CN2419144Y - exercise bike - Google Patents

Abstract

A sports body-building vehicle comprises a frame, which is provided with a front wheel and a handle for operating the front wheel, and is provided with two rear wheel shafts. The two rear wheels are respectively fixed on the rear wheel shaft and are respectively driven by two one-way ratchets. In the two pedal sets, each pedal set has a central portion pivotally mounted on a pivot rod of the frame. The two chains respectively pass around the two ratchet wheels and are provided with two ends and fixed on the pedal rod group. When the speed of the rear wheel is different, the utility model discloses turn that can be very easy. And has the advantages of safety, stability and easy control.

Description

exercise bike

The utility model relates to a body-building apparatus, in particular to a sports body-building vehicle with two pedal-type driving mechanisms, which can drive the two rear wheels respectively.

Nowadays people use sports equipment to keep fit and have become more and more popular. Traditional exercise equipment such as treadmills and exercise bikes are indoor exercises and rather dull. Therefore, outdoor cycling and tricycle sports are also becoming more and more popular.

When it comes to bicycles, not everyone can ride them. Basically, a tricycle is easier, safer and more stable than a bicycle. For those who are not suitable for cycling or who cannot ride a bicycle (such as children, elderly people, infirm patients, etc.), riding a tricycle seems to be a better exercise than cycling.

A typical tricycle includes a front wheel and two rear wheels, and these two rear wheels are fixed on a rear wheel axle and rotate with the rear wheel axle. The traditional tricycle has a single rotary driving mechanism for driving the rear wheel shaft, so that the two rear wheels are synchronously driven by the single driving mechanism. Since there is not any differential gear set on the rear axle, this tricycle has the problem that it is not easy to turn when turning left or right.

The main purpose of the utility model is to provide an exercise bike, which has two pedal-type driving mechanisms, so that the rear wheels can be driven separately, and the turning is easier.

The second object of the present invention is to provide an exercise bike, which is respectively driven by two pedal-shaped driving mechanisms, so that the effect of repeated up and down pedaling can be achieved, and the upper body of the user can be kept upright.

The purpose of this utility model is achieved by the following technical solutions.

An exercise bike, characterized in that it includes a frame, two rear wheels, and two pedal-type driving mechanisms, wherein: the frame includes a front section, the front section has a front wheel and a handle for manipulating the front wheel , and has a rear section, the rear section is provided with two rear axles; the two rear wheels are respectively fixed on the rear axle; the two pedal-type driving mechanisms are used to drive the rear wheels respectively; each of the A driving mechanism includes: a one-way ratchet, which is fixed on the rear axle; a pedal set, which has a central portion pivoted on a pivot of the vehicle frame, and the pedal set has a first end And a second end; a pedal, which is fixed on the first end of the pedal set; a chain, which is around the ratchet and has a first end fixed on the predetermined position of the pedal set, and a The second end is firstly connected with an elastic element and then fixed to the second end of the step bar set, and by means of the chain, the step bar can drive the rear wheel and the ratchet.

The utility model has two pedal-type driving mechanisms, which can drive the rear wheels separately, and make turning easier; and are respectively driven by two pedal-shaped driving mechanisms, so that the effect of repeating up and down pedaling movements can be achieved, and the The upper body of the user remains upright.

The purpose of this utility model can also be further realized by the following technical measures.

In the aforementioned exercise bike, the elastic element is a spring.

In the aforementioned exercise bike, the step bar set is L-shaped, and the predetermined point is located between the central portion and the second end of the step bar set.

In order to further understand the technical content, characteristics and effects of the present utility model, the following preferred embodiments are exemplified, and detailed descriptions are as follows in conjunction with the accompanying drawings:

Fig. 1 is a perspective view of the utility model.

Fig. 2 is a plan view of the second half of the utility model.

Fig. 3 and Fig. 4 are the action diagrams of the utility model.

Please refer to Fig. 1 and Fig. 2, the utility model comprises: a vehicle frame 10, it comprises a front section 11, and this front section 11 has a front wheel 12 and a handle 13 for manipulating this front wheel 12, and has a rear section 14, the rear section 14 is provided with two rear axles 15.

Two rear wheels 20 are fixed on the rear axle 15 respectively.

Two stepping driving mechanisms 30 are used to drive the rear wheels 20 respectively. When the two rear wheels 20 are driven by the two driving mechanisms 30 at different speeds, the utility model can satisfy the required differential speed ratio of the wheels when turning as an exercise bike.

Regarding the two drive mechanisms 30, each drive mechanism 30 includes: a one-way ratchet 31, which is fixed on the rear wheel shaft 15; an L-shaped pedal set 32, which has a central portion 321 pivotally mounted on On a pivot 16 of the vehicle frame 10, and the pedal set 32 has a first end 322 and a second end 323; a pedal 33, which is fixed on the first end 322 of the pedal set 32; Chain 34, it is to go around this ratchet wheel 31 and has a first end 341 and is fixed on the predetermined position of this pedal bar group 32, and a second end 342 connects an elastic member 35 (such as a spring) first and is fixed on this The second end 323 of the step bar set 32 and the chain 34 enable the step bar 32 to drive the rear wheel 20 and the ratchet wheel 31 .

The operating principle of the present utility model is: as shown in Figure 3, when the user's foot steps on the pedal 33, the pedal bar group 32 will rotate to the pivot bar 16, and the elastic element 35 will be stretched to become Long (storage energy). The user lifts the foot, as shown in FIG. 4 , the elastic element 35 will return to its original shape (release energy), and the pedal 33 will move up. At this moment, the chain 34 will drive the one-way ratchet 31 to rotate, and then drive the rear wheel to rotate. Therefore, the tricycle is advanced by this repeated stepping. This method is completely different from the traditional rotation method.

The utility model can achieve the motion of stepping up and down repeatedly, and the upper body of the user remains upright (similar to walking). However, when doing this kind of exercise, the user's head, neck and waist (especially the spine) are generally kept upright, so the possibility of spinal injury can be greatly reduced.

Please note that the two pedal sets 32 respectively drive the two rear wheels 20 , therefore, the two rear wheels 20 can be driven by the two driving mechanisms 30 respectively. Because the two rear wheels 20 can have different speeds, the utility model can turn left or right easily. In addition, this chain 34 and ratchet 31 can be modified into equivalent belts and pulleys.

Therefore, the exercise bike of the present utility model has two pedal-type driving mechanisms, so that the rear wheels can be driven separately, and it is easy to turn. Therefore, the utility model has the advantages of safety, stability and easy control.

Claims (3)

1, a kind of sport and body-building car is characterized in that, comprises a vehicle frame, two trailing wheels, two override type driver trains, wherein:

Described vehicle frame comprises a leading portion, and this leading portion has a front-wheel and in order to controlling this front-wheel handle, and has a back segment, and this back segment is provided with two hind axles;

Described two trailing wheels are to be individually fixed on this hind axle;

Described two override type driver trains are in order to drive this trailing wheel respectively;

Described each driver train comprises: (a) single direction ratchet, and it is to be fixed on this hind axle; (b) a treadle group, it has a central portion and is hubbed on the hinged arm of this vehicle frame, and this treadle group has one first end and one second end; (c) pedal, it is to be fixed on first end of treadle group; (d) chain, it is to walk around this ratchet and have one first end to be fixed on the desired location of this treadle group, reach one second end elder generation connection one elastic element and be fixed in second end of this treadle group again, and, make this treadle can drive this trailing wheel and this ratchet by this chain.

2, sport and body-building car according to claim 1 is characterized in that, described elastic element is a spring.

3, sport and body-building car according to claim 1 is characterized in that, described treadle group is L shaped, and this predetermined point is between second end of this central portion and treadle group.

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