JPS587457Y2 - Pick-up cleaner device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a pickup cleaner device such as a video signal reproducing device.

The television signal is FM-modulated, the FM signal is recorded on a rotating recording medium (disc) using an appropriate method, and the playback side detects the recorded FM signal and performs FM demodulation to perform normal television reception. A video signal reproducing device that reproduces that image is being considered.

In this device, it is necessary to keep the needle that traces the upper surface of the disk in a clean state at all times, and if there are any lumps or the like attached thereto, there is a risk of signal loss or damage to the needle.

The present invention has been developed to address the above-mentioned circumstances, and aims to provide a pickup cleaner device that can clean the pickup such as the needle, prevent accidents, and provide stable signal detection. It is something.

Embodiments of the present invention will be described in detail below with reference to FIGS. 1 to 6.

To explain the appearance of the video signal reproducing apparatus in FIG. 1, this apparatus 11 has a disk 12 placed on a turntable and is rotated. The amplifier device is designed to trace.

The pickup device is provided on the lower abdomen of an arm device 13 that is movable in parallel on the surface of the disk 12 in the radial direction thereof.

The arm device 13 is subjected to positional movement control by a carriage device provided in the playback device, and there are a standby position A, a play start position B, a play completion position C, etc. on the way of the movement.

Next, referring to FIG. 2, the arm device 13 will be explained. This device has a pick-up needle 14 protruding from its lower abdomen.

This needle 14 is provided at the tip of a so-called cantilever 15, and when the arm device 13 reaches the play start position A, it is pushed down by the upper and lower rock structures of the needle so that it fully contacts the disk 12.

One end of the arm device 13 is attached to a carriage device 16 provided in the playback device, and as mentioned earlier, this carriage device moves the arm device 13 from the standby position to the play start position to the play completion position. Control movement to position, etc.

Therefore, the carriage body 17 is supported by the guide rail 18, and is oriented in one predetermined direction (arrow I-+0 in FIG. 1).
75 directions).

The carriage device 16 is driven by, for example, an electromagnetic clutch provided in its main body that pinches a conveyor belt.

Therefore, the arm device 13 is translated in parallel on the board of the playback device at appropriate intervals.

In this case, a needle cleaning means is provided on the upper board of the reproducing device.

This means is provided, for example, between the play start position B and the standby position A shown in FIG. 1, and has a configuration as shown in FIG. 3.

That is, 20 is a disk-shaped rotating body disposed on the upper surface of the board, and is rotatably attached to a shaft 21VC.

Further, a cleaning tool 22 is coaxially provided at the tip of the shaft 21.

This cleaning tool 22 is, for example, ring-shaped, and the rotating surface of the force is a brush-like surface 22. (See Figure 3) K is formed.

A toothed surface 201 is formed on the upper surface of the sprouted rotating body 20.

Toothed surface 20 of this rotating body 20. For arm device 1
The drive member 23 provided at 3 is made to correspond.

This driving member 23 is formed with a toothed surface 231 that meshes with the toothed surface 20 □, and its protrusion length l is also set so that it can rotationally drive the rotating body 20 when the arm device 13 reciprocates. ing.

Also, the height of the cleaning tool 22 is 3 m, and the arm device 130 has 14 needles.
It is set so that you can touch it.

Therefore, when the arm device passes over the needle cleaning means, its driving member 23 rotates the rotating body 20, and the cleaning tool 22 also rotates together with this.

Therefore, the needle 14 is cleaned at this time. The present invention is not limited to the embodiments described above, but may be constructed as shown in FIG.

That is, an L-shaped rod-shaped drive member 24 is fixed to the tip of the arm device 13.

- A rotating body 26 is rotatably supported on the cover, and a locking member 25 driven by the driving member 24 is provided.

Further, the rotating body 26 has a circumference shaped like a gear, and is meshed with another gear 27.

This gear 27 has a brush housing cleaning tool 28 protruding in its axial direction, and its position corresponds to the tip of the needle 14.

Therefore, when the arm device 13 reciprocates and passes over the cleaning means, the gear 27 rotates via the rotating body 26, and the needle 14 is cleaned.

Furthermore, the present invention is not limited to the above-mentioned embodiment, but may also be implemented as shown in FIG.

That is, 30 is caused by the reciprocating movement of the arm device 13.
It is a rotating body that rolls in the direction of the moving force, and a brush-like cleaning tool 32 and a locking piece 31 are integrally formed at an appropriate rotation angle position of this rotating body 30.

When the driving piece 33 provided on the arm device 13 collides with the locking piece 31, the rotating body 30 rotates and the cleaning tool 32 cleans the needle 14.

Note that 34 is a spring that applies a biasing force to the rotating body 30.

The present invention may be constructed as shown in FIG.

That is, 35 is a rod-shaped cleaning tool that is appropriately bent.
It has a brush portion 351 on one end side.

The other end is bent at a position where it can be engaged with the drive piece 24 of the arm device 13, and has a bent portion 35□.

The center thereof is rotatably attached to the board of the playback device by a shaft 36.

It is tensioned by springs 37 and 38 so that it is always elastically held in a fixed position.

Therefore, when the drive piece 24 is locked to the bent portion 35□,
The cleaning tool 35 rotates and its brush portion 35□ can clean the needle 14 of the arm device.

As explained above, according to the present invention, when the arm device comes from the standby position A to the play start position B, or conversely when it returns from the play start position B to the standby position A, the arm device itself becomes the needle cleaning means. to clean the needle.

Therefore, the needle is always kept clean, and when tracing the disk, no signal dropout occurs due to stiffness or the like.

Accidents such as buds, discs being scratched, and needles being damaged are also prevented.

In this way, the present invention can clean the pickup of needles etc.
It is possible to provide a pick-up sensor device that can prevent accidents and provide stable signal detection.

[Brief explanation of drawings]

Fig. 1 is an external perspective view of the video signal reproducing device, Fig. 2 is a partially cutaway perspective view of the arm device, and Fig. 3a is a perspective view showing an embodiment of the pickup cleaner device of the present invention. 4 is a perspective view showing another embodiment of the device of the present invention, and FIG. 5 is a perspective view of still another embodiment of the device of the present invention. 6 is a perspective view of the arm device, FIG. 6 is an explanatory view of the operation, and FIG. 13...Arm device Fli'', i4...
...Needle, 16...Carriage device, 2o...
...Rotating body, 22. Bending/cleaning tool, 23..... Drive member.

Claims (1)

[Scope of utility model registration request] an arm device that reciprocates from a standby position to the top surface of the turntable; a drive member that protrudes from the arm device; and a rotating body that is moved by contact with the drive member and is provided on the periphery of the turntable. A pickup cleaner device comprising: a cleaning unit whose cleaning unit is rotationally driven by rotation of the rotating body.