JPH09165942A - Inside-door handle device for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the careless rotation of a handle without increasing the number of parts. SOLUTION: This door handle device has a base 6 fixed onto the inner panel 2 of a door for an automobile, an escutcheon 20, to which an indented section 21 is formed and which is engaged with the base 6, and a handle 5 rotatably installed to the base 6 and operated and connected to a door locking device. The peripheral section 22 of the escutcheon 20 is arranged into an opening section 19 formed to a door trim 3. A folded section 23 formed to the peripheral section 22 of the escutcheon 20 is abutted against the internal surface 18 of the door trim 3. A brittle section 24 having a low mechanical strength is shaped to the connecting section of the peripheral section 22 of the escutcheon 20 and the folded section 23. The brittle section 24 is composed of a notched section 26 forming a thin section 25 or an intermittently formed through-hole.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inside door handle device for an automobile, and more particularly to an inside door handle device which prevents the handle from rotating when the door of the automobile receives a strong partial pressure from the outside.

[0002]

2. Description of the Related Art In a conventional inside door handle device for an automobile shown in FIG. 9, a base 6 is fixed to an inner panel 2 of an automobile door by a claw portion 10 and a screw 9 formed integrally with the base 6. An escutcheon 40 having a recess 21 is locked to the base 6. The handle 5 arranged in the recess 21 of the escutcheon 40 is rotatably attached to the base 6 by the shaft 8, and
It is operatively connected to a door lock device (not shown) via the rod 7. Further, a folded-back portion 23 is formed on the peripheral edge portion 22 of the escutcheon 40, and the folded-back portion 23 contacts the inner surface 18 of the door trim 3.

In the apparatus shown in FIG. 9, the handle 5 may rotate when the door receives a strong pressing force from the outside. Specifically, when a pressing force indicated by an arrow F in FIG. 9 is applied to the outer panel 1 of the door, the door trim 3 is pressed inward in the vehicle through the inner panel 2.
Since the folded-back portion 23 of the escutcheon 40 is in contact with the inner surface 18 of the door trim 3, the entire escutcheon 40 is pushed and moved to the position shown by the chain double-dashed line in the figure. At this time, the handle 5 is pushed by the recess 21 of the escutcheon 40.

[0004]

On the other hand, an inside door handle device as shown in FIG. 10 has been proposed. The inside door handle device includes an escutcheon body 41 and an escutcheon frame 42. A plurality of engaging protrusions 43 are formed on the peripheral edge of the escutcheon main body 41, and a protrusion having an engaging hole 44 on the peripheral edge of the escutcheon frame 42. A plurality of parts 45 are provided. As shown in FIG. 11, the escutcheon of the apparatus of FIG. 10 is assembled by elastically engaging the locking projections 43 of the escutcheon body 41 with the locking holes 44 of the projections 45 of the escutcheon frame 42. Therefore, when the door trim 3 is pushed inward by the pressing force of the arrow F shown in FIG. 12, the escutcheon frame 42 comes off from the escutcheon body 41.
The escutcheon body 41 does not press the handle 5. However, since the inside door handle device of FIG. 10 comprises the escutcheon with two parts, there is a problem that the molding process and the assembling process of the parts increase and the cost increases.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an inside door handle device for an automobile, which can prevent the handle from rotating unintentionally without increasing the number of parts.

[0006]

An inside door handle device for an automobile according to the present invention comprises a base (6) fixed to an inner panel (2) of an automobile door, and a base (6) formed with a recess (21). An escutcheon (20) locked to the base plate (6) and a handle (5) rotatably attached to the base (6) and operatively connected to the door lock device. The peripheral portion (22) of the escutcheon (20) is arranged in the opening (19) formed in the door trim (3). The folded-back portion (23) formed on the peripheral edge portion (22) of the escutcheon (20) contacts the inner surface (18) of the door trim (3). A fragile part (2) having low mechanical strength is provided at a connection part between the peripheral part (22) of the escutcheon (20) and the folded part (23).
4) is formed. The fragile portion (24) is a cutout portion (26) forming a thin portion (25) or a through hole (27) formed intermittently.
It consists of.

By providing the fragile portion (24) at the connecting portion between the peripheral portion (22) of the escutcheon (20) and the folded-back portion (23), when the door receives a partial strong pressing force from the outside, Since the fragile portion (24) is broken and the peripheral portion (22) of the escutcheon (20) and the folded-back portion (23) are separated, only the folded-back portion (23) is moved in the vehicle inward direction together with the door trim (3). Inadvertent rotation of the handle (5) can be prevented.

With the above construction, in the present invention, the safety of the occupant of the automobile can be ensured, and at the same time, the escutcheon frame is not required, so that the cost of the parts and the molding die can be reduced and the number of assembling steps can be prevented from increasing. It is possible to reduce.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of an inside door handle device for an automobile according to the present invention will be described below with reference to FIGS. 1 to 8, parts that are the same as the parts shown in FIG. 9 are given the same reference numerals, and descriptions thereof will be omitted.

The inside door handle device for an automobile shown in FIG. 1 is made of a resin having a base 6 fixed to the inner panel 2 of the automobile door, a recess 21 formed therein, and an edge of the base 6 engaged with the base 6. Escussion 20 and. As shown in FIG. 2, the recessed portion 2 of the escutcheon 20.
A lock knob 4 and a handle 5 are arranged inside 1 and are rotatably attached to a base 6 by a shaft 8. As shown in FIG. 4, the peripheral edge portion 22 of the escutcheon 20 is arranged in the opening portion 19 formed in the door trim 3. The folded-back portion 23 formed on the peripheral edge portion 22 of the escutcheon 20 contacts the inner surface 18 of the door trim 3.

In the present invention, a weak portion 24 having a low mechanical strength is formed at the connecting portion between the peripheral portion 22 of the escutcheon 20 and the folded portion 23. Escussion 2 shown in FIG.
At 0, the fragile portion 24 is a notch 26 that forms a thin portion 25.
It consists of. The fragile portion 24 does not break during normal operation including the assembly process of the inside door handle device, and the fragile portion 24 has a force exceeding a predetermined magnitude and is not broken by the base 6 and the escutcheon 2.
The thickness of the thin portion 25, the shape of the notch portion 26, etc. are set so that the material will break only when a force weaker than the locking force with respect to 0 is applied.

As shown in FIG. 3, when the outer panel 1 of the automobile door receives a strong pressing force indicated by an arrow F from the outside, the door trim 3 is pushed inward through the inner panel 2. At this time, the folded-back portion 23 of the escutcheon 20 is strongly pressed by the inner surface 18 of the door trim 3, while the edge portion of the escutcheon 20 (not shown) is locked to the base 6 fixed to the inner panel 2, so Strong mechanical stress is applied. As a result, the fragile portion 24 having low mechanical strength is broken, the peripheral portion 22 of the escutcheon 20 and the folded-back portion 23 are separated, and only the folded-back portion 23 is moved in the vehicle inward direction together with the door trim 3. The part 21 remains in the normal position and does not come into contact with the handle 5.

As described above, according to the present invention, the safety of the occupant of the automobile can be ensured, and at the same time, the escutcheon frame such as the door handle device of FIG. 10 is not required, so that the cost of the parts and the molding die can be reduced. It is possible to prevent an increase in assembly man-hours and reduce costs.

The embodiment of the present invention can be variously modified. For example, as shown in FIG.
It is possible to form the fragile portion 24 by the through holes 27 which are formed in a perforated shape intermittently. Further, the fragile portion 24 constituted by the cutout portion 26 can also be implemented in various shapes as shown in FIGS. The notch 26 can be formed continuously or intermittently around the entire circumference of the escutcheon 20.

[0015]

As described above, according to the present invention, it is possible to reduce the cost of the parts and the molding die, prevent the increase of the assembly man-hour, and reduce the cost without the careless rotation of the handle. Become.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a mounted state of an inside door handle device for a vehicle according to the present invention.

FIG. 2 is a front view of the apparatus of FIG.

FIG. 3 is a cross-sectional view showing a state where the escutcheon of the apparatus of FIG. 1 is broken.

FIG. 4 is a partially enlarged sectional view showing a first embodiment of an escutcheon.

FIG. 5 is a partially enlarged sectional view showing a second embodiment of the escutcheon.

FIG. 6 is a partially enlarged sectional view showing a third embodiment of the escutcheon.

FIG. 7 is a partially enlarged sectional view showing a fourth embodiment of the escutcheon.

FIG. 8 is a partially enlarged sectional view showing a fifth embodiment of the escutcheon.

FIG. 9 is a cross-sectional view showing a conventional inside door handle device for an automobile.

FIG. 10 is a sectional view showing a state in which another conventional automobile inside door handle device is attached.

11 is a partially enlarged cross-sectional view showing the escutcheon of the apparatus of FIG.

12 is a cross-sectional view showing a state where the escutcheon of the apparatus of FIG. 10 is separated.

[Explanation of symbols]

2. . Inner panel, 3. . Door trim, 5. . Handle, 9. . Opening, 16. . Base, 1
8. . Inside, 20. . Escussion, 21. . Recessed portion, 22. . Peripheral portion, 23. . Folded part, 2
4. . Fragile part, 25. . Thin portion, 26. . Notch,
27. . Through hole

Claims (3)

[Claims] 1. A base (6) fixed to an inner panel (2) of a vehicle door, an escutcheon (20) having a recess (21) formed therein and locked to the base (6), and a base (6). An inside door handle device for an automobile, comprising a handle (5) rotatably mounted to 6) and operably connected to a door lock device, wherein a peripheral portion (22) of an escutcheon (20) is formed in a door trim (3). The folded portion (23) arranged in the opening (19) formed in the peripheral portion (22) of the escutcheon (20) abuts the inner surface (18) of the door trim (3), and thus the An inside door handle device for an automobile, characterized in that a weak portion (24) having low mechanical strength is formed at a connecting portion between the peripheral portion (22) and the folded portion (23). 2. The inside door handle device for an automobile according to claim 1, wherein the fragile portion (24) is constituted by a cutout portion (26) forming a thin portion (25). 3. The inside door handle device for an automobile according to claim 1, wherein the fragile portion (24) is constituted by a through hole (27) formed intermittently.