JPH0895559A - Music box device - Google Patents

Abstract

PURPOSE: To constitute a music box device in such a manner that moving loci are circular or noncircular and intricate motions of irregular speeds are executed, by which function and operation defects are substantially prevented, the loci of different motions are easily obtd. and application developability is expanded. CONSTITUTION: A holding member 5 is fixed by means of a pin 1b and a screw 17 to one side on a frame 1. A gear shaft 8 is freely rotatably inserted to the holding member 5. A first gear 6 is fixed to the other end of a drum revolving shaft 3 projected outward from the holding member 5. A second gear 6' is fixed to the gear shaft 8. A first eccentric pin 7 and a second eccentric pin 7' are fixed to the respective eccentric positions of the first gear 6 and the second gear 6'. The through-hole at one end of an oscillating member 9 is freely rotatably inserted to the first eccentric pin 7 and the second eccentric pin 7' is inserted into the long hole formed at the other end.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an music instrument in which the locus of motion of a rocking member is circular or non-circular, and also performs non-constant motion.
Device.

[0002]

2. Description of the Related Art Conventionally, a rocking mechanism based on an orgol of FIGS. 15 to 17 is known. This rocking mechanism is supported by the support 19 "
The movement is monotonous only by reciprocating a partial semi-circular orbit around 21 and swinging the pillar. A plate that supports the fulcrum
The screw 22 is fixed to the frame 1'by the screw 23, but since the fixing direction is not determined by the screw tightening force at the time of mounting, the parallelism with the crank plate 24 cannot be maintained, and the function and malfunction may not be maintained. There is a drawback that it is easy to cause.

[0003]

The problem to be solved is that the swinging motion of the support column only reciprocates in a semi-circular orbit, and the motion is monotonous, and the structure is liable to cause malfunction or malfunction. There is. In view of the above-mentioned drawbacks, an object of the present invention is to perform a complicated motion at a motion locus, which is circular motion or non-circular motion, and which is unequal in speed, does not easily cause malfunction or malfunction, and easily obtain loci with different motions. The object is to propose an orgol device whose deployability is increased.

[0004]

According to the present invention, the driving force of a driving source fixed to a frame is transmitted to a rotary drum, and an engaging pin embedded in the rotary drum flips a vibration valve to produce a sound. In an orgol device for ringing, a holding member fixed to the frame, a first gear that rotates integrally with the drum, a first eccentric pin provided at an eccentric position of the first gear, and A second gear engaged with the first gear and rotatably supported by the holding member, a second eccentric pin provided at an eccentric position of the second gear, and one end rotatably attached to the first eccentric pin. The gist of the present invention is to include a long hole that is fitted and inserted into the second eccentric pin, and that has a swing member that swings in synchronization with the rotation of the rotary drum. .

[0005]

When the rotary drum 11 and the drum rotary shaft 3 are rotated, the first gear 6 and the first eccentric pin 7 are rotated clockwise in FIG. 3, and this rotation causes the second gear 6'and the second eccentric pin 7 to rotate. 7'is driven to rotate counterclockwise. When the first eccentric pin 7 is rotated, one end of the swinging member 9 is rotated clockwise from the position of FIG. 3 as shown in FIG. 9 to make a circular motion. At this time, since the other end of the swing member 9 is supported by the second eccentric pin 7 ', it is held at the moving position of the second eccentric pin 7'. The displacement of the first eccentric pin 7 and the second eccentric pin 7 ′ is the first in the vertical direction.
The gear 6 and the second gear 6'are meshed and synchronized. Therefore, the swinging member 9 is always kept horizontal, and the columns 19, 19 'attached thereto are kept vertical while being circularly moved according to the circular movement of the second eccentric pin 7'. That is, the swing member 9
The movement locus of the upper ends a of the columns 19 and 19 'fixed to FIG.
When the position of the first eccentric pin 7 is 0 °, the circular movement is performed as the movement loci α and α ′ of FIG.

[0006]

The present invention will be described below with reference to the illustrated embodiments. FIG. 1 is a cross-sectional plan view of an essential part of the music box, FIG. 2 is a cross-sectional side view of the major part of the music box, FIG. 3 is a side view of the music box incorporating a swinging member, and FIG. A plan view of the member (b)
5A is a side view of the holding member, FIG. 5A is a plan view of the swinging member, FIG. 5B is a side view of the holding member, FIG. 6A is a front view of the first gear, and FIG. 7A is a front view of the second gear, FIG. 7B is a side view of the second gear and a side view of the gear shaft, and FIG. 8 is a holding member, a swing member, a first gear, and a second gear. FIG. 9 is an exploded perspective view of the gear and the gear shaft, and FIG. 9 is a diagram for explaining the circular motion operation of the orgol device.

In the music box, a barrel 2 is fixed on a frame 1 so that one end of all dances in the barrel 2 not shown is the barrel 2.
The other end of the whole dance is locked to the whole dance winding shaft 10, respectively. A drum rotating shaft 3 having a rotating drum 11 fixed thereto is supported on the side wall of the barrel barrel 2 and the projecting bank 1a of the frame 1, and the drum rotating shaft 3
The gear 3a is meshed with a gear that is non-rotatingly fitted to the entire hoisting shaft 10 in the barrel 2. A spur gear 12 is fixed to one end of the rotary drum 11, and a reduction gear train (not shown) is provided between the spur gear 12 and the speed governor 13. It is sped up and rotated. A diaphragm 4 is fixed on the frame 1 with screws 14. A plurality of valves 4a of the vibration plate 4 are formed by a plurality of engagement pins 15 implanted in the rotary drum 11.
Is played and the music is played. A winding key 16 is screwed onto the entire hoisting shaft 10 protruding from the frame 1.

A holding member 5 is fixed to one side of the frame 1 by a pin 1b and a screw 17, as shown in FIGS. 1 to 3 and 8. Drum rotating shaft 3 protruding outward from the holding member 5
The first gear 6 is fixed to the other end of the. A first eccentric pin 7 is fixed to the eccentric position of the first gear 6. A gear shaft 8 is rotatably fitted into the holding member 5 so that the second
The gear 6'is fixed by crimping. A second eccentric pin 7'is fixed to the eccentric position of the second gear 6 '. A through hole 9a at one end of the swing member 9 is rotatably fitted in the first eccentric pin 7, and a second eccentric pin 7'is fitted in a long hole 9b provided at the other end.

As shown in FIGS. 1 to 4 and 8, the holding member 5 has fixed portions 5a and 5b and a holding portion 5c which are bent and formed. Through holes 5d and 5e are formed in the fixing portions 5a and 5b, respectively. Through hole
The pin 1b on the frame 1 is inserted into the frame 5d. Through hole 5e
A screw 17 is inserted in the. In the holding portion 5c, a downward inverted U-shaped notch 5f and a through hole 5g straddling the other end of the drum rotation shaft 3,
5h is formed. The shaft portion 8a of the gear shaft 8 is provided in the through hole 5g.
Is rotatably inserted. The first eccentric pin 7 and the second eccentric pin 7'are fitted with the through holes 9a and the long holes 9b in the outer peripheral fitting portions 7a, respectively. A screw hole 7b is bored in the fitting insertion portion 7a so that the screw 18
Are screwed together. The outer shape of the gear shaft 8 is formed with a shaft portion 8a, a collar portion 8b and a crimp portion 8c. As shown in FIGS. 1, 3, 5, and 8, the swing member 9 has a through hole 9a at one end and a long hole at the other end.
9b is provided, and through holes 9c and 9d are provided at right angles to the through hole 9a. The lower ends of the columns 19, 19 'are fixed to the through holes 9c, 9d. An ornament not shown is attached to the upper ends a of the columns 19 and 19 '. One of the columns 19 and 19 'may be omitted.

When the second gear 6'is caulked and fixed to the caulking portion 8c of the gear shaft 8, the shaft portion 8a is rotatably fitted into the through hole 5g of the holding member 5, and in FIGS. If the first eccentric pin 7 of the first gear 6 and the second eccentric pin 7'of the second gear 6'are adjacent to each other, that is, if the position of the first eccentric pin 7 of the first gear 6 is 0 °, the second gear The first gear 6 and the second gear 6'are meshed so that the position of the second eccentric pin 7'of 6'is at an angle of 180 °, and the center through hole 6a of the second gear 6'is pressed into the caulking portion 8c. The caulking is fixed.

In the operation of the music box device, the winding key 16 of the music box is rotated to wind up the entire dance. When the whole dance is gradually unwound by the speed control unit 13, the rotary drum 11 is rotated and the valve 4a of the diaphragm 4 is flipped by the engaging pin 15 to make the music sound. When the rotary drum 11 and the drum rotary shaft 3 are rotated, the first gear 6 and the first eccentric pin 7 are rotated clockwise in FIG. 3, and this rotation causes the second gear 6'and the second eccentric pin 7 '.
Is driven counterclockwise. When the first eccentric pin 7 is rotated, one end of the swinging member 9 is rotated clockwise from the position of FIG. 3 as shown in FIG. 9 to make a circular motion. At this time, since the other end of the swinging member 9 is supported by the second eccentric pin 7 ',
The second eccentric pin 7'is held at the moving position.

The displacements of the first eccentric pin 7 and the second eccentric pin 7'are synchronized in the vertical direction by the meshing of the first gear 6 and the second gear 6 '. Therefore, the swinging member 9 is always kept horizontal, and the columns 19, 19 'attached thereto are kept vertical while being circularly moved according to the circular movement of the second eccentric pin 7'. That is, the movement locus of the upper ends a of the columns 19, 19 'fixed to the swing member 9 is 0 ° at the position of the first eccentric pin 7 in FIG.
Then, a circular motion is performed as shown by motion loci α and α ′ in FIG. In FIG. 9, the rotation angle is shown every 30 ° and the first
The graphic of the movement of the eccentric pin 7 from 180 ° to 360 ° is omitted.

When the music instrument is constructed as described above, the movement loci α, α'of the upper ends a of the columns 19, 19 'are circularly moved, and the movement of the music instrument is accompanied by the sound of the music instrument. The action to give is obtained. First gear 6, first eccentric pin 7, and second
The gear 6'and the second eccentric pin 7'can be parts having substantially the same shape, and the cost of parts can be reduced because the intermediate gear and its shaft are not required. Further, since the holding member 5 is fixed to the frame 1 by the pin 1b and the screw 17, positioning and fixing are easy, and the holding member 5 and the first gear 6 and the first eccentric pin 7 are parallel to each other. It is difficult to keep function and malfunction due to being kept, and different loci of motion can be easily obtained by changing the fixed positions of the gear shaft 8 and the columns 19, 19 ', and the application developability is increased. Also, since it is not necessary to provide an intermediate gear to match the phases of the first eccentric pin 7 and the second eccentric pin 7 ', the mechanism is simplified and the overall space is reduced.

10 and 11 show a modification in which the phase of the second eccentric pin is changed with respect to that of the first eccentric pin. FIG. 10 is a side view of the music box in which the rocking member is incorporated, and FIG. 11 is the music box. FIG. 6 is an explanatory diagram of a non-circular movement operation of the device.

When the second gear 6'is caulked and fixed to the caulking portion 8c of the gear shaft 8, the shaft portion 8a is rotatably fitted in the through hole 5g of the holding member 5 and the first gear 6 The second eccentric pin 7 ′ of the second gear 6 ′ has an angle of 90 ° with respect to the position of the eccentric pin 7.
In the rotated state, the first gear 6 and the second gear 6 ′ are meshed with each other, and the center through hole 6a of the second gear 6 ′ is press-fitted into the caulking portion 8c to be caulked and fixed. That is, the first eccentric pin 7 is 180
The second eccentric pin 7'is at the 90 ° position when it is at the 90 ° position.
The gear 6 and the second gear 6'are meshed with each other. The other structure is substantially the same as that of the above embodiment.

In the operation of the music box device, the rotary drum 11 is rotated and the music box is played. When the rotary drum 11 and the drum rotary shaft 3 are rotated, the first eccentric pin 7 of the first gear 6 and the second eccentric pin 7'of the second gear 6'are rotated.
When the first eccentric pin 7 is rotated, one end of the swing member 8 is rotated clockwise from the position of FIG. 10 as shown in FIG. 11, and the other end is swung and slid with the second eccentric pin 7'as a fulcrum. Be moved. At this time, the movement loci of the upper ends a of the columns 19, 19 'fixed to the swing member 8 are as follows: the position of the first eccentric pin 7 is 180 ° and the position of the second eccentric pin 7'is 90 ° in FIG. The motion trajectory β in FIG. 11,
A non-circular and inhomogeneous complex motion such as β'is performed. In FIG. 11, the rotation angle is shown every 30 °.

12 to 14 show a second eccentric pin with respect to the second.
FIG. 12 (a) is a front view of the second gear, and FIG. 12 (b) is a partial cross-sectional side view of the second gear and a partial cross-sectional side view of the gear shaft, showing another modification in which the phase of the eccentric pin is changed. 13 (a) is an enlarged front view of the gear shaft, FIG. 13 (b) is an enlarged partial sectional side view of the gear shaft, and FIG. 14 is a side view of the orgol in which the swing member is incorporated.

In another modification, the second gear 6'is fixed to the gear shaft 8 by a non-rotating fit and attached with screws 20. The gear shaft 8 has a shaft portion 8a, a collar portion 8b, a polygonal fitting insertion portion 8d, and a screw hole 8e.
Are formed. A polygonal through hole 6b and a countersink 6c are formed at the center of the second gear 6 '. When the second gear 6'is attached to the gear shaft 8, the shaft portion is inserted into the through hole 5g of the holding member 5.
8a is rotatably fitted and inserted into the first eccentric pin 7 of the first gear 6.
Position of the second eccentric pin 7'of the second gear 6'to change the position of the second gear 6'to engage the first gear 6 and the second gear 6 ', and the polygonal through hole 6b is formed in the polygonal fitting insertion portion 8d. After being inserted, the screw 20 is screwed and attached. The other structure is substantially the same as that of the above embodiment.

When the music apparatus is constructed as in another modification, the locus of the upper ends a of the columns 19, 19 'fixed to the rocking member 8 can be circular. It can be a non-circular motion and a complex motion with non-uniform velocity.

In the above-described modification, the second gear 6'is changed in angle with respect to the first gear 6 and then caulked and fixed to the gear shaft 8. In another modification, the angle is changed in the rotary shaft 8 and screw fixing is performed. However, the second gear 6'is caulked to the rotary shaft 8, and when the angle of the second gear 6'is changed, the screw 17 is loosened to temporarily remove the holding member 5, and after the angle is changed, the screw 17 is used again. You may stop it.

[0021]

According to the present invention configured as described above, when the first eccentric pin and the second eccentric pin are displaced in synchronization with each other, the locus of motion is circularly moved, and the sound of the music box is played. With this, a motion that gives interest to the motion can be obtained. Further, when the phase of the second eccentric pin is changed with respect to the first eccentric pin, the motion locus can be made to be a non-circular motion and a complex motion of unequal speed, and the loci of different motions can be easily obtained. Application expandability is increased. The holding member can be easily positioned and fixed to the frame, and the holding member and the first gear and the first eccentric pin are kept parallel to each other, so that the function and malfunction are unlikely to occur. First
The gear and the first eccentric pin, and the second gear and the second eccentric pin can be parts having substantially the same shape, and since the intermediate gear and the shaft thereof are not required, it is possible to reduce the cost of the parts. Can be provided.

[Brief description of drawings]

FIG. 1 is a cross-sectional plan view of a main part of an music box.

FIG. 2 is a cross-sectional side view of a main part of the music box.

FIG. 3 is a side view of the music box in which the swing member is incorporated.

FIG. 4A is a plan view of a holding member, and FIG. 4B is a side view of the holding member.

5A is a plan view of a swinging member, and FIG. 5B is a side view of a holding member.

FIG. 6A is a front view of the first gear, and FIG. 6B is a side view of the first gear.

7A is a front view of the second gear, and FIG. 7B is a side view of the second gear and a side view of the gear shaft.

FIG. 8 is an exploded perspective view of a holding member, a swing member, a first gear, a second gear, and a gear shaft.

FIG. 9 is an explanatory diagram of a circular movement operation of the music box device.

FIG. 10 is a side view of an orgol in which a swing member is incorporated in a modification in which the phase of the second eccentric pin is changed with respect to the first eccentric pin.

FIG. 11 is an explanatory diagram of a non-circular movement operation of the same golf apparatus.

12 is another modification in which the phase of the second eccentric pin is changed with respect to the first eccentric pin, FIG. 12 (a) is a front view of the second gear, and FIG. 12 (b) is a partial cross-section of the second gear. It is a side view and a partial cross section side view of a gear shaft.

FIG. 13A is an enlarged front view of a gear shaft, and FIG. 13B is an enlarged partial cross-sectional side view of the gear shaft.

FIG. 14 is a side view of an orgol in which the swing member is incorporated.

FIG. 15 is a perspective view of a conventional music box device.

[FIG. 16] FIG. 16 is an operation explanatory view of the same golf apparatus.

FIG. 17 is another operation explanatory view of the same golf apparatus.

[Explanation of symbols]

 1 frame 4 diaphragm 4a valve 5 holding member 6 first gear 6'second gear 7 first eccentric pin 7'second eccentric pin 9 rocking member 9b long hole 11 rotary drum 15 engaging pin α, α ' , Β, β'movement locus

Claims (1)

[Claims] 1. An orgol device in which a driving force of a driving source fixed to a frame is transmitted to a rotating drum, and an engaging pin embedded in the rotating drum flips a vibration valve to produce a sound. A holding member fixed to the frame, a first gear that rotates integrally with the drum, a first eccentric pin provided at an eccentric position of the first gear, and the first gear, A second gear rotatably supported by the holding member;
A second eccentric pin provided at an eccentric position of the second gear,
An oscillating member having one end rotatably fitted in the first eccentric pin, and a long hole provided in the other end fitted in the second eccentric pin, and oscillating in conjunction with rotation of the rotary drum. An orgol device comprising: