EP1662929A1 - Slider element of a zip fastener - Google Patents

Slider element of a zip fastener

Info

Publication number
EP1662929A1
EP1662929A1 EP04742251A EP04742251A EP1662929A1 EP 1662929 A1 EP1662929 A1 EP 1662929A1 EP 04742251 A EP04742251 A EP 04742251A EP 04742251 A EP04742251 A EP 04742251A EP 1662929 A1 EP1662929 A1 EP 1662929A1
Authority
EP
European Patent Office
Prior art keywords
spring
zip fastener
slider element
pull tag
fastening
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.)
Granted
Application number
EP04742251A
Other languages
German (de)
French (fr)
Other versions
EP1662929B1 (en
Inventor
Seppo Siivonen
Original Assignee
Stenhall Turo
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 Stenhall Turo filed Critical Stenhall Turo
Priority to PL04742251T priority Critical patent/PL1662929T3/en
Publication of EP1662929A1 publication Critical patent/EP1662929A1/en
Application granted granted Critical
Publication of EP1662929B1 publication Critical patent/EP1662929B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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

Definitions

  • the invention relates to a slider element of a zip fastener which comprises a body with a tunnel for the rows of coupling elements comprised in the zip fastener, a pull tag with a fastening and a pivoting axis, and a spring that locks the fastening and pivoting axis of the pull tag to the body, the spring being equipped with a slide-locking projection that returns to the slide- locking position extending into the tunnel due to the spring effect of the spring.
  • a zip fastener slider element of the above-mentioned type (a so-called cam-lock solution), in which the spring effect affects the turning of the pull tag, that is, there is a cam on the pull tag, which bends the spring when the pull tag is turned and at the same time lifts the slide- locking projection connected to the spring up from the tunnel.
  • the spring are the lugs of the fastening and a pivoting axis of the pull tag, and the spring for its part is fixed to the body with lugs that must be bent during assembly. This requires an assembling machine.
  • the aim of the invention is to provide a slider element of a zip fastener of the above type that is easy to assemble (even manually) and which is structurally strong, especially in such a way that the spring and pull tag are tightly locked to the body.
  • a particular advantage of the solution according to the invention is that as the load increases, the curved spring fixed at both ends bites even more tightly into its notches.
  • the slider element in the solution according to the invention may be of metal or plastic.
  • the slider element according to the invention may be of the cam-lock or auto-lock type. The solution is cheap and simple and does not have the scraping surfaces of a spring member.
  • Figure 1 shows a slider element of a zip fastener according to the invention, as seen from the side,
  • Figure 2 shows the same slider element when the spring is detached
  • Figures 3-6 show the spring from the side, from above, as a section V-V and when spread out.
  • the spring is a tempered steel spring. If the spring is made of plastic, it is completed into its final form, and there is no spread-out form as shown in Figure 6.
  • the body 1 of the slider element is a tunnel 1.1 for the rows of coupling elements of the zip fastener.
  • the top and bottom parts of the body are joined together by means of a core part 1.2, which divides one end of the tunnel 1.1 into two tunnel branches, in which the rows of coupling elements separated by the core part 1.2 slide when the zip fastener is being opened or closed. Since the body 1 causes the rows of coupling elements to open and close, the body 1 is also called a lock.
  • the slider element also comprises a pull tag 2 and a spring 3, which locks the pull tag 2 to the body in a manner described in greater detail below.
  • the spring 3 is provided with a slide- locking projection 3.3, which returns to the slide-locking position extending into the tunnel 1.1 due to the spring effect of the spring 3.
  • gripping parts 3.1 At opposite ends of the spring 3 are formed gripping parts 3.1, by means of which the detached, curved spring 3 can be attached to the formed counterparts 1.5.
  • These formed counterparts 1.5 are located at opposite ends of the lugs 1.3 on top of the body.
  • the ends of the lugs 1.3 are formed into guiding arcs that distance the formed gripping parts 3.1 of the spring 3 against the spring force, that is, straighten the curvature of the spring 3 when the spring 3 is pressed into place in the body between the lugs 1.3 from above, until the formed gripping parts 3.1 snap into the formed counterparts 1.5 due to the spring effect of the spring 3.
  • the formed gripping parts 3.1 are pins or similar projections at opposite ends of the spring 3, and the formed counterparts 1.5 are notches opening in opposite directions into which the pins 3.1 snap in place.
  • the gripping pins 3.1 bite even more tightly into the notches 1.5.
  • the lugs 1.3 of the body is an upwards open notch 1.6 which is connected a notch 1.4 open on one side which receives the fastening and a pivoting axis 2.1 of the pull tag 2.
  • the open side of the notch 1.4 is closed by a branch 3.2 projecting from the spring 3.
  • the slide-locking projection 3.3 is an extension of the branch 3.2 of the spring.
  • the branch 3.2 of the spring thus locks the fastening and a pivoting axis of the pull tag into place by closing the notch 1.4 and by thus preventing the movement of the fastening and pivoting axis 2.1 in the longitudinal direction of the tunnel 1.1 with respect to the body 1.
  • the shaft 2.1 is locked into place in this manner, there must be a cam 2.2 in connection with the pull tag 2 shaft 2.1, which arches the spring 3 between its fastening ends 3.1 when the pull tag 2 is turned.
  • the cam 2.2 allows the spring 3 to return to the rest position, in which the projection 3.3 extends into the tunnel 1.1 through the hole 1.7.
  • the cam 2.2 will bend the spring 3 by reducing the curvature of the spring arches.
  • the same projection 3.3 also rises up from the tunnel 1.1, whereby the slider element is able to slide to open or close the zip fastener.
  • On the top surface, that is the cover, of the body 1 is a recess 1.8 which receives the cam 2.2.
  • the hole 1.7 is at the bottom of the recess 1.8.
  • the spring 3 is designed in such a way that adjacent to both its fastening ends 3.1 are arches in one direction, and between these arches there is curvature in the spring in the opposite direction.
  • the last- mentioned curvature is at the branch 3.2 and at the projection 3.3.
  • the cam 2.2 bends the spring 3 by reducing the curvature of these arches, that is, three separate arches form what is closer to one large uniform arch.
  • the spring is, therefore, subjected simultaneously to bending stress and tensile stress when the pull tag is pulled or when the pull tag is turned.
  • the embodiment described above is thus of the cam-lock type.
  • An auto-lock type solution is realised in such a way that the fastening and pivoting axis 2.1 is not locked into place but is able to move in the notches of the lugs 1.3 against the spring 3, whereby when the pull tag 2 is pulled, the spring 3 bends and is subjected, with its part between the formed gripping parts 3.1, to the bending and tensile stress in the same way as when lifted by the cam 2.2.
  • the tensile stress of the spring 3 has the additional significance that it receives excessive loads directed at the pull tag and thus substantially reduces the risk of damage.

Landscapes

  • Slide Fasteners (AREA)
  • Clamps And Clips (AREA)
  • Details Of Garments (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
  • Buckles (AREA)

Abstract

The invention relates to a slider element of a zip fastener which comprises a body (1) with a tunnel (1.1) for the rows of coupling elements comprised in the zip fastener, a pull tag (2) and a spring (3) that locks the pull tag to the body. The spring is equipped with a slide-locking projection (3.3), which returns to the slide-locking position extending into the tunnel (1.1) due to the spring effect of the spring. At opposite ends of the spring (3) are formed gripping parts (3.1), by means of which the detached, curved spring (3) can be attached to the formed counterparts (1.5) of the body (1). Pulling the pull tag or turning the pull tag loads and bends the spring (3) between its fastening ends (3.1).

Description

Slider element of a zip fastener
The invention relates to a slider element of a zip fastener which comprises a body with a tunnel for the rows of coupling elements comprised in the zip fastener, a pull tag with a fastening and a pivoting axis, and a spring that locks the fastening and pivoting axis of the pull tag to the body, the spring being equipped with a slide-locking projection that returns to the slide- locking position extending into the tunnel due to the spring effect of the spring.
Previously is known a three-part slider element of a zip fastener, where the body, pull tag and spring may be relatively easily assembled into a slider element which locks automatically due to the spring effect so as to become non-sliding, when the pull tag is not pulled ("3-piece auto-lock"). Pulling this pull tag bends the spring and pulls the slide-locking projection out of the tunnel of rows of coupling elements. This solution does not necessarily require complex assembling machinery because it is built up by means of its spring effect and the bevels in the body. A weakness of this solution is, however, the scraping effect of the edges of the spring member. In addition, the spikes of the spring member constitute a weak part that breaks when the slider element is stressed. Also the spring formed as the tail of the spring member is weak and susceptible to breakdowns. The solution functions only in metallic form, when the spring is tempered.
In addition is known a zip fastener slider element of the above-mentioned type (a so-called cam-lock solution), in which the spring effect affects the turning of the pull tag, that is, there is a cam on the pull tag, which bends the spring when the pull tag is turned and at the same time lifts the slide- locking projection connected to the spring up from the tunnel. In the spring are the lugs of the fastening and a pivoting axis of the pull tag, and the spring for its part is fixed to the body with lugs that must be bent during assembly. This requires an assembling machine.
The aim of the invention is to provide a slider element of a zip fastener of the above type that is easy to assemble (even manually) and which is structurally strong, especially in such a way that the spring and pull tag are tightly locked to the body.
This aim is achieved by means of the invention, on the basis of the characteristics disclosed in claim 1.
A particular advantage of the solution according to the invention is that as the load increases, the curved spring fixed at both ends bites even more tightly into its notches. The slider element in the solution according to the invention (including the spring) may be of metal or plastic. The slider element according to the invention may be of the cam-lock or auto-lock type. The solution is cheap and simple and does not have the scraping surfaces of a spring member.
The dependent claims disclose preferred embodiments of the invention.
An embodiment of the invention is described in greater detail in the following, with reference to the accompanying drawings, in which
Figure 1 shows a slider element of a zip fastener according to the invention, as seen from the side,
Figure 2 shows the same slider element when the spring is detached, and
Figures 3-6 show the spring from the side, from above, as a section V-V and when spread out. In this case, the spring is a tempered steel spring. If the spring is made of plastic, it is completed into its final form, and there is no spread-out form as shown in Figure 6.
In the body 1 of the slider element is a tunnel 1.1 for the rows of coupling elements of the zip fastener. The top and bottom parts of the body are joined together by means of a core part 1.2, which divides one end of the tunnel 1.1 into two tunnel branches, in which the rows of coupling elements separated by the core part 1.2 slide when the zip fastener is being opened or closed. Since the body 1 causes the rows of coupling elements to open and close, the body 1 is also called a lock. The slider element also comprises a pull tag 2 and a spring 3, which locks the pull tag 2 to the body in a manner described in greater detail below. The spring 3 is provided with a slide- locking projection 3.3, which returns to the slide-locking position extending into the tunnel 1.1 due to the spring effect of the spring 3.
At opposite ends of the spring 3 are formed gripping parts 3.1, by means of which the detached, curved spring 3 can be attached to the formed counterparts 1.5. These formed counterparts 1.5 are located at opposite ends of the lugs 1.3 on top of the body. The ends of the lugs 1.3 are formed into guiding arcs that distance the formed gripping parts 3.1 of the spring 3 against the spring force, that is, straighten the curvature of the spring 3 when the spring 3 is pressed into place in the body between the lugs 1.3 from above, until the formed gripping parts 3.1 snap into the formed counterparts 1.5 due to the spring effect of the spring 3. In the case described, the formed gripping parts 3.1 are pins or similar projections at opposite ends of the spring 3, and the formed counterparts 1.5 are notches opening in opposite directions into which the pins 3.1 snap in place. When a spring 3 in position is loaded by pulling it upwards, the gripping pins 3.1 bite even more tightly into the notches 1.5. In the lugs 1.3 of the body is an upwards open notch 1.6 which is connected a notch 1.4 open on one side which receives the fastening and a pivoting axis 2.1 of the pull tag 2. The open side of the notch 1.4 is closed by a branch 3.2 projecting from the spring 3. In the case shown, the slide-locking projection 3.3 is an extension of the branch 3.2 of the spring. The branch 3.2 of the spring thus locks the fastening and a pivoting axis of the pull tag into place by closing the notch 1.4 and by thus preventing the movement of the fastening and pivoting axis 2.1 in the longitudinal direction of the tunnel 1.1 with respect to the body 1. When the shaft 2.1 is locked into place in this manner, there must be a cam 2.2 in connection with the pull tag 2 shaft 2.1, which arches the spring 3 between its fastening ends 3.1 when the pull tag 2 is turned. When the pull tag 2 points in the direction of movement of the slider element 1 for opening the zip fastener, the cam 2.2 allows the spring 3 to return to the rest position, in which the projection 3.3 extends into the tunnel 1.1 through the hole 1.7. When the pull tag 2 is turned into the position shown by the line of dots and dashes in Figure 1, the cam 2.2 will bend the spring 3 by reducing the curvature of the spring arches. The same projection 3.3 also rises up from the tunnel 1.1, whereby the slider element is able to slide to open or close the zip fastener. On the top surface, that is the cover, of the body 1 is a recess 1.8 which receives the cam 2.2. The hole 1.7 is at the bottom of the recess 1.8.
In the case described, the spring 3 is designed in such a way that adjacent to both its fastening ends 3.1 are arches in one direction, and between these arches there is curvature in the spring in the opposite direction. The last- mentioned curvature is at the branch 3.2 and at the projection 3.3. The cam 2.2 bends the spring 3 by reducing the curvature of these arches, that is, three separate arches form what is closer to one large uniform arch. The spring is, therefore, subjected simultaneously to bending stress and tensile stress when the pull tag is pulled or when the pull tag is turned.
Simultaneous bending and tensile stress provide many advantages. The tension fixes the formed gripping parts 3.1 even more tightly into place. Materials - even plastic material - withstand tension well. This solution offers for the first time the possibility of making the spring 3 of plastic.
The embodiment described above is thus of the cam-lock type. An auto-lock type solution is realised in such a way that the fastening and pivoting axis 2.1 is not locked into place but is able to move in the notches of the lugs 1.3 against the spring 3, whereby when the pull tag 2 is pulled, the spring 3 bends and is subjected, with its part between the formed gripping parts 3.1, to the bending and tensile stress in the same way as when lifted by the cam 2.2. In this embodiment, the tensile stress of the spring 3 has the additional significance that it receives excessive loads directed at the pull tag and thus substantially reduces the risk of damage.

Claims

Claims
1. A slider element of a zip fastener which comprises a body (1) with a tunnel (1.1) for the rows of coupling elements comprised in the zip fastener, a pull tag (2) with a fastening and pivoting axis (2.1), and a spring (3) that locks the fastening and pivoting axis of the pull tag to the body, the spring being equipped with a slide-locking projection (3.3) that returns to the slide- locking position extending into the tunnel (1.1) due to the spring effect of the spring, characterised in that at opposite ends of the spring (3) are formed gripping parts (3.1), by means of which the detached, curved spring 3 can be attached to the formed counterparts (1.5) of the body (1).
2. A slider element of a zip fastener as claimed in claim 1, characterised in that the formed counterparts (1.5) of the body (1) are located at opposite ends of the lugs (1.3) on body, and that the ends of the lugs (1.3) are formed into guiding arcs that distance the formed gripping parts (3.1) of the spring (3) against the spring force when the spring (3) is pressed into place in the body between the lugs (1.3) from above, until the formed gripping parts (3.1) snap into the formed counterparts (1.5) due to the spring effect the spring (3).
3. A slider element of a zip fastener as claimed in claim 2, characterised in that the formed gripping parts (3.1) are pins or similar projections at opposite ends of the spring (3), and the formed counterparts (1.5) are notches opening in opposite directions.
4. A slider element of a zip fastener as claimed in any of the claims 1 to 3, characterised in that at the opposite ends of the spring (3), adjacent to the formed gripping parts (3.1), there are arches in the spring (3) in one direction, and between these arches there is curvature in the spring in the opposite direction, and that pulling the pull tag or turning the pull tag bends the spring (3) by reducing the curvature of these arches.
5. A slider element of a zip fastener as claimed in any of the claims 1 to 4, characterised in that there is cam (2.2) on the fastening and pivoting axis (2.1) of the pull tag, which bends the spring (3) between its fastening ends
(3.1) when the pull tag is turned.
6. A slider element of a zip fastener as claimed in any of the claims 1 to 5, characterised in that there is a notch (1.4) open on one side in the body, which receives the fastening and a pivoting axis (2.1) of the pull tag (2), the open side of the notch being closed by a branch (3.2) projecting from the spring.
7. A slider element of a zip fastener as claimed in claim 6, characterised in that the slide-locking projection (3.3) is an extension of the spring branch
(3.2) that locks the fastening and a pivoting axis (2.1) of the pull tag into place by closing the said notch (1.4) open on one side and by thus preventing the movement of the fastening and pivoting axis (2.1) in the longitudinal direction of the tunnel (1.1) with respect to the body (1).
8. A slider element of a zip fastener as claimed in any of the claims 1 to 7, characterised in that when the spring (3) is loaded by means of the pull tag (2), the spring (3) is subjected simultaneously to bending stress and tensile stress.
EP04742251A 2003-08-01 2004-06-23 Slider element of a zip fastener Not-in-force EP1662929B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL04742251T PL1662929T3 (en) 2003-08-01 2004-06-23 Slider element of a zip fastener

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20035128A FI20035128A (en) 2003-08-01 2003-08-01 Zipper slide element
PCT/FI2004/050101 WO2005011426A1 (en) 2003-08-01 2004-06-23 Slider element of a zip fastener

Publications (2)

Publication Number Publication Date
EP1662929A1 true EP1662929A1 (en) 2006-06-07
EP1662929B1 EP1662929B1 (en) 2008-04-09

Family

ID=27839072

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04742251A Not-in-force EP1662929B1 (en) 2003-08-01 2004-06-23 Slider element of a zip fastener

Country Status (8)

Country Link
EP (1) EP1662929B1 (en)
CN (1) CN100571562C (en)
AT (1) ATE391434T1 (en)
DE (1) DE602004013019T2 (en)
ES (1) ES2300793T3 (en)
FI (1) FI20035128A (en)
PL (1) PL1662929T3 (en)
WO (1) WO2005011426A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8567019B2 (en) 2011-04-18 2013-10-29 Ykk Corporation Of America Semi-automatic slider

Family Cites Families (15)

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Publication number Priority date Publication date Assignee Title
US2197690A (en) * 1939-12-12 1940-04-16 Us Rubber Co Slider for separable fasteners
GB644482A (en) * 1948-05-07 1950-10-11 Aero Zipp Fasteners Ltd Improvements in or relating to sliding clasp fasteners
US3070865A (en) * 1962-01-05 1963-01-01 Scovill Manufacturing Co Spring-locking slider for zipper fasteners
DE2210872A1 (en) * 1972-03-07 1973-09-20 Opti Holding Ag ZIPPER SLIDER
US4074399A (en) * 1976-11-08 1978-02-21 Textron, Inc. Slider for slide fastener
GB2051221B (en) * 1979-06-14 1983-08-10 Rhondda Pressings Ltd Sliding clasp fasteners
GB2072256B (en) * 1980-03-04 1983-12-21 Yoshida Kogyo Kk Automatic lock slider for slide fasteners
JPS5724130B1 (en) * 1981-02-25 1982-05-22
DE3437467A1 (en) * 1984-10-12 1986-04-24 Opti Patent-, Forschungs- Und Fabrikations-Ag, Riedern-Allmeind ZIPPER PULL
IE861662L (en) * 1986-06-23 1987-12-23 Joseph Patrick Spencer Keyboard security device
JPH0757204B2 (en) * 1986-07-04 1995-06-21 ワイケイケイ株式会社 Slide fastener with slider with stop device
JPH0721123Y2 (en) * 1988-10-22 1995-05-17 ワイケイケイ株式会社 Slider for slide fastener with automatic stop device
JP3393572B2 (en) * 1996-04-30 2003-04-07 ワイケイケイ株式会社 Slider for slide fastener with automatic stop device and cover molding die for the slider
JPH10127313A (en) * 1996-10-31 1998-05-19 Ykk Corp Slider for sliding fastener with automatic stopping device
JP3714534B2 (en) * 2001-04-23 2005-11-09 Ｙｋｋ株式会社 Slider for slide fastener with stop device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005011426A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8567019B2 (en) 2011-04-18 2013-10-29 Ykk Corporation Of America Semi-automatic slider

Also Published As

Publication number Publication date
CN100571562C (en) 2009-12-23
ATE391434T1 (en) 2008-04-15
EP1662929B1 (en) 2008-04-09
CN1829456A (en) 2006-09-06
DE602004013019D1 (en) 2008-05-21
ES2300793T3 (en) 2008-06-16
PL1662929T3 (en) 2008-09-30
FI20035128A (en) 2003-08-15
DE602004013019T2 (en) 2009-07-23
WO2005011426A1 (en) 2005-02-10

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