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 Title: |
US6470981:
POWER-ASSISTED HAND CARRIER[En]
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Sueshige, Hiroshi; Wako, Japan
Miyahara, Kazuyoshi; Wako, Japan
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| Assignee: |
Honda Giken Kogyo Kabushiki Kaisha Japan
other patents from HONDA GIKEN KOGYO KABUSHIKI KAISHA (HONDA MOTOR CO., LTD.) (256400) (approx. 9,061)
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| Published / Filed: |
2002-10-29
/ 2000-03-06
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| Application Number: |
US2000000519513
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| IPC Code: |
Advanced:
B62B 1/18;
B62B 5/00;
B62D 51/06;
Core:
B62B 1/00;
B62D 51/00;
more...
IPC-7:
B62D 51/04;
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| ECLA Code: |
B62B1/18; B62B5/00P; B62D51/06;
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| U.S. Class: |
180/019.3;
180/065.6;
280/078;
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| Field of Search: |
180/19.1,19.2,19.3,65.6,65.5,65.8
280/653,655,659,78
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| Priority Number: |
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| Abstract: |
In a power-associated hand carrier including a body frame on which a wheel and a motor for driving the wheel are mounted, a manually operated forward drive control member for enabling the motor to produce power assist for moving the hand carrier in the forward direction and a manually operated reverse drive control member for enabling the motor to produce power for driving the hand carrier in the backward direction are both provided on the distal end portion of one of two handlebars extending from a rear portion of the body frame obliquely upward in a rearward direction of the hand carrier. The hand carrier having such forward and reverse drive control members is easy to handle and can exhibit good mobility when used in a relatively narrow working area or when moving over rough or angulated ground surfaces.
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| Attorney, Agent or Firm: |
Adams & Wilks ;
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| Primary / Asst. Examiners: |
Olszewski, Robert P.; Fischer, Andrew J.
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| INPADOC Legal Status: |
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Family Legal Status Report
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| Family: |
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First Claim:
Show all 17 claims |
What is claimed is:
1. A power-assisted wheelbarrow, comprising:
- a body frame;
- a load-carrying platform supported by an upper portion of said body frame;
- a pair of left and right handlebars extending from a rear portion of said body frame obliquely upward in a rearward direction of said wheelbarrow;
- a single wheel rotatably supported by said body frame at a transverse central portion of the wheelbarrow;
- a power unit mounted on said body frame for producing rotating power, said power unit being operatively connected with said wheel such that said wheel is rotated by the rotating power; and
- a controller for controlling operation of said power unit to change the direction and intensity of the rotating power so that said wheel can be driven in both forward and backward directions at a variable speed;
- wherein said controller includes a manually operated forward drive control member provided on a distal end portion of one of said handlebars for enabling said power unit to operate in such a manner as to produce necessary power assist for moving said wheelbarrow in a forward direction, and a manually operated reverse drive control member provided on the distal end portion of said one handlebar for enabling said power unit to operate in such a manner as to produce power for driving said wheelbarrow in a backward direction;
- wherein said manually operated forward drive control member is a slidable grip slidably mounted on the distal end portion of said one handlebar and movable in the forward direction in response to a forward thrust applied to said slidable grip, and said manually operated reverse drive control member is a manually operated reverse drive control lever pivotally mounted on said one handlebar in the proximity of said slidable grip; and
- wherein said controller further includes a first displacement sensor mounted on one of said one handlebar and said body frame for detecting a forward displacement of said slidable grip and producing an output signal corresponding to the detected forward displacement of said slidable grip, and a second displacement sensor mounted on one of said one handlebar and said body frame for detecting an angular displacement of said manually operated reverse drive control lever and producing an output signal corresponding to the detected angular displacement of said manually operated reverse drive control lever, and wherein said power unit produces said power assist based on said output signal from said first displacement sensor and also produces said driving power based on said output signal from said second displacement sensor.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 5 U.S. patent(s) that reference this one
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