975 results about "Torque limiter" patented technology

In a torque-limiting device, a first end engages a fastener, a second end receives an applied torque, and a magnetic torque limiter transmits the applied torque from the second end to the first end to rotate the first end in conjunction with the second end when the applied torque is less than a predetermined limit.

A probe which is adapted to repeatedly transmit and receive signals during radial scanning within a body cavity to acquire reflected signals and transmit the reflected signals to an image diagnostic apparatus which, on a basis of the reflected signals, forms and outputs a tomographic image of the body cavity and biotissue surrounding the body cavity includes a hollow shaft for transmitting rotational drive force to perform the radial scanning, and a transmission line extending along the shaft to transmit the reflected signals to the image diagnostic apparatus. The shaft receives the rotational drive force via a torque limiter which possesses a thickness which is non-uniform in a circumferential direction at a part of the torque limiter along a length of the torque limiter.

An asymmetric torque limiting coupling system for use on wind turbines, in which a forward torque limiting clutch and a reverse torque limiting clutch are provided in paired relation, with the reverse torque limiting clutch having a characteristic slip torque that is significantly less than that of the forward torque limiting clutch. In a specific embodiment disclosed, an asymmetric torque limiter interconnects a wind turbine with a generator shaft. The coupling includes an input housing and an output hub, with an overrunning mechanism interposed between the two. A first torque limiting mechanism is provided in series interconnection with the overrunning mechanism between the input housing and hub, while a second torque limiting mechanism is provided in parallel interconnection with the overrunning mechanism between the input housing and output hub.

An apparatus comprising a torque wire connected to an imaging probe; and a torque limiter defining a bore, a first end of the torque limiter being in mechanical communication with a motor, a second end of the torque limiter being in mechanical communication with the torque wire, the torque wire being disposed through the bore of the torque limiter. The torque limiter comprises a member defining at least one cutout which causes the torque limiter to break when rotational force on the torque wire exceeds a predetermined amount, thereby decoupling the motor from the torque wire.

An apparatus comprising a torque wire connected to an imaging probe; and a torque limiter defining a bore, a first end of the torque limiter being in mechanical communication with a motor, a second end of the torque limiter being in mechanical communication with the torque wire, the torque wire being disposed through the bore of the torque limiter. The torque limiter comprises a member defining at least one cutout which causes the torque limiter to break when rotational force on the torque wire exceeds a predetermined amount, thereby decoupling the motor from the torque wire.

The present invention relates to a method and apparatus for limiting the contact force between a moving device and another object, using a parallel mechanism and torque limiters where the threshold force to activate the force limiting mechanism is not related to the configuration of the moving device or the location of the contact force relative to the activation point of the force limiting mechanism, and where the mechanism may be configured for one, two or three degrees of freedom. A counterbalance mechanism is also provided to counteract gravity load when the force limiting mechanism is configured for three degrees of freedom and responsive to contact forces including a vertical element. In particular, the invention relates to a method and apparatus for limiting the contact force between a moving robotic device and a contactable object.

An apparatus comprising a torque wire connected to an imaging probe; and a torque limiter defining a bore, a first end of the torque limiter being in mechanical communication with a motor, a second end of the torque limiter being in mechanical communication with the torque wire, the torque wire being disposed through the bore of the torque limiter. The torque limiter comprises a member defining at least one cutout which causes the torque limiter to break when rotational force on the torque wire exceeds a predetermined amount, thereby decoupling the motor from the torque wire.

A cosmetic applicator includes a handle, a drive coupled to the handle, an applicator head coupled to the drive, and a torque limiter coupled to or within at least one of the drive and the applicator head such that the torque applied via the applicator head does not exceed a predetermined allowable torque.

A clamp comprises an anvil and a jaw member moveable relative to the anvil between a secured positioned and an unsecured positioned. A driver, which moves the jaw member between the secured and unsecured positions, includes a torque limiter to inhibit overtightening the jaw member against an object. The jaw member has a rigid engagement portion and an elastomeric pad on its engagement surface. In the unsecured position, the elastomeric pad projects above the rigid material such that when the jaw member is brought into contact with the object, the elastomeric pad contacts the object and the object is substantially free of contact with the rigid engagement portion. In the secured position, the elastomeric pad is compressed such that both the elastomeric pad and rigid engagement portion contact the object.

An intelligent door lock system has a drive shaft of a lock device. A circuit is coupled to the drive shaft. A torque limiter is coupled to the circuit. The torque limiter is configured to reduce excessive force being applied to components of the intelligent door lock system. A motor is coupled to the circuit.

A method for producing an over-running decoupler that is configured to transmit rotary power between a rotary member and a hub. The over-running decoupler includes a one-way clutch having a clutch spring, a carrier that is coupled to the clutch spring and at least one spring that resiliently couples the carrier to the hub. The method includes: establishing a desired fatigue life of the at least one spring; establishing a design deflection of the at least one spring during resonance, wherein deflection of the at least one spring at the design deflection during resonance does not reduce a fatigue life of the at least one spring below the desired fatigue life; and preventing resonance in the over-running decoupler by controlling a maximum deflection of the at least one spring such that the maximum deflection is less than or equal to the design deflection.

The invention discloses a lock cylinder fixed type cross-shaped mechanical antitheft lock matched with a fingerprint lock and relates to the field of antitheft locks. By means of the characteristic that the operation manner that a key can only be inserted and pulled and unlocking can be conducted as long as a handle is rotated of the mechanical antitheft lock is right the same as the operation manner of the fingerprint lock is utilized, the scheme of matched usage of the mechanical antitheft lock and the fingerprint lock is put forwards. A cam mechanism of a special structure and double clutches running independently are mainly adopted so that fingerprint recognition unlocking, key unlocking and locking operation can be completed through the same handle, wherein the cam mechanism is mainly composed of a torque limiter, a driven ring, a cam ring and a stirring wheel in a combined manner, engagement and disengagement of the auxiliary clutch are completed through key inserting and pulling, and the main clutch and the auxiliary clutch are relatively independent and do not interfere with each other; and therefore convenience of the fingerprint lock is maintained in the whole set of lock, and meanwhile the beneficial effects that technical opening, violent opening and damage are prevented, the handle can idle, and a main lock plunger, a spring bolt and a lock body are movably connected in an external hanging manner of the mechanical antitheft lock are achieved.

A color thermal printer has a feed roller set, a thermal head, and a tension roller set that are serially arranged along a transporting path. The feed roller set and the tension roller set are rotated by respectively a stepping motor and a DC motor. The stepping motor rotates forwards. Simultaneously, the DC motor rotates the tension roller set forwards, to apply a first transporting force to the continuous recording sheet at a level higher than a predetermined transporting force of the feed roller set. Also, the stepping motor rotates backwards. Simultaneously, the DC motor rotates the tension roller set backwards, to apply a second transporting force to the continuous recording sheet at a level lower than the predetermined transporting force. A torque limiter applies load to the tension roller set relative to an output shaft of the DC motor, to keep the tension roller set rotated at a speed according to the predetermined transporting force simultaneously with application of the first or second transporting force to the continuous recording sheet. Thus, transport of the continuous recording sheet is stabilized according to a difference between the predetermined transporting force and the first or second transporting force.

A push-pull welding wire feeder includes plural wire feeding units provided in a wire feeding passage extending from a welding wire magazine, in which a roll of welding wire is accommodated, via a wire guide tube to a welding torch. At least one of the wire feeding units includes a torque limiter provided in a driving transmission system thereof for transmitting a driving force from a driving source to the welding wire. Accordingly, the welding wire feeder can steadily convey the welding wire even at acceleration or deceleration while allowing the welding wire to be bent, thus contributing to favorable result of its welding operation.

An intelligent door lock system has a drive shaft of a lock device. A circuit is coupled to the drive shaft. A torque limiter is coupled to the circuit. The torque limiter is configured to reduce excessive force being applied to components of the intelligent door lock system. A motor is coupled to the circuit.

A length of each pocket of a cage in a circumferential direction is smaller than the sum of an outer diameter of a roller and a free length of a coil spring. The cage can rotate relative to an inner ring having cam surfaces in accordance with revolution of the rollers in an overload-applied condition, and the cage can not rotate in a direction opposite to a direction of revolution of the rollers in the overload-applied condition.

The invention discloses a safely mechanic arm in the robot technical domain, which comprises the following parts: waist joint, shoulder joint, elbow joint, carpal joints and grip, wherein the waist torque limiter is set in the waist joint; the elbow joint torque limiter is set in the elbow joint; the waist torque limiter and elbow joint torque limiter limit the maximum load torque of the waist joint and elbow joint separately; the central axle of the waist joint and shoulder joint is mutually vertical and crossing; the central axle of the shoulder joint is perpendicular and crossing to the axle of rotation shaft of elbow joint; the waist joint, shoulder joint and elbow joint have one rotary swaying freedom degree; the waist torque limiter and elbow joint torque limiter protect the mechanic arm effectively under occasional condition, such as overload or collision and so on; the invention is especially for helping invalid or nursing.

A motor operated power steering device which transmits rotational force from a steering assistance motor to a steering shaft by way of a gear fitted around the outer circumference of the steering shaft. A torque limiter fitted in between the steering shaft and the gear comprises a torque setting member, which is subject to diametric deformation as a result of being fitted in between the outer circumference of the steering shaft and the inner circumference of the gear. Diametric force is applied to the steering shaft and the gear in accordance with the diametric deformation of the torque setting member. The limit torque value of the torque limiter corresponds to the diametric deformation of the torque setting member.

A clamp comprises an anvil and a jaw member moveable relative to the anvil between a secured positioned and an unsecured positioned. A driver, which moves the jaw member between the secured and unsecured positions, includes a torque limiter to inhibit overtightening the jaw member against an object. The jaw member has a rigid engagement portion and an elastomeric pad on its engagement surface. In the unsecured position, the elastomeric pad projects above the rigid material such that when the jaw member is brought into contact with the object, the elastomeric pad contacts the object and the object is substantially free of contact with the rigid engagement portion. In the secured position, the elastomeric pad is compressed such that both the elastomeric pad and rigid engagement portion contact the object.

A dental handpiece including a housing of a size and configuration to be conveniently graspable by a user; a dental tool clamping device carried by the housing; a dental tool to be clamped in the clamping device; a rotary drive for rotating the clamping device, and the dental tool when clamped therein; and a transmission system coupling the rotary drive to the dental tool to rotate same. The dental tool includes a driving tip for engaging the head of a fastening member to be fixed by rotation within the patient's mouth. The transmission system includes a torque limiter for limiting the torque applied by the rotary drive to the driving tip. In some described embodiments, the torque limiter is included within the dental housing, and in other described embodiments it is included within the dental tool.

Disclosed is a torque limiter having driver mandrel and driven axially aligned mandrels, a piston movable into and out of an engaged position wherein the driver and driven mandrels are coupled together to transmit torque there between. Hydraulically locking the movable piston in an engaged position. Disengaging the hydraulic lock when during rotation when a specified torque magnitude is exceeded to allow relative rotation between the mandrels. Resetting the torque limiter by hydraulically locking the piston in the engaging position when relative rotation ceases or is reduced.

In order to provide a stand for a display monitor capable of preventing the occurrence of abnormal noise when the stand moves upward and downward and capable of being intended to be thinner in thickness by exercising ingenuity especially in a raising and lowering mechanism, the stand is composed of a base member attached to a pedestal portion; a case body erected on the base member; a raising and lowering plate inserted in the case body so that the plate can slide in upward and downward directions; a bracket to which a display monitor is attached, installed on an upper side of the raising and lowering plate via a tilt mechanism; a rack member attached to the raising and lowering plate; and a torque limiter having a driving pinion gear engaged with the rack member, which is fixed to the case body and generates a rotation torque when rotating in one direction.

A method for producing an over-running decoupler that is configured to transmit rotary power between a rotary member and a hub. The over-running decoupler includes a one-way clutch having a clutch spring, a carrier that is coupled to the clutch spring and at least one spring that resiliently couples the carrier to the hub. The method includes: establishing a desired fatigue life of the at least one spring; establishing a design deflection of the at least one spring during resonance, wherein deflection of the at least one spring at the design deflection during resonance does not reduce a fatigue life of the at least one spring below the desired fatigue life; and preventing resonance in the over-running decoupler by controlling a maximum deflection of the at least one spring such that the maximum deflection is less than or equal to the design deflection.

An adjustable torque limiter that can be coupled between a high speed driver and the socket that rotates a mechanical fastener. When a preset torque level is reached, the torque limiter disengages the rotational drive force from the bit. The adjustability of the torque limitation is accomplished by varying the amount of spring force by which a thrust plate (coupled to the high speed driver) is forced against a set of steel balls residing in slots of a radial torque plate and in a set of paths formed in a concavity of an upper torque body (coupled to the driven socket engaging stud). When a certain preset torque is transmitted from the driver to the socket, the steel balls traverse outward along the separate arced ramp radial paths therein the upper torque body until the balls enter an annular race that allows the thrust plate to go into a disengaged or free wheel mode from the upper torque body.

A thrust reverser system actuator assembly is provided that includes a torque limiter to limit the number of torque that may be applied to the actuator assembly. The actuator assembly includes an actuator and a torque limiter assembly. The actuator is adapted to receive a drive force and is configured, in response to receipt of the drive force, to move between a stowed position and a deployed position. The torque limiter assembly is coupled to an end of the actuator and is configured to limit torque applied to the actuator assembly upon a torque magnitude being reached in at least the actuator.