Locks – Parts – attachments – accessories and adjuncts – For key-operated mechanism
Patent
1996-11-25
2000-04-18
Boucher, Darnell M.
Locks
Parts, attachments, accessories and adjuncts
For key-operated mechanism
70408, 70395, 34082534, 307 106, A44B 1500
Patent
active
060501189
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE ART
The present invention relates to a card key which is formed in a card shape and in which a transmitter element is built inside.
BACKGROUND OF THE ART
Conventionally, in a general relationship between a key and a lock(latch), mechanical irregularities formed at an insertion portion of a key body or magnetic force of an embedded magnet drive(s) a plurality of pins placed at an inner cylinder within the lock so as to move the pins extending over a boundary surface between the inner cylinder and a fixed outer cylinder. The inner cylinder is rotatable within the outer cylinder so as to be unlatched.
However, in such a mechanical combination of a key and a lock, unlocking is possible if the configuration of a duplicated key is the same as that of an original key, and further, it is difficult to protect such a mechanical lock from subversive activities.
Regarding in particular an engine key of a vehicle. even if the engine key is not used, an engine starter can be operated by directly connecting electrical wires. Consequently, a complete key function cannot be achieved by the general combination of a key and a lock.
Thus, in addition to the key insertion portion equipped with mechanical irregularities and a magnetic force generating portion, a key in which a transmitter element is built is proposed. As an example, the transmitter element can start or continue to operate a vehicle engine only if a receiver element provided at the vehicle receives a specific signal. In this way, movement of the vehicle can be prevented due to the direct connections of the electrical wires or the mechanical destruction.
In general, besides an original key, a so-called card key is used as a key for an automobile. The card key is a thin and light plate-shaped spare key which is made of a synthetic resin or the like and is produced so as to be ready for a case in which the original key is lost. However, unless the transmitter element is provided at the card key serving as a spare key, when the original key is lost, the card key cannot start the vehicle engine.
DISCLOSURE OF THE INVENTION
With the aforementioned in view, an object of the present invention is to provide a transmitter element at a card key so as to obtain, in case of using a spare key function, a card key provided with a transmitter element which can have the same transmitting function as an ordinary key.
The present invention is a card key provided with a transmitter element, comprising: a plate-shaped card key support; a plate-shaped key body which is held at said card key support and which includes a lock insertion portion; and a transmitter element which is mounted to said card key support so as to generate induced electromotive force.
In accordance with the present invention, the plate-shaped key body, which includes the lock insertion portion, and the transmitter element are held at the plate-shaped card key support. As an aspect of holding the transmitter element at the card key support, a recess is provided at the card key support so that the key body can be inserted into and held at the recess. When the key body is inserted and held in this way, the transmitter element is inserted into and held at a holding recess provided at the card key support. As a result, mounting of the transmitter element is reliable, and even if external force acts on the card key support, a large amount of stress does not act on the transmitter element. Within the holding recess, the transmitter element can be held by the elasticity of the card key support or by the adhesive agent. After the transmitter element is inserted, a cover member may be mounted to the recess so as to prevent removal of the transmitter element and to protect the transmitter element from the external force. In a case in which the transmitter element is heat resistant, the transmitter element may be directly filled in the card key support by insert molding or the like.
Further, a card key provided with a transmitter element, comprising: a plate-shaped card key support; an accommodating reces
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Boucher Darnell M.
Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho
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