JPS6029043Y2 - Self-propelled record cleaner - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a self-propelled record cleaner that is pivotally connected to the spindle of a turntable and runs over the record around the spindle.

With conventional record cleaners, you have to hold the record with one hand, which can leave marks on the record or cause the record to accidentally slide off and damage it. Since the entire circumference is wiped while changing the position, uneven wiping is likely to occur.

For this reason, the inner end of the cleaner body is already rotatably pivoted to the spindle of the turntable of the record player, and while the record is running around the spindle,
A cleaner has been proposed in which dust on a record is removed using a roll brush exposed from the bottom wall of the cleaner body.

By the way, the roll brush that spans the radial direction of the record has a constant rotation speed and moves in the circumferential direction of the record around the spindle. Many of the sound grooves on the record are printed at the same point.

This means that the inner end of the roll brush is slipping on the record, and the tip of the bristle is likely to wear and shake.

For this reason, not only is it impossible to effectively scrape out dust adhering to the inner bottom of the sound groove, but the cleaning function is also rapidly lost.

Therefore, this invention attempts to eliminate the above-mentioned drawbacks by setting the amount of protrusion of the roll brush to gradually increase from the inner end to the outer end in the axial direction.

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

In FIGS. 1 and 2, 1 is a long box-shaped cleaner body made of synthetic resin, etc., and the inner end 1 of this cleaner body 1 is
A shaft hole 4, which is pivotally attached to a spindle 3 of the turntable 2, is formed in the lower surface of the turntable a.

5 is a driving wheel for traveling, 6, 6 is a slave shaft, and the above-mentioned shaft hole 4 is located at the intersection of the axes of the slave shafts 6, 6, thereby preventing lateral displacement of the slave shafts 6, 6 during traveling. are doing.

7 is a battery housed in the cleaner body 1; 8 is a motor driven by the battery 7; the rotational force of this motor 8 is transmitted to the roll brush 11 via a first reduction mechanism 9 and a universal joint 10; There is.

The roll brush 11 is rotatably supported within the cleaner body 1, and its lower end, that is, a part of its outer periphery, is connected to an opening 1 formed in the bottom wall 1b of the cleaner body 1.
2 (FIG. 3) so that it is slightly exposed.

13 is a second speed reduction mechanism, and the rotational force of the motor 8 is also transmitted to the driving wheels 5 via this speed reduction mechanism 13.

A bearing 14 supports the inner end 15a of the rotating shaft 15 of the roll brush 11, and is formed in a pivot shape so that the rotating shaft 15 can swing.

Reference numeral 16 denotes a bearing that supports the outer end 15b of the rotating shaft 15, and as shown in FIG. Each tip of the upper elastic piece 19.19 is brought into contact with the inner surface of the top wall 1c of the cleaner body 1, and the lower elastic piece 20.20 is formed on the lower surface of the cleaner body 1. Each tip of the rotary shaft 15 contacts the inner surface of the bottom wall 1b of the cleaner main body 1, thereby elastically supporting the outer end 15b of the rotating shaft 15 so as to be movable up and down.

Further, by setting the elasticity of the upper elastic piece 19 to be larger than the elasticity of the lower elastic piece 20, the amount of protrusion t of the roll brush 11 relative to the bottom wall 1b of the cleaner main body 1 is
increases from the inner end to the outer end in the axial direction.

21 is a guide body that guides the vertical movement of the bearing 16;
2 is a power switch.

First, turn on the power switch 22 to start the motor 8, and connect the shaft hole 4 of the cleaner body 1 to the turntable 2.
The cleaner body 1 is inserted into the spindle 3 of the fourth
When placed on the record M as shown in the figure, the cleaner body 1 moves in the circumferential direction of the record M around the spindle 3 by the driving wheels 5 receiving the rotational force of the motor 8, and as a result, Since the roll brush 11 also rotates, dust on the record M is removed.

Here, since the protrusion amount t of the roll brush 11 with respect to the bottom wall 1b of the cleaner main body 1 is set to increase from the inner end to the outer end, the roll brush 11 becomes larger from the inner end to the outer end. The contact surface with the top of the record M (the area marked by diagonal lines S in FIG. 4) gradually increases.

Therefore, when the cleaner main body 1 is running at a constant speed, the roll brush 11 rubs the record M over the entire axial direction for a uniform time.

Therefore, the tip of each bristle of the roll brush 11 is not locally worn or shaken, and the dust adhering to the inner bottom of the sound groove of the record M can be thoroughly wiped out, and the cleaning action can be maintained for a long time. be done.

Note that the bearing 16 of the roll brush 11 is not limited to the base body 18 and the elastic pieces 19, 20, but may be configured such that the base body 18 is pressed by a coil spring or the like.

As described above, in this invention, the amount of protrusion of the roll brush protruding from the bottom wall of the cleaner main body is gradually increased from the inner end to the outer end in the axial direction. The sliding contact between the roll brush and the record disc during traveling becomes smooth, and the cleaning effect and durability of the roll brush can be improved.

[Brief explanation of drawings]

Fig. 1 is a plan view showing an example of the self-propelled record cleaner according to this invention, Fig. 2 is a partially cutaway side view of the same, Fig. 3 is an exploded perspective view of the main parts, and Fig. 4 is an explanatory view of the same operation. It is. 1...Cleaner body, 1b...Bottom wall,
2...Turntable, 3...Spindle, 4...Shaft hole, 11...Roll brush, M...Record, t ...Protrusion amount.

Claims (1)

[Scope of utility model registration request] The turntable 2 is inserted into the shaft hole 4 formed in the cleaner body 1.
A spindle 3 is pivotally mounted, and a roll brush 11 whose outer periphery is partially exposed from the bottom wall 1b of the cleaner body 1 moves on the record M while moving around the spindle 3. A self-propelled record cleaner for removing dust, the cleaner body 1 of the roll brush 11
A self-propelled record cleaner in which the amount of protrusion t relative to the bottom wall 1b of the record cleaner gradually increases toward the inner end in the axial direction.