JP2014025717A - Planetary gear mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a planetary gear mechanism capable of obtaining a complicated motion by one motor.SOLUTION: A planetary gear mechanism includes: a toggle mechanism 102 for alternatively energizing a lever body 101 toward stop positions on both sides in a rocking direction; a sun gear 105 arranged in a drive shaft 104; a plate body 107 for supporting a planetary gear 106; a cylindrical body 108 having inner teeth 108a; a revolution transmission shaft 109 arranged in the plate body; a ring cam 110 for operating the lever body; and means 114 for stopping the reverse rotation of the revolution transmission shaft. When the lever body is at one stop position, the lever body is engaged with a revolution transmission shaft side by irregular fitting. When the lever body is at the other stop position, the lever body is engaged with a cylindrical body side by irregular fitting. When the drive shaft is normally rotated, the revolution transmission shaft is normally rotated when the lever body is moved to the other stop position. When the drive shaft is reversely rotated, the lever body is moved to the one stop position when the reverse rotation of the revolution transmission shaft is stopped.

Description

  The present invention relates to a planetary gear mechanism that is driven by the power of a motor.

  In general, there is known a timepiece in which a driving device drives a decorative body to perform a reporting operation at a predetermined time. For example, a cuckoo clock in which a decorative body appears and disappears from a clock housing. Patent Documents 1 to 8 disclose various types of cuckoo clocks having different drive mechanisms. A driving device for driving a decorative body is configured by connecting a rigid element such as a gear or a cam to a motor.

  The basic cuckoo clock is configured such that the decorative body appears and disappears at the correct time, and the time is notified by making the number of appearances of the decorative body different according to the time. Repeat at 1 o'clock once, at 2 o'clock, sequentially at 12 o'clock and 12 times at 12 o'clock.

  On the other hand, a configuration is also known in which a movement in which a decorative body appears and a movement that is driven at a position where the decorative body appears is combined. For example, Patent Document 6 discloses a configuration in which a decorative body appears and disappears with a motor and the decorative body is driven with a solenoid. Further, Patent Document 7 discloses a configuration in which a decorative body is driven by a motor that appears and disappears with a motor, and a tension is transmitted when the decorative body is brought to the appearance position. These devices are configured to notify the time by varying the number of times the decorative body is driven at the appearance position according to the time.

Japanese Utility Model Publication No. 61-52284 Japanese Utility Model Publication No. 61-89185 Japanese Utility Model Publication No. 61-161785 Japanese Utility Model Publication No. 64-3095 Japanese Utility Model Publication 2-34628 Japanese Patent Publication No. 7-56514 Japanese Patent No. 3190836 JP 2002-181962 A

  Now, with respect to a driving device for a decorative body, securing stable driving of the decorative body, improving durability, saving space, and the like are important issues. In particular, a configuration that obtains a more complicated movement from a simple movement of the motor is desirable. The inventor of the present application has started to design a drive device using a planetary gear mechanism in order to obtain a configuration in which the decoration body appears and disappears and is driven at the appearance position by a single motor. It depends on the achievement.

  This invention is made | formed in view of this situation, The objective is to provide the planetary gear mechanism which can obtain a more complicated motion with one motor.

  The invention described in claim 1 of the present application includes a lever body (101) supported so as to be swingable, and a toggle for selectively urging the lever body (101) toward a stop position on both sides of the swinging direction. A mechanism (102), a drive shaft (104) driven by the power of the motor (103), a sun gear (105) provided on the drive shaft (104), and a planetary gear meshing with the sun gear (105) A gear (106), a plate body (107) for rotatably supporting the planetary gear (106), and a planetary gear (106) and the plate provided rotatably about the drive shaft (104); A cylindrical body (108) provided with an internal tooth (108a) for housing the body (107) and meshing with the planetary gear (106); (1 8) The revolution transmission shaft (109) protruding outside, the ring cam (110) provided on the cylindrical surface of the cylindrical body (108), and reverse rotation of the revolution transmission shaft (109) are rotated at a predetermined rotational position. A reverse rotation stopping means (114) that stops at a position where the lever body (101) is operated by the ring cam (110), and when the lever body (101) is in one stop position, When the lever body (101) engages and engages with the revolution transmission shaft (109) side so that the lever body (101) is in the other stop position, the lever body (101) is the cylinder. When the drive shaft (104) rotates forward from the state where the lever body (101) is in the one stop position, the cylindrical body (108) Rotates forward When the bar body (101) moves to the other stop position, the revolution transmission shaft (109) rotates forward, and the drive shaft (104) moves from the state where the lever body (101) is in the other stop position. When reverse rotation occurs, when the reverse rotation of the revolution transmission shaft (109) is stopped by the reverse rotation stop means (114), the cylindrical body (108) rotates reversely and the lever body (101) and the revolution transmission shaft. The planetary gear mechanism is configured such that the engagement with the (109) side is released and the lever body (101) moves to the one stop position.

  The invention described in claim 2 of the present application is that, in claim 1, the reverse rotation stop means (114) includes a reverse rotation stop cam (114a) provided at a tip of the revolution transmission shaft (109) and A reverse rotation stop lever (114b) supported movably, and when the revolution transmission shaft (109) rotates forward, the reverse rotation stop cam (114a) swings the reverse rotation stop lever (114b). When the revolution transmission shaft (109) rotates in the reverse direction, the rotation of the revolution transmission shaft (109) stops when the reverse rotation stop lever (114b) meshes with the reverse rotation stop cam (114a). This is a planetary gear mechanism configured as described above.

  The invention described in claim 3 of the present application is that, in claim 2, the lever body (101) is provided with an arm-shaped engaging projection (101b), and the lever body (101) is at the other stop position. When brought, the front end of the engaging protrusion (101b) is engaged with the engaging recess (108b) provided on the bottom surface of the cylindrical body (108), and the lever body (101) is stopped on the one side. When brought into the position, the tip of the engaging convex portion (101b) is engaged with the engaging concave portion (109a) provided in the reverse rotation stop cam (114a), and the reverse rotation stop lever (114b) ) By setting the portion facing the reverse rotation stop cam (114a) to be larger than the width of the engagement recess (109a), the engagement recess (109a) becomes the reverse rotation stop lever (114b). To act A planetary gear mechanism having the configuration as no.

  According to the planetary gear mechanism of the present invention, more complicated movement can be obtained with one motor.

1 is a front view showing a timepiece device according to an embodiment of the present invention. It is a front view which shows the timepiece apparatus which concerns on the Example of this invention and the decoration body appeared. It is a front view which shows the timepiece apparatus in the state which concerns on the Example of this invention and the decoration body is driving in the appearance position. FIG. 6 is a perspective view (upward and diagonally right front) showing the timepiece unit according to the embodiment of the present invention. FIG. 4 is an exploded perspective view (slanting upper right on the front) showing the timepiece unit according to the embodiment of the present invention. FIG. 6 is a perspective view showing the timepiece unit according to the embodiment of the present invention (back right diagonally lower side). FIG. 6 is an exploded perspective view (back side diagonally lower right) showing the timepiece unit according to the embodiment of the present invention. It is a front view which shows the timepiece unit in the state which concerns on the Example of this invention and removed the sound generation means and the housing. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view (upward diagonally to the front right) showing a main part of a drive device according to an embodiment of the present invention. FIG. 4 is a perspective view (in front of the right upper side) illustrating the inside of the main part of the drive device according to the embodiment of the present invention. It is a front view which shows the principal part inside a drive device concerning the Example of this invention. It is a side view which shows the inside of the principal part of a drive device concerning the Example of this invention. FIG. 4 is a top view illustrating the inside of a main part of the drive device according to the embodiment of the present invention. It is a bottom view which shows the principal part inside a drive device concerning the Example of this invention. FIG. 5 is a perspective view (upwardly diagonally to the front right) showing the inside of the main part of the drive device in a state where the link mechanism is operated by the decorative body operating cam according to the embodiment of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view (upwardly diagonally to the front right) showing the inside of a motor and a cylinder according to an embodiment of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional perspective view (downward and diagonally to the front right) showing a cylindrical body and a revolution transmission shaft according to an embodiment of the present invention. FIG. 4 is a front sectional view showing the inside of the main part of the drive device according to the embodiment of the present invention. FIG. 6 is a front cross-sectional view illustrating the inside of a main part of the drive device in a state where the link mechanism is operated by the decorative body operation cam according to the embodiment of the present invention. It is a front sectional view showing a cylindrical body in a state where it is related to an example of the present invention and a lever body is in one stop position. FIG. 6 is a front sectional view showing a cylindrical body in a state where the lever body is in the other stop position according to the embodiment of the present invention. It is a front sectional view showing the reverse rotation stop means in the state where it relates to the example of the present invention and the revolution transmission shaft has stopped. It is a front sectional view showing the reverse rotation stop means in the state where it is related to the example of the present invention and the revolution transmission shaft is rotating. It is a side sectional view showing an ornament concerning an example of the present invention. It is a side sectional view showing a decoration object in a state where it relates to an example of the present invention and is driven in an appearance position. It is a perspective view (front left diagonal upper) which shows a sound-producing means concerning the Example of this invention. FIG. 4 is an exploded perspective view (upwardly diagonally to the left of the front side) illustrating the sound generation unit according to the embodiment of the present invention.

  Embodiments of the present invention will be described below with reference to the drawings. The timepiece device 1 shown in FIGS. 1 to 3 includes a time display means 20, a drive device 100 for driving the decorative body 200, and a control means 30 for controlling them, and from a speaker (not shown) at a predetermined time. A notification sound such as music is played, and the decorative body 200 is driven by the driving device 100 to perform a reporting operation. The driving form of the decorative body 200 is a combination of a movement in which the decorative body 200 appears and a movement in which the decorative body 200 is driven at a position where the decorative body 200 appears. In addition, the driving device 100 includes a sound generation unit 300, and the sound generation unit 300 generates a sound when the link mechanism 201 is operated. In the timepiece device 1, the decorative body 200 appears at the hour, and the time is notified by changing the number of times the decorative body 200 is driven at the appearance position corresponding to the time. It is a kind of so-called cuckoo clock.

  The timepiece device 1 of this example is configured by arranging a timepiece unit 10 shown in FIGS. 4 to 8 inside a wall-mounted type timepiece housing 2. A dial 2a is provided on the front surface of the timepiece casing 2, and the time display means 20 is an analog type in which hands 21 and 22 arranged on the dial 2a are driven by a movement 23.

  At the upper part of the dial 2a, a door body 2b that opens and closes mechanically in conjunction with the appearance and appearance of the decorative body 200 is provided. Normally, the decorative body 200 is located in the back of the door body 2b (see FIG. 1), and when it is noon, it moves to the front side and the door body 2b opens and appears (see FIG. 2), and is driven there (see FIG. 1). 3). When the decorative body 200 repeats driving a predetermined number of times, the decorative body 200 moves to the back of the door body 2b to close the door body 2b and return to the normal state.

  The timepiece unit 10 of this example includes a movement 23 for driving hands 21 and 22, a driving device 100 for driving a decorative body 200, a pendulum device 40 for decoration, and a control means 30 for controlling them. It is something that is attached to. This support member 11 is a resin injection-molded member molded in a predetermined shape. The movement 23 is provided at the upper front portion, the circuit board constituting the control means 30 is provided at the lower front portion, and the center of the upper surface is provided. The shaft portion 42 is provided, and the case body 100a of the driving device 100 is provided on the right or left side of the upper surface. Each member is fixed to the support member 11 by screwing, hooking, or bonding.

  In addition, battery boxes 11a are integrally provided at both left and right ends of the back surface of the support member 11, and the swinging region of the pendulum 41 is positioned between the battery boxes 11a. The timepiece device 1 is driven using a battery attached to the battery box 11a as a power source.

  The pendulum device 40 decorates the timepiece device 1. The pendulum device 40 includes a pendulum 41, a shaft portion 42 that supports the pendulum 41 in a swingable manner, and a pendulum drive unit 43 that swings the pendulum 41. As viewed from the front of the watch housing 2. The shaft portion 42 is provided by fitting an edge-shaped member on the upper portion of the support member 11.

  The pendulum 41 is configured by connecting an upper member supported by the support member 11 and a lower member provided with a swing ball. The upper member hangs down to the back side of the support member 11, and the lower member extends to the lower side of the watch housing 2.

  The pendulum driving means 43 oscillates the pendulum 41 steadily in the left-right direction by a magnetic action, and is provided in the main part of the circuit board constituting the control means 30 and provided in the support member 11. It is exposed to the back side from the hole 11b. Specifically, when the magnet 41a provided on the upper member of the pendulum 41 passes through the vicinity of the magnet 41a, an induced voltage is generated in the detection coil. When the induced voltage is generated in the detection coil, a current flows in the drive coil, and the drive coil Is configured to energize the pendulum 41 by repelling the magnet.

  The movement 23 includes a pointer driving mechanism that rotationally drives the minute hand 21 and the hour hand 22 by the power of the stepping motor, and an hour and hour detection unit that detects an hour and hour from the position of the components of the pointer driving mechanism. I have. The reporting time detection means contacts the contact incorporated in the pointer driving mechanism every time the minute hand 21 makes one rotation, and the photoreflector operates accordingly to acquire the position information of the detecting portion provided in the pointer driving mechanism. By doing so, the rotational position of the hour hand 22 is detected. Alternatively, it is also possible to provide several sets of contact portions and electrode patterns that come into contact with each other according to the position of the hour hand 22 and to detect the rotational position of the hour hand 22 from these contact patterns.

  The control means 30 comprises a circuit board on which predetermined electronic components are mounted. The control means 30 supplies a predetermined pulse current to the stepping motor of the movement 23 and responds to the time detected by the time detection means of the movement 23. Thus, the drive device 100 is controlled.

  As shown in FIGS. 9 to 23, the driving device 100 of this example is formed by using a planetary gear mechanism housed in a case body 100a having a predetermined shape. The driving is performed by one motor 103.

  This drive device 100 is provided inside a case body 100a, a case body 100a attached to the support member 11, a decorative body 200, a lever body 101 supported so as to be swingable with respect to the case body 100a, and the case body 100a. The lever body 101 is operated in the front-rear direction when viewed from the front of the timepiece casing 2 by the power of the motor 103. Specifically, the lever body 101 supported so as to be swingable, the toggle mechanism 102 that selectively biases the lever body 101 toward the stop positions on both sides of the swing direction, and the power of the motor 103 are used. Rotating around the drive shaft 104, a sun gear 105 provided on the drive shaft 104, a planetary gear 106 that meshes with the sun gear 105, a plate body 107 that rotatably supports the planetary gear 106, and the drive shaft 104. A cylindrical body 108 provided with an internal tooth 108a that accommodates the planetary gear 106 and accommodates the planetary gear 106 and the plate body 107, and a front end portion of the cylindrical body 108 that is provided on the plate body 107. A revolution transmission shaft 109 protruding outward, a ring cam 110 provided on the cylindrical surface of the cylindrical body 108, and a device provided at the tip of the revolution transmission shaft 109. Body operation cam 111, rotation speed detection cam 112 provided at the tip of revolution transmission shaft 109, limit switch 113 whose operating shaft 113a is operated by rotation speed detection cam 112, and reverse rotation of revolution transmission shaft 109 And reverse rotation stopping means 114 for stopping at a predetermined rotational position.

  The lever body 101 is supported so as to be swingable with respect to the case body 100 a having a predetermined shape, and includes an arm-shaped ring cam engaging portion 101 a that engages with the ring cam 110, and the ring cam 110 is rotated with the rotation of the cylindrical body 108. Is operated in the front-rear direction. The toggle mechanism 102 is configured by arranging a coiled toggle spring between the lever body 101 and the case body 100a. The lever body 101 stops at one stop position when operated toward the rear by the toggle mechanism 102, and stops at the other stop position when operated toward the front.

  The drive shaft 104 includes a gear portion 104 a that meshes with the output shaft of the motor 103. The motor 103 is installed in the case body 100a, and the drive shaft 104, the cylindrical body 108, and the revolution transmission shaft 109 are provided so as to be rotatable with respect to the shaft 100b supported by the case body 100a. The shaft 100b is horizontally provided in the front-rear direction.

  The reverse rotation stop means 114 of this example includes a reverse rotation stop cam 114a provided at the tip of the revolution transmission shaft 109, and a reverse rotation stop lever 114b supported so as to be swingable with respect to the case body 100a. When the revolution transmission shaft 109 rotates in the forward direction, the reverse rotation stop cam 114a rotates while swinging the reverse rotation stop lever 114b. When the revolution transmission shaft 109 rotates in the reverse direction, the reverse rotation stop lever 114b meshes with the reverse rotation stop cam 114a. In this case, the rotation of the revolution transmission shaft 109 is stopped.

  Further, when the lever body 101 is in one stop position, the lever body 101 engages and engages with the revolution transmission shaft 109 side, and when the lever body 101 is in the other stop position, the lever body 101 Is configured to engage and engage with the cylindrical body 108 side. In the case of this example, the lever body 101 is provided with an arm-shaped engagement convex portion 101b, and when the lever body 101 is brought from one stop position to the other stop position, the distal end portion of the engagement convex portion 101b Is moved in the front-rear direction so as to be engaged with an engagement recess 108 b provided on the bottom surface on the front side of the cylindrical body 108. Further, when the lever body 101 is brought from the other stop position to the one stop position, the front end portion of the engagement convex portion 101b is engaged with the notch-shaped engagement concave portion 109a provided in the reverse rotation stop cam 114a. It has a configuration.

  The reverse rotation stop lever 114b is set such that the portion facing the reverse rotation stop cam 114a is larger than the width of the engagement recess 109a, and the engagement recess 109a does not act on the reverse rotation stop lever 114b. That is, the rotation of the revolution transmission shaft 109 is not stopped by the engagement recess 109a.

  As described above, the engaging projection 101b of the lever body 101 is engaged with the engaging recess 109a provided in the reverse rotation stop cam 114a, whereby the lever body 101 is engaged with the revolution transmission shaft 109 side. ing. Such a configuration is very advantageous in that the planetary gear mechanism can be downsized because there is no need to separately provide a member that fits into the engaging recess 109a on the revolution transmission shaft 109.

  As shown in FIGS. 24 and 25, the decorative body 200 includes a link mechanism 201 that is provided on the lever body 101 and operated by a decorative body operation cam 111. Although the specific configuration of the link mechanism 201 is not particularly limited, in the case of this example, the decorative body 200 simulating a pigeon is supported so as to be swingable with respect to the lever body 101, and when the decorative body 200 swings, The first drive unit 201c simulating beaks and the second drive unit 201d simulating wings are relatively moved. The casing 201b is fixedly connected to the swinging body 201a supported so as to be swingable with respect to the case body 100a, and the casing 201b supports the portion imitating the tail of the decorative body 200. When the decorative body operation cam 111 rotates, the body 200 is lifted by the housing 201b and swings in the front-rear direction. In addition, the shape of the housing 201b can be set as appropriate, and is not limited to the illustrated shape. The housing 201b can be configured to be fixedly connected to a figo 301 of the sounding unit 300 described later.

  The case body 100a has a convex portion A protruding from the upper right side or the left side of the support member 11 toward the upper center of the upper surface, the shaft portion 42 is located immediately below the convex portion A, and the lever body 101 is a convex portion. Projecting upward from the upper surface of A. According to such a configuration, the drive device 100 can be provided reasonably so as not to hinder the swinging of the pendulum 41. In particular, since the case body 100a can be attached and detached according to the presence or absence of the driving device 100, there is an advantage that the supporting member 11 is not unnecessarily increased in size, and is excellent in versatility.

  The timepiece device 1 drives the driving device 100 to perform a reporting operation at the hour, and the rotational speed in the positive direction of the revolution transmission shaft 109 when the driving device 100 is driven corresponds to the time. That is, the time at the hour is notified by changing the number of times the decorative body 200 is driven at the appearance position corresponding to the time displayed by the time display means 20.

  Below, the drive form of the drive device 100 of this example is demonstrated. In the driving device 100, the control unit 30 drives the motor 103 in accordance with information from the reporting time detection unit of the movement 23 at the hour. When the lever body 101 is at one of the stop positions, the decorative body 200 is in the back of the door body 2b (see FIG. 1). When the lever body 101 is in the other stop position, the decorative body 200 appears (see FIG. 2) and is driven there (see FIG. 3).

  First, at the hour, the motor 103 rotates forward from the state where the lever body 101 is in one stop position, and the drive shaft 104 rotates forward. In a state where the lever body 101 is at one stop position, the lever body 101 is engaged with the revolution transmission shaft 109 side. Therefore, the revolution transmission shaft 109 does not rotate, and the cylindrical body 108 rotates forward.

  When the cylindrical body 108 rotates forward, the lever body 101 is pressed toward the other stop position by the ring cam 110, and when the cylindrical body 108 rotates forward to some extent, the toggle mechanism 102 moves to the other stop position all at once. Here, the decorative body 200 appears from the back of the door body 2b.

  When the decorative body 200 appears, the engagement between the lever body 101 and the revolution transmission shaft 109 side is released, and the lever body 101 engages with the cylindrical body 108 side. Therefore, when the drive shaft 104 further rotates in the forward direction, the cylindrical body 108 does not rotate, and the revolution transmission shaft 109 rotates in the forward direction. Accordingly, the decorative body operating cam 111 rotates forward and the link mechanism 201 is operated.

  In the case of this example, the first drive unit 201c and the second drive unit 201d are configured to reciprocate twice each time the decorative body operation cam 111 rotates once.

  That is, when the drive shaft 104 rotates forward from the state where the lever body 101 is in one stop position, the link mechanism 201 is operated when the cylinder body 108 rotates forward and the lever body 101 moves to the other stop position. It has become.

  The control means 30 counts the number of rotations of the decorative body operating cam 111 in the forward direction, that is, the number of rotations of the revolution transmission shaft 109 in the forward direction by the limit switch 113, and reverses the rotation of the motor 103 when it reaches a predetermined number of rotations. To do. The number of rotations of the decorative body operation cam 111 in the positive direction is 1 rotation at 1 o'clock, 2 rotations at 2 o'clock, and sequentially 12 rotations at 12 o'clock.

  When the drive shaft 104 rotates in the reverse direction, the reverse rotation of the revolution transmission shaft 109 is stopped at a predetermined position by the reverse rotation stopping means 114. Then, the cylinder body 108 is forcibly reversely rotated, and the lever body 101 is pressed toward one stop position by the ring cam 110, and when the cylinder body 108 is reversely rotated to some extent, the engagement between the lever body 101 and the cylinder body 108 side. The combination is released, and the lever body 101 is moved to one stop position at a time by the toggle mechanism 102. Here, the decorative body 200 returns from the appearance position to the back of the door body 2b. The reverse rotation of the motor 103 is controlled by a preset time length, and stops when the lever body 101 completely returns to one stop position.

  That is, when the drive shaft 104 rotates in the reverse direction from the state in which the lever body 101 is in the other stop position, the cylinder body 108 rotates in the reverse direction when the reverse rotation of the revolution transmission shaft 109 is stopped by the reverse rotation stop means 114 and the lever body. 101 is disengaged from the revolution transmission shaft 104 side, and the lever body 101 moves to one stop position.

  As described above, the driving device 100 of the present example uses a planetary gear mechanism, and can be used to rationally drive the decorative body 200 in and out and drive at the appearance position with a single motor. .

  Furthermore, the driving apparatus 100 of this example includes a sound generation unit 300, and the sound generation unit 300 generates a sound while the link mechanism 201 is operated. Hereinafter, the sound generation means 300 will be described.

  The sound generation means 300 includes a whigo 301 that follows the link mechanism 201 and a whistle body 302 that generates sound by the airflow from the fiigo 301, and is configured to generate sound when the link mechanism 201 is operated. The fiigo 301 is formed by mounting a bellows-like tube paper (not shown) between the whistle body 302 and a portion that moves relative to the whistle body 302, and this is provided on the upper part of the whistle body 302. At the same time, it is connected to the rocking body 201a via a connecting link 301a. The connecting link 301a is pivotally supported at the base end portion thereof by the swinging body 201a, and the hook-shaped distal end portion is rotatably engaged with a boss provided at a main point of the figo 301. . When the decorative body operation cam 111 rotates, the figo 301 is lifted up by the swinging body 201a via the connecting link 301a and reciprocates in one side up and down, and accordingly, the air accumulated in the tube paper is sent to the whistle body 302. It has become.

  The whistle body 302 includes a sound hole 302a. This driving device 100 includes a sound hole closing body 303 that closes the sound hole 302a, and a sound hole closing body operation cam 304 provided at the tip of the revolution transmission shaft 109, and the revolution transmission shaft 109 is rotated once. The configuration is such that the figo 301 reciprocates a plurality of times and the tone of the sound producing means 300 changes. A decorative body operation cam 111, a sound hole closing body operation cam 304, a reverse rotation stop cam 114a, and a rotation speed detection cam 112 are provided at the front end of the revolution transmission shaft 109 in order from the front side.

  The sound hole closing body 303 includes a valve lever 303a provided with a valve 303b at one end, and a biasing means 303c that biases the valve 303b toward the sound hole 302a. The valve lever 303 a is pivotally provided on the side portion of the whistle body 302. The urging means 303 c is a torsion coil spring mounted between the valve lever 303 a and the whistle body 302.

  The sound hole closing body operation cam 304 is exposed from the case body 100a, and when the whistle body 302 is assembled to the support member 11, it engages with the other end of the valve lever 303a.

  When the sound hole closing body operation cam 304 rotates, the sound hole closing body 303 swings and the tone of the whistle body 302 changes. In the case of this example, when the revolution transmission shaft 109 makes one rotation, the decorative body 200 swings twice and the sound generation means 300 generates twice. Here, the sound hole closing body 303 swings once while the revolution transmission shaft 109 makes one revolution, and the two sounds generated while the revolution transmission shaft 109 makes one revolution have different timbres. ing.

  As described above, the sound generation unit 300 that generates the sound in accordance with the operation of the decorative body 200 at the appearance position may be provided. The pronunciation of the sound generating means 300 is to produce the cry of the decorative body 200. Note that the fiigo 301 and the whistle body 302 are detachable from the support member 11 separately from the case body 100a, and when the cry of the decorative body 200 is generated from the speaker, they can be omitted. It is. That is, the timepiece unit 10 of this example is excellent in versatility in that the presence or absence of the sound generation means 300 can be selected.

  This timepiece device realizes a drive device that performs the appearance of the decorative body, the drive at the appearance position, and the sound generation by the sound generation means with one motor. That is, it is extremely rationally configured as a cuckoo clock. The timepiece unit can fully utilize the internal space of the timepiece housing, and is excellent in versatility. According to the timepiece unit of this example, there is an advantage that the degree of freedom in design of the timepiece can be improved.

  As described above, the planetary gear mechanism of this example is devised so as to obtain a more complicated movement with one motor. In addition, it is needless to say that the configuration of each part in the present example can be appropriately changed in design within the technical scope described in the claims, and is not limited to that illustrated in the drawings. For example, in this example, a decorative body operation cam is provided on the drive transmission shaft, and this decorative body operation cam is configured to operate the link mechanism of the decorative body. Alternatively, a decorative body driven by a train wheel mechanism is provided. It is also possible to provide a gear that meshes with the gear train mechanism on the drive transmission shaft and to drive the decorative body by the power transmission of the gear.

  The planetary gear mechanism of the present invention can be suitably used as a mechanism constituting a driving device for a decorative body.

DESCRIPTION OF SYMBOLS 1 Clock device 2 Clock housing 2a Dial 2b Door body 10 Clock unit 11 Support member 11a Battery box 11b Hole 20 Time display means 21 Pointer (minute hand)
22 Pointer (hour hand)
DESCRIPTION OF SYMBOLS 23 Movement 30 Control means 40 Pendulum device 41 Pendulum 41a Magnet 42 Shaft part 43 Pendulum drive means 100 Drive device 100a Case body A Convex part 100b Shaft 101 Lever body 101a Ring cam engagement part 101b Engagement convex part 102 Toggle mechanism 103 Motor 104 Drive Shaft 104a Gear portion 105 Sun gear 106 Planetary gear 107 Plate body 108 Cylindrical body 108a Internal teeth 108b Engaging recess 109 Revolution transmission shaft 109a Engaging recess 110 Ring cam 111 Decoration body operating cam 112 Speed detection cam 113 Limit switch 113a Operating shaft 114 Reverse rotation stop means 114a Reverse rotation stop cam 114b Reverse rotation stop lever 200 Decorative body 201 Link mechanism 201a Oscillator 201b Housing 201c First drive unit 201d Second drive unit 00 pronunciation means 301 Fuigo 301a connecting link 302 Fuetai 302a sound hole 303 sound hole closure 303a valve lever 303b valve 303c biasing means 304 sound hole blocking body operating cam

Claims (3)

A lever body supported in a swingable manner;
A toggle mechanism that selectively biases the lever body toward the stop positions on both sides of the swinging direction;
A drive shaft driven by the power of the motor;
A sun gear provided on the drive shaft;
A planetary gear meshing with the sun gear;
A plate body rotatably supporting the planetary gear;
A cylindrical body provided rotatably about the drive shaft, and provided with internal teeth for accommodating the planetary gear and the plate body and meshing with the planetary gear;
A revolution transmission shaft provided on the plate body and projecting the tip of the plate body to the outside;
A ring cam provided on a cylindrical surface of the cylindrical body;
Reverse rotation stopping means for stopping reverse rotation of the revolution transmission shaft at a predetermined rotation position;
The lever body is operated by the ring cam,
When the lever body is in one stop position, the lever body engages and engages with the revolution transmission shaft side, and when the lever body is in the other stop position, the lever body It shall be engaged with the cylindrical body by engaging the concave and convex parts,
When the drive shaft rotates forward from the state where the lever body is in the one stop position, the revolution transmission shaft rotates forward when the cylinder body rotates forward and the lever body moves to the other stop position. ,
When the drive shaft reversely rotates from the state where the lever body is at the other stop position, the cylinder body reversely rotates when the reverse rotation of the revolution transmission shaft is stopped by the reverse rotation stop means, and the lever body And the revolution transmission shaft side are released, and the lever body is moved to the one stop position. The reverse rotation stop means includes a reverse rotation stop cam provided at the tip of the revolution transmission shaft, and a reverse rotation stop lever supported so as to be swingable.
When the revolution transmission shaft rotates forward, the reverse rotation stop cam rotates while swinging the reverse rotation stop lever. When the revolution transmission shaft rotates reversely, the reverse rotation stop lever meshes with the reverse rotation stop cam. 2. The planetary gear mechanism according to claim 1, wherein the revolution transmission shaft stops rotating. The lever body is provided with an arm-shaped engagement convex portion,
When the lever body is brought to the other stop position, the distal end portion of the engagement convex portion is engaged with an engagement concave portion provided on the bottom surface of the cylindrical body, and the lever body is brought to the one stop position. When brought, the tip of the engaging convex part shall be engaged with the engaging concave part provided in the reverse rotation stop cam,
The reverse rotation stop lever is configured such that the engagement concave portion does not act on the reverse rotation stop lever by setting a portion facing the reverse rotation stop cam larger than the width of the engagement concave portion. The planetary gear mechanism according to claim 2, wherein:

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