JP2019151313A - Chassis fixing type shaft - Google Patents

Abstract

To provide a semi-fixing type shoe fixing shaft for realizing efficient pedal rotation motion.SOLUTION: A chassis fixing type shaft comprises a crank 13, a pedal shaft 1 fixed to the crank 13, a shoe fixer 2 freely rotatably installed on the pedal shaft 1, a shoe fixer gear 3 fixed to the shoe fixer 2 and freely rotatably installed on the pedal shaft 1 at the same time, an exclusive shoe detachably fixed to the shoe fixer 2, a gear fixing plate 8 freely rotatably installed on the pedal shaft 1, an acceleration gear shaft 5 freely rotatably installed on the gear fixing plate 8, an acceleration gear small 4 installed so as to interlock with a shoe fixer gear 3 by being fixed to the acceleration gear shaft 5, a one-way clutch 15 installed on the pedal shaft 1 so as to freely rotate in the same direction as the driving rotational direction of the crank 13 and to fix rotation in the inverse rotation direction, an acceleration gear large 6 fixed to the one-way clutch 15, a shaft gear fixed to the pedal shaft 1 so as to interlock with the acceleration gear large 6 and a sub-frame tip 9 fixed to the gear fixing plate 8.SELECTED DRAWING: Figure 1

Description

  The present invention mainly relates to a propulsion device such as a bicycle having a rotary pedal mechanism powered by a person's foot or a training machine, and a pedal position called a top dead center or a bottom dead center is located above or below the rotation cycle. The present invention relates to a semi-fixed shoe fixing shaft that realizes an efficient pedal rotation movement in a region where it is difficult to transmit the force from the wheel.

  Bicycles are popular for recreation, transportation and competitive sports, and are popular all over the world. Therefore, in the bicycle industry, various bicycle parts are highly common and constantly improved. One of the bicycle parts that has been greatly redesigned is a bicycle pedal device.

  The propulsion device represented by a bicycle by rotating a pedal exhibits the highest level of efficiency, and the further improvement in efficiency according to the present invention widens the possibility of using the bicycle, improving health by promoting exercise and improving the car and motorcycle. This helps to improve environmental problems by suppressing energy consumption by transportation means.

  As a result of research on pedaling technology, the force of the calf is inefficient as the power to rotate the pedal, and pedaling that changes the angle of the ankle called ankling should be avoided.

  There are some athletes who have achieved high results through aggressive ankling, but from the viewpoint of efficiency in the current pedal system, it is considered that ankling should be avoided. It is an important problem in the efficiency of pedaling whether or not to minimize the necessary amount.

  Among the standards for bicycles that are highly common and standardized according to the world standard, it is required to implement the invention with the simple and necessary apparatus that does not affect the existing standards.

In order to overcome these situations, Japanese Patent Application Laid-Open No. 2014-121885 discloses an invention in which the force of the calf applied to the pedal body is converted into the rotation of the crank by fixing the rotation of the pedal body. However, when using the invention of Japanese Patent Application Laid-Open No. 2014-121885, in order to transmit the rotational force of the pedal body to the crank when the rotational speed of the crank is high, it is necessary to move the ankle largely at a certain speed or more. There was a situation where it was difficult to move the ankle quickly and the working range of the ankle was narrow, so that the effect of the invention could not be sufficiently exhibited.
In order to solve this situation, Japanese Patent Application No. 2012-108878 sets a reference for ankle angle change, and a rotation speed acceleration device using a plurality of gears or the like is installed therein, thereby changing the angle of the pedal body. Amplification, in some cases reduced, makes it possible to transmit force effectively to the crank.

JP 2014-121885 A Japanese Patent Application No. 2012-108878 Japanese Patent Application No. 2016-154043

  Japanese Patent Application No. 2012-108878 (pedal gear mechanism) sets an ankle angle change reference, and a rotation speed acceleration device using a plurality of gears is installed therein to amplify the change in the angle of the pedal body. In such a case, if an ankle force is used only by an angle, all loads may be applied to the foot, which may cause injuries and the like.

In the method of fixing the position of the gear to the shin or the body as in Japanese Patent Application No. 2012-108878 and Japanese Patent Application No. 2006-154043, it is necessary to install many instruments on the legs, and the usability is significantly reduced. As a result of the difficulty of wearing, there was a problem that it was not possible to use it by daily bicycle use.

In Japanese Patent Application No. 2006-154043, since the tension through the string is used, the force to stretch the ankle can be used, but the use of the force to bend the ankle is difficult.

Conventional semi-fixed shoe fixing shafts require the use of dedicated shoes, but there is a problem that it is difficult to use on a daily basis because general shoes cannot be used.

  In the present invention, instead of fixing the standard of the angle change created by the shin and the sole when moving the ankle to the passenger's body, it is fixed to the bicycle chassis or crank, reducing the equipment installed on the foot and using it It is possible to install it alone.

In the present invention, by using a combination of two gears and a one-way clutch, it is possible to convert both the bending and stretching forces of the ankle into the driving force of the bicycle.

By providing a clip for fixing the shoe, it is possible to use even a general shoe.

  Efficient pedaling by controlling the rotation of the pedal body and reducing the burden on the calf with a simple structure that does not change the common bicycle standard, and easy pedaling even for people with disabilities in the lower limbs Make it possible.

It is a side view which shows an example of embodiment of this invention. It is the perspective view which looked at this invention from the front upper direction which shows an example of embodiment. It is the perspective view which looked at the present invention from the upper part which shows an example of an embodiment. It is the perspective view seen from the back back side which shows an example of embodiment of this invention. It is the perspective view which expanded and showed the gear connection part of an example of embodiment of this invention. It is the perspective view which disassembled and displayed the part of the gear part of an example of embodiment of this invention. It is the perspective view seen from the back back side of the gear part in the case of enabling reverse rotation of the present invention. It is the perspective view which disassembled and displayed the component of the gear part in the case of enabling reverse rotation of this invention. It is the perspective view seen from the back which shows an example of the gear part of embodiment which mounts the gear of forward rotation and reverse rotation simultaneously. It is the perspective view which disassembled and displayed the component of the gear part of an example of embodiment which mounts the gear of forward rotation and reverse rotation simultaneously. It is the perspective view seen from the back back side which showed an example of the embodiment which fixed the gear fixed plate directly to the crank. It is the side view which showed an example of embodiment of the exclusive shoes fixed to a shoe fixing device so that attachment or detachment is possible. FIG. 5 is a side view showing an example of an embodiment of a shoe clip for detachably fixing a general shoe as an alternative to the shoe fixing device. It is the side view which showed an example of embodiment at the time of fixing some gears to exclusive shoes.

  FIG. 1 is a side view showing an example of an embodiment of a chassis-fixed shaft in the case where a force for moving the ankle in the direction of extending the ankle is converted into rotation of the crank. 2, 3 and 4 show an example of the embodiment in a perspective view. The 12 cranks are mounted on the 12 chassis, the 1 pedal shaft is fixed to the 13 cranks, the 2 shoe holders are freely mounted on the 1 pedal shaft, and the 2 shoe holders are fixed to the 1 shoe shaft. 3 shoe fixing gears that can be freely rotated, 21 exclusive shoes that are detachably fixed to 2 shoe fixing devices, 8 gear fixing plates that can be freely rotated on 1 pedal shaft, and 8 gear fixing plates that can rotate freely Installed in the same direction as the drive rotation direction of the 13 crank on the 5 acceleration gear shaft and the 4 acceleration gear small and 1 pedal shaft fixed to the 5 acceleration gear shaft and fixed to the 3 shoe fixing gear One pedal to be linked with 15 one-way clutch installed to rotate and fixed in the reverse rotation direction, 6 acceleration gear large fixed to 15 one-way clutch, and 6 acceleration gear large 7 shaft gear fixed to the shaft and 9 subframe tip fixed to the 8 gear fixed plate, 9 subframe tip, 10 subframe after the free rotation and 10 subframe after the free rotation, and 12 The chassis fixed shaft is composed of 11 chassis fixing devices fixed to the chassis.

  Here, the 15 one-way clutch is installed where the force to extend the ankle with respect to one pedal shaft is transmitted through the gears in the drive rotation direction of 13 cranks, and if it bends and does not transmit the force when it bends. May be. For example, the same effect can be obtained even if it is installed on a small 4-acceleration gear or a 3-shoe fixing gear. At this time, the movement of extending the ankles causes the three shoe fixing gears to rotate in the same direction as the drive rotation direction of the 13 cranks, but the 4th acceleration gear and the 6th acceleration gear rotate in the reverse direction. Therefore, when a 15 one-way clutch is installed with a large 6-acceleration gear as described in claim 1, it rotates freely in the same direction as the rotation direction of 13 cranks and is fixed in the opposite direction. However, in the case of installation on the three shoe fixing gear, the rotation is fixed in the same direction as the rotation direction of the 13 crank and is installed so as to freely rotate in the reverse direction.

Any mounting method may be used for fixing the 21 exclusive shoe and the 2 shoe fixing device. For example, as shown in FIG. 12, a mounting method in which a protrusion attached to a shoe for exclusive use of 21 and a recess attached to a two shoe fixing device are combined or a method of binding with a string may be used.

The fixing position of the 11 chassis fixing device and the 12 chassis may be installed anywhere as long as the mounting of the present invention is not hindered.
For example, the total length of the present invention including 9 subframes ahead and 10 subframes after is required to be longer than the length at the time of the furthest distance from 13 cranks and 11 chassis fixtures. In addition, the 13 crank of a general bicycle has 14 sprockets on the right side, and the 12 chassis has a different shape depending on the bicycle design, so the length of the subframe is changed on the left and right, and the shape is changed , 12 may be mounted in such a way as to change the fixing position to the chassis.

Any method may be used for fixing the 11 chassis fixing device and the 12 chassis. For example, a method using an adhesive, a method of installing a screw hole and fixing with a screw or similar fastener, a method of binding with a string, or a method of integrally molding with 12 chassis may be used.

  FIG. 7 and FIG. 8 are perspective views showing an example of an embodiment of the chassis fixed shaft in the case where the force for moving the ankle in the bending direction is converted into the rotation of the crank. As an alternative to 3-shoe fixing gear, 5-acceleration gear shaft, 4-acceleration gear small, 15 one-way clutch and 6-acceleration gear large, 2-shoe fixing is free to rotate in the direction of drive of 13 crank and reverse direction 17 reverse one-way clutch, 18 internal gear fixed to 17 reverse one-way clutch, 20 reverse rotation gear shaft fixed to 8 gear fixed plate, and 20 reverse rotation gear The chassis-fixed shaft is constituted by a 19 counter-rotating gear that is rotatably installed so as to be interlocked with both an 18 internal gear and a 7-shaft gear.

FIG. 9 and FIG. 10 are perspective views showing an example of an embodiment of a chassis-fixed shaft when a gear set for extending an ankle movement and a gear set for bending are mounted simultaneously.
The 12 cranks are mounted on the 12 chassis, the 1 pedal shaft is fixed to the 13 cranks, the 2 shoe holders are freely mounted on the 1 pedal shaft, and the 2 shoe holders are fixed to the 1 shoe shaft. 3 shoe fixing gears that can be freely rotated, 21 exclusive shoes that are detachably fixed to 2 shoe fixing devices, 8 gear fixing plates that can be freely rotated on 1 pedal shaft, and 8 gear fixing plates that can rotate freely Installed in the same direction as the drive rotation direction of the 13 crank on the 5 acceleration gear shaft and the 4 acceleration gear small and 1 pedal shaft fixed to the 5 acceleration gear shaft and fixed to the 3 shoe fixing gear One pedal to be linked with 15 one-way clutch installed to rotate and fixed in the reverse rotation direction, 6 acceleration gear large fixed to 15 one-way clutch, and 6 acceleration gear large 7 shaft gear fixed to the shaft and 9 subframe tip fixed to the 8 gear fixed plate, 9 subframe tip, 10 subframe after the free rotation and 10 subframe after the free rotation, and 12 An 11 chassis fixing device fixed to the chassis, a 17 reverse one-way clutch installed on the 2 shoe fixing device so that the 13 crank can rotate freely in the driving rotation direction and the reverse rotation is fixed. 17 Rotating so as to interlock with both 18 internal gear and 7 shaft gear on 18 internal gear and 20 reverse rotation gear shaft fixed to 18 internal gear fixed to 8 reverse gear and 8 gear fixed plate. The chassis fixed shaft is constituted by 19 reversely rotating gears that are freely installed.

  Here, 1 pedal shaft, 3 shoe fixing gear, 5 acceleration gear shaft, 4 acceleration gear small, 15 one-way clutch, 6 acceleration gear large, 7 shaft gear, 17 reverse one-way clutch, 18 internal gear and 8 gear fixing plate What is the combination of the 20 reverse rotation gear shaft fixed to the 20 reverse rotation gear shaft and the movement of bending and extending the ankle can be accelerated and transmitted to the 1 pedal shaft when the 2 shoe fixing device is rotated? It may be a simple implementation. For example, as described in Japanese Patent Application No. 2012-108878, the acceleration rate may be improved by increasing the number of gears and shafts to be accelerated and a mounting method such as a planetary gear.

  Here, a mounting method other than gears may be used as long as the force for moving the ankle can be efficiently transmitted to the one pedal shaft. For example, mounting is possible even with force transmission using sprockets and chains instead of gears.

FIG. 11 is a perspective view showing an example of an embodiment of a chassis-fixed shaft in the case where the 9 subframe tip, the 10th subframe, and the 11 chassis fixing device are eliminated and the 8 gear fixing plate is directly fixed to the crank.

FIG. 13 is an embodiment of a chassis-fixed shaft when mounted by 22 shoe clips that are fixed by sandwiching 23 ordinary shoes having a general shape rather than 21 dedicated shoes, in order to make them more versatile. One example is shown in a side view.
The 22 shoe clip is made of an elastic material, and by pushing the 23 shoe, the 22 shoe clip is sandwiched so that the 23 shoe can be fixed to one pedal shaft.

Here, the 22 shoe clip may be mounted in any manner as long as it can fix 23 ordinary shoes. For example, instead of a clip using an elastic body, a method of mounting a structure in which shoes are sandwiched between a hinge and a spring, or a method of wrapping with rubber or a string may be used.

FIG. 14 is a perspective view showing an example of an embodiment of a chassis-fixed shaft in a case where a two-shoe fixing device and a three-shoe fixing gear are separately mounted on a 21-specific shoe. 21 shoes are fixed to 2 shoes, 2 shoes are fixed to 3 shoes, and 2 shoes are slidably installed on 1 pedal shaft. The chassis fixed shaft can be divided accordingly.

DESCRIPTION OF SYMBOLS 1 Pedal shaft 2 Shoe fixing device 3 Shoe fixing device gear 4 Acceleration gear small 5 Acceleration gear shaft 6 Acceleration gear large 7 Shaft gear 8 Gear fixing plate 9 Subframe tip 10 Subframe rear 11 Chassis fixing device 12 Chassis 13 Crank 14 Sprocket 15 One-way clutch 16 Shoe clip 17 Reverse one-way clutch 18 Internal gear 19 Reverse-rotation gear 20 Reverse-rotation gear shaft 21 Exclusive shoe 22 General shoes

Claims (6)

A crank rotatably mounted on the chassis, a pedal shaft fixed to the crank,
A shoe fixing device that is freely rotatable on the pedal shaft, a shoe fixing gear that is fixed to the shoe fixing device and that is simultaneously freely rotated on the pedal shaft, and a dedicated shoe that is detachably fixed to the shoe fixing device And a gear fixing plate that is rotatably set on the pedal shaft, an acceleration gear shaft that is rotatably set on the gear fixing plate, and a gear fixing plate that is fixed to the acceleration gear shaft and is interlocked with the shoe fixing gear. A one-way clutch installed on a small acceleration gear and the acceleration gear shaft so as to freely rotate in the same rotational direction as the drive rotational direction of the crank and to be fixed in the reverse rotational direction; and fixed to the one-way clutch A large acceleration gear, a shaft gear fixed to the pedal shaft so as to interlock with the large acceleration gear, a subframe tip fixed to the gear fixing plate, and the subframe tip and rotation A chassis-fixed shaft comprising: a sub-frame that can be freely rotated; and a chassis fixing device that can be freely rotated and fixed to the chassis after the sub-frame. The chassis fixed shaft according to claim 1,
The shoe fixing gear according to claim 1, the acceleration gear shaft according to claim 1, the small acceleration gear according to claim 1, the one-way clutch according to claim 1, and the acceleration gear large according to claim 1. As an alternative, a one-way clutch for reverse use installed in the shoe fixing device according to claim 1 so as to rotate freely in the driving rotation direction of the crank according to claim 1 and to fix the rotation in the reverse direction. The internal gear fixed to the reverse one-way clutch, the reverse rotation gear shaft fixed to the gear fixing plate according to claim 1, the internal gear on the reverse rotation gear shaft, and the shaft gear according to claim 1. And a counter-rotating gear that can be freely rotated so as to be linked to both. The chassis fixed shaft according to any one of claims 1 to 2,
The shoe fixing gear according to claim 1, the acceleration gear shaft according to claim 1, the small acceleration gear according to claim 1, the one-way clutch according to claim 1, and the acceleration gear large according to claim 1. A chassis-fixed shaft comprising the reverse one-way clutch according to claim 2, the internal gear according to claim 2, the reverse rotation gear shaft according to claim 2, and the reverse rotation gear according to claim 2. The chassis fixed shaft according to any one of claims 1 to 3,
The pedal shaft according to claim 1, the shoe fixing gear according to claim 1, the gear fixing plate according to claim 1, the acceleration gear shaft according to claim 1, and the small acceleration gear according to claim 1. The one-way clutch according to claim 1, the acceleration gear size according to claim 1, the shaft gear according to claim 1, the subframe tip according to claim 1, and the rear after the subframe according to claim 1. The chassis fixing device according to claim 1, the reverse one-way clutch according to claim 2, the internal gear according to claim 2, the reverse rotation gear shaft according to claim 2, and the reverse rotation gear according to claim 2. A chassis-fixed shaft characterized in that a part or all thereof is divided and installed in the dedicated shoe according to claim 1. The chassis fixed shaft according to any one of claims 1 to 4,
The sub-frame tip according to claim 1, the post-sub-frame according to claim 1, and the chassis fixing device according to claim 1 are discarded.
A chassis-fixed shaft, wherein the gear fixing plate according to claim 1 is fixed to a crank according to claim 1. The chassis fixed shaft according to any one of claims 1 to 5,
The chassis fixing shaft according to claim 1, further comprising a shoe clip shaped to cover a general shoe made of an elastic material.

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