JPS59199243A - Vibration damping heat-insulating material - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vibration-proof and heat-insulating material, and particularly to a vibration-proof and heat-insulating material suitable for use in vehicles having a vibration source and a heat source.

In automobiles, the engine that is the power source generates vibration and heat as it converts energy, and is also a source of vibration and heat, so the vibration and heat generated by the engine may adversely affect other devices such as air cleaners. The vibrations cause the outer panels of the engine case, bonnet, etc. to resonate and generate noise.

To prevent such problems from occurring, it is necessary to take anti-vibration and heat insulation measures on the outer panels of the engine itself or other equipment.
A satisfactory solution to this problem has not yet been obtained.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a vibration-proofing and heat-insulating material that has a simple structure and can obtain excellent vibration-proofing and heat-insulating effects.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

In FIG. 1, numeral 1 is a molded fiber material that forms a fiber layer and serves as the base material of the vibration-proof and heat-insulating material. One piece is cut to an appropriate length, mixed and spread, and then laminated into layers. The resulting cotton-like fibers are pressed and needled with rollers to form a mat-like fiber sheet, which is then coated with water glass, etc. It is obtained by applying or impregnating an inorganic binder and then pressurizing and firing. One surface of the molded fiber material 1 (
A soft material layer 2 is formed in a layered manner on the outer surface. This soft material layer 2 is formed by impregnating or pasting a fluid rubber such as butyl rubber, a soft resin such as vinyl chloride, polyethylene, or silicone, or a soft material in the form of tar pitch or resin putty on the surface of the molded fiber material 1. can get.

The molded miscellaneous material 1 may be made of only one of glass long fibers, organic long fibers, and inorganic long fibers, or may be made of an appropriate combination thereof. Examples of organic long fibers include polyester, vinyl chloride, etc., and examples of inorganic long fibers include Relamiku. By using organic long fibers, the specific gravity of the fibers themselves is low, so the specific gravity of the fiber material 1 as a whole can be reduced, and the compatibility with the soft material layer 2 to be attached is improved, so that the molded miscellaneous material 1 and the soft The connection with the Bogetsu device is firmly established.

In this way, the vibration-proofing and heat-insulating material 3 made of a fiber layer (molded fiber material 1) and a soft material layer is constructed such that the soft material layer 2 is placed on the inner or outer surface of the outer panel 4 made of metal or hard resin. The vibration-proof and heat-insulating structure is constructed by adhering or attaching the parts by baking, etc.

According to the vibration-proof and heat-insulating structure having such a configuration, the soft material layer 2 attached to the inner or outer surface of the outer panel 4 has a damping effect that suppresses the sound and resonance of the outer panel 4, so that a vibration-proofing effect can be obtained and Since the molded fiber material 1 (ili fiber layer) has a sound absorbing effect due to the glass fibers and a transmitted sound blocking effect in conjunction with the soft material layer 2 and the outer panel 4, a soundproofing effect can also be obtained. The soundproofing effect of this inner surface can be controlled by varying the thickness and density of the fiber layer. Furthermore, since glass fibers have a sound-absorbing effect and a heat-insulating effect, a heat-insulating effect can also be obtained. In addition, as shown in FIG. 2, for example, two laminated units consisting of a fiber layer and a soft material layer (
By stacking them (three or more may be used), the vibration-proofing, sound-proofing, and heat-insulating effects can be further improved.

As the outer panel 4, for example, as shown in FIGS. 3 to 5, an automobile bonnet 5, an engine power bar 6, and an air cleaner case 7 are used, and the inner or outer surfaces of these are provided with anti-vibration heat insulating material. Vibration-proof and heat-insulating structures can be easily constructed by simply pasting 3.

FIG. 6 shows another embodiment of the present invention. In this embodiment, in addition to the vibration-proofing and heat-insulating material shown in FIG. It has a configuration in which a metal sheet 8 such as a sheet is pasted. According to this configuration, it is possible to prevent scattering of fibers in the fiber diagram, maintain initial performance over a long period of time, and further improve heat resistance and heat resistance.

FIG. 7 shows yet another embodiment of the present invention. In this embodiment, in addition to the vibration-proof and heat-insulating material shown in FIG. , Soft Material A soft material layer 9 is formed by a method similar to that shown in FIG. According to this configuration, the scattering of the fibers Q) of the fiber layer can be prevented as in the above embodiment, the initial performance can be maintained over a long period of time, and the vibration damping properties can be further improved.

Note that the present invention is not limited to application to vibration-proof and heat-insulating structures in automobiles.

As explained above, according to the present invention, long glass fibers,
At least one of organic long fibers and inorganic long fibers is mixed in a cotton-like form and formed into a mat-like form, and a soft material layer is formed in a layered manner on one surface of the Iζ fiber layer, and the fibers are passed through the soft material layer. Since the layer is attached to the outer panel, a vibration-proof and heat-insulating material with a simple structure and excellent vibration-proofing, sound-proofing, and heat-insulating properties can be obtained. Additionally, in addition to the vibration-proofing and heat-insulating material, a metal foil or soft material layer is provided on the other surface of the fiber layer, which prevents the fibers from scattering and maintains the initial performance over a long period of time. This will allow you to improve your sexuality.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing one embodiment of the present invention, and FIG.
3, 4 and 5 are sectional views showing a modification of the embodiment shown in FIG. FIG. 7 is a sectional view showing still another embodiment of the present invention. Explanation of symbols of main parts 1...Molded fiber side 2.9...Soft material layer 4...Outer panel 8...Metal foil applicant Honda Gijutsu rtllT Gyo Co., Ltd. Nakagawa Sankei Co., Ltd. Agent Patent Attorney Motohiko Fuji41

Claims (3)

[Claims] (1) A vibration-proofing and heat-insulating material for an outer panel placed near a vibration source and/or a heat source, consisting of long glass fibers mixed in a cotton-like manner;
It consists of a fiber layer made of at least one of organic long fibers and inorganic long fibers, and a soft material layer formed in a layered manner on one surface of the fiber layer, and the fiber layer is formed through the soft material layer. A vibration-proof and heat-insulating material is attached to the outer panel. (2) The vibration-proof and heat-insulating material according to claim 1, characterized in that a plurality of laminated units each consisting of the fiber layer and the soft material layer are laminated. (3) Vibration-proofing and heat-insulating material for the outer panel placed near the vibration source and/or heat source, consisting of long glass fibers mixed in a cotton-like form;
A fibrous layer consisting of at least one of organic long fibers and inorganic long fibers, a soft material layer formed in a layered manner on one surface of the fibrous layer, and a metal adhered to the other surface of the fibrous layer. 1. A vibration-proof and heat-insulating material comprising a foil, wherein the fiber layer is attached to the outer panel via the soft material layer. (4) Vibration-proofing and heat-insulating material for the outer panel placed near the vibration source and/or heat source, consisting of long glass fibers mixed in a cotton-like manner,
It consists of a fibrous layer made of at least one of organic long fibers and inorganic long fibers, and first and second soft material layers formed in layers on both surfaces of the fibrous layer, and the fibrous layer A vibration-proof and heat-insulating material, characterized in that it is attached to the outer panel through a first or second soft material layer.