JPS601593B2 - Guideline setting display mechanism of digital guideline clock - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a guide set display mechanism for a digital guide watch, and particularly improves ease of assembly.

2. Description of the Related Art Analog timepieces are well known in which a drive signal is obtained from a time reference source such as a crystal to drive a motor, and the rotation of the motor is normally decelerated by a clock wheel train to display the time.

A clock with a guide function, which is an analog clock with a guide mechanism, is widely used as a table clock or a timer. In many conventional watches with a reference function, the reference time is displayed using a reference hand, and this system has problems such as poor reference accuracy and difficulty for the user to read the reference time.

In conventional watches with an improved guide function, a structure for digitally displaying the guide time has been devised.

According to this method, it is possible to easily set the guide time in units of hours and minutes, improve the guide accuracy, and provide an easy-to-read guide time display. SUMMARY OF THE INVENTION An object of the present invention is to provide a timepiece with a digital guide, in which a digital guide display board is arranged between a timepiece movement case and a dial, and a guide setting mechanism that is particularly easy to assemble. In order to achieve the above object, the present invention provides a timepiece with a digital guide, which makes it possible to determine whether the guide is set or not set using a digital guide display format. It can be rotated in conjunction with the correction car,
A reference display board in which a numerical part for reference time is provided so as to be visible from the front side to the back side, a colored part disposed on the back side of the reference display board and colored in the same color as the reference display board, and a color different from this colored part. a guide set display board in which colored portions are arranged alternately at predetermined angles, the guide set display board being moved intermittently at predetermined angles by an operator provided outside the case; When the reference time number part is superposed with a colored part colored in a color different from that of the reference display plate, a reference set state is obtained;
A feature is that the reference set time can be visually checked.

Hereinafter, the present invention will be explained in detail based on preferred embodiments.

Embodiments of the invention are illustrated in FIGS.
The figure shows an external view of an analog timepiece according to the present invention. A timepiece movement, which will be described later, is housed within the timepiece exterior 2, and a time display 4 and a reference time display 6 can be displayed. Note that 8 is a standard operation button. FIG. 2 shows the unfolded arrangement of the main wheel train containing the indicator of the watch movement. Upper plate 10, middle plate 12 and lower slope 14
It forms the support frame for the clock train and digital reference display mechanism, and each train is rotatably supported. The second hand wheel 16 is driven by a speed regulating drive source such as a motor (not shown), and seconds are displayed by a second hand (not shown) fixed to the tip of the second hand wheel 18. The rotation of the second hand wheel 16 is transmitted to the minute hand wheel 22 via the third wheel 20, and the minute hand pipe 2
Minutes are indicated by a minute hand (not shown) fixed at the tip of the dial. The rotation of the minute wheel 22 is transmitted to the hour wheel 28 via the date wheel 26, and the hour hand (not shown) fixed to the tip of the hour hand pipe 30 displays the hour. Next, the structure of the reference device will be explained.

The guide device can be roughly divided into a contact structure that allows the notification means to be driven at the set guide time, a digital guide display structure that allows the guide time to be displayed in easy-to-read digital time, and a control device that controls whether the guide is set or not. It consists of a guideline set structure.

The contact structure includes a first contact plate 40, a minute wheel contact 42, a minute indicator detection wheel 44, an hour wheel contact 46, an hour indicator detection wheel 48,
It is composed of a second contact plate 50, a reference switching aid point plate 52, and a third contact plate 54. The first contact plate 40 and the third
A sounding means 60 such as a buzzer and a power source 70 are connected in series to the competition board 54, and the sounding means 60 notifies the approximate time when all of the contacts 40 to 54 become conductive. is set to do so. First contact plate 40'
It is fixed to the middle plate 12, and the saddle piece 40a is always connected to the minute wheel contact 4.
It is in contact with 2. FIG. 3 shows an exploded perspective view of the upper and lower directions of the minute wheel 22 to the hour indicator wheel 48 that are coaxially arranged.

The minute wheel contact 42 is fixed to the minute wheel 22 and the first contact plate 4
The 0 side is formed in an annular shape, and a protruding piece 42a is formed so as to pass through a through hole 22a provided in the minute wheel 22 and protrude toward the minute indicator detection wheel 44 side. The minute indicator detection wheel 44 itself is integrally molded with a pinion 45 made of plastic, and a central pipe 44a made of metal is press-fitted therein. The minute indicator detection wheel 44 is provided with a contact plate 44b on the minute wheel 22 side, which has a fan-shaped portion having the same phase as the protruding piece 42a and is in contact with the center pipe 44a. It is possible to control the approximate time in minutes by setting the position. The hour wheel contact 46 is fixed to the hour wheel 28, the minute indicator wheel 44 side is formed in an annular shape, and the center pipe 44
a, and two protruding pieces 46a.
, 46b are through holes 28a, 28b provided in the hour wheel 28.
It is formed so as to pass through and protrude toward the hour reference detection wheel 48 side. The projecting pieces 46a, 46b are arranged at 180 degree intervals and are set out of phase from the center. The hour indicator detection wheel 48 itself is made of metal,
Convex rear points 48a and 48b are formed on the time inspection wheel 28 side and correspond to the protruding pieces 46a and 46b, respectively, and on the second contact plate 50 side, constant contact pressure is maintained with the contact plate 50. Three recessed portions 48c are formed to allow contact. At this time, the reference detection wheel 48 detects the convex contact 4
The reference time in hours is controlled by the set positions of 8a and 48b. The second contact plate 5 is fixed to the lower slope 14, and one side 50a is connected to the hour reference detection wheel 4 through the through hole 14a of the lower plate 14.
8, and the other saddle piece 50 is formed so as to be able to come into contact with the standard switching contact plate 52. The third contact plate 54 is fixed to the lower slope 14, and the hair piece 54a is formed so as to be able to come into contact with the standard switching contact plate 52. FIG. 4 shows an enlarged perspective view of the main parts including the standard switching contact plate 52.

The guideline switching contact plate 52 is fixed to the non-display side of the guideline set display plate 100, and has four fan-shaped surfaces 52a extended at 90 degree intervals connecting a base 52b. It is formed. The state in FIG. 4 shows a case where the reinforcement piece 50b of the second contact plate 50 and the pocket piece 54a of the third contact plate 54 are in contact with the guideline switching contact plate 52 and the guideline is set.
By rotating the guideline setting display board 100 by 45 degrees from the above state, the guideline is set in a non-set state (Q bird-stopping state).
It can be done. Next, according to Figures 4 and 5,
The guideline set structure for controlling guideline setting/non-setting (or ringing stop) of the present invention will be explained.

FIG. 5 shows a front view of the timepiece movement shown in FIG. 2 with the clock dial removed. Guideline set display board 10
It is rotatably supported on the lower slope 14 and is integrally molded from plastic with an intermittent feed gear 102 having a pitch of 45 degrees. The feed lever 11M is pivotably supported by the lower plate, and two pawls 112, 114 engage with the intermittent feed gear 102. The operating lever 120' is pivotably supported on the lower plate 14, one end 122 is set to be connected to the reference operation button 8, and the other end 124 is swingably engaged with the feed lever 110. The lever 12 receives an elastic holding force in the direction of the arrow 140 from the coil spring 1301.The intermittent feed gear 102, the feed lever 110, and the operating lever 12 are mechanically well-known intermittent feed mechanisms, so the detailed structure will not be described. The explanation will be omitted.To set or unset the target operation (or to stop the ringing), simply press the target operation button 8.

By pressing the guideline operation button 8, the intermittent feed gear 1
02 is sent by one pitch (45 degrees) in the direction of arrow 150, and thereby the reference switching contact plate 52 is similarly rotated by 45 degrees, and can be switched to the reference set or non-set state. The characteristic feature of the standard set configuration of the present invention is that the configuration includes the lower plate 14 which is a watch movement case.
and the dial 80.

Therefore, the work of assembling the guide set configuration is simply by inserting each part into the support pin or shaft support hole of the lower slope 14, which is always simple. Next, the digital guideline display structure will be explained. 6 and 7 are perspective views of the digital guideline display board and guideline set display board 100 viewed from the display direction side. Time guide display board 16 is transparently molded from acrylic resin, styrene, etc., and the display side 16
The surface of 0a excluding the display numbers 162 (from 1 to 12) is colored by means such as printing. Therefore, only the displayed number 162 becomes transparent. The minute guide display board 170 is formed in the same manner, and the display numbers (00 to 5) are displayed on the display surface side 170a.
5) are transparent. This guideline display board 16
0 and 170 are rotatably supported by the lower plate 14, and pinion pins 164 and 174 are integrally formed, respectively. The guide set display board 100 is arranged behind the guide display boards 160 and 170, and the display sides are a white surface 100a and a colored surface 100b.
are formed alternately at 45 degree intervals. Of the hour guide display board 160 and minute guide display board 1701, what can actually be seen from the time display side is the part corresponding to the guide display window 82 provided on the dial 80, and in the figure,
12 poison 00 minutes can be displayed. The state shown in FIG. 6 shows a state in which the guide time display corresponding to the guide display window 82 of the guide display boards 160, 170 is visible. In other words, the color of the guide set display board 100 at the position of the guide display window 82 is the white surface 100a, and the hour and minute display numerals 162 and 172 appear to stand out in white. On the other hand, the state shown in FIG. 7 shows a state in which the reference time display cannot be visually read. This is because the color of the guide set display board 100 at the position of the guide display window 82 is the colored surface 100b, and the hour and minute display numerals 162 and 172 are colored display surfaces 160a and 170a.
This is caused by the fact that they are almost the same color. Therefore, it is understood that depending on the rotational position of the guide set display board 100, it is possible to control whether the digital guide display numbers 162, 172 can be viewed or not. As mentioned above, the guide switching contact plate 52 is fixed to the non-display side of the guide set display board 100, and the fan-shaped surface 5 of this contact plate 52
2a... and the second and third contact plates 50, 54 are in contact with each other as shown in FIG. 6. Therefore, in the guideline set state, the digital guideline display number is 162.
, 172 can be checked, and the digital guide display numbers 162 and 172 cannot be viewed in the non-set state. In other words,
Whether the guideline is set or not can be easily determined based on whether the digital guideline display numbers 162, 172 are visually readable or not. Next, the reference time adjustment structure will be explained.

In FIG. 2, the standard correction axis 200 is the upper plate 10 and the middle plate 1.
2 and the downward slope 14, and a minute guide correction wheel 210 and an hour guide correction wheel 220 are formed. The minute guide correction wheel 210 meshes with the minute guide detection wheel 44 to enable correction of the minute guide set time. The hour guide correction wheel 22 and the hour guide detection wheel 48 mesh with each other to make it possible to correct the hour guide set time. Here, the rotation ratio is set to 12 rotations of the minute indicator detection wheel 44 and 1 rotation of the hour indicator detection wheel 48. The minute guide correction wheel 210 also meshes with the guide display transmission wheel 230. Guideline display transmission wheel 23
0 is rotatably supported on the lower slope 14, and has continuous teeth 232 and intermittent teeth 234 formed in two stages, and the continuous teeth 232 mesh with the pinion 174 of the minute indication plate 170. Further, the intermittent tooth 234 meshes with the pinion 164 of the hour guide display plate 160 so as to enable intermittent feeding. Needless to say, continuous teeth 23
The ratio of the number of teeth between 2 and the intermittent 234 is 12:1. With the above configuration, it is possible to synchronously correct the guideline correction shaft 20, the minute guideline detection wheel 44, the hour guideline detection wheel 48, the minute guideline display board 170, and the hour guideline display board 160. Note that the contact plate 44b on the minute indicator detection wheel 44 and the reference display numerals 172 on the minute indicator display board 170 are set to be synchronized when the clock is installed. The same applies to the convex contacts 48a, 48b and the reference display number 162 on the hour reference display plate 160. Next, the operation will be explained.

First, in order to set the guide, press the guide operation button 8.
Press.

As a result, the reference set display board rotates 45 degrees by one pitch, making the second contact plate 50 and the third contact plate 54 conductive, and the hour and minute display in the reference display window 82 of the dial plate 80. Display numbers 162 and 172 can be read ink. Here, the user can confirm that the guideline has been set by looking at the guideline display window 82. If the estimated operation time needs to be corrected, the estimated operation time can be adjusted using the estimated operation time.
Rotate the guideline correction shaft 200 a number of times to a desired time while looking at the screen. At this point, the guideline setting is completed. After that, the minute hand wheel 22 and the hour hand wheel 28 rotate clockwise as time passes, and the minute hand wheel contact 42 and the minute indicator detection wheel 44 become conductive in units of minutes at the reference setting time.
In the hour unit, the hour hand wheel contact 46 and the hour indicator detection wheel 48 become electrically conductive. In this state, the target alarm sound means 6
0 starts driving and notifies the user that the reference time has arrived. Thereafter, by pressing the guide operation button 8, the user can perform an operation to stop the guide alarm sound means 60 from ringing. Note that after the ringing stop operation, the guideline display numbers 162 and 172 on the guideline display window 82 cannot be viewed, and the user can easily confirm that the guideline is in the non-set state. As described above, the guideline setting mechanism of the present invention has the following features.

'11 When the guide mechanism is set, the digital guide time can be confirmed, and when the guide mechanism is not set, the guide time numerals change to the same color as the guide display board, making the digital guide time invisible. It is possible to determine whether the reference mechanism is set or not set. ■ Since the guideline setting display mechanism is placed between the outer surface of the time display side of the clock mechanism case and the dial, the number of man-hours required to assemble the clock mechanism does not increase.

Further, the guideline setting mechanism does not require complicated processes such as soldering, and can be easily attached to the outer surface of the timepiece mechanism case on the time display side. {3' Since the guide display board is placed close to the dial, the viewing angle from the display window is wide, making it easy to see the guide set time.

{4} Since the guide display plate is disk-shaped, it can be stored in the gap between the dial and the clock mechanism body, and the thickness of the watch body will not increase.

[Brief explanation of drawings]

1 to 7 show preferred embodiments of the present invention, and FIG. 1 is an external view of an analog clock. FIG. 2 is an exploded sectional view showing the expanded arrangement of the main wheel train including the indicator device of the timepiece movement. FIG. 3 is an exploded perspective view of the minute wheel and hour indicator wheel arranged coaxially,
FIG. 3a is an exploded perspective view seen from above, and FIG. 3b is an exploded perspective view seen from below. FIG. 4 is an enlarged perspective view of a guide set configuration including a guide switch contact plate. FIG. 5 is a front view of the clock in FIG. 2 with the dial removed. FIG. 6 and FIG. 7 are perspective views of the digital guideline display board and guideline set display board as seen from the display direction side. 14... Lower plate, 52... Standard conversion contact plate, 80... Number of clock characters, 100...
...Guideline set display board, 102...Gear for intermittent feed, 110...Feed lever, 120...
...Operating lever, 160... Hour guide display board, 1
70...Minute indication board. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7

Claims (1)

[Claims] 1. In a watch with a digital guide that makes it possible to determine whether the guide is set or not set by the digital guide display format, there is a device between the outer surface of the clock mechanism case on the time display side and the dial that can be rotated in conjunction with the guide correction wheel. a reference display board in which a reference time numeral section is provided so as to be visible from the front side to the back side; a colored part disposed on the back side of the reference display board and colored in the same color as the reference display board; and this colored part. and a guide set display board in which colored parts colored in different colors are arranged alternately at predetermined angles, and the guide set display board is arranged at predetermined angles in conjunction with an operator provided on the outside of the case. The reference time numeral section is rotated intermittently, and when the reference time numeral section is superimposed with a colored section colored in a color different from that of the reference display board, a reference set state is obtained and the reference set time can be visually checked. A guideline set display mechanism for a clock with a digital guideline.