JP2005083129A - Damping device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enhance assembling workability of a damping device, and to easily perform installation work for the damping device. <P>SOLUTION: In this damping device 10, an upper transfer member 20 and a lower transfer member 22 are provided in a wall surface space 19, and a buffer 24 is provided between the transfer members 20 and 22. The transfer member 20 is attached in a position to be offset in the surface direction (Y-direction) of the space 19 with respect to an upper frame 12. The transfer members 20 and 22 are displaced by predetermined dimensions to a front-surface or rear-surface side with respect to the surface-direction center of the upper and lower frames 12 and 14; the side, to which the transfer members 20 and 22 are displaced, serves as a narrow space; and the other side serves as a wide section. Four dampers 26a-26d, and fastening fittings 36 and 38 are provided on the wide-section side of the transfer members 20 and 22. Since the fastening fittings 36 and 38 are attached to the wide-section side of the transfer members 20 and 22, they can be fixed by means of a long thick lag-screw bolt 46. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a vibration damping device, and more particularly to a vibration damping device configured to suppress tilting of a structure having a space formed by an upper beam, a lower beam, and a column.

  As a vibration control device attached to a structure such as a general wooden house, there is one having a configuration in which a damping device including a hydraulic damper is attached to a wall surface of the structure to attenuate the vibration. In this type of vibration damping device, an upper transmission member and a lower transmission member are provided in a rectangular frame so that the attachment work can be easily performed on the wall surface of the structure. An attenuation device is provided between them (for example, see Patent Document 1).

Further, in this vibration damping device, L-shaped stoppers are fixed to the front and rear surfaces of the upper transmission member and the lower transmission member via fastening members such as nails or wood screws, and the stoppers are further fixed to the frame. Thus, the upper transmission member and the lower transmission member are fixed to the frame.
JP 2002-357015 A

  In the above conventional vibration damping device, since a pair of fasteners are fixed to the front and rear surfaces of the upper transmission member and the lower transmission member, the number of fastening members for fixing the fasteners increases, and the number of work steps increases. It is difficult to increase productivity.

  Furthermore, in the case of a general wooden house, since the wall thickness is about 10 cm, the depth dimension of the fastener is reduced, and accordingly, the hole diameter for inserting the fastening member is also reduced, so that a thin nail or Wood screws will be used. Therefore, there is a possibility that the strength by this fastening member cannot be obtained sufficiently.

  Accordingly, an object of the present invention is to provide a vibration damping device that solves the above-described problems.

  The invention according to claim 1 is an upper frame fixed to the upper beam of the structure, a lower frame fixed to the lower beam of the structure, a wall surface space formed by the upper frame and the lower frame, In a vibration damping device having an upper transmission member provided at an upper portion of a wall surface space, a lower transmission member provided at a lower portion of the wall surface space, and a damping device provided between the upper transmission member and the lower transmission member The upper transmission member and the lower transmission member are offset from the upper frame and the lower frame in the surface direction of the wall surface space, and the upper frame that forms a wide space in the surface direction among the spaces generated by the offset In addition, a stopper is fixed to the lower frame, and an upper transmission member and a lower transmission member are fixed to the stopper.

  The invention according to claim 2 is provided with an anti-sway member that restricts the deflection in the surface direction along one side of the upper transmission member and the lower transmission member in a space wide in the surface direction among the spaces generated by the offset, The vibration on the other side of the upper transmission member and the lower transmission member is limited by the attenuation device.

  The invention according to claim 3 is characterized in that a shock absorber constituting the attenuation device is offset in the surface direction of the wall surface space with respect to the upper transmission member and the lower transmission member.

  According to a fourth aspect of the present invention, a plurality of through holes are provided in the stopper metal, and a short fastening member is inserted into a part of the through hole so that the stopper is supported by the upper transmission member and the lower transmission member. It is fixed to the frame and the lower frame, a long fastening member is inserted through the other part of the through hole, the upper frame and the lower frame are penetrated, and the upper beam and the lower beam are fixed.

  According to the first aspect of the present invention, the upper transmission member and the lower transmission member are offset in the surface direction of the wall surface space with respect to the upper frame and the lower frame, so that a wide space is provided on one side of the upper transmission member and the lower transmission member. Since a relatively large stopper can be attached to this space, it can be firmly fixed using a thick fastening member.

  According to the second aspect of the present invention, the upper transmission member and the upper transmission member and the lower transmission member that limit the deflection in the surface direction of the upper transmission member and the lower transmission member are provided in a wide space in the surface direction among the spaces generated by the offset. The number of anti-sway members can be halved as compared with the case where anti-sway members are provided on both surfaces of the lower transmission member, and the man-hours in the assembly work process can be reduced to increase productivity.

  According to the invention described in claim 3, the shock absorber can be used as a steady rest on the other side in the surface direction by offsetting the shock absorber in the surface direction of the wall surface space with respect to the upper transmission member and the lower transmission member. Accordingly, the number of steady rest members can be reduced and productivity can be increased accordingly.

  According to the invention described in claim 4, a plurality of through holes are provided in the stopper metal, a long fastening member is inserted into a part of the through hole, and the upper frame and the lower frame are penetrated to be fixed to the upper beam and the lower beam. Thus, the vibration damping device can be firmly fixed to the upper beam and the lower beam.

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

FIG. 1 is a front view showing an embodiment of a vibration damping device according to the present invention. FIG. 2 is a side longitudinal sectional view of the vibration damping device.
As shown in FIGS. 1 and 2, the vibration damping device 10 includes an upper frame 12 and a lower frame 14 that are horizontally mounted, and a vertical frame 16 that stands between the upper frame 12 and the lower frame 14. 18, an upper transmission member 20 and a lower transmission member 22 are provided in a wall space 19, and a shock absorber (attenuator) 24 including a hydraulic damper is provided between the upper transmission member 20 and the lower transmission member 22. Is provided. Further, between the vertical frames 16 and 18, steady rests 26 a to 26 d made of a bar material that prevents a shake in the surface direction (Y direction) are horizontally mounted. The vibration damping device 10 is assembled in a factory and transported to the site as a unit.

  The shock absorber 24 is filled with viscous working oil inside the cylinder 24a, and a piston (not shown) provided at the end of the piston rod 24b slides inside the cylinder 24a. It is configured to generate a damping force (resistance force) due to the viscous resistance. The end of the cylinder 24 a is connected to the lower bracket 30 via the support member 28, and the other end of the piston rod 24 b is connected to the upper bracket 34 via the support member 32.

  The lower bracket 30 is fixed to the upper part of the lower transmission member 22, and the upper bracket 34 is fixed to the lower part of the upper transmission member 20. Therefore, when a relative displacement in the X direction occurs between the upper transmission member 20 and the lower transmission member 22, the piston slides in the cylinder 24a of the shock absorber 24 to generate viscous resistance as a damping force, and the upper transmission member The relative displacement between 20 and the lower transmission member 22 is attenuated.

  The upper transmission member 20 is attached to a position offset with respect to the upper frame 12 in the surface direction (Y direction) of the wall surface space 19. Accordingly, the upper transmission member 20 is shifted by a predetermined dimension toward the front side or the rear side from the center of the upper frame 12 in the surface direction, and the shifted side becomes a narrow space and the opposite side becomes a wide section.

  Similarly to the upper transmission member 20, the lower transmission member 22 is also attached to a position that is offset in the surface direction (Y direction) of the wall surface space 19 with respect to the lower frame 14. Therefore, the lower transmission member 22 is shifted by a predetermined dimension to the front side or the rear side from the center in the surface direction of the lower frame 14, and the shifted side is a narrow space and the opposite side is a wide section. In this embodiment, the upper transmission member 20 and the lower transmission member 22 are centered in the Y direction of the upper frame 12 and the lower frame 14 so that the front surfaces (Ya direction) of the upper transmission member 20 and the lower transmission member 22 are widened. It is shifted to the rear surface side (Yb direction).

  Then, on the front side (Ya direction) where the wide section of the upper transmission member 20 and the lower transmission member 22 is formed, four steady rests 26a to 26d are horizontally mounted at a predetermined interval. The lower transmission member 22 is regulated so as not to swing to the front side (Ya direction). Note that the upper transmission member 20 and the lower transmission member 22 are only in contact with the steady rests 26a to 26d, and therefore when the shaking in the X direction is input, the steady transmissions 26a to 26d extend in the extending direction. Slide to perform vibration control. The steady rests 26a to 26d also function as a support member into which a fastening member such as a nail is driven when an indoor decorative panel (not shown) is attached.

  Further, there is no steady rest on the rear surface side (Yb direction) where the narrow section of the upper transmission member 20 and the lower transmission member 22 is formed, and the buffer 24 is offset in the surface direction (Y direction) of the wall surface space 19 instead. Therefore, the cylinder 24a of the shock absorber 24 abuts against a back wall panel (not shown) and restricts the shake on the rear side (Yb direction).

  Thus, since the vibration damping device 10 can be configured to have the steady rests 26a to 26d on one side, the number of steady rests can be reduced by half compared to the configuration having the steady rests on both sides. Therefore, man-hours in the assembly process are reduced, and productivity can be increased.

  The upper transmission member 20 and the lower transmission member 22 are fixed to the upper frame 12 and the lower frame 14 by fasteners 36 and 38 formed in an L shape. Since the stoppers 36 and 38 are attached to the front surface side (Ya direction) where the wide sections of the upper transmission member 20 and the lower transmission member 22 are formed, it is possible to use a metal fitting having a large depth dimension.

Here, the structure of the fasteners 36 and 38 will be described with reference to FIG.
3A and 3B are diagrams showing the stoppers 36 and 38, in which FIG. 3A is a plan view, FIG. 3B is a front view, and FIG. 3C is a side view.

  As shown in FIGS. 3A to 3C, the fasteners 36 and 38 are fixed to the horizontal portion 40 fixed to the upper frame 12 and the lower frame 14, the upper transmission member 20, and the lower transmission member 22. This is an L-shaped metal fitting having a vertical portion 42. The horizontal portion 40 has a plurality of small diameter holes 40a through which small fastening members 44 made of relatively short nails or wood screws are inserted, and a plurality of large diameters through which relatively thick and long lug screw bolts 46 are inserted. A hole 40b is provided.

  The vertical portion 42 is provided with a large number of small diameter holes 42a through which small fastening members 48 made of relatively short nails or wood screws are inserted. The small fastening members 44 and 48 are fastening means for fixing the stoppers 36 and 38, and are inserted into the small-diameter holes 40a and 42a in the factory, and the upper frame 12, the lower frame 14, the upper transmission member 20, and the lower transmission. The member 22 is fixed.

  In addition, the lower hole is drilled in the position facing the large diameter hole 40b of the upper frame 12 and the lower frame 14 so that the lag screw bolt 46 can be easily passed. The lug screw bolt 46 is inserted into the large-diameter hole 40b of the stoppers 36 and 38 when the upper frame 12 and the lower frame 14 are fixed to the upper beam and the lower beam of the structure at the installation site.

FIG. 4 is a front view showing an attached state of the vibration damping device 10. FIG. 5 is a side cross-sectional view showing a state where the vibration damping device 10 is attached.
As shown in FIGS. 4 and 5, when the vibration damping device 10 is installed in a structure such as a general house, the lower frame 14 is placed on the lower beam 50 and the upper frame 12 is applied to the upper beam 52. Make contact. In addition, the height dimension and the width dimension of the vibration damping device 10 are adjusted in the factory in advance according to the size of the wall portion of the installation location.

  Further, the columns 54 and 56 extending in the vertical direction are fixed in a state where they are in contact with both sides of the vibration damping device 10. Thereby, the vertical frames 16 and 18 of the vibration damping device 10 are clamped from the X direction by the columns 54 and 56 erected between the lower beam 50 and the upper beam 52.

  First, the lug screw bolt 46 is inserted into the large-diameter hole 40b of the stopper 38 fixed to the lower frame 14 from the front side of the wall surface space 19 and screwed while being rotated by a tool. Since the lag screw bolt 46 is thicker than a normal wood screw and has a long overall length, the tip portion penetrates the lower frame 14 and is screwed to the lower beam 50. In this embodiment, the four lug screw bolts 46 pass through the stopper fitting 38 and the lower frame 14 and are screwed into the lower beam 50, so that the lower frame 14 and the stopper fitting 38 can be firmly fixed. become.

  Next, the lug screw bolt 46 is inserted into the large-diameter hole 40b of the stopper 36 fixed to the upper frame 12 and screwed while being rotated by a tool. Since the lag screw bolt 46 is thicker than a normal wood screw and has a longer overall length, the tip portion penetrates the upper frame 12 and is screwed to the upper beam 52. In the present embodiment, the four lug screw bolts 46 penetrate the stopper 36 and the upper frame 12 and are screwed into the upper beam 52, so that the upper frame 12 and the stopper 38 can be firmly fixed. become.

  Therefore, it is possible to easily install the vibration damping device 10 at an arbitrary place simply by screwing the upper and lower eight lug screw bolts 46 from the front side of the wall surface space 19, and the work time required for the installation work is shortened and reduced. It becomes possible to install efficiently even with the number of people.

FIG. 6 is a side longitudinal sectional view showing the configuration of the second embodiment.
As shown in FIG. 6, the vibration damping device 60 is provided with grooves 62 and 64 that are offset in the surface direction (Y direction) on the lower surface of the upper frame 12 and the upper surface of the lower frame 14. The upper ends of the upper transmission member 20 and the lower ends of the lower transmission member 22 are fitted into the grooves 62 and 64.

  Therefore, when the upper transmission member 20 and the lower transmission member 22 are attached to the upper frame 12 and the lower frame 14, the upper transmission member 20 and the lower transmission member 22 can be easily aligned by simply fitting them into the grooves 62 and 64. Therefore, the offset amount can be kept constant.

  Further, by fitting the upper transmission member 20 and the lower transmission member 22 into the grooves 62 and 64, the mounting strength in the surface direction (Y direction) is improved, and the structure in which the fasteners 36 and 38 are provided only on one side is sufficient. It becomes possible to ensure strength.

FIG. 7 is a view showing a modified example of the fastener, wherein (A) is a plan view, (B) is a front view, and (C) is a side view.
As shown in FIGS. 7A to 7C, the modified fastener 72 is formed in a crank shape, and fixes the upper transmission member 20 and the lower transmission member 22 to the upper frame 12 and the lower frame 14. Has been. The stopper 72 is fixed to the upper transmission member 20 and the lower transmission member 22 by extending upward from one end (front side) of the horizontal portion 74 and the horizontal portion 74 fixed to the upper frame 12 and the lower frame 14. A vertical portion 76 that extends downward from the other end (rear surface side) of the horizontal portion 74, and a hanging portion 78 that is fixed to the rear surface of the upper frame 12, the lower frame 14, the upper beam 52, and the lower beam 50. Have

  The horizontal portion 74 has a plurality of small diameter holes 74a through which small fastening members 44 made of relatively short nails or wood screws are inserted, and a plurality of large diameters through which relatively thick and long lug screw bolts 46 are inserted. A hole 74b is provided.

  The vertical portion 76 and the hanging portion 78 are provided with a large number of small-diameter holes 76a and 78a through which small fastening members 48 and 80 made of relatively short nails or wood screws are inserted.

  In the fastener 72, the horizontal portion 74 is fixed to the upper frame 12 and the lower frame 14 by the small fastening member 44, and the vertical portion 76 is fixed to the upper transmission member 20 and the lower transmission member 22 by the small fastening members 48 and 80 in the factory. Is done.

  When the lower frame 14 is placed on the lower beam 50 and the upper frame 12 is brought into contact with the upper beam 52 in order to install the vibration damping device 10, the hanging portion 78 of the stopper 72 is connected to the upper beam 52, By abutting against the rear surface of the lower beam 50, the mounting position can be easily aligned accurately.

  Further, by fixing the hanging portion 78 to the rear surfaces of the upper frame 12 and the lower frame 14 and the rear surfaces of the upper beam 52 and the lower beam 50 by the small fastening member 80, it is possible to fix the hanging portion 78 more firmly.

  Furthermore, it becomes possible to raise attachment strength further by setting it as the structure which combined the said Example 2 with this Example 3. FIG.

  In the above embodiment, the case where the vibration damping device is attached to a wooden house as a structure is given as an example. I do not care.

  In the above-described embodiment, the hydraulic damper is used as the shock absorber. However, the present invention is not limited to this. For example, an elastic member such as rubber or a friction damper that generates a frictional force by sliding resistance is applied. You can also.

It is a front view which shows one Example of the damping device which becomes this invention. It is a side surface longitudinal cross-sectional view of a damping device. It is a figure which shows the fasteners 36 and 38, (A) is a top view, (B) is a front view, (C) is a side view. FIG. 3 is a front view showing a mounting state of the vibration damping device 10. 2 is a side longitudinal sectional view showing a state where the vibration damping device 10 is attached. FIG. 4 is a side longitudinal sectional view showing the configuration of Example 2. FIG. It is a figure which shows the modification of a fastener, (A) is a top view, (B) is a front view, (C) is a side view.

Explanation of symbols

10, 60 Damping device 12 Upper frame 14 Lower frame 19 Wall surface space 20 Upper transmission member 22 Lower transmission member 24 Shock absorbers 26a to 26d Anti-sway 36, 38, 72 Stop brackets 40, 74 Horizontal portions 42, 76 Vertical portion 44, 80 Small fastening member 46 Lag screw bolt 50 Lower beam 52 Upper beam 62, 64 Groove 78 Lower part

Claims (4)

An upper frame fixed to the upper beam of the structure;
A lower frame fixed to the lower beam of the structure;
A wall surface space formed by the upper frame and the lower frame;
An upper transmission member provided at an upper portion of the wall space;
A lower transmission member provided at a lower portion of the wall surface space;
An attenuation device provided between the upper transmission member and the lower transmission member;
In a vibration damping device having
Providing the upper transmission member and the lower transmission member offset in the surface direction of the wall surface space with respect to the upper frame and the lower frame;
A damping device characterized in that a fastener is fixed to the upper frame and the lower frame that form a wide space in the surface direction among the spaces generated by the offset, and an upper transmission member and a lower transmission member are fixed to the fastener. apparatus. Provided with an anti-sway member that restricts the deflection in the surface direction along one side of the upper transmission member and the lower transmission member in a space wide in the surface direction among the spaces generated by the offset,
The vibration damping device according to claim 1, wherein a vibration on the other side of the upper transmission member and the lower transmission member is limited by the damping device.   3. The vibration damping device according to claim 1, wherein a shock absorber constituting the damping device is offset with respect to the upper transmission member and the lower transmission member in a surface direction of the wall surface space. A plurality of through holes are provided in the fastener,
A fastening member is fixed to the upper frame and the lower frame that support the upper transmission member and the lower transmission member by inserting a short fastening member through a part of the through hole,
2. The vibration damping device according to claim 1, wherein a long fastening member is inserted through the other part of the through hole so as to pass through the upper frame and the lower frame to be fixed to the upper beam and the lower beam.

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