EP0212468A1 - Serrure à cylindre - Google Patents

Serrure à cylindre Download PDF

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Publication number
EP0212468A1
EP0212468A1 EP86110919A EP86110919A EP0212468A1 EP 0212468 A1 EP0212468 A1 EP 0212468A1 EP 86110919 A EP86110919 A EP 86110919A EP 86110919 A EP86110919 A EP 86110919A EP 0212468 A1 EP0212468 A1 EP 0212468A1
Authority
EP
European Patent Office
Prior art keywords
cylinder
afore
mentioned
main cylinder
operational member
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP86110919A
Other languages
German (de)
English (en)
Inventor
Tomio Oota
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
YUUKI SANGYO CO Ltd
Original Assignee
YUUKI SANGYO CO Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by YUUKI SANGYO CO Ltd filed Critical YUUKI SANGYO CO Ltd
Publication of EP0212468A1 publication Critical patent/EP0212468A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/04—Devices for coupling the turning cylinder of a single or a double cylinder lock with the bolt operating member

Definitions

  • the present invention relates to a cylinder lock , more specifically to the cylinder lock which is constructed to avoid being broken even under an abnormal situation where the cylinder is forced to be rotated by what is excluded from a regular lock.
  • the cylinder lock is better in safety among various kinds of locks and is widely used as a door lock for a car and a house, recently a strong tool and the like such as a screwdriver are inserted into a keyhole to force the cylinder to be rotated so that the cylinder is broken, whereby such cases as pilferage and vicious harassment are frequently found.
  • the present invention provides a cylinder lock which can solve the afore-mentioned conventional problems and its main purpose is to provide the cylinder lock which, when its cylinder is forced to be rotated by using the key other than the regular key and a tool such as screwdriver and the like, it is not released by an idle rotation of the cylinder,and is not broken.
  • FIGs. 1 - 4 illustrate the first embodiment of the present invention, showing a radial pin type cylinder lock.
  • 1 is a cylindrical casing
  • 2 is the main cylinder, into which the predetermined key (not shown) is held in an insertional manner.
  • 3 is an intermediate cylinder
  • 4 is an operating member
  • the main cylinder 2 is supported in the casing 1 such that said main cylinder may be only rotated, while its enlarged portion on the front end 2a is under state where such a portion 2a is held in an enlarged hole part 5a of a front wall part 5 of the casing 1.
  • the intermediate cylinder 3 is fitted outwardly around the main cylinder 2 such that said intermediate cylinder 3 may be rotated, the axial motion of its front and rear ends being impeded by the front wall part 5 of the casing 1 and a snap ring 6 fixed to the internal periphery of said casing 1.
  • a plurality of groups of radial type pin tumblers are held by way of coil springs 7c respectively in the intermediate cylinder 3, usually each of the drivers 7b of the pin tumblers 7 is interposed between the intermediate cylinder 3 and the main cylinder 2, by which said main cylinder 2 and the intermediate cylinder 3 are integrally rotated, and if the regular key is held in the keyhole 2b of the main cylinder 2 in an insertional manner, the boundary part between the pin 7a and the driver 7b in each of pin tumblers 7 comes to be located on the external peripheral surface of the main cylinder 2, whereby a relative rotation of the main cylinder 2 and the intermediate cylinder 3 is enabled.
  • the afore-mentioned plurality of groups of pin tumblers 7, are disposed axially in line with one another at one place of the circumferential direction.
  • Rod inserting holes 8 which penetrate axially the intermediate cylinder 3 are provided in three places spaced in a circumferential direction of said cylinder 3, a pushing rod 9 is slidably inserted into each of the holes 8, and each of the pushing rods 9 is always forced to be directed to the front side by coil spring 10.
  • the front end part of each of pushing rod 9 forms a cam head 11 which is approximately conically-trapezoid-shaped, whereas as seen apparently from Figs.
  • cam faces possessing a recessed part 12 of the trapezoid in section are annularly formed on (three) positions corresponding to the rod inserting holes 8, under the arrangement of which the cam head 11 being forced to be extruded from each of the holes 8 is usually in mesh with the recessed part 12.
  • the afore-mentioned operational member 4 comprises a circularly-cylindrical-wall-part 4a and an alligator part 4b, directed inwardly, which is extruded from the front end of the circularly-cylindrical-wall-part 4a, while the circularly-cylindrical-wall-part 4a is fitted around the internal side of the casing 1 such that said wall part 4a may be not only rotatable but axially slidable, the shaft hole on the center of the alligator part 4b is idly fitted in a cylinder shaft 13 being concentrically extruded from the rear end of the main cylinder 2, and as shown in Fig.
  • parts to be held for being moved 15 into which transmission projections 14 being extruded from both sides in a diametral direction of a root of the cylinder shaft 13 are held are formed around the afore-mentioned shaft hole.
  • 16 are disc plates which are in fitted mesh with the deeper sides of the afore-mentioned transmission projections 14 and 14, thereby being fixed to the main cylinder 2, and the disc plate 16 is provided with holes into which rods 17 are fitted, at the positions corresponding to the three rod inserting holes 8, which are provided in the afore-mentioned intermediate cylinder 3.
  • the 20 is a platelike piece for turning on substantially the key under control of the operational member 4, disposed circumferentially on the rear part in the casing 1, and has slits 4c and 4c which are provided on both the sides of a circumferential direction of circularly-cylindrical-wall-part 4a of the afore-mentioned operational member 4 gotten into its both ends such that these slits 4c and 4c may be slidable together with the operational member 4.
  • a rotational operation by the afore-mentioned operational member 4 in the case of using the regular key will cause the piece for turning on the key 20 to be rotated with the shaft line of the main cylinder 2 as a center, thereby turning on the key and unlocking.
  • the piece for turning on the key 20 is obstructed in its axial motion by the rear end of the cylinder shaft 13 and snap rings 21 mounted to the casing 1.
  • the operational member 4 causes it to be connected to the main cylinder 2 with a possibility of being rotated integrally to the main cylinder 2 so that the operational member 4 is located to the position where the parts to be held for being moved 15 can be held in the transmission projections 14, whereby , in response to a rotation of the main cylinder 2 caused by using the regular key, the operational member 4 is rotated to take charge of performing the operations such as locking and unlocking, but, when the main cylinder 2 is adapted to be rotated without using the regular key and the intermediate cylinder 3 is rotated together with the main cylinder 2, the resulted situation is that a means of releasing the connection which is actuated by a rotation of said intermediate cylinder 3 permits the connection between the main cylinder 2 and the operational member 4 to be released.
  • the means of releasing the connection comprises the pushing rod 9 which is inserted into the rod inserting hole 8 of the intermediate cylinder 3 and forced to be pressurized forward by the coil spring 10 so that the cam head 11 on its front end, being extruded from the front end face of the intermediate cylinder 3, may be held in the recessed part 12 on the front end wall 5 of the casing 1, a rotation of the intermediate cylinder 3 allows the cam head 11 to escape from the recessed part 12 so that at the same time when the pushing rod 9 is pressurized backward against the coil spring 10, the rear end of the pushing rod 9 is extruded from the rear end face of the intermediate cylinder 3, penetrating a holding hole 17 of the disc plate 16, and its top end pushes and moves the operational member 4.
  • Such a pushing and moving action of the pushing rod 9 adapts the operational member 4 to be moved to the position, as shown in Fig. 4, where the parts to be held for being moved 15 cannot be held in the transmission projections 14 on the cylinder shaft 13, thereby releasing the connection between the main cylinder 2 and the operational member 4.
  • a detecting sensor 22 which detects an actuation of the means of releasing the connection by a rotation of the intermediate cylinder 3 is provided.
  • the detecting sensor 22 for example, a proximity sensor, a photoelectric sensor, or mechanical limit sensor and the like are used to detect a using of the key except for the regular key, thereby issuing an alarm.
  • electric cable or wireless unit may allow the detecting signal to be informed to a distant place, the resulted possibility being that an alarm lamp and buzzer are actuated. It is also accepted to provide the detecting sensor 22 to detect an actuation of the intermediate cylinder 3 or the pushing rod 9 and the like ,
  • Figs. 1 -4 23 stands for a frame for mounting the cylinder lock which is fixed to the casing 1.
  • the cylinder lock adopting the afore-mentioned construction releases the combination between the main cylinder 2 and the intermediate cylinder 3 made by the pin tumblers 7, thereby enabling the main cylinder 2 to be rotated independently. For this reason, a rotation of the main cylinder 2 permits the operational member 4 to be rotated in an interlocking manner so that the locking and the unlocking are performed by way of the piece for turning on the key.
  • each of the pu-shing rods 9 is moved backward by an action of the cam means, and pushes and moves the operational member 4 backward, resulted in the state where the transmission projections 14 on the side of the main cylinder 2 and the parts to be held for being moved 15 of the operational member 4 cannot be held in each other.
  • connection between the main cylinder 2 and the operational cylinder 4 is released, even commencement of rotating independently the main cylinder 2 by means of inserting the regular key into the keyhole 2b leads to an inability of the operations such as locking or unlocking, and, as found in the present embodiment, a restoration is made from rushing in to be held of the rear end of the pushing rod 9 in the hole into which the rod is inserted 17 of the disc plate 16 integral to the main cylinder 2 at an rotation of the intermediate cylinder 3 to the original position where the pushing rod 9, located correspondingly to the predetermined rotational position, causes a rotation of the main cylinder 2 made by using the regular key to be interlocked with a rotation of the intermdiate cylinder 3, thereby returning the means of releasing the connection to the position where such a means is not actuated so that it is possible to restore the main cylinder 2 and the operational member 4 all together to the original state where they are connected to each other.
  • Figs. 5 - 9 illustrating the second embodiment according to the present invention, shows an axial pin type cylinder lock.
  • the cylinder lock of the second embodiment its members which are identical or similar functionally to the constituent members of the cylinder lock of the first embodiment are indicated by the number of adding 100 to the number which stands for the constituent member of the first embodiment.
  • 101 is the circularly-cylindrical casing
  • 102 is the main cylinder
  • 103 is the intermediate cylinder
  • 104 is the operational member.
  • the main cylinder 102 comprises the enlarged portion 102A, the reduced portion 102B, the front cylinder shaft 102C and the rear cylinder shaft 113 which are provided integrally to one another in a coaxial manner, the enlarged portion 102A is inserted into the casing 101 under the state of being rotatably supported in the front end side of the shaft hole 101a of the casing 101, the intermediate cylinder 103 having the same external diameter as that of the afore-mentioned enlarged portion 102A is rotatably fitted around the reduced portion 102B of the main cylinder 102, and the intermdiate cylinder 103 is obstructed its axial motion by the side face of the enlarged portion 102A and the snap rings 106 mounted to the casing 101.
  • the front cylinder shaft 102C rushes in the opening hole on the front end side 101b of the casing 101, its front end face shares approximately the same sa7,rface with the front end face of the casing 101, and the internal peripheral surface of the opening hole 101b has its front side provided with an internally-directed flange 24.
  • the afore-mentioned intermediate cylinder 103 holds by way of the coil springs 107c a plurality of groups (e.g.
  • each of the pins 107a of the pin tumbler 107 penetrates axially the enlarged portion of the main cylinder 102, being extruded to the side of the opening hole on the front end side.
  • the driver 107b of each of the pin tumblers 107 is interposed between the enlarged portion 102A of the main cylinder 102 and the intermediate cylinder 103, thereby making an integral rotation of both the cylinder 102 and 103 possible, and an insertion of such a regular key 25 as shown in the right side of Fig.
  • the circularly-cylindrical wall 26 of the key 25 has its external surface side and internal surface side provided with a convex piece to be held 28a and a covex part to be held 28b which are used for indexing, and while the recessed part to be held 29a capable of having the afore-mentioned convex piece to be held 28a held therein is provided on the internals-directed flange 24 of the casing 101, the recessed part to be held 29b capable of having the convex part to be held 28b held therein is provided on the front cylinder shaft 102C of the main cylinder 102.
  • a circularly-cylindrical movable member 30 is axially slidably fitted onto the rear part of the reduced portion 102B of the main cylinder 102 such that its both front and rear end faces touch the intermediate cylinder 103 and the operational member 104.
  • the movable member 30 has both sides of its diametral direction provided with guide pieces 30a and 30a respectively, and these guide pieces 30a and 30a are. fitted into guide slits 31 and 31 which are provided on the rear part of the casing 101, being axially extended.
  • two places in a diametral direction of the front end face of the movable member 30 are provided with such trapezoidal cam following projections 111 as shown in Fig. 9, and the rear end face of the intermediate cylinder 103 forms an annular cam face equipped with a trapezoidal recessed part 112 into which the afore-mentioned cam following projection 111 is fitted.
  • the afore-mentioned operational member 104 is idly fitted around the rear cylinder shaft 113 of the main cylinder 102, and the parts to be held for being moved 115 into which the transmission projections 114 being provided on both the sides of the diametral direction of the root of said shaft 113 are held are formed on the shaft hole thereof.
  • 32 is a stopper which is provided on the rear end of the casing 101, and is fitted into the peripheral notched recessed part 33 of the operational member 104, thereby limiting the angle of rotational operation of said operational member 104 to the predetermined angle.
  • the dished springs which force the operational member 104 to be pressurized forward and holds the operational member 104 at the position where the parts to be held for being moved 115 can be held in the transmission projections 114.
  • it causes the operational member 104 to be connected to the main cylinder 102 such that they may be rotated integrally to each other that the parts to be held for being moved 115 are located at the position where such parts to be held 115 can be held around the transmission projections 114, so, in response to a rotation of the main cylinder 102 made by using the regular key, the operational member is rotated to take charge of operations such as locking and unlocking, and when the main cylinder 102 is rotated without using the regular key 25 and concurrentlythe intermediate cylinder 103 is rotated, the resulting situation is that the means of releasing the connection which is actuated by a rotation of said intermediate cylinder 103 allows the main cylinder 102 and the operational member 104 to release their connection.
  • the means of releasing the connection comprises the movable member 30 which is axially movably disposed on the main cylinder 102 between the intermediate cylinder 103 and the operational member 104 as referred to above and a cam means (cam following projection 111 and the trapezoidal recessed part 112) which is provided on the face which is oppositely interposed between the movable member 30 and the intermediate cylinder 103, and executes the arrangement in which a rotation of the intermediate cylinder 103 may cause the projection 111 of the cam means to escape from the recessed part 112 and the movable member 30 to be pushed and moved backward against the dished springs 118, whereby the parts to be held for being moved 115. and the transmission projections 114 cannot be held in one another.
  • the cylinder lock possessing the afore-mentioned construction has the combination between the main cylinder 102 and the intermediate cylinder 103 by the pin t:unblars 107, released, so a commencement of rotating the main cylinder 102 adapts the operational member 104 to be rotated by way of the transmission projections 114 and the parts to be held for being moved 115, thereby performing the operations such as locking and unlocking.
  • the requirement lies in an insertidn of the regular key 25 into the keyhole 102b, when the main cylinder 102 is returned to such a regular position as shown in Fig. 6 under the state where while the top end of the key 25 is held in the inlet part of the keyhole 102b, the top end of the convex part to be held 28b is adapted to be held in the recessed part to be held 29b of the front cylinder shaft 102C.
  • the detecting sensor which detects the actuation of the means of releasing the connection may be adequately provided.
  • Figs. 10 - 12 illustrate the third embodiment according to the present invention, and shows the same axia. l _ pin type cylinder lock as the cylinder lock of the second embodiment.
  • the constituent members of the cylinder lock of the second embodiment which are functionally identical or similar to those of the cylinder lock of the first embodiment are indicated by the number of adding 200 to the number which stands for the constituent members of the first embodiment.
  • the main cylinder 202 comprises the enlarged shaft 202A, the reduced shaft 202B, and the front cylinder shaft 202C which are integrally provided in a coaxial manner, the enlarged shaft 202A is inserted into the casing 201 under the state where said enlarged shaft 202A is rotatably supported in the front end side of the shaft hole 201a of the circularly-cylindrical casing 201, the intermediate cylinder 203 .
  • the front cylinder shaft 202C rushes in the opening hole on the front end side of the casing 201, its front end face shares approximately the same face with the front end face of the casing 201, and the internal peripheral surface of the opening hole 201b has its front side provided with the internally-directed flange 34.
  • the afore-mentioned disc plate 216 provides its central part with the shaft hole 216a, its both sides in diametral direction possess pieces to be held 216b and 216b, the shaft hole 216a is idly fitted around the reduced shaft 202B of the main cylinder 202, and each of pieces to be held 216b is held is fixed in the holding groove 35 on the rear end of the casing 201.
  • the pin holes 208 penetrate axially three circumferential places in the disc place 216, the pushing pin 209 is inserted into each of the holes 208, and the rear end face of the intermediate cylinder 203 forms an annular cam face equipped with the trapezoidal recessed part 212 into which the top end of the pushing pin 209 is fitted.
  • Operational member 204 is idly fitted onto the reduced shaft 202B of the main cylinder 202, and the part to be held for being moved 215 into which the transmission projections 214 being provided on both the sides of a diametral direction of the reduced shaft 202B are held is formed in the shaft hole of the operational member 204. For this reason; the operational member 204 is forced to be pressurized forward by the dished springs and is pressurized to face the rear face of the disc plate 216 at the position where the part to be held for being moved 215 and the transmission projections 214 can be held in one another.
  • the operational member 204 is located to the position where the part to be held for being moved 215 can be held in the transmission projections 214, it is connected to the main cylinder 202 such that they can be integrally rotated. For this reason, in response to a rotation of the main cylinder 202 by using the regular key, the operational member 204 is rotated to take charge of performing the operations such as locking and unlocking.
  • the means of releasing the connection which is actuated by a rotation of said intermediate cylinder 203 adapts the connection between the main cylinder 202 and the operational member 204 to be released.
  • the means of releasing the connection includes the pushing pins 209 which are inserted into the pin holes 208 of the disc plate 216 interposed between the intermediate cylinder 203 and the operational member 204 and the cam face located on the rear end face of the intermediate cylinder 203 opposite to the disc plate 216 and executes the arrangement in which a rotation of the intermediate cylinder 203 causes the front end of the pushing pins 209 to escape from the recessed parts 212 on the cam face, by which the rear end of the pins 209 is extruded backward from the holes 208 to push backward the operational member 204, whereby the part to be held for being moved 215 and the transmission projections 214 cannot be held in one another.
  • the detecting sensor which detects the actuation of the afore-mentioned means of releasing the connection may be provided.
  • Figs. 13 & 14 illustrate one example of a means of restoring the means of releasing the connection to the original state, in the case where a wrong use and the like selected at the time of using the cylinder lock of the afore-mentioned third embodiment adapt the mean of releasing the connection to be left in the actuating state.
  • the resulted situation is that if the regular key causes the main cylinder 202 to be rotated, it rotates the intermediate cylinder 203 at the same time, and the rotation of the intermediate cylinder 203 enables the mean of releasing the connection to be returned to the original state.
  • Figs. 15 - 18 illustrate the fourth embodiment according to the present embodiment and show similarly to the first embodiment the radial type cylinder lock.
  • the members of the fourth embodiment which are functionally identical or similar to the constituent members of the cylinder lock of the first embodiment are indicated by the number of adding 300 to the number which stands for the constituent member of the first embodiment.
  • the main cylinder 302 is only rotatably supported in the casing 301 under the state where its front enlarged portion 302a is held in ..the hole 305a in the front end wall 305 of the circularly-cylindrical casing 301.
  • the intermediate cylinder 303 is rotatably fitted around the main cylinder 302, and its both front and rear ends are slidably supported by the front end wall 305 of the casing 301 and the projections to be held 40 which are provided on the adequate parts of the external peripheral surface of the main cylinder 302, whereby the intermediate cylinder 303 is obstructed its axial motion.
  • a projection to be held 303a which are axially and integrally provided on one side of the external peripheral surface of the intermediate cylinder 303 is -fitted into the notch groove 41a of the C-shaped movable member 41 such that said projection to be held 303a is relatively slidable in an axial direction.
  • the cam following projections 311 and 311 are provided on both the sides of the diametral direction of the front end face of the C-shaped movable member 41, and, on the other hand, the rear end face of the front end wall 305 of the casing opposite to the front end face of said movable member 41 forms the cam face equipped with the trapezoidal recessed parts 312 and 312 into which the afore-mentioned cam following projections 311 and 311 are fitted.
  • a plurality of groups of radial type pin tumblers 307 lie, and, usually, these pin tumblers 307, combine the main cylinder 302 with the intermediate cylinder 303 to lead them to be able to be integrally rotated, a use of the regular key permitting the combination between both the cylinders 302 and 303 to be released.
  • the operational member 304 formed to get circularly-cylindrical- shaped, is inwardly fitted in the rear side of the casing 301 with a possibility not only of being rotated but of being axially slidable, and the front end in the internal peripheral surface of the circularly-cylindrical operational member 304 forms the part to be held for being moved 315 into which the projections to be held 40 being provided on the external peripheral surface of the main cylinder 302 are fitted.
  • the dished springs 308 are mounted between the snap ring 319 mounted to the cylinder shaft 313 and the operational member 304, force the operational member 304 to be pressurized forward, and hold the same at the position where the afore-mentioned part to be held for being moved 315 and the projections to be held 40 can be held in one another.
  • the piece for turning on the key 320 is mounted to the rear end of the casing 301 under the state where said piece for turning on the key 320 is fitted into the slits 304c and 304c which are provided on both the sides of the diametral direction of the rear end of the operational member 304, and an operation of rotating the operational member 304 may allow said piece for turning on the key 320 to be rotated with the shaft line of the main cylinder 302 as a center. As shown in Fig.
  • the projection to be held 40 is formed to get fan-shaped in section so that it may correspond to the sectional shape of the notch groove 41a of the movable member 41, and is adapted to be held in the notch groove 41a at the time of the backward motion of the movable member 41 accompanying the rotation of the intermediate cylinder 303.
  • the means of releasing the connection comprises the projection to be held 303a, the circularly-cylindrical movable member 41, approximately of C-shape in section, which is axially slidably fitted by way of the notch groove 41a around the intermediate cylinder 303, the cam following projection 311 which is provided on the front end face of the movable member 41, the cam face of the casing 301 opposite to the cam following projection 311, and the dished springs 308 which force the movable member 41 by way of the operational member 304 to be pressurized in a direction opposite to the afore-mentioned cam face and execute the arrangement in which a rotation of the intermediate cylinder 303 causes the cam following projection 311 to escape from the recessed part 312 on the cam face so that the movable member 41 is pressurized backward, thereby releasing the part to be held for being moved 315 of the operational member 304 from the position of being held in the projection to be held 40 of the main cylinder 302.
  • Fig. 18 illustrate the state where the main cylinder 302 is rotated by about 90° from such a state as shown in Fig. 15 together with the intermediate cylinder 303
  • the afore-mentioned projection to be held 40 is provided on the mounting member 42 which is inserted in the hole penetrating the main cylinder 302 in a diametral direction.
  • the detecting sensor which detects the actuation of the afore-mentioned means of releasing the connection may be provided.
  • Figs. 19 - 21 illustrate the fifth embodiment according to the present invention, and this is the embodiment of the wafer type cylinder lock.
  • Figs. 19 and 20 longitudinal sectional views taken sectionally from the position where each of these figures illustrates the cylinder lock under the usual state to be shifted 90 by 90 0 , 401 is the casing, 402 is the main cylinder, 403 is the intermediate cylinder, and 404 is the operational member.
  • a plurality of pieces to be held 407 which the regular key causes to be moved inwardly from the holding grooves 400, are axially disposed on the main cylinder 402, while they are adequately spaced, and, usually, fitted into the holding grooves 400, axially spaced, which are provided on the opposite sides of the diametral direction of the internal peripheral surface of the intermediate cylinder 403.
  • 440 is a torsion spring which holds the main cylinder 402 at the neutral position (the state where the pieces to be held 407 are fitted in the holding grooves 400) with respect to the intermediate cylinder 403, is idly fitted in an annular groove 441 in the external peripheral surface of the intermediate cylinder 403, and its both ends 440a and 440b are inwardly folded to face notched end faces 403a which are formed on both the sides of the diametral direction of the intermediate cylinder 403 and the notched end faces 402a which are formed on both the sides of the diametral direction of the main cylinder 402 such that these notched end faces 403a and 402a are adjacent to one another.
  • the means of releasing the connection between the main cylinder 402 and the operational member 404 comprises a plurality of trapezoidal cam following projections 411 which are provided on the front end of the intermediate cylinder 403, the cam face 412 which is provided in the casing 401, and the trapezoidal recessed part 412a. 418 is dished springs which are mounted to the shaft 413 of the main cylinder 402.
  • an action of the means of releasing the connection made in response to an rotation of -the intermediate cylinder 403 causes the intermediate cylinder 403 to be moved in an arrow direction of the same figure, thereby releasing the connection between the main cylinder 402 and the operational member 404, so that the operations such as locking and unlocking become impssible.
  • a rotational force imparted to the main cylinder allows the intermediate cylinder to be rotated together with the main cylinder, such a rotation of the intermediate cylinder actuates the means of releasing the connection, and the connection between the main cylinder and the operational member is released, whereby the main cylinder is only idly rotated together with the intermediate cylinder so that the operation of unlocking becomes impossible.
  • the cylinder lock according to the present invention since, even if the wrong tool except for the regular key forces the main cylinder to be rotated, the operation of unlocking is not be performed, it can be effectively utilized as a highly safe cylinder lock.
  • a wrong method forces the main cylinder to be rotated
  • the main cylinder is idly rotated, the result is to avoid a breakage of the pin tumbler and the like, and since, only if the main cylinder is returned to the original rotational position, a re-use of the present cylinder lock as a normal one is possible without any special treatment given thereto, it can produce a marked economic effect.

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  • Lock And Its Accessories (AREA)
  • Vehicle Body Suspensions (AREA)
  • Chairs Characterized By Structure (AREA)
  • Valve Device For Special Equipments (AREA)
  • Switch Cases, Indication, And Locking (AREA)
EP86110919A 1985-08-08 1986-08-07 Serrure à cylindre Withdrawn EP0212468A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP174671/85 1985-08-08
JP60174671A JPS6237473A (ja) 1985-08-08 1985-08-08 シリンダ−錠

Publications (1)

Publication Number Publication Date
EP0212468A1 true EP0212468A1 (fr) 1987-03-04

Family

ID=15982657

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86110919A Withdrawn EP0212468A1 (fr) 1985-08-08 1986-08-07 Serrure à cylindre

Country Status (4)

Country Link
EP (1) EP0212468A1 (fr)
JP (1) JPS6237473A (fr)
KR (1) KR870002345A (fr)
NO (1) NO863151L (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0341132A1 (fr) * 1988-05-04 1989-11-08 Valeo Neiman Verrou à rotor débrayable
FR2635351A1 (fr) * 1988-08-12 1990-02-16 Daimler Benz Ag Cylindre de fermeture, notamment pour serrure de porte de vehicule
FR2650021A1 (fr) * 1989-07-24 1991-01-25 Vachette Sa Serrure de surete a stator debrayable
EP0571172A1 (fr) * 1992-05-21 1993-11-24 DOM-Sicherheitstechnik GmbH & Co. KG Serrure cylindrique à paillettes
EP0590330A1 (fr) * 1992-10-01 1994-04-06 Valeo Deutschland GmbH & Co. Sicherheitssysteme Cylindre de serrure
EP0647752A2 (fr) * 1993-10-08 1995-04-12 Valeo Sistemas De Seguridad, S.A. Serrure débrayable pour véhicules et similaires
EP0650874A1 (fr) * 1993-02-26 1995-05-03 Alpha Corporation Dispositif de verrouillage de la direction
EP0769597A1 (fr) * 1995-10-18 1997-04-23 Valeo Securite Habitacle Verrou du type à rotor débrayable
EP0833024A2 (fr) * 1996-09-25 1998-04-01 VALEO GmbH & Co Schliesssysteme KG Serrure cylindrique
EP1052351A2 (fr) * 1999-05-13 2000-11-15 Rover Group Limited Ensemble de verrouillage pour véhicule automobile
EP1193359A1 (fr) * 2000-09-27 2002-04-03 Valeo GmbH & Co. Schliessysteme KG Dispositif de fermeture
WO2004042175A1 (fr) * 2002-11-05 2004-05-21 Zdravko Rajacic Serrure a barillet de securite pourvue d'une cle a code
WO2012059094A1 (fr) * 2010-10-08 2012-05-10 Huf Hülsbeck & Fürst Gmbh & Co. Kg Cylindre de serrure
US8881566B2 (en) 2012-08-09 2014-11-11 Schlage Lock Company Llc Disc alignment mechanism
US9021843B2 (en) 2012-08-09 2015-05-05 Schlage Lock Company Llc Hybrid lock cylinder

Citations (2)

* Cited by examiner, † Cited by third party
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US3606776A (en) * 1970-04-17 1971-09-21 Gen Motors Corp Lock assembly
US4309882A (en) * 1979-05-25 1982-01-12 Arman S.P.A. Antitheft device for motor vehicles

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3606776A (en) * 1970-04-17 1971-09-21 Gen Motors Corp Lock assembly
US4309882A (en) * 1979-05-25 1982-01-12 Arman S.P.A. Antitheft device for motor vehicles

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0341132A1 (fr) * 1988-05-04 1989-11-08 Valeo Neiman Verrou à rotor débrayable
FR2631067A1 (fr) * 1988-05-04 1989-11-10 Neiman Sa Verrou a rotor debrayable
US4903512A (en) * 1988-05-04 1990-02-27 Neiman Lock of the disconnectable rotor type
FR2635351A1 (fr) * 1988-08-12 1990-02-16 Daimler Benz Ag Cylindre de fermeture, notamment pour serrure de porte de vehicule
FR2650021A1 (fr) * 1989-07-24 1991-01-25 Vachette Sa Serrure de surete a stator debrayable
EP0410830A1 (fr) * 1989-07-24 1991-01-30 Vachette Serrure de sûreté à stator débrayable
EP0571172A1 (fr) * 1992-05-21 1993-11-24 DOM-Sicherheitstechnik GmbH & Co. KG Serrure cylindrique à paillettes
EP0590330A1 (fr) * 1992-10-01 1994-04-06 Valeo Deutschland GmbH & Co. Sicherheitssysteme Cylindre de serrure
EP0650874A4 (fr) * 1993-02-26 1998-02-25 Alpha Corp Dispositif de verrouillage de la direction.
EP0650874A1 (fr) * 1993-02-26 1995-05-03 Alpha Corporation Dispositif de verrouillage de la direction
ES2073369A2 (es) * 1993-10-08 1995-08-01 Valeo Sistemas De Seguridad S Cerradura desembragable para vehiculos y similares.
EP0647752A3 (fr) * 1993-10-08 1996-05-01 Valeo Sistemas De Seguridad S Serrure débrayable pour véhicules et similaires.
EP0647752A2 (fr) * 1993-10-08 1995-04-12 Valeo Sistemas De Seguridad, S.A. Serrure débrayable pour véhicules et similaires
EP0769597A1 (fr) * 1995-10-18 1997-04-23 Valeo Securite Habitacle Verrou du type à rotor débrayable
FR2740163A1 (fr) * 1995-10-18 1997-04-25 Valeo Securite Habitacle Verrou du type a rotor debrayable
EP0833024A2 (fr) * 1996-09-25 1998-04-01 VALEO GmbH & Co Schliesssysteme KG Serrure cylindrique
EP0833024A3 (fr) * 1996-09-25 1999-06-09 VALEO GmbH & Co Schliesssysteme KG Serrure cylindrique
EP1052351A2 (fr) * 1999-05-13 2000-11-15 Rover Group Limited Ensemble de verrouillage pour véhicule automobile
EP1052351A3 (fr) * 1999-05-13 2001-10-04 Bayerische Motoren Werke Aktiengesellschaft Ensemble de verrouillage pour véhicule automobile
EP1193359A1 (fr) * 2000-09-27 2002-04-03 Valeo GmbH & Co. Schliessysteme KG Dispositif de fermeture
WO2004042175A1 (fr) * 2002-11-05 2004-05-21 Zdravko Rajacic Serrure a barillet de securite pourvue d'une cle a code
WO2012059094A1 (fr) * 2010-10-08 2012-05-10 Huf Hülsbeck & Fürst Gmbh & Co. Kg Cylindre de serrure
US8881566B2 (en) 2012-08-09 2014-11-11 Schlage Lock Company Llc Disc alignment mechanism
US9021843B2 (en) 2012-08-09 2015-05-05 Schlage Lock Company Llc Hybrid lock cylinder
US9027373B2 (en) 2012-08-09 2015-05-12 Schlage Lock Company Llc Hybrid lock cylinder
US9045916B2 (en) 2012-08-09 2015-06-02 Schlage Lock Company Llc Disc alignment mechanism
US9725923B2 (en) 2012-08-09 2017-08-08 Schlage Lock Company Llc Hybrid lock cylinder
US10480215B2 (en) 2012-08-09 2019-11-19 Schlage Lock Company Llc Hybrid lock cylinder

Also Published As

Publication number Publication date
KR870002345A (ko) 1987-03-30
JPS6237473A (ja) 1987-02-18
NO863151L (no) 1987-02-09
NO863151D0 (no) 1986-08-05

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