JP2886463B2 - Damping device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a vibration control device for controlling the vibration of a building structure.

[0002]

2. Description of the Related Art In general, a conventional vibration damping device used for a building structure is provided with braces 6 between the layers 5 and 5 of the building structure as shown in FIG. A device provided with a damper 7 in part is known. In the vibration damping device having such a configuration, the damping member 7 attenuates the expansion or contraction deformation of the bracing 6 generated when the building structure vibrates, thereby attempting to dampen the vibration. As another example, as shown in FIG. 5, a structure in which braces 8 are arranged in a mountain shape between each story 5 and 5 of a building structure and a damper 9 is provided on the top of the braces 8 is proposed. ing. The control device having such a configuration is configured to receive and attenuate the minute vibration of the building structure by the damper 9.

[0003]

However, in the above-described conventional vibration damping devices shown in FIGS. 4 and 5, the damping effect of the damper cannot be expected because the relative deformation between the layers of the building is small when the building is vibrated. For this reason, there is a disadvantage that even if large vibrations can be damped, minute vibrations cannot be effectively attenuated.

SUMMARY OF THE INVENTION An object of the present invention is to provide a vibration damping device capable of effectively suppressing minute vibrations of a building, which has been considered difficult to control, in view of the above-mentioned conventional disadvantages. It is in.

[0005]

A vibration damping device according to the present invention has a link mechanism in which arm members each of which is pin-connected to each of four corners of a space formed by an upper floor and a lower floor of a building are disposed substantially at the center. Are connected to the pin joints located closest to the arm, respectively, and the two arms adjacent to each other of the pin-connected link mechanism are connected to each other.
A part of the part is extended to form an operating arm integral with the arm member, and a damping damper is disposed between the ends of the operating arm.
Further, the length of the operating arm is longer than the length of the link mechanism.

[0006]

As described above, according to the vibration damping device of the present invention,
It is possible to effectively suppress minute vibration of a building, which has been considered difficult in the past.

[0007]

An embodiment of the present invention will be described below with reference to the accompanying drawings. 1 is a front view of a vibration damping device according to one embodiment of the present invention, FIG. 2 is a front view showing an operation state of the vibration damping device according to one embodiment of the present invention, and FIG. 3 is an operation of the vibration damping device. It is a front view showing a state. Here, the vibration damping device 10 includes arm members 1 at four corners of a space formed by the upper floor 11 and the lower floor 12 of the building.
3a, 13b, 13c, and 13d are respectively pin-connected.

The respective arm members 13a, 13b, 13
The other ends of c and 13d are connected to pin coupling portions 14a, 14b, 14c and 14d of the four-bar linkage 14 disposed substantially at the center. Actuating arms 17 and 18 are formed by extending one end of the adjacent links 15 and 16. Further, a damping damper 19 is provided between the operating arms 17 and 18.

The ratio of the length of the link 16 to the working arm 18 is
1: L (L> 1). The ratio of the length of the link 15 to the operating arm 17 is also 1: L (L> 1). Therefore, the amount of deformation of the link mechanism 14 is
7 and 18 are transmitted L times.

Next, the operation of the vibration damping device configured as described above will be described. First, as shown in FIG. 2, when vibration occurs in which the upper floor 11 shifts to the left in the figure and the lower floor 12 shifts to the right, a tensile force acts on the links 13a and 13c. Further, a compressive force acts on the links 13b and 13d. Therefore, the link mechanism 14 is deformed, and the operating arms 17 and 18
A tensile force having an L-fold deformation acts on the damper 19 disposed therebetween.

[0013] Further, as shown in FIG. 3, when the upper floor 11 vibrates to the right in the figure and the lower floor 12 to the left, vibration occurs in the link 1.
Compression force acts on 3a and 13c. Also, link 13
A tensile force acts on b and 13d. Therefore, the link mechanism 14 is deformed, and the damper 19 disposed between the operating arms 17 and 18 is subjected to a L-fold deformation amount of compressive force.

As described above, according to the vibration damping device of the present invention, the amount of deformation with respect to the vibration of the building structure is increased by L times, so that even a minute vibration can be effectively damped. .

Incidentally, the present invention is not limited to the above-described embodiment, and various design changes can be made based on the technical idea of the present invention.

[0014]

According to the vibration damping device of the present invention, the arm members which are respectively pin-connected to the four corners of the space formed by the upper floor and the lower floor of the building are disposed substantially at the center. Respectively connected to the pin coupling portions located in the nearest vicinity of the link mechanism, and two adjacent two of the pin coupled link mechanisms are connected to each other.
A part of the arm is extended to form an operating arm integral with the arm member ,
Since the damping damper is provided between the ends of the working arm, the amount of damping can be freely selected according to the building to be damped while having a simple structure. In addition, since the length of the operating arm is configured to be longer than the length of the link mechanism as described above, it is possible to effectively suppress minute vibrations of a building that has conventionally been difficult to control.

[Brief description of the drawings]

FIG. 1 is a front view of a vibration damping device according to an embodiment of the present invention.

FIG. 2 is a front view showing an operation state of the vibration damping device according to one embodiment of the present invention.

FIG. 3 is a front view showing an operation state of the vibration damping device according to one embodiment of the present invention.

FIG. 4 is a front view showing an example of a conventional vibration damping device.

FIG. 5 is a front view showing an example of a conventional vibration damping device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Vibration suppression device 11 Upper floor 12 Lower floor 13 Arm member 14 Link mechanism 14a, 14b Pin connection part 14c, 14d Pin connection part 15 Link 16 Link 17, 18 Working arm 19 Damper

Claims (2)

(57) [Claims] [Claim 1] A recent pin coupling portion and respectively connected to a position near the upper floor and the lower floor and a link mechanism which is arranged substantially in the center of the arm member respectively pinned to the four corners of the formed space in the building With the adjacent link mechanism of the pin-connected link mechanism .
A vibration damping device characterized in that a part of two arms is extended to form an operating arm integral with an arm member, and a damping damper is provided between ends of the operating arm. 2. The vibration damping device according to claim 1, wherein a length of the operating arm is longer than a length of the link mechanism.