KR970003699Y1 - Housing locking device of cassette - Google Patents

Abstract

None.

Description

Cassette housing locking device for magnetic record player

1 is a partially exploded perspective view showing a cassette housing of a general magnetic recording player.

2 is a partial cross-sectional view showing the configuration of a cassette housing locking device of a magnetic recording and reproducing apparatus according to the prior art.

Figure 3 is a partially exploded perspective view showing a cassette housing of a magnetic recording player equipped with a locking device according to the present invention.

Figure 4 is a perspective view showing a cassette housing locking device of the magnetic recording player according to the present invention.

5 is a perspective view of a locking slider constituting the cassette housing locking device of the magnetic recording / playback apparatus according to the present invention.

6 is a plan view of a function plate constituting the cassette housing locking device of the magnetic recording / playback apparatus according to the present invention.

7a and b are views showing the action of the cassette housing locking device of the magnetic recording player according to the present invention, a is a plan view showing the seating state of the cassette holder, b is a plan view showing the ejection state of the cassette holder.

* Explanation of symbols for main parts of the drawings

11: cassette holder 12: locking pin

12a: shaft portion 12b: locking portion

13: base chassis 14, 14 ': locking slider

14a, 14'a: locking groove 14b, 14'b: slope

14c, 14'c: slope 15, 15 ': elastic member

16: function plate 16a, 16'a: guide worker

16b, 16'b: outer side 16c, 16'c: inner side

17, 17 ': opening member 18, 18': vertical wall

19, 19 ': support rod 20, 20': shaft pin

21, 21 ': Open lever 22: Cam gear

22a: cam groove 23: function arm

The present invention relates to a cassette housing locking device of a magnetic recording player such as a top-loading V-Cal and a camcorder. In particular, by removing the height deviation of left and right when the cassette holder is seated, the seating operation of the cassette tape is more stable. The present invention relates to a cassette housing locking device for a magnetic recording / playback device which prevents the deformation of parts and makes the locking operation of the cassette holder more secure.

The cassette housing of a general magnetic recorder has a structure in which the cassette holder 2 is rotatably coupled to the rear of the base chassis 1 as shown in FIG.

In the cassette housing of the magnetic recording / playback apparatus, when an eject signal is applied, the cassette holder 2 is pivotally opened from the base chassis 1, and in such a state, the cassette tape is placed in the cassette holder 2, and then the cassette is inserted. When the holder 2 is lightly pressed downward, the cassette holder 2 is locked to the base chassis 1 by the cassette housing locking device.

A typical embodiment of a cassette housing locking device of a magnetic recording player according to the prior art will be described with reference to the accompanying drawings.

As shown in FIGS. 1 and 2, a cassette housing locking device is provided at one side of the upper surface of the base chassis 1 and at one side of the cassette holder 2 corresponding thereto. Looking at, the locking base (3) is fixed to the upper side of the side of the base chassis (1), the locking arm (5) rotatably coupled to the shaft pin (4) fixed to the locking base (3), the shaft pin A functioning plate coupled to (4) to support the locking arm 5 so that it has a clockwise rotational force at all times, and a function plate for interlocking the locking arm 5 to release the locking of the cassette holder 2. (7) and a locking pin (8) fixed to one side of the cassette holder (2).

The locking arm 5 is formed with an inclined surface 5a and a locking step 5b.

In the drawing, reference numeral 9 shows a locking lever.

In the cassette housing locking device of the magnetic recording / reproducing apparatus, as shown in FIG. 2, the locking arm 5 receives a clockwise force about the shaft pin 4 by the elastic force of the locking spring 6. When the cassette holder 2 is lightly pressed in the state, the locking pin 8 of the cassette holder 2 descends on the inclined surface 5a of the locking arm 5 so that the locking arm 5 is locked by the locking spring 6. It rotates in the counterclockwise direction around the shaft pin (4), the moment the locking pin 8 is out of the inclined surface (5a) by the restoring force of the locking spring (6) in the clockwise direction The cassette holder 2 is locked to the locking base 3 by being rotated so that the locking pin 8 is caught by its locking step 5b.

As such, when ejecting the cassette halter 2 while the cassette holder 2 is locked to the locking base 3, the functioning plate 7 moves to the right in the drawing by a separate driving force. (5) overcomes the elasticity of the locking spring (6) and rotates again counterclockwise around the shaft pin (4), so that the locking step (5b) of the locking arm (5) is released from the locking pin (8) Ejection of the cassette holder 2 becomes possible.

However, in the prior art as described above, since the cassette housing locking device is formed at each side of the base chassis 1 and the cassette holder 2, the height deviation of the left and right sides when the cassette holder 2 is seated. There was a disadvantage in that the seating operation of the cassette tape was unstable due to the occurrence of, and also the structure in which the locking arm 5 is in contact with the circumferential direction of the cantilever-shaped locking pin 8, and the locking operation of the cassette holder 2 is repeated. There have been various problems such as the locking operation of the cassette holder 2 is not easy, such as the caulking portion of the locking pin 8 is deformed.

The main object of the present invention is to provide a cassette housing locking device for a magnetic recording / playback device which makes it possible to stabilize the seating operation of a cassette tape by excluding the height deviation of left and right sides when the cassette holder is seated.

Another object of the present invention is to provide a cassette housing locking device for a magnetic recording / playback device which can more reliably lock the cassette holder.

In order to achieve the object of the present invention, the locking pin is fixed to the lower portion in the center of the lower side of the cassette holder, and the left and right to selectively hold the locking pin is installed to enable the linear movement on both sides of the upper surface of the base chassis A pair of locking sliders, an elastic member elastically supporting such that the inner surface of the locking slider is always in contact, a locking guide fixed to a central portion of the upper surface of the base chassis to guide the movement of the locking slider, and And a function plate installed on the lower side to enable linear movement, an opening member for selectively separating the locking slider by the movement of the function plate, and driving means for driving the function plate. A cassette housing locking device is provided.

Vertical walls are formed on both sides of the upper surface of the base chassis at regular intervals, and support bars are fixed to the vertical walls, respectively, and the locking sliders are coupled to the support bars to be movable, and elastic members are respectively provided on the support bars. Inserted, the locking sliders are each elastically supported inwardly.

The locking pin has a conical hook portion formed at the lower end of the shaft portion.

The locking slider has a semicircular locking groove for catching the shaft of the locking pin on the inner side, an inclined surface for facilitating entry of the locking pin to the inner side, and an inclined surface for facilitating entry of the opening member to both sides of the inner side, respectively. Is formed.

The function plate is formed with guide holes of a predetermined shape, each of which includes an outer side and an inner side through which the opening member is guided on both sides of the intermediate portion.

The opening member is fixed to an end of the opening lever rotatably coupled around the shaft pin.

The driving means includes a cam gear having a cam groove having a predetermined shape, and a function arm for interlocking a function plate while interlocking with the cam gear.

Hereinafter, the cassette housing locking device of the magnetic recording player according to the present invention will be described according to the embodiment shown in the accompanying drawings.

FIG. 3 is a partially exploded perspective view showing a cassette housing of a magnetic recording player equipped with a locking device according to the present invention, and FIG. 4 is a perspective view showing a cassette housing locking device of a magnetic recording player according to the present invention, and FIG. Fig. 6 is a perspective view of a locking slider constituting the cassette housing locking device of the magnetic recording player according to the present invention, and Fig. 6 is a plan view of the function plate constituting the cassette housing locking device of the magnetic recording player according to the present invention.

As shown in the drawing, the cassette housing locking device of the magnetic recording and reproducing apparatus according to the present invention includes both the locking pins 12 fixed to the lower portion in the center of the lower surface of the cassette holder 11, and both the upper and middle portions of the upper surface of the base chassis 13; A pair of left and right locking sliders 14 and 14 ', which are installed to allow linear movement to selectively hold the locking pin 12, and the inner surface of the sliders 14 and 14' are always in contact with each other. An elastic member 15, 15 'which is elastically supported so as to be supported, a locking guide 25 which is fixed to a central portion of the upper surface of the base chassis 13 to guide the movement of the locking sliders 14, 14', A function plate 16 installed on the lower side of the base chassis 13 to allow linear movement, and an opening member for selectively separating the locking sliders 14 and 14 'by the movement of the function plate 16; 17) (17 ') and drive means for driving the function plate 16 It is configured.

The locking pin 12 has a conical locking portion 12b formed at the lower end of the shaft portion 12a.

Vertical walls 18 and 18 'are formed on both sides of the upper surface middle portion of the base chassis 13 at regular intervals, and support bars 19 and 19' are disposed on the vertical walls 18 and 18 ', respectively. Locking sliders 14 and 14 'are coupled to the supporting rods 19 and 19' so as to be movable, and elastic members such as compression springs are supported on the supporting rods 19 and 19 '. 15 and 15 'are respectively inserted to support the locking sliders 14 and 14' inwardly.

The locking sliders 14 and 14 'are formed with semi-circular locking grooves 14a and 14'a on the inner side of the locking sliders 14 and 14' for holding the shaft portion 12a of the locking pin 12.

The inclined surfaces 14b and 14'b are respectively formed at the inner side of the locking sliders 14 and 14 'to facilitate the entry of the locking pin 12 into the locking sliders 14 and 14'.

The function plate 16 is formed with guide holes 16a and 16a 'each having a predetermined shape on both sides of the intermediate portion, and the guide holes 16a and 16a' are formed of opening members 17 and 17 '. ) Includes outer portions 16b and 16'b and inner portions 16c and 16c ', respectively.

The opening members 17 and 17 'are end portions of the opening levers 21 and 21' rotatably coupled around the shaft pins 20 and 20 ', as shown in FIG. It is fixed at.

Inclined surfaces 14c and 14'c are formed at both sides of the inner side surfaces of the locking sliders 14 and 14 'to facilitate the entry of the opening members 17 and 17', respectively.

In addition, the driving means includes a cam gear 22 having a cam groove 22a having a predetermined shape, and a function arm 23 interlocking with the cam gear 22 to interlock the function plate 16.

The function arm 23 is fixed to the cam pim 23a is inserted into the cam gear 22, the end of the function arm 23 and one end of the function plate 16, the engaging pin 23b and its The engaging holes 16d into which the engaging pins 23b are inserted are formed, respectively, so that the function plates 16 are linearly moved by the rotation operation of the function arms 23.

Reference numeral 24 in the figure shows the shaft pin of the function arm (23).

The operation and effect of the cassette housing locking device of the magnetic recording and reproducing apparatus according to the present invention constructed as described above are as follows.

As shown in FIG. 4, when the cassette holder 11 is not mounted to the base chassis 13, both locking sliders 14 and 14 'of the base chassis 13 are inertia members 15 and 15. In contact with the inner surface by the elastic force of ') is maintained.

When the cassette holder 11 is pressed lightly in the direction of the base chassis 13 in this state, the locking pin 12 of the cassette holder 11 is inclined 14b and 14 of the locking sliders 14 and 14 '. 'b) is lowered, and when the conical locking portion 12b of the locking pin 12 touches the locking grooves 14a and 14'a of the locking sliders 14 and 14', both locking sliders The 14 and 14 ′ guide the entry of the locking portion 12b while being spaced apart from both sides to overcome the elasticity of the elastic members 15 and 15 ′.

Thereafter, the locking sliders 14 and 14 'are restoring force of the elastic members 15 and 15' in a state where the conical locking portion 12a is completely lowered and the cassette holder 11 is seated on the base chassis 13. By moving inwards, the locking grooves 14a and 14'a hold the shaft portion 12a of the locking pin 12 so that the cassette holder 11 remains locked.

At this time, since the function plate 16 is in a stopped state, the opening member 17 (to the outer portions 16b and 16'b formed in the guide holes 16a and 16'a of the function plate 16). 17 ') are positioned, so that the locking sliders 14 and 14' are interlocked by the opening members 17 and 17 '(see also FIG. 7A).

In the case where the cassette holder 11 is ejected in such a state, as shown in FIG. 7 (b), when the camkey 22 is rotated clockwise by a separate driving source (not shown), The function arm 23 in which the kim pin 23a is inserted into the cam groove 22a of the cam gear 22 rotates in the counterclockwise direction about the shaft pin 24, so that the function connected to the function arm 23 is rotated. The plate 16 is moved to the right in the figure.

Since the opening members 17 and 17 'are moved to the inner portions 16c and 16c' of the guide holes 16a and 16a 'by the movement of the function plate 16, the locking sliders 14 and 14'. The inclined surfaces 14c and 14'c formed on both sides of the inner surface of the < RTI ID = 0.0 >), and < / RTI > the locking sliders 14 and 14 'to be spaced apart from the left and the right while winning the elasticity of the elastic members 15 and 15'. By doing so, the eject operation of the cassette holder 11 is enabled.

On the other hand, when the ejection operation of the cassette holder 11 is completed, the cam gear 22 rotates in the reverse direction to maintain the original state.

As described above, the cassette housing locking arrangement of the magnetic recording player according to the present invention has a configuration for locking the cassette holder at the center of the base chassis and the cassette holder, so that the height of the left and the right when the cassette holder is seated. By eliminating the deviation, the cassette tape can be more securely settled, and the use of the cantilever-type locking pins can be eliminated as in the conventional case. Has the effect of.

Claims (9)

Locking pins fixed downward on the lower surface of the cassette holder, a pair of left and right locking sliders installed on the upper surface of the base chassis to allow linear movement, and selectively holding the locking pins, and an inner surface of the locking sliders. An elastic member that is elastically supported to be always in contact, a locking guide fixed to an upper surface of the base chassis to guide the movement of the locking slider, a function plate installed on the lower side of the base chassis to enable linear movement, and the function And an opening member for selectively separating the locking slider by the movement of the plate, and a driving means for driving the function plate. According to claim 1, wherein the vertical wall is formed on the upper surface of the base chassis at regular intervals, respectively, the support rods are fixed to the vertical wall, the locking slider is coupled to the support rods so as to be movable, the support rods are elastic And the locking sliders are elastically supported inwardly, respectively, wherein the members are inserted, respectively. 2. The cassette housing locking device of claim 1, wherein the locking pin has a conical engaging portion formed at a lower end of the shaft portion. The cassette housing locking device according to any one of claims 1 to 3, wherein the locking slider has semi-circular locking grooves formed on the inner side thereof so as to hold the shaft portion of the locking pin. 4. The cassette housing locking device according to any one of claims 1 to 3, wherein the locking slider has inclined surfaces formed on the inner side thereof to facilitate entry of the locking pin. 4. The cassette housing locking device according to any one of claims 1 to 3, wherein the locking slider is formed with an inclined surface to facilitate entry of the opening member into the inner side and the both side portions. The cassette housing locking device according to claim 1, wherein the function plate has guide holes having a predetermined shape, each of which includes an outer side and an inner side through which the opening member is guided on both sides of the intermediate portion. 8. The cassette housing locking device of claim 6 or 7, wherein the opening member is fixed to an end of the open lever rotatably coupled around the shaft pin. The cassette housing locking device of claim 1, wherein the driving means includes a cam gear having a cam groove having a predetermined shape, and a function arm for interlocking a function plate while interlocking with the cam gear.