JPH0876745A - Musical box device - Google Patents

Abstract

PURPOSE: To provide a musical box device which moves with noncircular moving loci, makes intricate motions at nonequal velocities, hardly generates function and operation defects, makes it possible to easily obtain the different loci of the motions and has an improved characteristic to expand applications. CONSTITUTION: A holding member 5 is fixed by means of pins 1b and screws 17 to one side on a frame 1. Fixing pins 6 are fixed by caulking to this holding member 5. A cam plate 18 is fixed to the other end of a drum revolving shaft 3 projected outside from the L, holding members 5. An eccentric pin 7 is fixed to the eccentric position of this cam plate 18. A through-hole 8a at one end of an oscillating member 8 is freely rotatably fitted to this eccentric pin 7 and a fixing pin 6 is inserted into a long hole 8b 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 orgol device in which a locus of a rocking member has a non-circular motion and a non-uniform motion.

[0002]

2. Description of the Related Art Conventionally, a rocking mechanism based on an orgol of FIGS. 10, 11 and 12 is known. In this swinging mechanism, the strut 9 "reciprocates in a partial semi-circular orbit around the fulcrum 21 and only swings the strut, so the movement is monotonous. However, since the fixing direction is not determined by the screw tightening force at the time of mounting, the parallelism with the crank plate 24 is not maintained, and there is a drawback that the function and operation are likely to occur. .

[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, the object of the present invention is to perform a non-circular motion and a complex motion of unequal speed, and it is difficult for function / malfunction to occur. It is to propose an augmented olgi device.

[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 cam plate that rotates integrally with the drum, an eccentric pin provided at an eccentric position of the cam plate, and an optional holding member. , And one end rotatably fitted in the eccentric pin, and a long hole provided in the other end is fitted in the fixed pin and rocks in conjunction with the rotation of the rotary drum. The gist is to have a swinging member that moves.

[0005]

When the rotary drum 11 and the drum rotary shaft 3 are rotated, the cam plate 18 and the eccentric pin 7 are rotated, and one end of the swing member 8 is rotated clockwise from the position of FIG. 3 as shown in FIG. ,
The other end is swung and slid with the fixed pin 6 as a fulcrum. At this time, the movement locus of the upper ends 9b of the columns 9 and 9'fixed to the swing member 8 is non-circular as shown by the movement loci α and β in FIG. 9 when the position of the eccentric pin 7 in FIG. 3 is 0 °. Moreover, a complex motion of unequal speed is performed. In FIG. 9, the rotation angle is shown every 30 °.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to one embodiment shown in the drawings.
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. FIG. 5B is a side view of the holding member, FIG. 5A is a side view of the holding member, and FIG. 6A is a front view of the cam plate. 7B is a side view of the cam plate, FIG. 7 is a side view of the fixing pin, FIG. 8 is an exploded perspective view of the holding member, the swinging member, the cam plate, and the fixing pin, and FIG. 9 is an operation explanatory view of the music box device. Is.

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 pins 15 planted in the rotary drum 11 bounce the plurality of valves 4a of the diaphragm 4 to make the music sound. 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. A fixing pin 6 is caulked and fixed to the holding member 5. A cam plate 18 having a tooth profile formed on the outer periphery in the drawing is fixed to the other end of the drum rotating shaft 3 protruding outward from the holding member 5. An eccentric pin 7 is fixed to an eccentric position of the cam plate 18. The eccentric pin 7 has a through hole 8a at one end of the swing member 8.
Is rotatably fitted, and the fixed pin 6 is fitted in a long hole 8b 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 small diameter portion 6a of the fixing pin 6 is fitted into the through hole 5g and fixed by caulking. The fixing pin 6 may be fixed to the through hole 5h. The outer shape of the fixing pin 6 is the small diameter portion 6a.
A fitting insertion portion 6c that is fitted and inserted into the large diameter portion 6b and the long hole 8b is formed, a screw hole 6d is formed in the fitting insertion portion 6c, and a screw 19 is screwed. A through hole 8a is rotatably fitted in the outer peripheral fitting insertion portion 7a of the eccentric pin 7, a screw hole 7b is formed in the fitting insertion portion 7a, and a screw 20 is screwed therein. As shown in FIGS. 1, 3, 5, and 8, the swing member 8 has a through hole 8a at one end and a long hole 8b at the other end, and a through hole 8c is formed in a direction perpendicular to the through hole 8a. 8d is drilled. Through hole
The lower ends 9a of the columns 9, 9'are fixed to 8c, 8d. An ornament not shown is attached to the upper ends 9b of the columns 9 and 9 '. One of the columns 9 and 9'may be omitted.

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 15a of the diaphragm 4 is flipped by the pin 15 and the music is played. When the rotary drum 11 and the drum rotary shaft 3 are rotated, the cam plate 18 and the eccentric pin 7 are rotated. When the eccentric pin 7 is rotated, one end of the swing member 8 is rotated clockwise from the position of FIG. 3 as shown in FIG. 9, and the other end is swung and slid with the fixed pin 6 as a fulcrum. At this time, the movement locus of the upper ends 9b of the columns 9, 9'fixed to the swing member 8 is the eccentric pin 7 of FIG.
If the position is set to 0 °, a non-circular motion and a non-uniform velocity complex motion are performed as the motion loci α and β in FIG. In FIG. 9, the rotation angle is shown every 30 °.

When the music box device is constructed as described above, the motion loci α and β of the upper ends 9b of the columns 9 and 9'are non-circular motions, and intricate motions of non-constant velocity are carried out. With the sound of Le, you can get an action that interests you. Further, since the holding member 5 is fixed to the frame 1 with the pin 1b and the screw 17, positioning and fixing are easy, and at the same time, the holding member 5
And the parallelism between the cam plate 18 and the eccentric pin 7 are maintained.
Malfunctions are unlikely to occur, and by changing the fixing positions of the fixing pin 6 and the columns 9, 9 ', different loci of movements can be easily obtained, and the application developability is increased.

[0012]

When the present invention is configured as described above, the motion locus is a non-circular motion, and a complex motion of inconstant speed is performed, so that an action that gives interest to the motion together with the sounding of the music instrument is performed. can get. Furthermore, the holding member can be easily positioned and fixed to the frame, and the holding member and the cam plate and the eccentric pin are kept parallel to each other so that malfunctions and functions are unlikely to occur. Thus, it is possible to provide an orgol device having excellent effects such that loci of different movements can be easily obtained and the applicability is increased.

[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 cam plate, and FIG. 6B is a side view of the cam plate.

FIG. 7 is a side view of a fixing pin.

FIG. 8 is an exploded perspective view of a holding member, a swing member, a cam plate, and a fixing pin.

FIG. 9 is a diagram for explaining the operation of the music box device.

FIG. 10 is a perspective view of a conventional music box device.

[Fig. 11] Fig. 11 is an operation explanatory view of the same golf apparatus.

FIG. 12 is another operation explanatory view of the same golf apparatus.

[Explanation of symbols]

 1 Frame 4 Vibration Plate 4a Valve 5 Holding Member 6 Fixing Pin 7 Eccentric Pin 8 Swinging Member 8b Long Hole 11 Rotating Drum 18 Cam Plate α, β Motion Trajectory

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 cam plate that rotates integrally with the drum, an eccentric pin provided at an eccentric position of the cam plate, and a fixing pin provided at an arbitrary position of the holding member. , One end is rotatably fitted to the eccentric pin, and the elongated hole provided at the other end is fitted to the fixed pin, and has a swing member that swings in synchronization with the rotation of the rotary drum. A musical instrument characterized in that.