JPS5848699Y2 - display device - Google Patents

Description

[Detailed description of the invention] This invention relates to display devices used in watches, etc.
In particular, the aim is to reduce the thickness of large numeric display devices, such as numeric display clocks that are mounted on the walls of buildings, and to enable them to be driven by a common drive source for multiple digit displays.

Large numeric display devices for walls generally have a plurality of through holes formed in an approximately S-shaped arrangement in a light-shielding plate, and these through holes are blocked with a color filter element made of a colored acrylic plate, and the through holes are placed behind it. A light source is installed behind the light source, and the light from the light source is switched between a light-shielding state and a non-light-shielding state. By appropriately combining the positions of the holes, the numbers 0 to 9 are displayed.

Therefore, display in conventional display devices of this type is performed by transmitting light from an internally installed light source through color filter elements.

By the way, the light reflected from the color filter element itself also has a color component. That is, for example, the light transmitted through a green acrylic plate appears as green, and the reflected light also appears as green.

For this reason, in this type of display device, a black acrylic plate called smoked glass, for example, is fitted in front of the display surface to prevent light from hitting the display surface from the outside.

However, when the smoked glass is fitted, the light from the light source becomes weaker, and furthermore, when exposed to direct sunlight, the color filter elements in the closed portion of the shirt cover will also appear bright, leading to the risk of misreading the display.

For this reason, it is necessary to use a built-in light source that is quite bright.

For this purpose, first a shutter plate is placed behind the transparent hole formed in the light shielding plate, and a display board with a display color such as a color filter element or a color reflective element is installed behind the shutter plate, and the front side of the display board is It is conceivable to configure it so that it can be opened and closed directly using a shirt top plate.

According to this configuration, the brighter the outside, the better the display can be seen, and even when it is dark, if a light source is provided on the back side of the display board, the display can be displayed using the transmitted light.

FIG. 1 shows an example of the display device viewed from the front.

In the figure, reference numeral 1 denotes a light-shielding plate made of, for example, an iron plate, and the light-shielding plate 1 has a plurality of through holes formed in the shape of a.

In this example, seven through holes 2a, 2b, 2C, 2d, 2
The case where e, 2f, and 2g are formed is shown.

Behind these through holes 2a to 2g, as shown in FIG. 2, a plurality of shutter plates 3 are provided which can open and close the through holes 2a to 2g in each row, and a display color is attached to the back of the shirt shirt plates 3. A display board 4 is arranged.

The display plate 4 may be a light-shielding plate that displays colors only by reflection, or may be a light-transmissive color filter element.

When a light-transmissive color filter element is used, display can be performed even at night by arranging a light source 5 behind the display panel 3 as shown.

The conventional opening/closing mechanism of the shirt flap plate 3 is, for example, each shirt flap plate 3.
Each of the through holes 2a to 2g can be opened and closed individually by connecting one side of the shirt flap plate 3 to the light shielding plate 1 with a butterfly plate and rotating the direction of the plate surface with respect to the light shielding plate 1, for example, by an electromagnetic actuator. It has a structure that allows

In this way, if each shirt plate is opened and closed by an electromagnetic actuator individually, the angle will be 0.1°2.3...
... Control signals for displaying each digit such as 9 must be prepared in advance in the control device, and the control signal must be extracted as necessary to display the desired digit.

This has the disadvantage that the control device becomes complicated.

The purpose of this invention is to simplify the control mechanism for changing the display on the display, drive multiple displays with a single drive source, simplify the drive mechanism, and provide a display that can be expected to reduce overall costs. This is what I am trying to do.

FIG. 3 shows an embodiment of the display device used in this invention.

In the figure, reference numeral 1 denotes a light-shielding plate, and as described above, the light-shielding plate 1 is provided with through holes 2a to 2g in a single shape.

3a to 3g indicate shirt flap plates that open and close the through holes 2a to 2g, respectively.

In the illustrated example, the shutter plates 3b, 3C, 3f, and 3g are controlled to be open, and the corresponding through holes 2b, 2C, 2f, and 2g are opened to display the number 4.

The shirt flap plates 3a to 3g are configured to move along the surface of the light shielding plate 1, so that the shirt flap plates 3a to 3g can be moved without increasing the distance between the shirt flap plates 3a to 3g and the color display plate 4.
3g, each of the through holes 2a to 2g can be opened and closed.

For this reason, all other shirt plates 3 except shirt plate 3g
a to 3f are respectively connected to the light-shielding plates 1 by a pair of levers 6.
It is supported on the back side of the light-shielding plate 1 and is attached so as to be able to move in parallel along the plate surface of the light-shielding plate 1.

In other words, the shutter plates 3b, 3C, 3e, and 3f that open and close vertically long through holes such as the through holes 2b, 2C, 2f, and 2f are attached so that they can be moved left and right along the surface of the light-shielding plate, and can be moved up and down. Shirt cover plates 3a and 3d, which open and close the through holes 2a and 2d constituting the horizontal bar, are mounted so as to move up and down.

The shirt flap plate 3g is composed of two shirt flap plates in which the shape of the transparent hole 2g is almost diagonally divided into two parts. Rods 9 and 10 attached to the ends and configured to move in opposite directions are rotated and biased to open and close the through hole 2g.

Each of these shirt plates 3 a , 3 b , 3 C, 3 e
A spring 11 is attached to each lever 6 or 7 and 8 supporting the levers 6, 3f, 3g, and the spring 11 moves the shirt flap plate 3a in the opening direction, and the other shirt flap plates 3b, 3C.
, 3e, 3f, and 3g are always biased in the closing direction.

A pin 12 is installed in the levers 6 and 8, and this pin 12
A roller is attached as necessary to the roller, and this roller is brought into pressure contact with the cam surface of the opening/closing control cam 13, and the unevenness of the cam 13 rotates the levers 6, 8 against the biasing force of the spring 11, thereby rotating each shirt. Plate 3 a, 3 b, 3 C, 3e, 3
Open and close fb3g.

Note that the shirt flap plate 3d does not use the biasing force of a spring, but uses its own weight to force the lever 6 onto the cam surface of the cam 13.
The roller attached to the roller is pressed into contact with the roller.

In this way, a number of cams 13 corresponding to the number of through holes 2a to 2g, that is, seven in this example, are attached to the back side of the light shielding plate 1, surrounding the through holes 2a to 2g arranged and formed in type 1. It will be done.

The seven cams 13 are rotated in conjunction with each other.

For example, to display 0, 1.2...9, the circumference of each cam 13 is divided into 10 equal parts, and the open and closed states are indicated on the cam surface at each angular position of the 10 equal parts. Program by unevenness.

In this example, the cam 13 that opens and closes the shutter plates 3b, 3C, 3e, 3f, and 3g has a convex cam surface that biases the shutter plate to the open position, and a concave cam surface that biases the shutter plate to the closed position. This shows a case in which the shirt top plate 2a
and 2d are controlled to be closed when the cam surface is convex and open when the cam surface is concave.

Therefore, when the number 4 is displayed as shown in the figure, the shutter plates 3a and 3b.

The cam 13 that opens and closes 3C, 3d, 3f, and 3g has a roller pressed in a convex position, and the cam 1 that opens and closes the shirt flap plate 3e.
Only the roller 3 is pressed into the concave position.

In this way, by rotating each cam plate 13 by, for example, 1/10 pitch, it is possible to display 0, 1.2, . . . , 9.

As a means for rotating the cams 13 in conjunction with each other, for example, pins 14 are installed at the same angular position on each cam plate 13, and the cams 13 are all linked together by the pins 14.

For this purpose, a hole 16 is formed on the periphery of the frame-like plate 15 into which the pin 14 is inserted. By inserting each pin 14 into this hole 16, all the cams 13 can be linked together. When rotational force is applied to one of the cams 13, all the cams 13 can be driven in conjunction with each other via the frame plate 15.

As a means for driving the cam 13, for example, a motor can be used.

A rod 19 is linked to the output shaft 18 of the motor 17, and a claw formed at the tip of the rod 19 intermittently drives a disk 20 with, for example, four pins, one quarter pitch at a time. .

The output shaft 18 of the motor 17 rotates once every time the motor is started and then stops.

Therefore, the disc 20 is driven by 1/4 pitch each time the motor 17 is started, and the pinion 21, which rotates integrally with the disc 20, is rotated by 1/4 pitch.

The pinion 21 meshes with the large gear 22, and the drive of the pinion 21 causes the large gear 22 to rotate 1/2 every time the motor 17 is started.
It is driven 10 pitches at a time.

The shaft of the large gear 22 is mounted on the same axis as one of the cams 13, and the pin 14 set on the cam 13 is attached to the frame plate 15.
When the large gear 22 is driven by 1/10 pitch, all the cams 1
3 is driven by 1/10 pitch and becomes 0, 1.2...9
are displayed sequentially.

When this display device is applied to a watch, for example, the minute digit display needs to display 0.1.2...9.

Therefore, when displaying the quantiles, the cam 1 is used as explained in Figure 3.
3, the unevenness of the cam surface is programmed in 1/10 pitch angle increments.

Every time one minute passes, the motor 17 is activated and the display state is incremented.

Also, for the 10 minute display, 0, 1.2...5,
Since it is only necessary to display 6, the periphery of the cam 13 is divided into 1/7 pitches, and each 1/7 pitch is 0.1, 2, . ...
...Program the cam surface to display 5 and 6.

The 10th minute display generates a digit output when the quantile display changes from displaying 9 to displaying 0, and that digit output causes the 10th minute display to Start the driving motor.

For example, on a special color display, 1.
2.3... Form irregularities to display 9, 0, 1.2 and program the display order.

The shape of the cam 13 may be formed to display O and 1 or 0.1.2 at the 10 o'clock digit.

For example, as a method for driving a four-digit display like a clock, a drive motor can be provided for each digit as described above, and the drive motor for each digit can be activated by the output signal for each digit. In this case, a plurality of digit display devices are driven by one motor.

FIG. 4 shows an embodiment of this invention.

In FIG. 4, reference numerals 25, 26, 27, and 28 indicate indicators as described above.

In other words, 25 is a 1-minute digit display, 26 is a 10-minute digit display, 27 is a special feature digit display, and 28 is a 10 o'clock digit display. seen from behind.

A common rod 29 is assigned to each display 25-27.

This rod 29 is intermittently moved back and forth, for example, by one motor 30, for example, so as to make one reciprocation every minute.

Reference numerals 31, 32, and 33 are discs for driving rotary input shafts that change the display of each display 25, 26, and 27.

For example, pins 34 are installed as retaining means on the discs 31, 32, 33 at intervals of the rotation angle pitch of the cam 13.

The rotation angle pitch of the cam 13 in each display 25, 26, and 27.The display 25 has a pitch of 1/10, and the display 26 has a pitch of 1/10.
/7 pitch and 1/13 pitch for the display 27, respectively.

Therefore, the reciprocating movement of the rod 29 causes each disc 31, 3 to
In order to drive 2.33, a movement amount conversion means is required to convert the stroke into a stroke corresponding to the rotation angle pitch of each disc 31, 32.33.

In this example, the pivot positions of levers 35, 36, 37, one end of which is connected to the rod 29, are varied to obtain a driving force of a stroke corresponding to the rotation pitch of each disc 31, 32, 33 as a movement amount converting means. Here is a case where it is done like this.

Each disk 31.32 is connected to a lever 35, 36.37.
．． A lever 3 having a claw that engages with a pin 34 set in 33.
8.39.40, the pawl of the lever 38 is always engaged with the pin 34 and drives the display of about 1 minute each time the rod 29 reciprocates.

The levers 39, 40 constituting the coupling means are normally kept in an uncoupled state.

In other words, it is separated from the pin 34, and is controlled to be in a connected state by the beam output from the lower girder.

To control this connected state, for example, although not particularly shown, an electromagnetic plunger or the like is actuated, and the levers 39 and 33 are engaged with the pin 34 by the driving part of the electromagnetic plunger, and the display changes for about 10 minutes in synchronization with the display conversion of about 1 minute. and change the display of spot colors.

The display 28 at around 10 o'clock changes from 0 → 1 → 2 → 0 → 1 → 2 or 0 → every 12 hours in conjunction with the operation of the display 27.
It is changed like 1 → O → 1.

Another method of changing the movement of the common rod 29 to a stroke suitable for each display is to change the pivot positions of the levers 35, 36, 37, and the like, for example, by changing the positions of the fulcrums of the levers 35, 36, 37, and the like, as shown in FIG. There is also a method of making the diameter of 33 different.

In this case, unlike the embodiment shown in FIG. 4, the levers 35, 36, and 37 are not required, and the levers 38, 39 simply engage with the pin 34 to drive it.

40 can be directly attached to the rod 29, and the structure can be simplified.

The operation of the levers 38 and 39.40 is similar to that of the embodiment shown in FIG. 4. The levers 39.40 are normally disengaged from the pin 34, and are brought into engagement by the girder output from the lower girder. Ru.

As explained above, according to this invention, it is possible to drive a plurality of display devices 25, 26, 27 with different rotation angle pitches of the rotary input shafts for changing the display by a single drive source. The structure of the section can be simplified.

Therefore, overall cost reduction can be expected.

Although the display device according to the present invention has been described above as an example of application to a watch, other applications may be widely considered.

It is also easy to understand that it is not limited to numbers, but can also display part of the alphabet, for example, and is not limited to numbers.

[Brief explanation of drawings]

FIG. 1 is a front view showing an example of a suitable display device to which this invention is applied, FIG. 2 is a sectional view taken along line A-A in FIG. 1, and FIG.
The figure is a perspective view to explain the display used in this invention.
FIG. 4 is a rear view showing one embodiment of this invention, and FIG. 5 is a rear view showing another example of this invention. 1: Light shielding plate, 2a to 2g: Through hole, 3, 3a to 3g: Shaft plate, 6, 7.8 Nilever, 13: Cam, 15:
Frame plate that interlocks the cam, 25, 26. 27: Display, 29: Rod.

Claims (1)

[Claims for Utility Model Registration] A, A: A light-shielding plate having eight-shaped through holes formed therein, and a lever on the back side of the through-holes so that the light-shielding plate can be moved in a direction parallel to the surface of the light-shielding plate. a plurality of supported shirt flap plates, a spring for biasing each of the shirt flap plates in one direction, and operating the shirt flap plates to an open or closed position with respect to each of the through holes against the biasing force of the spring; and a connecting means for connecting the plurality of rotary cams to one rotary input shaft. Display device and O~
A display that displays 6 or a plurality of displays that display 0, 1, or 0, 1.2, and B. The rotation pitch of the rotation cam of each display that is attached to the rotation input shaft of each of these indicators. A disc in which engaging means are arranged at a pitch corresponding to C1, one rod arranged along this disc and reciprocating when the display needs to be changed, and D, this one rod and the above. a coupling means provided between the disc retaining means attached to the rotational input shaft of each display device and driving each of the rotational input shafts by one pitch by one reciprocating movement of the rod; means for controlling the uncoupled and coupled states as necessary; F. movement amount converting means for converting the reciprocating movement of the rod into a movement amount corresponding to one rotation pitch of the rotational input shaft of each of the indicators; A display device equipped with