EP2003273A2 - Lock body for a keystroke mechanical code lock - Google Patents
Lock body for a keystroke mechanical code lock Download PDFInfo
- Publication number
- EP2003273A2 EP2003273A2 EP20080250489 EP08250489A EP2003273A2 EP 2003273 A2 EP2003273 A2 EP 2003273A2 EP 20080250489 EP20080250489 EP 20080250489 EP 08250489 A EP08250489 A EP 08250489A EP 2003273 A2 EP2003273 A2 EP 2003273A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- pillar
- lock
- hole
- passage
- keystroke
- 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- Withdrawn
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B35/00—Locks for use with special keys or a plurality of keys ; keys therefor
- E05B35/08—Locks for use with special keys or a plurality of keys ; keys therefor operable by a plurality of keys
- E05B35/083—Locks for use with special keys or a plurality of keys ; keys therefor operable by a plurality of keys with changeable combination
Definitions
- the present invention relates to a code lock, and particularly to a lock body of a keystroke mechanical code lock.
- a keystroke mechanical code lock provides high security, stable performance, attractive appearance, and convenient application, allowing code conversion without dismantlement of the lock. However, it is easy to decode due to structure of the lock body of the lock, which impairs security.
- the purpose of the present invention is to provide a lock body of a keystroke mechanical code lock that cannot be easily decoded. It will be appreciated that a keystroke mechanical code lock may contain several lock bodies of the present invention.
- a lock body for a keystroke mechanical code lock comprising: a code conversion pillar, a spring, a passage pillar mounted in a hole body of the lock body; a demountable fixedly-connected cover plate mounted on the lock body; a frame slide plate slide fitted between the lock body and the cover plate; a key plate and a reset key mounted on the cover plate; and a key plate spring, a reset plug and a reset resilient plate in contact with the key plate;
- the code conversion pillar comprises a deformed pillar body at the upper part thereof, and two cylinder bodies, a lower cylinder body and an upper cylinder body, at the lower part thereof; the lower cylinder body is provided with a slot and a pit in the underside thereof; the diameter of the lower cylinder body of the cylinder is smaller than that of a bottom hole of a hole body of the lock body, while the diameter of the upper cylinder body of the cylinder is bigger than that of the bottom hole of the hole body of the lock body; the passage
- the present invention permits code conversion without dismantlement of the lock, whilst at the same time making decoding difficult, thus achieving a safe and reliable performance.
- Figures 1 to 8 show the lock body 9 of the present invention and the various components that compose the lock body 9.
- a frame slide plate 11 is provided in the keystroke mechanical code lock that comprises the lock bodies of the present invention, the frame slide plate 11 being provided between a demountable fixedly-connected lock body 9 and a lock case 18.
- the frame slide plate 11 is slide fitted between the lock body 9 and the cover plate 10.
- the lock body 9 is provided with two rows of hole bodies 12, each of which contains a code conversion pillar 1.
- each hole body 12 At the bottom of each hole body 12 is a bottom hole with a diameter smaller than that of the hole body 12 and having three notches on the interior wall.
- a code conversion pillar 1 and a passage pillar 2 are located within each hole body 12.
- Figures 2, 3 and 4 show the code conversion pillar 1, comprises a deformed pillar body 3 at the upper part thereof, having a cross section of semicircular or other geometric shape, and two cylinders at the lower part thereof, having different diameters between top and bottom.
- the bottom cylinder which is known as the lower cylinder body 7, is provided with a slot 25 and a pit 24 in the underside thereof.
- On the exterior wall of the underside of the lower cylinder body 7 are three equal bosses.
- the diameter of the lower cylinder body 7 is smaller than that of the bottom hole of the hole body 12 of the lock body 9.
- the top cylinder known as the upper cylinder body 6, has a diameter that is bigger than that of the bottom hole of the hole body 12 of the lock body 9.
- Figures 5, 6 and 7 show the passage pillar 2, which is provided with a hole 14 at the top thereof and with a deformed hole 15 at the bottom thereof, the deformed hole 15 having the same shape as the deformed pillar body 3 (e.g. semicircular).
- the passage pillar 2 comprises an upper passage slot 4, a lower passage slot 5 and a middle passage slot 21 evenly in three directions with an equal slot opening.
- the deformed pillar hole 15 is provided to locate the passage pillar 2 on the pillar body 3.
- a spring 8 is mounted on the deformed pillar body 3 of the code conversion pillar 1 between the passage pillar 2 and the upper cylinder body 6.
- the lower cylinder body 7 of the code conversion pillar 1 is positioned in the bottom hole of the hole body 12, with the three bosses of the lower cylinder body 7 embedded in the three notches that are provided on the interior wall at the bottom hole of the hole body 12.
- the upper cylinder body 6 of the code conversion pillar 1 is positioned in the hole body 12.
- a demountable fixedly-connected cover plate 10 Inside the lock body 9, at the top of the passage pillar 2, is a demountable fixedly-connected cover plate 10.
- a holding slot In each of the hole bodies 12 of the corresponding lock body 9 is a holding slot, in which a key plate 13 and a reset plate are located.
- the bottom of the key plate 13 is inserted into the hole 14 at the top of the passage pillar 2.
- the top of the key plate 13 is located in contact with one end of a key spring 20.
- the other end of the key spring 20 is located in contact with the interior side of the key plate cover 19 in the hole of a lock case 18.
- the key plate 13 is provided with two sets of barbs 22 and 23, which protrude from on one side of the key plate 13.
- the barb 23 of the key plate 13 can be positioned in a lower position after compressing a reset resilient plate 17 on the side of a reset plug 16 that can slide in the lock body 9. With the top surface of the key plate barb 23 in contact with the bottom surface of the hook of the reset resilient plate 17, the position of the passage pillar 2 relative to that of the frame slide plate 11 is fixed.
- the process of setting a new code involves revolving each of the code conversion pillars, to set the status thereof.
- the three states of the conversion pillars comprise:
Landscapes
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
- Lock And Its Accessories (AREA)
Abstract
A keystroke mechanical code lock including a lock body (9) holding a code conversion pillar (1), a spring, a passage pillar (2), a cover plate (10). The code conversion pillar (2) is in the form of a deformed pillar body (3) at the upper part, and of cylinders at the lower part with different diameters between top and bottom. The cylinder is provided with a slot and a pit at the underside of the lower cylinder body (7). The diameter of the lower cylinder body (7) of the cylinder is smaller than that of a bottom hole of a hole body of the lock body, while the diameter of the upper cylinder body of the cylinder bigger than that of the bottom hole of the hole body of the lock body. The passage pillar (2) is provided with a hole (14) at the top, and with a deformed hole (15) at the bottom that has the same shape as the deformed pillar body (3) of the code conversion pillar. The passage pillar (2) is provided on the pillar body with an upper passage slot, a middle passage slot and a lower passage slot evenly in three directions with an equal slot opening. The structure of code conversion pillar (1) and passage pillar (2) as well as cooperation of other parts of the keystroke mechanical code lock, the lock allows code conversion without dismantlement of the lock.
Description
- The present invention relates to a code lock, and particularly to a lock body of a keystroke mechanical code lock.
- A keystroke mechanical code lock provides high security, stable performance, attractive appearance, and convenient application, allowing code conversion without dismantlement of the lock. However, it is easy to decode due to structure of the lock body of the lock, which impairs security.
- The purpose of the present invention is to provide a lock body of a keystroke mechanical code lock that cannot be easily decoded. It will be appreciated that a keystroke mechanical code lock may contain several lock bodies of the present invention.
- The purpose of the present invention is achieved as below. A lock body for a keystroke mechanical code lock comprising: a code conversion pillar, a spring, a passage pillar mounted in a hole body of the lock body; a demountable fixedly-connected cover plate mounted on the lock body; a frame slide plate slide fitted between the lock body and the cover plate; a key plate and a reset key mounted on the cover plate; and a key plate spring, a reset plug and a reset resilient plate in contact with the key plate; wherein the code conversion pillar comprises a deformed pillar body at the upper part thereof, and two cylinder bodies, a lower cylinder body and an upper cylinder body, at the lower part thereof; the lower cylinder body is provided with a slot and a pit in the underside thereof; the diameter of the lower cylinder body of the cylinder is smaller than that of a bottom hole of a hole body of the lock body, while the diameter of the upper cylinder body of the cylinder is bigger than that of the bottom hole of the hole body of the lock body; the passage pillar is provided with a hole at the top thereof, and with a deformed hole which has the same shape as the deformed pillar body, at the bottom thereof; and the passage pillar comprises an upper passage slot, a lower passage slot and a middle passage slot distributed evenly in three directions with equal slot openings.
- Because of this structure of code conversion pillar and passage pillar as well as cooperation of other parts of the keystroke mechanical code lock, the present invention permits code conversion without dismantlement of the lock, whilst at the same time making decoding difficult, thus achieving a safe and reliable performance.
- In the drawings, which show a preferred embodiment of the present invention:
-
Figure 1 is a structural schematic view of a keystroke mechanical code lock comprising the lock bodies of the present invention; -
Figure 2 is a structural schematic view of the code conversion pillar of the embodiment; -
Figure 3 is a top view ofFigure 2 ; -
Figure 4 is a bottom view ofFigure 2 ; -
Figure 5 is a structural schematic view of the passage pillar of the embodiment. -
Figure 6 is a top view ofFigure 5 ; -
Figure 7 is a bottom view ofFigure 5 ; -
Figure 8 is a structural schematic view of the key plate; -
Figure 9 is a view of a code disabling state; -
Figure 10 is a view of a single-press code state; -
Figure 11 is a view of a double-press code state; -
Figure 12 is a bottom view ofFigure 9 ; -
Figure 13 is a bottom view ofFigure 10 ; and -
Figure 14 is a bottom view ofFigure 11 ; -
Figures 1 to 8 show the lock body 9 of the present invention and the various components that compose the lock body 9. Aframe slide plate 11 is provided in the keystroke mechanical code lock that comprises the lock bodies of the present invention, theframe slide plate 11 being provided between a demountable fixedly-connected lock body 9 and alock case 18. Theframe slide plate 11 is slide fitted between the lock body 9 and thecover plate 10. The lock body 9 is provided with two rows ofhole bodies 12, each of which contains a code conversion pillar 1. - At the bottom of each
hole body 12 is a bottom hole with a diameter smaller than that of thehole body 12 and having three notches on the interior wall. A code conversion pillar 1 and a passage pillar 2 are located within eachhole body 12. -
Figures 2, 3 and 4 show the code conversion pillar 1, comprises adeformed pillar body 3 at the upper part thereof, having a cross section of semicircular or other geometric shape, and two cylinders at the lower part thereof, having different diameters between top and bottom. The bottom cylinder, which is known as thelower cylinder body 7, is provided with aslot 25 and apit 24 in the underside thereof. On the exterior wall of the underside of thelower cylinder body 7 are three equal bosses. The diameter of thelower cylinder body 7 is smaller than that of the bottom hole of thehole body 12 of the lock body 9. The top cylinder, known as theupper cylinder body 6, has a diameter that is bigger than that of the bottom hole of thehole body 12 of the lock body 9. -
Figures 5, 6 and 7 show the passage pillar 2, which is provided with ahole 14 at the top thereof and with adeformed hole 15 at the bottom thereof, thedeformed hole 15 having the same shape as the deformed pillar body 3 (e.g. semicircular). The passage pillar 2 comprises an upper passage slot 4, alower passage slot 5 and amiddle passage slot 21 evenly in three directions with an equal slot opening. The deformedpillar hole 15 is provided to locate the passage pillar 2 on thepillar body 3. Aspring 8 is mounted on the deformedpillar body 3 of the code conversion pillar 1 between the passage pillar 2 and theupper cylinder body 6. - The
lower cylinder body 7 of the code conversion pillar 1 is positioned in the bottom hole of thehole body 12, with the three bosses of thelower cylinder body 7 embedded in the three notches that are provided on the interior wall at the bottom hole of thehole body 12. - The
upper cylinder body 6 of the code conversion pillar 1 is positioned in thehole body 12. - Inside the lock body 9, at the top of the passage pillar 2, is a demountable fixedly-connected
cover plate 10. In each of thehole bodies 12 of the corresponding lock body 9 is a holding slot, in which akey plate 13 and a reset plate are located. The bottom of thekey plate 13 is inserted into thehole 14 at the top of the passage pillar 2. The top of thekey plate 13 is located in contact with one end of akey spring 20. The other end of thekey spring 20 is located in contact with the interior side of thekey plate cover 19 in the hole of alock case 18. - The
key plate 13 is provided with two sets ofbarbs key plate 13. When thekey plate cover 19 is pressed, thebarb 23 of thekey plate 13 can be positioned in a lower position after compressing a resetresilient plate 17 on the side of areset plug 16 that can slide in the lock body 9. With the top surface of thekey plate barb 23 in contact with the bottom surface of the hook of the resetresilient plate 17, the position of the passage pillar 2 relative to that of theframe slide plate 11 is fixed. - The process of setting a new code involves revolving each of the code conversion pillars, to set the status thereof. The three states of the conversion pillars comprise:
- State 1. A screwdriver can be placed in the
slot 25 on the bottom of the code conversion pillar 1 and the pillar revolved to a position as shown inFigures 9 and 12 . An inward convex arrow on theframe slide plate 11 can move back and forth via thelower passage slot 5 of the passage pillar. Here the lock body is under a normally open state with the code disabled. - State 2. When the code conversion pillar 1 is revolved to the position shown in
Figures 10 and 13 , thekey plate 13 is pressed once to make thebarb 23 tightly buckled on the resetresilient plate 17. This makes the inward convex arrow on theframe slide plate 11 move back and forth via themiddle passage slot 21 of the passage pillar. Here the lock body is under a single-press code state. -
State 3. When the code conversion pillar 1 is revolved to the position shown inFigures 11 and 14 , thekey plate 13 is pressed twice to make thebarb 22 tightly buckled on the resetresilient plate 17. This makes the inward convex arrow on the frame slide plate move back and forth via the upper passage slot 4 of the passage pillar. Here the lock body is under a double-press code state.
Claims (8)
- A lock body for a keystroke mechanical code lock comprising:a code conversion pillar (1), a spring (8), a passage pillar (2) mounted in a hole body (12) of the lock body (9);a demountable fixedly-connected cover plate (10) mounted on the lock body (9);a frame slide plate (11) slide fitted between the lock body (9) and the cover plate (10);a key plate (13) and a reset key mounted on the cover plate (10); anda key plate spring (20), a reset plug (16) and a reset resilient plate (17) in contact with the key plate (13);wherein the code conversion pillar (1) comprises a deformed pillar body (3) at the upper part thereof, and two cylinder bodies, a lower cylinder body (7) and an upper cylinder body (6), at the lower part thereof;
the lower cylinder body (7) is provided with a slot and a pit (24) in the underside thereof; the diameter of the lower cylinder body (7) of the cylinder is smaller than that of a bottom hole of a hole body (12) of the lock body (9), while the diameter of the upper cylinder body (6) of the cylinder is bigger than that of the bottom hole of the hole body (12) of the lock body (9);
the passage pillar (2) is provided with a hole (14) at the top thereof, and with a deformed hole (15) which has the same shape as the deformed pillar body (3), at the bottom thereof; and
the passage pillar (2) comprises an upper passage slot (4), a lower passage slot (5) and a middle passage slot (21) distributed evenly in three directions with equal slot openings. - The lock body of the keystroke mechanical code lock according to claim 1, wherein the deformed pillar body (3) of the code conversion pillar (1) has a semicircular cross section, and the deformed hole (15) of the passage pillar (2) is a semicircle hole.
- The lock body of the keystroke mechanical code lock according to claim 1, wherein the deformed pillar body (3) of the code conversion pillar (1) has a square cross section, and the deformed hole (15) of the passage pillar (2) is a square hole.
- The lock body of the keystroke mechanical code lock according to claim 1, wherein the deformed pillar body (3) of the code conversion pillar (1) has a rectangular cross section, and the deformed hole (15) of the passage pillar (2) is a rectangular hole.
- The lock body of the keystroke mechanical code lock according to any of the preceding claims, wherein the passage pillar (2) is provided on the pillar body with the upper passage slot (4), the middle passage slot (21) and the lower passage slot (5) evenly in three directions with an equal slot opening.
- The lock body of the keystroke mechanical code lock according to any of the preceding claims, wherein three equal bosses protruded on the exterior wall of a lower cylinder body (7) of the cylinder.
- The lock body of the keystroke mechanical code lock according to any of the preceding claims, wherein two sets of barbs protrude from one side of the key plate (13).
- A keystroke mechanical code lock comprising at least one lock body according to any of claims 1 to 7.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2007200528291U CN201056897Y (en) | 2007-06-15 | 2007-06-15 | Lock body of push-key type mechanical puzzle lock |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2003273A2 true EP2003273A2 (en) | 2008-12-17 |
Family
ID=39425738
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20080250489 Withdrawn EP2003273A2 (en) | 2007-06-15 | 2008-02-09 | Lock body for a keystroke mechanical code lock |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2003273A2 (en) |
CN (1) | CN201056897Y (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2485853A (en) * | 2010-11-25 | 2012-05-30 | Kin Kei Hardware Ind Ltd | Code changing mechanism for a mechanical combination lock |
-
2007
- 2007-06-15 CN CNU2007200528291U patent/CN201056897Y/en not_active Expired - Fee Related
-
2008
- 2008-02-09 EP EP20080250489 patent/EP2003273A2/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2485853A (en) * | 2010-11-25 | 2012-05-30 | Kin Kei Hardware Ind Ltd | Code changing mechanism for a mechanical combination lock |
Also Published As
Publication number | Publication date |
---|---|
CN201056897Y (en) | 2008-05-07 |
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Legal Events
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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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AK | Designated contracting states |
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AX | Request for extension of the european patent |
Extension state: AL BA MK RS |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20130903 |