JPH0689811B2 - Anti-vibration device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention is, for example, a product made of FRP which is capable of blocking transmission of vibrations at the connecting portion of an air conditioning facility and at the same time ensuring airtightness and excellent in heat insulation and durability. The present invention relates to a vibration damping device for engineering plastics, a composite material using the same, or a composite material in which the outer periphery of a metal frame is coated with a resin.

(Prior art and its problems) For example, some air conditioners such as air conditioners for buildings have a cooling device part and a blower device part connected to a duct as shown in FIG. In such a case, a vibration isolator is provided between the cooling device portion serving as a vibration source and the blower portion to prevent transmission of vibration. In such an air conditioner, cold air is created inside and is sent out through a duct.Therefore, due to the temperature difference with the outside air surrounding the air conditioner, rivets or upper and lower mounts or airtight sheets are attached. The problem that the bolt becomes a heat bridge and dew condensation occurs on the rivet, the bolt or the upper and lower mounts, and the iron upper and lower mounts and the rivets or bolts are corroded in a short period of time. There was also a drawback that it took a lot of time to put on and take off when there were attachments. Further, since the upper and lower pedestals are made of iron, they are heavy, and as a result, they resonate greatly depending on the frequency, and the anti-vibration device may act as a resonance source rather than causing a problem. Furthermore, when the upper and lower mounts are made of iron, when used in the air conditioning equipment as described above, not only is there a drawback that heat conduction occurs due to heat conduction through the upper and lower mounts and bolts and rivets, as well as iron. There was also a drawback that the frame could not be integrally molded, which required assembly man-hours and increased costs. Further, since the cooling device portion of the air conditioner is heavy, it is necessary to move the position of the vibration absorber after the installation of the vibration isolator in order to find the optimum vibration isolation condition, and therefore the vibration absorber can be easily moved after the installation. Although it must have a structure, when the vibration absorber is housed in the airtight sheet, the vibration absorber cannot be moved, and as a result, the vibration absorber is arranged outside the airtight sheet. Therefore, there is a drawback in that the vibration absorber appears outside and impairs the aesthetics of the entire device.

(Object of the Invention) The present invention has been made in view of the drawbacks of the conventional example,
Firstly, the purpose is to prevent the upper and lower pedestals from being corroded by dew condensation, which has excellent durability, is lightweight, has a heat insulating effect, and causes little heat loss. Secondly, the airtight sheet can be easily attached and detached. Therefore, it is an object of the present invention to provide a vibration isolator that is extremely practical and aesthetically pleasing because the vibration absorber housed therein can be easily moved during installation and maintenance.

(Means for Solving Problems) In order to achieve the above-mentioned object, the present invention comprises: an upper pedestal (1) and a lower pedestal (2) of engineering plastic such as FRP or a composite material or metal frame using the same. It is made of a composite material whose outer periphery is coated with resin.

A number of vibration absorbers (3) selected according to the load are slidably interposed between the upper frame (1) and the lower frame (2).

A mounting groove (4) for attaching an airtight sheet is provided in the entire circumference of the upper frame (1) and the lower frame (2).

The mounting frame is fitted in the mounting groove, and the upper and lower ends of the airtight sheet (5) arranged all around between the upper pedestal (1) and the lower pedestal (2) are hermetically sealed in the mounting groove (4). Insert on top and fix.

The technical means called; is adopted.

(Operation) For example, install an anti-vibration device (A) between the cooling device (18) part and the blower device (19) part of an air conditioner (17) such as an air conditioner, and install the upper and lower mounts ( 1) Fix (2) to each.

The vibration absorber (3) of the vibration isolator (A) is appropriately moved according to the center of gravity of the cooling device (18).

An airtight sheet (5) is wound around the entire circumference between the upper pedestal (1) and the lower pedestal (2), and the upper and lower ends of the airtight sheet (5) are inserted into the mounting groove (4).

In this state, the air conditioner is operated to check the vibration isolation state. If the vibration isolation effect is insufficient, remove the airtight sheet (5) from the mounting groove (4) and move the vibration absorber (3) again. And adjust, and then refit the airtight sheet (5).

Then, the air conditioner is operated and the cool air is sent to the entire building, but a temperature difference occurs inside and outside the air conditioner while the air conditioner is operating, and the upper and lower pedestals (1) and (2) are also affected. This will cause condensation.

However, the upper mount (1) and the lower mount (2) are FR
Since it is made of engineering plastic such as P or a composite material using the same or a composite material in which the outer periphery of a metal frame is covered with resin, corrosion due to dew condensation does not occur and excellent durability is exhibited.

Further, since the upper mount (1) and the lower mount (2) are made of engineering plastic such as FRP or a composite material using the same or a composite material in which the outer periphery of a metal frame is coated with resin, the conventional iron structure is used. It is much lighter in weight than the above, and the vibration isolator (A) itself does not serve as a resonance source, and the heat insulation effect is high and there is no heat loss.

When the air conditioner is operated and cold air is passed through the airtight sheet (5), tension is applied to the attachment portion of the airtight sheet (5) due to the difference in atmospheric pressure between the inside and the outside, thereby increasing the airtightness.

(Examples) Hereinafter, examples of the present invention will be described in detail. The vibration isolator (A) comprises an upper mount (1), a lower mount (2), a vibration absorber (3) and an airtight sheet (5). The upper pedestal (1) and the lower pedestal (2) are made of an engineering plastic such as FRP or an extruded product of a composite material using the same, a die molded product or a composite material in which the outer periphery of a metal frame is covered with a resin. . The present embodiment is an example of an extrusion molded article of engineering plastic such as FRP or a composite material using the same, and the corner portions of the joining member (8) are joined together by using, for example, a rivet and an adhesive. The joint member (8) also serves as an earthquake-proof stopper, and the bolt (9) is inserted between the upper and lower joint members (8). FIG. 3 is a partially enlarged cross-sectional view of the first embodiment of the present invention, in which a mounting groove (4) is formed over the entire outer circumference of the upper mount (1) and the lower mount (2), and the mounting groove (4) is provided at the tip. The stop protrusion (10) is bulged. The mounting frame (6) has a substantially U-shaped cross section, and the short side thereof is fitted into the mounting groove (4), and the engaging ridge (11) is bulged at the tip portion thereof. There is. Further, rail protrusions (12) for mounting the vibration absorber are provided on the opposing surfaces of the upper mount (1) and the lower mount (2) over substantially the entire length. As shown in FIG. 3, in the vibration absorber (3), the lower housing (13) is fitted into the upper housing (14), and the coil spring (15) is provided between the upper housing (14) and the lower housing (13). And the fitting recess (16) on the upper surface of the upper housing (14) is slidably fitted into the rail protrusion (12) of the upper frame (1), and similarly, the lower housing The fitting recess (16) on the lower surface of (13) is slidably fitted into the rail protrusion (12) of the lower mount (2). For the airtight sheet (5), for example, two canvases are used for low pressure, and a flexible extruded sheet is used for high pressure. Further, in order to improve the airtightness when it is inserted into the mounting groove (4), the airtight sheet (5)
The packing end (7) may be provided with a packing (7), or the tip surface of the locking projection (10) may be formed of a soft material.

Then, for example, air conditioning equipment such as an air conditioner (17)
The vibration isolation device (A) is installed between the cooling device (18) part and the blower device (19) part. The vibration isolator (A) is provided with an appropriate number of vibration absorbers (3) according to the load of the cooling device (18), and the vibration absorbers (3) are fitted to the center of gravity of the cooling device (18). Move it properly along the rail ridges (12). Subsequently, the airtight sheet (5) is wound around the entire circumference between the upper pedestal (1) and the lower pedestal (2) to form the airtight sheet (5).
The upper and lower ends are inserted into the mounting groove (4) together with the mounting frame (6) and fixed. At this time, the locking ridge (10) at the opening of the mounting groove (4) and the engaging ridge (11) of the mounting frame (6) are strongly engaged with each other, and the end of the airtight sheet (5) is The part will be strongly clamped, and the airtight condition will be maintained. If higher airtightness is required, the packing (7) can be inserted to deal with higher pressure. In this state, the air conditioner is operated to check the vibration isolation state. If the vibration isolation effect is insufficient, remove the mounting frame (6) and remove the airtight sheet (5) from the mounting groove (4). The vibration absorber (3) is moved again to adjust the vibration isolation, and then the airtight sheet (5) is attached again. In this way, the optimum vibration isolation state is obtained. In this case, the vibration absorber (3) is hidden inside the airtight sheet (5) and cannot be seen from the outside, which does not impair the overall aesthetics. Further, the earthquake-proof bolt (9) functions as a stopper when an earthquake or the like occurs, and regulates the three-dimensional movement amount of the cooling device (18) front, back, left and right, and up and down. The cooling device (18) is prevented from coming out of the supportable range of the vibration absorber (3). In addition, during the above-mentioned operation, since cold air passes through the airtight sheet (5), a difference in airtightness occurs between the inside and the outside, and tension is applied to the mounting portion of the airtight sheet (5) to cause the locking projection (10). The airtight sheet (5) is strongly pressed against, resulting in high airtightness.

Incidentally, FIG. 6 shows a second embodiment of the present invention in which a flexible extrusion sheet is used for the airtight sheet (5) without using the mounting frame (6). That is, airtight sheet (5)
A barbed locking part (20) is provided at both upper and lower ends of the base, and the barbed locking part (20) is fitted into the mounting grooves (4) provided in the upper and lower mounts (1) and (2). It is supposed to be. In this case, the locking projections (10) are formed on both inner surfaces of the opening of the mounting groove (4) in order to completely engage the locking portion (20).
Is projected. In the case of such a structure, if the outer side wall forming the mounting groove (4) is bent, the attachment / detachment becomes easy.

Further, FIG. 6 shows a third embodiment of the present invention. In the case of a lump, the mounting groove (3) is opened to the outside, and the mounting frame (5) is fitted from the outside. Therefore, the vibration isolator (A) can be formed narrowly.

In the present embodiment, the description has been focused on the case where the air conditioner (17) is installed, but it is not limited to this.

(Effect) As described above, according to the present invention, the upper pedestal and the lower pedestal are formed of engineering plastic such as FRP or a composite material using the same or a composite material in which the outer periphery of the metal frame is coated with resin. For example, even if the pedestal is installed in an air conditioner such as an air conditioner and used, the upper and lower pedestals themselves are not corroded due to the dew condensation caused by the temperature difference between the inside and outside during operation,
It has the advantage of exhibiting excellent durability, in addition to FRP
Since the engineering plastic or the composite material using the same or the composite material in which the outer periphery of the metal frame is coated with resin is used, the entire prevention device becomes extremely lightweight, and as a result,
There is no need to say that the prevention device becomes a resonance source as in the past, it not only exhibits a very high anti-vibration effect, but also because the thermal conductivity is significantly worse than iron, regardless of the temperature difference between inside and outside. The heat transfer is small and the heat loss can be largely eliminated. In addition, a vibration absorber is provided between the upper and lower pedestals, and a mounting groove for attaching the airtight sheet is provided in the entire circumference of the upper and lower pedestals. Since the upper and lower ends of the airtight sheet arranged around the circumference are airtightly inserted in the mounting groove, it is easy to attach and detach the airtight sheet instead of rivet fixing as in the past. Even if the vibration absorber is installed, the vibration absorber can be easily set again, which is not only practical but also has the advantage that by installing the vibration absorber inside, the aesthetics of the entire device can be enhanced. is there. In addition, a mounting groove for attaching the airtight sheet is provided on the entire circumference of the upper and lower pedestals, and the upper and lower ends of the airtight sheet provided over the entire circumference between the pedestal and the lower pedestal are in the mounting groove. Since it is mounted in an airtight manner, cold air is blown into the airtight sheet during operation, causing a pressure difference between the inside and the outside, and as a result, tension is applied to the attachment part of the airtight sheet to improve adhesion and improve airtightness. There is also the advantage of letting it.

[Brief description of drawings]

FIG. 1 is an external front view of the usage state of the present invention. FIG. 2 is a perspective view of the first embodiment of the present invention. FIG. 3 is an enlarged sectional view of a vibration absorbing member portion of the first embodiment of the present invention. FIG. 4 ... Enlarged sectional view of the stopper portion of the present invention. FIG. 5: An enlarged sectional view of a vibration absorbing member portion of a second embodiment of the present invention. FIG. 6 is an enlarged cross-sectional view of the vibration absorber portion of the third embodiment of the present invention. (A) …… Vibration isolator (1) …… Upper frame, (2) …… Lower frame (3) …… Vibration absorber, (4) …… Mounting groove (5) …… Airtight sheet, (6)… … Mounting frame (7) …… Packing, (8) …… Joining member (9) …… Bolt, (10) …… Locking ridge (11) …… Engaging ridge, (12) …… Rail ridge (13) …… Lower housing, (14) …… Upper housing (15) …… Coil spring, (16) …… Mating recess (17) …… Air conditioner, (18) …… Cooling device (19) …… Blower, (20) …… Locking part

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masaaki Kawauchi 5-17-43 Minamitsukaguchi-cho, Amagasaki City, Hyogo Prefecture Patent Equipment Co., Ltd. (56) Bibliography Sho 63-97738 (JP, U)

Claims (3)

[Claims] 1. An upper pedestal and a lower pedestal are made of engineering plastic such as FRP or a composite material using the same or a metal frame-coated composite material coated with resin, and vibration absorption is performed between the pedestal and the lower pedestal. The tool is slidably installed, and the mounting groove for attaching the airtight sheet is recessed all around the upper and lower mounts.
Anti-vibration, characterized in that a mounting frame is fitted in the mounting groove, and the upper and lower ends of an airtight sheet that is arranged over the entire circumference between the upper frame and the lower frame are inserted and fixed in the mounting groove in an airtight manner. apparatus. 2. The vibration isolator according to claim 1, wherein an airtight sheet is provided outside the vibration absorber. 3. The vibration isolator according to claim 1, wherein a packing is provided at an end of the airtight sheet.