JPH0218900Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Technical Field) The present invention relates to a multiple switch using a rotary actuator, which is suitably applied to a telephone switch or the like.

(Prior Art) Conventionally, a switch having a structure in which switching is performed by sliding an actuator has been widely used as a switch. However, such a sliding switch requires an extra space within the housing corresponding to the sliding length of the actuator, and it is necessary to increase the length of the return spring of the actuator so that the actuator can act with a small force. For some reason, there was a problem with the switch becoming larger. Moreover,
This type of sliding switch is configured to be switched via a separator between the actuator and the switch, which increases the number of parts and complicates the assembly process accordingly. It was hot. Furthermore, there are problems such as not being able to easily adapt to changes in the switching sequence, low contact reliability between the movable terminal and the fixed terminal, and the need for lubricant at the contact area between the two terminals, which can lead to problems caused by the lubricant. There was a risk that this would occur.

(Purpose) This invention solves the above problems,
An object of the present invention is to provide a multiple switch using a rotary actuator, which can achieve downsizing and simplification of the switch as a whole by making the actuator rotary.

(Structure) A multiple switch using the rotary actuator of the present invention to achieve the above object has a fixed terminal block in which a plurality of fixed terminals are arranged in parallel in a body, and a plurality of movable terminals corresponding to the fixed terminals. Attach a movable terminal block with parallel terminals, and
Rotation that is installed in the body by a small diameter shaft part and rotated by a predetermined angle between the non-operating position and the operating position, bringing some of the movable terminals into contact with the fixed terminals and separating the remaining movable terminals from the fixed terminals. A rotary actuator is mounted on the rotary actuator, and a coil spring for rotationally biasing the actuator toward a non-operating position is fitted into an annular groove formed in the rotary actuator along the small diameter shaft portion.

(Example) Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Figure 1A is a plan view of the multiple switch with the housing cover removed, Figures 1B and C are side views showing each side of the actuator, Figure 2 is an exploded perspective view, and Figure 3 is a side view showing each side of the actuator.
The figure is a sectional view taken along the - line in FIG. 1A.

The body of the multiple switch includes a housing 1 that is open at the top and a cover 17 that closes the upper opening.
It consists of. The housing 1 and cover 17 are made of electrically insulating synthetic resin.

Inside the housing 1, an actuator 2,
A fixed terminal block 3 and a movable terminal block 4 are built-in. Then, the actuator 2 and the block bases 32, 42 of each block 3, 4
Both are made of synthetic resin with electrical insulation properties.

The fixed terminal block 3 is constructed by inserting and fixing fixed terminals 3a, 3b, .
Guide grooves 111, 1 in which convex portions 321, 322, 323 are formed on the inner surface of one side wall 11 of the housing 1.
12 and 113 and pushed in from above, it is fixed between the side wall 11 and the inner wall 12,
The bent portions of the upper ends of the fixed terminals 3a, 3b, . . . , 3f are received and supported by the upper surface of the inner wall 12.

The movable terminal block 4 has movable terminals 4a, 4b, . . . whose upper ends are bent at right angles toward the fixed terminal side.
4f are inserted and fixed into the block base 42 at predetermined intervals, and the convex portions (not shown) of the block base 42 are formed in the inner surface of the other side wall 13 of the housing 1.
133 and is pushed in from above, thereby being fixed between the side wall 13 and the inner wall 14.

Then, contact portions 33 are formed on the upper surfaces of the bent portions of the fixed terminals 3a, 3b...3f, and the movable terminals 4a, 4
A contact portion 43 is formed on the bent lower surface of b...4f, and the contact portions 33 and 43 are normally in contact with each other,
Protrusions 24a, 24b...24f of actuator 2
They are pushed up and separated from each other.

The actuator 2 includes protrusions 24a, 24b...2
Cylindrical body 21 in which 4f and isolation flange 251 are alternately formed
A small-diameter shaft portion 22 is formed at both ends of the cylindrical body 21 , and a substantially U-shaped arm 23 is protruded toward the side of the cylindrical body 21 . Bearing hole 15a in rear wall 16,
By engaging with cover 16a and pushing in from above, it is held rotatably, and is also held in a manner that prevents it from coming off upward by blocking protrusions 17a and 17a' formed on the lower surface of cover 17.

Further, at both ends of the cylindrical body 21 of the actuator 2, a cylindrical body 21 is provided along the axis of the small diameter shaft portion 22.
Annular grooves 50 and 51 are formed inwardly, and a forward coil spring 60 is fitted into one of these annular grooves 50 and 51 to constantly bias the actuator 2 upward. This allows the multiple switch to be configured as a normal operation type multiple switch, and a coil spring 61 in the opposite direction that constantly biases the actuator 2 downward is fitted into the annular groove 51 on the other side. hand,
The switch can be configured as a reverse operation type multiple switch, and these forward and reverse coil springs 60, 61 are selectively inserted as appropriate depending on the usage and installation conditions of the multiple switch. .

Therefore, in the annular groove 50 on one side, the first
In Figure B, a first engagement groove 50a is formed at the lower left side along the depth direction of the annular groove 50 and extends horizontally through the outer side of the cylindrical body 21, and a recess is formed at the upper left side. A first step portion 50b is formed, and when a forward coil spring 60 (see FIG. 2) is inserted into the annular groove 50, one end portion 60a of the coil spring 60 is inserted into the first engagement groove 50.
On the back side of a, the other end portion 60b is connected to the first step portion 50b.
When the cover 17 is attached to the housing 1 from this state, the other end 60b of the coil spring 60 is locked to the first locking part 17b of the cover 17, as shown in FIG. When locked, the arm 23 of the actuator 2 is always urged upward. Therefore, the multiple switch can be configured as a normal operation type multiple switch.

On the other hand, in the annular groove 51 on the other side, a first
In Figure C, a second engagement groove 51a is formed at the upper left side along the depth direction of the annular groove 51 and vertically penetrates the upper side of the cylindrical body 21, and a concave groove 51a is formed at the lower right side. A two-step portion 51b is formed, and when a coil spring 61 (see FIG. 2) in the opposite direction is inserted into the annular groove 51, one end 61a of the coil spring 61 is inserted into the second engagement groove 51.
On the back side of a, the other end portion 61b is connected to the second step portion 51b.
When the cover 17 is attached to the housing 1 from this state, as shown in FIG. 4, the arm 2 of the actuator 2
3 can be configured as a reverse operation type multiple switch that always biases the switch downward.

In the above embodiment, the annular grooves 5 of different shapes are provided at both ends of the cylindrical body 21 of the actuator 2.
0 and 51, and a coil spring 6 in a forward or reverse direction is selectively installed in these annular grooves 50 and 51.
0,61, but the present invention is not necessarily limited to such a configuration; in short, it is sufficient that the coil spring can be fitted into the annular groove formed in the cylindrical body 21 of the actuator 2. .

Therefore, in the present invention, the same type of annular groove is formed at both ends of the cylindrical body 21 of the actuator 2,
One coil spring may be fitted into each of the annular grooves, and an annular groove into which a forward direction coil spring is fitted or a reverse direction coil spring may be fitted into only one end of the cylindrical body 21. It is also possible to form an annular groove into which the coil spring is fitted.

(Effects) As described above, the present invention is constructed by fitting the coil spring into the annular groove formed in the actuator, so even if the coil spring is lengthened, the overall length of the actuator and coil spring is short. Therefore, it has the unique practical effect of effectively preventing short-term deterioration of spring characteristics caused by short coil springs, and making it possible to miniaturize the multiple switch as a whole. .

[Brief explanation of the drawing]

Figure 1A is a plan view of the multiple switch with the cover removed, Figures 1B and C are side views showing each side of the actuator, Figure 2 is an exploded perspective view, and Figure 3 is the first FIG. 4 is a cross-sectional view taken along the line A in FIG. 4, and FIG. 4 is a cross-sectional view showing a reverse operation type configuration. 2... Actuator, 3... Fixed terminal block, 4... Movable terminal block, 21... Cylindrical body,
22... Small diameter shaft portion, 50, 51... Annular groove, 60
...Forward direction coil spring, 61...Reverse direction coil spring.

Claims (1)

[Claims for Utility Model Registration] (1) A fixed terminal block having a plurality of fixed terminals arranged side by side and a movable terminal block having a plurality of movable terminals corresponding to the fixed terminals arranged side by side are installed in the body, and It is installed in the body by a small diameter shaft part and rotated by a predetermined angle between the non-operating position and the operating position, so that some of the movable terminals are brought into contact with the fixed terminals, and the remaining movable terminals are separated from the fixed terminals. A rotary actuator is mounted, and a coil spring is fitted into an annular groove formed in the rotary actuator along the small diameter shaft portion to bias the actuator toward a non-operating position. A multiple switch using a rotary actuator. (2) The annular groove formed in the rotary actuator along the small diameter shaft portion has one side as an annular groove for accommodating a forward direction coil spring, and the other side as an annular groove for accommodating a reverse direction coil spring. A multiple switch using a rotary actuator according to claim 1 of the utility model registration claim.