摘要:
An electric motor assembly for driving an air blower is disclosed. The assembly comprises a casing of metal, the casing having opposed open ends closed by respective covers of metal; a rotation shaft rotatably disposed in the casing, the rotation shaft having one end exposed to the outside through an opening formed in one of the covers, the one end being adapted to connect to a fan of the air blower; a plurality of magnets installed in the casing and circumferentially surrounding the rotation axis; an armature mounted to the rotation shaft to rotate therewith; a commutator mounted to the rotation shaft and electrically connected with the armature; brushes operatively contacting with the commutator and supported by the casing; and an electric power feeding device for feeding the brushes with an electric power. A pulse width modulating device is further employed which is electrically connected with the power feeding device for modulating the electric power by means of a pulse width modulation method. The pulse width modulating device is installed in the casing for radio noise suppression.
摘要:
This invention relates to an anti-counterfeit printed matter, including securities such as banknotes, stock certificates, and bonds, various kinds of certificates, and important documents, which requires anti-counterfeit or anti-copy.[Solving Means] A visible image is formed by a first object group arrayed in a first direction at a predetermined pitch and a second object group arranged in the non-imaging area of the first object group. The second object group forms the negative and positive images of a first invisible image by arbitrarily arranging two kinds of objects in pairs in the on/off relationship. Addition, in the anti-counterfeit printed matter, the first object group includes object portions that are formed in at least two height levels from the surface of the printed matter so as to have a predetermined difference in height, thereby forming a second invisible image.
摘要:
A magnetic resolver that includes: an annular stator portion having a protruding core; an annular coil substrate on which a coil portion, which is disposed around the protruding core, is formed as a patterned thin-film coil; and a rotor portion disposed to face the stator portion from above, with the coil substrate interposed therebetween, wherein the amount of overlap between a top face of the protruding core and the rotor portion, when viewed from above, varies as a rotation angle of the rotor portion relative to the stator portion varies. The annular coil substrate may be constituted of substrate pieces that have shapes obtained by dividing the annular shape, which facilitates increasing the yield rate in the number of substrate pieces that can be produced from a substrate material.
摘要:
A vehicle seat having a supporting device includes a lower rail fixed to a vehicle floor, an upper rail supported by the lower rail so as to be slidable in a front-rear direction, a lower arm fixed to the upper rail, a supporting cover provided at the side of a door so that a passenger gets in/out of the vehicle interior with putting his/her hand on the supporting cover, a bracket for supporting the supporting cover from underneath thereof, an upper surface portion formed in a plate shape at the bracket so as to extend in an approximately horizontal direction, an extending portion formed in a plate shape at the bracket extending downward from the upper surface portion and forming a vertical portion at which the bracket is fastened to the lower arm, and a through hole formed on the upper surface portion of the bracket.
摘要:
Encrypted communications are performed between private networks over a wide-area network (e.g., the Internet) by way of routers, each of which includes a management table for storing entries including identifiers and control parameters. Uplink control connections are established between routers so as to mutually communicate and update stored contents of management tables therebetween. Updated stored contents of management tables are subjected to publication to other routers. Alternatively, stored contents of management tables are periodically subjected to publication to other routers. Thus, it is possible for operations managers to reduce manual operations for setting up control parameters in management tables of routers.
摘要:
A power supply device comprises a bidirectional voltage converter unit that performs voltage stepping up or voltage stepping down between a first terminal and a second terminal; a first switching unit that applies a DC voltage obtained from the first electric power supply source to the first terminal; a second switching unit that applies a DC voltage obtained from the second electric power supply source to the first terminal; a third switching unit that applies a DC voltage obtained from the first electric power supply source to the second terminal; an output unit that outputs a predetermined DC voltage from the second terminal; and a switching control unit that controls switching of the first switching unit, the second switching unit and the third switching unit.
摘要:
A magnetic resolver includes a stator core made of magnetic material, coils, and a rotor. The stator core has a base plate and protrusions formed integrally with the base plate so as to protrude from a surface of the base plate in the thickness direction. The coils are provided around the respective protrusions. The rotor is disposed so as to face the surface of the base plate with the coils interposed therebetween. The overlapping area between the rotor and each of the protrusions changes with a change in a rotation angle of the rotor relative to the stator core. The stator core has through-holes that pass through the base plate and the respective protrusions in the thickness direction.
摘要:
Encrypted communications are performed between private networks over a wide-area network (e.g., the Internet) by way of routers, each of which includes a management table for storing entries including identifiers and control parameters. Uplink control connections are established between routers so as to mutually communicate and update stored contents of management tables therebetween. Updated stored contents of management tables are subjected to publication to other routers. Alternatively, stored contents of management tables are periodically subjected to publication to other routers. Thus, it is possible for operations managers to reduce manual operations for setting up control parameters in management tables of routers.
摘要:
The invention provides a novel water-swellable caulking material which is a composite body of stratified structure composed of at least one rubbery layer swellable in water comprising highly water absorbing resin dispersed in the matrix of a rubber and at least one rubbery layer not swellable in water integrally bonded together, which latter serves to resist the expansion of the former layer when swollen in water in the directions other than the direction perpendicular to the plane of the layers. The inventive caulking material can exhibit unexpectedly excellent water sealing effect with easiness in handling in addition to the rapidity in water absorption by virtue of the structure thereof preventing the expansion of the material in the directions of length and width without decreasing the expansion in the direction of thickness.
摘要:
A variable reluctance resolver includes a rotor that rotates about a rotational axis, a plurality of detection coils that detect rotation of the rotor, and a magnetic member that magnetically connects adjacent ones of the detection coils to each other. The magnetic member includes a pair of body portions around which the detection coils are wound, and a connection portion that connects the pair of body portions to each other. Both the body portions and the connection portion have a thin flat shape. The body portions are flat so that a direction of extension of the flat shape is along a rotational axis direction, and the magnetic member has a U shape as viewed from the rotational axis direction.