Abstract: A door lock device having an anti-theft mechanism comprises a motor adapted to change a locking lever into a locking position by a normal rotation thereof in a predetermined amount, to change an anti-theft member into an anti-theft position by a continuous normal rotation thereof over the predetermined amount, and to return the anti-theft member to an anti-theft canceling position by a reverse rotation thereof. A controller has a locking operation of changing the locking lever into the locking position by using the motor, an anti-theft operation of changing the anti-theft member into the anti-theft position by using the motor, and an anti-theft canceling operation of changing the anti-theft member into the anti-theft canceling position by using the motor. If the anti-theft position of the anti-theft member is detected after performing the locking operation, the controller performs the anti-theft canceling operation.

Abstract: A vehicle door latch device comprises a latch engageable with a striker, a ratchet engageable with the latch, an open lever for releasing the ratchet from the latch so as to open the door, a lock lever displaceable between a locked position and an unlocked position, an actuator for changing over the lock lever, a switch adapted to be turned on when the latch comes into a full-latch position by the engagement with the striker, and a housing. The housing has a passage into which the striker enters, a first space for receiving the latch and the ratchet, a second space for receiving the actuator. The first space is substantially communicated with the outside through said passage, and the second space is substantially isolated from the passage so as to be sealed. The switch is attached in the second space so that a movable terminal of the switch is protruded into the first space.

Abstract: An anti-theft mechanism for a vehicle door lock device comprises a latch mechanism having a latch engaging with a striker, an opening means for releasing the engagement of the latch and the striker, and a lock lever connected to a key cylinder of a door and changed between a locked position and an unlocked position, and a relay mechanism having a sill knob lever connected to a sill knob of the door, an anti-theft member arranged to be changed between an anti-theft cancelled position and an anti-theft position, and an actuator for anti-theft operation for changing the anti-theft member. The sill knob lever is arranged to be pushed by the anti-theft member to return to the locked position, if the anti-theft member switches from the anti-theft position to the cancelled position when the sill knob lever is in the unlocked position.

Abstract: A locking device for trunk lids comprises a latch for engaging with a striker, a ratchet for maintaining the engagement between the latch and the striker, an output member rotating by an electric motor against resilient force of a return spring, a moving bar provided between the ratchet and the output member so as to slide in a lateral direction, the moving bar having one end connected to the output member and the other end connected to a key cylinder, an engaging portion provided with the moving bar for engaging with the ratchet to release the ratchet from the latch when the moving bar laterally slides from an original position by the rotation of the output member or the key cylinder. The moving bar is restored to the original position by the resilient force of the return spring after the ratchet is disengaged from said latch.

Abstract: A door lock device comprises a latch mechanism, an opening lever connected to door opening handles, a lock lever connected to a door key cylinder and an inside locking button, an anti-theft mechanism being displaceable between an anti-theft position for disabling an unlocking operation of the inside locking button and a canceling position for enabling the unlocking operation of the inside locking button, a motor for displacing the anti-theft mechanism, a controller for controlling the motor, and a sensor for detecting a locking operation of the key cylinder. When the sensor continuously detects the locking operation of the key cylinder during a predetermined period, the controller puts the anti-theft mechanism into the anti-theft position by operating the motor.

Abstract: A latch device for use with a vehicle trunk lid comprises a base plate and an actuator unit mounted on the base plate. The base plate has a latch adapted to engage with a striker and a ratchet arranged to engage with the latch for maintaining engagement between the latch and the striker. The actuator unit has a motor, an output gear turned by means of the motor, a cam lever connected to the output gear with a lost motion coupling and a connection shaft which rotates together with the cam lever as one body. The cam lever is adapted to make the ratchet leave the latch when turned. The latch device further has an open lever engaged with a rod leading to a key cylinder of a trunk. The open lever is secured on the connection shaft. The connection shaft and the cam lever are formed from synthetic resin in such a manner to be integral with each other.

Abstract: A door lock apparatus with automatic door closing mechanism comprises a latch engaging with a striker secured to a vehicle body, an automatic door closing motor for over-rotating the latch at its half-latched position beyond its full-latched position while the motor rightly rotates, a switch adapated to turn to continuously ON when the latch is between the half-latched and full-latched positions and turn to OFF when the latch is at other position than between the half-latched and full-latched positions, and a controller for rightly rotating the motor when door closing operation turns the switch from its OFF condition to ON condition and reversely rotating motor when the switch turns from ON to OFF.

Abstract: A door locking device with an antitheft mechanism comprises a main lock lever linked to a key cylinder and changed over from an unlock position to an antitheft position through a lock position, a sub lock lever linked to an inside lock button of the door and changed over to an unlock position and a lock position, and a linkage member having sufficient elasticity to connect the lock levers with each other between the lock position and unlock position. As the main lock lever is displaced from the lock position to the antitheft position the linkage member is elastically deformed and permits the sub lock lever to be left at the lock position, and as the main lock lever is displaced to the antitheft position the sub lock lever is composed so that it can not change over the main lock lever.

Abstract: A vehicle door locking system comprises a control portion for performing control operations of changing positions of lock levers into locking positions and of changing positions of anti-theft mechanisms into anti-theft positions. The control portion causes sending means to send out a warning signal for a predetermined time period, when a faulty change in position of the lock levers or the anti-theft mechanisms occurs. If a key cylinder or a transmitter is operated during the signal is sent out, the warning signal is stopped even before the predetermined time period has elapsed.

Abstract: A remote control transmitter used for a switching of a state of a door lock device between a locked state and an unlocked state and so on comprises a portable-size case, operating buttons provided on an outer surface of the case, a secondary battery provided within the case, a solar battery provided on the outer surface of the case and rechargeably connected to the secondary battery, and a generator for generating a coded signal. One terminal of each operating button is connected to a positive terminal of the secondary battery and the other terminal is connected to a positive terminal of the generator. When one of the operating buttons is pushed, electric current is fed from the secondary battery to the generator.

Abstract: A vehicle door locking device comprises a first locking lever connected to an inside lock button for changing over the locking device to the lock state or unlock state, a second locking lever connected to a key cylinder and an actuator which has a roughly enclosed housing, a motor accommodated in the housing, a first shaft connected to the first locking lever and a second shaft connected to the second locking lever. A first switch mechanism for detecting the position of the first locking lever and a second switch mechanism for detecting the position of the second locking lever are provided in the housing.

Abstract: An actuator unit for a vehicle door locking device comprises a reversible motor, a gear shaft set to an output shaft of the motor, a rotational output member which rotates by engaging with the gear shaft, a driven lever which is changed in at least two positions in accordance with the rotation of the output member, and a housing for storing the above components. The housing is constituted with a main case and a sub case. A first recess for storing the rotational output member, a second recess for storing the motor, a third recess for storing the gear shaft and support means for supporting a rotating shaft of the driven lever are formed on the main case. The output member fitted in the first recess and the gear shaft fitted in the third recess are constituted so that they maintain a meshing state mutually, and each component in the main case is secured at its home position by putting the sub case on the main case.

Abstract: A door lock device with an automatic door closing mechanism comprises a lock body having a recess on its front surface side, a latch adapted to be engaged with a striker so as to be rotated from an open position to a full-latch position by way of a half-latch position, a ratchet adapted to be engaged with the latch so as to hold the engagement between the latch and the striker, an actuator adapted to be operated when the latch is rotated to the half-latch position, an output lever adapted to be rotated by power of the actuator, and a link lever adapted to be rotated by rotation of the output lever so as to move the latch from the half-latch position to the full-latch position. The latch, the ratchet and the link lever are stored in the recess of the lock body, and the output lever is provided on the rear surface side of the lock body.

Abstract: An automotive door lock apparatus comprises a lock body having a latch for engaging with a striker and a ratchet for preventing the latch from pivoting in reverse direction, the lock body defining a cavity for receiving the latch and the ratchet, a spring arranged between the wall portion of the cavity and the tip end of the ratchet for resiliently contacting the ratchet to the latch, a cover plate mounted on the body for covering the cavity and preventing the spring from jumping out, and holding portions formed in the wall portion and the tip end. The holding portions having slightly smaller diameter than the diameter of the spring for temporarily holding the end of the spring.

Abstract: An actuator for use with a vehicle door lock comprises an output member rotated by the motor, a first lever changed between locked and unlocked positions by the rotation of the output member and a key cylinder, a second lever connected to an inside locking button, an anti-theft member having an anti-theft position where the unlocking action of the second lever is not transmitted to the first lever and to the anti-theft cancelled position where the second lever and first lever are connected to each other, a changing member for changing the position of anti-theft member in response to the rotation of the output member; and a cancelling lever for causing the anti-theft member to be returned to the cancelled position by rotation of the output member without moving the first lever.

Abstract: A lock device has a lock lever changing from its locked position to its unlocked position by a normal-lock-motor, and a super lock member displaced between its super locked position preventing the lock lever from changing and a releasing position enabling the change. The lock device has a switch adapted to turn on when a key is inserted into the ignition key cylinder at the driver's seat, another switch adapted to turn on when any person is in the interior of a car, still another switch adapted to turn on when any door opens, still another switch adapted to turn on when the trunk opens, and still another switch adapted to turn on when any window opens. When even one of these switches has turned on and the super lock member is changed to its super locked position, an alarm buzzer sounds or the change to the super lock halts.

Abstract: A vehicle door lock device comprises a first group lever consisting of three kinds of ratchet levers connected to a ratchet, and a second group lever consisting of two kinds of opening levers connected to an outer opening handle. First variation of the lock device having one-motion opening and self-canceling mechanisms can be realized by the first combination of a first ratchet lever and a first opening lever. Second variation of the lock device having one-motion opening mechanism but self-canceling mechanism can be realized by the second combination of a third ratchet lever and the first opening lever. Third variation of the lock device having self-canceling mechanism but one-motion opening mechanism can be realized by the third combination of a second ratchet lever and a second opening lever.

Abstract: A power supplying apparatus for a powered latching mechanism attached to a sliding door which moves along a vehicle body so as to be open and closed comprises a power supplying unit provided on the vehicle body and connected to an electric battery, a power receiving unit provided on the door and coming into contact with the supplying unit when the door is closed to a predetermined position, an electric loop which is established when both the units comes into contact with each other and in which a first electric current for detecting the contact between both the units is caused to flow, a motor controlled by the receiving unit for rotating a latch towards a full-latched position, and means for changing voltage applied to the electric loop when closing of the door is completed by the motor. When the loop is established, the supplying unit begins supplying main power to the receiving unit, and when the voltage of the loop is changed by the changing means, the supplying unit stops supplying the main power.

Abstract: A power closing door latch device for a motor vehicle comprises a latch engaged with a striker, a motor adapted to rotate when the latch is at a half latch position, an output member operative to rotate about a first shaft by the motor and having a slot extending radially and outwardly from the first shaft, a wire lever rotatably mounted on the first shaft and having an opening extending radially and outwardly from the first shaft, a slide member provided between the lever and the output member and having a first roller engaged with the slot and a second roller being engaged with the opening and being capable of rotating independent of the first roller, a spring for pushing the slide member in a direction in which the first roller is engaged with the slot. The wire lever is operatively connected to the latch, whereby the latch is moved by the lever to a full latch position if the output member is turned while the first roller is engaged with the slot.

Abstract: A super-lock mechanism for a vehicular door lock device has a sector arm rotatable by a motor and provided with a first long hole and a second long hole, a lock lever engageable with the first long hole of the sector arm, a movement member connected to the lock lever, a block member movable by the motor, and a slider having an end engageable with the second long hole and another end engageable with a dent of the block member. When the sector arm displaces the lock lever to its locked position, the movement member and slider move in a transversal direction and the block member in a generally longitudinal direction. Additionally, a head portion of the block member engages with a dent of the movement member and another end of the slider engages with a dent of the block member attaining the super-lock condition.