[특허]Magnet-type resistance generator for an exercise apparatus

Magnet-type resistance generator for an exercise apparatus 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A63B-069/16 A63B-021/24
출원번호	US-0098427 (1993-07-27)
발명자 / 주소	Lo Peter K. (Taichung TWX)
출원인 / 주소	Johnson Metal Industries Co., Ltd. (Taichung Hsien TWX 03)
인용정보	피인용 횟수 : 35 인용 특허 : 0

초록 ▼

A magnet-type resistance generator is to be used with an exercise apparatus which has a flywheel and includes a magnet unit with a curved housing which confines a groove and which has opposite inner wall surfaces that are respectively provided with a plurality of permanent magnets which extend into the groove. A tubular sleeve extends from a rear side of the curved housing and has a distal end which is formed with an internally threaded portion. The tubular sleeve is received slidably in a tubular slide seat. A guide bolt extends axially into the slide seat and has a threaded portion that engages the internally threaded portion of the tubular sleeve. A slide potentiometer has a slider connected to the curved housing of the magnet unit. An instrument control unit activates a motor to rotate the guide bolt axially and cause the tubular sleeve to move slidably in the slide seat, thereby moving the magnet unit toward or away from the periphery of the flywheel so that the periphery of the flywheel can extend into the groove of the curved housing by a desired depth in order to attain a desired resistance to rotation of the flywheel. The slider moves with the magnet unit to permit the slide potentiometer to control the instrument control panel to deactivate the motor when the desired depth has been reached.

대표청구항 ▼

A magnet-type resistance generator for an exercise apparatus, said exercise apparatus including a frame assembly, a flywheel mounted rotatably on said frame assembly, and a manually operated driving unit for driving rotatably said flywheel, said magnet-type resistance generator comprising: a magnet unit including a curved housing which has a U-shaped horizontal cross-section, said curved housing confining a groove and having opposite inner wall surfaces that are respectively provided with a plurality of permanent magnets which extend into said groove, said groove having a shape which conforms with a periphery of said flywheel; a tubular sleeve extending from a rear side of said curved housing and having a distal end which is formed with an internally threaded portion; a tubular slide seat mounted on said frame assembly adjacent to said flywheel, said slide seat confining a through hole to receive slidably said tubular sleeve therein; a guide bolt extending axially into said slide seat and having a threaded portion that engages said internally threaded portion of said tubular sleeve, said guide bolt further having a distal end which extends out of said slide seat and which is provided with a first transmission gear; a motor having an axle which is provided with a second transmission gear that meshes with said first transmission gear; a slide potentiometer mounted on said frame assembly, said slide potentiometer having a slider connected to said curved housing of said magnet unit; and an instrument control unit mounted on said frame assembly and connected electrically to said slide potentiometer, said instrument control unit activating said motor to rotate said guide bolt axially and cause said tubular sleeve to move slidably along said through hole of said slide seat, thereby moving said magnet unit toward or away from said periphery of said flywheel so that said periphery of said flywheel can extend into said groove of said curved housing by a desired depth in order to attain a desired resistance to rotation of said flywheel, said slider moving with said magnet unit to permit said slide potentiometer to control said instrument control panel to deactivate said motor when the desired depth has been reached.

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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연합인증

Magnet-type resistance generator for an exercise apparatus 원문보기

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Magnet-type resistance generator for an exercise apparatus 원문보기

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이 특허를 인용한 특허 (35)

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