782results about How to "Reduce reaction force" patented technology

In a rotor for the dynamo, the interior circumference face of a rotor core main body makes contact in a thermally transmissible manner with a rotor axle, and the rotor axle includes a cooling medium circulation space. The rotor is provided with a cooling medium supply member, which supplies the cooling medium to the cooling medium circulation space. The cooling medium supply member is provided with a cooling medium supply path that extends in the rotor axle direction, and cooling medium supply holes that extend externally in the direction of the rotor diameter. The cooling medium supply holes are provided with supply apertures that open toward the cooling interior circumference face. The rotor axle is provided with cooling medium discharge holes that extend externally in the direction of the rotor diameter. The cooling medium discharge holes are provided with discharge apertures that open externally in the diameter direction.

The present invention relates to apparatus and methods for stabilizing and or maintaining adjacent bone portions in predetermined desired relationships and for constraining one, two or three-dimensional motion and / or rotation of the adjacent bone portions. More particularly, the present invention relates to a magnetic apparatus with at least two magnetic arrays, each of which may include any number of magnets arranged in a predetermined manner and each magnetic array generating a magnetic field therearound. Once implanted and secured to the adjacent bone portions, the apparatus provides interacting magnetic fields in the area of the bone portions and transduces magnetic energy into mechanical energy and mechanical energy into potential magnetic energy, thereby reproducing functionally anatomic and / or anatomically advantageous arrangement of the bone portions.

A key actuating system (1) of a keyboard musical instrument is provided which helps quickly push the keys by reducing reaction force with respect to force of pushing the keys during manual operation, and which supports a person having less strength to play the keyboard musical instrument. The key actuating system for a keyboard musical instrument generates a sound when a key (3) is pushed including: a pressure detection sensor (11) detecting a pushing pressure on the key; a status detection sensor (13) detecting a movement status of the key: an actuator (15) actuating the key in a pushing direction of the key; and a control portion (19), when the pressure detection sensor detects the pushing pressure and the status detection sensor detects motion of the key, controls operations of the actuator in order to maintain the detected pressure by the pressure detection sensor at a pressure threshold which is in a range larger than 0 and smaller than a pushing pressure on the key which is necessary for making a sound.

The invention relates to a wave power piezoelectric generating device which comprises a wave energy collector and more than one piezoelectric generating units, wherein the piezoelectric generating units are arranged on the wave energy collector; the wave energy collector comprises a U-shaped supporting floating body and a floating body, wherein the opening of the supporting floating body is connected through a rigid connecting rod; a supporting floating body framework is fixedly arranged on the supporting floating body, four support rods are fixedly arranged on the supporting floating body framework, and a generator soleplate, a generator round wall and a generator top plate are sequentially fixedly arranged at the tops of the four support rods through a generator frame; a floating body framework is arranged on the floating body, the floating body framework is rigidly connected with a driving shaft, and the driving shaft sequentially penetrates through the generator soleplate and the generator top plate; support posts sequentially penetrating through the generator soleplate and the generator top plate are fixedly arranged on the floating body framework, and the tops of the support posts are fixedly connected through connecting rods; and each piezoelectric generating unit comprises a plurality of piezoelectric vibrators and scribing sheets, wherein each piezoelectric vibrator comprises a middle layer and two piezoelectric sheets. The invention can realize sympathetic vibration under various incoming wave conditions and obtain higher wave energy conversion efficiency and output electrical energy.

The present invention provides a reliable modular production quality excimer laser capable of producing 10 mJ laser pulses in the range of 1000 Hz to 2000 Hz or greater. Replaceable modules include a laser chamber; a pulse power system comprised of three modules; an optical resonator comprised of a line narrowing module and an output coupler module; a wavemeter module, an electrical control module, a cooling water module and a gas control module. Important improvements have been provided in the pulse power unit to produce faster rise time and improved pulse energy control. These improvements include an increased capacity high voltage power supply with a voltage bleed-down circuit for precise voltage trimming, an improved communication module that generates a high voltage pulse from the capacitors charged by the high voltage power supply and amplifies the pulse voltage 23 times with a very fast voltage transformer having a secondary winding consisting of a single four-segment stainless steel rod. A novel design for the compression head saturable inductor greatly reduces the quantity of transformer oil required and virtually eliminates the possibility of oil leakage which in the past has posed a hazard.

A variable capacity vane pump includes a pump casing having a pump chamber with an inlet and an outlet port. A pump control ring is moveable within the pump chamber to alter the capacity of the pump. A vane pump rotor is rotatably mounted within the pump control ring and includes a plurality of slidably mounted vanes engaging the inside surface of the pump control ring. First and second control chambers between the pump casing and the pump control ring are operable to receive pressurized fluid to urge the pump control ring to reduce the volumetric capacity of the pump. A return spring biases the pump ring toward a position of maximum volumetric capacity against the force of the first and second control chambers to establish an equilibrium pressure. The supply of pressurized fluid to the second control chamber may be varied to change the equilibrium pressure of the pump.

An electric screwdriver capable of reducing the reactive force produced on the occasion of a screw tightening work, etc. The electric screwdriver is designed to transmit the rotational driving force of a first motor to the bit through a bit holder, and it includes a flywheel rotatively driven by a second motor in the direction same as the direction of rotation of the bit holder, a brake generating a reactive force in the direction offsetting the reactive force transmitted from the bit to the body casing through the bit holder, by braking the flywheel, and a brake operating mechanism for operating the brake in response to the magnitude of the reactive force transmitted from the bit to the body casing through the bit holder.

A lifting type support stand includes a foot stand, on which a drag mechanism and hanging tool moving mechanism are mounted, where two ropes configured on a sheave is used to couple the drag mechanism to hanging tool moving mechanism. The hanging tool moving mechanism can be driven to move vertically along the foot stand when the sheave is rotated. The rear side of sheave is projected with a scroll, the periphery of which is configured with an approximately tapered spiral line rope race. The rope race is surrounded with a drag rope, two ends of which are respectively coupled to the sheave and an extension spring, a reaction force of the spring is utilized to mount the hanging tool moving mechanism and display device. Whereby, a vertical position and moving distance of a display device can be adjusted and increased by moving the drag rope on the rope race.

An adaptive advance control system for a construction machine senses the reaction forces applied by the ground surface to a milling drum, and in response to the sensed changes in those reaction forces controls the motive power applied to an advance drive of the machine. Early and rapid detection of such changes in reaction forces allow the control system to aid in preventing lurch forward events of the construction machine.

The invention discloses a bottom power taking self-locking electric bus battery box system capable of quickly changing a battery. The system comprises a battery box (1), a tray (2) used for bearing the battery box and arranged on an electric bus, mobile equipment (4) for conveying the battery box, and a grabbing device (5) arranged on the mobile equipment; and a battery box locking and unlocking device (3) is arranged on the tray. Through the system, automatic assembly of the battery box in the electric bus battery box system is realized, and the problems of over positioning, deformation of power wire connection pegs, breakage, arc discharge, welding, difficulty in automatically realizing unlocking due to impact of the battery box to a bolt of a locking mechanism in jolt and deformation of the battery box due to impact in jolt. The system is reasonable, reliable, simple and compact in structure, and can full-automatically, quickly and conveniently realize quick change of the power battery.

A balance-positioning system of work-piece table on photo-etching machine is prepared as setting long stroke module on balance mass unit to drive exposure table to move along X and Y directions, arranging balance mass unit on base frame to balance reverse-acting force and reverse-acting torque, setting balance mass drift-proof unit between base frame and master balance mass to compensate drift of balance mass unit along X and Y as well as Rz directions, using control system to control position compensation of long stroke module and master balance mass according to feedback data of measurement unit.

A buffer apparatus of a treadmill including a bed rested on the ground, a tread apparatus and a buffer apparatus. A rail upward extends from the bed for a user to hold. The buffer apparatus is connected under the tread apparatus. The buffer apparatus includes an inflatable hollow main body and a pressurizing unit for inflating the main body. The main body has a buffer section and a fixing section for fixing the main body under the tread apparatus. The buffer section has a large interior space. After the main body is inflated by the pressurizing unit, a bottom end of the buffer section is still lower than a bottom end of the fixing section. The main body further has an intake and an exhaust port. After the pressurizing unit is activated, the air can go into and out of the main body through the intake and the exhaust port.

The invention provides a sliding bottom electricity-taking and self-locking electric bus battery quick-change pellet device. The electric bus battery quick-change tray device comprises a pellet and a locking and unlocking mechanism (3) mounted on the pellet. According to the invention, the battery box can be correctly positioned and reliably locked reasonably; the force is reasonably applied to the battery box; simple structure and simple and reasonable power wire splicing mode are obtained; and the arc discharge phenomenon can be effectively prevented.

A passenger seat airbag apparatus includes: an airbag which is housed in a folded state inside an instrument panel, and which inflates toward a passenger with a supply of gas during a frontal collision of a vehicle, and which has a vent hole that can be opened and closed; a tether whose first end is linked to a periphery of the vent hole in the airbag, and which closes the vent hole due to tension that is caused when the airbag inflates; an actuator which has a first hole that a second end of the tether is passed through, and which discontinues a linked state of the tether by cutting the tether if a predetermined condition is satisfied; and a protective member that is attached to the actuator so as to cover at least an edge portion of the first hole, and that is interposed between the edge portion and the tether.

A variable capacity vane pump is provided, the pump having a pump control ring which is moveable to alter the capacity of the pump and the pump can be operated at either of at least two selected equilibrium pressures. The pump ring is moved by at least first and second control chambers, the control chambers abutting the control ring such that pressurized fluid supplied to them acts on the pump control ring to move the pump control ring to reduce the volumetric capacity of the pump. When pressurized fluid is supplied to only one control chamber, the pump operates at a first equilibrium pressure and when pressurized fluid is also supplied to the second chamber, the pump operates at a second equilibrium pressure. If desired, pressurized fluid can also be supplied only to the second control chamber to operate the pump at a third equilibrium pressure and / or additional control chambers can be provided if required.

A shoe foundation assembly for receiving and retaining a number of cleats or spikes into the bottom sole of the shoe such as might be utilized in various sporting events. The shoe foundation assembly includes a unitarily molded shoe cradle component with a toe guard at a first end, a heel guard at a second end, and arch medial. An outsole is bonded to the midsole component sized and shaped to be positioned on the underside base of the shoe cradle component. The detachable cradle incorporates hillock apertures for positioning a number of sealable inserts to receive the cleat / spikes. Bonded to the midsole is an outsole component having a plurality of slit apertures also positioned to receive the plurality of cleat / spikes. A number of different types of cleats or shoe spikes may be inserted into the apertures in the outsole and through the sealable inserts within the midsole. Each of the cleat / spikes incorporates a structure for the retention of the cleat / spike onto the shoe foundation.

The invention relates to a spring strut arrangement for wheel suspensions of motor vehicles formed of a telescoping shock absorber (12), a suspension spring element (14) preferably designed as a helical compression spring, and a storage spring element (16) preferably designed as a helical coil spring, wherein the spring elements (14, 16) are supported by spring caps (28, 30) on the body (22) of the motor vehicle and on a wheel suspension element (24), and third spring cap (34) located therebetween is displaceably guided relative to the body (22) along the longitudinal axis of the shock absorber by means of an electrically driven positioning drive (32) disposed within the spring elements (14, 16), wherein the positioning drive (32) comprises a positioning spindle (36) rotatably supported about the shock absorber and a positioning nut (40) connected to the displaceable spring cap (34). According to the invention, the shock absorber (12) is disposed on the body (22) of the motor vehicle with the damping tube (46) upward, and the positioning spindle (36) is rotatably supported on the damping tube (46).

A training bag designed to provide the user, a martial artist or boxer, with a training apparatus that simulates the response of a human body upon the execution of fighting techniques on the training bag and, thereby, enable the martial artist or boxer to practice and master the affects of those techniques on an opponent without injuring the opponent or themselves. The training bag comprises an inner core with a filler material and a filler covering material that provides the proper height and weight of a training bag. The training bag further comprises an outer core with an impact material and an outer covering material. The impact material provides the martial artist or boxer with the realistic sensation of contacting an opponent with the fighting techniques and the outer covering material covers the impact material and displays imprinted indicia, if desired.

The invention discloses an intelligent shoveling bus controlling system of a loader. According to the intelligent shoveling bus controlling system of the loader, a collecting bucket oil port, a movable arm lifting oil port, an overturning bucket oil port, a movable arm descending oil port and a floating oil port of an electric-hydraulic proportional pilot valve are connected with a collecting bucket oil port, a movable arm lifting oil port, an overturning bucket oil port, a movable arm descending oil port and a floating oil port of an electric-hydraulic proportional distribution valve respectively, a second oil inlet of the electric-hydraulic proportional pilot valve is connected with a large cavity of a movable arm oil cylinder, and an overturning bucket cylinder displacement sensor, a movable arm displacement sensor, a shoveling bucket horizontal displacement sensor, a main controller, a descending height setting button, a lifting height setting button, an electric control pilot handle and an engine controller are respectively connected with a bus. The intelligent shoveling bus controlling system of the loader is efficient, saves energy, is small in energy loss, improves the stability and comfort of work of the whole loader, is long in service life, is good in leveling function, avoids accidents, guarantees operation safety, improves operation efficiency, is favorable for upgrading and modification of products, and is used for controlling the shoveling process of the loader.

The invention discloses a stereoscopic garage. The stereoscopic garage is characterized in that four windlasses of a winch are driven to rotate by using a winch motor, and simultaneously four steel wire ropes are simultaneously wound and released, so that a lift car cannot rotate at random; a carriage is connected with a top seat of the lift car through a horizontal rotating device of the carriage, which is arranged below the top seat of the lift car; therefore, when the carriage rotates, a car carrying device arranged on a carriage base rotates together with the carriage, and the phenomenon that the car carrying device bumps a carriage pillar is avoided; when a trolley or a large vehicle for lifting or transversely moving the stereoscopic garage is started or stopped, the lift car swings due to the inertia of the lift car; and an axial flow fan of an inertia damping device of the lift car can be used for reducing the swing amplitude of the lift car. The car carrying device in the stereoscopic garage is formed by using a horizontal moving motor for driving walking wheel gears to rotate on walking racks, thus a mounting bracket and a supporting plate are driven to move horizontally; and a hydraulic jack on the mounting bracket is used for putting a car on the supporting plate on garage steps. As the center of gravity of the carriage is biased after the car is put on the supporting plate, the biased center of gravity can be adjusted by a center-of-gravity adjusting device.

A knee brace for rehabilitation provides a stable support for an injured knee using a four-crank mechanism. Positioning pins are used to fix limiting blocks pivoted to the upper and lower braces. It limits the moving range of the crank between the upper and lower braces, restricting the moving angles of the upper and lower braces. Besides, the buffer pads are covered at the pivotal axes of the upper and lower braces in order to alleviate the collision between joint surfaces during the motion of injured knee. Such a mechanism protects the rehabilitating knee joint. The disclosed structure can solve the failure problem of the knee brace for rehabilitation due to a loose pin in the prior art. The counterforce to injured knee from the performance of knee brace reduced for rehabilitation can prevent the user's knee joint from further injuries.

The invention discloses a concrete wall prefabricated drilling device for building construction. The device comprises a rack, a rotating stand column, a supporting beam, a lifting sliding block, a drilling box and a drill bit. A rectangular sliding cavity is formed in the outer wall of the upper portion of the rotating stand column, a lead screw is rotationally erected inside the rectangular sliding cavity in a bearing connection mode, the lifting sliding block in sliding fit with the rectangular sliding cavity is arranged inside the rectangular sliding cavity in a vertical sliding mode, the lead screw is sleeved with the lifting sliding block in a threaded connection mode, the supporting beam is fixedly erected on the side wall of the right end of the lifting sliding block in a welded mode, and the drilling box is fixedly installed on the upper surface of the right end of the supporting beam. The device is simple in structure, convenient to operate, flexible to use, capable of greatlylowering the labor intensity of a worker, high in drilling efficiency, long in service life and suitable for being used and popularized.

An airbag device for a vehicle includes a gas supply portion, an airbag body, and a low pressure portion. When a vehicle collision occurs, the gas supply portion injects gas into an airbag body. The airbag body has a single-chamber structure. When the airbag body receives the gas from the gas supply portion, the airbag body is inflated and deployed toward an occupant to restrain the shoulders of the occupant. The low-pressure portion is provided in the same area of the airbag body, which faces the occupant when the airbag body is inflated and deployed, to protect the occupant's head. When the airbag body is inflated and deployed, the low-pressure portion is inflated such that the pressure in the low-pressure portion is lower than the pressure in the airbag body.

Disclosed herein is a pedal simulator for an active brake system. The pedal simulator includes a simulator block provided therein with a bore, a first reaction unit including a first reaction piston slidably installed in the bore, a first damping member installed at the first reaction piston, and a first reaction spring compressed by the first reaction piston, and a second reaction unit including a second reaction piston provided in the bore to support the first reaction spring and slide in the bore, a damping housing connected to the simulator block to be spaced a certain distance apart from the second reaction piston, a second reaction spring installed between the second reaction piston and the damping housing to be compressed by the second reaction piston, and a second damping member installed in the damping housing to contact the second reaction piston. The second damping member is configured with an upper damper and a lower damper.

A reaction control system controls a reactive force to be applied to an operating device operated by a driver of a vehicle. The system includes a device for measuring a steering speed of steering of the operating device; a device for measuring a steering torque applied to the operating device; and a reactive force correcting device for correcting the reactive force in a manner such that the corrected reactive force increases at least when the measured steering speed is zero, and that the higher the measured steering torque, the higher the corrected reactive force is. The reactive force correcting device may correct the reactive force in a manner such that the higher a speed of the vehicle, the higher the corrected reactive force is. A non-effectivity range of the steering torque in which the corrected reactive force is not influenced by the steering torque may be defined.

The invention discloses a polishing device for processing board surfaces. The polishing device comprises a mounting platform and a polishing mechanism, wherein supporting rods are arranged on the mounting platform; a working platform is arranged on the supporting rods; a fixing seat is arranged on the working platform; a clamping mechanism is connected on the fixing seat; a movable clamping block is arranged at one end of the clamping mechanism; a sliding seat is arranged on the bottom surface of the movable clamping block; a sliding platform is arranged on the working platform; the sliding seat slides on the sliding platform; a fixed clamping block is arranged on one side of the sliding platform; a driving mechanism is arranged on the working platform; a first sliding block is connected on the driving mechanism in a sliding manner; a fixing mechanism is arranged on the working platform; a second sliding block is connected on the fixing mechanism in a sliding manner; a lifting mechanism is arranged between the first sliding block and the second sliding block; and the polishing mechanism is arranged on the lifting mechanism. According to the polishing device, through the combination of the clamping mechanism and the driving mechanism, a moving type polishing operation effect of the polishing mechanism is achieved, the polishing operation does not need manpower assistance, the working efficiency is high, and the cost is reduced.

A lifting type support stand includes a foot stand, on which a drag mechanism and hanging tool moving mechanism are mounted, where two ropes configured on a sheave is used to couple the drag mechanism to hanging tool moving mechanism. The hanging tool moving mechanism can be driven to move vertically along the foot stand when the sheave is rotated. The rear side of sheave is projected with a scroll, the periphery of which is configured with an approximately tapered spiral line rope race. The rope race is surrounded with a drag rope, two ends of which are respectively coupled to the sheave and an extension spring, a reaction force of the spring is utilized to mount the hanging tool moving mechanism and display device. Whereby, a vertical position and moving distance of a display device can be adjusted and increased by moving the drag rope on the rope race.

A flexible wiring substrate that is used in a liquid ejection head having an element substrate provided with energy generating elements for generating energy for ejecting liquid includes: a bending portion; a base member including resin; electrical wiring lines formed on the base member and electrically connected to the element substrate, the electrical wiring lines extending over a ridge of the bending portion; and a metal layer that is arranged on an area of the base member in which no electrical wiring lines are provided and that is not electrically connected to the element substrate, the metal layer extending over the ridge.