IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0914367
(2000-12-05)
|
우선권정보 |
DE-0063650 (1999-12-29) |
국제출원번호 |
PCT/DE00/04333
(2000-12-05)
|
국제공개번호 |
WO01/49465
(2001-12-07)
|
발명자
/ 주소 |
- Hermes, Christian
- Keusch, Siegfried
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
16 인용 특허 :
7 |
초록
▼
The chain tension of a motorized chainsaw ( 10 ) with a housing ( 12 ), a sprocket ( 22 ) mounted thereon, and a blade ( 14 ) that is aligned with this sprocket, which blade protrudes beyond the housing ( 12 ) and guides a saw chain ( 16 ) engaged with the sprocket ( 22 ) in a revolving manner, wher
The chain tension of a motorized chainsaw ( 10 ) with a housing ( 12 ), a sprocket ( 22 ) mounted thereon, and a blade ( 14 ) that is aligned with this sprocket, which blade protrudes beyond the housing ( 12 ) and guides a saw chain ( 16 ) engaged with the sprocket ( 22 ) in a revolving manner, where the blade ( 14 ) is mounted such that it can be adjusted by means of longitudinal displacement in relation to the housing ( 12 ) and/or the sprocket ( 22 ) by means of a chain tensioning device ( 28 ) and where the chain tensioning device ( 28 ) has a stop ( 32 ) that can be fixed to the blade ( 14 ) and a cam ( 30 ) that can be rotated by means of a rotational member ( 36, 38 ) can be adjusted in a more comfortable and reliable fashion by virtue of the fact that the cam ( 30 ) can be locked in a form-fitting and rotationally secure manner in relation to the housing ( 12 ) by way of the rotational member ( 36, 38 ).
대표청구항
▼
1. A motorized chainsaw ( 10 ) with a housing ( 12 ), a sprocket ( 22 ) mounted thereon, and a blade ( 14 ) aligned with the sprocket, which blade protrudes beyond the housing ( 12 ) and guides a saw chain ( 16 ) engaged with the sprocket ( 22 ) in a revolving manner, where the blade ( 14 ) is mount
1. A motorized chainsaw ( 10 ) with a housing ( 12 ), a sprocket ( 22 ) mounted thereon, and a blade ( 14 ) aligned with the sprocket, which blade protrudes beyond the housing ( 12 ) and guides a saw chain ( 16 ) engaged with the sprocket ( 22 ) in a revolving manner, where the blade ( 14 ) is mounted such that it is adjustable by means of longitudinal displacement in relation to an element selected from the group consisting of the housing ( 12 ) and the sprocket ( 22 ) by means of a chain tensioning device ( 28 ) and where the chain tensioning device ( 28 ) has a stop ( 32 ) that is fixable to the blade ( 14 ) and a cam ( 30 ) that is rotatable by means of a rotational member ( 36 , 38 ), characterized in that the cam ( 30 ) is lockable in a form-fitting and non-rotational manner in relation to the housing ( 12 ) by means of the rotational member ( 36 , 38 ), that the rotational member ( 36 , 38 ) is comprised of two handwheels that nest one inside the other as an inner and outer handwheel and rotatable in relation to one another around a common axis, that the inner handwheel ( 38 ) is movable axially in relation to the housing ( 12 ) and is supported on the blade ( 14 ), and that the outer handwheel ( 36 ) is coupled to the cam ( 30 ) in a rotary driving manner. 2. The motorized chainsaw according to claim 1, characterized in that the cam ( 30 ) is mounted such that it is axially and elastically displaceable in relation to the housing ( 12 ) or the outer handwheel ( 36 ). 3. The motorized chainsaw according to claim 1, characterized in that the detent coupling ( 27 ; 46 ; 47 ) is embodied as a radial detent coupling and fixable in a form-fitting fashion by means of the inner handwheel ( 38 ). 4. The motorized chainsaw according to claim 1, characterized in that the inner handwheel ( 38 ) is detachably coupled to the outer handwheel ( 36 ) by way of an axial detent coupling ( 41 , 42 , 44 ). 5. The motorized chainsaw according to claim 1, characterized in that spring means ( 40 ) disposed between the inner handwheel ( 38 ) and the outer handwheel ( 36 ), seek to push these handwheels away from each other in the axial direction. 6. The motorized chainsaw according to claim 1, characterized in that spring means ( 48 ) disposed between the cam ( 30 ) and the inner handwheel ( 38 ), seek to push these parts away from each other in the axial direction. 7. A chain tensioning device for a motorized chainsaw ( 10 ) according to claim 1, characterized in that a stop plate forms the stop ( 32 ) for changing the cam ( 30 ), which stop plate is fastened to the blade, is embodied in the shape of an elongated ring. 8. A motorized chainsaw ( 10 ) with a housing ( 12 ), a sprocket ( 22 ) mounted thereon, and a blade ( 14 ) aligned with the sprocket, which blade protrudes beyond the housing ( 12 ) and guides a saw chain ( 16 ) engaged with the sprocket ( 22 ) in a revolving manner, where the blade ( 14 ) is mounted such that it is adjustable by means of longitudinal displacement in relation to an element selected from the group consisting of the housing ( 12 ) and the sprocket ( 22 ) by means of a chain tensioning device ( 28 ) and where the chain tensioning device ( 28 ) has a stop ( 32 ) that is fixable to the blade ( 14 ) and a cam ( 30 ) that is rotatable by means of a rotational member ( 36 , 38 ), characterized in that the cam ( 30 ) is lockable in a form-fitting and non-rotational manner in relation to the housing ( 12 ) by means of the rotational member ( 36 , 38 ) comprising two handwheels that nest one inside the other as an inner and outer handwheel and rotatable in relation to one another around a common axis, and that a detent coupling ( 27 ; 46 ; 47 ) couples the outer handwheel ( 36 ), in relation to an element selected from the group consisting of the housing ( 12 ) and a sprocket cover ( 26 ).
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