JP2009248949A - Vehicular interior component - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an interior component for a vehicle, surely enabling an air-bag to be developed by causing the body of the interior component having a front cover bonded thereon to be developed smoothly when the air-bag is developed. <P>SOLUTION: A vehicular interior component includes: a body of the interior component covering a side of a vehicular body panel facing a compartment; a developer part arranged at the body of the vehicular interior component developed along with development motion of an air-bag arranged between the vehicle body panel and the body of the interior component toward the inside of the compartment; and a front cover having a body of the front cover continuously covering both the body of the interior component and the developer part and having a laying part the terminal end of which is folded and inserted into the vehicle body. The laying part has: one area where a laying length ranging from a terminal end of the body of the interior component at the laying part to the terminal end of the laying part is long; the other area where the laying length is short; and a curved line part arranged in an interface between the one area having the long laying part length and the other area having the short laying part, where the laying length is gradually changed in correspondence with the developer part. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a vehicle interior part. In particular, in doors, rear side, luggage side, pillars, roofs, etc., interior parts mounted on the vehicle body side of the body panel, airbags installed between the body panel and interior parts, and interior parts The present invention relates to an interior part for a vehicle having a skin that covers a passenger compartment side.

  2. Description of the Related Art Conventionally, a vehicle airbag is a device that is provided, for example, inside a door trim and inflates and deploys at the time of a collision to protect a passenger from an impact at the time of the collision. When the airbag is inflated and deployed, it is necessary to deform a part of the trim in the direction in which the airbag is deployed. Therefore, a technique has been proposed in which a part of the trim that becomes an obstacle when the airbag is deployed is easily deformed from the attached state to the indoor side by pressing the airbag, and the airbag is reliably deployed.

  Therefore, when a weak part is provided on the upper surface of the door trim upper and the airbag is deployed upward, the airbag is pushed upward so that the trim above the weak part is deployed by the airbag pressing, so that the airbag can be deployed smoothly. A technique that can be performed has been proposed (see, for example, Patent Document 1).

JP 2006-88731 A

  FIG. 1A is a cross-sectional view schematically showing an upper cross section of a conventional vehicle door. FIG. 1B is an enlarged cross-sectional view schematically showing the upper end B of the door upper trim 2 in FIG.

  As shown in FIG. 1A, the door upper trim 2 includes a door upper body 5, a door upper skin 6, a cushioning material, and the like. The door upper body 5 is formed of a material such as PPC and forms the shape of the door upper trim 2. The door upper skin 6 is attached to the vehicle interior side of the door upper body 5 and, for example, a resin material or a material obtained by painting or pasting the resin material is used to improve the appearance of the vehicle interior. . Similarly, the door center trim 3 is composed of a door center body 7, a door center skin 8 and a cushioning material. An airbag unit 10 is provided between the door inner panel 14 and the door upper body 5. Further, the door upper body 5 in the vicinity of the airbag unit 10 has a deployment portion 2a provided on the upper portion of the door upper body 5 so that the airbag 2 can move smoothly when the airbag is deployed from the airbag unit 10. A hinge 12a is provided. The hinge 12a is provided on the vehicle body panel side of the door upper body 5 by a slit or a groove.

  As shown in FIG. 1B, a waist garnish 9 is in contact with the upper end of the door upper body 5 from below at the upper end of the door upper trim 2. The waist garnish 9 is formed of the same material as that of the door upper body 5 so that it can withstand the load applied from above at the upper end of the door upper trim 2. The door upper skin 6 is stretched from the upper end of the door upper body 5 to the waist garnish 9 so as to be wound from the vehicle compartment side. In this door upper skin 6, a region pasted on the waist garnish 9 is referred to as a pasting portion 13. The passenger compartment can be beautifully dressed without any gaps by the door upper skin 6, and the passenger cannot see the door upper body 5 and the waist garnish 9. In addition, although not shown in the drawings, when there are no other parts around the end of the door upper body, the projecting portion may be provided on the vehicle body panel side of the door upper body.

  However, as shown in FIG. 1 (b), the stretched portion 13 is stuck to the waist garnish 9 from the end of the door upper body 5 so as to be wound from the vehicle interior side. This prevents the door upper body 5 from being deployed to the vehicle interior side during deployment. Since the door upper skin 6 is made of a resin material, the door upper skin 6 is not easily broken and cannot be cut in a stable state for each part. Therefore, a strong resistance is generated when the door upper body 5 is deployed.

  Therefore, the present invention has been made in view of the above circumstances, and when the airbag is deployed, the vehicle interior that reliably deploys the airbag even when the deployment portion is covered by the skin. The purpose is to provide parts.

  In order to solve the above-mentioned problem, a vehicle interior part according to claim 1 includes an interior part body that covers a compartment side of a body panel, and an airbag provided between the body panel and the interior part body. An expansion part that expands in accordance with the expansion to the indoor side, an inner skin that continuously covers the interior part main body and the expansion part, and an epidermis that has an extension part into which the terminal is bent and stretched. The stretched portion includes a region having a long stretch length and a short region, and a region having a long stretch length and a short region, each of which is a length from the end of the interior part body on the terminal side to the end of the stretch portion. It is provided at a boundary, and has a curve portion in which the extension length gradually changes corresponding to the development portion.

According to the first aspect of the present invention, the interior part main body arranged in the airbag deployment direction is provided with a deployment portion corresponding to the position of the airbag at a portion that inhibits deployment of the airbag. . And the skin is affixed on this interior part main body and the expansion | deployment part so that the vehicle interior side may be beautifully dressed. In order to improve the aesthetic appearance, this skin is provided with a projecting portion so as to protrude from the end of the interior part main body. The shape of the projecting portion is characterized by changing in accordance with the developed portion. Specifically, a gentle curve is drawn near the extension of the edge of the developed portion. Due to the difference in the sticking strength generated in the stretched portion due to this change, the curved portion becomes a peeling base point for peeling the epidermis when the airbag is deployed. Therefore, the deployment portion is deployed in accordance with the deployment of the airbag, and the epidermis is successfully peeled off in accordance with the deployment portion. Thereby, even if it is a case where a deployment part is covered with an outer skin, an airbag can be certainly developed to a vehicle interior side. Therefore, an occupant can be reliably protected by the airbag.

  The invention according to claim 2 is characterized in that, in the vehicle interior part, the curved portion is provided at a position spaced apart from a position corresponding to a peripheral edge of the developed portion.

  According to the second aspect of the present invention, by providing the boundary portion at a position spaced from the position corresponding to the periphery of the deployment portion by a predetermined distance, the deployment portion can be easily opened, and the deployment portion can be opened when the airbag is deployed. The end does not directly contact the occupant, and the safety of the occupant can be ensured.

  ADVANTAGE OF THE INVENTION According to this invention, even when it is a case where an expansion | deployment part is covered with the skin when an airbag expand | deploys, the vehicle interior component which expand | deploys an airbag reliably can be provided.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Embodiments of the invention will be described below with reference to the accompanying drawings. The embodiment of the present invention will be described with reference to FIGS. 2 to 6 as an example applied to a vehicle door trim.

  FIG. 2 is a front view of the vehicle door 1 according to the embodiment of the present invention as viewed from the passenger compartment side. 3 is a cross-sectional view schematically showing an AA cross section of the vehicle door 1 of FIG. FIG. 4A is a configuration diagram showing a state in which the airbag unit 10 is attached to the door upper trim 2 and a structure when the airbag is deployed from the door inner panel side. FIG. 4B is a structural diagram in which the portion C of FIG. FIG. 4C is a structural diagram in which the portion D of FIG. 4B is enlarged and displayed. Fig.5 (a) is a block diagram at the time of separating a curve part from the expansion | deployment part. FIG. 5B is a configuration diagram when the portion E of FIG. 5A is enlarged. FIG. 6A is a configuration diagram in the case where the curved portion is further separated from the development portion. FIG. 6B is a configuration diagram when the portion F in FIG. 6A is enlarged.

  As shown in FIG. 2, the vehicle door 1 is equipped with a door trim (vehicle interior part) that covers the compartment side of the door inner panel (vehicle body panel) 14. The door trim is composed of a plurality of divided trims. Here, a door upper trim 2 is provided at the upper portion of the vehicle door 1 on the vehicle compartment side, a door center trim 3 is provided at the center of the vehicle door 1 on the vehicle compartment side, and a door lower trim 4 is provided at the lower portion of the vehicle door 1 on the vehicle compartment side. Is provided.

  FIG. 3 is a cross-sectional view schematically showing the AA cross section of the vehicle door 1 of FIG. 2, and also shows a state in which the airbag unit 10 is activated and the airbag 11 is deployed. .

  As shown in FIG. 3, an airbag unit 10 is attached to the door upper body (interior part body) 5, and an airbag 11 provided between the door inner panel 14 and the door upper body 2 is mounted on the vehicle. A deploying portion 2a that deploys in conformity with the deployment on the indoor side is provided. The development part 2 a is formed so as to be surrounded by a thin part provided in the door upper body 5. The thin portion includes a hinge 12a that functions as a hinge when the deployment portion 2a is deployed, and a rising portion 12b that rises upward from the hinge 12a and extends to the end of the door upper body 5. The skin is provided with a skin main body 6a that continuously covers the door upper trim 2 and the unfolded portion 2a, and an embedding portion 130 in which the terminal is folded and stuck. Since the airbag 11 is deployed upward from the airbag unit 10, an upward force is applied to the door upper body 5 of the door upper trim 2 by pressing the airbag 11. By utilizing this, the rising portion 12b of the thin-walled portion cracks from the end portion side of the door upper body 5, and the rising portion 12b breaks, and the deployment portion necessary for deploying the airbag 11 with the hinge portion 12a as an axis. 2a expands toward the passenger compartment. Thereby, the airbag 11 can be deployed. A part that cracks when the hinge or the airbag 11 is pressed may be made into a slit or the like so that the deployment of the airbag 11 is not hindered.

  FIG. 4A shows the structure of the door upper trim 2 and the airbag unit 10 installed between the door inner panel 14 and the door upper trim 2 when viewed from the door inner panel 14 side. And the position of the expansion | deployment part 2a at the time of expansion | deployment of the airbag 11 is shown. Here, the rising part 12b which is a thin part is provided in the vehicle upper direction from the hinge 12a. The rising portion 12b is broken by the pressing of the airbag 11 when the airbag 11 is deployed, and becomes the edge 25 of the deployed portion 2a.

  As shown in FIG. 4 (b), the extension portion 130 has an extension length corresponding to the development portion 2a, which is the length from the end of the extension portion 130 on the door upper body 5 side to the end of the extension portion 130. It has a curved portion 22 that changes gradually.

  Conventionally, the terminal shape of the epidermis is simplified for the purpose of uniform and stable finish, and the length of the stretched portion 130 is constant regardless of the position of the developed portion 2a. However, in this state, in order to inhibit the deployment of the airbag 11 as described above, as shown in FIG. 4B, the stretched portion 130 is provided with a region 13a having a short stretch and a region 13b having a long stretch. A region having a short extension length is provided in a portion corresponding to the development portion 2a, and a region having a long extension length is provided in a portion not corresponding to the development portion 2a. Furthermore, the stretched portion 130 has a curved portion 22 that connects the long stretched region 13b and the short stretched region. Therefore, when the deployment portion 2a is deployed in the G direction with the hinge 12a as an axis due to the deployment of the airbag 11, the curved portion 22 becomes a separation base point at which the tension portion 130 is separated from the door upper body 5. That is, since the difference in the sticking strength occurs between the sticking portions 13a and 13b due to the change in the sticking length, it becomes a peeling base point at which the skin peels when the airbag 11 is deployed.

Therefore, by providing the curved portion 22 on the extension line 21 of the edge 25 of the developed portion 2a, the curved portion 22 can effectively peel the door upper skin 13b in the vicinity of the developed portion 2a. Here, as shown in FIG. 4C, it is desirable to configure the taper 26 on the left and right of the center of the curved portion 22. When the airbag 11 is deployed, the stretched portion 130 is not broken, and the configuration is not limited to this configuration as long as it can be efficiently peeled off.

Further, as shown in FIGS. 4A and 4B, when the airbag 11 is deployed, the tension portion 130 is peeled off in accordance with the deployment of the distal end of the deployment portion 2a. Therefore, the tip of the deployment part 2a does not come into direct contact with the occupant, and secondary damage in an emergency accident can be prevented.

FIGS. 5A and 5B are examples in which the curved portion 22 is moved by a predetermined interval 33 so as to be separated from the developing portion 2a. And here, it is comprised so that the extension line 21 of the edge 25 of the expansion | deployment part 2a may pass the taper 31. FIG.

Thus, even when the extension line 21 of the edge 25 of the development part 2a passes through a part of the curved part 22, the curved part 22 becomes the peeling base point due to the change in the pasting width. It can be changed in this way depending on the shape of the door trim and the aspect of the interior. Further, by providing the curved portion 22 at a position that is separated from the position corresponding to the periphery of the deployment portion 2a by a predetermined interval 33, the deployment portion 2a can be easily opened and the end portion of the deployment portion 2a can be opened when the airbag 11 is deployed. Will not be in direct contact with the occupant, ensuring the safety of the occupant.

FIGS. 6A and 6B are views showing a mode in which the curved portion 42 is moved away from the extended line 21 of the edge 25 of the developing portion 2a and further away from the developing portion 2a. As described above, when the curved portion 42 is moved to the developing portion 2a side with respect to the extended line 21 of the edge 25 of the developing portion 2a, the curved portion 42 does not become a peeling base point. As shown here, even when the taper 43, 44 is not on the extension line 21 of the edge 25 of the development part 2a and the curved part 42 is arranged so as to be away from the development part 2a, the skin 6 can be peeled off. it can.

  According to the embodiment, the stretched portion 130 is provided at the boundary between the long stretched region 13b and the short stretched region 13a, and the long stretched region 13b and the short stretched region 13a, and has a stretched length corresponding to the developed portion 2a. It has curve portions 22 and 42 that change gradually. Thereby, from the difference in the sticking strength generated in the sticking portion 130, the curved portion 22 becomes a peeling base point for peeling the epidermis when the airbag is deployed. Therefore, the deployment part 2a is deployed in accordance with the deployment of the airbag, and the epidermis is peeled off in accordance with the deployment of the deployment part 2a. Therefore, even when the deployment part 2a is covered with the skin, the airbag can be reliably deployed on the vehicle interior side, and the occupant can be reliably protected by the airbag. In the above embodiment, the airbag unit 10 is attached to the door upper body 5, but the airbag unit 10 may be attached to the door inner panel 14. Further, the skin covering portion 130 is attached to the waist garnish 9. However, when the waist garnish 9 is not present, the attaching portion 130 may be wound around the back surface of the door upper body 5 and attached.

  The preferred embodiments of the present invention have been described above. However, the present invention can be variously modified and changed without departing from the concept of the claims. In the above embodiment, the door trim is described as an example of the vehicle interior part. However, the present invention is not limited to this, and the present invention is similarly applied to the vehicle interior part such as the rear side trim and the luggage side trim. can do. Further, instead of the door trim composed of the door upper trim, the door center trim, and the door lower trim, an integrated door trim may be used.

(A) is sectional drawing which shows simply the cross section of the upper part of the conventional vehicle door. (B) is an enlarged cross-sectional view schematically showing the upper end B of the door upper trim 2 in (a). It is the front view which looked at the door 1 for vehicles in the embodiment of the present invention from the compartment side. It is sectional drawing which shows the AA cross section of the door 1 for vehicles of FIG. 2 simply. (A) is the block diagram showing the attachment state of the airbag unit 10 to the door upper trim 2, and the structure at the time of airbag deployment from the door inner panel side. (B) is the structure figure which expanded and displayed the C section of (a). (C) is the structure figure which expanded and displayed the D section of (b). (A) is a block diagram at the time of separating a curve part from a development part. (B) is a block diagram at the time of enlarging the E section of (a). (A) is a block diagram at the time of further separating a curve part from a development part. (B) is a block diagram at the time of enlarging F section of (a).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vehicle door 2 Door upper trim 2a Expanding part 3 Door center trim 4 Door lower trim 5 Door upper body 6 Door upper skin 7 Door center body 8 Door center skin 9 Waist garnish 10 Air bag unit 11 Air bag 12a Hinge 12b Standing part 130 Part 14 Door inner panel 21 Edge extension line 22 Curved part 25 Expanding part edge 31 Taper 32 Taper 41 Intersection of edge extension line and extension part end 42 Curved part

Claims (2)

An interior part body covering the vehicle compartment side of the vehicle body panel;
An airbag provided between the vehicle body panel and the interior component main body is deployed in accordance with deployment to the vehicle interior side, and
A skin body that continuously covers the interior part body and the unfolded portion; and a skin that has a stretched portion in which the terminal is folded and stretched,
The stretched portion is a boundary between a long stretched region and a short stretched region, and a boundary between the long stretched region and the short stretched region, which is the length from the end of the stretched portion on the terminal side of the interior part body to the end of the stretched portion. The vehicle interior part is characterized in that the vehicle interior part has a curved portion in which the extension length gradually changes corresponding to the development portion. 2. The vehicle interior part according to claim 1, wherein the curved portion is provided at a position where the torn skin covers a peripheral edge of the deployed portion when the skin is torn when the airbag is deployed. .

Images