CN2639146Y

CN2639146Y - Chair-type damping variable-speed travelling bicycle

Info

Publication number: CN2639146Y
Application number: CN 03276360
Authority: CN
Inventors: 张亮; 张立国
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-08-18
Filing date: 2003-08-18
Publication date: 2004-09-08
Anticipated expiration: 2013-08-18

Abstract

A chair-type damping variable-speed traveling bicycle, having a small front wheel and a big back wheel; a backrest is connected with the back part of the chair-type saddle; a centre tap support is connected on the head tube of the main bicycle frame, and a pedal sprocket which is at the upper part of the front part arranged on the centre tap support; the height of the centre part of the pedal sprocket is equal to the height of the surface of the chair-type saddle; a big sprocket and a small sprocket are connected in parallel at the lower part of the main bicycle frame, and a front chain connects the pedal sprocket and the paralleled small sprocket together in the centre, moreover, the centre paralleled big sprocket is connected by a back chain, a back variable-speed sprocket and a transmission; a spring shock damper is arranged at the back bicycle frame. The utility model has the advantages that the utility model improves the bicycle speed and doing-work efficiency, decreases the physical consumption, and ensures the people use the bicycle in comfortable posture; meanwhile, this bicycle is suitable to ride for a travel, because the utility model is convenient to get on and off, the operation of the bicycle is flexible, and the whole bicycle is light, etc.

Description

Chair type damping speed change touring bicycle

Technical field

The utility model relates to technical field of bicycles, belongs to a kind of chair type damping speed change touring bicycle.

Background technology

At present, the pedal of existing bike tech is below saddle, the cyclist rides on the saddle, and both feet are pedaled power in order to continue increasing downwards to pedal, the cyclist must bend over downwards, health presses down, and sticks up behind the buttocks, has a pain in the back with this posture as easy as rolling off a log cyclist of causing that rides, and the fatigue of shoulder week and cervical vertebra, continue to be pressed on the saddle the pelvis groove like a hen on a hot girdle.Ride on the saddle to cyclist's body erect, be as good as and pushing away a wall down with the wind, the fast more air resistance of the speed of a motor vehicle is big more, ride and require great effort more, when the power of pedaling that applies surpasses body weight, health can lose seat along pedaling force direction, and the maximum that can not make full use of shank is pedaled power, has weakened the climbing and the acceleration capability of bicycle.The cyclist is sitting in that both feet can not land on the saddle, brings many inconveniences and safety hazard for temporary term stop or emergency brake.

Existing bicycle mainly exists, car load center of gravity height, and air resistance is big, is easy to generate tired posture by bike, and the power of pedaling that both feet are applied generally can not surpass cyclist's the body weight and the inconvenient many disadvantages of getting on or off the bus.

Summary of the invention

The purpose of this utility model is that at existing bicycle car load center of gravity height, air resistance is big; Be easy to generate tired posture by bike; The power of pedaling that both feet are applied generally can not surpass cyclist's the body weight and the inconvenient many disadvantages of getting on or off the bus, provide a kind of front-wheel little, trailing wheel is big, the chair type saddle of band backrest, the pedal sprocket wheel is positioned at the front vehicle wheel top, be installed on the center tap support, the center tap support that protracts is with the front tube welding of vehicle frame, the pedal terrain clearance equates with the height of seat face, cyclist's seating or recline on the chair type saddle forward to pedal, adopt double stage chain wheel one side transferring power, can produce the chair type damping speed change touring bicycle of the bigger power of pedaling by the counteraction of backrest.

For achieving the above object, the utility model is taked following design plan:

A kind of chair type damping speed change touring bicycle, it comprises handlebar, pedal sprocket wheel, bumper, front-wheel, trailing wheel, change-speed box, back sprocket wheel, main car frame, back vehicle frame, front tube, front vehicle wheel breeches pipe, it is characterized in that: its front-wheel is little, and trailing wheel is big; Chair type saddle rear portion is connected with backrest; Be connected with the center tap support on the main car frame front tube, the pedal sprocket wheel is installed on the center tap support, this pedal sprocket wheel is positioned at the top of front vehicle wheel; The seat surface of height that this pedal centre of sprocket is liftoff and chair type saddle is contour; Be connected with middle large and small sprocket wheel in parallel in the main car frame lower end, this pedal sprocket wheel is connected by preceding chain with middle minor sprocket in parallel, and this centre hinge wheel in parallel is connected with back speed-changing chain, change-speed box by rear chain; Back vehicle frame is provided with spring damper.

Described main car frame upper end is connected with the groove carriage of upward opening, in the groove carriage, be provided with the rectangular tube support that can move forward and backward, be connected with cushion on this support, on the anterior sidewall of support, be provided with through hole, on the sidewall of groove carriage, also be provided with through hole cooresponding with it, be connected with a fan-shaped regulating plate in the rear end of rectangular tube support, this arc limit, fan-shaped regulating plate upper edge is provided with an exhausting hole, be hinged with the backrest column in the rear end of rectangular tube support, the backrest column be provided with fan-shaped regulating plate on the corresponding screw of an exhausting hole.

Described handlebar 1 is provided with the turning cylinder that is used to regulate the expansion link of height and regulates front and back.

The fish belly deformation cross section laced beam that described main car frame and back vehicle frame all adopt sheet steel to simmer system, welding is made.

The seat face of the cushion of chair type saddle is between the pedal highs and lows of pedal sprocket wheel, and it can bring into play the foot-operated power of maximum of the people's sitting posture of riding, and is best application of force district scope.

The utility model cyclist's posture is changed into sitting posture by existing striding type, the terrain clearance of chair type saddle and common motor bike are similar, cyclist's seating or recline on the chair type saddle, both feet travel forward to pedal, be seated to pedal posture has reduced the height of gravitational center of bicycle, and the wind area in human body front obviously dwindles, reduce air resistance very effectively, can obtain tangible labor-saving effect.

The seat of chair type saddle is towards rear-inclined, and for adapting to the rider of different heights, seat can move front and back on vehicle frame; Backrest is hinged on the backrest column versatilely, can be according to figure's automatic compensation degree of dip of cyclist, and the backrest column can also carry out the wide-angle layback when half recumbency was ridden, ride figure's the traveling comfort requirement of satisfied difference.

Pedal sprocket wheel of the present utility model is positioned at the front vehicle wheel top, be installed on the center tap support, the support that stretches out forward welds with front tube, the height of center of pedal sprocket wheel is a little less than the seat face, seat face and step poor, be the ride foot-operated power of maximum and the best application of force district of people's sitting posture, it is almost vertical with the back of seat plane to pedal force direction, the counteraction of backrest has limited moving of human body, effectively utilized the muscle strength at positions such as the back of the body, waist, thigh, leg, can continuously continue to strengthen and pedal power, reduce the expenditure of energy of idle work, improve mechanical efficiency.

Handlebar of the present utility model can carry out the height and the adjusting of front and back position, and bicyclist's arm can be within action radius like a cork, and the height of handlebar is almost shoulder-high in riding, and arm is equalled the grasp handlebar direction of stretching naturally.Trailing wheel mounting spring bumper has avoided being applied to originally the impact of lumbar spine effectively, has increased the traveling comfort of riding on the convex-concave road surface.

The utility model adopts the transmission of double stage chain wheel speedup to the rear wheel transmission of drive force, speed ratio is can design-calculated bigger, the transmission process of speedup is: the bicyclist scrunches the centre large and small sprocket wheel in parallel that the pedal sprocket wheel drives chain drive chair type saddle below, drive the speed-changing chain transferring power of chain by sprocket wheel broad in the middle again to rear wheel, because the pedal teeth number of sprocket is more than the number of teeth of minor sprocket in parallel, and the number of teeth of minor sprocket in parallel is less than the number of teeth of hinge wheel in parallel, so form the speedup transmission, can obtain the speed of a motor vehicle faster effortlessly with the stepping frequency of ordinary bicycle.

Compared with the prior art the utility model has following advantage:

1, cyclist of the present utility model is seated to pedal, centre of body weight reduces, and the body area that facings the wind reduces about more than 30%, overcomes the also corresponding minimizing of expenditure of energy of air resistance, only this item technical measures, the speed of a motor vehicle just can from per hour 15 kilometers bring up to more than 20 kilometers.

2, the backrest of the chair type saddle health that limited the cyclist moves, cyclist's the back of the body, stern, thigh and shank can both be participated in firmly simultaneously, give full play of the muscle strength of limbs, can produce the maximum power of pedaling, even the power of pedaling of shank is several times as much as body weight, still can continue to apply the power of pedaling like a cork, eliminated fully that existing bicycle is the sort of does not bend over to press down the phenomenon that just can not continue to increase the power of pedaling, improved work doing efficiency, reduce physical consumption, can obtain splendid acceleration/accel and grade climbing performance in riding.

3, the cyclist is seated and moves after the center of gravity to pedal, leaning on back is on back of seat, support body wt with ischium, avoided the lasting compressing of basin bone groove and traditional saddle, pain between having eliminated two strands owing to ride, has been eliminated the strength of arm support head and upper body weight with leaning back on handlebar, even drive continuously for a long time, bicyclist's the back of the body, waist, both arms, shoulder week and musculi colli can not produce nervous tired pain yet.The chair type saddle that adapts to different heights and different sitting posture characteristics has ensured that the cyclist can ride with the comfortable figure of the best.

4, the terrain clearance of chair type saddle is more much lower than existing bicycle saddle, runs into " red light " and stops or during emergency brake, and the cyclist can bipod lands simultaneously and stands, and it is extremely convenient to get on or off the bus.As long as pin once continuing to travel with pedaling, facility freely in the extreme when starting to walk again.

5, adopt less 18 inches before steered wheel, bump with pedal in the time of can avoiding wheel steering effectively, can shorten wheel base again, satisfy the alerting ability of handling, minimizing parking space and complete vehicle weight.

6, the transmitting ratio of double stage chain wheel driving system is can design-calculated bigger, and same stepping frequency can obtain than ordinary bicycle faster speed; Trailing wheel is equipped with spring damper, and the very desirable damping effect of Lu Shangyou in that fluctuating is jolted has relaxed the jerk that puts on ischium, lumbar vertebrae effectively.According to road conditions and physical efficiency, adjust the speed of a motor vehicle by change-speed box, the rider can cosily experience the enjoyment and the arbitrary impression of driving the post by the utmost point.

7, vehicle frame is the fish belly deformation cross section laced beam of the system of simmering with sheet steel, and good rigidly is and in light weight, and appearance design is whole smooth, and is dynamic strong, extremely attractive.

8, be fit to the chair type saddle of different sitting posture characteristics, comfortable labour-saving is posture by bike; Can make full use of the power of the pedaling track of limbs strength, unobstructed sight and damping performance, overcome all deficiency of existing bike tech at aspects such as comfortable, safe, laborsaving and speed, give bicycle abundanter life intension and temperament and interest, therefore, the utility model is people busy in " city whirlpool ", a body and mind relaxing is provided has gone " the intimate partner " of open-air outing, long-term travel and sport and body-building.

The utility model can improve the speed of a motor vehicle, improves work doing efficiency, reduces physical consumption, can ensure that the cyclist can ride with the comfortable figure of the best, HOP ON, and flexible operation, complete vehicle weight is light, is more suitable for out on tours and rides.

Description of drawings

Fig. 1 is a structural representation of the present utility model

Fig. 2 is a chair type saddle structure scheme drawing of the present utility model

Fig. 3 is a backrest pillar construction scheme drawing of the present utility model

Fig. 4 props up the frame connecting structure scheme drawing for center tap of the present utility model

The specific embodiment

Referring to shown in Figure 1: a kind of chair type damping speed change touring bicycle, it comprises handlebar 1, pedal sprocket wheel 5, bumper 11, front-wheel 21, trailing wheel 14, change-speed box 13, back sprocket wheel 15, main car frame 20, back vehicle frame 12, front tube 31, front vehicle wheel breeches pipe 30, it is characterized in that: its front-wheel is little, and trailing wheel is big; Chair type saddle 7 rear portions are connected with backrest 10; Be connected with center tap support 6 on main car frame 20 front tubes 31, pedal sprocket wheel 5 is installed on center tap support 6, this pedal sprocket wheel 5 is positioned at the top of front vehicle wheel 21; The height that these pedal sprocket wheel 5 centers are liftoff and the seat surface of chair type saddle 7 are contour; Be connected with middle large and small sprocket wheel 18,17 in parallel in main car frame 20 lower ends, this pedal sprocket wheel 5 is connected by preceding chain 19 with middle minor sprocket 17 in parallel, and this centre hinge wheel 18 in parallel is connected with back speed-changing chain 15, change-speed box 13 by rear chain 16; Back vehicle frame 12 is provided with spring damper 11.

See Fig. 2, shown in Figure 3, described main car frame 20 upper ends are connected with the groove carriage 28 of upward opening, in groove carriage 28, be provided with the rectangular tube support 26 that can move forward and backward, be connected with cushion 8 on this support, on the anterior sidewall of support, be provided with through hole 27, on the sidewall of groove carriage 28, also be provided with through hole 33 cooresponding with it, be connected with a fan-shaped regulating plate 25 in the rear end of rectangular tube support 26, this arc limit, fan-shaped regulating plate 25 upper edge is provided with an exhausting hole 24, be hinged with backrest column 22 in the rear end of rectangular tube support 26, backrest column 22 be provided with fan-shaped regulating plate 25 on the corresponding screw 34 of an exhausting hole.It is fixing with backrest column 22 with screw 34 to pass through hole 24 with screw 23, and selecting through holes different on the fan-shaped regulating plate 25 to be connected with screw 34 is the angle of scalable backrest 10.

Described handlebar 1 is provided with the turning cylinder 2 that is used to regulate the expansion link 3 of height and regulates front and back.

The fish belly deformation cross section laced beam that described main car frame 20 and back vehicle frame 12 all adopt sheet steel to simmer system, welding is made.

The seat face of the cushion 8 of chair type saddle 7 is between the pedal highs and lows of pedal sprocket wheel 5.It can bring into play the foot-operated power of maximum of the people's sitting posture of riding, and is best application of force district scope.

This chair type damping speed change touring bicycle, its front-wheel is little 18 inches, trailing wheel is big 24 inches, the chair type saddle that the band backrest is arranged, the pedal sprocket wheel is positioned at the front vehicle wheel top, be installed on the center tap support with main car frame front tube weld together, the seat face of centre of sprocket terrain clearance and chair type saddle is contour.The cyclist stands with the backrest of chair type saddle behind, is sitting in or reclines on the chair type saddle, and both feet forward to pedal.And adopt the double stage chain wheel transmission, transmit the propulsive effort of pedal to rear wheel by two chains.Mounting spring bumper on the vehicle frame of back.At rear wheel six gear sprocket wheel speed-changing mechanisms are housed.

The chair type saddle 7 of band backrest is movably arranged in the groove carriage 28 on the main car frame 20, the groove both sides are drilled with equidistant circular hole, leg according to the cyclist is long, fixedly the rectangular tube support 26 of cushion and connection backrest column can move forward and backward in groove, after the position adjustment is suitable, earlier circular hole on the rectangular tube support 26 and groove two mother rib lateral rotundums are aligned, use bolt 29 fastening then, the cushion 8 of chair type saddle 7 is towards the back low dip, backrest 10 is hinged on the backrest column 22 versatilely, direct support cyclist's back, can be according to back figure's automatic compensation degree of dip, backrest column link joint is on rectangular steel pipe support 26 rear ends of fixing cushion, and the screw through-hole 24 decision layback angles of the fan-shaped regulating plate 25 by rectangular steel pipe back-end support upper end adapt to the different figures' that ride traveling comfort requirement.

Pedal sprocket wheel 5 is installed on the center tap support 6 of front-wheel 21 tops, the center tap support 6 that stretches out forward is welded on (see figure 4) on main car frame 20 front tubes 31, the pedal centre of sprocket equates that with the terrain clearance of cushion 8 the sprocket wheel both sides are taked in the protection of pedal sprocket wheel, and each installs the form of paying dish.

The double stage chain wheel chain speedup transmission that speed ratio is bigger, the bicyclist scrunches the centre large and small sprocket wheel 18,17 in parallel that pedal sprocket wheel 5 drives preceding chain 19 drive seat chair form saddles 7 belows, drive sprocket wheel 15 transferring power of rear chain 16 by sprocket wheel 18 broad in the middle again to the change-speed box 13 of rear wheel 14, because pedal sprocket wheel 5 numbers of teeth are more than the number of teeth of minor sprocket 17 in parallel, the number of teeth of minor sprocket 17 in parallel is less than the number of teeth of hinge wheel 18 in parallel, so form the speedup transmission, when stepping frequency is identical, can obtain the speed of a motor vehicle faster effortlessly.

Cyclist's posture is changed into sitting posture by existing striding type, the terrain clearance of chair type saddle 7 is located between 680 millimeters to 710 millimeters, height is similar with common motor bike, cyclist's seating or recline on chair type saddle 7, both feet travel forward to pedal, to pedal posture is seated, reduced the car load height of gravitational center of bicycle, the wind area in human body front reduces 20% to 30%, reduced air resistance effectively, obtained tangible labor-saving effect, only this item technical measures, the speed of a motor vehicle can from per hour 15 kilometers bring up to more than 20 kilometers.

The cyclist leans against chair type saddle 7 and scrunches pedal sprocket wheel 5 forward, it is almost vertical with backrest 10 planes of seat to pedal force direction, the counteraction of backrest 10 has limited moving of human body, effectively utilized the back of the body, waist, strand, the muscle strength at positions such as leg, even the power of pedaling is several times as much as cyclist's body weight, still can continue to strengthen the power of pedaling, overcome existing bicycle in riding, when cyclist's shank is pedaled power greater than body weight, cyclist's health promptly begins to move along pedaling force direction, the power of pedaling can not further be increased, can not bring into play the technological deficiency of cyclist's maximum leg power, thereby improved acceleration/accel and maximum speed.

Handlebar 1 can carry out the adjusting of height and front and back position, the turning cylinder 2 before and after the adjusting of the expansion link 3 of telescopic adjustment height and rotation handgrip 1 lower end.The height of handlebar 1 can be able to be adjusted to shoulder-high height, because the rider stands with backrest 10 behind, lean back, move after the center of gravity, the flat grasp handlebar direction of stretching of arm, the load that arm is applied to handlebar 1 upper support head and upper body weight has alleviated 90%, even drive continuously for a long time, bicyclist's both arms, shoulder week and musculi colli can not produce nervous tired pain yet.

Trailing wheel 14 mounting spring bumpers 11 and change-speed box 13 have increased the traveling comfort of riding on the convex-concave road surface, and the Lu Shangyou damping effect very in that fluctuating is jolted has relaxed the jerk that puts on ischium, lumbar vertebrae effectively.According to road conditions and physical efficiency, adjust the speed of a motor vehicle by change-speed box, the rider can cosily experience the enjoyment and the arbitrary impression of driving the post by the utmost point.

Main car frame 20 and back vehicle frame 12 all adopt sheet steel to simmer system, the fish belly deformation cross section laced beam of welding, and good rigidly is and in light weight, and appearance design is whole smooth, and is dynamic strong, extremely attractive.

Claims

1, a kind of chair type damping speed change touring bicycle, it comprises handlebar (1), pedal sprocket wheel (5), bumper (11), front-wheel (21), trailing wheel (14), change-speed box (13), back sprocket wheel (15), main car frame (20), back vehicle frame (12), front tube (31), front vehicle wheel breeches pipe (30), it is characterized in that: its front-wheel is little, and trailing wheel is big; Chair type saddle (7) rear portion is connected with backrest (10); Be connected with center tap support (6) on main car frame (20) front tube (31), pedal sprocket wheel (5) is installed on center tap support (6), this pedal sprocket wheel (5) is positioned at the top of front vehicle wheel (21); The height that this pedal sprocket wheel (5) center is liftoff and the seat surface of chair type saddle (7) are contour; Be connected with middle large and small sprocket wheel in parallel (18,17) in main car frame (20) lower end, this pedal sprocket wheel (5) is connected by preceding chain (19) with middle minor sprocket in parallel (17), and this centre hinge wheel in parallel (18) is connected with back speed-changing chain (15), change-speed box (13) by rear chain (16): back vehicle frame (12) is provided with spring damper (11).

2, chair type damping speed change touring bicycle according to claim 1, it is characterized in that: described main car frame (20) upper end is connected with the groove carriage (28) of upward opening, in groove carriage (28), be provided with the rectangular tube support (26) that can move forward and backward, be connected with cushion (8) on this support, on the anterior sidewall of support, be provided with through hole (27), on the sidewall of groove carriage (28), also be provided with through hole cooresponding (33) with it, be connected with a fan-shaped regulating plate (25) in the rear end of rectangular tube support (26), this arc limit, fan-shaped regulating plate (25) upper edge is provided with an exhausting hole (24), be hinged with backrest column (22) in the rear end of rectangular tube support (26), backrest column (22) be provided with fan-shaped regulating plate (25) on the corresponding screw of an exhausting hole (34).

3, chair type damping speed change touring bicycle according to claim 1 is characterized in that: described handlebar (1) is provided with the turning cylinder (2) that is used to regulate the expansion link (3) of height and regulates front and back.

4, chair type damping speed change touring bicycle according to claim 1 is characterized in that: the fish belly deformation cross section laced beam that described main car frame (20) and back vehicle frame (12) all adopt sheet steel to simmer system, welding is made.

5, chair type damping speed change touring bicycle according to claim 1, it is characterized in that: the seat face of the cushion (8) of chair type saddle (7) is between the pedal highs and lows of pedal sprocket wheel (5).