A handheld work apparatus has a combustion engine with a cylinder. A removable cover is fixed via a closure. The closure includes a tensioning element rotatable about a rotational axis and, in the locked position of the closure, is supported on a tension contour. The closure has a damping element. The damping element is held on a section of the cylinder in the axial direction of the rotational axis. During rotation from unlocked into locked position, the tensioning element is moved by the tension contour in the axial direction of the rotational axis. In the locked position of the closure, the tensioning element clamps the section of the cylinder in the axial direction of the rotational axis between a first abutment and a second abutment of the damping element. In the unlocked position of the closure, the tensioning element is held on the damping element on the cylinder.

A sprocket arrangement (5) for a handheld power tool such as a saw, comprising a drive unit configured to rotate a drive shaft and cutting tool configured to be driven by the drive shaft (21) via the sprocket arrangement. The sprocket arrangement (5) comprises a gear (1) and at least one flexible element (6a, 6b) arranged such that the drive shaft (21) in the handheld power tool is resiliently connected to the cutting tool in the handheld power tool. A handheld power tool comprising a drive unit, a drive shaft, driving means, and a sprocket arrangement is also provided.

An electric power saw/cutter includes a rotatable saw structure, a rear handle with a switch/speed control, a front handle, and a drive unit for rotating the saw structure. The drive unit includes a saw structure drive arrangement to which the saw structure is attachable, a transmission for driving the saw drive arrangement, an electric motor for driving an input shaft of the transmission, and a support structure for holding/carrying the saw structure drive arrangement. The transmission and the electric motor may be characterized in that the front handle and the rear handle are directly connected to each other to form a handle unit, which unit is resiliently connected to the drive unit, so that vibrations from the saw blade and drive unit will be reduced in the handle unit.

Disclosed is a chainsaw capable of introducing outside air into a body casing by rotation of a cooling fan to adequately cool a control unit provided inside the body casing. The chainsaw is configured to cool a control unit provided inside a body casing by a cooling fan being rotated under driving of an electric motor, wherein a handle comprises a base portion through which the handle (30) is attached to the body casing, and a grip formed to extend from the base portion in such a manner as to be grippable by a worker; and an air inlet is formed in a counter wall of the body casing opposed to the base portion of the handle, and wherein the base portion is attached to the counter wall of the body casing to cover the air inlet in an air introduceable state.

A portable working machine including: a driving source; a main body including the driving source; a handle joined with the main body; a fixing portion provided to one of the main body or the handle; and a vibration-proofing mechanism including an elastic body, the handle joined with the main body with the vibration-proofing mechanism and the fixing portion interposed therebetween; wherein the elastic body of the vibration-proofing mechanism is fixed to a first side of the fixing portion, and a stopper portion configured to come into contact with the other of the main body or the handle to regulate a movement amount of the handle is provided at a second side of the fixing portion, which is opposite to the first side of the fixing portion.

A handheld work apparatus has a combustion engine with a cylinder. A removable cover is fixed via a closure. The closure includes a tensioning element rotatable about a rotational axis and, in the locked position of the closure, is supported on a tension contour. The closure has a damping element. The damping element is held on a section of the cylinder in the axial direction of the rotational axis. During rotation from unlocked into locked position, the tensioning element is moved by the tension contour in the axial direction of the rotational axis. In the locked position of the closure, the tensioning element clamps the section of the cylinder in the axial direction of the rotational axis between a first abutment and a second abutment of the damping element. In the unlocked position of the closure, the tensioning element is held on the damping element on the cylinder.

A work apparatus has a first and a second assembly. The second assembly is mounted movably in relation to the first assembly via at least one antivibration element. Formed between the first assembly and the second assembly is a vibration gap, which is bridged by the antivibration element. The work apparatus has a switch, for actuation by an operator, which includes a first contact element and a second contact element. When the switch is closed, the first contact element and the second contact element contact each other. When the switch is open, the first and second contact element do not establish an electrically conductive contact. The second contact element is part of the second assembly. The first contact element is part of the first assembly and, when the switch is closed, the first contact element and the second contact element bridge the vibration gap between the first and second assembly.

The invention relates to an electrical work apparatus including an apparatus housing having an electric motor for driving a work tool, a control unit for putting the electric motor into operation, a handle housing having at least one handle for guiding the work apparatus, and a receiving cavity, realized in the handle housing, having an insertion opening for a battery pack for operating the electric motor. For the purpose of decoupling the battery pack in respect of vibration, the handle housing, together with the receiving cavity for the battery pack, is decoupled from the apparatus housing via one and the same antivibration element. A vibration gap is realized between the apparatus housing and the handle housing, wherein the antivibration element at least partly bridges the vibration gap.

A handheld power tool (1) is disclosed comprising a tool (30) and an engine (10) configured to power the tool (30). The power tool (1) comprises a handle portion (4) and an engine portion (6) resiliently suspended to the handle portion (4). The power tool (1) has a void space (12, 12) between the handle portion (4) and the engine portion (6) extending along a separation plane (Sp). The separation plane (Sp) is transversal to a horizontal centre plane (Hcp) and to a vertical centre plane (Vcp) of the power tool (1). The power tool (1) comprises a control device (28) mounted to the handheld power tool (1) such that the angle (a1) between the separation plane (Sp) and one of two larger sides (s1, s1) of the control device (28) is less than 35 degrees or is less than 25 degrees.

A remotely powered cutting assembly includes a power unit that may be worn. A cutting unit is provided and the cutting unit may be manipulated thereby facilitating the cutting unit to cut objects. The cutting unit is in mechanical communication with the power unit. Thus, the cutting unit may inhibit hands from being exposed to vibration associated with the power unit thereby inhibiting development of carpal tunnel syndrome.