Abstract: An IC carrier has a base and a cover pivotably attached to the base through a shaft coupling. One end of the cover is provided with a plurality of shafts forming the shaft coupling and arranged at spaced intervals. The base is provided with a short recess portion shorter than the length of the shaft and a recess portion equal to or longer than the length of the shafts. The short and long recess portions are spaced on one end of the base at an equal interval to the spacing of the shafts. One end of the recess portions is provided with a shaft receiving portion for receiving ends of the corresponding shaft. The cover can be bent in the thickness direction and the shafts can be inclined in accordance with the bending of the cover.

Abstract: An IC socket comprises a socket board having an IC mount table. Contacting portions of tips of a plurality of contacts arranged in parallel relation on the socket board are inserted into a plurality of positioning holes which are arranged in parallel relation on a marginal portion of the IC mount table in order to contact with corresponding contacting pieces of an IC which is placed on the IC mount table. Dividing ridges are formed by lower ends of the partition walls on the entrance side thereof for the contacts, the dividing ridges being formed between the adjacent positioning holes arranged in parallel relation.

Abstract: An IC socket including a socket board having a plurality of contacts on which an IC is to be placed, an IC pressing cover open- and closeably pivotally connected to the socket board, and an IC loading table with the IC loaded thereon, the table being disposed on the socket board and adapted to facilitate a proper contact between the IC and the contacts, the IC socket further including a positioning projection of a generally V-shape formed on the side of the IC pressing cover and a positioning valley of a generally V-shape formed on the side of the IC loading table, the projection and valley being disposed in such a manner as to be corresponded to each other, the generally V-shaped positioning projection being held into the generally V-shaped valley when the IC pressing cover is closed, so that a relative position of the IC pressing cover can be maintained with respect to the IC loading table and IC.

Abstract: An IC socket is provided with an inset bottom formed in a socket board at a region from where a group of male terminals project The IC socket has terminal partition walls arranged in a lattice shape and adapted to partition the interior of the inset bottom. A group of grooves are formed between the adjacent terminal partition walls, and the group of male terminals projects from bottom walls of the grooves.

Abstract: A connector for an electric part has a plurality of contacts for connecting with an electric part. Leg portions of the contacts are arranged in such a manner as to project from a connector board. The connector also has a locator provided with a plurality of positioning holes formed in a surface of the connector board from which the leg portions of the contacts project. The positioning holes are adapted to permit the leg portions to extend individually through the connector board. The locator can be moved between a first position close to the connector board and a second position spaced apart from the connector board. The connector further includes temporary fixing means for temporarily fixing the locator in the second position spaced apart from the connector board.

Abstract: A contact shutter mechanism in an IC socket has a socket body which has a plurality of contacts arranged in such a manner as to be able to contact with terminals of an IC package. A contact shutter member vertically movably disposed on the socket body is adapted to displace, when pushed down, the contacts backward against the resiliency thereof to remove contact between the terminals of the IC package and the contacts and to bring an IC loading portion into a released state. The shutter member has a contact pushing portion adapted to rendering a backward displacement force to the contacts. The contact pushing portion is formed with an inclined surface. The inclined surface is formed at a front-stage pushing portion with a gently inclined surface and at a rear-stage pushing portion with a steeply inclined surface.

Abstract: An IC socket has an IC accommodating portion, at least one ejection lever disposed in the IC accommodating portion, and a socket board for supporting a generally central portion of the lever in such a manner as to be able to effect a seesaw motion. An IC is supported by a push-up lever portion on one end of the lever for effecting the seesaw motion. A push-down force is exerted on the push-down lever portion on the other end for effecting a seesaw motion of the lever, thereby to move up the push-up lever portion on the one end in order to push up the IC. The IC socket is characterized in that the push-up lever portion is provided with a small projection on a lower surface of the push-up lever portion and a cone-shaped concave portion is formed at a position corresponding to the small production in the socket board so that the lever is correctly positioned with respect to the socket board.

Abstract: A contact for insertion into a socket of an electric part and for receiving a terminal.

Abstract: A contact structure has an IC carrier for holding an IC package which is placed on a socket and contact pieces of the IC package held by the IC carrier which is to be contacted with contacts of the socket. The contact structure in the socket with the IC carrier placed on the socket is characterized in that it further includes contact pieces for allowing the contacts to be contacted with IC contact pieces from above under pressure and the IC carrier is held between the socket and the IC package by pressure contact force which is to be exerted against the IC contact pieces by the contact pieces of the contacts.

Abstract: An IC socket has a socket substrate, an IC press cover pivotally attached to one end of the socket substrate through a shaft, and a lock member pivotally attached to the other end of the socket substrate through a shaft and adapted to engage with and disengage from a free end of the IC press cover. The improvement is characterized in that one end of the socket substrate is formed with a lock member pivot hole for inserting therein the shaft for the lock member adjacent to a press cover pivot hole for inserting therein the shaft for the IC press cover, and the other end of the socket substrate is formed with a press cover pivot hole for inserting therein the shaft for the IC press cover adjacent to a lock member pivot hole for inserting therein the shaft for the lock member. The two pivot holes formed in the above-mentioned one end of the socket substrate are arranged symmetrically with the two pivot holes formed in the other end of the socket substrate.

Abstract: A connector for an electric part includes a connector body for the connection with the electric part, and a moving plate movably mounted on the connector body and able to move in the horizontal direction along the upper surface of the connector body, the connector body, when moved in one direction, being brought into contact with the electric part and brought out of contact when moved in the other direction. The connector comprises fist and second operating levers operated to move the moving plate in the horizontal direction, one end of the first operating lever being pivotably supported on a side surface of one end of the connector body through a supporting shaft and the second operating lever being likewise pivotably supported on a side surface of the other end of the connector body through a supporting shaft.

Abstract: In an IC carrier for carrying thereon an IC package so as to facilitate transferring of the IC package, a contact insertion space is formed between an IC contact piece and a supporting seat of a frame which supports IC contact pieces which project sideways from the IC package. The insertion space opens in such a manner as to allow insertion of the contact of an IC socket. In this manner, a contact inserted into the contact insertion space presses downwardly against the IC contact piece so as to cause contact between the IC contact piece and the contact.

Abstract: An impact test hammer includes a cylindrical handle having opposite first and second end portions and a hollow interior, a sensor portion fixed to the first end portion of the handle, and a grip portion fixed to the second end portion of the handle. An elastic striking portion is fixed to an outer periphery of the sensor storage portion, and an impact acceleration sensor is housed within the sensor storage portion for sensing a striking power of the elastic striking portion applied to a test object. A circuit is housed within the grip portion and operatively connected to the sensor by way of wiring extending through the hollow interior of the handle. Such a circuit includes a range switch, a scale conversion amplifier and a wind amplifier. A knob is provided on the outer periphery of the grip portion for operating the range switch to set a degree of amplification of the amplifier.

Abstract: An IC carrier has a continuous annular frame formed in a generally square shape, an IC accommodating portion formed with the frame and adapted to accommodate an IC package therein, a supporting portion formed on the frame and adapted to support contact pieces of the IC package, and engaging claws integrally formed on the frame and adapted to hold the IC package. The IC carrier further has a hinge portion formed in corner portions at the ends of a diagonal hinge line extending diametrically of the frame to permit the frame to bend around the hinge line.

Abstract: A contact equipped with a bypass element has a contact portion element at one end of a warped element and a male terminal at the other end thereof. The contact comprises a bypass element disposed within the warped element. One end of the bypass element is formed of a rigid portion element and the other end thereof is formed of an elastic portion element. An area at a connecting portion between the rigid portion element and the elastic portion element and a free end of the rigid portion element are contacted with the inner surface between one end and the other end of the warped element to short the circuit between the contact portion element and the male terminal. A free end of the elastic portion element is abutted against an inner surface on the warped side of the warped element in order to elastically support the rigid portion element.

Abstract: In a connector for providing electrical contact by holding a terminal of an electric part, a socket for an electric part is characterized in that a holding portion for holding the terminal conforms to a molded portion of a connector body. The holding portion is provided on its outer surface with a conductive deposit. A resilient pressurizing piece is disposed opposite the conductive deposit, and the terminal of the electric part is held between the conductive deposit and the resilient pressurizing piece.

Abstract: A socket for electric parts has a socket body for connecting an electric part, a moving plate mounted on the socket body and able to horizontally move along an upper surface of the socket body. A contacted state or a noncontacted state between a contact of the socket body and a terminal of the electric part is formed by the horizontal movement of the moving plate in one direction and a noncontacted state between the contact of the socket body and the terminal of the electric part is formed by a horizontal movement of the moving plate in the other direction. The socket for electric parts further has an operating lever for horizontally moving the moving plate in order to form a contacting or a noncontacting state.

Abstract: A socket for an electric part comprises a socket body for connecting an electric part, a movable plate having a plurality of terminal insertion holes formed therein and being adapted to move along an upper surface of the socket body, a plurality of contacts in the socket body, and a no-load insertion space formed alongside each contact and adapted to facilitate a no-load insertion of a terminal of the electric part. The terminal of the electric part can be inserted into the no-load insertion space through the terminal insertion hole formed in the movable plate. The terminal can then be brought to a position in which it contacts the contact from the no-load insertion space by causing the movable plate to move laterally in one direction. Likewise, the terminal can be moved into the no-load insertion space from the contacting position by causing lateral movement of the movable plate in the other direction, in order to realize a no-load insertion and withdrawal of the electric part.

Abstract: An IC socket includes a socket body having a plurality of contacts arranged in such a manner as to contact terminal members of an IC package. A contact shutter member is vertically movably mounted on the socket body and adapted, when lowering, to push the contacts against their elastic property so that the contacts will be displaced backward and downward to remove the contact relation.

Abstract: A moving mechanism of a moving plate for forming a contacting state and contact-releasing state in the socket for an electric part is characterized in including a contacting operation lever adapted to perform a horizontal movement operation of the moving plate in one direction, and a contact-releasing operation lever adapted to perform a horizontal movement operation of the moving plate in the other direction, one end of the contacting operation lever being pivotably axially supported on a side surface on one end side of the socket body, the one end of the operation lever being pivotally connected to the side surface of one end side of the moving plate by a transmission shaft, the transmission shaft being disposed such that when the contacting operation lever is pivoted about the supporting shaft, the transmission shaft renders a horizontal movement force to the moving plate so that the moving plate is moved in one direction, furthermore, one end of the contact-releasing operation lever being pivotally axiall