JP3890492B2 - Key cylinder mounting device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a key cylinder mounting device mounted on an automobile door or the like.
[0002]
[Prior art]
A key cylinder provided on an outer handle of an automobile door is generally provided with a security device in order to lock and unlock the door by a key operation.
[0003]
Specifically, the key cylinder is attached to the outer handle using a snap ring, and a protective member as a security equipment is separately attached.
[0004]
The protective member is configured to prevent the key lever that interlocks the key cylinder and the door lock mechanism from being illegally operated from the outside of the door to unlock the door, and is fixed to the door.
[0005]
[Problems to be solved by the invention]
As described above, in the conventional key cylinder, since the protection member is installed on the door separately from the key cylinder, the key cylinder and the protection member are attached separately. This is a laborious task for cylinder installation.
[0006]
In addition, since the key cylinder is mounted using a snap ring or the like, there is a problem that a mounting part must be prepared as a separate member, and further, security equipment must be provided on the vehicle side.
[0007]
SUMMARY OF THE INVENTION In view of the above circumstances, an object of the present invention is to provide a key cylinder mounting device that can easily mount a protective member and a key cylinder without the need for mounting parts.
[0008]
[Means for Solving the Problems]
To achieve the above object, the present invention, as the first invention, the outer peripheral surface of the key cylinder provided with a convex portion, a protective plate body covering the key lever of the door lock Organization and communicates the dynamic key cylinder The protective plate body is provided with a mounting piece portion having a locking portion to be locked to the convex portion of the key cylinder around the through hole for allowing the key cylinder to pass therethrough. On the inner peripheral surface of the cylindrical mounting base to which the cylinder is inserted and mounted, the key cylinder is rotated in the circumferential direction to fit the convex section, and the protection is provided at the rotation position of the key cylinder. An engagement groove that allows the mounting piece of the plate body to be advanced is provided, the key cylinder inserted into the mounting base is rotated, the convex portion is fitted to the concave portion, and then the protective plate body is mounted. a piece part is advanced into the engaging groove engaging the engaging portion with the convex portion So it allows to propose a mounting device of the key cylinder, characterized in that the arrangement for mounting the cylinder with the protective plate body mounting substrate.
[0009]
As the second invention, provided in the first invention, provided with a groove to Au motor outer peripheral surface of the key cylinder, the transmural insertion hole peripheral portion of the protective plate member clicks pawl which projects into the groove portion, protective A key cylinder mounting device is proposed, in which the plate body is positioned and mounted in advance with respect to the key cylinder.
[0010]
Further, as a third aspect, in the second invention, the key cylinder, characterized in that it has a configuration which plunge the Au motor peripheral surface click pawl of the protective plate body drain hole provided in the key cylinder A mounting device is proposed.
[0011]
[Action]
After the key cylinder is inserted into the through hole of the protective plate, the key cylinder is inserted into the mounting base, so that the mounting piece of the protective plate also enters the mounting base.
[0012]
In this state, the key cylinder is rotated, and the convex portion is fitted to the concave portion of the mounting base.
Further, after the mounting piece portion of the protective plate is aligned with the engaging groove of the mounting base, the protective plate is pushed.
[0013]
Thus, the mount piece of the protective plate body while advancing the engagement groove of the mounting base, retaining portion of the mounting piece portion is engaged by the convex portion of the key cylinder.
[0014]
As a result, the convex portion of the key cylinder fitted to the concave portion of the mounting base comes into contact with the mounting piece portion of the protective plate and is prevented from coming off, thereby preventing reverse rotation of the key cylinder. -The cylinder is securely mounted.
[0015]
In addition, since the locking portion of the mounting piece is locked by the convex portion of the key cylinder to prevent the protective plate body from being detached, the protective plate body is attached to the mounting base together with the key cylinder.
[0016]
Furthermore, according to the second invention in which the click claw of the protection plate is inserted into the groove on the outer peripheral surface of the key cylinder, the rotational angle position of the protection plate relative to the key cylinder is determined before the key cylinder is inserted into the mounting base. The protective plate can be temporarily fixed to the key cylinder.
[0017]
In the key cylinder mounting apparatus configured as described above, the mounting piece of the protection plate is opposed to the engaging groove of the mounting base by fitting the convex part of the key cylinder to the concave part of the mounting base. Therefore, if the protective plate is pushed at the pivot position of the key cylinder with the convex part fitted to the concave part, the locking part of the mounting piece will be the convex part of the key cylinder. Lock to.
[0018]
In addition, as in the third aspect of the invention, the key cylinder and the protective plate body can be attached in the same manner as in the second aspect of the invention even if the click claw of the protective plate body is inserted into the drain hole of the key cylinder. Can do.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is an exploded perspective view showing a key cylinder mounting device mounted on an automobile door, wherein 10 is a key cylinder, 20 is a protective plate, and 30 is a mounting base.
[0020]
The key cylinder 10 is provided with a cylinder in a cylinder outer, and has a locking / unlocking mechanism with a known configuration that locks and unlocks by rotating the cylinder with the key, and also according to the rotation of the key cylinder. A key lever 11 that swivels is provided.
The key lever-11 is connected to a door lock mechanism for locking and unlocking the door by a key rod.
[0021]
Further, two convex portions 12 and 13 are formed symmetrically on the outer peripheral surface of the cylinder outer which is the front side of the key cylinder 10, and the mounting base 30 is formed using the convex portions 12 and 13. It is designed to be installed.
[0022]
The protective plate 20 has a configuration in which a through hole 22 is formed in the center of a disc 21 having a notch and a substantially semicircular flange 23 is provided along the outer periphery of the disc 21.
[0023]
The through hole 22 of the protective plate 20 is formed to have a size substantially the same as the outer diameter of the key cylinder 10, and the key cylinder is located at a symmetrical position of the through hole 22. Concave grooves 24 and 25 for inserting ten convex portions 12 and 13 are formed.
In addition, the convex part 26 provided in the hole edge of the penetration hole 22 is a click nail | claw which penetrates into the drain hole 14 (refer FIG. 3) of the key cylinder 10, This is formed so that it may be thin and elastic. When the key cylinder 10 is inserted into the through hole 22, the key cylinder 10 is bent once and then enters the drain hole 14.
[0024]
On the other hand, the protection plate body 20 is provided with mounting pieces 27 and 28 formed upright from the disk 21.
As shown in FIG. 2, the attachment pieces 27 and 28 are formed symmetrically along the hole edge of the insertion hole 22, and locking claws 27 a and 28 a are provided at the tip portions thereof.
[0025]
The mounting base 30 has a configuration in which a cylindrical tubular body 32 is integrally formed on a plate portion 31 that is fixedly attached to the outer handle.
The cylindrical body 32 of the mounting base 30 is divided into a small diameter portion 32 a whose inner surface is matched to the outer shape of the key cylinder 10, and a large diameter portion 32 b provided as a swivel region of the convex portions 12 and 13 of the key cylinder 10. It is formed.
[0026]
In addition, recessed portions 33 and 34 into which the protruding portions 12 and 13 of the key cylinder 10 are fitted are symmetrically formed in the inner portion of the small diameter portion 32a of the cylindrical body 32.
The concave portions 33 and 34 are formed by cutting in the circumferential direction of the cylindrical body 32. When the convex portions 12 and 13 of the key cylinder 10 are fitted, these convex portions 12 and 13 are formed. Is a concave length that protrudes slightly.
[0027]
Furthermore, engagement grooves 35 and 36 (engagement grooves 36 are not shown) are provided on the inner surface of the enlarged diameter portion 32b of the cylindrical body 32 to advance the locking claws 27a and 28a of the protection plate body 20.
[0028]
The engaging grooves 35 and 36 are concave grooves formed in the cylindrical axis direction by convex surface portions 37a and 37b (the convex surface portion 37b is not shown) provided on the inner surface of the enlarged diameter portion 32b and the small diameter portion 32a. ing.
In addition, the hole 38 provided in the plate part 31 is a key insertion hole.
[0029]
Next, assembly of the key cylinder 10, the protection plate 20, and the mounting base 30 configured as described above will be described with reference to FIGS. 3 to 5.
3 to 5 are explanatory views showing the assembling process, but the convex portion 12 of the key cylinder 10, the locking claw 27a of the protective plate 20, the concave portion 33 of the mounting base 30, and the engagement. The relationship of the grooves 35 is shown.
[0030]
First, the key cylinder 10 is inserted into the through hole 22 of the protection plate 20.
At this time, the convex portions 12 and 13 of the key cylinder 10 are inserted through the concave grooves 24 and 25 of the protective plate 20 and the convex portion 26 of the protective plate 20 is pushed and bent by the key cylinder 10. The
[0031]
Thereafter, the key cylinder 10 is rotated so that the drain hole 14 of the key cylinder 10 is aligned with the convex portion 26 of the protective plate 20.
As a result, the protrusion 26 is restored by an elastic action and enters the drain hole 14, so that the protection plate 20 is temporarily fixed to the key cylinder 10 so as not to rotate.
[0032]
When the protective plate 20 is attached to the key cylinder 10 as described above, the convex portions 12 and 13 of the key cylinder 10 are connected to the locking claws 27a and 27a of the protective plate 20, as shown in FIG. It will be in the state contact | abutted to the oblique part of 28a.
[0033]
Subsequently, the key cylinder 10 is inserted into the cylindrical body 32 of the mounting base 30, the convex portions 12 and 13 are brought into contact with the convex surface portions 37 a and 37 b of the cylindrical body 32, and the protection plate body 20 is attached. The pieces 27 and 28 are caused to enter the cylindrical body 32.
[0034]
When the key cylinder 10 is rotated counterclockwise in this state, the convex portions 12 and 13 are fitted into the concave portions 33 and 34 of the cylindrical body 32 as shown in FIG. Is rotated together with the key cylinder 10, so that the locking claws 27 a and 28 a are rotated while being in contact with the convex portions 12 and 13, and the locking claws 27 a and 28 a are engaged with the cylindrical body 32. Move to a position facing the mating grooves 35 and 36.
[0035]
Subsequently, the protection plate 20 is pushed toward the mounting base 30, and the locking claws 27 a and 28 a are advanced into the engagement grooves 35 and 36 of the cylindrical body 32.
When the locking claws 27a and 28a advance into the engaging grooves 35 and 36 in this way, the locking claws 27a and 28a get over the convex portions 12 and 13 of the key cylinder 10, so as shown in FIG. The locking claws 27 a and 28 a are locked by the convex portions 12 and 13 of the key cylinder 10.
[0036]
In the key cylinder 10 assembled as described above, the convex portions 12 and 13 are fitted into the concave portions 33 and 34 of the cylindrical body 32, and the protrusion of the convex portions 12 and 13 is the protection plate. Since it is blocked by the mounting pieces 27 and 28 of the body 20, it can be securely mounted to the mounting base 30.
[0037]
Further, the protection plate 20 is locked by the locking claws 27 a and 28 a by the convex portions 12 and 13 of the key cylinder 10, and the disk 21 is pressed against the end surface of the cylindrical body 32. Therefore, it can be securely attached to the mounting base 30 together with the key cylinder 10.
[0038]
FIG. 6 is a cross-sectional view showing a state in which the key cylinder 10 and the protection plate body 20 are attached to the attachment base 30. The key cylinder 10 and the protection plate body 20 attached in this way are not mechanically backlashed. Almost does not occur.
[0039]
Although one embodiment of the present invention has been described above, the convex portion 26 for positioning the protective plate 20 is not necessarily required for implementing the present invention.
Further, the cylindrical body 32 of the mounting base 30 can be formed integrally with the outer handle, and the outer handle can be used as the mounting base, and the key cylinder without the drain hole 14 is the same as the drain hole 14. A groove portion is formed, and the convex portion 26 of the protective plate 20 is inserted into the groove portion.
[0040]
Further, the number of convex portions provided on the key cylinder 10, the number of concave grooves and locking claws of the protective plate 20 corresponding thereto, and the number of concave portions and engaging grooves of the mounting base 30 are as required. Can be increased or decreased.
Further, the present invention is not limited to a key cylinder mounting device for an automobile door, and can be similarly applied to a key cylinder such as a building.
[0041]
【The invention's effect】
As described above, according to the present invention, the key cylinder can be securely mounted by simply inserting the key cylinder into the mounting member and rotating it, so it is necessary to prepare a separate mounting part for the key cylinder. In addition, the key cylinder mounting device can be easily mounted with one touch.
[0042]
In addition, since the protective plate can be attached together by attaching the key cylinder, there is no need to provide a key cylinder crime prevention device on the vehicle side even when the vehicle door is equipped. It becomes a key cylinder mounting device that makes it very easy to mount the plate.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a key cylinder, a protection plate, and a mounting base, showing an embodiment of the present invention.
FIG. 2 is a partially enlarged perspective view of the protection plate body.
FIG. 3 is an explanatory view showing an assembling process of a key cylinder and a protection plate.
FIG. 4 is an explanatory view similar to FIG. 3 showing an assembly process.
FIG. 5 is an explanatory view similar to FIG. 3 showing an assembly process.
FIG. 6 is a cross-sectional view showing a state in which a key cylinder and a protection plate are assembled to a mounting base.
[Explanation of symbols]
10 Key cylinder 11 Key lever
12, 13 Convex part 14 Drain hole 20 Guard plate body 22 Insertion hole 24, 25 Concave groove 26 Convex part 27, 28 Attachment piece part 27a, 28a Locking claw 30 Attachment base 32 Cylindrical body 33, 34 Concave form Part 35, 36 engagement groove

Claims (3)

Transmural the outer peripheral surface of the key cylinder provided with a convex portion, provided with a protective plate body covering the key lever of the key cylinder to the door lock Organization and communicating motion, and, in the protective plate body, which inserted through the key cylinder At the periphery of the insertion hole, there is provided an attachment piece portion having an engaging portion for engaging with the convex portion of the key cylinder, while on the inner peripheral surface of the cylindrical attachment base to which the key cylinder is inserted and attached, A concave portion for fitting the convex portion by rotating the key cylinder in the circumferential direction, and an engagement groove for allowing the mounting piece portion of the protection plate body to advance at the rotational position of the key cylinder; after the convex portion by rotating the inserted key cylinder to the mounting substrate was fitted to the concave portion, the convex and the engaging portion of the mounting piece portion of the protective plate member is advanced into the engaging groove A structure in which the cylinder and the protection plate are attached to the mounting board by engaging the shape part. Mounting device of the key cylinder, characterized in that the the. Provided with a groove to Au motor outer peripheral surface of the key cylinder, the transmural insertion hole peripheral portion of the protective plate member provided with a click pawl which projects into the groove portion, and configured for mounting to prepositioned protective plate body on the key cylinder The key cylinder mounting device according to claim 1, wherein the key cylinder mounting device is provided. Mounting device of the key cylinder according to claim 2, characterized that it has a configuration in which plunge the Au motor peripheral surface click pawl of the protective plate body drain hole provided in the key cylinder.

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