JPS62267687A - Timepiece movement - Google Patents

Abstract

PURPOSE:To make the titled timepiece small and thin in size, and to eliminate a contact failure such as chattering, etc., by providing a circuit for driving an alarm function, and function parts, on an overhang part in which a plate- shaped member is overhung to the outside from the outer periphery of a substrate for a timepiece. CONSTITUTION:The hook part 18c of an alarm holder 18 placed by pinching a phase detecting switch for detecting a desired time is hooked to the overhand part 3a overhung to the outside from the outer periphery of the substrate 1 for the timepiece provided on a plate-shaped member 3 for holding the driving parts for the timepiece, and an electronic circuit for driving an alarm mechanism, and mechanical parts for executing a display and a correction of the alarm function are also attached to the plate-shaped member 3. In such way, by only changing the shape of parts of a part of the standard movement, the parts of the standard movement can be shared.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a movement for a pointer display type timepiece, and particularly to a movement for a pointer display type timepiece having functions other than normal time display.

[Conventional technology]

Traditionally, there have been watches with functions other than displaying the normal time, such as watches with an alarm alarm that alerts you when the set time has arrived, watches with a chronograph that indicates the elapsed time from the time it was set, and watches that have a chronograph that indicates the time that has elapsed since the set time. Clocks with timers that show the remaining battery life, and watches with dual time that show the current time in various parts of the world are well-known.

Traditional watches with functions other than normal time display were often fitted with movements made specifically for this purpose.

That is, a watch movement that has functions other than normal time display has more functions than the standard movement 1. Therefore, the number of parts is large, the assembly process is long, and
Many specially prepared jigs and tools are required. Furthermore, the demand for watch movements with functions other than normal time display is lower than the demand for standard movements, so the mass production effect is small, and the depreciation costs of specially prepared jigs and tools are low. This increased the price of watch movements.

Among these improvements, among watches with functions other than normal time display, in the movement of a watch with an alarm alarm, which is a typical example, a frame that retains the alarm function is installed around the outer periphery of the standard movement. It has been known. Movements based on such ideas are, for example, published in Japanese Patent Application Laid-open No. 60-152980 and Japanese Patent Application Laid-open No. 60-1
It is shown in Publication No. 54185.

[Problem that the invention seeks to solve]

In the case of such a watch with an alarm notification, it is difficult to achieve alignment accuracy in the radial and length directions between the standard movement and the frame. Due to the complicated structure of the transmission of rotation to the member used as a guide wheel, the only way to notify the user of the alarm notification time is by displaying a rotating disc. Therefore, it is necessary to increase the strength of the rotating disc in the thickness direction. However, the contact pressure could not be increased, and contact failures such as chattering due to vibration etc. occurred.In addition, each part of the rotating disk, such as the gear part, bearing part, contact part, and insulation part, has different characteristics requirements. However, it is difficult to satisfy all of the required characteristics due to the material and mechanism, resulting in unsatisfactory product life and cost.

In addition, the part where the standard movement and frame are joined must be provided with a relief gap for the product tolerance of both parts, a positioning part, and a connecting member part, and furthermore, the accuracy of the positioning of the standard movement and frame must be In order to prevent electrical transmission between the two parts, it is necessary to increase the terminal area of the 5 contacts, and in addition, because the accuracy of the right angle dust between the standard movement and frame cannot be achieved, the time display hand and the movement must be Because of the above, it was difficult to make the watch smaller and thinner.

Furthermore, the winding stem that corrects the indicated position of the time display hand is subject to the weight of the frame in addition to the weight of the standard movement during assembly and during transportation and use after becoming a product, and is particularly susceptible to impact, vibration, etc. When a large moment is applied, bending may occur, which could result in malfunction.

Therefore, the present invention has been made to eliminate the above-mentioned drawbacks of the conventional technology. It is intended to provide movement.

[Means for solving problems]

In view of the above, the present invention includes a phase detection switch for detecting a desired time, which is provided on a plate-like member that holds a drive component for a timepiece and extends outward from the outer periphery of a timepiece substrate. The electronic circuit that drives the alarm function and the mechanical parts that display and modify the alarm function are also placed or held on the plate-like member by hooking the hook part of the guide presser placed in the plate-like member. It is.

〔Example〕

Embodiments of the present invention will be described in detail below with reference to the drawings.

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

Reference numeral 1 denotes a watch substrate made of a metal material, commonly called the main plate. 2 is a gear train bridge.

Reference numeral 3 designates a plate-shaped member, which is a molded product made of resin, which is an insulating material, provided with a projecting portion 3a projecting outward from the outer periphery 1a of the watch substrate 1, and is commonly called a spacer. A rotor 4 includes a foundation stone, and is rotated by a coil 5. The rotation of the rotor 4 is transmitted to the second hand wheel 7 via the fifth wheel 6, one end of which passes through a pipe 8a of the minute hand 8, and a second hand 9 is attached to the tip of the pipe 8a.

The rotation of the second hand wheel 7 is in the middle! 10 to the minute hand wheel 8, and a minute hand 1) is attached to the tip of a pipe 8a at one end of the minute hand wheel 8. Reference numeral 12 denotes an hour hand gear made of a metal material and pivotally supported by a pipe 8a of the minute hand wheel 8, and an hour hand 13 is attached to the tip of the pipe 12a at one end thereof. or,
A contact spring 14 is attached to the base of the pipe 12a of the hour hand gear 12.
is press-fitted and rotated together with the hour hand gear 12. A part of the contact spring 14 has a bent arm shape and forms a spring portion. A guide i15 made of an insulating material is arranged at a position in sliding contact with the spring tip 14a of the contact spring 14, and a guide contact plate 16 is press-fitted and fixed on the surface in sliding contact with the spring tip 14a of the contact spring 14. Furthermore, a guide needle 17 is attached to the tip of a pipe 15a at the other end of the guide wheel 15. The reference contact plate 16 is made of a conductive material, and has a partially cut-out circular ring-shaped insulating film at the position where the spring tip 14a of the contact spring 14 comes into contact, as shown in FIG. 6, which will be described later. printed.

Reference numeral 18 denotes a guide presser, which has a hole 18a in its center and a plurality of hooks 18C on its outer periphery. The outer periphery of the guide wheel 15 is pivotally supported in the center hole 18a of the guide press 18. In addition, between the flat plate part 18b of the guide press 18 and the hook part 18d of the hook 18C, the overhanging part 3a of the plate-shaped member B is connected to the alarm circuit board 19, which has an electronic circuit for driving an alarm function. , being held in place. 20
is a dial plate, and is provided with a plurality of legs 20a that are press-fitted and fixed to the plate-like member 6.

FIG. 2 is a top view of the embodiment shown in FIG.

Reference numeral 21 denotes a battery, which is placed in a space between the train wheel bridge 2 and the alarm circuit board 19 in plan view, and is held by a battery press 22 fixed to the alarm circuit board 19. . The battery press 22 is made of a conductive material and also serves as a contact terminal for establishing electrical continuity between the battery M and the alarm circuit board 19. 5 is the coil described above.

FIG. 3 is a sectional view showing a section of the winding stem of the embodiment shown in FIG. 1.

23 is the day wheel, and the gear 23a at one end is the minute hand! 8 and kana 23 b &' at the other end! It penetrates through the watch substrate 1 and meshes with the hour hand gear 12. 2
4 is a winding stem supported by the plate member 6, with 2 on the tip side.
rectangular cross sections 24a and 24b are provided. Furthermore, 2
A round cross-section portion 24C124d having a circular diameter inscribed in each rectangle is provided at the front portion of each of the rectangular cross-section portions 24a and 24b. Furthermore, there is a hook part 2 that comes into contact with the mandarin duck 41 on the front side.
4e is provided. Reference numeral 25 denotes a Tsuzumi wheel, and the center hole is a rectangular cross-section hole that fits tightly into the rectangular cross-section portion 24b of the winding stem 24. Thrush! A crown gear 25a is provided on the surface on the 250 pointer shaft side, and an engagement groove 25b for the cannula 40 is provided on the other surface. Reference numeral 26 denotes a small iron train, which is engaged with the Hinoura train 26, and can also be engaged with the Tsuzumi leather 25, as shown on the right side of FIG. Reference numeral 27 denotes a guide correction gear arranged in the groove 6b provided in the plate member 3, and the center hole is a rectangular cross-section hole that fits into the rectangular cross-section portion 24a of the winding stem 24. 28 is a guideline correction force, which is pivotally supported by a boss 3c provided on the stem-shaped member O, and a guideline correction force N,
The rotation of 27 is transmitted to the guideline 1) 5.

First, the gear train for time display will be organized and explained using FIGS. 1 and 3.

The rotation of the rotor 4, which is energized and rotated by a coil 5 excited by a clock circuit (not shown), is transmitted to the fifth wheel 6, the second hand wheel 7, the intermediate arm 10, the minute hand 8, the hour hand gear 23, and the hour hand gear 12. second hand wheel 7°, minute hand wheel 8, hour hand gear 12
The normal time is displayed by a second hand 9, a minute hand 1), and an hour hand 16 attached to each of the .

Next, the needle correction mechanism will be explained.

The winding stem 24 is the deepest (the pushed state is 0 stage, and the winding stem 2
There is a guide correction transmission wheel 27 at the round cross section 24G position of 4.
The rotation of the winding stem 24 is not transmitted to the reference correction transmission wheel 27. At this time, the Tsuzumi wheel 25 is in a position away from the small iron]ii, 26 due to the restriction of the cannula 40 that is engaged with the engagement groove 25b, and the Tsuzumi! There is no mesh between the crown tooth 125a of No. 25 and the gear of the small iron wheel 26. Therefore, winding stem 2
The rectangular cross section 24b of No. 4 engages with the threading wheel 25, and the rotation of the winding stem 24 becomes smooth! It is transmitted to 25, but not to the small iron car 26.

When you pull the winding stem 24 one step, the rectangular cross section 24a of the winding stem 24 comes to the position j27, and the first winding stem 24 and the guide correction work! 27 is engaged. Therefore, the rotation of the winding stem 24 is corrected by passing through the reference correction transmission wheel 27! 28, Reference car 15
The reference needle 17 and the reference contact plate 16, which are integrated with the reference wheel 15, rotate. At this time, the Tsuzumi wheel 25 is regulated by the cannula 40 to the same position as the 0th stage (separate from the small ironwork 26, and the rotation of the winding stem 24 is transmitted to the Tsuzumi wataru 25, but not to the small ironwork 26. Kotetsu!26 does not rotate.

When the winding stem 24 is pulled out one more step (the state shown in Fig. 3), the winding stem 24
The guideline correction transmission 27 moves to the position of the round cross section 24d, and the mandarin duck 41 and Tsuzumi which come into contact with the hook 24e of the winding stem 24! 25 in the engagement groove 25b, the thrush! 25 is regulated at a position where it meshes with the small ironwork 26.

Therefore, the 240 rotations of the winding stem is not transmitted to the standard correction transmission wheel 27, and on the other hand, Tsuzumi Jlj25, Kotetsu! 26, Minute wheel 8 and hour hand tooth through Hino Agricultural Industry 26! 12, the hour and minute hands 16.1) can be corrected.

FIG. 4 is a block diagram of the electronic circuitry that drives the alarm function. Phase detection switch 30 and alarm switch 6
When both switches 1 and 1 are in the (JN state), electronic circuit 4
2, the alarm 43 is energized and a notification sound is emitted.

FIG. 5 is a sectional view of the phase detection switch section, and FIG. 6 is a top view of the phase detection switch section.

Reference numeral 62 denotes a guide lead plate made of a metal material, which is held between the projecting portion 3a of the plate-shaped member B and the guide press 18. As a guide, there are three contact springs 3 inside the lead plate 32.
2a is provided, and the tip is a guide! Reference contact plate 160 fixed to 15; circular ring-shaped insulating film portion 16;
It is in contact with the conductive portion 16b on the outside of a. Further, a contact spring '52b is provided on the outside of the reference lead plate 62, and a contact terminal 46 provided on the alarm circuit board 19 is provided.
is joined to.

One side of the contact spring 14 is electrically connected to a side pressure spring (not shown) that fixes the battery 21 through the watch base plate 1 and the hour hand gear 12 .

On the other hand, the reference contact plate 16 is electrically connected to the electronic circuit mounted on the alarm circuit board 19 via the reference lead plate 62 . Therefore, as the hour hand tooth Jt12 rotates, when the spring tip 14a of the contact spring 14 is in contact with the circular ring-shaped insulating film 16a of the reference contact plate 16 (JFF state is reached, the phase detection switch is in the circular ring-shaped It is formed as a switch that is turned on when it is in contact with the notch 16C, which is the conductive part of the insulating film part 16a.

FIG. 7 is a top view of the alarm switch section.

Reference numeral 36 indicates a switch moderation spring fixed to the alarm circuit board 19, and a part thereof has a bent portion 33a with two arms.
has been established. Reference numeral 64 denotes a switch winding stem, which has an abacus bead portion at its tip, passes through between the two arms of the bent portion 33a of the switch moderation spring 33, and is connected to the abacus bead portion of the switch winding stem 34. are located before and after the bent portion 33a of the switch moderation spring 66, thereby creating two stages.

35 is an alarm switch made of a metal material, and an alarm circuit board 19 is attached to a bent portion 35a that is pushed by the switch winding stem 64 through an insulating plate 66 made of an insulating material.
A spring portion 35b is provided that contacts the terminal portion 19a provided at the terminal portion 19a.

One side of the alarm switch spring 35 is electrically connected to the battery 21, and the other terminal portion 19a on the alarm circuit board 19 is electrically connected to the electronic circuit. Therefore, when the switch winding stem 34 is pressed, the abacus bead portion of the switch winding stem 34 is held at the front stage (the solid line portion in FIG. 7) of the bent portion 33a of the switch moderation spring 63, and the spring portion of the alarm switch spring 65 is held at the front stage (the solid line portion in FIG. 7). 35
b is separated from the terminal portion 19a of the alarm circuit board 19, and the switch is turned off. Then, when the switch winding stem 24 is pulled, the abacus bead of the switch winding stem 64 is held at the rear stage of the bent portion 33a of the switch moderation spring 63 (double-dashed line in FIG. 7), and the alarm switch spring 35 is The spring portion 35b contacts the terminal portion 19a of the alarm circuit board 19, and the switch is turned on.

The operation of the device configured in this way will be explained below.

The user pulls the winding stem 24 one step, turns the winding stem 24 while looking at the guide needle 17, and sets the desired alarm notification time. With this setting, the reference contact plate 160 phase is determined.

Next, the user pulls the switch winding stem 64 to turn the alarm switch ON. At this time, the spring tip 14a of the contact spring 14 is connected to the circular ring-shaped insulating film 16a of the reference contact plate 16.
position, and the phase detection switch is in the OFF state.

When the watch is left alone in this manner, the contact spring 14 rotates together with the hour hand gear 12. At the alarm notification time, the spring tip 14a of the contact spring 14 moves to the notch 16C position of the circular ring-shaped insulating film 16a of the reference contact plate 16 and contacts the conductive part, and the phase detection switch turns on, causing the alarm to be activated. begins to sound.

When the alarm starts sounding, the user can stop the alarm at any time by pressing the switch stem 24 to turn the alarm switch to the OFF state.

Therefore, the user can reliably activate the alarm function with a very simple operation.

In addition, since the configuration of the present invention only changes the shape of some parts of the standard movement, it is possible to share the parts of the standard movement, and it is possible to share a large number of jigs and tools. , the depreciation costs of jigs and tools can be reduced, and clock movements can be made cheaper.

Furthermore, since the phase detection switch member can be placed or held on the watch base plate 1 and the plate-like member 3, which are parts of the standard movement, the contact surface between the guide press 18 and the plate-like member 3 can be Widen the width and increase the contact area, and press 18
It is possible to increase the strength of the contact spring 14 and the reference lead plate 32, prevent contact failures such as chattering due to vibration, etc., and increase the distance between the time display hand and the movement. What is more convenient is that there is no need to prepare special parts for mounting or holding the electronic circuit and mechanical parts for driving the alarm function, and the positional accuracy between the parts is high, so the terminals of the electrical contacts can be Since it only takes up a small area, watch movements can be made smaller and thinner.

In addition, since the hour hand gear 12 and the contact spring 14 are separate parts, the springiness of the contact spring 14 and the hour hand tooth] [12
Appropriate materials can be selected for the bearing properties of 1L1.
5 and the guideline contact plate 16 are made into separate parts, the guideline j
[15] Appropriate materials can be selected for the insulation properties, bearing properties, and sliding resistance of the contact plate as a guideline, and the insulation life and contact life can be extended, and expensive materials and processing methods can be avoided. It is possible to reduce costs by using existing parts.

Furthermore, since the length of the winding stem 24 guided by the plate-shaped member B is long, no load is applied to the narrow diameter portion of the winding stem 24, and bending and the like no longer occur.

In addition, since the alarm circuit board 19 and the plate member 6 are clamped by the hook part 18C of the guide press 18, it is easy to hold the guide j [15], and the number of set screws can be reduced, making it possible to create an inexpensive watch with good assembly. It can be made into a movement.

In the embodiment of the present invention, the electronic circuit and mechanical parts that drive the alarm function are mounted or held on one spacer member as the plate-like member 3, but it is not limited to the one spacer member. I don't mind. At this time, it is desirable that the gear train bridge 2 is an insulating member, but even if it is a metal member, it can be used for optical purposes as long as the necessary parts are insulated.

Further, in the embodiment of the present invention, the hook portion 18 of the guide press 18
Although the alarm circuit board 19 is designed to be in contact with the hook part 18d of c, the position of the alarm circuit board 19 may be between the plate member 3 and the flat plate part 18b of the guide press 18.

Further, in the embodiment of the present invention, the function other than the time is an alarm function, but it is not limited to the alarm function, but may be other functions such as a chronograph, a timer, a dual time, etc.

〔Effect of the invention〕

As is clear from the above description, the present invention has a configuration in which a circuit for driving an alarm function and functional components are mounted or held on an overhanging portion of a plate-like member that overhangs outside the outer periphery of a watch substrate. We provide a pointer display type watch movement that can be made small and thin, is inexpensive, has no contact defects such as chattering, and winding stem curling defects, has a long product life, has an easy-to-understand alarm notification time, and is easy to use. can do.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a timepiece movement showing one embodiment of the present invention, FIG. 2 is a top view of the embodiment shown in FIG. 1, and FIG.
4 is a block diagram of the electronic circuit that drives the alarm function. FIG. 5 is a sectional view of the phase detection switch section. FIG. 6 is a top view of the phase detection switch section, and FIG. 7 is a top view of the alarm switch section. 1)...Clock board, 2...Gear train bridge,
6...Plate member, 6a...Protruding portion, 12...Hour hand painter, 14...Contact spring, 15...Reference wheel , 16...Reference contact plate, 18...Reference stamping, 18C...
Hook part, 19...Alarm circuit board. 2nd Figure 16g1) - Yagurata Fold

Claims (5)

[Claims] (1) In a pointer display type watch capable of displaying time and functions other than time, a watch board, a watch driving part for displaying the time placed on the watch board, and a watch drive part for displaying the time placed on the watch board, It is composed of a plate-like member that holds a driving part, an electronic circuit for driving a function other than the time, and a mechanical part for displaying or correcting a function other than the time, and the plate-like member is connected to the watch board. 1. A timepiece movement, characterized in that the electronic circuit and the mechanical parts are placed or held on the overhanging portion, and the electronic circuit and the mechanical parts are placed or held on the overhanging portion. (2) The timepiece movement according to claim 1, wherein the function other than the time is an alarm function that notifies you by sound at a desired time. (3) The plate-like member is a non-conductive spacer held between the timepiece base plate and a gear train bridge disposed opposite to the timepiece base plate. The clock movement described in item 1 or 2. (4) Mechanical components that display or correct functions other than the time include a phase detection switch that detects a desired time, a reference holder that rotatably fixes the phase detection switch on the clock substrate, and the phase detection It consists of a correction knob that sets the switch to a desired time, an alarm switch that controls energization of the alarm, and the phase detection switch further includes:
A reference contact plate with a partial conduction part is integrally formed,
A reference wheel made of an insulating material that can be displaced in accordance with the setting of an alarm time, and a contact spring provided with a spring that is always in sliding contact with a reference contact plate integrated with the reference wheel are integrally formed,
The timepiece movement according to claim 2 or 3, characterized in that it is constituted by an hour hand gear made of a conductive material and rotating at a constant speed. (5) A circuit board provided with an electronic circuit for driving a function other than a timepiece with a hook part provided on the reference holder, which is arranged to sandwich the phase detection switch, on the side of the watch board; and the board. The timepiece movement according to claim 2 or 3, wherein the timepiece movement has a structure in which the projecting portion of the shaped member is clamped.