JP4615306B2 - Molded parts for vehicles - Google Patents

Description

  The present invention relates to a molded article for a vehicle such as a molding, and in particular, has a design surface that becomes an outer surface when attached to a vehicle body, and a fixing member formed on a back surface that forms a surface opposite to the design surface. A vehicle that can be attached to a vehicle body by inserting and arranging a head of a fixing member (bolt or the like) in the holding portion and assembling a tightening member (nut or the like) to a shaft portion planted on the head. Related to molded products.

Conventionally, as a molded article for a vehicle such as a molding, a substantially square box-shaped bolt holding portion is provided on the back surface to receive and accommodate a bolt head, and the bolt head is mounted in the bolt holding portion. Many are used that are attached to the vehicle body by fastening a nut to the shaft of the bolt.
The bolt generally has a rectangular head. Therefore, when the bolt head is inserted into the bolt holding part and the nut is fastened to the bolt shaft part, the peripheral surface of the bolt head abuts against the inner surface of the side wall part of the bolt holding part. The part is difficult to rotate in the bolt holding part.
Also known is a mounting structure using a bracket having a restricting portion capable of sandwiching a side wall of the bolt holding portion and an insertion hole through which the shaft portion of the bolt is inserted in order to prevent the bolt from spinning around in the bolt holding portion. (See Patent Document 1).
There is also known a mounting structure in which two corners of the head of the bolt are cut obliquely and the oblique side cut when the bolt is rotated for fastening comes into contact with the inner surface of the side wall (Patent Document). 2).
Japanese Utility Model Publication No. 6-071913 JP 2004-132432 A

However, molded articles for vehicles such as moldings (hereinafter sometimes simply referred to as moldings) often have a design surface for providing an aesthetic appearance. As this design surface, for example, a surface that has been brightened by metal plating or the like is used.
For example, in the case of a plating process, the molding is passed through a plating solution to form a design surface on the surface of the molding. At this time, the plating solution adheres to the back surface of the molding to form a plating layer. Since the thickness of the plating layer is adjusted with emphasis on the design of the front surface side, the accuracy of the plating thickness on the back surface is lowered, and the dimensional variation may be increased.
In order to cope with this variation in the plating thickness, the size of the bolt holding portion is slightly increased so that a gap is obtained between the bolt head and the head. However, at the time of screw tightening, the head of the bolt rotates in the bolt holding portion, and the corner portion of the bolt head widens the interval between the side walls of the bolt holding portion (this is sometimes referred to as “opening”). ) As a result, the molding may be deformed due to distortion from the inside. At this time, slight irregularities and deformations occur on the design surface of the molding surface, and the direction of reflected light changes, causing slight disturbance in the brightness of the design surface, which may impair the design, which is a problem. Yes.

  As described in Patent Document 1, in a mounting structure in which a bracket is attached to a shaft portion of a bolt and a bolt holding portion is sandwiched by a restriction portion of the bracket, the bolt is manufactured with an increase in manufacturing cost for manufacturing the bracket. It is difficult to cope with the variation of the plating thickness on the surface of the side wall of the holding part, and there is a possibility that the bracket cannot be attached to the bolt holding part when the plating thickness is increased. For this reason, it is difficult to apply to a molded article for a vehicle having a design surface such as plating, and the above problem is not solved.

  As described in Patent Document 2, in the case of the mounting structure in which the two corners of the bolt head are obliquely cut to form the oblique sides, the peripheral surface of the bolt head is on the inner surface of the side wall portion of the bolt holding portion. In contrast, when the head corner is not excised, the distortion applied to the side wall is reduced and the substantial distortion of the design surface is eliminated when the corner of the head is not excised compared to when the head corner is abutted. However, even in this structure, when the peripheral surface of the bolt head is in contact with the inner surface of the side wall of the bolt holding part, the distance between the side walls of the bolt holding part is increased. Since a force is applied, the design surface may be distorted when the bolt and nut are fastened to an unnecessarily strong mounting force or when the fastening force required for fastening the bolt and nut is relatively strong.

  This invention is made | formed in view of the said situation, and makes it a subject to provide the molded product for vehicles which is hard to influence the designability of a design surface when it attaches to a vehicle body.

In order to solve the above problems, the present invention employs the following means.
A molded product for a vehicle according to the present invention has a molded product body having a design surface that is an outer surface when attached to a vehicle body and a back surface that forms a surface opposite to the design surface, and a back surface of the molded product body. A formed fixing member holding portion, a fixing member having a head inserted and arranged in the fixing member holding portion and a shaft portion planted in the head, and a tightening assembled to the shaft portion of the fixing member The fixed member holding portion includes first and second side wall portions that protrude from the back surface of the molded product body and face each other, and the molded product body. A securing portion formed by connecting a top portion of the first sidewall portion and a top portion of the second sidewall portion apart from the back surface, and the fixing member between the retaining portion and the back surface of the molded product body. A storage space for storing the head of the head is secured, and the retaining portion is A slide hole through which the shaft portion of the fixing member is inserted is provided, and the shaft portion of the fixing member is inserted into the slide hole, and the head of the fixing member is inserted into the housing space. When housed, the rotation of the fixing member is restricted by contacting the peripheral surface of the head of the fixing member at a position between the inner surface of the first side wall and the inner surface of the second side wall. have a rotation restricting rib, the rotation restricting rib, together with the peripheral surface of the head portion of the fixing member extends in a direction the peripheral surface substantially perpendicular when in contact with, the extending direction length The thickness dimension is set larger than the thickness of the first and second side wall portions.
Further, the rotation restricting rib extends in a direction substantially parallel to the first and second side wall portions .
The rotation restricting rib may be suspended from the retaining portion while securing a gap between the rotation restricting rib and the back surface of the molded product body .

  According to the present invention, when the fixing member is attached, the rotation regulating rib comes into contact with the peripheral surface of the head of the fixing member, so that the peripheral surface of the head of the fixing member is in contact with the inner surfaces of both side walls of the fixing member holding portion. The rotation restricting rib receives the mounting force applied to the fixing member without coming into contact. Therefore, it is possible to prevent “open mouth” that widens the interval between the side wall portions, and extremely reduce the distortion applied to the design surface. As a result, disturbances such as glitter on the design surface due to distortion of the molded article for the vehicle are substantially eliminated, and an excellent aesthetic appearance is obtained.

The present invention will be described below with reference to the drawings based on the best mode.
Hereinafter, the present invention will be described in detail based on embodiments. Examples of the vehicle molded product to which the present invention can be applied include an exterior food molding and the like, an interior pillar garnish, and the like. Here, as an embodiment, an example of the food molding This will be described with reference to the drawings.

FIG. 1 is a schematic perspective view showing a state in which a hood molding, which is an example of a molded article for a vehicle according to the present invention, is attached to a vehicle body. FIG. 2A is a back view of the hood molding shown in FIG. FIG. 2B is a cross-sectional view taken along line IIb-IIb in FIG. FIG. 3A is a perspective view showing an example of a fixing member and a fastening member, and FIG. 3B is another perspective view showing another example of the fixing member in which a washer can be removed. is there.
In a vehicle body 10 shown in FIG. 1, a long hood molding 1 is attached to a front edge portion of a hood panel outer 12 that constitutes an outer surface of a hood 11.

  As shown in FIG. 2 (a), the hood molding 1 is a molded product such as plastic, and the molded product body 2 (hereinafter referred to as “the molded product body 2”) is molded so as to be curved along the front edge of the hood panel outer 12. And a fixing member holding portion 5 formed on the back surface 4 of the molding body 2. Moreover, as shown in FIG.2 (b), the design surface 3 which improved the designability by plating etc. is formed in the outer surface of the molding main body 2. As shown in FIG.

  2A, reference numeral 6 denotes a clip locking portion, which is formed on the left side (left side in FIG. 2A) near the center in the vehicle width direction in this embodiment. A clip (not shown) is locked to the clip locking portion 6, and this clip is engaged with the front edge portion of the hood panel outer 12 (see FIG. 1), so that the hood molding 1 is attached to the hood panel outer 12. Can be temporarily fixed.

As shown in FIG. 6B, the hood molding 1 has a hood panel outer 12 on the vehicle body 10 (see FIG. 1) with a shaft portion 32 of the fixing member 30 held by the fixing member holding portion 5 on the molding body 2 side. It is attached and fixed to the front end portion of the hood 11 by being inserted into the mounting hole 13 drilled in the front edge portion of the hood 11 and tightening the fastening member 14 to the shaft portion 32.
The molding body 2 is attached so that the design surface 3 is flush with the upper surface of the hood panel outer 12, and the front end of the hood 11 is formed to have a unity design.

As shown in FIG. 3A, the fixing member 30 in the present embodiment is a bolt, and has a rectangular head portion 31 and a shaft portion 32 planted on the head portion 31. As shown in FIG. 5, the head 31 of the fixing member 30 is rectangular in this example, but in the present invention, a fixing member having a square head can be employed.
The shaft portion 32 of the fixing member 30 includes a screw portion 32a having a male screw, a stepped collar portion 32b provided at the base portion of the shaft portion 32 in contact with the seating surface 31b of the head portion 31, a screw portion 32a and a collar. And a washer 33 formed integrally between the portions 32b.
The screw portion 32a is a right-hand screw here, and a nut that is the fastening member 14 is tightened to the screw portion 32a while rotating clockwise.
As shown in FIG. 3B, the shaft portion 32 of the fixing member 30 includes a screw portion 32 a having a male screw and a step provided at the base portion of the shaft portion 32 in contact with the seat surface 31 b of the head portion 31. It is also possible to use a member having a collar portion 32b and a removable washer 33 (not shown) attached to the screw portion 32a.

  As the fixing member holding part 5, there are 5L in which the insertion port 25 for inserting the fixing member 30 is opened on the right side and 5R in which the insertion port 25 is opened on the left side (FIG. 2 (a). )reference). Since these have the same configuration and become the same when rotated by 180 °, the left-side fixing member holding portion 5L will be described below with reference to FIGS.

FIG. 4 is a perspective view showing a first example of a fixing member holding portion of the hood molding. FIG. 5 is a back view showing a state in which the fixing member is attached to the first example of the fixing member holding portion. However, the washer 33 is not shown in FIG. 5 for easy understanding of the drawing. FIG. 6A is a cross-sectional view taken along the line VIa-VIa in FIG. FIG. 6B is a cross-sectional view taken along the line VIb-VIb in FIG.
As shown in FIG. 6B, an annular spacer 7 made of rubber or resin is provided between the washer 33 and the hood panel outer 12. By this spacer 7, the washer 33 and the hood panel outer 12 are separated from each other, and generation of rust due to contact of different metals is prevented. Further, when the hood 11 (see FIG. 1) is opened and closed in order to check the engine room of the vehicle 10, the spacer 7 serves as a cushioning material that cushions the vibration of the hood molding 1, and has the effect of suppressing rattling noise. is there.
As shown in FIGS. 4 and 6, the fixing member holding portion 5 is formed integrally with the molding body 2 on the back surface 4 opposite to the design surface 3 of the molding body 2.

As shown in FIG. 4, the fixing member holding portion 5 </ b> L protrudes from the back surface 4 of the molding body 2 and is provided opposite to each other, and the back surface of the molding body 2. 4 and a retaining portion 23 that is spaced from 4. The internal space of the fixing member holding portion 5L surrounded by the first side wall portion 21, the second side wall portion 22, the retaining portion 23, and the back surface 4 of the molding body 2 is a head portion 31 of the fixing member 30. Is a storage space 24 for storing the
As shown in FIGS. 6A and 6B, when the head portion 31 of the fixing member 30 is accommodated in the accommodating space 24 between the retaining portion 23 and the back surface 4 of the molding body 2 in the accommodating space 24. The gap is ensured between the top surface 31a of the head 31 and the back surface 4 of the molding body 2 so as to be secured.

As shown in FIG. 5, the first side wall portion 21 and the second side wall portion 22 are substantially parallel to form an accommodation space 24 between the side wall portions 21 and 22 during molding. A slight draft (about 3 °) is set to remove the mold. Here, the escape gradient is provided so that the mold for forming the accommodation space 24 can escape to the opening (right side in the drawing) on the insertion port 25 side.
The extending direction of the side wall portions 21 and 22 (the left-right direction in FIG. 5) is substantially parallel (the same direction) as the longitudinal direction of the molding body 2 (the left-right direction in FIG. 2A). Sometimes, the resin forming the fixing member holding portion is easy to flow, and sink marks can be prevented.

  As shown in FIGS. 6A and 6B, the base portions 21c and 22c of the side wall portions 21 and 22 are slightly thinner. Thus, even if the fixing member holding part 5 sinks and heat shrinks at the time of molding of the hood molding 1 by reducing the cross-sectional area connecting the side wall parts 21 and 22 and the back surface 4 of the molding body 2, the influence is exerted. It becomes difficult to transmit to the molding main body 2 side, and distortion of the design surface 3 can be suppressed.

  As shown in FIG. 2, the fixing member holding portion 5 </ b> L is opened to the center line 2 a side (right side in FIG. 5) of the molding body 2, and this is for storing the head portion 31 of the fixing member 30 in the accommodation space 24. The insertion opening 25 is. Further, a hole 26 (hereinafter, this hole 26 may be referred to as a “rear end hole”) is opened on the side opposite to the insertion port 25 (left side in FIG. 5). In this way, by reducing the connection region between the fixing member holding part 5 and the back surface 4 of the molding body 2, even if the fixing member holding part 5 sinks and heat shrinks during molding of the hood molding 1, the effect thereof is the molding. It becomes difficult to transmit to the main body 2 side, and distortion of the design surface 3 can be suppressed. Further, since the inner space 24 of the fixing member holding portion 5L is penetrated by the insertion opening 25 and the rear end hole 26 facing the longitudinal direction of the molding body 2, the plating solution is inserted when the hood molding 1 is plated. It is easy to pass through the mouth 25 and the rear end hole 26.

  As shown in FIGS. 4 and 6A, the retaining portion 23 connects the top portion 21 a of the first side wall portion 21 and the top portion 22 a of the second side wall portion 22. By connecting the side wall portions 21 and 22 in this manner, the head portion 31 of the fixing member 30 rotates when the fastening member 14 is tightened, and the side wall portions 21 and 22 are separated by the head portion 31. Even if a contact force is applied to the two side walls 21, 22 are prevented from being separated and deformed.

As shown in FIGS. 4 and 5, the retaining portion 23 is provided with a notched slide hole 27 through which the shaft portion 32 of the fixing member 30 is inserted from the insertion port 25 side. Projecting portions 27 b and 27 b and projecting portions 27 c and 27 c that can be elastically deformed are formed on the end edge 27 a of the slide hole 27 so as to face each other with the slide hole 27 interposed therebetween.
As shown in FIGS. 5 and 6B, when the shaft portion 32 (specifically, the collar portion 32 b) of the fixing member 30 is attached to the slide hole 27 of the fixing member holding portion 5, the head portion 31 of the fixing member 30 is molded. While being accommodated in the accommodating space 24 between the back surface 4 of the main body 2 and the retaining portion 23, the protrusion 27b and the protrusion 27c are elastically deformed to receive the shaft portion 32, and further, the protrusions 27b, 27b and the protrusion 27c. , 27c, the fixing member 30 can be clamped.
The slide hole 27 is designed such that its edge 27a has a slight gap with respect to the shaft portion 32 of the fixing member 30, and is fixed to the slide hole 27 even if the hood molding 1 is expanded or contracted. The shaft portion 32 of the member 30 can be reliably inserted.
Further, when the washer 33 is formed integrally with the fixing member 30, the head 31 can be easily held in the accommodating space 24, and the fixing member 30 can be prevented from rattling or coming off in the axial direction. Can do.

Further, as shown in FIGS. 4 to 6, in the fixing member holding portion 5 </ b> L, the shaft portion 32 of the fixing member 30 is inserted into the slide hole 27, and the head portion 31 of the fixing member 30 is accommodated in the accommodation space 24. Sometimes, the fixing member 30 is rotated by contacting the peripheral surface 31c of the head 31 of the fixing member 30 at a position between the inner surface 21b of the first side wall portion 21 and the inner surface 22b of the second side wall portion 22. It has a rotation restricting rib 28A for restricting.
As shown in FIG. 6A, the root portion 28a of the rotation restricting rib 28A is slightly thinner. In this way, by reducing the cross-sectional area connecting the rotation restricting rib 28A and the back surface 4 of the molding body 2, even if the fixing member holding part 5 sinks and is thermally contracted when the hood molding 1 is molded, the effect is affected by the molding. It becomes difficult to transmit to the main body 2 side, and distortion of the design surface 3 can be suppressed.

As shown in FIGS. 4 and 5, when the head 31 of the fixing member 30 rotates in the tightening direction of the tightening member 14 (clockwise in the embodiment), the peripheral surface 31 c of the head 31 of the fixing member 30 is It contacts the rotation restricting rib 28A. As a result, the peripheral surface 31 c of the head portion 31 of the fixing member 30 is prevented from coming into contact with the inner surfaces 21 b and 22 b of the side wall portions 21 and 22 of the fixing member holding portion 5. In addition, the direction in which the peripheral surface 31c of the head portion 31 of the fixing member 30 abuts against the rotation restricting rib 28A and presses the rotation restricting rib 28A (leftward in FIG. 5) is substantially parallel to the side wall portions 21 and 22. become.
As a result, “opening” that widens the interval between the side wall portions 21 and 22 is prevented, and the side wall portions 21 and 22 are less likely to be distorted by the mounting force that rotates the fixing member 30. The distortion applied to the design surface 3 of the molding body 2 can be made extremely small as compared with the case where the fixing member head abuts against both side wall portions. As a result, the deformation of the molding body 2 can be suppressed, and the appearance can be prevented from deteriorating due to the radiance of the design surface 3 and the disturbance of the light rays.

In the case of the rotation restricting rib 28A of the first example, as shown in FIG. 6A, a bridge is formed between the back surface 4 of the molding body 2 and the retaining portion 23 of the fixing member holding portion 5L.
Further, as shown in FIG. 5, the rotation restricting rib 28A extends in a direction substantially parallel to the extending direction of the first and second side wall portions 21 and 22 (the direction of the length L shown in FIG. 5). Since the wall-like ribs are present, the resin forming the rotation restricting ribs 28A can easily flow when molding is formed, and sink marks can be prevented.
The thickness T of the rotation restricting rib 28A is substantially the same as the thicknesses t ₁ and t ₂ of the side wall portions 21 and 22, and the length L of the rotation restricting rib 28A is larger than the thickness T of the rotation restricting rib 28A. Is set.

As described above, the rotation restricting rib 28A has a peripheral surface 31c (in FIG. 5, the shaft 31 in FIG. 5) that contacts the rotation restricting rib 28A when the head 31 of the fixing member 30 contacts the rotation restricting rib 28A. The surface of the fixing member 30 generated at the time of mounting is larger than the case where the fixing member head portion of the conventional example abuts against both side wall portions. Durability against rotational force (mounting force) is improved, distortion applied to the molding body 2 is further reduced, and disturbances such as radiance of the design surface 3 due to distortion of the molding body 2 are substantially eliminated, resulting in extremely excellent aesthetics. Is obtained.
In the present embodiment, the surface of the peripheral surface 31c of the head 31 of the fixing member 30 that is in contact with the rotation restricting rib 28A is a surface that is the long side of the rectangular head 31. However, the present invention is not particularly limited to this, and it is also possible to design so as to abut on the rotation restricting rib on the surface that becomes the short side of the rectangular head 31.

  In addition, when the screw part 32a of the fixing member 30 is a right-hand screw (the rotation direction at the time of attachment is clockwise), as described above, the fixing member holding part 5L on the left side of the molding body 2 (see FIG. 2) When the main body 2 is viewed from the back surface 4 side and the side wall portions 21 and 22 are arranged above and below, as shown in FIG. Although it has been arranged at the lower left corner of the member holding part 5L, the fixing member holding part 5R (see FIG. 2) on the right side of the molding body 2 has the insertion port 25 on the left side and the rotation restricting rib 28A on the fixing member holding part 5R. By arranging in the upper right corner, it is possible to obtain the same effect as the left fixing member holding portion 5L of the present embodiment.

Next, as an example of a modification of the molding of the present invention, a fixing member holding portion (second example) in which a gap is provided between the back surface of the molding body and the rotation regulating rib will be described.
FIG. 7 is a perspective view showing a second example of the fixing member holding portion according to the molding of the present invention. FIG. 8 is a back view showing a state in which the fixing member is attached to the fixing member holding portion of the second example. However, the washer 33 is not shown in FIG. FIG. 9A is a sectional view taken along line IXa-IXa in FIG. FIG. 9B is a cross-sectional view taken along the line IXb-IXb in FIG.
The hood molding of this modification has the same configuration as the hood molding 1 of the first embodiment shown in FIG. 2 except for the configuration of the rotation restricting ribs, and therefore, redundant description may be omitted here.

In this modified example, as shown in FIG. 7, the fixing member holding portion 5 </ b> L protrudes from the back surface 4 of the molding body 2, and is provided with first and second side wall portions 21, 22 provided opposite to each other, A retaining portion 23 that connects the top portion 21 a of the first side wall portion 21 and the top portion 22 a of the second side wall portion 22 apart from the back surface 4 of the main body 2 is provided. The internal space of the fixing member holding portion 5L surrounded by the first side wall portion 21, the second side wall portion 22, the retaining portion 23, and the back surface 4 of the molding body 2 is a head portion 31 of the fixing member 30. Is a storage space 24 for storing the
As shown in FIGS. 9A and 9B, when the head portion 31 of the fixing member 30 is accommodated in the accommodating space 24 between the retaining portion 23 and the back surface 4 of the molding body 2 in the accommodating space 24. The gap is secured between the top surface 31a of the head 31 and the back surface 4 of the molding body 2 so as to be secured.

As shown in FIG. 8, the first side wall portion 21 and the second side wall portion 22 are substantially parallel to form an accommodation space 24 between the side wall portions 21 and 22 during molding. A slight draft (about 3 °) is set to remove the mold. Here, the escape gradient is provided so that the mold for forming the accommodation space 24 is removed from the opening on the insertion port 25 side (right side in the figure).
Further, the retaining portion 23 is provided with a notched slide hole 27 through which the shaft portion 32 of the fixing member 30 is inserted from the insertion port 25 side. Projecting portions 27b and 27b and projecting portions 27c and 27c that can be elastically deformed project from the end edge 27a of the slide hole 27 so as to face each other with the slide hole 27 interposed therebetween. 27b and the projecting portions 27c, 27c, the shaft portion 32 of the fixing member 30 can be sandwiched.

As shown in FIGS. 7 to 9, the fixing member holding portion 5 </ b> L is formed when the shaft portion 32 of the fixing member 30 is inserted into the slide hole 27 and the head portion 31 of the fixing member 30 is accommodated in the accommodation space 24. The rotation of the fixing member 30 is restricted by contacting the peripheral surface 31c of the head 31 of the fixing member 30 at a position between the inner surface 21b of the first side wall part 21 and the inner surface 22b of the second side wall part 22. A rotation restricting rib 28B is provided. The rotation restricting rib 28B of the second example is formed at a position opposite to the insertion port 25 of the retaining portion 23 (position on the rear end hole 26 side).
Further, when the washer 33 is formed integrally with the fixing member 30, the head 31 can be easily held in the accommodating space 24, and the fixing member 30 can be prevented from rattling or coming off in the axial direction. And the head 31 and the rotation restricting rib 28B can be reliably brought into contact with each other.

As shown in FIGS. 7 and 8, when the head 31 of the fixing member 30 rotates in the tightening direction of the tightening member 14 (clockwise in the embodiment), the peripheral surface 31 c of the head 31 of the fixing member 30 is It contacts the rotation restricting rib 28B. As a result, the peripheral surface 31 c of the head portion 31 of the fixing member 30 is prevented from coming into contact with the inner surfaces 21 b and 22 b of the side wall portions 21 and 22 of the fixing member holding portion 5. Further, the direction (leftward in FIG. 8) in which the peripheral surface 31c of the head 31 of the fixing member 30 abuts against the rotation restricting rib 28B and presses the rotation restricting rib 28B is substantially parallel to the side wall portions 21 and 22. become.
As a result, “opening” that widens the interval between the side wall portions 21 and 22 is prevented, and the side wall portions 21 and 22 are less likely to be distorted by the mounting force that rotates the fixing member 30. The distortion applied to the design surface 3 of the molding body 2 can be made extremely small as compared with the case where the fixing member head abuts against both side wall portions. As a result, the deformation of the molding body 2 can be suppressed, and the appearance can be prevented from deteriorating due to the radiance of the design surface 3 and the disturbance of the light rays.

As shown in FIG. 9A, the rotation restricting rib 28 </ b> B of the second example secures a gap 26 a between the back surface 4 of the molding body 2 and prevents the retaining portion 23 in the hole 26 on the side opposite to the insertion port 25. A rectangular parallelepiped-shaped convex portion that is suspended from the back surface 4 side.
As shown in FIG. 8, the thickness T and the length L of the rotation restricting rib 28 </ _b > B are set to be larger than the thicknesses t ₁ and t _{2 of the} side wall portions 21 and 22. Here, the thickness T of the rotation restricting rib 28B is a dimension that is the same direction as the thicknesses t ₁ and t ₂ of the side wall portions 21 and 22, and the length L of the rotation restricting rib 28B is the length L of the both side wall portions 21. , 22 in the same direction as the extending direction (left-right direction in FIG. 8).
Since the rotation restricting rib 28B is provided at the inner corner where the second side wall 22 which is one of the side walls and the retaining portion 23 intersect, the rotation restricting rib 28B is formed when the food molding 1 is formed. The effect of forming the surface is not transmitted to the molding body 2 side, and the design surface 3 can be prevented from sinking.

Further, the rotation restricting rib 28B has a circumferential surface 31c (a shaft portion 32 in FIG. 8) that contacts the rotation restricting rib 28B of the head 31 when the head 31 of the fixing member 30 contacts the rotation restricting rib 28B. Since the length L in the direction substantially orthogonal to the surface located on the left side of the two side walls 21 and 22 is set to be larger than the thicknesses t ₁ and t ₂ , Compared to the case where both side walls are in contact with each other, the durability against the rotational force (mounting force) of the fixing member 30 generated during mounting is improved, and the distortion applied to the molding body 2 is further reduced. Disturbances such as the brightness of the surface 3 are substantially eliminated, and an extremely excellent aesthetic appearance is obtained.
In this embodiment, the peripheral surface 31 c on the side of the peripheral surface 31 c of the head 31 of the fixing member 30 that is in contact with the rotation restricting rib 28 </ b> B is a surface that is the long side of the rectangular head 31. However, the present invention is not particularly limited to this, and can be designed so as to abut on the rotation restricting rib on the surface which becomes the short side of the rectangular head portion 31.

  In addition, when the screw part 32a of the fixing member 30 is a right-hand screw (the rotation direction at the time of attachment is clockwise), as described above, the fixing member holding part 5L on the left side of the molding body 2 (see FIG. 2) When the main body 2 is viewed from the back surface 4 side and the side wall portions 21 and 22 are disposed above and below, as shown in FIG. 8, the insertion port 25 is disposed on the right side and the rotation regulating rib 28B is fixed on the left side. Although it has been arranged at the lower left corner of the member holding part 5L, the right side fixing member holding part 5R (see FIG. 2) of the molding body 2 has the insertion port 25 on the left side and the rotation regulating rib 28B of the fixing member holding part 5R. By arranging in the upper right corner, it is possible to obtain the same effect as the left fixing member holding portion 5L of the present embodiment.

Next, as another modification of the molding of the present invention, a fixing member holding portion (third example) in which a rotation restricting rib is provided on the insertion port side will be described.
FIG. 10 is a perspective view showing a third example of the fixing member holding portion according to the molding of the present invention. FIG. 11 is a back view showing a state in which the fixing member is attached to the fixing member holding portion of the third example. However, the washer 33 is not shown in FIG. 11 for easy understanding. FIG. 12A is a cross-sectional view taken along line XIIa-XIIa in FIG. FIG. 12B is a cross-sectional view taken along line XIIb-XIIb in FIG.
The hood molding of this modification has the same configuration as the hood molding 1 of the first embodiment shown in FIG. 2 except for the configuration of the rotation restricting ribs, and therefore, redundant description may be omitted here.

In the present modification, the fixing member holding portion 5L is provided with first and second side wall portions 21 and 22 that protrude from the back surface 4 of the molding body 2 and face each other, as shown in FIG. A retaining portion 23 that connects the top portion 21 a of the first side wall portion 21 and the top portion 22 a of the second side wall portion 22 apart from the back surface 4 of the molding body 2 is provided. The internal space of the fixing member holding portion 5L surrounded by the first side wall portion 21, the second side wall portion 22, the retaining portion 23, and the back surface 4 of the molding body 2 is a head portion 31 of the fixing member 30. It is the accommodation space 24 that accommodates.
As shown in FIGS. 12A and 12B, when the head portion 31 of the fixing member 30 is accommodated in the accommodating space 24 between the retaining portion 23 and the back surface 4 of the molding body 2 in the accommodating space 24. The gap is secured between the top surface 31a of the head 31 and the back surface 4 of the molding body 2 so as to be secured.

As shown in FIG. 11, the first side wall portion 21 and the second side wall portion 22 are substantially parallel to form an accommodation space 24 between the side wall portions 21 and 22 during molding. A slight draft (about 3 °) is set to remove the mold. However, in this modified example, the mold for forming the accommodation space 24 does not come out through the opening on the insertion port 25 side (right side in the figure), so it comes out so as to come out into the rear end hole 26 (left side in the figure). A gradient is provided.
Further, the retaining portion 23 is provided with a notched slide hole 27 through which the shaft portion 32 of the fixing member 30 is inserted from the insertion port 25 side. Projecting portions 27b and 27b and projecting portions 27c and 27c that can be elastically deformed project from the end edge 27a of the slide hole 27 so as to face each other with the slide hole 27 interposed therebetween. 27b and the projecting portions 27c, 27c, the shaft portion 32 of the fixing member 30 can be sandwiched.

As shown in FIGS. 10 to 11, the fixing member holding portion 5 </ b> L is formed when the shaft portion 32 of the fixing member 30 is inserted into the slide hole 27 and the head portion 31 of the fixing member 30 is accommodated in the accommodation space 24. The rotation of the fixing member 30 is restricted by contacting the peripheral surface 31c of the head 31 of the fixing member 30 at a position between the inner surface 21b of the first side wall part 21 and the inner surface 22b of the second side wall part 22. A rotation restricting rib 28C is provided. The rotation restricting rib 28 </ b> C of the third example is formed at a position near the insertion opening 25 of the retaining portion 23.
In this third example, the head 31 of the fixing member 30 has a rectangular shape. When the fixing member 30 is inserted into the slide hole 27, as shown by two-dot chain lines 30A and 30B in FIG. It becomes the direction which makes the short side of 31 the head. At the latest, when the fastening member 14 is attached to the fixing member 30 and tightened, the head 31 rotates about 90 °, and the long side of the rectangular head 31 contacts the rotation regulating rib 28C. Touch.

As shown in FIGS. 10 and 11, when the head 31 of the fixing member 30 rotates in the tightening direction of the tightening member 14 (clockwise in the embodiment), the peripheral surface 31 c of the head 31 of the fixing member 30 is It contacts the rotation restricting rib 28C. As a result, the peripheral surface 31 c of the head portion 31 of the fixing member 30 is prevented from coming into contact with the inner surfaces 21 b and 22 b of the side wall portions 21 and 22 of the fixing member holding portion 5. Further, the direction in which the peripheral surface 31c of the head portion 31 of the fixing member 30 abuts against the rotation restricting rib 28C and presses the rotation restricting rib 28C (leftward in FIG. 11) is substantially parallel to the side wall portions 21 and 22. become.
As a result, “opening” that widens the interval between the side wall portions 21 and 22 is prevented, and the side wall portions 21 and 22 are less likely to be distorted by the mounting force that rotates the fixing member 30. The distortion applied to the design surface 3 of the molding body 2 can be made extremely small as compared with the case where the fixing member head abuts against both side wall portions. As a result, the deformation of the molding body 2 can be suppressed, and the appearance can be prevented from deteriorating due to the radiance of the design surface 3 and the disturbance of the light rays.

Further, in the case of the rotation restricting rib 28C of the third example, as shown in FIG. 12A, a bridge is formed between the back surface 4 of the molding body 2 and the retaining portion 23 of the fixing member holding portion 5L, as shown in FIG. Thus, it is a wall-like rib extending in a direction substantially parallel to the extending direction of the first and second side wall portions 21 and 22 (the direction of the length L shown in FIG. 11).
As shown in FIGS. 12A and 12B, the root portion 28a of the rotation restricting rib 28C is slightly thinner. In this way, by reducing the cross-sectional area connecting the rotation restricting rib 28C and the back surface 4 of the molding body 2, even if the fixing member holding portion 5 sinks and heat shrinks when the hood molding 1 is molded, the effect of the molding is affected. It becomes difficult to transmit to the main body 2 side, and distortion of the design surface 3 can be suppressed.
In addition, since the extending direction of the rotation restricting rib 28C is substantially parallel (the same direction) as the extending direction of the side wall portions 21 and 22, the resin that forms the rotation restricting rib 28C is easy to flow when molding. Can prevent sink marks.
As shown in FIG. 11, the thickness T of the rotation restricting rib 28C is substantially the same as the thicknesses t ₁ and t ₂ of the side wall portions 21 and 22, and the length L of the rotation restricting rib 28C is the length of the rotation restricting rib 28C. It is set larger than the thickness T.

  In this way, the rotation restricting rib 28C has a circumferential surface 31c (in FIG. 11, the shaft 31 in FIG. 11) that is in contact with the rotation restricting rib 28C of the head 31 when the head 31 of the fixing member 30 is in contact with the rotation restricting rib 28C. Since the surface of the fixing member 30 extends in a direction substantially orthogonal to the surface of the portion 32 on the right side), the fixing member 30 generated at the time of mounting is compared to the case where the fixing member head of the conventional example abuts against both side wall portions. The durability against the rotational force (mounting force) of the molding body 2 is improved, the distortion applied to the molding body 2 is further reduced, and the turbulence of the design surface 3 due to the distortion of the molding body 2 is substantially eliminated, resulting in an extremely excellent aesthetic appearance. Is obtained.

  In addition, when the screw part 32a of the fixing member 30 is a right-hand screw (the rotation direction at the time of attachment is clockwise), as described above, the fixing member holding part 5L on the left side of the molding body 2 (see FIG. 2) When the main body 2 is viewed from the back surface 4 side and the side wall portions 21 and 22 are disposed above and below, as shown in FIG. 11, the insertion port 25 is disposed on the right side and the rotation restricting rib 28C is fixed on the left side. Although it has been arranged at the upper right corner of the member holding part 5L, the fixing member holding part 5R (see FIG. 2) on the right side of the molding body 2 has the insertion port 25 on the left side and the rotation restricting rib 28C of the fixing member holding part 5R. By arranging in the lower left corner, it is possible to obtain the same operational effects as the left fixing member holding portion 5L of the present embodiment.

As mentioned above, although this invention has been demonstrated based on suitable embodiment, this invention is not limited to the above-mentioned example, Various modifications are possible in the range which does not deviate from the summary of this invention.
For example, the screw portion 32a of the fixing member 30 is a right-hand thread in the above description, but may be a left-hand thread as necessary. In this case, the tightening member 14 such as a nut is tightened while rotating counterclockwise with respect to the threaded portion 32a. Therefore, the position of the rotation restricting rib is also adjusted to the rotational direction of the fixing member 30 at the time of attachment. To change. Specifically, assuming that both side wall portions are arranged above and below when viewed from the back side of the molding body, the screw portion 32a of the fixing member 30 is a right-hand thread as shown in FIGS. In this case, the rotation restricting rib is arranged at the upper right or lower left corner of the fixing member holding portion. On the contrary, when the screw portion 32a of the fixing member 30 is a left screw, the rotation restricting rib is held by the fixing member holding portion. It will be placed in the lower right or upper left corner of the part. Needless to say, the above-described effects can be obtained even in this case.

  As long as the fixing member holding part 5 and the clip locking part 6 are fixed to the molding body 2 with sufficient strength to withstand the fastening of the fixing member 30 and the fastening member 14, the molding body There is no need to mold the two integrally. It can also be molded separately from the molding body 2 and can be fixed and integrated with the molding body 2 by adhesion or the like.

  INDUSTRIAL APPLICABILITY The present invention can be used as an attachment structure for attaching various moldings to a vehicle body such as an exterior food molding or an interior pillar garnish.

It is a schematic perspective view which shows the state which attached the food molding which is an example of the molded article for vehicles of this invention to the vehicle body of the vehicle. (A) It is a reverse view of the food molding shown in FIG. (B) It is sectional drawing which follows the IIb-IIb line | wire of Fig.2 (a). (A) It is a perspective view which shows an example of a fixing member and a clamping member. (B) It is a perspective view which shows another example of a fixing member, Comprising: What a washer is removable. It is a perspective view which shows the 1st example of a fixing member holding | maintenance part. It is a back view which shows the state which attached the fixing member to the fixing member holding part of the 1st example. (A) It is sectional drawing which follows the VIa-VIa line | wire of FIG. (B) It is sectional drawing which follows the VIb-VIb line | wire of FIG. It is a perspective view which shows the 2nd example of a fixing member holding | maintenance part. It is a back view which shows the state which attached the fixing member to the fixing member holding part of the 2nd example. (A) It is sectional drawing which follows the IXa-IXa line | wire of FIG. (B) It is sectional drawing which follows the IXb-IXb line | wire of FIG. It is a perspective view which shows the 3rd example of a fixing member holding | maintenance part. It is a back view which shows the state which attached the fixing member to the fixing member holding part of the 3rd example. (A) It is sectional drawing which follows the XIIa-XIIa line | wire of FIG. (B) It is sectional drawing which follows the XIIb-XIIb line | wire of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Molded product for vehicles (food molding), 2 ... Molded product main body (molding main body), 3 ... Design surface, 4 ... Back surface, 5L, 5R ... Fixing member holding part, 10 ... Car body, 14 ... Fastening member (Nut), 21 ... first side wall, 21a ... top of the first side wall, 21b ... inner surface of the first side wall, 22 ... second side wall, 22a ... top of the second side wall, 22b ... inner surface of the second side wall part, 23 ... retaining part, 24 ... accommodating space, 26a ... gap, 27 ... slide hole, 28A, 28B, 28C ... rotation regulating rib, 30 ... fixing member (bolt), 31 ... head Part, 31c ... peripheral surface of the head, 32 ... shaft part.

Claims (3)

A molded product body having a design surface which is an outer surface when attached to the vehicle body and a back surface forming a surface opposite to the design surface; a fixing member holding portion formed on the back surface of the molded product body; A molded article for a vehicle comprising: a fixing member having a head inserted and arranged in the fixing member holding portion; a shaft portion planted in the head; and a tightening member assembled to the shaft portion of the fixing member. Because
The fixing member holding portion protrudes from the back surface of the molded product body and faces the first and second side walls, and spaced apart from the back surface of the molded product body, and the top of the first side wall portion and A retaining portion formed by connecting the tops of the second side wall portions,
An accommodation space for accommodating the head of the fixing member is secured between the retaining portion and the back surface of the molded product body, and a slide hole through which the shaft portion of the fixing member is inserted into the retaining portion. Is provided,
The fixing member holding portion is configured such that when the shaft portion of the fixing member is inserted into the slide hole and the head of the fixing member is received in the receiving space, the inner surface of the first side wall portion and the second side the peripheral surface of the head portion of the fixing member at a location between the inner surface of the side wall portion in contact have a rotation restricting rib which restricts the rotation of the fixing member,
The rotation restricting rib extends in a direction substantially orthogonal to the peripheral surface when the peripheral surface of the head of the fixing member comes into contact, and the length dimension in the extending direction is the first and A molded article for a vehicle characterized by being set to be larger than the thickness of the second side wall .   The molded article for a vehicle according to claim 1, wherein the rotation restricting rib extends in a direction substantially parallel to the first and second side wall portions. The rotation restricting rib, the while maintaining a gap between the back surface of the molded article body, the vehicle molded article according to claim 1 or 2, characterized by being suspended from the retaining portion.

Images