JPH0519926Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to an electronic component with a lever that can operate at least two rotary electronic components by swinging one operating lever back and forth and left and right. It is.

[Conventional technology]

FIG. 7 is a perspective view showing a conventional variable resistor with a lever.

As shown in the figure, the conventional variable resistor with a lever has two rotary variable resistors 82 attached to two front sides of a box-shaped case 81.
By freely operating the operating lever 83 protruding from the top surface in the front, rear, left and right directions or rotational direction, the sliding parts 821, 821 of the two rotary variable resistors 82, 82 are rotated, respectively. The rotary variable resistors 82, 82 are configured so that their resistance values can be changed.

When you release your hand from the operating lever 83, the operating lever 83 returns to the vertically upward neutral position due to the elastic force of the coil spring (not shown) attached inside each of the rotary variable resistors 82, 82. .

[The problem that the idea aims to solve]

However, in the case of such a conventional variable resistor with a lever, its internal structure is complicated, such as the need to install a coil spring inside each rotary variable resistor 82, and the number of parts is large. There was a problem in that it was difficult to attach parts such as coil springs to a small box-shaped case. In particular, as the lever type variable resistor becomes smaller, the problem becomes more serious.

The present invention has been made in view of the above points, and it is an object of the present invention to provide an electronic component with a lever that has a simple internal structure, a small number of parts, and a good operating feel.

[Means to solve the problem]

In order to solve the above problems, the present invention includes a case, an operation lever inserted into the case,
a first shaft member whose both ends are rotatably supported within a case, a hole formed approximately in the center thereof through which the operating lever passes and which rotates when the operating lever is swung; The first shaft member is disposed below the first shaft member, and is rotatably supported in the case so that both ends thereof are orthogonal to the rotation axis of the first shaft member, and the operating lever is inserted into the approximately central portion of the case. and a second shaft member that rotates when the operating lever is swung, and a rotary electronic component that is attached to at least one end of each of the first shaft member and the second shaft member. In the electronic component with a lever, spring receivers are provided directly on opposing surfaces of the first shaft member and the second shaft member, and the spring receivers are vertically separated between the two spring receivers. The first and second shaft members are held at the neutral point by rebounding in the direction, and curved when the first and second shaft members rotate from the neutral point.
A coil spring is housed in the shaft member to provide a force for returning to the neutral point.

[Effect]

The neutral point return mechanism for the operating lever can be constructed by simply forming spring receiving portions directly on the first shaft member and the second shaft member and adding one coil spring.

The return force generated when the coil spring is bent (curved) is directly used to return the operating lever to the neutral point.

〔Example〕

Hereinafter, one embodiment of the present invention will be described in detail based on the drawings.

FIG. 1 is an exploded perspective view showing a lever-equipped variable resistor using the present invention.

As shown in the figure, this lever-equipped variable resistor 1 includes a box-shaped case 11, an operation lever 12 inserted into the box-shaped case 11 from the top surface, and a rotating lever 12 inside the box-shaped case 11. A first shaft member 13 that is freely attached, a second shaft member 14 that is rotatably attached inside the box-shaped case 11 so as to be orthogonal to the first shaft member 13, and a box-shaped case 11. Rotary electronic component 1 attached to the side wall of
5, and is arranged between the first shaft member 13 and the second shaft member 14, and the first shaft member 13 and the second shaft member 1
4, and a bottom plate 17 arranged below the second shaft member 14 and fixed to the box-shaped case 11.

Each component will be explained in detail below.

The box-shaped case 11 is made of synthetic resin and has a substantially cubic shape with a hollow interior, the bottom surface of which is open, and a circular hole 111 formed in the center of the top surface. Also, on the two side walls 11a and 11b on the near side, there are rotary electronic components 15, 15' as described below.
A guide protrusion 113 is formed for guiding the substrates 151, 151'. Also, on the four side walls of the box-shaped case 11 are first shaft members 13 as described below.
A shaft support hole 115 for rotatably supporting the second shaft member 14 is provided.

The operating lever 12 is composed of a cylindrical rod made of synthetic resin, and a projection 121 projects from the lower end thereof. The upper part of the protrusion 121 is a flat plate part 123 with parallel cutouts on both sides, and the flat plate part 123 has a hole 12 into which a pin 148 described below is inserted.
5 is formed.

The first shaft member 13 is a substantially disk-shaped disk member 131
An elongated hole 133 is formed approximately in the center of the disc member 131, and tongue pieces 135, 135 are provided extending downward from both ends of the elongated hole 133 in the longitudinal direction of the disc member 131.
Further, cylindrical shaft portions 137, 137, which are rotatably inserted into the shaft support hole 115 of the box-shaped case 11, are formed on both outer sides of the tongue pieces 135, 135. Also, one of the two shaft portions 137
37 (on the near side in the figure) is provided with a locking pawl 139 that is engaged with and fixed to a sliding body 153 of the rotary electronic component 15, which will be described below. Here, FIG. 2 is a sectional view of the center side of the first shaft member 13 in the longitudinal direction. As shown in the figure, a spring receiving portion 132 for receiving a coil spring 16 described below is formed on the lower surface of this disc member 131.

The second shaft member 14 is a substantially disk-shaped disk member 14
1, a long hole 143 is formed in the approximate center thereof, and protruding plates 145, 1 are provided on both sides of the long hole 143.
45 protrudes upward. Small holes 149, 149 through which pins 148 are inserted are formed in the central side walls of the projecting plates 145, 145.
Further, a spring receiving portion 142 for fixing the lower end of the coil spring 16 described below is formed on the entire outer periphery of the upper surface of the disc member 141. In addition, the disk member 14
Tongue pieces 144, 144 are provided upwardly from both ends of the elongated hole 143 in the longitudinal direction.
Furthermore, cylindrical shaft portions 146, 146, which are rotatably inserted into the shaft support hole 115 of the box-shaped case 11, are formed on the outside of both tongue pieces 144, 144,
At the end of one of the shaft parts 146 (on the near side in the figure) is a sliding body 15 of a rotary electronic component 15', which will be described below.
A locking pawl 147 that is engaged and fixed at 3' is provided.

The rotary electronic component 15 includes a substrate 151 and a sliding body 15
It is composed of 3. The substrate 151 is constructed by printing a resistor pattern 151a on a hard insulating plate and connecting a metal terminal 151b to the resistor pattern 151a. Further, a circular hole 151c is formed in the center thereof. Also, the sliding body 153
As shown in Fig. 3, there is a sliding type 1 made of synthetic resin.
A metal slider 153b is fixed inside the slider 53a. Further, a hole 153c for locking the locking pawl 139 of the first shaft member 13 is provided in the center of the sliding member 153a.

Although not shown in FIG. 1, a rotary electronic component 15' having the same shape and structure as this rotary electronic component 15 is also attached to the side wall 11b of the box-shaped case 11.

As shown in FIG. 1, the coil spring 16 is disposed between the first shaft member 13 and the second shaft member 14, and is attached to the outer periphery of the spring receiving portion 132 of the first shaft member 13 (see FIG. 2). The inner diameter is such that the upper and lower parts thereof can be inserted into the outer periphery of the spring receiving part 142 of the second shaft member 14.

The bottom plate 17 is configured to have a size that covers the bottom surface of the box-shaped case 11. An engaging pawl 17a is provided upward from the outer circumferential portion for engaging with the inner surface of the box-shaped case 11. Further, a tongue piece 17b is provided extending upward from the outer peripheral portion of the tongue piece 17b and covering the lower portion of the shaft support hole 115 of the box-shaped case 11. Further, a projection 12 of the operating lever 12 is provided at the center of the bottom plate 17.
1 is provided with a cylindrical projection 17d for locking.

Next, we will explain how to assemble this lever-equipped variable resistor.

As shown in FIG. 1, first, the first shaft member 13 is inserted into the box-shaped case 11 from the bottom side. At this time, the shaft portion 137 of the first shaft member 13 is inserted into shaft support holes 115, 115 formed in two opposing side walls of the box-shaped case 11.

Next, the coil spring 16 is inserted into the box-shaped case 11 from below the first shaft member 13. At this time, the upper end of the coil spring 16 engages with the spring receiving portion 132 of the first shaft member 13.

Next, the flat plate portion 123 of the operating lever 12 is inserted between the two protruding plates 145, 145 of the second shaft member 14. At this time, the projection 121 of the operating lever 12 projects downward from the elongated hole 143. The small holes 149, 149 of the second shaft member 14 and the operating lever 1
Insert the pin 148 into the hole 125 of No.2. As a result, the operating lever 12 is rotatably supported on the second shaft member 14. Then, the upper end of the operating lever 12 is inserted upward from the lower end side of the coil spring 16. Furthermore, the upper end of the operating lever 12 is connected to the elongated hole 133 of the first shaft member 13 and the hole 111 of the box-shaped case 11.
Also insert. And the shaft portion 1 of the second shaft member 14
46 are formed in the two opposing side walls on the side where the first shaft member 13 is not attached.
Insert into 5.

After that, the bottom plate 17 is fixed to the back surface of the box-shaped case 11 by the engaging claws 17a. At this time, the four tongue pieces 17b of the bottom plate 17 are connected to the box-shaped case 1, respectively.
1 and supports the shaft portions 137, 137 of the first shaft member 13 and the shaft portions 146, 146 of the second shaft member 14.

On the other hand, the substrate 151 is attached to one side wall 11a of the box-shaped case 11 by a guide protrusion 113 formed on the side wall 11a. At this time, the first
The locking pawl 139 of the shaft member 13 projects outward from the circular hole 151c. This locking claw 139 is then inserted into the hole 153c of the sliding body 153 to fix both. As a result, the slider 153b of the sliding body 153
is pressed onto the resistor pattern 151a of the substrate 151. When the first shaft member 13 rotates, the slider 153 also rotates, and the slider 15
3b slides on the resistor pattern 151a, and the resistance value between each metal terminal 151b changes.

Although not shown in Figure 1, the box-shaped case 1
A board 151' similar to the board 151 is attached to the side wall 11b of No. 1, and the circular hole 15 of the board 151' is
The locking pawl 14 of the second shaft member 14 protruding from 1c'
7 is engaged and fixed in a hole 153c' of a sliding body 153' similar to the aforementioned sliding body 153, thereby forming a rotary electronic component 15' similar to that described above. As a result, when the second shaft member 14 rotates, the rotary electronic component 15'
resistance value changes.

FIG. 4 is a perspective view showing the lever-equipped variable resistor 1 assembled in this way, and FIG.
The figure shows the operating lever 12, the first shaft member 13, and the second shaft member 13 when the lever-equipped variable resistor is viewed from above.
FIG. 3 is a diagram showing the relationship between the shaft member 14 and the rotary electronic components 15 and 15'.

Next, the operation of this lever-equipped variable resistor 1 will be explained.

FIG. 6 is a diagram showing the internal structure of this lever-equipped variable resistor 1 when operated.

FIG. 4A is a diagram showing the internal structure when the operating lever 12 shown in FIG. 4 is tilted in the direction A from the neutral position (a diagram cut in the direction of line C-C shown in FIG. 5).
As shown in the figure, the operating lever 12 is set to A
When the first shaft member 13 is tilted in the direction of the arrow A, the first shaft member 13 is tilted about the pin 148.
The sliding body 153 of the rotary electronic component 15 attached to the first shaft member 13 rotates, changing the resistance value of the rotary electronic component 15. At this time, the coil spring 16, the upper end of which is engaged and fixed to the first shaft member 13, is curved in the tilted direction by the rotation of the first shaft member 13.

When you release your hand from the operating lever 12, the first shaft member 13 returns to its original state due to the elastic force of the coil spring 16, and the operating lever 12 returns to its original vertically upward direction. It comes to a standstill.

Figure b is a view showing the internal structure when the operating lever 12 shown in Figure 4 is tilted from the neutral position in the direction B (a view taken when cut in the direction of line D-D shown in Figure 5).
It is. As shown in the figure, move the operating lever 12 to B.
When the second shaft member 14 is tilted in this direction, the second shaft member 14 is tilted around the center of the pin 148. As a result, the sliding body 153' of the rotary electronic component 15' attached to the second shaft member 14 rotates, and the resistance value of the rotary electronic component 15' changes. At this time, due to the rotation of the second shaft member 14, the coil spring 16 whose lower end is engaged and fixed to the second shaft member 14 is bent in the tilted direction.

When you release your hand from the operating lever 12, the second shaft member 14 returns to its original state due to the elastic force of the coil spring 16, and the operating lever 12 returns to its original vertically upward direction. It comes to a standstill.

In addition, in the above operation description, in order to make the explanation easier to understand, the case where the operation lever 12 is tilted in the A direction and the B direction is explained as an example, but the operation lever 1
2 may be tilted in any direction other than the A direction and the B direction. In this case, the first shaft member 13 and the second shaft member 14 will rotate together, but in either case, the coil spring 16 will be curved, so when you release your hand from the operating lever 12, The operating lever 12 remains stationary facing vertically upward.

Although one embodiment of the electronic component with a lever according to the present invention has been described in detail above, the present invention is not limited to this and various modifications are possible. For example, the rotary electronic components 15, 15' It may be attached to both ends of the first shaft member 13 and the second shaft member 14, respectively. Further, the present invention is not limited to the rotary variable resistor, and it goes without saying that other rotary electronic components such as a rotary switch may be attached.

That is, the point is that the first shaft member 13 and the second shaft member 1
4 are perpendicularly supported rotatably in the case, a coil spring 16 is disposed between the first shaft member 13 and the second shaft member 14, and the first shaft member 13 and the second shaft member 14 are
When either or both of the shaft members 14 are rotated by the operating lever, the first shaft member 13 and the second shaft member 1 are rotated by the elastic force of the coil spring 16.
Any electronic component may be used as long as it has a lever configured to return the device 4 to its original state.

[Effect of idea]

As explained in detail above, with the electronic component with a lever according to the present invention, a neutral point return mechanism for an operating lever can be constructed simply by forming spring bearings directly on the first and second shaft members and attaching a single coil spring to each of them. Therefore, the internal structure is simple, the number of parts is small (only one coil spring is required to return the operating lever), and assembly is easy and miniaturization is also possible.

Furthermore, according to the electronic component with a lever according to the present invention, the operating lever is returned to the neutral point by directly using the return force generated when the coil spring is deflected (curved) instead of compressing the coil spring. , the operating feeling of the operating lever is improved.

As mentioned above, the coil spring used in the present invention uses only the return force when it is bent (curved), so this coil spring is housed between the first and second shaft members. When assembled, this coil spring does not require any compression. Therefore,
From this point of view as well, the coil spring can be easily stored and assembled.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing a variable resistor with a lever using the present invention, and FIG. 2 is an exploded perspective view of the first shaft member 13.
Fig. 3 is a cross-sectional view of the center side in the longitudinal direction.
3. FIG. 4 is a perspective view of the assembled variable resistor with a lever. FIG. 5 is a view of the internal structure of the variable resistor with a lever seen from above.
The figure shows the internal structure of the lever-equipped variable resistor when it is operated, and FIG. 7 is a perspective view of a conventional lever-equipped variable resistor. In the figure, 1...variable resistor with lever, 11...
Box-shaped case, 12...operation lever, 13...first
133...elongated hole, 14... second shaft member, 15... rotary electronic component, 16... coil spring, 17... bottom plate.

Claims (1)

[Scope of Claim for Utility Model Registration] A case, an operating lever inserted into the case, both ends of which are rotatably supported within the case, and the operating lever passes through a hole formed approximately in the center of the case. and a first shaft member that rotates when the operating lever is swung; and a first shaft member that is disposed below the first shaft member such that both ends thereof are perpendicular to the rotation axis of the first shaft member. a second shaft member which is rotatably supported in a case, into which the operating lever is inserted substantially in the center thereof, and rotates when the operating lever is swung; and at least the first shaft member. and a rotary electronic component attached to one end of each of the second shaft members, wherein opposing surfaces of the first shaft member and the second shaft member are each directly provided with a spring. A receiving portion is provided between the two spring receiving portions, and the first and second shaft members are held at neutral points by resiliently moving the two spring receiving portions apart in the vertical direction. An electronic component with a lever, characterized in that a coil spring is housed therein, which bends when the member rotates from a neutral point, thereby applying a force to return the first and second shaft members to the neutral point.