JPH0114966Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a stylus cleaner for cleaning a record stylus. In this stylus cleaner, the actuating part is divided into two parts, and the actuating part is raised and lowered according to the height of the record stylus. The stylus cleaner is designed to allow slight movement in the direction and to move the center of gravity of the operating part to ensure the stability of the stylus cleaner.

(Prior Art) The height of the record needle attached to the tip of the tone arm varies depending on the model of the record player. For this reason, the main body of the stylus cleaner is divided into a base part that is placed on a table such as a turntable, and an operating part equipped with a cleaning brush, and the operating part is raised and lowered according to the height of the record stylus. What has been done is known. FIG. 5 shows a conventional stylus cleaner of this kind, in which a pinion 2 disposed at the tip of a base section 1 is engaged with a rack 4 protruding from the rear end surface of an operating section 3, and a handle is provided. The actuating part 3 is raised and lowered by the rotation operation of 5.

(Problem to be solved by the invention) However, in this device, since the operating section 3 is designed to move up and down in the vertical direction, the amount of elevation of the operating section 3 due to the rotation of the handle 5 is large. It has been difficult to finely adjust the height of the cleaning brush 6 so that it can be inserted into the cleaning brush to the optimum depth. In addition, since the lifting direction of the operating section 3 is vertical, the balance of the center of gravity is unstable and it tends to wobble, and especially when the operating section 3 is raised and the record stylus is inserted into the cleaning brush, the stylus cleaner tends to tilt forward. There was a problem.

Therefore, an object of the present invention is to provide a stylus cleaner that allows fine adjustment of the height of the cleaning brush and has a well-balanced center of gravity.

(Means for solving the problem) For this purpose, the present invention provides a base section 8 to be placed on a table.
The main body is divided into two parts: an electromagnet 20 and an operating part 9, which includes an electromagnet 20 and a cleaning brush 11 that vibrates by being driven by the electromagnet 20, and is mounted on the front part of the base part 8 so as to be able to rise and fall. And the base 8
An inclined part a having a downward slope toward the front is provided at the front part of the actuating part 9, and this inclined part a is provided at the rear part of the actuating part 9.
By providing a slide portion b that slides along the operating portion 9, the actuating portion 9 is mounted on the base portion 8 so as to be freely movable up and down in diagonal directions.

(Function) According to the above structure, the actuating part 9 moves up and down in the diagonal direction along the inclined part a of the base part 8, so it is easy to finely adjust the height of the cleaning brush 11, and the inclination of the inclined part a By making the direction slope downward toward the front, the more the actuating part 9 rises along the inclined part a, the more the center of gravity G of the actuating part 9 moves toward the base part 8, and the lower the actuating part 9 moves toward the base part 8. It is strongly supported.

(Example) Hereinafter, an example of the present invention will be explained along with the drawings.

FIG. 1 is a perspective view of the stylus cleaner 7 in use, and the main body of the stylus cleaner 7 includes a base portion 8 placed on a table such as a turntable, and an actuating portion 9 supported by the base portion 8. A record stylus 13 attached to the tip of a tone arm 12 is inserted into a cleaning brush 11 disposed on a protruding piece 10 projecting forward of the operating part 9 to perform cleaning. A recessed portion 14 is formed in both side walls near the tip of the base portion 3, and a rotary operation portion 15 for raising and lowering the operating portion 9 slightly protrudes into the recessed portion 14. Reference numeral 16 denotes a push-type switch section provided on the upper surface of the base section 8.

As shown in FIG.
7. A switch body 18 and a wiring board 19 are installed inside. The actuating unit 9 also includes an electromagnet 20 connected to a wiring board 19, and a diaphragm 22 made of a spring material that holds a cleaning brush 11 and a permanent magnet 21 at both front and rear ends, which are attached to a chassis 23 and housed therein. , the electromagnet 20 and the permanent magnet 21
They are placed opposite each other with a slight gap between them. When the switch part 16 is pressed, the oscillation circuit of the wiring board 19 is operated, and the electromagnet 20 repeats excitation and demagnetization, and at the same time, the permanent magnet 21 vibrates up and down, and the cleaning brush 11 also vibrates up and down.

The front part of the base part 8 is a slope part a that slopes downward toward the front, that is, toward the operating part 9 (see FIG. 4). Further, the rear end surface of the actuating portion 9 has this inclined portion a.
It is a sliding part b that slides along the . Further, a receiving piece 24 (see FIG. 2) extending along the bottom surface of the actuating part 9 is projectingly provided on the base part 8, and the lowering limit of the actuating part 9 is defined by this receiving piece 24.

A threaded rod 25 is erected at the center of the rotary operation section 15, and the lower end of the threaded rod 25 is rotatably inserted into a bearing 26 on the inner surface of the receiving piece 24. Further, a U-shaped screw piece 27 extending into the base part 8 is provided at the rear of the actuating part 9, and a screw 27' formed on the inner peripheral surface of this screw piece 27 is engaged with the threaded rod 25. Yes (see Figure 3). 28 is a lamp for certifying the vicinity of the record needle 13.

This stylus cleaner 7 has the above-mentioned structure, and when adjusting the height of the cleaning brush 11 according to the height of the record stylus 13 attached to the tip of the tone arm 12, it is necessary to The wall is lightly held between the thumb and middle finger, and the operating portion 15 is rotated with the middle finger to rotate the screw rod 25 (see the chain line in FIG. 3). Then, the U-shaped screw piece 27 moves up and down along the threaded rod 25 while moving in the front-back direction, and the actuating part 9 moves up and down in the diagonal direction.
The screw 27' of the screw piece 27 rises obliquely toward the rear side of the base section 8 when the actuating section 9 ascends, and ascends obliquely toward the front side of the base section 8 when descending. It is formed so that it descends. Here, the vertical lifting amount H of the actuating part 9 is the value obtained by multiplying the diagonal movement amount L by the inclination angle Sinθ (see Fig. 4).
Since Sinθ<1, the amount of elevation H is smaller than the amount of movement L. That is, the lifting amount H of the actuating part 9 due to the rotational operation of the operating part 15 is small, and it is possible to move the actuating part 9 in the vertical direction. can be correctly inserted into the cleaning brush 11 to the optimum depth for cleaning.

In addition, in order to firmly support the operating part, the pitch of the screws and pinion racks formed on the members constituting the lifting device (in other words, in this stylus cleaner 7, the screws formed on the threaded rod 25 and the U-shaped threaded piece 27) It is better to increase the pitch (the pitch of the pinion 2 and rack 4 in the above-mentioned conventional device), but if the pitch is increased, the amount of elevation of the actuating section increases, making fine adjustment of the height difficult. However, if the actuating part 9 is moved in an oblique direction as in the present invention, even if the pitch is increased, the lifting amount H of the actuating part 9 can be
can be made sufficiently small, making it possible to finely adjust the height. Moreover, when the actuating part 9 is raised toward the rear side of the base part 8, the center of gravity G of the actuating part 9
Since the stylus cleaner 7 also moves toward the base 8 (see Fig. 4), the actuating unit 9 is firmly supported by the base 8 from below and the center of gravity is well balanced, preventing the stylus cleaner 7 from wobbling. There isn't. In particular, when a record stylus is inserted into the cleaning brush of the actuating part 9 located at a high position as described above, the cleaning brush is pushed downward by the record stylus, and the stylus cleaner tends to tilt forward. Since the center of gravity G moves toward the base portion 8 as described above as the operating portion 9 rises, the center of gravity is well balanced and does not tilt forward.

Now, clean the record needle 13 with the cleaning brush 11.
When the setting is completed, press the switch button 16 to drive the electromagnet 20 and vibrate the cleaning brush 11 up and down to move the record stylus 13.
cleaning. In this case, as described above, the present stylus cleaner 7 has good stability and does not wobble due to the vibration of the operating section 9, so that the cleaning work can be carried out reliably.

(Effects of the Invention) As explained above, the present invention includes a base part 8 placed on a table, an electromagnet 20, and a cleaning brush 11 that vibrates by being driven by the electromagnet 20. The main body is divided into an actuating part 9 which is attached to the front part so as to be able to rise and fall, and a slope part a that slopes downward toward the front is provided at the front part of the base part 8. By providing a slide part b that slides along this inclined part a at the rear part, the base part 8 is mounted so that the operating part 9 can be raised and lowered in an oblique direction, so that the height of the cleaning brush 11 can be finely adjusted. When the actuating part 9 is raised to make cleaning easier and to raise the height of the cleaning brush 11, the center of gravity G of the actuating part 9 moves toward the base part 8, and the actuating part 9 is firmly supported by the base part 8. Because it is done,
The center of gravity is well balanced and prevents unnecessary wobbling or leaning forward.

[Brief explanation of the drawing]

The figure shows an embodiment of the present invention.
The figure is a perspective view of the stylus cleaner, Figure 2 is a sectional view, Figure 3 is a partially cutaway plan view, Figure 4 is a side view,
FIG. 5 is a perspective view of a conventional device. 8... Base part, 9... Operating part, 11... Cleaning brush, 20... Electromagnet, a... Inclined part,
b...Slide part.

Claims (1)

[Scope of utility model registration request] A base part 8 is placed on a table, and an actuating part 9 is equipped with an electromagnet 20 and a cleaning brush 11 that is driven by the electromagnet 20 to vibrate, and is attached to the front part of the base part 8 so as to be movable up and down. The main body is formed into parts, and the front part of the base 8 is provided with a slope part a that slopes downward toward the front, and the slide part b slides along the slope part a at the rear part of the operating part 9.
A stylus cleaner characterized in that the actuating part 9 is mounted on the base part 8 so as to be able to move up and down diagonally.