JPH082856Y2 - Holding shelf for magnetic recording disks - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to storage and transportation of a large number of disks in a batch type, a washing machine, etc. in the manufacturing process of a magnetic recording disk which is a recording device such as a computer. The present invention relates to a holding shelf for a magnetic recording disk to be housed in the process processor of the above.

[Conventional technology]

A magnetic recording disk (hereinafter, also referred to as a disk including a manufacturing process) which is a magnetic recording medium is becoming smaller along with an increase in capacity, an increase in density, and an increase in speed. For example, the nominal diameter of the disc is 5.25 "(d ₁ = 130mm), 3.5"
(D ₂ = 95mm) and 2.5 ″ (d ₃ = 65mm), which is moving toward miniaturization.

In process operations, including storage, holding shelves are used to hold multiple disks in line. The disks are transported together with the holding shelves and set in the processing equipment, and the holding shelves are related to various FA (factory automation) equipment and jigs and tools including robots.

FIG. 3 is a front sectional view of a holding rack for 5.25 ″ of Conventional Example 1, and FIG. 4 is a front sectional view of a holding rack for 3.5 ″ of Conventional Example 2.

In either figure, the three holding rods 2 provided a plurality of grooves 1 of annular locking the outer periphery of the disk D ₁ or D _2, a pair of side plates 3 to secure supporting both ends of the holding rods 2 A holding shelf 4 is constructed from the above, two upper holding rods are located substantially at both ends of the diameter of the disk D ₁ or D ₂ , and the remaining one holding rod is located below the diameter, The plurality of disks are locked and held in the groove.

The lower side of the pair of side plates 3 is further connected by a connecting rod 5 as a strength member, and a plurality of hangers 6 for handling to the FA device and the like project to the side of the side plates 3.

In addition to the illustrated width B and height H of the holding shelf 4, the positions of the hangers 6 are the same for 5.25 "and 3.5", so that the FA device and jigs described above are common. Not only is it possible to mix the two sizes in the process to proceed with the manufacturing process, it is not necessary to change the FA equipment and jigs and tools in different sizes, and it is possible to produce various small quantities.

[Problems to be solved by the device]

In the above-mentioned conventional technique, since the handling dimensions such as B and H of the holding shelf are the same regardless of the size of the disc, FA
Equipment and jigs are common, processes of different sizes can be mixed, and there is no need to change the setup in a variety of small-volume production, and efficient steps can be organized. Therefore, the efficiency of the whole process does not matter so much even if the space factor is slightly worse for the 3.5 ″ disc.

However, although not shown in the figure, if the holding rack for 2.5 ″ discs also adopts the same structure as the above-mentioned conventional example, the space factor becomes worse, and particularly the production amount of 2.5 ″ is higher than the production amount of discs of other sizes. Nowadays, the number of processes is increasing and the efficiency of the process is extremely deteriorated.

The purpose of this device is to divide a large disc into an integer.
It is an object of the present invention to provide a holding shelf for a magnetic recording disk in which the outer dimensions of a holding shelf for a disk having the same size are the same as those for the large disk and the space factor can be improved.

[Means for solving the problem]

A holding shelf for a magnetic recording disk according to the first aspect of the present invention comprises a holding rod having a plurality of tangential grooves for locking the outer circumference of the disc, and a pair of fixed holding ends of three or more holding rods per set. Holding plates are formed from the side plates of the discs, the upper two of the holding rods are located at substantially both ends of the diameter of the disc, and the remaining holding rods are located below the diameter of the discs. A plurality of rows of the holding rods are fixedly supported by the pair of side plates to hold a plurality of rows of the discs, and a pair of adjacent upper holdings of an adjacent pair are held. The stick is shared by one.

A holding shelf for a magnetic recording disk according to the second aspect of the present invention is the same as the first aspect of the first aspect, in which the discs in adjacent rows do not contact each other.
The upper holding bar is located in a zigzag.

[Action]

In the invention 1, even if the target disk is not a size that is almost an integral multiple of a larger disk than this and is an arbitrary size, the adjacent upper holdings of the adjoining groups that hold a plurality of n rows of disks are held. By sharing one rod, the number of holding rods is reduced to (n-1) and the width B of the side plate is reduced accordingly.

In the case where the target disc has a size that is approximately an integral multiple of a larger disc, the widths of both side plates can be made the same. In order to make the reason easy to understand, a real number will be described below without using algebra for the disc diameter, the holding rod diameter, the groove depth, and the like.

If you hold two rows of discs with d ₃ = 65 mm and _three upper holding rods and the holding rod diameter is 8 mm and the groove depth is 1 mm, the outer width of the outermost rod is 150 mm, and the side plate width B is the limit dimension. Bmin is 150
mm. Here, the two holding rods used in common are in contact with each other, and the Bmin is 164 mm.

On the other hand, in the case of the conventional example 1 in which 5.25 ″ d ₁ = 130 mm discs are held in one row and two, and the same size holding rod is used, the outer side width, that is, the side plate width limit dimension Bmin is
It will be 144 mm.

Therefore, B for 5.25 "is slightly larger than 6mm by 150mm
Then, when d ₃ = 65 mm, the width of the holding rack is the same as that of the common holding rod of the present invention, which is advantageous in the process.
In the case where the holding rod is not shared, B must be 164 mm or more as described above. To keep the width of the holding shelf the same and to keep the advantage in the process, it is further increased by 14 mm, and the processing equipment and jigs must be enlarged. There must be.

In device 2, since the upper holding bar is arranged in a zigzag manner, the discs in the adjacent rows come close to the contact point,
In the above example of the real number, the critical dimension Bmin is approximately 144 mm (the outermost holding rod is slightly zigzag, but further inward).
matches mm.

The above-mentioned action, in particular, the action of sharing the width B with a narrow value,
For example, 5.25 ″ (d ₁ = 130 mm) 1/3 disc d ₄ ≈ 43 (≈
In the case of 1.7 ″), the same is true when three rows of holding shelves are used, which is advantageous in the process.

〔Example〕

1 is a front sectional view of a 2.5 "holding shelf of the embodiment, showing a II cross section of FIG. 2, and FIG. 2 is a plan view of FIG.

In these drawings, the disks D ₃ are arranged in two rows, and a holding bar 2 having a plurality of annular grooves 1 for locking the outer circumference of the disk D ₃ and three ends of the three holding bars 2 are fixedly supported. A holding shelf 14 is composed of a pair of side plates 3, and the upper two holding rods 2 are located substantially at both ends of the diameter of the disk D ₃ , and the remaining one holding rod is located below the diameter. Then, the plurality of disks D ₃ are locked in the groove 1 and held in a row for each set. The lower part of the side plate 3 is reinforced by the connecting rod 5,
The hanger 6 is sticking out.

As a characteristic structure of the embodiment, two sets of the holding rods 2 are fixedly supported by the pair of side plates ₃ to hold two rows of discs D ₃ , and the adjacent upper holding rods 2 of the adjacent sets are: It is shared by one.

The groove 1 need not be annular and may be tangential to the point at which the disc is locked, and the number of holding rods 2 per set may be three or more, or the number of sets and the number of rows may be two or more.

In the device according to the second invention, the central holding rod 2 in FIG. 1 is located above or below the drawing, and the disks D ₃ approach each other below or above the rows without contact between the rows. As a matter of course, since the holding rods 2 lock near the diameter of the disc, the left and right holding rods 2 on the upper side are slightly closer to the inner side than the drawing.

According to the above-described embodiment, in the case of holding n rows of disks, the number of holding rods is small (n-1), and the width B of the side plate, that is, the holding shelf is also narrow.

In particular, a holding shelf for a small size disk, which is an integer number of 1 / m of a large size disk, can hold m rows of disks, and can increase the width B of the large size disk to a common width. There are process advantages. In Invention 2, the width B of a large disc is never increased.

[Effect of device]

A holding shelf for a magnetic recording disk according to the present invention comprises a holding rod having a plurality of tangential grooves for locking the outer periphery of the disk and a pair of fixedly supporting both ends of three or more holding rods per set. Holding plates are formed from the side plates of the discs, the upper two of the holding rods are located at substantially both ends of the diameter of the disc, and the remaining holding rods are located below the diameter of the discs. A plurality of rows of the holding rods are fixedly supported by the pair of side plates to hold a plurality of rows of the discs, and a pair of adjacent upper holdings of an adjacent pair are held. Since the rods are shared by one rod, the adjacent upper holding rods in the adjacent columns are also shared by one rod, and in the nth column, only (n-1) rods are available, which is economical, and the holding amount is increased. Space factor for disk retention due to narrow shelf Especially, the width of the holding shelf for discs of a size that is almost an integral multiple of a large disc becomes the same width as the width of the holding shelf for large discs, which is close to the minimum required limit value. Therefore, even when mixing discs of different sizes and passing them to the manufacturing process, it is possible to unify them into holding shelves with the same width, and the FA device and jigs and tools during the process become common and the setup change is possible. And the like are unnecessary, and there is an effect that the production efficiency is improved.

In Invention 2, since the upper holding bar is positioned in a zigzag manner, the width of the holding rack having a size of an integral number never exceeds the reduction value of the width of the holding rack having a large size.

[Brief description of drawings]

1 is a front sectional view of a 2.5 "holding shelf of the embodiment, showing a II cross section of FIG. 2, FIG. 2 is a plan view of FIG. 1, and FIG. 3 is a conventional example. 1 is a front sectional view of a holding rack for 5.25 "of Fig. 1, and Fig. 4 is a front sectional view of a holding rack for 3.5" of Conventional Example 2. 1 ... groove, 2 ... holding rod, 3 ... side plate, 4,14 ... holding rack, D ₁ , D ₂ , D ₃ ... disk, d ₁ , d ₂ , d ₃ ... diameter, B
……width.

Claims (2)

[Scope of utility model registration request] 1. A holding shelf is composed of a holding rod provided with a plurality of tangential grooves for locking the outer periphery of a disk and a pair of side plates for fixing and supporting both ends of three or more holding rods per set. The upper two of the holding rods are located substantially at both ends of the diameter of the discs, and the remaining holding rods are located below the diameter of the discs. In the case of holding in one row, a plurality of sets of the holding rods are fixedly supported by the pair of side plates to hold a plurality of rows of the disks, and the adjacent upper holding rods of an adjacent set are shared by one. A holding shelf for a magnetic recording disk, which is characterized in that 2. A holding shelf for a magnetic recording disk according to claim 1, wherein the upper holding bar is positioned in a zigzag manner within a range in which the disks in adjacent rows do not contact each other. A holding shelf for discs.