JP2007042189A - Loading mechanism for disk device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To change the speed of a tray from one section to another during tray loading/unloading by dividing the loading/unloading path of the tray into a plurality of sections. <P>SOLUTION: This mechanism is provided with a tray (60) for placing a recording medium, and a driving means (30) for loading/unloading the tray (60) into/from a device main body (20). The device main body (20) is provided with a sliding member 40 slid in a direction orthogonal to the loading/unloading direction of the tray (60) and equipped with an engaging part (41), and detecting means (35) and 36 for detecting the position of the sliding member (40). The tray (60) is provided with a cam (70) engaged with the engaging part (41) to divide an loading/unloading path into a plurality of sections and to move the sliding member (40) by a connection part between the sections. When the detecting means (35) and 36 detect the movement of the sliding member (40) after the loading/unloading of the tray (60) is started, the loading/unloading speed of the tray (60) by a driving means (30) is switched according to the section of the tray (60) corresponding to a position after the movement. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a tray loading mechanism in a disk device that performs reproduction or recording / reproduction of a disk such as an optical disk, and in particular, the tray loading / unloading path is divided into a plurality of sections, and the tray speed is adjusted in each section when the tray is loaded / unloaded. The present invention relates to a loading mechanism of a disk device having means for changing.

  A conventional disk device is provided with a cam on the back of the tray and a slide member that can move laterally on the chassis, and the position of the slide member is detected by a single detection switch to detect the tray loading position. (Hereinafter referred to as Conventional Example 1) (see, for example, Patent Document 1).

In addition, the rotary disk changer device uses an encoder to detect the moving position of the disk tray, brakes the loading motor before the stopping position of the disk tray, controls the speed, and smoothes at the stopping position. (Hereinafter referred to as Conventional Example 2) (for example, see Patent Document 2).
Japanese Patent Laid-Open No. 2003-217211 JP-A-6-338119

  However, the conventional apparatus as described above has the following problems.

  That is, in Conventional Example 1, although the tray loading position is detected, the tray speed is not changed when the tray is loaded and unloaded, and the tray is loaded and unloaded at a constant speed.

  As described above, when the tray loading / unloading speed is constant, the tray suddenly stops when the tray is loaded / unloaded, or the tray suddenly starts moving. there were.

  Further, in the conventional example 2, an encoder is necessary to control the tray speed, and there is a problem that the number of parts increases and the cost increases.

  SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and is a disc device that can divide a tray carry-in / carry-out path into a plurality of sections and change the speed of the tray in each section when the tray is carried in / out. An object of the present invention is to provide a loading mechanism.

  A loading mechanism for a disk device according to a first aspect of the present invention is a loading mechanism for a disk device comprising a tray on which a recording medium is placed, and a driving means for carrying the tray into and out of the device body. A slide member that is slidable in a direction orthogonal to the tray loading / unloading direction and includes an engaging portion, and a detecting means for detecting the position of the sliding member are provided, and the tray is engaged with the engaging portion. In addition, the loading / unloading path is divided into a plurality of sections, a cam is provided for moving the slide member at a connection portion between the sections, and after the tray starts to be loaded or unloaded, the detection means detects the movement of the slide member. When the tray loading and unloading speed by the driving means can be switched according to the section of the tray corresponding to the position after the movement, Is shall.

  According to a second aspect of the present invention, there is provided a loading mechanism for a disk device, comprising: a tray on which a recording medium is placed; and a driving unit that carries the tray into and out of the device main body. A slide member that is slidable in a direction orthogonal to the tray loading / unloading direction and includes an engagement portion, and first and second detection means for detecting the position of the slide member are provided, Engage with the engaging portion, and divide the carry-in / carry-out path into the vicinity of the carry-in position, the carry-out position, and the other, and restrict the slide member to the second position in the sections near the carry-in position and the carry-out position In addition, the slide member is restricted to the third position in other sections, and a cam for moving the slide member to the first position immediately before the loading position is provided to load the tray. After the start of unloading, when the slide member is in the second position, the second detecting means detects this to lower the tray loading / unloading speed by the driving means, and the slide member is When in the third position, the second detection means detects this, and the tray loading / unloading speed by the driving means is increased.

  A loading mechanism for a disk device according to a third aspect of the present invention is the loading mechanism for a disk device according to the second aspect, wherein the recording medium is a disk-shaped recording medium, and a spindle for mounting and rotating the disk on the apparatus body. A traverse base for holding a motor and a pickup for recording or reproducing information on the disc is provided so as to be movable up and down for attaching and detaching the spindle motor to the disc placed on the tray, and engages with a protrusion provided on the traverse base. The slide member is provided with a cam for driving the traverse base to move up and down, and when the slide member moves in the first position and reaches the carry-in position, the first detection means is provided. This is detected, and the drive by the driving means is carried out from the loading of the tray to the slide member. It switched id, in which the sliding member by the slide driving by the driving means, characterized in that for mounting the spindle motor in the disk is raised the traverse base.

  As described above, the present invention provides a loading mechanism for a disk device including a tray on which a recording medium is placed and a drive unit that loads and unloads the tray into and from the apparatus main body, and is orthogonal to the loading and unloading direction of the tray. And a detecting means for detecting the position of the sliding member, the tray is engaged with the engaging portion, and a loading / unloading path is provided. When the detection means detects the movement of the slide member after providing a cam for moving the slide member at a connection portion between the sections divided into a plurality of sections and starting to carry in or out the tray, the position after the movement Since the tray loading / unloading speed by the driving means can be switched according to the section corresponding to the tray, for example, the vicinity of the loading position and the vicinity of the unloading position. In the meantime, the tray loading / unloading speed can be reduced compared to other sections, and this allows smooth operation when starting and stopping the tray movement. Therefore, the appearance is good, noise can be reduced, and the quality can be improved.

Hereinafter, embodiments of the present invention will be described with reference to FIGS.
FIG. 1 is a perspective view showing a disc apparatus with a loading mechanism according to an embodiment of the present invention, in which the tray is further removed from the carry-out position in the carry-out direction, and FIG. 2 is a perspective view seen from the bottom side. FIG. 4 is a perspective view showing a state in which the tray is at a carry-in position.

  The disk device 10 includes an apparatus main body 20 and a tray 60 that is carried into and out of the apparatus main body 20.

  When the tray 60 is in the unloading position, a cartridge containing a disk (optical disk) (not shown) or a plurality of single disks (optical disks) can be placed on the tray 60.

  When the tray 60 is in the carry-in position, a disk (optical disk) contained in the cartridge or a single disk (optical disk) is positioned at a predetermined position of the disk device 10 and is mounted on the spindle motor.

  As shown in FIGS. 2 and 5, a shaft (shaft member) 61 extending along the loading / unloading direction is provided on the right rear surface of the tray 60 toward the apparatus main body 20. As shown in FIGS. 1 and 4, the shaft 61 is slidably supported by a bearing 21 provided on the right side of the apparatus main body 20.

  Also, as shown in FIGS. 1 and 3, the left edge 62 of the tray 60 is guided by the guide portion 22 provided on the left side of the apparatus body 20 with its height direction regulated. That is, the plurality of guide protrusions 22a support the left edge 62 from below, and the plurality of guide claws 22b regulate the upper position of the left edge 62 so that the left edge 62 of the tray 60 22 is guided along the reciprocating direction.

  Thereby, the tray 60 is held by the apparatus main body 20 so as to be able to be carried in and out in a state where the tray 60 is kept horizontal.

  As shown in FIGS. 2 and 5, a rack 63 extending in parallel with the shaft 61 is formed on the right rear surface of the tray 60. As shown in FIG. 5, the rack 63 meshes with the tray drive gear 33 of the drive means 30 provided in front of the apparatus body 20.

  As shown in FIG. 4, the drive unit 30 includes a loading motor 31, a speed reduction mechanism 32, a tray drive gear 33, and a slide drive gear 34. The tray drive gear 33 is driven by the rotation of the loading motor 31 being decelerated by the speed reduction mechanism 32, so that the tray 60 is driven between the carry-out position and the carry-in position by the tray drive gear 33. The

  As shown in FIGS. 1 and 4, the apparatus main body 20 is provided with a slide member 40 so as to be slidable in a direction orthogonal to the loading / unloading direction of the tray 60. The slide member 40 includes a pin (engagement portion) 41 standing upward. The pin 41 engages with a cam 70 provided on the back surface of the tray 60 as shown in FIGS. The member 40 is guided by the cam 70 from the carry-out position of the tray 60 to immediately before the carry-in position.

  Further, the slide member 40 is slid in the direction indicated by the arrow A in FIG. 4 when the pin 41 comes into contact with the inclined switching portion 72 of the cam 70 immediately before the tray 60 is carried in. By this movement of the slide member 40, the rack 42 formed on the slide member 40 as shown in FIGS. 4, 5, and 6 meshes with the slide drive gear 34 of the drive means 30, and the rack 63 of the tray 60. Is disengaged from the tray drive gear 33, and the drive is switched.

  The tray 60 is driven by the pin 41 of the slide member 40 that is further slid in the direction of arrow A in FIG. 4 by the slide drive gear 34, and is positioned by the cam portion 71 orthogonal to the loading / unloading direction of the tray 60 at the loading position. Is done.

  The disk device 10 is configured such that the carry-in / carry-out speed of the tray 60 can be switched according to the section by dividing the carry-in / carry-out path of the tray 60 into a plurality of sections and sliding the slide member 40 at the connection portion between the sections. Is.

  Therefore, as shown in FIG. 7, the cam 70 of the tray 60 continues to the cam portion 71 orthogonal to the loading / unloading direction of the tray 60 at the loading position, the inclined switching portion 72 following the cam portion 71, and the switching portion 72. A cam portion 73 arranged in the vicinity of the carry-in position, along the carrying-in / out direction of the tray 60, a cam portion 77 located near the carry-out position, on the extension line of the cam portion 73, and the cam portions 73, 77 A cam portion 75 extending in parallel, an inclined connecting portion 74 connecting the cam portion 73 and the cam portion 75, an inclined connecting portion 76 connecting the cam portion 75 and the cam portion 77, and an extension line of the cam portion 75 at the unloading position. The cam portion 79 is positioned, and the cam portion 77 and an inclined connection portion 78 connecting the cam portion 79 are provided.

  That is, the cam portion 71 corresponds to the loading position of the tray 60, the switching portion 72 corresponds to a section immediately before the loading position of the tray 60, the cam portion 73 corresponds to a section near the loading position of the tray 60, The cam portion 77 corresponds to a section near the unloading position of the tray 60, and the cam portion 75 corresponds to the other section of the tray 60. The cam portion 79 is a section in which the tray 60 is pushed by hand to activate the driving unit 30 when the tray 60 is carried in.

  Further, as shown in FIGS. 4, 6, and 7, the pin 41 of the slide member 40 is switched on the apparatus main body 20 between the tray drive gear 33 and the slide drive gear 34 as described above. When the switching member 72 is positioned, the projection 45 formed on the slide member 40 is switched on and off before and after this position to detect that the slide member 40 is in this position (first position). A first detection switch 35 is provided.

  That is, the first detection switch 35 can detect that the tray 60 has passed through the first position to the carry-in position by being switched from off to on by the convex portion 45 of the slide member 40. it can.

  Further, the first detection switch 35 detects that the tray 60 has passed through the first position and started to be carried out from the carry-in position by being switched from on to off by the convex portion 45 of the slide member 40. Can do.

  In addition, when the pin 41 of the slide member 40 is positioned on the cam portion 73 and the cam portion 77 in the apparatus main body 20, the slide member 40 is turned on by being removed from the hole 46 formed in the slide member 40. When the pin 41 of the slide member 40 is located at the cam part 75 and the cam part 79 when it is detected that it is in the position (second position), it is turned off by the hole 46 formed in the slide member 40. A second detection switch 36 is provided for detecting that the slide member 40 is in this position (third position).

  That is, the second detection switch 36 is switched from OFF to ON by the hole 46 of the slide member 40, so that the slide member 40 is in the second position (cam portion 73 or cam portion 77) and the tray 60 is loaded. It can be detected that the vehicle is in a section near the position or a section near the carry-out position.

  Further, the second detection switch 36 is switched from on to off by the hole 46 of the slide member 40, so that the slide member 40 is in the third position (the cam portion 75 or the cam portion 79), and the tray 60 is moved to the second detection switch 36. It can be detected that it is in a section other than or a hand-pressed section.

  7 to 11 show the relationship between the tray 60, the slide member 40, and the detection switches 35 and 36 during the loading / unloading operation of the tray 60. FIG. The tray 60 shows only the cam 70, and the position (section) detection during the carry-in operation of the tray 60 will be described with reference to FIGS.

  FIG. 7 shows a state in which the tray 60 is in the carry-out position, and the slide member 40 is restricted to the third position by the cam portion 79 of the tray 60.

  At this time, both the first detection switch 35 and the second detection switch 36 are in an OFF state, whereby the second detection switch 36 causes the slide member 40 to move to the third position (cam portion 79). Yes, it is detected that the tray 60 is in the manual pushing section.

  FIG. 8 shows a state in which the tray 60 is in a position where it is detected that the tray 60 has been pushed by hand. When the tray 60 is manually pushed from the carry-out position and moved to the position shown in FIG. 8, the slide member 40 is moved to the second position by the connection portion 78 of the tray 60, and this position (second position) is caused by the cam portion 77. Position).

  At this time, the first detection switch 35 remains off. On the other hand, the second detection switch 36 comes into contact with the slide member 40 and is turned on, so that the slide member 40 is in the second position (cam portion 77) and the tray 60 is in the vicinity of the carry-out position. Detect that.

  As a result, the loading motor 31 of the driving unit 30 is activated, and the loading of the tray 60 is started via the tray driving gear 33.

  In addition, in this section where the second detection switch 36 is in the ON state (section near the unloading position), the loading motor 31 is driven at a low speed to keep the loading / unloading speed of the tray 60 at a low speed. Move in the loading direction.

  Due to the low speed movement in this section, the loading and unloading operation of the tray 60 can be smooth and improved in appearance, noise can be reduced, and the quality can be improved.

  FIG. 9 shows a state in which the tray 60 is in a position moved in the carry-out direction beyond a section near the carry-out position. When the tray 60 moves to this position, the slide member 40 moves to the third position by the connecting portion 76 of the tray 60 and is restricted to this position (third position) by the cam portion 75.

  At this time, the first detection switch 35 remains off. On the other hand, when the second detection switch 36 is switched off by the hole 46 of the slide member 40, the slide member 40 is in the third position (cam portion 75), and the tray 60 is in the other section. Detect that.

  In this section where the second detection switch 36 is in the off state (other sections), the tray 60 is moved in the loading direction at a high speed by driving the loading motor 31 at a high speed to keep the loading / unloading speed of the tray 60 at a high speed. Moving.

  Due to the high-speed movement of this section, the time for loading and unloading the tray 60 can be shortened as a whole.

  FIG. 10 shows a state in which the tray 60 is in a position moved to a section near the carry-in position a predetermined distance before the carry-in position. When the tray 60 moves to this position, the slide member 40 moves to the second position by the connecting portion 74 of the tray 60 and is regulated to this position (second position) by the cam portion 73.

  At this time, the first detection switch 35 remains off. On the other hand, when the second detection switch 36 contacts the slide member 40 and is turned on, the slide member 40 is in the second position (cam portion 73), and the tray 60 is in the section near the carry-in position. Detect that.

  In this section where the second detection switch 36 is in an on state (section near the loading position), the loading motor 31 is driven at a low speed to keep the loading / unloading speed of the tray 60 at a low speed. Move to.

  Due to the low speed movement in this section, the loading and unloading operation of the tray 60 can be smooth and improved in appearance, noise can be reduced, and the quality can be improved.

  FIG. 11 shows a state in which the tray 60 is in a position to move the section immediately before the carry-in position toward the carry-in position. When the tray 60 moves to this position, the slide member 40 moves to the first position by the switching unit 72 of the tray 60.

  At this time, the second detection switch 36 remains on. On the other hand, the first detection switch 35 is in contact with the slide member 40 and is turned on to detect that the slide member 40 is in the first position and the tray 60 is in the section immediately before the carry-in position. .

  As a result, as shown in FIGS. 4 and 5, the rack 42 of the slide member 40 meshes with the slide drive gear 34 of the drive means 30, and the rack 63 of the tray 60 is detached from the tray drive gear 33, The drive is switched.

  The tray 60 is driven by the pin 41 of the slide member 40 that is further slid in the direction of arrow A in FIG. 4 by the slide drive gear 34, and is positioned by the cam portion 71 orthogonal to the loading / unloading direction of the tray 60 at the loading position. Is done.

  As described above, the position (section) at the time of the carry-in operation of the tray 60 is detected. Further, at the time of carrying out the tray 60, the position (section) of the tray 60 is detected by an operation reverse to the above.

  FIG. 12 shows operation modes of the first detection switch 35 and the second detection switch 36. As shown in FIG. 12, the first detection switch 35 can detect whether or not the slide member 40 has passed the first position, that is, whether or not the tray 60 is in the carry-in position.

  In addition, the second detection switch 36 counts a change in which the slide member 40 is alternately switched between the second position and the third position from the state in which the tray 60 is in the carry-in position. A plurality of positions at which the speed is changed (section of the carry-in / carry-out path of the tray 60) can be detected.

  The first detection switch 35 detects the absolute position of the tray 60. On the other hand, the second detection switch 36 detects the relative position of the tray 60.

  That is, when the second detection switch 36 is in the OFF state, it can detect that the slide member 40 is in the third position, but can detect whether it is the cam portion 75 or the cam portion 79. Therefore, it cannot be determined whether the tray 60 is in the other section or the hand-pressed section.

  In addition, the second detection switch 36 can detect that the slide member 40 is in the second position even in the on state, but detects whether the slide member 40 is in the cam portion 73 or the cam portion 77. It cannot be determined whether the tray 60 is in the section near the carry-in position or in the section near the carry-out position.

  Therefore, when the power is turned off during the loading / unloading operation of the tray 60, the second detection switch 36 cannot determine the position of the tray 60, so the driving means 30 temporarily returns the tray 60 to the loading position, After detecting that the tray 60 is in the carry-in position by the first detection switch 35 (absolute position is detected), the carry-in / out operation of the tray 60 is resumed.

  In addition, when the tray 60 is loaded, the disk device 10 is engaged when the rack 42 of the slide member 40 is engaged with the slide drive gear 34 of the drive means 30 and the slide member 40 is further driven in the direction of arrow A in FIG. The traverse base 50 is driven up.

  FIG. 13 shows a state in which the traverse base is in the retracted position inclined downward, and FIG. 14 shows a state in which the traverse base is raised and is in the disk mounting position.

  As shown in FIGS. 13 and 14, the traverse base 50 includes four damper members 55, and the two rear damper members 55 a are supported by the apparatus body 20, and this damper member 55 a is deformed, The traverse base 50 is held by the apparatus main body 20 so that the front portion can be moved up and down in a cantilevered manner.

  The two front damper members 55b are supported by a traverse arm 56 that drives the front portion of the traverse base 50 up and down. The traverse arm 56 is provided with pins (projections) 57 a and 57 b that engage with cams 43 a and 43 b formed on the slide member 40.

  When the tray 60 is loaded and the slide member 40 is driven in the direction of arrow A in FIGS. 13 and 14 by the slide drive gear 34, the traverse arm 56 has the pins 57a and 57b raised along the cams 43a and 43b. Thus, it is driven upward in the direction of arrow B in FIG.

  When the traverse arm 56 is driven in the direction of arrow B, the traverse base 50 is also driven up in the direction of arrow B, and a disk (optical disk) is clamped (not shown) to the spindle motor 51 fixed to the traverse base 50. It is clamped by.

  At the time of carrying out the disc (optical disc), an operation opposite to the above operation is performed, the traverse base 50 is driven downward, the disc (optical disc) is removed from the clamper, and is placed on the tray 60. Thereafter, it is carried out by the tray 60.

  Thus, in this disk device 10, the slide member 40, which is a part of the mechanism for detecting the position (section) of the tray 60, also serves as the lifting mechanism for the traverse base 50, and the number of parts as detection means increases. Can be minimized.

  Thereby, compared with the case where an encoder is used to control the speed of the tray, for example, the number of parts is small, and the cost can be reduced.

FIG. 4 is a perspective view showing a disc device with a loading mechanism according to an embodiment of the present invention with the tray further removed from the carry-out position in the carry-out direction for explanation. It is the perspective view seen from the bottom face side of FIG. It is a perspective view which shows the state which has a tray in a carrying-in position. It is a perspective view which expands and shows the principal part of FIG. It is the perspective view which looked at the tray and the slide member from the bottom side. It is the perspective view which looked at the tray and the slide member from the back side. It is a top view which shows the relationship between a cam, a slide member, and a detection switch when a tray exists in an unloading position. It is a top view which shows the relationship between a cam, a slide member, and a detection switch when a tray exists in the low speed area of the carrying-out position vicinity. It is a top view which shows the relationship between a cam, a slide member, and a detection switch when a tray exists in a high-speed area. It is a top view which shows the relationship between a cam, a slide member, and a detection switch when a tray exists in the low speed area near carrying-in position. It is a top view which shows the relationship between a cam, a slide member, and a detection switch when a tray exists in the switching position (section) just before a carrying-in position. It is a figure which shows the operation mode of the 1st, 2nd detection switch in the carrying in / out path | route of a tray. It is a perspective view which shows the state which has a traverse base in the retracted position which inclined below. It is a perspective view which shows the state which has a traverse base in a disc mounting position.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Disc apparatus 20 Apparatus main body 21 Bearing 22 Guide part 22a Guide protrusion 22b Guide claw 30 Driving means 31 Loading motor 32 Deceleration mechanism 33 Tray drive gear 34 Slide drive gear 35 First detection switch 36 Second detection switch 40 Slide member 41 pin (engagement part)
42 Rack 43a, 43b Cam 45 Projection 46 Hole 50 Traverse base 51 Spindle motor 52 Pickup 55 (55a, 55b) Damper member 56 Traverse arms 57a, 57b Pin (protrusion)
60 Tray 61 Shaft (shaft member)
62 Left edge 63 Rack 70 Cam 71, 73, 75, 77, 79 Cam part 72 Switching part 74, 76, 78 Connection part

Claims (3)

In a loading mechanism of a disk device comprising a tray on which a recording medium is placed, and drive means for carrying the tray into and out of the apparatus main body,
The apparatus main body is provided with a slide member that is slidable in a direction perpendicular to the carry-in / carry-out direction of the tray and includes an engaging portion, and a detection means that detects the position of the slide member,
The tray is provided with a cam that engages with the engaging portion, divides a loading / unloading path into a plurality of sections, and moves the slide member at a connecting portion between the sections,
When the detection means detects the movement of the slide member after starting to carry in or out the tray, the tray loading / unloading speed by the driving means is switched according to the section of the tray corresponding to the position after the movement. A loading mechanism for a disk device, characterized by being configured to be possible. In a loading mechanism of a disk device comprising a tray on which a recording medium is placed, and drive means for carrying the tray into and out of the apparatus main body,
The apparatus main body is provided with a slide member that is slidable in a direction perpendicular to the carry-in / carry-out direction of the tray and includes an engaging portion, and first and second detection means for detecting the position of the slide member. ,
The tray is engaged with the engaging portion, and the carry-in / carry-out path is divided into a vicinity of the carry-in position, a vicinity of the carry-out position, and the other, and the second slide member is moved in the sections near the carry-in position and the carry-out position. In the other section, the slide member is restricted to the third position, and a cam for moving the slide member to the first position immediately before the loading position is provided.
When the slide member is in the second position after starting to carry in or carry out the tray, the second detection means detects this, and lowers the tray carry-in / out speed by the drive means, and the slide A loading mechanism for a disk device, wherein the second detection means detects this when the member is at the third position, and the tray loading / unloading speed by the driving means is increased. . The recording medium is a disk-shaped recording medium;
The apparatus main body is provided with a traverse base for holding a spindle motor for mounting and rotating a disk and a pickup for recording or reproducing information on the disk so that the spindle motor can be attached to and detached from the disk mounted on the tray. ,
The slide member is provided with a cam that engages with a protrusion provided on the traverse base, and the slide member slides to raise and lower the traverse base.
When the slide member moves to the carry-in position by moving the first position, the first detection means detects this and switches the drive by the drive means from the carry-in of the tray to the slide of the slide member, 3. The loading mechanism for a disk device according to claim 2, wherein the slide member raises the traverse base by the slide drive by the drive means to mount the spindle motor on the disk.

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