JP4890177B2 - Resin parts for vehicles and radiator grills - Google Patents

Description

The present invention relates to a vehicle resin component and a radiator grill .

2. Description of the Related Art Conventionally, there is known a resin component mounting structure in which a bolt head for mounting a resin component on a vehicle body is embedded in the resin component by insert molding or the like (for example, see Patent Document 1).
Japanese Utility Model Publication No. 1-106608

  By the way, in the resin component mounting structure as described above, when a load acts between the resin component and the bolt due to vibration of the vehicle body, stress may concentrate on the resin component near the corner of the bolt head. For this reason, when using a hard resin such as polycarbonate or acrylic resin as a material for resin parts, that is, a resin material having physical properties that breaks with little plastic deformation when a load is applied, the stress as described above is used. Some measures to avoid concentration are required.

In consideration of the above facts, the present invention provides a resin component for a vehicle and a radiator grille that can suppress the occurrence of stress concentration in the resin component body starting from an attachment member for attaching the resin component body made of hard resin to the vehicle body. Is the purpose.

The vehicle resin component according to the first aspect of the present invention, a resin component body made of a hard resin is embedded in the resin component body by insert molding, the mounting member attached to the vehicle body is mounted, wherein the resin component body A curved surface portion having a convex curved surface toward the resin component main body on the outer peripheral portion thereof, and exposed to the outside of the resin component main body on the back surface of the resin component main body, and from the curved surface portion to the back surface of the resin component main body The part which reaches is an inclined part, and the angle formed by the outer peripheral surface of the inclined part and the back surface of the resin component main body is an obtuse angle, and the length and width are shorter than the curved surface part and the inclined part. Is formed between the curved surface portion and the inclined portion , and has a soft resin portion made of a soft resin in which a part of the resin component main body enters into the concave portion .
In addition, “being embedded” according to claim 1 means that all or a part of the soft resin portion is inside the hole provided in the resin component main body.
In addition, the “back surface of the resin component main body” according to claim 1 is an attachment surface of the resin component main body to the vehicle body.

In the vehicle resin component according to the first aspect, the soft resin portion formed integrally with the resin component main body is interposed between the resin component main body made of hard resin and the mounting member attached to the vehicle body. For this reason, when a load acts between the resin component main body and the mounting member due to vibration of the vehicle body or the like, this load can be absorbed by the soft resin portion. Therefore, it can suppress that stress concentration arises in a resin component main body from an attachment member.
Moreover, in this resin component for vehicles, since the curved-surface part provided in the outer peripheral part of the soft resin part embedded at the resin component main body contacts the resin component main body, the load acted between the soft resin part and the resin component main body. In this case, it is possible to suppress the stress concentration from occurring in the resin component main body.
Moreover, in this vehicle resin component, the angle formed by the outer peripheral surface of the inclined portion of the soft resin portion and the back surface of the resin component body is an obtuse angle. For this reason, when a load acts between an inclination part and a resin component main body, it can suppress that stress concentration arises in the back side part of a resin component main body.
Furthermore, in this resin component for vehicles, a part of the resin component main body enters the concave portion between the curved surface portion and the inclined portion of the soft resin portion. Therefore, it can suppress that a soft resin part falls out of a resin component main body.

  According to a second aspect of the present invention, in the vehicle resin component according to the first aspect, the mounting member is embedded in the soft resin portion by insert molding.

  In addition, “being embedded” according to claim 2 means that all or part of the attachment member has entered the inside of the hole provided in the soft resin portion.

  In the vehicle resin component according to the second aspect, the attachment member for attaching the resin component body to the vehicle body is embedded in the soft resin portion in advance by insert molding. Therefore, attachment to the vehicle body can be facilitated.

A resin component for a vehicle according to a third aspect of the present invention is the resin component for a vehicle according to the first or second aspect , wherein the mounting member has a screw portion, and the soft resin portion is the screw. It is characterized by being formed long when viewed from the axial direction of the part.

In the vehicle resin component according to the third aspect , the soft resin portion embedded in the resin component main body is formed long when viewed from the axial direction of the screw portion of the mounting member. Therefore, relative rotation between the resin component main body and the soft resin portion can be suppressed when a load around the axis of the screw portion acts between the resin component main body and the soft resin portion.

A resin component for a vehicle according to the invention described in claim 4 has a resin component body made of hard resin, a curved surface portion having a convex curved surface on an outer peripheral portion, and an embedded portion embedded in the resin component body by insert molding, And an attachment portion that is provided integrally with the embedded portion and is attached to a vehicle body, and the embedded portion is exposed to the outside of the resin component main body on the back surface of the resin component main body, and A portion from the curved surface portion to the back surface of the resin component main body is an inclined portion, and an angle formed by the outer peripheral surface of the inclined portion and the back surface of the resin component main body is an obtuse angle, and from the curved surface portion and the inclined portion, A recess having a short length and a width is formed between the curved surface portion and the inclined portion, and an attachment member into which a part of the resin component main body enters the recess .

Note that “being embedded” according to claim 4 means that all or a part of the embedded portion has entered the inside of the hole provided in the resin component main body.
Further, the “back surface of the resin component main body” described in claim 4 is an attachment surface of the resin component main body to the vehicle body.

In the resin component for a vehicle according to claim 4 , since the embedded portion of the mounting member embedded in the resin component main body made of hard resin by insert molding has a curved surface portion provided on the outer peripheral portion thereof, the resin component main body is in contact. When a load is applied between the resin component main body and the mounting member due to vibration of the vehicle body or the like, it is possible to prevent stress concentration from occurring in the resin component main body. Therefore, it is possible to suppress the occurrence of cracks in the resin component body starting from the mounting member.

Further, in the vehicle resin parts this, the outer peripheral surface of the inclined portion of the embedded portion, the angle between the back surface of the resin component body is an obtuse angle. For this reason, when a load acts between an inclination part and a resin component main body, it can suppress that stress concentration arises in the back side part of a resin component main body.

Moreover, in the vehicle resin parts this, part of the resin component body is penetrated into the recess between the inclined portion curved portion of the embedded portion. Therefore, it can suppress that an embedding part (attachment member) falls from a resin component main body.
According to a fifth aspect of the present invention, there is provided the vehicle resin component according to the fourth aspect, wherein the attachment portion is a screw portion, and the embedded portion is formed from an axial direction of the screw portion. It is characterized by being formed to be long when viewed.
In the vehicle resin component according to the fifth aspect, the embedded portion of the mounting member embedded in the resin component main body is formed to be long when viewed from the axial direction of the screw portion. Therefore, when a load around the axis of the bolt acts between the resin component main body and the embedded portion (attachment member), it is possible to suppress relative rotation between the resin component main body and the attachment member.

A resin component for a vehicle according to a sixth aspect of the present invention is the resin component for a vehicle according to any one of the first to fifth aspects, wherein the recess has a continuous outer peripheral surface in contact with the resin component main body. It is characterized by being formed by a curved surface.

In the vehicle resin component according to claim 6, since the outer peripheral surface of the concave portion in contact with the resin component body is formed by a continuous curved surface, when a load between the resin component body and a concave portion is applied, the resin It can suppress that stress concentration arises in a contact part with the recessed part of a component main body.

According to a seventh aspect of the present invention, there is provided the vehicle resin component according to any one of the first to sixth aspects, wherein the vehicle resin component is attached to the resin component main body at a position different from the attachment member. It is characterized by having a case and a fastening member that is attached to the case so as to be relatively movable in the direction of contact with and away from the attachment member and that is fastened to the vehicle body.

In the vehicle resin component according to claim 7 , the fastening member fastened to the vehicle body can be moved relative to the case in which the fastening member is fastened to the mounting member with respect to the case attached to the resin component main body at a position different from the attachment member. It is attached. For this reason, even if a positional deviation occurs between the fastening member and a fastening portion (for example, a hole into which the fastening member is inserted) of the fastening member in the state where the resin component main body is positioned on the vehicle body by the mounting member. By moving the fastening member relative to the case, that is, the resin component main body, the above positional deviation can be eliminated.

As described above, in the vehicle resin component according to claim 1 of the present invention, stress concentration can be suppressed from occurring in the resin component body starting from the mounting member, and stress concentration can be generated in the back side portion of the resin component body. Generation | occurrence | production can be suppressed and it can suppress that a soft resin part falls out of a resin component main body.

  With the vehicle resin component according to claim 2 of the present invention, it is possible to facilitate attachment to the vehicle body.

In the vehicle resin component according to claim 3 of the present invention, relative rotation of the resin component main body and the mounting member can be suppressed.

In the vehicle resin component according to claim 4 of the present invention, it is possible to suppress the stress concentration from occurring in the resin component main body starting from the mounting member, and to suppress the stress concentration from occurring in the back side portion of the resin component main body, In addition, it is possible to suppress the attachment member from dropping from the resin component main body.
In the vehicle resin component according to claim 5 of the present invention, relative rotation between the resin component main body and the mounting member can be suppressed.

In the vehicle resin component according to claim 6 of the present invention, it is possible to suppress the stress concentration from occurring in the contact portion with the recess of the resin component main body.

In the resin component for a vehicle according to claim 7 of the present invention, even when a displacement occurs between the fastening member and the fastening portion of the fastening member to the vehicle body in a state where the resin component body is positioned on the vehicle body by the mounting member. This positional deviation can be eliminated.

<First Embodiment>
FIG. 1 shows a front view of an automobile 12 in which a radiator grill (front grill) 10 as a vehicle resin part according to a first embodiment of the present invention is attached to the front of a vehicle body. FIG. 2 is a front view showing a partial configuration of the radiator grill 10. Further, FIG. 3 shows a cross-sectional view taken along line 3-3 of FIG. In the figure, an arrow FR indicates the vehicle body front direction, an arrow UP indicates the vehicle body upward direction, and an arrow W indicates the vehicle width direction. In FIG. 3, hatching of some members is omitted for convenience of explanation.

  The radiator grill 10 has a radiator grill body 14 as a resin component body formed of a hard transparent or translucent resin material (for example, an amorphous resin such as polycarbonate or acrylic, or ABS). The radiator grill body 14 includes an outer peripheral frame portion 16 formed in a frame shape, an emblem mounting portion 18 provided at a center portion in the vehicle width direction inside the outer peripheral frame portion 16, and both end portions in the vehicle width direction of the outer peripheral frame portion 16. And the emblem mounting portion 18 are provided with a plurality of lattice portions 20 spanned along the vehicle width direction. A lens cut and a rib (not shown) are formed on the back surface of the radiator grill body 14 (the rear surface of the vehicle body and the mounting surface to the vehicle body), and the radiator grill body 14 has a glittering feeling due to these lens cuts and ribs. And a sense of depth.

  As shown in FIG. 3, on the back surface 16A side of the outer peripheral frame portion 16, a soft resin portion molded integrally with the outer peripheral frame portion 16 with a soft resin material (for example, a crystalline resin such as polypropylene or polyethylene). 22 and a plurality of bolts 24 as attachment members attached to the soft resin portion 22 are provided. The soft resin portion 22 is embedded in the outer peripheral frame portion 16 by insert molding, and the head 24A of the bolt 24 is embedded in the soft resin portion 22 by insert molding.

  As shown in FIGS. 4A and 4B, the soft resin portion 22 has a curved surface portion 22 </ b> A having a convex curved surface toward the outer peripheral frame portion 16, most of the outer peripheral portion in contact with the outer peripheral frame portion 16. It is formed long when viewed from the axial direction of the threaded portion 24B of the bolt 24. A part of the curved surface portion 22A is formed in a spherical shape.

  Further, the soft resin portion 22 is exposed to the outside of the outer peripheral frame portion 16 at the back surface 16A of the outer peripheral frame portion 16, and a portion from the curved surface portion 22A to the rear surface 16A of the outer peripheral frame portion 16 is an inclined portion 22B. As shown in FIG. 5, the angle θ formed by the outer peripheral surface of the inclined portion 22B and the rear surface 16A of the outer peripheral frame portion 16 is an obtuse angle. In addition, it is good also as a structure by which the outer peripheral surface of inclined part 22B was formed in the curved surface shape of the concave curved surface toward the outer peripheral frame part 16. FIG.

  Between the curved surface portion 22A and the inclined portion 22B, a constricted portion 22C is formed as a concave portion for reducing the outer dimension of the soft resin portion 22, and the soft resin portion 22 is formed between the curved surface portion 22A and the inclined portion 22B. It is wrapped in between. That is, the curved surface portion 22A and the inclined portion 22B are formed to have substantially the same length dimension L1 and the width dimension L2, but the length dimension L3 of the constricted portion 22C is the curved surface portion 22A and the inclined portion 22B. The width dimension L4 of the constricted portion 22C is shorter than the width dimension L2 of the curved surface portion 22A and the inclined portion 22B. A part of the outer peripheral frame portion 16 enters inside the constricted portion 22 </ b> C so that the soft resin portion 22 is prevented from falling off the outer peripheral frame portion 16. Further, the constricted portion 22 </ b> C is formed by a curved surface having a continuous outer peripheral surface in contact with the outer peripheral frame portion 16.

  On the other hand, the bolt 24 has a flange portion 24C formed between the head portion 24A and the screw portion 24B. The flange portion 24C has a front portion of the vehicle body embedded with the soft resin portion 22 and a rear portion of the vehicle body. The end of the projection protrudes from the soft resin portion 22 toward the rear side of the vehicle body. The rear end portion of the flange portion 24 </ b> C is in contact with the front end portion of the hood outer 26 of the automobile 12, and the screw portion 24 </ b> B is inserted through a through hole 26 </ b> A formed in the front end portion of the hood outer 26. A nut 28 is screwed onto the screw portion 24B, whereby the bolt 24 is fastened to the hood outer 26, and the radiator grill body 14 is attached to the front of the vehicle body of the automobile 12.

  Next, the operation of the first embodiment will be described.

  In the radiator grill 10 having the above-described configuration, the bolt 24 is attached to the soft resin portion 22 formed integrally with the outer peripheral frame portion 16 of the radiator grill main body 14 made of hard resin, and the bolt 24 is attached to the vehicle body. That is, the soft resin portion 22 is interposed between the radiator grill body 14 made of hard resin and the bolt 24. For this reason, when a load acts between the outer peripheral frame portion 16 and the bolt 24 due to vibration of the vehicle body or the like, the soft resin portion 22 is elastically deformed to absorb the load. Therefore, it is possible to suppress stress concentration from occurring in the outer peripheral frame portion 16 starting from the bolt 24.

  In the case where the radiator grill body 14 is formed of an amorphous hard resin such as polycarbonate or acrylic, if the solvent contained in gasoline or wax adheres to the radiator grill body 14, the hard material constituting the radiator grill body 14 will be described. The resin may deteriorate. For this reason, when the head 24A of the bolt 24 is directly embedded in the radiator grill body 14 (outer peripheral frame portion 16), the outer peripheral frame portion 16 is deteriorated by the solvent between the outer peripheral frame portion 16 and the bolt 24. When a load is applied, cracks (so-called solvent cracks or solvent cracks) starting from the corners of the head 24A are likely to occur. However, in the radiator grill 10 according to the first embodiment, as described above, the outer peripheral frame portion. Since the load which acts between 16 and the volt | bolt 14 can be absorbed by the soft resin part which consists of crystalline resin, it is possible to suppress the above solvent cracks.

  Further, in the radiator grill 10, the curved surface portion 22 </ b> A provided on the outer peripheral portion of the soft resin portion 22 embedded in the outer peripheral frame portion 16 is in contact with the outer peripheral frame portion 16, and therefore, between the soft resin portion 22 and the outer peripheral frame portion 16. It is possible to more effectively suppress the stress concentration from occurring in the outer peripheral frame portion 16 when a load is applied to the outer peripheral frame portion 16.

  Further, in the radiator grill 10, an angle formed by the outer peripheral surface of the inclined portion 22 </ b> B of the soft resin portion 22 and the back surface 16 </ b> A of the outer peripheral frame portion 16 is an obtuse angle. For this reason, when a load acts between the inclined portion 22 </ b> B and the outer peripheral frame portion 16, it is possible to suppress stress concentration from occurring in the back side portion of the outer peripheral frame portion 16.

  Further, in the radiator grill 10, a constricted portion 22C between the curved surface portion 22A and the inclined portion 22B of the soft resin portion 22 is formed, and a part of the outer peripheral frame portion 16 enters inside the constricted portion 22C. Yes. Therefore, it is possible to suppress the soft resin portion 22 from dropping from the outer peripheral frame portion 16.

  Further, in the radiator grill 10, the outer peripheral surface of the constricted portion 22 </ b> C is formed by a continuous curved surface, and the curved outer peripheral surface is in contact with the outer peripheral frame portion 16. For this reason, when a load acts between the outer periphery frame part 16 and the soft resin part 22, it can suppress that stress concentration arises in the contact part with the constriction part 22C of the outer periphery frame part 16. FIG.

  Moreover, in the radiator grill 10, the soft resin portion 22 embedded in the outer peripheral frame portion 16 is formed to be long when viewed from the axial direction of the screw portion 24 </ b> B of the bolt 24. Therefore, when a load around the axis of the screw portion 24B is applied between the outer peripheral frame portion 16 and the soft resin portion 22, that is, when the nut 28 is screwed to the bolt 24, the soft resin portion 22 is It is possible to suppress relative rotation (co-rotation) with respect to the portion 16.

  In the first embodiment, the soft resin portion 22 and the bolt 24 (attachment member) are provided on the outer peripheral frame portion 16 of the radiator grill body 14. However, the present invention is not limited to this, and the soft resin portion and The mounting member may be provided on the emblem mounting portion 18 or the lattice portion 20. This also applies to other embodiments of the present invention described below.

  Moreover, in the said 1st Embodiment, although it was set as the structure by which the volt | bolt 24 as an attachment member was attached to the soft resin part 22, it is not restricted to this, As a structure by which the nut as an attachment member was attached to the soft resin part Also good. Moreover, it is good also as a structure by which the screw hole for screwing a volt | bolt in the soft resin part was formed. This also applies to other embodiments of the present invention described below.

Next, another embodiment of the present invention will be described. In addition, about the structure and operation | movement fundamentally similar to the said 1st Embodiment, the same sign as the said 1st Embodiment is provided, and the description is abbreviate | omitted. The second to fourth embodiments are used as reference examples.

  The radiator grill 40 has basically the same configuration as that of the first embodiment, but the configuration of the soft resin portion 42 is different from that of the soft resin portion 22 according to the first embodiment. The soft resin portion 42 is formed in a stepped shape having a large-diameter portion 42A and a small-diameter portion 42B. Like the soft resin portion 42 according to the first embodiment, the soft resin portion 42 is formed on the outer peripheral frame portion 16 by insert molding. Embedded. The corners of the outer peripheral portion of the soft resin portion 42 in contact with the outer peripheral frame portion 16 are formed in a curved surface shape.

Even in the radiator grill 40 having the above-described configuration, when a load is applied between the outer peripheral frame portion 16 and the bolt 24 due to vibration of the vehicle body or the like, the load can be absorbed by the soft resin portion 42. Therefore, it is possible to suppress stress concentration from occurring in the outer peripheral frame portion 16 starting from the bolt 24.
<Third Embodiment>
FIG. 7 is a sectional view showing a partial configuration of a radiator grill 50 as a vehicle resin component according to the third embodiment of the present invention. In FIG. 7, hatching of some members is omitted for convenience of explanation.

  The radiator grille 50 has basically the same configuration as that of the first embodiment, but the configuration of the outer peripheral frame portion 52 of the radiator grill body 14 is the same as that of the outer peripheral frame portion 16 according to the first embodiment. Is different. The outer peripheral frame portion 52 includes a frame main body 52A arranged along the vehicle body longitudinal direction, and a flange portion 52B that protrudes at right angles from the end of the frame main body 52A on the vehicle body rear side toward the outside of the frame main body 52A. In addition, a soft resin portion 54 is provided in the flange portion 52B.

  The soft resin portion 54 is embedded in the flange portion 52B by two-color molding, and is exposed to the outside of the flange portion 52B on the front surface (surface on the vehicle body front side) and the back surface (surface on the vehicle body rear side) of the flange portion 52B. ing. A concave portion 54A is formed in the outer peripheral portion of the soft resin portion 54, and a part of the flange portion 52B enters inside the concave portion 54A. Thereby, the extraction (relative movement) of the soft resin portion 54 in the longitudinal direction of the vehicle body with respect to the flange portion 52B is restricted.

  In addition, a circular through hole 54 </ b> B that penetrates the soft resin portion 54 in the front-rear direction of the vehicle body is formed in the central portion of the soft resin portion 54. The through hole 54B corresponds to a bolt 56 as an attachment member. The bolt 56 has a cylindrical portion 56A formed in a cylindrical shape and a head portion 56B integrally provided at one end in the axial direction of the cylindrical portion 56A. The cylindrical portion 56A is inserted into the through hole 54B. In addition, the head 56B is attached to the soft resin portion 54 by contacting the front end portion of the soft resin portion 54 with respect to the vehicle body.

  A screw portion 56C is integrally provided at the other axial end of the cylindrical portion 56A, and the screw portion 56C passes through the through hole 26A of the hood outer 26. A nut 58 is screwed into the screw portion 56 </ b> C, whereby the bolt 56 is fastened to the hood outer 26, and the radiator grill 50 is attached to the front of the vehicle body of the automobile 12.

  A protruding portion 60 that contacts the hood outer 26 is provided on the rear end surface of the soft resin portion 54 in the vehicle body. The protrusion 60 protrudes rearward of the vehicle body from the outer peripheral frame portion 52, and a gap is formed between the outer peripheral frame portion 52 and the hood outer 26. Further, the nut 58 is provided with a flange portion 58A that comes into contact with the hole edge portion of the through hole 54B, and a cylindrical portion 58B disposed inside the through hole 26A, and the tip of the cylindrical portion 58B is a bolt. It is in contact with the other axial end of the 56 cylindrical portions 56A. For this reason, the excessive fastening force of the bolt 56 and the nut 58 does not act on the soft resin portion 54.

  A plating frame 62 formed in a frame shape similar to that of the outer peripheral frame portion 52 is provided outside the outer peripheral frame portion 52. The plating frame 26 is attached to the outer peripheral frame portion 52 by screws (not shown), and covers the vehicle body front side and the vehicle body upper side of the flange portion 52B. For this reason, the flange portion 52B, the soft resin portion 54, and the bolt 56 are not visible from the outside of the vehicle body.

Also in the radiator grill 50 having the above-described configuration, when a load acts between the outer peripheral frame portion 52 and the bolt 56 due to vibration of the vehicle body, the load can be absorbed by the soft resin portion 54. Therefore, it is possible to suppress stress concentration from occurring in the outer peripheral frame portion 52 starting from the bolt 56.
<Fourth Embodiment>
FIG. 8 is a sectional view showing a partial configuration of a radiator grill 70 as a vehicle resin part according to the fourth embodiment of the present invention. In FIG. 8, hatching of some members is omitted for convenience of explanation.

  The radiator grill 70 has basically the same configuration as the radiator grill 50 according to the third embodiment, except that the concave portion 54A of the soft resin portion 54 is omitted. A wave washer 72 is disposed between the head portion 56B of the bolt 56 and the soft resin portion 54, and the front grill 70 is urged toward the hood outer 26 by the wave washer 72.

The radiator grill 70 having the above configuration has basically the same functions and effects as those of the radiator grill 50 according to the third embodiment. In addition, in the radiator grill 50 according to the third embodiment, a part of the flange portion 52B that has entered the recess 54A is interposed between the head portion 56B of the bolt 56 and the hood outer 26, so that the bolt 56 The fastening force between the nut 56 and the nut 58 acts on the flange portion 52B. In this embodiment, the fastening force between the bolt 56 and the nut 58 does not act on the flange portion 52B. Further, since the wave washer 72 is provided between the head 56B of the bolt 56 and the soft resin portion 54, it is further possible that an excessive fastening force between the bolt 56 and the nut 58 acts on the soft resin portion 54. While being able to suppress well, the load which acts between the volt | bolt 56 and the soft resin part 54 can be absorbed by the elastic deformation of the wave washer 72.
<Fifth Embodiment>
FIG. 9 is a sectional view showing a partial configuration of a radiator grill 80 as a vehicle resin component according to the fifth embodiment of the present invention. In FIG. 9, hatching of some members is omitted for convenience of explanation.

  The radiator grill 80 has basically the same configuration as the radiator grill 10 according to the first embodiment, but the soft resin portion 22 according to the first embodiment is omitted. The radiator grille 80 has bolts 82 (attachment members) different from the bolts 24 according to the first embodiment.

  The bolt 82 includes an embedded portion 84 embedded in the outer peripheral frame portion 16 of the radiator grill body 14 by insert molding, a screw portion 86 provided integrally with the embedded portion 84, and the embedded portion 84 and the screw portion 86. And a flange portion 88 provided therebetween. The embedding portion 84 has a curved surface portion 84A having a convex curved surface facing the outer peripheral frame portion 16 side, and a long portion when viewed from the axial direction of the screw portion 86. Is formed.

  Further, the embedded portion 84 is exposed to the outside of the outer peripheral frame portion 16 at the back surface 16A of the outer peripheral frame portion 16, and a portion from the curved surface portion 84A to the rear surface 16A of the outer peripheral frame portion 16 is an inclined portion 84B. An angle formed by the outer peripheral surface of the inclined portion 84B and the back surface 16A of the outer peripheral frame portion 16 is an obtuse angle.

  Between the curved surface portion 84A and the inclined portion 84B, a constricted portion 84C is formed as a concave portion for reducing the external dimension of the embedded portion 84, and the embedded portion 84 is formed between the curved surface portion 84A and the inclined portion 84B. It is wrapped in between. A part of the outer peripheral frame portion 16 is inserted inside the constricted portion 84C so that the embedded portion 84 (bolt 82) is prevented from falling off from the outer peripheral frame portion 16. Further, the constricted portion 84 </ b> C is formed by a curved surface having a continuous outer peripheral surface in contact with the outer peripheral frame portion 16.

  The screw portion 86 of the bolt 82 is inserted into the through hole 26A of the hood outer 26, like the screw portion 24B of the bolt 24 according to the first embodiment, and the nut 28 is screwed into the screw portion 86. The bolt 82 is fastened to the hood outer 26, and the radiator grill 80 is attached to the front of the vehicle body.

  Unlike the first embodiment, the radiator grill 80 configured as described above cannot absorb the load acting between the outer peripheral frame portion 16 and the bolt 82 by the deformation of the soft resin portion. It is possible to suppress the concentration of stress at the contact portion between the embedded portion 84 and the embedded portion 84. Therefore, it is possible to suppress stress concentration from occurring in the outer peripheral frame portion 16 starting from the bolt 82.

  In the fifth embodiment, the outer peripheral portion of the embedded portion 84 may be coated with a soft resin material. In this case, the same operational effects as the first embodiment can be obtained.

In the fifth embodiment, the bolt 82 is an attachment member. However, the present invention is not limited to this, and the nut is an attachment member, that is, the screw portion 86 is omitted, and the embedded portion. 84 may have a screw hole.
<Sixth Embodiment>
FIG. 10 is a sectional view showing a partial configuration of a radiator grill 90 as a vehicle resin part according to a sixth embodiment of the present invention. FIG. 11 is a sectional view taken along line 11-11 of FIG. In FIG. 11, hatching of some members is omitted for convenience of explanation.

  The radiator grill 90 has basically the same configuration as the radiator grill 10 according to the first embodiment, but the mounting structure to the vehicle body is different between the vehicle width direction central portion and the vehicle width direction both sides. ing. That is, a soft resin portion 22 and a bolt 24 are provided at the center in the vehicle width direction of the upper portion 16A and the lower portion 16B of the outer peripheral frame portion 16 of the radiator grill body 14, and has the mounting structure shown in FIG. . Further, a case 92 and a bolt 94 (fastening member) are provided on both sides in the vehicle width direction of the upper portion 16A of the outer peripheral frame portion 16 and in the middle portion in the vertical direction of the left portion 16C and the right portion 16D of the outer peripheral frame portion 16. The mounting structure shown in FIG.

  As shown in FIGS. 11 and 12, the case 92 includes a case main body 96 that is formed in a box shape that opens on one side, and a lid portion 100 that closes one side opening 96A of the case main body 96 (both see FIG. 12). ). The case 92 is embedded in the outer peripheral frame portion 16 by insert molding, and the rear wall of the case main body 96 is exposed to the outside of the outer peripheral frame portion 16 on the back surface 16 </ b> A of the outer peripheral frame portion 16.

  Inside the case main body 96, a head portion 94A of the bolt 94 is accommodated, and a screw portion 94B of the bolt 94 includes a slit 96B formed in a wall on the rear side of the vehicle body of the case main body 96 and a through hole of the hood outer 26. 26B is penetrated. The slit 96 </ b> B of the case main body 96 is formed long along the vehicle width direction, and the bolt 94 can be moved relative to the case main body 96 in the vehicle width direction.

  The slit 96B of the case main body 96 is continuous with the one side opening 96A of the case main body 96, and when the bolt 94 is attached to the case main body 96, the bolt 94 is removed from the one side opening 96A of the case main body 96. The screw portion 94B can be inserted into the slit 96B. A rib 96C that engages with the head 94A of the bolt 94 is provided on the wall of the case body 96 on the vehicle body front side, so that the backlash of the bolt 94 with respect to the case body 96 in the longitudinal direction of the vehicle body is suppressed. ing.

  On the other hand, a nut 28 is screwed into the threaded portion 94B of the bolt 94 that has passed through the through hole 26B of the hood outer 26, whereby the bolt 94 is fastened to the front end of the vehicle body of the hood outer 26, and the radiator grill 90 is connected to the vehicle body. Attached to the front. The case 92 slightly protrudes from the rear surface 16A of the outer peripheral frame portion 16 toward the rear side of the vehicle body, and a small gap is formed between the outer peripheral frame portion 16 and the hood outer 26.

  In the radiator grill 90 configured as described above, the radiator grill main body 14 can be positioned (centered) on the vehicle body by fastening the bolt 24 provided at the center in the vehicle width direction of the radiator grill main body 14 to the hood outer 26. The load acting between the radiator grill body 14 and the bolts 24 can be absorbed by the soft resin portion 22.

  In addition, the bolt 94 fastened to the vehicle body is movable relative to the case 92 attached to the radiator grill body 14 at a position different from the bolt 24 and the soft resin portion 22 in the vehicle width direction. Accordingly, in the state where the radiator grill body 14 is centered on the vehicle body by the bolt 24, a position shift in the vehicle width direction occurs between the bolt 94 and the fastening portion of the bolt 94 to the vehicle body (that is, the through hole 26B of the hood outer 26). Even in this case, the positional deviation can be eliminated by moving the bolt 94 relative to the case 92, that is, the radiator grille body 14 in the vehicle width direction.

  In addition, in the said 6th Embodiment, although it was set as the structure by which the volt | bolt 94 as a fastening member was attached to the case 92, it is good not only as this but the structure by which the nut as a fastening member was attached to the case 92.

  In the first to sixth embodiments, the case where the present invention is applied to the radiator grill has been described. However, the present invention can be applied to all vehicle resin parts. For example, the present invention can be applied to a rear garnish attached to the rear part of a vehicle body, an interior resin part, and the like.

1 is a front view of an automobile equipped with a radiator grill according to a first embodiment of the present invention. It is a front view which shows the partial structure of the radiator grill shown by FIG. FIG. 3 is a sectional view taken along line 3-3 in FIG. 2. The structure of the soft resin part which is a structural member of the radiator grille shown by FIG. 1, and a mounting member are shown, (A) is a side view, (B) is a top view. It is an enlarged view which shows the partial structure of the soft resin part shown by FIG. It is sectional drawing which shows the partial structure of the radiator grille concerning the 2nd Embodiment of this invention. It is sectional drawing which shows the partial structure of the radiator grille concerning the 3rd Embodiment of this invention. It is sectional drawing which shows the partial structure of the radiator grille concerning the 4th Embodiment of this invention. It is sectional drawing which shows the partial structure of the radiator grille concerning the 5th Embodiment of this invention. It is a front view of the radiator grille concerning a 6th embodiment of the present invention. It is the 11-11 line sectional view of FIG. It is a reverse view which shows the partial structure of the radiator grill shown by FIG.

Explanation of symbols

10 Radiator grill (resin parts for vehicles)
12 Automobiles 14 Radiator grill body (resin parts body)
22 Soft resin part 22A Curved part 22B Inclined part 22C Constricted part (concave part)
24 bolts (mounting members)
24B Screw part 26 Hood outer (vehicle body)
40 Radiator grill (resin parts for vehicles)
42 Soft resin part 50 Radiator grill (resin parts for vehicles)
54 Soft resin part 56 Bolt (mounting member)
70 Radiator grill (resin parts for vehicles)
80 Radiator grill (Vehicle resin parts)
82 bolts (mounting members)
84 Embedded portion 84A Curved portion 84B Inclined portion 84C Constricted portion (concave portion)
86 Screw part (mounting part)
90 Radiator grill (resin parts for vehicles)
92 Case 94 Bolt (fastening member)

Claims (8)

Resin component body made of hard resin,
A mounting member that is embedded in the resin component main body by insert molding and attached to a vehicle body is attached, and an outer peripheral portion in contact with the resin component main body has a curved surface portion that is convex toward the resin component main body. A portion of the back surface of the main body that is exposed to the outside of the resin component main body and extends from the curved surface portion to the back surface of the resin component main body is an inclined portion, and is formed by the outer peripheral surface of the inclined portion and the back surface of the resin component main body. A recess having an obtuse angle and a shorter length and width than the curved surface portion and the inclined portion is formed between the curved surface portion and the inclined portion, and the resin component main body is formed in the recess. A soft resin part made of soft resin partially entering ,
Resin parts for vehicles.   The resin component for a vehicle according to claim 1, wherein the attachment member is embedded in the soft resin portion by insert molding. The mounting member has a threaded portion, the soft resin portion, the resin for a vehicle according to claim 1 or claim 2, characterized in Rukoto formed in an elongated when viewed from the axial direction of the threaded portion parts. Resin component body made of hard resin,
The embedding portion includes a convex curved surface portion on an outer peripheral portion, an embedding portion embedded in the resin component main body by insert molding, and a mounting portion provided integrally with the embedding portion and attached to a vehicle body. Is exposed to the outside of the resin component main body on the back surface of the resin component main body, and a portion from the curved surface portion to the back surface of the resin component main body in the embedded portion is an inclined portion, and an outer peripheral surface of the inclined portion And an angle formed by the back surface of the resin component main body is an obtuse angle, and a recess having a shorter length and width than the curved surface portion and the inclined portion is formed between the curved surface portion and the inclined portion. A mounting member into which a part of the resin component main body enters the recess,
The vehicle resin component having. 5. The resin component for a vehicle according to claim 4, wherein the attachment portion is a screw portion, and the embedded portion is formed long when viewed from the axial direction of the screw portion . The recess, the vehicle resin component according to any one of claims 1 to 5, characterized by being formed by a curved outer peripheral surface in contact with the resin component body is continuous. A case attached to the resin component main body at a position different from the attachment member, and a fastening member attached to the case so as to be movable relative to the case in a direction contacting and separating from the attachment member, and fastened to the vehicle body the vehicle resin component according to any one of claims 1 to 6, characterized in Rukoto. Radiator grill body made of hard resin,
An attachment member that is embedded in the radiator grill body by insert molding and attached to a vehicle body is attached, and an outer peripheral portion that is in contact with the radiator grill body has a curved surface portion that is convex toward the radiator grill body, and the radiator grill A portion extending from the curved surface portion to the back surface of the radiator grill body is an inclined portion that is exposed to the outside of the radiator grill body on the back surface of the main body, and is formed by the outer peripheral surface of the inclined portion and the back surface of the radiator grill body. A concave portion having an obtuse angle and a shorter length and width than the curved surface portion and the inclined portion is formed between the curved surface portion and the inclined portion, and the radiator grille main body is formed in the concave portion. A soft resin part made of soft resin partially entering,
With radiator grill.

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