Abstract: A lamp socket (20) of the invention mainly includes an upper socket (21), a lower socket (22), and terminal members (23). The upper socket 21 has a bulb mounting portion (25) formed on an upper side of an socket body (24), and a wire connection portion (26) is formed on a side surface of the socket body (24). This wire connection portion (26) has two wire insertion grooves (30, 30) formed by opposite side walls (27, 27), projecting from the socket body (24), and a partition wall (28). The lower socket (22) has a connector housing (35) formed on a lower side of a lower socket body (34), and a terminal receiving plate (36) projects from a side surface of the lower socket body. Terminal setting grooves (37) are formed in this terminal receiving plate (36).

Abstract: A pair of terminals includes contact parts to be contacted with each other for conduction. Respective one of the pair of terminals has respective one of discharge parts formed integrally thereto. The discharging parts are contacted with each other before contacting the contact parts. The discharging parts are disengaged from each other after disengaging the contact parts.

Abstract: A dummy tab is detachably held in a female connector housing. A dummy spring is detachably held in a male connector housing. When a male and female connection terminals are connected, the dummy tab comes into contact with the dummy spring before a contact protrusion comes into contact with a contact spring. This arrangement generates an arc discharge in the contact between the dummy tab and the dummy spring before the contact protrusion comes into contact with the contact spring, thereby to protect the female and male connection terminals as original contacts from deterioration or damage under an arc discharge.

Abstract: A first connection terminal for main power supply 15 and a first connection terminal for signal 16 are disposed in a female connector housing 14. A second connection terminal for main power supply 18 and a second connection terminal for signal 19 are disposed in a male connector housing 17. As the female and male connector housings 14, 17 are fitted to each other, the first connection terminal for main power supply 15 makes contact with the second connection terminal for main power supply 18 before the first connection terminal for signal 16 makes contact with the second connection terminal for signal 19. As the female and male connector housings 14, 17 are disengaged from each other, the first connection terminal for signal 16 breaks contact with the second connection terminal for signal 19 before the first connection terminal for main power supply 15 breaks contact with the second connection terminal for main power supply 18.

Abstract: Objects of this Invention

Abstract: A connector sealing structure comprises a first connector, a second connector that fits into the first connector, and a sealing pad inserted between the first and second connectors. The first connector has a first connector housing with a socket, and one or more terminal plugs. Each terminal plug has a pin projecting from the bottom of the socket. The second connector has a second connector housing with a leading face, and one or more terminal jacks inside the connector housing. Each terminal jack receives one of the terminal pins. The sealing pad is positioned between the leading face of the second connector and the bottom of the socket of the first connector. The sealing pad has one or more holes, each receiving one of the pins. A bank, which is made of an elastic material, is formed around the hole and tapers down toward the hole. The holes come into tight contact with the pins when the second connector is fit into the socket and pushed against the sealing pad.

Abstract: A dummy tab is detachably held in a female connector housing. A dummy spring is detachably held in a male connector housing. When a male and female connection terminals are connected, the dummy tab comes into contact with the dummy spring before a contact protrusion comes into contact with a contact spring. This arrangement generates an arc discharge in the contact between the dummy tab and the dummy spring before the contact protrusion comes into contact with the contact spring, thereby to protect the female and male connection terminals as original contacts from deterioration or damage under an arc discharge.

Abstract: A connector sealing structure comprises a first connector, a second connector that fits into the first connector, and a sealing pad inserted between the first and second connectors. The first connector has a first connector housing with a socket, and one or more terminal plugs. Each terminal plug has a pin projecting from the bottom of the socket. The second connector has a second connector housing with a leading face, and one or more terminal jacks inside the connector housing. Each terminal jack receives one of the terminal pins. The sealing pad is positioned between the leading face of the second connector and the bottom of the socket of the first connector. The sealing pad has one or more holes, each receiving one of the pins. A bank, which is made of an elastic material, is formed around the hole and tapers down toward the hole. The holes come into tight contact with the pins when the second connector is fit into the socket and pushed against the sealing pad.

Abstract: A female connector housing (4) has a terminal accommodation chamber (5) configured for accommodating therein a pair of male terminals (6) and provided with a leakage prevention wall (7) as a partition for dividing the terminal accommodation chamber (5) into a pair of divided terminal accommodation chambers (8) neighboring to each other for individual accommodation of the male terminals (6). A male connector housing (10) has a pair of neighboring terminal cavity block portions (11) configured for accommodation of female terminals, to be individually inserted into the divided terminal accommodation chambers (8), and to define therebetween a mating recess (13) for the leakage prevention wall (7) to be inserted therein. When the male connector housing (10) is fitted into the female connector housing (4), the leakage prevention wall (7) tight fits in the mating recess (13), thereby preventing water invasion.

Abstract: A printed circuit board connector 10 has a plurality of terminals 3 which connect the connector 10 to a printer circuit board and protrude outside from a rear wall surface 12a of a connector housing 12. Tip end portions of the terminals are bent into an L shape in parallel to the rear wall surface 12a and thereby aligned. A terminal cover 20 is detachably attached to the connector housing 12 so as to cover the terminals 3 and a tip end of an insulating wall 22 provided on the terminal cover 20 is fitted into a groove 15 formed in the rear wall surface 12a, whereby distances among adjacent terminals 3 can be widened and the insulation performance among the terminals 3 can be enhanced.

Abstract: A pair of terminals includes contact parts to be contacted with each other for conduction. Respective one of the pair of terminals has respective one of discharge parts formed integrally thereto. The discharging parts are contacted with each other before contacting the contact parts. The discharging parts are disengaged from each other after disengaging the contact parts.

Abstract: A connecting terminal provided with an arc discharge contact protruding forwardly and integrally formed at one side of a contact protrusion of a male terminal. The arc discharge contact comes into contact with the side surface of a side wall of a female terminal body before the contact protrusion of the male terminal comes into contact with a contact spring of the female terminal when the male terminal is connected to the female terminal.

Abstract: A female electrical terminal of the present invention has a box-like electrical contact section; a resilient contact member contained in the electrical contact section for electrical connection with a male terminal; and a low force insertion enabling means provided on the resilient contact member, which enables a reduction in the force with which to insert the male terminal into the electrical contact section and into electrical connection with the resilient contact member. The low force insertion enabling means is a cutout or a thin wall portion formed between a central portion of the resilient contact member and at least one of its front and rear ends.

Abstract: In combination, an electric terminal with an electric contact portion, the contact portion having a hollow square shape and comprising a ceiling wall with a shoulder formed at an end thereof on a side opposite a side where a mating terminal is fitted, a side wall, and a stabilizer including an extension plate extending in a height direction from the side wall and bent back on a side of the ceiling wall to provide a double layered plate; a connector housing with a terminal receiving cavity formed therein; and a terminal locking device mountable in a preliminary locked and full locked positions on the connector housing. The terminal locking device is movable from the preliminary locked position to the full locked position only when the electric terminal has been fully inserted into the terminal receiving cavity.

Abstract: A spacer retaining structure 1 of the invention includes: a housing 2 and a spacer 10. The housing has a hollow portion 5 arranged in the middle of a top wall 3a so as to pass through the housing 2 vertically and a plurality of terminal accommodating chambers 6. The spacer 10 moves within the hollow portion 5 from a temporarily retained position to a regularly retained position. The spacer 10 also has lock portions 9 at openings 8 that correspond to the terminal accommodating chambers 6 of the housing 2, and has beamlike flexible members 15 having temporarily retaining projections arranged on a front end face of the a side wall 11a and regularly retaining projections 14 arranged on a rear end face through slits 13. Each regularly retaining projection 14 is arranged close to a corner portion 20 between the side wall 11a and a top wall 18, and the slits 13 extend over the corner portion 20 between the side wall 11a and the top wall 18 so as to be at right angles to each other.

Abstract: A double lock connector in which a spacer is inserted into a housing to lock a terminal to the housing. The spacer has a flexible lock lance for primarily locking the terminal and a secondary lock protrusion for secondarily locking the terminal. The housing has a push protrusion which can bend the flexible lock lance toward the terminal. The bottom portion of the spacer is provided with a secondary lock protrusion which can protrude into the lower terminal receiving chamber of the housing.

Abstract: A female terminal formed by folding a piece of plate material has an electrical contact portion of a substantially quandrangular prism, which has a bottom plate portion and an opening and into which a flat male terminal is inserted through the opening for establishing an electrical connection between the male terminal and the female terminal. The female terminal also has a resilient contact piece which is formed in the electrical contact portion by folding an end portion of the bottom plate portion and which has a bent portion. In order to protect the bent portion of the resilient contact piece, a protecting wall portion for preventing the male terminal from contacting the bent portion of the resilient contact piece is so arranged as to cover a lower portion of the opening of the electrical contact portion.

Abstract: A joining structure for a box-shaped portion of a terminal lug used in electric wiring. One of the walls constituting the box-shaped portion is at the end provided with a locking claw, and the other wall is at the corresponding end provided with a locking hole into which the locking claw is fitted to join the walls to each other. The joining structure for the box-shaped portion of a terminal lug realizes a joint of high strength, enables a terminal lug to become small in size and light in weight, and is reliable.

Abstract: A female terminal in which excessive flexing of a resilient contact piece portion is prevented by simple working. The female terminal of the invention includes deformation prevention folded portions which are bent respectively at opposite side portions of a second folded piece portion toward a first folded piece portion. The deformation prevention folded portion supports the first folded piece portion in a maximumly-flexed position of the first folded piece portion. When a male terminal, having a proper thickness, is inserted into the female terminal, a predetermined gap is formed between the first folded piece portion and the deformation prevention folded portion.

Abstract: A connector has a dual terminal-fastening structure. Terminals each have an engagement hole and a engagement strap. The terminals are housed in terminal chamber formed in a housing. The terminal chamber has a support portion, which projects from the inner wall of the terminal chamber into the terminal chamber. The support portion supports a resilient fastening arm at an intermediate portion thereof. The resilient fastening arm extends within the chamber in a direction in which the terminal is inserted into the housing. The elongated resilient engagement arm has a first end portion and a second end portion. The second end portion engages the engagement hole of the terminal to hold the terminal within the terminal chamber. The housing is fitted into a terminal-fastener so as to fasten the terminals in place within the terminal chambers. The terminal-fastener is provided with first engagement portions and second engagement portions.