JP5973864B2 - Gap management tool - Google Patents

Description

  The present invention relates to a clearance management tool for an anti-vibration stopper structure for a vibration isolation frame.

Conventionally, there are various types of vibration isolation racks for suppressing generation of vibration due to operation of the equipment by placing equipment such as power generation equipment or outdoor air conditioners (hereinafter referred to as “equipment equipment”). Proposed.
A general vibration isolation frame is equipped with an upper frame for installing equipment, a lower frame fixed to the installation surface such as a floor slab, and a vibration isolation member interposed between both racks. By absorbing the vibration generated by the vibration isolating member, the vibration is suppressed from being transmitted to the installation surface.
However, when an earthquake or a strong wind occurs, there is a risk that the equipment swings with a predetermined amplitude or more and falls. Therefore, in order to prevent the equipment from shaking with a predetermined amplitude or more, the vibration isolation rack is provided with various stopper structures.

For example, the vibration isolation rack 100 shown in FIG. 16 is provided with an L-type earthquake-resistant stopper fitting 105 on the floor slab 101 around the vibration isolation rack 100 for the purpose of limiting the amplitude in the horizontal direction. .
This anti-vibration gantry 100 includes a lower gantry 104 installed on a floor slab 101, an upper gantry 102 on which equipment is installed, and a vibration isolator that is interposed between the lower gantry 104 and the upper gantry 102 to absorb vibrations. Member 103.
Further, an L-type earthquake-resistant stopper fitting 105 is fixed to the floor slab 101 around the vibration isolator 100 having such a structure by anchor bolts 106.

When the upper frame 102 swings with respect to the lower frame 104 with an amplitude greater than or equal to a predetermined level due to an earthquake or strong wind, the vertical member 105a of the L-type earthquake-resistant stopper fitting 105 collides with the peripheral portion 102a of the upper frame 102. Thereby, the shaking with the amplitude more than the predetermined of the upper mount frame 102 can be suppressed.
However, since the L-type seismic stopper metal fitting 105 suppresses the amplitude of the upper gantry 102 beyond a predetermined level due to a collision, there is a possibility that the peripheral portion 102a of the upper gantry 102 and the L-type seismic stopper metal fitting 105 may be deformed.
In addition, the L-shaped earthquake-resistant stopper fitting 105 can prevent a swing with a predetermined amplitude in the horizontal direction, but the distance between the lower gantry 104 and the upper gantry 102 is separated, or the upper gantry 102 is inclined. Since it does not resist the force (hereinafter referred to as “up-and-down pulling force”), there is a possibility that the equipment installed on the upper frame 102 may fall over.

Patent Document 1 discloses a configuration of an anti-vibration mount 110 that includes an anti-seismic stopper structure 120 shown in FIG.
The vibration isolation frame 110 is provided with an upper frame 112 on a lower frame 114 installed on a floor slab 111 via a vibration isolation member 113.

FIG. 17B is an enlarged view of the anti-seismic stopper structure 120 of the vibration isolation frame 110 and a part thereof is shown as a cross section.
The earthquake-resistant stopper structure 120 includes a stopper bolt 121 suspended from the upper frame 112, and has a configuration in which the stopper bolt 121 is inserted into a through-hole 116 a of an earthquake-resistant frame 116 provided on the lower frame 114. .

  Furthermore, the earthquake-resistant elastic members 115 and 115 are disposed on the upper and lower sides of the earthquake-resistant frame 116 so as to be inserted into the stopper bolts 121. The seismic frame 116 is made of a U-shaped frame material, and stopper bolts 121 are vertically provided through the through holes 116a formed in the upper wall 116A. The earthquake-resistant elastic member 115 includes a cylindrical portion 115a and a flange portion 115b. The stopper bolt 121 is inserted into the cylindrical portion 115a so that the earthquake-resistant elastic members 115 and 115 sandwich the upper and lower sides of the upper wall 116A. . A plurality of protrusions 115c are formed on the outer peripheral edge of the flange portion 115b in the circumferential direction. The earthquake-resistant elastic members 115 and 115 are disposed upside down with the protrusions 115c and 115c facing the upper wall 116A. A constant gap E is provided in the horizontal direction between the through-hole 116a and the cylindrical portions 115a and 115a of the earthquake-resistant elastic members 115 and 115. In addition, constant gaps D and D are provided in the vertical direction between the upper wall 116A and the upper and lower earthquake-resistant elastic members 115 and 115, respectively.

In the vibration isolation base 110, the vibration isolation function and the earthquake resistance function function independently of each other. That is, the function (anti-vibration function) of absorbing vibration generated by the operation of the equipment by the anti-vibration member 113 is achieved by the anti-vibration member 113 interposed between the upper frame 112 and the lower frame 114. The function (earthquake resistance function) for preventing the equipment from falling over due to an earthquake or strong wind is performed by the above-described earthquake resistance stopper structure 120.
In order to exhibit a vibration-proof function in normal times, the earthquake-resistant stopper structure 120 is provided with a structure that insulates the upper frame 112 and the lower frame 114 from each other by providing the earthquake-resistant frame 116 with a horizontal gap E and a vertical gap D. ing.

According to this earthquake-resistant stopper structure 120, when a large shake occurs, the earthquake-resistant elastic members 115 and 115 collide with the earthquake-resistant frame 116, and the upper pedestal 112 is prevented from vibrating with a predetermined amplitude or more. Prevents tilting beyond an angle. In addition, during normal times, the upper frame 112 and the lower frame 114 are insulated by the horizontal gap E and the vertical gap D, so that the anti-vibration function can be exhibited.
However, in a large earthquake exceeding M7, the shaking continues for a long time, and the earthquake-resistant elastic members 115 and 115 collide with the earthquake-resistant frame 116 many times. Further, the collision is not limited to the horizontal direction, and forces in the vertical direction and rotational direction are also applied, and the elastic members 115 and 115 for earthquake resistance are subjected to complicated forces such as twisting and rubbing in addition to compression. Therefore, the elastic members 115 and 115 for earthquake resistance may be damaged.

In view of this, the present inventor studied a vibration-reducing stopper structure 290 shown in FIG. FIG. 18 is a cross-sectional view showing the right side from the center of the stopper bolt 232 located at the center of the vibration reducing stopper structure 290.
The anti-seismic stopper structure 290 includes an upper frame 212 and a lower frame of a vibration isolation frame in which an upper frame 212 is provided on a lower frame 214 installed on a floor slab (not illustrated) via a vibration isolation member (not illustrated). 214 is provided. In addition, the equipment 291 is installed on the upper frame 212.

The anti-seismic stopper structure 290 includes a stopper bolt in which one end is fixed to the through hole 234 formed in the protruding plate portion 212a of the upper frame 212 and the lower frame 214, and the other end is inserted into the through hole 234. 232.
The stopper bolt 232 is inserted with a vibration-reducing elastic tube 238 composed of an outer layer 238 b made of a sliding material and an inner layer 238 a made of a damping material, and the vibration-reducing elastic tube 238 is inserted into the through hole 234. the edge and the horizontal direction are disposed with a predetermined gap e _1.

Therefore, when the upper frame 212 and the lower frame 214 move relative to each other in the horizontal direction with an amplitude equal to or greater than the gap e ₁ when subjected to an impact due to an earthquake, first, the outer layer 238b of the elastic tube for vibration reduction 238b is first. Collides with the edge of the through-hole 234, and the sliding effect disperses the force of twisting and rubbing, and the compressive force is relaxed against the inner layer 238a of the vibration-reducing elastic tube 238. For this reason, it becomes possible to improve the life of the elastic tube 238 for vibration reduction.

  In addition, a first vibration reduction washer 250 is inserted through the through hole 234 and a second vibration reduction washer 256 is inserted below the elastic tube for vibration reduction 238. Further, upper nuts 252 and 252 are attached to the upper part of the first vibration reduction washer 250 via the first washer 248, and the lower part of the second vibration reduction washer 256 via the second washer 258. A lower nut 260 is attached. The upper nuts 252 and 252 and the lower nut 260 fix the positions of the first and second vibration reducing washers 250 and 256 and the vibration reducing elastic tube 238.

Between the Hanedashi plate portion 212a of the first and second GenShin washers 250 and 256 and the upper frame 212, and a constant gap _{d 1} is provided in a vertical direction.
Thus the upper frame 212 is the gap d ₁ or more amplitude, vertical when the direction when the vibration or the upper frame 212 is tilted relative to the lower frame 214, Hanedashi plate through-hole 234 of the upper frame 212 is provided It is possible to obtain an effect of attenuating the vibration energy by contacting the portion 212a.

JP 7-208542 A

The anti-vibration stand provided with the anti-seismic stopper structure 290 described based on FIG. 18 has a horizontal gap e ₁ and a vertical gap d _1, and by having the gap, Can exhibit an anti-vibration function that inhibits the vibration of the equipment 291 from being transmitted to the floor slab. Therefore, if the gaps e ₁ and d ₁ are too narrow, the above-mentioned vibration isolation function cannot be achieved.

On the other hand, when the gaps e ₁ and d ₁ are too wide, the upper pedestal 212 and the lower pedestal 214 move relative to each other with a large amplitude due to a large shake such as an earthquake.
Therefore, in the horizontal direction, a large impact force is generated between the vibration-reducing elastic tube 238 and the through hole 234 in the event of a collision. Similarly, in the vertical direction, a large impact force is generated between the spring-out plate portion 212a of the upper pedestal 212 and the first and second vibration reducing washers 250 and 256 at the time of collision.
Due to these impact forces, the constituent members of the vibration-reducing stopper structure 290 may be damaged, and in some cases, the equipment 291 installed on the upper frame 212 may be damaged.

Accordingly, the gaps e ₁ and d ₁ need to be set appropriately. In the case where the horizontal gap e ₁ and the vertical gap d ₁ are about 1 mm, the present inventors can suppress the impact force when the anti-vibration function is achieved and the seismic function is fulfilled. I got the knowledge that I can do it.
Conventionally, in the stopper structure without the vibration-reducing elastic tube 238 and the first and second vibration-reducing washers 250, 256, the vertical gap is 3 to 5 mm, and the upper frame is greatly inclined by the earthquake, There was a risk of the equipment falling over.
In the anti-seismic stopper structure 290, by setting the clearance in the vertical direction to 1 mm, the upper frame 212 is not greatly inclined due to the earthquake, and the equipment device 291 can be prevented from falling.

In GenShin stopper structure 290, in order to set the horizontal clearance e ₁ and the vertical direction of the gap d ₁ properly, it is necessary to install the proper installation process. This installation process will be described with reference to FIGS.

  FIG. 19A shows an anti-seismic stopper structure 290 at the time of shipment from the factory. The stopper bolt 232 is inverted on the lower frame 214 and fixed with the fixing nut 266, and the lower nut 260, the second washer 258, the second vibration reducing washer 256, and the vibration reducing elastic tube 238 are sequentially inserted into the stopper bolt 232. To do. Next, the upper frame 212 is installed on a vibration-proof member (not shown), and the vibration-reducing elastic tube 238 is inserted into the through hole 234 of the spring-out plate portion 212a. Further, the first vibration reducing washer 250, the first washer 248, and the upper nuts 252 and 252 are sequentially inserted.

However, the lower nut 260 is screwed in until it comes into contact with the fixed nut 266 and the upper nuts 252 and 252 are temporarily fixed so as not to be detached from the stopper bolt 232.
Further, when the upper frame 212 is installed on a vibration-proof member (not shown), the horizontal gap e ₁ between the vibration-reducing elastic tube 238 and the through-hole 234 provided in the spring-out plate portion 212a is extended over the entire circumference. Adjust to about 1 mm.

Next, it carries in to the spot and fixes the lower mount 214 to the floor slab (not shown) of the installation surface. Further, as shown in FIG. 19B, the equipment device 291 is installed on the upper frame 212. As a result, a vibration isolation member (not shown) interposed between the upper frame 212 and the lower frame 214 sinks due to the weight of the equipment 291, and accordingly, the upper frame 212 and the lower frame 214 come close to each other. That is, the jumping plate part 212a is also lowered downward.
Next, as shown in FIG. 19 (c), the lower nut is set so that the gaps d ₁ and d ₁ between the first and second vibration reducing washers 250 and 256 and the protruding plate portion 212a are about ₁ mm. 260 and upper nut 252 to adjust and fasten.
Through the above steps, the installation of the vibration isolation frame including the vibration damping stopper structure 290 is completed.

In this process, the horizontal gap e ₁ between the vibration-reducing elastic tube 238 and the through hole 234 provided in the spring-out plate portion 212a is an adjustment in the factory, so that it can be adjusted relatively easily. is there.
However, it is necessary for the operator to visually adjust the gaps d ₁ and d ₁ between the first and second vibration reduction washers 250 and 256 and the spring plate 212a on site. The installation location of the vibration isolation base is often a place where it is difficult to work, for example, near a wall, and it is difficult to adjust the gaps d ₁ and d ₁ .

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a clearance management tool that can easily adjust the clearance between the vibration reducing washer and the spring plate portion of the gantry in the vibration isolating stopper of the vibration isolation gantry.

In order to solve the above problems, a gap management tool according to the present invention includes a lower frame, a vibration isolation member installed on the lower frame, an upper frame placed on the vibration isolation member, and the lower frame. A clearance management tool provided in the anti-seismic stopper structure mounted between the upper pedestals, a laterally extending from either the upper pedestal or the lower pedestal, and a spring plate portion in which a through hole is formed, One end is fixed to the other of the upper frame or the lower frame, and the other end is inserted into the through hole, and the stopper bolt is screwed into the stopper bolt and vertically moved through the spring plate part. and arranged nut, a washer interposed respectively between said inserted through the stopper bolt through hole and the upper and lower nut, in GenShin stopper structure consisting of a pair of notch is disposed to face formed No And over DOO, in the plate of the pair, and a connecting plate portion connecting the opposite end to the opening side of the notch on the plate upper one of said pair of plates, said Hanedashi plate The lower plate of the pair of plates is inserted along the upper surface of the washer disposed on the upper side of the portion so as to be along the lower surface of the washer disposed on the lower side of the jumping plate portion. Thus, the vertical distance between washers is limited.

In addition, the gap management tool is provided at the center in the up-and-down direction between the pair of plates, and clearly indicating that the position is the center in the up-and-down direction between the pair of plates. Features.
Further, in the gap management tool, the indication means is a mark marked at the center in the vertical direction of the outer surface of the connection plate portion.
Further, in the gap management tool, the explicit means is a concave portion formed at the center in the vertical direction of at least one of the both side end portions of the connection plate portion, and having an inclination in the opening portion. .

Further, in the gap management tool, the clarification means is a convex portion formed at the center in the vertical direction of at least one of the side end portions of the connection plate portion.
Also, the a gap management tool, provided a linear portion to the contour of the upper and lower washer sac Chi hand in the down Shin stopper structure, of the pair of plates, into contact with a washer provided with the straight portions The plate is characterized in that a bent portion is formed at the tip of the end opposite to the connecting plate portion, and the bent portion is locked to the straight portion of the washer.

  According to the present invention, in the anti-seismic stopper structure, the gap management tool is sandwiched from above and below the upper surface of the washer disposed above the jump plate portion and the lower surface of the washer disposed below the jump plate portion. By inserting in such a manner, the distance between the upper and lower washers can be limited by a pair of plates so as not to be separated beyond a predetermined interval.

  Further, in the case where there is an explicit means for clearly indicating that the position is the center in the vertical direction between the pair of plates, the gap management tool is disposed on the upper side of the jump plate part. The upper surface of the washer and the lower surface of the washer disposed on the lower side of the protruding plate portion are inserted so as to be sandwiched from above and below. Therefore, the vertical clearance can be easily adjusted by setting the anti-seismic stopper structure so that the explicit means matches the height of the spring-out plate portion.

  Further, in the case where the indication means is a mark marked at the upper and lower center of the connection plate portion, it is possible to visually align the protruding plate portion to the center of the connection plate portion.

  Furthermore, in the case where the explicit means is a recess formed on both side end portions of the connection plate portion, by fastening the upper and lower nuts in a state where the recess is fitted into the protruding plate portion, For example, even if the work space is narrow and it is difficult to visually align the jumping plate part to the center of the connection plate part, the jumping plate part can be easily placed in the center of the connection plate part based on the operator's fingertip feeling. Can be aligned.

  In addition, in the case where the explicit means is a convex portion formed on both side end portions of the connecting plate portion, the operator confirms the convex portion and the protruding plate portion by hand, while the protruding plate By aligning the portion with the position of the convex portion, it is possible to easily align the spring-out plate portion with the center of the connection plate portion based on the fingertip feeling of the operator.

Provided straight portions to the outer shape of the upper and lower washer sac Chi hand, the bent portion of the gap management device, to have a structure to be engaged to the linear portion, the gap management device is retained. As a result, the gap management tool does not come off during transportation from the factory where the assembly process is performed to the installation site. In addition, even after installation, the gap management tool does not come off due to vibrations of the equipment and the like, so that the gap can be adjusted using the gap management tool when the equipment is replaced. In addition, it is possible to easily adjust the maintenance based on the explicit means.

It is a perspective view which shows the vibration isolator stand which is an example of embodiment of this invention. It is a front view of the vibration isolation stand which is an example of embodiment of this invention. It is a top view of the vibration isolator which is an example of embodiment of this invention. It is a figure which shows the anti-seismic stopper structure to which the clearance gap management tool of 1st Embodiment of this invention is applied, Fig.4 (a) is a front view, FIG.4 (b) is sectional drawing, FIG.4 (c) is a Z direction. It is an arrow view. It is a figure which shows the clearance gap management tool of 1st Embodiment of this invention, Fig.5 (a) is a perspective view, FIG.5 (b) is an expanded view. It is a top view which shows the rectangular washer applied to 1st Embodiment of this invention. FIG. 7A shows the installation procedure of the vibration isolation frame according to the first embodiment of the present invention, FIG. 7A shows the state after assembly at the factory and before shipment, FIG. 7B shows the state after installation of the equipment, and FIG. c) shows the state after adjusting the gap in the vertical direction. It is a figure which shows the clearance gap management tool of the modification 1 of 1st Embodiment of this invention, Fig.8 (a) is a perspective view, FIG.8 (b) is an expanded view. It is a figure which shows the anti-seismic stopper structure to which the clearance gap management tool of the modification 1 of 1st Embodiment of this invention is applied. It is a figure which shows the clearance gap management tool of the modification 2 of 1st Embodiment of this invention, Fig.10 (a) is a perspective view, FIG.10 (b) is an expanded view. It is a figure which shows the clearance gap management tool of the modification 3 of 1st Embodiment of this invention, Fig.11 (a) is a perspective view, FIG.11 (b) is an expanded view. Sectional drawing of the nut with rubber | gum applied to 2nd Embodiment of this invention is shown. It is a front view which shows the anti-seismic stopper structure of 2nd Embodiment of this invention. The perspective view of the wedge nut applied to the modification 1 of 2nd Embodiment of this invention is shown. It is a perspective view which shows the anti-seismic stopper structure of 2nd Embodiment of this invention. The vibration isolation stand provided with the L-shaped earthquake-resistant stopper metal fitting as a prior art example is shown. FIG. 17 (a) shows the overall structure of the anti-vibration mount, and FIG. 17 (b) shows the anti-vibration stopper structure. An anti-seismic stopper structure as a conventional example is shown. FIG. 19 (a) shows a state before assembly after assembly at a factory, and FIG. 19 (b) shows a state after installation of equipment, FIG. 19C shows a state after adjusting the gap in the vertical direction.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a drop-off prevention device that is an embodiment to which the present invention is applied will be described in detail with reference to the drawings.
In addition, in the drawings used in the following description, in order to make the features easy to understand, there are cases where the portions that become the features are enlarged for the sake of convenience, and the dimensional ratios of the respective components are not always the same as the actual ones. Absent.

(First embodiment)
FIG. 1 is a perspective view showing a structure of a vibration isolation rack 1 to which a gap management tool 3 of the present invention is applied, FIG. 2 is a front view, and FIG. 3 is a plan view.
The vibration isolation frame 1 includes a lower frame 14 fixed to a floor slab 18 of a building or the like with an anchor bolt (not shown) and the like, and an upper frame 12 disposed to face the lower frame 14 with a predetermined gap therebetween. ing.

As shown in FIGS. 1 and 2, a plurality of (6 in the form of FIG. 1) vibration isolating members 16 are interposed between the upper frame 12 and the lower frame 14. Thus, the upper frame 12 is elastically supported on the lower frame 14. The anti-vibration member 16 includes an upper member 16a and a lower member 16b, and a spring material (not shown) housed therein, and is disposed between the lower frame 14 and the upper frame 12, and the upper frame 16 12 has a function of absorbing and buffering vibrations generated from the equipment and the load of the equipment installed on the machine 12.
In consideration of the position of the center of gravity of the equipment installed on the upper frame 12, a plurality of vibration isolation members 16 are installed at appropriate positions between the lower frame 14 and the upper frame 12.

As shown in FIGS. 1 and 3, the upper frame 12 has a shape in which four upper frame members 20 a, 20 b, 20 c, and 20 d are connected in a rectangular shape via four upper corner hardwares 22. Yes.
The first upper frame member 20a and the second upper frame member 20c are each provided with two attachment pieces 24. Each attachment piece 24 is provided with an attachment hole 26 for fixing the equipment. After the equipment is placed on the upper frame 12, a bolt is inserted into the attachment hole 26 and screwed into the equipment. Thus, the equipment can be fixed.
Similarly, the lower gantry 14 has a shape in which four lower frame members 29a, 29b, 29c, and 29d are connected in a rectangular shape via four lower corner hardwares 28 as shown in FIG. .
The frame members constituting the upper pedestal 12 and the lower pedestal 14 are formed by forming a rust-proof treated steel or FRP material into a rectangular frame.

As shown in FIG. 1, an anti-seismic stopper structure 30 is provided between the upper corner hardware 22 and the lower corner hardware 28.
FIG. 4A shows a detailed structure of the vibration damping stopper structure 30, and FIG. 4B shows a cross-sectional structure thereof. FIG. 4C shows an arrow view from the arrow Z in FIG.

  The anti-seismic stopper structure 30 extends in the horizontal direction from the upper frame 12, one end is fixed to the protruding plate part 22 a in which the through hole 34 is formed, and the lower frame 14, and the other end is inserted into the through hole 34. Stopper bolt 32, upper nuts 52, 52, rectangular washer 4, first vibration reducing washer 50, vibration reducing elastic tube 38, and second vibration reducing washer 56 inserted into or screwed into the stopper bolt 32. , A washer 58 and a lower nut 60. In addition, the gap management tool 3 of the present invention is mounted from the horizontal direction so as to sandwich the rectangular washer 4, the first vibration reduction washer 50, the spring plate 22a, the second vibration reduction washer 56, and the washer 58. It is configured.

The lower corner hardware 28 of the lower gantry 14 is formed with a jumping plate portion 28a. In addition, a through hole 35 is formed in the jumping plate portion 28a.
The stopper bolt 32 is inserted with the bolt head of the stopper bolt 32 and the fixing nut 66 so that the lower corner metal piece 28 is sandwiched and fixed while the bolt head is turned upside down and the shaft tip is turned upside down. . Further, the tip end side of the stopper bolt 32 is inserted into a through hole 34 formed in the protruding plate portion 22 a of the upper corner hardware 22.

  The through hole 34 formed in the protruding plate portion 22a of the upper corner hardware 22 has a diameter sufficiently larger than the outer diameter A of the bolt portion of the stopper bolt 32 (see FIG. 4A). Between the edge of the through hole 34 and the outer peripheral surface of the stopper bolt 32, a vibration-reducing elastic tube 38 having an outer diameter B (see FIG. 4A) is interposed.

As shown in FIG. 4B, the vibration-reducing elastic tube 38 has a two-layer structure including an inner layer 38a and an outer layer 38b.
The inner layer 38a is made of a material having both elasticity and damping properties. For example, a thickness of about 5 mm in the radial direction, a hardness of 30 to 40 degrees, and a material such as a damping rubber such as butyl rubber having a dynamic viscoelastic property tan δ of 0.5 or more, or a high damping styrene elastomer is used. be able to. The outer layer 38b can be formed of a material having a thickness of about 1 to 2 mm in the radial direction, a hardness of 70 degrees or more and a friction coefficient μ = 0.4. Specifically, a fluorine resin material such as polytetrafluoroethylene (PTFE) is preferable.

Further, a gap e ₂ is secured in the horizontal direction between the vibration-reducing elastic tube 38 and the edge of the through hole 34. The gap _{e 2} is preferably about 1 mm. The gap e ₂ is set according to the size of the maximum seismic intensity of earthquakes envisaged, not limited to 1 mm, it may be formed to a size that is assumed in the design stage.

A first vibration reducing washer 50 is provided on the upper end side of the vibration reducing elastic tube 38. The first vibration reducing washer 50 is a washer made of a material having both elasticity and damping properties, and the inner diameter of the first vibration reducing washer 50 is substantially the same as the outer diameter B (see FIG. 4A) of the vibration-reducing elastic tube 38. The elasticity for vibration reduction is formed by fitting the inner diameter of the first vibration reduction washer 50 into the outer diameter B of the vibration reduction elastic pipe 38 by the tight force of the first vibration reduction washer 50. It is held in the tube 38.
As a material of the first vibration reducing washer 50, for example, a high damping rubber having a large loss factor such as butyl rubber having a hardness of 30 to 40 degrees and a dynamic viscoelastic property tan δ of 0.5 or more, or a high damping styrene elastomer Etc. can be used.

Further, a rectangular washer 4 is provided above the first vibration reduction washer 50. A plan view of the rectangular washer 4 is shown in FIG.
The rectangular washer 4 has a rectangular outer shape, and step portions 4a and 4a are formed at two corners on one side among the four corners. The step portions 4a and 4a have a straight portion 4a ₁ facing the side 4c opposite to the step portions 4a and 4a.
The rectangular washer 4 is made of a steel material or the like, and a hole 4b through which the stopper bolt 32 is inserted is formed at the center. The hole 4b is formed to be larger than the outer diameter A of the stopper bolt 32 (see FIG. 4A) and smaller than the outer diameter B of the vibration-reducing elastic tube 38 (see FIG. 4A).

  A second vibration reducing washer 56 is provided below the vibration-reducing elastic tube 38. The second vibration reduction washer 56 has the same shape as the first vibration reduction washer 50, that is, the inner diameter of the second vibration reduction washer 56 is fitted into the outer diameter B of the elastic tube 38 for vibration reduction. Thus, the elastic vibration-reducing pipe 38 is held by the tight force of the second vibration-reducing washer 56.

  Further, a washer 58 is provided below the second vibration reducing washer 56. The washer 58 is made of a steel material or the like, and the inner diameter thereof is larger than the outer diameter A of the stopper bolt 32 (see FIG. 4A), and the outer diameter B of the vibration-reducing elastic tube 38 (see FIG. 4A). It is formed smaller.

As shown in FIG. 4A and FIG. 4B, the clearance management tool 3 is inserted into the anti-seismic stopper structure 30.
FIG. 5A shows a perspective view of the gap management tool 3 in the present embodiment. FIG. 5B shows a developed gap management tool 93 obtained by developing the gap management tool 3 shown in FIG.
The gap management tool 3 forms a substantially U-shape by the first and second horizontal plates (plates) 3c and 3d that face each other in parallel and the connection plate portion 3e that connects one end thereof.
The material of the gap management tool 3 is not particularly limited, but a steel material or the like can be used as an example. Further, it may be made of a metal material such as aluminum or a resin material.

  The gap management tool 3 inserts the first horizontal plate 3 c into the upper surface of the rectangular washer 4 and inserts the second horizontal plate 3 d into the lower surface of the washer 58. The vibration reduction washers 50 and 56, the rectangular washer 4 and the washer 58 are sandwiched.

In the present embodiment, the vertical distance between the rectangular washer 4 and the washer 58 is determined by the height of the elastic tube for vibration reduction 38, but is a vibration reduction stopper structure that does not include the elastic tube for vibration reduction 38. However, since the vertical distance between the first and second horizontal plates 3c and 3d is limited by the connecting plate portion 3e, the vertical distance between the rectangular washer 4 and the washer 58 can be determined at a predetermined interval. This facilitates the adjustment when adjusting the vertical gaps d ₂ and d ₂ (see FIG. 4A) of the first and second vibration reduction washers 50 and 56.

  As shown in FIGS. 5A and 5B, the first and second horizontal plates 3c and 3d are formed with notches 3h and 3h having openings on the side opposite to the connection plate 3e. . Since the width of the notches 3h and 3h is formed larger than the outer diameter A of the stopper bolt 32 (see FIG. 4A), the stopper bolt 32 is inserted so as to straddle the notches 3h and 3h. Can do.

Further, the first horizontal plate 3c is formed with bent portions 3b and 3b formed by bending the tip of the end opposite to the connection plate portion 3e so as to be inclined toward the second horizontal plate 3d.
As shown in FIG. 4 (c), the bent portions 3 b and 3 b are inserted into the step portions 4 a and 4 a of the rectangular washer 4 described above, and serve to prevent the gap management tool 3 from coming off.

  As shown in FIG. 4 or FIG. 5A, the vertical central portion of the connecting plate portion 3e when the first and second horizontal plates 3c and 3d are horizontal and the gap management tool 3 is arranged in a U-shape. Is provided with an explicit means for clearly indicating that the position is the central portion in the vertical direction of the first and second horizontal plates 3c, 3d. The gap management tool 3 of the present embodiment is provided with three types of explicit means.

That is, a straight line (a mark) 3a marked at the center in the vertical direction on the outer surface of the connection plate portion 3e, a recess 3f formed at one center in the vertical direction at the end of the connection plate portion 3e, and having an inclination at the opening, It is the convex part 3g formed in the one vertical direction center of the edge part of the board part 3e.
The straight line 3a, the concave portion 3f, and the convex portion 3g, which are the explicit means, may be provided in the connection plate portion 3e, or may be provided in combination of two or more.

The straight line 3a has a thickness substantially the same as the thickness of the protruding plate portion 22a and is marked on the outer surface of the connecting plate portion 3e. The straight line 3a is preferably marked with a color such as red that can be easily identified by the operator.
The concave portion 3f has an inclined surface 3fa on the inner wall of the concave portion 3f, and the bottom of the concave shape is flat. The width of the bottom portion 3fb (the width in the vertical direction) is substantially equal to the thickness of the protruding plate portion 22a. It is the same width.
The width (vertical width) of the protruding portion of the protruding portion 3g is substantially the same as or slightly larger than the thickness of the protruding plate portion 22a.

These manifesting means clearly and centrally indicate the central portion of the connection plate portion 3e, and the operator jumps in the step of installing the vibration-damping stopper structure 30 based on these manifesting means. The vertical gaps d ₂ and d ₂ between the outlet plate portion 22 a and the first and second vibration reduction washers 50 and 56 are adjusted. The adjustment method by each explicit means will be described in the installation procedure described later.

As shown in FIG. 4A, upper nuts 52 and 52 are fastened above the gap management tool 3. Similarly, a lower nut 60 is fastened below the gap management tool 3. By these, the position of the clearance management tool 3 is fixed.
The upper nuts 52 and 52 are prevented from being loosened by using a double nut mechanism. Similarly, the lower nut 60 may be a double nut mechanism. However, as shown in FIG. 4A, when there is not enough space for the lower nut 60 to be a double nut mechanism, the lower nut 60 should be firmly fastened to the washer 58 side. Can be abbreviated.

Next, based on FIGS. 7A, 7B, and 7C, an installation procedure of the vibration isolation rack 1 provided with the anti-vibration stopper structure 30 will be described.
FIG. 7A shows the anti-seismic stopper structure 30 at the time of shipment from the factory. The assembly process in the factory up to FIG. 7A will be described below.

  The stopper bolt 32 is inverted and fixed to the protruding plate portion 28a of the lower corner hardware 28 by the fixing nut 66, and the lower nut 60 is screwed into the stopper bolt 32, and the washer 58, the second vibration reducing washer 56, and the reduction. The seismic elastic tube 38 is sequentially inserted. Next, the upper frame 12 is installed on a vibration isolating member (not shown), and the vibration-reducing elastic tube 38 is inserted into the through hole 34 formed in the spring-out plate portion 22a of the upper corner hardware 22. Further, the first vibration reducing washer 50 and the rectangular washer 4 are sequentially inserted into the stopper bolt 32, and finally the upper nuts 52 and 52 are screwed.

However, the lower nut 60 is screwed until it comes into contact with the fixed nut 66, and the upper nuts 52 and 52 are temporarily fixed so as not to be detached from the stopper bolt 32.
Also, when installing the upper frame 12 to the vibration isolating member (not shown), over the entire circumference in the horizontal direction of the gap e ₂ between the through hole 34 formed in the plate portion 22a Hanedashi and GenShinyo elastic tube 38 Adjust to about 1 mm.
Adjustment of horizontal clearance e ₂ between GenShinyo elastic tube 38 and the through holes 34 are the adjustments in the factory, it is possible to relatively easily adjusted.

Next, the gap management tool 3 is inserted. When inserting the first horizontal plate 3c clearance management device 3 on the upper surface of the rectangular washer 4, the stepped portion 4a in the rectangular washer 4, the straight portions 4a ₁ 4a, the bent portion 3b of the first horizontal plate 3c, Insert 3b to prevent it from coming off.

  Next, it carries in to the spot and fixes the lower mount 14 to the floor slab (not shown) of an installation surface. Further, as shown in FIG. 7B, the equipment device 91 is installed on the upper frame 12. As a result, a vibration isolating member (not shown) interposed between the upper frame 12 and the lower frame 14 sinks, and the upper frame 12 and the lower frame 14 come close to each other. That is, the jumping plate portion 22a is also lowered downward.

Next, as shown in FIG. 7 (c), the lower nut is adjusted so that the gaps d ₂ and d ₂ between the first and second vibration reducing washers 50 and 56 and the spring plate 22a are about 1 mm. 60 and upper nut 52 to adjust and fasten.

In adjusting the gaps d ₂ and d ₂ , the relative positions in the vertical direction of the spring plate 22 a and the gap management tool 3 are adjusted based on the explicit means.
When the adjustment is performed using the straight line 3a as the explicit means, the straight line 3a of the connection plate portion 3e in the gap management tool 3 is visually observed from the horizontal direction so as to coincide with the protruding plate portion 22a of the upper corner hardware 22. While confirming, the positions of the upper nut 52 and the lower nut 60 are adjusted, and the center in the vertical direction of the connecting plate portion 3e is made to coincide with the protruding plate portion 22a.

When adjustment is performed using the recess 3f as the clarification means, the gap management tool 3 is rotated together with the rectangular washer 4, and the connection plate portion 3e of the gap management tool 3 on the side where the recess 3f is formed. The end is pressed against the edge of the spring plate 22a. At that time, the center of the concave portion 3f is made to coincide with the protruding plate portion 22a. In this state, the positions of the upper nut 52 and the lower nut 60 are adjusted so that the center in the vertical direction of the connection plate portion 3e coincides with the spring-out plate portion 22a.
In other words, the vertical position of the jump plate portion 22a can be matched by matching the bottom portion 3fb of the recess 3f with the vertical direction of the jump plate portion 22a.

When the adjustment is performed using the convex portion 3g as the clarification means, the operator performs the adjustment while confirming the convex portion 3g and the protruding plate portion 22a in the gap management tool 3 with a fingertip. Specifically, the upper part of the convex part 3g, the protruding plate part 22a, the lower part of the convex part 3g, and the lower surface of the protruding plate part 22a are touched with a fingertip, and the level difference between the convex part 3g and the protruding plate part 22a in the vertical direction. Are adjusted so that the positions of the upper nut 52 and the lower nut 60 are adjusted so that the center of the connecting plate portion 3e in the vertical direction coincides with the protruding plate portion 22a.
This operation can be performed by tracing the convex portion 3g and the jumping plate portion 22a with the fingertips even in a dark place.

After the position of the upper nut 52 and the lower nut 60 is determined through any of the above procedures, the upper nuts 52 and 52 are double-tightened and the lower nut 60 is fastened upward.
Thus, the vertical direction central portion of the connecting plate portion 3e, by matching the Hanedashi plate portion 22a of the upper corner fittings 22, Hanedashi vertically above the gap d ₂ between vertically downward with respect to the plate portion 22a The gap d2 of the _two coincides.

In the gap management tool 3, the distance between the first horizontal plate 3c and the second horizontal plate 3d, that is, the height of the connecting plate portion 3e is a rectangular washer sandwiched between the first horizontal plate 3c and the second horizontal plate 3d. 4. The first vibration reduction washer 50, the spring plate 22a, the second vibration reduction washer 56, and the washer 58 are formed 2 mm larger than the total thickness.
That is, the sum of the vertically above the gap d ₂ between vertically below the gap d ₂ gaps with respect to the plate portion 22a Hanedashi has a 2 mm.
Thus, the explicit means of gap management device 3, by matching the vertical direction above the gap d ₂ and vertically below the gap d ₂ relative Hanedashi plate portion 22a, a gap d _2, d ₂ are both It can be 1 mm.

Through the above steps, the installation of the vibration isolation frame provided with the vibration reduction stopper structure 30 is completed.
The gap management tool 3 has a configuration in which the bent portion 3b is inserted into the stepped portion 4a of the rectangular washer 4, and is held in an attached state after installation. When the bent portion 3b is locked to the rectangular washer 4, the gap management tool 3 does not come off even when vibration of the equipment 91 or the like is applied. The gaps d ₂ and d ₂ can be adjusted using. In addition, the gaps d ₂ and d ₂ can be easily adjusted based on the explicit means during maintenance.

(Modification 1 of the first embodiment)
FIGS. 8A and 8B show a gap management tool 5 which is a first modification of the first embodiment of the present invention, and FIGS. 5A and 5B show the gap management tool 3 of the first embodiment. ). FIG. 9 is a plan view of the anti-seismic stopper structure 41 to which the gap management tool 5 is attached, and corresponds to FIG.
In addition, about the component same as the above-mentioned 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted. The gap management tool 5 differs from the gap management tool 3 of the first embodiment in the width of the notch 5h and the configuration of the clarification means.

FIG. 8A shows a perspective view of the gap management tool 5, and FIG. 8B shows a developed gap management tool 95 in which the gap management tool 5 shown in FIG. 8A is developed.
The gap management tool 5 forms a substantially U-shape by the first and second horizontal plates (plates) 5c and 5d that face each other in parallel and the connection plate portion 5e that connects one end thereof.

The first and second horizontal plates 5c and 5d are formed with notches 5h and 5h having openings on the side opposite to the connection plate 5e. As shown in FIG. 9, the widths of the notches 5h and 5h are larger than and deeper than the outermost diameters of the upper nut 52 and the lower nut 60. Therefore, the upper nut 52 and the lower nut 60 can be inserted so as to straddle the notches 5h and 5h.
As described above, the first and second horizontal plates 5 c and 5 d do not necessarily need to be interposed between the upper nut 52 and the rectangular washer 4 and between the lower nut 60 and the washer 58.

  Further, as shown in FIGS. 8A and 8B, the first horizontal plate 5c is formed with bent portions 5b and 5b by bending the tip of the end opposite to the connection plate portion 5e. . The bent portions 5b and 5b are inserted into the step portions 4a and 4a of the rectangular washer 4 in the same manner as the vibration-damping stopper structure 30 of the first embodiment shown in FIG. Play a role.

At the center in the vertical direction of the connecting plate part 5e of the gap management tool 5 arranged as shown in FIG. 8A, an explicit means for clearly indicating that the position is the center in the vertical direction is provided. The gap management tool 5 is provided with two types of explicit means.
That is, the straight line (mark) 5a marked at the center in the vertical direction on the outer surface of the connection plate 5e and the recesses 5f and 5f formed at the centers in the vertical direction at both ends of the connection plate 5e and having an inclination in the opening. .

  The straight line 5a has a thickness substantially the same as the thickness of the protruding plate portion 22a and is marked on the outer surface of the connecting plate portion 5e. When adjustment is performed using the straight line 5a, the straight line 5a of the connection plate part 5e in the gap management tool 5 is visually checked from the horizontal direction so as to coincide with the protruding plate part 22a of the upper corner hardware 22. Then, the positions of the upper nut 52 and the lower nut 60 are adjusted so that the center in the vertical direction of the connecting plate portion 5e is made to coincide with the protruding plate portion 22a.

The inclination over the opening of the recess 5f is formed in a V shape over the entire ends of the connection plate 5e. Therefore, when the gap management tool 5 is pressed against the edge of the jumping plate part 22a, the gap management tool 5 slides along the inclination and the jumping plate part 22a matches the center position of the connection plate part 5e. That is, the vertical alignment can be easily performed.
These indication means clearly and tactically indicate the vertical center of the connecting plate portion 5e, that is, the vertical center between the first and second horizontal plates 5c and 5d. Based on these manifesting means, in the vibration-reducing stopper structure 41 as well as the vibration-reducing stopper structure 30 of the first embodiment, the vertical positions of the spring-out plate portion 22a and the first and second vibration-reducing washers 50, 56 are as follows. The direction gaps d ₂ and d ₂ can be adjusted.

(Modification 2 of the first embodiment)
FIGS. 10A and 10B show a gap management tool 6 that is a second modification of the first embodiment of the present invention, and FIGS. 5A and 5B show the gap management tool 3 of the first embodiment. ).
FIG. 10A shows a perspective view of the gap management tool 6, and FIG. 10B shows a developed gap management tool 96 in which the gap management tool 6 shown in FIG. 10A is developed. The gap management tool 6 differs from the gap management tool 3 of the first embodiment in that the bent plate portion 6i is provided and in the configuration of the explicit means.

The gap management tool 6 forms a substantially U-shape by the first and second horizontal plates (plates) 6c and 6d that face each other in parallel and the connection plate portion 6e that connects one end thereof.
The first and second horizontal plates 6c and 6d are formed with notches 6h and 6h having openings on the side opposite to the connection plate 6e. Since the width of the notches 6h, 6h is formed larger than the outer diameter A of the stopper bolt 32 (see FIG. 4A), the stopper bolt 32 is inserted so as to straddle the notches 6h, 6h. Can do.
The first horizontal plate 6c is formed with bent portions 6b and 6b at the tip of the end opposite to the connection plate portion 6e. The bent portions 6b and 6b are inserted into the step portions 4a and 4a of the rectangular washer 4 to prevent the clearance management tool 6 from coming off, similarly to the anti-seismic stopper structure 30 of the first embodiment shown in FIG. Play a role.

  Further, the first horizontal plate 6c is formed with a pair of bent plate portions 6i and 6i at the edge on the connection plate portion 6e side. The gap management tool 6 holds the rectangular washer 4 by the bent plate portions 6i and 6i. As a result, the rectangular washer 4 and the gap management tool 6 can be prevented from rotating relatively.

In the central part in the vertical direction of the connection plate part 6e of the gap management tool 6, an explicit means for clearly indicating that the position is the central part in the vertical direction is provided. The gap management tool 6 is provided with two types of explicit means.
That is, a straight line (a mark) 6a marked at the center in the vertical direction on the outer surface of the connection plate 6e, and a convex portion 6g formed at one of the ends in the vertical direction at the end of the connection plate 6e.

The straight line 6a has a thickness substantially the same as the thickness of the protruding plate portion 22a and is marked on the outer surface of the connecting plate portion 6e.
The width of the convex shape of the convex portion 6g (the width in the vertical direction) is substantially the same as the thickness of the protruding plate portion 22a. When the adjustment is performed using the convex portion 6g as the clarification means, the operator confirms the convex portion 6g and the jumping plate portion 22a in the gap management tool 6 with a fingertip, and the upper portion of the convex portion 6g and the jumping plate portion. The positions of the upper nut 52 and the lower nut 60 are adjusted so that the upper surface of 22a coincides, or the lower portion of the protruding portion 6g and the lower surface of the protruding plate portion 22a coincide with each other, and the vertical position of the connecting plate portion 6e. The center in the direction is made to coincide with the spring plate portion 22a.
This operation can be performed by tracing the convex portion 6g and the jumping plate portion 22a with a fingertip even in a dark place.

These indication means clearly and tactilely indicate the vertical center of the connecting plate 6e, that is, the vertical center between the first and second horizontal plates 6c and 6d. Based on these manifesting means, the vertical gaps d ₂ , d ₂ between the spring plate 22 a and the first and second anti-seismic washers 50, 56 are similar to the anti-seismic stopper structure 30 of the first embodiment. Adjustments can be made.

(Modification 3 of the first embodiment)
FIGS. 11A and 11B show a gap management tool 7 which is a modified example 3 of the first embodiment of the present invention, and FIGS. 5A and 5B show the gap management tool 3 of the first embodiment. ).
FIG. 11A shows a perspective view of the gap management tool 7, and FIG. 11B shows a developed gap management tool 97 in which the gap management tool 7 shown in FIG. 11A is developed. Compared with the gap management tool 3 of the first embodiment, the gap management tool 7 is different from the gap management tool 7 in that the bent plate portion 7i is provided and the configuration of the clarification means.

The gap management tool 7 forms a substantially U-shape by the first and second horizontal plates (plates) 7c and 7d that face each other in parallel and the connection plate portion 7e that connects one end thereof.
The first and second horizontal plates 7c and 7d are formed with notches 7h and 7h having openings on the side opposite to the connection plate 7e. Since the width of the notches 7h and 7h is formed larger than the outer diameter A of the stopper bolt 32 (see FIG. 4A), the stopper bolt 32 is inserted so as to straddle the notches 7h and 7h. Can do.

  Further, the first horizontal plate 7c is formed with a pair of bent plate portions 7i and 7i at the edge on the connection plate portion 7e side. The gap management tool 7 holds the rectangular washer 4 by the bent plate portions 7i and 7i. As a result, the rectangular washer 4 and the gap management tool 7 can be prevented from rotating relatively.

  In the central part in the vertical direction of the connection plate part 7e of the gap management tool 7, an explicit means for clearly indicating that the position is the central part in the vertical direction is provided. The gap management tool 7 of the present embodiment includes a straight line (a mark) 7a that is marked at the center in the vertical direction of the outer surface of the connection plate portion 7e as an explicit means.

  The straight line 7a is marked on the outer surface of the connecting plate portion 7e with the same thickness as the thickness of the protruding plate portion 22a. When the adjustment is performed using the straight line 7a as the explicit means, the straight line 7a of the connection plate portion 7e in the gap management tool 7 is visually observed from the horizontal direction so as to coincide with the protruding plate portion 22a of the upper corner hardware 22. While confirming, the positions of the upper nut 52 and the lower nut 60 are adjusted, and the center in the vertical direction of the connecting plate portion 7e is made to coincide with the protruding plate portion 22a.

The straight line 7a visually indicates the center in the vertical direction of the connecting plate portion 7e, that is, the center in the vertical direction between the first and second horizontal plates 7c and 7d, and the operator is based on the straight line 7a. Similarly to the anti-seismic stopper structure 30 of the first embodiment, the vertical gaps d ₂ and d ₂ between the spring plate 22a and the first and second anti-seismic washers 50 and 56 can be adjusted. .

(Second Embodiment)
In the first embodiment, as described with reference to FIG. 7C, the upper nuts 52, 52 constitute a double nut mechanism on the upper side, and the lower nut 60 on the lower side firmly tightens and loosens. The configuration to prevent is shown.

  However, when a double nut mechanism is employed, it is necessary to tighten the upper nuts 52 and 52 using a spanner or the like. Similarly, it is necessary to use a fastener such as a spanner for fastening the lower nut 60, and the work becomes difficult in a narrow place such as near the wall.

Therefore, by applying the nut 53 with rubber described below, it is possible to configure the anti-seismic stopper structure 31 that prevents loosening by hand tightening.
FIG. 12 shows the configuration of the nut 53 with rubber. The nut 53 with rubber includes a metal ring 53a provided with a screw hole, and a rubber plate 53b attached to at least one surface of the ring 53a with an adhesive or the like.
Further, in the center of the rubber plate 53b has a through hole 53c, the diameter R ₂ of the through hole 53c is formed smaller than the crest diameter R ₁ of the screw holes of the ring 53a.

Diameter R ₂ of the through hole 53c, by being smaller than the diameter R ₁ of the screw holes provided in the ring 53a, the attachment of the rubber nut 53 on the stopper bolt 32, the through-hole of the rubber plate 53b The periphery of 53c comes into contact with the stopper bolt 32, and the rubber plate 53b can hold the stopper bolt 32 so as to be tightened from the periphery.
Therefore, the rubber nut 53 does not move from the attached position due to vibration or the like.

Further, when the stopper bolt 32 is screwed in the direction of the arrow K in FIG. 12, the rubber plate 53b is deformed so as to escape in the screwing direction, so that it is not necessary to use a fastening member such as a spanner. It can be inserted by turning.
However, once the stopper bolt 32 inserted into the rubber nut 53 is to be screwed out in the direction of arrow J in FIG. 12, the rubber plate 53b is deformed in the screwing direction, and the thread of the ring 53a and the stopper bolt 32 are deformed. The rubber nut 53 cannot be easily turned with respect to the stopper bolt 32. That is, it is possible to obtain the same effect as that provided with the locking in the direction.

FIG. 13 shows an anti-seismic stopper structure 31 to which the nuts 53, 53 with rubber are applied.
This configuration corresponds to the vibration damping stopper structure 30 shown in FIG. 4A, and is provided with rubber so that the gap management tool 3 is sandwiched in place of the upper nuts 52, 52 and the lower nut 60 of the vibration damping stopper structure 30. Nuts 53 and 53 are employed.

The nut 53 with rubber installed below the gap management tool 3 is used with the rubber plate 53b facing downward. By installing in this way, the rubber nut 53 can be easily moved upward by hand, but it is difficult to move downward, and it does not loosen downward even when subjected to vibration.
On the other hand, the nut 53 with rubber installed above the gap management tool 3 is used with the rubber plate 53b facing upward, and can be moved by turning it downward, but it is difficult to move upward, such as vibration. Even if it is applied, it will not loosen upward.

  Therefore, by using these nuts 53 and 53 with rubber, in the installation process of the anti-vibration stopper structure 31, not only can the construction work be performed easily by hand even in a narrow place such as near the wall, vibrations The anti-seismic stopper structure 31 that does not loosen sometimes can be formed.

(Modification of the second embodiment)
In addition, by using the wedge nut 54 described below, it is possible to configure the seismic attenuation stopper structure 33 that can be constructed without using a fastening tool such as a spanner even in a narrow space such as near a wall.
As shown in FIG. 14, the wedge nut 54 includes a nut member 55 and a wedge member 57. The nut member 55 is a cylindrical nut, and an internal thread corresponding to the stopper bolt 32 is formed on the inner diameter surface thereof.
A part of the cylindrical shape of the nut member 55 is provided with a dividing portion 55b. Further, a notch 55a is formed on the side of the nut member 55 opposite to the dividing portion 55b.

The wedge member 57 is inserted into the dividing portion 55b, and thereby the inner diameter of the nut member 55 is widened around the notch 55a. Further, by pulling out the wedge member 57, the stress of the nut member 55 is released, the dividing portion 55b is closed, and the inner diameter is narrowed.
By inserting the wedge member 57, the inner diameter of the nut member 55 can be expanded by a difference between the height of the valley and the peak of the female thread formed on the inner diameter. Therefore, by inserting the wedge nut 54 into the stopper bolt 32 with the wedge member 57 inserted, the male screw of the stopper bolt 32 and the female screw of the nut member 55 are not engaged. That is, the wedge nut 54 can be inserted through the stopper bolt (without turning the screw) from above.

FIG. 15 shows an anti-seismic stopper structure 33 to which the wedge nuts 54 and 54 are applied.
The said structure respond | corresponds to the anti-seismic stopper structure 30 shown to Fig.4 (a), and with the anti-seismic stopper structure 30, instead of the upper nuts 52 and 52 and the lower nut 60, the clearance gap management tool 3 is inserted | pinched, Wedge nuts 54 and 54 are attached. In this state, by pulling out the wedge member 57, the inner diameter of the nut member 55 is reduced, the male screw of the stopper bolt 32 and the female screw of the nut member 55 are engaged, and a tightening force is applied to the stopper bolt 32. That is, the wedge member 57 is firmly fixed to the stopper bolt 32.
Since the wedge member 57 is firmly fixed by applying a tightening force to the stopper bolt 32, the wedge member 57 is not easily loosened even if vibration is applied.

  Therefore, by using these wedge nuts 54, 54, in the installation process of the anti-seismic stopper structure 33, it is possible not only to easily perform construction work by hand even in a narrow place such as near a wall, but also during vibration. An anti-seismic stopper structure 33 that does not loosen can be formed.

  Although various embodiments of the present invention have been described above, each configuration in each embodiment and combinations thereof are examples, and addition, omission, replacement, and configuration of configurations are within the scope not departing from the spirit of the present invention. And other changes are possible. Further, the present invention is not limited by the embodiment.

DESCRIPTION OF SYMBOLS 1,100,110 ... Vibration-isolation stand 3, 5, 6, 7 ... Gap management tool 3a, 5a, 6a, 7a ... Straight line (mark)
3b, 5b, 6b ... bent portions 3c, 5c, 6c, 7c ... first horizontal plate (plate)
3d, 5d, 6d, 7d ... 2nd horizontal plate (plate)
3e, 5e, 6e, 7e ... connecting plate portion 3f, 5f ... concave portion 3g, 6g ... convex portion 3h, 5h, 6h, 7h ... notch portion 4 ... rectangular washer 4a ... stepped portion 6i, 7i ... bent plate portion 12, 102, 112, 212 ... Upper frame 14, 104, 114, 214 ... Lower frame 16, 103, 113 ... Anti-vibration members 18, 101, 111 ... Floor slabs 20a, 20b, 20c, 20d ... Upper frame members 22a, 28a ... Spring plate portions 29a, 29b, 29c, 29d ... Lower frame members 30, 31, 33, 41, 90, 290 ... Anti-vibration stopper structures 32, 121, 232 ... Stopper bolts 34, 35, 53c, 116a, 234 ... Penetrating Holes 38, 238... Seismic reduction elastic tubes 50, 250... First vibration washer 52, 252... Upper nut 53... Nut with rubber 53a. Rust nut 55 ... Nut member 55a ... Notch 55b ... Dividing part 56, 256 ... Second vibration reducing washer 57 ... Wedge member 58 ... Washer 60, 260 ... Lower nut 66, 266 ... Fixed nuts 91, 291 ... Equipment 93, 95 , 96, 97... Deployment gap management tool 105... L-shaped earthquake-resistant stopper bracket 120 .. Earthquake-resistant stopper structure 248... First washer 258... Second washer A, B .. Outer diameters D, E, d ₁ , d _{2 1} , e ₂ ... clearances R ₁ , R ₂ ... diameter

Claims (6)

Provided in a lower frame, a vibration isolation member installed on the lower frame, an upper frame placed on the vibration isolation member, and an anti-vibration stopper structure mounted between the lower frame and the upper frame A gap management tool,
A protruding plate part extending in a lateral direction from either one of the upper frame or the lower frame and having a through hole formed therein,
One end of the upper frame or the lower frame is fixed to the other, and the other end is inserted into the through hole.
A nut screwed into the stopper bolt and arranged up and down via the spring plate part;
In the anti-seismic stopper structure comprising washers inserted through the stopper bolts and interposed between the through holes and the upper and lower nuts, respectively,
A pair of plate notched part is disposed to face is formed,
In the plate of the pair, and a connecting plate portion connecting the opposite end to the opening side of the notch on,
The upper plate of the pair of plates is aligned with the upper surface of a washer disposed on the upper side of the jumping plate portion, and the lower plate of the pair of plates is placed on the lower side of the jumping plate portion. A gap management tool that restricts the vertical distance between the washers by being inserted so as to be along the lower surface of the washer disposed on the wall.   The clearance management tool according to claim 1, further comprising an explicit unit that is located at the center in the vertical direction between the pair of plates and that clearly indicates that the position is the center in the vertical direction between the pair of plates. .   The clearance management tool according to claim 2, wherein the indication means is a mark marked at the center in the vertical direction of the outer surface of the connection plate portion.   The clearance management tool according to claim 2 or 3, wherein the indication means is a concave portion formed at the center in the vertical direction of at least one of both side end portions of the connection plate portion and having an inclination in the opening portion. . The clearance management tool according to claim 2 or 3 , wherein the clarification means is a convex portion formed at the center in the vertical direction of at least one of both side end portions of the connection plate portion. Provided straight portion to the contour of the upper and lower washer sac Chi hand in the down Shin stopper structure,
Of the pair of plates, in the plate that contacts the washer provided with the linear portion, a bent portion is formed at the tip of the end opposite to the connection plate portion,
The clearance management tool according to any one of claims 1 to 5, wherein the bent portion is locked to a straight portion of the washer.