KR840000799Y1 - Recording and reproducing apparatus - Google Patents

Abstract

No content.

Description

Record and playback device

1 is a side cross-sectional view of the recording and reproducing apparatus showing the loading position of the cassette holder in a state in which the cassette of the recording and reproducing apparatus according to the present invention is not inserted into the cassette holder.

FIG. 2 is a side cross-sectional view similar to FIG. 1 but showing a state where a cassette is inserted into a cassette holder. FIG.

3 is a side cross-sectional view showing a state in which the cassette holder of FIG. 2 is pivoted to an operating position.

4 is a partially enlarged side sectional view of a latching device of another recording and reproducing apparatus.

The present invention relates to a recording and reproducing apparatus used as a record carrier in the form of a tape used in a cassette. The cassette is adapted to be inserted into a channel-type cassette holder of the recording and reproducing apparatus, and the cassette holder is configured to be mutually movable to the loading position and the operating position. The recording and reproducing apparatus includes a wall forming a passageway of a member for positioning the inserted cassette and forming at least one opening, and a cassette inserted into the cassette holder by the at least one spring force into the cassette holder's loading position. And at least one other spring biasing the cassette to said wall of the cassette holder at the loading position of the cassette holder. The inserted cassette is lifted from the wall of the cassette holder by the position member in the operating position and the engagement with the latching device against the other spring force in the operating position of the cassette veceptable is disengaged.

In known German (DE) Patent Application No. 1966088, the latch device consists of a latch hook fixedly mounted on a cassette holder near the insertion opening of the cassette holder. When the cassette holder is in the loaded position, the latch hook supports the cassette inserted into the cassette holder against the release spring force, and the cassette inserted by the other spring is pushed down to the lower wall of the cassette holder. When the cassette holder is moved to the operating position, the inserted cassette is lifted from the lower wall by the positioning member and the cassette is fixed in the operating position with the cassette released from the latch hook. When the cassette holder returns from the operating position to the loaded position, the discharge spring slides the cassette out of the cassette holder because the cassette is not supported by the latch hook.

However, in such a device, it is necessary to verify that the cassette is correctly positioned behind the fixed latch hook when the cassette is inserted into the cassette holder. Otherwise, the cassette is pulled out of the cassette holder by the release spring. In addition, this securing latch hook may in some cases prevent the smooth insertion of the cassette into the cassette holder.

The object of the present invention is to enable the insertion of a cassette into the cassette holder in a simple manner, and the user of such a device can support the inserted cassette in the cassette holder without disassembly completely, while at the same time recording and It is to provide a playback device.

The recording and reproducing apparatus according to the present invention is characterized in that the latching device is constituted by at least one clamp lever pivotable about an axis extending parallel to the bottom wall of the cassette holder perpendicular to the cassette insertion direction into the cassette holder. It is done. In addition, the clamp lever has a free end that protrudes into the cassette insertion passage of the cassette holder, and when the cassette is inserted into the cassette holder, the free end of the clamp lever is moved in the cassette insertion direction while the clamp lever is free. The free end of the clamp lever is pivoted from the released position to the clamping position so that the clamp engagement with the inserted cassette against the spring force acting on the inserted cassette when the clamp lever is in the clamp position. Form. In addition, this clamp engagement is disengaged by the cassette being lifted from the clamp lever and the lever returned to the disengaged position when the cassette holder is moved to the operating position, where the clamp lever can be pivoted by the cassette. The free end of the clamp lever is characterized in that the cassette can be moved opposite to the cassette insertion direction when the cassette is removed from the cassette holder.

The present invention provides a spring which acts on a cassette inserted in the cassette holder's loading position, that is, a spring which pushes the cassette towards the bottom wall of the cassette holder and a spring which is intended to eject the cassette from the cassette holder, which has the free end of the clamp lever into the cassette holder. Since a clamping force is generated between the clamp lever and the inserted cassette by generating a force for pivoting the clamp lever in such a direction moving in the direction opposite to the insertion direction, a detachable latch device for the cassette in the cassette holder is provided. do. In the cassette holder's operating position, however, the clamp engagement is disengaged so that the clamp lever can be freely pivoted to its disengaged position in the direction opposite to the cassette insertion direction into the cassette holder, and the latching device is not operated, so that the cassette holder is loaded It does not prevent the cassette from exiting from the cassette holder when moved to. Therefore, this structure is very simple and easy, insertion and removal of the cassette is easy and can be made without any resistance.

In the case of a very simple structure, in the case where the cassette holder has an inspection of 45 ° or less with respect to the horizontal in the loading position, there is an advantage that the clamp lever is susceptibly suspended and maintained in the disengaged position by its own weight. However, the clamp lever can be held in the disengaged position by the return spring. In such a device the cassette holder is inclined with respect to the horizontal at its loading position and its structure is free.

The free end of the clamp lever can be rounded, for example, for clamp engagement with the cassette. The surface of the free end of the clamp lever should then have a high frictional force, either by roughening the surface or by using a material such as rubber. In particular, it is advantageous for the jaw end of the clamp lever to be V-shaped so as to be able to engage the projection on the cassette so that the clamp engagement with the cassette is achieved. This allows the cassette to be easily supported inside the cassette holder in the mounting position.

The present invention is described in detail below with reference to the accompanying drawings as two embodiments.

1 to 3 show a recording and reclamation device 1 for use in a horizontal operating position, which has a deck plate 2 connected to the housing 3 of the device in an unillustrated manner. have. The channeled cassette holder 4 is journaled on the housing 3 to be pivotable about the pivot shaft 5. Thus, the cassette holder 4 is movable through the opening 6 in the housing 3 to the loading position shown in FIGS. 1 and 2 and the operating position shown in FIG. Tension springs 7 acting on the housing 3 and cassette holder 4 respectively allow the cassette holder 4 to be held in the loaded position.

As shown in Figs. 1 and 2, the cassette holder 3 has an inclination of about 30 degrees with respect to the horizontal at its loading position. The cassette holder 4 is placed in the loading position by contacting the top wall 8 with the stop 9 on the housing 3 by means of the tension spring 7. The cassette holder 4 also has a bell clamp-shaped catch 13 on the deck plate 2 so that the cassette holder 4 can be supported in the operating position against the tension of the tension spring 7. The clasp is journaled so as to be pivotable with respect to the pivot shaft 12. The hook-shaped free end 14 of the clasp 13 is configured to engage the groove 15 of the lower wall 10 of the cassette holder 4. Therefore, in order to more reliably hold the position of the clasp 13 by the tension force of the tension spring 16, the clasp 13 is supported on the deck plate 2 at the buried contact 17. A pushbutton 18 is also provided to disengage the clasp 13, which is guided to be movable in the housing 3 and configured to actuate the clasp 13 by means of an actuating rod 19. The actuation rod 19 has a projection 20 so that the push button is supported at the stop 22 by the spring 21 and maintained at the stop position.

In the apparatus having such a structure, the cassette holder held by the tension spring 7 in the loaded position can be moved to the operating position by the cassette user pressing the upper wall 8 of the cassette holder from above. While the cassette holder is moved to the operating position, the bottom wall 10 presses against the hooked end 14 of the clasp 13 so that the clasp is slightly pivoted against the action of the spring 16. When the cassette holder reaches the operating position, the clasp 13 is pebbed back to the original position by the spring 16, and the hooked end 14 is grooved 15 of the bottom wall 10 of the cassette holder 4 Interlocked with Thus, the cassette holder 4 is supported in the operating position, and the lower wall 10 is placed on the stop 11. In order to return the cassette holder from the operating position to the loaded position, the clasp 13 is pivoted by pushing the push button 18 so that the cassette holder 4 is released. The cassette holder is therefore pivoted by the tension of the tension spring 7 to be supported at the loading position.

The cassette holder 4 is configured to insert a cassette 23, which is schematically shown in FIGS. 1 to 3, which, although not shown, has a record carrier in the form of a tape. . For example, a tape-shaped record carrier is wound on two reels, which are installed adjacent to each other on one plane or coaxially overlapped with each other. It may also have only one reel to convey the record carrier in the form of a tape of a cassette, but this is not described in detail as it is not relevant to the present invention.

The conventional rectangular cassette 23 forms a channel-shaped recess 25 in the major wall 24 that extends perpendicular to the drawing plane of FIGS. 1 to 3. Thus, two protrusions 26 and 27 are formed by the side wall of the groove 25. In addition, although only one cassette 23 is shown in FIGS. 1 to 3, two locating holes 28 and other locating holes 29, which are spaced apart from one another in a channel-shaped groove, are arranged in the circumferential wall 24. To form. This position hole allows the cassette to be placed in its operating position, which will be described later in detail in accordance with FIG.

Through the opening of the front face 30 of the cassette holder 4, the cassette 23 is inserted into the cassette holder 4 in the direction of the arrow 31 when the cassette holder 4 is in the mounting position as shown in FIG. Can be. As the insertion proceeds, the cassette 23 is brought into contact with the U-shaped bracket 35 which is movably guided in the cassette insertion direction 31 in the cassette holder 4, and the two of the rear sides of the bracket 35 are brought into contact with each other. The springs 32 and 33 are pressed. These springs 32 and 33 are fitted in compression with one end at the bracket 35 and the other end at the rear wall 34 of the cassette holder 4. The U-shaped bracket 35 is composed of two rims 38, 39 whose free ends 36, 37 are bent outwards, and the free ends 36, 37 bent outwards are formed on the top wall of the cassette holder. 8) and grooves 40 and 41 respectively formed in the lower wall 10, respectively. When the cassette is not inserted in the cassette holder, the free ends 36 and 37 are supported by the springs 32 and 33 against the end portions 42 and 43 of the grooves 40 and 41, and are supported by FIG. As shown, the bracket 35 is placed in the end position. When inserting the cassette into the cassette holder, the cassette contacts the cross section 44 of the bracket 35 and moves the bracket against the spring 32, 33 forces until the cassette is fully inserted into the cassette holder. . At this time, the cassette is fixed in the cassette holder by the latch device 45. Accordingly, the latch device 45 leaves the cassette inserted in the cassette holder from being discharged out of the cassette holder by the springs 32 and 33 force.

In this respect, the spring acting when the cassette is inserted into the cassette compartment does not need to be installed in the cassette holder. For example, for this purpose, the cassette can be used to provide a sleeve that encloses or encloses a portion of the cassette and to enable the sleeve to be movable relative to the cassette and the spring operating between the sleeve and the cassette, the sleeve The cassette causes the cassette to be moved against a spring force acting between the sleeve and the cassette when the cassette is inserted into the cassette compartment.

1 to 3, two springs 46 are provided in the cassette holder 4, which springs are spaced apart from each other in a direction parallel to the pivot shaft 5 of the cassette holder 4. One is shown. The form of the leaf spring of the spring 46 is installed in the groove 47 in the upper wall 8 of each cassette holder 4. The spring 46 presses the cassette inserted into the cassette holder in the cassette holder's mounting position toward the lower wall 10 of the cassette holder as shown in FIG.

As already mentioned, the cassette 23 has holes 28 and 29 to put the cassette inserted into the cassette holder into the operating position when the cassette holder moves to its operating position. In order to position the inserted cassette in its operating position, the recording and reproducing apparatus 1 has three cylindrical locating pins 48 and 49 on the deck plate 2, The three position holes 28, 29 on the circumferential wall 24 are fitted. When the cassette holder is placed in the operating position, the three position pins are connected through three openings 50 and 51 formed in the lower wall 10 of the cassette holder so as to engage with the cassette inserted in the cassette holder as shown in FIG. Thus, the cassette is fitted to the position pins 48 and 49 at the circumferential wall 24. That is, the cylindrical projections 52, 53 on the free end of the location pins having a diameter smaller than the location pins are engaged with the location holes 28, 29 of the cassette. In this way the cassette is placed in the operating position in which the cassette is lifted from the bottom wall 10 of the cassette holder 4 by pins 48 and 49 against the leaf spring 46 force.

As already mentioned, a latch device 45 is provided to support the cassette in the cassette holder with the two compression springs 32 and 33 force to the operating position of the cassette holder.

In this embodiment, the latch device is composed of two clamp levers 55 in the lower wall 10 of the cassette holder. These levers are provided pivotably with respect to the shaft 54 and extend parallel to the lower wall at right angles to the insertion direction 31 of the cassette 23 of the cassette holder only. Although only one clamp lever is shown in FIG. 3, it is installed adjacent to each other in a direction parallel to the pivot shaft 5 of the cassette holder. In the lower wall 10, the cassette holder 4 has two openings 56 having a predetermined distance therebetween, and a clamp lever 55 is installed therein. The upper free ends 57 of the two clamp levers 55 extend in a V shape toward the cassette insertion passage into the cassette holder. Thus, when the cassette is inserted into the cassette holder, the two clamp levers 55 can be pivoted by the cassette from the disengaged position shown in FIG. 1 to the clamp position shown in FIG. 2 by the cassette. In this respect, the pivot movement of the clamp lever 55 in the insertion direction 31 of the cassette means the movement of the clamp lever in which the upper end 57 of the clamp lever is moved in the insertion direction 31.

In this case, the clamp lever 55 is pivotably suspended from the cassette holder, so that the clamp lever is held in the disengaged position by the weight of the clamp lever. The clamp lever 55 has protrusions 58 facing the front face 30 of the cassette holder, respectively, at opposite ends of the V-shaped upper end 57. As shown in FIG. 1 and FIG. 3, by providing the projection 58, the clamp lever has a front end 30 of the cassette holder with the upper end 57 at the lower end of the rear side in the position where the clamp lever is disassembled. It is supported by its own weight in a position inclined toward). As already mentioned, when the cassette is inserted into the cassette holder into the cassette holder's mounting position, the clamp lever pivots from its disengaged position to the clamp position. In the clamp position of the two clamp levers 55 the clamp lever is at its upper end 57 the lower wall of the cassette holder of the spring holder 32 of the springs 32, 33 which acts on the cassette inserted in the direction in which the cassette is withdrawn. It is clamped with the inserted cassette 23 against the force by the leaf spring 46 supporting the cassette toward 10).

As shown in FIG. 2, when clamped with the cassette, the V-shaped upper end 57 of the clamp lever 55 engages the protrusion 26 on the cassette, thus making a very easy clamp connection. The clamp connection between the cassette and the clamp lever formed when the cassette is inserted into the cassette holder at its loading position is released when the cassette holder is moved to its operating position. The inserted cassette is lifted from the lower wall of the cassette holder by the position pins 48 and 49, which also lifts the cassette from the clamp lever, thus dismantling as the clamp lever is pivoted to its disengaged position. The cassette is no longer supported by the clamp lever. This state is shown in FIG. When the cassette is removed from the cassette holder, the clamp lever 55 is moved to the disassembly position shown in FIG. 3 by the cassette only in the direction opposite to the insertion direction 31 of the cassette. As shown in FIG. 3, the disengagement position of the clamp lever shown in FIG. 3 relative to the cassette holder is not the same as the disengagement position of FIG. 1 determined by the gravity of the clamp lever suspendingly suspending. This is because the cassette holder is placed at different positions in the two states shown in FIG. 1 and FIG. However, it will be appreciated that in both cases the clamp lever is in the disengaged position since the disengaged position of the clamp lever relative to the cassette means all positions of the clamp lever where the clamp lever is not clamped to the cassette.

When the cassette is inserted into the mounting position in the cassette holder by simple linear motion in the insertion direction 31 shown in FIG. 1, it engages with the V-shaped upper end 57 of the clamp lever 55 protruding into the cassette holder. The upper end 57 will slide over the circumferential wall 24 of the cassette and pivot the clamp lever in the cassette insertion direction. In other words, the cassette holder is pivoted clockwise. Thus, the cassette is brought into contact with the bracket 35 to move the bracket against the force of the compression springs 32 and 33, where the spring is compressed. During insertion the leaf spring 46 installed on the upper wall 8 of the cassette holder also works with the cassette to press the cassette against the lower wall 10 of the cassette holder. When the cassette is completely inserted into the cassette holder, the clamp lever 55 is engaged under the protrusion 26 on the main wall 24 of the cassette by the V-shaped upper end 57 by gravity acting on the lever.

By the force of the springs 32, 33 acting on the cassette, the inserted cassette moves the upper end 57 of the clamp lever 55 in the opposite direction of the insertion direction 31 of the cassette 23 into the cassette holder. This movement is prevented by the clamp connection formed between the clamp lever and the cassette, but the cassette is firmly supported in the cassette holder by the clamp lever when the cassette holder is in its loaded position.

As already mentioned, the cassette holder can be manually pivoted to its operating position and the cassette holder is moved into the recording and playback apparatus during this pivot movement through the opening 6 of the housing 3. Immediately before the cassette holder reaches its operating position, the projections 52, 53 on the positioning pins 48, 49 are engaged with the positioning holes 28, 29 of the cassette and the cassette is the leaf spring as shown in FIG. The circumferential wall 24 is brought into contact with the position pin by means of 46. As the cassette holder gets closer to its operating position, the lower wall 10 of the cassette holder comes away from the cassette's circumferential wall 24, so that the pivotable suspending clamp lever 55 falls away from the cassette itself. The weight is pivoted to the disengaged position, where the clamp lever is inclined with respect to the vertical and the upper end 57 of the clamp lever is inclined toward the front face 30 of the cassette holder with respect to the vertical. In this way the clamp connection formed when the cassette is inserted into the cassette holder is automatically released when the cassette holder is moved to its operating position. When the cassette holder is in its operating position, the cassette is also in the operating position, in which the cassette is disassembled from the lower wall of the cassette holder by the position pin on the recording and playback apparatus. Thus, in the cassette's operating position, the compression springs 32, 33 acting on the cassette through the bracket 35 push the cassette in the direction opposite to the insertion direction of the cassette, but this is the position pin 48 engaged with the position hole. , By projections 52, 53 of 49. As already mentioned, the cassette holder is firmly fixed in its operating position by the latch 13.

The pushbutton 18 is operated when the cassette holder is returned from its operating position to the loaded position. Thus the clasp 13 is pivoted and the cassette holder is dismantled so that the cassette holder is pivoted to the loaded position by the tension spring 7. When the cassette holder is switched from the operating position to the loaded position, the lower wall 10 of the cassette holder is separated from the cassette originally supported by the positioning pins 48 and 49. Therefore, the upper end 57 of the clamp lever 55 fixed to the lower wall of the cassette holder comes into contact with the main wall 324 of the cassette. In this case, the upper end of the clamp lever is already in the disassembled position. Since the projection 58 on the clamp lever 55 is inclined with respect to the vertical in the direction opposite to the cassette insertion direction, the upper end of the lever is pivoted in the opposite direction. Thus, the clamp lever no longer forms a clamp defect with the cassette when the cassette holder is moved from the operating position to the loaded position.

After the cassette holder is no longer moved so that the cassette is lifted from the positioning pins 48 and 49 and the projections 52 and 53 and exited from the position holes 28 and 29, the lower wall 10 of the cassette holder is the main wall of the cassette. Contact with (24). In this case, the cassette released from the positioning pin and the clamp lever is lightly slid out of the cassette holder in the direction opposite to the insertion direction 31 by the compression springs 32 and 33. At this time, the cassette keeps the clamp lever pivoted in the direction opposite to the cassette insertion direction into the cassette. When the cassette holder is placed in its loaded position, the cassette moved by the compression springs 32, 33 has already partially protruded from the cassette holder. The bracket 35 is then engaged with the free ends 36, 37 of the rims 38, 39 at the ends 42, 43 of the grooves 40, 41. Thus, the cassette can be easily grasped and pulled out of the cassette holder. When the cassette is ejected from the cassette receptacle, the clamp lever returns to its disengagement position as shown in FIG. 1 by its own weight, and when the cassette is reinserted in this position, the clamp lever is moved to the clamp position shown in FIG. Can be butted. That is, as soon as the cassette is removed from the cassette holder, the clamp lever is able to support the cassette to be inserted into the cassette holder again.

1 to 3, the cassette to be inserted into the cassette holder in the loaded position is simply supported by the cassette holder by the clamp lever, and this support is made by the releasable clamp engagement between the clamp lever and the cassette. The clamp engagement is also automatically disengaged when the cassette holder is placed in the operating position. When the clamp engagement is disengaged, the clamp lever is pivoted to the release position, where the clamp lever may prevent clamp engagement with the cassette when the cassette is removed from the cassette holder.

4 shows another recording and reproducing apparatus in which the cassette holder 4 is shown in the operating position. For the cassette latch device 45 inserted in the cassette holder 4, the recording and reproducing apparatus is constituted by only one clamp lever 55 pivotable about the shaft 54. As shown in FIG. On the free end 57 of the upper part, the clamp lever 55 provides a cylindrical clamp member 54, the axis of which extends parallel to the shaft 54, and the clamp member is provided with a rubber to increase the friction force during operation with the cassette. It consists of. As shown in FIG. 4, the clamp lever 55 is supported in the disengaged position by the return spring 60. As shown in FIG. Feedback spring 60 is mounted on shaft 54 and is in the form of a torsion wire spring.

The spring ends 61, 62 are also bent round so as to extend at right angles to the drawing plane. A clamp lever 55 is provided between the spring ends 61, 62, which engages the lug 63 protruding from the bottom wall 16 of the cassette holder 4. The lug 63 is such that the clamp lever 55 is placed in an inclined position with respect to the circumferential wall 24 of the cassette 13 in a manner similar to that already mentioned in accordance with FIGS. 1 to 3 in its disengaged position. With such a position and shape. The upper end 57 of the clamp lever is thus inclined in the opposite direction of the cassette insertion direction 31, and the clamp lever is operated on the cassette after the cassette holder is moved from its operating position to its loaded position when the cassette is withdrawn from the cassette holder. The clamping force with the cassette can be prevented from being formed by the spring force that is applied.

The operation of the latch device 45 of the recording and reproducing apparatus of FIG. 4 is similar to that of the apparatus shown in FIGS. Even in the apparatus of FIG. 4, the cassette is firmly supported in the cassette holder by the clamp lever. By using the spring to return the clamp lever to its disengaged position, the clamp lever can form a clamp engagement with the inserted cassette at any position of the recording and playback apparatus.

Claims (1)

Inserts and uses the cassette 23 into the channel-type cassette holder 4, the cassette holder being movable to the loading position and the operating position, and forming at least one opening for the passage of the position member for positioning the inserted cassette; The cassette is lowered at the loading position of the cassette holder and the latching device 45 for the cassette inserted into the cassette holder at the loading position of the cassette holder against one lower wall 10 and at least one spring 32, 33 force. Consisting of at least one other spring 46 pressed against the wall, wherein the inserted cassette is lifted from the lower wall of the cassette holder by the positioning member at its operating position and hatched against the other spring force at the operating position of the cassette holder. In the recording and reproducing apparatus used for a tape-shaped record carrier housed in a cassette in which the apparatus is disassembled, the latching apparatus 4 5) consists of at least one clamp lever 55 mounted on the bottom wall so as to be pivotable about an axis 54 extending perpendicular to the cassette insertion direction into the cassette holder and parallel to the bottom wall, the clamp The lever has a free end 57 protruding into the cassette insertion passage of the cassette holder, spring pivoted on the cassette into which the free end 57 of the clamp lever is inserted, while being pivoted to the clamp position when the cassette is inserted into the cassette holder. (32, 33, 46) to form a clamp coupling with the inserted cassette, the clamp is released by the cassette is lifted when the cassette holder is moved to the operating position, the clamp lever is released from the operating position to the disassembled position When the cassette is returned and the cassette is removed from the cassette holder, the clamp lever is pivoted by the cassette in a direction opposite to the insertion direction of the cassette. The recording and reproducing apparatus characterized in that the support in position.