JP4106940B2 - Front panel opening / closing mechanism of recording and / or reproducing apparatus - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention increases the opening when the front panel is opened so that two or more recording media can be inserted and removed.NoteRecording and / or playback deviceFor opening and closing the front panel of a recording and / or reproducing apparatus applicable toAbout.
[0002]
[Prior art]
Audio and video recording and / or playback discs (recording media) include compact discs (hereinafter simply referred to as CDs) and digital bar-style discs (DVDs). Recording and / or playback devices for these discs include: There are many kinds of products on the market. For example, as a CD playback method for in-vehicle use, a method of storing a plurality of CDs in a magazine, exchanging a plurality of CDs at a time in a magazine unit, and simultaneously playing back the selected CDs, is performed each time. There is a method of exchanging and playing CDs one by one.
[0003]
  The disc recording and / or reproducing apparatus of the latter type is accommodated in a space defined by an in-dash in the passenger compartment. This in-vehicle disk recording and / or reproducing apparatus is designed to reproduce one by one by inserting a CD with a diameter of 120 mm into a substantially rectangular parallelepiped case called a 1DIN size.
  In such a disc recording and / or reproducing apparatus, an opening is formed in the upper part of the panel frame for inserting and removing a CD, and a front panel for fully closing the opening is provided.
  Conventionally, the front panel for fully closing the upper opening of the panel frame isWhen the front panel is open, the width in the height direction in which the CD can be inserted / removed, that is, only the upper part of the panel frame is opened, and the CD can be inserted / removed.
In addition, there is also a recording and / or reproducing device configured to reproduce by inserting a memory card or the like alone into the case instead of the CD.
[0004]
[Problems to be solved by the invention]
However,The above front panelOnly the top of the panel frame is openedBecause other recording media are not usedThe bottom is openZ,On the other hand, the area of the panel frame is almost fixed, so if you do not use it effectively by opening the lower partInsert or remove two or more different recording media including memory cards in the caseDoRecording and / or playbackNot applicable to equipment.
Also,The front panel that opens and closes is easy to move in the opening and closing direction when it is open, and when a switch or the like is provided on the front panel, the front panelOpen front panelSwitch provided aboveWhen operating the front panel, there is also a problem that it is difficult to operate a switch or the like on the front panel unless the open front panel is restrained so as not to move.
Therefore, the present invention has solved this problem.Front panel opening / closing mechanism of recording and / or reproducing apparatusThe purpose is to provide.
[0005]
[Means for Solving the Problems]
  A front panel provided with an operation unit on the front surface for closing the opening provided in a panel frame in which an opening for inserting / removing a recording medium of a recording and / or reproducing apparatus is formedOpenA front panel opening / closing mechanism of a recording and / or playback device to be closed,
  The base end portions of the first and second arms are rotatably connected to the lower two points on both sides of the outer frame of the recording and / or reproducing apparatus, and the distal ends of the first and second arms, respectively. Are connected to each other so that the front panel can be operated by driving at least one of the first and second arms as a drive arm. Open the front of the panel frame from the fully closed position while facing outward.Fully openRotate to positionAnd
  Each of the first and second arms has a base end portion that is rotatable about an axis, and a tip end portion that is inserted into the bearing hole and the shaft that is screwed into the front panel. It is connected with the both ends of the front panel so that rotation is possible.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
A disc player as an embodiment of a disc recording and / or reproducing apparatus according to the present invention will be described below.
<Configuration>
(A) Overall configuration of disk recording and / or reproducing apparatus
As shown in FIGS. 1, 3, 6, 7, and 9, the disk recording and / or reproducing apparatus is roughly divided into a case 1, a moving unit 2 that carries a CD and pulls it into the case 1, and a moving unit 2. Driving means 3 for driving the disk, locking means 4 for locking the moving unit 2 in a state in which the CD is pulled into the case 1, and disk driving means 5 for chucking and rotating the CD on the moving unit 2. And a pickup unit 6 that reads information from a rotating CD, and an outer frame 10 (FIG. 9) that houses the case 1.
[0007]
(B) Case
As shown in FIG. 3, the case 1 includes a bottom plate 1a, a left side plate 1b, a right side plate 1c, and a back plate 1d, and is configured by cutting out, bending, and combining plate materials. The portions of the coupling plates 1e and 1f, which are formed integrally with the left side plate 1b and the right side plate 1c and are bent on the back side, are coupled to the left and right sides of the back plate 1d, thereby ensuring the rigidity of the case 1.
[0008]
(C) Moving unit
A moving unit 2 is provided inside the case 1. The moving unit 2 includes a first moving table 8 and a second moving table 9. The first moving table 8 is movably provided on the case 1 via the first guide means, and the second moving table 9 is provided movably on the first moving table 8 via the second guide means. The first moving table 8 includes a bottom plate 8a, a left side plate 8b, and a right side plate 8c, and the second moving table 9 includes a bottom plate 9a, a left side plate 9b, and a right side plate 9c.
[0009]
The first guide means includes guide holes 10a, 10b and 10c formed in the bottom plate 1a, the left side plate 1b and the right side plate 1c of the case 1 along the front-rear direction, and the bottom plate 8a and the left side plate 8b of the first moving base 8. The guide pins 10d, 10e, and 10f project downward or outward on the right side plate 8c, and the guide pins 10d, 10e, and 10f are loosely fitted in the guide holes 10a, 10b, and 10c.
[0010]
The second guide means includes guide holes 11a and 11b formed along the front-rear direction in the vicinity of the right side and the center of the bottom plate 8a of the first moving table 8, and a lower side behind the bottom plate 9a of the second moving table 9. A single guide pin 11c and a pair of guide pins 11d projecting toward each other, and the single guide pin 11c is loosely fitted in the guide hole 11a and the pair of guide pins 11d is loosely fitted in the guide hole 11b. In order to prevent the guide holes 11a and 11b from coming off, the guide pins 11c and 11d have large diameter portions.
[0011]
A leaf spring is provided between the members of the case 1 and the movable first moving table 8 and the second moving table 9 to urge one of the members toward the other so that play does not occur. That is, it is as follows. In order to prevent play in the left-right direction of the first moving base 8, the center part of the leaf spring 12 whose both ends press the inner side of the right side plate 1 c of the case 1 is coupled to the outer side of the right side plate 8 c of the first moving base 8. Has been. In order to prevent play of the second moving table 9 in the left-right direction, a leaf spring (not shown) that presses the inner side of the right plate 8 c of the first moving table 8 is attached to the inner side of the right plate 9 c of the second moving table 9. ing. In order to prevent play of the first moving table 8 in the vertical direction, an H-shaped leaf spring 16 is provided on the bottom surface of the back surface of the bottom plate 8a of the first moving table 8 with a screw 17 as shown in FIGS. Is provided. The leaf spring 16 has a plurality of bent portions, and four upper pressing portions 16 a that press the second moving base 9 and four lower pressing portions (not shown) that press the case 1 are formed. The four upper pressing portions 16a protrude upward from the four cutout portions 18 formed in the first moving table 8.
[0012]
(D) Moving drive means
In order to drive the moving unit 2 and pull the second moving table 9 out of the case 1 or insert it into the case 1, moving driving means 3 is provided on the first moving table 8. The movement drive means 3 is a movement motor that is a single movement drive source for driving both the first movement table 8 with respect to the case 1 and the second movement table 9 with respect to the first movement table 8. It is configured to do with. That is, as shown in FIGS. 3, 4, 6, and 7, a single movement is performed on the first moving table 8 located between the case 1, the movable first moving table 8 and the second moving table 9. While a pair of gears 21 and 22 driven by the motor 20 is provided, the case 1 and the second moving base 9 are provided with racks 36 and 37 that mesh with the gears 21 and 22, respectively. This will be described in detail below.
[0013]
As shown in FIG. 3, on the left side behind the first moving table 8, a base 8 a slightly higher than the bottom plate 8 a is formed by cutting and bending the bottom plate 8 a, while the second moving table 8 is formed. On the left side of 9, there are formed a hill 9 d for the hill 8 d to enter downward, and a moorish pedestal 9 e for escaping from the interference of the gears 21 and 22.
[0014]
The gears 21 and 22 are rotatably provided on the lower surface of the hill 8d and on the front surface side, and a gear 25 having a pinion gear portion 25a and a spur gear portion 25b meshing with both gears 21 and 22 as shown in FIG. Is provided. The moving motor 20 is attached to the rear side of the hill 8d, and the upper and lower halves of the moving motor 20 protrude approximately half from the upper and lower sides of the hill 8d. The moving motor 20 and the gear 25 are linked together through a gear group. That is, it is as shown in FIGS.
[0015]
A through shaft 27 penetrating the hill 8d is rotatably provided via a bearing, and a belt 31 is hung on a pulley 29 fixed to the upper end of the through shaft 27 and a pulley 30 fixed to the output shaft of the moving motor 20. ing. Toothed pulleys 29 and 30 and belt 31 are used. A pinion gear 32 is fixed to the lower end of the through shaft 27, and the pinion gear 32 includes a gear 33, a gear 34, a spur gear portion 35a, and a pinion gear which are provided on the lower surface of the pedestal 8d. It is linked to the gear 25 via a gear 35 composed of a portion 35b.
[0016]
Racks 36 and 37 are provided on the vertical portion 9 f on the right side of the high platform 9 d in the second moving platform 9 and the inside of the left side plate 1 b in the case 1. In order to constitute the locking means (described later) 4 for locking the second moving base 9 in a state where the second moving base 9 is completely accommodated inside the case 1, as shown in FIG. Consists of fixed racks 38 and 39 which are fixed and do not move, and movable racks 40 and 41 which are movable in the length direction of the rack by one tooth with respect to the fixed racks 38 and 39. The movable racks 40 and 41 are constituted by cooperating portions 40a and 41a integrally engaged with the fixed racks 38 and 39 and meshing with the gears 21 and 22, and independent portions 40b and 41b independently meshing with the gears 21 and 22, respectively. Cooperating portions 40a and 41a of the movable racks 40 and 41 are slidably provided on the fixed racks 38 and 39, respectively. Further, as shown in FIG. 7, in order to guide the movable racks 40 and 41, the movable racks 40 and 41 are formed with protrusions 40c and 40c and protrusions 41c and 41c, while the second movable table 9 and the case 1 are formed. Are formed with guide holes 42a and guide holes 43a and 43b (FIG. 3). Then, as a biasing means for biasing the movable racks 40, 41 so as to press the independent portions 40b, 41b toward the fixed racks 38, 39, as shown in FIG. One end of a spring 47 provided so as to surround 46 is inserted into a hole 40d formed in the movable rack 40, and the other end is hooked on a spring hooking portion 48 formed integrally with the second moving base 9, A compression coil spring 45 is provided so as to surround the rod portion 41 d of the movable rack 41 and the spring hook portion 44 provided so as to protrude inward from the left side plate 1 b of the case 1.
[0017]
(E) Locking means
As shown in FIG. 7, the lock means 4 for locking the second movable table 9 inside the case 1 includes a lock pin 50 erected on the front center side of the bottom plate 1 a in the case 1, and the second movable table 9. And a lock lever 51 provided rotatably at the center of the front surface. The lock lever 51 is rotatably provided on the fixed shaft 52, and an engaging portion 51 a formed integrally with the base end portion of the lock lever 51 is inserted through a notch 53 formed in the bottom plate 9 a of the second moving base 9. Projecting upward from the bottom plate 9a. One end of a spring 54 provided so as to surround the portion of the fixed shaft 52 that protrudes upward from the bottom plate 9 a is hung between a spring receiver 55 that protrudes from the bottom plate 9 a and the base end of the lock lever 51. The lock lever 51 is biased by a spring 54 in a direction to lock the lock pin 50. The lock pin 50 provided in the case 1 moves along a vertical trajectory slightly to the left of the fixed shaft 52 in FIG. 7 so as not to interfere with the fixed shaft 52, and the biasing force of the spring 54 is applied. When the lock lever 51 is tilted as shown in FIG. 7A, the lock pin 50 is restrained by the tip of the lock lever 51 and cannot move upward, and the lock pin 50 is locked. Since the lock pin 50 reaches the lower surface of the second moving table 9 provided with the lock lever 51 in a state of passing through the first moving table 8, the lock pin 50 moves through the bottom plate 8a of the first moving table 8. A long hole 56 is formed so as to make it possible.
[0018]
(F) Disk drive means
As shown in FIG. 3, the second moving table 9 is provided with a reproduction unit 59. In the reproduction unit 59, the disk drive means 5 and the pickup unit 6 are incorporated. When the CD is positioned at the center of the second moving table 9 and the reproducing optical pickup 60 is set to travel in the radial direction of the CD, the area of the bottom plate 9a of the second moving table 9 can be minimized. Is a case where the traveling direction of the optical pickup 60 is a diagonal direction of the bottom plate 9a, and the unit base 61 constituting the support portion is disposed at a position that satisfies such a purpose. As shown in FIGS. 3 and 4, three support columns 62 are erected on the bottom plate 9 a of the second moving table 9, and the unit base 61 is positioned on the support column 62 via a rubber cushioning material.
[0019]
The disk drive means 5 is provided in the unit base 61 at a position corresponding to the center of the second moving table 9. That is, a spindle motor (not shown) is attached to the lower surface of the unit base 61, and a turntable 67 for rotating the CD is fixed to the output shaft 66 of the spindle motor that protrudes upward through the unit base 61. . At the center of the turntable 67, a cylindrical convex portion 67a is formed that fits into the center hole of the CD. Further, a chucking means is provided for chucking the CD on the turntable 67 and for mounting the CD on the turntable 67 or removing it from the turntable 67 when a small force is applied.
[0020]
The configuration of the chucking means will be described below. Three concave portions are formed on the outer peripheral portion of the convex portion 67a at equal intervals of 120 degrees. A claw 68 having a stopper portion (not shown) is accommodated in the recess while being movable in the radial direction, and is biased outward by a spring (not shown). The tab 68 is formed with a tapered portion that converts the force received from the CD when the CD is inserted and removed into a force that presses the tab 68 toward the center of the convex portion 67a.
[0021]
The pickup unit 6 incorporated in the unit base 61 will be described. A slit 61 a is formed in the unit base 61 along a line passing through the center of the turntable 67. A guide means (not shown) for guiding the optical pickup 60 along the slit 61a and a traveling drive means (not shown) for reciprocatingly driving the optical pickup 60 along the slit 61a are provided. The description is omitted because it is the same as the configuration.
[0022]
(G) Tray etc.
As shown in FIG. 3, the corner corresponding to the moving motor 20 on the first moving table 8 in the second moving table 9 is cut away, and the moving motor 20 moves above the second moving table 9. It protrudes. 1 and 4, a printed board 81 is formed on the second moving table 9 so as to fill a portion excluding the reproducing unit 59 and the moving motor 20. On the printed board 81, the limit switch 83 for stopping the rotation of the moving motor 20 at the position where the second moving table 9 has moved from the first moving table 8 and the second moving table 9 are completely connected to the first moving table 8. A limit switch 84 for stopping the rotation of the moving motor 20 at the overlapping position is provided. The first moving table 8 has a notch 8e for moving the dog of the limit switch 83 and a stage for moving the dog of the limit switch 84. A portion 8f is formed.
[0023]
As shown in FIG. 3, a tray 85 made of a substantially square resin is mounted on the second moving table 9 via screws or the like that are screwed into a column 62 to which the reproduction unit 59 is mounted. The tray 85 is formed with a notch 85 a into which the reproduction unit 59 is fitted, and the tray 85 covers the printed board 81 and the moving motor 20. The tray 85 is formed with a circular disk recess 85b for loading a CD. A pair of notches 85c are formed to place or remove the CD on the tray 85 in the radial direction, and a translucent member 86 having an arc portion 86a is attached from the lower surface side of the tray 85. A part of the translucent member 86 is fitted in the notch 85c. In addition, when removing the CD on the tray 85, a circular recess 85d for holding the protrusion 67a of the turntable 67 with the middle finger or the index finger and lifting the outer periphery of the CD with the thumb is provided on the front side of the tray 85. It is formed at the left and right corners. Note that the distance A between the arc portions 86a in the left and right translucent members 86 in FIG. 5 is set to A = 11.5 cm, which is slightly smaller than the diameter of the CD, so that the CD can be easily mounted and removed.
[0024]
Light emitting diodes 92 are respectively provided at positions corresponding to the translucent member 86 on the printed board 81 in order to enable positioning of the CD to be placed by emitting light from the translucent member 86 portion.
[0025]
(H) Panel frame / moving panel
As shown in FIG. 9, an outer frame 10 is provided, and the case 1 is mounted in an upper part of the outer frame 10. A resin panel frame 87 is attached to the front side of the outer frame 10. The panel frame 87 is formed with an opening 87 a for drawing out and inserting the first moving table 8 and the second moving table (mounting unit moving body) 9.
[0026]
On the other hand, as shown in FIG. 3, a resin-made moving panel 88 is attached to the front side of the second moving table 9. The moving panel 88 is formed with a long through hole penetrating in the horizontal direction, and an insertion / removal switch 89 for pulling out and inserting the second moving base 9 to the outside of the case 1 is inserted at the left end of the through hole. A start switch 90 for rotating the CD is inserted at the right end of the through hole. Both the insertion / removal switch 89 and the start switch 90 are prevented from falling out of the through hole. A translucent member 91 is inserted and fixed between the insertion / removal switch 89 and the start switch 90 in the through hole.
[0027]
Next, the relationship between the panel frame 87 and the moving panel 88 will be described with reference to FIG. In a state where the second moving table 9 is completely accommodated inside the case 1, the moving panel 88 is fitted into the opening 87 a of the panel frame 87 so as to be closed.
[0028]
As shown in FIGS. 1 and 4, switches 93 and 94 are provided on the printed board 81 at positions corresponding to the insertion / removal switch 89 and the start switch 90. Light emitting diodes 95 are provided at positions corresponding to the insertion / removal switch 89, the start switch 90, and the translucent member 91 on the printed board 81, respectively.
[0029]
(I) Front panel opening / closing mechanism
As shown in FIG. 9, a recess 87b is formed in the panel frame 87, and an operation panel for opening and closing the opening 87a, that is, a front panel 100 is provided in the recess 87b so as to be openable and closable.
A configuration for opening and closing the front panel 100 will be described below. As shown in FIG. 9, the front panel 100 is detachably attached to the attachment plate 98, and a structure for moving the attachment plate 98 is provided.
[0030]
As shown in FIGS. 9 to 11, a left drive mechanism 99 and a right drive mechanism 101 for rotating a pair of levers are provided on the left and right of the inner front side of the outer frame 10. The mechanism parts are interlocked and connected via a shaft (power transmission means) 102. The left drive mechanism 99 is provided with a panel motor (panel drive means) 103. Hereinafter, each part will be described.
[0031]
First, the left / right drive mechanism units 99 and 101 will be described. In either case, a large gear (cam gear) 106 (FIG. 12A) is rotatably provided on the inner side of the support plates 104 and 105 via a shaft 106a, while the outer side of the support plates 104 and 105 is separated from the shaft 106a. A toothed lever 107 (FIG. 12B) is provided so as to be rotatable through a shaft 107a. A spiral groove 106b as a cam groove is formed on the surface of the large gear 106 facing the support plates 104 and 105, while an arc groove (not shown) centering on the shaft 107a is formed on the support plates 104 and 105. A pin 107b formed and fixed to the toothed lever 107 is inserted into the circular groove and loosely fitted into the spiral groove 106b. The toothed lever 107 is formed with teeth 107c along an arc centered on the shaft 107a. First and second arms 109 and 110 (see FIGS. 12C and 12D) are provided outside the support plates 104 and 105 so as to be rotatable by shafts 109a and 110a. (Hereinafter, the first arm 109 is referred to as a drive arm, and the second arm 110 is referred to as a driven arm).
[0032]
A toothed lever 111 having teeth 111a is fixed to the drive arm 109 along an arc centered on the shaft 109a, and the teeth 111a mesh with the teeth 107c. A spring 112 is provided to urge the driven arm 110 in a direction away from the drive arm 109. Leaf springs (not shown) for urging the drive arm 109 and the driven arm 110 toward the support plates 104 and 105 are provided inside the outer frame 10, respectively.
[0033]
The shaft 102 for interlocking the left and right drive mechanism portions 99 and 101 is rotatably provided at the lower part on the front side of the outer frame 10 via a bearing (not shown), and is a gear 113 fixed to both ends of the shaft 102. -113 meshes with the left and right large gears 106, respectively.
[0034]
The pair of drive arms 109 and driven arms 110 on the left and right sides are pivotally attached to the outside of the support plates 104 and 105 by the shafts 109a and 110a as described above, and the distal end portions. Are respectively pivotally coupled to upper portions of both ends of the mounting plate 98 of the front panel 100 by a pivotal connecting portion 141.
[0035]
The rotation connecting portion 141 is formed in a bearing hole 142 provided at the distal ends of the drive arm 109 and the driven arm 110, and screw holes 143 provided at both upper ends of the mounting plate 98 through the bearing hole 142. And a shaft 144 to be screwed.
[0036]
As shown in FIG. 11 (a), the shaft 144 is provided with a shaft main body portion 144 a having a smaller diameter than the bearing hole 142 and one end portion of the shaft main body portion 144 a and having a larger diameter than the bearing hole 142. Head portion 144b, and a male screw portion 144c which is provided at the other end portion of the shaft main body portion 144a and has a smaller diameter than the shaft main body portion 144a. Then, the shaft main body portion 144a and the male screw portion 144c are inserted into bearing holes 142 provided at the distal ends of the drive arm 109 and the driven arm 110, and the male screw portion 144c is provided at both upper ends of the mounting plate 98. By screwing into the screw holes 143, the leading ends of the drive arm 109 and the driven arm 110 are rotatably coupled to the upper ends of both ends of the mounting plate 98.
[0037]
As shown in FIG. 11B, a predetermined play gap G is set between the inner peripheral surface of the bearing hole 142 and the outer peripheral surface of the shaft main body portion 144a inserted therein.
[0038]
Here, as shown in FIG. 13A, when the front panel 100 is closed, the shaft 144 at the distal end of the drive arm 109 is relatively downward with respect to the shaft 144 at the distal end of the driven arm 110. Has been placed.
[0039]
In the state where the front panel 100 is closed, as shown in FIG. 13B, the outer space L1 between the bearing hole 142 of the drive arm 109 and the bearing hole 142 of the driven arm 110 is equal to the shaft 144 of the drive arm 109. And a value obtained by adding the play gap G to the maximum interval L2 of the shaft 144 of the driven arm 110 (L1 = L2 + G). This value is kept constant even when the front panel 100 moves from a closed state to an open state.
Next, a configuration for driving the left large gear 106 will be described with reference to FIGS. A support plate 116 is attached to the right side of the left support plate 104, and the panel motor (panel drive means) 103 is attached to the support plate 116. A worm gear mechanism is provided on the output shaft of the panel motor 103. The worm gear mechanism is arranged concentrically with a worm 117 fixed to the output shaft of the panel motor 103, a wheel 118 that meshes with the worm 117, and a large-diameter gear 119a and a large-diameter gear 119a that mesh with the wheel 118. A wheel 119 composed of a small diameter gear 119b, a large diameter gear 120a meshed with the small diameter gear 119b, a wheel 120 composed of a small diameter gear 120b concentrically with the large diameter gear 120a, a large diameter gear 121a meshed with the small diameter gear 120b, and a large diameter gear It is comprised with the wheel 121 which consists of the small diameter gear 121b arrange | positioned concentrically with the diameter gear 121a. The panel motor 103, the wheel 118, and the wheel 119 are provided on the support plate 116, while the wheel 120 and the wheel 121 are provided on the support plate 104.
The worm gear mechanism and the large gear (cam gear) 106 having the spiral groove 106b constitute a restraining means, and the driving arm 109 is restrained by the restraining means, so that the front panel 100 is restrained from moving.
[0040]
In order to stop the panel motor 103 when the front panel 100 moves to the fully open / closed state, a dog 106c is integrally formed inside the left large gear 106, while a limit switch is provided on the support plate 116. 123 and 124 are provided.
(J) Front panel attachment / detachment mechanism
As described above, the front panel 100 is detachably provided on the mounting plate 98. That is, it is as shown in FIG. A hooking means 125 for hooking the right side of the front panel 100 and a coupling means 126 for coupling the left side of the front panel 100 are provided.
[0041]
The hooking means 125 includes a protrusion 125 a formed on the mounting plate 98 and a protrusion 125 b formed on the front panel 100.
[0042]
On the other hand, as shown in FIG. 17, the coupling means 126 includes a main arm 126c that is supported rotatably about a shaft 126a and is biased toward the front side by a spring 126b, and a shaft at the tip of the main arm 126c. A pair of pins that protrudes downward and upward above and below an auxiliary arm 126f and a notch 98a formed in the mounting plate 98, which are provided so as to be rotatable about 126d and are biased forward by a spring 126e. 126g and an engaging recess 126h formed on the left side of the front panel 100 as shown in FIG. The auxiliary arm 126f has a temporary bearing portion 126i that engages with a pair of pins 126g to become a temporary bearing of the auxiliary arm 126f, and an engaging protrusion that rotates around the pin 126g and engages with the engaging recess 126h. 126j is formed. In addition, in order to press the pressed portion 126k of the main arm 126c and remove the front panel 100 from the mounting plate 98, as shown in FIG. It is provided in an energized state.
(K) Front panel configuration
The front panel 100 is provided with the following controls (switches). As shown in FIG. 9, the opening / closing switch 127 for opening / closing the front panel 100, the insertion / removal switch 128 for inserting / removing the CD, the music selection switch 129, the start switch 130 for starting reproduction, and the volume are increased / decreased. A volume switch 131 for switching, a mode changeover switch 132 for switching modes between CD and MD (mini disc), a display section 133 for displaying a song title and volume for music selection, and a power ON / OFF switch 134 Etc. are provided.
Since the front panel 100 is detachable from the mounting plate 98, a male connector 135 is provided on the back surface of the front panel 100 as shown in FIG. 16, while a female connector 136 is provided on the front surface of the mounting plate 98. 136 is electrically connected to the inside of the case 10 via a flexible harness (not shown).
[0043]
<Action>
Next, a procedure for accommodating and reproducing a CD in the case 1 will be described.
[0044]
(A) Opening and closing the front panel
First, in order to open the front panel 100 in the recess 87 b of the panel frame 87, the open / close switch 127 shown in FIG. 9 provided on the front surface of the front panel 100 is pressed to rotate the panel motor 103. Then, in FIG. 10, the rotation of the panel motor 103 is transmitted from the worm 117 to the left large gear 106 via the wheels 118 to 121, and further to the right large gear 106 via the gear 113 and the shaft 102. The large gear 106 rotates simultaneously in the same direction. At this time, since the pin 107b moves to the outside of the large gear 106 along the spiral groove 106b of the large gear 106, the toothed lever 107 rotates about the shaft 107a, and the tooth 107c portion moves to the front side. . For this reason, the drive arm 109 in which the toothed lever 111 having the teeth 111 a meshing with the teeth 107 c is integrated rotates about the shaft 109 a, and the front end of the drive arm 109 moves from top to bottom in front of the panel frame 87. Descent toward you. A mounting plate 98 is coupled to the distal end of the drive arm 109, and the distal end of the driven arm 110 is coupled to the mounting plate 98. When the front panel 100 is closed as shown in FIG. The position of the shaft 110a at the base end portion of the driven arm 110 and the length of the driven arm 110 are set so that the rotary connecting portion 141 of the driven arm 110 is positioned above the rotary connecting portion 141 of the arm 109. Has been. Then, when the panel motor (panel driving means) 103 is driven from the closed state of the front panel 100, the driving arm 109 and the driven arm 110 rotate about the shaft 109a and the shaft 110a at the base end portions, respectively. It moves to the fully open state of the front panel 100 shown in FIG. 15 through the half open state of the front panel 100 shown in FIG. When the front panel 100 is fully open, the driven arm 110 is pulled by the mounting plate 98 to the position shown in FIG. 15 against the urging force of the spring 112. When the front panel 100 attached to the attachment plate 98 pushes the limit switch 124 by the dog 106c of the left large gear 106 shown in FIG. 10, the rotation of the panel motor 103 stops. When the front panel 100 is in an open state, the worm 117 cannot be rotated from the wheel 118 and it is difficult to rotate the large gear 106 from the pin 107b. Is easy to operate.
[0045]
    Incidentally, as shown in FIG. 13B, the outer distance L1 between the bearing hole 142 of the drive arm 109 and the bearing hole 142 of the driven arm 110 is the outside of the shaft 144 of the drive arm 109 and the shaft 144 of the driven arm 110. It is set to a value obtained by adding the play gap G to the interval L2. This value is kept constant both when the front panel 100 is closed and when it is fully open.The
[0046]
  However, if the play gap G exists in the fully opened state of the front panel 100, the front panel 100 may be moved when an operating force (pressing force) is applied when operating an operator (switch) or the like provided on the front panel 100.MoveEnd up. In particular, in an in-vehicle device such as a car stereo, there is a tendency to use a so-called heavy touch operation element in order to clarify an operation touch.MovementMay increase the operation feeling.
[0047]
  FIG. 22 shows that the play gap G is substantially eliminated when the front panel 100 is fully opened.MovementAn embodiment which can prevent the above will be described. In this embodiment, the outer distance L1 between the bearing hole 142 of the driving arm 109 and the bearing hole 142 of the driven arm 110 when the front panel 100 is closed is equal to the outer side of the shaft 144 of the driving arm 109 and the shaft 144 of the driven arm 110. The distance L2 is a value obtained by adding the play gap G, and the outer distance L3 between the bearing hole 142 of the driving arm 109 and the bearing hole 142 of the driven arm 110 when the front panel 100 is fully opened is A movement locus R1 of the tip end portion (bearing hole 142) of the drive arm 109 so as to be equal to or greater than the value obtained by adding the play gap 2G to the outer space L2 between the shaft 144 and the shaft 144 of the driven arm 110 (L3 ≧ L2 + 2G); A movement locus R2 of the distal end portion (bearing hole 142) of the driven arm 110 is set.
[0048]
  FWhen the driven arm 110 is rotated to the position where the front panel 100 is fully opened, the protrusion 151 provided on the driven arm 110 isProvided on the drive arm 109Abuts against the protrusion abutting portion 152The
[0049]
  Accordingly, in the fully opened position of the front panel 100, the play gap G is substantially lost, and the front panel 100 is caused by the presence of the play gap G.MovementIt is possible to improve the operability and operation feeling of the operation element (switch) provided on the front panel 100.
[0050]
(B) Moving table drawer
Next, in the state of FIG. 15, the insertion / removal switch 89 of the moving panel 88 or the insertion / removal switch 128 of the front panel 100 is pushed. Then, the movement motor 20 starts to rotate, the rotational force of the movement motor 20 is transmitted to the gear 25 through the gear group, and the gears 21 and 22 rotate in the same direction. Then, the movable racks 40 and 41 engaged with the gears 21 and 22 in FIG. 6 move in opposite directions as indicated by arrows. At this time, as shown in FIG. 8, the movable rack 40 is first moved by one tooth s relative to the fixed rack 38, for example. When one movable rack 40 moves downward s in the figure from the state of FIG. 7 (a), the step 40e of the movable rack 40 pushes the engaging part 51a downward in the figure, and the lock lever 51 moves to the spring 54. It rotates about the fixed shaft 52 against the urging force, and the tip of the lock lever 51 deviates from the track of the lock pin 50 as shown in FIG. The gear 21 rolls along both the fixed rack 38 and the movable rack 40 while being shifted by one tooth s, while the gear 22 rolls along both the fixed rack 39 and the movable rack 41. The case 1 and the second moving table 9 protrude in opposite directions with respect to the moving table 8. In other words, the first moving table 8 moves to the front side with respect to the case 1 and the second moving table 9 moves to the front side with respect to the first moving table 8. Thereby, after the moving panel 88 comes out of the opening part 87a of the panel frame 87, the 1st moving stand 8 and the 2nd moving stand 9 protrude from the opening part 87a in order, and the substantially whole of the 2nd moving stand 9 is case 1. And the CD is ejected as shown in FIGS. Then, when the dog of the limit switch 83 enters the notch 8e, the movement motor 20 stops rotating.
[0051]
(C) Inserting the disc and inserting the moving table
Thereafter, the CD is sandwiched between the thumb and the middle finger from the radial direction, placed on the tray 85, the convex portion 67a of the turntable 67 is inserted into the hole of the CD, and the vicinity of the center of the CD is pushed downward. Then, the CD is chucked on the turntable 67 by a claw 68 pushed outward by a spring (not shown). In order to chuck the CD in the dark such as at night, the pair of translucent members 86 and the single translucent member 91 are illuminated by the light emitting diode 92 so that the CD mounting position becomes clear. It has become.
As shown in phantom lines in FIG. 15, the state in which the second moving table 9 is pulled out, the insertion / removal switch 128 on the front panel 100 is located below the second moving table 9 and is difficult to operate. When the insertion / removal switch 89 on the moving panel 88 is pressed, the moving motor 20 rotates in the opposite direction, and the first moving table 8 and the second moving table 9 are inserted into the case 1 (FIGS. 1 and 2 state).
[0052]
When the first moving table 8 and the second moving table 9 are accommodated in the case 1, the lock pin 50 moves relatively to the front side along the lower surface of the second moving table 9, and the biasing force of the spring 54 is The lock lever 51 is rotated against this, and then returns. That is, when the first moving table 8 and the second moving table 9 are completely accommodated in the case 1, the lock pin 50 is locked by the tip of the lock lever 51. At this time, the dog of the limit switch 84 is engaged with the step portion 8f, and the rotation of the moving motor 20 is stopped. Further, since the gears 21 and 22 move to a position disengaged from the fixed racks 38 and 39 and rotate a little, the gears 21 and 22 mesh with only the movable racks 40 and 41 so that the movable racks 40 and 41 are moved by one tooth. And move it in the opposite direction to return it to its original position.
[0053]
(D) Disc playback
When the CD is stored in the case 1 as described above, the open / close switch 127 is pressed to close the front panel 100. When the front panel 100 is closed, the dog 106c in FIG. 10 presses the limit switch 123, and the panel motor 103 stops. Thereafter, the music selection switch 129 is pressed to select the music, and the start switch 130 on the front panel 100 is pressed. Then, when the second moving table 9 is inserted as described above, the spindle motor rotates and the CD on the turntable 67 starts rotating while the lock pin 50 is locked by the lock lever 51. The optical pickup 60 moves in the slit 61a along the radial direction of the CD, and the CD is reproduced.
If it is desired to play the CD faster, the start switch 90 on the moving panel 88 may be pushed before the front panel 100 is closed. Originally, the insertion / removal switch 128 is pushed to store the CD, and then the start switch 130 should be pushed after the front panel 100 is closed, and the reproduction is started only by pushing only the start switch 90.
[0054]
(E) Ejecting the disc from the moving table
After the reproduction is completed, the front panel 100 is opened by pressing the open / close switch 127, and then the insertion / removal switch 89 or the insertion / removal switch 128 is pressed to pull the second moving base 9 out of the case 1 and remove the CD from the turntable 67. . In this case, the CD may be sandwiched and pulled upward at the position of the pair of arc portions 86a, or the thumb or the index finger may be put on the convex portion 67a and the thumb may be put into the thumb concave portion 85d to be lifted. . After removing the CD, the insertion / removal switch 89 is pressed again to house the second moving base 9 in the case 1, and the open / close switch 127 is pressed to close the front panel 100.
(F) Attaching and removing the front panel
When leaving the car, the front panel 100 can be removed so that the disc player is not recognized and cannot be operated even if the disc player is stolen. When the release button 126m shown in FIG. 18 (a) is pushed, the pressed portion 126k is pushed, so that the main arm 126c is slightly rotated from the position of FIG. 19 to the back side to occupy the position of FIG. The portion of the shaft 126d in 126f moves slightly to the back side, and the pin 126g does not move, so the temporary bearing portion 126i comes off from the pin 126g, and the auxiliary arm 126f is centered on the shaft 126d by the action of the spring 126e as shown in FIG. It turns to the front side. For this reason, the engagement protrusion 126j comes off from the engagement recess 126h of the front panel 100, and the front panel 100 can be removed. At this time, the male connector 135 is disconnected from the female connector 136.
[0055]
Next, when the front panel 100 is mounted, the left side of the front panel 100 is pressed against the mounting plate 98 in a state where the projection 125b on the right rear surface of the front panel 100 in FIG. . Then, it is the reverse of the removal, and since the spring constant of the spring 126b is larger than the spring constant of the spring 126e, the main arm 126c is moved after the auxiliary arm 126f rotates about the shaft 126d from the state of FIG. When the shaft 126a is rotated to the rear side about the shaft 126a to be in the state shown in FIG. 20 and the pressing force to the front panel 100 is removed after the temporary bearing portion 126i is engaged with the pin 126g, the main arm is moved by the biasing force of the spring 126b. 126c is slightly rotated forward about the shaft 126a to be in the state of FIG. 19, and at this time, the temporary bearing portion 126i is hooked on the pin 126g, and the auxiliary arm 126f is slightly rotated to the front side around the pin 126g. The engagement protrusion 126j enters the engagement recess 126h of the front panel 100, and the front panel 100 is attached to the mounting plate 98. That.
In this embodiment, the disk recording and / or reproducing apparatus is applied to a disk player as a disk reproducing apparatus. However, the present embodiment is applied to a disk recording apparatus or an apparatus that records and reproduces a disk. Also good. A CD with a diameter of 120 mm is used, but a CD with a diameter of 80 mm can also be reproduced.
In the present embodiment, the case where the recording medium is only a CD is shown. However, a combination of a CD and a memory card, a CD and a cassette tape, or the like may be used. Furthermore, in the present embodiment, the case where only one of the first and second arms is a drive arm is shown, but both may be drive arms.
[0056]
【The invention's effect】
  As can be seen from the above description, according to the front panel opening / closing mechanism of the recording and / or reproducing apparatus according to claim 1, the front of the panel frame is opened while the operation portion of the front panel faces outward.Fully openOpen to position, fully open positionThe operation unit can be easily operated.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of a disc recording and / or reproducing apparatus according to the present invention.
FIG. 2 is a plan view showing an embodiment of a disc recording and / or reproducing apparatus according to the present invention.
FIG. 3 is an exploded perspective view showing an embodiment of a disk recording and / or reproducing apparatus according to the present invention.
FIG. 4 is a perspective view showing a state in which a movable table is pulled out from a case according to an embodiment of a disk recording and / or reproducing apparatus according to the present invention.
FIG. 5 is a plan view showing a state in which the movable table is pulled out from the case according to the embodiment of the disc recording and / or reproducing apparatus according to the present invention.
FIG. 6 is a perspective view of a moving drive means for driving a moving table according to the embodiment of the disk recording and / or reproducing apparatus according to the present invention.
FIG. 7 is a plan view for explaining the configuration and operation of the driving means for movement and the locking means.
FIG. 8 is a plan view for explaining the operation of the locking means.
FIG. 9 is an exploded perspective view showing the relationship between the outer frame and the panel.
FIG. 10 is a configuration diagram showing a left drive mechanism.
11A is a perspective view of a left drive mechanism portion, and FIG. 11B is a cross-sectional view of a shaft portion.
FIG. 12 is a component diagram constituting left and right drive mechanisms.
FIG. 13A is an explanatory view showing a state in which the front panel is closed, and FIG. 13B is a cross-sectional view of the main part.
FIG. 14 is an explanatory diagram showing a state where the front panel is slightly opened.
FIG. 15 is an explanatory view showing a state in which the front panel is completely opened.
FIG. 16 is an explanatory diagram when removing the front panel.
FIG. 17 is an exploded perspective view of the coupling means of the front panel.
FIG. 18 is an explanatory diagram of a release button provided on the front panel.
FIG. 19 is a plan cross-sectional view of a state where a front panel is mounted.
FIG. 20 is a plan sectional view showing a state where a release button is pressed.
FIG. 21 is a plan sectional view showing a state immediately before the front panel is removed.
FIG. 22 is an explanatory diagram of another embodiment.
[Explanation of symbols]
10 ... Outer frame
87 ... Panel frame
87a ... Opening
88 ... Movement panel
100 ... Front panel
102 ... shaft
103 ... Panel motor
109 ... Drive arm
110 ... Follower arm
117 ... Warm
118 ... Wheel
141... Rotating connection part

Claims (2)

The recording and / or reproducing apparatus front panel operation unit to the front is provided for closing the opening provided in the panel frame an opening is formed for insertion and removal of the recording medium of the opening closes recording and / Or a front panel opening and closing mechanism of the playback device,
The base end portions of the first and second arms are rotatably connected to the lower two points on both sides of the outer frame of the recording and / or reproducing apparatus, and the distal ends of the first and second arms, respectively. Are connected to each other so that the front panel can be operated by driving at least one of the first and second arms as a drive arm. Rotate from the fully closed position to the fully open position that opens the front of the panel frame in a state facing outward ,
Each of the first and second arms has a base end portion that is rotatable about an axis, and a tip end portion that is inserted into the bearing hole and the shaft that is screwed into the front panel. A front panel opening / closing mechanism of a recording and / or reproducing apparatus, wherein the front and rear ends of the front panel are rotatably connected to each other by a rotational connecting portion . The first front panel from the fully closed position so as to be movable in the fully open position, the axial spacing and the first proximal end of the second arm, the bearing hole spacing and the tip portion of the second arm first 1, the distance between the axes mounted on the front panel of the shaft and the distal portion of the proximal end of the second arm is set in the front panel is moved to the fully open position from the fully closed position according to claim 1, came the shaft attached to the front panel when the is characterized in that contact with the inner surface of the first, the side faces of the bearing hole of the tip of the second arm A front panel opening / closing mechanism of the recording and / or reproducing apparatus.

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