JP6209784B2 - Anti-vibration stopper structure and anti-vibration stand having the anti-vibration stopper structure - Google Patents

Description

  The present invention relates to an anti-vibration stopper structure and an anti-vibration frame including the anti-vibration stopper structure.

Conventionally, there are various types of anti-vibration mounts that suppress the transmission of vibrations due to the operation of equipment equipment by placing equipment such as power generation equipment or outdoor air conditioners (hereinafter referred to as “equipment equipment”). Proposed.
A general anti-vibration stand includes an upper stand for installing equipment, a lower stand to be fixed to an installation surface such as a floor slab, and a vibration isolating member interposed between the two stands. 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 isolator is provided with various stopper structures.

Patent Document 1 discloses a configuration of an anti-vibration mount 110 that includes an earthquake-resistant stopper structure 120 shown in FIG. 9A and resists vertical pulling force.
This anti-vibration gantry 110 includes an upper gantry 112 on a lower gantry 114 installed on a floor slab 111 via an anti-vibration member 113.

FIG. 9B is an enlarged view of the anti-seismic stopper structure 120 of the anti-vibration mount 110 and a part thereof is shown as a cross section.
The seismic stopper structure 120 includes a stopper bolt 121 fixed to and suspended from an upper frame 112 by nuts 130, 130. The stopper bolt 121 is inserted into a through-hole 116 a of a seismic frame 116 provided on the lower frame 114. It has a configuration.

  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, between the seismic frame 116 and the upper and lower seismic elastic members 115 and 115, certain gaps f and f are provided in the vertical direction.

In this anti-vibration mount 110, the anti-vibration function and the anti-seismic 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 at 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 f. 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, at the normal time, the upper frame 112 and the lower frame 114 are insulated by the horizontal gap e and the vertical gap f, so that the anti-vibration function can be exhibited.

JP 7-208542 A

In the earthquake-resistant stopper structure 120 of the vibration isolator 110 described in Patent Document 1, it is necessary to appropriately manage the horizontal gap e and the vertical gap f between the earthquake-resistant frame 116 and the earthquake-resistant elastic member 115.
If the horizontal gap e and the vertical gap f are too narrow, the above-described anti-vibration function cannot be sufficiently achieved. Conversely, if the horizontal gap e and the vertical gap f are too wide, Due to the large shaking at the time of the earthquake, the upper frame 112 and the lower frame 114 move relative to each other with a large amplitude, and a large impact force is generated when the earthquake-resistant frame 116 and the earthquake-resistant elastic member 115 collide. Due to this impact force, the constituent members of the earthquake-resistant stopper structure 120 may be damaged, and in some cases, the equipment installed on the upper frame 112 may be damaged.

The horizontal gap e and the vertical gap f between the earthquake-resistant frame 116 and the earthquake-resistant elastic member 115 are appropriately set depending on the weight of the equipment installed on the anti-vibration mount 110, etc. For example, it is desirable that the thickness is about 1 mm, and thus, when the anti-vibration function is performed and the anti-seismic function is performed, the impact force can be suppressed.
Since the horizontal gap e can be set appropriately by appropriately designing the dimensional accuracy and assembly accuracy of each part of the upper frame 112 and the lower frame 114, it can be appropriately managed in the assembly process at the factory prior to on-site delivery. .
However, in the earthquake-resistant stopper structure 120, the vertical gap f needs to be adjusted after the relative positions of the upper frame 112 and the lower frame 114 are determined. Since the relative positions of the upper frame 112 and the lower frame 114 depend on various factors such as the weight of the equipment installed on the anti-vibration frame 110, the position of the center of gravity, and the level of the floor slab 111, It was not possible to manage in the assembly process at the factory, and it was necessary for the installation worker to set it individually at the installation site.
Equipment equipment such as power generation equipment or outdoor air conditioners is often installed near the wall of the outdoors, etc. When arranging multiple equipment equipment, make sure that adjacent equipment equipment is as close as possible to the outdoor space. It is common to use. Therefore, since the vibration isolator 110 on which the equipment is placed is also installed near the wall or in the vicinity of other equipment, it is difficult for the operator to accurately adjust the vertical gap f. there were.

  Moreover, the anti-vibration mount 110 described in Patent Document 1 is assembled at a factory and then carried into the installation site by various transportation means. Examples of the transportation means include land transportation by truck, sea transportation by ship, air transportation by aircraft, and the like. These transportation means give various vibrations to the transportation object during transportation. Since the anti-vibration base 110 has a horizontal gap e and a vertical gap f between the earthquake-resistant frame 116 and the earthquake-resistant elastic member 115, the earthquake-resistant frame 116 and the earthquake-resistant elastic member 115 are caused by vibration during transportation. The impact acts repeatedly during Due to this impact, members constituting the earthquake-resistant stopper structure 120 may be damaged.

  The present invention has been made in view of the above points, and it is not necessary to manage the gap at the site, it is possible to manage the vertical gap in the factory assembly process, and damage due to vibration during transportation The purpose is to provide an anti-vibration stopper structure for the anti-vibration stand.

In order to solve the above-described problem, a vibration-damping stopper structure of the present invention includes a first frame, a second frame, and a vibration isolating member interposed between the first frame and any one of the first and second frames. An anti-vibration stopper structure that is installed in a vibration isolation frame that is fixed to the installation surface and has equipment installed on the other side so that the vibration of the equipment is not transmitted to the installation surface, and is attached to the first frame A stopper plate member having a horizontal plate portion extending horizontally between the first frame and the second frame, and having a through hole; and attached to the second frame and extending toward the first frame. A stopper bolt inserted into the stopper bolt, a pair of stopper nuts that are screwed into the stopper bolt, are arranged above and below the horizontal plate portion, and can be individually screwed up and down, and upper and lower portions of the stopper bolt Arranged in the pair And a pair of screw feed limiting member for limiting the maximum separation distance of the stopper nut, attached to the first frame of the stopper plate member, or to the second frame of stopper bolt fixing member provided with the stopper bolt For at least one of the attachments, the stopper plate member or the stopper bolt fixing member is provided with a plate portion having a long hole extending in the vertical direction and arranged in the longitudinal direction in the same direction, and this plate portion is provided on the side surface of the gantry. On the other hand, it is attached so as to be adjustable in height by bolting through the elongated hole .

In the vibration damping stopper structure of the present invention, a horizontal gap is formed between the through hole and the stopper bolt by a structure in which the stopper bolt is inserted into the through hole provided in the horizontal plate portion of the stopper plate member. Moreover, the stopper nut arrange | positioned at the upper and lower sides of a horizontal board part can be screwed, and the clearance gap of a perpendicular direction can be provided between a horizontal board part and a stopper nut by screwing. By providing gaps in the horizontal and vertical directions, the anti-vibration function is not hindered, and when an earthquake or the like occurs and a large vibration is input to the anti-vibration mount, The stopper bolt interferes, and in the vertical direction, the horizontal plate portion and the stopper nut interfere with each other so that the first frame and the second frame do not move relative to each other beyond the vertical and horizontal gaps. It is possible to prevent the device from falling.
In the vibration-damping stopper structure according to the present invention, since at least one of the attachment of the stopper plate member to the first frame and the attachment of the stopper bolt to the second frame can be adjusted, the vibration is reduced. When installing an anti-vibration mount with a stopper structure, adjust the vertical gap in advance and place the equipment on the installation site. After the distance between the first mount and the second mount is determined, reduce it. The earthquake stopper structure can be fixed to the first frame or the second frame. That is, it is not necessary to adjust the vertical gap of the vibration-damping stopper structure at the work site, and the installation work is simplified.
In addition, the vibration-damping stopper structure of the present invention has a pair of screwing limiting members that limit the maximum separation distance between the pair of stopper nuts. With the screwing restriction member, the distance between the stopper nuts can be prevented from being further separated in a state where a vertical gap between the pair of stopper nuts and the horizontal plate portion is set in advance. That is, if the vertical gap between the stopper nut and the horizontal plate portion is set and the state is such that the stopper nuts are most separated from each other, then the stopper nut is screwed and the stopper nuts are Even if they are close to each other, the gap can be set immediately after returning to the most separated state. Thereby, when transporting from the factory to the installation site, the horizontal plate portion can be clamped by the pair of stopper nuts, and the stopper bolt and the stopper plate member can be fixed. Therefore, this vibration-damping stopper structure eliminates rattling during transportation, and can prevent components from being damaged by vibration during transportation.

  Further, in the vibration-damping stopper structure, the stopper plate member includes the horizontal plate portion, and a vertical plate portion having a long hole extending in the vertical direction from the end portion of the horizontal plate portion and forming a longitudinal direction in the same direction. It is preferable that the stopper plate member is bolted to the side surface of the first mount via the long hole.

  Since the stopper plate member has a vertical plate portion having a long hole that forms a longitudinal direction in the vertical direction, the height of the stopper plate member can be increased by changing the position of fixing in the long hole with a bolt. It can be adjusted to a position of any height (stepless) within the range of the vertical length of the hole.

  The anti-seismic stopper structure has a structure in which the stopper bolt is fixed to a stopper bolt fixing member, the stopper bolt fixing member is attached to the second mount, and the stopper bolt fixing member is horizontally A stopper bolt fixing plate portion from which the stopper bolt protrudes from the extended surface, and a long hole extending from one end of the stopper bolt fixing plate portion to the opposite side of the direction in which the stopper bolt protrudes and forming a longitudinal direction in the same direction It is preferable that the stopper bolt fixing member is bolted to the side surface of the second mount via the elongated hole.

  The stopper bolt is fixed to the second mount via a stopper bolt fixing member, and the stopper bolt fixing member has a vertical plate portion having a long hole that forms a longitudinal direction in the vertical direction. The height of the stopper bolt can be adjusted to an arbitrary height position (stepless) within the range of the length of the long hole in the vertical direction by changing the position fixed by the bolt.

  In the vibration-damping stopper structure, the pair of stopper nuts preferably have a rectangular outer shape.

  By making the outer shape of the stopper nut rectangular, the stopper nut can be turned manually. Therefore, when installing a vibration isolator with a vibration-damping stopper structure on the installation site, the vertical gap can be easily determined by turning the stopper nut by hand until it contacts the pair of screwing restriction members. .

  Further, the anti-seismic stopper structure includes a pair of anti-seismic washers each composed of a damping elastic body between the pair of stopper nuts and the horizontal plate portion of the stopper plate member, and the anti-seismic washer and the horizontal It is preferable that a gap is formed between the plate portion and any one or both between the vibration reducing washer and the stopper nut.

  According to the present invention, the vibration reducing washer comprising the damping elastic body is interposed between the stopper nut and the horizontal plate portion. This prevents the stopper nut and the horizontal plate portion from directly colliding with each other and prevents the stopper nut and the horizontal plate portion from being damaged, and also absorbs energy due to vibration at the time of collision and attenuates the vibration.

  Further, the anti-seismic stopper structure is configured such that a tubular anti-seismic tube made of a damping elastic body is interposed between the inner peripheral surface of the through hole and the outer diameter portion of the stopper bolt, and the outer peripheral surface of the anti-seismic tube It is preferable that a gap is formed between any one or both of the inner periphery of the through-hole and between the inner periphery of the vibration reducing tube and the outer diameter portion of the stopper bolt.

  According to the present invention, the tubular anti-seismic tube made of the damping elastic body is interposed between the inner peripheral surface of the through hole and the outer diameter portion of the stopper bolt. This not only prevents direct collision between the inner peripheral surface of the through hole and the outer diameter portion of the stopper bolt, but also prevents damage to the through hole and the stopper bolt. Can be attenuated.

  The vibration isolator of the present invention is provided with the above-described vibration-damping stopper structure.

  According to the present invention, it is possible to manage a horizontal gap in the assembly process of a factory without the need to manage the gap on site, and to provide a vibration isolating stand that prevents damage due to vibration during transportation. Can do.

In the vibration damping stopper structure of the present invention, a horizontal gap is formed between the through hole and the stopper bolt by a structure in which the stopper bolt is inserted into the through hole provided in the horizontal plate portion of the stopper plate member. Moreover, the stopper nut arrange | positioned at the upper and lower sides of a horizontal board part can be screwed, and the clearance gap of a perpendicular direction can be provided between a horizontal board part and a stopper nut by screwing. By providing gaps in the horizontal and vertical directions, the anti-vibration function is not hindered, and when an earthquake or the like occurs and a large vibration is input to the anti-vibration mount, The stopper bolt interferes, and in the vertical direction, the horizontal plate portion and the stopper nut interfere with each other so that the first frame and the second frame do not move relative to each other beyond the vertical and horizontal gaps. It is possible to prevent the device from falling.
In the vibration-damping stopper structure according to the present invention, since at least one of the attachment of the stopper plate member to the first frame and the attachment of the stopper bolt to the second frame can be adjusted, the vibration is reduced. When installing an anti-vibration mount with a stopper structure, adjust the vertical gap in advance and place the equipment on the installation site. After the distance between the first mount and the second mount is determined, reduce it. The earthquake stopper structure can be fixed to the first frame or the second frame. That is, it is not necessary to adjust the vertical gap of the vibration-damping stopper structure at the work site, and the installation work is simplified.
In addition, the vibration-damping stopper structure of the present invention has a pair of screwing limiting members that limit the maximum separation distance between the pair of stopper nuts. With the screwing restriction member, the distance between the stopper nuts can be prevented from being further separated in a state where a vertical gap between the pair of stopper nuts and the horizontal plate portion is set in advance. That is, if the vertical gap between the stopper nut and the horizontal plate portion is set and the state is such that the stopper nuts are most separated from each other, then the stopper nut is screwed and the stopper nuts are Even if they are close to each other, the gap can be set immediately after returning to the most separated state. Thereby, when transporting from the factory to the installation site, the horizontal plate portion can be clamped by the pair of stopper nuts, and the stopper bolt and the stopper plate member can be fixed. Therefore, this vibration-damping stopper structure eliminates rattling during transportation, and can prevent components from being damaged by vibration during transportation.

It is a perspective view which shows the vibration isolator stand to which the anti-seismic stopper structure of 1st Embodiment which concerns on this invention is applied. It is a fragmentary sectional view in the front view of the preliminary | backup stopper structure with which the vibration isolator of 1st Embodiment which concerns on this invention is equipped. FIG. 3A and FIG. 3B are perspective views with different perspective directions, respectively, showing the vibration-damping stopper structure of the first embodiment according to the present invention. It is an exploded view of the anti-seismic stopper structure of 1st Embodiment which concerns on this invention. It is sectional drawing of the anti-seismic stopper structure of 1st Embodiment which concerns on this invention, Fig.5 (a) shows the example in case the stopper nut and the anti-seismic washer are adhere | attached, FIG.5 (b) An example when the stopper nut and the vibration reducing washer are not bonded is shown. It is a figure which shows the installation procedure of the anti-vibration stand which applied the anti-seismic stopper structure of 1st Embodiment which concerns on this invention, FIG. 6 (a) is the state before assembly after assembly in a factory, FIG.6 (b) is FIG. FIG. 6C shows a state after adjusting the vertical gap, after the equipment is installed. It is a perspective view which shows the modification of the anti-seismic stopper structure of 1st Embodiment which concerns on this invention. It is sectional drawing of the anti-seismic stopper structure of 2nd Embodiment which concerns on this invention. FIG. 9 (a) shows the overall structure of the vibration isolating frame and FIG. 9 (b) shows the anti-vibration stopper structure.

  Hereinafter, an anti-vibration gantry provided with an anti-seismic stopper structure according to an embodiment of the present invention 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 of a vibration isolator 1 to which a vibration reducing stopper structure 30 according to a first embodiment of the present invention is applied. The anti-vibration gantry 1 includes a second gantry (lower gantry) 14 fixed to a floor slab (installation surface) 18 of a building or the like with an anchor bolt (not shown) and the second gantry 14 with a predetermined gap therebetween. And a first gantry (upper gantry) 12 arranged to face each other.

  As shown in FIG. 1, a plurality of vibration isolation members 16 (six in the form of FIG. 1) are interposed between the first frame 12 and the second frame 14. The first frame 12 is elastically supported on the second frame 14. The anti-vibration member 16 has a spring material (not shown) inside, is disposed between the second gantry 14 and the first gantry 12, and is installed on the first gantry 12. In addition to carrying a load, it has the function of absorbing and buffering vibrations generated from equipment. In consideration of the position of the center of gravity of the equipment installed on the first frame 12, the vibration isolation member 16 is installed at a plurality of locations at appropriate positions between the second frame 14 and the first frame 12.

  As shown in FIG. 1, the first gantry 12 is a rectangular frame-like member in plan view, and spans between the four first corner members 22 arranged at the corners and the first corner members 22. Frame members 12a, 12a, 12a, 12a. The second gantry 14 has the same configuration as the first gantry 12, and the four second corner members 24 arranged at the corners and the four frame members 14 a and 14 a that bridge between the second corner members 24. , 14a, 14a.

  The first and second corner members 22 and 24 of the first frame 12 and the second frame 14 are for joining the ends of two frame members 12a and 12a (or frame members 14a and 14a) orthogonal to each other. It is formed in a substantially box shape that is open toward the outside in the horizontal direction. And each frame member 12a, 12a (or frame member 14a, 14a) is joined to the surface which faces the inner side of the horizontal direction among the side surfaces of the first and second corner members 22, 24.

Preliminary stopper structures 20 are provided at the four corners of the vibration isolator 1 and between the first and second corner members 22, 24. The preliminary stopper structure 20 connects the first gantry 12 and the second gantry 14 so as to be capable of relative movement in the vertical direction and the horizontal direction, and regulates the relative displacement of the first gantry 12 with respect to the second gantry 14. ing.
FIG. 2 shows a partial sectional view of the preliminary stopper structure 20 in a front view.
The preliminary stopper structure 20 fixes the preliminary stopper bolt 23 inserted through the through hole 22b formed in the bottom plate portion 22a of the first corner member 22 and the top stopper portion 24a of the second corner member 24. Washers 26 and 26 and nuts 25 and 25 are provided. Further, an elastic member 27 is interposed between the through hole 22 b formed in the first corner member 22 and the auxiliary stopper bolt 23.

The elastic member 27 has a cylindrical portion 27b and a flange portion 27a. The cylindrical portion 27b is interposed between the shaft portion 23b of the preliminary stopper bolt 23 and the through hole 22b. The flange portion 27 a is interposed between the head portion 23 a of the preliminary stopper bolt 23 and the bottom plate portion 22 a of the first corner member 22.
The cylindrical portion 27b is in contact with the inner peripheral surface of the through hole 22b, and is interposed between the shaft portion 23b of the auxiliary stopper bolt 23 and a horizontal gap p.
Further, the flange portion 27 a is placed on the bottom plate portion 22 a of the first corner member 22, and is interposed between the bottom surface of the head 23 a of the auxiliary stopper bolt 23 and a vertical gap q.
The elastic member 27 is formed from an elastic body such as rubber. Therefore, the relative movement between the first frame 12 and the second frame 14 eliminates the gaps p and q in the horizontal direction and the vertical direction, and absorbs an impact when the constituent members of the preliminary stopper structure 20 collide with each other. Damage to the member can be prevented.

The preliminary stopper structure 20 connects the first gantry 12 and the second gantry 14 so that they can move relative to each other, and regulates the amount of displacement when they move relative to each other in the vertical and horizontal directions.
Note that the horizontal gap p and the vertical gap q need only be wide enough to be visually confirmed at the installation site, and are preferably 3 mm to 5 mm, respectively.
Further, the preliminary stopper structure 20 is preliminarily provided for the purpose of preventing the installed equipment from toppling over when a part of constituent members of the anti-seismic stopper structure 30 described later is deformed by vibration due to a large earthquake. Is. Therefore, it is desirable to set the horizontal gap p and the vertical gap q described above to be larger than the distances h and i between components of the anti-seismic stopper structure 30 described in detail later with reference to FIG. This does not hinder the action of the vibration damping stopper structure 30.

As shown in FIG. 1, two attachment pieces 28 are provided on the two frame members 12 a and 12 a constituting the long side of the first mount 12. Each attachment piece 28 is provided with an attachment hole 29 for fixing the equipment. After the equipment is placed on the first mount 12, a bolt is inserted into the attachment hole 29 and screwed into the equipment. Thus, the equipment can be fixed.
Each frame member 12a, 14a constituting the first gantry 12 and the second gantry 14 is formed by forming a rust-proof steel or FRP material into a rectangular frame.
1 is an example, and the materials of the frame members 12a and 14a, the number of members constituting the first frame 12 and the second frame 14, and the like are fixed to the first frame 12. It is desirable to determine appropriately according to the weight of the equipment and the vibration characteristics of the equipment.

  Two anti-vibration stoppers are provided between the two frame members 12a, 12a constituting the long side of the first frame 12 and the two frame members 14a, 14a constituting the long side of the second frame 14 opposed thereto. A structure 30 is provided. That is, the first trestle 12 and the second trestle 14 are provided with four anti-vibration stopper structures 30. This anti-seismic stopper structure 30 suppresses relative movement of the first gantry 12 and the second gantry 14 with a large amplitude at the time of an earthquake, and prevents the equipment equipment from toppling over.

3A and 3B are enlarged views of the vibration damping stopper structure 30 shown in FIG. FIG. 4 shows an exploded view of the anti-seismic stopper structure 30.
As shown in FIGS. 3A and 3B and FIG. 4, the anti-seismic stopper structure 30 includes a stopper plate member 2 attached to the first mount 12, a stopper bolt fixing member 3 attached to the second mount 14, A stopper bolt 4 that is fixed to the stopper bolt fixing member 3 and protrudes vertically upward from the surface, first and second stopper nuts 5 and 6, a lock nut (screwing limiting member) 7, and a vibration reducing tube 10 And a pair of anti-seismic washers 11, 11. In the present embodiment, the pair of vibration reducing washers 11, 11 are bonded to the first or second stopper nuts 5, 6 arranged above or below each.

  FIG. 4 shows an exploded view of the vibration damping stopper structure 30. In FIG. 4, for ease of understanding, the vibration reducing washers 11, 11 are expressed separately from the first and second stopper nuts 5, 6. However, actually, the vibration reducing washer 11 positioned above the horizontal plate portion 2a of the stopper plate member 2 is bonded to the lower surface of the second stopper nut 6, and the vibration reducing washer 11 positioned below is The first stopper nut 5 is bonded to the upper surface.

As shown in FIG. 4, the stopper plate member 2 has an L-shape, and includes a vertical plate portion 2b extending in the vertical direction and a horizontal plate portion 2a extending in the horizontal direction from the lower end of the vertical plate portion 2b. Composed.
The vertical plate 2b is provided with two long holes 2c and 2c in parallel with the vertical direction as the longitudinal direction. On the other hand, on the side surface of the frame member 12a of the first mount 12, insertion holes 8C and 8C penetrating in the horizontal direction are provided.
The fixing bolts 8A and 8A that have passed through the insertion holes 8C and 8C are inserted into the long holes 2c and 2c of the vertical plate portion 2b from the inside of the first mount 12, and the fixing nuts 8B and 8B are screwed from the outside to be fastened. Thus, the stopper plate member 2 is fixed to the first mount 12.
In the long holes 2c and 2c of the vertical plate portion 2b, by changing the height to be fastened by using the fixing bolts 8A and 8A and the fixing nuts 8B and 8B, the mounting position of the stopper plate member 2 is changed in the vertical direction of the long hole 2c. The position can be adjusted to an arbitrary height (stepless) within the length range.

The horizontal plate portion 2a is provided with a through hole 2d having a diameter D penetrating in the vertical direction, and a stopper bolt 4 is inserted into the through hole 2d.
It is preferable that the insertion holes 8C and 8C provided in the first gantry 12 have a horizontally long shape in the horizontal direction. By adopting a horizontally long shape in the horizontal direction, the horizontal position to be fastened using the fixing bolts 8A and 8A and the fixing nuts 8B and 8B can be set at the time of attachment within the range of the horizontally long shape. Therefore, when there is an assembly error in the horizontal direction between the first frame 12 and the second frame 14, this error is absorbed by adjusting the horizontal position of the stopper plate member 2, and the position of the stopper bolt 4. The positions of the through holes 2d provided in the horizontal plate portion 2a can be matched.

The stopper bolt fixing member 3 includes a fastening plate portion 3b extending in the vertical direction and a stopper bolt fixing plate portion (screwing restricting member) 3a extending in the horizontal direction from the upper end of the fastening plate portion 3b. The fastening plate portion 3b is provided with fixing holes 3c and 3c, and the side surface of the frame member 14a of the second gantry 14 is provided with insertion holes 9C and 9C penetrating in the horizontal direction.
The fixing bolts 9A and 9A that have passed through the insertion holes 9C and 9C are inserted into the fixing holes 3c and 3c of the fastening plate portion 3b from the inside of the second mount 14, and the fixing nuts 9B and 9B are screwed from the outside to be fastened. Thus, the stopper bolt fixing member 3 is fixed to the second frame 14. The stopper bolt 4 is fixed to the stopper bolt fixing plate portion 3a so as to extend in the vertical direction.
The fixing method of the stopper bolt 4 in the stopper bolt fixing plate portion 3a is not particularly limited and can be fixed using a nut, but a limited space between the first frame 12 and the second frame 14 is limited. For the purpose of effective use, fixing by welding is preferably used.

The stopper bolt 4 is formed with a predetermined male screw, and the stopper bolt 4 is screwed with first and second stopper nuts 5 and 6 and a lock nut 7 formed with corresponding female screws.
The stopper bolt 4 is inserted through a through hole 2d provided in the horizontal plate portion 2a of the stopper plate member 2, and a pair of vibration reducing washers 11, 11 and a vibration reducing tube 10 are inserted.

  As shown in FIG. 5 (a), each member into which the stopper bolt 4 is screwed or inserted has a first stopper nut 5, an anti-seismic washer 11 and a reduced amount from the second frame 14 side to the first frame 12 side. The seismic tube 10, the vibration reducing washer 11, the second stopper nut 6, and the lock nut 7 are arranged in this order. The stopper bolt 4 is inserted through the horizontal plate portion 2 a of the stopper plate member 2 through the vibration reducing tube 10.

The through hole 2 d formed in the horizontal plate portion 2 a of the stopper plate member 2 has a diameter sufficiently larger than the outer diameter of the bolt portion of the stopper bolt 4. Between the through hole 2d and the outer diameter portion of the stopper bolt 4, a vibration-reducing tube 10 that is tubular and has an outer diameter d is interposed.
A gap of a distance i is secured in the horizontal direction between the outer peripheral surface of the vibration reducing tube 10 and the inner peripheral surface of the through hole 2d. The gap of the distance i is preferably about 1 mm. This distance i is set according to the magnitude of the assumed maximum seismic intensity, and is not limited to 1 mm, but may be determined according to the magnitude of the earthquake assumed in the design stage. Further, by setting the distance i to be smaller than the horizontal gap p of the preliminary stopper structure 20, the preliminary stopper structure 20 inhibits the horizontal seismic reduction action (an action to attenuate the earthquake energy). It is desirable without any.

  In the present embodiment, a gap is secured between the outer peripheral surface of the vibration reducing tube 10 and the inner peripheral surface of the through hole 2d, but the present invention is not limited to this. That is, either one or both between the outer peripheral surface of the vibration reducing tube 10 and the inner peripheral surface of the through hole 2d and between the inner peripheral surface of the vibration reducing tube 10 and the outer diameter portion of the stopper bolt 4. What is necessary is just to be formed.

  The anti-seismic tube 10 is made of a damping elastic body and collides with the inner peripheral surface of the through hole 2d when a large vibration is applied in the horizontal direction at the time of an earthquake, and is prepared for the purpose of reducing the earthquake impact and damping the earthquake energy. It has been. It is desirable that the vibration-reducing tube 10 has a two-layer structure including an inner layer having both elasticity and damping property and an outer layer having higher rigidity than the inner layer. The inner layer is formed of a material such as a damping rubber having a thickness of about 5 mm in the radial direction and a hardness of 30 or more and a dynamic viscoelastic property tan δ of 0.5 or more, or a highly-damping thermoplastic elastomer resin. Can do. The outer layer 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 of about 0.4. Specifically, a fluorine resin material such as polytetrafluoroethylene (PTFE) is preferable.

  Anti-seismic washers 11 and 11 are provided above and below the anti-seismic tube 10. The anti-seismic washer 11 is made of a damping elastic body and is provided for the purpose of colliding with the horizontal plate portion 2a when a large vibration is applied in the vertical direction during an earthquake, so as to reduce the earthquake impact and attenuate the earthquake energy. . The anti-seismic washer 11 is a washer made of a material having both elasticity and damping properties, and has an inner diameter that is larger than the outer diameter of the stopper bolt 4 and smaller than the outer diameter d of the anti-seismic pipe 10. As a material of the vibration reducing washer 11, for example, it can be formed of a material such as a damping 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 thermoplastic elastomer resin.

  The anti-seismic washers 11 and 11 disposed above and below the horizontal plate portion 2a are disposed with a gap of a distance h and h from the horizontal plate portion 2a, respectively. The gap between the distances h and h is preferably about 1 mm. The distances h and h are set according to the magnitude of the assumed maximum seismic intensity, and are not limited to 1 mm, but may be determined according to the magnitude of the earthquake assumed in the design stage. Further, by setting the distance h to be small with respect to the vertical gap q of the preliminary stopper structure 20, the preliminary stopper structure 20 inhibits the vertical vibration reduction action (action that attenuates the energy of the earthquake). It is desirable without any.

In the present embodiment, the vibration reducing washers 11 and 11 are bonded to the first stopper nut 5 and the second stopper nut 6. Thereby, the work procedure at the time of an assembly can be reduced. However, the vibration reducing washers 11 and 11 are not necessarily bonded to the first and second stopper nuts 5 and 6.
When the vibration reducing washers 11 and 11 are not bonded to the first and second stopper nuts 5 and 6, the upper vibration reducing washer 11 is placed on the vibration reducing tube 10. In this case, as shown in FIG. 5 (b), the distance h ₁ and the lower surface and the horizontal plate portion 2a of the upper GenShin washer 11, the upper GenShin washer 11 top and the second stopper nut 6 total distance _{h 2 (h 1 + h 2} ) it is sufficient that a distance h mentioned above.
That is, if the gap is formed between one or both of the vibration reducing washer 11 and the horizontal plate portion 2a and between the vibration reducing washer 11 and the first or second stopper nuts 5 and 6, good.

  The first and second stopper nuts 5, 6 are respectively screwed into the stopper bolts 4, and are arranged up and down via the horizontal plate portion 2 a and the vibration reducing washers 11, 11. The outer shape of the first and second stopper nuts 5 and 6 is preferably rectangular. Accordingly, the first and second stopper nuts 5 and 6 can be screwed and fastened by hand. However, the outer shapes of the first and second stopper nuts 5 and 6 are not particularly limited as long as they can be turned by hand.

The first stopper nut 5 disposed below is in contact with the stopper bolt fixing plate portion 3a of the stopper bolt fixing member 3 on the lower surface thereof. Moreover, the 2nd stopper nut 6 arrange | positioned upward is contacting the lock nut 7 in the upper surface.
The lock nut 7 is not particularly limited as long as it has a loosening prevention effect, and a ready-made product can be used. Moreover, you may acquire the loosening prevention effect by a double nut method using two nuts.
Further, the stopper bolt fixing plate portion 3a of the stopper bolt fixing member 3 is welded from below after the stopper bolt 4 is screwed into the screw hole to form a welded portion 3d as shown in a sectional view in FIG. By doing so, since it is fixed to the stopper bolt 4, the relative positional relationship between the stopper bolt 4 and the stopper bolt fixing plate portion 3a does not change.

Since the first and second stopper nuts 5 and 6 are screwed into the stopper bolt 4, they can be screwed on the same axis, that is, can be moved up and down. The first stopper nut 5 has a stopper bolt fixing plate portion 3a disposed below it, and the second stopper nut 6 has a lock nut 7 disposed above it, so that screwing upward or downward is restricted. Has been. That is, the separation between the first and second stopper nuts 5, 6 is limited by the stopper bolt fixing plate portion 3 a and the lock nut 7. From this function, the stopper bolt fixing plate portion 3a and the lock nut 7 serve as a pair of screwing restriction members that restrict the vertical movement.
In the present embodiment, the stopper bolt fixing plate portion 3a of the stopper bolt fixing member 3 is provided with a function as a screwing restriction member. However, a lock nut similar to the lock nut 7 provided above the second stopper nut 6 is provided below the first stopper nut 5, and the screwing of the first stopper nut 5 below is restricted by the lock nut. It is good also as a structure.

Next, based on FIGS. 6A, 6B, and 6C, an example of the installation procedure of the vibration isolator 1 having the anti-vibration stopper structure 30 will be described.
FIG. 6A shows the anti-seismic stopper structure 30 at the shipping stage from the factory. The assembly process in the factory up to the state shown in FIG. 6A will be described below.

First, the vibration isolation member 16 (see FIG. 1) is installed on the second frame (lower frame) 14, and the first frame (upper frame) 12 is further installed on the vibration isolation member. In this step, the vibration isolation member 16 and the preliminary stopper structure 20 are attached at the four corners of the vibration isolation frame 1 and between the first and second corner members 22 and 24 (see FIG. 1).
Next, the stopper bolt fixing member 3 to which the stopper bolt 4 is fixed is attached to the second base 14. This attachment is performed by inserting the fixing bolt 9A into the fixing hole 3c provided in the fastening plate portion 3b of the stopper bolt fixing member 3 and fastening the fixing nut 9B. As a result, the stopper bolt 4 is raised.
Next, the first stopper nut 5 is screwed into the stopper bolt 4, and the vibration reducing washer 11 and the vibration reducing pipe 10 are sequentially inserted.
Next, the through-hole 2 d provided in the horizontal plate portion 2 a of the stopper plate member 2 is inserted into the stopper bolt 4. Since the inner diameter of the through hole 2d is larger than the outer diameter of the vibration reducing tube 10, the vibration reducing tube 10 is interposed between the outer diameter portion of the stopper bolt 4 and the inner peripheral surface of the through hole 2d.
Next, the vibration reducing washer 11 is inserted into the stopper bolt 4 and the second stopper nut 6 and the lock nut 7 are screwed.
In the present embodiment, since the vibration reducing washers 11 and 11 are bonded to the first and second stopper nuts 5 and 6, the first and second stopper nuts 5 and 6 are screwed in the above-described procedure. By doing so, the vibration reduction washer 11 is inserted at the same time.

  Next, the first and second stopper nuts 5 and 6 and the lock nut 7 are screwed to adjust the vertical position, so that the vibration reducing washer 11 is interposed between the first stopper nut 5 and the second stopper nut 6. 11, the horizontal plate portion 2 a of the stopper plate member 2 is clamped, and the distance j between the upper surface of the stopper bolt fixing plate portion 3 a of the stopper bolt fixing member 3 and the lower surface of the first stopper nut 5 and the first 2 Adjust the distance j between the upper surface of the stopper nut 6 and the lower surface of the lock nut 7. By this operation, the vertical distance k between the pair of screwing restriction members (that is, the stopper bolt fixing plate portion 3a of the stopper bolt fixing member 3 and the lock nut 7) is uniquely determined. That is, the vertical distance k between the pair of screwing restriction members is the distance j between the upper surface of the stopper bolt fixing plate portion 3a and the lower surface of the first stopper nut 5, and the upper surface of the stopper bolt fixing plate portion 3a and the first distance. This is the total of the distance j from the lower surface of the stopper nut 5 and the thicknesses of the first stopper nut 5, the second stopper nut 6, the pair of vibration reducing washers 11, 11, and the horizontal plate portion 2 a of the stopper plate member 2.

More specifically, first, a sufficient gap is provided between the upper surface of the stopper bolt fixing plate portion 3a and the lower surface of the first stopper nut 5, and the distance j, which is the size of the target gap, is set in the gap. A spacer having the same thickness is inserted, the first stopper nut 5 is screwed downward, the distance between the upper surface of the stopper bolt fixing plate portion 3a and the lower surface of the first stopper nut 5 is set to the distance j, and then the spacer is removed. .
Further, the second stopper nut 6 is screwed downward, and the horizontal plate portion 2 a of the stopper plate member 2 is sandwiched between the first stopper nut 5 and the second stopper nut 6 via the vibration reducing washers 11, 11. State.
Next, a sufficient gap is provided between the upper surface of the second stopper nut 6 and the lower surface of the lock nut 7, and the spacer (the thickness is the same as the distance j which is the target gap size) is provided in the gap. Is inserted, the lock nut 7 is transferred downward, the gap between the upper surface of the second stopper nut 6 and the lower surface of the lock nut 7 is set to the distance j, and then the spacer is removed.
Since the outer shape of the first and second stopper nuts 5 and 6 is rectangular, the first and second stopper nuts 5 and 6 can be screwed and fastened by hand.

  In this state, the stopper plate member 2 is attached to the first mount 12 using the fixing bolt 8A and the fixing nut 8B. The stopper plate member 2 is attached to the first mount 12 by inserting a fixing bolt 8A into a long hole 2c provided in the vertical plate portion 2b of the stopper plate member 2 and fastening with a fixing nut 8B. At this time, the position of the long hole 2c is set so that the fixing bolt 8A is inserted into the upper part of the long hole 2c and fastened by the fixing nut 8B.

By going through these steps, the anti-seismic stopper structure 30 is in the state shown in FIG. In the state shown in FIG. 6A, the horizontal plate portion 2a is sandwiched between the first and second stopper nuts 5 and 6 via the pair of vibration reducing washers 11 and 11 from the vertical direction.
The anti-seismic stopper structure 30 has no vertical gap. The horizontal gap is formed between the through hole 2d of the horizontal plate portion 2a and the vibration reducing tube 10, but the first and second stopper nuts 5 and 6 are a pair of vibration reducing washers 11. , 11 and the horizontal plate portion 2a is sandwiched between the pair of anti-vibration washers 11, 11 and the horizontal plate portion 2a, so that the horizontal gap does not rattle. .

  The vibration isolator 1 in the state shown in FIG. 6A is transported to the site by transport means such as truck transport. Since the first gantry 12 and the second gantry 14 are fixed by the anti-seismic stopper structure 30, even if vibration is applied during transportation, the first gantry 12 and the second gantry 14 are relative to each other. Therefore, since each part does not collide in the anti-seismic stopper structure 30, damage to the constituent members can be prevented.

The anti-vibration mount 1 in the state shown in FIG. 6 (a) conveyed to the installation site is installed according to the procedure shown in FIGS. 6 (b) and 6 (c).
First, the second mount 14 is fixed to the floor slab 18 at the installation site.
Next, as shown in FIG. 6B, the fixing bolt 8A and the fixing nut 8B that fix the first mount 12 and the stopper plate member 2 are loosened. Even if the fixing bolt 8A and the fixing nut 8B are loosened, the horizontal plate portion 2a is sandwiched by the first and second stopper nuts 5 and 6 via the pair of vibration reducing washers 11 and 11, so that the stopper plate member 2 is Is held on the spot.
Next, the equipment 13 is placed on the first mount 12 and fixed. Due to the weight of the equipment 13, the vibration isolation member 16 (see FIG. 1) interposed between the first frame 12 and the second frame 14 sinks, and the first frame 12 and the second frame 14 come close to each other. Along with this, the fixing bolt 8A inserted through the upper part of the long hole 2c provided in the vertical plate part 2b of the stopper plate member 2 moves downward along the long hole 2c.
In addition, since the amount of sinking of the 1st mount 12 is decided by the weight of the equipment 13 mounted on the 1st mount 12, and the elastic force of the vibration isolator 16 (refer FIG. 1), the length of the vertical direction of the long hole 2c Is set to a sufficient length according to the weight of the equipment 13 and the resilience of the vibration isolation member 16.

Next, the stopper plate member 2 is fixed to the first mount 12 by fastening the fixing bolt 8A and the fixing nut 8B.
Further, as shown in FIG. 6C, the first stopper nut 5 is screwed downward by hand and is brought into contact with the upper surface of the stopper bolt fixing plate portion 3 a of the stopper bolt fixing member 3. Similarly, the second stopper nut 6 is screwed upward by hand and brought into contact with the lower surface of the lock nut 7.
Thereby, the clearance gap of distance h and h is formed in the horizontal board part 2a of the stopper board member 2, and a pair of anti-seismic washers 11 and 11 arrange | positioned up and down.
The gaps h and h have the same values as the gaps j and j described with reference to FIG. That is, by setting the distances j and j accurately at the factory, the gaps of the predetermined distances h and h can be easily set without using a dedicated jig or the like at the site.
Through the above steps, the installation of the vibration isolator 1 including the vibration-damping stopper structure 30 of the first embodiment is completed.

The anti-seismic stopper structure 30 of the present embodiment has a structure in which the stopper bolt 4 is inserted into the through hole 2d provided in the horizontal plate portion 2a of the stopper plate member 2 so that the horizontal direction between the through hole 2d and the stopper bolt 4 A gap of distance i, i is formed.
Moreover, the 1st and 2nd stopper nuts 5 and 6 arrange | positioned at the upper and lower sides of the horizontal board part 2a can be screwed, and between the horizontal board part 2a and the 1st and 2nd stopper nuts 5 and 6 by screwing. It is possible to provide gaps with distances h and h.
By providing the gaps i and e in the horizontal direction and the vertical direction, the anti-vibration function for preventing the vibration of the equipment from being transmitted to the installation surface by the anti-vibration member 16 (see FIG. 1) is not hindered. Further, when an earthquake or the like occurs and a large vibration is input to the vibration isolator 1, the through hole 2 d of the stopper plate member 2 and the stopper bolt 4 interfere in the horizontal direction, and the stopper plate member in the vertical direction. The two horizontal plate portions 2a and the first and stopper nuts 5 and 6 interfere with each other so that the first frame 12 and the second frame 14 can move relative to each other over the gaps i and e provided vertically and horizontally. In addition, the equipment device 13 can be prevented from falling.

Further, in the anti-seismic stopper structure 30 of the present embodiment, the stopper plate member 2 is attached to the first frame 12 with the fixing bolt 8A and the fixing nut 8B in the elongated hole 2c provided in the stopper plate member 2 extending in the vertical direction. It is done by bolting using Therefore, the height of the stopper plate member 2 can be easily changed by changing the fastening position of the fixing bolt 8A and the fixing nut 8B in the long hole 2c.
Thereby, after the equipment 13 is placed and the distance between the first gantry 12 and the second gantry 14 is determined, the stopper plate member 2 of the anti-seismic stopper structure 30 can be fixed to the first gantry 12. That is, since the vertical gap can be adjusted in advance as the distances h and h, the vertical gap management at the installation site is unnecessary, and the installation work is simplified.

  Further, in the vibration-damping stopper structure 30 of the present embodiment, the lock nut 7 and the stopper bolt fixing plate portion 3a of the stopper bolt fixing member 3 are used as a pair of screwing restriction members, and the maximum of the first and second stopper nuts 5 and 6 is used. Limit the separation distance. Accordingly, if the vertical gap between the first and second stopper nuts 5 and 6 and the horizontal plate portion 2a is set in advance in the assembly stage at the factory, the first and second stopper nuts 5 are set after the gap is set. , 6 even when screwed, the first stopper nut 5 is brought into contact with the upper surface of the stopper bolt fixing plate portion 3a, and the second stopper nut 6 is brought into contact with the lower surface of the lock nut 7 so that the first and second stopper nuts are brought into contact. As soon as 5 and 6 are returned to the most separated state, the gap can be set. Therefore, when transporting from the factory to the installation site, the horizontal plate portion 2a can be clamped by the first and second stopper nuts 5 and 6, and the stopper bolt 4 and the stopper plate member 2 can be fixed. As a result, the anti-seismic stopper structure 30 can be prevented from rattling during transportation and the components can be prevented from being damaged by vibration during transportation.

  Further, the vibration-reducing stopper structure 30 of the present embodiment includes a pair of vibration-reducing washers 11 each composed of a damping elastic body between the first and second stopper nuts 5 and 6 and the horizontal plate portion 2a of the stopper plate member 2. 11 is interposed. This not only prevents the first and second stopper nuts 5 and 6 and the horizontal plate portion 2a from directly colliding with each other, but also prevents the first and second stopper nuts 5 and 6 and the horizontal plate portion 2a from being damaged. In the event of a collision, the energy from vibration can be absorbed and the vibration can be attenuated.

  Further, in the vibration damping stopper structure 30 of the present embodiment, a tubular vibration damping tube 10 made of a damping elastic body is interposed between the inner peripheral surface of the through hole 2 d of the stopper plate member 2 and the outer diameter portion of the stopper bolt 4. It is disguised. As a result, the inner peripheral surface of the through hole 2d and the outer diameter portion of the stopper bolt 4 are prevented from directly colliding, and the through hole 2d and the stopper bolt 4 are not prevented from being damaged. Can absorb and damp vibrations.

  Further, the anti-seismic stopper structure 30 of the present embodiment has a structure that is attached to the side surfaces of the first and second mounts 12 and 14 of the vibration isolation mount 1 by fixing bolts 8A and 9A and fixing nuts 8B and 9B. Therefore, the first and second mounts 12 and 14 can be easily installed by providing through holes through which the fixing bolts 8A and 9A are inserted. That is, a vibration-proof stand that does not have a vibration-damping stopper structure is provided with a through-hole for mounting (corresponding to the insertion holes 8C and 9C), and the vibration-damping stopper structure 30 of this embodiment is further attached. Can be easily provided with a vibration reduction function. Therefore, it can be retrofitted to the installed vibration isolator.

The anti-seismic stopper structure 30 of the present embodiment has the first frame 12 as an upper frame, the stopper plate member 2 fixed to the upper frame, the second frame 14 as a lower frame, and the stopper bolt 4 fixed to the lower frame. Has a structure.
However, the vibration isolator to which the present invention is applied is not limited to this. That is, a structure in which the first frame 12 is a lower frame, the stopper plate member 2 is fixed to the lower frame, the second frame 14 is an upper frame, and the stopper bolt 4 is fixed to the upper frame. In this case, the 1st mount 12 is fixed to the floor slab (installation surface) 18, the equipment 13 is mounted on a 2nd mount, and the vertical positional relationship of the stopper bolt 4 and the stopper board member 2 is reversed. This structure will be described in detail as a second embodiment described later.

Further, the anti-seismic stopper structure 30 of the present embodiment is configured such that the height of the stopper plate member 2 can be adjusted by a long hole 2 c provided in the vertical plate portion 2 b of the stopper plate member 2. 4 does not have a structure for adjusting the height.
However, in the vibration-damping stopper structure of the present invention, it is sufficient that at least one of the stopper plate member 2 and the stopper bolt 4 can be adjusted in height. That is, even if the height of the stopper plate member 2 is not adjustable, it is sufficient if the height of the stopper bolt 4 can be adjusted. Such a structure will be described later in a second embodiment.

(Modification)
FIG. 7 shows a cross-sectional view of an anti-seismic stopper structure 35 that is a modification of the first embodiment. Hereinafter, the anti-seismic stopper structure 35 will be described with reference to FIG. The anti-seismic stopper structure 35, which is a modified example of the present embodiment, differs from the anti-seismic stopper structure 31 in the attachment structure of the stopper plate member 2 to the first mount 12.
In addition, about the component of the same aspect as the above-mentioned 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

In the anti-seismic stopper structure 35, a mounting plate piece 36 is joined to the side surface of the frame member 12a constituting the first mount 12 by welding, and is fixed so as to hang down from the side surface of the frame member 12a via a welded portion 37. Yes. Two holes through which the fixing bolts 38A and 38A are inserted are provided below the first mount 12 in the mounting plate piece 36. The fixing bolts 38A and 38A inserted through the holes are used as the stopper plate member 2. The stopper plate member 2 is fixed to the first mount 12 by inserting the fastening nuts 38B and 38B and fastening them through the long holes 2c and 2c of the vertical plate portion 2b.
Also in this modification, as in the first embodiment, by changing the height of fastening in the elongated holes 2c, 2c of the vertical plate portion 2b using the fixing bolts 38A, 38A and the fixing nuts 38B, 38B, the stopper The mounting position of the plate member 2 can be adjusted to an arbitrary height position (stepless) within the range of the vertical length of the long hole 2c.
Moreover, even if it is a case where a hole cannot be formed in the frame member 12a by joining the attachment plate piece 36 to the side surface of the frame member 12a by welding as in this modification, the vibration-damping stopper of the present invention. Structure can be applied.

In this variation, the mounting plate piece 36 is joined to the frame member 12a by welding, but the joining method of the mounting plate piece 36 is not limited to this. For example, the frame member 12a and the bolt It may be fixed.
Also in the anti-seismic stopper structure 35 which is a modification of this embodiment, the same effect as the anti-seismic stopper structure 31 of the above-mentioned first embodiment can be obtained.

(Second Embodiment)
FIG. 8 shows a cross-sectional view of a vibration reducing stopper structure 31 that is the second embodiment of the present invention. Hereinafter, the anti-seismic stopper structure 31 will be described with reference to FIG. FIG. 8 corresponds to a cross-sectional view of the anti-seismic stopper structure 30 of the first embodiment shown as FIG. 5A, and the same reference numerals are given to the same components as those of the first embodiment. A description thereof will be omitted.

  Compared with the anti-seismic stopper structure 30 of the first embodiment, the anti-seismic stopper structure 31 of the second embodiment has a first gantry 42, a second gantry 44, a stopper plate member 32 fixed to them, and a stopper bolt 34. The positional relationship in the vertical direction is different. Further, the fixing method of the stopper plate member 32 and the stopper bolt 34 to the first frame 42 and the second frame 44 is different.

That is, as shown in FIG. 8, in the anti-seismic stopper structure 31, the first frame 42 is configured as a lower frame and is fixed to the floor slab 18. Moreover, the 2nd mount frame 44 is comprised as an upper mount frame, and equipment (illustration omitted) is mounted.
The stopper plate member 32 fixed to the first mount 42 includes a vertical plate portion 32b that is fixed to the side surface of the first mount 42 and extends in the vertical direction, and a horizontal plate portion 32a that extends in the horizontal direction from the upper end of the vertical plate portion 32b. Consists of
The horizontal flat plate portion 32a is provided with a through hole 32d penetrating in the vertical direction, and a stopper bolt 34 is inserted into the through hole 32d.
The vertical plate portion 32b is formed with a fixing hole 32c for fixing to the second mount 44 by the fixing bolt 9A and the fixing nut 9B. In the present embodiment, the fixing hole 32c is not a long hole, that is, the height of the stopper plate member 32 cannot be adjusted.

Further, the stopper bolt 34 fixed to the second mount 44 via the stopper bolt fixing member 33 has a structure that hangs downward from above. The stopper bolt fixing member 33 has an L shape, and includes a fastening plate portion 33b extending in the vertical direction and a stopper bolt fixing plate portion 33a extending in the horizontal direction from the lower end of the fastening plate portion 33b. The stopper bolt 34 is fixed to the stopper bolt fixing plate portion 33a so as to protrude in the vertical direction from the surface.
The fastening plate portion 33b is provided with a long hole 33c whose longitudinal direction is the longitudinal direction. A fixing bolt 8A and a fixing nut 8B that are inserted into the long hole 33c from the inside of the second mount 44 are used. It is fixed to the two mounts 44. In the long hole 33c, by changing the position to be fastened by the fixing bolt 8A and the fixing nut 8B, the mounting height of the stopper bolt fixing member 33 can be set at an arbitrary height within the range of the vertical length of the long hole 33c. (Stepless) can be adjusted.

The anti-seismic stopper structure 31 of the second embodiment can be installed by the same method as the anti-seismic stopper structure 30 of the first embodiment.
First, in a factory before shipment, the vibration isolation member 16 (see FIG. 1) and the second stand (upper stand) 44 are installed on the first stand (lower stand) 42, and the preliminary stopper structure 20 (see FIG. 1). Install.
Next, the stopper plate member 32 is fixed to the first mount 42 using the fixing bolt 9A and the fixing nut 9B.
Next, the first stopper nut 5 is screwed in advance, and the stopper bolt 34 into which the vibration reducing washer 11 is inserted is inserted into the through hole 32 d provided in the horizontal plate portion 32 a of the stopper plate member 32. Further, the vibration reducing pipe 10 and the vibration reducing washer 11 are inserted into the stopper bolt 34 from below, and the second stopper nut 6 and the lock nut 7 are screwed into the stopper bolt 34.
Next, similarly to the first embodiment described above, the first and second stopper nuts 5 and 6 and the lock nut 7 are screwed to reduce the distance between the first stopper nut 5 and the second stopper nut 6. The horizontal plate portion 32 a of the stopper plate member 32 is sandwiched via the seismic washers 11 and 11, and the lower surface of the stopper bolt fixing plate portion 33 a of the stopper bolt fixing member 33 and the upper surface of the first stopper nut 5 are The distance and the distance between the lower surface of the second stopper nut 6 and the upper surface of the lock nut 7 are adjusted.

In this state, the stopper bolt fixing member 33 is attached to the second mount 44 using the fixing bolt 8A and the fixing nut 8B. The stopper bolt fixing member 33 is attached to the second base 44 by inserting the fixing bolt 8A into the long hole 33c provided in the fastening plate portion 33b of the stopper bolt fixing member 33 and fastening with the fixing nut 8B. .
In this state, after being transported to the installation site and fixing the first mount 42 to the floor slab 18, the fixing bolt 8A and the fixing nut 8B are loosened, equipment equipment (not shown) is placed, and the fixing bolt 8A and Fasten the fixing nut 8B.
Further, as shown in FIG. 8, the first stopper nut 5 is screwed and brought into contact with the upper surface of the stopper bolt fixing plate portion 33a of the stopper bolt fixing member 33, the second stopper nut 6 is screwed, and the lock nut 7 Installation is completed by contacting the lower surface of the.
By installing as described above, the anti-seismic stopper structure 31 of the second embodiment can achieve the same effects as the anti-vibration stopper structure 30 of the first embodiment.

As illustrated on the basis of the first embodiment and the second embodiment, the anti-seismic stopper structures 30 and 31 of the present invention have at least one of the stopper plate members 2 and 32 or the stopper bolts 4 and 34 having a height. It only needs to be adjustable.
In addition, any of the first frame 12 and 42 and the second frame 14 and 44 may be used as the upper frame and the lower frame. In other words, the vertical positional relationship between the stopper bolts 4 and 34 and the stopper plate members 2 and 32 is any. It is good also as upper part.

  As described above, the first and second embodiments of the present invention have been described. Substitutions and other changes are possible. The present invention is not limited by this embodiment.

DESCRIPTION OF SYMBOLS 1,110 ... Vibration isolator 2, 32 ... Stopper plate member 2a, 32a ... Horizontal plate part 2b, 32b ... Vertical plate part 2c, 33c ... Long hole 2d, 32d, 116a ... Through-hole 3, 33 ... Stopper bolt fixing member 3a, 33a ... stopper bolt fixing plate portion (screw feed restricting member)
3b, 33b ... Fastening plate portions 3c, 32c ... Fixing holes 3d, 37 ... Welded portions 4, 34, 121 ... Stopper bolt 5 ... First stopper nut 6 ... Second stopper nut 7 ... Lock nut (screwing limiting member)
8A, 9A, 38A ... Fixing bolts 8B, 9B, 38C ... Fixing nuts 8C, 9C ... Insertion hole 10 ... Anti-seismic tube 11 ... Anti-seismic washer 12 ... First stand (upper stand)
12a, 14a ... Frame member 13 ... Equipment 14 ... Second frame (lower frame)
16, 113 ... Anti-vibration members 18, 111 ... Floor slab (installation surface)
DESCRIPTION OF SYMBOLS 20 ... Preliminary stopper structure 22 ... 1st corner member 23 ... Preliminary stopper bolt 24 ... 2nd corner member 25 ... Nut 26 ... Washer 27 ... Elastic member 27a ... Flange part 27b ... Cylindrical part 30, 31, 35 ... Anti-vibration stopper structure 36: Mounting plate piece 42: First frame (lower frame)
44 ... Second stand (upper stand)
112 ... Upper frame 114 ... Lower frame 115 ... Elastic member 116 for earthquake resistance ... Earthquake resistant frame 120 ... Earthquake resistant stopper structure d ... External shape D ... Diameter e, f, p, q ... Gap h, i, j, k ... Distance

Claims (7)

A first frame, a second frame, and a vibration isolating member interposed between them; either one of the first frame and the second frame is fixed to the installation surface; An anti-vibration stopper structure to be installed in the anti-vibration mount to prevent the vibration of the equipment from being transmitted to the installation surface,
A stopper plate member attached to the first frame and having a horizontal plate portion extending horizontally between the first frame and the second frame and having a through hole;
A stopper bolt attached to the second frame, extending toward the first frame and inserted through the through hole;
A pair of stopper nuts screwed into the stopper bolts, arranged above and below the horizontal plate portion, and individually screwed up and down;
A pair of screwing restriction members disposed at the upper and lower parts of the stopper bolt, and restricting the maximum separation distance between the pair of stopper nuts;
At least one of the attachment of the stopper plate member to the first frame or the attachment of the stopper bolt fixing member provided with the stopper bolt to the second frame ,
The stopper plate member or the stopper bolt fixing member is provided with a plate portion having a long hole extending in the vertical direction and having the longitudinal direction arranged in the same direction, and the plate portion is bolted to the side surface of the mount via the long hole. An anti-seismic stopper structure, characterized in that the height can be adjusted by a stopper. The stopper plate member comprises the horizontal plate portion and a vertical plate portion having a long hole extending in the vertical direction from the end portion of the horizontal plate portion and forming a longitudinal direction in the same direction,
2. The vibration damping stopper structure according to claim 1, wherein the stopper plate member is bolted to a side surface of the first mount through the elongated hole. The stopper bolt is fixed to a stopper bolt fixing member, and the stopper bolt fixing member is attached to the second mount;
A stopper bolt fixing plate portion in which the stopper bolt fixing member extends horizontally and projects the stopper bolt from a surface;
From one end of the stopper bolt fixing plate portion, it comprises a fastening plate portion provided with a long hole extending in the opposite direction to the protruding direction of the stopper bolt and forming a longitudinal direction in the same direction,
3. The anti-seismic stopper structure according to claim 1, wherein the stopper bolt fixing member is bolted to the side surface of the second frame via the elongated hole.   The vibration reducing stopper structure according to any one of claims 1 to 3, wherein the outer shape of the pair of stopper nuts is rectangular. Between the pair of stopper nuts and the horizontal plate portion of the stopper plate member, a pair of vibration reducing washers each consisting of a damping elastic body is interposed,
The gap is formed in any one or both between the said vibration reduction washer and the said horizontal plate part, and between the said vibration reduction washer and the said stopper nut, The any one of Claims 1-4 characterized by the above-mentioned. The anti-seismic stopper structure according to one item. Between the inner peripheral surface of the through hole and the outer diameter portion of the stopper bolt, a tubular seismic reduction tube made of a damping elastic body is interposed,
A gap is formed between one or both of the outer peripheral surface of the vibration reducing tube and the inner peripheral surface of the through hole and between the inner peripheral surface of the vibration reducing tube and the outer diameter portion of the stopper bolt. The anti-seismic stopper structure according to claim 1, wherein the anti-seismic stopper structure is provided.   An anti-vibration stand comprising the anti-seismic stopper structure according to any one of claims 1 to 6.

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