KR100260926B1 - Apparatus for locking release of tape cassette lid of tray type tape recorder - Google Patents

Abstract

PURPOSE: A device for releasing a tape cassette lead locking of a tray manner magnetic recording player is provided to stably release a lead locking state of a small tape cassette, and to secure a lead release operation of the tape cassette. CONSTITUTION: A lock release flap(120) is combined with a rear one side of a cassette holder(50) to perform a lineal movement in front/back directions. A lock release lever(121) is installed at an inside of the lock release flap(120). A lock release protuberance part(121a) is formed at the lock release lever(121). The lock release protuberance part(121a) moves a lead lock part which is formed at a lower one side of a small tape cassette. A tension coil spring is connected to a determined location of the lock release flap(120), and elastically supports the lock release flap(120). A stopper bracket(150) is fixed to an upper back side of a main chassis, and forwardly moves the lock release flap(120) at a completion point of a loading operation, then operates the lead lock part of the small tape cassette by the lock release protuberance part(121a).

Description

Tape cassette lead unlocking device for tray type magnetic recorder {APPARATUS FOR LOCKING RELEASE OF TAPE CASSETTE LID OF TRAY TYPE TAPE RECORDER}

The present invention relates to a tray type magnetic record player such as a digital video cassette recorder (D-VCR), and more particularly, to more stably release the lead locking state of a relatively small small tape cassette mounted on a cassette tray. A tape cassette lead unlocking device for a tray type magnetic record player.

Recently, magnetic recording players such as VCRs, D-VCRs, HD D-VCRs, and camcorders have been widely used due to the improvement of overall living standards, and the magnetic recording players have a tape cassette in the magnetic recording player main body according to the storage method of the tape cassette. The front loading method of lightly pushing and the tray loading method using a tray which is moved back and forth in the main body of the magnetic recorder are known. Top loading methods for storing and side loading methods for storing tape cassettes in the lateral direction of the main body of portable camcorders are also applied.

The front loading method, the tray loading method, the top loading method, and the side loading method as described above are applied in consideration of various factors such as an installation environment, a use environment, a configuration, a function, and a production cost of the magnetic recording player.

In addition, the types of tape cassettes are also diversified due to differences in materials, recording methods, manufacturing methods, and recording prevention technologies in consideration of various needs of users, and the size of the tape cassettes is also diversified.

Therefore, in recent years, a technique has been attempted to selectively use tape cassettes of different sizes in a single magnetic recording player in addition to the technology improvement of the magnetic recording player.

However, in the magnetic recording player as described above, a technique is known in which two types of tape cassettes of different sizes are used in a magnetic recording player such as a front loading method, but two sizes are different in a tray loading type magnetic recording player. There is no known technique for using two types of tape cassettes. Accordingly, two types of tape cassettes of different sizes are used to meet various needs of a user. Magnetic recording player is required.

On the other hand, the broadcasting station is equipped with a magnetic recording and reproducing system in which two or more tape cassettes of different sizes are used by using trays, but the overall system is not only large but also very complicated in structure and too expensive. It was not suitable for public use.

Recently, a magnetic recording and reproducing apparatus for accommodating two tape cassettes of different sizes is known from Japanese Patent Application Laid-open No. Hei 8-124256 (name; "cassette loading device"). The technology for releasing the locking state of the cassette is a complex structure linked to the technology of opening the lid (cover) of the tape cassette, which not only acts as a factor to increase the production cost of the product, but also to reduce the size and thickness of the magnetic recorder. There was room for improvement such as retrograde.

In addition, the linear reciprocating movement of the structure for releasing the locked state of the tape cassette is not completely guaranteed, and the structure for elastic support is also insufficient and always includes the possibility of malfunction.

Therefore, the main object of the present invention is a tape cassette read unlocking device of a tray type magnetic recorder capable of releasing stably the lead locking state of a small tape cassette having a relatively small size mounted on the cassette tray with a simpler configuration. Is to provide.

It is another object of the present invention to provide a tape cassette lead unlocking device of a tray type magnetic recording / playback device which makes it possible to more reliably release the tape cassette lead, thereby ensuring the reliability of the operation.

1 is a plan view of a tray type magnetic record player according to the present invention;

2 is a left side view of FIG. 1;

3 is a right side view.

4 is a front view.

Fig. 5 is a perspective view of a standard tape cassette used in the tray type magnetic record player according to the present invention.

Fig. 6 is a perspective view of a small tape cassette used in a tray type magnetic record player according to the present invention.

Fig. 7 is a bottom view of a small tape cassette used in a tray type magnetic record player according to the present invention.

8 and 9 are partial side cross-sectional views for explaining the structure and operation of a cassette holder constituting a tray type magnetic record player according to the present invention;

Fig. 10 is a partial side cross-sectional view showing the configuration of a cassette holder constituting a tray type magnetic record player according to the present invention.

11 and 12 are side views for explaining the structure and operation of the cassette holder shown in FIG.

FIG. 13 is a side view of the X-shaped lever assembly of the cassette holder shown in FIG. 10; FIG.

Fig. 14 is a bottom view of Fig. 10 for explaining the configuration of the peripheral portion of the cassette holder.

Fig. 15 is a plan view of a cassette tray provided with a tape cassette lid unlocking device of the present invention.

16 is a plan view showing a partially enlarged tape cassette lid unlocking device according to the present invention;

Figure 17 is a plan view for explaining the operation of the tape cassette lid unlocking device according to the present invention.

18 and 19 show the unlocking piece constituting the tape cassette lead unlocking device according to the present invention;

18 is a plan view.

19 is a side view.

20 to 22 are side views for sequentially explaining the configuration and operation of the tape cassette lead unlocking device according to the present invention.

<Explanation of symbols for the main parts of the drawings>

10; Deck mechanism 20; Cassette housing

21,22; Side brackets 23; Top plate

24; Front plate 25,26; Guide rail

27; Synchronized axis 28,29; Synchronous gear

30; Cassette trays 31,32; Cam gear

33; Tray loading motor 34; Driven pulley

35; Driven gear pulley 36; belt

37; Relay gear 38,39; Guide member

40,41; Rack 50; Cassette holder

60; Lower base 61,62; Guide pin

63; Jamming 64,65; Support protrusion

70; Upper base 71; Hinge pin

72; Elastic member 73; Hang

74; Stopper 75; Front support

76,77; Bilateral support 80; Lower lever

81; Shaft pin 82; Pin Insert Groove

90; Detect Boss 91; incline

100; Elastic member 110; Guide lever

111; Guide pin 112; Receptionist

113; Support member 120; Lock release

121; Lock release lever 122; Horizontal section

123; Vertical section 124; Receptionist

125; Working projection 130; Elastic member

140; Main chassis 150; Stopper Brakit

As an embodiment for achieving the object of the present invention as described above, the deck mechanism is installed on the upper surface of the main chassis and the cassette housing is fixed to the cover, the cassette tray for receiving a small tape cassette in the cassette housing is linear reciprocating movement And a cassette holder included in the cassette tray, wherein the cassette holder includes a lower base supported by the cassette tray and an upper base rotatably coupled to the rear of the lower base. In the regenerator, a lock release piece coupled to the rear one side of the cassette holder to enable linear movement in the front and rear directions, and a lead lock portion of the small tape cassette provided at an inner edge of the lock release piece. A lock release lever formed with a lock release protrusion to move, It is connected to a predetermined portion of the lock release piece, the tension coil spring for resiliently supporting the lock release piece to receive the force toward the rear side at all times, is fixed to one side of the rear surface of the upper surface of the main chassis and the loading operation of the cassette tray is completed At the point of time, the lock release piece is moved forward to overcome the elasticity of the tension coil spring, so that the lock release protrusion of the lock release lever is configured as a stopper bracket for operating the lead lock portion of the small tape cassette. A tape cassette lead unlocking device of a record player is provided.

The lock release piece is formed at least one guide hole in which the guide pin of the cassette holder is inserted in the front and rear, respectively, characterized in that configured to be linearly moved along the guide pin.

One side of the lock release piece is characterized in that the pin is provided with a working projection in contact with the stopper bracket.

In addition, as another embodiment for achieving the object of the present invention, the deck mechanism is installed on the upper surface of the main chassis and the cassette housing is fixed to the cover, the cassette tray for receiving a small tape cassette in the cassette housing is linear reciprocating movement And a cassette holder included in the cassette tray, wherein the cassette holder includes a lower base supported by the cassette tray and an upper base rotatably coupled to the rear of the lower base. The lock release piece coupled to the rear one side of the cassette holder so as to be linearly moved forwards and backwards, and the lead lock portion of the small tape cassette provided on the inner edge of the lock release piece and moved to the inner end thereof. A lock release lever formed with a lock release protrusion, It is connected to a predetermined portion of the lock release piece, a tension coil spring for resiliently supporting the lock release piece to receive a force toward the rear side at all times, and fixed to one side of the rear surface of the upper surface of the main chassis, the loading operation of the cassette tray is completed. When the lock release piece is moved forward to overcome the elasticity of the tension coil spring, the lock release protrusion of the lock release lever and the stopper bracket for operating the lead lock portion of the small tape cassette, and the cassette holder is provided Provided is a tape cassette lead-locking releasing device for a tray type magnetic recording / playback apparatus comprising a support means for preventing the release lever from sagging.

The lock release piece is formed with at least one guide slot for inserting the guide pin of the cassette holder in the front and rear, respectively, characterized in that configured to be linearly moved along the guide pin.

The lock release piece is characterized in that the outer surface is provided with an operating projection in contact with the stopper bracket.

The supporting means may include a rotating member rotatably coupled to a predetermined surface of the lower base, a pressing member fixed to an upper surface of the rotating member and guided to a standard tape cassette, and elastic means for elastically supporting the rotating member. And a guide member interposed between the upper base and the lower base of the cassette holder and moved by the rotational operation of the rotation member and provided with a support member on one side thereof.

The guide member has a guide pin which is inserted into the pin insertion groove formed in the rotating member is fixed to one side of the lower surface, the guide hole is inserted into the guide pin fixed to the lower base is formed, it is configured to be able to move linearly in the front and rear direction It features.

The pressing member is characterized in that the inclined surface is formed to facilitate the mounting of the standard tape cassette.

According to the present invention as described above, there is an advantage that the lead locking state of the small tape cassette mounted on the cassette tray can be released more stably with a simpler configuration, and the reliability of the read locking operation of the small tape cassette is improved.

Hereinafter, the tape cassette lead-locking releasing device of the tray type magnetic recording player according to the present invention will be described according to the embodiment shown in the accompanying drawings.

First, referring to the basic configuration of the tray type magnetic recording and reproducing apparatus according to the present invention, as shown in Figs. 1 to 7, the cassette housing 20 is fixed to the upper portion of the deck mechanism 10, the cassette housing Cassette trays 30 that accommodate two types of tape cassettes C10 and C20 of different sizes to 20 are coupled to allow linear reciprocating movement.

Among the tape cassettes C10 and C20, the large tape cassette C10 is referred to as a 'standard tape cassette', and the small tape cassette C20 is referred to as a 'small tape cassette'. Shall be.

The cassette housing 20 has side brackets 21 and 22 which stand on both sides of the main chassis 11 and are fixed, and a top plate having both edges fixed to the upper surfaces of the side brackets 21 and 22, respectively. (23) and the front plate (24) which is fixed to the height of approximately 1/2 of the side brackets (21) and 22 below the front end of the side brackets (21) and (22).

Referring to the configuration for the movement of the cassette tray 30 in more detail, the cam gear 31, 32 is coupled to a predetermined portion of the side bracket (21, 22) rotatably, the one side The tray loading motor 33 is fixed to the rear end of the side bracket 21, and the power of the tray loading motor 31 is transmitted to the one cam gear 31 via the power transmission means.

The power transmission means includes a drive pulley 34 and a driven gear pulley 35 rotatably coupled to the outer side of one side side bracket 21, and the drive pulley 34 and the driven gear pulley 35. A relay gear 37 coupled to the belt 36 to be connected to the cam gear 31 and the driven gear pulley 35 so as to be rotatable to transfer the rotational force of the driven gear pulley 35 to the cam gear 31. ) Is included.

As the driven gear pulley 35 and the relay gear 37, small gears 35a and 37a are formed, respectively, the relay gear 37 meshes with the small gear 35a of the driven gear pulley 35, The cam gear 31 meshes with the small gear 37a of the relay gear 37 so that the cam gear 31 is rotated by the rotation of the driven gear pulley 35.

In addition, guide rails 25 and 26 are fixed to inner surfaces of the side brackets 21 and 22, respectively, and coupled to guide rails 25 and 26 to outer surfaces of the cassette tray 30. Guide members 38 and 39 for sliding motion are fixed to each other, and the racks 40 and 41 engaged with the cam gears 31 and 32 are fixed to both sides of the cassette tray 30, respectively. It is.

The inner side of the front plate 24 is supported so that the synchronizing shaft 27 is rotatable, and both side ends of the synchronizing shaft 27 are engaged with the cam gears 31 and 32. Are fixed respectively.

The cassette tray 30 has a cassette holder 50 for mounting a small tape cassette C20 or a small tape cassette C20.

As shown in FIGS. 8 and 9, the cassette holder 50 is divided into a lower base 60 and an upper base 70, and an upper base 70 at a rear side of the lower base 60. ) Is coupled to the hinge pin 71, the upper base 70 is rotated upward by a predetermined angle in a state that the cassette tray 30 is completely ejected.

That is, the rear ends of the upper base 70 and the lower base 60 are connected to an elastic member 72 such as a tension coil spring, so that the elastic member (except when the cassette tray 30 is completely ejected) The upper base 70 is maintained in close contact with the lower base 60 by the elastic force of the 72, and the catching portion 73 extends upward at the rear end of the upper base 70, and the cassette A stopper 74 is formed at one end of the top plate 23 of the housing 20 so that when the ejection operation of the cassette tray 30 is completed, the engaging portion 73 of the upper base 70 is moved to the top plate ( The upper base 70 is caught by the stopper 74 of 23 to overcome the elasticity of the elastic member 72 and is rotated upward with respect to the hinge pin 71.

The upper base 70 is provided with a front support part 75 and both side support parts 76 and 77 to facilitate the seating of the small tape cassette C20, and the front support part 75 and the both side support parts 76. 77 is rounded to a predetermined curvature.

The cassette holder 50 and its surrounding structure will be described in more detail. As shown in FIGS. 1 and 10 to 14, both side portions of the cassette holder 50 are provided on both sides of the bottom surface of the cassette tray 30. The fixed brackets 510 and 520 and the X-shaped lever assembly 530 fixed in the longitudinal direction are respectively connected, and the upper portion of the X-shaped lever assembly 530 and the cassette holder 50 are each provided with a first elastic member. 551 and a second elastic member 552, respectively, are elastically supported.

The X-shaped lever assembly 530 and the first and second elastic members 551 and 552 have the same structure on both the left and right sides of the cassette holder 50, and only one side will be shown for convenience.

The X-shaped lever assembly 530 is coupled to the one end is rotatably coupled to the fixing pin 511 of the fixed bracket 510, the other end is inserted into the guide hole 571 formed on the side of the lower base 60 A first elevating lever 533 provided with a guide pin 532 and one end thereof are rotatably coupled to a fixing pin 572 fixed to the side of the lower base 60, and a fixing bracket 510 is provided at the other end thereof. A guide pin 534 is inserted into the guide hole 512 formed on the side of the) is provided with a second elevating lever 536, the middle portion is connected to the first elevating lever 533 and the connecting pin 535, An elastic member 537 such as a tension coil spring for elastically connecting the first elevating lever 533 and the second elevating lever 536 is included.

It is preferable that the first elastic member 551 and the second elastic member 552 for elastically supporting the cassette holder 50 use a tension coil spring, and the first elastic member 551 and the second elastic member 551. The upper end of the elastic member 552 is connected to the fixing pin 511 of the fixing bracket 510 and the guide pin 534 of the second elevating lever 536, respectively, and the lower end of the elastic member 552 of the lower base 60 Lower surfaces are respectively connected to the operation pins 577 respectively fixed to the middle portions.

The first elastic member 551 and the second elastic member 552 are not essential components of the present invention, and the elastic member 537 connecting the first elevating lever 533 and the second elevating lever 536. If the tensile force of the rather large, it is not necessary to use the first elastic member 551 and the second elastic member 552.

In addition, the pressing lever 560 is rotatably coupled to a predetermined portion of the inner surface of the side brackets 21 and 22 so as to be rotatable by the shaft pins 312, and also to be rotatable to the side brackets 21 and 22. It is designed to lower the cassette holder 50 which has been loaded while being engaged with the cam gears 31 and 32 coupled thereto.

That is, the cam pins 561 inserted into the cam grooves 31a and 32a of the cam gears 31 and 32 are respectively fixed to one side of the outer surface of the pressing lever 560, and the cassette holder at the inner end thereof. Locking grooves 562 to which the operation pins 577 of the 50 are caught are formed, respectively.

On the other hand, the tape cassette lead unlocking device of the tray-type magnetic recording / playback apparatus according to the present invention, as shown in Figs. 15 to 19, is rotatable by the shaft pins 81 in the middle of the lower end of the lower base 60. A lower lever 80 coupled to one side and having a pin insertion groove 82 formed at one side thereof, and an inclined surface 91 fixed to an upper side of the upper surface of the lower lever 80 and guided to the standard tape cassette C10 A formed boss 90, an elastic member 100 such as a tension coil spring connected to and fixed to the lower lever 80 to elastically support the lower lever 80, and the upper base A guide lever 110 interposed between the 70 and the lower base 60 and moved by the rotation operation of the lower lever 80 and provided with a supporting member 113 on one side thereof, and the cassette holder 50 of the cassette holder 50. It is possible to move linearly in the front and rear direction on one side A lock release piece 120 having a lock release lever 121 coupled to the lead lock portion C21 of the small tape cassette C20 on one side thereof, and being connected and fixed to the lock release piece 120. Elastic lock member 130, such as a tension coil spring for supporting the lock release piece 120 in one direction and the rear of the main chassis 140, respectively, standing and fixed to the point at which the loading of the cassette tray 30 is completed The lock release piece 120 includes a stopper bracket 150 for allowing the lock release lever 121 to operate the lead lock portion C21 of the small tape cassette C20.

At the end of the lock release lever 121, a lock release protrusion 121a for moving the lead lock portion C21 of the small tape cassette C20 is formed.

The guide lever 110 is fixed to the guide pin 111 is inserted into the pin insertion groove 82 of the lower lever 80 on one side of the lower surface, guide pins respectively fixed to the front and rear both sides of the lower base (60) A guide hole 112 inserted into the 61 and 62 is formed to enable linear movement in the front-rear direction, and the supporting member 113 is provided at one side of the lock release piece 120. The locking release lever 121 is prevented from sagging downward during the movement of the.

At the rear end of the lower base 60, a locking protrusion 63 is formed to support the rear surface of the small tape cassette C20. Small tape cassettes C20 are formed at both sides of the middle of the lower base 60. Supporting projections 64 and 65 are formed to support the entire surface of the tape, and the small tape cassette C20 is easily settled.

The lock release pieces 120 are interposed between the upper base 70 and the lower base 60 of the cassette holder 50, respectively, and are bent to have a horizontal portion 122 and a vertical portion 123. It is.

Guide holes 124 for inserting the front and rear guide pins 78 and 79 of the upper base 70 are respectively formed on both front and rear sides of the horizontal portion 122, and the lock is released at one side of the upper surface. The lever 121 is fixed, and the actuating protrusion 125 which is caught by the stopper bracket 150 is formed at one side of the outer surface.

In the drawing, reference numeral 161 denotes a sensing switch for sensing the standard tape cassette C10, 162 illustrates a sensing switch for sensing the small tape cassette C20, and 163 shows a lid opening member.

Referring to the operation of the tape cassette lead unlocking device of the tray-type magnetic recording player according to the present invention configured as described above is as follows.

When the eject button (not shown) of the cassette tray 30 is operated for use of the small tape cassette C20 while the cassette tray 30 is stored inside the cassette housing 20, the eject button Electrical signals according to the operation are transmitted to the tray loading motor 33.

Subsequently, power is transmitted to the drive pulley 34 → belt 36 → driven gear pulley 35 → relay gear 37 → cam gear 31 by driving the tray loading motor 33 so that the cam gear ( 31 is rotated, and both the racks 40 and 41 of the cassette tray 30 are engaged with the cam gear 31 and the cam gear 32 on the other side, so that the cassette tray 30 is ejected forward. .

At this time, the guide rails 25 and 26 fixed to both side brackets 21 and 22 of the cassette housing 20 are guide members 38 and 39 fixed to both sides of the cassette tray 30. Are respectively inserted, and both the cam gears 31 and 32 are engaged with both synchronous gears 28 and 29 of the synchronous shaft 27 supported by the front plate 24, so that the cassette tray 30 Makes eject operations smoother and smoother.

As described above, when the ejection operation of the cassette tray 30 is completed, the engaging portion 73 formed at the rear end of the upper base 70 constituting the cassette holder 50 of the cassette tray 30 has a top plate ( Since it is caught by the stopper 74 of 23, the upper base 70 overcomes the elasticity of the elastic member 72 and rotates about the hinge pin 71 in the clockwise direction (see FIG. 9).

Accordingly, since the distal end portion of the upper base 70 is lifted upward, the small tape cassette C20 can be stored more easily.

That is, since the front support part 75 and the both side support parts 76 and 77 are lifted from the lower base 60 by the rotation operation of the upper base 70, when the small tape cassette C20 is received, the small tape The front and both sides of the cassette C20 are received at the correct position of the cassette holder 50 while being guided by the front support portion 75 and the support protrusions 64 and 65 and the side support portions 76 and 77. The rear surface of the small tape cassette C20 is supported by the locking projection 63 of the lower base 60 to hold the small tape cassette C20 as a whole.

At this time, since the front support portion 75 and the both side support portions 76 and 77 are rounded to a predetermined curvature, the small tape cassette C20 can be more easily stored.

Thus, when the small tape cassette C20 is accommodated in the cassette holder 50 of the cassette tray 30, as shown in FIG. 20, the lead lock part C21 of the small tape cassette C20 (FIG. 20 is shown in FIG. 20). (Not shown) to maintain a predetermined distance d from the lock release protrusion 121a of the lock release lever 121 fixed to the lock release piece 120, so that the lead locking state of the small tape cassette C20 is maintained. Is valid.

As described above, when the small tape cassette C20 is accommodated in the cassette holder 50 of the cassette tray 30, the small tape cassette C20 presses the sensing switch 162 to turn on the contact. Accordingly, the electrical signal of the sensing switch 162 is transmitted to the tray loading motor 33 to drive the tray loading motor 33 in the reverse direction.

According to the reverse driving of the tray loading motor 33, the power is transmitted to the driving pulley 34 → belt 36 → driven gear pulley 35 → relay gear 37 → cam gear 31 and the cam gear ( 31) is rotated in the opposite direction, so that the cassette tray 30 on which the small tape cassette C20 is seated is loaded into the cassette housing 20. At this time, the loading of the cassette tray 30 is completed. At this point in time, the actuating protrusion 125 of the lock release piece 120 comes into contact with the stopper bracket 150. Thus, as shown in FIGS. 17 and 21, the lock release piece 120 includes the elastic member 130. The lock release protrusion 121a of the lock release lever 121 provided in the lock release piece 120 pushes the lead lock portion C21 of the small tape cassette C20 to overcome the elasticity of the small tape cassette C20. ) Will release the lead lock state.

Subsequently, as shown in FIG. 22, the loading operation of the cassette tray 30 is completed, and the cassette holder 50 is lowered by a normal action, so that it is fixed to a predetermined portion of the main chassis 140. The lid C22 of the small tape cassette C20 is caught and opened by the lead opening member 163.

As described above, when the lock release piece 120 moves according to the use of the small tape cassette C20, the lock release lever 121 of the lock release piece 120 is provided at one side of the guide lever 110. Since it is located directly above the support member 113, the sag of the lock release lever 121 is prevented.

As described above, the tape cassette lid unlocking device of the tray-type magnetic recording / playback apparatus according to the present invention is provided with a deck mechanism on the upper surface of the main chassis, and a cassette housing is covered and fixed, and a small tape cassette is inserted into the cassette housing. The receiving cassette tray is coupled to allow linear reciprocating movement, and the cassette tray includes a cassette holder, and the cassette holder includes a lower base supported by the cassette tray and an upper portion rotatably coupled to the rear of the lower base. Assuming a tray-type magnetic recording / reproducing device including a base, a lock release piece coupled to the rear one side of the cassette holder so as to be linearly moved forward and backward, and provided at an inner edge of the lock release piece At the end, the lead lock portion of the small tape cassette A lock release lever formed with a lock release protrusion for moving, a tension coil spring connected to a predetermined portion of the lock release piece to elastically support the lock release piece to receive a force toward the rear side at all times, and an upper surface rear of the main chassis; The lock release piece of the lock release piece operates the lead lock portion of the small tape cassette by being fixed to one side and moving the lock release piece forward while overcoming the elasticity of the tension coil spring when the loading operation of the cassette tray is completed. The stopper bracket makes it possible to more stably release the lead locking state of the small tape cassette having a relatively small size mounted on the cassette tray in a simpler configuration, and to more reliably release the lead of the tape cassette. Such as ensuring the reliability of have.

Claims (9)

The deck mechanism is installed on the upper surface of the main chassis, and the cassette housing is fixedly fixed, the cassette tray for receiving the small tape cassette is coupled to the cassette housing for linear reciprocating movement, and the cassette tray includes the cassette holder. The cassette holder may include a lower base supported by the cassette tray and an upper base rotatably coupled to a rear of the lower base. A lock release piece coupled to the rear one side of the cassette holder to enable linear movement in the front and rear directions; A lock release lever provided at an inner edge of the lock release piece and having a lock release protrusion for moving a lead lock portion formed at one side of a lower surface of the small tape cassette at an inner end thereof; A tension coil spring connected to a predetermined portion of the lock release piece to elastically support the lock release piece so as to receive a force toward the rear side at all times; The lock release protrusion of the lock release piece is moved to the front of the lock release piece by moving the lock release piece toward the front of the tension coil spring when the loading operation of the cassette tray is completed and fixed to one side of the rear surface of the main chassis. A tape cassette lead-locking releasing device for a tray type magnetic record player, characterized in that it comprises a stopper bracket for operating the lead lock portion of the tray. The method of claim 1, wherein the lock release piece is formed at least one guide hole for inserting the guide pin of the cassette holder in the front and rear, respectively, tray type magnetic, characterized in that configured to be linearly moved along the guide pin Tape cassette lead unlocking device of a record player. 3. The tape cassette lead unlocking device of a tray type magnetic recording / playback apparatus according to claim 2, wherein a pin-shaped actuating protrusion is provided on one side of the lock release piece in contact with the stopper bracket. The deck mechanism is installed on the upper surface of the main chassis, and the cassette housing is fixedly fixed, the cassette tray for receiving the small tape cassette is coupled to the cassette housing for linear reciprocating movement, and the cassette tray includes the cassette holder. The cassette holder may include a lower base supported by the cassette tray and an upper base rotatably coupled to a rear of the lower base. A lock release piece coupled to the rear one side of the cassette holder to enable linear movement in the front and rear directions; A lock release lever provided at an inner edge of the lock release piece and having a lock release protrusion for moving a lead lock portion formed at one side of a lower surface of the small tape cassette at an inner end thereof; A tension coil spring connected to a predetermined portion of the lock release piece to elastically support the lock release piece so as to receive a force toward the rear side at all times; The lock release protrusion of the lock release lever is moved to the front of the lock release lever by fixing the lock release piece toward the front of the tension coil spring at the time when the loading operation of the cassette tray is completed. A stopper bracket for operating the lid lock portion of the cassette, Tape cassette lead unlocking device of the tray type magnetic recording and reproducing device, characterized in that it comprises a support means provided in the cassette holder to prevent the locking phenomenon of the lock release lever. 4. The tray-type magnetic strip according to claim 3, wherein the lock release piece is formed so that at least one guide hole into which the guide pin of the cassette holder is inserted in the front and rear directions is formed, and is linearly movable along the guide pin. Tape cassette lead unlocking device of a record player. 4. The tape cassette lid unlocking device of claim 3, wherein the lock release piece is provided with an actuating protrusion contacting the stopper bracket on an outer surface thereof. The method of claim 2, wherein the support means is a rotating member which is rotatably coupled to a predetermined portion of the lower base of the lower base, a pressing member fixed to the upper surface of the rotating member and guided to a standard tape cassette, and the rotating member elastically And a guide member interposed between the upper and lower bases of the cassette holder, the guide member being moved by the rotational operation of the rotating member and provided with a support member at one side of the cassette. Tape cassette lead unlocking device for a magnetic recording player. According to claim 7, The guide member is fixed to the guide pin is inserted into the pin insertion groove formed in the rotating member on one side of the lower surface, the guide hole is inserted into the guide pin fixed to the lower base is formed, straight in the front and rear direction A tape cassette lead unlocking device for a tray type magnetic recording player, characterized in that configured to be movable. 8. The tape cassette lid unlocking apparatus of claim 7, wherein the pressing member is formed with an inclined surface so as to easily seat the standard tape cassette.

Images