JP2004291704A - Door molding for automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To realize both of the sure fitting of a mold body to a flange part, and the improving of an attaching/detaching workability. <P>SOLUTION: A hook part 31 which bends into an approximate L shape from the lower end of a glass side side-wall 25 of the mold body 24 to the opposite side from the glass is provided. By engaging the hook part 31 with the lower end of a fastening claw 23 on a door panel 21 side, the mold body 24 is attached to the flange part 22 of the door panel 21. In such a door mold 20, the root part side of the hook part 31 is formed of a hard material, and a flexible region made of a flexible material is provided on the distal part side. While maintaining the sure engagement with the fastening claw 23 by a sufficient extended length of the hook part 31 and the rigidity of the hard material at the root part, the working is facilitated by a flexible deformation of the flexible region a on the hook part distal end side at the time of the attaching/detaching. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The invention of this application relates to an automobile door molding which is mounted on a flange at an upper end of a door panel and seals a space between the door panel and an elevating glass.
[0002]
[Prior art]
As shown in FIG. 6, a door molding 3 that seals the space between the door panel 1 and the elevating glass 2 is attached to an upper end position (a door waist portion) of the door panel 1 facing the elevating part of the door of the automobile. Conventionally, this type of door molding employs an attachment method of fixing to a door panel by a separate resin clip after being extruded. However, in recent years, such an attachment method has been adopted from the viewpoint of reducing the number of parts and the manufacturing cost. The method has been stopped, and the following door molding structure has been adopted instead.
[0003]
As shown in FIGS. 7 and 8, in the door molding 3, a molding body 5 attached to a flange portion 4 at an upper end of the door panel 1 is formed to have a substantially U-shaped cross section, and side walls 6 and 7 of the molding body 5 are formed. A holding lip 8 for holding the flange portion 4 is extended on the inner surface, and a hook portion 9 bent in a substantially L-shape on the opposite side to the glass side is integrally formed at the lower end of the glass side wall 6. The hook 9 is for fixing the molding body 5 to the door panel 1 side, and the tip of the hook 9 is engaged with the lower end of a locking claw 10 extending downward from the flange 4. It has become.
[0004]
Therefore, in the case of the door molding 3, the molding body 5 is pushed in from above the flange 4 while being spread, and the hook 9 is hooked on the locking claw 10 so that the door molding 3 can be securely fixed to the flange 4. In the figure, reference numeral 11 denotes a seal lip extending from the side wall 6 of the molding body 5 and closely contacting the side surface of the elevating glass. In the door molding 3, the molding body 5 including the hook 9 is formed of a hard material to increase the holding force, and the seal lip 11 and the holding lip 8 are formed of a soft material to increase the followability to the mating member. Is formed.
[0005]
[Patent Document 1]
JP 2000-71763 A
[Problems to be solved by the invention]
By the way, in this type of door molding, it is required to surely prevent the molding body from falling off and backlash, but separately from this, it is required to be easily attached and detached at the time of assembly and maintenance.
[0007]
However, since the conventional door molding 3 has a structure in which the hook 9 at the lower end of the side wall of the molding main body 5 is wrapped around the lower surface side of the locking claw 10 and is hooked, the former requirement that emphasizes the functional aspect is required. If the extension length of the hook portion 9 is increased to satisfy the above, it is necessary to deform the molding body 5 and the holding lip 8 with a large force at the time of attachment and detachment, and furthermore, the work requires a delicate knack It becomes.
[0008]
That is, when assembling the door molding 3 to the flange portion 4, as shown in FIG. 7, the molding body 5 is driven into the glass side (the right side in the figure) and the holding lip 8 on the opposite side of the glass (the left side in the figure) is enlarged. In this state, the molding body 5 must be pushed downward while pushing the lower end of the molding body 5 open until the hook 9 turns around the lower surface of the locking claw 10. When the door molding 3 is detached from the flange part 4, as shown in FIG. 8, the molding body 5 is pushed in the glass direction until the hook part 9 is disengaged from the locking claw 10, and the contact point with the door panel 1 is used as a fulcrum. It must be rotated, thereby forcing the molding body 5 open. Therefore, if the extension length of the hook portion 9 is increased at this time, these operations become extremely difficult, and if each portion is forcibly deformed during the operation, the door molding 3 is likely to be damaged.
[0009]
On the other hand, if the extension length of the hook portion 9 is shortened in order to satisfy the latter requirement that emphasizes workability, it becomes difficult to obtain a feeling of fitting and moderation at the time of assembling work. Since it is not possible to cover the variation in the assembly, there is a possibility that the door molding 3 may fall off or rattle.
[0010]
Accordingly, an object of the invention of this application is to provide a door molding for an automobile that can achieve both secure mounting of a molding body to a flange portion and improvement in workability of attachment and detachment.
[0011]
[Means for Solving the Problems]
As a means for solving the above-mentioned problem, the invention according to claim 1 is a molding body having a substantially U-shaped cross section attached to a flange portion at an upper end of a door panel facing a glass elevating portion, and a glass side of the molding body. A sealing lip extending on the side wall and slidably in contact with the side surface of the elevating glass; bending from the lower end of the glass side wall of the molding body in a substantially L-shape toward the opposite side of the glass; A hook portion that engages with the lower end of a locking claw that is extended on a door molding for an automobile, wherein a base portion side of the hook portion is formed of a hard material, and a soft region made of a soft material is formed on a tip portion side. Was provided.
[0012]
In the case of the present invention, since the soft region on the tip end side of the hook portion is flexibly deformed when the door molding is attached and detached, the engagement and disengagement of the hook portion and the locking claw are performed without significantly deforming the molding body or the like. be able to. Further, since the hook portion does not shorten the extension length itself, it is possible to maintain reliable engagement with the locking claw after the assembly.
[0013]
According to a second aspect of the present invention, a soft region is provided in the hook portion on the tip side of the contact surface with the locking claw. In this case, in the state where the door molding is mounted, the hard region of the hook portion is located from the position immediately below the locking claw to the base portion side, so that the door molding can be more securely prevented from falling off and having a dullness by the hard region. .
[0014]
In a third aspect of the present invention, a boundary surface between the hard region and the soft region of the hook portion is provided so as to be inclined downward toward the tip end of the hook portion. In this case, when the molding body is rotated around the contact portion with the door panel as a fulcrum to remove the door molding, the soft region that interferes with the locking portion is flexibly deformed, so that the removal workability is further improved. Moreover, in this case, since the hard material is located below the portion of the soft region near the base of the hook portion, it is possible to maintain a secure engagement state between the hook portion and the locking claw after installation. it can.
[0015]
According to a fourth aspect of the present invention, a hard material skin layer is provided on the tip end side end surface of the hook portion. In this case, even when the edge portion of the locking claw abuts on the tip end side end surface of the hook portion when the door molding is attached, since the hard material skin layer is provided on the end surface, the locking claw bites into the end surface. It can be reliably prevented. Therefore, the mounting workability can be further improved.
[0016]
According to a fifth aspect of the present invention, a hard material skin layer is provided on the upper surface on the distal end side of the hook portion. In this case, even if the upper surface on the tip side of the hook abuts on the edge portion of the locking claw when the door molding is removed, since the hard material skin layer is provided on the upper surface on the tip side, the locking claw with respect to the upper surface is provided. Biting can be reliably prevented. Therefore, the removal workability can be further improved.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, embodiments of the invention of this application will be described with reference to the drawings.
[0018]
First, a first embodiment shown in FIG. 1 will be described.
[0019]
In the drawings, reference numeral 20 denotes a door molding according to the invention of this application, reference numeral 21 denotes a door panel of an automobile door, and reference numeral 22 denotes a molding mounting flange portion extending from an upper end of the door panel 20. The flange portion 22 is bent downward on the elevation glass side (right side in the figure), and the lower end of the bent portion serves as a locking claw 23 projecting downward.
[0020]
In the door molding 20, a molding main body 24 attached to the flange portion 22 from above is formed to have a substantially U-shaped cross section. The inner surfaces of the glass side wall 25 and the opposite glass side wall 26 of the molding main body 24 The holding lips 27 and 28 for holding the posture of the molding body 24 by sandwiching them from both sides are integrally formed. Further, a pair of seal lips 29, 29 is extended on the outer surface of the glass side wall 25, and the seal lip 29 is slidably in close contact with the elevating glass (not shown). A thin lip 30 is provided at the lower end of the anti-glass side wall 26, and the thin lip 30 comes into close contact with the outer surface of the door panel 21 with almost no step.
[0021]
At the lower end of the glass side wall 25 of the molding body 24, a hook portion 31 having a substantially L-shaped cross section is provided. The upper end of the hook portion 31 is engaged with the lower end of the locking claw 23 on the door panel 21 side. I have. The hook portion 31 is formed of a hard material (hard resin or rubber) from the base portion to the contact portion with the locking claw 23 (the portion where the edge portion 23a of the locking claw 23 on the side opposite to the glass is in contact). The distal end side of the contact portion is formed of a soft material (a soft resin or rubber such as a thermoplastic elastomer). Hereinafter, a portion formed of a soft material on the tip end side of the hook portion 31 is referred to as a “soft region a”. The tip end surface of the hook portion 31 is formed so as to be tapered so that the upper corner forms an acute angle.
[0022]
In the case of this embodiment, the molding body 24 is formed of the same hard material as the base of the hook 31, and the sealing lip 29 and the holding lips 28, 29 are formed of the same soft material as the tip of the hook 31. Is formed by
[0023]
In the door molding 20 of this embodiment, since the soft region a is provided on the tip side of the hook portion 31, the tip of the hook portion 31 contacts the flange portion 22 and the locking claw 23 when the door molding 20 is attached or detached. When touching, the soft region a is deformed flexibly at that time. Therefore, in this door molding 20, attachment and detachment can be performed without forcibly bending and deforming the molding main body 24.
[0024]
Further, since the door molding 20 does not shorten the extension length of the hook portion 31, even if there is some variation in the assembly after being once attached to the flange portion 22, the hook portion 31 may be provided. And the engaging claw 23 can be surely engaged. In particular, in the case of this embodiment, since the soft region a of the hook portion 31 is provided on the tip side of the contact portion of the locking claw 23 with the edge portion 23a on the opposite side of the glass, the hook portion having high rigidity is provided. The lower surface of the locking claw 23 can be securely locked by the hard material portion 31.
[0025]
Therefore, in the door molding 20, it is possible to reliably prevent the door molding 20 from falling off or rattling without sacrificing the attaching and detaching workability.
[0026]
Subsequently, second to fifth embodiments shown in FIGS. 2 to 5, respectively, will be described. In the following, the same portions as those in the first embodiment are denoted by the same reference numerals, and the description of the overlapping portions will be omitted.
[0027]
In the second embodiment shown in FIG. 2, the boundary surface between the hard region b on the base portion side of the hook portion 31 and the soft region a on the distal end portion side is such that c is inclined downward toward the distal end side of the hook portion 31. It is provided in. In the door molding 20 of this embodiment, emphasis is placed on the workability of detaching from the flange portion 22. As described above, the boundary surface c is inclined so that the soft region a is provided near the upper corner of the tip of the hook portion 31. Therefore, when the molding body 24 is rotated with the contact point with the door panel 21 as a fulcrum at the time of removal, the vicinity of the corner at the upper end of the hook portion 31 pressed against the locking claw 23 is flexibly deformed.
[0028]
Further, in the door molding 20 of this embodiment, the soft region a partially overlaps the contact surface with the locking claw 23, but since the boundary surface c is inclined, the soft region a is in contact with the locking claw 23. A layer of hard material of sufficient thickness is located below the part. Therefore, rigidity does not decrease near the contact surface with the locking claw 23.
[0029]
The inclination of the boundary surface c may be either linear or curved, but from the viewpoint of avoiding interference with the locking claw 23 when removing the door molding 20, as shown in FIG. It is desirable that the shape be a circular curve centered on the contact point d serving as a rotation fulcrum.
[0030]
In the third embodiment shown in FIG. 3, a thin hard material skin layer 35 covering the front end surface of the hook portion 31 is added to the door molding 20 of the first embodiment, and the third embodiment shown in FIG. In the fourth embodiment, a thin hard material skin layer 36 that covers the top surface on the distal end side of the hook portion 31 is added to the door molding 20 of the first embodiment.
[0031]
In the case of the third embodiment shown in FIG. 3, the soft region a allows the hook portion 31 to be flexibly deformed when the door molding 20 is attached and detached, while the hard material skin layer 35 allows the distal end surface of the hook portion 31 to be deformed. High rigidity and strength can be maintained. Therefore, in attaching the door molding 20, when the hook portion 31 gets over the locking claw 23, the edge portion of the locking claw 23 does not bite into the front end surface of the hook portion 31. As a result, the mounting is performed more smoothly and securely. Can be realized.
[0032]
In the case of the fourth embodiment shown in FIG. 4, the rigidity of the upper surface on the distal end side of the hook portion 31 is also increased by the hard material skin layer 36 while allowing the soft deformation of the hook portion 31 by the soft region a. Strength can be increased. As a result, when the door molding 20 is removed, the edge of the locking claw 23 does not bite into the upper surface on the distal end side of the hook 31. As a result, smooth and reliable removal becomes possible.
[0033]
In the fifth embodiment shown in FIG. 5, hard material skin layers 35 and 36 are provided on the end surface and the upper surface on the distal end side of the hook portion 31, respectively. This door molding 20 is a third embodiment and a fourth embodiment. The effect of the form can be obtained together.
[0034]
Since the hard material generally has a low friction coefficient, these door moldings 20 using the hard material skin layers 35 and 36 can also enhance the slidability of the hook portion 31 and the locking claw 23. Further, in any of the embodiments, the soft material is bonded to the back surface side of the hard material skin layers 35, 36, so that even if the hard material skin layers 35, 36 are attached and temporarily deformed when removed, the soft material is The shape can be quickly restored by the action of.
[0035]
Further, it is preferable in terms of molding that the hard material skin layers 35 and 36 be formed continuously from the hard material portion on the base portion side of the hook portion 31. In this case, the hard material skin layers 35 and 36 are attached and detached at the time of attachment and detachment. It is desirable to select a material having excellent hinge characteristics as the hard material because the connecting portion of the substrate is largely bent.
[0036]
【The invention's effect】
As described above, the invention of this application can flexibly deform the soft region on the tip end side of the hook portion when attaching and detaching the door molding, so that the hook portion can be attached without shortening the extension length itself. In addition, workability at the time of removal can be improved. Therefore, according to the present invention, at the same time, a high-level requirement in terms of the function of securely engaging the flange portion without dropping or rattling and a requirement in terms of workability of facilitating attachment and detachment are simultaneously achieved. Can be charged.
[0037]
Further, in the present invention, the soft area of the hook portion is flexibly deformed when the door molding is attached or detached, so that it is not necessary to forcibly and largely deform the molding body and the like, thereby preventing the door molding from being damaged or the like. There is an advantage that can be.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a first embodiment of the invention of this application and corresponding to an AA cross section in FIG. 6;
FIG. 2 is a sectional view similar to FIG. 1, showing a second embodiment of the present invention;
FIG. 3 is a sectional view similar to FIG. 1, showing a third embodiment of the present invention;
FIG. 4 is a sectional view similar to FIG. 1, showing a fourth embodiment of the present invention;
FIG. 5 is a sectional view similar to FIG. 1, showing a fifth embodiment of the present invention;
FIG. 6 is a side view showing an automobile door.
FIG. 7 is a cross-sectional view showing a conventional technique and corresponding to a cross-section taken along the line AA in FIG. 6 when a door molding is assembled.
FIG. 8 is a cross-sectional view showing the same technology and corresponding to a cross section taken along the line AA of FIG. 6 when a door molding is removed.
[Explanation of symbols]
20 door molding 21 door panel 22 flange 23 locking claw 24 molding main body 25 glass side wall 29 seal lip 31 hook portions 35 and 36 hard material coating layer a soft region b hard region c Boundary

Claims (5)

A molding body having a substantially U-shaped cross section attached to a flange portion at an upper end of the door panel facing the glass elevating portion; and a seal lip extending to the glass side wall of the molding body and slidably contacting the side surface of the elevating glass. A hook portion bent substantially L-shaped from the lower end of the glass side wall of the molding body to the opposite side of the glass, and engaged with a lower end of a locking claw extending downward from the flange portion of the door panel. Car door molding,
An automobile door molding, wherein a base portion of the hook portion is formed of a hard material, and a soft region made of a soft material is provided on a tip portion side. The automobile door molding according to claim 1, wherein a soft region is provided in the hook portion on a tip side with respect to a contact surface with a locking claw. The automobile door molding according to claim 1 or 2, wherein a boundary surface between the hard region and the soft region of the hook portion is provided so as to be inclined downward toward a tip end side of the hook portion. The automobile door molding according to any one of claims 1 to 3, wherein a hard material skin layer is provided on an end surface on a tip end side of the hook portion. The car door molding according to any one of claims 1 to 4, wherein a hard material skin layer is provided on an upper surface on a tip end side of the hook portion.

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