JPH063435Y2 - Orgol device - Google Patents

Description

[Detailed description of the device] [Industrial applications]

The present invention relates to an improvement of a music box device in which a ratchet wheel that opposes each diaphragm is rotated by a protrusion provided on a rotating disk, and the vibrating plate is played by the ratchet wheel to make a sound. In particular, the protrusions are provided on two front and back surfaces. The present invention relates to a music box device capable of playing two melodies by mounting the provided rotating disc.

[Prior art]

As one form of a music box, a rotary disk type music box is provided that has a protrusion corresponding to the musical score on both sides of the rotating disc, and rotates the ratchet wheel facing each diaphragm by this protrusion and plays the diaphragm by the ratchet wheel. It is publicly known (see, for example, Japanese Utility Model Publication No. 60-4235), and this rotating disk type music box produces various tones by replacing the rotating disk, as compared with a drum type music box which is another form. It is excellent in that it can be played.

[Problems to be solved by the device]

In order to play a melody accurately in such a rotating disk type music box, it is necessary to prevent the rotating disk from waviness at the position where the protrusion of the rotating disk contacts the ratchet wheel. This is because if the rotary disk undulates at this position, the timing at which the protrusion of the rotary disk contacts the ratchet wheel will be slightly deviated. Therefore, in the conventional rotating disc type music box, a pressing member such as a roller is brought into contact with the flat surface of the rotating disc on the side where the protrusion is not provided, at the position where the protrusion of the rotating disc contacts. Due to the necessity of such a pressing member, conventionally, the idea of providing two protrusions on the front and back surfaces of a rotating disk to play a melody of two songs did not occur. In this way, in the conventional rotating disc type music box, the rotating disc used has a protrusion on only one side, so in order to play different songs, prepare another rotating disc and replace it. There was a drawback that had to be made.

[Means for solving problems]

The present invention has been made in view of the above points, and its purpose is to play a melody of two songs by mounting a rotating disk having protrusions on the front and back surfaces. To provide. Therefore, the above object of the present invention is a music box device capable of playing a melody of two tunes by mounting a rotating disk having protrusions on the front and back sides, and the rotating disk is detachable and rotatable. Support means for supporting the rotating disk, and at least two concentric circles on the front and back of the rotating disk.
The music box device is characterized in that it has at least two contacts that come into contact with the guide surfaces formed at the points and stabilize the rotation of the rotating disk so that it does not undulate.

【Example】

Embodiments of the present invention will be described below with reference to the accompanying drawings. 1 to 5, on the music box base 1,
Posts 2a, 2b, 2 projecting from the music box base 1
The first mounting plate 4 for covering the mainspring power mechanism part and the second mounting plate 5 for covering the sound generating mechanism part, which will be described later, are mounted via c, 2d and the columns 3a, 3b, 3c, 3d. There is. The mainspring power mechanism section includes a power gear (crown gear) 8 of the mainspring 7 housed in the mainspring power chamber 6, an operating gear 9 rotated by the power gear 8, and a speed adjusting mechanism interlocking with the operating gear 9. The speed control mechanism includes a group of interlocking gears 10 rotated by the operating gear 9 and a wind blade 1.
1 is provided. On the other hand, the sounding mechanism portion includes a drive gear 13 fixed to the drive shaft 12 of the operating gear 9 and the drive gear 13
It is composed of a large number of ratchet wheels 15 rotatably fitted on a sleeve 14 which is loosely fitted and supported in a fixed state, and a diaphragm 16 which is mounted on the music box base 1 so as to face each of the ratchet wheels 15. Thus, the drive gear 13 functions as a drive member for a separately provided rotating disk 17. A large number of protrusions 1 are provided on both sides of the rotating disk 17 in correspondence with the musical score.
8, the toothed wheel portion 20 provided on the outer periphery of the boss portion 19 of the rotary disk 17 is engaged with the drive gear 13, and the rotary disk 17
It is designed to rotate. The peripheral edge 21 of the rotary disk 17 and the boss portion 19 are formed to be slightly higher than both surfaces of the rotary disk 9, and 17a is a shaft hole of the rotary disk 17. In addition, a partition wall portion 23 that forms the mainspring power chamber 6 is provided between the first mounting plate 4 and the partition wall 22 standing upright on the music box base 1 and having a substantially arcuate cross section. The one end 12a of the drive shaft 12 described above is supported by the support hole 23a formed in the contour portion 23.
The other end of is supported by a supporting portion 24 protruding from the music box base 1, and 25 is a supporting pin thereof. Meanwhile, the second
A window hole 26 is bored on the mounting plate 5 of the drive gear 13 facing the drive gear 13 and the ratchet wheel 15, and a support shaft 27 is bored in the extension battle of the drive shaft 12. An annular groove 27a is provided in 27 by screwing a set screw 28 or the like (see FIG. 5). A base portion 29a of a holding arm 29 is pivotally mounted on a portion of the first mounting plate 4 immediately above the mainspring power chamber 6 and on an extension line of the drive shaft 12, and a tip portion 29b of the holding arm 29 is attached. Is formed in a hook shape that can be engaged with and disengaged from the annular groove 27a of the support shaft 27 described above. A spring plate 30 is attached to the intermediate portion of the holding arm 29.
The pressing protrusions 30a are provided on the lower surfaces of both ends of the
Reference numeral 0a projects from the hole 31 formed on the pressing arm 29 to the lower side of the pressing arm 29. The pressing arm 29 is covered with a cover body made of synthetic resin except for the tip portion 29b. By screwing the cover body 32 onto the pressing arm 29, the spring plate 30 is fixed to the pressing arm 29 and the cover body 32. Be held in between. Then, the presser arm 2
A fitting hole 33 is bored on the base 29a side of 9, and the fitting hole 33 is loosely fitted into a female screw portion 34 provided on the first mounting plate 4, and is inserted through washers 35, 36, 37. Set screw 3
8 is screwed into the female screw portion 34 to hold the pressing arm 29.
Will be fulfilled. A support portion 39 for supporting the upper end of the mainspring shaft 7a is provided on the rear surface of the first mounting plate 4 in the portion directly below the female screw portion 34. Further, female screw holes 40 and 41 are formed on the holding arm 29, stupid holes 42 and 43 are formed on the cover body 32, and stupid holes 44 are formed on the spring plate 30, respectively, and a set screw 45 is formed on the cover holes 42 and 41. By inserting into 43, 44 and screwing into the female screw holes 40, 41,
The holding arm 29, the spring plate 30, and the cover body 32 are connected. According to the music box device configured as described above, the accommodation opening having a size corresponding to the outer shape when the first mounting plate 4 and the second mounting plate 5 are mounted on the music box base 1 in a box such as a jewelry box. If the box is drilled, the rotating disk type music box can be easily assembled into the box simply by fitting it into this accommodation port, and its fixing is done by screwing the screw holes drilled in the lower surface of the music box base 1. A normal fixing means such as utilization may be adopted.
In addition, the shaft hole 17a of the rotary disk 17 is fitted to the support shaft 27,
Next, the presser arm 29 is operated to rotate the presser foot 29 to the position shown in FIG. 2 and FIG. 5, and the tip 29b of the presser foot 29 is hooked on the annular groove 27a of the support shaft 27. The two pressing projections 30a placed on the rotary disk 17 are lightly pressure-bonded onto the boss portion 19 and the peripheral edge 21 of the rotary disk 17, and the pressing action stabilizes the mounted state of the rotary disk 17 and the toothed portion 20 of the rotary disk 17. It is possible to favorably engage the drive gear 13 with the drive gear 13, and disengage the projection 18 and the ratchet wheel 15.
Therefore, the rotary disk 17 is rotated by the drive of the drive shaft 12, and the vibrating plate 16 is sequentially flipped by the ratchet wheel 15 which is rotated by the protrusion 18 of the rotary disk 17, so that a desired music can be played. Then, in order to play a tune (melody) on the back surface of the rotary disk 17, the pressing arm 29 may be pivotally returned to the first mounting plate 4 side, and the rotary disk 17 may be turned over and attached to the support shaft 27. . In the music box device having the above structure, the first mounting plate 4 has a support portion 46 for supporting the upper end of the worm shaft 11a of the wind blade 11 when the first mounting plate 4 is mounted on the music box base 1. (Shown as a bulging portion in the drawing) is provided, and the fixing state of the first mounting plate 4 stabilizes the mounting state of the speed governing mechanism. 47a, 47 in the figure
b, 47c, 47d and 48a, 48b, 48c, 48d
Is a hole formed in each of the first mounting plate 4 and the second mounting plate 5, 49 is a set screw, and the first mounting plate 4 is fixed to the columns 2a, 2b, 2c, 2d by caulking means or the like. Further, the second mounting plate 5 is screwed to the columns 3a, 3b, 3c, 3d by using a set screw 49.

[Effect of device]

The present invention is as described above, and comprises a supporting means for detachably and rotatably supporting the rotary disk, and contacting guide surfaces formed in at least two concentric circles on the front and back sides of the rotary disk, respectively. Since it has at least two contacts that stabilize the rotation of the rotating disk so that it does not undulate, two rotating melodies can be played by flipping the rotating disk with protrusions on the front and back sides. There is an effect that can be achieved, and its practical value is extremely large.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a perspective view in which a music box mechanism section and other components are separated, FIG. 2 is a plan view, FIG. 3 is a front view, and FIG. 4 is a side view. , FIG. 5 is a front sectional view. In the figure, 1 is a music box base, 4 is a first mounting plate, 5 is a second mounting plate, 6 is a mainspring power chamber, 12 is a drive shaft,
13 is a drive gear, 15 is a ratchet wheel, 16 is a diaphragm, 17 is a rotating disk, 18 is a protrusion, 22 is a partition wall, 23 is a partition wall portion, 26
Is a window hole, 27 is a support shaft, 27a is an annular groove, 29 is a holding arm, 29a is a base portion, 29b is a tip portion, 30 is a spring plate, 3
Reference numeral 0a is a pressing protrusion, and 32 is a cover body.

Claims (3)

[Scope of utility model registration request] 1. A music box device capable of playing a melody of two tunes by mounting a rotating disk (17) having projections (18) on the front and back sides, wherein the rotating disk is detachable. Supporting means (27) for rotatably supporting, and at least two concentric circles on the front and back sides of the rotary disk.
Contact with the guide surfaces (19, 21) formed at the places to stabilize the rotation of the rotating disk so that it does not undulate at least 2.
A music box device having two contacts (30a, 30a). 2. The music box device according to claim 1, wherein the support means is a support shaft (27) for receiving a shaft hole (17a) formed at the center of the rotary disk. Music box device featuring. 3. The music box device according to claim 1 or 2, wherein the tip of the music box device is located above the rotary disk (17) and is attached to or detached from the spindle (27). Rotatable between a first position in which it is movably mounted and a second position in which it can be disengaged from above the rotating disc (17) and the rotating disc (17) can be disengaged from the support shaft (27). A presser arm (29) and an elastic spring plate (30) having a central portion fixed to the presser arm (29), and the at least two contactors (30a, 3a).
0a) is fixed to both ends of the spring plate (30) so that the at least two contacts (30a, 30a)
The music box device is characterized in that is contacted with the guide surfaces (19, 21) of the rotating disk (17) under spring pressure.