JPH0313950Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Technical field of invention] This invention relates to an electronic wristwatch.

[Prior art]

Conventionally, electronic wristwatches have a rotating bezel installed around the top of the watch case, and by rotating the rotating bezel, a push button switch placed below the bezel is activated to adjust the time, etc. It has been known. In this case, in order to operate the push button switch by rotating the rotating bezel, a cam projection is formed on the lower surface of the rotating bezel, and the cam projection is used to push down the push button of the push button switch.

[Problems with conventional technology]

However, in electronic watches like the one mentioned above,
When the rotating bezel is turned, the cam protrusion on the rotating bezel comes into direct contact with the push button of the push button switch and pushes the push button down, so the rotating bezel does not rotate smoothly and the push button may be damaged. It had some drawbacks such as being easy to use.

[Purpose of invention]

This invention was made in consideration of the above-mentioned circumstances, and the object is to provide an electronic wristwatch in which the movement of the rotating bezel can be made smooth and the push button switch can be operated satisfactorily.

[Key points of the idea]

In order to achieve the above-mentioned object, this invention disposes an operating member between the rotary bezel and the pushbutton switch to operate the pushbutton switch in accordance with the movement of the rotary bezel.

〔Example〕

An embodiment of this invention will be described below with reference to FIGS. 1 to 6.

FIG. 1 shows a digital display type electronic wristwatch, and numeral 1 in the figure is a watch case. A display section 2 for digitally displaying the time is provided at the center of the watch case 1, and a rotating bezel 3 is rotatably attached around the display section 2 at the top of the watch case 1. Further, a changeover switch 4 and a lighting switch 5 are provided on the side wall of the watch case 1. The changeover switch 4 switches the time display displayed on the display section 2, and the lighting switch 5 lights up an illumination lamp (not shown) to illuminate the display section 2. Furthermore, a set switch 6 and a select switch 7, which will be described later, are arranged below the rotating bezel 3. These switches 6 and 7 are used to correct the time, etc. The set switch 6 corrects the time displayed on the display section 2 by adding "+1" at a time, and the select switch 7 corrects the time. It carries the time (hours, minutes, seconds) and displays it blinking.

FIGS. 2 and 3 show cross sections of essential parts of the electronic wristwatch. That is, there is a second watch case inside the watch case 1.
As shown in the figure, an upper housing 8 and a lower housing 9 are attached. A circuit board 10 is arranged between the upper housing 8 and the lower housing 9. On this circuit board 10, electronic components such as an LSI 11 are attached, and a liquid crystal display device 12 for displaying time is arranged via an interconnector 13.

Further, a watch glass 14 is attached to the watch case 1 above the liquid crystal display device 12 via a gasket 15 . A printed portion 14a is provided around the lower surface of the watch glass 14, and the printed portion 14a has "SET" and "SET" characters as shown in FIG. "SELECT" is printed.

Furthermore, the rotating bezel 3 is provided on the outer periphery of the upper part of the watch case 1 so that it does not fall out upwards.
The watch case 1 is rotatably attached, and a switch housing 16 is formed in the watch case 1 corresponding to the lower side of the rotating bezel 3. This switch storage section 16 penetrates vertically from the top to the inside of the watch case 1, and as shown in FIG.
is located.

That is, the switches 6 and 7 are the push buttons 17 and 18.
, leaf springs 19 and 20 that elastically push up the push buttons 17 and 18, and electrodes 21 and 22 that the leaf springs 19 and 20 make contact with and separate from. The push buttons 17 and 18 are arranged in the switch housing 16 side by side with a partition wall 16a in between so as to be movable up and down. is installed,
Stoppers 17b and 18b are attached to the lower ends of the push buttons 17 and 18, respectively, to prevent the push buttons 17 and 18 from coming off upward. In this case, the upper ends of the push buttons 17 and 18 are arranged below the upper surface of the switch housing 16, and the upper end surface of the partition wall 16a is similarly formed low, separating the upper ends of the push buttons 17 and 18 from the partition. It is flush with the upper end surface of the wall 16a.
Further, the leaf springs 19 and 20 are connected to each push button 17 and 1.
8, and elastically pushes up the push buttons 17 and 18, and is adapted to bend and deform up and down as the push buttons 17 and 18 move up and down. Further, the electrodes 21 and 22 are formed on the circuit board 10 extending below the switch storage portion 16, and are spaced apart from and facing below the tips of the leaf springs 19 and 20. The ends of the two are adapted to be in contact with each other so as to be able to come into contact with and separate from each other.

On the other hand, an operating member 23 having a circular cross section is disposed between the rotating bezel 3 and the switches 6 and 7 on the switch storage portion 16. As the rotating bezel 3 rotates, the operating member 23 is pushed by inverted trapezoidal cam protrusions 3a, 3b, . It rolls on each upper end surface and is pressed down by each lower end surface of the cam projections 3a, 3b, . . . to push down one of the push buttons 17, 18.

Note that a back cover 24 is attached to the lower part of the watch case 1, as shown in FIG.

Next, the operation of the electronic wristwatch will be explained with reference to FIGS. 3 to 6.

Normally, when the time is displayed on the display section 2, the operating member 23 is placed in the recess between the cam protrusions 3a and 3b of the rotating bezel 3, as shown in FIG. In the select switch 7, each push button 17, 18 is pushed up by a leaf spring 19, 20, and each leaf spring 19,
20 is spaced apart from electrodes 21 and 22 and is in an off state.

In this state, if you want to adjust the time, first operate the changeover switch 4 to adjust the time on the liquid crystal display 12.
The time is displayed in a correctable manner, and then the rotating bezel 3 is rotated in the direction of arrow X, that is, in the "SELECT" direction. Then, the cam protrusions 3a, 3b, . roll upwards. When the rotating bezel 3 further rotates in the direction of the arrow X, the operating member 23 is pressed down along the right inclined surface of the cam projection 3b while in contact with the side wall of the switch housing 16, as shown in FIG. As shown, the lower end surface of the cam projection 3b is pushed down the most. In this way, the actuating member 2
3 is pressed down, the push button 18 is pushed down against the elastic force of the leaf spring 20, bringing the tip of the leaf spring 20 into contact with the electrode 22 on the circuit board 10. As a result, the select switch 7 is turned on and the blinking displayed time is carried forward. In other words, the minute digit is carried from the second digit, which is the smallest digit, to the minute digit, and the minute digit is displayed blinking to enable correction.

Furthermore, when the rotating bezel 3 is further rotated in the direction of the arrow X in this state, the cam protrusion 3b moves from above the operating member 23 in the direction of the arrow X. A recess between it and the next cam projection 3c is located. Then,
The actuating member 23 becomes free in the vertical direction, and the fifth
As shown in the figure, the push button 18 is pushed up by the leaf spring 20, and the actuating member 23 is pushed up by the cam protrusion 3.
Push it up into the recess between b and 3c. As a result, the leaf spring 20 is separated from the electrode 22, and the select switch 7 is turned off, but the carry-up blinking display is held as is. When the rotating bezel 3 is subsequently rotated in the direction of the arrow X, the operating member 23 is pushed down by the cam protrusion 3c in the same manner as in the case of FIG. 4 described above, and the select switch 7 is turned on again. As a result, the blinking digit is carried up. In other words, the minute digit is carried over to the hour digit.

As described above, when the rotary bezel 3 is rotated in the direction of the arrow X, that is, in the "SELECT" direction, the select switches 7 are sequentially turned on by the actuating member 23, and the blinking display is sequentially increased accordingly.

On the other hand, if you want to correct the time in the desired digit,
Turn on the select switch 7 as described above,
After flashing the desired digit, e.g. the minute digit,
All you have to do is rotate the rotating bezel 3 in the direction of arrow Y, that is, in the "SET" direction. Then, the actuating member 23
As shown in FIG. 5, the bezel 3 is first pushed up by the select switch 7 and placed in the recess between the cam projections 3b and 3c.
As the button rotates, it rolls in the direction of arrow Y as shown in FIG. 6, and is sent from above the push button 18 onto the partition wall 16a. After this, when the rotating bezel 3 rotates further,
The actuating member 23 is connected to the partition wall 16 by the cam protrusion 3b.
It rolls onto the push button 17 of the set switch 6 from above a, is placed on this push button 17, and in this state is pushed down by the cam protrusion 3b. Then, the set switch 6 is turned on in the same way as the select switch 7 described above. As a result, "+1" is added to the blinking time, and the time is corrected. In this case, when the rotating bezel 3 is further rotated in the direction of arrow Y, the set switch 6 is turned off once and then turned on again. By repeating this,
"+1" is added to the flashing times in sequence.

Incidentally, in order to cancel the time adjustment, the changeover switch 4 may be operated.

In this way, according to the above-mentioned electronic wristwatch, there is an actuator having a circular cross section between the rotating bezel 3 and each switch 6, 7, which operates one of the switches 6, 7 in accordance with the movement of the rotating bezel 3. Since the member 23 is arranged, the cam projections 3a, 3b of the rotating bezel 3...
The rotating bezel 3 can be moved smoothly without directly touching the push buttons 17 and 18 of each switch 6 and 7, and each switch 6 and 7 can be operated well. It is also possible to measure the improvement in durability.

In addition, in the electronic wristwatch described above, the actuating member 23 presses the push button 1 as the rotating bezel 3 rotates.
7 or 18, so even if the rotating bezel 3 is rotated more than one turn (360 degrees), the other switch will not operate, and only the switches in the direction of rotation will be operated in sequence. can be done.

In the above embodiment, the operating member 23 having a circular cross section is disposed between the rotating bezel 3 and each switch 6, 7, but the invention is not limited to this, and as shown in FIG. An actuating member 25 having a diamond-shaped cross section may be arranged. In this case, as the rotating bezel 3 rotates, the actuating member 25 is pushed by one of the cam protrusions 3a, 3b, etc., and tilts to the left or right, and when tilting, each switch 6, 7 Either one of them is activated. Even in such a case, the same effects as in the above-mentioned embodiment can be obtained.

Furthermore, this invention is not limited to the circular or diamond-shaped actuating members 23 and 25 as described above, but can also be applied to actuating one of the switches 6 and 7 in accordance with the movement of the rotating bezel 3. Any actuating member may be used.

Furthermore, this invention is not limited to the switches 6 and 7 as described above, and can be applied to other switches, and the number of switches does not have to be two, but may be two or more. . Further, this invention is not limited to the above-mentioned digital electronic wristwatch, but can be widely applied to analog, digital/analog, and other electronic wristwatches.

[Effect of idea]

As explained above, according to the electronic wristwatch according to the invention, an operating member is disposed between the rotating bezel and the push button switch to operate the push button switch in accordance with the movement of the rotating bezel, so that the rotating bezel can be moved smoothly. It has the advantage that it can be moved and the push button switch can be operated well.

[Brief explanation of the drawing]

Figure 1 is an external plan view of the electronic wristwatch of this invention.
Figure 2 is a sectional view taken along the - line in Figure 1, and Figure 3 is a cross-sectional view of Figure 1.
4 to 6 are sectional views showing operating states, and FIG. 7 is a sectional view showing a modified example. 1... Watch case, 2... Display section, 3... Rotating bezel, 6, 7... Switch, 23, 25... Operating member.

Claims (1)

[Claims for Utility Model Registration] A watch case having a switch storage section in which at least a pair of switch storage holes are formed through a partition wall, and a pair of push buttons arranged in each of the pair of switch storage holes of the watch case. a rotating bezel with an inverted trapezoidal cam protrusion formed on the lower surface, which is provided on the upper part of the watch case to cover the switch housing; When the rotary bezel is rotated, the upper portion is pressed by the cam protrusion and slides in the rotational direction, and presses the pushbutton in the rotational direction of the pair of pushbutton switches to operate the switch. An electronic wristwatch comprising an operating member.