JPS6324472Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an arrangement structure of a display board in a battery wristwatch with a display board.

[Conventional technology]

Conventionally, battery-powered wristwatches have used thick batteries in order to extend battery life, and watches with additional display boards, such as calendars, have had a structure in which the display board has been laminated on top of the battery.

[Problem that the invention attempts to solve]

However, when the display board is stacked on top of the battery, the thickness of the display board mechanism is added, so there is a limit to how thin a wristwatch with a display board can be made.

The present invention was developed in view of the above-mentioned drawbacks, and an object of the present invention is to provide a structure that allows a watch with a display panel to be made thinner.

[Means for solving problems]

In order to achieve the above object, the present invention is designed such that the ring width of the display member, when viewed in a plane direction, is placed within the interval between the maximum thickness part of the battery, the maximum thickness part of the coil, and the pointer shaft so that they do not overlap. At a location substantially opposite to the battery and the pointer shaft, the display member is disposed such that its outer periphery substantially coincides with the outer edge of the movement, and when viewed from a cross-sectional direction, the display member is located between the battery and the pointer shaft. The coil is arranged within the maximum thickness of the coil.

〔Example〕

Embodiments of the present invention will be described in detail below with reference to the drawings.
In the embodiments, a calendar display will be used as an example of the display member, but the display member is not limited to this, but it is also possible to display symbols, characters, pictures, etc. on a flat plate, such as display of function marks, tide display, moon phase display, etc. It can be applied to display boards.

FIG. 1 is a top plan view of an embodiment of the battery wristwatch with calendar according to the present invention.
Briefly, on the top surface of the circular main plate 1, there is a reduction gear train mechanism in the center of the figure, an electromechanical converter below, a power supply section and part of the electronic circuit on the right, and the rest of the electronic circuit on the left. A winding stem setting device and part of a calendar correction mechanism are arranged above. The reduction gear train includes a third wheel & pinion 6, a fourth wheel & pinion 7, and a fifth wheel & pinion 8, and the upper portions of these wheels are supported by a wheel train bridge 2. The step motor, which is an electromechanical converter, covers most of the upper surface of the main plate 1, and straddles the coil 4e fixed to the circuit board 4a, which is shaded in the drawing, the rotor 9, and the hole into which it is inserted. The main component is the yoke 32 to which the yoke splicing plate 32a is welded. The coil 4e has a coil core 4n made of magnetic material, a plastic winding frame 4, etc. at both ends, and is attached to the circuit board 4a by a crushed portion 4g, etc. Further, the coil 4e has a spindle shape,
It just fits into the oblong hole 1b of the main plate 1. This hole 1b
can be provided without reducing the strength of the base plate 1 too much because it can take the width from the outer circumference of the base plate 1,
The coil 4e can be designed to have sufficient length and thickness, which is necessary for increasing the output and reducing the thickness of the pulse motor. Reference numeral 35 denotes a magnetic shield block made of magnetic material, which is screwed to the main plate 1. The power supply section includes a battery 33,
A battery receiver 34 provided with a cathode contact portion 34a and a stud 37
The battery receiver 34 has a spring portion 34b narrowing a pin 4j fixed to the circuit board 4a, and has both conductive and fixing functions. Although the battery 33 and the coil 4e are provided with a spring portion 34b, a pin 4j, a yoke 32, etc. in the middle, they are arranged relatively close to each other. The electronic circuit block 4 includes an IC chip 4d, a resin pot 4i, and a trimmer capacitor 4 on a circuit board 4a.
c, a circuit board 4 on which a crystal oscillator 4b is mounted;
The conductive pattern a is omitted to avoid complication of the drawing, but is mainly present on the back surface. Circuit board 4a
is fixed to the base plate 1 with screws 4k, 4l, and 4m via washers 4h, etc. The screws 4k and 4m also have the function of bringing the coil winding core 4n and yoke 32 into close contact. To explain the winding stem setting device and calendar correction mechanism, the pin 11 that fits into the groove of the winding stem 40.
The mandarin duck 11 with b fixed is the mandarin duck shaft 11a.
The bolt 12, which can be rotated around , and has a V-shaped hole that loosely fits into the dowel pin 11c, is engaged with the groove of the screw wheel 10, and when the winding stem 40 is pulled out, as is well known, The Tsuzumi wheel 10 is rocked. There is a back presser 16 on the back of Kannuki 12,
Similarly, the tip of the spring is brought into contact with the dowel pin 11c. The second oscilipin 11d has
When the reset lever 17 is engaged and the winding stem 40 is pulled out the most, it rotates counterclockwise and the brake part 17a comes into pressure contact with the tips of the teeth of the fourth wheel & pinion 7 to perform the braking function. Although not shown, the contact spring 17b bent upward at the same time comes into contact with the pattern on the circuit board 4a, and also resets the electronic circuit. Quick correction lever 21 that straddles the winding stem 40
The bent portion 21a suppresses displacement of the winding stem 40 in the upper surface direction, and the bent portion 21a is used as a fulcrum by hooking a screwdriver onto the collar of the pin 11b when removing the pin 11b of the mandarin duck 11 from the winding stem 40. The rod 21b is a spring that presses the mandarin duck 11 against the base plate 1, and the other rod 21c has a quick-correction transmission wheel 22 that meshes with the suspension wheel 10 rotatably attached to its tip. The central portion thereof has a bent portion that engages with the bottom bin 11c, and a spring force similarly acts in the direction of the base plate 1. This bent portion is raised at the middle of the operating stroke of the oscilloscope pin 11c, so that when the winding stem 40 is in the second of the three drawer positions, the quick correction transmission wheel
22 is moved in one direction of the main plate by a spring force. Reference numeral 23 denotes a quick-correction transmission wheel [] rotatably attached to the main plate 1 with a stud 23a, which is always engaged with the quick-correction transmission wheel [22], and on the other hand, is engaged with the quick-correction transmission wheel [24]. are also meshing. The stud 24b has an appropriate sliding torque with the quick-correction transmission wheel [ ] 24, and transmits its rotational operation to the quick-correction mechanism on the back surface of the base plate 1. Reference numerals 36a and 36b are eccentric shafts for fixing the dial, and the feet of the dial are inserted into holes 1c of the main plate 1, etc. 38a and 38b are side set screws, and one screw 38a prevents the battery 33 from wobbling.

Figure 2 is a plan view seen from the back side of Figure 1, with the calendar device roughly on the upper right, the power supply section on the lower left, and the coil 4e already shown in the hole 1 at the bottom.
It is visible through b. The date plate 41 has its center of rotation at a point 41a, and above it is a day plate 42, most of which is illustrated by two-dot chain lines, and a day star wheel 4.
They overlap with 2a in the center. Therefore, winding stem 4
Since the calendar window of the dial is located above 0 in the axial direction, the outer shape of the day plate 42 is cut out, and the characters 42b are printed offset from the radial direction. The date wheel plate 18, which is located on the outer periphery of the day plate 42 and inside the date plate 41, supports the groove of the hour wheel 14 with a spring portion 18a, and the date wheel 19 is also rotatable with a pin 19a. It is installed. Three teeth are carved on the shaft 14a of the hour wheel 14, and the remaining teeth form a circumference with a pitch circle diameter. The daily schedule car 19 has 2
Four pairs of toothed portions and locking portions 19c are provided, and two of these toothed portions, which are point symmetrical, are provided with long toothed portions 19b, etc. This long tooth portion 19b meshes with a tooth portion on the inner periphery of the date plate 41. The shaft 14 of this hour wheel 14
The engagement between a and the date wheel 19 is a kind of Geneva mechanism, and the date wheel 19 rotates 1/2 revolution per day. As in the embodiment, this Geneva mechanism can minimize the space required for the calendar mechanism. Furthermore, the reason why both are placed on the date dial plate 18 is to prevent misalignment during disassembly and assembly. The thin plate inside the day plate 42 is a day back presser 30, which is held down by one screw and the day dial plate 18 at three locations 30c, 30d, 30e.
It is attached to the base plate 1 by. Daily wheel board 18
This part has a slight bend in height.
The day back presser 30 is further provided with two bent spring portions 30a and 30b, which press the day action lever 28 and the day action lever 29, respectively. Under the Hino Ura presser 30, there is a Kotetsu car 15, a Hino Ura car 13,
There is a day transmission wheel 20 that meshes with the long toothed portion 19b of the date dial 19, and furthermore, there is a quick correction transmission wheel 20 that engages with the long toothed portion 19b of the date dial 19, and furthermore, there is a quick correction transmission wheel 20 whose rotation is transmitted via a shaft 24a from the quick correction transmission wheel 24 explained in FIG. There is also a transmission wheel 25, a swinging lever 26 having an appropriate sliding torque with the shaft 24a, and a quick correction wheel 27 mounted on the swinging lever 26.
During quick correction, the direction of rotation of the swing lever 26 is determined by the direction of rotation of the winding stem 40, so the quick correction wheel 27 meshes with either the day star wheel 42a or the date plate 41. Incidentally, this part of the date back presser 30 is bent slightly upward, and slightly receives the teeth of the date plate 41. The date plate holder 31, most of which is indicated by two-dot chain lines and shaded, has almost the same shape as the date plate 18, and the major difference is that it has two legs that straddle the date plate 41. It is. By screwing this leg, the date plate holder 31 itself and the date wheel plate 18 are pressed against the base plate 1. 3 is a third wheel holder, which is fixed to the main plate 1 with a pin 3a or the like. The outer diameter of the battery 33 located at the lower left of the drawing slightly overlaps with the date plate 41. At the lower right side of the drawing, the coil 4e is close to the outer periphery of the date plate 41. 34
is the battery holder visible through the hole in the base plate 1.

FIG. 3 is a main sectional view showing a combination of sections taken along lines A--A in FIG. 1 and A'--A' in FIG. A trimmer capacitor 4 is installed on the circuit board 4a.
C is fixed with its shaft inserted into the hole in the circuit board 4a, and the crystal oscillator 4b is similarly inserted into a large hole in the circuit board 4a to prevent the movement from becoming thick. 4p is crystal oscillator 4
This is a spacer that also has a buffering effect, using the cold welded flange shown in b. The center of the drawing is the gear train section, which includes the third wheel & pinion 6, fourth wheel & pinion 7, which have already been explained.
There is a fifth wheel 8, a rotor 9, and a gear train bridge 2. The mounting position of the coil 4e with respect to the circuit board 4a is determined via the coil winding frame 4, and its fixation is performed by the crushed portion 4g.
Do it with Since we want to use a smaller battery while improving the conversion efficiency of the motor and reducing power consumption, the coil 4e is designed so that its upper part is almost at the same height as the train wheel bridge 2 and the circuit board 4a, which fill the upper surface of the movement. , the lower part is approximately at the same height as the lower surface of the main plate on the lower surface of the movement, and the coil thickness is as large as possible. The hole 1b of the main plate 1 has a minimum size to accommodate the coil 4e and the winding frame 4. The yoke 32, whose height position is determined according to the height position of the magnet 9a of the rotor 9, has a coil 4e made approximately equal in thickness to the movement, so that the winding core 4n is slightly bent. 32a is a yoke splint plate. Calendar device including date plate 41 and coil 4e
Since the coils 4e are not overlapped, the coil 4e can be made sufficiently thick. 4h is a washer caulked to the circuit board 4a to prevent damage to the circuit board 4a due to the tightening force of the screw 4k and to prevent the screw head of the screw 4k from protruding too much from the top surface of the circuit board 4a. be. A center wheel 5 and a cylinder pinion 5a having an appropriate sliding torque are loosely fitted to the center shaft 1a which is pressed and fixed to the main plate 1, and the shaft 1 which is fixed to the hour wheel 14 is attached to the outside thereof.
4a is loosely fitted. The maximum diameter portion of the shaft 14a has several teeth, and the date wheel is rotatably fixed with studs 19a to the date wheel plate 18, which has a spring portion 18a that supports the shaft 14a of the hour wheel 14. 19. A date plate 41 whose inner periphery is close to the maximum diameter portion of the shaft 14a of the hour wheel 14 and a date plate holder 31 which is in close contact with the dial 39 are also drawn in the center right of the drawing. Daily train car 1
The day transmission wheel 20, which engages and rotates once a day with the day transmission wheel 9, is located between the day back presser 30 and the main plate 1, and its rotational movement is controlled by the day transmission wheel 20, which is rotatably attached to the main plate 1 with screws 42c, and rotates once a day. The signal is transmitted to the day star wheel 42a to which the plate 42 is fixed. At the left end of the drawing, there is a date plate 41 and a day plate 4.
It is shown that 2 almost coincides with the outer circumference of the main plate 1.

Figure 4 shows the route from Figure 1 B-B to Figure 2 B-B, and Figure 1 B'-B', B''-B'', B-B.
It represents the cross section along the line. The mandarin duck 11 to which the pin 11b that enters the groove of the winding stem 40 is fixed,
The rod 21 of the quick correction lever 21 moves in the thickness direction of the movement by the head of the rear pin 11b, in addition to actuating the back presser 16 and the canopy 12 having a cam part loosely fitted to the rear pin 11c.
c is also activated. The tension wheel 10 is operated by a cannula 12 and depends on the pull-out position of the winding stem 40, but the teeth are engaged with the small iron wheel 15 or are rotatably placed on the shaft 21c of the quick correction lever 21 with a stud 22a. It also meshes with the modified transmission car []22. The other side lip pin 11d is the reset lever 17
The brake portion 17a presses the fourth wheel & pinion 7 at the time of resetting. Hinoura wheel 1 meshing with hour wheel 14
3 and the small iron car 15 are supported by a Hino back presser 30, and the protrusion 30 supports the Tsuzumi car 10 during disassembly and assembly. The battery 33 has an insulating coat 34c
The lower part is supported by the battery holder 34 which is
The spring portion 34b is removably fitted into a pin 4j fixed to the circuit board 4a. 34a is a cathode contact spring with the battery 33, and its free state is shown by a two-dot chain line. The anode contact spring 37, which is pressed upward by the circuit board 4a, is loosely fitted into the stud 37a. The ring width of the date plate 41 is the pointer shaft of the hour wheel 14 etc. and the battery 33.
However, a part of the date plate 41 overlaps with the battery 33, and the overlapping state is shown in plan with the dashed double-dotted line slightly to the right of the center of the drawing. Even though they overlap slightly, in cross section they use the shoulder of the joint between the cathode and anode of the battery 33, so care has been taken to ensure that they do not overlap with the thickest part of the battery 33. This does not make the movement thicker. A window 39b of the dial 39 allows a date plate 41 and a day plate 42 to be displayed continuously.

FIG. 5 is a sectional view taken along line CC in FIG. 1.
The eccentric shaft 36a that compresses the plastic resin tube 1d in the hole of the main plate 1 is connected to the leg 39a of the dial 39.
and fasten it by its brim. The IC chip 4d directly fixed to the circuit board 4a is covered with a resin pot 4i. Since the gear train bridge 2 has been made thinner, the upper part of the gear train is shorter than the length of the guide part with the strut 2b, making it difficult to assemble. Assembling is made easier by having the receiver 2 guide. A state in which the leg portion of the date plate holder 31 that straddles the date plate 41 is screwed is also briefly shown.

Figure 6 follows Figure 1 D-D and Figure 2 D-
It is a cross-sectional view of the route leading to D. When the adjustment wheel 10, which is loosely fitted into the corner of the winding stem 40, is set to the calendar adjustment state, it is at the position 10' shown by the two-dot chain line, while the shaft 21c of the quick adjustment lever 21
A quick-fix transmission vehicle attached with rivets 22a to
22 is also located at 22' indicated by a two-dot chain line, and the rotation of the winding stem 40 is eventually transmitted to the quick correction transmission wheel 23 rotatably mounted on the main plate 1 with studs 23a. The quick-correction transmission wheel [ ] 24 is sandwiched between a stud 24b having an elastic collar and a shaft 24a, and generates an appropriate sliding torque to transmit rotation to the quick-correction transmission wheel [ ] 25. This shows that the date wheel 19 is the date plate 41.
Or, to prevent damage even if a quick correction operation is performed when the day train wheel 20 and the day star wheel 42a are engaged. The swing lever 26 on which the quick correction wheel 27 is placed is
It is fitted to the shaft 24a so as to generate an appropriate sliding torque. Therefore, depending on the direction of rotation of the shaft 24c, whether the quick correction wheel 27 meshes with the day star wheel 42a or not.
It engages with the date plate 41 as shown by the two-dot chain line 27'.
These are attached to the Yodenkosha 20 by the Hino Ura presser 30.
It also supports. The head of a screw 42c that rotatably fixes the day star wheel 42a supports the dial 39. Another set screw 4l for fixing the circuit board 4a is also shown.

FIG. 7 is a sectional view taken along line E-E in FIG. 2, and the third wheel and pinion bridge 3 fixed to the main plate 1 with rivets 3a or the like supports the bottom of the third wheel and pinion 6. The day movement control lever 29 for rotationally positioning the day star wheel 42c is connected to the above-mentioned stud 3a.
, and is supported by a Hino back presser 30.

FIG. 8 is a cross-sectional view taken along line F-F in FIG. It is shown that the wheel plate 18 is pressed and the dial plate 39 is further supported. Further, this figure shows a state in which the long toothed portion 19b of the date dial 19 is meshed with the toothed portion of the date plate 41.

In this embodiment, the date plate 41 is located within the outer diameter of the main plate 1, but it is also possible to protrude a little further than that.

[Effect of idea]

As described above, the present invention can provide a battery-powered wristwatch with a display board that is much thinner than conventional wristwatches as a result of appropriately arranging a relatively large-volume battery, a thick coil, and a display member. At the same time, compared to conventional batteries that have a thinner battery and a larger outer diameter, when the outer diameter of the battery is reduced as in the present application, it is easier to reduce the number of parts such as electronic circuits and winding stem setting devices that are inevitably crowded on the top of the module. It can be arranged with plenty of room, and the hole position for the dial foot can be set optimally with plenty of room, which has a great effect on making the watch thinner and having more room in designing the layout of parts.

[Brief explanation of the drawing]

FIG. 1 is a top view of an embodiment of a battery wristwatch with a calendar according to the present invention, and FIG. 2 is a back view thereof. Figure 3 is a sectional view from Figure 1 A-A to Figure 2 A'-A', and Figure 4 is a cross-sectional view from Figure 1 B-B to Figure 2 B-B.
5 is a sectional view taken along line C-C in FIG. 1, and FIG. FIG. 7 is a sectional view taken along the route taken along line D-D in FIG. 2, FIG. 7 is a sectional view taken along line EE in FIG. 2, and FIG. 8 is a sectional view taken along line FF in FIG. 1... Ground plate, 2... Gear train bridge, 4... Electronic circuit block, 14... Hour wheel, 33... Battery, 41...
Day board, 42...Day board.

Claims (1)

[Scope of utility model registration request] In a battery-powered battery-powered wristwatch with a pointer display, there is a button-shaped battery, a coil of a motor that drives the pointer placed near the battery, and a button-shaped battery located below a shielding member such as a dial. It has a ring-shaped plate-like display member that displays a part of characters, symbols, etc. through the window of the shielding member, and the ring width of the display member is equal to the maximum thickness of the battery and the The maximum thickness of the coil and the pointer shaft are arranged within a gap so as not to overlap each other, and the outer periphery of the display member is arranged to substantially coincide with the outer edge of the movement at a position substantially opposite to the battery or the coil. A battery wristwatch with a display board, characterized in that the display member is disposed within the maximum thickness of the battery and the coil when viewed from a cross-sectional direction.