KR100260933B1 - Apparatus for locking release of tape cassette lid of tray type tape recorder - Google Patents

Abstract

PURPOSE: A cassette holder installing device of a tray manner magnetic recording player is provided to stably release a lead locking state of a standard tape cassette, and to improve a reliability of a lead locking operation. CONSTITUTION: Lock release flaps(80,90) are composed of lock release protuberance parts(81,91). Lock release protuberance parts(81,91) are selectively in contact with lead lock parts which are formed at lower both sides of a standard tape cassette. Tension coil springs are installed at determined locations of the lock release flaps(80,90), and elastically support the lock release flaps(80,90) in a rear direction. Stopper brackets(110) are fixed to rear both sides of a main chassis upper side, and move the lock release flaps(80,90) in a front direction at a completion point of a loading operation, then operate the lead lock parts by the lock release protuberance parts(81,91).

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 recorder such as a digital video cassette recorder (D-VCR), and more particularly, to a lead locking state of a standard tape cassette having a relatively large size mounted on a cassette tray in a simpler configuration. A tape cassette lead unlocking device for a tray type magnetic record player capable of stably releasing and improving reliability of a lead locking operation of a standard tape cassette.

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 recording player capable of more stably releasing the lead locking state of a standard tape cassette having a relatively large 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 bottom view of a standard tape cassette used in a tray type magnetic record player according to the present invention.

7 and 8 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. 9 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.

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

12 is a side view of the X-shaped lever assembly of the cassette holder shown in FIG. 9;

Fig. 13 is a bottom view of Fig. 9 for explaining the configuration of the peripheral portion of the cassette holder.

Fig. 14 is a plan view showing an ejected state of a cassette tray provided with a tape cassette lid unlocking device of the present invention.

Fig. 15 is a partially cutaway plan view showing a loading state of a cassette tray provided with a tape cassette lid unlocking device according to the present invention;

16 and 17 show the unlocking piece constituting the tape cassette lead unlocking device according to the present invention;

16 is a plan view.

17 is a side view.

18 to 20 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 70; Upper base

71; Hinge pins 72; Elastic member

73; Locking portion 74; stopper

80,90; Unlocking piece 81,91; Lock release

82; Horizontal section 83; Vertical section

84; Announcement 85; Working turning

100; Elastic member 110; Stopper Brakit

120; Main chassis 133; Lead opening member

In order to achieve 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 the tape cassette in the cassette housing is coupled to enable linear reciprocating movement And a cassette holder 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. A lock release piece which is coupled to both rear side edges of the cassette holder so as to be linearly moved forward and backward and has lock release protrusions selectively contacting lead lock portions formed on both sides of the lower surface of the standard tape cassette at predetermined portions of the upper surface; And predetermined portions of the lock release pieces, respectively. An elastic member which is connected and installed to elastically support the lock release piece so as to receive a force toward the rear side at all times, and is fixed to both sides of the rear surface of the upper surface of the main chassis and is released at the time when the loading operation of the cassette tray is completed. The tape cassette lead unlocking release of the tray type magnetic recording player, characterized in that the lock release protrusion of the lock release piece is composed of a stopper bracket for operating the lead lock portion of the standard tape cassette by moving the piece toward the front while overcoming the elasticity of the elastic member. An apparatus 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.

According to the present invention, it is possible to stably release the lead locking state of a standard tape cassette having a relatively large size mounted on the cassette tray with a simpler configuration, and to more reliably release the lead of the tape cassette. There are advantages such as ensuring reliability.

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, looking at the basic configuration of the tray-type magnetic recording player according to the present invention, as shown in Figure 1 to Figure 6, the cassette housing 20 is fixed to the upper portion of the deck mechanism 10, the cassette housing Cassette tray 30, which accommodates two types of tape cassettes C10 of different sizes, is coupled to 20 to allow linear reciprocating movement.

Among the tape cassettes C10, a large tape cassette C10 is referred to as a 'standard tape cassette', and a small tape cassette (not shown) is referred to as a 'small tape cassette'. do.

The cassette housing 20 has side brackets 21 and 22 which stand on both sides of the main chassis 120 and are fixed, and a top plate having both edges fixed to an upper surface 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 includes a cassette holder 50 for mounting a standard tape cassette C10 or a small tape cassette.

As shown in FIGS. 7 and 8, 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 cassette holder 50 and its surrounding structure will be described in more detail. As shown in FIGS. 1 and 9 to 13, 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 player according to the present invention, as shown in Figs. 14 to 17, is coupled to both rear sides of the cassette holder 50 so as to enable linear movement in the front-rear direction. Lock release pieces (80) (90) and (90), each of which has a lock release protrusion (81) (91) formed at an upper surface thereof and in contact with both side lead lock portions (C11) (C11) of the standard tape cassette (C10). (80) and (90) are fixed to the elastic member 100, such as a tension coil spring for supporting the lock release pieces (80) and (90) in one direction and the rear and both sides of the main chassis 120, respectively. When the loading of the cassette tray 30 is completed, the lock release pieces 80 and 90 are moved so that the lock release protrusions 81 and 91 become the lead lock portions C11 and C11 of the standard tape cassette C10. Stopper bracket (110) to operate.

The lock release pieces 80 and 90, the elastic member 100 and the stopper bracket 110 is configured symmetrically bar, only one side configuration will be shown for better understanding.

The lock release pieces 80 and 90 are interposed between the upper base 70 and the lower base 60 of the cassette holder 50, respectively, and as shown in FIGS. 16 and 17, the horizontal portion ( It has a structure bent so as to have 82 and the vertical part 83. FIG.

Guide holes 84 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 82, and the lock release protrusions are formed in the middle of the upper surface. 81 is formed, and the operation protrusion 85 is applied to the stopper bracket 110 on one side of the outer surface, respectively.

In the figure, reference numeral 131 denotes a sensing switch for sensing the standard tape cassette C10, 132 illustrates a sensing switch for sensing the small tape cassette, and 133 of FIGS. 18 to 20 show lead opening members, respectively.

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 standard tape cassette C10 with the cassette tray 30 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 a clockwise direction (see FIG. 8).

Accordingly, since the distal end portion of the upper base 70 is lifted upward, the standard tape cassette C10 can be stored more easily.

When the standard tape cassette C10 is stored in the cassette holder 50 of the cassette tray 30, as shown in Fig. 18, the lead lock portions C11 and C11 of the standard tape cassette C10 (Fig. 18). The lock release protrusions 81 and 91 (only the lock release protrusion 81 on one side) of the lock release pieces 80 and 90 are maintained at a predetermined distance d. Therefore, the read locking state of the standard tape cassette C10 is valid.

As described above, when the standard tape cassette C10 is accommodated in the cassette holder 50 of the cassette tray 30, the standard tape cassette C10 presses the sensing switch 131 so that the contact is turned on. Accordingly, the electrical signal of the sensing switch 131 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 standard tape cassette C10 is seated is loaded into the cassette housing 20. At this time, the loading of the cassette tray 30 is completed. 15 and 19, each of the actuating projections 85 of the lock release pieces 80 and 90 comes into contact with the stopper bracket 110 of the main chassis 120, thus releasing the lock. The pieces 80, 90 are pushed forward to overcome the elasticity of the elastic member 100, and the lock release protrusions 81, 91 formed on the lock release pieces 80, 90 are both leads of the standard tape cassette C10. The lock portions C11 and C11 are pushed to release the lead lock state of the standard tape cassette C10. .

After that, the loading operation of the cassette tray 30 is completed, and the cassette holder 50 is lowered by a normal action. As shown in FIG. 20, the cassette tray 30 is fixed to a predetermined portion of the main chassis 120. The lid C12 of the standard tape cassette C10 is caught by the lead opening member 133 thus opened.

As described above, in the tape cassette lead unlocking device of the tray-type magnetic recording / playback apparatus according to the present invention, a deck mechanism is provided on the upper surface of the main chassis, the cassette housing is fixedly covered, and the tape cassette is accommodated in the cassette housing. The cassette tray is coupled to enable a linear reciprocating movement, the cassette tray includes a cassette holder, the cassette holder is a lower base supported on the cassette tray, and an upper base rotatably coupled to the rear of the lower base On the premise that the tray-type magnetic recording and reproducing apparatus includes a lead lock unit coupled to both rear sides of the cassette holder so as to be linearly moved forward and backward and formed on both sides of the lower surface of the standard tape cassette at a predetermined portion of the upper surface. Optional unlocking stone And lock coil pieces each connected to a predetermined portion of the lock release piece, each of which is provided with a tension coil spring for elastically supporting the lock release piece so as to receive a force toward the rear side at all times, and on both sides of the upper surface rear portion of the main chassis. A stopper bracket for fixing the lead release portions of the standard tape cassettes by fixing the lock release pieces of the lock release pieces by moving the lock release pieces forward while overcoming the elasticity of the elastic member at the time when the loading operation of the cassette tray is completed. In this configuration, the lead locking state of the standard tape cassette having a relatively large size mounted on the cassette tray can be released more stably, and the operation of releasing the lead of the tape cassette can be more surely performed. It is effective to secure.

Claims (3)

The deck mechanism is installed on the upper surface of the main chassis, and the cassette housing is fixedly fixed, the cassette tray for accommodating the standard 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. The lock release piece is coupled to both sides of the rear side of the cassette holder so as to be linearly moved in the forward and rearward directions, and the lock release protrusions are formed in contact with lead lock portions formed on both sides of the lower surface of the standard tape cassette at predetermined portions of the upper surface, respectively. and, A tension coil spring connected to a predetermined portion of the lock release piece, and elastically supporting the lock release piece so as to receive a force toward the rear side at all times; The lock release piece of the lock release piece is fixed to both sides of the upper surface rear side of the main chassis and moved forward to overcome the elasticity of the tension coil spring when the loading operation of the cassette tray is completed. 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 portions of a cassette. 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.

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