Subscriber identity module (SIM) card holder

• US 5,790,659 A
• Filed: 08/30/1996
• Issued: 08/04/1998
• Est. Priority Date: 08/30/1996
• Status: Expired due to Term

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Strand, Oscar
• Primary Examiner(s): Chiang, Jack
• Application Number:
  US08/705,816
• Time in Patent Office: 704 Days
• Field of Search: 439/159, 439/152, 379/428, 379/429, 379/433, 379/434, 455/89, 455/90, 235/441, 235/483, 235/475-482, 235/492, 235/486
• US Class Current: 379/433.09
• CPC Class Codes: G06K 13/08 Feeding or discharging cards
• CPC Class Codes: G06K 7/0021 for reading/sensing record carriers having surface contacts

Abstract

A SIM card holder for a cellular telephone having enclosing front and rear covers and a printed circuit board, includes a base mounted in the cover, the base having a slot for receiving a SIM card on a shelf bordered by side and end walls. The slot opens into the battery compartment of the telephone. A plurality of electrical conductors are mounted in the base, each conductor having a card contact disposed on the shelf and a terminal extending from the base for connection with the printed circuit board in the telephone. An ejector is disposed for sliding movement on the base, which includes a body having an abutment wall for cooperation with an edge of the SIM card, and a button for manipulation of the ejector, the button extending from a slot in the cover.

Claims

1. A SIM card holder in a cellular telephone having enclosing front and rear covers and a printed circuit board, the SIM card holder comprising:

a base mounted in a cover, the base having a slot for receiving a SIM card in an axial inserting direction and forming a shelf to support the SIM card, the SIM card being insertable along an axis extending from the slot to a rear wall, the slot opening in a battery compartment of the telephone, wherein the slot is blocked by a battery positioned in said battery compartment;

a plurality of electrical conductors mounted in the base, each conductor having a card contact disposed on the shelf and a terminal extending from the base for connection with the printed circuit board; and

an ejector disposed for sliding movement on the base, the ejector including a body having an abutment wall for cooperation with an edge of the SIM card, and a button for manipulation of the ejector, the button extending through a slot in the cover.

2. The SIM card holder as claimed in claim 1, wherein the card contacts resiliently protrude through apertures in the shelf.

3. The SIM card holder as claimed in claim 2, wherein the card contacts are each formed as an arcuately bent end portion of an electrical conductive strip.

4. The SIM card holder as claimed in claim 1, wherein the conductors are formed from conductive metal strips.

5. The SIM card holder as claimed in claim 1, wherein the conductors are formed from electrically conductive elastomeric material.

6. The SIM card holder as claimed in claim 1, wherein the conductors are formed from electrically conductive flexible film.

7. The SIM card holder as claimed in claim 1, wherein the cover includes snap fasteners for fastening the base to the cover.

8. The SIM card holder as claimed in claim 1, wherein the base includes side walls on opposite edges of the shelf and an end wall at an end edge of the shelf.

9. The SIM card holder as claimed in claim 1, wherein the cover includes a rib extending toward the shelf to define with the shelf a space to retain the SIM card.

10. The SIM card holder as claimed in claim 1, wherein the base includes guide means for guiding the ejector for sliding movement in a longitudinal direction of the base.

11. The SIM card holder as claimed in claim 10, wherein the guide means comprises a recess formed in the shelf and a shoulder formed at a side edge of the shelf.

12. The SIM card holder as claimed in claim 1, wherein the body of the ejector includes an angled wall portion to mate with a chamfered corner of a SIM card, the angled wall portion set oblique to the insertion direction of the base to reject an incorrectly oriented SIM card.

13. A cellular telephone, comprising:

front and rear covers defining an enclosed space;

a printed circuit board disposed in the enclosed space;

a SIM card holder comprising a base mounted in one of said covers, the base having a slot for receiving a SIM card in an inserting direction and forming a shelf to support the SIM card, the slot and shelf being aligned on an insertion axis, a plurality of electrical conductors mounted in the base, each conductor having a card contact disposed on the shelf and a terminal extending from the base for connection with the printed circuit board, and an ejector disposed for sliding movement on the base, the ejector including a body having an abutment wall for cooperation with an edge of the SIM card and a button for manipulation of the ejector, the button extending through a slot in said cover, wherein the SIM card holder is positioned so that the slot opens into a battery compartment defined by the front and rear covers, so that a battery in the battery compartment blocks the slot.