JPH01154348A - Tape cassette loading mechanism for tape player - Google Patents

Abstract

PURPOSE:To make a tape player smaller in size by constituting the player in such a way that the upper and lower holders of the player can make relative movement against each other and the slider of a tape cassette can be opened. CONSTITUTION:By forming two pairs of embossed projections 20a and 20b on the bottom section and a pair of bent pieces in the front section, a lower holder 20 which is fitted with platy elastic bodies projecting from wall sections on both sides and holds a tape cassette 10 and an upper holder 22 which is fitted with an elastically deformable hook 23 in the upper section and provided with a recessed part, in which the projected part of the holder 20 is put with a movable space, at the intermediate section, are provided separately from each other. The holders 20 and 22 are provided in a state where the slider 13 of the cassette 10 can be opened when the holders 20 and 22 make relative movement against each other. Therefore, no driving mechanism is required for driving the slider and, as a result, the player can be miniaturized.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a tape cassette mounting mechanism for a tape player for mounting a recording tape stored in a tape cassette at a performance position.

[Conventional technology′]

FIG. 1 shows an overview of a tape cassette used in a digital audio tape player. The tape cassette (10 is an upper case aυ and a lower case (6) for storing magnetic tape wound on a pair of tape reels, Slider 4 is slidably provided to cover the outer peripheral surface of the lower case (6), the upper case 0η, and the lower case (2).
The lid 04) is provided at the front opening of the lid 04). In addition, there is a protrusion protruding downward on the lower case 0 (
12a) is provided, and on the other hand, a first locking hole Q3a) and a second locking hole Q3a) that engage with this projection (12a) to regulate the position of the slider α] and a second locking hole Q3b are formed in the slider α field. At the first position where the projecting piece (12a) engages with the whistle locking hole (13), the slider (to) abuts on the lid qΦ and completely surrounds the magnetic tape, and at the same time At the position where the slider is engaged with the locking lever (134a), the slider (to) is completely separated from the lid σ→, making the lid α4 rotatable about its fulcrum Q4a).

Further, at this time, the opening (13C) of the slider a3 is arranged to face the reel hub (15) of the reel wound with the magnetic tape, and the rotating shaft for rotating the reel is inserted through this opening (13C). The slider α] is biased by a spring in the direction of contacting the lid 0→, and the magnetic tape is attached to the lower case (6) as shown by the dashed line.
It is arranged so as to run along the inner circumferential surface of the lid α from inside. Furthermore, the lid α4 has a groove (14b) at a position facing the projection (12a) with a depth corresponding to the plate thickness of the slide Q3, and a groove (14c) with a depth that does not expose the magnetic tape. It is formed.

When recording or reproducing using the tape cassette α0 configured in this way, in the tape player, it is necessary to expose the magnetic tape from the tape cassette α0 and bring it into contact with the magnetic head.
0, it is necessary to hold the slider u4 at the visible position and rotate the lid αΦ.

[Problem that the invention seeks to solve]

By the way, when such a tape player is used for an automobile such as a passenger car, there is a restriction in the installation space in the automobile, and the entire device must be made smaller.

The present invention has been made in view of these points, and is an object of downsizing the tape cassette mounting mechanism and, as a result, providing a compact and lightweight tape player.

[Means for solving problems]

The tape player according to the present invention is divided into a lower holder that locks the slider of the tape cassette and an upper holder that locks the case of the tape cassette, and the lower holder is movable relative to the upper holder. .

[Effect]

In the tape player according to the present invention, by dividing the upper holder and the lower holder, the lower holder can be moved relative to each other, so that the slider can be effectively moved to a position where the magnetic tape is exposed by the tape cassette insertion operation. At the same time, it is possible to make the device more compact by reducing the insertion distance.

〔Example〕

Hereinafter, one embodiment of the present invention will be described in detail with reference to FIGS. 2 to 8.

In Fig. 2, (1) is a 0-shaped lower holder that supports the tape cassette a0, and as shown in Fig. 3, two pairs of ejection projections (20a) and (20b) are formed on the bottom surface. A pair of bent pieces (20c) are formed at the front part, and a plate-like elastic body υ protrudes from both side walls.
is installed. (Support) is a 0-shaped upper holder that holds the tape cassette 00 together with the lower holder holder, and a hook (2) that can be elastically deformed is attached to the upper part. The side wall portion of this upper holder @ is formed in a 0-shape, and a convex portion (20d) of the side wall of the lower holder (7) is arranged at this intermediate opening portion (22a) with a predetermined movement space. In addition, there are arc-shaped protrusions (20e) on each opposing surface.
(22b) is formed to reduce friction during movement. (To) is a pair of guide plates arranged on both sides of the holders (A) and (E), which include a linear guide groove @4a), a stepped guide groove (24b) continuous with an inclined part, and this guide groove. (24b) An elliptical guide groove placed at the tip of (24b)
24c) is formed, and a pair of pins (24d) are formed on the outer side surface. A pin (2) attached to the lower holder 4 and a pin (2) attached to the upper holder 4 are inserted into the guide groove (24a) of this guide plate (24a). In Fig. 3, (7) is a shift lever that is swingably attached to the upper holder 4.
, a groove (28a) that is engaged with the pin (to) is formed, and a pin (28b) that is engaged with the guide R (24b) is formed.
) is installed. 4 is an arm rotatably provided on the upper holder, which has an arc-shaped groove (29a) into which the pin @ is pushed, and which is inserted into the guide groove (24b) (24c) of the guide plate □. The pin to be engaged (2
9b) is installed. ... is provided on the free end side of the arm holder facing the bottom surface of the lower holder ..., and is an elastically deformable dog-shaped spring; 0]) is a guide plate □□□
A side plate provided on the outside of the L-shaped groove (3
1a) and a vertical groove (axb) are formed, and a groove (3
1a) has a pin (E), and a groove (31b) has a pin (24d).
) are engaged. The function is a square-shaped locking piece provided on the inner side wall of the plate Qυ, and Q is an arm rotatably provided on the outer side wall of the plate 1). A guide groove (33a) is formed, and the groove (31) of the plate Cυ is formed in this guide hlj (33a).
The pin (1) through a) is engaged. Further, a gear is formed on the outer periphery of this arm, and is configured to transmit driving force from a motor (not shown).

(b) Connect the side plate 0υ and attach it to the upper holder)
The upper plate is attached to cover the upper part, and a link mechanism is formed on the inner circumferential side of the upper plate as shown in Fig. 4, and a tape cassette head is attached to a pair of tips (35a). It is configured so that it can be accessed. (to) is a pin protruding from the upper plate (b) opposite to the L-shaped engagement piece (to).

With this configuration, when the tape cassette αQ is inserted into the holder (E) Q, the slider 0 is moved to the lower boulder (1
), the end face is locked to the bent piece (20c) and the locking hole (13a) (13b) of the slider (to) is moved.
), the protrusions (20a) and (20b) of the lower holder holder face each other and push up the protrusion (12a) of the lower case (6), and the lower case Q moves independently from the slider (2). becomes possible. For this reason, the case αυ(2
) is pushed in further than the slider α: due to the insertion force of the tape cassette QO, and the upper surface is pressed by the hook (G), and the tip of the lid α→ is held in a state locked by the spring ■. Become. At this time, the slider o3 is held at a slightly retreated position with respect to the lower case (2), and an elastic body Cυ is pressed against the side wall surface of the slider αa, and the entire tape cassette α0 is held in an ejected state (first position). (shown in Figure 5).

Next, when the tape cassette QO is further pushed in with the aim of shifting the tape cassette α0 to the playing state (it is not necessarily necessary to temporarily stop the tape cassette in the eject state),
The link mechanism □□□ is moved by the lid α→, and a switch (not shown) is turned on. Power is supplied to the motor when the switch is turned on, and the rotational force of this motor is applied to the arm (C). communicated. As the arm trowel rotates, the lower holder (E) and the upper boulder) are inserted into the guide groove (24a) of the guide plate (C).
(Z4b), and as shown in Fig. 6, when the pin (28b) of the shift lever (2) moves along the slope of the guide groove (24b), the shift lever (to) moves downward. This causes the lower holder (1) to move relative to the upper holder @ (in the direction opposite to the traveling direction. At this time, the bent piece (20) of the lower holder (a)
Since the slider (to) is locked by C), the slider (to) is pushed back against the lower case (2), causing the slider (2) to shift to the open state as shown in Figure 1. be able to.

Note that the relative movement of the holders (7) and (2) is due to the protrusion (2oe).
(22b) allows for smooth operation. Furthermore, when the arm Q rotates and pushes the holder (A) forward, the guide groove (24b) of the guide plate (C)
the pin (29b) of arm 4 is engaged with, and
Since the guide groove (24a) of the guide plate is engaged with the pin of the upper holder (E), the guide groove (
When moving along the slope 24b), the arm holder is rotated forward and upward by approximately 30 degrees as shown in FIG. At this time, the lid α is positioned above the locking piece −, and the pin (1) of the upper holder @ is positioned at the orthogonal part of the L-shaped groove (31a) in the side plate Oυ.

After that, when the arm (to) rotates further, the pin (4)
moves downward along the groove (31a), and the plate ■ also moves downward due to the engagement between the groove (31b) and the pin (24d), pulling the tape cassette a1 downward. Become. At this time, the arm holder is locked to the locking piece (to), so the arm (support) rotates further and is held at a rotation position of about 90 degrees from the initial state as shown in Figure 8. The magnetic tape is completely removed from the cassette case, and a guide post (not shown) is positioned inside the magnetic tape. Thereafter, by the movement of this guide post, the magnetic tape is pulled out and wound around the rotating cylinder, and the reel hub 4 of the tape cassette QQ is fitted onto a rotating shaft (not shown), and the rotation of this rotating shaft causes the magnetic tape to travel. This movement causes the magnetic head attached to the rotating cylinder to detect the signals recorded on the magnetic tape.

Next, when the tape cassette att is to be taken out, when the eject switch is operated, the arm is rotated in the opposite direction, and first, the entire guide plate (1) and the holder (1) move upward. In addition, at this time, if the lid α-ring is deformed due to thermal deformation or the like and does not rotate in the closing direction despite the urging force of the spring urging the lid α-ring in the closing direction, the pin (to) This will cause the lid (1L plaster) to come into contact with the upper surface of the α4 in the direction of closing the opening of the lower case (A).Furthermore, when the arm (to) rotates, the lid a4 (3 'L)(1z) is closed, and the upper case bracket moves more than the lower case bracket, allowing it to return to the initial eject state position.Under this condition, tape cassette 0
When Q is pulled out, the protrusion (12a) becomes the protrusion (2Db) (
20a), and the slider 03 also pushes into the projection (20a).
0b) (20a), and since the slider 03 is also biased toward the lid α side by the spring, the upper case αυ side moves relative to the slider (6),
The slider α1 is pulled out with its end surface in contact with the lid 0, that is, with the magnetic tape completely accommodated.

Note that, by first supporting the tape cassette G() in the ejected state, there is an advantage that the transition to the playing state can be effected by an electric signal using, for example, a remote control device.

As described above, in the embodiment of the present invention, the lower holder holder and the upper holder (A) are formed separately and configured to be relatively movable, so that the drive for opening the slider a1 of the tape cassette αQ is There is no need to provide a separate mechanism, and the lower holder (4) or upper holder (
In 2), a concave portion was provided on one side of the opposing surface of the side wall portion, and a convex portion was provided on the other side, and these concavo-convex portions were engaged through a predetermined movement space, so that the distance of movement of the tape cassette 00 required to open the slider side was reduced. As a result, the width (depth) of the device in the tape cassette insertion direction can be reduced. In addition, since it is not necessary to overlap both side walls of the holder (7), the size of the side walls in the thickness direction can be reduced, thereby contributing to downsizing of the tape player.

Furthermore, pins (7) (E) are provided at the same height positions on the uneven parts of the lower holder (E) and the upper holder 4, and these pins (A) and (7) are connected to the guide plate (
Since it is configured to engage with the same guide groove (24a) of (c), the height of the guide plate (c) can be suppressed, and the opening mechanism of the slider (2) is formed in this suppressed space. It becomes possible to arrange the guide groove (24b).

Furthermore, by engaging the pin (29b) and the guide groove (24b), the arm 4 is rotated slightly, and then by engaging the arm (g) with the locking piece (2), the arm 4 is rotated approximately 90 degrees. Since the structure is configured to rotate and open the lid α, the arm can be rotated smoothly, and there is no need to provide an inclined part required for the arm (g) to rotate 90 degrees. Therefore, there is an advantage that the height and the length in the depth direction of the guide plate (c) can be suppressed. Further, even if the lid 0 does not rotate due to deformation, it can be pushed back by the pin and returned to the direction of closing the opening of the case Ql).

Although the above embodiment describes a digital audio tape player for automobiles, it can also be applied to a digital audio player for home use that has a recording function, and also to a tape player that records or plays back data. It is possible to apply.

〔Effect of the invention〕

As explained above, the present invention provides an upper holder that supports the case side of the tape cassette and a lower holder that supports the slider of the tape cassette separately, and configures these to be relatively movable. There is no need for any drive mechanism to drive the slider, and as a result, it is possible to contribute to downsizing of the tape player.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an outline of a tape cassette used in a digital audio tape player, FIG. 2 is an exploded perspective view showing a tape cassette loading mechanism which is an embodiment of the present invention, and FIGS. 3 and 4 are An exploded perspective view showing the configuration of the main parts in Figure 2, Figures 5, 6, 7, and 8 are
It is a side view which shows the main part operation state in a figure. In the diagram, 0 is the old cassette, αυ is the upper case, (P
5 is the lower case, αa is the slider, (13a) (13b
) is the locking hole, 04) is the lid, (g) is the lower holder, (
20a) (20b) is a protrusion, (20c) is a bent piece, (20d) is a convex portion, (20e) is a protrusion, eO is an elastic body, ■ is an upper holder, (22a) is a protrusion, (c) is a guide plate % (24a) (24b) is the guide groove, (C) is the shift lever-1 wing is the arm, ■ is the spring, C (
υ is a side plate, (31a) is an L-shaped groove, 2) is a locking piece, (to) is an arm, and 31a is a link mechanism. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Claims] A tape cassette containing a magnetic tape is mounted through an upper case, a lower case, a slider slidably mounted on the lower case, and a lid rotatably mounted to these cases. a lower holder having a bottom surface formed with a protrusion that engages with the locking hole of the slider and a tip portion formed with a bent piece that locks the tip of the slider; and a separate piece for the lower holder. and an upper holder formed to support the upper case, the lower holder and the upper holder being relatively movable so as to open the slider of the tape cassette. mechanism.