US20060171610A1 - Internal gripping slider and method - Google Patents
Internal gripping slider and method Download PDFInfo
- Publication number
- US20060171610A1 US20060171610A1 US11/046,927 US4692705A US2006171610A1 US 20060171610 A1 US20060171610 A1 US 20060171610A1 US 4692705 A US4692705 A US 4692705A US 2006171610 A1 US2006171610 A1 US 2006171610A1
- Authority
- US
- United States
- Prior art keywords
- closure
- top wall
- profile
- guide post
- slider device
- 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
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/16—End- or aperture-closing arrangements or devices
- B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
- B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
- B65D33/2584—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor characterized by the slider
- B65D33/2586—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor characterized by the slider being provided with a separating plow
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/16—End- or aperture-closing arrangements or devices
- B65D33/25—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners
- B65D33/2508—Riveting; Dovetailing; Screwing; using press buttons or slide fasteners using slide fasteners with interlocking members having a substantially uniform section throughout the length of the fastener; Sliders therefor
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- 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
- A44B19/267—Sliders for slide fasteners with edges of stringers having uniform section throughout the length thereof
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- 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
- Y10T24/2532—Zipper or required component thereof having interlocking surface with continuous cross section
-
- 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
- Y10T24/2532—Zipper or required component thereof having interlocking surface with continuous cross section
- Y10T24/2534—Opposed interlocking surface having dissimilar cross section
Definitions
- the present invention generally relates to closure arrangements for polymer packages, such as, thermoplastic bags.
- the invention relates to closure arrangements having resealable profiles with track members and a slider device having a separator structure that grips the track members in opening and closing the bag.
- resealable containers to store or enclose various types of articles and materials. These packages may be used to store food products, non-food consumer goods, medical supplies, waste materials, and many other articles. Resealable packages are convenient in that they can be closed and resealed after the initial opening to preserve the enclosed contents. The need to locate a storage container for the unused portion of the products in the package is thus avoided. In some instances, providing products in resealable packages appreciably enhances the marketability of those products.
- resealable packages are opened and closed using a slider device.
- the slider device typically includes a separator or spreader-type structure at one end that opens a closure mechanism, having profiled elements or closure profiles, when the slider device travels in a first direction along the mechanism.
- Conventional resealable packages include a notch formed in the upper flanges of the resealable closure mechanism. The notch serves as a “parking place” for the slider device and also facilitates mounting the slider device onto the resealable package. Additionally, one edge of the notch closest to the side edge of the resealable package creates a stop member for the slider device.
- the primary object of the present invention is to provide a slider device having a separator structure that that grips the profile track members in opening and closing the profile lock members of a resealable plastic bag.
- Another object of the invention is to provide a slider device that allows for easer opening and closing of the package.
- a slider for use on a reclosable bag.
- the slider comprises a top wall having a front portion, a middle portion, and a back portion, side walls depending from the top wall wherein the sidewalls have front end portions being spaced wider apart, middle portions curving inwardly toward the middle portion of the top wall, and back end portions being spaced sufficiently close together, and a separator structure depending from the top wall and extending between the side walls.
- the separator structure has a vertical portion and a horizontal portion with the horizontal portion being substantially wedge-shaped and wider toward the front portion of the top wall and narrower toward back portion of the top wall.
- the horizontal portion is situated for gripping track members and separating and sealing lock members on a closure mechanism of the reclosable bag.
- the closure mechanism includes a first closure profile and a second closure profile.
- the first closure profile has a bonding strip, a first upper plane with a first track member, a first lock member below the first track member, and a guide post below the first lock member.
- the second closure profile has a sealing flange or bonding strip, a second upper plane with a second track member, a guide post below the second track member, a second lock member below the guide post, and another guide below the second lock member.
- FIG. 1 is an enlarged, top perspective view of the slider device of the present invention.
- FIG. 2 is an enlarged, bottom perspective view of the slider device of the present invention.
- FIG. 3 is a cross-sectional view of profiled elements usable with the slider device of the present invention.
- FIG. 4 is a perspective view of a resealable closure mechanism with a notch in the upper planes of the closure mechanism profiles.
- FIG. 5 is a perspective view of a resealable bag having a leak proof plastic resealable closure with slider embodying the present invention.
- FIG. 6 is an illustration showing application of the slider being applied at the notch of the resealable closure mechanism profiles.
- FIG. 7 shows a rotary slide applicator used to apply a slider onto a resealable closure mechanism.
- FIG. 8 shows an assembled resealable closure mechanism/slider combination.
- FIG. 9 is an end view of a slider-resealable closure mechanism combination.
- FIG. 10 shows an inverted “L” shaped slit in the upper planes of the resealable closure mechanism profiles.
- FIG. 11 shows a vertical slit in the upper planes of the resealable closure mechanism profiles.
- FIG. 12 shows a punched hole in the upper plane of the resealable closure mechanism profiles.
- FIG. 13 shows a small vertical slit in the upper planes of the resealable closure mechanism profiles.
- the slider device 10 includes a housing 20 for slidably engaging the resealable closure mechanism ( FIG. 3, 100 ).
- the housing 20 is preferably a multi-sided container which includes a top wall 30 .
- top it is meant that in the orientation of the slider device 10 of FIG. 1 , the wall 30 is oriented above the remaining portions of the housing 20 . It should be understood, of course, that if the housing 20 is moved from the orientation shown in FIG. 1 , the top wall 30 will not be in a top orientation.
- the top wall 30 defines a front portion 31 , a middle portion 33 , and a back portion 32 .
- the top wall 30 also defines two open apertures 34 that run parallel to each other. The apertures 34 aid in providing a structure that may be more easily injection molded.
- the housing 20 includes sidewalls 40 having front end portions 41 being spaced wider apart, middle portions 43 curving inwardly toward the top wall middle portion 33 , and back end portions 42 being spaced sufficiently close together. These features of the sidewall portions 40 facilitate gripping and handling of the user.
- the sidewalls 40 are injection molded with the remaining parts of the housing 20 .
- the housing 20 comprises a single, unitary, integral piece of material with no additional materials welded, fastened, or bolted together.
- the sidewalls 40 can include texturization, such as ribs, to also help improve gripping and handling by the user.
- the housing 20 includes a separator structure 50 for separating the first and second closure profiles ( FIG. 3, 110 , 120 ) of the resealable closure mechanism ( FIG. 3, 100 ).
- the separator structure 50 extends or depends from the top wall 30 .
- the separator structure 50 includes a vertical portion 51 and a horizontal portion 52 .
- the horizontal portion 52 is of a wedge-shaped construction with the wider end toward the front portion 31 of the top wall 30 and the narrower end toward the back portion 32 of the top wall 30 .
- the horizontal portion is situated for gripping track members ( FIG. 3, 113 , 123 ) and separating and sealing lock members ( FIG. 3, 114 , 124 ) on a resealable closure mechanism 100 .
- a resealable closure mechanism 100 is best represented in FIGS. 3, 4 , and 5 .
- the resealable closure mechanism is shown in the specific form of a zipper-type closure mechanism.
- zipper-type closure mechanism it is meant a structure having opposite interlocking or mating profiled elements that under the application of pressure will interlock and close the region between the profiles.
- the zipper-type closure mechanism in FIGS. 3 and 4 is an illustration of one example of a closure mechanism 100 .
- the closure mechanism 100 includes an elongated first closure profile 110 and an elongated second closure profile 120 .
- the closure profiles 110 , 120 are manufactured separately from each other.
- the preferred first closure profile 110 depicted includes a bonding strip 111 , a first upper plane 112 with a first track member 113 , a first lock member 114 , and a guide post 115 .
- the guide post 115 aids in holding the closure mechanism 100 closed and aids in aligning the first closure profile 110 with the second closure profile 120 for interlocking.
- the bonding strip 111 depends or extends downward from the guide post 115 and can be attached to the reclosable bag 200 of FIG. 5 .
- the preferred second closure profile 120 depicted includes a sealing flange or bonding strip 121 , a second upper plane 122 with a second track member 123 , a second lock member 124 , and two guide posts 125 , 126 .
- the guide posts 125 , 126 aid in holding the closure mechanism 100 closed and in aligning the first closure profile 110 with the second closure profile 120 for interlocking.
- the bonding strip 121 depends or extends downward from the guide post 126 and can be attached to the reclosable bag of FIG. 5 .
- the first and second closure profiles 110 , 120 are designed to engage with one another to form the resealable closure mechanism 100 .
- the first lock member 114 of the first closure profile 110 extends from the profile 110 a first distance.
- the second lock member 124 of the second closure profile 120 also extends from the profile 120 a first distance. These first distances that the closure profiles 110 , 120 extend are sufficient to allow mechanical engagement, or interlocking, between the first lock member 114 of the first closure profile 110 and the second lock member 124 of the second closure profile 120 .
- the lock members 114 , 124 hook or engage each other.
- the closure profiles 110 , 120 may be sealed together at their ends, such as region 127 of FIG.
- the first and second upper planes 112 , 122 of the first and second closure profiles 110 , 120 define a notch or cutout 128 adjacent to the first side edge 205 of the reclosable bag 200 .
- the preferred notch 128 shown includes three straight edges or sides and is formed twice as long as the length of the separator structure 50 ( FIG. 2 ).
- the notch 128 serves as a “parking place” for a slider device 10 and may also facilitate mounting the slider device 10 onto the reclosable closure mechanism 100 during initial assembly.
- the closure profiles 112 , 122 are formed by two separate extrusions or through two separate openings of a common extrusion.
- the reclosable closure mechanism 100 is made of a polymer, plastic material, such as polyethylene or polypropylene.
- the closure arrangement illustrated in FIGS. 3 & 4 is manufactured using conventional extrusion and hot sealing techniques.
- a reclosable flexible plastic bag 200 is represented in FIG. 5 .
- the bag 200 has a reclosable closure mechanism 100 and a slider device 10 for opening and closing the closure mechanism 100 .
- the slider 10 is movable between a closed position of the bag when slider 10 is adjacent the side edge 206 and an open position of the bag 200 when the slider 10 is adjacent to the side edge 205 .
- the bag 200 may be resealable; that is, closure mechanism 100 not only closes the bag 200 but also seals the bag 200 .
- the reclosable bag 200 includes first and second opposed panel sections 201 , 202 , typically made from a flexible, polymeric, plastic film. With some manufacturing applications, the first and second panel sections 201 , 202 , are hot sealed together along two side edges 205 , 206 and meet at a fold line 207 in order to form a three-edged containment section for a product within an interior 208 of the bag 200 .
- the fold line 207 comprises the bottom edge 209 of the bag 200 .
- two separate panel sections 201 , 202 of plastic film may be used and hot sealed together along the two side edges 205 , 206 and at the bottom edge 209 . Access is provided to the interior 208 of the bag 200 through a mouth 210 at a top edge 211 of the bag 200 . In the particular embodiment shown, the mouth 210 extends the width of the bag 200 .
- the bag may be formed by either a blown extrusion process or by using a preformed roll of film.
- the film is folded in the form shown in FIG. 5 .
- the closure mechanism 100 may be applied to the film panel sections 201 , 202 by heat sealing the bonding strips ( FIG. 3, 111 , 121 ) to the film sections.
- the notch or cutout 128 may be cut into the upper planes ( FIG. 3, 112 , 122 ).
- the side seals 127 at edges 205 , 206 may be formed, for example, by ultrasonic crushing.
- the slider 10 in particular housing ( FIG.
- FIG. 6 is an illustration showing the application of the slider 10 being applied at the notch 128 of the closure mechanism 100 .
- the sequence of these steps may be rearranged as preferred, however it is preferred that the closure mechanism 100 with notch 128 is attached to panel sections 201 , 202 prior to mounting slider 10 .
- FIG. 7 the use of a rotary slider applicator 400 , that doesn't need to spread the slider 10 apart in order to apply the slider 10 onto the reclosable closure mechanism 100 , is shown.
- the notch 128 is positioned at the tangent point of the rotary applicator 400 , to apply the slider 10 .
- the notch 128 traps the first and second upper planes 112 , 122 between the separator structure 50 and a sidewall 40 of the slider device 10 .
- There are pins protruding from the rotary applicator 400 which drive the slider 10 around to be applied onto the closure mechanism 100 .
- Sliders 10 are transferred to the rotary applicator 400 via a vibratory bowl feeder and a supply track. Much of the process is the same as U.S. Pat. No. 6,199,256, which is incorporated herein as a reference.
- An assembled closure mechanism/slider 500 is shown in FIGS. 8 and 9 and illustrates how the reclosable closure mechanism 100 lock members 114 , 124 become opened at the point of the slider 10 being applied to the reclosable closure mechanism 100 with the rotary applicator ( FIG. 7, 400 ).
- FIG. 9 An end view of the slider 10 is shown with the reclosable closure mechanism 100 assembled together in FIG. 9 .
- the horizontal portion 52 of the separator structure 50 grips the track members 113 , 123 of the closure profiles 110 , 120 and aids in separating the lock members 114 , 124 when moved in one direction and sealing the lock members 114 , 124 when moved in another direction.
- this relationship allows for easier opening and closing of the bag and removal of the slider 10 from the bag more difficult.
- FIGS. 10A-13A show a resealable closure mechanism 300 with a void arrangement 301 instead of a notch.
- the void arrangements 301 include an opening, gash, incision, hole, or slit arrangement, all indicated as 301 , formed in the resealable closure mechanism 300 .
- These void arrangements 301 are preferably formed in the upper planes ( FIG. 3, 112 , 122 ) of the resealable closure mechanism 300 near a side edge 302 of the reclosable bag 303 .
- the void arrangements 301 allow the upper planes ( FIG. 9, 112 , 122 ) to expand and, thereby, accommodate and/or conform to the slider device ( FIG.
- the void arrangements 301 ensure a substantial interlocking of the closure profiles ( FIG. 3, 110 , 120 ) when the slider device is in its closed position, maintaining a leak proof bag.
- the void arrangements 301 also facilitate mounting the slider device ( FIG. 10, 304 ) onto the reclosable bag 303 during initial assembly.
Abstract
Description
- The present invention generally relates to closure arrangements for polymer packages, such as, thermoplastic bags. In particular, the invention relates to closure arrangements having resealable profiles with track members and a slider device having a separator structure that grips the track members in opening and closing the bag.
- Many packaging applications use resealable containers to store or enclose various types of articles and materials. These packages may be used to store food products, non-food consumer goods, medical supplies, waste materials, and many other articles. Resealable packages are convenient in that they can be closed and resealed after the initial opening to preserve the enclosed contents. The need to locate a storage container for the unused portion of the products in the package is thus avoided. In some instances, providing products in resealable packages appreciably enhances the marketability of those products.
- Some types of resealable packages are opened and closed using a slider device. The slider device typically includes a separator or spreader-type structure at one end that opens a closure mechanism, having profiled elements or closure profiles, when the slider device travels in a first direction along the mechanism. Conventional resealable packages include a notch formed in the upper flanges of the resealable closure mechanism. The notch serves as a “parking place” for the slider device and also facilitates mounting the slider device onto the resealable package. Additionally, one edge of the notch closest to the side edge of the resealable package creates a stop member for the slider device.
- These conventional resealable packages have several shortcomings. For example, some profiles do not have elements that attach help guide the slider in opening and closing the profile lock members. Conversely, those packages where the profiles do have these elements, the slider is not structured to grip the elements. This creates possible removal of the slider from the bag, in addition to making opening and closing of the bag more difficult. Furthermore, sliders that would be structured to grip these elements would also need to have sidewalls that were structured to conform to a users fingers. This would allow the user to have more of a grip on the slider making opening and closing of the package even easier.
- The primary object of the present invention is to provide a slider device having a separator structure that that grips the profile track members in opening and closing the profile lock members of a resealable plastic bag.
- Another object of the invention is to provide a slider device that allows for easer opening and closing of the package.
- In accordance with the present invention there is provided a slider for use on a reclosable bag. The slider comprises a top wall having a front portion, a middle portion, and a back portion, side walls depending from the top wall wherein the sidewalls have front end portions being spaced wider apart, middle portions curving inwardly toward the middle portion of the top wall, and back end portions being spaced sufficiently close together, and a separator structure depending from the top wall and extending between the side walls. The separator structure has a vertical portion and a horizontal portion with the horizontal portion being substantially wedge-shaped and wider toward the front portion of the top wall and narrower toward back portion of the top wall. The horizontal portion is situated for gripping track members and separating and sealing lock members on a closure mechanism of the reclosable bag. The closure mechanism includes a first closure profile and a second closure profile. The first closure profile has a bonding strip, a first upper plane with a first track member, a first lock member below the first track member, and a guide post below the first lock member. The second closure profile has a sealing flange or bonding strip, a second upper plane with a second track member, a guide post below the second track member, a second lock member below the guide post, and another guide below the second lock member.
-
FIG. 1 is an enlarged, top perspective view of the slider device of the present invention. -
FIG. 2 is an enlarged, bottom perspective view of the slider device of the present invention. -
FIG. 3 is a cross-sectional view of profiled elements usable with the slider device of the present invention. -
FIG. 4 is a perspective view of a resealable closure mechanism with a notch in the upper planes of the closure mechanism profiles. -
FIG. 5 is a perspective view of a resealable bag having a leak proof plastic resealable closure with slider embodying the present invention. -
FIG. 6 is an illustration showing application of the slider being applied at the notch of the resealable closure mechanism profiles. -
FIG. 7 shows a rotary slide applicator used to apply a slider onto a resealable closure mechanism. -
FIG. 8 shows an assembled resealable closure mechanism/slider combination. -
FIG. 9 is an end view of a slider-resealable closure mechanism combination. -
FIG. 10 shows an inverted “L” shaped slit in the upper planes of the resealable closure mechanism profiles. -
FIG. 11 shows a vertical slit in the upper planes of the resealable closure mechanism profiles. -
FIG. 12 shows a punched hole in the upper plane of the resealable closure mechanism profiles. -
FIG. 13 shows a small vertical slit in the upper planes of the resealable closure mechanism profiles. - Referring now to the drawings, an exemplary slider device is shown in
FIGS. 1 and 2 in perspective view and preferably comprises a one-piece unitary, injection molded plastic member with no moveable parts that are moveable with respect to one another. In general, theslider device 10 includes ahousing 20 for slidably engaging the resealable closure mechanism (FIG. 3, 100 ). Thehousing 20 is preferably a multi-sided container which includes atop wall 30. By the term “top”, it is meant that in the orientation of theslider device 10 ofFIG. 1 , thewall 30 is oriented above the remaining portions of thehousing 20. It should be understood, of course, that if thehousing 20 is moved from the orientation shown inFIG. 1 , thetop wall 30 will not be in a top orientation. Thetop wall 30 defines afront portion 31, a middle portion 33, and aback portion 32. Thetop wall 30 also defines twoopen apertures 34 that run parallel to each other. Theapertures 34 aid in providing a structure that may be more easily injection molded. - The
housing 20 includessidewalls 40 havingfront end portions 41 being spaced wider apart,middle portions 43 curving inwardly toward the top wall middle portion 33, and backend portions 42 being spaced sufficiently close together. These features of thesidewall portions 40 facilitate gripping and handling of the user. In preferred embodiments, thesidewalls 40 are injection molded with the remaining parts of thehousing 20. In other words, preferably thehousing 20 comprises a single, unitary, integral piece of material with no additional materials welded, fastened, or bolted together. Thesidewalls 40 can include texturization, such as ribs, to also help improve gripping and handling by the user. - In addition, the
housing 20 includes aseparator structure 50 for separating the first and second closure profiles (FIG. 3, 110 , 120) of the resealable closure mechanism (FIG. 3, 100 ). Theseparator structure 50 extends or depends from thetop wall 30. As may be seen inFIG. 2 , theseparator structure 50 includes avertical portion 51 and ahorizontal portion 52. Thehorizontal portion 52 is of a wedge-shaped construction with the wider end toward thefront portion 31 of thetop wall 30 and the narrower end toward theback portion 32 of thetop wall 30. Furthermore, as best represented inFIG. 8 andFIG. 9 , the horizontal portion is situated for gripping track members (FIG. 3, 113 , 123) and separating and sealing lock members (FIG. 3, 114 , 124) on aresealable closure mechanism 100. - A
resealable closure mechanism 100 is best represented inFIGS. 3, 4 , and 5. The resealable closure mechanism is shown in the specific form of a zipper-type closure mechanism. By the term “zipper-type closure mechanism,” it is meant a structure having opposite interlocking or mating profiled elements that under the application of pressure will interlock and close the region between the profiles. In particular, the zipper-type closure mechanism inFIGS. 3 and 4 is an illustration of one example of aclosure mechanism 100. Theclosure mechanism 100 includes an elongatedfirst closure profile 110 and an elongatedsecond closure profile 120. Typically, the closure profiles 110, 120 are manufactured separately from each other. - In reference to
FIG. 3 , the preferredfirst closure profile 110 depicted includes abonding strip 111, a firstupper plane 112 with afirst track member 113, afirst lock member 114, and aguide post 115. Theguide post 115 aids in holding theclosure mechanism 100 closed and aids in aligning thefirst closure profile 110 with thesecond closure profile 120 for interlocking. Thebonding strip 111 depends or extends downward from theguide post 115 and can be attached to thereclosable bag 200 ofFIG. 5 . - The preferred
second closure profile 120 depicted includes a sealing flange orbonding strip 121, a secondupper plane 122 with asecond track member 123, asecond lock member 124, and twoguide posts closure mechanism 100 closed and in aligning thefirst closure profile 110 with thesecond closure profile 120 for interlocking. Thebonding strip 121 depends or extends downward from theguide post 126 and can be attached to the reclosable bag ofFIG. 5 . - The first and second closure profiles 110, 120 are designed to engage with one another to form the
resealable closure mechanism 100. Thefirst lock member 114 of thefirst closure profile 110 extends from the profile 110 a first distance. Thesecond lock member 124 of thesecond closure profile 120 also extends from the profile 120 a first distance. These first distances that the closure profiles 110, 120 extend are sufficient to allow mechanical engagement, or interlocking, between thefirst lock member 114 of thefirst closure profile 110 and thesecond lock member 124 of thesecond closure profile 120. In particular, thelock members region 127 ofFIG. 5 , to further aid in aligning theprofiles closure mechanism 100. Pulling thefirst closure profile 110 and thesecond closure profile 120 away from each other causes the twoclosure profiles bag 200 ofFIG. 5 . This provides access to the contents of thebag 200 through themouth 210. - As shown in
FIG. 4 , the first and secondupper planes cutout 128 adjacent to thefirst side edge 205 of thereclosable bag 200. Thepreferred notch 128 shown includes three straight edges or sides and is formed twice as long as the length of the separator structure 50 (FIG. 2 ). As to be explained in further detail below, thenotch 128 serves as a “parking place” for aslider device 10 and may also facilitate mounting theslider device 10 onto thereclosable closure mechanism 100 during initial assembly. - In some applications, the closure profiles 112,122 are formed by two separate extrusions or through two separate openings of a common extrusion. Typically, the
reclosable closure mechanism 100 is made of a polymer, plastic material, such as polyethylene or polypropylene. In one example embodiment, the closure arrangement illustrated inFIGS. 3 & 4 is manufactured using conventional extrusion and hot sealing techniques. - A reclosable flexible
plastic bag 200 is represented inFIG. 5 . Thebag 200 has areclosable closure mechanism 100 and aslider device 10 for opening and closing theclosure mechanism 100. Theslider 10 is movable between a closed position of the bag whenslider 10 is adjacent the side edge 206 and an open position of thebag 200 when theslider 10 is adjacent to theside edge 205. In addition to being reclosable, thebag 200 may be resealable; that is,closure mechanism 100 not only closes thebag 200 but also seals thebag 200. - The
reclosable bag 200 includes first and secondopposed panel sections second panel sections side edges 205,206 and meet at afold line 207 in order to form a three-edged containment section for a product within an interior 208 of thebag 200. In the embodiment shown, thefold line 207 comprises thebottom edge 209 of thebag 200. Alternatively, twoseparate panel sections side edges 205, 206 and at thebottom edge 209. Access is provided to theinterior 208 of thebag 200 through amouth 210 at atop edge 211 of thebag 200. In the particular embodiment shown, themouth 210 extends the width of thebag 200. - To construct the
reclosable bag 200 with aslider device 10, the bag may be formed by either a blown extrusion process or by using a preformed roll of film. The film is folded in the form shown inFIG. 5 . Theclosure mechanism 100 may be applied to thefilm panel sections FIG. 3, 111 , 121) to the film sections. The notch orcutout 128 may be cut into the upper planes (FIG. 3, 112 , 122). Next, the side seals 127 atedges 205, 206 may be formed, for example, by ultrasonic crushing. Theslider 10, in particular housing (FIG. 1, 20 ), is then mounted over theclosure mechanism 100, for example, by sliding it onto thenotch 128.FIG. 6 is an illustration showing the application of theslider 10 being applied at thenotch 128 of theclosure mechanism 100. The sequence of these steps may be rearranged as preferred, however it is preferred that theclosure mechanism 100 withnotch 128 is attached topanel sections slider 10. - In
FIG. 7 , the use of arotary slider applicator 400, that doesn't need to spread theslider 10 apart in order to apply theslider 10 onto thereclosable closure mechanism 100, is shown. Thenotch 128 is positioned at the tangent point of therotary applicator 400, to apply theslider 10. As can be shown more clearly inFIGS. 8 and 9 , thenotch 128 traps the first and secondupper planes separator structure 50 and asidewall 40 of theslider device 10. There are pins protruding from therotary applicator 400, which drive theslider 10 around to be applied onto theclosure mechanism 100.Sliders 10 are transferred to therotary applicator 400 via a vibratory bowl feeder and a supply track. Much of the process is the same as U.S. Pat. No. 6,199,256, which is incorporated herein as a reference. An assembled closure mechanism/slider 500 is shown inFIGS. 8 and 9 and illustrates how thereclosable closure mechanism 100lock members slider 10 being applied to thereclosable closure mechanism 100 with the rotary applicator (FIG. 7, 400 ). - An end view of the
slider 10 is shown with thereclosable closure mechanism 100 assembled together inFIG. 9 . Thehorizontal portion 52 of theseparator structure 50 grips thetrack members lock members lock members slider 10 from the bag more difficult. - In another embodiment of the
resealable closure mechanism 300,FIGS. 10A-13A show aresealable closure mechanism 300 with avoid arrangement 301 instead of a notch. Thevoid arrangements 301 include an opening, gash, incision, hole, or slit arrangement, all indicated as 301, formed in theresealable closure mechanism 300. Thesevoid arrangements 301 are preferably formed in the upper planes (FIG. 3, 112 , 122) of theresealable closure mechanism 300 near aside edge 302 of thereclosable bag 303. Thevoid arrangements 301 allow the upper planes (FIG. 9, 112 , 122) to expand and, thereby, accommodate and/or conform to the slider device (FIG. 10, 304 ) when it is in the closed position. Thus, thevoid arrangements 301 ensure a substantial interlocking of the closure profiles (FIG. 3, 110 , 120) when the slider device is in its closed position, maintaining a leak proof bag. Thevoid arrangements 301 also facilitate mounting the slider device (FIG. 10, 304 ) onto thereclosable bag 303 during initial assembly. - Having described the presently preferred embodiments, it is to be understood that the invention may be otherwise embodied within the scope of the appended claims.
Claims (16)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US11/046,927 US20060171610A1 (en) | 2005-01-31 | 2005-01-31 | Internal gripping slider and method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/046,927 US20060171610A1 (en) | 2005-01-31 | 2005-01-31 | Internal gripping slider and method |
Publications (1)
Publication Number | Publication Date |
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US20060171610A1 true US20060171610A1 (en) | 2006-08-03 |
Family
ID=36756614
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/046,927 Abandoned US20060171610A1 (en) | 2005-01-31 | 2005-01-31 | Internal gripping slider and method |
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US (1) | US20060171610A1 (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
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US20060282997A1 (en) * | 2005-06-17 | 2006-12-21 | S2F Flexico | Closure strips for a sheet or a bag, and a resulting sheet or a bag |
US20070094850A1 (en) * | 2005-10-31 | 2007-05-03 | Jonathan Hui | Reclosable container and method of manufacture |
US20070116387A1 (en) * | 2005-10-31 | 2007-05-24 | Global Packaging Sources, Ltd. | Reclosable fastener |
US20070292052A1 (en) * | 2006-06-14 | 2007-12-20 | Jonathan Hui | Fastener strip, slider and reclosable container comprising same |
US20080112652A1 (en) * | 2006-11-09 | 2008-05-15 | Illinois Tool Works Inc. | Method for preventing slider clip release |
FR2924312A1 (en) * | 2007-12-04 | 2009-06-05 | S2F Flexico Sarl | CURSER WITH SOLLICITATION ERGOTS, SACHET EQUIPPED WITH SAME, CLOSURE ASSEMBLY AND DEVICE FOR SETTING IT UP. |
EP2204332A1 (en) * | 2009-01-05 | 2010-07-07 | S2F Flexico | Slide for handling closure profiles with marked folding lines |
US7972064B2 (en) | 2004-12-22 | 2011-07-05 | Cti Industries Corporation | One way valve and container |
WO2014059589A1 (en) * | 2012-10-16 | 2014-04-24 | 泰州億达彩印包装有限公司 | Anti-leakage and fresh-keeping sealed bag, matched slider and interlocking strips thereof |
CN110150799A (en) * | 2018-02-15 | 2019-08-23 | 易嘉然 | Track zipper and connection structure with the track zipper |
US11077989B2 (en) * | 2019-06-21 | 2021-08-03 | Reynolds Presto Products Inc. | Slider device, zipper closure system, and methods of use |
US11453299B2 (en) * | 2009-12-23 | 2022-09-27 | Proterra Operating Company, Inc. | Electric vehicles and charging stations |
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US7972064B2 (en) | 2004-12-22 | 2011-07-05 | Cti Industries Corporation | One way valve and container |
US7604407B2 (en) * | 2005-06-17 | 2009-10-20 | S2F Flexico | Closure strips for a sheet or a bag, and a resulting sheet or a bag |
US20060282997A1 (en) * | 2005-06-17 | 2006-12-21 | S2F Flexico | Closure strips for a sheet or a bag, and a resulting sheet or a bag |
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FR2924312A1 (en) * | 2007-12-04 | 2009-06-05 | S2F Flexico Sarl | CURSER WITH SOLLICITATION ERGOTS, SACHET EQUIPPED WITH SAME, CLOSURE ASSEMBLY AND DEVICE FOR SETTING IT UP. |
EP2204332A1 (en) * | 2009-01-05 | 2010-07-07 | S2F Flexico | Slide for handling closure profiles with marked folding lines |
US11453299B2 (en) * | 2009-12-23 | 2022-09-27 | Proterra Operating Company, Inc. | Electric vehicles and charging stations |
WO2014059589A1 (en) * | 2012-10-16 | 2014-04-24 | 泰州億达彩印包装有限公司 | Anti-leakage and fresh-keeping sealed bag, matched slider and interlocking strips thereof |
CN110150799A (en) * | 2018-02-15 | 2019-08-23 | 易嘉然 | Track zipper and connection structure with the track zipper |
US11077989B2 (en) * | 2019-06-21 | 2021-08-03 | Reynolds Presto Products Inc. | Slider device, zipper closure system, and methods of use |
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