JP3589703B2 - Disc changer device - Google Patents

Description

[0001]
[Industrial applications]
The present invention relates to a disc changer device capable of storing a plurality of magazines such as a laser disk and a compact disk, and more particularly, to an ejecting mechanism for discharging a stored magazine.
[0002]
[Prior art]
In a conventional disc changer device, the number of magazines that can be stored is usually one. FIG. 6 shows a general ejection mechanism. A lock pin 604 constantly urged to the left in the figure by a return spring 602 via a lock plate 603 when inserted into the storage position of the illustrated magazine 601 is a key type provided on the lower surface of the magazine case. Of the lock groove 605 is interposed in the jaw 606. Therefore, the ejection force of the eject plate 608 urged in the ejection direction (the lower side in the figure) by the ejection spring 607 is suppressed, and the magazine 601 is locked at the storage position.
[0003]
The slide link 609 rotated for disc selection by the electric device further pivots farther than the moving range related to disc selection by the magazine eject operation signal, and the release pin 610 provided at the end of the slide link 609 moves the lock plate 603. By pressing the engaging claw 611, the lock plate 603 is moved rightward in the figure to the position shown by the two-dot chain line.
[0004]
The lock pin 604 moves from the jaw 606 to the access portion 612 in the lock groove 605 as shown by a two-dot chain line, so that the lock pin 604 is disengaged from the magazine 601, and the magazine 601 is urged by the discharge spring 607. The eject plate 608 is pushed downward in the figure by the contact plate 613. In addition, even if the lock plate 603 is pushed by the manual lever 614 provided on the left side in the figure, the slope 615 at the tip acts to displace the lock plate 603 to the side via the protrusion 616. The engagement of the lock pin 604 can be released. The manual lever 614 is provided with a protection function so that the operation of ejecting the magazine is prevented when the disc is set at the playback position.
[0005]
[Problems to be solved by the invention]
However, as the number of disks increases and the number of magazine storage stages increases, it becomes practically difficult to provide a slide link mechanism having a slide link 609 rotated by the above-described electric device for each storage stage. Further, if the slide link mechanism is commonly used for each storage stage, each magazine cannot be operated individually. Furthermore, the extended portion of the moving range of the slide link required for discharging the magazine increases the magazine capacity, increases the dead space unnecessarily, and increases the size of the entire apparatus. An object of the present invention is to make it possible to operate the discharge of a plurality of mounted magazines individually and efficiently.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, according to the present invention, in the configuration, a lock mechanism for independently accommodating a plurality of magazines arranged vertically and holding the magazine at that position, and individually taking out the magazine from the position at any time In the disc changer device including a plurality of eject mechanisms to obtain, the pushing force of the disc pushing mechanism mounted on the disc selecting device movable between the disc storage stages is individually transmitted to the lock members of the plurality of eject mechanisms. A plurality of lever mechanisms for operating the eject mechanism are provided , and the transmission of the pushing force to these lever mechanisms is performed in a concentrated manner in a separated space between adjacent magazines .
[0007]
The magazine can accommodate at least three magazines, and the transmission of the pushing force to the link mechanism is performed in a separated space between two magazines housed vertically adjacently, and more preferably, this space is specified. .
[0008]
[Action]
According to the present invention, according to the above means, the disc pushing mechanism is mounted on the disc selecting device, and the disc pushing mechanism freely moves between the storage stages of the discs to transfer a required disc from the stored magazine to the reproducing apparatus. And push it out. On the other hand, between the lowermost disk of the upper magazine and the uppermost disk of the lower magazine among the disks normally housed independently and housed at equal intervals in each of the vertically adjacent magazines Has a space corresponding to the total size of the partition and the thickness of the magazine case. This space does not participate in the extrusion of the disc.
[0009]
Therefore, a lever mechanism is provided in this space, which is linked to a lock member of an eject mechanism provided on a storage shelf of each magazine, and furthermore, a stepping movement of the disk selecting device is made to correspond to a storage stage of each magazine, and a disk pushing mechanism is provided. The ejecting mechanism can individually actuate the eject mechanisms by the pushing force of the magazine, thereby enabling the magazine to be individually taken out.
[0010]
Furthermore, if the operating position of the lever mechanism that transmits to the lock member of each magazine eject mechanism is concentrated in a specific magazine separation space, the moving distance of the disc push-out mechanism to each magazine storage stage can be saved, and the magazine can be discharged quickly and efficiently. Can do well.
[0011]
【Example】
Hereinafter, embodiments of the present invention will be described with reference to the drawings. Hereinafter, the same reference numerals are used for common elements in the drawings. FIG. 1 is a schematic front view of the entire disc changer device according to the present invention, 10 is a housing, 12 is a chassis, 14 is an operation panel, and 16 is a magazine storage shelf which can store three magazines in three stages. It is. In the figure, magazines 18, 18 are mounted on the lower two magazine storage shelves 16, 16, and the uppermost row is empty. Reference numeral 20 denotes a sliding door that opens and closes the magazine storage chamber, and is illustrated in a position where the magazine storage shelf 16 is opened. Reference numeral 22 denotes an opening / closing handle of the sliding door 20, and reference numeral 24 denotes a monitoring window, which is formed in the sliding door 20 so that a confirmation indicator 26 of the selected disk position provided on the operation panel 14 can be visually recognized from the outside. In the case shown in the figure, according to the index S of the indicator 26, the mechanism indicates that the top of the magazine storage shelf 16 is at the magazine eject operation position (scale = E ₃ ). In this embodiment, for convenience, three magazines 18 capable of accommodating six disks 27 can be mounted, and a player operable with a total of 18 disks has been exemplified. However, it is obvious that the present invention is not limited to this. .
[0012]
The operation switches provided on the operation panel 14 are concealed by other parts of the sliding door 20 and are protected from erroneous operation. Reference numeral 28 denotes an eject operation button, each of which corresponds to a magazine storage shelf, and a desired magazine can be taken out by pressing any one of them. The magazine is mounted by fully pushing the magazine into the predetermined shelf position, and at the final end of the pushing, the magazine is automatically locked by a known means and held at that position. When the sliding door 20 is opened by operating the opening / closing handle 22 in this way and the magazine attaching / detaching operation is completed, when the sliding door 20 is closed, the operation panel 14 is exposed to the front on the right side in the drawing, and the reproducing operation of the disc 27 is performed. Becomes possible. The changer device may be provided with only the eject operation button 28, and the panel indicated by reference numeral 14 may not be provided with operation switches. In this case, various operation commands to the changer device are issued from a head unit (not shown) connected to the changer device.
[0013]
FIG. 2 is a plan view showing a cross section along the line II-II in FIG. 1, where M is a magazine storage unit, and P is a disk reproducing unit. Reference numeral 30 denotes a lift panel on which a disc selection / reproduction mechanism (not shown) is mounted, three shift pins 33, 34, 35 are integrally implanted, and a first plate cam 36a and a second plate cam 36a on the front operation panel 14 side. The zigzag step-like cam grooves 40a and 42a provided on the plate cam 38a and the zigzag-shaped two zigzag-shaped grooves provided on the rear surface side of the first plate cam 36b and the second plate cam 38b are separated from each other. It is supported by the stepped cam grooves 40b, 40c, 42b, and 42c, and is guided up and down by a linear guide groove 43 provided in the chassis 12 to be controlled.
[0014]
The zigzag stepped cam grooves 40a, 40b, 40c provided on the first plate cams 36a, 36b are all identical in shape, and the stepped cam grooves 40b, 40c are axially symmetric with respect to the stepped cam groove 40a. It is one that is arranged upside down. The zigzag step-like cam grooves 42a, 42b, 42c provided on the second plate cams 38a, 38b are all the same in shape, and the step-like cam grooves 42b, 42c are formed with the step-like cam grooves 42a. They are arranged symmetrically inverted.
[0015]
Reference numeral 50 denotes an operation key of the disc push-out mechanism, which is connected to a drive unit (not shown) provided on the lift panel 30 by an arm 52 and moves up and down together with the lift panel 30. Due to the operation of the operation key 50 projecting leftward in the figure (two-dot chain line), the disc ejection lever 48 at the same level as the operation key 50 is rotated counterclockwise, and only the disc 27a engaged with this is rotated. Is pushed toward the disk reproducing unit P to a position indicated by a two-dot chain line in the figure, and is set on the disk reproducing unit P by a known means.
[0016]
FIG. 3 is a front view of the first plate cam 36a and the second plate cam 38a shown along the line III-III in FIG. 2. The zigzag stepped cam groove 40a is provided on the first plate cam 36a. One zigzag stepped cam groove 42a is formed in the second plate cam 38a. For convenience, the folded portion on the left side of the zigzag stepped cam groove 40a in the first plate cam 36a is defined as a peak, and the folded portion on the right side is defined as a valley.
Step 66 in which the zigzag-shaped groove shifts from the valley to the peak, step 68 in which the shift only on the peak side, step 70 in which the shift from the peak to the valley, and step 72 in which only the valley side shifts Are sequentially combined. The second plate cam 38a also has the same zigzag shape, but the inclined portion 74 of the stepped cam groove 42a is provided in correspondence with the continuous steps 68, 72 on only one side of the first plate cam 36a. The transition is performed by the cooperation of the second plate cam 38a.
[0017]
Next, the stepping movement of the lift panel 30 will be described by exemplifying the operation of the first and second plate cams 36a and 38a with respect to the shift pin 33. The other pins 34 and 35 are formed in the same manner by the stepped cam grooves 40b, 42b, 40c and 42c of the first and second plate cams 36b and 38b which engage with the other pins 34 and 35, and the description is omitted. Both plate cams intermittently reciprocate between zigzag peaks and valleys via joints 54a, 54b: 58a, 58b by actuation of electrically and / or mechanically controlled drive levers 56, 60. Let it.
[0018]
Initially, it is assumed that the lift panel 30 is at the lower end position m ₁ (scale of the operation panel = 1: below, scale = 1). While the second plate cam 38a (hereinafter, cam 38a) is stopped, the first plate cam 36a (hereinafter, cam 36a) is moved in the direction of arrow R and stopped at a position corresponding to half the stroke. The engagement position of the shift pin 33 with the cam groove 40a is m ₂ , and the shift pin 33 is stopped at the scale = 2. Moving in the direction of arrow R cam 36a to the stroke full engagement position between the cam groove 40a of the shift pin 33 reaches the m _3, the shift pin 33 is positioned in the scale = 3. During this operation, the cam groove 42a of the cam 38a is at the position 75 where no interference occurs.
[0019]
Next, with the cam 36a stopped, the cam 38a is moved in the direction of the arrow L and stopped at a position corresponding to half of the stroke. Position of engagement with the cam groove 40a of the shift pin 33 is shift pin 33 _{m 4} stops located scale = 4. When further moved in the direction of the arrow L the cam 38a to the stroke full engagement position between the cam groove 40a of the shift pin 33 becomes m _5, the shift pin 33 is positioned in the scale = 5. Now stop cams 38a, by stopping the cam 36a at half stroke, the shift pin 33 is so engaged with the cam grooves 40a and m _6, the shift pin 33 stops at the position of the scale = 6. Therefore further moves the cam 36a to the stroke fill and allowed position shift pin 33 engaging the shift pin 33 to _{m 7} of the cam grooves 40a on the scale = _{E 1.} Even during this operation, the cam groove 42a of the cam 38a is at the position 75 where no interference occurs. In this way, the shift pin 33 steps in the linear guide groove 43 in one direction. It is possible to reverse the shift pin 33 by reversing the above procedure.
[0020]
The scale = 1 to 6 corresponds to the storage stage of the disk 27 of the lower magazine 18, and the shift pin 33 is stopped at a required step position and locked at that position by another means, and the required disk 27 is locked. The operation panel 14 is operated to operate the operation key 50 of the disk ejection lever 48 to extract, reproduce, and use the disk 27 from the storage position by a known means. The storage position can be returned later.
[0021]
Here, while the cam 36a is stopped, the cam 38a is moved in the direction of the arrow R and stopped at a half position of the stroke. Position of engagement with the cam groove 40a of the shift pin 33 is shift pin 33 _{m 8} stops located scale = _{E 2.} When further moved in the direction of arrow R cam 38a to the stroke full engagement position between the cam groove 40a of the shift pin 33 becomes m _9, the shift pin 33 is positioned in the scale = E _3. At positions m ₇ , m ₈ , and m ₉ corresponding to the scales E ₁ , E ₂ , and E ₃ , a space without a disc is generated due to the thickness of the magazine storage frame or the magazine case. Therefore, an eject lever operable by the operation key 50 is provided at this stage position in the magazine storage stage so as to correspond to the graduation positions E ₁ , E ₂ , and E ₃ , and the magazine is ejected.
[0022]
The above is the operation for the magazine disc mounted in the lower tier, but the same operation is repeatedly performed on the cams 36a and 38a for the discs in the middle and lower tiers to achieve the object. Can be. The three-step positions m ₁₆ , m ₁₇ , and m ₁₈ (scales = F, F, F) between the middle magazine and the upper magazine are dead zones in which the operation function members such as the operation keys 50 are not installed. Since there is space, there is no need to provide an intermediate step, and when the shift pin 33 is at this position, the cam 38a is controlled to move without stopping the entire stroke.
[0023]
76a and 76b are linear guides for reciprocating and moving the first plate cams 36a and 36b right and left, and 78a and 78b are linear guides for reciprocating and moving the second plate cams 38a and 38b right and left. Also engages with the stud pins 80 and 82 fixed to the chassis and slides. Reference numeral 62 denotes a pin that moves together with the lift panel 30. By visually recognizing the position of the index S from the outside, it is possible to check which storage stage the lift panel 30 corresponds to the disk 27.
[0024]
In the above embodiment, a step-like cam groove having a zigzag shape is applied to the stepping mechanism. However, the present invention is not limited to this. For example, a pantograph as shown in JP-A-62-34363 is used. A mechanism using a link mechanism or a mechanism having a step-like cam as shown in Japanese Patent Application Laid-Open No. 63-206991 may be used.
Further, the lift panel 30 may be supported by a crosshead that is screwed with at least two lead screws, and the lead screws may be moved stepwise by a known means using pulse control. In addition, a similar mechanism using an endless chain, belt or wire stretched up and down may be used instead of the lead screw.
[0025]
In the first embodiment, reference numeral 84 denotes a magazine eject lever for operating a magazine eject mechanism provided in each magazine accommodating portion, and its operation end 85 has levels E ₁ , E ₂ , and E not involving the disk ejection lever 48. ₃ is operated by the same operation as that for the disk ejection lever 48 by the operation key 50 of the disk pushing mechanism (see FIG. 5A).
[0026]
As shown in FIG. 4, the plan view of the magazine storage shelf 16 has substantially the same shape as the magazine 18, and has a cutout 46 at the same position as the magazine 18, and a disk ejection lever 48 connected to the magazine 18. The operation key 50 is allowed to pass in the vertical direction, and a lock mechanism 86 for locking the magazine 18 at the storage position and an eject mechanism 87 for discharging the magazine 18 are provided on the upper surface.
[0027]
A return spring 88 always biases the lock plate 90 leftward in the drawing. A lock pin 92 is implanted in a lock plate 90 and can be engaged with a jaw 96 of a key-shaped lock groove 94 provided on the lower surface of the magazine. Reference numeral 98 denotes a discharge spring, which urges an eject plate 100 integrated with a contact plate 99 that abuts on the insertion edge of the magazine in the discharge direction.
[0028]
Reference numeral 102 denotes a release pin, which is implanted at the end of the magazine eject lever 84 on the side opposite to the operation end 85 and rotates integrally with the shaft 103 as a center. The release pin 102 is engaged with the projection 104 of the lock plate 90, and slides the lock plate 90 against the urging force of the return spring 88 with the rotation of the magazine eject lever 84.
[0029]
107 is a guide groove which slides along the fixed protrusion 108 to linearly move the lock plate 90. A guide groove 109 of the eject plate 100 moves along the fixing protrusion 110. Reference numeral 111 denotes a control piece. When the magazine 18 is not inserted, the ejecting plate 100 is moved forward (downward in the figure) of the housing 10 by the urging force of the discharge spring 98, and is pushed up by the holding edge 112. And is in a dormant state. Therefore, the lock plate 90 is forcibly moved rightward in the drawing, and the lock pin 92 is aligned with the access portion 106 of the lock groove 96 of the magazine 18. As the magazine 18 is inserted, the eject plate 100 moves rearward (upward in the figure) of the housing 10, so that the lock plate 90 is controlled by the urging force of the return spring 88.
[0030]
When the magazine 18 is inserted into the storage position as shown in the drawing, a lock pin 92 constantly urged to the left in the figure by a return spring 88 via a lock plate 90 is provided with a key-shaped lock provided on the lower surface of the magazine case. It enters along the entrance 106 of the lock groove 94 and engages the jaw 96. Therefore, the ejection force of the eject plate 100 urged in the ejection direction (the lower side in the figure) by the ejection spring 98 is suppressed, and the magazine 18 is locked at the storage position.
[0031]
Next, the operation of discharging the magazine will be described. As shown in FIG. 1, when the front sliding door 20 is opened, the array of the eject operation buttons 28 can be accessed. Pressing the eject operation button 28 which is displayed here, for example, the E _2. At this time, if the disc remains in the disc reproducing unit P, the disc is returned to the extracted magazine in the stopped stage, and the drive levers 56 and 60 are sequentially operated to walk on the lift panel 30. while advancing, shift pin 33 is moved to a position corresponding to the scale = _{E 2} indicator 26 which engages the _{m 8} of the cam groove 40a.
[0032]
FIG. 5 is a schematic perspective view for explaining the operation of the operation key 50 according to the present invention for the first to third embodiments, and is shown from the back side. FIG. 5 (a) shows a magazine, but FIGS. 5 (b) and 5 (c) do not show the magazine for simplicity. However, it goes without saying that the arrangement relationship of the insertion is the same as that of FIG.
[0033]
Here, as shown in FIGS. 4 and 5A, for example, the operation end 85 of the magazine eject lever 84 in which the release pin 102 that engages with the lock plate 90 of the magazine stored in the middle is implanted. The level provided is the same as the level of the operation key 50 of the disk pushing mechanism that has moved together with the lift panel 30. Then, the operation key 50 projects to the left in the drawing in the same manner as for the disc ejection lever 48, and pushes the operation end 85 of the magazine eject lever 84 at the same level as the operation key 50 in the counterclockwise direction in the drawing. It turns (see FIG. 4).
[0034]
The release pin 102 provided at the end of the magazine eject lever 84 rotated by the operation key 50 presses the projection 104 of the lock plate 90, and moves the lock plate 90 in the direction of arrow X in the figure. As a result, the lock pin 92 moves from the jaw 96 to the entrance 106 in the lock groove 94 as shown by the two-dot chain line, disengagement from the magazine 18, and the magazine 18 It is pushed downward in the figure by the urged eject plate 100. On the other hand, the movement of the ejection plate 100 causes the control piece 111 to be pushed up to the holding edge 112 along the inclined edge 113, thereby ensuring that the lock pin 92 is separated from the jaw 96.
[0035]
FIG. 5B shows a second embodiment relating to the magazine eject lever. The relation of the magazine eject lever 84 to the lock plate 90 of the middle magazine is the same as that of the first embodiment, but the uppermost and lowermost magazines. The magazine eject levers 284a and 284c associated with the lock plates 290a and 290c are arranged to rotate in a vertical plane.
[0036]
In this case, in the operation key 50, the magazine eject lever 284a rotates clockwise in the figure, but the magazine eject lever 284c rotates counterclockwise in the figure. In any case, the release pins 202a and 202c press the projections 204a and 204c of the lock plates 290a and 290c to move the lock pin 92 in the unlocking direction and discharge the corresponding magazine, as in the first embodiment. It is.
[0037]
FIG. 5C shows a third embodiment relating to a magazine eject lever. The magazine eject levers 384a, 384b, and 384c are independently slid linearly in the vertical direction in FIG. The operation end portions 385a, 385b, 385c on which the operation keys 50 operate have a substantially triangular shape, slide on the operation keys 90 on slopes 386a, 386b, 386c, and are linearly perpendicular to the pressing direction of the operation keys 90. To slide.
[0038]
As a result, the release pins 302a, 302b, and 302c implanted in the magazine eject levers 384a, 384b, and 384c press the projections 304a, 304b, and 304c of the corresponding lock plates 390a, 390b, and 390c of the magazine. The vertical movement can be converted into the horizontal movement by the action of the slope, and the magazine can be individually discharged by moving the lock pin 92 in the unlocking direction as in the first embodiment.
[0039]
In the third embodiment, the operation end portions 385a, 385b, and 385c are provided at two positions on each of the magazine eject levers 384a, 384b, and 384c, and the operation keys 50 perform the magazine eject function at two levels EA ₁ , EA ₂ , EA ₃ : can be summarized as EB ₁ , EB ₂ , EB ₃ . Therefore, in this case, the lift panel 30 can select any nearest eject level and move in a short time.
[0040]
Now, in the present invention, the mechanism for locking and ejecting the magazine is not limited to the above-described mechanism, but may be any mechanism. Also, the magazine eject levers corresponding to all the magazines have been described as being provided in a concentrated manner between two specific magazines. However, it is sufficient that at least two eject levers are provided between predetermined magazines. Further, instead of providing the magazine eject levers concentratedly between the magazines, the magazine eject levers may be provided more concentratedly outside the outermost magazine.
[0041]
【The invention's effect】
As described above, the magazine eject mechanism of the disc changer device according to the present invention uses an existing disc pushing mechanism in common with a plurality of magazines, so that no special space is required for the eject mechanism, and the mounting magazine is not required. Even if the number increases, it is possible to sufficiently cope with miniaturization of the apparatus. In addition, since the operation position of the pushing force of the disc pushing mechanism is concentrated at a specific location in the disc selecting mechanism, the magazine eject operation can be efficiently performed within the range of disc selection.
[Brief description of the drawings]
FIG. 1 is a front view schematically showing the entire disc changer device according to the present invention.
FIG. 2 is a plan view of a cross section shown along the line II-II in FIG.
FIG. 3 is a front view of the plate cam shown in FIG. 2 along the line III-III.
FIG. 4 is a plan view of a cross section taken along the line IV-IV of FIG. 1;
FIGS. 5A and 5B are perspective views showing an embodiment of a magazine eject mechanism of the disc changer device according to the present invention from the back, where FIG. 5A is a first embodiment, FIG. 5B is a second embodiment, and FIG. An example will be described.
FIG. 6 is a plan view of a conventional magazine eject mechanism.
[Explanation of symbols]
12 Chassis 14 Operation panel 16 Magazine storage shelf 18 Magazine 26 Indicator 27 Disk 28 Eject operation button 30 Lift panels 33, 34, 35 Shift pins 36a, 36b First plate cams 38a, 38b Second plate cams 40a, 40b, 40c Stairs Cam groove (first plate cam)
42a, 42b, 42c Stepped cam groove (second plate cam)
43 Linear guide groove 48 Disc ejection lever 50 Operation key 52 Arms 54a, 58a Joints 56, 60 Drive lever 84 Magazine eject lever 85 Operation end 86 Lock mechanism 87 Eject mechanism 88 Return spring 90 Lock plate 92 Lock pin 94 Key type lock groove 96 Jaw 98 Ejection spring 100 Eject plate 102 Release pin 104 Projection 106 Accession 107, 109 Guide groove 108, 110 Fixing projection

Claims (1)

In a disc changer device including a lock mechanism for independently accommodating a plurality of magazines arranged vertically and holding the magazine at that position, and a plurality of eject mechanisms capable of individually taking out the magazine from the position at any time, a disc storage stage is provided. the extrusion force of the mounting disk extruding mechanism movable disk selecting device between is transmitted to each of the locking members individually the plurality of ejecting mechanism provided with a plurality of lever mechanism for operating the ejecting mechanism, these lever mechanism Wherein the transmission of the pressing force to the disc is concentrated in a space between adjacent magazines .

Images