964results about "Vehicle cranks" patented technology

A training bicycle with a removably attachable pedal unit enabling adjustment of chain slack by a simple method is provided. The detachable pedal unit is configured to enable attachable / detachable connection of a pedal crank to a bicycle body. The pedal unit includes a unit body having a unit connector for rotatably retaining and fastening to a bicycle body a pedal crank axially supporting a chain wheel. A unit receiving member fixedly installed on the bicycle body to interconnect with the unit connector. A sliding adjustment mechanism provided on the unit receiving member and the unit connector to vary and fix mutual fore-aft connection position of the unit receiving member and the unit connector in order to adjust fore-aft connection position of the bicycle detachable pedal unit relative to the bicycle body and thereby adjusting the chain tension.

A pedal crank drive having a pedal crank (12) and a chain ring (14), which can be connected to each other in a rotationally fixed manner to form a unit (10), the unit (10) having a spindle hole (16) for a bottom bracket spindle. The chain ring (14) has a first connecting contour (18) and the pedal crank (12) has a second connecting contour (20), wherein the connecting contours (18, 20) can be fitted into one another in an assembly position, and the pedal crank (12) and the chain ring (14) can be rotated relative to one another around the spindle hole (16) to a stop position in which the stop surfaces (22, 24) of the pedal crank (12) and the chain ring (14) abut against each other.

A pedal includes a pedal body, a force detection module, a rotation shaft, an insulating sleeve, electrically conductive rings, and contact elements. The pedal body has a first accommodating space and a second accommodating space. The force detection module is disposed in the first accommodating space. The rotation shaft passes through the pedal body. Annular accommodating regions and wire perforations are recessed from a surface of the rotation shaft. Transmission wires pass through the wire perforations. The insulating sleeve is sleeved on the rotation shaft. Annular insulating regions are recessed from a surface of the insulating sleeve and correspondingly cover the annular accommodating regions. The electrically conductive rings are respectively sleeved on surfaces of the annular insulating regions, and the transmission wires are correspondingly coupled to the electrically conductive rings. The contact elements abut against the electrically conductive rings, respectively.

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.

The concept described herein relates to a pedal having a pedal body, a pedal axis which extends at least partly through the pedal body, wherein the pedal body is supported to be rotatable on the pedal axis, and an adjustable rotation brake which, during rotation of the pedal body, exerts an adjustable braking force on the pedal axis in order to brake the rotation of the pedal body when compared to an unbraked rotation.

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.

The utility model relates to a centrally-mounted motor transmission system and a centrally-mounted motor, the centrally-mounted motor transmission system comprises a center shaft structure, a motor assembly and a speed reduction assembly, and the speed reduction assembly is arranged between the motor assembly and the center shaft structure; wherein an output gear is arranged on the middle shaft structure, a first clutch is arranged between the output gear and the middle shaft structure, a second clutch is arranged in the speed reduction assembly, and the first clutch is configured to transmit power to the output gear in a one-way mode from the middle shaft; the second clutch is configured to perform one-way transmission of power from the motor assembly to the middle shaft structure; in the power-assisted mode and the full-automatic mode, the motor drives the crank to rotate, so that discomfort to a rider is avoided; and the specific mounting positions of the first clutch and the second clutch are favorable for improving the compactness of the structure and improving the bearing moment, so that the running state between the clutch and the corresponding connecting structure is better.

The utility model relates to a center shaft torque sensor with a limiting function, and belongs to the field of power-assisted bicycles. The device comprises a middle shaft, a left bearing seat, a bearing, a protective sleeve, a right five-way seat, an elastic body, a needle bearing and a strain gauge, the two ends of the protective sleeve are connected with the left bearing seat and the right five-way seat respectively, the bearing is installed between the left bearing seat and the middle shaft, the needle bearing is installed between the elastic body and the middle shaft, and the strain gauge is installed between the elastic body and the middle shaft. The elastic body is located in the right five-way seat, the strain gauge is pasted on the elastic body, two ends of the elastic body are respectively a fixed end and a free end, and the elastic body is structurally characterized in that the fixed end of the elastic body is fixed with the right five-way seat, the free end of the elastic body is provided with a limiting convex rib, and the limiting convex rib and the elastic body are of an integrated structure.

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 axle having a shaft adapted to extend into the internal cavity. The pedal body member may rotate around a longitudinal axis of the axle shaft and around an axis through a shaft bearing attached to the axle shaft. The pedal may be adapted so that the user's foot can be placed on either a top surface or a bottom surface of the pedal body member.

A pedal-assisted bicycle includes a suspension system of the rear wheel in relation to the frame which allows a predetermined relative displacement between them. The crankset includes: a freewheel device operatively interposed between the drive and muscle shafts; a compensating device operatively interposed between the drive shaft and the gear wheel, The compensating device generates between the two an angular forward compensation stroke between a rest position, and a compensation position, where the forward compensation stroke is limited to a predetermined angle and is opposite to the free stroke of the freewheel device.

In one aspect, a bicycle pedal comprises a main pedal body adapted to rotatably receive an axle and defining at least one pedal platform base upon which is disposed a layer of a low-rebound elastomeric material to form a pedal platform surface. In another aspect, a bicycle pedal has a main pedal body adapted to rotatably receive an axle and defining at least one pedal platform base upon which is disposed a layer of elastomeric material to form a pedal platform surface. For each pedal platform base, the main pedal body defines a delamination shield that extends beyond the respective pedal platform base to shield a vanguard inferior edge of the respective layer of elastomeric material.

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 bicycle lock pedal comprises a lock plate, a first lock block, a second lock block and an iron sheet are arranged on the lock plate, and the iron sheet is connected between the first lock block and the second lock block; the lock frame is provided with a first lock opening and a second lock opening, the first lock block is connected into the first lock opening, and the second lock block is connected into the second lock opening; the magnetic attraction piece is connected between the first locking opening and the second locking opening; and one end of the rotating piece is connected with the lock frame. According to the bicycle lock pedal, a lock plate can be fixedly installed on a lock shoe of a user, a lock frame is rotationally connected with a bicycle crank through a rotating piece, and a magnetic attraction piece is installed on the surface of the lock frame; during use, the magnetic attraction piece can generate magnetic force on the iron sheet on the lock plate, the lock plate and the lock shoe are pulled to move towards the lock frame, the first lock block and the second lock block on the lock plate are rapidly locked in the first lock opening and the second lock opening of the lock frame respectively, repeated locking operation of a user is avoided, the locking efficiency of the user is improved, and the experience feeling of the user is improved.

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 bike pedal stud, comprising: a member, wherein: the member comprises a cylindrical hole centrally positioned within the member and extending at least partially through the member; the member is press fit onto a pin of a bike pedal whereby the pin is inserted within the cylindrical hole of the member; a diameter of the cylindrical hole is smaller than a diameter of the pin such that the member remains positioned on the pin due to a friction fit between the member and the pin; and the member at least partially covers the pin when press fit onto the pin such that any contact between a skin of a user and the pin is prevented.

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.

A bicycle drivetrain (3) system for a road bicycle (2), comprising: a transmission assembly (14) having at least two selectable transmission ratios, a single chainring (9) having chainring teeth (10) for engagement with the bicycle chain (7), the chainring teeth (10) being arranged along a chainring (9) circumference, and a cogset (4) comprising a plurality of sprockets (5) each having respective sprocket teeth (6) for engagement with a bicycle chain (7) which defines a minimal interteeth distance, the sprocket teeth (6) being arranged along a respective sprocket (5) circumference, wherein a smallest respective sprocket (5) circumference of any such sprocket (5) of the cogset (4) corresponds to at least twelve times the minimal interteeth distance.

The utility model discloses a mid-motor middle shaft structure of an electric moped. The mid-motor middle shaft structure comprises a detection unit, wherein the detection unit comprises a plurality of strain gauges, a rotating assembly and a fixing assembly; the fixed assembly comprises a fixed power supply part, a fixed PCBA and a grating sensor, the fixed power supply part is configured to be powered on from the middle motor, and the fixed power supply part supplies power to the fixed PCBA and the grating sensor; the fixing assembly is fixedly arranged relative to the middle motor. The rotating assembly comprises a rotating power supply part, a rotating PCBA and a grating. The rotating power supply part supplies power to the rotating PCBA. The grating sensor is used for detecting grating signals; the rotating assembly is fixedly arranged relative to the middle shaft; the rotary PCBA is configured to collect the torsional strain of the strain gauge; the rotary power supply component wirelessly supplies power to the fixed power supply component; the fixed PCBA is in wireless communication transmission with the rotary PCBA; and the fixed PCBA is used for signal transmission with the middle motor. And high integration can be realized in a limited space.

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.

The invention discloses a pedal structure, and aims to provide a pedal structure capable of improving riding convenience. The pedal comprises a pedal body, a shell is fixed to the bottom face of the pedal body, a connecting shaft and a balancing weight are installed on the shell, the connecting shaft is rotationally connected with the shell, the connecting shaft is arranged between the pedal body and the balancing weight, and a plane formed by the gravity center of the balancing weight and the center line of the connecting shaft is perpendicular to the pedal body. The connecting shaft and the balancing weight are detachably connected with the shell. The bicycle has the beneficial effects that the riding convenience is improved; the riding safety is improved; the structure is designed in a unitized mode, parts are simple and easy to machine, when parts at a certain part are damaged, the parts can be independently disassembled and replaced, overall disassembly and replacement are avoided, and the maintenance cost is greatly reduced. The structure is simple, operation is convenient, and assembling efficiency is high; the friction loss is reduced, the rotation smoothness is improved, and meanwhile the positioning and damping effects are achieved.

The utility model relates to an optimal installation crank system which comprises a crank and a pedal and further comprises an adapter, the adapter is connected with the crank and used for being connected with a center shaft in a five-way joint, matching cavities extending in the axis direction of the center shaft are formed in the two ends of the center shaft, and the adapter can penetrate through the matching cavities from one ends of the matching cavities; the connecting assembly is used for being connected with the adapter, the connecting assembly is provided with a locking position and a releasing position, and in the locking position, the middle shaft is matched with the connecting assembly so that the matching cavity can be connected with the adapter in a locked mode; and at the release position, the middle shaft is separated from the connecting assembly, so that the crank can be separated from the middle shaft in the axial direction of the adapter. The device has the advantages that the comfort of the child in the riding mode is improved, the child can exert force conveniently, and the safety of leg movement of the child in the sliding mode is guaranteed.

The detachable bicycle pedal comprises a pedal sleeve, a movable plate and a fixed plate, a limiting sleeve is arranged in the center of the left side of the pedal sleeve, second bolts are arranged on the upper portion and the lower portion of the limiting sleeve, a reflective strip is arranged on the front side of the pedal sleeve, and fixing holes are formed in the front side and the rear side of the upper surface of the pedal sleeve; a movable plate is fixedly connected to the right side of the fixed plate, second screw holes are formed in the front side and the rear side of the movable plate, a movable threaded rod is arranged on the left side of the fixed plate, a nut is arranged on the outer surface of the threaded rod, a movable plug pin is arranged in the nut, and a first screw hole is formed in the fixed plate. By means of the structure, stains inside the pedal can be cleaned, and meanwhile more labor can be saved in the riding process.

Drive unit 2 for a muscle- and / or motor-powered vehicle, in particular a pedelec, S-pedelec, eBike or electric bicycle, comprising a crankshaft, an output shaft and at least one friction element, wherein the crankshaft at least partially penetrates the output shaft and, wherein the crankshaft and the output shaft are movable relative to each other and, wherein an axis of the crankshaft and an axis of the output shaft are arranged coaxially, wherein the friction element is designed in such a way that it reduces the relative movement between the output shaft and the crankshaft.

The invention relates to an arrangement for detecting a bearing force of a bottom bracket of a bicycle, comprising a bottom bracket which comprises an inner ring and an outer ring, a sound generator, and a detection unit, wherein the sound generator is configured to generate a structure-borne sound signal which is transmitted between the inner ring and the outer ring of the bottom bracket, and wherein the detection unit is configured to detect the structure-borne sound signal transmitted between the inner ring and the outer ring and to determine a bearing force at the bottom bracket based on the detected structure-borne sound signal.

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.