JPH08235702A - Device for attaching and detaching recording medium - Google Patents

Abstract

PURPOSE: To easily attach and detach a recording medium to/from a loading position by fitting a recording medium holder movably between a housing position for positioning the recording medium housed at the time of closing a lid into the prescribed loading position and an exposing position for exposing the recording medium in a sidewise position of the lid to the lid or a chassis. CONSTITUTION: When a lock releasing knob 25 of a tape recorder 21 is slid, the lid 23 is released from its lock, and the lid 23 is opened by spring force of a tension spring 34 against a main body 22, i.e., the chassis 28. At this time, since a projection piece 48d of a spring member 48 is engaged with a receiving piece 30a of a chassis holder 30, the holder 30 is also opened in accordance with the opening motion of the lid 23, while the lid 23 and the holder 30 are brought in a slightly opening state between them by spring force of leaf springs 42 of the holder 30. By forming such a prescribed gap between the lid 23 and the holder 30, a tape cassette CT is allowed to enter and leave the recording medium holder 29 without interference with the lid 23. Then, the holder 29 is turned into the exposing position. The cassette CT is largely exposed from the lid 23 in accordance with the turning of the holder 29, hence the cassette CT is caught and taken from the recorder 21.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording medium attachment / detachment device that facilitates attachment / detachment of a recording medium to / from a loading position of an apparatus body.

[0002]

2. Description of the Related Art Conventionally, there is provided a cassette tape recorder (some of which can record and reproduce and some of which is dedicated to reproduction) which can be listened to by a small headphone whose size is one size larger than that of an audio tape cassette by the name of headphone stereo. Has been done. Such a small cassette tape recorder has a main body having an empty space where the tape cassette is loaded, and a lid attached to the main body so as to openably and closably cover the empty space. Open and do it.

FIG. 14 is an explanatory view showing how the conventional tape cassette is attached to and detached from the loading position. As shown in FIG. 14, the small cassette tape recorder 101 has a generally rectangular parallelepiped shape, and has a main body 102 and a lid 103 attached to the main body 102 so as to be openable and closable.

When attaching or detaching the tape cassette CT,
The lid 103 is opened to the state shown in FIG. 14, and a person holds the both end surfaces (positions indicated by arrows A and B) of the tape cassette CT with fingers, and the direction of an outlined arrow C substantially parallel to the plane of the lid 103. It was inserted straight in and out.

[0005]

As described above, since the surface of the tape cassette CT is hidden by the lid 103 when the tape cassette CT is attached / detached, the portion for gripping the tape cassette CT is conventionally used. Is limited to a part of both end surfaces of the tape cassette CT as described above. However, since this portion is the narrowest surface of the tape cassette CT and at the most distant positions from each other, it is a portion that is difficult to grasp with a fingertip.

Further, the direction in which the tape cassette CT is inserted / removed is also limited to a predetermined direction. If this angle is deviated, the tape cassette CT interferes with other parts of the tape recorder 101 and the tape cassette CT is smoothly attached / detached. Could not be done.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an attaching / detaching device capable of easily attaching / detaching a recording medium such as a tape cassette to / from its loading position. I am trying.

The term "recording medium" as used herein means
Normally, what is contained in a casing and handled includes the casing.

[0009]

To achieve the above object, a recording medium attaching / detaching device according to the present invention has a chassis, a lid which can be opened and closed with respect to the chassis, and a recording which is accommodated when the lid is closed. Relatively movable to the lid or the chassis so that it can be moved between a storage position where the medium is located at a predetermined loading position and an exposure position where the recording medium stored when the lid is opened is exposed to the side of the lid or the chassis. And a recording medium holder attached to the recording medium holder.

Preferably, the recording medium holder is rotatably attached to the lid or the chassis.

Further, for a recording medium having a substantially rectangular planar shape, the recording medium holder is provided with a position regulating surface that abuts at least two end faces corresponding to two adjacent sides of the rectangle. In this case, a spring member that presses the accommodated recording medium toward the position regulating surface is provided at a position facing the one of the position regulating surfaces in the storage position in the lid or the chassis.

Further, when the lid is opened, a predetermined gap is formed between the lid and the recording medium holder.

For example, the recording medium is a tape cassette containing a magnetic tape, and the recording medium holder has a hub hole pressing spring that abuts against the hub hole of the tape cassette and presses the hub hole.

[0014]

When the recording medium holder is moved to the exposed position when the lid is opened, the recording medium holder exposes a wide portion of the contained recording medium from the lid and the chassis, facilitating the handling operation when attaching or detaching the recording medium. To

For a recording medium having a rectangular plane shape,
By providing the recording medium holder with the position regulating surface that abuts on at least two adjacent sides of the recording medium, the degree of freedom in the operation of moving the recording medium in and out of the recording medium holder is increased. The spring member holds the recording medium in the recording medium holder at the storage position.

By forming a predetermined gap between the lid and the recording medium holder when the lid is opened, it is possible to reduce the possibility that the recording medium interferes with the lid when the recording medium comes in and out.

The hub hole pressing spring abutting the hub hole of the tape cassette holds the tape cassette in the recording medium holder by pressing the hub hole by its own elastic force.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a schematic perspective view of a tape recorder having a recording medium attaching / detaching device according to an embodiment of the present invention.

As shown in FIG. 1, the tape recorder 21 according to the present embodiment is a cassette tape having a small rectangular parallelepiped shape, which is a size obtained by enlarging the size of an audio tape cassette having a substantially rectangular plane shape by one size. It is a recorder, and generally has a main body 22 and a lid 23 attached to the main body 22 so as to be openable and closable. A pair of lock claws 24 face the upper surface of the front wall of the main body 22, and the lock claws 24 are closed by engaging with notches (not shown) provided on the lower surface of the front edge of the lid 23. The lid 23 is sometimes locked to the main body 22. An unlocking knob 25 is provided on the front wall of the main body 22, and by sliding the unlocking knob 25 in the lateral direction, the lock claw 24 is rotated to unlock the lid 23. Incidentally, as this lock mechanism, a known one used in this type of tape recorder can be used.

A cavity for loading a tape cassette is provided inside the main body 22, drive shafts 26, 27 for engaging reels of the tape cassette are provided therein, and
Various parts such as a magnetic head, a capstan, a pinch roller, and a tape guide are arranged on an inner portion (not shown in the figure) of the front wall of the main body 22.

A chassis 28 is fixed in the main body 22, while a recording medium holder 29 for accommodating a tape cassette as a recording medium is attached to the lid 23 side.

FIG. 2 is a perspective view of the chassis portion of the present embodiment shown with the lid omitted, FIGS. 3 and 4 are plan views of the chassis portion showing the closed and open lid states, and FIGS. 5 and 6 are the same. It is a side view of a chassis part showing a closed lid state and an opened lid state, respectively.

As shown in FIG. 2, the chassis 28 is in the shape of a generally rectangular flat plate, and the edge portion 2 standing upright on three sides thereof.
8a and a trapezoidal cutout 28b is formed on the remaining side, and a large-thickness portion of the tape cassette when the lid is closed is placed in the void formed by the cutout 28b when the main body is assembled. It is supposed to be done.

A chassis holder 30 is rotatably attached to the chassis 28. That is, the chassis holder 30 has an elongated shape extending on the chassis 28 so as to be stretched over the opposite edge portions 28a, and the bent portions formed at both ends of the chassis holder 30 have ends of the edge portions 28a on both sides of the chassis 28. It is rotatably supported on the edge via a pin 31.

Further, a recording medium holder 29 is rotatably attached to one end of the chassis holder 30. The recording medium holder 29 has a flat box shape slightly larger than the outer shape of the tape cassette CT for accommodating the tape cassette CT (FIG. 3) which is a recording medium. In this embodiment, as shown in FIGS. As shown, the planar shape is a substantially right triangle. As shown in FIG. 3, the box-shaped recording medium holder 29 has an oblique side portion opened, and the tape cassette CT is inserted into and removed from the recording medium holder 29 through the rectangular shape of the rectangular plane of the tape cassette CT. Two adjacent sides and a triangular portion surrounded by a diagonal line are located inside the recording medium holder 29.

The surfaces of the recording medium holder 29 corresponding to the two orthogonal sides of the right triangle are the position regulating surfaces 29a of the tape cassette CT, and the two adjacent end surfaces of the tape cassette CT are in contact with these surfaces 29a. Tape cassette C
The T is positioned in the recording medium holder 29.

Specifically, for example, the recording medium holder 29 is composed of two parts, that is, an upper plate of the recording medium holder and a lower plate of the recording medium holder, both of which are fixed to each other by fixing means such as caulking although not shown. It is configured in a triangular box shape. A hinge portion is formed at a right-angled corner portion of the recording medium holder 29, and the hinge portion rotatably supports one end portion of the chassis holder 30 via a pin 32. This rotation axis is a direction perpendicular to the paper surface in FIG. 3, and is a direction substantially orthogonal to the rotation axis of the chassis holder 30 with respect to the chassis 28 described above.

Here, as shown in FIG. 4, the recording medium holder 29 has an exposed position which is most rotated in the clockwise direction, and FIG.
As shown in FIG. 5, the cover 23 and the chassis 28 can be rotated between a storage position housed between them. At the exposed position, a part of the recording medium holder 29 is located on the side of the cover 23 and the chassis 28. The tape cassette CT housed in the recording medium holder 29 at this time is also exposed to one side, and the corner portion on the opposite side of the recording medium holder 29 is the lid 23 and the chassis 2.
It will be exposed greatly from 8. On the other hand, at the storage position, the recording medium holder 29 positions the tape cassette CT at a predetermined loading position when the lid is closed.

Further, as shown in FIGS. 5 and 6, a lid 23 is rotatably attached to a bent portion of the chassis holder 30 via a pin 33. This rotation axis is parallel to the rotation axis of the chassis holder 30 with respect to the chassis 28 described above. The lid 23 is in the shape of a rectangular flat plate having the same size as the planar shape of the main body 22, and has edges 23a standing on the four sides thereof. However, as shown in FIG. 1, a cutout portion 23b is partially provided in the edge portion 23a of one side so as not to interfere with the recording medium holder 29 exposed to the side by being rotated as described later. ing.

As described above, the lid 23 and the chassis 28 are hingedly connected to each other with the chassis holder 30 interposed on one side. Then, the lid 23 and the chassis 28
Are constantly biased by tension springs 34 so as to open each other. That is, as shown in FIGS. 5 and 6, the lid 2
The link 35 is pivotally attached to the corresponding edge portion 28a of the chassis 28 via a pin 38, and the link 35 is pivotally attached to the corresponding edge portion 28a of the chassis 28 at the substantially center of the edge portions of the third link 35.
The ends of 37 are pivotally attached to each other via pins 39.
The hook portion 40 is formed at the other end of the link 37 on the chassis 28 side, and the hook portion 41 is also formed at the end portion of the chassis 28.
The tension spring 34 is stretched between the hook portions 40 and 41. Therefore, in the free state, as shown in FIG.
3 and the chassis 28 are opened, and the lid 23 is rotated against the spring force so that the lid 23 and the chassis 28 are closed as shown in FIG. 5 and 6, the lid 23 is shown in cross section, and the edge portion of the lid 23 to which the link 35 is pivotally attached is not shown in the drawings.

Further, as shown in FIGS. 2 and 3, the plate springs 42, 4 are formed on the chassis holder 30 by punching.
3 are formed. The leaf spring 42 is the chassis holder 30.
VII-V of FIG.
As shown in FIG. 7 showing the II cross section, the tip extends outward (inner wall surface side of the lid 23). These leaf springs 42
Contacts the inner wall surface of the lid 23 and presses it against the inner wall surface to form a predetermined gap between the lid 23 and the chassis holder 30 when the lid is opened, as shown in FIG.

The other leaf spring 43 is the chassis holder 3
8 is a cross-sectional view taken along line VIII-VIII of FIG.
As shown in FIG.
Side). This leaf spring 43 is used for the recording medium holder 2
The recording medium holder 29 is pressed against the outer surface of the recording medium holder 9 by pressing it.
Prevents rattling.

The recording medium holder 29 of this embodiment is provided with a structure for stably accommodating the tape cassette CT therein. As shown in FIGS. 3 and 9 showing the IX-IX cross section of FIG. 3, the one surface of the recording medium holder 29 (the surface of the lid 23 side) has its hub when the tape cassette CT is housed inside. The hub hole pressing spring 44 is formed at the position where the hole 50 is located, and the tape cassette CT
A side surface pressing spring 45 is formed at a position where a substantially central portion of the plane is located.

The hub hole pressing spring 44 projects relatively inwardly into a spherical shape so as to abut the peripheral edge of the hub hole 50, and a U-shaped groove 46 is cut around the hub hole pressing spring 44. The hub hole pressing spring 44 is formed in a tongue shape so as to obtain appropriate elasticity. Therefore, when the tape cassette CT is loaded into or unloaded from the recording medium holder 29 as shown in FIG. 6, the tape cassette CT abuts on the portion projecting inward of the hub hole pressing spring 44 so that the hub hole pressing spring 44 has its own elasticity. Deformation causes the tape cassette CT to flex while allowing the tape cassette CT to pass therethrough.
9 reaches a predetermined position, the hub hole pressing spring 44 engages with the hub hole 50 and presses it to hold the tape cassette CT at a predetermined position as shown in FIG.

The side surface pressing spring 45 is the hub hole pressing spring 44.
It is formed as a tongue-like spring by projecting inwardly into a spherical shape and having a U-shaped groove 47 formed in the same manner as the tape in the recording medium holder 29 as shown in FIG. Pressing the side of the cassette CT, the tape cassette C
It is designed to hold T.

Further, in the present embodiment, as shown in FIG. 2, the recording medium holder 29 regulates only the two sides on one side of the tape cassette CT by the two position regulating surfaces 29a, so that the recording medium as shown in FIG. A spring member 48 is provided for stabilizing the tape cassette CT housed in the holder 29. That is, as shown in FIGS. 3 and 4, the spring member 48 is provided on the edge portion 23a of the lid 23 on the side opposite to the side on which the recording medium holder 29 is attached. FIG. 10 is a side view of the spring member 48, and FIG. 11 is a front view thereof. The spring member 48 includes a mounting body 48a and the mounting body 48a.
It has a leaf spring portion 48b extending from and is attached to the edge portion 23a of the lid 23 using an attachment hole 48c provided at one end. As shown in FIG. 4, the leaf spring portion 48b in the attached state is one of the position regulating surfaces 2 of the recording medium holder 29.
9a, which projects inward so as to face the tape cassette C
When the T is loaded, as shown in FIG.
8b contacts the side end surface of the tape cassette CT and presses the tape cassette CT against the position regulating surface 29a of the recording medium holder 29 by its spring force.

A projecting piece 48d is further formed on the spring member 48, while a receiving piece 30a which engages with the projecting piece 48d is formed on the chassis holder 30 as shown in FIG. 2 (FIGS. 3 and 4). 4). These protruding piece 48d and receiving piece 30a
Is slightly separated when the lid 23 is closed as shown in FIG. 5, but when the lid 23 is opened as shown in FIG. 6, the projecting piece 48d abuts the receiving piece 30a, and this engagement is performed. Thus, the positional relationship between the lid 23 and the chassis holder 30 is regulated via the spring member 48 so that no gap is opened beyond a certain opening.

Taking out the tape cassette CT from the tape recorder 21 in this embodiment having such a configuration will be described. First, the unlocking knob 25 shown in FIG.
When is slid, the lid 23 is unlocked, and the lid 23 is opened with respect to the main body 22, that is, the chassis 28 by the spring force of the tension spring 34. At this time, since the protruding piece 48d of the spring member 48 is engaged with the receiving piece 30a of the chassis holder 30, the chassis holder 30 is moved along with the opening movement of the lid 23.
(Recording medium holder 29) is also opened, and the chassis holder 3
Due to the spring force of the leaf spring 42 of 0, the space between the lid 23 and the chassis holder 30 is also slightly open when viewed from the housed state (see FIG. 6). In this way, the lid 23 and the chassis holder 3
By forming a predetermined gap with 0 (recording medium holder 29), the tape cassette CT can be taken in and out of the recording medium holder 29 without interfering with the lid 23.

Next, the recording medium holder 29 is rotated to the exposed position. This state is the state shown in FIG.
As the recording medium holder 29 rotates, the tape cassette CT
Is largely exposed from the lid 23. Next, the exposed tape cassette CT is grasped and the tape cassette CT is taken out from the tape recorder 21 (FIG. 12B).

In this case, since the flat surface portion (wide surface) of the tape cassette CT can be grasped, the tape cassette CT can be easily handled, and the tape cassette CT can be used by the recording medium holder 2.
Since only about half is accommodated in 9, the extraction direction is relatively free.

Next, when loading the tape cassette CT into the tape recorder 21, first, the tape cassette CT is accommodated so as to be placed on the position regulating surface 29a of the recording medium holder 29 in the open state (FIG. 13A). ). In this case, since the open portion of the recording medium holder 29 corresponding to the hypotenuse of the right triangle is open toward the front, the tape cassette C
It is easy to insert T, and the position to grip the tape cassette CT and the inserting direction are not particularly limited. In other words, since the recording medium holder 29 positions the two adjacent side end surfaces of the tape cassette CT, it is not necessary to pay particular attention to the insertion direction, and the position regulating surface 29a of the bottom portion of the recording medium holder 29 is generally used. The tape cassette CT is moved toward the recording medium holder 29 by moving the tape cassette CT toward the recording medium holder 29.
It will be naturally placed in the regular position of.

Here, the tape cassette CT that has entered the recording medium holder 29 is pressed against the inner wall surface of the recording medium holder 29 by the hub hole pressing spring 44 and the side surface pressing spring 45 provided in the recording medium holder 29. It is held in place.

Subsequently, the recording medium holder 29 is rotated to the storage position (FIG. 13B), and the lid 2 is moved from that state.
When 3 is closed against the spring force of the tension spring 34, the lid 23 is locked and the loading is completed (FIG. 13 (c)).

As shown in FIG. 3, when the lid is closed, the spring member 48 presses the tape cassette CT against the position regulating surface 29a of the recording medium holder 29 to hold the tape cassette CT at a predetermined position.

In the above embodiment, the recording medium holder 2 is used.
Although the example in which 9 is rotatably attached to the chassis holder 30 that interlocks with the lid 23 is shown, the present invention is not limited to this, and other examples, such as directly attaching to the lid,
Alternatively, it may be attached to the chassis side. Further, instead of being rotatably attached, it may be moved relative to the lid or chassis by, for example, parallel movement.

Further, in the above-mentioned example, the example of the tape cassette which accommodates the magnetic tape as the recording medium is shown, but the attaching / detaching device of the present invention is not limited to this, and in addition to this, a disc-shaped recording such as an optical recording medium. Needless to say, the present invention can also be applied to a device for attaching / detaching a medium (floppy disk, mini disk, etc.).

[0048]

As described above in detail with reference to the embodiment, according to the present invention, the recording medium holder for accommodating the recording medium is positioned at the predetermined loading position with the recording medium accommodated when the lid is closed. The recording medium holder is moved to the exposed position when the lid is opened because it is attached to the lid or chassis so that it can be moved between the storage position and the exposed position where the recording medium stored when the lid is opened is exposed to the side of the lid. Therefore, a wide portion of the recording medium housed in the recording medium holder can be exposed from the lid and the chassis. Therefore, it becomes possible to handle the recording medium with a wide surface, and the direction of taking it out is relatively free.

Similarly, when a recording medium is loaded, the recording medium can be easily inserted into the recording medium holder at the exposed position without any particular restriction on the gripping position or the inserting direction.

In particular, for a recording medium having a rectangular plane shape, the recording medium holder is provided with a position regulating surface that abuts on two adjacent sides of the recording medium, so that the recording medium can be freely moved in and out of the recording medium holder. And the operability is further improved.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of a tape recorder having a recording medium attaching / detaching device according to an embodiment of the present invention.

FIG. 2 is a perspective view of a chassis portion of the present embodiment, which is shown with a lid omitted.

FIG. 3 is a plan view of a chassis portion of this embodiment showing a closed state.

FIG. 4 is a plan view of a chassis portion of this embodiment showing an open state.

FIG. 5 is a side view of a chassis portion of this embodiment showing a closed state.

FIG. 6 is a side view of the chassis portion of this embodiment showing an open state.

7 is a sectional view taken along line VII-VII in FIG.

8 is a sectional view taken along line VIII-VIII of FIG.

9 is a sectional view taken along line IX-IX in FIG.

FIG. 10 is a side view of the spring member according to the present embodiment.

FIG. 11 is a front view of a spring member according to the present embodiment.

FIG. 12 is an explanatory diagram when a recording medium is taken out in the present embodiment.

FIG. 13 is an explanatory diagram when loading a recording medium in the present embodiment.

FIG. 14 is an explanatory diagram of attachment / detachment with respect to a loading position of a conventional tape cassette.

[Explanation of symbols]

 21 tape recorder 22 main body 23 lid 28 chassis 30 chassis holder 34 tension springs 42, 43 leaf springs 44 hub hole pressing spring 45 side pressing spring 48 spring member

Claims (6)

[Claims] 1. A chassis, a lid that can be opened and closed with respect to the chassis, a storage position that positions a recording medium that is stored when the lid is closed, and a recording medium that is stored when the lid is opened. And a recording medium holder attached to the lid or the chassis so as to be movable relative to the exposure position where the recording medium is exposed to the side. 2. The recording medium attaching / detaching apparatus according to claim 1, wherein the recording medium holder is rotatably attached to the lid or the chassis. 3. A plane shape of a recording medium is substantially rectangular, and the recording medium holder has a position regulating surface that abuts at least two end faces corresponding to two adjacent sides of the rectangle. Item 1. A recording medium attaching / detaching apparatus according to item 1 or 2. 4. The cover or the chassis is provided with a spring member for pressing the accommodated recording medium toward the position regulating surface at a position facing one of the position regulating surfaces at the accommodation position. 4. The recording medium attaching / detaching device according to claim 3, wherein: 5. The recording medium attaching / detaching apparatus according to claim 1, wherein a predetermined gap is formed between the lid and the recording medium holder when the lid is opened. 6. The recording medium is a tape cassette containing a magnetic tape, and the recording medium holder has a hub hole pressing spring that abuts against a hub hole of the tape cassette and presses the hub hole. The apparatus for attaching / detaching a recording medium according to claim 1.