US3378894A - Slider for zip-fasteners - Google Patents

Slider for zip-fasteners Download PDF

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Publication number
US3378894A
US3378894A US552343A US55234366A US3378894A US 3378894 A US3378894 A US 3378894A US 552343 A US552343 A US 552343A US 55234366 A US55234366 A US 55234366A US 3378894 A US3378894 A US 3378894A
Authority
US
United States
Prior art keywords
slide
zip
spring
tab
bracket
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
US552343A
Other languages
English (en)
Inventor
Bernasconi Pietro
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.)
METALLO SA
Original Assignee
METALLO SA
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 METALLO SA filed Critical METALLO SA
Application granted granted Critical
Publication of US3378894A publication Critical patent/US3378894A/en
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
    • 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

  • ABSTRACT F THE DISCLOSURE A slide for zip-fasteners with a locking spring which passes with one angled end through a slot of the slide and engages between the teeth of the zip-fastener to lock the same in position, the slide being slidably accommoda-ted in a C-shaped bracket of double T section having a movable pulling tab.
  • the locking spring extends along the upper surface, through a slot in the joined end, and along the lower surface terminating in a lower angled end which is engageable by a stop on the bracket for limiting the movement of the slide.
  • the spring is actuated by a transverse pin on the bracket engaging an obtuse angle adjacent the angled end.
  • Zip-fasteners with locking devices are already known, such devices providing, for example, that the pulling of the operating tab (or drawer) of the zip-fasteners causes the toothed edges of the zipper to become engaged or disengaged ⁇ respectively and left in any desired position.
  • the drawer which is provided with a projection which engages in the teeth of the Zipper may become worn out by continuous use and yet be unable to be replaced.
  • Zip-fasteners are also known which are provided with one or more elastic means l(springs) which engage in the teeth of the zipper itself.
  • the slides of such zip-fasteners cannot be disassembled and therefore, if either the elastic means or the pulling tab is broken, the whole device becomes unserviceable.
  • the present invention is intended to eliminate the above-mentioned inconveniences and relates to a slide for zip-fasteners provided with an automatic spring-operated locking device, both the spring and the pulling tab being easily replaceable.
  • FIGURE 1 shows the slide, according to the invention, in an enlarged lateral view, with the locking device shown ice in the position in which the toothed edges of the zipper are locked.
  • FIGURE 2 is a view from above of the slide shown in FIG. 1.
  • FIGURES 3 and 4 show, in a lateral view, the slide in the positions for opening and for closing the toothed edges of the zipper respectively.
  • FIGURE 5 is a vertical section A-A of FIGURE 1.
  • the pulling device comprises a tab or drawer 1, 'which slides along a bracket 2 which has a double T section and the shape of a C.
  • the said tab 1 can travel along the circumference of the bracket 2 and, as a result of this, one can apply the slide, according to the invention, and the pulling device thereof, to garments and other objects which are reversible, for example double-faced windproof jackets, due to the fact that both the opening and the closing of the zip-fastener can be carried out from both sides of the zipper.
  • the slide 3 which has two covering surfaces 4 and 5, joined to each other at 9 and provided with two longitudinal projections 6, 7 and 6', 7'; these longitudinal projections 6, '7 and 6', 7', which act as a guide and a joint piece respectively, engage in their respective grooves 8, 8.
  • the bracket 2 is slidable longitudinally on slide 3.
  • a groove 10 (FIG. 2) into which a locking spring 11 is inserted, constructed of a curved metal wire, one angled end 12 of which is anchored in a slot 13 (FIG. 2) vertically across the two covering surfaces 4, 5 While the other angled end 14 is lodged in a slit 1-5 in the upper covering surface; the said angled end 14 engaging itself in the toothed edges of the zipper underneath it (not shown) thus prevents the movement of the slide 3.
  • the spring 11 is bent so as to form an obtuse angle rwhich corresponds i-n extent to the portion 4a of the upper covering surface 4 which separates the end of the groove 10 from the slit 15.
  • a pin 17 which forms part of the inside rib 18 of the bracket 2, while from the opposite part and in correspondence with the covering surface 5, a stop 19 is provided yon the rib 18 for the end 12 of the spring.
  • the bracket 2 by means of the tab 1, is subjected to a pulling movement, the small pin 17 pushes upwards either one or the other sloping side of the angularly bent portion 16 of the spring 11, so that the angled end 14 frees the toothed edges of the zipper (not illustrated) and the slide 3l is able to move, in this way bringing about the normal opening and closing of the zip-fastener.
  • the small pin 17 is pushed back to its middle, idle position by one of the said sloping sides of the bent portion 16 of the spring 11 and thus the angled end 14 is able once again to engage itself in the toothed edges of the zipper.
  • the small pin 17 thus carries out two functions: rst, it lifts up the spring 11 from the locking position (FIG. l) and, by pushing against one or the other side of the elastic means, allows the slide 3 to be shifted by means of the bracket 2 and the tab 1; in the second place, the small pin 17, with the assistance of the angled spring, limits the travel of the bracket 2, which cannot slip olf the slide, there being also the holding effect of the stop 19 which comes up against the end 12 of the spring 11.
  • the principal characteristic of the slide 3, according to the invention, lies in the fact that it is possible to take its pulling device to pieces with a view to replacing any of the parts which may get broken or worn out.
  • the said pulling device can be slid off the body of the zip-fastener and then the spring 11 can be removed from the said slot 13.
  • the pulling device can be easily separated into its two parts, since the tab 1 will slide round on the inside rib 1S and thus come away from the C-shaped bracket 2.
  • To re-assemble it it is necessary first to insert the tab 1 on the bracket 2 and then one inserts the spring 11 in the slot 13, and slides the longitudinal projections 6, 7, and 6', 7 into the guide grooves 8, 8'. Lastly the spring 11 is turned and lifted so that its angled end 14 penetrates into the slit 15 of the slide 3.
  • a slider for zip-fasteners comprising a C-shaped bracket of double T section with an inside rib and two opposed ends slightly projecting on each side,
  • a slide having an upper and a lower covering surface joined to each other and each provided with two longitudinal projections acting respectively as a guide and a joint piece
  • bracket being longitudinally slidable on said covering surfaces and actuating said spring
  • the locking spring has a portion bent at an obtuse angle adjacent said upper angled end and a pin is located in and extends transversely across said obtuse angle, said pin being secured to said inside rib of said C-shaped bracket, so that when a pull is exerted on said bracket by means of said pulling tab the said pin will urge against one side or the other of said obtuse angle of said locking spring to cause the upper angled end of the spring to be disengaged from the toothed edges of the zipper and leave the slide free to move along the Zipper.
  • a slider as claimed in claim 1 wherein a longitudinal groove extends along said upper covering surface of the slide to cooperate with said first slot for anchoring and retaining said locking spring.

Landscapes

  • Slide Fasteners (AREA)
US552343A 1965-12-13 1966-05-23 Slider for zip-fasteners Expired - Lifetime US3378894A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1724765A CH432093A (it) 1965-12-13 1965-12-13 Cursore per chiusura lampo, provvisto di bloccaggio automatico

Publications (1)

Publication Number Publication Date
US3378894A true US3378894A (en) 1968-04-23

Family

ID=4423901

Family Applications (1)

Application Number Title Priority Date Filing Date
US552343A Expired - Lifetime US3378894A (en) 1965-12-13 1966-05-23 Slider for zip-fasteners

Country Status (7)

Country Link
US (1) US3378894A (fr)
BE (1) BE674807A (fr)
CH (1) CH432093A (fr)
DE (1) DE1610349A1 (fr)
DK (1) DK125673B (fr)
FR (1) FR1465078A (fr)
NL (1) NL6604652A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2072256B (en) * 1980-03-04 1983-12-21 Yoshida Kogyo Kk Automatic lock slider for slide fasteners

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2477439A (en) * 1944-08-15 1949-07-26 Talon Inc Automatic lock slider
US2697261A (en) * 1950-09-26 1954-12-21 Bernasconi Giuseppe Slide for zippers
AT186213B (de) * 1953-10-24 1956-07-25 Edgar Cermak Schieber aus Kunststoff für Reißverschlüsse
CH350944A (de) * 1957-05-16 1960-12-31 Ryser Ernst Automatisch sich feststellender Schieber für Reissverschlüsse

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2477439A (en) * 1944-08-15 1949-07-26 Talon Inc Automatic lock slider
US2697261A (en) * 1950-09-26 1954-12-21 Bernasconi Giuseppe Slide for zippers
AT186213B (de) * 1953-10-24 1956-07-25 Edgar Cermak Schieber aus Kunststoff für Reißverschlüsse
CH350944A (de) * 1957-05-16 1960-12-31 Ryser Ernst Automatisch sich feststellender Schieber für Reissverschlüsse

Also Published As

Publication number Publication date
DE1610349A1 (de) 1970-02-05
FR1465078A (fr) 1967-01-06
DK125673B (da) 1973-03-26
BE674807A (fr) 1966-06-16
CH432093A (it) 1967-03-15
NL6604652A (fr) 1967-06-14

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