106results about "Guards" patented technology

A device for retaining a bicycle chain on a sprocket includes a base plate defining a plurality of fastener openings centered on an origin. A center of each of the plurality of fastener openings is disposed at a first radial distance from the origin. The origin defines an axis extending substantially orthogonally from a plane defined by two lines extending from the origin and at least two centers of the centers of the plurality of fastener openings. A first guard is secured to the base plate and includes a first guard retaining surface including a first curved surface defined by a second radial distance from the axis that is greater than the first radial distance and a first guard guiding surface having a first end adjacent the first guard retaining surface and a second end distal from the first end. The first end is disposed at the second radial distance from the axis. The second end is disposed at a third radial distance from the axis. The third radial distance is greater than the second radial distance. A second guard is secured to the base plate and includes a second guard retaining surface including a second curved surface defined by the second radial distance from the axis. A second guard guiding surface has a first end adjacent the second guard retaining surface and a second end distal from the first end. The first end is disposed at the second radial distance from the axis. The second end is disposed at a fourth radial distance from the axis. The fourth radial distance is greater than the second radial distance.

An electric vehicle including a frame; at least one ground-engaging member operatively connected to the frame; an electric motor operatively connected to the at least one ground-engaging member; an electric powerpack supported by the frame, the powerpack including: a battery pack defining a battery cooling channel; and a plurality of battery cells housed in the battery housing; a charger defining a charger cooling channel; an inverter including an inverter cooling channel, the battery cooling channel, the charger cooling channel, and the inverter cooling channel being fluidly connected together by rigid fluid connections; radiators fluidly connected to the battery cooling channel; a cooling circuit being formed at least in part by the battery cooling channel, the charger cooling channel, the inverter cooling channel, and the at least one radiator; and a pump fluidly connected to the cooling circuit for pumping liquid coolant through the cooling circuit.

A guard assembly for a chain and chain ring includes a bracket and a guard. The bracket and the guard are configured to move relative to one another. The movement is governed by a resilient spring placed to absorb and release impact energy imparted to the guard.

A hub assembly comprises a hub axle, a hub shell, a sprocket support body, a first bearing unit, a second bearing unit, and a sleeve. The sleeve includes a first abutment portion and a second abutment portion. The first abutment portion abuts the first inner race. The second abutment portion abuts the second inner race in a radial direction.

A straddle seat electric vehicle including an electric motor and an electric powerpack including a battery pack including a battery housing including a housing body, a cooling channel extending generally vertically through a center portion of the housing body, two covers selectively connected to the housing body; a plurality of cylindrical battery cells disposed in a two chambers defined by the housing laterally between the cooling channel and the first cover, each battery cell of the first plurality of battery cells extending generally orthogonally to the cooling channel and the first cover; one or more current collectors electrically connected to the first plurality of battery cells, the covers enclosing the current collectors and outer ends of the battery cells being electrically insulated from the at least one first current collector.

Systems, methods, and computer program products for providing synchronized lighting displays for velocipedes. One of a plurality of lighting units causes light emitting devices thereof to emit light according to a predetermined lighting pattern, and transmits a wireless signal including synchronization information for the predetermined lighting pattern. Each of the other lighting units receives the wireless signal, and in response thereto, emits light according to the predetermined lighting pattern. The predetermined lighting pattern emitted by the other lighting units is synchronized with the predetermined lighting pattern emitted by the one lighting unit using the synchronization information provided by the wireless signal.

The utility model relates to the technical field of bicycles, and discloses a bicycle combined crankset cover which comprises a whole cover, and the whole cover comprises a front upper cover, a rear cover and a side edge circular crankset cover. A first accessory is fixedly connected to the rear surface of the front upper cover, a fifth long-strip-shaped hole is formed in the front surface of the first accessory, the front upper cover is fixedly connected with the fifth long-strip-shaped hole through a screw, and a bicycle frame vertical pipe is connected to the inner side wall of the first accessory in a clamped mode. A third accessory is fixedly connected to the rear surface of the rear cover, the rear cover is connected with the third accessory through a height adjusting screw, a bicycle frame rear lower fork is arranged on the rear surface of the third accessory, a metal sheet is arranged on the outer side wall of the bicycle frame rear lower fork, a second long-strip-shaped hole is formed in the front surface of the rear cover, and the metal sheet is arranged in the second long-strip-shaped hole. A fourth long-strip-shaped hole is formed in the front surface of the side edge round chain wheel cover, and a chain wheel is fixedly connected to the rear surface of the side edge round chain wheel cover.

The utility model discloses a tooth piece protective cover, which is arranged on one side of a tooth piece facing a rider, and is characterized in that a plurality of locking nuts are distributed on one side of a cover body of the protective cover facing the tooth piece, and the locking nuts and the cover body are integrated. On one hand, the metal locking nut integrated with the cover body is fixedly connected with the tooth piece, and on the other hand, the tooth part structure is arranged on the peripheral surface of the locking nut to change a torque transmission structure between the locking nut and the cover body when the locking nut is subjected to external force, so that the locking nut can be stably fixed on the cover body; the purpose of improving the connection performance between the protective cover and the tooth sheet is achieved.

To provide a chain storage structure capable of achieving simple and easy detachment of a pedal unit without removing a rear wheel from a frame.SOLUTION: A chain storage structure, in an automobile 10 capable of detaching a pedal unit, includes: a chain 18 engaging with a sprocket 17 integrally rotating with a driving wheel; and a chain case 22 storing the chain 18 and the sprocket 17 with the chain 18 wound around the sprocket 17 along the circumference thereof. The chain case 22 has a pair of shell members 23, 24 formed in a semicircular shape in side view of a bicycle 10 having a storage part for storing the chain 18.SELECTED DRAWING: Figure 2

A single-sprocket system for integration into a bicycle trainer, the system including a sprocket having teeth about a perimeter of the sprocket, a first planar side, and a second planar side, wherein the teeth of the sprocket are configured to engage a chain of a bicycle mounted to the bicycle trainer. The system further includes a first chain guide adjacent the first planar side of the sprocket, wherein the first chain guide is configured to re-engage the teeth of the sprocket with the chain when the chain has become disengaged from the teeth of the sprocket towards the first planar side, and a second chain guide adjacent the second planar side of the sprocket, wherein the second chain guide is configured to re-engage the teeth of the sprocket with the chain when the chain has become disengaged from the teeth of the sprocket towards the second planar side.

A belt housing assembly includes a first shaft with a first bearing that is mounted in a fixed bearing retainer and a second shaft with a second bearing mounted in a rotatable eccentric bearing retainer. A center of the second bearing is offset from a center of the eccentric bearing retainer. A distance between the first shaft and the second shaft is adjustable by rotating the eccentric bearing retainer. A method of adjusting a distance between a first sprocket attached to a first shaft of a drivetrain operatively interconnecting an engine to a ground engagement member of an all-terrain vehicle via a drive belt interconnected with a second sprocket attached to a second shaft of the drivetrain is also provided.

To provide a carbon fiber track racing bicycle having a main structure of a frame integrally molded from carbon fiber, thereby improving strength. [Solution] A carbon fiber track racing bicycle includes a frame formed by integrally hardening carbon fiber. The frame includes a front triangle structure consisting of a top tube I-1, a down tube I-2, and a seat tube I-3, and a rear triangle structure consisting of seat stays I-4, chain stays I-5, and a seat tube. Corresponding fiber layers of the tube members that make up the front triangle structure are distributed along the axial direction of the corresponding tube members, with the seat stays having fiber layers distributed in two different directions, the chain stays having fiber layers distributed in three different directions, and the bottom bracket I-7 having fiber layers distributed in four different directions.

The invention relates to the technical field of mechanical transmission, and particularly discloses a lever stress application gear transmission system which comprises a frame main body, pedals are rotationally connected to the two sides of the frame main body and connected through a connecting rod, and the connecting rod is rotationally inserted into the inner wall of the frame main body; the surface of the connecting rod is fixedly connected with a transmission gear; through the arrangement of the transmission gear, the gear ring, the flywheel, the smooth-surface roller and the tooth-surface roller, during use, the diameter of the gear ring serves as a lever, the joint of the tooth-surface roller and the gear ring serves as a fulcrum of the lever, and a lever stress application condition is formed, so that torque generated when the pedal transmission gear acts is transferred to the flywheel through the gear ring; however, the torque transmitted to the flywheel is multiplied according to the lever principle, then physical output of a rider is remarkably reduced, efficient power transmission is achieved, the physical output of the rider is remarkably reduced through the lever principle, and an energy-saving and efficient gear transmission system is formed.

The utility model discloses a protection structure for a transmission belt of an electric bicycle, the protection structure comprises a connecting plate, a mounting plate and a protection plate, the mounting plate and the protection plate are respectively mounted on two sides of the connecting plate, the mounting plate and the protection plate are both perpendicular to the connecting plate, and the connecting plate is connected with the mounting plate. The connecting plate, the mounting plate and the protective plate define a protective cavity for allowing a synchronous belt to enter the position of a driving synchronous belt wheel; the mounting plate is used for being mounted between a driving synchronous pulley and a frame, and the mounting plate is detachably mounted on the frame through a connecting piece. The transmission device has the effects that impurities entering the meshing position of the synchronous belt and the driving synchronous belt wheel are reduced, and the transmission smoothness is improved.

The utility model relates to the technical field of motorcycle accessories, and discloses a motorcycle chain with a protection structure, which comprises a chain main body, a protection tube is arranged outside the chain main body, a protection mechanism is arranged on the lower surface inside the protection tube, and a cleaning mechanism is arranged at one end of the upper surface of the protection tube. The cleaning mechanism comprises a fan, an air seat is installed at the lower end of the fan, an air cover is installed at the upper end of the fan, and an air pipe is installed on the upper surface of the air cover in a penetrating mode; the protection pipe is arranged outside the chain body in a sleeving mode, the chain body is supported through the internal protection mechanism, the chain body is prevented from loosening and touching other parts on a motorcycle, the fan in the cleaning mechanism draws air from the outside, wind power is sprayed out through the cleaning holes in the surface of the cleaning pipe, and the cleaning effect is improved. Therefore, the surface of the chain body is cleaned, impurities adhered to the surface of the chain body are blown off, and the phenomenon that the chain body and the chain wheel are abraded due to the impurities when the chain body and the chain wheel are meshed is avoided.

An electric vehicle including a frame; at least one ground-engaging member operatively connected to the frame; an electric motor operatively connected to the at least one ground-engaging member; an electric powerpack supported by the frame, the powerpack including: a battery pack defining a battery cooling channel; and a plurality of battery cells housed in the battery housing; a charger defining a charger cooling channel; an inverter including an inverter cooling channel, the battery cooling channel, the charger cooling channel, and the inverter cooling channel being fluidly connected together by rigid fluid connections; radiators fluidly connected to the battery cooling channel; a cooling circuit being formed at least in part by the battery cooling channel, the charger cooling channel, the inverter cooling channel, and the at least one radiator; and a pump fluidly connected to the cooling circuit for pumping liquid coolant through the cooling circuit.

A front assembly (18) for use with a rear module (20, 220) to form a riding vehicle (4, 204) is disclosed. The front assembly includes an elongate frame (24), a mount (54) disposed beneath the elongate frame, a head assembly (22) with a front wheel (6) and handlebar (10), and a seat (14) mounted relative to the elongate frame. The elongate frame terminates in two laterally spaced apart prongs (32) removably securable to connectors (36, 236) of the rear module. The connectors and elongate frame together constitute a bicycle frame (12, 212). The riding vehicle may be convertible between different configurations, such as a balance bicycle and a pedal bicycle, by interchanging rear modules. The rear modules may have different wheel sizes and connector geometries while maintaining compatibility with the front assembly. The riding vehicle may include features for partially encasing the mount in different configurations and may be foldable for compact storage.

The utility model discloses a split mounting type chain box which comprises a box body. The cover plate is arranged on the box body; the splicing structure is arranged on the box body and the cover plate and is convenient for splicing the cover plate and the box body; the assembling structure comprises a positioning boss arranged on the box body, a positioning groove formed in the cover plate and matched with the positioning boss, a lubricating opening formed in the box body and used for lubricating the chain conveniently, and a sealing cover detachably installed on the box body and used for blocking the lubricating opening. According to the split mounting type chain box, when lubricating oil needs to be added to a chain for maintenance, only the sealing cover needs to be taken down from the box body, then the lubricating oil can be added to the chain through the lubricating opening for lubrication maintenance, the whole chain box does not need to be detached from a bicycle, and operation is easy, convenient and rapid.

The invention relates to a traction drive unit with an eccentric tensioner, a vehicle with a traction drive unit and with an eccentric tensioner and a method for assembling a vehicle.

The invention discloses a multi-unit synchronous lighting display for a bicycle, and relates to a system, a method and a computer program product for enabling a bicycle to realize a synchronous lighting display. One of the plurality of lighting units causes a light emitting device thereof to emit light according to a preset lighting mode and emit a wireless signal including synchronization information of the preset lighting mode. And each other lighting unit receives the wireless signal and emits light according to the preset lighting mode. The preset lighting modes sent by other lighting units are synchronized with the preset lighting mode sent by one lighting unit through the synchronization information provided by the wireless signal.

The application discloses a motorcycle, which comprises a frame, a body cover, a walking assembly, a power assembly, a transmission assembly and a steering handle, the body cover comprises a chain wheel cover; the walking assembly comprises a rear wheel; the power assembly comprises an engine, the engine comprises an output shaft; the transmission assembly comprises a chain wheel and a chain, the chain wheel is connected with the output shaft of the engine and is connected with the rear wheel through the chain; the steering handle is located above the engine; the chain wheel cover is located on the left side of the engine and is fixedly connected with the engine; when viewed along the width direction of the motorcycle, the chain wheel cover covers at least part of the chain wheel and the chain; the motorcycle further comprises a control wire harness, one end of the control wire harness is connected with the steering handle, and the other end of the control wire harness is connected with the engine; at least part of the control wire harness is located between the chain wheel cover and the chain wheel, when viewed along the width direction of the motorcycle, the control wire harness at least partially overlaps with the chain, a fixing portion is formed on the chain wheel cover, and the control wire harness is clamped with the fixing portion. Through the arrangement, the driving safety of the motorcycle can be improved.

The utility model relates to a bicycle and particularly discloses an electric bicycle which comprises a bicycle body, a first chain wheel, a chain and a second chain wheel are arranged on the bicycle body, one end of the chain is arranged on the first chain wheel, the other end of the chain is arranged on the second chain wheel, the chain is annularly arranged, the upper side of the chain is arranged in a cross beam of the bicycle body, and the cross beam is transversely arranged. The cross beam is provided with a containing space, the upper side of the chain can be transversely arranged in the containing space and can be in transmission along the transverse space, a connecting beam is further arranged on the vehicle body, the vehicle head of the vehicle body and the cross beam are connected through the connecting beam, and a power source is arranged in the connecting beam. In addition, the power supply can be arranged in the connecting beam, a buckle plate can be arranged on the connecting beam and can be detached from the connecting beam, so that the power supply can be taken out and replaced, and the power supply is arranged at the position of the connecting beam, so that the power supply can be lighter as a whole.

A straddle seat electric vehicle including an electric motor and an electric powerpack including a battery pack including a battery housing including a housing body, a cooling channel extending generally vertically through a center portion of the housing body, two covers selectively connected to the housing body; a plurality of cylindrical battery cells disposed in a two chambers defined by the housing laterally between the cooling channel and the first cover, each battery cell of the first plurality of battery cells extending generally orthogonally to the cooling channel and the first cover; one or more current collectors electrically connected to the first plurality of battery cells, the covers enclosing the current collectors and outer ends of the battery cells being electrically insulated from the at least one first current collector.

A saddle-type vehicle comprising: a swingarm (13) pivoting upwards and downwards; a rear wheel (3) mounted on a rear end section of the swingarm (13); an endless drive force transmission element (39) extending along the swingarm (13) in a forward-reverse direction and configured to transmit the drive force from a drive unit (11) to the rear wheel (3); a cover element (40) attached to the swingarm (13) and covering the drive force transmission element (39); and a sliding piece (60) provided on an upper surface of the swingarm (13) and configured to receive the drive force transmission element (39), in which the cover element (40) has a fastening section (76a, 76b) which is attached to the rocker arm (13) by a fastening element (79), and an engagement section (80) which engages with the sliding piece (60), characterized in that the sliding piece (60) has a pipe section (68) which extends upwards from the top of the rocker arm (13) and is attached to the rocker arm (13) by a sliding piece fastening element (70) which is inserted into the pipe section (68) from above, the engagement section (80) engages with an outer circumferential section of the pipe section (68), and the engagement section (80) is a cut section which has an approximately U-shaped shape open to the front in plan view, and the sliding piece fastening element (70) passes through the cut section in an upward-downward direction.

The utility model relates to the technical field of chain wheel protective covers, in particular to a chain wheel protective cover convenient to disassemble and assemble. The problems that in the using process of a traditional chain wheel protective cover, after bolts are fixed for a long time, due to stains, rust stains and the like, the connecting positions of the bolts are prone to being clamped, the protective cover is troublesome to disassemble, and therefore convenient disassembly and assembly are inconvenient to achieve are solved. The utility model provides a crankset protective cover convenient to disassemble and assemble. The crankset protective cover comprises a positioning assembly and a limiting assembly. Compared with the problems that in the using process of a traditional chain wheel protective cover, after bolts are fixed for a long time, due to stains, rust stains and the like, the connecting positions of the bolts are prone to being blocked, the protective cover is troublesome to disassemble, and therefore convenient and fast disassembly and assembly are inconvenient to achieve, the chain wheel protective cover is provided with the positioning structure and the limiting structure; the protective shell and the installation position are installed in a limited mode through the limiting structure, so that the purpose of preventing deviation can be achieved, then the positioning structure can be driven to move in two directions by rotating the guiding structure, positioning installation can be conducted through the positioning structure, operation is simple, and therefore the purpose of convenient and fast disassembly and assembly can be achieved.