CN87207545U - Reciprocating bicycle - Google Patents

Abstract

The utility model preserved majority components of traditional bicycles. A transmission system is that a left and a right transmission cranks are connected with a left and a right feet pedal cranks as integration with a certain angle, the rear shaft is fixed with duplex fly wheels, and a reverse wheel is arranged in a casing of the fly wheels. A transmission steel cable (or a chain-*[-25]*[25]-steel wire assembly) is winded among the transmission cranks, the duplex fly reels and the reverse wheel. The pedal can reciprocating move in order to make the duplex fly reels continuously work, the transmission cranks can be made into a slider-crank mechanism, with allocating with a speed regulating and controlling system, a stepless gear reciprocating bicycle can be formed. The utility model is easy to be changed into a deformation bicycle such as manual type reciprocating bicycle, the wearing components of the utility model is few, so riders can reasonably strain without fatigue.

Description

Reciprocating bicycle

The utility model belongs to the reciprocating type bicycle designs of conveying arrangement.

Popular standard bicycle and nearest disclosed number of patent application is at present: 85106803 " chair-typed bicycle driven by both hands and feet ".Application number is that 85100419 " chair bicycle ", application number are: 85102418 new bicycles such as " Foldable fravelling bicycles ", its driving system is chain-driving.The chain-drive shortcoming is a chain, and sprocket wheel is all easy to wear, lubricated inconvenience and pollution vehicle body, the bottom of s trouser leg etc.; Pedal the power dead point for two about pedal exists in widely different circling, the person's of riding the power of pedaling can not play one's part to the full near the dead point, so the fatigue of being easy to.

The utility model drives the duplex flywheel with double crank, to replace chain-driving, reduces consumable accessory, improves and pedals force efficiency, transforms a little and realizes stepless change, also can change manual bicycle into.

Overall structure (see figure 1) of the present utility model is used the basic structure and the standardized component of present standard bicycle, as handlebar, front fork, vehicle frame, front-wheel, trailing wheel, saddle, pedal, flashing board, braking mechanism etc., and with the duplex flywheel---reverse wheel mechanism 1, crank (or crank---slide block) mechanism 2, selector gear 3 in addition, form the reciprocating type bicycle of reciprocating type bicycle or stepless change.

Its basic structure and principle of work are as follows: (see figure 2)

Left foot is pedaled the left end that crank 4 is fixed in special axis, and (front and back up and down that this specification sheets is alleged all are as the criterion with bicycle) Left Drive crank 5 is fixed in the right side of axis; Right driving crank 6 kinks that combine as a whole with the right pedal crank are at the right-hand member of axis.Left foot is pedaled the arbitrary angle that has between crank axis and Left Drive crank axis in 60～90 ° of scopes, between right pedal crank axis and right driving crank axis identical with it angle is arranged.The handing-over of Left Drive crank 5 upper ends has left lever 7, and the handing-over of right driving crank 6 upper ends has right pull bar 8.Duplex flywheel (in left flywheel 10 is arranged, right flywheel 11) is installed in the right-hand member of hind axle, on the flywheel cover of dust base plate 13 reverse wheel 12 is housed.One steel rope 9 is from right pull bar 8, on right flywheel 11 anticlockwise direction around one to a few (and at half place around the number of turns, steel rope and flywheel outer ring are fixed) after, walk around reverse wheel 12 again, again on left flywheel 10 clockwise direction around one to a few, after (also steel rope and flywheel outer ring being fixed), link to each other with left lever 7 at half place around the number of turns.Should be able to make left and right driving crank 5,6 when reciprocating intermediate point during in the end affixed steel rope, be in state perpendicular to the ground simultaneously.When depressing a certain pedal, the driving crank that connects firmly with it rotates, and by pull bar and steel rope, will make a certain flywheel forward rotation, thus the drive wheels rotation.Meanwhile, same steel rope will drive another flywheel counter-rotating and another pedal is risen.Two pedals pump, and left and right two flywheels are alternately worked, and order about wheel and advance.

Owing between pedal crank axis and driving crank axis 60 °～90 ° angle is arranged, and be in state perpendicular to the ground during the intermediate point that driving crank back and forth moves, just both can give full play to rider's the power of pedaling, and can make driving crank be in the best effort scope again.

Driving crank is made the crank that has the speed governing slide block---slide block mechanism, be equipped with the speed governing maneuvering system, then can make reciprocating type bicycle become the reciprocal bicycle of stepless change.

" duplex flywheel---reverse wheel mechanism " of the present utility model example is as follows.(see figure 3): ratchet holder 17 is tightened on the rear-wheel hub 16, in two grooves on the ratchet holder spring 22 and ratchet 23 is housed, and there is the ratchet of equal number on the interior edge of left flywheel 10 and right flywheel 11.The outer respectively has two annular grooves, have three very near through holes (ginseng Fig. 3 C-C analyses and observe) between two annular grooves, some steel balls 18 are arranged between ratchet holder and right flywheel, the side that two flywheels are adjacent has rolling groove, some steel balls also are housed to reduce wear, the outside of left side flywheel 10 be equipped with a whole set of pad 19 at last with limit lid 20 by some steel balls with duplex flywheel location, finish and assemble.

Reverse wheel 12 is outer an annular groove, in axis hole is arranged.Be installed on the flywheel cover of dust base plate 13 by axle 15.Cover of dust can be divided into back cover of dust 21, and preceding cover of dust 24 stops dirt sand and rainwater.

Hole before steel rope 9 passes on the cover of dust 24 enters inner groove at three apertures (seeing that Fig. 3 C-C analyses and observe) that the outer groove anticlockwise direction of right flywheel 11 passes on the flywheel successively behind a circle, anticlockwise direction is behind a circle again, walk around reverse wheel 12 again clockwise direction at the inside groove of left flywheel 10 behind a circle, also pass three through holes between two annular grooves in turn and enter outer groove, the hole on the cover of dust 24 links to each other with left lever before the outer groove clockwise direction passes behind a circle again.

Steel wire passes the purpose of three apertures repeatedly, is steel rope can be fixed on flywheel in self-locking, does not need other device for fastening.

Flywheel---reverse wheel mechanism, the flywheel that also can be two sprocket form links, reverse wheel is in the place ahead of duplex flywheel, cooperate with the sprocket-type flywheel with two sections chains, one end of chain links to each other with pull bar, other end connection steel rope is walked around reverse wheel and is linked to each other with another chain, so also can make duplex flywheel exchange work.

Can also adopt two chain type duplex flywheels, and replace reverse wheel with two extension springs.Cooperate with the chain type flywheel after one end of chain links to each other with pull bar, be connected in the extension spring.Depress chain drive flywheel transmission when riding, and spring is elongated.Loosen pedal, spring and make the counter-rotating of chain type flywheel, and make pedal rise two flywheel exchange work like this.

Letter position ground handing-over pull bar promptly becomes non-variable speed bicycle on the driving crank.If driving crank is made crank---slide block mechanism then can become variable speed bicycle.

The embodiment of crank---slide block mechanism following (Fig. 4) Left Drive crank 5 is fastenedly connected by tightening pin 35 and axis 25, and the right driving crank 6 of making one with the right pedal crank passes through steel ball 26 kinks on axis 25.The crank of left and right driving crank---Slipper is identical, only narrates the structure of one of them below.Crank is a rectangular steel pipe, and the rear side of steel pipe begins from the upper end along axis to be shaped on the opening of 3～4mm toward near base portion, speed governing slide block 30 to be installed and to make the slippage up and down of speed governing slide block.There is headkerchief 29 on the crank top, with sealing crank end face opening.Headkerchief is fixed with long spiro nail 28 left and right directions.The preceding side lower part of crank has aperture near the axis place, so that steel rope Hose Jacket 32 to be installed, with aperture upper edge equal-height position long spiro nail 27 is housed on left and right directions, the shape of the wedge lock piece 31 speed governing slide blocks 30 close with above-mentioned crank rear openings length is equipped with like T shape (seeing that B-B analyses and observe) in the front side of crank with screw, head section ratio crank intracavity section is smaller, the top has webge slot, cooperates with wedge lock piece 31.The speed governing slider head is drilled with two through holes from the top down, and it is crossing to open one of two screws and two through hole from the side.The afterbody of speed governing slide block has the hole with the pull bar handing-over.Pull bar 7(8) jaw joins with connecting pin.

Speed change steel wire 33 enters the crank inner chamber through steel rope Hose Jacket 32, walks around long spiro nail 27, and penetrating from bottom to top has on the speed governing slide block in the through hole that screw communicates, and fastening with screw.Another speed change steel wire 34 enters the crank inner chamber through steel rope Hose Jacket 32, also walks around long spiro nail 27, pass the through hole that no screw communicates on the speed governing slide block after, walk around long spiro nail 28 again, penetrate the through hole that screw communicates from the top down, also tighten up with screw.

When pulling speed change steel wire 33, speed change slide block 30 glides, and the flywheel pivot angle reduces, wheel decelerates.During pulling speed change steel wire 34, move the flywheel pivot angle on the speed governing slide block and increase the wheel speedup.

Wedge lock piece 31 cooperate with the speed governing slide block 30 that webge slot is arranged can make in speed change steel wire 33.34 the advancing when speed change not stressed hardly.Speed governing slide block and speed change steel wire are convenient to clean vehicle body all at the crank inner chamber, and vehicle body is attractive in appearance and keep the cleaning of moving parts.

If back and forth bicycle does not need speed governing, then crank structure is greatly simplified, and only needs an ellipse garden capital end that one aperture and pull bar handing-over are arranged.

Match with crank speed change slide block mechanism, on handlebar, be equipped with selector gear (see figure 5) selector gear by: handle 36, lever pin 37, sheave 44, fluted roller shaft 39, support 40, clamping plate 41, speed change steel rope 33.34 etc. are formed.Handle 36 usefulness lever pins 37 are installed on the pin plate 38, and on sheave 44, sheave can be on fluted roller shaft 39 just with two screw retention for pin plate, despining, and fluted roller shaft is fixed on the support 40, and support and clamping plate cooperate, and entire mechanism are installed in the control comfort place of handlebar.Speed change steel rope flexible pipe 42 also is contained on the support by nut 43.

Sheave 44 is that two groove sheave (see figure 6)s, two bottom lands respectively are drilled with the aperture that can insert two speed change steel ropes, respectively is shaped on the screw that communicates with it on the vertical direction of two apertures.

Article two, one of speed change steel rope 33 be terminated on the speed governing slide block of left and right sides driving crank, the other end is drawn from Hose Jacket, be around in the groove of sheave, and aperture at the bottom of the common insertion grooves of head of two ropes, and tighten up with screw.An end of two speed change steel ropes 34 also has been connected on the speed governing slide block of left and right sides driving crank in addition, the other end is drawn from flexible pipe, be around in another groove of sheave 44 with the direction opposite with speed change steel rope 33, two fag ends also insert in the aperture of this bottom land, and fastening with screw.

When with hand turning handle 36, can make 33,34 two tensions of speed change steel rope simultaneously, two are loosened, the speed change to handle speed governing slide block slippage.

Certainly the mode of manipulating wire rope degree of tightness also has other forms.

The utility model has the advantages that: 1. vulnerable part is few; 2. can give full play to people's the power of pedaling, indefatigability; 3. preserved the parts of most of standard bicycle, very easily retrofited, quality also easily guarantees; 4. very easily make the changeable bicycles such as hand into.

Claims (6)

1, a kind of reciprocating type bicycle that has handlebar, front fork, vehicle frame, front-wheel, trailing wheel, pedal, saddle, braking mechanism etc. to constitute is characterized in that transmission device is by the left and right driving crank that becomes 60 °～90 ° of angles with left and right sides pedal crank that is connected on the axis; Be fixed in duplex flywheel (being included in left and right flywheel) and the compositions such as attaching parts between them on the front-wheel hub.

2, by the described reciprocating type bicycle of claim 1, the outer that it is characterized in that duplex flywheel (comprising left and right sides flywheel) respectively has two annular grooves, have three very near through holes between two annular grooves, a reverse wheel is loaded on the flywheel cover of dust base plate, and left and right sides pull bar links on the driving crank of the left and right sides; Steel rope is worn around left and right pull bar, between duplex flywheel and the reverse wheel, steel rope on left and right flywheel around on the contrary, and on left and right flywheel outer ring, attachment point is arranged.

3, by the described reciprocating type bicycle of claim 1, it is characterized in that there is sprocket duplex flywheel outer; The two-opening type chain cooperates with the sprocket of duplex flywheel respectively, and one end and crank are hinged, and the other end links to each other with spring on being contained in vehicle frame.

4, by the described reciprocating type bicycle of claim 1, it is characterized in that the speed governing slide block is all arranged on the left and right driving crank.Left and right pull bar is hinged on the speed governing slide block, and the speed governing slide block is handled by the speed handwheel that is installed on the handlebar.

5, by the described reciprocating type bicycle of claim 4, it is characterized in that the speed governing slide block has webge slot, is equipped with the wedge lock plate in the driving crank.

6,, it is characterized in that steel wire tow line being fixed as on the duplex flywheel wear around self-locking type by the described reciprocating type bicycle of claim 2.

Images