JP2512545Y2 - Watch movement - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a pointer display type electronic timepiece having an additional function such as an alarm function.

[Conventional technology]

Conventionally, as a clock with an additional function that is a function other than the normal time, a clock with an alarm notification that alarms when the set time comes, a clock with a chronograph that shows the elapsed time from the set time, set There are known clocks with a timer that shows the remaining time from the time, dual time clocks that show the current time in various parts of the world, and a moon display clock that shows the phases of the moon.

Many conventional timepieces having additional functions other than displaying the normal time are fitted with a movement made specifically for that purpose.

A watch movement with additional functions other than displaying the normal time has more functions than the standard movement. Therefore, the number of parts is large and the assembly process is long, and many jigs and tools to be specially prepared are required. Furthermore, the demand for movements of watches with additional functions other than displaying the normal time is smaller than the demand for standard movements, so
The specially prepared jigs and tools had high depreciation costs, and the price of the clock movement was high.

Among the watches with additional functions other than displaying the normal time, in the movement of the alarm notification timepiece that is a typical example, it is known that a frame holding the alarm function is provided on the outer periphery of the standard movement. There is. A movement based on such an idea is disclosed in, for example, JP-A-60-15.
2980 and JP-A-60-154185.

[Problems to be solved by the invention]

However, in the case of the alarm notification timepiece disclosed in the above publication, it is difficult to obtain the alignment accuracy between the standard movement and the frame in the radial direction and the length direction. Therefore, the rotary member held on the frame does not rotate the rotary shaft on the standard movement. As a method of notifying the user of the alarm notification time, the rotation disc cannot be transmitted to the member having the rotation disc, and since only the rotation disc can be displayed, the strength in the thickness direction of the rotation disc cannot be increased and the contact pressure can be increased. However, contact failure such as chattering due to vibration occurred. In addition, each part of the rotating disk gear, bearing, contact, and insulation has different characteristics, and it is difficult to meet all of the required characteristics in terms of material and mechanism. I had to be dissatisfied in terms of product life and cost.

In addition, a clearance for product tolerance of both parts, an alignment part, and a connecting member part must be provided at the part where the standard movement and the frame are combined, and further, the accuracy of the alignment between the standard movement and the frame is improved. Since it does not come out, it is necessary to increase the terminal area of the contact that electrically transmits between both members, and moreover, since the perpendicularity between the standard movement and the frame is not accurate, the time display hand and the movement Since the interval must be increased, the timepiece cannot be made smaller and thinner from the above.

Further, in the case of the above publication, it is difficult to add a calendar display function which is normally used such as a date display function and a day display function for expanding variations of the timepiece. FIG. 6 is a sectional view showing the structure of the timepiece disclosed in JP-A-60-152980. The disk 36 for rotating and displaying the alarm time is supported by a ring-shaped frame 37 placed on the outer periphery of the movement 35, and the alarm set time is set by the rotational position relationship with the ring 38 used as a dial. In addition to displaying, it also constitutes a switch for judging whether the alarm time has arrived. Movement in this configuration
It is extremely difficult to dispose the date plate 39, which is indicated by the alternate long and short dash line on the dial side in response to the rotary drive from the 35, so as to avoid interference with the disc 36. Since the date plate 39 displays a calendar by switching the rotation with respect to a fixed window in which a part of the dial is cut out, it is possible to interpose a disc 36 that is a rotating member between the dial and the date plate 39. This is because it is difficult. Even if it is realized, since it is configured within the standard movement, the display is small with respect to the size of the movement and is difficult to see. Incidentally, 40 is a lot and 41 is a coil spring.

Therefore, the present invention has been made in order to eliminate the above-mentioned conventional drawbacks.It is small and thin, has no contact defects such as chattering, and has a calendar function. Moreover, the purpose of the present invention is to provide an inexpensive timepiece display type timepiece movement.

[Means for solving problems]

From the above point of view, the present invention is a timepiece having a calendar display function and an alarm function, which includes a non-conductive calendar plate on the dial side of the main plate and a winding stem spacer made of an insulating material on which the timepiece component is mounted. It consists of a receiver that supports the wheel train, a calendar display function part, an electronic circuit for driving the alarm function, and a dial.
The pointer wheel train is axially supported by sandwiching the winding stem spacer by the main plate and the receiver, and the winding stem spacer has a smaller diameter portion than the main plate, and the calendar plate is provided on the side opposite to the dial plate around the main plate. A cylindrical shape is formed by projecting in a cylindrical shape within the height of the receiving part, and an opening is formed in at least a part of the cylindrical head, and a concave portion for accommodating the calendar display function component is formed on the dial plate side of the calendar plate. The alarm function electronic circuit is placed and held in the recessed part of the head, the calendar display function part is stored in the recessed part on the dial side, and it is coaxial with the pointer shaft of the pointer wheel train and for the alarm function on the dial side of the main plate. A guide car is placed to notify the user by synchronizing with the alarm function electronic circuit, and the calendar plate is clamped by the hook part so as to hold the main plate in the small diameter part of the winding stem spacer. It is a symptom.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a sectional view of a timepiece movement showing an embodiment of the present invention.

Reference numeral 1 is a base plate as a watch substrate made of a metal material. 2 is a train wheel bridge. 3 is an outer peripheral portion of the main plate of the main plate 1.
It is a winding stem spacer made of a molded product of an insulating material formed inside 1a. The winding stem spacer 3 is the main plate 1
It is held by the train wheel bridge 2 and is not shown,
A stepping motor which is a time display function component, a control circuit, a train wheel, a battery which is a power source, etc. are mounted and fixed by a train wheel set screw 4 to form a basic movement 5 which performs a time display function.

The second hand wheel 6, which is a component of the basic movement 5, has one end penetrating the pipe 7a of the minute hand wheel 7 and a second hand 8 attached to the tip thereof. The rotation of the second hand wheel 6 is transmitted to a minute hand wheel 7 via an intermediate wheel (not shown), and a minute hand 9 is attached to the tip of a pipe 7a at one end thereof. Ten
Is a clock wheel made of a metal material and axially supported by the pipe 7a of the minute hand wheel 7, and an hour hand 12 is attached to the tip of the pipe 10a at one end thereof. Further, at the base of the pipe 10a of the hour hand wheel 10, a date driving wheel drive gear 11 for transmitting rotation to the date driving wheel 14 is press-fitted and fixed, and further, a contact spring 13 is press-fitted and fixed. Rotate together. A part of the contact spring 13 has a bent arm shape to form a spring portion. A reference wheel 15 made of an insulating material is arranged at a position in sliding contact with the spring tip 13a of the contact point spring 13 and coaxially with the hour hand wheel 10.
A reference contact plate 16 is press-fitted and fixed on the surface of the contact spring 13 with which the spring tip 13a is in sliding contact, and a reference needle 17 is attached to the tip of the pipe 15a at the other end of the reference wheel 15. Further, the reference contact plate 16 is made of a conductive material and has a contact spring.
A circular ring-shaped insulating film 16a, which is partially cut away, is printed at a position where the spring tip 13a of 13 comes into contact with the contact point, which is integrated with the hour hand wheel 10 as described above. A phase detection switch is configured with the spring 13. Reference numeral 20 is a date plate for displaying the date, which is one of the calendar display function parts.
In the recess formed in, the cross-sectional direction is positioned by the dial plate described later, and the planar direction is positioned by the recess. The date plate 20 is intermittently rotated by the claw portion 14b of the date indicator driving wheel 14 which is rotationally transmitted by the date indicator driving gear 11 which is press-fitted and fixed to the hour wheel 10, and the date is switched once a day. It is configured like this. In addition, reference numeral 21 is a date plate presser, which has a central hole.
The reference wheel 15 is axially supported by 21a, and the date plate 20 is held by the outer peripheral portion 21b with a gap in the cross-sectional direction.

Further, the date dial pusher 21 is fixed to the main plate 1 of the basic movement 5 together with the calendar plate 26 by the date dial pusher set female screw 19.

Reference numeral 22 is a day star wheel, which is pivotally supported by the pipe portion 15a of the reference wheel 15 and is held by a ring 24 with a gap. A day board 23 is fixed to the day star wheel 22 by caulking and rotates integrally. In addition, the date wheel sheave that intermittently rotates the date plate 20
In the shaft 14, one end of the shaft portion 14a is pivotally supported by the main plate 1 and the other end is pivotally supported by the date dial pusher 21. Then, at the tip on the side pivotally supported by the date dial pusher 21, the deformed shaft portion 14 having a cut portion is formed.
c is provided and is detachably coupled with the odd-shaped hole portion 18a of the day feeding pawl 18. The sun-driving sheave 14 and the day feeding pawl 18 rotate integrally, and the day feeding pawl 18 meshes with the day star wheel 22 integrated with the day board 23, and rotates the day board 23 intermittently.

The calendar plate 26 is made of a molded product made of an insulating material, is in contact with the face of the main plate 1 on the dial side, and is fixed in plane by a positioning pin 31 which is press-fitted and fixed to the main plate 1. Also, on the main plate side of the calendar plate 26, the hook portion
26a is provided so as to embrace the outer peripheral portion 1a of the main plate, and the outer peripheral portion 1a of the main plate is held and fixed at the same time as being easily attached to the main plate 1. And the above-mentioned date plate push-stop female screw
At the same time as being joined to the basic movement 5 together with the date stamper 21 by 19, the basic movement 5 is held by the hook portion 26a of the calendar plate 26 to further strengthen the connection. Further, the calendar plate 26 is in contact with the dial plate 25 and has a dial plate receiving portion 26b for maintaining an appropriate clearance with the date plate 20.
A dial foot hole 26c for positioning and fixing the dial foot 25a is formed. Further, an alarm circuit 30 and an electronic component 30a for driving an alarm function are formed by forming a cylindrical protruding portion from the calendar plate 26 on the outside of the basic movement on the basic movement side (the side opposite to the dial 25) with respect to the main plate 1. An opening 26d is provided on the contact surface 26e or the contact surface 26e, which is a cylindrical head, for placement, and by the tube 27 and the alarm circuit stop screw 29 fixed by press fitting to the calendar plate 26, It is connected through the battery holder 28 and constitutes the entire movement.

FIG. 2 is a top view showing a reference vehicle which is a part of the phase detection switch.

A circular contact ring-shaped insulating film 16a is provided on the reference contact plate 16 which is press-fitted and fixed to the hour hand wheel facing surface of the reference wheel 15, and a cutout portion 16b is provided partially to face the reference wheel 15. As shown in FIG. 3, which will be described later, the spring tip 13a of the contact spring 13 press-fitted and fixed to the hour wheel 10 comes into contact with the circular ring-shaped insulating film 16a to turn off and the notch 16b to turn on. It constitutes a phase detection switch.

FIG. 3 is a bottom view showing a date feeding state which is a part of the calendar display function.

The rotation of the date indicator driving wheel 11 that is integrated with the hour hand wheel 10 is transmitted to the date indicator driving wheel 14, and the claw portion 14b causes the date indicator 2 to rotate.
0 is rotated intermittently. Further, the calendar plate 26 and the date plate pusher 21 are a plurality of positioning pins which are press-fitted and fixed to the main plate 1.
It is positioned by 31 and is fixed in contact with the main plate 1 by means of a date plate pressing female screw 19. 32 is a Sunday lever.

FIG. 4 is a bottom view showing a day board feeding state which is a part of the calendar display function. A shaft, which is partially cut flat, is formed at the tip portion 14c of the shaft portion 14a of the date indicator driving wheel 14, and is engaged with the irregular hole 18a of the day feeding pawl 18. This allows the day feed claw 1
8 rotates integrally with the date indicator driving wheel 14 and intermittently rotates the day star wheel 22 integrated with the day board 23. 33 is a day jump control lever.

FIG. 5 is a top view showing the combined state of the calender plates.

The main plate outer peripheral portion 1a protruding from the outer periphery of the base movement 5 is connected by a plurality of hook portions 26a provided on the base movement side of the calendar plate 26 so as to hold the outer peripheral portion of the main plate 1. Further, the calendar plate 26 is provided with an alarm circuit 30 that drives the alarm function parts.
Is mounted and fixed by an alarm circuit stop female screw 29 via a battery pusher 28 that holds the battery 34. Although not shown, an alarm function part is sandwiched between the calendar plate 26 and the alarm circuit 30 to electrically connect with the basic movement 5.

The features of the present invention having such a configuration will be described in more detail below.

Since the calendar plate 26 is positioned and fixed by the positioning pin 31 that is press-fitted and fixed to the main plate 1,
The plane position accuracy with the basic movement 5 is high. The calendar plate 26 contacts the dial plate side surface of the main plate 1,
Since the base plate outer peripheral portion 1a is held by the hook portion 26a of the calendar plate 26, the cross sectional positional accuracy with the basic movement 5 is high. By mounting the alarm function parts by the calendar plate 26, the mutual positional accuracy of the alarm function parts and the calendar function parts, and the alarm function parts and the basic movement parts is kept high, so that the electrical function between the function parts is high. By reducing the space for mechanical coupling such as mechanical coupling and external operation, the movement can be made smaller and thinner, and the number of parts can be reduced.
Further, since the bonding strength between the functional parts can be increased, the quality performance can be improved.

[Effect of device]

As is clear from the above description, according to the present invention, the calendar plate is arranged on the outer peripheral portion of the main plate that holds the basic movement for displaying the normal time, and the cylindrical protrusion is provided on the side opposite to the dial plate of the calendar plate. It is possible to easily connect with the circuit system on the basic movement side by placing the alarm function parts such as the phase detection switch and the alarm circuit that drives the alarm function on this protruding part, and the movement is thin. It is possible to reduce the size and size, and to improve the quality such as alignment accuracy, prevention of chattering, and firm holding of the basic movement and the calendar plate. Also, the basic movement part,
By using the same structure as the plane movement that only displays the time of minutes and seconds, it is possible to use conventional watch movement parts, and all jigs and tools can be used in the assembly process and part processing process. It is possible to reduce jig and tool costs that require large equipment costs.
It is extremely efficient in processing, and the cost of the watch can be reduced even if an alarm function is added. In addition, it is possible to add a calendar display function such as date and day of the week display to a movement with additional functions such as a time display function and an alarm notification function, which can broaden the range of product configurations. Has the effect of.

[Brief description of drawings]

FIG. 1 is a sectional view of a timepiece movement showing an embodiment of the present invention, FIG. 2 is a plan view showing a reference vehicle which is a part of a phase detection switch, and FIG. 3 is a day which is a part of a calendar display function. FIG. 4 is a bottom view showing a plate feeding state, FIG. 4 is a bottom view showing a day plate feeding state which is a part of a calendar display function, FIG. 5 is a plan view showing a state in which calendar plates are connected, and FIG. 6 is a conventional timepiece. 3 is a cross-sectional view showing the configuration of FIG. 1 ... ground plate, 1a ... outer peripheral part, 5 ... basic movement,
31 …… Positioning pin, 10 …… Hour wheel, 14 …… Day wheel,
15 …… Reference car, 19 …… Date pusher, female screw, 21 …… Date pusher, 26 …… Calendar plate, 26a …… Hook part, 27
...... Tube, 29 …… Alarm circuit stop screw, 30 …… Alarm circuit.

Claims (1)

(57) [Scope of utility model registration request] 1. A pointer display type timepiece capable of displaying a normal time display function including a calendar display function and an alarm function for notifying when a certain time comes, and a main plate as a watch substrate and a dial plate side of the main plate. A non-conductive plate-like member placed on the calendar plate, a winding stem spacer made of a molded product of an insulating material for mounting the timepiece component for displaying the normal time, and a support for pivotally supporting the indicator wheel train. A calendar display function component, an electronic circuit for driving the alarm function, and a dial as a display member. The main wheel and the support pinch the winding stem spacer so that the pointer wheel train is a shaft. The winding stem spacer is supported and has a diameter smaller than that of the main plate, and the calender plate has a cylindrical shape at the height of the receiving plate on the side opposite to the dial around the main plate. An opening is formed in at least a part of the cylindrical head, and a concave portion for accommodating the calendar display functional component is formed on the dial plate side of the calendar plate, and the concave portion of the cylindrical head is provided with The electronic circuit for alarm function is placed and held, the calendar display function component is stored in the concave portion on the dial side, and the alarm function is coaxial with the pointer shaft of the pointer wheel train and on the dial side of the main plate. The indicator wheel is arranged to notify in synchronization with the alarm function electronic circuit, and the calendar plate is sandwiched by the hook portion so as to hold the main plate in the small diameter portion of the winding stem spacer. A clock movement characterized by.