235results about "Vehicle cranks" patented technology

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.

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 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 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 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 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).

A vehicle may include a pedal assembly, a motor assembly, and a drive unit that may be used to allow selective usage of one or both of the pedal assembly and the motor assembly to convey power to a driven wheel of the vehicle. The drive unit can include a gearbox that may enclose components which form at least part of a first power path between the pedal assembly and the driven wheel and a second power path between the motor assembly and the driven wheel. The first and second power paths can converge at a component within the gearbox. One-way bearings at points in the first and second power paths prior to the convergence of the power paths can inhibit or prevent the pedal assembly from being affected by operation of the motor assembly, and vice versa.

An external force measurement unit 4 for measuring an external force fe applied to a spindle 10 includes a load cell 5 with a support ring 61, wherein a first flap 62 and a second flap 65 are arranged on the support ring 61, wherein the second flap 65 is arranged opposite to the first flap 62 on the support ring 61, wherein each flap is arranged in a radial direction towards the outside of the support ring 61, a first strain gauge 64, which is arranged on the first flap 62, and a second strain gauge 67, which is arranged on the second flap 65, an evaluation unit 14 for measuring the resistance of the first strain gauge 64 and the resistance of the second strain gauge 67, wherein the resistance of the first strain gauge 64 is measured separately from the resistance of the second strain gauge 67, a first bearing support 6 for taking up a first bearing 7 in a first bearing seat 68, wherein the first bearing 7 is adapted to take up a rotating spindle 10, wherein the evaluation unit 14 is configured to determine the external force fe based on the resistance of the first strain gauge 64 and the resistance of the second strain gauge 67.

A bicycle pedal includes a pedal body, a force-bearing detector, and a cover plate. The pedal body has an accommodation space that is recessed. The force-bearing detector includes a bridging frame, a force-bearing beam arm, and a force sensor. A periphery of the bridging frame is fixed in the accommodation space. One end of the force-bearing beam arm is connected to the bridging frame. The force sensor is disposed on a bottom surface of the force-bearing beam arm. The cover plate is movably disposed in the accommodation space. A bottom of the cover plate is fixedly connected to a top surface of the force-bearing beam arm.

The invention relates to a motor unit for an electrically assisted bicycle, the motor unit having only one freewheeling device, and to an electrically assisted bicycle.

The utility model relates to a child tricycle with a steerable and quickly detachable seat, which comprises a frame, a front fork, a front wheel, pedals, a bottom tube, a handlebar component, a seat, a leg frame, a rear wheel, a push rod, a seat adjusting mechanism, a steering adjusting mechanism, a pedal unlocking mechanism and a clutch mechanism. The seat adjusting mechanism comprises a base, a rotary table, a first pressing switch and a second pressing switch, the base is arranged on the frame, the top of the rotary table is rotatably connected with the seat, the first pressing switch and the second pressing switch are arranged on the rotary table and penetrate through the base to extend outwards, and two positioning grooves are formed in the side wall of the upper matching cavity. According to the technical scheme, the seat of the child tricycle can be rapidly disassembled and assembled, the orientation angle of the seat can be automatically adjusted, a child can be prevented from directly facing the wind when needed, and therefore the risk of catching a cold is reduced, and parents can conveniently and directly observe the state of the child.

A pedal assembly for a pedal operated device, including: a pedal configured to receive an appendage of a user; a telescoping pedal arm; a plurality of telescoping portions; and a pedal arm retention portion that provides a predetermined resistance to the relative movement of two adjacent ones of the telescoping portions. The pedal arm retention portion has a first recess formed in one of the telescoping portions, a second recess formed in one of the telescoping portions, an engagement portion that is configured to be received in the first recess and the second recess, and a resilient portion that urges the engagement portion into one of the recesses. The plurality of telescoping portions permit the length of the pedal arm to be adjusted, and the pedal arm retention portion is configured such that the predetermined resistance is overcome by moving the pedal in the longitudinal direction.

Various embodiments of a pedal for use on a device such as a bicycle or stationary bicycle are provided. A pedal may include a pedal body member having an internal cavity. The pedal may include an axl

Described is a pedal having a pedal body having an insertion opening and a cavity which, starting from the insertion opening, extends into the pedal body. The pedal further has a pedal axle which is inserted into the pedal body through the insertion opening and extends into the pedal body along the cavity, and at least one bearing arranged on the pedal axle, which is configured to support the pedal body to be rotatable on the pedal axle. According to the invention, a securing element is provided, which is configured to support the bearing on the pedal axle in an axial direction with respect to the pedal axle, in order to secure the pedal axle against falling out from the pedal body, wherein the securing element extends from outside through the pedal body into the cavity to the bearing, and the securing element is accessible from outside.

The utility model belongs to the technical field of bicycle accessories, and particularly discloses a novel bicycle pedal which comprises a pedal body, a first bearing, a second bearing, a mandrel and a crank, an installation column is arranged in the middle of the pedal body, a through inserting groove is formed in the middle of the installation column, and a first embedding groove and a second embedding groove are formed in the two ends of the installation column respectively. The first bearing is embedded in the first embedding groove, and the second bearing is embedded in the second embedding groove; a diamond head is fixed at the end part of the mandrel; the mandrel is inserted into the second bearing, the slot and the first bearing; the crank is provided with the rhombic groove matched with the rhombic head, the rhombic head is inserted into the rhombic groove to limit the crank and the pedal body, the end, away from the rhombic head, of the mandrel is connected with the threaded rod, the mandrel is locked through the threaded rod, the rhombic head is arranged to limit the crank and the pedal body, the overall structure is simple, and later pedal assembly is facilitated.

Pedal for a pedal-powered vehicle, comprising: a body for receiving a user's foot, wherein the body comprises an upper surface for supporting the user's foot, a front surface, a rear surface, and a bottom surface; a spindle (4) centred by at least two bearings (5), to be connected to a crank of the vehicle; at least one light source (3), wherein the light source is arranged on the front surface of the body or on the rear surface of the body; a generator (1) for supplying power to each of the light emitters; an electronic circuit connected to the light sources, to a capacitor (2), and to the generator; wherein when the user rotates the pedal, the generator converts the mechanical energy from the movement into electrical energy, causing each light source to emit a beam of light; wherein the generator is a motor connected to a planetary gear (8) reducer that is actuated by the pedal spindle.

A frame connecting piece is connected with a cushioning shaft in a sleeved mode, outer layer rebounding rubber is arranged on the outer surface of a hard middle shaft of the cushioning shaft, the outer layer rebounding rubber is arranged between the hard middle shaft and the frame connecting piece, and the hard middle shaft is fixedly arranged in the frame connecting piece through a fixing cover. The connecting shaft of the cushioning shaft penetrates through the limiting hole of the fixing cover and then is connected with the fork arm connecting block, and the limiting block of the fixing cover is matched with the limiting notch of the fork arm connecting block for limiting. By adopting the innovative design of the cushioning shaft and the outer-layer rebounding rubber and combining the technical scheme that the fixing cover is ingeniously matched with the fork arm connecting block, the damping device has the advantages of being more excellent in damping effect, simpler in structure, lighter in weight and more convenient to install. The problems that in the prior art, the damping effect is not ideal, the structure is complex, the weight is heavy, and installation is difficult are solved.

The utility model discloses a centrally-mounted motor, a five-way structure of the centrally-mounted motor and a power-assisted bicycle. The five-way structure of the centrally-mounted motor comprises a five-way shaft, an output gear, a clutch sleeve and a strain sleeve, and the strain sleeve is connected to the periphery of the five-way shaft; the output gear comprises a hub part and a gear part, the gear part is located on the outer ring of the hub part, and the side, away from the gear part, of the hub part is in transmission connection with the five-way shaft. The clutch sleeve is arranged on the periphery of the five-way shaft in a sleeving mode and is in transmission connection with the hub part, the clutch sleeve is provided with a first end face facing the strain sleeve in the axial direction of the five-way shaft, and a first tooth-shaped structure is arranged on the first end face; the strain sleeve is provided with a second end face facing the first end face, and the second end face is provided with a second tooth-shaped structure. The first tooth-shaped structure and the second tooth-shaped structure can be matched to form a torque transmission mechanism used for transmitting torque. According to the jaw clutch, the clutch sleeve and the strain sleeve are matched to form the jaw clutch with the end face transmitting torque, and one-way large torque transmission between the output gear and the five-way shaft can be achieved.

The utility model discloses a centre shaft crank structure for interconversion between a scooter and a bicycle, which comprises a shaft barrel, a driving shaft, a left crank mechanism, a right crank mechanism and a foot support, anti-skidding lines can be arranged outside the foot support, and screw holes are arranged at two ends of the driving shaft. The left crank mechanism and the right crank mechanism are fixed to the left end and the right end of the driving shaft through bolts respectively to form a bicycle mode, the foot support replaces the left crank mechanism and the right crank mechanism through the same bolt connector to form a scooter mode, and a chain plate is fixed to the position, on the outer side of a shaft barrel, of the right end of the driving shaft. Through innovative modular design, a precise positioning structure and user-friendly operation optimization, the child riding device comprehensively exceeds traditional child riding equipment in functionality, safety, economical efficiency and durability, the actual pain point of parents is solved, and meanwhile safer and more flexible learning and riding experience is provided for children.

The present invention relates to a drive unit of an electric bicycle, comprising a motor, a crankshaft with a crank axle, a housing in which the motor is arranged, the housing having a first mounting area and a second mounting area, wherein the first mounting area and the second mounting area are configured for attaching the drive unit to a frame interface of the electric bicycle, wherein in a section plane through the drive unit and orthogonal to the crank axle: a first mounting axis is defined which connects the crank axle and a first center point of the first mounting area, and a second mounting axis is defined which connects the crank axle and a second center point of the second mounting area, wherein a mounting angle between the first mounting axis and the second mounting axis is greater than 30° and less than 90°.wherein each fastening area has two fastening elements, which are each arranged axially aligned.