Patent application number | Description | Published |
20110072928 | Mechanism for Converting Rotary Motion into Linear Motion - Upon assembly of a mechanism for converting rotary motion into linear motion, since a plurality of rollers are different from one another in the tilt direction with respect to a holder, a difficulty occurs in fixing one end sides thereof to the holder and thereafter making fixation for the other end sides. | 03-31-2011 |
20110179896 | LEAD SCREW APPARATUS, LINEAR ACTUATOR, AND LIFT APPARATUS - A lead screw apparatus includes a screw shaft having a spiral channel on an outer circumferential surface thereof, a plurality of rollers rotatable with contact with the spiral channel, and a cage rotatably supporting the rollers for conversion between relative rotation and linear motions between the screw shaft and the cage bi-directionally. The lead screw apparatus further includes a bearing and a holder 6 supported by the case for supporting the bearing. An inner ring of the bearing and the roller are integrally formed. An outer ring of the bearing has a protrusion on an outer circumferential surface thereof on a side closer to the screw shaft. Rollers of the bearing having a circular truncated cone shape are disposed in the bearing in a circumferential direction with substantially no gap. The outer ring has a thread part to shift the bearing and the roller. | 07-28-2011 |
20110193500 | MECHANISM FOR CONVERTING ROTARY MOTION INTO LINEAR MOTION AND LIFTING DEVICE - There is provided a mechanism for converting rotary motion into linear motion in which high positioning accuracy can be obtained in mutual conversion between rotary motion and linear motion. The mechanism includes a plurality of rollers having a roller annular groove member and a pair of thrust bearings, a thrust bearing portion that is convex shaped and is held between the pair of thrust bearings on an outer surface of an end of the roller shaft, a step surface that is disposed on an inner surface of the roller annular groove member and facing to the thrust bearing portion putting one of the pair of thrust bearing in between, a thrust facing member that is in mesh with an inner surface of the roller annular groove member and is facing to the thrust bearing portion putting the other one of the pair of thrust bearing in between. | 08-11-2011 |
20110255706 | Sound Generator - A sound generator is provided capable of generating vehicle sound that will be produced when a specific sound element is changed out of a plurality of sound elements arising from the operation of a plurality of components mounted on a vehicle. A sound generator | 10-20-2011 |
20110303030 | MECHANISM FOR CONVERTING ROTATIONAL MOTION TO LINEAR MOTION - A rotational-to-linear conversion mechanism inhibits interference from occurring in places except for an engagement site to increase the efficiency of conversion mechanism and reliability, which has: a rack rod | 12-15-2011 |
20120012425 | LINEAR ACTUATOR AND FORKLIFT TRUCK - This invention includes a screw shaft | 01-19-2012 |
20120111669 | LINEAR ACTUATOR AND FORKLIFT TRUCK - This invention includes a screw shaft | 05-10-2012 |
20120128533 | LIQUID SUPPLY DEVICE USING CHECK VALVE AND REACTIVE LIQUID CHROMATOGRAPHY SYSTEM - It is possible to correctly determine whether a change in the pressure or flow rate is caused by normal opening and closing operations of a check valve and to monitor in real time whether an operation of a check valve is normal or abnormal in a liquid supply device. Light is introduced in the check valve and a change in the quantity of light transmitted through or reflected by the check valve, caused by the opening and closing of the valve is detected, so that the opening and closing operations of the check valve can be directly detected. The check valve is arranged in a pipe in the liquid supply device, and a change in the pressure in the pipe is monitored on the basis of a signal from a pressure sensor and a signal which represents the opening and closing of the check valve. | 05-24-2012 |
20120174691 | LINEAR ACTUATOR | 07-12-2012 |
20130104631 | PUMP FOR LIQUID CHROMATOGRAPH, AND LIQUID CHROMATOGRAPH | 05-02-2013 |
20130139791 | DRIVE UNIT OF FUEL INJECTION DEVICE - In a drive unit of a fuel injection device, an electric current is supplied to the fuel injection device by applying a high voltage to the fuel injection device from a high voltage source whose voltage is boosted to a voltage higher than a battery voltage at the time of opening a valve of the fuel injection device. Thereafter, the electric current supplied to the fuel injection device is lowered to a current value at which a valve element cannot be held in a valve open state by stopping the applying of the high voltage from the high voltage source. Thereafter, in a stage where a supply current is switched to a hold current, another high voltage is applied to the fuel injection device from the high voltage source. | 06-06-2013 |
Patent application number | Description | Published |
20110259673 | LINEAR ACTUATOR - In a method for utilizing a wedge engagement mechanism as means for retaining an output shaft without requiring a large driving power, there is a need for preventing fatigue life of an actuator from being reduced as a result of stress at contacting portions of parts of wedge engagement portions of the wedge engagement mechanism becoming large. | 10-27-2011 |
20130312399 | SYSTEM FOR DRIVING WORKING MACHINE - The present invention provides a system for driving a working machine, while the system achieves high energy saving, the system improving installability by downsizing hydraulic pumps and motors, and having extensibility enabling an attachment to be easily added. A system for driving a working machine according to the invention includes: a plurality of hydraulic closed circuits that connect hydraulic pumps to hydraulic actuators in a closed circuit manner; hydraulic open circuit that connects a hydraulic pump to hydraulic actuators in an open circuit manner; first assist circuits that connect between the hydraulic closed circuits so as to cause a hydraulic fluid to be mutually supplied between the hydraulic closed circuits; and second assist circuits that connect the hydraulic closed circuits to the hydraulic open circuit so as to cause the hydraulic fluid to be supplied from the hydraulic closed circuits to the hydraulic open circuit. | 11-28-2013 |
20140283508 | DRIVE SYSTEM FOR HYDRAULIC CLOSED CIRCUIT - A drive system suppresses cylinder speed fluctuation at times of load inversion in a hydraulic closed circuit system in which a single rod cylinder is driven by a hydraulic pump. The drive system has a control device including: pressure detection means which detect pressure in a rod-side hydraulic chamber of the hydraulic cylinder and pressure in a head-side hydraulic chamber of the hydraulic cylinder; load calculation means which calculates the load on the hydraulic cylinder from the pressure in the rod-side hydraulic chamber and the pressure in the head-side hydraulic chamber; load switching means which calculates a first proportional gain in accordance with the polarity of the calculated load; and multiplication means which calculates a command signal by multiplying the calculated first proportional gain and an operation amount input from the operating device together and outputs the calculated command signal to the delivery flow rate control means. | 09-25-2014 |
20150292183 | Hydraulic System for Work Machine - Delivery ports of a closed circuit hydraulic pump | 10-15-2015 |
Patent application number | Description | Published |
20100199831 | ACOUSTIC TIMBER FOR MUSICAL INSTRUMENT - An acoustic timber for use in an acoustic musical instrument is constituted of a plurality of woody members, such as woody fibers, woody veneers, blasted bamboo fibers, and defibrated bamboo fibers, whose fiber length is 50 mm or more. An epoxy resin is impregnated into the woody members with an impregnation factor of 5 weight-percent through 50 weight-percent. The woody members impregnated with the epoxy resin are joined together by way of heating and compressive molding so that the fibers thereof are uniformly aligned in the desired fiber-aligning direction. | 08-12-2010 |
20110247475 | STICK OF STRING INSTRUMENT BOW, STRING INSTRUMENT BOW AND METHODS OF MANUFACTURING STICK OF STRING INSTRUMENT BOW - A stick of a string instrument bow includes a base material having an arched-rod shaped carbon fiber resin layer made of carbon fiber resin and a glass fiber resin layer which covers the outer surface of the carbon fiber resin layer and is made of glass fiber resin, and the glass fiber resin layer has a non-adhesion portion formed of an air layer present within the glass fiber resin layer and an adhesion portion which does not include the air layer. | 10-13-2011 |
20130111757 | METHOD OF FABRICATING BOW STICK OF STRINGED INSTRUMENTAND BOW STICK OF STRINGED INSTRUMENT - A method of fabricating a bow stick includes winding a prepreg, in which a fiber is impregnated with a resin, on a mandrel with a diameter gradually decreasing toward a distal end, setting a semi-fabricated product, in which the prepreg is wound on the mandrel, into a mold and molding the semi-fabricated product in a shape corresponding to a cavity formed between the mold and the mandrel by heating and pressurizing the semi-fabricated product in the mold, and taking out the mandrel from a molded product molded in the shape corresponding to the cavity to acquire a long and hollow stick body. When adjusting at least one of a weight distribution, a center of gravity, and a weight of the stick body, the volume of the cavity is changed using the mandrel of which the diameter or the diameter variation is gradually changed in an axis direction. | 05-09-2013 |
20150107434 | BOARD FOR STRINGED INSTRUMENT, METHOD OF MANUFACTURING BOARD FOR STRINGED INSTRUMENT, AND STRINGED INSTRUMENT - A board for a stringed instrument which forms a front plate or a back plate of a stringed instrument, includes: a veneer that includes a concave portion for partially reducing the thickness of the veneer, in which the veneer is curved to be convex toward one surface side. In this board for a stringed instrument, fiber of the veneer may extend along the curved shape of the veneer. | 04-23-2015 |
20150107435 | BOARD FOR STRINGED INSTRUMENT, METHOD OF MANUFACTURING BOARD FOR STRINGED INSTRUMENT, AND STRINGED INSTRUMENT - A board for a stringed instrument which forms a front plate or a back plate of a stringed instrument, includes: a laminated plate that is obtained by laminating a plurality of veneers having a uniform thickness by an adhesive, at least one of the veneers having a different planar shape than the other veneers, in which the laminated plate is curved to be convex toward one surface side and has a thin portion and a thick portion. | 04-23-2015 |