Personal care device as well as a cutting unit for such a personal care device
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B26B-019/38
B26B-019/14
출원번호
US-0904976
(2014-07-16)
등록번호
US-9956697
(2018-05-01)
우선권정보
EP-13177931 (2013-07-25)
국제출원번호
PCT/EP2014/065212
(2014-07-16)
국제공개번호
WO2015/010979
(2015-01-29)
발명자
/ 주소
Pragt, Johan
Van Kempen, Wouter
Van Eibergen Santhagens, Robert Alexander
Zeinel-Din, Tarek
출원인 / 주소
KONINKLIJKE PHILIPS N.V.
인용정보
피인용 횟수 :
0인용 특허 :
3
초록▼
A personal care device is provided with a cutting unit comprising an external cutting member and an internal cutting member. A virtual skin plane is located on a side of the external cutting member facing away from the internal cutting member. The internal cutting member comprises cutting elements e
A personal care device is provided with a cutting unit comprising an external cutting member and an internal cutting member. A virtual skin plane is located on a side of the external cutting member facing away from the internal cutting member. The internal cutting member comprises cutting elements each having a first cutting edge. The external cutting member comprises hair-entry apertures each having a second cutting edge. In a starting position of cutting a hair situated in a cutting position in the hair-entry aperture and extending perpendicularly to the virtual skin plane, the first cutting edge is in contact with the hair in a first contact position, and the second cutting edge is in contact with the hair in a second contact position, wherein the first contact position is closer to the virtual skin plane than the second contact position.
대표청구항▼
1. A personal care device provided with at least one cutting unit, each cutting unit comprising: an external cutting member and an internal cutting member which is moveable relative to the external cutting member in at least one direction of movement, wherein the internal cutting member includes a p
1. A personal care device provided with at least one cutting unit, each cutting unit comprising: an external cutting member and an internal cutting member which is moveable relative to the external cutting member in at least one direction of movement, wherein the internal cutting member includes a plurality of cutting elements each having a first cutting edge,wherein a projection of the first cutting edges in a virtual skin plane, which is located on a side of the external cutting member facing away from the internal cutting member and which extends parallel to said direction of movement and parallel to a skin surface when the cutting unit is in an operational position relative to the skin surface, encloses at least a first shearing angle with said direction of movement,wherein the external cutting member includes a plurality of hair-entry apertures each having a second cutting edge for cooperation with at least one of the first cutting edges,wherein a projection of the second cutting edges in the virtual skin plane encloses at least a second shearing angle with the direction of movement,characterized in that, for at least a percentage of at least 60 of all the hair-entry apertures of the external cutting member each having the second cutting edge for cooperation with at least one of the first cutting edges of the internal cutting member, the projections of the first and second cutting edges in a plane extending perpendicularly to the direction of movement enclose, respectively, a first inclination angle and a second inclination angle with the virtual skin plane of the cutting unit, wherein the first and second inclination angles and the first and second shearing angles are selected such that, at least in a starting position of cutting a virtual cylindrical hair with a diameter of 150 microns situated in a cutting position in the hair-entry aperture and extending perpendicularly to the virtual skin plane, the first cutting edge is in contact with the virtual cylindrical hair in a first contact position and the second cutting edge is in contact with the virtual cylindrical hair in a second contact position, andwherein the first contact position is closer to the virtual skin plane than the second contact position. 2. A personal care device according to claim 1, wherein the percentage of all the hair-entry apertures of the external cutting member each having the second cutting edge for cooperation with at least one of the first cutting edges of the internal cutting member is at least 80. 3. A personal care device according to claim 1, wherein the percentage of all the hair-entry apertures of the external cutting member each having the second cutting edge for cooperation with at least one of the first cutting edges of the internal cutting member is 100. 4. A personal care device according to claim 1, wherein the percentage of at least 60 of all the hair-entry apertures of the external cutting member each having the second cutting edge for cooperation with at least one of the first cutting edges of the internal cutting member, in each cutting position of the virtual cylindrical hair in the hair-entry aperture the first contact position is closer to the virtual skin plane than the second contact position in said starting position, andwherein the virtual cylindrical hair extends perpendicularly to the virtual skin plane. 5. A personal care device according to claim 1, wherein the internal cutting member is rotatable relative to the external cutting member about a central axis of the cutting unit, andwherein the virtual skin plane extends perpendicularly to the central axis. 6. A personal care device according to claim 1, wherein at least one of the hair-entry apertures is bounded by the second cutting edge and an opposite edge, andwherein near a first end of the hair-entry aperture the second cutting edge and the opposite edge are connected to each other by a curved part, whilst near a second end of the hair-entry aperture on a side remote from the curved part the hair-entry aperture is open. 7. A personal care device according to claim 1, wherein at least one of the hair-entry apertures is bounded by the second cutting edge and an opposite edge,wherein near a first end of the hair-entry aperture the second cutting edge and the opposite edge are connected to each other by a curved part, whilst near a second end of the hair-entry aperture on a side remote from the curved part the hair-entry aperture is open,wherein the second cutting edge includes a first cutting part and a second cutting part connected to the first cutting part,wherein the first cutting part is located closer to the central axis than the second cutting part,wherein a shearing angle enclosed between the first cutting part and the direction of movement is smaller than a shearing angle enclosed by the second cutting part and the direction of movement, andwherein the first and second inclination angles, the first shearing angle and the shearing angle of the first cutting part are selected such that, in a starting position of cutting said virtual cylindrical hair in a position between the first cutting edge and the first cutting part of the second cutting edge, said first contact position is closer to the virtual skin plane than said second contact position. 8. A personal care device according to claim 1, wherein the first and second inclination angles are between 5 and 30 degrees. 9. A cutting unit for a personal care device according to claim 1.
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이 특허에 인용된 특허 (3)
Uchiyama Hiromi (Matsumoto JPX) Nakano Tsuyoshi (Matsumoto JPX), Fixing structure of blade force up spring for clothes shaver and electric shaver.
Dona Marinus J. J. (Eindhoven NLX) Franken Adrianus J. J. (Maarheeze NLX) Haes Freddy (Eindhoven NLX) Reynhout Cornelis M. (Eindhoven NLX), Shaving unit.
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