JPH0467610B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a dial setting device for a dial-type controller that sets the dial of the controller to any desired setting value.

[Conventional technology]

Conventionally, a controller generally used to control the temperature or the like on the controlled side to a predetermined set value has a setting section for setting a desired set value;
It has an instruction section for instructing the temperature of the controlled side, etc., and has a function of controlling the controlled side so that the instruction value matches the set value. In addition to a meter such as an Edgewise meter, the indicating section also uses a digital display, but the setting section consists of a setting device such as a potentiometer and a device attached to the rotating shaft of this setting device. It consists of a dial and a display means for displaying the rotation angle of the dial, and the display means generally consists of a scale formed on a front mask and an index provided on the dial so as to move on the scale.

With conventional dial-type controllers, workers turn a dial and use their eyes to set a predetermined setting value. However, when there are two or more set points, there is a demand for sequentially selecting and using these set points. For example, if this dial type controller is a temperature controller, 50℃ → 100℃ → 150℃ → 100℃
This is a method of using a set point such as ℃ → 50℃.
Conventionally, in response to such usage requests, each worker had to set the dial using his or her eyes, which caused a great deal of trouble and inconvenience in use.

[Summary of the invention]

This invention was made to solve the above-mentioned drawbacks, and it is possible to easily and reliably set any desired setting point of the dial without using the eyes, and is particularly suitable for use where multiple setting points are required. It is an object of the present invention to provide a dial setting device for a dial type controller that is extremely convenient.

[Example of the present invention]

Next, one embodiment of the present invention will be described.
In FIG. 1 showing the front side of the controller of this invention,
Reference numeral 1 designates a front panel, and on the front surface of the front panel 1, a setting section 4 consisting of a dial 2 and a scale plate 3 for displaying the rotation angle of the dial 2 is provided. Reference numeral 5 indicates an indicator consisting of an edgewise meter (which may be a digital display). The controller in this example is a temperature controller that has a setting range of 0°C to 200°C, and in order to click-stop the dial 2 at any position within this setting range, the pointer 6 and the pointer locking part 7 are used. is provided. The dial 2 is fixed to the tip of the rotating shaft of a potentiometer (setting device), and has a knob 8 in the center as shown in FIG.
As shown in FIGS. 2 and 3, an outer peripheral edge 9 to which the pointer 6 is engaged and a tapered fixing portion 10 are formed to firmly perform the stopper function of a locking mechanism 14, which will be described later. By rotating this dial 2, a temperature setting corresponding to the position of the indicator 11 with respect to the scale of the scale plate 3 is performed.

As shown in FIGS. 2 to 5, the pointer 6 includes a pointer body 12 and a pointer body 1.
2 to the dial 2, and a lever 13 for fixing the dial 2 to the dial 2. By engaging with the pointer locking part 7, which is disposed close to the outer peripheral edge of the dial 2 and fixed to the front panel 1, the dial can be fixed to the dial 2. 2 can be set at a predetermined setting position.

As shown in FIGS. 2 and 3, the pointer main body 12 is engaged so as to be movable along the outer circumferential edge 9 of the dial 2 so as to straddle the outer circumferential edge 9. As shown in FIG. 1, this pointer body 12 engages with the outer peripheral edge 9 through a notch 2a formed in the outer peripheral edge of the dial 2, and once engaged, the pointer main body 12 engages with the outer peripheral edge 9 as shown in FIG. As shown in Figure 3, the pointer body 12
It will not easily fall off due to the bent portion 12a.

Note that since the pointer body 12 itself is made of an elastic material, it can be engaged with the dial 2 even without the cutout 2a. As will be described later, the outer wall surface of the pointer body 6 has a convex portion 12b that engages with the recess 7a of the pointer locking portion 7, and the lever 13 is provided in the intermediate portion.
A long hole 12 protrudes from which the operating portion 13a can be rotated.
c, and lever 13 as shown in FIGS. 2 and 5.
A bridge 12d is formed to apply a locking force to the.

As shown in FIGS. 2 to 4 and 6, the lever 13 consists of an operating portion 13a and an elliptical portion 13b integrally formed therewith, as shown by arrow A in FIG. Although it is inserted into the pointer body 12, it does not fall off from the pointer body 12 because the claw portion 13c is provided protrudingly from a part of the operation portion 13a.

Therefore, when the lever 13 is in the first state, that is, in the raised state, as shown in FIG. It is now possible to move along the

Next, as shown in FIG.
state, that is, when tilted counterclockwise, lever 13
The elliptical portion 13b is pressed in the direction of arrow B by the elastic force of the bridge 12d, and the inner wall surface of the pointer body 12 is pressed in the direction of arrow C.
The pointer 6 is firmly fixed to the dial 2.

The pointer locking portion 7 is fixed to the front panel 1, as shown in FIGS. 1, 7, and 8, and has the above-mentioned recess 7a formed in a portion thereof. A locking mechanism 14 for locking the dial 2 is also formed on the pointer locking portion 7. As shown in FIGS. 7 and 8, this locking mechanism 14 has a screw 15 that is screwed through a part of the pointer locking portion 7, and is moved in the vertical direction by tightening and releasing the screw 15. U-shaped stopper 16
The forked portion at the tip of this stopper 16 abuts against and presses the tapered fixing portion 10 of the dial 2, thereby firmly locking the dial 2.

Next, the operation of this invention will be explained.

First, the dial 2 is rotated with the pointer 6 fixed to the dial 2 (see FIG. 2), and as shown in FIG. Raise the lever 13 at the engaged position to release the fixed state (see Figure 3).

In this state, since the pointer 6 is locked and fixed in the groove 7a of the pointer locking part 7,
Turn only dial 2 as shown in the figure to align the pointer with the set point scale.

Next, the lever 13 of the pointer 6 is pushed down to fix the pointer 6 to the dial 2 again.

If you turn the dial 2 with the pointer 6 fixed in this way, the pointer 6 will always be locked and fixed at the pointer locking part 7 at the predetermined setting position as shown in FIG. Dial 2 can be easily and reliably set without the need for .

If multiple set points of the dial 2 are required, repeat the above operation to fix an arbitrary number of pointers 6 to the dial 2, and then move the dial 2 from the first set point according to the setting program. If the dial 2 is turned sequentially, the dial 2 can be click-stopped at each predetermined set value to indicate the set point.

Furthermore, when it is desired to completely lock the dial 2, by tightening the screw 15 of the locking mechanism 14, a stable pressing force is applied by the U-shaped stopper 16, and the wedge effect of the tapered fixing part 10 ensures a secure locking. can be locked, and this locking can be done independently of pointer 6.

In the above embodiment, the pointer 6 and the pointer locking part 7 are engaged with each other by the convex part 12b of the pointer 6 and the concave part 7a of the pointer locking part 7, but the concave part and the convex part may be reversed. Furthermore, any means may be used as long as it can be engaged reliably.

〔effect〕

As described above, according to the present invention, at least one pointer whose fixed position can be selected is provided on the dial, and the pointer, which is fixed at a predetermined position on the dial and moves together with the dial, is locked by the pointer locking part. Since the dial can be set to a desired setting point, the dial can be easily and reliably set to the desired setting value without much manual effort or inconvenience in use. It is extremely convenient, especially for applications where multiple set points are required.

[Brief explanation of the drawing]

Fig. 1 is a front view of a controller to which an embodiment of the present invention is applied, Fig. 2 is an illustration of the pointer in its free state, Fig. 3 is an illustration of its fixed state, and Fig. 4 is a side view of the pointer. 5 is a partially cutaway side view of the same, FIG. 6 is a front view of the lever, FIG. 7 is a plan view of the pointer locking portion, FIG. 8 is a longitudinal sectional view of the same, and FIGS. 9 to 11 are views of the present invention. An operation explanatory diagram is shown. DESCRIPTION OF SYMBOLS 1... Front panel, 2... Dial, 6... Pointer, 7... Pointer locking part, 12... Pointer main body, 13... Lever, 13b... Oval shaped part.

Claims (1)

[Scope of Claims] 1. A dial connected to a setting device of a controller that sets a desired setting value on the controlled side, and a dial that is attached to this dial so that a fixed position can be selected, and that the dial is set at a predetermined setting position. and a pointer locking portion that is disposed close to the outer peripheral edge of the dial, is fixed to the front panel, and further engages with and locks the pointer. Dial setting device for dial type controllers. 2. The pointer includes a pointer body movably engaged with the dial, and a lever having an elliptical part interposed between the pointer body and the dial. allows the pointer to move relative to the dial in a first state of the lever, and in a second state of the lever,
Claim 1, characterized in that the pointer is formed in a positional relationship in which the pointer is fixed at an arbitrary position on the dial by an elastic force generated between the elliptical upper part and the pointer body. Dial setting device for dial type controller.