JP3106756U - Television with disc playback function and disc playback device - Google Patents

Abstract

Provided are a television with a disk reproducing function and a disk reproducing apparatus in which a spring for urging a rotary door does not easily fall off and can be easily assembled.
In the present invention, a torsion spring 26 is held by a spring holding portion 24 provided separately from rotating shafts 23 and 23 for rotatably connecting a casing 12 and a rotary door. Therefore, it is possible to prevent the torsion spring 26 from falling off even if the rotating shafts 23 are broken. Further, the torsion spring 26 is inserted into the substantially cylindrical spring holding portion 24 and is prevented from being detached by a retaining protrusion 24 a protruding from the tip of the spring holding portion 24. Accordingly, it is possible to make it difficult for the torsion spring 26 to fall off the spring holding portion 24.
[Selection] Figure 9

Description

  The present invention relates to a television with a disc playback function and a disc playback apparatus in which a disc tray on which a disc is placed is slidably provided.

2. Description of the Related Art Conventionally, as this type of disk reproducing apparatus, an apparatus in which a rotary door is attached to an opening for sliding a disk tray is known (for example, see Patent Document 1).
In such a configuration, the rotary door is rotatably supported with respect to the casing, and a spring is attached to the rotary shaft. By doing so, the rotary door can always be urged in the closing direction, so that the opening can be closed except when the disc tray slides forward. It was. Therefore, it has a good appearance, and dust and the like can be prevented from entering the disk reproducing section.
Japanese Utility Model Publication No. 5-21395

In the disk reproducing apparatus described above, the rotary door is rotatably connected to the housing via a rotating shaft, and the spring is attached to the rotating shaft. When an unreasonable load is applied to the rotary door and the rotary door is detached from the casing, the rotation shaft is broken or deformed, so that the connection between the rotary door and the casing is released. At this time, the spring attached to the rotating shaft sometimes falls off the rotating shaft along with breakage or deformation of the rotating shaft. Then, there is a problem that the dropped spring falls into the housing and is difficult to take out. Furthermore, there is a problem in that an electrical failure such as a short circuit occurs when the spring that has fallen contacts an electronic component or the like provided in the housing.
Further, when the rotary door is attached to the casing, there is also a problem that it is difficult to assemble because the rotary shaft must be attached to the casing while attaching a spring to the rotary shaft.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a television with a disk reproducing function and a disk reproducing apparatus in which a spring for urging a rotary door is less likely to fall off and can be easily assembled.

In order to achieve the above object, a device according to claim 1 is provided with a housing provided with an opening for projecting a disk tray sliding from the inside to the outside, and a rotary door that opens and closes the opening by rotating. In a television with a disc playback function comprising:
The rotary door includes a substantially plate-like door plate that closes the opening, a pair of arms that are erected from both ends of the door plate toward the inside of the housing, and a erected from each of the arms. A pair of rotating shafts respectively supported by a pair of bearings provided in the housing, a columnar spring holding portion formed on at least one of the arms, and the spring holding portion at the tip of the spring holding portion. A retaining protrusion projecting in the radial direction of the portion, and the spring holding portion is inserted through the inside of the coil portion, and one end extending in a substantially tangential direction from the coil portion is supported by the rotary door, Similarly, the other end extended from the coil portion in a substantially tangential direction is supported by the casing, so that the door is closed in the direction in which the door plate closes the opening with respect to the casing. With a torsion spring for biasing That it is constituted.

  2. The device according to claim 1, wherein the housing is provided with a disk tray, and the disk tray slides from the inside of the housing and protrudes to the outside through an opening provided in the housing. To do. A rotary door is provided, and the opening is opened and closed by rotating the rotary door. The pivotable door is provided with a substantially plate-like door plate capable of closing the opening at a predetermined pivot position, and the door plate is pressed by the disc tray that slides outside the casing. The A pair of arms are erected from both ends of the door plate toward the inside of the housing, and a pair of rotating shafts are erected from each of the same pair of arms. The pair of pivot shafts are supported by a pair of bearings formed inside the casing, so that the rotary door can be pivotably connected to the casing.

  Furthermore, a columnar spring holding portion is formed on at least one of the arms. At the tip of the spring holding part, a retaining protrusion is provided in the radial direction of the spring holding part. A torsion spring comprising a coil portion and two ends extending in a substantially tangential direction from the coil portion is provided. The torsion spring is held by the rotary door by inserting the spring holding portion inside the coil portion. One end extending in a substantially tangential direction from the coil portion is supported by the rotary door. On the other hand, the other end is supported by the casing. Thus, the urging force of the torsion spring can be applied between the rotary door and the housing, and the urging force applies the rotating door in the direction in which the door plate closes the opening. You can

  With this configuration, since the torsion spring can be held on the rotary door by a mechanism different from the rotation shaft, the torsion spring can be prevented from dropping even when the rotation shaft is damaged. Moreover, since the bearing of the rotating shaft and the attachment of the torsion spring can be performed independently, workability at the time of assembly is good.

Further, the invention according to claim 2 is a disc comprising a housing provided with an opening for projecting a disc tray sliding from the inside to the outside, and a pivoting door for opening and closing the opening by pivoting. In the playback device,
The rotary door includes a substantially plate-like door plate that closes the opening, a pair of arms erected from the door plate, and a pair of arms erected from each of the arms and provided inside the housing A pair of pivot shafts respectively supported by the bearings, a spring holding portion formed on at least one of the arms, and held by the spring holding portion, one end of which is supported by the rotary door and the other end Is supported by the casing, and includes a spring that biases the rotary door in a predetermined direction with respect to the casing.

  In the invention of claim 2 configured as described above, the housing is provided with a disk tray, the disk tray slides from the inside of the housing, and protrudes to the outside through an opening provided in the housing. To do. A rotary door is provided, and the opening is opened and closed by rotating the rotary door. The rotational door is provided with a substantially plate-like door plate that can close the opening at a predetermined rotational position. A pair of arms is erected from the door plate, and a pair of rotating shafts are erected from each of the same pair of arms. Then, by allowing the same pair of pivot shafts to be supported by a pair of bearings formed inside the casing, the rotary door can be pivotably connected to the casing.

  Furthermore, a columnar spring holding portion is formed on at least one of the arms, and a spring is held in the spring holding portion. One end of the spring is supported by the rotating door, and the other end is supported by the housing. Accordingly, the biasing force of the spring can be applied between the rotary door and the housing, and the rotary door is biased in the direction in which the door plate closes the opening by the biasing force. can do.

  Furthermore, in the invention according to claim 3, the door plate of the rotary door is urged so as to close the opening by the spring, and the disk advances from the inside of the housing to the outside. By being pressed by the tray, the opening is opened against the bias of the spring.

  In the invention of claim 3 configured as described above, the door plate is biased by the spring so as to close the opening. The door plate is pressed by the disk tray that advances from the inside of the housing toward the outside. Thereby, the said opening can be open | released against the urging | biasing force of the said spring. That is, when the disc tray protrudes from the housing, the opening can be opened.

The invention according to claim 4 is a torsion spring having a substantially cylindrical coil portion, both ends of which extend in a substantially tangential direction of the coil portion, and the spring holding portion formed in a column shape. Is configured to be inserted through the inside of the coil portion.
In the invention of claim 4 configured as described above, a torsion spring is applied as the spring, and the torsion spring includes a substantially cylindrical coil portion and both ends respectively extending in a substantially tangential direction of the coil portion. Composed. The spring holding portion is formed in a columnar shape, and the coil portion formed in a substantially cylindrical shape is inserted therethrough.

Furthermore, the invention concerning Claim 5 is set as the structure by which the securing protrusion which protrudes in the radial direction of the said spring holding part is extended in the front-end | tip of the said spring holding formed in the column shape.
In the invention of claim 5 configured as described above, the coil portion is inserted into the spring holding portion by forming a retaining protrusion protruding in the radial direction of the spring holding portion at the tip of the spring holding portion. The torsion spring can be prevented from coming off.

As described above, according to the first and second aspects of the present invention, it is possible to provide a television with a disk reproduction function and a disk reproduction apparatus in which a spring for urging a rotary door is less likely to fall off and can be easily assembled. Can do.
According to the invention of claim 3, the opening can be opened only when the disc tray slides outside.
Furthermore, according to the invention concerning Claim 4, a torsion spring can be attached easily.
Furthermore, according to the invention concerning Claim 5, a torsion spring can be hold | maintained reliably.

  FIG. 1 is a perspective view of a television with a DVD playback function as a disk playback apparatus according to the present invention. Note that the present invention can be applied to any device that slides at least the disc tray, and can also be applied to a device such as a DVD player that is provided with a single disc playback function. Further, it may be incorporated in other devices such as a television with a disk playback function, and can be applied to a disk drive of a personal computer or the like. Of course, even a device having a writing function in addition to the reproducing function can be applied. Also, the present invention can be applied to devices that reproduce and record CDs, CD-Rs, CD-RWs, DVDs, and the like.

  In FIG. 1, a television 10 has a substantially box-shaped housing 12. The casing 12 has a rectangular opening on the front, and the picture tube 11 is housed inside so as to expose the display surface from the opening. An opening 12a elongated in the width direction is formed below the display surface of the picture tube 11, and the inside and the outside of the housing 12 communicate with each other through the opening 12a. A rotary door 20 is attached to the inside of the opening 12a, and the opening 12a is blocked by a substantially plate-like door plate 21 provided in the rotary door 20. The rotary door 20 is rotatably attached to the housing 12, and the door plate 21 rotates with respect to the opening 12 a when the rotary door 20 rotates. In this way, the opening 12a can be opened and closed.

  FIG. 2 shows how the disc tray slides forward. In the figure, a disc tray 18 having a substantially rectangular plate shape slides forward from the television 10. By forming a circular recess at a substantially central portion of the disc tray 18, a disc placement portion 18a is formed. The disc mounting portion 18a is exposed to the outside of the housing 12 when the disc tray 18 slides forward. Therefore, by sliding the disc tray 18 forward, the user can place the disc on the disc placement portion 18a or take out the disc placed on the disc placement portion 18a.

  The disc tray 18 can be slid according to a predetermined operation. Then, in a state where the disk tray 18 is slid into the housing 12, the disk reproducing mechanism provided in the housing 12 chucks the disk, rotates the disk, and optically records the data recorded on the disk. Can be read automatically. By reproducing the data read as described above, an image can be displayed on the picture tube 11. As shown in FIG. 2, in a state where the disc tray slides forward, the substantially plate-like door plate 21 is pushed forward. That is, the door plate 21 is pushed forward by contacting the front end portion of the disc tray 18 that slides forward, whereby the opening 12a is opened, and the disc tray 18 protrudes forward from the opening 12a.

  FIG. 3 shows the rotary door 20 viewed from an oblique direction, and FIG. 4 shows the rotary door 20 viewed from the side. In both figures, the rotary door 20 is removed from the housing 12. The rotary door 20 has a substantially plate-like door plate 21 whose outer shape is slightly smaller than the opening 12a, and a pair of substantially plate-like parallel arms 22 and 22 extend from both longitudinal ends thereof. Has been. Each of the arms 22 and 22 is formed in an L-shaped shape, and substantially cylindrical rotating shafts 23 and 23 projecting outward in the width direction are formed in the vicinity of the end portions that are not joined to the door plate 21. ing. A substantially cylindrical spring holding portion 24 and a rectangular first support portion 25 project outward in the width direction at a position away from the rotation shaft 23 in one arm 22. A distal end portion of the spring holding portion 24 is provided with a substantially rectangular retaining protrusion 24 a that protrudes radially outward of the spring holding portion 24.

  FIG. 5 shows a state in which the torsion spring is attached to the spring holding portion 24. In the drawing, a torsion spring 26 is formed by bending a metal wire, and a cylindrical coil portion 26a and linear end portions 26b1, both ends of which are extended in a tangential direction. 26b2. The torsion spring 26 is formed so as to have an original shape when the end portions 26b1 and 26b2 are orthogonal to each other. When the angle at which the end portions 26b1 and 26b2 intersect is narrowed or widened, the torsion spring 26 tries to return to the original shape. The elastic force is accumulated.

  The coil portion 26a has a predetermined length in the axial direction, and can be bent in the elastic deformation region of the coil portion 26a. Then, the retaining protrusion 24a and the spring holding portion 24 can be inserted in the axial direction by bending the coil portion 26a in a substantially U shape as shown in FIG. The spring holding part 24 is formed to have a smaller diameter than the inner diameter of the coil part 26a, and the height is formed to be higher than the length of the coil part 26a. Accordingly, the torsion spring 26 can be attached to the rotary door 20 in a state where the spring holding portion 24 is inserted through the coil portion 26a as shown in FIG. Since the clearance in the radial direction between the coil portion 26a and the spring holding portion 24 is formed smaller than the protruding amount in the radial direction of the retaining projection 24a, the torsion spring 26 is used unless the coil portion 26a is bent as shown in FIG. Can be prevented from being removed from the rotary door 20.

  FIG. 7 shows the vicinity of the opening 12a of the housing 12 as viewed from the inside. In the drawing, a pair of substantially parallel bearing pieces 14 and 14 projecting inward are formed at both ends in the width direction of the opening 12a. Circular shaft holes 14a and 14a pass through the bearing pieces 14 and 14 in the width direction, respectively. A second support portion 15 that extends in a rectangular shape from the one bearing piece 14 toward the outside in the width direction is extended. Further, a stopper 16 that protrudes in a rectangular shape from the coaxial receiving piece 14 toward the inner side in the width direction is extended. Rotating shafts 23 and 23 of the rotary door 20 are respectively inserted into the shaft holes 14a and 14a from the inside, whereby the rotary door 20 and the housing 12 are rotatably connected.

  The interval in the width direction of the bearing pieces 14, 14 is formed wider than the interval in the width direction of the arms 22, 22 in the rotary door 20. The amount is small. In attaching the rotary door 20 to the housing 12, a torsion spring 26 is attached to the rotary door 20 in advance, and the rotary shaft is inserted into the shaft holes 14a and 14a while the door plate 21 and the arms 22 and 22 are bent. 23 and 23 are inserted.

  FIG. 8 shows a state where the rotary door 20 is attached to the housing 12 as viewed from the side of the bearing piece 14. In the figure, a rotary door 20 to which a torsion spring 26 is attached is attached to the housing 12 by inserting a rotary shaft 23 through a shaft hole 14a. . End portions 26b1 and 26b2 of the torsion spring 26 are engaged with the first support portion 25 and the second support portion 15, respectively. In the state shown in the figure, the end portions 26b1 and 26b2 are orthogonal to each other, the torsion spring 26 has an original shape, and the arm 22 interferes with the stopper 16 protruding inward in the width direction from the bearing piece 14. At the same time, the door plate 21 closes the opening 12a. Thus, when the torsion spring 26 assumes the original shape, the opening 12a can be closed. The stopper 16 prevents the door plate 21 from being turned inward than when the opening 12a is closed. Therefore, the stopper 16 always closes the opening 12a when no external force is applied to the rotary door 20. Can do.

  FIG. 9 shows how the rotary door 20 rotates. In the figure, a disk tray 18 slides forward, and the door plate 21 is pushed forward by the disk tray 18. That is, as the rotary door 20 rotates about the rotation shafts 23, 23, the door plate 21 is pushed forward, and the disc tray 18 projects forward from the opening 12a opened thereby. At that time, the first support portion 25 formed on the rotary door 20 moves on the circumferential track and approaches the second support portion 15. As a result, the angle formed by the end portions 26b1 and 26b2 supported on the inner sides of the first support portion 25 and the second support portion 15 is narrowed, and the urging force for returning these angles to a right angle is applied to the torsion spring 26. Will be accumulated.

  Therefore, if the disc tray 18 is accommodated in the housing 12 again so that the disc tray 18 and the rotary door 20 do not interfere with each other, the rotary door 20 is pushed up by the biasing force, and again as shown in FIG. The opening 12a can be closed. Since the distance between the arms 22 and 22 is larger than the width of the disk tray 18, the arms 22 and 22 do not interfere with the disk tray 18. In this way, by utilizing the urging force of the torsion spring 26, the opening 12a can always be closed in normal times. In addition, since the spring holding part 24 moves with rotation of the rotary door 20, the space | interval of the 2nd support part 15 and the spring holding part 24 is fluctuate | varied. Therefore, the position where the end portion 26b2 is supported by the second support portion varies while sliding on the second support portion 15.

  According to the configuration described above, when attaching the rotary door 20 to the housing 12, the torsion spring 26 is attached to the rotary door 20 in advance, and then the rotary shafts 23 and 23 are inserted into the shaft holes 14a and 14a. Can do. Therefore, since the torsion spring 26 does not fall off when the rotating shafts 23 and 23 are inserted into the shaft holes 14a and 14a, the assembly can be easily performed. Moreover, after assembling, if the rotary door 20 is forcibly pushed or pulled, the rotating shafts 23, 23 that are connected to the housing 12 may be damaged. On the other hand, since the torsion spring 26 is held by the spring holding portion 24, the torsion spring 26 can be held by the rotary door 20 even if the rotating shafts 23, 23 are damaged. Therefore, it is possible to prevent the torsion spring 26 from falling off the rotary door 20, and the torsion spring 26 falls on various electronic components inside the housing 12, so that an electrical failure does not occur.

  As described above, in the present invention, the torsion spring 26 is held by the spring holding portion 24 provided separately from the rotary shafts 23 and 23 that rotatably connect the casing 12 and the rotary door 20. Yes. Therefore, it is possible to prevent the torsion spring 26 from falling off even if the rotating shafts 23 are broken. Further, the torsion spring 26 is prevented from coming off by a retaining protrusion 24 a protruding from the tip of the spring holding portion 24 while the coil portion 26 a is inserted into the substantially cylindrical spring holding portion 24. Accordingly, it is possible to make it difficult for the torsion spring 26 to fall off the spring holding portion 24.

It is a perspective view of a television with a DVD playback function. It is a perspective view of a television with a DVD playback function. It is a perspective view of a rotary door. It is a side view of a rotary door. It is a perspective view of an arm. It is a perspective view of an arm. It is a perspective view of a housing | casing. It is operation | movement explanatory drawing of a rotary door. It is operation | movement explanatory drawing of a rotary door.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Television with DVD reproduction function 11 ... Picture tube 12 ... Housing 12a ... Opening 14 ... Bearing piece 14a ... Shaft hole 15 ... First support part 16 ... Stopper 18 ... Disc tray 18a ... Disc mounting part 20 ... Rotation Type door 21 ... Door plate 22 ... Arm 23 ... Rotating shaft 24 ... Spring holding part 24a ... Stop projection 25 ... Second support part 26 ... Torsion spring 26a ... Coil part 26b1, 26b2 ... End part

Claims (5)

In a television with a disc playback function comprising a housing provided with an opening for projecting a disc tray that slides from the outside to the outside, and a pivoting door that opens and closes the opening by turning.
The pivot door is
A substantially plate-like door plate that closes the opening and is pressed by the disc tray that slides outside the housing;
A pair of arms erected from both ends of the door plate toward the inside of the housing;
A pair of pivot shafts respectively supported by a pair of bearings standing from each of the arms and provided inside the housing;
A columnar spring holding portion formed on at least one of the arms;
A retaining projection protruding in the radial direction of the spring holding portion at the tip of the spring holding portion;
The spring holding portion is inserted through the inside of the coil portion, and one end extended from the coil portion in a substantially tangential direction is supported by the rotary door, and similarly extends from the coil portion in a substantially tangential direction. The other end is supported by the housing, and the torsion spring for urging the rotating door with respect to the housing in the direction in which the door plate closes the opening is provided. TV with disc playback function. In a disk reproducing apparatus comprising a housing provided with an opening for projecting a disk tray that slides from the outside to the outside, and a rotary door that opens and closes the opening by rotating.
The pivot door is
A substantially plate-like door plate that closes the opening;
A pair of arms erected from the door;
A pair of pivot shafts respectively supported by a pair of bearings standing from each of the arms and provided inside the housing;
A spring holding portion formed on at least one of the arms;
While being held by the spring holding portion, one end is supported by the pivot door and the other end is supported by the casing, whereby the pivot door is moved in a predetermined direction with respect to the casing. A disc reproducing apparatus comprising a spring for biasing. The door plate of the rotary door is
The spring is biased to close the opening,
3. The disk reproducing apparatus according to claim 2, wherein the opening is opened against the urging of the spring by being pressed by the disk tray traveling from the inside of the housing toward the outside. . The spring is
A torsion spring having a substantially cylindrical coil part and both ends extending in a substantially tangential direction of the coil part,
4. The disk reproducing apparatus according to claim 2, wherein the inside of the coil portion is inserted into the spring holding portion formed in a column shape.   5. The disk reproducing apparatus according to claim 4, wherein a retaining protrusion protruding in a radial direction of the spring holding portion is extended at a tip end of the spring holding formed in a column shape.

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