摘要:
On a drill stand, a drilling member is movable between an inactive position spaced from the material to be drilled and an active position in contact with the material to be drilled. A marking element is mounted on the stand and is slidably movable between a retracted position and a marking position. In the marking position, a pointer on the element can mark the drilling axis on the material to be drilled. With the drilling axis located, the drilling member can be moved into the active position to commence drilling.
摘要:
In a device for the melting and measured discharge of a thermoplastic adhesive material, a melting chamber is enclosed by a heating coil. The adhesive material in solid rod form is supplied into the melting chamber through a sealing sleeve formed of a material such as polytetrafluoroethylene (TEFLON). A heating element is mounted on the bearing sleeve adjacent the melting chamber to heat up the sleeve and the material within it to a desired temperature. A switch or other member is connected to the heating element on the sleeve for discontinuing its supply of heat to the sleeve when the desired temperature is reached. The part of the sealing sleeve on the opposite side of the heating element from the melting chamber can be provided with some structure to dissipate or block the flow of heat through the sealing sleeve away from the melting chamber.
摘要:
A hand-held power tool includes a vibration-compensating mass (3, 3′) secured on the tool housing and having at least one rigid compensation mass (4, 4′, 4″) oscillating along an oscillation axis (A), formed of a plurality of fixedly connected with each other mass components (12, 12′, 12″), and supported relative to the housing (2), by at least one spring (5).
摘要:
A quick-acting closure (1) for connecting a mixer tube (3) and a connecting part (2) of an extruder unit. The connecting part (2) has a connector (9) with a conical threaded base member, on which an external thread (12) is arranged. The mixer tube (3) has a conical threaded base member, on which an internal thread (19) is arranged. The internal thread (19) on the connector part (16) of the mixer tube (3) is a multi-path internal thread.
摘要:
An anchor rod for use as a composite anchor is secured in a receiving borehole by one of a hardenable or curable organic and inorganic mortar mass. The anchor rod has a means (3) at a trailing end region (2) for engaging a load. The anchor rod has an anchoring region (4) insertable into the receiving borehole and has a thread-like profiling (5) for interaction with the mortar mass injected into the receiving borehole. The thread-like profiling is a coarse screw thread (5) and has a thread pitch (s) which reduces in the axial direction from the leading end toward the trailing end of the anchor rod (1).
摘要:
A cartridge for use in an extension tool is arranged to receive one or more foil bags containing a single component or a multi-component mass and is formed of a cylinder (3) defining one or more receiving chambers (13) open at the opposite ends thereof. An axially displaceable piston (5) has opposite end faces (5b, 5c) extending across the cylinder (3) and each end face is symmetrical about its axis. The end faces of the piston can be used alternately for dispensing the mass out of the one or more foil bags.
摘要:
In a device for the melting and measured discharge of a thermoplastic adhesive, a sealing sleeve conveys the solid thermoplastic adhesive into the inlet end of a melting chamber. The sealing sleeve is formed of a temperature resistant, poor heat conductive material with good sliding properties, such as polytetrafluoroethylene. Further, the sealing sleeve is provided with slots extending in the axial direction of the sleeve from the end more remote from the melting chamber toward the melting chamber.
摘要:
In a device for melting a body of a solid thermoplastic adhesive material, a melting chamber is positioned within a housing and a feed apparatus moves the solid body in a step-wise fashion through the housing into the chamber. The feed apparatus includes a slidable carriage with a pair of separate clamping jaws within the carriage. A rocker lever is pivotally mounted on the housing and is articulated to the clamping jaws. When a trigger or pushbutton on the housing is pressed inwardly, it pivots the rocker arm and initially displaces the clamping jaws inwardly into clamping contact with the solid body and then moves the carriage, the clamping jaws and the clamping body toward the melting chamber.
摘要:
An expansion dowel includes a sleeve-shaped dowel body (12) having a first dowel part (21; 61) and at least one second dowel part (31; 71) axially adjoining the first dowel part (21; 61), and at least one snap connection device (41; 81) for connecting the first (21; 61) and second (31; 71) dowel parts together and having an engagement element (42) provided on one of the first and second dowel parts (31; 71) and a receiving element (47) for the engagement element (42) and provided on another of the first and second dowel parts (21; 61).
摘要:
A self-cutting dowel including a dowel rod (2) having a head portion (3) which widens in a setting direction (S), and a sleeve (5) displaceable along the dowel rod (2) and having, at its end adjacent to the head portion (3) a plurality of expansion tabs (7) separated by longitudinal slots (6), with the sleeve (5) being displaceable onto the head portion (3) upon radial expansion of the expansion tabs (7), and with the sleeve (5) being displaceable onto the head portion (3) upon radial expansion of the expansion tabs (7), and with the sleeve (5) being provided with at least one cutter (10) for forming an under cut in a ground during a dowel setting process upon rotation of the sleeve (5), the at least one cutter (10) being provided on a leading, in a rotational direction (R), longitudinal edge (11) of one of the expansion tabs (7) and extending at least along a portion of the axial extent of the one expansion tab.