JP2013001299A - Insulator mounting structure to hood of vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress a manufacturing cost by mounting an insulator to a hood of a vehicle without using different components such as clips or by reducing the quantity.SOLUTION: Parts which are to be mounting parts of an inner panel 30 of the hood and an insulator 40 of each other are respectively set at corresponding positions at an inner peripheral edge 32 of the opening of the inner panel 30 and an outer circumferential edge 42 of the insulator 40. The parts turned to the mounting parts of both members 30 and 40 are formed in the shape of being cut and raised in a superposing direction respectively, the cut-and-raised shape of the insulator 40 is formed along the outer circumferential edge 43, and the cut-and-raised shape of the inner panel 30 is formed along the inner peripheral edge 33 of the opening. The cut-and-raised shape parts 33 and 43 of both members 30 and 40 are slid relatively in a surface direction and fitted in a space part formed by the cut-and-raised shape of the opposite members 40 and 30 respectively, and the insulator 40 is attached to the inner panel 30.

Description

  The present invention relates to an insulator mounting structure in which a sheet-like insulator is mounted on an inner surface of a hood of an automobile.

Conventionally, a sheet-like insulator that functions as a sound absorbing material is attached to the inner side surface of the hood that covers the upper side of the engine room of an automobile, thereby absorbing sound generated from the engine. As such an insulator mounting structure to an automobile hood, for example, a technique disclosed in Patent Document 1 below is known.
A general insulator mounting structure is shown in FIG. In this structure, the hood 90 is configured by bonding an outer panel 91 and an inner panel 92 together. The inner panel 92 is provided with mounting claws 93, and the inner panel 92 and the insulator 94 are respectively provided with mounting holes 95 and 96 at corresponding positions. The edges of the insulator 94 are hooked on the mounting claws 93 of the inner panel 92 and overlapped, and the clip 97 is communicated with the corresponding mounting holes 95 and 96 of the insulator 94 so that the insulator 94 is connected to the inner panel of the hood 90. 92 was attached.

JP 2003-31418 A

However, the above-described mounting structure shown in FIG. 7 has a problem of high cost because a large number of separate clips 97 are required for mounting the insulator 94.
The present invention has been made in view of such problems, and the problem to be solved by the present invention is that an insulator is used in an automobile hood without using a separate part such as a clip or by reducing the number thereof. It is in suppressing manufacturing cost by attaching.

An insulator mounting structure for an automobile hood according to a first aspect of the present invention is an insulator mounting structure for an automobile hood in which a sheet-like insulator is mounted on an inner side of an automobile hood. The parts that are the attachment points of the insulators are both formed as a shape cut and raised in the direction of the surface to be overlapped, and the cut and raised shape part of both is formed by the cut and raised shape of both. A configuration in which the space portion is slidably fitted in the surface direction and fitted and attached, and at least the tip portion of one of the cut and raised portions is fitted and attached to the back surface position of the other cut and raised base end. It is characterized by becoming.
According to this configuration, the portion that is the attachment location between the hood and the insulator is formed as a shape that is cut and raised in the direction of the surface to be overlapped. The insulator is attached to the hood by being fitted into the space formed by the shape. Therefore, the insulator can be attached to the hood without using a separate part such as a clip, and the manufacturing cost can be reduced.

An insulator mounting structure to an automobile hood according to a second invention of the present invention is the insulator mounting structure according to the first invention, wherein the tip of at least one of the cut-and-raised portions is fitted. A protrusion is formed from the back surface at the back surface position of the other cut and raised base end.
According to this configuration, the front end portion of one cut-and-raised shape portion of the hood and the insulator rides on this protrusion when fitting to the back surface position of the other cut-and-raised base end. Thereby, the peripheral part of the cut-and-raised shape in both the hood and the insulator is more closely attached to each other. Thereby, the rattling of the insulator attached to the hood can be reduced.

An insulator mounting structure to an automobile hood according to a third aspect of the present invention is the insulator mounting structure according to any one of the first and second inventions, wherein the mounting position of the insulator is a sheet-like outside. The cut and raised shape is set along the outer periphery, and the hood is formed by bonding the outer panel and the inner panel together. The inner panel corresponds to the shape of the insulator. The mounting portion is set at a position corresponding to the mounting portion of the insulator on the inner peripheral edge of the opening, and the cut-and-raised shape is formed along the inner peripheral edge of the opening. It is characterized by being.
According to this configuration, the installation location of the insulator is set to the outer peripheral edge of the sheet shape, and the installation location of the inner panel is set to a position corresponding to the installation location of the insulator on the inner peripheral edge of the opening. For this reason, when the insulator is overlaid on the inner panel, it is easy to recognize the positional correspondence between the attachment locations of the insulator and the inner panel. Further, the cut and raised shape at the place where the insulator is attached is formed along the outer peripheral edge of the sheet shape, and the cut and raised shape at the place where the inner panel is attached is formed along the inner peripheral edge of the opening. For this reason, the direction in which the insulator and the inner panel are slid relative to each other is the direction along the outer peripheral edge of the insulator and the inner peripheral edge of the opening of the inner panel, and the sliding direction is easily visually recognized. Therefore, it is easy to attach the insulator to the hood.

According to the first invention, the manufacturing cost of the mounting structure can be suppressed.
According to the second invention, rattling of the insulator attached to the hood can be reduced.
According to the third invention, it is easy to attach the insulator to the hood.

It is a perspective view which shows the state which removed the insulator from the hood which concerns on this embodiment. It is a perspective view which shows the state which attached the insulator to the hood which concerns on this embodiment. It is a perspective view which expands and shows the corresponding attachment location in the state which removed the hood and the insulator. It is (A) sectional drawing and corresponding (B) top view which cut and show the attachment location before making a hood and an insulator slide relatively. It is (A) sectional drawing and the corresponding (B) top view which cut | disconnect and show the attachment location in the middle of making a hood and an insulator slide relatively. It is the (A) sectional view and a corresponding (B) top view which cut and show the attachment location after making a hood and an insulator slide relatively. It is a perspective view which shows the attachment structure of the insulator to the conventional hood.

  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.

First, the hood 10 will be described.
As shown in FIG. 1, the hood 10 is configured by bonding an outer panel 20 and an inner panel 30 together. 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, and the members 30 and 40 are provided with locations (attachment locations) for attaching them to each other. . Hereinafter, “both members” refers to both the inner panel 30 and the insulator 40, and “mating member” refers to the other of these ones.

The inner panel 30 has a shape having an opening corresponding to the shape of the insulator 40 which is a counterpart 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, 31 provided at two places on the left and right sides in the vehicle width direction.
In the inner panel 30, four portions on the inner peripheral edge 32 of the opening are set as the attachment portions. 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 in the figure is the vehicle width direction as indicated by arrows, 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 same figure, the vertical direction in the figure is the vehicle longitudinal direction, the upper side in the figure is the front side, and the lower side in the figure is the rear side.

FIG. 3 is an enlarged view of a corresponding attachment location of both members 30 and 40 in a state where both members 30 and 40 are removed from each other. 4 to 6, in each stage of attaching the members 30 and 40 to each other, the parts 30 and 40 are cut in parallel with an inner peripheral edge 32 (and an outer peripheral edge 42 to be described later) at each stage of attachment. FIG.
The site | part used as the attachment location in the inner panel 30 is formed as the shape cut and raised in the surface direction, as FIG. 3 shows.
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, the rising portion 33c is raised in an inclined state with the base end portion 33d as an axis so as to lift the distal end portion 33b in a stepwise manner with respect to the peripheral portion 34.
The cut and raised shape is formed along the inner peripheral edge 32 of the opening. That is, the cut-and-raised portion 33 is formed on the inner peripheral edge 32 of the opening over the entire cutout portion 33a, distal end portion 33b, rising portion 33c, and base end portion 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 location set in the inner peripheral edge 32 on the different side in the vehicle front-rear direction has a cut-and-raised shape that is symmetrical 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 portion 33 s is formed between the cut-and-raised portion 33 and the extension of the peripheral portion 34. A gap (step difference) in the overlapping direction of the space portion 33 s is set to be equal to or greater than the thickness of the cut-and-raised shape portion 43 of the insulator 40 that is the 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 shape portion 33. As shown in FIGS. 4 to 6, the protrusion 35 is formed smoothly and continuously from the base end portion 33 d.
At one end in the longitudinal direction of the inner panel 30 (the right end in FIG. 1), a positioning hole 36 for determining the mounting position in the in-plane direction of both the members 30 and 40 is provided.

Next, the insulator 40 will be described.
The insulator 40 is made of glass wool that exhibits a function as a sound absorbing material, and is formed in a longitudinal sheet shape. In the insulator 40, four portions in the sheet-like outer peripheral edge 42 are set as the above-mentioned attachment locations. 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 mounting locations, two are set on the outer peripheral edge 42 on the front side in the vehicle longitudinal direction, and the other two locations 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, as shown in FIG. 3, the corresponding attachment locations of both members 30 and 40 have a cut-and-raised shape that is substantially point-symmetric with respect to each other when placed in the attachment direction.

The part used as the attachment location in the insulator 40 is formed as the shape cut and raised in the back surface direction.
The cut-and-raised shape portion 43 has a notch portion 43a, a distal end portion 43b, a rising portion 43c, and a proximal end portion 43d. The notch 43a is notched toward the inside of the member from the outer peripheral edge 42 at the attachment location. 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 portion 43 is formed to be harder than other portions of the insulator 40 by soaking the adhesive.
The cut and raised shape is formed along the outer peripheral edge 42. That is, the cut-and-raised portion 43 is formed in the sheet-like outer peripheral edge 42 over the entire cutout portion 43a, tip portion 43b, rising portion 43c, and 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 larger than the thickness of the cut-and-raised portion 33 of the inner panel 30 that is the counterpart member.
At one end in the longitudinal direction of the insulator 40 (the right end in FIG. 1), a positioning hole 46 for determining an in-plane mounting position of the insulator 40 and the inner panel 30 is provided.

Next, the attachment method of both the members 30 and 40 is demonstrated, referring FIGS. 4-6.
First, the members 30 and 40 are overlapped with each other so as to correspond to the attachment locations. Specifically, the tip end portions 33b and 43b of the cut-and-raised portions 33 and 43 of both members 30 and 40 are overlapped with the positions of the cut-out portions 43a and 33a at the corresponding attachment locations of the respective mating members 40 and 30. (See FIG. 4).
Next, the members 30 and 40 are slid relative to each other in the in-plane longitudinal direction (the arrow direction in the figure), and the cut-and-raised portions 33 and 43 of the both members 30 and 40 are moved to the corresponding members 40 and 40 respectively. It fits in the space parts 43s and 33s formed by 30 cut-and-raised shape.
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 It is deflected toward the back side of the panel 30. Subsequently, the tip end portion 43b of the insulator 40 rides on the protrusion 35 formed continuously with the base end portion 33d (see FIG. 5). In this way, the tip end portion 43b of the insulator 40 is deflected and turns to the back surface position of the inner panel 30, so that in addition to the relative sliding movement of both the members 30, 40 in the in-plane direction, in the overlapping direction of each other. With relative overlap movement. Thereby, the peripheral parts 34 and 44 of the cut-and-raised portions 33 and 43 of both the members 30 and 40 are brought into close contact with each other, and the relative movement of the both members 30 and 40 in the overlapping direction is restricted.
When the sliding movement is further continued, the rising portions 33c and 43c of both the members 30 and 40 come into contact with each other, and the cut-and-raised shape portions 33 and 43 are completely connected to the cut-and-raised shape portions 43 and 33 of the mating members 40 and 30. It will be in the state (refer FIG. 6) inserted. At this time, the front end portions 33b and 43b of the cut-and-raised portions 33 and 43 of both the members 30 and 40 are fitted to the back surface positions of the cut-and-raised base ends 43d and 33d of the respective mating members 40 and 30.
In this state, as shown in FIG. 2, the clip 50 is communicated with the positioning holes 36 and 46 of both the members 30 and 40, and the both members 30 and 40 are fixed so as not to move relative to each other in the in-plane direction. By the above procedure, both members 30 and 40 are attached to each other.

The structure for attaching an insulator to a hood of an automobile configured as described above has the following effects.
According to this structure, the site | part used as the mutual attachment location of the inner panel 30 and the insulator 40 of the food | hood 20 is formed as the shape cut and raised in the surface direction to respectively overlap, These both members 30 and 40 The insulator 40 is attached to the inner panel 30 by fitting the cut and raised portions into the space portions 33s and 43s formed by the cut and raised shapes of the mating members 40 and 30, respectively. Therefore, the manufacturing cost can be reduced by reducing the number of other parts such as clips and attaching the insulator 40 to the inner panel 30 of the hood 20.
Furthermore, according to this structure, the front-end | tip parts 33b and 43b of one cut-and-raised shape part 33 and 43 of both members 30 and 40 are back surface positions of the base end parts 43d and 33d of the other cut-and-raised part 43 and 33. Ride on the protrusion 35 when it is fitted. Thereby, the peripheral parts 34 and 44 of the cut-and-raised shape in both the members 30 and 40 adhere more closely. Thereby, shakiness of the insulator 40 attached to the inner panel 30 of the hood 20 can be reduced.
Furthermore, according to this structure, the attachment location of the insulator 40 is set to the sheet-like outer periphery 42, and the attachment location of the inner panel 30 is set to a position corresponding to the attachment location of the insulator 40 on the inner periphery 32 of the opening. . For this reason, when the insulator 40 is superimposed on the inner panel 30, it is easy to recognize the position correspondence between the attachment positions of the members 30 and 40. The cut-and-raised shape at the mounting location of the insulator 40 is formed along the sheet-like outer peripheral edge 43, and the cut-and-raised shape at the mounting location of the inner panel 30 is formed along the inner peripheral edge 33 of the opening. Yes. For this reason, the direction in which both the members 30 and 40 are slid relative to each other is the direction along the outer peripheral edge 43 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. Cheap. Therefore, the insulator 40 can be easily attached to the inner panel 30 of the hood 20.

In addition, the insulator attachment structure to the hood of the automobile according to the present invention is not limited to the above embodiment, and can be implemented in various other forms.
In the present embodiment, the inner panel 30 has a shape with an opening corresponding to the shape of the insulator 40, but may have a shape without an opening.
Moreover, in this embodiment, although the four parts in the inner peripheral edge 32 of the opening of the inner panel 30 were set as attachment places, the attachment part was set in the member away from the inner peripheral edge 32 of the opening. Also good. Thus, even when the attachment location is set inside the member, for example, a U-shaped cut can be made to make 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.
Moreover, in this embodiment, the attachment location of the inner panel 30 was set to the inner periphery 32 of the front side and rear side of a vehicle front-back direction. However, the attachment location may be set to the left and right inner peripheral edges 32 in the vehicle width direction. In this case, the direction of relative sliding movement when attaching the insulator 40 to the inner panel 30 is the short direction (vehicle longitudinal direction) of both members 30 and 40.
In the present embodiment, the cut-and-raised shape of the inner panel 30 is cut and raised along the inner peripheral edge 32 of the opening, but this is cut and raised from the inner peripheral edge toward the inside of the member of the inner panel 30. It is good also as a composition. That is, the distal end portion 33 b of the cut and raised portion 33 is formed on the inner peripheral edge 32 of the opening, and the proximal end portion 33 d is cut and raised so as to be inside the member of the inner panel 30 away from the inner peripheral edge 32. It is good also as a structure. The same applies to the cut-and-raised shape of the insulator 40.
Moreover, in this embodiment, when the cut-and-raised shape portions 33 and 43 of both members 30 and 40 are completely fitted to the mating members 40 and 30, the tips of the cut-and-raised shape portions 33 and 43, respectively. The parts 33b and 43b were configured to fit to the back surface positions of the base end parts 43d and 33d of the cut-and-raised shape of the mating members 40 and 30, respectively. However, only the front end portions 33b and 43b of one of the raised portions 33 and 43 of at least the members 30 and 40 are fitted to the back surface positions of the base end portions 43d and 33d of the mating members 40 and 30 on the other side. It is good also as a structure to insert.
Further, in the present embodiment, in addition to the configuration of the cut-and-raised shape portions 33 and 43 that are the attachment locations, the positioning of the members 30 and 40 in the in-plane direction is performed using the clip 50 as a separate part. It is good also as a structure which does not use another parts, such as a clip, at all.

DESCRIPTION OF SYMBOLS 10 Hood 20 Outer panel 30 Inner panel 31 Bridging part 32 Opening inner periphery 33 Cut-and-raised part 33a Notch part 33b Tip part 33c Raising part 33d Base end part 33s Space part 34 Peripheral part 35 Projection 36 Positioning hole 40 Insulator 42 Outer peripheral edge 43 Cut-and-raised part 43a Notch 43b Tip 43c Raised 43d Base 43s Space 44 Peripheral 46 Positioning hole 50 Clip

Japanese Utility Model Publication No. 62-74079

Claims (3)

  A structure for attaching an insulator to an automobile hood, in which a sheet-like insulator is attached to the inner side of the hood of an automobile, and the portions that are the attachment positions of the hood and the insulator are both in the direction of the surface to be overlaid. It is formed as a cut-and-raised shape, and the cut-and-raised shape parts of both are fitted and attached by sliding relative to the space formed by the cut-and-raised shape of both of them. A structure for attaching an insulator to a hood of an automobile, characterized in that at least the leading end of one of the cut and raised portions is fitted and attached to the back surface position of the other cut and raised base end.   The insulator mounting structure to the hood of an automobile according to claim 1, wherein the at least one of the cut-and-raised portions of the at least one of the cut-and-raised portions is fitted to the back surface position of the other cut-and-raised base end from the back surface. A structure for attaching an insulator to an automobile hood, wherein a protrusion is formed. The insulator attachment structure to the hood of an automobile according to claim 1 or 2, wherein the insulator is attached to a seat-like outer peripheral edge, and the cut and raised shape is along the outer peripheral edge. The hood is formed by bonding an outer panel and an inner panel, and the inner panel is formed in a shape having an opening corresponding to the shape of the insulator, An insulator mounting structure to a hood of an automobile, wherein the structure is set at a position corresponding to the mounting location of the insulator on the inner peripheral edge of the opening, and the cut and raised shape is formed along the inner peripheral edge of the opening.

Images