JP2003321953A - Door lock operating portion for motor vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the assembly workability of a door lock operating portion of a motor vehicle without degrading the appearance of the interior finish surface of the door portion and to reduce the production cost of metal molds for door trims or the like. <P>SOLUTION: This is a door lock operating portion 2 of the motor vehicle having a door trim 7 with a curved shape, a lock knob 3 protruding from the interior surface 8 of the door trim 7, and a lock knob insertion hole 11 guiding the lock knob 3, and a lock knob holder 13 fixed to the door trim; the lock knob holder 13 is inserted and fixed to a linking hole 33 of the door trim 7, and the linking hole 33 is provided at least across a part of a curved shape of the door trim 7 in this door lock operating portion 2. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door lock operating portion for locking and unlocking a door lock of an automobile or the like indoors.

[0002]

2. Description of the Related Art A door lock mechanism is provided in a door portion of an automobile or the like. The operation of locking and unlocking a normal door lock is performed outside the vehicle using the owner's key or a dedicated transmitter, but inside the vehicle, the lock knob 3 provided inside the door is manually operated. It is carried out by moving. Recently, there are a centralized lock system that opens and closes all door locks at one place, and a vehicle speed sensitive door lock system that automatically locks at a certain speed or more. The structure is almost the same.

FIGS. 9A and 9B are perspective views showing the structure of a conventional door section 1. In addition, FIG.
It is the figure which expanded the operation part 2 of the door lock of the vehicle which is the principal part of (b). The door portion 1 is mainly a door inner panel 5 that forms the door portion 1, and a door trim 7 that is fixed to the vehicle inner side of the door inner panel 5 and constitutes an interior surface of the door portion 1.
The lock knob 3 is fixed to the door inner panel 5 and is provided so as to project from the upper shoulder opening 2a of the interior surface 8 of the door trim 7 for operating the door lock.

Further, the door inner panel 5 is provided with a lock mechanism (not shown) for locking the door to the vehicle body. Since the lock mechanism is connected to the lock knob 3 via the rod, the lock knob 3 must be fixed to the door inner panel 5 like the lock mechanism. Further, the lock knob 3 needs to be provided so as to project from the interior surface 8 of the door trim 7 so that the door lock can be operated from inside the vehicle. Therefore, the door trim 7
When mounting the door inner panel 5 on the vehicle interior surface side, the lock knob 3 fixed to the rod provided on the door inner panel 5 is inserted into the lock knob insertion hole 11 provided at the upper shoulder opening 2a from the back side of the door trim 7. Work is being done. This work requires a longer assembly time than other works because the lock knob 3 must be inserted while visually checking it from above the lock knob insertion hole 11. Further, in the above-described insertion work, the lock knob 3 may be rubbed against the back surface of the door trim 7, and thus the door trim 7 and the lock knob 3 may be damaged.

Many techniques have been conventionally proposed for the structure of the lock operation portion of the vehicle door as described above. For example, in Japanese Patent Application Laid-Open No. 11-350813, in order to facilitate the work of inserting the lock knob into a lock knob insertion hole formed in the interior surface of the door trim, the lock knob is inserted into the back surface of the interior surface of the door trim. A technique is disclosed in which a guide rib that leads to the hole 11 is provided to improve the mounting workability. Also, the actual fair 2-4
No. 9162 or Japanese Patent Laid-Open No. 8-4368 discloses a technique of attaching a grommet or a door trim holder, which is provided separately from the door trim, to the lock knob insertion hole.

[0006]

However, when a guide rib for guiding the lock knob 3 is provided in the vicinity of the lock knob insertion hole 11, the mold for molding the door trim 7 is divided into upper and lower halves, and the shape of the guide rib is changed. A lateral slide mold is required for molding. The slide mold has a complicated mold structure due to the slide structure at the time of releasing the mold, the drawing speed, and the like, so that the mold cost is higher than that of a mold which is normally divided into two directions. Furthermore, since the thickness of the guide ribs after molding is smaller than the thickness of the main body of the door trim 7, there is a possibility that a problem of durability of the mold in the thin wall portion and a problem of appearance due to sink of the interior surface may occur. There was also.

The present invention has been made in view of such circumstances, and an object thereof is to further improve the shape of a molding die for the door trim without deteriorating the curved surface shape for maintaining the aesthetic appearance of the interior surface of the door trim. It is an object of the present invention to provide a vehicle door lock operation part that can be simplified and reduced in cost. Further, during the work of attaching the door trim to the interior surface side of the door inner panel, the lock knob fixed to a rod provided on the door inner panel,
To provide an operation part of a vehicle door lock capable of easily performing an operation of inserting the lock knob through hole provided in the door trim from the back side of an interior surface of the door trim and improving work efficiency. is there.

[0008]

In order to solve the above-mentioned problems of the prior art, the present invention provides a door trim having a curved shape, a lock knob protruding from the interior surface of the door trim, and a lock knob insertion for guiding the lock knob. A door lock operating part of a vehicle having a hole and a lock knob holder fixed to the door trim, wherein the lock knob holder is inserted and fixed in a locking hole of the door trim, and the locking hole is It is provided over at least a part of the curved shape of the door trim. In addition, a plate-shaped guide rib for guiding the lock knob is provided on the back side of the interior surface of the lock knob holder, the guide rib is arranged radially around the lock knob insertion hole, and the tip end portion of the lock knob is It has a curved surface shape so as not to get caught in the guide ribs. Further, the guide ribs are provided at least at three or more locations at equal angular intervals in the circumferential direction of the lock knob insertion hole. The guide rib is provided so as to project inward from the lock knob insertion hole, and the inner side surface of the guide rib is inclined or curved so that the inner diameter formed by the inner side surface of the guide rib becomes larger as it goes downward. At the end of the lock knob holder on the inside of the vehicle, a contact portion is provided that restricts the height direction position and the inside / outside direction position of the lock knob holder with respect to the door trim by sandwiching the periphery of the locking hole of the door trim. ing. A step-shaped portion that receives an end portion of the lock knob holder is provided on a peripheral portion of the locking hole so that an inner surface of the door trim after locking and an inner surface of the lock knob holder have the same surface height. There is.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an operating portion of a vehicle door lock according to an embodiment of the present invention will be described in detail with reference to the drawings. The present invention is not limited to the following embodiments, and can be implemented with appropriate modifications.

FIG. 1 is a side view of the interior side of a door portion 1 according to an embodiment of the present invention. The door unit 1 is mainly the door unit 1.
A door inner panel 5 that forms a door, a door trim 7 that forms an interior surface of the door portion 1, and a top shoulder opening of the interior surface 8 of the door trim 7 that is fixed to the door inner panel 5 and that allows the door lock to be operated. The lock knob 3 is provided so as to project from 2a. As shown in FIGS. 2 to 6, the door trim 7 is fixed to the interior surface 8 side, and the lock knob holder 13 is provided with a lock knob insertion hole 11 for allowing the lock knob 3 to protrude from the interior surface 8. Is provided as a separate part. Further, the lock knob holder 13 is formed to include a curved surface shaped portion 25 which becomes a part of the interior surface 8, and the door trim 7 is further provided with a locking hole 33 for engaging the lock knob holder 13 and the curved surface shaped portion 25. Has been done.

The upper shoulder opening 2a is a portion of a window frame in which the interior surface 8 forms a substantially horizontal surface in the vicinity of the lower side of the door window glass 9, and further, the upper shoulder opening 2a is the front and rear of the vehicle. An operation unit for operating the door lock is provided on the rear side with respect to the direction (refer to the door lock operation unit 2 in FIG. 10). The lock knob 3 has a lock knob insertion hole 11
It is slidably supported in the up and down direction, and when pushed in downward, the door is locked, and when pulled upward, the door lock is released. The upper shoulder 2a is
The door lock may be provided with a small depression in conformity with the aesthetic shape of the operation portion for operating the door lock, or may be provided with a gentle slope instead of the curved surface. The door inner panel 5 has a structure in which parts formed by bending or drawing sheet metal are fixed by spot welding or the like, whereby the rigidity of the door portion 1 is ensured. The door trim 7 is mainly made of a molded product such as a resin, and an armrest 15 and a door inside handle 17 are attached to the interior surface of the door 1.

2 to 5 are external views of the lock knob holder according to the embodiment of the present invention. 2 is a view of the lock knob holder 13 as seen from the back side 14 of the interior surface 8, FIG. 3 is a view of the lock knob holder 13 as seen from the direction of the curved surface portion, FIG. 4 is a view as seen from above FIG. 2, and FIG. The figure which looked at FIG. 4 from the left side is shown. Similar to the door trim 7, the lock knob holder 13 is made of a molded product such as resin, and has a lock knob insertion hole 11, a guide rib 19 for guiding a linear movement of the lock knob, and a lock knob holder 1 in its main body.
A locking claw 21 for locking the locking of the lock knob 3 and a positioning abutting portion 23 for restricting the locking position of the lock knob holder 13 are provided.

The lock knob holder 13 has a lock knob insertion hole 11 provided in the interior surface 8 of the door trim 7 in the vicinity of the lock knob holder 13 as a separate component, and its outer shape is similar to that of the interior surface 8 of the door trim 7. In order to keep it, it has a small square shape with one side of about 50 mm. Of course, the shape and size may be changed so as not to impair the aesthetic appearance of the interior surface 8. Further, the lock knob holder 13 has a curved surface shaped portion 25 in its main body portion. This curved surface shape portion 25 has the same curved surface shape as the interior surface 8 of the door trim 7 in the past.
Shows a structure including a curved surface formed downward from the surface of the lock knob insertion hole 11 toward the inside of the vehicle. Further, the curved surface shape portion 25 is formed when the lock knob holder 13 is molded by a mold, and the detailed configuration includes the guide rib 19 described later, so that it can be manufactured by a small-sized mold. ,
The die cost can be kept relatively low. Further, the locking hole 33 is formed in the upper shoulder opening 2a portion of the interior surface 8 of the door trim 7, and has a structure in which the lock knob holder 13 is locked. Further, the outer shape of the locking hole 33 is a hole shape having a downward surface corresponding to the curved surface shape portion 25. (See Figure 6)

The lock knob insertion hole 11 has a hole shape that conforms to the outer shape of the lock knob 3, and has a round hole shape having a clearance through which the lock knob 3 can be smoothly inserted. Specifically, the lock knob insertion hole 11 and the lock knob 3
It suffices if there is a gap to the extent that the outer shape of the lock knob 3 does not rattle due to variations in the tolerance of the finished product.

Further, the lock knob holder 13 is provided with a guide rib 19 on the back surface 14 of the interior surface 18 of the lock knob holder 13. The guide rib 19 is formed in a plate shape having a thickness, and the lock knob 3 has a lock knob insertion hole. Lock knob insertion hole 11 so as to guide 11
The guide ribs 19 arranged radially around the center are arranged at equal angular intervals in the circumferential direction of the lock knob insertion hole 11, and are provided at least at three or more places.
In the present embodiment, the guide ribs 19 are provided at eight locations divided at equal angular intervals in the circumferential direction of the lock knob insertion hole 11 (see FIG. 2). The plane that guides the lock knob 3 is determined if there are three guide ribs 19, but if there are three or more guide ribs 19, the lock knob 3 can be guided more stably.

FIG. 6 is an explanatory view showing a state in which the lock knob holder 13 according to the embodiment of the present invention is locked to the interior surface 8 of the door trim 7. Further, FIG. 7 is an explanatory view of a state in which the lock knob 3 is inserted into the lock knob insertion hole 11 according to the embodiment of the present invention, and is an enlarged cross-sectional view as viewed from a cross-section BB direction of FIG. 6. Further, FIG. 8 is a cross-section C- of FIG.
It is a cross-sectional enlarged view seen from the C direction.

The lock knob 3 is formed into a curved surface shape 31 which does not engage the guide rib 19 at the tip end in the protruding direction. In the present embodiment, as shown in FIG. 7, the tip portion has an R surface that is substantially spherical.

In the present embodiment, the guide rib 19 is formed in a plate-like substantially fan shape (see FIG. 7) and guides the lock knob 3 with the substantially fan-shaped arc portion as the guide portion 20. The substantially fan-shaped circular arc portion has one end as the tip 20b of the guide portion 20 and the other end as the upper end 20a of the guide portion 20. The upper end 20a of the guide portion 20 of the guide rib 19 has a lock knob holder 13
It is arranged on the inner surface 12 of the inner surface 18 of the lock knob 3, which is substantially the same as or larger than the outer shape of the lock knob 3 and smaller than the lock knob insertion hole 11.
The back surface 14 is a surface that is in the protruding direction of the lock knob 3 and is perpendicular to the central axis of the lock knob insertion hole 11. As a result, the lock knob 3 does not rub directly against the outer periphery of the lock knob insertion hole 11, can smoothly guide the lock knob 3, and has a structure that prevents abnormal noise such as rubbing noise. Further, the guide portion 20 of the guide rib 19 is configured to be separated from the central axis of the lock knob insertion hole 11 in the direction opposite to the protruding direction of the lock knob 3.

As described above, the upper end 20a of the guide of the guide portion 20 which is the substantially fan-shaped arc is provided on the circumference of the inner diameter 12, and the tangent line of the arc of the upper end 20a of the guide is inserted through the lock knob. It is arranged parallel to the central axis of the hole 11. Accordingly, when the lock knob 3 is inserted in the direction of the interior surface 8, even if the lock knob 3 is displaced from the central axis of the lock knob insertion hole 11, the guide portion 20 gradually moves toward the central axis direction of the lock knob insertion hole 11. As you can see, it is always guided.

The lock knob holder 13 is provided with locking claws 21 for locking the door trim 7 at both left and right ends sandwiching the lock knob insertion hole 11, and the door trim 7 is provided at the lower side in the vehicle height direction. Positioning abutting portions 23 that regulate the upper and lower locking positions of and are provided. In the embodiment of the present invention, a method of fixing the lock knob holder 13 will be described by using a method of fixing by locking.
Lock knob holder 1 using fasteners and methods such as bonding
It is also possible to fix 3. In addition, the door trim 7
The locking hole 33 of the lock knob holder 13 has a stepped portion 29 corresponding to the thickness of the lock knob holder 13 so that the interior surface 8 of the door trim 7 and the interior surface 18 of the lock knob holder 13 are flush with each other.
Is provided.

The locking claw 21 engages with the step-shaped portion 29 provided in the locking hole 33 to fix the lock knob holder 13. The locking claw 21 has a shape in which the lock knob holder 13 is inserted from the interior surface 8 side of the door trim 7. Further, the shape of the locking claw 21 has a thicker wall thickness at the tip portion, and the wall thickness portion is engaged with the lower side of the step-shaped portion 29 to prevent the lock knob holder 13 from falling off. . Further, since the locking claw 21 is made of resin, the engaging portion can be removed by the elasticity of the base portion of the locking claw 21. The positioning pad 23 has a bifurcated shape that is sandwiched between stepped portions 29 provided on the door trim 7. The step-shaped portion 29 is provided on the interior surface 8 of the door trim 7.
A step corresponding to the thickness of the lock knob holder 13 is provided so that no step can be formed on the interior surface 18 of the lock knob holder 13. Further, the positioning contact portion 23, together with the step-shaped portion 29, determines the mounting position of the lock knob holder 13.

The door lock operation portion of the vehicle having the above structure will be described below in terms of the assembly procedure. When the door trim 7 is fixedly attached to the door inner panel 5, the lock knob 3 is assembled so as to project from the locking hole 33 of the lock knob holder 13 formed in the door trim 7 including the curved portion 25. Locking hole 33
Since the curved shape portion 25 is also included, when the lock knob 3 is passed through the locking hole 33, it is possible to work not only by looking through the locking hole 33 but also through the lateral direction. Next, the work of inserting the lock knob 3 into the lock knob insertion hole 11 provided on the lock knob holder 13 is performed.
On the back side 14 of the interior surface 18 of the lock knob holder 13,
A guide rib 19 is provided, and by applying the guide rib 19 to the tip portion of the lock knob 3, the lock knob 3 can be easily inserted into the lock knob insertion hole 11. Next, the work of locking the lock knob holder 13 to the door trim 7 is performed. Lock knob holder 1
3 is a locking claw 21 provided on the lock knob holder 13.
The step-shaped portion 29 provided in the locking hole 33 is locked and fixed. The lock knob holder 13 is inserted and locked from the interior surface 8 side of the door trim 7.

In the vehicle door lock operating portion according to the embodiment of the present invention, the door trim 7 having a curved shape, the lock knob 3 protruding from the interior surface 8 of the door trim 7, and the lock knob insertion hole for guiding the lock knob 3 are provided. Have 11,
A door lock operating part (2) of a vehicle having a lock knob holder (13) fixed to the door trim (7), wherein the lock knob holder (13) is inserted into and fixed to a locking hole (33) of the door trim (7). 33 is provided over at least a part of the curved shape of the door trim 7. Thereby, when the lock knob 3 is projected toward the interior surface 8 side of the door trim 7 at the time of assembling, the lock knob 3 may be inserted through the locking hole 33 provided in the lock knob holder 13.
Work efficiency is improved compared to the past. Further, since the locking hole 33 is also provided including the curved surface portion 25, when the lock knob 3 is passed through the locking hole 33, the locking hole 33 is not only looked from above the locking hole 33 but also from the lateral direction. Since work can be performed, workability can be improved.

In the vehicle door lock operating portion according to the embodiment of the present invention, a plate-shaped guide rib 19 for guiding the lock knob 3 is provided on the back side 14 of the interior surface of the lock knob holder 13. The guide ribs 19 are arranged radially around the lock knob insertion hole 11, and the tip end of the lock knob 3 has a curved surface shape so as not to be caught by the guide rib 19, so that the lock knob 3 has a large hole. After passing through the locking hole of the lock knob holder 13 having a shape, when attaching the lock knob holder 13 so as to cover it from above the lock knob 3, it is easy to align the lock knob 3 with the position of the lock knob insertion hole 11 provided in the lock knob holder 13, Moreover, the lock knob 3 can be easily inserted without being caught in a corner or the like. Further, since the mold for manufacturing the door trim 7 can be manufactured without having a complicated shape for molding the guide ribs 19, two molds of the door trim 7 and the lock knob holder 13 are necessary, but the total mold is required. It is possible to reduce the die cost in the case of.

Further, in the vehicle door lock operating portion according to the embodiment of the present invention, the guide ribs 19 are provided at least at three positions at equal angular intervals in the circumferential direction of the lock knob insertion hole 11. The lock knob 3 can be easily guided in the direction of the central axis of the lock knob insertion hole 11.

Further, in the vehicle door lock operating portion according to the embodiment of the present invention, the guide rib 19 is provided so as to project inward of the lock knob insertion hole 11 and is formed by the inner side surface of the guide rib 19. Inner diameter 12
However, since the inner side surface of the guide rib 19 is inclined or curved so that it becomes larger as it goes downward, even if the lock knob 3 is pushed in deviating from the center of the lock knob insertion hole 11, the lock knob 3 can be securely inserted. It is possible to guide in the direction of the central axis of the hole 11.

Further, in the vehicle door lock operating portion according to the embodiment of the present invention, the lock knob holder 13 has an end portion on the inner side of the vehicle, and a peripheral edge of the locking hole 33 of the door trim 7 is sandwiched therebetween. The lock knob holder 13
Since the abutting portion 23 for restricting the height direction position and the vehicle inside and outside direction position with respect to the door trim 7 is provided, the lock knob holder 13 can be easily locked to the door trim 7 after the lock knob 3 is inserted into the lock knob holder 13. You can

In the vehicle door lock operating part according to the embodiment of the present invention, the interior surface 8 of the door trim 7 and the interior of the lock knob holder 13 after engagement are provided at the peripheral edge of the engagement hole 33. The step-shaped portion 29 that receives the end portion of the lock knob holder 13 so that the surfaces have the same surface height.
Since it is provided with the lock knob holder 13,
Even if it is configured by using, it can be implemented without impairing the aesthetics.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications and changes can be made based on the technical idea of the present invention. For example, as a modified example of the above-described embodiment, the lock knob 3 or the lock knob insertion hole 11 is shown in a round shape, but it is a square shape or another shape and has the contents of the present invention. If so, as a matter of course, it is possible to obtain the effect.

[0030]

As described above, the operating portion of the vehicle door lock according to the present invention has the door trim having a curved shape, the lock knob protruding from the interior surface of the door trim, and the lock knob insertion hole for guiding the lock knob. A door lock operating part of a vehicle having a lock knob holder fixed to the door trim, wherein the lock knob holder is inserted and fixed in a locking hole of the door trim, and the locking hole of the door trim is Since it is provided over at least a part of the curved surface shape, the mold of the door trim is not complicated, and the mold shape is simplified without impairing the aesthetics of the interior surface, thereby reducing the mold cost. Can be reduced. Further, the work of inserting the lock knob into the lock knob insertion hole can be facilitated, and the work efficiency can be improved.

[Brief description of drawings]

FIG. 1 is a side view of a door portion on an indoor side according to an embodiment of the present invention.

FIG. 2 is an external view of the lock knob holder according to the embodiment of the present invention, showing the lock knob holder from the back side.

FIG. 3 is an external view of the lock knob holder according to the embodiment of the present invention, as viewed from the direction of the curved surface shape portion.

FIG. 4 is an external view of the lock knob holder according to the embodiment of the present invention, which is a view of FIG. 2 seen from above.

5 is an external view of the lock knob holder according to the embodiment of the present invention, which is a view of FIG. 4 as viewed from the left side surface.

FIG. 6 is an explanatory view of a state where the lock knob holder according to the embodiment of the present invention is locked to a door trim.

FIG. 7 is an explanatory view of a state where the lock knob is inserted into the lock knob insertion hole according to the embodiment of the present invention, and is an enlarged cross-sectional view as seen from a cross-section BB direction of FIG. 6.

8 is an explanatory view of a state where the lock knob is inserted into the lock knob insertion hole according to the embodiment of the present invention, and is an enlarged cross-sectional view as viewed from a cross-section CC in FIG.

FIG. 9 is a perspective view showing a configuration of a conventional door portion.

FIG. 10 is an enlarged view of an operating portion of a vehicle door lock, which is a main portion of FIG. 9.

[Explanation of symbols]

1 door part 2 Door lock operation unit 2a Upper shoulder 3 lock knob 5 door inner panel 7 door trim 8 Door trim interior surface 9 door window glass 11 Lock knob insertion hole 12 inner diameter 13 Lock knob holder 14 Inside surface of lock knob holder 15 Armrest 17 door inside handle 18 Lock knob holder interior surface 19 Guide rib 20 Guide part 20a guide upper end 20b guide tip 21 Locking claw 23 Positioning pad 25 curved surface part 29 Stepped portion 31 curved shape 33 Locking hole

Continued front page    (72) Inventor Hiroyuki Masuda             300, Takatsuka-cho, Hamamatsu City, Shizuoka Prefecture Suzuki shares             In the company (72) Inventor Naoki Tanaka             300, Takatsuka-cho, Hamamatsu City, Shizuoka Prefecture Suzuki shares             In the company

Claims (6)

[Claims] 1. A door lock for a vehicle having a door trim having a curved shape, a lock knob protruding from an interior surface of the door trim, a lock knob insertion hole for guiding the lock knob, and a lock knob holder fixed to the door trim. A door lock operating part of a vehicle, which is an operating part, wherein the lock knob holder is inserted and fixed in a locking hole of the door trim, and the locking hole is provided over at least a part of a curved shape of the door trim. . 2. A plate-shaped guide rib for guiding the lock knob is provided on the back side of the interior surface of the lock knob holder, and the guide rib is arranged radially around the lock knob insertion hole, and the tip of the lock knob is provided. The door lock operation part for a vehicle according to claim 1, wherein the part has a curved surface shape so as not to be caught by the guide rib. 3. The door lock operating part for a vehicle according to claim 2, wherein the guide ribs are provided at least at three or more locations at equal angular intervals in the circumferential direction of the lock knob insertion hole. 4. The guide rib is provided so as to project inward from the lock knob insertion hole, and the inner side surface of the guide rib is inclined or inclined so that the inner diameter formed by the inner side surface of the guide rib becomes larger as it goes downward. The door lock operation part for a vehicle according to claim 2 or 3, wherein the door lock operation part is curved. 5. A height direction position and a vehicle inside / outside position of the lock knob holder with respect to the door trim are regulated by sandwiching a periphery of the locking hole of the door trim at an end portion of the lock knob holder on the vehicle inner side. The door lock operation part of the vehicle according to claim 1, wherein a pad part is provided. 6. A step for receiving an end portion of the lock knob holder at a peripheral edge portion of the locking hole so that an inner surface of the door trim after locking and an inner surface of the lock knob holder have the same surface height. The door lock operation part for a vehicle according to claim 1, wherein a shape part is provided.