摘要:
An ultrasonic motor has a piezoelectric element having an electrode pattern and driven by a voltage signal to undergo expansion and compression. An oscillator is connected to the piezoelectric element and is vibrationally driven by the expansion and compression movement of the piezoelectric vibrator. A rotor is disposed on the oscillator to be frictionally driven by expansion and compression movement of the piezoelectric element. A pivot member is connected to a central portion of the rotor. A pressing member is in pressure contact with the pivot member for urging the rotor into pressure contact with the oscillator. The pressing member and the pivot member are comprised of different materials, and the material of the pivot member has a hardness greater than that of the pressing member.
摘要:
An ultrasonic motor has a piezoelectric element driven by application of a voltage thereto to undergo expansion and contraction. A vibrating body is vibrationally driven by the expansion and contraction movement of the piezoelectric element to thereby produce standing waves. A moving body is frictionally driven by the standing waves of the vibrating body. Power transmission projections apply a frictional force to the moving body to thereby frictionally drive the moving body in accordance with the standing waves. The power transmission projections are disposed only every preselected number of wavelengths at intermediate positions between loops and nodes of the standing waves, the preselected number being a natural number.
摘要:
An optical switch has an input section for inputting a light beam and movable optical members each comprised of a piezoelectric actuator for inputting the light beam from the input section and for individually switching an optical path of the light beam. Each of the piezoelectric actuators has a piezoelectric body for undergoing oscillating movement and a movable body frictionally driven by oscillating movement of the piezoelectric body. A driving control device drives the piezoelectric bodies of the piezoelectric actuators and controls positions of the piezoelectric bodies to switch the optical path of the light beam. An output section outputs the light beam from the piezoelectric actuators.
摘要:
An ultrasonic motor includes an oscillation drive circuit for generating an oscillation wave by self-excited oscillation of an oscillator bonded with a piezoelectric element, and a start/stop signal generating circuit for generating a signal for controlling the starting and stopping of the ultrasonic motor by bringing the oscillation drive circuit into an active state and a stop state, respectively. The oscillation drive circuit includes a power amplifier for amplifying an excitation signal, a capacitive circuit for adjusting a frequency of the excitation signal, and a switching circuit connected to a capacitive element of the capacitive circuit for short-circuiting terminals of the capacitive element based on an output signal of the start/stop signal generating circuit.
摘要:
A low cost portable dosing apparatus enables the dispensing rate to be changed while enabling solution to be continuously dispensed to the body. The solution to be dispensed into the body is stored in a tank unit. A pump unit pumps the solution from the tank unit into the body of the patient. A controller controls pump unit operation. The tank unit, pump unit, and controller are attached to a wrist strap so that they can be easily connected and disconnected from each other. A compact, thin ultrasonic motor with high output per unit size drives the pump unit. A smaller pump unit is thus available, improving the portability of the apparatus. The ultrasonic motor is also substantially free of misoperation resulting from exposure to magnetic fields because the ultrasonic motor is not magnetically driven. Reliability is therefore improved.
摘要:
In a moving mechanism, a contact is disposed on a moving body, and the contact is in contact with a positioning member so as to move the moving body by 180 degrees. With this structure, the accurate regulation of the position of the moving body can be realized with only a slight improvement in the conventional moving mechanism, and the object can be inexpensively realized. Also, since the position detecting means, the signal processing means, etc., are not required other than the moving mechanism, necessary and sufficient functions can be realized with the minimum structure without requiring excessive energy and space.
摘要:
A lower garnish arranged adjacent to the lower part of a tailgate includes a surface portion extending along an outer surface of an outer panel and a mounting portion disposed between the outer surface of the outer panel and an inner surface of the surface portion. The mounting portion includes a mounting seat extending along the outer surface of the outer panel and being mounted on the outer panel and a connecting wall connecting the mounting seat and the surface portion. The connecting wall has a first slit extending along a first direction directing from the surface portion toward the mounting seat and a second slit intersecting the first slit at right angles.
摘要:
The present invention provides an image forming apparatus in which a recording paper to which a toner has been transferred is guided by a guide member and transported to a nip region between two rotatable members that are pressed against each other, and the toner on the recording paper is fixed at the nip region. In this image forming apparatus, a conductive or semiconductive region and an insulating region that are to be brought into contact with the recording paper are sequentially arranged in a recording paper transport direction on a guide face of the guide member, the conductive or semiconductive region is grounded, and the insulating region includes an end portion of the guide member oriented in the recording paper transport direction.
摘要:
A fixing device is provided in which a rotation member and a roller are caused to rotate pressing against each other, a recording paper is sandwiched and transported in a nip region between the rotation member and the roller, a leading edge of a peeling plate is positioned with respect to a peripheral surface of the rotation member, and the recording paper is separated from the rotation member by the peeling plate. In this fixing device, a surface of the peeling plate faces a transport route of the recording paper. Furthermore, in this fixing device, a contact member is provided that contacts a rear surface of the peeling plate displaced in a direction in which the leading edge of the peeling plate approaches the peripheral surface of the rotation member and prohibits displacement of the peeling plate after contact of the peeling plate to the contact member.
摘要:
The disclosed method for producing a γ-oryzanol-containing fat or oil, the method comprising the steps of: (A) preparing a processed fat or oil having an oil layer and a soapstock (alkali-foots) layer containing a γ-oryzanol salt; and (B) adding an acid to the processed fat or oil of step (A) for transfer of γ-oryzanol from the soapstock layer to the oil layer, and collecting a fat or oil with an increased γ-oryzanol content, enables inexpensive production of a fat or oil containing γ-oryzanol at any desired concentration without restriction to the γ-oryzanol concentration in the raw fat or oil.