Winding – tensioning – or guiding – Unwinding and rewinding a machine convertible information... – Including threading
Reexamination Certificate
2000-07-10
2001-11-20
Rivera, William A. (Department: 3653)
Winding, tensioning, or guiding
Unwinding and rewinding a machine convertible information...
Including threading
C242S532100, C242S532700
Reexamination Certificate
active
06318656
ABSTRACT:
The invention relates to a recording and/or reproducing device, into which a cassette can be loaded, which cassette comprises a housing and a rotationally drivable supply reel accommodated in the housing and a record carrier in the form of a tape wound onto the reel hub of the supply reel and a coupling element connected to the record carrier in the area of the free end of the record carrier and held in a coupling position, and which comprises a rotationally drivable take-up reel having a reel hub, and which comprises a pull-out element constructed to be coupled to the coupling element, and which comprises retaining means constructed to detachably retain the pull-out element and enabling the pull-out element to be retained in an area in which a coupling to the coupling element can be effected and from which the pull-out element is detachable after coupling to the coupling element, and which comprises controllable latching means which are movable between a latching position and a release position, in which latching position they can inhibit a disengagement of the pull-out element from the retaining means and in which release position they enable the pull-out element to be detached from the retaining means, and which comprises actuating means by which the pull-out element, together with the coupling element coupled thereto, can be moved away from the retaining means and up to the reel hub of the take-up reel, in order to bring into engagement with one another, on the one hand, the reel hub and, on the other hand, the pull-out element and the coupling element coupled thereto.
Such a recording and/or reproducing device of the type defined in the opening paragraph is known, for example from the patent document WO 98/44499 A1. In the known recording and/or reproducing device the retaining means are stationarily mounted in the recording and/or reproducing device and is connected to a wire spring having an offset portion, which spring forms a latching element which precludes a movement of the pull-out element as long as the wire spring forming the latching element is in its latching position. The wire spring can be moved from this latching position into a release position, the wire spring forming the latching element of the known recording and/or reproducing device being moved from its latching position into its release position when the cassette is loaded into the recording and/or reproducing device and is thus brought into its operating position. Since in the known recording and/or reproducing device the wire spring forming the latching element is moved with the aid the cassette, the situation may occur that the cassette moves the latching element although the coupling element in the cassette is not correctly or, in the worst case, not all coupled to the pull-out element. In this situation a movement of the pull-out element towards the take-up reel is possible although the coupling element is not correctly, i.e. unsatisfactorily, or, in the worst case, not all coupled to the pull-out element. This is a problem because it may result in incorrect operation which in the worst case leads to a repair, which is of course undesirable.
It is an object of the invention to preclude the aforementioned problems and to provide an improved recording and/or reproducing device of the type defined in the opening paragraph in a simple manner and using simple means, and in a simple manner, in which a joint movement of the pull-out element and the coupling element coupled thereto is always guaranteed after the pull-out element has been released by the latching means.
According to the invention, in order to achieve this object in a recording and/or reproducing device of the type defined in the opening paragraph, the latching means are constructed and arranged to cooperate with the coupling element, and the latching means only assume their latching position when the coupling element is correctly coupled to the pull-out element.
By taking the measures in accordance with the invention it is achieved in a particularly simple manner that the movement of the pull-out element is enabled only when the coupling element has been coupled to the pull-out element in an absolutely correct manner, thereby precluding malfunctions as a result of an incorrect coupling between the coupling element and the pull-out element.
Further embodiments of a recording and/or reproducing device in accordance with the invention have characteristic features as defined in the subsidiary Claims.
The above-mentioned as well as further aspects of the invention will become apparent from the embodiment described hereinafter by way of example and will be elucidated with reference to this example.
REFERENCES:
patent: 3664607 (1972-05-01), Trefzger
patent: 4330096 (1982-05-01), Bartel et al.
patent: 4635147 (1987-01-01), Durand et al.
patent: 5542620 (1996-08-01), Ohshita
patent: 6079651 (2000-06-01), Hamming
patent: 6082652 (2000-07-01), Theobald
patent: WO9844499 (1998-10-01), None
Rivera William A.
U.S. Philips Corporation
LandOfFree
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