JP2011047499A - Vibration control pedestal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vibration control pedestal which is basically in a simple structure for arranging a long pedestal unit 1 sidewise and connects the unit by a beam member 9, facilitates easy assembling, attains reduction in weight and cost and easy installation operation while wobbling less. <P>SOLUTION: A beam member 9 is respectively linearly provided over both ends of the upper pedestals 2 of the pair of pedestal units 1 so that the upper pedestals 2 are connected with each other. The cross section area of the beam member 9 is a U-shape and the fitting parts of both the ends of the upper pedestals 2 are fit to both the end of the beam member 9 respectively. In the case that the fitting parts are used as vibration control brackets 5, it is preferable to have a bag-like three-dimensional structure consisting of a floor 60, a vertical wall part 61 and a side wall 62 and to have a shelf board 70 arranged separately above the floor 60. Bolt through-holes 60a, 70a are provided on the floor 60 and the shelf board 70 respectively and it is preferable to loosely hold a shaft of an earthquake resistant bolt 8. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a vibration isolator for installing equipment with large vibrations such as an air conditioner, and particularly relates to a structure in which two long base units are connected side by side.

  Conventionally, this type of anti-vibration mount has a structure in which its constituent members are fastened not by welding but by bolts so that it can be disassembled in consideration of convenience during transportation. is there. For example, in the thing of patent document 1, the frame materials which each comprise a rectangular mounting frame and a base frame are faced | matched in a corner part, and it fastens with the screw | thread via a connection metal fitting.

  However, in the above-mentioned document, since both the mounting frame and the base frame are formed in a rectangular frame shape, the weight increases as a whole, and it can be said that convenience during transportation is very high. Also, it takes time to assemble at the installation location. Moreover, it is difficult to say that the cost reduction is sufficient.

  In this regard, for example, as disclosed in Patent Documents 2 and 3, if a long gantry unit (anti-vibration unit, rail-type anti-vibration table) is arranged side by side and equipment is mounted thereon, It is lightweight and easy to transport, does not require much time for assembly, and costs can be greatly reduced.

JP 2001-304335 A JP-A-7-139589 Japanese Utility Model Publication No. 55-039870

  However, as in the latter conventional example (Patent Documents 2 and 3), it is difficult to say that the arrangement of the two gantry units is sufficiently rigid to install equipment with large vibration. That is, the lower base (lower support member, base) of each base unit is firmly fixed to the foundation by anchor bolts, while the upper base (upper support member, base) is fixed to the bottom of the device. This is because the bottom of the device may lack rigidity.

  On the other hand, it is conceivable to bridge and connect the beam members between at least the upper bases. In such a case, as in the former conventional example (Patent Document 1), the frame members attached together at the corner portions If the structure is fastened, it will take time to assemble and cost reduction will be insufficient.

  The present invention has been made in view of such a point, and is based on a simple structure in which long gantry units are provided side by side, and does not require assembling work, and the cost can be sufficiently reduced. An object of the present invention is to provide a vibration isolator that can secure the necessary rigidity.

  In order to achieve the above object, in the present invention, a beam member is bridged so that both ends of the upper frame of the pair of frame units are connected to each other, and both ends of the beam member are respectively fitted to the ends of the upper frame. Combined, they are firmly connected.

  That is, according to the first aspect of the present invention, a pair of gantry units each having an anti-vibration body interposed between an upper gantry and a lower gantry each made of a long square pipe material are arranged side by side and are mutually coupled. The anti-vibration mount in which both end portions of the upper mount are connected by beam members.

  The beam member has a U-shaped cross section that is formed by bending the upper and lower edges of the horizontally long main plate portion to form an upper plate portion and a lower plate portion, and is fitted between the upper plate portion and the lower plate portion. The fitting part is provided in the edge part of the said mount frame. The fitting portion has an L-shaped side wall portion and a floor portion as viewed in the longitudinal direction of the upper frame, and the upper plate portion of the beam member presses the upper edge of the side plate portion from above, The lower plate portion of the beam member is pressed against the portion from below, and the fitting portion is fitted in a state where the fitting portion is sandwiched between the upper plate portion and the lower plate portion.

  In the vibration isolator having such a structure, both ends of the upper base are connected to each other by a beam member, and the whole becomes a rectangular frame shape, so that it is easy to ensure rigidity. Moreover, the fitting part provided in the edge part of the upper frame has an L-shaped side wall part and a floor part, and when they are fitted into a beam member having a U-shaped cross section, the upper edge of the side wall part is a beam. While biting into the upper plate portion of the member, the floor portion and the lower plate portion are pressed against each other in a stable surface contact state and are firmly coupled.

  In addition, when connecting with the beam member, it is only necessary to assemble the beam member at the end of the upper frame with respect to the pair of frame units arranged side by side. .

  As an example, the edge of the upper plate part of the beam member is bent downward, and the notch is provided in the side wall part of the fitting part correspondingly, while the lower plate part of the beam member and the floor part of the fitting part are provided. An engaging portion may be provided so as to engage with each other. In this way, first, the bent portion of the upper plate portion of the beam member is hooked on the cutout of the side wall portion, and then the main plate portion and the lower plate portion of the beam member are pushed in, thereby fitting the lower plate portion. It can be securely fitted to the floor of the joint.

  It is preferable to use a known earthquake-resistant bracket as a fitting portion at the end of the upper base. In other words, conventionally, an earthquake-resistant stopper is often provided at the end of the gantry unit. In this case, the earthquake-proof bolts are arranged upward at both ends of the lower gantry, while the earthquake-proof bolts are provided at both ends of the upper gantry. Install the seismic bracket to cooperate with the bolt.

  Therefore, the seismic bracket is disposed at an intermediate height between the upper frame and the lower frame, and has a rectangular floor portion in which a through hole into which the shaft portion of the seismic bolt is inserted, and one edge of the floor portion. From the other edge adjacent to the one edge of the floor portion, the upper wall is L-shaped. The side wall portion and the floor portion are respectively used as the side wall portion and the floor portion of the fitting portion.

  In this way, since the floor portion of the seismic bracket is located at the intermediate height between the upper frame and the lower frame, the beam member that is fitted so as to be sandwiched up and down from the upper edge of the side wall of the seismic bracket to the floor. Means that they are pressed against each other at two locations that are relatively far apart from each other in the vertical direction. In other words, since the upper and lower spans of the U-shaped beam member sandwiching the fitting portion of the upper base by the upper plate portion and the lower plate portion are increased, the rigidity of the fitting is secured against the twist of the upper base. Cheap.

  However, even if the rigidity against the torsion of the gantry is increased, that alone is not sufficient, and there is still a concern that the installation workability of the equipment is lowered. For example, if you try to shift the device temporarily placed on the gantry unit to the side, the upper and lower gantry may be twisted and the gantry unit may wobble, or the gantry unit may fall before anchoring the lower gantry .

  It is preferable against such twisting and wobbling of the gantry unit that a rectangular shelf plate portion is provided substantially parallel to the floor portion of the earthquake-resistant bracket at a predetermined interval, and the shelf plate portions are adjacent to each other. The two edges are connected to the wall and side walls, respectively, to reinforce the seismic bracket itself, and to insert the shaft portion of the seismic bolt into the through hole formed in the shelf plate in a loosely fitted state ( Claim 3).

  In this case, the rigidity of the seismic bracket itself is increased, so that the fit between the upper frame and the beam member is further ensured through this, and the gantry unit is twisted using the seismic bolts on it. , Wobble can be effectively suppressed. That is, the shaft portion of the seismic bolt is inserted into the respective through holes of the floor portion and the shelf plate portion of the seismic bracket in a loosely fitted state, and relative displacement in the horizontal direction is restricted at two locations separated vertically. .

  In this case, it is preferable that the shelf plate portion of the earthquake-resistant bracket is positioned below the lower wall of the upper base and between the lower floor and the lower base between the floor and the lower base. Is a large interval (claim 4). If it carries out like this, two places which regulate the horizontal displacement of the earthquake-resistant bracket of an upper frame and the earthquake-proof bolt of a lower frame will be left | separated large enough up and down, and the effect of preventing the above-mentioned twist and wobble will increase further. The reason why the shelf plate portion is positioned below the lower wall of the upper base is to prevent the upper end of the bolt protruding upward from the shelf plate portion from interfering with the device.

  Further, it is preferable that a rubber bush is interposed between each through hole of the floor portion and the shelf plate portion of the earthquake-resistant bracket and the shaft portion of the earthquake-proof bolt. While suppressing transmission, it is possible to avoid contact between the earthquake-resistant bracket and the earthquake-resistant bolt, that is, metal members (claim 5).

  As described above, the anti-vibration frame of the present invention is based on a simple structure in which a pair of long frame units are arranged side by side, and the upper frame units of these frame units are connected by beam members. With the rectangular frame shape, the required rigidity can be ensured.

  In addition, since the beam member is fitted to the upper base using bolts without using bolts, for example, an earthquake-resistant bracket or the like is used.

  Furthermore, if the shaft part of the seismic bolt is loosely fitted and held at two locations apart from the top and bottom of the seismic bracket, twisting and wobbling of the upper base with respect to the lower base can be effectively suppressed, and rigidity against torsion of the base unit This increases the installation workability of the equipment.

It is the top view (a), front view (b), and side view (c) of the vibration isolator which concerns on embodiment. It is an expansion perspective view of the corner part where the edge part of an upper stand and the edge part of a beam member are couple | bonded. FIG. 3 is a view corresponding to FIG. 2 illustrating the structure of the earthquake-resistant stopper with the beam member removed. FIG. 3 is a view corresponding to FIG. 2 viewed from the side of the vibration isolation table. It is explanatory drawing equivalent to FIG. 4 which shows a part of earthquake-resistant bracket in a cross section. FIG. 6 is a view corresponding to FIG. 5 illustrating the assembly of the beam member to the earthquake-resistant bracket.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. It should be noted that the following description of the preferred embodiment is merely illustrative in nature, and is not intended to limit the present invention, its application, or its use.

  FIG. 1 shows an example of an embodiment in which the vibration isolator according to the present invention is a so-called air conditioner anti-vibration base A. FIG. 1 (a) is a plan view, and FIG. 1 (b) and FIG. FIG. This anti-vibration base is used for installing an outdoor unit of an air conditioner (air conditioner) (not shown). In the example shown in the drawing, a long base unit 1 (which is a so-called rail-type anti-vibration base) is arranged side by side. Two beam members 9, 9 to be described later are bridged and connected to both ends thereof.

  In this example, the pair of gantry units 1 and 1 are the same, and a long upper gantry 2 and a lower gantry 3 each made of a rectangular pipe material (for example, a square steel pipe for structure) having a rectangular cross section are vertically Two isolators 4, 4 are interposed in the longitudinal direction of the upper frame 2 and the lower frame 3 between them. The isolator 4 is a vibration isolator that reduces vibration transmission between the upper pedestal 2 and the lower pedestal 3, and for example, a coil spring and a rubber that are integrally molded, or a resin case that incorporates a coil spring is used.

  In the illustrated gantry unit 1, the lower gantry 3 is longer than the upper gantry 2, and both end portions thereof protrude outward from the end portions of the upper gantry 2. Base plates 31, 31,... Formed by bending iron plates in a U-shape are fitted to both ends of the undercarriage 3 so as to cover the protruding portions. On the other hand, seismic brackets 5 are attached to both ends of the upper base 2, and an anti-seismic stopper S for regulating relative displacement with the upper base 2 is formed between the upper base 2 and the lower base 3 as described below. is doing.

-Seismic stopper-
In FIG. 1A, the corner portion located at the lower right is enlarged and shown in FIGS. 2 to 4, and in this example, the seismic bracket 5 is a combination of the main bracket member 6 and the sub bracket member 7. The earthquake-resistant stopper S is configured in cooperation with the earthquake-resistant bolt 8 extending upward from the lower platform 3. The main bracket member 6 is formed by bending an iron plate, and has a rectangular floor portion 60 whose long side extends in the longitudinal direction of the upper and lower frames 2 and 3, and a wall that rises upward from the edge of the short side of the floor portion 60. A portion 61 and a side wall portion 62 rising upward from the edge of the long side of the floor portion 60 are provided. The side wall portion 61 and the side wall portion 62 are connected in an L shape by welding their side edges.

  In the example shown in the figure, the upper edge of the wall 61 is bent along the edge of the lower wall of the upper frame 2 that is a square pipe, and an extension extending along the upper surface of the lower wall is formed. Are screwed to the lower wall of the upper base 2 (FIG. 5 shows a nut 22 screwed onto the screw). The side wall 62 is formed with an extension extending along the inner wall of the upper base 2 (shown by broken lines in FIGS. 2 and 3). It is fastened.

  As shown in FIG. 3, a slit 60 a is formed in the floor portion 60 of the main bracket member 6, a notch 62 a is formed on the upper edge of the side wall portion 62, and a side edge on the side opposite to the flange wall portion 61. Each has a convex side 62b and is used for coupling to the beam member 9 as will be described later.

  Further, in this example, the sub bracket member 7 is also formed by bending an iron plate, and a rectangular shelf plate portion 70 positioned substantially in parallel with an appropriate interval above the floor portion 60 of the main bracket member 6 described above. And a trapezoidal side wall portion 71 that rises upward from the edge of the long side of the shelf plate portion 70 and whose front edge recedes toward the upper side, and further extends upward from the upper edge of the side wall portion 71 and then bends sideways. And an upper plate portion 72 extending in parallel above the shelf plate portion 70, and a hanging portion 73 that is bent at the opposite edge to the side wall portion 71 of the upper plate portion 72 and hangs down.

  Further, as shown by broken lines in FIGS. 2 and 3, the side wall portion 71 of the sub bracket member 7 is formed with an extension portion that overlaps with the extension portion of the main bracket member 6, and is fastened together with the extension portion. Screwed to the side wall of the base 2. A similar extending portion is also provided in the hanging portion 73 of the sub bracket member 7 as shown by a broken line in FIG. 4, which is overlapped on the side wall of the upper base 2 from the inside, and the screw 23 and the same. The nut 24 is screwed together.

  Thus, the upper plate portion 72 of the sub bracket member 7 attached to the upper pedestal 2 has its upper surface positioned substantially on the same plane as the upper surface of the upper pedestal 2, and substantially extends the upper pedestal 2 in its longitudinal direction. Thus, it has a function of receiving the outdoor unit. Although only shown in FIG. 5, a convex side 70 a is provided on one edge of the shelf plate portion 70 that contacts the wall portion 61 of the main bracket member 6, and a slit 61 a formed in the wall portion 61. It is inserted in.

  As described above, the earthquake-resistant bracket 5 in which the main bracket member 6 and the sub bracket member 7 are combined is substantially perpendicular to the flange wall portion 61 and the side wall portion 62 of the main bracket member 6 having an L shape. As described above, the floor portion 60 of the main bracket member 6 and the shelf plate portion 70 of the sub bracket member 7 are integrally combined to form a highly rigid bag-like three-dimensional structure.

  The floor portion 60 and the shelf plate portion 70 that are substantially parallel to each other have round holes 60b and 70b (shown only in FIG. 5) so as to penetrate through the respective opposing portions. The shaft portion is inserted in a loosely fitted state (hereinafter referred to as bolt through holes 60b and 70b, respectively). In the example of the figure, the seismic bolt 8 is disposed so that its shaft portion extends upward through the upper wall of the undercarriage 3 and the base plate 31 overlapping therewith, and is screwed into the base of this shaft portion. Fastened with a nut 81.

  Further, as clearly shown in FIG. 5, a rubber bush 82 is externally attached to a portion of the shaft portion of the earthquake-resistant bolt 8 inserted into the bolt through hole 60 b of the floor portion 60 of the earthquake-resistant bracket 5. The rubber bush 82 includes a cylindrical portion having a diameter slightly smaller than that of the bolt through hole 60b and a flange portion connected to the cylindrical portion, and the flange portion is in contact with the peripheral portion of the bolt through hole 60b from above. Further, a nut 84 is screwed onto the shaft portion of the seismic bolt 8 with a plain washer 83 interposed on the collar portion.

  That is, although the figure shows a state in which the flange portion of the rubber bush 82 is in contact with the floor portion 60 of the earthquake-resistant bracket 5, this is when the vibration isolator A is not used and the vibration isolator A is used. Sometimes, the position of the nut 84 is adjusted to form a gap having an appropriate size (about 2 to 3 mm) between the upper surface of the floor portion 60 and the lower surface of the flange portion of the rubber bush 82. Thereby, the relative displacement of the upper frame 2 and the lower frame 3 in the vertical direction due to an earthquake or the like can be appropriately regulated.

  Moreover, even when the upper base 2 and the lower base 3 are relatively greatly displaced due to an earthquake or the like, contact between the earthquake-resistant bracket 5, the earthquake-resistant bolt 8, and the flat washer 83, that is, contact between metal members is avoided. . In addition, the space | interval of the floor part 60 of the earthquake-resistant bracket 5 and the lower base 3 (base plate 31) below it is made into about 30 mm from the upper limit etc. of the inclination accept | permitted by the upper base 2, etc.

  Thus, the floor portion 60 of the earthquake-resistant bracket 5 and the shaft portion of the earthquake-resistant bolt 8 cooperate to form a conventional general earthquake-resistant stopper S. In this embodiment, the floor portion 60 is more than the floor portion 60. The shaft portion of the seismic bolt 8 extending upward is also inserted into the bolt through hole 70 b of the shelf plate portion 70. In the example of the drawing, the size of the bolt through hole 70b is the same as that of the bolt through hole 60b of the floor portion 60. The same rubber bushing 85 as the rubber bushing 82 is inserted.

  In other words, the shaft portion of the seismic bolt 8 is free from the seismic bracket 5 via the rubber bushes 82 and 85 in the two bolt through holes 60b and 70b of the floor portion 60 and the shelf plate portion 70 that are separated from each other vertically. It is held in a fitted state, and relative displacement in the horizontal direction is restricted. Thus, the inclination of the earthquake-resistant bracket 5 (that is, the upper frame 2) with respect to the earthquake-resistant bolt 8 (that is, the lower frame 3) is restricted, and the twisting and wobbling of the upper frame 2 with respect to the lower frame 3 are effectively suppressed. In addition, the contact between the earthquake-resistant bracket 5 and the earthquake-resistant bolt 8, that is, the metal members, is avoided by the intervention of the rubber bushes 82 and 85.

  Thus, when the displacement between the earthquake-resistant bracket 5 and the earthquake-resistant bolt 8 is restricted at two locations that are separated vertically, an appropriate interval between the two locations, that is, the floor portion 60 and the shelf portion 70 in the earthquake-resistant bracket 5 is used. The interval should be the same as or larger than the interval between the floor 60 and the lower platform 3 (base plate 31) below (about 35 to 40 mm in the example in the figure). 1 torsion and wobbling can be sufficiently suppressed.

−Fitting structure of beam members−
Furthermore, in this embodiment, the end portion of the beam member 9 is fitted into the earthquake-resistant bracket 5 having the above-described configuration so that it can be firmly coupled. The beam member 9 is formed by bending both sides in the width direction of a long plate material in the same direction, and forming the U-shaped cross section as shown in FIGS. It has a main plate portion 90 extending in the lateral direction, and an upper plate portion 91 and a lower plate portion 92 (shown only in FIG. 5) that are bent from both upper and lower edges and extend substantially horizontally, and these upper plate portion 91 and lower plate. The earthquake-resistant bracket 5 is firmly sandwiched between the portions 92.

  That is, as apparent from FIG. 3, the side wall portion 62 and the floor portion 60 of the earthquake-resistant bracket 5 are L-shaped when viewed in the longitudinal direction of the upper base 2, and these are fitted into the end portions of the beam member 9. While the upper edge of the side wall portion 62 bites into the upper plate portion 91 of the beam member 9, the floor portion 60 and the lower plate portion 92 are pressed against each other in a stable surface contact state (see FIG. 5). The earthquake-resistant bracket 5 is firmly fitted into the end of the beam member 9 having a U-shaped cross section.

  Thus, the floor portion 60 of the seismic bracket 5 fitted in the beam member 9 is located at an intermediate height between the upper frame 2 and the lower frame 3 and extends from the floor 60 to the upper edge of the side wall 62. The distance between the top and bottom is relatively large. This means that the upper and lower spans of the beam member 9 having a U-shaped cross section sandwiching the earthquake-resistant bracket 5 by the upper plate portion 91 and the lower plate portion 92 are large, and thus the fitting of the upper base 2 with respect to torsion is achieved. Rigidity is easy to secure.

  Further, in this embodiment, the end edge of the upper plate portion 91 of the beam member 9 is bent downward to form a bent piece 91a (folded portion), which is the upper edge of the side wall portion 62 of the seismic bracket 5 On the other hand, the lower plate portion 92 of the beam member 9 is provided with a locking claw 92a that rises like a wedge, and is engaged with the slit 60a of the floor portion 60 of the earthquake resistant bracket 5. It has become.

  That is, when the seismic bracket 5 is fitted into the end of the beam member 9, first, the bent piece 91a of the upper plate portion 91 of the beam member 9 is attached to the side wall of the seismic bracket 5 as shown by a black arrow in FIG. It fits into the notch 62a of the part 62, and thereby the back member 9 is hooked and temporarily held. Then, the lower plate portion 92 of the beam member 9 is pushed into the floor portion 60 of the earthquake-resistant bracket 5 so as to fit from the outside as indicated by black arrows in FIG.

  As a result, the locking claws 92a of the lower plate portion 92 of the beam member 9 are first brought into contact with the edge of the floor portion 60 of the earthquake-resistant bracket 5 and bent downward, and slidably contact the peripheral edge portion of the slit 60a of the floor portion 60. After that, the shape is recovered as shown in FIG. 5 and enters the slit 60a. Thus, the latching claw 92a that has entered the slit 60a has a wedge shape, and the rear end portion (left end portion in FIG. 5) that protrudes greatly comes into contact with the peripheral edge of the slit 60a.

  Thus, when the earthquake-resistant bracket 5 is fitted into the beam member 9, the convex side 62b provided on the side edge of the side wall portion 62 of the earthquake-resistant bracket 5 is the main plate of the beam member 9 as shown in FIG. It is inserted into the slit 90 a that opens in the portion 90.

  2 to 6 are round holes through which fastening bolts for fixing the upper base 2 to the bottom of the outdoor unit are inserted. Reference numerals 31a and 3a shown in FIGS. It is a round hole through which an anchor bolt fixed to the foundation is inserted.

-Effect-
Therefore, when installing, for example, an outdoor unit of an air conditioner using the vibration isolator A according to this embodiment, first, the two long base units 1 and 1 are arranged side by side, and the anti-seismic brackets at both ends thereof. The both ends of the beam member 9 are fitted to 5 and 5, respectively. At this time, the worker hooks and holds the bent portion 91a of the upper plate portion 91 of the beam member 9 on the notch 62a of the side wall portion 62 of the earthquake-resistant bracket 5 as described above (see FIG. 6). The lower plate portion 92 of the beam member 9 only needs to be pushed into the earthquake-resistant bracket 5, and fastening work with bolts or the like is not required and takes time and effort.

  By simply pushing both ends of the beam member 9 into the seismic brackets 5 and 5, respectively, they can be securely fitted together, and both ends of the pair of upper bases 2 and 2 are linear. Since these are connected by the beam members 9 and 9 to form a rectangular frame shape, it is easy to ensure the required rigidity.

  Moreover, in this embodiment, the rigidity of the seismic bracket 5 is increased by combining the main bracket member 6 and the sub bracket member 7, and the floor 60 and the shelf board 70 of the seismic bracket 5, i.e., the top and bottom are appropriate. The shaft portion of the earthquake-resistant bolt 8 is loosely fitted and held at two locations apart from each other, thereby effectively suppressing the twisting and wobbling of the gantry unit 1. Therefore, when installing the outdoor unit, the gantry unit 1 can be prevented from wobbling and falling, and workability is improved.

  In the above-described embodiment, the seismic bracket 5 is fitted to the end of the beam member 9 to ensure the rigidity. However, for the sake of safety, both of them may be screwed and bolted. Good. In addition, the above-described fitting structure is merely an example, and various structures for attaching the end of the beam member 7 to the end of the upper base 2 can be considered, and a conventional fastening structure using a bolt is also possible. is there.

  Further, rubber bushes 82 and 85 are extrapolated to the shaft portion of the earthquake-resistant bolt 8 so as to correspond to the floor portion 60 of the earthquake-resistant bracket 5 and the bolt through holes 60b and 70b of the shelf plate portion 70, respectively. , 85 can be omitted.

  In addition, the distance between the floor portion 60 and the shelf plate portion 70 of the earthquake-resistant bracket 5 does not need to be equal to or greater than the distance between the floor portion 60 and the lower gantry 3 below it as in the above embodiment, and the gantry unit 1 is twisted. It may be set as appropriate in consideration of suppression of wobbling and suppression of vibration transmission in the earthquake-resistant stopper S.

  Furthermore, the main bracket member 6 and the sub bracket member 7 need not be combined to form the earthquake-resistant bracket 5 as in the above-described embodiment. For example, the shelf board portion 70 may be welded to the main bracket member 6. Furthermore, the earthquake-resistant bracket 5 may be constituted by only the main bracket member 6 and the shelf board portion 70 may be omitted, and it is not necessary to have a structure in which the earthquake-resistant bracket 5 is fitted into the beam member 9 in the first place.

  Further, the vibration isolator according to the present invention is not limited to the air conditioner anti-vibration base A as in the above-described embodiment, and can be applied as a vibration isolator for various equipment such as a liquid pump unit and a boiler. .

  As described above, the anti-vibration frame according to the present invention is based on a simple structure in which long frame units are provided side by side, and does not require assembling work and can be reduced in weight and cost. Since the work is also easy, the industrial applicability is high.

A Air conditioner anti-vibration table (anti-vibration stand)
S Anti-seismic stopper 1 Base unit 2 Upper base 3 Lower base 4 Isolator (anti-vibration body)
5 Seismic Bracket 6 Main Bracket Member 60 Floor 60b Bolt Through Hole 61 Rift Wall 62 Side Wall 62a Notch 62b Convex 7 Sub Bracket Member 70 Shelf Plate 70b Bolt Through Hole 8 Seismic Bolt 82, 85 Rubber Bush 9 Beam Member 90 Main plate portion 91 Upper plate portion 92 Lower plate portion

Claims (5)

A pair of gantry units each having a vibration isolator interposed between an upper gantry and a lower gantry each made of a long square pipe material are arranged side by side, and both ends of the upper gantry that make a pair with each other An anti-vibration stand connected by beam members,
The beam member is a U-shaped cross-section having an upper plate portion and a lower plate portion by bending the upper and lower edges of the horizontally long main plate portion, respectively.
A fitting portion that is fitted between the upper plate portion and the lower plate portion of the beam member is provided at an end of the upper base,
The fitting portion has an L-shaped side wall portion and a floor portion as viewed in the longitudinal direction of the upper frame, and the upper plate portion of the beam member presses the upper edge of the side plate portion from above, The anti-vibration mount is characterized in that the lower plate portion of the beam member is pressed against the portion from below and is fitted in a state of being sandwiched vertically by the upper plate portion and the lower plate portion. At both ends of the lower frame, earthquake-resistant bolts are arranged with their shafts facing upward, while at both ends of the upper frame, earthquake-resistant stoppers are formed in cooperation with the earthquake-resistant bolts. A seismic bracket is attached,
The seismic bracket is
A rectangular floor portion that is disposed at an intermediate height between the upper frame and the lower frame and that has a through hole into which a shaft portion of the seismic bolt is inserted, and
A wall portion that rises upward from one edge of the floor portion, and whose upper portion is coupled to the lower wall of the upper frame,
A side wall portion that rises upward from another edge adjacent to the one edge of the floor portion and is connected in an L-shape with the wall portion;
The anti-vibration stand according to claim 1, wherein the side wall portion and the floor portion of the seismic bracket are the side wall portion and the floor portion of the fitting portion, respectively. The seismic bracket is provided with a rectangular shelf plate substantially parallel with a predetermined interval above the floor portion, and two adjacent edges of the shelf plate portion are provided on the wall and side walls, respectively. Connected,
The anti-vibration stand according to claim 2, wherein a through-hole into which the shaft portion of the seismic bolt is inserted in a loosely fitted state is formed in the shelf plate portion.   The shelf plate portion of the earthquake-resistant bracket is located below the lower wall of the upper base, and is spaced apart from the lower floor than the floor and the lower base below. The anti-vibration mount according to claim 3, wherein   The anti-vibration stand according to any one of claims 3 and 4, wherein a rubber bush is interposed between each through hole of the floor portion and the shelf plate portion of the earthquake-resistant bracket and the shaft portion of the earthquake-proof bolt.

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