摘要:
The entire part of a rear surface 2 of a nozzle plate 1 excluding peripheral portions 6 of nozzle holes 4 is coated with a resist tape, and this nozzle plate 1 is immersed in an electrolytic solution in which ions of a metal and particles of a water-repellent resin are dispersed to provide a plating thereon, and the plated nozzle plate 1 in the electrolytic solution is then heated to a temperature that is higher than a melting point of the water-repellent resin, whereby an entire portion extending from a front surface 3 of the nozzle plate 1 and the nozzle holes 4 contiguous to the front surface to the rear surface 2 is provided with a eutectoid plating layer 8 to suppress deviation of the passage of ink droplets due to wetting by an ink or the like.
摘要:
The invention provides a working machine of a hydraulic backhoe in which the blade tip force can be increased over a wide range of operations, which has a great blade tip force at the start of excavation, and which can increase working efficiency by avoiding obstacles. For these purposes, a second link pivotally connected to third fulcrums (6, 13) provided in common at a leading end of an arm cylinder (4) and one end of a first link (10) and to a second fulcrum (12) of an arm (2) is a hydraulic correction cylinder (11). A working hydraulic circuit for the arm cylinder (4) and the correction cylinder (11) may constitute a series circuit having a circuit (24) connecting a head side oil chamber (20) of the arm cylinder (4) to a bottom side oil chamber (23) of the correction cylinder (11).
摘要:
Hydraulically-operated equipment such as travelling equipment or working equipment for use in construction machinery such as a power shovel, shoveldozer and bulldozer. The hydraulically-operated equipment comprises a hydraulic driving mechanism actuated by hydraulic pressure, a hydraulic pressure supplying device for supplying hydraulic pressure to a hydraulic pipeline system for the hydraulic driving mechanism and a controller for controlling the hydraulic pressure supplying device such that the supplying rate at which hydraulic pressure is supplied to the hydraulic pipeline system according to the supply of hydraulic pressure is decreased in a specified period after a dead zone period in which hydraulic pressure starts to rise. This arrangement prevents an operational lag in the hydraulic driving mechanism as well as a shock at the time of start-up and shut-down.
摘要:
An off-road vehicle contains a floor panel including a first inclined portion facing the seat and forming a foot rest and a second inclined portion disposed adjacent to and facing the seat and having an irregularly formed surface thereon to protect the driver against slipping upon entering and existing the vehicle. The second inclined portion has an angle of inclination less than that of the first inclined portion and has surface irregularities comprising longitudinally spaced flats interconnected by angularly displaced surface sections.
摘要:
A method of preparing continuous label paper from a continuous paper consisting of a label sheet coated with an adhesive on the back side thereof and a support sheet detachably adhered to the back side of the label sheet and which sheets are wider than a finished width of the continuous label paper. The steps include forming a plurality of transfer holes at equal intervals along both lateral edges of the finished width of at least the supporting sheet of the continuous paper, forming slits along the side portions of the supporting sheet at positions corresponding to the finished width of the continuous label paper to define excess width portions laterally outwardly of the slits, cutting cut lines in the label sheet to form label pieces in the label sheet spaced at intervals therealong, cutting edge lines in the label sheet adjacent lateral edge portions thereof at positions where the edge lines do not overlie portions of the support sheet corresponding to transfer holes, and which edge lines have an irregular shape defining projections extending closer to the lateral edges of the finished width of the supporting sheet than the positions of the transfer holes, thereby defining unnecessary label sheet portions laterally outwardly of the edge lines, and after the edge line cutting step and the slit forming step, simultaneously removing the excess width portions and the unnecessary label sheet portions from the supporting sheet.
摘要:
An image data reading apparatus includes a photoelectric conversion device for converting image data on an original into electric signals, a light source for illuminating the original, a detector for detecting the shading correction values for the light source and the photoelectric conversion device, and an image processor for effecting shading correction on the video data output from the photoelectric conversion device with the shading correction value detected by the correction value detector.
摘要:
A start-fuel supply device in an internal combustion engine for a portable equipment comprising a start-fuel primer pump rotatively coupled to a starter motor of the engine, a fuel metering device for receiving a charge of fuel from a metering chamber of a carburetor during the reverse rotation of the start-fuel primer pump, and a fuel nozzle for injecting fuel from the fuel metering device to an air intake passage of the carburetor during the normal rotation of the fuel-start primer pump. A passage portion between the fuel metering device and the start-fuel primer pump is connected to a fuel reservoir through a by-pass passage provided with a check valve which allows a flow from the fuel metering device to the fuel reservoir.
摘要:
A rotary compressor is comprised of a first housing having an intake chamber for receiving therein a fluid of variable pressure, and a second housing having an inner peripheral surface to define a working chamber and an inlet communicating between the working and intake chambers. A rotor is rotatably mounted in the working chamber and has a vane slidably supported in the rotor to maintain contact with the inner peripheral surface of the second housing during the rotation of the rotor to thereby compress the fluid flowing into the working chamber through the inlet. A rotary valve is rotatably disposed between the intake chamber and working chamber for regulating the flow rate of the fluid flowing through the inlet in response to angular displacement of the rotary valve. A piston is slidably disposed in a cylinder provided in the first housing. The piston has a front end exposed to the fluid in the intake chamber through one opening of the cylinder and a rear end exposed to the outside through the other opening of the cylinder so that the piston undergoes linear displacement in the cylinder in response to the variable fluid pressure applied to the front end of the piston. The linear movement of the piston is converted by a mechanical link into the angular displacement of the rotary valve.
摘要:
A control apparatus including an operating panel means having illuminable switches which produce operation data upon operation by an operator and which display by illumination the status of operation of a machine equipment to be controlled, and an external control means which controls the machine equipment in a sequential manner according to a predetermined program on the operation data provided from the operating panel means and detection signals provided from the machine equipment and which illuminates the illuminable of the operating panel means. The operation panel means has an operating panel composed of a large number of such illuminable switches arranged in a matrix form. A specific operation data is produced by operation of a predetermined illuminable switch in the operating panel and the status of operation of the machine equipment is displayed by illumination of the operated illuminable switch. Even when the object of control or the contents of operation are changed, it is not necessary to redesign the entire apparatus, therefore a more efficient design work and the reduction of cost can be attained.
摘要:
A rotary throttle valve carburetor in which the rotary valve is assembled with an operating lever, a needle valve and a carburetor body cover in such a way that the lever may be operated from opposite sides of the carburetor by orienting the assembly in the carburetor body in one of two positions 180.degree. apart. A cam is interposed between the operating lever and the cover to shift the rotary valve and the needle valve axially with rotation of the valves to regulate the needle valve relative to a fuel nozzle port.