JP2001083964A - Music box device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a multifunctional music box device having a role as a driving source for enabling plural movements stably without axial runout for giving furthermore a visual interest to an ornament simultaneously with performance of sounds. SOLUTION: In this music box device having a drum 35 having pins 34 planted on the circumference thereof, a driving shaft 10 for driving rotationally the drum 35, a diaphragm 19 equipped with vibrating reeds for performing sounds by being flicked by the pins 34 by rotation of the drum 35, a frame 13 for fixing the diaphragm 19, and for journaling freely rotatavely the drum 35 and the driving shaft 10, end plates 24, 37 are embedded respectively on both ends of the drum 35, and a transmission shaft 31 is arranged so as to penetrate both end plates 24, 37, and both end sides of the transmission shaft 31 are used as output parts respectively, and a gear 21 is installed on the end plate 24, and an output shaft 27 engaged with the gear 21 and rotated in the direction rectangular with the rotative direction of the drum 35 is installed, and the output shaft 27 is used as the other output part, and the three output parts are rotated, being synchronized with a motion for performing the sounds by flickering the vibrating reeds by rotation of the driving shaft 10 in one direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a music box device,
In particular, the present invention relates to a music box device which enables a driving operation in a different direction in a hand-operated driving system and is easily assembled.

[0002]

2. Description of the Related Art Conventionally, various manual music box devices have been proposed. This manual music box device has a worm, and by manually rotating a crank rotatably supported on a frame, transmits power from the worm to the drum and rotates the drum to produce sound. ing. That is, when the crank is manually rotated, the gear engaged with the worm rotates, and the elastic convex pieces protruding in the outer peripheral direction of the gear are simultaneously operated. Then, the ratchet, which is the end plate of the drum, is pushed and moved by the elastic convex piece of the gear. In this way, the drum rotates integrally with the end plate. When the drum rotates, the pins implanted in the drum play the vibration valve, and the vibration valve emits sound.

The vibration valve is set so as to emit a predetermined sound by bending in a predetermined direction. Therefore, it is necessary to rotate the drum that flips the vibration valve in one direction. In the above-mentioned manual music box device, when the crank, that is, the worm is rotated in the reverse direction, the elastic convex piece of the gear is bent so that no rotational force is transmitted to the ratchet. That is, the elastic convex piece and the ratchet of this gear are
It is a mechanism to rotate the drum only in one direction, so that even if the crank rotates in the opposite direction, the rotational force is not transmitted to the drum and the drum does not rotate in the opposite direction Have been.

[0004]

In the above-mentioned manual music box device, in order to produce a sound, the drum is rotated, and a pin implanted in the drum is engaged with the vibration valve to flex the vibration valve. Then, an operation of releasing the engagement and returning to the original state is performed. Therefore, when rotating the drum while engaging the pin and the vibration valve, a considerably large force is required. As a result, a large force is applied to the engaging portion between the elastic convex piece of the gear and the ratchet, and there is a problem that the elastic convex piece, which is a component of the ratchet mechanism, is apt to be torn or loosened. ing.

[0005] Further, since the power transmission section has a weak portion in terms of strength, for example, it is attempted to use the rotation of a drum or a gear as an output source for a rolling operation of a decorative article imitating an animal or the like. Cannot be a very large power source. Therefore, it is difficult to use the above-mentioned manual music box device as a drive source for driving a large ornament or a large number of ornaments. Therefore, there arises a problem that aesthetics and variability as a music box device cannot be so much generated.

An object of the present invention is to provide a function as a drive source for performing a plurality of operations for giving a visual interest to a decorative article at the same time as playing a sound, without any vibration. It is to provide a multi-function music box device. It is another object of the present invention to provide a music box device provided with a transmission mechanism that is not damaged even when receiving a large load during driving, specifically, a ratchet mechanism. Another object of the present invention is to provide a music box device capable of quickly and reliably assembling a drum and an end plate.

[0007]

In order to achieve the above object, a music box device according to the present invention comprises a drum having pins planted on its outer periphery, a drive shaft for rotating the drum, and a rotation of the drum. In a music box device having a vibration plate provided with a vibration valve that plays a sound when flipped with a pin and a frame that fixes the vibration plate and rotatably supports the drum and a drive shaft, end plates are provided at both ends of the drum, respectively. A transmission shaft is disposed so as to penetrate the both end plates, and both ends of the transmission shaft are used as output portions, respectively, and a gear is provided on at least one of the end plates that rotate by receiving rotation of the drive shaft. An output shaft that meshes with the gears and rotates in a direction perpendicular to the rotation direction of the drum is provided.This output shaft is used as another output unit, and is synchronized with the operation of playing the sound by playing the vibration valve by rotating the drive shaft in one direction. , It rotates the three outputs.

[0008] For this reason, when the ornaments imitating an animal or the like are operated by using the output units provided in multiple directions, for example, a music box that is more visually attractive and attracts the interest of a person. It can be a device.

In another aspect of the invention, in addition to the above-mentioned music box device, a ratchet mechanism for transmitting only rotation of the drive shaft in one direction to the drum to limit the rotation of the drum to one direction is provided. A double gear provided on one of the end plates, and a ratchet supported on a hollow shaft disposed at the center of the double gear. Is mounted so that it is enclosed. For this reason, the ratchet mechanism can be easily accommodated, and the entire apparatus can have a compact structure.

In another aspect of the present invention, in addition to the above-mentioned music box device, the drive shaft is mounted so as to cover each upper end portion of two U-shaped grooves formed in the frame and cooperates with both U-shaped grooves. A cover plate rotatably supported and a bearing portion rotatably supporting the output shaft are integrally formed of a resin member so that the bearing portion can be moved up and down by the elastic force of the resin member.

Therefore, even if an external force is input to the output shaft, the external force is received by the elastic resin member, and the external force is not transmitted to the double gear. As a result, it is possible to prevent the drive transmission member such as the double gear from being broken by the influence of the external force. Further, it is not necessary to constitute such a relief portion from external force with a separate member such as a spring, and furthermore, since the cover plate and the bearing portion are integrally formed, the number of parts is reduced. .

According to another aspect of the music box apparatus, there is provided a drum having pins planted on an outer periphery thereof, a drive shaft for driving the drum to rotate, and a vibration valve which is played by the pins by the rotation of the drum to produce a sound. A diaphragm with a fixed diaphragm
In a music box device having a drum and a frame rotatably supporting a drive shaft, the drum is limited to one-way rotation by transmitting only rotation in one direction to the drum between the drum and the drive shaft. Equipped with a ratchet mechanism,
The ratchet mechanism includes an internal gear having teeth formed on an inner peripheral surface thereof, and a ratchet wheel having an arm portion extending in a circumferential direction from an outer peripheral edge facing the teeth of the internal gear, When the ratchet wheel rotates in one direction, the claw formed at the tip of the arm engages with the teeth of the internal gear, and the arm contacts the other teeth of the internal gear and receives a force acting on the arm. When the wheel and the internal gear rotate around and the ratchet wheel rotates in the other direction, the arm part bends in the inner circumferential direction so that the pawl portion and the teeth do not engage and the rotation of the ratchet wheel is not transmitted to the internal gear. Has become.

For this reason, the strength of the members constituting the ratchet mechanism is increased as compared with the conventional art. For example, even in the case where the output units are provided in multiple directions and these are driven, the load is not affected by the load. It can be a ratchet mechanism that can withstand. That is, the arm portion extending in the circumferential direction from the outer peripheral edge of the ratchet wheel can reliably engage with the teeth of the internal gear and exerts a force by abutting against other unengaged teeth. As well as transmitting, it is possible to bend easily by rotation in the opposite direction,
The engagement / disengagement operation is reliable and high in strength.

According to another aspect of the present invention, in addition to the above-mentioned music box device, the claw portion is formed by a substantially square protruding piece protruding in the outer peripheral direction at the tip of the arm portion. For this reason, the tip portion of the arm portion of the ratchet wheel has a shape that is more difficult to be damaged and a shape that easily engages with the teeth of the internal gear.

According to another aspect of the present invention, in addition to the above-described music box device, the internal gear of the ratchet mechanism is an end plate fitted into one end of the drum, and the ratchet wheel is formed on a drive shaft. A gear portion that engages with the worm is provided. For this reason, the ratchet mechanism can be compactly stored as an end plate of the drum, and can be a music box device that fits easily as a whole device.

According to another aspect of the present invention, there is provided a music box device comprising: a drum having pins planted on an outer periphery thereof; a vibration plate having a vibration valve which is played by the pins by rotation of the drum to produce a sound; In a music box device having a frame fixed and rotatably supporting a drum, an end plate having a gear for transmitting an external driving force to the drum is fitted into one end of the drum, and a through hole is provided in the end plate to provide a drum. A transmission shaft that rotates integrally with the shaft can be inserted. For this reason, the transmission shaft inserted through the end plate fitted into one end of the drum can be used as an output shaft. For example, when a decorative article imitating an animal or the like is operated, it becomes more visually attractive. It becomes possible to make a music box device that attracts the interest of a person.

According to another aspect of the present invention, in addition to the above-mentioned music box device, the end plate has a gear portion for transmitting rotation of the end plate to an output shaft protruding in a direction perpendicular to the transmission shaft; A hollow shaft outside the drum having a hole that forms a part of a through-hole while holding a gear engaged with the drive shaft; and a transmission shaft that extends in the opposite direction to the hollow shaft with a gear portion interposed therebetween and has a leading end. And a hollow shaft inside the drum having an engagement piece for preventing the detachment of the end plate.The hollow shaft outside the drum is fitted into a hole provided in a wall provided upright on the frame, and the wall serves as an end plate. The rotation is supported.

Thus, the end plate supports the transmission shaft by the two hollow shafts having a large contact area with the transmission shaft penetrating the drum, and the hollow shaft of the end plate is rotatably supported by the wall of the frame. Thus, even if an external force is input to the transmission shaft, the force is not easily transmitted to the end plate, and the end plate is prevented from being broken. In addition, the engagement piece for preventing the detachment prevents the transmission shaft from being detached from the end plate.

According to another invention, in addition to the above-mentioned music box device, both hollow shafts have substantially the same length, and the length of a through hole formed by both hollow shafts and the like is 50 to 1 of the drum length.
00%. For this reason, the transmission shaft is supported on the end plate in a well-balanced manner and is stably supported, and the rotational vibration of the transmission shaft is prevented.

According to another aspect of the present invention, in addition to the above-mentioned music box device, a transmission shaft is inserted into a through hole, the transmission shaft is provided with a concave portion, and the transmission shaft is fitted into the hollow shaft inside the drum. An engagement piece is formed so that the transmission piece does not come off in the axial direction with respect to the end plate by fitting the engagement piece into the recess, and another end plate is provided at the other end of the drum. The end plate is provided with a rotation engaging portion for integrally rotating the transmission shaft, and a rotation locking portion of the transmission shaft is engaged with the rotation engagement portion to integrally rotate the drum and the transmission shaft. Make up.

Therefore, the structure for fixing the transmission shaft to the end plates fitted to both ends of the drum and the transmission shaft becomes stronger, and the drum and the transmission shaft can be reliably rotated integrally. Further, even if an external force is input to the transmission shaft, the end plates are not broken.

According to another invention, in addition to the above-described music box device, the transmission shaft penetrates the drum so as to protrude outward from both end plates fitted to both ends of the drum, and both ends of the transmission shaft are separated from the frame. , And both ends are output sections. For this reason, output units are provided at least in two directions extending outward from both ends of the drum, and when these accessories are used to operate ornaments imitating animals or the like, it becomes more visually attractive. It can be a music box device that attracts human interest.

According to another aspect of the present invention, in addition to the above-mentioned music box device, a ratchet mechanism for transmitting only one-directional rotation to a drum by an external driving force to limit the drum to one-directional rotation is provided with an end having a gear. It is provided outside the plate. For this reason, the ratchet mechanism is formed on the end plate in a compact form, and the apparatus as a whole can have a compact structure.

According to another aspect of the music box device, a drum having a pin implanted on the outer periphery thereof, a diaphragm provided with a vibration valve which is repelled by the pin by rotation of the drum to produce a sound, and a diaphragm fixed thereto And a frame that rotatably supports the drum, a notch is provided at each end of the drum, and end plates provided with projections that fit into the notches are provided at both ends of the drum, respectively. It is fitted in a locked state.

For this reason, the drum and both end plates attached to both ends of the drum can be easily fitted together.
A music box device capable of promptly and reliably assembling the drum and both end plates can be provided.

According to another invention, in addition to the above-mentioned music box device, two notches at one end of the drum are provided symmetrically at 180 degrees, one of which is provided at a connection portion of the drum, and the other is provided at a connection portion of the drum. Notch should be at least 1 at the drum connection
And two projections are provided on the end plate corresponding to the two notches, and one projection is provided on the end plate corresponding to at least one notch. For this reason, when performing the work of fitting the both end plates to the drum, it is possible to prevent such a problem that the right and left sides are wrongly fitted.

According to another aspect of the present invention, in addition to the above-mentioned music box device, a drive shaft for rotating and driving the drum, and a drum provided between the drum and the drive shaft, which rotates only in one direction of the drive shaft, is provided. And a ratchet mechanism for limiting the rotation of the drum to one-way rotation. Therefore, in addition to the above-described operation, the rotation of the drum in the reverse direction can be prevented by the ratchet mechanism.

[0028]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a music box device according to a first embodiment of the present invention will be described with reference to FIGS.

As shown in FIG. 1, the music box device according to the first embodiment of the present invention is supported by a metal frame 13, a diaphragm 19 fixed to the frame 13, and the frame 13 so as to be rotatable. Drum 35 and crank 10,
It is mainly composed of Note that the music box device of the present embodiment is a so-called manual music box device that emits a sound by manually rotating the crank 10, but the drive system is not limited to manual operation. An electric music box device may be provided by disposing a drive shaft that rotates by the driving force of a motor instead of the manual crank 10.

The crank 10 is rotatably disposed on the frame 13 so as to be orthogonal to the drum 35.
It is a drive shaft for rotationally driving. Note that a ratchet mechanism is provided between the crank 10 and the drum 35. This ratchet mechanism transmits only rotation of the crank 10 in one direction to the drum 35,
5 is limited to one-way rotation. Therefore, when the crank 10 is rotated in the opposite direction,
The rotational force of the crank 10 is not transmitted to the drum 35. The configuration of the ratchet mechanism will be described later.

In the middle of the crank 10, the crank 1
A worm 11 for transmitting the rotation of the crank 10 to the drum 35 is formed, and a tappet piece 1 for preventing the crank 10 from coming off is formed in a groove at the end of the crank 10.
2 are installed. The crank 10 is rotatably supported by a locating rack 14 which is a support unit formed integrally with the frame 13. The locating rack 14 is formed of a flat base portion of the frame 13 with both ends and a connecting portion connecting the both ends to form a U-shaped wall. U-shaped grooves 15, 15 are provided for mounting the. A metal cover plate 16 is attached to the upper end of the locating rack 14 so as to cover the U-shaped grooves 15. As a result, the worm 11, a part of the ratchet mechanism, etc.
It will be covered and protected. The U-shaped grooves 15, 15 of the frame 13 support the crank 10 rotatably in cooperation with the cover plate 16.

The tappet piece 12 formed at the end of the crank 10 is formed of a C-shaped metal member. The end of the crank 10 to which the tappet piece 12 is attached can be abutted against an end wall 14a formed outside the locating rack 14, thereby preventing the crank 10 from moving to the peripheral end side. When the cover plate 16 is put on the tappet piece 12 with the crank 10 placed on the U-shaped grooves 15, 15, the end wall 14 is formed.
The shape is such that it does not come off from the U-shaped groove 15 on the a side, and the movement of the crank 10 to the start end side is prevented.
Therefore, the crank 10 is connected to the end wall 14a and the end wall 14a.
The tappet piece 12 is movable in the axial direction only with a width (very small distance) at which the tappet piece 12 can move between itself and the U-shaped groove 15 on the a side.

The worm 11 of the crank 10 constructed as described above is used for a ratchet 20 which forms a part of a ratchet mechanism.
Is engaged with the gear portion 21 formed in the second gear. This gear part 2
The outer peripheral edge of the arm 1 is provided with an elastic arm portion 22 protruding outward and extending in the circumferential direction and capable of bending in the radial direction. Further, a claw portion 23 formed of a substantially square convex piece protruding in the outer peripheral direction is provided at a tip portion of the arm portion 22, and the arm portion 22 is reinforced by the claw portion 23. . The ratchet wheel 20 thus formed is disposed inside one side surface of the double gear 24 as an end plate fitted to one end of the drum 35.

The surface of the double gear 24 opposite to the surface with which the drum 35 is engaged is hollowed out, the internal teeth 25 are formed on the inner peripheral surface of the hollowed-out portion, and the double gear 24 is axially moved to the center position. The internal gear has an extended hollow shaft 33 formed therein. The ratchet wheel 20 is stored at a position where the double gear 24 is penetrated. That is, a hole is formed at the center of the gear portion 21 of the ratchet wheel 20. By inserting this hole into the outer periphery of the hollow shaft 33 of the double gear 24, the ratchet wheel 20 is disposed inside the double gear 24 with the pawl portion 23 fitted into the internal teeth 25. That is, the ratchet wheel 20 is rotatably supported by the hollow shaft 33.

It should be noted that the ratchet wheel 20 constituting the ratchet mechanism is used.
The relationship between the arm 22 and the claw 23 at the tip of the arm 22 and the internal teeth 25 of the double gear 24 is as shown in FIG.

That is, the claw portions 23 formed at the tips of the three arm portions 22 are fitted between the predetermined teeth of the internal teeth 25 and engaged with the internal teeth 25. This claw 23
Is the side 2 in the normal rotation direction (the direction indicated by the arrow D in FIG. 5).
3a is formed substantially vertically, and has a substantially trapezoidal shape in which a side 23b in the reverse rotation direction (the direction of arrow E in FIG. 5) is formed obliquely. And, of the teeth of the internal teeth 25, the remaining teeth where the claw portions 23 are not fitted are provided with the arm portions 2.
The two outer peripheral portions 22a are close to each other.

Therefore, when the ratchet wheel 20 rotates in the direction indicated by the arrow D, the pawl portion 23 engages with a predetermined one of the internal teeth 25, so that the ratchet wheel 20 and the double gear 24 rotate. I have. On the other hand, when the ratchet wheel 20 rotates in the direction of arrow E, the pawl 2
3 is disengaged from between the teeth with which the internal teeth 25 are engaged, and the arm 22 is bent in the inner circumferential direction.
Is disengaged.

With this configuration, when the ratchet wheel 20 rotates in the direction of arrow A (see FIG. 1) by driving the crank 10, the drum 35 having the double gear 24 as an end plate rotates. At this time, the portion of the arm 22 other than the claw portion 23 bends toward the internal teeth 25, and the outer peripheral portion 22 a of the arm 22 comes into contact with the tip of each tooth of the internal teeth 25, and the arm 22 is further bent. Block. Thus, the internal teeth 25 receive the force acting on the arm 22.

On the other hand, the reverse rotation of the crank 10 drives the ratchet wheel 2
When 0 rotates in the other direction (the direction indicated by the arrow B), the arm 22 bends in the inner circumferential direction and the claw 23 goes over the internal teeth 25, so that the rotation of the ratchet wheel 20 is not transmitted to the double gear 24. Has become. As described above, the ratchet mechanism includes the ratchet wheel 2
0 and a double gear 24, and the arm 22 of the ratchet wheel 20
The claw portion 23 formed at the tip and the internal teeth 2 of the double gear 24
Rotation is transmitted or not transmitted due to the engagement or non-engagement of 5 with the rotation.

As described above, the arm 22 is usually
The outer peripheral portion 22a is brought close to each tip of the internal teeth 25,
Only the protruding claw 23 is engaged with one of the internal teeth 25. For this reason, the arm portion 22 is designed not to bend in the outer peripheral direction, but to be able to withstand a strong force at the time of transmitting the rotation, and to be smoothly bent and non-transmitted by bending only in the inner peripheral direction. Have been. With this configuration,
The double gear 24 and the ratchet wheel 20 fitted on the inner periphery of the double gear 24 are made compact,
Rotation transmission can be performed sufficiently even with a compact device. In this embodiment, the arm portion 22 approaches the tip of the internal teeth 25 where the claw portion 23 is not fitted, and the arm portion 22 bends outward and comes into contact with the tip of the internal teeth 25 at the time of rotation driving. , But may be configured to be in contact from the beginning.

On the other hand, a hollow shaft 29 having an inverted knuckle-shaped engaging piece which is equally cut is formed at the center of the surface of the double gear 24 on the side engaged with the drum 35. The hollow shaft 29 is coaxial with the above-described hollow shaft 33 and has a series of spaces. The transmission shaft 31 is inserted and fixed to the double gear 24 so as to pass through both the hollow shafts 29 and 33. Have been. The transmission shaft 31 has a recess 32. The distal end portion of an inverted knuckle-shaped hollow shaft 29 is fitted into the concave portion 32, whereby the transmission shaft 31 is fixed to the double gear 24 so that the double gear 24 does not come off in the thrust direction. You. That is, the distal end portion of the hollow shaft 29 is an engagement piece that fits into the recess 32.

As shown in FIG. 2, a protruding tenon 30 is formed on the surface of the double gear 24 on the side engaged with the drum 35. By fitting a notch 36 formed at one end of the drum 35 into the protruding tenon 30, the double gear 24 and the drum 35 are positioned and fixed in the circumferential direction. Double gear 2 like this
Reference numeral 4 also serves as one end plate of the drum 35. With this configuration, the rotation between the drum 35 and the double gear 24 is prevented, and the assembly is easy. The two protruding tenons 30 are provided symmetrically with respect to 180 degrees, while two notches 36 are also provided so as to correspond to the two protruding tenons 30.

The hollow shafts 29 and 33 have substantially the same length, so that the right and left balance is good in supporting the transmission shaft 31. In addition, the length of the through hole formed by both supports about one third of the axial length of the transmission shaft 31, thereby preventing the rotational fluctuation of the transmission shaft 31. The length of the through hole is about 78% of the length of the drum 35, but is preferably about 50 to 100%. In particular,
Since a concave groove 39 of an end plate 37 to be described later, which serves as a fulcrum of deflection of the transmission shaft 31, is provided near the other end of the transmission shaft 31,
Forming a long through hole in the double gear 24, which is the other end plate disposed at a distance from one end plate 37, is advantageous in terms of preventing backlash and runout of the transmission shaft 31.

The drum 35 is disposed above the rectangular hole 18 formed in the frame 13 and is installed such that a portion below the drum 35 enters the hole 18. A plurality of pins 34 are implanted on the outer peripheral surface of the drum 35. Each pin 34 is for flipping a vibration valve of the vibration plate 19 fixed to the frame 13. That is, one end of the diaphragm 19 is fixed on the frame 13 with the valve tip floating in the air such that the valve tip of the vibration valve is engaged with the pin 34 on the drum 35. Then, by being flipped by the pin 34, the diaphragm 19
It is designed to play sound.

An end plate 37 is fitted on the other end of the drum 35. One protruding tenon 38 serving as a protrusion is also formed on one surface of the end plate 37. This protruding tenon 38
The notch 36 formed at the other end of the drum 35 is fitted to the end plate 37, whereby the end plate 37 and the drum 35 are positioned and fixed. With this configuration, the rotation of the drum 35 and the end plate 37 is prevented, and the assembly is easy.

The notch 36 of the drum 35 is formed so that two notches are symmetrical at both ends at 180 degrees and one end and the other end are at the same position. One of the one end and one of the other end are formed on a mating surface portion of the drum 35 as shown in FIG. One pair of notches 36 formed in this mating surface portion is another pair of notches 36.
Are formed wider than the protruding tenons 30 and 38, and the notches 36 of the mating surface are fitted to the protruding tenons 30 and 38, respectively. Further, the protruding tenon 30 is fitted so as to abut on a stepped portion of the notch 36 on one end side in the direction of arrow A (rotational direction). For this reason, the rotational force of the double gear 24 is transmitted to the drum 35 reliably.

An insertion hole is formed at the center of the end plate 37. This insertion hole is to insert the above-described transmission shaft 31. That is, the transmission shaft 31 penetrates the drum 35 so as to protrude outward from both end plates (the double gear 24 and the end plate 37) fitted to both ends of the drum 35.

The locating rack 14 of the frame 13
Is formed with a hole 14b through which the tip of the hollow shaft 33 of the double gear 24 is inserted. Further, at a position facing the hole 14b of the frame 13 across the drum 35,
A support plate 17 having a recess for receiving an end plate rotation support member 42 through which a portion of the transmission shaft 31 protruding from the end plate 37 is provided. With this configuration, the drum 35 is connected to the frame 1 via the end plate rotation support member 42 that supports the hollow shaft 33 of the double gear 24 fitted to both ends and the end plate 37.
3 rotatably supported.

In this embodiment, the portion of the transmission shaft 31 protruding outward from the end plate 37 is rotatable into a cylindrical end plate rotation support member 42 disposed in contact with the end plate 37. And the cylindrical end plate rotation support member 42 is
It is placed in the recess of the upper support plate 17. The end plate rotation support member 42 supports rotation of the end plate 37 and suppresses movement of the end plate 37 in the axial direction. With this configuration, each pin 34 on the drum 35 is accurately engaged with the corresponding vibration valve, so that an accurate sound is produced.

The two ends of the transmission shaft 31 are connected to the frame 13.
The support plate 17 and the hole 14b are disposed so as to protrude further out of the frame 13. This transmission shaft 31
Projecting portions 41, 4 projecting outward from the frame 13
Reference numeral 1 denotes two output units for operating, for example, ornaments imitating animals or the like. These projections 41,
The output from 41 is synchronized with the sounding of the sound generated by the rotation of the drum 35, and together with another output unit 27 described later, the main factors that enable various functions to be performed are as follows. Has become. For this reason, the value of the music box device of the present embodiment as a tooth and a product is enhanced, and the commercial value of the ornament using the music box device as a driving source can be increased.

In the insertion hole provided at the center position of the above-mentioned end plate 37, there is formed an internal tooth-shaped recess groove 39 serving as a rotation engagement portion. On the other hand, the transmission shaft 31 inserted into the insertion hole is formed with a plurality of projections 40 serving as rotation locking grooves that fit into the recessed grooves 39. Due to this configuration, the end plate 37 and the transmission shaft 31 are fitted in a state where they are prevented from rotating.

As described above, the drum 35 is mounted on the both end plates 2.
4 and 37, and the both end plates 24 and 37 penetrate and fix the transmission shaft 31 in a state where the transmission shaft 31 is stopped in the axial direction and stopped in the circumferential direction, respectively. For this reason, the transmission shaft 31 reliably rotates integrally with the drum 35.

A large bevel gear 26 is formed on the outer periphery of the double gear 24 which is a part of the ratchet mechanism described above. The large bevel gear 26 meshes with a small bevel gear 28 fixed to an output shaft 27 that rotates in a direction orthogonal to the rotation direction of the drum 35. Therefore, the output shaft 27 is rotationally driven in synchronization with the rotation of the drum 35 that rotates integrally with the double gear 24.

The output shaft 27 is rotatably supported by the hole 16a formed in the cover plate 16 described above, and is arranged so as to be perpendicular to the base of the frame 13. When the double gear 24 rotates integrally with the drum 35 and a sound is played, the output shaft 27 together with the two output portions (both ends of the transmission shaft 31)
The output section is output in synchronization with the sound of the sound.

The operation of the above-described music box device according to the first embodiment of the present invention will be described below.

When the crank 10 is manually rotated in a predetermined direction, the ratchet wheel 20 having the gear 21 engaged with the worm 11 rotates in the direction of arrow A. by this,
Claw portion 23 formed at the tip of arm portion 22 on the outer periphery of ratchet wheel 20
The double gear 24 with the internal teeth 25 meshing with
It rotates integrally with the drum 35. As a result, the plurality of pins 34 implanted on the outer periphery of the drum 35
Each vibrating valve of the vibrating plate 19 fixed to 3 is flipped. As a result, the vibration valve 19 emits a sound.

At this time, the transmission shaft 31 inserted and fixed so as to penetrate the drum 35 rotates integrally with the drum 35. Thereby, the protruding portions 41, 41 as output portions disposed at both ends of the transmission shaft 31 rotate. That is,
These projections 41, 41 rotate in synchronism with the sound of the sound generated by the rotation of the drum 35, and output the torque input by the crank 10 in synchronism with the sound.

When the double gear 24 rotates, the small bevel gear 28 meshing with the large bevel gear 26 formed on the outer periphery of the double gear 24 rotates in a direction orthogonal to the rotation direction of the drum 35. As a result, the output shaft 27 fixed to the small bevel gear 28 rotates in the direction of arrow C. That is, the output shaft 27 is also connected to the two projecting portions 4 described above.
Similarly to 1, 41, it rotates in synchronization with the sound of the sound generated by the rotation of the drum 35, and outputs the force input by the rotation of the crank 10.

Next, a music box device according to a second embodiment of the present invention will be described with reference to FIGS.
In the description of the present embodiment, portions having the same configuration as that of the above-described first embodiment will not be described, and when describing members having the same configuration, the same portions will be described. A code shall be attached.

The music box device according to the second embodiment of the present invention comprises a metal frame 13, a diaphragm 19 fixed to the frame 13 and a rotating frame 13, similarly to the above-described first embodiment. It mainly comprises a drum 35 and a crank 10 which are freely supported. Note that this second
Also in the music box device of the embodiment, the driving method is not limited to manual, as in the first embodiment,
Other driving methods may be adopted.

The crank 10 is rotatably disposed on the frame 13 so as to be orthogonal to the drum 35.
It is a drive shaft for rotationally driving. The crank 10 is rotatably supported by a locating rack 14 formed on a frame 13. The locating rack 14 is formed from a flat base portion of the frame 13 and walls formed in a U-shape with both ends and a connecting portion connecting the both ends.
(Not shown) for mounting the. A cover plate 61 made of resin is attached to the upper end of the locating rack 14 so as to cover the groove.

A ratchet mechanism is provided between the crank 10 and the drum 35. The ratchet mechanism only rotates the crank 10 in one direction.
5 to limit the rotation of the drum 35 to one-way rotation. When the crank 10 is rotated in the reverse direction, the torque of the crank 10 is not transmitted to the drum 35. ing. The configuration of the ratchet mechanism is substantially the same as that of the first embodiment, and a detailed description thereof will be omitted. Only different points will be described below.

As in the first embodiment, a double gear 24 as an end plate is fitted on one end of the drum 35, but instead of the large bevel gear 26, a spur gear 62 are formed. The spur gear 62 meshes with a crown gear 64 fixed to an output shaft 63 that rotates in a direction orthogonal to the rotation direction of the drum 35. Therefore, the output shaft 63 is driven to rotate in synchronization with the rotation of the drum 35 that rotates integrally with the double gear 24.

The output shaft 63 is rotatably supported by a bearing 65 fitted into the cover plate 61. That is, the cover plate 61 rotatably supports the output shaft 63 and cooperates with the frame 13 to rotate the crank 1.
0 is also rotatably supported.

As shown in FIGS. 8, 9 and 10, the cover plate 61 has mounting surfaces 71, 71 on the upper end portion of the locating rack 14, and both mounting surfaces 71, 7.
The crank 10 in the locating rack 14 continuing from 1
And an output shaft support 73 which is continuous with the cover 72 and in which the above-described bearing 65 is formed.

The grooves 74 are formed at the boundary between the output shaft support 73 and the cover 62. The grooves 74, 74 are for allowing the output shaft support portion 73 supporting the output shaft 63 to move up and down by elastic force. That is, the output shaft support portion 73 has one end continuous with the cover portion 72 in a state of having elasticity, so that the spur gear 62 and the crown gear 64 can smoothly mesh with each other. Further, the output shaft 63 is connected to the bearing 65.
A washer 66 is attached to the output shaft 63 to position the output shaft 63. Although the transmission shaft 31 is not inserted into the center of the double gear 24 or the end plate 37, the transmission shaft 31 can be inserted.

Each of the above embodiments is an example of a preferred embodiment of the present invention. However, the present invention is not limited to these embodiments, and various modifications can be made without departing from the scope of the present invention. is there. For example, in the second embodiment,
Although the output unit is only the output shaft 63, as in the first embodiment, the transmission shaft 31 is inserted through the drum 35 and both ends of the output shaft are used as the output units, so that the output units can be three in total. Good. In both embodiments, a gear portion is provided on the end plate 37, an output shaft similar to the output shafts 27 and 63 is provided on the end plate 37 side, and a total of four output portions are provided, and the double gear 24 side is not provided. A three-output format having a structure may be used.

The projecting portion 4 on the end plate 37 side of the transmission shaft 31
1, the transmission shaft 31 may be protruded from the end plate 37 side. In the case where the crank 10 is driven electrically instead of the crank 10, a bent portion of the crank 10 is removed, and a knurl for gear attachment is provided on a portion (the portion indicated by W in FIGS. 6 and 7) which is aligned with the worm 11. Alternatively, the gear itself may be attached to the knurled portion. In the case of electric drive, the ratchet mechanism may not be provided because the rotation direction is constant.

In each of the above embodiments, the drum 3
Although the ratchet mechanism is provided inside the double gear 24 also serving as the end plate 5, the ratchet mechanism may be provided at any position between the crank 10 and the drum 35. Further, in the above-described first embodiment,
A substantially rectangular claw 23 is formed at the tip of the arm 22 of the ratchet wheel 20 which is a part of the ratchet mechanism. However, the shape of the claw 23 need not be a substantially square.

In the above embodiments, the output shafts 27 and 63 are supported by the cover plates 16 and 61, respectively. However, the members that support the cover plates 16 and 61 and the output shafts 27 and 63 are provided. May be constituted by a separate member.

In the first embodiment described above, two notches 36, 36 are provided at one end of the drum 35, and two notches 36 are similarly provided at corresponding positions at the other end.
Three of these four notches 36 (double gear 2
There are two notches 36 on the four side, and two notches 36 on the end plate 37 side.
Is used to prevent the rotation of the double gear 24 and the end plate 37. However, all the notches 36 are eliminated, and the drum 35 is fitted into the double gear 24 and the end plate 37 by press-fitting or the like so that the relative rotation becomes impossible. It may be inserted. The notches 36 may be provided one at each end of the drum 35. Such a configuration of the notch 36 and the protruding tenons 30 and 38 and a configuration of the hollow shafts 29 and 33 of the double gear 24 can also be applied to a normal music box device having no drive shaft such as the crank 10.

[0072]

As described above, according to the music box device of the present invention, the transmission shaft is disposed so as to penetrate both end plates of the drum, and both ends of the transmission shaft are output portions, respectively. An output shaft that rotates in a direction orthogonal to the rotation direction of the drum in response to the rotation of the double gear that is one of the end plates is provided, and this output shaft is used as another output unit, and the vibration valve is rotated by rotating the drive shaft in one direction. The three output units are output in synchronism with the operation of playing a sound by playing the sound. For this reason, by using each output unit provided in multiple directions to operate, for example, a decorative product imitating an animal or the like, it is possible to obtain a more visually attractive and more attractive person. It becomes possible to make it a functional music box device. Further, according to the above configuration, two of the three output units can be arranged at close positions, so that one ornament can be operated in a complicated manner by the two output units. Become.

Further, the cover plate for protecting the drive shaft and the bearing portion for rotatably supporting the output shaft are integrally formed of a resin member, thereby not only reducing the number of parts but also reducing external force. Can reduce the influence of the input, and a low-cost and highly safe music box device can be obtained.

A music box device according to another aspect of the present invention is provided with a ratchet mechanism between the drum and the drive shaft for limiting the rotating direction of the drum, and the ratchet mechanism is provided with an internal tooth having teeth formed on an inner peripheral surface. It comprises a gear and a ratchet provided with an arm extending in the circumferential direction from the outer peripheral edge facing the teeth of the internal gear. For this reason, the strength of the members constituting the ratchet mechanism is increased as compared with the conventional case. For example, even in a case where output parts are provided in multiple directions and these are driven, it is possible to withstand the load Becomes As a result, it is possible to provide a music box device capable of creating an operation that is more visually attractive and can attract a person's interest by using the device as a multi-output type.

In the music box device of another invention, an end plate provided with a gear for transmitting an external force to the drum is fitted into one end of the drum, and a transmission shaft for penetrating the drum is inserted into and fixed to the end plate. . For this reason, a transmission shaft that penetrates the drum can be used as an output shaft. For example, when a decorative item imitating an animal or the like is operated, a music box device that is more visually attractive and attracts human interest is provided. As a result, it is possible to increase the commercial value.

According to another aspect of the music box device of the present invention, notches are provided at both ends of a drum having pins planted on the outer periphery thereof, and projections which are fitted into the notches respectively at both end plates fitted at both ends of the drum. Is provided. For this reason, the drum and the both end plates attached to both ends of the drum can be easily fitted, and the assembling work of the drum and the end plate can be performed quickly and reliably. In addition, since the drum and the both end plates do not slip due to the rotation and are securely fitted, the integrally rotating operation is reliably performed.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a music box device according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a fitting portion of a double gear and a drum of the music box device shown in FIG.

FIG. 3 is a partially sectional plan view showing the music box device shown in FIG. 1 in an assembled state.

FIG. 4 is a front view of the music box device of FIG. 3 as viewed from a direction indicated by an arrow IV in FIG. 3;

FIG. 5 is a view showing a relationship between a ratchet and a double gear constituting a ratchet mechanism of the music box device according to the first embodiment of the present invention, wherein the ratchet mechanism is shown by an arrow IV in FIG. 3;
It is the perspective view seen from the direction.

FIG. 6 is a plan view of a music box device according to a second embodiment of the present invention.

7 is a front view of the music box device of FIG. 6 as viewed from a direction indicated by an arrow VII of FIG. 6;

8 is a view showing a cover plate of the music box device of FIG. 6, and is a plan view seen from the same direction as FIG. 6. FIG.

FIG. 9 is a sectional view taken along line IX-IX of FIG. 8;

FIG. 10 is a side view of FIG. 8 as viewed from the direction indicated by the arrow X.

[Explanation of symbols]

Reference Signs List 10 crank (drive shaft) 11 worm 13 frame 14 locating rack (wall portion) 14b hole 15 U-shaped groove 16 cover plate 19 diaphragm 20 ratchet wheel (part of ratchet mechanism) 21 gear part (part of ratchet mechanism) 22 Arm (part of ratchet mechanism) 23 Claw (part of ratchet mechanism) 24 Double gear (one end plate and part of ratchet mechanism = internal gear) 25 Internal teeth (part of ratchet mechanism) 27 Output shaft 29 Hollow shaft 30 Projection tenon (projection) 31 Transmission shaft 32 Recess 33 Hollow shaft 34 Pin 35 Drum 36 Notch 37 End plate 38 Projection tenon (projection) 39 Depression groove (rotation engagement part) 40 Projection (rotation locking) Part) 65 bearing part

Claims (15)

[Claims] 1. A drum having a pin implanted on its outer periphery, a drive shaft for driving the drum to rotate, and a diaphragm having a vibrating valve which is played by the pin by the rotation of the drum to play a sound. And a frame that fixes the vibration plate and rotatably supports the drum and the drive shaft. In the music box device, end plates are fitted to both ends of the drum, and a transmission shaft is inserted through the both end plates. Are arranged, and both ends of the transmission shaft are used as output portions, and a gear is provided on at least one of the end plates which rotates by receiving the rotation of the drive shaft, and meshes with the gear to be orthogonal to the rotation direction of the drum. An output shaft that rotates in the direction in which the drive shaft rotates is provided as another output unit, and the three output units are synchronized with the operation of playing the vibration valve to make a sound by rotating the drive shaft in one direction. Rotated A music box device characterized by having 2. A ratchet mechanism for transmitting only rotation of the drive shaft in one direction to the drum to limit the drum to unidirectional rotation, the ratchet mechanism being provided on one of the end plates. A double gear, and a ratchet wheel supported by a hollow shaft disposed at the center of the double gear, and the ratchet wheel is attached to the side surface of the double gear and the outer periphery is surrounded by the internal teeth of the double gear. The music box device according to claim 1, wherein 3. A cover plate mounted to cover upper end portions of two U-shaped grooves formed in the frame and cooperating with the two U-shaped grooves to rotatably support the drive shaft; 3. The music box device according to claim 1, wherein a bearing portion for rotatably supporting the output shaft is integrally formed of a resin member, and the bearing portion is vertically movable by the elastic force of the resin member. 4. A drum having a pin implanted on its outer periphery, a drive shaft for driving the drum to rotate, and a diaphragm having a vibrating valve that plays a sound when the pin is rotated by rotation of the drum. A music box apparatus having a frame that fixes the diaphragm and rotatably supports the drum and the drive shaft, wherein only one rotation of the drive shaft in one direction is provided between the drum and the drive shaft. To a drum to limit the rotation of the drum to one-way rotation. The ratchet mechanism includes an internal gear having teeth formed on an inner peripheral surface thereof, and an outer peripheral edge facing the teeth of the internal gear. And a ratchet provided with an arm portion extending in the circumferential direction from the hook. When the ratchet rotates in one direction, a pawl formed at the tip of the arm portion engages with the teeth of the internal gear. With the arm contacting the other teeth of the internal gear. When the ratchet wheel and the internal gear rotate in contact with each other and receive the force acting on the arm portion, the arm portion bends in the inner circumferential direction when the ratchet wheel rotates in the other direction, and the pawl portion and the teeth are rotated. , The rotation of the ratchet wheel is not transmitted to the internal gear. 5. The music box device according to claim 4, wherein the claw portion is formed by a substantially quadrangular protruding piece protruding in an outer peripheral direction of a tip end of the arm portion. 6. The internal gear of the ratchet mechanism is an end plate fitted into one end of the drum,
The music box device according to claim 4 or 5, wherein the ratchet wheel is provided with a gear portion that engages with a worm formed on the drive shaft. 7. A drum having a pin implanted on an outer periphery thereof, a diaphragm provided with a vibrating valve which is repelled by the pin by the rotation of the drum to produce a sound, the diaphragm being fixed, and the drum being fixed. In a music box device having a frame rotatably supported, an end plate having a gear for transmitting an external driving force to the drum is fitted into one end of the drum, and a through hole is provided in the end plate to integrally rotate with the drum. A music box device characterized in that a power transmission shaft can be inserted. 8. The end plate holds a gear portion for transmitting rotation of the end plate to an output shaft projecting in a direction perpendicular to the transmission shaft, and a gear engaged with the drive shaft. A hollow shaft outside the drum having a hole that forms a part of the through hole, and an engagement extending in the opposite direction to the hollow shaft with the gear portion interposed therebetween to prevent the transmission shaft from slipping off at the end thereof. A hollow shaft inside the drum having a piece, and the hollow shaft outside the drum is fitted into a hole provided in a wall standing upright on the frame, and the wall supports rotation of the end plate. The music box device according to claim 7, wherein 9. The two hollow shafts have substantially the same length,
9. The music box device according to claim 8, wherein the length of the through hole formed by the two hollow shafts and the like is set to 50 to 100% of the length of the drum. 10. The transmission shaft is inserted into the through hole, a recess is provided in the transmission shaft, and an engagement piece that fits into the recess is formed in a hollow shaft inside the drum,
The engagement piece is fitted into the recess so that the transmission shaft does not come off in the axial direction with respect to the end plate, and another end plate is fitted to the other end of the drum. The end plate is provided with a rotation engaging portion for integrally rotating the transmission shaft, and a rotation locking portion of the transmission shaft is engaged with the rotation engagement portion so that the drum and the transmission shaft can be integrally rotated. The music box device according to claim 7, wherein the music box device is configured. 11. The transmission shaft penetrates the drum so as to protrude outward from both end plates fitted to both ends of the drum, and is disposed so that both ends protrude outward from the frame. The music box device according to claim 10, wherein each of the two ends is an output unit. 12. A ratchet mechanism for transmitting only rotation in one direction due to the driving force from the outside to the drum and limiting the drum to rotation in one direction is provided outside the end plate having the gear. Claims 7, 8, 9, 10
Or the music box device according to 11. 13. A drum having a pin implanted on its outer periphery, a diaphragm provided with a vibration valve which is repelled by the pin by rotation of the drum to produce a sound, the diaphragm being fixed, and the drum being fixed. In a music box device having a rotatably supported frame, notches are provided at both ends of the drum, and end plates provided with projections fitted into these notches are respectively turned around both ends of the drum. A music box device which is fitted in a stopped state. 14. A notch at one end of the drum is 18
Two of them are provided symmetrically at 0 ° and one of them is provided at the connection part of the drum, and the other notch is provided at least at the connection part of the drum, and the end plate on the side corresponding to the two notches is provided. 14. The music box device according to claim 13, wherein two projections are provided on the end plate, and one projection is provided on an end plate on a side corresponding to the at least one notch. 15. A drive shaft for rotating and driving the drum, and a drive shaft provided between the drum and the drive shaft, which transmits only rotation in one direction of the drive shaft to the drum, thereby causing the drum to rotate. The music box device according to claim 13, further comprising: a ratchet mechanism configured to limit rotation in a directional direction;