摘要:
A chair, in particular a work or office chair, having a backrest rod adjustable in inclination with respect to a seat and a backrest slidable thereon, which can be displaced with an adjustment device when the backrest rod is tilted backward in the direction of the seat. The adjustment device has a single knee lever which is pivotally seated around a horizontal pivot axis on a bracket supporting the seat or on a seat support on the bracket. The tilt of the bracket or the seat support can be adjusted. An extension of the backrest is flexibly connected with one end of the arm of the knee lever. One end of another lever arm of the knee lever is pivotal with a retaining bolt of the backrest rod or the seat support in such a way that during backward tilt of the backrest rod or lowering of the seat support, the one lever arm of the knee lever displaces the extension and the backrest in a direction toward the bracket or the seat support.
摘要:
A quick-action chuck, in particular for a power tool, has an actuating element (20) and a control device which includes at least one mechanism (12, 22, 36, 42, 50) for controlling at least one locking device (10) that serves to absorb a chucking reinforcement force via the locking device (10) that is controllable by the control device, a positive-engagement connection can be brought about for absorbing the chucking reinforcement force.
摘要:
A power scroll saw with a housing and a saw blade capable of being driven in a reciprocating manner, and with tongs-like guides that guide the saw blade in a laterally-supported manner is capable of being used in a variety of work applications due to the fact that the guide means are capable of being switched by hand selectively into a position having lateral clearance from the saw blade and into a position in which they laterally support the saw blade.
摘要:
A hand-guided saber saw, has a drive unit by way of which a tool, in particular a saw blade, can be driven, and with a tool guide mechanism, by way of which the tool can be guided laterally by guide elements, and the tool guide mechanism has a control motor, by way of which a spacing between the guide elements can be adjusted to a tool thickness, and the tool guide mechanism has pivot arms, connected via a joint, on which arms the guide elements are disposed.
摘要:
A dust and chip removal device for sanding hand power tools has a storage container securable to a hand power tool, a transport channel via which dust and chips are directed into the storage container, a retaining element preventing the dust and chips from flowing back out of the storage container, the retaining element having at least one passage, an elastic element which has a holding force closing the at least one passage, the passage being openable automatically against the holding force at starting at a certain delivery pressure, while the elastic element automatically closes the passage below a certain delivery pressure, and a channel having cross-sectional area which tapers toward the passage.
摘要:
In a hot air hand welding device having a plastic housing (1,3,6) which forms a rod-like grip portion (1) provided with air inlet openings and in which a commutator motor (18) is secured for the drive of a blower wheel (23) that is surrounded by a section (3) of the housing (1,3,6) that adjoins the grip (1) and has a larger diameter, the blower wheel (23) is arranged adjacent to the commutator (20) of the commutator motor (18). In addition the commutator (20) as well as the carbon brushes that contact it, together with the associated brush holders (21), are arranged in the section (3) of the housing surrounding the blower wheel (23).
摘要:
A screw strip for holding a row of parallel screws is formed of a flexible plastic material with sleeves which either only partially surround the screws, or have different wall thicknesses on different sides of the screws. The ribs interconnecting the sleeves have wall thicknesses less than the outer diameters of the screw threads. In a method for forming the screw strip, a plastic material is extruded only on one side of the threads of a row of screws, and it is then pressed by means of grooved rollers to be formed into the sleeves which only partially surround the screws.
摘要:
The invention relates to a device for cleaning vehicle wheels that contains a rotary body driven rotationally by a drive motor about a central axis, with cleaning elements arranged on its front end face. An improved cleaning can be achieved by virtue of the fact that the rotary body contains at least one rotary plate equipped with additional cleaning elements that is rotated by the rotation of the rotary body, not only about the central axis but also, via a gear assembly, about its own longitudinal axis.
摘要:
An adjustable mechanical screwdriver, having a receiving housing, gear housing and a deflection bevel gear. A small structural size is achieved because the driveshaft protrudes with a bearing shoulder at the drive bevel gear in a direction of the bearing shaft, which is inserted into and rotatably seated in a bearing bore of the bearing shaft. The gear housing having the deflection bevel gear and the power take-off shaft with the power take-off bevel gear is pivotable on the bearing shaft. The receiving housing receives the bearing shaft so that it cannot be rotated.
摘要:
The chain tension of a motorized chainsaw (10) with a housing (12), a sprocket (22) mounted thereon, and a blade (14) that is aligned with this sprocket, which blade protrudes beyond the housing (12) and guides a saw chain (16) engaged with the sprocket (22) in a revolving manner, where the blade (14) is mounted such that it can be adjusted by means of longitudinal displacement in relation to the housing (12) and/or the sprocket (22) by means of a chain tensioning device (28) and where the chain tensioning device (28) has a stop (32) that can be fixed to the blade (14) and a cam (30) that can be rotated by means of a rotational member (36, 38) can be adjusted in a more comfortable and reliable fashion by virtue of the fact that the cam (30) can be locked in a form-fitting and rotationally secure manner in relation to the housing (12) by way of the rotational member (36, 38).