Abstract: A rotating electric machine according to an embodiment of the present invention includes a rotor; a stator; an insulator; and a coil. The rotor rotates about a first axis. The stator includes teeth projecting toward the rotor. The insulator is attached to each of the teeth. The coil is wound around the insulator. The insulator includes a pair of side surface portions that are mounted on the teeth to generate a biasing force against the teeth in a twisting direction with respect to a direction of the first axis.

Abstract: A vane pump includes: pump chambers formed by a rotor, a cam ring, and vanes; a first suction port that guides working fluid guided by a suction passage to the pump chambers; a second suction port that guides the working fluid guided from the suction passage through a communication passage to the pump chambers; and a return passage to which excessive fluid of the working fluid discharged from the pump chambers is guided. The return passage has: a body-internal passage through which the excessive fluid flows along an axis direction at an outer side of the cam ring in a radial direction; and a turning passage that reverses the excessive fluid guided through the body-internal passage towards the second suction port.

Abstract: A manufacturing method includes a joining step of abutting and joining an end surface of a tube main body and a projecting portion of a head member by frictional welding in a state in which a through hole of the tube main body and the projecting portion of the head member are fitted with a fitting clearance. In the joining step, flow material which is practically flowed from an end surface of the tube main body and the flange portion of the head member is filled in the fitting clearance from the root side until the tip portion is located within the range in the direction of the rotation axis, thereby joining between a non-contact portion and the tube main body and between an inclined inner peripheral surface of the tube main body and an outer peripheral surface of the projecting portion by the flow material.

Abstract: A gear manufacturing method, the gear including an annular gear portion including teeth on an outer periphery, an annular support portion provided on an inner peripheral surface of the gear portion and supporting the gear portion, and a core portion provided inside the support portion, the method includes: a support portion molding step of molding the support portion by disposing the gear portion and the core portion in an annular mold and filling a resin between the gear portion and the core portion; and a support portion cooling step of cooling the support portion molded in the support portion molding step, a radial gap between the teeth of the gear portion and the mold before the support portion molding step is set to be smaller than a radial shrinkage amount of the support portion in the support portion cooling step.

Abstract: A piston pump includes: a first biasing mechanism configured to bias a swash plate in accordance with control pressure supplied; a second biasing mechanism configured to bias the swash plate against the first biasing mechanism; and a regulator configured to control the control pressure in accordance with self-pressure of the piston pump. The regulator has: an outer spring and an inner spring configured to be extended and compressed by following tilting of the swash plate; a control spool configured to be moved in accordance with biasing forces exerted by the outer spring and the inner spring, the control spool being configured to adjust the control pressure; an auxiliary spring configured to exert biasing force to the control spool against the biasing forces exerted by the outer spring and the inner spring; and an adjusting mechanism configured to adjust the biasing force exerted by the auxiliary spring.

Abstract: To provide a lubricant composition for shock absorbers, a friction adjusting additive for a lubricant for shock absorbers, and a lubricant additive, each capable of satisfying both operational stability and ride comfort and improving the ride comfort further. The lubricant composition for shock absorbers contains a base oil and a friction adjusting agent and the friction adjusting agent contains a first zinc dithiophosphate represented by the following formula 1: [in the formula 1, R11 to R14 are alkyl groups in which one or more and three or less is/are a primary alkyl group and the other(s) is/are a secondary alkyl group].

Abstract: To provide a lubricant composition for shock absorbers, a shock absorber, and a method for adjusting the friction of a lubricant composition for shock absorbers, each capable of satisfying both operational stability and ride comfort particularly at the time of a minute amplitude. The lubricant composition for shock absorbers contains a base oil and a friction adjusting agent, wherein the friction adjusting agent contains a pentaerythritol ester, the pentaerythritol ester contains a pentaerythritol tetraester at the highest proportion or in an amount of 50 mass % or more, and the pentaerythritol ester content is 0.5 mass % or more.

Abstract: Press-fitting the bus-bar into the connection terminal while improving reliability. In the rotary electric machine, the connection terminal comprises a terminal fixing portion fixed to the circuit board and held by the terminal holder, and a terminal connection portion arranged on the other side in the first direction with respect to the terminal fixing portion and for press-fitting the bus-bar. The terminal connection portion is arranged separately from the circuit board on the lower side. In the connection terminal, the connecting portion connecting the terminal fixing portion and the terminal connection portion is configured to be bendable and deformable vertically. This allows the terminal connection portion to be displaced when a press-fitting load above predetermined value is input to the terminal connection portion. Thus, since the press-fitting load is used as a load that bends and deforms the connecting portion, the load transmitted to the terminal fixing portion is reducible.

Abstract: A spring guide includes: a base portion configured to support a coil spring; and an opening portion provided so as to penetrate through the base portion, the opening portion being configured such that a shock absorber is inserted into the opening portion, the opening portion is provided with: protruded portions protruding out from an inner circumferential surface of the opening portion, the protruded portions being configured to support the shock absorber; and a recessed portion recessed in the inner circumferential surface of the opening portion, a plurality of the protruded portions are arranged along a circumferential direction of the opening portion, and a gate trace of an injection mold is formed in the recessed portion.

Abstract: A fluid state detection sensor includes: an electrical conductivity calculation unit having an electrical conductivity calculation part configured to calculate an electrical conductivity of a fluid from a voltage value acquired in a first voltage acquisition part; and a relative dielectric constant calculation unit having a relative dielectric constant calculation part configured to calculate a relative dielectric constant of the fluid from a voltage value acquired in a second voltage acquisition part, wherein the first voltage acquisition part acquires an inter-electrode voltage value after a predetermined time period after a switching part above a connection target of a pair of electrodes to the electrical conductivity calculation unit, and the second voltage acquisition part acquires the inter-electrode voltage value after the predetermined time period after the switching part switched the connection target of the pair of electrodes to the relative dielectric constant calculation unit.

Abstract: A liquid state detection sensor includes: an electrode part, the electrode part having a pair of electrodes provided so as to be opposed to each other; a voltage value acquisition time period setting unit configured to set a voltage value acquisition time period, the voltage value acquisition time period being a length of a time period during which an inter-electrode voltage value of the pair of electrodes of the electrode part is acquired; a voltage value acquisition unit configured to acquire the inter-electrode voltage value in the voltage value acquisition time period; and an electrical conductivity calculation unit configured to calculate an electrical conductivity of the liquid on the basis of, among the inter-electrode voltage value acquired by the voltage value acquisition unit, the inter-electrode voltage value acquired after a predetermined time period has elapsed since a start of the voltage value acquisition time period.

Abstract: A shock absorber according to the present invention includes: a cylinder, a rod movably inserted into the cylinder, and a partition member having a disk shape and inserted into the cylinder to partition an inside of the cylinder into two working chambers, in which the partition member includes a plurality of ports that communicates the working chambers with each other, and a choke passage having a portion communicating the working chambers with each other and passing through an inner peripheral side or an outer peripheral side of each port along a circumferential direction.

Abstract: A valve of the present invention includes: a valve seat member that has a port, an annular window which communicates with an outlet end of the port, an inner-circumferential valve seat provided on an inner-circumferential side of the annular window, and an outer-circumferential valve seat of the annular window; a first valve body that are stacked on a valve seat member, that can seat on or come off the outer-circumferential valve seat to open or close the annular window, and that has a hole; a second valve body that is contained in the annular window so as to be movable in an axial direction and that closes the hole when abutting on a valve seat member side surface of the first valve body; a second valve body biasing member that is contained in the annular window and that biases the second valve body toward the first valve body; a regulating portion that restricts a movement of the second valve body in a direction in which the second valve body moves away from the first valve body; and a communication passage

Abstract: Provided is a shock absorber capable of improving the dimensional quality and ensuring the sealing performance of a seal ring. The shock absorber includes a cylinder, an outer tube, an intermediate tube, and a discharge passage defined between the intermediate tube and the cylinder, a reservoir defined between the intermediate tube and the outer tube. The intermediate tube includes, on its inner circumferential surface, a groove having a concave shape in cross section to be capable of accommodating a seal ring that closes the discharge passage. A relationship of ?1<?2 is satisfied, where ?1 represents an angle formed between one side surface, out of both side surfaces of the groove of the intermediate tube, that is located on an axial end side of the intermediate tube, and a plane orthogonal to an axial direction of the intermediate tube, and ?2 represents an angle formed between the other side surface that is located on an axial center side of the intermediate tube and the plane.

Abstract: A front fork (1) according to the present invention includes: a fork main body (2) including a vehicle body side tube (3) and an axle side tube (4); a cap body (5) attached to a vehicle body side tube (3); a cylinder (6) provided in the axle side tube (4); a cylindrical rod (7) axially movably inserted into the cylinder (6); an electric device (8) housed in the cylinder (6); and a wire (9) that is inserted into the rod (7), passes through the cap (C), and is drawn out from the fork main body (2) and is connected to the electric device (8), in which the connection tube (13b) and the rod (7) in the cap (C) are connected by a connection nut (27) that is rotatably mounted on an outer circumference of one of the connection tube (13b) and the rod (7) and is restricted in movement in the axial direction toward the other, and screwed to the other.

Abstract: A manufacturing method of a resin molded member includes: an insert member molding step of building an insert member by stacking layers of a base resin containing continuous fibers by using a 3D printer; an aligning step of aligning the insert member in a cavity of an injection molding mold; and a resin portion molding step of molding a resin portion integrated with the insert member by filling an injection molding resin into the cavity, wherein the insert member is arranged on a surface of a weld portion by the resin portion molding step, and the continuous fibers in the insert member are oriented in direction crossing over the weld portion, the weld portion being formed in the resin portion.

Abstract: A clearance is created between an inner circumference of a bushing main body (2) which surrounds a rack (5) across a row of rack gear teeth (50) and an outer circumference of the rack (5), and two supporting surfaces (21A, 21B) which face each other with a bushing main body axis O therebetween and a supporting surface (21C) which faces a back surface of the rack (5), each extending along an x-axis direction, are formed on the inner circumference of the bushing main body (2). The rack (5) in a neutral state is supported by the two supporting surfaces (21A, 21B) so as to be displaceable along a z-axis direction, and the rack (5) in operation is stably supported by the three supporting surfaces (21A-21C) at three places.

Abstract: A pump displacement control device includes: a servo piston that changes a tilt angle; a flow rate control spool that is displaced corresponding to an input pressure; a power control spool that is displaced corresponding to a discharge pressure of the pump; a control pressure regulating spool that regulates a control pressure which controls the servo piston; and a feedback lever connected to the servo piston and the control pressure regulating spool. The feedback lever directly abut on either one of the flow rate control spool or the power control spool for regulating the control pressure.

Abstract: A shock absorber includes a hard side damping element that imparts a resistance to a flow of liquid moving between an extension side chamber and a compression side chamber, a solenoid valve configured to change an aperture area of a bypass passage that bypasses the hard side damping element and communicates with the extension side chamber and the compression side chamber, a soft side damping element provided in series with the solenoid valve in the bypass passage, and a tank connected to the compression side chamber. The hard side damping element includes an orifice and leaf valves provided in parallel with the orifice. The soft side damping element includes an orifice having a larger aperture area than the orifice.

Abstract: A front fork (1) of the present invention includes: a fork main body (2) having a vehicle body side tube (3) and an axle side tube (4); a cap (5) placed in the vehicle body side tube (3); a cylinder (6) provided inside the axle side tube (4); a rod (7) inserted into the cylinder (6) so as to be movable in an axial direction; an electric device (6) mounted inside the cylinder (6); an electric wire (9) connected to the electric device (8); a suspension spring (10) biasing the fork main body (2) in an extending direction, and an adjuster (11) capable of adjusting a support position of a spring seat (12). The electric wire (9) is drawn from the cap (5) at a position misaligned from an axial center line of the fork main body (2) to an outside of the fork main body (2). An operational portion (17) of the adjuster (11) is provided in the cap (5) at a position misaligned from the axial center line (A).