Abstract: A cylinder lock, includes a sleeve, a key plug arranged in the sleeve and having a key insert hole opening on an edge face of a key insert side, a key matching member movably supported on the key plug, detachably arranged in the sleeve and withdrawn from the sleeve by an insertion of a matching key into the key insert hole, and a clutch arranged on an opposite side of the key insert side of the sleeve for transmitting an unlocking movement of an operating handle to a locking mechanism.

Abstract: A mechanical key code verification system including a mechanical key and a lock apparatus into which the mechanical key is insertable. The mechanical key includes a key body and a key code pattern including a plurality of recessed portions and a plurality of non-recessed portions formed on the at least one plane of the key body, the key code pattern having line symmetry.

Abstract: A tumbler-type lock apparatus for use with a tumbler-type card key having a code pattern region including an array of holes and non-hole portions that expresses a key code of the tumbler-type card key. The tumbler-type lock apparatus includes a slider case and a slider movable relative to the slider case when the tumbler-type card key is inserted into the tumbler-type lock apparatus. Tumblers extending in the slider case and slider each correspond to one of the holes or non-hole portions. Springs bias the tumblers towards the slider. The tumbler-type lock apparatus verifies the tumbler-type card key when the tumblers are engaged with the slider case and slider during insertion of the tumbler-type card key. The slider includes accommodation portions. A distal end of the tumbler that has passed through the corresponding hole of the tumbler-type card key is accommodated in the corresponding accommodation portion.

Abstract: A lock device includes: a case member that is attached to a lock target; a sleeve member that is housed inside the case member such that the sleeve member is movable along an axial direction; a plunger member that is housed inside the sleeve member such that the plunger member is movable along the axial direction; a coupling structure in which a key insertion hole that allows insertion of a key is formed, the coupling structure being placed inside the plunger member and coupling together the sleeve member and the plunger member; and a manipulable member that is rotatably coupled to the sleeve member and the plunger member, rotates when just the plunger member moves, and releases the locked state of the lock target. The coupling structure is configured to release the coupling just when a regular key is inserted into the key insertion hole.

Abstract: There is disclosed a key required to have a reduced mechanical strength. When an authentic key is inserted into the keyway in a locking device, only a plunger member starts to move from a standby position toward an operative position. When the plunger member is pushed to the operative position, an operating lever located in the locked position swings to the unlocked position. The operating lever unlocks a locking mechanism that is in a locked state. When an inauthentic key is inserted in the keyway, the plunger member and sleeve member move together to the operative position. The operating lever in the locked position does not swing. Thus, the operating lever maintains the body portion of the locking mechanism locked.

Abstract: A cylinder lock device includes a rotor case in a cylindrical shape, a rotor arranged to be rotatable inside the rotor case including a key insert hole being formed to extend in an axial direction, a sleeve arranged to be rotatable between the rotor case and the rotor and having an engaging groove, and a plurality of tumblers provided in the rotor to be movable in a radial direction to engage with the engaging groove of the sleeve when biased to an outer radial direction and to release the engagement with the sleeve by disengaging with the engaging groove when a regular key is inserted into the key insert hole. A position in a circumferential direction and a size of the engaging groove of the sleeve is configured to contact with an inner surface of the engaging groove at a different position in a circumferential direction with respect to at least two tumblers among the plurality of tumblers.

Abstract: A lock device has: a cylindrical case member in which is formed a space extending in an axial direction; a cylindrical sleeve member is disposed at an interior of the case member, and is supported and configured to move along the axial direction between a predetermined standby position and an operating position; a plunger member which is disposed at an interior of the sleeve member and configured to move along the axial direction, and which is supported and configured to move between the standby position and the operating position, and in which a key insertion hole, which is for insertion of a key from an outer side at the standby position, is formed along the axial direction; a plurality of tumbler members disposed at the plunger member and configured to move along a direction orthogonal to the axial direction between proper positions, a side lock member disposed at the plunger member and configured to approach and move away from the tumbler members, and an interlocking mechanism which, at a time when the co

Abstract: A vehicle electronic portable key system including a master key and sub-key. A retainer is arranged in the vehicle to retain the sub-key. A control unit determines whether the master key or sub-key is located in a vehicle interior or exterior wireless communicatable area. When the key is located in one of the wireless communicatable areas, the control unit permits various operations of the vehicle in accordance with the communicable area in which the key is located. The control unit determines that the sub-key is in a lent state if the sub-key is removed from the retainer when the master key is located in the interior wireless communicatable area. In a state in which the sub-key is located in one of the wireless communicatable areas after removal from the retainer, the control unit limits the operations of the vehicle unless the sub-key is determined as being in the lent state.

Abstract: A portable device includes a main body, which has a mechanical key retainer, and a mechanical key, which is removably retained in the mechanical key retainer. An engagement projection extends from the mechanical key in a direction perpendicular to the direction in which the mechanical key is inserted into the mechanical key retainer. The engagement projection is formed from a resilient material. The mechanical key retainer includes an engagement recess for engaging the engagement projection when the mechanical key is retained in the mechanical key retainer. This structure reduces the size of the portable device and improves portability of the portable device.

Abstract: A card-type electronic key having a high level of portability and including an emergency mechanical key that is difficult to duplicate. The electronic key is used with a communication controller arranged in a vehicle. The electronic key includes a communication circuit unit which transmits a wireless signal including an authentication code. The communication circuit unit is allowed to control an external device arranged on the subject when the communication controller receiving the wireless signal determines that the verification code is authentic. A key card unit includes a verification code pattern formed by through holes. A concealment film is removably adhered to the key card unit and conceals the through holes so that the through holes cannot be seen.

Abstract: A key system including a mechanical key and a lock apparatus into which the mechanical key is insertable. The mechanical key includes a key code pattern having recessed portions and non-recessed portions. The mechanical key is operated in key manipulation directions. The lock apparatus includes tumblers, each of which is associated with one of the recessed and non-recessed portions. The lock apparatus mechanically verifies the key code pattern when the mechanical key is inserted therein based on whether the tumblers are aligned with the associated recessed and non-recessed portions. The recessed and non-recessed portions in the key code pattern are deviated from the key manipulation directions.

Abstract: A mechanical key code verification system including a mechanical key and a lock apparatus into which the mechanical key is insertable. The mechanical key includes a key body and a key code pattern including a plurality of recessed portions and a plurality of non-recessed portions formed on the at least one plane of the key body, the key code pattern having line symmetry.

Abstract: A cylinder lock, includes a sleeve, a key plug arranged in the sleeve and having a key insert hole opening on an edge face of a key insert side, a key matching member movably supported on the key plug, detachably arranged in the sleeve and withdrawn from the sleeve by an insertion of a matching key into the key insert hole, and a clutch arranged on an opposite side of the key insert side of the sleeve for transmitting an unlocking movement of an operating handle to a locking mechanism.

Abstract: A tumbler-type key verification system including a tumbler-type key and a lock apparatus. The lock apparatus includes a support member, a movable member movable relative to the support member, tumblers which are biased by tumbler springs and are arranged to engage with the support member and the movable member, and a lock mechanism that reinforces the locking strength of the tumblers. The lock mechanism having a two-piece structure including a first piece movably accommodated in the movable member and a second piece movably accommodated in the support member. The lock mechanism reinforces the locking strength of the tumblers by having the first piece or the second piece engage both the movable member and the support member before the tumbler-type key is inserted into the lock apparatus or when the tumbler-type key is being inserted into the lock apparatus.

Abstract: A tumbler-type lock apparatus for use with a tumbler-type card key having a code pattern region including an array of holes and non-hole portions that expresses a key code of the tumbler-type card key. The tumbler-type lock apparatus includes a slider case and a slider movable relative to the slider case when the tumbler-type card key is inserted into the tumbler-type lock apparatus. Tumblers extending in the slider case and slider each correspond to one of the holes or non-hole portions. Springs bias the tumblers towards the slider. The tumbler-type lock apparatus verifies the tumbler-type card key when the tumblers are engaged with the slider case and slider during insertion of the tumbler-type card key. The slider includes accommodation portions. A distal end of the tumbler that has passed through the corresponding hole of the tumbler-type card key is accommodated in the corresponding accommodation portion.

Abstract: A cylinder lock device includes a rotor case in a cylindrical shape, a rotor arranged to be rotatable inside the rotor case including a key insert hole being formed to extend in an axial direction, a sleeve arranged to be rotatable between the rotor case and the rotor and having an engaging groove, and a plurality of tumblers provided in the rotor to be movable in a radial direction to engage with the engaging groove of the sleeve when biased to an outer radial direction and to release the engagement with the sleeve by disengaging with the engaging groove when a regular key is inserted into the key insert hole.

Abstract: A cylinder lock includes a sleeve, and a key plug housed in the sleeve and having an output portion to output an interrupted motion of a clutch device by moving in an insertion and extraction direction by an insertion and extraction of a matching key. The key plug is formed by a pivoting spindle in which the output portion pivotally supports an input clutch element and an output clutch element of the clutch device in the output state by an insertion of the matching key.

Abstract: A lock device includes: a case member that is attached to a lock target; a sleeve member that is housed inside the case member such that the sleeve member is movable along an axial direction; a plunger member that is housed inside the sleeve member such that the plunger member is movable along the axial direction; a coupling structure in which a key insertion hole that allows insertion of a key is formed, the coupling structure being placed inside the plunger member and coupling together the sleeve member and the plunger member; and a manipulable member that is rotatably coupled to the sleeve member and the plunger member, rotates when just the plunger member moves, and releases the locked state of the lock target. The coupling structure is configured to release the coupling just when a regular key is inserted into the key insertion hole.

Abstract: A lock device has: a case member which is cylindrical shaped and in which is formed a space extending in an axial direction; a sleeve member which is cylindrical shaped, and is disposed at an interior of the case member, and is supported and configured to move along the axial direction between a predetermined standby position and an operating position; a plunger member which is disposed at an interior of the sleeve member and configured to move along the axial direction, and which is supported and configured to move between the standby position and the operating position, and in which a key insertion hole, which is for insertion of a key from an outer side at the standby position, is formed along the axial direction; a plurality of tumbler members disposed at the plunger member and configured to move along a direction orthogonal to the axial direction between proper positions, which correspond to engaged portions of a proper key at which proper engaged portions are provided, and improper positions, which do n

Abstract: There is disclosed a key required to have a reduced mechanical strength. When an authentic key is inserted into the keyway in a locking device, only a plunger member starts to move from a standby position toward an operative position. When the plunger member is pushed to the operative position, an operating lever located in the locked position swings to the unlocked position. The operating lever unlocks a locking mechanism that is in a locked state. When an inauthentic key is inserted in the keyway, the plunger member and sleeve member move together to the operative position. The operating lever in the locked position does not swing. Thus, the operating lever maintains the body portion of the locking mechanism locked.