JP3943325B2 - Automotive door trim structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an automobile door trim structure in which a door lock operating rod for operating an automobile door lock is installed.
[0002]
[Prior art]
Conventionally, as this type of automobile door trim structure, for example, the structure shown in FIG. 8 is known.
[0003]
According to FIG. 8, the door trim main body b having the armrest a is configured by inserting and installing a door lock operation rod d for performing a door lock opening / closing operation through the waist portion c so as to be movable up and down.
[0004]
As shown in FIG. 9 which is a cross-sectional view taken along the line CC in FIG. 8, the door lock operating rod d is guided in its vertical movement by the guide tube portion h of the lock knob f attached to the mounting recess e in the waist portion c. It has become so.
[0005]
That is, the lock knob f is configured by projecting a guide tube portion h on the lower surface of the main body portion g formed in a substantially dish-shaped cross section, and the guide tube portion h has an insertion guide hole whose upper portion is formed in a small diameter. i, and a guide protrusion j that is elastically swingable in the insertion guide hole i, and guides the vertical movement of the door lock operation rod d while elastically contacting the door lock operation rod d. It is configured to perform a lock opening / closing operation.
[0006]
The lock knob f is a mounting hole m in which an engagement piece k is formed to protrude from the lower surface of the main body g while being spaced apart from the outer periphery of the guide tube portion h, and the engagement piece k is formed at a substantially central portion of the recess e. And is attached to the door trim body b.
[0007]
[Problems to be solved by the invention]
In the conventional door trim main body b configured as described above, when the lock knob f is fitted in the recessed portion e, the door trim main body b and the lock knob are manufactured separately from each other by resin molding. As a result, a gap x and a surface difference y as shown in FIG. 9 may be generated, and as a countermeasure against this, a very time-consuming work such as fine adjustment and tuning of the mold is required.
[0008]
SUMMARY OF THE INVENTION In view of the above, an object of the present invention is to provide an automotive door trim that does not require fine adjustment or tuning of a molding die even when a dimensional difference occurs during molding of a door trim main body or a lock knob.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, the present invention is configured such that an insertion hole is provided in a waist portion of a door trim main body, and a door lock operating rod is inserted into the insertion hole so as to be movable up and down to perform a door lock opening / closing operation. A door trim structure for automobiles, which is equipped with a lock knob with a guide tube part formed with an insertion guide hole that guides the vertical movement of the door lock operating rod on the back side of the waist part. The guide protrusion is configured to communicate with the hole, and a guide protrusion is provided in the insertion guide hole to guide the vertical movement while elastically contacting the door lock operating rod .
[0010]
According to the present invention, since the lock knob is mounted on the back side of the waist portion of the door trim main body, the lock knob does not appear on the surface of the door trim main body, resulting in a dimensional difference during molding of the lock knob or door trim main body. However, there is no need for fine adjustment and tuning of the mold to eliminate the difference in surface and gap of the lock knob relative to the door trim body.
[0011]
Further, according to the present invention, since the lock knob is formed by forming a plurality of rib pieces so as to surround the guide cylinder part, the reinforcing structure of the guide cylinder part with respect to the lock knob is taken.
[0012]
Further, according to the present invention, since the outer end of the rib piece is formed on the inclined surface portion extending toward the guide tube portion, the inclined surface portion is operated by the door lock operation when the door lock operation rod is inserted and assembled to the guide tube portion. The scissors can be guided to be easily inserted and assembled into the guide tube portion.
[0013]
Further, according to the present invention, since the outer end side of the guide tube portion is chamfered, the insertion and assembling work of the door lock operating rod into the guide tube portion is further facilitated by chamfering.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.
[0015]
1 is a perspective view depicting a part of an automobile door trim that employs the first embodiment of the present invention, FIG. 2 is a cross-sectional view taken along the line AA in FIG. 1, and FIG. 3 is a cross-sectional view taken along the line BB in FIG. Sectional drawing and FIG. 4 are perspective views of the lock knob by 1st Embodiment.
[0016]
In the figure, a door trim main body 2 having an armrest 1 has an insertion hole 3a formed in a waist portion 3, and a door lock operating rod 4 for performing door lock opening / closing operation is inserted and installed so as to be movable up and down.
[0017]
As shown in FIGS. 2 and 3, the door lock operation rod d is guided by the lock knob 5 that is resin-molded by a molding die so as to guide the vertical movement during the door lock opening / closing operation.
[0018]
That is, the lock knob 5 includes a main body portion 6 formed in a substantially flat plate shape and a guide cylinder portion 7 formed so as to protrude above and below the main body portion 6.
[0019]
The guide tube portion 7 is formed so as to extend lower than the upper portion with respect to the main body portion 6, and has an insertion guide hole 7 a as an inner hole extending in the axial direction. A guide protrusion 8 is provided in the guide hole 7a so as to protrude elastically. The guide protrusion 8 is configured to guide the up and down movement of the door lock operation rod 4 while elastically contacting the door lock operation rod 4 to perform the door lock opening / closing operation.
[0020]
The main body 6 of the lock knob 5 has a plurality of mounting holes 6a formed therein. After the mounting boss 3b protruding from the back surface of the waist 3 is inserted into the mounting hole 6a, the mounting hole of the mounting boss 3b is inserted. The protruding portion from 6a is crimped and welded, and is attached to the back side of the waist portion 3. At this time, the insertion guide hole 7a of the guide tube portion 7 and the insertion hole 3a on the waist portion 3 side communicate with each other.
[0021]
In the case of the configuration described above, the main body portion 6 of the lock knob 5 is mounted on the back side of the waist portion 3 of the door trim main body 2, so that the lock knob 5 does not appear on the surface of the door trim main body 2. Alternatively, even if a dimensional difference occurs in the door trim body 2 at the time of molding, there is no need for fine adjustment or tuning of the molding die to eliminate the surface difference or gap of the lock knob 5 with respect to the door trim body 2.
[0022]
The main body 6 of the lock knob 5 may be attached to the waist 3 using screws or the like in addition to crimping and welding the mounting boss 3b.
[0023]
Next, a second embodiment according to the present invention will be described with reference to FIGS.
[0024]
FIG. 5 is a perspective view drawn from the upper surface side of the lock knob adopting the second embodiment according to the present invention, FIG. 6 is a perspective view drawn from the back side, and FIG. It is BB sectional drawing in the same FIG.
[0025]
According to the second embodiment depicted in FIGS. 5 to 7, compared to the first embodiment, the main body portion 6 of the lock knob 5 includes a plurality of guide tube portions 7 so as to surround and separate from each other. The difference is that the rib piece 9 is formed.
[0026]
The rib piece 9 is configured such that an outer end portion thereof is formed on an inclined surface portion 9 a extending toward the guide tube portion 7, and the inclined surface 9 is continuous with the lower end of the guide tube portion 7. Further, a chamfer 7 b is provided on the outer end on the lower end side of the insertion guide hole 7 a of the guide cylinder portion 7.
[0027]
With this configuration, the rib piece 9 serves as a reinforcing structure of the guide cylinder portion 7 with respect to the main body portion 6 of the lock knob 5, and the two inclined points 9 a formed at the outer end of the rib piece 9 are two points in FIG. 7. When the door lock operating rod 4 is inserted and assembled into the insertion guide hole 7a of the guide tube portion 7 as viewed in a chain line, the door lock operating rod 4 is guided to the insertion guide hole 7a side by the inclined surface portion 9a, and easily It can be inserted and assembled into the insertion guide hole 7a of the guide tube portion 7.
[0028]
Further, since the outer end side of the guide tube portion 7 is further provided with a chamfered portion 7b, an operation of inserting and assembling the door lock operating rod 4 into the insertion guide hole 7b of the guide tube portion 7 by the chamfer 7b. It becomes easier.
[0029]
【The invention's effect】
As described above, according to the present invention, since the lock knob is mounted on the back side of the waist portion of the door trim main body, the lock knob does not appear on the surface of the door trim main body, and at the time of molding the lock knob or the door trim main body. Even if a dimensional difference occurs, it is not necessary to finely adjust or tune the mold to eliminate the surface difference or gap of the lock knob relative to the door trim body.
[Brief description of the drawings]
FIG. 1 is a perspective view depicting a part of an automotive door trim that employs a first embodiment of the present invention.
FIG. 2 is a cross-sectional view taken along the line AA of FIG.
FIG. 3 is a cross-sectional view taken along the line BB in FIG.
FIG. 4 is a perspective view of a lock knob according to the first embodiment.
FIG. 5 is a perspective view drawn from the upper surface side of a lock knob adopting a second embodiment according to the present invention.
FIG. 6 is a perspective view similarly drawn from the back side.
7 is a cross-sectional view taken along the line BB in FIG. 2, which is similar to FIG.
FIG. 8 is a perspective view illustrating a part of a conventional automobile door trim.
9 is a cross-sectional view taken along the line CC of FIG.
[Explanation of symbols]
2 Door body 3 Waist part 4 Door lock operation rod 5 Lock knob 6 Body part 7 Guide cylinder part 7b Chamfer 9 Rib piece 9a Inclined surface

Claims (4)

An automotive door trim structure in which an insertion hole is provided in a waist portion of a door trim main body, and a door lock operation rod is inserted into the insertion hole so as to be movable up and down to perform a door lock opening / closing operation. A lock knob having a guide tube portion formed with an insertion guide hole for guiding the vertical movement of the door lock operating rod is mounted on the rear surface side so that the insertion guide hole communicates with the insertion hole. In addition, the door trim structure for an automobile is characterized in that a guide projection is provided in the insertion guide hole to guide the vertical movement while elastically contacting the door lock operating rod .   The automobile door trim structure according to claim 1, wherein a plurality of rib pieces are formed on the lock knob so as to surround the guide tube portion. The automobile door trim structure according to claim 2 , wherein an outer end of the rib piece is formed in an inclined surface portion extending toward the guide tube portion.   4. The door trim structure for an automobile according to any one of claims 1 to 3, wherein the outer end side of the guide tube portion is chamfered.

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