摘要:
To provide a screw fastening device that, when performing a screw tightening operation, can substantially reduce the running torque directly applied by external force to a screw driving device.A characteristic constitution is adopted that is equips a screw driving device α2 with a device body 1 that stacks a plurality of piezoelectric elements 3 and 4 that generate predetermined ultrasonic oscillations with the application of a predetermined AC voltage and excites mechanical oscillations in a predetermined direction on an oscillating end surface 1a based on the ultrasonic oscillations; and a male distal end portion 21 that is correspondingly formed to be capable of fitting in a female recess 103 formed in a screw β1 and integrally fixed to the device body 1 on the oscillating end surface 1a of the device body 1 to impart running torque, which is directly applied to the screw driving device α2 by external force, and transmit the mechanical oscillations in the predetermined direction that the device body 1 excites to the screw β1, with which contact is made by fitting in the female recess 103.
摘要:
To provide a screw fastening device that, when performing a screw tightening operation, can substantially reduce the running torque directly applied by external force to a screw driving device.A characteristic constitution is adopted that is equips a screw driving device α2 with a device body 1 that stacks a plurality of piezoelectric elements 3 and 4 that generate predetermined ultrasonic oscillations with the application of a predetermined AC voltage and excites mechanical oscillations in a predetermined direction on an oscillating end surface 1a based on the ultrasonic oscillations; and a male distal end portion 21 that is correspondingly formed to be capable of fitting in a female recess 103 formed in a screw β1 and integrally fixed to the device body 1 on the oscillating end surface 1a of the device body 1 to impart running torque, which is directly applied to the screw driving device α2 by external force, and transmit the mechanical oscillations in the predetermined direction that the device body 1 excites to the screw β1, with which contact is made by fitting in the female recess 103.
摘要:
A communication terminal device and a method for controlling the same which can operate a mail restriction function effectively without increasing a mail address registered for the mail restriction function are provided. The transmission and the reception of the mail is restricted by storing by a domain conversion table a corresponding relationship between an original domain by the automatic address conversion unit and the domain after the conversion, acquiring by the original domain acquiring unit the original domain based on the domain of the mail address converted by the automatic address conversion unit by referring to the domain conversion table, and controlling by the mail transmission and reception control means the transmission and the reception of the mail by comparing the mail address replaced with the domain of the mail address of the transmitting/receiving mail by the original domain acquired by the original domain acquiring unit with the registered mail address.
摘要:
A resin molded type semiconductor device has an inner portion sandwiched between two outer surfaces. The device includes a chip support with a first, inwardly facing surface and a second, outwardly facing surface. The device also includes a semiconductor element with a first, inwardly facing surface and a second, outwardly facing surface. The respective first surfaces of the chip support and semiconductor element are fixed to each other. A mold resin is provided to seal the entire semiconductor device except for the respective second surfaces of the chip support and semiconductor element which remain exposed as part of the two outer surfaces of the device, in order to keep the semiconductor device thin.
摘要:
Disclosed is an alkaline storage battery, in which the negative electrode is constituted by a hydrogen absorbing alloy capable of absorbing/desorbing hydrogen electrochemically, and a hydrophobic material is provided in the space between the surface of the negative electrode and the separator while a hydrophilic material is provided in the inside of the negative electrode, thereby properly secure both wetting property and surface hydrophobic property of the negative electrode against the alkaline electrolytic solution. Accordingly, a hydrogen gas generated in charging the battery can be absorbed by a vapor phase reaction in the hydrophobic portion in the surface of the negative electrode which is exposed to the vapor phase and can be absorbed electrochemically in the portion of the negative electrode which is wetted by the electrolytic solution, so that the inner pressure of the battery can be reduced to thereby make it possible to perform quick charging.
摘要:
Disclosed is an alkaline storage battery, in which the negative electrode is constituted by a hydrogen absorbing alloy capable of absorbing/desorbing hydrogen electrochemically, and a hydrophobic material is provided in the space between the surface of the negative electrode and the separator while a hydrophilic material is provided in the inside of the negative electrode, thereby properly secure both wetting property and surface hydrophobic property of the negative electrode against the alkaline electrolytic solution. Accordingly, a hydrogen gas generated in charging the battery can be absorbed by a vapor phase reaction in the hydrophobic portion in the surface of the negative electrode which is exposed to the vapor phase and can be absorbed electrochemically in the Portion of the negative electrode which is wetted by the electrolytic solution, so that the inner pressure of the battery can be reduced to thereby make it possible to perform quick charging.
摘要:
A copying paper processing apparatus comprises a sorter, a stapling device for stapling sheets of copying paper sorted by the sorter, and a device for automatically selecting and setting a sort mode when a staple mode is selected and set. The processing apparatus may comprise a switch for selecting the stapling operation, and a device for automatically selecting and setting a staple mode when the staple selecting switch is turned on and a sort mode is selectively set. The processing apparatus may comprise a device for transmitting a signal indicating that there is no staple needle when the number of staple needles left in the stapling device is a predetermined number greater than the total number of bins of the sorter. The processing apparatus may comprise a device for inhibiting the operation of the stapling device when one of sensors respectively disposed in a paper-receiving base of the stapling device and a sorter bin of the sorter detects that there is no paper.
摘要:
A sealed type nickel-hydride battery comprising a positive electrode made of nickel oxides and/or Ni(OH).sub.2 as an active material, a negative electrode made of hydrogen storage alloys as main materials which may absorb and desorb hydrogen as an active material electrochemically, an alkaline electrolyte, and a separator. Prior to sealing in a battery case, the positive electrode contains cobalt and/or cobalt hydroxide having an oxidation potential lower than that of nickel hydroxide and the negative electrode is not subjected to a sufficient precharge as required for the substantial battery capacity to be limited by the capacity of the positive electrode. The battery is sealed in this state, and at an initial charge, the cobalt and/or cobalt oxides are charged and a precharged section absorbed hydrogen is formed in a negative electrode corresponding to the charge capacity of the cobalt and/or cobalt oxides.
摘要:
A sealed storage battery comprises a positive electrode including a metallic oxide as an active material, a negative electrode including hydrogen-storage-alloy powder capable of electrochemically charging and discharging hydrogen as an active material, an alkaline electrolyte, and two separators (12a and 1 2b) for absorbing and retaining the alkaline electrolyte. The hydrogen-storage-alloy power has a crystal structure and is provided with numerous irregularities on the surface thereof, and has SF-value of 2.5 or below, which SF-value represents a plateau characteristic of equilibrium pressure of released hydrogen. The numerous irregularities on the surface of the alloy powder cause oxygen being generated from the positive electrode to be eliminated promptly.