JPH0110726Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a self-propelled record cleaner that collects dust attached to a record while rotating circumferentially over the record. It is characterized by a means for eliminating static electricity.

[Conventional technology]

The conventional technology related to this type of record cleaner will be explained with reference to the accompanying drawings. A main body case 6 is provided with a drive wheel 11 and a cleaning roll brush 12 which are rotated by a motor 7, and a cleaning roll brush 12 is provided in the center of the record cleaner 3. A self-propelled record cleaner that self-propelled and rotates on a record disc 3 around a spindle 2 protruding from a hole 4 is known from Japanese Utility Model Application Publication No. 56-9508.

In addition, in a hand-cranked record cleaner,
In order to prevent the record from being charged with static electricity due to rolling brushes coming into sliding contact with the record, reducing the ability to remove dust, it was proposed in Utility Model Application Publication No. 52-50707 to provide a means for eliminating static electricity. It is publicly known in Japanese Patent Application No. No. 2003-120013 and Japanese Patent No. 56-9511.

[Problem that the invention attempts to solve]

In the above-mentioned hand-cranked type, the main body case is held in the hand and the entire record cleaner is rotated over the record, so that static electricity on the record surface can be discharged to the human body.

However, in the self-propelled record cleaner to which the present invention is directed, the user does not directly hold the main case.
Therefore, unlike the hand-cranked type, it is not possible to discharge the discharge to the human body, and the problem is where to discharge the discharge.

Therefore, in this invention, in a self-propelled record cleaner, it is possible to remove the dust attached to the record with a cleaning roll brush and at the same time discharge the static electricity charged on the record, thereby improving the dust removal function. The purpose is to

[Means to solve the problem]

That is, in the present invention, a main body case 6 is equipped with a motor 7, a driving wheel 11, and a cleaning roll brush 12, and the power of the motor 7 is used to move around the spindle 2 protruding from the center hole 4 of the record disc 3. In a self-propelled record cleaner that collects dust adhering to the record disc 3 with the roll brush 12 while self-propelled rotating in the direction, focusing on the presence of the spindle 2 that is the center of rotation, the record disc 3 is charged. The purpose is to discharge static electricity to the spindle 2.

Specifically, a conductive current collecting brush 16 that is in sliding contact with the record 3 is provided in the main body case 6 in parallel with the roll brush 12, and this current collecting brush 16 and the spindle 2 are connected by a conductive member 18. Features.

[Effect]

During the cleaning operation in which the record cleaner of the present invention rotates around the spindle 2, static electricity is charged on the record surface due to friction with the cleaning roll brush 12. However, the static electricity charged on the record 3 is discharged through the current collecting brush 16, the conductive member 18, and the spindle 2.

[Effect of idea]

Therefore, although it is a self-propelled record cleaner in which the main body case 6 is not held by hand, the present invention removes dust adhering to the record disc 3 with the cleaning roll brush 12, and at the same time removes the dust attached to the record disc 3 by charging the record disc 3. Since static electricity can be discharged to the spindle 2 by the current collecting brush 16 and the conductive member 18 on the main body case 6 side, dust can be removed extremely effectively. Moreover, since one end 18a of the conductive member 18 comes into contact with the spindle 2 at the center of rotation,
The frictional resistance between the two, as well as the turning resistance, can be made as small as possible, which has the advantage of ensuring that the static electricity eliminating function can be used repeatedly over a long period of time.

〔Example〕

Hereinafter, embodiments of the present invention will be described based on the drawings.

In the drawing, 1 is a turntable of a record player, 2 is a spindle protruding upward from the turntable 1, and 3 is a record placed on the turntable 1, with the spindle 2 protruding from a central hole 4. There is.

5 is a record cleaner, this is record 3
A motor 7 powered by a battery (not shown) and a speed reduction mechanism 8 comprising a group of gears are built into the base end of a main body case 6 made of synthetic resin and formed into an elongated box shape along the radial direction. , and a boss 10 having a spindle insertion hole 9 into which the spindle 2 is inserted is provided on the case bottom wall 6a in the base end thereof, and a boss 10 is provided to protrude upward from the case bottom wall 6a, and a drive wheel 11 is provided on the case tip side than the spindle insertion hole 9. It is arranged to protrude slightly downward from the bottom wall 6a. Further, a cleaning roll brush 12 is housed inside the main body case 6 on the distal side from the base end so as to protrude slightly downward from the case bottom wall 6a. The drive wheel 11 is rotated at a reduced speed by a motor 7 via the speed reduction mechanism 8, and the cleaning roll brush 12 is rotated at high speed by the same motor 7 in the opposite direction to the rotation direction of the drive wheel 11.

A long and narrow brush mounting hole 13 is opened in the case bottom wall 6a on the tip side of the main body case 6 and is arranged approximately parallel to the cleaning roll brush 12. A current collecting brush 1 comprising conductive bristles 15 made of carbon fiber or stainless steel wire planted on a base 14.
The hair transplanting stand 14 part 6 is removably fitted. At this time, a small protrusion 19 is provided on the side of the brush mounting hole 13 so that the fitted state of the current collecting brush 16 is reliably maintained.
A recess 19a that can be freely engaged with and disengaged from the protrusion 19 is provided at both ends of the recess 19a. The current collecting brush 16 is connected to the bottom wall 6 of the case.
Cleaning roll brush 1 from tip of brush bristles 15
It is made to protrude so that it is substantially flush with the tip of 2. A protrusion 17 protrudes between the boss 10 and the end of the brush mounting hole 13 in the main body case 6.
A conductive member 18 made of a spring wire or the like is wound and held around the conductive member 18, and one end 18a of the conductive member 18 bent in an arc shape is inserted into the upper end opening of the boss 10 and brought into pressure contact with the tip of the spindle 2. The other end 18b bent in an arc shape extends above the brush mounting hole 13 and is brought into pressure contact with the upper surface of the bristle-planting stand 14 of the current collecting brush 16.

The record cleaner 5 configured in this way is
The spindle 2 is inserted into the spindle insertion hole 9 and placed on the record 3. When the power switch (not shown) on the main body case 6 is turned on, the drive wheel 11 and the cleaning roll brush 12 slide against the record 3. Rotates tangentially. Due to the sliding rotation of the driving wheel 11, the record cleaner 5 rotates over the record disc 3 around the spindle 2, while cleaning the roll brush 1.
Step 2 collects dust on the record 3. At the same time, the static electricity charged on the record 3 is removed from the conductive member 18 and the spindle 2 by the collector brush 16.
It is discharged and neutralized through the process.

At this time, as shown in FIG.
When the record cleaner 5 is rotated in the direction of arrow A so that the cleaning roller brush 12 precedes the cleaning roll brush 12, the dust adhering to the record 3 due to the action of static electricity is first discharged by the current collecting brush 16. They simply adhere to each other and are easily removed and cleaned by the cleaning roll brush 12, but on the other hand, as shown in FIG. 4, the cleaning roll brush 12 precedes the current collector brush 16. When the record cleaner 5 is turned in the direction of arrow A,
Dust, especially cotton dust, on the record disc 3 is first removed by the cleaning roll brush 12, so that it does not adhere to the tip of the current collecting brush 16, and therefore the current collecting brush 16 can increase the discharge effect. In addition, static electricity generated on the record 3 due to friction with the cleaning roll brush 12 is transferred to the collector brush 1.
6, and the dust that has been attracted by static electricity is simply adhered by the discharge of the current collecting brush 16, and is easily removed by the cleaning roll brush 12 which rotates again.
It can be said that the latter shown in FIG. 4 is more practical than the former shown in FIG.

Further, since one end 18a of the conductive member 18 is brought into contact with the spindle 2, which is the center of rotation of the record cleaner 5, there is no problem with the rotation of the record cleaner 5, and the one end 18a is less likely to wear due to friction with the spindle 2. In particular, when the one end 18a is brought into point contact with the tip of the spindle 2 as shown in the figure, the effect of reducing wear and frictional resistance is remarkable.

If the current collecting brush 16 is worn out due to sliding contact with the record 3, remove it from the brush mounting hole 13 and replace it with a new current collecting brush 16, or
Alternatively, a plurality of engagement/disengagement recesses 19a may be provided at both ends of the bristle implantation table 14, and the engagement position with the main body case side protrusion 19 may be changed or adjusted depending on the amount of wear. It should be noted that the recess 19a and the projection 19 can be arranged in opposite positions on the bristle transplanting table 14 and the main body case 6, and furthermore, the recess 19a and the projection 19 can be connected to each other in a well-known manner. A detachable structure can be adopted.

[Brief explanation of drawings]

Figure 1 shows the record cleaner according to this invention,
FIG. 2 is a perspective view showing the current collecting brush attached to the device, and FIG. 2 is a sectional view showing the state of use. FIG. 3 is a plan view showing an example of a usage state, and FIG. 4 is a plan view showing another example. 1...Turntable, 2...Spindle, 3
... Record disc, 4 ... Center hole, 5 ... Record cleaner, 6 ... Main body case, 9 ... Spindle insertion hole, 12 ... Roll brush for cleaning, 13 ...
Brush mounting hole, 16... Current collecting brush, 18... Conductive member.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A drive wheel 11 that is rotatably driven by a built-in motor 7 is arranged on the main body case 6 so as to face the bottom surface of the main body case 6. A cleaning roll brush 12 rotated by the motor 7 is provided facing the bottom surface of the main body case 6, and is fitted into a spindle 2 protruding from the center hole 4 of the record disc 3 at the base end of the main body case 6. The cleaning roll brush 1 has a spindle insertion hole 9 that rotates around the spindle 2 in the circumferential direction on the record 3.
In the self-propelled record cleaner configured to collect dust adhering to the record disc 3 in step 2, a conductive current collecting brush 16 that is in sliding contact with the record disc 3 is attached to the main body case 6 at the cleaning roll brush 12. A record cleaner characterized in that the collector brushes 16 and the spindle 2 are arranged side by side in the rotating direction, and the current collecting brushes 16 and the spindle 2 are connected by a conductive member 18. (2) The current collector brush 16 is the cleaning roll brush 12
The record cleaner according to claim 1, which is arranged on the leading side with respect to the turning direction of the record cleaner. (3) The current collector brush 16 is the cleaning roll brush 12
The record cleaner according to claim 1, which is arranged on the trailing side with respect to the turning direction of the record cleaner. (4) The record cleaner according to any one of claims 1 to 3, in which the conductive member 18 makes point contact with the tip of the spindle 2. (5) Utility model registration claim 1 in which the current collecting brush 16 is detachably attached to the main body case 6
The record cleaner according to any one of Items 1 to 4.