US3837690A - Information storage articles employing resilient locking sleeves - Google Patents

Information storage articles employing resilient locking sleeves Download PDF

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Publication number
US3837690A
US3837690A US00386234A US38623473A US3837690A US 3837690 A US3837690 A US 3837690A US 00386234 A US00386234 A US 00386234A US 38623473 A US38623473 A US 38623473A US 3837690 A US3837690 A US 3837690A
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United States
Prior art keywords
fingers
axial end
end portion
extending
type
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US00386234A
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English (en)
Inventor
H Fraser
R Larson
H Rinkleib
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Priority to US00386234A priority Critical patent/US3837690A/en
Priority to AR255051A priority patent/AR205717A1/es
Priority to GB1747274A priority patent/GB1420040A/en
Priority to AU68569/74A priority patent/AU477946B2/en
Priority to ZA00743616A priority patent/ZA743616B/xx
Priority to FR7421950A priority patent/FR2240487B1/fr
Priority to IT24181/74A priority patent/IT1015212B/it
Priority to BE145933A priority patent/BE816913A/xx
Priority to CH936674A priority patent/CH572652A5/xx
Priority to JP7792374A priority patent/JPS5333056B2/ja
Priority to SE7409219A priority patent/SE399143B/xx
Priority to DE2434847A priority patent/DE2434847A1/de
Priority to NLAANVRAGE7410083,A priority patent/NL170991C/xx
Priority to NO742793A priority patent/NO143360C/no
Priority to ES1974223365U priority patent/ES223365Y/es
Priority to DK416174A priority patent/DK143189C/da
Priority to BR6452/74A priority patent/BR7406452D0/pt
Priority to CA206,388A priority patent/CA1028307A/en
Priority to FI2341/74A priority patent/FI59889C/fi
Application granted granted Critical
Publication of US3837690A publication Critical patent/US3837690A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/02—Containers; Storing means both adapted to cooperate with the recording or reproducing means
    • G11B23/04—Magazines; Cassettes for webs or filaments
    • G11B23/08—Magazines; Cassettes for webs or filaments for housing webs or filaments having two distinct ends
    • G11B23/107—Magazines; Cassettes for webs or filaments for housing webs or filaments having two distinct ends using one reel or core, one end of the record carrier coming out of the magazine or cassette
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/098—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of flexible hooks
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/17—Socket type
    • Y10T279/17411—Spring biased jaws
    • Y10T279/17487—Moving-cam actuator
    • Y10T279/17504—Threaded cam sleeve
    • Y10T279/17512—Loose jaws

Definitions

  • ABSTRACT A tape spool and cover are latched together by a tubu lar sleeve arrangement.
  • a hollow core tape spool has an inner frustro-conical camming surface adjacent an axially outwardly facing shoulder.
  • a releasable latch includes a unitary resilient sleeve inserted into the hollow core and is cammed radially inwardly for creating radial outward forces on the opposite sleeve end outside the spool.
  • a first axial end portion of the sleeve has a first type locking resilient finger extending out of the hollow core and a second type resilient finger in locking engagement with the hollow core tape spool.
  • a radially inwardly extending annular rib divides the first and second axial end portions to provide a bending moment transfer ring.
  • the slots defining the axially extending fingers extend to and preferably into the rib for providing a moment bridge for transferring the radial inward compression on the second axial end portion to a radially outwardly exerting force in the first axial end portion. It is preferred that such slots terminate on or near a common circumferential line extending around the sleeve.
  • the outer end portion of the first type of fingers includes a latching shoulder, plus a camming surface for enabling radial inward camming all first type fingers for enabling releasable engagement between the tape spool and a cylindrical COVCI'.
  • Spools for supporting magnetic media spirally wound thereon have employed various mechanisms for attaching the spool to rotatable supports and/or dust covers. Since such spools should be low cost, any such locking mechanisms should have a corresponding low cost. Further, if the mechanism is manufactured separately of the spool, the assembly of the two parts should be extremely simple and low cost.
  • Some tape-containing spools are usable with automatic apparatus.
  • Such automatic apparatus automatically engages and disengages the locking mechanisms on the spool.
  • the locking mechanisms Because of desired low cost, it is highly desirable that such locking mechanisms be manufactured using plastic molding processes employing known resilient plastic materials.
  • the locking mechanisms should be carefully designed to avoid wear. That is, when the locking mechanism engages automatic apparatus for spool support opening or closure, reducing wear minimizes the amount of debris generated during each attachment or closure. This, in turn, reduces the exposure for magnetic recording errors caused by such debris being generated in the immediate vicinity of a recording medium.
  • any locking mechanism should be self-centering not only on the spool, but also in the locking engagement portion. This centering is important for reducing vibrations when the spool is being rotated at high rotational velocities.
  • the force required to engage and disengage the locking mechanism should be carefuily controllable. Such forces should be chosen to be sufficient to minimize the amount of power required, but should be sufficiently strong to ensure that the spool of tape is always affixed to either the closure or the attached apparatus in a secure manner. These camming forces are affected by wear and tolerances of manufacture.
  • a sleeve-type insert constructed in accordance with the present invention and being particularly adaptable for insertion into a hollow core member, such as the hollow core of a tape spool, consists of a unitary cylindrical body having first and second axial end portions and consisting of resilient material.
  • the sleeve preferably, but not necessarily, includes an annular radially inwardly extending rib separating the first and second axial end portions.
  • Each axial end portion has a plurality of slots extending axially approximately from the area of the rib to the respective axial ends such that each axial end portion consists of a plurality of axially extending integrally formed resilient fingers.
  • the slots in the first and second axial end portions are circumferentially displaced such that a stress transferring bridges in the area of the rib extends between fingers in the opposite axial end portions.
  • afirst axial end portion includes a plurality of locking fingers each having a radially extending shoulder at the outward end portion, which also is the axial end of the first axial end portion.
  • a second type of axially extending fingers shorter than the first type, is disposed intermediate two of said first type of fingers.
  • the second type of finger has a radially extending latch detent for insertion into a receptacle portion of the hollow core member into which the sleeve is inserted. It is preferred that the outer end portions of the first type of fingers in the first axial end portion have all the same dimensions.
  • each two first type fingers bracketing a second type finger extend circumferentially around the outer axial end of the second type of fingers.
  • the second axial end portion has a plurality of slots ending at the rib portion immediately adjacent the first type of fingers. It is preferred that such second axial end portion slots be centrally located between adjacent slots bordering each of the first type of fingers. In one form of the invention, the slots defining each second type of finger end adjacent a broad circumferential finger of the second axial end portion. In another version of the invention, there is an additional slot extending toward the rib end portion of the second type of first axial end portion fingers.
  • the slots in the first and second axial end portions both terminate approximately along a common plane transverse to the axis of the sleeve. Hence, the termination of each slot is on a circumferential line somewhere in the area of the rib. Overlapping or underlapping the slots varies stress concentrations, preloading displacements, and load or stress transfers.
  • the invention also contemplates the combination of the above-described sleeve inserted into a special receptacle formed in the hollow core member, preferably the core member of a magnetic tape spool.
  • a core member preferably the core member of a magnetic tape spool.
  • Such core member has an open axial end having a first cylindrical end portion.
  • an annular shoulder facing such open axial end.
  • a frustro-conical cam At the radial inner end of the axial facing shoulder is a frustro-conical cam.
  • the inside diameter of the frustro-conical cam begins with a diameter greater than the outside diameter of the second axial end portion and recedes in a direction away from the open axial end to a diameter substantially smaller than the outside diameter of the sleeve.
  • the sleeve inserted with the second axial end portion, is radially compressed by the frustro-conical cam. Additionally, the hollow core member has a plurality of detents for receiving the detent members on the axial end portions of the second type of fingers. The sleeve is inserted until those detents are latched in such receptacles. The sleeve is firmly held in the hollow core member by the resilient urging of the second type of fingers by the radial compression of the second axial end portion.
  • the first type of fingers extends axially outwardly beyond the first axial end portion of the hollow core member for receiving a cover and latching same to the spool. Such first type fingers are radially inwardly urgeable against the force transmitted thereto by the fingers of the second axial end portion.
  • the arcuate surfaces of the axial end portion of the first type of fingers have a radius of curvature in accordance with a minimum of radius of the first axial end portion when being cammed radially inwardly for latching or unlatching action. This arrangement reduces wear. It is preferred that the radial extension on both the first and second types of fingers in the first axial end portion be outward.
  • the sleeve insert rib portion When inserted into the hollow core member, the sleeve insert rib portion is suspended in a free space between the axially facing shoulder and the engagement of the second type of fingers with the detent receptacles.
  • This arrangement facilitates transfer of forces in a symmetrical manner to all of the first type of fingers which facilitates the use of a cylindrical tool for simultaneously and equally radially inwardly urging all of the first type fingers away from engagement with the inner diameter of the hollow core member thereby releasing a cover or sleeve latched to the hollow core member.
  • a spool support member may also be engaged to the spool through the use of the radial shoulders on the axial end portions of the first type of fingers.
  • FIG. 1 is a diagrammatic sectional view of a stressed sleeve in one axial end portion of a hollow core member.
  • FIG. 2 is a perspective view of the stressable sleeve of the present invention.
  • FIG. 3 is an exploded simplified perspective view, partially in section, of a spool storage cartridge employing the present invention.
  • FIG. 4 is an enlarged and simplified fragmentary central cross-sectional diagrammatic view of a cartridge illustrating one aspect of the locking mechanism for the FIG. 2 illustrated cartridge in a closed and locked relationship. The sleeve is not separately shown.
  • FIG. 5 is a simplified enlarged fragmentary crosssectional diagrammatic view, similar to FIG. 4, showing a cartridge supported via a stressed sleeve.
  • FIG. 6 is a simplified enlarged fragmentary crosssectional diagrammatic view similar to FIG. 4 of a cartridge being opened.
  • FIG. 7 is a simplified partial diagrammatic showing of an improved end configuration for locking fingers on a sleeve insert.
  • Hollow core member 44 includes a hollow cylindrical axial end portion 11 with an inside diameter substantially greater than the outside diameter of cylindrical sleeve 10.
  • annular outward axial facing truncated conical annular shoulder 12 At the axial inner end of axial end portion 11 is annular outward axial facing truncated conical annular shoulder 12.
  • Axially inward of annular shoulder 12 is frustro-conical tapered ramp or cam 13.
  • Ramp 13 centers insert 10 inside hollow core member 44 and simultaneously exerts radial inward forces on all fingers 14 of the second axial end portion of sleeve 10.
  • This radial inward moment is transferred via central stress transferring section 15 to a set of axially outwardly extending locking fingers 52.
  • the transmitted forces result in fingers 52 being radially outwardly urged against the inner diameter of hollow core member 44 at its one axial end 48.
  • the same forces generated on fingers 14 are transmitted through central section or rib 15 to a plurality of sleeve retaining axially extending fingers (second type) 17.
  • Each finger 17 has a radially outwardly extending detent l9 engageable into detent receptacle or aperture 20 in axial end portion 11 of hollow core member 44.
  • Detents 19 firmly retain sleeve 10 inside hollow core member 44.
  • Each of the locking fingers 52 extends axially outwardly beyond open end 48.
  • Each finger has a radially outwardly extending locking shoulder 64 spaced from axial end 48 for receiving a tubular cover 26, later described, for locking same to the spool, which includes core member 44.
  • Cover 26 includes a camming surface which engages camming surface 62 of axial outer end portion 152 urging all of the locking fingers 52 simultaneously and symmetrically radially inward, such that the camming surface on the cover slides over surface 62 and then engages locking shoulder 64. Fingers 52 return to the radial outward position for latching the cover securely to the spool member.
  • all of the outward portions 152 of locking fingers 52 are identically formed; i.e., they have the same circumferential extent.
  • the two locking fingers 52a and 52b bracketing a second type finger 17 have a circumferentially reduced portion adjacent the second type fingers 17.
  • fingers 52a and 52b have a circumferentially enlarged portion to achieve the above-stated results.
  • all of fingers 52 are constructed as shown for fingers 52a and 52b bracketing a second type finger 17.
  • four sets of fingers 52a, 52b and second type fingers 17 constituted the first axial end portion of a sleeve.
  • Second axial end portion including fingers 14, in one constructed embodiment, had fingers of different circumferential extents.
  • First fingers 14a circumferentially bracket elongated slots 23 and 24 between two adjacent first type .or locking fingers 52.
  • the second axial end portion also has circumferentially enlarged fingers 14b with a circumferential extent bracketing second type finger 17 of the first axial end portion and the two adjacent slots 25.
  • the radial inward compression of fingers 14b not only radially outwardly urge fingers 17, respectively, but also assist in the radial out ward urging of fingers 52a and 52b, respectively. Because of differing circumferential extents between fingers 14a and 14b, it is important that the different size fingers be symmetrically disposed about the sleeve. Additionally, a slot may be provided within finger 14b as indicated by dotted line 27, which slot may have an axial extent less than the other slots within the second axial end portion. Other configurations can readily be envisioned, including some alternatives discussed later.
  • the annular rib 15 can have an axial extent as shown by dotted lines 29 in FIG. 2.
  • the slots in both the first and second axial end portions extend into the rib portion up to a common circumferential line 30 axially centrally of rib 15. This arrangement provides for good bending moment transfer between the two axial end portions. By making a slot shorter, the bending moment is reduced; that is, if the slot did not terminate in approximate vicinity of rib 15, the radial inward urging of fingers 14 in the second axial end portion would not be fully transmitted to the fingers in the first axial end portion. That is, the radial outward urging of locking fingers 52 would be reduced by shortening the slots.
  • the slots in the first and second axial end portions should terminate in the proximate vicinity of common circumferential line 30, which defines a common plane transverse to the axis of sleeve 10. It is permissible within the invention to underlap the slots to the outer axial perimeter of rib 15 such as identified by lines 29 in FIG. 2.
  • circumferential extent of fingers 14, 52, and 17 is much greater than the circumferential extent of the slots. This is a design choice to provide maximum forces being transferred from the radial inward urging of fingers 14 to the fingers 17 and 52 in the first axial end portion.
  • the axial length of fingers 14 is approximately one-half of the axial length of fingers 52.
  • the radial inward force exerted on fingers 14 by frustro-conical camming surface 13 is approximately twice as great as the radial outward urging of fingers 52 at the actual outward end portions 152.
  • fingers 17 in the first axial end portion are somewhat shorter than looking fingers 52. The result is that the radial outward urging, i.e., the locking force, on detents 19 is substantially greater than the locking force exerted on locking fingers 52.
  • locking fingers 17 have a somewhat greater axial length than second axial end portion fingers 14, the actuating fingers in the radial force locking engagement provided in the first axial end portion. This arrangement is a best mode of practicing the invention. Keeping the force on detents 19 greater than on locking fingers 52 ensures that sleeve stays secured to the hollow core even when fingers 52 are moved radially inwardly, as later described.
  • the internal surface features of hollow core member 44 cooperate with the geometric configuration of sleeve 10 to provide optimum controlled transfer of the radial inward forces on fingers 14 to radial outward forces on locking fingers 52.
  • the axial end cylindrical portion 1 1 has an inside diameter greater than the outside diameter of sleeve 10. This permits sleeve 10 to be suspended in free space inside this portion.
  • Axially outwardly facing shoulder 12 reduces the inside diameter of hollow core member 44 to a diameter less than the outside diameter of sleeve 10.
  • frustro-conical surface 13 further reduces the inside diameter for ex erting radial inward forces on fingers as sleeve 10 is inserted into member 44.
  • the axial lengths of fingers l4 and 52 are selected such that annular rib 15 is disposed in the free space within axial cylindrical end portion 11 just axially outward of shoulder 12. Rib 15 and the finger portion in juxtaposition thereto are in free space permitting free movement of the sleeve in this area for efficiently transferring radial forces from fingers 14 to fingers 52.
  • the annular space between sleeve 10 and portion 11 in the vicinity of rib l5 permits uninhibited movements for enabling the abovementioned efficient transfer of forces.
  • Rib 15 is an annular fulcrum for the transfer of the radial forces. Without rib l5, stress concentrations in the area where the fingers join about common line 30 could cause fractures with resultant decreased efficiency of energy transfer between the radially urged fingers.
  • hollow core member 44 and sleeve 10 is best used in connection with a tapecontaining cartridge 16 shown in FIG. 3.
  • a tubular cover 26 is releasably locked to core member 44 via locking fingers 52 locking shoulders 64.
  • tubular cover 26 axially slides over core 44 to engage radially enlarged base or spool flange 46 of single-flanged spool 28.
  • Cover 26 has open end 32 and a tapered and partially closed end 34. Tapered end 34 provides ease of entry and centering in a storage compartment (not shown).
  • Cover flange 36 partially closes end 34 and has locking shoulder 38 for sealing engagement with base 28 via resilient washer 40.
  • Cover portion 42 adjacent open end 32 is tapered at the inner surface to a reduced thickness.
  • Base 28 is a single flange spool including cylindrical hub or core portion 44 with spool flange 46 fixed to the hub at one end. End 48 of hub 44 opposed to flange 46 is hollow for receiving sleeve 10 having resilient locking fingers 52.
  • the hub is designed to carry a flexible wound web 54, shown in phantom, for example, in the fonn of magnetic tape, on the hub surface bounded by spool flange 46 and resilient fingers 52.
  • the face of spool flange 46 opposed to hub 44 includes a clutch surface in the form of serrations 56 circumferentially spaced around magnetically permeable disk 22. Deformable skirt 58 extends at an angle from the periphery of spool flange 46 away from hub 44.
  • FIG. 4 a segment of the cartridge with cover 26 and spool 28 locked together is diagrammatically shown in simplified cross-section.
  • sleeve 10 is shown as an integral part of hollow spool core 44, it being understood the arrangement of FIGS. 1 and 2 is used in apparatus shown in these figures.
  • Fingers 52 remain in locking contact with shoulder 38 until urged radially inwardly.
  • the resiliency and dimensions of the fingers is such that an axial force exerted between the cover and base member will not normally release the fingers 52 from locking shoulder 38.
  • the number, array, resiliency, and dimensions of the fingers also normally prevent manual release of the fingers from the shoulder.
  • Fingers 56 are arrayed in such a manner and are of such stiffness that in the absence of tool 74 (FIG. 6) they cannot normally all be depressed simultaneously manually without great difficulty. As long as one finger remains in locking contact with shoulder 38, separation of the base and cover members is not possible.
  • Cover 26 completely encloses base 28 such that no portion of the base can be readily grasped to remove the cover.
  • tapered end wall cover portion 42 frictionally engages deformable skirt 58 of spool flange 46.
  • the angle of skirt 58 and the angle of tapered wall portion 42 are such that contact between the two elements is made quickly during closure; and the seal is tight and substantially dust proof.
  • FIG. 4 also shows an annular groove 66 on the inner surface of fingers 52. This radially inwardly opening groove provides for releasable latching for engagement with detent 12 for retaining the cartridge during storage or conveyance.
  • the right side of FIG. shows, in phantom, the details of one form of detent 12.
  • a number of resilient detent fingers 68 each have a beaded tip 72 for camming engagement and disengagement with groove 66 in resilient fingers 52, as shown. Relative axial movement between cartridge 16 and detent 12 cams detent fingers 68 inwardly until the beaded tips 72 on fingers 68 seat in groove 66 to secure the cartridge.
  • Cartridge 16 is disengaged from detent 12 by pulling them apart with a force exceeding the resiliency of detent fingers 68.
  • tool 74 has annular cam follower 76 to mate annularly disposed cam surfaces 62 on fingers 52 simultaneously upon movement of tool 74 towards the cartridge.
  • Each cam surface 62 rides on the surface of cam follower 76 to inwardly urge fingers past shoulder 38 for releasing cover 26.
  • fingers 52 are in an unlocking relation to shoulder 38, and separation of the base and cover members is being initiated by the continuing axial movement of the tool to push spool 44 from cover 26.
  • two fingers 52 are shown in the radial outward position with the solid lines 79 representing the radius of curvature of sleeve from its central axis 80. This is the maximum radius of curvature.
  • the radius of curvature of the inner annular camming surface on tubular cover 26 corresponds to the maximum inward deflection of fingers 52 as from axis 81, which is substantially less than the maximum radius of curvature.
  • This arcuate cam surface, represented by dotted line 82 engages surface 62 only at the circumferential extremities 83 and 84 of all fingers 52.
  • the circumferential central portion 85 of fingers 52 initially is not engaged with the inner annular camming surface of tubular cover 26.
  • camming surface 62 is alleviated by adjusting the radius of curvature of camming surface 62 to that of dotted line 82 such that the annular inner facing camming surface of tubular cover 26 engages substantially all, if not all, the camming surface 62 of all fingers 52.
  • This substantial contiguous engagement across the circumferential extent of all surfaces 62 continues throughout the radial movements of axially outer end portions 152 thereby minimizing wear by reducing forces to a minimum across the camming surfaces.
  • the radial inward position of the two fingers 52 is indicated by dotted lines 86.
  • dotted lines 82 and 86 have arcuate portions which are concentric about axes 81 and 80, respectively.
  • Choice of materials for the base, cover, and locking mechanism of the cartridge and detent may be such as to avoid wear and generation of debris within the cartridge and the storage apparatus.
  • the various parts are constructed either of wear resistant resilient metals or plastics which do not deteriorate or generate particles upon contact and which provide sufficient stiffness to avoid manual unlocking of the cartridge. More importantly, it tends to minimize degradation (creep and fatique) with time.
  • the choice of such materials is within the skill of the art. It is preferred that sleeve 10 be molded from an acetal resin (polyacetal), such as DELRIN or CELCON materials, no limitation thereto intended.
  • a secondary embodiment allows tha slots to be axially aligned. While the preferred illustrated embodiment has better force transfer characteristics, slot and finger axial alignment permits more facile variable stress finger loading.
  • ramp or cam 13 can be axially slotted for receiving some of the fingers 14 in slots to transfer less force to fingers 52 (now aligned with some of the fingers 14) with other fingers 14 providing stronger holding forces on fingers 17. Even with offset slotting, cam 13 may have an undulating surface for variable loading fingers 52 and 17.
  • a sleeve for insertion into a hollow core member having a plurality of circumferentially displaced, radially inwardly opening latch receptacles adjacent one end, a radially inwardly extending annular shoulder disposed axially inward of said receptacles from said one end and inside the core, and an annular camming surface disposed axially inward of said annular shoulder from said one end;
  • the improved sleeve comprising: a unitary tubular body having first and second axial end portions and consisting of resilient material;
  • annular rib separating said first and second axial end portions and extending radially inwardly from both said axial end portions
  • each axial end portion having a plurality of slots axially extending proximately from said rib to the respective ends such that each said axial end portions consists of a plurality of axially extending resilient fingers;
  • said fingers being of greater circumferential extent than said slots, and the sleeve having an outside diameter greater than an inside diameter of the annular camming surface.
  • said first axial end portion having first and second types of fingers
  • said first type of fingers being locking fingers and extending proximately from said rib to an end of said first axial end portion and including radially extending shoulder means adjacent said first axial end;
  • said second type of finger being interspersed between said first type of fingers and extending axially only partially toward said first axial end and including a radially extending detent;
  • said second type of finger being symmetrically disposed circumferentially about said sleeve.
  • each said finger of the first type having an outward end portion including said radially extending shoulder of circumferentially equal dimensions and disposed about said sleeve such that said first type fingers immediately adjacent said second type fingers having a smaller circumferential extent from said detent on said first type finger to proximately along said rib and including a greater circumferential extent axially outward of said detent means on said second type finger.
  • said second axial end portion includes slots extending to proximately said rib immediate said first type fingers and including shorter axially extending slots circumferentially aligned with said second type fingers and being further from said rib than said first type finger circumferentially aligned slots.
  • said first axial end portion having first and second type fingers, said first type of fingers extending axially to the entire length of said first axial end portion and said second type of fingers extending only partially the length of said first axial end portion;
  • said second type fingers being symmetrically disposed circumferentially about said sleeve and including radially extending detents at the outer end portions;
  • said first type fingers having radially outwardly extending shoulders at their outer end portions, each circumferential extent of said first type fingers at the outer end portion being identical such that said first type fingers adjacent said second type fingers including a portion extending axially outward of said detent means;
  • said first type fingers further including a camming surface extending from said radial shoulder outward end to the radial inward side of said first type fingers for forming a camming surface for enabling urging said first type fingers radially inward for closing the slots adjacent said outward end portions of said first type fingers.
  • said outer end portions of said first type fingers having a radius on said camming surfaces circumferentially of said sleeve less than the radius of said sleeve when in its radially expanded position.
  • slots in said second end portions terminate short of but in juxtaposition to said rib, while the slots in said first end portion terminate axially inside said rib, and said first axial end portion having a greater axial extent than said second axial end portion, and said fingers in said first end portion each including a radially extending portion for locking engagement with another member;
  • first group of said first portion fingers having said radially extending shoulders at the axial outer end of said first portion, while others of said fingers have said radially extending shoulders intermediate said first radially extending shoulders and said rib.
  • the sleeve set forth in claim 1 further including a radially outwardly extending detent means and radially outwardly extending latching means on said fingers in one of said axial end portions.
  • the improved sleeve comprising:
  • a unitary cylindrical body having first and second axial end portions and consisting of resilient molded plastic type material;
  • each axial end portion having a plurality of slots axially extending from said annular portion to the respective ends such that each said axial end portion consists of a plurality of axially extending resilient fingers;
  • said first axial end portion having a greater axial extent than said second axial end portion
  • said axially extending fingers in said first axial end portion being of first and second types, a plurality of fingers of each said type, said second type fingers having a radially outward extending locking portion at the axial outward extremity of said first axial end portion, said second type finger having a radially outwardly extending detent portion axially intermediate said annular portion and said locking portions;
  • At least one first type finger being circumferentially interposed between any two of said second type fingers.
  • the improved sleeve comprising:
  • a unitary cylindrical body having first and second axial end portions and consisting of resilient material
  • each axial end portion having a plurality of slots axially extending from the respective ends substantially to a common circumferential line about said sleeve such that each said axial end portion consists of a plurality of extending resilient fingers axially extending from said common circumferential lines;
  • said first axial end portion having some fingers longer than others with each said other fingers being circumferentially interposed between two of said some fingers, each said fingers having radially extending detent portions at their respective axial outer end portions.
  • a releasable latching assembly for selective releasable engagement with an annular latch
  • a body member to be latched having an axis of latching and a concentric cylindrical cavity
  • a first portion of said cavity having a first inside diameter and including latch receptacles symmetrically disposed about the cavity;
  • a resilient tubular sleeve disposed in said cavity and having first and second axial end portions
  • said sleeve having an outside diameter less than the inside diameter of said cylindrical portion, but an outside diameter greater than the inside diameters of said frustro-conical section;
  • each axial end portion of said sleeve having a plurality of slots axially extending from said central annular portion to the respective ends of said sleeve, such that each said axial end portion consists of a plurality of axially extending resilient fingers;
  • said slots in said first axial end portion being circumferentially displaced from said slots in said second axial end portion;
  • said first axial end portion having a greater axial extent than said second axial end portion
  • said axially extending fingers in said first axial end portion being of first and second types, a plurality of such fingers of each said type, said second type fingers having a radially outwardly extending locking portion extending respectively into said receptacles in said surface of said cylindrical cavity and being symmetrically disposed circumferentially of said sleeve, each said first type of fingers extending outwardly of said cylindrical cavity and including a radial outwardly extending locking shoulder substantially parallel to a surface of said member to be latched immediately adjacent and circumferentially disposed with respect to said cylindrical cavity;
  • the arrangement being such that the radial inward urging on said fingers in said second axial fingers urges the fingers in said first axial end portion radially outwardly in a symmetrical uniform manner.
  • a releasable latching assembly for selective releasable engagement with an annular latch
  • a body member to be latched having an axis of latching and a concentric cylindrical cavity
  • first portion of said cavity having a first inside diameter and including latch receptacle means symmetrically disposed about said cavity;
  • a resilient tubular sleeve disposed in said cavity and having first and second axial end portions
  • said sleeve having an outside diameter less than the inside diameter of said cylindrical portion, but an outside diameter greater than the inside diameters of said frustro-conical section;
  • each axial end portion of said sleeve having a plurality of slots axially extending from said central annular portion to the respective ends of said sleeve, such that each said axial end portion consists of a plurality of axially extending resilient fingers;
  • the arrangement being such that the radial inward urging on said fingers in said second axial fingers urges the fingers in said first axial end portion radially outwardly in a symmetrical uniform manner.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Springs (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Casings For Electric Apparatus (AREA)
US00386234A 1973-08-06 1973-08-06 Information storage articles employing resilient locking sleeves Expired - Lifetime US3837690A (en)

Priority Applications (19)

Application Number Priority Date Filing Date Title
US00386234A US3837690A (en) 1973-08-06 1973-08-06 Information storage articles employing resilient locking sleeves
AR255051A AR205717A1 (es) 1973-08-06 1974-01-01 Cerradura de golpe para unir receptaculos portadores de datos con ayuda de un cubo hueco provisto de un plato o brida
GB1747274A GB1420040A (en) 1973-08-06 1974-04-22 Sleeve
AU68569/74A AU477946B2 (en) 1973-08-06 1974-05-03 Improved sleeve
ZA00743616A ZA743616B (en) 1973-08-06 1974-06-06 Improved sleeve
FR7421950A FR2240487B1 (enrdf_load_stackoverflow) 1973-08-06 1974-06-12
IT24181/74A IT1015212B (it) 1973-08-06 1974-06-20 Apparecchiatura per l immagazzina mento di caricatori perfezionati
BE145933A BE816913A (fr) 1973-08-06 1974-06-26 Dispositif a verrouillage utilisable notamment dans les cartouches de bande magnetique
CH936674A CH572652A5 (enrdf_load_stackoverflow) 1973-08-06 1974-07-08
JP7792374A JPS5333056B2 (enrdf_load_stackoverflow) 1973-08-06 1974-07-09
SE7409219A SE399143B (sv) 1973-08-06 1974-07-15 Fjedrande lashylsa for lasning av en bandspole till en skyddskapa i en informationslagringsutrustning med bandkassetter
DE2434847A DE2434847A1 (de) 1973-08-06 1974-07-19 Verbindungseinrichtung an einem rotationsfaehigen koerper
NLAANVRAGE7410083,A NL170991C (nl) 1973-08-06 1974-07-26 Grendelhuls voor een bandspoel voor het vasthouden van een eromheen te plaatsen beschermkap.
NO742793A NO143360C (no) 1973-08-06 1974-08-01 Fjaerende hylse for laasing av en spolekjerne til en beskyttelseskappe i en informasjonslagringsinnretning
ES1974223365U ES223365Y (es) 1973-08-06 1974-08-05 Un dispositivo de manguito perfeccionado para insercion en un miembro de nucleo hueco.
DK416174A DK143189C (da) 1973-08-06 1974-08-05 Laasearrangement til sammenlaasning af en baandspole og en over denne anbragt beskyttelseskappe
BR6452/74A BR7406452D0 (pt) 1973-08-06 1974-08-06 Luva aperfeicoada para insercao dentro de um membro de nucleo oco e conjunto de engate livravel aperfeicoado
CA206,388A CA1028307A (en) 1973-08-06 1974-08-06 Information storage articles employing resilient locking sleeves
FI2341/74A FI59889C (fi) 1973-08-06 1974-08-06 Fjaedrande laoshylsa vid minnesarrangemang foer data

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00386234A US3837690A (en) 1973-08-06 1973-08-06 Information storage articles employing resilient locking sleeves

Publications (1)

Publication Number Publication Date
US3837690A true US3837690A (en) 1974-09-24

Family

ID=23524725

Family Applications (1)

Application Number Title Priority Date Filing Date
US00386234A Expired - Lifetime US3837690A (en) 1973-08-06 1973-08-06 Information storage articles employing resilient locking sleeves

Country Status (18)

Country Link
US (1) US3837690A (enrdf_load_stackoverflow)
JP (1) JPS5333056B2 (enrdf_load_stackoverflow)
AR (1) AR205717A1 (enrdf_load_stackoverflow)
BE (1) BE816913A (enrdf_load_stackoverflow)
BR (1) BR7406452D0 (enrdf_load_stackoverflow)
CA (1) CA1028307A (enrdf_load_stackoverflow)
CH (1) CH572652A5 (enrdf_load_stackoverflow)
DE (1) DE2434847A1 (enrdf_load_stackoverflow)
DK (1) DK143189C (enrdf_load_stackoverflow)
ES (1) ES223365Y (enrdf_load_stackoverflow)
FI (1) FI59889C (enrdf_load_stackoverflow)
FR (1) FR2240487B1 (enrdf_load_stackoverflow)
GB (1) GB1420040A (enrdf_load_stackoverflow)
IT (1) IT1015212B (enrdf_load_stackoverflow)
NL (1) NL170991C (enrdf_load_stackoverflow)
NO (1) NO143360C (enrdf_load_stackoverflow)
SE (1) SE399143B (enrdf_load_stackoverflow)
ZA (1) ZA743616B (enrdf_load_stackoverflow)

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3908925A (en) * 1974-04-30 1975-09-30 Ibm Tape cassette opener
US4009845A (en) * 1975-09-24 1977-03-01 Santucci Kenneth E Unreel reinforcer for dispensing wire
US4049030A (en) * 1976-04-02 1977-09-20 Arthur Products Co. Vent tube with removable tip for filling containers
US4301878A (en) * 1979-03-27 1981-11-24 Kubota, Ltd. Computing scale with label issuing scheme
DE3430206A1 (de) * 1983-08-19 1985-03-07 GKN Automotive Components Inc., Southfield, Mich. Axiale haltevorrichtung
FR2577007A1 (fr) * 1985-02-04 1986-08-08 Commissariat Energie Atomique Dispositif de fixation d'un tube sur une plaque a tubes
US4629140A (en) * 1984-11-06 1986-12-16 Lacasse Steven B Film reel assembly
US4971265A (en) * 1987-09-04 1990-11-20 Esselte Meto International Produktions Gmbh Mandrel for coiling tape-shaped material
US5029908A (en) * 1989-01-04 1991-07-09 Legris Sa Clip for instant connection device for a fluid conduit and devices having such a clip
FR2700196A1 (fr) * 1993-01-06 1994-07-08 Parker Hannifin Rak Sa Raccord pour conduit de fluides hydrauliques ou pneumatiques, notamment pour véhicule automobile.
US5374007A (en) * 1993-01-22 1994-12-20 Ncr Corporation Ribbon supply apparatus
US5440439A (en) * 1992-05-01 1995-08-08 Minnesota Mining And Manufacturing Company Cassette screw bosses having ribbed surfaces
US5779449A (en) * 1996-04-15 1998-07-14 Ansimag Inc. Separable, multipartite impeller assembly for centrifugal pumps
US5895203A (en) * 1996-04-15 1999-04-20 Ansimag Incorporated Centrifugal pump having separable, multipartite impeller assembly
EP1217624A3 (de) * 2000-12-13 2002-09-18 EMTEC Magnetics GmbH Transportsicherungselement für Datenkassetten, Datenspeicherkassettenstapel mit Transportsicherungselementen sowie Verfahren dazu
WO2002089139A1 (en) * 2001-04-26 2002-11-07 International Business Machines Corporation Apparatus and method for stabilizing a data tape cartridge for transport
US20050023838A1 (en) * 2003-06-25 2005-02-03 Schlack Richard E. Sliding panel latch
US6936058B2 (en) 2000-10-18 2005-08-30 Nmt Medical, Inc. Over-the-wire interlock attachment/detachment mechanism
WO2005108266A1 (en) * 2004-05-04 2005-11-17 Zih Corp. Apparatus for centering media on a spindle
US20080102413A1 (en) * 2005-01-28 2008-05-01 Thompson Leo E Thermally Insulating Liner for In-Container Vitrification
US20090036877A1 (en) * 2007-08-01 2009-02-05 Boston Scientific Scimed, Inc. Spring detach joint for delivering a detachable implantable device
EP2036845A2 (en) 2007-09-17 2009-03-18 Avery Dennison Corporation Mounting assembly and method of loading and/or unloading rolls
CN103359553A (zh) * 2013-06-27 2013-10-23 江苏中新资源集团有限公司 一种新型纺织机纱线筒
US20140116246A1 (en) * 2011-04-20 2014-05-01 Novo Nordisk Healthcare Ag Piston rod anchoring
CN105905701A (zh) * 2016-05-20 2016-08-31 南通富之岛寝具发展有限公司 一种双层纺织纱筒
US11387600B2 (en) * 2018-04-23 2022-07-12 Neutrik Ag Plug part of a plug-in connection
US20220325811A1 (en) * 2019-09-01 2022-10-13 Serdar Plastik Sanayi Ve Ticaret Anonim Sirketi Prv-pressure relief valve

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2373713A1 (fr) * 1976-12-08 1978-07-07 Seima Dispositif de fixation d'un corps cylindrique sur une fourrure plastique particulierement adapte a la fixation des allume-cigares sur vehicules automobiles
JPS59162079A (ja) * 1983-03-04 1984-09-12 Seiko Epson Corp インクリボンカセツト
DE3472144D1 (en) * 1983-05-12 1988-07-21 Robert Magid Dismountable structure
JPH0685242B2 (ja) * 1985-05-23 1994-10-26 ソニー株式会社 リ−ル台
DE102017211808A1 (de) * 2017-07-11 2019-01-17 Ifm Electronic Gmbh Kabelverschraubung und Steckverbinder mit einer Kabelverschraubung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US747493A (en) * 1901-11-01 1903-12-22 Stephen W Wallace Swivel-coupling.
US2727761A (en) * 1951-10-27 1955-12-20 Hughes Tool Co Couplers for fluid-conducting conduits
US3152815A (en) * 1963-06-03 1964-10-13 Barragato Achille Robert Intra vehicle mechanical connector
US3671050A (en) * 1969-03-24 1972-06-20 Bofors Ab Chucks
US3724882A (en) * 1971-05-10 1973-04-03 Ford Motor Co Tube-to-hose connection

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US747493A (en) * 1901-11-01 1903-12-22 Stephen W Wallace Swivel-coupling.
US2727761A (en) * 1951-10-27 1955-12-20 Hughes Tool Co Couplers for fluid-conducting conduits
US3152815A (en) * 1963-06-03 1964-10-13 Barragato Achille Robert Intra vehicle mechanical connector
US3671050A (en) * 1969-03-24 1972-06-20 Bofors Ab Chucks
US3724882A (en) * 1971-05-10 1973-04-03 Ford Motor Co Tube-to-hose connection

Cited By (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3908925A (en) * 1974-04-30 1975-09-30 Ibm Tape cassette opener
US4009845A (en) * 1975-09-24 1977-03-01 Santucci Kenneth E Unreel reinforcer for dispensing wire
US4049030A (en) * 1976-04-02 1977-09-20 Arthur Products Co. Vent tube with removable tip for filling containers
US4301878A (en) * 1979-03-27 1981-11-24 Kubota, Ltd. Computing scale with label issuing scheme
DE3430206A1 (de) * 1983-08-19 1985-03-07 GKN Automotive Components Inc., Southfield, Mich. Axiale haltevorrichtung
US4629140A (en) * 1984-11-06 1986-12-16 Lacasse Steven B Film reel assembly
EP0192524A1 (fr) * 1985-02-04 1986-08-27 Commissariat A L'energie Atomique Dispositif de fixation d'un tube sur une plaque à tubes
FR2577007A1 (fr) * 1985-02-04 1986-08-08 Commissariat Energie Atomique Dispositif de fixation d'un tube sur une plaque a tubes
US4971265A (en) * 1987-09-04 1990-11-20 Esselte Meto International Produktions Gmbh Mandrel for coiling tape-shaped material
US5029908A (en) * 1989-01-04 1991-07-09 Legris Sa Clip for instant connection device for a fluid conduit and devices having such a clip
US5440439A (en) * 1992-05-01 1995-08-08 Minnesota Mining And Manufacturing Company Cassette screw bosses having ribbed surfaces
FR2700196A1 (fr) * 1993-01-06 1994-07-08 Parker Hannifin Rak Sa Raccord pour conduit de fluides hydrauliques ou pneumatiques, notamment pour véhicule automobile.
US5374007A (en) * 1993-01-22 1994-12-20 Ncr Corporation Ribbon supply apparatus
US5779449A (en) * 1996-04-15 1998-07-14 Ansimag Inc. Separable, multipartite impeller assembly for centrifugal pumps
US5895203A (en) * 1996-04-15 1999-04-20 Ansimag Incorporated Centrifugal pump having separable, multipartite impeller assembly
US6936058B2 (en) 2000-10-18 2005-08-30 Nmt Medical, Inc. Over-the-wire interlock attachment/detachment mechanism
US9463006B2 (en) 2000-10-18 2016-10-11 W.L. Gore & Associates, Inc. Over-the-wire interlock attachment/detachment mechanism
US8398694B2 (en) 2000-10-18 2013-03-19 W.L. Gore & Associates, Inc. Over-the-wire interlock attachment/detachment mechanism
EP1217624A3 (de) * 2000-12-13 2002-09-18 EMTEC Magnetics GmbH Transportsicherungselement für Datenkassetten, Datenspeicherkassettenstapel mit Transportsicherungselementen sowie Verfahren dazu
WO2002089139A1 (en) * 2001-04-26 2002-11-07 International Business Machines Corporation Apparatus and method for stabilizing a data tape cartridge for transport
US7201407B2 (en) 2003-06-25 2007-04-10 Southco, Inc. Sliding panel latch
US20050023838A1 (en) * 2003-06-25 2005-02-03 Schlack Richard E. Sliding panel latch
US20050258301A1 (en) * 2004-05-04 2005-11-24 Zih Corporation Apparatus for centering media on a spindle
WO2005108266A1 (en) * 2004-05-04 2005-11-17 Zih Corp. Apparatus for centering media on a spindle
US20080102413A1 (en) * 2005-01-28 2008-05-01 Thompson Leo E Thermally Insulating Liner for In-Container Vitrification
US20090036877A1 (en) * 2007-08-01 2009-02-05 Boston Scientific Scimed, Inc. Spring detach joint for delivering a detachable implantable device
US9155649B2 (en) * 2007-08-01 2015-10-13 Boston Scientific Scimed, Inc. Spring detach joint for delivering a detachable implantable device
US8500773B2 (en) * 2007-08-01 2013-08-06 Boston Scientific Scimed, Inc. Spring detach joint for delivering a detachable implantable device
US20130317594A1 (en) * 2007-08-01 2013-11-28 Christopher Nardone Spring detach joint for delivering a detachable implantable device
US8568046B2 (en) 2007-09-17 2013-10-29 Avery Dennison Corporation Mounting assembly and method of loading and/or unloading rolls
US20090072073A1 (en) * 2007-09-17 2009-03-19 Campbell Donald A Mounting assembly and method of loading and/or unloading rolls
EP2036845A2 (en) 2007-09-17 2009-03-18 Avery Dennison Corporation Mounting assembly and method of loading and/or unloading rolls
US20140116246A1 (en) * 2011-04-20 2014-05-01 Novo Nordisk Healthcare Ag Piston rod anchoring
CN103359553A (zh) * 2013-06-27 2013-10-23 江苏中新资源集团有限公司 一种新型纺织机纱线筒
CN105905701A (zh) * 2016-05-20 2016-08-31 南通富之岛寝具发展有限公司 一种双层纺织纱筒
US11387600B2 (en) * 2018-04-23 2022-07-12 Neutrik Ag Plug part of a plug-in connection
US20220325811A1 (en) * 2019-09-01 2022-10-13 Serdar Plastik Sanayi Ve Ticaret Anonim Sirketi Prv-pressure relief valve
US11940055B2 (en) * 2019-09-01 2024-03-26 Serdar Plastik Sanayi Ve Ticaret Anonim PRV-pressure relief valve

Also Published As

Publication number Publication date
FI234174A7 (enrdf_load_stackoverflow) 1975-02-07
BE816913A (fr) 1974-10-16
SE7409219L (enrdf_load_stackoverflow) 1975-02-07
CA1028307A (en) 1978-03-21
FI59889B (fi) 1981-06-30
GB1420040A (en) 1976-01-07
ES223365Y (es) 1977-04-16
NL170991C (nl) 1983-01-17
CH572652A5 (enrdf_load_stackoverflow) 1976-02-13
NO143360C (no) 1981-01-21
DE2434847A1 (de) 1975-07-10
AR205717A1 (es) 1976-05-31
JPS5040105A (enrdf_load_stackoverflow) 1975-04-12
FR2240487B1 (enrdf_load_stackoverflow) 1976-06-25
DK143189C (da) 1981-11-16
DE2434847B2 (enrdf_load_stackoverflow) 1978-10-05
DK143189B (da) 1981-07-13
NO143360B (no) 1980-10-13
SE399143B (sv) 1978-01-30
IT1015212B (it) 1977-05-10
FI59889C (fi) 1981-10-12
JPS5333056B2 (enrdf_load_stackoverflow) 1978-09-12
DE2434847C3 (enrdf_load_stackoverflow) 1979-05-31
ES223365U (es) 1976-12-16
BR7406452D0 (pt) 1975-08-26
NO742793L (enrdf_load_stackoverflow) 1975-03-03
DK416174A (enrdf_load_stackoverflow) 1975-04-07
FR2240487A1 (enrdf_load_stackoverflow) 1975-03-07
ZA743616B (en) 1976-01-28
NL170991B (nl) 1982-08-16
NL7410083A (nl) 1975-02-10
AU6856974A (en) 1975-11-06

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