JPH01173356A - Magnetic recording and reproducing device - Google Patents

Abstract

PURPOSE:To lighten the title device with the abolition of a holder by fitting a guide piece to the guide groove of the cassette side face. CONSTITUTION:When a cassette 1a is moved in a direction A by inserting it so that a guide piece 6 and guide groove 1b are fitted, it abuts to the 8d part of a stopper 8. With its further movement the stopper 8 is moved in a direction B with the 8d part being pushed by the cassette 1a, the abutment of a 8c part and the piece 6 comes off and the cassette 1a is vertically inserted into a magnetic recording and reproducing device. At this time the cassette 1a back face and the 8d face on the same plane as the 8b face of the stopper 8 are abutted. At the time when the cassette 1a is taken off, the piece 6 is moved to a position (A) when moved in a direction C by the power of a spring together with the cassette 1a and the stopper 8 is moved to a position (C) by the spring power. A releasing pin 14a and the 8b part are pushed in the direction B when a cassette cover 13 is rotated in a direction D and with further rotation the piece 6 is moved in the A direction by being pushed. By doing so, the title device can be lightened without using a linking mechanism by abolishing a holder.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a magnetic recording/reproducing device such as a home video tape recorder.

(Prior Art) An example of a conventional magnetic recording/reproducing device will be described below with reference to the drawings. FIG. 6 shows a cassette loading section of a conventional magnetic recording/reproducing apparatus. In FIG. 6, 91 is a cassette, 91a is a cassette lid that is biased in the closing direction by a spring, 92 is a holder for holding the cassette, 93 is a stand (left), 94 is a stand (right), 95
96 is an arm A, and 96 is an arm B forming an x-shaped link. By sliding at one end and rotating at the other end, the cassette 91 can be inserted into or taken out from the holder 92. The holder 92 is caused to reciprocate between the position No. 5 and a sixth position for holding the cassette 91 at a position where recording and reproduction are possible within the magnetic recording and reproducing apparatus. However, the link mechanism on the right side is omitted here.

(Problems to be Solved by the Invention) However, with the above configuration, it is not possible to reduce the weight of the holder by eliminating the holder, for example, so there is a problem that it is difficult to significantly reduce the weight. was.

In view of the above-mentioned problems, the present invention provides a magnetic recording/reproducing device having a very lightweight cassette mounting means without a holder.

(Means for Solving the Problems) In order to solve the above problems, the magnetic recording and reproducing apparatus of the present invention provides insertion guides in the height direction of the cassette provided on the left and right sides of the cassette that stores a magnetic tape therein. a pair of guide pieces that engage with the grooves; a first position where the guide pieces protrude outward from the magnetic recording/reproducing device in which the guide pieces can engage with the cassette; a guide piece guide means for guiding the guide piece to vertically reciprocate between a second position, which is a position of the guide piece when the guide piece is in a possible position; and a second position relative to the guide piece. a biasing means for applying a biasing force in the direction of the first position; a locking member for holding the guide piece in the first position; and a locking member for detecting that the cassette is correctly inserted into the magnetic recording/reproducing device. and a lock release member that enables movement of the guide piece from the first position to the second position.

(Function) With the above configuration, the present invention allows the cassette to be inserted into and taken out of the magnetic recording/reproducing device by engaging the guide piece with the guide groove on the side surface of the cassette, and perpendicular to the cassette, similar to the cassette mounting means of the conventional magnetic recording/reproducing device. This means that the holder can be moved and the weight can be significantly reduced by eliminating the need for a holder.

(Embodiment) A magnetic recording/reproducing apparatus according to an embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a perspective view of the main parts of a magnetic recording and reproducing apparatus according to an embodiment of the present invention. FIG. 2 is an exploded view of the periphery of the guide piece in an embodiment of the present invention, and FIGS. 3 to 5 are side views of essential parts for explaining movement of the periphery of the guide piece.

In FIG. 1, 1 and 1a are cassettes, particularly 1a is a cassette in a position where recording or reproduction is possible in a magnetic recording/reproducing device, 2 is a rotary head cylinder, 3 is a chassis, 4 is a stand, and 5 is a stand 4. A screw is attached to the chassis 3, 6 is a guide piece, 7 is a tension coil spring that applies an urging force in the E direction to the guide piece 6, 8 is a stopper, and a locking member and a lock release member are integrally formed. Reference numeral 9 denotes a tension coil spring that applies a biasing force in the F direction to the stopper of the locking member.

In FIG. 2, 4a is a guide groove of the guide piece 6, 4b
4C is the guide groove of the stopper 8, 4C is the spring hook part of the spring 7, 4
d is a spring hooking portion of the spring 9; 10 is a guide pin that engages with a guide groove 4b formed perpendicular to the stopper; 11.12
12 is a guide pin that engages with a guide groove 4a formed perpendicularly to the guide piece 6, and in particular, 12 has a spring hook portion for the spring 7.

In FIG. 3, 1b is a guide groove provided on the left and right side surfaces of the cassette, and 13 is a cassette cover which is rotatably supported on a rotating shaft 13a. A release arm 14 is formed integrally with the cassette cover 13.

A release pin 14a is formed integrally with the release arm 14 and extends toward the back side of the page.

The operation of the magnetic recording/reproducing apparatus configured as described above will be described below with reference to FIGS. 1 to 5.

The case of inserting a cassette into a magnetic recording/reproducing device will be explained. As shown in FIG. 3, the guide piece 6 is placed in the first position by the spring 7. Since the stopper 8 is in the third position C by the spring 9, the guide piece 6 is moved to the third position C of the stopper 8.
and cannot move in the direction of arrow A.

The cassette is inserted so that the guide piece 6 and the guide groove on the side surface of the cassette are engaged, and when the cassette is moved in the direction of arrow A, it comes into contact with a portion 8d of the stopper 8. When the cassette is further moved in the direction of arrow A, the portion 8d is pushed by the cassette, and the stopper 8 moves in the direction of arrow B, causing the portion 80 to come out of contact with the guide piece 6 (FIG. 4). This allows the guide piece 6 to move from the first position A to the second position, and the cassette is vertically inserted into the magnetic recording/reproducing apparatus. At this time, since the cassette back surface and the 8d surface of the stopper 8, which is the same surface as the 8b surface, are in contact with each other, the stopper 8 is held at the fourth position 2. Next, when taking out the cassette, the above operation is reversed, and the guide piece 6 located at the second position opening is moved together with the cassette in the direction of arrow C by the force of the spring 7.

When the cassette is moved in the direction of arrow C, the guide piece 6 moves to the first position A, and the stopper 8 moves to the third position C by the force of the spring 9.

Next, a case where the cassette is not inserted into the magnetic recording/reproducing apparatus will be explained. When the cassette cover 13 is rotated in the direction of the arrow, the release pin 14a comes into contact with the portion 8b of the stopper 8.

When the cassette cover 13 is further rotated in the direction of the arrow, the release pin 14a pushes the portion 8b of the stopper 8 in the direction of the arrow B, so the stopper 8 moves in the direction of the arrow B and reaches the fourth position 2. When the cassette cover 13 is further rotated in the direction of the arrow, the cassette cover 13 comes into contact with the guide piece 6. The guide piece 6 is pushed by the cassette cover 13 and moves in the direction of arrow A.

As described above, according to this embodiment, the guide piece 6 engages with the insertion guide groove provided on the left and right sides of the cassette, and the guide piece 6 is attached to the guide piece 6 from the second position opening in the direction of the first position A. When the tension coil spring 7 that applies force, the lock member that holds the guide piece 6 in the first position, and the cassette are correctly inserted into the magnetic recording/reproducing apparatus, the lock member is moved to the third position.
A stopper 8 integrally formed with a lock release member for moving from position C to a fourth position 2, and a first
A stand having a guide groove 4a that guides the reciprocating movement between the position A and the second position opening, and a guide groove 4b that guides the reciprocating movement of the stopper 8 between the third position C and the fourth position 2. 4, a tension coil spring 9 that applies a biasing force to the stopper 8 in the direction from the fourth position 2 to the third position C, and a lid member cassette cover 13 that closes the opening for attaching and detaching the cassette of the magnetic recording and reproducing device. By providing the lock release pin 14a and the lock release arm 14, which are lock release auxiliary members that move the stopper 8 in conjunction with the rotational movement of the cassette cover, the holder as in the conventional example is eliminated and a link mechanism is not used. The cassette can be vertically inserted into and removed from the magnetic recording/reproducing device, and the weight can be significantly reduced compared to the conventional method.

(Effects of the Invention) As described above, according to the present invention, the cassette holding member holder and link mechanism of the cassette mounting means used in the conventional magnetic recording/reproducing device are eliminated, and while achieving a significant weight reduction, Therefore, it is possible to provide a magnetic recording/reproducing device in which a cassette can be vertically inserted into and taken out from the magnetic recording/reproducing device.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the main parts of a magnetic recording/reproducing apparatus according to an embodiment of the present invention, FIG. 2 is an exploded view of the surrounding area of a guide piece according to an embodiment of the present invention, and FIGS. 3 to 5 are according to the present invention. FIG. 6 is a side view of a main part illustrating movement around a guide piece in one embodiment, and FIG. 6 is a perspective view of a main part of a conventional magnetic recording/reproducing apparatus. 1.1a...Cassette, 2...Rotating head cylinder, 3...Chassis, 4...Stand, 6.
・・Guide piece, 7, 9 ・・Tension coil spring, 8
...Stopper, 10°11, 12...Guide pin, 13...Cassette cover, 14...Release arm, 14a...Release pin. Patent applicant Matsushita Electric Industrial Co., Ltd.9I...vT2t

Claims (2)

[Claims] (1) A pair of guide pieces that engage with insertion guide grooves in the height direction of the cassette provided on the left and right sides of a cassette that stores a magnetic tape therein, and a magnetic recording device that allows the guide pieces to engage with the cassette. The guide piece moves between a first position protruding outward from the reproducing device and a second position, which is the position of the guide piece when the cassette is in a recording or reproducing position within the magnetic recording and reproducing device. a guide piece guiding means for guiding the guide piece to reciprocate vertically; a biasing means for applying a biasing force to the guide piece in a direction from a second position to a first position;
a lock member that holds the guide piece in the first position and a lock release member that allows the guide piece to move from the first position to the second position when the cassette is correctly inserted into the magnetic recording/reproducing device. A magnetic recording/reproducing device characterized by comprising: (2) a guide groove that guides the guide piece to reciprocate between the first position and the second position; a third position where the lock member holds the guide piece at the first position; a stand having a guide groove that guides reciprocating movement between the stand and the locking member; and a fourth position that allows movement from the first position to the second position.
a tension coil spring that applies a biasing force in the direction of the position; a lid member cassette cover that closes an opening for attaching and detaching the cassette of the magnetic recording/reproducing device; the third locking member.
Claim 1 (1) further comprising a lock release auxiliary member for moving from the position to the fourth position.
) The magnetic recording and reproducing device described in item 2.