JP2001080693A - Hard disk substrate holding device and transport case - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To reliably hold a hard disk substrate at a peripheral portion of a center hole. A plurality of engagement grooves (17) engaging with a peripheral portion of a center hole (2) of a hard disk substrate (1) are formed so as to be substantially parallel to each other in a direction perpendicular to the longitudinal direction, and are substantially parallel to the center hole (2). The center hole 2 in the engagement groove 17.
A plurality of holding members 11 and 12 for holding the plurality of hard disk substrates 1 so that the disk surfaces are parallel to each other when the peripheral edges of the holding members 11 and 12 are engaged, and supporting the holding members 11 and 12 at both ends. And supporting members 13 and 14 for separating the holding members from each other and engaging the engaging groove 17 with the peripheral edge of the center hole 2 with the power point as a force point. The engagement groove 17 is
It is formed so that it gradually becomes shallower from both ends toward the center. The holding members 11 and 12 are provided in the engagement groove 1.
A plurality of disc holding pieces 18 having elasticity for holding down the peripheral edge of the center hole 2 of each of the hard disk substrates 1 engaged with the hard disk board 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hard disk substrate holding device and a transport case for holding a hard disk substrate at the periphery of a center hole when the hard disk substrate is transported.

[0002]

2. Description of the Related Art Conventionally, some disk-shaped recording media such as optical disks, magneto-optical disks, and magnetic disks used for disk cartridges and the like use a hard disk substrate made of synthetic resin such as plastic. Since this hard disk substrate is formed of a synthetic resin, it has a disadvantage that it is easily damaged during transportation and the like.

For example, when transporting this hard disk substrate, if the outer peripheral portion of the hard disk substrate is fastened and fixed to hold a plurality of hard disk substrates on a holding member, the hard disk substrate is deformed in the radial direction during transportation. Sometimes.

In order to prevent deformation of the hard disk substrate, if the hard disk substrate is held by the holding member in such a manner that the outer peripheral portion of the hard disk substrate is held gently to the extent that the hard disk substrate is shaken by vibration, the vibration of the hard disk substrate is caused by the vibration during transportation. The outer peripheral portion may collide with the case storing the hard disk substrate held by the holding member, and the outer peripheral portion of the hard disk substrate may be damaged.

In order to transport a hard disk substrate made of plastic without damaging it, a holding (transporting) device 110 as shown in FIG. 17 is known. The holding device 110 includes a pair of holding members 111 and 112 for holding the plurality of hard disk substrates 101, and supporting members 113 and 114 for supporting both ends of the pair of holding members 111 and 112.

The pair of holding members 111 and 112 are substantially linear members, and are pushed through the center hole 102 of the hard disk substrate 101 in a state of being separated from each other in parallel.
The holding members 111 and 112 are formed with a plurality of engagement grooves 115 and 116 with which the periphery of the center hole 102 of the hard disk substrate 101 is engaged.

The engaging grooves 115 and 116 are formed at the same depth from one end to the other end at a predetermined interval. When the pair of holding members 111 and 112 are close to each other, the center hole 102 of the disk substrate 101 is closed.
Is pushed through.

The holding members 111 and 112 are supported at both ends by support members 113 and 114, as shown in FIG. The holding members 111 and 112 are separated from each other in the direction of arrow X by the support members 113 and 114 so that the periphery of the center hole 102 of the hard disk substrate 101 is engaged with the engagement grooves 115 and 116. Center hole 1
02 is suppressed to the outer peripheral side of the hard disk substrate 101. Thereby, the plurality of hard disk substrates 101
Are the holding members 1 with the disk surfaces parallel to each other.
11 and 112.

The hard disk substrate 101 held by the holding members 111 and 112 is stored in a storage case (not shown).

Since the holding device 110 supports the hard disk substrate 101 at the periphery of the center hole 102, unlike the above-described holding device for holding the outer peripheral edge of the hard disk substrate, the hard disk substrate 101 is deformed in the radial direction. In addition, the hard disk substrate 101 can be transported.

[0011]

However, the above-mentioned holding (transporting) device 110 has the holding members 111 and 112.
17 are moved in the direction of the arrow X in FIG. 17 with both ends as points of force, and as shown in FIG. 18, the center side is warped in an inwardly curved manner. For this reason, the engagement grooves 115, 1
16 is separated from the periphery of the center hole 102 of the hard disk substrate 101, and the holding force of the hard disk substrate 101 held at the center of the holding members 111 and 112 is reduced. Therefore, the hard disk substrate 101 at the center of the holding members 111 and 112 will rattle during transportation, and the adjacent hard disk substrates 10
1 and may be damaged. Therefore, the present invention provides a hard disk substrate holding device that holds a hard disk substrate at the periphery of the center hole, and reliably holds the reversible disk substrate so that the reversible disk substrate does not rattle due to vibration during transportation of the hard disk substrate. It is an object of the present invention to provide a hard disk substrate holding device and a transport case.

[0012]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides an engaging groove which engages with a peripheral portion of a center hole of a hard disk substrate in a direction substantially parallel to a longitudinal direction. The plurality of hard disk substrates are inserted into the center hole in a state substantially parallel to each other, and hold the plurality of hard disk substrates so that the disk surfaces are parallel to each other when the center hole peripheral edge is engaged with the engagement groove. A plurality of holding members,
A holding device for a hard disk substrate, comprising: a pair of support members that support the holding member at both ends, separate the holding members from each other with the both ends as power points, and engage the peripheral edge of the center hole with the engagement groove. The holding member is provided with an elastic disk pressing piece that presses the peripheral edge of the center hole of each hard disk substrate engaged with the engagement groove on the side of the engagement groove, thereby holding the disk by the support member. The holding force for holding the hard disk substrate held at the center of the holding member is moved in the direction in which the holding members are separated from each other, that is, in the direction of increasing the diameter with the both ends of the member as points of force, and warps inward. Even when the size of the hard disk substrate becomes smaller, the hard disk substrate can be maintained by holding the center of the hard disk substrate at the periphery of the center hole with the disk pressing piece. In which it was to be able to prevent the stick.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a hard disk substrate transport case to which a hard disk substrate holding device according to the present invention is applied will be described with reference to the drawings. As shown in FIG. 1, the transport case transports a plastic hard disk substrate 1 serving as a base material of a disk-shaped recording medium such as an optical disk, a magneto-optical disk, and a magnetic disk. The hard disk substrate 1 has a disk rotation operating mechanism engaged at the center and a center hole 2 to which a hub is attached. A signal recording layer such as a magnetic layer and a magneto-optical recording layer is formed on the hard disk substrate 1, and a protective layer for protecting the signal recording layer is formed on the signal recording layer. Further, the center hole 2 of the hard disk substrate 1 is engaged with a centering portion of a disk rotation operation mechanism on the recording and / or reproduction device side for rotating the disk-shaped recording medium, and a hub is attached.

As shown in FIGS. 1 and 2, a transport case 10 as a transport device used when transporting the hard disk substrate 1 serving as a base material of the disk-shaped recording medium as described above is provided. And support members 13 and 14 for supporting both ends of the holding members 11 and 12 in a state where they are separated from each other.
And a case body 15 provided with support members 13 and 14, and a lid 16 to cover the case body 15.

As shown in FIG. 2, the holding members 11 and 12 are substantially linear rod-shaped members.
It is formed of a synthetic resin having a rigidity such as a BS which has little bending deformation.

The holding members 11 and 12 have a plurality of engaging grooves 17 on the outer side with which the peripheral edge of the center hole 2 of the hard disk substrate 1 is engaged. The engagement groove 17 is formed in a direction orthogonal to the longitudinal direction of the holding members 11 and 12, and is formed so as to be substantially parallel to each other in the longitudinal direction at an interval such that adjacent hard disk substrates 1 do not contact each other. I have.

As shown in FIG. 3, the holding members 11, 1
2 is provided with a disc pressing piece 18 having elasticity to press the peripheral edge of the center hole 2 of the hard disk substrate 1 engaged with the engaging groove 17 at an extended position of the engaging groove 17. As shown in FIG. 4, a plurality of the disc pressing pieces 18 are formed at positions corresponding to the plurality of engaging grooves 17 # 17, respectively. It is formed more flexibly than the part.

The plurality of disc holding pieces 18 押 18
Are holding members 11 and 1 whose upper and lower ends face the above-mentioned engagement groove 17.
The upper and lower surfaces 2 are formed in a fin shape integrally with the holding members 11 and 12.

The plurality of disc holding pieces 18 # 18
Are formed in a straight line at a position separated by a predetermined distance D from the inner surfaces of the holding members 11 and 12 (the surface opposite to the side on which the engagement groove 17 is provided).

The plurality of disc holding pieces 18 # 18
Has a concave portion 19 at the tip to which the periphery of the center hole of the hard disk substrate 1 fits.

The plurality of disc holding pieces 18 # 18
Has a length L gradually increasing from both ends toward the center.

The depth of the engagement grooves 17 # 17 is gradually reduced from both ends toward the center. The engagement grooves 17 # 17 have a depth of 3 mm or more and a V-shaped cross section.

As shown in FIG. 2, the support members 13,
14 are holding member support portions 22 on both sides of the central protrusion 21,
The case body 15 is formed in a convex shape, and is disposed in a state of facing both ends of the case main body 15 in the longitudinal direction of the disk accommodating portion.

The height H ₁ of the projections 21 of the support members 13 and 14 is substantially the same as the height H ₂ of the holding members 11 and 12. Further, the protrusions 2 of the support members 13 and 14 are provided.
The width W ₁ of the 1, the width W _2, W ₃ a value obtained by adding from the inner surface to the bottom of the engaging groove 17 of the support member 11,12 (W ₁ + W ₂ +
W ₃ ) is set to be larger than the diameter of the center hole 2 of the hard disk substrate 1.

Next, the operation of the transport case for the hard disk substrate will be described. First, as shown in FIG.
A pair of holding members 1 are provided in the center hole 2 of the hard disk substrate 1.
1 and 12 are inserted. Next, as shown in FIG. 6, the distance between the pair of holding members 11 and 12 is increased so that the hard disk substrate 1 is inserted into engagement grooves 17 and 17 provided on the outer peripheral surfaces of the holding members 11 and 12 respectively. The periphery of the center hole is fitted. Next, as shown in FIG. 7, the protrusions 21 of the support members 13 and 14 are provided between the pair of holding members 11 and 12.
And the pair of holding members 11 and 12
Of the holding member support portions 22, 2 on both sides of the protrusion 21.
3, the bottom surface of the engaging groove 17 of the pair of holding members 11 and 12 contacts the peripheral edge of the center hole of the hard disk substrate 1 and the disk pressing piece 18.
Also contacts the periphery of the center hole on the side of the engagement groove 17, and the hard disk substrate 1 is moved from the inner periphery of the center hole 2 by both the engagement groove 17 and the disc holding piece 18. It is in a state of being held.

As described above, the pair of holding members 11,
12 between the ends of the disk housing 1 of the case body 15
When the protrusions 21 of the support members 13 and 14 provided at both ends in the length direction of the 5a are press-fitted, the pair of holding members 11 and 12 are pressed.
8, the pair of holding members 11 and 12 are bent inward as shown in FIG. 8, but as described above, the engagement grooves 17 # 17 are formed at both ends. From the center to the center, the bottom surfaces of the engagement grooves 17 on both ends as well as the center of the engagement grooves 17 are in contact with the periphery of the center hole of the hard disk substrate 1. Will be kept. Also, the disc holding piece 1
8 ‥ 18 is also formed so as to become gradually longer from both ends toward the center, so that even if the pair of holding members 11 and 12 bend inward as described above,
All disc holding pieces 18mm regardless of both ends and center
18 is pressed against the periphery of the center hole of the hard disk substrate 1 with a substantially uniform force.

In particular, in the embodiment, as shown in FIG. 9, a concave portion 19 is provided at the tip of the disc holding pieces 18 # 18, and the peripheral portion of the center hole of the hard disk substrate 1 is fitted into the concave portion 19. Therefore, it is possible to prevent the hard disk substrate 1 from falling down as indicated by a two-dot chain line and prevent the hard disk substrates from interfering with each other.

Further, as shown in FIG.
Since the depth d of the engaging groove 17 of the hard disk substrate 1 is set to 3 mm or more, even if the holding members 11 and 12 are slightly bent inward, the center hole of the hard disk substrate 1 is formed through the engaging groove 17 # 17. It can be prevented from falling off from the peripheral portion.

The depth of the engaging grooves 17 溝 17 is 1.
Drop tests were performed on the test pieces having a size of 5 to 2.0 mm and the test pieces having a size of 3.0 to 4.0 mm. The test results shown in Table 1 were obtained, and the effect was proved.

[0030]

[Table 1]

The hard disk substrate 1 has a center hole 2
A non-recording area (clamp area) 3 is formed at about 3 mm from, and a recording area 4 is formed on the outer peripheral side.
Therefore, as shown in FIG. 11, when the cross-sectional shape of the engagement groove 17 is U-shaped and the depth d is 3 mm or more, when the hard disk substrate 1 is inclined, the recording area 4 is 10 may be damaged by contact with the edge portion 17a at the upper end of the hard disk substrate 1 as shown in FIG. 10, even if the hard disk substrate 1 is inclined by forming the engagement groove 17 in a V-shape. It is possible to prevent the recording area 4 from contacting the upper edge portion 17a of the engagement groove 17 and the like. The opening angle θ of the V-shaped engagement groove 17 is preferably about 20 °.

As described above, the transport case 10 is constructed by attaching the lid 16 to the case body 15 accommodating the plurality of hard disk substrates 1 # 1, as shown in FIG.

The case body 15 and the lid 16 are injection-molded from plastic. Lid 1 on case body 15
When the cover 16 is put on, as shown in FIG.
The lid 16 is detachably attached to the case body 15 by engaging a case engaging portion 16a provided on the outer periphery of the lower end of the case. The lid 16 is provided with holding member pressing portions 16a for pressing the upper surfaces of both ends of the pair of holding members 11 and 12 attached to the case body 15. The case body 15 and the lid 16 are kept in a non-contact state with the outer peripheral portion of the accommodated hard disk substrate 1-1.

The case body 15 accommodating the plurality of hard disk substrates 1 # 1 and covered with the lid 16 is accommodated in an airtight bag 31 as shown in FIG.
After an inert gas such as nitrogen gas is injected into the container 1, the container is packed in a container 32 for a sub-carton of a cardboard. The container 32 for the sub-carton is a container 3 for a master carton.
They are packed into 3 and transported.

FIG. 15 shows a modification of the holding members 11 and 12. In this modification, all the lengths L of the disc holding pieces 18 ‥ 18 are formed to be the same length, and both the disc holding pieces on both end sides of the holding members 11 and 12 and the disc holding pieces on the center side are substantially the same. This shows a case where the hard disk substrate 1 is brought into contact with the peripheral edge of the center hole with a uniform pressure. In this modification, the distance D from the inner surfaces of the holding members 11 and 12 to the disc holding piece 18 is set to gradually increase from both ends to the center, and is shown in FIG. As shown in FIG. 16B, the disk pressing pieces 18 at both ends and the disk pressing pieces 18 at the center side are also substantially at the same pressure on the periphery of the center hole of the hard disk substrate 1 as shown in FIG. It comes into contact. As shown in this modification, the holding member 1
The distance D from the inner surfaces of the discs 1 and 12 to the disc holding piece 18
The holding members 11 and 12 are formed such that the size of the holding members 11 and 12 is gradually increased from both sides to the center.
The holding members 11 and 12 in FIG. 4 have a simpler mold shape so that the length of the disc holding piece 18 is gradually increased from both ends toward the center without changing the distance D. This is advantageous in terms of cost. The hard disk substrate used in the present invention is not limited to a plastic substrate, and may be made of glass as long as it is a rigid disk substrate.

[0036]

The apparatus for holding a hard disk substrate of the present invention has the following effects.

(1) The holding device according to claim 1 is characterized in that:
The inner peripheral side of the hard disk substrate can be reliably held by both of the disk pressing pieces.

(2) In the holding device of the second aspect, the disk pressing pieces are divided for each engagement groove, so that it is easy to give the disk pressing pieces an appropriate elasticity.

(3) The holding device according to claim 3 can prevent the hard disk substrate from being tilted by the concave portion provided at the tip of the disk pressing piece.

(4) In the holding device according to the fourth aspect, the hard disk substrate can be pressed by the disk pressing pieces also on both sides of both ends of the engagement groove.

(5) In the holding device according to the fifth aspect, since all the disc pressing pieces are provided at the same distance from the inner surface of the holding member, it is easy to manufacture a mold for plastic-molding the holding member. Become.

(6) In the holding device of the sixth aspect, since the length of the disc holding piece is formed so as to gradually increase from both ends toward the center, even if the holding member is bent, all the disc holding pieces are held. The piece can be pressed against the periphery of the center hole of the hard disk substrate with substantially the same pressure.

(7) The holding member according to claim 7 can press the peripheral edge of the center hole of the hard disk substrate with substantially the same pressure at both ends and at the center of the engaging groove as well as the disc pressing piece. .

(8) In the holding member according to claim 8, since the depth of the engaging groove is set to 3 mm or more, even if the holding member is bent,
It is possible to prevent the periphery of the center hole of the hard disk substrate from coming out of the engagement groove.

(9) In the holding device of the ninth aspect, the engaging groove is formed
Since it is formed in the shape of a letter, even when the hard disk substrate is inclined, it is possible to prevent the hard disk substrate from contacting the upper end portion of the engagement groove and protect the recording area of the hard disk substrate.

(10) In the transport case of the tenth aspect, the accommodated hard disk substrate can be protected from the inner peripheral side and the outer peripheral side.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a transport case of the present invention.

FIG. 2 is an enlarged perspective view of a main part.

FIG. 3 is a front view of a main part.

4A is a front view of the holding member, FIG. 4B is a side view of the holding member, and FIG. 4C is a plan view of the holding member.

FIG. 5 is an explanatory view showing a step of holding the hard disk substrate.

FIG. 6 is an explanatory view showing a step of holding the hard disk substrate.

FIG. 7 is an explanatory view showing a step of holding the hard disk substrate.

FIG. 8 is a plan view showing a state where a hard disk substrate is sandwiched.

FIG. 9 is an enlarged view of a main part in a state where a hard disk substrate is sandwiched.

FIG. 10A is a cross-sectional view showing a state in which a peripheral edge portion of a center hole of a hard disk substrate is engaged with a V-shaped engagement groove,
(B) is a sectional view of a state where the hard disk substrate is inclined.

FIG. 11A is a cross-sectional view showing a state in which a peripheral edge of a center hole of a hard disk substrate is engaged with a U-shaped engagement groove,
(B) is a sectional view of a state where the hard disk substrate is inclined.

FIG. 12 is a perspective view showing a state in which the transport case is covered.

FIG. 13 is a cross-sectional view of a main part in a state where a lid is placed on the transport case.

FIG. 14 is a perspective view showing a state where the transport case is packaged.

FIG. 15A is a front view of a modified example of the holding member, and FIG.
FIG. 9 is a side view of a modified example of the holding member, and FIG.

16A is a cross-sectional view showing a use state of an end disc holding piece, and FIG. 16B is a cross-sectional view showing a use state of a center disc holding piece.

FIG. 17 is a perspective view showing a conventional example.

FIG. 18 is a perspective view showing a use state of a conventional example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Hard disk board, 2 ... Center hole, 10 ... Transport case, 11, 12 ... Holding member, 13, 14 ... Support member,
15: Case body, 16: Lid, 17: Engagement groove, 18: Disc holding piece, 19: Recess.

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3E036 AA04 CA01 CA04 FA01 3E068 AA08 AB01 AB04 AC06 BB06 BB12 BB17 CC03 CE03 DD18 DD20 DE14 EE01 3E096 AA06 BA15 BB04 CA03 CA05 CB01 DA01 DA05 DA25 DB04 DB08 EA02 FA10 FA03

Claims (10)

[Claims] 1. A plurality of engagement grooves for engaging with a peripheral portion of a center hole of a hard disk substrate are formed so as to be substantially parallel to each other in a direction substantially orthogonal to the longitudinal direction, and inserted into the center hole in a state substantially parallel to each other. And a plurality of holding members for holding the plurality of hard disk substrates so that the disk surfaces are parallel to each other when the center hole peripheral edge portion is engaged with the engagement groove, and the holding member is supported at both ends. The holding member is separated from each other with the both ends as points of force, and a pair of support members are provided when the peripheral edge of the center hole is engaged with the engagement groove. A holding member having elasticity for holding a peripheral edge of a center hole of each of the hard disk substrates engaged with the engagement groove on a side of the hard disk substrate. 2. The hard disk substrate holding device according to claim 1, wherein a plurality of said disk pressing pieces are formed by being divided for each of said plurality of engaging grooves. 3. The hard disk substrate holding device according to claim 2, wherein the plurality of disk pressing pieces have a concave portion at a tip thereof, into which a peripheral portion of a center hole of the hard disk substrate fits. 4. The hard disk substrate holding device according to claim 2, wherein the plurality of disk pressing pieces are arranged on both side surfaces of a holding member facing both ends of the engaging groove. 5. The hard disk substrate holding device according to claim 2, wherein the plurality of disk pressing pieces are provided at the same distance from the inner surface of the holding member. 6. The hard disk substrate holding device according to claim 2, wherein the plurality of disk pressing pieces are gradually longer from both ends toward the center. 7. The holding device for a hard disk substrate according to claim 6, wherein said engaging groove is gradually shallower from both ends toward the center. 8. The hard disk substrate holding device according to claim 1, wherein said engaging groove has a depth of 3 mm or more. 9. The holding device according to claim 1, wherein the engaging groove has a V-shaped cross section. 10. A plurality of engaging grooves for engaging with a peripheral portion of a center hole of a hard disk substrate are formed so as to be substantially parallel to each other in a direction substantially perpendicular to the longitudinal direction, and inserted into the center hole in a state substantially parallel to each other. And a plurality of holding members for holding the plurality of hard disk substrates so that the disk surfaces are parallel to each other when the center hole peripheral edge portion is engaged with the engagement groove, and the holding member is supported at both ends. When the holding members are separated from each other with the both ends as points of force, and the peripheral edge of the center hole is engaged with the engagement groove, a pair of support members and the support member are provided on both side portions of the disk accommodating portion. And a lid attached to the case body, wherein the holding member presses a peripheral edge of a center hole of each of the hard disk substrates engaged with the engagement groove on a side of the engagement groove. Obtain comprising a disk pressing piece having elasticity, the support member has a central protrusion and a hard disk substrate transport case, characterized in that it comprises a holding member supporting portions disposed on both sides of the projecting portion.