JPS6131542B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cassette attachment/detachment device for a tape recorder.

Conventionally, in a cassette type tape recorder, in order to make the tape deck body thinner and to make it easier to attach and detach the cassette, the first position protrudes from the front panel of the tape deck body and can receive the cassette, and the cassette is placed on a reel inside the tape deck body. A tape recorder is proposed that includes a cassette mounting body that can be slid in a direction substantially perpendicular to the front panel surface, that is, in a horizontal direction, and that can be adapted to a second position in which it can be mounted on a shaft. has been done.

However, in such conventional tape recorders of this type, various mechanical motion transmission means or electric drive means using a motor are used as means for sliding the cassette mounting body.
These methods have disadvantages in that they are complicated and their existence limits the ability to make the tape deck body thinner.

Accordingly, the present invention provides a cassette holder with a first inclined position in which the cassette can be obliquely inserted or removed, and a second inclined position in the opposite direction to the first inclined position in which the cassette can be mounted on the reel shaft. 2 inclined positions, and the first inclined position.
and a second angled position to facilitate insertion or removal of the cassette, and an extended position corresponding to the first angled position of the cassette holder. a guide member having a pushed-in position corresponding to the second inclined position and capable of horizontal sliding movement between the projected position and the pushed-in position; and a horizontal sliding movement of the guide member. converting the motion into a rotational motion and causing a horizontal movement of the cassette holder at a speed higher than the pushing-in speed of the guide member, substantially simultaneously with the guide member being pushed into the pushed-in position; By providing a motion transmitting means that allows the cassette holder to take the second inclined position, it is possible to speed up the insertion of the cassette onto the reel shaft, and also to reduce the thickness of the tape deck body. An embodiment of the present invention will be described with reference to the drawings.

First, referring to FIGS. 1A and 1B, essential parts of a tape recorder equipped with a cassette attaching/detaching device according to the present invention are shown in a plan view and a partially sectional side view. In the figure, a housing made up of a front panel 2, a top plate 3, and a bottom plate 4 is designated by the reference numeral 1 as a whole, and a tape recorder main body 5 is disposed within the housing 1. This tape recorder main body 5 has a chassis 6 which is arranged in a housing 1 and is fixed to the bottom plate 4 and is inclined downward in the front. A sub-chassis 11 is provided with reel shafts 7, 7', a capstan 8, etc., and is provided with a magnetic head 9 and a pinch roller 10 so as to be slidable along the upper surface of the chassis 6. When the cassette 12 is installed from above the reel shafts 7, 7', the sub-chassis 11 is slid rearward (to the left in the figure) by operating the recording/playback operating lever 13 protruding from the front panel 2. By moving the magnetic head 9 to the cassette 12.
a capstan 8 which is in contact with the magnetic tape therein and has a pinch roller 10 inserted into a cassette 12;
Recording and playback operations are performed by sandwiching and connecting a magnetic tape to the magnetic tape.

In such a tape recorder main body 5, as a means for mounting the cassette 12 on the reel shafts 7, 7' and removing it therefrom, a cassette mounting body 1 for mounting and transporting the cassette 12 is provided.
4, and a pushable guide member 15 for guiding the cassette mounting body 14 from outside the housing 1 toward the tape recorder main body 5 side or vice versa.
and is provided.

The cassette carrier 14, as shown in its entirety in perspective view in FIG.
and a cassette holder 17 pivotally attached to the transfer member 16. Transfer member 16
is formed of a thin metal plate, and includes a horizontal main plate portion 18, and side edge portions 19 and 19' formed by bending downward from both sides of the main plate portion 18.
It consists of beak-shaped parts 20 and 20' that project forward from the side edges 19 and 19', respectively, and the cassette mounting body 14 is provided at the tips of the beak-shaped parts 20 and 20'.
Engagement protrusions 20a, 20a' are formed by being bent inward so as to be able to engage from both sides with the front end surface 12a of the cassette 12 placed thereon. Side edge 1
Guide rollers 21, 21' having axes perpendicular to the plate surfaces of the side edges 19, 19' are provided at the rear ends of the side edges 19, 19' and protrude outward. Beak-shaped parts 20, 2 of parts 19, 19'
Guide rollers 22, 22' are similarly provided near the position where they are connected to the roller 0'. Main plate part 1
8 is formed with an engaging slot 23 extending perpendicularly to the side edges 19, 19' for connecting the cassette mounting body 14 and a motion transmitting means 46 to be described later. The cassette holder 17 is a housing made of, for example, a synthetic resin material, and has a shape and internal dimensions that allow the cassette 12 to be inserted and held from the front, and side edges 19, 19' of the transfer member 16.
and external dimensions that can be stored inside the beak-shaped parts 20, 20', and has a U-shaped upper plate part 2 when viewed from the top.
4, the bottom plate part 25, the back plate part 26, and the side plate part 2
7, 27', and the bottom plate part 25
Projecting pieces 25a and 25a' projecting forward are provided on the cassette holder 17 to guide the insertion of the cassette 12 into the cassette holder 17 and to support the bottom surface of the inserted cassette 12. The cassette holder 17 having such a structure is pivotally supported on the transfer member 16 by pins 28, 28' at approximately the center of the lower edges of the side plate parts 27, 27', and, for example, one pin 28' The protrusions 25a and 25a' are biased in the direction of downward rotation (clockwise in FIG. 1B) by a coil spring (not shown) provided at the position of the cassette holder 17. When the is in a horizontal state, its upper plate part 24
The upper rear surface of the main plate 18 of the transfer member 16 is in contact with the lower front surface of the main plate 18 of the transfer member 16, so that the pivoting of the cassette holder 17 is controlled by the protrusions 25a, 25.
It is limited between the horizontal position of a′ and a position above it. A cassette holder 17 is mounted on the upper plate portion 24.
Protrusions 29, 29' are provided above the pins 28, 28' that pivotally support the
Numerals 9 and 29' are for engaging engaging elements 45 and 45', which will be described later, provided on the front panel 2 of the housing 1 to pivot the cassette holder 17.

The guide member 15 includes a front frame portion 32 which is a frame-shaped body that can be made of, for example, a synthetic resin material and has an operating plate portion 31 that can be loosely fitted into a window 30 provided on the front panel 2 of the housing 1; Side frame parts 33, 33' extending rearward from both sides of the frame part 32;
33' and a rear frame portion 34 connecting the rear ends thereof. Front surface 31 of operation plate 31
Reference character a is an operating surface parallel to the front surface 2a of the front panel 2, through which the guide member 15 is pushed. The rear part of the side frame parts 33, 33' has approximately the entire length.
Projecting edges 35, 35' are formed extending outward over two-thirds of the cassette mounting body 14, and guide rollers 21, 21, Guide grooves 36, 36' for guiding 21' are formed along the projecting edges 35, 35' up to a position where they connect to the rear frame part 34. The guide member 15 includes two pairs of guide rollers 37, 37' and 38, which are provided in the housing 1 and have vertical axes.
38', the operating plate 31
are disposed on the housing 1 so as to be able to slide in the horizontal direction freely from the window 30 of the front panel 2, and the guide rollers 37, 37' at the front position move side frame parts 33,
The guide rollers 38, 38' at the rear position are attached to the edges 33a, 33a' of the front part of the protruding edge 33'.
The edges 35a and 35a' of the ends 5 and 35' are engaged and connected, respectively. Coil springs 39, 39' are installed between the guide member 15 and the front panel 2, and the coil springs 39, 39' cause the guide member 15 to have its operation plate 31 on the front panel 2. The front end surfaces 35b, 35b' of the projecting edges 35, 35' collide with the locking pieces 40, 40' provided on the rear surface 2b of the front panel 2. The operating plate portion 31 is stopped at a protruding position in which the operating plate portion 31 is brought into contact with the front surface 2a of the front panel 2. Therefore, when the guide member 15 is pushed in from this protruding position by pressing the front surface 31a of the operation plate 31, the guide member 15 can be
It is arranged so that it can be stopped also in the retracted position where the parts a are aligned on the same plane, and an abutment means for this purpose is provided. This collision means, for example, connects the front end surfaces 42a, 42a' of the guide rails 42, 42', which will be described later, to the back surface 3 of the operating plate section 31.
1b.

Such a guide member 15
4 is engaged with the inside thereof to perform a relative sliding movement, but the engagement is as follows:
This is achieved by the guide rollers 21, 21' being engaged in the guide grooves 36, 36', and the upper surfaces of the guide grooves 36, 36' being covered by cover plates 41, 41'. Guide rollers 21, 21' are fitted in guide grooves 36, 36'. The other guide rollers 22, 22' are configured to roll on guide rails 42, 42' provided on the bottom plate 4 of the housing 1 along the movement path of the transfer member 16, and are configured to roll on guide rails 42, 42' provided on the bottom plate 4 of the housing 1. The mounting body 14 has these four guide rollers 21, 21',
22, 22' can be slid horizontally. The rear ends of the guide rails 42, 42' are used to place the cassette when the cassette mounting body 14 is slid and reaches the rear end of the guide rollers 21, 21' guide grooves 36, 36'. The inclined portions 42b, 42b are steeply inclined downward so that the body 14 can be pivoted downward about the guide rollers 21, 21' to attach the cassette 12 to the reel shafts 7, 7'. ', and the guide rollers 22, 2
2' can be slid down. The cassette mounting body 14 is pivoted downward on the chassis 6, and the projecting pieces 25a, 2 of the cassette holder 17 are mounted on the chassis 6.
Projections 44, 44' are provided at predetermined positions for support on the bottom surface of 5a'. Further, on the chassis 6, there is a cassette mounting body 1 which is pivoted downward as described above and has an inclined position where the cassette 12 can be mounted on the reel shafts 7, 7'.
Push-up member 4 for pushing up 4 to a horizontal position
3 is pivotably provided. This push-up member 43 can be operated by an eject button (not shown) provided on the front panel 2 of the housing 1. The protrusions 29 and 2 of the cassette holder 17 mentioned above are located inside the upper edge of the window 30 provided on the front panel 2.
Engagement elements 45, 45' that can be engaged with 9' are vertically provided,
The cassette mounting body 14 and the guide member 15
0 and protrudes from the front surface 2a of the front panel 2, the protrusions 29, 2 of the cassette holder 17
9' engages with the engaging members 45, 45', and the cassette holder 17 is pivoted about the pins 28, 28'. Such pivoting means for the cassette holder 17 may also be constructed by providing the guide member 15 with an inclined portion that engages with the bottom plate portion 25 of the cassette holder 17 to pivot the cassette holder 17. .

The cassette holder 14 and the guide member 15 are connected by interlocking transmission means generally indicated by the reference numeral 46. The motion transmitting means 46 can be made of a pair of sheet metal members engaged for relative sliding movement only in the longitudinal direction, as shown in an illustrative perspective view in FIG. arm 47
and 48, one arm 47
has a circular hole 49 at one end and an engagement pin 5 at the other end.
0, and a groove groove 51 extending in the longitudinal direction of the arm 47 in the middle part, and the other arm 48 has a circular hole 52 in one end and a locking hole 52 extending downward in the other end. It has a joint rod 53 and a slot 54 extending in the longitudinal direction of the arm 48 in the middle part. Housing 1
A support member 55 is fixedly provided on the side of the movement path of the guide member 15, and the guide member 15
One of the cover plates 41' extends over the movement path of the cassette mounting body 14 in the form of an eave, and supports the support member 56.
is integrally formed, and an engagement/pivot pin 5 is attached thereto.
7 has been planted. One end of the arm 47 is rotatably supported on the support member 55 by loosely fitting the pivot pin 58 into the circular hole 49, and the engaging pivot pin 57 on the guide member 15 is attached to the arm 47. The arm 48 is slidably and loosely fitted into the slot 51 of the arm 47, and the arm 48 is superimposed on it, and the pin 57 is loosely fitted into the circular hole 52 at one end of the arm 48. It is rotatably supported. Also, the engagement pin 5 at the other end of the arm 47
0 is slidably and loosely fitted into the slot 54 of the arm 48, and E-rings 59 are engaged with the tips of the pins 57 and 50, so that the arms 47 and 48 are opposed to each other only in the longitudinal direction. are slidably engaged. The engaging rod 53 at the other end of the arm 48 is inserted into the slot 23 on the cassette mounting body 14 from above, and is slidable in both the longitudinal direction of the slot 23 and the extending direction of the engaging rod 53. is connected to the cassette mounting body 14. pin 58,5
7, 50 and rod 53 are substantially colinearly aligned. As mentioned above, between the mutually overlapping portions of the arms 47 and 48, which are partially overlapping, there is provided a damper effect by providing resistance to the relative sliding movement of both the arms 47 and 48. A sticky substance, such as a sticky grease, may be present.

The structure of an example of the cassette attaching/detaching device for a tape recorder according to the present invention has been clarified above.
Next, the operation will be explained with reference to FIGS. 4 and 5.

First, as shown in FIG.
5, the spring biasing force by the coil springs 39, 39' mounted between the guide member 15 and the front panel 2, and the front end surfaces 35b, 35b' of the projecting edges 35, 35' of the guide member 15 are applied to the front surface. By being able to collide with the locking pieces 40, 40' of the rear surface 2b of the panel 2, the operation plate 31 is placed in a protruding position protruding forward from the front plate 2, allowing the cassette to be mounted. The mounting body 14 has a beak-shaped portion 2 of its transfer member 16.
The protrusions 20a and 20a' at the tips of 0 and 20' are located close to the back surface 31b of the operation plate 31. The protrusions 29, 29' on the top plate 24 of the cassette holder 17 engage with the engaging elements 45, 45' vertically provided inside the upper edge of the window 30 of the front panel 2, and the coil springs (not shown) The first cassette 12 is pivoted about the pins 28, 28' against the biasing force of the spring 2) so that the projecting pieces 25a, 25a' are above the horizontal position, and the cassette 12 can be inserted diagonally from the front. It is forced to take an inclined position.

In such a state, () insert the cassette 12 into the cassette holder 17 diagonally from the front and then close the cassette holder 17.
After holding the operating plate portion 31 of the guide member 15, the front surface 31a is fixed to the coil springs 39, 39'.
When the guide member 15 is slid by pressing against the biasing force of the spring, the engagement/pivot pin 57 provided on the guide member 15 moves in a straight line, thus causing the motion transmitting means 46 to move. The constituting arm 47 is horizontally rotated about the pivot pin 58 while sliding the pin 57 in the direction toward the pin 58 within the slot 51, and such rotational movement of the arm 47 is caused by the rotation of the arm 47. The movement is transmitted to the arm 48 by the engagement pin 50 at the tip, and the arm 48 is rotated horizontally about the pin 57 while sliding the pin 50 in the slot 54, and this movement is transferred to the tip of the arm 48. The engaging rod 53, which is vertically disposed and is engaged in the slot 23 on the cassette mounting body 14, is connected to the cassette mounting body 1.
4, the cassette mounting body 14 slides the rod 53 in the horizontal direction within the slot 23, and the guide member 15 and the guide rail 4.
2, 42' and is caused to slide in the horizontal direction at a speed higher than the pushing speed of the guide member 15. The cassette holder 17, which was initially placed in the first inclined position as shown in FIG. Front panel 2
The upper engagers 45, 45' are gradually disengaged and pivoted to a horizontal position by the biasing force of a coil spring (not shown) and the weight of the cassette 12. It is held by the cassette holder 17 and moved horizontally together with the cassette mounting body 14 to reach the position shown in FIG. Arms 47 and 48 are
its extension direction, i.e. pins 58, 57, 50
The direction in which the rods 53 are connected is approximately perpendicular to the moving direction of the cassette mounting body 14, and the distance between the pins 58 and the rods 53 is compared to that shown in FIG. is shortened.

() When the guide member 15 is further pressed and slid from the state shown in FIG.
2 and 42', the guide member 15 is further slid in the horizontal direction via the motion transmitting means 46 at a speed higher than the pushing speed of the guide member 15, so that the front surface 31a of the operating plate portion 31 is the front surface of the guide member 15. Substantially at the same time as it is pushed into the pushed-in position where it is flush with the front surface 2a of the panel 2, the cassette carrier 14 reaches the end of its horizontal sliding movement and the guide rollers 22, 2
2' can slide down on the sloped portions 42b, 42b' at the ends of the guide rails 42, 42'. The motion transmitting means 46 are brought into the position shown in FIG. 5, and the distance between the pin 58 and the rod 53 is extended again.

() Substantially at the same time that the guide member 15 is pushed to the push-in position, the guide rollers 22, 22' provided on the cassette mounting body 14 move the inclined portions 42b, 42 of the guide rails 42, 42'.
b', and the weight of the cassette mounting body 14 and the cassette 12 causes it to pivot downward about the guide rollers 21, 21' at the rear end, as shown in FIG. The bottom surfaces of the projections 25a, 25a' of the cassette holder 17 are supported by the projections 44, 44' provided on the chassis 6, and the cassette holder 17 is
The top plate part 24 and the bottom plate part 25 are tilted in a direction opposite to the tilted position shown in FIG. A second tilted position is assumed. According to this, cassette 1
2 is attached to the reel shafts 7, 7' from above. In this case, an engaging rod 5 is installed vertically at the tip of an arm 48 constituting the motion transmitting means 46.
3 and the cassette mounting body 14 are engaged with each other through the slot 23.
An engaging rod 53 having a predetermined length inside
is loosely fitted, so that the slot 23 is connected to the rod 5.
3 and still maintain. Furthermore, in FIG. 5B, the guide roller 2
1 and the guide roller 22, the angle at the upper left slope of the inclined portion 42b of the guide rail 42 is made smaller than a right angle, and the guide roller 21 is connected to the coil springs 39, 39'.
The guide rollers 22, 22' collide with the rear frame portion 34 of the guide member 15, which is spring-biased to the right in the figure, and are pressed to the right. They are pushed downward along the respective lines. Therefore, the cassette mounting body 14 has guide rollers 22,
The cassette 12 is locked in the position where it is attached to the reel shafts 7, 7' due to the fact that the cassette 22' is pushed down in this way, and the weight of the cassette mounting body 14 and the weight of the cassette 12. Accordingly, the guide member 15 is also locked in the pushed-in position. With respect to the cassette 12 mounted on the reel shafts 7, 7', the magnetic head 9 comes into contact with the magnetic tape inside the cassette 12 by sliding the sub-chassis 11 by operating the recording/playback operating lever 13. A pinch roller 10 is attached to the capstan 8 which is made as shown in FIG.
is forced to hold the magnetic tape and make a recording.
Since the reproduction operation is the same as in a conventional tape recorder, detailed explanation will be omitted.

() To take out the cassette 12 mounted on the reel shafts 7, 7' as described above, press the eject button (not shown) provided on the front panel 2 to push it up. Since the member 43 is pivoted upward and comes into contact with the bottom surface of the bottom plate portion 25 of the cassette holder 17 and pushes it upward, the cassette mounting body 14
is pivoted upward around the guide rollers 21, 21' and returns to a horizontal position, reaching a position where horizontal sliding movement is possible, so that the coil spring 39, which had been stretched by the guide member 15, ，
The cassette mounting body 14 is slid forward to the protruding position where it is protruded from the front panel 2 by the biasing force of the spring 39', and the cassette mounting body 14 is moved by the motion transmitting means 46 at a rate faster than the return sliding speed of the guide member 15. The cassette holder 17 is slid horizontally in the two directions of the front panel at a high speed, and when the cassette holder 17 passes through the window 30 of the front panel 2 during the sliding movement, the cassette holder 17 is moved horizontally in two directions. The protrusions 29, 29' are the engagers 45, 4
5', the cassette holder 17 is pivoted about the pins 28, 28',
When the guide member 15 is returned to the protruding position shown in FIG. 1, the cassette holder 17 can assume the first tilted position shown in FIG. Therefore, cassette 1
2 can be taken out from the cassette holder 17.

The above has been a description of the operation of the cassette attaching/detaching device according to the present invention when loading or unloading the cassette 12, and now the operation of the motion transmitting means 46 will be explained in more detail with reference to FIG.

In FIG. 6, arms 47 and 48, which are engaged with each other such that relative displacement is allowed only in the longitudinal direction, are assumed to be in the position shown in FIG. 1, with the proximal end of arm 47 The position of the pin 58 on the casing 1 which is pivotally supported is O, and the position of the pin 57 on the guide member 15 which is pivotally supported the base end of the arm 48 is O.
a ₁ , the position of the pin 50 at the tip of the arm 47 is b ₁ , and the position of the rod 53 at the tip of the arm 48 is c ₁ . pin 5
7 is a point on the straight line A as the guide member 15 slides.
a ₁ , a ₂ , a ₃ , ... a ₇ (the position of point a ₇ is the position of pin 57 shown in Fig. 5) is connected to perform linear movement, but the position of point a ₄ is Let it be the intersection of the perpendicular line O-O' drawn from the point O to the straight line A and the straight line A.
As the pin 57 moves, the arm 47 moves into its slot 5.
1, the pin 57 is rotated around point O while sliding in the direction toward pin 58 up to point _A4 and in the opposite direction thereafter, and the pin 50 at the tip is rotated around point O. Points a ₁ , a ₂ , a ₃ , . . . on the curve B that forms part of the arc whose radius is the line segment Ob ₁
The arm 48 moves by connecting the points b ₁ , b ₂ , b ₃ , ... b ₇ corresponding to _a 7, and the arm 48 has a pin 50 in its slot 54.
is slid in the direction toward the rod 53 up to point _b4 , and thereafter in the opposite direction, and the rod 53 is slid in the slot 23 on the cassette mounting body 14 on the curve C. Similarly, the corresponding points c ₁ , c ₂ ,
c ₃ ,...c ₇ are tied together and moved to the cassette mounting body 14.
is caused to slide linearly along a straight line D drawn parallel to straight line A from point _c1 . Therefore, the motion transmitting means 46 converts the horizontal sliding movement of the guide member 15 into a rotational movement, and the rotational movement causes the horizontal sliding movement of the cassette mounting body 14. The curve C can be drawn by the line segment a ₁ c ₁ = a ₂ c ₂ = a ₃ c ₃ . . . = a ₇ c ₇ = the distance between the pin 57 and the rod 53. If the intersection of the straight line D and the straight line O-O' is P, then when the guide member 15 moves between the line segments a ₁ a ₄ , the cassette mounting body 14 moves between the line segments c ₁ P
Therefore, the cassette mounting body 14
It is clear that the moving speed of the mounting body 14 is higher than the moving speed of the guide member 15, and the moving speed of the mounting body 14 is the same as that of the triangle Oa ₄ a ₁ and the triangle OPc ₁
Since these are similar, it can be expressed as OP/Oa ₄ times the moving speed of the guide member 15. Note that areas E, F, and G indicate the movement trajectories of the slots 51, 54, and 23, respectively, and the points a ₁ , a ₂ , a ₃ , ... a ₇ ;
b ₁ , b ₂ , b ₃ . . . b ₇ and c ₁ , c _{2 ,} c ₃ , . The lengths of the slots 51, 54 and 23 can be selected taking into account the following. It will be readily understood that when the guide member 15 returns from the position shown in FIG. 5 to the position shown in FIG. 1, the operations described above are performed in the opposite direction.

According to the cassette attachment/detachment device according to the invention, it has a first inclined position in which the cassette 12 can be inserted or removed obliquely,
and a second inclined position inclined in a direction opposite to the first inclined position, which is attachable to the first inclined position, and is adapted to be moved substantially horizontally between the first and second inclined positions. cassette holder 17
and a protruding position corresponding to the first inclined position and a pushed-in position corresponding to the second inclined position, and horizontal sliding movement between the protruding position and the pushing-in position. The horizontal sliding movement of the guiding member 15 is converted into a rotational movement, and the horizontal movement of the cassette holder 17 is made faster than the pushing speed of the guiding member 15 by the rotational movement. motion transmitting means 46 adapted to cause the cassette holder 17 to adopt said second tilted position substantially at the same time as the generating guide member 15 is pushed into the pushed-in position even at high speeds. As a result, the cassette 12 can be inserted into the cassette holder 17 diagonally from above, making it extremely easy to insert or remove the cassette 12. Moreover, after inserting the cassette 12 into the cassette holder 17 in the first inclined position, the guide member 15 from its protruding position, the cassette 12 is transferred by the cassette holder 17 and placed in the cassette holder 1.
By taking the second inclined position, the cassette holder 17 is attached to the reel shafts 7, 7', and by simply pressing the eject button from such a mounting position, the cassette holder 17 returns to the first inclined position. The cassette 12 can be easily taken out. Further, horizontal sliding of the cassette holder 17 from the first inclined position to the second inclined position is caused by the guide member 15.
a movement transmitting means 46 for converting the movement into a horizontal sliding movement;
Since the pushing speed is higher than the pushing speed of the guide member 15, the reel shaft 7 of the cassette 12,
7' can be quickly, easily and reliably mounted, and the pushing distance of the guide member 15 can be shortened. Another great feature is that the structure of the motion transmitting means 46 is extremely simple.

Furthermore, this configuration also has the effect of making the tape deck body thinner and the front panel 2 simpler.

Furthermore, if an adhesive material is interposed between the pair of arms 47 and 48 constituting the motion transmission means 46 to provide a desired resistance against relative sliding displacement of the arms 47 and 48, the damper effect can be obtained. This has the practical benefit of making the transmission of motion extremely smooth.

[Brief explanation of the drawing]

1A and 1B are a plan view and a partially sectional side view of the main parts of a tape recorder equipped with a cassette attaching/detaching device according to the present invention, FIG. 2 is a perspective view showing the cassette mounting body thereof, and FIG. are exploded perspective views showing the motion transmission means, Figures 4A and B, and Figure 5A.
and B are a plan view and a partially sectional side view showing the cassette mounting operation corresponding to FIGS. 1A and B, respectively, and FIG. 6 is a diagram illustrating the operation of the motion transmitting means. In the figure, 1 is the housing, 2 is the front panel, 5 is the tape recorder body, 6 is the chassis, 7, 7' are the reel shafts, 9 is the magnetic head, 11 is the sub-chassis, 12
14 is a cassette, 14 is a cassette mounting body, 15 is a guide member, 16 is a transfer member, 17 is a cassette holder, 23, 51, 54 are engagement slots, 29, 2
9' is a protrusion, 46 is a motion transmission means, 47, 48 are arms, 50 is an engagement pin, 53 is an engagement rod, 5
Reference numeral 7 indicates an engagement/pivot pin, and 58 indicates a pivot pin.

Claims (1)

[Claims] 1. A protruding position protruding from the front panel of the casing;
A guide member provided on the casing so as to be capable of linear movement in the horizontal direction between this protruding position and a pushed-in position pushed toward the casing; The reel is provided to be movable linearly in a direction parallel to the guide member, and takes a first position in which the cassette can be received or removed at the protruding position of the guide member, and the cassette is mounted on the reel shaft at the push-in position of the guide member. A cassette attachment/detachment device for a tape recorder comprising a cassette mounting body adapted to assume a second tilted position, the linear motion of the guide member being converted into a rotational motion;
This rotational movement causes a linear movement of the cassette mounting body at a speed higher than the push-in speed of the guide member, so that the cassette is moved substantially at the same time as the guide member is pushed into the push-in position. A motion transmitting means is provided which operates to bring the mounting body to the second position, the motion transmitting means being engaged with each other such that relative sliding displacement only in the longitudinal direction is permitted. and a pair of arms connecting the housing, the guide member, and the cassette mounting body, and one of the pair of arms is rotatably pivoted to the housing. A cassette attaching/detaching device for a tape recorder, characterized in that: 2. The device according to claim 1, wherein an adhesive substance is interposed between the pair of arms to provide a desired resistance to relative sliding displacement of the pair of arms. Cassette attachment/detachment device.