KR200160653Y1 - Safety device for door of video cassette recorder - Google Patents

Abstract

The present invention discloses a door safety device of a video cassette recorder.

According to an aspect of the present invention, there is provided a front door device of a VCR, comprising: a guide rib provided on a rear surface of a front panel by integrally forming a hinge pin having a central axis in a vertical direction; The hinge of the guide rib is provided with a front projection contacting the cassette tape inserted through the door, a locking projection located at the rear of the door to prevent rotation of the door, and a rear projection contacting the cassette tape discharged from the deck to form an inclined surface. Door lockers mounted on pins so as to be rotatably mounted in opposite directions about the doors on both sides of the cassette tape entrance and exit of the front panel; A spring device for maintaining a constant position of the door locker; characterized in that consisting of.

Therefore, according to the present invention it is possible to reduce the economic burden of the user by preventing the failure caused by the input of objects other than the cassette tape, it is effective in preventing the safety accident by children by improving the operation safety of the front door.

Description

Door safety device for video cassette recorders

The present invention relates to a video cassette recorder (hereinafter, abbreviated as VCR), and more particularly, in a front loading VCR or a TVCR in which a TV and a VCR are integrally combined, a cassette tape. The present invention relates to a door safety device of a VCR which prevents other objects from entering through the door, thereby reducing mechanical failure and preventing safety accidents that are likely to occur by children.

A VCR is a device that converts video signals from the outside into magnetic signals through a head and records them on a tape or plays back the contents already recorded on the tape. The VCR is integrated with the TV to facilitate installation, transportation, and use.

In addition, deck mechanism is a main component of a VCR such as a front loading assembly for mounting and initializing a cassette tape and a drum assembly for recording or reproducing a signal in contact with the tape. The magnetic tape for recording and reproducing video and audio information is embedded in the cassette and inserted or discharged through the front door mounted on the front cover of the VCR or the mask front side of the TVCR. It is structured.

1 illustrates a mounting structure of a front door 2 in a VCR or a TVCR. Door bosses 3 are provided at both upper sides of the door 2, and a door guide behind the front panel 1 is provided. : It is fitted in 4). Accordingly, the door 2 has a structure that is rotated around the door boss 3, wherein the door spring 5 prevents the door 2 from being separated from the door guide 4 and at the same time (2) acts in a closed state at all times. In addition, a guide piece 6 is formed at one side of the door 2 so that an end portion of a door opening lever for activating the door 2 on the inner circumferential surface thereof is caught and positioned.

When the front door 2 inserts the cassette tape into the deck 7, when the cassette tape is pushed in from the front of the door 2, the door 2 rotates to the rear side around the door boss 3 and the cassette is moved. The tape door is opened.

On the other hand, when the inserted cassette tape is taken out, the cassette tape is discharged by the operation of the front loading apparatus and the door opening lever 20 opens the front door 2 together with the cassette tape. Therefore, hereinafter, the configuration and operation of the front loading apparatus will be described with reference to FIGS. 2A and 2B.

As shown, the base plate 8 of the deck 7 is equipped with a loading motor 9, and the rotational force of the motor 9 is connected to the worm gear 10 and connected thereto. It is decelerated by the connect gear 11 and transmitted to the cam gear 12. In addition, a front loading rack 13 is installed below the base plate 8, and one side thereof protrudes to an upper surface of the base plate 8 and is connected to the cam gear 12. Accordingly, the rotational force of the motor 9 is converted into the front and rear reciprocating motion of the front loading rack 13 via the respective gears 10, 11, 12.

The front loading device comprises a front loading bracket 14, 14 'coupled to a top plate (not shown) on the upper surface of the base plate 8, and a cassette holder 15 mounted therebetween. The cassette holder 15 is operated by the front loading levers 17 and 17 'mounted on the sides of the respective front loading brackets 14 and 14' to draw out or draw in the cassettes, and the front loading lever 17 Is connected to the front loading rack 13 to have a structure driven by the loading motor 9.

Therefore, when the loading motor 9 rotates, the driving force of the motor 9 is transmitted to the front loading lever 17 through the gears 10, 11, 12 and the front loading rack 13, respectively. : The front and rear loading levers 17 and 17 'on both sides are rotated, respectively, and the cassette holder 15 fitted into the guide grooves 19 and 19' of the respective front loading brackets 14 and 14 'is rotated. ) Bosses on both sides are transferred along the path of the guide grooves 19 and 19 'by the front loading levers 17 and 17' so that the cassette is withdrawn or withdrawn, and at the same time the loading motor The rotational force of 9 causes the door 2 to open by rotating the door opening lever 20 connected to the front loading lever 17 'to push up the guide piece 6.

However, as described above, the conventional front door is operated by a structure that is pushed open from the outside, so that it is easy to cause a failure when an object other than a cassette tape is inserted, and there is room for children to put their hands inside the door. There was a risk of a safety accident.

The present invention has been devised to solve the conventional problems as described above, and is positioned to the rear side of the door to prevent the door from being pushed open, while acting to open the door by inserting the cassette tape, thereby providing a cassette tape. It is an object of the present invention to provide a door safety device that blocks other objects from entering the VCR through the front door.

The present invention for achieving the above object is, in the front door device of the VCR formed by opening the door to the cassette tape entrance of the front panel by rotating to the rear side, integrally formed with a hinge pin having a central axis in the vertical direction A guide rib provided at the rear of the front panel; The hinge of the guide rib is provided with a front projection contacting the cassette tape inserted through the door, a locking projection located at the rear of the door to prevent rotation of the door, and a rear projection contacting the cassette tape discharged from the deck to form an inclined surface. Door lockers mounted on pins so as to be rotatably mounted in opposite directions about the doors on both sides of the cassette tape entrance and exit of the front panel; A spring device for maintaining a constant position of the door locker; characterized in that consisting of.

Therefore, when the cassette tape is inserted, the door can be opened by rotating the door locker by pushing the front protrusion of the door locker while the cassette tape is progressing, and even when the tape running is completed, the cassette tape is discharged by conveying the cassette holder. As the door locker is rotated by pushing the rear protrusion of the door locker, the door is rotated and opened by the operation of the door opening lever.

However, when an object other than cassette tape is put into the door or a child pushes the door by hand, the door rotation is prevented by the locking jaw of the door locker, so that the door no longer opens. Prevents accidents.

1 is a rear view showing a mounting structure of a front door in a conventional VCR,

2a and 2b is a left, right side view of the deck showing the operation structure of the front door,

3 is a plan view showing a structure of a door safety device according to the present invention;

Figure 4 is a perspective view showing the structure of the door safety device according to the present invention.

<Description of the code | symbol about the principal part of drawing>

30: Front pannel 31, 32: Guide rib

33: guide pin 40: front door

41: door boss 42, 60: spring

50: door locker 51,53: front and rear protrusions (of the door locker)

52: Jam jaw (of door locker) 70: Cassette tape

Such a characteristic configuration and the resulting effects of the present invention will become more apparent from the detailed description of the invention with reference to the accompanying drawings to be described later.

3 and 4 show a preferred embodiment of the door safety device according to the present invention, the front door 40 is the door boss 41 of the upper both sides to the door guide (not shown) in the rear of the front panel 30 By being fitted together with the door spring 42, the door boss 41 is pivotally mounted, and both sides of the cassette tape entrance and exit are respectively rotated in opposite directions about the door 40 by the cassette tape 70. The door locker 50 is provided so as to. Here, since the mounting structure of the door 40 to be mounted on the front panel 30 is the same as in the prior art, the description is omitted with reference to the description of the prior art shown in FIG.

On the other hand, the door locker 50 in the present invention is provided on both sides of the cassette tape entrance and exit of the front panel 30, the front projection 51 in contact with the cassette tape 70 is inserted through the door 40, the door Located on the rear side of the 40 to stop the rotation of the door (40) and the rear projections 53 in contact with the cassette tape 70 which is conveyed and discharged through the cassette holder (not shown) to form an inclined surface 53 Are provided at both sides of the cassette tape entrance and exit of the front panel 30 with respect to the door 40.

According to the mounting structure according to this, guide ribs 32 having integrally formed hinge pins 33 having a central axis in the vertical direction are provided on both sides of the cassette tape entrance and exit at the rear surface of the front panel 30, and the hinge pins are provided. As one side of the door locker 50 is coupled to the door 33, the door locker 50 is rotatable about the hinge pin 33. In addition, a coil spring 60 is attached to one side of the door locker 50 so that elasticity acts in the opposite direction of rotation, and the opposite side of the coil spring 60 is a guide rib protruding from the rear surface of the front panel 30. By being supported by 31, the door locker 50 is held at the rear side of the door 40 by the spring 60, thereby preventing rotation of the door 40. In the embodiment, the mounting structure and the action of the door locker 50 and the spring 60 on both sides is the same except for the rotation direction of the door locker 50 is configured in all parts.

Therefore, the operation of the door safety device according to the present invention is made as follows.

When the cassette tape 70 is inserted into the deck, when the cassette tape 70 pushes the door 40, the door 40 pushes the front protrusion 51 of the door locker 50 again to open the door locker 50. It rotates, the cassette tape 70 is continuously progressed thereby to maintain the rotated state of the door locker 50, the door 40 can be rotated. As the cassette tape 70 is inserted into the deck in this manner, the door 40 is first rotated and closed by the door spring 42, and the cassette tape 70 passes through the rear protrusion 53 of the door locker 50. At the same time, the door locker 50 is rotated by the elasticity of the coil spring 60 to be positioned at the maximum position. Then, when the running of the tape is completed, the cassette tape 70 is discharged by the transfer of the cassette holder while pushing the inclined surface of the rear protrusion 53 of the door locker 50 to rotate the door locker 50 and simultaneously open the door. The door 40 is rotated and opened by the operation of the lever.

However, when an object other than the cassette tape 70 is inserted into the door 40 or a child pushes the door 40 by hand, the door 40 pushes the front protrusion 51 of the door locker 50 by pushing the door 40. Although the door locker 50 may be temporarily rotated, the door locker 50 may not be continuously pushed while passing between the front protrusion 51 and the locking jaw 52 of the door locker 50. Since the rotation is not continuously maintained, further rotation is blocked by the locking jaw 52 of the door locker 50, so that the door 40 is not opened.

On the other hand, while the present invention has been described in connection with the preferred embodiment, those skilled in the art will understand that various changes may be made without departing from the spirit of the present invention and the appended claims.

As described above, according to the door safety device according to the present invention, when the cassette tape is inserted or discharged, the door locker which prevents the rotation of the door by the cassette tape is rotated so that the door can be opened, but not the cassette tape. When another object is put into the door or a child pushes the door by hand, the door locker prevents the door from rotating and the door does not open.

Therefore, it is possible to reduce the economic burden of the user by preventing the failure due to the introduction of foreign matters, there is an effect of preventing the safety accident by children by improving the operation safety of the front door.

Claims (1)

In the front door device of the VCR, the door is mounted to the cassette tape entrance and exit of the front panel by rotating backward. A guide rib 32 formed on the rear surface of the front panel 30 by integrally forming a hinge pin 33 having a central axis in the vertical direction; In the front projection (51) in contact with the cassette tape 70 is inserted through the door 40, the locking projection (52) located on the rear side of the door 40 to prevent the rotation of the door 40, and the deck The rear projection 53 is formed in contact with the cassette tape 70 to be discharged, and the rear projection 53 is fitted to the hinge pin 33 of the guide rib 32 so that the doors are formed on both sides of the cassette tape inlet and outlet of the front panel 30. 40 and a door locker 50 rotatably mounted in opposite directions, respectively, Door lock device, characterized in that consisting of a spring device 60 for maintaining a constant position of the door locker (50).