JP3203091B2 - Color display device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is applied to a multi-color information display device for displaying character information and video information of a color still image or a moving image. The present invention relates to a color display device that performs a desired color display.

[0002]

2. Description of the Related Art As a color display device (module) of this type, there is known an example in which a permanent magnet and an exciting coil are used to drive a multicolor rotating body to display a desired color. Examples of such examples are “JP-A-51-144593”, “JP-A-58-185885”, and “JP-A-62-5850.
No. 8 ". Further, the present applicant relates to a multi-color information display device that displays character information and video information of a color still image or a moving image on a dot matrix using a permanent magnet and an exciting coil of this type.
No. 74, "Japanese Patent Application No. 4-103908", "Japanese Patent Application No. 4-103908"
103909 ”,“ Japanese Patent Application No. 4-128010 ”,
"Japanese Patent Application No. 4-128011", "Japanese Patent Application No. 4-1318"
No. 36 "," Jpn.
Various proposals have been made based on Japanese Patent Application No. 219661, Japanese Utility Model Application No. 4-64660, and Japanese Utility Model Application No. 4-64661.

According to the proposals of the present applicant, for example, one of a cylindrical color display body whose surface is equally divided into each color such as red (R), green (G), blue (B), and white (W). With a lid on
A permanent magnet is arranged at the center of the lid. Further, a plurality of exciting coils and yokes are arranged in a cylindrical member to switch the polarity of energizing the exciting coil and to control the time of energizing (pulse signal). In other words, a desired color display is performed by rotating and stopping the visual part of the color display body by applying the principle of the step motor.

As described above, a color display device for performing color display is
A large number of multi-color information display devices of a dot matrix are arranged in rows and columns to display character information and video information as color still images or moving images.

[0005]

The above-mentioned prior art has a structure which basically fulfills a sufficient function. However, there is room for improvement with respect to the demand for displaying character information and video information in more various colors and precise color still images or moving images. As an example of this improvement, for example, there is a signal processing for enabling high-speed rotation and stationary of the module.
In addition, there is a reduction in size and weight for forming a fine dot matrix in which a greater number of color display devices are arranged, and an improvement in display quality by high-speed rotation and stillness, and an improvement in durability with high-speed rotation and stillness. Etc.

In view of these, in the proposal of the present applicant, it is desired to simplify the configuration relating to the manufacture of the stator, the stator receiver, the yoke, the color display, and the like, and to further reduce the rotational wear of the color display. There is room for improvement.

The present invention has been made in view of the above circumstances, and a first object of the present invention is to facilitate manufacture of a stator, simplify assembly, and enable the stator to be arranged with high precision. Another object of the present invention is to provide a color display device in which the rotation efficiency, rotation accuracy, and durability of the color display are improved.

A second object of the present invention is to provide a color display device in which the configuration relating to the manufacture of the yoke and the stator is simplified, and the excitation efficiency of the coil and the rotation efficiency of the color display are improved.

A third object of the present invention is to provide a color display device in which the rotational wear of the color display body is reduced and the structure for manufacturing the stator receiver and the color display body is simplified.

A fourth object of the present invention is to provide a color display device whose configuration is simplified by using an integral yoke and a stator or a magnetic member.

[0011]

According to the first, second, third, fourth and fifth aspects of the present invention, the first object is achieved.
The invention according to the invention, wherein the outer periphery is divided into a plurality of colors, and a cylindrical color display body is provided in which a permanent magnet is arranged and rotatably supported,
In a color display device including: a plurality of stators and a stator receiver disposed around a permanent magnet; a plurality of yokes magnetically coupled to the plurality of stators; and an exciting coil that excites the plurality of yokes. A plurality of stators are arranged on the stator receiver with a gap therebetween in a circle,
Further, each of the plurality of stators has a configuration in which the respective gaps are widened outward from the center of the stator.

According to a second aspect of the present invention, there is provided a tubular color display body which is divided into a plurality of colors on an outer periphery and is rotatably supported on which permanent magnets are arranged, and a plurality of color display bodies arranged around the permanent magnets. And a plurality of yokes that are magnetically coupled to the plurality of stators, and an excitation coil that excites the plurality of yokes. The bottom of the stator receiver is connected in a U-shape on the upper surface or the lower surface of the plurality of stators, and the color indicator is provided at the center of the bottom of the stator receiver. It is configured to include a rotation bearing portion into which a shaft member is inserted.

According to a third aspect of the present invention, there is provided a cylindrical color display body which is divided into a plurality of colors on an outer periphery and is rotatably supported on which permanent magnets are arranged, and a plurality of color display bodies arranged around the permanent magnets. In a color display device having a stator and a stator receiver, and a plurality of yokes magnetically coupled to the plurality of stators, and an exciting coil for exciting the plurality of yokes, the stator receiver includes a plurality of stators. , Are arranged in a circle with a gap therebetween, and a portion constituting a stator receiver is arranged in each gap of the plurality of stators.

According to a fourth aspect of the present invention, there is provided a cylindrical color display body which has an outer periphery divided by a plurality of colors and is rotatably supported on which a permanent magnet is arranged, and a plurality of color display bodies arranged around the permanent magnet. And a stator receiver, a plurality of yokes magnetically coupled to the plurality of stators, and an exciting coil for exciting the plurality of yokes, wherein the plurality of stators have a central hole. Has a disk shape,
A plurality of gaps are provided that are magnetically short-circuited at the outer peripheral portion in the diameter direction, and the stator receiver holds the outer peripheral portions of the plurality of stators.

According to a fifth aspect of the present invention, there is provided a cylindrical color display body which has an outer periphery divided by a plurality of colors and is rotatably supported on which a permanent magnet is arranged, and a plurality of color display bodies arranged around the permanent magnet. In a color display device comprising: a stator and a stator receiver, a plurality of yokes magnetically coupled to the plurality of stators, and an exciting coil for exciting the plurality of yokes, the plurality of stators have a center hole. And, a plurality of magnetic plates having a plurality of gaps in the diameter direction are laminated, and furthermore, surrounding the outer peripheral portions of the plurality of stators, a portion constituting a stator receiver is arranged in each gap of the plurality of stators. The plurality of stators are supported by a stator receiver.

According to a sixth aspect of the present invention which achieves the second object,
The outer periphery is divided into a plurality of colors, and a cylindrical color display body in which permanent magnets are arranged and supported rotatably, and a plurality of stators and stator receivers arranged around the permanent magnets,
A plurality of yokes magnetically coupled to a plurality of stators, and an exciting coil for exciting the plurality of yokes, and a magnetic plate having a plurality of exciting coils disposed thereon, a part of the magnetic plate is A prismatic rod member processed without being separated is inserted as a yoke into a plurality of excitation coils, and the tip in the insertion direction is press-fitted into a plurality of round holes of a stator and fixed.

According to a seventh aspect of the present invention, which achieves a third object,
In a color display device including an outer periphery that is divided into a plurality of colors and has a cylindrical color display body having a permanent magnet and a shaft member, a stator receiver, a plurality of stators, and a plurality of excitation coils, In the center of the body, while having a shaft member insertion portion in which a long hole extending perpendicular to the stator arrangement surface is formed, the shaft member of the color display body is inserted into the long hole of the shaft member insertion portion, The color display is arranged to be rotatable.

The invention according to claim 8 which achieves the fourth object is as follows.
The outer periphery is divided into a plurality of colors, and a cylindrical color display body having a permanent magnet disposed inside and a shaft member rotatably supported, and a plurality of surrounding color magnets surrounding the permanent magnet in the color display body. An annular stator portion divided by a cut portion having a narrow cross-sectional area, a plurality of excitation coils, a magnetic member provided on the opposite side of the stator portion sandwiching the plurality of excitation coils, and the same member extending from the stator portion The tip is press-fitted into the hole of the magnetic member and fixed, or the same member extends from the magnetic member and is inserted into the plurality of excitation coils, And a yoke whose part is press-fitted into the hole of the stator part and is fixed.

[0019]

According to the first aspect of the present invention, the gaps between the plurality of stators are widened outward from the center of the stator. In this case, the magnetic gap in each of the plurality of stators is widened, and the manufacture of the stator is facilitated. Further, since the magnetic gap is narrowed at the central portion of the stator, the magnetic flux converges to improve the rotation efficiency of the color display.

According to the second aspect of the present invention, the plurality of stators are arranged on the stator receiver in a circular shape with a gap therebetween, and the bottom of the stator receiver has a U-shape on the upper or lower surface of the plurality of stators. Be linked. Furthermore, a rotating bearing portion into which the shaft member of the color indicator is inserted is provided at the center of the stator receiver and the plurality of stators, and since the stator receiving member and the rotating bearing portion are integrated, the assembly of the stator is simplified. Be transformed into Further, the stator receiver and the color display are arranged with high accuracy, and the rotation accuracy and durability are improved.

According to the third aspect of the present invention, a plurality of stators are arranged in the stator receiver in a circular manner with a gap therebetween, and a portion constituting the stator receiver is inserted and arranged in each of the plurality of stators. Is done. In this case, the plurality of stators are integrally formed with the stator receiver by resin molding. As a result, the resin material enters into the gaps of the plurality of stators, so that the positions of the plurality of stators are highly accurate and uniform, and the stator assembly is performed. Accuracy and rotation accuracy of the color display are improved.

According to the fourth aspect of the present invention, a plurality of disk-shaped stators having a central hole are provided with a plurality of gaps which are magnetically short-circuited at the outer peripheral portion in the diameter direction, and the stator receiver is provided with a plurality of stator outer peripheral portions. Holding a department. In this case, in a state where the plurality of stators are connected, the stator is integrally formed with the stator receiver by resin molding, and the gaps between the plurality of stators, that is, the positions of the plurality of stators are highly accurate and uniform, and the And the rotation accuracy of the color display body are improved, and the manufacture becomes easy.

According to the fifth aspect of the present invention, a plurality of magnetic plates having a center hole in the plurality of stators and having a plurality of gaps in the diameter direction are stacked. Furthermore, the outer periphery of the plurality of stators is surrounded, and a stator receiver is formed in a gap between each of the plurality of stators. In this case, the plurality of stators are formed integrally with the stator receiver by resin molding, and the gaps between the plurality of stators, that is, the positions of the plurality of stators are made highly accurate and uniform, and the assembling accuracy of the stator, and In addition, the rotation accuracy of the color display body is improved, and the responsiveness is also improved by improving the high frequency characteristics.

According to a sixth aspect of the present invention, a prismatic bar member processed without cutting off a part of a magnetic plate is inserted as a yoke into a plurality of excitation coils, thereby simplifying the structure for manufacturing the yoke and the stator. I have. Further, the tip of the yoke in the insertion direction, for example, a square tip is press-fitted into a round hole which is easy to process a plurality of stators, and the square corner in the square is deformed and fixed. In this case, the magnetic resistance of the joining portion is reduced, the excitation efficiency and the rotation efficiency of the color display are improved, and the assembly can be simplified and the manufacturing cost can be reduced.

According to a seventh aspect of the present invention, there is provided a shaft member insertion portion which extends perpendicularly to the stator arrangement surface and has a long hole at the center of the stator receiver. Further, the shaft member of the color display is inserted into the elongated hole of the shaft member insertion portion, and the color display is rotatably disposed, so that the rotational displacement of the color display is reduced, the rotational friction, vibration, and sound are reduced. There is no relative error between parts,
In addition, the configuration relating to the manufacture of the stator receiver and the color display is simplified, and the assembly is facilitated.

According to an eighth aspect of the present invention, a yoke in which the same member extends from a stator portion made of a magnetic member is inserted into a plurality of exciting coils, and the tip is press-fitted into a hole of the magnetic member. Alternatively, a yoke in which the same member extends from the magnetic member is inserted into a plurality of excitation coils, and the distal end portion is press-fitted into a hole in the stator portion to be fixed. Thereby, the configuration is simplified by integrating the yoke and the stator or the magnetic member, and the step motor can be reduced in size, efficiency, and cost.

[0027]

Next, an embodiment of the color display device of the present invention will be described with reference to the drawings. First, a multi-color information display device in which the color display device of the present invention is arranged as a dot matrix in rows and columns will be described. FIG. 1 is an exploded perspective view showing the overall configuration of the multicolor information display device. In FIG.
The multi-color information display device includes a transparent case cover 2 and a display unit 4 arranged in the case cover 2 to form a color still image or a moving image of character information and video information, which will be described in detail later with reference to FIG. Is provided.

Further, in this configuration, a base plate 6 for disposing the display unit 4 divided into 16 blocks,
An address IC circuit board 8 for outputting a drive signal for displaying a color display element at a predetermined position in a predetermined color when forming character information and video information on a dot matrix, a case packing 10 for drip-proof, and a case body 12 And a main body mounting bracket 14 for fixing the entire device to a display place.

Further, the apparatus is disposed between the display section 4 and the main body mounting bracket 14 to join the entire apparatus, and a base plate leg 16a, a flat seat 16b, a nut 16
c. In addition, a plurality of screws, nuts, and the like (not shown) for fixing each member are provided. Further, the display unit 4 includes 16 ground plate connecting terminal blocks 4a, “16 × 16” color display elements 4b (corresponding to the color display device of the present invention) forming a dot matrix, and a dot matrix. A driver IC 4c for outputting a drive signal for rotating and stopping the respective color display elements 4b and a 7-wire connection terminal 4d serving as a signal input terminal of the display unit 4 are provided.

The address IC circuit board 8 has character information,
A multipolar flat connector 8a for receiving video information from a signal processing / control system (not shown) and address information for displaying the color display element 4b at a predetermined address (position) on the dot matrix in a predetermined color are output. Address IC 8b
Etc. are provided. It also has a multi-pole flat connector 22a connected to the multi-pole flat connector 8a, a cord 22b, a drip-proof bush 22c, and a multi-pole flat connector 22d connected to a signal processing / control system device (not shown).

Next, the detailed configuration of the display unit 4 will be described.
FIG. 2 is an exploded perspective view showing a detailed configuration of the display unit 4 in FIG. In FIG. 2, the display unit 4 is provided with a base plate connecting terminal block 4a arranged orthogonally to the surface of the base plate 6, and on the side surface of the base plate connecting terminal block 4a, and the surface m of the base plate connecting terminal block 4a. It has a metal plate ground plate 30 on which the color display elements 4b are arranged so as to be positioned above it, and a driver IC circuit board 32 which is arranged so as to be insulated and joined to the ground plate 30 and provided with 7-wire connection terminals 4d. are doing.
Also, four yokes 34a, 34b, 34c, 34d, which constitute a color display element 4b in FIG. 1 and are round bar magnetic members whose one ends are press-fitted into the base plate 30, and the yokes 34a to 34d, Exciting coils 36 inserted respectively
a, 36b, 36c, and 36d.

Further, a stator receiver 38 which constitutes the color display element 4b, and a stator 40 which is provided on the stator receiver 38 and is made of a four-piece iron piece into which the other ends of the yokes 34a to 34d are press-fitted, And yoke 3
4a to 34d, a color indicator 42 which covers the excitation coils 36a to 36d, the stator receiver 38, and the stator 40, is rotatably disposed, and has an outer peripheral surface equally divided by each color such as red, green, blue, white, and the like. And a permanent magnet 44 arranged in the concave portion 42 a of the head of the color display 42 to excite the stator 40. The color indicator 42 is provided on the main plate 30.
In order to cover a part outside the display, a member plate of the base plate 30 is punched out by a press or the like, and a plurality of folded cover parts 30a, 30b, 30c, 30d, 30e are arranged between the respective color display elements 4b. ing.

Each of the exciting coils 36a to 36d has a coil wound around a bobbin having a thread shape. Furthermore, a driver IC for connecting an end of an insulated conductor wire as a coil member
It has a coil terminal plate for mounting and connecting to the circuit board 32. The color display body 42 has a shaft member 4 at the center thereof.
2b is provided. The tip of the shaft member 42b is inserted into a bearing (not shown) of the base plate 30, and is rotatably supported in a hollow manner by the suction force of the stator 40 and the yokes 34a to 34d.

Next, a detailed configuration of the color display element 4b will be described. FIG. 3 is a cross-sectional view showing a configuration of the color display element 4b shown in FIG. The example of FIG.
0, the driver IC circuit board 32, and the yokes 34a, 3
4c, the exciting coils 36a and 36c, and the stator receiver 3
8, a stator 40, a color indicator 42, and a permanent magnet 44. The exciting coil 36a has a coil 48 formed by winding an insulated wire around a bobbin-shaped coil bobbin 47a.
a is provided. The exciting coil 36c is a coil 48 formed by winding an insulated conductor around a bobbin coil bobbin 47c.
c is provided. The exciting coils 36b and 36d, which are not shown in FIG.
It has the same cross-sectional configuration as c.

In the arrangements of FIGS. 1 and 2, serial data of character information and video information of a color still image or a moving image is transmitted from a device (not shown) to each of the color display elements 4b on the dot matrix. Type connectors 22a, 22d,
The power is supplied to the address IC 8b through the cord 22b and the multipolar flat connector 8a. In this address IC 8b,
From the serial data, the color display element (4b) at the address (position) to be driven to rotate on the dot matrix is determined,
In addition, the amount of rotation for performing the current color display is determined from the previous display color. This data is sent to the driver IC 4c through the 7-wire connection terminal 4d of the base plate connection terminal block 4a.

The driver IC 4c sends a drive signal to the color display element 4b at a predetermined address to form a first color still image or moving image on a dot matrix. Subsequently, the second and subsequent color still images or moving images are formed by the same signal processing. In the color display element 4b, the polarity of energization to the internal excitation coils 36a to 36d is switched, and the time of energization (pulse signal) is controlled. That is, the color display 42 is rotated and stopped by the magnetic field polarity of the stator 40 excited by the magnetic fields generated by the yokes 34a to 34d and the magnetic field polarity of the permanent magnets 44 to perform a desired color display. The moving image can be displayed on a dot matrix by processing, for example, an NTSC television image signal.

Next, a first embodiment corresponding to claims 1 and 2 will be described. First, the configuration of the stator receiver 38 and the stator 40 according to the first embodiment will be described. FIG. 4A is a top view illustrating a configuration of a magnetic member serving as the stator 40, and FIG. 4B is a top view illustrating a state where the magnetic member serving as the stator 40 is fitted into the stator receiver 38. 4C is a cross-sectional view taken along the line AA in FIG. 4D. FIG. 4D is unnecessary after the magnetic member to be the stator 40 is fitted into the stator receiver 38. FIG. 4E is a top view showing a state in which a part is cut away, and FIG. 4E is a perspective view showing the configuration of FIG.

FIG. 4A shows that a magnetic member (iron plate) 50 is produced by press punching or the like in order to produce a member to be the stator 40 shown in FIG. The magnetic member 50 has a central hole 50a into which the concave portion 42a of the color indicator 42 shown in FIG.
have. Around the quarter of this central hole 50a,
Holes 50b, 50c, 50d, and 50e into which the ends of the yokes 34a to 34d shown in FIG. 2 are press-fitted, and cutouts 50f, 50g, and 50h for dividing the magnetic member 50 into the stator 40 having four parts. 50i are formed. The gaps between the notches 50f to 50i are formed wider from the center outward. In addition, the collar portion 50j,
50k, 50l, and 50m are provided. One end of each of the cutouts 50f to 50i is connected to the center hole 50a, and the other end is enlarged to a position beyond the outer diameter of the stator receiver 38.

As shown in FIG. 4B, the magnetic member 50 pre-processed as described above is inserted by integral molding when the stator receiver 38 is produced by plastic molding. The integrally formed stator receiver 38 has a structure shown in FIG.
As shown in (c) and (e), the central hole 5
A recess 51 having the same diameter as Oa and extending from the end of the stator 40 to the member of the stator receiver 38 is formed. A through hole 52 is provided at the center of the recess 51, and the center hole 50a and the recess 51 of the stator 40 are provided in FIG.
The concave portion 42a of the color display body 42 shown in FIG.
The shaft member 42b of the color indicator 42 shown in FIG. Further, the stator receiver 38 shown in FIGS. 4C and 4E can be used upside down, with the through-hole 52 facing upward.

After the integral molding shown in FIG. 4B, the notches 50f to 50i of the magnetic member 50 are formed along the outer periphery of the stator receiver 38 as shown in FIG. 4D. And punched out with a press, etc.
m is separated. By this separation, the stator 40 separated into four members is arranged on the stator receiver 38.

In the first embodiment, the notch 50f
A gap of 50i is formed wide from the center outward. For this reason, the outer peripheral portion of the magnetic gap in the gap becomes wider,
The production of press blanking becomes easy. The notch 50
Since the magnetic gap is narrow and the magnetic flux is converged at the center of f to 50i, the rotation efficiency of the color display is not reduced. Further, the color indicator 4 shown in FIG.
The central hole 50a into which the two concave portions 42a are inserted and the concave portion 51
Are integrated and the bottom is connected in a U-shape, so that assembly is simplified. As a result, since the stator receiver 38 and the color indicator 42 shown in FIG. 3 can be arranged with high accuracy, the rotation accuracy and durability are improved.
Further, since the concave portion 51 and the through-hole 52 are formed by plastic molding, no lubrication and no sound are required, the rotation is smooth, and the power consumption is reduced.

Next, a second embodiment corresponding to claim 3 will be described. FIG. 5A is a perspective view illustrating a state where four magnetic members according to the second embodiment are arranged on a stator receiver. FIG. 5 (b) is a perspective view showing four magnetic member pieces to be a stator to be manufactured in advance. In this configuration, as shown in FIG. 5B, the yoke 3 shown in FIG.
The stators 55a, 55b, 55c, and 55d of four magnetic members provided with holes into which the ends of 4a to 34d are press-fitted are manufactured by a punching press or the like. Then, when the stator receiver 54 is manufactured by injection molding, FIG.
As shown in (a), the stators 55a to 55d are integrally formed.

With this configuration, the stators 55a to 55d having the same and accurate dimensions can be manufactured in advance, and the stators 55a to 55d can be accurately arranged on the stator receiver 54 by integral molding. Each of the stators 55a to 55d has a fan-shaped and central portion which is omitted. Further, the stator 55a to 55d has a concave arc into which the outer member of the concave portion 42a of the color indicator 42 shown in FIG. Has become. in this case,
The end faces between the adjacent stators 55a to 55d are parallel.
Therefore, unlike a conventional square stator, magnetic saturation and increase in magnetic resistance when the central part approaches do not occur in the parallel plane. Thereby, the exciting coil 3 shown in FIG.
6a to 36d are energized, and their polarity and energizing time are controlled, so that the braking performance when the color display 42 rotates or stops can be improved.

Further, in the second embodiment, since the positioning of each of the stator components can be performed by the mold during the injection molding, the positions between the stators are made highly accurate and uniform, and the assembling accuracy is improved. Further, since the resin material (portion of the stator receiver) enters the magnetic gap of the stator, there is no fear of iron powder or dust entering the magnetic gap, the fall of the yoke can be corrected, and the color display shown in FIG. The rotation accuracy of 42 is improved.

Next, a third embodiment corresponding to claim 4 will be described. FIG. 6A is a perspective view showing a state in which a stator receiver is resin-molded outside a magnetic member serving as a stator in the third embodiment. FIG. 6 (b) is a perspective view showing a state where it is cut into a circle after molding and completed.

As shown in FIG. 6A, in this configuration,
A magnetic member 56 of a round bar to be a stator is prepared in advance. The magnetic member 56 of the round bar has the central hole 56a into which the outer member of the concave portion 42a of the color display body 42 shown in FIG. 3 is inserted, and the ends of the yokes 34a to 34d shown in FIG. Four holes 56b, 56c, 56d, 56e, and between these holes 56b to 56e, a central hole 56a and cut portions 56f, 56g, 56h, 5 cut from the outer periphery.
6i are formed. A cylindrical member 58 that becomes a stator receiver by plastic molding is provided on the outer peripheral portion of the magnetic member 56 thus processed. Then, FIG.
As shown in FIG. 2B, the stator is completed by sectioning.

In the configuration of the third embodiment, the manufacturing process is simplified because one round bar magnetic member 56 is used. The four cuts 56f to 56i are formed in a narrow cross section, and each part is magnetically saturated to function as an equivalently divided stator. Therefore, the magnetic member 56
As a result, the position of the stator is highly accurate and uniform, and the assembling accuracy is improved, and the rotation accuracy of the color display body 42 shown in FIG. 3 is improved.

Next, a fourth embodiment corresponding to claim 5 will be described. FIG. 7A is a perspective view showing a state in which a stator receiver is resin-molded outside a round bar magnetic member serving as a stator in the fourth embodiment. FIG. 7 (b)
FIG. 4 is a perspective view showing a state in which the resin is molded into a round slice and completed.

As shown in FIG. 7A, in this configuration,
A resin cylindrical member 64 serving as a stator receiver is provided outside the round bar member 60 on which the magnetic plates 61 are laminated by plastic molding. The round bar member 60 has slits 62a extending from the outer periphery to the center of the magnetic plate 61 in which the circumference is divided into four in advance.
62b, 62c, and 62d, and the yokes 34a to 34a to
Holes 62e, 62f, 62g into which the ends of 34d are press-fitted.
62h is provided and laminated. Next, the round bar member 60
A cylindrical member 64 serving as a stator receiver by simultaneous molding of plastic and a resin material entering slits 62a to 62d. Then, a hole 62m serving as a through hole into which the outer member of the concave portion 42a of the color indicator 42 shown in FIG. 3 is inserted is formed in the center of the round bar member 60. On this occasion,
The outer periphery of the hole 62m is joined to the end of each of the slits 62a to 62d to form a four-part stator. Thereafter, as shown in FIG.

In the configuration of the fourth embodiment, the stator divided into four sections with a narrow cross section is not joined. That is, there is no increase in magnetic saturation and increase in magnetic resistance at the division surface. Thereby, the excitation coils 36a to 36d shown in FIG.
By controlling the polarity and energizing time, the color display 42 rotates,
The braking performance when stopping is improved.

The stator is constructed by laminating magnetic plates. Since this magnetic plate is a thin plate, press working is easy, and slits 62a to 62d and holes 62e to 62h are provided.
Processing accuracy is improved. Further, the thickness of the stator can be freely selected. In addition, electric characteristics are improved. That is, the magnetic response characteristics with respect to the high-frequency characteristics related to the rise and fall of the drive waveform can be improved, and the drive efficiency can be improved. Therefore, the position of the stator, which is the round bar member 60, is highly accurate and uniform, and the assembling accuracy of the stator is improved, and the color indicator 42 shown in FIG.
, The rotational accuracy is improved.

Next, a fifth embodiment corresponding to claim 6 will be described. FIG. 8A is a perspective view showing a state in which the yoke according to the fifth embodiment is arranged by direct press punching from the magnetic plate 70. FIG. 8B shows the state of the stator 40.
FIG. 9 is a view showing a state before a prism is inserted into the hole of FIG.
(C) is a figure which shows the state after inserting a prism in the hole of the stator 40. Here, the description will be given with reference to FIG. In the configuration shown in FIG. 8A, the members of the ground plate 30 of FIG. 2 are used as the magnetic plate 70 of FIG. , 70b, 70c, 70d.

The prism yokes 70a to 70d are arranged as shown in FIG.
As shown in FIG. 2A, the excitation coils 36a to 36d in FIG.
The bobbin is inserted. The upper end portion after the insertion is inserted into the holes 50a, 50 of the stator 40 in the stator receiver 38.
b, 50c, and 50d. At this time, as shown in FIG. 8B, the diagonal lengths of the four prism yokes 70a to 70d are formed smaller than the diameters of the holes 50a to 50d and press-fitted. Therefore, as shown in FIG. 8C, the acute angle portions of the four prism yokes 70a to 70d are formed by the holes 50b to 50e.
Since it is deformed on the inner surface of the hole and so-called press-fitted, it is not necessary to consider the diameter accuracy as in the case of press-fitting a round bar into a round hole, and it is not necessary to stand one yoke at a time. Positioning and manufacturing cost reduction. In addition, press processing of a round hole is better than press processing of a square hole.
There is an advantage that the life of the mold is long. Further, the magnetic resistance at the junction between the prism yokes 70a to 70d and the holes 50b to 50e is reduced, and the excitation efficiency and the rotation efficiency of the color display are improved.

Next, a sixth embodiment corresponding to claim 7 will be described. Here, description will be made with reference to FIGS. FIG. 9A is a cross-sectional view showing a configuration in which a shaft-shaped shaft member insertion portion into which a shaft member of a color display body can be rotatably inserted is provided in the stator receiver according to the sixth embodiment. FIG.
(B) is a perspective view which shows the structure of a stator receiver by a partial cross section. 9A and 9B, the stator receiver 7
Reference numeral 4 denotes a four-part stator 40 arranged at the upper part, and a concave part 74a and a hole-shaped shaft member insertion part 74b extending downward and inclined at the center thereof. Here, the concave portion 74 a of the stator receiver 74 is
At the same time when the outer portion of 6a is inserted, the shaft member 76b is arranged in the hole in the shaft member insertion portion 74b.

In the structure of the sixth embodiment, the shaft member 7 of the color display 76 is inserted into the shaft member insertion portion 74b of the stator receiver 74.
When inserting and arranging 6b, it is only necessary to simply insert the color indicator 76 into the stator receiver 74, and the assembly can be simplified. Further, since the stator receiver 74 and the color indicator 76 can be manufactured by plastic molding, accuracy is improved, and rotational friction, vibration, and noise are reduced. Also, as shown in FIG. 3, the relative error between the components is smaller than the case where the tip of the shaft member 42b of the color display 42 is inserted and arranged in the ground plate 30 and the driver IC circuit board 32. And the accurate position of the axis can be maintained.

Next, a seventh embodiment corresponding to claim 8 will be described. FIG. 10A is a sectional view showing the configuration of the seventh embodiment. FIG.
FIG. 3A is a top view illustrating a configuration of an integrated yoke and a stator in FIG. FIG. 10C is a top view illustrating a configuration of a magnetic member that functions as a short ring in FIG. FIG. 10D is a top view illustrating a configuration of a magnetic member functioning as a yoke and a short ring in a modification of the seventh embodiment. FIG. 10E is a top view illustrating a configuration of a stator according to a modification of the seventh embodiment.

In the configuration shown in FIG. 10A, a circuit board 80 and excitation coils 82 and 83 arranged on the circuit board 80 are provided as in the configuration shown in FIG. Note that, in addition to the excitation coils 82 and 83, two excitation coils are provided. That is, similarly to the configuration shown in FIG. 2, a total of four exciting coils are provided. In addition, a color indicator 84 is provided so as to surround the exciting coils 82 and 83. The color indicator 84 has a shaft member mounting portion 84 at a central portion inside.
The shaft member 86 for rotatably disposing the color display body 84 is fixed to the shaft member mounting portion 84a.

Further, in the configuration of the seventh embodiment, a permanent magnet 88 inserted and fixed to the shaft member 86, an annular stator 89 surrounding the permanent magnet 88 described later, and a stator Exciting coils 82 and 83 extending downward from 89 and a yoke 90 inserted into the center member of the coil bobbin of the other two exciting coils are provided. Further, the color display 84 is disposed on the circuit board 80.
A shaft member arranging tube 92 into which the shaft member 86 is inserted is provided. The shaft member 86 is inserted through the shaft member arranging tube 92, and the color display body 84 is rotatably supported.

Further, a fixing plate 94 for holding the exciting coils 82 and 83, the other two exciting coils and the four yokes 90 at predetermined positions is provided. Further, a magnetic member 96 serving as a short ring that press-fits the ends of the four yokes 90 penetrating the circuit board 80 into the through holes and connects them is arranged on the lower surface of the circuit board 80 so as to be joined thereto. . In addition, in addition to these, terminals (not shown) to which the coil ends of the exciting coils 82 and 83 and the other two exciting coils are connected are also provided.

Next, the stator 89 and the yoke 90 will be described in detail. The stator 89 and the yoke 90 are arranged as shown in FIG.
As shown in (b), the magnetic member (iron plate) is integrally punched out by a press or the like, and the stator 89 is provided with cut portions 98a and 98b of a narrow cross-sectional area provided on the inner peripheral portion of the annular member. , 98c and 98d are formed. The yoke 90 is composed of an elongated plate member that extends four-way from the stator 89, and the elongated plate member is bent by 90 ° to form the yoke 90.

The magnetic member 96 of the short ring has a central hole into which the tip of the shaft member arranging tube 92 is press-fitted in the center of the disk, and four ends into which the ends of the four yokes 90 are press-fitted. There are three rectangular holes. According to this configuration, magnetic saturation occurs in the cut portions 98a to 98d of the stator 89, and the stator 89 functions as the stator 89 divided into four parts.
The color display 84 can be displayed in a desired color by changing the positional relationship between the polarity of the energizing coils and the other two exciting coils, the magnetic polarity according to the energizing time, and the polarity of the permanent magnet 88. Note that the yoke 90, the stator 89, and the magnetic member 96 of the short ring may be configured to be opposite as shown in FIGS. That is, a yoke may be provided on the magnetic member side of the short ring, and the end of the yoke may be press-fitted on the stator side. In the configuration of the seventh embodiment, since the stator 89 and the yoke 90 are integrally formed of a magnetic member of a thin plate, the structure is simple and the entire step motor can be made very small. In addition, since the number of press-fitting points of the yoke is small, there is an advantage that the magnetic loss is small and the step motor is an efficient one and the production cost is not required.

[0062]

As described above, according to the first aspect of the present invention, the gaps between the plurality of stators are formed to be wider outward from the center of the stator. As a result, the magnetic gaps in the gaps of the plurality of stators are widened, and the manufacture of the stator is facilitated. In addition, the magnetic gaps are narrowed at the center of the stator, and the magnetic flux is converged to improve the rotation efficiency of the color display. Has an effect.

According to the second aspect of the present invention, the plurality of stators are arranged on the stator receiver in a circular shape with a gap therebetween, and the bottom of the stator receiver is connected in a U-shape on the upper or lower surface of the plurality of stators. At the same time, a rotary bearing is provided at the center of the stator at the bottom of the stator receiver, into which the shaft member of the color indicator is inserted. As a result, the stator receiver and the rotary bearing portion are integrated to simplify the assembly of the stator, and furthermore, the stator receiver and the color indicator can be arranged with high accuracy, and the rotation accuracy and durability are improved. Having.

According to the third aspect of the present invention, a plurality of stators are arranged on the stator receiver in a circular manner with a gap therebetween, and a portion constituting the stator receiver is disposed in each gap of the plurality of stators. As a result, the plurality of stators are formed integrally with the theta receiver, and the resin material enters the gaps between the plurality of stators. As a result, the positions of the plurality of stators can be made highly accurate and uniform. In addition, there is an effect that dust does not enter, and the assembling accuracy of the stator and the rotating accuracy of the color display body are improved.

According to the fourth aspect of the present invention, the plurality of stators are disk-shaped having a center hole, have a plurality of gaps which are magnetically short-circuited at the outer peripheral portion in the diametric direction, and the stator receiving member has a plurality of stator outer peripheral portions. Holding a department. As a result, the connected stator and the stator receiver are integrally formed, and the gaps between the plurality of stators, that is, the positions of the plurality of stators are made highly accurate and uniform, so that the assembling accuracy of the stator is improved. It is easy to manufacture and has the effect of improving the rotation accuracy of the color display.

According to the fifth aspect of the present invention, a plurality of stators have a center hole, and a plurality of magnetic plates having a plurality of gaps in a diametrical direction are laminated, and the outer peripheral portions of the plurality of stators are surrounded. A stator receiver is formed in each gap between the plurality of stators. As a result, the plurality of stators and the stator receiver are integrally formed, and the gaps between the plurality of stators, that is, the positions of the plurality of stators are made highly accurate and uniform, and the assembling accuracy of the stator and the color display body are increased. This has the effect of improving the rotational accuracy of the device and improving the responsiveness by improving the high-frequency characteristics.

According to a sixth aspect of the present invention, a prismatic rod member processed without cutting off a part of a magnetic plate is inserted as a yoke into a plurality of excitation coils. This simplifies the configuration for manufacturing the yoke and the stator. Furthermore, since the tip of the yoke in the insertion direction, for example, a square-shaped tip is press-fitted into a round hole in which a plurality of stators can be easily machined, and the corner in the square is deformed and fixed. Excitation efficiency and rotation efficiency of the color display body are improved by lowering the magnetic resistance of the part, which simplifies assembly and reduces manufacturing costs. It has the effect that it can be lengthened.

According to a seventh aspect of the present invention, there is provided a shaft receiving portion which is provided at a central portion of the stator receiving member and extends perpendicularly to the stator arrangement surface, and is provided with a long hole. The color display body is rotatably arranged by inserting a shaft member of the color display body into the color display body. As a result, the rotational displacement of the color display body is reduced, the rotational friction, vibration, and sound are small, and there is no relative error between the components. In addition, the configuration relating to the manufacture of the stator receiver and the color display body can be simplified and the assembly is easy. It has the effect of.

According to an eighth aspect of the present invention, a yoke in which the same member extends from a stator portion made of a magnetic member is inserted into a plurality of exciting coils, and this tip is pressed into a hole of the magnetic member and fixed. Alternatively, a yoke in which the same member extends from the magnetic member is inserted into a plurality of excitation coils, and this tip is press-fitted into a hole in the stator portion and fixed. As a result, the configuration can be simplified by integrating the yoke and the stator or the magnetic member. As a result, there is an effect that the step motor can be reduced in size and efficiency and the manufacturing cost can be reduced.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an overall configuration of a multicolor information display device in which color display devices of the present invention are arranged as a dot matrix in rows and columns.

FIG. 2 is an exploded perspective view showing a detailed configuration of a display unit in FIG.

FIG. 3 is a cross-sectional view illustrating a configuration of a color display element in FIG.

FIG. 4 is an explanatory view of the first embodiment, and FIG. 4A is a top view illustrating a configuration of a magnetic member serving as a stator. (B)
FIG. 4 is a top view showing a state where a magnetic member is fitted into a stator receiver. (C) is a sectional view taken along line AA in (d). (D) is a top view showing a state where an unnecessary portion of the magnetic member is cut. (E) is a perspective view showing the configuration of (b) with a part cut away.

FIG. 5A is a perspective view illustrating a state where four magnetic members according to a second embodiment are arranged on a stator receiver.
(B) is a perspective view showing four magnetic member pieces which become a stator.

FIG. 6A is a perspective view showing a magnetic member serving as a stator and a state in which a stator receiver is formed outside the magnetic member in the third embodiment. (B) is a perspective view showing a state in which it is cut into a circle after molding and completed.

FIG. 7A is a perspective view showing a magnetic plate serving as a stator and a state where a stator receiver is formed outside the magnetic plate in the fourth embodiment. (B) is a perspective view showing a state in which it has been completed by being cut off after forming.

FIG. 8A is a perspective view showing a state where a yoke is arranged using a magnetic plate in the fifth embodiment. (B) is a figure which shows the state before a prism is inserted in the hole of a stator.
(C) is a figure which shows the state after inserting a prism in the hole of a stator.

FIG. 9A is a sectional view showing a configuration in which a shaft receiving portion is provided in a stator receiver according to a sixth embodiment.
(B) is a perspective view which shows the structure of a stator receiver by a partial cross section.

FIG. 10A is a cross-sectional view illustrating a configuration of a seventh embodiment. (B) is a top view showing the configuration of the integrated yoke and stator. (C) is a top view which shows the structure of the magnetic member which acts as a short ring. (D) is a top view showing a configuration of a magnetic member that functions as a yoke and a short ring in a modification. (E) is a top view which shows the structure of the stator in a modification.

DESCRIPTION OF SYMBOLS 30 Ground plate 32 Driver IC circuit board 34a to 34d, 90 Yoke 36a, 36c, 82, 83 Exciting coil 38, 54, 74 Stator receiver 40, 55a to 55d, 89 Stator 42, 76, 84 Color display Body 44,88 Permanent magnet 50,56 Magnetic member 58,64 Cylindrical member 60 Round bar member 61,70 Magnetic plate 70a-70d Square column yoke 74b Shaft member insertion portion 42b, 76b, 86 Shaft member 84a Shaft member mounting portion 96 Short ring Magnetic material

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Toshio Mitsuhashi 5-6-12 Maeharacho, Koganei-shi, Tokyo Tei Citi Citizen Koganei Plant (72) Inventor Toshiki Kambayashi Tanashi-shi, Tokyo 6-11-12 Honcho Citizen Watch Co., Ltd. Tanashi Factory (56) References JP-A-4-181987 (JP, A) JP-A-4-326391 (JP, A) Japanese Utility Model Application No. 59-15074 (JP) , U) Real opening 61-203782 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) G09F 9/37

Claims (8)

(57) [Claims] 1. A cylindrical color display body having an outer periphery divided by a plurality of colors and having a permanent magnet arranged thereon and rotatably supported, a plurality of stators arranged around the permanent magnet, and a plurality of stators arranged around the permanent magnet In a color display device having a receiver, a plurality of yokes magnetically coupled to the plurality of stators, and an excitation coil for exciting the plurality of yokes, the plurality of stators in the stator receiver, A color display device comprising: a plurality of stators arranged in a circle with a gap between each other; and each gap of the plurality of stators is formed to be wider outward from the center of the stator. 2. A cylindrical color display body which is divided into a plurality of colors at an outer periphery thereof and is rotatably supported on which permanent magnets are arranged, and a plurality of stators and stators arranged around the permanent magnets. In a color display device having a receiver, a plurality of yokes magnetically coupled to the plurality of stators, and an excitation coil for exciting the plurality of yokes, the plurality of stators in the stator receiver, The stators are arranged circularly with a gap therebetween, and the bottom of the stator receiver is connected in a U-shape on the upper surface or the lower surface of the plurality of stators, and the color of the color is formed at the center of the bottom of the stator receiver. A color display device comprising a rotary bearing portion into which a shaft member of a display body is inserted. 3. A cylindrical color display body having an outer periphery divided by a plurality of colors and having a permanent magnet arranged thereon and rotatably supported, a plurality of stators arranged around the permanent magnet, and a plurality of stators arranged around the permanent magnet In a color display device having a receiver, a plurality of yokes magnetically coupled to the plurality of stators, and an excitation coil for exciting the plurality of yokes, the plurality of stators in the stator receiver, A color display device comprising: a plurality of stators arranged in a circle with a gap between each other; and a portion constituting the stator receiver is arranged in each of the plurality of stators. 4. A cylindrical color display body which is divided into a plurality of colors on an outer periphery and is rotatably supported with a permanent magnet disposed thereon, and a plurality of stators and stators disposed around the permanent magnet. A color display device comprising: a receiver, a plurality of yokes magnetically coupled to the plurality of stators, and an exciting coil for exciting the plurality of yokes, wherein the plurality of stators have a center hole. State,
A color display device comprising: a plurality of gaps that are magnetically short-circuited at an outer peripheral portion in a diametric direction; and wherein the stator receiver holds an outer peripheral portion of the plurality of stators. 5. A tubular color display body which is divided into a plurality of colors on an outer periphery and is rotatably supported on which permanent magnets are arranged, and a plurality of stators and stators arranged around the permanent magnets. In a color display device having a receiver and a plurality of yokes that are magnetically coupled to the plurality of stators, and an exciting coil that excites the plurality of yokes, the plurality of stators has a center hole, In addition, a plurality of magnetic plates having a plurality of gaps in the diameter direction are stacked, and furthermore, surrounding the outer peripheral portions of the plurality of stators, each gap of the plurality of stators has a portion constituting the stator receiver. A color display device, wherein the plurality of stators are arranged and supported by the stator receiver. 6. A cylindrical color display body which is divided into a plurality of colors on an outer periphery and is rotatably supported on which permanent magnets are arranged, and a plurality of stators and stators arranged around the permanent magnets. In a color display device having a receiver, a plurality of yokes magnetically coupled to the plurality of stators, an exciting coil for exciting the plurality of yokes, and a magnetic plate on which the plurality of exciting coils are arranged, A prismatic rod member processed without cutting off a part of the magnetic plate is inserted as a yoke into the plurality of excitation coils, and a tip end in an insertion direction is press-fitted into a round hole of the plurality of stators and fixed. A color display device characterized by the above-mentioned. 7. A color display in which the outer periphery is divided into a plurality of colors and includes a cylindrical color display body having a permanent magnet and a shaft member, a stator receiver, a plurality of stators, and a plurality of excitation coils. In the apparatus, a shaft member insertion portion having a long hole extending perpendicularly to the stator arrangement surface is formed at a central portion of the stator receiver, and the color indicator is provided in the long hole of the shaft member insertion portion. A color display device wherein the shaft member is inserted and the color display body is rotatably arranged. 8. A cylindrical color display body having a permanent magnet which is divided into a plurality of colors on the outer periphery and which is disposed inside, and a shaft member rotatably supported, and a permanent magnet in the color display body. An annular stator section surrounding the periphery of the plurality of narrow cross-sectional areas and divided by cut portions, a plurality of excitation coils, and a magnetic member provided on the opposite side of the stator section to sandwich the plurality of excitation coils; The same member extends from the stator portion and is inserted into the plurality of excitation coils, and the tip is press-fitted into a hole of the magnetic member and fixed, or the same member extends from the magnetic member. A color display device comprising: a yoke that is inserted into the plurality of excitation coils and whose distal end is press-fitted and fixed in a hole of the stator portion.