Abstract: A retaining ring 1 for a shaft 2a usable with a bearing 3 having an outer ring 3a and an inner ring 3b fixed on the shaft, wherein the inner ring 3b and the outer ring 3a are rotatable relative to each other, and the retaining ring 1 is provided on the shaft 2a adjacent to the bearing 3 in a thrust direction to restrict a position of the bearing 3 in the thrust direction, the retaining ring 1 includes a protrusion 1a protruding in the thrust direction from a surface opposing the inner ring 3b in the thrust direction to contact the inner ring 3b so that the retaining ring 1 is out of contact from the outer ring 3a.

Abstract: A retaining ring 1 for a shaft 2a usable with a bearing 3 having an outer ring 3a and an inner ring 3b fixed on the shaft, wherein the inner ring 3b and the outer ring 3a are rotatable relative to each other, and the retaining ring 1 is provided on the shaft 2a adjacent to the bearing 3 in a thrust direction to restrict a position of the bearing 3 in the thrust direction, the retaining ring 1 includes a protrusion 1a protruding in the thrust direction from a surface opposing the inner ring 3b in the thrust direction to contact the inner ring 3b so that the retaining ring 1 is out of contact from the outer ring 3a.

Abstract: Provided is a filter frame, including: a rectangular base part including plural engaging holes formed each side thereof; an extension portion extending outward from each of the sides and including plural engagement projections corresponding to the plural engaging holes; a termination portion formed at an end of the extension portion and including a bent portion; and a hinge coupling each extension portion with the rectangular base part, wherein the rectangular base part, the extension portions, the termination portions, and the hinges are formed integrally, wherein the rectangular base part allow a rectangular dust proof filter to be placed thereon, wherein the extension portions are bent at right angles to the rectangular base part, and then the extension portions are engaged with the rectangular base part so as to clamp the dust proof filter, and wherein the termination portions are elastically deformed and fixed to inner walls of a duct.

Abstract: A one-way clutch is configured to allow rotation in one direction with respect to a shaft and regulate rotation in the other direction, and includes a housing, a plurality of needles, a plurality of magnets, a plurality of first accommodating portions, and a plurality of second accommodating portions. The housing includes a fitting hole into which the shaft is fit. The plurality of magnets are respectively arranged adjacent to the plurality of needles. Each magnet has an S pole and an N pole corresponding to a first end side and a second end side of one of the needles, and attracts one of the needles by magnetic force to a first circumferential direction of the shaft. The plurality of first accommodating portions accommodate the plurality of needles, respectively. The plurality of second accommodating portions are respectively arranged adjacent to the first accommodating portions, and respectively accommodate the plurality of magnets.

Abstract: An insert nut, which is configured to be inserted into a substrate made of a resin, the insert nut including: an internal thread portion into which a screw is to be fastened; a recess-and-protrusion-shaped portion formed on an outer surface of the insert nut, the recess-and-protrusion-shaped portion including a plurality of ridges and a plurality of roots formed alternately in a circumferential direction; and a flange portion formed on one end side in a screw axial direction of the internal thread portion, wherein a nominal diameter of the screw to be fastened into the insert nut is 3 mm or more, and an outer diameter of the flange portion is 2.4 times or more and 4 times or less as large as the nominal diameter of the screw to be fastened into the insert nut.

Abstract: An insert nut, which is configured to be inserted into a substrate made of a resin, the insert nut including: an internal thread portion into which a screw is to be fastened; a recess-and-protrusion-shaped portion formed on an outer surface of the insert nut, the recess-and-protrusion-shaped portion including a plurality of ridges and a plurality of roots formed alternately in a circumferential direction; and a flange portion formed on one end side in a screw axial direction of the internal thread portion, wherein a nominal diameter of the screw to be fastened into the insert nut is 3 mm or more, and an outer diameter of the flange portion is 2.4 times or more and 4 times or less as large as the nominal diameter of the screw to be fastened into the insert nut.

Abstract: Provided is a filter frame, including: a rectangular base part including plural engaging holes formed each side thereof; an extension portion extending outward from each of the sides and including plural engagement projections corresponding to the plural engaging holes; a termination portion formed at an end of the extension portion and including a bent portion; and a hinge coupling each extension portion with the rectangular base part, wherein the rectangular base part, the extension portions, the termination portions, and the hinges are formed integrally, wherein the rectangular base part allow a rectangular dust proof filter to be placed thereon, wherein the extension portions are bent at right angles to the rectangular base part, and then the extension portions are engaged with the rectangular base part so as to clamp the dust proof filter, and wherein the termination portions are elastically deformed and fixed to inner walls of a duct.

Abstract: A frame for sandwiching and holding a filter includes a first frame portion, a second frame portion, a plurality of first tapered projections, and a plurality of second tapered projections. At least the first tapered projections are disposed so as to be sandwiched by the second tapered projections with respect to an arrangement direction. Shapes, in a section in a plane perpendicular to the arrangement direction of at least one of the first tapered projections and the second tapered projections, of the at least one of the first tapered projections and the second tapered projections have first sides substantially perpendicular to a bottom thereof and second sides inclined with respect to the bottom.

Abstract: A filter frame includes a first frame portion that includes a filter installation surface for installing a filter, a second frame portion that retains the filter by holding the filter between the first frame portion, and a hinge portion that connects the first frame portion and the second frame portion. The first frame portion has a plurality of fitting projections and an arm provided on a filter installation surface of the first frame portion so as to extend between a plurality of fitting projections. The second frame portion has a plurality of fitting portions for receiving the plurality of fitting projections, and a cutout provided in a side of the frame facing the side in which the second frame portion is connected to the first frame portion by the hinge portion.

Abstract: A one-way clutch is configured to allow rotation in one direction with respect to a shaft and regulate rotation in the other direction, and includes a housing, a plurality of needles, a plurality of magnets, a plurality of first accommodating portions, and a plurality of second accommodating portions. The housing includes a fitting hole into which the shaft is fit. The plurality of magnets are respectively arranged adjacent to the plurality of needles. Each magnet has an S pole and an N pole corresponding to a first end side and a second end side of one of the needles, and attracts one of the needles by magnetic force to a first circumferential direction of the shaft. The plurality of first accommodating portions accommodate the plurality of needles, respectively. The plurality of second accommodating portions are respectively arranged adjacent to the first accommodating portions, and respectively accommodate the plurality of magnets.

Abstract: A one-way clutch includes: an inner ring provided with an inserting opening for permitting insertion of a rotation shaft and rotatable integrally with the rotation shaft by being engaged with the rotation shaft; an outer ring engaged with an outer peripheral surface of the inner ring and rotatable in one direction relative to the inner ring and non-rotatable in a direction opposite to the one direction; and an elastic metal plate member, engaged with the inner ring, for limiting movement of the inner ring relative to the outer ring in a rotational axis direction of the outer ring. When the rotation shaft is mounted in the inner ring, the elastic metal plate member includes a leaf spring portion positioned and elastically deformable in a gap between the rotation shaft and the inner ring.

Abstract: A filter frame for holding a filter provided with a plurality of folds so as to alternately form ridges and troughs includes: a first frame portion including a first holding portion, having a side corresponding to a first side of the filter, for holding the filter; a positioning portion, provided on the first holding portion, for determining a position of the filter; and a second frame portion including a second holding portion for holding the filter by sandwiching the filter between the first and second holding portions. The second holding portion is provided so as to be capable of opposing the first holding portion via the filter and has a side corresponding to a second side of the filter.

Abstract: A frame for sandwiching and holding a filter includes a first frame portion, a second frame portion, a plurality of first tapered projections, and a plurality of second tapered projections. At least the first tapered projections are disposed so as to be sandwiched by the second tapered projections with respect to an arrangement direction. Shapes, in a section in a plane perpendicular to the arrangement direction of at least one of the first tapered projections and the second tapered projections, of the at least one of the first tapered projections and the second tapered projections have first sides substantially perpendicular to a bottom thereof and second sides inclined with respect to the bottom.

Abstract: A filter frame for holding a filter provided with a plurality of folds so as to alternately form ridges and troughs includes: a first frame portion including a first holding portion, having a side corresponding to a first side of the filter, for holding the filter; a positioning portion, provided on the first holding portion, for determining a position of the filter; and a second frame portion including a second holding portion for holding the filter by sandwiching the filter between the first and second holding portions. The second holding portion is provided so as to be capable of opposing the first holding portion via the filter and has a side corresponding to a second side of the filter.

Abstract: A casing for containing electronic equipment includes a casing member of the metal plate having an opening; a closing member for closing the opening; a first inclined plate portion provided at an edge of the opening, the first inclined plate portion being inclined relative to a plate portion of the casing member and being provided by bending the casing member; a second inclined plate portion provided at a edge of the closing member, the second inclined plate portion being provided by bending the closing member, and the second inclined plate portion being opposed to the first inclined plate portion when the closing member is mounted to close the opening; and an elastic member having an electroconductivity and provided compressed between the first inclined plate portion and the second inclined plate portion.

Abstract: A one-way clutch includes: an inner ring provided with an inserting opening for permitting insertion of a rotation shaft and rotatable integrally with the rotation shaft by being engaged with the rotation shaft; an outer ring engaged with an outer peripheral surface of the inner ring and rotatable in one direction relative to the inner ring and non-rotatable in a direction opposite to the one direction; and an elastic metal plate member, engaged with the inner ring, for limiting movement of the inner ring relative to the outer ring in a rotational axis direction of the outer ring. When the rotation shaft is mounted in the inner ring, the elastic metal plate member includes a leaf spring portion positioned and elastically deformable in a gap between the rotation shaft and the inner ring.

Abstract: A filter frame includes a first frame portion that includes a filter installation surface for installing a filter, a second frame portion that retains the filter by holding the filter between the first frame portion, and a hinge portion that connects the first frame portion and the second frame portion. The first frame portion has a plurality of fitting projections and an arm provided on a filter installation surface of the first frame portion so as to extend between a plurality of fitting projections. The second frame portion has a plurality of fitting portions for receiving the plurality of fitting projections, and a cutout provided in a side of the frame facing the side in which the second frame portion is connected to the first frame portion by the hinge portion.

Abstract: An insert nut, which is configured to be inserted into a substrate made of a resin, the insert nut including: an internal thread portion into which a screw is to be fastened; a recess-and-protrusion-shaped portion formed on an outer surface of the insert nut, the recess-and-protrusion-shaped portion including a plurality of ridges and a plurality of roots formed alternately in a circumferential direction; and a flange portion formed on one end side in a screw axial direction of the internal thread portion, wherein a nominal diameter of the screw to be fastened into the insert nut is 3 mm or more, and an outer diameter of the flange portion is 2.4 times or more and 4 times or less as large as the nominal diameter of the screw to be fastened into the insert nut.

Abstract: Provided is a screw fastening structure for fastening a shoulder screw to a thin metal plate member (114). Half-punched portions (141 to 144) are formed radially from a center of a through hole (115) in the thin plate member (114) by half punching so as to be alternately recessed and protruded in a circumferential direction. Further, a threaded portion (133) is formed by tapping in the through hole (115) provided at substantially the center position of the half-punched portions. Then, a member to be fastened (102) is fastened to the thin plate member (114) with a screw.

Abstract: A filter frame for holding a filter provided with a plurality of folds so as to alternately form ridges and troughs includes: a first frame portion including a first holding portion, having a side corresponding to a first side of the filter, for holding the filter; a positioning portion, provided on the first holding portion, for determining a position of the filter; and a second frame portion including a second holding portion for holding the filter by sandwiching the filter between the first and second holding portions. The second holding portion is provided so as to be capable of opposing the first holding portion via the filter and has a side corresponding to a second side of the filter.