Card holder

Claim 2

A holder for receiving a card with electronically stored data or a printed circuit board comprising: guide means disposed on said holder and a connector being provided with contact springs for contacting connection strips disposed on said card, one end of said spring being clamped while the other end is freely movable and makes contact with one of the connection strips when the card is inserted; characterized in that each contact spring has a first spring end part which is adjacent to the movable end of the contact spring, an intermediate spring part and a second clamped spring end part serving as connection terminal; said first contact spring part being disposed substantially perpendicular to the intermediate spring part, and said intermediate part being substantially perpendicular to the infeed plane of the holder; that the first spring part is spaced from the shifting plane of the connection strips; and that a stop element is located at the point where the first spring end part and the intermediate spring part join, said stop element extending from the plane of the first spring end part into the infeed plane of the holder.

Claim 3

A holder for receiving a card with electronically stored data or a printed circuit board comprising: guide means disposed on said holder and an connector being provided with contact springs for contacting connection strips disposed on said card, one end of said spring being clamped while the other end is freely movable and makes contact with one of the connection strips when the card is inserted; characterized in that each contact spring has a first spring end part which is adjacent to the movable end of the contact spring, an intermediate spring part bent into a U-shape and a second clamped spring end part serving as connection terminal, in which the one and the other legs of the U join the first and second spring end parts respectively, said first spring part being disposed substantially perpendicular to the intermediate spring part, and intermediate substantially perpendicular the in- said intermediate part being substantially perpendicular to the infeed plane of the holder; that a stop element is located at the point where the first spring end part and the intermediate spring part join, said stop element extending from the plane of the first spring end part into the infeed plane of the holder; that in the rest condition, the legs of the intermediate spring part converge slightly to each other in the direction of their ends; that the first spring end part extends slantingly past the shifting plane of the connection strips of the card; that a biasing rod having a substantially rectangular cross-section to be inserted and/or operated from outside is provided, said rod lying parallel to and between the stop elements and the bottom of the holder in the rest condition of the contact springs and when rotated by a fourth part of one revolution, the U-legs and so the first spring end parts are bent from the shifting plane of the connecting strips of the card, so that in the subsequent inserting of the card without contact pressure, said card abuts with its front edge against the stop elements of the contact springs, whereafter the biasing rod is newly rotated by a fourth of one revolution and then the contacting strips contact the contact points of the first end part of the springs.

Claim 4

A holder for receiving a card with electronically stored data or a printed circuit board comprising: guide means disposed on said holder and an connector being provided with contact springs for contacting connection strips disposed on said card, one end of said spring being clamped while the other end is freely movable and makes contact with one of the connection strips when the card is inserted; characterized in that each contact spring has a first spring end part which is adjacent to the movable end of the contact spring, an intermediate spring part bent into a U-shape and a second clamped spring end part serving as connection terminal, in which the one and the other legs of the U join the first and second spring end parts respectively, said first spring part being disposed substantially perpendicular to the intermediate spring part, and intermediate substantially perpendicular the in- said intermediate part being substantially perpendicular to the infeed plane of the holder; that a stop element is located at the point where the first spring end part and the intermediate spring part join, said stop element extending from the plane of the first spring end part into the infeed plane of the holder; that in the rest condition, the legs of the intermediate spring part converge slightly to each other in the direction of their ends; that the first spring end part extends slantingly past the shifting plane of the connection strips of the card; that a biasing rod having a substantially rectangular cross-section to be inserted and/or operated from outside is provided, said rod lying parallel to and between the stop elements and the bottom of the holder in the rest condition of the contact springs and when rotated by a fourth part of one revolution, the U-legs and so the first spring end parts are bent from the shifting plane of the connecting strips of the card, so that in the subsequent inserting of the card without contact pressure, said card abuts with its front edge against the stop elements of the contact springs, whereafter the biasing rod is newly rotated by a fourth of one revolution and then the contacting strips contact the contact points of the first end part of the springs.

Claim 5

A holder according to claim 1 of 2, wherein each of the contact springs and their respective stop elements are formed integrally from a single blank.

Claim 6

A holder according to claim 3, wherein the contact spring is formed so that the intermediate spring part extends past the first spring end part and, is successively bent back through 180 degrees and then through 90 degrees merging thereby into the first spring end part.

Claim 7

A holder according to claim 3, wherein the stop element is formed by at least one extension piece of the intermediate spring part extending along the first spring end part.

Claim 8

A holder according to claim 5, wherein the extension piece is bent in the direction of the first spring end part along a bending line which runs substantially parallel to the center line of the intermediate spring part.

Claim 9

A holder according to one of the preceding claims, wherein the end of the first spring part is further bent back through less than 180 degrees and makes contact with a connection strip of an inserted card.

Claim 10

A holder according to claim 3, wherein the intermediate spring part is successively bent back through 180 degrees and then through 90 degrees and merges into the second spring end part which is parallel to the first spring part.

Claim 11

A holder according to one of the claims 1, 3-8, characterized in that the first spring part and intermediate spring part enclose an angle smaller than 90 degrees.

Claim 12

A holder according to claim 2, characterized in that one or more first spring end parts are pre-bent to the infeed plane of the card more as to the remaining first spring end parts, so that the contact points thereof make earlier respectively disconnect later the contact with the contacting strips of the card than the contact points of the said remaining end parts when the rod is rotated by a fourth of one revolution for making respectively disconnecting the contact.

Claim 13

A holder according to claim 2 or 10, characterized in that the second spring end parts extend in upright position from the other U-leg of the contact springs through the bottom of the connector and project parallel to each other out of the connector at the side ` facing from the insert side.

Claim 14

A holder according to one of the preceding claims, characterized in that the contact springs are separated from each other by insulating partitions accanodated in the connector.

Claim 15

A holder according to one of the preceding claims, characterized in that the connector is provided with a non-conductive support located between the first spring end parts and the infeed plane of the holder and presenting a support face parallel to the holder infeed plane for supporting the said end parts in the rest position, that the said support has at its free end facing to the intermediate spring parts an inclined race for the first spring parts; and that the tip of said first spring end parts extends under an acute angle as to the support face.

Claim 16

A holder according to one of the preceding claims, wherein the second contact spring part is provided on its clamped end with forced-out points for an electrical connection with a flexible cable.