JPH0545020Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a watch movement, and more specifically, to a pointer display type watch movement that can display normal time and functions other than normal time. The present invention relates to the connection structure of batteries.

[Conventional technology]

Traditionally, there have been watches with functions other than displaying the normal time, such as watches with alarm alarms that alert you when the set time has arrived, watches with chronographs that indicate the elapsed time from the time the time was set,
Clocks with timers that show how much time is left after the set time, 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 new movements made specifically for this purpose.

Newly designed watch movements with functions other than normal time display have more functions than standard movements. Therefore, the number of parts is large, the assembly process is long, and many new 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 number of individual watches produced is small, so specially prepared jigs and tools are depreciated. This led to higher costs and the price of watch movements.

In order to solve this problem, in the movement of a watch with an alarm alarm, which is a typical example of a watch with functions other than normal time display, the outer periphery of the standard movement, which is generally mass-produced. It is known that a frame is provided with an alarm function. Movements based on this idea include, for example, Japanese Patent Application Laid-open No. 152980/1983,
It is also disclosed in Japanese Patent Application Laid-open No. 154185/1985.

In the case of this alarm notification watch, the standard movement and the alarm notification function section mounted on the frame must be structurally connected using a connecting member such as a screw. Functional units also require power supplies to drive their respective circuits. However, it is not a good idea to place batteries, which are separate power sources, in both functional parts, as this is an obstacle to downsizing the movement. Therefore, a battery, which is the power source for the standard movement, is commonly used, and separate lead members are provided for both functional parts to provide a common power source.

[Problem that the invention attempts to solve]

However, in this configuration, it is necessary to provide a relief gap, a positioning part, and a connecting member part for the product tolerance of both parts at the part where the standard movement and frame are joined, which increases the number of parts and increases the accuracy of the positioning. Therefore, the terminal area of the contact point for electrical transmission between the two members must be increased, which is not a good idea for downsizing the movement. or,
In the structures shown in JP-A-60-152980 and JP-A-60-154185, there is no perpendicular accuracy or cross-sectional accuracy between the two functions, so the lead members for functions other than the normal time cannot meet the above-mentioned accuracy. In order to absorb the variation in the contact pressure, it was necessary to increase the contact pressure. moreover,
Conventionally, sufficient contact pressure has been applied to the negative electrode lead of the battery to prevent contact failure due to battery leakage, etc., but by using separate negative electrode lead members for both functions from the negative electrode side of the battery, Furthermore, larger contact pressure is required, and a strong structure is required to maintain the positional stability of the battery, which has been an obstacle in making the movement thinner.

Therefore, the present invention was devised to eliminate the above-mentioned drawbacks of the conventional technology, and aims to provide a small, thin, and low-cost watch movement with a pointer display that has functions other than normal time. It is.

[Means for solving problems]

From the above point of view, the present invention is a hand display type watch that can display functions other than the normal time in addition to the normal time, and which uses a battery as a power source for the time display and an electrode plate in contact with one pole of the battery. It is composed of a battery receiving spring and a battery lead plate that comes into contact with the battery receiving spring, and the battery lead plate is held by an insulating member formed on the outside of the outer periphery of the base plate, and one end of the battery receiving spring is connected to the battery. by connecting one end of the battery lead plate to one of the circuit boards, one end of the battery lead plate to the battery receiving spring, and the other end to the other circuit board of the battery lead plate. , a power supply circuit is constructed of a circuit board for displaying normal time and a circuit board for displaying functions other than normal time.

Furthermore, the battery lead plate is characterized in that the one end thereof is connected to a substantially rigid portion of the battery receiving spring.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

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

1 is a base plate which is a watch base made of a metal material, and 2 is a train wheel bridge. 3 is a projecting portion 3 projecting outward from the outer periphery 1a of the watch substrate 1;
It is a plate-shaped member made of an insulating material and is commonly called a winding stem spacer, and holds a driving part for a watch. A battery 10, a back presser 12, a battery receiving spring 9, and a timepiece circuit board 4, which are some of the members constituting a basic movement having a function of displaying time, are all placed on the main plate 1. Battery 10 is the power source for the basic movement
Electrical transmission from the negative electrode side is carried out by a battery receiving spring 9 that contacts the negative electrode can 10a of the battery 10. The battery receiving spring 9 is attached to the boss 3d of the winding stem spacer 3.
The contact portion 6 formed on the circuit board 4 for a timepiece is held in contact with the contact portion 6 and is supplied to the IC 5 for a timepiece. The anode side is supplied to the timepiece circuit board 4 by a back presser 12 that presses the anode can 10b of the battery 10 in a planar direction (not shown). Further, the base plate 1, which is a metal member, is grounded to the anode side via a back presser 12 (not shown).

On the other hand, an overhanging portion 3 provided at a position overhanging the outer periphery 1a of the main plate 1 of the winding stem spacer 3 in a cylindrical shape
An alarm functional member is placed on a. 1
Reference numeral 1 denotes a battery lead plate that supplies a negative electrode of power to the alarm function member. The battery lead plate 11 is positioned by a boss portion 3b provided on an overhanging portion 3a of the winding stem spacer 3, and is positioned by a guide holder 13 made of a plastic material that is an insulating member.
It is held between. Also, the tip of the boss portion 3c that positions and fixes the winding stem spacer 3 and the main plate 1 comes into contact with the battery lead plate 11, and the guide presser 13
The battery lead plate 11 is held between the two.

A contact portion 11a is provided on the battery lead plate 11 toward the basic movement side, and is in contact with the battery receiving spring 9, which is a component of the standard movement.
This abutting portion is in contact with the rising portion of the battery receiving spring 9, which becomes a substantially rigid body portion when the battery receiving spring 9 incorporates the battery 10. Further, the other contact portion 11b of the battery lead plate 11 is in contact with the contact portion 8 provided on the alarm circuit board 7.

Furthermore, a guide presser 1 that engages with a plurality of bosses 3b provided on the projecting portion 3a of the winding stem specifier 3 is provided.
Guideline presser foot 1 positioned by guide hole 13c of No. 3
A plurality of hooks 13a are provided on the outer periphery of the winder 3, and the alarm circuit board 7, the protruding portion 3a of the winding stem spacer 3, and the battery lead plate 11 are held between the hook portion 13b at the tip and the flat plate portion 13d. ing.

15 is a tube made of a metal material that is press-fitted into the hole 13e of the guide foot 13, and is connected to the alarm circuit board 7 and the protruding portion 3a of the winding stem spacer 3.
The battery holder 14 is fixed with a set screw 16.

Electrical transmission of the alarm function member is carried out on the negative electrode side from the negative electrode can 10a of the battery 10, which is the power source of the basic movement, from the battery lead plate 11 through the vicinity of the rising part, which is a substantially rigid part, of the battery receiving spring 9. The signal is transmitted to a contact portion 8 provided on a circuit board 7. Also, on the anode side, a set screw 16,
Tube 15 press-fitted into guide foot 13
The signal is transmitted to the contact portion 17 on the alarm circuit board 7 that comes into contact with the tube 15. Although not shown, an alarm IC is mounted on the alarm circuit board 7 and receives power from the negative electrode side contact section 8 and the anode side contact section 17, respectively.

The battery 10 continues to suffer from electrolyte leakage as a structural problem. Batteries 1 that temporarily use large currents, especially for alarm functions, etc.
0, a type that contains a KOH electrolyte is often used, and the risk of leakage is higher.
Therefore, the battery receiving spring 9 which is the negative electrode side of the battery 10
The contact portion 9a must be in contact with the negative electrode can 10a of the battery 10 with sufficient contact pressure. When the battery lead plate 11 of the present invention is brought into direct contact with the negative electrode can 10a of the battery 10 to establish continuity, the contact pressure must be set as high as that of the battery receiving spring 9, and the thickness of the spring must be increased. In addition, the holding structure must be strengthened to prevent chattering.
The movement also becomes thicker.

The contact pressure that brings the battery lead plate 11 into contact with the battery spring 9, which is a component of the basic movement, is set at a point where there is little need to consider contact failure due to liquid leakage, etc., and where there is little influence on the spring force of the receiving spring, etc. There are some advantages to doing so.

FIG. 2 is a plan view showing a state in which the guide presser according to the embodiment of the present invention is removed. The battery lead plate 11 is positioned by a hole 11c that engages with a boss 3b provided on an overhang 3a that overhangs the outer periphery 1a of the main plate 1 of the winding stem spacer 3. Also, the boss portion 3 of the winding stem spacer 3 engages with the hole 1b of the main plate 1 and positions the main plate 1 and the winding stem spacer 3.
A part of c contacts the lower surface of the battery lead plate 11 and fixes the position in the cross-sectional direction. Furthermore, the battery lead plate is provided with two contact portions 11a and 11b, one of which contacts the battery receiving spring 9, which is the negative power supply system of the standard movement, and the other is provided on the alarm circuit board 7. The contact portion 8 is brought into contact with the contact portion 8 and electrical transmission is performed.

In this way, since the alarm function member is fixed in position by the basic movement member, it is possible to improve the mutual positional accuracy and reduce the space for the contact portion, etc. In addition, by positioning the battery lead plate, which conducts electrical transmission to functional components other than the time display, with a winding stem spacer, the flatness accuracy is improved.
Since the contact pressure can be set low, the movement can be made smaller. Furthermore,
The accuracy of the perpendicularity of the cross-sectional direction is also improved, and the contact pressure can be set to the minimum, making it possible to make the movement thinner.

[Effect of idea]

As is clear from the above explanation, according to the present invention, the contact pressure of the battery receiving spring can provide a contact with the necessary strength to prevent chattering and leakage, while the battery lead plate is Since there is no need to worry about this, a relatively weak contact pressure can be used, and since the contact part of the battery lead plate can be selected relatively freely, it is possible to design the pressure applied to the battery to a minimum even though two receiving springs are used. Since it can be made smaller and thinner, and existing parts such as battery receiving springs can be used, costs can be reduced in terms of the number of parts, and furthermore, the product has a long product life and has a multi-functional pointer display type watch movement. It is possible to achieve great effects.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of a timepiece movement showing an embodiment of the present invention, and FIG. 2 is a plan view showing the timepiece movement shown in FIG. 1 with the reference holder removed. 1... Main plate, 3... Winding stem spacer, 3a...
Overhanging portion, 7... Alarm circuit board, 9...
Battery receiving spring, 10...Battery, 11...Battery lead plate, 13...Guide presser, 14...Battery presser.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) It is equipped with a circuit board for displaying the normal time and a circuit board for displaying a function other than the normal time. A pointer display type watch that can display the time is composed of a battery that is a power source for displaying the time, a battery receiving spring that is a plate that contacts one pole of the battery, and a battery lead plate that is in contact with the battery receiving spring. , the battery lead plate is held by an insulating member formed on the outside of the outer periphery of the base plate, which is a watch substrate, and one end of the battery receiving spring is connected to one pole of the battery, and the other end is connected to one pole of the battery. By connecting the battery lead plate to the circuit board, and connecting one end of the battery lead plate to the battery receiving spring and the other end to the other circuit board, the circuit board for normal time display and functions other than normal time can be connected. A battery connection structure for a watch, characterized in that a power supply circuit is configured with a display circuit board. (2) The scope of the utility model registration claim characterized in that the other end of the battery lead plate is connected to a circuit board for displaying functions other than the normal time, and one end is connected to the substantially rigid part of the battery receiving spring. Battery connection structure of the watch described in item 1.