CN2254869Y - Power-saving and plan-saddle type bicycle - Google Patents

Abstract

The utility model relates to a power-saving flat-seat type bicycle which is used for improving a transmission part and a bicycle seat of a bicycle. The rotary type bicycle pedaling of the traditional bicycle is changed into 60 DEG reciprocating bicycle pedaling. A transmission structure of the power-saving flat-seat type bicycle is provided with two force increasing transmission devices which are identical. Each force increasing transmission device is composed of a pedaling plate, a pedaling rod, pin shaft, a force application rod, a force application support, a turning chain wheel, a dragging chain, a rocking force arm, etc. The force application chain wheel on the force application rod is driven by the pedaling rod through the pin shaft. The rocking force arm is driven by the force application chain gear through the dragging chain. A large chain wheel is driven to move by the rocking force arm through a ratchet pawl. The force increasing transmission devices make a force ratio increased to more than four times of the traditional bicycle, and the speed of the power-saving flat-seat type bicycle is enhanced 50 percent.

Description

A kind of laborsaving flat seat formula bicycle

The utility model belongs to a kind of labour-saving bicycle, particularly relates to the running part and the vehicle seat of bicycle.

The present bicycle that uses, include front and back wheel, vehicle frame, drive mechanism, handlebar and vehicle seat, drive mechanism is that pedal drive floral disc is made circular movement, owing to be subjected to the influence of locus, can't add large pedal length, ride and require great effort, because pedal moves in a circle, the angle that every pin can be exerted oneself is all less than 150 °, and kinematic velocity is difficult to improve, and has the dead point to produce (angle that can't exert oneself) simultaneously, the present bicycle that uses, its vehicle seat all is leg-of-mutton, crotch portion in whole body weight all concentrates in the time of by bike, and the time is grown slightly and makes this position very uncomfortable.

The purpose of this utility model is to address the above problem, and provides a kind of laborsaving, and speed is fast, ride the seat comfortable, the laborsaving flat seat formula bicycle of no dead center position.

The utility model includes front and back wheel, handlebar, vehicle frame (drive mechanism case), drive mechanism, compositions such as flatcar seat.Drive mechanism has the identical force-amplifying transmission device of two covers, and every cover force-amplifying transmission device is by stretcher 1, pedal rod 2, and bearing pin 3, boosting-rod 4, afterburning sprocket wheel 5,6 supports turning to sprocket wheel 7,8,9,10,11.The swing arm of force 12, track adjusting wheel 14 drags chain 16, ratchet 17, arm of force bearing 18, spring 19, and the shared direct orbit 13 of two covers, inboard, two sides be all with 60 tooth hinge wheels 15 of ratchet, main driving axle 20, swing to sprocket wheel 21, swing to chain 22, main gear chain 23, case (replacement vehicle frame) 25 is formed.Pedal rod 2 connects boosting-rod 4 by bearing pin 3, bearing pin 3 hinge joints are on vehicle frame (case) 25, afterburning sprocket wheel 5,6 and support turn to sprocket wheel 7,8,9,10,11 are installed in respectively on boosting-rod 4 and the vehicle frame (case) 25, an end that drags chain 16 is installed on the boosting-rod 4, the other end is installed on the swing arm of force 12, and drag chain 16 and be stuck in afterburning sprocket wheel 5,6 and support turn to sprocket wheel 7,8,9,10, on 11, pedal rod 2 is done 60 ° of motions and drives the swing arm of force 12 to do 120 ° of motions, the swing arm of force 12 is sleeved on the main driving axle 20 by arm of force bearing 18, cooperate with the ratchet of hinge wheel 15 by being positioned at its ratchet of not holding 17, on the swing arm of force 12, be equipped with spring 19, the other end of spring 19, be connected on the vehicle frame (case) 25, on vehicle frame (case) 25, be equipped with and swing to sprocket wheel 21, swing to block on the sprocket wheel 21 and swing to chain 22, the two ends of swinging to chain 22 are installed in respectively on the boosting-rod 4 of two cover force-amplifying transmission devices.

Accompanying drawing 1 is that the utility model shows shape and position view outward.

Accompanying drawing 2 is the utility model force-amplifying transmission device motion principle scheme drawings.

Accompanying drawing 3 is the utility model drive mechanism schematic top plan view.

Motion principle: the rider is sitting on the half-turn chair form flatcar seat 24, pin is firmly pedaled stretcher 1 to the front lower place, power is passed to boosting-rod 4 by pedal rod 2 by bearing pin 3, boosting-rod 4 drives afterburning sprocket wheel 5,6, spur an end connect thereon drag chain 16, make and drag chain 16 and turn to sprocket wheel 7 along supporting, 8,9,10,11 orders are done the reversing sense motion, drive and drag chain 16 other end bonded assemblys swing arm of force 12, the swing arm of force 12 is under the effect of track adjusting wheel 14, move along direct orbit 13 given routes, the arm of force bearing 18 of the swing arm of force 12 by being sleeved on main shaft 20, stir the inboard, two sides all with the ratchet on the 60 tooth hinge wheels 15 of ratchet by the ratchet 17 that is positioned at its end, hinge wheel 15 is forwards rotated, hinge wheel 15 is passed to bicycle rear to power by card main gear chain 23 thereon, thereby make bicycle forwards move (motion process of so far having finished a side), when the another pin is exerted oneself, along with moving down of opposite side boosting-rod 4, power (sub-fraction) had been made a side boosting-rod 4 upward movements of merit by swinging to chain 22 by swinging to sprocket wheel 21 pullings, simultaneously spring 19 usefulness elastic force make and do not have the swing of the pulling force arm of force 12 to get back to treat control position, ratchet 17 usefulness springs eject, when the swing arm of force 12 is done the reversing sense motion, ratchet bevel friction pressuring spring retraction on the inclined-plane of ratchet 17 and the part 15, make the swing arm of force 12 activities freely, and make and drag chain 16 and remain tensioned state.

This driving device both sides correspondence, structure is identical, wherein two swing arm of forces 12 are sleeved on the main driving axle 20 by bearing 18, and two rail bars on the shared direct orbit 13, and the inboard, two sides all can make two part 12 alternating actions thereon with 60 tooth hinge wheels 15 of ratchet.

Compare with the standard bicycle of present use, the utility model has following characteristics:

1, laborsaving: (" forever " " flying pigeon ") pedal and floral disc force rate (pedal is passed to the power of bicycle rear by floral disc) are 1: 1.8 to 28 types to the standard bicycle that uses at present, the utility model adopts the two-stage lever, and (part 2 is an one-level by the part 5,6 on part 3 and the part 4, it is one-level that part 12 cooperates with part 15 by part 18) transmission, exert all one's strength and reach 1: 7.8 than (passing to the power of bicycle rear), be more than 4 times of bicycle that use at present, (spring 19 and support turn to sprocket wheel, and direct orbit etc. will consume sub-fraction power).

2, speed is fast: in the utility model force-amplifying transmission device, 4 of pedal rod 2 and boosting-rods are done 60 ° and are lived reciprocating cutter, but because use connection boosting-rod 4 as shown in Figure 2, the method of the swing arm of force 12, and make the swing arm of force 12 do 120 ° of motions, because changing 48 tooth floral disc sprocket wheels is 60 tooth hinge wheels 15, so the swing arm of force 12 does once to expire angle (60 °) motion, promptly be equivalent to 150 ° of motions (can give the afterburning angle of bicycle) of standard bicycle, and standard bicycle is being made circular movement to pedal the time, the angle that every pin can be exerted oneself is all less than 150 °, because the utility model pedal rod 2 is done 60 ° of motions, the range ability (360*3.14/2=565.2) that the range ability of pin (720*3.14/6=376.8) is done 180 ° of motions than standard bicycle pedal will lack 1/3rd, if so the kinematic velocity unanimity of pin, the utility model improves 50% than standard bicycle speed.

3, drive comfortable, at present the standard bicycle that uses since be rotary type to pedal, so will give two legs with sufficient activity space, therefore, vehicle seat all is leg-of-mutton, the rider rides on the triangle vehicle seat, whole body weight all concentrates on interior crotch portion, make this position very uncomfortable, especially ride period one is long, just can feel very tired, and the utility model is lived to pedal compound owing to only making 60 ° of low-angles to the front lower place, so change the triangle vehicle seat is half-turn chair form flatcar seat, and the rider is as being sitting on the chair.

4, there is not (power) dead center position, the present standard bicycle that uses, making the circumference rotary type to pedal the time, by vehicle seat and floral disc the position determined, have only when people's leg and car are pedaled at an angle, the power of just using is (when a pin and car are pedaled when being about to be 180 °, with regard to unrenewable power, this moment, the another pin was also at the opposite side of floral disc, more can't exert oneself) this just must cause the dead angle of temporary power, be to lean on the effect of inertia of bicycle just to overcome this shortcoming, lose inertia as bicycle, as strong wind, go up a slope, sand ground etc. just can't continue to ride down (be not sometimes ride motionless, but can't exert oneself continuously), the utility model is lived composite motion to pedal because two pin are only done 60 °, but two pedal rod free motions (not pind down by opposite one side), also there is no need all to do full angle (60 °) motion, (standard bicycle is fixed together owing to two pedals, so must make circle with moving) at every turn.Can do less than 60 ° of arbitrarily angled replacing, those works done at any time down on this are so the dead center position of power can not occur.

5, unique outlook: the utility model drive mechanism is than the standard bicycle complexity, and part is many and can't concentrate, so need the cover (be rider's safety, also be the dust protection pollution) of a larger volume, this case can replace the big spider of standard bicycle.

Claims (4)

1, a kind of laborsaving flat seat formula bicycle comprises front and back wheel, drive mechanism, vehicle frame (drive mechanism case), handlebar peace vehicle seat is characterized in that: the identical force-amplifying transmission device of two covers is arranged in drive mechanism, and every cover force-amplifying transmission device is by stretcher (1), pedal rod (2), bearing pin (3), boosting-rod (4), afterburning sprocket wheel (5), (6), support, turn to sprocket wheel (7), (8), (9), (10), (11) the swing arm of force (12), track adjusting wheel (14) drags chain (16), ratchet (17), arm of force bearing (18), spring (19), and the shared direct orbit (13) of two covers, the inboard, two sides is all with 60 tooth hinge wheels (15) of ratchet, main driving axle (20) is swung to sprocket wheel (21), swings to chain (22), main gear chain (23), case (vehicle frame) (25) is formed.Pedal rod (2) connects boosting-rod (4) by bearing pin (3), bearing pin (3) hinge joint is on vehicle frame (case) (25), afterburning sprocket wheel (5), (6) and support turn to sprocket wheel (7), (8), (9), (10), (11) be installed in respectively on boosting-rod (4) and the vehicle frame (case) (25), an end that drags chain (16) is installed on the boosting-rod (4), the other end is installed on the swing arm of force (12), and drag chain (16) and be stuck in afterburning sprocket wheel (5), (6) and support turn to sprocket wheel (7), (8), (9), (10), (11) on, pedal rod (2) is done 60 ° of motions, and drives 120 ° of motions of swing arm of force do.The swing arm of force (12) is sleeved on the main driving axle (20) by arm of force bearing (18), cooperate with the ratchet of hinge wheel (15) by being positioned at its ratchet of not holding (17), on the swing arm of force (12), be equipped with spring (19), the other end of spring (19) is connected on the vehicle frame (case) (25), on vehicle frame (case) (25), be equipped with and swing to sprocket wheel (21), swing to the last card of sprocket wheel (21) and swing to chain (22), the two ends of swinging to chain (22) are installed in respectively on the boosting-rod (4) of two cover force-amplifying transmission devices.

2, a kind of laborsaving flat seat formula bicycle according to claim 1 is characterized in that: the afterburning sprocket wheel (5), (6) that are no less than two are housed on boosting-rod (4), and along boosting-rod (4) axial arranging.

3, a kind of laborsaving flat seat formula bicycle according to claim 1 is characterized in that: in drive mechanism, be provided with direct orbit (13).

4, a kind of laborsaving flat seat formula bicycle according to claim 1, it is characterized in that: its vehicle seat is a half-turn chair form flatcar seat.

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