JPH072331Y2 - Automotive insulator dash - Google Patents

Description

[Detailed Description of the Invention] << Industrial Application Field >> This invention relates to an insulator dash for an automobile, and can be commonly used even in the specifications in which the shapes of the through holes through which the clutch master cylinder, the clutch cylinder and the like penetrate are different. The improvement of the insulator dash for automobiles.

<< Prior Art >> As is well known, various insulators are set in a vehicle interior in order to maintain quietness in the vehicle interior.

For example, as shown in FIG. 6, the vehicle insulator dash 1 is provided on the interior side surface of a dash panel (not shown) in front of the front seat so as to prevent noise and vibration of the engine from the engine room from being transmitted to the interior of the vehicle. It is attached to and fixed to.

And this insulator dash 1 is usually PVC
It is made of a high-density sound-insulating material such as a sheet or rubber sheet, and a sound-absorbing material layer such as felt or urethane foam for maintaining the above-mentioned clearance is inserted on the back surface, or the back surface of the sound-insulating material. A rib of a certain size is provided on the side so as to obtain a desired double wall sound insulation effect between the rib and the dash panel.

By the way, the insulator dash 1 needs an opening for penetrating a dash panel such as a clutch master cylinder or a clutch cylinder to penetrate a component extending between the engine room and the vehicle compartment.
There are two types, one with a large opening for penetrating a relatively large-diameter clutch master cylinder and the other with multiple small openings for penetrating the clutch cylinder. In order to form an opening for the clutch master cylinder, as shown in FIG. 7, a slit 2 along a large-diameter circular shape is formed through a non-continuous portion, because a molding die of On the other hand, the slit 3 for opening a small-diameter opening for penetrating the clutch cylinder is provided in this large-diameter circle also through the discontinuous portion.

Then, in the type in which the clutch master cylinder is inserted, the cutting process is performed along the slit 2 along the large-diameter circular shape to form the large-diameter opening, and the type which is required by the small-diameter clutch cylinder. In the actual case, the cutting process is performed along the slit 3 along the circular shape of the small diameter to form the opening of the small diameter so that the insulator dash 1 is commonly used.

<Problems to be solved by the invention> However, there is no problem when cutting a slit along a large-diameter circular shape to open the opening for the clutch master cylinder, but a small-diameter circular shape for opening the opening for the clutch cylinder. When cutting the slit along
External force is also applied to the slit along the large-diameter circular shape, and the work of cutting only the slit along the small-diameter circular shape is extremely troublesome.

Therefore, it has been pointed out that the efficiency of the work for forming the opening is remarkably lowered and the sealing property is lowered by erroneously cutting an unnecessary portion.

The present invention has been made in view of the above circumstances, and an object of the present invention is to form a small through hole so that it can be commonly used for both a clutch master cylinder specification and a clutch cylinder specification. In an insulator dash for automobiles, each of which is provided with a non-continuous slit portion and a non-continuous slit portion for forming a large-diameter through hole on the outer periphery of each of them, and cuts the non-continuous slit portion on only one side When cutting a non-continuous slit portion for forming a small through-hole, a cutting process can be performed quickly and easily without adversely affecting the non-continuous slit portion for forming a large through-hole on the outer circumference of the non-continuous slit portion. The purpose is to provide an insulator dash for automobiles that is designed to be carried out.

<Means for Solving the Problem> In order to achieve the above object, the present invention provides a sound insulation material on the interior side surface of a dash panel that separates an engine room and a vehicle interior through an air layer or a sound absorbing material layer. ,And,
In order to selectively open large-sized through-holes and small-sized through-holes through which the sound-insulating material penetrates through shafts, harnesses, etc., discontinuous slits for forming small-sized through-holes and their outer circumferences are formed. Each of the discontinuous slits for forming the large through-hole is provided, and either one of the large through-hole and the small through-hole is selectively cut by cutting the discontinuous slit on either side. In an automotive insulator dash that can be used, with respect to the thickness of the non-slit portion between the slits for forming the large through-hole, the thickness of the non-slit portion between the slits for penetrating the small through-hole, It is characterized by being set thin.

<Operation> As is apparent from the above-described configuration, for example, the thickness of the non-slit portion between the slits for forming the small through hole to be the clutch cylinder through hole is set to the large through hole on the outer periphery thereof. By making the inside of the slits thinner than the thickness of the non-slit part, when opening a small through hole, the non-slit part of the large through hole is not accidentally cut, and only the small through hole is opened. It can be cut easily and quickly.

<< Embodiment >> An embodiment of an automotive insulator dash according to the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 is an overall view of an automobile insulator dash according to the present invention and an enlarged perspective view of a main part thereof, and FIGS. 2 and 5 are cross-sectional views of the main part.

Referring to FIG. 1, an insulator dash 10 for an automobile according to the present invention has a sound absorbing material 12 such as a felt attached to the back surface of a sound insulating material 11 having a relatively high surface density such as a PVC sheet or a rubber sheet, and an engine room and a vehicle. A dash panel (not shown) for partitioning the room is attached and fixed on the inner side surface of the room, and is configured to obtain a desired sound insulation effect by the double wall sound insulation effect of the dash panel and the sound insulation material 11.

Further, as shown in an enlarged manner in FIG. 1, at a place where the clutch is mounted, a slit 13 for forming an opening for the clutch master cylinder is along a large-diameter circular shape and a non-slit portion 14 is interposed. The slits 15 are discontinuously provided, and the same slits 15 for forming clutch cylinder openings are also discontinuously provided at three positions inside the slits through the non-slit portions 16.

Further, in FIGS. 2 and 3, FIG. 2 shows a non-slit portion 14 along a large diameter circular shape, and FIG. 3 shows a slit 13 portion along a large diameter circular shape.

On the other hand, FIG. 4 shows the non-slit portion 16 along the small diameter circular shape, and FIG. 5 shows the slit 15 portion along the small diameter circular shape.

That is, as is clear from FIGS. 2 and 4, the thickness of the non-slit portion 16 along the small-diameter circular shape is set thinner than the thickness of the non-slit portion 14 along the large-diameter circular shape.

Accordingly, for example, when the insulator dash 10 of the present application is applied to the clutch cylinder specification type by opening three openings of the clutch cylinder, the slit 15 along the small circular shape forming the opening for the clutch cylinder is cut. In doing so, since the non-slit portion 16 is set to be thin, the cutting work can be performed easily and quickly, and the non-slit portion 14 along the large-diameter circular shape that becomes the clutch master cylinder opening is accidentally cut. There is no such thing.

On the contrary, in the case of the clutch master cylinder specification, there is no problem because the non-slit portion 16 along the small-diameter circular shape which becomes the opening for the clutch cylinder becomes an end material even if it is cut first.

In this example, the sound absorbing material 12 is installed on the back surface side of the sound insulation material 11.However, a spacer rib is projected on the back surface side of the sound insulation material 11, and the clearance between the dash panel and the sound insulation material 11 is determined by the dimension height of the spacer rib. The present application may be applied to an insulator dash having a configuration for maintaining the above.

<Effect> As described above, in the vehicle insulator dash according to the present invention, a discontinuous slit portion for forming a small through hole is formed so that it can be commonly used for both clutch master cylinder specifications and clutch cylinder specifications. , In the insulator dash for automobiles, in which discontinuous slit portions for forming large through holes are provided on their outer circumferences, and the discontinuous slit portion on only one side is cut, especially for clutch cylinders In the work of opening a small through-hole such as an opening, the non-slit part between the slits forming the small through-hole is set to be thin so that the cutting work of this non-continuous slit part can be performed very easily and quickly, and the work efficiency can be improved. Is significantly improved.

Furthermore, when cutting the discontinuous slit portion of the small through hole, there is no risk of accidentally cutting the discontinuous slit portion for forming the large through hole, and the effect of preventing the occurrence of defective products There is also.

[Brief description of drawings]

FIG. 1 is a front view showing the whole and a main part of an automobile insulator dash according to the present invention, FIG. 2 is a sectional view taken along line II-II in FIG. 1 showing a non-slit portion, and FIG. 1 is a sectional view taken along line III-III, FIG. 4 is a sectional view taken along line IV-IV in FIG. 1 showing a non-slit portion, and FIG. 5 is a sectional view taken along line VV in FIG. FIG. 6 is an overall view showing an automobile insulator dash that can be commonly used for both clutch master cylinder specifications and clutch cylinder specifications, and FIG. 7 is a partially enlarged view showing a slit shape of a clutch mounting portion in the automobile insulator dash. . 10 …… Insulator dash for automobile 11 …… Sound insulation material 12 …… Sound absorption material 13,15 …… Slit part 14,16 …… Non-slit part

Claims (1)

[Scope of utility model registration request] 1. A sound insulation material is installed on an interior side surface of a dash panel for partitioning an engine room and a vehicle interior through an air layer or a sound absorbing material layer, and the sound insulation material has a shaft,
Large through-holes are formed around the discontinuous slits for forming small through-holes so that large-sized through-holes and small-sized through-holes that penetrate the through-holes of harnesses, etc. can be selectively opened. The vehicle is provided with discontinuous slit portions for cutting, and by cutting the discontinuous slit portion on either side, either the large through hole or the small through hole can be selectively used. In the insulator dash for use, the thickness of the non-slit portion between the slits for penetrating the small through hole is set to be thin with respect to the thickness of the non-slit portion between the slits for forming the large through hole. Insulator dash for automobiles.