JP7137975B2 - Automobile member and its manufacturing method - Google Patents

Description

TECHNICAL FIELD The present invention relates to an automobile member composed of a foamed resin molded article and a method for producing the same.

2. Description of the Related Art Conventionally, members composed of foamed resin moldings are known as automobile members. As such automotive members, for example, Patent Documents 1 and 2 disclose a side fender and a front end which are made of a foamed resin molded body in which a foamed portion having a plurality of voids is covered with a non-foamed skin layer. A pillar skin plate is disclosed.

JP 2010-221865 A JP 2010-221866 A

By the way, it is preferable that the automobile member composed of the foamed resin molded article is formed by the core-back injection foaming molding because high rigidity can be obtained and the weight can be reduced. However, as shown, for example, in FIGS. 13 and 14, a cavity 103 provided between a fixed mold 101 and a movable mold 102 is filled with a foamable molten resin 104 by a core-back injection foam molding process, and the movable mold 102 is closed. When the foamable molten resin 104 is moved to foam and form a foamed resin molding 105 , an ear portion 106 protruding outward in a substantially mountain shape is formed at the end of the foamed resin molding 105 .

If such a substantially mountain-shaped ear portion 106 is formed, the design of the automobile member is deteriorated, and when the automobile member is fixed to the body, it becomes impossible to fix the automobile member at the terminal ear portion 106 . , the terminal is in a floating state, and it becomes difficult to obtain sufficient fixing strength. Therefore, there is a demand for an automotive member composed of a foamed resin molded article that is excellent in design and can secure a sufficient fixing region and fixing strength.

The present invention is proposed in view of the above problems, and is an automobile member composed of a foamed resin molded article, which is excellent in design and can secure a sufficient fixing area and fixing strength, and its manufacture. The purpose is to provide a method.

The automobile member of the present invention is composed of a foamed resin molded article, and has a concave groove recessed inward from the surface on the vehicle body side at a position near the end of at least a part of the end peripheral region of the outer periphery so as to substantially follow the outer periphery. a fixing surface formed in the terminal peripheral region and fixed to a vehicle body forming a surface on the vehicle body side outside the groove in the terminal peripheral region; and the vehicle body inside the groove in the terminal peripheral region. Only the two fixing surfaces of the fixing surfaces to be fixed to the vehicle body constituting the side surfaces are formed substantially flush with each other, and the terminal of the terminal peripheral region extends from the outer surface to the outer peripheral edge of the front end of the vehicle body side surface. The foamed resin molded body is a core-back injection foamed molded body in which the periphery of the foamed portion is covered with a skin portion, and the portion closer to the end than the concave groove surrounds the foamed portion. It is characterized by being formed so as to be covered with a skin portion .
According to this, the terminal of the required portion of the outer peripheral edge of the automobile member or the terminal of the entire outer peripheral edge is formed opposite to the outer surface or the vehicle body without forming the ear portion protruding outward in a substantially mountain shape on the terminal. It is possible to form a substantially arc shape extending from the side surface to the outer peripheral edge of the tip of the surface on the vehicle body side, thereby enhancing the design of the automotive member. In addition, by forming the vehicle body side surface outside the groove in the terminal peripheral region and the vehicle body side surface inside the groove substantially flush with each other, the wide vehicle body side surface extending inside and outside the groove is the fixing surface. can be used as Therefore, it is possible to obtain a sufficient fixing area for the automotive member, and to ensure sufficient fixing strength of the automotive member. In addition, the wide surface on the vehicle body side extending from the inside to the outside of the concave groove can be used as a surface for attaching a cushioning material, etc., and the cushioning material can be attached with a sufficient fixing area and fixing strength. In addition, since it is possible to use the surface on the vehicle body side in the vicinity of the substantially arc-shaped terminal as a fixing region, it is possible to prevent the terminal from floating. In addition, it is possible to manufacture and process an automobile member that has a substantially arc-shaped terminal due to the shape in which the concave groove is formed in the vicinity of the terminal, and that the surface of the terminal peripheral region on the vehicle body side is wide and substantially flush as a whole. can be facilitated. In addition, it is possible to increase the rigidity of the automotive member and achieve a significant weight reduction. In addition, the structure in which the periphery of the foamed portion is covered with the skin portion can further enhance the design of the automotive member. In addition, by using a core-back injection foam molding, the foam structure can be easily controlled, and it is possible to easily obtain an automotive member of a foamed resin molding more suitable for the type of member. In addition, since the portion closer to the terminal than the groove has the foamed portion, the size of the portion closer to the terminal than the groove can be increased, and the area of the surface on the vehicle body side outside the groove can be increased. It is possible to further ensure the use of the wide surface on the vehicle body side extending inside and outside the groove as a fixing surface.

The automobile member of the present invention is composed of a foamed resin molded article, and has a concave groove recessed inward from the surface on the vehicle body side at a position near the end of at least a part of the end peripheral region of the outer periphery so as to substantially follow the outer periphery. a fixing surface to which a double-sided tape is adhered, forming a surface on the vehicle body side outside the groove in the terminal peripheral area in the terminal peripheral area; Only the two fixing surfaces of the fixing surface to which the double-sided tape is attached, which constitute the surface on the vehicle body side, are formed substantially flush with each other, and the terminal of the terminal peripheral region extends from the outer surface to the tip of the surface on the vehicle body side. The foamed resin molding is formed in a substantially arc shape extending to the outer peripheral edge, and the foamed resin molded body is a core-back injection foamed molded body in which the periphery of the foamed portion is covered with a skin portion, and the portion closer to the end than the concave groove is the periphery of the foamed portion. is formed so as to be covered with the skin portion .
According to this, the terminal of the required portion of the outer peripheral edge of the automobile member or the terminal of the entire outer peripheral edge is formed opposite to the outer surface or the vehicle body without forming the ear portion protruding outward in a substantially mountain shape on the terminal. It is possible to form a substantially arc shape extending from the side surface to the outer peripheral edge of the tip of the surface on the vehicle body side, thereby enhancing the design of the automotive member. In addition, by forming the vehicle body side surface outside the groove in the terminal peripheral region and the vehicle body side surface inside the groove substantially flush with each other, the wide vehicle body side surface extending inside and outside the groove is the fixing surface. can be used as Therefore, it is possible to obtain a sufficient fixing area for the automotive member, and to ensure sufficient fixing strength of the automotive member. In addition, the wide surface on the vehicle body side extending from the inside to the outside of the concave groove can be used as a surface for attaching a cushioning material, etc., and the cushioning material can be attached with a sufficient fixing area and fixing strength. In addition, since it is possible to use the surface on the vehicle body side in the vicinity of the substantially arc-shaped terminal as a fixing region, it is possible to prevent the terminal from floating. In addition, it is possible to manufacture and process an automobile member that has a substantially arc-shaped terminal due to the shape in which the concave groove is formed in the vicinity of the terminal, and that the surface of the terminal peripheral region on the vehicle body side is wide and substantially flush as a whole. can be facilitated. In addition, it is possible to increase the rigidity of the automotive member and achieve a significant weight reduction. In addition, the structure in which the periphery of the foamed portion is covered with the skin portion can further enhance the design of the automotive member. In addition, by using a core-back injection foam molding, the foam structure can be easily controlled, and it is possible to easily obtain an automotive member of a foamed resin molding more suitable for the type of member. In addition, since the portion closer to the terminal than the groove has the foamed portion, the size of the portion closer to the terminal than the groove can be increased, and the area of the surface on the vehicle body side outside the groove can be increased. It is possible to further ensure the use of the wide surface on the vehicle body side extending inside and outside the groove as a fixing surface.

The automobile member of the present invention is composed of a foamed resin molded article, and has a concave groove recessed inward from the surface on the vehicle body side at a position near the end of at least a part of the end peripheral region of the outer periphery so as to substantially follow the outer periphery. a fixing surface formed in the terminal peripheral region and fixed to a cushioning material forming a surface on the vehicle body side outside the groove in the terminal peripheral region; Only the two fixing surfaces of the fixing surfaces that are fixed to the cushioning material constituting the vehicle body side surface are formed substantially flush with each other, and the end of the terminal peripheral region extends from the outer surface to the tip of the vehicle body side surface. The foamed resin molding is formed in a substantially arc shape extending to the outer peripheral edge, and the foamed resin molded body is a core-back injection foamed molded body in which the periphery of the foamed portion is covered with a skin portion, and the portion closer to the end than the concave groove is the periphery of the foamed portion. is formed so as to be covered with the skin portion .
According to this, the terminal of the required portion of the outer peripheral edge of the automobile member or the terminal of the entire outer peripheral edge is formed opposite to the outer surface or the vehicle body without forming the ear portion protruding outward in a substantially mountain shape on the terminal. It is possible to form a substantially arc shape extending from the side surface to the outer peripheral edge of the tip of the surface on the vehicle body side, thereby enhancing the design of the automotive member. In addition, by forming the vehicle body side surface outside the groove in the terminal peripheral region and the vehicle body side surface inside the groove substantially flush with each other, the wide vehicle body side surface extending inside and outside the groove is the fixing surface. can be used as Therefore, it is possible to obtain a sufficient fixing area for the automotive member, and to ensure sufficient fixing strength of the automotive member. In addition, the wide surface on the vehicle body side extending from the inside to the outside of the concave groove can be used as a surface for attaching a cushioning material, etc., and the cushioning material can be attached with a sufficient fixing area and fixing strength. In addition, since it is possible to use the surface on the vehicle body side in the vicinity of the substantially arc-shaped terminal as a fixing region, it is possible to prevent the terminal from floating. In addition, it is possible to manufacture and process an automobile member that has a substantially arc-shaped terminal due to the shape in which the concave groove is formed in the vicinity of the terminal, and that the surface of the terminal peripheral region on the vehicle body side is wide and substantially flush as a whole. can be facilitated. In addition, it is possible to increase the rigidity of the automotive member and achieve a significant weight reduction. In addition, the structure in which the periphery of the foamed portion is covered with the skin portion can further enhance the design of the automotive member. In addition, by using a core-back injection foam molding, the foam structure can be easily controlled, and it is possible to easily obtain an automotive member of a foamed resin molding more suitable for the type of member. In addition, since the portion closer to the terminal than the groove has the foamed portion, the size of the portion closer to the terminal than the groove can be increased, and the area of the surface on the vehicle body side outside the groove can be increased. It is possible to further ensure the use of the wide surface on the vehicle body side extending inside and outside the groove as a fixing surface.

A method for manufacturing an automobile member of the present invention is a method of manufacturing an automobile member of the present invention, wherein a cavity having a substantially L-shaped cross section provided between a fixed mold and a movable mold is provided with a foaming melt. The method comprises a first step of filling resin and a second step of moving the movable mold away from the fixed mold to foam the expandable molten resin to form the automotive member. .
According to this method, an automotive member having a predetermined shape can be easily obtained by filling a foamable molten resin into a cavity having a cavity having a substantially L-shaped cross section and performing core-back injection foam molding.

In the method for manufacturing an automotive member of the present invention, the movable molds include a first movable mold and a second movable mold, and the substantially L-shaped outer surface of the substantially L-shaped cavity in cross section is partitioned by the fixed mold, The substantially L-shaped inner surface of the cavity having the substantially L-shaped cross section is partitioned by the first movable mold, and the tip surface of the cavity having the substantially L-shaped cross section is partitioned by the second movable mold, and the first step is performed. in the step, filling the foamable molten resin into the substantially L-shaped cavity surrounded by the fixed mold, the first movable mold, and the second movable mold; is stationary, the first movable mold is moved away from the fixed mold to foam the foamable molten resin to form the automotive member.
According to this, by moving the first movable mold while pressing the tip of the foamable molten resin with the second movable mold to foam, the surface on the vehicle body side outside the groove in the terminal peripheral region and the surface inside the groove are formed. It is possible to reliably form an automotive member with a substantially flush surface on the vehicle body side with high accuracy. Further, it is possible to easily and reliably obtain a structure in which a portion closer to the end than the groove has a foamed portion, and to reliably increase the area of the region that can be used as the fixing surface of the surface on the vehicle body side outside the groove. can be done.

ADVANTAGE OF THE INVENTION According to this invention, in the automotive member which comprises a foamed resin molded object, designability can be improved and sufficient fixing area|region and fixing strength can be ensured.

BRIEF DESCRIPTION OF THE DRAWINGS The front view which looked at the member for motor vehicles of embodiment by this invention from the outside. FIG. 2 is a rear view of the automotive member of the embodiment viewed from the inside. FIG. 2 is an end view of a state in which the automotive member of the embodiment is fixed to the vehicle body; BRIEF DESCRIPTION OF THE DRAWINGS Sectional explanatory drawing which shows a part of state which partition-formed the cavity by the fixed type|mold, the 1st movable type|mold, and the 2nd movable type|mold which manufacture the member for motor vehicles of embodiment. FIG. 5 is a cross-sectional explanatory view showing a part of the state in which the cavity in FIG. 4 is filled with foamable molten resin; FIG. 6 is a cross-sectional explanatory view showing a part of the state in which the first movable die is moved away from the fixed die from the state in FIG. 5 ; FIG. 7 is a cross-sectional explanatory view partially showing a state in which the first movable mold and the second movable mold are moved away from the fixed mold from the state of FIG. 6 ; FIG. 11 is an end view of a state in which a modified automobile member according to the present invention is fixed to a vehicle body; FIG. 11 is a cross-sectional explanatory view showing a part of a state in which a cavity is divided and formed by a fixed die and a movable die for manufacturing an automobile member of a modified example. FIG. 10 is a cross-sectional explanatory view showing a part of the state in which the cavity in FIG. 9 is filled with foamable molten resin; FIG. 11 is a cross-sectional explanatory view showing a part of the state in which the movable mold is moved away from the fixed mold from the state of FIG. 10; FIG. 12 is a cross-sectional explanatory view showing a part of the state in which the movable mold is further moved away from the fixed mold from the state of FIG. 11; FIG. 11 is a cross-sectional explanatory view showing a part of a state in which a fixed mold and a movable mold for manufacturing a conventional automobile member are divided into cavities, and the cavities are filled with foamable molten resin. FIG. 14 is a cross-sectional explanatory view showing a part of the state in which the movable mold is moved away from the fixed mold from the state of FIG. 13;

[Automotive member of embodiment and manufacturing method thereof]
As shown in FIGS. 1 to 3, an automobile member 10 according to an embodiment of the present invention is an automobile side sill, which is an automobile exterior member. The foamed resin molding 11 of this embodiment is a core-back injection foamed molding in which the periphery of the foamed portion 111 is covered with the skin portion 112 .

A recessed groove 14 recessed inward from the surface on the vehicle body 20 side is formed in a portion of the outer peripheral edge 12 of the automotive member 10 so as to substantially follow the outer peripheral edge 12 at a position near the end of the terminal peripheral region 13 . The concave groove 14 is formed so as to substantially follow the entire circumference of the outer peripheral edge 12 of the automotive member 10, in addition to the configuration in which it is formed so as to follow a required part of the outer peripheral edge 12 of the automotive member 10. It is also possible to adopt a configuration that

A surface 15n on the vehicle body 20 side outside the groove 14 of the terminal peripheral area 13 and a surface 15m on the vehicle body 20 side inside the groove 14 of the terminal peripheral area 13 are substantially flush with each other. Further, the terminal 16 of the terminal peripheral region 13 is formed in a substantially arc shape from the outer surface 17 of the automotive member 10 to the outer peripheral edge 12 at the tip of the surface 15n on the vehicle body 20 side.

In the automotive member 10 of the present embodiment, the portion closer to the inner side than the concave groove 14 is formed so that the periphery of the foamed portion 111 is covered with the skin portion 112, and substantially corresponds to the substantially arc-shaped terminal 16. The portion closer to the end than the recessed groove 14 is also formed so that the periphery of the foamed portion 111 is covered with the skin portion 112, and the portion of the foamed portion 111 on the outer surface side of either the surface 15m or the surface 15n is also formed. It is formed so that the periphery is covered with the skin portion 112 .

In the automotive member 10 of the present embodiment, both the outer surface 15n and the inner surface 15m of the groove 14 of the terminal peripheral region 13 can be used as surfaces for fixing to the vehicle body 20 or as surfaces for attaching a cushioning material. For example, as shown in FIG. 3, it is possible to apply a double-sided tape 21 over both surfaces 15m and 15n, and apply and fix the automotive member 10 to the vehicle body 20 via the double-sided tape 21. .

When manufacturing the automotive member 10 of the present embodiment, preferably, a fixed mold 31, and core-back injection using a first movable mold 32 and a second movable mold 33 arranged so as to face the fixed mold 31 are performed. Manufactured by foam molding, first, a cavity 34 having a substantially L-shaped cross section is provided between the fixed mold 31 and the first movable mold 32 and the second movable mold 33 to form a cavity. A substantially L-shaped outer surface 341 of the cavity 34 having a substantially L-shaped cross section is defined by the fixed mold 31, and a substantially L-shaped inner surface 342 of the cavity 34 having a substantially L-shaped cross section is defined by the first movable mold 32. , the tip surface 343 of the cavity 34, which is substantially L-shaped in cross section, is defined by the first movable mold 32 and the second movable mold 33 arranged adjacently (see FIG. 4).

Then, the foamable molten resin MR is injected and filled into a cavity 34 having a substantially L-shaped cross-sectional view provided between the fixed mold 31 and the first movable mold 32 and the second movable mold 33, and the fixed mold 31 is , the first movable mold 32 and the second movable mold 33, and the cavity 34 having a substantially L-shaped cross section is also filled with the foamable molten resin MR. (See FIG. 5). As the material of the foamable molten resin MR, it is possible to use appropriate materials such as polypropylene-based materials and polyethylene-based materials.

Thereafter, as shown in FIG. 6, the adjacent first movable mold 32 is moved away from the fixed mold 31 while the second movable mold 33 is stationary, and the pressure is released to foam the foamable molten resin MR. , forming the automotive component 10 . At this time, the second movable mold 33 is fixed and foams the foamable molten resin MR while holding the foamable molten resin MR with the resin contact surface 331 at the position of the tip surface 343 . Also, the resin contact surface 321 of the first movable mold 32 at least adjacent to the second movable mold 33 is retracted and moved to a position where it is substantially flush with the resin contact surface 331 of the second movable mold 33 . At this position, the first movable mold 32 is stopped and the foamable molten resin MR is foamed to form the automotive member 10 in which the recessed groove 14 is formed and the foamed portion 111 is covered with the skin portion 112 .

After the foaming of the foamable molten resin MR is completed and the automotive member 10 is formed, both the first movable mold 32 and the second movable mold 33 are separated from the fixed mold 31 as shown in FIG. , the mold is opened, and the molded automobile member 10 is taken out to obtain the automobile member 10 .

According to this embodiment, the terminal 16 of the outer peripheral edge 12 of the automotive member 10 at a required portion or the entire terminal of the outer peripheral edge 12 is formed without forming an ear portion protruding outward in a substantially mountain shape. The outer surface 17 or the side surface opposite to the vehicle body can be formed in a substantially arc shape from the side opposite to the vehicle body to the outer peripheral edge 12 at the tip of the surface 15n on the vehicle body side. In addition, by forming the vehicle body side surface 15n outside the groove 14 and the vehicle body side surface 15m inside the groove 14 in the terminal peripheral region 13 to be substantially flush with each other, a wide vehicle body covering the inside and outside of the groove 14 is formed. It becomes possible to use the side surfaces 15m, 15n as fixing surfaces. Therefore, a sufficient fixing region for the automobile member 10 can be obtained, and sufficient fixing strength for the automobile member 10 can be secured. In addition, the wide surfaces 15m and 15n on the vehicle body side extending inside and outside the groove 14 can be used as surfaces for attaching a cushioning material or the like, and the cushioning material or the like can be attached with a sufficient fixing area and fixing strength. . Further, since the substantially arc-shaped surface 15n on the vehicle body side in the vicinity of the terminal can be used as a fixing region, the terminal 16 can be prevented from floating. In addition, due to the shape in which the concave groove 14 is formed in the vicinity of the terminal, it has a substantially arc-shaped terminal 16, and the surfaces 15m and 15n of the terminal peripheral region 13 on the vehicle body side as a whole have a wide and substantially flush shape. Manufacture and processing of the member 10 can be facilitated.

In addition, by forming the foamed resin molding 11 as a core-back injection foamed molding in which the periphery of the foamed portion 111 is covered with the skin portion 112, the rigidity of the automotive member 10 can be increased and the weight can be significantly reduced. can be planned. Moreover, the structure in which the periphery of the foamed portion 111 is covered with the skin portion 112 can further enhance the design of the automobile member 10 . In addition, by using the core-back injection foam molding, it becomes easy to control the foam structure, and it is possible to easily obtain the automobile member 10 of the foamed resin molding 11 more suitable for the type of member.

In addition, the portion closer to the terminal than the groove 14 has the foamed portion 111, so that the size of the portion closer to the terminal than the groove 14 is increased, and the area of the surface 15n on the vehicle body side outside the groove 14 is increased. It is possible to further ensure the use of the wide surfaces 15m and 15n on the vehicle body side extending inside and outside the recessed groove 14 as fixing surfaces.

Further, the automotive member 10 having a predetermined shape can be easily obtained by filling the foamable molten resin MR into the cavity having the cavity 34 having a substantially L-shaped cross section and manufacturing the automotive member 10 by core-back injection foam molding. be able to. In addition, by moving the first movable mold 32 while pressing the front end of the foamable molten resin MR with the second movable mold 33 to foam, the surface 15n on the vehicle body side outside the groove 14 of the terminal peripheral region 13 and the concave portion are formed. It is possible to reliably form the automotive member 10 with a substantially flush surface 15m on the vehicle body side inside the groove with high precision. Furthermore, the structure having the foamed portion 111 in the portion closer to the end than the groove 14 can be easily and reliably obtained, and the area of the region that can be used as the fixing surface of the surface 15n on the vehicle body side outside the groove 14 can be reliably secured. can be increased to

[Scope of invention disclosed in this specification]
In addition to the inventions, embodiments, and modifications thereof listed as inventions, the invention disclosed in this specification can be changed to other contents disclosed in this specification to the extent applicable. What is specified, what is specified by adding other content disclosed in this specification to these contents, or these partial contents are deleted to the extent that partial effects can be obtained and general concepts Include what you specify. The invention disclosed in this specification also includes the following modifications and additional content.

For example, in the automotive member 10 of the above-described embodiment, the portion closer to the end than the concave groove 14 is formed so that the periphery of the foamed portion 111 is covered with the skin portion 112, but the automotive member of the present invention is a structure in which, like the automotive member 10a of the modified example of FIG. A part in which the substantially corresponding part is the skin part 112 is also included.

In the automotive member 10a of the modified example of FIG. The area of the surface 15n on the side of the vehicle body 20 outside the concave groove 14 is smaller than the area in the above embodiment. Other basic configurations of the automobile member 10a of the modified example are the same as those of the automobile member 10 of the embodiment.

When manufacturing the automotive member 10a of the modified example, for example, core-back injection foam molding is performed using a fixed mold 35 and a movable mold 36 arranged so as to face the fixed mold 35. and a movable mold 36, a cavity 37 having a substantially L-shaped cross section is provided to form a cavity. A substantially L-shaped outer side surface 371 of the cavity 37 having a substantially L-shaped cross section is defined by the fixed mold 35, and a substantially L-shaped inner side surface 372 and a tip surface 373 of the substantially L-shaped cavity 37 when viewed in cross section are defined by the movable mold 36. (See FIG. 9). The tip of the cavity 37, which is approximately L-shaped in cross section, near the tip end surface 373 is formed with the skin portion 112 of the portion substantially corresponding to the inner side of the approximately arc-shaped end 16a. The thickness is smaller than the point.

Then, a cavity 37 having a substantially L-shaped cross section provided between the fixed mold 35 and the movable mold 36 is filled with the foamable molten resin MR, and the cross section surrounded by the fixed mold 35 and the movable mold 36 is filled. The substantially L-shaped cavity 37 is also filled with the foamable molten resin MR to create a state in which the substantially L-shaped cross section is filled with the foamable molten resin MR (see FIG. 10). It should be noted that suitable materials such as polypropylene-based materials and polyethylene-based materials can also be used for the material of the foamable molten resin MR of the modified example.

Thereafter, as shown in FIG. 11, the movable mold 36 is moved away from the fixed mold 35, and the foamable molten resin MR is foamed by releasing the pressure, so that the groove 14 is formed and the foamed portion 111 becomes the skin portion 112. to form the automotive member 10a covered with. At this time, a skin portion 112 is formed at a portion substantially corresponding to the inner side of the substantially arcuate end 16a.

After the foaming of the foamable molten resin MR is completed and the automobile member 10a is formed, as shown in FIG. The molded automobile member 10a is taken out to obtain the automobile member 10a. Incidentally, it is possible to use a modified configuration similar to that of the automobile member 10 also for the automobile member 10a.

In the automobile member 10a of the modified example, the size of the portion closer to the end than the groove 14 is smaller than that of the automobile member 10 of the above-described embodiment, and the area of the surface 15n on the vehicle body side outside the groove 14 is reduced. Although the area that can be used as the surface to be fixed to the vehicle body 20 or the surface to which the cushioning material is attached is reduced, the corresponding effects can be obtained from the structure corresponding to the automotive member 10 of the other embodiments and the manufacturing method thereof.

Further, the automotive member 10 of the above-described embodiment and the automotive member 10a of the modified example can be used for appropriate automotive exterior members other than side sills, which are made of foamed resin moldings, such as fenders and front grilles. , tailgate door, etc. Further, the automobile member of the present invention is preferably used as an automobile exterior member, but it can also be used as an automobile interior member. Suitable automotive components are included.

INDUSTRIAL APPLICABILITY The present invention can be applied to various automobile parts including side sills, fenders, front grilles, tailgate doors, etc., which are made of foamed resin moldings.

DESCRIPTION OF SYMBOLS 10, 10a... Automotive member 11... Foaming resin molding 111... Foaming part 112... Skin part 12... Outer peripheral edge 13... Terminal peripheral area 14... Groove 15m, 15n... Surface of terminal peripheral area 16, 16a... Terminal 17... Outer surface 20 Car body 21 Double-sided tape 31 Fixed mold 32 First movable mold 321 Resin contact surface 33 Second movable mold 331 Resin contact surface 34 Approximately L-shaped cavity in cross section 341 Approximately L-shaped outside Side surface 342 Approximately L-shaped inner surface 343 Tip surface 35 Fixed mold 36 Movable mold 37 Approximately L-shaped cavity in cross section 371 Approximately L-shaped outer surface 372 Approximately L-shaped inner surface 373 Tip surface MR Foaming Flexible molten resin 101 Fixed mold 102 Movable mold 103 Cavity 104 Expandable molten resin 105 Foamed resin molding 106 Ears

Claims (5)

Consists of a foamed resin molded body,
A recessed groove recessed inward from the surface on the vehicle body side is formed in at least a part of the peripheral edge of the terminal peripheral region at a position near the terminal so as to substantially follow the outer peripheral edge,
In the terminal peripheral region, a fixing surface fixed to the vehicle body constituting a vehicle body side surface outside the groove in the terminal peripheral region, and a vehicle body side surface inside the groove in the terminal peripheral region Only two of the fixing surfaces to be fixed to the vehicle body constituting the are formed substantially flush with each other,
The terminal of the terminal peripheral region is formed in a substantially arc shape from the outer surface to the outer peripheral edge of the tip of the surface on the vehicle body side ,
The foamed resin molded product is a core-back injection foamed product in which the periphery of the foamed portion is covered with a skin portion,
A member for an automobile , wherein a portion closer to an end than the concave groove is formed so that the periphery of the foamed portion is covered with the skin portion . Consists of a foamed resin molded body,
A recessed groove recessed inward from the surface on the vehicle body side is formed in at least a part of the peripheral edge of the terminal peripheral region at a position near the terminal so as to substantially follow the outer peripheral edge,
In the terminal peripheral region, a fixing surface to which the double-sided tape is attached constituting a surface on the vehicle body side outside the groove in the terminal peripheral region, and a fixing surface on the vehicle body side inside the groove in the terminal peripheral region Only two fixing surfaces of the fixing surfaces to which the double-sided tape constituting the surface is attached are formed to be substantially flush with each other, and
The terminal of the terminal peripheral region is formed in a substantially arc shape from the outer surface to the outer peripheral edge of the tip of the surface on the vehicle body side,
The foamed resin molded product is a core-back injection foamed product in which the periphery of the foamed portion is covered with a skin portion,
A member for an automobile, wherein a portion closer to an end than the concave groove is formed so that the periphery of the foamed portion is covered with the skin portion . Consists of a foamed resin molded body,
A recessed groove recessed inward from the surface on the vehicle body side is formed in at least a part of the peripheral edge of the terminal peripheral region at a position near the terminal so as to substantially follow the outer peripheral edge,
In the terminal peripheral region, a fixing surface fixed to a cushioning material constituting a surface on the vehicle body side outside the groove in the terminal peripheral region, and a fixing surface on the vehicle body side inside the groove in the terminal peripheral region Only two fixing surfaces of the fixing surfaces that are fixed to the cushioning material constituting the surface are formed to be substantially flush with each other, and
The terminal of the terminal peripheral region is formed in a substantially arc shape from the outer surface to the outer peripheral edge of the tip of the surface on the vehicle body side,
The foamed resin molded product is a core-back injection foamed product in which the periphery of the foamed portion is covered with a skin portion,
A member for an automobile, wherein a portion closer to an end than the concave groove is formed so that the periphery of the foamed portion is covered with the skin portion . A method for manufacturing an automobile member according to any one of claims 1 to 3 ,
a first step of filling a cavity having a substantially L-shaped cross-sectional cavity provided between a fixed mold and a movable mold with a foamable molten resin;
A method of manufacturing an automobile member, comprising: a second step of forming the automobile member by moving the movable mold away from the fixed mold to foam the expandable molten resin. Having a first movable type and a second movable type as the movable type,
The substantially L-shaped outer surface of the cavity which is substantially L-shaped in cross section is partitioned by the fixed die, the substantially L-shaped inner side of the cavity which is substantially L-shaped in cross section is partitioned by the first movable die, and the partitioning the tip surface of the substantially L-shaped cavity with the second movable mold;
In the first step, the foamable molten resin is filled into the substantially L-shaped cavity in cross section surrounded by the fixed mold, the first movable mold, and the second movable mold;
In the second step, the first movable mold is moved away from the stationary mold while at least the second movable mold is stationary to foam the foamable molten resin to form the automotive member. 5. The method of manufacturing an automobile member according to claim 4, wherein

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