JPH0517615Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of application of the invention] The present invention is an analog type indicating instrument, and more specifically relates to an indicating instrument configured to give instructions by waving a beam of light such as a laser beam. be.

[Background of the idea]

In general, an analog indicating instrument has a dial on which a scale is displayed, a pointer that indicates the scale on the dial, and a mechanical or electrical input that indicates the above pointer according to the quantity to be measured. It is composed of a movement that rotates by a predetermined angle.

By the way, in the case of such an analog indicating instrument, the pointer is supported and fixed in a cantilevered manner to the pointer shaft of the movement, so in order to make the pointer rotate smoothly, the pointer is fixed to the pointer shaft of the movement. A weight (protrusion) for balance adjustment must be provided at the rear end, which increases the weight of the entire pointer. In other words, if you try to make the pointer longer or thicker to make it easier to see the movement of the pointer, the weight of the pointer will increase, making it difficult to use a long pointer.
If one were to force the use of a minute hand, one would have to use a movement with a large drive torque capable of driving the pointer, which caused various problems such as the overall size of the instrument.

[Purpose of invention]

The present invention was developed with this in mind, and by using beam light such as a laser beam to indicate the amount to be measured on the scale of the display board, which is essential for analog indicating instruments, it is possible to By making it possible to perform analog display while omitting the pointer, it is possible to freely set the indicated length and indicated width without increasing the drive torque of the movement. It is an object of the present invention to provide a new indicating instrument capable of giving multiple indications by changing the indicated length of a pointer so that other measurements can also be performed using the indicated length.

[Example of idea]

The present invention will be explained in detail below based on embodiments shown in the drawings.

In the drawings, reference numeral 1 denotes a movement housed in an instrument case 2, and this movement 1 is provided with a rotating shaft that rotates by a predetermined angle according to the amount to be measured. The lower end of an arm 4 formed in a substantially U-shape is fixed, and a second reflecting mirror 5 is attached to the upper end of this arm 4. Reference numeral 6 denotes a first reflecting mirror arranged such that the center of its reflecting surface is located on the extension of the axis of the rotation axis, and this flat first reflecting mirror 6 emits light emitted from the laser oscillator 7. The second reflecting mirror 5 is arranged to reflect the laser beam 8 . Reference numeral 9 denotes a display plate made of transparent or semi-transparent resin formed into an annular disk, and a light diffusing agent dye is mixed inside the display plate 9.
A laser beam irradiated into the display board 9 from the side end surface of the display board 9 is emitted and displayed in the shape of a pseudo pointer within the display board. 10 is a shade applied to the back surface of the display board 9; 11 is a mask applied to the peripheral part of the surface of the display board 9; on this mask 11, a torque value 12 and a torque curve 13 are applied. Reference numeral 14 indicates a decorative cap that is attached to the center hole of the annular display plate 9.

Next, to describe its operation, when a signal corresponding to the amount to be measured is input to the movement 1, the rotating shaft 3 rotates by a predetermined angle in response to the input, and thereby the second reflecting mirror 5 rotates. It is rotated around the axial extension line of the shaft 3. At this time, the laser oscillator 7
The laser beam 8 emitted from the first reflecting mirror 6
When the laser beam is irradiated onto the second reflecting mirror 5 through the laser beam, the reflected laser beam reflected from the second reflecting mirror 5 is transmitted through the inside of the display panel 9 from the side surface of the display panel 9. Since the light diffusing agent dye mixed in the display plate 9 emits light, the laser beam irradiated to the display plate 9
is displayed in a linear manner in front of the pseudo pointer 15. As described above, by transmitting the laser beam into the inside of the display board 9, the pseudo pointer 15 is displayed over the entire length of the display board 9 in the radial direction. is provided with a mask 11 having a torque value 12 and a torque curve 13, so that the torque value can also be observed at the tip of the pseudo pointer 15 at the same time.

[Summary of the idea]

As described above, the present invention provides a movement 1 having a rotating shaft 3 that rotates by a predetermined angle according to the amount to be measured.
, a display plate 9 made of a transparent material mixed with a light diffusing agent and indicating the amount to be measured; a light source 7 that emits a beam-shaped light 8 ; and reflection optical means 5 and 6 for making light from the light source 7 incident from the side surface of the display panel 9 toward the display section, and the display panel 9
This indicator is characterized in that the surface thereof is provided with a curve 13 whose radius centered on the reflective optical means 5 and 6 changes in accordance with the indicated value.

[Effect of idea]

Therefore, according to the indicating instrument of this invention, it is possible to optically form a pseudo pointer, make the pseudo pointer 15 wave according to the measured quantity input to the movement, and read the indicated value on the display board. . Furthermore, since the length of the pseudo pointer 15 is changed according to the indicated value by the curve 13, other measured values can be observed even by changing the length, and a complex analog meter can be obtained. It also has the effect of being Furthermore, since the pseudo pointer 15 is displayed using a laser beam, the design at the time of display is excellent, and there is an effect that an analog type indicating instrument that breaks the common sense of conventional analog type indicating instruments can be provided.

[Brief explanation of the drawing]

FIG. 1 is a structural explanatory diagram showing an embodiment of an indicating instrument according to the present invention, and FIG. 2 is a plan explanatory diagram thereof. 1... Movement, 2... Instrument case, 3...
...Rotation axis, 4...Arm, 5...Second reflecting mirror,
5'... Concave reflecting mirror, 6... First reflecting mirror, 7...
... Laser oscillator, 8 ... Laser beam, 9 ... Display board, 10 ... Shade, 11 ... Mask, 12
... Torque value, 13 ... Torque curve, 14 ... Cosmetic cap, 15 ... Pseudo guideline.

Claims (1)

[Scope of utility model registration request] A movement 1 having a rotating shaft 3 that rotates by a predetermined angle according to the amount to be measured, and a display plate 9 made of a transparent material mixed with a light diffusing agent and indicating the amount to be measured.
a light source 7 that emits beam-shaped light 8; and a light source 7 that is provided on the rotating shaft 3 and rotates together with the rotating shaft 3, and the light from the light source 7 is incident from the side surface of the display panel 9 toward the display section. It is characterized by comprising reflective optical means 5 and 6 that act as a guide, and a curved line 13 whose radius centered on the reflective optical means 5 and 6 changes in accordance with the indicated value is formed on the surface of the display plate 9. An indicating instrument.