摘要:
The present disclosure relates to a battery powered tool (1) extending in a longitudinal direction (Z), comprising a tool body (10) and a battery pack (20), which battery pack is arranged on the tool body and adapted to power the tool. The tool body is provided with a through aperture adapted to receive the battery pack, such that the tool body at least partly surrounds the battery pack.
摘要:
A hand-held cutting device (20) may include a working assembly (10), a power assembly (12), an elongated member (14), a control assembly (18), and an orientation adjustment assembly (16). The working assembly may include an electric motor (24) and may be positionable in a first orientation or a second orientation. The power assembly may include an electric power source (30), and an elongated member may extend between the working assembly and power assembly. The control assembly may be configured for selectively providing power from the power assembly to the working assembly via the electric motor. The orientation adjustment assembly may by disposed at a portion of the elongated member and may comprise a locked state in which the working assembly is fixed in the first orientation or the second orientation, and an unlocked state in which the working assembly in rotatable about a longitudinal axis defined by the elongated member between the first orientation and the second orientation.
摘要:
A blower (100) may include a housing (110), a blower tube (150), a fan assembly (160) and an eyelet (190). The housing (110) may include a handle portion (144) defining a handle aperture (145). The blower tube (150) may extend forward from the housing (110) and define a tube axis (152). The fan assembly (160) may be operably coupled to the blower tube (150) to force air through the blower tube (150) responsive to operation of a motor (120). The eyelet (190) may be disposed on a side portion of the housing (110) proximate to the handle aperture (145).
摘要:
A battery-powered portable tool, such as a chainsaw, hedge trimmer or handheld drill, comprising: a housing (1), a driven element (2) supported by the housing (1), an electric motor (6) coupled to the driven element (2) so as to drive the driven element (2), a battery (5) electrically coupled to the motor (6) so as to supply electric current to the motor (6) and a control circuit (8) arranged to control the supply of electric current to the motor (6) from the battery (5), in which the control circuit (8) comprises a main switch (8) operable by a user and an auxiliary switch (10, 11) also operable by a user; in which the control circuit (8) has: an active state in which operation of the main switch (8) by the user allows electric current to flow to the motor (6) so as to cause the driven element (2) to be driven; and an inactive state in which operation of the main switch (8) does not allow electric current to flow to the motor (6) and so the motor (6) does not drive the driven element (2); in which operation of the auxiliary switch (10, 11) causes the control circuit (8) to change between the active and inactive states; and in which the control circuit is further provided with indication means (30) arranged to provide an indication to a user whether the control circuit (8) is in the active or inactive mode. The indication may be by the means of light emitting devices (31, 32) or a speaker (33); user-uploadable sounds may be stored in a memory (34) of the tool to enable a user to customise the sound of their tool.
摘要:
A cylinder (1) for a crankcase scavenged two-stroke engine, comprising a cylinder bore (2) with centre line (12) and on opposite sides of the cylinder located closed transfer ducts (3, 3'), which cylinder (1) has an underside (4) essentially perpendicular towards the cylinder bore (2), intended to be connected to a crankcase (5) in a parting plane (A), and besides an inlet (8) for air/fuel mixture, the cylinder is provided with at least one inlet (9, 9' ) for additional air to the combustion chamber, which inlet for additional air runs through a cylinder wall (11) and via a recess in the piston and a transfer port (6, 6') leads down into the transfer ducts (3, 3'). Especially the transfer ducts (3,3') each have an upper section (3a, 3a') leading from the transfer port (6, 6') and in a tangential direction in relation to the cylinder bore (2) and is followed by an essentially right angled bend (3b, 3b') leading into a lower section (3c, 3c') leading into the parting plane (A), and at least the right-angled bend of each transfer duct is located on opposite sides of an exhaust duct (7) and during at least a part of the right-angled bend (3b, 3b') the transfer ducts approach each other.
摘要:
This invention relates to a flexible intake system for a crankcase scavenged two-stroke internal combustion engine (10) having an additional air supply to its transfer ducts. The intake system comprises a flexible intake duct (22) connecting a fuel supply unit (21) e.g. a carburetor with an engine cylinder (11) and at least one flexible air duct (40) connecting a valve housing (42) for additional air with the engine cylinder. The end portion of the flexible intake duct (22) and at least one air duct (40) is secured to the cylinder by means of a baffle (23) made of a stiffer material than the ducts (22, 40) themselves.