JP3054943B2 - Clock forward / reverse mechanism and power reserve mechanism using the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a forward / reverse rotation mechanism of a timepiece and a power reserve mechanism using the same, and more particularly, to a forward / reverse rotation of a timepiece which displays the amount of power stored in a mainspring using two display hands or the like. The present invention relates to a mechanism and a power reserve mechanism using the same.

[0002]

2. Description of the Related Art FIG. 5 is a sectional view showing a wheel train structure of a conventional power reserve mechanism. FIG. 6 is a top view showing the wheel train structure of the power reserve mechanism shown in FIG. The wheel train of the power reserve mechanism 500 includes a barrel wheel 501 for accommodating a mainspring serving as a power source, a square wheel 502 mounted on the dial side of the barrel wheel 501, and a planetary intermediate gear 503 meshing with the barrel wheel 501. A planetary wheel 504 rotatably provided at an eccentric portion of the planetary intermediate gear 503; a planetary gear 505 and a planetary pinion 506 fixed to the planetary wheel 504 with the planetary intermediate gear 503 interposed therebetween; and the planetary wheel 504. The sun wheel 507 meshing with the planetary pinion 506, the second sun wheel 508 meshing with the planetary gear 505 of the planetary wheel 504, the display intermediate wheel 510 meshing with the sun pinion 509 of the sun wheel 507, and the display intermediate wheel 510 A display wheel 512 meshing with a display intermediate wheel kana 511;
02 and a second planetary wheel 514 meshing with the second sun gear 513 of the second sun wheel 508.

[0005] Reference numeral 515 is a display determination pin. The display intermediate wheel 510 has a structure that slips on the contact surface when a predetermined torque difference occurs between the display intermediate gear 5101 and the display intermediate wheel 511. The display wheel 512 is provided with a sector-shaped notch 516 for allowing the display determination pin 515 to be seen. The display determining pin 515 is connected to the second train wheel bridge 60.
1 to regulate the rotation angle of the display wheel 512.

Next, the operation of the power reserve mechanism will be described. When the mainspring power is accumulated, first, the square wheel 502 is rotated by an external operation via the crown, the winding stem and the round wheel. Since the rotation of the planetary intermediate gear 503 is regulated by the barrel barrel 501, the planetary intermediate gear 503 is substantially a fixed gear. Square hole wheel 502
Rotation of the planetary intermediate wheel 514, the second sun wheel 508, the planetary wheel 504, the sun wheel 507, the display intermediate wheel 510, the display wheel 5
It is sequentially transmitted to 12. As a result, the display wheel 512 rotates counterclockwise (opposite to the rotation direction during normal hand movement). When the display wheel 512 rotates, the display hand 517 attached to the display wheel 512 rotates in the mainspring power accumulation direction.

When the mainspring is fully wound, a display wheel 51 is displayed.
Since the second sector-shaped notch 516 and the display degree determining pin 515 are engaged with each other, the rotation of the display wheel 512 is restricted. In this case, the display intermediate gear 5101 and the display intermediate wheel Kana 510 are used.
And slip on the contact surface. Therefore, even if the crown is wound too much, the position of the display hand 517 does not change, and no load is applied to the wheel train.

Next, during normal hand operation, the power of the barrel wheel 501 is transmitted from the barrel wheel 5011 to the planetary intermediate gear 503. On the other hand, the second sun wheel 508 coaxial with the planetary intermediate gear 503 meshes with the square wheel 502 via the planetary intermediate wheel 514. Since the square wheel 502 does not rotate during normal hand operation, the second sun wheel 508 is a fixed gear. Therefore, when the planetary intermediate gear 503 rotates, the planetary intermediate gear 5
03 planetary car 504 rotates along the second sun car 508,
Revolve. Sun gear 5 fixed to Taishin 5071
Since 072 and the planetary pinion 506 mesh with each other, the rotation of the planetary wheel 504 is transmitted to the display wheel 512 via the sun gear 5072, the sun shaft 5071, the sun pinion 509, and the display intermediate wheel 510. When the display wheel 512 rotates clockwise, the display hand 517 attached to the display wheel 512 also rotates clockwise. It can be seen that the amount of power stored in the mainspring decreases as the display hand 517 rotates clockwise.

[0007]

In the above-described conventional power reserve mechanism 500, the planetary intermediate gear 514, the planetary gear 50
4. Planetary gear 505, sun wheel 507, second sun wheel 508
A planetary unit composed of the above is arranged around the barrel car 501. For this reason, there is a problem that a plane space for the movement is required for the arrangement of the planetary units. In addition, the planetary unit that constitutes one unit by itself is arranged in the movement. For this reason, there is a problem that the number of parts increases and it takes time to assemble. Furthermore, since torque is obtained from the barrel gear 5011 provided on the outer periphery of the barrel wheel and transmitted to the display wheel 512, there is a problem that the barrel torque is reduced accordingly.

[0008] Watches are often provided with various dynamic decorations and mechanisms. Such a dynamic decoration includes, for example, a doll that moves up and down on a dial. A forward / reverse rotation mechanism such as that used in the power reserve mechanism can be used to drive the path decoration and the device. However, even in such a case, similar to the above, there is a problem that a plane space is required.

In view of the above, the present invention has been made in view of the above circumstances, and a forward / reverse rotation mechanism of a timepiece which can save a plane space of a movement, has a small number of parts, and is easy to assemble, and a power reserve mechanism using the same. The purpose is to provide. Another object of the present invention is to provide a timepiece forward / reverse rotation mechanism capable of suppressing a decrease in barrel torque and a power reserve mechanism using the same.

[0010]

In order to achieve the above object, a forward / reverse rotation mechanism of a timepiece according to a first aspect of the present invention comprises a barrel barrel provided on a barrel barrel of a barrel car, and a rotating mechanism with respect to the barrel barrel. A sun wheel freely penetrated, and a planet wheel provided at the lower or upper part of the barrel wheel at an eccentric position of the barrel wheel, wherein a planetary gear meshes with the barrel true and a planetary gear meshes with the sun wheel. It is provided.

That is, in the forward / reverse mechanism of the timepiece, the planetary wheel is provided at the lower portion or the upper portion of the barrel car. When the barrel barrel rotates together with the square wheel, the barrel wheel is substantially in a fixed state, so that the planetary wheel meshing with the barrel barrel rotates. Since the planetary gear meshes with the sun wheel, the rotation of the planet wheel causes the sun wheel to rotate. on the other hand,
At the time of normal hand movement, the square wheel is in a fixed state due to the hammer, and the planetary wheel revolves by rotation of the barrel wheel. Also, since the planetary gear meshes with the barrel in the fixed state,
Rotation is also performed together with the revolution. Next, since the planetary gear meshes with the sun wheel, the rotation of the planet wheel causes the sun wheel to rotate. At this time, the sun wheel rotates in the opposite direction to that when the square wheel was first rotated. In this way, in the forward / reverse mechanism of this timepiece, forward / reverse rotation is possible, and the planetary wheel is provided at the lower portion or the upper portion of the barrel wheel, so that the plane space of the movement is smaller than that of the case where the planetary unit is provided around the barrel wheel. Can save. Further, since the planetary unit is integrated, the number of parts is reduced, and assembly is simplified. This forward / reverse rotation mechanism can be applied to various clock decorations and devices, in addition to a power reserve mechanism.

In the power reserve mechanism according to the second aspect, when the power of the mainspring is accumulated, the rotation of the square wheel is transmitted to the winding wheel via the intermediate wheel train, so that the indicating hand attached to the winding wheel is rotated. Rotate in one direction, during normal hand operation, to reverse the indicator hand in the other direction by transmitting the rotation of the barrel wheel to the winding wheel via the intermediate wheel train, to rotate the winding wheel forward and reverse In the power reserve mechanism provided with the planetary wheel of the above in the intermediate wheel train, the planetary wheel is assembled to a lower portion or an upper portion of the barrel car.

In the power reserve mechanism, the winding wheel is rotated forward and backward by using a planetary wheel. In this power reserve mechanism, a planetary wheel is attached to a lower portion or an upper portion of a barrel car to be integrated. In this way, there is no need to arrange a planetary wheel around the barrel car, and the plane space of the movement can be saved. Further, when a separate planetary car is provided, a receiving portion or the like is required. However, such a power reserve mechanism does not require such a part, so that the number of parts can be reduced. Also, assembly is simplified.

A power reserve mechanism according to a third aspect of the present invention is the power reserve mechanism, wherein the planetary gear mechanism is further assembled near a center position of the barrel wheel.

If the planetary gear mechanism is assembled in the vicinity of the center of the barrel wheel, a decrease in barrel torque can be suppressed as compared with a power reserve mechanism using the outer periphery of the barrel wheel.

According to a fourth aspect of the present invention, there is provided a power reserve mechanism comprising: a barrel box provided in a barrel box of a barrel box; a sun wheel rotatably penetrating the barrel box; A planetary gear meshed with the barrel of the barrel and the planetary gear meshed with the sun wheel, and a planetary wheel meshed with the sun wheel and transmitting the forward / reverse rotation of the sun wheel. An intermediate wheel train, a winding wheel to which forward and reverse rotation can be transmitted from the intermediate wheel train,
A display member provided on the winding wheel and displaying the amount of power stored by the mainspring on a dial.

In the same manner as described above, the planet wheel is provided at the eccentric position of the barrel box at the lower portion or the upper portion thereof. If the planetary wheel and the barrel wheel are integrated in this way, there is no need to dispose the planetary wheel around the barrel wheel, so that the plane space of the movement can be saved. In addition, the number of parts is reduced by the integration, and the assembly is facilitated.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings. The present invention is not limited by the embodiment.

(Embodiment 1) FIG. 1 is a sectional view showing a wheel train configuration of a power reserve mechanism according to the present invention. FIG. 2 is a top view showing a wheel train configuration of the power reserve mechanism shown in FIG. The wheel train of the power reserve mechanism 100 includes a barrel wheel 1 for accommodating a mainspring serving as a power source, a square wheel wheel 2 fixed to a barrel true 11 of the barrel wheel 1 by a square hole screw 21, and an eccentricity of the barrel wheel 1. A planetary wheel 3 which is located at the lower part of the barrel wheel 1 and a planetary gear 3 of the planetary wheel 3
1 and mesh with the barrel kana 12 penetrated and fixed to the barrel true 11 and the planetary kana 32 of the planetary wheel 3;
A sun gear 4 rotatably penetrated into the barrel 11;
A first stamped intermediate wheel 5 meshing with the sun gear 4, a second stamped intermediate wheel 6 meshed with a first stamped intermediate wheel Kana 51 of the first stamped intermediate wheel 5, and a second stamped intermediate wheel 6 The third winding intermediate wheel 7 meshing with the second winding intermediate wheel kana 61, and the third winding intermediate wheel 7
And a third winding intermediate wheel Kana 71 and a third winding wheel 8 that meshes with the third winding intermediate wheel Kana 71.

The planetary wheel 3 is mounted on the barrel 13 around a planetary guide pin 33 as an axis. The position of attachment to the barrel 13 is near the center of the barrel. The barrel 12 is
It is rotatably supported by the main plate 101 and the barrel holder 102. The sun gear 4 is received by a sun gear stop 41. The first winding intermediate wheel 5 includes a main plate 101 and a second main plate 1.
03 is rotatably supported. An indicator hand (not shown) for displaying the amount of power stored on the dial is attached to the shaft of the winding wheel 8. The rotation of the sun gear 4 is reduced in the interval between the first and second intermediate wheels 5 to 6 and transmitted to the wheel 8.

Next, the operation of the power reserve mechanism 100 will be described. [At the time of mainspring power accumulation] When the hour wheel 2 is rotated by operating the crown (not shown), the barrel 12 fixed to the hour wheel 2 rotates. Since the rotation of the barrel wheel 1 is much slower than the rotation of the square wheel 2, the barrel body 1 can be said to be substantially in a fixed state. Since one end of the mainspring is pressed against the barrel true 11, the mainspring is wound by rotation of the barrel true 11, and power is accumulated. When the barrel wheel 12 rotates with the square wheel 2, the barrel wheel 1 is in a substantially fixed state.
Rotates. Since the planetary gear 3 meshes with the sun gear 4, the rotation of the planetary gear 3 causes the sun gear 4 to rotate. The rotation of the sun gear 4 is transmitted to the stamp wheel 8 via an intermediate wheel train such as the first stamp intermediate wheel 5. When the winding wheel 8 rotates, the display hand attached to the shaft rotates on the dial to indicate the amount of power stored in the mainspring.

[Normal Hand Operation] On the other hand, during normal hand operation, the square wheel 2 is in a fixed state due to a shrinkage (not shown). Also,
Since the planetary car 3 is engaged with the barrel 12 in a fixed state, the planetary car 3 rotates along with the revolution. Next, since the planet wheel 3 meshes with the sun gear 4, the rotation of the planet wheel 3 causes the sun wheel 4 to rotate. The rotation direction of the sun gear 4 is opposite to that during the mainspring power accumulation. The rotation of the sun gear 4 is transmitted to the stamp wheel 8 via an intermediate wheel train such as the first stamp intermediate wheel 5. When the winding wheel 8 rotates, the indicating hand attached to the shaft rotates reversely on the dial. That is, it is displayed that the amount of power stored in the mainspring is reduced by reversing the rotation. The display hand returns to its original position when the amount of power stored in the mainspring has run out.

As described above, the power reserve mechanism 10 of the present invention
According to No. 0, since the planetary gear mechanism including the planetary wheel 3 is provided below the barrel wheel 1, a planetary gear mechanism can be added even when the plane space around the barrel wheel is insufficient. Furthermore, since the planetary gear mechanism is provided near the center of the barrel, a reduction in barrel torque can be suppressed. In addition, planetary car 3
The same effect can be obtained even if is provided above the barrel car 1.

(Embodiment 2) Forward / reverse rotation mechanism 2 of this timepiece
00 is the same as the mechanism shown in FIGS. 1 and 2 and is not shown. Forward / reverse mechanism 200 of this watch
Is Kana Makana 12 provided in the barrel 11 of the barrel car 1.
A sun gear 4 rotatably penetrating the barrel 1.
A planetary gear 3 provided at the eccentric position of the barrel wheel 1 and below the barrel wheel 1, wherein a planetary gear 31 meshes with the barrel barrel 12 and a planetary pinion 32 meshes with the sun gear 4. Is done.

FIG. 3 is an explanatory view showing an example in which a decorative timepiece is constructed using the forward / reverse rotation mechanism 200 of the timepiece according to the present invention. Thus, the rod 201 is attached to the shaft of the winding wheel 8.
Attach the character 20 to the tip of this bar 201
2 and so on. The character 202 moves up and down when the winding wheel 8 rotates forward and backward. The forward / reverse mechanism 200 can be applied to a table clock, a wall clock, and the like, in addition to a wristwatch. Further, as shown in FIG. 4, a cam 203 may be attached to the shaft of the winding wheel 8 to move the plurality of characters 204 linearly. Further, the decoration and the mechanism of the watch are not limited to the examples of FIGS. Also,
The application of the forward / reverse rotation mechanism is not limited to the decoration or the device.
In other words, any device may be used as long as it utilizes the forward and reverse rotation of the winding wheel 8.

[0026]

As described above, in the forward / reverse rotation mechanism of the timepiece of the present invention (claim 1), instead of providing a planetary unit around the barrel case, a planetary wheel is provided at the lower or upper part of the barrel case, At this position, a planetary gear mechanism similar to the conventional one is constructed. For this reason, the plane space of the movement can be saved. Further, since the planetary unit is integrated, the number of parts can be reduced. In addition, assembly is simplified.

In the power reserve mechanism according to the present invention (claim 2), the planetary wheel is assembled to the lower or upper part of the barrel car and integrated to perform forward / reverse rotation. In this way, there is no need to arrange a planetary wheel around the barrel car, and the plane space of the movement can be saved. In addition, the number of parts can be reduced, and assembly is simplified.

In the power reserve mechanism according to the present invention (claim 3), the planetary gear mechanism is assembled near the center of the barrel wheel. For this reason, a decrease in barrel torque can be suppressed as compared with a power reserve mechanism using the outer periphery of the barrel car.

Further, according to the power reserve mechanism of the present invention (claim 4), since the planetary wheel is provided at the eccentric position of the barrel box at the lower portion or the upper portion thereof and integrated, the plane space of the movement can be saved. . In addition, the number of parts is reduced by the integration, and the assembly is facilitated.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a wheel train configuration of a power reserve mechanism according to the present invention.

FIG. 2 is a top view showing a wheel train configuration of the power reserve mechanism shown in FIG.

FIG. 3 is an explanatory view showing an example in which a decorative timepiece is configured using the forward / reverse rotation mechanism of the timepiece according to the present invention.

FIG. 4 is an explanatory view showing an example in which a timepiece with a mechanism is configured using the forward / reverse rotation mechanism of the timepiece according to the present invention.

FIG. 5 is a top view showing a wheel train structure of a conventional power reserve mechanism.

6 is a cross-sectional view showing a wheel train structure of the power reserve mechanism shown in FIG.

[Explanation of symbols]

 REFERENCE SIGNS LIST 100 Power reserve mechanism 1 barrel car 12 barrel barrel kana 2 square wheel 3 planetary gear 31 planetary gear 32 planetary kana 4 sun gear 5 first winding intermediate car 51 first winding intermediate car Kana 6 second winding intermediate wheel 61 The second winding middle car Kana 7 The third winding middle car 71 The third winding middle car Kana 8 The winding car

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁷ , DB name) G04B ^7/ 00-9/00 G04B 1/10 G04B 3/12 G04B 5/02 G04B 19/02

Claims (4)

(57) [Claims] A barrel wheel provided in the barrel barrel of the barrel wheel; a sun wheel rotatably penetrating the barrel barrel; and an eccentric position of the barrel wheel at a lower portion or an upper portion of the barrel wheel. A planetary gear provided with a planetary gear meshing with the barrel barrel and a planetary gear meshing with the sun wheel. 2. At the time of mainspring power storage, the rotation of the square wheel is transmitted to the winding wheel via an intermediate wheel train to rotate the indicating hand attached to the winding wheel in one direction. In transmitting the rotation of the barrel wheel to the winding wheel via the intermediate wheel train to reverse and return the indicating hand in the other direction, a planetary gear mechanism for rotating the winding wheel forward and reverse is provided on the intermediate wheel train. In the power reserve mechanism provided, the planetary gear mechanism is assembled to a lower part or an upper part of the barrel barrel. 3. The planetary gear mechanism is mounted near a center position of the barrel wheel.
The power reserve mechanism according to 1. 4. A barrel arbor provided in a barrel arbor of a barrel arbor, a sun wheel rotatably penetrating the barrel arbor, a position near a rotation center of the barrel arbor, and a lower portion of the barrel arbor or A planetary gear that is provided at an upper portion and in which a planetary gear meshes with the barrel barrel and a planetary gear meshes with the sun wheel; an intermediate wheel train that meshes with the sun wheel and transmits forward / reverse rotation of the sun wheel; A power reserve mechanism, comprising: a winding wheel that transmits forward and reverse rotation; and a display member provided on the winding wheel and displaying a mainspring power storage amount on a dial.