already been proposed.

  However, although the method (a) has a damping effect for a specific frequency, it cannot cope with fluctuations in which the excitation cycle and frequency fluctuate variously, such as fluctuations caused by wind. As a result, the degree of freedom in the material design of the standing member is reduced. In addition, in the method (b) above, in addition to not being able to cope with fluctuations in which the excitation cycle and frequency fluctuate variously, in order to increase the vibration damping effect, the physical pendulum and the abutment tool must be larger than a certain size. It is necessary to be safe. For this purpose, a storage space is required, which also reduces the degree of freedom in designing the standing member.

  Patent Document 1 describes a vibration damping device that responds to fluctuations in the frequency in light of such problems of the prior art.

  That is, a steel chain or wire is suspended with a non-fixed free vibration part inside the vertical hollow body, and the distance between the steel chain or wire and the inner wall of the vertical hollow body is maintained equivalent. A vibration damping device is provided, and this vibration damping device is attached to the outside or the inside of the vertical erected member, thereby attenuating the vibration caused by the vibration applied to the vertical erected member.

  FIG. 5 shows an example of the vibration damping device described in Patent Document 1. (a) is one longitudinal sectional view passing through the axis of the vibration damping device, and (b) is a longitudinal sectional view in a direction rotated by 90 ° with respect to (a).

  The vibration damping device 1 includes a vertical hollow body 10 made of a circular steel pipe and a suspension member of a steel chain 11 suspended therein. The upper end of the steel chain 11 is supported by a fixing hook 15 fixedly attached to an upper end plate 12 installed on the upper part of the vertical hollow body 10. Therefore, the steel chain forms an unfixed free vibration part except for the upper end.

  Here, since the steel chain is suspended vertically at the center of the circular steel pipe, in the absence of vibration, the distance d between the outer surface of the steel chain 11 and the inner surface of the vertical hollow body 10 is the same as that of the circular steel pipe. It is kept equivalent internally.

  This vibration damping device 1 is subjected to vibrations caused by a resonance phenomenon caused by wind, earthquake, road surface vibration caused by traveling of the vehicle, etc., and excitation occurs. At that time, both the vertical hollow body 10 and the steel chain 11 vibrate, but the free vibration part of the steel chain 11 vibrates in a different manner from the vertical hollow body 10, so the free vibration part of the steel chain 11 is It collides with the inner wall surface of the vertical hollow body 10. As a result, since the vibration energy of the vertical hollow body 10 is dissipated, the vibration of the vertical hollow body 10 is rapidly damped and the vibration is stopped.

  Thus, by suspending the steel chain 11 inside the vertical hollow body 10, it is possible to form a vibration damping device that can attenuate and stop vibration applied to the vertical hollow body.

  When the standing member is a hollow vertical member, the vibration damping device 1 is attached to the outside or the inside of the vertical standing member to suppress vibration caused by the vibration applied to the vertical standing member. The vibration can be propagated to the vertical hollow body constituting the vibration device, and the vibration can be attenuated in the vertical hollow body to be stopped.

  On the other hand, when the standing member is not a hollow body or is inclined even if it is a hollow body, the above-mentioned vibration damping device is attached to the outside of the standing member, thereby damping the standing member. Can be granted.

  When the standing member itself is a vertical hollow body, that is, when the vertical hollow body 10 shown in FIG. 5 constitutes the standing member itself, the standing member is directly placed inside the vertical hollow body serving as the standing member. By suspending the steel chain, it is possible to impart vibration damping to the standing member itself.

Japanese Patent Publication No. 04-26004

  Even if the vibration control device described in Patent Document 1 is incorporated in a standing member such as an illumination column, a sign column, or a signal column, the standing member is caused by a resonance phenomenon caused by wind, earthquake, road vibration caused by vehicle traveling, or the like. There was a case of shaking. And if these standing members are shaken, the generated vibration shortens the life of the equipment attached to the standing members.Furthermore, in the case of an illumination column, the illumination light is shaken and the person feels uncomfortable. give.

  In the case of vibrations caused by wind, earthquake or road surface vibrations due to vehicle running, etc., the vibration range is wide, so the vibration control device that simply suspends the steel chain inside the vertical hollow body It was found that this was because it could not handle vibrations in the entire frequency range. In particular, it has been found that the damping effect for low frequency vibrations of 2 to 3 Hz is insufficient.

  An object of the present invention is to provide a vibration damping device that has high damping performance against vibration whose frequency fluctuates in a wide range from high frequency to low frequency, and is independent of the direction of vibration, and a standing member excellent in vibration damping. There is to do.

  As a result of various studies, the present inventors have been able to attenuate the vibration energy because the suspension member frequently collides with the vertical hollow body in high-frequency vibration, but in low-frequency vibration, the vibration of the vertical hollow tube can be attenuated. Both the period and the time during which the vibration in the suspension member is propagated from the support point to the tip of the suspension member are large, resulting in a significant difference between the vibration mode of the suspension member and the vibration mode of the vertical hollow body. Therefore, it was found that the collision frequency between the suspension member and the vertical hollow body is reduced, and the vibration energy is not easily attenuated by the collision of the suspension member with the inner wall of the vertical hollow member.

  That is, the vibration generated by the vibration is first transmitted to the vertical hollow body, and the vibration of the vertical hollow body is transmitted to the lower end of the suspension member by vibrating the entire suspension member through the support portion of the suspension member. The time lag required for vibration transmission at that time is the difference between the vibration mode of the vertical hollow body and the vibration mode of the suspension material. In the region of high-frequency vibration, the vertical hollow body has a short vibration cycle and vibrates frequently, so that the vertical hollow body and the suspension member move separately. Since a phase difference occurs in the vibration mode and the collision frequency between the suspension member and the vertical hollow body is high, vibration energy is attenuated by the collision of the suspension member with the inner wall of the vertical hollow member. On the other hand, in the low-frequency vibration region, the vertical hollow body has a long vibration cycle, and the movement of the suspension member is slowed accordingly, so that the movement of the vertical hollow body and the suspension member is synchronized. The significant difference between the vibration mode of the vertical hollow body and the vibration mode of the suspension member is reduced, and the collision frequency between the suspension member and the vertical hollow body is reduced. Therefore, it is difficult to attenuate vibration energy due to the suspension member colliding with the inner wall of the vertical hollow member.

  Therefore, if a phase difference can be given between the vibration mode of the vertical hollow body and the vibration mode of the suspension material even in the low-frequency vibration region, the damping performance can be improved not only in the high-frequency vibration region but also in the low-frequency vibration region. I came up with the idea that I could raise it. And as a method of giving the phase difference, the lower end of the suspension member is not made a complete free vibration part, but the lower end of the suspension member is moved to the vertical hollow body in a state where it can be moved in the horizontal direction via a spring. It is conceived that, by mounting, when a vibration occurs, the lower end portion of the suspension member is urged in the horizontal direction, and the vibration mode of some suspension members can be changed.

  In this way, by attaching the lower end of the suspension member to the vertical hollow body so as to be movable in the horizontal direction via the spring, the vibration generated by the vibration is transmitted through the support at the upper end of the suspension member. Separately from the transmission, the lower end of the suspension member is also moved by a spring via a spring, so that the lower end of the suspension member moves separately from the free vibration portion of the suspension member. As a result, even in the low-frequency vibration region, there is a significant difference between the vibration mode of the vertical hollow body and the vibration mode of the lower end of the suspension member, and the collision frequency between the suspension member and the vertical hollow body increases.

  Therefore, since the collision frequency between the suspension member and the vertical hollow body increases not only in high-frequency vibration but also in low-frequency vibration, it has high damping performance even for vibration whose frequency fluctuates over a wide range from high frequency to low frequency. Equipment can be provided.

  In addition, by making the axis of the suspension member suspended inside and the axis of the vertical hollow body coincide with each other, it is possible to provide a vibration damping device that is not affected by the direction of vibration.

  The vibration damping device and the standing member excellent in vibration damping performance according to the present invention have been completed based on these findings and ideas. In addition, the standing member having excellent vibration damping performance is provided with vibration damping performance by attaching the vibration damping device outside or inside the standing member, and the standing member itself is part of the vibration damping device. There are both cases to use for.

  The gist of the present invention is the following (1) to (3) damping device and (4) to (8) standing member excellent in damping performance. Hereinafter, these may be collectively referred to as a device of the present invention or a member of the present invention.

  (1) A vibration damping device composed of a vertical hollow body in which a suspension member is suspended, wherein the axis of the suspension member and the axis of the vertical hollow body coincide with each other, and the lower end of the suspension member Is attached to the vertical hollow body so as to be movable in the horizontal direction via a spring.

  (2) The vibration damping device according to (1) above, wherein the suspension member is made of at least one of a combination of a plurality of metal bodies, a metal chain, and a wire.

  (3) The vibration damping device according to (1) or (2) above, wherein the vertical hollow body is a metal tube.

  (4) A vertically erected member having excellent vibration damping characteristics, wherein the vibration damping device according to any one of (1) to (3) is attached to the outside or the inside.

  (5) An inclined standing member excellent in vibration damping, wherein the vibration damping device according to any one of (1) to (3) is attached to the outside.

  (6) A vertically extending tubular vertical erection member, in which a suspending member having an axis that coincides with the axis of the vertical erection member is suspended, and is suspended A vertical standing member excellent in vibration damping, wherein the lower end portion of the member is attached to the vertical standing member so as to be movable in the horizontal direction via a spring.

  (7) The suspension member is composed of at least one of a combination of a plurality of metal bodies, a metal chain, and a wire. Standing member.

  (8) The vertical standing member according to (6) or (7) above, wherein the vertical standing member is a metal tube.

  According to the present invention, it is possible to obtain a vibration damping device that can effectively cope with vibration whose frequency fluctuates in a wide range from a high frequency to a low frequency and a standing member excellent in vibration damping.

  Further, in the vibration damping device composed of a vertical hollow body in which the suspension member is suspended and the standing member excellent in vibration damping, the axis of the lifting member and the axis of the vertical hollow body coincide. Therefore, a damping device that is not affected by the direction of vibration can be obtained.

  Furthermore, since the vertically extending tubular vertical erection member has a suspension member having an axis that coincides with the axis of the vertical erection member suspended therein, the direction of vibration also depends on the direction of vibration. The vibration control which is not done is obtained.

  Hereinafter, the present invention will be described with reference to the drawings.

  FIG. 1 shows an example of a vibration damping device according to the present invention. (a) is one longitudinal sectional view passing through the axis of the vibration damping device, and (b) is a longitudinal sectional view in a direction rotated by 90 ° with respect to (a).

  The vibration damping device 1 includes a vertical hollow body 10 made of a circular steel pipe and a suspension member of a steel chain 11 suspended therein. The upper end of the steel chain 11 is supported by a fixing hook 15 fixedly attached to an upper end plate 12 installed on the upper part of the vertical hollow body 10. And the lower end part of the steel chain is attached to the vertical hollow body in a state in which it can move in the horizontal direction via a leaf spring 22 installed in the horizontal direction.

  Therefore, the steel chain forms an unfixed free vibration part except for the upper end and the lower end. Since the steel chain is suspended vertically at the center of the circular steel pipe, in the absence of vibration, the distance d between the outer surface of the steel chain 11 and the inner surface of the vertical hollow body 10 is the same as that of the steel chain. From the upper end portion to the lower end portion, the same is maintained inside the circular steel pipe.

  As described above, since the lower end portion of the suspension member is not a complete free vibration part, it is possible to urge horizontal motion to the lower end portion of the suspension member when a swing occurs, The lower end portion moves separately from the free vibration portion of the suspension member. As a result, even in the low frequency vibration region, a phase difference can be given to the vibration mode of the vertical hollow body and the vibration mode of the suspension member, and the collision frequency between the suspension member and the vertical hollow body can be increased. Therefore, it is possible to improve the damping performance not only in the high frequency vibration region but also in the low frequency vibration region.

  The vertical hollow body constituting the vibration damping device of this example is a steel pipe having a circular cross section having an outer diameter of 76.3 mm, a wall thickness of 4.2 mm, an inner diameter of 67.9 mm, a length of 1.6 m, and a weight of 11.95 kg. As the chain, a steel chain having a length of 142.4 cm and a total weight of 7846 g, comprising 29 steel links having a chain thickness of 16 mm and a length of 80 mm × 56 mm in width as one link, was used.

  Note that the distance d between the outer surface of the chain and the inner surface of the vertical hollow 10 when the suspension member is suspended from the axial center of the vertical hollow body 10 was 5.95 mm.

  FIG. 2 shows another example of the vibration damping device according to the present invention. (a) is one longitudinal sectional view passing through the axis of the vibration damping device, and (b) is a longitudinal sectional view in a direction rotated by 90 ° with respect to (a).

  The vibration damping device 1 is the same as that shown in FIG. 1 except for a mounting structure in which the lower end portion of the steel chain is attached to the vertical hollow body 10 in a state in which the lower end portion can be moved in the horizontal direction via the leaf spring 22.

  The difference from FIG. 1 is that the leaf spring 22 is vertically attached to the lower end plate 21 installed at the bottom of the vertical hollow body 10, and the lower end portion of the steel chain is horizontal via the leaf spring 22. It can move in the direction.

  Therefore, the steel chain forms the non-fixed free vibration part except for the upper end and the lower end, as shown in FIG. Since the steel chain is suspended vertically at the center of the circular steel pipe, in the absence of vibration, the distance d between the outer surface of the steel chain 11 and the inner surface of the vertical hollow body 10 is the same as that of the steel chain. From the upper end portion to the lower end portion, the same is maintained inside the circular steel pipe.

  As described above, since the lower end portion of the suspension member is not a complete free vibration part, it is possible to urge horizontal motion to the lower end portion of the suspension member when a swing occurs, The lower end moves separately from the free vibration part of the suspension member.

  FIG. 3 shows another example of the vibration damping device according to the present invention. (a) is one longitudinal sectional view passing through the axis of the vibration damping device, and (b) is a longitudinal sectional view in a direction rotated by 90 ° with respect to (a).

  The vibration damping device 1 includes a vertical hollow body 10 made of a circular steel pipe and a suspension member of a steel chain 11 suspended therein. The upper end portion of the steel chain 11 is supported by a fixing hook 15 fixedly attached to an upper end plate 12 installed on the upper portion of the vertical hollow body 10. And the lower end board 21 is installed in the bottom part of the vertical hollow body 10, the movable disc 25 is mounted horizontally in the upper center of the lower end board 21, and the lower end part of this steel chain 11 is this It is connected to the upper center of the movable disk 25. Around the movable disk 25, four coil springs 23 are installed between the outer surface of the movable disk 25 and the inner surface of the vertical hollow body 10, and the upper surface of the outer periphery of the four coil springs 23 and the movable disk 25. A donut-shaped presser plate 26 is installed so as to cover the coil spring 23 and the coil spring 23 and the movable disc 25 are prevented from being detached from the lower end plate 21.

  In this way, the lower end of the steel chain is in a state of being movable in the horizontal direction via the coil spring 23, and the steel chain has the upper end and the lower end in the same manner as shown in FIGS. Except for this, an unfixed free vibration part is formed. Since the steel chain is suspended vertically at the center of the circular steel pipe, in the absence of vibration, the distance d between the outer surface of the steel chain 11 and the inner surface of the vertical hollow body 10 is the same as that of the steel chain. From the upper end portion to the lower end portion, the same is maintained inside the circular steel pipe.

  Therefore, since the lower end portion of the suspension member is not a complete free vibration part, it is possible to urge horizontal motion to the lower end portion of the suspension member when a swing occurs, so the lower end portion of the suspension member Moves separately from the free vibration part of the suspension member.

  In addition, the shape of the vertical hollow body is not limited to the above shape, and for example, the outer diameter is 34.0 to 114.3 mm, the inner diameter is 27.6 to 107.3 mm, the wall thickness is 2.3 to 4.5 mm, The thing of length 1.0-2.4m and weight 1.8-2.9kg can be used.

  And as a material of a vertical hollow body, you may use metal pipes and resin pipes, such as a stainless steel pipe and an aluminum pipe other than a steel pipe. A steel pipe is preferable from the viewpoint of strength and durability. From the viewpoint of rust prevention, it is preferable to use a stainless steel pipe or to use the steel pipe after subjecting the steel pipe to a rust prevention treatment such as hot dip galvanization or painting.

  In addition, the cross-sectional shape of the vertical hollow body is not particularly limited, and may be a circle or a polygon such as an octagon or a hexagon. When a vibration control effect is required even for shaking in all directions, it is preferable to adopt a circular cross section.

  The suspension member is not limited to the shape of the steel chain described above. The chain diameter is 6 to 25 mm, the length of one link is 30 to 125 mm × width is 21 to 88 mm, the total length is 80 to 220 cm, and the total weight is 600 to A 31000 g steel chain can be used. In addition to the steel chain, a stainless steel chain may be used. From the viewpoint of strength and durability, a steel chain is preferable. From the viewpoint of rust prevention, it is preferable to use a stainless steel chain or to use a steel chain after subjecting it to a rust prevention treatment such as hot dip galvanization. Further, the chain is not limited to a chain, and a plurality of metal bodies connected together can be used. For example, it can be formed by connecting 5 to 61 metal balls having a diameter of 21 to 99 mm with steel wires having a length of 15 to 74 mm and an outer diameter of 2.6 to 9 mm. As a material of the metal body, stainless steel or aluminum is used in addition to steel. Furthermore, you may use a wire rope instead of a chain.

  When a metal vertical hollow body and a metal suspension member are used, the impact noise increases. To suppress this impact noise, the surface of the vertical hollow body and / or suspension member is made of elastic material such as rubber. The body is preferably lined or covered.

  The mass per unit of the suspension member is not limited to the above numerical value, and may be about 0.7 to 27 g / mm.

  The distance d between the outer surface of the chain and the inner surface of the vertical hollow 10 when the suspension member is suspended from the center line of the vertical hollow body 10 is not limited to the above numerical value, and is about 3 to 15 mm. Good.

  Although the vibration damping device itself has been described above, when the standing member is a vertical hollow body, that is, the vertical hollow body 10 shown in FIGS. 1 to 3 itself constitutes a part of the standing member. In some cases, vibration control can be imparted to the standing member itself by hanging the hanging member directly inside the vertical hollow body as the standing member.

  On the other hand, when the standing member is not a hollow body or is inclined even if it is a hollow body, the above-described vibration damping device is attached to the outside or the inside of the standing member to stand upright. Damping property can be imparted to the member. Of course, even if the standing member is a vertical hollow body, it is needless to say that the standing member can be provided with damping properties by separately attaching a damping device to the outside or inside of the standing member.

  In order to give the standing member a great vibration damping property, a damping device is attached to a portion where the standing member shows the maximum displacement amplitude, or when the standing member is a vertical hollow body, the standing member itself Is preferably provided as a part of the vibration damping device. Moreover, in order to cope with each next vibration mode, it is preferable to attach the vibration damping device to a plurality of positions of the standing member.

  The application object to which the vibration damping device according to the present invention is attached is a standing member that generates vibration due to vibration, and can be applied to a suspension tower member in a suspension bridge in addition to an illumination column, a sign column, and a signal column.

  FIG. 4 shows an example when the vibration damping device 1 according to the present invention is attached to two places outside the standing member.

  This standing member is an illumination column 2 in which an illuminating lamp 7 is attached to the tip of a projecting member 5, and a steel pipe 4 having a circular cross section is erected on a foundation 3. A projecting member 5 projects substantially horizontally, and a reinforcing stay 6 that supports the projecting member is provided. And the said damping device 1 is attached with the volt | bolt (not shown) at two places of the outer periphery upper part and center part of the steel pipe 4 with a circular cross section.

  When a vibration occurs in a steel pipe having a circular cross section of the lighting column 2 due to a resonance phenomenon caused by wind, earthquake, road vibration caused by traveling of a vehicle, etc., the vibration is transmitted to the vibration damping device 1 attached to the lighting column, and excitation is generated. Occur. At that time, the vibration control device 1 including the vertical hollow body and the suspension member is operated. However, if the support portion of the suspension member is movable in the horizontal direction, the suspension device can be suspended during both low-frequency vibrations and high-frequency vibrations. The outer surface of the lowering member collides with the inner wall surface of the vertical hollow body 10, and vibration energy can be sufficiently attenuated. Therefore, the vibration energy of the vertical hollow body is dissipated, and the vibration of the illumination column 2 which is a standing member is restrained.

  According to the present invention, it is possible to obtain a vibration damping device that can effectively cope with vibration whose frequency fluctuates in a wide range from a high frequency to a low frequency and a standing member excellent in vibration damping.

  Further, in the vibration damping device composed of a vertical hollow body in which the suspension member is suspended and the standing member excellent in vibration damping, the axis of the lifting member and the axis of the vertical hollow body coincide. Therefore, a damping device that is not affected by the direction of vibration can be obtained.

  Furthermore, since the vertically extending tubular vertical erection member has a suspension member having an axis that coincides with the axis of the vertical erection member suspended therein, the direction of vibration also depends on the direction of vibration. The vibration control which is not done is obtained.

An example of the damping device concerning the present invention is shown. (a) is one longitudinal sectional view passing through the axis of the vibration damping device, and (b) is a longitudinal sectional view in a direction rotated by 90 ° with respect to (a). The other example of the damping device concerning the present invention is shown. (a) is one longitudinal sectional view passing through the axis of the vibration damping device, and (b) is a longitudinal sectional view in a direction rotated by 90 ° with respect to (a). The other example of the damping device concerning the present invention is shown. (a) is one longitudinal sectional view passing through the axis of the vibration damping device, and (b) is a longitudinal sectional view in a direction rotated by 90 ° with respect to (a). It is a figure which shows an example when the damping device 1 which concerns on this invention is attached to two places outside the standing member. It is a longitudinal cross-sectional view which shows an example of the conventional damping device described in patent document 1.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Damping device 2 Illumination pillar 3 Foundation 4 Steel pipe with circular cross section 5 Overhang member 6 Reinforcement stay 7 Illumination lamp 10 Vertical hollow body 11 Steel chain 12 Upper end plate 15 Fixed hook 21 Lower end plate 22 Plate spring 23 Coil spring 25 Movable disc 26 Presser plate d Distance between the outer surface of the steel chain and the inner surface of the vertical hollow body

Claims (8)

  A vibration damping device comprising a vertical hollow body in which a suspension member is suspended, wherein the axis of the suspension member coincides with the axis of the vertical hollow body, and the lower end of the suspension member has a spring The vibration damping device is attached to a vertical hollow body so as to be movable in a horizontal direction via the vertical cavity.   2. The vibration damping device according to claim 1, wherein the suspension member is made of at least one of a combination of a plurality of metal bodies, a metal chain, and a wire.   The vibration damping device according to claim 1 or 2, wherein the vertical hollow body is a metal pipe.   A vertically erected member having excellent vibration damping properties, wherein the vibration damping device according to any one of claims 1 to 3 is attached to the outside or the inside.   An inclined standing member excellent in vibration damping, wherein the vibration damping device according to any one of claims 1 to 3 is attached to the outside.   A vertically extending tubular vertical erection member, in which a suspension member having an axis that coincides with the axis of the vertical erection member is suspended, and the lower end of the suspension member A vertical erection member excellent in vibration damping, characterized in that the part is attached to the vertical erection member in a state of being movable in the horizontal direction via a spring.   The vertical erection excellent in vibration damping according to claim 6, wherein the suspension member is made of at least one of a combination of a plurality of metal bodies, a metal chain, and a wire. Element. The vertical standing member according to claim 6 or 7, wherein the vertical standing member is a metal pipe.

Images