CN1179835A - Closure with cable strain relief - Google Patents
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- CN1179835A CN1179835A CN 96192953 CN96192953A CN1179835A CN 1179835 A CN1179835 A CN 1179835A CN 96192953 CN96192953 CN 96192953 CN 96192953 A CN96192953 A CN 96192953A CN 1179835 A CN1179835 A CN 1179835A
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Abstract
A closure with improved cable strain relief, having a body with a closed end and an open end, a tubular base having first and second ends with the open end of the body releasably secured to the first end of the base, and a strain relief member attached to the second end of the base. The strain relief member is composed entirely of non-metallic components, and includes a plate having cutouts , each of the cutouts having a wall and an inner surface along the wall, there being a plurality of gripping teeth along each inner surface, and each wall having at least one channel therein with entry and exit slots. The plate advantageously has a plurality of outer surfaces shaped to fit snugly with an inner surface of the second end of the base, and flanges located at each outer surface for attachment to an edge of the second end of the base. A mounting fixture may be attached to the plate, adapted to receive an optical fiber storage tray.
Description
Background of invention
1. the field of the invention
The present invention relates generally to a kind of for the cable that uses in the telecommunication provides the shell of mechanical protection and storage, particularly a kind of ground case that is used for optical fiber, tagblock and connector, and this case has the improved strain relief that cable is fixed to case.
2. the introduction of prior art
In telecommunications engineering, usually need the end of two cables is coupled together, to prolong cable system, tell other cable, or repair impaired cable.Usually use shell to protect the junction, this shell can be arranged in the air, or directly embedding or be arranged on the ground or at underground (inserting hole or inspecting hole).This shell often is two types, the series connection or the butt joint in a kind of.In the optical cable of butt joint, some shell is designed to dome-shaped, that is housing generally is elongated, has a blind end and an openend.United States Patent (USP) the 4th, 927, No. 227, the 5th, 222, No. 183, the 5th, 249, No. 253 and the 5th, 278, No. 933, and among the PCT application GB93/00157 some this structures have been described.
These cases use various clips, screw rod, frenulum etc. that cable is fixed near the openend of case.See United States Patent (USP) the 5th, 097, No. 529, the 5th, 280, No. 556 and the 5th, 288, No. 946 and PCT application US93/05742, GB93/01120 and GB93/01942.These parts are to providing strain relief by external cable relative to the cable stress that case moves generation.Axially spurred or promotion, knot or crooked cable must not pass to this motion cable cover(ing) opening in case.Yet structure of the prior art seldom is applicable to optical cable, because they comprise the metal parts with sharp edges, they may damage the fiber of exposure and their coating.These structures also need many annexes, thereby have increased the cost of case, and also need special instrument to install sometimes.The use of many interconnected annexes has also additionally increased the set-up time.
Cable termination uses the shielding joint connector in some prior aries, so that utilize the other attached cable sleeve pipe of metal tape, and provides the electrical continuity across the ground connection sheath.These connectors generally have the outer clamping element that an interior clamping element and that is installed in the cable sleeve inboard is caught the cable cover(ing) outside surface, and a screw rod or other device, so that force two clamping elements together sheath to be clipped in the middle.For example, see United States Patent (USP) the 3rd, 787, No. 797, the 4th, 895, No. 525 and the 5th, 097, No. 529, No. the 4th, 231,181, PCT application US94/04198 and Deutsche Bundespatent.These structures are not suitable for realizing again being used for the integrality of the cable cover(ing) of optical cable and copper cash, because they can not suitably handle the strength member that can see in fiber optic cables, such as metal wire or aramid fibre.Yet, have can allow more convenient from copper cash shielding in conjunction with will being very useful in conjunction with the connector of conversion to the fiber shielding.
In above-mentioned several structures, such as the fiber optic storage dish of patching panel by strain relief or over body case supporting or fixing.Storage disks generally includes the guide wall that makes fiber keep minimum bending radius.At above-mentioned the 4th, 927, No. 227, the 5th, 222, No. 183 and the 5th, in 249, No. 253 patents, and United States Patent (USP) the 5th, 323, No. 480 and the 5th, 363, in No. 466, some patching panels that are superimposed together in storage process are hinged on the shared base plate with the ladder form.United States Patent (USP) the 5th, 071, No. 220 and PCT application US94/04232 has disclosed the tandem case, and they have the dish that is hinged on by this way on the shared base plate.At United States Patent (USP) the 5th, 323, in No. 478, dish is superimposed together by hinged band.These articulated structures still allow fiber to move between adjacent patching panel, thereby knot can occur when the rising dish, cause the microbend loss in the fiber.And because step-like geometry, they can not make the space obtain best utilization yet.
The fiber that is directed between dish usually by spiral sleeve pipe or cylindrical tube protection, is subjected to mechanical damage and hinders the minimum bending radius of the bending of fiber less than it to prevent fiber.Cylindrical tube and considerable time of screw winding Guan Yaoyong install, this be because, for cylindrical tube, fiber must pass through this pipe, and for spiral sleeve, overcoat must manual be coiled on the fiber, very long as fruit fiber, this may be difficult.When using spiral sleeve, when parcel, also be easy to clamped fibers.Fiber of the prior art passes pipe and does nothing especially aspect the ribbon-like fibre excessive distortion preventing.
Several patching panels that disclose in above-mentioned patent use the tagblock support of the many tagblock parts of supporting.Also can be referring to United States Patent (USP) the 4th, 793, No. 681, the 4th, 840, No. 449 and the 4th, 854, No. 661.These holding devices can directly be molded on the panel surface, and as United States Patent (USP) the 5th, 074, No. 635 disclosed.The tagblock socket can be fixed on the dish with being disassembled, and it has with pliable and tough cantilever latch form carries out the holding device that interlock is installed, and sees United States Patent (USP) the 4th, 489, and No. 830, the 4th, 679, No. 896 and the 5th, 375, No. 185.If many parts are arranged in adjacent groove, owing to form the moving and set up tolerance on fit of material of holding device, these breech locks are not always caught the tagblock part securely.The tagblock socket repeatedly and long-time use also may cause dying down of keeper.From all these problems, particularly, preferably provide a kind of optical fiber case to overcome above-mentioned restriction with suitable part with the relevant problem of using for fiber optic cables of case.
Brief summary of the invention
The invention provides a kind of case, this case has improved cable strain release member, what it was total comprises that one has the slender bodies of a blind end and an open end, one has the tubulose bottom of first end and second end, the device and one of first end is connected in the strain relief of bottom second end bottom releasedly the open end of slender bodies being fixed to, strain relief is made up of non-metal workpiece fully, it comprises that one wherein has breach to form the plate of cable aperture, each breach has a wall and along the inside surface of this wall, along each inside surface a plurality of teeth of stinging are arranged, have a passage in each wall at least with import and outlet.A cable is fixed on a cable tie in the breach and passes passage and pass import and outlet.Advantageously plate has a plurality of protrusions that can be connected in the usefulness of bottom second end margin with the outside surface of the second end inside surface secure fit of bottom and the confession that is positioned at each outside surface.One sectional fixture can be connected on the plate, and it is suitable for receiving optical fiber storage disks (optical fiber storage tray).Plate, wall, sectional fixture and protrusion can be integrally formed by injection molding thermoplastic shape polymkeric substance.
Brief description of drawings
By understanding the present invention better, wherein referring to following accompanying drawing:
Fig. 1 is the stereographic map of a fiber dome case one embodiment of the present invention, has two cables to enter this case;
Fig. 2 is the parts explosion of case shown in Figure 1;
Fig. 3 is the stereographic map that is used for a strain relief embodiment of the case shown in Fig. 1 and 2;
Fig. 4 is the parts explosion of shielding of the present invention in conjunction with the strain connector;
Fig. 5 is mounted in shielding shown in Figure 4 on the cable in conjunction with the stereographic map of strain connector;
Fig. 6 is the stereographic map of the case among Fig. 1 and 2, and it has described transition disc;
Fig. 7 is the stereographic map that is used for one section division formula fiber guide tube end of the present invention;
Fig. 8 is the stereographic map of the case among Fig. 1 and 2, and it has shown two splicing dishes on the transition disc that is fixed among Fig. 6;
Fig. 9 is the stereographic map that is similar to Fig. 8, but it has shown that one remains on the locational patching panel of middle turnover;
Figure 10 A-10C is the stereographic map that is used for the tagblock socket of replacement of the present invention.
The explanation of preferred embodiment
Referring now to accompanying drawing,, particularly referring to Fig. 1 and 2, it shows an embodiment of case 10 of the present invention.Though this case is specially adapted to fiber optic cables, described here and claimed many features a small amount of change or immovable situation under use in also can be in other purposes, such as copper cash or concentric cable.Embodiment disclosed herein generally can use under the occasion by fiber in loop, comprises base, housing, hand hole, strand's fixture or electrode.These purposes can comprise the case that uses for the fiber drop on the video node in composite fibre/coax network (fiber drop), at the fiber in roadside or at the wiring case or the fiber drop case of indoor fiber use.
Referring to Fig. 3, strain relief 18 of the present invention has been used the structure of a novelty below, and it provides strain relief for the cable that enters case 10, and can carry out simple fast the installation.Strain relief 18 comprises a plate 34, and it has some openings, roughly is the U type, forms all cable aperture 36, and allows cable to be installed on the strain relief 18 from side direction, that is, do not need to make cable to pass a hole.This plate has some outside surfaces 38 between two adjacent holes 36, and they are identical with the shape of bottom 14 inside surfaces, so strain relief 18 can partly be installed in the bottom 14, and it inside surface and surface 38 between secure fit.38 series of flanges that form or protrusion 40 block around the lower limb of bottom 14 surfacewise, so that solid connects.Plate 34 also has sectional fixture 42, so that admittance dish, back plate, terminal block etc., and its supporting and store each fiber (or lead) and relevant interconnect device.In described embodiment, sectional fixture 42 is generally perpendicular to plate 34 and extends, and has a slot, so that be received in tang or tab on the dish.This slot can be bent, or provides other slot in order to fix more securely.
The part of the inside surface in hole is provided with the outstanding or tooth 44 of several rows, and their nip cable sleeve or fabricated materials are so that catch cable more firmly.Near these teeth, 36 inside surface has two to be used to hold cable tie 48 (seeing Fig. 2 and 6) along the hole, so that the import of further attached cable or notch 46 and two outlet notches 50 that supply frenulum to use.Relevant a pair of import and export 46 are connected by the bootstrap passage that is formed in 36 walls of hole with 50.Can provide more notches for other frenulum usefulness, perhaps have only one, but two are considered to best.This structure allows in three easy steps most cable to be quick installed on the strain relief 18.At first, make cable tie 48 pass notch 46 and drag it, until there being enough length to extend through outlet notch 50.Then, if necessary, by with a suitable fabricated material, will pack together at clamped position such as vinyl tape, making cable is that strain relief is got ready.At last, when cable is positioned at 36 li in a hole, utilize a pliers or a cable tie rifle to tighten frenulum 48 firmly.After all cables were so fixing, with strain relief 18 bottom 14 of packing into, wherein, protrusion 40 was stuck in the lower limb of bottom 14 firmly.Can use one such as the end seal of making by foamed material, enter with waterproof.
In addition, by being directly connected on the supporting member that is installed on the anchor clamps 42, can further cable sleeve be fixed in the case 10, this can use traditional clamp device, and comprising to provide electrical continuity those devices across the ground connection sheath.If strength member (such as heavy wire or high tenacity aramid fibers) is provided in addition for cable, so, the improved shielding shown in the Figure 4 and 5 can be used to fix these strength members in conjunction with strain connector (shield bond strainconnector) 52.Connector 52 uses two traditional clamping elements 54 and 56 to fix cable sleeve 58.Interior clamping element 56 has a pin or screw rod 60, and it is passed in the hole 62 on the outer clamping element 54.Two clamping elements 54 and 56 have many tang or tooth 64, so that clamp sleeve pipe 58.A series of tab clamping element 56 upper ends, that comprise a center prong 66 or prongs of being formed at match with complementary prong 68.
The improvement of connector 52 is to be equipped with two additional parts 70 and 72, and they are used for extending the shielding combination, and strain relief is provided for cable strength member 74.Shielding has three holes 76,78 and 80 in conjunction with extension 70.Hole 76 is formed on the narrow end 82 of extension 70, and assembling accept during connector 52 screw rod 60 (narrow end 82 be inserted in clamping element 54 and outside between the clamping element 56).The prong 66 on the clamping element 56 is accepted in hole 78, and prong 66 is used to together extension 70 added regularly in company with hole 76 and is connected on clamping element 54 and 56.Hole 80 is suitable for accepting to be formed at extending another screw rod 84 on the clamping plate 72, strength member 74 can be fixed between plate 72 and the extension 70 thus.When extension 70 being added when being connected on clamping element 54 and 56,84 screw rods that extend along the direction identical with screw rod 60 can directly be fixed on the supporting member (or sectional fixture) in the case 10.Be formed at flange 86 on clamping plate 72 ends by reliable braking being provided and can further stablizing this connection with the frictional fit of the coboundary 88 of extension 70.The side 90 of clamping plate 72 also is bent and forms flange, and they similarly mesh with the side of extension 70.Clamping plate 72 can have two recesses, makes this plate of strength member bending process backward and in this recess, for other strain relief, also can provide other flange, for example on the narrow of extension 70, so that the tinsel of about beam bending.Clamping plate 72 and extension 70 preferably use the metal material such as aldary to make, and for example brass preferably has tin coating.
Connector 52 has some advantages.At first, it can be used for the strength member of any kind of, for example wire or aramid fibre (aramid fiber).Its not crooked or distortion (for example, due to thermal cycle) of proof strength part is because they are to carry out work near the cable cover(ing) opening.This feature is remarkable especially when being used for optical fiber.Connector 52 can be connected dissimilar existing shielding joint connectors, so that shield combination from the copper cash shielding in conjunction with being transformed into fiber.Because it stops strength member near ferrule openings, therefore, it can be isolated with the fiber controller of 10 li of cases easily.At last, because it is similar to copper cash shielding joint connector of the prior art, therefore for the skilled person, the conversion from the copper cash to the fiber will be very easily.
Referring again to Fig. 2, the inner frame of case 10 can adopt various forms, but preferably comprise a back card/back board or transition disc 92 and one or a few patching panel 94, patching panel 94 respectively has cover plate 96 and one or several tagblock socket 98, so that admit the tagblock 100 that is connecting many optical fiber 102.Term " tagblock " usually relates to the permanent connection between two transmission lines, and different with " connector " that comprise the device that can be fixed, separate, fix (repeating if desired) usually.These terms should not explained like this, promptly use restrictive implication here, yet the present invention can similarly be used for the device and the provisional device that is connected of permanent connection.
Though only drawn two patching panels 94, in the embodiment of big case 10, also can use more patching panel 94.Transition disc 92 is preferably referring to Fig. 6, and it is elongated, at one end has a stationary fixture 104, can removably be connected with the sectional fixture 42 on the strain relief 18.Transition disc 92 has base plate 106, is formed with two cylinders or bobbin 108 on it, so that admit the reserve piece of optical fiber wire turn, such as the dedicated fiber of not using (connection) on this position.Another arcuate walls 110 passes pipe (fiber breakout tube) 112 with a fiber and guides in all patching panels 94.Bobbin 108 and wall 110 make optical fiber keep the bending radius of a minimum.Teat 114 can be used to make fiber to keep onboard.If enough positions are arranged in dome body 12, the separator tube fiber can be wound on the periphery of plate, and fixes with cable tie.For single pipe, this pipe ends at import and fixes with cable tie at this, and loose fibres is stored in 92 li of transition discs.For special-purpose ribbon-like fibre, store any winding that to eliminate belt in 8 font modes.Transition disc 92 preferably has enough degree of depth to hold multiple intersection belt.One foam block can be placed dish 92 rear side, in the cylinder that forms at molded upper bobbin 108, so that opening case, promptly unloading dome body 12 and support plate when flatly stretching plate.Another piece foam can be installed around the free end or the precalculated position in the blind end of dome body 12 of dish such as annular foams, so that the ability of vibration proof and external impact is provided.
Fig. 7 has described a kind of division formula pipe 116 of novelty, and it can be used to guide fiber from transition disc 92 to patching panel 94, or from a patching panel to another patching panel.Identical with goods of the prior art, fiber guide pipe 116 can prevent that fiber is subjected to mechanical damage, prevents fiber bending extremely less than its minimum bending radius.With make cylindrical tube or screw winding is different, pipe 116 is particularly suitable for ribbon-like fibre; Article 12, fabric strip fitly is stacked on the inboard that xsect is a rectangle, and this shape can make the belt distortion hardly.In addition, by the threaded off seam of using interlocking promptly to form by vertical spline 118 that extends along the total length of seam and complementary groove 120, can be with fiber being installed than making the faster mode of cylindrical tube or screw winding.Spline 118 is extended or one-tenth mushroom-shaped at its top, and groove 120 has the zone of a reduced width, so that provide a dovetail groove or clamping to cooperate, but the material of pipe 116 has enough elasticity (such as EPDM/ polypropylene mixture), with the groove 120 that allows wall to form, allow spline 118 to enter groove 120 fully thereby can expand, and along its joint seal pipe 116.No matter use which type of pipe, it can move below the pivotal point of plate easily, so that allow fiber freely to move, and can not be stuck at any turning point place, and can make them lax to minimum stress state.
Referring now to Fig. 8 and 9,, preferably, the patching panel 94 roughly shape and size with transition disc 92 is identical, and has similar structure, comprises the arcuate walls 122 that guides fiber, keeps the teat 124 of fiber and the guide groove 126 that about bundle fiber passes pipe.Patching panel 94 preferably also has enough degree of depth to hold multiple intersection belt.Guide groove 126 can have the clamping function, so that (or use with cable tie) fixing tube.Patching panel 94 also has one or several filling area or recess 128 of admitting tagblock socket 98.One intermediate plate 130 can be set on transition disc 92,, and similar intermediate plate 132 can be set on the patching panel 94 so that releasedly adjacent patching panel 94 is fixed on the storage location.The bonding jumper 134 that is formed at patching panel 94 sides helps the neatly superimposed of plate.Transition disc 92 and patching panel 94 are preferably made with the thermoplastic polymer such as polycarbonate of injection moldable.When using other thermoplastic component recited above (dome body 12, bottom 14 and strain relief 18), have metal parts anything but and be exposed in the case, this storage and metal sheathed cable for insulated cable is desirable.Connector 52 can wrap up with vinyl tape, thereby does not have the metal of exposure.
Use injection molding material also to allow linkwork with transition disc 92 and patching panel 94 integrally formed plates.Specifically, make pivot pin 136 and 138 be formed at the upper surface of transition disc, and similarly pivot pin 140 and 142 is formed at the upper surface of patching panel 94.These pins cooperations are installed in the sleeve that is positioned at accordingly on patching panel 94 lower surfaces.Because these pins and sleeve shaped are formed on the same end of all plates, so they can be (inclinations) that can reach and do not need the fiber twisting together and be directed around this end.Sleeve has the outer wall with irregularly shaped or pallet, so that plate is biased into respect to the position that stores 60 ° of (straight) inclined position, as shown in Figure 9.Pivot pin is socketed in the socket, and this socket has an erose inside surface identical with sleeve outer wall.This feature allows freely to reach fiber in the plate below the top with hand, and integrally moulded pin allows the plate pivot and needn't knot or disconnection enter and leave the fiber of plate.For mobile patching panel 94 backward, it is alignd, or straight ground transition disc 92 relatively with other plate, can be by two buttons 144 so that locking mechanism discharge.
Some novelties, be used for tagblock socket 98 of the present invention shown in Figure 10 A-10C.Though socket 98 is suitable for admitting tagblock fusion or machinery, for discrete or banded fiber usefulness, they are equally applicable to admit such as similar optical element such as coupling mechanism, separation vessel and attenuator.Socket 98a shown in Figure 10 A can use with the tagblock of quality fusion, it comprises a base plate or backing plate 146, backing plate 146 has and depression 128 corresponding shape roughly that is formed on the patching panel 94, and in preferred embodiment, it is rectangle or parallelogram.The lug 148 that is formed at backing plate 146 ends be formed at patching panel 94 on the corresponding breach of shape cooperate so that socket 98a is remained on 128 li of depressions.Other means also can be provided, backing plate be installed onboard such as pressure-sensitive adhesive.Socket 98a has many finger pieces or support 150a, owing to their position forms the jack or the groove of series of parallel, so that admit each tagblock part.Support 150a is staggered, so that butted line piece part provides the multiple spot load, they are preferably made by resilient material, such as natural or synthetic rubber, polyurethane, EPDM (or itself and polyacrylic mixture), neoprene or nitrile rubber.Each support has flange formed thereon and hook 152, along the hook of the given side of tagblock part alternately towards reverse direction; Like this, shown in embodiment in, provide three supports in each side of tagblock part, given part both ends are by catching towards unidirectional two hooks, and catch the central part of part towards rightabout the 3rd hook.
Figure 10 B has described another tagblock socket 98b, and it is applicable to discrete mechanical tagblock, such as FIBRLOK (trade mark of 3M company) tagblock 154.Support 150b is similar to support 150a, though they are thinner than support 150a, and its hook is unconspicuous.In Figure 10 C, tagblock socket 98c is suitable for using with discrete fusion tagblock element 156, and the xsect of its support 150c almost is leg-of-mutton, and following corner does not form the hook shape.The fusion tagblock of two layer scatterings can be stacked in the groove of socket 98c, makes its capabilities double, shown in embodiment in can place 12 elements.
The present invention has eliminated tagblock socket of the prior art increases release areas for mobile rubber needs, and avoided and the relevant problem of setting up tolerance on fit of these release areas of elimination, reduced the overall dimension of socket thus, strengthen and balance act on maintenance energy on the tagblock socket.This obtains by the support that is staggered is provided, and these supports are pliable and tough, has in the hardness of 30 Shore A in the 50 Shore D scopes the preferably hardness in 60-80 Shore A scope, preferably about 70 Xiao A hardness.
Though described the present invention with reference to specific embodiment, this description does not mean that the viewpoint of available constraints retrains.For those skilled in the art, after having read description of the invention, the many improvement of described embodiment and the embodiment of replacement of the present invention will be clear that.For example, all parts not only can use the dome case, also can use the axial type case.Therefore, can expect, under the situation that does not break away from the spirit and scope of the present invention that limit by appended claims, can make this improvement.
Claims (20)
1. an attached cable and the goods of strain relief are provided for this cable, it comprises that one has a breach at least to hold the plate of cable, described breach has a wall and along the inside surface of described wall, has a passage in the described wall at least, first opening and second opening are arranged in the described inside surface, and described opening leads to described passage and can be used to hold a cable tie through described passage.
2. goods as claimed in claim 1 is characterized in that, the described wall of described plate and described breach all is made of nonmetallic materials.
3. goods as claimed in claim 1 is characterized in that also comprising the sectional fixture that is installed in described plate and is used for holding a supporting member.
4. goods as claimed in claim 1 is characterized in that also comprising a plurality of teeth that form along the described inside surface of described breach, with the cable sleeve of nipping securely.
5. goods as claimed in claim 1 is characterized in that, described plate also has the outside surface with the inside surface secure fit of a bottom.
6. goods as claimed in claim 1 is characterized in that, described breach leads to a side of described plate.
7. goods as claimed in claim 2 is characterized in that, described plate and wall are integrally formed by an injection molding thermoplastic polymer.
8. goods as claimed in claim 3 is characterized in that, described sectional fixture and described plate are integrally formed, and perpendicular basically, and it has a slot that is received in the tab on the dish.
9. goods as claimed in claim 5, it is characterized in that also comprising be positioned at described outside surface so that be installed to the protrusion device of bottom margin.
10. goods as claimed in claim 8 is characterized in that described plate, wall and sectional fixture are integrally formed by injection molding thermoplastic polymer.
11. goods as claimed in claim 10 is characterized in that, described plate has the outside surface that is shaped to the inside surface secure fit of bottom.
12. fix two or more cables and provide the goods of strain relief to these cables for one kind, it comprises:
One has the bottom part that open end and is positioned at the edge of described open end; And
One is connected in the strain relief of described bottom part, and described strain relief comprises
One plate, it has: a plurality of breach, each breach lead to a side of described strain relief, and its size can be held one of all cables; And a plurality of its shapes can with the outside surface of the inside surface secure fit of the described open end of described bottom part, described outside surface between adjacent breach, and
Be positioned at each described outside surface, with the device on the described edge that described plate is connected to described bottom part.
13. goods as claimed in claim 12 is characterized in that, described coupling arrangement comprises a plurality of protrusions, has one on each described outside surface, to be used for forming secure fit with the described edge of described bottom part.
14. goods as claimed in claim 12 is characterized in that, described bottom part, described plate and described coupling arrangement all are made of nonmetallic materials.
15. goods as claimed in claim 12, it is characterized in that, each described breach has a wall and an inside surface along described wall, has a passage in the described wall at least, form first notch and second notch in the described inside surface, described notch leads to described passage, and receivability is through the cable tie of described passage.
16. goods as claimed in claim 12 is characterized in that also comprising that one is connected the sectional fixture on the described plate, it extends perpendicular to described plate and is applicable to that admitting fiber optic storage dish, described sectional fixture to have holds the slot that coils tab.
17. goods as claimed in claim 14 is characterized in that, described plate and described coupling arrangement are integrally formed by the thermoplastic polymer of injection moldable.
18. goods as claimed in claim 15 is characterized in that it also comprises a plurality of teeth that form along the described inside surface of described breach, so that bite the sleeve pipe of cable regularly.
19. goods as claimed in claim 18, it is characterized in that it comprises that also one is connected the sectional fixture on the described plate, it is perpendicular to described plate extension and be applicable to admittance fiber optic storage dish, described sectional fixture has and holds the slot that coils tab, and described plate, described coupling arrangement and described sectional fixture are all integrally formed by a kind of thermoplastic polymer of injection moldable.
20. a case that is used to splice fiber optic cables, it comprises:
Slender bodies with a blind end and an open end;
Tubulose bottom with first end and second end;
Can unload be described slender bodies the device that open end is fixed to described first end of described bottom;
One is connected in the strain relief of described second end of described bottom, described strain relief all is made up of non-metal workpiece, it comprises that one wherein has the plate of a plurality of breach, the size of each breach can be admitted a cable in all cables, described each breach has a wall and an inside surface along described wall, have a plurality of teeth of stinging along each described inside surface, has a passage in each described wall at least, have import and the outlet that is formed in the described inside surface for each described passage, described plate also have a plurality of its shapes can with the outside surface of the inside surface secure fit of described second end of described bottom, the protrusion device is positioned at each described outside surface to be connected to described second end of described bottom;
At least one cable tie, a cable is fixed in described strain relief in one of all described breach, described cable tie passes one of all described passage, and passes and relevant import and the outlet of a described passage;
One sectional fixture is connected in described strain relief, with admittance fiber optic storage dish, and
One pre-stretching, extension pipe in the folded around of described second end of described strain relief and described bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96192953 CN1179835A (en) | 1995-03-31 | 1996-02-23 | Closure with cable strain relief |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/414,189 | 1995-03-31 | ||
| CN 96192953 CN1179835A (en) | 1995-03-31 | 1996-02-23 | Closure with cable strain relief |
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| Publication Number | Publication Date |
|---|---|
| CN1179835A true CN1179835A (en) | 1998-04-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96192953 Pending CN1179835A (en) | 1995-03-31 | 1996-02-23 | Closure with cable strain relief |
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| Country | Link |
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| CN (1) | CN1179835A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104570243A (en) * | 2013-10-28 | 2015-04-29 | 海思光电子有限公司 | Cable jacket |
| CN104704411A (en) * | 2012-10-02 | 2015-06-10 | 3M创新有限公司 | Optical fibre distribution enclosure |
| CN108445591A (en) * | 2017-02-16 | 2018-08-24 | 住友电气工业株式会社 | Optical transceiver |
-
1996
- 1996-02-23 CN CN 96192953 patent/CN1179835A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104704411A (en) * | 2012-10-02 | 2015-06-10 | 3M创新有限公司 | Optical fibre distribution enclosure |
| CN104704411B (en) * | 2012-10-02 | 2018-07-27 | 3M创新有限公司 | Optical fiber distribution box |
| CN104570243A (en) * | 2013-10-28 | 2015-04-29 | 海思光电子有限公司 | Cable jacket |
| CN108445591A (en) * | 2017-02-16 | 2018-08-24 | 住友电气工业株式会社 | Optical transceiver |
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