JP7135713B2 - gripping member - Google Patents

Description

The technology disclosed in this specification relates to gripping members.

2. Description of the Related Art Conventionally, as a gripping member, one described in Patent Document 1 is known. Patent Literature 1 discloses a door grip as a gripping member, and the door grip includes a base material (door grip body) and a skin covering the base material. Moreover, when the skin is a resin member, a method is known in which the skin is molded integrally with the base material by two-color molding.

JP 2007-326525 A

When molding a resin member integrally with a base material by two-color molding, a molding space provided between the surface of the base material and the molding surface of the mold is filled with a liquid resin, and the filled liquid resin It becomes a resin member by solidifying. At this time, if the liquid resin enters between the end surface of the base material and the mold, part of the resin member adheres to the end surface of the base material. As a result, there is concern that the dimensional accuracy of the end face of the base material will be lowered, and that this will interfere with the assembly of the base material to other members.

SUMMARY OF THE INVENTION The present invention has been completed based on the above circumstances, and an object of the present invention is to prevent a situation in which a resin member adheres to the end face of a base material.

As means for solving the above problems, the gripping member disclosed in the present specification is a gripping member provided in a vehicle and provided with a gripping portion that can be gripped by an occupant. and a resin member disposed so as to cover the surface of the base material main body and constituting the surface of the grip portion, wherein the peripheral end portion of the surface of the base main body has , characterized in that a projecting portion projecting toward the resin member is provided.

When molding a resin member by injection molding (two-color molding), a liquid resin is filled into a molding space defined by a base body and a molding die. After that, the liquid resin in the molding space solidifies to form a resin member. In the process of filling the molding space with the liquid resin (for example, molten resin) that constitutes the resin member, the liquid resin flows along the surface of the base body. According to the above configuration, the protruding portion is provided on the peripheral end portion of the surface of the substrate body portion. With such a configuration, the liquid resin flowing along the surface of the base material body part flows over the protrusions, and flows from the peripheral edge side of the surface of the base material body part to the end face of the base material body part. It is possible to weaken the momentum of the liquid resin flowing toward it. Therefore, it is possible to prevent the liquid resin from entering between the end face of the base material main body and the molding die, and it is possible to prevent the resin member from being molded in a state where the end face of the base material main body is adhered. .

In addition, the peripheral end portion of the surface of the base body portion and the portion of the surface of the base body body portion inside the peripheral end portion are arranged so that the peripheral end portion is closer to the resin member than the inner portion. It is possible to form a stepped shape located on the side. In the case of molding a resin member by injection molding, when the liquid resin flowing along the surface of the base body portion moves from the inner portion of the surface toward the peripheral edge portion of the surface, the liquid resin climbs over the step. will flow. Therefore, the force of the liquid resin flowing from the peripheral edge of the surface of the substrate main body toward the end surface of the substrate main body can be weakened, and the liquid resin can flow between the end surface of the substrate main body and the molding die. can prevent the intrusion of

ADVANTAGE OF THE INVENTION According to this invention, the situation that a resin member adheres to a base-material end surface can be suppressed.

1 is a front view of a door trim having a door grip according to one embodiment of the present invention; FIG. FIG. 2 is a view of the door trim in FIG. 1 with an interior component 30 removed; Perspective view of the grip base viewed from the interior of the vehicle Front view of the grip base as seen from the interior of the vehicle A view of the grip base as seen from the outside of the vehicle Cross-sectional view showing the door grip (corresponding to the view cut along the VI-VI line in FIG. 4) Cross-sectional view showing the door grip (corresponding to the view cut along line VII-VII in FIG. 4) FIG. 8 is an enlarged view showing the vicinity of the left side edge of the grip base in FIG. 7 ; Cross-sectional view showing the state in which the base material is arranged in the mold Cross-sectional view showing a state in which liquid resin is injected into the molding space Cross-sectional view showing a state in which the molding space is filled with liquid resin Cross-sectional view showing the vicinity of the side edge of the grip base of the comparative example Sectional view showing a state in which a part of the skin material is attached to the end face of the base material in the grip base of the comparative example.

One embodiment of the present invention will be described with reference to FIGS. 1 to 13. FIG. In this embodiment, a door grip 40 included in a vehicle door trim 20 is exemplified as a grip member provided in a vehicle (vehicle). The door trim 20 constitutes a vehicle door together with a door panel (the inner panel 11 of the door panel is shown in FIG. 6), and as shown in FIG. The trim body portion 21 includes an upper board 22, a lower board 23, and an ornament 24. - 特許庁The ornament 24 is arranged between the upper board 22 and the lower board 23. - 特許庁The door trim 20 also includes an inside handle 25, an armrest 26, a switch base 27, and the like. Further, the door trim 20 includes a plate-like interior component 30 that is substantially L-shaped when viewed from the front. The interior component 30 includes an extension portion 31 extending along the vehicle front-rear direction, and a grip cover portion 39 extending upward from the vehicle front end of the extension portion 31 . The grip cover portion 39 constitutes part of the door grip 40 .

The door grip 40 has a longitudinal shape and extends in a downwardly inclined manner from the front of the vehicle toward the rear of the vehicle. The door grip 40 is arranged in front of the inside handle 25 and the switch base 27 of the vehicle, and extends over the ornament 24 and the lower board 23 . The door grip 40 is attached to the trim main body 21 and the inner panel 11 at both upper and lower ends thereof. The door grip 40 is a hollow member that includes a grip base 50 (illustrated by broken lines in FIG. 1) and a grip cover portion 39 that covers the grip base 50 from the inside of the vehicle compartment.

Further, the extension portion 31 of the interior component 30 is configured to cover the lower board 23 from the inside of the vehicle interior. A plurality of mounting holes 23B for mounting 31 are formed therethrough. Further, as shown in FIG. 2, a substantially L-shaped bracket 34 is provided so as to straddle both the vehicle rear end portion of the grip base 50 and the upper end portion of the facing portion 23A. The vehicle rear end portion of the grip base 50 and the vehicle rear end portion of the grip cover portion 39 are coupled via the bracket 34 .

The grip base 50 mainly constitutes the vehicle exterior side portion of the door grip 40 . As shown in FIG. 4, the grip base 50 has a longitudinal shape that slopes down toward the rear of the vehicle. The grip base 50 includes a base material 51 and a skin material 71 (resin member), as shown in FIG. The base material 51 is made of synthetic resin such as polypropylene, for example. The base material 51 includes a plate-like base material main body 52, mounting bosses 53 (see FIG. 3), and clip seats 54 (see FIG. 5). As shown in FIG. 7, the base material main body 52 has a curved plate shape and is open to the inside of the passenger compartment.

3 and 4, the mounting boss 53 is integrally formed on the inner surface of the base material main body 52, and is fastened to the bracket 34 as shown in FIG. A mounting hole 34D is formed through the bracket 34, and a locking claw 39D of the grip cover portion 39 is mounted in the mounting hole 34D. The clip seat 54 is formed integrally with a surface 52A (the surface of the base material main body portion) of the base material main body portion 52 on the exterior side of the passenger compartment, and has a shape that protrudes to the outside of the passenger compartment. The clip seat 54 is attached to the inner panel 11 (door panel) via a clip 54A.

In addition, as shown in FIG. 5 , mounting bosses 57 are formed at locations adjacent to the respective clip seats 54 on the surface 52</b>A of the base material main body 52 on the exterior side. The upper mounting boss 57 is fastened to the ornament 24, for example, and the lower mounting boss 57 is fastened to the lower board 23, for example. That is, the grip base 50 is attached to the trim main body 21 and the inner panel 11 at both upper and lower ends thereof.

The skin material 71 is made of a soft material (for example, an olefinic thermoplastic elastomer) that is more flexible than the base material 51 . As shown in FIG. 6, the skin material 71 is arranged so as to cover the surface 52A of the base material main body 52 on the exterior side of the passenger compartment. A central portion of the door grip 40 in the longitudinal direction is a grip portion 41 that can be gripped by the passenger. The skin material 71 constitutes a surface 41A of the grip portion 41 on the outside of the passenger compartment (surface of the grip portion). As shown in FIG. 6, a space S1 into which the occupant can insert his or her fingers is provided between the surface 41A of the grip portion 41 on the outside of the passenger compartment and the surface of the trim main body 21 on the inside of the passenger compartment. there is Further, as shown in FIG. 5, a plurality of grooves 42 extending in a direction inclined with respect to the extension direction of the door grip 40 are formed in the surface 41A on the vehicle interior side.

In the base body portion 52, each of the side end portions 55, 55 on both sides in the vehicle front-rear direction (horizontal direction in FIG. 7) is located inside the side end portion 55 in the base body portion 52, as shown in FIG. It protrudes toward the skin material 71 side compared to the portion 56 of . For this reason, of the peripheral edges of the surface 52A of the base material main body 52 on the exterior side of the passenger compartment, the peripheral edge near the side edge is the peripheral edge 52B (the peripheral edge on the surface of the base material main body). When the inner portion 52D is the inner portion of the outer peripheral end portion 52B of the surface 52A of the main body portion 52, the outer peripheral end portion 52B and the inner inner portion 52D are arranged such that the outer peripheral end portion 52B is closer to the inner portion 52D than the outer inner portion 52D. also has a stepped shape located on the skin material 71 side.

A projection 58 (see FIG. 8) projecting toward the surface material 71 is provided on the peripheral end portion 52B of the surface 52A of the base material body portion 52 on the exterior side of the passenger compartment. As shown in FIG. 5, the skin material 71 is provided at a location corresponding to the grip portion 41, and the protrusion 58 is disposed at a location overlapping the skin material 71 at the peripheral end portion 52B. That is, the projecting portion 58 extends along the peripheral end portion 52B (and thus the side end portion of the base body portion 52). In addition, the protrusions 58 are provided at the respective side end portions of the substrate main body portion 52 . As shown in FIG. 8, the projecting portion 58 has a first surface 58A parallel to the end surface 52E of the substrate main body 52 and a second surface 58B intersecting the first surface 58A. .

The skin material 71 has a shape that follows the surface 52</b>A of the base material main body 52 on the exterior side. That is, the skin material 71 has a stepped portion 72 following the stepped portion 52F (the stepped portion including the peripheral end portion 52B and the inner portion 52D). Further, as shown in FIG. 7 , one side end portion 73 of the skin material 71 is adjacent to one side end portion 39A of the grip cover portion 39 . The other side end portion 74 of the skin material 71 is adjacent to the one side end portion 34A of the bracket 34 .

As shown in FIG. 7, near the boundary between the side end portion 73 of the skin material 71 and the side end portion 39A of the grip cover portion 39, the surface 39B of the grip cover portion 39 faces the surface 73A of the skin material 71. , and arranged on the center side of the grip base 50 . That is, the surface 39B and the surface 73A are steps. In the vicinity of the boundary between the side end portion 74 of the skin material 71 and the side end portion 34A of the bracket 34, the surface 34B of the bracket 34 is arranged on the center side of the grip base 50 with respect to the surface 74A of the skin material 71. ing. That is, the surface 34B and the surface 74A are steps. Further, as shown in FIG. 8, the surface 73A of the skin material 71 has a flat surface at a portion overlapping the protrusion 58 (near the side end 73), and has a shape that does not follow the shape of the protrusion 58. It has become.

Next, a method for manufacturing the grip base 50 will be described. The manufacturing method of the grip base 50 includes a substrate molding step of molding the substrate 51 by injection molding, and a skin material molding step of two-color molding the skin material 71 on the substrate 51 . In the skin material molding process, as shown in FIG. 9, the substrate 51 is placed on the molding surface 81A of one mold 81 of a pair of molds 81 and 82 having molding surfaces following the shape of the grip base 50. place. In this state, a molding space S2 for molding the skin material 71 is formed between the surface 52A of the base material main body 52 on the exterior side and the molding surface 82A of the other mold 82. As shown in FIG.

Next, as shown in FIG. 10, molten resin 12 (liquid resin) is injected into molding space S2. By injecting the molten resin 12 into the molding space S2, the molten resin 12 flows along the surface 52A of the base material main body 52 on the outside of the passenger compartment, and the stepped portion 52F (from the peripheral end portion 52B and the inner portion 52D) stepped portion) and head toward the peripheral end portion 52B. Then, as shown in FIG. 11, the molding space S2 is filled with the molten resin 12, and the filled molten resin 12 is cooled and solidified to form the skin material 71. As shown in FIG. Thereby, the grip base 50 is completed by integrally forming the skin material 71 with the base material 51 .

Next, the effects of this embodiment will be described. When molding the skin material 71 by injection molding (two-color molding), the molding space S2 formed by the base body portion 52 and the molding die 82 is filled with a liquid resin. Thereafter, the liquid resin in the molding space S2 is solidified to form the skin material 71 . In the process of filling the molding space S<b>2 with the liquid resin forming the skin material 71 , the liquid resin flows along the surface 52</b>A (surface) of the base material main body 52 on the interior side of the passenger compartment. According to the above configuration, the protruding portion 58 is provided on the peripheral end portion 52B of the surface of the base body portion 52 on the exterior side.

With such a configuration, the liquid resin that flows along the surface 52A of the base material main body 52 on the interior side of the passenger compartment flows over the projections 58, and the surface of the base material main body 52 on the outer side of the passenger compartment. The momentum of the liquid resin flowing from the peripheral end portion 52B side of 52A toward the end face 52E of the base body portion 52 can be weakened.

If the substrate body portion 52 is not provided with the projection portion 58, as shown in FIG. 12 may enter between the end surface 52E of the base material main body 52 and the molding surface 81A of the molding die 81. When the molten resin 12 that has entered between the end surface 52E and the molding surface 81A solidifies, the part 172 of the skin material 71 is molded while adhering to the end surface 52E of the base material main body 52 . If the part 172 of the skin material 71 adheres to the end face 52E of the base material main body part 52, there is a concern that this part 172 may interfere with the end face 39E (see FIG. 8) of the grip cover part 39 or the end face of the bracket 34. be. That is, when the part 172 of the skin material 71 adheres to the end surface 52E, the dimensional accuracy of the end of the grip cover 50 is lowered.

On the other hand, in the present embodiment, by providing the projecting portion 58, it is possible to suppress the liquid resin from entering between the end surface 52E of the substrate main body portion 52 and the molding die 82. It is possible to prevent a situation in which the skin material 71 is partially adhered to the end surface 52E of the body portion 52 during molding. Further, when the molten resin 12 enters between the end surface 52E of the base material main body 52 and the molding surface 81A of the molding die 81, the substrate 51 slightly floats from the molding die 81 as shown in FIG. As a result, the molding accuracy of the skin material 71 may be lowered. Therefore, by providing the projections 58 to suppress the intrusion of the molten resin 12, the molding accuracy of the skin material 71 can be further improved.

Further, as shown in FIGS. 10 and 11, when the skin material 71 is molded, pressure is applied to the first surfaces 58A of the projections 58 by the molten resin 12, so that the end surface 52E of the base material main body 52 is formed by the mold. 81 side is pressed. Therefore, a gap is less likely to occur between the end surface 52E and the molding surface 81A, and the liquid resin can be prevented from adhering to the end surface 52E.

In addition, the peripheral end portion 52B of the surface 52A of the base material main body portion 52 on the exterior side of the passenger compartment and the portion 52D of the surface 52A of the surface of the base material main body portion 52 on the exterior side of the vehicle interior of the peripheral end portion 52B are formed such that the peripheral end portion 52B It has a stepped shape positioned closer to the skin material 71 than the inner portion 52D. When the skin material 71 is molded by injection molding, the liquid resin flowing along the exterior surface 52A of the base material main body 52 flows from the inner portion 52D of the exterior surface 52A to the exterior surface 52A. When going toward the peripheral end portion 52B, the liquid resin flows over the step. Therefore, the momentum of the liquid resin flowing from the peripheral end portion 52B of the surface 52A of the substrate main body portion 52 on the vehicle interior side toward the end surface 52E of the substrate main body portion 52 can be weakened. Intrusion of the liquid resin between the end surface 52E and the mold 82 can be suppressed.

<Other embodiments>
The present invention is not limited to the embodiments explained by the above description and drawings, and the following embodiments are also included in the technical scope of the present invention.
(1) In the above embodiment, a door grip was exemplified as a gripping member, but the gripping member is not limited to this. The gripping member may be any member that can be gripped by the occupant, such as an assist grip.
(2) In the above embodiment, the skin material made of elastomer was exemplified as the resin member, but the material of the resin member can be changed as appropriate. However, since a highly fluid material such as an elastomer is likely to enter between the end face 52E of the substrate main body portion 52 of the substrate and the molding die during injection molding, it is more preferable to provide the protrusion 58. is.

40 door grip (gripping member) 41 gripping portion 41A exterior side surface of gripping portion 41 (surface of gripping portion) 51 substrate 52 substrate body 52A substrate body , 52B ... the peripheral edge of the surface of the base material main body 52 on the outside of the passenger compartment (the peripheral edge of the surface of the base material main body), 52D ... the base material body A portion inside the side end portion of the surface of the portion 52 on the outside of the vehicle compartment, 58... Protrusion, 71... Skin material (resin member)

Claims (1)

A gripping member provided in a vehicle and having a gripping portion that can be gripped by an occupant,
a substrate comprising a plate-shaped substrate main body;
a resin member disposed so as to cover the surface of the substrate main body and constituting the surface of the gripping portion;
A protrusion projecting toward the resin member is provided at a peripheral end portion of the surface of the base material main body ,
The peripheral end portion of the surface of the base body portion and the portion of the surface of the base body portion located inside the peripheral end portion are closer to the resin member than the inner portion. a stepped gripping member located;

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