JP2510685Y2 - Manual power generation mechanism for electronic watches - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a manual power generation mechanism of an electronic timepiece with a built-in generator.

[Conventional technology]

In the conventional electronic timepiece with built-in generator, as in JP-A-53-22468, the rotor of the generator rotates only by the operating member,
It does not generate power, or as in Japanese Patent Laid-Open No. 52-80871, the rotor of the generator rotates only by the rotation of the rotating member to generate power, and does not have both functions.

[Problems to be solved by the invention]

Therefore, in JP-A-53-22468, the operating member and the rotor are always in mesh with each other, and the rotating member is temporarily attached to one of the transmission means, and the rotation of the rotating member allows the rotation of the rotor to be obtained. Even if it tries to do so, the operating member is driven at the same time as the rotor, and efficient energy transfer cannot be expected.

In addition, in Japanese Patent Laid-Open No. 52-80871, the above-mentioned Japanese Patent Laid-Open No. 53-22468 is added.
Similarly, even if the transmission means is added, a load is applied to the rotating member, and the result is the same. Furthermore, it is not only unreasonable in terms of size and cost to dispose both of the above-mentioned means separately in the watch body, but it becomes very complicated in terms of circuit and mechanism, and also in terms of after-sales service, It has a problem.

Therefore, the present invention solves these problems,
The purpose is to provide an electronic timepiece equipped with a generator that uses the energy obtained by a rotating member to generate electricity, and minimizes the load on the power generation operation by the rotating member, and has high efficiency for manual power generation. The mechanism is provided with a simple structure.

[Means for solving problems]

A manual power generation mechanism for an electronic timepiece according to the present invention includes a rotary member having a rotary weight that rotates by utilizing a person's movement or gravity, and a generator for converting mechanical energy obtained by operating the rotary member into electric energy. A transmission means A for transmitting the rotational movement of the rotating member to the generator; an operating member rotated by manual operation; and a clutch mechanism for transmitting the rotation of the operating member to the rotating member when the operating member is operated. Means B comprising
The speed increasing ratio in the rotation transmission path from the operating member to the generator is 50 times or more.

[Action]

According to the above configuration of the present invention, the rotating member and the generator are
It is always linked by the transmission means A. On the other hand, the manually operated operation unit, at least when manually operated,
The transmission means B is interlocked with the rotating member, and the transmission means A is interlocked with the generator. Therefore, when the manual operation is not normally performed, the operation unit and the rotating member are not interlocked with each other, and at the time of the manual operation, the transmission means B and the transmission means A properly accelerate the speed to drive the generator.

〔Example〕

FIG. 1 is an assembly plan view of an embodiment of the present invention, and FIG. 2 is an assembly sectional view of FIG.

The external operation member 7 has a corner portion that engages with the handwheel 9 and a corner portion that engages with the handwheel 8. The handwheel 8 has a first transmission wheel 12
It engages with the pinion 12a. The hand-wound switching gear 14 that meshes with the second transmission wheel 13 has a hand-wound switching axle 33 as its axis and four holes 14
have a. The manual winding switching wheel 15 has a toothed portion 15 with a manual winding switching shaft 33 as an axis.
It has a, 15b, 15c, and the tooth part 15a is four sawtooth teeth,
It is housed in the hole 14a of the manual winding switching gear 14, and is pressed against the main plate 34 side by the manual winding switching spring 20 having two spring portions. The manual winding switching wheel spring 20 has a main plate 34 at one spring tip.
4 teeth 1 of hand-wound switching wheel 15 with a bent portion 20a to the side
Engaged with 5b. The rotary weight transmission wheel 16 is subassembled to the rotary weight receiver 21 and has tooth portions 16a and 16b. Reference numeral 17 denotes a rotary weight wheel, which is fixed to a rotary weight 22 of a rotary member that rotates by the movement of a person and gravity, and is rotatable about a rotary weight shaft 21a. Reference numeral 18 is a power generation rotor transmission wheel, 19 is a power generation rotor having a permanent magnet, 24 is a power generation stator, 25 is a power generation coil block, and 35 is a rechargeable power source. 26 is a small iron car, 27 is a back wheel of the sun, 28 is a fifth wheel, 29 is a rotor, 30 is a stator, 31 is a coil block, 10 is a rod, 11 is a bar, 32 is a date wheel, and 36 is a well-known train wheel. A receiving wheel, 37 is a fourth wheel, 38 is a third wheel, and 39 is a set screw for determining the height of the rotary weight wheel 17.

This embodiment is not dedicated to manual winding power generation, but has an automatic winding power generation function, and for that reason, the rotary weight 22 is provided.

The tooth portion 8a of the hand-wound wheel 8 is located on the outer peripheral side of the tooth portion 32a of the date indicator and is inserted into the step between the tooth portion 32a and the date / character printing portion 32b in the cross-sectional direction.

The tip of the hand-wound switching wheel spring 20 holding the hand-wound switching wheel 15 is located near the line passing through the center of the hand-wound switching wheel 15,
Holds in good balance.

In the above, from the handwheel 8 to the rotary weight transmission wheel 16,
The transmission means B and the rotary spindle 17 to the rotor 19 for power generation represent the transmission means A.

Next, the operation will be described. When the external operation member 7 is rotated in the 0th-stage carrying state, the handwheel 8 engaged at the corner is interlocked and transmitted to the first transmission wheel 12, the second transmission wheel 13, and the manual winding switching gear 14. It Here, the manual winding switching gear 14 and the manual winding switching wheel 1
5. The operation of the rotary weight transmission wheel 16 will be described with reference to the explanatory view of FIG. As described above, the tooth portion 15a of the manual winding switching wheel 15
Is housed in a hole 14a provided in the hand-wound switching gear 14. When the manual winding switching gear 14 is driven in the direction of the arrow in this state, the manual winding switching gear 15 is pushed by the inclined surface 15a-1 of the tooth portion 15a and similarly rotates. The tooth portion 15b is the bent portion 2 at the tip of the hand-wound switchover spring.
When it hits 0a, the rotation of the hand-wound switching wheel 15 is interrupted,
The inclined surface of a-1 gradually pushes it upward to the position of 15 ', and the tooth portion 15c having a saw-like shape meshes with the tooth portion 16a having a saw-like shape of the rotary weight transmission wheel 16. At this time, the manual winding switching gear 14 is engaged with 15a-2 of a steeper slope than 15a-1 of the manual winding switching tooth portion 15a. Further, when the manual winding changeover wheel tooth 14 rotates in the direction of the arrow, the manual winding changeover wheel spring 20 elastically deforms (20a ') in the plane direction along the slope of the tooth portion 15b, and the manual winding changeover wheel tooth portion 15b The engagement is disengaged and the hand-wound switching wheel 15 rotates to transmit the rotation to the rotary weight transmission wheel 16 and the rotary weight wheel 17. When the manual winding operation is interrupted, the manual winding switching wheel spring 20 returns the manual winding switching wheel 15 to the initial position.

As described above, the rotary weight transmission wheel 16 to which the rotation is transmitted is transmitted to the power generation rotor 19 via the rotary weight wheel 17 and the power generation rotor transmission wheel 18. These trains are speed-increasing trains, and when the external operation member 7 makes at least one revolution, the power-generating rotor 19 rotates 50 revolutions or more. When the power generation rotor 19 rotates, an induced electromotive force is generated by the relative movement of the coil and the magnet, and the induced electromotive force is rectified to charge the power source 35.

Further, during automatic winding, the rotary weight 22 and the rotary weight wheel 17 are rotated by the movement of the arm and are transmitted to the power generation rotor 19.

Next, the external operation member 7 is pulled out by one step to bring the calendar correction state for the first step into the state. The clutch wheel 9 is moved to the outer peripheral direction of the movement by a well-known operation of the lever 10 and the bolt 11, and the calendar can be corrected.

Further, the external operation member 7 is pulled out to bring the time adjustment state of the second stage. The clutch wheel 9 moves toward the center of the movement by the well-known operation of the lever 10 and the bolt 11.
It is possible to correct the time of meshing with the small iron wheel 26. At this time, the end 11a of the bobbin moves to the position 11a ', and
The spring portion is elastically deformed to the position 20 'in the plane direction, and the bent portion 20a and the manual winding switching wheel tooth portion 15b do not engage with each other. Therefore, even if the external operation member 7 is rotated, the hand-wound switching wheel 15
Cannot move upward, and will idle on the spot, and rotation is not transmitted to the power generation rotor.

In the above description, the corners of the hand-wound wheel 8 and the external operating member 7 that engage with each other may be of any shape that interlocks with rotation.

Further, although the number of teeth of the tooth portions 15a and 15b of the manual winding switching wheel 15 is four in this embodiment, it is not particularly limited to this.

Tooth portions 15a and 15c of the hand-wound switching wheel 15 and tooth portion 16a of the rotary weight transmission wheel
Since the teeth are saw-toothed, they can rotate only in one direction, but if they are chevron-shaped, they can rotate in both directions.

In the present invention, the external operating member 7 is used to generate the rotor 19 for power generation.
The speed increase ratio up to is set to at least 50 times. In this configuration, power generation by the rotary weight 22 while being carried and power generation by manual operation are performed by one generator. Therefore, it is indispensable as a product that the specifications of the generator are set so as to enable performance without shortage when carried. In this case, the number of winding turns of the coil is about 4,500, and the number of interlinking magnetic fluxes passing through the coil is about 7 × 10 ^-7 Weber. On the other hand, the required voltage of the timepiece is about 2V from the performance of the electric double layer capacitor 35 of the power supply, and the voltage drop of the circuit is 1.5V. Therefore, the required electromotive force of the generator is an effective value of 3.5 V, and when f is calculated based on the above condition by e = N × Φ × 2 × π × f, it becomes 250 Hz. (E = voltage, N = number of coil turns, Φ =
The number of interlinkage magnetic fluxes, f = frequency) Here, the rotation speed of the external operation member 7 in the manual operation is limited to about 5 Hz, so that the speed increasing ratio needs to be at least 50 times. In this way, the speed increase ratio is at least
By setting 50 times, it has the effect that one generator can be used.

[Effect of device]

As described above, according to the present invention, the rotating member is rotated even at the time of manual power generation by the transmission unit B having the clutch mechanism that transmits the rotation of the operating member to the rotating member when the operating member is operated. A manual power generation mechanism can be added without drastically changing the number of rotations, and the rotation transmission path for power generation is configured in one system, so consideration is given to the arrangement of multiple systems compared to the rotation transmission that requires multiple systems. There is no need to increase the degree of freedom in arranging the rotation transmission means.

Also, since the rotating member rotates during manual power generation, the rotation given by the manual operation is accumulated as the inertia of the rotating member, so that a stable rotating torque can be given to the generator even if there is unevenness in the manual operation. A stable amount of power generation can be obtained.

In addition, the speed increase ratio in the rotation transmission path from the operating member to the generator is set to 50 times or more, so that the input rotation speed at the time of manual operation with an upper limit is increased and transmitted to the generator, The amount of power generated is the same as the amount of power generated by the natural movements of the members, and it is possible to perform automatic and manual combined power generation in an extremely efficient electronic timepiece.

[Brief description of drawings]

 FIG. 1 is an assembly plan view of the present invention. 2 (a) and 2 (b) are sectional views of the assembly of FIG. FIG. 3 is an explanatory view of the present invention. 7 …… External operation member 8 …… Handwheel 9 …… Troller wheel 10 …… Stitching machine 11 …… Kanuki 12 …… First transmission wheel 13 …… Second transmission wheel 14 …… Handwheel switching gear 15 ...... Handwheel switching wheel 16 ...... Rotating weight transmission wheel 17 ...... Rotating weight wheel 18 ...... Power generation rotor transmission wheel 19 ...... Power generation rotor 20 ...... Manual winding switching wheel Spring 34 ...... Main plate

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shoichi Nagaya 3-3-5 Yamato, Suwa-shi Suwa Seiko Co., Ltd. (72) Inventor Zenji Nishiwaki 3-5 Yamato, Suwa-shi Suwa Co., Ltd. Visit Seiko Building (72) Inventor Naoaki Yasukawa 3-5 Yamato, Suwa City Suwa Seiko Co., Ltd. (72) Inventor Mitsugu Miyasaka 3-5 Yamato Suwa City Inside Suwa Seiko Co., Ltd. (56) References Japanese Patent Publication Sho 56-29234 (JP, B2)

Claims (1)

(57) [Scope of utility model registration request] 1. A rotating member having a rotary weight that rotates by utilizing the movement of a person or gravity, a generator that converts mechanical energy obtained by the operation of the rotating member into electrical energy, and rotation of the rotating member. From transmitting means A for transmitting the motion to the generator, an operating member rotated by a manual operation, and transmitting means B having a clutch mechanism for transmitting the rotation of the operating member to the rotating member when the operating member is operated. The manual power generation mechanism for an electronic timepiece characterized in that the speed increasing ratio in the rotation transmission path from the operation member to the generator is 50 times or more.