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 Title: |
US6536544:
Walking aid apparatus
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Egawa, Saku; Ibaraki-ken, Japan
Koseki, Atsushi; Toride, Japan
Nemoto, Yasuhiro; Ibaraki-ken, Japan
Fujie, Masakatsu G.; Ushiku, Japan
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| Assignee: |
Hitachi, Ltd., Tokyo, Japan
other patents from HITACHI, LTD (252865) (approx. 26,413)
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| Published / Filed: |
2003-03-25
/ 1999-09-15
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| Application Number: |
US1999000381093
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| IPC Code: |
Advanced:
A61H 3/04;
Core:
A61H 3/00;
IPC-7:
B62D 51/04;
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| ECLA Code: |
A61H3/04; K61H3/04A; K61H3/04B;
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| U.S. Class: |
180/019.3;
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| Field of Search: |
180/19.1,19.2,19.3
701/223
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| Priority Number: |
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| Abstract: |
A walking aid apparatus including a movable body and a support unit provided to the movable body to support a user further includes means for reducing a change rate of speed of the movable body with respect to a change in a force applied from the user to the support unit. With this arrangement, even when the user stumbles and applies a strong force to the support unit, the movable body can be prevented from moving suddenly, minimizing the possibility of the user being left behind the movable body.
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| Attorney, Agent or Firm: |
Antonelli, Terry, Stout & Kraus, LLP ;
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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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| Designated Country: |
DE IT EP JP US
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| Family: |
Show 3 known family members
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First Claim:
Show all 13 claims |
What is claimed is:
1. A walking aid apparatus which aids a user in walking, comprising:
- a movable body having a support unit which supports the walking user for walking movement of the user;
- a drive which enables movement of the movable body;
- a controller which controls movement of the movable body by control of the drive; and
- a speed detector which detects the speed of movement of the movable body;
- the controller controlling the speed of the movable body at least in accordance with an output of the speed detector and reducing a change rate of the speed of movement of the movable body with respect to a change in force acting on the support unit which supports the walking user for walking movement when the speed of movement of the movable body increases.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| PCT Number: |
PCT/JP97/00837
WO9841182
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| PCT Pub./Filed Dates: |
1998-09-24 / 1997-03-17
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| § 371 / 102(e) Dates: |
1111-11-11 / 1111-11-11
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| Forward References: |
Show 6 U.S. patent(s) that reference this one
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