52results about How to "Flatness is easy to guarantee" patented technology

A reflective screen includes a light reflecting layer, and a light diffusing layer provided on the light reflecting layer. The light diffusing layer has the diffusion property that in one (A axis) of two perpendicular axial directions on a light diffusion plane, a luminance distribution curve versus incidence angle is asymmetric with respect to the zero-incidence-angle axis, and the side on which the incidence angle (half-luminance incidence angle) with half of a peak luminance on the A axis in the normal direction to the screen plane is small faces in a direction in which external light has the highest strength.

An improved clutch or brake device in which at least two members are mounted for relative rotation and engagement, the members having friction material rotatable therewith, and the friction material of the members having surfaces confronting each other, characterized in that the friction material has a solid density of greater than 30% and includes an open lattice of carbon ligaments forming a network of three dimensionally interconnected cells; and a pyrolytic carbon coating on the open lattice of carbon ligaments.

There are provided n number of line-type inkjet nozzles (2) which include nozzles (4) that eject a liquid material and are arranged in a row, and which are arranged in parallel with each other so that positions of the nozzles (4) are shifted from each other by 1 / n of a nozzle pitch (P1). Thus, an inkjet head (1) as a whole has a state equivalent to a state in which the nozzles (4) are arranged at 1 / n of a nozzle pitch of one line-type inkjet nozzle (2). The inkjet head (1) is capable of adjusting a timing of ejecting the liquid material for each line-type inkjet nozzle (2). Accordingly, adjustment of a dot pitch such as fine coating and rough coating can be performed with ease.

There are provided n number of line-type inkjet nozzles (2) which include nozzles (4) that eject a liquid material and are arranged in a row, and which are arranged in parallel with each other so that positions of the nozzles (4) are shifted from each other by 1 / n of a nozzle pitch (P1). Thus, an inkjet head (1) as a whole has a state equivalent to a state in which the nozzles (4) are arranged at 1 / n of a nozzle pitch of one line-type inkjet nozzle (2). The inkjet head (1) is capable of adjusting a timing of ejecting the liquid material for each line-type inkjet nozzle (2). Accordingly, adjustment of a dot pitch such as fine coating and rough coating can be performed with ease.

The invention relates to a three-workpiece simultaneous bonding tool which comprises a base (4). The tool is characterized in that a first positioning piece (1) used for supporting and positioning a first workpiece to be bonded, a second positioning piece (2) used for supporting and positioning a second workpiece to be bonded and a third positioning piece (3) used for supporting and positioning athird workpiece to be bonded are arranged on the base (1), the height of the supporting surface of the second positioning piece (2) is larger than that of the first positioning piece (1), the second positioning piece (2) is an elastic piece, the supporting surface of the second positioning piece (2) can move under the action of external force, the third positioning piece (3) is arranged on a supporting plate (5), a first driving device (6) is in driving connection with the supporting plate (5) so as to move the third positioning piece (3) up and down, the base (1) is further provided with a second driving device (7), the second driving device (7) is in driving connection with a pressing plate (75), and the pressing plate (75) is located above the positioning pieces.

The invention discloses a prefabricated fabricated type structure of an external wall, and relates to the field of constructional engineering. The prefabricated fabricated type structure of the external wall is composed of a thermal insulating composite wall standard piece and an auxiliary structure; the thermal insulating composite wall standard piece comprises a prefabricated type external wallload-bearing wall standard piece, a prefabricated type external wall non-bearing wall standard piece and a prefabricated type external wall load-bearing wall internal and external corner standard piece; and the prefabricated type external wall load-bearing wall standard piece is provided with an assembly type oppositely-pulling rod which is used for positioning and installing of a load-bearing wall construction formwork. According to the prefabricated fabricated type structure of the external wall, the structure is simple, economical and reasonable, the technology is advanced, using is convenient, and the prefabricated fabricated type structure is the best construction method of a composite wall structure and has good popularizing value.

An isolator with resistive termination and carbon steel housing wherein required magnetic performance is combined with improved efficiency of transmission of heat from termination to the heat sink. The improvement is achieved due to the copper / aluminum plug that mechanically and electrically connects the soldering base of termination to the base of isolator, which in operation is installed on the heat sink. The plug is pressed into the housing from the base side to provide tight coplanarity tolerance to exposed end of the plug and the base without any secondary machining. The termination is soldered to the opposite end of the plug, which is flush to or slightly above the top surface of the housing. Thus, magnetic flux required for operation of isolator is looped through a material having good magnetic susceptibility, and heat from the termination is transmitted to the heat sink through a material having high coefficient of heat transmission. Another embodiment of the structure is also described in this disclosure. In second embodiment, the entire housing is made of copper / aluminum, but a magnetic chamber of carbon steel supporting the magnetic loop is pressed into the housing. The termination is soldered directly to the housing and, therefore, the same efficiency for the heat dissipation as for the preferred embodiment is achieved.

The invention relates to a three-workpiece simultaneous bonding tool which comprises a base (4). The tool is characterized in that a first positioning piece (1) used for supporting and positioning a first workpiece to be bonded, a second positioning piece (2) used for supporting and positioning a second workpiece to be bonded and a third positioning piece (3) used for supporting and positioning athird workpiece to be bonded are arranged on the base (1), the height of the supporting surface of the second positioning piece (2) is larger than that of the first positioning piece (1), the second positioning piece (2) is an elastic piece, the supporting surface of the second positioning piece (2) can move under the action of external force, the third positioning piece (3) is arranged on a supporting plate (5), a first driving device (6) is in driving connection with the supporting plate (5) so as to move the third positioning piece (3) up and down, the base (1) is further provided with a second driving device (7), the second driving device (7) is in driving connection with a pressing plate (75), and the pressing plate (75) is located above the positioning pieces.

The invention provides a novel single-spiral-tube type change-over switch. The switch comprises a relay assembly, a reed transmission mechanism and a transmission line assembly; the relay assembly comprises an iron core assembly, a gasket, an insulation spacer, a pad reed, an upper end cover, a clamping reed, a sleeve II, a coil assembly, a push ring, a magnetic steel, a coil protection sheet and a coil reed; the iron core assembly is successively provided with a push rod, an iron core, a clamping reed, a pad reed and a lower end cover from top to bottom; the reed transmission mechanism comprises a main reed assembly, a movable reed mounting plate, movable reeds and screw studs; and the transmission line assembly comprises four reed assemblies, four radio-frequency connectors and a radio-frequency cavity, and radio-frequency reeds are disconnected with the radio-frequency connectors in the absence of an external force. Only one iron core assembly drives a main reed and the movable reeds to achieve switching of the change-over switch, and flatness of the main reed and flatness of the movable reeds are easy to guarantee; and on one aspect, electromagnetic holding forces and drive forces of various paths are almost the same, and, on the other aspect, probability of change-over switch failure caused by a movement assembly failure is greatly reduced.

To provide a head leading member with which it is possible to inexpensively lead a head with a high level of accuracy. A head leading member is a head leading member, provided in a printing machine that includes a head to discharge ink toward a working surface, for leading the head in a main travelling direction; and the head leading member comprises; a frame extending in the main travelling direction; a base member fixed to the frame, and having a guiding reference surface that is performed with a manufacture so as to be planar along the main travelling direction, in a state of being fixed to the frame; and a guide member extending in the main travelling direction and being supported on the guiding reference surface of the base member, in order to lead the head in the main travelling direction.