US3602020A - Lock - Google Patents

Lock Download PDF

Info

Publication number
US3602020A
US3602020A US810191A US3602020DA US3602020A US 3602020 A US3602020 A US 3602020A US 810191 A US810191 A US 810191A US 3602020D A US3602020D A US 3602020DA US 3602020 A US3602020 A US 3602020A
Authority
US
United States
Prior art keywords
ball
pistonlike
locking
recess
barrel
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.)
Expired - Lifetime
Application number
US810191A
Other languages
English (en)
Inventor
Tomomasa Kajita
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3602020A publication Critical patent/US3602020A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B37/00—Permutation or combination locks; Puzzle locks
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/096—Sliding
    • Y10T292/1014—Operating means
    • Y10T292/1022—Rigid
    • Y10T292/1028—Sliding catch
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/50—Special application
    • Y10T70/5093—For closures
    • Y10T70/5155—Door
    • Y10T70/5199—Swinging door
    • Y10T70/5372—Locking latch bolts, biased
    • Y10T70/5385—Spring projected
    • Y10T70/5389—Manually operable
    • Y10T70/55—Dogged bolt or connections
    • Y10T70/5518—Connections only
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7051—Using a powered device [e.g., motor]
    • Y10T70/7057—Permanent magnet
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7441—Key
    • Y10T70/7486—Single key
    • Y10T70/7508—Tumbler type
    • Y10T70/7559—Cylinder type
    • Y10T70/7576—Sliding and rotary plug
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7441—Key
    • Y10T70/7751—With ball or roller
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7441—Key
    • Y10T70/778—Operating elements
    • Y10T70/7791—Keys
    • Y10T70/7904—Magnetic features

Definitions

  • the present invention relates to a locking instrument efi'ective to be easily constructed with simple structure, wherein said locking instrument can be released or locked by depositing floating balls to a predetermined position through magnetic attraction exerted by a magnetic key, said floating balls being freely movably mounted in cylindrical spacings formed between cylindrical barrels having one end closed and pistonlike members relatively slidably engaging each other defining therewith a shallow ball chamber, the diameter of each floating ball being smaller than that of each bottom plane of said cylindrical barrels and slightly less than the depth of the ball chamber while locking axial sliding of said pistonlike member, said floating balls being efiective to enter into and snugly be accommodated in the interior of a recessed portion provided on the free end plane of the pistonlike member, additaments being provided in said free end plane to oppose movement of said ball into a position aligned with said recess and means coupling said barrel member and pistonlike member to an actuating member whereby when said ball is align
  • the present invention relates to a locking instrument effective to be released or locked by retaining floating balls in predetermined positions in the presence or absence of magnetic attraction exerted by the magnetic key.
  • the locking instrument of this type constructed so as to be released by depositing said floating balls to the predetermined positions, while the locked stage can be maintained so long as said floating balls do not position thereto. Accordingly, in order to minimize the probability of natural positioning of said floating balls to the predetermined releasing positions, areas for said balls to freely reside should be preferably large.
  • the structures for retaining said balls within the above-mentioned areas and the structures for restricting the movement of the lock releasing members in the one-dimensional direction by means of said ball retained within said areas should be simple and compact.
  • a conventional locking instrument of a type similar to this type of locking instrument of the present invention there is provided on relative contact surfaces of a pair of plates a pair of grooves extending in the secondary one-dimensional direction opposed to the primary one-dimensional direction in which two plates are relatively slidably in contact with each other, in order to establish the release stage by the movement of one plate of said two plates, said grooves being provided to serve as passages.
  • Movable members mounted in said passages are freely rollably provided in the secondary one-dimensional direction which is the lengthwise direction of any one of said passages.
  • the locked stage in said conventional locking instrument is established when the movable members prevent said pair of plates from relatively moving while said movable member resides in said passages apart from said supplementary grooves.
  • said movable members are attracted to said supplementary grooves through magnetic attraction exerted by the magnetic key employed to the predetermined position, said movable members can fall in said supplementary grooves whereas said pair of plates commences to relatively move in said primary one-dimensional direction and thereby convert the locking instrument from the locked stage to the released stage.
  • the locking instrument may be so complicated that it may be difficult to manufacture or its size may be too large.
  • Another conventional locking instrument different in structure from the abovementioned locking instrument is constructed in such a way as to provide in the lock housing a pair of movable members effective to relatively slide in the onedimensional direction, said pair of movable members being faced to each other in a separated condition, whereas the locking instrument can be released when these relatively movable members commence their relative approaching movement, otherwise the locked stage is maintained.
  • One of the relatively movable members is pivoted with needles effective to command the relative approaching movement of these relative movable members. Said needles are supported at the center of the length thereof, while permitting their points to swing in the two-dimensional direction of a plane substantially parallel to a plane vertical in said one-dimensional direction. In other words, said needles can freely point in any direction.
  • the back ends of said needles are constructed with magnets and said needles are maintained in the predetermined posture relative to one of said relatively movable members through magnetic attraction between the magnets provided in said needles and the magnets provided in the magnetic key at the predetermined position while said key is osculated against the predetermined portion of the outer wall of said lock housing.
  • the points of said needles are directed toward holes or recesses provided on the other one of said relatively movable members. Only in this state can said points pass through said holes or recesses permitting both relatively movable members to approach each other. On the contrary, other than in said state said point may contact the facing wall of the other one of said relatively movable members apart from said holes or recesses, whereby projection of said needles will prevent both of the relatively movable members from approaching each other.
  • the present invention is to eliminate these defects and thereby provide a magnetically operable locking instrument.
  • the present invention relates to a magnetic lock having an actuating member movable between a locking position and an unlocking position and comprises in combination at least one cylindrical barrel member having one end closed, a pistonlike member axially slidable within the barrel member and defining therewith a shallow ball chamber of substantially cylindrical shape, a magnetizable ball having a diameter slightly less than the depth of the ball chamber and freely movable in said ball chamber while blocking axial sliding of said pistonlike member within the barrel member, a ball receiving recess provided in one of the surfaces delimiting said ball chamber for snugly accommodating at least a portion of the ball therein, an additament opposing movement of said ball into a position aligned with said recess and means coupling one of the barrel members and pistonlike member to the actuating member, whereby when the ball is aligned with the recess, the pistonlike member is freed to penetrate into the barrel member and the actuating member is conditioned to move from the locking to the unlocking position.
  • the present invention relates to locking instruments comprising at least one cylindrical barrel having one end closed and at least one pistonlike member effective to relatively slidably engage each other and operable in two stages as hereinafter described, a floating ball residing in a shallow chamber formed between the free end plane of the respective pistonlike member and the bottom plane of the respective cylindrical barrel, the diameter of said floating ball being smaller than the diameter of each of said bottom plane and slightly less than the depth of said chamber, and a recessed portion provided on a portion of the free end plane of the pistonlike member and having an additament to oppose movement of said ball, for accommodating said floating ball, whereas when said floating ball is accommodated in the recessed portion, said pistonlike member can be advanced deep in said cylindrical barrel in the axial direction thereof to establish the first stage, or when said floating ball is not accommodated in the recessed portion, the second stage is established with respect to the cylindrical barrel and the pistonlike member wherein said spacing is formed between the free end plane of the pistonlike member and the bottom plane of the cylindrical barrel so that said pistonlike member cannot be advanced deep
  • the locking instrument of the present invention can be released in said first stage when said pistonlike member is advanced deep in said cylindrical barrel and at the same time accommodate said floating ball in said recessed portion by means of the magnetic force of a magnetic piece provided at least in a key and/or in the floating ball residing adjacent to the bottom plane of the cylindrical barrel, the peripheral wall of the cylindrical barrel or the free end plane of the pistonlike member while said cylindrical barrel and pistonlike member are included in the interior of the cylindrical housing, said floating ball being defined in its position by said magnetic force so as to engage with said recessed portion.
  • the locking instrument of the present invention is thus designed so that the floating balls, considering several pistonbarrel combinations, can freely roll in the cylindrical spacings formed between the free end planes of the respective pistonlike members and the bottom planes of the respective cylindri cal barrels whereby the probability of unforeseen engagement of each of said floating balls into the associated recessed portions provided on one portion facing said cylindrical spacing can be reduced.
  • the present invention provides a locking instrument that cannot be released without the specific magnetic key.
  • FIGS. 1-7 and 28 show the main embodiment of the invention
  • FIG. 1 is a side elevation of an assembled locking instrument in accordance with the present invention representing the locked stage
  • FIG. 2 is the same as FIG. 1 but representing the released stage
  • FIG. 3 is a section taken along line 3-3 of FIG. 1;
  • FIG. 4a, 4b, 4c are front views of a front cover, collar and y
  • FIG. 5 is a section taken along line 5-5 of FIG. 1;
  • FIGS. 6 and 7 are illustrative diagrams showing the operational mode of the locking instrument shown in FIGS. 5 and 6 from the locked stage as indicated by dotted line to be released stage as indicated by full line, while in FIG. 7 there is shown the reversal operation thereof relative to FIG. 6;
  • FIG. 8 in conjunction with FIG. 28 illustrates another embodiment according to the principles of this invention and is a side section, on an enlarged scale, of a portion wherein each of the pistonlike members is inserted in each of the cylindrical barrels;
  • FIG. 9 in conjunction with FIG. 28 illustrates another em- 1 bodiment according to the principles of this invention and is a being a section taken along line 13-13 in FIG. 12;
  • FIG. 14 in conjunction with FIG. 28 illustrates another embodiment of this invention and is a front elevation of a portion wherein a group of pistonlike members and a group of cylindrical barrels are in engagement with each other;
  • FIGS. 15-18 in conjunction with FIG. 28 illustrate another embodiment of this invention, FIGS. 15 and 16 being side elevations of the assembled locking instrument, FIG. 15 being in the locked stage and FIG. 16 in the released stage but in the ready-to-be-released stage as shown by dotted line;
  • FIG. 17 is a section taken along line 17-17 in FIG. 15;
  • FIG. 18 is a section taken along line 18-18 in FIG. 15;
  • FIGS. 19 and 20 illustrate another embodiment of this invention, FIG. 19 being a perspective view, on an enlarged scale, of a portion wherein a pistonlike member is to be fitted to a frame body, while FIG. 20 is a back view of a portion in which said pistonlike member is fitted to said frame body;
  • FIG. 21 illustrates another embodiment of this invention and is a front elevation, on an enlarged scale, of a portion wherein a pistonlike member is fitted to a frame body;
  • FIG. 22 illustrates another embodiment of this invention and is a side elevation, on an enlarged scale, of a portion wherein a pistonlike member is inserted in a cylindrical barrel;
  • FIG. 23 illustrates another embodiment of this invention and is a side elevation wherein a pistonlike member is inserted in a cylindrical barrel;
  • FIGS. 24 and 25 in conjunction with FIG. 28 illustrate another embodiment of this invention, FIG. 24 showing a portion wherein a pistonlike member is inserted in a cylindrical barrel in side elevation on an enlarged scale, and FIG. 25 showing a section taken along line 2525 in FIG. 24;
  • FIGS. 26 and 27 in conjunction with FIG. 28 illustrate another embodiment of this invention, FIG. 26 showing a portion in front elevation wherein a group of pistonlike members is inserted in a group of cylindrical barrels, while FIG. 27 is a section taken along line 27-27 of FIG. 26;
  • FIG. 28 illustrates a side elevation, on an enlarged scale, of a portion wherein a pistonlike member is inserted in a cylindrical barrel
  • FIG. 29 in conjunction with FIG. 28 illustrates another embodiment of this invention and is a side developed view of a portion wherein a group of pistonlike members is inserted in a group of cylindrical barrels;
  • FIG. 30 illustrates another embodiment of this invention and is an elevation of a portion wherein a group of pistonlike members is fitted to a disc plate;
  • FIG. 31 illustrates another embodiment of this invention and is a modification of the embodiment shown in FIG. 8.
  • FIGS. 1-7 and FIG. 28 depicting the main embodiment of the invention.
  • Other illustrated embodiments are only modifications of this main embodiment.
  • Numeral 103 indicates a plurality of cylindrical barrels substantially laterally secured to and suitably annularly spaced on the back plane 102 of a front disc plug 101 for securely locking the device disclosed by the present invention.
  • Each of said cylindrical barrels 103 is formed complementally to receive the pistonlike member 104 therein.
  • These cylindrical barrels and pistonlike members can be operated alternatively to two stages which will be described later.
  • Each projecting end 105 portion of the pistonlike members 1041 is secured to the front wall 107 of a disc plate 106, with each of said pistonlike members 1 being rigid with said disc plate 106.
  • a cylindrical spacing 111 is formed between a portion of the back plane 102 of the front disc plug and a free end plane 110 of said pistonlike member 1041, the portion being designated as bottom plane 109 of said cylindrical hole 100.
  • Floating balls 112 which are smaller in diameter than the diameter of each of the bottom planes 109, are freely movable in each of the cylindrical spacings 111.
  • Each terminal portion of the pistonlike member 1041 is provided with a ball receiving recess 1113 for completely accommodating said floating balls 1112.
  • F116. shows an additament 002 which opposes movement of said ball into a position aligned with said recess.
  • each pistonlike member 113 is advanced its full length into the barrel 103.
  • the balls 112 are not accommodated in the ball chambers they are interposed between the terminus of the pistonlike members 1104 and the wall 109.
  • the pistonlike members 1041 and cylindrical barrels 103 are mounted in a cylindrical housing 114 with the barrels being closed by the disc plug 101.
  • a collar portion 115 is availed of to retain the disc plug 101 in said housing.
  • the peripheral edge 116 of the plug 101 projects toward the collar portion 115, and is provided as shown in FIG. 41a with two en gagement grooves 117.
  • the said collar portion 115 is provided with a groove 1119.
  • a key 1121 is provided with two engagement projections 122l122 corresponding respectively with said engagement grooves 117, said key being in the form of a disc and effective to freely osculate with the front plane 120 of said disc plug.
  • the key 1121 is provided with powerful magnetic pieces 1123 at suitable positions corresponding to the recessed portions 113 which are provided in the free end plane 110 of the pistonlike members 104.
  • the floating balls 112 are magnetizable so that when the magnetic key 121 is osculated into contact with the front plane 120 in the second operational stage heretofore described, the balls 112 then lying in the cylindrical spacings 111 are attracted by the magnetic force of pieces 123 thereby lifting the balls 112 to an elevated position adjacent to the magnetic pieces 123 thereby establishing the first operational stage.
  • the backing plug 11241 is telescoped into the cylindrical housing 11 1 and secured therein by screws 125.
  • the backing plug 1241 includes an annular projection 1127 which is provided with a cam surface 120.
  • Another cam plane 129 complemental to cam plane 120 is provided on an annular projection 131 which is integral with and projects from the backwall 130 of the disc plate 100.
  • a compression spring 1341 is interposed under tension in a chamber formed of the front wall 107 of the disc plate and a seat 1133 provided in the disc plug 101. When said spring 1341 is energized as shown in MG. 1, the plug 101 is pushed toward collar portion 115 while said disc plate 106 is pushed toward the backing plug 1241, and at this moment the cam planes 120 and 120 are in engagement with each other.
  • a pillar 135 projecting from the center of the backwall of the disc plate 100 includes a fork member 1130 and one end of a lock-operating member 130 is swingably pivoted to said fork member 1110 through a transverse pin 1317 while the other end thereof extends through a hole 139 provided substantially in the center of said backing plug 1241.
  • the outer wall 1410 of said backing plug 12d and the inner wall M2 of a boxlike housing M1 arranged adjacent thereto are rigidly connected by means of a plurality of screws 109 to form an integral unit therebetween.
  • an aperture M13 In the center of the inner wall 1412 of said boxlike housing 11411 is provided an aperture M13, coaxial with said opening 130, within which aperture 1413 is provided a rotatable boss member 14141 having a rectangular window M5 through the axis thereof.
  • the lock operating member is inserted through the axis thereof.
  • the lock operating member 1138 is inserted through said rectangular window and is effective to swing in the axial direction thereof.
  • the major arc edge of a segment 146 which is integral with the boss member 141 1 extends radially into the boxlike housing.
  • Coaxial with aperture 143 is an opening M01 in housing 11411 and within which a revolvable shaft 149 is retained. One end of said shaft extends through the aperture 1410 and is provided with a lock operating knob 150, while the other end thereof is rigid with a segment 151 carrying a pin 113.
  • one or the other of the edges 152 of said segment 151 is constantly pressed by a V- shaped plate spring 153, one leg ofwhich is received in groove 154 while the reentrant bent portion is seated in groove 1150' in the upper portion of the housing 141.
  • a locking plate 155 is transversely shiftably provided between the segments 1416 and 151, and an integral locking element projecting from the locking plate 155 in the direction of the shifting action of said plate 155 can reciprocate through a passageway 150 provided on one sidewall 157 of the housing M1 and an opening 160 provided on a locking element receiving member 159 located beside the housing 1 11.
  • the locking plate 155 is slotted at 1161, as shown in FIGS. 1 and 2 and 5, 6 and 7, and arranged to receive a locking pin 163.
  • One end of pin 163 is secured to a wall adjacent to the minor arc edge 164 of said segment 151 and is positioned out of the axis of the shaft 11419 which is the rotational center for said segment 151.
  • the locking instrument of the present invention is thus constructed as heretofore described, and is commonly adoptable to doors, covers, windows, etc., for security or any other purposes.
  • the locking instrument of the present invention is provided in connection with a door frame in such a way as to rigidly fit the cylindrical housing 1% to a complementally formed aperture 160 provided in a door frame 165 and is so arranged that the collar portion 115 and the front disc cover 101 are exposed outside the door, and the outer wall 147 of the housing 1411 and the lock operating knob 150 are exposed inside the door.
  • the function of the locking instrument according to the present invention principally consists of two stages, one of which is the released stage or the first stage, and the other of which is the locked stage or the second stage.
  • F168. 1 and 5 show the second stage
  • F 168. 2 and 6 show the first stage and the description with regard to the function of the parts inside the locking instrument will be made in the order of the second stage to the first stage, that is, from the locked stage to the released stage.
  • the disc plate 100 is also rotated through the front plug, cylindrical barrels 1031, and pistonlike members 1041 and thereby the cam 129 on said disc plate we is pressed by the cam plane 128 on the backing plug 124, with the result of causing said pistonlike member 104 to advance deep in said cylindrical hole while said balls 112 are moved to the recessed portions 113.
  • the rotation of said disc plate 106 is transmitted to the lock operating member 138 through the means explained previously thereby to cause the operating member 138 to swing the segment 146 with the major arc edge. Therefore, the locking instrument of the present invention is effective to rigidly fasten the door with a sense of security as can well be appreciated.
  • the locking instrument designed as heretofore fully described with respect to the first embodiment of the present invention is modified in such a way as to provide recessed portions 204 for accommodating balls 203 on portions of the bottom planes 202 corresponding to free end planes 201 of pistonlike members. If a lower sidewall 205 of each recessed portion 204 is imparted with a gentle slope toward the opening of the cylindrical spacing 206, said balls 203 can easily escape from the recessed portion 204 and return to space 206.
  • the locking instrument of the first embodiment is modified in such a way as to provide a plurality of cylindrical barrels integrally constructed with a single element 251 and also to provide a plurality of pistonlike members 252 integrally constructed with a disc plate 253 by having each of the pistonlike members projecting therefrom.
  • This structure has an advantage that said cylindrical barrels and pistonlike members can be easily manufactured.
  • the locking instrument of the main embodiment is modified in such a way as to provide each aperture 301, with a vertex 302, the cross section thereof being provided as shown in FIG. 10 through the length thereof, so that the balls 304 can be returned to the vertices when not influenced by themagnets.
  • the structure of the locking instrument is largely modified so that a full description is hereinafter (see FIGS. with reference to FIGS. 11-13.
  • a plurality of cylindrical apertures 353 are provided in housing 363, as shown. These apertures 353 are equally spaced (see FIG. 13) and each receives therein a slidable pistonlike member 355.
  • This embodiment of the invention is quite similar to FIGS. 1 and 2 except that in this instance some of the elements are made integral rather than assembled from complemental pieces.
  • Pistonlike members 355 are integrally constructed with disc plate 361 with each extending substantially parallel to the disc plug 351.
  • a setting projection 366 is provided which is complemental to recess 368 carried by a key 367 and effective to osculate with the front plane 364 of the disc plug 351.
  • Housing 363 is provided with internal threaded grooves 371 and external threaded grooves 372 are provided on the outer periphery of the backing plug 373 which is screwed thereinto to shut the opening.
  • a compression spring 393 which functions in the same manner as that-shown in FIG. 1. Also, it will be noted that FIG. 1 shows the general arrangement of the operation of FIG. 11 and FIG. 2 shows that shown in FIG. 12.
  • locking rod guide members 375 are fastened adjacent to the outer plane 374 of backing plug 373.
  • Said guide members 375 comprise a disc 377 arranged parallel to the backing plug 373 and channel member 378 is integrally formed with said disc 377.
  • the plug 373 and disc 377 are each provided with aligned apertures and arranged to have extend therethrough the bar members 380, said bar being associated with the disc plate 361.
  • the locking instrument of the present invention is thus con structed as heretofore described and in this embodiment is rigidly fitted into a fitting hole 390 on a frame of a hinged door 389. While on one hand the front plane 364 of the front plug is exposed outside the door 389 and on the other hand the locking rod guide members 375 are exposed inside the door 389.
  • the key When the locking instrument of the present invention is in the locked stage as shown in FIG. 11, the key must be brought into engagement with plate 364 and with the projection 366 in registration with recess 368. The balls are then attracted by the magnetic pieces 369.so as to position them at the respective positions corresponding to the recessed portions 360. While in this state the locking rod 383 can be moved, by means of a handle member (not shown) provided on the outside of the door 389, to shift the rod out of socket 388. Since the balls are now positioned in chambers 360 the chamfered edge of the rod will pass over the end of element 380 overcoming the spring 391 and, thus, retain the balls in their confined location.
  • the reversal operation from the released state to the locked state can be made by shifting said locking rod 383 in the opposite direction, that is, in the direction of the top end 387 thereof.
  • the locking state can be established while the sidewall 395 leaves the projecting end 394 of the square bar 380 is permitted by means of the compression spring 393 to enter the locking rod guide spacing 382.
  • the pistonlike members 355 are moved out of the respective apertures 353 while causing the balls to move out of the chambers into spacings 358.
  • the locking instrument in the sixth embodiment is modified as to the embodiment number five in such a way as to provide a plurality of apertures 401 and a plurality of pistonlike members 402 for association therewith.
  • FIGS. 15-18 Another embodiment of the present invention will be hereinafter described with reference to the attached drawings, particularly FIGS. 15-18.
  • a plurality of cylindrical apertures 453 are provided on the back plane 452 of a thick front plug to furnish cylindrical barrels 454. These apertures 453 are suitably annularly spaced thereon and carry respective pistonlike members 455 slidable in the axial direction thereof.
  • a spacing 458 is fonned between a free end plane 457 of each of the pistonlike members 455 and the bottom plane 456 of each of the holes 453.
  • balls 459 each smaller in diameter than either of the bottom planes 456 of the cylindrical barrels 454 are provided.
  • chambers 460 effective to completely accommodate balls 459 are provided at optional positions.
  • cylindrical housing 463 is integral with the cylindrical barrel 454.
  • the front plane 464 of the front plug 451 is provided with a recess to receive the key 468.
  • a notch 400 for receiving an extension 407 provided on the key 408 coincides with the front plane 404 of the plug and is provided at a suitable position on the annular sidewall 400.
  • the magnetic elements 409 are used also here to control the balls 459 and lift them from their blocking positions into positions where they may be received in the chambers 400 provided in the pistons 455.
  • the peripheral inner surface of the front 470 of the cylindri cal housing is undercut and arranged to receive an annular member 472, the latter being retained therein by screws 473.
  • annular member 472 there is a spring 470 positioned in the chamber provided between the front plug 451 and the element that carries the pistons 455.
  • Lock means 481 are provided at two optional positions about the annular outer plane 479 of the annular member 472 and opposite each other. The depth of these locking means 401 is less than the diameter of each of the balls 459.
  • a locking recess 403 engageable with said locking means is provided on the locking disc 482 which are slidably fitted in the inner peripheral wall of the annular member.
  • the locking disc 402 includes an offstanding pillar 488 and an operator means or knob 409.
  • the locking instrument of the present embodiment of the invention is thus constructed and to fasten together the complementally perforated plates 492 and 493, said locked plates 492 and 493 being interposed between the cylindrical housing 463 and the locking enlarged head 409 and adapted to receive therethrough the disc 402.
  • the locking head 409 can now be pressed in the direction of the cylindrical housing 403 overcoming the pressure of spring 470 and then when the disc 402 is in the position shown in full lines in FIG. 10 the knob 409 can be rotated to withdraw the disc by means of aligning the grooves 400 with the locking means 481. Thereafter the entire knob 489 can be withdrawn (see dotted lines in FIG. 10) so that perforated members 492 and 493 can be separated.
  • this locking instrument As a locking instrument of the type having heretofore little possibility of releasing without the magnetic key, this locking instrument has been proposed wherein, as hereinbefore described, the needles are pivoted to be freely turnable in respect to their pointing direction and the points thereof are freely shiftable in the two-dimensional space.
  • the locking instrument is modified in such a way as to provide a recessed portion 503 extending inwardly from the free end plane 502 of each of the pistonlike members 5011. Also, this locking instrument is modified in such a way as to provide two legs 505 on another end plane 504 of each of the pistonlike members 5011, said end plane projecting from the associated cylindrical barrel. These two legs 505 are symmetrically arranged while the center of symmetry is the central point of the projecting end plane 504.
  • a plurality of perforation 500, 509 and 510 are provided in a pistonlike member 507 comprising the disc plate 500 effective to rigidly retain said pistonlike members 501, and said legs can be positioned in pairs of the perforations 500, 509 and 510.
  • perforations 503510 are arranged around the axis of point 111 as described in the first embodiment, that is, around the central point 511 of the pistonlike member 507 with a different relative angle 512.
  • a pair of said legs 505 are inserted in any compatible pair of perforations 500, 509 or 510 whereby said pistonlike member 501 is assembled in said structural member 500 while the relative angle 512 around the central point 511 is alternatively selected, and therefore can alternatively select the position for the recessed portion 503 around the axis of point 111.
  • the locking instrument in the first embodiment previously described is modified in such a way as to provide an integral single leg 551 which projects from a hexagonal-shaped pistonlike member 552.
  • Said single leg 551 thus formed is of the same hexagonal cross section as that of said pistonlike member 552.
  • said hole 553 is also formed hexagonally.
  • the position for the recess 503 around said axis can be defined by selecting the position around said axis for thebottom plane 109 (FIGS. 1 and 2) of the cylindrical barrel or the free end plane 502 of the pistonlike member provided with said recessed portion 503 and rigidly assembled to the structural member 500, a plurality of unitary bodies of the bottom plane 109 of the cylindrical barrel or the pistonlike member 501 of the same shape provided with the recessed portion 503 at one portion can be prepared in the course of manufacturing process.
  • these unitary bodies are to be assembled, only the position therefor around said axis is selected so that the position for said recessed portion 503 around said axis can be simply defined. Therefore, the locking instrument can be easily manufactured and simply assembled.
  • the locking instrument in these embodiments is of die type wherein unitary bodies of the same shape are prepared in advance and when they are to be assembled in the locking instrument, adjustment of assembling said unitary bodies therein can define the desired positions for said recessed portion.
  • the desired locking instrument of the present invention can be obtained.
  • FIG. 22 Another embodiment will be hereinafter described with reference to FIG. 22 in which one of the pistonlike members 0011 and its associated portion are shown.
  • each free pistonlike member 001 is modified in such a way as to provide in a pistonlike member 0011 an enlarged bore 004 communicating with the chamber 003 into which the ball 0114 will be received.
  • a spring urged headed pin 005 Positioned within said base 004 is a spring urged headed pin 005, the shoulder portion 007 of which engages an annular seat 000 thus retaining it in the bore.
  • the locking instrument is thus designed so that, even if each floating ball 014 is attracted to the position facing said chamber 013, said ball 014 cannot enter the chamber unless it is thereinto.
  • said pin 005 is effective to close the opening 013 and prevent said ball 014 from unexpectedly entering the chamber 014. Therefore, even if the locking instrument of this type is roughly shaken, while said chamber 003 is facing upwardly, pin 005 will prevent said ball 0114 from entering the chamber.
  • the locking instrument can be easily released without the key because the floating ball 014 can easily fall in the recessed portion 003 when said locking instrument is shaken while said portion 603 faces upward.
  • said pin 605 is provided therein to prevent said ball 614 from unexpectedly entering said recessed portion 603, with less possibility of releasing without the magnetic key 615.
  • FIG. 23 pertains to another embodiment hereinafter fully described.
  • the pin 605 shown in FIG. 22 is now numbered 655 and is longer than the depth of the recessed portion 653.
  • a spring 662 is mounted under tension between the back 660 of said pin 655 and a disc plate 661 rigidly retaining said pistonlike member 651. Therefore, said pin 655 is pressed toward the cylindrical space 658 and closes the aperture 655 while the top end plane 663 thereof projects out of said chamber.
  • each piston end wall 702 with a recess 703 which is offset from the axis of said pistonlike member and in which is embedded a magnet 705.
  • This smaller magnet 705 has a magnetic force which is much less than the magnetic pieces 707 which are embedded in the key.
  • the combined magnetic force of said magnet 705 and said magnetic piece 707 may be employed therein so as to attract the ball 709 at a certain position in the cylindrical spacing 708 and, in addition, said ball 709 may be a magnet.
  • said total magnetic force of said magnet 705, magnetic piece 707 and magnetic ball 709 must be adjusted so as to attract said ball 709 to the position corresponding to the chamber 703 in order to establish the first stage.
  • the locking instrument embodiment is modified so that two of the pistons (see FIG. 27) are integrated, as shown at 762, into one element with their end walls being arranged with a slot and the end wall 761, rather than having a smooth uninterrupted surface as shown in the other forms of the invention, are provided with a barrier 755; the barrier functioning to position the balls 753-753 in separate areas adjacent to the chambers 758-758 and into which the balls will be received when the proper magnetic key is used.
  • the locking instrument is modified by providing the end wall 803 of the pistonlike members with an offstanding annular projection 802 surrounding the chamber 801.
  • the locking instrument is modified to provide a structure somewhat resembling that shown in FIG. 27 previously described.
  • the ball receiving chambers are positioned alternatively between the end wall of the piston and the bottom wall.
  • FIG. 29 it will be noted that every other chamber for a ball is in the piston, while still other chambers to receive the balls are in the wall, the opposite side of which is arranged to be engaged by the key 855.
  • each ball receiving chamber in the end wall of the piston is displaced from each of the central points of the free end planes 902 while the distances 905 are differentiated from one another and also the center angles 906 to the lines passing through the centers of said chambers are differentiated from one another.
  • a plurality of unitary pistonlike members 901 of which each free end plane is provided with the differentiated chamber in distance and in angle from the axis thereof are secured to the front plane of the disc plate 907.
  • the locations of the chambers 904 are defined by a combination of the differentiated center angles 906 each between the line horizontally passing through the central point 903 and the line passing through the center of the chamber 904 to said central point 903 and the differentiated distances each between the central point 903 to the center of the chamber 904, each of said locations being on the corresponding free end plane 902 of the pistonlike members 901, a large number of different locations of the chambers 904 can be determined as a whole. Therefore, a large number of different locking combinations with respect to the locking instrument and the key can be advantageously appreciated.
  • recessed portions 210 are respectively provided about root portions of the barriers 213 for the cylindrical barrels 212, said root portions being adjacent to the bottom planes 21 l of the cylindrical barrels.
  • a magnetic lock having an actuating member movable between a locking position and an unlocking position
  • a closing member in said recess resiliently retained in closing position and retractable from said position in response to pressure from said ball.
  • a plurality of ball chambers having their pistonlike members provided with recesses on the end surfaces thereof and of ball chambers provided with recesses in the surfaces of said barrel members.
  • a plurality of ball chambers having the recesses thereof at difi'erent distances from the axis of the chamber and in different angular positions relative to said axis.
  • a magnet in a surface portion of said ball chamber spaced from said recess and defining a locking position of said ball.

Landscapes

  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
US810191A 1969-01-20 1969-03-25 Lock Expired - Lifetime US3602020A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP44004241A JPS497468B1 (enrdf_load_stackoverflow) 1969-01-20 1969-01-20

Publications (1)

Publication Number Publication Date
US3602020A true US3602020A (en) 1971-08-31

Family

ID=11579036

Family Applications (1)

Application Number Title Priority Date Filing Date
US810191A Expired - Lifetime US3602020A (en) 1969-01-20 1969-03-25 Lock

Country Status (2)

Country Link
US (1) US3602020A (enrdf_load_stackoverflow)
JP (1) JPS497468B1 (enrdf_load_stackoverflow)

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3785188A (en) * 1972-03-21 1974-01-15 Modern Annuciation Inc Magnetic controlled door lock
US3952563A (en) * 1973-11-21 1976-04-27 Kyo-Ei Industrial Corporation Lock assembly
US3967479A (en) * 1974-06-25 1976-07-06 Jerome Vick Key lock
DE2711061A1 (de) * 1976-03-16 1977-09-29 Auto Security Prod Durch einen schluessel unter einfluss eines diesem zugeordneten magnetischen feldes betaetigbares schloss
US4051702A (en) * 1975-07-28 1977-10-04 Bunker Ramo Corporation Magnetically operated switch lock and key therefor
US4127017A (en) * 1975-12-23 1978-11-28 Mrt Magnet-Regeltechnik G.M.B.H. Method of producing magnetic bodies and the use thereof in magnetic locks
US4285220A (en) * 1977-12-29 1981-08-25 Tomomasa Kajita Magnetically operable lock
US4307589A (en) * 1978-01-13 1981-12-29 Tomomasa Kajita Magnetic lock construction
US4909053A (en) * 1988-05-17 1990-03-20 Liberty Telephone Communications, Inc. High security door locking device
US4936896A (en) * 1988-12-19 1990-06-26 Hiroshi Hasegawa Device for confirming whether a lock is locked or unlocked
US5605065A (en) * 1993-07-07 1997-02-25 Lopez-Casals; Jesus Magnetic controlled locking apparatus
US6550298B1 (en) * 2001-10-09 2003-04-22 Liang-Chin Su Lockset keyway cover-up mechanism
US6883357B1 (en) * 2003-12-23 2005-04-26 Gang Gwo Industrial Co., Ltd. Indicating lock for a rimless glass door
US20060032279A1 (en) * 2004-08-11 2006-02-16 Andersen Michael T Key assembly
US20060191305A1 (en) * 2004-10-13 2006-08-31 Golubev Vitaly N Security Lock Cylinder Mechanism
US20080190152A1 (en) * 2005-03-24 2008-08-14 Fabio Fontana Magnetic System for the Unlocking of Padlocks and Locks
US20110209509A1 (en) * 2010-02-26 2011-09-01 Mark Nickeas Magnetic Barrel Lock Assembly
US20140202221A1 (en) * 2011-06-14 2014-07-24 Fabio Fontana Fastening and unfastening system of stackable elements
US20140230500A1 (en) * 2013-02-15 2014-08-21 Pier Luigi Oliana Lock for a door or door wing
US20140250959A1 (en) * 2013-03-09 2014-09-11 Linclon Tsai Magnetic lock
US8863563B2 (en) 2010-02-26 2014-10-21 Rexnord Industries, Llc Magnetic lock and key assembly
US9528297B2 (en) 2015-03-30 2016-12-27 Rexnord Industries, Llc Magnetic lock and key assembly
US9988827B2 (en) * 2014-10-16 2018-06-05 David Frank Borenstein Magnetic key assembly
US10422161B2 (en) 2015-05-20 2019-09-24 Hamish Connan Magnetic lock mechanism
US20220259902A1 (en) * 2021-02-16 2022-08-18 Lear Corporation Modular attachment mechanism and method
US20250257588A1 (en) * 2022-06-30 2025-08-14 Dirak Dieter Ramsauer Konstruktionselemente Gmbh Magnetically Coded Lock

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56174409U (enrdf_load_stackoverflow) * 1980-05-28 1981-12-23

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US428247A (en) * 1890-05-20 Of same place
US2116011A (en) * 1938-01-19 1938-05-03 Kenly C Bugg Lock
US2177996A (en) * 1938-07-29 1939-10-31 Eagle Lock Company Lock
US2189880A (en) * 1938-05-02 1940-02-13 Kenly C Bugg Lock
US2732703A (en) * 1956-01-31 noregaard
US3234767A (en) * 1962-02-28 1966-02-15 Allander Claes Vilhelm Magnetically operable lock
US3473835A (en) * 1966-12-16 1969-10-21 Ind De Mecanismes Cie Ball or roller locks

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US428247A (en) * 1890-05-20 Of same place
US2732703A (en) * 1956-01-31 noregaard
US2116011A (en) * 1938-01-19 1938-05-03 Kenly C Bugg Lock
US2189880A (en) * 1938-05-02 1940-02-13 Kenly C Bugg Lock
US2177996A (en) * 1938-07-29 1939-10-31 Eagle Lock Company Lock
US3234767A (en) * 1962-02-28 1966-02-15 Allander Claes Vilhelm Magnetically operable lock
US3473835A (en) * 1966-12-16 1969-10-21 Ind De Mecanismes Cie Ball or roller locks

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Popular Science, February 1951, pages 219 and 220, article by Walter E. Burton; Published by Popular Science Publishing Co., Inc., 355 Lexington Avenue, New York, N.Y. 10017, copy in class 70, subclass 290 *

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3785188A (en) * 1972-03-21 1974-01-15 Modern Annuciation Inc Magnetic controlled door lock
US3952563A (en) * 1973-11-21 1976-04-27 Kyo-Ei Industrial Corporation Lock assembly
US3967479A (en) * 1974-06-25 1976-07-06 Jerome Vick Key lock
US4051702A (en) * 1975-07-28 1977-10-04 Bunker Ramo Corporation Magnetically operated switch lock and key therefor
US4127017A (en) * 1975-12-23 1978-11-28 Mrt Magnet-Regeltechnik G.M.B.H. Method of producing magnetic bodies and the use thereof in magnetic locks
US4228667A (en) * 1976-03-16 1980-10-21 Lowe And Fletcher Limited Magnetically acting lock and key
DE2711061A1 (de) * 1976-03-16 1977-09-29 Auto Security Prod Durch einen schluessel unter einfluss eines diesem zugeordneten magnetischen feldes betaetigbares schloss
US4285220A (en) * 1977-12-29 1981-08-25 Tomomasa Kajita Magnetically operable lock
US4307589A (en) * 1978-01-13 1981-12-29 Tomomasa Kajita Magnetic lock construction
US4909053A (en) * 1988-05-17 1990-03-20 Liberty Telephone Communications, Inc. High security door locking device
US4936896A (en) * 1988-12-19 1990-06-26 Hiroshi Hasegawa Device for confirming whether a lock is locked or unlocked
US5605065A (en) * 1993-07-07 1997-02-25 Lopez-Casals; Jesus Magnetic controlled locking apparatus
US6550298B1 (en) * 2001-10-09 2003-04-22 Liang-Chin Su Lockset keyway cover-up mechanism
US6883357B1 (en) * 2003-12-23 2005-04-26 Gang Gwo Industrial Co., Ltd. Indicating lock for a rimless glass door
US20060032279A1 (en) * 2004-08-11 2006-02-16 Andersen Michael T Key assembly
US7181939B2 (en) * 2004-08-11 2007-02-27 Andersen Michael T Key assembly
US20060191305A1 (en) * 2004-10-13 2006-08-31 Golubev Vitaly N Security Lock Cylinder Mechanism
US20080190152A1 (en) * 2005-03-24 2008-08-14 Fabio Fontana Magnetic System for the Unlocking of Padlocks and Locks
US7621161B2 (en) * 2005-03-24 2009-11-24 Fabio Fontana Magnetic system for the unlocking of padlocks and locks
US8863563B2 (en) 2010-02-26 2014-10-21 Rexnord Industries, Llc Magnetic lock and key assembly
US20110209509A1 (en) * 2010-02-26 2011-09-01 Mark Nickeas Magnetic Barrel Lock Assembly
US20140202221A1 (en) * 2011-06-14 2014-07-24 Fabio Fontana Fastening and unfastening system of stackable elements
US9273494B2 (en) * 2011-06-14 2016-03-01 Fabio Fontana Fastening and unfastening system of stackable elements
US20140230500A1 (en) * 2013-02-15 2014-08-21 Pier Luigi Oliana Lock for a door or door wing
US9249600B2 (en) * 2013-02-15 2016-02-02 Pier Luigi Oliana Lock for a door or door wing
US20140250959A1 (en) * 2013-03-09 2014-09-11 Linclon Tsai Magnetic lock
US9988827B2 (en) * 2014-10-16 2018-06-05 David Frank Borenstein Magnetic key assembly
US9528297B2 (en) 2015-03-30 2016-12-27 Rexnord Industries, Llc Magnetic lock and key assembly
US10422161B2 (en) 2015-05-20 2019-09-24 Hamish Connan Magnetic lock mechanism
US20220259902A1 (en) * 2021-02-16 2022-08-18 Lear Corporation Modular attachment mechanism and method
US20250257588A1 (en) * 2022-06-30 2025-08-14 Dirak Dieter Ramsauer Konstruktionselemente Gmbh Magnetically Coded Lock

Also Published As

Publication number Publication date
JPS497468B1 (enrdf_load_stackoverflow) 1974-02-20

Similar Documents

Publication Publication Date Title
US3602020A (en) Lock
US3524335A (en) Axial tumbler type lock and key therefor
US6973809B2 (en) Number lock device for computer
US5010752A (en) Structure for controlling the dead bolt in an electronic lock
US3512382A (en) Hybrid lock
US4055972A (en) Combination-controlled and key-operated security padlock
US3665740A (en) Magnetic pin tumbler lock
US3172279A (en) Padlock assembly
US4979768A (en) Deadbolt backset latch with interlock
US3995460A (en) Magnetic card key operated door lock structure
US5205596A (en) Door latch member
US11098509B2 (en) Double-door lock assembly
US20100077815A1 (en) Unlocking Device for Concealing Keyhole of Lock
US4941697A (en) Over-loading idling lock set
US4193276A (en) Lock for railroad switch
US3974669A (en) Lock
US5103661A (en) Mechanical code lock
US3968668A (en) Pickproof cylinder lock
US3693384A (en) Step cam disc cylinder lock
JPH01158185A (ja) 可動押し出し部材付き鍵，安全ロックシリンダ，及び錠
US4028917A (en) Key retaining cylinder for a lock
US3548620A (en) Cam type disc cylinder lock
US3764103A (en) Safety lock for a stove
US3856339A (en) Releasable knob for a lock
US3759074A (en) Locking mechanism having key operation on two sides