JPH06309839A - Equipment and method for manufacturing disk cartridge - Google Patents

Abstract

PURPOSE:To remove dust produced by ultrasonic welding, completely practically by exhaustion, by providing a suction port communicating with a surface for setting halves in a base and the suction port also in a lateral wall forming one side of a setting section, out of lateral walls of the base. CONSTITUTION:When a pair of upper and lower halves 42 and 43 constituting a cartridge main body 44 are joined into one body by ultrasonic welding, the halves 42 and 43 are set in a setting section of a base 1 in a state where a disk is held inside them. Thereafter, an ultrasonic vibration giving means 22 is moved downward and the surface opposed to the surface of one of the halves 42 and 43 is made to come into contact with this surface. While exhaustion is conducted for the setting section through suction holes provided in a setting surface and a lateral wall respectively, thereafter, ultrasonic vibration is given by the ultrasonic vibration giving means 22, so as to subject the upper and lower halves 42 and 43 to the ultrasonic welding. Thereby, the halves 42 and 43 are joined into one body and the cartridge main body 44 of a disk cartridge is completed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc cartridge in which discs such as optical discs and magneto-optical discs are rotatably accommodated, and in particular, a pair of upper and lower halves constituting the disc cartridge are joined by ultrasonic welding to be integrated. The present invention relates to a disc cartridge manufacturing apparatus and a disc cartridge manufacturing method.

[0002]

2. Description of the Related Art Conventionally, discs for recording information signals, such as optical discs and magneto-optical discs, on which desired information signals are recorded have been proposed. With this kind of disc,
It has been proposed that the information signal can be recorded at high density and the diameter thereof is extremely small. For example, as a magneto-optical disk, a small-diameter disk having a diameter of 64 mm has been proposed.

A magneto-optical disk having such a small diameter and capable of high-density recording is mounted on a disk rotation driving device and rotated at a high speed. Then, while being rotated at a high speed, a fine recording track provided on a signal recording layer formed on one main surface of the magneto-optical disk is irradiated with a light beam emitted from an optical pickup, and the magnetic head By applying an external magnetic field, a desired information signal is recorded.

The magneto-optical disk capable of high-density recording as described above is housed in a cartridge body to be constituted as a disk cartridge in order to prevent deterioration of recording / reproducing characteristics due to adhesion of dust and scratches, and is formed in the cartridge body. It is attached to the recording / reproducing apparatus or stored as it is.

Further, the magneto-optical disk is housed in a cartridge so as not to damage at least the signal recording area which directly affects the recording / reproducing characteristics.

As described above, the cartridge main body of the cartridge for accommodating the magneto-optical disk in such a manner as to prevent the signal recording area of the magneto-optical disk from being damaged, such as scratches, has a pair of upper and lower halves. Abutting each other, and in the pair of the upper and lower halves that are butted together, in a state where a disc having an information signal recording layer formed on at least one main surface is housed, the pair of upper and lower halves are ultrasonically welded to each other. By joining and integrating them, a disc cartridge in which the above-mentioned magneto-optical disc is rotatably accommodated is manufactured.

When the pair of upper and lower halves are integrated by ultrasonic welding, an ultrasonic welding device is generally used. This ultrasonic welding device is installed in a disc cartridge manufacturing line, and has a base having a mounting surface on which a pair of upper and lower halves, which have been brought into contact with each other from the previous step, are mounted, and an upper part of the base. In addition, an ultrasonic vibration imparting means (generally called a horn. Therefore, hereinafter, this ultrasonic vibration imparting means will be referred to as a horn) is arranged so as to be movable toward and away from the base. Is configured.

When the above-mentioned pair of upper and lower halves are actually ultrasonically welded and integrated, first, the pair of upper and lower halves are housed in the magneto-optical disk and the upper and lower halves are butted against each other. Placed on the mounting surface of the base in this state, then move the horn downward, and its lower end surface (that is, the horn surface) and a pair of the surface mounted on the mounting surface of the base. The half surfaces of the upper and lower halves (half surfaces facing the horn) are brought into contact with each other.

Thereafter, an appropriate pressure is applied to the pair of upper and lower halves by a horn, and at the same time, ultrasonic vibration is applied to ultrasonically weld the pair of upper and lower halves to each other. The disc cartridge is completed by being joined and integrated.

Further, in the conventional ultrasonic welding apparatus,
The base is provided with an intake hole communicating with the mounting surface.
The intake hole communicates with an intake pipe provided inside the base, and the intake pipe is externally connected to a vacuum pump.

At the time of ultrasonic welding using the horn, the vacuum pump is operated to perform ultrasonic welding while exhausting air through the suction holes. This evacuation operation is performed to remove dust generated by ultrasonic welding.

[0012]

However, in the conventional ultrasonic welding apparatus, since the base is simply provided with the intake hole communicating with the mounting surface, dust generated by the ultrasonic welding is completely removed. However, there is a problem in that it cannot be removed, and cleaning is required several times in a short time. In addition, the dust generated by ultrasonic welding adheres to the welding surface, and the welding state of the pair of upper and lower halves is deteriorated.

As described above, in the conventional ultrasonic welding apparatus, the countermeasure against dust is insufficient, and as a result, the welding of the pair of upper and lower halves is incomplete, and the yield of the disk cartridge is lowered.

By the way, a disc cartridge constructed by joining and integrating a pair of upper and lower halves has an opening at the center thereof for allowing the disc table of the disc rotation driving means to enter. When the pair of upper and lower halves are welded by the above-mentioned conventional ultrasonic welding device, the halves on the side where the openings are present are made to face the placing surface of the base and placed on the placing surface. .

At this time, when the opening provided in the half and the intake hole of the base face each other and communicate with each other, the dust generated by ultrasonic welding is exhausted to the outside through the opening and the intake hole. However, there is a disadvantage that the degree of adhesion of the pair of upper and lower halves to the base is lowered, and the pair of upper and lower halves oscillates during ultrasonic welding by the horn. This causes defective welding of the pair of upper and lower halves, which leads to a decrease in the yield of the disk cartridge.

Therefore, it is conceivable to provide the intake holes avoiding the openings, but in order to make the pair of upper and lower halves evenly adhere to the mounting surface of the base, the plurality of intake holes are symmetrical. It is necessary to provide it at the position of 1, and the piping structure of the intake pipe becomes complicated. Further, in this case, since the intake hole is closed by the half, there is another problem that it becomes impossible to remove the dust generated by the ultrasonic welding by exhausting.

The present invention has been made in view of the above problems, and an object thereof is to almost completely exhaust and remove dust generated by ultrasonic welding, and to weld a pair of upper and lower halves. An object of the present invention is to provide a disk cartridge manufacturing apparatus capable of performing at a constant quality level and improving the yield of disk cartridges.

Another object of the present invention is to hold a pair of upper and lower halves with a high degree of close contact with the mounting surface of the base,
In addition, it is another object of the present invention to provide a disk cartridge manufacturing apparatus capable of almost completely exhausting and removing dust generated by ultrasonic welding.

On the other hand, another object of the present invention is to be able to hold the pair of upper and lower halves with a high degree of close contact with the mounting surface of the base, and in addition, to almost completely exhaust and remove dust generated by ultrasonic welding. It is an object of the present invention to provide a method of manufacturing a disc cartridge, which is capable of improving the yield of the disc cartridge.

[0020]

SUMMARY OF THE INVENTION According to the present invention, a pair of upper and lower halves 42 and 43 constituting a cartridge main body 44 are butted against each other, and at least one of the pair of upper and lower halves 42 and 43 which are butted is connected to each other. In a state where the disc 41 having the information signal recording layer formed on its surface is accommodated, the pair of upper and lower halves 42 and 43 are ultrasonically welded to each other so as to be joined and integrated, whereby the disc 41 is rotatably accommodated. In a device for manufacturing a disc cartridge, the base 1 having a mounting surface on which the pair of upper and lower halves 42 and 43 are mounted, and the pair on the mounting surface above the base 1. Forming the upper and lower halves 42 and 43 of the mounting section,
Also, ultrasonic vibration is applied to the pair of upper and lower halves 42 and 43 while pressing a side wall for positioning the pair of upper and lower halves 42 and 43 in the placement section and one half surface of the pair of upper and lower halves 42 and 43. And a suction hole communicating with the above-mentioned mounting surface is provided in the base 1, and at least one side wall of the above-mentioned side wall forming one side of the above-mentioned mounting section is provided on the side wall. An intake hole communicating with the placement compartment is provided.

In this case, among the side walls, the side walls facing each other may be configured to be movable along the sides of the placement section formed by the side walls facing each other. Further, on the mounting surface of the base 1, the base 1 may be provided with an intake hole communicating with the center of the mounting section.

As a side wall for forming a mounting section for the pair of upper and lower halves 42 and 43 on the mounting surface of the base 1 and for positioning the pair of upper and lower halves 42 and 43 in the mounting section described above, for example, 1, a pair of upper and lower halves 42
And 43, and two side walls 4a and 4b functioning as conveyance guides, and a recess 5 formed in these side walls 4a and 4b.
Four arms 6a to 6d which are movable in a and 5b
Can be composed of

Further, as shown in FIG. 1, for example, an intake hole provided in the base 1 and communicating with the mounting surface of the base 1 conveys a pair of upper and lower halves 42 and 43 in the upper surface of the mounting base 1. Two escape grooves 3a and 3 for moving the conveying means for moving
two circular third air intake holes 15 provided on the surface 1a between the two sides b and at a position symmetrical to each other, which is slightly deviated from the section formed by the two side walls 4a and 4b and the four arms 6a to 6d. A circular fourth intake air which is provided on a surface of the transfer base 1 near the first sleeve member 2a in the compartment and has a diameter slightly larger than that of the third intake hole 15. And the holes 16.

In addition, among the side walls, at least one of the side walls forming the side of the placement section is provided with an intake hole communicating with the placement section, as shown in FIG.
A rectangular first intake hole 11 provided along the side walls 4a and 4b on the side surface of the two side walls 4a and 4b on the side of the transfer base 1 that functions as a transfer guide for the upper and lower halves 42 and 43; Recesses 5a formed in 4a and 4b
And 5b can be configured by the second intake holes 12 having an oval shape provided on the surfaces of the four movable arms 6a to 6d forming the above-mentioned section.

Further, as shown in FIG. 11, for example, as shown in FIG. 11, the intake holes communicating with the center of the mounting section on the mounting surface of the base 1 provided on the base 1 have two air intake holes on the upper surface of the transfer base 1. Grooves 3a and 3
It can be constituted by a fourth air intake hole 16 provided on the surface 1a between b and in the central position of the section formed by the two side walls 4a and 4b and the four arms 6a to 6d.

On the other hand, in another invention, the cartridge body 44
A state in which a pair of upper and lower halves 42 and 43 constituting each other are butted against each other, and the disc 41 having an information signal recording layer formed on at least one main surface is housed in the paired butted upper and lower halves 42 and 43. Then, by ultrasonic welding the pair of upper and lower halves 42 and 43,
The disk 4 is formed by joining and integrating with each other.
1. A method of manufacturing a disk cartridge for manufacturing a disk cartridge in which 1 is rotatably housed, in which a pair of upper and lower halves 42 and 43 having an opening 61 at the center of one of the halves is mounted. The pair of upper and lower halves 42 and 43 placed on the placing surface is placed by placing the half on the side where the opening 61 is not provided facing the placing surface of the base 1 having a surface. While aspirating, the pair of upper and lower halves 42 and 43 are joined together by ultrasonic welding to be integrated with each other, thereby producing a disc cartridge in which the disc 41 is rotatably accommodated.

[0027]

In the disk cartridge manufacturing apparatus according to the present invention, when the pair of upper and lower halves 42 and 43 constituting the cartridge body 44 are ultrasonically welded and integrated, first, the pair of upper and lower halves 42 and 43 are With the disc 41 stored inside, the upper and lower halves 42
And 43 are abutted against each other, and are placed in the placement section formed by the side wall in the placement surface of the base 1. At this time, the pair of upper and lower halves 42 and 43 are
The positioning is regulated by the side wall forming the placement section.

Thereafter, the ultrasonic vibration applying means 22 is moved downward to face the one half surface of the pair of upper and lower halves 42 and 43 (hereinafter referred to simply as the vibration applying surface) 2.
2a is brought into contact with the one half surface of the pair of upper and lower halves 42 and 43 positioned in the placement section. After that, while exhausting air to the mounting compartment through the intake hole provided on the mounting surface and the intake hole provided on the side wall, the ultrasonic vibration applying means 22 is suitable for the pair of upper and lower halves 42 and 43. A pair of upper and lower halves 42 and 43 are ultrasonically welded by applying ultrasonic vibration at the same time as applying a pressing force, so that the pair of upper and lower halves 42 and 43 are joined and integrated with each other to form a cartridge body of a disc cartridge. 44 is completed.

At this time, the dust generated by ultrasonic welding is exhausted and removed to the outside through the intake holes provided on the mounting surface as well as the intake holes provided on the side wall. That is, in addition to downward dust collection for the pair of upper and lower halves 42 and 43 placed on the placement surface, lateral dust collection is possible, and the dust collection efficiency during ultrasonic welding is significantly increased. It is possible to improve and almost completely remove dust generated by ultrasonic welding.

As a result, a pair of upper and lower halves 42 and 43
The ultrasonic welding can be performed at a constant quality level, and the yield of disk cartridges can be improved.

In particular, if the side walls facing each other among the side walls forming the above-mentioned mounting section are configured to be movable along the sides of the mounting section formed by the side walls facing each other, When the side wall configured so as to be slidable is moved and retracted from the placement section described above, a transport path for the pair of upper and lower halves 42 and 43 is formed on the placement surface of the base 1. Therefore, the manufacturing apparatus for the disk cartridge according to the present invention can be installed in the manufacturing automation line configured by installing various manufacturing apparatuses along the transport path, and automation of ultrasonic welding can be promoted. Becomes

Further, if the base 1 is provided with an intake hole which communicates with the center of the mounting section, of the pair of upper and lower halves 42 and 43, for example, the opening 61 into which the disk table of the disk rotation driving means is inserted. It is possible to suck the center of the half 42 by the exhaust air through the intake hole by placing the half having the opening upward and placing the half without the opening 61 on the mounting surface so as to face the mounting surface. Becomes As a result, at the time of ultrasonic welding, the pair of upper and lower halves 42 and 43 can be held on the mounting surface with high adhesion, and the ultrasonic welding to the pair of upper and lower halves 42 and 43 can be stably performed.

In the method of manufacturing a disc cartridge according to another invention, a pair of upper and lower halves 42 and 43 having an opening 61 at the center of one of the halves are mounted on the mounting surface of the base 1. Place it. At this time, the opening 6
The half on which 1 is not formed is placed on the placing surface so as to face the placing surface.

Thereafter, while sucking the pair of upper and lower halves 42 and 43 placed above, the pair of upper and lower halves 42 and 43 are joined to each other by ultrasonic welding to be integrated with each other, whereby the disc 41 is formed. A cartridge main body 44 in which is rotatably housed is manufactured.

At this time, the pair of upper and lower halves 42 and 43 mounted on the mounting surface are separated by the pair of upper and lower halves 4.
Due to the suction on 2 and 43, it is held on the mounting surface with high adhesion. As a result, at the time of ultrasonic welding, the pair of upper and lower halves 42 and 43 do not swing on the mounting surface due to ultrasonic vibration, and the ultrasonic welding to the pair of upper and lower halves 42 and 43 can be stably performed. . Further, the dust generated by ultrasonic welding is removed by suction on the pair of upper and lower halves 42 and 43.

[0036]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Ultrasonic welding for producing a cartridge body by ultrasonically welding a pair of upper and lower halves constituting a cartridge body of the disc cartridge in the apparatus for manufacturing a disc cartridge according to the present invention by ultrasonic welding. An embodiment applied to the apparatus (hereinafter, simply referred to as an ultrasonic welding apparatus according to the embodiment) will be described with reference to FIGS. 1 to 11.

The ultrasonic welding apparatus according to this embodiment includes a receiving side A (see FIG. 1) on which a pair of upper and lower halves constituting the cartridge body are placed, and a pair of upper and lower sides placed on the receiving side A. The ultrasonic welding apparatus main body B (see FIG. 3) is configured to apply ultrasonic vibrations to the halves to ultrasonically weld the pair of upper and lower halves to join and integrate them.

First, the structure of the receiving side A on which the pair of upper and lower halves are placed will be described with reference to FIGS. 1 and 2.

As shown in FIG. 1, the receiving side A has a pair of upper and lower halves which are installed along the manufacturing line of the disk cartridge and whose length in the width direction constitutes the cartridge body of the disk cartridge described later. Of the conveyance base 1 having the same length in the front-rear direction, and is installed on both sides of the conveyance base 1 so as to sandwich the conveyance base 1, and functions as a conveyance guide for the pair of upper and lower halves. It comprises two sleeve members (a first sleeve member 2a and a second sleeve member 2b).

The transport base 1 is formed with two grooves 3a and 3b extending in the longitudinal direction at the center thereof. The two grooves 3a and 3b are so-called escape grooves for moving the transport means (not shown) for transporting the untreated pair of upper and lower halves along the transport base 1. .

The upper surfaces of the first and second sleeve members 2a and 2b are formed stepwise, and the portion on the side of the transfer base 1 is formed higher than that of the transfer base 1, so that the above-mentioned transfer is performed. It is in the form of forming a side wall for the base 1. Therefore, in the following description, the portions of the first sleeve member 2a and the second sleeve member 2b on the side of the transport base 1 will be referred to as a first side wall 4a and a second side wall 4b, respectively.

In each of the sleeve members 2a and 2b, the height of the portion (first and second side walls 4a and 4b) on the side of the transfer base 1 is h1, and the height of the other portions is h2, and the transfer base is Assuming that the height of the table 1 is h3, h1>h3> h2 in the illustrated example.
It has a big and small relationship.

The side walls 4a and 4b are respectively provided with two recesses 5a and 5b penetrating in the width direction at positions separated by a predetermined distance. First
The distance between the inner end surfaces of the recesses 5a and 5b on the side wall 4a is substantially equal to the width on the front side of the cartridge body 44 composed of a pair of upper and lower halves indicated by the chain double-dashed line. The width of separation between the inner end surfaces of the recesses 5a and 5b is substantially the same as the width of the rear surface side of the cartridge body 44, which is composed of a pair of upper and lower halves indicated by the two-dot chain line. Further, the bottom surfaces of the recesses 5a and 5b and the top surface of the transport base 1 are substantially flush with each other.

Further, from the sleeve members 2a and 2b to the conveyance base 1, the sectional shape is almost the same as the shape of the recesses 5a and 5b, and the width direction of the corresponding side wall 4a or 4b is passed through the recess 5a or 5b, respectively. Four square columnar arms 6a to 6d which are slidable are disposed.

Among these four arms 6a to 6d, the side wall 4a is passed through the recesses 5a and 5b of the first side wall 4a.
Arms 6a and 6b slidable in the width direction of the
Are integrated with the first connecting member 7a on the outer side of the first sleeve member 2a. Further, the two arms 6c and 6d slidable in the width direction of the side wall 4b through the respective recesses 5a and 5b of the second side wall 4b are located outside the second sleeve member 2b. They are integrated by the connecting member 7b.

That is, the first and second connecting members 7a and 7
In the illustrated example, b are notches each formed in a box shape and having a size such that a part of the arm 6 (any one of the arms 6a to 6d) fits into both sides of the lower end portion thereof. The two arms (6a, 6b) and (6c, 6d) are paired by fixing a part of the arm 6 to each notch, and the corresponding connecting member is provided. 7a and 7b are integrally formed by projecting laterally from both lower ends.

The first and second connecting members 7a and 7b
Are respectively connected to plungers of an air cylinder (not shown), and by operating the air cylinders, the connecting members 7a and 7b are moved laterally outward from the transfer base 1 to the transfer base 1 with respect to each other. The two arms 6a and 6b fixed to the first connecting member 7a and the second connecting member 7b opposed to the two arms 6a and 6b move by interlocking with the contacting / separating direction. The two arms 6c and 6d fixed to each other slide through the corresponding recesses 5a and 5b on the transport base 1 in a direction toward or away from each other.

The sliding range of the arms 6a to 6d is, for example, with reference to the arm tips, the grooves 3a in which the tips of the arms (6a, 6b) and (6c, 6d) are formed in the transport base 1. And from a position located near the outer end face of 3b,
This is a range up to the position where the tips of the arms (6a, 6b) and (6c, 6d) are located on the end faces of the corresponding side walls 4a and 4b on the side of the transport base 1.

The arms (6a, 6) facing each other are
b) and (6c, 6d) are at the positions closest to each other, the side walls 4a and 4b of the first and second sleeve members 2a and 2b and the four above-mentioned One section is formed by the arms 6a to 6d. The planar shape of this section is a pair of upper and lower halves 42 and 43.
This is equivalent to the planar shape of the cartridge body 44 (see FIGS. 7 and 8) configured by joining and integrating (see FIG. 4).

Therefore, when the unprocessed pair of upper and lower halves 42 and 43, which have been put in from the previous step, are conveyed to the portion where the above-mentioned partition is formed on the conveying base 1 through the conveying means (not shown), An air cylinder (not shown) that moves the first and second connecting members 7a and 7b operates to move the connecting members 7a and 7b, and two arms 6a and 6b fixed to the first connecting member 7a are formed. , The two arms 6c and 6 fixed to the second connecting member 7b which faces them.
and d slide in a direction in which they approach each other, and the pair of upper and lower halves 42 and 43 on the transport base 1 are sandwiched by these four arms 6a to 6d.

In this case, since the partition formed by the four arms 6a to 6d and the two side walls 4a and 4b has substantially the same plane shape as the cartridge body 44, the four arms 6a to 6d. Also functions as a member that regulates the position of the pair of upper and lower halves 42 and 43. Further, the pair of upper and lower halves 42 and 43 whose position is regulated in the compartment is equivalent to being placed in the compartment formed on the transport base 1, and in the upper surface of the transport base 1, the compartment The inner surface constitutes a mounting surface for the pair of upper and lower halves 42 and 43.

The upper surfaces of the side walls 4a and 4b and the upper surfaces of the four arms 6a to 6d are flush with each other.
The height from the upper surface of a and 4b to the upper surface of the transport base 1 and the height from each upper surface of the four arms 6a to 6d to the upper surface of the transport base 1 are the same as those of the pair of upper and lower halves 42 and 43. Is set slightly lower than the height of the cartridge body 44.

Further, in the ultrasonic welding apparatus according to this embodiment, the rectangular first suction holes 1 are formed along the side walls 4a and 4b on the side surfaces of the side walls 4a and 4b on the side of the conveyance base 1.
1 is formed, and the second intake hole 12 having an oval shape is further formed on the surface of each of the arms 6a to 6d forming the section. As shown in FIG. 2, the first intake holes 11 formed in the side walls 4a and 4b communicate with the first intake pipes 13 arranged inside the sleeve members 2a and 2b, respectively. , The second intake holes 12 formed in the arms 6a to 6d correspond to the corresponding arms (6a, 6b).
And (6c, 6d) from the inside through the corresponding connecting members 7a and 7b to the second intake pipe 14 that is piped.

In the upper surface of the transport base 1, two grooves 3a are formed.
Two circular third intake holes 15 are formed at symmetrical positions on the surface 1a between the partition 3 and 3b, and at a position slightly deviated from the partition. A circular fourth intake hole 16 having a diameter slightly larger than that of the third intake hole 15 is formed on the inner surface of the inner sleeve member 2a closer to the first sleeve member 2a. The third intake hole 15 and the fourth intake hole 16 are communicated with a third intake pipe 17 and a fourth intake pipe 18, which are respectively piped inside the transport base 1.

The first air intake holes 11 formed on the side walls
The first intake pipe 13 that communicates with the sleeve members 2a and 2b
4 is pulled out from the side opposite to the side of the transport base 1
The second intake pipe 14 communicating with the second intake hole 12 formed in the arms 6a to 6d is led out from the center of the upper surfaces of the corresponding connecting members 7a and 7b.

On the other hand, the third intake pipe 17 communicating with the third intake hole 15 formed in the upper surface 1a between the grooves 3a and 3b of the transfer base 1 is provided with the second sleeve member from the inside of the transfer base 1. 2b communicates with each other and is piped. Further, the second sleeve member 2b is led outward from a surface of the second sleeve member 2b opposite to the side of the transport base 1. A fourth intake pipe 1 communicating with a fourth intake hole 16 formed in a surface of the transfer base 1 near the first sleeve member 2a.
8 is communicated from the inside of the transport base 1 to the first sleeve member 2a and is piped, and is led out from the surface of the first sleeve member 2a opposite to the transport base 1 side.

The first, second, third, and fourth intake pipes (13, 14, 17, and 18) communicate with a common intake pipe (not shown) at the rear of the intake pipes, and a solenoid valve (not shown). Via a vacuum pump (not shown). Alternatively, the following configuration may be adopted. That is, the first, second, third and fourth intake pipes (13, 14, 17)
And 18) are individually connected to a vacuum pump via solenoid valves, or the first, second, third and fourth intake pipes (13, 14, 17 and 18) are divided into groups, respectively. Each group may be connected to a vacuum pump via a solenoid valve.

Next, the ultrasonic welding apparatus main body (hereinafter simply referred to as the apparatus main body) for performing ultrasonic welding on the pair of upper and lower halves 42 and 43 whose positions are regulated in the compartment formed on the transport base 1. (Note) The configuration of B will be described with reference to FIG.

The apparatus main body B has a quadrangular prism-shaped outer casing 21. In the lower portion of the outer casing 21, that is, in the upper surface of the transfer base 1 shown in FIG. 1, two side walls 4a and 4b and four side walls 4a and 4b are provided. Arm 6
A horn 22 as an ultrasonic vibration applying means is provided so as to be able to advance and retreat with respect to the outer casing 21 at a position facing a section formed by a to 6d.

An air cylinder 23 is provided in the outer casing 21.
And a vibration transmission part 24 that is connected to a plunger (not shown) of the air cylinder 23 and is vertically movable by the air cylinder 23. The vibration transmission unit 24 uses an ultrasonic oscillator 25 supplied from the outside.
A converter 26 for converting electric energy (ultrasonic signal) from the machine into mechanical vibration, a booster 27 for amplifying the mechanical vibration of the converter 26, and a cone 2 for transmitting the amplified mechanical vibration from the booster 27 to the horn 22.
It is composed of 8.

The horn 22 has a substantially hexahedral shape, and among these surfaces, the lower end surface (hereinafter referred to as the horn surface) 2
2a is a pair of upper and lower halves 42 and 4 during ultrasonic welding.
3 has a function of pressing one surface of No. 3 and transmitting the amplified mechanical vibration from the booster 27 transmitted through the cone 28 to the pair of upper and lower halves 42 and 43. The supply of the ultrasonic signal from the ultrasonic oscillator 25 to the converter 26 and the drive control of the air cylinder 23 are performed by a control device 29 installed outside.

Next, the structure of the disk cartridge ultrasonically welded by the ultrasonic welding apparatus according to this embodiment will be described with reference to FIGS.

As shown in FIG. 4, this disc cartridge is a disc on which desired information signals are recorded, such as a magneto-optical disc 41, an upper half 42 and a lower half 4.
3 are butt-coupled to each other, and are provided with a cartridge body 44 having a rectangular shape for accommodating the magneto-optical disk 41.

The magneto-optical disk 41 housed in the cartridge body 44 will now be described. As shown in FIG. 5, the magneto-optical disk 41 is formed by molding a transparent synthetic resin such as a polycarbonate resin into a disc shape. An information signal recording layer on which a desired information signal is recorded is adhered to one main surface 45a side of the disk substrate 45. In addition, one main surface 45 on which the information signal recording layer of the disk substrate 45 is adhered and formed
The other main surface 45b side facing a is used as a writing / reading surface of the information signal, and recording / reproducing of the information signal is performed by irradiating the signal recording layer with a light beam from the writing / reading surface side.

Further, as shown in FIG. 6, a center hole 46 is formed in the center of the disc substrate 45 so that a centering member disposed on the disc table side of the disc rotation driving device engages. . Further, a metal plate 47 as a magnetic plate formed in a disc shape so as to close the center hole 46 is disposed in the central portion on the one main surface 45a side of the disc substrate 45. The metal plate 47 is arranged so as to be housed in a metal plate housing recess 48 formed on the one main surface 45a side of the disk substrate 45 so as to surround the center hole 46,
It is attached by being bonded to the disk substrate 45 using a double-sided adhesive tape or an adhesive 49.

Further, the metal plate 4 of the disk substrate 45
On the side of the other main surface 45b opposite to the one main surface 45a on which the 7 is arranged, an annular bulging portion 5 surrounding the center hole 46 is formed.
0 is projected. The bulging portion 50 is formed by increasing the depth of the center hole 46 formed in the thin disk substrate 45 so that the engagement amount of the centering member with respect to the center hole 46 can be increased. The centering operation performed when the magneto-optical disc 41 is mounted on the disc table is surely performed.

The magneto-optical disk 41 has a center hole 4
6 is engaged with the centering member, the metal plate 47 is attracted by the magnet, and the peripheral edge of the bulging portion 50 of the disk substrate 45 is supported by the disk mounting surface of the disk table and clamped and mounted on the disk table. It As shown in FIG. 5, the magneto-optical disc 41 mounted on the disc table in this manner records a signal from a region extending from the vicinity of the inner peripheral side to the outer peripheral edge excluding the inner peripheral side portion supported by the disc table. The area S, which is an inner peripheral area including at least a portion supported by the disk table, is a non-signal recording area N.

The magneto-optical disk 4 constructed as described above.
The outer peripheral wall 5 of the cartridge main body 44 is abutted against each other on the outer peripheries of the upper half 42 and the lower half 43, which have a rectangular shape and constitute the cartridge main body 44 in which 1 is stored.
1. The rising peripheral walls 51a and 51b forming part 1 are formed. In addition, the inner surfaces of the upper half 42 and the lower half 43 which face each other are butted against each other and are placed in the disc storage portion 1
The disk storage portion forming walls 52a and 52b forming part 2 are formed upright. These disk storage part forming walls 52
The a and 52b are formed so as to form an arc inscribed in the rising peripheral walls 51a and 51b.

The lower half 43 has two corners on the front side among the four corners of the inner surface facing the upper half 42.
The first to third cylindrical protrusions 53a to 53c having small diameters are formed on one corner portion and one corner portion on the rear surface side (see points A, B and C), and the upper half 42 has
When the lower half 43 and the upper half 42 are joined to each other at positions facing the tubular projections 53a to 53c, the tubular projections 53a to 53c are fitted to each other and have a relatively large diameter.
~ Third fitting cylinders 54a to 54c are formed (see points a, b and c).

In the lower half 43, the first and second joining projections 5 partially projecting from a part of the rising peripheral wall 51b on the rear surface side (remaining corner portion and intermediate portion on the rear surface side).
5a and 55b are formed respectively (points D and E
(See also), and the third protruding part between the rising peripheral wall 51b on the front side and the disk storage part forming wall 52b.
The joining projection 55c is formed (see point F). The above-mentioned first to third joining projections 55 of the upper half 42.
The portions facing a to 55c are the surrounding rising peripheral walls 5
It is the same surface as the surface of 1a (points d, e and f
reference).

In the lower half 43, the first to fifth butting protrusions 5 having a relatively high height are provided near the corners.
6a to 56e are formed (point G,
H, I, J and K). On the upper half 42, first to fifth butt projections 57a to 57e having a relatively low height are formed at portions of the lower half 43 facing the first to fifth butt projections 56a to 56e, respectively. (See points g, h, i, j and k).

These first to third cylindrical projections 53a to 53c, the first to third joining projections 55a to 55c, and the first to fifth butting projections 5 formed on the lower half 43.
6a to 56e are raised in height, and the peripheral wall 51 is raised.
slightly higher than the height of b (for example 0.2 to 0.23 m
m higher).

Therefore, the upper half 42 and the lower half 43 are
By abutting each other, the first to third cylindrical protrusions 53a to 53c of the lower half 43 come into contact with the bottoms of the first to third fitting cylinders 54a to 54c of the upper half 42, respectively, and at the same time, the lower half 43 is contacted. First to fifth butting protrusions 56a to 5
6e denotes the first to fifth butting protrusions 57a of the upper half 42.
57e is contacted. At this time, the first to third joining projections 55a to 55c of the lower half 43 come into contact with the facing surfaces of the upper half 42.

Then, by ultrasonically welding the upper half 42 and the lower half 43 in the ultrasonic welding apparatus according to the present embodiment, the abutting portions are fusion-bonded to each other, and the upper half 42 and the lower half are welded. Each rising peripheral wall 51a, 5 of 43
The cartridge main body 44 is configured by abutting the 1b and the disk storage portion forming walls 52a and 52b and further integrating them. An actual welding method using the ultrasonic welding apparatus according to this embodiment will be described later.

Then, as described above, the pair of upper and lower halves 4
The cartridge main body 44 formed by butt-joining the Nos. 2 and 43 has the cartridge main body 4 when the disc cartridge is mounted in the recording / reproducing apparatus.
A disc table entry opening 61 into which a disc table of a disc rotation driving device for rotating the magneto-optical disc 41 housed in No. 4 is inserted.

This disc table entry opening 61
8 is specifically shown in FIG. 8 so that the inner peripheral side portion of the magneto-optical disk 41 housed in the cartridge body 44 including the center hole 46 mounted on the disk table can be exposed to the outside. As described above, the lower half 43 is formed with a circular opening substantially in the center thereof.

In the upper and lower surfaces of the cartridge body 44, that is, in the upper and lower halves 42 and 43, at least a part of the signal recording area S of the magneto-optical disk 41 housed therein is exposed to the outside over the inner and outer circumferences. Information signal recording / reproducing openings 62 and 63 are provided. These information signal recording / reproducing openings 62, 63 are provided in FIGS.
As shown in FIG. 5, the rectangular shape is formed at a position approximately in the center of the cartridge body 44 in the left-right direction from the position close to the disc table entry opening 61 to the front surface side of the cartridge body 44.

Further, in order to prevent dust and the like from entering the cartridge body 44 through the information signal recording / reproducing openings 62, 63 and adhering to the housed magneto-optical disk 41. Further, a shutter member 64 for closing the information signal recording / reproducing openings 62, 63 is provided.

The shutter member 64 is formed by punching and bending a thin metal plate to have a U-shaped cross section, and as shown in FIGS. 7 and 8, the cartridge main body 44.
Cartridge body 44 so that they are fitted from the front side of
Mounted on. The shutter member 64 has the information signal recording / reproducing openings 62, 6 shown by the solid lines in FIG.
3, and is attached to the cartridge body 44 so as to be slidable between a position for closing 3 and a position for opening only the information signal recording / reproducing openings 62, 63 shown by a chain double-dashed line in FIG. There is.

Since the shutter member 64 is formed to a size large enough to close the information signal recording / reproducing openings 62 and 63, the disk cartridge in this example has a disk table entry opening. The part 61 is always open.

Further, as shown in FIGS. 7 and 8, a shutter member 64 is provided at one corner portion on the front surface side of the lower half 43 which constitutes the cartridge main body 44, as shown in FIGS. 7 and 8. When it is in the position for closing the position, the information signal recording / reproducing opening 6 is erroneously moved and operated.
In order to prevent the opening of the shutters 2, 63, the lock member 66 is engaged with the engagement piece 65 formed by bending the shutter member 64 to hold the shutter member 64 in the closed position.
(See FIG. 4) is provided.

Further, an erroneous recording preventing member 67 for prohibiting the overlapping recording of the information signal on the magneto-optical disk 41 is arranged at one corner portion on the rear surface side of the lower half 43.

As shown in FIG. 9, the magneto-optical disk 41 is different from the cartridge main body 44 having the above-described structure.
The bulging portion 50 is rotatably accommodated in the disc accommodating portion 12 so as to face the disc table entry opening 61.

By the way, the inner surfaces of the upper and lower halves 42, 43 constituting the cartridge main body 44 are provided on the inner surfaces of FIGS.
As shown in FIG. 7, a disk support protrusion 7 for supporting the magneto-optical disk 41 so as to face the non-signal recording area N of the magneto-optical disk 41 housed in the disk housing section 12.
1, 72 are projected.

That is, the disc support projection 71 formed on the inner surface of the upper half 42 has a non-signal recording area N on the inner peripheral side of the magneto-optical disc 41 accommodated in the disc accommodating portion 12 with its radial movement restricted. The disk supporting protrusion 71 formed in the inner surface of the lower half 43 so as to face the inner surface of the lower half 43 surrounds the peripheral edge of the disk table entrance opening 61, and is located on the inner peripheral side of the magneto-optical disk 41. It is provided so as to face the signal recording area N.

By providing the disk support protrusions 71 and 72 on the inner surface of the cartridge body 44 in this way, the magneto-optical disk 41 does not bring the signal recording area S into contact with the inner surface of the cartridge body 44 but only the non-signal recording area N. Are supported and housed in the cartridge body 44. Even when the magneto-optical disk 41 is housed in the cartridge body 44 in a freely rotatable state, at least the signal recording area S that directly affects the recording / reproducing characteristics is not damaged or damaged. Can be stored in.

Further, this disc cartridge is further provided with a plate receiving portion 73 for receiving the metal plate 47 attached to the magneto-optical disc 41 housed in the cartridge body 44. This plate receiving portion 73
Is provided so as to protrude from the inner surface of the upper half 42 so as to face the metal plate 47 attached to the magneto-optical disc 41 which is accommodated in the disc accommodating portion 12 with its radial movement restricted. It is formed in a ring shape having a diameter slightly smaller than that of the metal plate 47 formed in a disk shape.

As shown in FIG. 9, the plate receiving portion 73 is provided with substantially the same height as or slightly lower than the height of the disk supporting projection 71 provided on the inner surface of the upper half 42. That is, the plate receiving portion 73 is substantially at the same time when the disk magnetic protrusion 71 supports the disk substrate 45 when a load is applied to the magneto-optical disk 41 through the disk table entrance opening 61 in the upward direction. It is formed so as to support 47.

Therefore, the magneto-optical disk 4 as in this example is used.
In the case where the metal plate 47 is attached so as to be substantially flush with the one main surface 45a of the disk substrate 45 as in No. 1, the height of the metal plate 47 is substantially the same as that of the disk support protrusion 71, or the metal plate In consideration of an attachment error of 47, the protrusion is provided on the inner surface of the upper half 42 with a slightly low height.

By providing the plate receiving portion 73 as described above, the metal plate 47 is pressed through the center hole 46 exposed to the disc table entry opening 61, and the magneto-optical disc 41 in FIG. When pushed up in the direction of the arrow Y, the disc substrate 45 is supported by the disc support protrusion 71 and the metal plate 47 is
Is also supported by the plate receiving portion 73 or is in a state of being close to the plate receiving portion 73. Therefore, since a large space is not generated between the metal plate 47 and the inner surface of the upper half 42, it is possible to prevent a large load from being applied only to the metal plate 47, and to prevent the disk substrate 45 from being peeled or dropped. To be done.

Next, in the ultrasonic welding apparatus according to the present embodiment, the upper half 4 constituting the cartridge body 44 is constructed.
An example will be described in which one cartridge main body 44 is manufactured by ultrasonically welding 2 and the lower half 43.

First, when the unprocessed pair of upper and lower halves 42 and 43, which have been introduced from the previous step, are conveyed to a portion where the above-mentioned compartments are formed on the conveying base 1 through the conveying means (not shown), An air cylinder (not shown) that moves the first and second connecting members 7a and 7b operates to move the connecting members 7a and 7b, and two arms 6a and 6b fixed to the first connecting member 7a are formed. , The second opposite it
Two arms 6c and 6d fixed to the connecting member 7b of
And slide in a direction in which they approach each other, and the pair of upper and lower halves 42 and 43 on the transport base 1 are sandwiched by these four arms 6a to 6d. That is, the four arms 6a
˜6d and a pair of upper and lower halves 42 butted against each other in the compartment formed by the two side walls 4a and 4b.
And 43 are placed with the magneto-optical disk 41 accommodated therein.

After that, the solenoid valve connected to the common intake pipe (not shown) is "opened" and the vacuum pump is further operated, whereby the first, second, third and fourth intake pipes ( 13, 14, 17 and 18) and the first, second,
The compartment in which the pair of upper and lower halves 42 and 43 is placed is evacuated through the third and fourth intake holes (11, 12, 15, and 16).

In this state, the air cylinder 2 of the apparatus body B is
3 is operated to move the vibration transmitting portion 24 downward, and the horn 22 applies an appropriate pressure to the pair of upper and lower halves 42 and 43, and at the same time, imparts ultrasonic vibration to the pair of upper and lower halves 42 and 43. .

At this time, the first to third cylindrical protrusions 53a to 53c of the lower half 43 shown by points A to C in FIG.
The first to third fitting cylinders 54a to 54c of the upper half 42, which are indicated by points a to c, are ultrasonically welded in contact with the bottom portions of the upper half 42, and the first to third portions of the lower half 43 are indicated by points G to K.
The fifth butt projections 56a to 56e are the first to fifth butt projections 57a to 57 of the upper half 42 shown by points g to k.
7e is ultrasonically welded in a state of being in contact with 7e, and the first to third joining projections 5 of the lower half 43 shown by points D to F
5a to 55c are ultrasonically welded in a state of being in contact with the facing surfaces of the upper half 42 shown by points d to f.

By ultrasonically welding these abutting portions, the rising peripheral walls 51a and 51b of the pair of upper and lower halves 42 and 43 and the disc housing portion forming walls 52a and 52b are brought into close contact with each other, and a pair of upper and lower halves are formed. Half 4
2 and 43 are joined and integrated with each other to form the cartridge body 44.

At this time, the dust generated by the ultrasonic welding is applied to the first and second side walls 4a and 4b as well as the third and fourth intake holes 15 and 16 provided in the carrier base 1. Exhaust gas is removed to the outside through the air intake hole 11 and the second air intake hole 12 provided in the four arms 6a to 6d. That is, with respect to the pair of upper and lower halves 42 and 43 placed on the section formed by the four arms 6a to 6d and the two side walls 4a and 4b, the third and fourth intake holes 15 and 16 and third and fourth intake pipes 1
In addition to the downward dust collection by 7 and 18, the lateral direction by the first and second intake holes 11 and 12 and the first and second intake pipes 13 and 14 (the front and rear direction and the side surface perpendicular to the direction). Direction), the dust collection efficiency during ultrasonic welding is significantly improved, and the dust generated by ultrasonic welding can be almost completely removed.

In particular, in this embodiment, among the two side walls 4a and 4b and the four arms 6a to 6d forming the above-mentioned section, four of the pair of upper and lower halves 42 and 43 project perpendicularly to the carrying direction. Since the arms 6a to 6d of the four arms 6a to 6d are configured to be slidably movable back and forth with respect to the transport base 1 along the sides of the compartments.
When 6d is slid and retracted from the transportation base 1, a transportation path of a pair of upper and lower halves 42 and 43 is formed on the upper surface of the transportation base 1. Therefore, as in the present embodiment, it is possible to install the ultrasonic welding device in a production automation line configured by installing various manufacturing devices along the transport path, and to promote automation of ultrasonic welding. It will be possible.

Next, a modified example of the ultrasonic welding apparatus according to the first embodiment, particularly the structure of its receiving side A, will be described with reference to FIG. The same reference numerals are given to those corresponding to FIG.

As shown in FIG. 11, the receiving side structure of the ultrasonic welding apparatus according to this modification has almost the same structure as the ultrasonic welding apparatus according to the above-described embodiment shown in FIG.
Of the partition formed in the upper surface of the transport base 1 on the surface 1a between the two grooves 3a and 3b and by the two side walls 4a and 4b and the four arms 6a to 6d. It differs in that it is formed in the central position. The diameter of the fourth intake hole 16 according to this modification is substantially the same as the diameter of the third intake hole 15 formed outside the compartment.

In the ultrasonic welding apparatus according to this modification, a pair of upper and lower halves 42 and 4 are attached to the transport base 1.
3, when the upper half 42 not having the disc table entry opening 61 shown in FIG.
That is, the upper surface of the upper half 42 is opposed to the upper surface of the transport base 1, and the pair of upper and lower halves 42 and 43 are loaded.

With this arrangement, when the pair of upper and lower halves 42 and 43 are located in the compartment, the fourth intake hole 16 faces the center of the upper half 42, which is opposed to the compartment by the vacuum pump. Upper half 4 when evacuating
The center of 2 can be sucked through the fourth intake hole 16, and the pair of upper and lower halves 42 and 43 can be attached to the transport base 1.
The upper halves 42 and 43 can be held on the carrier base 1 by ultrasonic vibration during ultrasonic welding of the pair of upper and lower halves 42 and 43 by the horn 22. No longer moving,
Ultrasonic welding can be stably performed on the pair of upper and lower halves 42 and 43.

Moreover, the dust generated by the ultrasonic welding is not limited to the third intake hole 15 provided in the carrier base 1 and the first intake holes 11 and 4 provided in the two side walls 4a and 4b. The exhaust air is removed to the outside through the second intake holes 12 provided in each of the arms 6a to 6d, and the dust generated by the ultrasonic welding can be almost completely removed.

[0104]

As described above, according to the disk cartridge manufacturing apparatus of the present invention, the pair of upper and lower halves constituting the cartridge main body are abutted against each other, and at least in the abutted pair of the upper and lower halves. In a state where the disc having the information signal recording layer formed on one main surface is accommodated, the pair of upper and lower halves are joined together by ultrasonic welding to be integrated, whereby the disc is rotatably accommodated. In a disk cartridge manufacturing apparatus for manufacturing a disk cartridge, a base having a mounting surface on which the pair of upper and lower halves are mounted,
Side walls for forming the pair of upper and lower half mounting sections on the mounting surface of the base, and for positioning the pair of upper and lower halves in the mounting section, and one half surface of the pair of upper and lower halves. And a pair of upper and lower halves for applying ultrasonic vibration to the ultrasonic vibration adding means, the base is provided with an intake hole communicating with the mounting surface, at least one of the side walls of the above Since the side wall forming one side of the compartment is provided with an intake hole communicating with the above-mentioned placement compartment, dust generated by ultrasonic welding can be almost completely exhausted and removed, and a pair of upper and lower halves can be removed. Welding can be performed at a constant quality level, and the yield of disk cartridges can be improved.

According to another method of manufacturing a disc cartridge of the present invention, a pair of upper and lower halves constituting the cartridge main body are butted against each other, and at least one main surface is provided in the pair of butted upper and lower halves. In a state in which the disc having the information signal recording layer formed thereon is housed, the pair of upper and lower halves are joined together by ultrasonic welding to be integrated, thereby producing a disc cartridge in which the disc is rotatably housed. In the method of manufacturing a disc cartridge according to
The half on the side where the opening is not provided is placed facing each other, while suctioning the pair of upper and lower halves placed on the placing surface, the pair of upper and lower halves is ultrasonically welded to each other. By joining and integrating, the disc cartridge in which the discs are rotatably accommodated is manufactured, so that the pair of upper and lower halves can be held with high adhesion to the mounting surface of the base, In addition, the dust generated by ultrasonic welding can be almost completely exhausted and removed, and the yield of the disk cartridge can be improved.

[Brief description of drawings]

FIG. 1 is an embodiment in which a disc cartridge manufacturing apparatus according to the present invention is applied to an ultrasonic welding device for producing a cartridge main body by ultrasonically welding and joining a pair of upper and lower halves constituting a disc cartridge. FIG. 1 is a perspective view showing a main part of an example (hereinafter, simply referred to as an ultrasonic welding device according to an embodiment), particularly a configuration of a receiving side thereof.

FIG. 2 is a cross-sectional view showing a cross section taken along the line AA in FIG. 1 together with a horn in the ultrasonic welding main body.

FIG. 3 is a configuration diagram showing an ultrasonic welding main body of the ultrasonic welding apparatus according to the present embodiment.

FIG. 4 is an exploded perspective view of a disc cartridge manufactured by the ultrasonic welding device according to the present embodiment.

FIG. 5 is an exploded perspective view showing a magneto-optical disk rotatably housed in the disk cartridge.

FIG. 6 is a cross-sectional view showing a part of the magneto-optical disk rotatably housed in the disk cartridge, with a part thereof omitted.

FIG. 7 is a perspective view showing the disc cartridge as viewed from above.

FIG. 8 is a perspective view showing the disc cartridge as viewed from the back side.

FIG. 9 is a sectional view of the disc cartridge.

FIG. 10 is a cross-sectional view of the disc cartridge with the magneto-optical disc pushed up.

FIG. 11 is a perspective view showing a main part of a modified example of the ultrasonic welding apparatus according to the present embodiment, particularly a configuration of a receiving side thereof.

[Explanation of symbols]

 A Receiving side B Ultrasonic welding device main body 1 Transport bases 2a and 2b First and second sleeve members 3a and 3b Grooves 4a and 4b First and second side walls 5a and 5b Recesses 6a to 6d Arms 7a and 7b No. 1 and 2nd connection member 11 1st intake hole 12 2nd intake hole 13 1st intake pipe 14 2nd intake pipe 15 3rd intake hole 16 4th intake hole 17 3rd intake pipe 18 Fourth intake pipe 21 Outer housing 22 Horn 23 Air cylinder 24 Vibration transmission part 25 Ultrasonic oscillator 26 Converter 27 Booster 28 Cone 29 Control device 42 Upper half 43 Lower half 44 Cartridge body 51a, 51b Standing peripheral wall 52a, 52b Disk storage part Forming walls 53a to 53c First to third cylindrical protrusions 54a to 54c First to third fitting cylinders 55a to 55c First to third contacts Combined protrusions 56a to 56e First to fifth butting protrusions 57a to 57b First to fifth butting protrusions

Claims (4)

[Claims] 1. A state in which a pair of upper and lower halves constituting a cartridge main body are butted against each other, and a disk having an information signal recording layer formed on at least one main surface is housed in the paired butted upper and lower halves. In the disc cartridge manufacturing apparatus for manufacturing the disc cartridge in which the disc is rotatably housed, the pair of upper and lower halves are joined together by ultrasonic welding to be integrated with each other. A base having a mounting surface to be mounted, a pair of upper and lower half mounting sections are formed on the mounting surface of the base, and the pair of upper and lower halves are positioned in the mounting section. An ultrasonic vibration applying hand that applies ultrasonic vibration to the pair of upper and lower halves while pressing the side wall and one half surface of the pair of upper and lower halves. An intake hole communicating with the above placement surface is provided in the base, and at least one of the side walls forming one side of the above placement section has an intake air communicating with the inside of the above placement section. An apparatus for manufacturing a disk cartridge, which is provided with a hole. 2. The side walls facing each other of the side walls are separated at the center and are movable along the sides of the placing section formed by the side walls facing each other. The apparatus for manufacturing a disk cartridge according to claim 1, wherein: 3. The disk cartridge manufacturing apparatus according to claim 1, wherein the base is provided with an intake hole communicating at least in the center of the mounting surface. 4. A state in which a pair of upper and lower halves constituting a cartridge main body are butted against each other, and a disk having an information signal recording layer formed on at least one principal surface is housed in the paired butted upper and lower halves. Then, in the method of manufacturing a disc cartridge for manufacturing the disc cartridge in which the disc is rotatably housed, by joining the pair of upper and lower halves to each other by ultrasonic welding to integrate them, On the mounting surface of the base having a mounting surface on which the pair of upper and lower halves with an opening portion provided in the center is mounted, the half on the side where the opening portion is not provided is placed to face. While suctioning the pair of upper and lower halves mounted on the mounting surface, the pair of upper and lower halves is ultrasonically welded,
A method of manufacturing a disk cartridge, wherein a disk cartridge in which the disks are rotatably housed is manufactured by joining and integrating the disks.