JPS6128247Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a self-propelled record cleaner that is pivotally attached to the spindle of a turntable and moves around the spindle on the surface of the record while collecting dust on the record. It is.

This type of self-propelled record cleaner has a main body case that attaches to the spindle of the turntable and runs on the record surface around the spindle, and a roll brush for scraping up dust, and the outer circumference of the roll brush. The application is filed for a device comprising a dust collection chamber that accommodates dust that is swept up by the dust collector and carried into the main body case by the rotating air current generated at this time, and a drive device that runs the main body case and rotates the roll brush. People have already suggested it.

However, in the structure described above, in order to reliably collect the dust that has been scraped up into the main body case, it is necessary to form the bottom surface of the main body case and the record surface as close as possible. This is because the roll brush itself is flexible and it is difficult to obtain strong suction power.

However, this approach is in conflict with the amount of air, and as the amount of air introduced from the bottom of the main body case in the direction of travel decreases, the rotating airflow generated by the rotation of the roll brush becomes negative pressure, preventing sufficient suction of dust and reducing cleaning efficiency.

This idea was made in order to eliminate the above-mentioned drawbacks, and by forming the bottom surface of the main body case located forward of the roll brush in the running direction into a tapered shape with an upward slope toward the side surface of the main body case in the running direction. This is intended to improve cleaning efficiency by ensuring sufficient air is introduced between the bottom surface of the main body case and the record surface.

Examples of this invention will be described below with reference to the drawings.

Figure 1 is an overall cross-sectional view of the self-propelled record cleaner set on the record surface R. In the figure, 1 is an elongated main body case made of synthetic resin; Source chamber 2 is formed,
On the other side, the dust collection chamber 3 is arranged in the axial direction of the main body case 1, so that the drive source chamber 2 and the dust collection chamber 3 are arranged in parallel in a horizontal position.

As shown in FIG. 2, the drive source chamber 2 of the main body case 1 houses drive sources such as a motor 4 and a battery 5, and the dust collection chamber 3 houses a roll brush 6. This roll brush 6 is supported with its outer peripheral portion protruding from the bottom surface of the main body case 1. 7 is a driving pulley fixed to the rotating shaft 8 of the motor 4, and 9 is a reduction pulley fixed to the transmission shaft 10. Between the driving pulley 7 and the reduction pulley 9, there is a belt 1
1 is hung to form the first reduction section, and the rotation speed of the motor 4 is approximately 5000rpm.
The speed is reduced to about 3000r.pm. A rubber belt 12 is attached to this transmission shaft 10, and this belt 1
The other one of the two is stretched over a geared pulley 15 that is cantilevered by a shaft 14 on the upper left side of the gear chassis 13. The gear portion 15a of this pulley 15 is always in mesh with the gear portion 16a of the drive wheel 16 which is rotatably inserted and supported by the transmission shaft 10, and is therefore decelerated to 3000 rpm by the first deceleration portion. The rotation speed of the transmission shaft 10 is determined by the rotation speed of the transmission shaft 10 from the belt 12 through the geared pulley 15 to the gear portion 15a and the gear portion 16a.
Since the gear portion 16a has a sufficiently larger diameter than the gear portion 15a, the drive wheel 16 has a rotation speed of about 200 to 300 r.
The speed will be reduced to pm.

This drive wheel 16 is made of polyacetal resin, and protrudes from the bottom of the main body case 1 by about 1 to 2 mm, and is provided with a urethane rubber band 16b so that it can rotate reliably on the record surface without making noise or damaging it. is attached. Of course, this band 16b may be fitted into a groove provided in the drive wheel 16 by utilizing its own elasticity. Further, the surface of the band 16b is provided with a slit pattern or has a finely uneven surface.

A cylindrical clutch 1 is attached to the other end of the transmission shaft 10.
7 is attached to the clutch 17, and a disk plate 18 is press-fitted onto the outer surface of the distal end of the clutch 17.

The drive source configured in this way has screws 19, 19 inserted into the drive source chamber 2 through screw holes 2 of the gear chassis 13.
0, 20, and the protruding window 21 of the partition wall 1a between the drive source chamber 2 and the dust collection chamber 3.
The clutch 17 is made to protrude from the top.

Rotating pieces 22 having the same shape on both sides of the roll brush 6 are attached to a brush shaft 23, one end is fitted into the clutch 17, and the other end is connected to a bearing piece 24 at the outer end of the main body case 1. The roll brush 6 is thus positioned in the dust collection chamber 3.

Figure 3 shows the bottom side of the main case 1.
25 is record player turntable T
By inserting the spindle M into the guide hole 25 (FIG. 1), the main body case 1 is inserted into the guide hole 25.
By the driving force of the drive wheels 16 in the direction of arrow P, the disc rotates in the direction of arrow Q on the record surface.

At this time, in order to ensure stable running of the main body case 1, an auxiliary wheel 26 having a rotation locus on a dashed line L centered on the guide hole 25 is provided at a substantially symmetrical position.

Therefore, according to this record cleaner, as shown in FIG. 4, the main case 1 advances by itself in the direction of the arrow Q on the record surface R, and the roll brush 6 rotates at high speed in the direction of the arrow S, thereby cleaning the record surface R. The tip of the brush scrapes up dirt, dust, etc. on the top, and the rotating airflow I generated at this time carries the dust to the dust room 27, and the filter 28 installed in the dust room 27 separates the dust from the airflow. It can collect dust, etc. However, in order to reliably collect the dust scraped up by the roll brush 6 into the main case 1 without scattering it around, the record surface R and the bottom of the main case 1 must be brought as close as possible. For this reason, the air required to generate the rotating airflow I is not sufficiently introduced, and a negative pressure is created between the record surface R and the bottom surface 1a of the main case 1, resulting in a decrease in cleaning efficiency. Ta.

Therefore, in this device, the bottom surface 1a of the main body case 1, which is located forward of the roll brush 6 in the traveling direction, is formed in an upwardly sloping arc shape toward the side surface 1b of the main body case 1 in the traveling direction.
Even when the bottom surface 1a of the main case 1 is brought close to the surface of the record, the bottom surface 1a of the main case 1 flares out toward the edge in the direction of travel, so that as the record cleaner travels in the Q direction, the air needed to generate a rotating air current can be actively introduced, and the dust picked up by the roll brush 6 can be smoothly introduced into the main case 1, allowing for efficient cleaning.

In this embodiment, the bottom surface 1a of the main body case 1 on the running direction side is formed into an arcuate shape with an upward slope toward the running direction side side surface 1b of the main body case 1, but the present invention is not limited to this. For example, As shown in FIG. 6, the bottom surface 1a on the running direction side of the main body case 1 may be sloped upward toward the running direction side side surface 1b of the main body case 1, in short, the bottom surface of the main body case 1 and the record Any tapered shape may be used as long as the distance from the board surface R increases toward the bottom edge of the main case in the running direction.

Furthermore, the rotating airflow I generated by the rotation of the roll brush 6 cannot be sufficiently discharged from the dust collection chamber 3 to the outside of the main body case 1 due to the presence of the filter 28.
For this reason, the dust and the like try to enter the drive source chamber 2 side through the protruding window 21 that connects the roll brush 6 and the clutch 17, and the intruded dust gets caught in the gear parts 15a and 16a, reducing the contact ability of the switch part, etc. There is a risk that failure may occur.

Therefore, a disk plate 18 that covers the protruding window 21 and rotates at high speed like the roll brush 6
By providing radial ribs 18a on the disk plate 18 as shown in FIG.
An auxiliary air flow can be generated from the drive source chamber 2 side to the dust collection chamber 3 side, thereby creating an air curtain effect around the protruding window 21 to prevent dust from entering. It is composed of

Of course, the means for generating the above-mentioned auxiliary airflow is not limited to the shape of the disk plate 18, but may be in the shape of a propeller, as long as it can provide a fan effect. Further, it is also possible to arrange the fan rib not on the dust collection chamber 3 side but in the vicinity of the protruding window 21 within the drive source chamber 2 side, and in this case, the rib for the fan may be arranged in the opposite direction. Further, the fan like this disk plate may be provided not only on the transmission shaft 10 side but also on the roll brush 6.

In this case, in order to prevent dust from entering the drive source chamber 2 side, as shown in FIG. When the roll brush 6 rotates in the rotation direction S, dust is actively pushed outward G, preventing the dust from entering the drive source chamber 2. It reduces opportunities.

As described above, according to this invention, the main case, which is attached to the spindle of the turntable and runs over the record around the spindle, includes a roll brush for scraping up dust, and a roll brush for removing dust. In a self-propelled record cleaner equipped with a dust collection chamber for storing dust scraped up by the outer circumferential portion, and a drive device that runs the main body case and rotates the roll brush, the roller brush is located at the front side of the roll brush in the running direction. The bottom surface of the main case is tapered upward toward the side surface of the main case in the running direction, so when using the cleaner, the air necessary for generating rotating airflow is actively generated between the bottom of the main case and the record surface. It is possible to introduce the system to improve cleaning efficiency.

[Brief explanation of the drawing]

FIG. 1 is a vertical cross-sectional view in the longitudinal direction of an embodiment of this invention, FIG. 2 is an exploded perspective view of the drive source of the same embodiment, and FIG.
The figure is a bottom view of the same example, and Figure 4 is the first view of the same example.
5 is a bottom perspective view of the same embodiment, and FIG. 6 is a sectional view of a main part of another embodiment of the present invention. 1...Body case, 1a...Bottom surface, 1b...Side surface in the running direction, 4...Motor, 6...Roll brush, R...Record, M...Spindle, T...
…Turntable.

Claims (1)

[Scope of utility model registration request] It is attached to the spindle M of the turntable T,
The main body case 1, which runs on the record R around this spindle, includes a roll brush 6 for scraping up dust, a dust collection chamber 27 for storing the dust scraped up by the outer periphery of the roll brush 6, and the main body. In a self-propelled record cleaner equipped with a drive device 4 that runs the case 1 and rotates the roll brush 6, the bottom surface 1a of the main case 1 located on the front side in the running direction from the roll brush 6 is connected to the main case 1. A self-propelled record cleaner characterized in that the record cleaner is formed into a tapered shape with an upward slope toward the side surface 1b on the running direction side.