CA2150380A1 - Quick-clamping hub for bicycles - Google Patents
Quick-clamping hub for bicyclesInfo
- Publication number
- CA2150380A1 CA2150380A1 CA 2150380 CA2150380A CA2150380A1 CA 2150380 A1 CA2150380 A1 CA 2150380A1 CA 2150380 CA2150380 CA 2150380 CA 2150380 A CA2150380 A CA 2150380A CA 2150380 A1 CA2150380 A1 CA 2150380A1
- Authority
- CA
- Canada
- Prior art keywords
- clamping
- quick
- turn knob
- lock
- hub
- 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.)
- Abandoned
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K25/00—Axle suspensions
- B62K25/02—Axle suspensions for mounting axles rigidly on cycle frame or fork, e.g. adjustably
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Steering Devices For Bicycles And Motorcycles (AREA)
- Axle Suspensions And Sidecars For Cycles (AREA)
- Lock And Its Accessories (AREA)
Abstract
The quick-clamping hub for bicycles proposed has a clamping element (7) which can be adjusted in a direction along the hub axis and can be secured against theft by a lock (14). For this purpose, the hub has a spindle (2) with threaded ends (3) on one of which a cylindrical nut (8) is screwed. Mounted on this nut (8) is a knob-like body (9) which can be turned by hand and which is mounted so that, in the theft-proof position, it rotates freely on the nut (8) but can, for the clamping position, be locked to the nut (8) by actuating the lock (14) so that, when the knob-like body (9) rotates, the nut (8) rotates with it.
Description
-~- . P~ IN THi lq~RANSL, . ~3,~1 QUICK-CLAMPING HUB FOR BICYCLES
The invention relates to a quick-clamping hub for bicycles with a clamping device adjustable in the direction of the hub axis and secured against theft by a lock.
Quick-clamping hubs for bicycles are known. They have the purpose, for example, with racing bicycles or mountain bikes, to provide for a quick removal and reinsertion of the wheels.
The known quick-clamping hubs are provided with a special closure. This closure is comprised of an axially displaceable rod that extends axially through the hub body and is provided at one end with a fixedly arranged head. The clamping mechanism proper is arranged at the other end of the rod and, in a known embodiment, is provided with an eccentric bolt that is supported so as to be pivotable by a lever, wherein upon a pivoting movement the corresponding clamping device is axially displaced. In order to prevent unauthorized opening of the closure and thus unauthorized removal of the wheel, it is known to embody the quick-clamping hub in conjunction with a lock in order to provide theft protection. For example, it is known to provide the lever for pivoting the eccentric bolt such that, when not in use, it can be removed whereby furthermore the opening at the eccentric bolt for receiving the lever can be locked or released with a lock as desired. This quick-clamping hub thus requires the use of a separate lever for actuating the eccentric bolt. However, such a lever can be lost.
`` ` 21~03~0 It is therefore an object of the invention to further develop a quick-clamping hub with theft protection for bicycles.
As a technical solution it is suggested with the invention that a threaded spindle is provided extending along the axis of the hub, that onto the threaded end of the threaded spindle a cylindrical clamping bolt is screwed, and that on the clamping bolt a turn knob is arranged which is manually actuatable, in the anti-theft position is freely rotatable on the clamping bolt, and for the clamping action is engagable with the clamping bolt by actuating the lock such that upon rotation of the turn knob the clamping bolt also rotates.
A quick-clamping hub for bicycles according to this technical teaching with an anti-theft protection has the advantage that not only theft by chance is prevented but also effectively a planned theft. The basic idea of the invention is that the clamping mechanism provides on a threaded spindle a clamping bolt whereby this clamping bolt can only be rotated, i.e., actuated, when the ring-shaped turn knob arranged on the cylindrical clamping bolt is brought into a fixed connection with the clamping bolt. This can be achieved by providing a respective positive locking with the lock between the turn knob and the clamping bolt so that the rotational movement of the turn knob is transmitted to the clamping bolt. In the anti-theft position the clamping bolt thus cannot be turned by the turn knob. Since furthermore the sleeve-like turn knob is supported on the cylindrical clamping bolt so as to be freely rotatable, it is impossible in the anti-theft position to apply, for example, pliers to the turn knob for removing the clamping device by force.
The turn knob should have such a diameter that the wheel can be connected securely to the fork of the bicycle without requiring great force expenditure.
The turn knob can be substantially cylindrical.
Of course, it is also possible to provide the turn knob with radial projections in order to achieve an improved torque by lever extension.
A further embodiment of the inventive quick-clamping hub suggests that the lock is arranged at or within the turn knob. This provides a technically simple possibility for housing the lock whereby the turn knob provides sufficient space to receive the lock. By actuating the lock within the turn knob, the lock thus engages the cylindrical clamping bolt for the clamping action of the quick-clamping hub and thus provides positive locking between these two parts.
According to another embodiment it is suggested that the turn knob completely encloses the clamping bolt. This complete enclosure of the clamping bolt by the turn knob is to be understood such that the clamping bolt does not have any areas projecting past the turn knob which would provide a point of action for applying pliers etc.
Of course, the external end face of the clamping bolt can be visible from the exterior as long as it is flush with the end face of the turn knob or is recessed within the turn knob so that in any case the aforementioned application of pliers is prevented.
Another preferred embodiment of the inventive quick-clamping hub suggests that the clamping bolt has a coaxial disk which closes off the end face of the turn knob facing the fork of the bicycle and which at its inner side is provided with such a profiling that the lock arranged within the turn knob can be brought into positive locking with the profiling. This is a simple possibility for technically realizing the inventive principle according to which the disk, fixedly connected to the clamping bolt, can be brought into engagement with the turn knob when the lock is accordingly actuated and engages the profiling of the disk.
The disk not only serves for receiving the profiling for positive locking between the turn knob and the disk, respectively, the clamping bolt, but also simultaneously serves as a closure plate for the sleeve-like turn knob. Since the profiling together with the disk forms a unitary part, the system, on the one hand, provides great stability, and, on the other hand, the system can be manufactured in a constructively simple manner.
According to another embodiment it is suggested that the profiling is in the form of a toothed ring fixedly connected to the inner side of the disk whereby a cam of the lock can be brought into engagement between the teeth. The use of a toothed disk with a toothed ring is a technically simple possibility to provide positive locking between the lock of the turn knob and the disk and thus with the clamping bolt. The teeth of the toothed ring provide, on the one hand, a great contact surface, and, on the other hand, the teeth are distributed over the entire circumference of the toothed ring so that a plurality of angular positions provide for positive locking between the turn knob and the disk.
In yet another embodiment it is suggested that the cam has a semi-circular shape rotatable about its axis. The rotational axis of this semi-circular shape is thus located on or slightly external to the diameter of the circumference of the toothed ring whereby in the anti-theft position the semi-circular cam is radially outwardly positioned while in the clamping position it is inwardly turned so as to be positioned in the area between two teeth of the toothed ring so that positive locking is provided. Such a lock with a rotatable semi-circular cam can be technically simply realized by adapting conventional lock cylinders.
In yet another embodiment it is suggested that the clamping bolt is a nut having a longitudinal cross-section that is T-shaped and is inserted into one side of the turn knob whereby from the other side of the turn knob the disk is axially inserted so as to provide for a positive locking.
This provides for a technically simple design of the quick-clamping mechanism allowing for a simple mounting. The head of the T-profile nut is preferably flush with the exterior end face of the turn knob. The T-profile nut has the further advantage that with its head a U-profile for receiving the freely rotatable turn knob is formed. Furthermore, it provides, by being clamped to the fork, in cooperation with the disk a securing of the lock body on the side of the fork with respect to applying a crowbar for forced removal of the lock body from this side.
In yet another embodiment of the inventive quick-clamping hub it is suggested that in the area between the clamping device and the fork of the bicycle a freely rotatable sleeve is arranged.
Since due to the constructive design of the fork shaft it is often not possible that the turn knob extends entirely to the fork, a corresponding distance must be bridged. However, by arranging a freely rotatable sleeve, it is impossible to apply pliers here in order to remove by force the quick-clamping mechanism.
Furthermore, it is suggested that the quick-clamping hub at the other end of the threaded spindle is provided with a fixedly arranged clamping nut on which is supported a freely rotatable ring. This freely rotatable ring also prevents that pliers can be applied with the purpose of removing by force the clamping nut. Of course, the ring completely surrounds the clamping nut so that, as explained above, no projections are present which could be turned.
21~0380 According to another embodiment of the invention it is suggested to provide a separate actuating rod insertable into the turn knob transverse to the threaded spindle. This actuating rod has the advantage that with it the leverage of the turn knob can be extended to thereby facilitate the turning of the turn knob.
One embodiment of the inventive quick-clamping hub for bicycles will be explained in the following with the aid of the drawings. It is shown in:
ig. 1 a schematic cross-section of the quick-clamping hub;
ig. 2 at an enlarged scale an end view of the disk with the toothed ring viewed from the turn knob (in Fig. 1 viewed from the left);
ig. 3 also at an enlarged scale an end view of the turn knob viewed from the disk with toothed ring (in Fig. 1 from the right).
The quick-clamping hub, as represented as a complete unit in Fig. 1 relative to its arrangement within the fork 1 of a bicycle, has first a threaded spindle 2 which at both ends is provided with a thread 3. The hub body to which the spokes of the wheel are connected in a conventional manner, is not represented in order to simplify the drawing.
The invention relates to a quick-clamping hub for bicycles with a clamping device adjustable in the direction of the hub axis and secured against theft by a lock.
Quick-clamping hubs for bicycles are known. They have the purpose, for example, with racing bicycles or mountain bikes, to provide for a quick removal and reinsertion of the wheels.
The known quick-clamping hubs are provided with a special closure. This closure is comprised of an axially displaceable rod that extends axially through the hub body and is provided at one end with a fixedly arranged head. The clamping mechanism proper is arranged at the other end of the rod and, in a known embodiment, is provided with an eccentric bolt that is supported so as to be pivotable by a lever, wherein upon a pivoting movement the corresponding clamping device is axially displaced. In order to prevent unauthorized opening of the closure and thus unauthorized removal of the wheel, it is known to embody the quick-clamping hub in conjunction with a lock in order to provide theft protection. For example, it is known to provide the lever for pivoting the eccentric bolt such that, when not in use, it can be removed whereby furthermore the opening at the eccentric bolt for receiving the lever can be locked or released with a lock as desired. This quick-clamping hub thus requires the use of a separate lever for actuating the eccentric bolt. However, such a lever can be lost.
`` ` 21~03~0 It is therefore an object of the invention to further develop a quick-clamping hub with theft protection for bicycles.
As a technical solution it is suggested with the invention that a threaded spindle is provided extending along the axis of the hub, that onto the threaded end of the threaded spindle a cylindrical clamping bolt is screwed, and that on the clamping bolt a turn knob is arranged which is manually actuatable, in the anti-theft position is freely rotatable on the clamping bolt, and for the clamping action is engagable with the clamping bolt by actuating the lock such that upon rotation of the turn knob the clamping bolt also rotates.
A quick-clamping hub for bicycles according to this technical teaching with an anti-theft protection has the advantage that not only theft by chance is prevented but also effectively a planned theft. The basic idea of the invention is that the clamping mechanism provides on a threaded spindle a clamping bolt whereby this clamping bolt can only be rotated, i.e., actuated, when the ring-shaped turn knob arranged on the cylindrical clamping bolt is brought into a fixed connection with the clamping bolt. This can be achieved by providing a respective positive locking with the lock between the turn knob and the clamping bolt so that the rotational movement of the turn knob is transmitted to the clamping bolt. In the anti-theft position the clamping bolt thus cannot be turned by the turn knob. Since furthermore the sleeve-like turn knob is supported on the cylindrical clamping bolt so as to be freely rotatable, it is impossible in the anti-theft position to apply, for example, pliers to the turn knob for removing the clamping device by force.
The turn knob should have such a diameter that the wheel can be connected securely to the fork of the bicycle without requiring great force expenditure.
The turn knob can be substantially cylindrical.
Of course, it is also possible to provide the turn knob with radial projections in order to achieve an improved torque by lever extension.
A further embodiment of the inventive quick-clamping hub suggests that the lock is arranged at or within the turn knob. This provides a technically simple possibility for housing the lock whereby the turn knob provides sufficient space to receive the lock. By actuating the lock within the turn knob, the lock thus engages the cylindrical clamping bolt for the clamping action of the quick-clamping hub and thus provides positive locking between these two parts.
According to another embodiment it is suggested that the turn knob completely encloses the clamping bolt. This complete enclosure of the clamping bolt by the turn knob is to be understood such that the clamping bolt does not have any areas projecting past the turn knob which would provide a point of action for applying pliers etc.
Of course, the external end face of the clamping bolt can be visible from the exterior as long as it is flush with the end face of the turn knob or is recessed within the turn knob so that in any case the aforementioned application of pliers is prevented.
Another preferred embodiment of the inventive quick-clamping hub suggests that the clamping bolt has a coaxial disk which closes off the end face of the turn knob facing the fork of the bicycle and which at its inner side is provided with such a profiling that the lock arranged within the turn knob can be brought into positive locking with the profiling. This is a simple possibility for technically realizing the inventive principle according to which the disk, fixedly connected to the clamping bolt, can be brought into engagement with the turn knob when the lock is accordingly actuated and engages the profiling of the disk.
The disk not only serves for receiving the profiling for positive locking between the turn knob and the disk, respectively, the clamping bolt, but also simultaneously serves as a closure plate for the sleeve-like turn knob. Since the profiling together with the disk forms a unitary part, the system, on the one hand, provides great stability, and, on the other hand, the system can be manufactured in a constructively simple manner.
According to another embodiment it is suggested that the profiling is in the form of a toothed ring fixedly connected to the inner side of the disk whereby a cam of the lock can be brought into engagement between the teeth. The use of a toothed disk with a toothed ring is a technically simple possibility to provide positive locking between the lock of the turn knob and the disk and thus with the clamping bolt. The teeth of the toothed ring provide, on the one hand, a great contact surface, and, on the other hand, the teeth are distributed over the entire circumference of the toothed ring so that a plurality of angular positions provide for positive locking between the turn knob and the disk.
In yet another embodiment it is suggested that the cam has a semi-circular shape rotatable about its axis. The rotational axis of this semi-circular shape is thus located on or slightly external to the diameter of the circumference of the toothed ring whereby in the anti-theft position the semi-circular cam is radially outwardly positioned while in the clamping position it is inwardly turned so as to be positioned in the area between two teeth of the toothed ring so that positive locking is provided. Such a lock with a rotatable semi-circular cam can be technically simply realized by adapting conventional lock cylinders.
In yet another embodiment it is suggested that the clamping bolt is a nut having a longitudinal cross-section that is T-shaped and is inserted into one side of the turn knob whereby from the other side of the turn knob the disk is axially inserted so as to provide for a positive locking.
This provides for a technically simple design of the quick-clamping mechanism allowing for a simple mounting. The head of the T-profile nut is preferably flush with the exterior end face of the turn knob. The T-profile nut has the further advantage that with its head a U-profile for receiving the freely rotatable turn knob is formed. Furthermore, it provides, by being clamped to the fork, in cooperation with the disk a securing of the lock body on the side of the fork with respect to applying a crowbar for forced removal of the lock body from this side.
In yet another embodiment of the inventive quick-clamping hub it is suggested that in the area between the clamping device and the fork of the bicycle a freely rotatable sleeve is arranged.
Since due to the constructive design of the fork shaft it is often not possible that the turn knob extends entirely to the fork, a corresponding distance must be bridged. However, by arranging a freely rotatable sleeve, it is impossible to apply pliers here in order to remove by force the quick-clamping mechanism.
Furthermore, it is suggested that the quick-clamping hub at the other end of the threaded spindle is provided with a fixedly arranged clamping nut on which is supported a freely rotatable ring. This freely rotatable ring also prevents that pliers can be applied with the purpose of removing by force the clamping nut. Of course, the ring completely surrounds the clamping nut so that, as explained above, no projections are present which could be turned.
21~0380 According to another embodiment of the invention it is suggested to provide a separate actuating rod insertable into the turn knob transverse to the threaded spindle. This actuating rod has the advantage that with it the leverage of the turn knob can be extended to thereby facilitate the turning of the turn knob.
One embodiment of the inventive quick-clamping hub for bicycles will be explained in the following with the aid of the drawings. It is shown in:
ig. 1 a schematic cross-section of the quick-clamping hub;
ig. 2 at an enlarged scale an end view of the disk with the toothed ring viewed from the turn knob (in Fig. 1 viewed from the left);
ig. 3 also at an enlarged scale an end view of the turn knob viewed from the disk with toothed ring (in Fig. 1 from the right).
The quick-clamping hub, as represented as a complete unit in Fig. 1 relative to its arrangement within the fork 1 of a bicycle, has first a threaded spindle 2 which at both ends is provided with a thread 3. The hub body to which the spokes of the wheel are connected in a conventional manner, is not represented in order to simplify the drawing.
2 1 ~03~0 Onto the thread 3 at the right side of the threaded spindle 2 a clamping nut 4 in the form of a T-profile nut is fixedly screwed. Instead, it is also possible to connect the clamping nut 4, for example, by welding or gluing, to the threaded spindle 2. What is necessary is a fixed arrangement of the clamping nut 4 on the threaded spindle 2. However, screwing of the threaded nut 4 facilitates under certain circumstances the assembly. Adjacent to the clamping nut 4 a spacer 5 is arranged which is slipped onto the threaded spindle 2. This spacer 5 together with the T-profile of the clamping nut 4 forms a U-shaped profile in which a matching ring 6 is freely rotatable. Since furthermore the head of the clamping nut 4 is flush with the end face of the ring 6, no projecting areas are present at which, for example, pliers could be applied for removing the clamping nut 4. The pliers can only be applied to the ring 6. However, a forced removal is not possible because the ring 6 rotates.
The other side of the threaded spindle 2 comprises the clamping mechanism proper of the quick-clamping hub. The respective clamping device 7 comprises first a clamping bolt 8, also in the form of a T-profiled nut, which is threaded onto the corresponding thread 3 of the threaded spindle 2. The head of the clamping bolt 8 is positioned in a corresponding depression of the external end face of the cylindrical turn knob 9 arranged on the clamping bolt 8. Thus, here the clamping bolt 8 also does not provide a point of action for ~1~0380 applying pliers. On the other side of the turn knob 9, relative to the head of the clamping bolt 8, a disk 10 is provided. At this disk a toothed ring 11 is fixedly arranged at the planar end face facing the turn knob 9. On the other side the disk 10 is provided with a spacer 12 unitary with the disk. The disk 10 comprises a through hole corresponding to the diameter of the threaded spindle 2, while the corresponding disk of the toothed ring 11 has an opening with a substantially square cross-sectional profile.
This cross-sectional profile matches a corresponding projection 13 of the clamping bolt 8 so that upon insertion of the unit, comprised of the disk 10, the toothed ring 11, and the spacer 12, onto the projection 13 of the clamping bolt 8 a positive locking of the clamping bolt 8 is provided when rotated.
Within the turn knob 9 a lock 14 is arranged.
This lock comprises a rotational cam 15 with a semi-circular shape, as can be seen especially in Fig. 3. By actuating the lock 14, for example, with a key, the semi-circular shape of the cam 15 can be pivoted downwardly and engages two teeth 11' of the toothed ring 11.
Furthermore it is shown in Fig. 1 that between the spacer 12 of the disk 10 and the corresponding fork 11 a separate spacer 16 is slipped onto the threaded spindle 2. On these two spacers 12, 16 a sleeve 17 is freely rotatably supported. The described quick-clamping hub for bicycles with theft protection functions as follows.
Before insertion of the wheel into the fork 1 the lock 14 is actuated such that the cam 15 with its semi-circular transverse profile is downwardly pivoted and positioned between two adjacent teeth 11' of the toothed ring 11. Thus, a positive locking between the cam 15 of the lock 14 and the teeth 11' of the toothed ring 11 is provided. By rotating the turn knob 9 the clamping bolt 8 is thus also rotated and displaced along the threaded spindle 2. Thus, the hub can be fixedly clamped onto the fork 1, whereby the turn knob 9 can be rotated by hand. In order to facilitate rotating of the turn knob 9 it is alternatively possible to insert into a corresponding blind hole of the turn knob 9 an actuating rod 18, as shown in Fig. 3.
This actuating rod 18 extends substantially transverse to the threaded spindle 2 so that the leverage for rotating the turn knob 9 is increased by the actuating rod 18.
After clamping the wheel onto the fork 1, the lock 14 is actuated and the cam 15 pivoted upwardly, as shown in Fig. 3. In this position the cam 15 is out of engagement with the toothed ring 11. This means that due to the lack of positive locking the rotational movement of the turn knob 9 is thus not transmitted to the toothed ring 11 and also not onto the clamping bolt 8 so that a release of the quick-clamping hub is not possible. This provides the required theft protection.
When it is desired to remove the wheel from the fork, which requires switching the clamping device 7 into the release position, the lock 14 is actuated and the cam 15 is moved into the area between two teeth 11' of the toothed ring 11.
Thus, a positive locking between the turn knob 9 and the clamping bolt 8 results (via the toothed ring ll). By rotating the turn knob 9, the clamping bolt 8 is moved into the release position, in Fig. 1 to the left, so that the hub can be removed from the fork 1.
The accordingly embodied quick-clamping hub with theft protection has the advantage that in the anti-theft position the turn knob 9 as well as the sleeve 17 and the ring 6 can be freely rotated so that pliers cannot be applied in order to forcefully remove the aforementioned parts.
Furthermore, the clamping bolt 8 as well as the clamping nut 4 are completely enclosed by these rotating parts and thus cannot provide a point of action for applying pliers.
` 2150380 Reference Numerals 1 Fork 2 Threaded spindle
The other side of the threaded spindle 2 comprises the clamping mechanism proper of the quick-clamping hub. The respective clamping device 7 comprises first a clamping bolt 8, also in the form of a T-profiled nut, which is threaded onto the corresponding thread 3 of the threaded spindle 2. The head of the clamping bolt 8 is positioned in a corresponding depression of the external end face of the cylindrical turn knob 9 arranged on the clamping bolt 8. Thus, here the clamping bolt 8 also does not provide a point of action for ~1~0380 applying pliers. On the other side of the turn knob 9, relative to the head of the clamping bolt 8, a disk 10 is provided. At this disk a toothed ring 11 is fixedly arranged at the planar end face facing the turn knob 9. On the other side the disk 10 is provided with a spacer 12 unitary with the disk. The disk 10 comprises a through hole corresponding to the diameter of the threaded spindle 2, while the corresponding disk of the toothed ring 11 has an opening with a substantially square cross-sectional profile.
This cross-sectional profile matches a corresponding projection 13 of the clamping bolt 8 so that upon insertion of the unit, comprised of the disk 10, the toothed ring 11, and the spacer 12, onto the projection 13 of the clamping bolt 8 a positive locking of the clamping bolt 8 is provided when rotated.
Within the turn knob 9 a lock 14 is arranged.
This lock comprises a rotational cam 15 with a semi-circular shape, as can be seen especially in Fig. 3. By actuating the lock 14, for example, with a key, the semi-circular shape of the cam 15 can be pivoted downwardly and engages two teeth 11' of the toothed ring 11.
Furthermore it is shown in Fig. 1 that between the spacer 12 of the disk 10 and the corresponding fork 11 a separate spacer 16 is slipped onto the threaded spindle 2. On these two spacers 12, 16 a sleeve 17 is freely rotatably supported. The described quick-clamping hub for bicycles with theft protection functions as follows.
Before insertion of the wheel into the fork 1 the lock 14 is actuated such that the cam 15 with its semi-circular transverse profile is downwardly pivoted and positioned between two adjacent teeth 11' of the toothed ring 11. Thus, a positive locking between the cam 15 of the lock 14 and the teeth 11' of the toothed ring 11 is provided. By rotating the turn knob 9 the clamping bolt 8 is thus also rotated and displaced along the threaded spindle 2. Thus, the hub can be fixedly clamped onto the fork 1, whereby the turn knob 9 can be rotated by hand. In order to facilitate rotating of the turn knob 9 it is alternatively possible to insert into a corresponding blind hole of the turn knob 9 an actuating rod 18, as shown in Fig. 3.
This actuating rod 18 extends substantially transverse to the threaded spindle 2 so that the leverage for rotating the turn knob 9 is increased by the actuating rod 18.
After clamping the wheel onto the fork 1, the lock 14 is actuated and the cam 15 pivoted upwardly, as shown in Fig. 3. In this position the cam 15 is out of engagement with the toothed ring 11. This means that due to the lack of positive locking the rotational movement of the turn knob 9 is thus not transmitted to the toothed ring 11 and also not onto the clamping bolt 8 so that a release of the quick-clamping hub is not possible. This provides the required theft protection.
When it is desired to remove the wheel from the fork, which requires switching the clamping device 7 into the release position, the lock 14 is actuated and the cam 15 is moved into the area between two teeth 11' of the toothed ring 11.
Thus, a positive locking between the turn knob 9 and the clamping bolt 8 results (via the toothed ring ll). By rotating the turn knob 9, the clamping bolt 8 is moved into the release position, in Fig. 1 to the left, so that the hub can be removed from the fork 1.
The accordingly embodied quick-clamping hub with theft protection has the advantage that in the anti-theft position the turn knob 9 as well as the sleeve 17 and the ring 6 can be freely rotated so that pliers cannot be applied in order to forcefully remove the aforementioned parts.
Furthermore, the clamping bolt 8 as well as the clamping nut 4 are completely enclosed by these rotating parts and thus cannot provide a point of action for applying pliers.
` 2150380 Reference Numerals 1 Fork 2 Threaded spindle
3 Thread
4 Clamping nut Spacer 6 Ring 7 Clamping device 8 Clamping bolt 9 Turn knob Disk 11 Toothed ring 11' Tooth 12 Spacer 13 Projection 14 Lock Cam 16 Spacer 17 Sleeve 18 Actuating rod
Claims (10)
1. Quick-clamping hub for bicycles with a clamping device (7) protected against theft by a lock (14) and displaceable in the direction of the hub axis, characterized in that a threaded spindle (2) is provided extending along the axis of the hub, that on the thread (3) at the end of the threaded spindle (2) a cylindrical clamping bolt (8) is threaded, and that on the clamping bolt (8) a turn knob (9) that is manually actuatable is arranged which in the anti-theft position is freely rotatable on the clamping bolt (8) and is engagable for clamping by actuating the lock (14) such with the clamping bolt (8) that upon rotation of the turn knob (9) the clamping bolt (8) also rotates.
2. Quick-clamping hub according to claim 1, characterized in that the lock (14) is arranged at or within the turn knob (9).
3. Quick-clamping hub according to claim 1 or 2, characterized in that the turn knob (9) completely encloses the clamping bolt (8).
4. Quick-clamping hub according to one of the claims 1 to 3, characterized in that the clamping bolt (8) comprises a coaxial disk (10) which closes off the end face of the turn knob (9) which is facing the fork (1) of the bicycle and which at its inner side has a profiling such that the lock (14) arranged at the turn knob (9) can be brought into positive locking with the profiling.
5. Quick-clamping hub according to claim 4, characterized in that the profiling is formed by a toothed ring (11) fixedly arranged at the inner side of the disk (10) between teeth (11') of which a cam (15) of the lock (14) is engagable.
6. Quick-clamping hub according to claim 5, characterized in that the cam (15) has a semi-circular profile rotatable about its axis.
7. Quick-clamping hub according to one of the claims 4 to 6, characterized in that the clamping bolt (8) is a T-shaped profiled nut inserted from one side into the turn knob (9) onto which from the other side of the turn knob (9) the disk (10) can be axially inserted so as to provide positive locking.
8. Quick-clamping hub according to one of the claims 1 to 7, characterized in that in the area between the clamping device (7) and the fork (1) of the bicycle a freely rotatable sleeve (17) is arranged.
9. Quick-clamping hub according to one of the claims 1 to 8, characterized in that the quick-clamping hub at the other end of the threaded spindle (2) has a fixedly arranged clamping nut (4) on which a ring (6) is freely rotatably supported.
10. Quick-clamping hub according to one of the claims 1 to 9, characterized in that into the turn knob (9) a separate actuating rod (18) is insertable so as to extend transverse to the threaded spindle (2).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEG9314583.7U | 1993-09-29 | ||
| DE9314583U DE9314583U1 (en) | 1993-09-29 | 1993-09-29 | Quick release hub for bicycles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2150380A1 true CA2150380A1 (en) | 1995-04-06 |
Family
ID=6898604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2150380 Abandoned CA2150380A1 (en) | 1993-09-29 | 1994-08-19 | Quick-clamping hub for bicycles |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0669883A1 (en) |
| CA (1) | CA2150380A1 (en) |
| DE (1) | DE9314583U1 (en) |
| WO (1) | WO1995009100A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9751362B2 (en) * | 2014-11-18 | 2017-09-05 | Shimano Inc. | Wheel securing axle and bicycle hub assembly |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7908505A (en) * | 1979-11-22 | 1981-06-16 | Lips Slotenfab | Detachable item theft-prevention device - has rotary head engaged with screwed shank by lock |
| FR2671148A1 (en) * | 1990-12-28 | 1992-07-03 | Gimeno Michel Ange | Anti-theft nut |
| WO1992021551A1 (en) * | 1991-05-28 | 1992-12-10 | Holger Fell | Quick-fit hub for bicycles |
-
1993
- 1993-09-29 DE DE9314583U patent/DE9314583U1/en not_active Expired - Lifetime
-
1994
- 1994-08-19 CA CA 2150380 patent/CA2150380A1/en not_active Abandoned
- 1994-08-19 WO PCT/DE1994/000961 patent/WO1995009100A1/en not_active Application Discontinuation
- 1994-08-19 EP EP94923667A patent/EP0669883A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| DE9314583U1 (en) | 1993-11-25 |
| EP0669883A1 (en) | 1995-09-06 |
| WO1995009100A1 (en) | 1995-04-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1203164B1 (en) | Tamper resistant fastener | |
| US4674306A (en) | Vehicle and assembly locking and wrenching apparatus | |
| US4621873A (en) | Quick release assembly with integral lock | |
| US5007260A (en) | Bicycle locking system | |
| US4951487A (en) | Bicycle wheel locking means | |
| EP1595780B1 (en) | Apparatus for mounting a hub brake to a bicycle frame | |
| US8882149B2 (en) | Steering device | |
| US5863166A (en) | Anti-theft locking device | |
| US5339660A (en) | Quick release hub | |
| US5875662A (en) | Quick release assembly for bicycle wheels | |
| US20120161503A1 (en) | Axle system for a two-wheeled vehicle | |
| US4961611A (en) | Vehicle wheel cover | |
| US20110169245A1 (en) | Vehicle anti-theft device | |
| US8261585B2 (en) | Quick release mechanism with integrated/attached multi-tool | |
| US5950506A (en) | Locking device for bicycles | |
| CA2150380A1 (en) | Quick-clamping hub for bicycles | |
| US6152541A (en) | Quick release bicycle axle with theft-deterrent locking end cap | |
| US11325676B2 (en) | Electric drive device for a bicycle | |
| GB2283217A (en) | Steering lock for a bicycle | |
| WO2007142598A1 (en) | Steering device for vehicles and boats | |
| US5823024A (en) | Apparatus for disabling the steering of a vehicle | |
| WO2004027279A1 (en) | Free-wheeling hub device | |
| WO1999019636A1 (en) | Anti-theft locking device | |
| JP2002264730A (en) | Fork support device of bicycle | |
| US20210362799A1 (en) | Quickly detachable and rotatable bicycle handlebar stem |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |