JP2001304335A - Vibration proof table - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vibration proof table which is reducible in cost and easily assembled. SOLUTION: The mutual end parts of frame members in the abutting state at corner parts C among frame members 10, 11 framing a mounting frame 1, and the mutual end parts of frame members in the abutting state at the corner parts among frame members 20, 21 framing a base frame 2, are respectively fixed and connected by screw-driven fasteners F via connecting fittings 5. Each connecting fitting 5 is formed with a fitting part D, for fitting a space regulator 4 in the internal angle corresponding position of the corner part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anti-vibration table having an anti-vibration structure for installing air conditioners for factories and buildings.

[0002]

2. Description of the Related Art In general, a vibration isolating table of this type has a rectangular mounting frame provided with a mounting portion for an air conditioner and a rectangular base frame provided with a mounting portion for a fixed portion. An elastic vibration isolator for receiving a load on the mounting frame side at a plurality of portions opposed to each other in the vertical direction between the mounting frame and the base frame, and a vertical direction between the mounting frame and the base frame. And an interval restricting member for restricting the contact from increasing the arrangement interval beyond the set interval.

Further, the mounting frame and the base frame of such a vibration isolating table are formed by welding the ends of the frame materials that are in abutting state at each corner of the frame material constituting the frame. They are connected and assembled into a rectangular frame structure.

[0004]

Therefore, in the vibration isolating table having the above-described configuration, a special process such as welding is required for manufacturing the rectangular mounting frame and the base frame, and the three-dimensional process is required. The conventional welded parts are separated at each corner, so it takes time, but the strength and the degree of perfection are high, so the current production configuration is maintained, and it is difficult to reduce the cost.
There is a problem that we want to solve.

[0005] In addition, this type of vibration isolating table is manufactured while checking it using an inspection tool such as a measuring gauge in order to determine the right angle or the like of a corner portion of each frame material. It was troublesome.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and has as its main object to provide a vibration-isolating table which can reduce costs and can be easily assembled. It is in.

[0007]

According to a first aspect of the present invention, there is provided a vibration isolating table having a rectangular mounting frame provided with a mounting portion for equipment and a rectangular mounting frame provided with a mounting portion for a fixed portion. An elastic vibration isolator that receives a load on the mounting frame side at a plurality of portions where the mounting frame and the mounting frame are vertically opposed to each other in a vertical direction. A vibration isolator provided with an interval restricting member for restricting the vertical arrangement interval between the base frame and the base frame from expanding beyond the set interval, and forming the frame as described above. Of the frame materials, the ends of the frame materials that are in the butted state in the corner portion, and the frame materials that are in the butted state in the corner portion among the frame materials that form the base frame. The ends are fixedly connected to each other with a screw-type fastener via a connection fitting, and the connection fittings include: Lies in the entrance corner corresponding position of the serial corner is formed a mounting portion for mounting the space restricting member.

[0008] According to the above-mentioned characteristic configuration, as compared with a conventional method in which frame materials are integrally formed by welding to form a rectangular mounting frame and a base frame to produce a vibration isolating table. Since it is possible to reduce the number of specialized processes such as the welding process for the production of the frame and the base frame, it is possible to produce it with the technology of fixing and connecting with screw type fasteners.
Cost reduction is possible and assembly is simple.

[0009] In addition, by using the corners of the corners of the mounting frame and the base frame to attach a space regulating member, the mounting frame and the corners of the base frame that are dead spaces are reduced. It can be used effectively. In addition, since the mounting portion is formed integrally with the connection fitting, the number of parts is reduced.

Further, since the vibration isolator according to the present invention is constructed in an assembling type that can be easily assembled, the vibration isolator in the assembled state can be carried in and installed on the site, or the vibration isolator can be installed on the site. Can be assembled and installed, and the transport mode can be freely selected according to the situation of the installation site, so that flexible transport management according to the current situation becomes possible.

According to a second aspect of the present invention, there is provided a vibration isolator according to the present invention, wherein the cross-sectional shape of each frame member of the frame is a U-shape or a substantially U-shape opening toward the base frame side. And the cross-sectional shape of each frame material of the base frame is formed in a U-shape or a substantially U-shape that opens toward the mounting frame side, and is opposed in the vertical direction. The point is that the elastic vibration isolators are inserted and arranged in the two frame members.

According to the above-mentioned characteristic configuration, since the elastic vibration isolator can be interposed at any position where the mounting frame and the base frame oppose each other, the elastic frame is placed on the mounting frame. Since the number of elastic vibration isolators corresponding to the weight of the equipment to be installed can be interposed, the structure of the mounting frame and The number can be changed and attached freely, and it has excellent compatibility with the current situation.

According to a third aspect of the present invention, in the vibration isolating table according to the third aspect of the present invention, each of the connecting fittings is fastened and fixed to opposing inner surfaces of one of the frame members in abutting state at the corner portion. The first and third connecting plate portions, the second connecting plate portion which is fastened and fixed to the outer surface of the other frame member while connecting the end portions of the two connecting plate portions, and the mounting portion of the space regulating member are formed. And a fourth connecting plate portion which is fixed to the inner surface of the other frame member while being continuous with the third connecting plate portion via the plate portion.

According to the above-mentioned feature, of the frame members forming the frame, the ends of the frame members in the abutting state at the corner portion and the base frame are framed. Of the frame members, the ends of the frame members that are in abutting state at the corners can be fixedly connected to each other by screw-type fasteners via connection metal fittings. The first to fourth connecting plate parts of the connecting metal fittings are fixedly connected to the corresponding frame material parts, respectively, as compared with those that must be manufactured while checking the perpendicularity etc. using an inspection tool such as Thus, the perpendicularity and the like of each frame material of the assembled mounting frame and base frame are set, so that a vibration-proof table with simple manufacturing and high manufacturing accuracy can be formed.

According to a fourth aspect of the present invention, in the vibration isolator according to the fourth aspect of the present invention, the fourth connecting plate portion is disposed at a position deviated in the longitudinal direction of the frame member with respect to the second connecting plate portion. On the point.

According to the above-mentioned characteristic configuration, the second connecting plate portion,
Since the length of the connection portion is equal to or greater than the sum of the length of the frame material in the longitudinal direction with the fourth connection plate portion, the second and fourth connection plates are provided with respect to the first and third connection plate portions. A rigid structure can be formed with a simple assembling structure, such as a long connecting portion in which the portions are orthogonal to each other, and a strong resistance against bending moment.

[0017]

Embodiments of the present invention will be described below with reference to the drawings. In this embodiment, the present invention is applied to a vibration isolator A of an air conditioner B.

As shown in FIGS. 1 and 2, the vibration isolating table A has a rectangular mounting frame 1 provided with a mounting portion 1A for an air conditioner B and a rectangular mounting frame 1 provided with a mounting portion 2A for a fixing portion C. The base frame 2 is vertically arranged, and a plurality of portions of the mounting frame 1 and the base frame 2 which oppose each other in the vertical direction receive elastic loads on the mounting frame side. And the frame 1 and the base frame 2 described above.
And an interval restricting member 4 for restricting the contact between the vertical interval and the vertical interval between the first and second positions.

As shown in FIGS. 2, 3 and 5, the mounting frame 1 is composed of a pair of short frames 10 and 10 opposed in one direction.
And a pair of long frame members 11, 11 facing in the other direction, the frame members are configured in a rectangular shape, and among the frame members 10, 10, 11, 11 forming the frame described above,
Frame members 10 and 1 in abutting state at corner portion C
The ends 1 are fixedly connected to each other by a screw-type fastener F including a bolt 7 and a nut 8 via a connection fitting 5.

As shown in FIGS. 2, 4 and 5, the base frame 2 has a pair of short frames 20 and 2 opposed in one direction.
0 and a pair of long frame members 21 and 21 facing each other in a rectangular shape, and among the frame members 20, 20, 21 and 21 forming the base frame 2. , Frame material 2 in abutting state at corner portion C
The ends of 0 and 21 are fixedly connected to each other by a screw-type fastener F composed of a bolt 7 and a nut 8 via a connection fitting 5.

Here, the short frame members 10, 20 are one of the frame members described in the claims, and the long frame member 1
Reference numerals 1 and 21 are other frame members described in the claims. In this embodiment, the long facing frame members 10 (2
0) and 10 (20), the short facing frame members 11 (2
1) and 11 (21) are arranged in a rectangular frame.

Each of the frame members 10, 10, 11, and
11 is formed of a U-shaped steel plate that opens toward the base frame 2 side, and the cross-sectional shape of each of the frame members 20, 20, 21, 21 of the base frame 2. However, it is composed of a U-shaped steel plate that opens toward the mounting frame 1 side. An elastic vibration isolator 3 is disposed between the mounting frame 1 and the base frame 2 which face each other in the vertical direction.
In this embodiment, they are arranged at the corners C of the frame members 10 and 20.

More specifically, the frame 1 and the base frame 2
As shown in FIGS. 3 and 4, the connecting bracket 5 is fastened and fixed to the opposing inner surfaces of the short frame members 10 and 20 at the corners by a bolt 7 and a nut 8, respectively. The first and third connecting plate portions 5A, 5C to be connected to each other and the ends of the two connecting plate portions 5A, 5C are connected to each other by bolts 7 and nuts 8 and fixed to the outer surface of the other frame member. 2
Bolts 7 and nuts are provided on the inner surfaces of the elongated frame members 11 and 21 in a state of being continuous with the third connecting plate portion 5C via the connecting plate portion 5B and the plate portion 5E constituting the mounting portion D of the space regulating member 4. 8 and a fourth connecting plate portion 5D which is fastened and fixed by the second connecting plate portion 5D. Here, the plate portion 5E of the connection fitting 5 is formed corresponding to the corner corresponding to each corner of each of the frames 1 and 2. The fourth connecting plate portion 5D is disposed at a position deviated in the longitudinal direction of the long frame members 11 and 21 with respect to the second connecting plate portion 5B. Further, the first to fifth connecting plate portions 5A, 5B, 5C, 5D and the plate portion 5E of the connecting fitting 5 are formed by bending a steel plate. In this embodiment, the bolts 7 and nuts 8 fasten and fix the opposed outer inner surfaces of the short frame members 10 and 20 to the first connecting plate portion 5A. It is configured in a screw form so that the bolt heads do not protrude from the outer surfaces of the frame members 10 and 20. Further, insertion holes a through which the bolts 7 of the screw type fastener F can be inserted are formed in the frame 1 side and the base frame 2 side, and the connection plate portions 5A, 5 of the connection fitting 5 are formed.
B, 5C, 5D are formed with long holes 5a, into which the bolts 7 of the screw type fastener F can be inserted.

The elastic vibration isolator 3 is, as shown in FIG.
A first cylindrical body 3A having an upper surface opening on the lower side, and a second cylindrical body 3B having an inner diameter slightly larger than the outer diameter of the first cylindrical body 3A and fitted to be vertically closeable and separable from above. , Both cylinders 3A, 3
And a coil spring 3C interposed between B,
The lower end of the coil spring 3C contacts the bottom of the first cylinder 3A, and the upper end of the coil spring 3C contacts the bottom of the second cylinder 3B, with respect to the lower first cylinder 3A. The elastic force of the coil spring 3C acts on the upper second cylindrical body 3B. Although not shown, the two cylindrical bodies 3A and 3B come into contact with each other when the second cylindrical body 3B is separated from the first cylindrical body 3A by a predetermined distance or more, and the outer cylindrical body 3A and the second cylindrical body 3B are separated from each other. A stopper that prevents the fitted state from being released is provided, and the elastic vibration isolator 3 can be handled as a single body. Further, the first cylindrical body 3A is provided with a non-slip pad 3D having a detachable structure.

As shown in FIG. 2, the plate portion 5E of the connection fitting 5 disposed at the corner portion C of the lower base frame 2 and the corner portion of the upper mounting base 1 disposed opposite thereto. C
An insertion hole 5f is formed in the plate portion 5E of the connection fitting 5 disposed in the lower portion, and the lower end portion 4B of the bolt rod 4A is inserted in the insertion hole 5f in the lower plate portion 5E. Part 5E
Nuts 4C and 4C are attached and fixed in a co-tightened state to pinch them from above and below.
A small-diameter portion 4D that can be inserted through the hole is formed, and an insertion hole 5f is formed in the upper portion.
A restricting portion 4AA made of an elastic material such as rubber and having a large-diameter portion 4E that cannot be inserted therethrough is integrally attached to an upper end portion of the bolt rod 4A. The space restricting member 6 includes a mounting portion D, which is a plate portion 5E of the upper and lower connecting metal members 5, a bolt rod 4A having a restricting portion 4AA, and the bolt rod 4A, which is mounted on the lower mounting portion D and a bolt rod 4A. And a pair of nuts 4C, 4C that make it possible to adjust the length to the set length.

With such a configuration, a pair of short frame members 10, 10 and a pair of long frame members 11, 11 are connected to each other via the connecting fitting 5, the bolt 7, and the nut 8 to form a rectangular shape. The mounting frame 1 can be assembled. Also, a pair of short frame members 2
0, 20 and a pair of long frame members 21, 21
The rectangular base frame 2 can be assembled via the bolt 7 and the nut 8.

An elastic vibration isolator 3 is interposed between each corner portion C of the mounting frame 1 and each corner portion c of the base frame 2 to connect the mounting frame 1. The anti-vibration table A can be assembled by interposing the space restricting member 4 between the plate 5E of the metal fitting 5 and the plate 5E of the connecting metal 5 of the base frame 2. In this assembled state, the mounting frame 1 receives an upward elastic force with respect to the base frame 2 by the elastic vibration isolator 3, and the large-diameter portion 4E of the spacing restrictor 4 is connected to the connecting metal fitting 5 on the mounting frame 1 side. By contacting the mounting portion D, which is the plate portion 5E, the placement interval of the mounting frame 1 with respect to the base frame 2 in the vertical direction is restricted from expanding beyond the setting. In addition, when a load is applied to the mounting frame 1, the mounting frame 1 approaches the base frame 2 in a horizontal state at a position where the elastic force of the elastic vibration isolator 3 is balanced.

As shown in FIG. 6, the assembled anti-vibration table A is carried into an installation site, and although not shown, the base frame 2 is fixed to the installation fixing portion via anchor bolts, and then the mounting frame 1 is mounted. The air conditioner B is installed and fixed thereon via bolts or the like.

[Other Embodiments] 1) In the above embodiment, the ends of the frame members 20 and 21 and the connection fitting 5 are fixedly connected via a screw-type fastener F including a bolt 7 and a nut 8. However, the present invention is not limited to this, and in this embodiment, a thick female screw portion is formed at a portion corresponding to the nut 8 side, and the frame members 20 and 2 are formed.
A configuration may be adopted in which the end portions of the first and the connection fittings 5 are fixedly connected to each other via a screw-type fastener F including a bolt 7 and a female screw portion.

2) In the above embodiment, the cross-sectional shapes of the frame members 10, 10, 11, 11 of the mounting frame 1 and the frame members 20, 20, 21, 21 of the base frame 2 are as follows. Although the U-shaped member that opens toward the mounting frame 1 has been described, the present invention is not limited to this, and the frame members 10, 10, 11, 11 of the mounting frame 1, and , Each frame material 2 of the base frame 2
The cross-sectional shapes of 0, 20, 21, and 21 may be substantially U-shaped. As used herein, the substantially U-shape refers to, for example, a form in which the opposite ends of the U-shaped short pieces are slightly bent inward or outward.

3) In the above embodiment, the rectangular frames 11 (21), 11 (21) in which the short opposing frame members 11 (21), 11 (21) are provided between the long opposing frame members 10 (20), 10 (20). In addition to the frame structure having the shape, long opposed frame members 10 (20) and 10 (20) are provided between the short opposed frame members 11 (21) and 11 (21). A rectangular frame configuration may be used, or a frame in which the base end of the other frame member is provided at the inner end of one frame member and the pattern is continuously formed in a rectangular shape.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an entire vibration isolating table to which the present invention is applied.

FIG. 2 is an exploded perspective view of a main part showing a structure of a vibration isolation table.

FIG. 3 is a plan view showing a main part of the mounting frame.

FIG. 4 is a plan view showing a main part of a base frame;

FIG. 5 is a sectional view of a main part showing a structure of a vibration isolator.

FIG. 6 is a simplified cross-sectional view of a principal part showing a mounting state of a vibration isolator.

[Explanation of symbols]

 Reference Signs List A vibration isolator B air conditioner (equipment) C corner D mounting part F screw-type fastener 1 mounting frame 1A mounting part 2 base frame 2A mounting part 3 elastic vibration isolator 4 spacing restrictor 5 connecting fitting 5A first Connecting plate portion 5B Second connecting plate portion 5C Third connecting plate portion 5D Fourth connecting plate portion 5E Plate portion 10 Frame material 11 Frame material 20 Frame material 21 Frame material

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) F16F 15/06 F16F 15/06 B F24F 5/00 D

Claims (4)

[Claims] A rectangular mounting frame provided with a mounting portion for a device and a rectangular base frame provided with a mounting portion for a fixed portion are vertically arranged, and the mounting frame, the base frame and An elastic vibration isolator for receiving a load on the mounting frame side at a plurality of portions opposed to each other in the vertical direction of the mounting frame, and the arrangement interval in the vertical direction between the mounting frame and the base frame expands beyond the set interval. A vibration isolating table provided with an interval restricting member for restricting the contact of the frame member, wherein, of the frame members constituting the frame of the above-mentioned frame, an end of the frame member in abutting state at a corner portion. The ends of the frame members, which are in abutting state in the corner portion of the frame members constituting the base frame, are fixedly connected to each other by screw-type fasteners via connection metal fittings. At the same time, each of the connection fittings is provided with an interval regulating tool at a position corresponding to the corner of the corner. It is formed with attaching portions vibration isolation. 2. The cross-sectional shape of each frame material of the frame according to the above-mentioned frame is formed in a U-shape or a substantially U-shape that opens toward the base frame, and The cross-sectional shape of each frame member is formed in a U-shape or a substantially U-shape that opens toward the mounting frame side, and the elastic vibration isolators are inserted and arranged in both frame materials opposing each other in the vertical direction. The vibration isolator according to claim 1, wherein the vibration isolator is provided. 3. A first and third connecting plate portions each of which is connected and fixed to opposing inner surfaces of one of the frame members in abutting state at a corner portion, and both connecting plates. The second connecting plate portion fastened and fixed to the outer surface of the other frame member in a state where the ends of the portions are connected to each other, and the third connecting plate portion is connected to the third connecting plate portion via a plate portion forming an attachment portion of the gap regulating tool. The vibration isolator according to claim 2, further comprising: a fourth connection plate portion that is fastened and fixed to an inner surface of the other frame member in a state. 4. The anti-vibration table according to claim 3, wherein the fourth connection plate portion is disposed at a position deviated in the longitudinal direction of the other frame member with respect to the second connection plate portion.