JP3547486B2 - Drive device and disc changer device - Google Patents

Description

[0001]
[Industrial applications]
The present invention relates to a player for reproducing information recorded on a disc such as a laser disc and a compact disc. More specifically, the present invention relates to a player for selectively extracting required discs individually and reproducing the discs. The present invention relates to a drive device suitable for a step moving mechanism for transporting a disc selecting means to any one of the stages of the disc.
[0002]
[Prior art]
As shown in FIG. 5, a first example of the conventional moving mechanism of the disc selecting and reproducing means uses a linear guide groove 502 provided on a chassis 501 and a step-shaped groove 504 provided on a plate cam 503 to selectively play a disc. By restricting and controlling a pin 506 provided to project from a part of the means 505, the disc selecting / reproducing means 505 is moved step by step. That is, by reciprocating the plate cam 503 in the direction perpendicular to the linear guide groove 502 (in the direction of the arrow X in the figure), the pin 506 is controlled to the step-like groove 504, and the pin 506 advances along the linear guide groove 502. Meanwhile, the linear guide groove 502 reciprocates between the upper limit position U and the lower limit position D. The position of the disc selection / reproduction means 505 'corresponds to the position of the plate cam 503' shown by the two-dot chain line in the figure. In the middle of this, it stops at each horizontal portion 507 perpendicular to the step-shaped groove 504 and the guide groove 502. Since the position of the horizontal portion 507 corresponds to the position of the laminating step of the disk, the disk selection / reproduction means 505 is fixed at that position, and the disk is extracted from the magazine storage position by a known means, reproduced, and moved to the storage position. A series of operations called return is performed.
[0003]
As the second moving means, as shown in FIG. 6, a step-like groove is divided and divided into two plate cams 601 and 602, and the one plate cam is operated in cooperation with the two plate cams. There is a configuration in which the same effect as in the case of a plate cam is obtained. In this case, the first plate cam 601 is reciprocated by the rack 603 and the pinion 604 provided at the lower end, and the pin 606 is moved to the lowermost position by the first step-like groove 605 provided in the first plate cam 601. From the middle to the middle. Further, the second plate cam 602 is reciprocated by meshing the rack 607 at the lower end and the pinion 604 in the same manner as described above, and the second plate cam 602 is divided by a step-shaped groove 608 to be provided. The pin 606 is moved up and down from the middle stage to the uppermost stage. The pin 609 is implanted in the first plate cam 601 and moves freely in the linear guide groove 610 provided in the second plate cam 602, and comes into contact with the end of the linear guide groove 610 to make the second plate cam By displacing the pinion 602, the meshing of the pinion 604 with the pinion between the racks 603 and 607 is shifted. By dividing the step-like groove in this way, the reciprocating stroke of the plate cam can be shortened, which contributes to the miniaturization of the apparatus. In FIGS. 5 and 6, the numbers on the right side of the figures indicate the storage step positions of the disks.
[0004]
[Problems to be solved by the invention]
Since the driving device of the first moving means is simply a reciprocating motion, a known linear motion device using a rack and pinion mechanism or a crank mechanism can be applied by appropriately providing a stop position control mechanism. . Also, the drive device in the second moving means discloses a mechanism using a rack and pinion. However, when the number of discs increases and the number of storage stages increases, the stepwise groove expands and expands to the side in the drawing in the above-described conventional technology, although the longitudinal increase of the plate cam is inevitable. Therefore, the lateral dimension of the plate cam increases.
[0005]
In the second conventional example, this tendency is alleviated by dividing a step-like groove. In particular, in the case of an in-vehicle reproduction player or the like which is limited in size in terms of volume, the number of discs is limited. It becomes impossible to cope with large quantities. Further, in the above-described mechanism for shifting the rack meshing with the pinion from the first plate cam to the second plate cam, particularly in a consumer device, an unexpected load may cause a shift in meshing. Since the operation cannot be performed at an appropriate timing, reliability is lacking.
[0006]
In general, a Geneva mechanism, a clutch mechanism, or the like can be applied as a device for reciprocating by stepping on a straight line. However, the device is inevitably complicated and large, and the effect on cost cannot be overlooked. SUMMARY OF THE INVENTION It is an object of the present invention to provide a small, simple and reliable intermittent reciprocating drive, and a disk changer device which can be mounted with a plurality of magazines and can accommodate a large number of disks.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, a first invention is a drive device for alternately moving two plate cams each having a cam groove, comprising: a rotary drive source; a pin provided on the rotary drive source; And two driving levers, each output end of which is connected to the plate cam , each of which is swingably supported at a different fulcrum, and which is linked to the cam. source by, characterized in that the pin by rotating the pin and configured to move the plate cam to oscillate the said drive lever by Rukoto exercised along the cam.
[0008]
The first and third inventions are characterized in that, in the driving device of the first invention, the output end of the drive lever is alternately moved one way while the pin rotates in one direction. .
[0009]
According to a fourth aspect of the present invention, there is provided a disk changer device including any one of the above-described driving devices, two plate cams having zigzag stepped cam grooves, and a disk selecting mechanism connected to each of the plate cams. It is characterized by having done.
[0010]
According to a fifth aspect, in the driving device according to the first aspect, the drive lever is provided to be rotatable independently about each axis, and the pin has a rotation axis at a position different from the axis. consists of two gears rotating in mesh with each other, said pins while implanted one not a one to s the gear respectively, the line connecting the two axes of the mutually overlapping shank portion a and the drive lever of the two driving levers on both sides of, said to correspond to the pins of respective the two different cam hole having a shape combining the elongated hole in the longitudinal direction is provided a width, the two driving levers of each pin the cam hole for inserting the cam hole of When the drive lever is rotated in engagement with the narrow elongated hole portion of the above, the drive lever is caused to move freely in the wide elongated hole portion, and one of the pins is rotated in accordance with the rotation of the gear in a predetermined order. With any of the narrow slots Characterized in that the output end of the two drive levers so as to focus.
[0011]
Further, in the disc changer device of the sixth invention, in a player for selecting and playing a required disc from a large number of mounted discs, two types of plate cams having zigzag stepped cam grooves are arranged in a specific order. The drive lever of the drive device of the fifth invention is connected to each of the two types of plate cams in a mechanism for moving the disk selecting means step by step back and forth alternately to the required disk storage stage. It is characterized by the following.
[0012]
[Action]
In the driving device according to the first to third aspects of the present invention, when the pin is rotated by the rotary driving source, the pin moves along the cam of the driving lever, and the output end of the driving lever alternately moves one way or reciprocates. I do.
[0013]
In the disk changer device of the fourth invention, the plate cam is driven by the drive device to move the disk selection mechanism.
[0014]
Further, according to the drive device of the fifth invention, since the pins respectively implanted on the two gears engaged with the cam holes provided in the body portions of the two drive levers are engaged, the gears can be used. The drive lever can be reciprocated by rotating in one direction. All the cam holes have a shape in which a narrow slot and a wide slot are joined in the longitudinal direction, and the pin can rotate the drive lever when engaging with the narrow slot. In the region with the long hole, it is in a floating state. Therefore, when the gear rotates, one of the pins is configured to engage with any one of the specific narrow slots in a predetermined order, and the two drive levers are intermittently reciprocated. be able to.
[0015]
According to the sixth disc changer device, the two drive levers of such a drive device are connected to the two types of plate cams, respectively, and the intermittent reciprocating drive of the two drive levers is performed by the two types of plate cams. By transmitting the disc to the cam, the disc selecting means can be moved to the required disc selecting means step by step through the zigzag stepped cam grooves provided on the two types of plate cams.
[0016]
【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 a disc changer device according to the present invention, in which 10 is a housing, 12 is a chassis, 14 is an operation panel, and 16 is a magazine storage shelf capable of storing three magazines in three stages. is there. In the figure, magazines 18, 18 are mounted on the lower two magazine storage shelves 16, 16, and the uppermost row indicates that no magazine is mounted. 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. .
[0017]
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 manner to complete the operation of attaching and detaching the magazine, and the sliding door 20 is closed, the operation panel 14 is exposed to the front on the right side in FIG. become. 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 commands to the changer device, such as disc change and reproduction, are performed from a head unit (not shown) connected to the changer device.
[0018]
Numeral 30 denotes a lift panel on which a disc selecting / reproducing means (not shown) is mounted, three shift pins 33, 34 and 35 are integrally implanted, and a first plate cam 36a and a second plate cam 36a on the operation panel 14 on the front side. The zigzag step-like cam grooves 40a and 42a provided on the plate cam 38a and the zigzag-shaped two-sided zigzag provided on the back side of the first plate cam 36b and the second plate cam 38b are respectively provided. It is supported by the stepped cam grooves 40b, 40c, 42b, 42c, and is guided and controlled up and down by a linear guide groove 43 provided in the chassis 12.
[0019]
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.
[0020]
FIG. 2 is a plan view of the driving device 85 according to the present invention, which is shown in a cross section along the line II-II in FIG. The gears 94a and 94b mesh with each other with gears having the same diameter, and are operated by a controlled drive motor 88 via a reduction gear train 89 to rotate forward, reverse, or stop. Reference numerals 96a and 96b are working pins, which are implanted in the gears 94a and 94b, respectively. Drive levers 56 and 60 are rotatable around respective shafts 90 and 86. The shafts 86 and 90 are symmetrically positioned on a tangent line where the gears 94a and 94b mesh with each other, and on both sides of a line connecting the gear shafts 95a and 95b. The two drive levers 56, 60 have the same shape and are arranged facing each other and overlaid on the gears 94a, 94b. Reference numerals 87 and 91 denote escape grooves formed in the drive levers 56 and 60, respectively, so that the shafts 86 and 90 do not hinder the movement of the drive levers 56 and 60.
[0021]
The drive levers 56 and 60 are provided with cam holes 98a and 98b: 100a and 100b, respectively, so that the working pins 96a and 96b are inserted and inscribed. Each cam hole has a shape in which a narrow slot n portion and a wide slot w portion are connected in the longitudinal direction. Each of the action pins 96a and 96b is engaged with the narrow slot n, but is in the floating state at the wide slot w. Hereinafter, in the areas where the widths of the long holes are different, the symbols of the respective cam holes are indicated by subscripting n or w.
[0022]
The drive levers 56, 60 are such that pins 57a, 61a implanted at one end engage with joints 54a, 58a provided integrally with the front second plate cam 38a and first plate cam 36a. Then, the first plate cam 36a and the second plate cam 38a are individually reciprocated. Opposite to this, pins 57b and 61b are respectively implanted at the other end of the driving levers 56 and 60 to reciprocate the second plate cam 38a and the first plate cam 36a on the rear side. Are integrally provided with the joint 54b and the joint 58b.
[0023]
By the rotation of the drive lever 56, the first plate cams 36a, 36b on the front side and the rear side move relative to each other simultaneously, and all of the three shift pins 33, 34, 35 are moved by the stepped cam grooves 40a, 40b, 40c. At the same time. The rotation of the drive lever 60 causes the second plate cams 38a and 38b to move relative to each other at the same time. Similarly, the step-like cam grooves 42a, 42b and 42c are formed in the front and rear second plate cams 38a and 38b. All three shift pins 33, 34, 35 have the same effect at the same time.
[0024]
55a, 55b: 59a, 59b are arc-shaped grooves formed in the chassis 12 for slidingly guiding the lower ends of the pins 57a, 57b: 61a, 61b by inserting and inserting the lower ends of the pins 57a, 57b: 61a, 61b. The movement of the drive levers 56 and 60 is stabilized by sandwiching the thickness of the chassis with a flange portion having an enlarged diameter at the end portion.
[0025]
Reference numeral 102 denotes a rotating disk that rotates integrally with the gear 94b, and eight small holes 104,..., 104 are provided at equal intervals along the circumference. Reference numeral 106 denotes a photoelectric element, which generates a one-pulse signal each time it faces the small hole 104. This pulse is counted by means such as an up-down counter or the like, and the driving member is controlled in comparison with an external input based on the data. That is, one rotation of the rotating disk 102 corresponds to eight pulses, and each pulse generation position has a one-to-one correspondence with the phase of the two drive levers. By rotating forward or reverse, the two drive levers can be stopped at a specific phase. As will be described later, the intervals between the storage stages of the disks 27 are set in correspondence with the pitch between the small holes 104.
[0026]
The plan view of the magazine storage shelf 16 has substantially the same shape as that of the magazine 18, and the upper surface is provided with a locking / discharging mechanism for locking and ejecting the magazine 18 in the storage position. . Further, the magazine storage shelf 16 is provided with a notch 46 of the same shape at the same position as the magazine 18 so that the operation key 50 of the disc ejection lever 48 connected to the magazine 18 is allowed to pass in the vertical direction. are doing. The operation key 50 is connected to a drive unit (not shown) installed on the lift panel 30 by an arm 52, and moves up and down together with the lift panel 30. When the operation key 50 is set to any of the levels E ₁ , E ₂ , and E ₃ that do not involve the disc ejection lever 48, the magazine eject lever is operated by the same operation as that for the disc ejection lever 48. Can be done.
[0027]
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.
[0028]
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 shift Are sequentially combined. The second plate cam 38a also has the same zigzag shape, but the inclined portion 74 of the step-like cam groove 42a is provided corresponding to the steps 68, 72 of the first plate cam 36a, and the transition between them is performed by the second plate cam 38a. This is performed by the cooperation of the plate cam 38a.
[0029]
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 26 denotes an indicator. By visually recognizing the position of the index S moving integrally with the lift panel 30 from the outside, it is possible to confirm which storage stage the disk 27 corresponds to.
[0030]
Next, the operation of the driving device and the incremental movement of the lift panel 30 are represented by the operation of the first and second plate cams 36a and 38a with respect to the shift pin 33, and will be described in detail with reference to FIG. Regarding the other pins 34, 35, the stepped cam grooves 40b, 40b: 42c, 42c of the first and second plate cams 36b, 38b engaged therewith are completely the same in conjunction with the operation of the drive levers 56, 60. Therefore, the description is omitted.
[0031]
In now to Figure 4 (a), as the shift pin 33 for stepping the disk selection means in the stacking direction of the disc is at the lowest position m _1, by rotating the gear 94a, for example, in a counterclockwise direction, the gear 94b which meshes Watch The action pin 96b which rotates in the direction is in a floating state with the cam holes 98b and 100b and does not interfere with the movement of the drive lever at all, while the action pin 96a releases the engagement with the cam hole 98an and the cam hole 98an. Move to engagement with. Therefore, the drive lever 56 stops rotating, the drive lever 60 starts rotating counterclockwise, and reaches the state shown in FIG. That is, the plate cam 38a remains stopped, to move to the right in the drawing only the plate cam 36a, the shift pin 33 is raised to the position m ₃ along the linear guide groove 43. As described above, when the engagement between the pin 96a and the cam hole 98an is released, the drive lever 56 stops rotating. After that, the pin 96a is moved to the curved portion (98an side) of the cam hole 98aw. The driving lever 56 moves along the curved portion of the cam hole 98bw (the arc portion provided on the 98bn side), so that the drive lever 56 stops stably without stopping. .
[0032]
When the rotation of the gears 94a and 94b further advances from the state of FIG. 4B, the action pin 96a moves to the cam hole 100aw area, and the drive lever 60 stops rotating. As described above with reference to FIG. 4A, the pins 96a and 96b move to the curved portions of the cam holes 100aw and 100bw, respectively, so that the drive lever 60 stops stably.
[0033]
On the other hand, the other working pin 96b is engaged with the cam hole 98bn, the drive lever 56 is rotated clockwise, and the plate cam 38a moves to the position shown in FIG. since, the shift pin 33 is raised to the position _{m 6.} At this time, the action pin 96a is in a floating state in the cam hole 98aw, and does not interfere with the movement of the drive lever 56.
[0034]
When the rotation of the gears 94a and 94b further advances from the state of FIG. 4C, the action pin 96b is disengaged from the cam hole 98bn and comes into engagement with the cam hole 100bn. the ready shown in FIG. 4 (d) are rotated in the clockwise direction, the plate cam 36a is to move to the left in the figure, the shift pin 33 is reaches the position m ₇ along the linear guide groove 43. When the rotation of the gears 94a and 94b further proceeds, the action pin 96b is disengaged and the action pin 96a is engaged with the cam hole 98an instead, so that the drive lever 56 rotates counterclockwise, while stopping plate cam 36a, will be moving the plate cam 38a to the right, the shift pin 33 rises a linear guide groove 43 at a position m _9. Such a process (a process for one rotation of the gears 94a and 94b) is defined as one cycle, and the relative positions of the drive levers 56 and 60 and the plate cams 36a and 38a return to FIG. For this reason, the movement of the drive lever is sequentially reversed every quarter rotation of the gear.
[0035]
By the way, the pulse generated by the rotating disk 102 is generated every ８ rotation, and the stop signal of the drive unit is synchronized with the pulse generation position. Therefore, each of the drive levers 56 and 60 can be stopped even in the middle of the full amplitude. is there. That is, by continuing the rotation of the gear 94a, for example, in a counterclockwise direction, the drive lever 56, 60 by repeating the above process, the shift pin 33 is uppermost position from the lowermost position m ₁ m _{2 (Fig.} 3) Continue to climb step by step. Further, by rotating the gear 94a clockwise, the shift pin 33 can be moved in the downward direction at any time. Since the shift pin 33 is integrally connected directly to the disk selection reproducing means, by stopping the rotation of the needed gear position m _{x (X} = 1~24) at a predetermined position to correspond to the disc housing stages, the required disk The disk selecting / reproducing means can be reliably moved to the second stage.
[0036]
Further, a movement mode of the lift panel 30 will be described with reference to FIG. First, it is assumed that the lift panel 30 is at the lower end position m ₁ (scale of the indicator 26 = 1: below, scale = 1). When the gear 94b rotates at one pulse interval (１ ／ rotation) and the next small hole 104 directly faces the photoelectric element 106 to generate the next pulse, the second plate cam 38a (hereinafter, cam 38a) While stopped, the first plate cam 36a (hereinafter, cam 36a) moves in the direction of the arrow R, and at a half position of the stroke, the shift pin 33 enters the horizontal area of step 66 and stops rising. Position of engagement with the cam groove 40a in this case the shift pin 33 is located on scale = 2 _{m 2.} In the next 1/8 rotation of the gear 94b, the cam 36a is moved in the direction of arrow R until the stroke full engagement position between the cam groove 40a of the shift pin 33 reaches the _{m 3,} the shift pin 33 is located in the scale = 3 I do. In the rotating disk 102, one pulse is counted with the next small hole 104 facing the photoelectric element 106. During this operation, the cam groove 42a is at the position 75 where no interference occurs.
[0037]
In the next 1/8 rotation of the gear 94b, the cam 38a moves in the direction of the arrow L while the cam 36a is stopped, and the shift pin 33 is at a half position of the stroke, and the shift pin 33 is in the horizontal portion of the cam groove 42a. Situated in the scale = 4 is in the engaged position _{m 4.} The 1/8 rotation of the further gear 94b, moves in the direction of arrow L cam 38a until full stroke, the engagement position between the cam groove 40a of the shift pin 33 becomes _{m 5,} the shift pin 33 is located in the scale = 5 Then, the small hole 104 generates the next pulse. To 1/8 rotation of the subsequent gear 94b which, in turn, the cam 38a is stopped, the cam 36a is in the half-stroke position, the shift pin 33 engages in the position _{m 6} of the horizontal portion in the step 66 of the cam groove 40a Thus, the scale is at the position of 6. Where it is further 1/8 turn the gear 94b, to move the cam 36a to the stroke fill to the shift pin 33 to the position of _{m 7} are engaged with the graduation = _{E 1} of cam groove 40a. Even during this operation, the cam groove 42a of the cam 38a is at the position 75 where no interference occurs.
[0038]
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. 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.
[0039]
In the same manner, the operation of rotating the gear 94b in one direction by １ ／ rotation in the same direction first stops the cam 36a, moves the cam 38a half a stroke in the direction of the arrow R, and moves the cam 36a in the horizontal portion of the cam groove 42a. the shift pin 33 in the engaged position _{m 8} of the groove 40a is a pulse is emitted by the small holes 104 of the rotary disk 102 at that position in the scale = _{E 2.} Further cam 38a moves in the direction of arrow R until the stroke full engaged position next m ₉ of the cam groove 40a of the shift pin 33, is pulsed with small holes 104 of the rotary disk 102 while positioned in scale = E ₃ Be emitted.
[0040]
Positions m ₇ , m ₈ , and m ₉ corresponding to the scales E ₁ , E ₂ , and E ₃ are portions where a space without a disk 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.
[0041]
The above is the operation for the magazine discs mounted on the lower tier, but the same operation is repeated for the cams 36a and 38a for the discs of the magazines mounted on the middle tier and the upper tier. The purpose of making the lift panel 30 correspond can be achieved. 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.
[0042]
【The invention's effect】
As described above, the driving mechanism of the present invention does not control the engagement of the gear and the latch as shown in FIG. 6 as a mechanism for alternately driving the two plate cams, so that the plate cam can be extremely stably formed. Can control movement. Further, the disc changer device according to the present invention has a step-like cam groove for stepwise moving the disc selecting / reproducing means, forming a zigzag shape to reduce the operation stroke of the plate cam, and furthermore, to operate the plate cam in a specific procedure. Has adopted a driving device which alternately uses two working pins implanted in a gear and swings the cam holes with which they are engaged by means of successively shifting, so that the driving device is arranged in the height direction. , The structure is simple, and despite the small occupied space, it is possible to achieve smooth and reliable intermittent reciprocating drive without any difficulty in moving the force, increasing the number of magazines and increasing the number of mounted disks Even if the number increases, it is possible to sufficiently cope with miniaturization of the apparatus.
[Brief description of the drawings]
FIG. 1 is a front view schematically showing a disc changer device according to the present invention.
FIG. 2 is a plan view of the driving device according to the present invention, taken along the line II-II of FIG.
FIG. 3 is a front view of the plate cam according to the present invention, taken along the line III-III of FIG. 2;
FIG. 4 is an operation explanatory view of a plate cam drive device in the disc changer device according to the present invention.
FIG. 5 is a front view of a plate cam according to a conventional example.
FIG. 6 is a front view of a plate cam according to another conventional embodiment.
[Explanation of symbols]
10 Housing 12 Chassis 16 Magazine storage shelf 18 Magazine 27 Disk 30 Lift panels 33, 34, 35 Shift pins 36a, 36b First plate cams 38a, 38b Second plate cams 40a, 40b, 40c Stepped cam grooves (first Board cam)
42a, 42b, 42c Stepped cam groove (second plate cam)
43 linear guide grooves 54a, 54b: 58a, 58b joints 55a, 55b: 59a, 59b arc grooves 56, 60 drive levers 57a, 57b: 61a, 61b pins 85 drive devices 86, 90 (drive lever) shafts 88 drive motors 94a, 94b Gears 96a, 96b Working pins 98a, 98b: 100a, 100b Cam hole 102 Rotating disk 104 Small hole 106 Photoelectric element

Claims (6)

In the driving device for moving the two plate cams having a cam groove alternately has a rotary drive source, and a pin provided on the rotary driving source, a cam to be engaged with the pins, each output end connected to said plate cam, provided with two driving levers that are pivotally supported on the respective different pivot cooperating with the cam, and the said pin by rotating the pin by the rotation drive source driving apparatus characterized by being configured to move the plate cam to oscillate the said drive lever by Rukoto to move along the cam. The drive device according to claim 1, wherein the output end of the drive lever is alternately moved one way while the pin rotates in one direction. The drive device according to claim 1, wherein the output end of the drive lever is alternately reciprocated while the pin rotates in one direction. 4. A drive device according to claim 1, further comprising: two plate cams each having an inclined cam groove; and a disk selection mechanism connected to each of said plate cams. Disk changer device. The drive lever is rotatably provided independently around the respective axes, said pin has an axis of rotation at a position different from the shaft, consists of two gears rotating in mesh with each other, said pins this one not a single people in wheel respectively while implanted, both sides of the line connecting the two axes of the body portion a and the drive lever overlap each other of the two driving levers, in correspondence with each of the pins, a different width 2 A cam hole having a shape in which two long holes are connected in the longitudinal direction is provided, and the pins inserted into the respective cam holes of the two drive levers rotate the drive lever when the pins are engaged with the narrow holes of the cam holes. And, in such a manner that any one of the pins engages with one of the narrow elongated holes in a predetermined order with the rotation of the gear by rotating in the wide elongated hole portion. Use two drive levers as output terminals Drive device according to claim 1, characterized in that. In a player that selects and plays a required disk from a large number of mounted disks, two types of plate cams having zigzag stepped cam grooves are alternately reciprocated in a specific order to require a disk selecting means. 6. A disk changer device according to claim 5, wherein each drive lever of the drive device according to claim 5 is connected to each of two types of plate cams.

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