WO2008131678A1

WO2008131678A1 - A bicycle

Info

Publication number: WO2008131678A1
Application number: PCT/CN2008/070777
Authority: WO
Inventors: Liqun Hu
Original assignee: Liqun Hu
Priority date: 2007-04-28
Filing date: 2008-04-23
Publication date: 2008-11-06

Abstract

A bicycle has a seat (2) translating with rotating periodically when the bicycle running. The bicycle is composed of a normal bicycle with a flat link mechanism. The bicycle frame (5) acts as a frame of the flat link mechanism. The seat (2) is fixed on a link rod (8) not directly connected to the bicycle frame (5) in said flat link mechanism. A central shaft (10) is a crank. One end of said link rod (8) is rotatablely connected to an axle neck (12) of the link rod of said crank. The other end is connected to the member of said bicycle frame (5).

Description

Bicycle

Technical field

The utility model relates to a bicycle.

Background technique

In the prior art, the bicycle includes a frame, a front wheel disposed at a front lower portion of the frame, a rear wheel disposed at a lower rear portion of the frame, and a seat seat disposed at a middle portion of the frame, disposed in the bicycle The handlebar above the front of the frame is used to drive the pedals of the rear wheel. At present, bicycles are mainly used for transportation and fitness, and their entertainment functions are still lacking, and the effect of fitness can be further enhanced.

Summary of the invention

The technical problem to be solved by the present invention is to provide a bicycle in which the seat can be combined with a periodic motion having both translation and rotation.

In order to solve the above problems, the basic idea of the present invention is: a bicycle including a frame, a front wheel disposed at a front lower portion of the frame, a rear wheel disposed at a lower rear portion of the frame, and a vehicle disposed at the rear of the frame a seat above the middle of the frame, a handlebar disposed above the front of the frame, and a drive mechanism; forming a planar four-bar mechanism with a crank on the frame, a frame of a planar four-bar mechanism; the seat is fixed to a link of the planar four-bar mechanism that is not directly coupled to the frame; the crank is realized by a crank of a crankshaft provided on the frame; One end of the link that is not directly coupled to the frame is rotatably coupled to the connecting rod journal of the crankshaft, and the other end is coupled to a member coupled to the frame; the crankshaft is coupled to the drive mechanism.

As the technical solution for realizing the basic idea of the present invention, there are the following six types:

Solution 1: A bicycle includes a frame, a front wheel disposed at a front lower portion of the frame, a rear wheel disposed at a lower rear portion of the frame, and a seat seat disposed at a middle portion of the frame, disposed on the bicycle a handlebar above the front portion of the frame, a middle shaft disposed at a lower portion of the middle portion of the frame, and a pair of pedal cranks respectively fixedly coupled to the two ends of the middle shaft, and two coupled to the pair respectively a pedal on the pedal crank; the central shaft is a crankshaft; a connecting rod and a rocker are provided, and one end of the connecting rod is rotationally coupled with the connecting rod journal of the central shaft, and the other end of the connecting rod Hinged with one end of the rocker, the other end of the rocker is hinged on the frame; the middle shaft, the connecting rod, the rocker and the frame constitute a crank rocker mechanism; the seat and the joint The position of the rod is relatively fixed.

Solution 2: A bicycle includes a frame, a front wheel disposed at a front lower portion of the frame, a rear wheel disposed at a lower rear portion of the frame, and a seat seat disposed at a middle portion of the frame, disposed on the bicycle a handlebar above the front portion of the frame, a middle shaft disposed at a lower portion of the middle portion of the frame, and a pair of pedal cranks respectively fixedly coupled to the two ends of the middle shaft, and two coupled to the pair respectively a pedal on the pedal crank; the central shaft is formed by an eccentric wheel on a straight shaft, the eccentric wheel is fixedly coupled with the straight shaft; a connecting rod and a rocker are provided, and the eccentric wheel is connected with the eccentric wheel One end of the rod is rotatably coupled, and the other end of the connecting rod is hinged with one end of the rocker, and the other end of the rocker is hinged on the frame, and is composed of the central shaft, the connecting rod, the rocker and the frame The motion characteristics of the mechanism conform to the motion characteristics of the crank rocker mechanism; the position of the seat and the link is relatively fixed.

Solution 3: A bicycle includes a frame, a front wheel disposed at a front lower portion of the frame, a rear wheel disposed at a lower rear portion of the frame, and a seat disposed above a middle portion of the frame, disposed on the bicycle a handlebar above the front portion of the frame, a middle shaft disposed at a lower portion of the middle portion of the frame, and a pair of pedal cranks respectively fixedly coupled to the two ends of the middle shaft, and two coupled to the pair respectively a pedal on the pedal crank; the central shaft is a crankshaft; a connecting rod is provided, and one end of the connecting rod is rotationally coupled with the connecting rod journal of the central shaft, and the other end of the connecting rod and the slider Hinged, the slider is slidably coupled with a slider slot fixedly coupled to the frame, the middle shaft, the connecting rod, the slider, the slider slot and the frame constitute a crank slider mechanism; the seat and the seat The position of the connecting rod is relatively fixed.

Solution 4: A bicycle includes a frame, a front wheel disposed at a front lower portion of the frame, a rear wheel disposed at a lower rear portion of the frame, and a seat disposed above a middle portion of the frame, disposed on the bicycle a handlebar above the front portion of the frame, a middle shaft disposed at a lower portion of the middle portion of the frame, and a pair of pedal cranks respectively fixedly coupled to the two ends of the middle shaft, and two coupled to the pair respectively a pedal on the pedal crank; the central shaft is formed by an eccentric wheel on the straight shaft, the eccentric wheel is fixedly coupled with the straight shaft; a connecting rod is provided, and the eccentric wheel and the connecting rod are rotated at one end Coupling, the other end of the connecting rod is hinged with the slider, the sliding block is slidably coupled with the sliding slot provided on the frame, and is composed of the central shaft, the connecting rod, the sliding block, the sliding slot and the frame The motion characteristics of the mechanism conform to the motion characteristics of the crank slider mechanism; the position of the seat and the link is relatively fixed.

Scheme 5: A bicycle includes a frame, a front wheel disposed at a front lower portion of the frame, a rear wheel disposed at a lower rear portion of the frame, and a setting a seat above the middle of the frame, a handlebar disposed above the front of the frame, and a central shaft disposed below the middle of the frame, and a pair of the axles are fixedly coupled to the central axle a pedal crank at both ends, two pedals respectively coupled to the pair of pedal cranks; the middle shaft is a crankshaft; a guide rod is provided, and one end of the guide rod and the connecting rod journal of the middle shaft Between the other ends of the guide rod, the other end of the guide rod is slidably coupled with a rocker hinged on the frame, the middle shaft, the guide rod, the rocker and the frame constitute a crank rocker mechanism; Relative to the position of the guide rod.

Solution 6: A bicycle includes a frame, a front wheel disposed at a front lower portion of the frame, a rear wheel disposed at a lower rear portion of the frame, and a seat seat disposed at a middle portion of the frame, disposed on the bicycle a handlebar above the front portion of the frame, a middle shaft disposed at a lower portion of the middle portion of the frame, and a pair of pedal cranks respectively fixedly coupled to the two ends of the middle shaft, and two coupled to the pair respectively a pedal on the pedal crank; the central shaft is formed by an eccentric wheel on the straight shaft, the eccentric wheel is fixedly coupled with the straight shaft; a guide rod is provided, and the eccentric wheel and the guide rod rotate at one end Coupling, the other end of the guide rod is slidably coupled with a rocker hinged on the frame, and the movement characteristics of the central shaft, the guide rod, the rocker and the frame mechanism conform to the motion characteristics of the crank rocker mechanism; The position of the seat and the guide rod is relatively fixed.

The plane link mechanism formed in the first scheme and the second scheme belongs to the crank rocker mechanism; the planar linkage mechanism formed in the third scheme and the fourth scheme belongs to the crank slider mechanism; The planar linkage mechanism formed in the fifth and sixth embodiments is a crank rocker mechanism. In the crank rocker mechanism, the crank slider mechanism or the crank rocker mechanism, when the crank makes a circular motion, the movement of the connecting rod or the guide rod in the corresponding mechanism is a compound periodicity having both translational and rotational motion. motion. The position of the seat and the connecting rod or the guide rod described in the first to sixth embodiments is relatively fixed, so that the movement of the seat when the bicycle is riding is a combination of both translation and rotation. Cyclical movement, when people ride on the seat, will produce a rich sense of movement, enhancing the entertainment when riding. Since the seat has both translation and rotation when riding, the muscles of the human body participating in the exercise will increase, and the exercise effect during riding is enhanced.

In an improvement, in any one of the first to sixth aspects, one end of the pedal crank is fixedly coupled to the central shaft, and the pedal crank is fixed on the central shaft in a circumferential direction to change the a structure in which the pedal crank is circumferentially fixed at an angle on the central axis, and the circumferential fixing structure has at least one fixed state such that an angle between the pair of pedal cranks is 180 degrees, and the circumferential fixing The structure has at least one fixed state in which an angle between the pair of pedal cranks is 0 degrees and an angle between the pair of pedal cranks and the crank corresponding to the center shaft crank or the eccentric is 180 degree. The structure in which the pedal crank is fixedly coupled to the central shaft can adopt the following scheme to satisfy the above-mentioned features of the circumferentially fixed structure on the central axis: the shaft head of the central shaft is a shaped cylinder having a cross section and the sides of the regular polygon The number is an even number, and at the end of the pedal crank, there is a polygonal groove matching the axial head of the regular polygonal cylinder, the groove is at the same position on the two pedal cranks, and the above section is a positive-poly type shaft head is inserted into a corresponding groove in the pedal crank, fixed by a fastening mechanism, and when any of the pedal cranks is equivalent to the center shaft crank or the eccentric crank When the angle between the two is 180 degrees, the shaft head is just aligned with the groove, that is, the shaft head can be inserted into the groove. With the above improvement, the two pedal cranks can be fixed at different angles, and the pedal crank can be fixed at different angles with the crank of the middle shaft crank or the eccentric wheel. The angles are different, and the force used when riding is different, so that there are more ways to select when riding, which increases entertainment and also makes the exercise effect diverse.

As an improvement of the appeal plan one, three, and five, a mechanism for adjusting the effective length of the middle shaft crank is provided on the central shaft, the middle shaft has two working states, and the middle shaft has an effective length of zero, One is that the effective length of the crankshaft is not zero. When the effective length of the center crank is not zero, the center shaft can work at least for two different effective lengths of the center crank. When the effective length of the central axle crank is zero, the position of the connecting rod and the frame is relatively fixed, and the position of the seat and the connecting rod is relatively fixed, so that the position of the seat and the frame is relatively fixed, which can be used as a common Cycling; When the effective length of the central crank is not zero, the central shaft operates at different effective lengths of the central shaft crank, and the link connected to the crank of the central shaft moves at a different amplitude during operation. The position of the seat and the connecting rod is relatively fixed, so that the amplitude of the periodic movement of the seat can be adjusted; and the effective length of the central shaft crank is different, and the acting moment between the central shaft and the connecting rod is different, so that the riding The amount of force can be adjusted.

As an improvement of the second, fourth and sixth appeals, a mechanism for adjusting the eccentricity of the eccentric is provided on the central axis, and the central shaft has two working states, one is zero eccentricity, and the other is eccentricity. The distance is not zero. When the eccentricity is not zero, the central axis can work at least at two different lengths of eccentricity. When the eccentricity of the eccentric is zero, the position of the connecting rod or the guide rod and the frame are relatively fixed, and the position of the seat and the connecting rod or the guiding rod is relatively fixed, so that the seat and the frame are fixed. The position is relatively fixed and can be used as an ordinary bicycle. When the eccentric length of the eccentric is not zero, the middle shaft works at different eccentric lengths, and the connecting rod or the guide rod coupled to the eccentric moves during operation. The magnitude of Differently, the position of the seat and the connecting rod or the guide rod is relatively fixed, so that the amplitude of the periodic movement of the seat can be adjusted; and the eccentric length of the eccentric is different, and the middle shaft and the connecting rod or the guiding rod are The acting moment is different, so the force of the ride can be adjusted.

As an improvement to the pedal described in any one of the above aspects 1 to 6, the pedal can be pulled with the sole of the foot or with the instep. In order to achieve this, the basic idea is: the pedal includes: a sole member, an instep member, a bracket and a pedal shaft; the bracket includes an upper end and a lower end; and one end of the sole member is coupled to a lower end of the bracket One end of the instep member is coupled to the upper end of the bracket; the instep member and the sole member are located on the same side of the bracket; one end of the pedal shaft is coupled to the foot member and the foot member a position between the instep members, the foot shaft being located on a side of the bracket opposite the foot member and the instep member; the foot member being lower, the instep member In the upper state, the axis of the pedal shaft is located at an upper portion of a center of gravity of the bracket, the instep member and the foot member coupled to the mechanism; the instep member is at the foot The length in the axial direction of the tread shaft is smaller than the length of the foot member in the direction of the axis of the pedal shaft.

There are two technical solutions for realizing the concept of pedal improvement:

Foot plan A: - a bicycle pedal, comprising: a sole member, an instep member, a bracket and a pedal; the bracket includes an upper end and a lower end; and one end of the sole member and a lower end of the bracket Fixedly or rotationally coupled; one end of the instep member is fixedly coupled or rotatably coupled to the upper end of the bracket; the instep member and the sole member are located on the same side of the bracket; One end of the pedal shaft is rotatably coupled to a position between the sole member and the instep member on the bracket, the pedal shaft being located on the bracket and the sole member and the foot member An opposite side of the instep member; wherein the foot shaft member is lower and the instep member is in an upper state, the axis of the pedal shaft is located at the bracket, the instep member, and the sole The component is coupled to an upper portion of a center of gravity of the mechanism; the length of the instep member in the axial direction of the pedal axis is smaller than the length of the sole member in the axial direction of the pedal axis.

Foot plan B: - a bicycle pedal, comprising: a sole member, an instep member, a bracket and a pedal shaft; the bracket includes an upper end and a lower end; and one end of the sole member and a lower end of the bracket Fixedly or rotationally coupled; one end of the instep member is fixedly coupled or rotatably coupled to the upper end of the bracket; the instep member and the sole member are located on the same side of the bracket; One end is fixedly coupled to the position between the sole member and the instep member on the bracket, and the other end of the pedal shaft is rotatably coupled with the pedal crank, and the pedal shaft is located on the bracket a side opposite to the sole member and the instep member; wherein the foot member is in the lower state and the instep member is in an upper state, the axis of the pedal shaft is located in the bracket, The instep member and the sole member are coupled to an upper portion of a center of gravity of the mechanism; the length of the instep member in the axial direction of the pedal axis is smaller than that of the sole member The axial length of the axial direction of the foot.

Due to the application of the pedaling scheme A or the pedaling scheme B, the utility model has the following advantages compared with the prior art: since the pedal includes the sole member and the instep member and the bracket, the foot can be stepped on both Between the sole members, the sole members are located on the soles of the feet, the instep members are located on the insteps, and the brackets are located on the inner sides of the feet, so that the foot can be pedaled or the instep can be pulled with force; The sole member is in the lower state, the instep member is in the upper state, and the axis of the pedal shaft is located at an upper portion of the center of gravity of the bracket, the instep member and the sole member coupled to the center of the body, the foot The step itself can maintain the stable balance state of the foot member underneath and the instep member, which is convenient for use; between the foot member and the instep member, The foot member is located on the sole of the foot, the instep member is located on the instep, and the bracket is located on the inside of the foot, because the instep member is on the axis of the pedal axis A length less than said sole member in the longitudinal direction of the pedal shaft axis so that the length of the short block of the instep, may be easily withdrawn from the foot in the foot.

As an improvement of the above-described pedaling scheme A or pedaling scheme B, when one end of the instep member is fixedly coupled to the upper end of the bracket, the fixed coupling mechanism can adjust the instep component in the The angle at which the bracket is fixedly coupled. The force used by the instep is applied to the bracket through the instep member, and the bracket is applied to the pedal shaft, so that the instep member is fixedly coupled to the bracket. Angle, the effect of the force of the instep can be adjusted; since the sole member is located on the sole of the foot during operation, the instep member is located on the instep, and the bracket is located on the inner side of the foot, the instep member is adjusted on the bracket The angle of the fixed joint can be adapted to the instep of different heights, and the position of the contact surface of the instep with the instep member on the instep can also be adjusted.

As an improvement of the above-described pedaling scheme A or pedaling scheme B, when one end of the sole member is fixedly coupled to the lower end of the bracket, The fixedly coupled mechanism can adjust the angle at which the foot member is fixedly coupled on the bracket. The force applied to the sole of the foot is applied to the bracket through the sole member, and the bracket is applied to the pedal shaft, so that the foot member is fixedly coupled to the bracket. Angle, the effect of the force of the sole can be adjusted; since the sole member is located at the sole of the foot during operation, the instep member is located on the instep, and the bracket is located inside the foot, the foot member is adjusted on the bracket The angle of the fixed joint can be adapted to the instep of different heights, and the position of the contact surface of the sole with the sole member can be adjusted at the sole of the foot.

As an improvement of the above-described pedaling scheme A or pedaling scheme B, or a further improvement of the above-described improvement of the pedaling scheme, the bracket is provided with a position and a joint for adjusting the instep member on the bracket A mechanism for the distance between the sole members on the brackets to couple the positions. Since the sole member is located on the sole of the foot when the work is performed, the instep member is located on the instep, and the bracket is located on the inner side of the foot, adjusting the joint position of the instep member on the bracket and the sole member The distance between the coupling positions on the bracket can adjust the height of the foot that can be accommodated between the instep member and the sole member to accommodate the feet of different instep heights.

As an improvement to any of the bicycle schemes described above, the bicycle and animal model are combined to provide a ride-like effect as if riding an animal to enhance the recreational function of the bicycle. In order to achieve the above object, the technical solution adopted is: the animal model is relatively fixed with the position of the connecting rod or the guiding rod, and the animal model is a continuous animal model, and the animal model is total. The length is greater than the distance between the axis of the front wheel and the axis of the rear wheel, the back of the animal model is located above the middle of the frame, and the riding function of the seat is realized by the back of the animal model. The shape and position of the animal model does not hinder the realization of the turning action during riding.

Due to the above-mentioned application of the technical solution combined with the animal model, the utility model has the following advantages compared with the prior art: The animal model provides an image of the animal, and the appearance of the animal model is continuous, rather than several The broken part is composed, so that the animal image provided by the animal model will be more realistic. The total length of the animal model is greater than the distance between the axis of the front wheel and the axis of the rear wheel, and the seat is on the back of the animal model, so that riding on the seat has the effect of riding the animal. If the animal model is too small It is just the decoration of the bicycle. The function of the animal model itself that does not travel is to be provided by the bicycle. The shape and position of the animal model does not hinder the realization of the turning action during riding; the thickness of the animal model is based on the action of the pedals being reciprocated without hindering the riding, and the combined structure does not hinder the existing bicycle traveling function. Play. In this way, when the existing bicycle is combined with the animal model, there is an effect of riding the animal as it is, which enhances the entertainment function of the bicycle.

As an improvement to any of the bicycle solutions described above, an electric drive system can be used instead of the pedal drive to achieve a labor-saving effect. In order to achieve the above object, the technical solution adopted is as follows: an electric drive system is used instead of the pedal drive, and the foot pedal and the pedal crank in the original scheme are removed, and the middle shaft is coupled to the electric drive system through the transmission mechanism through the electric motor. The rotation of the axis in the system drive. As a further improvement, the drive for rotating the wheel and the drive for rotating the central shaft can be separately driven, that is, the central shaft can be separately driven to rotate the seat or the animal model into a combined motion with both translation and rotation. Instead of driving the wheel, the wheel may be driven separately and the seat or the animal model may be stationary relative to the frame, or both.

As an improvement to any of the bicycle solutions described above, the handlebar is pivotally coupled to the connecting rod or the guide rod, and the rotating shaft of the handlebar can change the front wheel The steering shafts in the direction are connected by a flexible shaft. In this way, when riding, the whole body can move relative to the frame to increase the fun; in the case of animal model, the handlebar and the animal model can also be relatively flat and only have relative rotation, avoiding the handlebar and The relative sliding between the animal models can improve the complexity of the model manufacturing caused by the relative sliding.

DRAWINGS

Figure 1 is a perspective view of a bicycle having a crank rocker mechanism on the frame and a crankshaft in the middle shaft;

Figure 2 shows the crankshaft structure and assembly drawing;

Figure 3 is an assembled crankshaft and its assembly diagram on the frame;

Figure 4 is a perspective view of a bicycle having a crank rocker mechanism on the frame and a middle shaft formed by a straight shaft plus an eccentric wheel;

Figure 5 is a structure and assembly diagram of a center shaft composed of a straight shaft and an eccentric wheel;

Figure 6 is an assembled view of the assembled center shaft of the straight shaft plus eccentric wheel on the frame;

Figure 7 is a perspective view of a bicycle having a crank slider mechanism on the frame and a crankshaft in the middle shaft;

Figure 8 is the structure and assembly drawing of the slider slot and the slider; Figure 9 is a perspective view of a bicycle having a crank slider mechanism on the frame and a middle shaft formed by a straight shaft plus an eccentric wheel;

Figure 10 is a perspective view of a bicycle having a crank rocker mechanism on the frame and a crankshaft of the center shaft;

Figure 11 is a perspective view of a bicycle having a crank rocker mechanism on the frame and a center shaft formed by a straight shaft plus an eccentric wheel;

Figure 12 is a perspective view of the pedal according to the pedal embodiment 1;

Figure 13 is a cross-sectional view of the footrest of Figure 12 taken along line A-A;

Figure 14 is an assembly view of the pedal described in the pedal embodiment 1;

Figure 15 is a cross-sectional view taken along line B-B of the footrest shown in Figure 12;

Figure 16 is a perspective view of the pedal according to the pedal embodiment 2;

Figure 17 is a cross-sectional view taken along the line E-E of the pedal bracket shown in Figure 16;

Figure 18 is an assembled view of the pedal described in the pedal embodiment 2;

Figure 19 is a cross-sectional view taken along the line F-F of the pedal bracket shown in Figure 16;

Figure 20 is a perspective view of the bicycle and horse model of the first embodiment;

Figure 21 is a diagram showing the internal structure of the model of the horse;

Figure 22 is a relative position diagram of the bicycle model and the bicycle of the first scheme;

Figure 23 shows the bicycle placed on the bracket in combination with the model of the horse;

Figure 24 is a bracket;

Figure 25 is a horse-shaped fixed fitness entertainment device;

Figure 26 shows the implementation of an electric drive system instead of a pedal drive scheme;

Figure 27 shows an implementation of an improved scheme in which the handlebar pivot is coupled to the connecting rod;

Among them: 1, handlebar; 2, seat; 3, front wheel; 4, rear wheel; 5, frame; 6, pedal; 1, rocker; 8, connecting rod; 9, seat fixing bracket; , the middle shaft; 11, the pedal crank; 12, the connecting rod journal; 13, the shaft diameter hole; 14, the bushing; 15, the bolt; 16, the bolt; 17, the bolt; 18, the bolt; 19, the central shaft crank;

20, middle shaft crank; 21, fixing hole; 22, fixing hole; 23, fixing hole; 24, fixing hole; 25, fixing hole; 26, fixing hole; 27, center shaft diameter; 28 center shaft diameter; , center shaft shaft head; 30 center shaft shaft head; 31, nut; 32, nut; 33, fixing hole; 34 fixing hole; 35, regular octagonal groove; 36, pedal crank; 37, pedal; Bearing cap; 39, bearing cap; 40, bearing housing; 41, bearing housing; 42, straight shaft; 43, fixed hole; 44, fixing hole; 45, fixing hole; 46, fixing hole; 47, fixing hole; Fixed hole; 49, fixed hole; 50, fixed hole; 51, straight shaft bracket; 52, eccentric wheel; 53, bolt; 54, bolt; 55, nut; 56, nut; 57, groove; 58, eccentric wheel seat 59, eccentric wheel cover; 60, slider slot; 61, slider; 62, hinged handle; 63, elongated opening; 64, rocker; 65, guide rod;

66, horse model; 67, seat cushion; 68 75, bolt hole; 76, fixed slot; 77, bracket; 78, frame lower front; 79, bracket beam; 80, bracket column; 81, bracket column; 82, bracket Column; 83, bracket column; 84, bottom plate; 85, bottom plate; 86, the first rear end of the frame; 87, the second rear end of the frame;

101, sole member; 102, instep member; 103, bracket; 104, pedal shaft; 105, fixing column; 106, fixing hole; 107, bracket sole portion; 108, bracket instep portion; 109, guiding groove; Straight edge; 111, through hole; 112, positioning pin; 113, positioning hole; 114, pivot; 115, pivot hole; 116, bushing; 117, foot shaft hole; 118, spring; 119, shaft Ring; 120, collar groove; 121, fixing hole; 122, positioning pin; 123, positioning hole; 124, fixing column; 125, pivot hole; 126, pivot; 127, bushing; 128, guiding groove; , long straight straight edge; 130, motor A; 131, motor B;

132, soft shaft.

detailed description

Embodiment 1 : Referring to the drawings, Embodiment 1 is an embodiment corresponding to the first aspect of the invention and its improvement, and FIG. 1 is a perspective view of the embodiment. A bicycle includes a frame 5, a front wheel 3 disposed at a front lower portion of the frame 5, a rear wheel 4 disposed at a lower rear portion of the frame 5, and a seat seat disposed above a middle portion of the frame 5. 2. A handlebar 1 disposed above the front portion of the frame 5, a center axle 10 disposed below the middle portion of the frame, and a pair of pedal cranks 11 fixedly coupled to the ends of the center axle 10, respectively a pedal crank 36, two pedals 6 and a pedal 37 respectively coupled to the pair of pedal cranks; the central shaft 10 is a crankshaft; a connecting rod 8 and a rocker 7 are provided, the connecting rod 8 - end and The connecting rod journal 12 of the central shaft 10 is rotationally coupled, the other end is hinged to one end of the rocker 7, and the other end of the rocker 7 is hinged to the frame 5; The rod 8, the rocker 7, and the frame 5 constitute a crank rocker mechanism; the position of the seat 2 and the connecting rod 8 is relatively fixed, and the seat 2 is fixed to the connecting rod 8 by the seat fixing bracket 9.

The center shaft 10 is a crankshaft, and its implementation is as shown in FIG. A corresponding middle shaft crank 19 and a middle shaft crank 20 are disposed on the middle shaft 10; a fixing hole 21 for fixing the shaft diameter 12 of the connecting rod, a fixing hole 23, and a fixing hole 25 are provided in the middle shaft crank 19, The shaft crank 20 is provided with a fixing hole 22 for fixing the shaft diameter 12 of the connecting rod, a fixing hole 24, and a fixing hole 26; and two ends of the connecting rod shaft diameter 12 are respectively provided for fixedly coupling with the central shaft crank. The fixing hole 33 and the fixing hole 34 are provided. In assembly, first the connecting rod shaft diameter 12 passes through the shaft diameter hole 13 on the connecting rod 8, and the sleeve 14 is put on; then the bolt 15 passes through the fixing hole 33 and then passes through the fixing hole 21 on the middle shaft crank, with a nut 31 is screwed and fixed, and the bolt 16 on the other side passes through the fixing hole 34, passes through the fixing hole 22 on the crank of the center shaft, and is screwed and fixed by the nut 32. In the above assembly, the shaft diameter 12 of the connecting rod is fixed by the fixing hole 21 and the fixing hole 22 in the middle shaft crank. In this assembly mode, the center shaft 10 is a crankshaft; and the fixing hole 23 and the fixing hole 24 are also passed through the middle shaft crank. To fix the shaft diameter 12 of the connecting rod, the middle shaft 10 is also a crankshaft in this assembly mode, but the effective working crank has a relatively short effective length; the shaft diameter of the connecting rod can also be fixed through the fixing hole 25 and the fixing hole 26 of the middle shaft crank. 12. In this assembly mode, the shaft diameter 12 of the connecting rod is in line with the axis of the central shaft diameter 27 and the central shaft diameter 28, the effective working length of the central shaft crank is 0, and the central shaft 10 corresponds to the straight shaft.

As shown in FIG. 2 and FIG. 3, the shaft head 29 and the shaft head 30 at both ends of the center shaft 10 are shaped cylinders having a regular octagonal cross section, and the end portion of the pedal crank 11 has a regular octagon with a cross section. The octagonal recess 35 in which the shaft head 30 of the cylinder coincides is also provided with an octagonal recess corresponding to the shaft head 29 on the pedal crank 36. The above-mentioned shaft head having a regular octagonal shape is inserted into a corresponding groove in the pedal crank, and is fixed to the bolt 18 by bolts 17, respectively. Further, the shaft head 29 has a pair of parallel faces perpendicular to the longitudinal direction of the center shaft crank 19, and the shaft head 30 has a pair of parallel faces perpendicular to the longitudinal direction of the center shaft crank 20; an octagonal concave on the pedal crank 11 The groove has a pair of parallel faces perpendicular to the length direction of the pedal crank 11, and the octagonal groove on the pedal crank 36 also has a pair of parallel faces perpendicular to the length direction of the pedal crank 36; thus when the pedal crank 36 is When the angle between the center cranks 19 is 180 or 0 degrees, the shaft head 29 and the groove on the pedal crank 36 are just aligned, that is, the shaft head can be inserted into the groove, and the pedal crank 11 and the middle shaft crank 20 are similarly used. When the angle between them is 180 or 0 degrees, the shaft head 30 is just aligned with the groove 35 on the pedal crank 11, that is, the shaft head can be inserted into the groove. Since the cross section of the shaft head 30 and the groove 35 are both regular octagons, when the shaft head 30 is aligned with the corresponding groove 35, the pedal crank 11 is rotated 45 degrees, 90 degrees or 180 degrees around the axis of the center shaft, the shaft The head 30 and the groove 35 are still aligned; similarly, when the shaft head 29 is aligned with its corresponding groove, the pedal crank 36 is rotated by 45 degrees, 90 degrees or 180 degrees about the axis of the center shaft, and the shaft head 29 and its corresponding The grooves are still aligned. Thus, by changing the assembly angle of the pedal crank on the shaft head, the angle between the pedal crank 36 and the pedal crank 11 can be made 0 degree or 180 degrees after the assembly is completed; the pedal crank 36 and the center crank 19 can also be made. The angle between the angle and the pedal crank 11 and the center shaft crank 20 is 180 degrees. The above-described center shaft crank 19 is parallel to the center shaft crank 20.

Figure 3 shows the assembled crankshaft and its mounting on the frame, where the two pedal cranks are parallel and at an angle of 180 degrees to the crankshaft of the center axle. A bearing block 40 and a bearing block 41 are disposed on the frame 5, and the main shaft main shaft diameter 27 is placed on the bearing housing 40, and the bearing cap 38 is covered and then bolted; the main shaft main shaft diameter 28 is placed on the bearing housing 41, and the cover The upper bearing cap 39 is then bolted.

Embodiment 2: Referring to the drawings, Embodiment 2 is an embodiment corresponding to the second aspect of the invention and its improvement, and Fig. 4 is a perspective view of the embodiment. A bicycle includes a frame 5, a front wheel 3 disposed at a front lower portion of the frame 5, a rear wheel 4 disposed at a lower rear portion of the frame 5, and a seat seat disposed above a middle portion of the frame 5. 2. A handlebar 1 disposed above the front portion of the frame 5, a center axle 10 disposed below the middle portion of the frame 5, and a pair of pedals 11 respectively fixedly coupled to the ends of the center axle 10 And a pedal crank 36, two pedals 6 and a pedal 37 respectively coupled to the pair of pedal cranks; the central shaft 10 is formed by a straight shaft 42 provided with an eccentric 52, the eccentric 52 Fixedly coupled with the straight shaft 42; a connecting rod 8 and a rocker 7 are provided, the eccentric wheel 52 is rotatably coupled with the connecting rod 8 end, and the other end of the connecting rod 8 is hinged with one end of the rocking rod 7, the rocker The other end of the 7 is hinged to the frame 5, and the movement characteristics of the mechanism composed of the center shaft 10, the connecting rod 8, the rocker 7 and the frame 5 conform to the motion characteristics of the crank rocker mechanism; The position of the link 8 is relatively fixed, and the seat 2 is fixed to the link 8 via the seat fixing bracket 9.

As shown in FIGS. 5 and 6, the center shaft 10 is constituted by a straight shaft 42 and an eccentric wheel 52. The eccentric wheel 52 is rotatably coupled to one end of the connecting rod 8. The eccentric wheel base 58 and the eccentric wheel cover 59 are provided at the end of the connecting rod 8, and the groove is formed on the opposite surface of the eccentric wheel cover 59 and the eccentric wheel base 58. 57, there is also a corresponding groove on the cylinder surface of the eccentric wheel 58. After the eccentric wheel cover 59 and the eccentric wheel base 58 are relatively closed and bolted, the grooves thereon are also closed to form an annular four groove, and the outer edge of the eccentric wheel 52 is rotatable within the annular four groove. Straight shaft fixing in the middle of the eccentric 52 The frame 51 has a fixing hole for fixing the straight shaft 42 on the straight shaft fixing frame 51. The middle portion of the straight shaft 42 has a square cross section, and has a fixing hole corresponding to the fixing hole on the fixing bracket. The bolt 54 passes through the fixing hole 43 in the straight shaft 42, passes through the fixing hole 45 on the straight shaft fixing frame 51, and then tightens the nut 55; the bolt 53 passes through the fixing hole 44 on the straight shaft 42 and passes through the straight The fixing hole 46 on the shaft fixing frame 51 is then tightened by the nut 56; thus the eccentric wheel is fixedly coupled to the straight shaft 42, and the eccentric distance is the distance between the fixing hole 49 and the center line of the fixing hole 45. The eccentric wheel can also be fixed on the straight shaft 42 through the fixing hole 47 and the fixing hole 48. The eccentricity at this time is the distance between the fixing hole 49 and the center line of the fixing hole 47; the eccentric wheel can also pass through the fixing hole 49 and the fixing hole. 50 is fixed on the straight shaft 42, when the eccentricity is zero.

As shown in FIG. 5 and FIG. 6, the shaft head 29 and the shaft head 30 at both ends of the center shaft 10 are shaped cylinders having a regular octagonal cross section, and the end portion of the pedal crank 11 has a regular octagon with a cross section. The octagonal recess 35 in which the shaft head 30 of the cylinder coincides is also provided with an octagonal recess corresponding to the shaft head 29 on the pedal crank 36. The above-mentioned shaft head having a regular octagonal shape is inserted into a corresponding groove in the pedal crank, and is fixed to the bolt 18 by bolts 17, respectively. Further, the shaft head 29 has a pair of parallel faces which are perpendicular to the crank of the eccentric 52, that is, perpendicular to the perpendicular to the axis of rotation of the eccentric 52 passing through the geometric center of the eccentric. The shaft head 30 has a pair of parallel faces. The crank corresponding to the eccentric wheel 52 is vertical; the octagonal groove on the pedal crank 11 has a pair of parallel faces perpendicular to the longitudinal direction of the pedal crank 11, and the octagonal groove on the pedal crank 36 also has a The parallel faces are perpendicular to the length direction of the pedal crank 36; thus, when the angle between the cranks of the pedal crank 36 and the eccentric 52 is 180 or 0 degrees, the shaft head 29 and the recess on the pedal crank 36 are concave. The groove is just aligned, that is, the shaft head can be inserted into the groove, and when the angle between the crank of the pedal 11 and the eccentric 52 is 180 or 0 degrees, the groove on the shaft head 30 and the pedal crank 11 The 35 is just aligned, ie the shaft head can be inserted into the groove. Since the cross section of the shaft head 30 and the groove 35 are both regular octagons, when the shaft head 30 is aligned with the corresponding groove 35, the pedal crank 11 is rotated 45 degrees, 90 degrees or 180 degrees around the axis of the center shaft, the shaft The head 30 and the groove 35 are still aligned; similarly, when the shaft head 29 is aligned with its corresponding groove, the pedal crank 36 is rotated by 45 degrees, 90 degrees or 180 degrees about the axis of the center shaft, and the shaft head 29 and its corresponding The grooves are still aligned. Thus, by changing the assembly angle of the pedal crank on the shaft head, the angle between the pedal crank 36 and the pedal crank 11 can be made 0 degree or 180 degrees after the assembly is completed; the pedal crank 36 and the eccentric wheel 52 can also be made. The angle between the effective cranks and the angle between the cranks of the pedals 11 and the eccentric 52 are both 180 degrees.

Fig. 6 is an assembled view of the assembled center shaft of the straight shaft plus eccentric wheel on the frame, wherein the two pedal cranks are parallel and the angle of the crank equivalent to the eccentric wheel is 180 degrees. Referring to FIG. 5 and FIG. 6, a bearing housing 40 and a bearing housing 41 are disposed on the frame 5, and a shaft diameter 27 of the central shaft is placed on the bearing housing 40, and the bearing cover 38 is covered and then fixed by bolts; On the bearing housing 41, the bearing cap 39 is covered and then bolted.

Embodiment 3: Referring to the drawings, Embodiment 3 is an embodiment corresponding to the third aspect of the invention and its improvement, and Fig. 7 is a perspective view of the embodiment. A bicycle includes a frame 5, a front wheel 3 disposed at a front lower portion of the frame 5, a rear wheel 4 disposed at a lower rear portion of the frame 5, and a seat seat disposed above a middle portion of the frame 5. 2. A handlebar 1 disposed above the front portion of the frame 5, a center axle 10 disposed below the middle portion of the frame 5, and a pair of pedal cranks respectively fixedly coupled to the ends of the center axle 10, Two pedals respectively coupled to the pair of pedal cranks; the central shaft 10 is a crankshaft; a connecting rod 8 is provided, and one end of the connecting rod is between the connecting rod journal 12 of the central shaft 10 For the rotational coupling, the other end is hinged to the slider 61, and the slider 61 is slidably coupled with a slider groove 60 fixedly coupled to the frame 5, the central shaft 10, the connecting rod 8, the slider 61, and the slider The groove 60 and the frame 5 constitute a crank slider mechanism; the position of the seat 2 and the connecting rod 8 is relatively fixed, and the seat 2 is fixed to the connecting rod 8 by the seat fixing bracket 9.

Figure 8 is a view showing the structure and assembly of the slider groove 60 and the slider 61, wherein the slider 61 is slidable in the corresponding cavity in the slider groove 60. An elongated opening 63 is formed in the bottom of the slider groove 60. When the slider 61 slides in the slider groove, the protruding hinge 62 projecting on the slider 61 slides along the elongated opening 63.

In the present embodiment, the implementation structure and assembly of the center shaft 10 and the two pedal cranks are the same as those described in the first embodiment.

Embodiment 4: Referring to the drawings, Embodiment 4 is an embodiment corresponding to the fourth aspect of the invention and its improvement, and Fig. 9 is a perspective view of the embodiment. A bicycle includes a frame 5, a front wheel 3 disposed at a front lower portion of the frame 5, a rear wheel 4 disposed at a lower rear portion of the frame 5, and a seat seat disposed above a middle portion of the frame 5. 2. A handlebar 1 disposed above the front portion of the frame 5, a center axle 10 disposed below the middle portion of the frame 5, and a pair of pedal cranks respectively fixedly coupled to the ends of the center axle 10, Two pedals respectively coupled to the pair of pedal cranks; the central shaft 10 is formed by an eccentric wheel on a straight shaft, the eccentric wheel is fixedly coupled with the straight shaft; The eccentric wheel is rotatably coupled to one end of the connecting rod, and the other end of the connecting rod 8 is hinged with the slider, and the sliding block is slidably coupled with the sliding slot 60 provided on the frame The movement characteristics of the mechanism composed of the central shaft 10, the connecting rod 8, the slider, the slider slot 60 and the frame 5 are in accordance with the motion characteristics of the crank slider mechanism; the seat 2 and the connecting rod 8 The position is relatively fixed, and the seat 2 is fixed to the link 8 by the seat fixing bracket 9.

In the present embodiment, the implementation structure and assembly of the center shaft 10 and the two pedal cranks are the same as those described in the second embodiment.

In the present embodiment, the implementation of the slider and the slider groove is the same as that described in the third embodiment.

Embodiment 5: Referring to the drawings, Embodiment 5 is an embodiment corresponding to the fifth aspect of the invention and its improvement, and Fig. 10 is a perspective view of the embodiment. A bicycle includes a frame 5, a front wheel 3 disposed at a front lower portion of the frame 5, a rear wheel 4 disposed at a lower rear portion of the frame 5, and a seat seat disposed above a middle portion of the frame 5. 2. A handlebar 1 disposed above the front portion of the frame 5, a center axle 10 disposed below the middle portion of the frame 5, and a pair of pedal cranks respectively fixedly coupled to the ends of the center shaft, two a pedal coupled to the pair of pedal cranks; the central shaft 10 is a crankshaft; a guide rod 65 is provided, and one end of the guide rod and the connecting rod journal 12 of the center shaft 10 are Rotating coupling, the other end is slidably coupled with a rocker 64 hinged on the frame, the middle shaft 10, the guide rod 65, the rocker 64 and the frame 5 constitute a crank rocker mechanism; the seat 2 and the seat The position of the guide rod 65 is relatively fixed, and the seat 2 is fixed to the guide rod 65 by the seat fixing bracket 9.

In this embodiment, the connecting rod 65-end and the connecting rod journal of the center shaft 10 are rotationally coupled, and the connecting manner is the same as that between the connecting rod 8 and the connecting rod journal 12 in the embodiment 1; One end is slidably coupled to a rocker 64 hinged to the frame 5, and the end of the guide rod 65 is inserted into a corresponding cavity of the rocker 64 and piston movement can be performed in the cavity.

Embodiment 6: Referring to the drawings, Embodiment 6 is an embodiment corresponding to the sixth aspect of the invention and its improvement, and Fig. 11 is a perspective view of the embodiment. A bicycle includes a frame 5, a front wheel 3 disposed at a front lower portion of the frame 5, a rear wheel 4 disposed at a lower rear portion of the frame 5, and a seat seat disposed above a middle portion of the frame 5. 2. A handlebar 1 disposed above the front portion of the frame 5, a center axle 10 disposed below the middle portion of the frame 5, and a pair of pedal cranks respectively fixedly coupled to the ends of the center axle 10, Two pedals respectively coupled to the pair of pedal cranks; the central shaft 10 is formed by an eccentric wheel on a straight shaft, the eccentric wheel is fixedly coupled with the straight shaft; and a guide rod 65 is provided. The eccentric wheel is rotatably coupled to the guide rod 65. The other end of the guide rod 65 is slidably coupled with a rocker 64 hinged on the frame. The center shaft 10, the guide rod 65, the rocker 64 and the vehicle The motion characteristics of the frame 5 mechanism are in accordance with the motion characteristics of the crank rocker mechanism; the position of the seat 2 and the guide bar 65 is relatively fixed, and the seat 2 is fixed to the guide bar 65 by the seat fixing bracket 9.

In the present embodiment, the implementation structure and assembly of the center shaft 10 and the two pedal cranks are the same as those described in the second embodiment. The implementation of the one end of the guide rod 65 coupled to the eccentric is the same as the embodiment in which the link 8 and the eccentric 52 are coupled in the second embodiment; the other end is slidably coupled to the rocker 64 hinged to the frame 5, and the end of the guide rod 65 is inserted. The corresponding cavity of the rocker 64 is movable within the cavity.

The following is a detailed description of the specific implementation of the pedal improvement program:

Pedal Example 1 :

See Figure 12, Figure 13, Figure 14, Figure 15. Figure 12 is a perspective view of the pedal embodiment 1 with the footrest fixedly coupled to the bracket, the footrest including the sole member 101, the instep member 102, the bracket 103, and the pedal shaft 104. The bracket 103 includes an upper end and a lower end; one end of the sole member 101 is fixedly coupled to the lower end of the bracket 103; one end of the instep member 102 is fixedly coupled to the upper end of the bracket 103; The footrest member 101 is located on the same side of the bracket 103; the foot shaft 104 is fixedly coupled to the position between the foot member 101 and the instep member 102 of the bracket 103, and the pedal shaft 104 is located on the bracket 103 and the sole of the foot. The opposite side of the member 101 and the instep member 102, the connection between the normal pedal shaft and the pedal crank is fixedly coupled. Since the pedal shaft 104 is fixedly coupled to the bracket 103 in this embodiment, the pedal is used. The coupling between the pedal shaft and the pedal crank is required to be a rotational coupling; in the state where the sole member 101 is lower and the instep member 102 is above, the axis of the pedal shaft 104 is coupled to the bracket 103, the instep member 102 and the sole member 101. The upper portion of the center of gravity of the mechanism; the length of the instep member 102 in the axial direction of the pedal shaft 104 is smaller than the length of the sole member 101 in the axial direction of the pedal shaft 104.

In this embodiment, the coupling between the sole member 101 and the bracket 103 is fixedly coupled, and the fixed coupling mechanism can adjust the coupling angle between the sole member 101 and the bracket 103. A fixing post 105 is disposed at one end of the sole member 101 and the bracket 103. Straight teeth of the same shape are distributed on the cylindrical surface of the fixing post 105, and a fixing hole 106 is formed in the bracket, and the cross-sectional shape of the fixing hole 106 is The fixed column 105 has the same cross-sectional shape. The straight teeth on the fixing post 105 and the straight teeth in the fixing hole 106 are circumferentially fixed. When assembling, the fixing post 105 is inserted into the fixing hole 106, and the two are matched, and the sole member 101 cannot be made relative to the bracket 103. The rotation. Since the straight teeth are hooked, If the fixing post 105 can be inserted into the fixing hole 106 at the current angle, the rotated fixing post 105 can also be inserted into the fixing hole 106 after each rotation of the sole member 101 through an adjacent spur angle, so that the sole member The 101 can be fixed to the bracket at different angles, and can function to adjust the fixed coupling angle between the sole member 101 and the bracket 103. The sole member 102 and the bracket 103 are also fixedly coupled, and the coupling mechanism is the same as the coupling mechanism between the sole member 101 and the bracket 103.

In the present embodiment, a mechanism for adjusting the distance between the joint position of the instep member 102 on the bracket 103 and the joint position of the sole member 101 on the bracket 103 is provided on the bracket 103. The bracket 103 is comprised of two parts, including a bracket sole portion 107 coupled to the sole member 101 and a bracket instep portion 108 coupled to the instep member 102. On the two sides of the bracket instep portion 108, parallel elongated guide grooves 109 are formed opposite to the guide grooves 128 and the openings of the guide grooves on both sides. Ten positioning holes 113 are formed at the bottoms of the guide grooves on both sides and the two sides are positioned. The holes correspond one-to-one; on both sides of the bracket sole portion 107, an elongated straight side 110 and an elongated straight side 129 corresponding to the guiding groove are provided, and the elongated straight side can slide in the corresponding guiding groove . The end portion of the bracket sole portion 107 which slides at one end in the guide groove described at both sides is provided with a cylindrical through hole 111 which communicates the elongated straight sides described on both sides. A positioning pin 112 and a positioning pin 122 are disposed on both sides of the through hole 111, and a spring 118 is disposed between the two positioning pins 112 and the positioning pin 122. The positioning pin 112 and the positioning pin 122 are divided into two sections, and the diameter of the front section is smaller than the diameter of the rear section. The long straight sides of the two sides slide in the corresponding guiding grooves. When the through holes 111 are aligned with the corresponding positioning holes at the bottoms of the two guiding grooves, the positioning pins 112 on both sides are operated by the action of the spring 118. The front section of the positioning pin 122 is springed into the positioning hole, and the rear end of the positioning pin 112 and the positioning pin 122 is caught at the edge of the positioning hole because the diameter thereof is larger than the diameter of the front section, so that the elongated straight side cannot be in the guiding direction. Sliding in the groove plays a role in positioning. When the distance between the joint position of the instep member 102 on the bracket 103 and the joint position of the sole member 101 on the bracket 103 is to be adjusted, the positioning pins 112 on both sides and the front portion of the positioning pin 122 are The positioning hole is pressed back into the through hole 111, and the leg portion 107 of the bracket is slidable relative to the instep portion 108 of the bracket. When the positioning hole and the through hole 111 adjacent to the current positioning hole are slid again, the front portion of the positioning pin is slid. The positioning holes are repositioned, and the above process can be repeated to adjust the distance between the joint position of the instep member 102 on the bracket 103 and the joint position of the sole member 101 on the bracket 103.

Pedal Example 2:

See Figure 16, Figure 17, Figure 18, Figure 19. The embodiment of the present embodiment is different from the pedal embodiment 1 in that the joint between the sole member 101, the instep member 102, the pedal shaft 104 and the bracket 103 in the pedal embodiment 1 is fixedly coupled, and In the embodiment, the joint between the sole member 101, the instep member 102, the pedal shaft 104 and the bracket 103 is rotatably coupled; the other portions are implemented in the same manner as the pedal embodiment 1.

The sole member 101 is pivotally coupled to the bracket 103. A pivot 114 is disposed at one end of the sole member 101 and the bracket 103. The pivot hole 115 corresponding to the pivot 114 is opened on the bracket. The pivot 114 is inserted into the pivot hole 115 and then the sleeve 116 is inserted and the fixing nut is used. Do axial fixation. The foot member 102 and the bracket 103 are also pivotally coupled, and the coupling is implemented in the same manner as the sole member 101 and the bracket 103 are implemented.

The pedal shaft 104 is rotationally coupled to the bracket 103, and a pedal shaft hole 117 corresponding to the pedal shaft 104 is opened on the bracket sole portion 107. A collar 119 is provided at the end of the pedal shaft 104, and the collar 119 functions as an axial fix. A collar groove 120 is formed in the sole portion 107 of the bracket so that the collar 119 is positioned therein without affecting the relative sliding between the instep portion 108 of the bracket and the sole portion 107 of the bracket.

In the technical solution part, in the foot plan A and the foot plan B, the coupling of the sole member and the bracket and the coupling of the instep member and the bracket may be a rotational joint or a fixed joint, and a specific implementation when the joint is rotationally coupled The pedal embodiment 2 is specifically implemented with reference to the pedal embodiment 1 when it is a fixed coupling. In the implementation of the foot plan A and the foot plan B, the outer surface of the instep member and the surface of the sole member which are not in contact with the sole are provided with a protective layer made of a relatively soft material such as rubber, sponge or the like; The foot hit the leg.

In the pedal embodiment 1 and the pedal embodiment 2, the non-slip strips may be provided on the surface of the sole member 1 in contact with the sole of the sole; the side of the instep member 2 in contact with the instep may be provided with a relatively soft material such as soft rubber. Protective pads made of sponges, etc., to increase the comfort of the instep; these improvements are within the scope of this patent.

The pedal embodiment 1 and the pedal embodiment 2 have the following advantages. When the user does not want to use the instep, the pedals of the instep member 102 and the instep portion 108 of the bracket can be removed, and the disassembly and assembly is also convenient.

The use of the foot pedal described in the present invention in a two-legged mechanical or fitness device or entertainment device is also within the scope of this patent.

The implementation of the bicycle and animal model described in this patent is described in detail below: Referring to the drawings, FIG. 20 is a perspective view of the bicycle and horse model of the first embodiment; wherein the back of the model 66 of the horse is located above the middle of the frame 5 and is provided with a cushion 67 thereon. The back of the model 66 of the horse implements the riding function of the seat. The diameter of the front wheel 3 is relatively small, smaller than the diameter of the rear wheel 4, which can give the horse's model 66 a larger space, so that the model can be made larger and more image-free, so as not to be limited by the model when turning. The shape and position of the model 66 of the horse does not hinder the realization of the turning action during riding, and the thickness of the model 66 of the horse does not hinder the realization of the reciprocating stepping of the feet when riding. The length of the model 66 of the horse is greater than the distance between the axis of the front wheel 3 and the axis of the rear wheel 4. The posture of the model 66 of the horse is the posture of the horse when it is running forward, which can enhance the riding horse while riding. Effect.

The model 66 of the horse consists of two symmetrical left and right parts. The internal structure is shown in Fig. 21, and the relative position to the frame 5 is as shown in Fig. 22. The left side portion of the model 66 of the horse is located on the left side of the frame 5, and the right side portion is located on the right side of the frame 5. The two portions are aligned and closed along the edges, sandwiching the vehicle body, as shown by the hatching in Figs. 21 and 22. The part is the contact surface of the horse model 66 when the two parts are closed and closed. The model of the closed horse 66 is a continuous whole in appearance. There are bolt holes 68 75 in the range of the left and right contact faces of the model 66 of the horse. After the model is closed, the bolt holes on both sides of the model are connected together. The bolts are bolted through the bolt holes to lock the two parts of the model. One whole. The model of the horse 66 has a fixing groove 76 on the inner contact surface, and the fixing groove 76 on both sides clamps the seat fixing bracket 9, and functions to fix the horse's model 66 on the connecting rod 8. The bicycles mentioned in Scheme 2, Scheme 3, Scheme 4, Scheme 5 and Scheme 6 can be combined with the horse model in the same way as above; they can also be replaced by models of other animals such as: dolphins, fish, deer, leopards, tigers, etc. Horse model.

After the bicycle and the animal model described in the first to sixth embodiments are combined, the lower rear end of the frame 5 is placed on the bracket 77, which can be used as a fitness and entertainment device fixed in place, see Fig. 23, Fig. 24; 77 functions to stably support the frame and to suspend the rear wheel 4.

The bicycle of the first aspect to the sixth embodiment or the bicycle combined with the animal model, the front wheel and the rear wheel are removed, and the frame is fixed to stably support the frame without affecting the On the bicycle, the movable part is moved on the support; after such improvement, the bicycle can be used as a fitness entertainment device in a fixed position. Specific implementation method: Referring to FIG. 25, after combining the bicycle and the horse model described in the first embodiment, the front wheel 3 and the rear wheel 4 are removed; the function of the bracket is realized by two parts, and the first part is provided by the bottom plate 84. The vertical fixing bracket column 80 and the bracket column 81 are fixedly coupled to the upper end of the bracket column 80 and the bracket column 81, and the lower front end 78 of the vehicle is fixed on the bracket beam 79; the second portion is vertically fixed by the bottom plate 85. And the bracket column 82, the first rear end 86 of the frame is fixed to the upper end of the bracket upright 82, and the second rear end 87 of the frame is fixed to the upper end of the bracket upright 83.

The implementation of the electric drive system instead of the pedal drive scheme will be described below. The foot pedal and the pedal crank described in the original scheme are removed, and the center shaft is coupled to the electric drive system through a transmission mechanism, and the rotation of the center shaft is driven by the electric system. The electric drive system consists of a power supply, a motor, a control unit and a transmission. Referring to FIG. 26, in the embodiment, the electric drive system is provided with two motors fixed between the center shaft 10 and the rear wheel 4, and the battery and the control board are fixed between the two motors, wherein the motor A 130 passes through the chain transmission mechanism. The switch that controls the start and stop of the motor A is disposed on the left side of the handlebar; the motor B 131 is coupled to the rear wheel through a chain drive mechanism, and the switch that controls the start and stop of the motor B is disposed on the right side of the handlebar. In this way, the motor A is turned on, the motor B is turned off, and the motor can be oscillated on the model 66 of the horse. The motor A and the motor B can also be started at the same time, so that the motor can be oscillated while sitting on the model 66 of the horse, as the horse travels, and the like. Interesting.

As shown in FIG. 27, an embodiment of the improved embodiment in which the handlebar pivot is coupled to the connecting rod, and the bicycle of the first embodiment is pivotally coupled to the connecting rod 8 as an example. The rotation shaft of the handlebar 1 and the steering shaft that can change the direction of the front wheel 3 are connected by a flexible shaft 132. In this way, when riding, the whole body can move relative to the frame to increase the fun; in the case of animal model, the handlebar and the animal model can also be relatively flat and only have relative rotation, avoiding the handlebar and The relative sliding between the animal models can improve the complexity of the model manufacturing caused by the relative sliding.

Claims

Rights request

A bicycle including a frame [5], a front wheel [3] disposed at a front lower portion of the frame [5], a rear wheel [4] disposed at a lower rear portion of the frame [5], and disposed at a seat [2] above the middle portion of the frame [5], a handlebar [1] disposed above the front portion of the frame [5], and disposed under the middle of the frame [5] a central axis [10], a pair of pedal cranks [11] fixedly coupled at both ends of the central shaft [10], and two pedals respectively coupled to the pair of pedal cranks [11] [6] The central axis [10] is a crankshaft; a connecting rod [8] and a rocker [7] are provided, and one end of the connecting rod [8] and the connecting rod shaft of the central shaft [10] a rotation connection between the necks [12], the other end of the link [8] is hinged to one end of the rocker [7], and the other end of the rocker [7] is hinged to the frame [5]; The central axis [10], the connecting rod [8], the rocker [7], and the frame [5] constitute a crank rocker mechanism; the position of the seat [2] and the connecting rod [8] is relatively fixed.

2. A bicycle comprising a frame [5], a front wheel [3] disposed at a front lower portion of the frame [5], a rear wheel [4] disposed at a lower rear portion of the frame [5], and disposed at a seat [2] above the middle portion of the frame [5], a handlebar [1] disposed above the front portion of the frame [5], and disposed under the middle of the frame [5] The central axis [10], a pair of pedal cranks [11] fixedly coupled at both ends of the central shaft [10], and two pedals respectively coupled to the pair of pedal cranks [11] [6] The central axis [10] is composed of an eccentric wheel [52] provided on the straight shaft [42], and the eccentric wheel [52] is fixedly coupled with the straight shaft [42]; a rod [8] and a rocker [7], the eccentric wheel [52] is rotationally coupled to the connecting rod [8], the other end of the connecting rod [8] and one end of the rocker [7] Hinged, the other end of the rocker [7] is hinged on the frame [5], and is composed of the central shaft [10], the connecting rod [8], the rocker [7] and the frame [5] The motion characteristics of the mechanism are exactly the same as those of the crank rocker mechanism; the seat [2] and the connecting rod [8] Relatively fixed position.

3. A bicycle comprising a frame [5], a front wheel [3] disposed at a front lower portion of the frame [5], a rear wheel [4] disposed at a lower rear portion of the frame [5], and being disposed at a seat [2] above the middle portion of the frame [5], a handlebar [1] disposed above the front portion of the frame [5], and disposed under the middle of the frame [5] The central axis [10], a pair of pedal cranks [11] fixedly coupled at both ends of the central shaft [10], and two pedals respectively coupled to the pair of pedal cranks [11] [6] ], characterized in that: the central axis [10] is a crankshaft; a connecting rod [8] is provided, and the connecting rod [8] is connected to the connecting rod journal [12] of the central shaft [10] The other end of the connecting rod [8] is hinged with the slider [61], and the slider [61] is slidably coupled with the slider slot [60] fixedly coupled to the frame [5]. The central axis [10], the connecting rod [8], the slider [61], the slider slot [60] and the frame [6] constitute a crank slider mechanism; the seat [2] and the The position of the connecting rod [8] is relatively fixed.

4. A bicycle comprising a frame [5], a front wheel [3] disposed at a front lower portion of the frame [5], a rear wheel [4] disposed at a lower rear portion of the frame [5], and disposed at a seat [2] above the middle portion of the frame [5], a handlebar [1] disposed above the front portion of the frame [5], and disposed under the middle of the frame [5] The central axis [10], a pair of pedal cranks [11] fixedly coupled at both ends of the central shaft [10], and two pedals respectively coupled to the pair of pedal cranks [11] [6] The central axis [10] is composed of an eccentric wheel [52] provided on the straight shaft [42], and the eccentric wheel [52] is fixedly coupled with the straight shaft [42]; a rod [8], the eccentric wheel [52] is rotationally coupled to the connecting rod [8], and the other end of the connecting rod [8] is hinged with a slider [61], the slider [61] and The slider slot [60] fixedly coupled to the frame [5] is slidably coupled by the central shaft [10], the connecting rod [8], the slider [61], the slider slot [60], and the vehicle The motion characteristics of the frame [5] are exactly the same as those of the crank slider mechanism; the seat [2] The position of the connecting rod [8] is relatively fixed.

5. A bicycle comprising a frame [5], a front wheel [3] disposed at a front lower portion of the frame [5], a rear wheel [4] disposed at a lower rear portion of the frame [5], and disposed at a seat [2] above the middle portion of the frame [5], a handlebar [1] disposed above the front portion of the frame [5], and disposed under the middle of the frame [5] The central axis [10], a pair of pedal cranks [11] fixedly coupled at both ends of the central shaft [10], and two pedals respectively coupled to the pair of pedal cranks [11] [6] The central axis [10] is a crankshaft; a guide rod [65] is provided, and the guide rod [65] is connected to the connecting rod journal [12] of the central shaft [10] The other end of the guide rod [65] is slidably coupled with a rocker [64] hinged on the frame [5], the central shaft [10], the guide rod [65], and the rocker The block [64] and the frame [5] constitute a crank rocker mechanism; the position of the seat [2] and the guide bar [65] is relatively fixed.

6. A bicycle comprising a frame [5], a front wheel [3] disposed at a front lower portion of the frame [5], a rear wheel [4] disposed at a lower rear portion of the frame [5], and disposed at a seat [2] above the middle portion of the frame [5], a handlebar [1] disposed above the front portion of the frame [5], and disposed under the middle of the frame [5] a central axis [10], a pair of pedal cranks [11] fixedly coupled at both ends of the central axis [10], respectively The pedal [6] on a pair of pedal cranks [11] is characterized in that: the central shaft [10] is constituted by an eccentric wheel [52] provided on a straight shaft [42], and the eccentric wheel [52] ] fixedly coupled to the straight shaft [42]; provided with a guide rod [65], the eccentric wheel [52] is rotatably coupled to the guide rod [65], and the other end of the guide rod [65] Slidingly coupled with a rocker [64] hinged on the frame [5], the movement characteristics of the mechanism of the central shaft [10], the guide rod [65], the rocker [64] and the frame [5] The motion characteristics of the crank mechanism are exactly the same; the position of the seat [2] and the guide [65] is relatively fixed.

7. A bicycle according to any one of claims 1 to 6, wherein: the electric drive system is used in place of the pedal drive, and the pedal and pedal crank are removed, the central axle [10] ] coupled to the electric drive system via a transmission mechanism.

The bicycle according to any one of claims 1 to 6, characterized in that: the handlebar [1] is pivotally coupled to the connecting rod [8] or the guide rod [65] On the upper side, the rotation axis of the handlebar [1] is connected to the steering shaft which can change the direction of the front wheel [3] through the flexible shaft [132].

9. A bicycle according to any one of claims 1 to 6, wherein: the electric drive system is used in place of the pedal drive, and the pedal and pedal crank are removed, the central axle [10] Connecting to the electric drive system via a transmission mechanism, the handlebar [1] is pivotally coupled to the connecting rod [8] or the guide rod [65], the handlebar [1] The axis of rotation is coupled to the steering shaft that causes the front wheel [3] to change direction via a flexible shaft [132].

10. Bicycle according to any one of claims 1 to 6, characterized in that the position of the animal model [66] and the connecting rod [8] or the guiding rod [65] is relatively fixed, the animal The model [66] can be synchronized with it, the animal model being a continuous-looking animal model, the total length of the animal model being greater than the distance between the axis of the front wheel and the axis of the rear wheel, the back of the animal model Located above the middle of the frame, the ride function of the seat is achieved by the back of the animal model.

TRANSLATION IN CN

INTERNATION SEARCH REPORT International Search Report

SUBSTITUTE SHEET (RULE 26) Replacement Page (Article 26)

SUBSTITUTE SHEET (RULE 26 ISA/CN) Replacement Page (Rule 26;) ISA/CN

AMENDED SHEET (ARTICLE 19) Revision Page (Article 19 of the Treaty)

STATEMENT UNDER ARTICLE 19 (1) Statement of Article 19(1) of the Treaty

RECTIFIED SHEET (RULE 91) Correction page (Article 91)

RECTIFIED SHEET (RULE 91 ISA/CN) Correction Page (Rule 91) ISA/CN

RECTIFIED SHEET (RULE 91 RO/CN) Correction Page (Rule 91); RO/CN

CONFIRMATION COPY Confirmation