US2599078A - Automatically locking zipper - Google Patents

Automatically locking zipper Download PDF

Info

Publication number
US2599078A
US2599078A US767426A US76742647A US2599078A US 2599078 A US2599078 A US 2599078A US 767426 A US767426 A US 767426A US 76742647 A US76742647 A US 76742647A US 2599078 A US2599078 A US 2599078A
Authority
US
United States
Prior art keywords
lock
slider
rows
zipper
locking
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
US767426A
Other languages
English (en)
Inventor
Gideon Sundback
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.)
Lightning Fasteners Ltd
Talon Inc
Original Assignee
Lightning Fasteners Ltd
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 Lightning Fasteners Ltd filed Critical Lightning Fasteners Ltd
Priority to US767426A priority Critical patent/US2599078A/en
Priority to LU29179D priority patent/LU29179A1/xx
Priority to FR970076D priority patent/FR970076A/fr
Priority to BE484293A priority patent/BE484293A/fr
Priority to DEP376D priority patent/DE820282C/de
Application granted granted Critical
Publication of US2599078A publication Critical patent/US2599078A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • A44B19/308—Sliders with means for locking in position in the form of a spring-actuated locking 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
    • Y10T24/2577—Biased by distinct spring

Definitions

  • This invention relates to automatic lock zippers.
  • Such zippers have a pair of stringers or rows of interlocking elements, collectively called chain, and a slider embracing the chain for opening and closing the zipper by movement in opposite directions along the chain.
  • the slider is automatically locked to the chain against undesired opening movement but is freely movable to close the zipper.
  • This is accomplished by an automatic lock or pawl, normally pressed against the chain by a spring and shaped to prevent movement of the slider in the opening direction, but permitting dragging or ratcheting of the pawl over the chain whenever the slider moves in the closing direction.
  • the slider has a small handl or pull tab by which it is moved in either direction, and the pull tab automatically lifts the pawl out of engagement with the chain whenever the pull is operated to open the zipper.
  • Fig. 1 is a perspective view of on form of zipper embodying my invention
  • Fig. 2 is an enlarged section on the plane 2a-2b of Fig. 1 showing the slider lock in neutral position;
  • Fig, 3 is a fragmentary section corresponding to Fig. 2 showing the slider fully locked
  • Fig. 4 is a view corresponding to Fig. 3 showing the pawl in one fully unlocked position, the position it takes when the zipper is being closed;
  • Fig. 5 is a view corresponding to Fig. 3 showing the pawl in another fully unlocked position which it takes when the zipper is being opened by the pull tab;
  • Fig. 6 shows the pawl in a third fully unlocked positionwhich it takes when released by an excessive opening force
  • Fig. 7 is a section of the zipper taken on the line 1-1 of Fig. 3;
  • the chain of the zipper has a pair of stringers 20 each consisting of a beaded fabric tape 2] to the beaded edge 22 of which is secured a row. of interlocking elements 23.
  • a slider 24 for opening and closing the zipper has the usual Y-shapedchannel or passage, the end of which is indicated at 25 in Fig. 2 and the cross section of which is indicated at 25 in Fig. 7.
  • the passage surrounds the chain.
  • the passage is" formed by an upper plate 26' of the slider, a lower plate 21 and a wedge 28. The slider, when m ved upward on the chain, that is to the left as seen in Fig.
  • the slider is moved in either direction along the chain by a pull tab or handle 29, slidably securedto' the upper plate by an elongated bail or icon 3Jfa nd so arranged that it can pull the slider from either end'.
  • a pull tab or handle 29 slidably securedto' the upper plate by an elongated bail or icon 3Jfa nd so arranged that it can pull the slider from either end'.
  • the upper plate is provided with an opening 32 (Fig. 2)
  • a look is housed under the loop 38 and arranged so that it can project through the opening32 into the channel 25.
  • the upper plate has two similar openings 32 and 36 separated by a shelf or bearing 38, as seen best in '7.
  • the locking member consists of a central shaft 43 from which depend a pair of legs 42,,4-3, projecting into the openings. The shaft fills the space between the shelf 33 and the cap or loop 39. It has an opposite pair of rounded faces 44 (Fig.
  • the shaft can also slide along the shelf 38.
  • the leg 42 forms the active locking pawl, the leg 43 serving to guide the shaft on its bearings and to prevent binding.
  • the side walls 43 (Fig. 7) and the end wall 59' (Fig. 2) of the cap form a well which confines a spring 52 which bears against a flat face 54 of the shaft, urging the shaft to the left against the concave face 45.
  • the end of the spring maybe so formed and positioned that it normally holds the lock with the pawl in the angular position shown in Fig. 2, which is the normal or neutral position of the lock.
  • the pawl in its neutral position, is inclined with respect to a line perpendicular to the channel.
  • the pawl is long enough to project slightly into the channel in this position, just enough for the point to contact an interlocking element if the slider moves in either direction.
  • the first interlocking element which contacts the locking point swings the pawl to the left, rotating the shaft clockwise about its center and bringing the pawl into the position (shown in Fig. 3) perpendicular to the channel, causing the locking point to project further into the channel between the interlocking elements.
  • the pawl In this position the pawl is stopped or held by the wall of the opening 32, in which position the lock is held by the spring 52, blocking passage of the interlocking elements through the slider, thus preventing movement of the slider to open the zipper.
  • the pull tab 29 When it is desired to open the zipper, the pull tab 29 is pulled to the right as seen in Fig. 5. This slides the shaft 49 to the right, compressing the spring. and since the locking point 55 is held by the interlocking element with which it is in contact, the lock rotates clockwise as before, inclining the pawl in the opposite direction to the line which is perpendicular to the rows of elements through the axis of the" shaft as shown inFig. 5, far enough ,to remove the locking point from the path of the'interlocking elements. This permits theslider to be slid to the right and thus to open the zipper.
  • This condition makes it possible to provide a slider in which the lock is automatically released by being moved away from the positive stop by an excessive force tending to open the zipper without the control of the pull. This is useful, for example, wherever it is desired to have the zipper open without damaging itself at the occurrence of an opening force which would destroy the tape of the zipper or damage the article to which the article is applied.
  • the component 60 is opposed by an equal force 63 effected by the wall of the opening 32. This force is in the opposite direction to the force 8!,
  • the lock will be rotated clockwise into the position of Fig. 6 and thus be withdrawn from looking position.
  • the moment of the couple, for any given opening force on the slider can be regulated within limits by determiningv the point of contact between the lock and the stop, and
  • the moment of the spring can be regulated by Since as a changing the force of the spring.
  • the point at which the safety opening of the zipper occurs can be determined when the slider is constructed.
  • a lock slider is illustrated in Fig. 8. This is constructed as previously described except that the lock has a locking surface 10 which engages a corresponding surface 12 on a relieved portion behind the stop formed by the opening 32.
  • the surface 12 is formed at an angle which will prevent its forming a point bearing for any part of the surface 10. Therefore any tendency of the interlocking element to rotate the pawl out of the perpendicular position and into unlocked position tends to produce clockwise rotation about the edge of the opening 32 at 14. Such clockwise rotation is prevented by the projecting surface lil engaging the surface 12.
  • the surface 70 is parallel to the inclined face of the locking point 55 and inclined about 45 to the axis of the pawl, and the surface 12 is inclined 45 to the rows of elements, so that 12 is parallel to the face of 56 when the pawl is perpendicular to the rows and in looking position.
  • the surface 10 does not extend toward the interlocking elements beyond the line, perpendicular to the surface 72 and passing through the point of contact between the pawl and an interlocking element. Beyond this line the projection carrying the surface 10 is preferably rounded or relieved on a radius not greater than the distance to the point of contact between the interlocking element and the pawl, so as not to bind when the pull tab, tends to unlock the slider after the manner indicated in Fig. 5.
  • the lock swings clockwise about the interlockin element and the rounded point of the projection carrying the surface 70 clears the surface '12.
  • Fig. 9 is illustrated a modified form of the invention in which the spring 52 holds a modified form of lock yieldingly against an inclined stop 90.
  • the locking pin 9! has a head 92 which has a flat side adapted to rest on the sloping surface 90.
  • the spring 52 is placed in a bore or recess 93 and rests in an annular recess 94 surrounding a positioning pin 95 on the head of the lock.
  • the spring substantially fills the bore so as to hold the head againstthe side of the bore, as well as against the inclined stop 90. Otherwise the lock of Fig. 9 operates like that of Figs. 2 to 5, but the inclined stop tends to hold the lock somewhat more positively in its neutral position whenever the slider is not locked nor being either closed or opened by the pull.
  • a zipper comprising in combination a pair of rows of interlocking elements, a slider having a passage for the rows and adapted when moved in one direction along the rows to interlock the rows to close the zipper and when moved in the opposite direction'to disengage the rows to open the zipper, a lock in the slider having a locking point at one end and a pivot shaft at the other end, a pivoting and sliding support for the shaft adapted to maintain the shaft a constant distance from the passage, resilient means for yieldingly holding the pivot shaft on said support and the lock normally in a position inclined in one direction to a line perpendicular to the rows with the locking point projecting into the path of the elements, the lock being rotatable in one sense about the axis of the pivot shaft into a position perpendicular to the rows to project the locking point further into the path of the elements, and a stop for stopping the lock in said perpendicular position the zipper including means for rotating the lock in the same sense about the stop into a position inclined in the opposite direction to the perpendicular to remove the locking
  • a zipper comprising in combination a pair of rows of interlocking elements, a slider having a passage for the elements, the passage diverging at one endrof the slider and being adapted when moved in one direction along the rows to interlock the rows to close the zipper and when moved in the opposite direction to disengage the rows to open the zipper, a lock in the slider having a locking end, the lock-being rotatably supported in the slider, resilient means yieldingly holding the lock normally positioned with its axis inclined away from av line perpendicular to the rows and pointing toward the rows and toward the convergent end of the passage and with the locking end projecting into the path of the elements, the lock being rotatable from said inclined position toward said perpendicular, line whereby the lock is adapted to be rotated to project the locking end farther into the path of the elements in response to initial uncontrolled opening movement of the slider, a pivot on the lock between the ends of the lock, a stop on the slider for the pivot for stopping the lock when substantially perpendicular to the rows to prevent
  • a zipper comprising in combination a pair of rows of interlocking elements, a slider having a passage for the'elements the passage diverging at one end of the slider and being adapted when moved in one direction along the rows to interlock the rows to close the zipper and when moved in the opposite direction to disengage the rows to open the zipper, a lock having a pivot mounted in the slider remote from the rows and having a locking end, resilient means yieldingly holding the lock normally positioned with its axis inclined away from a line perpendicular to the rows and pointing to the rows and to the convergent end of the passage and with its locking end projecting into the path of the elements, the lock being rotatable in one sense about said pivot toward the perpendicular line to project the locking end farther into the path of the elements in response to initial uncontrolled opening movement of the slider, a second pivot on the lock adjacent the rows and a stop on the slider adjacent the passage for stopping the second pivot when the lock is substantially perpendicular to the rows, the lock being rotatable in the same sense about
  • a zipper comprising in combination a pair of rows of interlocking elements, a slider havin a passage for the elements, the passage diverging at one end of the slider and being adapted when moved in one direction along the rows to interlock the rows to close the zipper and when moved in the opposite direction to disengage the rows to open the zipper, a lock in the slider having a locking end, resilient means yieldingly holding the lock normally positioned with its axis inclined awayfrom a line perpendicular to the rows and pointing toward the rows and toward the convergent end of the passage and with its locking end projecting into the path of the elements, a pivot shaft on the lock, a pivoting and sliding support for the shaft adapted to maintain the shaft a constant distance from the passage, said resilient means normally holding said pivot shaft on said support the lock being rotatable on said support from said inclined position toward said perpendicular line whereby the lock is adapted to be rotated to project the locking end farther into the path of the elements in response to initial uncontrolled opening movement of the slider, a second pivot on the
  • a zipper comprising in combination a pair of rows of interlocking elements, a slider having a passage for the elements and adapted when locking point at one end and a pivot shaft at the other end, a pivoting and sliding support for the shaft in the slider adapted to maintain theshaft a constant distance from the passage, resilient means yieldingly holding the pivot shaft on said support with the lock in a position normally inclined in one direction with respect to a line perpendicular to the rows and having the locking point projecting into the path of the elements, the lock being rotatable in one sense about the pivot support into a position perpendicular to the rows to project the'locking point farther into the path of the elements, means on the slider for stopping the lock substantially perpendicular to the rows, the lock being rotatable in the same sense about the stopping means to a position inclined in the opposite direction to the perpendicular to remove the locking point from the path of the elements.
  • a zipper comprising in combination a pair of rows of interlocking elements, a slider having a passage for the elements, the passage diverging at one end of the slider and being adapted when moved in one direction along the rows to interlock the rows to close the zipper and when moved in the opposite direction along the rows to disengage the rows to open the zipper, a locking member in the slider resilient means yieldingly holding the locking member in a position normally inclined to a line perpendicular to the rows and pointing toward the rows and toward the convergent end of the passage, a locking point on the locking member, a pivot on the locking member remote from the passage, a pivoting and sliding support on the slider for said pivot, said resilient means yieldingly holding said pivot on said support the locking member being rotatable in one direction about the pivot to move the locking member toward said perpendicular line and to move the locking point toward the center of the passage and between the interlocking elements, a bearing surface on the locking member adjacent the looking point adapted to contact an interlocking element when the locking point is so placed between the inter
  • a zipper comprising in combination a pair of rows of interlocking elements, a slider having a passage for the rows, the passage diverging at one end of the slider and being adapted when moved in one direction along the rows to interlock the rows to open the zipper and when moved in the opposite direction along the rows to disengage the rows to open the zipper, a locking member on the slider having a locking end, resilient means yieldingly holding said locking member normally positioned with its axis inclined away from a line perpendicular to the rows and pointing toward the rows and toward the convergent end of the passage and with the locking end projecting into the path of the elements, a pivot shaft on the locking member, a pivoting and sliding support for said shaft adapted to maintain the shaft a constant distance from the passage, said resilient means yieldingly holding said pivot shaft on said support the locking member being rotatable on said support toward said perpendicular line to project the locking end farther into the path of the elements in response to initial uncontrolled opening movement of the slider, a stop on the slider for stop-ping the look when

Landscapes

  • Slide Fasteners (AREA)
US767426A 1947-08-08 1947-08-08 Automatically locking zipper Expired - Lifetime US2599078A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US767426A US2599078A (en) 1947-08-08 1947-08-08 Automatically locking zipper
LU29179D LU29179A1 (lv) 1947-08-08 1948-08-07
FR970076D FR970076A (fr) 1947-08-08 1948-08-07 Curseur à verrouillage automatique pour fermetures à curseur
BE484293A BE484293A (lv) 1947-08-08 1948-08-09
DEP376D DE820282C (de) 1947-08-08 1948-11-03 Selbsttaetig sperrender Schieber fuer Reissverschluesse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US767426A US2599078A (en) 1947-08-08 1947-08-08 Automatically locking zipper

Publications (1)

Publication Number Publication Date
US2599078A true US2599078A (en) 1952-06-03

Family

ID=25079444

Family Applications (1)

Application Number Title Priority Date Filing Date
US767426A Expired - Lifetime US2599078A (en) 1947-08-08 1947-08-08 Automatically locking zipper

Country Status (5)

Country Link
US (1) US2599078A (lv)
BE (1) BE484293A (lv)
DE (1) DE820282C (lv)
FR (1) FR970076A (lv)
LU (1) LU29179A1 (lv)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060282994A1 (en) * 2005-06-14 2006-12-21 Dennis Kupperman Locking zipper glide device
US20070226908A1 (en) * 2006-03-31 2007-10-04 Hollander Home Fashions Corp. Pillow closure
US20070261170A1 (en) * 2006-03-31 2007-11-15 Hollander Home Fashions Corp. Pillow closure
US9486040B2 (en) 2013-02-07 2016-11-08 James Theobald Magnetically operated locking slider for zipper
DE102011012591B4 (de) * 2010-03-05 2018-02-08 Ykk Corporation Reißverschluss

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1274842B (de) * 1966-03-25 1968-08-08 Yoshida Kogyo Kk Sperrschieber fuer einen Reissverschluss
JPS5620973Y2 (lv) * 1976-10-13 1981-05-18

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB417781A (en) * 1933-10-23 1934-10-11 Heinrich Gutberlett Improvements in sliding-clasp fasteners
GB512643A (en) * 1938-03-10 1939-09-21 Harry Bertram Grant Improvements in or relating to sliders for sliding clasp fasteners
US2222988A (en) * 1938-08-05 1940-11-26 Talon Inc Slider for slide fasteners
US2271141A (en) * 1939-06-01 1942-01-27 Waldes Kohinoor Inc Slider for separable fasterners
US2289585A (en) * 1940-06-04 1942-07-14 Marinsky Davis Lock slider for separable fasteners
US2301792A (en) * 1941-08-12 1942-11-10 Crown Fastener Corp Slider for slide fasteners

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB417781A (en) * 1933-10-23 1934-10-11 Heinrich Gutberlett Improvements in sliding-clasp fasteners
GB512643A (en) * 1938-03-10 1939-09-21 Harry Bertram Grant Improvements in or relating to sliders for sliding clasp fasteners
US2222988A (en) * 1938-08-05 1940-11-26 Talon Inc Slider for slide fasteners
US2271141A (en) * 1939-06-01 1942-01-27 Waldes Kohinoor Inc Slider for separable fasterners
US2289585A (en) * 1940-06-04 1942-07-14 Marinsky Davis Lock slider for separable fasteners
US2301792A (en) * 1941-08-12 1942-11-10 Crown Fastener Corp Slider for slide fasteners

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060282994A1 (en) * 2005-06-14 2006-12-21 Dennis Kupperman Locking zipper glide device
US20070226908A1 (en) * 2006-03-31 2007-10-04 Hollander Home Fashions Corp. Pillow closure
US20070261170A1 (en) * 2006-03-31 2007-11-15 Hollander Home Fashions Corp. Pillow closure
DE102011012591B4 (de) * 2010-03-05 2018-02-08 Ykk Corporation Reißverschluss
US9486040B2 (en) 2013-02-07 2016-11-08 James Theobald Magnetically operated locking slider for zipper

Also Published As

Publication number Publication date
LU29179A1 (lv) 1948-10-07
BE484293A (lv) 1949-02-09
FR970076A (fr) 1950-12-29
DE820282C (de) 1951-11-08

Similar Documents

Publication Publication Date Title
US2846745A (en) Buckle
US2495176A (en) Reversible slider for slide fasteners
US2599078A (en) Automatically locking zipper
US2188620A (en) Fastener
US3018534A (en) Lock slider for zipper fastener
US2405883A (en) Reversible
US2450550A (en) Locking slider for slide fasteners
US2234939A (en) Separable fastener
US2360437A (en) Automatic lock slider for slide fasteners
US2487386A (en) Automatic lock slider
US3028647A (en) Zipper lock
US1966457A (en) Separable fastener
US3255505A (en) Sliders for separable fasteners
US3038227A (en) Reversible automatic lock slider
US2222988A (en) Slider for slide fasteners
US4041578A (en) Automatic lock slider for slide fasteners
US2554252A (en) Automatic lock slider for slide fasteners
US2588648A (en) Separable slide fastener
US2855651A (en) Sliding clasp fasteners
US2131567A (en) Reversible lock slider
US2053463A (en) Slider for fasteners
US2197690A (en) Slider for separable fasteners
US1671539A (en) Separable fastener
US3522638A (en) Slide-fastener slider with locking pawl
US2185658A (en) Slider for slide fasteners