JPS5852642Y2 - Mounting structure of rotating mechanical parts in electrical equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a structure for attaching rotary mechanical parts to a panel in electrical equipment.

Generally, when installing a rotating mechanical part such as a rotary switch on a panel of electrical equipment, it is best to fix the rotating mechanical part so that the rotation angle of the rotating part matches the display on the panel. is necessary.

Therefore, conventionally, a rotation prevention piece of the rotary mechanical component is fitted into a predetermined position on the panel to match the rotation angle of the rotary mechanical component with the display on the panel.

However, with this, it is necessary to match the display such as a scale on the front surface of the panel with the locking part of the detent piece provided on the back side, and it is difficult to directly process the panel or match the process on the front and back sides. Workability is very poor.

In particular, when the panel is made of a soft wooden board like a speaker box, it is difficult to reliably construct the rotation prevention means, and there are drawbacks such as the need for special spacers depending on the thickness of the panel.

The present invention has been made in view of the above points, and includes a sleeve to be attached to a panel, a rotation prevention piece that fits into the sleeve, a rotary type mechanism component that is screwed onto the sleeve, and the rotation type mechanism and the rotation prevention piece. It consists of a spring that is installed between the parts, and the rotating mechanism parts are prevented from rotating by the anti-rotation piece, so that the anti-rotation piece and the display match, and it also absorbs differences in panel thickness. The present invention provides a mounting structure for a rotary mechanical component in an electrical device, which allows for easy mounting workability.

EMBODIMENT OF THE INVENTION Hereinafter, the structure of this invention will be explained about an Example based on drawing.

As shown in FIG. 1, 1 is a panel of an electrical device, and as shown in FIG. 2, an oval-shaped opening 2 that is long in the vertical direction is bored therein.

A sleeve 3 is inserted into the opening 2, and the sleeve 3
As shown in the figure, it consists of a shaft portion 4 and a flange 5 extending from one end of the shaft portion 4.

The shaft portion 4 of the sleeve 3 has an axial through hole 6 opened at both ends at its center, and the through hole 6 has a female screw 6a.
A large diameter portion 6b is formed at the inner end.

The shaft portion 4 is formed into an oval cross section with straight portions on both sides corresponding to the opening 2, and has a male screw 4a in the outer circular arc portion.
is formed and a lock nut 7 is screwed together, and the mounting plate 1 is held between the flange 5 and the lock nut 7.

Further, the outer surface of the flange 5 is provided with markings such as characters.

A detent piece 8 is provided inside the panel 1, and the detent piece 8 has a shaft fitting hole 9 formed therein.

The shaft fitting hole 9 is formed in an oval shape with straight portions on both sides corresponding to the shaft portion 4, and a flange 10 is bent outward and extended from the straight portion.

Further, a locking hole 11 is cut into the upper and lower ends of the circular arc portion of the shaft fitting JL9, and a flange 12 is bent outward and extends into the locking hole 11.

The shaft fitting hole 9 of the locking piece 8 is inserted into the shaft 4, and a spring 13 is interposed between the panel 1 and the locking piece 8, and its elastic force causes the locking piece to close. 8 inwardly, the spring 13 is applied to the flange 10.1.
2 is engaged.

Furthermore, a rotary mechanical component 14 such as a rotary switch is screwed onto the shaft portion 4, and although not shown, one end surface of the rotary mechanical component 14 is provided with a terminal to be connected to a resistor or the like.
A protrusion 15 is provided at the other end, and the protrusion 15 consists of a large diameter part 15a and a small diameter part 15b, and a mounting screw 15C is formed in the small diameter part 15b to be screwed into the through hole 6. has been done.

A rotating shaft 16 projects from the small diameter portion 15b, and the rotating shaft 16 is inserted into the through hole 6 with an interrupting portion 16a formed at the tip thereof into which a driver is fitted.

Further, a rotation preventing protrusion 17 that engages with the locking hole 11 is provided on a part of the outer peripheral edge of the rotary mechanical component 14 .

Next, we will explain the installation and operation.

First, insert the shaft portion 4 of the sleeve 3 into the opening 2 of the panel 1 from the outside.
, and screw the lock nut 7 onto the shaft part 4 from the inside.
The sleeve 3 is fixed to the panel 1.

Next, the spring 13 is inserted into the shaft portion 4 from the inside of the panel 1, and the spring 13 is pressed to fit the detent piece 8 into the shaft fitting hole 9.

While the spring 13 is pressed by the detent piece 8, the mounting screw 15C of the small diameter portion 15b of the rotary mechanical component 14 is screwed into the female thread 6a of the through hole 6, and the detent protrusion of the rotary mechanical component 14 is screwed. When the spring 13 is decompressed at the position where the locking piece 17 fits into the locking hole 11 of the locking piece 8, the locking piece 8 is pressed inward, and the locking protrusion 17
When the locking hole 11 is engaged with the rotation angle of the rotation shaft 16 and the indication on the sleeve 3, the rotary mechanical component 1 is rotated.
4 can be installed.

Therefore, in this state, the panel 1, the sleeve 3, and the rotation stopper piece 8 are connected to each other by the oval-shaped opening 2, the shaft portion 4, and the shaft fitting hole 9, and the rotation stopper piece 8 and the rotating mechanism component 14 are Since the locking hole 11 and the locking protrusion 17 prevent the relative positions from changing, the display of the sleeve 3 and the position of the rotary mechanical component 14 do not change even if the rotation shaft 16 is operated with a screwdriver. It always matches without doing anything.

In this embodiment, the openings 2. of the panel 1. sleeve 3
Although the cross section of the shaft portion 4 and the shaft fitting hole 9 of the anti-rotation piece 8 are oval in shape, they may have any non-circular shape such as a rectangle so that they cannot rotate with respect to each other.

In addition, although two locking holes 11 are formed in the rotation prevention piece 8, there may be only one locking hole 11.
A knob may be attached from the outside.

Furthermore, if the sleeve 3 is attached to the panel 1 while being precisely regulated so that the relative position does not change, the display will be similar to that of the sleeve 3.
It may be attached to panel 1 instead.

Moreover, the present invention can of course be applied to a volume that rotates normally by 300 degrees.

As described above, according to the present invention, a hole is provided in the panel, and the sleeve is inserted into the hole in a non-rotatable manner to fix the sleeve to the mounting plate, so even when the material of the panel is soft and brittle, As with the case of hard materials, it can be installed without causing damage, and the rotary mechanical parts are reliably prevented from rotating by the anti-rotation piece.

In addition, since a spring is interposed between the panel and the anti-rotation piece, even if the panel thickness is different, the difference in thickness can be reliably absorbed, and the range that can be absorbed is the mutual shape of the parts. , determined by size and arrangement.

Furthermore, if the sleeve is labeled, even if the sleeve rotates relative to the panel or moves relative to each other due to dimensional errors,
The state of the rotary mechanical component and the display can be matched.

[Brief explanation of the drawing]

The drawings illustrate embodiments of the present invention, and FIG.
The figure is a front view of the mounting plate, and FIG. 3 is an exploded perspective view showing the mounting structure. 1... Panel, 2... Opening, 3...
...Sleeve, 4...Shaft, 4a...
・Male screw, 5...Flange, 6...Through hole, 6a...Female screw, F...Lock nut, 8...Turn around Stopper piece, 9... Shaft fitting hole, 11... Locking hole, 13...
Spring, 14... Rotating mechanical part, 15.
...Protrusion, 15C...Mounting screw, 16
... Rotation axis, 17 ... Rotation prevention protrusion.

Claims (1)

[Scope of utility model registration request] A flange is provided at one end of a shaft portion having a through hole in the center, and a sleeve having a screw cut in the outer periphery of the shaft portion and the through hole is non-rotatably fitted into the opening of the panel, and the sleeve is attached to the flange. and a locking piece that is tightened to the panel by a nut applied to the shaft outer circumferential screw, and has a shaft fitting hole and a locking hole, and is non-rotatably fitted to the shaft of the sleeve,
The rotating shaft of a rotating mechanical component having a rotating shaft, a mounting screw, and a rotation prevention protrusion is inserted into the through hole of the sleeve, and the mounting screw is screwed into the thread of the through hole to install the rotating mechanical component. The anti-rotation protrusion is fitted into the locking hole of the anti-rotation piece, and the anti-rotation plate is brought into contact with the rotary mechanical component by the elastic force of a spring interposed between the panel and the anti-rotation plate. A mounting structure for a rotary mechanical part in an electrical device, characterized by: