JPH04114895U - Transmission mechanism of multi-purpose bicycle - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a transmission mechanism that causes the pedals of a bicycle, etc. to perform crank rotational motion, lever type motion, or lever type motion. [Configuration] Consists of a pair of unidirectional cranks, a set of control parts, a set of alternating movement parts, and a set of chain wheel fixed plates, slide lock plates, slide lock plates, etc. that rotate with the main shaft. . The slide lock board is
Depending on the control unit, it is coupled to the alternating disc of the alternating movement unit, coupled to the chain wheel fixed disc, or in a free state in which it is not coupled to any of them. [Effect] When the slide lock plate is combined with the alternating disk, the pedals can be moved vertically using a lever, and when combined with the chain wheel fixed plate, the pedals can be moved using a crank rotation type, and when in the free state, the pedals on both sides are in the same position. When it is in , it rotates all at once, moves up and down at the same time in a lever-like motion, the two sides alternately rotate, the two sides move up and down in a lever-like manner, one side rests and the other side rotates, one side rests and the other side moves in a lever-like manner. be able to.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is related to the transmission mechanism of multi-purpose bicycle, and its main purpose is to provide a variety of Provides a variable pedal system, thereby improving motor skills and increasing user interest. Its characteristic is to aim for improvement.

0002

[Problems to be solved by conventional techniques and ideas]

The current power transmission system for regular two-wheeled or three-wheeled bicycles and indoor fitness vehicles is based on crank rotation. type transmission system and lever transmission system (for example, U.S. Pat. No. 4,574,649 There are only two types (see specification), each with its own advantages and disadvantages. crank rotary car In other words, when you step on the pedal, the blind spot is exceeded (i.e., the crank pedal presses down on the top of the pedal). ) is relatively difficult and takes a lot of force, and circular pedal movements are too monotonous. It has disadvantages such as: Next, lever-type cars have vertical intersection motion, so there are no blind spots and there is no pedal movement. Since the height and distance of the scraps can be adjusted freely, there are fewer drawbacks of monotony, but the vertical conversion is possible. It has the disadvantage of point inertia loss.

0003

[Means to solve the problem]

Therefore, the inventor of this project continued his research based on this, and as a result, some bicycles ( With a transmission system that has three types of changes, the control level can be adjusted according to individual preference. Select the pedal method by pulling the bar, and use it to achieve the best efficiency of marching and its luck. Its distinctive feature is that it diversifies its movement methods, increases the movement effect, and prevents it from being monotonous. do.

0004 The transmission method of the present invention includes: 1. Move forward with lever-type transmission and vertical pedaling, and the height and low distance of the pedal stroke can be adjusted according to your preference. You can freely adjust the conversion as you like, and it is very comfortable and fun, just like a human walking. It is relatively labor-saving and has no blind spots.

[0005] 2. Crank rotation type transmission has the advantages of considerable vehicle speed and acceleration.

[0006] 3. Both pedals can be operated independently, optionally with lever or crank rotation transmission, e.g.: You can turn the crank at the same angle with both feet at the same time. You can rest one foot and crank or lever pedal with the other. Alternate lever-type petering with both feet that allows you to petal with normal crank rotation. It has the advantage of multi-type selection, such as being able to

[0007] The above-mentioned bicycle or indoor fitness car has the functionality of a single car that can rival three bicycles. It is economical, efficient, interesting, and motile, making it easy for both men and women of all ages to enjoy. This is truly a revolutionary contribution to the bicycle industry.

[0008]

【Example】

This article is intended to help you further understand and understand the structure, functions, and characteristics of this invention. Here, one embodiment will be described below with reference to the drawings.

[0009] Referring to the attached drawings, it can be seen that the present invention can be used for general bicycles or lever-type bicycles. The biggest difference from cars is that the crank 1 of the present invention is equipped with a unidirectional bearing 2, and the crank Simply rotate the main shaft 3 in one fixed direction with the The large chainwheel 4 is fixed to the main shaft 3 and rotates in one direction with the main shaft 3. None, and the chain 5 is used to drive and rotate the rear wheel shell.

0010 Referring to the attached drawings, the main shaft 3 is the main shaft fitting tube 6 of the car frame. The main shaft 3 is rotated freely by the bearing 7 on the main shaft. Piece of main shaft 3 Attach the chainwheel 4 to the chainwheel fixing plate 9 and fix it on the side. 5 and then drive the wheels (same as a regular bicycle). On the other side there is one fixed lock plate 10, as well as a chain wheel fixed plate. A convex pillar 11 is provided on the outside of the board surface on the fixed lock board 9 and the fixed lock board 10, and The square holes 12 and nuts 13 are used to lock and fix the screws on both sides of the main shaft, respectively. When the main shaft 3 rotates, the chain wheel fixed plate 9 and fixed lock plate 10 are It rotates accordingly. In addition, the main shaft 3 has one left-turning screw 14L and one right-turning screw. The crank is fixed onto the main shaft fitting tube 6 by a screw 14R.

[0011] The crank 1 (including the left crank and right crank) under this invention is fitted with the main shaft 3. One unidirectional bearing (Cluteh bearing) 2 is provided in the shaft hole of the joint part, and both left and right The crank 1 only has the effect of slightly driving and rotating the main shaft 3 in the same direction. Inside both cranks 1 there is one alternating disk 15 and one alternating circle for each step. Insert the disc sleeve 16 and connect it to the crank by screwing it together and attaching the replacement disc 15. and rotate freely on the crank 1, and a convex column 11 etc. is also placed on the alternating disk 15. Furthermore, several axially oriented semicircles are provided on the outer diameter of the inner side of the joint where both cranks 1 are fitted. A concave tank 17A is provided, and a corresponding slide rod of a semicircular concave tank 17B is provided on the inner diameter. The crank plates 18 are respectively fitted onto both cranks 1, and the above-mentioned two phases are matched. Put the steel ball 19 into the semicircular concave tank 17, and lock the slide lock plate 18. It can only be moved horizontally on crank 1, but cannot be rotated, so a separate slide lock is required. A lock hole 32 is provided on the plate 18, and the alternating disk 15, chain wheel fixing plate 9, and Corresponding to the convex pillar 11 of the fixed lock plate 10 etc.; When fitted onto the main shaft 3 (i.e. onto the screw 14 on the main shaft), one washer 20, a snap ring 21, etc., for snap fixation.

0012 The present invention further includes one sub-shaft fitting tube 22 under the main shaft fitting tube 6, and One subshaft 23 is provided in the subshaft 23, and one chain wheel is provided at each end of the subshaft 23. The wheel 24 is fixed, and both chain wheels 24 are rotated synchronously with the subshaft 23. Then, attach one end of the two chains 25 whose lengths have already been calculated to the chainwheel 2. 4, and the other ends of both chain wheels 25 are fixed to each other. It is fixed to the top of the replacement disk 15 above rank 1, and as can be seen in Figure 3, there are two The chain 25 has an X-shaped connection form (as shown by the connecting axis line), and alternates on both sides of the main shaft 3. Regarding the disk 15, once the left alternating disk 15 rotates in a clockwise direction, the right side The alternating disk 15 is interlocked with a chain 25 and a chain wheel 24 on the subshaft. and rotate counterclockwise; the reverse is also the same, i.e. up and down alternation form a movement.

[0013] A separate mechanism is provided to control the two crank arms 26 above the subshaft fitting tube 22. The device is mounted on the horizontal support frames 27 on both sides, fixed by a pivot joint of the pivot shaft 28, and One end of the human-shaped spring 29 is fitted into the control crank arm. 26, and the other end is placed close to the horizontal support frame 27, and both of the control cranks are connected to each other. The rank arm 26 retains the force of contracting its apex inwardly; The top end of the control crank arm 26 fits onto the slide lock plate 18 or and twist the slide lock plate 18 to provide the function of lateral (axial) movement. , and a steel wire 30 is connected to each tail end of the control crank arm 26. At the same time, the control lever 31 is connected to the top of the control lever 31 provided above the vehicle frame. By twisting 31 and indexing the steel wire 30, the control cranks on both sides are The top end of the arm 26 can be expanded outwardly, or the steel wire 30 can be loosened. When compressed, the force of the human-shaped spring 29 is combined to control the compression action of the crank arm 26. so that it can move horizontally to the left and right using the slide lock plate 18. .

[0014] According to the bicycle (or indoor fitness vehicle) having the above-mentioned structural combination, the control lever 31 is When adjusted to position 1, the steel wire 30 is pulled strongly upward and the controls on both sides are The top end of the crank arm 26 is expanded outward, and both slides on both cranks 1 are The lock discs 18 are moved outward and laterally, and the slide lock discs 18 The lock hole 32 corresponds to the convex pillar 11 of the alternating disc 15, so that both the left and right clamps are connected there. When pedaling link 1, both slide lock discs 18 and both change discs 15 are activated at the appropriate time. are joined together; further petering will also place them on both sides of the subshaft 23. Due to the relationship in which the chain wheel 24, chain 25, etc. are interlocked with the alternating disc 15, , once the left crank is stepped downward, the right crank will naturally move upward. It rises and performs the transmission method of lever-type alternating motion, and when petering, the human running Unlike the row method, the vertical petering is relatively fast and there are no blind spots (the amount of effort required is comparatively low). ), so it is relatively labor-saving, and when fatigued, it can be petaled at a relatively small angle. If you need to accelerate, you can petal at a relatively large angle and march. It's also a great way to enjoy yourself while you're there.

[0015] Once the control lever 31 is adjusted to position 3, the steel wire 30 is at its most loose. In this state, the top ends of both control crank arms 26 under the present invention are moved by the action force of the human-shaped spring 29. Close the slide lock plates 18 together and attach the fixed lock plate 10 and chain respectively. (At this time, the slide lock plate is completely aligned with the replacement disk.) have left). Therefore, the slide lock plate 18 also has a lock hole 32 thereon. and the fixed lock plate 10 and the convex pillar 11 on the chain wheel fixed plate 9 and are integrated with each other. They are connected with a fit, and when the left and right cranks are turned to perform the above-mentioned joining operation, the angle of 180 degrees is Maintains the crossed configuration, and after assembly, it can be used as a general crank-rotating transmission bicycle or an indoor bicycle. It becomes a car.

[0016] Once the control lever 31 is adjusted to position 2, the two slide lock plates 18 are between the alternating disk 15, the fixed lock disk 10, and the chain wheel fixed disk 9, respectively. The rotation of the crank 1 causes the alternating disk 15 or the fixed lock disk 10 to be moved. It becomes completely unrelated to the ring wheel fixing plate 9, etc.; when petering, the fixed toe device 3 When 3 is placed on the palm of the foot, both the left and right cranks 1 can be moved independently and can be lever-type or crank rotated. The unidirectional bearing 2 in the crank allows for a fixed position on the main shaft. It rotates in one direction by making full use of the large chain wheel 4 that is attached to the Living and moving forward positively. However, the foot stepping method at that stage is a multi-type For example: When both feet step on the same angular position, all at the same time The cranks on both sides rotate in a circular manner, and the cranks on both sides are levered up and down at the same time. The two sides rotate the crank in turn, and the two sides take turns up and down, lever-type petaling. by resting on one side and levering or cranking on the other side. Petaling allows you to enjoy the advantages of multi-purpose and diversification.

[0017]

[Effect of the idea] A kind of multi-purpose bicycle transmission groove, its main structure is a pair of wheels, including: Directional crank, one set of control parts, one set of alternating movement parts and one set of main shafts to rotate It is composed of a mechanism such as a chain wheel fixed plate, and the control unit controls the slide roller. Manipulate the lock board to move left and right for selection, and temporarily replace it with the slide lock board. When the alternating disks of the moving parts are combined, they perform lever-type (lever) alternating up and down movements; When the slide lock plate and chain wheel fixed plate are combined, normal crank rotation Then, once the slide lock plate maintains its neutral position, it becomes a mechanism. If the pedals on both sides are in the same position, they will rotate all at once. The two sides can move in a lever-like manner by moving up and down at the same time, and the two sides can rotate alternately. Can be rotated and lever-type movement is possible, one side is resting, one side is rotating, one side is resting. , one side functions as a lever type movement and other diversified movements.

[Brief explanation of drawings]

FIG. 1 is an exploded view of an embodiment according to the present invention.

FIG. 2 is a partially sectional view showing a combined state of an embodiment of the present invention.

FIG. 3 is a side view of what is shown in FIG. 2;

[Explanation of symbols]

1... Crank 2... Unidirectional bearing 3... Main shaft 4... Large chain wheel 5... Chain 6... Main shaft fitting tube 7... Bearing 9... Chain wheel fixing plate 10 ... Fixed lock plate 11 ... Convex column 12 ... Square hole 13 ... Nuts 14L, 14R ... Left and right turning screws 15 ... Alternate disk 16 ... Alternate disk sleeve 17A, 17B...Semicircular concave tank 18...Slide lock plate 19...Steel ball 20...Washer 21...C snap ring 22...Subshaft fitting tube 23...Subshaft 24...・ Chain wheel 25 ... Chain 26 ... Crank 28 ... Pivot 29 ... Human-shaped spring 30 ... Steel wire 31 ... Control lever 32 ... Lock hole 33 ... Adjustable foot device

Claims (6)

[Scope of utility model registration request] [Claim 1] A power transmission mechanism for a multi-purpose bicycle, the main structure of which includes the following: a main shaft that can rotate freely is provided in a main shaft fitting tube of the bicycle frame, and one chain is provided on each side of the main shaft. A wheel fixed plate (a large chain wheel can be installed on the plate, and the chain wheel is used to combine the rear wheel and drive the rear wheel to rotate forward) and one fixed lock plate are fixed, and both sides of the wheel fixed plate are fixed. A crank fitted with a one-way bearing is attached to the inner end of the fitting part of both the left and right cranks, which are connected and fixed, and one freely rotatable alternating disk for each step and several disks on its inner diameter. A slide lock plate is provided with a semicircular concave tank in the axial direction, and the slide lock plate corresponds to the semicircular concave tank on the outer diameter of the crank fitting part, and a steel ball is inserted to slightly lock the slide lock plate. It can be moved laterally on the crank so that it cannot rotate, and/or it can be coupled integrally with the alternating disc by lateral movement of the slide lock disc, or it can be integrally coupled with a fixed lock disc or a chain wheel fixed disc. ; A subshaft fitting tube is separately provided below the main shaft fitting tube of the vehicle frame, one subshaft is provided within it, one chain wheel is fixed to both ends of the subshaft, and two lengths are fixed. One end of each calculated chain is fixed on the chain wheel, and the other end is fixed on the top of the alternating disc on the crank.When viewed from the side, the two chains form an X-shaped connection. None, one of the alternating disks rotates downward and the other one rotates upward; the upper part of the subshaft fitting tube is provided with a horizontal receiving frame toward both sides, and each Pivotally connect the two control crank arms, and fit a spring on each pivot to force the two control crank arms to contract inwardly, so that both control crank arms The top end of each is placed on the slide lock plate, and the tail end of the control crank arm is connected to the control lever by a steel wire, and the control crank arm is connected to the control lever by adjusting or loosening the steel wire by adjusting the control lever. A slide lock plate that can be operated to move horizontally from side to side; by a combination of the above mechanisms, a control lever that has been adjusted temporarily can be used to perform lever-type movements for alternating up and down of a bicycle (or indoor fitness vehicle), or for general use. A transmission mechanism characterized by selecting rotary motion of the crank or independent action of the cranks on both left and right sides, and making full use of the main shaft to rotate in a single direction. 2. The transmission mechanism according to claim 1, wherein only a few of the left and right cranks function independently, and other structures are omitted. 3. A transmission mechanism according to claim 1, wherein only a small portion of the mechanism functions as a vertical alternating lever type movement, and other structures are omitted. 4. In the mechanism according to claim 1, only a few of the left and right cranks are selected to perform the function of independent operation or general crank rotational movement, and other structures are omitted. Characteristic transmission mechanism. 5. The mechanism according to claim 1, wherein a small portion of the mechanism is selected to perform the function of vertical alternating lever type movement or general crank rotation type movement, and other structures are omitted. transmission mechanism. [Claim 6] In the mechanism according to claim 1, only a few of the left and right cranks are selected to have the function of independent action or alternating vertical lever movement, and other structures are omitted. Characteristic transmission mechanism.