JP2557865Y2 - Electronic device knob structure - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The invention is a knob structure of an electronic device in which an operation part (rotary dial) is turned to operate electronic parts such as a rotary switch and a rotary encoder. It is about.

[Summary of Invention] In the present invention, when an operation knob mounted on the surface of a cabinet is rotated, the rotation is controlled by a rotary switch or a rotary encoder mounted on a printed circuit board or the like in the cabinet via a rotation transmitting means. In an electronic device that is transmitted to an electronic component and configured to rotationally drive the electronic component, the rotation transmission unit is attached to one of a rotation center axis of an operation knob and a rotating part of the electronic component, A pin engaging plate provided with a long groove-shaped pin fitting portion in the radial direction about the rotation center axis or the rotation portion, and a pin engagement plate mounted on the other and eccentric from the rotation center axis or the rotation portion center. By using a connecting member provided with a mating pin (eccentric shaft), the positional deviation between the rotation center axis of the operation knob and the rotating part of the electronic component can be reduced by the length. Absorbed by Jo pin engaging portion, is obtained by the rotation of the operation knob engaging pin fitted to the pin fitting part to be transmitted to the electronic component.

[Prior Art] An electronic device such as a VTR is provided with a large number of operation knobs (rotary dials). When the operation knob 101 is rotated as shown in FIG.
, And transmitted to an electronic component 103 such as a rotary switch or a rotary encoder, and the electronic component 103 is driven to rotate.

The operation knob 101 is provided with a rotation center shaft 104, and the rotation center shaft 104
The operation knob 101 is a cabinet by mating with 106.
While being rotatably mounted on the surface of 105, electronic components 103 such as a rotary switch and a rotary encoder
Is mounted on a printed circuit board 107, and the printed circuit board 107 is mounted in the cabinet 105 via a chassis or the like (not shown). As the rotation transmitting means 102, a sleeve provided with a semicircular bearing hole 108 is used, and a semicircular portion 109 at the tip of the rotation center shaft 104 of the operation knob 101 is fitted to one end of the sleeve. By fitting the semicircular portion 111 at the tip of the rotating part (rotating shaft) 110 of the electronic component 103 on the end side, the rotating central shaft 104 of the operating knob 101 and the rotating part 110 of the electronic component 103 are connected, and the operating knob The rotation of 101 causes the electronic component 103 to rotate.

[Problem to be Solved by the Invention] In the above-described conventional electronic device, a sleeve is used as the rotation transmitting means 102 as described above, and the rotation center shaft 104 of the operation knob 101 is attached to one end of the sleeve. The rotation part 110 of the electronic component 103 is fitted to the other end side, and the rotation center axis 104 of the operation knob 101 and the rotation part 110 of the electronic component 103 are connected to each other. , The position of the axis (rotation center) of the rotation center axis 104 of the operation knob 101 attached to the cabinet 105 and the rotation unit 110 of the electronic component 103 attached to the printed circuit board 107 In the case where the axial center positions of the rotation center shaft 104 and the rotation unit 110 are
There was a problem that it became difficult to connect with the sleeve as 2.

The present invention solves the above-mentioned conventional problems, and even if the axis of the rotation center axis of the operation knob and the axis of the rotating part of the electronic component are slightly displaced, the deviation is absorbed and the operation knob is removed. An object of the present invention is to provide a knob structure of an electronic device that can easily connect an electronic component and transmit rotation of an operation knob to the electronic component.

[Means for Solving the Problems] When the operation knob mounted on the surface of the cabinet is rotated, the rotation is controlled by a rotary switch or a rotary encoder mounted on a printed circuit board or the like in the cabinet via a rotation transmitting means. In the knob structure of an electronic device transmitted to an electronic component and configured to rotationally drive the electronic component, the rotation transmission unit may be configured such that a rotation center axis is fitted to a bearing provided on the cabinet. An operation knob that is rotatably mounted with respect to and rotates a rotating portion of an electronic component provided in the cabinet; and one of a rotation center axis of the operating knob and a rotating portion of the electronic component. The center is attached to
A pin engagement plate provided with a long groove-shaped pin fitting portion in a radial direction from the center portion, and one end is attached to the other, and the other end is fitted to the pin fitting portion to rotate the operation knob. And a connecting member provided with an engagement pin for transmitting the rotation to the rotating part of the electronic component via the pin engaging plate, and a rotation center of the operation knob with respect to the cabinet and a shaft of the rotating part of the electronic component. The misalignment with the center is absorbed between the pin fitting portion and the engaging pin.

[Operation] The rotation of the operation knob is transmitted to the electronic component side via the connecting member provided with the pin engaging plate and the engaging pin fitted to the pin fitting portion of the pin engaging plate. .

Since the pin fitting portion provided on the pin engaging plate is formed in a long groove shape in the radial direction, the position of the axis of the rotation center axis of the operation knob and the position of the axis of the rotating portion of the electronic component are slightly shifted. Even in such a case, the shift can be absorbed by the long groove-shaped pin fitting portion, the engagement pin can be fitted to the pin fitting portion, and the rotation of the operation knob can be transmitted to the electronic component. it can.

[Embodiment] Next, the knob structure of the electronic device of the present invention will be described with reference to FIGS.

In FIG. 1, reference numeral 1 denotes an electronic device of the present invention. When the operation knob 2 is rotated as shown in FIG. 2, the rotation is transmitted to an electronic component 4 via a rotation transmitting means 3. The electronic component 4 is rotated.

The operation knob 2 is formed in a cylindrical shape, and a rotation center shaft 5 is provided at the center of one side surface. And
The rotation center shaft 5 is fitted to a bearing portion (bearing bush) 7 provided in the cabinet 6, so that the cabinet 6
The electronic component 4 is rotated by the rotation.

The electronic components 4 that are rotated by the operation knob 2 include a rotary switch, a rotary encoder, and the like. These electronic components 4 are printed on a printed circuit board 9 with its rotating unit 8 facing the rotation center axis 5 of the operation knob 2. To the cabinet 6.

The rotation transmitting means 3 is provided with a rotation center shaft 5 of the operation knob 2.
A pin engaging plate 11 provided with a long groove-shaped pin fitting portion 10 in a radial direction about the rotation center axis 5;
The connecting member 13 is attached to the rotating part 8 of the electronic component 4 and has an engaging pin 12 fitted to the pin fitting part 10.

The pin engaging plate 11 is formed in a disk shape, and has a semicircular rotating portion receiving hole 14 at the center thereof, and the semicircular tip of the rotation center shaft 5 of the operation knob 2 is formed in the hole 14. Part 15 is mated,
It is attached to the operation knob 2 by screwing.

The connecting member 13 is formed in a crank shape having a length approximately equal to the radius of the pin engaging plate 11, and the engaging pin 12 is provided on a pin supporting portion 16 at one end, and a half is provided at the other end. A circular rotating part receiving hole 17 is formed, and the rotating part receiving hole 17 is formed.
By fitting a semicircular portion 18 at the tip of the rotating part 8 of the electronic component 4 to the electronic component 4, it can be attached to the tip of the rotating part 8 of the electronic component 4.

The engaging pin 12 is slidably fitted in a pin receiving hole 19 provided on one end side of the connecting member 13, and its tip is moved by the spring force of a coil spring 20 mounted in the pin receiving hole 19. The portion protrudes from the surface of the pin support 16. Then, when this engagement pin 12 matches the position of the pin engagement portion 10 of the pin engagement plate 11 at the time of assembling the device,
It fits into the pin fitting portion 10 by the spring force of the coil spring 20, and when it does not match the position of the pin fitting portion 10, it is pushed by the surface of the pin engagement plate 11 and resists the spring force of the coil spring 20. It is designed to retreat.

Since the structure of the knob of the electronic device according to the embodiment has the above-described configuration, the knob of the electronic device 4 is connected to the pin fitting portion 10 of the pin engaging plate 11 attached to the rotation center shaft 5 of the operation knob 2. If the engaging pin 12 of the attached connecting member 13 is fitted, the rotation of the operation knob 2 is reliably transmitted to the electronic component 4 by the pin engaging plate 11 and the connecting member 13.

In particular, in the case of the embodiment, the engaging pin 12 is connected to the connecting member 13.
When the tip of the engaging pin 12 comes into contact with the surface of the pin engaging plate 11 during assembly of the device, the engaging pin 12 is attached to the coil spring 20.
Will be pushed back against the spring force of. Therefore, if the operation knob 2 is idled in this state, the pin engagement plate
When the pin engaging portion 10 of 11 comes to the position of the engaging pin 12, the tip of the engaging pin 12 is fitted into the pin engaging portion 10, and the pin engaging plate 11 and the connecting member 13 are connected. It will be.

In the embodiment shown in the drawings, the case where the engagement pin 12 is slidably attached to the connecting member 13 is shown, but the engagement pin 12 may be fixedly attached. Alternatively, the pin engaging plate 11 may be attached to the rotating part 8 of the electronic component 4, and the connecting member 13 may be attached to the rotation center shaft 5 of the operation knob 2.

[Effects of the Invention] As described above, according to the present invention, the position of the rotation center axis of the operation knob and the mutual displacement of the rotation parts of the electronic component rotated by the operation knob are determined by the long groove provided on the pin engagement plate. In this case, the rotation of the operation knob can be reliably transmitted to the electronic component even when the assembling is absorbed by the pin-shaped fitting portion and a slight assembling error occurs.

[Brief description of the drawings]

FIG. 1 is a perspective view of the electronic device of the present invention as viewed from the front side, FIG. 2 is an exploded perspective view of a main part, FIG.
The figure is a perspective view of a conventional example. 1 ... Electronic device, 2 ... Operation knob, 3 ... Rotation transmission means, 4 ... Electronic components, 5 ... Rotation center axis of operation knob,
6 cabinet, 7 bearing part, 8 rotating part of electronic parts, 9 printed circuit board, 10 pin fitting part, 11
... Pin engaging plate, 12... Engaging pin, 13.

Claims (1)

(57) [Scope of request for utility model registration] An operation for rotatably mounting a rotating part of an electronic component provided in the cabinet by rotatably attaching to a cabinet by fitting a rotation center shaft to a bearing part provided in the cabinet. A knob having a center portion attached to one of the rotation center axis of the operation knob and the rotating portion of the electronic component, and having a long groove-shaped pin fitting portion provided in a radial direction from the center portion; An engagement plate, one end of which is attached to the other end, and the other end of which is fitted to the pin fitting portion to transmit the rotation of the operation knob to the rotating portion of the electronic component via the pin engagement plate; A connection member provided with a pin, wherein the engagement pin is formed from one side of the connection member by a spring force of a spring that is biased in a direction to be fitted to a pin fitting portion of the pin engagement plate. Protrusion Knob structure of an electronic device, characterized in that is adapted to fit into the pin engaging portion Te.