JPH0572597U - Insulator for engine room - Google Patents

Abstract

(57) [Abstract] [Purpose] In an engine room insulator that is mounted on the panel surface in the engine room, it has a good fit to the panel surface, improves workability, and is easy and inexpensive to manufacture. It is intended to provide an engine room insulator. [Structure] Support members 20 and 50 each having a frame shape or a lath structure along the inner surface shape of a suspension mounting strut panel 2 of an engine room E, and a flat member attached to the support members 20 and 50 and shaped into a predetermined shape. An engine room insulator including a sound absorbing material 30.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an engine room insulator.

[0002]

[Prior Art]

 In general, the engine room insulator is designed to absorb noise from the main engine and auxiliary equipment installed in the engine room, and to reduce the level of noise propagated inside or outside the vehicle compartment as much as possible. Has been done.

FIG. 4 shows a configuration inside the engine room E. Suspension mounting strut panels 2 are provided above the front wheel house panels 1 of both sides in the engine room E. An insulator 3 made of a sound absorbing material such as glass wool, felt, or non-woven fabric is attached to the panel surface of No. 2 by a clip or the like.

As shown in FIG. 5, the insulator 3 is formed into a desired three-dimensional shape by thermocompression molding between a lower press die 4 and an upper press die 5, but in particular, There was a problem that a lot of breaks occurred in the portion indicated by A in the figure where the press pressure was hard to be applied during the less molding.

As a countermeasure against this, there is a method in which it is formed into an expanded shape as shown in FIG. 6 and is attached so that both sides are moved to the center side during attachment work so as to be in close contact with the surface of the strut panel 2, and also as shown in FIG. As described above, a method has been tried in which the insulator 3 is divided into two parts with the central part as a boundary, and the insulator 3 is attached to the panel 2 surface after being assembled via a fixing tool such as the tacker 6.

[0006]

[Problems to be solved by the device]

 However, even in the countermeasures shown in FIGS. 6 and 7, for example, when it is formed into a developed shape as shown in FIG. 6, the mounting workability is poor because the suspension mounting strut panel 2 does not have a fitting property to the surface. Has been pointed out.

Further, in the case of the two-part configuration shown in FIG. 7, since it is assembled via the fixing tool 6 such as a tucker, there is a problem that the cost of the product increases.

Further, since the insulator 3 needs to be thermocompression-molded in both of them, the processing time is long, the product yield is poor, the raw material is inconvenient, and a large amount of scrap material is generated. Problems such as a large amount of material loss have been pointed out.

The present invention has been made in view of such circumstances, and an object of the present invention is to mount a roller on a complicated panel surface shape such as a suspension mounting strut panel in an engine room. It is an object of the present invention to provide an insulator for an engine room, which has good adhesion to a panel surface, excellent mounting workability, material loss, and can be easily and inexpensively manufactured.

[0010]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention provides an engine room insulator mounted on the surface of a suspension mounting strut panel in an engine room, wherein the insulator is a support member formed of a molded body conforming to the inner surface shape of the strut panel. It is characterized in that it is composed of a flat sound absorbing material attached to this support member and held in the shape of the support member, and most of the surface of the sound absorbing material faces the inside of the engine room.

[0011]

[Action]

 As is apparent from the above structure, the engine room insulator according to the present invention is composed of a support member such as a frame body or a lath structure and a flat sound absorbing material, and therefore, the conventional sound absorbing material is used. Since there is no need to thermo-press molding, the product yield is improved and the generation of scrap material is reduced.

Further, since the support member is preformed along the inner surface shape of the strut panel, if a flat sound absorbing material is attached to this support member, the flat sound absorbing material will follow the surface shape of the support member. Since the shape is formed, the fittability to the panel surface is improved.

[0013]

【Example】

 Hereinafter, embodiments of an engine room insulator according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is an exploded perspective view showing a structure of an engine room insulator according to a first embodiment of the present invention, and FIG. 2 is a perspective view showing a state in which the engine room insulator is attached to the engine room. FIG. 3 is an exploded perspective view showing a structure of an engine room insulator which is a second embodiment of the present invention.

First, referring to FIGS. 1 and 2, an insulator 10 according to the present invention is mounted on an inner surface of a suspension mounting strat panel 2 located above a wheel house panel 1 in an engine room E.

The insulator 10 is a frame-shaped support member 20 formed to match the inner surface shape of the suspension mounting strut panel 2, and is attached to the support member 20 so as to extend along the inner surface of the strut panel 2. The sound absorbing member 30 is a flat sound absorbing member 30 which is shaped to be substantially flat.

In this embodiment, the frame-shaped support member 20 is configured to have a desired curved surface shape by press-molding a strip-shaped metal plate, but an injection-molded product of synthetic resin is used. Good.

As the sound absorbing material 30, a semi-cure felt impregnated with a thermosetting resin is used. However, glass wool may be used. Nonwoven fabrics 31 and 32 having water repellency are attached.

Further, in order to make the sound absorbing material 30 easily conform to the shape of the support member 20, slits 33 are provided at appropriate places as shown in the figure.

Then, after attaching the flat sound absorbing material 30 to the support member 20 and fixing and assembling them by the tacker 11 or the like, the panel is placed along the suspension mounting strut panel 2 surface. After inserting the mounting bolt 3 welded and fixed to the predetermined portion 2 into the mounting hole 12 of the insulator 10, the clip 10 is press-fitted to the tip of the mounting bolt 3 so that the insulator 10 is suspended. The mounting strut panel 2 can be securely mounted on the inner surface.

At this time, since the insulator 10 conforms to the shape of the suspension mounting strut panel 2 surface, it has an extremely good fitting property, excellent mounting workability, and a good appearance.

Further, since most of the surface of the sound absorbing material 30 faces the engine room E, the support member 20 does not hinder the sound absorbing performance.

Further, since the insulator 10 according to the present invention uses the flat sound absorbing material 30, the productivity and the yield are remarkably improved as compared with the conventional molded sound absorbing material by the thermocompression molding which takes a very long time. Also, the amount of scrap material is small and there is little material loss.

In addition, since the peripheral edge of the insulator 10 is held by the support member 20, the rigidity is increased and the appearance of the peripheral edge portion is also improved by the support member 20.

Moreover, by imparting rigidity to the support member 20, the thickness of the sound absorbing material 30 can be set to be thick, so that there is also an effect that the sound absorbing performance can be improved.

The sound absorbing material 30 may be fixed to the surface of the suspension mounting strut panel 2 with an adhesive.

Next, FIG. 3 shows a second embodiment of the insulator 10 according to the present invention. The same parts as those of the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

In the second embodiment, a lath structure such as a metal lath is used as the support member 50 of the insulator 10.

Therefore, the support member 50 made of the lath structure is formed along the inner surface of the suspension mounting strut panel 2 by press molding or injection molding, and the flat sound absorbing material 30 is formed on the support member 50. Like the above-described embodiment, the insulator 10 with the attached has a good fit property to the panel 2 surface, and since the conventional thermocompression molding is unnecessary, productivity and yield are improved. In addition to the expectation, since the support member 50 made of the lath structure is used in this embodiment, the porous structure allows most of the surface of the sound absorbing material 30 to face the inside of the engine room E and achieves good sound absorbing performance. In addition, the sound absorbing material 30 is not frayed, and the durability of the insulator 10 is improved as compared with the above-described embodiments. There is an advantage of doing.

[0030]

[Effect of the device]

 As described above, the engine room insulator according to the present invention has the following special operational effects.

(1) Since the support member having a frame shape or a lath structure is molded along the inner surface shape of the suspension mounting strut panel, when the insulator is mounted on the panel, it fits to the panel surface. And has the effect of significantly improving mounting workability.

(2) Since a flat sound absorbing material is attached to the formed support member, the sound absorbing material is not thermocompressed as in the conventional case, so that the productivity and the yield are significantly improved. In addition, the amount of mill ends is small and the material loss is small.

(3) Since it is not necessary to give the sound absorbing material shape-retaining properties as in the past, the appearance and rigidity of the terminal portion can be enhanced by the support member, so that the appearance is improved and the thickness of the sound absorbing material is set thick. Therefore, there is an effect that the sound absorbing performance can be improved.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a configuration of a first embodiment of an engine room insulator according to the present invention.

FIG. 2 is a perspective view showing a state in which the engine room insulator shown in FIG. 1 is installed in the engine room.

FIG. 3 is an exploded perspective view showing the configuration of a second embodiment of the engine room insulator according to the present invention.

FIG. 4 is a perspective view showing a conventional engine room insulator installed in the engine room.

5 is a cross-sectional view showing a press-molded state of the engine room insulator shown in FIG.

FIG. 6 is a sectional view showing a configuration of a conventional engine room insulator.

FIG. 7 is a cross-sectional view showing a configuration of a conventional engine room insulator.

[Explanation of symbols]

 1 Wheelhouse Panel 2 Strut Panel for Mounting Suspension 3 Mounting Bolt 10 Insulator for Engine Room 20,50 Support Member 30 Sound Absorbing Material 31,32 Nonwoven Fabric 33 Slit 40 Clip

Claims (4)

[Scope of utility model registration request] 1. An engine room insulator (10) mounted on a surface of a suspension mounting strut panel (2) in an engine room (E), wherein the insulator (10) follows a shape of an inner surface of the strut panel (2). A support member (20, 50) made of a molded body and this support member (20, 5)
0) and a flat sound absorbing material (30) which is held in the surface shape of the support member (20, 50), and most of the surface of the sound absorbing material (30) is in the engine room (E). An engine room insulator characterized by being exposed inside. 2. The insulator for an engine room according to claim 1, wherein the support member (20) is composed of a frame body along the periphery of the insulator (10). 3. The engine room insulator according to claim 1, wherein the support member (50) is made of a lath structure. 4. The sound absorbing material (30) is composed of a bulky fibrous body containing a thermosetting resin, and has nonwoven fabrics (31, 32) attached to the front and back surfaces thereof. An engine room insulator according to item 1, 2 or 3.