IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0481870
(2002-06-26)
|
등록번호 |
US-7270619
(2007-09-18)
|
우선권정보 |
FR-01 08393(2001-06-26) |
국제출원번호 |
PCT/FR02/002211
(2002-06-26)
|
§371/§102 date |
20040607
(20040607)
|
국제공개번호 |
WO03/002892
(2003-01-09)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
16 인용 특허 :
7 |
초록
▼
a linear actuator capable of transmitting tractive forces as well as thrust forces and operating then as a rigid single-piece rod. The linear actuator has two identical actuating belts (1, 1') with notches on each of their sides (10, 10'; 11, 11') and provided on one first side (10, 10') with unifor
a linear actuator capable of transmitting tractive forces as well as thrust forces and operating then as a rigid single-piece rod. The linear actuator has two identical actuating belts (1, 1') with notches on each of their sides (10, 10'; 11, 11') and provided on one first side (10, 10') with uniformly spaced blocks (2, 2') which mesh with drive members (3) such that the two actuating belts (1, 1') are independent upstream of the drive members (3), whereas downstream of the drive members, they are integrally assembled so as to define a section extending along a straight line wherein the linear actuator operates like a single-piece rigid rod.
대표청구항
▼
The invention claimed is: 1. A linear actuator for transmitting tractive and thrust forces, said actuator comprising: first and second flexible actuating belts, each said actuating belts having an inner face and an outer face, each said inner faces including a plurality of spaced apart studs dispos
The invention claimed is: 1. A linear actuator for transmitting tractive and thrust forces, said actuator comprising: first and second flexible actuating belts, each said actuating belts having an inner face and an outer face, each said inner faces including a plurality of spaced apart studs disposed thereon, said studs spaced apart by spaces of equal length, a first tooth disposed on said inner faces in each said spaces of both said actuating belts, each said space associated with each said belt shaped to form fittingly receive therein a said stud disposed on the other said actuating belt to thereby completely fill said space, each said studs including first and second side faces, a front active face, a rear active face, and a substantially rectilinear face disposed between said front active face and said rear active face, each said rectilinear face having a second tooth disposed thereon, said outer faces of said actuating belts each having a plurality of third teeth disposed thereon; a control member operatively associated with said first and second belts to cause the plurality of studs disposed on said first and second belts to mesh with one another, said control member comprising a pair of toothed members, each said toothed member having a plurality of fourth teeth operatively arranged to mesh with said plurality of third teeth, so that when said first and second teeth are caused to mesh by said control member, said studs of said respective first and second belts are each form fittingly received in said spaces of said respective second and first belts, each of said plurality of said first teeth of said respective first and second belts are engaged with said second tooth associated with said respective second and first belts, and said plurality of third teeth of said respective first and second belts are each engaged with said plurality of fourth teeth of one of said toothed members, wherein said meshed belts are independent upstream of said control member and form a unitary rigid member downstream of said control element without voids between said studs. 2. The linear actuator of claim 1 wherein said first and second actuating belts are comprised of a reinforced plastic material. 3. The linear actuator of claim 1 wherein said first teeth, said second teeth, and said third teeth are identical in shape. 4. The linear actuator of claim 1 wherein each said front and said rear active faces are S shaped. 5. The linear actuator of claim 1 wherein each said front and said rear active faces include a double shoulder to thereby prevent said meshing studs from transversely sliding relative to one another downstream of said control element. 6. The linear actuator of claim 1 wherein said toothed members comprise two endless belts, each said endless belts having first and second sides, said fourth teeth located on a first side of each said respective endless belts, said control member further comprising a rotatable driving pinion and a rotatable driven pinion, said driving pinion drivingly engaging said driven pinion and said two endless belts. 7. The linear actuator of claim 6 wherein each said driving and driven pinions include a toothed extension, said control member further including two auxiliary idler gears, said respective toothed extensions and auxiliary idler gears directly engaging said respective endless belts. 8. The linear actuator of claim 6 wherein said control member further includes a plurality of positioning rollers for engaging said side faces.
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