Abstract: A child car seat comprises a seat body including a seat wall and a backrest wall, and a V-shaped shield structure extending from above both shoulders to a crotch of a child. The V-shaped shield structure includes a belt extending in the shape of the letter V, a belt guiding member guiding the belt and an elastic cover surrounding the belt guiding member.

Abstract: A plurality of converter circuits is connected in parallel while reducing conduction loss. A converter circuit is formed on each of a plurality of circuit boards, and a plurality of types of terminal connection patterns containing power input terminal connection patterns and power output terminal connection patterns are formed on the end portions of each of the circuit boards with the disposition positions substantially matching each other. The terminal connection patterns at the same position of each circuit board are sandwiched by each of clips of a common terminal member, each of the circuit boards is laminated and fixed, and the converter circuits of each of the circuit boards are connected in parallel. The conduction path for electrically connecting the converter circuit of each circuit board becomes short, making it possible to reduce conduction loss.

Abstract: A high speed tool steel, which is high in impact value and free from variations in tool performance, comprising, by mass %, of: 0.4≦C≧0.9; S1≦1.0; Mn≦1.0; 4≦Cr≧6; 1.5-6 in total of either or both of W and Mo in the form of (1/2 W+Mo) wherein W≦3; 0.5-3 in total of either or both of V and Nb in the form of (V+Nb); wherein carbides dispersed in the matrix of the tool steel have an average grain size of ≦0.5 &mgr;m and a dispersion density of particles of the carbides is of ≧80×103 particles/mm2.

Abstract: A plurality of module substrates have circuit boards, respectively. The circuit boards are stacked with a space therebetween, and are connected to first end portions of connecting members. The second end portions of the connecting members are connected to connecting pads disposed on a motherboard. The module substrates are thus stacked and mounted on the motherboard so as to increase the mounting density. By causing the connecting members for the upper circuit board to project further than the connecting members for the lower circuit board, the connecting members for the upper and lower circuit boards are prevented from touching each other.

Abstract: A circuit module has a circuit board on which electronic components are mounted and a covering member which has a plate portion and one or more supporting portions. The supporting portions fix the plate portion parallel to the surface of the circuit board. The covering member can be chucked by a chucking device to mount the circuit module to a mother circuit board.

Abstract: A child car seat comprises a seat body including a seat wall and a backrest wall, and a V-shaped shield structure extending from above both shoulders to a crotch of a child. The V-shaped shield structure includes a belt extending in the shape of the letter V, a belt guiding member guiding the belt and an elastic cover surrounding the belt guiding member.

Abstract: A dynamo-electric machine includes a commutator secured around a rotatable shaft and a plurality of carbon brushes placed in sliding contact with the commutator. The commutator has a sliding contact surface placed in sliding contact with the carbon brushes. The sliding contact surface of the commutator has a plurality of peaks and valleys that are substantially regularly and alternately arranged in both axial and circumferential directions of the commutator.

Abstract: To prevent a substrate for mounting electronic components from being damaged when cores are rubbed together during assembly, a pair of core members sandwich a part of a coil pattern formed on the substrate from the top and bottom sides of the substrate, and the core members are held together by a core-combining member. A cover member is fixed to the substrate to cover the upper side of the core-combining member. Inclined ribs on the cover member raise the core-combining member by abutting against external inclined fates of leg portions of the core-combining member. A clearance thereby is formed between internal faces of a top bar portion of each core member and a surface of the substrate.

Abstract: A core-coupling unit includes a top cover and a bottom cover each having a U-shape. The core-coupling unit clamps a pair of core members in a coupled state with the top cover and the bottom cover being coupled with each other. The top cover is provided with apertures formed in respective legs of the top cover, and the bottom cover is provided with projections formed on respective legs of the bottom cover, the projections mating with the apertures so as to prevent removal. Play-gaps are provided between each projection and respective front and rear edges of the aperture. Lips are provided on the covers for maintaining the positions of the core members in the backward and forward directions. The top and bottom covers are moved backward and forward relative to each other while the core members are clamped, whereby the core members are moved together with the respective top and bottom covers, thereby performing core-rubbing.

Abstract: A plurality of converter circuits is connected in parallel while reducing conduction loss. A converter circuit is formed on each of a plurality of circuit boards, and a plurality of types of terminal connection patterns containing power input terminal connection patterns and power output terminal connection patterns are formed on the end portions of each of the circuit boards with the disposition positions substantially matching each other. The terminal connection patterns at the same position of each circuit board are sandwiched by each of clips of a common terminal member, each of the circuit boards is laminated and fixed, and the converter circuits of each of the circuit boards are connected in parallel. The conduction path for electrically connecting the converter circuit of each circuit board becomes short, making it possible to reduce conduction loss.

Abstract: A juvenile safety car seat has a seat portion and a backrest portion forming a support and defining a support space for supporting a child. A pair of side guards are outwardly movably provided on left and right sides of the backrest portion for protecting the head and the shoulder regions of the child. The lower portions of the side guards, which protect the child's shoulders, have a greater range of outward lateral movement than the upper portions of the side guards, which protect the child's head. A vertical position adjusting mechanism for adjusting the vertical position of the backrest portion is provided between the seat portion and the backrest portion. The car seat can be selectively adjusted to suit the growth state of the child.

Abstract: A plurality of module substrates have circuit boards, respectively. The circuit boards are stacked with a space therebetween, and are connected to first end portions of connecting members. The second end portions of the connecting members are connected to connecting pads disposed on a motherboard. The module substrates are thus stacked and mounted on the motherboard so as to increase the mounting density. By causing the connecting members for the upper circuit board to project further than the connecting members for the lower circuit board, the connecting members for the upper and lower circuit boards are prevented from touching each other.

Abstract: A core-coupling unit includes a top cover and a bottom cover each having a U-shape. The core-coupling unit clamps a pair of core members in a coupled state with the top cover and the bottom cover being coupled with each other. The top cover is provided with apertures formed in respective legs of the top cover, and the bottom cover is provided with projections formed on respective legs of the bottom cover, the projections mating with the apertures so as to prevent removal. Play-gaps are provided between each projection and respective front and rear edges of the aperture. Lips are provided on the covers for maintaining the positions of the core members in the backward and forward directions. The top and bottom covers are moved backward and forward relative to each other while the core members are clamped, whereby the core members are moved together with the respective top and bottom covers, thereby performing core-rubbing.

Abstract: A dynamo-electric machine includes a commutator secured around a rotatable shaft and a plurality of carbon brushes placed in sliding contact with the commutator. The commutator has a sliding contact surface placed in sliding contact with the carbon brushes. The sliding contact surface of the commutator has a plurality of peaks and valleys that are substantially regularly and alternately arranged in both axial and circumferential directions of the commutator.

Abstract: A plurality of converter circuits is connected in parallel while reducing conduction loss. A converter circuit is formed on each of a plurality of circuit boards, and a plurality of types of terminal connection patterns containing power input terminal connection patterns and power output terminal connection patterns are formed on the end portions of each of the circuit boards with the disposition positions substantially matching each other. The terminal connection patterns at the same position of each circuit board are sandwiched by each of clips of a common terminal member, each of the circuit boards is laminated and fixed, and the converter circuits of each of the circuit boards are connected in parallel. The conduction path for electrically connecting the converter circuit of each circuit board becomes short, making it possible to reduce conduction loss.

Abstract: In order to prevent a substrate for mounting electronic components from being damaged when cores are rubbed together during assembly, a pair of core members are respectively arranged so as to sandwich a part of a coil pattern formed on the substrate from the top and bottom sides of the substrate, and the core members are held together by a core-combining member. A cover member is arranged and fixed to the substrate so as to cover the upper side of the core-combining member. Inclined ribs on the cover member raise the core-combining member by abutting against external inclined faces of leg portions of the core-combining member so as to apply a raising force. A clearance thereby is formed between internal faces of a top bar portion of each core member and a surface of the substrate. When sliding the core member, the surface of the substrate is not contacted by the core member so as not to be damaged.

Abstract: A vehicular child safety seat comprises a waist belt engaging portion for deciding the vertical position of a waist belt provided on a movable member displaceable with respect to a base portion and locking means for restricting displacement of the movable member with respect to the base portion. The movable member is rendered rotatable about an axis X—X. A user can adjust the vertical position of the waist belt by rotating the movable member. The user can further fix the vertical position by changing the direction of a switch portion.