Chain saw chain tensioning and braking system
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B23B-017/02
B23D-057/02
B23D-057/00
출원번호
US-0984652
(2004-11-10)
등록번호
US-7412769
(2008-08-19)
발명자
/ 주소
King,William C.
출원인 / 주소
King,William C.
대리인 / 주소
Welch,James D.
인용정보
피인용 횟수 :
0인용 특허 :
16
초록
Disclosed is a chain saw which includes chain saw chain tensioning and braking systems. Tensioning and braking are effected by the presence and control of longitudinal slits in an elongated support which provides a continuous chain channel guide in its outer circumference.
대표청구항▼
I claim: 1. A chain saw comprising a housing, a chain comprised of links which include chain link mating elements and cutters, and an elongated support extending outward from inside said housing, in the outer surface of said elongated support there being present a continuous chain channel guide int
I claim: 1. A chain saw comprising a housing, a chain comprised of links which include chain link mating elements and cutters, and an elongated support extending outward from inside said housing, in the outer surface of said elongated support there being present a continuous chain channel guide into which said chain link mating elements are slideably inserted, such that during normal operation said chain link mating elements slide essentially freely through said continuous chain channel guide when forced to do so; said elongated support being comprised of at least two portions which are pivotally interconnected to one another, said at least two portions providing at least one slit therebetween in a longitudinal direction, such that an upper one of the portions and a lower one of the portions above and below said longitudinal slit, respectively, can be laterally separated from one another at least at one location along the longitudinal extent of said slit, said longitudinal slit enabling separation of the upper and lower portions of said elongated support, and thereby causing tensioning and/or braking of said chain; wherein one of said at least two portions has a pin affixed thereto; said chain saw further comprising control means for applying force between said upper and lower portions of the elongated support, said control means comprising a control element having at least one guide therein, said pin being inserted into said guide which is of a shape such that in use rotation of said control element causes said pin, and hence said portion on one side of said longitudinal slit to which said pin is affixed, to move with respect to another of said at least two portions on an opposite side of said longitudinal slit. 2. A chain saw as in claim 1, in which said at least one longitudinal slit comprises an effective projection on one of said upper and lower portions and an effective groove present in the other of said upper and lower portions, said effective projection and effective groove being functionally oriented with respect to one another such that said effective projection inserts into said effective groove at locations along said at least one longitudinal slit whereat said upper and lower portions of the elongated support contact one another, said effective projection being of a first color proximally and of a second color peripherally. 3. A chain saw comprising a housing, a chain comprised of links which include chain link mating elements and cutters, and an elongated support extending outward from inside said housing, in the outer surface of said elongated support there being present a continuous chain channel guide into which said chain link mating elements are slideably inserted, such that during normal operation said chain link mating elements slide essentially freely through said continuous chain channel guide when forced to do so; said elongated support being comprised of a central element which distally comprises upper and lower sockets into which are pivotally inserted upper and lower elongated support portions, said upper and lower elongated support portions providing slits in a longitudinal direction with respect to said central element, such that said upper and lower elongated support portions above and below said longitudinal slits can be laterally separated from said central element at least at one location along the longitudinal extent of said slits, said longitudinal slits enabling separation of the upper and lower portions of said elongated support, and thereby causing tensioning and/or braking of said chain; wherein said upper and lower elongated support portions each have a pin affixed thereto; said chain saw further comprising control means for applying force between said upper and lower portions of the elongated support, said control means comprising a control element having at least two guides therein, said pins affixed to said upper and lower elongated support portions each being inserted into a corresponding one of said guides, said guides being of a shape such that in use rotation of said control element causes said pins, and hence said upper and lower elongated support portions to which they are affixed, to move with respect to the central element. 4. A chain saw as in claim 3, in which an effective projection is disposed on one of the group consisting of: said central element; and one of said upper and lower portions of the elongated support; and an effective groove is disposed in the other of said group consisting of: said one of said upper and lower portions of the elongated support; and said central element; said effective projection and said effective groove being functionally oriented with respect to one another such that said effective projection inserts into said effective groove at locations along said longitudinal slit whereat said central element and said one of said upper and lower portions of the elongated support contact one another, said effective projection being of a first color proximally and of a second color peripherally. 5. A chain saw comprising a housing and an elongated support extending outward from inside said housing, said elongated support operably supporting a saw chain and having at least two longitudinally oriented slits therein forming an upper elongated support portion, a lower elongated support portion and a central element therebetween, said at least two longitudinally oriented slits enabling said upper and lower portions above and below said longitudinal slits to be laterally separated from said central element at least at one location along the longitudinal extent of said slits; wherein said upper and lower portions each have a pin affixed thereto; said chain saw further comprising control means for applying force between said upper and lower portions of the elongated support; said control means comprising a control element having at least two control means guides therein, said pins affixed to said upper and lower portions each being inserted into a corresponding one of said control means guides, said control means guides being of a shape such that in use rotation of said control element causes said pins, and hence said upper and lower portions to which they are affixed, to move with respect to one another. 6. A chain saw as in claim 5 in which said central element of said elongated support is comprised of one selection from the group consisting of: a nose element formed as a part of said central element; and a nose element which is attached to said central element; said elongated support further comprising upper and lower sockets into which are rotatably inserted said upper and lower elongated support portions, said upper and lower elongated support portions providing said at least two slits in a longitudinal direction with respect to said central element, said longitudinal slits enabling separation of the upper and lower portions of said elongated support, and thereby causing tensioning and/or braking of said chain. 7. A chain saw as in claim 5, in which an effective projection is disposed on one of the group consisting of: said central element; and one of said upper and lower portion of the elongated support; and an effective groove is disposed in the other of said group consisting of: said one of said upper and lower portions of the elongated support; said central element; said effective projection and said effective groove being functionally oriented with respect to one another such that said effective projection inserts into said effective groove at locations along said longitudinal slit whereat said central element and said one of said upper and lower portions of the elongated support contact one another, said effective projection being of a first color proximally and of a second color peripherally. 8. A chain saw comprising a housing, a chain comprised of links which include chain link mating elements and cutters, and an elongated support extending outward from inside said housing, in the outer surface of said elongated support there being present a continuous chain channel guide into which said chain link mating elements are slideably inserted, such that during normal operation said chain link mating elements slide essentially freely through said continuous chain channel guide when forced to do so; said elongated support having at least two slits in a longitudinal direction forming an upper elongated support portion, a lower elongated support portion and a central element therebetween such that said upper and lower portions above and below said central element can be laterally separated from said central element at least at one location along the longitudinal extent of said slits, and thereby causing tensioning and/or braking of said chain; wherein one of said upper and lower portions of said elongated support has a pin affixed thereto; said chain saw further comprising control means for applying force between said one of said upper and lower portions of the elongated support to which said pin is attached and said central element; said control means comprising a control element having at least one guide therein, said pin affixed to said upper or lower portion being inserted into said guide, said guide being of a shape such that in use rotation of said control element causes said pin, and hence said upper or lower portion to which said pin is affixed to move with respect to the central element. 9. A chain saw as in claim 8, in which an effective projection is disposed on one of the group consisting of: said central element; and one of said upper and lower portions of the elongated support; and an effective groove is disposed in the other of said group consisting of: said one of said upper and lower portions of the elongated support; and said central element; said effective projection and said effective groove being functionally oriented with respect to one another such that said effective projection inserts into said effective groove at locations along said longitudinal slit whereat said central element and said one of said upper and lower portions of the elongated support contact one another, said effective projection being of a first color proximally and of a second color peripherally. 10. A chain saw comprising a housing, a chain comprised of links which include chain link mating elements and cutters, and an elongated support extending outward from inside said housing, in the outer surface of said elongated support there being present a continuous chain channel guide into which said chain link mating elements are slideably inserted, such that during normal operation said chain link mating elements slide essentially freely through said continuous chain channel guide when forced to do so; said elongated support being comprised of a central element which distally comprises an upper or lower socket, into which is rotatably inserted an upper or lower elongated support portion, respectively, said upper or lower elongated support portion providing a slit in a longitudinal direction with respect to said central element, such that said upper or lower elongated support portion above or below said longitudinal slit can be laterally separated from said central element at least at one location along the longitudinal extent of said slit, said longitudinal slit enabling separation of the upper or lower portion of said elongated support, and thereby causing tensioning and/or braking of said chain; wherein said upper or lower elongated support portion has a pin affixed thereto; said chain saw further comprising control means for applying force between said central element and said upper or lower portion of the elongated support, said control means comprising a control element having at least one guide therein, into which is inserted said pin, said guide being of a shape such that in use rotation of said control element causes said pin, and hence said upper or lower elongated support portion to which it is affixed, to move with respect to the central element. 11. A chain saw as in claim 10, in which an effective projection is disposed on one of the group consisting of: said central element; and said upper or lower portion of the elongated support; and an effective groove is disposed in the other of said group consisting of: said upper or lower portions of the elongated support; said central element; said effective projection and said effective groove being functionally oriented with respect to one another such that said effective projection inserts into said effective groove at locations along said longitudinal slit whereat said central element and said upper or lower portion of the elongated support contact one another, said effective projection being of a first color proximally and of a second color peripherally. 12. A chain saw comprising a housing, a chain comprised of links which include chain link mating elements and cutters, and an elongated support extending outward from inside said housing, in the outer surface of said elongated support there being present a continuous chain channel guide into which said chain link mating elements are slideably inserted, such that during normal operation said chain link mating elements slide essentially freely through said continuous chain channel guide when forced to do so; said chain saw being characterized in that said elongated support comprises multiple support elements, and a slit separating adjacent ones of said support elements, and said elongated support further comprises a distally located detachable nose element which comprises at least one socket into which rotatable attaches one of said support elements; wherein said rotatably attached support element has a pin affixed thereto; said chain saw further comprising control means for applying force between said rotatably attached support element and another of said support elements of the elongated support, said control means comprising a control element having at least one control means guide therein, into which is inserted said pin, said control means guide being of a shape such that in use rotation of said control element causes said pin, and the rotatably attached support element to which it is affixed, to move with respect to the at least said another support element. 13. A chain saw as in claim 12 in which said distally located nose element comprises two of said sockets into which are respectively rotatably mounted upper and lower ones of said support elements of said elongated support. 14. A chain saw as in claim 12 in which said at least one slit comprises an effective projection on one of said adjacent support elements thereof and an effective groove in the other of said adjacent support elements thereof, said effective projection and effective groove being functionally oriented with respect to one another such that said effective projection inserts into said effective groove at locations alone said longitudinal slit, wherein said effective projection and said effective groove are mated via one selection from the group consisting of: interlocking; and non-interlocking means. 15. A chain saw as in claim 11, in which said at least one slit is a longitudinal slit between said rotatably attached support element and an adjacent one of said support elements, said slit comprising an effective projection on one of said adjacent support elements thereof and an effective groove in the other of said adjacent support elements thereof, said effective projection and effective groove being functionally oriented with respect to one another such that said effective projection inserts into said effective groove at locations along said longitudinal slit whereat said adjacent support elements of the elongated support contact one another, said effective projection being of a first color proximally and of a second color peripherally. 16. A chain saw comprising a housing, a chain comprised of links which include chain link mating elements and cutters, and an elongated support extending outward from inside said housing, in the outer surface of said elongated support there being present a continuous chain channel guide into which said chain link mating elements are slideably inserted, such that during normal operation said chain link mating elements slide essentially freely through said continuous chain channel guide when forced to do so; said chain saw being characterized in that said elongated support is elongated in a longitudinal direction and comprises multiple support elements, a slit extending substantially in said longitudinal direction separating adjacent ones of said support elements, wherein at least one of said support elements is laterally movable with respect to another one of said support elements enabling said support elements to be laterally separated at least at one location along said longitudinal slit, and in that said chain saw further comprises a control means for applying force between two of said support elements; wherein at least one of said support elements has a pin affixed thereto for movement therewith; said control means comprising a control element having at least one control means guide therein, said pin being inserted into said control means guide and said control means guide being of a shape such that in use rotation of said control element causes said pin, and hence said at least one support element to which it is affixed, to move with respect to said another of said support elements. 17. A chain saw as in claim 16, in which there is present a longitudinal slit between said support element to which said pin is affixed and an adjacent support element, said slit comprising an effective projection on one of said adjacent support elements thereof and an effective groove in the other of said adjacent support elements thereof, said effective projection and effective groove being functionally oriented with respect to one another such that said effective projection inserts into said effective groove at locations along said longitudinal slit whereat said adjacent support elements of the elongated support contact one another, said effective projection being of a first color proximally and of a second color peripherally.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (16)
Frderer Karl (Schwaikheim DEX), Anti-vibration element.
Schliemann Harald (Waiblingen DEX) Krebs Rudolf (Backnang DEX) Geyer Werner (Waiblingen DEX) Nickel Hans (Cottenweiler DEX) Zimmermann Helmut (Kernen DEX), Tensioning arrangement for a saw chain.
Schliemann Harald (Waiblingen DEX) Geyer Werner (Waiblingen DEX) Zimmermann Helmut (Kernen i.R. DEX) Krebs Rudolf (Backnang DEX) Nickel Hans (Cottenweiler DEX), Tensioning arrangement for a saw chain of a motor-driven chain saw.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.