Apparatus for applying a reaction force to a pivotally supported pedal member upon depression thereof
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G05G-001/14
F16H-053/00
출원번호
US-0656151
(2003-09-08)
우선권정보
JP-2003-312200(2003-09-04)
발명자
/ 주소
Fujiwara,Noboru
출원인 / 주소
Toyoda Iron Works Co., Ltd.
대리인 / 주소
Finnegan, Henderson, Farabow, Garrett &
인용정보
피인용 횟수 :
11인용 특허 :
10
초록▼
An apparatus for applying a reaction force to a pedal member. The apparatus includes: a reaction-force applying device for applying the reaction force to the pedal member and changing the reaction force; and a reaction-force controlling device for controlling or changing the reaction force on the ba
An apparatus for applying a reaction force to a pedal member. The apparatus includes: a reaction-force applying device for applying the reaction force to the pedal member and changing the reaction force; and a reaction-force controlling device for controlling or changing the reaction force on the basis of a depressing stroke of the pedal member, according to a predetermined pattern of change of the reaction force. The reaction-force applying device includes a spring member connected at one of its opposite ends to a connected portion of the pedal member for applying a reaction force to the pedal member; and a pivotable cam member held in engagement with the other end of the spring member, such that the other end of the spring member is movable toward and away from the connected portion of the pedal member, in response to pivot motion of the cam member.
대표청구항▼
The invention claimed is: 1. A pedal reaction force applying apparatus for applying a reaction force to a pedal member which is pivotably supported by a support shaft and which is depressible to be pivoted about an axis of said support shaft, said apparatus comprising: a reaction-force applying dev
The invention claimed is: 1. A pedal reaction force applying apparatus for applying a reaction force to a pedal member which is pivotably supported by a support shaft and which is depressible to be pivoted about an axis of said support shaft, said apparatus comprising: a reaction-force applying device for applying said reaction force to said pedal member and changing said reaction force; a reaction-force controlling device for controlling said reaction-force applying device such that said reaction force is changed on the basis of a depressing stroke of said pedal member, according to a predetermined pattern of chance of said reaction force, wherein said reaction-force applying device includes: a spring member which is connected, at one of opposite ends thereof, with a connected portion of said pedal member that is spaced away from said axis of said support shaft, and which is elastically deformed upon depression of said pedal member, for thereby applying said reaction force to said pedal member; and a reaction-force changing mechanism for changing said reaction force, by moving the other of said opposite ends of said spring member toward and away from said connected portion of said pedal member. wherein said reaction-force changing mechanism includes a cam member which is pivotable about an axis of a pivot shaft and which has an engaged portion whose distance from said axis of said pivot shaft is continuously changed as viewed in a circumferential direction of said cam member, and wherein said engaged portion of said cam member is held in engagement with said other of said opposite ends of said spring member, so that said other of said opposite ends of said spring member is movable toward and away from said connected portion of said pedal member, by said engaged portion as a result of the pivotable motion of said cam member. 2. An apparatus according to claim 1, wherein said reaction-force controlling device includes a transmission mechanism which connects said pedal member with said reaction-force applying device, for transmitting pivot motion of said pedal member to said reaction-force applying device upon depression of said pedal member. 3. An apparatus according to claim 1, wherein said reaction-force controlling device includes a stroke sensor for detecting said depressing stroke of said pedal member, and a controller for controlling said reaction-force applying device on the basis of said depressing stroke of said pedal member detected by said stroke sensor, and wherein said reaction-force applying device includes a drive device for changing said reaction force on the basis of a signal supplied from said controller. 4. An apparatus according to claim 1, wherein said engaged portion of said cam member is provided by an outer circumferential surface of said cam member. 5. An apparatus according to claim 1, wherein said reaction-force controlling device includes a transmission mechanism which connects said pedal member with said cam member, for transmitting a pivotable motion of said pedal member to said cam member upon depression of said pedal member, and wherein said transmission mechanism includes a first pulley which is pivotable together with said pedal member about said axis of said support shaft, a second pulley which is pivotable together with said cam member about said axis of said pivot shaft, and a timing belt which connects said first and second pulleys. 6. An apparatus according to claim 1, wherein said reaction-force controlling device includes a transmission mechanism which connects said pedal member with said cam member, for transmitting a pivotable motion of said pedal member to said cam member upon depression of said pedal member, and wherein said transmission mechanism includes a first meshing member which is pivotable together with said pedal member about said axis of said support shaft, and a second meshing member which is pivotable together with said cam member about said axis of said pivot shaft and which is held in meshing engagement with said first meshing member. 7. An apparatus for applying a reaction force to a pedal, member which is pivotably supported by a support shaft and which is depressible to be pivoted about an axis of said support shaft, said apparatus by comprising: a cam member which is pivotable about an axis of a pivot shaft that is parallel with said axis of said support shaft, and which has an engaged portion whose distance from said axis of said pivot shaft is continuously changed as viewed in a circumferential direction of said cam member, a transmission mechanism which connects said pedal member with said cam member, for transmitting pivot motion of said pedal member to said cam member upon depression of said pedal member and a spring member which is interposed between said cam member and a longitudinally intermediate portion of said pedal member that is distant from said support axis of said support shaft, said spring member being elastically deformed upon depression of said pedal member, for thereby applying said reaction force to said pedal member, said spring member having an engaged end portion which is held in engagement with said engaged portion of said cam member and which is displaceable following a profile of said engaged portion of said cam member, for thereby changing said reaction force applied to said pedal member.
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