CN1120792C

CN1120792C - Hard disk drive head tray

Info

Publication number: CN1120792C
Application number: CN99801183A
Authority: CN
Inventors: 江上伸夫
Original assignee: Matsushita Kotobuki Electronics Industries Ltd; Egami Chemical Co Ltd; Nissho Corp
Current assignee: PHC Corp; Egami Chemical Co Ltd; Nissho Corp
Priority date: 1998-07-22
Filing date: 1999-07-16
Publication date: 2003-09-10
Anticipated expiration: 2019-07-16
Also published as: MY133184A; JP2990164B1; WO2000005152A1; JP2000033989A; CN1274331A; TW401368B; KR20010024012A

Abstract

A tray for holding and carrying multiple HDD heads. On the surface of a positioning section (12, 15), the tray (10) has fine projections facing places where HDD heads (30) are set. An example of the fine projection is a hemispheric projection (20) having a height (several 100 mu m) a little larger than the thickness of a wiring (34). Another example is a linear projection (21) of several 100 mu m in width and several mm in length. This constitution allows the wiring section of the HDD heads (30) to touch the positioning section (12, 15) of the tray (10) only at the fine projections (20, 21), thus making friction between the two small sufficiently. Therefore, it is ensured those problems such as damage to and cut of the wiring (34) due to friction is prevented.

Description

Hard disk drive head tray

The carriage that the present invention relates to transport the employed magnetic head of hard disk drive (HDD) (following title HDD magnetic head) and use.

The HDD magnetic head is that length is about several centimetres laminal precision component, is to be made of magnetic head (read-write is used), fixed part and cantilever.Cantilever connects magnetic readwrite head and fixed part, imposes trickle wiring on its surface.Because such HDD magnetic head is very accurate, damage easily, when carelessness is installed and connect up, produce problems such as damage, pollution.Therefore, for example at the manufacturing scene of HDD magnetic head, bracket (hereinafter to be referred as carriage) the harvesting HDD magnetic head that use can be received and kept a plurality of HDD magnetic heads together imposes necessary processing such as cleaning under this state.After carrying out such processing, for fear of falling into dust, stacked a plurality of carriages of locating the HDD magnetic head, vacuum packaging.Stacked like this carriage is to call the carriage group in the following text.

When making the carriage group vacuum-packed, carriage vibrates, and when this vibration took place, the inside face friction of the wiring side of HDD magnetic head and carriage caused damage, fragmentation.For solving such problem, the purpose of this invention is to provide and a kind ofly can not produce the carriage that damages the HDD magnetic head owing to friction as described above.

For addressing the above problem, the invention provides a kind of carriage, it is carriage for a plurality of hard disk drive heads that fixedly have wiring side, but, it is carriage with a plurality of location divisions of fixing a hard disk drive head respectively, it is characterized in that: the surface of the part that contacts with the wiring side of hard disk drive head in each location division is provided with small protuberance.

About carriage of the present invention is in the location division for a plurality of HDD magnetic heads in location, is provided with small protuberance on the surface with the wiring side contact portion of each HDD magnetic head.As the size of small protuberance and the form of shape, for example, can enumerate diameter and be the hemispherical protuberances about hundreds of μ m, width is about hundreds of μ m, the linear uplifts of length about for number mm etc. are various.Also have, with small protuberance during as linear uplift, preferably in the wiring side of its length direction and the HDD magnetic head that is positioned, the dummy section that does not impose wiring contacts such position (reach towards) small protuberance is set with described wiring side.

As according to carriage of the present invention as described above and since the location division of the wiring side of HDD magnetic head and carriage contacted only be small protuberance, the friction between the wiring side of HDD magnetic head and the location division of carriage is very little.Therefore, prevent really owing to friction causes the damage of wiring and such problem that breaks.

Following brief description accompanying drawing:

Fig. 1 is the block diagram of the carriage of embodiments of the invention 1.

Fig. 2 is the birds-eye view of above-mentioned carriage.

Fig. 3 is the left view of above-mentioned carriage.

Fig. 4 is the front view of above-mentioned carriage.

Fig. 5 is the upward view of above-mentioned carriage.

Fig. 6 is the cutaway view of the VI-VI line of Fig. 2.

Fig. 7 is the cutaway view of the VII-VII line of Fig. 2.

Fig. 8 is the enlarged drawing of the A part of Fig. 2.

Fig. 9 is the figure that the A part of Fig. 2 is seen from right flank.

Figure 10 is the enlarged drawing of the A conversion example partly of presentation graphs 2.

Figure 11 is the figure that the conversion example of the A part of Fig. 2 is seen from right flank.

Figure 12 and Figure 13 are the figure of the desirable form of expression linear uplift, and wherein, Figure 12 is the part enlarged drawing of the A part of the suitable Fig. 2 of expression, and Figure 13 is the figure that same section is seen from right flank.

Figure 14 is the other forms of birds-eye view of expression location division.

Figure 15 is the block diagram of carriage group that expression has the carriage of a plurality of Fig. 1.

Figure 16 is the front view of the carriage group of Figure 15.

Figure 17 is the birds-eye view of the carriage of other embodiment of the present invention.

Figure 18 is the cutaway view of the XVIII-XVIII line of Figure 17.

Embodiment (the best form that carries out an invention)

Below, with reference to the embodiment of description of drawings about carriage of the present invention.

Fig. 1～Fig. 5 is the figure of the carriage of expression embodiments of the invention 1, and wherein Fig. 1 block diagram, Fig. 2 are that birds-eye view, Fig. 3 are that left view, Fig. 4 are that front view, Fig. 5 are upward views.Also have, the right side view and left view figure symmetry of carriage 10, the back view of carriage 10 and front view symmetry be not so figure.

Fig. 1～Fig. 5 below, carriage 10 is made of following: in the pair of plates portion 12 that divides other single setting above a plurality of locating dowel pins (hereinafter to be referred as pin) 11, a pair of beam 15 with single setting on a plurality of positioning convex 13 and 14, with vertical mutually with flat part 12 and beam 15 and support these the many crossbeams 16 and the framework 17 of support plate portion 12, beam 15 and crossbeam 16.Wherein, the pin 11 that is arranged on flat part 12 constitutes the said location division of the present invention with the projection 13 that is arranged on beam 15 and 14, makes the HDD head position by these.Be stored in the magnetic head that HDD magnetic heads 30 in the carriage 10 to have in order with spiral nail HDD magnetic head 30 being fixed in the hard disk fixed part 31 of the screw 32 that is provided with and cantilever 33 and to be installed in the front end of cantilever 33.Pin 11 passes screw 32, and cantilever 33 is positioned between

adjacent projection

13 and 14, and HDD magnetic head 30 is placed in the carriage 10.As seen from Figure 1, at each flat part 12 12 pins 11 are arranged, carriage 10 can be received and kept 24 HDD magnetic heads 30 altogether.

The following describes the fixedly structure of the carriage 10 of HDD magnetic head 30.

As Figure 6 and Figure 7, singlely at the back side of flat part 12 be provided with sleeve 18 cylindraceous.Here, each sleeve 18 is positioned at just and respectively sells 11 the back side.Such as described below and pin 11 interoperations of this sleeve 18, fixedly the HDD magnetic head 30.At first, as the front illustrated with reference to Fig. 1～Fig. 5, be configured in the carriage 10.At this moment, the wiring side of HDD magnetic head 30 down.Then, on the 1st carriage 10A, stack the 2nd carriage 10B.Under this overlapping state, the front end of the pin 11 of the 1st carriage 10A inserts the hole of the sleeve 18 of the 2nd carriage 10B, between the surface of the front end of the sleeve 18 of the 2nd carriage 10B and the flat part 12 of the 1st carriage 10A gap a little can be arranged.Like this, the fixed part 31 of HDD magnetic head 30 by the 1st carriage 10A flat part 12 and the sleeve 18 of the 2nd carriage 10B from slowly being fixed up and down, HDD magnetic head 30 is not pulled out.

Fig. 8 is the enlarged drawing of the A part of Fig. 2, and Fig. 9 is the figure that the A part of Fig. 2 is seen from right flank.As Fig. 8 and shown in Figure 9, on beam 15, between

projection

13 and 14, form hemispheric minute protrusions 20.The diameter of this minute protrusions 20 (or height) is than the thickness of the wiring 34 of the arm 33 that is fixed on HDD magnetic head 30 (as about hundreds of μ m) a little greatly.Minute protrusions 20 is not pass through the white space contact arm 33 of wiring 34 in the surface of the arm 33 of HDD magnetic head 30.So, as shown in Figure 9, in the time of in HDD magnetic head 30 is fixed on carriage 10, produce the gap between the surface of arm 33 and beam 15.Therefore, when vacuumizing for vacuum-packed carriage 10, when transporting by vacuum-packed carriage 10, even carriage 10 vibrations, wiring 34 also can not contact the surface of beam 15 and other parts of carriage 10.

Also have, the shape of the minute protrusions that is provided with on beam 15 is not limited to hemispheric projection.For example, Figure 10 and Figure 11 are the figure of other examples of expression minute protrusions, and wherein, Figure 10 is the enlarged drawing of the A conversion example partly of presentation graphs 2, and Figure 11 is the figure that the expression same section is seen from right flank.In this example is formation linear uplift 21 on beam 15.Be that the edge extends to form linear uplift 21 at the arm 33 of the HDD magnetic head 30 of carriage 10 configurations as described above.The thickness of the aspect ratio wiring 34 of linear uplift 21 is big a little.Can obtain the effect same like this with above-mentioned minute protrusions 20.

Figure 12 and Figure 13 are the figure of the desirable form of expression linear uplift, and wherein, Figure 12 is the part enlarged drawing of the A part of the suitable Fig. 2 of expression, and Figure 13 is the figure that same section is seen from right flank.In the beam 15 of this form, linear uplift 21a that forms in the both sides of projection 14 and 21b extend to the direction of symmetry to form like that.Like this, even at the arm 33 of any side configuration HDD of projection 14 magnetic head 30, owing to, improved the positioning free degree of HDD magnetic head 30 at the white space linear uplift 21a or the 21b contact arm 33 of wiring 34.

In the above embodiment, HDD magnetic head 30 is configured in magnetic head in the carriage 10 like that as arm 33 and beam 15 skew intersections, but this is not the condition of necessity of the present invention.For example, Figure 14 is the other forms of birds-eye view of expression location division, this form, and the linear uplift 22 parallel with crossbeam 16 is to form between the

projection

13 and 14 of beam 15.Because pin 11 is positioned on the extended line of linear uplift 22, HDD magnetic head 30 is vertical mutually with beam 15.Like this, obtain effect as described above.

Figure 15 is that expression has the block diagram of carriage group 40 that a plurality of (this example is 6) have fixed the carriage 10 (carriage shown in Figure 1) of HDD magnetic head (not having diagram).Stacked these a plurality of carriages 10, a pair of clamping plate 41,42 are clamped in its both sides.On stacked carriage, reach the bottom surface loam cake 43 and lower cover 44 are installed respectively.Use for convenience and transport and be assembled into such carriage group.

The loam cake 43 and the lower cover 44 of this carriage group 40 have same size and shape, are called loam cake 43 and lower cover 44 according to the top or bottom surface that is installed in basket.And the carriage number that carriage group is contained decides according to the size of clamping plate 41 and 42.Therefore, as using the clamping plate of different size, can change the carriage number that a carriage group is contained arbitrarily.

Figure 16 is the front view (figure that the arrow XVI direction from Figure 15 is seen) of stacked carriage.As shown in figure 16, when stacked a plurality of carriage 10, the framework 17 of carriage 10 forms the wall of stacked carriage, and positive wall forms a plurality of openings 45 between 2 adjacent carriages 10.Also have, do not draw among the figure, the wall at the stacked carriage back side forms opening 45 too.These openings 45 are set, can be as the following cleaning efficiency that improves the HDD magnetic head of being fixed by carriage group 40 said.That is to say, when having used the clean of rinse water (for example pure water), the carriage group 40 of having received and kept the HDD magnetic head is immersed under the state that takes off upper and lower covers 43,44 in the cleaning liquid that flows, and wash liquid stream is gone into the inside of carriage group 40, and the HDD magnetic head has been received and kept in contact.At this moment, cleaning liquid is not only on carriage group 40 and the bottom surface, and also the opening 45 from the wall that is arranged on the front and the back side flows into, and therefore, rinse water is not trapped in the carriage group 40, because the frequent fresh rinse water of contact has improved cleaning efficiency.

Figure 17 and Figure 18 are the figure of the carriage of expression other embodiment of the present invention, and wherein, Figure 17 is a birds-eye view, and Figure 18 is the cutaway view of the XVIII-XVIII line of Figure 17.Also have, in Figure 17 and Figure 18, because same inscape is used prosign, when its inscape of explanation, with reference to fwd explanation cooresponding with it.

As Figure 17 and shown in Figure 180, carriage 10C comprises increases flat part 12 and beam 15, single be provided with many to same projection 23 of beam 15 and 24 a pair of second beam 25 location divisions.Second beam 25 has the HDD magnetic head of ring portion 35 to be provided with in rearward end in order to locate and to fix as shown in the figure like that.And graphic HDD magnetic head 30a is the extension 36 that the printed wire that forms the high-precision electronic circuit is provided with, and this extension 36 savings easily is electronic component formidable enemy's a static.Consider this problem, in carriage 10C, the thickness of the crossbeam 16 that second beam 25 is supported from below partly increases, and forms section portion 26 above the crossbeam 16 at this.The extension 36 of the 26 contact HDD magnetic head 30a of section portion.So, because the static in the extension 36 is emitted to carriage 10C by section portion 26, can prevent really to extension 36 savings static.Here, if impose the coating of electric conductivity, can prevent really to HDD magnetic head 30a savings static to the surface of carriage 10C.Also have, the coating of such electric conductivity is not limited only to this embodiment carriage 10C, can both desirablely implement about form in any case of the present invention.

Also have, receive and keep and be fixed in the carriage 10C, find out following way for the relatively large magnetic head of the ratio that the HDD magnetic head 30a of Figure 17 is such is stable.That is, in the bottom surface of carriage 10C one side, the strengthening rib 27 of these beam shapes that between the flat part 12 and second beam 25, be arranged in parallel.Assigned position in this carriage 10C configuration HDD magnetic head 30a when overlapping other carriage 10C thereon, above the rear portion of the HDD magnetic head 30a in the carriage 10C of downside, contacts the strengthening rib 27 of the carriage 10C of upside gently.So, because moving of the HDD magnetic head 30a that the appropriateness inhibition is received and kept is difficult to produce the damage of wiring.

Claims

1. hard disk drive head tray, it is carriage for a plurality of hard disk drive heads that fixedly have wiring side, but, it is carriage with a plurality of location divisions of fixing a hard disk drive head respectively, it is characterized in that: the surface of the part that contacts with the wiring side of hard disk drive head in each location division is provided with small protuberance.

2. hard disk drive head tray according to claim 1 is characterized in that: in the wiring side of the hard disk drive head by location, described location division, described small protuberance contacts this wiring side at the dummy section that not have to connect up.

3. hard disk drive head tray according to claim 1, it is characterized in that: described location division has in order to promote does not have the promptly easy part of putting aside static of part of wiring to discharge static from hard disk drive head, and contacts the discharge contact part of this part.

4. hard disk drive head tray according to claim 1 is characterized in that: impose conductive coating.

5. hard disk drive head tray according to claim 1 is characterized in that: have the frame section for stacked a plurality of carriages.

6. hard disk drive head tray according to claim 5, it is characterized in that: be provided with breach at described frame section, when stacked a plurality of carriages had formed a structure, this breach was the opening that makes fluid pass through to constitute for the side at this structure.