JP2665659B2 - Switch operating device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] An information recording disk for recording, for example, a pulse-coded digital information signal such as audio or video as a row of minute projections (pits) on the surface of the disk. There is. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switch operating device in a drive device for such an information recording disk represented by a digital audio disk (trade name: compact disk). [Prior Art] As a conventional disk drive, for example,
In 234276 and JP-A-60-116604, a manual type has been proposed. In this method, the disc and the cleaning member are manually rotated relative to each other to wipe off dust and fingerprints attached to the disc surface. A so-called electric disk cleaner is commercially available in which a disk and a cleaning member can be driven to rotate by a motor, and cleaning can be performed only by setting the disk at a predetermined position. For example, FIG. 12 shows an example of such a disk cleaner. This disk cleaner is generally configured as a record player, and sets a disk 3 on a mounting surface 2 recessed on the upper surface of a main body 1. The disk 3 is driven to rotate by a drive shaft 18 engaged with the center thereof, and at the same time, the cleaning member 4 buried in one place of the mounting surface 2 is also driven to rotate, thereby cleaning the disk surface (mounting surface side). I do. The outer surface of the disk mounting surface 2 is covered with a cover 5 supported on the main body 1 so as to be swingable and openable. A switch for starting a motor (not shown) is provided at the front corner of the main body 1 outside the closed range of the cover 5.
Forty operating members are arranged. [Problems to be Solved by the Invention] When the operating member of the switch 40 for starting the motor is disposed so as to be exposed on the outer surface of the main body as described above, the switch 40 may be turned on by mistake. . For example,
The switch 40 may be turned on when loading or unloading the disk 3. In such a case, the disk 3 is driven to rotate while the disk 3 is in an incompletely mounted position or during removal, and the protective layer on the surface may be damaged. In some cases, the disc 3 is bounced off and damaged. SUMMARY OF THE INVENTION It is an object of the present invention to improve the operation structure of a switch for starting a motor so that starting of the motor due to an erroneous operation can be reliably prevented. [Means for Solving the Problems] According to the present invention, the main body 1 is provided with a motor 9 for driving the disk 3 or the cleaning member 4 and a switch 40 for controlling power supply to the motor 9 as shown in the illustrated example. A disk mounting surface 2 on the upper part of the main body 1, a cover 5 for covering the upper part of the disk mounting surface 2 is openably and closably mounted on the main body 1, and the switch 40 is connected to the front disk mounting surface 2;
The switch 40 is disposed outside the upper region and at a position facing the cover 5 with the cover 5 closed.
Is mounted on the upper wall of the cover 5 corresponding to the position of the switch 40. [Operation] If the operation member 45 of the switch 40 is provided on the upper wall of the cover 5 that covers the upper side of the disk mounting surface 2, the cover 5 must be closed to operate the operation member 45 in use. For this reason, for example, when the disk 3 is taken in and out with the cover 5 opened, the operation member 45 of the switch 40 is moved from the disk mounting surface 2 side when the cover 5 is a swing type with respect to the main body 1. Looking at it, the open cover 5
Of the main body 1
In the type that separates from the slide or the slide opening and closing type, it will be separated from the disc mounting surface and will have a sufficient distance,
In any case, the disc 3 and the hand do not accidentally touch the operation member 45. The operated portion of the switch 40 of the main body 1 is, for example, in the region on the disk mounting surface 2, that is, the projecting end of the drive gear 14 protruding from the center on the disk mounting surface 2 (see FIG. 4).
If the disc 3 is set in such a position, the disc 3 is rubbed against the part to be operated by the switch 40 when the disc 3 is inserted into or taken out of the disc mounting surface 2 to damage the disc board surface, or the switch 40 is inadvertently covered. Since the operation part is easily touched by the hand and erroneously operated, the significance of the provision of the operation member 45 on the cover 5 tends to be lost. However, in this invention, since the switch 40 is arranged outside the area on the disk mounting surface 2 of the main body 1, the disk 3 is put in and out of the disk mounting surface 2 with the cover 5 opened. At times, it is possible to prevent the disc 3 and the hand from touching the switch 40 carelessly. Therefore, when the disc 3 is taken in and out with the cover 5 opened, an erroneous operation of rotating the disc 3 accidentally can be reliably prevented. When the disk 3 is driven to rotate by operating the operation member 45, the cover 5 is closed.
It is possible to prevent accidents such as bouncing off. Embodiment FIGS. 1 to 9 show an embodiment in which the present invention is applied to a disk cleaner for a digital audio disk. In FIGS. 2 and 3, the disc cleaner is
The disk 3 is mounted on the disk mounting surface 2 provided on the upper surface of the main body 1, and the upper surface thereof is wiped with the cleaning member 4 while the disk 3 is kept still. Cleaning member 4
Is supported by the inner surface of a cover 5 that covers the entire upper surface of the main body 1, and is driven to rotate only by the drive mechanism 6 provided on the main body 1 when the cover 5 is closed. The main body 1 is composed of an upper case 1a and a lower case 1b. A disk mounting surface 2 is recessed on the upper surface of the upper case 1a, and a rubber mat 7 slightly smaller in diameter than the disk 3 is laid on the surface. A chamber 10 for accommodating the battery 8 and the motor 9 is defined at the rear end of the main body 1 so as to protrude above the disk mounting surface 2. Triangular sections 11 and 12 project from the left and right corners of the front end of the main body 1 at the same height as the chamber 10. The drive mechanism 6 is provided between the drive gear 14 and the motor 9 projecting upward from the center of the disk mounting surface 2, and the power of the motor 9 is transmitted via the worm 15, the worm gear 16, and the timing belt 17 in this order. To drive gear 14. The drive gear 14 is freely rotatably supported by a boss on the inner surface of the lower case 1b via a pin 18. The cleaning member 4 includes a cross-shaped arm 20, a holder 21 rotatably supported on the lower surface of the tip of each arm, and a ring-shaped pad 22 fixed to the holder 21. The holder 21 is urged downward by a coil spring 24. In order to allow each pad 22 to move while sliding on the disk 3 substantially in the radial direction, that is, even if a scratch occurs unexpectedly, the scratch is formed so as to intersect with the pit row. For this purpose, a cycloid mechanism 25 is provided between the arm 20 and the cover 5. The cycloid mechanism 25 includes an internal gear 26 fixed to the inner surface of the cover 5, a planet gear 27 that meshes with the internal gear 26 formed on the upper surface of the arm 20, and the entire arm 20 around the central axis 28 of the internal gear 26. And a support arm 29 for supporting the support arm 29. The arm 20 revolves while rotating by the cycloid mechanism 25, and each pad 22 wipes the disk 3 while drawing a circulating trajectory as shown in FIG. In the center of the lower surface of the arm 20,
Internal gear 30 that inherits power from drive gear 14 of drive mechanism 6
Is formed. The cover 5 is supported on the side wall of the chamber 10 of the main body 1 via a shaft 32 so as to swing up and down freely. The internal gear 30 meshes with the drive gear 14 by closing the cover 5. As shown in FIG. 8, in order to lock and hold the cover 5 in the closed position, a lock knob 33 and a spring 34 for urging the lock knob 33 to the locked position are provided in the section 12. Further, an engaging portion 35 is formed in the inner surface of the front wall of the cover 5 so as to correspond to the lock knob 33. When the cover 5 is closed, the lock knob 33 automatically engages with the engaging portion 35. When the lock knob 33 is pushed in the direction of the arrow, the lock is released, and the eject pin 36 provided next to the lock knob 33 pushes up the projecting piece 37 provided on the inner surface of the cover 5 to open the cover 5. The start and stop of the motor 9 are performed by two switches 39 and 40 shown in FIG. One switch 39 is arranged at one peripheral edge in the disk mounting surface 2 and detects that the disk 3 is correctly mounted on the mat 7. As shown in FIG. 6, the switch 39 includes a leaf spring 41 having one end fixed, a detection piece 42 fixed at an intermediate portion thereof, a movable contact terminal 43 and a fixed terminal 44 which are opened and closed by the leaf spring 41. Consists of The detection piece 42 is always urged to protrude above the mat 7.
And the leaf spring 41 is deformed downward. In this state, the switch 39 is turned on. As shown in FIGS. 1 and 2, the switch 40 is used to place the disk 3 on the disk mounting surface 2 or to carelessly touch the switch 40 when the disk 3 or the hand touches the switch 40 when the disk 3 is taken out. So that it cannot be operated
It is arranged on the inner bottom of the section 11 provided outside the area on the disk mounting surface 2 of the main body 1. An operation member 45 is mounted on the cover 5 for switching the switch 40. The operation member 45 is formed in a rivet shape with an operation pin 46 and an operation button 47 protruding from the upper end of the operation pin 46, and a button hole formed in the upper wall of the cover 5.
Cover 5 that can be freely moved in and out with operation button 47 fitted in 48
It is assembled in. The operating member 45 is urged toward the outside of the hole by the coil spring 49, but the retaining piece 50 that protrudes in the middle of the operating pin 46 is brought into contact with the bottom wall of the button hole 48 to prevent its removal. I have. With the cover 5 closed, the operating member 45
An operation hole 51 is opened in the wall covering the upper part of the section 11 so that the operation pin 46 of the switch penetrates the wall covering the upper part of the section 11 and approaches the operator 4a of the switch 40. Operation member from this state
By pressing the 45, the switch 40 is switched to the on (or off) state. As described above, the switch 40 is provided inside the main body 1.
By disposing the operation members 45 on the cover 5 so that a standby state in which the switch 40 can be switched when the cover 5 is closed is obtained, the cover 5 can be closed with only one switch 40. Confirmation and subsequent activation of the motor 9 can be reliably performed. So switch
In addition to preventing the ON operation of the cover 40 due to an erroneous operation, the closing of the cover 5 can be confirmed without using extra switches. Further, since the cover 5 is locked and held by the lock knob 33 when in the closed position, it is possible to prevent the cover 5 from accidentally moving or rattling from side to side when switching the switch 40, thereby ensuring reliable switching. it can. Furthermore, since the switch 40 and the operating member 45 are provided on the swinging tip side of the cover 5, the operating member 45 cannot be operated until the cover 5 is completely closed. The closing of the cover 5 can be confirmed more reliably than when the cover 5 is provided. [Modification] The switch 40 can be changed to another type of switch structure such as a sliding type or a falling type. The operation member 45 can also be changed to a sliding type or a falling type according to the structure and the arrangement position of the switch 40. For example,
FIG. 10 shows an example in which the operation member 45 is slid and the switch 40 can be switched. As in this embodiment, the operation member 45 and the switch 40 do not necessarily have to be vertically separated. FIG. 11 shows a modification in which the switch 40 is a non-contact type. In this case, the light emitting body 52 and the light receiving element 53 use the switch 40.
After the cover 5 is closed, the optical path 54 connecting the two 52 and 53 is blocked by the operating member 45 provided on the cover 5 so that the power supply path to the motor 9 is closed. Apart from such an optical sensor type, the switch 40 may be a non-contact type using a reed switch. For example, a reed switch and a magnet for turning on the reed switch are prepared, and one of them is disposed in the main body 1 and the other is disposed on the operation member 45 provided on the cover 5, respectively.
By operating the operation member 45 after the is closed, the reed switch is turned on, and the motor 9 can be started. The cover 5 does not necessarily need to be opened and closed by swinging,
It may be one that is completely separated or one that slides open and closed. [Effects of the Invention] As described above, according to the present invention, the switch 40 for controlling the power supply to the motor 9 and the operation member 45 thereof are separated, and the switch 40 is provided on the main body 1 side, and the operation member 45 is provided on the disk. It is provided on the upper wall of the cover 5 that covers the upper side of the mounting surface 2. Therefore, for example, when the cover 5 is opened and the disc 3 is taken in and out, the switch 40 is erroneously operated and the motor 9 is prevented from being accidentally started, thereby preventing the disc 3 from being damaged or damaged. The operation member 45
When the user drives the disk 3 to rotate, the user is prompted to close the cover 5, and the disk 3 can be driven to rotate safely without splashing. In particular, the switch 40 is arranged outside the area on the disk mounting surface 2 of the main body 1 and the operating member 45 is
Since it is provided on the upper side of the cover 5 corresponding to the position of 40, the switch operation by the operation member 45 can be secured,
When the cover 3 is opened and the disc 3 is put in and taken out of the disc mounting surface 2 as long as the disc 3 and the hand can inadvertently touch the switch 40, it can be avoided. And the safety can be further improved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 to FIG. 9 show an embodiment of the present invention, FIG. 1 is a longitudinal sectional front view showing a relational structure between a switch and an operation member, and FIG. FIG. 3 is a longitudinal sectional side view, FIG. 4 is a longitudinal sectional side view with the cover opened, FIG. 5 is a plan view showing the movement locus of the cleaning member, and FIG. 6 is AA in FIG. FIG. 7 is an electric circuit diagram for supplying power to the motor, and FIG.
9 is a sectional view taken along line CC in FIG. 8; FIG. 10 is a vertical sectional side view showing a modification. FIG. 11 is a vertical sectional front view showing a modification of the switch. FIG. 12 is a perspective view of a conventional disk cleaner. DESCRIPTION OF SYMBOLS 1 ... Main body, 2 ... Disc mounting surface, 3 ... Disc, 4 ... Cleaning member, 5 ... Cover, 9 ... Motor, 40 ... Switch, 45 ... Operation member.

   ────────────────────────────────────────────────── ─── Continuation of front page    (56) References JP-A-58-141470 (JP, A)                 JP-A-56-16960 (JP, A)                 JP 50-56916 (JP, A)                 60-74293 (JP, U)                 Shokai Sho 56-82739 (JP, U)

Claims (1)

(57) [Claims] The main body (1) is provided with a motor (9) for driving the disk (3) and a switch (40) for controlling power supply to the motor (9), and a disk mounting surface (2) is provided on the upper part of the main body (1). And a cover (5) for covering the upper side of the disk mounting surface (2) is openably and closably mounted on the main body (1), and the switch (40) is provided in an area on the disk mounting surface (2). The cover (5) is disposed outside and at a position facing the cover (5) with the cover (5) closed, and the operating member (45) of the switch (40) is attached to the upper wall of the cover (5) by the switch (40) A switch operating device which is mounted so as to correspond to the position of (40).