CA2074997A1 - Bicycle lock - Google Patents
Bicycle lockInfo
- Publication number
- CA2074997A1 CA2074997A1 CA 2074997 CA2074997A CA2074997A1 CA 2074997 A1 CA2074997 A1 CA 2074997A1 CA 2074997 CA2074997 CA 2074997 CA 2074997 A CA2074997 A CA 2074997A CA 2074997 A1 CA2074997 A1 CA 2074997A1
- Authority
- CA
- Canada
- Prior art keywords
- bicycle
- lock
- shackle
- housing
- seat
- 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
- 230000007246 mechanism Effects 0.000 claims abstract description 38
- 229910000760 Hardened steel Inorganic materials 0.000 claims description 12
- 239000002131 composite material Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 230000000717 retained effect Effects 0.000 claims description 2
- 238000003466 welding Methods 0.000 description 2
- 240000004904 Amorphophallus paeoniifolius Species 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Landscapes
- Steering Devices For Bicycles And Motorcycles (AREA)
Abstract
ABSTRACT
The invention relates to a lock for a bicycle and, more specifically, to a device which utilizes, at least in part, the seat/seat post for the purpose of locking the entire bicycle. The invention takes advantage of these already available components of the bicycle, which when not in use in a seating configuration, may be readily converted to use as a locking mechanism. This is achieved, in general, by providing either integrally or as a separate element, a shackle which is lockingly engageable with these components to form a lockable loop which can be used to lock the bicycle when not in use.
The invention relates to a lock for a bicycle and, more specifically, to a device which utilizes, at least in part, the seat/seat post for the purpose of locking the entire bicycle. The invention takes advantage of these already available components of the bicycle, which when not in use in a seating configuration, may be readily converted to use as a locking mechanism. This is achieved, in general, by providing either integrally or as a separate element, a shackle which is lockingly engageable with these components to form a lockable loop which can be used to lock the bicycle when not in use.
Description
2~7~7 Field of tlle Invention The invention relates to a lock for bicycles.
BnckPrl)und nf th~ Invention Bicycles have proven to be an excellent mode of transportation.
5 Unfortunately in today's society, one cannot leave a bicycle unattended, even if locked, without fear of it, either in whole or in part, being stolen.
Heretofore, various mechanisms and schemes for locking or securing bicycles have been devised, some enjoying more success than others. It has been found that locking devices which merely interfere with the normal operation of the 10 bicycle so as to render them undrivable, such as those which lock the handlebars at a predetermined angle or others that prevent one or both of the wheels from rotating, tend to be impractical as the entire bicycle is stolen and either disassembled for parts or brought to a location where the locking mechanism may be disab]ed and/or removed at leisure. More success has been achieved with locks of the type which 15 anchor the bicycle to a fixed or immovable object. However, such locks prove ineffective if not made from heavy duty components and high strength materials or against the theft of those individual components of a bicycle which are readily removable with simple tools. As for the latter, bicycles are being made with front and/or rear wheels mounted by way of wing nuts so that they might easily be removed 20 from their operational position to a locking position whereby a heavy duty lock is typically engaged around the frame, both wheels and the object to which the bicycle is secured. In a similar vein, in order to deter theft of bicycle seats, the downpipe of the bicycle in which the seat post is secured is typically provided with a quick release mechanism so that the user may quickly and easily remove the seat. However, due 25 to the configuration of the seat and seat post, which does not lend itself well to being included in the aforementioned locking arrangement, the cyclers are resigned to having to carry their seat/seat posts with them wherever they go.
Even so, the advantages of using such heavy duty locking devices tend to outweigh this disadvantage and others, such as the fact that by their very nature, 30 they tend to be cumbersome and heavy. Speed enthusiasts will also recognize the ; disadvantages of the significant additional weight, which weight some bicycle manufacturers go to extremes to reduce.
. :
: , .
:' " :
2 0 7 ~ 7 SUMMAl~Y OF TIIE INVENTION
The present invention overcomes the aforementioned disadvantages and drawbacks by utilizing at least in part the seat/seat post for the purpose of locking the entire bicycle. Accordingly, there is provided in one aspect of the invention, a5 lock for a bicycle having a frame with a hole therein adapted to releasably receive a seat post therein, wherein the lock comprises a housing adapted to support a bicycle seat; a first member rigidly connected to the housing, the first member extends generally perpendicularly from the housing and terminates at a free end; and a rigid shackle which has first and second ends. The first end has means thereon for 10 engaging the free end of the first member while the second end has means thereon for engaging and being secured by a lock mechanism in the housing. The first end, when engaged with the free end of the first member, cannot be disengaged therefrom when the second end is secured by the lock mechanism. When not used in its locking configuration, the first member and the shackle arrange to matingly form the seat post 15 for the bicycle.
In accordance with a second aspect of the invention, there is provided ~ a lock for a bicycle having a frame with a hole therein adapted to releasably receive - a seat post therein, wherein the lock comprises a seat support member which is adapted to support a bicycle seat; a first member rigidly connected to the seat support 20 member, the first member extends generally perpendicularly from the seat support and terminates at a ~ree end; a lock mechanism which is associated with the free end; and a rigid shackle which has first and second ends. The first end has means thereon for engaging and being secured by the lock mechanism while the second end has means thereon for engaging the seat support member. The second end, when engaged with 25 the seat support member, cannot be disengaged therefrom when the first end issecured by the lock mechanism. When not being used as a lock, the first member and the shackle arrange to matingly form the seat post for the bicycle.
According to another aspect of the invention there is provided a lock for a bicycle having a frame with a hole therein adapted to releasably receive a seat post 30 therein, wherein the lock comprises a first member adapted to support a seat; a second member rigidly connected to the first member in a generally perpendicularrelationship therewith; a lock mechanism associated with either the first or second 2~7'7.~7 member; and separahle shackle means capable of being retained in a locked operative position with the first and second members so as to form a closed loop when in alocked position. When not being used as a lock, the second member forms the seatpost for the bicycle.
In accordance with yet another aspect of the invention, there is provided a lock for a bicycle which comprises a first member for supporting a bicycle seat; a second member rigidly connected to the first member, the second member adapted to form a seat post for a bicycle; and separable shackle means lockingly operative between the first and second members for forming a lockable loop when the secondmember is removed from the bicycle.
According to still another aspect of the invent;on, there is provided a lock for a bicycle having a frame with a hole therein adapted to releasably receive a seat post therein, wherein the lock comprises a housing having a locking mechanism which is associated therewith, the housing being adapted to support a bicycle seat;
~ 15 tubular seat post means which depends downwardly from the housing; and U-shaped - shackle means having a pair of parallel legs terminating at free ends. A pair of ;- spaced-apart openings on the housing are each adapted to receive a respective free end of the shackle. Each of the free ends have means thereon adapted to be engaged by the lock mechanism for securing the ends within the housing, wherein one of the -~` 20 openings is situated within the seat post such that in order to lockingly engage a free t` end of one of the legs therein, that leg must be inserted within the tubular seat post.
The lock is designed to replace presently available seat/seat post . ~- arrangements thus providing an lock which forms an integral part of the bicycle when the bicycle is in use, but which is readily convertible to a lock for the bicycle when needed as such, thereby making it unnecessary for the rider to remove and carry ~he seat/seat post when the locked bicycle is unattended.
Further features and advantages of the present invention will become apparent from the following description and attached drawings.
, BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is a cross-sectional view of the preferred embodiment of ~he invention in its seating configuration;
2 ~ 7 L~ ~9 ~ 7 Fig. 2 is a cross-sectional view of the embodiment of Fig. 1, shown in its locking configllration;
Fig. 3 is a cross-sectional view taken along line III-III of Fig. 1;
Fig. 4 is an enlarged cross-sectional view taken along line IV-IV of Fig.
5 1;
Fig. 5 is an enlarged detail of the shackle element connection with the vertical member;
Fig. 6 is a perspective view of the end of the shackle element which connects to the vertical member;
lQ Fig. 7 is a sketch of the device operative as a lock for a bicycle;
Fig. 8 is a sketch of the device operative as the seat/seat post arrangement for a bicycle;
Figs. 9 to 12 are various views illustrating alternate embodiments of the invention; and Fig. 13 is an enlarged cross-sectional view of the embodiment of Fig. 12 taken along line XIII-XIII.
DETAILED DESCRIPTI~N OF THE PREFERRED EMBODIMENT
Referring to Figs. 1 and 2, there is shown the preferred embodiment of the invention in its seating configuration and locking configuration respectively. In general, the saddle-lock comprises a substantially horizontal and generally cylindrical housing 10 to which a seat or saddle 12 (shown in phantom) is affixed. The housing has a member 14 permanently and rigidly attached thereto, such as by welding, which extends generally vertically downwardly therefrom and terminates at a free end 16. A rigid, L-shaped shackle 18 has a first leg 19 terminating at a first end 20 engageable with the free end 16 of the vertical member 14. The second leg 21 of the shackle 18 terminates at a second end 22 which is lockingly engageable in a conventional manner with a lock mechanisrn 24 contained within the housing 10. As shown in Fig. 1, the housing 10 is provided with a opening 26 adjacent the lock mechanism 24 which is adapted to receive the second end 22 of the shacklé 18. The opening 26 has a shape substantially the same as that of the cross-section of the second end 22 such that the walls 27 of the openir~g 26 laterally support the end 22 when inserted therein. The lock mechanism 24 has an extensible detent 28 operable, 2~7' for e.Yam~ le hy means of a key, to eng~lge a recess 3() provided in the second end 22 so as to capal le of sec~lrin~ the second end 22 within the housing lO.
The manner in which the first end 20 of the shackle 18 is engaged with the free end 16 of the vertical member 14 is such that when the second end 22 of the shackle is lockingly engaged with the lock mechanism 24, the first end 22 cannot be disengaged from the free end 16. This feature may be achieved by providing, for example, an outwardly curved or angled foot 32 at the free end which is receivable within a throughbore 34 in the first end 20 of the shackle 18 (see Fig. S). The foot 32 cannot e7ctend outwardly more than the extent to which the outer surface 31 of the vertical member 14 projects, as shown by the dashed line 33 in Fig. 5, for reasons which will be described hereinbelow. The foot 32 may be tapered to facilitate engagement of the free end 16 with the throughbore 20 and to permit the shackle 18 to be pivoted relative to the foot 32 as it is slid thereon so as to dispose the second 22 end of the shackle 18 at the appropriate angle to engage the housing 10. In this regard, as the second end 22 is being inserted in the opening 26 within housing 10, the first end 20 is sliding along the generally straight portion 36 of the free end 16 just above the foot 32 at which point the cross-section of the free end 16 is substantially '`~ the same as the shape of the throughbore 34 (see Fig. 6). This prevents any lateral movement of the first end 2û of the shackle 18 with respect to the free end 16 of the ~ 2Q vertical member 14 while the second end is lockingly engaged within the housing 10.
; Additional lateral suppor~ may be realized at this connection by providing a boss 36 about throughbore. Due to the rigidity of the shack]e 18, the foot 32 thus prevents the first end 20 of the shackle from being pried *om the free end 16 of the vertical member 14.
As can be seen in Figs. 1 and 2, the housing 10 and the vertical member 14 form a generally kshaped member in which shackle 18 is nestable (see Fig. 1).The vertical member 14 and the second leg 21 of the shackle 18 preferably have semi-circular (see Fig. 3) or other cross-sections which when nested, matingly combine to conform to the shape of the downtube 38, i.e. the hole in the bicycle frame 40 in which the seat post is normally inserted (see Fig. 7). It is for this purpose that the foot 32 cannot extend beyond boundary line 33 as mentioned above. This permits the saddle-lock to be used as a seat/seat post combination when not in use as a lock. In a similar fashion, the housing 10 and first leg 19 may be of such configuration (see Fig.
2~7~
4) that they are mutually s~lpportive when nested, such as by providing mating planar surfaces 42a,42b on the housing 10 and first leg 19, respectively A detent 44 and recess 46 combination may be provided to maintain the components in their nestedconfiguratic)n, to facilitate their assembly and insertion into the frame 40 of the bicyc]e S and to provide addition integral strength to the nested arrangement. A clamp (not shown) may also be employed separately or in addition to the detent and recess combination 44,46 for a similar purpose While the various components of the saddle-lock may be made of hardened steel, it is contemplated that composite materials might also be used comprising cores 60 of hardened steel (see Fig 3) particulary in the vertical member 14 and the shackle 18 with the remainder of the cross-section constituting an outer layer 62 of lighter material such as hard plastic or aluminum. This would serve to reduce significantly the overall weight of the saddle-lock as well as to improveweatherability and to add to the look and attractiveness of the saddle-lock.
-- 15 The saddle-lock can be seen as it would be used in a typical arrangement in its locking configuration in Fig. 7 and in its seating configuration in Fig. 8. A bicycle 48 is shown having a frame 40 in which the downtube 38 is provided with a conventional quick-release mechanism 50 for securing the seat post therein at the desired height. In the case of the present invention, however, it is the vertical ~; 20 member 14 and second leg 21 combined to form the seat post 52 which is disposed . ~ within the downtube 38. When locking of the bicycle is desired, i.e. conversion to its locking configuration, the quick-release mechanism 50 is actuated to permit the seat post 52 to be withdrawn from the downtube 38. The shackle 18 is detached and rotated approximately 180 so that the first end 20 of the shackle 18 is positioned near 25 the free end 16 of the vertical member 14 and so as to generally surround those items to be locked, for example the frame 40, rear wheel 54, dismounted front wheel 56 and the object to which the bicycle is to be locked such as a public post 58 as shown in Fig. 7. The foot 32 is inserted into throughbore 34 and the shackle 18 is rotated slightly as the first end 20 of the shackle is slid along the curved portion of the foot 30 26 and then translated slightly to insert the second end 22 of the shackle 18 into the opening 26 in the housing 10 wherein it is subsequently lockingly secured therein by operating the lock mechanism 24. A similar, but opposite procedure is followed to return the saddle-lock to its seating configuration.
2~7~7 Reterring to Fig, 9, there is shown in its locking configuration a variation of the inventic n illustrated in Figs. 1 and 2, in which reference numerals for like elements are incremented by 100. A seat or saddle 112 (shown in phantom) is attached to a seat support member 110 in such a manner that the seat may not be readily removed therefrom without causing damage to the seat 112. The support member 110 has a member 114 permanently affixed thereto and extending generally vertically downwardly therefrom and terminating at a free end 116. Associated with the free end 116 is a lock mechanism 124. By providing the lock mechanism 124 atthe free end 116 of the vertical member 114, the lock mechanism 124 will be protectively housed within the downtube of the bicycle when the saddle-lock is in its seating configuration. A rigid, L-shaped shackle 118 has a first leg 119 terminating at a first end 120 lockingly engageable in a conventional manner with the lock mechanism 124. The second leg 121 of the shackle 118 terminates at a secondend 122 which is engageable with the forward end of seat support member 110. As shown in Fig. 9, the free end 116 of vertical member 114 is provided with a opening 126, extending through the vertical member 114 and located adjacent the lock mechanism 124, adapted to receive the first end 120 of the shackle 118. The lockmechanism 124 may have an extensible detent 128 operable, for example by means of a key, to engage a recess 130 provided on the first end 120 so as to be capable of securing the first end 120 to the free end 116 of the vertical member 114.
The manner in which the second end 122 of the shackle 118 is engaged with the seat support member 110 is such that when the first end 120 of the shackle is lockingly engaged with the lock mechanism 124, the second end 122 cannot be disengaged from the support member 110. This can be achieved, for example by providing the support member 110 with detent means 170 extending partially over and at a distance above a hole 172 in the support member 110. The hole 172 permits the second end 122 of the shackle to be inserted at an angle and rotated whereby a recess 174 formed in the second end 122 engages the detent 170. The hole 172 is of suchshape as to allow the end 122 of the shackle 118 to be inserted at an angle and as to provide substantial lateral support of the end 122 when secured therein. As the shackle 118 is rotated, the first end 120 passes through opening 126 whereupon arecess 130 in the first end 120 aligns itself with the lock detent 128 of the locking 2~7~9~
mechanism. Sul-scquent operation ot the lock mechanism 124 secllres the first end 12() in the opening 126, preventing removal of the shackle 118 As with the previo~ls embodiment, the two L-shaped components (i.e.
the support meml er l ln and the vertical member 114, and the shackle) are nestable S such that the secnnd leg 121 of the shackle 118 and the vertical member 114 are matingly engageable to form the seat post for the bicycle. In order to ensure compatibility when nested, a slot 176 is provided in the free end 116 to accommodate end 122. A similar construction using cores 160 of hardened steel and outer layers 162 of lighter materials may likewise be employed.
In Figs. 10 and 11, there is illustrated another variation of the invention.
Like elements of the invention are given the same reference numerals as denoted in ` Figs. 1 and 2, but incremented by 200. In these cases, a cylindrical, hardened steel tube forms the entire seat post 280 while the rigid, L-shaped shackle 218 is provided as a separate element. In the seating configuration shown in Fig. 10, the shackle 218 is conveniently attached by means of a bracket 282 to the seat post 280 such that the shorter leg 219 is disposed within a passageway 286 located between the seat 212 and the seat support 210 and the longer leg 221 is allowed to depend freely between the rear forks 288 of the bicycle. In Fig. 11, the shackle 218 is attached to the a convenient location on the frame 240, such as under cross-bar 289, by means of brackets 284. The lock mechanism 224 can be arranged either on the front of the support 210 (Fig. 10) or on the free end 216 of seat post 280 (Fig. 11), neitherarrangement being exclusive to the variation depicted in either Figure. The manner in which locking of the shackle 218 to the seat support-seat post 210,280 arrangement is effected may be achieved using the strategy detailed above with respect to the embodiment illustrated in Fig.9.
In yet another variation shown in Figs. 12 and 13, with like elements being referenced by numerals incremented by 300, a seat 312 (shown in phantom) is attached to and supported by a generally cylindrical housing 310. Housing 310 has a tubular seat post rigidly attached thereto, such as by welding, which extends generally vertically downwardly therefrom. A separable U-shaped shackle 391 of generally circular cross-section is provided having a pair of spaced-apart, parallel legs 392a,392b, each with a free end 393a,393b, respectively. Circular openings 394a,394b are provided within housing 310 which are adapted to receive respective ends 393a,393b 2~7~
of tlle shackle 391. Opening 394a is located generally coaxial with seat post 390 such that leg 392a must l~e inserted longitudinally through seat post 390 in order for its end 393a to be received thereby. A lock mecllanism 324 is operable, for example by means of a key, within the housing 310 to lockingly engage both ends 393a,393b, thereby securing the shackle 391 to the housing 310. As can be seen in Fig. 13, a semi-cylindrical engagement member 395 which is rotatable within housing 310 has a coupling plate 396 having a square hole therein adapted to receive square driving pin 397 of the lock mechanism 324. Actuation of the lock mechanism 324 results in the rotation of driving pin 397, thus causing the semi-cylindrical engagement member 395 to engage a recess 398 provided in each of the ends 393a,393b, thereby locking the shackle 391 to the housing 310. Although the walls 399 of the openings 394a,394b. should provide adequate lateral support for the ends 393a,393b of the shackle 391, an annular collar 400 may be inserted at the end of the seat post 390 to provide additional support.
While there has been described and i]lustrated several embodiments of the invention, it will be understood that various modifications and/or substitutions may be made thereto without departing from the spirit and scope of the invention as - defined in the following claims.
.:
'~,
BnckPrl)und nf th~ Invention Bicycles have proven to be an excellent mode of transportation.
5 Unfortunately in today's society, one cannot leave a bicycle unattended, even if locked, without fear of it, either in whole or in part, being stolen.
Heretofore, various mechanisms and schemes for locking or securing bicycles have been devised, some enjoying more success than others. It has been found that locking devices which merely interfere with the normal operation of the 10 bicycle so as to render them undrivable, such as those which lock the handlebars at a predetermined angle or others that prevent one or both of the wheels from rotating, tend to be impractical as the entire bicycle is stolen and either disassembled for parts or brought to a location where the locking mechanism may be disab]ed and/or removed at leisure. More success has been achieved with locks of the type which 15 anchor the bicycle to a fixed or immovable object. However, such locks prove ineffective if not made from heavy duty components and high strength materials or against the theft of those individual components of a bicycle which are readily removable with simple tools. As for the latter, bicycles are being made with front and/or rear wheels mounted by way of wing nuts so that they might easily be removed 20 from their operational position to a locking position whereby a heavy duty lock is typically engaged around the frame, both wheels and the object to which the bicycle is secured. In a similar vein, in order to deter theft of bicycle seats, the downpipe of the bicycle in which the seat post is secured is typically provided with a quick release mechanism so that the user may quickly and easily remove the seat. However, due 25 to the configuration of the seat and seat post, which does not lend itself well to being included in the aforementioned locking arrangement, the cyclers are resigned to having to carry their seat/seat posts with them wherever they go.
Even so, the advantages of using such heavy duty locking devices tend to outweigh this disadvantage and others, such as the fact that by their very nature, 30 they tend to be cumbersome and heavy. Speed enthusiasts will also recognize the ; disadvantages of the significant additional weight, which weight some bicycle manufacturers go to extremes to reduce.
. :
: , .
:' " :
2 0 7 ~ 7 SUMMAl~Y OF TIIE INVENTION
The present invention overcomes the aforementioned disadvantages and drawbacks by utilizing at least in part the seat/seat post for the purpose of locking the entire bicycle. Accordingly, there is provided in one aspect of the invention, a5 lock for a bicycle having a frame with a hole therein adapted to releasably receive a seat post therein, wherein the lock comprises a housing adapted to support a bicycle seat; a first member rigidly connected to the housing, the first member extends generally perpendicularly from the housing and terminates at a free end; and a rigid shackle which has first and second ends. The first end has means thereon for 10 engaging the free end of the first member while the second end has means thereon for engaging and being secured by a lock mechanism in the housing. The first end, when engaged with the free end of the first member, cannot be disengaged therefrom when the second end is secured by the lock mechanism. When not used in its locking configuration, the first member and the shackle arrange to matingly form the seat post 15 for the bicycle.
In accordance with a second aspect of the invention, there is provided ~ a lock for a bicycle having a frame with a hole therein adapted to releasably receive - a seat post therein, wherein the lock comprises a seat support member which is adapted to support a bicycle seat; a first member rigidly connected to the seat support 20 member, the first member extends generally perpendicularly from the seat support and terminates at a ~ree end; a lock mechanism which is associated with the free end; and a rigid shackle which has first and second ends. The first end has means thereon for engaging and being secured by the lock mechanism while the second end has means thereon for engaging the seat support member. The second end, when engaged with 25 the seat support member, cannot be disengaged therefrom when the first end issecured by the lock mechanism. When not being used as a lock, the first member and the shackle arrange to matingly form the seat post for the bicycle.
According to another aspect of the invention there is provided a lock for a bicycle having a frame with a hole therein adapted to releasably receive a seat post 30 therein, wherein the lock comprises a first member adapted to support a seat; a second member rigidly connected to the first member in a generally perpendicularrelationship therewith; a lock mechanism associated with either the first or second 2~7'7.~7 member; and separahle shackle means capable of being retained in a locked operative position with the first and second members so as to form a closed loop when in alocked position. When not being used as a lock, the second member forms the seatpost for the bicycle.
In accordance with yet another aspect of the invention, there is provided a lock for a bicycle which comprises a first member for supporting a bicycle seat; a second member rigidly connected to the first member, the second member adapted to form a seat post for a bicycle; and separable shackle means lockingly operative between the first and second members for forming a lockable loop when the secondmember is removed from the bicycle.
According to still another aspect of the invent;on, there is provided a lock for a bicycle having a frame with a hole therein adapted to releasably receive a seat post therein, wherein the lock comprises a housing having a locking mechanism which is associated therewith, the housing being adapted to support a bicycle seat;
~ 15 tubular seat post means which depends downwardly from the housing; and U-shaped - shackle means having a pair of parallel legs terminating at free ends. A pair of ;- spaced-apart openings on the housing are each adapted to receive a respective free end of the shackle. Each of the free ends have means thereon adapted to be engaged by the lock mechanism for securing the ends within the housing, wherein one of the -~` 20 openings is situated within the seat post such that in order to lockingly engage a free t` end of one of the legs therein, that leg must be inserted within the tubular seat post.
The lock is designed to replace presently available seat/seat post . ~- arrangements thus providing an lock which forms an integral part of the bicycle when the bicycle is in use, but which is readily convertible to a lock for the bicycle when needed as such, thereby making it unnecessary for the rider to remove and carry ~he seat/seat post when the locked bicycle is unattended.
Further features and advantages of the present invention will become apparent from the following description and attached drawings.
, BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is a cross-sectional view of the preferred embodiment of ~he invention in its seating configuration;
2 ~ 7 L~ ~9 ~ 7 Fig. 2 is a cross-sectional view of the embodiment of Fig. 1, shown in its locking configllration;
Fig. 3 is a cross-sectional view taken along line III-III of Fig. 1;
Fig. 4 is an enlarged cross-sectional view taken along line IV-IV of Fig.
5 1;
Fig. 5 is an enlarged detail of the shackle element connection with the vertical member;
Fig. 6 is a perspective view of the end of the shackle element which connects to the vertical member;
lQ Fig. 7 is a sketch of the device operative as a lock for a bicycle;
Fig. 8 is a sketch of the device operative as the seat/seat post arrangement for a bicycle;
Figs. 9 to 12 are various views illustrating alternate embodiments of the invention; and Fig. 13 is an enlarged cross-sectional view of the embodiment of Fig. 12 taken along line XIII-XIII.
DETAILED DESCRIPTI~N OF THE PREFERRED EMBODIMENT
Referring to Figs. 1 and 2, there is shown the preferred embodiment of the invention in its seating configuration and locking configuration respectively. In general, the saddle-lock comprises a substantially horizontal and generally cylindrical housing 10 to which a seat or saddle 12 (shown in phantom) is affixed. The housing has a member 14 permanently and rigidly attached thereto, such as by welding, which extends generally vertically downwardly therefrom and terminates at a free end 16. A rigid, L-shaped shackle 18 has a first leg 19 terminating at a first end 20 engageable with the free end 16 of the vertical member 14. The second leg 21 of the shackle 18 terminates at a second end 22 which is lockingly engageable in a conventional manner with a lock mechanisrn 24 contained within the housing 10. As shown in Fig. 1, the housing 10 is provided with a opening 26 adjacent the lock mechanism 24 which is adapted to receive the second end 22 of the shacklé 18. The opening 26 has a shape substantially the same as that of the cross-section of the second end 22 such that the walls 27 of the openir~g 26 laterally support the end 22 when inserted therein. The lock mechanism 24 has an extensible detent 28 operable, 2~7' for e.Yam~ le hy means of a key, to eng~lge a recess 3() provided in the second end 22 so as to capal le of sec~lrin~ the second end 22 within the housing lO.
The manner in which the first end 20 of the shackle 18 is engaged with the free end 16 of the vertical member 14 is such that when the second end 22 of the shackle is lockingly engaged with the lock mechanism 24, the first end 22 cannot be disengaged from the free end 16. This feature may be achieved by providing, for example, an outwardly curved or angled foot 32 at the free end which is receivable within a throughbore 34 in the first end 20 of the shackle 18 (see Fig. S). The foot 32 cannot e7ctend outwardly more than the extent to which the outer surface 31 of the vertical member 14 projects, as shown by the dashed line 33 in Fig. 5, for reasons which will be described hereinbelow. The foot 32 may be tapered to facilitate engagement of the free end 16 with the throughbore 20 and to permit the shackle 18 to be pivoted relative to the foot 32 as it is slid thereon so as to dispose the second 22 end of the shackle 18 at the appropriate angle to engage the housing 10. In this regard, as the second end 22 is being inserted in the opening 26 within housing 10, the first end 20 is sliding along the generally straight portion 36 of the free end 16 just above the foot 32 at which point the cross-section of the free end 16 is substantially '`~ the same as the shape of the throughbore 34 (see Fig. 6). This prevents any lateral movement of the first end 2û of the shackle 18 with respect to the free end 16 of the ~ 2Q vertical member 14 while the second end is lockingly engaged within the housing 10.
; Additional lateral suppor~ may be realized at this connection by providing a boss 36 about throughbore. Due to the rigidity of the shack]e 18, the foot 32 thus prevents the first end 20 of the shackle from being pried *om the free end 16 of the vertical member 14.
As can be seen in Figs. 1 and 2, the housing 10 and the vertical member 14 form a generally kshaped member in which shackle 18 is nestable (see Fig. 1).The vertical member 14 and the second leg 21 of the shackle 18 preferably have semi-circular (see Fig. 3) or other cross-sections which when nested, matingly combine to conform to the shape of the downtube 38, i.e. the hole in the bicycle frame 40 in which the seat post is normally inserted (see Fig. 7). It is for this purpose that the foot 32 cannot extend beyond boundary line 33 as mentioned above. This permits the saddle-lock to be used as a seat/seat post combination when not in use as a lock. In a similar fashion, the housing 10 and first leg 19 may be of such configuration (see Fig.
2~7~
4) that they are mutually s~lpportive when nested, such as by providing mating planar surfaces 42a,42b on the housing 10 and first leg 19, respectively A detent 44 and recess 46 combination may be provided to maintain the components in their nestedconfiguratic)n, to facilitate their assembly and insertion into the frame 40 of the bicyc]e S and to provide addition integral strength to the nested arrangement. A clamp (not shown) may also be employed separately or in addition to the detent and recess combination 44,46 for a similar purpose While the various components of the saddle-lock may be made of hardened steel, it is contemplated that composite materials might also be used comprising cores 60 of hardened steel (see Fig 3) particulary in the vertical member 14 and the shackle 18 with the remainder of the cross-section constituting an outer layer 62 of lighter material such as hard plastic or aluminum. This would serve to reduce significantly the overall weight of the saddle-lock as well as to improveweatherability and to add to the look and attractiveness of the saddle-lock.
-- 15 The saddle-lock can be seen as it would be used in a typical arrangement in its locking configuration in Fig. 7 and in its seating configuration in Fig. 8. A bicycle 48 is shown having a frame 40 in which the downtube 38 is provided with a conventional quick-release mechanism 50 for securing the seat post therein at the desired height. In the case of the present invention, however, it is the vertical ~; 20 member 14 and second leg 21 combined to form the seat post 52 which is disposed . ~ within the downtube 38. When locking of the bicycle is desired, i.e. conversion to its locking configuration, the quick-release mechanism 50 is actuated to permit the seat post 52 to be withdrawn from the downtube 38. The shackle 18 is detached and rotated approximately 180 so that the first end 20 of the shackle 18 is positioned near 25 the free end 16 of the vertical member 14 and so as to generally surround those items to be locked, for example the frame 40, rear wheel 54, dismounted front wheel 56 and the object to which the bicycle is to be locked such as a public post 58 as shown in Fig. 7. The foot 32 is inserted into throughbore 34 and the shackle 18 is rotated slightly as the first end 20 of the shackle is slid along the curved portion of the foot 30 26 and then translated slightly to insert the second end 22 of the shackle 18 into the opening 26 in the housing 10 wherein it is subsequently lockingly secured therein by operating the lock mechanism 24. A similar, but opposite procedure is followed to return the saddle-lock to its seating configuration.
2~7~7 Reterring to Fig, 9, there is shown in its locking configuration a variation of the inventic n illustrated in Figs. 1 and 2, in which reference numerals for like elements are incremented by 100. A seat or saddle 112 (shown in phantom) is attached to a seat support member 110 in such a manner that the seat may not be readily removed therefrom without causing damage to the seat 112. The support member 110 has a member 114 permanently affixed thereto and extending generally vertically downwardly therefrom and terminating at a free end 116. Associated with the free end 116 is a lock mechanism 124. By providing the lock mechanism 124 atthe free end 116 of the vertical member 114, the lock mechanism 124 will be protectively housed within the downtube of the bicycle when the saddle-lock is in its seating configuration. A rigid, L-shaped shackle 118 has a first leg 119 terminating at a first end 120 lockingly engageable in a conventional manner with the lock mechanism 124. The second leg 121 of the shackle 118 terminates at a secondend 122 which is engageable with the forward end of seat support member 110. As shown in Fig. 9, the free end 116 of vertical member 114 is provided with a opening 126, extending through the vertical member 114 and located adjacent the lock mechanism 124, adapted to receive the first end 120 of the shackle 118. The lockmechanism 124 may have an extensible detent 128 operable, for example by means of a key, to engage a recess 130 provided on the first end 120 so as to be capable of securing the first end 120 to the free end 116 of the vertical member 114.
The manner in which the second end 122 of the shackle 118 is engaged with the seat support member 110 is such that when the first end 120 of the shackle is lockingly engaged with the lock mechanism 124, the second end 122 cannot be disengaged from the support member 110. This can be achieved, for example by providing the support member 110 with detent means 170 extending partially over and at a distance above a hole 172 in the support member 110. The hole 172 permits the second end 122 of the shackle to be inserted at an angle and rotated whereby a recess 174 formed in the second end 122 engages the detent 170. The hole 172 is of suchshape as to allow the end 122 of the shackle 118 to be inserted at an angle and as to provide substantial lateral support of the end 122 when secured therein. As the shackle 118 is rotated, the first end 120 passes through opening 126 whereupon arecess 130 in the first end 120 aligns itself with the lock detent 128 of the locking 2~7~9~
mechanism. Sul-scquent operation ot the lock mechanism 124 secllres the first end 12() in the opening 126, preventing removal of the shackle 118 As with the previo~ls embodiment, the two L-shaped components (i.e.
the support meml er l ln and the vertical member 114, and the shackle) are nestable S such that the secnnd leg 121 of the shackle 118 and the vertical member 114 are matingly engageable to form the seat post for the bicycle. In order to ensure compatibility when nested, a slot 176 is provided in the free end 116 to accommodate end 122. A similar construction using cores 160 of hardened steel and outer layers 162 of lighter materials may likewise be employed.
In Figs. 10 and 11, there is illustrated another variation of the invention.
Like elements of the invention are given the same reference numerals as denoted in ` Figs. 1 and 2, but incremented by 200. In these cases, a cylindrical, hardened steel tube forms the entire seat post 280 while the rigid, L-shaped shackle 218 is provided as a separate element. In the seating configuration shown in Fig. 10, the shackle 218 is conveniently attached by means of a bracket 282 to the seat post 280 such that the shorter leg 219 is disposed within a passageway 286 located between the seat 212 and the seat support 210 and the longer leg 221 is allowed to depend freely between the rear forks 288 of the bicycle. In Fig. 11, the shackle 218 is attached to the a convenient location on the frame 240, such as under cross-bar 289, by means of brackets 284. The lock mechanism 224 can be arranged either on the front of the support 210 (Fig. 10) or on the free end 216 of seat post 280 (Fig. 11), neitherarrangement being exclusive to the variation depicted in either Figure. The manner in which locking of the shackle 218 to the seat support-seat post 210,280 arrangement is effected may be achieved using the strategy detailed above with respect to the embodiment illustrated in Fig.9.
In yet another variation shown in Figs. 12 and 13, with like elements being referenced by numerals incremented by 300, a seat 312 (shown in phantom) is attached to and supported by a generally cylindrical housing 310. Housing 310 has a tubular seat post rigidly attached thereto, such as by welding, which extends generally vertically downwardly therefrom. A separable U-shaped shackle 391 of generally circular cross-section is provided having a pair of spaced-apart, parallel legs 392a,392b, each with a free end 393a,393b, respectively. Circular openings 394a,394b are provided within housing 310 which are adapted to receive respective ends 393a,393b 2~7~
of tlle shackle 391. Opening 394a is located generally coaxial with seat post 390 such that leg 392a must l~e inserted longitudinally through seat post 390 in order for its end 393a to be received thereby. A lock mecllanism 324 is operable, for example by means of a key, within the housing 310 to lockingly engage both ends 393a,393b, thereby securing the shackle 391 to the housing 310. As can be seen in Fig. 13, a semi-cylindrical engagement member 395 which is rotatable within housing 310 has a coupling plate 396 having a square hole therein adapted to receive square driving pin 397 of the lock mechanism 324. Actuation of the lock mechanism 324 results in the rotation of driving pin 397, thus causing the semi-cylindrical engagement member 395 to engage a recess 398 provided in each of the ends 393a,393b, thereby locking the shackle 391 to the housing 310. Although the walls 399 of the openings 394a,394b. should provide adequate lateral support for the ends 393a,393b of the shackle 391, an annular collar 400 may be inserted at the end of the seat post 390 to provide additional support.
While there has been described and i]lustrated several embodiments of the invention, it will be understood that various modifications and/or substitutions may be made thereto without departing from the spirit and scope of the invention as - defined in the following claims.
.:
'~,
Claims (24)
1. A lock for a bicycle having a frame with a hole therein adapted to releasably receive a seat post therein, the lock comprising:
a housing adapted to support a bicycle seat;
a first member rigidly connected to said housing, said first member extending generally perpendicularly from said housing and terminating at a free end;
and a rigid shackle having first and second ends, said first end having means thereon for engaging said free end of said first member, said second end having means thereon for engaging and being secured by a lock mechanism in the housing, said first end, when engaged with said free end of said first member, being unengageable therefrom when said second end is secured by the lock mechanism, said first member and said shackle being arrangeable to matingly form the seat post for the bicycle.
a housing adapted to support a bicycle seat;
a first member rigidly connected to said housing, said first member extending generally perpendicularly from said housing and terminating at a free end;
and a rigid shackle having first and second ends, said first end having means thereon for engaging said free end of said first member, said second end having means thereon for engaging and being secured by a lock mechanism in the housing, said first end, when engaged with said free end of said first member, being unengageable therefrom when said second end is secured by the lock mechanism, said first member and said shackle being arrangeable to matingly form the seat post for the bicycle.
2. The bicycle lock as claimed in claim 1, wherein said shackle is substantially L-shaped with a first leg leading to said first end and a second leg leading to said second end, said shackle being nestable with said housing and first member, whereby said second leg is positionable adjacent to and in contact with said first member and said first leg is positionable adjacent to and in contact with said housing.
3. The bicycle lock as claimed in claim 2, further including means for relatively maintaining said shackle in said nested position.
4. The bicycle lock as claimed in claim 3, wherein said means for maintaining said shackle in said nested position comprises a detent disposed on said first leg of said shackle engageable with a corresponding recess provided in said housing.
5. The bicycle lock as claimed in claim 1, wherein at least said housing,said first member, and said shackle are made from hardened steel.
6. The bicycle lock as claimed in claim 1, wherein said housing is made of hardened steel and wherein said first member and said shackle are composites.
7. The bicycle lock as claimed in claim 6, wherein said composite comprises a core of hardened steel having a layer of lighter material conjoined therewith.
8. A lock for a bicycle having a frame with a hole therein adapted to releasably receive a seat post therein, the lock comprising:
a seat support member adapted to support a bicycle seat;
a first member rigidly connected to said seat support member, said first member extending generally perpendicularly from said seat support and terminating at a free end;
a lock mechanism associated with said free end; and a rigid shackle having first and second ends, said first end having means thereon for engaging and being secured by said lock mechanism, said secondend having means thereon for engaging said seat support member, said second end,when engaged with said seat support member, being unengageable therefrom when said first end is secured by the lock mechanism, said first member and said shackle being arrangeable to matingly form the seat post for the bicycle.
a seat support member adapted to support a bicycle seat;
a first member rigidly connected to said seat support member, said first member extending generally perpendicularly from said seat support and terminating at a free end;
a lock mechanism associated with said free end; and a rigid shackle having first and second ends, said first end having means thereon for engaging and being secured by said lock mechanism, said secondend having means thereon for engaging said seat support member, said second end,when engaged with said seat support member, being unengageable therefrom when said first end is secured by the lock mechanism, said first member and said shackle being arrangeable to matingly form the seat post for the bicycle.
9. The bicycle lock as claimed in claim 8, wherein said shackle is substantially L-shaped with a first leg leading to said first end and a second leg leading to said second end, said shackle being nestable with said seat support member and first member, whereby said second leg is positionable adjacent to and in contact with said first member and said first leg is positionable adjacent to and in contact with said seat support member.
10. The bicycle lock as claimed in claim 9, further including means for relatively maintaining said shackle in said nested position.
11. The bicycle lock as claimed in claim 10, wherein said means for maintaining said shackle in said nested position comprises a detent disposed on said first leg of said shackle engageable with a corresponding recess provided in said seat support member.
12. The bicycle lock as claimed in claim 8, wherein at least said seat support member, said first member, and said shackle are made from hardened steel.
13. The bicycle lock as claimed in claim 8, wherein said seat support member is made of hardened steel and wherein said first member and said shackle are composites.
14. The bicycle lock as claimed in claim 13, wherein said composite comprises a core of hardened steel having a layer of lighter material conjoined therewith.
15. A lock for a bicycle having a frame with a hole therein adapted to releasably receive a seat post therein, the lock comprising:
a first member adapted to support a seat;
a second member rigidly connected to said first member in a generally perpendicular relationship therewith;
a lock mechanism associated with either said first or second member;
and separable shackle means capable of being retained in a locked operative position with said first and second members so as to form a closed loop when in a locked position;
said second member forming the seat post for the bicycle.
a first member adapted to support a seat;
a second member rigidly connected to said first member in a generally perpendicular relationship therewith;
a lock mechanism associated with either said first or second member;
and separable shackle means capable of being retained in a locked operative position with said first and second members so as to form a closed loop when in a locked position;
said second member forming the seat post for the bicycle.
16. The bicycle lock as claimed in claim 15, wherein said shackle is L-shaped and substantially rigid.
17. The bicycle lock as claimed in claim 15, further including mounting means provided on said bicycle frame for storing said shackle when not being used to lock said bicycle.
18. The bicycle lock as claimed in claim 15, further including mounting means provided on second member for storing said shackle when not being used to lock said bicycle.
19. The bicycle lock as claimed in claim 15, wherein at least said first member, said second member, and said shackle are made from hardened steel.
20. A lock for a bicycle comprising:
a first member for supporting a bicycle seat;
a second member rigidly connected to said first member, said second member adapted to form a seat post for a bicycle; and separable shackle means lockingly operative between said first and second members for forming a lockable loop when said second member is removed from said bicycle.
a first member for supporting a bicycle seat;
a second member rigidly connected to said first member, said second member adapted to form a seat post for a bicycle; and separable shackle means lockingly operative between said first and second members for forming a lockable loop when said second member is removed from said bicycle.
21. A lock for a bicycle having a frame with a hole therein adapted to releasably receive a seat post therein, the lock comprising:
a housing having a locking mechanism associated therewith, said housing adapted to support a bicycle seat;
tubular seat post means depending downwardly from said housing;
U-shaped shackle means having a pair of parallel legs terminating at free ends;
a pair of spaced-apart openings on said housing each adapted to receive a respective free end of said shackle, each of said free ends having means thereon adapted to be engaged by said lock mechanism for securing said ends within said housing, wherein one of said openings is situated within said seat post such that in order to lockingly engage a free end of one of said legs therein, said one of said legs must be inserted within said tubular seat post.
a housing having a locking mechanism associated therewith, said housing adapted to support a bicycle seat;
tubular seat post means depending downwardly from said housing;
U-shaped shackle means having a pair of parallel legs terminating at free ends;
a pair of spaced-apart openings on said housing each adapted to receive a respective free end of said shackle, each of said free ends having means thereon adapted to be engaged by said lock mechanism for securing said ends within said housing, wherein one of said openings is situated within said seat post such that in order to lockingly engage a free end of one of said legs therein, said one of said legs must be inserted within said tubular seat post.
22. The bicycle lock as claimed in claim 21, further including mounting means provided on said bicycle frame for storing said shackle when not being used to lock said bicycle.
23. The bicycle lock as claimed in claim 21, wherein said lock mechanism comprises a generally semi-cylindrical engagement member rotatable within said housing engageable with recesses provided in said free ends for securing said free ends within said housing.
24. The bicycle lock as claimed in claim 21, wherein at least said housing, said seat post and said shackle are made from hardened steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2074997 CA2074997A1 (en) | 1992-07-30 | 1992-07-30 | Bicycle lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2074997 CA2074997A1 (en) | 1992-07-30 | 1992-07-30 | Bicycle lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2074997A1 true CA2074997A1 (en) | 1994-01-31 |
Family
ID=4150228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2074997 Abandoned CA2074997A1 (en) | 1992-07-30 | 1992-07-30 | Bicycle lock |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2074997A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7898439B2 (en) | 2008-03-20 | 2011-03-01 | Isabelle Bettez | Bicycle rental system and station |
| US11820326B2 (en) | 2020-02-21 | 2023-11-21 | Lyft, Inc. | Vehicle docking stations heartbeat and security |
| US12209437B2 (en) | 2020-12-11 | 2025-01-28 | Lyft, Inc. | Docking station for micromobility transit vehicles |
-
1992
- 1992-07-30 CA CA 2074997 patent/CA2074997A1/en not_active Abandoned
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7898439B2 (en) | 2008-03-20 | 2011-03-01 | Isabelle Bettez | Bicycle rental system and station |
| US9076136B2 (en) | 2008-03-20 | 2015-07-07 | 8D Technologies Inc. | Bicycle rental system and station |
| US11820326B2 (en) | 2020-02-21 | 2023-11-21 | Lyft, Inc. | Vehicle docking stations heartbeat and security |
| US12209437B2 (en) | 2020-12-11 | 2025-01-28 | Lyft, Inc. | Docking station for micromobility transit vehicles |
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| Date | Code | Title | Description |
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| FZDE | Dead |