JP2006275581A - Indication plate for clock - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an indication plate for clock having light transmissivity, design variaty, high-class and three-dimensional feelings, and allowing using a fixing struture used at present. <P>SOLUTION: The indication plate 30 is constituted by layering an upper plate 32, a lower plate 34, a plastic plate 36, and a reflection plate 38. The upper plate 32 and the lower plate 34 has openings 32a and 34a. The plastic plate 36 and the reflection plate 38 has light transmissivity. Thus, the openings 32a and 34a of the upper plate 32 and the lower plate 34, the plastic plate 36, and the reflection plate 38 transmit light. The lower plate 34 has a leg 34c fixing with a module. The plastic plate 36 and the reflection plate 38 have notches 36c and 38c linking with the projection 40c of a support frame 40. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a timepiece display plate that is provided with an indicator for displaying time, and covers an electrode (liquid crystal display unit) around a time display unit, a mechanical part, and the like, and particularly requires light transmission. The present invention relates to a watch usable with a watch equipped with a solar cell and a watch equipped with a backlight of a time display unit.

  Generally, a plate-like base material made of metal, plastic, or the like is used for a timepiece display board, and an index or a pattern is formed on the surface by a technique such as plating, printing, or engraving.

  For example, as shown in FIG. 12, a plastic sheet 2 is used as a base material, a printed layer 6 or a metal vapor-deposited layer 4 is formed on the surface, and a metal conductive layer 8 for antistatic or the like is formed on the back surface and laminated. A dial has been proposed (Patent Document 1).

  However, the dial plate using the plastic sheet 2 as a base material has a poor metallic feeling compared to the dial plate using a metal substrate even when metal is deposited on the surface thereof, and lacks a high-class feeling. Moreover, even if the metal vapor deposition layer 4 is laminated on the plastic sheet 2, it is difficult to give a three-dimensional effect, and the dial is thin and gives a flat impression.

  In addition, as shown in FIG. 13, there has been proposed one in which a time display hole 12 is provided in the center of the display plate 10 and a light transmitting hole 14 is formed around the time display hole (Patent Document 2).

  In the case of this display panel 10, since light can be transmitted through the light transmitting holes 14, it is possible to provide a display panel that can transmit light even if a metal substrate is used. However, since both the time display hole 12 and the light transmitting hole 14 are merely through holes, the internal mechanism can be seen if they are opened largely. For this reason, there is a problem that the size and shape of the hole are limited and the design change is poor.

  Further, as shown in FIG. 14, a dial plate has been proposed in which an upper surface plate 16 provided with a cutout window 18 and a lower surface plate 20 having a fixing projection 22 and made of a metal substrate are bonded (Patent Literature). 3).

In this dial plate, it can be expected that the lower surface plate 20 can be seen from the cutout window 18 of the upper surface plate 16 and that the design can be changed by changing the shape of the cutout window 18. However, in this dial structure, the lower surface plate 20 cannot transmit light through the metal substrate, and thus cannot be used for a watch equipped with a solar cell or a backlight.
Japanese Utility Model Publication No. 57-86479 Japanese Utility Model Publication No. 54-141972 Japanese Utility Model Publication No. 3-6584

  The problem to be solved by the present invention is to provide a display panel for a watch that has light permeability, has a design change, a high-class feeling, and a three-dimensional feeling, and can also use a fixing structure currently used. is there.

The timepiece display plate of the present invention comprises an upper plate having an opening, a lower plate having an opening corresponding to the opening of the upper plate, and a plastic plate having light transmittance, the upper plate, The lower plate and the plastic plate are polymerized.
In this timepiece display plate, the upper plate is fixed to the surface of the lower plate, the lower plate has a foot on the back surface, and is fixed by attaching the foot to the module, and the plastic plate is connected to the lower plate. It is fixed to the module between the modules.
Further, the timepiece display plate has the upper plate having a foot on the back surface, and is fixed by attaching the foot to the module, and the lower plate is fixed to the upper plate by engaging the foot, The plastic plate is also fixed to the module between the lower plate and the module.
The plastic plate in the timepiece display plate has a notch in its outer peripheral portion, and is fixed by engaging a protrusion provided on the module in the notch.
Further, the upper plate, the lower plate, and the plastic plate in the timepiece display plate may each have a notch on the outer periphery thereof, and may be fixed by engaging a protrusion provided on the module with the notch. is there.
Further, this timepiece display plate is formed by disposing a reflection plate on the back side of the plastic plate. The reflection plate is fixed to the back surface of the plastic plate. Further, the reflection plate has a notch in the outer peripheral portion thereof, and is fixed by engaging a protrusion provided on the module.
In such a timepiece display board, the upper plate and the lower plate are each formed in a thickness in the range of 50 to 500 μm, and the plastic plate is formed in a thickness in the range of 100 to 500 μm. Moreover, the said reflecting plate is formed in the thickness of the range of 50-300 micrometers. The watch display board is formed to a thickness of 250 to 1800 μm.

  According to the present invention, an upper plate, a lower plate, and a plastic plate having different materials, designs, and the like are polymerized to provide a timepiece display plate having a new sense of light transmission.

  In the timepiece display panel of the present invention, the upper plate and the lower plate are provided with openings, and the light-transmitting plastic plate and the reflecting plate are overlapped, so that light can be transmitted and reflected. In particular, even if a metal plate is used for the upper plate that enhances the appearance quality and the lower plate that enhances the strength, it has a structure that allows light transmission, and the inside of the opening is covered with a plastic plate. It is possible to provide a display panel having a light transmission property with a very high appearance quality without showing internal modules and the like.

  Further, not only can the design of the upper plate be changed freely, but also the variability of the design can be enhanced by polymerizing the upper plate, the lower plate and the plastic plate.

  Further, by polymerizing the upper plate, the lower plate, and the plastic plate, the height difference between the upper plate and the plastic plate is widened, and a three-dimensional display plate can be formed.

  In addition, since the lower plate can be provided with legs, or the outer peripheral part of a plastic plate or the like can be provided with a notch, it can be attached to the module, so that the conventional fixing structure can be used as it is, and workability during manufacturing And standardization as a watch part.

The timepiece display plate of the present invention is obtained by polymerizing an upper plate, a lower plate, a plastic plate and a reflection plate. An opening is provided in the upper plate and the lower plate, and the plastic plate and the reflecting plate have light transmission properties. For this reason, light is transmitted through the openings of the upper and lower plates, the plastic plate, and the reflecting plate. Moreover, by forming the upper plate and the lower plate with metal plates, the appearance quality can be enhanced and a high-class feeling can be obtained, and a fixing structure for fixing the feet to the module by providing feet on the upper plate or the lower plate. It can be used. Moreover, it can also fix by providing a notch in outer peripheral parts, such as an upper board, a lower board, and a plastic board, and engaging with the protrusion of a module. Further, by overlapping the upper plate, the lower plate, and the plastic plate, the distance between the upper plate and the plastic plate is opened, and a three-dimensional effect is obtained.

  1 is an exploded cross-sectional view showing a timepiece display board according to Embodiment 1 of the present invention, FIG. 2 is a plan view of the timepiece display board shown in FIG. 1, and FIG. 3 is a plan view of the upper board shown in FIG. 4 is a plan view of the lower plate shown in FIG. 1, FIG. 5 is a plan view of the plastic plate shown in FIG. 1, FIG. 6 is a half-sectional view of the cross section of the timepiece display plate shown in FIG. It is sectional drawing of the timepiece which shows the state which incorporated the display board for watches into the timepiece.

  The display board 30 in this embodiment is arranged on the upper plate 32 disposed on the front surface side of the display plate 30, the lower plate 34 disposed on the rear surface side of the upper plate 32, and the rear surface side of the lower plate 34. And a reflection plate 38 disposed on the back side of the plastic plate 36.

  The upper plate 32 is made of a metal plate such as a brass plate, phosphor bronze plate, stainless steel plate, or white plate. As shown in FIGS. 1 to 3, the upper plate 32 has an opening 32a for displaying the time by a pointer or the like at the center, and the positions of 3 o'clock and 9 o'clock corresponding to the left and right of the opening 32a in the drawing. Has openings 32b and 32c that also serve as decorations and indicators in the form of Roman numerals III and IX. The openings 32a, 32b, and 32c are formed by a punching method or an etching method. The upper plate 32 in this embodiment is formed by an etching method when the thickness is thin or the shape of the opening is complicated. For example, in the case of the upper plate 32 made of a brass plate, masking is performed on portions other than the portions forming the openings 32a, 32b, and 32c, and an aqueous ferric chloride solution (heated to 40 to 60 ° C.) is used. Etching is performed to form openings 32a, 32b, and 32c. When the upper plate 32 is thick, it is effective to remove the press in terms of work time and the like.

  Further, since the upper plate 32 is located on the surface of the display plate 30, it has a decorative role. For this reason, the surface of the upper plate 32 is provided with an Asahi light pattern, a stripe pattern, a satin pattern, etc., which are formed of minute irregularities, in order to improve the decorativeness. Further, metal plating such as nickel, aluminum, chromium, silver, palladium, rhodium, and gold is applied thereon. In this way, by providing a pattern, plating, or the like on the upper plate 32, it is possible to provide a display panel 30 having a high-class feeling that is excellent in decoration and has a precious metal feeling. In addition to the openings 32b and 32c, the upper plate 32 may be provided with indicators such as numerals, characters, marks, etc., so as to display functions such as time.

  The lower plate 34 has the same planar outer shape as the upper plate 32 and is made of a metal plate similar to the upper plate 32. As shown in FIGS. 1 and 4, the lower plate 34 has an opening 34 a for displaying time at a position corresponding to the opening 32 a of the upper plate 32, and the inner surface of the opening 34 a is in the direction of the back surface. The turning surface 34b is inclined so as to become smaller in diameter. Similarly to the opening 32a of the upper plate 32, the opening 34a in the lower plate 34 is provided with an opening by a press punching method, an etching method, or the like, and the facing surface 34b is formed by grinding. In addition, two legs 34c protruding in the direction of the back surface are attached to the back surface of the lower plate 34 by spot welding or the like. Further, a plating film, a paint film, etc. having a color tone different from that of the upper plate 32 are provided on the surface of the lower plate 34.

The plastic plate 36 is light transmissive and is made of a plastic resin such as polycarbonate resin, polyethylene resin, polypropylene resin, polystyrene resin, polyethylene terephthalate resin, or acrylic resin. As shown in FIGS. 1 and 5, the plastic plate 36 also has the same planar outer shape as the upper plate 32 and the lower plate 34. The plastic plate 36 has a through hole 36a through which a pointer shaft that is positioned at the center of the openings 32a and 34a of the upper plate 32 and the lower plate 34 passes. The plastic plate 36 is provided with a through hole 36b through which the foot 34c of the lower plate 34 passes. Further, on the outer peripheral portion of the plastic plate 36, a notch 36c adapted to a protrusion 40c provided on the support frame 40 that supports the timepiece module is formed near the center of each outer periphery. The plastic plate 36 is most preferably formed by plastic molding using a mold, but can also be formed by press molding a resin plate. Further, since the plastic plate 36 is visible through the openings 32a and 34a of the upper plate 32 and the lower plate 34, an index or pattern that forms a cut scale is formed on the surface, or a pigment or dye is added to the resin. It can also be colored.

  The reflection plate 38 has the same planar shape as the plastic plate 36, and has through holes 38a, 38b and a notch 38c corresponding to the through holes 36a, 36b and the notch 36c of the plastic plate 36, respectively. It has both light transmissive and reflective functions. This reflector 38 is a transparent and reflective material formed by forming a metal thin film on a resin film such as a polyethylene terephthalate resin film or a polyimide resin film by a dry plating method such as a vacuum deposition method, a sputtering method, or an ion plating method. A film plate or a reflective polarizing plate having both functions is used. In the case of the reflection plate 38 having the metal thin film formed by the dry plating method as described above, the light transmittance can be freely set by changing the film thickness of the metal film. The reflector 38 is provided to relieve the dark purple color of the solar cell 42 (FIG. 2) installed behind the reflector 38, and reduces the amount of transmitted light reflected by the solar cell 42 toward the surface and reflects it. The dark purple is softened by the color of the plate 38 itself. Further, it is preferable to select a color tone of the reflection plate 38 that is similar to the color tone of the upper plate 32 or the lower plate 34. In this way, when the reflecting plate 38 has the same color for the upper plate 32 and the like, the presence of the opening 32a becomes inconspicuous, and the entire display plate 30 has a unified color tone and does not cause a partial discomfort. For example, when a silver metal thin film is formed on polyethylene terephthalate resin by vacuum deposition, gloss cannot be obtained if the metal thin film is formed to a thickness in the range of 80 to 100 mm, but it has a silver tone and light transmittance. Can form a reflector of 50 to 60%.

  The upper plate 32, the lower plate 34, the plastic plate 36, and the reflecting plate 38 having the above configuration are stacked as shown in FIG. At this time, the upper plate 32 and the lower plate 34 are fixed with an adhesive, and the plastic plate 36 and the reflecting plate 38 are also fixed with an adhesive. Further, the legs 34c of the lower plate 34 project in the back surface direction through the plastic plate 36 and the through holes 36b, 38b of the reflecting plate 38. As shown in FIG. 7, the foot 34 c is fixed by being inserted into a through hole 40 b of a support frame 40 in which a timepiece module 44 is fitted in a central opening 40 a and accommodated in a timepiece case 46. The plastic plate 36 and the reflection plate 38 are positioned and fixed by engaging the projections 40c of the support frame 40 with the notches 36c and 38c, and are further reliably sandwiched between the lower plate 34 and the support frame 40. It is fixed to. The pointer shaft 44a protrudes in the surface direction from the through holes 36a and 38a of the plastic plate 36 and the reflection plate 38 attached to the support frame 40 in this way, and the hands 44b and 44c attached to the pointer shaft 44a are the upper plate 32. And in the openings 32a, 34a of the lower plate 34 in a rotatable state.

In this embodiment, the upper plate 32 is silver-plated, the lower plate 34 is black nickel-plated, and the plastic plate 36 is white and has a Asahi light weight. Therefore, when the display plate 30 is viewed from the surface direction, the lower plate 34 having a black metallic luster can be seen from the openings 32b, 32c of the upper plate 32 having a silvery metallic luster, and further the upper plate 32 and the lower plate The plastic plate 36 having the white Asahi light pattern can be seen from the openings 32a and 34a of 34. Thereby, the changeability and three-dimensional effect of a design can be emphasized. In addition, external light incident from the openings 32a and 34a of the upper plate 32 and the lower plate 34 passes through the plastic plate 36 and the reflecting plate 38 and is irradiated to the solar cell behind. On the other hand, the light reflected by the solar cell and traveling outward is reflected by the reflecting plate 38 to prevent the solar cell from being seen through to the surface side.

  In this embodiment, the upper plate 32, the lower plate 34, and the plastic plate 36 are all 370 μm thick, and the reflecting plate 38 is 130 μm thick. The total thickness of the display plate 30 is as follows. It is 1340 micrometers including the thickness (50 micrometers x 2 places) of the adhesion part. When the thickness of the display panel 30 is less than 250 μm, flexibility appears and the waist becomes weak, and bending or breakage tends to occur, and 1800 μm is the maximum thickness that can be incorporated into a portable watch. The thickness is set in the range of ˜1800 μm. The thicknesses of the upper plate 32, the lower plate 34, the plastic plate 36, and the reflecting plate 38 are set in consideration of the total thickness of the display plate 30, but other factors such as ease of handling, workability, and deformation due to processing are also considered. The upper plate 32 and the lower plate 34 are set to a thickness of 50 to 500 μm, the plastic plate 36 is set to a thickness of 100 to 500 μm, and the reflection plate 38 is set to a thickness of 50 to 300 μm. As an example of the problem due to the thickness setting, for example, in the case of the plastic plate 36, if the thickness is less than 100 μm, the resin film loses elasticity, handling becomes difficult, and printing work and cutting work may become difficult. Further, with this plastic plate 36, there is a problem that the balance with the pattern formed on the upper plate 32 and the lower plate 34 and the visibility with a three-dimensional effect such as an index provided on the upper plate 32 or the lower plate 34 are deteriorated. May also occur. For this reason, the thickness range is set as described above.

  FIG. 8 is an exploded sectional view showing a modified example in which the reflection plate 38 is removed from the display plate 30 shown in FIG. Depending on the timepiece, it may be necessary to use a display panel having a higher transmittance. In this case, the display panel 30 is formed by the upper plate 32, the lower plate 34 and the plastic plate 36 without using the reflection plate 38. Form. When the display plate 30 is attached to a module using solar cells, the solar cells may be seen through the plastic plate 36. Therefore, the upper plate 32 is plated with black nickel, and the lower plate 34 is plated with gold. By coloring 36 with gray and applying Asahi light, the dark purple color of the solar cell can be made inconspicuous.

  FIG. 9 is an exploded sectional view showing a timepiece display panel according to Embodiment 2 of the present invention. In the second embodiment, a foot 32d is formed on the upper plate 32, and a through hole 34d through which the foot 32d is passed is formed on the lower plate 34. The other configurations are all the same as those of the first embodiment shown in FIG. 1, and the same parts are denoted by the same reference numerals. Two legs 32d of the upper plate 32 are fixed to the back surface of the upper plate 32 by spot welding or the like. In this embodiment, the upper plate 32 and the lower plate 34 are integrated by passing the legs 32d through the through holes 34d without using bonding. The plastic plate 36 and the reflecting plate 38 are both fixed by engaging the notches 36c and 38c with the protrusions 40c of the support frame 40. As described above, in this embodiment, the lower plate 34, the plastic plate 36, and the reflecting plate 38 can be positioned by the legs 32d of the upper plate 32. It becomes possible.

  Also in this embodiment, it is effective to match the color tone of the upper plate 32 and the lower plate 34. For example, the upper plate 32 is subjected to silver plating, the lower plate 34 is subjected to blue coating, the plastic plate 36 is subjected to silver vapor deposition, and the Asahi light is applied.

  Further, the materials and thicknesses of the upper plate 32, the lower plate 34, the plastic plate 36, and the reflecting plate 38 are set to be the same as those in the first embodiment.

Also in the second embodiment, it is possible to remove the reflecting plate 38 in order to adjust the transmittance.

  FIG. 10 is an exploded cross-sectional view showing a timepiece display board according to Embodiment 3 of the present invention, and FIG. 11 is a cross-sectional view of the timepiece showing a state in which the timepiece display board shown in FIG. In the third embodiment, the upper plate 32, the lower plate 34, and the plastic plate 36 are fixed by the protrusions 40 c of the support frame 40 without providing the upper plate 32 or the lower plate 34 with feet. Other configurations are the same as those of the first embodiment, and the same portions are denoted by the same reference numerals. Similar to the plastic plate 36, notches 32 e and 34 e are provided on the outer peripheral portions of the upper plate 32 and the lower plate 34 in the present embodiment. The notches 32e and 34e are provided at positions corresponding to the protrusions 40c of the support frame 40. The height of the protrusion 40 c of the support frame 40 is set to be longer in the surface direction than the first embodiment by the thickness of the upper plate 32 and the lower plate 34. Thus, the upper plate 32, the lower plate 34, and the plastic plate 36 are fixed to the support frame 40 just by engaging the notches 32e, 34e, and 36c with the projections 40c, and are stored in the watch case 46 as they are.

  In the present embodiment, the reflecting plate 38 in the first embodiment is not used, but the reflecting plate 38 can also be used depending on the required transmittance. In that case, the reflector 38 is also fixed to the support frame 40 by providing a notch 38c (FIG. 1) on the outer periphery thereof and engaging the notch 38c with the protrusion 40c.

  Further, when the reflector 38 is not used, as described above, the upper plate 32 is plated with black nickel, the lower plate 34 is plated with gold, the plastic plate 36 is colored gray, and the Asahi light is applied. The dark purple color of the solar cell can be made inconspicuous.

  Further, the materials and thicknesses of the upper plate 32, the lower plate 34, and the plastic plate 36 can be set in the same manner as in the first embodiment, but it is not necessary to attach feet to the upper plate 32 and the lower plate 34. It is possible to set the thickness of 32 and the lower plate 34 to 50 μm which is the lower limit thereof.

  Since the timepiece display plate of the present invention has sufficient light transmittance while using a metal plate, it can be used for a solar cell timepiece that requires the incidence of light from the outside. It can also be used in a timepiece with a backlight that illuminates the time display unit with a light source inside the timepiece.

It is an exploded sectional view showing the timepiece display board concerning Example 1 of the present invention. It is a top view of the timepiece display board shown in FIG. It is a top view of the upper board shown in FIG. It is a top view of the lower board shown in FIG. It is a top view of the plastic board shown in FIG. FIG. 2 is a half-sectional view of a cross section of the timepiece display plate shown in FIG. 1. It is sectional drawing of the timepiece which shows the state which integrated the timepiece display board shown in FIG. 1 in the timepiece. It is a disassembled sectional view which shows the example of a change which removed the reflecting plate from the display board shown in FIG. It is a disassembled sectional view which shows the timepiece display board which concerns on Example 2 of this invention. It is an exploded sectional view showing the timepiece display board concerning Example 3 of the present invention. It is sectional drawing of the timepiece which shows the state which integrated the timepiece display board shown in FIG. 10 in the timepiece. It is sectional drawing which shows the structure of the conventional display board. It is sectional drawing which shows the structure of the other conventional display board. It is sectional drawing which shows the structure of the other conventional display board.

Explanation of symbols

2 Plastic sheet 4 Metal vapor deposition layer 6 Printing layer 8 Conductive layer 10 Display board 12 Time display hole 14 Translucent hole 16 Upper face board 18 Cutout window 20 Lower face board 22 Projection 30 Display board 32 Upper board 32a, 32b, 32c Opening part 32d Foot 32e notch 34 lower plate 34a opening 34b facing surface 34c foot 34d through hole 34e notch 36 plastic plate 36a through hole 36b through hole 36c notch 38 reflector 38a through hole 38b through hole 38c notch 40 support frame 40a opening 40b through hole 40c Projection 42 Solar cell 44 Module 44a Pointer shafts 44b and 44c Pointer 46 Watch case

Claims (11)

An upper plate having an opening;
A lower plate having an opening corresponding to the opening of the upper plate;
A plastic plate having optical transparency,
A timepiece display plate, wherein the upper plate, the lower plate and the plastic plate are polymerized. The upper plate is fixed to the surface of the lower plate, the lower plate has a foot on the back surface, and is fixed by attaching the foot to the module, and the plastic plate is located between the lower plate and the module. The timepiece display board according to claim 1, wherein the timepiece display board is fixed to a module. The upper plate has a foot on the back surface, and is fixed by attaching the foot to the module, the lower plate is fixed to the upper plate by engaging the foot, and the plastic plate is fixed to the lower plate and the module. The timepiece display board according to claim 1, wherein the timepiece display board is fixed to the module. 4. The timepiece display plate according to claim 2, wherein the plastic plate has a notch in an outer peripheral portion thereof, and is fixed by engaging a protrusion provided on the module in the notch. 2. The upper plate, the lower plate, and the plastic plate each have a notch on an outer periphery thereof, and are fixed by engaging a protrusion provided on the module in the notch. Clock display board. 5. A timepiece display plate according to claim 1, wherein a reflection plate is disposed on the back side of the plastic plate. The timepiece display plate according to claim 6, wherein the reflection plate is fixed to a back surface of the plastic plate. The timepiece display plate according to claim 6, wherein the reflection plate has a notch on an outer peripheral portion thereof, and is fixed by engagement of a protrusion provided on the module. The upper plate and the lower plate are each formed in a thickness in the range of 50 to 500 μm, and the plastic plate is formed in a thickness in the range of 100 to 500 μm. Clock display board. The timepiece display plate according to claim 9, wherein the reflection plate is formed to have a thickness in a range of 50 to 300 μm. The timepiece display board according to claim 9 or 10, wherein the timepiece display board is formed to a thickness of 250 to 1800 µm.

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