JPS5971218A - Rotary operation type electric part - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rotary-operable electrical component such as a rotary switch, volume, variable capacitor, etc., which is equipped with a rotary operating shaft. By rotating the rotary operation shaft by rotating the rotary operation shaft, the movable contact attached to the rotary operation shaft or the movable electrode can be rotated to change the switch, increase or decrease the resistance value, straddle, or increase or decrease the capacitor capacity. I can make you do it.

However, this rotating electrical component has the disadvantage of low operability when it is necessary to urgently return the rotating operating shaft to its original state because it must be done manually. Therefore, it is desirable to improve this operability. Therefore, the present invention aims to engage the rotary operation shaft at any position using a cam plate attached to the rotary operation shaft, a ball and a leaf spring held in the frame. a locking means capable of being stopped; a releasing means for moving the cam plate in the direction of the rotational operation shaft to release the locking of the rotational operation shaft by the locking means; and an intervening device between the rotational operation shaft and the case. By using a rotary operation electric component equipped with a return spring that returns the rotary operation shaft to its original state, it is possible to quickly return the rotary operation shaft to its original state with a single touch. It is characterized by improving the operability of the shaft.

Next, the present invention will be explained based on the drawings.

FIG. 1 shows a rotary switch applied to this invention. In FIG. 1, (31 is a frame. This frame +31H1 As shown in FIG. 2, opposing pieces (3e), (3f), and this opposing piece (3e).

(3f) is formed in a substantially U-shape from the continuous portion (3g). Each of the opposing pieces (3e) and (3f) has a slit (3h) and (3k) that opens at the tip. These slits (3h), (3k) U-valley opposing pieces (3e), (3f) are divided into two pieces (3a), (3b) or (3C), (3d), and six pieces (3a )
, (3b).

(3C) and (3d) have a narrow tip (31L (3m)
, (3n).

(3p) are provided respectively.

In Figure 2, (9) id case, (9a), (9b
)fl Protrusions provided on both ends of the case (9), (L
3) are rotating electric circuit parts, (13a), (13b)
11- are protrusions provided at both ends of the rotating electric circuit component OJ. One of the protrusions (9a) and (13a) are sequentially fitted into the slit (3k) of the frame (3), and the other protrusion (9b).

(13b) are sequentially fitted into the slits (3h), so that the case (9) and the rotating electrical circuit component 0.1 are sequentially attached to the frame (3) n7. And the piece (
3a).

(3b), (3c), (3d) tips (31), (3
m), (3n).

(3p) to the holes (14a) and (14b) of the stop plate (14)
, (14C), (14d), then insert the tip (31
), (3m), (3n), and (3p), the stop plate (14) is attached to the frame (3).This allows the case (9) to rotate. 11. The electrical circuit component 0th floor is removed from the frame (3).
It has stopped.

(2) is a cylindrical bearing that passes through the continuous portion (3g) of the frame (3). This bearing (2) has a rotary operation shaft (1
) is rotatably held at n-. This rotary operation shaft (1
) is the hole (9c) of the case (9), the rotating electric circuit component ll
3) through the hole (13c), and the hole (14
I look forward to e).

The VC inside the case (9) is fitted with the rotary operation shaft (1) so that they can rotate relative to each other, and the rotary piece (4) and the cam plate (6) are stored in an overlapping state as shown in Fig. 3. has been done.

P, 5 (Fig. 3 shows the superimposed rotating piece (4) and cam plate (6)
) seen from the bottom of FIG. 2. ). This rotating piece (4) is provided with a substantially semicircular groove (4a) and a fan-shaped protrusion (4b) protruding from the outer periphery of the groove, and the protrusion (4b)
The protrusion (4d) is provided with a groove (4C)' approximately at the center of one side of the outer periphery. Then, the substantially semicircular groove portion (4a
) is loosely fitted with a return spring az that returns the rotational operation shaft (1) to its original state. Both ends (5a) and (5a') of this return spring (5) are connected to the rotating piece (4).
) is projected outwardly and forms a force on the case (9).

The side surfaces (9e) and (9f) of the recessed portion (9d) are inscribed in each side.

Further, the cam plate (6) includes a plurality of cam portions (6b) on the outer periphery of the fan-shaped portion (6a), and the opposing pieces (, 3) of the frame (3).
b).

The key-shaped parts (3q) and (3r) on the side of the continuous part (3g) of (3d)
) and the ball (force) interposed between the leaf spring (8) and the cam part (6b) of the cam plate (6), the rotary operation shaft (1) is rotated. It forms a locking means that can be locked in any position.

Furthermore, a rotary operation shaft p is provided in the hole (9C) of the case (9).
, 6 (via 11, an arashiku spring (10) and a washer αυ are housed. This washer (11) is attached to the cylindrical part (12a) of the bushing a2 interposed in the rotating electric circuit component 03. It is 01, the rotation operation axis (1
) is fitted into the push-piece a2.

The above-mentioned back spring QO) is interposed between the washer Qll and the cam plate (6), and normally pushes the rotational operation shaft (1) outward. At the time of the movable contact mounting plate of the rotating electrical component α, the rotary operation shaft (c) is attached via the bush (L).
The force is fixed at 11. By rotating this movable contact mounting plate α9, it can be attached to the movable contact mounting plate α9.
l, movable contact [6), +1.61' and main body (1~,
The contact position with the fixed contact α0.07)' on the α4 side can be switched. In the figure (1'l, (lω'
are terminals connected to a plurality of fixed contacts (17) and u'n', respectively.

Next, the operation of the rotary switch having such a configuration will be explained.

Under normal conditions, by turning the operation knob (not shown), the rotary operation shaft (11) is rotated.
When you operate 1), the rotary piece (4), cam plate (6),
7. The movable contact mounting plate 051 rotates together. When this rotary piece (4) is rotated, the end of the cylindrical portion (4e) (see Figure 1) and the end (5) of the return spring (5) are rotated.
a), the side of the housing H (5a') - ten thousand four parts (9d) (
9e) In addition, the return spring (5) is wound in the opposite direction from -10,000 in 14 (9f).As a result, the return spring (5) attempts to return the rotating operation shaft (1) to its original state.

On the other hand, the cam plate (6) also rotates at the same time as the counterfeit. At this time, the cam part (6b) of the cam plate (6) is connected to the ball (force) by the leaf spring (8) attached to the key-shaped parts (3q) and (3r) of the frame (3). 0 rotates with moderation and the rotation operation ends.At this time, the spring force of the leaf spring (8) exceeds the return force of the return spring (5), so
Even if the return spring (5) acts as described above, the rotational operation shaft (1) remains locked at any angular position. When the movable contact mounting plate 0ω rotates in conjunction with the rotation of the shaft (1), the movable contacts 1161, (161' and the plurality of fixed contacts u7).

The contact position with a is switched.

By the way, when the rotary operation shaft (1) locked at an arbitrary position is pushed toward the case (9), the rear seek spring (10) is compressed, and the cam plate (6) is moved in the same direction as the direction of movement of the rotary operation shaft (1).
) moves and the protrusion (4) of the ball (7) and rotating piece (4) moves.
d) and is located on the smooth circular protrusion (4b). At this time, since the spring force of the plate spring (8) is drastically reduced, the return force of the return spring (5) exceeds the spring force of the plate spring (8), and the rotational operation shaft (1) is rotated by the return spring (5). Due to the spring force, it quickly returns to its original state. At this time, the spring force of Ashkuba 0@ acts to push back the rotation operation @ (1) during return,
The rotating piece (4) returns to its original position on the protrusion (4d).

Then, when the ball (force) reaches the position of the groove (4C) provided in the center of the protrusion (4d), the rotational operation shaft (1) moves to the groove (4C).
Ashkuba fu (10
It is returned to its original state by the spring force of 1.

As explained above, the present invention includes a locking means that can lock the rotational operation shaft at any position by a cam plate attached to the rotational operation shaft, a ball held by the frame, and a leaf spring; a release means for moving the cam plate in the direction of the rotation operation shaft to release the locking of the rotation operation shaft by the locking means; and an intervening mechanism between the rotation operation shaft and the case. Since the rotary operating shaft is a rotary operating type electric component that includes a return spring that returns the rotating operating shaft to its original state VC, the rotating operating shaft can be quickly returned to its original state with a single touch. Operability is greatly improved.

[Brief explanation of drawings]

Fig. 1 is a sectional view of a rotary switch showing an embodiment of the present invention, Fig. 2 is an exploded perspective view of the rotary switch shown in Fig. 1, and Fig. 3 shows the rotary piece (4) and cam plate shown in Fig. 1. (6)
FIG. 4 is a perspective view showing a state in which the rotary operation shaft (1) is equipped with a return spring (5) and a return spring (5). (11... Rotation operation axis t4J...
Rotating piece (5)...Return spring (6)
...Cam plate (force...hole (8)...
...Plate spring (9) ...Case 0 [・
...Ashuku spring Q31...Rotating electrical circuit parts P, 10

Claims (1)

[Claims] a cam plate attached to the rotational operation shaft, a ball and a leaf spring held in the frame, and a locking means that allows the rotational operation shaft to be locked at any position; a release means that moves to release the locking of the rotary operating shaft by the locking means; and a return spring that is interposed between the rotary operating shaft and the case and returns the rotary operating shaft to its original state. A rotary operation type electrical component characterized by: