JP2679128B2 - Cassette tape recorder - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a cassette tape recorder.

2. Description of the Related Art In recent years, technical competition on the hardware side such as miniaturization and thinning of cassette tape recorders has been remarkable among companies, but on the other hand, the soft side such as operability is often neglected.

FIG. 7 is a block diagram of a conventional general small and thin cassette tape recorder, where 1 is a reel stand 2 and a capstan 3
And the like, which is a substrate of a mechanism for driving the tape in the tape cassette 4, and 5 is a head block which has a magnetic head 6 and a pinch roller 7 and is configured to be rotatable with respect to the mechanism substrate 1. Reference numeral 8 is a bottom cabinet for accommodating the volume 9, slide switch 10, jack 11 and mechanism, and 12 is a cassette lid for accommodating the tape cassette 4 which is rotatable with respect to the mechanism substrate 1 like the head block. The chain double-dashed line shows the state where the cassette lid 12 is opened.

However, in the conventional configuration as described above, the cassette lid 12 has to be rotated by 60 ° to 70 ° with respect to the mechanism substrate 1 in relation to the capstan 3 in order to attach / detach the tape cassette 4. , Firstly poor operability, secondly cassette lid
If the tape cassette 4 is taken in and out while the rotation of 12 is incomplete, the tape cassette 4 hits the capstan 3 and the performance is adversely affected.

Therefore, in view of these conventional problems, the present invention has good operability even in a small and thin cassette tape recorder,
It is another object of the present invention to provide a tape recorder that enables the attachment / detachment of a tape cassette that gives a high-class feeling.

Means for Solving the Problems In order to achieve the above object, a cassette tape recorder according to the present invention is a mechanism substrate provided with a mechanism having a capstan and a reel base for driving a tape accommodated in a tape cassette, and a mechanism substrate. Elevating means for supporting the cassette lid so as to transfer the tape cassette housed in the cassette lid in a direction perpendicular to the substrate, and a capstan and a reel stand on the mechanism substrate rotatably supported with respect to the mechanism substrate. A head block having a magnetic head and a pinch roller to which a biasing force is applied, horizontal transfer means for transferring the tape cassette housed in the cassette lid in the horizontal direction with respect to the mechanism substrate, and the tape cassette with respect to the mechanism substrate. Provided on the mechanism substrate when moving vertically The capstan or the reference pin is provided with a means for acting as a stopper for the horizontal movement of the tape cassette by engaging the capstan insertion hole or the reference pin provided in the tape cassette. is there.

Further, the cassette tape recorder of the present invention is such that the surface of the magnetic head peripheral member, which is inserted from the direction of the magnetic head when the tape cassette is mounted, on the mechanism substrate side is aligned with the inner end surface of the head insertion opening of the tape cassette. It is characterized in that a means for converting the vertical movement of the head block into the rotational movement of the head block is added.

Further, the cassette tape recorder of the present invention is such that when the tape cassette is pushed against the mechanism substrate against the biasing force that pushes it horizontally, the head insertion opening of the tape cassette is brought close to the mechanism substrate, and the capstan insertion hole of the tape cassette is inserted. It is characterized in that a means for locking the biasing force is added so as to prevent the tape cassette from coming off by engaging the capstan.

Further, the cassette tape recorder of the present invention is provided with elevating means on both sides of the cassette lid, and is constituted by an X-shaped ring mechanism for moving the tape cassette and the cassette lid in a direction perpendicular to the mechanism substrate. The X-type link mechanism on the side provided with the locking means urges the cassette lid in the opening direction, that is, the direction perpendicular to the mechanism substrate, and the X-type link mechanism on the opposite side is constituted by a toggle mechanism. .

Further, the cassette tape recorder of the present invention is a stopper for horizontally pushing out the mechanism substrate when the tape cassette is taken out by applying the convex portion of the tape cassette to the tip inclined portion of the reel stand, or the tape when the tape cassette is mounted. It is characterized in that means for guiding the cassette tape is added.

Operation The present invention has the following operation with the above-described configuration.

According to the cassette tape recorder of claim 1, the mechanism can be simplified by switching between vertical and horizontal movements with respect to the mechanism substrate during front loading of the tape cassette by engaging the tape cassette and the capstan. it can.

A cassette tape recorder according to claim 2, wherein a member for horizontally inserting into a tape cassette with respect to a mechanism substrate such as a magnetic head and a pinch roller is inserted / removed when the tape cassette is attached / detached, a head peripheral member and a head insertion opening of the tape cassette. By directly applying the inner end of the tape cassette to convert the vertical movement of the tape cassette into the rotational movement of the head block, at the timing of taking in and out the magnetic head, the pinch roller, and the head peripheral member, and
It is also effective in simplifying the mechanism.

In the cassette tape recorder according to the third aspect, the mechanism can be simplified by engaging the capstan with the tape cassette when locking the tape cassette when the tape cassette is mounted in the horizontal direction with respect to the mechanism substrate. .

The cassette tape recorder according to claim 4 is an X-shaped link mechanism provided on both sides for moving the cassette lid in a vertical direction with respect to the mechanism substrate, wherein the lock side of the cassette lid is opened and the opposite side is a toggle mechanism. With this configuration, it is possible to prevent the cassette lid on the anti-lock side from floating when the cassette lid is closed, and press the lock side of the cassette lid to smoothly close the cassette lid.

In the cassette tape recorder according to the fifth aspect, the mechanism can be simplified by applying the cassette tape convex portion to the tip inclined portion of the reel base as a stopper and a guide when loading the tape cassette.

Example Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows an outline of an embodiment of the cassette tape recorder of the present invention. 2, 3, 4, and 5 are sectional views for explaining the operation.

In FIG. 1, reference numeral 21 is a mechanism board having a capstan 23 for driving the tape in the tape cassette 22, a reel stand 24, and the like, and 25 is a mechanism including the mechanism board 21, and a headphone connection jack 26. It is a bottom cabinet. 27 is a cassette lid for storing the tape cassette 22, and a cassette holder 28 is screwed on the inner surface of the cassette lid.
It is fixed by 29. Reference numeral 30 denotes a head block having a magnetic head 31 and a pinch roller 32, which is a mechanism substrate.
It is configured so as to be rotatable around a shaft portion 33a of a hold piece 33 provided at the end portion of 21 and is biased in the mounting direction of the tape cassette 22 by a spring 34. One end 35 of the mechanism substrate 21 is rotatably supported by the shaft 36 at the bent portion 21a of the mechanism substrate 21, and the other end is the end of the cassette holder 28 at the shaft 37.
The first link angle is rotatably supported by. Reference numeral 38 denotes a second link angle rotatably supported by the shaft 39 with respect to the first link angle at the central portion,
This second link angle 38 has a mechanism board at one end.
It is slidably and rotatably supported by a shaft 40 in a long hole 21c provided in a bent portion 21b of the shaft 21, and is slidably and rotatably supported by a shaft 41 in a long hole 28a of a cassette holder 28 at the other end. . This link angle 38 is a spring with a shaft 40
It is urged in the direction of arrow A by 43. Reference numeral 42 is a head block angle fixed to the head block, and is guided by a shaft 44 provided at an end thereof into a hole 35a provided in the link angle 35. 45 is a slide holder for holding the tape cassette 22, and a hole provided in the link angle 35 with the shaft 46.
It is guided by 35b and is urged in the direction of arrow B by a spring 47 held at one end by a link angle 38. 48
Is a leaf spring that biases the tape cassette 22 toward the mechanism, and is fixed to the cassette holder 28. The above structure is provided symmetrically on both sides of the tape cassette 22 with the magnetic head 31 as the center. 49 is a lock piece that engages with the convex portion 28b of the cassette holder 28 when the cassette lid 27 is closed, and 50 is an open button that releases the engagement.

Next, the operation of the above configuration will be described.

FIG. 2 is a sectional view showing a state in which the cassette lid 27 indicated by a chain double-dashed line in FIG. 1 is closed. The magnetic head 31 provided on the head block 30 is arranged at a predetermined position in the opening at the position of the convex portion 22a of the tape cassette 22. The link angle 35 and the link angle 38 are attached to the cassette lid by the spring 43.
27 is always biased in the direction of arrow A, and the lock piece 49 engages with the convex portion 28b of the cassette holder 28 to lock the bias. The dotted line shaft 46 and the slide holder 45 are the positions when the tape cassette 22 is mounted, and the spring force is locked by the cam portion 38a of the link angle 38.

Next, by pressing the open button 50 from the direction of arrow B,
The engagement between the lock piece 49 and the convex portion 28b of the cassette holder 28 is released, and the cassette lid 27 is opened as shown in FIG. 4 via the state shown in FIG.

In FIG. 3, the rotation of the link angle 35 about the shaft 36 causes the slide holder 45 to guide the shaft 46 by the cam portion 38a of the link angle 38 to the slide portion of the hole 35b of the link angle 35, and the cam portion 38a. If is removed, the slide holder 45 is ready to slide in the direction of arrow A. Further, the tape cassette 22 is held by the holder portion 45a of the slide holder 45 and lifted up to the position shown in the figure, and the head block 30 has the magnetic head 31 at the inner end portion of the opening at the position of the convex portion 22a of the tape cassette 22. It is guided along and rotates in the direction of arrow B about the shaft portion 33a of the hold piece 33. When the cassette lid 27 is further opened from this state by the urging force of the spring 43, the cam portion 38a of the link angle 38 disengages from the shaft 46, and the capstan 2
3 is disengaged from the capstan hole 22b of the tape cassette 22, the tape cassette 22 is held by the holder portions 45a and 45b of the slide holder 45, and is slid in the direction of arrow A to move to the fourth position.
As shown in the figure, the tape cassette 22 projects from the tape recorder body (set). Head block in this state
30 is head block angle 42 axis 44 is link angle
It is guided by the holes 35a of 35 and is held in a rotated state as shown in the drawing.

Next, when the tape cassette 22 is taken out in the direction of the arrow A, the slide holder 45 is brought into a two-dot chain line state by the spring 47,
If the cassette lid 27 is closed in the direction of the arrow B without the tape cassette 22, the slide holder 45 will be in the state of the chain double-dashed line in FIG.

Next, a method of mounting the cassette tape 22 will be described. In FIG. 4, when the tape cassette 22 is inserted from the direction of the arrow C along the holding portion 38b of the link angle 38, it is guided by the holder portions 45a and 45b of the two-dot chain line slide holder 45 to become the dotted line state, and further in the direction of the arrow C. When pushed in, the shaft 46 slides along the slide part of the hole 35b of the link angle 35, and the tape cassette 22 is biased in the direction of arrow A by the leaf spring 48 as shown in FIG. 35
It will be disengaged from the slide part of b and locked. At the same time, the capstan 23 engages with the hole 22b at the position of the convex portion 22a of the tape cassette 22, and the tape cassette 22 is held.

Next, when the cassette lid 27 is pushed in the direction of arrow B, the head block 30 held by the rotation of the link angle 35 becomes free as shown in FIG. 3, and the spring 34 shown in FIG. The magnetic head 31 rotates along the inner surface of the opening at the position of the protrusion 22a, and the magnetic head 31 is inserted into the opening at the position of the protrusion 22a of the tape cassette 22. Further, the shaft 46 of the slide holder 45 is again engaged with the cam portion 38a of the link angle 38, and when the cassette lid 27 is further closed, the convex portion 28b of the cassette holder 28 and the lock piece 49 are engaged, and the cassette lid 27 is locked. Then, the state shown in FIG. 2 is obtained.

As described above, by simply pressing the open button 50, the tape cassette 22 projects from the set as shown in FIG. 1, the tape cassette 22 can be easily taken out, and the tape detachment feeling and new feeling are high. Also, since most of the mechanism can be configured in terms of the width of the set, there is little influence on the size of the set, especially on the thickness.

In this embodiment, exactly the same mechanism such as the link angle 35 and the link angle 38 is formed on both sides of the tape cassette 22 of FIG. 1, but the lock mechanism of the cassette lid 27 such as the lock piece 49 is formed. The side with the cassette lid is always 27
Set the position of the shaft 39 so that the spring 43 works in the direction that opens,
By setting the position of the shaft 39 so that the link mechanism on the opposite side constitutes a toggle mechanism having a dead point near the state shown in FIG. 3, when the cassette lid 27 is closed, the lock piece 49 of the cassette lid 27, etc. It becomes possible to close smoothly by pressing near the lock mechanism, and at the same time with the cassette lid 27 closed, on the side without the lock mechanism,
With the toggle mechanism, the cassette lid 27 can be set in the bottom cabinet 25, and the occurrence of floating can be prevented.

In this embodiment, as shown in FIGS. 3 and 5, the hole 22b at the position of the convex portion 22a of the tape cassette 22 and the capstan
The tape cassette 22 is held by engaging with 23.This is the engagement between the hole 22c of the tape cassette 22 and the reference pin for positioning the tape cassette 22 when mounted on the mechanism board. Is also good. Also, the sixth
As shown in the figure, the tape cassette 22 is configured so that the inclined portion 24a of the reel stand 24 is brought into contact with the inclined portion of the convex portion 22a of the tape cassette 22 as a stopper when the tape cassette 22 slides in the direction of arrow A by the spring 47. Arrow B at time
By configuring the end surface of the convex portion of the tape cassette 22 so as to contact the inclined portion 24a of the reel base 24 as a direction guide, a component already formed on the mechanism substrate can be used without a new mechanism. Secure tape cassette 22
It is possible to perform the slide operation of.

Advantageous Effects of Invention The present invention has a mechanism that tends to become complicated when a tape cassette in a small and thin cassette tape recorder is attached / detached from a conventional rotation method to a slide method, that is, a loading method. It can be made simple by using the existing parts and configuration, and can be configured with almost no influence even in miniaturization and thinning.

[Brief description of the drawings]

FIG. 1 is a perspective view of a cassette tape recorder according to an embodiment of the present invention, FIGS. 2 to 6 are sectional views for explaining the operation of the tape recorder, and FIG. 7 is a perspective view of a conventional cassette tape recorder. Is. 21 …… Mechanism board, 22 …… Cassette tape, 23 ……
Capstan, 24 …… reel stand, 25 …… bottom cabinet, 27 …… cassette lid, 28 …… cassette holder, 30…
… Head block, 31… Magnetic head, 35… Link angle, 38… Link angle, 42… Head block angle, 43… Spring, 45… Slide holder, 47…
… Spring, 48… Leaf spring, 49… Lock piece, 50… Open button.

Claims (5)

(57) [Claims] 1. A mechanism substrate provided with a mechanism having a capstan and a reel stand for driving a tape accommodated in a tape cassette, and a tape cassette accommodated in a cassette lid is vertically transferred to the mechanism substrate. An elevating means for supporting the cassette lid, and a head block having a magnetic head and a pinch roller rotatably supported with respect to the mechanism substrate and biased by a capstan on the mechanism substrate and a reel stand side. A horizontal transfer means for transferring the tape cassette housed in the cassette lid in the horizontal direction with respect to the mechanism substrate, and a capstan or a reference pin provided on the mechanism substrate when the tape cassette is vertically moved with respect to the mechanism substrate, The cassette provided on the tape cassette Cassette tape recorder, characterized in that it comprises means for a stopper for movement in the horizontal direction of said tape cassette by engaging the capstan insertion holes or reference pin insertion holes. 2. A mechanism substrate of a tape cassette by aligning a surface of the magnetic head peripheral member, which is inserted from the direction of the magnetic head when the tape cassette is mounted, on the mechanism substrate side with an inner end surface of a head insertion opening provided in the cassette. 2. The tape recorder according to claim 1, further comprising means for controlling the rotation of the head block so that the head peripheral member can be moved in and out of the head insertion opening of the tape cassette by a vertical movement with respect to. 3. When the tape cassette is pushed in against the urging force that pushes out horizontally against the mechanism substrate, the head insertion opening of the tape cassette is brought closer to the mechanism substrate side and the capstan is inserted into the capstan insertion hole of the tape cassette. 2. The cassette tape recorder according to claim 1, further comprising means for locking the urging force so that the tape cassette does not come off by engaging with each other. 4. Elevating means is provided on both sides of the cassette lid, and is constituted by an X-shaped link mechanism for moving the tape cassette and the cassette lid in a direction perpendicular to the mechanism substrate, and the cassette lid locking means is provided. 2. The cassette recorder according to claim 1, wherein the X-type link mechanism on the side is biased in a direction in which the cassette lid is opened, that is, a direction perpendicular to the mechanism substrate, and the X-type link mechanism on the opposite side is a toggle mechanism. 5. A stopper for resisting a horizontal pushing force against a mechanism substrate at the time of taking out the tape cassette by applying a convex portion into which the head of the tape cassette, a pinch roller, etc. are inserted to the tip inclined portion of the reel stand, or 2. The cassette recorder according to claim 1, further comprising means for guiding the tape cassette when the tape cassette is mounted.