JPH0650838Y2 - Cassette lid opening / closing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to an opening / closing device for a lid of a magnetic recording / reproducing apparatus that uses a tape cassette provided with a lid for protecting the tape that can be opened and closed.

(B) Conventional technology A magnetic recording / reproducing device in which a tape cassette with a lid for protecting the tape is horizontally inserted from the front is widely used by VTRs, and recently is also used in a digital audio tape recorder (DAT). Has been done.

The cassette of this type of device is horizontally and vertically transferred by a cassette holder as described in, for example, JP-A-58-85966 (GIIB15166), and the cassette is moved from the insertion position to the mounting position. .

To open the lid of the cassette, the lid is opened by the lever for opening when the cassette moves vertically. Therefore, a long moving distance of the vertical movement of the cassette is required to completely open the lid. Met.

(C) Problems to be Solved by the Invention Therefore, according to the conventional lid opening / closing device, the vertical movement of the main body of the apparatus is required because the vertical movement of the cassette requires a long moving distance to completely open the lid. However, there is a problem in that it cannot be made thin.

(D) Means for Solving the Problem In order to solve the above-mentioned problems, the present invention horizontally transfers a cassette holder for holding a tape cassette provided with a lid for protecting the tape openable and closable by an L-shaped guide groove. And a cassette loading device for moving the tape cassette vertically from the insertion position to the loading position, in which a horizontal groove extending in the horizontal transfer direction of the cassette holder and an inclined groove inclined at one end of the groove downward. A fixed guide plate having a pair of guide grooves formed of an inclined groove part that is inclined obliquely upward at the other end of the groove part, and a pair of controls that extend in the horizontal transfer direction of the cassette holder and have a bending part at a substantially intermediate portion. A control slide having a groove formed therein and moving in the same direction in relation to the horizontal transfer operation of the cassette holder; A lid opening lever having a guide groove and a pair of guide pins inserted into the pair of control grooves of the control slide, and having an opening piece that comes into contact with an open end of the lid of the cassette held by the cassette holder. , When the tape cassette is horizontally transferred and the control slide is moved in the horizontal direction, the lid of the tape cassette is slightly opened by the rotation of the lid opening lever, and when the tape cassette is vertically moved, the lid is opened. The present invention proposes an opening / closing device for a cassette lid, which is characterized in that the opening piece of the lever is in contact with the open end of the lid and is completely opened by vertical movement of the cassette.

(E) Operation According to the present invention described above, when the cassette is transferred horizontally together with the cassette holder, the lid of the cassette is first slightly opened with the transfer, and then the cassette is vertically moved together with the cassette holder. When moving in the direction, the lid can be opened only in the remaining range to be in a completely opened state, so that the vertical movement distance for opening the lid can be reduced.

(F) Example An example of the present invention will be described below.

Reference numeral 1 denotes a tape cassette provided with a lid 2 for protecting the tape which can be opened and closed. The lid 2 is biased in a closing direction by a spring (not shown). A cassette holder 3 is provided between the left fixed guide plate 4 and the right fixed guide plate 5 so as to be horizontally moved and vertically moved by L-shaped guide grooves 6 and 7.
The cassette 1 is horizontally inserted into the cassette holder 3 from the direction in which the lid 2 is present, and the cassette 1 is transferred together with the cassette holder 3 from the insertion position to the mounting position.

That is, guide pins guided by the L-shaped guide grooves 6 and 7 are integrally formed on the side surface of the cassette holder 3, and an inclined guide groove for driving the cassette holder 3 is formed on a control slide 10 described later. Then, the guide pin of the cassette holder 3 is inserted. With such a configuration, the cassette holder is guided by the L-shaped guide grooves 6 and 7 by horizontally driving the control slide 10, and is horizontally and vertically transported.

Reference numerals 8 and 9 denote horizontal groove portions 8a, 9a extending in the horizontal transfer direction of the cassette holder 3, inclined groove portions 8b, 9b inclined obliquely downward at one end side of the horizontal groove portion and diagonally upward at the other end side of the horizontal groove portion. A pair of guide grooves composed of inclined groove portions 8c and 9c inclined to each other, which are formed in the fixed guide plate 4.

Reference numeral 10 denotes a control slide that is arranged parallel to the fixed guide plate 4 and is provided so as to move in the insertion direction of the cassette 1. The control slide 10 moves in the same direction in relation to the horizontal transfer operation of the cassette holder 3. To do.

Reference numerals 11 and 12 denote a pair of control grooves extending in the horizontal transfer direction of the cassette holder 3 and having a bending portion at a substantially middle portion,
Formed on the control slide 10.

The positional relationship between the pair of guide grooves 8 and 9 and the pair of control grooves 11 and 12 is as shown in FIGS. 3 and 4.

Reference numeral 13 denotes an open end portion of the lid 2 of the cassette 1 held by the cassette holder 3 in which a pair of guide pins 14 and 15 are inserted into the pair of guide grooves 8 and 9 and the pair of control grooves 11 and 12, respectively.
It is a lid opening lever having an opening piece 13a that comes into contact with 2a.

Next, the operation of the above-described device of the present invention will be described.

FIGS. 1 and 3 show an initial state in which the tape cassette 1 is held by the cassette holder 3 and horizontally transferred. At this time, the pair of guide pins 14 and 15 of the lid opening lever 13 are paired with the fixed guide plate 4. It is located at the position of the inclined groove portions 8b and 9b of the guide grooves 8 and 9, and is located below the pair of control grooves 11 and 12 of the control slide 10. Therefore, the lid opening lever 13 swings slightly counterclockwise, and the opening piece 13a is located slightly below the moving path of the lid 2 of the cassette 1.

When the cassette holder 3 moves horizontally from this state, as shown in FIG. 5, the open end 2a of the lid 2 of the cassette 1 is positioned above the open piece 13a of the lid opening lever 13, and at the same time the control slide 10 moves in the same direction. By moving, the middle bent portion 11a of the control groove 11 abuts on the guide pin 14, and the abutment causes the lid
The opening bar 13 swings slightly clockwise. This allows
The opening piece 13a of the lid opening lever 13 comes into contact with the open end 2a of the lid 2 of the cassette 1, pushes the lid 2 in the direction of arrow A, and opens the lid 2 slightly.

Then, as the horizontal movement of the cassette holder 3 progresses, the control slide 10 continues to move together with the cassette 1, and the control groove 11
The bending portion 11a interlocks the guide pins 14 and 15 in the same direction, positions the guide pins 14 and 15 in the inclined groove portions 8c and 9c of the guide grooves 8 and 9, and moves the lid opening lever 13 upward (arrow B). Fixed in the state of parallel movement to.

Then, as the cassette holder 3 moves downward along the L-shaped guide groove, the opening 2a of the lid 2 contacts the opening piece 13a of the lid opening lever 13, so that the lid 2 is placed under the cassette 1. As shown in FIG.
As a result, the lid 2 is completely opened.

That is, in this state, the cassette 1 is in the mounted state.

Next, the ejection operation of the cassette 1 is performed by moving the control slide 10 in the direction opposite to the above, that is, in the cassette ejection direction, so that the cassette 1 together with the cassette holder 3 is
It will move upwards and will be horizontally transferred and discharged.

At this time, the lid opening lever 13 causes the bending portion 12a of the other control groove 12 of the control slide 10 to abut against the other guide pin 15 as shown in FIG. 6, and the guide pins 14 and 15 guide the guide pins 14 and 15 in this abutting state. The grooves 8 and 9 are moved from the horizontal groove portions 8a and 8b toward the inclined groove portions 8b and 9b, and the lid opening lever 13 returns to the original state shown in FIG. As a result, the lid 2 of the cassette 1 is completely closed.

(G) Effect of the Invention Since the cassette lid opening / closing device of the present invention is configured as described above, the cassette lid can be completely opened without requiring a large vertical downward movement distance of the cassette. Therefore, it is possible to reduce the vertical dimension of the entire apparatus and to make it thinner.

[Brief description of drawings]

1 and 2 are perspective views of the device of the present invention in different states,
3 and 4 are side views in different states, and FIGS. 5 and 6 are diagrams for explaining the process of operation. 1 ... Tape cassette, 2 ... Lid, 3 ... Cassette holder, 4 ... Fixed guide plate, 6,7 ... L-shaped guide groove, 8, 9
...... A pair of guide grooves, 10 …… Control slide, 11,12 ……
A pair of control grooves, 13 ... Lid opening lever, 14, 15 ... A pair of guide pins.

Claims (1)

[Scope of utility model registration request] 1. A cassette holder for holding a tape cassette provided with a lid for protecting the tape which can be opened and closed is horizontally moved and vertically moved downward by an L-shaped guide groove to move the tape cassette from an insertion position to a mounting position. In the cassette mounting device, a pair of horizontal groove portions extending in the horizontal transfer direction of the cassette holder, a pair of inclined groove portions inclined obliquely downward at one end side of the groove portions and inclined groove portions inclined obliquely upward at the other end side of the groove portions. A fixed guide plate having guide grooves formed therein and a pair of control grooves extending in the horizontal transfer direction of the cassette holder and having a bending portion at a substantially intermediate portion are formed in the same direction in relation to the horizontal transfer operation of the cassette holder. Inserted into the pair of control grooves of the fixed guide plate, and the pair of control grooves of the control slide. A pair of guide pins provided integrally with each other, and a lid opening lever having an opening piece that comes into contact with an open end portion of the lid of the cassette held by the cassette holder, and the tape cassette is horizontally transferred. When the control slide is moved horizontally, the lid of the tape cassette is opened slightly by the rotation of the lid opening lever, and when the tape cassette is moved vertically, the opening piece of the lid opening lever is opened. An opening / closing device for a cassette lid, which is completely opened by vertically moving the cassette in a state of being in contact with the cassette lid.