EP0054591A1 - Mechanisches digitales Schloss - Google Patents

Mechanisches digitales Schloss Download PDF

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Publication number
EP0054591A1
EP0054591A1 EP19800304715 EP80304715A EP0054591A1 EP 0054591 A1 EP0054591 A1 EP 0054591A1 EP 19800304715 EP19800304715 EP 19800304715 EP 80304715 A EP80304715 A EP 80304715A EP 0054591 A1 EP0054591 A1 EP 0054591A1
Authority
EP
European Patent Office
Prior art keywords
plate
sliding block
lock according
digital lock
mechanical digital
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.)
Ceased
Application number
EP19800304715
Other languages
English (en)
French (fr)
Inventor
San-Tong Day
David Tin-Yuia Wang
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
Priority to EP19800304715 priority Critical patent/EP0054591A1/de
Publication of EP0054591A1 publication Critical patent/EP0054591A1/de
Ceased 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
    • E05B37/00—Permutation or combination locks; Puzzle locks
    • E05B37/16—Permutation or combination locks; Puzzle locks with two or more push or pull knobs, slides, or the like

Definitions

  • the present invention relates generally to a mechanical digital lock, and more particualrly to a mechanical digital lock that is operable through a series of mechanical operations actuated by the depression of digital keys.
  • the lock comprises a combination of essential mechanisms including a plurality of key means, digital selecting means, identifying means, locking means and automatic resetting means.
  • the number of digital combinations is enormous, and the lock cannot be opened unless the predetermined digitals are sequentially depressed on the key board. Once the lock is opened, it can be automatically reset. A change of combination of digitals can easily be effected manually without using any tool. With its novel structure, it is highly reliable.
  • the present invention is characterized in that operation of a key in its correct turn causes movement of a first locking member from a position which prevents retraction of the locking means to a position which allows retraction, and operation of that key out of sequence additionally causes movement of a second locking member in tandem with the first locking member which second locking member prevents retraction; the coupling between the first and second.locking members, which allow movement in tandem, being bro.ken by a correct preceding key operation.
  • the new mechanical digital lock can have mechanical means for identifying digital sequence. Key depression of a wrong sequence will result in a deadlock condition, and until the lock is manually reset it cannot be opened.
  • the lock can also provide an automatic resetting means which would be effected automatically after the lock is opened.
  • the lock can be reapplied without additional operation.
  • the lock can have a unique design of lock core and latch which is suitable both for use on doors of left and right swings, and it can be of simple construction, to enable easier manufacture and installation, especially suitable for use on any kind of door.
  • the mechanical digital lock shown comprises: an assembly of case 1, frame 2, key means 3, digital selecting means 4, identifying means 5, core plate 6, latch means 7, resetting means 8, knob 9, inside opening means 10, base plate 11 and face plate 12.
  • the case 1 is composed of an upper case 1a and a lower case 1b, and detachably mounted by screws on the side walls of the base plate 11.
  • the case encloses the whole mechanical means M of the lock.
  • the upper case is detachably mounted upon the upper end of the lower case 1b with screws.
  • the frame 2 comprises a pair of side walls 21-21 and two connecting plates 22 to hold tight a key panel box 31 with screws.
  • Mechanical means M is mounted within the frame 2.
  • the key means 3 is mounted at the upper most section of the frame 2 on the connecting plate 22 thereof.
  • the key means 3 comprises a key panel box 31, a plurality of keys 34, say ten in the present embodiment, representing usually numerals 0-9 and/or characters as required.
  • the keys 34 are retained in key holes 33 provided in the key panel box 31 and each is biased by a spring 32 from behind.
  • Key rod 35 extends from the back of each key 34 into the case 1.
  • the ten keys may be arranged into two rows, five in the upper row and five in the lower row. Since it is de.sirable to arrange the end of key rods 35 into a single row to facilitate operation without interference, the ends 36 of rods 35 are bent as shown in Figure 4.
  • Digital selecting means 4 is disposed at a somewhat lower position than key means 3, and it comprises a number of sets of selecting arms 41 arranged parallel from front to rear; the number of sets of arms chosen in this embodiment is six, corresponding to the predetermined number of digits. Hence each of the six inserts 42 is provided to be detachably and selectively inserted on one of the upper ends of the sets of arms 4 1 .
  • Each set of selecting arms 41 comprises a number of arms corresponding the number of the keys, in this case, ten.
  • Each member of arm set 41 comprises an upwardly extended upper arm 41a and each set has a lower arm 41b extending from the lower end of the ten arms 41 in the set. Since each lower arm having forwardly bent tip 411 extends from a different set of arms, to avoid their overlapping, each of the six sets of arms is consolidated to provide axle plates 41c at their ends in bearing socket 43 to be pivotally mounted on the side wall 21 of the frame 2, so that each set of arms can swing freely about the axle.
  • the axles 41c may be disposed at two different levels.
  • the upper/ lower arms 41a/41b of the arm 41 may be bent to a different extent of step with various length of horizontal part, so that the tips 411 can fall within one plane, where the identifying means is located.
  • each upper arm 41a of the ten arms in the set preferably has one or two positioning holes 412 to facilitate the insertion of inserts 42.
  • the position is set by projecting nipples 421 provided inside the socket 42a of the inserts 42 to lock into the respective positioning holes 412.
  • Each set of the six sets of selecting arms 41 is provided with one of such inserts 42.
  • Upper arm 42b of the insert 42 extends forwardly and receives the touching of the end 36 of the rods 35 of the depressed keys. A gap is therefore reserved between the rod end 36 and the upper arm 42b of the insert 42.
  • the upper arm 42b Since it is desireable that the upper arm 42b is in alignment with the single row rod ends 36, it is necessary to bend the upper arms 42b, except the one closest to the key, into stepped shape, and the extent of bend varies increasing the length of the horizontal portion from left to right. It is also necessary that the inserts 42 are so placed from the set closest to the key to the furthest set, according to the predetermined order of digital numbers.
  • the identifying means 5 is located under the selecting means 4, such as shown in Figures 7 to 9. It comprises a front fixing plate 51a, a rear fixing plate 51b a guide plate 52 fixed between the two plates 51a, 51b. A plurality of sets (corresponding to the number of selecting arm sets 41, i.e. six) of front sliding blocks 53a and rear sliding blocks 53b are slidably mounted in pairs on the guide plate 52. A claw 54 is pivotally disposed on each plate 52 and between adjacent pairs of blocks 53a-53b, a stopper 55 is disposed on each front sliding block 53a, except on the first or furthest left block 53a. A return spring 56 is provided between each front sliding block 53a and front fixing plate, and a compression spring 57 is disposed between each front and real sliding block, 53a, 53b.
  • the front fixing plate 51a and the rear fixing plate 51b preferably both have a substantially "U" shaped cross section; however, plate 51a is bigger than plate 51t and the guide plate 52 is clamped between them and fixed t screws.
  • Guide grooves 521 corresponding to the number of selecting arm sets 41 are disposed at even spacing on the guide plate 52.
  • the front and rear sliding blocks 53a, 53b are slid ably mounted in pairs on the plate 52 with their sliding channel formed on individual legs 53a' and 53b' inserted into the guiding groove 521.
  • a recess 531 is formed in the front wall of the front sliding block 53a, a spring 56 with one of its ends retained in the recess 531 and the other end pushes against the front fixing plate 51 Upon each front sliding block 53a is a wedge like projecti 532 facing a straight rear wall 533. At the back of this rear wall is provided a spring retaining stud 534, on the front side of the wall 533, a hook like projection 535 is disposed. Between projections 532 and 535, a stopper 55 is mounted with a pivot 551.
  • the rear sliding block 53b has a rear wall 501, and a spring retaining stud 502 is disposed on the inner side facing the stud 534 on front sliding block 53a. A compression spring 57 is retained between these two studs.
  • An arm 503 extends forward from the side of the rear slidi block 53b and a triangular shaped stopper 504 is formed at the tip of the arm 503 to be almost in contact with the projected end 552 of the stopper 55.
  • the arm 503 is attached to block 53b, such that if stopper 504 is forced to move, by end 552.for example, then block 53b will be caused to move.
  • a hook shaped claw 54 is pivoted through a pin 541 to the guide plate 2, at a position between adjacent groove 521, and is biased by a spring 542 so that the incline 544 of the claw end 543 is forced constantly against the incli on projection 535.
  • the front end 543 of the claw 54 keeps an appropriate gap with the front end 552 of the stopper 55
  • Lock core plate 6 having a side cross-section of "L” is disposed under the identifying means 5, as shown in Figures 10, 11.
  • the core plate 6 comprises a front plate 61, a back plate 62 and a bottom plate 63 on the front plate 61, and one each long and short claw 64, 65 are formed therefrom.
  • a teeth portion 66 having a plurality of teeth is formed on the back plate 62, in a position under the blocks 53a, 53b, with the projected teeth just engaging into a continuous groove 59 formed between the legs 53a', 53b' of the blocks 53a, 53b.
  • a rectangular aperture 68 with a vertical flap 67 punched out along one side is disposed at the centre of the front plate 61 of the core plate 6, and one pair of arms 621, 631 extend from sides of the back plate 62 and the bottom plate 63, respectively, to be slidably inserted into pairs of guides 23 provided on side walls 21 of the frame 2 for the supporting of core plate 6.
  • a returning spring 69 is provided on the left arm 621 to bias the core plate agains the right side wall 21.
  • a revolving arm 60 is pivoted to a pin 601 on the inner centre of the base plate 11, with its upper and lower end engaged respectively to the latch 7 and to the short claw 65, to provide for the door openin
  • Latch means 7 is provided laterally across the central part of the frame 2 and located between the selecting means 4 and the identifying means 5.
  • the base end 73 of the latch 7 is slipped into a closed end nylon socket 25 inserts in one of the horizontal guides 24.
  • a spring 74 is retaine between the socket 25 and the central recess 72 to bias the latch to cause its wedged head to project out of the side wall 21.
  • a follower member 75 having a left plate 75a and a right plate 75b is detachably clamped to the middle of the latch 7.
  • the bent end of the long claw 64 extends at the right side of the left follower plate 75a as drawn, so that when the core plate 6 moves to the left, claw 64 will pull the follower member 75 to the left against the spring 74, to cause retreat of the wedge head 71 into the frame 2, allowing the door to be opened.
  • the resetting means is located under the identifyin means 5 and in parallel with the core plate 6, as shown in Figure 12- It comprises a supporting rack 81 preferably having a substantially "S" shaped cross-section.
  • the rack 81 with its two ends passing through two vertical posts 82 is movable up and down freely.
  • the lower end of each post 82 is fixed at the lower part of the frame 2, while the upper end passes through the bottom of the guide plate 52 and is limited by a snap ring 83.
  • a spring 84 is provided at the lower end of the post in a position between the supporting rack 81 and the frame 2, to bias the rack upward.
  • a spacing sleeve is disposed on the post 82 between the guide plate 52 and the rack 81, to keep a constant distance therebetween.
  • a plurality of locking pins 86 corresponding to the position of the front sliding block 53a are disposed to have their upper ends passing through the guide plate 52 and projected thereabove under the front incline 536 of the block 53a, while their lower ends are allowed to stick out under the lower deck 81] of the rack 81 to a certain extent.
  • a snap ring 87 is provided at the middle section of the locking pin 86 and just under the upper deck 81U of the rack 81. Between the snapring 87 and the middle deck 81M of the rack 81, a spring 8 is provided to bias the pin 86 upwards. When the front sliding block 53a moves forward, the pin 86 will fall withir the recess 537 and lock the block in position.
  • a knob 9 is provided at the centre front of the frame 2, with a knob handle 90 disposed out of the face plate 12, and socket sleeve 91 extending inwardly through the face plate 12 and base plate 11 to reach the coreplate 6.
  • a flange 92 is formed at the inner end from the centre of the flange, and a reset actuating plate 93 is further extended through the aperture 68 to reach the lower deck 81L of the supporting rack 8.
  • a core actuating plate 94 is bent from the upper edge of the flange 92 to engage with the vertical flap 67. When the knob 9 is turned counterclockwis the core actuating plate 94 engages the flap 67 to force the core plate to the left to open the lock. When the- knob is turned clockwise, the reset actuating plate 93 forces the rack 8 to move downwardly to accomplish manual reset.
  • An inside opening means 10 is provided at the cent: of the lower case 1b. It has a turning knob 101 having a shaft 102 retained by a bearing 103 fixed to the lower cas 1b and passed into the frame 2.
  • a cam 104 is provided at the end of the shaft 102 to engage with the right plate 75 of the follower member 75. When the knob 101 is turned, the cam 104 actuates the follower 75 to allow the door to be opened directly from inside without the aid of the core plate 6.
  • the base plate 11, as shown, serves to connect the face plate 12 from outside as well as the whole frame 2, and for fastening onto the inner wall of the door.
  • the face plate 12 is a metal cover to be connected with the knob 90.
  • a rectangular opening 121 is provided to facilitate display of the key panel 34 of the key panel bo: 3.
  • Three hollow posts 122 stick out to facilitate bolts extending from the base plate 11 to pass through and fasten thereon. The variation in door thickness can be accommodated through the adjustment of the thread length of these bolts.
  • Figure 13 shows one way of installing a lock.
  • a rectangular opening h1 a round opening h2 and three bolt holes h3 are made in the door.
  • a face plate 12 is installed from outside of the door with three threaded posts 122 which pass through the door of thickness D.
  • the base plate 11 is installed from inside, the socket sleeve 91 is aligned with the knob 90, and are force fitted A little turning may be helpful to enable the groove provided on the sleeve 91 to be matched exactly with a projection provided inside the knob base.
  • the three bolts are passed from inside the base plate 11, through the corresponding bolt holes formed on the base plate 11, they are fastened into three threaded posts122 of the face plate 12, so that the base plate 11 is fitted tightly against the face plate.12 with the door thickness inbetween.
  • the fixing of the base plate 11 on the door D is further reinforced by four wood screws.
  • the pre-assembled frame including key panel box, selecting means, identifying means, resetting means, latch means, core plate etc. may be inserted from above so that the latch enters into the side wall opening on the base plate 11.
  • the whole frame can be forced in with ones hands, and door knob 9 may be turned a little to enable the flap 67 on the core plate 6 to be close to the core plate actuating plate 94 on the socket sleeve 91 of the knob 9. Both sides of the frame 2 are hence enclosed in the side walls of the base plate 11.
  • the incline of projection 535 forces the claw 54 to move about the pivot 541 towards the second front sliding block 53a, towards the right as drawn.
  • the front end 543 of the claw 54 pushes the stopper 55 on the second front block 53a toward the right as drawn, until the end 543 falls against the side wall of the second front block 53a and forces the front end 552 of the stopper 55 to retreat.
  • the front'end 552 of the stopper 55 is released from the stopper 504 of the arm 503 which extends from the rear sliding block 53b. Therefore, when the second digit of the combination is depressed on the key panel 34, the corresponding selecting arm set 41 repeats the function as-before.
  • the lower arm 41b pushes forward the second front block 53a to move ahead independently and leaves a gap "g" between legs 53a'-53b' of the second set blocks 53a, 53b and releasesteeth 66 of the core plate 6. This process repeats until all the six (or more) predetermined digits are depressed on the key panel.
  • the six gaps "g” thus formed allow free passage of the teeth 66 of the core plate 6, so that when knob 9 is turned left to open the lock, latch 7 is forced toward the left by the actuating plate 94 through flap 67 (see Figure 10), and the long claw 64 on the core plate 6 in turn pushes latch 7 toward left against the spring 74, and wedge head 71 of the latch 7 thus retreats into the case 1, allowing the lock to be opened.
  • the identifying means 5 serves automatically to loc up when a key is depressed in error or in a wrong' sequence. Move particularly, the multi-sets of front/rear sliding blocks have to be operated in the correct sequence. A wrong depression or depressions following a wrong digital sequence will cause a front sliding block other than the first to be moved forward along the guide groove 521. Since the preceeding or the first digital number was not depressed in the first place, the first front block has not been moved forward, the first claw 54 was not rotated and the second front block or the front block of the wrongly depressed digit number is prevented from moving by stopper 55 hearing against stopper 504 of arm 503 extended from the rear block 53b. The forward movement of the second front block 53a would move the rear block 53b at the same time.
  • the knob 101 If it is desired to open the lock from within, one can turn the knob 101 clockwise, the cam 104 in turn moves the follower 75 of the latch 7 without affecting th E core plate 6 and the identifying means 5, to retract the - latch 7 directly to allow opening of the door.
  • the knob 101 By releasing the knob 101, the latch 7 biased by the spring 74 resumes its position, and the knob 101 is restored alsc through the action of follower 75 and cam 104.
  • the above refers to a door with a lock mounted on the right side, as viewed from outside.
  • the lock of the present invention is also capable of being installed to the left side of the door.
  • the alteration can be easily effected by reversing the latch 7 and placing nylon socket 25 at the other end of the lock.
  • the wedg head of the latch is placed to the left, the base end 73 i placed to the right, and the socket 25 is covered at the base end 73.
  • the follower member is relocated reversely which can be done readily by the manufacturer or otherwise
  • the lock opening operation then works as follows: the knob is still to be turned counterclockwise, and the core plate moves to left accordingly. Since the follower member 75A is reversely relocated, the plate on the follow member 75A is no longer moved by the long claw 64, only the upper end of the revolving arm 60 engages with the right side of the plate 75b, hence the short claw 65 force the lower end of arm 60 to move left, and arm 60 rotates about the centre 601. to cause its upper end to move right and to push latch 7 toward the right through plate 75b. The latch 7 retreats to allow the lock to be opened. The revolving arm 60 was inactive in the right-mounted lock, since it did not-engage with either of the plates 75a, 75b;
  • Combination change can be effected manually by changing the positions of inserts 42, as follows: open upper case la, take down all the old inserts, then relocate according to a new desired digital number.
  • the inserts are to be placed on one of the upper arms 41a of each set of ten, the location of the inserts in the sets corresponds to the number sequence to be depressed on the key panel.
  • Upper end 41a of the arm sets 41 can be marked with number from 0-9, for the convenience of recognition.

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  • Lock And Its Accessories (AREA)
EP19800304715 1980-12-23 1980-12-23 Mechanisches digitales Schloss Ceased EP0054591A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19800304715 EP0054591A1 (de) 1980-12-23 1980-12-23 Mechanisches digitales Schloss

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19800304715 EP0054591A1 (de) 1980-12-23 1980-12-23 Mechanisches digitales Schloss

Publications (1)

Publication Number Publication Date
EP0054591A1 true EP0054591A1 (de) 1982-06-30

Family

ID=8187340

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19800304715 Ceased EP0054591A1 (de) 1980-12-23 1980-12-23 Mechanisches digitales Schloss

Country Status (1)

Country Link
EP (1) EP0054591A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107605250A (zh) * 2017-10-31 2018-01-19 练务炎 机械顺序密码锁
CN112537557A (zh) * 2021-01-06 2021-03-23 滨州学院 一种应用于航空装载的航空集装箱

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1456957A (en) * 1921-05-12 1923-05-29 James O Wilson Permutation lock
DE2746123A1 (de) * 1976-12-02 1978-06-08 Nakamura Katori Als sicherheitsschloss ausgebildetes tuerschloss

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1456957A (en) * 1921-05-12 1923-05-29 James O Wilson Permutation lock
DE2746123A1 (de) * 1976-12-02 1978-06-08 Nakamura Katori Als sicherheitsschloss ausgebildetes tuerschloss

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107605250A (zh) * 2017-10-31 2018-01-19 练务炎 机械顺序密码锁
CN107605250B (zh) * 2017-10-31 2023-02-21 练务炎 机械顺序密码锁
CN112537557A (zh) * 2021-01-06 2021-03-23 滨州学院 一种应用于航空装载的航空集装箱
CN112537557B (zh) * 2021-01-06 2022-04-12 滨州学院 一种应用于航空装载的航空集装箱

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19811029

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Effective date: 19840916

RIN1 Information on inventor provided before grant (corrected)

Inventor name: DAY, SAN-TONG

Inventor name: WANG, DAVID TIN-YUIA