JPH0452876Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention is for recording and playing back magnetic tape stored in the cassette half of R-DAT (Rotary Digital Audio Tape Recorder), VTR, etc. by pulling it out of the cassette half. The present invention relates to an improvement in a cassette half loading mechanism for a cassette tape recorder device.

[Prior Art] Various loading mechanisms have been devised and commercialized in order to place this type of conventional cassette half at a predetermined position within a cassette tape recorder. An example of the above loading mechanism is VTR
As is often used in
There is a so-called slot-in mechanism that moves the cassette holder horizontally and vertically by inserting the cassette half into a slot portion having a cassette holder, and places the cassette half at a predetermined position.

[Problems that the invention aims to solve] On the other hand, in terms of inserting and removing the cassette half, it is possible to automatically insert and remove the cassette half by simply placing the recording medium on the tray, as is used in CD (compact disc) players. It is desirable to have a mechanism that allows predetermined playback and recording operations to be performed, but in the above-mentioned cassette tape recorder, especially in the cassette half for R-DAT, there is a mechanism that allows the user to slide the protective cover on the bottom of the cassette half and insert the magnetic tape into the cassette. Since operations such as opening the lid are required to pull the cassette half out of the half, it is difficult to perform the above operation while the cassette half is placed on a tray such as a CD player, making it difficult to employ this mounting mechanism. It was hot.

[Means for Solving the Problem] This invention includes a tray having a cassette half-mounting section, a cassette holder attached to the tray so as to be movable only in the vertical direction, and supporting the tray by allowing horizontal movement. a supporting side plate, a roller rotatably attached to the supporting side plate and abutting against the surface of the cassette half to be placed on the tray to transfer the cassette half in the rotational direction; and the cassette placed on the tray. The cassette tape recorder device is provided with a convex portion that abuts the rear end of the cassette half, and a concave portion is formed in the cassette holder to accommodate the leading edge portion of the cassette half tilted forward by the convex portion.

[Operation] By making the amount by which the cassette half is fed by the rotation of the roller larger than the amount of movement of the tray, the cassette half is transferred from the tray to the cassette holder at the same time as the tray is stored, and a predetermined operation is performed in the cassette holder.

[Example] Hereinafter, an example of this invention shown in the drawings will be described in detail.

In FIG. 1, reference numeral 1 denotes a cassette holder, and as shown in FIG. 2a, a cassette half holder 11 has a hole 12 through which a reel that is fitted and driven by the hub of the cassette half 5 shown in FIG. 3 is inserted. , a lock pin 52 of a protective cover 51 slidably attached to the lower surface of the cassette half 5 shown in FIG.
Projection 1 for pressing to release the locked state
3. The front edge of the protective cover 51 is locked and the protective cover 51 is moved in accordance with the movement of the cassette half 5.
The locking pin 14 and the hole 12 for sliding the
Recesses 18 are formed on both sides of each.
Further, 15 is a spring body that presses the cassette half 5 toward the receiving table 11 and holds it in the holder 1, 17 is a slider portion, and 16 is a drive pin erected on the outer surface of the slider portion 17.

As shown in FIG. 2b, 2 is a tray having a cassette half mounting portion 21, and both ends 22 are formed lower than the cassette half mounting surface 21, making it easy to pick up the cassette half. Further, as shown in FIG. 2d, a convex portion 28 is formed on the front edge of the cassette half mounting surface 21 of the tray, and the convex portion 28 allows the cassette half 5 to be held at its rear end in a lifted state. It will be placed. Reference numeral 23 denotes a cassette holder support part which is an extension of the both ends 22, and includes a recess 24 that locks the slider part 17 of the cassette holder 1 and allows the cassette holder 1 to slide only in the vertical direction. A slit 25 is formed into which the drive pin 16 is inserted. By engaging the slider portion 17 of the cassette holder 1 with the recess 24 of the support portion, the cassette holder 1 is attached to the tray 2 so as to be slidable in the vertical direction. or.
A convex portion 2 is provided on each upper and lower edge of the outer surface of the tray 2.
7a and 27b are formed.

4 is a support side plate that slidably supports the tray 2, as shown in FIG.
27b is slidably supported by loosely fitting. Further, each of the support side plates 4 is formed with a substantially inverted L-shaped slit 44 through which the drive pin 16 is inserted and moved. Furthermore, 6 is a drive lever for moving the drive pin 16 of the cassette holder, and a slit 61 is formed through which the drive pin 16 is inserted.
A worm 81, a worm wheel 82 that meshes with the worm 81, a first gear 83 coaxially fixed with the worm wheel 82, and a first gear 83 that meshes with the first gear 83. The third gear of the transmission mechanism includes a second gear 84 and a third gear 85 coaxially fixed to the second gear 84.
The driving force of the motor 7 is transmitted by meshing the gear 85 with the gear portion 62 formed on the drive lever. Further, a first pulley 91 is attached to the other end of the rotation shaft 86 of the second gear 84, and a second pulley 92 is disposed via the first pulley 91 and the belt 10. 1st to
A roller 3a and a second roller 3b are installed at appropriate intervals. Then, the rollers 3a and 3b come into contact with the upper surface of the cassette half 5 placed on the tray 2, and
The rotation speed is set so that the tray 2 is moved by an amount approximately twice that of the tray 2. Furthermore, the drive pin 16 passes through the slit 25 of the tray and the inverted L-shaped slit 44 of the support side plate, and engages with the slit 61 of the drive lever.

Regarding the operation of the configuration of this embodiment, Figures 4a to 4
Referring to Figure d, Figure 4a shows tray 2.
With the cassette half mounting portion 21 completely protruding from the front panel of the device (indicated by the dashed line 8 in the figure), the cassette half 5 can be placed on or pulled out from the mounting portion. Then, the cassette half 5 is placed so that its rear end is disposed in the convex portion 28 and its front edge is disposed in the concave portion 18, that is, in a state where the cassette half 5 is tilted forward.

Next, in response to the operation of a play button (not shown), etc., the drive lever 6 is rotated clockwise in the figure by the transmission mechanism, and the second gear 84 and the first pulley 9 are rotated.
1. Rollers 3a, 3b via second pulley 92
rotates counterclockwise in the figure. As a result, the drive pin 16 engaged with the drive lever 6 moves to the right in the figure, so that the cassette holder 1 to which the drive pin 16 is fixed and the cassette holder 1 are attached so as to be movable only in the vertical direction. Tray 2 moves similarly. During the above movement, the upper surface of the cassette half 5 is placed on the roller 3.
When it comes into contact with a and 3b, it is slidably driven by the rotation of the rollers, so that the cassette half 5 is transferred by an amount approximately twice that of the tray 2.
The cassette holder is transferred from the tray 2 toward the cassette holder 1. In this state, as shown in FIG. 5a, the protrusion 13 formed on the cassette half holder 11 does not engage with the locking pin 52 of the cassette half, and the locking pin 14 is not in contact with the protective cover 51. is not released. Furthermore, drive lever 6
When the tray 2 is rotated and the tray 2 is completely accommodated in the device, the cassette half 5 is completely transferred to the cassette holder 1 as shown in FIG. 4c. That is, each member is designed and arranged so that when the cassette half 5 achieves twice the required movement of the tray 2, it is completely accommodated in the cassette holder 1. In this state, as shown in Fig. 5b, the protrusion 13 formed on the cassette half holder 11 comes into contact with the lock pin 52 of the cassette half to release the locked state.
The locking pin 14 also comes into contact with the protective cover 51, and opens the protective cover 51 as the cassette half 5 is moved to the right. Further, when the drive lever 6 rotates, the drive pin 16 of the cassette holder moves along the vertical portion of the L-shaped slit 44, and as a result, only the cassette holder 1 moves downward while the tray 2 remains stationary. Lower to the specified position as shown in the figure. In this state, the drive reel passes through the hole 12 in the pedestal and the hole 53 in the protective cover and is fitted to the hub in the cassette half 5, making the magnetic tape ready for transport. Further, although not shown, an appropriate lid opening means may be employed, such as providing a fixing pin that comes into contact with the lid 54 and opens the lid 54 in response to the lowering movement of the cassette half 5. If you want to take out the cassette half 5 after recording or playback, the drive lever 6 rotates counterclockwise in conjunction with an eject button (not shown), etc.
The same operation as shown in FIG.→FIG. 4c→FIG. 4b→FIG. 4a is performed. At this time, the rollers 3a and 3b are also rotating in the opposite direction, and the cassette half 5 that has come into contact with it is transferred by an amount of movement approximately twice that of the tray, so that it is transferred from the cassette holder 1 to the tray 2.

At this time, when the rear end of the cassette half rides on the convex portion 28, the front end edge is accommodated in the recess 18 and tilts forward, so that the rollers 3a, 3b are separated from the upper surface of the cassette half 5, and the rollers 3a, 3b are separated from the upper surface of the cassette half 5. 3
The transfer of the cassette half 5 in step b is completed.

Moreover, the first roller 3a and the second roller 3
b may have the same diameter, but if the diameters of the rollers are slightly different, the following effects can be obtained.
That is, when the cassette half is transferred by the rollers, the amount of transfer by the roller with the larger diameter becomes slightly larger, so that the cassette half receives a force that causes it to deviate in the opposite direction. Therefore, the cassette half is transferred while being pressed toward one side of the tray and cassette holder.

[Effect of the invention] According to the invention described above, the cassette half is transferred by the rotational force of the roller at a movement distance greater than the movement of the tray during the tray storage operation, so that the cassette half can be placed in the cassette holder at the same time as the tray is stored. It can be transported and the cassette holder can perform predetermined operations using appropriate known means, so it is extremely simple mechanically. Further, according to this invention, recording and playback operations can be performed automatically simply by placing the cassette half on the tray, so that the operation is extremely simple.

Furthermore, if the cassette half is placed horizontally on the tray, the front end of the cassette half 5 will move upward due to the rotational force of the rollers at the final stage of the transfer of the rollers 3a and 3b during ejection, as shown in FIG. 6b. After being lifted up, the cassette half 5 tends to fall onto the second surface of the tray, causing damage to the cassette half 5 and the generation of abnormal noises. However, this design places the cassette half in a forward-tilted position and prevents the cassette half from being ejected. Since the cassette half is configured so that it is tilted forward at the final stage of transporting the cassette half, the rollers 3a and 3b are separated at the upper surface of the cassette half 5 during ejection as shown in FIG. 6a. The above-mentioned problem could be solved without applying any force that would cause the half 5 to flip up.

Furthermore, if the diameters of the rollers are made different for the above-mentioned purpose, the cassette halves are pressed in one direction and transferred, so that they can be placed at a constant position.

[Brief explanation of the drawing]

Fig. 1 is a top view of the cassette tape recorder according to the embodiment of the invention, Fig. 2a is a perspective view of the cassette holder of the cassette tape recorder according to the embodiment of the invention, and Fig. 2b is the cassette tape recorder according to the embodiment of the invention. FIG. 2c is a perspective view of the supporting side plate of the cassette tape recorder according to the embodiment of the invention, FIG. 2d is a perspective view of the tip of the tray of the cassette tape recorder according to the embodiment of the invention, and FIG. The figure is a bottom perspective view of the cassette half, Figures 4a to 4d are side views of essential parts explaining the operation of the cassette tape recorder device according to the embodiment of this invention, and Figures 5a and 5b are protection of the cassette half. Fig. 6a is a side view showing the operation of the final stage of ejection of the cassette tape recorder device according to the embodiment of the invention, Fig. 6b is a side view showing the operation of opening and closing the cover, and Fig. 6b shows a cassette tape recorder having no convex portions and no concave portions. FIG. 3 is a side view of a main part showing the operation of the device in the final stage of ejecting. 21...Cassette half placement part, 2...Tray, 1...Cassette holder, 4...Support side plate,
5... Cassette half, 3a, 3b... Roller, 28... Convex portion, 18... Concave portion.

Claims (1)

[Scope of utility model registration request] Tray 2 with cassette half placement section 21
, a cassette holder 1 attached to the tray 2 so as to be movable only in the vertical direction, and a support side plate 4 supporting the tray 2 while allowing horizontal movement.
a roller 3 which is rotatably attached to the support side plate 4 and which contacts the surface of the cassette half 5 to be placed on the tray to move the cassette half in the rotational direction; A recess 18 is formed in the cassette holder 1, and includes a convex portion 28 that comes into contact with the rear end of the cassette half 5, and accommodates the leading edge portion of the cassette half 5 tilted forward by the convex portion 28. A cassette tape recorder device characterized by: