WO1993001964A1 - Bicycles lock - Google Patents

Bicycles lock Download PDF

Info

Publication number
WO1993001964A1
WO1993001964A1 PCT/DK1992/000225 DK9200225W WO9301964A1 WO 1993001964 A1 WO1993001964 A1 WO 1993001964A1 DK 9200225 W DK9200225 W DK 9200225W WO 9301964 A1 WO9301964 A1 WO 9301964A1
Authority
WO
WIPO (PCT)
Prior art keywords
locking
lock
crank
shows
bolt
Prior art date
Application number
PCT/DK1992/000225
Other languages
French (fr)
Inventor
Martin Larsen
Original Assignee
Martin Larsen
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 Martin Larsen filed Critical Martin Larsen
Publication of WO1993001964A1 publication Critical patent/WO1993001964A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62H—CYCLE STANDS; SUPPORTS OR HOLDERS FOR PARKING OR STORING CYCLES; APPLIANCES PREVENTING OR INDICATING UNAUTHORIZED USE OR THEFT OF CYCLES; LOCKS INTEGRAL WITH CYCLES; DEVICES FOR LEARNING TO RIDE CYCLES
    • B62H5/00—Appliances preventing or indicating unauthorised use or theft of cycles; Locks integral with cycles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62H—CYCLE STANDS; SUPPORTS OR HOLDERS FOR PARKING OR STORING CYCLES; APPLIANCES PREVENTING OR INDICATING UNAUTHORIZED USE OR THEFT OF CYCLES; LOCKS INTEGRAL WITH CYCLES; DEVICES FOR LEARNING TO RIDE CYCLES
    • B62H5/00—Appliances preventing or indicating unauthorised use or theft of cycles; Locks integral with cycles
    • B62H5/02—Appliances preventing or indicating unauthorised use or theft of cycles; Locks integral with cycles for locking the steering mechanism
    • B62H5/04—Appliances preventing or indicating unauthorised use or theft of cycles; Locks integral with cycles for locking the steering mechanism acting on the handlebars or equivalent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62H—CYCLE STANDS; SUPPORTS OR HOLDERS FOR PARKING OR STORING CYCLES; APPLIANCES PREVENTING OR INDICATING UNAUTHORIZED USE OR THEFT OF CYCLES; LOCKS INTEGRAL WITH CYCLES; DEVICES FOR LEARNING TO RIDE CYCLES
    • B62H5/00—Appliances preventing or indicating unauthorised use or theft of cycles; Locks integral with cycles
    • B62H5/08—Appliances preventing or indicating unauthorised use or theft of cycles; Locks integral with cycles preventing the drive
    • B62H5/10—Appliances preventing or indicating unauthorised use or theft of cycles; Locks integral with cycles preventing the drive acting on a pedal crank

Definitions

  • the invention concerns an integrated, in-built locking system for bicycles.
  • the system is distinguished by the fact that it locks, and holds while locked, several es ⁇ sential and central parts of the bicycle.
  • EP-OS no. 156 416 and US-PS no. 2 055 149 lock both the handlebars and the crank with one single locking function.
  • the new invention performs not only the equivalent dual locking but also holds fast the rear wheel of the bicycle. This is achieved by inserting a simple but effective locking system in one of the bi ⁇ cycle's rear tubes. Along with the known locking system in the inclined tube and a flexible steel cylinder mounted in the crankcase, this makes it impossible to remove the handlebars, crank and rear wheel. In addi ⁇ tion, the handlebars and crank cannot be used since they are locked.
  • the present locking system is built in and fitted to the bicycle frame directly during manufacture of the bicyc ⁇ le but can also be fitted to existing bicycles.
  • a hole is provided diametrically through the extension of the inclined tube inside the crankcase, through which the locking unit can be fitted in the inclined tube.
  • the locking unit When the locking unit has been fitted through the hole in the crankcase, it is then fitted to the rear wheel. First, the fibre bush nearest the rear wheel assembly is put in place. Next, the bush is fitted in the crank ⁇ case. When the brake lever has been fitted, it is held in place by a corter provided in a hole in the rear tube. Thereafter, the spring-loaded steel wire is led through the first bush and then through the bush with the cotter, thus permanently locking the rear wheel. The crank can then be fitted.
  • the 1mm thick flexible steel cylinder has been positioned externally after - the assembly hole, the locking-bolt hole in the in ⁇ clined tube and the assembly hole in the rear tube - a thin, displaceable locking device with the following function:
  • the locking device has a "pressed-out” spur by the hole in the rear tube. In the correct position, this holds the spring-loaded steel wire in place in the rear tube.
  • the locking device is guided and turned by a bottom plug lock which, in a single function, hermetically seals the assembly hole and, when the bicycle is unlocked, enables the locking device to be turned and released from the locking bolt and also enables the spring-loaded wire in the rear tube to be released from the cotter in such a way that, if desired, the cotter can be taken out and the rear wheel can be removed.
  • the rear wheel is locked again simply by inserting the cotter and turning the bottom plug to the correct position. The wire then en ⁇ gages with the cotter and holds the brake lever in place.
  • crank lock In the crank, the crank lock is fitted in such a way that it locks the pedals in a vertical position. This eliminates considerably the possibility of damage, as a downward pressure will not particularly effect the lock ⁇ ing function and a horizontal pressure will only effect the brake function without causing damage.
  • the handlebars are locked at an angle of 30 degrees to the right, or to the left in countries with lefthand traffic. Locking is achieved by turning the handlebars to an angle of 30 degrees and at the same time turning the key in the lock until the locking bolt engages with the steering-/wheelfork. Only then can the key be remov ⁇ ed and one can be sure that the bicycle is locked.
  • the lock is a key system lock with at least 1100 possi ⁇ ble variations. It is so small that it is completely concealed in the locking unit and is thus difficult to damage.
  • APPENDIX 1 - fig. 1 shows a side view of the locking unit from the steering fork to be crankcase fig.
  • 2 shows a.plan view from the steering fork to the crankcase.
  • APPENDIX 2 - fig. 3 shows a plan view of the functional parts of the locking unit
  • APPENDIX 3 : ⁇ g. shows a side view of the functional parts of the handlebars, locking unit and crank.
  • APPENDIX 4 - fig. 5 shows the functional parts of the locking unit with cross-sections indicated, and also drawings of these cross-sections,
  • APPENDIX 5 - fig. 6 shows the crankcase with bottom plug, rear-tube lock and locking arrangement from the inclined tube
  • APPENDIX 6 - fig . 7 shows a side view of the brake lever.
  • fig 8 shows a side view of the rear wheel at rear-wheel suspension with brake lever, cotter, steel wire and cott ⁇ er in place.
  • fig. 9 shows a plan view of the rear tube section with brake lever, cotter, bush and wire in the locked posi ⁇ tion.
  • fig. 10 shows a cross-section of the rear tube section with brake lever, cotter and bush.
  • APPENDIX 7 - fig. 11 shows firstly the locking arrange ⁇ ment for the rear tube and the in ⁇ clined tube locking arrangement for the crank. Also shown is a plan view of the steel cylinder for the crankcase with the displaceable locking device, bottom plug ar ⁇ rangement, hole for the locking rod in the inclined tube and hole for the spring-loaded rear-tube wire, fi ⁇ . 12 shows a cross-section of the steel cylinder with the locking arrange ⁇ ment and the "pressed out" releas ⁇ ing spur for the spring-loaded rear tube wire.
  • APPENDIX 8 - fig. 13 shows the bottom plug locking ar- rangment seen from the inside
  • fig. 14 shows a cross-section of the bottom plug locking arrangement.
  • Appendix 1, fig. 1 shows a side view of the locking unit (2) .
  • the unit is manufactured in two symmetrical parts and can be pushed together fairly easily with the func ⁇ tional parts inside.
  • the locking bolt is shown ready for engagement with the handlebars.
  • (1) is shown in the middle of the unit.
  • the locking-bolt holder (8) for the crank is shown on the extreme right with locking rod (10) and adjusting nut (14) whose func ⁇ tion is to finely adjust the length of the locking bolt at the side of the crankcase.
  • This locking bolt (11) is rectangular and has the dimensions 9x14 mm.
  • Figure 2 shows the unit from above with the lock (1) , locking rod (10) , adjusting nut (14) , locking bolt (11) , locking- bolt stabilizer (8) , steel cylinder (6) and crank (12) .
  • fig. 4 shows the unit from the crank (12) to the handlebars with locking of the handlebars in a posi ⁇ tion of 30 degrees and also the permanent attachment ofthe handlebars.
  • a metal strip (18) is mounted on the steering stem (15) and secured by a small screw (16) .
  • An elongated hole (20) is provided through which the lock ⁇ ing bolt can pass freely so that it is always possible to adjust the hanlebars but it is impossible to remove them.
  • the handlebars (15) are tightened by tightening the nut (17) which changes the position of the block (19) . This then secures the handlebars (15) .
  • the crank (12) is seen in cross-section with the two catches (21) which are intended to block the locking bolt (11) .
  • the drilled hole (22) is intended to release and "knock" the locking bolt in case of malfunction.
  • Section A-A shows the casing (2) of the locking unit with the symmetrical halves (2) and the locking bolt (9)
  • Section 0-0 show the system lock (1) with part of the symmetrical parts (2) and part of the ad ⁇ justing nut (3)
  • Section B-B shows the symmetrical halves (2) with the locking bolt (9) in the middle
  • Section C-C shows the symmetrical halves (2) and the locking bolt (9)
  • Section D-D shows how the adjusting nut (3) is posi ⁇ tioned and also the front end of the lock ⁇ ing bolt (9)
  • Section E-E shows the position of the locking cylind ⁇ er (1) with the symmetrical parts (2) , the adjusting nut (3) and the end of the lock ⁇ ing bolt (9)
  • Section N-N shows the locking-bolt holder (8) , the locking bolt (11) and the adjustable lock ⁇ ing rod (10)
  • Section F-F shows the middle section at the locking cylinder, the symmetrical halves (2) and the adjusting nuts (3)
  • Section G-G shows the symmetrical halves (2) with the adjusting nuts (3) .
  • Section H-H shows the symmetrical halves (2) , the ad ⁇ justing nuts (3) , the locking rod (10) and the position of the safety spring (5) in the unit Section I-I the symmetrical halves (2) containing the safety spring (5) and the locking rod (10)
  • Section K-K shows the symmetrical halves (2) , the position of the safety spring (5) and the locking rod (10)
  • Section L-L shows the symmetrical halves (2) and the lock washer (13) mounted on the locking rod (10)
  • Section M-M shows the end of the casing (2) , the sym ⁇ metrical halves (2) and the locking rod (10) Appendix 5, fig.
  • FIG. 6 shows the crankcase with the botton plug (31) , the spring-loaded lock for the rear tube (28) and the lock unit from the inclined tube.
  • the bottom plug (31) is operated by the handle (32) which, in the locked state, holds the bolts (30) in the extended posi ⁇ tion at the same time as the locking device (23) is in a position where it holds the spring (24) to the rear tube (28) in place.
  • the bolts (30) are re ⁇ leased and the pins (29) move the locking device (23) , (the bicycle in unlocked) free from the spring-loaded bolt (24) , which then frees the lock on the rear wheel.
  • the bush (26) can be seen in which the spring-loaded bolt (24) along with the spring (25) guid ⁇ es the steel wire to the rear tube (28) .
  • the adjusting nut (14) In the inclined tube the adjusting nut (14) , locking rod (10) , locking bolt (11) and locking-bolt holder (8) can be seen.
  • the cylinder (6) can also be seen.
  • Appendix 6, fig. 7 shows the brake lever (35).
  • the lever is bent (33) in order to follow the profile of the rear tube.
  • the hole (34) for insertion of the cotter is round, thus enabling adjustment of the rear wheel.
  • the milled slot (36) is used for adjustment.
  • Fig. 8 shows the rear-wheel enclosure where (38) is the wheel-fork, (39) is the hub enclosed by the brake lever (35) which is held in place in the hole (34) by the cot ⁇ ter (40) in the bush (37) , permanently secured by the steel wire (27) in the rear tube (28) .
  • the square cross- section (41) benefits the cotter (40) in that a corre ⁇ sponding milled surface has been made on the cotter to hold it in position with the hole in the direction of the wire.
  • Fig. 9 shows a plan view of the rear-tube (28) , wire (27) , bush (37) , brake lever (35) and cotter (40) .
  • Fig. 10 shows a cross-section of the bush (37) with the cotter (40) inserted and with the brake lever (35) lock ⁇ ed. Also shown is the cotter (40) with square milled surface and wirehole.
  • Appendix 7, fig. 11 shows a plan view of the steel cylin ⁇ der (6) .
  • the two rear-tubes (28) are shown, in one of which the lock is fitted.
  • the bush (26) holds the spring (25) and the locking bolt (24) in place in the rear-tube.
  • the inclined tube with locking-bolt holder (8) , locking bolt (11) , adjustment nut (14) and locking rod (10) are shown in the correct position.
  • the bottom plug (31) is shown with the locking bolts (30) locked and the locking device (23) is in locked po ⁇ sition, while the hole (44) is engaged by the locking bolt (11) from the inclined tube and the hole (45) has locked the locking bolt (24) i.e. when the bicycle is unlocked and the locking bolt (11) is withdrawn from the hole (44) , the handle (32) on the bottom plug (31) can be activated and turned to release the rear wheel enclo ⁇ sure.
  • Fig. 12 shows the steel cylinder (6) in cross-section with the locking device (42) and the pressed-out spur (46) for opening the locking bolt (24) .
  • Appendix 8, fig. 13 shows the bottom plug (31) seen from below.
  • the two locking bolts (30) are turned/displaced when the handle (32) is turned.
  • the pins (29) are displaced in such a way that they cause the locking device (23) to lock the rear tube and to engage with the locking bolt (11) in the inclined tube.
  • Fig. 14 shows the bottom plug (31) in cross-section, with the handle (32) , locking bolts (30) and the pins (29) for the locking device in the unlocked position.

Abstract

Bicycle lock built in to the bicycle frame to lock the central working parts of the bicycle bars (15) and crank (12). The key in the system lock (1) can only be removed when the bar (15) is in a position of 30° to the right. At the same time the crank (12) is blocked up but with constant maintenance of the brake function. The bars (15) cannot be separated in locked position but adjusting is possible. The locked position of the backwheel from the crank (12) by backtube (28) can be obtained by maintaining the brake lever (35) with pin (40) in the backtube perforation (28). Adjusting is possible in locked position. Releasing of the backwheel lock is possible by putting the key in the lock (1), releasing pawls (9, 10) from bars (15) and crank (12) where upon the locking devices (23) by turning of handles (32) in the plug (31) desrelease the pawl (24), the pin (40) can be removed and brake lever (35) disassembled. The brake lever can be released.

Description

BICYCLES LOCK
The invention concerns an integrated, in-built locking system for bicycles. The system is distinguished by the fact that it locks, and holds while locked, several es¬ sential and central parts of the bicycle.
Known lock systems, EP-OS no. 156 416 and US-PS no. 2 055 149 lock both the handlebars and the crank with one single locking function. The new invention performs not only the equivalent dual locking but also holds fast the rear wheel of the bicycle. This is achieved by inserting a simple but effective locking system in one of the bi¬ cycle's rear tubes. Along with the known locking system in the inclined tube and a flexible steel cylinder mounted in the crankcase, this makes it impossible to remove the handlebars, crank and rear wheel. In addi¬ tion, the handlebars and crank cannot be used since they are locked.
The present locking system is built in and fitted to the bicycle frame directly during manufacture of the bicyc¬ le but can also be fitted to existing bicycles. A hole is provided diametrically through the extension of the inclined tube inside the crankcase, through which the locking unit can be fitted in the inclined tube. The locking system locks the crank and at the same time braking is still possible since the locking rod for the crank lock is spring-loaded. As a result, when the bi¬ cycle is locked the locking rod strikes and "slides" on the crank lock but blocks the crank when the pedals are turned in a forward direction.
When the locking unit has been fitted through the hole in the crankcase, it is then fitted to the rear wheel. First, the fibre bush nearest the rear wheel assembly is put in place. Next, the bush is fitted in the crank¬ case. When the brake lever has been fitted, it is held in place by a corter provided in a hole in the rear tube. Thereafter, the spring-loaded steel wire is led through the first bush and then through the bush with the cotter, thus permanently locking the rear wheel. The crank can then be fitted. The 1mm thick flexible steel cylinder has been positioned externally after - the assembly hole, the locking-bolt hole in the in¬ clined tube and the assembly hole in the rear tube - a thin, displaceable locking device with the following function:
When the bicycle is locked - the locking bolt on the crank - the locking bolt goes through a hole in the locking device and holds the device in place.
The locking device has a "pressed-out" spur by the hole in the rear tube. In the correct position, this holds the spring-loaded steel wire in place in the rear tube.
The locking device is guided and turned by a bottom plug lock which, in a single function, hermetically seals the assembly hole and, when the bicycle is unlocked, enables the locking device to be turned and released from the locking bolt and also enables the spring-loaded wire in the rear tube to be released from the cotter in such a way that, if desired, the cotter can be taken out and the rear wheel can be removed. The rear wheel is locked again simply by inserting the cotter and turning the bottom plug to the correct position. The wire then en¬ gages with the cotter and holds the brake lever in place.
It is only possible to turn the bottom plug when the bi¬ cycle is unlocked because the locking bolt in the hole in the locking device makes it impossible to displace the locking device.
In the crank, the crank lock is fitted in such a way that it locks the pedals in a vertical position. This eliminates considerably the possibility of damage, as a downward pressure will not particularly effect the lock¬ ing function and a horizontal pressure will only effect the brake function without causing damage.
The handlebars are locked at an angle of 30 degrees to the right, or to the left in countries with lefthand traffic. Locking is achieved by turning the handlebars to an angle of 30 degrees and at the same time turning the key in the lock until the locking bolt engages with the steering-/wheelfork. Only then can the key be remov¬ ed and one can be sure that the bicycle is locked.
Simultaneously with this locking, a permanent locking of the handlebars in the steering tube takes place so that the handlebars and their fittings cannot be remov¬ ed.
The lock is a key system lock with at least 1100 possi¬ ble variations. It is so small that it is completely concealed in the locking unit and is thus difficult to damage.
The invention is described in greater detail with refer¬ ence to the drawings.
APPENDIX 1 - fig. 1 shows a side view of the locking unit from the steering fork to be crankcase fig. 2 shows a.plan view from the steering fork to the crankcase. APPENDIX 2 - fig. 3 shows a plan view of the functional parts of the locking unit, APPENDIX 3 :ιg. shows a side view of the functional parts of the handlebars, locking unit and crank.
APPENDIX 4 - fig. 5 shows the functional parts of the locking unit with cross-sections indicated, and also drawings of these cross-sections,
APPENDIX 5 - fig. 6 shows the crankcase with bottom plug, rear-tube lock and locking arrangement from the inclined tube,
APPENDIX 6 - fig . 7 shows a side view of the brake lever. fig 8 shows a side view of the rear wheel at rear-wheel suspension with brake lever, cotter, steel wire and cott¬ er in place. fig. 9 shows a plan view of the rear tube section with brake lever, cotter, bush and wire in the locked posi¬ tion. fig. 10 shows a cross-section of the rear tube section with brake lever, cotter and bush.
APPENDIX 7 - fig. 11 shows firstly the locking arrange¬ ment for the rear tube and the in¬ clined tube locking arrangement for the crank. Also shown is a plan view of the steel cylinder for the crankcase with the displaceable locking device, bottom plug ar¬ rangement, hole for the locking rod in the inclined tube and hole for the spring-loaded rear-tube wire, fiα. 12 shows a cross-section of the steel cylinder with the locking arrange¬ ment and the "pressed out" releas¬ ing spur for the spring-loaded rear tube wire. APPENDIX 8 - fig. 13 shows the bottom plug locking ar- rangment seen from the inside, fig. 14 shows a cross-section of the bottom plug locking arrangement.
Appendix 1, fig. 1 shows a side view of the locking unit (2) . The unit is manufactured in two symmetrical parts and can be pushed together fairly easily with the func¬ tional parts inside. At the tip (9) the locking bolt is shown ready for engagement with the handlebars. The lock
(1) is shown in the middle of the unit. The locking-bolt holder (8) for the crank is shown on the extreme right with locking rod (10) and adjusting nut (14) whose func¬ tion is to finely adjust the length of the locking bolt at the side of the crankcase. This locking bolt (11) is rectangular and has the dimensions 9x14 mm. Figure 2 shows the unit from above with the lock (1) , locking rod (10) , adjusting nut (14) , locking bolt (11) , locking- bolt stabilizer (8) , steel cylinder (6) and crank (12) .
Appendix 2, fig. 3 shows one half of the locking unit
(2) in which the functional parts are placed. On the left a cross-section of the hole in the steering tube (7) , can be seen into which the locking bolt (9) is guided when the lock (1) is turned as a result of the locking-bolt holder (3) moving over the lock body (1) . The adjusting nut (14) finely adjusts the length of the locking bolt (9) . The locking-bolt holder (3) which also guides the locking-rod (10) towards the crank (12) is held in the unlocked position by the spring (5) inside the inclined tube. When the key (1) is turned, the spring (4) is tightened, and held fast by the lock wash- er (13) and the locking rod (10) pushes the locking bolt (11) into engagement in the crank (12) . The adjusting nut (14) , locking rod (10) , locking bolt (11) , locking bolt stabilizer (8) and steel cylinder (6) are seen be¬ side the crank (12) .
Appendix 3. fig. 4 shows the unit from the crank (12) to the handlebars with locking of the handlebars in a posi¬ tion of 30 degrees and also the permanent attachment ofthe handlebars. A metal strip (18) is mounted on the steering stem (15) and secured by a small screw (16) . An elongated hole (20) is provided through which the lock¬ ing bolt can pass freely so that it is always possible to adjust the hanlebars but it is impossible to remove them. The handlebars (15) are tightened by tightening the nut (17) which changes the position of the block (19) . This then secures the handlebars (15) . The crank (12) is seen in cross-section with the two catches (21) which are intended to block the locking bolt (11) . The drilled hole (22) is intended to release and "knock" the locking bolt in case of malfunction.
Appendix 4, fig. 5 is described in appendix 3, fig. 4
Section A-A shows the casing (2) of the locking unit with the symmetrical halves (2) and the locking bolt (9)
Section 0-0 show the system lock (1) with part of the symmetrical parts (2) and part of the ad¬ justing nut (3)
Section B-B shows the symmetrical halves (2) with the locking bolt (9) in the middle
Section C-C shows the symmetrical halves (2) and the locking bolt (9)
Section D-D shows how the adjusting nut (3) is posi¬ tioned and also the front end of the lock¬ ing bolt (9) Section E-E shows the position of the locking cylind¬ er (1) with the symmetrical parts (2) , the adjusting nut (3) and the end of the lock¬ ing bolt (9) Section N-N shows the locking-bolt holder (8) , the locking bolt (11) and the adjustable lock¬ ing rod (10) Section F-F shows the middle section at the locking cylinder, the symmetrical halves (2) and the adjusting nuts (3) Section G-G shows the symmetrical halves (2) with the adjusting nuts (3) . Section H-H shows the symmetrical halves (2) , the ad¬ justing nuts (3) , the locking rod (10) and the position of the safety spring (5) in the unit Section I-I the symmetrical halves (2) containing the safety spring (5) and the locking rod (10) Section K-K shows the symmetrical halves (2) , the position of the safety spring (5) and the locking rod (10) Section L-L shows the symmetrical halves (2) and the lock washer (13) mounted on the locking rod (10) Section M-M shows the end of the casing (2) , the sym¬ metrical halves (2) and the locking rod (10) Appendix 5, fig. 6 shows the crankcase with the botton plug (31) , the spring-loaded lock for the rear tube (28) and the lock unit from the inclined tube. The bottom plug (31) is operated by the handle (32) which, in the locked state, holds the bolts (30) in the extended posi¬ tion at the same time as the locking device (23) is in a position where it holds the spring (24) to the rear tube (28) in place. On turning, the bolts (30) are re¬ leased and the pins (29) move the locking device (23) , (the bicycle in unlocked) free from the spring-loaded bolt (24) , which then frees the lock on the rear wheel. In the rear tube the bush (26) can be seen in which the spring-loaded bolt (24) along with the spring (25) guid¬ es the steel wire to the rear tube (28) . In the inclined tube the adjusting nut (14) , locking rod (10) , locking bolt (11) and locking-bolt holder (8) can be seen. The cylinder (6) can also be seen.
Appendix 6, fig. 7 shows the brake lever (35). The lever is bent (33) in order to follow the profile of the rear tube. The hole (34) for insertion of the cotter is round, thus enabling adjustment of the rear wheel. The milled slot (36) is used for adjustment.
Fig. 8 shows the rear-wheel enclosure where (38) is the wheel-fork, (39) is the hub enclosed by the brake lever (35) which is held in place in the hole (34) by the cot¬ ter (40) in the bush (37) , permanently secured by the steel wire (27) in the rear tube (28) . The square cross- section (41) benefits the cotter (40) in that a corre¬ sponding milled surface has been made on the cotter to hold it in position with the hole in the direction of the wire.
Fig. 9 shows a plan view of the rear-tube (28) , wire (27) , bush (37) , brake lever (35) and cotter (40) .
Fig. 10 shows a cross-section of the bush (37) with the cotter (40) inserted and with the brake lever (35) lock¬ ed. Also shown is the cotter (40) with square milled surface and wirehole.
Appendix 7, fig. 11 shows a plan view of the steel cylin¬ der (6) . The two rear-tubes (28) are shown, in one of which the lock is fitted. Here is (27) the steel wire for the rear wheel. The bush (26) holds the spring (25) and the locking bolt (24) in place in the rear-tube. The inclined tube with locking-bolt holder (8) , locking bolt (11) , adjustment nut (14) and locking rod (10) are shown in the correct position.
The bottom plug (31) is shown with the locking bolts (30) locked and the locking device (23) is in locked po¬ sition, while the hole (44) is engaged by the locking bolt (11) from the inclined tube and the hole (45) has locked the locking bolt (24) i.e. when the bicycle is unlocked and the locking bolt (11) is withdrawn from the hole (44) , the handle (32) on the bottom plug (31) can be activated and turned to release the rear wheel enclo¬ sure.
Fig. 12 shows the steel cylinder (6) in cross-section with the locking device (42) and the pressed-out spur (46) for opening the locking bolt (24) .
Appendix 8, fig. 13 shows the bottom plug (31) seen from below. The two locking bolts (30) are turned/displaced when the handle (32) is turned. When the handle (32) is turned, the pins (29) are displaced in such a way that they cause the locking device (23) to lock the rear tube and to engage with the locking bolt (11) in the inclined tube.
Fig. 14 shows the bottom plug (31) in cross-section, with the handle (32) , locking bolts (30) and the pins (29) for the locking device in the unlocked position.

Claims

Claims
Locking systems for bicycles, which lock the bicycles, have earlier been described by other inventors. The systems lock, in different ways, both the handlebars and the crank in one single locking manoeuvre. However, these systems do not lock in a sufficiently safe and in¬ violable way that lives up to the present demand on bi¬ cycle locks.
The present locking system is CHARACTERIZED in that it is totally built-in to the cycle frame, that it locks the crank (12) , CHARACTERIZED in that it maintains the brake function, that it locks the handlebars (15) at an angle of 30 degress to the left, or to the right in countries with left-hand traffic, and CHARACTERIZED in that the handlebars (15) remain inseparable in the lock¬ ed function.
In addition, it locks the rear wheel CHARACTERIZED in that the rear wheel is permanently secured but is ad¬ justable if necessary.
The central part of the system, which enables the per¬ formance of all these functions, comes from the steel cylinder (6) mounted in the crank (12) , CHARACTERIZED in that it makes the crankcase a closed system when the locking bolt (11) from the inclined tube is disconnected and positioned on the crank (12) .
PCT/DK1992/000225 1991-07-11 1992-07-15 Bicycles lock WO1993001964A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK133991A DK169373B1 (en) 1991-07-11 1991-07-11 Bicycle lock for locking handlebars, cranks and rear wheels
DK1339/91 1991-07-24

Publications (1)

Publication Number Publication Date
WO1993001964A1 true WO1993001964A1 (en) 1993-02-04

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK1992/000225 WO1993001964A1 (en) 1991-07-11 1992-07-15 Bicycles lock

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AU (1) AU2375692A (en)
DK (1) DK169373B1 (en)
WO (1) WO1993001964A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19741643A1 (en) * 1997-09-22 1999-03-25 Klaus Dr Keck Bicycle or motorcycle locking device
US6152847A (en) * 1996-12-20 2000-11-28 Shimano, Inc. Bicycle antitheft control device, shifting device and shifting system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US814034A (en) * 1904-11-30 1906-03-06 George Hamilton Fry Bicycle-lock.
US2055149A (en) * 1935-07-09 1936-09-22 Hershbain Israel Bicycle lock
EP0156416A1 (en) * 1984-03-05 1985-10-02 Johannes Carel Van Wierst Locking device for a bicycle
DE3541169A1 (en) * 1985-11-21 1986-07-31 Leopold 7515 Linkenheim Riepl Security lock installed in the frame for securing two-wheeled vehicles, mainly bicycles, against theft

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US814034A (en) * 1904-11-30 1906-03-06 George Hamilton Fry Bicycle-lock.
US2055149A (en) * 1935-07-09 1936-09-22 Hershbain Israel Bicycle lock
EP0156416A1 (en) * 1984-03-05 1985-10-02 Johannes Carel Van Wierst Locking device for a bicycle
DE3541169A1 (en) * 1985-11-21 1986-07-31 Leopold 7515 Linkenheim Riepl Security lock installed in the frame for securing two-wheeled vehicles, mainly bicycles, against theft

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6152847A (en) * 1996-12-20 2000-11-28 Shimano, Inc. Bicycle antitheft control device, shifting device and shifting system
US6164677A (en) * 1996-12-20 2000-12-26 Shimano, Inc. Bicycle antitheft control device, shifting device and shifting system
US6206799B1 (en) 1996-12-20 2001-03-27 Shimano, Inc. Bicycle antitheft control device, shifting device and shifting system
US6213910B1 (en) 1996-12-20 2001-04-10 Shimano, Inc. Bicycle antitheft control device, shifting device and shifting system
EP1424272A2 (en) * 1996-12-20 2004-06-02 Shimano Inc. Bicycle antitheft control device, shifting device and shifting system
EP1424272A3 (en) * 1996-12-20 2005-08-10 Shimano Inc. Bicycle antitheft control device, shifting device and shifting system
DE19741643A1 (en) * 1997-09-22 1999-03-25 Klaus Dr Keck Bicycle or motorcycle locking device

Also Published As

Publication number Publication date
DK133991A (en) 1993-01-25
AU2375692A (en) 1993-02-23
DK169373B1 (en) 1994-10-17
DK133991D0 (en) 1991-07-11

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