US3769661A - Fastening device - Google Patents

Fastening device Download PDF

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Publication number
US3769661A
US3769661A US00132332A US3769661DA US3769661A US 3769661 A US3769661 A US 3769661A US 00132332 A US00132332 A US 00132332A US 3769661D A US3769661D A US 3769661DA US 3769661 A US3769661 A US 3769661A
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United States
Prior art keywords
fastener
spring
heads
anchoring portion
flanges
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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US00132332A
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English (en)
Inventor
S Bengtsson
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Individual
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Individual
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Publication date
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Publication of US3769661A publication Critical patent/US3769661A/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H15/00—Tents or canopies, in general
    • E04H15/32—Parts, components, construction details, accessories, interior equipment, specially adapted for tents, e.g. guy-line equipment, skirts, thresholds
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S24/00—Buckles, buttons, clasps
    • Y10S24/17—Multiflex axial
    • 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
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/45—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock]
    • Y10T24/45005—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock] with third detached member completing interlock [e.g., hook type]
    • Y10T24/45099—Resilient element [e.g., snap type]

Definitions

  • the new spring-fastener comprises two equal and resilient fastening heads which are fixedly interconnected and project in opposite directions, the spring-fastener having an anchoring portion positioned half-way between said heads each of which at opposite sides of said portion extend from a neck with smaller diameter than the largest diameter of the heads for optional and releasable connection by any of the fastening heads to an annular securing member.
  • an anchoring portion positioned half-way between said heads each of which at opposite sides of said portion extend from a neck with smaller diameter than the largest diameter of the heads for optional and releasable connection by any of the fastening heads to an annular securing member.
  • the invention has for its object to eliminate these difficulties, the subject matter of the invention being a spring-fastener which particularly but not exclusively is intended to be.used for said purpose.
  • the invention also has for its object to provide a spring-fastener for said purpose which is simple in construction, efficient in operation and cheap in manufacturing.
  • FIG. 1 shows an axial section of one half of the spring-fastener
  • FIG. 2 shows an endview of the same
  • FIG. 3 shows an axial section of a spring-fastener composed of two halves thereof shown in FIGS. 1 and 2 interconnecting two layers of cloth or portions of a layer of cloth;
  • FIG. 4 is a side-elevation of a second embodiment of the spring-fastener
  • FIG. 5 is an axial section of the spring-fastener of FIG. 4 inserted and anchored in an annular securing or anchoring member or eyelet;
  • FIG. 6 is a plan view of the border portion of a cloth with a spring fastener according to FIGS. 4 and 5 inserted and anchored in an eyelet secured to the edges ofa hole in the cloth, said portion having a second eyelet without any spring-fastener inserted therein;
  • FIG. 7 is an axial section of a spring-fastener according to a third embodiment
  • FIG. 8 is a view corresponding to FIG. 6 and showing a spring-fastener according to FIG. 7 inserted in one of two eyelets;
  • FIGS. 9 and 10 are sectional views illustrating the manner of connecting this third embodiment with an anchoring eyelet
  • FIGS. 11 and 12 are a side elevation and an endview respectively of a spring-fastener according to a fourth embodiment.
  • FIG. 13 is a side elevation of a fifth embodiment.
  • the first embodiment illustrated in FIGS. 1 and 3, comprises two hollow heads 10 of the spring-fastener, said heads having a circular cross-sectional shape and projecting each from a base plate 11.
  • the heads 10 have slots 12 disposed in axial planes and merge in the base plate via a neck portion formed by a peripheral or circumferential groove 13.
  • the slots 12 are four in number and, since the fastener is made from a resilient material, preferably plastic, the portions 14 between the slots form tongues which are in radial direction resiliently bendable inwardly towards the axial centerline of the head from the position shown in the drawings.
  • the base plate 11 has a central hole 15 and a peripheral or circumferential groove 16, the bottom of which in axial section forms an arc such as a quadrant.
  • FIGS. 1 and 2 Two parts of the form shown by FIGS. 1 and 2 are combined with the bases 11 hearing against each other so that the two baseplates form the anchoring portion of the fastener and may be connected onto an annular securing member, grommet or eyelet 18 made, for example, from brass or other suitable metal.
  • the base plates of said two parts are interconnected by securing means such as a rivet 19 through the holes 15.
  • securing means such as a rivet 19
  • the grooves 16 from each side engage with the eyelet 18.
  • This connection of the fastener with the cloth 17 is provided to be permanent.
  • the spring-fastener may then be easily and optionally connected with a second annular securing member or eyelet 20 in a second cloth 21.
  • the interconnection of the layers of cloth is effected by inserting the head in question against the spring action of the tongues 14 in the but owing to the fact that the fastener has two heads the fastener may be used in a quite analogous manner when the border of the cloth 17 is to be kept under the border of the cloth 21.
  • the heads 10 of the spring-fastener constitute integral portions of the same body made from resilient material such as suitable plastic, said body being hollow and broadly speaking cylindrical.
  • the axial middle portion of this body is externally provided with a peripheral or circumferential groove 16 extending all round the body, and both heads have axially disposed slots 12 in suitable member, according to the drawings three slots in each head, and positioned mutually at equal angular distances.
  • the slots of the one head are angularly displaced in relation to the slots of the second head and extend along more than half the axial length of the cylindrical plastic body.
  • the tongues 14 of the heads but also the middle or anchoring portion of the body will be resilient in radial direction so that said portion with utilization of the resilient of the fastener may be pushed into the substantially rigid eyelet IS-serving as an attachment for the springfastener.
  • the inserted fastener In order to secure "the inserted fastener in its position, it is formed with an internal offset or flange 22 which is so positioned that a plug 23 can be pressed into the cylindrical inner space of the fastener and bear against the flange 22.
  • the plug thus secured in the fastener is positioned radially inside the groove 16 or the eyelet 18 respectively and prevents inward yielding of the anchoring portion of the fastener.
  • the plug is held in position due to the resiliency of the material but may, if desired, be fixed by glue or other fastening means in its position.
  • FIGS. 7 and 8 differs from the one just described in that the middle or anchoring portion of the hollow fastener is substantially nonresilient by the provision ofa partition halfway between the fastener heads, said partition being formed integrally with the fastener.
  • the opening of the eyelet 18 prior to the fastening procedure is great enough for narrowly inserting the fastener into it so that its groove 16 will be located inside said groove.
  • the eyelet is compressed, crimped or flattened by the aid ofa suitable tool in such a manner that the inner diameter is sufficiently reduced so as to clamp the fastener in its position in the groove 16 as shown by FIG. 10.
  • each head 10 of the spring-fastener has one slot 12 only and is divided in two resilient tongues 14 widening towards the inner end.
  • FIG. 13 is made in one piece forming a body of a softer and more resilient material than that of the embodiments described, said material being by preference a rubberlike plastic.
  • Said body may be solid and have the shape ofa solid of revolution.
  • Like the other embodiments and body has two fastener heads projecting each in opposite axial directions from a corresponding neck 13.
  • said body At the middle of its axial length said body has a substantially cylindrical anchoring portion with somewhat longer diameter than that of the necks l3 ancl forming the bottom of the circumferential groove 16 for the reception of the annular securing member or eyelet 18.
  • said groove 16 is limited by two spaced flanges 25, each of which by a frusto-conical portion 26 merging in the adjacent neck 13.
  • the fastener or body is to be mounted in its annular securing member 18, the one or the other head 10 and the adjacent flange 25 is pushed through said securing member 18 in which operation a certain axial pressure is required for elastic deformation of the head and a higher pressure is required for bending said flange enough to push it through the securing member 18.
  • This bending of the flange 25 is facilitated by the edge-action exerted .by the conical surface 26in co-operation with the securing member 18 which may be of a substantially rigid material, preferably metal.
  • the flange 25 When the flange has passed through the securing member 18, the flange 25 resumes its position shown in the drawing, in which the annular member 18 is locked between side surfaces 27 of the flanges 25, said side surfaces facing toward one another and being substantially perpendicular to the axis of the body or possibly having a slightly concave shape.
  • a suitable material for the spring-fastener according to the embodiments shown in FIGS. l-12 may be a plastic having the trademark DELRIN, or a suitable metal.
  • a plastic material with the trademark DESMOPAN may be used. In both cases, other suitable plastic materials may be used.
  • a spring fastener for permanent connection to a first substantially rigid annular securing member carried by a first layer of fabric'and for detachable connection with a second substantially rigid annular securing member of the same internal size carried by a second layer of fabric and to be disposed at either side of said first layer, said spring fastener comprising:
  • an anchoring portion fixedly interconnecting said inner flanges and having a circumferential groove therebetween defined by said inner flanges to form a third neck at the axial center of the fastener receptive of said first annular securing member, said anchoring portion being less resilient than said heads and having a maximum diameter no greater than said inner flanges.
  • a spring fastener according to claim 1 in which both of said inner flanges will permit said first annular securing member to pass thereover for the reception of said first annular securing member around said third neck.
  • a spring fastener according to claim 1 in which all of said flanges are of the same diameter.
  • a spring fastener according to claim 1 in which 5.
  • a spring fastener according to claim 6 in which said anchoring portion includes an annular flange axially offset from the center, and a separate plug axially aligned with the groove in said anchoring portion.
  • each said head and one-half of said anchoring portion comprise two equal separate parts, said heads being hollow and slotted, the anchoring portions being apertured, and a securing member insertable through either head and extending through said apertures for access by a locking tool.
  • a spring fastener as claimed in claim 1 the fastener having the shape of a solid of revolution, said inner flanges being elastic and the sides of said flanges facing in opposite axial directions being conical and tapering each to the adjacent neck, and the sides of the flanges facing toward one another being substantially perpendicular to the axis of the solid of revolution.
  • a spring-fastener as claimed in claim 1 having securing means, each of the fastening heads via its neck merging in a plate and the two plates of the fastening heads each having a central hole for said securing means so as to form together said anchoring portion.
  • each fastening head having at least one axial slot and the position of the slot of the one head being angularly displaced in relation to the slot of the second head.
  • a spring-fastener as claimed in claim 1 the slots of the heads extending through more than half the axial length of the spring-fastener.
  • a spring-fastener as claimed in claim 12 including a plug insertable in the hollow spring-fastener for preventing inward springing 'of the anchoring portion, and for locking the spring-fastener to the annular securing member after its insertion into said annular member.
  • each head having an axial slot widening toward said anchoring portion.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Dowels (AREA)
US00132332A 1970-04-13 1971-04-08 Fastening device Expired - Lifetime US3769661A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE05027/70A SE332281B (no) 1970-04-13 1970-04-13

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US3769661A true US3769661A (en) 1973-11-06

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US (1) US3769661A (no)
NO (1) NO124056B (no)
SE (1) SE332281B (no)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4017945A (en) * 1974-09-28 1977-04-19 Firma Schaeffer-Homberg Gmbh Fastener for pockets, cases or the like
US4076106A (en) * 1976-10-19 1978-02-28 Goodyear Aerospace Corporation Snap fasteners for brake disk wear plates
JPS61144808U (no) * 1985-02-28 1986-09-06
WO1989002230A1 (en) * 1987-09-18 1989-03-23 Nemazi John E Snap fastener
US6199248B1 (en) * 1998-05-20 2001-03-13 Ykk Corporation Fastening device with tape, method of manufacturing the same and product to which the fastening device is attached
US20050269340A1 (en) * 2004-06-02 2005-12-08 Chuan Lee C Locking device for a toolbox
US20110162575A1 (en) * 2010-01-07 2011-07-07 David Jahnz Methods and Apparatus for Seating an Annulus within an Annular Groove
US20180214786A1 (en) * 2017-01-27 2018-08-02 Traxart Toys LLC Interactive Construction Toy System

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US867929A (en) * 1907-05-29 1907-10-08 Mills Woven Cartridge Belt Co Snap-fastener.
US928113A (en) * 1908-08-14 1909-07-13 Zoe Fleming Dunlap Umbrella.
US1760267A (en) * 1926-01-09 1930-05-27 United Carr Fastener Corp Upholstery installation
US2236496A (en) * 1937-11-18 1941-04-01 Palnut Company Inc Condenser clamp
US2885822A (en) * 1956-06-29 1959-05-12 Richard A Onanian Construction set
US2990596A (en) * 1956-10-03 1961-07-04 Aerotec Ind Inc Disconnect for the supply lines from an aircraft to a pilot
US3120971A (en) * 1960-07-08 1964-02-11 Bengtsson Sigurd Walter Locking device
US3214900A (en) * 1962-03-16 1965-11-02 Coro Inc Beaded strand and connector therefor
US3357292A (en) * 1965-02-23 1967-12-12 Douglas R Falkenberg Two-part threadless fastener

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US867929A (en) * 1907-05-29 1907-10-08 Mills Woven Cartridge Belt Co Snap-fastener.
US928113A (en) * 1908-08-14 1909-07-13 Zoe Fleming Dunlap Umbrella.
US1760267A (en) * 1926-01-09 1930-05-27 United Carr Fastener Corp Upholstery installation
US2236496A (en) * 1937-11-18 1941-04-01 Palnut Company Inc Condenser clamp
US2885822A (en) * 1956-06-29 1959-05-12 Richard A Onanian Construction set
US2990596A (en) * 1956-10-03 1961-07-04 Aerotec Ind Inc Disconnect for the supply lines from an aircraft to a pilot
US3120971A (en) * 1960-07-08 1964-02-11 Bengtsson Sigurd Walter Locking device
US3214900A (en) * 1962-03-16 1965-11-02 Coro Inc Beaded strand and connector therefor
US3357292A (en) * 1965-02-23 1967-12-12 Douglas R Falkenberg Two-part threadless fastener

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4017945A (en) * 1974-09-28 1977-04-19 Firma Schaeffer-Homberg Gmbh Fastener for pockets, cases or the like
US4076106A (en) * 1976-10-19 1978-02-28 Goodyear Aerospace Corporation Snap fasteners for brake disk wear plates
JPS61144808U (no) * 1985-02-28 1986-09-06
WO1989002230A1 (en) * 1987-09-18 1989-03-23 Nemazi John E Snap fastener
US5050279A (en) * 1987-09-18 1991-09-24 Snap Fast Industries Snap fastener
US6199248B1 (en) * 1998-05-20 2001-03-13 Ykk Corporation Fastening device with tape, method of manufacturing the same and product to which the fastening device is attached
US6596106B2 (en) * 1998-05-20 2003-07-22 Ykk Corporation Fastening device with tape, method of manufacturing the same and product to which the fastening device is attached
US20050269340A1 (en) * 2004-06-02 2005-12-08 Chuan Lee C Locking device for a toolbox
US20110162575A1 (en) * 2010-01-07 2011-07-07 David Jahnz Methods and Apparatus for Seating an Annulus within an Annular Groove
US20180214786A1 (en) * 2017-01-27 2018-08-02 Traxart Toys LLC Interactive Construction Toy System
US10682580B2 (en) * 2017-01-27 2020-06-16 Traxart Toys LLC Interactive construction toy system

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Publication number Publication date
SE332281B (no) 1971-02-01
NO124056B (no) 1972-02-28

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