Patent application number | Description | Published |
20080271698 | Internal Combustion Engine with Starter Device - An internal combustion engine has a starter device, wherein the starter device has a drive member and a driven member and a locking mechanism for coupling the drive member and the driven member to one another for starting the internal combustion engine. The locking mechanism has at least one pawl that is pivotably supported on the driven member. For decoupling the drive member and the driven member, the at least one pawl is pivoted outwardly relative to an axis of rotation of the starter device. The at least one pawl has at least one pivot position in which the at least one pawl contacts at least one contact area of the driven member. The at least one pawl has at least one cover covering the at least one contact area. | 11-06-2008 |
20080272268 | INTERNAL COMBUSTION ENGINE HAVING A CABLE RETAINER AND A CABLE RETAINER FOR AN INTERNAL COMBUSTION ENGINE - An internal combustion engine has a cylinder which has a cylinder longitudinal axis. The internal combustion engine has at least one cooling fin. In order to route the cable in a defined fashion so that the internal combustion engine can be arranged even in a constricted installation space, a cable retainer is provided which is arranged on at least one cooling fin of the internal combustion engine and which retains at least one cable. A cable retainer for securing at least one cable to an internal combustion engine has at least one receptacle for at least one cable and at least one means for positioning the cable retainer on the internal combustion engine. | 11-06-2008 |
20080276912 | Hand-Held Power Tool - A hand-held power tool has at least one operating medium tank having at least one opening. At least one connecting conduit is arranged external to the operating medium tank. At least one connecting member is inserted into the opening, wherein the at least one connecting conduit is connected to the at least one connecting member. Securing devices that secure a rotational position of the at least one connecting member in the opening are provided. | 11-13-2008 |
20090095497 | Hand-Guided Power Tool - A hand-guided power tool has a drive motor and a tool in driving connection with the drive motor. At least one handle is provided for guiding the power tool in operation. At least one antivibration element functionally connects the at least one handle and the drive motor. The at least one antivibration element has a coil spring and a guide, wherein the coil spring has an end connected to the guide. The coil spring has a first radial spacing relative to the guide in a first radial direction and has a second radial spacing relative to the guide in a second radial direction, wherein the second spacing is smaller than the first spacing or is zero. | 04-16-2009 |
20090294210 | Exhaust-gas muffler - An exhaust-gas muffler ( | 12-03-2009 |
20100229405 | Chain guard for a motor-driven chain saw - A chain guard for a motor-driven chain saw has a narrow casing with a front end and a back end. The casing has two parallel side walls and an upper wall and a lower wall connecting the side walls to each other. The casing is closed at the front end thereof and defines an opening at the back end. A device is provided on the casing for attaching the chain guard to the clothing of the operator, a rope, a carabiner or the like. | 09-16-2010 |
20110146643 | Two-Stroke Engine - A two-stroke engine has a cylinder with a combustion chamber and a piston reciprocatingly supported in the cylinder. A crankshaft is rotatably supported in a crankcase and driven by the piston. At least one transfer passage connects the crankcase in at least one position of the piston with the combustion chamber and has a piston-controlled transfer port that opens into the combustion chamber and an opening that opens into the crankcase. A mixture inlet opens into the crankcase. An outlet is provided at the combustion chamber. The transfer port and the opening are displaced relative to each other in a circumferential direction of the cylinder. At least one wall section of the transfer passage forms an undercut when viewed from the crankcase in a direction of a longitudinal cylinder axis of the cylinder and is delimited by a separate component inserted into the cylinder from a side facing the crankcase. | 06-23-2011 |
20130091715 | HANDHELD WORK APPARATUS HAVING A GUARD - A handheld work apparatus such as a stone cutter ( | 04-18-2013 |
20130269673 | Cutting chain for a hand-operated implement and hand-operated implement - A cutting chain for a hand-operated implement for cutting metal and mineral materials such as a stone cutter has central connecting links which are connected to one another by lateral connecting links. The central connecting links comprise first central connecting links which each have a drive tooth. The cutting chain has two central connecting links with drive teeth shaped differently to the drive teeth on the first central connecting links; or located a different distance from the leading drive teeth; or having no drive teeth. A hand-operated implement for cutting mineral materials has a drive motor which drives the cutting chain around a guide bar by a drive sprocket. The cutting chain is guided round part of the circumference of the drive sprocket and round a nose sprocket on the guide bar. The drive sprocket or nose sprocket have different first and second areas matched to the cutting chain. | 10-17-2013 |
20130276724 | WORK APPARATUS HAVING A FUEL PUMP - A work apparatus has an internal combustion engine for driving a work tool of the work apparatus and a fuel pump which is driven by the engine and delivers fuel from a fuel tank to the engine. The work apparatus has a feed pump which is to be actuated manually by the operator. The fuel pump and the feed pump form one component which is arranged outside the fuel tank. The fuel tank has a tank wall which delimits the tank interior. An advantageous arrangement arid satisfactory cooling of the component are achieved if the component is arranged at least partially on the tank wall. | 10-24-2013 |
20130318802 | Power tool with sprocket cover - A power tool has guide bar guiding a saw chain. A drive motor with a sprocket drives the saw chain. A sprocket compartment of the power tool housing has a peripheral wall adjacent to a roof of the saw chain and an ejection opening for cut material. The guide bar has a longitudinal center axis intersecting the saw chain in first and second deflection areas at the sprocket and the nose of the guide bar. The sprocket compartment has an exit opening where the saw chain exits. The peripheral wall of the sprocket compartment and the roof of the saw chain are disposed at a spacing relative to each other that, when the saw chain is standing still, is less than approximately 18 mm at least across 50% of a stretch from the first deflection area to the exit opening and across an entire saw chain width. | 12-05-2013 |
20130319392 | Hand-operated implement comprising a cutting chain for cutting mineral and metal materials - A hand-operated implement has a guide bar on which is fitted a cutting chain for cutting mineral and metal materials. The cutting chain is driven around the guide bar by a chain sprocket. The chain sprocket is arranged in a chain sprocket chamber which is delimited by a chain sprocket cover. A cutting element has an outer side facing a sidewall of the chain sprocket cover which lies in a first notional plane. The distance between the sidewall and the first notional plane measured perpendicular to the first notional plane and centrally between the top of the cutting element and the peripheral wall is less than approximately 0.8 cm over at least 30% of the section between a second notional plane containing the central axis of a fixing bolt on the guide bar and the exit opening at which the cutting chain leaves the chain sprocket chamber. | 12-05-2013 |
20140000542 | WORK APPARATUS HAVING A BRAKING ARRANGEMENT | 01-02-2014 |
20140250702 | HANDHELD WORK APPARATUS HAVING A TENSIONING DEVICE FOR A CHAIN - A handheld work apparatus has a guide bar having a periphery along which a chain runs. The work apparatus has a housing and a fastening arrangement for fixing the guide bar to the housing. The fastening arrangement has an actuating device which can be actuated in a fastening direction in order to fix the guide bar. The work apparatus has a tensioning device to tension the chain. The tensioning device includes a tensioning spring. When the fastening arrangement is loosened, the tensioning spring exerts a force in a tensioning direction of the chain on the guide bar. Simple operation and a simple construction are achieved if the tensioning spring is in operative connection with the actuating device and is tensioned during actuation of the actuating device in the fastening direction. | 09-11-2014 |