JPS6352397B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a music box that always starts playing from the beginning of a song when starting, and immediately stops playing at an arbitrary position when stopping.

Conventional music boxes, for example, have a stopper that forcibly stops the rotation of the regulating wind vanes, or in the case of an electric type, a power switch that turns off the power switch. In some cases, the instrument does not stop immediately, but stops at the position where the song has finished playing. According to the former method, if you want to stop the playing, you can stop it immediately, but the next time you try to start playing, the playing will start from the middle of the song. ,
It's not very pleasant. In addition, according to the latter method, the sound always starts from the beginning of the song and stops at the end of the song, but there is a problem that the sound does not stop immediately even if you try to stop the sound arbitrarily.

The purpose of the present invention is to take advantage of the above-mentioned characteristics of conventional music boxes while eliminating the drawbacks of both. Namely, when starting music, it always starts from the beginning of the song, and when stopping music, it is possible to eliminate the drawbacks of both. To provide a music box that immediately stops sound at a fixed position.

The present invention will be explained below with reference to illustrated embodiments.

In FIG. 1, a first gear 1 is fixed to a shaft 3 which is rotatably supported by a frame 15 and a barrel 16 that houses a drive gear.
is designed to be rotationally driven by the above-mentioned full-force release force. As is well known, the rotational force of the first gear 1 is transmitted to the wind blade 8 via a speed increasing gear train, so that the rotational speed is maintained substantially constant. A drum 4 is fitted onto the shaft 3 so as to be rotatable and movable in the axial direction. As shown in FIG. 2, holes 41, 41 are formed in one end surface of the drum 4 facing the first gear 1.
1 is inserted into the gear 1 loosely, and the drum 4 is driven to rotate together with the gear 1. As is well known, the drum 4 has pins on its circumferential surface that play a predetermined tune by hitting vibrating valves 9 arranged in the order of musical scales as the drum 4 rotates. A coil spring 2 is interposed between the drum 4 and the gear 1, and the drum 4 is normally pushed to the right in FIG. It's getting old. Axis 3
Tapered portions 31, 31 are formed at two locations at the same distance as the distance between the left and right end plates of the drum 4. Leaf springs 6 are mounted on both left and right end plates of the drum 4.
6 is pressed against the drum 4, and the elasticity of the leaf springs 6, 6 urges the drum 4 in a direction away from the vibration valve 9. However, normally, as shown in FIG. 1, the drum 4 is biased to the right in the figure by the biasing force of the spring 2, and the drum 4 is located at a portion away from the tapered portions 31, 31 of the shaft 3. Possibly leaf springs 6,6
The drum 4 is prevented from being deflected by the biasing force of the drum 4, and the vibration valve 9 is placed in a position where the pin on the circumference of the drum 4 can flip the vibration valve 9.
One end of a rod 10 passing through the reference plate 5 is in contact with the right end plate of the drum 4. The rod 10 is adapted to be moved in conjunction with, for example, the opening and closing of the box lid, and when the rod 10 is moved to the left in the figure, the drum 4
The left and right end plates of the drum 4 are moved to the left against the biasing force of the spring 2, and the tapered portions 31, 31 of the shaft 3 are moved to the left.
, and due to the elasticity of the leaf springs 6, 6, the drum 4 is biased by the amount that the diameter of the shaft 3 becomes smaller.
Therefore, the pin on the circumferential surface of the drum 4 and the vibration valve 9 are spaced apart from each other. The left end plate of the drum 4 also has holes 41, as shown in FIG.
A chevron-shaped protrusion 42 is formed at a position farther from the center than 41. The left end plate of the drum 4 has a third
A lateral protrusion 71 at the tip of the stopper 7 as shown in the figure is adapted to come into sliding contact. The protrusion 71 of this stopper 7 corresponds to the protrusion 42 of the drum 4.
Moreover, when the vibrating valve 9 is played by the pins on the circumferential surface of the drum 4 and the song that is being played ends, the protrusion 42 is located on the protrusion 7 of the stopper 7.
It's starting to hit number 1. A bent part 72 is formed in the middle part of the stopper 7, and this bent part 7
2 is located on the side of the rotation path of the flight blade 8. The bending portion 72 of the stopper 7 is bent when the drum 4 is pushed to the left by the rod 10.
However, when the protrusion 42 further pushes the protrusion 71 of the stopper 7 due to the rotation of the drum 4, it enters the rotation passage of the flight blade 8.

For example, suppose that the rod 10 moves to the right in FIG. 1 when the lid of the music box is opened. The drum 4 is biased to the right by the biasing force of the spring 2, and as described above, the pin on the circumferential surface of the drum 4 is in a position where it can flip the vibration valve 9, and the stopper 7 is moved to the right in the figure. The bent portion 72 escapes from the rotation path of the flight blade 8. Therefore, the drum 4 is driven to rotate at a substantially constant speed by the full release force within the barrel 16, and the vibration valve 9 is struck by the pins on the circumferential surface of the drum 4, thereby playing a predetermined song. When the song ends, the protrusion 41 of the drum 4 moves to the stopper 7.
is bent to the left in the figure, but if this is done alone, the bent portion 72 of the stopper 7 is still outside the rotation path of the flight blade 8, so the song will be played repeatedly.

Next, if you try to stop the music from playing, for example, by closing the lid of the music box, the rod 10 will be pushed to the left in FIG. It resists the biasing force and is moved to the left in the figure. When the drum 4 moves to the left in the figure in this way, the left and right end plates of the drum 4 fall into the tapered parts 31, 31 of the shaft 3, and the pin on the circumferential surface of the drum 4 moves away from the vibration valve 9. The song will immediately stop playing. however,
Since the bent portion 72 of the stopper 7 is still outside the rotation path of the flight blade 8, the drum 4 is still driven in rotation. When the drum 4 rotates to the position corresponding to the end of the song, the protrusion 71 of the stopper 7 is further pushed to the left in the figure by the protrusion 42 of the drum 4, and the bent part 72 of the stopper 7 It enters into the rotation path of the blade 8 and prevents the rotation of the flight blade 8, thereby stopping the rotation of the drum 4. Therefore, the next time you start it again, it will start playing from the beginning of the song.

As described above, according to the present invention, when starting, the playing of the song always starts from the beginning, and when stopping, the playing of the song is stopped immediately at an arbitrary position.
It has excellent effects not found in conventional music boxes.

Although the present invention may be freely modified in design without departing from the technical idea described in the claims, modified embodiments will be described next.

In the embodiment shown in FIGS. 4 and 5, the transmission of the rotational driving force to the drum 4 in the embodiment described above is the best at the gear 1.
The rotational driving force is transmitted to the gear 43 at the end of the drum 4 via the intermediate gear 12, whereas the rotational driving force is transmitted to the gear 43 at the end of the drum 4 via the intermediate gear 12. The points are different. The intermediate gear 12 is elongated in the axial direction to allow the gear 43 integrated with the drum 4 to move in the axial direction, and as is clear from FIG. The intermediate gear 12 is disposed at a position such that the meshing of the gears 12 and 43 is maintained even if the drum 4 is moved by the biasing force. It is also assumed that the intermediate gear 12 is configured to transmit rotational force to the governing wind blade via a speed increasing gear train.

Next, the embodiment shown in FIG. 6 will be explained. In FIG. 6, the rotational force of the gear 24, which is rotationally driven by the full release force within the barrel 16, is transmitted to the first gear 1,
The rotational force of the first gear 1 is transmitted to the drum 4 by its projection 11, and a spring 2 is interposed between the gear 1 and the drum 4, which is the same as the embodiment shown in FIG. . However, the difference from the embodiment shown in FIG. 1 is that a flange plate 2 is attached to the shaft 3 on the right side of the drum 4.
2 is inserted through the spring 2, and a spring 23 having a stronger elasticity than the spring 2 causes the flange plate 22 and the drum 4 to slide and bias to the left in the figure against the elasticity of the spring 2. Furthermore, the orientation of the tapered portions 32, 32 of the shaft 3 is reversed from that of the embodiment shown in FIG.
When the stop operating member 20 is pressed down, the flange portion is pushed against the inclined surface 21 of the stop operating member 20, and is moved to the right in the figure against the elasticity of the spring 23. The end plate is provided with a hole 44 into which a stopper is inserted at the end position of the musical piece.

According to this embodiment, when the drum 4 is rotationally driven in the illustrated state, the pins on the circumferential surface of the drum play the vibration valve 9 to play a song, but now, when the operation part 20 is pressed down, the slope 21 of the drum 4 is rotated to the flange. When the plate 22 is moved to the right in the figure along the shaft 3 against the biasing force of the spring 23, the drum 4 is also moved to the right in the figure by the biasing force of the spring 2. Due to this movement of the drum 4, the left and right end plates of the drum 4 have tapered portions 32, 3.
2, and is moved downward in the figure by a leaf spring (not shown), and the pin on the peripheral surface of the drum 4 is separated from the vibration valve 9, and the playing of the song immediately stops. However, the rotation of the drum 4 continues until the position corresponding to the end of the song is reached, and when the drum 4 rotates to the position corresponding to the end of the song, a stopper (not shown) enters the stopper insertion hole 44. However, the rotational drive of the drum 4 is stopped only when the stopper blocks the rotation of, for example, the regulating flight blade. Therefore, in the case of this embodiment as well, when the music is started, the music is always played from the beginning, and when it is stopped, the music stops immediately.

In addition, in the case of an electric drive, the switch may be turned off at the position of the protrusion 42 or plunge hole 44 of the drum. Furthermore, even if the shaft 3 does not have a tapered part, for example, the distance between the vibrating valves and the distance between the pins on the drum circumferential surface in the drum axis direction can be made large, so that the pins on the drum circumferential surface are positioned between the vibrating valves. Alternatively, the drum may be moved until the song stops playing.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing one embodiment of the present invention, and FIG.
The figure is a left side view showing the drum part in the same embodiment as above, FIG. 3 is a perspective view of the stopper part, FIG. 4 is a side view showing only the drum part of another embodiment of the present invention, and This figure is a plan view of the same embodiment, and FIG. 6 is a sectional view showing still another embodiment of the present invention. 1...First gear, 2...Spring, 3...Shaft, 4...
...Drum, 6...Leaf spring, 7...Stopper, 8...
...Flight blade, 9...Vibration valve, 15...Frame,
23... Spring, 31, 32... Taper part, 42
...protrusion.

Claims (1)

[Scope of Claims] 1. An operating member that moves when a sounding start operation is performed and returns when a sounding stop operation is performed, a diaphragm member that is fixed to a frame and has a plurality of vibration valves, and an intermediate member that is supported by the frame. a shaft having a notch in the part thereof, a pin for repelling the vibrating valve on the outer periphery and an end plate, supported movably along the shaft, and when the operating member is at the operating position to start sounding; is moved along the axis by the operating member to a position where the pin engages with the vibration valve, and when the operating member is in the sound stop operating position, it is returned along the axis and attached. a drum which is caused by a force to cause the end plate to fall into a notch in the shaft and into a position where the pin and the vibration valve are not engaged; and at least when the drum is placed into a position where the pin and the vibration valve are not engaged; In sliding contact with the drum,
and a stop member that engages with the protrusion or recess of the drum and displaces when the drum reaches a certain rotational position when the pin of the drum and the vibration valve are not engaged, and stops the rotational drive mechanism of the drum. A music box that instantly stops at a fixed position.