466results about "Vehicle cranks" patented technology

Improvements in a bicycle pedal that uses a compression spring placed along the spindle of the pedal to maintain position of the pedal on the spindle and allow for tolerance and assembly variation. The spring ensures proper loading on the bearings and allows for tolerance build-up of the pedal and bearings to eliminate binding. The play is eliminated as the spring biases out the maximum and minimum tolerance of the parts used in the pedal. The design uses an elastomeric seal at the crank connection side. The seal allows the shaft to be pressed into the pedal and through one or a plurality of bearings where it can be secured with the fastener under the spring tension.

An electrical device of a rotational device for a human-powered vehicle comprises an electronic controller. The electronic controller is configured to operate with first power consumption in a first state and configured to operate with second power consumption lower than the first power consumption in a second state. The electronic controller is configured to change a state of the electrical device from the first state to the second state in a case where a first sleep condition is met for a first sleep determination time in the first state. The electronic controller is configured to change the state of the electrical device from the first state to the second state in a case where a second sleep condition is met for a second sleep determination time in the first state. The second sleep determination time is shorter than the first sleep determination time.

An electrical device of a rotational device for a human-powered vehicle comprises a wireless communicator and an electronic controller. The wireless communicator is configured to wirelessly communicate with an additional electrical device. The electronic controller is electrically connected to the wireless communicator to wirelessly communicate with the additional electrical device via the wireless communicator. The electronic controller is configured to control the wireless communicator to execute pairing in response to a reverse rotation of the rotational device.

An electrical device for a rotational device of a human-powered vehicle comprises a housing and a force sensor. The housing includes an outer surface and an inner surface. The outer surface includes an attachment surface configured to be attached to an additional attachment surface of the rotational device with an adhesive agent. The inner surface defines an internal space. The force sensor is attached to the attachment surface and is configured to measure a force applied to the rotational device in an attachment state where the attachment surface is attached to the additional attachment surface of the rotational device.

A foot retention system including: a pedal having a pedal platform; a strap having a first base portion, a second base portion and a loop portion between base portions; and a rotary adjuster connected to said strap. The first base portion and said second base portion are retained to the pedal platform and the loop portion is vertically spaced from the pedal platform. The strap and pedal platform defines an opening to receive a user's foot and the rotary adjuster is rotatable about a rotary axis to adjust the perimeter length of the opening.

The pedal shaft assembly comprises a shaft core, a shaft sleeve, a thread sleeve and a plurality of balls, the shaft sleeve is provided with an inner cavity, the shaft core is partially arranged in the inner cavity of the shaft sleeve and rotates relatively, the shaft core is provided with the thread sleeve at an opening of the shaft sleeve, and the outer wall of the thread sleeve is provided with a connecting portion used for being connected with the shaft sleeve. The balls are arranged between the shaft core and the threaded sleeve to form an integrated rotating structure, and the balls are always kept in a track formed by matching the shaft core and the threaded sleeve in the disassembly and maintenance process of the pedal shaft. According to the pedal shaft assembly, the thread sleeve, the balls and the shaft core form an integral core shaft structure, adjusting nuts are reduced, the relative position of the shaft core does not need to be adjusted, and the assembly efficiency is high.

A bicycle includes a suspension system of the rear wheel, a crankset integral with the frame, and a hub and pinions assembly integral with the rear wheel, which are subjected to reciprocal displacement by the action of the suspension system. The crankset and the hub and pinions assembly each include at least one gear wheel engaged by the chain and a rotation shaft. Between the gear wheel and the shaft, there is operatively interposed a compensation device placed to allow a compensation angular stroke between them from a rest position corresponding to an absence of chain pull, to a compensation position, corresponding to an action of chain pull generated by the reciprocal displacement, and vice versa. The compensation device includes an adjustment system of the compensation angular stroke.

In the conventional tricycle, generally the front frame, the rear frame and the seat tube are attached to the bottom bracket that carries pedal assembly. Between the bottom bracket and the rear frame, a joint is installed such that the seat tube and the handlebar may tilt to the left or right. Thereby the rider can cancel out the unwanted centrifugal force that occurs during high speed turning and pushes him to the opposite direction of the handlebar causing a fall down accident. Between the seat tube and the rear frame is installed a tiltable angle variable mechanism. By operating a hand lever on the handlebar the rider can vary the tiltable angle of the handlebar as needed, for high speed turning or for maintaining balance at low speeds.

To provide a power transmission device for a bicycle which is suitable for a user.SOLUTION: A power transmission device 100 for a bicycle includes a first rotor 2, a pair of second rotors 3, an elastic member 4, and a stopper member 5. The pair of second rotors 3 are arranged so as to sandwich the first rotor 2 in an axial direction. The pair of second rotors 3 are removably mounted. The elastic member 4 elastically connects the first rotor 2 and the pair of second rotors 3. The stopper member 5 is arranged between the pair of second rotors 3. The first rotor 2 has opposite stopper surfaces.SELECTED DRAWING: Figure 1

Method for generating a haptic response signal on a bicycle pedal comprising the following steps: - Acquiring (S1) sensor data using a sensor; - evaluating (S2) the sensor data to generate a haptic response signal in response to the evaluation; - Transmitting (S3) one and / or more control commands to at least one haptic actuator in the pedal to emit the reaction signal.

To perform crimping operations reliably. [Solution] The crank arm rotates integrally with the first rotating body. The first rotating body has a hub portion and a flange portion. The hub portion extends axially. The flange portion extends radially outward from the hub portion. The crank arm has a mounting portion and an arm body portion. The mounting portion is attached to the hub portion. The arm body portion extends radially outward from the mounting portion. The mounting portion has a mounting body portion and a tip portion. The mounting body portion abuts the hub portion in the axial direction. The tip portion extends axially from the mounting body portion. The tip portion has an outer diameter smaller than the outer diameter of the mounting body portion. The tip portion is crimped to the hub portion. The mounting body portion has an outer diameter larger than the outer diameter of the hub portion.

A pedal assembly (55) for a bicycle (1). The pedal assembly includes a pedal shaft (90) configured to be mounted to the crank arm (29), a pedal body (91) rotatably mounted to the pedal shaft (90) about a pedal rotational center axis (X2) defining a pedal axial direction and a pedal radial direction, and a generator. The generator (65) includes a coil unit (73) provided to the pedal shaft (90) and a magnet unit (74) provided to the pedal body (91). Relative rotation between the coil unit (73) and the magnet unit (74) during stepping on the pedal is configured to generate electric power supplied to an electric component (75) provided to at least one of the crank arm (29) and the pedal shaft (90).

The present invention relates to a crank set, for example for propelling a bicycle or driving a similar pedal powered machine or vehicle. A crank set comprises a left and right crank arm. Each crank arm has a piston- in-cylinder whose stroke reciprocates to lengthen or shorten the respective crank arm, thereby enabling a torque, applied to a pedal connected to an end of each crank arm, to be varied. A fluid pathway connects the two pistons via a flow control valve, whereby in use fluid urges a piston to lengthen a first crank arm, during part of its downwards stroke, and to shorten the length of a second crank arm, during part of its upwards stroke. An advantage of the flow control valve is that it enables a user to optimise crank length depending on the terrain or slope.

Electrical device (12) for a muscle-powered vehicle (2), comprising: a printed circuit board (30C; 230C; 330C) containing a first electrically conductive body (30E; 230E; 330E); and a clamping element (72; 372) configured to be at least partially positioned between the printed circuit board (30C; 230C; 330C) and an additional device in a mounting state in which the printed circuit board (30C; 230C; 330C) is attached to the additional device, the terminal element (72; 372) includes a second electrically conductive body (72A; 372A) which is designed to elastically maintain contact between the first electrically conductive body (30E; 230E; 330E) and the second electrically conductive body (72A; 372A) when fastened.

The utility model relates to the technical field of buggy, and provides a wheel assembly for a buggy and the buggy. The pedal assembly is connected to the wheel body; the first clamping piece is connected to the wheel body; the second clamping piece is connected to the wheel body and movably connected with the first clamping piece in a clamped mode. Compared with the prior art, the wheel has the advantages that the first clamping piece and the second clamping piece which is movably clamped with the first clamping piece are arranged on the wheel body, and when the first clamping piece is located at the locking position, the first clamping piece is moved to the unlocking position by applying force to the first clamping piece; the pedal assembly is switched from the locking state to the free state, so that when the buggy is pushed and feet of a child are placed on the pedal assembly, the feet of the child cannot move due to rotation of the pedal assembly, and the child can have a full rest.

The invention relates to a bicycle component provided with an electronic device. The invention relates to a method of operating an electronic device associated with a bicycle component and comprising a processor and a wake-up unit, the method comprising the following steps, which can be executed by the processor of the electronic device: - operating alternately in a standby mode and in a running mode, - upon reception of a wake-up signal from the wake-up unit, switching from the standby mode to the running mode under predetermined wake-up conditions, and - before switching from the running mode to the standby mode, modifying the configuration of the wake-up unit by updating the predetermined wake-up conditions, so that a subsequent wake-up signal is sent to the processor under the updated wake-up conditions. The invention also relates to a related bicycle component.

Positioning kit for a bicycle shoe plate (10), comprising: a first section (22) with a first shoe attachment section (30) configured to be detachably coupled to a first bicycle shoe (40), wherein the first section (22) is configured to adjustably position a first shoe plate (42) on a first sole (44) of the first bicycle shoe (40);and a second section (24) with a second shoe attachment section (32) configured to be detachably coupled to a second cycling shoe (50) different from the first cycling shoe (40), wherein the second section (24) is configured to adjustably position a second cleat (52) on a second sole (54) of the second cycling shoe (50), wherein the first section (22) is arranged at a first end of the positioning kit for a cycling cleat (10) and the second section (24) is arranged at a second end of the positioning kit for a cycling cleat (10), the second end being arranged opposite the first end in a longitudinal direction of the positioning kit for a cycling cleat (10).

Modules provide the ability of a cleat that couples a shoe to a bicycle pedal to be decoupled via natural lifting motion of the foot upon the occurrence of a specific circumstance such as a tilt of the bicycle indicative of an imminent crash. This allows the rider to use their foot that is no longer coupled to the pedal to potentially eliminate or lessen the crash and / or dismount the bicycle without needing to first perform a cleat release maneuver such as rotating the rear of the foot outward. Shoes may be configured with the module to allow the cleat to decouple from the shoe via the natural lifting motion of the foot in the specific circumstance. Pedals may be configured with the module to allow the cleat to decouple from the pedal via the natural lifting motion of the foot in the specific circumstance.

A rotational force transmission element (1) for steering a bicycle (10), in particular a stem (6) or a crank arm (7, 8), comprising a centrally hollow, elongated body (2) situated between two extreme attachment zones (4), one with a steering interface element, in particular a handlebar or a pedal, the other with the corresponding part of the bicycle, the volumetric void ratio being greater than or equal to 25%, and more preferably greater than or equal to 30%, and even more preferably greater than or equal to 35%. FIGURE 2

The present invention relates to a crankset system comprising a first crankset part (20) and a second crankset part (22), wherein the first crankset part (20) and the second crankset part (22) can be inserted into one another for connection. This forms a crankset for a bicycle. The first element (20) has a cutting tooth (26) which, upon insertion, cuts a corresponding tooth profile (32) into the second element (22) in a cutting direction (34). The invention also relates to a crankset.

The present invention relates to an arrangement for detecting a bearing force of a bottom bracket of a bicycle, comprising: a bottom bracket, a bearing receptacle, a bearing force sensor, and a detection unit, wherein the bearing receptacle has a mounting area, a measuring area, and a bearing area, wherein the mounting area is configured to attach the bearing receptacle to a housing-mounted component, wherein the bearing area surrounds the bottom bracket in an annular manner, wherein the measuring area has two webs connecting the mounting area and the bearing area, wherein the bearing force sensor is configured to detect a deformation of at least one web, and wherein the detection unit is configured to detect a bearing force at the bottom bracket based on the deformation of the at least one web detected by the bearing force sensor.

The invention relates to a clamping assembly of a clipless pedal, comprising: a pedal body (10) having a mounting surface (11) and a first shoulder section (12) facing away from the mounting surface (11); a first clamping element (20) having a transverse section (21) detachably attached to the mounting surface (11) and a longitudinal section (22) extending transversely from the transverse section (21), the longitudinal section (22) forming a second shoulder section (221) that abuts the first shoulder section (12); a second clamping element (30); an axle (40) connecting the longitudinal section (22) and the second clamping element (30) so that the second clamping element (30) can rotate relative to the first clamping element (20); and a preloading mechanism (50) located between the first clamping element (20) and the second clamping element (30) that preloads the second clamping element (30).

The utility model relates to the technical field of bicycle chain wheel cranks, and discloses a bicycle chain wheel crank with a fine adjustment structure, which comprises a chain wheel, a mounting sleeve penetrates through the middle of the chain wheel and is in interference fit connection with the chain wheel, and mounting parts are symmetrically and slidably connected to the front side and the rear side of the interior of the mounting sleeve. And convex pieces are symmetrically arranged at the top and the bottom of the mounting sleeve, first threaded holes are formed in the convex pieces, cranks are arranged on the opposite sides of the two mounting pieces, convex blocks are symmetrically arranged at the tops and the bottoms of the mounting pieces, and rotating shafts penetrate through the convex blocks and are rotationally connected with the convex blocks. The rotating shaft is rotated to drive the first threaded shaft to rotate, the position of the first threaded shaft in the first threaded hole can be adjusted, the position of the installation piece in the installation sleeve can be adjusted, the distance between the two cranks can be conveniently adjusted, the opening distance of the two riding feet of a rider can be finely adjusted according to personal needs, and the riding comfort of the rider is improved. And the use flexibility is improved.

A reduction warning procedure includes the steps of providing a bicycle with a crankshaft, detecting a rotational speed of the crankshaft, determining whether the rotational speed of the crankshaft is reduced, returning to the step of detecting the rotational speed, and providing an alarm if the rotational speed of the crankshaft is reduced.

The utility model relates to the technical field of crank connecting structures, and discloses a motorcycle crank connecting structure which comprises a right crank and a left crank, the right crank and the left crank are mutually symmetrical, the opposite sides of the right crank and the left crank are provided with the same crank pin shaft, and the outer wall of the middle of the crank pin shaft is sleeved with a transmission connecting rod. And reinforcing rods which are symmetrically arranged are fixedly connected to the outer wall of one side of the transmission connecting rod. The reinforcing rods which are symmetrically arranged are fixedly installed on the transmission connecting rod, the annular grooves are formed in the two second bearings, the connecting blocks are connected to the inner walls of the annular grooves in a sliding mode, and the two reinforcing rods are fixedly connected to the two connecting blocks respectively, so that the effect of further stably supporting installation of the transmission connecting rod can be achieved; the phenomenon that the transmission connecting rod deviates left and right on the crank pin shaft is avoided, long-time stable work of the transmission connecting rod is facilitated, stable operation of the transmission connecting rod is guaranteed, and the transmission connecting rod is practical and suitable for wide application and popularization.

A mechanical system designed to convert, by means of the use of cranks or levers, the force expressed by a user into a driving torque applied to a drive shaft by converting the reciprocating motion of the cranks into a circular motion. The mechanical system of the invention makes it possible to generate effective torque on the employed cranks either with a force applied simultaneously to the cranks or with a force applied alternately to the cranks, where the applied force can be a pulling force or a pushing force.

A crankset (10) comprises a fixed ring gear (12) and a moving ring gear (14) defining a main axis of rotation (x), two crank arms (16, 18) with proximal ends (16b, 18b) coupled to the ring gears (12, 14) and rotatable with respect thereto, and distal ends (16a, 18a) defining a circumference (C). The crank arms (16, 18) are rotatable at a first rotational speed (w1) in at least a first arc (A1) of the circumference (C). Additional relative rotation means (24) are configured to rotate at least one crank arm (16, 18) at a second rotational speed (w2), greater than the first (w1), in at least a second arc (A2), different from the first (A1), in such a manner that the crank arm forms with the other crank arm an obtuse angle (α) in the direction of rotation of the crank arms when the distal end (16b, 18b) of the other crank arm is at a vertical minimum point (I) of the circumference (C).

To provide a technology easily enhancing mountability of a power conversion device on a mounting object.SOLUTION: A linkage mechanism 3 that causes a first planetary gear PG1 and a second planetary gear PG2 to revolve together at the same speed in the same direction includes a carrier coupling member 31 coupling a first carrier CR1 and a second carrier CR2 so as to integrally rotate. In an axial view along an axial direction (L), a first planetary axis X2 as a rotation axis of the first planetary gear PG1 and a second planetary axis X3 as a rotation axis of the second planetary gear PG 2 are disposed on positions opposite one another across a carrier axis X1 as a rotation axis of the first carrier CR1 and the second carrier CR2 and equidistant from the carrier axis X1. A first planetary gear mechanism 21 and a second planetary gear mechanism 22 are dispose apart from each other in the axial direction L. An output member 6 is provided with an intermediate disposition part 60 disposed between the first planetary gear mechanism 21 and the second planetary gear mechanism 22 in the axial direction L.SELECTED DRAWING: Figure 1