US3927438A

US3927438A - Flexible tape fastener or hinge

Info

Publication number: US3927438A
Application number: US526103A
Authority: US
Inventors: Melvyn Blake
Original assignee: Norton Co
Current assignee: Saint Gobain Abrasives Inc
Priority date: 1974-11-22
Filing date: 1974-11-22
Publication date: 1975-12-23
Anticipated expiration: 1992-12-23

Abstract

A continuous longitudinal flexible tape has an X-like configuration transversely of its length providing four opposite side portions and quadrants of the X adapted to be adhesively secured to and join together a plurality of members intended to be either fixed relative to each other or hinged to permit articulation of the members about a longitudinal axis of the tape. The tape comprises a first perforated strip with a plurality of longitudinally spaced perforations in a central portion thereof situated between opposite side portions and forms one half of and first and second legs of the X. A second flexible slotted strip forming the second half and third and fourth legs of the X is intermeshed with the first strip and has an imperforate side portion adjoining a slotted side portion with a plurality of open ended elongated slots and elongated integral connecting portions extending transversely between the slots from the imperforate side portion. The first perforated and second slotted strips are assembled by inserting the elongated connecting portions through the perforations so they extend beyond the central portion of the first strip and are secured to at least one backing strip which together form a laminated side portion and fourth leg of the X. As a result the first and second strips are intermeshed, interlocked and hinged together by longitudinally spaced alternating connecting portions of the strips crossing and intersecting one another at the axis of the X-like configuration.

Description

United States Patent [191 Blake [52] US. 16/150; 220/339; 28!]3 R [5]] Int. Cl. FDSD 7/00 [58] Field of Search 220/339, 334, 336;

229/44 R; 248/205 A, 205 R; 281/375, 21, 40, 41, 22, 3 R; 16/150. I51

[56] References Cited UNITED STATES PATENTS 3,85l.353 l2/l974 Wakeman l6/l50 Primary Examiner-0m. V. Larkin Attorney, Agent, or Firm-Walter Fred [57] ABSTRACT A continuous longitudinal flexible tape has an X-like configuration transversely of its length providing four opposite side portions and quadrants of the X adapted to be adhesively secured to and join together a plural- Dec. 23, 1975 ity of members intended to be either fixed relative to each other or hinged to permit articulation of the members about a longitudinal axis of the tape. The tape comprises a first perforated strip with a plurality of longitudinally spaced perforations in a central portion thereof situated between opposite side portions and forms one half of and first and second legs of the X. A second flexible slotted strip forming the second half and third and fourth legs of the X is intermeshed with the first strip and has an imperforate side portion adjoining a slotted side portion with a plurality of open ended elongated slots and elongated integral connecting portions extending transversely between the slots from the imperforate side portion. The first perforated and second slotted strips are assembled by inserting the elongated connecting portions through the perforations so they extend beyond the central portion of the first strip and are secured to at least one backing strip which together form a laminated side portion and fourth leg of the X. As a result the first and second strips are intenneshed, interlocked and hinged together by longitudinally spaced alternating connecting portions of the strips crossing and intersecting one another at the axis of the X-like configuration.

7 Claims, 6 Drawing Figures U.S. Patent Dec. 23, 1975 FLEXIBLE TAPE FASTENER OR HINGE BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to continuous length flexible tape structures adapted to be adhesively secured to and for either fixedly or hingedly connecting a plurality of adjacent members together and method of making the tape structure.

2. Description of the Prior Art I-Ieretofore, various tape structures for joining or hinging adjacent members together are disclosed and described in US. Pat. No. 3,751,760 granted to Wakeman and the various patents mentioned therein. The applicants continuous tape construction is similar to but an improved form of the continuous tape structures disclosed by Wakeman in that it has fewer easily assembled integral formed elements and adhesive joints subjected to stress which reduces the assembly time and cost of constructing and which has greater resistance to and uniformly distributes the various forces encountered thereby. Applicant is also aware of the short individual X-like hinge structures disclosed in US. Pat. No. 792,460 granted June 13, 1902 to Richter et al., and in US. Pat. No. 3,442,415 granted May 6, 1969 to Glass. The hinges are not longitudinally continuous but a plurality of hinges, one of which is stitched together at the axis of the X, and the other made of two flexible members one inserted through a single aperture in the other.

SUMMARY OF THE INVENTION The instant invention relates to a continuous flexible tape structure or fastener with an X-like cross sectional configuration which is cut to desired length and adhesively secured to edges and/or side surfaces of adjacent members to either fixedly fasten or hingedly connect them together. Elements of the tape structure comprise a first perforated flexible strip with a plurality of longitudinal spaced apertures and integral connector portions in a central portion between two opposite side portions adapted to be adhesively secured to the members to be joined. A second slotted flexible strip has a slotted side portion with a plurality of longitudinally spaced integral elongated connector portions extending transversely, between elongated slots, from an imperforate opposite side portion of the slotted strip through and beyond the spaced apertures or slots in the first perforated strip to a discontinuous opposite edge of the slotted strip interrupted by entrances to the elongated slots. At least one backing strip is adhesively secured to and maintains the spaced relationship of the elongated connectors and hingedly interconnects the first and second strips together. The backing strip extends a predetermined width inwardly from the entrances of and closes off the greater part of the elongated slots, to provide a laminated side portion adjacent the remaining openings of the elongated slots in the central portion of the second strip.

Preferably pressure sensitive adhesive is applied to the appropriate opposite side faces of the opposite side portions for securing them to the appropriate surfaces of members to be joined and protectively covered by removable release strips.

A method of constructing the tape structure having an X-like configuration comprises perforating a first continuous strip of flexible material to provide a plurality of longitudinally spaced apertures and integral connecting portions in the central portion extending between opposite side portions of the first strip; then, slotting a side portion of a second continuous strip of flexible material to provide a plurality longitudinally spaced elongated slots and integral elongated connectors spaced so they correspond to substantially the size and spacing of the apertures in the first strip and extend transversely between an entrance of the slots at one side edge to at least the center of and an opposite side portion of the second strip and thereafter, the elongated connector portion of the second strip is inserted and passed through and beyond the apertures in the first strip so they cross the connecting portions of the first strip at crossing points on the longitudinal axis of the X-like configured structure.

Lastly, at least one backing strip is adhesively secured to the protruding end portions of the elongated connecting portions extending beyond the first strip, of sufficient width to close off the greater part of the elongated slots and provide a laminated side portion hingedly connecting and interlocking the first and sec- 0nd strips together.

Therefore, it is the principal object of the invention to provide an easily applied continuous longitudinal hinge or joint tape structure having a minimum number of integral parts and adhesive joints subjected to the various loads, forces and stresses produced by the adjacent members joined by and to which the tape is adhesively secured and which has greater resistance to and uniformly distributes the various loads, stresses and forces produced.

DESCRIPTION or THE DRAWINGS FIG. 1 is a perspective view of an assembled continuous length of the tape structure of the invention with an X-like configuration in cross-section.

FIG. 2 is a perspective view of a first continuous integral perforated strip forming one-half and the first and second legs of the X-tape structure with adhesive and protective release strips thereover as shown in FIG. 1.

FIG. 3 is a perspective view of a second slotted strip with adhesive and a protective release strip on a side portion thereof prior to being assembled and retained to the first strip by a backing strip adhesively secured thereto to form the remaining half and the third and fourth legs of the X-tape as shown in FIG. 1.

FIGS. 4, 5 and 6 are partial cross sectional views showing different arrangements of the tape of the invention attached to and joining two adjacent members together.

DESCRIPTION OF THE PREFERRED EMBODIMENT(S) In FIG. 1 of the drawings there is shown the assembled continuous flexible tape structure 10 of the invention having an X-like configuration in cross section with a central longitudinally axis from which four quadrants and legs of the X extend radially outward. The tape structure comprises a first perforated flexible integral continuous strip 12 forming one half and opposed first and second legs of the X. The flexible strip 12, more clearly shown in FIG. 2, has opposite side edges,

opposite side portions

12a and 12b adjacent the opposite side edges and a relatively narrow central portion 12c therebetween through which the longitudinal axis 3 of the X and tape passes.

In the central portion 12c are a plurality of apertures 12d spaced longitudinally along the axis and which may be of various sizes, shapes and spacing. Preferably the apertures are of substantially identical size, of rectangular shape, equally spaced longitudinally and transversely of the axis. Connecting the opposite side portions or marginal web portions 120 and 12b are integral connection portions l2e equally spaced between and by the apertures 12d in the central portion 12c.

On each of the

opposite side portions

12a and 12b are opposed side faces to at least one of which there is preferably applied a layer of pressure sensitive adhesive 14 protected by release strips or cover strips 16 which are removable for attachment to the members to be joined. However, the adhesive can be of any other suitable type and may be omitted and applied at the time the tape structure is attached to the member whereby the release strips 16 are not required. In the arrangement shown each of the covers or release strips 16 are applied to and held by the adhesive 14 to one side face, of each side portion and on opposite sides of the strip 12.

Referring to FIGS. 1 and 3 there is shown a second continuous slotted flexible strip 18 forming the second half and opposed third and fourth legs of the X. The slotted strip 18 has opposite side edges and

opposite side portions

18a and 18b, of which 18a is preferably a third substantially continuous or imperforate side portion and the other 18!) a fourth or slotted side portion with a discontinuous side edge interrupted by the entrances to a plurality of substantially identical elongated slots 18c. The elongated slots 18c extend inwardly from the open ends or entrances at the interrupted edge transversely to the opposite side portion 180 and are preferably equally spaced longitudinally along the strip 18 to correspond with the spacing of the connecting portions He in the strip 12.

Between the elongated slots 180 are a plurality of substantially identical equally spaced elongated projections, tongues or integral connecting portions 18d extending transversely from the side portion 18a to the interrupted edge of the opposite slotted side portion 18b. Preferably the transverse dimension or length of each of the elongated slots and connecting portions or tongues 18d is substantially identical and equal to the total transverse dimension or width of one of the

opposite side portions

12a or 12b and perforations 12d in the central portion 120 of the first strip 12. The longitudinal dimension or height or width of each of the slots 18c measured longitudinally of the strip 18 is substantially identical and preferably slightly greater than the longitudinal dimension or width of the connector portions 12d received therein. Likewise, the longitudinal dimension or height of each of the slots 12d measured longitudinal of the strip 12 is substantially identical and preferably slightly greater than the longitudinal dimension or height or width of the elongated connecting portions 18d inserted therein.

A layer of pressure sensitive adhesive 14 and another protective cover of release strip 16 is preferably ap plied to one side face of the side portion 18a for attachment to one of the members to be joined. However, as before the adhesive could be applied to either the members or the side portions at the time the tape structure 10 is used to join the members whereby the adhesive and release strips are not required before hand.

The tape structure 10 shown in FIG. 1 is assembled by inserting the protruding elongated tongues or connecting portions 18d of strip 18 through the apertures or openings 12d. Then, a continuous backing strip 20 of substantially the same longitudinal length and transverse width as the opposite side portion 18:: is adhesively secured to a side face, of each of the elongated connecting portions 18d, preferably on the same side of the portion 18b and the strip 18 on which the release strip 16 is situated on the portion 18a, as shown by phantom lines in FIG. 3. Hence, a plurality of portions 18e of the elongated connecting portion 18d and of the slots 18c remain uncovered between the backing strip 20 and the side portion 18a.

As a result of flexible first and

second strips

12 and 18 are intermeshed, interlocked, free to move or pivot relative to each other about the longitudinal axis of the X-tape structure 10, and prevented from moving axially any substantial amount relative to each other in the longitudinal direction.

After assembly a layer of adhesive and another cover or release strip 16 is applied to the opposite exposed side face of each of the elongated connection portions 18d and the completed or laminated side portion 18b, opposite the backing strip 20 for attaching to a member to be joined. The longitudinal axis of the X-tape structure 10 passes substantially through the points where the connecting

portions

12e and 18d of the

strips

12 and 18 cross one another. However, the crossing points and longitudinal axis may be located anywhere or shift to one or more positions between the opposite sides and within the transverse width of the openings or apertures 12d.

Referring to FIG. 4, there is shown an enlarged cross sectional view of the tape 10 adhesively secured to opposite side portions of aligned and joined members A and B. The members A and B have edges situated close to one another and on opposite sides of the respective alternating connecting

portions

122 and 18d of the first and second

flexible strips

12 and 18 of the tape 10.

Either one or both of the members may be fixed relative to the other. When both of the members A and B are fixed then the tape acts to maintain the edges together in a fixed relationship.

However, when one of the members A and B is fixed the other can be pivoted in either direction up to 180 relative to the fixed member and if desired fixed at the desired angular position. During the pivotable movement the connecting portions l2e and 18d of

strip

12 and 18 cross one another and are free to bend and move relative to each other since they are not attached to the members joined.

In FIG. 4 there is shown in phantom lines the position of the member B after it has been pivoted or swung from the aligned position shown. During the 90 movement the connecting portions l2e bend at the junction with the secured portions 12!; and into alignment therewith while the adjacent unattached portions 18a of the elongated connecting portions of 18d bend at the junction with the attached side portions 18b and move within the apertures 12d into alignment with the side portion 18b.

In FIG. 5 there is shown the tape 10 with the

side portions

12a, 12b, 18a and 18!; attached to edges and adjacent side surfaces of the members C and D. Hence the members C and D are hingedly joined together and pivotal relative to one another to various positions indicated by phantom lines which by example only show the extreme positions of the member D relative to member C.

FIG. 6 discloses another arrangement in which the

side portions

12a and 12b are attached to the edges and the side portions 18a and 181) are attached to the adjacent side surfaces of the members E and F. This arrangement allows either member to pivot relative to each other to the positions shown in phantom lines whereby either right or left hand corners are formed. Also, one member can be hinged relative to the other so as to provide a hinged member or cover for a container or like structure.

The

strips

12, 18 and 20 may be formed from any suitable type of flexible sheet material such as woven fabric of natural or synthetic fibers, leather, thin sheet metal, sheet plastic and paper. The sheet plastic material may be polypropylene, polyvinyl chloride, polyvinyl fluoride, cellulose acetate, cellulose triacetate polyamide and polyester at least 0.0005 of an inch (0.0!27 mm) thick. Preferably the

strips

12, 18 and 20 are made of high tensile strength polyester or polypropylene plastic sheet material or. film 0.002 of an inch (0.0508 mm) thick and the protective peel or release strip may be made of any suitable sheet paper or plastic sheet material such as, polyvinyl fluoride 0.001 of an inch (0.0254 mm) thick having either a conventional release coating thereon or a smooth glossy surface to which the pressure sensitive adhesive does not permanently adhere to. The tape 10 is applied to the members to be joined in any well-known and obvious manner. For example, when the X-tape 10 is manufactured without adhesive and release strips the adhesive can be first applied to either the member or the side portions of the tape, which is then aligned with and pressed onto the members. When the tape has preapplied pressure sensitive adhesive and release strips then one end portion of the release strip is peeled away to expose a portion of the adhesively coated side portion which is aligned and pressed onto the member. Thereafter, the release strip is slowly removed while simultaneously aligning and pressing the remaining exposed adhesive coated side portion of the tape onto the desired edges or surfaces of the members. The tape structure can be applied to members made of wood, metal, solid or foamed plastic, glass, plywood, paper, particle board, corrugated board, fiber board, honeycomb, laminates, plaster board and any other known material.

A process of making the X-tape structure 10 may comprise providing a first roll of the desired size strip of flexible material for producing the perforate strip 12 and feeding the imperforated strip 12 through conventional rotary or straight flat cutting dies or punches adapted to perforate the central portion 12c of the strip 12 at equally spaced intervals with preferably identical square or rectangular shaped apertures or holes 12d.

If desired, a layer of the pressure sensitive adhesive 14 and a release strip 16 or cover, may be applied to one side face of each of the side portions 120 and 12b on opposite sides of the apertures 12d and on opposite sides of the strip 12. This can be done by passing the strip over a first adhesive applicator roll positioned on one side of the strip and another applicator roll on the opposite side of the strip. Thereafter, the first strip 12 with the layers of adhesive can be partially dried by passing the strip through an oven or between a plurality of heat lamps and then applying the release strips or covers 16 thereover. The release strips or covers 16 are preferably in rolls and applied by feeding both the release strips and perforated strip simultaneously into the nip and between pressure rolls which press them tightly together.

Likewise, a second roll of similar continuous flexible strip material for producing the second slotted strip 18 can be fed through conventional rotary or straight cutting dies adapted to cut the equally longitudinally spaced elongated slots of identical rectangular shape in one side portion 18b of the strip. The slots being of slightly greater longitudinal dimension, width, or height than the apertures 12d in the perforated strip but with the same spacing have entrances interrupting the adjacent edge of the strip and extend inwardly between elongated connecting portions 18d a transverse distance beyond the center of the strip to the imperforate opposite side portion 18a of the strip 18. If desired a layer of the pressure sensitive adhesive 14 can be applied by an applicator roll to one side face of the imperforate side portion 18a which is then partially dried and onto which a continuous release strip or cover 16 is applied by simultaneously feeding them both into the nip and between pressure rolls as described above in making the perforate strip 12.

The first perforated strip 12 and second slotted strip 18 are then brought together with the release strip 16 of the second slotted strip facing parallel to and offset from the release strip 16 on the first perforated strip 12 and in timed relation so that end portions and side edges of the elongated connecting portions 18d between the elongated slots 18c are automatically aligned with the perforation 12d and one side thereof in the central portion 12c of the first perforated strip 12. Then the aligned strip can be passed either between a pair of rolls having spaced intermeshing shallow teeth and spaces of smaller size than but with the same spacing as the apertures 12d or over a toothed roll with similarly spaced teeth whereby the teeth insert or push the end portions of the elongated connecting portions 18d through the apertures 12d.

Thereafter, guides or edge rolls can be positioned to gradually and simultaneously separate, raise and move the offset second strip 18 toward the center of the first perforated strip 12 until the second strip 18 is perpendicular to the first strip whereby the elongated portions are pushed further into and beyond the apertures.

A pair of applicator rolls may be arranged to apply a layer of the adhesive 14 to both side faces of the protruding elongated portions 18d of the second strip 18 which is then partially dried.

A backing strip 20 and another release strip 16 from rolls can then be simultaneously applied to the adhesively coated opposite side faces of the slotted side portion 18b by passing between pressing rolls. The release strip 16 is applied to the side face situated on the opposite side of the strip from the first release strip applied thereto and the backing strip 20 permanently fixed by the adhesive to the opposite side face situated on the same side of the second strip 18 as the first applied release strip.

Lastly, the strips of the assembled tape are brought together and rolled upon a take up roll from which continuous lengths of the X-tape are cut for use.

What is claimed is:

l. A flexible tape having an X-like configuration, in cross section, a central axis and four legs providing a longitudinally continuous structure adapted to extend along, be secured to and join a plurality of adjacent members together so that the central axis of the X-like configuration coincides generally with a juncture formed by the members to be joined, comprising:

a first flexible perforated strip of predetermined width forming a first half of the X having opposite side edges, opposite side portions adjacent the side edges forming first and second legs of the X and adapted to be fastened to the members to be joined,

a central portion between the opposite side portions and through which the central axis of the X passes,

a plurality of apertures in the central portion spaced longitudinally along the central axis, a plurality of longitudinally spaced connecting portions between the apertures in the central portion integral with and connecting the opposite side portions;

a second slotted flexible strip of predetermined width forming a second half of the X having opposite side edges, opposite side portions adjacent the side edges forming third and fourth legs of the X, and adapted to be fastened to the members to be joined,

a plurality of longitudinally spaced elongated slots in one of the opposite side portions of the second strip extending inwardly a predetermined distance from one of the side edges interrupted by entrances to the slots to the other one of the opposite side portions of the second strip,

a plurality of longitudinally spaced elongated integral connecting portions between the slots in a slotted one of the opposite side portions and extending from the other one of the opposite side portions through the apertures and beyond the central portion in the first perforated strip;

a continuous flexible elongated backing strip of a transverse width less than the length of the slots adhesively secured to at least one side face of the slotted side portion and elongated connecting portions therein, whereby the first and second flexible strips are locked and hingedly connected together in an intermeshing and crossing relationship to form the continuous X-like tape structure.

2. A flexible tape according to claim 1 further comprising:

a layer of pressure sensitive adhesive on a side face, of each of the opposite side portions, situated on opposite side faces of each of the first and second strips; and

a removable release strip on and protectively covering the layer of adhesive on the side face of each of the opposite side portions.

3. A flexible tape according to claim 1 wherein the plurality of apertures in the central portion of the first perforated strip are substantially equally spaced, of substantially identical size, rectangular shape, and of substantially the longitudinal height of the elongated connecting portions of the second slotted strip within the apertures.

4. A flexible tape according to claim 1 wherein the first, second and backing strips are made of thin flexible sheet material selected from a group consisting of paper, natural and synthetic fabric, metal and plastic.

5. A flexible tape according to claim 2 wherein the release strips are made of thin sheet flexible material selected from a group consisting of paper and plastic and having a release coated surface to which the adhesive does not permanently adhere to.

6. A flexible tape according to claim 1 wherein the opposite side portions and the integral connecting portions in the central portion of the first strip are imperforate.

'7. A flexible tape according to claim 6 wherein the backing strip, the other one of the opposite side portion adjacent the slotted side portion and the elongated integral connecting portions of the second strip are i 1 i l

Claims

1. A flexible tape having an X-like configuration, in cross section, a central axis and four legs providing a longitudinally continuous structure adapted to extend along, be secured to and join a plurality of adjacent members together so that the central axis of the X-like configuration coincides generally with a juncture formed by the members to be joined, comprising: a first flexible perforated strip of predetermined width forming a first half of the X having opposite side edges, opposite side portions adjacent the side edges forming first and second legs of the X and adapted to be fastened to the members to be joined, a central portion between the opposite side portions and through which the central axis of the X passes, a plurality of apertures in the central portion spaced longitudinally along the central axis, a plurality of longitudinally spaced connecting portions between the apertures in the central portion integral with and connecting the opposite side portions; a second slotted flexible strip of predetermined width forming a second half of the X having opposite side edges, opposite side portions adjacent the side edges forming third and fourth legs of the X, and adapted to be fastened to the members to be joined, a plurality of longitudinally spaced elongated slots in one of the opposite side portions of the second strip extending inwardly a predetermined distance from one of the side edges interrupted by entrances to the slots to the other one of the opposite side portions of the second strip, a plurality of longitudinally spaced elongated integral connecting portions between the slots in a slotted one of the opposite side portions and extending from the other one of the opposite side portions through the apertures and beyond the central portion in the first perforated strip; a continuous flexible elongated backing strip of a transverse width less than the length of the slots adhesively secured to at least one side face of the slotted side portion and elongated connecting portions therein, whereby the first and second flexible strips are locked and hingedly connected together in an intermeshing and crossing relationship to form the continuous X-like tape structure.

2. A flexible tape according to claim 1 further comprising: a layer of pressure sensitive adhesive on a side face, of each of the opposite side portions, situated on opposite side faces of each of the first and second strips; and a removable release strip on and protectively covering the layer of adhesive on the side face of each of the opposite side portions.

7. A flexible tape according to claim 6 wherein the backing strip, the other one of the opposite side portion adjacent the slotted side portion and the elongated integral connecting portions of the second strip are imperforate.