JPH07304401A - Center pillar trim - Google Patents

Abstract

PURPOSE:To improve the outward appearance by simplifying the structure of the molding die of a lower member, and preventing the displacement between both members at a connection section in a center pillar trim connected and fixed with an upper member and the lower member. CONSTITUTION:A fitting hole 23 opened downward is provided at the step section 21 of an upper member 20, and a hook claw 32 to be hooked in the fitting hole 23 is integrally formed in the upward direction on the upper end edge 31 of a lower member 30. The width and length of the fitting hole 23 are set slightly wider and longer than the width and length of the hook claw 32 to prevent the displacement between both members 20, 30 to the utmost.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a center pillar trim mounted on a center pillar panel,
In particular, the present invention relates to a center pillar trim which is composed of two divided members, an upper member and a lower member, which secures a good design of the joint portion of both members and can be manufactured at low cost.

[0002]

2. Description of the Related Art Normally, a center pillar trim mainly made of an injection molded body of a synthetic resin is mounted as an interior part on the indoor side of a center pillar panel of a sedan type passenger car or the like.

As shown in FIG. 6, most of the center pillar trims 1 are composed of two divided members, an upper member 2 and a lower member 3.
As the joining structure of, the insertion flange 4 is continuously formed on the lower edge of the upper member 2 via the step portion 4a,
Mounting holes 5 are provided at two positions on the left and right sides of the insertion flange 4.
Has been established.

On the other hand, on the upper edge 3a of the lower member 3,
An inwardly projecting locking claw 6 is integrally formed so as to be engaged with the mounting hole 5, and the insertion flange 4 of the upper member 2 is inserted into the inner surface side of the lower member 3 to be locked. The claw 6 is engaged in the mounting hole 5.

[0005]

As described above, in the conventional joining structure of the upper member 2 and the lower member 3 which form the center pillar trim 1, the locking claws directed inward at the upper end edge 3a of the lower member 3 are provided. In the structure of the molding die for molding the lower member 3, the locking claw 6 has an undercut shape, and therefore, in addition to the core die 7 and the cavity die 8, as shown in FIG. Slide type 9
It has been pointed out that there is a problem in that the mold cost rises and the cost of the product increases.

Further, since the mounting hole 5 is formed in the side surface of the insertion flange 4 of the upper member 2 and the locking claw 6 of the lower member 3 is laterally engaged, the X direction shown in FIG. Although it is possible to prevent the positional displacement of both members 2 and 3 along the width direction, it is not possible to regulate the positional displacement of both members along the up-down direction and the traveling direction of the vehicle, and the alignment is properly performed. If not, mounting hole 5
Has been pointed out to the outside, and it has been pointed out that there is a drawback that the aesthetics of the joint is greatly reduced.

The present invention has been made in view of the above circumstances, and can be manufactured inexpensively without the need for a slide mold, and the mounting holes formed in the upper member are not conspicuous to the outside, so that the upper member, It is an object of the present invention to provide a center pillar trim that enables a highly accurate joint structure in which there is no displacement in the front, rear, left, right, or upper and lower directions of the lower member.

[0008]

In order to achieve the above object, the present invention comprises an upper member made of a resin molding and a lower member, which is inserted into the lower edge of the upper member via a step. In the center pillar trim, in which a flange is formed, the above-mentioned insertion flange is attached to the inner surface side of the lower member, and the stepped portion of the upper member and the upper end edge of the lower member are butt-joined, the left and right sides of the stepped portion of the upper member. There is a mounting hole that opens downward on the, and corresponding to the mounting hole,
It is characterized in that a locking claw facing upward is set on the upper edge of the lower member.

Further, it is characterized in that a slit is formed so that the locking claw bends when the locking claw is engaged with the mounting hole.

[0010]

As is apparent from the above structure, since the locking claw formed on the upper edge of the lower member is in the upward direction, the locking claw is below the die cutting direction when molding the lower member. It does not have a cut shape and does not require a slide type.

Further, since the engaging claws formed upward on the upper edge of the lower member are engaged with the downward mounting holes provided in the stepped portion of the upper member, the engaging claws should be temporarily engaged with the mounting holes. For example, it is possible to reliably prevent the positional displacement between the upper member and the lower member not only in the vertical direction but also in the front-rear direction and the left-right direction.

[0012]

Embodiments of the center pillar trim according to the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 is an external view showing a first embodiment of a center pillar trim according to the present invention, FIG. 2 is an explanatory view showing a joint structure between an upper member and a lower member in the center pillar trim, and FIG. 3 is shown in FIG. FIG. 4 is a cross-sectional view showing the structure of the lower member forming die, and FIGS. 4 and 5 show another embodiment of the center pillar trim according to the present invention, each of which is an explanatory view showing the shape of the upper edge portion of the lower member.

First, as shown in FIG. 1, a center pillar trim 10 according to the present invention is generally composed of an upper member 20 and a lower member 30 which are injection molded products of synthetic resin.

The joint between the two members 20, 30 is lower than the lower member 3 of the upper member 20.
Both members 20 and 30 are attached to a center pillar panel (not shown) via fixing means such as a clip (not shown) in a state in which both members are wrapped so that the upper end of 0 comes to the upper position.

FIG. 2 illustrates the structure of the joint between the upper member 20 and the lower member 30. The lower edge side of the upper member 20 is inserted into the inner surface side of the lower member 30 via the step portion 21. The flange 22 is integrally formed, and the step portion 21 faces downward so as to abut the upper edge 31 of the lower member 30, and the mounting holes 23 are provided on the left and right sides of the step portion 21, respectively. It has been opened.

On the other hand, on the upper edge 31 of the lower member 30, a locking claw 32 is formed so as to project upward at a position corresponding to the mounting hole 23, and the locking claw 32 is attached to the mounting hole 2.
An inclined portion 33 having a guide function and a retaining portion 34 are set on the locking claw 32 so that the locking claw 32 can be smoothly engaged with the inside of the housing 3 and cannot be accidentally disengaged.

In the present invention, the dimensional relationship between the mounting hole 23 and the locking claw 32 is determined by the length a of the base portion 32a of the locking claw 32, the length b of the mounting hole 23, and the retaining portion 3 of the locking claw 32.
When the length c including 4 is set, b ≧ a and b <c are set.

The width of the locking claw 32 is set to be slightly smaller than the width of the mounting hole 23.

Therefore, when joining the upper member 20 and the lower member 30, the insertion flange 22 of the upper member 20 is inserted into the inner surface of the lower member 30, and the mounting hole 2 provided in the step portion 21 of the upper member 20.
When the locking claw 32 formed upward is attached to the upper end edge 31 of the lower member 30 inside the lower member 30, the retaining portion 33 of the locking claw 32 is caught in the mounting hole 23, so that both members 20 in the vertical direction are , 30 can be prevented from being displaced, and when the locking claw 32 is engaged in the mounting hole 23, the length of the mounting hole 23 and the length of the base 32a of the locking claw 32 are substantially equal to each other. Direction, that is, both members 2 in the X direction in FIG.
Since the positions 0 and 30 can be prevented from being displaced, and the width of the mounting hole 23 and the width of the locking claw 32 are almost equal, the displacement of both members 20 and 30 in the traveling direction of the vehicle, that is, the Y direction in FIG. It can be prevented.

As described above, in the center pillar trim 10 according to the present invention, since the mounting hole 23 formed in the upper member 20 is provided downward on the step portion 21, it is not conspicuous to the outside and the lower member 30. Due to the engagement between the locking claw 32 and the mounting hole 23,
The lateral displacement can be prevented as much as possible, and a good appearance of the joint can always be obtained.

Next, the structure of the forming die for the lower member 30 will be described with reference to FIG. 3. The lower member 30 has a shape in which the upper engaging edge 31 is integrally formed with the upward engaging claw 32. Unlike the conventional case, since the undercut shape is not formed in the die cutting direction, molding can be performed by the core mold 40 and the cavity mold 50, and since a slide mold is not required, molding can be performed with inexpensive mold equipment. It will be possible and will contribute greatly to the reduction of production cost.

Next, FIG. 4 shows a modification of the center pillar trim 10 according to the present invention, which is an embodiment in which the shape of the locking claw 32 is changed, and the direction of the inclined portion 33 and the retaining portion 34 is changed to the lower member. It is set so as to face the inside of 30.

According to this embodiment, the locking claw 32 is attached to the mounting hole 2.
Since the flexibility of the locking claw 32 itself can be secured to be large when compared with that of the first embodiment when engaged in the locking claw 3,
There is an advantage that the insertion operation of 2 can be performed more smoothly.

Similarly, also in FIG. 5, the flexibility of the locking claw 32 is given to improve the workability of inserting the locking claw 32. According to this embodiment, the retaining portion 34 is provided. The slit 35 is provided in the
This is an embodiment in which the inclined portion 33 and the retaining portion 34 are concentrated to provide flexibility.

As described above, according to the center pillar trim 10 of the present invention, the upper member 20 and the lower member 30 have a two-divided structure.
If the mounting hole 23 that opens downwards is formed in the lower member 30 and the upper engaging edge 32 of the lower member 30 is provided with the upward engaging claw 32, even a fine change in the shape of the engaging claw 32 is allowed, The present invention is not limited to the above embodiment.

[0027]

As described above, the center pillar trim according to the present invention has the following special operational effects.

(1) A mounting hole that opens downward is formed in the step of the upper member, and the locking claw that engages with this mounting hole is formed upward at the upper edge of the lower member. In the state in which the lower member and the lower member are joined, the mounting hole is not conspicuous to the outside, so that it has an effect of being aesthetically preferable.

(2) A locking claw provided upward on the upper edge of the lower member is engaged with a mounting hole formed in the stepped portion of the upper member, and a retaining part for the locking claw is provided in the mounting hole. If hooked, the vertical displacement of the upper member and the lower member can be regulated, and if the width and length of the mounting hole and the width and length of the locking claw are adjusted,
Since the positional displacement of the upper member and both members in the front-rear direction and the left-right direction can be restricted, there is an effect that both members are not displaced at the joint portion of the upper member and the lower member, and a good joint state can always be maintained.

(3) Since the locking claws provided on the lower member are integrally formed so as to project in the upward direction, they do not have an undercut shape in the die-cutting direction, so that a conventional slide die is required. Without this, molding can be performed with a cheap molding die structure, and there is an effect that a large cost reduction is brought about by a reduction in mold cost.

[Brief description of drawings]

FIG. 1 is an external view showing a first embodiment of a center pillar trim according to the present invention.

FIG. 2 is an explanatory view showing a structure of a joint portion between an upper member and a lower member in the center pillar trim shown in FIG.

FIG. 3 is a cross-sectional view showing a configuration of a lower member molding die shown in FIG.

FIG. 4 shows a second embodiment of the center pillar trim according to the present invention and is an explanatory view showing the configuration of the upper end portion of the lower member.

FIG. 5 is an explanatory view showing the third embodiment of the center pillar trim according to the present invention and showing the structure of the upper end portion of the lower member.

FIG. 6 is an explanatory view showing a joint structure of an upper member and a lower member in a conventional center pillar trim.

FIG. 7 is a cross-sectional view showing a configuration of a molding die in a conventional lower member.

[Explanation of symbols]

 10 Center Pillar Trim 20 Upper Member 21 Step 22 Flange for Insertion 23 Mounting Hole 30 Lower Member 31 Upper Edge 32 Locking Claw 33 Sloping Part 34 Detachment Part 35 Slit 40 Core Type 50 Cavity Type

Claims (2)

[Claims] 1. An insertion flange (22) comprising an upper member (20) made of a resin molded body and a lower member (30), and a lower edge of the upper member (20) having a step (21) interposed therebetween. The insertion flange (22) is attached to the inner surface of the lower member (30), and the step (21) of the upper member (20) and the upper edge (31) of the lower member (30) are butted. In the joined center pillar trim, mounting holes (23) opening downward are formed on the left and right sides of the step (21) of the upper member (20) and correspond to the mounting holes (23). The upper end edge (31) of the lower member (30) and the locking claw (3
2) Center pillar trim characterized by being set. 2. The upper edge (31) of the lower member (30)
The center pillar trim according to claim 1, wherein a slit (35) for imparting flexibility is formed on the locking claw (32) formed integrally with the center pillar trim.