CA2246701A1 - Bicycle coupling device - Google Patents
Bicycle coupling device Download PDFInfo
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- CA2246701A1 CA2246701A1 CA 2246701 CA2246701A CA2246701A1 CA 2246701 A1 CA2246701 A1 CA 2246701A1 CA 2246701 CA2246701 CA 2246701 CA 2246701 A CA2246701 A CA 2246701A CA 2246701 A1 CA2246701 A1 CA 2246701A1
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- bar
- bicycle
- linking
- segment
- coupling device
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Abstract
A coupling device for coupling an adult bicycle to a child's bicycle. The coupling device includes a linking bar having a generally flattened "S"-shaped configuration such that the front wheel of the child's bicycle is in a spaced relationship relative to the ground surface when the child's bicycle is being towed by the adult's bicycle. The linking bar can be readily attached to both the adult's bicycle and the child's bicycle by respective attachment components. A releasable locking structure is provided for stabilizing the handle bar of the child's bicycle thus allowing a child to grasp onto the a handle bar for stability while being pulled by the adult's bicycle.
Description
Patent a~pli- ~;on of:
Charle Bourbeau for a:
BICYCLE COUPLING DEVIOE
S FIELD OF THE rNVENTION:
The present invention relates to the field of bicycle acce~s~ s and is p~l;~ulall~ COn~ d with a device for coupling a pair of bicycles.
10 BACKGROUND OF THE INVENTION:
With relatively recent trends towards overall well being through fitness, exercise and leisure activities the use of bicycles is b~.-o..- .p i~ popular. Conco ',~, there also exists a trend for families to perform outdoor activities together. Hence, the use of bicycles for farnily oriented rides is beco ~g part 15 of ourcc"lt~...pol~ lifestyle.
For families with young children, the child typically rides in a jump seat or a trailer attached to the bicycle of the parent. As the child grows older, the latter no longer wishes to ride in the jump seat or trailer but rather wishes to i--d~r ' ~l~ ride a child bicycle. During the ~ period that may last for several 20 years, the child has limited physical ,:, ~' ' 5COIllp~ to that of a young adult and thus, the starnina of many adults will generally outhst that of their young children.
Cons~u~ontly, the bicycle ride must be planned within the rap~ ;F~ of the child so as not to exhaust the lattff. The ride must either be kept short or planned with frequent resting periods. FwlL,.lllol~, the ride 25 must be - ~ at the child's pace which may be co"D;de, ~Iy slower then that of an adult This type of situation can be LUDII~t;~8 both to the child p~,;.Dulvd to perform beyond his or her capacity and for the adult who may fell l~,stl - ~ Both the child and the adult will thus be p.~ t~ from enjoying together a ~laliv~ long ride.
Various types of devices have been ,~,.u~sed in the past in an attempt to ~i;..,u.,.~_nl the hc;.~,;nal)o.e mentioned piot' - 1 For example, U.S. Patent 5,067,738 teaches a single wheel trailer for carrying an occupant. The frame of the trailer includes a towbar member and two ~ ~. i~l fork members for retaining the single wheel. A hitch cv....e~,led to a driving bicyde tows the trailer. A pedal assembly coupled to the frame enables the occupant to power the trailer. Although this structure enables the occupant of the trailer to either help power the bicycle or could be towed by the prime mover, it does not 10 allow the occupant of the trailer to ride ' r ~ '~ from the prime mover even for short periods of time.
The prior art also discloses various types of towing bars for coupling two bicycles in a tandem-like cul.rl~uldtion. For example, U.S. Patent 4,261,592 issued April 14, 1981 and naming Jacques Dusseuil as inventor, discloses a coupling device whaein a coupling bar is fixed to each of the two bicycles making up 15 the tandem by an universal joint s~ designed to increase stability of the tandem unit. This type of structure intended to be used with bicycles of S~b~ lly equal height, both ridden by adults, is not suitable for -~ ;ons wherein an adult forms a tandem with a child's bicycle.
Indeed, the col Ii~suldlion of the towbar disclosed in U.S. Patent 4,261,592 is such that the steering wheel of 20 the l~u... Jl~ p ~ -~ bicycle is in contact with the ground surface. I~llplop~ -'i,, of such rear bicycle steering wheel may F ~ create a biasing force that will tend to render the tandem unstable and thuspol '~ u~. Also,thefrontwheelofthel~.. dl~ po~ edbicycleeventhoughuseless and even pvt~ uuj as a steering COlll~.~.lt being in contact with the ground surface creates a frictional and a drag force that increases the load on the Lu.~t~.. dl)l F ~ ~d bicycle ~ t; ~g to pull the l~walJly pvr;~ioned bicycle in when for example a child wishes to rest.
Acco~ , there exists a need for an i...~ .~ bicycle-coupling device s~,c~ ~ ~y intended for coupling an adult bicycle to a child' s bicycle.
SUMMARY OF THE INVEN~ION:
s It is an object of the present ~ to provide an illlpl ~vcd coupling device for bicycles. In acco, ~Qce ~,-vith an c..lbo ' of the present invention there is provided a coupling device for coupling a first bicycle to a second bicycle for enabling the first bicycle riding on ground s~face to pull the second bicycle, the first and second bicycles ,~,~e~ having first and second front wheels, first and second rear wheels, first and 10 second seat posts and first and second head tubes, the coupling device c . i~g a linking bar ha~ing a generally ~lou~ td ~ SUl_ the linking bar defining a bar first longit~l ' ' end and an opposed bar second I ~n" ' ' end; a first ?'-' ' means coupled to the linking bar adjacent the first If ~it~
end for ,~ attaching the linking bar to the first bicycle; a second al l v,c h - .- .I means coupled to the linking bar adjacent the second 1- n~;h- ' ' end for l~ , attaching the linking bar to the second bicycle;
15 the linl~ng bar being configu,~,d and sized such that when the linking bar is attached to the first and second bicycles ~ by the first and second ~1- ' means with the first front and rear wheels co~.l v~ g the ground surface the second rear wheel also contacts at ground surface but the second ~ont wheel is in a spaced ,.,~ h-l~ relative to the ground surface.
20 ~,fc.dbl~, the first S'~tr"hnlf~nt means includes a first bicycle ~1 h -- -lt Co~pol~ ~1 cr rL~u,cd so as to be rn. ;} ' ' - to a segment of the first bicycle and a first bar -' co. ~;~n - ~ f~Ytr - ' ,, from the bar first k~n~- ' ' end, the first bar ~Itr ' cc....l.o.n,.\1 being co.~fi?culcd so as to be pivotally and l~C ~y ' -'' - to the first bicycle a~ l -- h -~ r ~ ~
25 Conveniently, the first bicycle ~t ' COIIIPOII~ includes a clamp configured so as to be releasably clamped around a section of the first bicycle. ~ the clamp includes a pair of jaw members, each of the jaw members defining a generally arcuate segment cunGg.-if~ and sized for enc..cl;l.s at least a section of the first seat post, the arcuate segrnent defining an arcuate segment first p~ ,h~ l edge and an arcuate segment second p~,. ;~)1.~,. ~1 edge; a jaw linking segment ~ g from the arcuate segment first p~ hc. ~1 edge, the linking segments of both the jaw members being adapted to coo~ for linking together the jaw llbel ~, a jaw cQ....P~ g segment ~ " v from the arcuate segment second pe. ;~llel al edge, the S con--~l---g segment of both the jaw members being adapted to coop~ for c~n~ g the first bar rh.. ~~1 c~ to the first bicycle ~tt~ hmpn~ c~
CQ..~ IJ, each of the jaw linking segm~ontQ has a generally flat CO..fl~;W~ ~ n and a linking segment aperture ~ 1~ ,A: ~ lL~,.~Lough whereby the first seat post is adapted to be sandwiched between the arcuate 10 segments of the jaw members and the linlcing segment apertures are adapted to be put ~ ~ s~~ ~ ~ 'l~ in register with each other for receiving the stem section of a linking bolt having a linking bolt head and a cul.~ r - - ' 6 linking nut; the linking bolt head and the linking nut being adapted to squeeze the linking segments towards each other.
15 Fl .,f~,. ~l~, a ss L "J flat c.- e B tongue extends from the bar first lon~t. ~' ' end, the CQ ~ .P~vl ;..g tongue having a tongue aperture ~ ~ 1 .Ai ag th~ lL~uugh; each of the jaw conn~ction segments having a generally flat ~c ~" ~ion and a ~ -: ~, segment aperture C~L- ' ,,1' ~lhr~,ugh whereby the first seat post is adapted to be '~.h,hcl between the arcuate segments and the con~P- I;,~p tongue between the jaw CQ..~f~ ..F. ty~ the c~ - F_,l; ~ig ' a~.lu~es and the tongue aperture being adapted to be put in 20 register with each other so as to allow insertion ofthe stem section of a co.~..Pcl;~g bolt therein, the coll ~e.,~ bolt having a c~ ~ ~ bolt head and a ~ ~ L nut for Q~Ue~7~ the; ~ - B segments against the . - 6 tongue.
Cc,l... ~:~" a p.. ' knob is mounted on the c B bolt head for ' e manual rotation of 25 the co....P~ bolt. P~. f~,.~1~, the device further c~ rises a generally ,u~' - ' ;~1 sleeve c~ .ol~ ; sized so as to be i..~. i ' ' - around the first seat post between the arcuate segments and the first seat post, the sleeve co...l-o~ - 1 being provided with a friction e -h~ nv means formed on at least one of its surfaces for reducing relative movement between the first seat post and the arcuate se~nlontc P~fe~ , the second ~- ' means-include a second bicycle ~1l.~h~ conlpon~.-t~ C~ w~d SO as 5 to be dua.,hdl~le to a segment of the second bicycle and a second bar ptt~ hnl~nt cc"~lponenl c,~tcrld;.lg from the bar second 'cn~~ ' ' end, the second bar - - ' coll~ lt being colL~ d so as to be l ~,l~sdlLJl~ ~ - -L '-1~ to the first bicycle ;,~ l i nl~ I collll)on~ t.
Co..~ " the second bicycle a ~'-- co I ~ - include a gripping co. r for gripping the 10 second head tube and a CC! ~ ~f~ g sleeve mounted on the gripping colllpon~ the co.~..e~ v sleeve defining a CUII~ r ' _ sleeve channel; the second bar ' ~ including a generally ~lonp~ted co~ stem ~ ;..g at an angle from the bar second longihl-lin~l end, the co....f~l;ng stem being col~u.~d and sized so as to be Y~ , fittingly slideable within the sleeve channel.
15 F~.,f~,.~l~, the gripping colll~,on~llt includes a ' ' v plate having a pair of lateral sL~b;l~lg flanges e~ B A~b~ '~ pwr ' ' ~ LU~II, each ~l~ ' g flange having a generally arcuate recesses formed thereon; each .~ " ~ g recess being collG~,u~c;l and sized for fittingly receiving at least a portion of the Cul r ~,nce of the second head tube; the gripping ~ , ~ - further including a generally "U" shaped ' ' v co.. l)o~ mounted on the s ' ' v plate for COOp~,~alulg with 20 the ~1 ' ' L recesses so as to encircle and L ~ engage the second head tube.
COII'~ , the ! ' L'' ' B plate has a pair of ~ ' v apertures ~: - - ' ~v 1' . ~tluùugh and wherein the generally ~~ shaped ' ' e ~ I - includes a generally "U" shaped bolt having threaded end sections and a cu-l. r ' ~ pair of ' ' e nuts, the end sections being adapted to extend through the 25 ' ' ~ g apertures and the ' ' v nuts being adapted to i' - '-1~ engage the threaded end sections.
~crc~ , the device further co...p~;~s a lclea~dL'e tocking means mounted on the col-nr.,~ sleeve for releasably locking the cc.. ~,l;n~ stem within the sleeve channel. Conveniently, the l~,ledsable locking means includes a locking bolt Ill.ca~l~ mounted on the collll~ling sleeve and adapted to Li~,l;ondll~
engage the ccml~lin~ stem when the latter extends through the sleeve channel.
5 Cul~ " the second col-nF~ means further includes a handle bar locking means for l.,leasd~ly locking the handle bar in a p.~ dc1el-llil~d rotational orientation relative to the second head tube, the handle bar locking means being attached to the linking bar.
~Icrc ~1~, the handle bar locking means includes a generally Plr~ ~ and .b. ".~, rigid rod defining a 10 rod first end and a 1~ opposed rod second end; a first rod - ' - means mounted adjacent the rod first end for attaching the rod to the linking bar; a second rod n I r~ h- ~ ~ 1 means for .~,l~s~ly g the rod to the second handle bar.
COll~ , the linking bar has a generally flattened "S" shaped c~ u-..t;on defining a bar first segment 15 ~ into a bar second segment, the bar second segment eA~ ~ g into a bar third segment; whereby when the linking bar is in use, the bar first segment is adapted to extend in a generally ho-i~c,ll~l direction and in an overlying ~ ' ' r relative to the first rear wheel, the bar second segment is adapted to extend ; "~ ..w~dl~ and du.. 11~.. ~ relative to the bar first segment and the bar third segment is adapted to extend in a: b~ - ~ ' direction and in an u~ lJhlg ., ' - ', relative to the 20 second front wheel.
In a preferred . _' ' - t, the bar first segment has a length ~_L "~ in the range of 12", the bar second segment has a length ~b~ in the range of 20" and the bar third segment has a length ~ ' ~ ~ ".~ in the range of 10", the bar first and second se~... ~~t~ defining a first angle lh~,h._~-- having 25 a value sub~ "y in the range of 60~; the bar second and third segment defining a second angle lL~ ,bcl~._.,,l having a value ~bs~ -'~ in the range of 60~.
In accor~nce with the present invention there is provided a coupling device for coupling a first bicycle to a second bicycle for enabling the first bicycle riding on ground surface to pull the second bicycle, the first and second bicycles ~ having first and second front wheels, first and second rear wheels, first and second seat posts and first and second head tubes, the coupling device c~lnp~ g. a linking bar having a 5 generally Pl~-og~ Cvll~ , the linking bar defining a bar first 1c ~ end and an opposed bar second longit~l ' -' end; a first ' means coupled to the linking bar adjacent the first longitll~lin end for ~.,le~d,l~ attaching the linlcing bar to the first bicycle; a second ~tt~ - means coupled to the linking bar adjacent the second l~m~ .=l end for l~ / attaching the linking bar to the second bicycle;
the linking bar being co,Jfi~ l and si~d so that when the first ! '' -~ ' means is attached to the first seat lO post and the second ~ .h..~ ~A means is attached to the second head tube the second front wheel is in a spaced l. ' ---', relative to the ground surface.
Advantages of the present hl~ e.llivn include the fact that the coupling device not only enables the occupant of the bicycle being towed to either help power the tandem or be towed by the prime mover but also enable l5 the occupant of the bicycle being towed to ride ;.~ t .lly from the prime mover. Thus for example a child going on a ride with a parent can first ride ~ d r ' ~ and then as the child becomes tired the bicycles can be coupled in a tandem-like fashion enabling the parent to tow the resting child.
Another ad~ of the present i". . is that when a pair of bicycles are coupled, the front wheel of the 20 bicycle being pulled is in a spaced l~' -- ', relative to the ground surface. This spaced r~ ti-~nchir reduces the frictional and drag forces that would vi' ~.;se create an ~ ' -' load for the pulling rider.
Also, since the front wheel of the bicycle being pulled is in a spaced r~l~ti- - ' , relative to the ground surface this eliminates the risk for the pulled bicycle steering wheel of creating a turning force that would cl~ ~t~ the tandem.
A further a l~,a,l~ of the present invention resides in that the proposed coupling device includes a means for ' ' g the '~ of the bicycle being pulled. The rider being pulled can thus use the for support. A still further advantage of the present invention resides in that the p. upo~d coupling device is spe~fi~ y co~ u ~d for coupling a larger bicycle to a smaller bicycle.
The specific co,~;u alion of the towbar also allows the latter to be con~ , mounted to the frame of 5 the larger bicycle when not in use without obstructing the use of the bicycle or creating an e~th~ic~lly I r~ - effect. Thus, the towing bar may be r ~ , brought along on â ride until a situation arises wherein it becomes desirable for the larger bicycle to pull the smaller bicycle.
Yet another ~lv v of the present invention resides in that the proposed coupling device is ~
10 designed so as to be readily mounted on most conventional bicydes without requiring special tooling or manual dexterity.
Fu lL~,.",~ ;, the plOpO50;l coupling device is rnade of relatively simple . - ' ' COlllpC - co,~. v to conventional forrns of r hlg SO as to provide a coupling device that will be econc -'ly feasible, 15 long lasting and relatively trouble free in op~,.~ion.
BRIEF DESCRIPTION OF THE DRAWINGS:
An ~ ' ofthe present i... will now be ~ il,cA, by way of example, in ~~f.,,~,,ve to the 20 following drawings in which:
Figure 1, in an d~ liolu~l view, " a child's bicycle being towed by an adult's bicycle using a coupling device in âCCold ~ with an c.l~ of the present invention.
25 Figure 2, in a partial clc~tio~al view with sections taken out, illu ~ t~,~ a first ~1 l-.- 1 . - .,1 means part of the coupling device shown in Figure I being attached to a seat post part ofthe parent's bicycle.
Figure 3, in a p~O~e~ view, " ~tes part of the first attr ~ means shown in Figure 2.
Figure 4, in a partial elevational view with sections taken out, illustrates a second ~ CV~ JUn~
part of the coupling device shown in Figure 1, the second ~ttr ~~~- ~ ' .; being shown attached to 5 the steering tube of the child's bicycle.
Figure 5, in a F~ O~lh~e view, illuol~ part of the second a ' .-c -tF - - shown in Figure 4.
Figure 6, in a partial elevational view with sections taken out, illustrates a second i~tt~hmont COIIll)v 10 shown in Figure 4 with the handle ' ' g s~ J mounted thereon.
Figure 7, in an elevational view, " - ~ a linking bar part of the coupling device shown in Figure 1.
Figure 8, in a ~.~ _ view, illuolll.t-,i, a linking bar part of the coupling device shown in Figure I being 15 l. "v-led mounted to the frame of the bicycle prior to being used for pulling a child's bicycle.
DETAILED DESCRIPTION OF THE DRAWINGS:
Referring to Figure 1, there is shown a coupling device 10 in ac~ld -e with an embodiment of the present 20 hl~. The coupling device 10 is shown being used to couple in a i ~ ' ' fashion a first bicycle 12 to a second bicycle 14. The first bicycle 12 is shown pos;tit-nPd fiulllw~lly relative to the second bicycle 14.
TypicaUy, the first and second bicydes 12 and 14 are ~-,o~li~_ly c ~ .. -' adult and child bicycles.
The first and second bicycles 12 and 14 respectively include first and second bicycle frames 16, 18. The first and second bicycle frames 16, 18 respectively include first and second head tubes 20, 22; first and second seat tubes 24, 26; first and second main tubes 28, 30 and first and second transversal tubes 32, 34.
The first and second bicycle frames 16, 18 l~o~Jc~ ly rotatably support first and second front wheels 36, 38 having l~oy~li~_ first and second front axles 40, 42. The first and second bicycle frames 16 and 18 also respectively rotatably support first and second rear wheels 44, 46 having respective first and second rear axles 48, 50.
A pair of first and second seat stays 49, 51 extend ~ dly and d.~ dl~ from an upper segment of their l~ol~e~ first and second seat tubes 24, 26 to the l~ ,é.,~iv~; first and second rear axles 48, 50 on opposite sides of the first and second rear wheels 44, 46. A pair of first and second chain stays 52, 54 extend _b~ .. Jly from a lower segment of the respective first and second seat tubes 24, 26 to the respective first and second rear axles 48, 50 on opposite sides ofthe first and second rear wheels 44, 46.
First and second handle bar axles 53, 55 are ~O~ pivotally mounted inside the first and second head tubes 20, 22. The first and second handle bar axles 53, 55 respectively extend hlle~~ into first and second forked yokes 56, 58. First and second seat posts 60, 62 are telcO~F "y inserted into their eO~Je~iv~; first and second seat tubes 24, 26. A COI l cO~) ' g pair of first and second seats 64, 66 are I c ~pe~ attached to the distal end of the first and second seat posts 60, 62.
First and second drive ll.~ ' 68, 70 typically taking the form of pedals ' "!~ coupled to COIl~o~ 3 chain and o~l~hto - ~ ~ are adapted to drive the ~O~i~_ first and second rear wheels 44, 46. It should be I ' olOod that the first and second bicycle 12 and 14 are h~,.~,;,~.~, d~ d only by a way of example and that the coupling device 10 could be used with other types of bicycles without ~ e~ ~h~g from the scope of the present invention.
The coupling device 10 includes a linking bar 72. The linking bar 72 has a generally c' ~ - ~
COIlfigUldtiOn defining a bar first ln~t~r " ~~ end 74 and an opposed bar second lon~yt~ ' end 76. The coupling device 10 also includes first and second bicycle îtt' ' ' means 78 and 80 for pivotally ~ g CA 0224670l l998-09-24 the linking bar 72 re~l,F~ to the first bicycle 12 and the second bicycle 14. The first and second 1 means 78 and 80 are pall;cul~ly well suited for Cl~O ~ 1 and removal of the second bicycle 14 without the need for manual dexterity or special tooling.
5 Referring now more ~re~ficPIly to Figures 2 and 3, there is shown in greater details the first ~
means 78. The first ~ h, ,~1 means 78 includes the first bicycle a - ' co...ix - 84 co,L~,ul cd so as to be ~tr ' ' ' ~ to a segment of the first bicycle 12. The first ~11;-- l ....- ~1 means 78 also includes a first bar ~t. ' ~ 82 ~ ' g from the bar first lo~t~.l; r o~ end 74. The first bar ;.l l; h. "~ .,l CC.lllp~ 82 is cc,l~u~d so as to be pivotally and l.,leajdbl~ ~ ~ 'F, to the first bicycle -tt~hmF~t CO..I~ - 84.
The first bicycle ~ pOl.F -1 84 pn_f~"dl/l~ includes a clamp colLgul-,d so as to be .~,1~1~
clamped around a section of the first bicycle 12. The clamp pl ~f~,. ~Iy includes a pair of jaw members 86.
Each jaw member 86 defines a generally arcuate segment 90; 5,, ~d and sized for cn~ ' g at least a 15 section ofthe first seat post 60. The arcuate segment defines an arcuate segment first pcfi~ el~1 edge and an opposed arcuate segment second p.,~ lh,.~l edge.
Each jaw member also defines a ja~v '~ segment 88 e ' g from the arcuate segment first pc.ipll~,.al edge. The linking segments 88 of both jaw members 86 are adapted to coo~.ale for linl~ng together the 20 jaw members 86.
Each jaw member 86 further defines a jaw ,~ - 6 segment 92 e. ~ ' lg from the arcuate segment second p. . ' ol edge. The jaw conn~~ segments 92 of both jaw members 86 are adapted to coop~.~1c for securing the first bar ~t--'-- co...l~o-~ A 82 to the first bicycle - - ' co...l-o~l~..1 84.
P~cfc.~l~ each of the jaw linking 3',, - : 88 has a generally flat colLgul~lion and a linking segment aperture e ' 1,, IL~,.clhuugh. In use, the first seat post 60 is adapted to be sandwiched between the arcuate segments 90 of the jaw members 86 and the linking segment apertures are adapted to be put S~ in register with each other for receiving a linking bolt 87. The head of the linking bolt 87 and a co~ or.~ .g washer are adapted to squeeze the linking segrnents 88 towards each other, A ~ul~71~llially flat Cn~ g tongue 98 extends i--lcE~ from the bar first lon~it~ in~l end 78. The ' g tongue 98 has a tongue aperture lO0 eA ~' 3 ~L~e~ ugh Similarly, each of the jaw conl~ g segments 92 has a generally flat coufi~ul~lion and a CQnl~ g segment aperture ~.l. ".1' ~, LLOI ellll ou~L.
l O In use, when the first seat post 60 is ~JallJ.W' ' - i between the arcuate segments 90 of the jaw members 86, the co~ ,l;ng segment aperhlres and the tongue aperture lO0 are all aligned in register with each other so as to allow for insertion of the stern portion of a co ~ ~f~ b bolt 93. The head of the col-~u- l ;.~g bolt 93 and a CC~ o~ e co~ ;~ washer are used for s~ue~ the jaw col. ~ g segrnents 92 towards each other, A 1,l~ ' ~ '-- knob 95 is pl-,fe.~l,~ mounted on the bolt head ofthe cc~ n,,, bolt 93 for r '~ ~ B
manual rotation of the co....~ g bolt 93. The knob 95 ~ll ereldl~ defmes a generally disc shaped collfi~ " having finger receiving recesses formed on its pe.il)h~ l edge.
20 The first ~tr ' means 78 pn,f~.dl~ further includes a generally eyli~ldlical sleeves co..~l~ol- .l 94 sized so as to be .ns~. i ' k between the arcuate segment 90 and the first seat post 60. The sleeve co~ . po~ d 94 is p.~f~,.~l~ provided with a friction ~ ~ means formed on at least one and pl~,f~,.dl~l~/ both of its outer surfaces for ' . ~ ~ its friction so as to reduce the relative lln~ between the seat post 60 and the arcuate segments 90. The sleeves cc,..~po \ ~1 94 is pl~,fe~ provided with a generally p~ k"
25 p~ Jh~ l flange . ~ ~ g ul~e~ull~ from its lower most p~" ',~ ~1 edge.
Referring now more s",~ f ''~ to Figures 4 through 6, there is shown in greater details the second ~tt.~hm~Pnt means 80. The second Ptt."~hmPnt means 80 includes a second bicycle ~tt~chmPnt cu".pollcl~t 104 col~ul~;l and sized so as to be ' ' 1~ to a segment of the second bicycle 14. The second 1",.. ~,t means also includes a second bar ~tt~r~hnl~nt cc)~-pùll~nl 102 PYtPn~iin~. from the second 5 lr ~ end 76.
The second bar ~ h .-~1co~p~ - 102 is cu~ urod so as to be "lc- ~ t~ ~tt~ -~ Ll~ to the second bicycle ~~tt~chn Pnt co.,.l~. 1 104. The second bicycle ~1~~~ ..1 co...l~n ..1 includes a gripping co ~?~~ 1 for gripping the second head tube 22 and a c - - 3 sleeve 120 mounted on the gripping 10 COIllpol1~ The co~ ,I;.. g sleeve 120 defines a cc,ll~-r. - J' B sleeve channel 122.
The second bar ~ - ~ 102 includes a generally ~c ~ 6 stem 124 c,. ' B at an angle from the bar second k n~tlll" -' end 76. The colll~ g stem 124 is cu-.Lgulcd and sized so as to be sl b. ~, fittingly slideable within the sleeve channel 122.
The gripping: , I".,f~,.~l~ includes a ' ' ~ plate 106 having a pair of lateral ~ flanges 112~ p~ Iyll,c,~ Ulll. Each ~ flange112hasagenerallyarcuate ~ ~ 6 recess 114 formed thereon. Each ~ recess 114 is ~ 5,, ~d and sized so as to fittingly receive at least a portion of the c... r ~,nce of the second head tube 22.
The gripping c _ ~ - further incl'udes a generally "~ shaped 1~ ~ ' 3 ~ - ~ " ' ~, mounted on the ' ' 6 plate 106 for coup~ with the sl;~ G recesses 114 so as to encircle and r,i~ y engage the second head tube 22. In a preferred ~ ' of the ~ . the ' ' ,, plate has a pair of ~;' " 6 apertures 110 ~: " 6 Ih~.~ ILuu~d The generally"~'-shaped ' ' e C~---r-- includes at least one and l,~,~ly two "~'-shaped bolts 116 having threaded end sections and a cc",~ , set of st~ i7~n~ nuts 118. The end sections of the "U"-shaped bolts 116 are adapted to extend through the ,1. ~.;1i,; .~ apertures 110 and the s~ g~ nuts 118 are adapted to be threadaly mounted on the threaded end sections so that the "U"-shaped bolts 116 can be used for c.~ g the head tube 22 against the ~ g recesses 114.
The configuration of both the cC~l~n~ stem 124 and the s',eeve channel 122 are such that the mere action of ~a~it~liOl~l forces prevents the ~,c.. f~ .g stem 124 from being inad~_.t~lltly retracted from the sleeve channel 122. However, in order to further secure the cc~ g stem 123 within the sleeve channel 122 a r~le a '~ le locking means is pl~f~,l~l~ provided. The l~ '' - locking means not only further secures the co~ r ,1; ~8 stem 124 within the sleeve channel 122 but also prevents the connr~l; g stem 124 from vibrating 10 or UIL~ .;~ moving within the channel 122.
The second bicycle ~ cc,...~ 104 thus pr. f~,l~l~ further includes a l.~ 'le locking means mounted on the coni-F~ g sleeve 120 for n 1~ locking the cc - - B stem 124 within the sleeve channel 122. The l~,l~'~'e locking means pl~,f, Idbl~ takes the fonn of a locking bolt 130 e.l.~.r..l;.,g 15 throug'n a wall of the ~ 6 sleeve 120 so as to r. ;~ engage the exterior surface of the co~ 8 stem 124 when the latter is inserted within the sleeve channel 122.
The second . - - E. means 80 pl~,f.,l~,l~ also includes a handle bar locking means for locking said second handle bar 55 in a pl~t~ -~ I.t -' ~~ ,;l, relative to said second head tube 22. The handle 20 bar locking means is adapted to be attached both to the linking bar 72 and to the second handle bar 55.
The hand bar locking means includes a generally f1o.~l!;. a d and Jb. "~, rigid rod 126 defining a rod first end and a I ~ opposed rod second end. A first rod --- ' means 128 for t~tt' ' ' B the rod 126 to the linking bar 72 is mounted adjacent the rod first lo~i~u~ end. A second rod ~tte ~hmfnt means 142 for attaching the rod 126 to the second handle bar 55 is mounted adjacent the rod second 25 lon~ lin~l end.
One of the main ~,Lal~leri~Lics of the present invention, as illustrated in Figure 7, resides in the specific configuration and size ofthe linking bar 72. Indeed, since the device 10 is adapted to be used l)lerel~ly although not ~ to attach the bicycle of a child to the bicycle of an adult, the linking bar 72 is ~lerel~ly given a specific geo...~hy adapted to at least partially cu,.,~ c-~e for the frame and wheel height Jirrel~,.lces. Ful lhclll.ol e, the linking bar 72 is given a specific gCOll.~tly such that the front wheel 38 of the second bicyde 14 wiD be in a spaced rel~ ', relative to the ground surface 32 when the second bicycle 14 is being towed by the first bicycle 12.
The linking bar 72 pl~,f~ has a generaDy flattened "S" shaped colLgul~lion defining a first bar segment 134e~ " g intoasecondbarsegment 136inturn,~ into a thirdbarsegment 138. Thefirstbar segment 134 is adapted to extend in a generaDy holi~ulltal direction and in an overlying l~lat: ', relative to the rear wheel 44 of the first bicycle 12 when the device is in use. The first bar segment 134 ~lerel~l~
bends hlte~ into the second bar segment 136. The second bar segment 136 is adapted to extend .y lea. ~aldly and do ....~. aldl~ relative to the first bar segment 134 when the device 10 is in use.
The second bar segment 136, in turn, ~l~,f~ly bends ~e,, ~ "~ into the third bar segrnent 138. The third bar segment 138 is adapted to extend in a ~b;~ t;~ , h~ direction and in an overlying r~n -i-- ' .
relative to the forked tubes 58 of the front wheel 38 of the second bicycle 14 when the device is in use.
The length of the first bar segment 134 is such that it extends beyond the rear wheel 44 of the first wheel 12.
Similarly, the length of the third bar segment 138 is such that is extends beyond the distal end of the forked tubes 58. The length and the direction ofthe second bar segment 136 are such that the front wheel 38 will be in a spaced r~' - - ', relative to the ground surface 132. As ...- ~;. n~d pl~ ~, this feature is particularly hll~l i since it prevents the creation of frictional and drag forces enhance, r~ ; -. s puDing 25 of the second bicycle 14 by the first bicycle 12.
As illu~ ted mo~e "x r ~ in Figure 8, the specific configuration of the linking bar 72 also aUows the latter to be mounted on the first bicycle 12 when it is not used for pulling the second bicycle 14. The linking bar 72 can thus be carried to a location where it will be used for pulling the bicycle 14 without being CUUII~ ~ull.e or illlel rel ing with the movement of the rider of the first bicycle 12 . Indeed, its specific 5 co.~ ion suh~; d; 1~ col-.,;.t,onds to that of the frame 16 of the first bicycle 12. The first bar segment 134 extends generally in the direction of the main tube 28 while the second bar segment 136 extends s~b~ in the direction of the seat stays 49. A set of straps 140 is adapted to be used for releasably securing the linking bar 72 to the first bicycle 12.
Charle Bourbeau for a:
BICYCLE COUPLING DEVIOE
S FIELD OF THE rNVENTION:
The present invention relates to the field of bicycle acce~s~ s and is p~l;~ulall~ COn~ d with a device for coupling a pair of bicycles.
10 BACKGROUND OF THE INVENTION:
With relatively recent trends towards overall well being through fitness, exercise and leisure activities the use of bicycles is b~.-o..- .p i~ popular. Conco ',~, there also exists a trend for families to perform outdoor activities together. Hence, the use of bicycles for farnily oriented rides is beco ~g part 15 of ourcc"lt~...pol~ lifestyle.
For families with young children, the child typically rides in a jump seat or a trailer attached to the bicycle of the parent. As the child grows older, the latter no longer wishes to ride in the jump seat or trailer but rather wishes to i--d~r ' ~l~ ride a child bicycle. During the ~ period that may last for several 20 years, the child has limited physical ,:, ~' ' 5COIllp~ to that of a young adult and thus, the starnina of many adults will generally outhst that of their young children.
Cons~u~ontly, the bicycle ride must be planned within the rap~ ;F~ of the child so as not to exhaust the lattff. The ride must either be kept short or planned with frequent resting periods. FwlL,.lllol~, the ride 25 must be - ~ at the child's pace which may be co"D;de, ~Iy slower then that of an adult This type of situation can be LUDII~t;~8 both to the child p~,;.Dulvd to perform beyond his or her capacity and for the adult who may fell l~,stl - ~ Both the child and the adult will thus be p.~ t~ from enjoying together a ~laliv~ long ride.
Various types of devices have been ,~,.u~sed in the past in an attempt to ~i;..,u.,.~_nl the hc;.~,;nal)o.e mentioned piot' - 1 For example, U.S. Patent 5,067,738 teaches a single wheel trailer for carrying an occupant. The frame of the trailer includes a towbar member and two ~ ~. i~l fork members for retaining the single wheel. A hitch cv....e~,led to a driving bicyde tows the trailer. A pedal assembly coupled to the frame enables the occupant to power the trailer. Although this structure enables the occupant of the trailer to either help power the bicycle or could be towed by the prime mover, it does not 10 allow the occupant of the trailer to ride ' r ~ '~ from the prime mover even for short periods of time.
The prior art also discloses various types of towing bars for coupling two bicycles in a tandem-like cul.rl~uldtion. For example, U.S. Patent 4,261,592 issued April 14, 1981 and naming Jacques Dusseuil as inventor, discloses a coupling device whaein a coupling bar is fixed to each of the two bicycles making up 15 the tandem by an universal joint s~ designed to increase stability of the tandem unit. This type of structure intended to be used with bicycles of S~b~ lly equal height, both ridden by adults, is not suitable for -~ ;ons wherein an adult forms a tandem with a child's bicycle.
Indeed, the col Ii~suldlion of the towbar disclosed in U.S. Patent 4,261,592 is such that the steering wheel of 20 the l~u... Jl~ p ~ -~ bicycle is in contact with the ground surface. I~llplop~ -'i,, of such rear bicycle steering wheel may F ~ create a biasing force that will tend to render the tandem unstable and thuspol '~ u~. Also,thefrontwheelofthel~.. dl~ po~ edbicycleeventhoughuseless and even pvt~ uuj as a steering COlll~.~.lt being in contact with the ground surface creates a frictional and a drag force that increases the load on the Lu.~t~.. dl)l F ~ ~d bicycle ~ t; ~g to pull the l~walJly pvr;~ioned bicycle in when for example a child wishes to rest.
Acco~ , there exists a need for an i...~ .~ bicycle-coupling device s~,c~ ~ ~y intended for coupling an adult bicycle to a child' s bicycle.
SUMMARY OF THE INVEN~ION:
s It is an object of the present ~ to provide an illlpl ~vcd coupling device for bicycles. In acco, ~Qce ~,-vith an c..lbo ' of the present invention there is provided a coupling device for coupling a first bicycle to a second bicycle for enabling the first bicycle riding on ground s~face to pull the second bicycle, the first and second bicycles ,~,~e~ having first and second front wheels, first and second rear wheels, first and 10 second seat posts and first and second head tubes, the coupling device c . i~g a linking bar ha~ing a generally ~lou~ td ~ SUl_ the linking bar defining a bar first longit~l ' ' end and an opposed bar second I ~n" ' ' end; a first ?'-' ' means coupled to the linking bar adjacent the first If ~it~
end for ,~ attaching the linking bar to the first bicycle; a second al l v,c h - .- .I means coupled to the linking bar adjacent the second 1- n~;h- ' ' end for l~ , attaching the linking bar to the second bicycle;
15 the linl~ng bar being configu,~,d and sized such that when the linking bar is attached to the first and second bicycles ~ by the first and second ~1- ' means with the first front and rear wheels co~.l v~ g the ground surface the second rear wheel also contacts at ground surface but the second ~ont wheel is in a spaced ,.,~ h-l~ relative to the ground surface.
20 ~,fc.dbl~, the first S'~tr"hnlf~nt means includes a first bicycle ~1 h -- -lt Co~pol~ ~1 cr rL~u,cd so as to be rn. ;} ' ' - to a segment of the first bicycle and a first bar -' co. ~;~n - ~ f~Ytr - ' ,, from the bar first k~n~- ' ' end, the first bar ~Itr ' cc....l.o.n,.\1 being co.~fi?culcd so as to be pivotally and l~C ~y ' -'' - to the first bicycle a~ l -- h -~ r ~ ~
25 Conveniently, the first bicycle ~t ' COIIIPOII~ includes a clamp configured so as to be releasably clamped around a section of the first bicycle. ~ the clamp includes a pair of jaw members, each of the jaw members defining a generally arcuate segment cunGg.-if~ and sized for enc..cl;l.s at least a section of the first seat post, the arcuate segrnent defining an arcuate segment first p~ ,h~ l edge and an arcuate segment second p~,. ;~)1.~,. ~1 edge; a jaw linking segment ~ g from the arcuate segment first p~ hc. ~1 edge, the linking segments of both the jaw members being adapted to coo~ for linking together the jaw llbel ~, a jaw cQ....P~ g segment ~ " v from the arcuate segment second pe. ;~llel al edge, the S con--~l---g segment of both the jaw members being adapted to coop~ for c~n~ g the first bar rh.. ~~1 c~ to the first bicycle ~tt~ hmpn~ c~
CQ..~ IJ, each of the jaw linking segm~ontQ has a generally flat CO..fl~;W~ ~ n and a linking segment aperture ~ 1~ ,A: ~ lL~,.~Lough whereby the first seat post is adapted to be sandwiched between the arcuate 10 segments of the jaw members and the linlcing segment apertures are adapted to be put ~ ~ s~~ ~ ~ 'l~ in register with each other for receiving the stem section of a linking bolt having a linking bolt head and a cul.~ r - - ' 6 linking nut; the linking bolt head and the linking nut being adapted to squeeze the linking segments towards each other.
15 Fl .,f~,. ~l~, a ss L "J flat c.- e B tongue extends from the bar first lon~t. ~' ' end, the CQ ~ .P~vl ;..g tongue having a tongue aperture ~ ~ 1 .Ai ag th~ lL~uugh; each of the jaw conn~ction segments having a generally flat ~c ~" ~ion and a ~ -: ~, segment aperture C~L- ' ,,1' ~lhr~,ugh whereby the first seat post is adapted to be '~.h,hcl between the arcuate segments and the con~P- I;,~p tongue between the jaw CQ..~f~ ..F. ty~ the c~ - F_,l; ~ig ' a~.lu~es and the tongue aperture being adapted to be put in 20 register with each other so as to allow insertion ofthe stem section of a co.~..Pcl;~g bolt therein, the coll ~e.,~ bolt having a c~ ~ ~ bolt head and a ~ ~ L nut for Q~Ue~7~ the; ~ - B segments against the . - 6 tongue.
Cc,l... ~:~" a p.. ' knob is mounted on the c B bolt head for ' e manual rotation of 25 the co....P~ bolt. P~. f~,.~1~, the device further c~ rises a generally ,u~' - ' ;~1 sleeve c~ .ol~ ; sized so as to be i..~. i ' ' - around the first seat post between the arcuate segments and the first seat post, the sleeve co...l-o~ - 1 being provided with a friction e -h~ nv means formed on at least one of its surfaces for reducing relative movement between the first seat post and the arcuate se~nlontc P~fe~ , the second ~- ' means-include a second bicycle ~1l.~h~ conlpon~.-t~ C~ w~d SO as 5 to be dua.,hdl~le to a segment of the second bicycle and a second bar ptt~ hnl~nt cc"~lponenl c,~tcrld;.lg from the bar second 'cn~~ ' ' end, the second bar - - ' coll~ lt being colL~ d so as to be l ~,l~sdlLJl~ ~ - -L '-1~ to the first bicycle ;,~ l i nl~ I collll)on~ t.
Co..~ " the second bicycle a ~'-- co I ~ - include a gripping co. r for gripping the 10 second head tube and a CC! ~ ~f~ g sleeve mounted on the gripping colllpon~ the co.~..e~ v sleeve defining a CUII~ r ' _ sleeve channel; the second bar ' ~ including a generally ~lonp~ted co~ stem ~ ;..g at an angle from the bar second longihl-lin~l end, the co....f~l;ng stem being col~u.~d and sized so as to be Y~ , fittingly slideable within the sleeve channel.
15 F~.,f~,.~l~, the gripping colll~,on~llt includes a ' ' v plate having a pair of lateral sL~b;l~lg flanges e~ B A~b~ '~ pwr ' ' ~ LU~II, each ~l~ ' g flange having a generally arcuate recesses formed thereon; each .~ " ~ g recess being collG~,u~c;l and sized for fittingly receiving at least a portion of the Cul r ~,nce of the second head tube; the gripping ~ , ~ - further including a generally "U" shaped ' ' v co.. l)o~ mounted on the s ' ' v plate for COOp~,~alulg with 20 the ~1 ' ' L recesses so as to encircle and L ~ engage the second head tube.
COII'~ , the ! ' L'' ' B plate has a pair of ~ ' v apertures ~: - - ' ~v 1' . ~tluùugh and wherein the generally ~~ shaped ' ' e ~ I - includes a generally "U" shaped bolt having threaded end sections and a cu-l. r ' ~ pair of ' ' e nuts, the end sections being adapted to extend through the 25 ' ' ~ g apertures and the ' ' v nuts being adapted to i' - '-1~ engage the threaded end sections.
~crc~ , the device further co...p~;~s a lclea~dL'e tocking means mounted on the col-nr.,~ sleeve for releasably locking the cc.. ~,l;n~ stem within the sleeve channel. Conveniently, the l~,ledsable locking means includes a locking bolt Ill.ca~l~ mounted on the collll~ling sleeve and adapted to Li~,l;ondll~
engage the ccml~lin~ stem when the latter extends through the sleeve channel.
5 Cul~ " the second col-nF~ means further includes a handle bar locking means for l.,leasd~ly locking the handle bar in a p.~ dc1el-llil~d rotational orientation relative to the second head tube, the handle bar locking means being attached to the linking bar.
~Icrc ~1~, the handle bar locking means includes a generally Plr~ ~ and .b. ".~, rigid rod defining a 10 rod first end and a 1~ opposed rod second end; a first rod - ' - means mounted adjacent the rod first end for attaching the rod to the linking bar; a second rod n I r~ h- ~ ~ 1 means for .~,l~s~ly g the rod to the second handle bar.
COll~ , the linking bar has a generally flattened "S" shaped c~ u-..t;on defining a bar first segment 15 ~ into a bar second segment, the bar second segment eA~ ~ g into a bar third segment; whereby when the linking bar is in use, the bar first segment is adapted to extend in a generally ho-i~c,ll~l direction and in an overlying ~ ' ' r relative to the first rear wheel, the bar second segment is adapted to extend ; "~ ..w~dl~ and du.. 11~.. ~ relative to the bar first segment and the bar third segment is adapted to extend in a: b~ - ~ ' direction and in an u~ lJhlg ., ' - ', relative to the 20 second front wheel.
In a preferred . _' ' - t, the bar first segment has a length ~_L "~ in the range of 12", the bar second segment has a length ~b~ in the range of 20" and the bar third segment has a length ~ ' ~ ~ ".~ in the range of 10", the bar first and second se~... ~~t~ defining a first angle lh~,h._~-- having 25 a value sub~ "y in the range of 60~; the bar second and third segment defining a second angle lL~ ,bcl~._.,,l having a value ~bs~ -'~ in the range of 60~.
In accor~nce with the present invention there is provided a coupling device for coupling a first bicycle to a second bicycle for enabling the first bicycle riding on ground surface to pull the second bicycle, the first and second bicycles ~ having first and second front wheels, first and second rear wheels, first and second seat posts and first and second head tubes, the coupling device c~lnp~ g. a linking bar having a 5 generally Pl~-og~ Cvll~ , the linking bar defining a bar first 1c ~ end and an opposed bar second longit~l ' -' end; a first ' means coupled to the linking bar adjacent the first longitll~lin end for ~.,le~d,l~ attaching the linlcing bar to the first bicycle; a second ~tt~ - means coupled to the linking bar adjacent the second l~m~ .=l end for l~ / attaching the linking bar to the second bicycle;
the linking bar being co,Jfi~ l and si~d so that when the first ! '' -~ ' means is attached to the first seat lO post and the second ~ .h..~ ~A means is attached to the second head tube the second front wheel is in a spaced l. ' ---', relative to the ground surface.
Advantages of the present hl~ e.llivn include the fact that the coupling device not only enables the occupant of the bicycle being towed to either help power the tandem or be towed by the prime mover but also enable l5 the occupant of the bicycle being towed to ride ;.~ t .lly from the prime mover. Thus for example a child going on a ride with a parent can first ride ~ d r ' ~ and then as the child becomes tired the bicycles can be coupled in a tandem-like fashion enabling the parent to tow the resting child.
Another ad~ of the present i". . is that when a pair of bicycles are coupled, the front wheel of the 20 bicycle being pulled is in a spaced l~' -- ', relative to the ground surface. This spaced r~ ti-~nchir reduces the frictional and drag forces that would vi' ~.;se create an ~ ' -' load for the pulling rider.
Also, since the front wheel of the bicycle being pulled is in a spaced r~l~ti- - ' , relative to the ground surface this eliminates the risk for the pulled bicycle steering wheel of creating a turning force that would cl~ ~t~ the tandem.
A further a l~,a,l~ of the present invention resides in that the proposed coupling device includes a means for ' ' g the '~ of the bicycle being pulled. The rider being pulled can thus use the for support. A still further advantage of the present invention resides in that the p. upo~d coupling device is spe~fi~ y co~ u ~d for coupling a larger bicycle to a smaller bicycle.
The specific co,~;u alion of the towbar also allows the latter to be con~ , mounted to the frame of 5 the larger bicycle when not in use without obstructing the use of the bicycle or creating an e~th~ic~lly I r~ - effect. Thus, the towing bar may be r ~ , brought along on â ride until a situation arises wherein it becomes desirable for the larger bicycle to pull the smaller bicycle.
Yet another ~lv v of the present invention resides in that the proposed coupling device is ~
10 designed so as to be readily mounted on most conventional bicydes without requiring special tooling or manual dexterity.
Fu lL~,.",~ ;, the plOpO50;l coupling device is rnade of relatively simple . - ' ' COlllpC - co,~. v to conventional forrns of r hlg SO as to provide a coupling device that will be econc -'ly feasible, 15 long lasting and relatively trouble free in op~,.~ion.
BRIEF DESCRIPTION OF THE DRAWINGS:
An ~ ' ofthe present i... will now be ~ il,cA, by way of example, in ~~f.,,~,,ve to the 20 following drawings in which:
Figure 1, in an d~ liolu~l view, " a child's bicycle being towed by an adult's bicycle using a coupling device in âCCold ~ with an c.l~ of the present invention.
25 Figure 2, in a partial clc~tio~al view with sections taken out, illu ~ t~,~ a first ~1 l-.- 1 . - .,1 means part of the coupling device shown in Figure I being attached to a seat post part ofthe parent's bicycle.
Figure 3, in a p~O~e~ view, " ~tes part of the first attr ~ means shown in Figure 2.
Figure 4, in a partial elevational view with sections taken out, illustrates a second ~ CV~ JUn~
part of the coupling device shown in Figure 1, the second ~ttr ~~~- ~ ' .; being shown attached to 5 the steering tube of the child's bicycle.
Figure 5, in a F~ O~lh~e view, illuol~ part of the second a ' .-c -tF - - shown in Figure 4.
Figure 6, in a partial elevational view with sections taken out, illustrates a second i~tt~hmont COIIll)v 10 shown in Figure 4 with the handle ' ' g s~ J mounted thereon.
Figure 7, in an elevational view, " - ~ a linking bar part of the coupling device shown in Figure 1.
Figure 8, in a ~.~ _ view, illuolll.t-,i, a linking bar part of the coupling device shown in Figure I being 15 l. "v-led mounted to the frame of the bicycle prior to being used for pulling a child's bicycle.
DETAILED DESCRIPTION OF THE DRAWINGS:
Referring to Figure 1, there is shown a coupling device 10 in ac~ld -e with an embodiment of the present 20 hl~. The coupling device 10 is shown being used to couple in a i ~ ' ' fashion a first bicycle 12 to a second bicycle 14. The first bicycle 12 is shown pos;tit-nPd fiulllw~lly relative to the second bicycle 14.
TypicaUy, the first and second bicydes 12 and 14 are ~-,o~li~_ly c ~ .. -' adult and child bicycles.
The first and second bicycles 12 and 14 respectively include first and second bicycle frames 16, 18. The first and second bicycle frames 16, 18 respectively include first and second head tubes 20, 22; first and second seat tubes 24, 26; first and second main tubes 28, 30 and first and second transversal tubes 32, 34.
The first and second bicycle frames 16, 18 l~o~Jc~ ly rotatably support first and second front wheels 36, 38 having l~oy~li~_ first and second front axles 40, 42. The first and second bicycle frames 16 and 18 also respectively rotatably support first and second rear wheels 44, 46 having respective first and second rear axles 48, 50.
A pair of first and second seat stays 49, 51 extend ~ dly and d.~ dl~ from an upper segment of their l~ol~e~ first and second seat tubes 24, 26 to the l~ ,é.,~iv~; first and second rear axles 48, 50 on opposite sides of the first and second rear wheels 44, 46. A pair of first and second chain stays 52, 54 extend _b~ .. Jly from a lower segment of the respective first and second seat tubes 24, 26 to the respective first and second rear axles 48, 50 on opposite sides ofthe first and second rear wheels 44, 46.
First and second handle bar axles 53, 55 are ~O~ pivotally mounted inside the first and second head tubes 20, 22. The first and second handle bar axles 53, 55 respectively extend hlle~~ into first and second forked yokes 56, 58. First and second seat posts 60, 62 are telcO~F "y inserted into their eO~Je~iv~; first and second seat tubes 24, 26. A COI l cO~) ' g pair of first and second seats 64, 66 are I c ~pe~ attached to the distal end of the first and second seat posts 60, 62.
First and second drive ll.~ ' 68, 70 typically taking the form of pedals ' "!~ coupled to COIl~o~ 3 chain and o~l~hto - ~ ~ are adapted to drive the ~O~i~_ first and second rear wheels 44, 46. It should be I ' olOod that the first and second bicycle 12 and 14 are h~,.~,;,~.~, d~ d only by a way of example and that the coupling device 10 could be used with other types of bicycles without ~ e~ ~h~g from the scope of the present invention.
The coupling device 10 includes a linking bar 72. The linking bar 72 has a generally c' ~ - ~
COIlfigUldtiOn defining a bar first ln~t~r " ~~ end 74 and an opposed bar second lon~yt~ ' end 76. The coupling device 10 also includes first and second bicycle îtt' ' ' means 78 and 80 for pivotally ~ g CA 0224670l l998-09-24 the linking bar 72 re~l,F~ to the first bicycle 12 and the second bicycle 14. The first and second 1 means 78 and 80 are pall;cul~ly well suited for Cl~O ~ 1 and removal of the second bicycle 14 without the need for manual dexterity or special tooling.
5 Referring now more ~re~ficPIly to Figures 2 and 3, there is shown in greater details the first ~
means 78. The first ~ h, ,~1 means 78 includes the first bicycle a - ' co...ix - 84 co,L~,ul cd so as to be ~tr ' ' ' ~ to a segment of the first bicycle 12. The first ~11;-- l ....- ~1 means 78 also includes a first bar ~t. ' ~ 82 ~ ' g from the bar first lo~t~.l; r o~ end 74. The first bar ;.l l; h. "~ .,l CC.lllp~ 82 is cc,l~u~d so as to be pivotally and l.,leajdbl~ ~ ~ 'F, to the first bicycle -tt~hmF~t CO..I~ - 84.
The first bicycle ~ pOl.F -1 84 pn_f~"dl/l~ includes a clamp colLgul-,d so as to be .~,1~1~
clamped around a section of the first bicycle 12. The clamp pl ~f~,. ~Iy includes a pair of jaw members 86.
Each jaw member 86 defines a generally arcuate segment 90; 5,, ~d and sized for cn~ ' g at least a 15 section ofthe first seat post 60. The arcuate segment defines an arcuate segment first pcfi~ el~1 edge and an opposed arcuate segment second p.,~ lh,.~l edge.
Each jaw member also defines a ja~v '~ segment 88 e ' g from the arcuate segment first pc.ipll~,.al edge. The linking segments 88 of both jaw members 86 are adapted to coo~.ale for linl~ng together the 20 jaw members 86.
Each jaw member 86 further defines a jaw ,~ - 6 segment 92 e. ~ ' lg from the arcuate segment second p. . ' ol edge. The jaw conn~~ segments 92 of both jaw members 86 are adapted to coop~.~1c for securing the first bar ~t--'-- co...l~o-~ A 82 to the first bicycle - - ' co...l-o~l~..1 84.
P~cfc.~l~ each of the jaw linking 3',, - : 88 has a generally flat colLgul~lion and a linking segment aperture e ' 1,, IL~,.clhuugh. In use, the first seat post 60 is adapted to be sandwiched between the arcuate segments 90 of the jaw members 86 and the linking segment apertures are adapted to be put S~ in register with each other for receiving a linking bolt 87. The head of the linking bolt 87 and a co~ or.~ .g washer are adapted to squeeze the linking segrnents 88 towards each other, A ~ul~71~llially flat Cn~ g tongue 98 extends i--lcE~ from the bar first lon~it~ in~l end 78. The ' g tongue 98 has a tongue aperture lO0 eA ~' 3 ~L~e~ ugh Similarly, each of the jaw conl~ g segments 92 has a generally flat coufi~ul~lion and a CQnl~ g segment aperture ~.l. ".1' ~, LLOI ellll ou~L.
l O In use, when the first seat post 60 is ~JallJ.W' ' - i between the arcuate segments 90 of the jaw members 86, the co~ ,l;ng segment aperhlres and the tongue aperture lO0 are all aligned in register with each other so as to allow for insertion of the stern portion of a co ~ ~f~ b bolt 93. The head of the col-~u- l ;.~g bolt 93 and a CC~ o~ e co~ ;~ washer are used for s~ue~ the jaw col. ~ g segrnents 92 towards each other, A 1,l~ ' ~ '-- knob 95 is pl-,fe.~l,~ mounted on the bolt head ofthe cc~ n,,, bolt 93 for r '~ ~ B
manual rotation of the co....~ g bolt 93. The knob 95 ~ll ereldl~ defmes a generally disc shaped collfi~ " having finger receiving recesses formed on its pe.il)h~ l edge.
20 The first ~tr ' means 78 pn,f~.dl~ further includes a generally eyli~ldlical sleeves co..~l~ol- .l 94 sized so as to be .ns~. i ' k between the arcuate segment 90 and the first seat post 60. The sleeve co~ . po~ d 94 is p.~f~,.~l~ provided with a friction ~ ~ means formed on at least one and pl~,f~,.dl~l~/ both of its outer surfaces for ' . ~ ~ its friction so as to reduce the relative lln~ between the seat post 60 and the arcuate segments 90. The sleeves cc,..~po \ ~1 94 is pl~,fe~ provided with a generally p~ k"
25 p~ Jh~ l flange . ~ ~ g ul~e~ull~ from its lower most p~" ',~ ~1 edge.
Referring now more s",~ f ''~ to Figures 4 through 6, there is shown in greater details the second ~tt.~hm~Pnt means 80. The second Ptt."~hmPnt means 80 includes a second bicycle ~tt~chmPnt cu".pollcl~t 104 col~ul~;l and sized so as to be ' ' 1~ to a segment of the second bicycle 14. The second 1",.. ~,t means also includes a second bar ~tt~r~hnl~nt cc)~-pùll~nl 102 PYtPn~iin~. from the second 5 lr ~ end 76.
The second bar ~ h .-~1co~p~ - 102 is cu~ urod so as to be "lc- ~ t~ ~tt~ -~ Ll~ to the second bicycle ~~tt~chn Pnt co.,.l~. 1 104. The second bicycle ~1~~~ ..1 co...l~n ..1 includes a gripping co ~?~~ 1 for gripping the second head tube 22 and a c - - 3 sleeve 120 mounted on the gripping 10 COIllpol1~ The co~ ,I;.. g sleeve 120 defines a cc,ll~-r. - J' B sleeve channel 122.
The second bar ~ - ~ 102 includes a generally ~c ~ 6 stem 124 c,. ' B at an angle from the bar second k n~tlll" -' end 76. The colll~ g stem 124 is cu-.Lgulcd and sized so as to be sl b. ~, fittingly slideable within the sleeve channel 122.
The gripping: , I".,f~,.~l~ includes a ' ' ~ plate 106 having a pair of lateral ~ flanges 112~ p~ Iyll,c,~ Ulll. Each ~ flange112hasagenerallyarcuate ~ ~ 6 recess 114 formed thereon. Each ~ recess 114 is ~ 5,, ~d and sized so as to fittingly receive at least a portion of the c... r ~,nce of the second head tube 22.
The gripping c _ ~ - further incl'udes a generally "~ shaped 1~ ~ ' 3 ~ - ~ " ' ~, mounted on the ' ' 6 plate 106 for coup~ with the sl;~ G recesses 114 so as to encircle and r,i~ y engage the second head tube 22. In a preferred ~ ' of the ~ . the ' ' ,, plate has a pair of ~;' " 6 apertures 110 ~: " 6 Ih~.~ ILuu~d The generally"~'-shaped ' ' e C~---r-- includes at least one and l,~,~ly two "~'-shaped bolts 116 having threaded end sections and a cc",~ , set of st~ i7~n~ nuts 118. The end sections of the "U"-shaped bolts 116 are adapted to extend through the ,1. ~.;1i,; .~ apertures 110 and the s~ g~ nuts 118 are adapted to be threadaly mounted on the threaded end sections so that the "U"-shaped bolts 116 can be used for c.~ g the head tube 22 against the ~ g recesses 114.
The configuration of both the cC~l~n~ stem 124 and the s',eeve channel 122 are such that the mere action of ~a~it~liOl~l forces prevents the ~,c.. f~ .g stem 124 from being inad~_.t~lltly retracted from the sleeve channel 122. However, in order to further secure the cc~ g stem 123 within the sleeve channel 122 a r~le a '~ le locking means is pl~f~,l~l~ provided. The l~ '' - locking means not only further secures the co~ r ,1; ~8 stem 124 within the sleeve channel 122 but also prevents the connr~l; g stem 124 from vibrating 10 or UIL~ .;~ moving within the channel 122.
The second bicycle ~ cc,...~ 104 thus pr. f~,l~l~ further includes a l.~ 'le locking means mounted on the coni-F~ g sleeve 120 for n 1~ locking the cc - - B stem 124 within the sleeve channel 122. The l~,l~'~'e locking means pl~,f, Idbl~ takes the fonn of a locking bolt 130 e.l.~.r..l;.,g 15 throug'n a wall of the ~ 6 sleeve 120 so as to r. ;~ engage the exterior surface of the co~ 8 stem 124 when the latter is inserted within the sleeve channel 122.
The second . - - E. means 80 pl~,f.,l~,l~ also includes a handle bar locking means for locking said second handle bar 55 in a pl~t~ -~ I.t -' ~~ ,;l, relative to said second head tube 22. The handle 20 bar locking means is adapted to be attached both to the linking bar 72 and to the second handle bar 55.
The hand bar locking means includes a generally f1o.~l!;. a d and Jb. "~, rigid rod 126 defining a rod first end and a I ~ opposed rod second end. A first rod --- ' means 128 for t~tt' ' ' B the rod 126 to the linking bar 72 is mounted adjacent the rod first lo~i~u~ end. A second rod ~tte ~hmfnt means 142 for attaching the rod 126 to the second handle bar 55 is mounted adjacent the rod second 25 lon~ lin~l end.
One of the main ~,Lal~leri~Lics of the present invention, as illustrated in Figure 7, resides in the specific configuration and size ofthe linking bar 72. Indeed, since the device 10 is adapted to be used l)lerel~ly although not ~ to attach the bicycle of a child to the bicycle of an adult, the linking bar 72 is ~lerel~ly given a specific geo...~hy adapted to at least partially cu,.,~ c-~e for the frame and wheel height Jirrel~,.lces. Ful lhclll.ol e, the linking bar 72 is given a specific gCOll.~tly such that the front wheel 38 of the second bicyde 14 wiD be in a spaced rel~ ', relative to the ground surface 32 when the second bicycle 14 is being towed by the first bicycle 12.
The linking bar 72 pl~,f~ has a generaDy flattened "S" shaped colLgul~lion defining a first bar segment 134e~ " g intoasecondbarsegment 136inturn,~ into a thirdbarsegment 138. Thefirstbar segment 134 is adapted to extend in a generaDy holi~ulltal direction and in an overlying l~lat: ', relative to the rear wheel 44 of the first bicycle 12 when the device is in use. The first bar segment 134 ~lerel~l~
bends hlte~ into the second bar segment 136. The second bar segment 136 is adapted to extend .y lea. ~aldly and do ....~. aldl~ relative to the first bar segment 134 when the device 10 is in use.
The second bar segment 136, in turn, ~l~,f~ly bends ~e,, ~ "~ into the third bar segrnent 138. The third bar segment 138 is adapted to extend in a ~b;~ t;~ , h~ direction and in an overlying r~n -i-- ' .
relative to the forked tubes 58 of the front wheel 38 of the second bicycle 14 when the device is in use.
The length of the first bar segment 134 is such that it extends beyond the rear wheel 44 of the first wheel 12.
Similarly, the length of the third bar segment 138 is such that is extends beyond the distal end of the forked tubes 58. The length and the direction ofthe second bar segment 136 are such that the front wheel 38 will be in a spaced r~' - - ', relative to the ground surface 132. As ...- ~;. n~d pl~ ~, this feature is particularly hll~l i since it prevents the creation of frictional and drag forces enhance, r~ ; -. s puDing 25 of the second bicycle 14 by the first bicycle 12.
As illu~ ted mo~e "x r ~ in Figure 8, the specific configuration of the linking bar 72 also aUows the latter to be mounted on the first bicycle 12 when it is not used for pulling the second bicycle 14. The linking bar 72 can thus be carried to a location where it will be used for pulling the bicycle 14 without being CUUII~ ~ull.e or illlel rel ing with the movement of the rider of the first bicycle 12 . Indeed, its specific 5 co.~ ion suh~; d; 1~ col-.,;.t,onds to that of the frame 16 of the first bicycle 12. The first bar segment 134 extends generally in the direction of the main tube 28 while the second bar segment 136 extends s~b~ in the direction of the seat stays 49. A set of straps 140 is adapted to be used for releasably securing the linking bar 72 to the first bicycle 12.
Claims (19)
1. A coupling device for coupling a first bicycle to a second bicycle for enabling said first bicycle riding on ground surface to pull said second bicycle, said first and second bicycles respectively having first and second front wheels, first and second rear wheels, first and second seat posts, first and second handlebars and first and second head tubes, said coupling device comprising:
- a linking bar having a generally elongated configuration, said linking bar defining a bar first longitudinal end and an opposed bar second longitudinal end;
- a first attachment means coupled to said linking bar adjacent said first longitudinal end for releasably attaching said linking bar to said first bicycle;
- a second attachment means coupled to said linking bar adjacent said second longitudinal end for releasably attaching said linking bar to said second bicycle;
- said linking bar being configured and sized such that when said linking bar is attached to said first and second bicycles respectively by said first and second attachment means with said first front and rear wheels contacting said ground surface said second rear wheel also contacts at ground surface but said second front wheel is in a spaced relationship relative to said ground surface.
- a linking bar having a generally elongated configuration, said linking bar defining a bar first longitudinal end and an opposed bar second longitudinal end;
- a first attachment means coupled to said linking bar adjacent said first longitudinal end for releasably attaching said linking bar to said first bicycle;
- a second attachment means coupled to said linking bar adjacent said second longitudinal end for releasably attaching said linking bar to said second bicycle;
- said linking bar being configured and sized such that when said linking bar is attached to said first and second bicycles respectively by said first and second attachment means with said first front and rear wheels contacting said ground surface said second rear wheel also contacts at ground surface but said second front wheel is in a spaced relationship relative to said ground surface.
2. A coupling device as recited in claim 1 wherein said first attachment means includes a first bicycle attachment component configured so as to be attachable to a segment of said first bicycle and a first bar attachment component extending from said bar first longitudinal end, said first bar attachment component being configured so as to be pivotally and releasably to said first bicycle attachment component.
3. A coupling device as recited in claim 2 wherein said first bicycle attachment component includes a clamp configured so as to be releasably clamped around a section of said first bicycle.
4. A coupling device as recited in claim 3 wherein said clamp includes a pair of jaw members, each of said jaw members defining:
- a generally arcuate segment configured and sized for encircling at least a section of said first seat post, said arcuate segment defining an arcuate segment first peripheral edge and an arcuate segment second peripheral edge;
- a jaw linking segment extending from said arcuate segment first peripheral edge, the linking segments of both said jaw members being adapted to cooperate for linking together said jaw members;
- a jaw connecting segment extending from said arcuate segment second peripheral edge, the connecting segment of both said jaw members being adapted to cooperate for connecting said first bar attachment component to said first bicycle attachment component.
- a generally arcuate segment configured and sized for encircling at least a section of said first seat post, said arcuate segment defining an arcuate segment first peripheral edge and an arcuate segment second peripheral edge;
- a jaw linking segment extending from said arcuate segment first peripheral edge, the linking segments of both said jaw members being adapted to cooperate for linking together said jaw members;
- a jaw connecting segment extending from said arcuate segment second peripheral edge, the connecting segment of both said jaw members being adapted to cooperate for connecting said first bar attachment component to said first bicycle attachment component.
5. A coupling device as recited in claim 4 wherein each of said jaw linking segments has a generally fiat configuration and a linking segment aperture extending therethrough whereby said first seat post is adapted to be sandwiched between said arcuate segments of said jaw members and said linking segment apertures are adapted to be put substantially in register with each other for receiving the stem section of a linking bolt having a linking bolt head and a corresponding linking nut; said linking bolt head and said linking nut being adapted to squeeze said linking segments towards each other.
6. A coupling device as recited in claim 4 wherein a substantially flat connecting tongue extends from said bar first longitudinal end, said connecting tongue having a tongue aperture extending therethrough;
- each of said jaw connection segments having a generally flat configuration and a connecting segment aperture extending therethrough whereby said first seat post is adapted to be sandwiched between said arcuate segments and said connecting tongue between said jaw connecting segments; said connecting segments apertures and said tongue aperture being adapted to be put in register with each other so as to allow insertion of the stem section of a connecting bolt therein, said connecting bolt having a connecting bolt head and a connecting nut for squeezing said connecting segments against said connecting tongue.
- each of said jaw connection segments having a generally flat configuration and a connecting segment aperture extending therethrough whereby said first seat post is adapted to be sandwiched between said arcuate segments and said connecting tongue between said jaw connecting segments; said connecting segments apertures and said tongue aperture being adapted to be put in register with each other so as to allow insertion of the stem section of a connecting bolt therein, said connecting bolt having a connecting bolt head and a connecting nut for squeezing said connecting segments against said connecting tongue.
7. A coupling device as recited in claim 6 wherein a prehension knob is mounted on said connecting bolt head for facilitating manual rotation of said connecting bolt.
8. A coupling device as recited in claim 4 further comprising a generally cylindrical sleeve components sized so as to be insertable around said first seat post between said arcuate segments and said first seat post, said sleeve component being provided with a friction enhancing means formed on at least one of its surfaces for reducing relative movement between said first seat post and said arcuate segments.
9. A coupling device as recited in claim 1 wherein said second attachment means include a second bicycle attachment components configured so as to be attachable to a segment of said second bicycle and a second bar attachment component extending from said bar second longitudinal end, said second bar attachment component being configured so as to be releasably attachable to said first bicycle attachment component.
10. A coupling device as recited in claim 9 wherein:
- said second bicycle attachment component include a gripping component for gripping said second head tube and a connecting sleeve mounted on said gripping component, said connecting sleeve defining a corresponding sleeve channel;
- said second bar attachment component including a generally elongated connecting stem extending at an angle from said bar second longitudinal end, said connecting stem being configured and sized so as to be substantially fittingly slideable within said sleeve channel.
- said second bicycle attachment component include a gripping component for gripping said second head tube and a connecting sleeve mounted on said gripping component, said connecting sleeve defining a corresponding sleeve channel;
- said second bar attachment component including a generally elongated connecting stem extending at an angle from said bar second longitudinal end, said connecting stem being configured and sized so as to be substantially fittingly slideable within said sleeve channel.
11. A coupling device as recited in claim 10 wherein said gripping component includes a stabilizing plate having a pair of lateral stabilizing flanges extending substantially perpendicularly therefrom, each stabilizing flange having a generally arcuate stabilizing recesses formed thereon;
- each stabilizing recess being configured and sized for fittingly receiving at least a portion of the circumference of said second head tube;
- said gripping component further including a generally "U" shaped stabilizing component releasably mounted on said stabilizing plate for cooperating with said stabilizing recesses so as to encircle and frictionally engage said second head tube.
- each stabilizing recess being configured and sized for fittingly receiving at least a portion of the circumference of said second head tube;
- said gripping component further including a generally "U" shaped stabilizing component releasably mounted on said stabilizing plate for cooperating with said stabilizing recesses so as to encircle and frictionally engage said second head tube.
12. A coupling device as recited in claim 11 wherein said stabilizing plate has a pair of stabilizing apertures extending therethrough and wherein said generally "U" shaped stabilizing component includes a generally "U" shaped bolt having threaded end sections and a corresponding pair of stabilizing nuts, said end sections being adapted to extend through said stabilizing apertures and said stabilizing nuts being adapted to threadaly engage said threaded end sections.
13. A coupling device as recited in claim 9 further comprising a releasable locking means mounted on said connecting sleeve for releasably locking said connecting stem within said sleeve channel.
14. A coupling device as recited in claim 13 wherein said releasable locking means includes a locking bolt threadaly mounted on said connecting sleeve and adapted to frictionally engage said connecting stem when the latter extends through said sleeve channel.
15. A coupling device as recited in claim 1 wherein said second connecting means further includes a handle bar locking means for releasably locking said handle bar in a predetermined rotational orientation relative to said second head tube, said handle bar locking means being attached to said linking bar.
16. A coupling device as recited in claim 15 wherein said handle bar locking means includes a generally elongated and substantially rigid rod defining a rod first end and a longitudinally opposed rod second end;
- a first rod attachment means mounted adjacent said rod first end for attaching said rod to said linking bar;
- a second rod attachment means for releasably attaching said rod to said second handle bar.
- a first rod attachment means mounted adjacent said rod first end for attaching said rod to said linking bar;
- a second rod attachment means for releasably attaching said rod to said second handle bar.
17. A coupling device as recited in claim 1 wherein said linking bar has a generally flattened "S" shaped configuration defining a bar first segment extending into a bar second segment, said bar second segment extending into a bar third segment;
- whereby when said linking bar is in use, said bar first segment is adapted to extend in a generally horizontal direction and in an overlying relationship relative to said first rear wheel, said bar second segment is adapted to extend substantially rearwardly and downwardly relative to said bar first segment and said bar third segment is adapted to extend in a substantially horizontal direction and in an overlying relationship relative to said second front wheel.
- whereby when said linking bar is in use, said bar first segment is adapted to extend in a generally horizontal direction and in an overlying relationship relative to said first rear wheel, said bar second segment is adapted to extend substantially rearwardly and downwardly relative to said bar first segment and said bar third segment is adapted to extend in a substantially horizontal direction and in an overlying relationship relative to said second front wheel.
18. A coupling device as recited in claim 17 wherein said bar first segment has a length substantially in the range of 12", said bar second segment has a length substantially in the range of 20" and said bar third segment has a length substantially in the range of 10", said bar first and second segments defining a first angle therebetween having a value substantially in the range of 60°; said bar second and third segment defining a second angle therebetween having a value substantially in the range of 60°.
19. A coupling device for coupling a first bicycle to a second bicycle for enabling said first bicycle riding on ground surface to pull said second bicycle, said first and second bicycles respectively having first and second front wheels, first and second rear wheels, first and second seat posts and first and second head tubes, said coupling device comprising:
- a linking bar having a generally configuration, said linking bar defining a bar first longitudinal end and an opposed bar second longitudinal end;
- a first attachment means coupled to said linking bar adjacent said first longitudinal end for releasably attaching said linking bar to said first bicycle;
- a second attachment means coupled to said linking bar adjacent said second longitudinal end for releasably attaching said linking bar to said second bicycle;
- said linking bar being configured and sized so that when said first attachment means is attached to said first seat post and said second attachment means is attached to said second head tube said second front wheel is in a spaced relationship relative to said ground surface.
- a linking bar having a generally configuration, said linking bar defining a bar first longitudinal end and an opposed bar second longitudinal end;
- a first attachment means coupled to said linking bar adjacent said first longitudinal end for releasably attaching said linking bar to said first bicycle;
- a second attachment means coupled to said linking bar adjacent said second longitudinal end for releasably attaching said linking bar to said second bicycle;
- said linking bar being configured and sized so that when said first attachment means is attached to said first seat post and said second attachment means is attached to said second head tube said second front wheel is in a spaced relationship relative to said ground surface.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US5996997P | 1997-09-25 | 1997-09-25 | |
| US60/059,969 | 1997-09-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2246701A1 true CA2246701A1 (en) | 1999-03-25 |
Family
ID=22026487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2246701 Abandoned CA2246701A1 (en) | 1997-09-25 | 1998-09-24 | Bicycle coupling device |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2246701A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITPD20120245A1 (en) * | 2012-08-10 | 2014-02-11 | Federico Kuschlan | CYCLE INCLUDING A TOWING DEVICE AND METHOD OF TOWING A CYCLE |
-
1998
- 1998-09-24 CA CA 2246701 patent/CA2246701A1/en not_active Abandoned
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITPD20120245A1 (en) * | 2012-08-10 | 2014-02-11 | Federico Kuschlan | CYCLE INCLUDING A TOWING DEVICE AND METHOD OF TOWING A CYCLE |
| WO2014024169A1 (en) * | 2012-08-10 | 2014-02-13 | Federico Kuschlan | Cycle comprising a hand towing device and method of hand towing of a cycle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |