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US 4,538,191 AGranted
Magnetic card reader
AssigneeNippondenso Co., Ltd.
InventorsAkihiro Suzuki, Keiichi Souda, Masao Kuno, Hiroshi Ikuta
Life of this patent
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Abstract
A magnetic card reader comprises guide members providing a card path for guiding a magnetic card. In order that a magnetic head is provided with an elasticity and the reading surface of the magnetic head follows the distortion or inclination of the card, the magnetic head is made rotatable by being held by a pair of elastic members and a pair of support members for journaling the ends of the elastic members.
Claims19
A magnetic card reader, comprising:
- guide members including an interior card path having space larger than the thickness of a magnetic card for guiding the movement of the magnetic card;
- and
- holding means provided in said guide members for holding a transducer to face said path, said transducer reading data recorded on said magnetic card when said magnetic card is moving by it;
- said holding means including
- a movable assembly including a holding frame for holding said transducer, a pair of elastic members, with ends, extending in the direction of movement of said magnetic card in a manner to hold said holding frame and a pair of bar-shaped members, with respective outer peripheries adapted to permit rotation thereof, formed at the ends of the elastic members, said bar-shaped members extending in the direction of movement of the magnetic card,
- a pair of support members for supporting said bar-shaped members by contacting the respective outer peripheries thereof, said support members supporting said movable assembly with respect to said guide members along a rotational axis having a direction parallel to the direction of movement of said magnetic card, and
- paired positioning members respectively provided on one of said guide members on opposite sides of said holding frame for engaging said pair of elastic members urge said pair of elastic members away from said one guide member to place said elastic members so as to define an initial position of said transducer.
4 more elements
A magnetic card reader, comprising:
- a first and second guide members fixedly arranged parallel to each other and defining therebetween a card path for guiding movement of a magnetic card, said first guide member being provided with an opening;
- a flexible plate having first and second end portions and an intermediate portion;
- first and second bar members, with shapes adapted to permit rotation thereof, fixed to said first and second end portions of said flexible plate, respectively;
- first and second support members fixedly positioned on said first guide member beside said opening of said first guide member along the moving direction of said magnetic card, said first and second support members rotatably supporting said first and second bar members, respectively, so that said intermediate portion of said flexible plate spacedly faces said opening of said first guide member;
- and
- a magnetic head fixed to said intermediate portion of said flexible plate and extending into said card path through said opening of said first guide member, said first and second bar members cooperating with said first and second end portions of said flexible plate and said first and second support members to bias said magnetic head for movement in a direction toward said card while permitting rotation along an axis formed by said first and second end portions of said flexible plate.
3 more elements
A magnetic card reader, comprising:
- a card guide having upper and lower plates forming a passage for movement of a magnetic card therebetween, said upper plate having an opening to expose a reading surface of said magnetic card;
- a magnetic head;
- a holding frame for fixedly holding said magnetic head;
- a pair of elastic members respectively extending from opposite sides of said holding frame outwardly along a direction of movement of said magnetic card, said elastic members having free ends not attached to said holding frame;
- a pair of bar members with shapes adapted to permit rotation thereof, respectively fixed to said free ends of said pair of elastic members;
- a pair of support members fixed on said upper plate of said card guide respectively on opposite sides of said opening along the direction of movement of said magnetic card, said pair of support member supporting said pair of bar members rotatably and slidably along the axis thereof such that said magnetic head is projected downwardly through said opening of said upper plate;
- and
- a pair of positioning members provided on said upper plate of said card guide, said pair of positioning members respectively abutting against said pair of elastic members in the vicinity of the opposite sides of said holding frame to urge said pair of elastic members away from said upper plate to define an initial position of said magnetic head and to increase elastic force of said pair of elastic members against said magnetic card.
5 more elements
Dependencies are inferred from the claim text.