Abstract: A male terminal disclosed in this specification is a male terminal 10 fittable to a female terminal 20 including at least a pair of resilient contact pieces, and includes a terminal contact portion 11 having a pin shape and configured to contact the resilient contact pieces 21 of the female terminal 20 when the male terminal 10 is fit to the female terminal 20, and projections 12 projecting from an outer peripheral surface of the terminal contact portion 11 and arranged to be fit between side edges 24 of pairs of adjacent ones of the resilient contact pieces 21 of the female terminal 20 when the male terminal 10 is fit to the female terminal 20.

Abstract: A male terminal disclosed in this specification is a male terminal 10 fittable to a female terminal 20 including at least a pair of resilient contact pieces, and includes a terminal contact portion 11 having a pin shape and configured to contact the resilient contact pieces 21 of the female terminal 20 when the male terminal 10 is fit to the female terminal 20, and projections 12 projecting from an outer peripheral surface of the terminal contact portion 11 and arranged to be fit between side edges 24 of pairs of adjacent ones of the resilient contact pieces 21 of the female terminal 20 when the male terminal 10 is fit to the female terminal 20.

Abstract: A method for manufacturing a female terminal (1) with a tubular portion (11) formed by bending a metal plate into a tubular shape and resilient contact pieces (12) extending from the tubular portion (11) in an axial direction of the tubular portion (11), folded inwardly of the tubular portion (11) and configured to resiliently contact a mating terminal inside the tubular portion (11) includes a joining step of joining metal members thinner than the metal plate to the metal plate, and a forming step of bending the metal members joined to the metal plate and forming the metal members as the resilient contact pieces.

Abstract: A device connector (10) is mounted into a mounting hole (C1) on a case (C) of a device in a vehicle, and includes terminals (50) connected to wires (W). A synthetic resin housing (30) includes a wire introducing portion (32) and a fitting portion (31). The wire introducing portion (32) receives the wires (W) and the terminals (50) while the fitting portion (31) fits into the mounting hole (C1). A metal shield shell (60) accommodates the wire introducing portion (32) and includes a lower shell (62) for covering the entire outer circumferential surface of the wire introducing portion (32). A seal ring (72) fits on an outer surface of the wire introducing portion (32) and seals between the lower shell (62) and the wire introducing portion (32). Water drainage holes (77) vertically penetrate a stepped portion (69) of the lower shell (62) above the seal ring (72).

Abstract: A device connector (10) is mounted into a mounting hole (C1) on a case (C) of a device in a vehicle, and includes terminals (50) connected to wires (W). A synthetic resin housing (30) includes a wire introducing portion (32) and a fitting portion (31). The wire introducing portion (32) receives the wires (W) and the terminals (50) while the fitting portion (31) fits into the mounting hole (C1). A metal shield shell (60) accommodates the wire introducing portion (32) and includes a lower shell (62) for covering the entire outer circumferential surface of the wire introducing portion (32). A seal ring (72) fits on an outer surface of the wire introducing portion (32) and seals between the lower shell (62) and the wire introducing portion (32). Water drainage holes (77) vertically penetrate a stepped portion (69) of the lower shell (62) above the seal ring (72).

Abstract: Provided are a surface modification apparatus for an alloy steel component, a surface modification method for an alloy steel component, and a method for manufacturing an alloy steel component, which can provide a deep and homogeneous hard layer for a steel component with a wide shape or a large amount of such steel components. A surface modification apparatus 100 includes a process furnace 101, and the process furnace 101 performs a surface modification process on an alloy steel component 90 including an alloy steel material to which at least one kind of nitride formation element such as chromium, molybdenum, or aluminum is added. The surface modification apparatus 100 forms a compound layer on a surface of the alloy steel component 90 by exposing the alloy steel component 90 for at least 180 minutes to an atmosphere in the process furnace 101 maintained to have an ammonia gas concentration of 80% or more and a temperature of 620° C.