JP2006216176A - Cartridge pressing mechanism of disk apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cartridge pressing mechanism in which the number of parts is reduced, thereby reducing the cost, and the total of required spring forces is reduced, so that the cartridge pressing mechanism can be driven by a small driving force. <P>SOLUTION: A tray (20) placing a cartridge (1) thereon is transported in an apparatus, a holder member (30) is lowered along with the tray (20), a height of the tray (20) and a position of the cartridge (1) are determined by a positioning member (15) provided in a main body (11) of the apparatus. A clamp member (40) is swung downward to attach a disk (2) to a disk rotating means. A spring (53) for energizing the clamp member (40) in a clamping direction causes the clamp member (40) to press the holder member (30), the holder member (30) to press the cartridge (1), and the cartridge (1) to press the tray (20), so that the tray, the cartridge, the holder member, and the clamp member are positioned with respect to the positioning member (15). <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a cartridge pressing mechanism of a disk device when a cartridge is loaded into a disk device for reproducing or recording / reproducing a disk such as an optical disk.

  In the conventional cartridge pressing mechanism of the disk device, the positioning of the clamp arm is performed by a spring provided on the cam of the slide member, and the positioning of the tray holder is performed by another spring provided on the cam of the slide member. The cartridge is pressed by a leaf spring provided on the tray holder.

  A cartridge pressing mechanism of a conventional disk device will be described with reference to FIGS. FIG. 14 is a perspective view showing a state in which the tray is lowered at the carry-in position and the cartridge is positioned at the disk loading position (recording / reproducing position), and FIG. 16 is a perspective view seen from the bottom side of the tray holder, and FIG. 17 is a side view showing the cam portion of the slide member.

  Also in the conventional disk device 110, the drive mechanism of the tray 120, the tray holder 130, the clamp arm 140, and the slide member 150 has the same configuration as that of the embodiment of the present invention described later, and thus the description thereof is omitted.

  Further, the positioning on the plane of the cartridge 101 and the positioning in the height direction are the same as in the embodiment of the present invention, and thus the description thereof is omitted.

  The method for pressing the cartridge 101 is different from the embodiment of the present invention. As shown in FIGS. 15 and 17A, the clamp arm pressing spring 153 provided on the clamp arm cam 152 of the slide member 150 is in contact with the pin 142 of the clamp arm 140 and clamps the clamp arm 140. Is energized.

  However, since the position of the lower surface of the pin 142 of the clamp arm 140 is abutted against the clamp arm cam 152 and the position is regulated, the clamp arm 140 and the tray holder 130 are not in contact and are urged in the clamping direction. The spring force is received by the slide member 150 and is not transmitted to the tray holder 130.

  Therefore, as shown in FIG. 15, the tray holder cam 151 of the slide member 150 is also provided with a tray holder pressing spring 154 that comes into contact with the four pins 131 of the tray holder 130, and the tray holder 130 is lowered. The tray holder 130 is biased downward.

  As shown in FIG. 17B, there is a gap between the lower surface of the four pins 131 of the tray holder 130 and the tray holder cam 151 of the slide member 150, and the four pins 131 move in the height direction. Position restriction is not performed, and positioning of the tray holder 130 in the height direction is performed by contact with the tray 120.

That is, since the tray holder 130 is positioned by the tray 120, the tray holder 130 needs a spring that presses the cartridge 101. As shown in FIG. 16, the plate spring 156 is provided in two places, and the cartridge 101 is a plate spring. 156 is pressed against the tray 120.
JP 2002-304796 A

  However, the cartridge pressing mechanism of the conventional disk device as described above has the following problems.

  The cartridge 101 is pressed by a leaf spring 156 provided on the tray holder 130, and the clamp arm cam 152 and the tray holder cam 151 of the slide member 150 are clamped to the clamp arm press for positioning the clamp arm 140 and the tray holder 130. The spring 153 and the tray holder pressing spring 154 were required.

  That is, two pressing springs 153 of the clamp arm 140, four pressing springs 154 of the tray holder 130, and two pressing springs 156 of the cartridge 101 are used to press and position the cartridge 101 and clamp the disk 102. A total of 8 springs are required.

  Therefore, the number of necessary springs is large and the cost is increased. Further, since each component is urged by each spring, the urging force becomes large when combined, and thus a large driving force is required.

  The present invention has been made to solve the above-described problems, and can reduce the cost by reducing the number of parts, and can reduce the total spring force and drive with a small driving force. It is an object of the present invention to provide a cartridge pressing mechanism for a disk device.

  A cartridge pressing mechanism for a disk device according to a first aspect of the present invention includes a tray on which a cartridge storing a disk is placed, a holder member that is guided by the device main body so as to be movable up and down, and holds the tray so that it can be loaded and unloaded. A clamp member for clamping the disk to a disk rotating means fixed to the apparatus main body and swingably supported by the holder member; and a holder member and the clamp member guided by the apparatus main body so as to be slidable in the loading / unloading direction of the tray And a drive means for slidingly driving the tray and the slide member, the tray on which the cartridge is placed is carried into the apparatus by the drive means, and the holder member is lowered together with the tray by the slide member. The height of the tray and the position of the cartridge by the positioning member provided in the apparatus main body. In the disk device in which the disk member is mounted on the disk rotating means by swinging the clamp member downward by the slide member, the clamp member presses the holder member by a spring that biases the clamp member in a clamping direction, The holder member presses the cartridge, and the cartridge presses the tray, whereby the tray, the cartridge, the holder member, and the clamp member are positioned with respect to the positioning member.

  As described above, the present invention provides a tray on which a cartridge containing a disk is placed, a holder member that is guided up and down by the apparatus body, and holds the tray so that it can be loaded and unloaded, and a holder member that can swing freely. A clamp member that clamps the disk to a disk rotating means that is supported and fixed to the apparatus main body, and a slide member that is guided by the apparatus main body so as to be slidable in the loading / unloading direction of the tray and that drives the holder member and the clamping member with a cam And a drive means for slidingly driving the tray and the slide member, the tray on which the cartridge is placed is carried into the apparatus by the drive means, and the holder member is lowered together with the tray by the slide member, and is provided in the apparatus main body. The positioning member determines the height of the tray and the cartridge position, and the slide member clamps the clamp member. In the disk device that swings downward and mounts the disk on the disk rotating means, the clamp member presses the holder member and the holder member presses the cartridge by a spring that biases the clamp member in the clamping direction. Since the cartridge presses the tray so that the tray, cartridge, holder member, and clamp member are positioned with respect to the positioning member, only a spring that slightly biases the clamp member in the clamping direction is used. , Trays, cartridges, holder members, and clamp members can all be positioned. Therefore, the cost can be reduced by reducing the number of parts, and the total required compared to the case where springs are provided separately. The spring force can be reduced, and it can be driven with a small driving force. It is possible.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

  1 to 3 show an embodiment of a disk device having a cartridge pressing mechanism according to the present invention. FIG. 1 is a perspective view showing a state where a tray is in a carrying-out position for placing a cartridge. FIG. FIG. 3 is a perspective view showing a state in which the loaded tray is at the carry-in position, and FIG. 3 is a perspective view showing a state in which the tray is lowered and the cartridge is positioned at the disk loading position (recording / reproducing position).

  The disk device 10 having the cartridge pressing mechanism is guided by a tray 20 on which the cartridge 1 containing the disk 2 is placed and a base (device main body) 11 of the device so as to be able to move up and down, and the tray 20 can be carried in and out. A tray holder 30 held by the tray holder 30, a clamp arm 40 that is supported by the tray holder 30 in a swingable manner and clamps the disk 2 on a spindle motor 70 fixed to the base 11, and a tray 20 is loaded into and removed from the base 11. The slide member 50 is slidably guided and includes a slide member 50 that drives the tray holder 30 and the clamp arm 40 with a cam, and drive means 60 that slide-drives the tray 20 and the slide member 50.

  The disk device 10 also includes a positioning pin provided on the base 11 by loading the tray 20 on which the cartridge 1 is placed into the device by the driving means 60 and lowering the tray holder 30 together with the tray 20 by the slide member 50. 15, the height of the tray 20 and the position of the cartridge 1 are determined, and the clamp arm 40 is swung downward by the slide member 50 to mount the disk 2 on the spindle motor 70.

  In the disk device 10, the clamp arm 40 presses the tray holder 30 by the spring 53 that biases the clamp arm 40 in the clamping direction, the tray holder 30 presses the cartridge 1, and the cartridge 1 holds the tray 20. By pressing, the tray 20, the cartridge 1, the tray holder 30, and the clamp arm 40 are positioned with respect to the positioning pin 15.

  As shown in FIG. 4, the tray 20 includes a placement surface 21 on which the cartridge 1 is placed on the upper surface.

  The tray 20 has two through-holes 22 for height and positioning at positions that coincide with predetermined reference holes formed on the bottom surface of the cartridge 1 when the cartridge 1 is placed on the placement surface 21. I have.

  Further, the tray 20 is provided with four convex portions 23 for positioning the height of the cartridge 1 by receiving a downward pressing force from the cartridge 1 described later on the mounting surface 21.

  The tray 20 is carried into and out of the base (device main body) 11 by driving means 60 (details omitted) having a motor provided on the base 11.

  As shown in FIGS. 5 and 6, the tray holder 30 includes four pins 31 on the left and right, and three of the pins 31 engage with the three elongated grooves 12 formed on the left and right of the base 11. Thus, the tray holder 30 is guided to the base 11 so as to be movable up and down.

  Further, the tray holder 30 is provided with guide portions 32 that support both side portions of the tray 20 and guide them so as to be able to be loaded and unloaded on both the left and right sides.

  Furthermore, the tray holder 30 includes four convex portions 33 that press the cartridge 1 described later downward.

  As shown in FIGS. 7 and 8, the clamp arm 40 includes two swing shafts 41 that are pivotally supported by two bearing portions 34 formed on the ceiling portion of the tray holder 30. It swings around the swing shaft 41.

  The clamp arm 40 includes two pins 42 on the left and right sides. Further, the clamp arm 40 has two contact portions 35 formed at the corresponding positions of the tray holder 30 on the inner side of the pins 42 so as to face downward. Two convex portions 43 to be pressed are provided.

  Further, the clamp arm 40 clamps the disk 2 to the spindle motor 70 (see FIG. 11) fixed to the base 11 when the tray 20 is lowered and the cartridge 1 is positioned at the loading position (recording / reproducing position) of the disk 2. A clamper 45 is provided.

  As shown in FIGS. 8 to 10, the slide member 50 includes a right slide member 50 a and a left slide member 50 b, and both the slide members 50 a and 50 b are arranged in the direction in which the tray 20 is carried into and out of the base 11. Guided slidably.

  Further, the left and right slide members 50 a and 50 b are connected to each other by a connection lever 55 disposed at the bottom of the base 11. When the right slide member 50a is slid in the arrow A direction by the drive gear 61 of the drive means 60 having a motor provided on the base 11, the left slide member 50b is slid in the opposite B direction. It is like that.

  The slide members 50a and 50b include slot-shaped tray holder cams 51a and 51b having horizontal portions and inclined portions for accommodating the left and right four pins 31 of the tray holder 30, and the left and right two of the clamp arm 40. Slot-shaped clamp arm cams 52a and 52b having a horizontal portion and an inclined portion for accommodating the pin 42 are provided.

  Therefore, when the slide members 50a and 50b are slid in the directions of arrows A and B, the tray holder cams 51a and 51b cam drive the pins 31 of the tray holder 30 to lower the tray holder 30, and the clamp arm The cams 52a and 52b drive the pin 42 of the clamp arm 40 to lower the clamp arm 40.

  Further, as shown in FIG. 10, the slide members 50a and 50b include clamp arm pressing springs 53a and 53b (the clamp arm pressing spring 53b of the sliding member 50b is not shown) on the clamp arm cams 52a and 52b.

  The clamp arm pressing springs 53a and 53b press the pin 42 of the clamp arm 40 downward when the clamp arm 40 is lowered and the pin 42 reaches a predetermined position of the clamp arm cams 52a and 52b. .

  The predetermined position is a position where the tray holder 30 is lowered to the disk loading position of the cartridge 1 and the clamper 45 of the clamp arm 40 clamps the disk 2 to the spindle motor 70, that is, a position where recording / reproducing of the disk 2 is performed. That is.

  As shown in FIGS. 5 and 11, the tray 20 on which the cartridge 1 is placed is carried into the apparatus (driving unit 60) into the apparatus (main body) 11 and lowered together with the tray holder 30 by the slide members 50a and 50b. In some cases, positioning pins 15 for determining the height of the tray 20 and the position of the cartridge 1 are provided.

  The positioning pin 15 is disposed at a position corresponding to the through hole 22 of the tray 20 carried into the apparatus. The positioning pin 15 supports the lower surface of the peripheral portion of the through hole 22 to center the tray height positioning portion 16 that determines the height position of the tray 20 and the reference hole on the bottom surface of the cartridge 1, and thereby the plane of the cartridge 1. And a cartridge positioning portion 17 for determining the position.

  Next, the operation of the cartridge pressing mechanism in the disk device 10 will be described.

  As shown in FIG. 12A, when the clamp arm 40 is lowered along the clamp arm cam 52a of the slide member 50a and the pin 42 reaches the recording / reproducing position of the disk 2, the pin 42 of the clamp arm 40 is used. Is pressed downward by the clamp arm presser spring 53a. The same applies to the pin 42 on the slide member 50b side.

  That is, when the pin 42 is pressed downward by the clamp arm pressing springs 53a and 53b of the slide members 50a and 50b, the clamp arm 40 is pressed in the direction in which the disk 2 is clamped (that is, downward).

  At this time, as shown in FIG. 12A, a gap d1 exists between the lower surface of the pin 42 of the clamp arm 40 and the clamp arm cam 52a. That is, the slide member 50 a does not receive the downward pressing force of the clamp arm 40. The same applies to the pin 42 on the slide member 50b side.

  Therefore, the downward pressing force of the clamp arm 40 is transmitted to the tray holder 30 when the left and right convex portions 43 of the clamp arm 40 press the corresponding two contact portions 35 of the tray holder 30 downward ( (See FIG. 7). Thereby, the tray holder 30 is pressed downward.

  As shown in FIG. 12B, a gap d2 exists between the lower surface of the pin 31 of the tray holder 30 and the tray holder cam 51a. All four pins 31 of the tray holder 30 are similarly configured. For this reason, the slide members 50 a and 50 b do not receive the downward pressing force of the tray holder 30.

  Therefore, the downward pressing force of the tray holder 30 is transmitted to the cartridge 1 when the four convex portions 33 of the tray holder 30 press the upper surface of the cartridge 1 downward (see FIG. 6). As a result, the cartridge 1 is pressed downward.

  The downward pressing force of the cartridge 1 is transmitted to the tray 20 when the lower surface of the cartridge 1 presses the four convex portions 23 of the tray 20 downward (see FIG. 4). As a result, the tray 20 is pressed downward.

  The downward pressing force of the tray 20 is finally transmitted to the base (device main body) 11 when the lower surface of the peripheral portion of the through hole 22 of the tray 20 presses the tray height positioning portion 16 of the positioning pin 15 downward. (See FIGS. 5 and 11).

  Therefore, the tray height positioning portion 16 of the positioning pin 15 provided on the base (device main body) 11 supports the lower surface of the peripheral portion of the through hole 22 of the tray 20 pressed downward, so that the height of the tray 20 is positioned. Is done.

  Further, the four convex portions 23 of the tray 20 support the lower surface of the cartridge 1 that is pressed downward, so that the height of the cartridge 1 is positioned. The planar position of the cartridge 1 is positioned by the cartridge positioning portion 17 of the positioning pin 15 centering the reference hole on the bottom surface of the cartridge 1.

  Further, the tray holder 30 is positioned by the upper surface of the cartridge 1 supporting the four convex portions 33 of the tray holder 30 pressed downward.

  Also, the clamp arm 40 is positioned by the left and right contact portions 35 of the tray holder 30 supporting the left and right convex portions 43 of the clamp arm 40 pressed downward.

  The downward pressing force for all these positionings is exerted on the pin 42 of the clamp arm 40 by the clamp arm pressing springs 53a and 53b provided on the clamp arm cams 52a and 52b of the slide members 50a and 50b. It has occurred.

  When the above is schematically expressed, as shown in FIG. 13A, the clamp arm 40 presses the tray holder 30 by a clamp arm pressing spring 53 that biases (presses) the clamp arm 40 in the clamping direction. Then, the tray holder 30 presses the cartridge 1, and the cartridge 1 presses the tray 20 to be positioned at a predetermined position of the base (device main body) 11.

  On the other hand, in the case of the cartridge pressing mechanism in the conventional disk device 110, as shown in FIG. 13B, in addition to the clamp arm pressing spring 153 that biases (presses) the clamping arm 140 in the clamping direction, A tray holder pressing spring 154 that biases (presses) the tray holder 130 presses the tray holder 130, a cartridge pressing spring 156 that biases (presses) the cartridge 101 presses the cartridge 101, and the cartridge 101 presses the tray 120. Thus, the base (device main body) 111 is positioned at a predetermined position.

  As described above, the cartridge pressing mechanism according to the present invention requires a smaller number of pressing springs than the conventional cartridge pressing mechanism, so that the cost can be reduced by reducing the number of parts.

  Further, the total spring force required for the entire presser can be reduced by successively transmitting the spring force of the presser spring. Thereby, it is possible to reduce the driving force of the cartridge pressing mechanism.

FIG. 3 is a perspective view showing a disc device including a cartridge pressing mechanism according to an embodiment of the present invention in a state where a tray is at an unloading position. It is a perspective view of the state which has the tray of embodiment of FIG. 1 in a carrying-in position. FIG. 2 is a perspective view showing a state in a disk loading position in the embodiment of FIG. 1. It is a perspective view of a tray. It is an expansion | deployment perspective view which shows the guide mechanism of a tray holder. It is the perspective view seen from the bottom face side of a tray holder. It is a perspective view which shows the attachment structure of a clamp arm and a tray holder. FIG. 6 is a developed perspective view showing a cartridge transport mechanism. It is the perspective view seen from the bottom face side which shows the connection structure of a slide member. It is a side view which shows the tray holder by a slide member, and the drive mechanism of a clamp arm. It is a development perspective view showing a tray and a cartridge positioning mechanism. It is an enlarged side view which shows the cam part of a slide member. It is a schematic diagram which shows the difference of the cartridge pressing method of this invention and a prior art example. It is a perspective view of the state in the disk loading position which shows an example of the conventional disk apparatus. It is a side view which shows the tray holder and clamp arm drive mechanism of a prior art example. It is the perspective view seen from the bottom face side of the tray holder of a prior art example. It is an enlarged side view which shows the cam part of the slide member of a prior art example.

Explanation of symbols

1 cartridge 2 disk 10 disk device 11 base (device main body)
12 Vertical slot 15 Positioning pin 16 Tray height positioning portion 17 Cartridge positioning portion 20 Tray 21 Placement surface 22 Through hole 23 Protruding portion 30 Tray holder 31 Pin 32 Guide portion 33 Protruding portion 34 Bearing portion 35 Contact portion 40 Clamp arm 41 Oscillating shaft 42 Pin 43 Projection 45 Clamper 50a, 50b Slide member 51a, 51b Tray holder cam 52a, 52b Clamp arm cam 53a, 53b Clamp arm presser spring 55 Connecting lever 60 Driving means 61 Driving gear 70 Spindle motor (disk) Rotating means)

Claims (1)

A tray on which a cartridge containing a disk is placed, a holder member guided by the apparatus main body so as to be movable up and down, a holder member that holds the tray so that it can be carried in and out, and a swingable support by the holder member, and is fixed to the apparatus main body. A clamp member that clamps the disc to the disc rotating means, a slide member that is slidably guided in the tray loading / unloading direction by the apparatus main body, a slide member that drives the holder member and the clamp member with a cam, and a slide drive for the tray and the slide member Driving means for carrying the tray on which the cartridge is placed into the apparatus by the driving means, the holder member is lowered together with the tray by the slide member, and the height of the tray is adjusted by the positioning member provided in the apparatus main body. Determine the cartridge position and swing the clamp member downward with the slide member. In the disk device to be mounted on disc rotating means risk,
The clamp member presses the holder member by the spring that biases the clamp member in the clamping direction, the holder member presses the cartridge, and the cartridge presses the tray. A cartridge pressing mechanism for a disk device, wherein the cartridge, the holder member, and the clamp member are positioned.

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