JP2004324204A - Operating knob for key cylinder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an operating knob of fine appearance for a key cylinder. <P>SOLUTION: The operating knob 7 for the key cylinder 3 connected to the end part of a cylinder inner 6 having a key insertion hole 6a is composed of a base part 15 connected to the cylinder inner 6 and having a keyhole 17 communicating with the key insertion hole 6a, and a grip part 30 detachably mounted to the base part 15 to close the keyhole 17. The tip side of an elastic arm part 34 provided at the grip part 30 is provided with an engaging part 35 engaged with an engaging receiving part 23 of the base part 15 to fix the grip part 30 to the base part 15, and a side face of the grip part 30 facing the elastic arm part 34 is provided with an operating hole 33 for operating the elastic arm part 34. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention particularly relates to a key cylinder selectively operable by a key and a remote control device.
[0002]
[Prior art]
[Patent Document 1]
Japanese Utility Model Registration No. 2565644
Conventionally, when a user operates an operation switch of a transmitter, the transmitter transmits a radio wave having a predetermined code, and the code matches a specific code registered in advance on the vehicle side. In some cases, the steering lock device of the vehicle is unlocked. In such a steering lock device, the lock of the steering lock device may not be unlocked due to running out of battery or failure of the transmitter, so that the lock of the steering lock device can be unlocked not only by the transmitter but also by a mechanical key. What has been developed.
[0004]
For example, Patent Literature 1 discloses a steering lock device that can be unlocked by using either a transmitter or a mechanical key. In the steering lock device of Patent Document 1, a knob is attached to an end of a key cylinder, and a hole for inserting a mechanical key is formed in a shaft of the knob. When the steering lock device is unlocked using the transmitter, the key cylinder can be rotated by transmitting a predetermined code from the transmitter, and the knob connected to the key cylinder is rotated to operate. The steering shaft is unlocked. On the other hand, when unlocking the steering lock device using a mechanical key, the key cylinder can be rotated by inserting the mechanical key into the hole of the knob, and the steering is performed by rotating the mechanical key together with the knob. The lock of the shaft is released.
[0005]
[Problems to be solved by the invention]
However, the knob of the steering lock device disclosed in Patent Literature 1 has a problem that its appearance is deteriorated because the hole for inserting the mechanical key is open to the driver side. In addition, dust easily enters the hole of the knob, and if the opening width of the hole is narrow, cleaning may not be performed in some cases.
[0006]
Therefore, the present invention has been made in view of the above-mentioned conventional problems, and has as its object to provide an operation knob for a key cylinder that has a good appearance.
[0007]
[Means for Solving the Problems]
In order to solve the above problem, an operation knob of a key cylinder according to the present invention is an operation knob of a key cylinder connected to an end of a cylinder inner having a key insertion hole, wherein the operation knob is connected to the cylinder inner. A base having a key hole communicating with the key insertion hole, and a grip portion detachably attached to the base portion to close the key hole, and a distal end side of an elastic arm portion provided in the grip portion. An operation portion for engaging the engagement receiving portion of the base portion to fix the grip portion to the base portion, and operating the elastic arm portion on a side surface of the grip portion facing the elastic arm portion. Holes are provided.
[0008]
According to this structure, the key hole of the operation knob is closed by the grip portion, and the operation hole for removing the grip portion is provided on the side surface of the grip portion at a position invisible to the user. It can be formed with good appearance and can prevent dust from entering the key hole. In addition, since it is not necessary to provide a key hole for inserting a key in the grip portion that covers the key hole of the base portion, the shape of the grip portion can be designed relatively freely. Further, the grip can be easily removed by operating the elastic arm through the operation hole using a pin or the like.
[0009]
Further, the base of the operation knob may be formed integrally with the cylinder inner. With this configuration, it is not necessary to provide the base of the operation knob as a separate component, and the number of components can be reduced.
[0010]
Further, the elastic arm portion and the engaging portion may be formed integrally with the grip portion. With this configuration, it is possible to manufacture the operation knob at low cost without requiring a separate component for detachably fixing the base and the grip.
[0011]
Furthermore, it is preferable that the operation hole is formed so that a mechanical key can be inserted. According to this structure, the grip portion of the operation knob can be removed by the mechanical key for unlocking the key cylinder, so that it is not necessary to separately prepare a pin for removal.
[0012]
Furthermore, a step may be provided in the operation hole. With this configuration, it is possible to prevent anything other than the mechanical key from being inserted into the operation hole, and to prevent the grip of the operation knob from being removed due to mischief or the like.
[0013]
【Example】
Hereinafter, a first embodiment of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a longitudinal sectional view of a steering lock device 1 equipped with an operation knob 7 according to a first embodiment of the present invention, FIG. 2 is an exploded perspective view of the operation knob 7, and FIG. It is.
[0014]
The steering lock device 1 shown in FIG. 1 includes a substantially cylindrical body 2 for housing each member. A key cylinder 3 is mounted inside the front side (the right side in FIG. 1) of the body 2. The key cylinder 3 has a cylindrical cylinder outer 4 fixed to the body 2, a cylindrical rotor 5 rotatably housed inside the cylinder outer 4, and a rotatable housed inside the rotor 5. It comprises a cylindrical inner cylinder 6 and an operation knob 7 fixed to the front end of the cylinder inner 6.
[0015]
A key insertion hole 6a for inserting a mechanical key is provided in the cylinder inner 6 in the axial direction, and a plurality of plate-shaped tumblers 8 are arranged at equal intervals in the axial direction of the cylinder inner 6 in a direction perpendicular to the key insertion hole 6a. Are arranged. Each tumbler 8 is urged outward from the cylinder inner 6 by a spring (not shown). The cylinder inner 6 has a lock groove formed on the inner peripheral surface of the rotor 5 when the mechanical key is not inserted into the key insertion hole 6a of the cylinder inner 6, like a general cylinder lock. 5a, whereby the rotation of the cylinder inner 6 in the rotor 5 is prevented. On the other hand, when a mechanical key is inserted into the key insertion hole 6a of the cylinder inner 6, each tumbler 8 is immersed in the cylinder inner 6, and the engagement between each tumbler 8 and the lock groove 5a of the rotor 5 is released. The cylinder inner 6 can rotate inside the rotor 5.
[0016]
An engagement groove 5b is formed in a rear outer peripheral portion of the rotor 5. When the solenoid 10 fixed to the upper part of the body 2 is in a non-operating state, the edge of the lock lever 11 connected to the plunger 10a of the solenoid 10 is engaged with the engagement groove 5b. Thus, when the solenoid 10 is in a non-operating state, the rotation of the rotor 5 is prevented.
[0017]
The solenoid 10 is electrically connected to a controller (not shown) provided on the vehicle side. The controller performs electronic authentication by wirelessly exchanging signals with an electronic key (not shown) of the user, and operates the solenoid 10 when authentication is confirmed. When the solenoid 10 is operated, the lock lever 11 is lifted upward by the plunger 10a, the engagement between the lock lever 11 and the engagement groove 5b of the rotor 5 is released, and the rotor 5 becomes rotatable. At this time, when the operation knob 7 connected to the cylinder inner 6 is rotated, the cylinder inner 6 and the rotor 5 connected by the tumbler 8 rotate together in the cylinder outer 4.
[0018]
The operation knob 7 is attached to a protruding portion 6 b protruding from the front end of the cylinder inner 6. The operation knob 7 is formed of a resin material, and includes a base 15 fixed to the cylinder inner 6 and a grip 30 as an operation unit, as shown in FIGS. 2 and 3. The base 15 has a disk-shaped substrate 16, and a key hole 17 communicating with the key insertion hole 6 a of the cylinder inner 6 is formed at the center of the axis of the substrate 16. At the outer peripheral portion of the key hole 17 on the bottom surface of the substrate 16, a cylindrical mounting portion 18 protruding toward the cylinder inner 6 is provided. Engaging holes 19 are provided on both side surfaces of the mounting portion 18 for engaging with the engaging claws 6c of the protruding portion 6b of the cylinder inner 6, and the mounting portion 18 of the base portion 15 is connected to the protruding portion 6b of the cylinder inner 6. By externally fitting and pushing in, the engagement claw 6c is engaged in the engagement hole 19, and the base 15 of the operation knob 7 is fixed to the cylinder inner 6.
[0019]
On the other hand, on the outer peripheral portion of the key hole 17 on the upper surface of the substrate 16, a support portion 21 projecting in a substantially U-shape is provided. In addition, a through hole 22 is provided in the substrate 16 on one end side of the support portion 21, and a step-like engagement receiving portion 23 is formed at an edge of the through hole 22. Further, an engagement protrusion 24 protruding outward is provided at an end of the substrate 16 at the other end of the support 21.
[0020]
The grip portion 30 of the operation knob 7 includes a cylindrical portion 31 that is fitted to the outer peripheral surface of the substrate 16 of the base portion 15 and a square tube portion 32 that protrudes upward from the upper surface of the cylindrical portion 31. Are integrally formed in a hollow shape so as to cover the upper surface side. On one side surface of the square tube portion 32, an operation hole 33 having a substantially radial cross-sectional shape on the distal end side of the mechanical key and formed slightly larger than the radial cross-section of the mechanical key is provided, and the mechanical key is inserted. I can do it. An elastic arm portion 34 is provided integrally with the grip portion 30 from the upper side to the lower side inside the grip portion 30 on the operation hole 33 side. An engagement portion 35 that engages with the engagement receiving portion 23 of the base 15 is formed at the tip of the elastic arm portion 34. Since the elastic arm portion 34 is provided at a position facing the operation hole 33, when the mechanical key is inserted into the operation hole 33, the elastic arm portion 34 is pressed inward by the tip of the mechanical key and elastically deformed. Then, the engagement between the engagement portion 35 and the engagement receiving portion 23 is released. On the inner peripheral edge of the grip portion 30 on the side opposite to the operation hole 33, an engaging concave portion 36 that engages with the engaging convex portion 24 of the base portion 15, and the engaging convex portion 24 is guided to the engaging concave portion 36. An inclined portion 37 is formed.
[0021]
To attach the grip portion 30 to the base portion 15, the grip portion 30 is positioned at a predetermined position and the grip portion 30 is pushed in from above the base portion 15, and the edge of the through hole 22 is brought into contact with the inclined surface 35 a of the engagement portion 35. At the same time, the inclined portion 37 of the grip portion 30 comes into contact with the engagement convex portion 24. When the grip portion 30 is further pushed in, the elastic arm portion 34 is bent inward, and the grip portion 30 near the inclined portion 37 is bent outward. When the engagement portion 35 moves to a position corresponding to the engagement receiving portion 23, the elastic arm portion 34 and the grip portion 30 near the inclined portion 37 are elastically restored, respectively, and the engagement portion 35 and the engagement receiving portion 23 are returned. The engaging projection 24 and the engaging recess 36 are engaged with each other, and the grip portion 30 is fixed to the base 15.
[0022]
In this manner, when the base 15 of the operation knob 7 and the grip 30 are assembled, the upper surface side of the base 15 is covered by the grip 30, so that the key hole 17 of the base 15 is exposed to the front. Thus, the operation knob 7 having a good appearance can be obtained. In addition, it is possible to prevent dust from entering the key hole 17, and as a result, it is possible to prevent dust from entering the cylinder inner 6 due to insertion of the mechanical key.
[0023]
Referring to FIG. 1 again, a cam (not shown) for unlocking a steering shaft (not shown) of the vehicle is provided at the rear end of the cylinder inner 6 similarly to a general conventional steering lock device. The shaft 12 is connected. The camshaft 12 is configured such that the rotation of the cylinder inner 6 is permitted, and when the camshaft 12 rotates together with the cylinder inner 6, the lock of the steering shaft is released.
[0024]
Next, an operation procedure of the steering lock device 1 having the above configuration will be described.
[0025]
When unlocking the steering lock device 1 with an electronic key, when a user with the electronic key enters the vehicle, electronic approval is performed between the electronic key and the controller, and authentication is confirmed. , The controller operates the solenoid 10. When the solenoid 10 operates, the lock lever 11 is lifted upward by the plunger 10a, the engagement between the lock lever 11 and the engagement groove 5b of the rotor 5 is released, and the rotation of the rotor 5 is permitted. Then, by gripping and rotating the grip portion 30 of the operation knob 7 by hand, the cylinder inner 6, the rotor 5, and the camshaft 12 rotate together, and the lock of the steering lock device 1 is released.
[0026]
On the other hand, in an emergency where the electronic key cannot be used to release the steering lock device 1 due to a failure of the electronic key, running out of battery, or the like, the steering lock device 1 is released using a mechanical key.
[0027]
To release the lock of the steering lock device 1 using the mechanical key, first, as shown in FIG. 3, the mechanical key 13 is inserted into the operation hole 33 of the operation knob 7 in the direction A, and the mechanical key 13 is pressed. Then, the elastic arm portion 34 is elastically deformed inward by the tip of the mechanical key 13, and the engagement between the engagement portion 35 and the engagement receiving portion 23 is released. When the mechanical key 13 is operated in the direction B shown in FIG. 3, the operation hole 33 side of the grip portion 30 is lifted, and the engagement convex portion 24 comes out of the engagement concave portion 36 due to the inclination of the grip portion 30 to engage. Then, the grip 30 is removed from the base 15 of the operation knob 7. When the grip 30 is removed, the key hole 17 of the base 15 is exposed to the front side, and the mechanical key 13 can be inserted.
[0028]
When the mechanical key 13 is inserted into the key insertion hole 6a of the cylinder inner 6 through the key hole 17 of the base 15, the tumbler 8 of the cylinder inner 6 is immersed in the cylinder inner 6, and the lock groove of the tumbler 8 and the rotor 5 is locked. The engagement with 5a is released, and the cylinder inner 6 becomes rotatable. When the base 15 of the operation knob 7 is rotated together with the mechanical key 13, the cylinder inner 6 and the camshaft 12 rotate to unlock the steering lock device 1.
[0029]
As described above, only by inserting the mechanical key 13 into the operation hole 33 of the operation knob 7 and operating it, the base 15 and the grip 30 of the operation knob 7 can be easily separated. Therefore, even in an emergency such as when the battery of the electronic key runs out, the grip 30 of the operation knob 7 can be easily removed and the lock of the steering lock device 1 can be unlocked.
[0030]
In the steering lock device 1 according to the present embodiment, the direction of the grip portion 30 changes depending on the operation position of the operation knob 7. If it is provided on the side surface of the grip portion 30 located on the side or the like, it is possible to prevent the appearance from being impaired and to prevent dust from entering the operation hole 33.
[0031]
Further, if the operation hole 33 of the operation knob 7 has a stepped portion 33a as shown in FIG. 2, for example, it is possible to prevent anything other than the mechanical key from being inserted into the operation hole 33, The grip portion 30 of the operation knob 7 can be prevented from being removed due to mischief or the like.
[0032]
In the present embodiment, the base 15 and the grip 30 of the operation knob 7 are completely separated from each other. However, the present invention is not limited to this. Instead of the connection by the engagement recess 36 of the grip portion 30 and the engagement portion 36, a part of the base portion 15 and a part of the grip portion 30 may be integrally formed so as to be elastically deformable and connected. It is not necessary for the gripper 30 to be completely separated from the gripper 30. Further, when the grip 30 is removed from the base 15, it is sufficient that the grip 30 can be moved at least to the extent that a mechanical key can be inserted into the key hole 17 of the base 15.
[0033]
Further, the shapes of the engagement portion 35 and the engagement receiving portion 23 are not limited to the shapes shown in the present embodiment, and various modifications are conceivable. For example, as shown in FIG. 4, the engaging portion 35 is formed in a substantially T shape, the through hole 22 is formed to penetrate the substrate 16 in a convex shape in cross section, and the engagement receiving portion 23 of the substrate 16 is formed. The bottom surface may be used.
[0034]
FIG. 5 is a view showing a second embodiment of the present invention, in which the base of the operation knob 7 is formed integrally with the cylinder inner 6, and a through hole 22 is formed in the front end face of the protrusion 6b of the cylinder inner 6. Thus, an engagement receiving portion 23 is provided, and an engaging projection 24 is provided on the outer peripheral surface of the protruding portion 6b. The key hole of the base is also formed integrally with the key insertion hole 6a of the cylinder inner 6. Thus, similarly to the first embodiment, the key insertion hole 6a can be closed by the operation knob 7, and when unlocking is performed using the mechanical key, the mechanical key is inserted into the operation hole 33 and the elastic arm portion 34 is inserted. By operating, the operation knob 7 can be easily removed from the cylinder inner 6.
[0035]
【The invention's effect】
As is clear from the above description, the operation knob of the key cylinder of the present invention has a keyhole of the operation knob closed by the gripper, and a gripper at a position where the operation hole for removing the gripper is invisible to the user. By providing the control knob on the side surface, the operation knob can be formed with a good appearance, and dust can be prevented from entering the key hole and the operation hole. In addition, since it is not necessary to provide a key hole for inserting a mechanical key in the grip portion covering the key hole of the base portion, the shape of the grip portion can be designed relatively freely. Further, the grip can be easily removed by operating the elastic arm through the operation hole using a pin or the like.
[0036]
Also, if the base of the operation knob is formed integrally with the cylinder inner, the number of parts can be reduced and the number of assembling steps can be reduced.
[0037]
Furthermore, if the elastic arm portion and the engaging portion are formed integrally with the grip portion, an assembling mechanism using separate parts for detachably fixing the base portion and the grip portion is not required, and the operation knob can be manufactured at low cost. Becomes possible.
[0038]
Furthermore, since the operation hole is formed in a shape into which the mechanical key for unlocking the key cylinder can be inserted, the grip portion of the operation knob can be easily removed by the mechanical key. There is no need to prepare separately. Therefore, even in an emergency such as when the battery of the electronic key runs out, the grip portion of the operation knob can be removed and the key cylinder can be unlocked.
[0039]
Furthermore, the operation hole has a shape that allows insertion of a mechanical key and has a stepped portion, thereby preventing anything other than the mechanical key from being inserted into the operation hole, and holding the operation knob by mischief or the like. Can be prevented from being removed.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of a steering lock device employing an operation knob according to a first embodiment of the present invention.
FIG. 2 is an exploded perspective view of the operation knob according to the first embodiment.
FIG. 3 is a side sectional view of the operation knob of the first embodiment.
FIG. 4 is a perspective view showing a modified example of the engaging portion of the operation knob.
FIG. 5 is a side sectional view of an operation knob according to a second embodiment.
[Explanation of symbols]
3 ... key cylinder, 6 ... cylinder inner, 6a ... key insertion hole, 7 ... operation knob, 15 ... base, 17 ... key hole, 23 ... engagement receiving part, 30 ... gripping part, 33 ... operation hole, 34 ... elasticity Arm part, 35 ... engagement part.

Claims (5)

An operation knob of a key cylinder connected to an end of a cylinder inner having a key insertion hole, wherein the operation knob is a base having a key hole connected to the cylinder inner and communicating with the key insertion hole; A grip portion detachably attached to the base portion so as to be closed.The grip portion is engaged with an engagement receiving portion of the base portion at a distal end side of an elastic arm portion provided on the grip portion. An operation knob for a key cylinder, wherein an engagement portion fixed to a base portion is provided, and an operation hole for operating the elastic arm portion is provided on a side surface of the grip portion facing the elastic arm portion. The operation knob for a key cylinder according to claim 1, wherein a base portion of the operation knob is formed integrally with the cylinder inner. The operation knob of a key cylinder according to claim 1, wherein the elastic arm portion and the engagement portion are formed integrally with the grip portion. 4. The operation knob of a key cylinder according to claim 1, wherein the operation hole is formed so that a mechanical key can be inserted. The operation knob of a key cylinder according to claim 4, wherein a step portion is provided in the operation hole.

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