| CPC E05B 81/14 (2013.01) [E05B 81/20 (2013.01); E05B 81/36 (2013.01); E05B 81/66 (2013.01)] | 23 Claims |
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1. A lock apparatus for a vehicle open/close body comprising:
a base member that is provided on one of a vehicle body and an open/close body, which is provided on the vehicle body in an openable and closable manner, and that has an entry opening configured to receive a striker, which is fixed to the other of the vehicle body and the open/close body;
a fork that is provided on the base member and configured to swing in a swing range that includes: a latched position, at which the striker is at the deep end of the entry opening and at which the striker is latchable; a half-latched position, at which the striker is midway in the entry opening and at which the striker is latchable; and an unlatched position, at which the striker is within the entry opening and at which the striker will not latch;
a pawl that is provided on the base member and is displaceable to: a blocking position, at which the fork is blocked from swinging to the unlatched position; and a non-blocking position, at which the fork is allowed to swing to the unlatched position;
an open/close mechanism configured to: displace the pawl to the non-blocking position in response to the open/close mechanism acting on the pawl, and cause the fork to swing to the latched position in response to the open/close mechanism acting on the fork;
a first microswitch; and
a second microswitch;
wherein:
the open/close mechanism comprises:
a drive source configured to generate a first driving force by rotating in a forward direction and a second driving force by rotating in a reverse direction;
an actuation lever, which is supported on the base member coaxial with the fork and is swingable in a first direction and in a second direction, which is opposite of the first direction, independently of the fork; and
a drive train configured to cause the actuation lever to swing: in the first direction in response to transmitting the first driving force from the drive source to the actuation lever, and in the second direction in response to transmitting the second driving force from the drive source to the actuation lever;
the actuation lever comprises:
a first operation portion that, when swung in the first direction, abuts on the fork and causes the fork to swing to the latched position; and
a second operation portion that, when swung in the second direction, abuts on the pawl and displaces the pawl to the non-blocking position;
the first microswitch and the second microswitch each comprise:
a movable projection configured to be pushed in;
a first circuit, which switches between connection and disconnection at a first stroke amount, by which the movable projection is pressed in; and
a second circuit, which switches between connection and disconnection at a second stroke amount, by which the movable projection is pressed in further from the first stroke amount;
the first microswitch is configured to detect when the fork is at the latched position, at the half-latched position, and at the unlatched position; and
the actuation lever is swingable in a swinging range that includes:
an origin position;
a first actuation-end position, which is a first limit position when swinging from the origin position in the first direction;
a second actuation-end position, which is a second limit position when swinging from the origin position in the second direction;
a first intermediate position, which is between the origin position and the first actuation-end position; and
a second intermediate position, which is between the origin position and the second actuation-end position;
with the proviso that the first actuation-end position and the second actuation-end position are collectively referred to as actuation-end positions and the first intermediate position and the second intermediate position are collectively referred to as intermediate positions, the second microswitch is configured to detect when the actuation lever is one of at the origin position, at the actuation-end positions, and at the intermediate positions.
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