Card device

A method of assembling a card device for accommodating a circuit board, wherein the card device is configured to be inserted into and pulled out from a card slot in an apparatus in which the card device is to be mounted, the card device comprising a card casing and anti-slipping member anchored and exposed at a rear-end peripheral wall portion of the card casing for being held by a user at least when the card device is inserted or pulled out, the rear-end wall peripheral portion being positioned at a rear end of the card device which is opposite to an insertion direction in which the card device is inserted into the card slot;

• wherein the card casing includes a front casing piece that covers a front side of the circuit board and a back casing piece that covers a back side of the circuit board,
• wherein at least one of the front casing piece and the back casing piece of the card casing has a rear-end-face-forming wall portion that stands upright from a flat casing surface covering the circuit board and that defines the rear-end peripheral wall portion of the card casing, the rear-end-face-forming wall portion having at least one notch extending from an upright edge of the rear-end-face-forming wall portion toward a base thereof,
• wherein the anti-slipping member includes at least one support portion that extends into the card casing from the outside of the card casing through the at least one notch in the rear-end- face-forming wall portion and an internal latch portion provided on a part of the at least one support portion that is disposed inside the card casing, the internal latch portion being engaged with an inner surface of the rear-end-face-forming wall portion that faces the inside of the card casing so as to prevent the anti-slipping member from being detached,
• said method comprising the steps of:
• assembling the front casing piece and the back casing piece together while the at least one support portion of the anti-slipping member is disposed in the at least one notch and the internal latch portion is engaged with the inner surface of the rear-end-face-forming wall portion so that the anti-slipping member is anchored at the rear-end peripheral wall portion of the peripheral wall of the card casing,
• placing the upright edge of the rear-end-face-forming wall portion in contact with the casing piece assembled thereto at a contact position;
• and
• bonding together the front casing piece and the back casing piece by ultrasonic welding at the contact position;
• wherein the front casing piece and the back casing piece are both made of a resin material,
• wherein the anti-slipping member is formed of a material that is not welded by ultrasonic waves when the ultrasonic waves are applied to bond the front casing piece and the back casing piece together;
• and
• providing a part of a bonding portion of the front casing piece and the back casing piece to be melted by the ultrasonic waves applied to bond the front casing piece and the back casing piece;
• melting said bonding portion part by said ultrasonic waves, the bonding portion part being disposed and sized so that the resin material flows into the at least one notch toward the at least one support portion of the anti-slipping member and is cured there to form a projection that projects from a wall surface of the at least one notch toward the at least one support portion so as to press a surface of the at least one support portion.

A card device comprising a circuit board and a card casing accommodating the circuit board, wherein the card device is configured to be inserted into and pulled out from a card slot in an apparatus in which the card device is to be mounted, and wherein an anti-slipping member is anchored at a rear-end wall portion of a peripheral wall of the card casing in a section of the card device that can be held in a state in which the card device is inserted in the card slot, the anti-slipping member being anchored such that the anti-slipping member is exposed at a surface of a section of the card device at which the card device is held when the card device is inserted or pulled out, the rear-end wall portion being positioned at a rear end of the card device in an insertion direction in which the card device is inserted into the card slot, the card casing including a front casing piece made of a resin material that covers a front side of the circuit board and a back casing piece made of a resin material that covers a back side of the circuit board,

• wherein at least one of the front casing piece and the back casing piece of the card casing has a rear-end-face-forming wall portion that stands upright from a flat casing surface covering the circuit board and that defines the rear-end wall portion of the card casing, the rear-end-face-forming wall portion having at least one notch extending from an upright edge of the rear-end-face-forming wall portion toward a base thereof,
• wherein the anti-slipping member includes at least one support portion that extends into the card casing from an outside of the card casing through the at least one notch in the rear-end-face-forming wall portion and an internal latch portion provided on a part of the at least one support portion that is positioned inside the card casing, the internal latch portion being engaged with an inner surface of the rear-end-face-forming wall portion that faces the inside of the card casing so as to prevent the anti-slipping member from being detached, and
• wherein the front casing piece and the back casing piece are assembled together with the at least one support portion of the anti-slipping member being placed in the at least one notch and the internal latch portion being engaged with the inner surface of the rear-end-face-forming wall portion so that the anti-slipping member is anchored at the rear-end wall portion of the peripheral wall of the card casing, and wherein the upright edge of the rear-end-face-forming wall portion is in contact with the casing piece assembled thereto at a contact position, the front casing piece and the back casing piece being bonded together by ultrasonic welding at the contact position, the anti-slipping member including a main body that covers the rear-end wall portion of the card casing and portions extending from both ends of the main body along both side surfaces of the card casing, the extending portions partially covering both side surfaces of the card casing in areas near the rear-end wall portion, the anti-slipping member being formed of a material that is not welded by ultrasonic waves when the ultrasonic waves are applied to bond the front casing piece and the back casing piece together.

A card device comprising a circuit board and a card casing accommodating the circuit board, wherein the card device is configured to be inserted into and pulled out from a card slot in an apparatus in which the card device is to be mounted, and wherein an anti-slipping member is anchored at a rear-end wall portion of a peripheral wall of the card casing such that the anti-slipping member is exposed at a surface of a section of the card device at which the card device is held at least when the card device is inserted or pulled out, the rear-end wall portion being positioned at a rear end of the card device in an insertion direction in which the card device is inserted into the card slot,

• wherein the card casing includes a front casing piece that covers a front side of the circuit board and a back casing piece that covers a back side of the circuit board,
• wherein at least one of the front casing piece and the back casing piece of the card casing has a rear-end-face-forming wall portion that stands upright from a flat casing surface covering the circuit board and that defines the rear-end wall portion of the card casing, the rear-end-face-forming wall portion having at least one notch extending from an upright edge of the rear-end-face-forming wall portion toward a base thereof,
• wherein the anti-slipping member includes at least one support portion that extends into the card casing from an outside of the card casing through the at least one notch in the rear-end-face-forming wall portion and an internal latch portion provided on a part of the at least one support portion that is positioned inside the card casing, the internal latch portion being engaged with an inner surface of the rear-end-face-forming wall portion that faces the inside of the card casing so as to prevent the anti-slipping member from being detached,
• wherein the front casing piece and the back casing piece are assembled together with the at least one support portion of the anti-slipping member being placed in the at least one notch and the internal latch portion being engaged with the inner surface of the rear-end-face-forming wall portion so that the anti-slipping member is anchored at the rear-end wall portion of the peripheral wall of the card casing, and wherein the upright edge of the rear-end-face-forming wall portion is in contact with the casing piece assembled thereto at a contact position, the front casing piece and the back casing piece being bonded together at the contact position,
• wherein the front casing piece and the back casing piece are both made of a resin material and are bonded together by ultrasonic welding,
• wherein the anti-slipping member is formed of a material that is not welded by ultrasonic waves when the ultrasonic waves are applied to bond the front casing piece and the back casing piece together, and
• wherein portions of the front casing piece and of the back casing piece melted by the ultrasonic waves applied to bond the front casing piece and the back casing piece together flow into the at least one notch into toward the at least one support portion of the anti-slipping member and are cured to form a projection that projects from a wall surface of the at least one notch toward the at least one support portion so as to press a surface of the at least one support portion.