| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 161 | Device for control of an electric motor driving a moving object | US09240240 | 1999-01-30 | US06392374B1 | 2002-05-21 | Didier Menetrier; Norbert Dupielet |
| The control device includes a switch (12) controlling the power supply to the motor and an actuator which actuates this switch by rotatably reacting against the moving object being restrained so as to cause said switch to be opened and to cut off the power supply to the motor. This actuator consists of a bistable mechanical device (11) capable of taking up a first state in which the switch (12) is closed and a second state in which the switch is open. The actuating device also includes a cable (17) for putting the actuating device into its first state, this device being brought into its second state by reacting against the moving object. | ||||||
| 162 | Safety device for electrical openers for a vehicle | US87835 | 1993-07-02 | US5461826A | 1995-10-31 | Robert J. Heckel; Enrico Fin; Achim R. Gier; Pascal Bonduel |
| In a window lifter of the cable type, comprising a motor for driving the cable bearing a slide (6) linked to a second slide (7) supporting the window, the two slides (6, 7) may be coupled via an elastic tension element (16) and one (6) of the slides is fitted with an electrical switch (17), associated with the second slide (7) so as to change state when the load on the slide (7) carrying the window (8) exceeds a predetermined value and when the elastic element (16) undergoes an extension corresponding to the separation between the slides; the switch (17) forms part of an electrical supply circuit for the motor, capable of reversing its direction of rotation when this switch (17) changes state, so as to free the movable member from an obstacle in its path. This electromechanical safety device has a simple structure and a low manufacturing cost. | ||||||
| 163 | Dynamometer link | US904727 | 1992-06-26 | US5291793A | 1994-03-08 | Georges Roudavitch |
| A dynamometer link comprises a first transmission member adapted to slide axially relative to a second transmission member with spring means disposed between the first and second transmission members. Relative displacement of the two members is amplified by a lever pivotally mounted on one of the two members and on which the other member operates. The lever comprises at least a radial arm articulated to one of the members and comprising at a distance from the articulation a two-way axial coupling to the other member and an axial arm having a free end on respective sides of which are disposed two detector members. The link is able to determine the direction of the force transmitted by the link. | ||||||
| 164 | Combined locking mechanism and switch especially for power tools | US328324 | 1989-03-24 | US4934494A | 1990-06-19 | Fusao Fushiya; Akiharu Hayashi; Michio Okumura; Yukimi Amano; Yasumichi Fukuma; Shinya Hamazaki |
| A combined locking mechanism and switch especially for power tools has a switch, an actuator for directly turning on or off the switch, a locking member shiftable between a first position in which it is disposed in opposed relation to the actuator and a second position in which it is spaced apart form the actuator, and an actuating member for actuating the actuator through the locking member only when the locking member is placed in the first position. | ||||||
| 165 | Screen opening and closing drive device | US203569 | 1988-05-26 | US4845321A | 1989-07-04 | Susumu Miki |
| A screen opening and closing device comprising a connecting mechanism installed between a reversible motor and a pulley, wherein a pair of internal connecting elements are rotatably provided to rotate within a given range in a case, both the internal connecting elements being relatively movable as connected together in a given range with three switching positions to regulate their positions, and wherein switches are provided operable by the connecting elements so that normal and reverse operations of the motor are selectively controlled by the internal connecting elements to thereby control the opening an closing of the screen within selected limits. | ||||||
| 166 | Bi-directional self-resetting force transmitting overload arm | US454199 | 1982-12-29 | US4805753A | 1989-02-21 | Rogers B. Downey |
| Apparatus for limiting the force transmitted in either of two directions includes an overload or excessive force actuated switch that generates an excessive force indicating electrical signal that can be employed for drive source interrupting purposes whenever the force to be transmitted equals or exceeds a predetermined magnitude in either of two force transmitting directions and terminates this electrical signal when the force to be transmitted in either of two directions is less than or is reduced below a predetermined magnitude. | ||||||
| 167 | Driving force support for linear actuator | US914665 | 1986-10-02 | US4727762A | 1988-03-01 | Shuji Hayashi |
| This improved driving force support is used in a linear actuator in which rotary motion of a rotating screw shaft is converted to linear motion of a travelling nut. The driving force support comprises a pair of springs surrounding the rotating shaft and held in compression between a pair of shaft bearing receivers. The receivers and bearings held thereby move axially with the rotating shaft as axial forces are applied to the shaft by the travelling nut. The bearing receivers slide axially in a hollow housing. The springs are arranged in series between seats which normally abut the respective bearing receivers and also normally abut stop surfaces in the housing. One spring has a high degree of stiffness, and the other has a comparatively low degree of stiffness. An intermediate seat between the springs has a projection which abuts the seat on the opposite end of the weaker spring to limit the flexure of the weaker spring, while allowing it to compress as the bearing receivers move axially through a short distance. When the driving force exceeds a predetermined limit, the resulting axial movement of the bearing receivers is detected by a limit switch, which can be used to stop the actuator. During stopping, further rotation of the shaft results in compression of the stronger spring until the rotation stops. | ||||||
| 168 | Level control device | US636545 | 1984-08-01 | US4551663A | 1985-11-05 | George E. Gruber |
| A level control device is disclosed comprising a paddle on a rotary shaft projecting from a housing, a carrier disc coupled to the shaft and supporting a plurality of torque-transmitting levers having first arms engageable by drive pins or an apertured drive disc on an output shaft of an electric motor, an axially movable control plate biased toward the carrier by spring means which also cause the control plate to rotate with the carrier, the levers having second arms disposed between the carrier and the control plate for moving the control plate away from the carrier when the driving torque transmitted by the first arms increases due to increasing drag on the paddle caused by rising granular material coming into contact with the paddle, and a control switch operable by the movement of the control plate away from the carrier. The position of the switch is adjustable to provide a sensitivity adjustment. A slip clutch may be provided between the carrier and the paddle shaft. | ||||||
| 169 | Torque overload indicator | US303506 | 1981-09-18 | US4454504A | 1984-06-12 | Armin E. Jocz |
| A device is provided for use with an actuator having an actuator shaft which indicates when the torque on the actuator shaft exceeds a predetermined limit. The device comprises a housing which carries a pair of limit switches. A shaft extension is operatively connected with the actuator shaft so that axial force on the actuator shaft, which is proportional to the shaft torque, is transmitted to the shaft extension. A hub and Belleville washer arrangement translates the axial force on a shaft into a proportional axial movement of the hub while a radially extending member from the hub includes a portion positioned adjacent the limit switch. Thus, when the axial force in one direction on the shaft exceeds a first predetermined amount, the radially extending member activates one limit switch which in turn is connected to an indicator. Similarly, when the axial force in the other direction on the shaft exceeds a second predetermined amount, the radially extending member activates the other limit switch which is also connected to the indicator. An adjustable cam is secured to the radially extending member to vary the torque limit at which the limit switch is activated. | ||||||
| 170 | Rotating paddle bin level indicator | US258058 | 1981-04-28 | US4392032A | 1983-07-05 | Donald E. Roach, II |
| Apparatus for indicating the level of flowable material in a storage bin comprising a motor rotatably suspended by a spring within a protective enclosure and a drive shaft coupled by a ball-and-detent clutch to a paddle disposed within the bin to engage material therein. When the material reaches the level of the paddle, the drag on the paddle causes the motor to rotate within the enclosure and thereby to activate a switch disposed within the enclosure and coupled to the motor. A spring returns the motor to the switch-deactivated position when the material level decreases and the consequent drag is removed from the paddle. Electronic circuitry disposed within the housing includes field-selectable fail-safe circuitry for indicating either a high or a low material condition in the event of a power failure or the like independently of actual material level. | ||||||
| 171 | Safety device for a vehicle door actuated by a turnable shaft | US125757 | 1980-02-29 | US4322912A | 1982-04-06 | Siegfried Heinrich |
| A safety device for a vehicle door of the type actuated by a turnable shaft driven by a piston cylinder unit having a piston rod connected by a hinge bolt to a lever arm fixedly mounted on the turnable shaft. The safety device comprises a carrier coupled to the lever arm and slidably receiving the piston rod, a switch element on the carrier and a control element on the piston rod. When the door encounters an obstacle, the control element is brought into contact with the switch element to reverse the direction of movement of the door. | ||||||
| 172 | Reaction switch for an actuator drive system | US092198 | 1979-11-07 | US4288666A | 1981-09-08 | Carlton A. Milbrandt; Roy C. Schoen |
| A dual snap-action electric switch is used in an electric motor antenna drive to stop antenna movement when predetermined force levels to longitudinal movement are encountered. The switch has two actuator arms operated by actuator tabs maintained in spaced relation by a primary spring. A secondary spring urges one actuator tab against the primary spring. The actuator tabs are movable longitudinally in response to longitudinal movement of an electric motor driven worm shaft to open one switch at a predetermined force level and the other switch at a higher predetermined force level, to stop the motor, such as when respective full extension or retraction of the antenna is reached. | ||||||
| 173 | Level control sensor switch mechanism | US973825 | 1978-12-27 | US4211966A | 1980-07-08 | Donald B. Sweet |
| In a level control sensor switch mechanism mountable upon a bin containing bulk material of varying levels, a housing having a base which is mounted upon the bin wall and mounts a low-torque, low-speed electric motor having an output shaft which is coupled to a drive shaft journalled through the base, projects into the bin and mounts a paddle which is continuously rotatable when free of said bulk material, and is non-rotatable in said bulk material at a predetermined level thereof, stalling the motor. The improvement comprises an adjustment bracket upon the base mounting a torsion spring adapter. A stub on the motor axis is journalled within said adapter for limited rotary movement of the motor. A bracket secured to the motor projects from opposite sides thereof and is adapted for limited rotary movement with the motor in a plane at right angles to its axis. An adjustable time delay stop is mounted upon the adjustment bracket, retainingly engaging the motor bracket in a first position. The bracket has an extension arm at right angles thereto engageable by a torsion spring mounted upon the adapter. A second anchor is mounted upon the adjustment bracket for adjustably securing one end of the torsion spring. The other end of the spring biases said bracket and motor into its normal first position with the output shaft and paddle freely rotating. Upon stalling of the drive shaft due to its engagement with the bulk material, torque is transmitted to the motor, causing rotation of the motor and its bracket and bracket arm to a second switch-operating position against the action of the torsion spring. A plurality of switches within said housing have switch arms operatively engaged by the bracket arm when in its second position for selectively controlling the start and stop operations of conveyors, elevators or feeders and to provide an audible or visual warning signal. | ||||||
| 174 | Mechanical torque limit for valve actuator | US761596 | 1977-01-24 | US4114078A | 1978-09-12 | Richard F. Malinski; Aubrey C. Childers |
| An electrically energized actuator for operating a valve has an output shaft for connection to a rotatable valve stem and is driven, via a gear train, by an electrically energized motor. A safety shut off mechanism is responsive to a predetermined resistance to rotation of the output shaft to operate an electric switch which prevents further operation of the drive motor. | ||||||
| 175 | Load responsive switch actuator | US580310 | 1975-05-23 | US4051338A | 1977-09-27 | Newton T. Harris, III |
| A load responsive switch actuator mechanism comprises a body of deformable material (e.g., an elastomeric material) which deforms under either compressive or tensile forces to actuate a switch. In one preferred embodiment the deformable material is in the form of a solid, generally cylindrical configuration which, when compressed, will expand in diameter to actuate a load responsive switch. In a second preferred embodiment the deformable material is in the form of a generally cylindrical tube which, when subjected to a tensile load, will decrease in diameter and actuate a load responsive switch. | ||||||
| 176 | Limit switch assembly | US51747174 | 1974-10-24 | US3930133A | 1975-12-30 | SULZER HARRY E |
| A limit switch assembly is disclosed in this application and includes a slider member adapted to slide with axial movement of an input shaft and having at least one adjustable cam member carried thereon for cooperation with a pivoted actuator member located adjacent to and normally spaced from an electrical switch connected in a control circuit. In operation, movement of the input shaft causes corresponding movement of the slider and cam members. When the input shaft moves to its limit position, the cam member pivots the actuator member into engagement with the switch member thereby actuating the control circuit. By adjusting the cam member, the spacing between the actuator member and the switch member is adjusted whereby the limit position of the input shaft is also adjusted.
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| 177 | Automatic reversing control equipment | US47076074 | 1974-05-17 | US3899726A | 1975-08-12 | ELLMORE JOHN W |
| Control equipment for a reversible electric motor for driving a mechanism such as a garage door operator is disclosed. The control equipment includes a pressure responsive device for moving a movable switch element between first and second motor energizing positions in a circuit. The movable switch element in one of the circuit positions conditions the motor for operation in one direction, and in the other of the circuit positions conditions the motor for operation in another direction. The equipment further includes a relay normally selectively energizable by an operator controlled switch to alternately complete first or second motor energizing circuit paths, depending upon the position of the switch elements, to permit movement of the mechanism in the direction desired. In order to reverse the door when it encounters an obstruction in closing, a circuit is provided to the relay which bypasses the operator controlled switch. The pressure responsive device first operates a bypass switch in the bypass circuit and then moves the aforesaid movable switch element to the one of its positions which conditions the motor for operation in a direction reverse to the direction in which the motor was operating at the time the obstruction was encountered. Simultaneously, the movable switch element closes contacts which complete the bypass circuit, thereby energizing the relay to complete the motor circuit causing the motor to operate in the reverse direction. Means are provided for disabling the bypass switch, thereby preventing energization of the relay via the bypass circuit at the close limit of door travel. First and second thermal cutouts are provided for preventing unduly repetitious operation of the motor and to provide motor protection.
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| 178 | Torque sensing device | US40509973 | 1973-10-10 | US3891908A | 1975-06-24 | PORRAS RUBEN J |
| A nutative type electrical motor has a nutating stator which is restricted against rotational motion by a yieldable stop. The stop is movable when the reaction torque in the stator exceeds a certain limit. Movement of the stop opens a circuit to provide some control function, such as, de-energizing the motor to stop further movement of a valve actuator.
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| 179 | Cable load indicator | US3683355D | 1971-01-04 | US3683355A | 1972-08-08 | COLLINS LESLIE C |
| A cable with a terminal construction to transfer a load. Load transfer parts are structurally related with resilient load carrying elements interposed to give a controlled relative movement between the transfer parts. An electrical switch is supported in the terminal and the movement is used to actuate the switch which is included in an electrical circuit to give an indication such as a light when a selected load is applied to the terminal. An adjustable screw mounted in one of the load transfer parts provides the capability of varying the actuation of the switch to obtain the particular load selection desired.
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| 180 | Overload-responsive electric switchoperating device | US27407663 | 1963-04-19 | US3217128A | 1965-11-09 | COWAN WILLIAM L |
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