JPH0210563Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a static eliminator for record discs for removing static electricity from a record disc, in which a static eliminator brush is brought into contact with a sounding part of the record disc, and the brush is moved relative to the record disc. When static electricity is removed from the record while the record is being rotated, the static electricity removal brush is moved back and forth in the radial direction of the record, thereby uniformly removing static over the entire surface of the record.

As a static eliminator for removing static electricity from a record, a static eliminating brush made of a grounded conductive material is brought into contact with a sound part of the record to drain away static electricity from the sound part. There is something.
FIG. 7 shows a static eliminator brush used in this type of static eliminator, in which the static eliminator brush a is formed by implanting brush bristles c made of a conductive material on the lower surface of a long plate b. However, due to processing technology, it is difficult to plant the brush bristles c evenly on the lower surface of the long plate body b, and as shown in the figure, they are intermittently planted in bundles at a constant pitch t. For this purpose, the static elimination brush a is brought into contact with the sounding part of the record disc d with its length direction aligned with the radial direction of the record disc d, and the static elimination brush a is rotated over the record disc d around the spindle to eliminate static electricity from the record disc d. When performing this, only the portion e where the brush bristles c come into contact is removed in a striped manner, and the portion f corresponding to the pitch t is removed.
was not neutralized. As shown in FIG. 8, this kind of static eliminator is equipped with a roll-shaped cleaning rotary brush g behind the static eliminator brush a, and a drive wheel h is driven to move the main body case 1 around the spindle to the record disc d. There is a device that removes static electricity and cleans the record disc d at the same time by self-propelled in the circumferential direction, but in this type of device, dust j accumulates at the front of the brush bristles c, j
The dust j is not cleaned and removed by the rotating brush g at the rear, and when the device is removed from the record disc d after a predetermined work is completed, the dust j remains attached to the record disc d.

Therefore, the present invention was devised for the purpose of providing a static eliminator for record discs that eliminates the drawbacks of the conventional ones. Built into the case, the brush bristles of the static elimination brush are exposed from the bottom of the main case and brought into contact with the sound part of the record along the radial direction, and the brush is moved relative to the record around the spindle. A static eliminator for a record disc is configured to eliminate static electricity from the record disc while rotating the record disc, and the static elimination brush is driven by the motor to reciprocate in the radial direction of the record disc. In this way, the entire surface of the record can be uniformly neutralized. Embodiments of the present invention will be described below with reference to the drawings, taking as an example a static eliminator that simultaneously eliminates static electricity and cleans a record disc.

1 to 3, reference numeral 1 denotes a long box-shaped main body case which is the main body of the static eliminator A, and the main body case 1 consists of a base end 1a and a distal end 1b connected to the base end 1a. It is completed. A speed reduction mechanism 11 consisting of a motor 2, a power battery 3, and a gear group is built into the base end 1a. A spindle fitting opening 4 into which a spindle 40 (see Fig. 4) installed on a record stand such as a turntable 39 (see Fig. 4) is opened at the bottom of the base end 1a, and a drive wheel 5 for self-propelled turning is opened at the bottom. It is provided so as to slightly protrude from the opening 6. The driving wheel 5 is rotated at a speed of about 200 to 300 R.P.M by the motor 2 via the speed reduction mechanism 11. Reference numeral 7 denotes a guide groove for guiding the spindle 40 to the fitting opening 4 during installation. Reference numeral 8 denotes a switch button provided on the upper surface of the base end 1a, and when the above-mentioned fitting hole 4 is fitted into the spindle 40 on the turntable 39 side and the device A is set on the record disc 9, the button 8 is pressed. Then, the driving wheel 5 is driven by the motor 2 and rolls on the label surface of the record disc 9, and the device A is moved onto the record disc 9.
The record disc 9 is self-propelled and rotates around the spindle in the circumferential direction of the record disc 9. 12 is a driven wheel provided on the bottom surface of the base end portion 1a.

10 is a roll-shaped cleaning rotating brush,
The tip 1b along the length direction of the tip 1b.
The device A is supported toward the rear in the self-propelled direction, and a part of its circumferential body surface is slightly exposed through an opening 11 formed in a rectangular shape along the length direction on the bottom surface of the tip portion 1b. When set on the record 9, the tip of the bristles lightly contacts the sound part of the record 9. Rotating shaft 13 of rotating brush 10
The distal end is rotatably supported by a bearing 14 provided on the inner surface of the front wall of the main body case 1, and the rear end extends toward the proximal end 1a side and rotatably supported by a bearing 19, and the rotating shaft 13 A drive shaft 4 connected to
The rear end of the motor 2 is connected via a large diameter pulley 15 and a belt 18 to a small pulley 17 fixed to the output shaft 16 of the motor 2. Therefore, the rotating brush 10 is rotated by the rotation of the motor 2.
Rotates at about 3000R/P/M. Reference numeral 20 denotes a static elimination brush, in which bristles 20b made of a conductive substance such as carbon fiber or stainless steel wire are intermittently planted in bundles at a constant pitch t on the lower surface of a conductive rectangular plate body 20a. It is formed by An elongated rectangular opening 36 is formed along the length of the bottom surface of the tip 1b slightly forward in the self-propelled direction, and the tips of the brush bristles 20b are passed through the opening 36 to the tip of the rotating brush 10. It protrudes so as to be substantially flush with the surface of the record disc 9, and lightly contacts the sound part of the record 9 along the radial direction. Long plate body 20a
A receiving plate 24 is attached to the tip of the receiving plate 2.
4 and a seat plate 25 fixed to the inner surface of the front wall of the distal end 1b, a coil spring 26 is interposed, and the spring force of the spring 26 keeps the elongated plate 20a
It is biased toward the a side. A cap 27 is attached to the rear end of the long plate 20a, and the rear surface of the cap 27 is brought into elastic contact with the outer peripheral surface of the eccentric cam 28 by the force of the spring 26. A bevel gear 30 is attached to the end of the attachment shaft 29 of the cam 28, and a bevel gear 31 having fewer teeth than the bevel gear 30 meshes with the bevel gear 30. A pulley 33 is attached to the end of the mounting shaft 32 of the bevel gear 31.
is attached, and an endless belt 34 is stretched between the pulley 33 and the drive shaft 42. 3
5 and 35 are U-shaped holding members erected above the opening 36, and the elongated plate body 20a is loosely fitted into the holding members 35 and 35. Reference numeral 36 denotes ribs protruding from the inner surfaces of both walls and the upper wall of the holding member 35, and when the long plate body 20a is loosely fitted into the holding members 35, 35, these ribs 36 are attached to the long plate body 2.
Lightly touch both walls and top surface of 0a. In the above configuration, the rotation of the motor 2 is controlled by the cam 28 while being sped up via the pulley 33 and bevel gears 31 and 30.
The cam 28 rotates slowly, but
As the cam 28 rotates, the static eliminating brush 20 is elastically supported on the outer peripheral surface of the cam 28 by the spring 26.
slowly reciprocate in the radial direction of the record 9 (see Fig. 5 a, b, c).

Reference numeral 37 denotes a grounding conductor, which is attached to a support rod 38 erected on the bottom plate of the base end 1a.
The tip curved portion 37a is in contact with the upper surface of the elongated plate body 20a, and the rear end curved portion 37b is located above the spindle fitting opening 4 and lightly touches the upper end of the spindle 40 fitted from the fitting opening 4. Due to the elastic contact, the electrical charge on the record 9 flows out to the spindle 40 through the conductor 37. Reference numeral 41 denotes a partition plate installed between the rotating brush 10 and the static eliminating brush 20 on the bottom plate of the tip portion 1b, and the dust that has entered the main body case 1 due to the rotation of the rotating brush 10 is removed from the static eliminating brush 20 side. This prevents the static electricity from floating and adhering to the static elimination brush 20.

This device A is constructed as described above. When the spindle fitting opening 4 is inserted into the spindle 40 and the device A is set on the record disc 9, and the switch button 8 is pressed, the rotation of the motor 2 is controlled by the drive wheel 5. The driving wheel 5 rolls on the label surface of the record disc 9, and the device A rotates on the record disc 9 in the circumferential direction around the spindle 40. At the same time, the rotating brush 10 is also driven and rotated to clean dust adhering to the record disc 9. Further, the bristles 20b of the static eliminating brush 20 also rotate over the record 9 while being in contact with the sound parts of the record 9, and the electrical charge on the record 9 flows out to the spindle 40 through the conductor 37. The rotation of the motor 2 is also transmitted to the eccentric cam 28 via the bevel gears 31 and 30, and the cam 28 also rotates slowly. Since the cam 28 is in elastic contact with the outer circumferential surface of the cam 28, the static elimination brush 20 slowly reciprocates in its length direction, that is, in the radial direction of the record 9, due to the rotation of the cam 28. The tips of the bristles 20b come into contact with the entire surface of the record 9, and the charge on the entire surface of the record 9 is removed. Note that the static eliminating brush 20 is arranged so that the brush bristles 20b planted at a constant pitch t are in contact with the entire surface of the record 9.
The moving distance T of the reciprocating movement is set to be approximately the same as the pitch t or slightly larger than the pitch t.
By rotating the static eliminating brush 20 on the record 9 while reciprocating in the radial direction of the record 9 in this way, static electricity is removed from the entire surface of the record 9, and the brush 20 rotates on the record 9. Along with this, dust accumulated on the tips of the brush bristles 20b also spills from the pitch t when the brush bristles 20b reciprocate and is cleaned and removed by the rotating brush 10.

The present invention can be modified in various ways in addition to the above-mentioned embodiments. For example, the main case equipped with the static eliminating brush may be kept stationary, and the record side may be rotated by a built-in drive source. Alternatively, as shown in FIG. 6, an opening/closing plate 51 attached to the rear wall of the main body case 50 so as to be freely openable and closable is rotatably pivoted to a spindle 40 on a turntable 39, and the static elimination brush 20 is attached to the record disc 9. The present invention can also be applied to a hand-held static eliminator in which static electricity is removed from the record 9 while the main body case 50 is brought into contact with a sound part and rotated over the record 9 by manual operation.

As explained above, in the present invention, the brush bristles 20b
A static elimination brush 20 and a motor 2, which are formed by planting them at a predetermined pitch t, are built into the main body case 1, and the brush bristles 20b of the static elimination brush 20 are exposed from the bottom of the main body case 1, and a record disc is produced. 9 along the radial direction, and the spindle 40
A static eliminator A for record discs is configured to remove static electricity from the record disc 9 while rotating the record disc 9 in the circumferential direction of the record disc 9 relative to the record disc 9, the static eliminator being Since the brush 20 is driven by the motor 2 to reciprocate in the radial direction of the record 9, the entire surface of the record 9 can be uniformly neutralized.

[Brief explanation of drawings]

The figure shows an embodiment of the present invention.
The figure is a perspective view of the static eliminator, FIG. 2 is a plan view, FIG. 3 is a bottom view, FIGS. 4 and 5 are a front view and a side view of main parts in use, and FIG. FIG. 7 is a side view of the embodiment, FIG. 7 is a perspective view of the conventional one, and FIG. 8 is a side view of the conventional static eliminator in use. A... Static eliminator, 1,50... Main body case, 2
... Motor, 9 ... Record disc, 20 ... Static elimination brush, 20b ... Brush bristles, 40 ... Spindle, t ... Pitch of brush bristles.

Claims (1)

[Scope of utility model registration request] A static elimination brush 20 formed by planting brush bristles 20b at a predetermined pitch t and a motor 2 are built into the main body case 1, and the brush bristles 20b of the static neutralization brush 20 are exposed from the bottom surface of the main body case 1. Let me,
For record discs, static electricity is removed from the record disc 9 by bringing it into contact with the sound part of the record disc 9 along the radial direction and rotating it relative to the record disc 9 around a spindle 40. This static eliminator A is a static eliminator for record discs in which the static eliminator brush 20 is driven by the motor 2 to reciprocate in the radial direction of the record disc 9.