EP0139796A1 - Rohrförmiges Schloss - Google Patents
Rohrförmiges Schloss Download PDFInfo
- Publication number
- EP0139796A1 EP0139796A1 EP83306515A EP83306515A EP0139796A1 EP 0139796 A1 EP0139796 A1 EP 0139796A1 EP 83306515 A EP83306515 A EP 83306515A EP 83306515 A EP83306515 A EP 83306515A EP 0139796 A1 EP0139796 A1 EP 0139796A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pin
- tumblers
- plug
- pick
- lower pin
- 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.)
- Granted
Links
- 230000000903 blocking effect Effects 0.000 description 2
Images
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
- E05B27/02—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in operated by the edge of the key
- E05B27/08—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in operated by the edge of the key arranged axially
- E05B27/083—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in operated by the edge of the key arranged axially of the split-pin tumbler type
Definitions
- a correct key J is inserted into the known lock to lower the upper pin-tumblers C which in turn press down the lower pin-tumblers H to the correct height so as to enable the upper plug A to turn, thus allowing the upper plug A to revolve and release the bolt B.
- Fig. 14, Fig. 15 and Fig. 16 and 17 illustrate the use of the pick tools; first, insert each pin R of the pick as shown in Fig. 17 into each upper pin hole D to lower the upper pin-tumblers C, which in turn push the lower pin-tumblers H to the bottom of the lower pin holes D. Then, turn the pick tool clockwise and counterclockwise alternately, thereby slightly rotating the upper plug A clockwise and counterclockwise al ternately.
- the reason why the upper plug A can slightly be rotated clockwise and counter clockwise is that the diameter of the upper pin-tumbler C must be smaller than that of the upper pin hole D.
- the lower pin-tumblers H Since the lower pin-tumblers H are spring loaded, they will go upwards until their tops are in contact with the bottom surface of the upper plug A while the upper plug A is slightly rotated clockwise and counterclockwise, i.e. the lower pin-tumblers H are lifted to the correct height. Thus the upper plug A is allowed to revolve and .the bolt B is released.
- Fig. 18 illustrates the use of the pick tool shown in Fig. 9 to pick the known lock.
- the pick tool shown in Fig. 9 slightly insert the pick tool shown in Fig. 9 into the upper plug A, and at the same time turn it clockwise and counterclockwise alternately.
- the upper plug A is rotated clockwise and counterclociwise alternately.
- the lower pin-tumblers H will go downward until their tops are in contact with the bottom surface of the upper plug A while the upper plug A is being slightly rotated clockwise and counterclockwise, i.e. the lower pin-tumblers H are lowered to the correct height.
- the upper plug A is allowed to revolve and the bolt B is released.
- the known tubular lock is easy to pick and should be improved.
- the present invention relates to a tubular lock, and more particularly to one comprising a number of lower pin-tumblers having flanges in association with the same number of lower pin holes provided with recesses, making the lock very difficult to pick and offering a high degree of security under ordinary circumstances.
- the object of the present invention is to provide an improved tubular lock which is difficult to pick and to offer a high degree of security under ordinary circumstances.
- FIG. 1 and Fig. 2 there is shown the present invention comprising a housing 200 in which a plurality of upper pin-tumblers 3.
- a bolt 20, an upper plug 2, a plurality of lower pin-tumblers 1, a plurality of springs 6, and a lower plug 4 are mounted.
- Each upper pin-tumbler 3 has length different from the others, and the same is true to the lower pin-tumblers.
- the upper pin-tumblers 3 are inserted into upper pin holes 21 of the upper plug 2.
- the upper plug 2 is fixed to the bolt 20.
- Each lower pin-tumbler 1 is provided with two flanges 11.
- the lower pin-tumblers 1 together with the springs 6 are inserted into lower pin holes 41 of the lower plug 4.
- the number of the upper pin-tumblers 3 is equal to the number of the lower pin-tumblers 1 and is also equal to the number of the springs 6.
- the bolt 20 extends through the upper plug 2, the lower plug 4, a blocking plate 50 and a locking plate 60, and is screwed into a nut 70.
- Each lower pin-tumbler 1 is aligned with each upper pin-tumbler 3 and extends from the lower plug 4 into each upper pin hole 21.
- the combination of the upper plug 2, the bolt 2, and the lower plug 4 are installed into the housing 200 and fixed by means of inserting a pin 80 into the lower plug 4.
- the pin-tumbler are spring-loaded so that they are always in the locking position except when the proper key is inserted.
- each recess 411 is shown at the upper part of each pin hole 41 of the lower plug 4.
- the depth of each recess 411 is different from the others.
- a proper key 5 being inserted into the lock according to the preferred embodiment of the present invention to lower the upper pin-tumblers 3 which in turn press down the lower pin-tumblers 1 to the correct height so as to allow the upper plug 2 to revolve and release the bolt 20.
- Fig. 6 there is shown the height of the flange 11 being A, then the depth of the recess 411 is A + 0.1A, and the length of the upper end 12 is 2A; let the depth of the lower pin hole 41 be B, then the diameter of the recess 411 is 1.2B.
- Fig. 7 shows why it is impossible to use the pick tool shown in Fig. 17 to pick the lock according to the present invention.
- Each pin R of the piew tool shown in Fig. 17 is inserted into each upper pin hole 21 to lower the upper pin-tumblers 3 which in turn push the lower pin-tumblers 41 to the bottom of the lower pin holes 41. Then , turn the pick tool clockwise and counterclockwise alternately, thereby slightly rotating the upper plug 2 clockwise and counterclockwise alternately.
- the reason why the upper plug 2 can slightly be rotated clockwise and counterclockwise is that the diameter of the upper pin-tumbler 3 must be smaller than that of the upper pin hole 21.
- the lower pin-tumblers 4 Since the lower pin-tumblers 4 are spring-loaded, they will go upwards until the flanges 11 are in contact with the bottom surface 22 of the upper plug 2 while the upper plug 2 is being slightly rotated clockwise and counterclockwise. As a result, the upper ends 12 of the lower pin-tumblers 1 will go into the pin holes 21 of the upper plug 2. In other words, the rotation of the upper plug 2 is prevented by the lower pin-tumblers 1, i.e. it is impossible to pick -the lock according to the present invention.
- Fig. 8 shows why it is impossible to use another pick tool shown in Fig. 9 to pick the lock according to the present invention.
- the pick tool shown in Fig. 9 is first slightly inserted into the upper plug 2, and at the same time is turned clockwise and counterclockwise alternately.
- the upper plug 2 is slightly rotated clockwise and counter clockwise alternately.
- the lower pin-tumblers 1 will go downward until the flange 11 of the lower pin-tumbler is in contact with the recess 411.
- the rotation of the upper plug 2 is prevented by the upper ends 12 of the lower pin-tumblers 1, i.e. it is impossible to pick the lock according to the present invention.
- each flange 11 may be different one another and the same is true to the recesses.
Landscapes
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
- Buckles (AREA)
- Lock And Its Accessories (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE8383306515T DE3375418D1 (en) | 1983-10-26 | 1983-10-26 | Improved tubular lock |
EP19830306515 EP0139796B1 (de) | 1983-10-26 | 1983-10-26 | Rohrförmiges Schloss |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19830306515 EP0139796B1 (de) | 1983-10-26 | 1983-10-26 | Rohrförmiges Schloss |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0139796A1 true EP0139796A1 (de) | 1985-05-08 |
EP0139796B1 EP0139796B1 (de) | 1988-01-20 |
Family
ID=8191327
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19830306515 Expired EP0139796B1 (de) | 1983-10-26 | 1983-10-26 | Rohrförmiges Schloss |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0139796B1 (de) |
DE (1) | DE3375418D1 (de) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4683739A (en) * | 1986-07-21 | 1987-08-04 | Hughes Donald R | Key operated lock |
EP0325634A1 (de) * | 1987-07-07 | 1989-08-02 | Fort Lock Corporation | Sicherheitsschloss mit stiftzuhaltungen |
EP0556505A2 (de) * | 1991-12-20 | 1993-08-25 | Lu, Den-Yi | Schloss mit axial angeordneten Stiftzuhaltungen |
EP0964120A1 (de) * | 1998-06-08 | 1999-12-15 | SERRATURE MERONI S.p.A. | Röhrenförmiges Schloss |
GB2375371A (en) * | 2001-05-10 | 2002-11-13 | Trojan Hardware & Designs Ltd | Key and lock arrangement |
GB2512274A (en) * | 2013-02-08 | 2014-10-01 | William Frederick Crosbie | Rotational pin lock |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1876907U (de) * | 1963-06-06 | 1963-08-01 | Karrenberg Fa Wilhelm | Schlosszylinder. |
GB940428A (en) * | 1958-12-19 | 1963-10-30 | Lowe & Fletcher Ltd | Improvements relating to locks |
-
1983
- 1983-10-26 EP EP19830306515 patent/EP0139796B1/de not_active Expired
- 1983-10-26 DE DE8383306515T patent/DE3375418D1/de not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB940428A (en) * | 1958-12-19 | 1963-10-30 | Lowe & Fletcher Ltd | Improvements relating to locks |
DE1876907U (de) * | 1963-06-06 | 1963-08-01 | Karrenberg Fa Wilhelm | Schlosszylinder. |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4683739A (en) * | 1986-07-21 | 1987-08-04 | Hughes Donald R | Key operated lock |
EP0325634A1 (de) * | 1987-07-07 | 1989-08-02 | Fort Lock Corporation | Sicherheitsschloss mit stiftzuhaltungen |
EP0325634A4 (en) * | 1987-07-07 | 1990-10-24 | Fort Lock Corporation | High security pin tumbler lock |
EP0556505A2 (de) * | 1991-12-20 | 1993-08-25 | Lu, Den-Yi | Schloss mit axial angeordneten Stiftzuhaltungen |
EP0556505A3 (en) * | 1991-12-20 | 1993-11-03 | Chang Jie Ind Co Ltd | Axial pin tumbler lock |
EP0964120A1 (de) * | 1998-06-08 | 1999-12-15 | SERRATURE MERONI S.p.A. | Röhrenförmiges Schloss |
GB2375371A (en) * | 2001-05-10 | 2002-11-13 | Trojan Hardware & Designs Ltd | Key and lock arrangement |
GB2375371B (en) * | 2001-05-10 | 2004-06-16 | Trojan Hardware & Designs Ltd | Window handle arrangement |
GB2512274A (en) * | 2013-02-08 | 2014-10-01 | William Frederick Crosbie | Rotational pin lock |
Also Published As
Publication number | Publication date |
---|---|
EP0139796B1 (de) | 1988-01-20 |
DE3375418D1 (en) | 1988-02-25 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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AK | Designated contracting states |
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17P | Request for examination filed |
Effective date: 19851107 |
|
17Q | First examination report despatched |
Effective date: 19860714 |
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