摘要:
A multi-service electrical outlet module which combines at a single outlet location, the outlets required for making connection to various electrical systems such as power, telephone, computer systems, television antenna etc.
摘要:
A fastener assembly for use in the blind fastening of first and second parts having aligned apertures extending therethrough with the aperture in the second part being larger than the aperture in the first part. A stud member with a screw threaded shank is adapted to be projected through the aligned apertures with the head being positioned on the outer side of the first part and being larger than the aperture in the first part. A threaded nut is adapted to be coupled with the shank and is smaller in diameter than the aperture in the second parts so it can be projected therethrough and to be located on the opposite side of the second part from the first part. A helical spring having a normal outer diameter larger than the aperture in the first part and smaller than the aperture in the second part is assembled around the stud in engagement with the nut. The spring is expandable to have a larger diameter. A second biasing spring is preloaded and bears against the under surface of the first part and the nut so that when the assembled shank portion of the stud and the springs and nut are inserted through the aperture in the second part a biasing force is applied to the nut substantially in an axial direction. Thereafter, upon rotation of the stud the nut is retained against rotation to permit axial movement thereof along the shank to apply a biasing force to the helical spring and expand the spring into engagement with the surface of the second part and retain the second part in fixed relation to the first part. The same biasing action will occur to permit relative rotation in loosening the fastener and permitting disassembly of the first and second part.
摘要:
A drilling apparatus has a housing, a motor in the housing, a drive spindle rotatable about an axis on the housing, a chuck body, and a plurality of jaws shiftable in the chuck body. First and second elements interconnected by a screw thread and engaged between the body and the jaws for shifting the jaws on the housing. A drive sleeve rotationally fixed to the first element is drivable by the motor.
摘要:
In an internal combustion engine, fuel is directly injected into at least one combustion chamber at least during a compression stroke in such a way that a stratified mixture is present in the combustion chamber. This mixture is then externally ignited. The fuel is introduced during the compression stroke by at least one main injection and an ignition injection, the ignition injection taking place immediately before an ignition and producing at least essentially no torque.
摘要:
The invention relates to a method of clamping a tool or a workpiece, using an electric actuator (1) having a housing (2) attached to a work spindle of a machine tool and in which a threaded spindle (3) for moving jaws of a chuck is axially displaceable, and an electric servomotor (4) having a rotor connected with a drive wheel (6) that moves a nut (7) on the threaded spindle (3), a first sensor being associated with the threaded spindle (3) for detecting the axial position thereof, and a second sensor being associated with the spindle nut (7) for detecting the axial position thereof, and including the method step of determining the position of the threaded spindle (3) by the first sensor when a slight axial force occurs due to contact of the clamping jaws with the tool or the workpiece, and continued movement of the spindle nut (7) until a specified sensor difference (12) between the first sensor and the second sensor is determined by the second sensor. The invention further relates to an apparatus for carrying out the method.
摘要:
A drill chuck has a chuck body, a holder body, and a front sleeve surrounding the bodies, with jaws between them. A ring of teeth on one of the bodies can be engaged by a pawl angularly fixed on the other of the bodies. When engaged, the pawl and the array of teeth allow rotate relative to the chuck body in a tightening direction but not in a loosening direction. Respective interengaging stops on the other body and on the front sleeve limit relative angular movement of the front sleeve on the other body between a pair of angularly offset end positions. A back control sleeve has a cam formation engageable with the pawl in only one of the end positions to hold the pawl in the freeing position. The pawl is biased by a spring in the other end position into the locking position.
摘要:
An exercise console is disclosed as including a housing and a display incorporated into the housing. The display is adapted to align substantially parallel to the top surface of the housing. A tilt mechanism connects the display to the housing and is operable by a user to tilt the display to a nonparallel angle with respect to the housing. In another aspect in accordance with the invention, the exercise console includes a substantially fixed array of buttons incorporated into the housing. The buttons provide to a user various input options which are selectable in a pre-determined sequence by operation of the buttons to program the exercise console. Various indicators are associated with the buttons and inform the user which input options are next available for selection after the user has selected one or more input options.
摘要:
The invention relates to a flat gasket with a gasket sheet having a plurality of passages. The gasket sheet comprises at least one first sheet metal layer which has at least on one side at least one elongate elevation with an elongate base formed out of the sheet metal layer. The base, under maximum stress occurring during installation of the gasket and in machine operation, is stable with respect to the height thereof in at least first longitudinal sections. The flat gasket is particularly useful for cases where machine part sealing surfaces between which the flat gasket is to be inserted do not have the component elasticity required for a reliable seal. The gasket sheet has at least one second sheet metal layer which has a height-elastic bead in the area of the base which, together with the base, forms a thickness-elastic area of the flat gasket.
摘要:
An exercise console is disclosed as including a housing and a display incorporated into the housing. The display is adapted to align substantially parallel to the top surface of the housing. A tilt mechanism connects the display to the housing and is operable by a user to tilt the display to a nonparallel angle with respect to the housing. In another aspect in accordance with the invention, the exercise console includes a substantially fixed array of buttons incorporated into the housing. The buttons provide to a user various input options which are selectable in a pre-determined sequence by operation of the buttons to program the exercise console. Various indicators are associated with the buttons and inform the user which input options are next available for selection after the user has selected one or more input options.
摘要:
A device and method for controlling an internal combustion engine (2) includes a charger (7) for increasing pressure of air supplied to the engine. IN addition, a catalyzer (10) for refining exhaust of the engine is provided. In dependence on the temperature of the catalyzer (10), the charger (7) is activated and the time point of the combustion is shifted in the direction of “late”.