JPS5990204A - Floppy disk driver - Google Patents

Abstract

PURPOSE:To reduce the number of parts, to facilitate attaching operation and to improve productivity by forming pins and bosses for attaching an on/off switch and a shaft on the top surface of an attachment plate in one body. CONSTITUTION:A driving motor and a lower base plate are provided on the bottom surface side of an H-sectioned main body 1, the attachment plate 6 made of iron is provided on the top surface side of the main body under the motor, and an upper base plate 69 is provided thereon. Then, a head mechanism, head loading mechanism, and stepping motor are provided on the top surface side of the main body 1 over the lower base plate so that they adjoin to the upper base plate 69. The space between the attachment plate 6 and main body 1 is used as the storage space of a floppy disk 5. Then plastic pins and bosses for attaching the on/off switch and shaft are provided on the top surface of the attachment plate 6 and plastic insertion guides P1 and P2 for inserting the floppy disk 5 into the storage space are provided on the bottom surface of the attachment plate 6.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a floppy disk drive device suitable for a 5-inch diameter floppy disk.

[Jusong techniques also l;r]

The floppy disk drive system [a, driver 1 boot 1) - turn on IJJ switch, head load mechanism operation a 1: Shirt l - 1 name sensor, cholera) mechanism collet holder, etc. After the parts are fixed to the mounting plate of Iron Plate 1, the mounting plate is fixed to the main body. However, the conventional floppy disk drive system (1'q
In d2, in order to fix the above-mentioned parts to the mounting plate, it is necessary to weld the mounting metal to the mounting plate, or to make additional screw holes (-1 plate), so the machining work is required. The number of furnace parts increases, resulting in extremely poor productivity.

Plus, one M-Kai floppy disk! In the 1iJl device, the 1st insertion guide for inserting the floppy disk into the main body is formed separately from the mounting plate, and the insertion guide is fixed to the mounting plate with screws, etc., resulting in further industrialization. It is something that is making sex worse.

[Purpose of the invention]

The first object of the present invention is to perform processing such as drilling screw holes in the mounting plate, or to perform processing such as drilling screw holes in the mounting plate, or to perform processing such as drilling screw holes in the mounting plate.
It is highly productive (1) that allows you to easily attach each part and floppy disk insertion guide to the mounting board without the need for work such as fixing V attachments to the mounting board. We provide TSBY disc drive grinding equipment.

[Summary of the invention]

The present invention is characterized by a main body having a substantially II-shaped cross section, a drive motor provided on the lower surface of the main body and serving as a drive source for the J-Tubi disc, and +f1jI!1・- provided in III
A mounting plate made of iron plate provided on the top side of the main body,
an upper substrate provided on two sides; a head mechanism provided above the lower substrate and on the second side of the main body; a head provided on the upper surface side of the main body adjacent to the head mechanism; a loading mechanism, a stepping motor provided adjacent to the head mechanism and serving as a driving source for moving the head (1); a stepping motor provided adjacent to the upper substrate and at least the drive It is equipped with an inlet inch for a motor and a shaft that serves as an operating rod for the head load mechanism,
A storage space for a floppy disk is provided between the mounting plate and the upper surface of the main body, and a plastic bottle or boss for attaching at least the on switch and the shaft is provided on the upper surface of the mounting plate. An insertion guide made of plastic for inserting the storage space Nifloppy disk is integrally provided on the lower surface of the mounting plate.

Hereinafter, the implementation of the present invention will be explained based on the drawings.

In the drawing, the main body 1 of the high-density mini-floppy disk device is made of die-cast aluminum.

A hole 1a and a mounting screw hole 1b are provided in the center of the main body 1.
The drive motor 3 connects to the screw 4 through two magnetic shield plates.
Fix it with. - The drive motor 3 serves as a drive source for driving the floppy disk 5.

The drive motor 3 has an inlet 15 (
13a and a hub 3b for chucking the floppy disk 5.

The cross-sectional shape of the main body 1 is I (shaped).Notches IC and ld are provided on the left and right sides of the main body 1. Notches lc.

Between 10 and 10, a receiving plate 6 made of an iron plate with plastic outsert is fixed with screws 33.

A shaft 10 for operating the collet mechanism 7, head load mechanism 8, and important switch 9 of the drive motor 3 is rotatably supported on the mounting plate 6 by bosses 6a, 6b and a bearing plate 11. The bearing plate 11 is fixed with tapping screws 12 and spring washers 13.

A collet cam 14 made of plastics that operates the collet mechanism 7 and a pale cam 15 made of plastics that operates the head load mechanism 8 are attached to the shaft 10 .
Fix it with.

A switch lever 17 is rotatably supported on a shaft 6c provided on the mounting plate 6, and a pin 18 for operating the switch lever 17 is fixed to the shirt 10. switch lever 1
The prevention of removal in the thrust direction of 7 is performed by a bearing plate 11.

An operating lever 19 made of plastic is fixed to one end of the shirt 10 with a screw 22 via a flange. 7. Yaft 10, I'11, 1 operation button
The bin 20 for positioning the rotational direction of the bottle 19 is fixed.

The on/off switch 9 is inserted into the hole 9a provided in the important switch 9.
By inserting the bottle 6d provided on the attached plate 6, the JIz rei τj can be removed. The torsion spring 23 inserted into the shaft 10 has one end connected to a pin 24 fixed to the shaft 10, and the other end 23ail is connected to a pin 6d. ``Fold it into a shape and use it to hold the on/off switch 9.

The plastic front panel 21 has a floppy disk insertion slot 25 in the center, a lamp hole 27 for a lamp 26 in the upper part of the right side W, and 1pH+ in the upper back of the left end.
28 are provided integrally. &J on axis 28: ,
The lock lever 3 is rotatably provided by inserting the torsion screw 29, the lock lever 30, and the washer 31 into J and L and attaching the tapping screw 32.

The lock L/bar 30 has an engagement hole 30a with the T1 shaft 28.

A cam 30b that contacts the floppy disk 5 has an engaging portion 30c that engages with a pin 24 provided on the shaft 10, and upper and lower stopper portions 30d and 30e. Lock lever 3 (Hj:, through 'rr'; N, torsion spring 2
9, it is biased in the special electric direction. If the floppy disk 5 is not inserted to the predetermined position]11, that is, if it is incompletely inserted, the lock lever 30 resists the pressing force of the torsion spring 29 and rotates counterclockwise 1 (in one direction).
When the engaging portion 30c engages with the bin 24, the operating lever 190 is turned clockwise 11! b is seen by l.

When the floppy disk 5 is inserted at a predetermined position t, the lock lever is moved in the pressing direction of the torsion spring 29.
30 is rotated and the engaging portion 30C is removed from the bottle 24, so that it is possible to rotate E+Iυ in the direction (when operating the bar 19).

Collet (J tiri 7 pieces, collet shaft 34,
Collet 35, pressure spring 36, ring cup 37, bearing 38, collar 39, E-ring 40, washer 41
, collet leaf spring 42 and E ring 43-@fJ'+
Q: Yes. The collet shaft 34 has a collet 3
5. After inserting the push spring 36, ring cam 37, bearing 38 and collar 39, f:'j of the collet shaft 34
One bow ring 40 is attached to the part 34a.

After inserting the wire 41 and collet leaf spring 42 above the E-ring 40 into the collet shaft 34, the E-ring 43'i71'T
E people. Collet 35, push spring 36, ring cam 37
, the bearing 38, the collar 39, the washer 41, and the collet leaf spring 42 are rotatably provided on the collet shaft 34. (See FIG. 12) A hollow portion 34C is provided at the end of the collet shaft 34. The collet shaft 34 is rotatably mounted on the collet shaft 45 by inserting the collet shaft 45 into the hollow portion 34C of the plate-shaped collet receiver 44.

The collet receiver 44 is fixed to a boss 6e provided on the receiving plate 6 with screws 46 and washers 47.

A bifurcated shape 42a formed at one end of 42 collet plate springs is sandwiched between a washer 41 and an E-ring 43, and the other end is supported by a pressing spring 48 and a pressing plate 49. The other end of the collet leaf spring 42 is provided with a hole 42c that fits into the shaft 6f provided on the mounting plate 6, and a bent portion 42b formed by bending the circumference of the hole 42G.

The collet plate spring 42 is provided with a bent portion 42e in the center thereof, which the collet cam 14 contacts, and a long hole 42f into which the shaft 6g provided in the take-up plate 6 is inserted. A conical spring 50 and a washer 51 are inserted into the shaft 6g. Collet leaf spring 42
is pushed upward by the spring force of the circular spring 50 using the hole 42C as a fulcrum. floppy disk 5
When the collet plate spring 42 is set at a predetermined position and the operating lever 19 is rotated clockwise, the collet cam 14 lowers the collet plate spring 42. When the collet leaf spring 42 descends, the outer circumference of the collet 35 is pressed against the hub 3b via the floppy disk 5, so that the drive motor 3
As the floppy disk 5 rotates, the floppy disk 5 rotates.

Light emitting element 3 (1 to 11 Drive mode 3 board 3C
Fixed to. A light protection sensor 52 that receives light from the light emitting element 3d through the hole le of the main body 1 is located at a rib 611 provided on the receiving plate 6, and is located on the rib 611 provided on the receiving plate 6. It is fixed using a coupling screw 53 and a washer 54. The light pro-chik 1 sensor 52 includes the notch 5a of the floppy disk 5 and the hole 1ei of the main body 1.
f: When receiving light from light emitting element 3 (1) through
By writing No. 111, νi is set to writable 1 1'
1 Has far-reaching ability. If the margin 5a is blocked by the tape folds, -111 cannot be written to the floppy disk 5.

・The index sensor 55 can be accessed by using the tapping screw 56 and washer 57 on the rib (ij) provided on the mounting plate 6. The light from the light emitting element 3e is transmitted to the hole 1f of the main body 1 and the floppy disk 5 through the hole 5C of the tight media 5b with 11 writings:J
By receiving light at tL-, the Y) writing start position of the floppy disk 5 is detected.

lead wire 58 from sensor 52,
The lead wire 59 from the index sensor 55 and the lead wire 60 from the entry/cutting edge 9 are secured to the three bins 6 provided on the receiving plate 6 at 6t, and then The holding plate 49 is held on the holding plate 6 by screwing it onto the boss 6 of the holding plate 6 using tapping screws 61 and washers 62 so as to cover the stop portion.

The upper substrate 69 has a head terminal 70 and a terminal group 71, and is positioned by guides On and 6o provided on the receiving plate 6 and a guide bin 611, and is positioned by an insulating plate 69a.
It is fixed to the boss 6p provided on the receiving plate 6 via a tapping screw 72 and a notch 73. On the mounting plate 6, there are two second sets of l for fixing the head lead wires 121.
Book bottle 61°.

Establish 6S. On the back side of the mounting plate 6, there is a para) 75.76 m''jt to prevent rotation of the media 5b inside the floppy disk 5.
Fix r.

The lower thread 4jj 77 It, the terminal group 78, the card edge terminal 79 for system connection, and 't+ are fixed to the lower surface of the main body 1 by breaking the source socket 80 and intervening the insulating plate 81 with screws 82 and washers 83.

The head load mechanism 8 includes a solenoid 84, a yoke 85,
Arm 86, shafts 87, 88, screw spring 89, pale 9
0,91. Extension springs 92, 93, collar 94, bad 9
5, washer 97, E-ring 98, 99, 100, 10
1.Adjustment screw 102゜103 and lock nut 104
, 105, and is fixed to the main body 1 with screws 96.

The head structure 1061d writes and reads signals from the computer system to and from the floppy disk 5 via the lower board 77 and the upper board 69, and includes the key ridge 107, the head arm 108, and the lower head 10.
9 and upper head 110.

The carriage 107 has a lower head 109 fixed at the tip of the central portion, and has slide holes 113 and guides 114 on both sides in which guide shafts 111 and 112 are engaged. The carriage 107 has fixed parts 1 g, l h,
1' + I J, shaft presser and screw 133
Fix it by.

A steel belt fixing part 115 is integrally formed on the carriage 107. The steel belt 116 has an alpha winding and is fixed to the steel belt seats 117 and 118 of the steel belt fixing part 115 with screws 119 and washers 120.

The board M121 connected to the lower head 109 is connected to the upper board 6.
Connect to the head terminal 70 of No.9. The head arm 108 includes a protruding piece 122 that engages with the pale 91 and an upper head 11.
0, a portion 108a for attaching to the carriage 107, and this attachment portion 108b and the portion 108af.
It has a leaf spring 108C for integrating the two. The mounting portion 108b of the carriage 107 is fixed to the carriage 107 using a spur support plate 123, screws 126, and washers 127. The torsion spring 124 ij2 is used to obtain an appropriate contact force between the floppy disk 5 and the upper head 110, and is attached to the spring support plate 123 (IJ, in contact with the upper head 110). Line 125!','l
, and fixed using the spring support plate 123.

Fix the C4 head shield plate 128 for noise prevention to the second hole 5 of the soil throat 110.

The stepping motor 129 activates the head mechanism 10G, and is fixed to the main body 1 with screws 131 and 132 via a motor support plate 130. A pulley 134 is fixed to the motor shaft of the stepping motor 129. The pulley 134 has steel/1. , Held 116
After winding, the steel belt 11G is fixed with square washers 135, i, L136 and washer 137.

::￥ Track Senna-138 is carriage 107
It detects the protrusion 1-10Y139 provided integrally with the body 1, and is fixed to the 21ζ body 1 with a screw 140. Heads I
- Flange screw 141 &: J:, screw 0); deceased on main body 1,
This is to regulate the operation of the head 1 crazy "9106."

A terminal 129b is provided at the tip of a motor lead wire 129a of the stepping motor 129. The lead wire 121 connected to the lower/\rad 109 is connected to the upper board 69: Good 1'J'
fr: Connected to the head N'IN terminal 70 through the terminal 121a.

-F board 7 'i not = child rif78 to J evening,
') ψ;j11 wires 142a, ]42b are provided at both ends of the wiring 142 that connects the 4N69 terminal 1171. The wiring 142 is installed as close to the side wall of the main body 1 as possible. Solenoid 840sol/noid lead kQ 8
4a is connected to the terminal group 71 through the 9) k terminal 84b. The lead wires 58, 59, and 60 are put together to form a wiring 143, which is installed along the side wall of the main body 1 and connected to the terminal J'p78 of the lower board 77.

The wiring lines 142 and 143 are set so as not to interfere with the operation of the collet machine (l:ζ7, head load height (198) and head <a t:ri 106).

The lead wire 125 that is connected to the upper head 110 is connected to the main body 1.
It is installed close to the side wall of the building and bent into a roughly U-shape. The lead wire 125 is held down by the wiring 142 to prevent it from rising. The wiring 142 is connected to the wiring guide 144.
Install the head 1 so that it does not come into contact with moving parts such as the head structure 106.

The wiring guide 144 has a substantially U-shaped cross section, and has a small hole 144 provided opposite to the small hole 1k provided on the bottom surface of the main body 1.
a, a U-shaped piece 144b, a protruding piece 144C that locks into a small hole 1t provided on side 1; and.

The U-shaped piece 144b is attached to the main body 1 using a screw 144e and a washer 144f, using small holes 144a and lkf.

The lower head 109 of the head 106 is button-shaped.
form a. In the four parts 107a, a flat protrusion 107b is formed at the medium heat portion, and small protrusions 107c are formed at the corners. The plate 145 has rising walls 145 a on only three sides.
, 145 b, 145 c, and the remainder υ
A small hole 145dl is provided in close proximity to one surface of the hole 145dl, into which the small protrusion 107C of the recess 107a engages. The lower head 109 is arranged so as to contact the upright wall 145b of the plate 145. The portion between the rising walls 145a, 145C of the play top 145 and the lower head 109 is a lower head adhesive portion 146. The lower head 109 is fixed to the plate 145 with adhesive. The plate 145 has a small hole 145d and a small protrusion 107C.
By fixing only the engaging portion with adhesive 145e, it is supported in a cantilever shape. Flat part 10 of carriage 107
7b and the small protrusion 107Cf: the flat part 107 that is formed
Make it almost the same height as d. Upper surface part 1 of lower head 109
Lower head 109 and plate 145' so that 09a and guide 7 shafts 111, 112 are parallel to each other. Make sure that the adhesive does not flow into the back side of the part of the plate 145 that is adhesively fixed to the r-carriage 107, where the lower head 109 can be accessed. Carriage 107 is standing.
Type 2 107e, 107f.

107 gf: Form into a box shape. (See FIGS. 14 to 17 and 19) At the end of the carriage 107, four parts 107 b f are formed for adhesively fixing a claw 108 d provided on a portion 108 b of the head arm 108 . Claw 108d and recess 107
11 is dimensioned to be in a loose state, and after adjusting the position, fix it by injecting adhesive into the recess 1.07h (see Fig. 18). Leaf spring 108C, synthetic Resin head arm 108
Forming - Insert molding is performed on the connecting portion 108a and the mounting portion 108b. The mounting portion 108b connects the outer periphery of the screw 126 to -
It has an elastic support J4 configuration that lowers it. head arm 1
08←11, the claw 108d is supported in a 11-shape shape as a fulcrum. The upper head 1.10 is attached to the position (4) of the head arm 108 that faces the lower head 109. The upper head 110 is fixed to the gimbal spring 147.
Fix it using. Head arm 108, north head 1
Above the part where 10 is located, there is a center pivot 1
08e%x It is formed integrally with the upper head 110. Seni 2
- Pivot) 108e restricts the upward movement of the upper head 110. (See FIGS. 10 and 11) The torsion spring 124 provided on the spring support plate 123 rotates the upper head 1104 at dusk (-hinter pivot) 108
Pressure is applied on e. For this purpose, torsion spring 124
Since the (tx constant) can be set to be low, it is easy to set B1 so that the head arm 10B does not bend downward.

As shown in FIG. 6, a space S for storing the floppy disk 5 is formed between the J plate 6 and the upper surface of the main body 1. On the lower surface of the mounting plate 6, a plastic An insertion guide p+ + p2 is integrally formed.

of the main body 1 that forms a storage space for the floppy disk 5.
On the second page, there are many replies I'11. are integrally formed.

A large number of ribs tJL2 are integrally formed on the lower surface of the main body 1 where the drive motor 3 is attached.

As shown in the outer wall of the main body 1, there are recesses (1p) for mounting 12 stepping motors on the outer wall of the main body, and a large number of ventilation holes I, as shown in FIGS. Ql, IQ2.1 (71y) The ventilation port IQ+ is used to cool the area around the lower part of the head load machine 1.i7j 8.The ventilation port IQ2 is
It is used to cool the area around the lower part of 06.

The ventilation port IQ3 is used to cool the drive motor 3.

Attach various electrical parts and conduct various wiring! The printed circuit board consisting of +Ili L has an upper board 69 and a lower board 7
Divide into 2 parts. The lower substrate 77 is adjacent to the drive motor 3 provided on the bottom side of the main body 1 and is provided on the bottom side of the main body 1 . The upper substrate 69 is fixed on a mounting plate 6 provided above the drive motor 3 and on the upper surface side of the main body 1.

The upper surface of the main body 1 is made lower on the side on which the head mechanism 106 is provided than on the side on which the mounting plate 6 is provided, thereby ensuring a storage space necessary for storing the head mechanism 106 and the head loading mechanism 8.

Bosses 6a, 5b, shaft 6c, bottle 6d, boss 6e.

Shaft 6f, 6gs Guide bin 6 b t 6'z
Lip 6j, Biy6, 6A, Boss 6m, Guide piece 6
n, 6o, boss 6p, bottle 6r, 6s and insertion guide p
++1) 2i, l:, all made of plastic,
It is integrally formed by outsert to the mounting plate 6.

According to the above configuration, the floppy disk 5 is inserted into the storage space S from the floppy disk insertion slot 25. A state in which the opening edge provided at the center of the media 5b of the floppy disk 5 and the outer circumference of the hub 3b of the drive motor 3 almost match (hereinafter, this state is referred to as a fully inserted state, and any state other than the fully inserted state is referred to as an incompletely inserted state) ), even if an attempt is made to rotate the operating lever 19, the shaft 10 will not rotate because the pin 24 engages with the engaging portion 30c of the lock lever 30, as shown in FIG. Therefore, the important switch 9, collet mechanism 7, and head load mechanism 106 do not operate.

When the operating lever 19 does not rotate, the floppy disk 5 is pushed into the main body 1 again. Floppy disk 5 is fully inserted: What happens? As shown in figure A5,
The lock L/bar 30 is rotated by the screw spring 29, and the lock lever 30 is held by the pin 24.
Since the shaft is separated from the shaft, the shaft can freely rotate 100 times. Therefore, when the operating lever 19 is fully rotated, the shaft 1
0 rotates, the important switch 9 is turned on, and the collet leaf spring 42 of the collet mechanism 7 is pushed downward, and the pails 90 and 91 of the head load mechanism 106 are pushed in the F direction.

The collet plate spring 42 of the collet tttp rod ¥7 is the 6th
As shown in the figure, when the collet cam 14 pushes it all the way down, it rotates downward against the spring force t of the spring 50 using the shaft 6f as a fulcrum.The collet leaf spring 42 rotates downward. When the collet 35 moves, the collet 35 descends and this collet 3
A flop disk 5 is sandwiched between the hub 3b of the drive motor 3 and the hub 3b of the drive motor 3.

In this state, when the drive motor 3 is rotated, the floppy disk 5 is rotated. Shirt) Rotate 10 1
, when the collet card 14 is returned to its original position, the collet plates r and I
The spring 42 is rotated upward by the bell spring 50 as a fulcrum of the axis Gf-f. This rotation causes the collet 35 to rise, so that the floppy disk 5 is released from being held between the collet 35 and the hub 3b of the drive motor 3, and the floppy disk 5 can be pulled out from the storage space S. becomes possible.

The head load (R) 8 operates as shown in FIGS. 24 to 27. That is, when the torque operation lever 19 is not operated, the upper head 11
The cap a (d) between the floppy disk 5 and the lower head 109 is thicker than the floppy disk 5, and the solenoid 84 is in the OFF state.

Insert the floppy disk 5 completely into the storage space S,
When the operating lever 19 is fully rotated, the pail 90 is pushed downward by the pail cam 15 and the pail 91 is pushed downward by the lock nut 104 provided on the pail 90, as shown in FIG. 425. Pale 91 is '1'
”::y-J”, the -t drop or head load,
108 also descends -C1 upper head 110 and lower head 109
The gear horn 1] between the cap and the cap is smaller than that of the cap a shown in FIG. At this time, the solenoid 84 is in an off state, and the second head 110 remains close to the medium of the floppy disk 5.

In the state shown in Fig. PjT25, when the solenoid 84 is turned on, the arm 86 pushes the pail 91 downward and the head arm 1 (
) 8 is also lowered, the upper head 110 comes into contact with the upper surface of the medium of the floppy disk 5, and the lower head 109 comes into contact with the lower surface of the medium of the floppy disk 5. It becomes possible to read the information+ld from the floppy disk 5. At this time, a cap cf is provided between the pale 01 and the protrusion 122a provided on the head arm 108.

In the state shown in FIG. 26, when the operating lever 19 is rotated and returned to its original position, the pale cam 15 is also rotated and returned to its original position, so that the pale 90 is pulled up by the tension spring 92.
At this time, the pail 90 engages with the protruding piece 122 and lifts the head arm 108 as shown in FIG. When pulling out the disk 5 from the main body 1, the lower head 110 and the lower head 1
There is no such thing as excessive force being applied to 09.

The head mechanism 106 slides on the guide shirts 111 and 112 by a stepping motor 129. That is, when the stepping motor 129 rotates, the steel belt 116 is wound around the pulley 134.
The gear ridge 107 moves by the amount of winding, and the positions of the upper head 110 and lower head 109 relative to the floppy disk change. Track positions on the floppy disk are determined by forward and reverse rotation of the stepping motor 129.
By moving the carriage 107, the selection can be made freely.

On the second side of the plate 6, there is an important switch 9f: a mounting pin 6d and a shaft] Oi supporting boss 6a.

6b has been outsert in advance, so step 5 is to process the mounting plate 6 to fix the mounting brackets for attaching the important switch 9 and shaft 10 to the mounting plate 6, and the mounting brackets. /,, Not necessary, departmental emphasis, ;<!
It is easy to take f = J work, and productivity is improved.
This enables cost reduction. &j1 in this example
, collet leaf spring 42 with collet view 1i + □17, light proact sensor 52, index sensor 5
5. Productivity is improved by using a bottle, boss, etc. that is integrally formed on the mounting plate 6, instead of using a separate piece (=j tool) to pick up the switch lever 17, etc. is improving.

The insertion guides p+ and 112 fi for the floppy disk 511 are integrally formed in advance on the bottom surface of the mounting plate 6, so just by fixing the mounting plate 6 to the main body,
The storage space S for the floppy disk 5 and the insertion guide mechanism for the floppy disk 5 are formed separately.

Therefore, according to this embodiment, there is no need to perform work such as manufacturing a separate piece for the insertion guide or fixing the separate piece to the main body 1, thereby improving productivity. As shown in FIG. 6, the insertion guide p++p2 has an L-shaped cross-section, but is not limited to this, and the cross-section 1 may have a -'' shape. In this example,
In order to make the body 1 as thin as possible, guides if and V are formed between the upper surface of the body 1 and the insertion guide pl+ pz. Accordingly, the lower surfaces of both ends of the floppy disk slide on the two surfaces of the main body 1.

Insert guide pI, pz fi? By integrating in advance, the insertion kite p1,
pz only needs to be the part necessary to form the guide groove for the floppy disk 5, and can be made as thin as possible, allowing the thickness of the main body 1 to be made even thinner.

〔Effect of the invention〕

According to the misfire Qll, the on/off switch can be installed without any processing on the mounting plate and without fixing it to the mounting plate. The floppy disk can be easily attached to the front plate of the shuffle l, and the floppy disk insertion guide can be easily formed, so the number of parts is small and the initial work is extremely simple. The disk drive is full.

[Brief explanation of the drawing]

(Side 21 shows an embodiment of the present invention (7, Figure 1 shows τL
The minute angle of the JC body part is 'g) +511S no 1, Figure 2 is the minute i9Y of the 5 board part; Figures 1 and 5 are lock levers made by Hji II (β) □Tomorrow, Figure 6 is a sectional view of the collet machine I□1117 portion, and Figure III'￥7 is an exploded perspective view showing the mounting portion 11a of the upper and lower boards. , FIG. 8 shows the head 17
- de
1210, an exploded perspective view of the head mechanism part, Fig. 10 is an enlarged 1-to-1 side view of the head machine (1 stroke (1t), Fig. 11 is an enlarged sectional view of the head machine 1'1%, Fig. 12 and 131 Tabu Ii'i!
Figure 15 is an enlarged view of the lower head mounting part.
Figure 16 is an enlarged φ゛11 perspective view of the lower head removal parts 171
Figure kj is an enlarged perspective view of the lower head, No. 18 is an enlarged perspective view of the helad arm attachment part Pt: lr Blood 1'l'l, p, (>
14) The figure is an enlarged perspective view of the gun part of Royal Ridge.
! 0201 Yuyo left side view of Figure 3, Figure 21 Q3. Nahe 3 right side 1, 221 wa 1 is the
From the figure 27 [Balke, 1: Hesod 11-do machine fil;
Operation explanation 1...(1...Main body, 3...Drive motor, 2...Floppy disk, 6...Mounting plate, 8...Head load machine 11, 9... On/off switch, 10...shaft, S...storage space, 69.
..." 2nd board, 77...lower board, 106...belly button)
"ff1tiL 129...Stepping motor,
pl. pz...Insertion guide, 5a, 6b...Boss, 6 (1
...Hee. 13th prisoner 14th - prisoner 17 1st q of 16/4.5b Ni 1δ Kubit I9 diagram//3

Claims (1)

[Claims] 1. A main body (1) having an approximately 1-inch cross-sectional shape;
1) A drive motor (3) provided on the lower surface side and serving as a drive source for the 70-tip disk (5), and a lower board provided adjacent to the drive motor (3) on the lower surface side of the main body (1). (77), an iron plate (6) provided below the drive motor (3) and on the upper surface side of the main body (1), and an upper board (69) provided above this; A head mechanism 1゛1η (106) provided above the lower substrate (77) and on the upper surface side of the main body (1), and a head mechanism 1゛1η (106) provided on the upper surface side of the main body (1) adjacent to this head mechanism (106). a stepping motor (129) that is provided adjacent to the head mechanism (8) and serves as a drive dlP that moves the head mechanism (8);
and a shaft (ltl) which is provided in FJi contact with the upper plate (69) and serves as an operating rod for at least the important switch (9) of the drive motor (3) and the head load mechanism (8). and a storage space (S) for a floppy disk (5) between the receiving plate (6) and the upper surface side of the main body (I), wherein at least a front i self-on/off switch (9) is provided. ) and a plastic pin (6d) and boss (6a) that can be used to access the shaft 0■. (6b) is provided on the upper surface of the mounting plate (6) and an insertion guide (p+) made of plastic for inserting the floppy disk (5) into the storage space (S).
), (1)2) are provided on the lower surface of the receiving plate (6).
A floppy disk (single drive device) according to claim 1, characterized in that said on/off switch (9) is pressed down by a torsion spring (23) for said floppy disk (single drive device).