JPH0716181Y2 - Operation unit mechanism - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation section mechanism in which at least a back surface of an operation body is immersed in a panel surface of an electronic device or the like.

[0002]

2. Description of the Related Art Conventionally, in order to improve the appearance of a panel surface of an electronic device or the like, an operating body such as a knob is sometimes arranged so as to be flush with the panel surface. FIG. 3 is a perspective view of the tuner. 1 is a cabinet, 1a is a display unit 2 and an operation unit 3
It is the panel surface on which the etc. are arranged. Reference numeral 4 denotes a tuning operation member, which is arranged such that its operation surface 4a and the panel surface 1a are flush with each other. Reference numeral 5 is an operation hole, which is an operation surface 4a.
It is placed near the outer circumference of.

FIG. 4 is a view showing a cross section corresponding to the operating member 4. A circular recess 1b is provided on the panel surface 1a. A hole 1c is formed at the center of the recess 1b, and a mounting surface 1d is formed on one surface (the upper surface in FIG. 4).

Reference numeral 8 denotes a member to be adjusted, which is fixed to a wiring board 9 in the cabinet 1. This adjusted member 8 is
It is arranged at a portion corresponding to the concave portion 1b. The shaft portion 8a of the adjusted member 8 is formed with a circular cutout portion 8b in a range from the tip (the upper end in FIG. 4) to the front side of the base portion. The circular portion 8b has a substantially D-shaped vertical cross section and is formed in a tapered shape.

The operating member 4 is composed of a circular disk portion 6 and a shaft portion 7, and is integrally formed of, for example, a hard synthetic resin. The disc portion 6 has an operation surface 4a on one surface (upper surface in FIG. 4) and a back surface 4b on the other surface (lower surface in FIG. 4). The operation hole 5 described above is formed in a curved surface on the operation surface 4a. The shaft portion 7 extends from the back surface 4b of the disk portion 6 from the center thereof in the same direction as the center line. The shaft portion 7 of the operation member 4 is provided with a hole 7a corresponding to the circular cutout portion 8b of the adjusted member 8. The size of the hole 7a is set to be substantially the same as the size of the tip of the circular cutout portion 8b of the adjusted member 8.

In order to engage the operating member 4 and the adjusted member 8, the hole 7a of the operating member 4 and the circular cutout portion 8b of the adjusted member 8 are opposed to each other in a corresponding state. Then, the operation member 4 is pressed toward the adjusted member 8 side (lower side in FIG. 4). This allows
The operation member 4 and the adjusted member 8 are fitted together. In this fitted state, as shown in FIG. 4, the operation member 4 is arranged such that the operation surface 4a and the panel surface 1a are flush with each other with a slight gap with respect to the concave portion 1b of the panel surface 1a. Also, the shaft portion 7
Since the circular cutout 8b and the circular cutout 8b are pressure-bonded to each other, the operating member 4 cannot be easily pulled out from the circular cutout 8b of the adjusted member 8.

The operation member 4 is operated by inserting the finger into the operation hole 5 and then rotating the operation member 4. By this rotation,
Tuning is performed. The rotation of the operating member 4 and the shaft portion 8a of the adjusted member 8 is smoothly performed by fitting the circular cutout portion 8b and the hole 7a.

[0008]

By the way, there are cases where the operating member 4 is removed from the cabinet 1 for the purpose of tuner processing or the like. In this case, since the panel surface 1a and the operation surface 4a of the operation member 4 are flush with each other, the outer peripheral surface of the operation member 4 cannot be pulled out and pulled out. Therefore, as shown by the chain double-dashed line in FIG. 4, a tweezers 10 having a substantially L-shaped tip is inserted into the gap between the concave portion 1b of the panel surface 1a and the operating member 4. However, when inserting or pulling out the tweezers 10 into the concave portion 1b, there arises a problem that the surface of the operation member 4, especially the vicinity of the outer peripheral surface is damaged.

Therefore, an object of the present invention is to enable the operation body to be removed without damaging it.

[0010]

In order to solve the above-mentioned problems, according to the present invention, the back surface of the operating body is recessed in a mounted portion recessed in the panel surface of the electronic device, and the operating body is operated. In the operation portion mechanism that is fitted and crimped so that it can be inserted into and removed from the operating body, one or a plurality of engaging pieces that the thread-like removing means engages when the operating body is removed are provided on the back surface of the operating body. It is a feature.

[0011]

[Function] Between the panel surface 1a and the back surface 4b of the operating body 4,
For example, the thread 12 or the like is inserted. The thread 12 is pulled, and the operating body 4 is pulled out while engaging with the engaging piece 11. Therefore, the operating body 4 can be removed without using tweezers or the like, and the damage at the time of removal can be eliminated.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In these figures, parts corresponding to those in FIG. 4 are designated by the same reference numerals, and detailed description thereof will be omitted.

In this example, the engaging piece 11 is provided on the back surface 4b of the disk portion 6 of the operating member 4 so as to project therefrom. The cross section of this engagement piece 11 is substantially cylindrical. As shown in FIGS. 1 and 2, the engagement piece 11 is arranged along the outer peripheral surface of the back surface 4b of the disc portion 6 near the outer peripheral surface thereof. As shown in FIG. 2, a plurality of engaging pieces 11 are arranged around the shaft portion 7 of the operating member 4 with a predetermined angular interval. This example is configured as described above, and is otherwise similar to the example of FIG.

According to this embodiment, in order to pull out the operating member 4 from the cabinet 1, a strong yarn 12 made of synthetic fiber, for example, is used.
A part of the mounting surface 1d of the recess 1b and the back surface 4b of the operating member 4
Insert it in the gap between. Then, the thread 12 is pulled out (see FIG.
Then pull upward). At this time, the thread 12 engages with the engagement piece 11 on the back surface 4b (illustrated by the chain double-dashed line in FIG. 2). Since the operating member 4 is pulled in this engaged state, the operating member 4 is pulled out from the circular cutout portion 8b of the adjusted member 8. The thread 12 is ideally pulled in the state shown by the chain double-dashed line in FIG. 2, but it can also be pulled while it is engaged with another engagement piece 11.

In this example, since the engaging piece 11 arranged on the back surface 4b of the operating member 4 and the thread 12 engage with each other, the thread 12 slides near the outer peripheral surface of the back surface 4b when the operating member 4 is pulled out. You can pull without. That is, the operation member 4 can be removed with the thread 12 instead of the removal work with tweezers. Therefore, since the operating member 4 is pulled out with the thread 12, it is possible to prevent damage to the vicinity of the outer peripheral surface of the operating member 4.

The shape, arrangement position, and number of engaging pieces can be set arbitrarily. Further, in the above-mentioned embodiment, the operating member 4 has a circular shape, but the operating body is not limited to this shape and may have a polygonal shape. Further, in the above-described embodiment, the operation unit mechanism in the tuner is applied, but the device to which the operation unit mechanism is applied is not limited to this.

[0017]

[Effect of the Invention] According to this invention, when the operation body is removed,
For example, since the thread or the like engages with the engaging piece provided on the back surface of the operating body, the operating body can be pulled out without using tweezers and the like, and damage at the time of removal can be eliminated.

[Brief description of drawings]

FIG. 1 is a diagram showing a cross section of an example.

FIG. 2 is a view showing a cross section taken along line I-I of FIG.

FIG. 3 is a perspective view of a tuner.

FIG. 4 is a view showing a cross section of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cabinet 1a Panel surface 1b Recessed portion 1d Mounting surface 4 Operation member 4b Back surface 8 Adjusted member 11 Engaging piece 12 Thread

Claims (1)

[Scope of utility model registration request] 1. An operating section mechanism in which a back surface of an operating body is recessed in a mounted portion recessed in a panel surface of an electronic device, and the operating body is fitted and crimped so as to be inserted into and removed from the operated body. An operating portion mechanism, wherein one or a plurality of engaging pieces with which thread-like removing means engages when the operating body is removed are provided on the back surface of the operating body.