Abstract: A signal transmission medium inserted into an insulating housing can be held and released in a favorable manner with a simple structure. A pair of lock release parts are arranged to face opposite each other at both outer ends of a signal transmission medium, this pair of lock release parts being integrally and continuously formed to release arms integrally extending from the insulating housing to be movable to approach and separate from each other, with a lock release link mechanism being provided for causing the locking portion to displace in an unlocking direction by moving the pair of lock release parts in directions approaching each other.

Abstract: A cam portion is provided at a turning shaft portion of a fit-turning arm which holds a fitted state of a connector with a mating connector, a cam-biasing device is provided on a connector main body, and the fit-turning arm is made hard to depart from a “fit-acting position” by applying a turning biasing force to the cam portion in a direction of holding the fit-turning arm which has been turned to the “fit-acting position” at the “fit-acting position”.

Abstract: An electrical connector including a housing to be mounted on an outer surface of a main circuit board, conductive contacts arranged in the housing and an actuator operative to take selectively a first station for releasing each of the conductive contacts from press-contact with one of connecting terminals on a flat circuit device inserted in the housing and a second station for causing each of the conductive contacts to maintain the press-contact with the connecting terminal, wherein the actuator has a particular outer portion thereof which faces upward on the outer surface of the main circuit board when the actuator takes one of the first and second stations and faces toward a direction in parallel with the outer surface of the main circuit board when the actuator takes the other of the first and second stations.

Abstract: A terminal connected to a printed circuit board by sandwiching the printed circuit board therebetween includes a first contact part making contact with an upper surface of the printed circuit board, and a second contact part making contact with a lower surface of the printed circuit board, the second contact part being in facing relation with the first contact part, the first contact part including a resilient contact piece making contact with the upper surface, and a support part for supporting the contact piece, the contact piece having a width smaller than a width of the support part, the second contact part having a width smaller than a width of the support part, the contact piece having a length greater than a length of the second contact part, the lengths being measured in a direction perpendicular to a plane defined by the printed circuit board.

Abstract: The electric connector includes a male connector and a female connector, the male connector including a cylindrical main portion, and a male contact terminal formed at the main portion, the female connector including a hole into which the main portion is fit, and a female contact terminal formed at the hole for making electrical contact with the male contact terminal when the main portion is fit into the hole, one of the male connector and the female connector including a guide shaft axially extending in a direction in which the male connector is fit into the female connector, the other of the male connector and the female connector including a guide hole for allowing the guide shaft to be inserted thereinto to guide the guide shaft in the direction.

Abstract: A connector terminal includes a first contact at one end, a second contact at the other end, and a buffer portion, the connector terminal electrically connecting a first object connected to the first contact to a second object connected to the second object, the buffer portion being bent in accordance with a positional gap between the first and second objects, the buffer portion having a cross-sectional area smaller than the same of the first and second contacts.

Abstract: To allow a quick and reliable check with a simple structure as to whether a signal transmission medium has been inserted up to a predetermined position or whether a lock operation has been completed, an insulating housing is provided with lock checking device allowing a displaced state or an engaged state of a lock member to be visually checked. With this, the displaced state of the lock member or a state in which the signal transmission medium has fallen in an engagement positioning part when the signal transmission medium is inserted up to the predetermined position can be visually checked through the lock checking device, thereby allowing the quality of an insertion state of the signal transmission medium to be immediately determined.

Abstract: Instability of an electric connection state due to solder-wicking from a board connecting part of an electrically-conductive shell can be prevented with a simple configuration. A recessed part recessed toward a fixed contact and a movable contact is provided in the board connecting part of the electrically-conductive shell attached to an insulating housing. An excessive amount of a solder material or flux that is used at the board connecting part of the electrically-conductive shell and tries to rise along the wall surfaces of the board connecting part or the electrically-conductive shell is stored in the recessed part. The acting force of the rise is reduced by a reverse-tapered inclined surface constituting a wall surface of the recessed part. Furthermore, the length of the rise of the solder material and flux is extended by a curved wall surface of the recessed part. Thus, so-called solder-wicking is configured to be prevented well.

Abstract: A connector terminal includes first and second spring terminals between which a male connector terminal of a male electric connector is sandwiched, the connector terminal being formed by bending a strip-shaped plate about lines intersecting with a longitudinal line of the plate such that a width of the plate is maintained as it is, the first and second spring terminals being formed with a limiter for preventing the first and second spring terminals from being outwardly deflected.

Abstract: The operability and usage durability of a lock cancellation operating part 12e can be improved with a simple configuration. A latch lock part 12a and a lock cancellation operating part 12e are integrally provided to an elastically-displaceable lock arm member 12g, which is integrally extending like a cantilever from a board connecting part 12c solder-joined with a main wiring board. The board connecting part 12c, the latch lock part 12a, and the lock cancellation operating part 12e are integrally provided with the lock arm member 12g so that a retaining action and a cancelling action of the inserted signal transmission medium F is carried out by operation of a single member.

Abstract: The electric connector includes at least one connector terminal into which a male connector terminal of a male electric connector is inserted, and a housing including a terminal storage room in which the connector terminal is housed, the housing including a support supporting the connector terminal at at least one of an outer surface and a bottom of the connector terminal when the male connector terminal is inserted into the terminal storage room for preventing the connector terminal from inclining.