초록 ▼

A shackle lock includes a lock casing, a lock core received in the lock casing, and a shackle unit which has first and second shackle connecting members extendible into first and second shackle holes in the lock casing and a flexible shackle portion connected to the shackle connecting members at two

A shackle lock includes a lock casing, a lock core received in the lock casing, and a shackle unit which has first and second shackle connecting members extendible into first and second shackle holes in the lock casing and a flexible shackle portion connected to the shackle connecting members at two opposite ends. The first shackle connecting member engages the lock core when the lock core is operated to be in a locking state, and is disengaged from the lock core when the lock core is operated to be in an unlocking state, thereby permitting removal thereof from the lock casing. The second shackle connecting member is provided with a spring-loaded retaining member for engaging the lock casing. The retaining member is accessible with the use of a tool inserted into the first shackle hole after removal of the first shackle connecting member, and is adapted to be actuated by the tool for disengaging from the lock casing in order to permit removal of the second shackle connecting member from the lock casing.

대표청구항 ▼

1. A shackle lock comprising:a seamless lock casing having a lock core chamber, a lock core opening for access to said lock core chamber and aligned with said lock core chamber in a first direction, a first shackle chamber, a first shackle hole for access to said first shackle chamber and aligned wi

1. A shackle lock comprising:a seamless lock casing having a lock core chamber, a lock core opening for access to said lock core chamber and aligned with said lock core chamber in a first direction, a first shackle chamber, a first shackle hole for access to said first shackle chamber and aligned with said first shackle chamber in a second direction parallel to the first direction, a second shackle chamber, a second shackle hole for access to said second shackle chamber and aligned with said second shackle chamber in a third direction transverse to the second direction, a first channel confined by a first channel-confining wall and extending in a fourth direction transverse to said first and second directions for communicating said lock core chamber and said first shackle chamber, and a second channel confined by a second channel-confining wall and extending in the second direction for communicating said first shackle chamber and said second shackle chamber;a lock core received in said lock core chamber via said lock core opening and having a latch member and a keypassage that is exposed from said lock core opening and that is adapted to receive a key for moving said latch member between a locking position, in which said latch member extends through said first channel and projects into said first shackle chamber, and an unlocking position, in which said latch member is moved out of said first shackle chamber; anda shackle unit including first and second shackle connecting members and a flexible elongated shackle portion with two opposite ends connected respectively to said first and second shackle connecting members, said first shackle connecting member being extendible into said first shackle chamber via said first shackle hole and being formed with a locking groove for engaging said latch member when said latch member is moved to the locking position, said second shackle connecting member being extendible into said second shackle chamber via said second shackle hole and being provided with a retaining member that extends into said second channel and that engages said second channel-confining wall upon movement of said second shackle connecting member in said third direction so as to retain said second shackle connecting member in said lock casing, said locking groove in said first shackle connecting member being disengaged from said latch member when said latch member is moved to the unlocking position, thereby permitting removal of said first shackle connecting member from said lock casing via said first shackle hole, said retaining member on said second shackle connecting member being accessible by means of a tool which is inserted into said second channel via said first shackle chamber and said first shackle hole when said first shackle connecting member is removed from said first shackle hole and being adapted to be actuated by the tool for disengaging from said second channel-confining wall in order to be removed from said lock casing via said second shackle hole;wherein said latch member includes a latch base which projects from said lock core in said lock core chamber in said first direction, which is rotatable when said lock core is operated via the key, and which is formed with a retaining hole extending in said first direction, said latch member further including a latch body which has an engaging end extendible into said locking groove, a linking arm projecting from said engaging end in said fourth direction to said retaining hole, and an engaging tongue projecting from said linking arm into said retaining hole so that rotation of said latch base results in movement of said latch body in said fourth direction toward and away from said locking groove, thereby permitting engagement and disengagement between said engaging end and said locking groove; andwherein said latch base has a curved stopping wall that extends curvedly from a periphery of said retaining hole, said latch body further including a stopping arm th at projects from said engaging end toward said stopping wall in such a manner that said stopping arm releasably engages said stopping wall when said latch member is moved from said locking position to said unlocking position so as to prevent further rotation of said latch base and that said stopping wall moves away from said engaging arm when said latch member is moved from said unlocking position to said locking position. 2. The shackle lock as claimed in claim 1, wherein said second shackle connecting member of said shackle unit is formed with a slot that communicates with said second channel, said retaining member including a retaining block mounted slidably in said slot, and a biasing spring received in said slot for biasing said retaining block to extend out of said slot and into said second channel so as to prevent removal of said second shackle connecting member from said lock casing via said second shackle hole, said retaining block being adapted to be depressed by the tool in said second direction for retracting into said slot so as to permit removal of said second shackle connecting member from said lock casing via said second shackle hole. 3. The shackle lock as claimed in claim 1, wherein said latch member engages said first channel-confining wall upon movement of said lock core in said first direction when said latch member is positioned at said unlocking position so as to prevent removal of said lock core from said lock casing via said lock core opening, said latch member being accessible by the tool which is inserted into said first channel via said first shackle chamber and said first shackle hole when said first shackle connecting member is removed from said first shackle hole, and being adapted to be actuated by the tool for disengaging from said first channel-confining wall in order to be removed from said lock casing via said lock core opening. 4. The shackle lock as claimed in claim 3, wherein said latch member includes a latch base which projects from said lock core in said lock core chamber in said first direction, which is rotatable when said lock core is operated via the key, and which is formed with a cavity, said latch member further including a latch body mounted on said latch base and extending into said cavity, and a biasing spring received in said cavity for biasing said latch body to extend out of said cavity and to project from said latch base into said first shackle chamber when said latch member is positioned at said locking position, said latch body being adapted to be depressed in said fourth direction by the tool against biasing action of said biasing spring for retracting into said cavity to permit removal of said lock core from said lock casing. 5. The shackle lock as claimed in claim 1, wherein said first shackle connecting member of said shackle unit is formed with a stud that extends into said second channel when said first shackle connecting member extends into said first shackle chamber, said retaining member on said second shackle connecting member being formed with a recess for receiving said stud when said first and second shackle connecting members are inserted into said first and second shackle chambers, respectively. 6. The shackle lock as claimed in claim 1, wherein said first shackle connecting member has two opposite flat faces, said locking groove extending between said flat faces, said latch body further including two opposite guide wings that project from said engaging end of said latch body and that are in sliding contact with said flat faces, respectively. 7. The shackle lock as claimed in claim 1, further comprising a resilient lock protective sleeve which includes:a sleeve body sleeved on said lock casing, said sleeve body having an open end that permits insertion of said lock casing thereinto, and two access openings aligned respectively with said first and second shackle holes in said lock casing to permit extension of said first and second shackle connecting membe rs of said shackle unit therethrough; anda cover flap hinged to said sleeve body at said open end, said cover flap being pivotable toward said lock core opening in said lock casing for covering the same, and away from said lock core opening to permit access to said lock core via said lock core opening. 8. The shackle lock as claimed in claim 7, wherein said cover flap is formed with a plug which is inserted into said keypassage when said cover flap covers said lock core opening. 9. A shackle lock comprising:a seamless lock casing having a lock core chamber, a lock core opening for access to said lock core chamber and aligned with said lock core chamber in a first direction, a first shackle chamber, a first shackle hole for access to said first shackle chamber and aligned with said first shackle chamber in a second direction parallel to the first direction, a second shackle chamber, a second shackle hole for access to said second shackle chamber and aligned with said second shackle chamber in a third direction transverse to the second direction, a first channel confined by a first channel-confining wall and extending in a fourth direction transverse to said first and second directions for communicating said lock core chamber and said first shackle chamber, and a second channel confined by a second channel-confining wall and extending in the second direction for communicating said first shackle chamber and said second shackle chamber;a lock core received in said lock core chamber via said lock core opening and having a latch member and a keypassage that is exposed from said lock core opening and that is adapted to receive a key for moving said latch member between a locking position, in which said latch member extends through said first channel and projects into said first shackle chamber, and an unlocking position, in which said latch member is moved out of said first shackle chamber; anda shackle unit including first and second shackle connecting members and a flexible elongated shackle portion with two opposite ends connected respectively to said first and second shackle connecting members, said first shackle connecting member being extendible into said first shackle chamber via said first shackle hole and being formed with a locking groove for engaging said latch member when said latch member is moved to the locking position, said second shackle connecting member being extendible into said second shackle chamber via said second shackle hole and being provided with a retaining member that extends into said second channel and that engages said second channel-confining wall upon movement of said second shackle connecting member in said third direction so as to retain said second shackle connecting member in said lock casing, said locking groove in said first shackle connecting member being disengaged from said latch member when said latch member is moved to the unlocking position, thereby permitting removal of said first shackle connecting member from said lock casing via said first shackle hole, said retaining member on said second shackle connecting member being accessible by means of a tool which is inserted into said second channel via said first shackle chamber and said first shackle hole when said first shackle connecting member is removed from said first shackle hole and being adapted to be actuated by the tool for disengaging from said second channel-confining wall in order to be removed from said lock casing via said second shackle hole;wherein said second shackle connecting member is formed with a shackle cavity and a first screw hole in communication with said shackle cavity, said retaining member including a retaining body formed with a second screw hole, said shackle lock further comprising a screw nut fixed in said shackle cavity, and a screw bolt extending through said first and second screw holes and threadedly engaging said screw nut so as to secure said retaining member to said second shackle connecting member , said screw bolt being accessible via said first shackle chamber and said first shackle hole when said first shackle connecting member is removed from said locking case, thereby permitting disengagement of said retaining member from said second shackle connecting member and removal of said second shackle connecting member from said locking case. 10. The shackle lock as claimed in claim 9, wherein said second shackle connecting member is further formed with a first notch adjacent to said shackle cavity and extending in said second direction, said retaining body being further formed with a second notch that meshes with said first notch when said retaining member is secured to said second shackle connecting member. 11. The shackle lock as claimed in claim 10, wherein said second shackle connecting member is further formed with two opposite guides extending in said second direction, said retaining body having two opposite legs extending from a periphery of said second screw hole in said second direction and formed with guiding grooves that slidably engage said guides, respectively. 12. The shackle lock as claimed in claim 11, wherein said retaining member further includes a stud that projects from said retaining body in said second direction, said first shackle connecting member being formed with a recess for receiving said stud when said first and second shackle connecting members are inserted into said first and second shackle chambers, respectively. 13. A shackle lock comprising:a seamless lock casing having a lock core chamber, a lock core opening for access to said lock core chamber and aligned with said lock core chamber in a first direction, a first shackle chamber, a first shackle hole for access to said first shackle chamber and aligned with said first shackle chamber in a second direction parallel to the first direction, a second shackle chamber, a second shackle hole for access to said second shackle chamber and aligned with said second shackle chamber in a third direction transverse to the second direction, a first channel confined by a first channel-confining wall and extending in a fourth direction transverse to said first and second directions for communicating said lock core chamber and said first shackle chamber, and a second channel confined by a second channel-confining wall and extending in the second direction for communicating said first shackle chamber and said second shackle chamber;a lock core received in said lock core chamber via said lock core opening and having a latch member and a keypassage that is exposed from said lock core opening and that is adapted to receive a key for moving said latch member between a locking position, in which said latch member extends through said first channel and projects into said first shackle chamber, and an unlocking position, in which said latch member is moved out of said first shackle chamber; anda shackle unit including first and second shackle connecting members and a flexible elongated shackle portion with two opposite ends connected respectively to said first and second shackle connecting members, said first shackle connecting member being extendible into said first shackle chamber via said first shackle hole and being formed with a locking groove for engaging said latch member when said latch member is moved to the locking position, said second shackle connecting member being extendible into said second shackle chamber via said second shackle hole and being provided with a retaining member that extends into said second channel and that engages said second channel-confining wall upon movement of said second shackle connecting member in said third direction so as to retain said second shackle connecting member in said lock casing, said locking groove in said first shackle connecting member being disengaged from said latch member when said latch member is moved to the unlocking position, thereby permitting removal of said first shackle connecting member from said lock casing via said first shackle hole, said retaining member on said second shackle connecting member being accessible by means of a tool which is inserted into said second channel via said first shackle chamber and said first shackle hole when said first shackle connecting member is removed from said first shackle hole and being adapted to be actuated by the tool for disengaging from said second channel-confining wall in order to be removed from said lock casing via said second shackle hole;wherein each of said first and second shackle connecting members is formed with an insertion hole which is confined by a hole-confining wall and which receives a respective one of said opposite ends of said elongated shackle portion, said shackle unit further including two tubular members disposed in said insertion holes in said first and second shackle connecting members and sleeved on said opposite ends of said elongated shackle portion, respectively, each of said tubular member including a plurality of grooved arcuate parts which are connected in such a manner that two of adjacent ones of said arcuate parts are wedged to each other so as to form a plurality of arcuate inner and outer grooves in said tubular member and so as to permit engagement among said tubular members, said opposite ends of said elongated shackle portion, and said hole-confining walls of said first and second shackle connecting members when said tubular members, said opposite ends of said elongated shackle portion, and said hole-confining walls of said first and second shackle connecting members are compressed and are deformed, said tubular members being made from a metal alloy and having a hardness that is greater than that of said first and second shackle connecting members so as to protect said first and second shackle connecting members from sabotage. 14. The shackle lock as claimed in claim 13, wherein said shackle unit further includes a plurality of metal sleeves that are sleeved on said elongated shackle portion between said tubular members, each of said metal sleeves having a generally semi-spherical inserting end and a generally semi-spherical receiving hole opposite to said inserting end and having a shape conforming to that of said inserting end, said inserting end of each of said metal sleeves being inserted into said receiving hole of an adjacent one of said metal sleeves so as to permit engagement between each two adjacent ones of said metal sleeves and engagement between each of said metal sleeves and said elongated shackle portion when said metal sleeves and said elongated shackle portion are compressed and are deformed and so as to protect said elongated shackle portion from sabotage. 15. The shackle lock as claimed in claim 14, wherein said elongated shackle portion is in the form of a rope. 16. The shackle lock as claimed in claim 14, wherein said elongated shackle portion is in the form of a chain. 17. A shackle lock comprising:a seamless lock casing having a lock core chamber, a lock core opening for access to said lock core chamber and aligned with said lock core chamber in a first direction, a first shackle chamber, a first shackle hole for access to said first shackle chamber and aligned with said first shackle chamber in a second direction parallel to the first direction, a second shackle chamber, a second shackle hole for access to said second shackle chamber and aligned with said second shackle chamber in a third direction transverse to the second direction, a first channel confined by a first channel-confining wall and extending in a fourth direction transverse to said first and second directions for communicating said lock core chamber and said first shackle chamber, and a second channel confined by a second channel-confining wall and extending in the second direction for communicating said first shackle chamber and said second shackle chamber;a lock core received in said lock core chamber via said lock core opening and having a latch member and a keypassage that is exposed from said lock core opening and that is adapted to receive a key for moving said latch member between a locking position, in which said latch member extends through said first channel and projects into said first shackle chamber, and an unlocking position, in which said latch member is moved out of said first shackle chamber; anda shackle unit including first and second shackle connecting members and a flexible elongated shackle portion with two opposite ends connected respectively to said first and second shackle connecting members, said first shackle connecting member being extendible into said first shackle chamber via said first shackle hole and being formed with a locking groove for engaging said latch member when said latch member is moved to the locking position, said second shackle connecting member being extendible into said second shackle chamber via said second shackle hole and being provided with a retaining member that extends into said second channel and that engages said second channel-confining wall upon movement of said second shackle connecting member in said third direction so as to retain said second shackle connecting member in said lock casing, said locking groove in said first shackle connecting member being disengaged from said latch member when said latch member is moved to the unlocking position, thereby permitting removal of said first shackle connecting member from said lock casing via said first shackle hole, said retaining member on said second shackle connecting member being accessible by means of a tool which is inserted into said second channel via said first shackle chamber and said first shackle hole when said first shackle connecting member is removed from said first shackle hole and being adapted to be actuated by the tool for disengaging from said second channel-confining wall in order to be removed from said lock casing via said second shackle hole; anda shackle lock comprising a resilient lock protective sleeve which includes:a hollow sleeve body sleeved on said lock casing, said sleeve body having an open end that permits insertion of said lock casing thereinto, and a front wall that is opposite to said open end and that is formed with an access opening aligned with said lock core opening so as to permit extension of the key therethrough, and a slot adjacent to said access opening;a supporting frame mounted in said sleeve body around said access opening and said slot and confronting said front wall;a sliding member mounted slidably in said supporting frame, formed with a central opening, and slidable in a transverse direction relative to said lock core between a first position, in which, said central opening is aligned with said access opening and said lock core opening, and a second portion, in which, said central opening is offset from said access opening;an urging member interconnecting said sliding member and said supporting frame so as to urge said sliding member to move from said first position to said second position;a blocking member mounted movably on said sliding member and having a front end that projects through said central opening, said blocking member being movable in an axial direction relative to said lock core between a first engaging position, in which, said front end of said blocking member projects into said access opening and engages a periphery of said access opening so as to prevent movement of said sliding member and so as to close said central opening and prevent access of said lock core opening, and a first disengaging position, in which said front end of said blocking member moves away and disengages from said periphery of said access opening so as to permit co-movement of said sliding member and said blocking member in said transverse direction to said second position, which, in turn, permits access of said lock core opening via said central opening and said access opening;an operating lever that projects from said sl iding member through said slot to an exterior of said sleeve body for moving said sliding member in said transverse direction; anda biasing member for urging said blocking member to move from said first disengaging position to said first engaging position. 18. The shackle lock as claimed in claim 17, wherein said lock protective sleeve further includes a spring mounting plate mounted on said sliding member and formed with a first spring-mounting recess, a pair of shallow retaining grooves disposed diametrically around said first spring-mounting recess, a pair of docking slots disposed diametrically around said first spring-mounting recess and transverse to a line passing through said shallow retaining grooves, and a stopper disposed diametrically around said first spring-mounting recess, said blocking member having a cylindrical part defining said front end and extending movably through said central opening in said sliding member, a second spring-mounting recess formed in said cylindrical part and aligned with said first spring-mounting recess, a pair of diametrically disposed limiting protrusions projecting from said cylindrical part toward said spring mounting plate, a pair of circular retaining tongues respectively projecting from said limiting protrusions to releasably engage said shallow retaining grooves in said spring mounting plate, and a coded protrusion projecting from said cylindrical part in a direction opposite to said limiting protrusions toward said access opening in said sleeve body, said biasing member being in the form of a coil spring that is disposed between and that extends into said first and second spring-mounting recesses to abut against said cylindrical part and said spring mounting plate, said blocking member being rotatable relative to said spring-mounting plate between a second engaging position, in which, said retaining tongues respectively engage said shallow retaining grooves so as to prevent said axial movement of said blocking member, and a second disengaging position, in which, said retaining tongues move away from said shallow retaining grooves and said limiting protrusions are aligned with said docking slots so as to permit axial movement of said blocking member from said first engaging position to said first disengaging position when said coded protrusion is pushed via the key, said stoppers being engageable with said limiting protrusions so as to limit said blocking member to rotate between said second engaging position and said second disengaging position.