CN1042177C

CN1042177C - Tape cartridge with increased tape capacity

Info

Publication number: CN1042177C
Application number: CN94102785A
Authority: CN
Inventors: 佐藤政则
Original assignee: Sony Corp
Current assignee: Sony Corp
Priority date: 1993-02-15
Filing date: 1994-02-15
Publication date: 1999-02-17
Anticipated expiration: 2014-02-15
Also published as: TW318590U; CN1095517A; JPH06243636A; KR940020401A

Abstract

To prevent the camber in a noninserting part and the fall in the outer peripheral wall (rib) of the noninserting part in the cover of a tape cartridge with large capacity provided with an inserting part and the noninserting part to a disk drive. The inserting part, 2 and the noninserting part 3 to the disk drive are provided on the cover 1 of the disk cartridge. The wing parts 6, 7 of left and right spreading out of the outside than both sides of the inserting part 2 are formed on both sides of left and right of the noninserting part 3, and the outer peripheral walls (ribs) are provided on the peripheral parts of these wing parts 6, 7. Then, the reinforcement ribs 11...11, 12...12 preventing the deformation in them are provided on the wing parts 6, 7 and the outer peripheral walls.

Description

Tape cassete with GB on Tape of increase

The present invention relates generally to a kind of tape cassete, especially relate to the lid of this tape cassete.

Referring to Fig. 7, as the tape cassete (hereinafter referred to as data capsule) 111 of computer file, it has a metal substrate 101 and is contained in a plastic box cover 102 on this substrate 101.

Being equipped with a tape on this substrate 101 carries core or reel 104 and a tape to receive core or reel 105, one end of tape 103 is connected to tape and carries core 104, the other end then is connected to tape and receives core 105, and a driving wheel 107 and a pair of horn ring the 108, the 109th, and is continuous mutually by a driving belt 106.

In use, data capsule 111 is inserted a drive unit or the recording/playback device (not shown) from the tape cassete socket.

The application mode of this tape cassete requires with in this drive unit of the whole insertion of tape cassete such problem is arranged just, and the roll coil of strip diameter of the tape 103 that is promptly twined can not increase.

For addressing this problem, data capsule 111 among Fig. 8 is improving aspect the increase capacity, this box shown in the plane on form a protuberance, this part is insertion portion 112, and it has the narrow part that can insert in this driver, also has a roomy part, be non-insertion portion 113, this part does not insert in the driver, only need insertion portion 112 is inserted in this driver, but not 113 of insertion portions is given prominence to outside driver.This tape is carried core 104 and tape to receive core 105 and all is contained on the non-insertion portion 113, has therefore increased the roll coil of strip diameter of tape 103.This structure example is as consulting US-5,239, No. 436 United States Patent (USP)s.

Data capsule 111 with increase capacity has been shown among Fig. 9, and it comprises a substrate 121 and a lid 122.

This lid 122 is made up of an insertion portion 123 and a non-insertion portion 124.

What be configured in non-insertion portion 124 both sides is a left side and right flank or roomy part 125,126, and a peripheral wall 27,128 is wherein all arranged on the neighboring of each.

Lid 122 among Figure 10 adopts metal die 131 to make.Molten resin is injected in this die cavity 132 from a cast gate 133 that is located substantially on the middle part of die cavity 132.

Contrast Fig. 9, the vestige 134 of cast gate 133 remains on the surface of lid 122.In addition, have decorative groove 135,136 in the top of lid 122.

Data capsule capacity with such structure increases, and because surface area strengthens, produces curved open prying and indenture easily in the zone away from cast gate 133.

Particularly under the situation of lid 122 tops configuration decorative groove 135,136, the level and smooth liquid stream of molten resin be formed the projection 135 of the metal die 131 of this groove ', 136 ' hinder, molded be positioned at the left wing of groove 135,136 outsides and the peripheral wall 127,128 of right flank 125,126 etc. after, the result very easily causes and increases residual stress or die casting distortion.

Therefore, from Figure 11,12 we can see above-mentioned negative consequence, inwardly produced on the peripheral wall 127,128 or gradient outwardly (note molded conditional decision this wall 127,128 inwardly tiltedly or outwards tiltedly), the sealing property of data capsule is worsened, and as can be seen from Figure 13, the prying that produces on both wings 125,126 has constituted the hindering factor that is unfavorable for the tape running performance.

The lid that the purpose of this invention is to provide a kind of tape cassete, it has the gradient that reduces, prying and indenture etc.

According to an aspect of the present invention, the invention provides a kind of tape cassete for the tape drive use, this driver has one and records/put head and a tape cassete receive window, and this window has a preset width, this tape cassete comprises: a upper box cover and a substrate, this upper box cover has a roof and a sidewall that extends downwards, this sidewall extends downwards and engages this substrate from this roof, box housing of the collaborative qualification of this upper box cover and this substrate, this box housing comprises first and second portion, the width of this first is greater than the preset width of this receive window, this second portion has a magnetic head opening, this magnetic head opening for this record/put the head provide one with the path that is arranged on a contact with tape in this tape cassete, the width of this second portion is slightly less than the preset width of this receive window of this tape drive, thereby guarantee this second portion to be inserted fully basically this window of this tape drive, this second portion and first are continuous, thereby can constitute an angular region betwixt at least; Be installed in rotation on first and second tape reels in the first of this box housing, this first and second tape reel can be respectively around first and second rotations, one end of this tape is connected on this first tape reel, and the other end of this tape then is connected on this second tape reel; This tape cassete also comprises: many first ribs, this first rib is formed on this inside surface of side wall of this upper box cover separatedly with spacing distance, this first rib protrudes out on first direction, this direction is perpendicular to this sidewall, and each this rib is to move back and pulls out shape and make each rib all in constriction on the direction of this substrate, this first rib is formed on a part along this sidewall, and a part of this sidewall forms this first of this tape cassete; At least one second rib, this second rib are formed on the low surface of this upper box cover, and this second rib is in a part of this roof that intersects at this upper box cover, and a part of this roof of this upper box cover forms the part of this first of tape cassete.

According to another aspect of the present invention, the tape cassete that provides a kind of tape drive to use, this driver have one and record/put head and the tape cassete receive window with certain width, and this tape cassete comprises:

, a tape;

A box body comprises a upper box cover and a substrate, the width of the first of this box housing is greater than this preset width of this receive window of this tape drive, its second portion is recorded/is put head for this magnetic head opening that leads to this tape is provided, the width of this part is slightly less than the preset width of this window of this tape drive, thereby guaranteed this second portion is inserted this window of this tape drive basically, this second portion and first are continuous, thereby between them, form an angular region at least, wherein in the interior upper wall in the pterion of expanding from this preset width of this upper box cover of this first, have a plurality of ribs; And

First and second tape reels are installed in rotation in this first of this box housing, and around first and second rotations, an end of this tape is connected on this first tape reel respectively for they, and the other end of this tape then is connected on this second tape reel.

Fig. 1 is the perspective view that the present invention has the tape cassete embodiment of lid.

Fig. 2 is the backplan of lid.

Fig. 3 is the fragmentary, perspective view with lid peripheral wall of stiffening rib;

Fig. 4 is the part sectioned view with lid alar part of stiffening rib;

Fig. 5 is the view that is similar to Fig. 2, the embodiment of second preferred lid of expression;

Fig. 6 is the view that is similar to Fig. 4, and expression has the metal die of the ridge that forms groove;

Fig. 7 is the view that is similar to Fig. 1, represents known tape cassete;

Fig. 8 is the plan view of another kind of known tape cassete;

Fig. 9 is the skeleton view of another kind of known tape cassete;

Figure 10 is the view that is similar to Fig. 6 of known metal pattern product;

Figure 11 is the partial view of the known lid alar part of expression;

Figure 12 is the view that is similar to Figure 11, represents the alar part of known lid;

Figure 13 is the side view that the alar part of prying takes place.

Referring to Fig. 1-4, there is shown first preferred embodiment of tape cassete lid.

In Fig. 1, lid 1 comprises the insertion portion 2 and a non-insertion portion 3 that does not insert in the disc driver that can insert in the disc driver.

This non-insertion portion 3 have one basically with the wide non-insertion main body 3a of this insertion portion 2, a left side and right flank or

roomy part

6,7, it is connected to the both sides of non-insertion main body 3a by decorative groove 4,5, a peripheral wall 8 is formed on the neighboring of the

wing

6,7 and non-insertion main body 3a, and a transparent window plate 10 tightly covers on the window frame or recessed frame 9 that are positioned at this non-insertion main body 3a center.

In Fig. 2, can find out, on the medial surface of the peripheral wall 8 of lid 1, arrange a plurality of with predetermined interval, 10 stiffening rib 11 for example ... 11, be used to prevent these peripheral wall 8 run-off the straights or distortion etc., similarly, on the left and

right wing

6,7, be furnished with stiffening rib 12 ... 12, be used to prevent that this

alar part

6,7 from distortion such as deflection taking place.

Referring to Fig. 3, the stiffening rib 11 of peripheral wall 8 ... 11 each form along direction perpendicular to the inside surface of this peripheral wall 8.

Each stiffening rib 11 is triangular in shape basically, and strengthens degree of convexity from the upper end of rib 11 gradually to its lower end, and this lower end is connected to the upside of

alar part

6,7.

This stiffening rib 11 ... 11 are used for supporting peripheral wall 8 internally, avoid producing on this peripheral wall 8 inclination or distortion etc.

It is to be furnished with demoulding tapering for the demoulding portion 13 to stiffening rib 11 that each stiffening rib 11 forms leg-of-mutton reason basically.

The height of stiffening rib 11 and width etc. depend on the factors such as thickness of peripheral wall 8, and its value only need be considered unlikely at the so-called indenture of molded back generation.And stiffening rib 11 ... 11 quantity and the spacing distance between the both sides of the chest should be determined at suitable numerical value.

The Fig. 2 that looks back, stiffening rib 12 ... 12 are formed on the both sides on a limit of window frame 9, and are linked to be a straight line with it.

Referring to Fig. 4, each stiffening rib 12 has the width W (width W is 2.3 millimeters, and thickness T is 24 millimeters) that is substantially equal to the

wing

6,7 thickness T here, and its height H be equivalent to haply the

wing

6,7 thickness T 1/5, promptly 0.5 millimeter.In addition, be approximately the both sides that 45 ° demoulding tapering 13,13 is formed on this stiffening rib 12.

The width W of stiffening rib 12 and height H depend on during molded lid 1 situation of the indenture that produces etc.Confirm, after making stiffening rib 12, on lid, then indenture can not take place, on the

wing

6,7, also do not produce the prying phenomenon with above-mentioned value.But it should be noted its width and highly need not be confined to the numerical value that present embodiment is given.

Referring to Fig. 5, the stiffening rib 12 of second preferred embodiment of the present invention shown in it ... 12 be grid type spread over the

wing

6,7 above.

In this embodiment, each stiffening rib 12 ... 12 angles that intersect each other are roughly the right angle.

The height of each stiffening rib 12 is 0.5 millimeter, and its width is 1.0 millimeters, and the demoulding tapering is roughly 45 °, and it is formed on the stiffening rib 12 in the mode identical with embodiment.

Comparatively ideally be stiffening rib 12 ... 12 angle of cut span is between 45 ° and 90 °, and its width and height are less than 1.0 millimeters, and but, these are worth not as restricted.

Return Fig. 1, the substrate 21 of data capsule, this substrate 21 insert 22 and non-insertion districts 23, district by one and constitute.

Tape carries core or reel 25 and tape to receive core or reel 26 all is contained in the non-insertion district 23 of substrate 21, is connected to this tape as an end of the tape 24 of recording medium and carries on core 25, and the other end of tape is connected to tape and receives on the core 26.

In addition, a pair of belt-guiding

shaft

27,28 is contained in the insertion district 22 of substrate 21, is positioned at its both ends or both sides, front, and 29,30 of a pair of guide pins are contained between belt-guiding

shaft

27,28 and supply reel 25 and the machine reel 26.Belt-guiding

shaft

27,28 and

guide pins

29,30 interconnect by tape 24, thereby constitute a tape running passage or pathway.Tape transfer dish 25 and tape take-up reel 26 are the magnetic tape deck driven rotary that will describe below one, are positioned at the magnetic head that inserts district 22 recessed portion 31 of usefulness that stretches thereby tape 24 is turned over along the tape running passage.

This magnetic tape deck comprises a driving wheel 32, it is contained in the middle part in the insertion district 22 of substrate 21, and first and

second horn rings

33,34, they are arranged in the non-insertion district 23 of substrate 21, be positioned at the both sides of one end or its dorsal area, be with 35 with sending, be used for driving wheel 32 and first and

second horn ring

33,34 interconnect, a part of pressurized of the travelling belt 35 between the driving wheel 32 and first horn ring 33 touches on the periphery of tape 24, this tape is wrapped on the tape supply reel 25, similarly, the travelling belt part pressurized between the driving wheel 32 and second horn ring 34 touches on the tape 24 that is wrapped in the tape take-up reel 26.

When driving mechanism (not shown) inhour as shown in Figure 1 drives this driving wheel 32, tape transfer dish 25 and tape take-up reel 26 be by travelling belt 35 clockwise driven rotary as shown in Figure 1, makes tape 24 on the tape transfer dish 25 gradually around to tape take-up reel 26.On the other hand, when turning clockwise driving wheel 32 as shown in Figure 1,26 inhour rotations as shown in Figure 1 of tape transfer dish 25 and tape take-up reel rap around to the tape in the tape take-up reel 26 24 on the tape transfer dish 25 again.

Lid 1 installs on the substrate 24, so that cover in tape transfer dish 25 and tape take-up reel 26, and

guide pins

29,30, driving wheel 32, and first and

second horn rings

33,34 etc., for use.

As mentioned above, in Figure 10, when on lid 1, having decorative groove 4,5, the smooth flow of molten resin be subjected to forming the protuberance 135,136 of the metallic mold 131 of this groove ' obstruction, cause residual stress increase on the

wing

6,7 and peripheral wall 8, the result causes that easily prying and tilt phenomenon take place for the

wing

6,7 and peripheral wall 8.

Therefore, referring to Fig. 6, in the zone of the die cavity 42 of metal die 41, form the recessed district 45 of a width increasing, it is towards the

protuberance

43,44 that forms groove, thereby avoided molten resin channel narrows problem, even no exception, thereby guaranteed that the resin of fusion smoothly flows to the outside of the

protuberance

43,44 that forms this groove unimpededly in die cavity 42 zones with the

protuberance

43,44 that forms this groove.

The two

sides

46,47 in recessed district 45 become to be roughly 45 ° of angles with the fluid level of molten resin liquid stream.Metal die 41 has a gate portions 48.

Because lid 1 has said structure, stiffening rib 11 wherein ... 11 can prevent that peripheral wall 8 from producing distortion, tilt etc., thereby guaranteed the sealing property of data tape box, and stiffening rib 12 ... 12 can prevent that the

wing

6,7 from prying etc. taking place, thereby can not produce deleterious effect to the tape running performance.

The beneficial effect of lid of the present invention is as follows:

1) owing to disposed stiffening rib, avoided peripheral wall to produce, prevented that therefore dust is from because peripheral wall inclination etc. cause that the gap that produces invades the problem in the box between peripheral wall and substrate.

2) owing to disposed stiffening rib, distortion such as alar part generation prying have been prevented.Therefore eliminated bad resistance phenomenon, tape can be turned round smoothly the tape running performance.

3) owing to have the demoulding tapering on the stiffening rib, after molded, realize the demoulding easily.

Described the present invention in conjunction with preferred embodiment above, it should be noted that, the present invention is not limited to the foregoing description, also may help out various changes and modification to the present invention and does not break away from spirit of the present invention.

Claims

1. tape cassete that uses for tape drive, described driver has one and records/put head and a tape cassete receive window, and described window has a preset width, described tape cassete comprises: a upper box cover and a substrate; Described upper box cover has a roof and a sidewall that extends downwards, described sidewall extends downwards and engages described substrate from described roof, box housing of the collaborative qualification of described upper box cover and described substrate, described box housing comprises first and second portion, the width of described first is greater than the preset width of described receive window, described second portion has a magnetic head opening, described magnetic head opening for described record/put head provide one with the path that is arranged on a contact with tape in the described tape cassete, the width of described second portion is slightly less than the preset width of the described receive window of described tape drive, thereby guarantee described second portion to be inserted fully basically the described window of described tape drive, described second portion and first are continuous, thereby can constitute an angular region betwixt at least; Be installed in rotation on first and second tape reels in the first of described box housing, described first and second tape reels can be respectively around first and second rotations, one end of described tape is connected on described first tape reel, the other end of described tape then is connected on described second tape reel, it is characterized in that: described tape cassete also comprises:

Many first ribs, described first rib is formed on the described inside surface of side wall of described upper box cover separatedly with spacing distance, described first rib protrudes out on first direction, described direction is perpendicular to described sidewall, and each described rib is to move back and pulls out shape and make each rib all in constriction on the direction of described substrate, described first rib is formed on a part along described sidewall, and a part of described sidewall forms the described first of described tape cassete;

At least one second rib, described second rib is formed on the low surface of described upper box cover, described second rib is in a part of the described roof that intersects at described upper box cover, and a part of the described roof of described upper box cover forms the part of the described first of tape cassete.

2. described tape cassete as claimed in claim 1 is characterized in that described upper box cover is formed from a resin, and described a plurality of rib is cone shape.

3. described tape cassete as claimed in claim 1 is characterized in that, described at least one second rib is many ribs that become latticed configuration.

4. described tape cassete as claimed in claim 1 is characterized in that the width of each described second rib is substantially equal to the thickness of the described roof of described upper box cover.

5. described tape cassete as claimed in claim 1 is characterized in that, described at least one second rib has and moves back the edge that pulls out, described edge on the direction of the center line that leaves described rib outside constriction.

6. described tape cassete as claimed in claim 5 is characterized in that, described angle at 45, plane of moving back the top surface of the edge that pulls out and described at least one second rib.

7. described tape cassete as claimed in claim 1 is characterized in that, the height of described at least one second rib be substantially equal to described upper box cover thickness 1/5.

8. described tape cassete as claimed in claim 1 is characterized in that, described upper box cover also comprises a rectangular window, and described at least one second rib extends along a side that is parallel to described window.

9. described tape cassete as claimed in claim 1 is characterized in that, described upper box cover has two grooves, and each groove extends from a described angle between described first and second parts and a side at the described upper box cover on described second portion opposite.

10. described tape cassete as claimed in claim 9 is characterized in that, rises between described groove on a surface of the described upper box cover on described groove opposite.

11. described tape cassete as claimed in claim 1 is characterized in that, described tape not with described rib in any one ribbed joint touch.

12. described tape cassete as claimed in claim 1 is characterized in that described tape is not subjected to the guiding of any one rib in the described rib.

13. described tape cassete as claimed in claim 3 is characterized in that, the rib of the latticed configuration of described one-tenth is arranged in the described first of dual-side of described second portion.