JP2012220393A - Sounding device of cuckoo clock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sounding device of a cuckoo clock, capable of sounding two kinds of tones by using one motor.SOLUTION: In a cuckoo clock having, in a housing 2, a motor mechanism 10 driving a dummy of cuckoo bird 1 and announcing the time by means of a bellows type sound production device 30, the bellows type sound production device 30 is constituted of a sound production part 31 equipped with a sound production hollow body 32 and a bellows 33, a bellows part driving link 34, a sound changing link 35 equipped with a valve 36, a first cam C1, and a second cam C2. The sound production hollow body 32 is equipped with a whistle part 32a and a sound changing hole 32b. When the motor M is actuated, the bellows part driving link 34 is actuated by the first cam C1 and the whistle part 32a of the sound production hollow body 32 rings, and also the sound changing link 35 is actuated by the second cam C2 and the sound changing hole 32b of the sound production hollow body 32 is opened and closed by the valve 36 to acoustically change ringing of the whistle part 32a.

Description

  The present invention relates to a cuckoo clock having a structure in which a pigeon body rings.

  In a cuckoo clock, a claw clock driving device is known in which a pigeon body moves in the front direction so that, for example, a pigeon head part appears and disappears from a window.

  In general, this type of cuckoo clock performs not only the movement of the pigeon at the normal time but also the driving and ringing of the pigeon, such as swinging and making a cry.

  In order to perform such a driving of a pigeon and a sound of a cry, it is convenient that both can be combined with one motor without using an electronic sound. It is known that a drive lever is linked to a lid that opens and closes a fiigo, and a pigeon body is moved by this pushup lever (Patent Document 1).

  Also, as seen in Patent Document 2, the dove support lever is pivotally supported, and the lever is elastically biased in a certain direction. Further, the first and second levers are separately provided on the door opening / closing drive lever. There are also known ones that drive and swing a pigeon support lever.

Japanese Utility Model Publication No. 61-161785 Japanese Utility Model Publication No. 61-52284

  In the above-described cuckoo clock, when the number of parts is reduced and each mechanism is driven by a single motor, one using a push-up lever as in Patent Document 1 or one using a plurality of levers as in Patent Document 2 As such, the mechanism could be labor-saving.

  However, in the ringing device of the cuckoo clock, when the ringing is performed with one motor, the ringing is usually one tone and it is difficult to ring two tones. In view of this, the present invention proposes a sounding device for a cuckoo clock that can perform sounding of two tones while using a single motor.

The invention described in the first claim of the present application is described with the reference numerals used in the embodiments, and a motor mechanism 10 for driving the pigeon body 1 is provided in the housing 2, and the time is reported by the Huigo type sounding mechanism 30. In the cuckoo clock
The motor mechanism 10 includes a motor M fixed to the housing 2, a reduction gear group linked to the motor M, and a cam C linked to the reduction gear group,
The Huygo type sounding mechanism 30 includes a sounding part 31 having a sounding hollow body 32 and a Huygo 33, a bellows part driving link 34, a sound changing link 35, a first cam C1 and a second cam in the cam C. C2 and
The sound generating hollow body 32 includes a whistle portion 32a and a sound changing hole portion 32b, and the fiygo 33 includes a rotating plate portion 33a.
The bellows portion driving link 34 is configured by a first link portion L1 and a second link portion L2 that rotatably connect the opposing end portions L1b and L2b.
The first link portion L1 has a base L1a rotatably attached to the housing 2, and is engaged with and disengaged from the first cam C1 of the cam C between the base L1a and the opposed end L1b. Provided with a protrusion L1c,
The other end L2a of the second link portion L2 is rotatably attached to the turning plate portion 33a of the figo 33,
The sound changing link 35 is rotatably provided on the housing 2, and a rotation fulcrum portion 35 c is provided between the distal end portion 35 a and the other end portion 35 b, and the distal end portion 35 a is connected to the cam. The second cam C2 of C, and a valve 36 that engages and disengages the sound changing hole 32b of the sound generating hollow body 32 is provided at the other end 35b.
The first cam C1 and the second cam C2 of the cam C are configured to include cam portions C1a, C1b, C2a having different phases,
When the motor M is actuated to rotate the cam C, the bellows portion driving link 34 is actuated by the first cam C1 to sound the whistle portion 32a of the sound generating hollow body 32, and the second cam The sound changing link 35 is operated by C2, and the sound changing hole portion 32b of the hollow sound generating body 32 is opened and closed by the valve 36, so that the sound of the whistle portion 32a is changed. Is a ringing device.

  As described above, according to the present invention, in this type of claw clock driving device, the fuigo mechanism is provided with a sound changing link and a cam for engaging and disengaging with this, and the sound generating hollow body is provided with a sound changing hole. Therefore, the sound change link is further activated in addition to the original whigo ringing, and the sounding device for the cuckoo clock that brings the sound change to the whistle ringing can be obtained.

It is a front external view which concerns on the Example of this invention and shows a cuckoo clock. It is a perspective view which shows the drive device concerning the Example of this invention. It is a side view which shows the drive device concerning the Example of this invention. It is a top view which shows the drive device concerning the Example of this invention. It is a longitudinal cross-sectional view which concerns on the Example of this invention and shows the internal mechanism of a drive device from the back side. It is an external view which concerns on the Example of this invention and shows a holder. It is a side view which shows the internal mechanism of the drive device in the Example of this invention, Comprising: It is a figure in which the pigeon body is located in the back | inner side. It is a side view which shows the internal mechanism of the drive device in the Example of this invention, Comprising: It is a figure where the dove body is located in the front side. It is a side view which shows the internal mechanism of the drive device in the Example of this invention, Comprising: It is a figure of the state which the pigeon body is located in the front side and is rock | fluctuating. It is a side view which shows the drive system of the Huigo type sounding mechanism in the Example of this invention, Comprising: (1) is the positional relationship which utters the 1st voice "pa", (2) is the positional relationship in the state which closed the valve, 3) is a diagram showing the positional relationship of the second voice “Po”. It is a side view which shows the internal mechanism (mainly a cam and a limit switch) of a drive device concerning the Example of this invention.

  Embodiments of the present invention will be described below in detail with reference to the drawings. In FIG. 1, a cuckoo clock of this example is a decorative clock in which a clock body 1 and a clock mechanism (not shown) are housed in a housing 2 and a digital clock display 3 is provided on the front of the housing 2. .

  As shown in FIGS. 2 to 9, the drive device for the cuckoo clock of this example includes a motor mechanism 10, a protruding mechanism 20, a fiigo type sounding mechanism 30 and a counting mechanism 40 which will be described in detail later. In this example, with one motor M incorporated in the motor mechanism 10, a protruding operation (protruding mechanism 20) for moving the dove body 1 in and out in the front direction, ringing of the dove body 1 (Figo type sounding mechanism 30), this It is configured to perform all the operations of the counting mechanism 40 that counts up and down swinging of the pigeon body 1 interlocked with the Huigo type sounding mechanism 30 and the sounding and vertical swinging of the pigeon body 1.

  The motor mechanism 10 includes a motor M, a reduction gear group (first gear 11, second gear 12, third gear 13) linked to the motor M and a holder H.

  The motor M is mounted on the housing 2. In this example, a mechanism case 100 is separately provided in the housing 2, and a motor M is provided at a location of the mechanism case 100. Further, the motor M has a motor shaft Ms positioned in a direction orthogonal to the moving direction of the dove main body 1, and a gear Mg is fixed to the motor shaft Ms. The gear Mg meshes with a later-described large-diameter gear 11 a of the first gear 11.

  The first gear 11 includes a large-diameter gear 11a and a small-diameter gear 11b, and is rotatably mounted on a first shaft H1 of a holder H described later. As described above, the large-diameter gear 11a meshes with the gear Mg of the motor M, and the small-diameter gear 11b meshes with a later-described large-diameter gear 12a of the second gear 12.

  The second gear 12 includes a large-diameter gear 12a and a small-diameter gear 12b, and is rotatably mounted on a second shaft H2 of a holder H described later. As described above, the large-diameter gear 12a meshes with the small-diameter gear 11b of the first gear 11, and the small-diameter gear 12b meshes with the third gear 13.

  The third gear 13 is provided coaxially with the first gear 11. In this example, the third gear 13 is rotatably mounted on the first shaft H1 of the holder H. Moreover, the 3rd gear 13 meshes with the small diameter gear 12b of the 2nd gear 12, as mentioned above. Further, the fixed shaft of the third gear 13 is inserted into a shaft hole formed in the mechanism case 100 and is rotatably supported, and a cam C (coaxially fixed) described in detail later on a portion protruding outward from the mechanism case 100. The first cam C1, the second cam C2, and the third cam C3) are fixed.

  The first shaft H1 of the holder H and the fixed shaft of the third gear 13 are provided coaxially as described above. For example, the fixed shaft passes through the holder H to the first gear 11 side. Thus, this is used as the first shaft H1, or the first gear 11 is rotatably mounted on a shaft provided individually on the holder H, and the fixed shaft of the third gear 13 is mounted on this shaft. Both of them may be fixed by press fitting or the like, and these may be used as the first axis H1.

  The holder H is provided so as to cover the first gear 11, the second gear 12, and the third gear 13, and as described above, the first shaft that rotatably supports the first gear 11 and the third gear 13. H1 and a second shaft H2 that rotatably supports the second gear 12 are provided. The first shaft H1 and the second shaft H2 are provided in parallel with the motor shaft Ms.

  Furthermore, the holder H is provided with an arm H3. The arm H3 has a distal end H3a linked to a pivoting portion 1a provided at the lower portion of the pigeon body 1 and a base H3b fixed to the holder H. Note that the pigeon body 1 is provided with a posture holding part 1b at the rear part of the pigeon body. The posture holding portion 1b is slidably mounted on the upper surface of a later-described rotating plate portion 33a (provided in the figo 33 provided in the sound producing portion 31 of the fiigo sound producing mechanism 30). Further, the pigeon body 1 is always located closer to the back side of the window 2a.

  The holder H configured as described above is rotatably provided with the first axis H1 as a fulcrum. The rotation of the holder H is provided such that the holder H comes into contact with the mechanism case 100 at a predetermined angle to prevent further rotation.

  Next, the protruding mechanism 20 will be described. As described above, the protruding mechanism 20 is a mechanism that moves the dove body 1 in and out in the front direction. The motor M of the motor mechanism 10 and the reduction gear group (first gear 11, second gear 12, It is constituted by a third gear 13) and a holder H.

  In the motor mechanism 10 and the projecting mechanism 20 of the present example configured as described above, at the hour, a motor command signal is issued from a clock control unit (not shown), and the motor M is activated. In the standby state of the pigeon body 1 shown in FIG. 7, when the motor M rotates, the first gear 11 rotates, and thereby the second gear 12 rotates. The reduction gear group is subjected to a high load for operating various mechanisms of the cuckoo clock. Therefore, the rotation of the second gear 12 does not rotate the third gear 13 and the large diameter of the first gear 11. As a result, the holder H rotates about the first shaft H1 (the principle of the planetary gear).

  When the holder H is rotated, the arm H3 fixed to the holder H is rotated, and the pigeon body 1 linked to the tip end H3a is moved in the front direction (starting of the protruding operation).

  After the holder H rotates and the pigeon body 1 moves in the front direction (FIG. 8), the holder H comes into contact with the mechanism case 100 soon after that, and the rotation of the holder H stops and the rotation of the arm H3 also stops. This stops the movement of the pigeon body 1 (end of the protruding operation). The head of the pigeon 1 at this time is located at the opening of the window 2a.

  When the rotation of the holder H is stopped, the rotation of the second gear 12 along the large-diameter gear 11a of the first gear 11 is stopped, and the second gear 12 is rotated at that position. Is transmitted to the third gear 13, and after that, the third gear 13 rotates. When the third gear 13 rotates, the fixed shaft of the third gear 13 rotates, so that the cams C (first cam C1, second cam C2, and third cam C3) fixed to the fixed shaft rotate as described later. Along with this, the figo is opened and closed (FIG. 9), the valve is opened and closed, and the switch is turned on and off.

  When the motor M rotates in the reverse direction, the cam C rotates in the reverse direction, and the reverse rotation is prevented by the other member engaged with the cam C. Thus, as in the case of the normal rotation of the motor M described above, the second gear 12 The holder H moves in the opposite direction to the forward rotation of the motor M while meshing along the outer circumferences of the small gear 11b and the third gear 13 of the first gear 11, and the holder H has the first shaft H1 as a fulcrum as described above. Rotates in the opposite direction. As a result, the arm H3 of the holder H rotates in the opposite direction to move the pigeon body 1 in the back direction. When the energization of the motor M is interrupted here, the motor M is restrained and stopped by the static torque of the motor.

  As is clear from the above, in the motor mechanism 10 and the projecting mechanism 20 of this example, when the motor M rotates, the second gear 12 is not fixed, so the holder H rotates, and accordingly the dove body. When 1 moves in the front direction and the rotation of the holder H is prevented, the cam C starts to rotate. Further, when the motor M rotates in the reverse direction, the rotation of the cam C is prevented and the reverse rotation of the holder H starts, so that the pigeon body 1 moves in the back direction.

  In this example, a spring 101 is provided to elastically bias the holder H in the front direction. The spring 101 is, for example, a coil-shaped spring at the center, and is engaged with an appropriate place of the casing 2 (not shown). One end is on the holder H side, and the other end is for changing sound of the Huygo type sound generation mechanism 30 described later. It is made to latch on the link 35 side, respectively. When the spring 101 is used, the above-described protruding operation is reinforced, and instability that may be caused by the movement of the pigeon body 1 can be avoided even if the cuckoo clock is tilted, for example.

  According to the projecting mechanism 20 of this example described above, by using a reduction gear group used for driving a cue clock, for example, the Huygo-type sound generation mechanism 30 and the like, a holder H that holds the reduction gear group is rotatably provided. Thus, by causing the pigeon body 1 to move in and out, the unique pigeon drive device conventionally used can be made unnecessary, and the number of parts can be saved.

  Next, the Huigo type sounding mechanism 30 will be described. The Huygo-type sound generation mechanism 30 of the present example sounds a whistle by the action of the Huygo, alternately changes the tone of the whistle (two tones) for each ringing, and causes the pigeon body 1 to swing up and down as the whistle rings The sound generating portion 31, the bellows portion driving link 34, the sound changing link 35, and the first cam C1 and the second cam C2 of the cam C are configured.

  The sound generating unit 31 includes a sound generating hollow body 32 and a fiygo 33. The sound generating hollow body 32 includes a whistle part 32a and a sound changing hole part 32b. The fiygo 33 includes a rotating body part 33a and a bellows part 33b. In the case of this example, the hole 32b is formed in a main body protrusion 32c provided at the lower part of the sound generating hollow body 32.

  The bellows part driving link 34 is configured by rotatably connecting the first link part L1 and the second link part L2. The first link portion L1 has a base portion L1a rotatably attached to the mechanism case 100, and an opposing end portion L1b is rotatably connected to the opposing end portion L2b of the second link portion L2. In addition, the second link portion L2 has a tip end portion L2a rotatably attached to the mechanism case 100, and an opposite end portion L2b is rotatably connected to the opposite end portion L1b of the first link portion L1.

  And the protrusion L1c which is a cam part is provided in the suitable place of the 1st link part L1. The protrusion L1c is a portion that intermittently contacts later-described cam portions C1a and C1b of the first cam C1 by the rotation of the first cam C1.

  Further, as shown in FIGS. 9 and 10, the sound changing link 35 has a distal end portion 35a that abuts on a cam portion C2a (described later) of the second cam C2, and a hole for changing sound in the other end portion 35b. A valve 36 capable of coming into contact with the portion 32b is mounted. Further, a rotation fulcrum portion 35c that is rotatably supported by the mechanism case 100 is provided at an appropriate position between the tip portion 35a and the other end portion 35b.

  The first cam C1 includes two cam portions C1a and C1b. With the two cam portions C1a and C1b, the rotation plate portion 33a of the figo 33 is rotated twice through the bellows portion driving link 34 by one rotation of the first cam C1. When the turning plate portion 33a of the fiygo 33 is turned, compressed air is supplied to the sound generating hollow body 32, and a sound such as “pa” is generated when the air is discharged from the whistle portion 32a.

  The second cam C2 includes one cam portion C2a. With this one cam portion C2a, the sound changing hole 35b is closed once through the sound changing link 35 by one rotation of the second cam C2, thereby changing the tone of the whistle. Become. When the sound changing hole 32b is closed, the vibration coefficient of the fiygo 33 serving as the whistle vibration medium is changed, so that the compressed air is not changed when discharged from the whistle 32a. For example, a sound such as “po” is generated for a sound that is “pa”.

  The drive timing of the bellows part driving link 34 by the first cam C1 (cam parts C1a, C1b) and the sound changing link 35 by the second cam C2 (cam part C2a) is as follows. .

  When the bellows portion drive link 34 is operated by the cam portion C1a of the first cam C1, the operation of the sound changing link 35 by the cam portion C2a of the second cam C2 is not initially brought. Is emitted.

  Subsequently, before the operation of the bellows portion driving link 34 by the cam portion C1b of the first cam C1, the operation of the sound changing link 35 by the cam portion C2a of the second cam C2 is brought about. The sound changing hole 32b is closed. Then, when the bellows portion driving link 34 is operated by the cam portion C1b of the first cam C1, a “po” sound is emitted.

  In this way, by one rotation of the third gear 13, the first cam C1 and the second cam C2, and the bellows portion driving link 34 and the sound changing link 35, respectively, “pa”, “po”, etc. Two tones will sound.

  In this example, the cam height of the cam portion C1a of the first cam C1 (the distance from the rotation center to the outermost peripheral edge in the radial direction) is formed larger than the cam height of the cam portion C1b. Thus, by setting “the cam height of the cam portion C1a”> “the cam height of the cam portion C1b”, the opening / closing width of the rotating plate portion 33a opened / closed via the bellows portion driving link 34 is increased or decreased. The difference can be provided. And by the magnitude | size of the opening-and-closing width | variety of this rotation board part 33a, an increase / decrease can be brought about in the compressed air supplied to the sound generation hollow body 32, and strength is given to the sound of the whistle part 32a according to this increase / decrease in compressed air. be able to. In the case of this example, in the sound of alternating two tones, it is possible to implement a sound such as a strong “pa” and a weak “po”, and thus it is possible to bring a sense of reality to the sound of the cuckoo clock.

  In this example, as described above, when the cam C is reversely rotated, the reverse rotation is prevented by the other member engaged with the cam C. For example, when paying attention to the first cam C1 (cam portions C1a and C1b), both cam portions C1a and C1b have curved surfaces in the cam surface tip direction when the motor M rotates forward. The cam back surface has a concave shape. Therefore, during the forward rotation of the motor M, the first cam C1 (cam portions C1a and C1b) can smoothly slide on the protrusion L1c of the bellows portion driving link 34 to perform a so-called cam operation. When the motor M is reversely rotated, the back surface of the cam comes into contact with the protrusion L1c and its rotation is prevented. Thereby, as described above, when the motor M rotates in the reverse direction, the rotation of the cam C is prevented, the reverse rotation of the holder H starts, and the pigeon body 1 moves in the back direction.

  Further, the Huygo type sounding mechanism 30 of the present example has a function of swinging the pigeon body 1 in the vertical direction. As described above, since the posture holding portion 1b provided at the rear portion of the pigeon body 1 is slidably mounted on the upper surface of the rotating plate portion 33a of the figo 33, the rotating plate portion 33a has By the rotation operation, the pigeon body 1 swings in the vertical direction. Accordingly, the pigeon body 1 swings up and down in conjunction with the alternating ringing of “pa” and “po” described above.

  In the case of this example, the swinging motion of the pigeon body 1 in the vertical direction results in a swinging width that is large or small with the difference in opening / closing width of the rotating plate portion 33a described above.

  Next, the counting mechanism 40 will be described. As shown in FIG. 11, the counting mechanism 40 is a mechanism that counts the ringing and up-and-down swinging of the pigeon body 1 and includes a limit switch 41 and a third cam C3. A limit switch 41 having a switch lever 41a is attached to the housing 2, and the number of times the cam portion C3a of the rotating third cam C3 contacts the switch lever 41a is counted as the number of on / off electrical conductions in the limit switch 41. Is done.

  In this example, since the third cam C3 includes one cam portion C3a, the switch lever 41a is operated once by one rotation of the third cam C3. Further, when the third cam C3 makes one rotation, the first cam C1 having two cam portions causes the ringing ("pa" "po") of the dove body 1 and the vertical swing of the dove body 1 twice.

  In this regard, in the past, the operation of the ringing and the number of rings was controlled by electrical control or by separately providing a ringing gear and controlling the rotation of the gear. When the mechanism 40 is provided, the mechanism is electrically detected and counted, and using this, the driving device of this example is operated at each hour, and the motor power is turned off or the motor power is turned off when the number of ringings at that time is reached. Therefore, the control circuit and the like can be simplified, and the manufacturing cost can be reduced.

  As described above, according to the claw clock drive device of this example, since each mechanism is devised, it is possible to save the number of parts. 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. In particular, the cuckoo clock of the present example is a clock provided with a decorative clock provided with a digital display unit, but the configuration thereof can also be applied to various clocks and the decorative device itself.

  The cuckoo clock of the present invention is excellent in labor saving of the number of parts, and can be suitably used as a wall clock, a table clock, and an alarm clock.

DESCRIPTION OF SYMBOLS 1 Pigeon body 1a Pivoting part 1b Posture holding part 2 Case 2a Window 3 Clock display part 10 Motor mechanism M Motor Ms Motor shaft Mg Gear 11 First gear 11a Large diameter gear 11b Small diameter gear 12 Second gear 12a Large diameter gear 12b Small gear 13 Third gear C Cam C1 First cam C1a Cam portion C1b Cam portion C2 Second cam C2a Cam portion C3 Third cam C3a Cam portion H Holder H1 First shaft H2 Second shaft H3 Arm H3a Tip H3b Base 20 Projection mechanism 30 Huigo type sound generation mechanism 31 Sound generation portion 32 Sound generation hollow body 32a Whistle portion 32b Hole portion 32c Main body protrusion 33 Huigo 33a Rotating plate portion 33b Bellows portion 34 Bellows portion drive link L1 First link portion L1a Base portion L1b Opposite end Portion L1c Projection L2 Second link portion L2a Front end L2b Opposing end 35 Sound changing link 35a Front end 35b Other end 35c Rotation fulcrum 36 Valve 40 Counting mechanism 41 Limit switch 41a Switch lever 100 Mechanism case 101 Spring

Claims (1)

In a cuckoo clock equipped with a motor mechanism for driving a pigeon body and reporting the time by a Huigo type sound generation mechanism,
The motor mechanism includes a motor fixed to the housing, a reduction gear group linked to the motor, and a cam linked to the reduction gear group,
The Huigo type sound generation mechanism is composed of a sound generation portion provided with a sound generation hollow body and a fiigo, a bellows portion drive link, a sound change link, and a first cam and a second cam in the cam,
The sound generating hollow body includes a whistle part and a sound changing hole, and the figo includes a rotating plate part,
The bellows part driving link is composed of a first link part and a second link part that rotatably connect the opposing end parts,
The first link portion includes a protrusion whose base is rotatably attached to the housing, and between the base and the opposed end, the first cam of the cam engaging and disengaging.
The other end of the second link portion is rotatably attached to the rotation plate portion of the above-mentioned FIGO,
The sound changing link is rotatably provided on the housing, and a rotation fulcrum is provided between the tip and the other end, and the tip is engaged with the second cam of the cam. And the other end portion is provided with a valve that engages and disengages the sound changing hole of the sound generating hollow body,
The first cam and the second cam of the cam are provided with cam portions having different phases,
When the motor is actuated to rotate the cam, the bellows portion driving link is actuated by the first cam and the whistle portion of the sound generating hollow body is ringed, and the sound changing link is caused by the second cam. And a valve for opening and closing the sound changing hole of the sound generating hollow body is opened and closed to cause a sound change in the sound of the whistle part.

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