# US 12,214,651 B2 · Battery device and electric bicycle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,214,651 B2 - Document ID: US12214651B2 - Status: Granted - Kind: B2 - Application number: 17/873,233 - Filed: 2022-07-26 - Published: 2023-02-02 - Granted: 2025-02-04 - Earliest claimed: 2021-07-30 - Assignees: Yamaha Hatsudoki Kabushiki Kaisha - Applicants: Yamaha Hatsudoki Kabushiki Kaisha - Inventors: Norihiro Morozumi; Noriyasu Ishikawa - Web page: https://patentgrep.com/patent/US12214651B2 ## CPC - B60K 1/04: of the electric storage means for propulsion - B62J 43/13: on rider-propelled cycles with additional electric propulsion - B60L 50/20: using propulsion power generated by humans or animals - B60L 50/64: Constructional details of batteries specially adapted for electric vehicles - B62H 5/001: {Preventing theft of parts or accessories used on cycles, e.g. lamp, dynamo (B62H5/006 takes precedence; devices for attaching pumps to cycles B62J11/02)} - B62J 43/23: dismounted when charging - B62J 43/28: hidden within the cycle frame - B62K 19/40: for attaching accessories, e.g. article carriers, lamps - B62M 6/90: Batteries - H01M 50/244: Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method - H01M 50/249: specially adapted for aircraft or vehicles, e.g. cars or trains (constructional details of batteries specially adapted for electric vehicles B60L50/64) - H01M 50/262: with fastening means, e.g. locks - H01M 50/264: for cells or batteries, e.g. straps, tie rods or peripheral frames - B60K 2001/0455: {Removal or replacement of the energy storages} - B60K 2001/0472: {from below} - B60L 53/80: Exchanging energy storage elements, e.g. removable batteries - B60L 2200/12: Bikes - B60Y 2200/13: Bicycles; Tricycles - H01M 2220/20: Batteries in motive systems, e.g. vehicle, ship, plane - Y02E 60/10: Energy storage using batteries - B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES - B62J: CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS - B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES - B62H: CYCLE STANDS; SUPPORTS OR HOLDERS FOR PARKING OR STORING CYCLES; APPLIANCES PREVENTING OR INDICATING UNAUTHORIZED USE OR THEFT OF CYCLES; LOCKS INTEGRAL WITH CYCLES; DEVICES FOR LEARNING TO RIDE CYCLES - B62K: CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDECARS, FORECARS, OR THE LIKE - B62M: RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR {SINGLE-TRACK} CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES (arrangements or mounting of transmissions in vehicles in general B60K; transmission elements per se F16) - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - B60Y: INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract A battery device of an electric bicycle includes a battery, a battery mount which allows attachment/detachment of the battery, a stepped portion, and a restriction release in a first end of the battery, and an engaging portion and a second movement restrictor in a first support of the battery mount. The engaging portion is restricted in its movement, by the second movement restrictor, from an engaged position where it is engaged by the stepped portion to a disengaged position where it is not engaged by the stepped portion. When the battery is to be removed, from the battery mount, the restriction by the second movement restrictor is removed, the restriction release is used to move the engaging portion from the engaged position to the disengaged position, and then the battery is pulled in a removal direction, to remove the battery from the battery mount. ## Claims ### Claim 1 A battery device comprising: a battery; a battery mount including a first support and a second support respectively supporting a first end and a second end of the battery to allow attachment/detachment of the battery; a first movement restrictor provided at the first end of the battery; an engaging portion provided in the first support and movable between an engaged position to engage with the first movement restrictor and a disengaged position in which engaging portion is not engaged with the first movement restrictor; and a second movement restrictor provided in the first support to position the engaging portion at the engaged position to restrict the engaging portion from moving toward the disengaged position; wherein the battery is removable from the battery mount in a removal direction that is either a direction in which the battery is pivoted around the second end of the battery, or a direction perpendicular or substantially perpendicular to a longitudinal direction of the battery; the engaged position and the disengaged position of the engaging portion extend along a widthwise direction or the longitudinal direction of the battery; and the engaged position is a position where the engaging portion is in engagement with the first movement restrictor to make the battery non-removable from the battery mount, and the disengaged position is a position where the engaging portion is not in engagement with the first movement restrictor to make the battery removable from the battery mount. ### Claim 2 (depends on 1) The battery device according to claim 1, wherein the first movement restrictor includes a stepped portion provided at the first end of the battery. ### Claim 3 (depends on 1) The battery device according to claim 1, wherein the second movement restrictor includes a first biaser to bias the engaging portion from the disengaged position toward the engaged position. ### Claim 4 (depends on 1) The battery device according to claim 1, wherein the second movement restrictor includes a stopper and an operator to advance/retract the stopper to/from a position where the stopper is engaged by the engaging portion. ### Claim 5 (depends on 1) The battery device according to claim 1, further comprising a restriction release provided in the first end of the battery to move the engaging portion from the engaged position to the disengaged position. ### Claim 6 (depends on 5) The battery device according to claim 5, wherein the restriction release is movable in a widthwise direction of the battery. ### Claim 7 (depends on 4) The battery device according to claim 4, further comprising a restriction release provided in the first end of the battery to move the engaging portion from the engaged position to the disengaged position; wherein the restriction release is located on a more downstream side than the operator of the second movement restrictor in the removal direction. ### Claim 8 (depends on 5) The battery device according to claim 5, further comprising a second biaser to bias the restriction release from the disengaged position toward the engaged position. ### Claim 9 (depends on 1) The battery device according to claim 1, further comprising a guide provided in the first end of the battery and extending at least in the removal direction as viewed from the longitudinal direction of the battery to guide the engaging portion. ### Claim 10 (depends on 9) The battery device according to claim 9, further comprising a groove including the guide, the groove being provided in the first end of the battery and extending at least in the removal direction as viewed from the longitudinal direction of the battery to allow the engaging portion to pass therethrough. ### Claim 11 (depends on 10) The battery device according to claim 10, wherein the groove is wider on an upstream side of the guide than a downstream side of the guide in the removal direction. ### Claim 12 (depends on 1) The battery device according to claim 1, further comprising: a guide tab provided in one of the battery and the battery mount; and a guide groove provided in the other of the battery and the battery mount to receive the guide tab therein. ### Claim 13 (depends on 12) The battery device according to claim 12, wherein the guide tab is provided in the first support and extends along the removal direction as viewed from the longitudinal direction of the battery; and the guide groove is provided in the first end of the battery and extends along the removal direction as viewed from the longitudinal direction of the battery. ### Claim 14 (depends on 12) The battery device according to claim 12, wherein the guide tab is provided on a more upstream side than the engaging portion in the removal direction. ### Claim 15 (depends on 12) The battery device according to claim 12, wherein the guide tab includes a first engagement portion; and the guide groove includes a second engagement portion engageable with the first engagement portion. ### Claim 16 (depends on 15) The battery device according to claim 15, wherein the engaging portion and the first movement restrictor have an engagement margin that is greater than a clearance between the first engagement portion and the second engagement portion when the battery is mounted on the battery mount and the engaging portion is in the engaged position. ### Claim 17 (depends on 12) The battery device according to claim 12, further comprising a damper provided in the guide groove. ### Claim 18 (depends on 1) The battery device according to claim 1, further comprising a T-shaped or substantially T-shaped receiver provided in the first end of the battery. ### Claim 19 (depends on 1) An electric bicycle comprising: the battery device according to claim 1. ### Claim 20 (depends on 5) The battery device according to claim 5, wherein the restriction release is integral with the engaging portion.