WO2005009832A1 - クランクペダル装置及びそれを備えた乗り物 - Google Patents
クランクペダル装置及びそれを備えた乗り物 Download PDFInfo
- Publication number
- WO2005009832A1 WO2005009832A1 PCT/JP2004/011206 JP2004011206W WO2005009832A1 WO 2005009832 A1 WO2005009832 A1 WO 2005009832A1 JP 2004011206 W JP2004011206 W JP 2004011206W WO 2005009832 A1 WO2005009832 A1 WO 2005009832A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gear
- driving force
- crank
- dead center
- contact
- Prior art date
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/02—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs propelled by the patient or disabled person
- A61G5/027—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs propelled by the patient or disabled person by using auxiliary detachable mechanisms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/10—Parts, details or accessories
- A61G5/1051—Arrangements for steering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M1/00—Rider propulsion of wheeled vehicles
- B62M1/24—Rider propulsion of wheeled vehicles with reciprocating levers, e.g. foot levers
- B62M1/26—Rider propulsion of wheeled vehicles with reciprocating levers, e.g. foot levers characterised by rotary cranks combined with reciprocating levers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M3/00—Construction of cranks operated by hand or foot
- B62M3/06—Construction of cranks operated by hand or foot with elliptical or other non-circular rotary movement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H21/00—Gearings comprising primarily only links or levers, with or without slides
- F16H21/10—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane
- F16H21/16—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane for interconverting rotary motion and reciprocating motion
- F16H21/18—Crank gearings; Eccentric gearings
- F16H21/36—Crank gearings; Eccentric gearings without swinging connecting-rod, e.g. with epicyclic parallel motion, slot-and-crank motion
- F16H21/365—Crank gearings; Eccentric gearings without swinging connecting-rod, e.g. with epicyclic parallel motion, slot-and-crank motion with planetary gearing having a ratio of 2:1 between sun gear and planet gear
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/02—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs propelled by the patient or disabled person
- A61G5/021—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs propelled by the patient or disabled person having particular propulsion mechanisms
- A61G5/023—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs propelled by the patient or disabled person having particular propulsion mechanisms acting directly on hubs or axis
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/02—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs propelled by the patient or disabled person
- A61G5/024—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs propelled by the patient or disabled person having particular operating means
- A61G5/026—Cranks or hand wheels
Definitions
- the present invention converts the reciprocating motion of the input means (pedal device) in the up and down direction into a rotary motion, thereby efficiently converting the driving force (stepping force) applied to the input means into the energy of the rotary motion.
- the present invention relates to a crank device, a vehicle provided with the crank device, a crank pedal device for a vehicle, and a vehicle. Background art
- crank pedal device installed on a bicycle
- the pedal is depressed toward the bottom dead center, and the crank shaft is rotated as it is via the crank arm, and wound around a sprocket mounted integrally with the crank shaft.
- the rear wheel is driven by rotating the sprocket of the rear wheel through the hooked chain.
- the pedal is depressed to impart rotational motion to the crankshaft
- the weight is shifted alternately left and right and the pedal is depressed, causing the steering wheel to wobble easily, causing unstable running and powering the crank device.
- the transmission efficiency is impaired.
- the present invention has been devised in order to solve such a problem, and converts a reciprocating motion of the input means (pedal device) in a vertical direction into a rotary motion to thereby drive the input means. It is an object (problem) to provide a crank device capable of efficiently converting a force (depressing force) into energy of rotational motion, a vehicle including the same, a crank pedal device for a vehicle, and a vehicle. is there. Disclosure of the invention
- the present invention has been devised in order to solve the above problems, and has taken the following measures. That is, in the invention according to claim 1, a crankshaft rotatably provided on a fixed member via a bearing, A pair of add-on gears rotatably provided on these crank arms and extending on both sides of the crankshaft, and a pair of add-on gears provided on the fixed member side, wherein the add-on gears are planetary gears.
- a pair of fixed gears that combine so as to roll (revolve) while rotating on their own, a pair of guide means provided on the fixed gear side, and a top dead center that is guided by these guide means.
- a pair of input members for inputting a driving force provided to reciprocate between the bottom dead center and the input member;
- a driving force applied to the input member is transmitted to each of the internal gears, and a pair of driving force transmitting means for rotating each of the crank arms is provided on the crankshaft.
- the term "gear” refers to a member having a function of transmitting power through meshing contact with a gear, and includes members such as a sprocket and a toothed belt.
- the input member when a driving force is applied (pressed) downward (pressing down) from above to one input member, the input member is guided by the guide means and moves. I do. That is, when the input member on one side is at or near the top dead center, the input member on the other side is at or near the bottom dead center.
- the driving force is transmitted to the adduction gear via the driving force transmission means. Is done. As a result, the input member on one side moves from the top dead center or its vicinity to the bottom dead center or its vicinity.
- the input member on the other side moves from the bottom dead center or its vicinity to the top dead center or its vicinity via the driving force transmission means provided on the other side. That is, when a driving force is applied to one of the input members, the input member Move while being guided by. At this time, in response to this, the adduction gear at or near the top dead center generates a rotational moment due to the driving force via the driving force transmitting means, and performs an adduction.
- the adduction gear performs a planetary gear-like rolling motion (orbital motion) about the crankshaft center while engaging with the fixed gear, and the adduction gear itself rotates around the crank arm.
- the internal gear revolves while rotating, so that the linear or curved reciprocating motion of the input member is converted into a rotating circular motion by the crank arm.
- the driving force due to the rotational motion is extracted to the outside from the driving force extracting means provided on the crankshaft.
- the driving force take-out means is formed by a shaft drive system including a bevel gear and a drive shaft, instead of a winding link mechanism such as a sprocket and a chain engaged with the pulley and a belt engaged with the pulley.
- a winding link mechanism such as a sprocket and a chain engaged with the pulley and a belt engaged with the pulley.
- the configuration of the present invention is basically the same as that described in claim 1 above, but is characterized by the fact that, in addition to the above configuration, the invention described in claim 2 Adduction gear and upper The ratio of the number of teeth to each of the fixed gears is formed such that the internal gear makes one rotation when the internal gear makes one revolution by rolling on the fixed gear.
- the present invention exhibits the following operation in addition to the above-described claim 1. That is, one adduction gear and the other addendum gear are laid out so that they are always circumscribed at or near the center point of the fixed gear when viewed from the side. .
- each adduction gear rotates by one rotation relative to the fixed gear, it becomes possible to make one rotation inside the fixed gear and revolve, and as a result, the input member moves in the direction along the vertical center axis of the input member. This makes it possible to smoothly perform the reciprocating motion, and thereby more efficiently convert the driving force applied to the input member into a rotational motion.
- each of the driving force transmission means includes: a contact member provided on each of the input members; It is characterized in that it is formed by a contact-driven driving force transmission mechanism that is in contact with each cam-like contact member provided on each of the internal gears.
- the contact member when a driving force acts on the input member, the contact member comes into contact with the cam-like contact member at a position offset from the direction in which the contact member moves along the guide means and presses from above.
- the internal gear on one side moves from or near the top dead center (the internal gear on the other side is at or near its bottom dead center), and from the bottom dead center or its vicinity (the internal gear on the other side). Can roll toward or near its top dead center.
- the driving force from the input member can be transmitted to the adduction gear by a simple structure of the driving force transmission mechanism by contact.
- the invention according to claim 4 relates to the crank device according to claim 3,
- Each input member guided by each guide means and reciprocating between the above-mentioned top dead center or its vicinity and the above-mentioned bottom dead center or the vicinity of the bottom dead center is an axis of each of the fixed gears or its axis.
- a contact member and a cam of the driving force transmitting mechanism by the contact when the reciprocating motion reciprocates along an axis passing through a vertical dead center passing in the vicinity and each of the adduction gears is located at or near the top dead center;
- the contact portion with the contact member is set at a position deviated from an axis passing through the upper and lower dead centers.
- the input member reciprocates along an axis passing through the vertical dead center passing through or near the axis of the fixed gear when guided by the guide means.
- the driving force applied to the input member side causes the contact member to reduce the driving force on the internal gear side.
- a rotational moment acts on the adduction gear.
- the internal gear is rolled while being engaged with the fixed gear, the crankshaft is rotated, and the rotational force is output from the driving force extracting means, and the reciprocating motion of the input member is efficiently converted into a rotational motion. And be able to do it.
- each contact member of the driving force transmission mechanism by the contact is provided with an upward movement amount regulating means for defining an upward movement amount. It is characterized by having.
- the input member is linked to the guide means via the driving force transmitting mechanism formed by the driving force transmitting mechanism by contact, but the driving force transmitting mechanism by contact is provided.
- the contact member on the input member side and the cam-like contact member on the internal gear side only form a contact with each other, and are configured to be able to separate in opposite directions. For this reason, while the input member is reciprocating along the guide means, the input Even if an impact force is applied to the member, the cam-like contact member engages with the upward movement amount restricting means because the moving amount restricting means that regulates the upward movement amount is provided on the contact member side. This prevents the input member from moving upward beyond a predetermined value, reliably prevents the input member from being disengaged from the guide means, and allows the input member to be driven in a stable state. .
- crank device according to the third or fourth aspect, wherein the one input member side and the other input member side are connected via a cable member. It is characterized in that both inputs reciprocate cooperatively via the cable member.
- one input member side and the other input member side are connected via a cable member such as a chain or a wire, and the cable member is connected to a spring such as a spring.
- the invention according to claim 7 relates to the crank device according to any one of claims 1 to 6, wherein the adduction gear is formed in a sprocket form, and the fixed gear is formed in a chain form. It is characterized by having been done.
- the fixed gear 60 includes, for example, a plurality of pin members spaced between a pair of ring plate bases. It is formed in a form having a substantial chain function, which is arranged and provided with a gap. Since the adduction gear that rotates while meshing with the inside of the fixed gear is formed in the form of a sprocket, a meshing device is configured by the engagement of the chain and the sprocket. It is possible to transmit the pedal depression force smoothly.
- the engagement device Since the chain and sprocket are formed in a meshing configuration, it is possible to prevent gravel and the like from entering the chain's sprocket's meshing part during running, to ensure safe driving, and Additive gears or fixed gears can be formed at low cost, and it is possible to obtain a crank device, a vehicle, and the like with reduced weight.
- the invention according to claim 8 relates to the crank device according to any one of claims 1 to 6, wherein the adduction gear is formed in a chain form, and the fixed gear is formed in a sprocket form. It is characterized by having been done.
- the fixed gear is formed as a sprocket-shaped fixed gear having sprocket teeth, and as an internal gear rotating inside the fixed gear, a pin-shaped tooth fitted with the sprocket teeth.
- the engaging device is formed in the form of a chain-and-sprocket.
- Crank device that can prevent intrusion etc. into the meshing part of the chain and sprocket, ensure safe running, and can form the add-on gear or fixed gear at low cost and reduce the weight You can get vehicles and more.
- the invention according to claim 9 relates to the crank device according to any one of claims 1 to 6, wherein the fixed gear is formed by a toothed belt.
- a V-shaped burley groove is cut on the outer periphery of each tooth of the internal gear, and the internal gear is provided on the fixed gear side.
- a toothed belt is provided so that it has teeth that mesh with each of the teeth and meshes with the pulley groove.
- the adduction gear meshes with this toothed belt, so that vibration is suppressed.
- Equipment (mechanism) can be obtained.
- a toothed belt is fixedly provided on the adduction gear side, vibration is similarly suppressed. It becomes possible to obtain a mating device (mechanism).
- a vehicle comprising the crank device according to any one of the first to ninth aspects.
- the crank device can be advantageously applied to vehicles such as a two-wheeled bicycle, a three-wheeled bicycle, a man-powered airplane, and a water-powered man-powered boat.
- crank pedal device for a vehicle, comprising: a crank shaft rotatably provided on a vehicle body via a bearing portion; A crank arm, a pair of internal gears rotatably provided on these crank arms and rotating inward, and provided on the vehicle body side, and rolling while rotating each of the internal gears like a planetary gear (revolution)
- a pair of fixed gears that are engaged with each other, a pair of guide means provided on these fixed gears side, and are guided by these guide means so as to reciprocate between a top dead center and a bottom dead center.
- the crank device according to the first aspect of the present invention can be used for a vehicle such as a bicycle such as a motorcycle or a tricycle, a water pedal boat, and a human powered airplane. It is adopted in the crank device and has the following effects. That is, for example, when a depressing force, which is a driving force, is applied to a pedal device as an input member of a bicycle, the pedal device is guided by guide means and moves (reciprocating movement). Move) At this time, the depressing force applied to the pedal device is transmitted to the adduction gear at a position deviated from the vertical center axis via the driving force transmission means, thereby generating a rotational moment in the internal gear. .
- a depressing force which is a driving force
- the adduction gear makes a rolling motion (revolution) like a planetary gear around the crankshaft center while engaging with the fixed gear, and itself rotates around the crank arm.
- the linear motion or linear motion of the pedal device is converted into a rotary motion that rotates the crank arm, and the rotational force due to the rotary motion is converted to the crankshaft. It is taken out (transmitted) from a driving force take-out means provided on the shaft, for example, formed by a sprocket or the like, to an external member such as a chain.
- the downward stepping force applied to the pedal device is such that even when the adduction gear is at the top dead center, a rotational moment acts on the adduction gear.
- the pedal device is immediately and smoothly converted into a rotational motion without any thought, and a crank device with excellent energy conversion efficiency can be obtained.
- the driving force take-out means can be applied to, for example, a system of a shaft drive system using a gear mechanism composed of a bevel gear and a drive shaft, instead of a sprocket or bully of a winding link mechanism such as a chain or a belt.
- a winding link mechanism such as a chain or a belt.
- Another aspect of the invention according to claim 11 relates to a vehicular crank pedal device, wherein the ratio of the number of teeth between each of the internal gears and each of the fixed gears is determined by: It is characterized in that the gear is formed so as to make one rotation when rolling and making one revolution. According to the present invention, the following operation is further exhibited. That is, one of the internal gears and the other internal gear are laid out so as to always circumscribe each other at or near the center point of the fixed gear when viewed from the side. For this reason, when each adduction gear rotates by one rotation with respect to the fixed gear, it becomes possible to make one rotation inside the fixed gear and revolve, and as a result, in the direction along the vertical center axis of the pedal device. The reciprocating motion of the pedal device can be smoothly realized, and thereby the driving force applied to the pedal device can be more efficiently converted into the rotary motion.
- each of the driving force transmitting means includes: a contact member provided on each of the pedal devices; And a cam-like contact member provided on each of the internal gears in contact with the contact member.
- the contact member when a driving force acts on the pedal device, the contact member contacts the cam-like contact member at a position offset (offset) from the direction in which the pedal device moves along the guide means and presses the contact member from above.
- This causes a rotation element in the adduction gear.
- the internal gear on one side moves from or near the top dead center (the internal gear on the other side is at or near its bottom dead center), and from the bottom dead center or its vicinity (the internal gear on the other side , At or near its top dead center).
- the driving force from the input member can be transmitted to the internal gear by a simple structure of the driving force transmission mechanism by contact.
- crank crank device for a vehicle, which is guided by each of the guide means and is located at or near the top dead center and the bottom dead center or the bottom dead center.
- Each pedal device that reciprocates between and near the dead center is located along the axis passing through the upper and lower dead centers passing through or near the axis of each fixed gear.
- the contact portion between the contact member of the driving force transmission mechanism and the cam-like contact member by the contact is moved up and down. It is characterized in that it is set at a position deviated from the axis passing through the dead center.
- the pedal member when the pedal member is guided by the guide means and reciprocates, the pedal member reciprocates along an axis passing through the upper and lower dead center passing through or near the axis of the fixed gear. Since the contact portion between the contact member and the cam-like contact member is set at a position deviated from the axis passing through the vertical dead center, the driving force applied to the pedal device side is reduced by the contact member to the internal gear side. When the cam-like contact member is pressed from above, a rotational moment acts on the internal gear.
- the adduction gear is rolled while engaging with the fixed gear without thinking at or near the top dead center, the crankshaft rotates, and the rotational force is output from the driving force extracting means, and The reciprocating motion of the member can be efficiently converted into a rotational motion (Kona).
- crank crank device for a vehicle, wherein each contact member of the driving force transmission mechanism by the contact makes an upward movement amount that defines an upward movement amount. It is characterized in that a regulating means is provided.
- the pedal device is linked to the guide means through the driving force transmission mechanism formed by the contact driving force transmission mechanism, but is provided with the contact driving force transmission mechanism.
- the contact member on the pedal device side and the force-like contact member on the internal gear side to be formed only contact each other, and are configured to be able to separate in opposite directions. For this reason, while the pedal device is reciprocating along the guide means, even if an impact force is suddenly applied to the pedal device, the movement amount that defines the upward movement amount on the contact member side.
- the upward movement amount regulating means is engaged with the cam-like contact member to prevent the upward movement beyond a predetermined value. This ensures that the device is not disengaged from the guide means and that the pedal device can be operated in a stable state.
- FIG. 11 Another aspect of the invention according to claim 11 relates to a crank pedal device for a vehicle, wherein the one pedal member side and the other pedal member side are connected via a cable member.
- the one or both of the pedal devices reciprocate in cooperation with each other via the cable member.
- the one pedal device side and the other pedal device side are connected via a rope member such as a chain or a wire, and the rope member is not loosened by a spring member such as a spring.
- a rope member such as a chain or a wire
- a spring member such as a spring
- FIG. 11 Another aspect of the invention according to claim 11 relates to a crank crank device for a vehicle, wherein the adduction gear is formed in a sprocket form, and the fixed gear is formed in a chain form. It is characterized by the following.
- the invention according to claim 12 is a vehicle, comprising the vehicle crank pedal device described in claim 11.
- crank pedal device can be advantageously applied to vehicles such as a two-wheeled bicycle, a three-wheeled bicycle, a human-powered airplane, and a human-powered foot-operated port for water use.
- the invention according to claim 13 is different from the invention according to claim 1 in terms of configuration in the invention according to claim 1, wherein the crank arm, the adduction gear, the fixed gear, the driving force transmitting means, and the guide hand are provided.
- the step and the input member are provided on both sides of the crankshaft
- the invention according to claim 13 is different from the structure provided on one side of the crankshaft, and the other structures are common.
- the invention according to claim 14 is related to the crank device according to claim 13, wherein the driving force transmitting means includes: a contact member provided on each of the input members; And a cam-like contact member provided on each of the internal gears in contact with each other and formed by a driving force transmission mechanism by contact.
- the contact member when a driving force acts on the input member, the contact member contacts the cam-like contact member at a position offset from the direction in which the contact member moves along the guide means and presses the cam-like contact member from above.
- the internal gear on one side moves from or near the top dead center (the internal gear on the other side is at or near its bottom dead center), and from the bottom dead center or its vicinity (the internal gear on the other side , At or near its top dead center).
- the driving force from the input member can be transmitted to the internal gear by a simple structure of the driving force transmission mechanism by contact.
- the invention according to claim 14 is different in configuration from the invention according to claim 11, in the invention according to claim 11, the crank arm, the adduction gear, the fixed gear, and the driving power on both sides of the crankshaft.
- the transmission means, the guide means, and the input member are provided, the invention according to claim 14 is different in the configuration provided on one side of the crankshaft, and the other configuration is common.
- the contact member comes into contact with the cam-like contact member at a position offset from the direction in which the contact member moves along the guide means and is pressed from above.
- a rotational moment is generated in the adduction gear.
- the internal gear on one side moves from or near its top dead center (the internal gear on the other side is at or near its bottom dead center) and moves from its bottom dead center or its vicinity (on the other side).
- the internal gear on the side can roll toward its top dead center or its vicinity).
- FIG. 1 is an external perspective view schematically showing a schematic configuration of a bicycle crank device according to an embodiment.
- FIG. 2 is an external side view showing the relationship between the adduction gear at or near the top dead center and the guide means as viewed from the direction of arrows II-II in FIG.
- FIGS. 3A and 3B relate to the driving force transmitting means in the above embodiment.
- FIG. 3A is an external perspective view showing a contact member of a pedal device
- FIG. 3B is an external perspective view showing a cam-like contact member of an internal gear.
- (C) is an assembled perspective view showing the relative relationship between the guide means and the driving force transmitting means near the top dead center.
- FIG. 4 is a front view showing a cross section of a bicycle pedal crank device according to an example of the above embodiment.
- FIG. 5 is a left side view in a state where illustration of the guide means viewed from the left side in FIG. 4 is omitted.
- FIG. 6 is an external perspective view illustrating the disassembly and disassembly of the pedal crank device of FIG.
- FIG. 7 is an operation explanatory diagram for explaining the effect of a change in the relative position between the contact member of the driving force transmitting means and the cam-like contact member on the rolling of the internal gear.
- FIG. 8 is an external perspective view of a fixed gear according to a modification of the above embodiment.
- FIG. 9 is a front view showing a partially omitted state in which a sprocket-shaped adduction gear meshes with the fixed gear of FIG.
- FIG. 10 is a perspective view of a modified example showing another engagement state of the above embodiment.
- FIG. 10 is a perspective view of a modified example showing another engagement state of the above embodiment.
- FIG. 11 is a front view of a modified example showing still another engagement state of the above embodiment.
- FIGS. 12A and 12B are side views showing a modification of the contact member, wherein FIG. 12A is a first modification and FIG. 12B is a side view showing a second modification.
- FIG. 13 is a side view of a modification of the present embodiment.
- FIG. 14 relates to a modified example of the cam-like contact member, wherein (a) is a side view, (b) is a side view of (a), (c) is a side view of still another modified example, and (d) Is a side view of (c).
- FIG. 15 is a side view showing still another modified example of the cam-like contact member.
- FIG. 16 is a schematic plan view schematically showing still another modified example of the present embodiment.
- FIG. 17 is a schematic external perspective view of still another modified example of the present embodiment.
- 1 is a fixing member (vehicle body), 1 a is a base plate, 2 is a bearing, 2 a is a journal, 3 is a crankshaft (output shaft), 4 L is a left crank arm (crank arm), and 4 R. Is the right crank arm (crank arm), 5 L is the left internal gear (adduct gear), 5 R is the left internal gear (advert gear), and 6 L is the left fixed gear (fixed gear).
- 6 R is the right fixed gear (fixed gear)
- 1 OL and 10 R are guide means
- 10 La and 10 Lb, 10 Ra and 10 Rb are guide rods
- 11 L and 11 R are pedal devices (input members)
- 11 La and 11 Ra are pedals
- 11 Lb and 11 Rb are sliders
- 12 L and 12 R are driving force transmission Means
- 12La and 12Ra are contact members
- 12Lb and 12Rb are cam-like contact members
- 13a is a driving sprocket
- 13b is a driven sprocket
- 13c is a driving sprocket.
- Chains, 40 and 42 are upward movement regulation parts
- 41 Beauty 4 3 is a contact member
- 44 to 49 are cam-like contact members
- 60 and 61 and 62 are fixed gears
- 50 and 63 are adduction gears
- 51 is a stopper
- 85 5 is drive shaft
- 110 is guide means
- 500 is adduction gear
- 500 b is V-shaped groove
- 900 hand cycle
- 91 wheelchair
- 902 is the hand cycle part
- 905 is the handle pedal
- 906 is the chain
- 907 is the front wheel
- L is the axis P of the fixed gear and P1 and the axis P of the adduction gear at top dead center. 2
- P 1 is the axis of the fixed gear
- P 2 is the axis of the adduction gear
- W is the cable member.
- crank device is applied to a bicycle as a vehicle
- the members and parts constituting the crank device are provided as a pair on both the left and right sides with respect to the bicycle body (frame), and have the same shape, configuration, and the like. Therefore, for convenience, the members and parts on the left side are provided. Is appended with L (Left) for the sign, and R (Right) for those on the right.
- the crank device has a crankshaft 3 rotatably supported by bearings 2 of a bicycle body (frame) 1.
- crank arms 4L and 4R that bend and extend in opposite directions in the same plane
- internal gears 5L and 5R that are spur gears having external teeth on the crank arms 4L and 4R.
- fixed gears 6 L and 6 R forming an internal gear are provided on both left sides with respect to the longitudinal axis along the front-rear direction of the bicycle body 1, and the internal gears 5 L and 5 R are planetary gears. It is provided in a state where it is engaged so that it rolls (orbits and rotates).
- the ratio of the number of teeth between the add-on gears 5 L, 5 R and the fixed gears 6 L, 6 R is 1: 2, and the add-on gears 5 L, 5 R roll the fixed gears 6 L, 6 R. It is set to complete one revolution (rotation) when making one lap (orbit).
- Guide means 10L, 10R are vertically arranged on the outer surface of the fixed gears 6L, 6R.
- the guide means 10L and 10R may be any members that can control the slider 11Lb to move along a fixed trajectory, and the material and shape thereof are not limited.
- the guide means 10 and 10 R are, for example, guide rods 10 and a, 10 and b, 10 R a and 1 having two rectangular cross sections. 0 Rb, and the guide rods 10 La, 10 Rb, 10 Ra, 10 Rb are arranged in parallel in the vertical direction, and the pedal devices 11 L, 11 R described later are moved up and down. (It reciprocates while guiding.
- the pedal devices 11 R and 11 R are used to rotatably support the pedals 11 La and 11 Ra and the pedals 11 La and 11 Ra, and the above guide rod 10 L. a, 10 and b, 10 Ra, and 10 Rb.
- the sliders 11 and 12 are formed so as to move between them. With 1 Rb sandwiched between guide rods 10 La, 10 Lb, 10 Ra, and 10 Rb, the axis P 1 of fixed gear 6 L, 6 R or near it (The upper and lower central axes L pass through the center axes P2 of the internal gears 5L and 5R), and slide or slide vertically. See Figure 2).
- the driving force transmitting means 12L Since the structures of the driving force transmitting means provided on the left and right sides are the same, the driving transmitting means 12L arranged on the left side as shown in FIGS. 2 and 3 will be described for convenience.
- the driving force transmission means 12 L is interposed between the pedal device 11 L and the internal gear 5 L, and the contact attached to the tip of the slider 11 Lb of the pedal device 11 L It is formed by a contact-driven driving force transmission mechanism consisting of a member 12La and a plate-like contact member 12Lb attached near the outer peripheral edge of the internal gear 5L. ing.
- the contact member 12La may move relative to the force slider 11Lb fixed to the tip of the slider 11Lb. In short, it is only necessary that the contact member 12La contacts the cam-like contact member 12Lb at the time of input.
- the internal gear 5 when the internal gear is located at or near the top dead center, the upper end surface of the cam-like contact member 12 Lb forms a contact surface, and the lower surface of the contact member 12 La contacts this. It is supposed to.
- the adduction gear 5 When the adduction gear 5 is at or near the top dead center, it comes into contact at a position Q deviated from the vertical center axis L.
- the driving force F from the contact member 12 L a acting on the position Q gives a rotational moment to the adduction gear 5 L, thereby Is transmitted. Therefore, the internal gear 5L is rolled in the direction of arrow B shown in FIG. 2, and the pedal 11La can move downward while being guided by the guide means 10L without thinking. I'm familiar.
- the driving force extracting means 13 in the crank device is formed by providing a driving sprocket 13 a that rotates integrally with the crankshaft 3 on the crankshaft 3 near the bearing 2.
- the driving force extraction unit 1 3 comprises a driving sprocket sheet 1 3 3, for example, a rear wheel (not shown) and rear wheels mounted coaxially Formed by a driven sprocket 13b and a chain 13c wound around and mounted between a driving sprocket 13a and a driven sprocket 13b.
- the driving sprocket 13a is arranged on the L side for easy understanding of the configuration of the entire apparatus.
- FIG. 1 The illustration of the driving sprocket 13a as the power take-out means 13 and the pedal device 11 as the input member is omitted. That is, a substantially square base plate 1a is fixedly mounted on the bicycle frame 1, and a journal 2a as a bearing 2 is horizontally welded to a hole formed in the center thereof. Fixed. A stepped crankshaft 3 (output shaft) is rotatably passed through this journal 2a, and a left crank arm 4L is fixed to the left side of the crankshaft 3 by screws 20. The right crank arm 4R is welded to the right side by welding.
- left crank arm 4L may be welded to the left crank arm 4L instead of being fastened with the screw 20. Instead of welding by welding, bonding may be performed using an adhesive such as a bond.
- These left and right crank arms 4L, 4R are bent and extended in opposite directions in the same plane. That is, the crankshaft 3 rotates integrally with the crankshaft 3 while extending in the opposite directions.
- Shaft members 5Lc and 5Rc are fixed to the left and right crank arms 4L and 4R in a horizontal direction, and are formed as spur gears via space washers 5Ld and 5Rd.
- the left adduction gear 5L and the right adduction gear 5R are mounted so as to be rotatably supported.
- the left fixed gear 6 as an internal gear having a flat external tooth having a ring shape and arranged in the same plane direction as the base plate 1a.
- the L and the right fixed gear 6R are fixed via through bolts 21c passed through the four spacers 21a and 21b, respectively (see FIG. 4).
- Each of the spacers 21 a and 21 b and the port 21 c functions as one component of the frame 1.
- Left and right adduction gears 5L, 5R are incorporated into these left and right fixed gears 6L, 6R so as to be inscribed and connected to each other.
- the gear ratio between the internal gear 5 L, 5 R and the fixed gear 6 L, 6 R is such that the internal gear 5 L, 5 R makes one revolution while rolling on the fixed gear 6 L, 6 R.
- the number of teeth is set so that there is a one-to-two relationship so that one revolution sometimes occurs.
- cam-like contact members 12b are provided, for example, fasteners such as screws (not shown). Attached by However, instead of forming this cam-like contact member 12 Lb as a separate part from the internal gear, it should be formed by a forged product or sheet metal press-formed product that is integrally formed with the internal gear. It is also possible.
- both left and right fixed gears 6 are directed outward in the vertical direction, outside 6 R, and Guide means 10 and 1 OR are provided along the vertical center axis L (see FIG. 2).
- the pedals 11 and 11 R sliders 11 Lb and 11 Rb can be moved linearly up and down or linearly up and down along the vertical center axis L. 10 L a and 10 L b , 10 R a and 10 R b.
- the contact members 12La, 12Ra attached to the sliders 11Lb, 11Rb are changed to the cam-like contact members 12Lb, 1R provided on the internal gears 5L, 5R.
- the driving force transmission means 12 L, 12 R that is, a driving force transmission mechanism by contact is formed so as to be capable of contacting with 2 Rb.
- the contact point between the contact member of the driving force transmission mechanism and the force-like contact member by contact is such that the adduction gears 5L and 5R are fixed to the fixed gear 6 and the top dead center with respect to 6R. When it is near, it is set at a position deviated from the vertical center axis L (see Fig. 2).
- a driving sprocket 13a for taking out a rotational force is provided on the output shaft 3a between the base plate 1a and the right fixed gear 6R so as to be able to rotate integrally with the output shaft 3.
- the chain 13c (see Fig. 1) is wound around and connected to the driven sprocket 13b on the rear wheel side.
- crank device is manufactured by assembling the above-described components as shown in an exploded perspective view of FIG.
- reference numerals 23 L and 23 are press-fitted into the shaft ends of the shaft members 51_ (; and 5Rc, and the internal gears 5L and 5 are connected to the shaft members 51_ £ ; 2 shows a push nut for mounting.
- FIG. 7 is an operation explanatory diagram for explaining the effect of a change in the relative position between the contact member of the driving force transmitting means and the cam-like contact member on the rolling of the internal gear.
- the outer solid line is a fixed gear
- the inner gear shown by the solid line is the inner gear 5 L on the left
- the inner gear shown by the dotted line is the inner gear 5 R on the right.
- the left adduction gear 5 is located at or near the top dead center.
- the right adduction gear 5R located on the opposite side is located at or near the bottom dead center (state 0 ° shown in FIG. 7).
- the adduction gear 5 rotates in the direction of arrow C (clockwise) and revolves counterclockwise.
- a rotational torque is generated in the crankshaft 3 due to the revolution of the internal gear 5L, and the chain 13c is driven in the direction of arrow A through the driving sprocket 13a, which is the power take-out means 13. You will be able to run your bicycle forward.
- the right adder gear 5R on the opposite side is at or near the bottom dead center and rolls while engaging with the fixed gear 6R while drawing a trajectory shown by a dotted line. That is, the cam-like contact member 12 Rb of the internal gear 5 R The contact member 12Ra is in contact from below, and the force of lifting the contact member 12Ra upward according to the rolling of the internal gear 5R continues to act. Thereby, the right pedal device 11 R (see FIGS. 1 and 2) moves upward along the guide means 10 R attached to the right fixed gear 6 R.
- the depressing force stops working, and conversely, the top dead center or The driving force, that is, the depressing force is applied to the right pedal device 11R located in the vicinity thereof.
- the cam-like contact member 12 Lb provided on the left pedal device 11 L that has passed through the bottom dead center is located below the contact member 12 La and the contact member 12 La.
- the left pedal device 11 L contacts the guide member 10 L at or near the top dead center while maintaining contact between the contact member and the force-like contact member in the direction of pushing up from below. Move to the position. By repeating the operation of depressing the pedal device, the bicycle can be driven.
- the contact members 12 La, 12 Ra provided on the pedal devices 11 L, 11 R are changed to the cam-like contact members 1. 2 Lb, 1 2 Rb and internal gear 5 L, 5
- the contact portion between the contact member and the force-like contact member at or near the top dead center of R is set to be in a position deviated in the same direction with respect to the vertical center axis L (see Fig. 2). Therefore, since there is no thought point, that is, no dead center, the pedal device 11 L and 11 R do not think at or near the top dead center, and the bicycle can continue to travel forward.
- crank device including a three-wheeled bicycle
- the present invention can be applied to a vehicle such as a pedal crank device, a vehicle crank pedal device using the above-described crank device, and further to a vehicle crank pedal device and a vehicle using the vehicle crank pedal device.
- a vehicle such as a pedal crank device, a vehicle crank pedal device using the above-described crank device, and further to a vehicle crank pedal device and a vehicle using the vehicle crank pedal device.
- the guide means 10 L and 10 R have been described as having a vertical linear shape.
- the means 110 may be formed to have a curved shape, a bent shape, or a meandering shape, or a shape formed by appropriately combining these shapes. May be adopted. In this way, it is possible to select and attach a guide means having a shape according to the body shape of the person riding the vehicle, running conditions, and the like. It is also possible to adopt a mode in which guide means having various shapes can be appropriately detachably attached.
- the guide means 10 and 1 OR should be inclined not upwards but downwards rather than vertically. It is also possible to adopt a structure in which they are arranged at different locations.
- the slider 11 Lb (and 11 Rb) guided by the guide means 10 L and 10 R is connected to the fixed gear shaft center P 1 at the top dead center or bottom dead center position. Although it is provided so as to reciprocate along the vertical center axis L passing through the axis P 2 of the adduction gear, instead, it is configured to reciprocate at a biased position near the vertical center axis L. It may be.
- the fixed gears 6L and 6R formed by cutting the spur teeth are used as the fixed gears
- an internal gear 5 ° in combination
- the engaging devices are provided on the left and right sides of a vehicle frame such as a bicycle, respectively. Will be described as a representative. That is, as shown in FIG. 8 (a), the fixed gear 60 has a pair of ring plate-shaped bases 60a as covers and a plurality of pin members 60b arranged at intervals between them.
- it is formed in a form having substantially a chain function.
- the add-on gear 50 rotating around the inside of the fixed gear 60 or the fixed gear 61 may be formed in the form of a sprocket.
- an interlocking device is formed by interlocking the chain form and the sprocket form.
- the chain may be directly attached to the fixed gear 60.
- the form of the sprocket does not have to be a circle, and for example, an elliptical sprocket can be adopted.
- the engaging device is formed in the form of a chain-and-sprocket engagement, so that gravel or the like enters the chain-type or sprocket-shaped engagement portion during traveling.
- This makes it possible to secure the safe running of the vehicle, to form the add-on gear or the fixed gear at low cost, and to obtain a crank device, a vehicle, and the like with a reduced weight.
- As another embodiment of the engaging device as shown in FIG. 10, as the fixed gear, a sprocket-shaped fixed gear 62 having sprocket teeth 62 a is formed.
- the engaging device is formed in the form of a chain 'and' sprocket
- the gravel or the like is in the form of a chain or sprocket while traveling.
- a crank device, a rider, etc. which can prevent intrusion into a part, can ensure safe running, can form an add-on gear or a fixed gear at low cost, and reduce the weight.
- a modified example as shown in FIG. 11 can be used as another engaging device. That is, in the above embodiment, the adduction gears 5L and 5R are formed into a mode in which the fixed gears 6 and the inner gears 6R are rotated while being joined together, but instead, the adduction gears as shown in FIG. On the outer circumference of each tooth 500 a of the gear 500, 1206
- the V-shaped bulge groove 500b is cut off, and the fixed gear side has teeth that match the teeth 500a of the internal gear 500 and the pulley groove 500b
- a mode in which a toothed belt form is fixedly provided on the adduction gear so as to mesh with the teeth on the fixed gear side may be adopted.
- the adduction gears 5 L, 5 R, and the fixed gears 6 and 6 R are formed and combined with spur gears, but instead formed with gears such as helical gears and bevel gears. You may make it do.
- the left and right crank arms 4 and 4 R are formed so as to extend in opposite directions so as to form 180 ° with respect to the crankshaft 3. Needless to say, it may not be formed, and may be formed in a state of extending in a slightly bent shape.
- the contact member 1 2 La which is simply formed in a rod shape as the contact member
- the pedal device 11 L, 11 R (input member) only comes into contact with the cam-like contact member from above only by its own weight or depressing force.
- the contact member on the input member side forming the transmission mechanism and the force-like contact member on the internal gear side are configured to be able to separate from each other.
- the contact portion provided with the vertical movement regulating portions 40 and 42 By using the members 41 and 43, the input member may suddenly act on the input member while reciprocating along the guide means, causing the pedal device to rise.
- the upward movement regulating portions 40, 42 are engaged from below the cam-like contact member 12b. For this reason, it is possible to prevent the pedal device 11 or 11 R from moving upward by a predetermined value or more along the guide means 10 and 10 R, and the input member may come off the guide means. That is, the pedal device can be driven in a stable state.
- a structure as shown in FIG. 13 can be adopted. That is, a guide member G such as a gear, a roller, or a pulley is attached to the frame 1 side, and the left pedal device 11 L and the right pedal device 11 R via the guide member G are connected to a cable member. (For example, a chain, a wire, a spring, and the like)
- a tensioner T for tensioning the rope W in the frame 1 is provided. You can also.
- the left and right pedal devices 11 L and 11 R are connected by the rope member W, when the pedals are alternately depressed, they always reciprocate in cooperation with the rope member W. . Therefore, the left and right pedal devices can be prevented from moving up and down extra.
- the cam-like contact member 12b which comes into contact with the contact member 12a of the driving force transmission means 12, in addition to the above embodiment, as shown in FIGS. 14 (a) and (b), As shown in Fig. 14 (c) and (d), the cam-like contact member 45 consisting of a small circle and an ellipse, as shown in Fig. 14 (c) and (d), and as shown in Fig.
- the cam-like contact member 48 consisting of a small circle and a large circle as shown in Fig. 15 (c), and three small circles as shown in Fig. 15 (d).
- the internal contact gear 5 may be provided with a force-like contact member 49 or the like in the arranged mode.
- a rolling member such as a roller on the cam-like contact members 12 Lb and 12 Rb, and to bring the contact members 12 La and 12 Ra into contact therewith. is there. It is also possible to provide a roller or other rolling member on the contact members 12La and 12Ra, and to contact the cam-like contact members 12Lb and 12Rb with this. It is. According to these, the contact resistance can be reduced, and it is possible to reduce wear in the driving force transmission mechanism due to the contact.
- the driving force transmitting means 12 and 12 R are formed by a contact driving force transmitting mechanism including a contact member and a cam-like contact member (see FIG. 7).
- This is the force acting on the cam-like contact members 12 Lb and 12 Rb with the help of the driving force such as the depressing force, in addition to the gravity acting on the contact members.
- coil springs or other means such as allowing free rotation between the contact members and the force-like contact members.
- the contact member and the force-like contact member may be configured in a manner similar to a so-called positive cam.
- a stopper 51 as shown in FIG. 1 may be provided above the guide means 10.
- two guide rods 10La, 10Lb, 10Ra, and 10Rb are arranged in parallel on each side as guide means.
- the cross section of the guide rod may be U-shaped or U-shaped, and the guide roller may be arranged so as to roll in the internal groove. This makes it possible to make the up and down movement of the pedal device 11 and 11R smoother and more stable.
- the guide means 1OL and 1OR may be formed by one guide rod.
- the guide roller or slider member is formed in a U-shape or U-shape in cross section, and the guide roller or slider member is housed in such a manner that it does not deviate from the trajectory of vertical movement, so that it rolls or slides. You can also.
- a cover may be attached so as to cover the internal gear and the fixed gear so that the combined state of the internal gear 5 and 5R and the fixed gears 6L and 6R cannot be seen from the outside.
- a slit may be formed on the cover to allow the pedal device 11 to move up and down 11 R.
- the slit itself may be formed so as to have the function of the guide means. According to this modification, it is possible to smoothly avoid a situation in which the bicycle suddenly stops due to clothes, stepping stones, or the like entering the joint between the gears 5, 5R, 6, and 6R. Will be able to do it.
- the driving force take-out means is formed by a winding link mechanism formed by winding a chain 13c between a driving sprocket 13a and a driven sprocket 13b.
- Force for example, as shown in Fig. 16, it is possible to adopt a structure in which power is transmitted by a shaft drive system. That is, instead of the driving sprocket 13a, a bevel gear 81 is attached to the crankshaft 3 so as to be able to rotate integrally, and a bevel gear 82 is provided in place of the driven rear wheel sprocket 13c, and the chain 1 3c Instead, a drive shaft 85 having bevel gears 83 and 84 at both ends is provided.
- the bevel gear 81 is fitted to the bevel gear 83 of the drive shaft 85, and the bevel gear 82 is fitted to the bevel gear 84 of the drive shaft 85, respectively.
- the force depressed on the pedal 11 can be efficiently converted into rotational motion and transmitted to the driven side without being loosened like the chain 13c.
- a hand cycle 9 is formed by detachably attaching the hand cycle section 9 02 to the wheelchair section 9 0 1 or by fixedly attaching the hand cycle section 9 0 2. It is also possible to incorporate it into the frame 93 of 00 and drive it with the power of hands and arms. That is, in the present modified example, the crank arms on the left and right sides of the crankshaft are extended in the direction of the same phase angle, that is, in such a direction as to have a symmetrical arrangement.
- the driving force is to rotate the internal gear and to obtain a rotational force extracting means such as the chain 906.
- the front wheel 907 can be driven via the chain 906 to drive the hand cycle 900.
- the occupant of the wheelchair unit 901 can easily operate the handcycle 900 by simply operating the handle-type pedal 905 by hand.
- the hand cycle can be easily operated even by elderly people with poor leg strength, disabled persons, and the like. Has the effect of contributing to muscle training and physical strength improvement.
- the handle-type pedal 905 was provided symmetrically with respect to the main body of the hand cycle, and the left-right drive operation was performed simultaneously. Needless to say, it is possible to do so in such a manner.
- the internal gear performs a rolling motion (revolving motion) like a planetary gear around the crankshaft center while being engaged with the fixed gear, and The gear itself rotates around the crank arm.
- the adduction gear revolves while rotating, so that the linear or curved reciprocating motion of the input member is converted into a circular motion by the crank arm.
- the driving force due to the rotational motion is taken out from the driving force take-out means provided on the crankshaft.
- the input member can move along the guide means without thinking, and it is possible to obtain a crank device that can be smoothly and efficiently converted into rotational motion and that can suppress energy loss.
- the driving force take-out means is not based on a winding link mechanism such as a sprocket and a chain engaged with the sprocket, or a pulley and a belt engaged with the pulley, but is based on a shaft drive system comprising a bevel gear and a drive shaft. It is also possible to form the system, and in such a case, there is no play or slack in the wrapping link mechanism, so the rotational force applied to the pedal is efficiently transmitted to the rear wheel without wasting This has the effect of improving energy transmission efficiency.
- one of the internal gears and the other internal gear are related positions that are always circumscribed at or near the center point of the fixed gear when viewed from the side. It is laid out to come. For this reason, when each adduction gear rotates by one rotation with respect to the fixed gear, it becomes possible to make one rotation inside the fixed gear and revolve, and as a result, the input member moves in the direction along the upper and lower central axes. The reciprocating motion can be smoothly realized, whereby the driving force applied to the input member can be more efficiently converted into the rotational motion.
- the driving force when a driving force acts on the input member, the driving force is a driving force transmitting means.
- a rotational moment is generated in the internal gear.
- the internal gear on one side moves from the top dead center or its vicinity (the internal gear on the other side is at or near its bottom dead center) to its bottom dead center or its vicinity (the internal gear on the other side , At or near its top dead center).
- the simple structure of the driving force transmission mechanism by contact can provide the effect that the driving force from the input member can be transmitted to the adduction gear.
- the input member when the input member is guided by the guide means and reciprocates, the input member reciprocates along the axis passing through the vertical center passing through the axis of the fixed gear or the vicinity thereof. . Therefore, the contact portion between the contact member and the cam-like contact member is set at a position deviated from the axis passing through the vertical dead center. Therefore, the driving force applied to the input member causes the contact member to press the cam-like contact member on the adduction gear side from above, so that a rotational moment acts on the adduction gear.
- the adduction gear is rolled while engaging with the fixed gear, the crankshaft rotates, and the rotational force is output from the driving force extracting means, and the reciprocating motion of the input member is efficiently converted into rotational motion.
- the input member is linked to the guide means through the driving force transmitting means formed by the driving force transmitting mechanism by contact, but is driven by contact.
- the contact member on the input member side forming the force transmission mechanism and the force-like contact member on the internal gear side only contact each other, and are configured to be able to separate from each other in opposite directions.
- the cam-like contact member engages with the upward movement amount regulating means, thereby preventing the upward movement beyond a predetermined value and displacing the input member from the guiding means. This ensures that the input member can be driven in a stable state.
- one input member side and the other input member side are connected to each other through a cable member such as a chain or a wire.
- a cable member such as a chain or a wire.
- the fixed gear 60 includes, for example, a plurality of pin members between a pair of ring plate bases.
- Substantially chain machines that are arranged at intervals It is formed to have a function. Since the adduction gear that rotates by meshing with the inside of the fixed gear is formed in the form of a sprocket, the engagement between the chain and the sprocket constitutes a reengaging device. However, it is possible to smoothly transmit the depressing force of the pedal.
- the engaging device is formed in the form of a chain 'and' sprocket, it is necessary to prevent gravel and the like from entering the engaging portion of the chain sprocket during traveling.
- a crank device, a vehicle, and the like which can reduce the weight by reducing the weight of the internal gear or the fixed gear at a low cost.
- the fixed gear is formed as a sprocket-shaped fixed gear having sprocket teeth, and as an internal gear rotating around the inside of the fixed gear, the fixed gear is connected to the sprocket teeth. Since the matching pin-shaped teeth are formed on the chain-type adduction gear with a space between them, the engaging device is formed as a chain-and-sprocket engaging shape. By preventing gravel and the like from entering the mating parts of the chain sprocket during driving, safe driving can be ensured, and the add-on gear or fixed gear can be formed at low cost and weight reduction. Thus, it is possible to obtain a crank device that achieves the above.
- a V-shaped pulley groove is formed on the outer periphery of each tooth of the internal gear, and the fixed gear side has teeth that mesh with each tooth of the internal gear.
- a toothed belt is provided so as to engage with the pulley groove, and the internal gear engages with the toothed belt. Therefore, in addition to the same effects as those of the inventions according to claims 7 and 8, This has the effect of obtaining a mating device (mechanism) with reduced vibration.
- the crank device is used for riding a two-wheeled bicycle, a three-wheeled bicycle, a human-powered airplane, a water-powered man-powered boat, or the like. It has an advantageous effect that it can be applied to a product.
- the crank crank device for a vehicle such as a bicycle such as a two-wheeled bicycle or a three-wheeled bicycle, a water pedal boat, and a human powered airplane is used.
- a depressing force which is a driving force
- the pedal device moves (reciprocates) while being guided by guide means.
- the depressing force applied to the pedal device is transmitted to the adduction gear at a position deviated from the vertical center axis via the driving force transmitting means, thereby generating a rotational moment in the adduction gear.
- the adduction gear makes a rolling motion (revolution) like a planetary gear around the crankshaft center while engaging with the fixed gear, and itself rotates around the crank arm.
- the motion of the pedal device is converted into a rotational motion for rotating the crank arm, and the rotational force generated by the rotational motion is provided on the crankshaft.
- it is taken out (transmitted) from a driving force take-out means formed by a sprocket or the like to an external member such as a chain. Therefore, even when the internal gear is at the top dead center, the rotational moment acts on the internal gear even when the internal gear is at the top dead center. It is possible to obtain a crank device which is immediately and smoothly converted into a rotational motion without thinking about the device, and which is excellent in energy conversion efficiency.
- the one internal gear and the other internal gear are laid out so as to always circumscribe each other at or near the center point of the fixed gear when viewed from the side. Therefore, when each adduction gear rotates by one rotation with respect to the fixed gear, it becomes possible to rotate around the inside of the fixed gear and revolve, and as a result, the vertical center of the pedal device The reciprocating motion in the direction along the axis can be smoothly realized, whereby the driving force applied to the pedal device can be converted to the rotational motion more efficiently.
- the contact portion between the contact member and the cam-like contact member is set at a position deviated from the axis passing through the vertical dead center, it is added to the pedal device side.
- the contact member presses the force-like contact member on the side of the internal gear from above, so that a rotational moment acts on the internal gear.
- the adduction gear is rolled while being engaged with the fixed gear without thinking at or near the top dead center, the crankshaft rotates, the rotational force is output from the driving force extracting means, and the input member This has the effect that the reciprocating motion of the robot can be efficiently converted into rotary motion.
- the contact member side engages with the upward-movement-restricting means to prevent upward movement above a predetermined value.
- the pedal device is prevented from being disengaged from the guide means, and the pedal device can be driven in a stable state.
- one pedal device side and the other pedal device side are connected to each other through a cable, such as a chain or a wire, and the cable is connected to a spring or the like.
- a cable such as a chain or a wire
- the cable is connected to a spring or the like.
- the engagement device between the chain and the sprocket constitutes an engagement device, so that the pedal depressing force of a vehicle such as a bicycle can be smoothly reduced. It is possible to communicate.
- the engagement device is formed in the form of engagement of a chain 'and' sprocket, gravel or the like is engaged with the chain sprocket while the vehicle such as a bicycle is running.
- a vehicle crank pedal device that can prevent intrusion into the vehicle, secure driving safety, and can be formed at a low cost with an add-on gear or fixed gear, and can reduce the weight. Play.
- the fixed gear is formed as a sprocket-shaped fixed gear having sprocket teeth, and engages with the sprocket teeth as an adduction gear rotating inside the fixed gear. Since the pin-shaped teeth are formed on the chain-type internal gear with spacing, the engaging device is formed in the form of a chain 'and' sprocket. This prevents gravel and the like from entering the chain and sprocket mating parts during the running of vehicles such as turning vehicles, not only ensuring safe running, but also making the internal gears or fixed gears inexpensive. It is possible to obtain a vehicular crank pedal device which can be formed and has reduced weight.
- a V-shaped burley groove is cut on the outer periphery of each tooth of the internal gear, and the internal gear is provided on the fixed gear side.
- a toothed belt is provided so that each tooth of the gear engages with the pulley groove, and the adduction gear meshes with this toothed belt, so vibration is suppressed. It has the effect that a mating device (mechanism) can be obtained.
- a crank pedal device for a vehicle can be used for a two-wheeled bicycle, a three-wheeled bicycle, a human-powered airplane, and a water-powered foot pedal.
- a vehicle such as a hook-type port
- the add-on gear makes a rolling motion (revolution movement) like a planetary gear around the crankshaft center while being combined with the fixed gear, and the add-on gear itself also It rotates around the crank arm.
- the internal gear revolves while rotating, so that the linear or curved reciprocating motion of the input member is converted into a rotating circular motion by the crank arm.
- the driving force due to the rotation is taken out from the driving force take-out means provided on the crankshaft.
- the driving force applied to the input member causes the rotation of the internal gear at or near the top dead center due to the rotational moment acting on the internal gear.
- the input member can move along the guide means without thinking, and it is possible to obtain a crank device that can be smoothly and efficiently converted into rotational motion and that can suppress energy loss.
- the add-on gear rotates like a planetary gear around the crank axis while engaging with the fixed gear (revolution movement).
- the adduction gear itself rotates around the crank arm.
- the internal gear revolves while rotating, so that the linear or curved reciprocating motion of the input member is converted into a circular motion by the crank arm.
- the driving force due to the rotational movement is taken out from the driving force take-out means provided on the crankshaft. Be sent out.
- the driving force applied to the input member is increased by the rotational moment acting on the internal gear at or near the top dead center.
- the input member can move along the guide means without thinking, and it can be smoothly and efficiently converted into rotational motion.
- Even handicapped or elderly people with poor leg strength can use their own hand power.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Transmission Devices (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005512125A JP4021917B2 (ja) | 2003-07-29 | 2004-07-29 | クランクペダル装置及びそれを備えた乗り物 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003203390 | 2003-07-29 | ||
JP2003-203390 | 2003-07-29 |
Publications (1)
Publication Number | Publication Date |
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WO2005009832A1 true WO2005009832A1 (ja) | 2005-02-03 |
Family
ID=34100630
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/011206 WO2005009832A1 (ja) | 2003-07-29 | 2004-07-29 | クランクペダル装置及びそれを備えた乗り物 |
Country Status (2)
Country | Link |
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JP (1) | JP4021917B2 (ja) |
WO (1) | WO2005009832A1 (ja) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202005013966U1 (de) * | 2005-09-03 | 2006-10-12 | Schuhwerk, Christoph | Kurbeltrieb mit einer Vorrichtung der periodischen Änderung der Länge von dessen wirksamem Hebel |
JP2007297040A (ja) * | 2006-05-04 | 2007-11-15 | Campagnolo Spa | 自転車のクランクアーム・アセンブリ |
CN101973355A (zh) * | 2010-10-11 | 2011-02-16 | 胡章地 | 杠杆棘轮联动的自行车 |
US8302504B2 (en) | 2006-02-20 | 2012-11-06 | Campagnolo S.R.L. | Bicycle bottom bracket assembly |
JP2013107642A (ja) * | 2006-05-04 | 2013-06-06 | Campagnolo Spa | 自転車のクランクアーム・アセンブリ |
US8590421B2 (en) | 2006-03-03 | 2013-11-26 | Campagnolo S.R.L. | Bicycle bottom bracket assembly and adapter device for such an assembly |
US8689662B2 (en) | 2007-12-05 | 2014-04-08 | Campagnolo S.R.L. | Bottom bracket assembly for a bicycle and shaft for such an assembly |
US8770061B2 (en) | 2005-12-02 | 2014-07-08 | Campagnolo S.R.L. | Crank assembly for a bicycle bottom bracket assembly, shaft and crank arm thereof |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017107090A1 (zh) * | 2015-12-23 | 2017-06-29 | 刘卫军 | 行星曲轴传动机构及自行车 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1579083A (en) * | 1922-03-24 | 1926-03-30 | Walter G Collins | Mechanical movement |
JPS5751588A (en) * | 1980-09-12 | 1982-03-26 | Masashi Yamashita | Bicycle |
JPH0479785U (ja) * | 1990-11-26 | 1992-07-10 | ||
WO2001059329A1 (en) * | 2000-02-08 | 2001-08-16 | Wiseman Technologies, Inc. | Hypocycloid engine |
-
2004
- 2004-07-29 JP JP2005512125A patent/JP4021917B2/ja not_active Expired - Fee Related
- 2004-07-29 WO PCT/JP2004/011206 patent/WO2005009832A1/ja active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1579083A (en) * | 1922-03-24 | 1926-03-30 | Walter G Collins | Mechanical movement |
JPS5751588A (en) * | 1980-09-12 | 1982-03-26 | Masashi Yamashita | Bicycle |
JPH0479785U (ja) * | 1990-11-26 | 1992-07-10 | ||
WO2001059329A1 (en) * | 2000-02-08 | 2001-08-16 | Wiseman Technologies, Inc. | Hypocycloid engine |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202005013966U1 (de) * | 2005-09-03 | 2006-10-12 | Schuhwerk, Christoph | Kurbeltrieb mit einer Vorrichtung der periodischen Änderung der Länge von dessen wirksamem Hebel |
WO2007025779A2 (de) * | 2005-09-03 | 2007-03-08 | Christoph Schuhwerk | Kurbeltrieb mit einer vorrichtung zur periodischen änderung der länge von dessen wirksamen hebel |
WO2007025779A3 (de) * | 2005-09-03 | 2007-05-03 | Christoph Schuhwerk | Kurbeltrieb mit einer vorrichtung zur periodischen änderung der länge von dessen wirksamen hebel |
US8770061B2 (en) | 2005-12-02 | 2014-07-08 | Campagnolo S.R.L. | Crank assembly for a bicycle bottom bracket assembly, shaft and crank arm thereof |
US8302504B2 (en) | 2006-02-20 | 2012-11-06 | Campagnolo S.R.L. | Bicycle bottom bracket assembly |
US8590421B2 (en) | 2006-03-03 | 2013-11-26 | Campagnolo S.R.L. | Bicycle bottom bracket assembly and adapter device for such an assembly |
JP2007297040A (ja) * | 2006-05-04 | 2007-11-15 | Campagnolo Spa | 自転車のクランクアーム・アセンブリ |
JP2013107642A (ja) * | 2006-05-04 | 2013-06-06 | Campagnolo Spa | 自転車のクランクアーム・アセンブリ |
US8616084B2 (en) | 2006-05-04 | 2013-12-31 | Campagnolo S.R.L. | Bicycle crank arm assembly |
US8689662B2 (en) | 2007-12-05 | 2014-04-08 | Campagnolo S.R.L. | Bottom bracket assembly for a bicycle and shaft for such an assembly |
CN101973355A (zh) * | 2010-10-11 | 2011-02-16 | 胡章地 | 杠杆棘轮联动的自行车 |
Also Published As
Publication number | Publication date |
---|---|
JP4021917B2 (ja) | 2007-12-12 |
JPWO2005009832A1 (ja) | 2006-10-19 |
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