JPS6137058Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an operation lever assembly structure in which a plurality of operation levers assembled to a support shaft obliquely fixed to an apparatus base can be operated in a horizontal direction.

For design or function reasons, it may be effective to arrange a plurality of operating levers for switches or the like in diagonal multiple stages.

Such operating levers are generally attached to a support shaft orthogonal to each lever.

FIG. 1 shows this type of assembly structure, in which bearing portions 1a, 2a, 3a of operating levers 1, 2, 3 are rotatably attached to a support shaft 5 fixed to a device base 4. As shown in FIG. According to this assembly structure, each lever can swing freely in the horizontal direction (perpendicular to the plane of the paper); however, since the operating strokes of each lever are different, operability is not necessarily good.

FIG. 2 is a cross-sectional view taken along line A-A in FIG.
A dashed dotted line P indicates the operating position of each lever. As you can see from this diagram, the operating stroke of each lever
l ₁ , l ₂ , and l ₃ have the relationship l ₁ < l ₂ < l ₃ . Therefore, in such operating levers, the lever 2 requires a larger operating force than the lever 3, and the lever 1 requires an even larger operating force than the lever 2.

From this, for example, if lever 3 is set to an appropriate operating force, operating levers 2 and 1 will become difficult; is too light. Such an imbalance in the operating force is a problem that similarly occurs even if the operating force of the lever 2 is set appropriately. However, in the above-described assembly structure, even if the operating force of any operating lever is appropriately set, the operating force will be unbalanced as described above, which is not preferable in terms of the structure. In addition,
In FIG. 2, 1b is an interlocking section.

Figure 3 shows an example in which the levers 1, 2, and 3 are attached to a support shaft 5 that is fixed diagonally, but although this structure makes the operating stroke of each lever the same, horizontal operation becomes impossible. , same as above, the operability is not good. On the other hand, according to this example, when the operation position of each lever is viewed from the front, the lower part of the lever is at the positions Q, R, and S shown in the figure, so the assembly interval of each lever is increased. There is a need. FIG. 4 shows an example in which each of the levers 1, 2, and 3 is provided with supporting shafts 5a, 5b, and 5c perpendicular to these levers. In this assembly structure, the support shafts 5a, 5b, which correspond to the operation levers 1, 2, 3,
5c is required, which increases the number of parts and complicates assembly work such as adjustment when the lever is misaligned.

The present invention was developed in view of the above-mentioned circumstances, and in an assembly structure in which a plurality of operating levers are assembled diagonally in multiple stages, the shaft hole of each lever provided on the rotation center line of each operating lever is inserted into the hole. The shaft hole is enlarged toward the shaft hole, and the peripheral surface of the shaft hole is formed to be perpendicular to the rotation center line, so that the shaft hole of each lever is communicated with the lever support surface that is joined and held to the peripheral surface of the shaft hole of each operating lever. We propose an operating lever assembly structure in which the plurality of operating levers described above are assembled to a device base provided with an inclined support shaft.

An embodiment of the present invention will be described below.

FIG. 5 is a front view of a switch device embodying the present invention, FIG. 6 is a partially cutaway front view of the switch device, and FIG. 7 is a sectional view taken along the line B--B in FIG. 6.

In these figures, 6, 7, and 8 are operating levers of the same shape, and the front side of these operating parts is the fifth one.
As shown in the figure and FIG. 6, they are aligned diagonally. 9 is a device base, which is separated into three stages by two horizontal partition plates 10 and 11;
In addition, a support piece 12 protruding from a portion between each stage,
13 and 14 are provided parallel to the horizontal partition plates 10 and 11. 15 is press-fitted from above the device base 9, and the horizontal partition plates 10, 11 and the support pieces 12, 13,
14, and is fixed to the device base 9 in an inclined state as shown in the figure.

The bearing portion 6a of the operation lever 6 described above is located between the upper plate of the device base 9 and the support piece 12, and the bearing portion 7a of the operation lever 7 is similarly placed between the horizontal partition plate 10 and the support piece 13. A support shaft 1 is provided between the horizontal partition plate 11 and the support piece 14 on the bearing portion 8a of the operation lever 8.
5 is attached to the shaft.

These operating levers 6, 7, and 8 are rotatably mounted on shafts, but a return mechanism is added so that they always return to predetermined positions.

FIG. 7 shows each member related to the operating lever 8, and as shown in this figure, the above-mentioned return mechanism includes a torsion coil spring 16 wound around the bearing portion 8a, and a torsion coil spring 16 that is attached to the operating lever 8. A fixing pin 18a protruding from the pin 17 and the horizontal partition plate 11,
18b, and the operating lever 8 is normally located at the position shown by the solid line in the figure. It is interlocked with a switch 19 that is turned on when the control lever 8 is moved to the position shown by the two-dot chain line below, and turned off when it is moved to the upper position shown by the two-dot chain line. A pin 8b provided on the operating lever 8 is for interlocking the switch 19.

By pressing the switch 19 in the direction of the arrow shown in the figure, the fitting parts 19a and 19b provided on both sides of the switch 19 can be opened.
fixing protrusions 9a, 9 protruding from the device base 9
b and can be fixed with one touch.

Note that the above-mentioned configuration regarding the return mechanism and the switch 19 is similar to the configuration for the operation levers 6 and 7, and the operation lever 6 is connected to the switch 20 by the interlocking pin 6b, and the operation lever 7 is connected to the switch 20 by the interlocking pin 7b. The switches 21 are operated by the respective switches. (See Figure 6) Now, each of the levers 6, 7, 8 assembled as described above has its bearing portion 6a, 7a, 8a in the eighth position.
The structure is shown in enlarged views in FIG. 9 and FIG. Although this enlarged view shows only the bearing portion 6a, the bearing portions 7a and 8a have the same structure.

As shown in these figures, the bearing part 6a consists of a convex part _6a1 formed on the rotation center line of the operating lever 6 and a shaft hole _6a2 , but the upper and lower surfaces of the convex part _6a1 are The surface is formed to be perpendicular to the rotation center line, and the shaft hole 6a ₂ is enlarged toward the hole opening to form an hourglass shape.

Each of the operating levers 6, 7, 8 of this embodiment has a bearing portion having the above-described structure, and from this, the support shaft 1
Although lever 5 is fixed diagonally, each lever 6, 7, 8 can swing freely in the horizontal direction (perpendicular to the plane of the paper in FIGS. 5 and 6).

On the other hand, a fifth
Display sections 22, 23, as shown in FIG.
24 (also a display board), and these indicators can be used to distinguish between operating levers or to display the state of lever operation.

In addition, in the above-mentioned switch device, the operating levers 6, 7, and 8 are operated to two positions before and after the normal position, but the operating mode required depending on the switch may be such that the operating lever is structured to be operated to one of the normal positions. The same procedure can be applied to the operating lever operated by .

Furthermore, the present invention can be implemented as an assembly structure for operating levers provided not only in switch devices but also in various devices.

As mentioned above, in the assembly structure of the present invention, the shaft hole of the operating lever is enlarged toward the hole opening, and the upper and lower surfaces of the bearing portion of the operating lever are configured to be in horizontal surface contact with the device base. By connecting the shaft holes of the plurality of operating levers through one support shaft, the respective operating levers are arranged diagonally in multiple stages, and each of these levers can swing freely in the horizontal direction. In this invention, by configuring a plurality of operating levers of the same shape to be attached, each lever can be made to have the same operating stroke. There is no need to treat them separately and there is no hassle.

Furthermore, because the operating levers swing horizontally, the distance between the levers can be reduced to a minimum, and the structure allows multiple operating levers to be commonly assembled using a single support shaft, making assembly work easier. It becomes easy.

[Brief explanation of drawings]

1 to 4 show a conventional assembly structure of a plurality of operating levers arranged in a diagonal direction, FIG. 1 shows an assembly structure using a support shaft perpendicular to the operating levers, and FIG. The figure is a sectional view taken along line A-A in Figure 1, and Figure 3.
The figure shows an assembly structure using inclined support shafts, FIG. 4 shows an assembly structure using orthogonal support shafts for each operating lever, and FIG. 5 shows a switch device in which the present invention is implemented. 6 is a partially cutaway front view of the switch device, FIG. 7 is a sectional view taken along line B-B in FIG. 6, and FIG. 8 is an enlarged view of the bearing portion of the operating lever according to the present invention. The plan view shown in Fig. 9 is C- on Fig. 8.
It is a sectional view taken along line C. 6, 7, 8...operation lever, 6a, 7a, 8a
... Bearing part, 6a ₁ ... Convex part, 6a ₂ ... Shaft hole, 9
...Device base, 10, 11...Horizontal partition plate, 12,
13, 14... Support piece, 15... Support shaft.

Claims (1)

[Scope of utility model registration request] In an assembly structure in which a plurality of operating levers are assembled diagonally in multiple stages, the shaft hole of each lever provided on the rotation center line of each operating lever is enlarged toward the hole opening, and the peripheral surface of the opening of this shaft hole is A plurality of the above-mentioned devices are attached to the device base, which is formed perpendicularly to the rotation center line, and has a lever support surface that connects and holds the peripheral surface of the hole of each operating lever, and an inclined support shaft that communicates the shaft hole of each lever. An operating lever assembly structure consisting of an assembled operating lever.