WO2012176560A1

WO2012176560A1 - Insulator mounting structure for automobile

Info

Publication number: WO2012176560A1
Application number: PCT/JP2012/062492
Authority: WO
Inventors: 秀章駒井; 加藤　彰
Original assignee: トヨタ車体株式会社
Priority date: 2011-06-20
Filing date: 2012-05-16
Publication date: 2012-12-27
Also published as: JP2013001299A; CN103648892A

Abstract

An insulator (40) mounting structure for an automobile is provided with a hood (20) for the automobile and also with a sheet-like insulator (40) which is mounted so as to be superposed on the inner side of the hood (20). The hood (20) and the insulator (40) have cut-and-raised portions (33, 43) cut and raised toward the superposing surfaces at which the hood (20) and the insulator (40) are mounted together. A cut-and-raised portion (33, 43) is relatively moved along the direction of the superposing surfaces of the hood (20) and the insulator (40) and is fitted in a space formed by the shape of the other cut-and-raised portion (43, 33). Either one and/or the other of the cut-and-raised portions (33, 43) has a front end (33b, 43b) fitted up to a position on the rear surface of the base end (43d, 33d) of the other cut-and-raised portion (43, 33).

Description

Insulator mounting structure for automobile

The present invention relates to an insulator mounting structure in which sheet-like insulators are stacked and mounted on a hood of an automobile.

As disclosed in Japanese Utility Model Publication No. 62-74079, a seat-like insulator functioning as a sound absorbing material is attached to the inner surface of the hood that covers the upper side of the engine room of a conventional automobile, and is generated from the engine. The sound to be absorbed is absorbed by the insulator.

In a general insulator mounting structure as shown in FIG. 10, the hood 90 is configured by bonding an outer panel 91 and an inner panel 92 together. A mounting claw 93 is provided on the inner panel 92, and an edge of the insulator 94 is hooked on the mounting claw 93 of the inner panel 92. Each of the inner panel 92 and the insulator 94 is provided with

mounting holes

95 and 96 at positions corresponding to each other, and the clip 97 is communicated with the

corresponding mounting holes

95 and 96 of the inner panel 92 and the insulator 94. An insulator 94 is attached to the inner panel 92 of the hood 90.

However, the mounting structure shown in FIG. 10 described above is expensive because a large number of separate clips 97 are required for mounting the insulator 94. Therefore, it is desired to reduce the manufacturing cost by using a separate part such as a clip or by reducing the number of the parts so that the insulator can be attached to the hood.

According to one aspect of the present invention, an insulator mounting structure for an automobile includes a hood of the automobile and a sheet-shaped insulator attached to the inside of the hood. The hood and the insulator have a cut-and-raised part that is cut and raised toward each other as an attachment point. The cut-and-raised part moves relatively in the direction along the overlapping surface of the hood and the insulator, and fits into the space formed by the shape of the other cut-and-raised part. At least one cut-and-raised portion has a distal end portion that is fitted to the back surface position of the base end of the other cut-and-raised portion. Accordingly, the number of separate parts such as clips for attaching the insulator to the hood can be reduced, and the manufacturing cost can be reduced.

It is a perspective view of the insulator which removed from the hood and hood which concern on this embodiment. It is a perspective view of the insulator which attached to the hood and hood which concern on this embodiment. It is an expansion perspective view of the attachment location corresponding to each other of the hood and the insulator removed from the hood. It is sectional drawing of the attachment location before making a hood and an insulator slide relatively. It is sectional drawing of the attachment location in the middle of sliding the hood and an insulator relatively. It is sectional drawing of the attachment location after making the food | hood and an insulator slide relatively. It is a top view which shows the attachment location corresponding to FIG. It is a top view which shows the attachment location corresponding to FIG. It is a top view which shows the attachment location corresponding to FIG. It is a perspective view which shows the attachment structure of the conventional insulator.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. In the present embodiment, an insulator 40 is attached in an overlapping manner inside the hood 10 of the automobile. FIG. 1 shows a hood 10 and an insulator 40 according to the present embodiment in a detached state. FIG. 2 shows the hood 10 and the insulator 40 according to the present embodiment in an attached state. The hood 10 according to the present embodiment is a so-called minivan type automobile hood that has a shape that is short in the vehicle longitudinal direction and elongated in the vehicle width direction.

The hood 10 is configured by bonding an outer panel 20 and an inner panel 30 as shown in FIG. Both the outer panel 20 and the inner panel 30 are plate-like members. The insulator 40 is attached with its back surface overlapped with the surface of the inner panel 30. In the inner panel 30 and the insulator 40, locations (attachment locations) fixed to each other for attachment are set.

The inner panel 30 has a shape having an opening corresponding to the shape of the insulator 40 which is a mating member. As shown in FIG. 1, the opening of the inner panel 30 is divided into three portions in the vehicle width direction by bridging portions 31 provided at two places on the left and right sides in the vehicle width direction.

The inner panel 30 has four locations on the inner peripheral edge 32 of the opening as the mounting locations. Of these four attachment points, two are set on the inner peripheral edge 32 on the front side in the vehicle longitudinal direction, and the other two places are set on the inner peripheral edge 32 on the rear side. Further, the four attachment points are set at symmetrical positions in the vehicle width direction.

1 and 2, the left-right direction indicated by the arrows is the vehicle width direction, the left side in the figure is the right side of the vehicle, and the right side in the figure is the left side of the vehicle. In the drawing, the vertical direction is the longitudinal direction of the vehicle, with the upper side in the figure being the front side and the lower side in the figure being the rear side.

FIG. 3 is an enlarged view of the attachment positions corresponding to each other of the inner panel 30 and the insulator 40 in a state in which the insulator 40 is removed from the inner panel 30. 4 to 6, in each stage of attaching the insulator 40 to the inner panel 30, the inner panel 30 and the insulator 40 are cut in parallel with the inner peripheral edge 32 (and the outer peripheral edge 42, which will be described later). FIG.

As shown in FIG. 3, a cut-and-raised portion 33 having a shape cut and raised in the surface direction is formed at the mounting location on the inner panel 30. The cut-and-raised part 33 has a notch 33a, a tip 33b, a rising part 33c, and a base 33d. The notch 33a is notched from the inner peripheral edge 32 at the attachment location toward the inside of the member. On one side of the notch 33a, a rising portion 33c is raised in an inclined state with the base end portion 33d as an axis so as to lift the tip end portion 33b in a stepwise manner with respect to the peripheral portion 34.

The cut and raised portion 33 is cut and raised along the inner peripheral edge 32 of the opening. That is, the cut-and-raised part 33 is formed along the inner peripheral edge 32 of the opening, with the notch 33a, the tip 33b, the rising part 33c, and the base 33d. Attachment locations set on the inner peripheral edge 32 on the same side in the vehicle longitudinal direction are cut and raised in the same direction with respect to the inner peripheral edge 32. On the other hand, the attachment points set on the inner peripheral edge 32 on the different side in the vehicle front-rear direction are cut and raised symmetrically with respect to the vehicle front-rear direction.

Further, as described above, the tip 33b and the peripheral portion 34 of the cut and raised portion 33 are stepped. Therefore, as well shown in FIG. 4, a space 33 s is formed between the cut-and-raised part 33 and the extension of the peripheral part 34. A gap (step difference) in the overlapping direction of the space portion 33s is set to be equal to or larger than the thickness of the cut-and-raised portion 43 of the insulator 40 which is a mounting counterpart member.

A protrusion 35 is formed from the back surface at the back surface position of the peripheral portion 34 in contact with the base end portion 33 d of the cut and raised portion 33. As shown in FIGS. 4 to 6, the protrusion 35 is formed smoothly and continuously from the base end portion 33 d.

A positioning hole 36 is provided at one end of the inner panel 30 in the longitudinal direction (the right end in FIG. 1) for determining the mounting position of the inner panel 30 and the insulator 40 in the in-plane direction.

The insulator 40 is made of glass wool that functions as a sound absorbing material, and is formed in a sheet shape that is long in the vehicle width direction. In the insulator 40, four portions in the sheet-like outer peripheral edge 42 are set as the above-mentioned attachment portions. As shown in FIGS. 1 and 2, the four attachment points of the insulator 40 correspond to the four attachment points of the inner panel 30, respectively. Of these four attachment points, two are set on the outer peripheral edge 42 on the front side in the vehicle front-rear direction, and the other two places are set on the outer peripheral edge 42 on the rear side. Further, the four attachment points are set at symmetrical positions in the vehicle width direction.

Further, the attachment positions corresponding to each other of the inner panel 30 and the insulator 40 are cut and raised substantially in point symmetry with each other when placed in the attachment direction, as well shown in FIG.

At the attachment location in the insulator 40, a cut-and-raised portion 43 having a shape cut and raised in the direction of the back surface is formed. The cut-and-raised part 43 has a notch 43a, a tip 43b, a rising part 43c, and a base 43d. The notch 43a is notched from the outer peripheral edge 42 at the attachment location toward the inside of the member. On one side of the cutout portion 43a, the rising portion 43c is raised in an inclined state with the base end portion 43d as an axis so that the tip end portion 43b is recessed in the back surface direction with respect to the peripheral portion 34. The cut-and-raised part 43 is formed to be harder than the other part of the insulator 40 by impregnating the adhesive.

The cut and raised portion 43 is formed along the outer peripheral edge 42. That is, the cut-and-raised portion 43 is formed along the sheet-like outer peripheral edge 42 with the cutout portion 43a, the tip portion 43b, the rising portion 43c, and the base end portion 43d.

Further, as described above, the tip end portion 43b and the peripheral portion 44 of the cut and raised portion 43 are stepped. Therefore, as well shown in FIG. 4, a space portion 43 s is formed between the cut and raised portion 43 and the extension of the peripheral portion 44. The gap in the overlapping direction of the space portions 43s (step difference) is set to be equal to or greater than the thickness of the cut-and-raised portion 33 of the inner panel 30 that is the counterpart member.

A positioning hole 46 for determining a mounting position in the in-plane direction of the insulator 40 and the inner panel 30 is provided at one end (the right end in FIG. 1) of the insulator 40 in the longitudinal direction.

Next, a method for attaching the insulator 40 will be described with reference to FIGS. 4 to 6 and FIGS. 7 to 9. In order to attach the insulator 40 to the inner panel 30, first, the inner panel 30 and the insulator 40 are overlapped with each other with corresponding attachment locations. At this time, the

front end portions

33b and 43b of the cut-and-raised

portions

33 and 43 of the inner panel 30 and the insulator 40 are respectively aligned with the positions of the cut-out

portions

43a and 33a of the corresponding cut-and-raised portions 43 and 33 (FIGS. 4 and 7). reference). Hereinafter, the corresponding cut and raised parts are referred to as “other cut and raised parts”.

Next, the inner panel 30 and the insulator 40 are relatively slid in the in-plane longitudinal direction (the arrow direction in the figure), and the cut-and-raised

portions

33 and 43 of the inner panel 30 and the insulator 40 are moved to other cut-and-raised portions, respectively. It fits in the

space parts

43s and 33s formed by the shape of 43 and 33.

When the slide movement is further continued, the distal end portion 43b of the cut-and-raised portion 43 of the insulator 40 comes into contact with the inclined surface of the rising portion 33c or the base end portion 33d of the cut-and-raised portion 33 of the inner panel 30, and the back surface of the inner panel 30 Diverted in the direction. Subsequently, the distal end portion 43b of the insulator 40 rides on the protrusion 35 formed continuously with the base end portion 33d (see FIGS. 5 and 8). In this way, in addition to the relative sliding movement in the in-plane direction of the inner panel 30 and the insulator 40, the leading end portion 43b of the insulator 40 is deflected and goes around to the back surface position of the inner panel 30. Accompanied by relative overlap movement. As a result, the

peripheral portions

34 and 44 of the cut-and-raised

portions

33 and 43 of the inner panel 30 and the insulator 40 are brought into close contact with each other, and the relative movement of the inner panel 30 and the insulator 40 in the overlapping direction is restricted.

When the slide movement is further continued, the rising

portions

33c and 43c of the inner panel 30 and the insulator 40 come into contact with each other, and the cut-and-raised

portions

33 and 43 are completely fitted into the other cut-and-raised

portions

43 and 33, respectively (FIG. 6). And FIG. 9). At this time, the

leading end portions

33b and 43b of the cut-and-raised

portions

33 and 43 of the inner panel 30 and the insulator 40 are fitted to the back surface positions of the cut-and-raised base ends 43d and 33d of the other cut-and-raised

portions

43 and 33, respectively.

After the fitting of the cut and raised

portions

33 and 43 is completed, as shown in FIG. 2, the clip 50 is communicated with the positioning holes 36 and 46 of the inner panel 30 and the insulator 40, and the inner panel 30 and the insulator 40 are in-plane. It is fixed so that it cannot move relative to the direction. The installation of the insulator 40 is completed by the above procedure.

As described above, the vehicle insulator 40 mounting structure includes the vehicle hood 10 and the sheet-shaped insulator 40 that is attached to the inside of the hood 10 in a superposed manner. The hood 10 and the insulator 40 have cut-and-raised

portions

33 and 43 that are cut and raised toward each other as attachment points. The cut-and-raised

portions

33 and 43 are relatively moved in the direction along the overlapping surface of the hood 10 and the insulator 40 and are fitted into the space portions formed by the shapes of the other cut-and-raised

portions

43 and 33, respectively. At least one of the cut-and-raised

portions

33 and 43 has

distal end portions

33b and 43b that are fitted to the back surface positions of the base ends 43d and 33d of the other cut-and-raised

portions

43 and 33. Therefore, the number of separate parts such as clips for attaching the insulator 40 to the hood 10 can be reduced, and the manufacturing cost can be reduced.

The other cut-and-raised

parts

33 and 43 are provided with protrusions formed at the back surface positions of the base ends 43d and 33d. For this reason, the

front end portions

33b and 43b of at least one of the cut and raised

portions

33 and 43 of the hood 10 and the insulator 40 ride on the protrusions when fitted to the back surface positions of the other cut and raised base ends 43d and 33d. As a result, the

peripheral portions

34 and 44 of the cut and raised shape in both the hood 10 and the insulator 40 are more closely attached to each other. Therefore, rattling of the insulator 40 attached to the hood 10 can be reduced.

The mounting location of the insulator 40 is set to the outer peripheral edge 42 of the sheet shape. The hood 10 includes an outer panel 20 and an inner panel 30 that are attached to each other, and the inner panel 30 includes an opening having a shape corresponding to the shape of the insulator 40. The attachment location of the hood 10 is set at a position corresponding to the attachment location of the insulator 40 on the inner peripheral edge 33 of the opening of the inner panel 30. For this reason, when the insulator 40 is overlaid on the inner panel 30, it is easy to recognize the positional correspondence between the attachment locations of the insulator 40 and the inner panel 30. Therefore, the insulator 40 can be easily attached to the hood 10.

The cut and raised

portions

33 and 43 of the insulator 40 are cut and raised along the outer peripheral edge 42, and the cut and raised

portions

33 and 43 of the hood 10 are cut and raised along the inner peripheral edge 33 of the opening. Therefore, the direction in which the insulator 40 and the inner panel 30 are slid relative to each other is the direction along the outer peripheral edge 42 of the insulator 40 and the inner peripheral edge 33 of the opening of the inner panel 30, and the sliding direction is visually recognized. It's easy to do. Therefore, the insulator 40 can be more easily attached to the hood 10.

Although the embodiment of the present invention has been described with reference to the above-described structure, it will be apparent to those skilled in the art that many substitutions, improvements, and changes can be made without departing from the object of the present invention. Accordingly, aspects of the invention may include all alterations, modifications, and variations that do not depart from the spirit and scope of the appended claims. For example, the form of the present invention is not limited to the special structure described above, and can be modified as follows.

The inner panel 30 does not necessarily have a shape having an opening corresponding to the shape of the insulator 40.

The mounting locations are not necessarily set at four locations on the inner peripheral edge 32 of the opening of the inner panel 30, and the mounting locations can be set inside the member away from the inner peripheral edge 32 of the opening. Even in the latter case, for example, a U-shaped cut can be put into a cut and raised shape. Moreover, the number of attachment locations can be set freely. The same applies to the attachment location of the outer peripheral edge 42 of the insulator 40.

The mounting location of the inner panel 30 can be set not only on the front and rear inner peripheral edges 32 in the vehicle front-rear direction as in this embodiment, but also on the left and right inner peripheral edges 32 in the vehicle width direction. In the latter case, the relative sliding movement direction when attaching the insulator 40 to the inner panel 30 is the short direction (vehicle longitudinal direction) of the inner panel 30 and the insulator 40.

The cut-and-raised shape of the inner panel 30 is assumed to be cut and raised from the inner peripheral edge toward the inside of the member of the inner panel 30 in addition to the cut and raised shape along the inner peripheral edge 32 of the opening as in the present embodiment. You can also That is, the distal end portion 33b of the cut and raised portion 33 may be formed on the inner peripheral edge 32 of the opening, and the proximal end portion 33d may be cut and raised so as to be inside the member of the inner panel 30 away from the inner peripheral edge 32. . The same applies to the cut-and-raised shape of the insulator 40.

Only one of the

leading end portions

33b and 43b of the cut-and-raised

portions

33 and 43 can be fitted to the back surface positions of the

base end portions

43d and 33d of the other cut-and-raised

portions

43 and 33.

The separate clip 50 used in the present embodiment for positioning the inner panel 30 and the insulator 40 in the in-plane direction is not necessarily required for mounting the insulator 40.

Claims

An insulator mounting structure for an automobile,
A hood of the automobile, and a sheet-shaped insulator attached to be overlapped with the inside of the hood,
The hood and the insulator are cut-and-raised portions that are cut and raised in the overlapping direction as mounting locations, and are formed by shapes of other cut-and-raised portions that move relative to each other in the overlapping plane direction. A cut and raised part fitted to the part,
The insulator mounting structure for an automobile, wherein at least one of the cut-and-raised portions has a distal end portion that is fitted to the back surface position of the base end of the other cut-raised portion.
The vehicle insulator mounting structure according to claim 1,
The said other cut-and-raised part is an insulator mounting structure of a motor vehicle provided with the protrusion formed in the back surface position of the base end.
The insulator mounting structure for an automobile according to claim 1 or 2,
The mounting location of the insulator is set to the outer peripheral edge of the sheet shape,
The hood includes an outer panel and an inner panel bonded to each other, and the inner panel includes an opening having a shape corresponding to the shape of the insulator,
The insulator mounting structure for an automobile, wherein the mounting portion of the hood is set at a position corresponding to the mounting portion of the insulator on the inner peripheral edge of the opening of the inner panel.
An insulator mounting structure for an automobile according to claim 3,
The cut and raised portion of the insulator is cut and raised along the outer peripheral edge,
The insulator mounting structure for an automobile, wherein the cut and raised portion of the hood is cut and raised along the inner peripheral edge of the opening.