JP2000122576A - Color display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily change a mask width by providing an attachable and detachable means which easily fixes the mask which exposes a desired display color among the colors separately painted on a color displaying body and covers adjacent unnecessary colors, to a base plate in an easily mounting manner. SOLUTION: The rotating axial center of a color displaying body 36, on which a cylindrical surface is separately painted with many colors, is located on a rotary shaft 36a which is integrally formed at the inner side central section of the body 36. The bottom tip section of the shaft 36a goes through a through- hole 28a of a stator frame 28, fits into a hole 32 made on a base plate 10 and is supported in a freely rotative manner. The body 36 is arranged to cover magnetic shafts 12, coil bobbins 16, coils 18a to 18d, stators 24a to 24d and the frame 28. A rotary body 37 rotates at a designated angle when a driving signal of a stepping motor is applied from coil terminals 20, a designated color is exposed through a mask 11 fixed to a connection hole 39 of the plate 10 and the color of the body 36 is displayed to a display direction. Connection holes 39 are provided as a detachable and attachable means for the plate 10 and the mask 11 so that the plate 10 is engaged and fitted to the mask 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a screen comprising a plurality of color display elements each having a step motor attached to a multi-colored color display, and rotating and stopping the color display of the step motor. By changing the displayed color,
The present invention relates to a color display device that switches information such as characters and pictures at several tens of frames per second and displays the information as a moving image.

[0002]

2. Description of the Related Art The applicant of the present invention has previously filed Japanese Patent Application No. 4-35.
No. 9851 (JP-A-6-202569) has proposed a color display element. FIG. 8 is an exploded perspective view of a conventional color display element. The magnetic cores 102 are press-fitted into the base plate 100, the coil bobbins 106 are arranged on the respective magnetic cores 102, and the coils 108 are wound around the surfaces of the coil bobbins 106. Magnetic core 1
Stators 114 are connected to the upper ends of the stators 02, respectively, and are separated from each other by providing a stator gap 116 which is a gap between the stators 114. A magnet 128 is provided in the concave portion 126b of the color display body 126 in which the cylindrical surface is painted in multiple colors.
Is provided, and a rotating shaft 126a is provided therebelow to form a rotating body 127. The lower end of the rotating shaft 126a passes through the through hole 118a of the stator frame 118 that holds the stator 114, and is rotatably supported in a hole 122 formed in the main plate 100. The color indicator 126 is arranged so as to cover the magnetic core 102, the coil bobbin 106, the coil 108, the stator 114, and the stator frame 118, thereby forming a step motor. Further, a mask 100a that covers a color other than the color facing the display direction is formed by bending a part of the base plate 100 vertically, and the color is displayed from between the masks 100a.

[0003]

In the above-mentioned conventional color display device, (1) when a color display body having a different number of paint colors is used, the number of paint colors of the color display body is reduced. The width of the mask must be changed correspondingly, but since the width of the mask is composed of the ground plate bent, the width of the mask can not be changed unless the ground plate is new, so the color display body The number of paint colors could not be changed during the assembly process. (2) The mask is related to the aesthetic appearance of the display, and it is necessary to make the surface black or another color, or to have a rust-preventive function. Must be expensive. (3) Since the mask uses a part of the magnetic base plate, the magnetic leakage of the step motor is adversely affected. SUMMARY OF THE INVENTION It is an object of the present invention to provide an inexpensive color display device which can easily change a mask width in accordance with the number of paint colors of a color display and has good characteristics of a step motor.

[0004]

A color display element in which a cylindrical color display body whose surface is painted in multiple colors is rotatably supported on a ground plate, and a step motor for rotating this is provided inside the color display body. Are arranged vertically and horizontally to constitute a color display device.
A mask separate from the base plate is arranged between the color display members and fixed to the base plate, and the colors applied to the color display members other than those facing the display direction are covered with the mask. A mask is disposed on both sides of each color display element and attached to the base plate, or a color display element row, that is, a base plate of color display elements is connected, or a plurality of color display elements are provided on one base plate. By arranging the color display elements in a line, a mask that connects the masks covering the color display elements is attached to the base plate, or a color display unit, that is, the one row For the configuration in which the color display elements are arranged in a matrix by stacking the color display element rows of
A mask that covers the space between the color display elements is connected in the direction orthogonal to the color display element row, and a vertically formed mask attached to the base plate, or the color display units arranged in a matrix, cover the color display elements. A unit mask formed by connecting the masks in all directions, up, down, left and right, and attaching a unit mask to the base plate is used. And, as a single mask, a connection mask, a vertical connection mask, or a unit mask as a shielding mask, as an attaching / detaching means for attaching the shielding mask to the base plate, the end of the shielding mask is a concave portion of the base plate,
Or, one that fits into a hole, one that fits a convex part of a ground plate into a concave part or a hole of a shielding mask, one that screws a shielding mask to a ground plate with a screw, one that narrows a groove provided on a shielding mask to a ground plate. An arrow-shaped member provided at the end of the shielding mask is used to penetrate the hole of the base plate so as not to come off. Further, according to the present invention, with respect to the number of paint colors of the color display body and the mutual position of the mask, one of a plurality of positions before and after along the display direction can be selected and attached according to the width of the mask. Thus, the mask is attached so that the relationship with the color display is optimized.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an exploded perspective view of a color display element of the present invention and a first mask attaching / detaching means. The magnetic material base plate 10 is provided with four magnetic material magnetic cores 12 in fitting holes 14a to 14a.
d so as to cover each of the magnetic cores 12.
6 are arranged on the surface of each coil bobbin 16.
8a to 8d are wound, and a state is created in which the coils 18a to 18d are wound around the magnetic core 12. The coil terminals 20 at the lower ends of the coils 18a to 18d are connected to the circuit board 30 through the long holes 22 of the base plate 10, respectively. The upper ends of the four magnetic cores 12 are each provided with one magnetic material stator 24a for each magnetic core 12.
To d are connected, and the stators 24a to 24d
The parts are separated from each other by a stator gap 26 which is a gap between the parts. Color display 36 with cylindrical surface painted in multiple colors
Is located on the rotating shaft 36a integrally formed at the center of the inside of the color display 36, and the lower end of the rotating shaft 36a is formed in the base plate 10 through the through hole 28a of the stator frame 28 holding the stator. It is rotatably supported in the hole 32. The color display 36 includes a magnetic core 12, a coil bobbin 1.
6, are disposed so as to cover the coils 18a to 18d, the stators 24a to 24d, and the stator frame 28. The magnet 38 fixed to the concave portion 36b of the color display body 36 is magnetized in the diameter direction, and N and S magnetic poles are provided on the outer peripheral surface of the magnet 38, and a gap is provided in a space surrounded by the stators 24a to 24d. Position and constitute a stepper motor. The magnet 3 is displayed on the color display 36.
The one to which 8 is fixed is called a rotating body 37. The part of the step motor and the rotating body 37 is referred to as a color display element 40 as one set. When a drive signal of a step motor is applied from each coil terminal 20, the rotator 37 rotates at a specified angle, and a specified color is applied between the masks 11 vertically fixed to the connection holes 39 of the base plate 10. The color of the color display 36 is displayed in the display direction exposed by the arrow. The base plate 10 and the mask 11 have attachment / detachment means for easily attaching / detaching. In this embodiment, the attachment / detachment means is the mask 11 and the connection hole 39 to which it can be easily fitted and fixed.

[0006] For the mask 11, for example, masks having widths corresponding to the number of paint colors of the color display 36, two colors, four colors, eight colors, etc. are prepared. Is selected by

FIG. 2 is an explanatory view showing the arrangement of masks according to the number of paint colors of the color display of the present invention. FIG. 2 (a)
(C) is a top view of FIG. (A) is the state of the mask when the number of paint colors of the color display 36 is, for example, two colors of red and green. When the color display 36 displays green, the color display body 36 has a large painted area and does not show red when viewed from the display direction, so no mask is provided.

FIG. 2B shows the state of the mask when the number of paint colors of the color display 36 is, for example, four colors of red, yellow, blue and white. When the color display 36 displays blue, the area of each color of the color display is smaller than the two colors shown in (a). Therefore, the mask 11 having a width that can hide the adjacent yellow and white seen from the display direction. And the lower end of the mask 11 is connected to the connection hole 39a.
Fits.

FIG. 3C shows the state of the mask when the number of paint colors of the color display 36 is, for example, eight colors of yellow, white, green, water, blue, purple, black, and red. When the color display 36 displays blue, since the area of each color of the color display is further reduced as compared with the four colors shown in (b), the width of the mask 11 is wider than the mask of (b). Then, the lower end of the mask 11 is fitted into the connection hole 39b.

The connection holes 39a and 39b are provided at two locations in the front and rear direction along the display direction.
9 is provided in two places before and after. This is because the color display 36 is not located at a position deeper than the mask 11,
The cylindrical portion protrudes from between the masks 11 as much as possible, and the display color of the color display body facing the display direction receives a large amount of external light so that clear color display is performed, and the display surface is viewed obliquely from the front. This is because sometimes the display color is clearly visible. In other words, it is preferable that both side surfaces of the mask 11 are as close to the cylindrical surface of the color display 36 as possible. Therefore, as shown in FIGS. 2B and 2C, two connection holes 39a and 39b are selectively used depending on the width of the mask 11.

FIG. 3 is an explanatory view of the structure of the first mask of the present invention and other attaching / detaching means. (A) to (c)
Shows a structure in which the mask of the color display 36 is attached to and detached from the base plate 10. In the attachment / detachment structure shown in (a), a screw hole 44 is provided in the lower part of the mask 42, and a screw 46 is provided from the lower part of the main plate 10.
Is screwed into the hole 48 of the base plate 10 to fix the mask 42 to the base plate 10.

In the attachment / detachment structure shown in FIG. 1B, a U-shaped attachment / detachment member is provided at the lower end of the mask 50, and
4, the groove 52 of the U-shaped attaching / detaching member is
The mask 50 is fitted to the concave portion 54 of the
Fix to 0.

In the attachment / detachment structure shown in FIG. 1C, an arrow-shaped attachment / detachment member 58 is provided below the mask 56, and a through hole 59 is provided in the base plate 10. The umbrella portion of the arrow-shaped attaching / detaching member 58 is folded and penetrated into the through hole 59, and the umbrella portion is opened after the umbrella portion is opened.
6 is fixed to the main plate 10.

Although only the detachable structure for fixing the mask to the base plate 10 is shown here, the masks 42, 50, and 56 are, as shown in FIG. Select masks with different widths and no use.

FIG. 4 is an explanatory view of the structure for positioning the first mask of the present invention and another mounting / removing means. (A) to (c) show masks 90a and 90 having different widths.
The structure which attaches and detaches b, 92a, 92b, 95a, and 95b to the main plate 10 is shown. The attachment / detachment structure shown in (a) is a structure in which the masks 90a and 90b are fitted and fixed in the concave portions provided in the base plate 10. At this time, the narrow mask 90a
Is mounted at a deep position against the positioning surface 91a provided on the main plate 10, and the wide mask 90b is mounted at a shallow position against the positioning surface 91b provided on the main plate 10.

The attachment / detachment structure shown in FIG.
This is a structure in which holes 93 provided in a and 92b are fitted and fixed to convex portions provided in the main plate 10. At this time, the narrow mask 92a is provided on the surface 94a of the base plate 10 which serves as a positioning opposition.
And attach it to a deep position to make the wide mask 92
b is mounted at a shallow position by abutting against a surface 94b serving as a positioning opposition provided on the main plate 10. The holes 93 provided in the mask 92a may be recesses instead of through holes.

In the attachment / detachment structure shown in FIG. 3C, a screw hole 98 is provided in the base plate 10 and the masks 95a, 95
This is a structure in which it is screwed and fixed to the main plate 10 through a hole 96 provided in the b. At this time, the narrow mask 95a is
The mask 95b having a large width is mounted at a shallow position by abutting against a surface 99a serving as a positioning opposition provided on the base plate 10 and a wide mask 95b abutting against a surface 99b serving as a positioning opposition provided on the main plate 10.

FIG. 5 is an explanatory view of the structure of the second mask of the present invention and its attaching / detaching means. A plurality of color display elements 40 are arranged in a horizontal line on the upper surface of the ground plate 10, and the ground plate 10 is fixed by a ground plate connecting terminal block 70. An IC circuit board 73 (IC is an integrated circuit, but will be abbreviated hereinafter) is superposed on the lower surface of the base plate 10 insulated from the base plate 10 and is provided inside the 16 color display elements 40. The coil of the step motor is connected to the driver IC 72 mounted on the IC circuit board 73. The driver IC 72 receives the input signal from the connection terminal 74 and
A drive current is supplied to 0 to display a color. What has been described above is referred to as a color display element row 60. All the masks arranged in the color display element row 60 are connected to form a connection mask 62. The attachment / detachment structure for fixing the connection mask 62 to the base plate 10 includes:
The connection mask 62 is fixed to the base plate 10 by fitting the protrusions 64 provided at the lower end of the connection mask 62 into the recesses 66 of the base plate 10. The lower right part of FIG. 5 is a schematic view showing the projection 64 when the connection mask 62 is viewed from behind. The attachment / detachment structure for fixing the connection mask 62 to the base plate 10 is shown in FIGS. 1, 3 (a) and 3 (b), FIGS.
The detachable structure shown in (c) can also be used.

FIG. 6 is an explanatory view of the structure of the third mask of the present invention and its attaching / detaching means. A plurality (16 in this figure) of the color display element rows 60 described with reference to FIG. All the masks arranged in a vertical line of the color display unit 76 are connected to form a vertical connection mask 78. Vertical connection mask 78
In the detachable structure for fixing the base plate 10 to the base plate 10, a groove 79 is provided in the vertical connection mask 78, and the vertical connection mask 78 is fitted and fixed to the concave portion 80 of the base plate 10.

Another attachment / detachment structure for fixing the vertical connection mask to the base plate is a detachment / attachment structure using the concave / convex portions described with reference to FIG. Can also be used. 3 (b), 4 (a),
The attachment / detachment structure shown in (b) and (c) can be used.

FIG. 7 is an explanatory view of the structure of the fourth mask of the present invention and its attaching / detaching means. All the masks arranged in the color display unit 76 described in FIG. 6 are connected to form a unit mask 82. Unit mask 82
The attachment / detachment structure for fixing the unit
6 is provided with a groove similar to the vertical connection mask 78 in FIG.

The attachment / detachment structure for fixing other unit masks to the base plate is an attachment / detachment structure using the concave and convex portions described with reference to FIG.
A structure in which a convex portion is provided at the lower end portion of the unit mask and is tightly attached to the base plate can also be used. 3 (b), 4 (a),
The attachment / detachment structure shown in (b) and (c) can be used.

The first to fourth masks of the present invention, that is,
A single mask, a connection mask, a vertical connection mask, and a unit mask are collectively referred to as a shielding mask. This shielding mask is not limited in plate thickness, and does not need to be a magnetic material. Therefore, a material that can be easily blackened on the surface, such as plastic or aluminum, and does not have rust can be used.

In addition to the detachable structure of the present invention, caulking, welding, bonding, partial thermal deformation, or the like may be used to enhance the fixing force.

[0025]

As described above, the shielding mask is made of the base plate 10.
By making it removable instead of folding, even if it is replaced with a color display body with a changed number of paint colors in the final stage of the assembly process, it may be replaced with a shielding mask whose width has been changed correspondingly Therefore, it is possible to quickly respond to customer orders. In addition, by providing a configuration in which a plurality of shielding masks configured for each color display element are connected, mounting of the shielding masks is facilitated. Furthermore, since the material of the shielding mask can be freely selected, the shielding mask can be manufactured at low cost and there is no adverse magnetic effect.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a means for attaching and detaching a color display element and a first mask according to the present invention.

FIG. 2 is an explanatory diagram showing the arrangement of masks according to the number of paint colors of the color display of the present invention.

FIG. 3 is an explanatory diagram of a structure of a first mask and other attaching / detaching means of the present invention.

FIG. 4 is an explanatory view of a structure for positioning a first mask of the present invention and still another attaching / detaching means.

FIG. 5 is an explanatory view of the structure of the second mask and the attaching / detaching means of the second mask of the present invention.

FIG. 6 is an explanatory diagram of a structure of a third mask and a mounting / detaching means of the third mask of the present invention.

FIG. 7 is an explanatory view of a structure of a fourth mask and a mounting / detaching means of the fourth mask of the present invention.

FIG. 8 is an exploded perspective view of a conventional color display element.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Ground plate 11 Mask 12 Magnetic core 18a-d Coil 24a-d Stator 26 Stator gap 36 Color display 37 Rotating body 38 Magnet 39 Connection hole

Continuation of the front page (72) Inventor Yoshihiko Yanagawa 840 Takeno, Shimotomi, Tokorozawa-shi, Saitama F-term in the Technical Research Institute, Citizen Watch Co., Ltd. 5C094 AA08 AA43 AA44 BA63 BA83 BA94 CA02 CA24 5C095 AA90 BA01 DA03 EE21 EE27

Claims (6)

[Claims] 1. A cylindrical color display having a rotation axis and a multi-colored surface, a magnet having a magnetic pole on an outer peripheral surface, and a magnet fixed to a rotation axis of the color display. A rotating body, a plurality of stators surrounding magnets and separated by a stator gap, a magnetic core magnetically coupled to the stator, a coil wound around the magnetic core, and a ground plate magnetically coupled to the magnetic core. A color display element having a structure in which the stator and the coil are rotated by covering the color display body, and exposing only a desired display color among the colors separately applied to the color display body. A color display device comprising: a mask for covering adjacent unnecessary colors; and attaching / detaching means for easily fixing the mask to the base plate. 2. The color display device according to claim 1, wherein a plurality of the color display elements are formed on one common ground plane, or one or a plurality of color display elements are formed on the ground plane. A plurality of color display elements are arranged in a line by connecting a plurality of the color display elements to one plane to form a color display element row, and all the masks arranged in the color display element row are connected and commonly formed. A color display device comprising: a connection mask; and fixing the connection mask to the base plate by attaching / detaching means. 3. A color display unit comprising a plurality of the color display element rows according to claim 2, which are stacked and arranged to form a color display unit, and a plurality of masks arranged in a line in a vertical row of the color display units are connected. A color display device comprising: a connecting mask; and fixing the vertical connecting mask to the base plate by attaching / detaching means. 4. A color display unit is configured by stacking and arranging a plurality of the color display element rows according to claim 2, and a unit mask is provided in which all the masks arranged in the color display unit are connected, and the base plate is provided. A color display device, wherein the color display device is fixed to the color display device by attaching / detaching means. 5. The color display device according to claim 1, wherein the mask, the connection mask, the vertical connection mask, and the unit mask are a shielding mask, and the structure of the attaching / detaching means is an end of the shielding mask. Are fitted in the recesses or holes in the base plate, or the projections of the base plate are fitted in the recesses or holes in the shielding mask, or the shielding mask is screwed into the ground plate with screws, or the grooves provided in the shielding mask A color display device, which is either a device that tightly adheres to a ground plate or a device that penetrates an arrow-shaped member provided in a shielding mask through a hole in the ground plate. 6. The color display device according to claim 1, wherein the mask, the connection mask, the vertical connection mask, and the unit mask are used as shielding masks, and the attachment / detachment unit removes the mask from a plurality of mounting positions. A color display device wherein a shielding mask is attached by selecting an attachment position corresponding to a width.