JPH0457935B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention is an engineering material such as FRP, which can block the transmission of vibrations at the connection part of air conditioning equipment, ensure airtightness at the same time, and has excellent heat insulation and durability. The present invention relates to a vibration isolation device made of plastic or a composite material made of plastic, or a composite material in which the outer periphery of a metal frame is coated with resin.

(Conventional technology and its problems) For example, some air conditioning equipment such as air conditioners for buildings have a cooling device part and a blower part connected to a duct installed side by side, as shown in Figure 1. However, in such cases, a vibration isolator is interposed between the cooling device and the blower, which are sources of vibration, to prevent the transmission of vibrations. However, since this kind of air conditioning equipment generates cold air inside and sends it outside through a duct, the frame materials 1 and 2 may cool due to the temperature difference between the outside air surrounding the air conditioning equipment and the outside air.
There was a problem in that the vault 13 to which the airtight sheet 4 was attached became a heat bridge, causing dew condensation on the head of the vault 13, which corroded the steel frames 1 and 2 and the vault 13 in a short period of time. Also, frame materials 1 and 2
Since it is made of iron, it is heavy, and as a result, depending on the frequency, it resonates greatly, and the vibration isolation device may actually become a source of resonance, causing problems. Furthermore, when the frame materials 1 and 2 and the vault 13 are made of iron, when used in the above-mentioned air conditioning equipment, heat conduction (heat bridge) occurs through the frame materials 1 and 2, resulting in heat loss. It was hot. In addition, in the case of the above air conditioner, the airtight sheet 4 is used during new installation or maintenance.
There are times when a worker must remove a section and enter the equipment to perform the work, and the ease of attaching and detaching the four sections of the airtight sheet leads to a reduction in work time. There was also the inconvenience that it took a lot of time to put on and take off. (Especially when the bolts are rusted) Also, if the frame materials 1 and 2 are made of iron, there is a problem that they cannot be integrally molded, which requires more man-hours for assembly, which causes an increase in costs. .

(Object of the Invention) The present invention was made in view of the drawbacks of the conventional examples, and the first object thereof is to avoid corrosion due to dew condensation, have excellent durability, be lightweight, and have a vibration isolation effect. It has an excellent insulation effect and has little heat loss.Secondly, despite its excellent airtightness, the airtight sheet is easy to attach and remove, making it easy to carry out various tasks including maintenance. It is an object of the present invention to provide an extremely practical vibration isolation device that can significantly reduce costs when integrally molded with the device.

(Means for Solving the Problems) In order to achieve the above-mentioned objects, the present invention has the following features: A pair of opposing frame members 1 and 2 are made of engineering plastics such as FRP, or a composite material using the same, or the outer periphery of a metal frame. is made of a composite material coated with resin.

A mounting groove 3 for mounting an airtight sheet 4 is recessed around the entire circumference of each of the frame members 1 and 2.

The airtight sheet 4 is disposed around the entire circumference between the frame members 1 and 2, and both ends of the airtight sheet 4 are inserted into the mounting groove 3.

; adopts technical means.

(Function) For example, the vibration isolation device A is installed between the cooling device 10 part and the blower device 11 part of the air conditioner 9, such as an air conditioner, which are installed in parallel.

The frame members 1 and 2 of the vibration isolation device A are bolted to the opening of the cooling device 10 and the opening of the blower 11, respectively.

An airtight sheet 4 is wound around the entire circumference between both frame members 1 and 2, and both ends of the airtight sheet 4 are inserted and fixed in the mounting groove 3.

When the air conditioner is operated in this state, cold air is sent into the duct through the vibration isolation device A, but since the frame members 1 and 2 are lightweight, the vibrations generated by the air conditioner at that time cause the cold air to flow into the duct. Frame material 1,
2 does not resonate, and vibrations are blocked by the airtight sheet 4, making it extremely quiet. At the same time, the heat insulating effect is high and there is no heat loss.

At this time, tension is applied to the mounting portion of the airtight sheet 4 due to the pressure difference between the inside and outside of the airtight sheet 4, thereby improving airtightness.

During maintenance, the end of the airtight sheet 4 is pulled out from the mounting groove 3, and a worker enters and exits the inside of the device through the openings of the cooling device 10 and the blower device 11. When the check of the device is completed, the airtight sheet 4 is reattached.

Further, when the air conditioner is operated to send cold air throughout the building, a temperature difference occurs between the inside and outside of the air conditioner while the air conditioner is in operation, and dew condensation also occurs on the frame members 1 and 2.

However, since the frames 1 and 2 are made of engineering plastics such as FRP, composite materials using them, or composite materials in which the outer periphery of the metal frame is coated with resin, corrosion due to dew condensation does not occur and they have excellent durability. demonstrate.

Note that this vibration isolation device A is not only installed in air conditioning equipment such as an air conditioner, but is also used in connecting parts of ducts in buildings.

(Example) Examples of the present invention will be described in detail below.

The vibration isolation device A is composed of a pair of frame members 1 and 2 and an airtight sheet 4. Both frame members 1 and 2 are made of engineering plastics such as FRP, a composite material using the same, or a composite material in which the outer periphery of a metal frame is coated with resin, and is manufactured by integral molding using extrusion molding or die molding. In the case of integral molding, it is possible to reduce assembly man-hours, resulting in significant cost reductions. The present embodiment is an example of extrusion molding, and the corner portions are joined by a joining member 8 using, for example, a combination of rivets and an adhesive. FIG. 3 is a partially enlarged sectional view of the first embodiment of the present invention, in which a mounting groove 3 is formed over the entire outer periphery of both frame members 1 and 2, and a locking protrusion 7 is provided at the tip. is bulging out. The mounting frame 5 has a substantially U-shaped cross section, and its short side is fitted into the mounting groove 3, and an engaging protrusion 8 is bulged at its tip. For the airtight sheet 4, for example, a two-sheet canvas is used in the case of low pressure, and a flexible extruded sheet or the like is used in the case of high pressure. In addition, a gasket 6 is provided at the insertion end of the airtight sheet 4 to improve airtightness when it is inserted into the mounting groove 3.
Alternatively, in order to improve the airtightness of the airtight sheet 4, the surface of the locking protrusion 7 may be formed of a soft material.

Therefore, for example, a vibration isolation device A is installed between a cooling device 10 and a blower device 11 of an air conditioner 9 such as an air conditioner, which are arranged side by side, and the frame members 1 and 2 are bolted to each opening. do. Next, both frame materials 1 and 2
An airtight sheet 4 is wound around the entire circumference in between, and the ends of the airtight sheet 4 are inserted into the mounting groove 3 together with the mounting frame 5 and fixed. At this time, the locking protrusion 7 of the opening of the mounting groove 3 and the engagement protrusion 8 of the mounting frame 5 strongly engage with each other and strongly clamp the end of the airtight sheet 4.
It will be kept airtight. If even higher airtightness is required, it is possible to cope with higher pressure by inserting a packing 6 or by forming the surface of the locking protrusion 7 to be soft. FIG. 6 shows a second embodiment of the present invention, in which a flexible extruded sheet is used as the airtight sheet 4 without using the mounting frame 5. That is, the two ends of the airtight sheet 4 are provided with bell-shaped locking parts 12, and both the frame members 1, 2
This dovetail-shaped locking part 1 is attached to the mounting groove 3 provided in the
2 is fitted in. in this case,
In order to completely engage the locking portion 12, locking protrusions 7 are provided protruding from both inner surfaces of the opening of the mounting groove 3. In the case of such a structure, attachment and detachment can be facilitated by bending the outer side wall forming the attachment groove 3.

Further, when a pressure difference occurs between the inside and outside of the airtight sheet 4, the locking portion 12 strongly engages with the locking protrusion 7, greatly improving airtightness.

Further, FIG. 6 shows a third embodiment of the present invention, in which the mounting groove 3 is opened outward, and the mounting frame 5 is fitted from the outside, so that the vibration isolating device A The width of can be made thinner.

In this embodiment, the case where the installation is installed in the air conditioning equipment 9 has been mainly explained, but it is of course not limited to this, and it is also possible to use it to connect a normal air conditioning duct, and in that case, as described above. It is possible to obtain a certain effect.

(Effects) As described above, in the present invention, both frame members are made of engineering plastics such as FRP, a composite material using the same, or a composite material in which the outer periphery of the metal frame is coated with resin. It is said that when a vibration isolation device is installed and used in air conditioning equipment such as an air conditioner, the frame material itself will not corrode due to condensation caused by temperature differences inside and outside during operation, and exhibits excellent durability. In addition, since it is made of engineering plastics such as FRP and composite materials using them, the entire vibration isolation device is extremely lightweight.
As a result, the vibration isolation device does not become a source of resonance like in the past, and not only does it have a very high vibration isolation effect, but it also has much worse thermal conductivity than iron, so the internal and external temperatures are lower. Despite the difference, heat transfer is small and heat loss can be largely eliminated. Furthermore, a mounting groove for attaching an airtight sheet is formed around the entire circumference of both frame materials, and both ends of the airtight sheet placed between both frame materials are inserted airtight into the mounting groove. Since the airtight sheet is attached, it is not fixed with rivets or bolts as in the past, but it is easy to attach and remove the airtight sheet.In addition to being very practical, it is very easy to attach and remove the airtight sheet during maintenance. Since it is easy to attach and detach, it is easy to replace it with an airtight sheet of a different width, and the interval between the connecting parts can be easily adjusted. Furthermore, when a pressure difference occurs between the inside and outside of the airtight sheet during operation, tension is applied to the insertion portions at both ends of the airtight sheet, improving the degree of adhesion between the frame material and the airtight sheet, and greatly increasing airtightness. In addition, if the frame material is integrally molded, assembly man-hours can be reduced.
It has the advantage of being able to significantly reduce costs.

[Brief explanation of drawings]

FIG. 1: An external perspective view of the present invention in use. Second
Figure: A perspective view of the first embodiment of the present invention. FIG. 3: A partial enlarged sectional view of the first embodiment of the present invention. FIG. 4: An enlarged sectional view of a corner portion of the present invention. FIG. 5: A partially enlarged sectional view of a second embodiment of the present invention. FIG. 6: A partially enlarged sectional view of a third embodiment of the present invention. FIG. 7...An enlarged sectional view of the fixed portion of the conventional airtight sheet. A... Vibration isolation device, 1, 2... Frame material, 3... Mounting groove, 4
...Airtight sheet, 5...Mounting frame, 6...Putskin, 7...
Locking protrusion, 8... Engagement protrusion, 9... Air conditioning equipment, 1
0...Cooling device, 11...Blower device, 12...Locking part.

Claims (1)

[Scope of Claims] 1 A pair of opposing frame members are formed of engineering plastics such as FRP, a composite material using the same, or a composite material in which the outer periphery of a metal frame is coated with resin,
A mounting groove for attaching the airtight sheet is recessed around the entire circumference of each frame material, and it is arranged between each frame material over the entire circumference, and both ends of the airtight sheet are inserted into the mounting groove. Features a vibration isolation device. 2. The vibration isolating device according to claim 1, wherein the end portion of the airtight sheet is fixed by fitting a mounting frame into the mounting groove. 3. The vibration isolation device according to claim 1, characterized in that a gasket is provided at the end of the airtight sheet.