JPH06200665A - Device for attaching single key cylinder to column cover - Google Patents

Abstract

PURPOSE:To half the number of kinds of forming dies for molding column covers by a method wherein an attachment hole for attaching a key cylinder with a button is formed to the column cover and the said attachment hole is made usable for a key cylinder without a button with an escutcheon equipped with a hole for attaching a single key cylinder fixed and with fixing devices applied from both sides to fix the single key cylinder. CONSTITUTION:An attachment hole 10a for attaching a key cylinder with a button is formed to a column cover 10 that is mounted in front of a steering wheel of a car. In case of attaching a single key cylinder 11 without a button to the attachment hole 10a, an escutcheon 15 is fixed to the attachment hole 10a, then the key cylinder 11 is inserted into an attachment hole of the escutcheon, and is fixed with a ring-like spacer 12 from one end and with a flanged positioning plate 14 and a ring-like finisher 13 from the other end. Then, the key cylinder attachment hole 10a provided to the column cover 10 is made usable for both the key cylinder with the button and the key cylinder without the button. Thereby, the number of kinds of forming dies for molding can be reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a single key cylinder mounting device for sharing a mounting hole for a button key cylinder formed in a column cover with a single key cylinder.

[0002]

2. Description of the Related Art A key cylinder of this type is mounted on a column cover mounted in front of a steering wheel of a vehicle. At present, as the types of key cylinders that are generally used, there are a key cylinder with a button having a push button attached to the side of the key cylinder, and a single key cylinder having only the key cylinder. At the mounting part of the key cylinder with a button, the key insertion port of the key cylinder and the operation head of the push button are exposed on the surface of the column cover, and at the mounting part of a single key cylinder, only the key insertion port of the key cylinder. Appears independently on the surface of the column cover.

FIGS. 5 and 6 show the mounting state of the single key cylinder 1 described above, and the column cover 2 is formed with only a single circular key cylinder mounting hole 2a. The single key cylinder 1 is fixed to the key cylinder mounting hole 2a of the column cover 2 via the ring-shaped spacer 3, the position plate 4 and the finisher 5, respectively.

On the other hand, FIGS. 7 and 8 show how the key cylinder with button 7 is attached to the column cover 9. As shown in these figures, the steering shaft 6
The key cylinder with button 7 fixed to the column cover 9 is attached to the column cover 9 through the escutcheon 8 having the fitting holes 8a and 8b of the key cylinder body 7a and the push button 7b. The shape of the escutcheon 8 is substantially the same as the vertical cross-sectional shape of the egg.

[0005]

As described above, in the conventional key cylinder mounting device, it is necessary to form two types of column covers, one for mounting a key cylinder with a button and one for mounting a single key cylinder. Therefore, not only two types of molding dies have to be prepared, but also in terms of production management, complexity is increased, productivity is lowered, and cost is increased.

The present invention has been made in order to solve the above problems, and the purpose thereof is to allow a column cover for mounting a key cylinder with a button having the above-mentioned structure to be commonly used for mounting a single key cylinder. Moreover, it is an object of the present invention to provide a mounting device capable of securely mounting a single key cylinder.

[0007]

In order to achieve the above object, the present invention is a device for mounting a single key cylinder in a mounting hole for a key cylinder with a button formed in a column cover. A ring-shaped spacer having a stepped portion externally fitted to the tip end portion of the key cylinder and having a stepped portion fitted to the stepped portion formed in the cylinder, and a ring-shaped finisher having a flange and screwed into the tip end portion of the single key cylinder. And a position plate with a flange, which is sandwiched by the ring-shaped spacer and the finisher, and a position plate fitting hole into which the main body of the position plate with the flange fits are formed, and is fitted into the mounting hole for the key cylinder with a button. And an escutcheon having an engaging piece having a wedge-shaped rib on the back surface thereof. During cylinder mounting, the end surface portion following the position plate fitting hole of the escutcheon is,
A single key cylinder mounting device for a column cover is characterized in that it is sandwiched between the ring-shaped spacer and the flange of the flanged position plate.

[0008]

In order to mount the single key cylinder to the column cover having the button key cylinder mounting hole by the single key cylinder mounting device of the present invention, first, the fitting portion of the escutcheon is attached to the key cylinder from the surface side of the column cover. The escutcheon engaging piece is engaged with the key mounting hole and is attached to the peripheral edge of the inner wall of the key cylinder mounting hole. Next, insert the tip of the single key cylinder on the key insertion side into the ring-shaped spacer, and insert the stepped part of the ring-shaped spacer and the stepped part of the single key cylinder into the position plate fitting hole. Then, the end surface portion of the circumferential groove formed in the ring-shaped spacer that continues to the outer peripheral side is brought into contact with the end surface that continues to the position plate fitting hole. Next, the main body of the flanged position plate is set from the front surface side of the column cover so as to fit into the circumferential groove of the ring-shaped spacer. At this time, the flange of the position plate with flange abuts the periphery of the position plate fitting hole of the escutcheon,
The escutcheon is sandwiched between the flange of the flanged position plate and the end surface portion continuing to the outer periphery of the ring-shaped spacer at the end surface portion continuing to the position plate fitting hole.

Finally, when the ring-shaped finisher is screwed onto the tip of the single key cylinder and tightened, the attachment of the single key cylinder to the column cover is completed. When the ring-shaped finisher is screwed into the single key cylinder and tightened, the single key cylinder is pulled toward the finisher side through the step, and the wedge-shaped rib of the escutcheon is pushed by the outer peripheral surface of the ring-shaped spacer and the engaging claw is attached. Securely engages the peripheral edge of the mounting hole of the column cover, and at the same time firmly clamps the position plate body with flange between the ring-shaped spacer and the ring-shaped finisher, and continues to the outer periphery of the flange of the position plate with flange and the ring-shaped spacer. As a result of strongly sandwiching the escutcheon with the end face portion, the entire attachment becomes extremely firm and cannot be easily removed.

[0010]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 4 show a mounting device of a single key cylinder to a column cover for mounting a key cylinder with a button, which is a typical embodiment of the present invention.

The single key cylinder mounting device of the present invention is a device for mounting the single key cylinder 11 in the mounting hole 10a for a key cylinder with a button formed in the column cover 10 as described above. The main constituent members are externally fitted to the tip of the single key cylinder 11,
Fitting recess 12 fitted into the fitting projection 11a formed on
A ring-shaped spacer 12 having a and a flange 13a, and a ring-shaped finisher 13 screwed to the tip of the single key cylinder 11, and a flanged position plate sandwiched by the ring-shaped spacer 12 and the finisher 13. 14 and a position plate fitting hole 15a for fitting the main body of the flanged position plate 14 are formed, and are fitted into the mounting hole 10a for the key cylinder with button and are fitted to the periphery of the hole 10a. Attachment piece 1 having attachment claw 15b and wedge-shaped rib 15c on its back surface
And an escutcheon 15 having 5d, the position plate fitting hole 1 when the key cylinder is attached.
The peripheral portion of 5a is sandwiched between the ring-shaped spacer 12 and the flange 14b of the flanged position plate 14.

Explaining the above construction in more detail, the column cover 10 is a molded product made of synthetic resin, and the key cylinder mounting portion has a mounting hole 1 for a key cylinder with a button.
0a is formed. Since the attachment of the key cylinder main body and the push button is the same as the attachment hole 10a, the attachment hole 10a has a shape similar to the cross-sectional shape when the egg is cut vertically as in the conventional case. It does not form a perfect circle.

The structure of the single key cylinder 11 is no different from that of the conventional one, and the outer peripheral surface of the tip of the mounting portion for the column cover 10 is threaded, and the fitting projection 11a extends from the middle of the mounting portion. It has a large diameter through.
The structure of the ring-shaped spacer 12 is not different from the conventional one, and the overall shape is a ring shape that fits into the tip mounting portion of the single key cylinder 11, and the fitting recess is formed on the circumference of the inner diameter surface. 12a is formed, and the fitting recess 12a and the fitting projection 11a of the single key cylinder 11 are fitted to each other. A circular groove 12b is formed on the surface of the ring-shaped spacer 12 on the side where the position plate with flange 14 is assembled.
Is formed, the thickness of the outer peripheral side peripheral edge of the circumferential groove 12b is made smaller than the thickness of the inner peripheral side peripheral edge. The ring-shaped finisher 13 is formed of a ring-shaped member that is screwed into the threaded portion of the tip of the single key cylinder 11, and the flange 1
3a. The key position is displayed on the surface of the flange portion of the flanged position plate 14 as usual.
When assembling the column cover 10 to the main body 14a
Is fitted in the circumferential groove 12b of the ring-shaped spacer 12, and the ring-shaped finisher 13 is screwed and tightened on the tip screw portion of the single key cylinder 11, so that the flange 13a of the ring-shaped finisher 13 and the ring The flanged position plate 14 is sandwiched by the circumferential groove 12b of the spacer 12.

As shown in FIG. 4, the escutcheon 15 has the same appearance as the longitudinal cross-section of an egg, which is the same as the escutcheon of the conventional key cylinder with a button, except that the push button insertion hole is not formed. There is. The escutcheon 15 of the present invention is different from that of the conventional escutcheon 15. The escutcheon 15 is fitted to a key cylinder mounting hole 10a which is slightly smaller than the outer shape of the escutcheon 15 and is attached to the peripheral edge of the hole 10a. With the claw 15b,
An engaging piece 15d having a wedge-shaped rib 15c on its back surface,
It is provided on the fitting portion of the mounting hole 10a.

In order to mount the single key cylinder on the column cover 10 using the single key cylinder mounting device of the present invention having the above-described structure, first, the escutcheon 15 is used.
The fitting portion is fitted into the key cylinder mounting hole 10a from the front surface side of the column cover 10, and the engaging piece 15d of the escutcheon 15 is engaged with the inner peripheral edge of the key cylinder mounting hole 10a. Then, the tip of the single key cylinder 11 on the key insertion side is inserted into the ring-shaped spacer 12, and the fitting projection 12a of the single key cylinder 11 is fitted into the fitting recess 12a of the ring-shaped spacer 12. The ring-shaped spacer 12 is inserted through the position plate fitting hole 15a.
The end surface continuing to the outer circumference of the circumferential groove 12b formed on the surface opposite to the above is brought into contact with the end surface part continuing to the position plate fitting hole 15a. Next, the main body 14a of the flanged position plate 14 is set from the front surface side of the column cover 10 so as to be fitted into the circumferential groove 12b of the ring-shaped spacer 12. At this time, the flange 14b of the flanged position plate 14 comes into contact with the end surface of the escutcheon 15 continuing to the position plate fitting hole 15a, and the escutcheon 15 at the peripheral edge of the position plate fitting hole 15a.
Is the flange 14b of the position plate 14 with flange
And the end face continuing to the outer periphery of the circumferential groove 12b of the ring-shaped spacer 12 are sandwiched.

Finally, the ring-shaped finisher 13 is screwed onto the tip of the single key cylinder 11 and tightened to complete the attachment of the single key cylinder 11 to the column cover 10. When the ring-shaped finisher 13 is screwed into the single key cylinder 11 and tightened, the single key cylinder 11 is fitted with the fitting protrusion 11 as is apparent from FIG.
The main body 14a of the flanged position plate 14 is firmly held by the ring-shaped spacer 12 and the ring-shaped finisher 13 while being pulled toward the finisher 13 side via the a and the fitting recess 12a, and at the same time, the outer peripheral surface of the ring-shaped spacer 12 is The engaging piece 15d via the wedge-shaped rib 15c formed on the escutcheon 15.
It is pressed against the inner surface of the mounting hole 10a to secure the engagement of the engagement claw 15b of the engagement piece 15d to the column cover 10. At the same time, the escutcheon 15 is strongly sandwiched between the flange 14b of the flanged position plate 14 and the outer peripheral edge of the ring-shaped spacer 12. As a result, the entire attachment becomes extremely firm and does not come off easily. .

[0017]

As is apparent from the above description, according to the single key cylinder mounting device of the present invention, the column cover for the key cylinder with button can also be used as the column cover for the single key cylinder. As a result, the number of types of molding dies for the column cover is halved, and product management becomes easier. Moreover, according to the single key cylinder attachment device of the present invention, once the single key cylinder is attached to the column cover, it cannot be easily removed.

[Brief description of drawings]

FIG. 1 is an exploded perspective view when a single key cylinder that is a typical embodiment of the present invention is attached.

FIG. 2 is a perspective view after the key cylinder is assembled by the single key cylinder mounting device.

3 is a cross-sectional view taken along the line AA in FIG.

FIG. 4 is a perspective view showing an entire column cover when the key cylinder is completely assembled by the single key cylinder mounting device.

FIG. 5 is an exploded perspective view when a conventional single key cylinder is attached.

6 is a sectional view taken along the line BB in FIG.

FIG. 7 is an exploded perspective view of a conventional key cylinder with a button attached.

8 is a cross-sectional view taken along the line CC of FIG.

[Explanation of symbols]

 10 Column Cover 10a Mounting Hole for Key Cylinder 11 Single Key Cylinder 11a Fitting Convex 12 Ring Spacer 12a Fitting Recess 12b Circumferential Groove 13 Ring Finisher 13a Flange 14 Flange Position Plate 14a Main Body 14b Flange 15 Escussion 15a Position Plate fitting hole 15b Locking claw 15c Wedge rib 15d Locking piece

Claims (1)

[Claims] 1. A device for mounting a single key cylinder (11) in a mounting hole for a key cylinder with a button formed in a column cover (10), the tip part of the single key cylinder (11). Fitting recess that fits over the fitting protrusion (11a) formed on the cylinder (11)
A ring-shaped spacer (12) having (12a), a ring-shaped finisher (13) having a flange (13a) and screwed to the tip of the single key cylinder (11), and the ring-shaped spacer (12) A position plate (14) with a flange sandwiched between the position plate (14) and the finisher (13), and a position plate fitting hole (15a) into which the main body (14a) of the position plate (14) with a flange is fitted, is formed.
An engaging claw (15b) that fits into the mounting hole for the key cylinder with a button and is fixed to the peripheral edge of the hole, and a wedge-shaped rib on its back surface.
The escutcheon (1) having the engaging piece (15d) having (15c)
When the key cylinder is mounted, the end face portion of the escutcheon (15) that continues to the position plate fitting hole (15a) is the ring spacer (12) and the flanged position plate (14). A device for mounting a single key cylinder to a column cover, which is sandwiched by a flange (14b).