Abstract: Each of the contacts comprises a plurality of stacked contact pieces. The contact portions of each of the stacked contact pieces are allocated in the direction of the length of the contact within a size of the corresponding pad. This arrangement can minimize a temperature rise in the contact.

Abstract: An IC socket includes a socket board having a plurality of contacts, and an IC platform vertically movably disposed on the socket board and adapted to support thereon an IC having a plurality of leads projecting sidewards from a body thereof so as to be contacted with the contacts. Inclined wall surfaces are formed at both ends of a row of the contacts and are adapted to guide the leads onto vertical wall surfaces formed at lower ends of the inclined wall surfaces. To this end, the contacts at the ends of the row are guided onto the vertical wall surfaces by the inclined wall surfaces when the IC platform with the IC body supported thereon is lowered, so that the leads are brought into contact with the contacts.

Abstract: A latch arm for engaging with a corner portion of an IC is pivotably supported on a corner portion of a base member of an IC carrier or IC socket. A spring element extends from a rear end of the latch arm, and is bent to accumulate resilient force when the latch arm is pivoted upwardly to remove engagement. Thus, the latch arm is pivoted in the engaging direction by the accumulated resilient force, in order to maintain engagement with the IC.

Abstract: A presser cover 2 is open- and closably connected to a socket body 1 through a pivotal hinge. A metal frame 13 is embedded in a synthetic resin frame 12 forming a heat discharging opening portion 10 in the presser cover 2. This metal frame 13 can be used as a bearing portion of the pivotal hinge, etc. and also as a static electricity discharging means.

Abstract: A connector has a first connector member and a second connector member. The first connector has a pair of left and right shutter members at its left and right side ends. Each of the left and right shutter members has an eject portion which presses the second connector to separate the first and second connectors in accordance with a pivotal movement of the shutter member. The eject portion has a pair of connector press portions which are exposedly projected along front and rear outer surfaces of the first connector. The connector press portion is able to press front and rear outer edge portions of a surface of the connector opposite the first connector.

Abstract: A connector for a leadless IC package having contacts to be pressure contacted with conductive pads arranged on a lower surface of a leadless IC, wherein each of the contacts is formed of a spring element, the connector including a contact holding portion in which the spring element is implanted, a contact braking portion disposed above the contact holding portion, and a contact operating portion laterally movably disposed between the contact braking portion and the contact holding portion, the spring element extending through a contact operating through-hole formed in the operating portion, a distal end of the spring element being received in a contact braking through-hole formed in the braking portion, the spring element being sidewardly pressurized by an inner wall of the contact operating through-hole when the operating portion is moved in one direction, so that the spring element is bent and displaced, the spring element being restored to its original state when the operating portion is laterally moved i

Abstract: A connector for an electric part having a contact shutter device for forming an open state or a closed state of a contact, comprising a finger-like latch member able to be engaged with and disengaged from an electric part, the finger-like latch member being operatively connected to an action of the contact shutter device for displacing a contact in an open state in order to be disengaged from the electric part, the finger-like latch member being operatively connected to an action of the contact shutter device for displacing the contact in a closed state in order to be engaged with the electric part.

Abstract: A socket for receiving an electric part has a presser cover openably and closably connected to a socket body through a pivotal hinge. Metal frames are embedded in a synthetic resin frame defining an opening in the presser cover at the position of the electric part. The metal frames can be used as bearing portions of the pivotal hinge. Holes in the presser frame through which the metal frames are exposed permit the metal frames to act as a static electricity discharging device.

Abstract: In a connector having a group of contacts arrayed at narrow pitches on a base member, a contact fixture device is formed separately from the base member forming a connector body. The contact fixture device is provided with retaining claws adapted to secure the fixture device to the base member. The contact fixture device is further provided with a presser portion disposed across a group of seat elements of the group of contacts. The presser portion is laid across the group of seat elements to urge the group of seat elements against a surface of the base member when the fixture device is secured to the base member with the retaining claws. In this manner, the group of contacts can be arrayed on the base member.

Abstract: A contact of an electric part socket has a first spring portion, a second spring portion spaced apart from the first spring portion but connected to it at both basal and distal ends thereof, a terminal portion leading to the connecting portion between the basal ends and adapted to be brought into contact with a wiring board or the like, and a contact portion formed on the connecting portion between the distal ends and adapted to be brought into contact with a terminal of an electric part to be engaged on it. The first and second spring portions are flexed about the connecting portion between the basal ends in order to displace the contact portion downward. The contact portion is pressure contacted with the terminal of the electric part mounted on it by reaction of the first and second spring portions.

Abstract: A socket for an electric part has a socket body, and the socket body has a push-up spring for exerting an upward force to an electric part. A group of push-down contacts operated to be placed in pressure contact with a group of terminals of the electric part exert downward forces on the terminal. The downward forces of the push-down contacts are set to be larger than the upward force of the push-up spring. The push-down contacts, when placed in pressure contact with the terminals of the electric part, push down the terminals of the electric part while biasing the push-up spring and slidedly moving along the surfaces of the terminals of the electric part.

Abstract: To remove a contact condition between a contact and a lead of an IC package, a movable plate is moved forwardly from a control position to a release position by pivoting a crank lever, which includes a crank shaft portion having an eccentric shaft portion, from a starting point to a terminal point. The starting point of the forward pivotal movement of the eccentric shaft portion of the crank shaft portion is set in a third or fourth quadrant of a rectangular coordinate system with its origin at the rotation axis of the crank shaft portion (i.e. the starting point of the central axis of the eccentric shaft portion is disposed below the rotation axis of the crank shaft portion).

Abstract: Partition walls disposed between adjacent contacts are formed as parts separate from a socket board. One or both ends of the partition walls are slip fitted into a socket board or an operating member so as to be held by the socket board. The partition walls and elastic contact elements of the contacts are coincidently displaced.

Abstract: A latch connector has a first connector and a second connector. The first connector has a pair of latches disposed on opposing lateral ends thereof, each of which is pivotably supported by a shaft. Each latch has an upper claw and a lower claw. The second connector has hook portions disposed on opposing lateral ends thereof which are brought into engagement with the lower claws to cause the first and second connectors to be connected with each other when the latches are pivoted in the opening direction, and pressure receiving portions which the upper claws are urged against to exert a force for separating the first and second connectors when the latches are pivoted in the closing direction, when the lower claw and the hook portion are disengaged from each other. When the first connector is pushed into the second connector, the latch is pivoted in the opening direction by the upper claw being urged against by the pressure receiving portion to achieve an engagement between the lower claw and the hook portion.

Abstract: A three-way nip contact type contactor has first, second and third contacting pieces connected together at their base end portions and arranged side by side in rows extending toward their top end portions. The first and second contacting pieces are arranged to form two sides of a triangle and the third contacting piece is arranged to form the remaining side. A male terminal is nipped by and among the first through third contacting pieces to obtain a contacting relation between the male terminal and each of the first through third contacting pieces. The third contacting piece is provided at its top end portion with a pressure bearing portion. The third contacting piece, when an external force is applied to the pressure bearing portion, is displaced in an opening direction against its elasticity to permit the male terminal to be inserted into and among the first through third contacting pieces.

Abstract: A pivot shaft member 8 is disposed at a central portion of an IC platform 2, and a pivotal operation portion disposed at a head portion of the shaft member 8 is exposed on an upper surface side of the IC platform 2. The shaft member 8 and the IC platform 2 or a socket board 1 are connected with each other by cam means. The IC platform 2 is guided between a higher position and a lower position by a pivotal operation of the pivot shaft member 8 in order to adjust an IC supporting height.

Abstract: A mount-to-contact type contact has a stationary terminal 1, a swinging contact element 3 swingably supported by the stationary terminal 1, and a spring 10 adapted to resiliently hold one swinging end 7 of the swinging contact element 3, the other swinging end 8 serving as a contact end on which a terminal 9 of an electric part 6 is to be mounted to achieve a contact relation.

Abstract: A socket is disclosed in which a contacting portion of a contact can be displaced outwardly in order to facilitate an easy insertion or removal of an electric part such as an IC. A contacting portion of a contact is displaced inwardly in order to obtain an electrical contact between a contacting point of the electric part and the contacting portion. The contact includes a hook-shaped latch portion extending in a direction opposite the contacting portion and extending downwardly. An acting portion of a pivotal lever is brought into contact engagement with an inner surface of the hook-shaped latch portion, and the acting portion exerts an outward tensile force against the latch portion of the pivotal lever while being pivoted in the inner surface of the hook portion. This causes outward displacement of the contacting portion such that the contacting portion is removed from the contacting point of the electric part.

Abstract: A inner jacket member 1 having slit elements 1a is inserted into an outer jacket member 2. An inner jacket member pressing portion, 4, 13 for closing or dilating the inner jacket member 1 is formed within said outer jacket member 2 in such a manner as to be opposite the front end portions 1b of the split elements 1 a. A male terminal 7, 8 to be contacted with an electric part, such as the leadless IC or the like, under pressure is disposed at a tail end of either of the outer and inner jacket members 2 and 1.

Abstract: A socket for an electric part including a socket body formed of an insulator material and having a plurality of contacts which are arranged in such a manner as to be able to contact with terminals of an electric part, and a movable plate disposed on the socket body in such a manner as to be able to laterally move along an upper surface thereof, a lateral movement of the movable plate in one direction forming a contacting state between each contact and each terminal of the electric part and a lateral movement thereof in the other direction forming a releasing state of the contacting state. A conductive shoe is interposed between the socket body and the movable plate and generating slippage when the movable plate is laterally moved.