JPH10319155A - Knob for control - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily fix with simple constitution by forming whole body with material having good operation texture and durability and directly impressing a hollow hole in a rotational axis. SOLUTION: This knob for control 10 is formed with a material having good operation texture and durability, for example a material of mixture of polychloride vinyl and nitrile rubber, in cylindrical shape, and a hollow hole 11 provided at one end is formed in slightly smaller diameter than the outer diameter of the rotational axis 12a of an encoder 12. Therefore, only by pressing the rotational axis 12a in the hollow hole 11, the knob for control 10 is fixed and held in the rotational axis 12a. Here, the encoder 12 is fixed to a fixing plate 13 fixed to the panel surface 1a of a switcher control panel device with a fixing nut 13a. A connector 12c at a cable 12b tip end is connected to a connector on a printed substrate 14. Then, by pressing until the tip end of the rotational axis 12a reaches the closed end of the hollow hole 11, the knob for control 10 is assembled to the rotational axis 12a without adjustment.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adjusting knob used for an adjusting device having an adjusting rotary shaft.

[0002]

2. Description of the Related Art For example, as shown in FIGS. 2 and 3, a switcher control panel device for editing a video image includes a display 2 for display and various operation knobs and key switches arranged around the display 2. , Lever and the like.

That is, a plurality of function keys 3 for selecting various effects for giving a special effect to a screen are provided below the display 2. Also,
On the right side of the display 2, for example, an adjustment knob 4 for appropriately adjusting a parameter value of the special effect selected by the function key 3 is provided. Further, a fader lever 5a is provided below the display 2.
And a joystick 5b is provided on the panel surface.

According to the switcher control panel device 1 having such a configuration, for example, the function keys 3
By changing the parameters of the special effect selected by operating the adjustment knob 4, the special effect given to the screen can be appropriately adjusted.

The adjusting knob 4 is attached to one end of an adjusting rotary shaft of an adjusting device such as a variable resistor or an encoder disposed on the back side of the panel surface, and adjusts the rotation of the rotary shaft. To finely adjust the special effects given to the screen. Therefore, since the adjustment knob 4 is particularly frequently used when editing a video screen, in order to improve its operation feeling and further improve the durability against hand oil and the like, for example, It is configured as shown in FIGS.

That is, the adjusting knob 4 comprises a main body 6 and
It is composed of a cover 7 fitted around the main body 6 and a felt 8 provided on the panel surface side of the main body 6. As shown in FIG. 5, the main body 6 is formed of, for example, a substantially cylindrical metal, plastic, or the like. One end of the main body 6 is provided with an encoder or variable resistance adjusting device 9 formed, for example, as shown in FIG. An open hollow hole 6a into which the rotating shaft 9a is press-fitted is provided. A serration 9b in the longitudinal direction is formed by so-called serration processing on the peripheral surface near the tip of the rotating shaft 9a of the adjusting device 9, and a slit 9c is formed at the tip of the rotating shaft 9a. .

Therefore, when the rotary shaft 9a is press-fitted into the hollow hole 6a, the width of the slit 9c is appropriately adjusted in advance, so that the serrations 9b are formed by the restoring force of the rotary shaft 9a. The adjustment knob 4 is fixed and held on the rotating shaft 9a, and the variation in the insertion force and the pull-out force of the adjustment knob 4 is adjusted.

The cover 7 is provided for improving the feel of operation and improving the durability against hand oil and the like. The cover 7 is made of, for example, chloroprene rubber, is fitted on the outer surface of the main body 6, and is formed based on its elasticity. Has been held. The felt 8 is for preventing the end surface of the main body 6 on the panel surface side from directly contacting the panel surface and damaging it, and is attached so as to rotate integrally with the main body 6 on the panel surface side of the main body 6. ing.

[0009]

However, since the conventional adjusting knob 4 is composed of the main body 6, the cover 7 and the felt 8, it has a large number of components and requires an assembling operation. In addition, there has been a problem that parts costs and assembly costs are increased.

Further, the rotating shaft 9a of the adjusting device 9 to be mounted needs to have serrations 9b and slits 9c, and also to adjust the insertion force and the pulling force of the adjusting knob 4 with respect to the rotating shaft 9a. Since the width of the slit 9c needs to be adjusted, there is a problem that the processing cost and the cost of assembling the adjusting device are increased.

In view of the above, an object of the present invention is to provide an adjusting knob which can be easily attached with a simple structure, has a good operation feeling, and has excellent durability.

[0012]

According to the present invention, an object of the present invention is to provide an adjusting device having a hollow hole fitted into a rotating shaft for adjustment, and having a substantially cylindrical outer surface concentric with the rotating shaft. The adjusting knob, which is entirely formed of a durable material having a good operation feeling, is achieved by directly press-fitting the hollow hole into the rotating shaft.

According to the above configuration, since the adjusting knob is integrally formed as a whole, the cost of parts can be reduced as compared with the conventional adjusting knob including a plurality of members, and the assembling can be performed. Since it is unnecessary, the assembly cost can be eliminated.

Further, since the whole of the adjusting knob is made of a material having a good operational feeling and durability, for example, when used as an adjusting knob for adjusting a parameter of a special effect in a switcher control panel device. In such cases, the operation can be performed smoothly, and deterioration due to adhesion of hand oil or the like during the operation can be prevented.

Furthermore, since the adjusting knob has the adjusting rotary shaft of the adjusting device directly press-fitted and mounted in the hollow hole, the serration of the rotary shaft and the processing of the slit as in the related art become unnecessary. Also, the adjustment of the slit width becomes unnecessary, and the assembling to the rotating shaft can be easily performed.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. The embodiments described below are preferred specific examples of the present invention,
Although various technically preferred limits are given, the scope of the present invention is not limited to these embodiments unless otherwise specified in the following description.

FIG. 1 is a sectional side view showing an embodiment of the adjusting knob according to the present invention. This adjustment knob 10
Is a generally cylindrical material made of a mixture of a durable material with a good operating feel, such as a mixture of polyvinyl chloride with excellent mechanical properties and chemical resistance, and nitrile rubber with excellent oil resistance. One end is provided with an open hollow hole 11 into which an adjusting device, for example, a rotary shaft 12a of an encoder 12, is press-fitted.

The diameter of the hollow hole 11 is slightly smaller than the outer diameter of the rotary shaft 12a of the encoder 12. Therefore, the adjustment knob 10 is fixed and held on the rotating shaft 12a only by press-fitting the rotating shaft 12a into the hollow hole 11.

The adjustment knob 10 having such a configuration is attached as follows to, for example, a parameter adjustment encoder of the switcher control panel device 1 shown in FIGS. Here, as shown in FIG. 1, the encoder 12 is fixed to a mounting plate 13 fixed to the panel surface 1a of the switcher control panel device 1 by a mounting nut 13a.

Further, the encoder 12 has a connector 12c provided at the end of a cable 12b for connection.
It is connected to a connector (not shown) on the printed circuit board 14 mounted inside the panel surface 1a. Thus, the encoder 12 is electrically connected to a predetermined circuit formed on the printed board 14.

The adjustment knob 10 is pressed in the direction of arrow A in FIG. 1 until the tip of the rotary shaft 12 a of the encoder 12 reaches the closed end of the hollow hole 11. As a result, the adjustment knob 10 is securely fixed and held to the rotating shaft 12a of the encoder 12. In this case, since the adjusting knob 10 is assembled to the rotary shaft 12a of the encoder 12 without any adjustment, the assembling can be performed easily and in a short time.

In the above-described embodiment, a case has been described in which the adjustment knob 10 for the encoder 12 fixed to the panel surface 1a of the switcher control panel device 1 is assembled. The present invention can be applied as an adjusting device provided with a rotary shaft for adjustment, for example, an adjusting knob for a variable resistor or an encoder.

[0023]

As described above, according to the present invention,
With a simple configuration, it can be easily attached, and the operation feeling is good and the durability can be excellent.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view showing an embodiment of an adjusting knob according to the present invention.

FIG. 2 is a schematic plan view showing an example of a switcher control panel device provided with an adjustment knob.

FIG. 3 is a schematic side view of the switcher control panel device of FIG. 2;

FIG. 4 is an enlarged front view showing an example of a conventional adjustment knob.

FIG. 5 is a partially cutaway side view of the adjustment knob of FIG. 4;

FIG. 6 is a schematic perspective view showing an example of an adjustment device to which the adjustment knob of FIG. 4 is attached.

[Explanation of symbols]

1 ... Switcher control panel device, 1a
..Panel surface, 10 adjustment knob, 11 hollow hole, 12 encoder (adjustment device), 12a
・ Rotating shaft for adjustment, 12b ... cable, 12c ...
Connector, 13 mounting plate, 13a mounting nut, 14 printed circuit board

Claims (2)

[Claims] 1. An adjusting knob having a hollow hole fitted into an adjusting rotating shaft of an adjusting device and having a substantially cylindrical outer surface concentric with the rotating shaft, the whole of which has an operation feeling. The adjusting knob, which is formed integrally from a good and durable material, wherein the hollow hole is directly press-fitted into the rotating shaft. 2. The adjusting knob according to claim 1, wherein said material is composed of a mixture of polyvinyl chloride and nitrile rubber.