US3591901A - Automatic lock slider for slide fasteners - Google Patents

Automatic lock slider for slide fasteners Download PDF

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Publication number
US3591901A
US3591901A US855447A US3591901DA US3591901A US 3591901 A US3591901 A US 3591901A US 855447 A US855447 A US 855447A US 3591901D A US3591901D A US 3591901DA US 3591901 A US3591901 A US 3591901A
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US
United States
Prior art keywords
wire spring
locking member
shoulders
spring locking
recited
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
Application number
US855447A
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English (en)
Inventor
Stanley G Kedzierski
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.)
Talon Inc
Original Assignee
Textron Inc
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 Textron Inc filed Critical Textron Inc
Application granted granted Critical
Publication of US3591901A publication Critical patent/US3591901A/en
Assigned to TALON, INC., A CORP. OF DE. reassignment TALON, INC., A CORP. OF DE. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: TEXTRON, INC.
Assigned to CONTINENTAL ILLINOIS NATIONAL BANK AND TRUST COMPANY, 231 SOUTH LASALLE ST., CHICAGO, IL., 60697 reassignment CONTINENTAL ILLINOIS NATIONAL BANK AND TRUST COMPANY, 231 SOUTH LASALLE ST., CHICAGO, IL., 60697 SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: TALON, INC., A CORP OF DE.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B19/00—Slide fasteners
    • A44B19/24—Details
    • A44B19/26—Sliders
    • A44B19/30—Sliders with means for locking in position
    • A44B19/306—Sliders with means for locking in position in the form of a locking spring member actuated by the pull member
    • 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.
    • Y10T24/25—Zipper or required component thereof
    • Y10T24/2561—Slider having specific configuration, construction, adaptation, or material
    • Y10T24/2566—Slider having specific configuration, construction, adaptation, or material including position locking-means attached thereto
    • Y10T24/257—Slider having specific configuration, construction, adaptation, or material including position locking-means attached thereto having surface engaging element shifted by reorientation of pull tab
    • Y10T24/2571—Resilient or spring biased element

Definitions

  • the present invention relates generally to slide fasteners and, more particularly, to an improved automatic lock slider for a slide fastener.
  • a slider employs a simplified wire spring lock member which permits a reduction of manufacturing time and cost.
  • a lock member is maintained in a central position within a slider to provide positive locking of a slide fastener.
  • an automatic lock slider for a fastener is embodied in a slider element mounted upon the fastener and having first and second support shoulders, a pull tab mounted between the shoulders, and a lock means on the slider movable between operative and inoperative positions;
  • the lock means includes a wire spring locking member having a single inclined portion adapted to be moved by the pull tab and disposed between first and second L-shaped end portions mounted on the first and second support shoulders, respectively, the first L-shaped end portion being adapted to lock the slider when the lock means is in its operative position.
  • the present invention has an additional object in that an automatic lock slider reduces fabric fraying as well as manufacturing rejections.
  • FIG. 1 is a partial elevation of a slide fastener device employing an automatic lock slider constructed in accordance with the present invention
  • FIG. 2 is an exploded perspective view of the slider element of FIG. 1;
  • FIG. 3 is a longitudinal cross section of the slider element of FIG. 2.
  • the present invention is embodied in a slide fastener indicated generally at in FIG. 1, including a pair of interengageable devices mounted on carrier tapes I2 and I4.
  • a pull tab I6 with an interconnecting link 18 having an operating member or trunnion 19 is connected to a slider, indicated generally at 20, for manually opening and closing the slide fastener 10.
  • the slider 20 includes a base plate 22 having a pair of upwardly protruding flanges 24 and 26 formed on opposing sides thereof; flanges 24 and 26 contain inwardly directed upper lips 28 and 30, respectively, which cooperate with the flanges and base plate 22 to define a longitudinally oriented Y-shaped channel 32.
  • An upwardly protruding neck member 34 is centrally formed upon the base plate 22 between leftand right-wings of Y-shaped channel 32 with the sidewalls of the neck converging along the lower portion of its front end to form an apex 36 at the throat of the Y-shaped channel and a horizontally extended ridge 38 extending over the apex.
  • Neck member 34 has a flat upper surface 40 located outside the channel containing a longitudinal groove 42 running from the rear end of the neck to a generally rectangular upright shoulder 44; a contiguous groove 46 extends from groove 42 upwardly along rear surface 48 of the shoulder and continues longitudinally along the entire length of the top surface thereof.
  • Shoulder 44 includes an inclined front surface 50 and a hole 52 passing centrally through the sides of the shoulder.
  • a second generally rectangular upright shoulder 54 is longitudinally aligned on the front of the upper surface 40 of neck member 34 and has an inclined rear surface 56 directly facing the front inclined surface 50 of shoulder 44.
  • Shoulder 54 has a groove 58, similar to groove 46 in shoulder 44, running longitudinally along its top surface and continuing down along a front surface 60 into the throat area of channel 32. As seen in FIG. 3, the height of shoulder 54 is less than that of shoulder 44 for operatively supporting a simplified locking member, to be more fully described below.
  • a planar wire spring locking member 62 is disposed within grooves 42, 46 and 58 and includes an L-shaped rear portion 64 cooperatively shaped to fit within groove 46 of shoulder 44 and an inclined central portion 66 extending from L-shaped rear portion 64 to an L-shaped front portion 68; front portion 68 is mounted within groove 58 so that an extremity 70 thereof is normally disposed in a central position within the throat of Y-shaped channel 32 to lock the slider.
  • Grooves 46 and 58 center the locking member 62, preclude horizontal movement thereof and permit vertical movement of extremity 70 to provide both effective locking and an easy release thereof.
  • a generally rectangular, hollow cover member 72 open at its lower edge is mounted upon the upper surface 40 of neck member 34 and completely encloses shoulders 44 and 54 to maintain wire spring locking member 62 in proper alignment within grooves 46 and 58.
  • the cover serves to hold firmly the L-shaped rear portion 64 of wire spring locking member 62 in its groove 46 against shoulder 44 whereby the spring self-biases the extremity 70 into the throat of the channel 32 to lock automatically the slider.
  • a long moment arm is provided for operation of the locking member.
  • Cover 72 is held in place by staking the sides thereof into shoulder 44 at points 74, the resulting depressions produced at points 74 cooperating with hole 52 to provide a secure attachment; it is noted that while staking has been illustrated, any desired manner of attaching cover 72 to the slider may be employed.
  • the sidewalls of cover member 72 each include a slot 76 aligned to permit the trunnion or operating member 19 of the connecting link 18 of pull tab 16 to pass there through in an operative position across the upper surface 40 of neck 34 between inclined surfaces 50 and 56 of shoulders 44 and 54, respectively, and redner the central inclined portion 66 of locking member 62.
  • Locking member 62 has a locked position (FIG. 3) and a released position. In such locked position, the extremity 70 of the wire spring locking member 62 is biased into the throat of channel 32 where it tends to lodge itself against one of the interengaging elements thereby preventing forces produced by the movement of the fabric upon which the fastener is mounted from opening the slider.
  • a pulling force is exerted on the pull tab 16 in a generally downward direction; this force is transmitted by operating member 19 to the slider 20 and causes movement of the operating member toward the right as viewed in FIG. 3.
  • the operating member I8 moves to the right it contacts the inclined central portion 66 of wire spring locking member 62 and the inclined rear surface 56 of shoulder 54 whereupon continued movement of the operating member 19 against inclined portion 66 and inclined surface 56 causes the extremity 70 of locking member 62 to be moved out of the channel 32 permitting the slider to move freely along the fastener.
  • Operating member 19 will continue to move to the right relative to the slider body until it engages the edge of slots 76 in the cover member 72 to transmit the pulling force to the slider, moving it down and opening the fastener.
  • locking member 62 is easily accomplished due to the cooperative action of the trunnion l9 and the inclined central portion 66 of the locking member which provides effective leverage through a long moment arm.
  • the inclined surface 56 of shoulder 54 acts as a camming surface displacing operating member 119 against the wire spring locking member 62 to increase the leverage and assure effective release of the locking action of the slider even when the pull tab 16 is pulled directly down.
  • inclined surface 50 of shoulder 44 is not essential if the particular configuration of the interengageable devices of the fastener is shaped to directly cam the extremity 70 of the spring 62 out ofa locking position within the channel 32 when the slider is moved in an upward direction, thus permitting closure of the fastener at any time without necessitating a release of the lock mechanism.
  • the automatic lock slider of the present invention has the particular advantage of a simplified construction resulting in an ease of operation heretofore unattainable in slide fasteners using filamentary stringers. Such construction assures effective locking while employing a relatively light iocking member which requires a minimal force to accomplish its release. Furthermore, the inclined central portion of the wire spring, in conjunction with the inclined surface 56 of shoulder 541-, provides increased leverage by the camming action produced upon movement of operating member 19 thereby increasing the ease in which release of the lock is attained.
  • An additional advantage of the present invention is the reduction in manufacturing costs provided by the use of wire spring material in constructing the locking member 62 and the simplified shape of the completed locking member permitted by the design of the slider neck portion.
  • An automatic lock slider for a slide fastener comprising a slider body adapted to be slidably mounted upon the fastener and having first and second support shoulders,
  • lock means on said slider body movable between operative and inoperative positions and including a wire spring locking member having a single inclined portion adapted to be moved by said pull tab and centrally disposed between first and second L-shaped end portions mounted upon said first and second support shoulders, respectively, and
  • said first L-shaped end portion adapted to lock said slider body when said lock means is in its operative position.
  • first and second support shoulders comprise a pair of upwardly protruding shoulders each having a longitudinally aligned groove therein adapted to support said first and second L- shaped end portions, respectively, of said wire spring locking member in longitudinal alignment upon said slider body and to hold said wire spring locking member in a fixed horizontal position.
  • An automatic lock slider for a slide fastener comprising a flanged base plate defining a Y-shaped channel having a throat portion,
  • a wire spring locking member movable between a locking position and a released position and having one end disposed in the groove of said one shoulder and another end disposed in the groove of said other shoulder, and
  • wire spring locking member comprises an intermediate portion partially disposed within the grooves of said pair of shoulders and two transverse end portions vertically and horizontally displaced from each other.
  • said other of said shoulders includes a groove on a front surface thereof to cooperate with said other end of said wire spring locking member whereby said extremity of said wire spring locking member is held in a centrally disposed position on said neck member.
  • said one of said shoulders includes a groove on a rear surface thereof adapted to hold one of the transverse end portions of said wire spring locking member in horizontal and rotational alignment upon said neck member whereby said wire spring locking member is maintained in an operative position on said neck member.

Landscapes

  • Slide Fasteners (AREA)
US855447A 1969-08-18 1969-08-18 Automatic lock slider for slide fasteners Expired - Lifetime US3591901A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US85544769A 1969-08-18 1969-08-18

Publications (1)

Publication Number Publication Date
US3591901A true US3591901A (en) 1971-07-13

Family

ID=25321288

Family Applications (1)

Application Number Title Priority Date Filing Date
US855447A Expired - Lifetime US3591901A (en) 1969-08-18 1969-08-18 Automatic lock slider for slide fasteners

Country Status (10)

Country Link
US (1) US3591901A (enrdf_load_stackoverflow)
BE (1) BE754854A (enrdf_load_stackoverflow)
CA (1) CA924877A (enrdf_load_stackoverflow)
CH (1) CH518072A (enrdf_load_stackoverflow)
DE (2) DE7030848U (enrdf_load_stackoverflow)
ES (1) ES382797A1 (enrdf_load_stackoverflow)
FR (1) FR2058028A5 (enrdf_load_stackoverflow)
GB (1) GB1264747A (enrdf_load_stackoverflow)
IE (1) IE34440B1 (enrdf_load_stackoverflow)
NL (1) NL7011757A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2222035A1 (enrdf_load_stackoverflow) * 1973-03-20 1974-10-18 Textron Inc
US4287646A (en) * 1978-02-23 1981-09-08 Yoshida Kogyo, K.K. Automatically locking slider for slide fastener
US4490889A (en) * 1981-04-09 1985-01-01 Yoshida Kogyo K.K. Slide fastener assembly
CN103181662A (zh) * 2011-12-29 2013-07-03 福建浔兴拉链科技股份有限公司 拉头滑块及使用该滑块的拉链头

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08322611A (ja) * 1995-05-31 1996-12-10 Ykk Kk 自動停止装置付スライドファスナー用スライダー
JP4307356B2 (ja) * 2004-10-07 2009-08-05 Ｙｋｋ株式会社 自動停止装置付スライドファスナー用スライダー

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2373523A (en) * 1942-02-05 1945-04-10 Winterhalter Martin Slider for slide fasteners
FR979306A (fr) * 1948-02-09 1951-04-25 Fermeture à curseur dissimulée

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2373523A (en) * 1942-02-05 1945-04-10 Winterhalter Martin Slider for slide fasteners
FR979306A (fr) * 1948-02-09 1951-04-25 Fermeture à curseur dissimulée

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2222035A1 (enrdf_load_stackoverflow) * 1973-03-20 1974-10-18 Textron Inc
US4287646A (en) * 1978-02-23 1981-09-08 Yoshida Kogyo, K.K. Automatically locking slider for slide fastener
US4490889A (en) * 1981-04-09 1985-01-01 Yoshida Kogyo K.K. Slide fastener assembly
CN103181662A (zh) * 2011-12-29 2013-07-03 福建浔兴拉链科技股份有限公司 拉头滑块及使用该滑块的拉链头

Also Published As

Publication number Publication date
NL7011757A (enrdf_load_stackoverflow) 1971-02-22
CH518072A (fr) 1972-01-31
IE34440B1 (en) 1975-05-14
FR2058028A5 (enrdf_load_stackoverflow) 1971-05-21
CA924877A (en) 1973-04-24
ES382797A1 (es) 1972-12-16
DE2040826A1 (de) 1972-03-02
IE34440L (en) 1971-02-18
BE754854A (fr) 1971-02-15
GB1264747A (enrdf_load_stackoverflow) 1972-02-23
DE7030848U (de) 1972-11-02

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Date Code Title Description
AS Assignment

Owner name: TALON, INC., 626 ARCH ST. MEADVILLE, PA. A CORP. O

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:TEXTRON, INC.;REEL/FRAME:003933/0130

Effective date: 19810710

AS Assignment

Owner name: CONTINENTAL ILLINOIS NATIONAL BANK AND TRUST COMPA

Free format text: SECURITY INTEREST;ASSIGNOR:TALON, INC., A CORP OF DE.;REEL/FRAME:004604/0467

Effective date: 19860827