摘要:
The invention provides a driving unit of welding equipment capable of steadily implementing rotation-stop of a pressure application shaft without enlarging the diameter of a hole of a rotary shaft of the motor while the entire length of the welding equipment is shortened and an entire gun is rendered downsized, lightweight and compact. The driving unit of welding equipment provided with the pressure application shaft that is driven by the motor and has a portion to be pulled in the motor, wherein the rotary shaft of the motor is formed of a hollow shaft, a screw shaft is fixed to the rotary shaft and the pressure application shaft is provided with a nut to be screwed with the screw shaft, characterized in that the pressure application shaft has a notched face at one side or notched faces at both sides thereof in cross section in the direction at right angles to a shaft center thereof, wherein the notched face or notched faces serve as a rotation-stop mechanism and a part or whole of the counterpart bearing of the pressure application shaft is housed in the rotary shaft.
摘要:
The intruder detection device for deciding the occurrence of an invasion if an electric wave, which is received by a leakage transfer passage on the receiving side juxtaposed to a leakage transfer passage on the transmitting side for receiving a leakage electric wave from the transmitting leakage transfer passage, changes, and the intruder detection device comprises: a plurality of reference spectrum diffusion signal generating means; a plurality of correlating means configured together with the reference spectrum diffusion signal generating means on a common sensor card, for collating the output reference spectrum diffusion signal of the reference spectrum diffusion signal generating means with the received signal from the receiving leakage transfer passage; and setting means for adjusting the detection precision which is determined by the reference spectrum diffusion signal generating means and the correlating means.
摘要:
There is provided a driving unit of a welding equipment capable of reducing the size of the driving unit, of reducing the moment of inertia, and of being compact and having an excellent operability. The driving unit of a welding equipment provided with a pressure application shaft that is driven by a motor comprises a screw shaft provided integrally with or substantially integrally with a rotary shaft of the motor, a nut provided integrally with or substantially integrally with the pressure application shaft and is screwed with a screw of the screw shaft, and a baffling mechanism provided on the pressure application shaft, and wherein the rotary shaft of the motor is positioned substantially coaxially with the screw shaft and a rotary force outputted from the rotary shaft of the motor is converted into a reciprocating motion of the pressure application shaft.
摘要:
A cover is moved to an opened position or a closed position at a back side of an opening of a cabinet. A gap in which the cover can lie down is provided between an upper inner wall of the cabinet and a disk holder placed in an insertion completing position. A first guide groove and a second guide groove, in which a first guide pin and a second guide pin projected in a longitudinal direction from the cover slide, are respectively formed on cover retaining sections provided on both side surfaces of the cover. When each guide pin is guided along each guide groove, the cover draws a substantially arc-like trajectory along the inner wall of the cabinet and enters the gap from an upper end section of the cover. When the cover draws such a trajectory, an opening of a recording and reproducing apparatus into which a recording medium is inserted can be closed by the cover regardless of whether or not the recording medium has been inserted into the recording and reproducing apparatus. Furthermore, the cabinet of the recording and reproducing apparatus can be made compact.
摘要:
The present invention provides an optical recording medium using an amorphous-crystalline phase-change for recording and erasing, wherein reflectivity of an optical recording medium-constituting recording film in an amorphous state is larger than that of the optical recording medium-constituting recording film in a crystalline state, or wherein absorptivity of an optical recording medium-constituting recording film in an amorphous state is smaller than that of the optical recording medium-constituting recording film in a crystalline state.
摘要:
A method for producing a polyfluoropropionyl halide, which is characterized by oxidizing at least one dichloropentafluoropropane selected from 3,3-dichloro-1,1,1,2,2-pentafluoropropane and 1,3-dichloro-1,1,2,2,3-pentafluoropropane by oxygen under irradiation with light and in the presence of chlorine.The polyfluoropropionyl halide can be obtained from the dichloropentafluoropropane industrially advantageously in good yield. Further, in a gas phase reaction, the polyfluoropropionyl halide can be obtained in a very high reaction yield without decomposition of the desired product and without corrosion of the material for the reactor or the glass for the light source portion even in a reaction for a long period of time.
摘要:
The present invention relates to a benzofuran derivative having the following general formula (I), ##STR1## wherein R.sup.1 and R.sup.2 may be the same or different and represent a hydrogen atom or a lower alkyl group and R.sup.3 represents a group --CH.dbd.CH--CH.dbd.CH--CH.sub.3 or a group --(CH.sub.2).sub.4 CH.sub.3, a process for the preparation of the same, an anti-inflammation and anti-allergic agent comprising the same as an effective component, and a novel microorganism producing the compound.
摘要:
An edge connector (1) having metal latching devices (5) to latch and unlatch a circuit board (4) is disclosed. More particularly the latching devices (5) include a latching section (53) for latching the board (4) and an unlatching section (54) for releasing the board (4).
摘要:
A fuel cell comprises at least two cell members, each of which has a flat-plate solid electrolyte having a fuel electrode layer on one surface thereof and an air electrode layer on the other surface thereof, separators, each of which is arranged between the cell members and comprises frame materials and metallic sheets having concave and convex portions and being coupled to the frame materials, a fuel supply path for supplying fuel and an air supply path for supplying air, a fuel discharge path for disharging fuel and an air exhaust path for exhausting air and collector members mounted on the outer sides of the separators of the highest and lowest stages.Further, another fuel cell comprises at least two cell members, each of which has a flat-plate solid electrolyte layer on one surface thereof and an air electrode layer on the other surface thereof, metallic separators, each of which is arranged between the cell members and comprises a wave-form member, an upper flat-plate member and a lower flat-plate member, the wave-form member being put between the upper flat-plate member and the lower flat-plate member, a hole made in the upper flat-plate member for supplying fuel to the fuel electrode layer and a hole made in the lower flat-plate member for supplying air to the air cell member layer and a fuel supply path for supplying fuel and an air supply path for supplying air.