US20110209308A1 - Bottom End Stop for a Slide Fastener - Google Patents

Bottom End Stop for a Slide Fastener Download PDF

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Publication number
US20110209308A1
US20110209308A1 US13/038,008 US201113038008A US2011209308A1 US 20110209308 A1 US20110209308 A1 US 20110209308A1 US 201113038008 A US201113038008 A US 201113038008A US 2011209308 A1 US2011209308 A1 US 2011209308A1
Authority
US
United States
Prior art keywords
arm portions
end stop
plate member
portions
arm
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.)
Abandoned
Application number
US13/038,008
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English (en)
Inventor
Alessandro Ostinelli
Luca Liut
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.)
Riri SA
Original Assignee
Riri 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 Riri SA filed Critical Riri SA
Assigned to RIRI SA reassignment RIRI SA ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: Liut, Luca, OSTINELLI, ALESSANDRO
Publication of US20110209308A1 publication Critical patent/US20110209308A1/en
Abandoned 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
    • A44B19/36—Means for permanently uniting the stringers at the end; Means for stopping movement of slider at the end
    • 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
    • Y10T24/2598—Zipper or required component thereof including means for obstructing movement of slider

Definitions

  • the invention refers to a bottom end stop for a slide fastener.
  • the invention discloses an improvement to bottom end stops that enable a decoration such as letters or marks.
  • bottom end stops are substantially X-shaped with a core portion and four leg portions departing obliquely from the core portion.
  • the bottom end stop is clamped on side edges of the fastener tapes, or reinforcing side cords thereof, by pressing and deforming the aforesaid leg portions.
  • a projection is formed on the inner side of the leg portions, to form an accommodating portion for the side edge of the fastener tape.
  • Drawbacks of such end stops are that cracks may often occur when the bottom end stop is pressed, and the lack of any plane surface for a decoration such as letters or marks.
  • Another bottom end stop is disclosed, which is constituted of an upper plate and a lower plate connected by a base portion; the upper plate is formed of a flat plate and a flange is provided on each of both side ends thereof by bending each side end; the lower plate comprises a circular groove portion formed in a center of a rear face thereof. More in detail, the lower plate and the upper plate face each other in the vertical direction, and arm portions are formed so as to extend from a central side of the lower plate toward each of the right and left sides of the lower plate. The core portion of the right and left fastener tapes is sandwiched between the upper plate and the lower plate.
  • This kind of a bottom end stop makes available a flat surface on the upper plate, which is not deformed while the stop is pressed on the fastener tapes and, then, is adapted to receive a decoration or mark, prior to attachment to the fastener tapes.
  • the circular groove is thought to reduce the risk of cracks.
  • the above solution however is not yet satisfying.
  • the applicant has found that under intense use, the attachment to the edges of the fastener tapes is not resistant enough, especially in the longitudinal direction, i.e. the sliding direction of the slider of the fastener, and slipping of the end stop may occur.
  • the bottom end stop must be able to absorb the impact with the slider, for example when the slide fastener is opened quickly. Any misalignment of the bottom end stop, that may be caused by intense use and slipping of the end stop relative to fastener tapes, can compromise the correct function and appearance of the slide fastener.
  • the bottom end stop is required to maintain the engagement between the teeth, in particular to form a support for the bottom end tooth of the slide fastener. In case of a failure of the attachment of the end stop, a disengagement of the bottom teeth may occur.
  • the problem faced by the invention is to improve the attachment to fastener tape edges of a bottom end stop, the stop allowing an upper flat surface for decorations, marks or the like.
  • a bottom end stop for a slide fastener comprising a plate member and deformable arm portions arranged to form a left and right accommodating portions for side edges of fastener tapes of a slide fastener, characterized in that said arm portions extend from said plate member, each of the arm portions having a proximal end connected to the plate member, and a distal end facing a side part of the plate member, and in that the end stop comprises a plurality of left arm portions and a plurality of right arm portions, arranged along the left and right sides of the bottom end stop respectively, and spaced from each other.
  • the number of left and right arm portions is variable.
  • the arms are curved towards the left/right ends of the stop; more preferably the arms are formed substantially as arcs of a circumference.
  • the distal ends of the arm portions may be connected by bridge portions.
  • Bridged arm portions form respective windows, between two consecutive arm portions.
  • the distal ends of the two (or more) left arm portions and the distal ends of the two (or more) right arm portions are connected by a left bridge portion and a right bridge portion, so that clamping deformable elements are formed on each side of the end stop, each clamping element having one (or more) window between consecutive arm portions.
  • the plate member and the ends of the arm portions may be provided with flanges to securely hold the edges of the fastener tapes.
  • Flanges can also be formed integrally with the bridge portions.
  • the proximal ends of the arm portions are joined to a longitudinal relief projecting from the rear face of the plate member.
  • a left and right relief may be provided, supporting the left and right arm portions, respectively.
  • Each arm portion may have a base part larger than said proximal end.
  • each arm portion may have a base part substantially formed as a pyramid, with inclined faces that gradually join the proximal end of the arm portion to the rear face of the plate member.
  • the plate member has an upper flat surface that is suitable to receive a trademark, logo or any decoration, prior to attachment of the stop to the fastener tapes.
  • the bottom end stop is preferably made of metal or a metal alloy. More preferably the material of the stop is a Zinc alloy.
  • the end stop can be manufactured for example by die casting.
  • the arrangement with two or more arm portions on each side allows a more secure and stronger attachment to the fastener tapes, thanks to the free space or window which remain between the arm portions. It has been noted that, since the material of the side edges of the fastener tape is allowed to expand through said free space or windows, a deeper penetration of the arm portion into the side edges is possible. In other words, the presence of two or more arm portions on each sides, and related one or more intermediate free spaces or windows, allows expansion of the deformable material of the side edges of fastener tapes, thus compensating for the deformation induced by the rigid metal portions on the material of the fastener tape edges.
  • Another advantage of the invention is that the arm portions, departing from the plate member, rather than being associated to a further lower plate, are longer and are more easily deformed, thus reducing the risk of cracking also without the need of a circular groove.
  • the plate member is substantially unaffected by the clamping action and related deformation of the arm portions. Then, a decoration, a logo or a mark can be expressed on the visible outer surface of the plate member.
  • FIG. 1 is a view of a bottom end stop for a slide fastener, according to one of the embodiments of the invention.
  • FIG. 2 is a bottom perspective view of the stop of FIG. 1 .
  • FIG. 3 is a side view of the end stop of FIG. 1 .
  • FIG. 4 is a sectional view of the bottom end stop of FIG. 1 , showing the edges of fastener tapes of a slide fastener.
  • FIG. 5 is a sectional view of the bottom end stop of FIG. 1 attached to edges of the fastener tapes.
  • FIG. 6 is a cut-out view of the bottom end stop and fastener tapes of FIG. 5 .
  • FIG. 7 is a view of a bottom end stop according to a second embodiment of the invention.
  • FIGS. 8 to 10 are views of a bottom end stop according to a third embodiment of the invention.
  • a bottom end stop 1 for a slide fastener comprises a plate member 2 and deformable arm portions departing from said plate member 2 .
  • the arm portions are arranged on a plurality of left arm portions 4 a to 4 c , and a plurality of right arm portions 5 a to 5 c .
  • the figures show embodiments with two arm portions 4 a , 4 b and 5 a , 5 b on each side, or three arm portions 4 a to 4 c and 5 a to 5 c each side.
  • Each of said arm portions extends from a proximal end 18 connected to a rear face 11 of said plate member 2 ( FIG. 2 ), to a distal end facing a left side part 2 a or right side part 2 b of the plate member 2 .
  • Accommodating portions 3 for the side edges of fastener tapes of a slide fastener are formed between said parts 2 a , 2 b of the plate 2 and the arm portions.
  • the upper plate 2 is formed with a flat surface 2 c , covering at least a portion of the outer face of said plate 2 .
  • left and right arm portions can be connected each other by a respective left and right bridge portion 6 .
  • a window 7 is then formed between two adjacent left or right bridged arm portions.
  • the distal ends of the arm portions are preferably provided with flanges 12 and, more preferably, corresponding flanges 13 are provided at the side ends of the upper plate 2 .
  • flanges 12 may be integral with the bridge portions 6 connecting the distal ends of the arm portions.
  • Said flanges 12 and 13 are arranged to surround the side edges 21 of fastener tapes 20 , when the bottom end stop 1 is clamped on said tapes 20 as seen in FIGS. 5 and 6 .
  • the arm portions preferably depart from a central region 8 of the plate member 2 .
  • Said central region 8 may be formed thicker than other parts of the plate member 2 .
  • the proximal ends 18 of the arm portions may be joined to a left and right relief 10 , distancing the proximal ends 18 from the rear face 11 of the plate member 2 .
  • a groove 9 may optionally be provided between the reliefs 10 . Said groove 9 however is not essential.
  • a single relief 10 is provided at the center of the rear face 11 of the plate member 2 , all the left and right arm portions being joined to said single relief.
  • each of the arm portions such as for example the arm portion 4 b , has a base part 15 larger than the proximal end 18 .
  • said base part 15 is substantially formed as a pyramid, with inclined side surfaces 16 , that gradually join the proximal end 18 of the arm portion to the rear face 11 of the plate member 2 or to the aforesaid relief or reliefs 10 .
  • the advantage achieved with said larger base part 15 is that the starting point of deformation of the arm portions is distanced from the plate 2 , the larger base part 15 being more rigid than the rest of the arm portion.
  • the larger base part 15 helps to maintain a constant deformation of the arm portion during the pressing action that secures the end stop 1 to the tapes 20 , and the deformed arm portion, as seen for example in FIG. 5 , can more efficiently embrace the tape edge 21 .
  • a logo, trademark or other decoration can be made on the surface 2 c , before the end stop 1 is attached to the fastener tapes 20 .
  • the upper stop 1 is non symmetrical with respect to a vertical axis, to allow automatic recognition of front/rear of the stop 1 and, then, to allow correct orientation of said logo, trademark of decoration when the stop 1 is attached to the fastener tapes.
  • the position of front arm portions 4 a , 5 a and rear arm portions 4 b , 5 b or 4 c , 5 c can be non symmetrical with respect to a vertical axis, thus forming a rear step 14 .
  • Said rear step 14 allows a machine to automatically recognize the orientation of the upper stop 1 .
  • a bottom end stop 1 comprises two arm portions each side, namely a left pair comprising front left arm portion 4 a and rear left arm portion 4 b , and a right pair comprising front right arm portion 5 a and rear right arm portion 5 b.
  • each side of the stop 1 has a deformable clamping element comprised of arm portions 4 a and 4 b or 5 a and 5 b , and the distal bridge portion 6 , leaving a central window 7 .
  • the arm portions are formed as substantially circular arc-shaped elements, departing from two reliefs 10 formed in a central region 8 of the plate member 2 and curved towards the left/right ends of the stop 1 , where the distal ends of the arm portions are bridged by said bridge portions 6 .
  • Flanges 12 are integrally formed in the bridge portions 6 and the left and right ends of the plate member 2 are formed with corresponding end flanges 13 .
  • the flanges 12 and 13 are arranged to surround the side edges 21 of fastener tapes 20 , when the bottom end stop 1 is clamped on said tapes 20 as seen in FIGS. 5 and 6 .
  • the front arm portions 4 a and 5 a are substantially aligned with the front of upper plate 2 , while the rear arm portions 4 b and 5 b are shifted with respect to rear of upper plate 2 , thus forming the rear step 14 for automated recognition of the position of the stop 1 .
  • FIG. 4 shows the bottom end stop 1 before attachment to fastener tapes 20 .
  • the ends 21 of the fastener tapes are accommodated in the left and right accommodating portions 3 , formed between the parts 2 a , 2 b of the plate member 2 and the left/right clamping elements formed by said arm portions 4 a , 4 b , 5 a , 5 d and related bridge portions 6 .
  • the clamping elements are pressed, reaching the configuration of FIG. 5 , where deformed arm portions hold the edges 21 of the fastener tapes.
  • the material of the edges 21 of the tapes 20 can expand through the windows 7 , as shown by the dotted line 23 in FIG. 5 .
  • the surface 2 c is unaffected by the deformation and, hence, is suitable to carry a logo, trademark or the like.
  • FIG. 6 shows another view of a slide fastener comprising tapes 20 , teeth 22 made for example of metal, and the bottom end 1 attached to tape edges 21 .
  • FIG. 7 shows a second embodiment with two separate arm portions 4 a , 4 b and 5 a , 5 b each side, i.e. without the bridge portions.
  • FIGS. 8 to 10 show an embodiment with three separate arm portions 4 a to 4 c and 5 a to 5 c each side.
  • the accomodating portions 3 for the tape edges 21 are then formed between the plate 2 and the left or right plurality of separate arm portions; the material of tape edges 21 can expand in free spaces 27 between any of two adjacent arm portions, said free spaces 27 acting substantially as the aforesaid windows 7 of the bridged arm elements.
  • Each of the arm portions is formed with an end flange 12 , to hold the tape edges 21 in cooperation with the flange 13 of the plate member 2 .
  • the arm portions join gradually with the surface 11 of the plate member 2 , by means of inclined surfaces 16 , forming a pyramid-like base part 15 of the arm portion, larger than the proximal end 18 of the arm portion itself.
  • This embodiment with larger pyramid-like base parts 15 is applicable also to bridged-arm embodiments, such as those depicted in FIGS. 1 to 3 .

Landscapes

  • Slide Fasteners (AREA)
US13/038,008 2010-03-01 2011-03-01 Bottom End Stop for a Slide Fastener Abandoned US20110209308A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP10155076A EP2363035B1 (en) 2010-03-01 2010-03-01 Bottom end stop for a slide fastener
EP10155076.2 2010-03-01

Publications (1)

Publication Number Publication Date
US20110209308A1 true US20110209308A1 (en) 2011-09-01

Family

ID=42357441

Family Applications (1)

Application Number Title Priority Date Filing Date
US13/038,008 Abandoned US20110209308A1 (en) 2010-03-01 2011-03-01 Bottom End Stop for a Slide Fastener

Country Status (5)

Country Link
US (1) US20110209308A1 (ja)
EP (1) EP2363035B1 (ja)
JP (1) JP5815252B2 (ja)
CN (1) CN102188083B (ja)
DK (1) DK2363035T3 (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013013716A1 (en) 2011-07-27 2013-01-31 Ykk Corporation Stop for a slide fastener, and a method for the manufacture thereof
FR3073372B1 (fr) * 2017-11-15 2022-01-07 Ykk Corp Arret destine a une fermeture eclair, et procede de fabrication de la fermeture eclair
CN113692235B (zh) * 2019-04-18 2022-06-14 Ykk株式会社 止动构件、带拉链的产品、以及拉链

Citations (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2161329A (en) * 1937-09-11 1939-06-06 Wittenberg Erich End stop member for separable fasteners
US2312045A (en) * 1941-02-19 1943-02-23 Louis H Morin Bottom stop for separable fasteners and the method of producing the same
US2395370A (en) * 1943-08-27 1946-02-19 Waldes Kohinoor Inc Slide fastener
US2474908A (en) * 1943-07-30 1949-07-05 Davis Marinsky End stop for separable fasteners and method of forming the same
US2563454A (en) * 1951-08-07 End stop for slide fasteners
US2948039A (en) * 1957-02-14 1960-08-09 Talon Inc Slide fastener
US2951285A (en) * 1956-03-02 1960-09-06 Talon Inc Method of making an end stop for slide fasteners
US3616939A (en) * 1969-08-06 1971-11-02 Fflb Separable zip fastener
US3922761A (en) * 1972-09-01 1975-12-02 Opti Holding Ag Separable slide-fastener stringer
US4001922A (en) * 1975-11-03 1977-01-11 Textron, Inc. Tape reinforcements for slide fasteners
US4112553A (en) * 1976-01-01 1978-09-12 Jonas Weitzner Slide fastener bottom ends
US4433478A (en) * 1981-03-24 1984-02-28 Yoshida Kogyo K. K. Method of and apparatus for attaching bottom stops to a slide fastener chain
US4587694A (en) * 1982-12-06 1986-05-13 Yoshida Kogyo K.K. Bottom stop for slide fasteners
US4651389A (en) * 1984-10-25 1987-03-24 Yoshida Kogyo K. K. Slide fastener
US4742603A (en) * 1985-06-26 1988-05-10 Yoshida Kogyo K.K. Separable bottom-end-stop assembly for separable slide fastener
US4870724A (en) * 1986-09-09 1989-10-03 Yoshida Kogyo K. K. Separable slide fastener
US20030115725A1 (en) * 2001-12-20 2003-06-26 Satoshi Matsumoto Separable bottom end stop for concealed slide fastener
US20060075612A1 (en) * 2004-10-13 2006-04-13 Unitech Zipper And Machinery Co., Ltd. Lower stop arrangement for concealed zipper
US7340806B2 (en) * 2004-06-18 2008-03-11 Ykk Corporation Opener for slide fastener
US20080115337A1 (en) * 2006-11-20 2008-05-22 Miyuki Ohgaku Bottom end stop for slide fastener
US20080222855A1 (en) * 2007-03-15 2008-09-18 Ykk Corporation Concealed type slide fastener
US20090165266A1 (en) * 2003-11-20 2009-07-02 Tatsuya Deto End stop for slide fastener

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB519342A (en) * 1938-09-20 1940-03-21 Zipp Fastener Company Ltd Improvements in or relating to sliding clasp fasteners
CH234087A (de) * 1943-06-01 1944-09-15 Ri Ri Werk Ag Endglied für Reissverschlüsse.

Patent Citations (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2563454A (en) * 1951-08-07 End stop for slide fasteners
US2161329A (en) * 1937-09-11 1939-06-06 Wittenberg Erich End stop member for separable fasteners
US2312045A (en) * 1941-02-19 1943-02-23 Louis H Morin Bottom stop for separable fasteners and the method of producing the same
US2474908A (en) * 1943-07-30 1949-07-05 Davis Marinsky End stop for separable fasteners and method of forming the same
US2395370A (en) * 1943-08-27 1946-02-19 Waldes Kohinoor Inc Slide fastener
US2951285A (en) * 1956-03-02 1960-09-06 Talon Inc Method of making an end stop for slide fasteners
US2948039A (en) * 1957-02-14 1960-08-09 Talon Inc Slide fastener
US3616939A (en) * 1969-08-06 1971-11-02 Fflb Separable zip fastener
US3922761A (en) * 1972-09-01 1975-12-02 Opti Holding Ag Separable slide-fastener stringer
US4001922A (en) * 1975-11-03 1977-01-11 Textron, Inc. Tape reinforcements for slide fasteners
US4112553A (en) * 1976-01-01 1978-09-12 Jonas Weitzner Slide fastener bottom ends
US4433478A (en) * 1981-03-24 1984-02-28 Yoshida Kogyo K. K. Method of and apparatus for attaching bottom stops to a slide fastener chain
US4587694A (en) * 1982-12-06 1986-05-13 Yoshida Kogyo K.K. Bottom stop for slide fasteners
US4651389A (en) * 1984-10-25 1987-03-24 Yoshida Kogyo K. K. Slide fastener
US4742603A (en) * 1985-06-26 1988-05-10 Yoshida Kogyo K.K. Separable bottom-end-stop assembly for separable slide fastener
US4870724A (en) * 1986-09-09 1989-10-03 Yoshida Kogyo K. K. Separable slide fastener
US20030115725A1 (en) * 2001-12-20 2003-06-26 Satoshi Matsumoto Separable bottom end stop for concealed slide fastener
US20090165266A1 (en) * 2003-11-20 2009-07-02 Tatsuya Deto End stop for slide fastener
US7340806B2 (en) * 2004-06-18 2008-03-11 Ykk Corporation Opener for slide fastener
US20060075612A1 (en) * 2004-10-13 2006-04-13 Unitech Zipper And Machinery Co., Ltd. Lower stop arrangement for concealed zipper
US20080115337A1 (en) * 2006-11-20 2008-05-22 Miyuki Ohgaku Bottom end stop for slide fastener
US20080222855A1 (en) * 2007-03-15 2008-09-18 Ykk Corporation Concealed type slide fastener

Also Published As

Publication number Publication date
DK2363035T3 (da) 2013-04-08
EP2363035A1 (en) 2011-09-07
JP5815252B2 (ja) 2015-11-17
CN102188083B (zh) 2015-09-02
JP2011177514A (ja) 2011-09-15
EP2363035B1 (en) 2013-01-02
CN102188083A (zh) 2011-09-21

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Legal Events

Date Code Title Description
AS Assignment

Owner name: RIRI SA, SWITZERLAND

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:OSTINELLI, ALESSANDRO;LIUT, LUCA;REEL/FRAME:025937/0551

Effective date: 20100607

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION