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91. 发明专利

JP2001252902A WORKING MACHINE HAVING CENTRIFUGAL CLUTCH 失效
公开(公告)号：JP2001252902A
公开(公告)日：2001-09-18
申请号：JP2001000174
申请日：2001-01-04
申请人： STIHL MASCHF ANDREAS
发明人： MENZEL JOHANNES , AMEND HELMAR
IPC分类号： B25F5/00 , B27B17/00 , B27B17/10 , F16F15/133
摘要： PROBLEM TO BE SOLVED: To increase the convenience of the work in a manual working machine such as a power chainsaw, a cutting-grinding machine, a weed cutter, wherein an internal combustion engine (1) provided in a casing (2) drives a tool (4) of the working machine through a centrifugal clutch (3), the centrifugal clutch (3) comprises a driven carrier (5) having a centrifugal weight (6) which can be adjusted depending on the number of revolutions, the centrifugal weight (6) can be connected to a connecting wall section (7) of a section (8) to be driven by a torque transmission system while resisting the returning force, and the carrier (5) having the centrifugal weight (6) is located in a clutch bell- shape body (9). SOLUTION: Between an intermediate element (10) which is bonded to the tool (4) in a manner to be unable to relatively rotate, an attenuating member (11) which is flexible to the rotation is arranged.

92. 发明专利

JP2001116074A VIBRATION CONTROL DEVICE 失效
公开(公告)号：JP2001116074A
公开(公告)日：2001-04-27
申请号：JP2000275359
申请日：2000-09-11
申请人： STIHL MASCHF ANDREAS
发明人： ZIMMERMANN HELMUT , KARL HEINZ KLOEPFER , OTTERBACH HORST , UHL KLAUS-MARTIN , BERNHARD DUERR , WOLF GUENTER , RABIS MANFRED , HELFEN REBEKKA
IPC分类号： B25F5/00 , B27B17/00 , F16F1/12 , F16F7/00 , F16F15/067
摘要： PROBLEM TO BE SOLVED: To improve so as to be flxable many times without causing a twist between shock absorbing object parts in a shock absorber of a work machine. SOLUTION: A coil spring 5 can be installed between parts 3, 4 from one end part 20 among its both end parts, and rotary motion acting in the circumferential direction of the coil spring 5 is shape-restrictively checked in at least one end part 20 among both end parts fixed by a fixing element 30.

93. 发明专利

JP2001082251A DIAPHRAGM CARBURETOR 失效
公开(公告)号：JP2001082251A
公开(公告)日：2001-03-27
申请号：JP2000259191
申请日：2000-08-29
申请人： STIHL MASCHF ANDREAS
发明人： GERHARDY REINHARD
IPC分类号： F02M1/10 , F02M1/16 , F02M3/10 , F02M3/12 , F02M17/04
摘要： PROBLEM TO BE SOLVED: To assure a reliable start of a combustion engine by a simple operation of a diaphragm carburetor for the combustion engine used as a drive unit for a manual operation type working machine such as a power chain saw. SOLUTION: A displacement piston 21 is guided in the longitudinal direction within a cylinder 22 and forms a pump space 24. The pump space 24 is connected to a supply part 18 of suction ports 16, 17 through a injection passage 30. A piston stroke of the displacement piston 21 is restricted by a stopper 26. The stopper 26 is adjusted by an adjusting element 23 in the stroke direction 31 depending on a temperature.

94. 发明专利

JP2001073793A MANUAL-OPERATED WORK MACHINE 失效
公开(公告)号：JP2001073793A
公开(公告)日：2001-03-21
申请号：JP2000238474
申请日：2000-08-07
申请人： STIHL MASCHF ANDREAS
发明人： KLAUS PURAHHA
IPC分类号： F02B63/00 , A47L5/14 , A47L5/24 , A47L9/28 , A47L9/32 , F02B63/06 , F02P15/00 , H05F3/02
摘要： PROBLEM TO BE SOLVED: To prevent electro-static charge of handle by arranging earthing element conductively connected with electric earthing part. SOLUTION: An adjusting element 8 shaped like an accel lever is provided with a handle 5 made of electrically insulated material. The adjusting element is constructed as 'Bowden Wire' 11 to drive needle valve 13 through adjusting lever, and is connected with bearing shaft of needle valve 3 through transmission part 7 fitted inside the handle. Further, an earthing element 6 is arranged on the surface of the handle. The earthing element 6 is connected conductively with an electric earthing part 4 through the transmission part 7 and the needle valve 3. The handle 5 consists of two half-shell parts 14 made of synthetic materials and diecasted. Thus, since the earthing element 6 surrounds the handle, they come to contact with each other when the handle 5 is gripped, and an electric connection by hand to the electric earthing part 4, securing the derivation of electro-static charge to earth.

95. 发明专利

JP2000314350A DIAPHRAGM CARBURETER OF INTERNAL COMBUSTION ENGINE OPERATED BY STRATIFIED SCAVENGING 失效
公开(公告)号：JP2000314350A
公开(公告)日：2000-11-14
申请号：JP2000121241
申请日：2000-04-21
申请人： STIHL MASCHF ANDREAS
发明人： GERHARDY REINHARD
IPC分类号： F02M19/00 , F02B25/20 , F02M13/02 , F02M17/04
摘要： PROBLEM TO BE SOLVED: To shorten the length of a structure and minify its volume, in the diaphragm carbureter of an internal combustion engine operated by a stratified scavenging. SOLUTION: An assembled portion 18 is fixed to a carbureter casing 3 at a longitudinal side 13 of a suction pipe road portion 4 and forms the operation portion of a diaphragm carbureter 1. An air pipe road 15 is extended from an air filter 16 side end surface 20 of the diaphragm carbureter 1 to a continuous end surface 21 of an internal combustion engine 2 side nearly in parallel with the suction pipe road portion 4. A shaft 24 of a throttle mechanism 14 is combined with a shaft 7 of a throttle valve 6 mutually through a transmission combination part 40.

96. 发明专利

JP2000308406A WORKING MACHINE DRIVEN BY MOTOR 失效
公开(公告)号：JP2000308406A
公开(公告)日：2000-11-07
申请号：JP2000104868
申请日：2000-04-06
申请人： STIHL MASCHF ANDREAS
发明人： WEISSERT WOLFGANG , STEHLE HANS P
IPC分类号： A01D34/67 , A01D34/68 , A01D34/90
摘要： PROBLEM TO BE SOLVED: To provide the subject working machine capable of reducing its weight, comprising a driving shaft including a hollow shaft as a main body by making the hollow shaft support a specific connection member. SOLUTION: This working machine has a driving motor for rotating and driving a working tool 5 through a hard driving shaft 4 installed in a guide pipe. The working machine has a joint connection part in which the free end 21 of the driving shaft 4 acts in a shape restriction manner. The driving shaft 4 includes a hollow shaft 7 as a main body. The hollow shaft 7 supports a connection member 6 for forming the joint connection part at the end part 20 of the hollow shaft. In the operation, preferably the hollow shaft 7 is made of a lightweight material, especially aluminum, an aluminum alloy or a fiber- reinforced plastic and the connection member 6 is made of an abrasion-resistant material.

97. 发明专利

JP2000257523A VENT VALVE FOR FUEL TANK 失效
公开(公告)号：JP2000257523A
公开(公告)日：2000-09-19
申请号：JP2000017251
申请日：2000-01-26
申请人： STIHL MASCHF ANDREAS
发明人： NICKEL HANS
IPC分类号： B60K15/035 , F02M37/00 , F02M37/20 , F16K24/00 , F16K31/126
摘要： PROBLEM TO BE SOLVED: To enable ventilation while opening under small negative pressure, and surely close a valve without mechanical excessive load at the time of overpressure by controlling a valve member through a film on which pressure in a fuel tank is acted. SOLUTION: Reciprocating motion of a valve tappet 5 is linked to a vibration of a film 6 through a valve lever 10. When negative pressure to an atmosphere exists in a control chamber 7, in a film 6, a capacity of the control chamber 7 is reduced, a position is vibrated, and the valve lever 10 is pushed down against return force of a coil spring by a film disk 9 mounted on the valve lever 10. In this time, the valve tappet 5 is separated from a valve seat 12 through the valve lever 10, and fluid connection between a ventilation conduit 8 and a fuel tank 2 is released. When pressure between the control chamber 7 and a circumferential pressure is balanced by ventilation of the fuel tank 2, the valve tappet 5 is pushed to a closing position by the coil spring 13, and a closing member 11 is pushed on the valve seat 12. It is thus possible to carry out ventilation having a good condition with pressure of the fuel tank 2.

98. 发明专利

JP2000253727A WORKING MACHINE 失效
公开(公告)号：JP2000253727A
公开(公告)日：2000-09-19
申请号：JP2000046209
申请日：2000-02-23
申请人： STIHL MASCHF ANDREAS
发明人： PETER LINSBAUER
IPC分类号： A01D34/68 , A01D34/90
摘要： PROBLEM TO BE SOLVED: To obtain a working machine capable of ensuring a fitting without any gap of a bearing in an end region with a simple construction by providing a specific axial direction rib on an outer covering face of a bearing. SOLUTION: This working machine has a driving motor driving a working tool rotating through a driving shaft fitted in a guiding pipe and the working tool is located in an end region 6 at an opposite side of the driving motor in the guiding pipe with a bearing 16, then in the case that the bearing 16 is pushed in the end part region 6 in the axial direction and kept in the end part region 6 not to be lost. In the working machine, several axially directed ribs 19 and 21 are provided at an outer side covering face 18 of the bearing 16 and their rib tip sides form a virtual cylinder outer wall, then an outer diameter of the outer wall is larger than an inner diameter of not-deformed end part region, thus the end part region 6 is elastically deformed to a shape corresponding to a cross section shape of the bearing 18 and frictionally surrounds the bearing 16.

99. 发明专利

JP2000107936A CUTTING UNIT FOR POWER CHAIN SAW 失效
公开(公告)号：JP2000107936A
公开(公告)日：2000-04-18
申请号：JP27307499
申请日：1999-09-27
申请人： STIHL MASCHF ANDREAS
发明人： NITSCHMANN KARL
IPC分类号： B23D57/02 , B27B33/14
摘要： PROBLEM TO BE SOLVED: To provide a sufficiently uniform large cutting force and to surely carry out chips by situating a cutting tip with a side space to a preceding cutting tip in the direction crossing to chain vertical direction, and moving it after the preceding cutting tip. SOLUTION: A side blade 22 and the part 23a of a roof blade 23 are connected to each other in the mutual transfer part. In the transfer part, a cutting tip part 25 preceding in chain traveling direction is formed. The other cutting tip part 125 is formed on the roof blade 23 with a side space (a) to the chain vertical direction. Accordingly, a cutting edge 29 has the preceding cutting tip part 25 and the succeeding cutting tip part 125. The succeeding cutting tip part 125 is advantageously provided on the side surface 35 of a vertical groove 36 formed on a cutting tooth roof part 24 to divide the cutting tooth roof part to two parts.

100. 发明专利

JP2000102901A SAW CHAIN FOR POWER CHAIN 失效
公开(公告)号：JP2000102901A
公开(公告)日：2000-04-11
申请号：JP26873299
申请日：1999-09-22
申请人： STIHL MASCHF ANDREAS
发明人： BUCHHOLTZ JOCHEN , ANDRES BERND
IPC分类号： B27B17/00 , B27B33/14
摘要： PROBLEM TO BE SOLVED: To obtain a large cutting powder with a simple constitution and a small feeding powder by forming asymmetrical recesses on a driving link disposed at an intermediate part of two coupling links. SOLUTION: A recess 18 and a deepest part of the recess at a transfer part 17c between a preceding edge 17a and a trailing edge 17b are disposed at positions for passing a central vertical line 19 of a connecting line 20 to be assumed between central points 21 of rivet holes 8, 9 in a feeding direction 7 or positions before the line 19. The edges 17a, 17b are rounded at different radii R2, R1. The edge 17a having the smaller radius R2 is disposed before the direction 7 of a chain, and the edges 17a, 17b are connected to one another with one roundness. The deepest part formed at the part 17c between the edges 17a and 17b is disposed in a cutting groove formed between a driving link 2 and a roof surface. Thus, the preceding edge having the larger radius is rounded in a protrusion manner so that cutting chips can be discharged without clogging.

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