JP4021917B2 - Crank pedal device and vehicle equipped with the same - Google Patents

Description

  The present invention converts the reciprocating motion of the input means (pedal device) in the vertical direction into rotational motion, thereby efficiently converting the driving force (stepping force) applied to the input means into energy of rotational motion. The present invention relates to a crank device, a vehicle equipped with the crank device, a vehicle crank pedal device, and a vehicle.

Normally, in a crank pedal device provided in the self-rotating army, the crankshaft is rotated as it is through the crank arm by a rotary motion that depresses the pedal toward the bottom dead center, and is wound around a sprocket that is integrally fixed to the crankshaft. The rear wheel is driven by rotating the sprocket of the rear wheel through the chain. However, when the pedal is depressed and rotational motion is applied to the crankshaft, the weight may be moved left and right and back and forth , and the pedal may be depressed, causing the steering wheel to swing and detracting from the power transmission efficiency of the crank device. End up.

Therefore, for example, a technique as disclosed in Patent Document 1 is conventionally known as a technique for solving the above-described problems. In the bicycle described in Patent Document 1, instead of eliminating the crankshaft, a pair of upper and lower sprockets are arranged on the left and right sides, and a pair of chains are wound around the pair of upper and lower sprockets provided on the left and right sides. The pedals are connected via a single rope so as to be engaged with and disengaged from each other in the tight side section of the chain. As a result, when the left pedal is depressed from the top to the bottom, the left pedal engages with the left chain and rotates the left sprocket integrally, while the right pedal separates from the right chain by the suspension force acting on the rope and moves upward. Just move. Next, when the right pedal is depressed, the right pedal engages with the right chain to rotate the right chain, and the right sprocket is driven to rotate synchronously. At this time, the left pedal moves upward while being disengaged from the left chain while being suspended by a rope. In this way, by eliminating the crank mechanism, it is possible to transmit the driving force to the rear transportation and travel by repeating the stepping operation of the left and right pedals by linear movement without rotating the pedals. It is what has become.

Japanese Utility Model Publication No. 2-44628

  However, in the above bicycle, although the crank mechanism has been eliminated, four sprockets arranged on the left and right of the vehicle body by a linear motion from the top to the bottom, two chains, a rope connecting the left and right pedals, Since a mechanism for engaging and disengaging the pedal from the chain is required, there is a problem that the structure is complicated and the weight of the vehicle body is greatly increased.

  The present invention has been devised for the purpose of solving such problems, and the driving force applied to the input means by converting the reciprocating motion of the human power means (pedal device) in the vertical direction into rotational motion. It is an object (problem) to provide a crank device that efficiently converts (stepping force) into energy of rotational motion, a vehicle including the crank device, a vehicle crank pedal device, and a vehicle.

The present invention has been devised to solve the above problems, and the following measures have been taken.
That is, in the first aspect of the present invention, the crankshaft that is rotatably provided on the fixed member via the bearing portion, the crank arms that bend and extend on both sides of the crankshaft, and the crank arms that are rotatably provided. A pair of internal gears that rotate inward, a pair of fixed gears that are provided on the fixed member side, and mesh with each other so that each internal gear is rotated (revolved) while rotating as a planetary gear. A pair of guide means provided on the gear side, a pair of input members for inputting a driving force guided by these guide means so as to reciprocate between the top dead center and the bottom dead center; and A driving force applied to the input member is transmitted to each of the internal gears when the internal gear is interposed between the input member and each of the internal gears and is at or near top dead center. Rotate the above crank arms. That a pair of driving force transmitting means, and provided on the crankshaft, characterized by comprising a driving force extraction means for extracting the driving force to the outside.
In the present invention, a gear means a member having a function of transmitting power by meshing contact, and includes a member such as a sprocket and a toothed belt.

  By adopting such a configuration, in the present invention, when a driving force that presses down (steps on) one input member from below is applied (loaded), the input member moves while being guided by the guide means. To 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. When the input member on one side is at or near top dead center and a driving force is applied to the input member on one side, the driving force is transmitted to the internal gear through the driving force transmitting means. The As a result, the input member on one side moves from the top dead center or the vicinity thereof to the bottom dead center or the vicinity thereof.

  The input member on the other side moves from the bottom dead center or the vicinity thereof to the top dead center or the vicinity thereof via the driving force transmission means provided on the other side. That is, when a driving force is applied to the input member on one side, the input member moves while being guided by the guide means. At this time, an internal rotation gear at or near the top dead center is caused to generate a rotational moment due to the driving force via the driving force transmitting means, and is rotated inward.

  As a result, the internal gear rotates in a planetary gear manner (revolution motion) around the crankshaft while meshing with the fixed gear, and the internal gear itself also rotates around the crank arm. The internal rotation gear revolves while rotating, so that the linear or curvilinear reciprocating motion of the input member is converted to a crank arm as a rotational circular motion. In this way, by alternately applying linear or curved reciprocating motion to the pair of input members, the driving force by the rotational motion is taken out from the driving force take-out means provided on the crankshaft. For this reason, even when the internal gear is at or near the top dead center, the driving force applied to the input member is the internal gear at or near the top dead center due to the rotational moment acting on the internal gear. The input member can be moved along the guide means without thinking, and a crank device can be obtained that can be smoothly and efficiently converted into a rotational motion and suppress energy loss.

  In addition, the driving force extraction means may be 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 therewith, or a pulley and a belt engaged therewith. In such a case, there is no play or slack in the winding link mechanism, so that the rotational force applied to the pedal can be efficiently transmitted to the rear wheel without wasting it, and as a result, energy transmission efficiency Can be improved.

  Next, the invention described in claim 2 will be described. The basic structure of the present invention is the same as that of the first aspect described above, but the feature of the present invention is that, in addition to the above structure, the invention of the second aspect It is characterized in that the gear ratio between the rotating gear and each of the fixed gears is formed so as to make one rotation when the inner rotating gear rolls around the fixed gear and makes one turn.

  By adopting such a configuration, the present invention has the following effects in addition to the above-described aspect of the present invention. That is, one internal gear and the other internal gear are laid out so that they are always circumscribed at the center point of the fixed gear or in the vicinity thereof when viewed from the side. For this reason, when each internal rotation gear rotates by one rotation with respect to the fixed gear, it becomes possible to revolve by rotating once inside the fixed gear, and as a result, in the direction along the vertical center axis of the input member. The reciprocating motion can be realized smoothly, whereby the driving force applied to the input member can be more efficiently converted to the rotational motion.

  Further, the invention according to claim 3 relates to the crank device according to claim 1 or 2, wherein each of the driving force transmitting means is in contact with each of the contact members provided on the side of each of the input members, and these contact members. In addition, it is formed by a driving force transmission mechanism by contact, which is constituted by each cam-like contact member provided on the side of each internal gear.

  In the invention described in claim 3, when a driving force is applied to the input member, the contact member contacts the cam-like contact member at a position offset from the direction of movement along the guide means and is pressed from above. Thus, a rotational moment is generated in the internal gear. As a result, the internal gear on one side is at or near its top dead center (the internal gear on the other side is at or near its bottom dead center), and the bottom dead center or its vicinity (the internal gear on the other side is , Its top dead center or its vicinity). In this way, the driving force from the input member can be transmitted to the internal gear by a simple structure called a driving force transmission mechanism by contact.

  According to a fourth aspect of the present invention, there is provided the crank device according to the third aspect of the present invention, guided between the top dead center or the vicinity thereof and the bottom dead center or the vicinity of the bottom dead center. Each reciprocating input member reciprocates along an axis passing through the top and bottom dead center passing through the shaft center of each fixed gear or the vicinity thereof, and each inner gear is moved to the top dead center or the vicinity thereof. In some cases, the contact portion between the contact member of the driving force transmission mechanism by the contact and the cam-like contact member is set at a position deviated from an axis passing through the top and bottom dead centers.

In the invention according to claim 4, when the input member reciprocates while being guided by the guide means, the input member moves up and down passing through the shaft center of the fixed gear or the vicinity thereof when each internal gear is at or near the top dead center. Reciprocates along an axis passing through the dead center. 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 top and bottom dead centers, the driving force applied to the input member side is driven by the contact member on the inner gear side. When the contact member is pressed from above, a rotational moment acts on the internal gear. For this reason, the internal rotation gear is rolled while meshing with the fixed gear, the crankshaft rotates, the rotational force is output from the driving force extracting means, and the reciprocating motion of the input member is efficiently converted into the rotational motion. Will be able to.

  According to a fifth aspect of the present invention, in the crank device according to the third or fourth aspect of the present invention, an upward movement amount regulating means for regulating an upward movement amount is provided on each contact member of the driving force transmission mechanism by the contact. It is characterized by that.

In the invention according to claim 5, although the input member is linked to the guide means via the driving force transmission means formed by the contact driving force transmission mechanism, the input member forms the driving force transmission mechanism by contact. The contact member on the input member side and the cam-like contact member on the internal gear side are only in contact with each other, and can be separated in the opposite directions. For this reason, even when an impact force is applied to the input member unexpectedly while the input member is reciprocating along the guide means, the movement amount regulating means for regulating the upward movement amount on the contact member side. Since the cam-like contact member is engaged with the upward movement amount regulating means, the upward movement beyond a predetermined value is prevented and the input member is prevented from being detached from the guide means. It is possible to do.

  The invention according to claim 6 relates to the crank device according to claim 3 or 4, wherein the one input member side and the other input member side are connected via a rope member, and the one or the other is connected. Both inputs are carried through the cord member and reciprocated.

  In the invention described in claim 6, one input member side and the other input member side are connected to each other through a rope member such as a chain or a wire, and the rope member is connected to a spring or the like. Since each input member reciprocates when it is tensioned so that it does not loosen by the member, it moves in cooperation with each other, so that an unexpected external force acts on any of the input members. Even if there is, it is possible to prevent the input member from making excessive movement.

  A seventh aspect of the present invention relates to the crank device according to any one of the first to sixth aspects, wherein the internal gear is formed in a sprocket shape, and the fixed gear is formed in a chain shape. It is characterized by that.

According to the seventh aspect of the present invention, as the meshing device between the fixed gear and the internal rotation gear, the fixed gear 60 includes, for example, a plurality of pin members arranged at intervals between a pair of ring plate-like base portions. It is formed in a form having a substantially chain function. The internal gear that meshes around the inside of this fixed gear is formed in the form of a sprocket, so that the meshing device is configured by meshing the chain and the sprocket, and the pedal depression force can be transmitted smoothly. Is possible. In this case, since the meshing device is formed in the chain-and-sprocket meshing form, there is an effect of preventing gravel and the like from being caught in the meshing portion of the chain-sprocket during traveling . In addition, the internal gear or the fixed gear can be formed at a low cost, and a crank device, a vehicle, and the like with reduced weight can be obtained.

  The invention according to claim 8 relates to the crank device according to any one of claims 1 to 6, wherein the internal gear is formed in a chain form, and the fixed gear is formed in a sprocket form. It is characterized by that.

In the eighth aspect of the present invention, the fixed gear is formed as a sprocket-shaped fixed gear having sprocket teeth, and the pin-shaped teeth meshing with the sprocket teeth are spaced apart as an internal rotation gear rotating inside the fixed gear. Since it is formed in a chain-type internal gear that is open, the meshing device is formed in the chain-and-sprocket meshing form, so gravel etc. meshes with the chain-sprocket meshing part during traveling. There is an effect to prevent it. In addition, the internal gear or the fixed gear can be formed at a low cost, and a crank device, a vehicle, and the like with reduced weight can be obtained.

  A ninth aspect of the present invention relates to the crank device according to any one of the first to sixth aspects, wherein the fixed gear is formed of a toothed belt.

  According to the ninth aspect of the invention, as yet another meshing device, for example, a V-shaped pulley groove is cut on the outer circumference of each tooth of the internal gear, and each tooth of the internal gear is arranged on the fixed gear side. A toothed belt is provided so as to engage with the pulley groove and the internal rotation gear meshes with the toothed belt so that a meshing device (mechanism) that suppresses vibration can be obtained. Become. In addition, even when a toothed belt is fixedly provided on the inner gear side, an engagement device (mechanism) in which vibration is similarly suppressed can be obtained.

  A tenth aspect of the present invention is a vehicle comprising the crank device according to any one of the first to ninth aspects.

  In the invention of claim 10, the crank device can be applied to a vehicle such as a two-wheeled bicycle, a three-wheeled bicycle, a man-powered airplane, a water-powered footboat, and the like.

  An eleventh aspect of the present invention is a crank pedal device for a vehicle, wherein the crank body is rotatably provided on the vehicle body via a bearing portion, and each crank is bent and extended on both sides of the crank shaft. Arms, a pair of inwardly rotating gears rotatably provided on these crank arms, provided on the vehicle body side, so that each of the inwardly rotating gears rolls (revolves) while rotating as a planetary gear. A pair of fixed gears to be engaged with each other, a pair of guide means provided on the side of these fixed gears, a driving force provided to reciprocate between the top dead center and the bottom dead center guided by these guide means A pair of pedal devices for inputting the drive, a drive applied to the pedal device when the inner gear is located at or near top dead center and interposed between the pedal device and each of the inner gears. The power is within each of the above A pair of driving force transmission means for rotating the crank arms by being transmitted so that a rotational moment is generated in the gears, and a driving force extracting means provided on the crankshaft for extracting the driving force to the outside are provided. And

  In the crank pedal device for a vehicle according to the present invention, the crank device according to the first aspect of the invention is replaced with a crank device for a vehicle such as a bicycle such as a two-wheeled bicycle or a three-wheeled bicycle, a water-powered rowing boat, a human-powered airplane, or the like. The following actions are taken. That is, for example, when a stepping force as a driving force is applied to a pedal device as an input member of a bicycle, the pedal device moves (reciprocates) while being guided by guide means. At this time, the stepping force applied to the pedal device is transmitted to the internal gear through a driving force transmission means at a position deviated from the vertical center axis, thereby generating a rotational moment in the internal gear.

  For this reason, the internal rotation gear rotates (revolves) like a planetary gear around the crankshaft while meshing with the fixed gear, and itself rotates around the crank arm. As the addendum revolves around the inside of the fixed gear and revolves, the linear motion or linear motion of the pedal device is converted into a rotational motion that rotates the crank arm. Is taken out (transmitted) to an external member such as a chain from a driving force take-out means formed by, for example, a sprocket. Therefore, the downward stepping force applied to the pedal device is such that the rotational moment acts on the internal rotation gear even when the internal rotation gear is at top dead center. Without thinking, it is possible to obtain a crank device that is immediately and smoothly converted into a rotational motion and is excellent in energy conversion efficiency.

  Note that the driving force extracting means can be applied to a shaft driving system using a gear mechanism including a bevel gear and a drive shaft, instead of a sprocket or pulley of a winding link mechanism such as a chain or a belt. In that case, since the winding link mechanism is not used, play and sagging do not occur, so the stepping force applied to the pedal device can be efficiently transmitted to the rear wheel without wasting it, As a result, energy transmission efficiency can be further improved.

  Another aspect of the invention according to claim 11 relates to a vehicle crank pedal device, wherein a ratio of the number of teeth of each of the internal gears and each of the fixed gears is determined. It is formed so as to form a relationship of one rotation when it rolls and makes one round.

  In the present invention, the following effects are further exhibited. That is, one internal gear and the other internal gear are laid out so as to circumscribe each other at the central point of the fixed gear or in the vicinity thereof, as viewed from the side. For this reason, when each internal rotation gear rotates by one rotation with respect to the fixed gear, it becomes possible to revolve by rotating once inside the fixed gear, and as a result, in the direction along the vertical center axis of the pedal device. The reciprocating motion can be smoothly realized, whereby the driving force applied to the pedal device can be more efficiently converted into the rotational motion.

  Another aspect of the invention according to claim 11 relates to a vehicle crank pedal device, wherein each of the driving force transmitting means includes each contact member provided on each pedal device side, and these contact members. It is formed by the drive force transmission mechanism by contact which consists of each cam-like contact member provided in each said internal-rotation gear.

In this invention, when a driving force is applied to the pedal device when each internal gear is at or near top dead center , the contact member is displaced (offset) from the direction in which the pedal device moves along the guide means. In this way, the cam-like contact member is contacted and pressed from above, thereby generating a rotational moment in the internal gear. As a result, the internal gear on one side is at or near its top dead center (the internal gear on the other side is at or near its bottom dead center), and the bottom dead center or its vicinity (the internal gear on the other side is , Its top dead center or its vicinity). In this way, the driving force from the input member can be transmitted to the internal gear by a simple structure called a driving force transmission mechanism by contact.

  Another aspect of the invention according to claim 11 relates to a vehicle crank pedal device, wherein the top dead center or the vicinity thereof and the bottom dead center or the vicinity of the bottom dead center are guided by the guide means. Each pedal device that reciprocates between each of the fixed gears, and reciprocates along an axis passing through the top and bottom dead centers passing through or near the axis of each fixed gear. Alternatively, when in the vicinity thereof, the contact portion between the contact member of the driving force transmission mechanism by the contact and the cam-like contact member is set to a position deviated from the axis passing through the top and bottom dead centers. And

In this invention, when the pedal member reciprocates while being guided by the guide means, the pedal member reciprocates along an axis passing through the top and bottom dead center passing through the axial center of the fixed gear or the vicinity thereof. 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 top and bottom dead centers when each internal gear is at or near top dead center, it is added to the pedal device side. The driving force is such that the cam-like contact member on the inner rotation gear side is pressed from above by the contact member, so that a rotational moment acts on the inner rotation gear. For this reason, the internal rotation gear is not conceived at or near the top dead center, and is rotated while meshing with the fixed gear, the crankshaft rotates, and the rotational force is output from the driving force extraction means. The reciprocating motion of the member can be converted into <rotational motion with efficiency.

  Another aspect of the invention according to claim 11 relates to a vehicle crank pedal device, and an upward movement amount regulating means for regulating an upward movement amount in each contact member of the driving force transmission mechanism by the contact. Is provided.

In this invention, although the pedal device is linked to the guide means via the driving force transmission means formed by the contact driving force transmission mechanism, the pedal device on the side of the pedal device forming the contact driving force transmission mechanism is provided. The contact member and the cam-like contact member on the side of the internal gear only contact each other, and are configured to be able to be separated in directions opposite to each other. For this reason, even when an impact force is unexpectedly applied to the pedal device while the pedal device is reciprocating along the guide means, the movement amount regulating means for regulating the upward movement amount on the contact member side. Since the cam-like contact member is engaged with the upward movement amount regulating means, the upward movement beyond a predetermined value is prevented and the pedal device is prevented from being detached from the guide means. It is possible to do.

  Another aspect of the invention according to claim 11 relates to a vehicle crank pedal device, wherein the one pedal member side and the other pedal member side are connected via a cord member, and the one pedal member side is connected. Both other pedal devices are configured to reciprocate in cooperation via the cord member.

  In this invention, 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. When the pedal devices reciprocate, the pedal devices move in coordination with each other, so even if an unexpected external force acts on any of the pedal devices, Can be prevented from doing extra exercise.

  Another aspect of the invention according to claim 11 relates to a vehicle crank pedal device, wherein the internal gear is formed in a sprocket form, and the fixed gear is formed in a chain form. And

  According to a twelfth aspect of the present invention, there is provided a vehicle, comprising the vehicle crank pedal device according to the eleventh aspect.

  In the invention according to claim 12, the crank pedal device can be applied to a vehicle such as a two-wheeled bicycle, a three-wheeled bicycle, a man-powered airplane, a water-powered footboat, and the like.

  Next, an invention according to claim 13 will be described. The invention according to claim 13 differs from the invention according to claim 1 in that the crank arm, the internal gear, the fixed gear, the driving force transmission means, the guide means, and the input member are different. Is provided on both sides of the crankshaft. However, in the invention of claim 13, the configuration provided on one side of the crankshaft is different, and the other configurations are common.

  The invention according to claim 14 relates to the crank device according to claim 13, wherein the driving force transmitting means is in contact with the contact members provided on the input member side and the contact members, and It is characterized by being formed by a driving force transmission mechanism by contact, which is composed of each cam-like contact member provided on each internal gear side.

In the invention according to claim 14, when the driving force is applied to the input member when each internal gear is located at or near the top dead center , the contact member is deviated (offset) from the direction of movement along the guide means. A rotational moment is generated in the internal rotation gear by contacting the cam-like contact member at the position and pressing from above. As a result, the internal gear on one side is at or near its top dead center (the internal gear on the other side is at or near its bottom dead center), and the bottom dead center or its vicinity (the internal gear on the other side is , Its top dead center or its vicinity). In this way, the driving force from the input member can be transmitted to the internal gear by a simple structure called a driving force transmission mechanism by contact.

  Next, an invention according to claim 15 will be described. The invention according to claim 14 differs from the invention according to claim 11 in that the crankshaft, the internal gear, the fixed gear, the driving force transmission means, Although the guide means and the input member are provided, the invention according to claim 14 is different in the structure provided on one side of the crankshaft, and the other structures are common.

Next, an invention according to claim 16 will be explained. In the invention described in claim 16, when the driving force is applied to the input member when each internal gear is at or near the top dead center , the contact member is displaced (offset) from the direction of movement along the guide means. A rotational moment is generated in the internal rotation gear by contacting the cam-like contact member at the position and pressing from above. As a result, the internal gear on one side is at or near its top dead center (the internal gear on the other side is at or near its bottom dead center), and the bottom dead center or its vicinity (the internal gear on the other side is , Its top dead center or its vicinity). In this way, the driving force from the input member can be transmitted to the internal gear by a simple structure called a driving force transmission mechanism by contact.

  As described above, according to the first aspect of the present invention, the internal rotation gear rotates like a planetary gear (revolution movement) around the crankshaft while meshing with the fixed gear, and the internal rotation gear itself. Also rotates around the crank arm. The internal rotation gear revolves while rotating, so that the linear or curvilinear reciprocating motion of the input member is converted to a crank arm as a rotational circular motion. In this way, by applying a linear or curved reciprocating motion alternately to the pair of input members, the driving force due to the rotational motion is taken out from the driving force take-out means provided on the crankshaft. For this reason, even when the internal gear is at or near the top dead center, the driving force applied to the input member is 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 a rotational motion and suppress energy loss.

  In addition, the driving force extraction means may be 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 therewith, or a pulley and a belt engaged therewith. In such a case, there is no play or slack in the winding link mechanism, so that the rotational force applied to the pedal can be efficiently transmitted to the rear wheel without wasting it, and as a result, energy transmission efficiency The effect which can improve is also produced.

  According to the second aspect of the present invention, one internal gear and the other internal gear are always in a relational position that circumscribes each other at or near the center point of the fixed gear as viewed from the side. The layout is such that For this reason, when each internal rotation gear rotates by one rotation with respect to the fixed gear, it becomes possible to revolve by rotating once inside the fixed gear, and as a result, in the direction along the vertical center axis of the input member. The reciprocating motion can be realized smoothly, thereby producing an effect that the driving force applied to the input member can be more efficiently converted into the rotational motion.

According to a third aspect of the present invention, when a driving force is applied to the input member when each internal gear is at or near top dead center , the driving force is a driving force transmitting means. The contact member of the force transmission mechanism, for example, contacts the cam-like contact member at a position that is deviated (offset) from the direction in which the pedal device moves along the guide means and presses it from above, so that a rotational moment is applied to the internal gear. Cause it to occur. As a result, the internal gear on one side is at or near its top dead center (the internal gear on the other side is at or near its bottom dead center), and the bottom dead center or its vicinity (the internal gear on the other side is , Its top dead center or its vicinity). Thus, there is an effect that the driving force from the input member can be transmitted to the internal gear by a simple structure of a driving force transmission mechanism by contact.

According to the fourth aspect of the present invention, when the input member reciprocates while being guided by the guide means, the input member reciprocates along an axis passing through the upper dead center passing through the axis of the fixed gear or the vicinity thereof. Therefore, when each internal gear is located at or near the top dead center , 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 top and bottom dead centers. The applied driving force causes a rotational moment to act on the internal rotation gear when the contact member presses the cam-like contact member on the internal rotation gear side from above. For this reason, the internal rotation gear is rolled while meshing with the fixed gear, the crankshaft rotates, the rotational force is output from the driving force extracting means, and the reciprocating motion of the input member is efficiently converted into the rotational motion. There is an effect that can.

According to the invention described in claim 5, although the input member is linked to the guide means via the driving force transmission means formed by the driving force transmission mechanism by contact, the driving force transmission by contact is achieved. The contact member on the input member side that forms the mechanism and the cam-like contact member on the internal gear side are only in contact with each other, and can be separated in the opposite directions. For this reason, even when an impact force is applied to the input member unexpectedly while the input member is reciprocating along the guide means, the movement amount regulating means for regulating the upward movement amount on the contact member side. Since the cam-like contact member is engaged with the upward movement amount regulating means, the upward movement beyond a predetermined value is prevented and the input member is prevented from being detached from the guide means. There is an effect that can be done.

  Further, according to the invention described in claim 6, one input member side and the other input member side are connected via a rope member such as a chain or a wire, and the rope member is connected to the spring. Since each input member reciprocates when it is tensioned so as not to be loosened by a spring member, etc., a shocking external force acts on one of the input members unexpectedly. Even if such a thing occurs, there is an effect that the input member can be prevented from making excessive movement.

Further, according to the seventh aspect of the invention, as the meshing device between the fixed gear and the internal gear, 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 substantially chain function that is arranged and provided. The internal gear that meshes around the inside of this fixed gear is formed in the form of a sprocket, so that the meshing device is configured by meshing the chain and the sprocket, and the pedal depression force can be transmitted smoothly. Is possible. In this case, since the meshing device is formed in the chain-and-sprocket meshing form, there is an effect of preventing gravel and the like from being caught in the meshing portion of the chain-sprocket during traveling . Further, the internal gear or the fixed gear can be formed at a low cost, and there is an effect that it is possible to obtain a crank device, a vehicle, and the like that are reduced in weight.

According to the invention described in claim 8, the fixed gear is formed as a sprocket-shaped fixed gear having sprocket teeth, and the pin-shaped tooth meshing with the sprocket teeth is used as an internal rotation gear that goes inside the fixed gear. Is formed in a chain-type internal gear that is spaced apart, so the meshing device is formed in the chain-and-sprocket meshing form, so gravel etc. meshes with the chain-sprocket during travel. There is an effect of preventing biting into the portion, and an effect can be obtained in which an internal rotation gear or a fixed tooth army can be formed at a low cost and a weight reduction can be obtained.

  According to the ninth aspect of the present invention, for example, a V-shaped pulley groove is cut 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. Then, a toothed belt is provided so as to mesh with the pulley groove, and the internal gear engages with the toothed belt. Therefore, in addition to the same effects as the inventions of the seventh and eighth aspects, the meshing device that suppresses vibrations There is an effect that can obtain (mechanism).

  Further, according to the invention described in claim 10, the crank device can be applied to a vehicle such as a two-wheeled vehicle, a three-wheeled vehicle, a man-powered airplane, and a water-powered foot-operated boat.

According to the vehicle crank pedal device of the invention described in claim 11, the vehicle crank pedal device is employed in a vehicle crank device such as a bicycle such as a two-wheeled vehicle or a three-wheeled vehicle, a watercraft boat, a human-powered aircraft, or the like. When a pedaling force, which is a driving force, is applied to the pedal device as the input member, the pedal device is guided by the guide means and moves (reciprocates). At this time, the stepping force applied to the pedal device when each internal gear is at or near top dead center is transmitted to the internal gear at a position deviated from the vertical center axis via the driving force transmission means. As a result, a rotational moment is generated in the internal rotation gear.

  For this reason, the internal rotation gear rotates (revolves) like a planetary gear around the crankshaft while meshing with the fixed gear, and itself rotates around the crank arm. When the internal gear revolves while rotating inside the fixed gear, the motion of the pedal device is converted into a rotational motion that rotates the crank arm, and the rotational force by the rotational motion is provided on the crankshaft, for example, It is taken out (transmitted) to an external member such as a chain from a driving force take-out means formed by a sprocket or the like. Therefore, the downward stepping force applied to the pedal device is such that the rotational moment acts on the internal rotation gear even when the internal rotation gear is at top dead center. It is possible to obtain a crank device that is immediately and smoothly converted into a rotational motion and has excellent energy conversion efficiency without thinking.

  According to the eleventh aspect of the invention, in addition to the eighth aspect, the following effect is further obtained. That is, one internal gear and the other internal gear are laid out so as to circumscribe each other at the central point of the fixed gear or in the vicinity thereof, as viewed from the side. For this reason, when each internal rotation gear rotates by one rotation with respect to the fixed gear, it becomes possible to revolve by rotating once inside the fixed gear, and as a result, in the direction along the vertical center axis of the pedal device. The reciprocating motion can be realized smoothly, thereby producing an effect that the driving force applied to the pedal device can be more efficiently converted into the rotational motion.

  According to the eleventh aspect of the present invention, there is an effect that the driving force from the input member can be transmitted to the internal gear by adopting a simple structure called a driving force transmission mechanism by contact.

According to the eleventh aspect of the present invention, when each of the internal gears is at or near the top dead center , the contact portion between the contact member and the cam-like contact member is displaced from the axis passing through the top and bottom dead centers. Since the drive force applied to the pedal device side is set, the cam-like contact member on the inner rotation gear side is pressed from above by the contact member, so that a rotational moment acts on the inner rotation gear. For this reason, the internal rotation gear is rolled while meshing 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 take-out means. It is possible to efficiently convert the reciprocating motion into a rotational motion.

According to the eleventh aspect of the present invention, even when an impact force acts on the pedal device unexpectedly while the pedal device is reciprocating along the guide means, the contact device side is moved upward. Since the movement amount regulating means for defining the movement amount is provided, the upward movement beyond the predetermined value is prevented by engaging the cam-like contact member with the upward movement amount regulating means, and the pedal device guides There is an effect that it is possible to prevent detachment from the means.

  According to the eleventh aspect of the present invention, 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 connected to a spring or the like. Since each pedal device reciprocates when it is tensioned so that it does not loosen by the spring member, it moves in cooperation, so that an unexpected external force acts on one of the pedal devices. Even if it exists, there exists an effect which can prevent that a pedal apparatus carries out an excess exercise | movement.

According to the eleventh aspect of the present invention, the meshing device is constituted by the meshing of the chain and the sprocket, so that it is possible to smoothly transmit the stepping force of the pedal of a vehicle such as a bicycle. In this case, since the meshing device is formed in a chain-and-sprocket meshing form, there is an effect of preventing gravel and the like from biting into the meshing part of the chain-sprocket during traveling of a vehicle such as a bicycle. is there. In addition, an internal rotation gear or a fixed gear can be formed at low cost, and an effect of obtaining a vehicle crank pedal device with reduced weight can be obtained.

According to the eleventh aspect of the present invention, the fixed gear is formed as a sprocket-shaped fixed gear having sprocket teeth, and the pin-shaped tooth meshing with the sprocket teeth is used as an internal rotation gear rotating inside the fixed gear. Is formed in a chain-type internal gear that is provided at intervals, so that the meshing device is formed in a chain-and-sprocket meshing shape, so that gravel or the like is generated during traveling of a vehicle such as a bicycle. In addition to preventing the chain / sprocket from engaging with the meshing portion, the internal gear or the fixed gear can be formed at a low cost, and a vehicle crank pedal device with reduced weight can be obtained.

  According to the invention described in claim 11, as another meshing device, for example, a V-shaped pulley groove is cut on the outer circumference of each tooth of the internal gear, and each of the internal gears is arranged on the fixed gear side. A toothed belt is provided so that the toothed belt meshes with the pulley groove, and the internal gear meshes with this toothed belt, so that it is possible to obtain a meshing device (mechanism) that suppresses vibration. Play.

  Further, according to the invention of claim 12, when the crank pedal device for a vehicle is applied to a vehicle such as a two-wheeled bicycle, a three-wheeled vehicle, a human-powered airplane, a water-powered footboat, etc. There is an effect that a vehicle excellent in energy transmission efficiency can be obtained.

  According to a thirteenth aspect of the invention, the internal rotation gear rotates in a planetary manner (revolution motion) around the crankshaft while meshing with the fixed gear, and the internal rotation gear itself is also a crank arm. Rotate around the center. The internal rotation gear revolves while rotating, so that the linear or curvilinear reciprocating motion of the input member is converted as a circular circular motion to the crank arm. Thus, by giving the input member a linear or curved reciprocating motion alternately, the driving force due to the rotational motion is taken out from the driving force take-out means provided on the crankshaft. For this reason, even when the internal gear is at or near the top dead center, the driving force applied to the input member is the internal gear at or near the top dead center by the rotation moment acting on the internal gear, that is, 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 a rotational motion and suppress energy loss.

  According to the invention described in claim 14, when this is applied to a so-called hand cycle mounted on a normal bicycle or wheelchair, for example, the following effects are exhibited.

  That is, by moving a handle-type pedal or a manual pedal installed away from the handle, the internal rotation gear rotates in a planetary gear (revolution motion) around the crankshaft while meshing with the fixed gear. In addition, the internal rotation gear itself rotates around the crank arm. The internal rotation gear revolves while rotating, so that the linear or curvilinear reciprocating motion of the input member is converted to a crank arm as a rotational circular motion. Thus, by giving the input member a linear or curved reciprocating motion alternately, the driving force due to the rotational motion is taken out from the driving force take-out means provided on the crankshaft. For this reason, even when the internal gear is at or near the top dead center, the driving force applied to the input member is the internal gear at or near the top dead center by the rotation moment acting on the internal gear, that is, The input member can move along the guide means without contemplation, and it is smoothly and efficiently converted into a rotational movement. By performing a simple operation of simply moving the slewing force, the rotational force take-out means is driven, so that the hand-type bicycle can be easily driven and the rehabilitation effect can be improved.

  An embodiment of the present invention will be described in detail with reference to FIGS. In the following description, a case where the crank device is applied to a bicycle as a vehicle will be described as an example. In addition, since the members, parts, etc. constituting the crank device are provided in pairs on the left and right sides with respect to the bicycle body (frame), and the shape, structure, etc. are the same, for convenience, members, parts, etc. present on the left side are L (Left) is attached to the sign, and R (Right) is attached to those on the right side.

  As shown in FIG. 1, the crank device has a crankshaft 3 rotatably supported by a bearing portion 2 of a bicycle main holiday (frame) 1, and on both the left and right sides of the crankshaft 3 straddling the frame 1, There are crank arms 4L, 4R that bend and extend in opposite directions in the same plane, and these crank arms 4L, 4R are rotatably provided with internal rotation gears 5L, 5R, which are spur gears having external teeth, respectively. (See Fig. 4). In addition, fixed gears 6L and 6R that form internal gears are provided on the left and right sides of the longitudinal axis along the longitudinal direction of the bicycle body 1, and the internal gears 5L and 5R roll like planetary gears (revolution). And in a state of meshing so as to rotate.

  Further, the gear ratio between the internal rotation gears 5L and 5R and the fixed gears 6L and 6R is 1: 2, and when the internal rotation gears 5L and 5R roll around the fixed gears 6L and 6R (revolve) Is set to finish one rotation (rotation).

  Guide means 10L, 10R are arranged in the vertical direction on the outer surface of the fixed gears 6L, 6R. The guide means 10L, 10R may be any member that can be controlled so that the slider 11Lb moves along a fixed path, and the material and shape thereof are not limited. In the embodiment of the present invention, the guide means 10L, 10R are, for example, two guide bars 10La, 10Lb, 10Ra, 10Rb having a quadrangular cross section, and each guide bar 10La, 10Lb, 10Ra, 10Rb is The pedal devices 11L and 11R, which will be described later, are arranged in parallel in the vertical direction and are reciprocated while being guided up and down.

  The pedal devices 11L and 11R support the pedals 11La and 11Ra and the pedals 11La and 11Ra in a rotatable manner, and sliders 11Lb and 11Rb formed to move between the guide rods 10La, 10Lb, 10Ra, and 10Rb. In the state where the sliders 11Lb, 11Rb are sandwiched between the guide rods 10La, 10Lb, 10Ra, 10Rb, the vertical center axis L (the vertical center axis line passing through the shaft center P1 of the fixed gears 6L, 6R or the vicinity thereof. L slides or slides in the vertical direction along the axis P2 of the internal rotation gears 5L and 5R (see FIG. 2).

  Next, driving force transmission means will be described. Since the structures of the driving force transmission means provided on the left and right are the same, for convenience, the drive transmission means 12L disposed on the left side will be described as shown in FIGS. That is, the driving force transmission means 12L is interposed between the pedal device 11L and the internal rotation gear 5L, and is provided in the vicinity of the outer peripheral edge of the internal rotation gear 5L with the contact member 12La attached to the tip of the slider 11Lb of the pedal device 11L. It is formed by a driving force transmission mechanism by contact composed of a plate-like cam-like contact member 12Lb attached.

  In the present embodiment, the contact member 12La is fixed to the tip of the slider 11Lb, but may be moved relative to the slider 11Lb. In short, it is sufficient that the contact member 12La comes into contact with the cam-like contact member 12Lb at the time of input.

  In the present embodiment, when the internal gear is located at or near the top dead center, the upper end surface of the cam-like contact member 12Lb forms a contact surface, and the lower surface of the contact member 12La comes into contact therewith. . When the internal rotation gear 5L is at or near the top dead center, it contacts at a position Q deviated from the vertical center axis L. Thus, when the pedal device 11L is at or near top dead center, the driving force is transmitted by applying a rotational moment to the internal rotation gear 5L by the driving force F from the contact member 12La acting on the position Q. Accordingly, 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.

  When the pedal device 11L on the left side is in a downward stroke from the top dead center or the vicinity thereof to the bottom dead center or the vicinity thereof, the driving force transmission means 12L is connected to the cam-like contact member 12Lb. Touch to hold down from above. Then, rotational force is applied to the internal gear, and the internal gear 5L rolls in the direction of the bottom dead center, passes through the bottom dead center or its vicinity, and returns to the top dead center or its vicinity. At this time, the cam-like contact member 12Lb of the internal rotation gear 5L goes around the lower side of the contact member 12La. At this time, when the driving force is applied to the pedal device 11R on the opposite side and at or near the top dead center to start the downward movement, the cam-like contact member 12Lb is caused by the rolling of the internal gear 5L on the one side. However, the contact member 12La is pushed up from below, and the pedal device 11L moves upward along the guide means 10L (see FIG. 5).

  Next, the driving force extracting means 13 will be described. That is, the driving force extraction means 13 in the crank device is formed by providing a driving sprocket 13a that rotates integrally with the crankshaft 3 on the crankshaft 3 in the vicinity of the bearing portion 2. However, when the crank device is attached to the frame 1 which is the bicycle body, the driving force extracting means 13 is provided with a driving sprocket 13a and a driven sprocket 13b on the rear wheel side mounted coaxially with, for example, a rear wheel (not shown). And a chain 13c wound and mounted between the driving sprocket 13a and the driven sprocket 13b, and by driving the pedal devices 11L and 11R alternately left and right, the driving force applied to the pedal devices 11L and 11R ( The stepping force) can be extracted from the driving sprocket 13a which is the driving force extracting means 13.

  In FIG. 1, in order to make it easy to grasp the configuration of the entire apparatus, the driving sprocket 13a is shown on the L side.

  Next, the structure of the crank device will be described more specifically with reference to FIGS. 4, 5, and 6. FIG. 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 attached to the frame 1 of the bicycle, and a journal 2a as a bearing portion 2 is horizontally fixed by welding in a hole drilled in the center thereof. A stepped crankshaft 3 (output shaft) is rotatably inserted into the journal 2a. A left crank arm 4L is fixed to the left side of the crankshaft 3 by a screw 20, and a right crank is provided on the right side. The arm 4R is welded. Note that the left crank arm 4L may be welded by welding instead of fastening with the screw 20. Further, instead of welding by these welding, an adhesive such as a bond may be used.

  The left and right crank arms 4L and 4R are bent and extended in opposite directions within the same plane. That is, the crankshaft 3 rotates integrally with the crankshaft 3 while extending in opposite directions.

  Shaft members 5Lc and 5Rc are fixed to the left and right crank arms 4L and 4R so as to be horizontally oriented, and a left internal rotation gear 5L formed as a spur gear via space washers 5Ld and 5Rd. The right internal rotation gear 5R is attached while being rotatably supported.

  Also, the left fixed gear 6L and the right side as internal gears having flat teeth with a ring shape are arranged on the left and right sides of the base plate 1a in the same plane direction as the base plate 1a. The fixed gear 6R is fixed via through bolts 21c inserted into the four spacers 21a and 21b (see FIG. 4). Each of the spacers 21a and 21b and the bolt 21c functions as a constituent member of the frame 1. The left and right internal gears 5L and 5R are incorporated in the left and right fixed gears 6L and 6R so as to be inscribed and meshed with each other. In this case, the gear ratio between the internal gears 5L and 5R and the fixed gears 6L and 6R is such that the internal gears 5L and 5R rotate once while rotating around the fixed gears 6L and 6R. The number of teeth is set to be 1: 2.

  Further, the cam-like contact members 12Lb of the driving force transmitting means 12L, 12R and the like are attached to the outer sides of the left and right internal rotation gears 5L, 5R by, for example, fasteners such as screws (not shown). However, the cam-like contact member 12Lb can be formed of a forged product or a sheet metal press-formed product that is integrally formed with the internal rotation gear, instead of being formed as a separate component with respect to the internal rotation gear. .

  On the other hand, guide means 10L and 10R are provided outside the left and right fixed gears 6L and 6R so as to be directed in the vertical direction and along the vertical center axis L (see FIG. 2). The sliders 11Lb and 11Rb of the pedal devices 11L and 11R are set between the guide rods 10La, 10Lb, 10Ra, and 10Rb so that they can be linearly or vertically moved along the vertical center axis L. Thus, the contact members 12La and 12Ra attached to the sliders 11Lb and 11Rb are attached so as to be in contact with the cam-like contact members 12Lb and 12Rb provided on the internal rotation gears 5L and 5R, and the driving force transmission means 12L and 12R, that is, A driving force transmission mechanism by contact is formed. The contact portion between the contact member of the driving force transmission mechanism by contact and the cam-like contact member moves up and down when the internal rotation gears 5L and 5R are at or near the top dead center with respect to the fixed gears 6L and 6R. The position is deviated from the center axis L (see FIG. 2).

  Therefore, when a stepping force (driving force) is applied to the pedal 11La or 11Ra from the top to the bottom, the contact member 12La or the inner drive gear 5R on the left or the inner drive gear 5R on the right is applied. The force is transmitted to the cam-like contact member 12Lb or 12Rb via 12Ra, and the internal rotation gear 5L or the internal rotation gear 5R receives the rotational moment and rolls in the direction of arrow B shown in FIG. Is possible.

  A driving sprocket 13a for extracting 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, and a chain 13c (FIG. 1). (See Fig. 4) and coupled to the driven sprocket 13b on the rear wheel side.

  Thus, the crank device according to the present embodiment is manufactured by assembling the above-described components as shown in the assembly exploded perspective view of FIG. In FIG. 6, reference numerals 23L and 23R denote push nuts that are press-fitted into the shaft ends of the shaft members 5Lc and 5Rc to attach the internal rotation gears 5L and 5R to the shaft members 5Lc and 5Rc.

  Next, the operation of the crank pedal device of the bicycle provided with the crank device according to the present embodiment will be described mainly with reference to FIG. FIG. 7 is an operation explanatory diagram for explaining the influence of the 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. In FIG. 7, the outer solid line is a fixed gear, the internal rotation gear indicated by the inner solid line is the internal rotation gear 5L on the left, and the dotted internal rotation gear is the internal rotation gear 5R on the right. . First, it is assumed that the left internal gear 5L is located at or near the top dead center. Naturally, the right internal rotation gear 5R located on the opposite side is located at or near the bottom dead center (state 0 ° shown in FIG. 7).

  In this state, when putting a foot on the bicycle pedals 11La and 11Ra and stepping on the pedal, first, the left pedal 11L at or near the top dead center is depressed. Then, the slider 11Lb provided on the pedal 11L is guided and moved downward between the guide rods 10La and 10Lb. At this time, as shown in FIG. 5, the driving force F applied to the pedal 11La is transmitted from the contact member 12La to the cam-like contact member 12Lb. The driving force F transmitted to the cam-like contact member 12Lb is transmitted to the left internal gear 5L, and the pedal 11La moves along the guide means 10 until it reaches the bottom dead center or the vicinity thereof. As a result, the addendum tooth bracket 5L rotates in the direction of arrow C (clockwise) and revolves counterclockwise. As a result, rotational torque is generated on the crankshaft 3 due to the revolution of the internal rotation gear 5L, and the chain 13c is driven in the direction of arrow A via the driving sprocket 13a as the power take-out means 13, so that the bicycle can travel forward. Become.

  On the other hand, the right internal rotation gear 5R on the opposite side is at or near the bottom dead center and rolls while meshing with the fixed gear 6R while drawing a locus as indicated by a dotted line. That is, the cam-like contact member 12Rb of the internal rotation gear 5R is in contact from the lower side of the contact member 12Ra, and a force for lifting the contact member 12Ra upward continues according to the rolling of the internal rotation gear 5R. Thus, the right pedal device 11R (see FIGS. 1 and 2) moves upward along the guide means 10R attached to the right fixed gear 6R.

  By the way, when the left pedal device 11L slides to or near the bottom dead center (around 180 ° shown in FIG. 7), the depressing force stops working, and on the contrary, the pedal device 11L is located at or near the top dead center. A driving force, that is, a stepping force is applied to the right pedal device 11R. At this time, the cam-like contact member 12Lb provided on the left pedal device 11L that has passed through the bottom dead center is located below the contact member 12La, and contacts the contact member 12La in a direction of pushing up from the lower side. While maintaining the contact between the member and the cam-like contact member, the left pedal device 11L moves along the guide means 10L to the top dead center or a position near the top dead center. Thus, a bicycle can be traveled by repeatedly depressing the pedal device.

  Thus, as shown in FIG. 7, at least any one of the contact members 12La and 12Ra is always in the cam regardless of the rolling position of the internal gears 5L and 5R with respect to the fixed gears 6L and 6R. To contact the contact members 12Lb and 12Rb, the left and right internal gears 5L and 5R are engaged with the left and right fixed gears 6L and 6R by stepping on the left and right pedals 11L and 11R alternately. The crankshaft 3 rotates and the rotational driving force is transmitted from the driving sprocket 13a to the driven subrocket 13b via the chain 13c, and the rear wheel can be driven to move forward. .

  As described above, according to the present embodiment, when pedaling a bicycle, the contact members 12La and 12Ra provided on the pedal devices 11L and 11R are in contact with the cam-like contact members 12Lb and 12Rb, and the internal gear The contact part between the contact member and the cam-like contact member at or near the top dead center of 5L, 5R 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, there is no dead point, the pedal devices 11L and 11R do not think at or near the top dead center, and the bicycle can be continuously driven forward.

  For this reason, when pedaling as in the conventional case, the bicycle's wobbling caused by shifting the weight of the pedal to the left and right can be reduced, effectively reducing the driving force loss of the bicycle. In addition, unlike the above-described conventional device, the amount of children can be reduced, and a compact-sized crank device that is advantageous in installation space can be obtained.

  The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and even if there is a design change or the like without departing from the gist of the present invention, It is included in the scope of the invention.

  That is, the crank device according to the above embodiment has been described for the case where it is applied to a bicycle (including a three-wheeled bicycle). Instead of this, a vehicle that steps on the water with a pedal crank device or a pedal crank device for a human-powered airplane. As a matter of course, the present invention can be appropriately applied to a vehicle crank pedal device using the above crank device, and further to a vehicle using the vehicle crank pedal device and the vehicle crank pedal device.

  Further, in the above embodiment, the guide means 10L, 10R has been deviated for the mode having a linear shape in the vertical direction, but instead, for example, as shown by a two-dot chain line in FIG. A curved shape, a bent shape, a meandering shape, or a shape formed by appropriately combining these shapes is adopted. It may be a thing. As a result, it is possible to select and attach guide means having a shape according to the body shape of the person who rides the vehicle, traveling conditions, etc. Furthermore, the guide means having various shapes can be attached and detached as appropriate. It can also be set as the aspect made to attach to.

  In addition, in the case of a vehicle crank pedal device or the like in which the pedal is operated by a front stepping method, the guide means 10L and 10R are arranged so as to incline upward from the front toward the rear rather than in the vertical direction. It is also possible.

  The slider 11Lb (and 11Rb) guided by the guide means 10L, 10R is a vertical center axis that passes through the axis P1 of the fixed gear and the axis P2 of the internal gear at the top dead center or bottom dead center position. Although it is provided so as to reciprocate along L, it may instead be configured to reciprocate in a biased position near the vertical center axis L.

  Further, in the above-described embodiment, the case where the fixed gears 6L and 6R formed by cutting the spur teeth as the fixed gear has been described, but instead of the fixed gear 60 as shown in FIGS. 8 and 9, It is also possible to adopt a mode of a meshing device in combination with the internal rotation gear 50. The meshing device is provided on the left and right of the vehicle frame such as a bicycle, as in the above embodiment. However, for the sake of convenience, the meshing device on either side will be described below as a representative. I will do it.

  That is, as shown in FIG. 8 (a), the fixed gear 60 is provided with a pair of ring plate-like base portions 60a as a cover, with a plurality of pin members 60b arranged at intervals, or as shown in FIG. Like the fixed gear 61 shown in FIG. 8 (b), the pin member 61b protruding in a cantilever shape from the ring plate-like base portion 61a is provided at an interval, and has a substantially chain function. Form. As shown in FIG. 9, the internal rotation gear 50 that rotates while meshing with the inside of the fixed gear 60 or the fixed gear 61 may be formed in the form of a sprocket. As a result, the meshing device is configured by meshing the chain form and the sprocket form, and the pedal depression force can be transmitted smoothly as in the above embodiment. In this case, it goes without saying that the chain may be directly attached to the fixed gear 60.

  Moreover, the form of the sprocket does not have to be a circle, and for example, an elliptical sprocket can be adopted.

According to this modification, since the meshing device is formed in a chain-and-sprocket meshing form, there is an effect of preventing gravel etc. from biting into the chain-shaped / sprocket-shaped meshing part during traveling. . In addition, the internal gear or the fixed gear can be formed at a low cost, and a crank device, a vehicle, and the like with reduced weight can be obtained.

  Further, as another aspect of the meshing device, as shown in FIG. 10, the fixed gear is formed as a fixed gear 62 in the form of a sprocket having sprocket teeth 62a, and as an internal gear that rotates inside the fixed gear 62. Alternatively, a modification may be adopted in which pin-shaped teeth 63a meshing with the sprocket teeth 62a are formed on an internal gear 63 in the form of a chain provided at intervals. In this case, as a matter of course, a mode in which the chain is directly provided on the internal gear 63 may be adopted.

According to this modification, since the meshing device is formed in a chain-and-sprocket meshing form, there is an effect of preventing gravel etc. from biting into the chain-shaped / sprocket-shaped meshing part during traveling. . In addition, it is possible to form an internal gear or a fixed tooth arm at low cost, and to obtain a crank device, a vehicle and the like with reduced weight.

  Further, as another meshing device, a modification as shown in FIG. 11 can be adopted. That is, in the above embodiment, the internal gears 5L and 5R are formed to rotate while meshing the inside of the fixed gears 6L and 6R, but instead, each tooth of the internal gear 500 is formed as shown in FIG. A toothed belt (not shown) is formed so that the V-shaped pulley groove 500b is cut on the outer periphery of the 500a, and the fixed gear side has teeth that mesh with the teeth 500a of the internal rotation gear 500 and mesh with the pulley grooves 500b. ), And the internal gear 500 may mesh with the toothed belt. Moreover, the aspect which provided the toothed belt form to the internal-rotation gear fixedly, and was made to mesh | engage with the tooth | gear of a fixed gear side may be sufficient.

In addition, the internal gear teeth 5L and 5R and the fixed gears 6L and 6R are formed with spur gears and meshed with each other, but instead are formed with gears such as helical gears and bevel gears and meshed with each other. May be.
In the above-described embodiment, the number of teeth of the internal rotation gear 5L on the left side and the number of teeth of the internal rotation gear 5R on the right side have the same number of teeth. Need not have the same number of teeth, but can have a different number of teeth and diameter.

  In the above embodiment, the left and right crank arms 4L and 4R 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 be formed so as to extend so as to be bent in a square shape.

  Further, the contact members 12La and 12Ra were simply formed in a rod shape as the contact members, but as shown in FIG. 12 (a), an upward movement defining portion 40 surrounding the cam-like contact members 12Lb and 12Rb from above and below is formed. It is also possible to employ an elliptical contact member 41 or a contact member 43 having a vertical movement defining portion 42 as shown in FIG. 12 (b).

According to these modified examples, the pedal devices 11L and 11R (input members) are only in contact with the cam-like contact member from above with their own weight or stepping force, and thus form a driving force transmission mechanism by contact. The contact member on the input member side and the cam-like contact member on the internal rotation gear side can be separated from contact with each other. However, by employing the contact members 41 and 43 provided with the vertical movement defining portions 40 and 42, an impact force is unexpectedly applied to the input member while the input member is reciprocating along the guide means. Even if the pedal device is lifted, the upward movement defining portions 40 and 42 are engaged from the lower side of the cam-like contact member 12b. Therefore, the pedal apparatus 11L, 11R it is possible to prevent the upward movement guide means 10L, along 10R than a predetermined value, the input member can proof abolish Rukoto to come off from the guide means .

Further, as shown in the above modification, instead of providing the vertical movement defining portions 40 and 42, or in a mode in which these are used together, a structure as shown in FIG. 13 can be used. 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 11L and the right pedal device 11R are connected via the guide member G to a rope member (for example, a chain, It is also possible to use a modification having a structure in which a tensioner T for tying the cord member W is provided on the frame 1 while being connected so as not to be loosened using a wire W or a spring. According to such a modification, the left and right pedal devices 11L and 11R are connected by the raw member W, and therefore always reciprocate in cooperation with the raw member W when the pedals are alternately depressed. For this reason, it is possible to prevent the left and right pedal devices from excessively moving up and down.

  Further, as the cam-like contact member 12b that contacts the contact member 12a of the driving force transmitting means 12, as shown in FIGS. 14 (a) and 14 (b), a cam-like contact member having an elliptical shape is used. 14 and a cam-like contact member 45 formed of a small circle and an ellipse as shown in FIGS. 14 (c) and 14 (d), or a triangular shape 46 as shown in FIG. 15 (a), or A polygonal shape (not shown), a cam-like contact member 47 composed of a small circle and an ellipse arranged as in (b) (the inclination of the ellipse is different from that of FIG. 14 (c)), A cam-like contact member 48 composed of a small circle and a large circle as shown in 15 (c), and a cam-like contact member 49 in which three small circles are arranged as shown in FIG. May be provided.

  It is also possible to provide a rolling member such as a roller on the cam-like contact members 12Lb and 12Rb so that the contact members 12La and 12Ra come into contact therewith. It is also possible to provide rolling members such as rollers on the contact members 12La and 12Ra so that the cam-like contact members 12Lb and 12Rb are brought into contact therewith. According to these, the contact resistance can be reduced, and wear in the driving force transmission mechanism due to the contact can be reduced.

In the present embodiment, the driving force transmission means 12L, 12R has been described as being formed by a contact driving force transmission mechanism composed of a contact member and a cam-like contact member (see FIG. 7). In addition to the gravitational force acting on the member, the cam-like contact members 12Lb and 12Rb are brought into contact with the help of a driving force such as a stepping force. In order to maintain the contact member, the contact member is inadvertently used, for example, by using a spring member such as a coil spring, a link member connected so as to freely rotate between the contact member and the cam-like contact member, or the like. The cam-like contact member may be prevented from being lifted and separated.

  Of course, the contact member and the cam-like contact member may be configured in a manner similar to a so-called positive cam in order to always follow.

Further, a stopper 51 as shown in FIG. 1 may be provided above the guide means 10. Thereby, even if an inadvertent upward force acts on the pedal device 11, the slider 11b is stopped by the stopper 51 in the vicinity of the top dead center, thereby preventing the floating and rising unintentionally. pedal system can be made to prevent the disengagement from the guide means 10.

  In the above embodiment, as the guide means, the two guide rods 10La, 10Lb, 10Ra, 10Rb are arranged in parallel on each side, but the cross section of each guide rod is U-shaped or U-shaped. You may make it shape and arrange | position so that a guide roller may roll in the internal groove | channel. As a result, the vertical movement of the pedal devices 11L and 11R can be made smoother and more stable.

  Further, the guide means 10L and 10R may be formed by a single guide rod. In this case as well, it is formed in a U-shape or U-shaped cross section, and the guide roller or slider member is accommodated in such a manner that it does not deviate from the trajectory of the vertical movement, so that it rolls or slides. You can also.

In order to prevent the meshing state between the internal rotation gears 5L and 5R and the nationally fixed gears 6L and 6R from being visible from the outside, a cover that covers the internal rotation gear and the fixed gear may be attached. In this case, a slit may be formed in the cover to allow the pedal devices 11L and 11R to move up and down. In this case, the slit itself can be formed to have the function of the guide means. According to this modification, it is possible to prevent the meshing portions of the gears 5L, 5R, 6L, 6R from becoming dirty .

  Further, in the above embodiment, a case has been described in which the driving force extracting means is formed by a winding link mechanism in which the chain 13c is wound between the driving sprocket 13a and the driven sprocket 13b. As shown, the shaft drive system can be configured to transmit power. That is, instead of the driving sprocket 13a, the bevel gear 81 is attached to the crankshaft 3 so as to be integrally rotatable, the bevel gear 82 is provided instead of the driven rear transfer sprocket 13c, the bevel gear 83 is provided at both ends instead of the chain 13c, In this structure, a drive shaft 85 having 84 is provided. As a result, the bevel gear 81 meshes with the bevel gear 83 of the drive shaft 85, and the bevel gear 82 meshes with the bevel gear 84 of the drive shaft 85. <There is an effect that the force of stepping on the pedal 11 can be efficiently converted into a rotational motion and transmitted to the driven side.

  Further, in the above-described embodiment, the case where the crank device is incorporated in the normal type bicycle main body (frame) 1 in which the pedal is pedaled with the stepping force of the foot has been described, but instead of the modified example shown in FIG. As described above, the hand cycle unit 902 is detachably attached to the wheelchair unit 901, or the hand cycle unit 902 is fixedly attached to the frame 903 of the type of the hand cycle 900 formed by attaching the hand cycle unit 902 to the hand or arm. It is also possible to drive with the force of.

  That is, in this modified example, the crank arms on both the left and right sides of the crankshaft are extended in the same phase angle direction, that is, in a symmetric arrangement configuration, and the handle type pedal corresponding to the pedal 10 of the above embodiment is provided at the tip thereof. The other configuration is the same as that of the above embodiment. In such a modification, when the handle type pedal 905 provided with the pedal function is driven with the left and right hands, the driving force rotates the internal rotation gear, via the chain 906 which is a rotational force extracting means such as the chain 906. The front wheel 907 can be driven and the hand cycle 900 can be run.

  Therefore, according to the above-described modification, the rider of the wheelchair unit 901 can easily travel the hand cycle 900 by a simple operation of driving the handle type pedal 905 by hand. As well as being able to run with energy loss suppressed, it is possible to easily operate the hand cycle even for the elderly and the handicapped with poor leg strength, which in turn contributes to muscle training and physical strength improvement. .

  In the above modification, the handle type pedal 905 is provided symmetrically with respect to the hand cycle body, and the left and right are driven simultaneously. However, the handle type pedal is provided only on one side for driving. Needless to say, it is also possible to use the form.

  In addition, the hand cycle can be applied not only to the wheelchair type hand cycle applied in the modified example but also to a normal bicycle type hand cycle.

1 is an external perspective view schematically showing a schematic configuration of a crank device for a bicycle in an embodiment. FIG. 2 is an external side view showing a relationship between an inner gear and a guide means in the upper collar or its vicinity as viewed from the direction of arrow 11-l1 in FIG. In relation to the driving force transmission means in the above embodiment, (a) is an external perspective view showing a contact noise of the pedal device, (b) is an external perspective view showing a cam-like contact member of an internal gear, and (c) is an external perspective view. It is an assembly appearance perspective view showing the relative relation between the guide means and the driving force transmission means in the vicinity of the top dead center. It is the front view which showed the pedal crank apparatus for bicycles with sectional drawing concerning the Example of the said embodiment. FIG. 5 is a left side view of the state where the guide means viewed from the left side of FIG. 4 is omitted. FIG. 5 is an external perspective view for explaining assembly and disassembly in the pedal crank device of FIG. It is action explanatory drawing explaining the influence which the change of the relative position of the contact member of a driving force transmission means and a cam-like contact member has on the rolling of an internal rotation gear. It is an external appearance perspective view of the fixed gear which concerns on the modification in the said embodiment. FIG. 9 is a front view showing a state in which a part of a sprocket-type internal gear meshing with the fixed gear of FIG. 8 is partially omitted. It is a front view in the modification which shows another meshing state of the said embodiment. It is a front view in the modification which shows another meshing state of the said embodiment. FIG. 10 is a side view showing a modification of the contact member, wherein (a) is a first modification thereof, and (b) is a second modification thereof. It is a side view in the modification of this Embodiment. (A) is a side view of the cam-like contact member, (b) is a side view of (a), (c) is a side view of yet another modification, and (d) is a side view of (c). It is a side view. It is a side view which shows the other modification of a cam-like contact member. It is the schematic plan view which showed typically the another modification of this Embodiment. It is a general | schematic external appearance perspective view in another modification of this Embodiment.

Explanation of symbols

1 Fixed member (vehicle body)
1a Base plate
2 Bearing part
2a Journal
3 Crankshaft (output shaft)
4L left crank arm (crank arm)
4R right crank arm (crank arm)
5L left internal gear (internal gear)
5R left internal gear (internal gear)
6L left fixed gear (fixed gear)
6R right fixed gear (fixed gear)
10L, 10R guide means
10La, 10Lb, 10Ra, 10Rb guide bar
11L, 11R pedal device (input member)
11La, 11Ra pedal
11Lb, 11Rb slider
12L, 12R Driving force transmission means
12La, 12Ra contact member
12Lb, 12Rb Cam-like contact member
13a prime mover sprocket
13b driven sprocket
13c chain
40, 42 Upward movement regulation part
41, 43 Contact member
44-49 Cam-like contact member
60, 61, 62 fixed gear
50, 63 internal gear
51 Stopper section
81-84 bevel gear
85 drive shaft
110 Guide means
500 internal gear
500b V-shaped groove
900 hand cycle
901 Wheelchair
902 Hand cycle
905 Handle type pedal
906 chain
907 front wheel
L Vertical center axis connecting the axis P1 of the fixed gear and the axis P2 of the internal gear at the top dead center
P1 fixed gear shaft center
P2 Axle gear shaft
W Elementary material

Claims (16)

A crankshaft rotatably provided on a fixed member via a bearing portion, crank arms that are bent and extended on both sides of the crankshaft, a pair of inwardly rotating gears that are rotatably provided on these crank arms and inverted; A pair of fixed gears provided on the fixed member side and meshed so as to roll (revolve) while rotating in rotation as planetary gears, a pair of guide means provided on the fixed gear side; A pair of input members for inputting a driving force provided so as to reciprocate between the top dead center and the bottom dead center guided by these guide means, and between these input members and the above-mentioned internal gears When the internal gear is at or near top dead center, the driving force applied to the input member is transmitted so that a rotational moment is generated in each internal gear, and each crank arm is transmitted. A pair of wheel drive Force transmitting means, and provided on the crankshaft, a crank and wherein the provided with the driving force extraction means for extracting the driving force to the outside.   The gear ratio between each of the internal gears and each of the fixed gears is such that the internal gear has a relationship of rotating once when the fixed gear rolls around the fixed gear for one rotation. 2. The crank device according to claim 1, wherein:   Each driving force transmission means is driven by contact comprising each contact member provided on each input member side and each cam-like contact member provided in contact with each contact member and provided on each inner rotation gear side. 3. The crank device according to claim 1, wherein the crank device is formed by a force transmission mechanism.   Each input member that is guided by the guide means and reciprocates between the top dead center or the vicinity thereof and the bottom dead center or the vicinity of the bottom dead center passes through the axis of the fixed gear or the vicinity thereof. When the reciprocating motion is performed along an axis passing through the top and bottom dead centers, and each of the inner rotation gears is at or near the top dead center, the contact member of the driving force transmission mechanism by the contact and the cam-like contact member, 4. The crank apparatus according to claim 3, wherein the contact portion is set at a position deviated from an axis passing through the upper and lower dead centers.   The crank device according to claim 3 or 4, wherein each contact member of the driving force transmission mechanism by contact is provided with an upward movement amount regulating means for regulating an upward movement amount.   The one input member side and the other input member side are connected via a rope member, and both the one and other inputs are reciprocated in cooperation with each other via the rope member. The crank device according to claim 3 or 4.   The crank device according to any one of claims 1 to 6, wherein the internal gear is formed in a sprocket shape, and the fixed gear is formed in a chain shape.   The crank device according to any one of claims 1 to 6, wherein the internal gear is formed in a chain form, and the fixed gear is formed in a sprocket form.   The crank device according to any one of claims 1 to 6, wherein the combination of the garden gear and the internal gear is formed by a toothed belt.   A vehicle comprising the crank device according to any one of claims 1 to 9.   A crank device according to any one of claims 1 to 9 for inputting a driving force that is guided by the guide means so as to reciprocate between a top dead center and a bottom dead center. A crank pedal device further comprising a pedal device.   A vehicle comprising the crank pedal device according to claim 11.   A crankshaft rotatably provided on the fixed member via a bearing portion, a crank arm that bends and extends to the crankshaft, an internal rotation gear that is rotatably provided on the crank arm and rotates inward, and on the fixed member side Fixed gears that mesh with each other so that each of the internal gears rotates and revolves like a planetary gear, guide means provided on the fixed gear side, and a top dead center guided by the guide means. And an input member for inputting a driving force provided so as to reciprocate between the upper dead center and the bottom dead center, and is interposed between the input member and the internal rotation gear. A driving force applied to the input member when it is in the vicinity thereof is transmitted to the internal gear so that a rotational moment is generated in the internal gear, and provided in the driving force transmission means for rotating the crank arm, and the crankshaft; Above driving force Crank and wherein the provided with the driving force extraction means for extracting to the outside.   Each driving force transmission means is driven by contact comprising each contact member provided on each input member side and each cam-like contact member provided in contact with each contact member and provided on each inner rotation gear side. 14. The crank device according to claim 13, wherein the crank device is formed by a force transmission mechanism. A crankshaft that is rotatably provided on the vehicle body via a bearing portion, a crank arm that is bent and extends to the crankshaft, an internal rotation gear that is rotatably provided on the crank arm and inwardly rotates, and on the vehicle body side Fixed gears that mesh with each other so that each of the internal gears rotates and revolves like a planetary gear, guide means provided on the vehicle body side, and a top dead center guided by the guide means. An input member for inputting a driving force provided so as to reciprocate between the upper dead center and the bottom dead center. Or, when it is in the vicinity thereof, the driving force applied to the input member is transmitted so that a rotational moment is generated in the internal rotation gear, and the driving force transmitting means for rotating the crank arm and the driving force transmitting means. Combined handle type Le, and the provided on the crankshaft, a crank pedal device for a vehicle, characterized in that it comprises a driving force extraction means issuing take the driving force to the outside.   Each driving force transmission means is driven by contact comprising each contact member provided on each input member side and each cam-like contact member provided in contact with each contact member and provided on each inner rotation gear side. 16. The vehicle crank pedal device according to claim 15, wherein the vehicle crank pedal device is formed by a force transmission mechanism.

Images