To provide an electric assist carriage having good operability.SOLUTION: An electric assist carriage 10 includes: a handle 44 supported by a vehicle body 12; wheels 18a, 18b which support the vehicle body 12; electric motors 26a, 26b which drive the wheels 18a, 18b; and a control part 34 which controls assist force generated by the electric motors 26a, 26b according to an input amount to the handle 44. In the carriage, a neutral area is provided in which the assist force is not generated when the input amount to the handle 44 falls within a prescribed range. Between the handle 44 and the vehicle body 12, first elastic bodies 100a, 100b, 102a, 102b which hold the handle 44 at a neutral position when there is no input to the handle 44, second elastic bodies 104a, 104b which deform according to input to the handle 44 in a push direction but do not deform even if there is input in a pull direction, and third elastic bodies 106a, 106b which deform according to input to the handle 44 in the pull direction but do not deform even if there is input in the push direction, are provided.SELECTED DRAWING: Figure 1
【課題】操作性がよい電動アシスト台車を提供する。【解決手段】電動アシスト台車10は、車体12によって支持されるハンドル44と、車体12を支持する車輪18a,18bと、車輪18a,18bを駆動する電動モータ26a,26bと、ハンドル44への入力量に応じて電動モータ26a,26bが発生するアシスト力を制御する制御部34とを含み、ハンドル44への入力量が所定範囲内ではアシスト力を発生しない中立領域が設けられる。ハンドル44と車体12との間には、ハンドル44への入力がないときにハンドル44を中立位置に保持する第1弾性体100a,100b,102a,102bと、ハンドル44への押し方向の入力に応じて変形するが引き方向の入力があっても変形しない第2弾性体104a,104bと、ハンドル44への引き方向の入力に応じて変形するが押し方向の入力があっても変形しない第3弾性体106a,106bとが設けられる。【選択図】図1
ELECTRIC ASSIST CARRIAGE
電動アシスト台車
2021-04-08
Patent
Electronic Resource
Japanese
IPC: | B62B Von Hand bewegte Fahrzeuge, z.B. Handkarren oder Kinderwagen , HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS |
SPRING-BASED ASSIST DEVICE FOR CARRIAGE AND HAND-PUSH CARRIAGE
European Patent Office | 2021
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