JP2747903B2 - Building damping devices and damping equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration damping device for a building for effectively suppressing external vibration applied to the building due to an earthquake or a strong wind, and to a vibration damping equipment using the vibration damping device.

[0002]

2. Description of the Related Art As a prior art of this kind of vibration damping device, there is, for example, a technology described in Japanese Patent Publication No. Hei.

[0003]

However, the vibration damping mechanism of the prior art described above has a cylindrical roller member narrowed by these arc surfaces between an upper and lower narrow pressure member having a concavely curved arc surface on the opposing surface. In this case, there is a problem that the configuration is complicated, the accuracy is required between the components, and the production of the components, the assembly of the device, and the maintenance require a lot of trouble.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has an object to simplify the structure as compared with the above-mentioned prior art, and to facilitate manufacture of each member, assembly and maintenance of the apparatus. Another object of the present invention is to provide a vibration damping device for a building, which can effectively perform external vibration on a horizontal plane. Another object of the present invention is to
An object of the present invention is to provide a vibration damping device for a building that can effectively suppress external vibration in any direction on a horizontal plane.

Another object of the present invention is to provide a vibration damping device capable of freely setting a natural period of the vibration damping device in accordance with a building.

It is still another object of the present invention to provide a vibration damping device for a building capable of exhibiting a more effective and appropriate vibration damping effect.

It is a further object of the present invention to provide a vibration damping facility for a building capable of automatically, appropriately and promptly stopping external vibration of a high-rise building.

[0008]

In order to achieve the above object, according to the present invention, a rack rail having a large number of rack teeth in the longitudinal direction of the rail on the upper surface of the rail, and one rack tooth meshed with the rack teeth of the rack rail. A plurality of pinions, an eccentric shaft provided at an eccentric position in the radial direction of the pinion, a supporting material that is supported by the eccentric shaft and stands upward, and an upper gantry supported by the supporting material. A support frame combined with a table type and a weight member installed on the support frame are provided.

In order to achieve the above object, according to the present invention, a plurality of the rack rails are laid in parallel on a horizontal plane at a predetermined interval from each other, and one or more rack rails are provided on the rack teeth of each rack rail. The pinion is engaged.

In order to achieve the above object, according to the present invention, a plurality of rails having a large number of rack teeth in the longitudinal direction of the rail on the upper surface of the rail and being laid in parallel with a predetermined interval in a horizontal plane are provided. Rack rails, and one or more pinions meshed with the rack teeth of each rack rail,
An eccentric shaft provided at an eccentric position equidistant in the radial direction of each pinion, a support member pivotally supported by each eccentric shaft and standing up, and an upper gantry supported by the support member are formed in a table type. The supporting frame combined with the above, two sets of vibration damping units comprising an upper and lower two-tiered, and arranged in a direction orthogonal to each other when viewed from a plane, and combined, a weight member is installed on the upper-stage vibration-damping unit I have.

In order to achieve the above object, according to the present invention, at least one of a plurality of rack teeth having a large number of rack teeth in the length direction of the rail on the upper surface of the rail and being laid in parallel at a predetermined interval in a horizontal plane is provided. And a plurality of rack rails are arranged at predetermined intervals in the length direction of each rack rail,
And a plurality of pinions meshed with the rack teeth of the rack rail, one pinion is arranged for each pinion, one end is attached to the pinion via a rotation shaft so as to be integrally rotatable, and the other end is located below. Arms, a support frame that is pin-coupled to the lower end of each arm and a support frame erected upward, and a support frame supported by the support frame are combined in a table shape. And an installed weight member.

In order to achieve the above object, according to the present invention, a plurality of racks having a large number of rack teeth in the longitudinal direction of the rail on the upper surface of the rail and laid in parallel with a predetermined interval in a horizontal plane are provided. Rack rails, a plurality of pinions arranged at predetermined intervals in the length direction of each rack rail and engaged with the rack teeth of the rack rail, and one set of one pinion assigned to each pinion Are mounted on the pinion via a rotation shaft so as to be integrally rotatable, and the other end is provided below, and a support member which is pin-coupled to the lower end of each arm and is vertically set up. Two sets of vibration damping units each including an upper frame and a support frame in which the upper frame is combined in a table shape are stacked in upper and lower stages, and arranged in a direction orthogonal to each other when viewed from a plane, and combined to form an upper vibration damping unit. Tsu has established a weight member to the door.

In order to achieve the above object, according to the present invention, each pinion is provided with a means for adjusting the position of an eccentric shaft, and the position adjusting means moves the eccentric shaft in the radial direction of the pinion so that the eccentric distance can be adjusted. I have.

In order to achieve the above object, according to the present invention, a rail or floor having a roughened upper surface is laid instead of the rack rail, and a friction rotating body is placed on the rail or floor in place of the pinion. I have.

In order to achieve the above object, according to the present invention, the vibration control device according to claim 6 is provided with a means for adjusting the position of the eccentric shaft on a rooftop of a building, and the vibration control device is mounted on a building. A plurality of sensors for detecting vibration are properly arranged, and the position adjusting means of the eccentric shaft in the vibration damping device and each sensor are connected to a computer, and the computer relates to at least the external vibration of the building detected by each sensor. From the detection results, the relationship between the proper vibration cycle to suppress the external vibration, the inherent vibration cycle of the vibration suppression device to realize the vibration cycle, and the appropriate adjustment of the eccentric distance of the eccentric shaft A control amount and a control direction for the position adjusting means are calculated, and a function of controlling the position adjusting means of the eccentric shaft is provided based on the calculation result.

[0016]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view of a first embodiment of the present invention, and FIG.
FIG. 3 is a diagram illustrating the operation of the first embodiment, and FIG. 4 is a diagram illustrating the state of attachment of the vibration damping device to the building.

The vibration damping device 1 of the first embodiment shown in these figures.
When one direction on the horizontal plane is defined as the X direction and the direction orthogonal thereto is defined as the Y direction, the X direction vibration damping unit 3 installed on the lower side of the device and the Y direction installed on the upper side The vibration unit 16 includes a vibration unit 16 and a weight 29 installed on an upper stage side thereof.

The gantry 2 is fixed on the rooftop B 'of the building B to be targeted. In addition, in FIG. 4, G shows the ground of a building.

The X-direction vibration damping unit 3 includes two rack rails 4, four pinions 5, eccentric shafts 7 of each pinion 5, and a support frame 8 mounted over the four eccentric shafts 7. And a damper 13.

The rack rail 4 has a number of rack teeth on the upper surface of the rail in the length direction of the rail.
Further, the two rack rails 4 are laid on the gantry 2 long in the X direction and at predetermined intervals in the Y direction. Inside each rack rail 4, a pinion slip stopper 4 'is provided.

The rack rail 4 is substantially straight and has a simple shape. That is, in the prior art described at the beginning, the upper and lower narrow pressure members having concavely curved arcuate surfaces on the opposing surfaces are used, and tooth surfaces meshing with each other are formed on those surfaces. It has a simple rail configuration, making the configuration extremely simple.

Each of the pinions 5 is formed in an arc shape having a radius R from the center O. Further, the four pinions 5 are arranged in front and rear, right and left of each other. As can be seen from FIG. 1, the left and right pinions 5, 5 are arranged at predetermined intervals in the X direction, that is, the length direction of the rack rail 4.
Further, it is engaged with the rack teeth of the rack rail 4. As can be seen from FIG.
They are arranged at the same intervals as the rack rails 4 and 4 in the Y direction, and are connected by a joint member 6.

The eccentric shaft 7 is provided at the center O of the pinion 5.
And at a distance r from the eccentric position, and is supported by the bearing 10. The eccentric shafts 7, 7 of the left and right pinions 5, 5 are connected by a rod 11 attached between the bearings 10, 10, as shown in FIG.

The support frame 8 is constructed by combining four support members 9 attached to the respective eccentric shafts 7 via bearings 10 and standing vertically upward, and an upper base 12 in a table type. Have been.

In this embodiment, a jack-type damper in which a viscous fluid is sealed is used as the damper 13, but a coil spring may be used. This damper 13
Is mounted between the upper gantry 12 of the support frame 8 and the joining material 6 of the front and rear pinions 5, 5 via brackets 14, 15.

The Y-direction vibration damping unit 16 is also mounted over two rack rails 17, four pinions 18, eccentric shafts 20 provided on each pinion 18, and four eccentric shafts 20. A support frame 21 and a damper 26 are provided.

As the rack rail 17, the same one as the rack rail 4 of the X-direction vibration damping unit 3 is used. As can be seen from FIG. 1, the two rails 17 are long on the upper frame 12 of the support frame 8 of the vibration damping unit 3 in the X direction, being long in the Y direction and spaced from each other by a predetermined distance in the X direction. Has been laid. Each rack rail 17
Is provided with a pinion slip stopper 17 '.

The pinion 18 has the same shape as the pinion 5 of the vibration damping unit 3 in the X direction. The four pinions 18 are arranged in front, rear, left and right of each other. As can be seen from FIG. 1, the left and right pinions 18, 18 are arranged at the same intervals as the rack rails 17, 17 in the X direction, and are connected by a joining material 19. 2, the front and rear pinions 18, 18 are arranged at predetermined intervals in the Y direction, that is, the length direction of the rack rail 17, and are engaged with the rack teeth of the rack rail 17.

The eccentric shaft 20 is provided at a position eccentric from the center O of the pinion 18 by a distance r, and
3 supported. Also, the front and rear pinions 18,
The eccentric shafts 20 and 18 of FIG.
They are connected by a rod 24 attached between 3,3.

The support frame 21 has a bearing 2 on each eccentric shaft 20.
An upper frame 25 and four support members 22 attached vertically via an upper portion 3 are vertically combined with each other in a table shape.

As the damper 26, the same one as the damper 13 of the X-direction vibration damping unit 3 is used.
The damper 26 is connected to the upper frame 25 of the support frame 21 via the brackets 27 and 28, and the left and right pinions 18,
It is mounted between 18 splices 19.

The weight 29 is installed on the upper pedestal 25 of the support frame 21 of the vibration damping unit 16 in the Y direction. The weight W of the weight 29 is set to about 1/100 of the weight of the building B.

As described above, in the vibration damping device 1 of the first embodiment, just two sets of the vibration damping units 3 and 16 are superimposed on the upper and lower tiers and combined with a phase shift of 90 ° when viewed from the plane. That is, they are arranged in a direction orthogonal to each other when viewed from above and combined. The vibration damping device 1 according to the first embodiment operates as follows.

Now, it is assumed that the roof B 'of the building B is displaced by the distance s in the X direction as shown in FIG. 3 due to the earthquake or strong wind.

A gantry 2 is fixed to the roof floor B '.
A rack rail 4 of an X-direction vibration damping unit 3 is laid on the gantry 2. Therefore, when the roof floor B 'is displaced by the distance s in the X direction, the two rack rails 4 are displaced by the same distance s.

As described above, when the two rack rails 4 are displaced by the distance s, the four pinions 5 of the vibration damping unit 3 in the X direction rotate counterclockwise in FIG. At the same time, the center O of the pinion 5 moves to the position O '. The distance s at this time
, The rotation angle θ, and the radius R of the pinion 5 are represented by s
= R sin θ.

At this time, the relationship between the horizontal distance s 'of the eccentric shaft 7 of the pinion 5, the radius r, and the rotation angle θ is as follows: s' = rsin θ.

By the way, when the pinion 5 of the vibration damping unit 3 in the X direction rotates by the rotation angle θ and its central axis is tilted, Y
The weight W of the weight 29 installed on the upper pedestal 25 of the support frame 21 in the vibration damping unit 16 in the direction is the whole of the vibration damping unit 16 in the Y direction and the supporting material of the support frame 8 of the vibration damping unit 3 in the X direction. 9 and acts downward on the eccentric shaft 7. For this reason, the pinion 5 of the vibration damping unit 3 in the X direction tries to rotate in the direction opposite to the vibration direction of the rooftop B 'by the rotational moment M given by M = Ws'.
Thereby, the rack rail 4 of the vibration damping unit 3 in the X direction
Further, a force for displacing the building B in the direction opposite to the vibration direction of the rooftop B 'acts on the building B through the gantry 2, and the building B has a vibration damping effect.

In this case, the inherent vibration period T of the vibration damping device 1
k is a function of the radius R of the pinion 5 and the eccentric distance r of the eccentric shaft 7. When the radius R of the pinion 5 is constant, the vibration cycle Tk increases when the eccentric distance r is small, and the vibration cycle Tk decreases when the eccentric distance r is large.

When the roof floor B 'vibrates in the X direction in the direction opposite to that in FIG. 3, the X direction vibration damping unit 3 operates in the direction opposite to that described above, and the vibration of the building B is damped. Perform an action.

When the roof floor B 'vibrates in any direction in the X direction, the vibration and clearance of the components of the vibration damping unit 3 in the X direction are absorbed by the damper 13, so that the vibration damping in the X direction is performed. The constituent members of the unit 3 operate reliably.

When the roof floor B 'vibrates in the Y direction, the rack rail 17, the pinion 18, the eccentric shaft 20, the support frame 21, the damper 26 and the weight 29 of the vibration control unit 16 in the Y direction are The X direction vibration suppression unit 3
Rack rail 4, pinion 5, eccentric shaft 7, support frame 8,
It operates similarly to the damper 13 and the weight 29, and performs the vibration damping action of the building B. In this case, the vibration damping unit 3 in the X direction acts as a fixed member.

Therefore, in the first embodiment, the X direction,
With respect to any vibration in the Y direction, the building B can be provided with a vibration damping action to attenuate the vibration.

By appropriately setting the radius R of the pinions 5 and 18 and the eccentric distance r of the eccentric shafts 7 and 20 in accordance with the vibration cycle inherent in the building B, the vibration damping device 1
Can be set freely and easily. In the above embodiment, the X-direction vibration damping unit 3
Although both the vibration suppression units 16 in the Y direction are provided, only one vibration suppression unit may be provided, and the weight 29 may be provided on the upper surface of the vibration suppression unit.

With such a configuration, for example, the dimension of the building B in the Y direction is smaller than the dimension in the X direction.
This can be preferably applied to a case where only the vibration in the Y direction needs to be considered. That is, in this case, the vibration control unit 16 is directly installed on the roof floor B 'without providing the vibration control unit 3, and the weight 29 is placed on the vibration control unit 16.
May be attached. Thereby, the vibration in the Y direction with respect to the building B is favorably damped by the same operation as that of the above-described damping unit 16. In this modification, since the vibration damping unit is formed as a single unit, the structure is correspondingly simple, the assembly and maintenance of the device can be easily performed, and the cost can be reduced.

Next, FIG. 5 is a front view showing a second embodiment of the present invention, and FIG. 6 is a view taken along the line CC of FIG.

The vibration damping device 30 of the second embodiment shown in FIGS. 5 and 6 also has a vibration damping unit 32 in the X direction, a vibration damping unit 52 in the Y direction, and a weight 70 installed on the upper stage. It is provided with. Also, in the second embodiment, the gantry 31 is fixed on the roof floor B '.

The X-direction vibration damping unit 32 includes two rack rails 33, four pinions 34, four arms 38, a support frame 40, and a damper 47.

On the upper surface of the rack rail 33, a number of rack teeth are provided in the length direction of the rail. Also,
The two rack rails 33 are laid on the gantry 31 so as to be long in the X direction and at predetermined intervals in the Y direction. Inside each rack rail 33, a pinion slip stopper 33 'is provided.

The pinion 34 is formed in a fan shape having a radius R in this embodiment. Also, four pinions 34
Are arranged on the front, back, left and right. Left and right pinions 34,
5, are arranged at predetermined intervals in the X direction, that is, the length direction of the rack rail 33, and are engaged with the rack teeth of the rack rail 33.
As shown in FIG. 6, the front and rear pinions 34 are arranged at the same intervals as the rack rails 33 in the Y direction. Further, the front and rear pinions 34, 34 are connected to each other via a rotating shaft 35 supported by bearings 36, 36, respectively.
They are connected so as to rotate synchronously. The bearings 36 in the front-rear direction are provided on a frame 37 shown in FIG.

Each of the four arms 38 is formed to have a length L longer than the radius R of the pinion 34. The upper end of each arm 38 is
The lower end extends to the outside of the lower frame 32 and is provided so as to be able to rotate integrally with the pinion 34.

The support frame 40 is constructed by combining four support members 41 arranged in the front, rear, left and right and an upper gantry 44 in a table type. The support member 41 of the support frame 40 is provided with a bearing 39 provided at the lower end of the arm 38.
Are connected via a pin 42 and are vertically erected upward. The left and right support members 41 are connected to each other by a rod 43 provided between the bearings 39. Thus, the support frame 40 is provided with the pinion 34.
The arm moves in a vertical plane following the operation of the arm 38.

In this embodiment, a jack-type damper in which a viscous fluid is sealed is used as the damper 47, but a coil spring may be used. This damper 47 is supported via a pin 48 on a bracket 45 attached to the lower surface of the upper frame 44 of the support frame 40. The piston rod 47 ′ fitted to the damper 47 is connected via a pin 49 to a yoke 46 attached to a rotating shaft 35 connecting the left pinions 34, 34.

The Y-direction damping unit 52 also includes two rack rails 53, four pinions 54, four arms 58, a support frame 60, and a damper 67.

As the rack rail 53, the same one as the rack rail 33 of the X direction vibration damping unit 32 is used. As shown in FIG. 6, the two rack rails 53 are long in the Y direction and are spaced apart from each other by a predetermined distance in the X direction.
0 is laid on the upper frame 44. Inside each rack rail 53, a pinion slip stopper 53 'is additionally provided.

The pinion 54 has the same shape as the X-direction vibration damping unit 32. And
The four pinions 54 are arranged on the front, rear, left and right of each other. The front and rear pinions 54, 54 are, as shown in FIG.
The rack rails 53 are arranged at predetermined intervals in the Y direction, that is, the length direction of the rack rails 53, and are engaged with the rack teeth of the rack rails 53. Front and rear pinions 54, 54
As shown in FIG. 5, the rack rails 53, 5
3 are arranged at the same interval. The front and rear pinions 54 are connected so as to rotate synchronously via a rotary shaft 55 supported by bearings 56, 56, respectively. The bearings 56 in the front-rear direction are provided on a frame 57 shown in FIG.

The arm 58 has a radius R of the pinion 54 similar to the arm 38 of the X-direction damping unit 32.
The length L is longer than the length L. The upper end of each arm 58 is attached to the rotation shaft 55 of the pinion 54, and the lower end extends to the outside of the upper frame 44, and is provided so as to be able to rotate integrally with the pinion 54.

Similarly to the support frame 40 of the vibration damping unit 32 in the X direction, the support frame 60 is composed of four support members 61 vertically and vertically arranged and a support frame 64 and a table type. It is configured in combination. The support member 61 of the support frame 60 is connected to a bearing 59 provided at the lower end of the arm 58 via a pin 62, and stands vertically upward. In addition, front and back support materials 6
Rods 1 and 61 are provided between bearings 59 and 59.
3 are connected. The support frame 60 also moves in a vertical plane following the operation of the pinion 54 and the arm 58.

As the damper 67, a damper similar to the damper 47 of the X-direction vibration damping unit 32 is used. The damper 67 is mounted on the upper frame 6 of the support frame 60.
The piston rod 67 ′, which is supported by a bracket 65 attached to the lower surface of the fourth member 4 via a pin 68, and is inserted into the damper 67, is attached to a rotary shaft 55 connecting the front pinions 54, 54. Is connected to the yoke 66 via a pin 69.

The weight 70 is set on an upper gantry 64 of the support frame 60 of the vibration damping unit 52 in the Y direction. The weight W of the upper base 64 may be increased, and the weight 70 may be omitted.

The vibration damping device 30 according to the second embodiment also has a structure in which two sets of vibration damping units 32 and 52 are stacked in two stages, one above the other, and the phases are shifted by 90 ° when viewed from above. Hereinafter, the operation of the vibration damping device 30 according to the second embodiment will be described.

When the building vibrates due to an earthquake or a strong wind, and the roof floor B ′ vibrates in the X direction, for example, a rack 31 fixed to the roof floor B ′ and a two-row rack of a vibration damping unit 32 in the X direction. The rail 33 vibrates together with the roof floor B '.

Then, the roof floor B 'is now X in FIG.
Assuming that the rack rails 33 are displaced from the left to the right in the direction, the two rails 33 are displaced by the same displacement amount. When the rack rail 33 is displaced, the four pinions 34 are simultaneously rotated counterclockwise by a predetermined rotation angle in accordance with the displacement amount.

As described above, when the pinion 34 rotates, the rotation shaft 35 and the arm 38 rotate following the pinion 34, and the support frame 40 is connected to the lower end of the arm 38 via the support material 41 connected by the pin 42. The whole tries to move in the vertical plane.

When the arm 38 follows the pinion 34 and rotates and rotates at the same rotation angle as the pinion 34 as described above, the weight W of the weight 70 installed on the upper part of the vibration damping unit 52 in the Y direction decreases. It acts as a force to rotate the arm 38 clockwise through the support member 41 of the support frame 40 of the whole Y-direction damping unit 52 and the X-direction damping unit 32. The rotational moment for rotating the arm 38 clockwise causes the vibration damping unit 3 in the X direction to rotate.
The second pinion 34 tries to rotate in the direction opposite to the direction of vibration of the rooftop B '. As a result, a force is exerted on the building through the rack rail 33 of the vibration damping unit 32 in the X direction and the gantry 31 so as to displace the building in the direction opposite to the vibration direction of the roof floor B ′, and the building is damped. The effect occurs.

In this case, the vibration period Tk inherent to the vibration damping device 30 is determined by the radius R of the pinion 34 and the length L of the arm 38.
(Where R <L). When the radius R of the pinion 34 is constant, the vibration period Tk increases as the arm length L increases, and the vibration period Tk decreases as the arm length L decreases.

When the roof floor B 'vibrates from the right side to the left side in the X direction in FIG. 5, the vibration damping unit 32 in the X direction operates in the direction opposite to the above.
In this case, the structure also has a damping effect.

When the roof floor B 'vibrates in any direction in the X direction, the vibration and clearance of the components of the vibration damping unit 32 in the X direction are absorbed by the damper 47. The components of the unit 32 operate reliably.

When the roof floor B ′ vibrates in the Y direction, the rack rail 53 of the vibration damping unit 52 in the Y direction
A pinion 54, a rotating shaft 55, an arm 58, a support frame 60,
And the weight 70 is connected to the rack rail 33, the pinion 34, the rotating shaft 55 of the vibration control unit 32 in the X direction,
It operates similarly to the arm 38, the support frame 40, and the weight 70, and performs the vibration damping action of the building. In this case, the vibration damping unit 32 in the X direction acts as a fixed member.

Therefore, also in the second embodiment,
Vibration can be attenuated by giving a vibration damping effect to the building.

Further, the radius R of the pinions 34 and 54 and
By appropriately setting the length L of the arms 38 and 58 in correspondence with the inherent vibration period of the building,
The unique vibration period Tk of 0 can be set freely. In the second embodiment, similarly to the first embodiment, the X-direction damping unit 32 and the Y-direction damping unit 5
2 and a weight 70 is attached to one of the vibration damping units.
May be provided.

FIG. 7 is a front view showing a third embodiment of the present invention, FIG. 8 is a partially longitudinal enlarged front view of a main part of the third embodiment, and FIG. 9 is a sectional view taken along line DD of FIG. FIG.

In the third embodiment shown in FIGS. 7 to 9,
In the first embodiment, with respect to the radius R of the pinion,
An eccentric distance r of the eccentric shaft is configured to be adjustable.

That is, the vibration damping units 3 in the X and Y directions
The position adjustment means 71 of the eccentric shaft is provided in each of the 16 pinions 5 and 18.

The eccentric shaft position adjusting means 71 includes a long groove 72 formed in the pinions 5 and 18, a slider 73 provided integrally with the eccentric shafts 7 and 20, a bracket 74 for attaching various members, A reversible rotary drive source 75, a drive bevel gear 76 and a driven bevel gear 77, and upper and lower bearings 7
It comprises a screw rod 78 supported by 9, 79 and a nut 80 screwed to this.

The long groove 72 is formed to extend from the center of the chord of the arc-shaped pinions 5 and 18 in the radius R direction of the pinions 5 and 18.

The slider 73 is formed at a substantially intermediate portion in the axial direction of the eccentric shafts 7 and 20 in a rectangular shape which fits in the width direction of the long groove 72 and is provided integrally with the eccentric shafts 7 and 20.
And it is fitted so as to be slidable in the length direction of the long groove 72.

The bracket 74 is provided with pinions 5, 18
Is fixed to the upper end side.

The reversible rotation drive source 75 is provided with a bracket 7
4 attached.

The drive bevel gear 76 includes a reversible rotary drive source 7
5 drive shafts. On the other hand, the driven bevel gear 77 is attached to a screw rod 78 and is engaged with the driving bevel gear 76.

The screw rod 78 has a bearing 79,
79 is rotatably supported. The screw rod 78 is connected to the driven bevel gear 77 and the drive bevel gear 7.
6 and is connected to a reversible rotation drive source 75.

The nut 80 is connected to a screw rod 78
Is screwed into. The nut 80 has eccentric shafts 7, 2
0 is provided integrally. The nut 80 is provided on the eccentric shafts 7 and 20 and is prevented from rotating by a slider 73 fitted in the long groove 72, and moves along the long groove 72 in the axial direction of the screw rod 78. I have.

Next, the operation of the eccentric shaft position adjusting means 71 in the third embodiment will be described.

When the reversible rotary driving source 75 is rotated in the forward direction, the screw rod 78 rotates in the forward direction through the driving bevel gear 76 and the driven bevel gear 77. When the screw rod 78 rotates in the forward direction, the nut 80 descends in the axial direction of the screw rod 78 due to the screw action between the screw rod 78 and the nut 80.

When the nut 80 is lowered as described above, the eccentric shafts 7, 20 are lowered together with the nut 80, and the pinions 5, 18 are moved downward.
The eccentric distance r of the eccentric shafts 7, 20 becomes longer than the radius R of the eccentric shaft.

Conversely, when the reversible rotary drive source 75 is rotated in the reverse direction, the drive bevel gear 76, driven bevel gear 77, and screw rod 78 rotate in the reverse direction, and the screw action of the screw rod 78 and the nut 80 causes The eccentric shafts 7, 20 are raised.

When the eccentric shafts 7 and 20 rise, the eccentric distance r between the eccentric shafts 7 and 20 becomes shorter than the radius R of the pinions 5 and 18.

In the first embodiment having the relationship of R> r as described above, if the radius R of the pinion is fixed, and if the eccentric distance r is small, the vibration period T
When k increases and the eccentric distance r increases, the vibration cycle T
It has been confirmed that k becomes small.

Therefore, in the third embodiment, the eccentric distance r can be freely adjusted by the eccentric shaft position adjusting means 71 within the range of R> r, so that the eccentric distance r is controlled in accordance with the inherent vibration period Tb of the building. By changing the vibration cycle Tk of the vibration damping device, it is possible to adjust the vibration damping device to a state in which an optimum vibration damping effect of the building is obtained.

In the third embodiment, the specific structure of the position adjusting means 71 of the eccentric shaft is not limited to those shown in FIGS. 8 and 9; for example, a rack and pinion mechanism may be used. A mechanism may be used.

The other structure and operation of the third embodiment are the same as those of the first embodiment.

In the third embodiment, as in the first and second embodiments, one of the X-direction damping unit 3 and the Y-direction damping unit 16 is provided. The weight 29 may be provided in the unit. In the first, second, and third embodiments, each of the vibration damping units is provided with a pair of rack rails.
The number of rack rails is not limited to this, and the number of rack rails may be single or three or more. Further, in the first, second and third embodiments, the number of pinions provided on each rack rail is two, but may be a single pinion or three or more. Good. The number of rack rails provided on the vibration damping unit and the number of pinions provided on the rack rails should be determined in view of the area of the rooftop of the building, whether or not vibration can be effectively suppressed, and the like. Further, in the first, second and third embodiments, instead of the rack rail, a rail having a roughened upper surface is used, and instead of the pinion, a friction wheel whose rubber is baked on the outer peripheral surface is used. You may.

In the first, second and third embodiments, the shape of the pinion may be any shape as long as the pinion can be rotated so as to mesh with the rack teeth of the rack rail. It may be circular or semi-circular,
The shape of the arc may be shorter than the semicircle.

FIG. 10 is a conceptual diagram showing a fourth embodiment of the present invention, and FIG. 11 is a flowchart of the fourth embodiment.

In the vibration damping equipment of the fourth embodiment shown in FIG. 10, a vibration damping device 81 in which the eccentric shaft position adjusting means 71 of the third embodiment is incorporated in the vibration damping device 1 of the first embodiment is used. ing. The vibration damping device 81 has a vibration damping unit 82 in the X direction and a vibration damping unit 83 in the Y direction.
The eccentric shaft position adjusting means 71 is provided in each of the vibration damping units 82 and 83.
Has been adopted. Further, this vibration damping device 81 is used for building B
Is installed on the rooftop floor B '.

Further, in the fourth embodiment, as shown in FIG. 10, a plurality of sensors 84 for detecting vibration and a computer 85 are provided.

As the sensor 84, for example, an accelerometer is used. The sensor 84 is disposed at an appropriate position for detecting vibration in the high-rise building B. Each sensor 84 is connected to a computer 85.

In this embodiment, the computer 85 is installed on the roof floor B ′ of the building B, and can control at least the position adjusting means 71 of the eccentric shaft of the vibration damping device 81. .

The vibration damping equipment according to the fourth embodiment operates as follows.

First, in a step 86 shown in FIG. 11, the computer 85 preliminarily notifies the computer 85 of the inherent vibration period Tk and eccentricity of the vibration damping device 81 as a function of the radius R of the pinion of the vibration damping device 81 and the eccentric distance r of the eccentric shaft. The relationship between the number of rotations of the reversible rotation drive source of the shaft position adjusting means 71 and the eccentric distance to be adjusted is stored.

Next, at step 87, the sensor 84
The amplitude, frequency and period of the external vibration applied to the building B are detected, and the detection result is sent to the computer 85 in real time.

Next, at step 88, the computer 85
Accordingly, a proper vibration period T ₀ for stopping the external vibration applied to the building B from the detection result sent from the sensor 84 and a unique vibration control device 81 for realizing the vibration period T ₀ . The relationship between the vibration cycle Tk and the control amount and control direction of the eccentric shaft position adjusting means 71 for appropriately adjusting the eccentric distance r are calculated.

Then, in step 89, the computer 85
Thus, a control signal is sent to the eccentric shaft position adjusting means 71 based on the calculation result, and the eccentric shaft eccentric distance r with respect to the radius R of the pinion is adjusted through the eccentric shaft position adjusting means 71. Appropriate force is applied to the building B to suppress external vibration, and the vibration is attenuated.

Next, in step 90, the vibration state of the building B after the application of the vibration damping force is confirmed by the sensor 84, and when it is determined that the vibration state is within the proper range, the vibration damping operation is performed. When it is determined that the vibration is out of the appropriate range, the vibration damping operation is repeated.

As a result, external vibration applied to the building B can be appropriately and promptly and automatically stopped.

[0107]

As described above, according to the present invention, a rack rail having a large number of rack teeth in the longitudinal direction of the rail on the upper surface of the rail, and at least one pinion engaged with the rack teeth of the rack rail. And an eccentric shaft provided at an eccentric position in the radial direction of the pinion, a support member pivotally supported by the eccentric shaft and standing upward, and an upper gantry supported by the support member, which is a table type. Since the vibration damping device is constituted by the supporting frame combined with the above and the weight member provided on the supporting frame, the structure is simple, and the manufacture of each member, the assembly of the device, and the maintenance can be easily performed. It is possible to provide a vibration damping device for a building capable of effectively suppressing external vibration on a horizontal plane.

Further, in the present invention, a plurality of rack rails are laid in parallel on the horizontal plane at a predetermined interval from each other, and one or more pinions are engaged with the rack teeth of each rack rail. , Simple to configure,
It is possible to provide a vibration damping device for a building that can easily manufacture each member, assemble and maintain the device, and can effectively suppress external vibration on a horizontal plane. Further, in the present invention, by appropriately setting the number of rack rails, it is possible to effectively suppress the vibration of a building having a rooftop having various areas.

Further, according to the present invention, a plurality of rack rails having a large number of rack teeth in the longitudinal direction of the rail on the upper surface of the rail and being laid in parallel with a predetermined interval in a horizontal plane; One or more pinions meshed with the rack teeth of each rack rail, an eccentric shaft provided at an eccentric position equidistant in the radial direction of each pinion, and an erect shaft supported by each eccentric shaft and standing up. Two sets of vibration damping units each comprising a supporting frame and a supporting frame in which an upper frame supported by the supporting frame is combined in a table shape, are vertically stacked in two stages, and are orthogonal to each other when viewed from a plane. And the weight members are installed on the upper vibration suppression unit, so that even if vibration is applied to the building from any direction, there is an effect that the vibration can be effectively suppressed.

Further, according to the present invention, at least one rack rail having a large number of rack teeth in the longitudinal direction of the rail on the upper surface of the rail and laid in parallel with each other at a predetermined interval in a horizontal plane, A plurality of pinions are arranged at predetermined intervals in the length direction of each rack rail, and a plurality of pinions meshed with the rack teeth of the rack rail, and one pinion is arranged for each pinion. The other end of the arm is attached to the arm so as to be rotatable via a rotating shaft, and the other end is arranged below. And a weight member provided on the support frame, so that vibration is applied to the building from any direction on the horizontal plane. Even if there is an effect capable of effectively restrain the vibration.

Further, according to the present invention, there are provided a plurality of rack rails having a large number of rack teeth in the longitudinal direction of the rail on the upper surface of the rail and laid in parallel with a predetermined interval in a horizontal plane; Plural sets of pinions arranged at predetermined intervals in the length direction of each rack rail and engaged with the rack teeth of the rack rail, one set of each pinion, and one end of the pinion The other end of the arm is attached to the lower end of the arm, the other end is pin-connected to the lower end of each arm, and the support material is vertically set up and the upper end Two sets of vibration damping units, each including a support frame in which a gantry and a table are combined in a table shape, are stacked in upper and lower stages and arranged in a direction orthogonal to each other when viewed from a plane. Having established the door member, even if vibration is applied from any direction on a horizontal plane relative to the building, there is an effect capable of effectively restrain the vibration.

According to the present invention, the eccentric shaft position adjusting means is provided for each pinion meshed with the rack teeth of the rack rail, and the eccentric shaft is moved by the position adjusting means in the radial direction of the pinion to adjust the eccentric distance. Since it is made possible, there is an effect that external vibration applied to the building can be more effectively and appropriately suppressed.

In the present invention, a rail or floor having a rough upper surface is laid instead of the rack rail, and a friction rotating body is mounted on the rail or floor in place of the pinion. Is simpler, and the present invention also has an effect that external vibration applied to a building can be effectively suppressed.

Further, according to the present invention, a vibration damping device provided with a means for adjusting the position of an eccentric shaft and sensors properly arranged on a building are connected to a computer, and each sensor detects external vibration applied to the building. This detection result is sent to a computer, and the computer uses this computer to control the relationship between the proper vibration cycle for suppressing the external vibration of the building and the inherent vibration cycle of the vibration damping device for realizing the vibration cycle. The control amount and control direction for the position adjusting means for properly adjusting the eccentric distance of the shaft are calculated, and based on the calculation result, the position adjusting means of the eccentric shaft is controlled, and the eccentric shaft of the pinion in the radial direction is controlled. The eccentric distance is adjusted and the inherent vibration cycle of the vibration damper is adjusted to correspond to the vibration cycle of the building, so even if it is a high-rise building, it will be added to the building The parts vibration automatically, there is properly and rapidly effect that may stop.

[Brief description of the drawings]

FIG. 1 is a front view showing a first embodiment of the present invention.

FIG. 2 is a view as viewed in the direction of arrows AA in FIG. 1;

FIG. 3 is an operation explanatory view of the first embodiment.

FIG. 4 is an explanatory diagram showing an attachment state of a vibration damping device to a building.

FIG. 5 is a front view showing a second embodiment of the present invention.

6 is a view taken in the direction of the arrows CC in FIG. 5;

FIG. 7 is a front view showing a third embodiment of the present invention.

FIG. 8 is a partially longitudinal enlarged front view of a main part in the third embodiment.

FIG. 9 is a sectional view taken along line DD of FIG. 8;

FIG. 10 is a conceptual diagram of a fourth embodiment of the present invention.

FIG. 11 is a flowchart of the fourth embodiment.

[Explanation of symbols]

 B Building B 'Rooftop 1 Vibration control device 2 Base 3 X vibration control unit 4 Rack rail 5 Pinion 7 Eccentric shaft 8 Support frame 9 Supporting material of support frame 12 Upper frame of support frame 13 Damper 16 Control in Y direction Vibration unit 17 Rack rail 18 Pinion 20 Eccentric shaft 21 Support frame 22 Support frame support material 25 Upper frame of support frame 26 Damper 29 Weight 30 Vibration control device 31 Mount 32 X direction vibration control unit 33 Rack rail 34 Pinion 35 Rotation shaft REFERENCE SIGNS LIST 38 arm 40 support frame 41 support frame support material 42 arm and support material coupling pin 44 upper frame of support frame 47 damper 52 Y-direction vibration damping unit 53 rack rail 54 pinion 55 rotation axis 58 arm 60 support frame 61 support Frame support material 62 Arm and pin for connecting support material 64 Upper frame of support frame 67 Da Damper 71 Eccentric shaft position adjusting means 72 Long groove for slider 73 Slider 75 Reversible rotation drive source 76 Drive bevel gear 77 Driven bevel gear 78 Screw rod 80 Nut 81 Vibration suppression device 82 X-direction vibration suppression unit 83 Y-direction vibration suppression Unit 84 sensor 85 computer

Claims (8)

(57) [Claims] 1. A rack rail having a large number of rack teeth in the longitudinal direction of the rail on the upper surface of the rail, one or more pinions meshed with the rack teeth of the rack rail, and a radial eccentric position of the pinion. A support frame formed by combining a table-type eccentric shaft provided on the eccentric shaft, a support member supported by the eccentric shaft and standing upward, and an upper gantry supported by the support member; A vibration damping device for a building, comprising: a weight member installed on a frame. 2. The rack rail according to claim 1, wherein a plurality of rack rails are laid in parallel on a horizontal plane at a predetermined distance from each other, and one or more pinions are engaged with rack teeth of each rack rail. Building damping device. 3. A plurality of rack rails having a large number of rack teeth in the longitudinal direction of the rail on the upper surface of the rail, and laid in parallel at a predetermined interval in a horizontal plane; One or more pinions meshed with the rack teeth, an eccentric shaft provided at an eccentric position equidistant in a radial direction of each pinion, and a support material supported by each eccentric shaft and standing up. , A support frame in which an upper frame supported by this support material is combined with a table type, and two sets of vibration damping units comprising: are vertically stacked in two stages, and are arranged in a direction orthogonal to each other when viewed from a plane. A vibration damping device for a building, wherein a weight member is installed in an upper damping unit in combination. 4. At least one rack rail having a large number of rack teeth in the longitudinal direction of the rail on the upper surface of the rail and laid in parallel with a predetermined interval in a horizontal plane; A plurality of pinions are arranged at predetermined intervals in the length direction, and a plurality of pinions meshed with the rack teeth of the rack rail, and one pinion is arranged for each pinion, and one end has a rotating shaft attached to the pinion. The other end of the arm is attached to the lower end of the arm, a support member pin-connected to the lower end of each arm and erected upward, and supported by the support material. A vibration damping device for a building, comprising: a support frame formed by combining a support frame with a table; and a weight member installed on the support frame. 5. A rack rail having a plurality of rack teeth in the length direction of the rail on the upper surface of the rail, and laid in parallel with a predetermined interval in a horizontal plane, and a length direction of each rack rail. A plurality of pinions arranged at predetermined intervals and engaged with the rack teeth of the rack rail, and one pinion is disposed for each pinion, and one end is integrated with the pinion via a rotation shaft. The other end is attached to the lower part, and the supporting material and the upper pedestal, which are pin-connected to the lower end of each arm and are vertically set upward, are combined in a table type. And two sets of vibration damping units with
A vibration damping device for a building, wherein a weight member is installed on an upper vibration damping unit, which is vertically stacked in two stages, arranged in a direction orthogonal to each other when viewed from a plane, and combined. 6. The vibration damping device according to claim 1, wherein an eccentric shaft position adjusting means is provided for each pinion, and the eccentric distance can be adjusted by moving the eccentric shaft in the radial direction of the pinion by the position adjusting means. A vibration damping device for a building. 7. The vibration damping device according to claim 1, wherein a rail or floor having a rough upper surface is laid instead of the rack rail, and frictional rotation is performed on the rail or floor instead of the pinion. A vibration damping device for a building having a body mounted thereon. 8. The vibration damping device according to claim 6, further comprising a means for adjusting the position of the eccentric shaft on a rooftop of the building, and a plurality of sensors for detecting the external vibration of the vibration suppressing device in the building. Arrange, connect the eccentric shaft position adjusting means and each sensor in the vibration damping device to a computer, and stop the external vibration of the computer based on at least the result of the detection of the external vibration of the building detected by each sensor. The relationship between the proper vibration period and the inherent vibration period of the vibration damping device to achieve that vibration period,
A control amount and a control direction for the position adjusting means for appropriately adjusting the eccentric distance of the eccentric shaft are calculated, and a function of controlling the position adjusting means of the eccentric shaft is provided based on the calculation result. Building vibration control equipment.