CN201046753Y

CN201046753Y - Device for lengthening treadle force arm by employing bicycle pedal leading edge

Info

Publication number: CN201046753Y
Application number: CNU2007201481786U
Authority: CN
Inventors: 赵俊德
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-06-06
Filing date: 2007-06-06
Publication date: 2008-04-16
Anticipated expiration: 2017-06-06

Abstract

The utility model relates to a device for lengthening the pedaling arm of force by using the front edge of the bicycle pedal, belonging to the technical field of transportation, which comprises a jack, a jack base, a toothed ring, a spring, a pedal shaft and a pedal; wherein, the jack is arranged on the pedal shaft close to the shaft stop, the toothed ring is arranged inside the pedal, or the toothed ring is also arranged on the pedal shaft close to the shaft stop, and the jack is also arranged inside the pedal. In prior art, the device for saving labor used to ride bicycles by means of lengthening the arm of force practically all change the riding habits of people with the feet pedaling at a constant speed circularly, symmetrically and intermittently, thus the efficiency is lowered. The utility model is characterized in that: the relative position between the pedal and a crank handle is fast locked at a specific moment, and the arm of force, formerly from a center shaft to the pedal shaft, is extended to a distance spanning from the center shaft to the front edge of the pedal, and thus the arm of force is prolonged. By adjusting the locking angle of the pedal, the pedaling force can be led to the tangent direction of pedaling circle, so as to improve the efficiency and tap the potential of feet. On the strength of the flywheel principle, a jack and a toothed ring are respectively arranged on the pedal shaft and pedal for locking the relative position between the pedal and the crank handle. The utility model has an advantage of enhancing the performance of the bicycles.

Description

Utilize bicycle pedal forward position lengthening to scrunch the device of the arm of force

Technical field

Utilize bicycle pedal forward position lengthening to scrunch the device of the arm of force, belong to traffic and transport field.

Background technology

The bicycle pedal force arm is long more laborsaving more, recognize the device of the at present existing lengthening arm of forces but all too complicated by patent retrieval, some device as telescopic, add the pipe nipple formula and all changed people and scrunch bicycle both feet at the uniform velocity circumference, left-right symmetric custom intermittently, destroy the human engineering optimum regime people is done not feel like oneself, reduced the efficient of riding.

Summary of the invention

The purpose of this utility model is exactly in order to solve above-mentioned deficiency.Usually bicycle middle shaft is exactly an arm of force length to the distance of pedal shaft, pedal is the cuboid that there is axle a centre, so a length is just arranged to the pedal edge from pedal shaft, if it is sometime such as pedal plane and the basic being aligned of crank position the time that pedal and the locking of crank relative position is motionless, arm of force length will be extended for bicycle middle shaft to the pedal forward position from original bicycle middle shaft to pedal shaft so, thereby realize the purpose of the lengthening arm of force.

Can utilize to achieve these goals that monodirectional locking principle very heavy and ring gear is provided with very heavy and ring gear in the prior art flywheel between pedal and pedal shaft, referring to accompanying drawing.Mainly by very heavy, topping bracket, ring gear, spring, pedal shaft, pedal, form, it is characterized in that: near on the position of axle bumper topping bracket is set at pedal shaft, admittance has very heavy in the topping bracket, pedal inboard when pedal shaft carrying very heavy be assembled to pedal after can with very heavy position of matching on ring gear is set, this device also can have another kind of form it is characterized in that: near on the position of axle bumper ring gear is set at pedal shaft, pedal inboard when pedal shaft is carrying ring gear to be assembled to pedal after can with position that ring gear matches on topping bracket is set, admittance has very heavy in the topping bracket.These two kinds of base models of device only are that the simple position of major parts such as very heavy and ring gear is exchanged, and specified features such as inventive concept that it is total and action principle, basic structure shape, purposes effect are all identical.Mainly to be provided with very heavy on the ring gear pedal shaft be that example is illustrated to be provided with on the pedal for simple and direct this paper, and referring to Figure of

description

1,2, another kind is omitted.

Pedal rotates to the front upper place from the back lower place during work, obtain the support of unidirectional force during the very heavy tooth step place that is slipped on the ring gear when entering the stage of scrunching, also obtained the support of power according to flywheel principle of work ring gear, captive joint with ring gear because of pedal again and be integral, so the pedal forward position has equally also obtained the support of unidirectional force, there is a distance pedal forward position and very heavy position, so realized scrunching the purpose of arm of force lengthening.Break away from the stage that scrunches and very heavyly enter the slip teeth phase and finish a single-legged exercise cycle when pedal is rotated further, another pin symmetry action situation is identical, and this device has the branch of bicycle left and right sides usage.

The effect that the utility model is compared with prior art useful is simple and practical effective, and does not change people's both feet circumference, left-right symmetric custom intermittently at the uniform velocity by bike, does not destroy the human engineering optimum regime and just can reach to extend and scrunch arm of force labour-saving effect by bike.Locked again after pedal has had an initial elevation angle in addition, device also can be guided the power of scrunching into foot's potential that round tangential direction improves the degree of utilization exploit person of power so.

Description of drawings

Fig. 1,2,3, the 4th, structural representation: pedal shaft 1 among Fig. 1, very heavy 2, spring 3, topping bracket 4, pedal 5, ring gear 6 among Fig. 2, pedal shaft 7, ring gear 8 among Fig. 3, pedal 9 among Fig. 4, very heavy 10, spring 11, topping bracket 12.This figure is identical being omitted of bicycle left side structural representation right side symmetry.Fig. 1, the 2nd, a kind of form of device, another kind is Fig. 3,4.

The specific embodiment

Implement the utility model and all can adopt prior art simple, existing is that example is illustrated with accompanying

drawing

1,2, accompanying drawing 3,4 similar being omitted.Near the position of axle bumper topping bracket 4 is set on pedal shaft 1, an oval groove is arranged in this seat, admittance has and is very heavy 2 heads of oval shape in the groove, and spring 3 two ends contact very heavy 3 and topping bracket 4 respectively.In very heavy form and the flywheel that is arranged on the pedal shaft very heavy be provided with similar.On the inboard positions of pedal 5, ring gear 6 is set near the axle bowl, the position of ring gear should guarantee when the pedal shaft band very heavy be assembled to pedal after very heavy can the cooperation with it.Other part-structure shapes of pedal and pedal shaft etc. can adopt prior art.

In the device the very heavy number of teeth that the tooth group number of quantity, ring gear, every group of tooth are set can be one also can be a plurality of, a plurality of advantages be can be meticulous adjusting adapt to rising of people and step on a little, can increase the cost manufacturing process too much and also be difficult to realize.Arc surface on the ring gear is to establish for the people needs " falling to take turns " by bike sometimes.

Device can utilize pedal shaft screw thread and crank to be connected and fixed routinely and be integral, if notice that this moment, the very heavy strong point was not inconsistent with stepping on a little of people, can connect by shimming on screw thread again.So pad is that the part of using always is again to select for use product this paper not relate to.This device has the branch about bicycle in addition, and left-right symmetric is identical.

Claims

1. utilize bicycle pedal forward position lengthening to scrunch the device of the arm of force, be loaded on bicycle pedal axle and the pedal and use, mainly by very heavy, topping bracket, ring gear, spring, pedal shaft, pedal, form, it is characterized in that: near on the position of axle bumper topping bracket is set at pedal shaft, admittance has very heavy in the topping bracket, pedal inboard when pedal shaft carrying very heavy be assembled to pedal after can with very heavy position of matching on ring gear is set, this device also can have another kind of form it is characterized in that: near on the position of axle bumper ring gear is set at pedal shaft, pedal inboard when pedal shaft is carrying ring gear to be assembled to pedal after can with position that ring gear matches on topping bracket is set, admittance has very heavy in the topping bracket.

2. according to the described device that utilizes bicycle pedal forward position lengthening to scrunch the arm of force of claim 1, it is characterized in that: ring gear is formed jointly by tooth and arc surface.

3. according to the described device that utilizes bicycle pedal forward position lengthening to scrunch the arm of force of claim 1, it is characterized in that: can have one group of tooth that many groups also can be arranged on the ring gear, every group of number of teeth can be one and also can be a plurality of.

4. according to the described device that utilizes bicycle pedal forward position lengthening to scrunch the arm of force of claim 1, it is characterized in that: device can be provided with a secondary very heavy topping bracket and how secondaryly also can be.