JPH0211118B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cuckoo clock in which the cuckoo body protrudes from a part of the frame when the time is announced. Conventional cuckoo clocks have a structure in which the cuckoo body drive unit is linked to a rack-type counting mechanism consisting of a counting cam, a rack having fan-shaped teeth, a rack feeding cam, a striking lock, and the like. According to this structure, it is impossible to separate the pigeon body drive section from the timepiece mechanical body for driving the hands. For this reason, conventional cuckoo clocks have no choice but to place the cuckoo body above the time display section, and are subject to structural constraints in terms of design, making it difficult to diversify. Also, in terms of structure, the number of parts was large and assembly was troublesome. Therefore, the main object of the present invention is to provide a pigeon body drive block that can be provided separately from a timepiece mechanical body, and one embodiment thereof will be described below. As shown in FIG. 1, the cuckoo clock of this embodiment has a clock mechanical body C that drives hands A and B, a cuckoo body drive block D that is separated from the mechanical body C , and a cuckoo body drive block D that is operated by the cuckoo body drive block D. Pigeon body 1 being moved forward and backward
1 and a sounding device SP . Lead wires l ₁ to _{l 4} are connected between the clock mechanical body C and the pigeon body drive block D.
Signals are exchanged via the lead wires _l5 and l6, and the sounding device SP is connected to the watch mechanical body C via lead wires l5 and _l6 . Therefore, to explain the support structure of the pigeon body 11, as shown in Fig. 2, a window frame 2 is attached to the hole of the clock frame body 1, and a pair of doors 3, 3 are supported on the front side of the window frame 2 so as to be openable and closable. . A guide rail 4 integrally extends rearward from the rear lower side of the window frame 3, and a slider 5 is slidably fitted into the guide rail 4. One end of door links 7, 7 is rotatably engaged with protrusions 6, 6 integrally protruding from the front upper surface of the slider 5, and the other end is rotatably engaged with the rear surface of the doors 3, 3. connected. An arm 8 is integrally formed to extend rearward from the back side of one (left side) of the doors 3, 3, and one end of a connecting lever 9 is rotatably attached to the end of this arm 8 as shown in the second figure. is connected to. One end of the connecting lever 9 is 2
Hemispherical protrusions 8a protruding from both ends of the arm 8 are rotatably fitted into holes 9b formed in the bifurcated portion 9a. The connecting lever 9 has a shaft portion 10 on a part thereof (in this example, the upper surface of the bifurcated portion 9a), and this shaft portion 1
0 penetrates inside from the abdomen of the pigeon body 11, and the pigeon body 11 is rotatably attached to the end thereof. When the pigeon body 11 rotates around the end of the shaft portion 10, its wing portions and beak portion open and close, which is substantially the same as in the prior art. One end of the link 13 is rotatably connected to the fixed member 12 (in the illustrated example, it is formed integrally with the frame 1), and the other end is rotatably connected to the other end of the connecting lever 9. has been done. In normal times, the pigeon body 11 is retracted diagonally behind the frame body 1 as shown in Fig. 2, but
When the slider 5 is moved forward along the guide rail 4, the doors 3, 3 are pushed open via the door links 7, 7 as shown in the fourth figure, and at the same time, the functions of the arm 8, the connecting lever 9, and the link 13 are As a result, the pigeon body 11 flies out from the doors 3, 3 facing directly in front. The pigeon body driving block D for moving the slider 5, that is, the pigeon body 11 forward and backward, is constructed as follows. The pigeon body drive block D is installed on the back side of the timepiece frame body 1 via appropriate means in correspondence with the arrangement position of the pigeon body 11. The shaft of the swing lever 16 is rotatably supported by the upper case 14 and the lower case 15. The turning lever 16 extends diagonally downward to the left in FIG. 2, and is inserted into openings 5a provided on both sides of the slider 5 (see FIG. 5). As shown in FIGS. 6 and 8, an L-shaped arm 17 is formed to hang down from the lower surface of the swing lever 16, and its end is opposed to the cam surface of the pigeon body advancement/retraction cam 19 formed on the lower surface of the gear 18. ing. The pigeon body advancement/retraction cam 19 is approximately
Mountains and valleys are formed extending 180 degrees each.
Further, as shown in FIG. 5, one end of a return spring 21 is hooked to a leg portion 20 provided vertically on the lower surface of the swing lever 16, and the other end is attached to a protrusion 22 provided protrudingly on the bottom surface of the lower case 15. (Fig. 2). The return spring 21 applies a counterclockwise return force to the pivot lever 16 in FIG. When the pivot lever 16 is in the position shown in FIG. 2, the arm 17 is in the valley of the cam 19 (see FIG. 8), and the pigeon body 11 is obliquely retracted to the rear of the frame 1. A pinion 24 meshes with the gear 18, and an output pinion 26 of the motor _M1 meshes with a gear 25 integrated therewith. Motor M ₁ is the first
It is controlled by signals sent from the clock mechanical body C in the figure. Further, a cylindrical pigeon-propelling rocking cam 27 having troughs and peaks is integrally formed on the top surface of the gear 18, and one end 28a of the intermediate lever 28 extends to the top surface of the cam 27. There is. The intermediate lever 28 is rotatably supported by a shaft 30 between legs 29, which hang down integrally from the inner surface of the upper case 14, as shown in the sixth figure. One end of the swing lever 31 passes through a long groove 28a formed at the other end of the intermediate lever 28. The swing lever 31 is rotatably attached to a shaft portion 33 formed on one side of the protrusion 32 on the upper surface of the swing lever 16 . Further, a lock arm 34 extending to the right of the shaft portion of the pivot lever 16 is integrally formed, and a fifth
As shown in the figure, the end of the arm 34 enters the lower surface of a rotating body 35 which is rotatably supported between the cases 14 and 15. A permanent magnet 36 is placed on the top surface of the rotating body 35.
is fixed and located between the magnetic pole parts of the U-shaped stator 37. The stator 37 has a coil 38
is wound around and held by a pillar 39 integrally formed from the cases 14 and 15. The magnetic poles of the permanent magnet 36 are positioned relative to the stator 37 as shown in the second figure when no current is applied, but when the coil 38 is energized, the permanent magnet 36 is rotated approximately 45 degrees clockwise. Further, a pin 40 and a lock pawl 41 are formed to hang down from the lower surface of the rotating body 35. The pin 40 is inserted into a groove of a guide 42 protruding from the lower case 15 to regulate the rotation angle of the rotating body 35 (permanent magnet 36). The lock pawl 41 is an engaging member for the swing lever 16, and its function will be made clear in the explanation of its operation below. Further, on the upper surface of the gear 18, a pigeon body rocking cam 27 is provided.
A switch cam 43 is protruded from the outer periphery of the switch cam 43, and when it rotates, it opens and closes a switch _SW1 provided on the lower surface of the circuit board 44 as shown in FIG. This switch
SW ₁ is for generating a counting signal,
This is a signal synchronized with the engagement between the pigeon body swing cam 27, the peak, and one end 28a of the intermediate lever 28, that is, the swing of the swing lever 31. The counting signal of the switch _SW1 is supplied to the timepiece mechanism C shown in FIG. The clock mechanical body C is a crystal oscillator as shown in FIG.
OS, a frequency divider DV ₁ , a motor drive circuit DR ₁ , and a clock motor M ₂ drives a well-known clock train (not shown) in the clock mechanical body C of FIG. The point that the hands A and B are driven by the clock wheel train is exactly the same as in a normal analog crystal clock. In addition to this, in the cuckoo clock of the present invention, the following cuckoo body drive control circuit is provided in the clock mechanical body C.
DV ₂ is a frequency divider, MC is a minute counter, and HC is an hour counter. MS ₁ , MS ₁₀ , HS ₁ , and HS ₁₀ are setting switches for 1 minute, 10 minutes, 1 o'clock, and 10 o'clock, respectively, and ST is a time setting circuit. DR ₂ , DR ₃ are
This is the drive circuit for the motor M ₁ in the pigeon drive block D , the coil 38 of the electromagnetic locking device.
_F1 to _F4 are flip-flop circuits, _G1 to _G5 are gate circuits, _W1 to _W5 are one-shot pulse generators,
TM is a timer circuit. CT is a counting counter, CM is a coincidence circuit, AL is an alarm control circuit, SP is a sound generating device, CH is a chattering removal circuit, VT is an inverter, and S is a time setting switch. In other words, the watch mechanical body C includes a frequency divider DV ₂ and a minute counter in addition to a normal analog watch drive circuit.
It is equipped with an all-electronic clock mechanism consisting of an MC, an hour counter HC, etc. The counts of minute counter MC and hour counter HC are adjusted to the time indicated by hands A and B by the following procedure. In FIG. 9, by closing the switch S, the gate _G1 is closed and _the counter HC,
Reset MC and divider DV ₂ . Then, the minute counter MC and hour counter HC are set to the time indicated by the hands A and B using the setting switches MS ₁ , MS ₁₀ , HS ₁ , and HS ₁₀ . After setting the time, close switch S, gate _G1 opens, and the clock motor
Timing of counters HC and MC progresses in synchronization with the driving of _M2 . At the hour, a carry signal is generated from the minute counter MC, one pulse is generated from the one-shot pulse generator _W2 , flip-flop circuits _F1 and _F2 are set, and flip-flop circuit _F3 is reset. The output of the flip-flop circuit _F2 starts the motor _M1 of the pigeon drive block D via the drive circuit _DR2 , and the output of the flip-flop circuit _F1 starts the motor M1 of the pigeon drive block D via the drive circuit _DR3 . Coil 38 is energized. By energizing the coil 38, the left and right legs of the stator 37 are magnetized to S and N poles in FIG.
The pin 40 and the lock pawl 41 on the lower surface are rotated to the position shown by the chain line in FIG. That is, the lock pawl 41 enters into the rotation locus of the lock arm 34. On the other hand, the activation of the motor _M1 causes the gear 18 to rotate via the gear trains 26, 25, and 24 in FIG. The pigeon body advancing/retracting cam 19 integrated with the gear 18 rotates counterclockwise in FIG. It turns to the position shown by the chain line in Fig. 8 against the spring force shown in Fig. 2). At this time, the tip of the lock arm 34 comes into contact with the lock pawl 41, but the lock arm 34 pushes the lock pawl 41 away counterclockwise against the suction torque.
The tip of the lock arm 34 is the lock pawl 41.
At the moment the locking claw 41 passes through, the suction torque causes the locking claw 41 to enter the position indicated by the chain line in FIG. 7 again. Thereafter, the locking pawl 41 will maintain this position until the current to the coil 38 is cut off. Therefore,
Once the swing lever 16 swings to the position indicated by the chain line in FIG. 8, the lock arm 34 contacts the lock pawl 41 and is prevented from returning to the original position even if the arm 17 subsequently opposes the valley of the pigeon body advancement/retraction cam 19. . Note that when the arm 17 is at the peak of the pigeon body advancement/retraction cam 19,
The lock arm 34 is slightly separated from the lock pawl 41. By turning the turning lever 16, the slider 5 moves forward along the guide rail 4 as shown in the fourth figure. This opens 3,3 and from there pigeon body 1
1 pops out. At this time, the tail end 11a of the pigeon body 11
A swinging lever 31 is located opposite to the lower part (see FIG. 3). In FIG. 6, the rotation of the gear 18 causes the pigeon body rocking cam 27 on its upper surface to rotate, and one rotation of the gear causes one rotation.
The one end 28a of the intermediate lever 28 engages with the crest of the pigeon body swing cam 27 at a rate of 1.5 times, and repeats swinging about the shaft 30. As the intermediate lever 28 swings, the swing lever on the swing lever 16 swings around the shaft portion 33 as shown in FIG.
1 swings and its wings and beak also open and close. In synchronization with this movement of the pigeon body 11, the gear 1
8 Switch SW ₁ via the switch cam 43 on the top surface
opens and closes (see Figures 4 and 6). By closing switch SW ₁ , the one-shot pulse generator shown in Fig. 9 is activated.
One pulse is generated from _W4 , and the flip-flop circuit _F4 is set. As a result, the alarm control circuit AL operates, and the sounding device SP generates an electronic sound in synchronization with the movement of the pigeon body 11. The output pulses of the one-shot pulse generator _W4 are supplied to the counting counter CT, and the number of time signals is counted. When the time is reported the same number of times as the number of hours, that is, the count value of the counting counter CT is counted as the hour counter.
When it matches the count value of HC, an output is generated from the matching circuit CM and gate _G3 is opened. The pulse generated from the one-shot pulse generator _W3 by the falling edge of the final pulse from the one-shot pulse generator _W4 passes through the gate circuit _G3 . This pulse resets the flip-flop circuit _F1 and stops energizing the coil 38. At this time,
In FIG. 8, the arm 17 is located at the peak of the pigeon body advancing/retracting cam 19, and the lock arm 34 is slightly separated from the lock pawl 41. In other words, the lock claw 41
When the coil 38 is de-energized with no load, the permanent magnet 36 returns to its original position as shown in FIG. 41 returns to the solid line position. However, the swing lever 16 is still in the swing position because the arm 17 is located at the peak of the pigeon body advancement/retraction cam 19. When the arm 17 falls from the peak to the trough of the pigeon body advancing/retracting cam 19, the swing lever 16 returns to the position shown in solid line in FIG. 8 by the spring force of the return spring 21 in FIG. This causes the slider 5 to move backward, so that the pigeon body 11 and the door 3,
3 also returns from the position shown in Figure 4 to the position shown in Figure 2. . Further, in FIG. 9, the timer circuit TM is triggered by the pulse from the gate circuit _G3 , and after a certain period of time has elapsed, an output is generated, the flip-flop circuit _F2 is reset, and the motor _M1 is stopped.
Furthermore, one pulse is generated from the one-shot pulse generator _W5 by the output of the timer circuit TM, and the counting counter CT and the timer circuit TM are reset. In the above embodiment, the pigeon body 11 may move forward and backward in a straight line as in the conventional case. According to the pigeon body drive block of the present invention described in detail above, the conventional complicated rack-type counting mechanism is unnecessary and can be provided separately from the watch mechanical body.
At that time, a switch is provided that outputs a counting signal synchronized with the movement of the pigeon body, so when the sound of the pigeon body is emitted electronically, the sound can be reliably synchronized with the movement of the pigeon body.

[Brief explanation of drawings]

FIG. 1 is a front view schematically showing the overall structure of a cuckoo clock using the cuckoo body drive block of the present invention, FIG. 2 is a sectional view showing the support structure of the cuckoo body and the internal structure of the cuckoo body drive block, and FIG. Figure 3 is a partially sectional side view showing the connection structure between the connecting lever with the pigeon body attached and the door arm.
FIG. 4 is an operating state diagram corresponding to FIG. 2, FIG. 5 is a sectional view taken along the line of FIG. 4, FIG. 6 is a sectional view taken along the line of FIG. 4, and FIG. FIG. 8 is a diagram showing the relationship between the swing lever, the pigeon body advancing/retracting cam, and the lock pawl of the electromagnetic locking device, and FIG. 9 is a diagram of the electric circuit provided in the watch mechanism. DESCRIPTION OF SYMBOLS 1...Clock frame body, 3...Door, 11...Pigeon body, 16...Swivel lever, 17...Arm, 18...Gear, 19...Pigeon body advance/retreat cam, 21...Return spring, 27...Pigeon body rocking cam, 28... Intermediate lever, 31... Swing lever, 34
...Lock arm, 35, 36, 37, 38, 41
...Electromagnetic locking device, 43...Switch cam,
SW ₁ …Switch.

Claims (1)

[Scope of Claims] 1. In a cuckoo clock in which the cuckoo body protrudes from a part of the clock frame when making a time signal, a cuckoo clock that is coaxially provided and rotationally driven by a motor that operates when making a time signal. a body advancement/retraction cam and a pigeon body rocking cam; a swing lever that engages and rotates with the pigeon body advancement/retraction cam to move the pigeon body forward or backward; and directly or indirectly engages with the pigeon body rocking cam. a swinging lever that swings and swings the tail end of the pigeon when the pigeon is in the forward position; and a switch that generates a counting signal by rotation of the pigeon swing cam. , including a movable body that is electromagnetically displaced, and an engaging member that is provided on the movable body and engages and disengages from a part of the swing lever according to the displacement of the movable body, and is moved by the pigeon body rocking cam. 1. A cuckoo body drive block for a cuckoo clock, comprising: an electromagnetic holding device for holding the swing lever rotated by the cuckoo clock in a swing position during a time signal operation. 2. The cuckoo body drive block of a cuckoo clock according to claim 1, wherein the swing lever is mounted on the swing lever. 3. The cuckoo body of a cuckoo clock according to claim 1, wherein the cuckoo body advancing/retracting cam and the cuckoo body swinging cam are formed on the same gear that is rotationally driven by the motor. driving block. 4. The cuckoo clock according to claim 4, characterized in that the cuckoo body advancing/retracting cam is formed on one surface of the gear, and the cuckoo body swinging cam is formed on the other surface of the gear. Body drive block.