JPH066650U - Cylinder lock key operation detection device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a key operation detection device for a cylinder lock, which is less affected by rainwater, dust, and the like, and which can detect the state of key rotation operation. [Structure] A body 1 of a steering lock device S is provided with a light emitting element 7 and a light receiving element at intervals in the rotation direction of an inner rotor 4 and facing each other. A notch groove 11 is formed on the outer periphery of the inner rotor 4 so as to be located on the line connecting the light emitting element 7 and the light receiving element when the inner rotor 4 is in the ON position. Inner rotor 4 is O
When in the FF position or the LOCK position, the light from the light emitting element 7 is blocked by the outer peripheral surface of the inner rotor 4. When the light emitting element 7 and the light receiving element are connected to a power source through a buzzer, a display, etc., and the light receiving element does not receive the light from the light emitting element 7 (that is, when the inner rotor 4 is in the OFF position or the LOCK position). , Buzzer sounds for a certain period of time, and the display lights up.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a key operation detecting device for a cylinder lock using an optical element.

[0002]

[Prior art]

 Conventionally, as this type of device, one disclosed in Japanese Utility Model Publication No. 56-33797 is known. The device described in this publication is arranged such that a light emitting element and a light receiving element are arranged so as to face each other around a key hole, and detects that light from a light emitting element is blocked by a key. Thus, the operation state of the key such as whether or not the key is inserted in the key hole is detected.

[0003]

[Problems to be solved by the device]

 However, since the above conventional device detects that the light from the light emitting element is blocked by the key itself, each optical element is arranged directly below the cylinder cap arranged on the front surface of the rotating inner rotor. There is a need to. As a result, rainwater, dust, etc., may intrude through the key hole opened in the cylinder cap and adversely affect each optical element in the case where the steering lock device mounted on a motorcycle is exposed to the outside air. There is a risk of it. Further, when the key is inserted, the light from the light emitting element is always blocked, so that only the key insertion / removal can be detected, and the rotation operation state of the key cannot be detected. The present invention has been made in view of the above circumstances, and provides a key operation detection device for a cylinder lock that is less affected by rainwater, dust, and the like, and that can detect the state of key rotation operation. It is intended to be provided.

[0004]

[Means for Solving the Problems]

 Therefore, in the present invention, the inner rotor, which can be rotated by rotating the inserted predetermined key, and the inner rotor are arranged outside the inner rotor with a gap in the rotation direction of the inner rotor. And a light guide path for the inner rotor so that the light receiving element can receive the light from the light emitting element when the inner rotor is at a predetermined rotation position. I did it.

[0005]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. 1 is a sectional view taken along the line II of FIG. 2, FIG. 2 is a front view of a steering lock device mounted on a motorcycle at an ON position, FIG. 3 is a sectional view taken along the line III-III of FIG. 1, and FIG. 4 is an inner rotor OFF. FIG. 5 is a sectional view showing a state in which the inner rotor is rotated to the LOCK position, and FIG. 5 is a sectional view showing a state in which the inner rotor is rotated to the LOCK position.

As shown in FIGS. 1, 2 and 3, an ignition switch 2 is provided at a rear end of a body 1 made of a hard resin material of a steering lock device S, and an ignition switch 2 is provided inside the body. A cylinder lock 3 that is operated to operate the ignition switch 2 is housed.

The cylinder lock 3 has a key insertion hole 4 a and is composed of an inner rotor 4 that houses a plurality of lock tumblers and an outer 5 that houses the inner rotor 4. A cylinder cap 12 is attached to the head of the inner rotor 4, and a key hole 12a is formed in the center of the cylinder cap 12. Here, the connecting portion 4b integrated with the inner rotor 4 is engaged with the ignition switch 2 in a square hole, and the ignition switch 2 can be operated by rotating the inner rotor 4 by operating a key. Has been done.

A lock pin 6 is housed in the rear portion of the body 1 at right angles to the cylinder lock 3, and the lock pin 6 is linked to a crank portion 4 c of the inner rotor 4. That is, when the inner rotor 4 is rotated to the LOCK position by a key operation, the lock pin 6 projects to hold the handle in the locked state, and when the inner rotor 4 is rotated in the ON position direction, the lock pin 6 is rotated. Is pulled into the body 1, and the locked state of the handle can be released.

A light emitting element 7 and a light receiving element 8 are arranged in the body 1 at intervals in the rotation direction of the inner rotor 4 and facing each other, and the outer 5 is provided with the light emitting element 7 Windows 9 and 10 are respectively formed at positions where the light receiving element 8 and the light receiving element 8 exist. Further, the inner rotor 4 is formed with a notch groove 11 as a light guide path in a part of its outer circumference. Here, the notch groove 11 is located on the line connecting the light emitting element 7 and the light receiving element 8 when the inner rotor 4 is in the ON position (FIG. 3), whereby the inner rotor 4 is in the ON position. In this case, the light receiving element 8 can receive the light from the light emitting element 7. When the inner rotor 4 is in the OFF position (FIG. 4) or the LOCK position (FIG. 5), the light from the light emitting element 7 is blocked by the outer peripheral surface of the inner rotor 4 and is not received by the light receiving element 8. . The light emitting element 7 and the light receiving element 8 are connected to a power source via a control circuit, a buzzer, a display, etc., which are not shown. Then, when the light receiving element 8 does not receive the light from the light emitting element 7 (that is, when the inner rotor 4 is in the OFF position or the LOC K position), the buzzer sounds for a certain period of time or the indicator is turned on, This makes it possible to inform the driver that the key should be removed at the OFF position or the LOCK position. In addition, by detecting that the light from the light emitting element 7 is blocked in accordance with the rotational position of the inner rotor 4 as described above, it becomes possible to detect the state of the rotational operation of the key. Further, since the cutout groove 11 for allowing the light from the light emitting element 7 to pass therethrough can be formed at an arbitrary position in the longitudinal direction of the inner rotor 4, the light emitting element 7 and the light receiving element 8 are connected to the key hole of the cylinder cap 12. 12a (that is, a place where rainwater, dust and the like enter) can be arranged at a position distant from each other, and as a result, the light emitting element 7 and the light receiving element 8 are not adversely affected by rainwater, dust and the like.

Next, the operation of this embodiment will be described. At the LOCK position (Fig. 5), the lock pin 6 projects to hold the handle in the locked state.

When the inner rotor 4 is turned from the LOCK position to the ON position (FIG. 3) through the OFF position (FIG. 4) by a key operation, the lock pin 6 is pulled into the body 1 and the locked state of the handle is released. At the same time, the power is turned on and the head lamps, tail lamps, etc. can be turned on. When the inner rotor 4 is further rotated from the ON position, the ignition switch 2 operates and the starter motor drives to start the engine. When the engine starts, release the key and the inner rotor 4 will automatically return to the ON position. At this ON position, the notch groove 11 formed in the inner rotor 4 is located on the line connecting the light emitting element 7 and the light receiving element 8, and the light receiving element 8 can receive the light from the light emitting element 7. It is in. Therefore, the buzzer does not sound and the indicator does not light.

When the inner rotor 4 is returned from the ON position to the OFF position (FIG. 4), the ignition circuit is opened and the engine stops. At the OFF position, the notch groove 11 formed in the inner rotor 4 is separated from the line connecting the light emitting element 7 and the light receiving element 8, and the light from the light emitting element 7 is blocked by the outer peripheral surface of the inner rotor 4. The light receiving element 8 does not receive light. When it is detected that the light receiving element 8 is not receiving light as described above, the buzzer sounds for a certain period of time and the display is turned on. As a result, the driver can be informed that the key should be removed, and the driver will not forget to remove the key when leaving the vehicle in the OFF position.

When the vehicle is not used for a long time, after rotating the handle to the locked position, the inner rotor 4 is returned from the OFF position to the LOCK position (FIG. 5) by a key operation. Then, the lock pin 6 projects to hold the handle in the locked state. At this LOCK position as well as at the OFF position, the notch groove 11 formed in the inner rotor 4 is separated from the line connecting the light emitting element 7 and the light receiving element 8, and the light from the light emitting element 7 is emitted. The light is not blocked by the outer peripheral surface of the light receiving element 8 and does not receive light. Therefore, the buzzer and the indicator can inform the driver that the key should be removed, and the vehicle can be prevented from being stolen.

In the above embodiment, a notch is formed in a part of the outer circumference of the inner rotor 4 so that the light receiving element 8 can receive the light from the light emitting element 7 when the inner rotor 4 is at a predetermined rotation position. Although the groove 11 is formed, the structure is not necessarily limited to this. For example, even if the inner rotor 4 is provided with a hole orthogonal to its longitudinal direction, the same effect can be obtained. it can.

Further, in the above-mentioned embodiment, it is described that the light emitted from the light emitting element 7 is detected to be blocked at the OFF position and the LOCK position, and the buzzer is sounded to prevent forgetting to remove the key. However, the present invention is not necessarily used only for this purpose, and can be used to simply determine the ON state, the OFF state, or the LOCK state.

[0016]

[Effect of device]

 As described above, according to the present invention, the inner rotor, which can be rotated by rotating the inserted predetermined key, and the outer rotor, which are arranged at intervals in the rotation direction of the inner rotor, face each other. And a light guide path for the inner rotor so that the light receiving element can receive the light from the light emitting element when the inner rotor is at a predetermined rotation position. By doing so, the light guide path can be formed at any position in the longitudinal direction of the inner rotor, so that the light emitting element and the light receiving element can be placed away from the key hole of the cylinder cap. There is an excellent effect that the light emitting element and the light receiving element are not adversely affected by rainwater, dust and the like. Further, since it is detected that the light from the light emitting element is blocked according to the rotational position of the inner rotor, it is possible to detect the rotational operation state of the key.

[Brief description of drawings]

1 is a sectional view taken along line I-I of FIG.

FIG. 2 is a front view of a steering lock device mounted on a motorcycle in an ON state.

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a cross-sectional view showing a state where an inner rotor is turned to an OFF position.

FIG. 5 is a cross-sectional view showing a state in which the inner rotor is rotated to the LOCK position.

[Explanation of symbols]

 3 Cylinder lock 4 Inner rotor 7 Light emitting element 8 Light receiving element 11 Notched groove

Claims (2)

[Scope of utility model registration request] 1. An inner rotor rotatable by a rotating operation of a predetermined key inserted therein, and an outer rotor which is disposed outside the inner rotor with a space therebetween in the rotational direction of the inner rotor and is arranged to face each other. A light guide path is provided in the inner rotor so that the light receiving element can receive light from the light emitting element when the inner rotor is at a predetermined rotation position. Cylinder lock key operation detection device. 2. The light guide path is a groove formed by cutting out a part of the outer circumference of the inner rotor.
Cylinder lock key operation detection device.