DE102021101259A1 - Driver posture changing device for a human-powered vehicle - Google Patents

Abstract

A driver posture changing device for a human-powered vehicle includes a movable member, an actuator, and an intermediate structure. The actuator is configured to generate actuation force to move the movable element relative to the actuator. The intermediate structure is configured to transfer the operating force from the actuator to the movable element to move the movable element relative to the actuator. The intermediate structure is configured to limit force from being transmitted from the movable element to the actuator via the intermediate structure.

Description

BACKGROUND OF THE INVENTION

TECHNICAL FIELD OF THE INVENTION

The present invention relates to a driver's posture changing device for a human-powered vehicle.

BACKGROUND DESCRIPTION

A human-powered vehicle includes a device configured to change a driver's posture. Such devices include an actuator, a moving element and an additional element. The operating device moves the moving element to operate the additional element. The operating force is transmitted from the operating device to the additional element via the moving element to move the additional element. However, a reaction force can also be transmitted from the additional element to the actuating device via the movement element. This can damage the actuator.

SUMMARY OF THE INVENTION

In accordance with a first aspect of the present invention, a driver posture changing device for a human-powered vehicle includes a movable member, an actuator, and an intermediate structure. The actuator is configured to generate actuation force to move the movable element relative to the actuator. The intermediate structure is configured to transfer the operating force from the actuator to the movable element to move the movable element relative to the actuator. The intermediate structure is set up to limit a/the transmission of a force from the movable element via the intermediate structure to the actuator.

With the driver posture changing device according to the first aspect, it is possible to protect the actuator from a force transmitted from the movable member to the actuator.

According to a second aspect of the present invention, the driver posture changing device according to the first aspect is configured such that the intermediate structure includes a torque diode. The actuator is configured to be tethered to the movable element via the torque diode.

With the driver posture changing device according to the second aspect, the torque diode can simplify the intermediate structure by protecting the actuator from a force transmitted from the movable member to the actuator.

According to a third aspect of the present invention, the driver posture changing device according to the first or second aspect is configured such that the actuator is configured to generate an operating torque to rotate the movable member relative to the actuator about a rotation axis. The intermediate structure is configured to transmit the actuation torque from the actuator to the movable member to rotate the movable member relative to the actuator about the axis of rotation. The intermediate structure is arranged to limit transmission of the rotational force from the movable element via the intermediate structure to the actuator.

With the driver posture changing device according to the third aspect, it is possible to use the operation torque generated by the actuator to simplify at least the actuator or the intermediate structure.

According to a fourth aspect of the present invention, the driver posture changing device according to any one of the first to third aspects is configured such that the actuator includes a motor configured to generate the operating force.

With the driver posture changing device according to the fourth aspect, the motor can simplify the actuator and/or make the actuator compact.

According to a fifth aspect of the present invention, the driver posture changing device according to the fourth aspect is configured such that the actuator has a gear structure for transmitting the operating force from the motor to the intermediate structure.

With the driver posture changing device according to the fifth aspect, the transmission structure can reduce the load on the engine.

In accordance with a sixth aspect of the present invention, the driver posture changing device according to any one of the first to fifth aspects further includes a cam follower movable relative to the actuator. The moveable element includes a cam surface configured to move the cam follower relative to the actuator.

With the driver posture changing device according to the sixth aspect, it is possible to move another member using the cam follower and the cam surface of the movable member.

According to a seventh aspect of the present invention, the driver posture changing device according to any one of the first to sixth aspects further includes a position detector configured to detect a position of the movable member relative to the actuator.

With the driver posture changing device according to the seventh aspect, it is possible to use the position of the movable member detected by the position detector to control the actuator.

In accordance with an eighth aspect of the present invention, the driver posture changing device according to the seventh aspect further includes a detection object configured to be detected by the position detector.

With the driver posture changing device according to the eighth aspect, it is possible to reliably detect the position of the movable member using the position detector and the detection object.

According to a ninth aspect of the present invention, the driver posture changing device according to the eighth aspect is configured such that the detection object is configured to be moved by the actuator in accordance with movement of the movable member.

With the driver posture changing device according to the ninth aspect, it is possible to more reliably detect the position of the movable member with the position detector and the detection object.

According to a tenth aspect of the present invention, the driver posture changing device according to the eighth or ninth aspect is configured such that the detection object includes a magnet configured to generate a magnetic field. The position detector includes a magnetic detector that is set up to detect a change in the magnetic field.

With the driver posture changing device according to the tenth aspect, it is possible to simplify the position detector and the detection object.

According to an eleventh aspect of the present invention, the driver posture changing device according to any one of the eighth to tenth aspects is configured such that the detection object is configured to be rotated by the actuator in accordance with movement of the movable member.

With the driver posture changing device according to the eleventh aspect, it is possible to more reliably detect the position of the movable member with the position detector and the detection object.

According to a twelfth aspect of the present invention, the driver posture changing device according to the eleventh aspect is configured such that the position detector is configured to detect a rotational position of the detection object.

With the driver posture changing device according to the twelfth aspect, it is possible to simplify the position detector and the detection object and/or to make the position detector and the detection object compact.

According to a thirteenth aspect of the present invention, the driver posture changing device according to any one of the seventh to twelfth aspects further includes a control device configured to control the actuator to change a movement amount of the movable member based on the position detected by the position detector.

With the driver posture changing device according to the thirteenth aspect, it is possible to reliably control the movement of the movable member.

In accordance with a fourteenth aspect of the present invention, the driver posture changing device according to any one of the first to seventh aspects further includes a first member, a second member, and a hydraulic structure. The first element extends in a longitudinal direction. The second element is configured to be longitudinally movable relative to the first element. The hydraulic structure includes a first chamber, a second chamber, and a valve member. The second chamber is configured to be in fluid communication with the first chamber. The valve member is moveable relative to at least one of the first and second members to vary the flow volume of fluid flowing between the first chamber and the second chamber. The actuator is set up to move the valve move element over the moveable element to change the flow volume of fluid.

With the driver posture changing device according to the fourteenth aspect, it is possible to change the flow volume of the fluid flowing between the first chamber and the second chamber using the actuator and the movable member, the actuator before moving from the movable member to the respectively force transmitted to the actuator is protected.

According to a fifteenth aspect of the present invention, the driver posture changing device according to the fourteenth aspect is configured such that the actuator is configured to move the valve member via the movable member to change a state of the hydraulic structure between a locked state in which the first member and the second member are prevented from moving relative to each other in the longitudinal direction, and a setting state in which the first member and the second member are movable relative to each other in the longitudinal direction to change.

With the driver posture changing device according to the fifteenth aspect, it is possible to change the state of the hydraulic structure between the locking state and the setting state using the actuator and the movable member, the actuator being in front of one from the movable member to the actuator transmitted power is protected.

In accordance with a sixteenth aspect of the present invention, the driver posture changing device according to the fourteenth or fifteenth aspect further includes a position detector, a detection object, and a control device. The position detector is set up to detect a position of the movable element relative to the actuator. The detection object is set up to be captured or detected by the position detector. The control device is configured to control the actuator to change an amount of movement of the movable member based on the position detected by the position detector. The control device is set up to control the actuator based on the position detected or detected by the position detector in order to move the valve element over the movable element, so that the flow volume of the liquid is changed.

With the driver posture changing device according to the sixteenth aspect, it is possible to reliably change the flow volume of the fluid flowing between the first chamber and the second chamber by using the position detector, the detection object, and the control device.

In accordance with a seventeenth aspect of the present invention, the rider posture changing device according to any one of the fourteenth to sixteenth aspects further includes a saddle mounting structure configured to fixedly mount a saddle to one of the first and second members.

With the rider posture changing device according to the seventeenth aspect, it is possible to apply the actuator, the movable member, and the intermediate structure to an adjustable seat post including the seat mounting structure.

character list

• 1 ist eine perspektivische Ansicht einer Fahrer-Haltungs-Änderungsvorrichtung in Übereinstimmung mit einer Ausführungsform, mit einem schematischen Blockdiagramm eines Steuersystems.
• 2 ist eine Querschnittsansicht der Fahrer-Haltungs-Änderungsvorrichtung entlang der Linie II-II von 1, mit dem schematischen Blockdiagramm des Steuersystems.
• 3 ist eine Teilquerschnittsansicht der in 2 dargestellten Fahrer-Haltungs-Änderungsvorrichtung.
• 4 ist eine Teilquerschnittsansicht der in 2 dargestellten Fahrer-Haltungs-Änderungsvorrichtung.
• 5 ist eine Teilquerschnittsansicht der in 2 dargestellten Fahrer-Haltungs-Änderungsvorrichtung.
• 6 ist eine perspektivische Teilansicht einer inneren Struktur der in 2 dargestellten Fahrer-Haltungs-Änderungsvorrichtung.
• 7 ist eine perspektivische Teil-Explosionsansicht des inneren Aufbaus der in 6 dargestellten Fahrer-Haltungs-Änderungsvorrichtung.
• 8 ist eine Draufsicht auf ein bewegliches Element und einen Nockenstößel der in 6 dargestellten Fahrer-Haltungs-Änderungsvorrichtung (Ausgangsstellung).
• 9 ist eine Draufsicht auf ein bewegliches Element und einen Nockenstößel der in 6 dargestellten Fahrer-Haltungs-Änderungsvorrichtung (betätigte Position).
• 10 ist eine Draufsicht auf ein bewegliches Element und einen Nockenstößel der in 6 dargestellten Fahrer-Haltungs-Änderungsvorrichtung (Endposition).
• 11 ist eine Draufsicht auf die innere Struktur der in 6 dargestellten Fahrer-Haltungs-Änderungsvorrichtung.
• 12 ist ein Diagramm, das eine Beziehung zwischen einer Bewegungsgeschwindigkeit eines zweiten Elements und einer Drehposition des beweglichen Elements zeigt.
• 13 ist ein schematisches Blockdiagramm des in 1 dargestellten Steuersystems.
• 14 ist ein Flussdiagramm, das die Steuerung des in 1 dargestellten Steuersystems zeigt.
• 15 ist ein Flussdiagramm, das die Steuerung des in 1 dargestellten Steuersystems zeigt.
• 16 ist eine Aufrissansicht einer Fahrer-Haltungs-Änderungsvorrichtung in Übereinstimmung mit einer Modifikation der Ausführungsform.
• 17 ist ein schematisches Blockdiagramm eines Steuersystems in Übereinstimmung mit einer Modifikation.

A more complete understanding of the invention and many attendant advantages will be readily obtained as the same becomes better understood by reference to the following detailed description in conjunction with the accompanying figures.

• 1 14 is a perspective view of a driver posture changing device in accordance with an embodiment, with a schematic block diagram of a control system.
• 2 12 is a cross-sectional view of the driver's posture changing device taken along line II-II of FIG 1 , with the schematic block diagram of the control system.
• 3 is a partial cross-sectional view of FIG 2 shown driver posture changing device.
• 4 is a partial cross-sectional view of FIG 2 shown driver posture changing device.
• 5 is a partial cross-sectional view of FIG 2 shown driver posture changing device.
• 6 12 is a partial perspective view of an internal structure of FIG 2 shown driver posture changing device.
• 7 13 is a partially exploded perspective view of the internal structure of FIG 6 shown driver posture changing device.
• 8th Fig. 12 is a plan view of a movable member and a cam follower of Fig 6 illustrated driver posture changing device (initial position).
• 9 Fig. 12 is a plan view of a movable member and a cam follower of Fig 6 illustrated driver posture changing device (operated position).
• 10 Fig. 12 is a plan view of a movable member and a cam follower of Fig 6 illustrated driver posture changing device (final position).
• 11 is a plan view of the internal structure of FIG 6 shown driver posture changing device.
• 12 12 is a graph showing a relationship between a moving speed of a second member and a rotational position of the movable member.
• 13 is a schematic block diagram of the in 1 illustrated control system.
• 14 is a flowchart showing the control of the in 1 illustrated control system shows.
• 15 is a flowchart showing the control of the in 1 illustrated control system shows.
• 16 14 is an outline view of a driver's posture changing device in accordance with a modification of the embodiment.
• 17 12 is a schematic block diagram of a control system in accordance with a modification.

DESCRIPTION OF THE EMBODIMENTS

The embodiment(s) will now be described with reference to the accompanying figures, in which like reference numerals indicate corresponding or identical elements in the different figures.

As in 1 As can be seen, a control system 10 for a human-powered vehicle 2 comprises a driver's posture changing device 12 and an operating device 13. The operating device 13 is set up to operate or to control the driver's posture changing device 12. The operating device 13 is set up to receive a user input U. The driver posture changing device 12 is configured to move in response to the user input U received from the operating device 13 .

The driver posture changing device 12 includes a first member 14 and a second member 16. The first member 14 extends in a longitudinal direction D1. The second element 16 is configured to be movable relative to the first element 14 in the longitudinal direction D1. The first element 14 and the second element 16 are movable relative to each other in the longitudinal direction D1.

The first member 14 includes a first tube 14T. The second member 16 includes a second tube 16T. The second tube 16T is movably connected to the first tube 14T. The second tube 16T is movably provided in the first tube 14T. However, the first member 14 and the second member 16 may also have a shape other than a tube.

The rider posture changing device 12 further includes a saddle mounting structure MS configured to fixedly mount a saddle to one of the first member 14 and the second member 16 . In the present embodiment, the saddle mounting structure MS is configured to firmly mount the saddle to the second member 16 . The saddle mounting structure MS is attached to the second member 16 to firmly mount the saddle to the second member 16 . The first member 14 is configured to be mounted on a body 2A of the human-powered vehicle 2 . However, the saddle mounting structure MS can be attached to the first member 14 to firmly mount the saddle to the first member 14 . In such an embodiment, the second element 16 is configured to be mounted on the body 2A of the human-powered vehicle 2 .

In the present application, a human-powered vehicle includes various types of bicycles such as a mountain bike, a racing bike, a city bike, a cargo bike, a hand bike, and a recumbent bike. The muscle-powered vehicle also includes an electric bicycle (e-bike). The electric bicycle includes an electrically assisted bicycle configured to assist in driving a vehicle with an electric motor. However, the total number of wheels of the human-powered vehicle is not limited to two. For example, the human-powered vehicle includes a one-wheel vehicle or a three or more wheel vehicle. In particular, the human-powered vehicle is not a vehicle that only uses an internal combustion engine as a driving force. In general, the human-powered vehicle is assumed to be a light road vehicle, which is a vehicle that does not require a driver's license to travel on public roads.

In the present application, the following directional terms refer to "front", "rear", "forward", "backward", "left", "right", "transverse", "up" and "down" and all other similar directional terms those directions that are determined based on a user (eg, a driver) who is in the user's standard position (eg, on a saddle or a seat) in the human-powered vehicle 2 and faces a steering or handlebar. Accordingly, those terms used to describe the driver posture changing device 12 or other components should be interpreted in accordance with the human-powered vehicle 2 equipped with the driver posture changing device 12 in an upright driving position on a horizontal surface will.

As in 2 As can be seen, the first member 14 includes a first end 14A and a first additional end 14B. The first member 14 extends from the first end 14A to the first additional end 14B in the longitudinal direction D1. The second member 16 includes a second end 16A and a second additional end 16B. The second element 16 extends from the second end 16A to the second additional end 16B in the longitudinal direction D1. The first end 14A of the first member 14 is provided above the first additional end 14B in a state where the driver posture changing device 12 is mounted on the vehicle body 2A. The second end 16A of the second member 16 is provided above the second additional end 16B in a state where the driver posture changing device 12 is mounted on the vehicle body 2A. Thus, the first end 14A may also be referred to as the top end of the first member 14. The second end 16A can also be referred to as an upper end of the second member 16 . The saddle mounting structure MS is attached to the second end 16A of the second member 16 . However, the saddle mounting structure MS may be attached to other parts of the rider posture changing device 12 .

The driver posture changing device 12 has a movable range/movable range MR. For example, the range of motion MR is defined starting from the second end 16A of the second element 16 . The movable range MR is a range in which the second element 16 is movable relative to the first element 14 in the longitudinal direction D1. The range of motion MR includes a first mechanical limit ML1 and a second mechanical limit ML2. The range of motion MR is defined between the first mechanical limit ML1 and the second mechanical limit ML2 in the longitudinal direction D1.

The driver posture changing device 12 includes a first stopper ST11, a first receiving member ST12, a second stopper ST21, and a second receiving member ST22. The first stopper ST11 is fixed to the first end 14A of the first member 14 . The first receiving element ST12 is fixed to the second element 16 . The second stopper ST21 is fixed to the first additional end 14B of the first member 14 . The second receiving member ST22 is fixed to the second additional end 16B of the second member 16 .

The second member 16 is at the first mechanical limit ML1 in a state where the first stopper ST11 is in contact with the first receiving member ST12. The second member 16 is at the second mechanical limit ML2 in a state where the second stopper ST21 is in contact with the second receiving member ST22. The first stopper ST11 and the first receiving element ST12 define the first mechanical limit ML1. The second stopper ST21 and the second receiving element ST22 define the second mechanical limit ML2.

As in 3 1, the driver posture changing device 12 further includes a hydraulic structure 18. The hydraulic structure 18 includes a first chamber C1, a second chamber C2, and a valve element 20. The second chamber C2 is configured to be in fluid communication with the first chamber C1 stand. The valve member 20 is moveable relative to at least one of the first member 14 and the second member 16 to vary the volume of fluid flowing between the first chamber C1 and the second chamber C2.

The hydraulic structure 18 includes a passage PW. The passage PW is provided between the first chamber C1 and the second chamber C2. The valve element 20 is configured to change the fluid communication state of the hydraulic structure 18 between a closed state in which the valve element 20 closes the passage PW and an open state in which the valve element 20 opens the passage PW. The first chamber C1 and the second chamber C2 are filled with a substantially incompressible fluid (e.g. oil).

The hydraulic structure 18 includes a valve structure 21. The valve element 20 is in relative to the valve structure 21 between a closed position P11 and an open position P12 Movable in longitudinal direction D1. The hydraulic structure 18 is in the closed state when the valve element 20 is in the closed position P11. The hydraulic structure 18 is in an open state when the valve element 20 is in the open position P12.

The driver posture changing device 12 has a locked state in which the first member 14 and the second member 16 are not movable relative to each other in the longitudinal direction D1. The driver posture changing device 12 has a setting state in which the first member 14 and the second member 16 are relatively movable in the longitudinal direction D1. The driver posture changing device 12 is in the locked state when the hydraulic structure 18 is in the closed state. The driver posture changing device 12 is in the adjustment state when the hydraulic structure 18 is in the open state.

The first member 14 includes a cap structure 14C attached to the first tube 14T. The cap structure 14C includes the second plug ST21. The second member 16 includes a plurality of splines/keys/wrenches 16K attached to the second tube 16T. The splines 16K are grouped at regular intervals in the circumferential direction. The plurality of splines 16K include the second receiving member ST22. The first member 14 has a plurality of guide grooves 14G extending in the longitudinal direction D1. The splines 16K are provided in the guide groove 14G to prevent the second member 16 from rotating relative to the first member 14 .

As in 4 1, the hydraulic structure 18 includes a first bracket 22 and a first inner tube 24. The first bracket 22 is attached to the first additional end 14B of the first member 14. As shown in FIG. The first inner tube 24 is fixed to the first bracket 22 and provided in the first member 14 . The first inner tube 24 extends from the first bracket 22 in the longitudinal direction D1. The first carrier 22 includes the first receiving element ST12.

As in 3 As can be seen, the valve structure 21 is attached to one end of the first inner tube 24 . The valve structure 21 includes an internal cavity 21A. The first inner tube 24 includes a lumen 24A. The valve element 20 is movably provided in the inner cavity 21A and the cavity 24A. The valve element 20 and the valve structure 21 define a valve chamber C3 in the internal cavity 21A.

As in 5 1, the hydraulic structure 18 includes a second bracket 28, an intermediate bracket 30, and a second inner tube 32. The second bracket 28 is attached to the second end 16A of the second member 16. As shown in FIG. The second bracket 28 is provided integrally with the saddle mounting structure MS and connects the saddle mounting structure MS to the second member 16 . The intermediate support 30 is attached to the second additional end 16B of the second element 16 . The second inner tube 32 is provided in the second member 16 and arranged between the second bracket 28 and the intermediate bracket 30 . The second bracket 28 and intermediate brackets 30 are attached to the second member 16 to retain the second inner tube 32 within the second member 16 . The second member 16, the second inner tube 32, the second bracket 28 and the intermediate brackets 30 form an inner space 33. The intermediate bracket 30 includes the first plug ST11.

The hydraulic structure 18 includes a floating piston 34. The floating piston 34 is movably provided in the inner space 33 to partition the inner space 33 into the second chamber C2 and a biasing chamber C4. The preload chamber C4 is filled with a compressible fluid (e.g., gas such as air) to generate a preload force for elongating the driver posture changing device 12 . The compressible fluid is compressed in the preload chamber C4 to generate the preload force in a state where the second member 16 is at the first mechanical limit ML1 (see e.g 2 ).

As in 3 As can be seen, the intermediate support 30 includes a support opening 30A. The first inner tube 24 extends through the support opening 30A. The valve structure 21 is movably provided in a cavity 32A of the second inner tube 32 . The valve structure 21 is in sliding contact with an inner peripheral surface 32B of the second inner tube 32. As in FIG 5 As can be seen, the valve structure 21, the second inner tube 32 and the second carrier 28 form the first chamber C1 in the second inner tube 32.

As in 3 As can be seen, the first inner tube 24, the valve structure 21, the second inner tube 32 and the intermediate support 30 define a first intermediate chamber C5 and a second intermediate chamber C6. The first chamber C1 communicates with the valve chamber C3 via at least one hole. The valve chamber C3 is arranged to communicate with the first intermediate chamber C5 via at least one hole. The first intermediate chamber C5 communicates with the second intermediate chamber C6 via at least one bore. The second intermediate chamber C6 communicates with the second chamber C2 via at least one hole. The passage PW includes the valve chamber C3, the first intermediate chamber C5, the second intermediate chamber C6, and the plurality of holes.

The valve structure 21 includes a valve base 21B and a valve seat 21C. The valve seat 21C is fixed to the valve base 21B to come in contact with the valve element 20 . The valve element 20 is in contact with the valve seat 21C to close the passage PW in the closed state when the valve element 20 is in the closed position P11. The valve element 20 is spaced from the valve seat 21C to open the passage PW in the open state where the valve element 20 is in the open position P12.

The driver posture changing device 12 includes a biasing member 36 for biasing the valve member 20 toward the closed position P11. The biasing member 36 is provided in the first inner tube 24 . For example, the biasing element 36 includes a spring. The valve element 20 is in the closed position P<b>11 in a state in which the valve element 20 is pressed against the valve seat 21</b>C of the valve structure 21 by the biasing force of the biasing member 36 .

The substantially incompressible fluid does not flow between the first chamber C1 and the second chamber C2 in the closed state where the valve element 20 closes the passage PW. Thus, in the closed state, the first element 14 and the second element 16 are fixedly positioned relative to one another in the longitudinal direction D1.

In the open state, in which the valve element 20 opens the passage PW, the substantially incompressible fluid can flow between the first chamber C1 and the second chamber C2 through the passage PW. For example, the substantially incompressible fluid flows from the first chamber C1 to the second chamber C2 through the passage PW when the rider's weight is applied to the second member 16 in the open state. This forces the floating piston 34 toward the preload chamber C4 relative to the first member 14, thereby increasing the volume of the second chamber C2 while compressing the compressible fluid in the preload chamber C4. This moves the second member 16 downward relative to the first member 14 against the base force of the preload chamber C4 while the rider's weight acts on the second member 16, allowing the rider to lower the saddle with his weight in the open state.

The compressible fluid compressed in the biasing chamber C4 biases the second member 16 to move up relative to the first member 14 in the longitudinal direction D1 and to move the floating piston 34 downward in the longitudinal direction D1. When the rider's weight is released from the second member 16 in the open state, the substantially incompressible fluid flows from the second chamber C2 to the first chamber C1 through the passage PW due to the biasing force of the biasing chamber C4. This moves the second member 16 upwardly relative to the first member 14 while relieving the rider's weight from the second member 16, allowing the rider to raise the saddle by relieving the rider's weight when open.

As in 4 1, the driver posture changing device 12 for the human-powered vehicle 2 includes a movable member 42, an actuator 44, and an intermediate structure 45. The actuator 44 is configured to generate operating force to move the movable member 42 relative to the actuator 44 move. The actuator 44 is configured to move the valve member 20 via the moveable member 42 to vary the flow volume of the fluid.

The actuator 44 is set up to move the valve element 20 via the movable element 42 to switch a state of the hydraulic structure 18 between a locking state in which the first element 14 and the second element 16 are prevented from moving relative to one another in the longitudinal direction D 1, and a setting state in which the first member 14 and the second member 16 are movable relative to each other in the longitudinal direction D1. The actuator 44 is configured to move the valve element 20 via the movable element 42 to move the valve element 20 between the closed position P11 and the open position P12.

As in 6 As shown, the intermediate structure 45 is configured to transmit the actuation force from the actuator 44 to the movable element 42 to move the movable element 42 relative to the actuator 44 . The intermediate structure 45 is configured to limit force being transmitted from the movable element 42 to the actuator 44 via the intermediate structure 45 .

The actuator 44 is configured to generate actuation torque to rotate the movable member 42 relative to the actuator 44 about a rotation axis A1. The intermediate structure 45 is configured to transfer the actuation torque from the actuator 44 to the moveable member(s) 42 to rotate the moveable member 42 relative to the actuator 44 about the axis of rotation A1. The intermediate structure 45 is configured to limit rotational force from the movable member 42 being transmitted to the actuator 44 via the intermediate structure 45 . The intermediate structure 45 is provided between the movable member 42 and the actuator 44 .

In the present embodiment, the intermediate structure 45 includes a torque diode TD. The actuator 44 is configured to be tethered to the movable member 42 via the torque diode TD. The torque diode TD is provided between the movable member 42 and the actuator 44 . However, the intermediate structure 45 may include a device other than the torque diode TD. For example, the intermediate structure 45 may include a worm gear.

The actuator 44 includes a motor 46 configured to generate the actuation force. The actuator 44 includes an output shaft 47. The output shaft 47 is rotatable relative to the movable member 42 about an actuation axis of rotation A2. The motor 46 is set up to rotate the output shaft 47 about the actuating axis of rotation or rotation A2. The output shaft 47 is connected to a rotor of the motor 46 . Examples of the motor 46 include a DC motor and a stepping motor.

The actuator 44 is configured with a gear structure 48 to transmit the operating force from the motor 46 to the intermediate structure 45 . The transmission structure 48 is set up to reduce a speed of the movable element 42 compared to a speed of the output shaft 47 . The transmission structure 48 includes an output gear 48A, a first idler gear 48B, a second idler gear 48C, and a drive gear 48D. The output gear 48A is fixed to the output shaft 47 to be rotatable together with the output shaft 47 about the operation rotation axis A2. The first intermediate gear 48B and the second intermediate gear 48C are rotatable about an intermediate axis of rotation A3. The pickup gear 48D is rotatably connected to the movable member 42 about the axis of rotation A1. The output gear 48A is configured to mesh/engage with the first intermediate gear 48B. The second idler gear 48C is configured to mesh with the take-up gear 48D. The structure of the gear structure 48 is not limited to the above structure.

As in 4 1, the driver posture changing device 12 further includes a housing 49. The housing 49 is configured to be attached to one of the first member 14 and the second member 16. As shown in FIG. In the present embodiment, the housing 49 is configured to be attached to the first member 14 . However, the housing 49 may be configured to be attached to the second member 16 .

The movable element 42 and the actuator 44 are fixed to the housing 49 . The intermediate structure 45 and the motor 46 are fixed to the housing 49 with fasteners. The gear structure 48 is rotatably connected to the housing 49 . The output gear 48A, the first idler gear 48B, the second idler gear 48C and the take-up gear 48D are rotatably supported in the case 49. As shown in FIG.

As in 7 1, the driver posture changing device 12 further includes a cam follower 50. The cam follower 50 is movable relative to the actuator 44. As shown in FIG. Movable member 42 includes a cam surface 42A configured to move cam follower 50 relative to actuator 44 . The cam surface 42A is at least partially inclined relative to the axis of rotation A1. In the present embodiment, the cam surface 42A is partially inclined relative to the axis of rotation A1.

The movable member 42 includes a tubular body 52 relatively rotatable about the axis of rotation A1. The cam surface 42A is provided at an axial end of the tubular body 52 . The tubular body 52 extends along the axis of rotation A1.

As in 4 As can be seen, the cam follower 50 is fixed to the valve element 20 relative to the actuator 44 to be movable together with the valve element 20 between the closed position P11 and the open position P12 in the longitudinal direction D1.

As in 8th and 9 As shown, cam surface 42A is configured to move cam follower 50 and valve element 20 relative to actuator 44 between closed position P11 and open position P12. The cam surface 42A is at least partially inclined at an inclined angle with respect to the axis of rotation A1. Cam surface 42A is configured to move cam follower 50 and valve member 20 relative to actuator 44 against the biasing force of biasing member 36 toward open position P12. Thereby, the cam surface 42A receives a reaction force from the cam follower 50. The reaction force may cause the movable member 42 to rotate backwards against the rotational driving force of the motor 46 of the actuator 44. However, the intermediate structure 45 is configured to prevent the force from being transmitted from the movable element 42 to the actuator 44 via the intermediate structure 45 . Accordingly, the reaction force is not transmitted from the movable member 42 to the motor 46 of the actuator 44 . The intermediate structure 45 protects the actuator 44 from the reaction force applied by the valve element 20 via the cam follower 50 .

As in the 8th and 9 As can be seen, the moveable member 42 includes a first peripheral surface 42B and a second peripheral surface 42C. The first peripheral surface 42B is configured to stop the rotation of the movable member 42 relative to the cam follower 50 and valve member 20 . The second peripheral surface 42C is configured to stop the rotation of the movable member 42 relative to the cam follower 50 and valve member 20 .

As in 8th As can be seen, the first peripheral surface 42B is configured to be spaced apart from the cam follower 50 in a state where the cam surface 42A positions the cam follower 50 and the valve element 20 in the closed position P11. As in 9 As shown, the second peripheral surface 42C is configured to be in contact/contact with the cam follower 50 to stop the cam follower 50 in the open position P12. As in 10 As can be seen, the cam surface 42A of the movable member 42 is spaced from the cam follower 50 in the longitudinal direction D1 in a state where the first peripheral surface 42B is in contact with the cam follower 50 .

As in 11 As can be seen, the cam surface 42A extends circumferentially about the axis of rotation A1 from the first circumferential surface 42B to the second circumferential surface 42C. The movable member 42 is rotatable relative to the actuator 44 about the axis of rotation A1 from a home position P31 to an actuated position P32 to move the cam follower 50 from the closed position P11 (see e.g. 8th ) to the open position P12 (see e.g. 9 ) to move. The movable member 42 is rotatable relative to the actuator 44 about the axis of rotation A1 from the actuated position P32 to the home position P31 to move the cam follower 50 from the open position P12 (see e.g 9 ) to the closed position P11 (see e.g 8th ) to move. The movable element 42 is relative to the actuator 44 about the axis of rotation A1 between an end position P30 (see e.g 10 ) and the actuated position P32 (see e.g 9 ) rotatable. In 11 the home position P31 and the actuated position P32 are represented by the second peripheral surface 42C. The rotational position of the movable member 42 is indicated with an angle of the movable member 42 about the axis of rotation A1.

12 shows a relationship between the position of the movable member 42 and a moving speed of the second member 16. The moving speed of the second member 16 is substantially proportional to the flow volume of fluid flowing through a gap between the valve member 20 and the valve seat 21C of the valve structure 21. The clearance varies in proportion to the position of the valve element 20. The position of the valve element 20 varies in proportion to the rotational position of the movable element 42. Thus, the speed of movement of the second element 16 is substantially proportional to the rotational position of the movable element 42.

The moving speed of the second element 16 is zero while the movable element 42 is in a position between the end position P30 and the initial position P31 since the valve element 20 is in the closed position P11. The speed of movement of the second member 16 is substantially proportional to the rotational position of the movable member 42 while the movable member 42 is in a position between the home position P31 and a first intermediate position P33. The moving speed of the second member 16 is constant at a first moving speed V3 (e.g. the maximum moving speed) while the movable member 42 is in a position between the first intermediate position P33 and the actuated position P32.

As in 4 As shown, the torque diode TD of the intermediate structure 45 includes a first shaft TD1, a second shaft TD2, and an outer case TD3. The first shaft TD1 is rotatably connected to the outer housing TD3 about a first axis of rotation RA1. The second shaft TD2 is rotatably connected to the outer housing TD3 about a second axis of rotation RA2. The torque diode TD is arranged to transmit the rotation of the first shaft TD1 to the second shaft TD2. In order to protect the motor 46, the torque diode TD is arranged not to transmit the rotation of the second shaft TD2 to the first shaft TD1. The pickup gear 48D is fixed to the first shaft TD1.

In the present embodiment, the first rotation axis RA1 is parallel to the second rotation tion axis RA2. The first axis of rotation RA1 is congruent with the second axis of rotation RA2. The first axis of rotation RA1 and the second axis of rotation RA2 are parallel to the axis of rotation A1. The first axis of rotation RA1 and the second axis of rotation RA2 coincide with the axis of rotation A1. However, the first axis of rotation RA1 can be offset with respect to the second axis of rotation RA2. The first axis of rotation RA1 cannot run parallel to the second axis of rotation RA2. At least one of the first rotation axis RA1 and the second rotation axis RA2 cannot be parallel to the rotation axis A1. At least one of the first rotation axis RA1 and the second rotation axis RA2 can be offset from the rotation axis A1.

The torque diode TD includes an internal structure configured to transmit rotation of the first shaft TD1 to the second shaft TD2 but not to transmit rotation of the second shaft TD2 to the first shaft TD1. The outer case body TD31 is configured to house the internal structure of the torque diode TD. The internal structure of the torque diode TD is known from the mechanical field. Therefore, for the sake of brevity, it will not be described in detail.

As in 4 1, the driver posture changing device 12 further includes a position detector 54 and a detection object 56. The position detector 54 is configured to detect a position of the movable member 42 relative to the actuator 44. As shown in FIG. The position detector 54 is set up to detect a position of the detection object 56 relative to the actuator 44 . The detection object 56 is configured to be detected by the position detector 54 .

In the present embodiment, the detection object 56 is configured to be moved by the actuator 44 in accordance with movement of the movable member 42 . The detection object 56 includes a magnet 56A configured to generate a magnetic field. The position detector 54 includes a magnetic detector 54A configured to detect a change in magnetic field. However, the structure of the detection object 56 is not limited to the magnet 56A. The structure of the position detector 54 is not limited to the magnetic detector 54A.

The detection object 56 is configured to be rotated by the actuator 44 in accordance with movement of the movable member 42 . The position detector 54 is set up to detect a rotational position of the detection object 56 . The detection object 56 is magnetized to form a plurality of north pole parts/north pole parts and a plurality of south pole parts/south pole parts, which are alternately grouped in the circumferential direction. Namely, the detection object 56 includes such a pattern that the position detector 54 detects an amount of movement of the detection object 56 (i.e., a rotation angle of the movable member 42).

The detection object 56 is rotatably connected to the housing 49 . The detection object 56 includes a rotary shaft 56B and a gear 56C. The magnet 56A and the gear 56C are fixed to the rotary shaft 56B. Magnet 56A and gear 56C are rotatable relative to housing 49 . The gear 56C meshes with the receiving gear 48D of the gear structure 48. Thus, the detection object 56 is arranged to be rotated by the actuator 44 in accordance with the rotation of the movable member 42. The position detector 54 is configured to detect the amount of movement (e.g., angle of rotation) of the movable element 42 relative to the actuator 44, rather than an absolute position of the movable element 42 relative to the actuator 44. It is possible to determine the absolute position of the movable element 42 relative to the actuator 44 based on an initial position of the movable member 42, the amount of movement detected by the position detector 54, and a movement direction in which the motor 46 of the actuator 44 rotates.

As in 13 1, the driver posture changing device 12 further includes a controller 60. The controller 60 is configured to control the actuator 44 to change an amount of movement of the movable member 42 based on the position detected by the position detector 54. FIG. The controller 60 is configured to control the actuator 44 to change a rotational angle of the movable member 42 based on the rotational position of the movable member 42 detected by the position detector 54 .

The control device 60 is arranged to control the actuator 44 based on the position detected by the position detector 54 to move the valve element 20 via the movable element 42 so that the flow volume of the liquid is changed. The control device 60 is arranged to control the actuator 44 based on the rotational position detected by the position detector 54 to move the valve element 20 via the movable element 42 so that the flow volume of the fluid is changed. Thus, the control device 60 is set up to control the actuator 44 to a movement speed ability of the second element 16 relative to the first element 14 to change.

The controller 60 includes a processor 60P, a memory 60M, a circuit board 60C, and a system bus 60B. The processor 60P includes a central processing unit (CPU) and a storage device. The memory 60M is electrically connected to the controller 60 . The memory 60M includes read only memory (ROM) and random access memory (RAM). The ROM includes a non-transitory, computer-readable storage medium. RAM includes a transitory, computer-readable storage medium. The memory 60M includes memory areas each having an address in ROM and RAM. The controller 60 controls the memory 60M to store data in the memory areas of the memory 60M and to read data from the memory areas of the memory 60M. The processor 60P and memory 60M are electrically mounted on the circuit board 60C. Processor 60P and memory 60M are electrically connected to system bus 60B. The memory 60M (e.g. ROM) stores a program. The program is read into the controller 60 and the configuration and/or algorithm of the controller 60 is executed.

The control device 60 includes a motor driver 60D. The motor driver 60D is electrically mounted on the circuit board 60C. Motor 46 is electrically connected to position detector 54 and motor driver 60D via circuit board 60C. Motor driver 60D is configured to control motor 46 based on control signal CS and the rotational position detected by position detector 54 .

In the present embodiment, the operating device 13 includes a user interface 13A. The user interface 13A is set up to receive the user input U . The user interface 13A includes an electrical switch SW configured to be activated in response to the user input U . For example, user interface 13A includes a push button switch. However, the user interface 13A may also include other user interfaces.

The operating device 13 includes a signal control device 62. The signal control device 62 is set up to generate the control signal CS in response to the user input U. The signal control device 62 is set up to generate the control signal CS when the electrical switch SW is actuated. The signal controller 62 includes a processor 62P, a memory 62M, a circuit board 62C, and a bus 62B. Processor 62P and memory 62M are electrically mounted on circuit board 62C. The processor 62P includes a CPU and a storage device. Memory 62M is electrically connected to processor 62P. The memory 62M includes a ROM and a RAM. The memory 62M includes memory areas each having an address in the ROM and in the RAM. The processor 62P controls the memory 62M to store data in the memory areas of the memory 62M and reads data from the memory areas of the memory 62M. Circuit board 62C and user interface 13A are electrically connected to bus 62B. User interface 13A is electrically connected to processor 62P and memory 62M via bus 62B and circuit board 62C. The circuit board 60C is fixed to the housing 49 (see e.g. 4 ). The memory 62M (e.g. ROM) stores a program. The program is loaded into processor 62P and thereby the configuration and/or algorithm of signal controller 62 is established.

The driver posture changing device 12 further includes a notification device/information device 66 . The notification device 66 is configured to notify a user of information/s related to the driver posture changing device 12 . The reporting device 66 is designed to be electrically connected to the control device 60 . The annunciator 66 is electrically mounted on the circuit board 60C. The information related to the driver posture changing device 12 includes, for example, a state (e.g., mode) of the control device 60 and a state (e.g., a remaining level) of an electric power source. In a case where the driver posture changing device 12 includes a wireless communicator, examples of the information may include a state (e.g., a communication state or a mode of the wireless communicator) of the wireless communicator.

In the present embodiment, the notification device 66 includes a light emitting unit configured to emit light indicating the information regarding the driver posture changing device 12 . The light emitting unit includes a light emitting diode (LED). However, the annunciator 66 may include other devices instead of or in addition to the light emitting unit.

The control system 10 includes an electric power source PS3 and an electric wiring structure WS. The electric power source PS3 is set up to supply the driver's posture changing device 12 and the operating device 13 with electric power via the electric line structure WS to supply shear energy. The electric power source PS3 includes, for example, a primary battery and a secondary battery.

The driver posture changing device 12 includes a wired communicator WD1 and a connection port CP1. The wired communicator WD 1 is configured to communicate with other wired communicators via a wired communication channel. The connection port CP1 is configured to be connected to an electric cable EC1 included in the electric wiring structure WS. The connection port CP1 is configured to receive electric power from the electric power source PS3 via the electric cable EC1.

The operating device 13 includes an additional wired communicator WD2 and an additional connection port CP2. The additional wired communicator WD2 is configured to communicate with other wired communicators via a wired communication channel. The additional terminal CP2 is configured to be electrically connected to an additional electric wire EC2 included in the electric wiring structure WS. The wired communicator WD1 is arranged to communicate with the additional wired communicator WD2 via the wired communication channel formed by the electrical cables EC1 and EC2. The additional port CP2 is configured to receive electrical energy from the electrical energy source PS3 via the additional electrical cable EC2.

The wired communicator WD1 and the additional wired communicator WD2 are arranged to communicate with each other using power line communication technology. The electrical wiring structure WS includes a ground line and a power line, respectively, which are detachably connected to a serial bus formed by communication interfaces. The driver's posture changing device 12 and the operating device 13 are supplied with power via the power line. In the present embodiment, the driver posture changing device 12 and the operating device 13 can communicate with each other via the power line by using the power line communication technique.

Powerline communication (PLC) transmits data on a line that is also used for electrical power transmission or electrical power distribution to electrical components. The PLC uses unique identification information, such as a unique identifier associated with each driver posture changing device 12 and the operating device 13 . On the basis of the unique identification information, each of the wired communicators WD1 and the additional wired communicators WD2 can recognize the control signals required for itself among the control signals transmitted via the electrical line structure WS contained therein.

The control device 60 is set up to generate an opening command based on the control signal CS and additional information. The motor driver 60D is configured to control the motor 46 to move the valve element 20 from the closed position P11 to the open position P12 in response to the open command. The control device 60 is set up to generate a closing command based on the control signal CS and additional information. The motor driver 60D is configured to control the motor 46 to move the valve element 20 from the open position P12 to the closed position P11 in response to the close command.

As in 3 1, the driver posture changing device 12 for the human-powered vehicle 2 includes a detector 70. The detector 70 is configured to detect position information indicative of a position of the second element 16 relative to the first element 14. FIG. The detector 70 is set up to detect an absolute position of the second element 16 in relation to the first element 14 . The control device 60 is set up to store the position information detected by the detector 70 . The control device 60 is set up to store the absolute position detected by the detector 70 . The detector 70 is set up to periodically acquire the position information indicating the absolute position of the second element 16 relative to the first element 14 as the current position CP. The control device 60 is set up to periodically update the position information, which indicates the absolute position of the second element 16 relative to the first element 14, as the current position CP.

As in 1 As shown, the driver posture changing device 12 further includes a position detection object 72. The detector 70 is configured to detect the position detection object 72 and obtain the position information. The detector 70 includes a non-contact detector configured to detect the position detection object 72 to obtain the position information without touching the position detection object 72 .

As in 3 As can be seen, the detector 70 is provided on at least one of the first element 14 and the second element 16 . The position detection object 72 is provided on at least one of the first member 14 and the second member 16 . In the present embodiment, the detector 70 is provided on the first element 14 . The position detection object 72 is provided for the second element 16 . The position detection object 72 is provided on an outer peripheral surface of the second member 16 . However, the detector 70 and the position detection object 72 may be provided at other portions of the driver posture changing device 12 . Detector 70 may also include other detectors such as a touch detector.

The detector 70 includes an optical sensor. In the present embodiment, the detector 70 includes a light emitter 70A and a light receiver 70B. The light emitter 70A is set up to emit light to the second element 16 . For example, the light emitter 70A includes a laser unit configured to emit laser light. The light receiver 70B is configured to receive light reflected from the position detection object 72 . The light receiver 70B is configured to periodically generate image data based on the light reflected from the position detection object 72 . The light receiver 70B is arranged to periodically compare image data to obtain the moving distance and moving direction of the second element 16 per unit time. For example, the light receiver 70B includes an image sensor and an image processor. The image sensor is set up to convert light into signals. The image processor is set up to convert the signals from the image sensor into image data and to compare image data in order to obtain the moving distance and the moving direction of the second element 16 per unit time. Examples of the image sensor include a CMOS (Complementary Metal Oxide Semiconductor) image sensor and a CCD (Charge Coupled Device) image sensor. The controller 60 is configured to periodically receive the moving distance and moving direction from the light receiver 70B.

For example, the position detection object 72 includes a detection pattern so that the detector 70 detects the position information. In the present embodiment, the detection pattern of the position detection object 72 includes a reflective part and an anechoic part. The anechoic portion has a lower reflection ratio than the anechoic portion. The reflective part and the anechoic part form the detection pattern so that the detector 70 detects the position information indicating the absolute position of the second element 16 relative to the first element 14 .

The driver posture changing device 12 further includes an additional circuit board 74 and an additional system bus 76. The additional circuit board 74 is a separate element from the circuit board 60C of the control device 60. FIG. The circuit board 60C of the control device 60 is electrically connected to the additional circuit board 74 . The driver posture changing device 12 includes an intermediate wiring structure 78 . The circuit board 60</b>C of the control device 60 is electrically connected to the additional circuit board 74 via the intermediate wiring structure 78 .

As in 1 As can be seen, the intermediate wiring structure 78 extends in the longitudinal direction D1. As in 4 As can be seen, the first member 14 includes a groove 14H extending in the longitudinal direction D1. The intermediate wiring structure 78 is provided in the slot 14H.

As in 2 As can be seen, the range of motion MR includes a plurality of stop positions SP1 to SP11 in which the controller 60 is configured to control the actuator 44 to stop the second member 16 relative to the first member 14 . The controller 60 is configured to control the actuator 44 to stop the second member 16 relative to the first member 14 when the second member 16 reaches one of the plurality of stop positions SP1 to SP11. The stop positions SP1 to SP11 are grouped at regular intervals in the longitudinal direction D1. The stop position SP1 is defined by the first mechanical stop ML1. The stop position SP11 is defined by the second mechanical stop ML2. The total number of stopper positions SP1 to SP11 is not limited in the present embodiment.

The control executed by the control device 60 is described below with reference to FIG 14 and 15 described.

As in 14 , the controller 60 determines whether or not the control signal CS is received (step S1). The controller 60 keeps monitoring the control signal CS when the controller 60 determines that the control signal CS is not received (step S1). The controller 60 controls the detector 70 so that it begins to acquire the position information (e.g. the absolute position of the second element 16 relative to the first element 14) when the controller 60 concludes that the control signal CS is received (steps S1 and S2).

The control device 60 determines the direction of movement of the second element 16 relative to the first element 14 based on the position information detected by the detector 70 (step S3). The control device 60 selects the closest stop position SPC from the plurality of stop positions SP1 to SP11 (step S4). The control device 60 calculates the distance DS between the current position CP and a nearest stopping position SPC, which is closest to the current position CP from among the plurality of stopping positions SP1 to SP11 (step S5).

The moving speed of the second element 16 is set to be different depending on the distance DS. The moving speed of the second element 16 is higher as the distance DS is longer. The moving speed of the second element 16 is slower as the distance DS is shorter.

Specifically, the controller 60 determines whether the distance DS is shorter than a first reference distance DS1 (step S6). The control device 60 controls the actuator 44 to move the movable element 42 to the first intermediate position P33 (see e.g 12 ) when the controller 60 determines that the distance DS is shorter than the first reference distance DS1 (steps S6 and S7). Thus, the moving speed of the second element 16 is set to the first moving speed V3 (see e.g 12 ).

The controller 60 determines whether the distance DS is shorter than a second reference distance DS2 when the controller 60 determines that the distance DS is not shorter than the first reference distance DS1 (steps S6 and S8). The second reference distance DS2 is shorter than the first reference distance DS1. The control device 60 controls the actuator 44 to move the movable element 42 to a second intermediate position P34 (see e.g 12 ) when the controller 60 determines that the distance DS is shorter than the second reference distance DS2 (steps S8 and S9). Thus, the moving speed of the second member 16 is set to a second moving speed V4 lower than the first moving speed V3. As in 12 As can be seen, the second intermediate position P34 is closer to the home position P31 than the first intermediate position P33.

As in 14 As can be seen, the control device 60 controls the actuator 44 to move the mobile element 42 to a third intermediate position P35 (see e.g 12 ) when the controller 60 determines that the distance DS is not shorter than the second reference distance DS2 (steps S8 and S10). Thus, the moving speed of the second member 16 is set to a third moving speed V5 lower than the second moving speed V4. As in 12 As can be seen, the third intermediate position P35 is closer to the home position P31 than the second intermediate position P34.

As in 15 , the controller 60 determines whether the current position CP is one of the stop positions SP1 to SP11 (step S11). The process returns to step S3 when the controller 60 determines that the current position CP is not one of the stop positions SP1 to SP11 (step S11). Steps S3 to S10 are repeatedly executed until the controller 60 concludes that the current position CP is one of the stop positions SP1 to SP11.

The controller 60 controls the actuator 44 to move the movable member 42 to the home position P31 when the controller 60 determines that the current position CP is one of the stop positions SP1 to SP11 (steps S11 and S12). In the present embodiment, the controller 60 controls the actuator 44 to move the movable member 42 beyond the home position P31 (see, e.g 12 ) to a temporary position P36 (see e.g 12 ) to move (step S12A). In this way, the valve element 20 closes the passage PW and stops the movement of the second element 16 relative to the first element 14.

As in 12 As can be seen, the temporary position P36 is closer to the ending position P30 than to the starting position P31. As in 10 As shown, a clearance is provided between the cam surface 42A of the movable member 42 and the cam follower 50 in a state where the movable member 42 is at a position between the end position P30 and the initial position P31. Thus, the load exerted on the actuator 44 when the movable element 42 is moved between the end position P30 and the initial position P31 is less than the load exerted on the actuator 44 when the actuator 44 moves the movable element 42 between the initial position P31 and the actuated position P32 moves.

The controller 60 is configured to obtain the clearance provided between the cam surface 42A of the movable member 42 and the cam follower 50 using the following procedure. For example, the controller 60 is configured to obtain the game by detecting a change in the moving speed of the movable member 42 . The controller 60 is configured to obtain the backlash by detecting a change in the load on the actuator 44 . The controller 60 is on directed to obtain the backlash by comparing the rotation angle of the movable member 42 with a timing when the state of the driver's posture changing device 12 is changed to the setting state. The controller 60 is configured to obtain the clearance by calculating a difference between a maximum lift of the valve element 20 and a maximum lift of the movable element 42 . However, the method of determining the game is not limited to the above methods.

As in 15 As seen, the controller 60 controls the actuator 44 to move the movable member 42 from the temporary position P36 toward the operated position P32 (step S12B). The actuator 44 moves the movable member 42 without moving the cam follower 50 and the valve member 20 until the cam surface 42A of the movable member 42 comes into contact with the cam follower 50 (see e.g 8th and 10 ). The actuator 44 moves the movable member 42, the cam follower 50 and the valve member 20 after the cam surface 42A of the movable member 42 comes into contact with the cam follower 50. Thus, when the cam surface 42A of the movable member 42 comes into contact with the cam follower 50, the load applied to the actuator 44 increases. The moving speed (e.g. rotational speed) of the movable member 42 decreases when the cam surface 42A of the movable member 42 comes into contact with the cam follower 50 . Thus, the controller 60 can determine a contact position where the cam surface 42A of the movable member 42 comes into contact with the cam follower 50 based on a change in the load of the actuator 44 or a change in the moving speed of the movable member 42 ( Step S12C).

The controller 60 controls the actuator 44 to stop the movable member 42 when the controller 60 detects the touching position (step S12D). In the present embodiment, the controller 60 controls the actuator 44 to stop the movable member 42 when the controller 60 determines that a change in the rotational position of the movable member 42 per unit time detected by the position detector 54 is less than a predetermined threshold. The controller 60 stores the touch position in the memory 60M as a home position P31 (step S12E).

The controller 60 calculates and stores the temporary position P36 (step S12F). In the present embodiment, the controller 60 subtracts a predetermined angle from the touch position (i.e., the updated initial position P31) to calculate the temporary position P36.

The controller 60 calculates and stores the first to third stopper positions P13 to P15 (step S12G). In the present embodiment, the controller 60 adds a first predetermined angle to the touch position (i.e., the updated home position P31) to calculate the first intermediate position P33. The controller 60 adds a second predetermined angle to the touch position (i.e., the updated initial position P31) to calculate the second intermediate position P34. The controller 60 adds a third predetermined angle to the touch position (i.e., the updated initial position P31) to calculate the third intermediate position P35. The controller 60 stores the first to third intermediate positions P33 to P35. The process returns to step S1.

As described above, the controller 60 is configured to update the home position P31, the first to third intermediate positions P33 to P35, and the temporary position P36. In this way, it is possible to improve the accuracy of the position of the valve element 20 even when the position detector 54 detects not the absolute position of the movable element 42 but the amount of movement of the movable element 42.

In the present embodiment, the moving speed of the second member 16 is set differently depending on the distance DS defined between the current position CP and the closest stop position SPC. The controller 60 is configured to control the actuator 44 to stop the movable member 42 at one of the first through third intermediate positions P33 through P35 depending on the distance DS. However, the speed of movement of the second element 16 can be constant regardless of the distance DS, if necessary and/or desired. The intermediate positions of the movable member 42 are not limited to the first to third intermediate positions P33 to P35. For example, the control device 60 can be set up to stop the movable element 42 in the first intermediate position P33 in the setting state of the hydraulic structure 18 .

In the present embodiment, the controller 60 is configured to set the home position P31, the first to third intermediate positions to update NEN P33 to P35 and the temporary position P36. However, the control device 60 may be configured so that at least one of the home position P31, the first to third intermediate positions P33 to P35, and the temporary position P36 is not updated.

In the present embodiment, the structure of the rider's posture changing device 12 is applied to the adjustable seat post. However, the structure of the driver's posture changing device 12 can also be applied to other devices such as e.g. B. a suspension, can be applied if necessary and / or desired. As for example in 16 As can be seen, a driver posture changing device 212 comprises the first element 14, the second element 16, the hydraulic structure 18, the movable element 42, the actuator 44, the intermediate structure 45, the control device 60, the detector 70, the connection port CP1 and the information device 66.

The driver posture changing device 212 includes a height adjustment structure 264. The height adjustment structure 264 is configured to change a relative position between the first member 14 and the second member 16 in the longitudinal direction D1. The actuator 44 is configured to operate the height adjustment structure 264 to change the relative position between the first member 14 and the second member 16 in the longitudinal direction D1.

In the present embodiment, the position detector 54 is configured to detect the amount of movement of the movable member 42 relative to the actuator 44 . However, the position detector 54 is configured to detect an absolute position of the moveable element 42 relative to the actuator 44 if needed and/or desired.

In the present embodiment, the detector 70 is set up to detect the absolute position of the second element 16 relative to the first element 14 . However, the detector 70 may be configured to detect an amount of movement of the second member 16 relative to the first member 14 rather than the absolute position of the second member 16 if needed and/or desired.

In the present embodiment, the driver posture changing device 12 is configured to communicate with the operating device 13 via the wired communication channel. However, the driver posture changing device 12 may be configured to communicate with the operating device 13 via a wireless communication channel instead of or in addition to the wired communication channel.

As in 17 For example, as shown, the driver posture changing device 12 may include a wireless communicator WC1. The wireless communicator WC1 is configured to wirelessly communicate with other wireless communicators. The operating device 13 includes an additional wireless communicator WC2 configured to wirelessly communicate with other wireless communicators. The control device 60 is configured to be connected to the wireless communicator WC1 to wirelessly communicate with the additional wireless communicator WC2. The signal control device 62 is configured to be connected to the additional wireless communicator WC2 to wirelessly communicate with the wireless communicator WC1. The additional wireless communicator WC2 is set up to transmit the control signal CS generated by the signal control device 62 via a wireless communication channel. The wireless communicator WC1 is configured to receive the control signal CS from the additional wireless communicator WC2 via the wireless communication channel.

In a case where the driver posture changing device 12 is configured to communicate with the operating device 13 via the wireless communication channel, the driver posture changing device 12 includes an electric power source PS1. The electric power source PS<b>1 is configured to supply electric power to the driver's posture changing device 12 . The electric power source PS1 is arranged to be electrically connected to the actuator 44, the controller 60, the annunciator 66, the wireless communicator WC1, and the detector 70. FIG. The electric power source PS1 is arranged to supply the actuator 44, the controller 60, the annunciator 66, the wireless communicator WC1 and the detector 70 with electric power.

The operating device 13 includes an electric power source PS2. The electric power source PS2 is configured to supply electric power to the signal control device 62 and the additional wireless communicator WC2. The electric power source PS2 is configured to be electrically connected to the signal controller 62 and the additional wireless communicator WC2.

If the wired communicator WD1 with the additional wired communicator WD2 via the electrical line structure WS elec ry connected, the control device 60 is set up to receive the control signal CS from the operating device 13 via the electric line structure WS and the wired communicator WD1 without the wireless communicator WC1. When the wired communicator WD1 is not electrically connected to the additional wired communicator WD2 via the electrical wiring structure WS, the control device 60 is configured to wirelessly receive the control signal CS from the operating device 13 via the wireless communicator WC1.

The driver posture changing device 12 is configured to communicate with the operating device 13 via the wireless communication channel and the wired communication channel. The driver posture changing device 12 is configured so that one of the wireless communication channel and the wired communication channel can be used in preference to the other of the wireless communication channel and the wired communication channel. However, one of the wireless communicator WC1 and the wired communicator WD1 may be omitted from the driver posture changing device 12 if necessary and/or desired.

As used herein, the term "comprising" and its derivatives, as used herein, are open-ended terms specifying the presence of the noted features, elements, components, groups, integers, and/or steps, but the presence other unspecified features, elements, components, groups, integers and/or steps. This concept also applies to words with similar meanings, such as the terms "have", "includes" and their derivatives.

The terms "member", "section", "portion", "part", "element", "body" and "structure" when used in the singular can have the dual meaning of a single part or a plurality of parts .

The ordinal numbers mentioned in the present application, such as “first” and “second”, are merely identifiers, but have no further meaning, for example a specific order or the like. Furthermore, for example, the term "first element" itself does not imply the existence of a "second element", and the term "second element" itself does not imply the existence of a "first element".

The term "pair" as used herein may include the configuration in which the pair of members have different shapes or structures from each other, in addition to the configuration in which the pair of members have like shapes or structures.

The terms "a" (or "an"), "one or more" and "at least one" may be used interchangeably herein.

The phrase "at least one" as used in this disclosure means "one or more" of a desired selection. For example, the phrase "at least one of," as used in this disclosure, means "only a single choice" or "both of two choices" when the number of choices is two. For example, the phrase "at least one of," as used in this disclosure, means "only a single choice" or "any combination of equal to or more than two choices" when the number of choices is equal to or greater than three. For example, the phrase "at least one of A and B" includes (1) A alone, (2) B alone, and (3) both A and B. The phrase "at least one of A, B, and C" includes (1) A alone, (2) B alone, (3) C alone, (4) both A and B, (5) both B and C, (6) both A and C, and (7) all of A, B and C. In other words, the phrase "at least one of A and B" in this disclosure does not mean "at least one of A and at least one of B."

Finally, as used herein, terms such as "substantially," "about," and "approximately" mean a reasonable degree of departure from the modified term such that the end result is not materially altered. All numerical values described in the present application can be construed as including terms such as "substantially", "approximately" and "approximately".

Of course, numerous modifications and variations of the present invention are possible in light of the above teachings. It is therefore to be understood that within the scope of the appended claims, the invention may be practiced otherwise than as specifically described.

Reference List

(12)

Driver Posture Changing Device

(2)

human-powered vehicle

(42)

moving element

(44)

actuator

(45)

intermediate structure

(TD)

torque diode

(46)

engine

(48)

gear structure

(50)

cam follower

(42A)

cam surface

(54)

position detector

(72)

detection object

(56A)

magnet

(54A)

magnetic detector

(60)

control device

(14)

first item

(16)

second element

(8th)

hydraulic structure

(C1)

first chamber

(C2)

second chamber

(20)

valve element

(MS)

saddle mounting structure

Claims (17)

A driver posture changing device (12) for a human-powered vehicle (2), comprising: a movable element (42); an actuator (44) configured to generate actuation force to move the movable member (42) relative to the actuator (44); and an intermediate structure (45) arranged to transmit the actuating force from the actuator (44) to the movable element (42) to move the movable element (42) relative to the actuator (44), the intermediate structure ( 45) is set up to limit a/the transmission of a force from the movable element (42) via the intermediate structure (45) to the actuator (44). Driver posture changing device (12). claim 1 wherein the intermediate structure (45) includes a torque diode (TD), and the actuator (44) is arranged to be coupled to the movable element (42) via the torque diode (TD). Driver posture changing device (12). claim 1 or 2 , wherein the actuator (44) is arranged to generate an operating torque to rotate the movable element (42) relative to the actuator (44) about an axis of rotation, the intermediate structure (45) being arranged to generate the operating torque from the actuator (44) to the movable element (42) to rotate the movable element (42) relative to the actuator (44) about the axis of rotation, and the intermediate structure (45) is arranged to a / the transmission of rotational force from to limit the movable element (42) via the intermediate structure (45) to the actuator (44). Driver posture changing device (12) according to one of Claims 1 until 3 wherein the actuator (44) includes a motor (46) configured to generate the actuating force. Driver posture changing device (12). claim 4 wherein the actuator (44) includes a gear structure (48) arranged to transmit the actuating force from the motor (46) to the intermediate structure (45). Driver posture changing device (12) according to one of Claims 1 until 5 A cam follower (50) movable relative to the actuator (44), the movable member (42) including a cam surface (42A) configured to move the cam follower (50) relative to the actuator (44). Driver posture changing device (12) according to one of Claims 1 until 6 , which further comprises a position detector (54) which is arranged to detect a position of the movable element (42) relative to the actuator (44). Driver posture changing device (12). claim 7 , further comprising a detection object (72) arranged to be detected by the position detector (54). Driver posture changing device (12). claim 8 , wherein the detection object (72) is arranged to be moved by the actuator (44) in accordance with a movement of the movable element (42). Driver posture changing device (12). claim 8 or 9 , wherein the detection object (72) includes a magnet (56A) configured to generate a magnetic field, and the position detector (54) includes a magnetic detector (54A) configured to detect a change in the magnetic field. Driver posture changing device (12) according to one of Claims 8 until 10 , where that Detection object (72) is arranged to be rotated by the actuator (44) in accordance with movement of the movable element (42). Driver posture changing device (12). claim 11 , wherein the position detector (54) is set up to detect a rotational position of the detection object (72). Driver posture changing device (12) according to one of Claims 7 until 12 , further comprising a controller (60) configured to control the actuator (44) to change an amount of movement of the movable member (42) based on the position detected by the position detector (54). Driver posture changing device (12) according to one of Claims 1 until 7 further comprising a first member (14) extending in a longitudinal direction; a second member (16) arranged to be longitudinally movable relative to the first member (14); and a hydraulic structure (8) including a first chamber (C1), a second chamber (C2) arranged to be in fluid communication with the first chamber (C1), and a valve member (20) relative to at least one of the first member (14) and the second member (16) is movable to change the flow volume of the fluid flowing between the first chamber (C1) and the second chamber (C2), wherein the actuator (44) is arranged, to move the valve element (20) over the movable element (42) to change the flow volume of the fluid. Driver posture changing device (12). Claim 14 , wherein the actuator (44) is set up to move the valve element (20) via the movable element (42) in order to change a state of the hydraulic structure (8) between a locking state in which the first element (14) and the second member (16) are prevented from longitudinally moving relative to each other, and an adjusted condition in which the first member (14) and the second member (16) are longitudinally movable relative to each other. Driver posture changing device (12). Claim 14 or 15 which further comprises a position detector (54) which is arranged to detect a position of the movable element (42) relative to the actuator (44); a detection object (72) arranged to be detected by the position detector (54), and a controller (60) arranged to control the actuator (44) based on a moving amount of the movable member (42). based on the position detected by the position detector (54), the control device (60) being arranged to control the actuator (44) based on the position detected by the position detector (54) in order to move the valve element (20) via the movable To move element (42) so that the flow volume of the fluid is changed. Driver posture changing device (12) according to one of Claims 14 until 16 , further comprising a saddle mounting structure (MS) configured to fixedly mount a saddle to one of the first member (14) and the second member (16).

Images