CN1095517A - Tape cassete with GB on Tape of increase - Google Patents

Abstract

A kind of tape cassete comprises a box body, and it has the small size zone and the large area region that need not insert tape drive that can be inserted into tape drive, is formed with a plurality of ribs on the peripheral wall of this large area region.

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 described 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 vinyl 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 driving wheel 107 and a pair of horn ring 108,109th, link 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 in the described drive unit of the whole insertion of tape cassete, and the problem of coming like this is that the roll coil of strip diameter of the tape 103 that is 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 the described 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 the described driver, but not 113 of insertion portions is given prominence to outside driver.Described 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 127,128 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 33 that is located substantially on the middle part of die cavity 132.

Contrast Fig. 9, the track 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 prying and groove mark easily in the zone away from cast gate 33.

Particularly disposed decorative groove 135 in lid 122 tops, under 136 the situation, by the level and smooth liquid stream of the molten resin that groove hindered formed the projection 135 of metal die 131 ', 136 ', the result ought moldedly be positioned at groove 135,136, peripheral wall 127, after the left wing and right flank 125,126 of outside such as 128 grades, very easily increase residual stress or die casting distortion.

Therefore, from Figure 11,12 we can see above-mentioned negative consequence, peripheral wall 127, inwardly produced on 128 or (this wall 127 of having noted molded conditional decision of gradient outwardly, 128 is inwardly oblique or outwards oblique), 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 groove mark etc.

According to a scheme of the present invention, a kind of tape cassete for the tape drive use is provided, this driver has one and records/put head and a tape cassete receive window, and this window has predetermined width, and described tape cassete comprises:

, a tape;

A box body, comprise a loam cake and a substrate, the width of the first of described box body is greater than the preset width of the described receive window of described tape drive, its second portion provides a magnetic head opening that leads to described tape for described record/put head, the width of this part is slightly less than the preset width of the described window of described tape drive, thereby guaranteed described second portion is inserted the requirement of the described window of described tape drive basically, described second portion and first are continuous, thereby between them, constitute an angular region at least, wherein on the madial wall of the described loam cake of described first, have a plurality of ribs; And

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

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 described tape cassete comprises:

, a tape;

A box body comprises a loam cake and a substrate, the width of the first of described box body is greater than the described preset width of the described receive window of described tape drive, its second portion provides a magnetic head opening that leads to described tape for described record/put head, the width of this part is slightly less than the preset width of the described window of described tape drive, thereby guaranteed described second portion is inserted the described window of described tape drive basically, described 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 the described preset width of the described loam cake of described first, have a plurality of ribs; And

First and second tape reels are installed in rotation in the described first of described box body, they are respectively around first and second rotations, one end of described tape is connected on described first tape reel, and the other end of described tape then is connected on described 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 groove that forms ridge;

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 cassette lid-body.

In Fig. 1, lid 1 comprises the insertion portion 2 and the non-insertion portion 3 that needn't 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 by decorative groove 4,5 are connected to the both sides of non-insertion main body 3a, a peripheral wall 8 is formed on the wing 6,7 and the neighboring of non-insertion main body 3a on, and a transparent window plate 10 abuts against on the window frame or recessed frame 9 that is 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 form along the vertical direction of the inside surface of this peripheral wall 8 separately.

Each stiffening rib 11 is triangular in shape basically, and strengthens the projection degree from the upper end of rib 11 gradually to its lower end, and described lower end is connected to the upside of alar part 6,7.

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

It is in order to be furnished with draw taper with respect to stiffening rib 11 demoulding portions 13 in reason that each stiffening rib 11 forms leg-of-mutton 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 consider to produce in molded back the situation of so-called indenture mark.And stiffening rib 11 ... 11 quantity and the interval between the both sides of the chest should be defined as 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 2.4 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 1/50, promptly 0.5 millimeter.In addition, be approximately the both sides that 45 ° draw taper 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 line that produces etc.Confirm, after making stiffening rib 12, on lid 1, 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 draw taper is roughly 45 °, and it is to be formed on the stiffening rib 12 with the mode identical with embodiment.

Comparatively ideally be stiffening rib 12 ... between 45 ° and 90 ° of 12 the angle of cut spans, its width and height are less than 1.0 millimeters, and but, these values are not limit by this.

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

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 record carrier 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 path.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 and stretch with recessed district 31 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 on two or dorsal area of one end, with travelling belt 35, be used for driving wheel 32 and first and second horn ring 33,34 interconnect, and 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, and this tape is wrapped on the tape supply reel 25, similarly, on the travelling belt part pressurized between the driving wheel 32 and second horn ring 34 touches tape 24 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.

As mentioned above, in Figure 10, have decorative groove 4,5 on the lid 1, molten resin flows smoothly and is subjected to the obstruction of this groove, thereby the protuberance 135 of formation metallic mold 131 ', 136 ', cause residual stress to increase, and affact the wing 6,7 and peripheral wall 8 on, the result causes the prying and the tilt phenomenon of the wing 6,7 and peripheral wall 8 easily.

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 groove that constitutes protuberance 43,44, thereby has avoided molten resin channel narrows problem, even have the protuberance 43 of formation, die cavity 42 zones of 44 groove are no exception, thereby the resin that has guaranteed fusing smoothly flows to the groove outside that forms protuberance 3,44 unimpededly.

The two sides 46,47 in recessed district 45 are roughly 45 ° of angles with the fluid level of molten resin liquid stream.Metal die 41 has a cast gate 48.

Because lid 1 has said structure, stiffening rib 11 wherein ... 11 can prevent that peripheral wall 8 from producing distortion, tilts etc., thereby guaranteed the sealing property of data capsule, 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 having disposed stiffening rib, avoided peripheral wall to produce, therefore prevented the problem of the dust intrusion box body that when cleaning, between peripheral wall and substrate, produces that distortion such as peripheral wall inclination cause.

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 draw taper on the stiffening rib, realize the demoulding that plasticity is molded 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, and other various possible changes and perfect scheme also belong in the scope of the present invention.

Claims (6)

1, a kind of tape cassete for the tape drive use, this driver has records/puts head and a tape cassete receive window, and this window has predetermined width, and described tape cassete comprises:

, a tape;

A box body, comprise a loam cake and a substrate, the width of the first of described box body is greater than the preset width of the described receive window of described tape drive, its second portion provides a magnetic head opening that leads to described tape for described record/put head, the width of this part is slightly less than the preset width of the described window of described tape drive, thereby guaranteed described second portion is inserted the requirement of the described window of described tape drive basically, described second portion and first are continuous, thereby between them, constitute an angular region at least, wherein on the madial wall of the described loam cake of described first, have a plurality of ribs; And first and second tape reel be installed in rotation in the first of described box body, they are respectively around first and second rotations, one end of described tape is connected on described first tape reel, and the other end of described tape then is connected on described second tape reel.

2, according to the tape cassete of claim 1, wherein said loam cake is formed from a resin, and described a plurality of rib has cone shape.

3, a kind of tape cassete for the tape drive use, this driver have one and record/put head and the tape cassete receive window with preset width, and described tape cassete comprises:

, a tape;

A box body comprises a loam cake and a substrate, the width of the first of described box body is greater than the described preset width of the described receive window of described tape drive, its second portion provides a magnetic head opening that leads to described tape for described record/put head, the width of this part is slightly less than the preset width of the described window of described tape drive, thereby guaranteed described second portion is inserted the described window of described tape drive basically, described 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 the described preset width of the described loam cake of described first, a plurality of ribs are housed; And

First and second tape reels are installed in rotation in the described first of described box body, they are respectively around first and second rotations, one end of described tape is connected on described first tape reel, and the other end of described tape then is connected on described second tape hub.

4, according to the tape cassete of claim 3, wherein said loam cake is to be formed from a resin, and described a plurality of rib is a cone shape.

5, according to the tape cassete of claim 3, wherein said a plurality of ribs are latticed configurations.

6, according to the tape cassete of claim 3, the width of each equals the thickness of described loam cake haply in wherein said a plurality of ribs.

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