초록 ▼

A device for aiding insertion of a printed circuit card into, and removal of the card from, a receptacle, the card having electrical connectors along a first edge and the receptacle having a control member located to be adjacent a second edge of the card, opposite the first edge, when the card is in

A device for aiding insertion of a printed circuit card into, and removal of the card from, a receptacle, the card having electrical connectors along a first edge and the receptacle having a control member located to be adjacent a second edge of the card, opposite the first edge, when the card is inserted in the receptacle, the device comprising: an insertion-extraction lever pivotally mountable on the card at a pivot axis located between first and second arms of the lever, for pivotable movement between locking and extraction positions, the first lever arm being formed to cooperate with the control member when the card is inserted in the receptacle such that movement of the lever into the locking position causes the first lever arm to engage the control member to lock the card in the inserted position, and movement of the lever toward the extraction position causes the first lever arm to cooperate with the control member to move the card in a direction for removal from the receptacle; a catch mountable on the card adjacent the second edge at a location spaced from the pivot axis of the lever; and a latch member pivotally mounted to the second lever arm to positively engage the catch when the lever is in the locking position, the latch member being pivotable relative to the lever to a release position in which the latch member disengages from the catch.

대표청구항 ▼

A device for aiding insertion of a printed circuit card into, and removal of the card from, a receptacle, the card having opposed first and second edges and electrical connectors along the first edge and the receptacle having a control member located to be adjacent the second edge of the card when t

A device for aiding insertion of a printed circuit card into, and removal of the card from, a receptacle, the card having opposed first and second edges and electrical connectors along the first edge and the receptacle having a control member located to be adjacent the second edge of the card when the card is inserted in the receptacle, said device comprising: support means mountable on the card adjacent the second edge at a location which will be proximate to the control member when the card is inserted in the receptacle, said support means providing a first pivot axis which is transverse to the direction of insertion movement of the card in the receptacle; an insertion-extraction member in the form of a lever having first and second lever arms and pivotally mountable on said support means so that said first pivot axis is located between said first and second lever arms, said insertion-extraction member being pivotable about said first pivot axis between a locking position and an extraction position, said first lever arm being formed to cooperate with the control member when the card is inserted in the receptacle such that movement of said insertion-extraction member into said locking position causes said first lever arm to engage the control member to lock the card in the inserted position, and movement of said insertion-extraction member toward said extraction position causes said first lever arm to cooperate with the control member in a manner to move the card in the direction for removal from the receptacle; means defining a catch mountable on the card adjacent the second edge at a location spaced along the second edge from said support means; a latch member pivotally mounted about a second pivot axis to said second lever arm to engage said catch when said insertion-extraction member is in said locking position, said latch member being pivotable relative to said insertion-extraction member between a positive latching position in which said latch member positively engages said catch, when said insertion-extraction member is in said locking position, and a release position in which said latch member disengages from said catch; and resilient biasing means cooperating with said insertion-extraction member for applying a biasing force to said latch member at a position spaced from said second pivot axis, to pivot said latch member toward said catch thereby urging said latch member into said positive latching position.