KR100575644B1 - Apparatus diverging power and disk changer comprising it - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc changer having a power diverter and a power diverter, wherein the power diverter diverges power to implement a plurality of operations by using the driving force of the first and second drive motors. Combined to rotate by transmitting the power of one drive motor, several selection gear teeth formed in different areas to transfer power to different driving units according to the amount of rotation, and mode selection cam mode for the mode selection on one side For cam gear; A plurality of first power transmission gears respectively coupled to the selection gear teeth; A cam arm inserted at one end of the cam follower and coupled to the cam path, and at the other end of the cam arm to which a driving gear receiving power of the second driving motor is coupled; An idler gear coupled to one side of the cam arm to engage the drive gear; A plurality of second power transmission gears coupled to engage the idler gear according to the position of the idler gear; In addition, by adopting a power diverter that allows a plurality of bodies to implement various operations with only two driving units and a simple component configuration, and by employing the power diverter, the various operations required for the stacked disk changer can be realized. The present invention provides a disc changer having a power branching device that can be switched quickly.

Disc changer, power diverter, pinion

Description

Disc changer with power diverter and power diverter {APPARATUS DIVERGING POWER AND DISK CHANGER COMPRISING IT}

1 is a perspective view showing a disk changer of the conventional rotary type.
2 is a plan view of a power branch device according to an embodiment of the present invention.
3 is a partial rear view of the power branching device of FIG. 2 when the mode selection cam gear is in its initial position;
4 is a plan view of a portion of the power branching device of FIG. 2 when the idler gear is engaged with the second feed pinion;
5 is a plan view of a portion of the power branching device of FIG. 2 when the idler gear is engaged with the elevation pinion.
FIG. 6 is a rear view of a portion of the power branching device of FIG. 2 when the mode selection cam gear is in the first body transport position; FIG.
FIG. 7 is a rear view of a portion of the power branching device of FIG. 2 when the mode selection cam gear is in the second selection position; FIG.
FIG. 8 is a rear view showing a part of the power branching device of FIG. 2 when the mode selection cam gear is in the first selection position. FIG.
9 is a perspective view of a disc changer.

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10 is a front view of the disc changer of FIG. 9.

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Fig. 11 is a sequence timing chart showing the operation of the disc changer drive device of Fig. 9 in mode.

** Description of the symbols for the main parts of the drawings **

110: first drive unit 111: first drive motor

120: second drive unit 121: second drive motor

131: cam follower 132: cam arm

133: drive gear 134: idler gear

140: cam gear for mode selection 141: first selection gear tooth

143: third selection gear tooth 145: fifth selection gear tooth

146: gear coupling with drive unit 147: cam path for mode selection

151: feed gear (tray feed gear)
152: first feed pinion (tray feed pinion)

153: second selection gear (second tray selection gear)
154: selection pinion (tray selection pinion)

155: first selection gear (first tray selection gear)
156: elevation pinion (pickup elevation pinion)

157: second feed pinion (cartridge feed pinion)

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc changer having a power diverter and a power diverter, and more particularly, to a disk changer and a power diverter capable of implementing various operations of the disk changer using a small number of drives and parts. A drive device for a disc changer.

In general, a disc changer is a product that can play and exchange a plurality of discs in a set, and there are a rotary type and a recently stacked type.

Fig. 1 is a perspective view showing a conventional rotary type disc changer, wherein a roulette (3) having a plurality of disc housing portions (2) formed on the tray (1) is rotatably coupled, and the tray (1) One side is coupled to the clamping member 4 for fixing the disk seated in the disk housing (2).

Therefore, when the user selects the desired disk, the playout is performed by the optical pickup (not shown) after the disk is fixed, when the selected receiver 2 is located in the clamping member 4 while the roulette 3 is rotated.

However, this conventional rotary type disc changer arranges the discs radially symmetrically with respect to the center of rotation, so that the area of the tray 1 becomes large, so that the size of the apparatus becomes very large, and also it can be accommodated in a constant area. The number of disks that can be used will be less.

In addition, since the Roulette 3 has a relatively large diameter and a large weight, the inertia is large, and thus the rotation speed of the Roulette 3 cannot be increased, so that the time required for replacing the disk becomes long. have.

In order to solve this problem, a stacked disk changer has recently been developed. In order to operate the stacked disc changer, an operation of selecting one of a plurality of stacked trays, an operation of extracting the tray to the outside to exchange disks, and an operation of adjoining the selected tray and the pickup to reproduce the selected tray may be performed. Should be implemented.

In order to implement all of these operations, a plurality of driving units are required. However, in order to mount a plurality of driving units, the size of the disk changer is increased, which is not suitable for miniaturization, and may cause an increase in cost and frequent failures.

Disclosure of Invention The present invention has been made to solve the above problems, and an object of the present invention is to provide a disc changer having a power diverter and a power diverter which can stably implement all the operations required for the disc changer from the minimum drive. It is done.

The present invention is a power branch device for branching the power to implement a plurality of operations by using the driving force of the first drive motor and the second drive motor in order to achieve the object as described above, the power of the first drive motor is A plurality of selection gear teeth formed in different regions for transmitting power to the other driving units and a mode selection cam pass formed on one surface thereof to be transmitted and rotated; A plurality of first power transmission gears respectively coupled to the selection gear teeth; A cam arm inserted at one end of the cam follower and coupled to the cam path, and at the other end of the cam arm to which a driving gear receiving power of the second driving motor is coupled; An idler gear coupled to one side of the cam arm to engage the drive gear; A plurality of second power transmission gears coupled to engage the idler gear according to the position of the idler gear; It provides a power branch configured to include.
Here, the mode selection cam gear may be formed by stacking selection gear teeth, and the selection gear teeth may be formed to form concentric circles at the center of rotation of the mode selection cam gear and different pitch circles from each other.
In addition, the present invention comprises a cartridge for stacking and accommodating each of a plurality of trays for storing the disk so as to slide; A main frame slidably coupled between a built-in position housed therein and an exchange position projecting outwardly; A pickup module installed to move perpendicularly to the main frame; A tray transfer gear transmitting power to transfer the tray toward the pickup module; A cartridge transport pinion to move the cartridge between the built-in position and the exchange position; A pickup elevation pinion for transferring the pickup module up and down; A tray selection gear for transmitting power to a tray selection mechanism for fixing the tray at a predetermined position; A mode selection cam gear having a first selection gear tooth meshed with the tray feed gear and a third selection gear tooth meshing with the tray selection gear in a different region, and a mode selection cam pass formed on one surface thereof; A cam follower inserted into the cam pass at one end thereof, and a cam arm coupled at the other end to be rotatable; An idler gear engaged to one side of the cam arm to mesh with the drive gear and to selectively engage the pickup elevation pinion and cartridge pinion as the cam arm rotates; A first driver for driving the mode selection cam gear; A second drive unit for driving a drive gear installed at the cam arm; Provided is a disk changer having a power branch configured to include.
Here, the tray selection gear is composed of a first tray selection gear and a second tray selection gear, the third tray selection gear teeth meshes with the first tray selection gear, and the fifth tray selection gear teeth meshing with the second tray selection gear are It may be further formed on the cam gear for mode selection.
The mode selection cam gear is divided into a tray selection position, an initial position, and a tray transfer position according to the rotation amount, and when the mode selection cam gear is in the tray selection position, the third tray selection is to be engaged with the tray selection gear. The gear tooth is formed, and when the mode selection cam gear is in the tray feed position, the first selection gear tooth is formed to engage the tray feed gear, and the cam path is formed with the idler gear when the mode select cam gear is in the initial position. The pick-up elevation pinion is engaged and may be configured to engage the idler gear and the cartridge transport pinion when the mode selection cam gear is in the tray selection position.

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Hereinafter, various embodiments of the present invention will be described in detail with reference to the accompanying drawings.

However, in describing the present invention, a detailed description of known functions or configurations will be omitted in order not to disturb the gist of the present invention. In addition, the same reference numerals are given to the same and the same components as those described above, and detailed description thereof will be omitted.

2 is a plan view of the power splitter according to an embodiment of the present invention, FIG. 3 is a partial rear view of the power splitter of FIG. 2 when the mode selection cam gear is in an initial position, and FIG. Top view of a portion of the power diverter of FIG. 2 when coupled with a feed pinion, FIG. 5 is a plan view of a portion of the power diverter of FIG. 2 when an idler gear is engaged with an elevation pinion, FIG. Back view of a part of the power branch device of FIG. 2 when the selection cam gear is in the first body transfer position, and FIG. 7 shows the power branch device of FIG. 2 when the mode selection cam gear is in the second selection position. 8 is a rear view showing a part of the power branch device of FIG. 2 when the mode selection cam gear is in the first selection position.

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As shown in FIG. 2 to FIG. 8, the power branch device 100 according to an embodiment of the present invention may include a first driving unit 110, a second driving unit 120, and the first driving unit 110. It is driven and meshes with the mode selection cam gear 140 and the selection gear teeth 141, 143, and 145 having the selection gear teeth 141, 143, and 145 and the mode selection cam pass 147 formed on one surface thereof. The transfer gear 151 and the first and second selection gears 155 and 153 which are formed to be rotated, and one end of the cam follower 131 inserted into the cam path 147 are coupled, and the other end of the driving gear 133 is connected. The cam arm 132 coupled to be rotatable, the idler gear 134 meshed with the driving gear 133 and the position is changed as the cam arm 132 rotates, and the mesh is engaged according to the position of the idler gear 134. And an elevation pinion 156 and a second conveying pinion 157 installed so as to extend.

The first drive unit 110 includes a first drive motor 111 and a series of first driver reduction gears 112-114 connected to the first drive motor 111. The second driving unit 120 also includes a second driving motor 121 and a series of second driving reduction gears 1222-124 connected to the second driving motor 121.

The selection gear teeth 141, 143, and 145 are concentric with the outer periphery of the mode selection cam gear 140 and are formed with different pitch circles. That is, as shown in FIG. 3, a first selection gear tooth 141 is partially formed at the lowermost outer periphery, a fifth selection gear tooth 145 is partially formed at the intermediate end thereof, and a third selection gear tooth is formed at the outermost peripheral end. 143 is partially formed.

The transfer gear 151 is installed to engage the first selection gear tooth 141, and the other end is coupled to the first transfer pinion 152. The first transport pinion 152 performs a function of transporting each of a plurality of first bodies (not shown) having the same shape.

The second selection gear 153 is installed to engage with the third selection gear tooth 143, and the other end is coupled to the selection pinion 154. The selection pinion 154 performs a function of selecting one first body of the plurality of first bodies.
Therefore, when the selection pinion 154 selects the first body of one of the plurality of first bodies, the transfer gear 151 transfers the selected first body.

The first selection gear 155 is installed to engage the fifth selection gear tooth 145, and the other end is coupled to the second selection gear 153.

The mode selection cam gear 140 sequentially has an initial position (FIG. 3), a transfer position (FIG. 6), a regeneration position, and a second selection position (FIG. 3) according to the positions of the selection gear teeth 141, 143, and 145. 7) and a first selection position (Fig. 9).

That is, in the initial position, as shown in FIG. 3, the selection gear teeth 141, 143, and 145 are not engaged with the second selection gear 153, the first selection gear 155, and the transfer gear 151. Then, turning from the initial position clockwise with reference to FIG. 3 results in a transfer position (FIG. 6), at which time the first selection gear tooth 141 meshes with the transfer gear 151. Then, when rotated clockwise with respect to FIG. 6 in the transfer position, the regeneration position is obtained, in which case the selection gear teeth 141, 143, 145 are selected by the second selection gear 153, the first selection similarly to the initial position. It is not coupled with the gear 155 and the transfer gear 151. Then, when the clockwise rotation is made with respect to FIG. 6 at the regeneration position, the second selection position (FIG. 7) is engaged. In this case, the third selection gear tooth 143 is engaged with the second selection gear 153. Then, when the clockwise rotation of the second selection position (Fig. 7) relative to Fig. 7 becomes the first selection position (Fig. 8), the fifth selection gear tooth 145 is the first selection gear ( 155). Then, when rotated clockwise with reference to FIG. 8, it is again positioned at the initial position of FIG. 3.

The mode selection cam path 147 is formed of a second body drive cam path 147a, an elevation cam path 147c, and connection cam paths 147b and 147d connecting them. The elevation cam pass 147c has a larger pitch circle than the second body driving cam pass 147a. Therefore, when the cam follower 131 is positioned in the second body drive cam pass 147a, the idler 134 is coupled to the second feed pinion 157, and the cam follower (e) in the elevation cam pass 147c. The idler 134 is located at the elevation pinion 156 when 131 is positioned.

In addition, the mode selection cam pass 147 is formed in association with the selection gear teeth 141, 143, 145. That is, when the mode selection cam gear 140 is in the initial position (FIG. 3), the cam follower 131 should be positioned in the elevation cam pass 147c, and the mode selection cam gear 140 is in the selection position. When in (Figs. 7 and 8), the cam follower 131 should be located in the second body drive cam pass 147a.

The elevation pinion 156 performs a function of vertically moving a third body (not shown) in the vertical direction.
In addition, the second transfer pinion performs a function of transferring a second body (not shown).
By using the power branch device according to the embodiment of the present invention as described above, it is possible to move the first, second and third bodies, respectively, by two driving units. That is, since a plurality of bodies are respectively moved by the minimum driving device, the volume of the driving device employing the power branching device as described above can be greatly reduced.
More specifically, the selection gear teeth 141, 143, and 145 selectively engage one of the first and second selection gears 155 and 153 to drive the selection pinion 154 to select one of the plurality of first bodies. By engaging the transfer gear, the first transfer pinion 152 is driven to transfer the selected first body, and the second body drive cam pass 147a drives the second transfer pinion 157 to drive the second body. And the elevation cam pass 147c drives the elevation pinion 156 to transfer the third body. Therefore, by providing one mode selection cam gear 140, it is possible to implement a variety of operations.

On the other hand, it will be described in detail with respect to the disk changer having a power diverging device according to another embodiment of the present invention. However, for the components that perform the same function as described in the embodiment of the present invention will be given the same reference numerals and detailed description thereof will be omitted.
9 is a perspective view showing the configuration of a disc changer with a power diverging device according to another embodiment of the invention, and FIG. 10 is a front view of FIG.
As shown in these figures, the disc changer according to another embodiment of the present invention is a pickup that can move up and down on the main frame 10 and the main frame 10 and can read and write data in the data area of the disc. A cartridge 30 coupled to the main frame 10 so as to be slidably moved between the module 20, an accommodating position stored in the main frame 10, and an exchange position projecting outwardly, and the cartridge A plurality of trays 51-55 stacked on the cartridge 30 and coupled to the cartridge 30 so as to slide in the longitudinal direction, and a tray lock selecting device 40 for selectively fixing the trays 51-55. And a disc changer drive device 100 for driving the disc changer.
Here, the disc changer drive device 100 may be configured by employing the power branch device 100 according to an embodiment of the present invention, and thus the transfer gear 151 as described in the embodiment of the present invention is To the tray feed gear 151, the first feed pinion 152 to the tray feed pinion 152, the second select gear 153 to the second tray select gear 153, and the select pinion 154 to select the tray. To the pinion 154, the first selection gear 155 to the first tray selection gear 155, the elevation pinion 156 to the pickup elevation pinion 156, and the second transfer pinion 157 to the cartridge transfer pinion ( In 157, the second body drive cam pass 147a may correspond to the cartridge drive cam pass 147a, and the elevation cam pass 147c may correspond to the pickup elevation cam pass 147c.
In addition, the first body may correspond to the trays 51 to 55, the second body to the cartridge 30, and the third body to the pickup module 20.
Here, the tray lock selector 40 is a cam plate 41 that can selectively operate the latch (not shown) that can be elastically inserted into the groove (not shown) formed on the side of the cartridge 30. It is implemented by driving. That is, the locking state of the trays 51-54 is sequentially released from the bottom in accordance with the amount of movement in the longitudinal direction of the cam plate 41 by the cam protrusions 42 sequentially formed on the cam plate 41. The specific configuration of the lock selector 40 is not a feature of the present invention and therefore does not describe the specific configuration.
The disc changer driving device 100 should move the pickup module 20 in the up and down direction 21 for smooth operation of the disc changer, and move the cartridge 30 in the direction of the arrow 31 between the storage position and the replacement position. It should be moved, and the cam plate 41 of the lock selector 40 must be moved forward and backward in the longitudinal direction, and the trays 51-55 selected as the top surface of the pickup module 20 in the direction of the arrow 56. Must be able to move
Therefore, by employing the power branch device according to an embodiment of the present invention, it is possible to perform a variety of operations as a minimum driving unit.
Hereinafter, the operation of the disc changer according to another embodiment of the present invention will be described.
11 is a sequence timing chart showing the operation of the disc changer in mode according to another embodiment of the present invention.
When the user presses a disk eject button (not shown) in order to replace the disk at the initial position, the first driving unit 111 moves the mode selection cam gear 140 counterclockwise from the initial position 220 with reference to FIG. 3. By rotating to the first tray selection position 210 where the fifth selection gear tooth 145 and the first tray selection gear 155 mesh with each other. The driving force transmitted to the first tray selection gear 155 is transmitted to the tray selection pinion 154 through the second tray selection gear 153, and the tray selection pinion 154 drives the rack formed on the cam plate 40. Done. At this time, the mode selection cam gear 140 is rotated to move the cam plate 40 to a position where the lock selection device to the tray to be replaced is released. Then, the cam follower 131 is located in the cartridge drive cam path 147a. Then, when driving the second drive unit 120, the driving force is transmitted to the cartridge feed pinion 157 through the drive gear 133, the idler gear 134, and as the cartridge feed pinion 157 rotates, A cartridge 30 having a horizontal rack (not shown) coupled to the cartridge transport pinion 157 is ejected to the outside. At this time, the lock selector is released only from the lowermost tray to the trays 51 to 55 to be replaced, and the trays to be replaced are ejected together with the cartridge 30 in a state where the replacing tray is located at the top.
Then, when the user presses the eject button once again, the second drive unit 120 reversely rotates to move the cartridge 30 to the built-in position. Then, the first driving unit 110 rotates in reverse to move the mode selection cam gear 140 to the initial position.
When the user selects a desired disc to play the disc, the second drive unit 120 is driven at the initial position. Since the idler gear 134 is coupled to the pickup elevation pinion 156 in the initial position, the driving force of the second drive unit 120 is transmitted to the pickup elevation pinion 156 through the drive gear 133 and the idler gear 134. To rotate the pickup elevation pinion 156. As the pickup elevation pinion 156 rotates, a vertical rack (not shown) coupled to the pickup elevation pinion 156 moves up and down, and the pickup module 20 to which the vertical rack (not shown) is fixed is to be regenerated. The disc is located at the bottom of the cartridge housed.
Then, the first driving unit 110 is driven to rotate the mode selection cam gear 140 clockwise with reference to FIG. 3 to the regeneration position 240 via the tray transfer position 230. While passing through the tray feed position 230, the driving force of the first drive unit 110 is transmitted to the mode selection cam gear 140, the tray feed gear 151, and the tray feed pinion 152 to transfer the tray feed pinion 152. Rotate The rotational force of the tray transport pinion 152 moves the rack (not shown) coupled to the selected tray to position the tray on top of the pickup module. Then, the disk on which the pickup module 20 is mounted is played.
When playing a disc mounted in another tray during playback, the first driving unit 110 rotates the mode selection cam gear 140 to the initial position 220 in the counterclockwise direction with reference to FIG. 3. The rotational force transmitted to the tray transfer gear 151 and the tray transfer pinion 152 during the return to the initial position 220 returns the tray located at the top of the pickup module 20 to the cartridge 30. The subsequent operation is the same as the reproducing operation.
When the user wants to replace or check another disc during playback, when the user presses a desired tray eject operation, the first driving unit 110 is driven to further rotate the mode selection cam gear 140 clockwise with reference to FIG. 3. In this case, the third selection gear tooth 143 and the second tray selection gear 153 mesh with each other and rotate as shown in FIG. 7. The rotational force of the second tray selection gear 153 is transmitted to the tray selection pinion 154 and the tray selection pinion 154 drives the rack (not shown) formed on the cam plate 40 to move the cam plate 40 in the horizontal direction. Move to. The subsequent operation is the same as pressing the eject button at the initial position as described above.

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As described above, the disc changer having the power diverging device according to another embodiment of the present invention can implement various operations required for the stacked disc changer with only two driving units and a simple component configuration, and also enable rapid operation switching. .

Although the preferred embodiments of the present invention have been described above by way of example, the scope of the present invention is not limited to these specific embodiments, and may be appropriately changed within the scope described in the claims.

The present invention employs a power diverter which allows a plurality of bodies to implement various operations with only two driving units and a simple component configuration, and by employing the power diverter, it is possible to implement various operations required for a stacked disc changer, Provided is a disk changer having a power diverter that can switch operation.

Claims (7)

A power branch device for branching power to implement a plurality of operations using the driving force of the first drive motor and the second drive motor, The power of the first drive motor is coupled to be rotated by transmission, a plurality of selection gear teeth formed in different areas to transmit power to different driving units according to the amount of rotation, and a mode selection cam pass formed on one surface A cam gear for mode selection; A plurality of first power transmission gears respectively coupled to the selection gear teeth; A cam arm having one end coupled to the cam follower inserted into the cam path, and the other end having a cam arm coupled with a driving gear to receive power of the second driving motor; An idler gear coupled to one side of the cam arm to engage the drive gear; A plurality of second power transmission gears coupled to engage the idler gear according to the position of the idler gear; Power branch device comprising a. According to claim 1, wherein the mode selection cam gear is Power branching device characterized in that the selection gear teeth are stacked to form a stage. According to claim 2, wherein the mode selection cam gear is And the selection gear teeth form concentric circles at the center of rotation of the mode selection cam gear, and the pitch gears are different from each other. A cartridge for stacking and accommodating the plurality of trays for storing the disks so as to be slidable; A main frame for slidably coupling the cartridge between a built-in position housed therein and an exchange position projecting outwardly; A pickup module installed to move perpendicularly to the main frame; A tray transfer gear transferring power to transfer the tray toward the pickup module; A cartridge transport pinion to move the cartridge between a built-in position and an exchange position; A pickup elevation pinion for transporting the pickup module up and down; A tray selection gear for transmitting power to a tray selection mechanism for fixing the tray at a predetermined position; A mode selection cam gear having a first selection gear tooth meshing with the tray feed gear and a third selection gear tooth meshing with the tray selection gear, the mode selection cam pass being formed on one surface; A cam arm inserted into the cam path at one end thereof and coupled to a cam arm at the other end thereof so that the driving gear is rotatable; An idler gear engaged with the drive gear and coupled to one side of the cam arm to selectively engage the pickup elevation pinion and cartridge pinion as the cam arm rotates; A first driver for driving the mode selection cam gear; A second drive unit for driving the drive gear installed at the cam arm; Disc changer having a power branch device characterized in that it comprises a. The method of claim 4, wherein The mode selection cam gear, The disc changer having a power splitting device, characterized in that the selection gear teeth are stacked to form a stage. The method of claim 4, wherein The tray selection gear is composed of a first tray selection gear and a second tray selection gear, The third tray selection gear tooth meshes with the first tray selection gear, and the fifth tray selection gear tooth meshing with the second tray selection gear is further formed in the mode selection cam gear. . The method according to any one of claims 4 to 6, The mode selection cam gear is divided into a tray selection position, an initial position, and a tray transfer position according to the rotation amount. When the mode selection cam gear is in the tray selection position, a third tray selection gear tooth is formed to engage the tray selection gear, When the mode selection cam gear is in the tray feed position, the first selection gear tooth is formed to engage the tray feed gear, The cam pass includes the idler gear and the pickup elevation pinion when the mode selection cam gear is in the initial position, and the idler gear and the cartridge conveyance when the mode selection cam gear is in the tray selection position. A disc changer having a power diverging device, characterized in that the pinions are configured to engage.

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