Hidden clip and fastening system for decking

Abstract

One or more hidden clips can be efficiently fastened and mounted to decking planks, e.g., with a tool or manually. A plurality of hidden clips can be included with a strip of clips and separated by a frangible section or tab located between adjacent clips. Each hidden clip can include one or more compression tabs having a sloped or angled cross member transversely extending between first and second extending elements to improve decking fixation.

Claims

1. A deck fixation clip, comprising: a top portion adapted to extend into one or more decking board grooves; a body portion; and one or more bottom compression tabs having a first extending element, a second extending element having a length shorter than the first extending member, and an angled cross member extending transversely between the first and second extending elements, wherein the one or more bottom compression tabs are adapted to compress into a decking frame member.

2. The clip of claim 1, further including a fastener aperture, and a fastener adapted to traverse through the fastener aperture.

3. The clip of claim 1, further including one or more connecting tabs configured to frangibly connect to an adjacent decking clip.

4. The clip of claim 1, further including a plurality of anti-slip ribs provided at a bottom region of the top portion.

5. The clip of claim 1, further including one or more top tracking grooves.

6. The clip of claim 1, wherein the one or more bottom compression tabs are H-shaped.

7. A decking clip assembly, comprising: a plurality of operatively connected decking clips defining a clip strip, each of the plurality of decking clips including: a planar top portion adapted to extend into one or more decking board grooves, the planar top portion defining a leading edge and a trailing edge opposite the leading edge, wherein at least one frangible connecting tab spans between a respective leading edge and trailing edge of adjacent decking clips in the clip strip; a body portion extending vertically downwards from the planar top portion; an aperture extending vertically through the planar top portion and the body portion; and one or more bottom compression tabs extending vertically below the body portion.

8. The assembly of claim 7, wherein the one or more bottom compression tabs are H-shaped.

9. The assembly of claim 7, wherein the plurality of decking clips each include one or more laterally extending alignment tabs disposed between the leading edge and the trailing edge of the planar top portion.

10. The assembly of claim 7, wherein the plurality of decking clips each include one or more top tracking grooves.

11. The assembly of claim 7, further comprising a screw disposed in the aperture of each of the decking clips in the clip strip.

12. The assembly of claim 7, wherein each of the one or more compression tabs comprises a first extending element, a second extending element, and a sloping cross member extending transversely between the first and second extending elements.

13. A decking clip assembly, comprising: a plurality of connected decking clips defining a clip strip, wherein each of the plurality of decking clips includes one or more connecting tabs configured to releaseably connect to an adjacent decking clip in the clip strip, and wherein each of the decking clips comprises: a top planar portion, the top planar portion defining a leading edge and, a trailing edge opposite the leading edge, wherein at least one connecting tab spans between a respective leading edge and trailing edge of adjacent decking clips in the clip strip; a vertically extending portion that extends downward from the top planar portion; an aperture configured to receive a fastener; and a decking clip bottom engaging portion that is defined by the vertically extending portion and that is at least partially planar, and at least partially parallel to the top planar portion.

14. The assembly of claim 13, wherein the decking clip bottom engaging portion comprises a wall portion that extends vertically below a planar surface of the vertically extending portion.

15. The assembly of claim 14, wherein the planar surface of the vertically extending portion is oriented parallel to a top surface of the top planar portion.

16. The assembly of claim 13, wherein the decking clip bottom engaging portion is H-shaped.

17. The assembly of claim 13, wherein the plurality of decking clips each includes one or more laterally extending alignment tabs disposed between the leading edge and the trailing edge of the planar top portion.

18. The assembly of claim 13, wherein the plurality of decking clips each include one or more top tracking grooves.

19. The assembly of claim 13, further comprising a screw disposed in the aperture of each of the decking clips in the clip strip.

20. The assembly of claim 13, wherein each of the decking clip bottom engaging portion comprises a first extending element, a second extending element, and a sloping cross member extending transversely between the first and second extending elements.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIGS. 1-3 show various perspective views of a power tool with a generally straight universal magazine attachment for feeding, advancing, and fixating hidden clips to decking boards, in accordance with embodiments of the present invention.

(2) FIGS. 4-5 are side views of a power tool with a generally straight universal magazine attachment for feeding, advancing, and fixating hidden clips to decking boards, in accordance with embodiments of the present invention.

(3) FIG. 6 is an exploded view of a power tool with a generally straight universal magazine attachment for feeding, advancing, and fixating hidden clips to decking boards, in accordance with embodiments of the present invention.

(4) FIG. 7 is an exploded view of a generally straight universal magazine attachment for feeding, advancing, and fixating hidden clips to decking boards, in accordance with embodiments of the present invention.

(5) FIGS. 8-9 show various perspective views of a power tool with a curved universal magazine attachment for feeding, advancing, and fixating hidden clips to decking boards, in accordance with embodiments of the present invention.

(6) FIG. 10 shows a power tool with a universal magazine attachment in use to fixate hidden clips to a decking board, in accordance with embodiments of the present invention.

(7) FIG. 11 shows a deck board having longitudinal side grooves to receive hidden clips for securing decking boards in place, in accordance with embodiments of the present invention.

(8) FIG. 12 is a perspective view of a hidden clip for use with a power tool having a universal magazine attachment, in accordance with embodiments of the present invention.

(9) FIG. 13 is a front view of the hidden clip of FIG. 12.

(10) FIG. 14 is a back view of the hidden clip of FIG. 12.

(11) FIG. 15 is a side view of the hidden clip of FIG. 12.

(12) FIG. 16 is a top view of the hidden clip of FIG. 12.

(13) FIG. 17 is a bottom view of the hidden clip of FIG. 12.

(14) FIG. 18 is a perspective view of a plurality of interconnected hidden clips provided as a strip of clips for feeding through a universal magazine attachment and fixation to decking boards, in accordance with embodiments of the present invention.

(15) FIG. 19 is a top view of the strip of clips of FIG. 18.

(16) FIG. 20 is a bottom view of the strip of clips of FIG. 18.

(17) FIG. 21 is side view of the strip of clips of FIG. 18.

(18) FIG. 22 is a front view of the strip of clips of FIG. 18.

(19) FIG. 23 is a perspective view of a plurality of interconnected hidden clips provided as a strip of clips, with inserted fasteners, for feeding through a universal magazine attachment and fixation to decking boards, in accordance with embodiments of the present invention.

(20) FIG. 24 is a side view of a screw fastener for use with hidden clips, in accordance with embodiments of the present invention.

(21) FIG. 25 is a top view of the screw fastener of FIG. 24.

(22) FIG. 26 is a perspective view of a beveled hidden clip for use with a power tool having a universal magazine attachment, in accordance with embodiments of the present invention.

(23) FIG. 27 is a side view of the beveled hidden clip of FIG. 26.

(24) FIG. 28 is a top view of a hidden clip for use with a power tool having a universal magazine attachment, in accordance with embodiments of the present invention.

(25) FIG. 29 is a side view of the hidden clip of FIG. 28.

(26) FIG. 30 is a perspective view of a plurality of interconnected hidden clips provided as a strip of clips, for manual manipulation and use to secure decking boards, in accordance with embodiments of the present invention.

(27) FIG. 31 is a top view of the strip of clips of FIG. 30.

(28) FIG. 32 is a bottom view of the strip of clips of FIG. 30.

(29) FIG. 33 is a top perspective view of a hidden clip having stepped and angled anti-slip ribs for use with a power tool having a universal magazine attachment, in accordance with embodiments of the present invention.

(30) FIG. 34 is a bottom perspective view of the hidden clip of FIG. 33.

(31) FIG. 35 is perspective view of a hidden clip having tracking grooves, in accordance with embodiments of the present invention.

(32) FIG. 36 is front view of the hidden clip of FIG. 35.

(33) FIG. 37 is a bottom view of the hidden clip of FIG. 35.

(34) FIG. 38 is a perspective view of a hidden clip having tracking grooves and recess and protruding tab to facilitate registration, in accordance with embodiments of the present invention.

(35) FIG. 39 is a perspective view of a hidden clip having one or more sloped compression tabs to facilitate leveling during fixation, in accordance with embodiments of the present invention.

(36) FIG. 40 is a side view of the hidden clip of FIG. 39.

(37) FIG. 41 is a front view of the hidden clip of FIG. 39.

(38) FIG. 42 is a top view of the hidden clip of FIG. 39.

(39) FIG. 43 is a bottom view of the hidden clip of FIG. 39.

(40) FIGS. 44-46 show a plurality of adjustment kit components for use with different industry composite board layouts and configurations, in accordance with embodiments of the present invention.

(41) While the invention is amenable to various modifications and alternative forms, specifics thereof have been shown by way of example in the drawings and will be described in detail. It should be understood, however, that the intention is not to limit the invention to the particular exemplary embodiments described. On the contrary, the invention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

DETAILED DESCRIPTION

(42) In the following descriptions, the present invention will be explained with reference to exemplary embodiments thereof. However, these embodiments are not intended to limit the present invention to any specific example, embodiment, environment, applications or particular implementations described in these embodiments. Therefore, description of these embodiments is only for purpose of illustration rather than to limit the present invention.

(43) Dimensions and relative proportions of components are merely example embodiments and can be varied unless specifically limited in a given claim. Thus, the dimensions can be varied without departing from the scope of the invention.

(44) Referring generally to FIGS. 1-11, a power tool 100, such as a commercially available nail or fastener gun, can be modified to include a universal magazine 102 system that feeds hidden clips 104 used to fasten decking boards 106 to a deck frame 108. The systems, devices, components, and methods of the present invention disclosed herein are envisioned for use with other alignment, fastening, and attachment applications as well.

(45) The magazine system 102 includes a magazine feed assembly 102a and a nose or hammer assembly 102b. A yoke mechanism 105 can selectively and hingedly connect a portion of a handle 101 of the tool 100 with a portion of the magazine feed assembly 102a. The magazine 102 can be constructed all or in part of a plastic and/or metal material that holds a strip 116 of clips 104 in queue. When an operator places the driver head of the tool 100 where they want to place or deploy a fastening clip 104, the operator depresses downward on the tool 100. The moveable magazine 102a then travels vertically upward with respect to the tool body, about the yoke mechanism 105, which forces the forward-most clip 104 of the strip of clips 116 in the magazine into a knife edge, which cuts that particular clip from the rest of the strip. When the magazine 102a has reached full down stroke, a rod in the magazine can depress the tool's trigger safety catch. The trigger is then pulled and the hammer of the tool can drive a fastener through the hidden clip 104 to a desired depth, thereby securing the clip 104 to the frame board 108 and securing the deck board 106 in place. As depicted in FIG. 11, the decking boards 106 include opposing longitudinal side grooves 107 in which the hidden clips 104 are inserted and secured to facilitate board connectivity.

(46) Certain embodiments of the magazine feed assembly 102a can be generally straight (e.g., FIGS. 1-7), while others can be curved upward or otherwise angled (e.g., FIGS. 8-9). It is noted that the magazine can include various tapers, angles, curves, and the like with various embodiments without deviating from the scope of the present invention.

(47) The magazine feed assembly 102a can include a bottom indexing and alignment feature 102c. The feature 102c can include extending elongated tabs or protrusions adapted to fit on and around a portion of the deck joist or frame 108 to prevent lateral movement and to provide proper alignment of the tool 100 during use.

(48) In certain embodiments, the alignment feature 102c is generally U-shaped and can include a gap of approximately 2 inches between the extending tabs to accommodate seating and securement with the positioned frame board 108. A length of the feature 102c can be defined in and extend down from each of the magazine 102 halves detailed herein. In other embodiments, the indexing and alignment feature 102c can be provided with other components or assemblies of the present invention to facilitate the described functionality.

(49) The magazine assembly 102a is configured to serially feed the hidden clips 104 one at a time via a moveable thruster or clip receiver mounted in a groove on a hammer guide plate 140. A self-coiling spring 127a disposed within the magazine forces the strip of clips 116 forward.

(50) Referring to FIGS. 3-7, the magazine assembly 102a can include a left or first side portion 111 and a right or second side portion 113. Each of the magazine halves includes a rear portion 115 and a front portion 117. The front portion 117 is shaped and configured for receiving and attaching to the various components of the nose assembly 102b. The rear portion 115 can include a magazine end cap 119 attachable to each of the portions 111, 113. The clip strip 116 can be fed or loaded into the magazine assembly 102a via the end cap 119. The end cap 119 can include a shaped aperture 119a adapted to receive the strip 116, including a shaped space to accommodate the clips 104 and corresponding fasteners (e.g., generally T-shaped). The magazine 102 can be molded, cast, stamped, etc.

(51) The left side portion 111 includes a side opening or channel 121 extending along a length of the side 111 and adapted to receive a pusher or thruster device or assembly 127. The pusher device 127 can include a knob 125 or like element for manual manipulation by the operator. The pusher device 127 can include an outer slide plate and an inner slide spring retainer. The pusher device 127 slides along the channel 121 to push or drive the clips 104 of the clip strip 116 toward the nose portion 102b of the magazine assembly 102 such that each time a hidden clip securing action is completed, the next clip in line is automatically advanced and ready for fastening. Coil springs and/or a cam drive can be provided to animate the thruster. A slide groove can attach the magazine to the hammer guide plate.

(52) When loading the magazine with a strip of clips 116, for those embodiments using a tool or similar device during operation, the operator pulls or pushes the pusher 127 rearward to a mechanical release catch. The operator then inserts the strip of clips 116 into the empty magazine, via the end cap 119, and releases the catch. The pusher 127 is thus pulled forward by the spring 127a, thereby forcing the leading clip 104a into the insertion locators in the magazine. A cam mechanism can be utilized to advance the strip of clips in an alternative embodiment. The strip 116 can include a wide variety and number of clips 104, ranging from clip 104a . . . 104n.

(53) A stroke limiter adjusts the fastener depth. The depth can be manually adjustable by turning a thumbscrew, CW or CCW, to increase or decrease depth. A rigidly mounted spring steel knife 150 separates the leading clip as the magazine travels upwards into the hammer guide plate. The assembly is secured to the tool via an attachment plate, which is configured to mount to a variety of commercially available power tools.

(54) As illustrated in FIG. 6, the nose or hammer assembly 102b includes a hammer guide plate 140, a left nose slide 142, a right nose slide 144, a pusher slide bar 146, a nose locate plate 148, a tab cutter blade 150, a left plate gusset 152, and a right plate gusset 154. Attachment holes, devices, and structures can align with those of the tool 100 for the purpose of mounting the guide plate 140 and magazine assembly 102 to the tool 100.

(55) The hammer guide plate 140 provides reinforcement and guidance for the tool 100 hammer mechanism as it extends and retracts during use, and the plate gussets 152, 154 define the side boundaries for the hammer guide plate 140. When the tool is in position to fasten a hidden clip to a surface, the user pushes the tool 100 downwards, sliding the hammer guide plate 140 upwards and pushing tab cutter blade 150, secured to the guide plate, into the magazine. Such action causes the blade 150 to cut or shear the leading clip (e.g., 104a) from the strip 116 and align it for driving. The blade 150 can include one or more cutting edges surfaces to facilitate the described cutting.

(56) When the tool 100 is activated, its hammer forces the fastener 126 to a depth, fastening the clip 104 to the joist (or other surface) below. Each time a hidden clip 104 securing action is completed, the next clip in line is automatically advanced and can be securely located via its tab/recess so that it is ready for fastening.

(57) FIGS. 8-9 show an embodiment of the power tool 100 having a curved universal magazine attachment for feeding, advancing, and fixating hidden clips to decking boards.

(58) FIGS. 12-18 illustrate an embodiment of a hidden clip 104 and a loadable strip 116 of hidden clips. The clip 104 comprises a molded plastic (or similar material) body 110 that includes one or more extending portions 118 and several novel aspects. The extending portions 118 can assist in alignment/registration and feeding of the hidden clip through the structure of the magazine assembly 102a. A center aperture 112 or bore is defined through the vertical height of the clip to permit a screw, nail, or other fastener to secure the clip to a deck frame or other surface. Magazine tabs 114 extend horizontally from an edge of the clip to provide attachment to one or more adjacent clips in a strip of clips 116, as is shown in FIG. 18. The bottom side of the top portion 110a of the clip includes or defines a plurality of anti-slip ribs 129.

(59) The lateral protrusion magazine tabs 114 can be made very small (e.g., 20 thousandths of an inch) so that the tabs 114 do not affect the placement of the clip 114 within the groove 107 of the board 106. The magazine tabs 114 in other embodiments can be in the form of a frangible film, either perforated or non-perforated, connecting the adjacent clips. This film in such configuration defines a tear line between adjacent clips.

(60) As depicted in FIG. 15, the bottom extent of the clip can include one or more compression tabs 120 that are compressed when the clip 104 is secured to the deck frame. The tabs 120 bite downwards into the board 108 for a more secure attachment of the deck boards 106. As such, both a compression and biting functionality can be facilitated with the tabs 120. In certain embodiments, the ribs 129, the bottom tabs 120, or both, can be constructed of a harder material (e.g., harder durometer) than the main clip material to facilitate piercing contact with decking or framing. One or more side walls 131 of the clip 104 can be constructed of a softer material (e.g., softer durometer) then the main clip material to promote slip reduction.

(61) In use, the tabs 120 bind the clip 104 to the deck board 106 when compressed. A dead stop 122 can be defined adjacent to the compression tabs 120 to define the maximum compression at which the clip is seated. A crush aperture or hole 123 can also be defined in the body 110 to allow for future expansion/contraction of adjacent deck boards/flooring. The compression tabs 120 can also provide a universal component to work with different brands of decking with varying center lines, mounting grooves, and like construct requirements.

(62) FIGS. 19-22 show exemplary hidden clips 104 and clip strips 116 in accordance with embodiments of the present invention. Again, extending tabs 114 provide a frangible connection between adjacent clips 104 in the corresponding strip 116. Strips of clips can also be greater or fewer in number than that depicted in the figures.

(63) FIG. 23 depicts the strip 116 of hidden clips 104 with a fastener 126 disposed within the center aperture 112 of each clip. The fasteners 126 are inserted shallowly such that the distal threaded end does not extend more than a minimal amount beyond the bottom extent of the clip. The fastener 126 can be a nail, screw, or other suitable fastener. The exemplary fastener of FIG. 23 is a screw.

(64) The strip 116 of clips can be pre-loaded with the fastener 126 as discussed above. This configuration is useful when utilizing the power tool 100 discussed herein. The pre-loaded fasteners 126 in the strip 116 of clips moves the fastener automatically into alignment with the drive head of the tool. This allows the user to advantageously operate the tool with one hand while holding the deck board with their other hand. This allows the user to install the beck boards far faster than the conventional multi-step method of one-at-a-time hand-placed clips and individually placed fasteners for clip, followed by use of a conventional power tool. The pre-loaded fasteners can also be provided for single clips and strips of clips configured for manual installation.

(65) As shown in FIGS. 24-25, a threaded fastener 126 can include a length of tapered or spiral threading 126a that extends from the head 126b, or proximate the head 126b, all the way to the tip 126c, or substantially to the tip 126c. The head of the fastener can also be provided with a ballistic shape for rapid linear insertion by a power tool. The fasteners 126 may be molded to, be part of a stamped clip body, or added to a strip 116 after its manufacture. The strip 116 of various depicted embodiments shows the fasteners 126 provided prior to insertion into the magazine 102.

(66) A wide variety of fasteners can be used with the clips described herein. Additional example fasteners include concrete screws for fastening the clips to a concrete substrate instead of to wooden joists 108.

(67) The hidden clip 104 of FIGS. 26-27 include an increased beveled edge (double lead-in) transitioning from the top surface of the clip to the non-slip ribs 129, for easier insertion of the clips. The beveled edge also makes the clip able to accommodate variation of the groove height in the deck boards.

(68) FIGS. 28-29 show an embodiment of the hidden clip 104 not having one or more tabs extending out beyond the bottom surface of the clip 104.

(69) FIGS. 30-32 depict the strip 116 of hidden clips 104 for a hand or manually installed and manipulated embodiment of the present invention. One or more “dummy” clips 105 can be included at one or more ends of the strip 116 and adapted for manual grasping by the fingers of a user. The clip 105 facilitates handling of the strip 116 during installation and use, wherein the hidden clips 104 of the strip 116 are manually placed, engaged, and secured to bind the respective clips 104 to the deck board.

(70) The particular clip 105 most remote from the dummy clip 105 is secured to the board with a fastener. After that particular clip 104 is secured, the operator or user can torque the remaining strip of clips 104, or otherwise facilitate breaking, of the secured clip 104 from the strip 116 at the respective frangible tabs 114. This process is repeated until the last clip, which is adjacent to the dummy clip 105, is secured in place. The dummy clip 105 can be removed from the adjacent clip 104 at tabs 114.

(71) Other versions of this embodiment can be adapted for use with a power tool and magazine as well. For example, the dummy clip 105 can be removed prior to insertion of the strip into the magazine of a power tool as discussed herein.

(72) FIGS. 33-34 show an embodiment of the hidden clip 104 having generally T-shaped tabs 114 and one or more extending bottom tab 120 features. Further, the non-slip ribs 129 are defined in a stepped and angled configuration. One or more structures or features of this clip 104 can be included with any of the clip embodiments disclosed herein.

(73) FIGS. 35-37 show an alternative embodiment of the hidden clip 104 including one or more tracking grooves 110c defined into the top surface of the clip to aid in the movement through the magazine. A crush aperture or hole 124 is also defined in the body to allow for future expansion/contraction of adjacent deck boards/flooring.

(74) FIG. 38 shows an alternative embodiment of the hidden clip 104. Opposing sides of the body are provided with a respective recess 128 and protruding tab 118 to enhance the registration of the clip 104 when being advanced through the magazine 102a. This configuration also can be used to prevent the strip of clips 116 from being inserted backwards into the magazine by the user.

(75) FIGS. 39-43 show an embodiment of the hidden clip 104 having one or more angled or sloped bottom tab features 120 to facilitate leveling during fixation. The feature 120 can include a first end portion 120a, a second end portion 120b, and an intermediate sloping crossbar portion 120c. The length of the first portion 120a can be measurably longer than the length of the second portion 120b such that the crossbar portion 120c extends transversely between the end portions 120a, 120b (e.g., FIG. 40) to define the sloped or angled construct of the feature 120. Like other embodiments, the top portion 110a of the clip 104 can include an extending lip or rim portion having a plurality of ribs or like features 129 provided at its bottom surface or region. Other structural constructs can be included to facilitate this fixation leveling feature of the subject hidden clips 104.

(76) In operation, the extending lip of the top portion 110a is inserted within the side groove 107 of a corresponding decking board 106. As detailed herein, the fastener 126 (e.g., a screw) extends through the clip aperture 112 to engage with, and threadably secure to, the underlying deck frame 108. With this embodiment having the sloped compression tab feature 120, the clip 104 is forced to level out parallel to the base of the groove 107 as the fastener 126 sets to its final engagement depth during fixation. The bottom angled structure of the compression tab 120 combats or counters the tendency the clip 104 may have to tilt upon tightening securement, while still promoting biting engagement.

(77) FIGS. 44-46 show various adjustment kit components 160 for use with industry composite board layouts and configurations. The one or more kits can include alignment plate, spacer, or shim elements for specific deck board configurations to facilitate fixation and alignment during operation of the present invention to secure the boards in place with the hidden clips 104. As such, the tool of the present invention can be used to secure various industry boards with varying dimensions and spacing requirements. For instance, boards made by or sold under the brands Armadillo (AL), Fiberon (F), Menards (M), Timber Tech (TT), Trex (T), and many others, can be affixed and secured with the present invention due to the inclusion of varying sized and shaped nose alignment plates, spacer plates, spacer bars, and the like with kits 160 adapted for use with the tool of the present invention. Exemplary spacer elements 170 of 0.110 inches are shown for various AL, F, and TT deck boards, 0.085 inches for various F and T deck boards, and 0.050 inches for various F and T deck boards are provided. It will be understood that a myriad of spacer element 70 sizes and shapes can be provided to accomplish the flexible alignment and fixation to any number of deck board brands, sizes, and configurations without deviating from the scope of the present invention.

(78) As can be appreciated, the user can operate the present invention with one hand while holding the deck board in place. The user also need not reload the tool for each hidden clip to be installed. Thus, the installation process requires less installers and installer time. This reduces costs and improves productivity.

(79) Because various clips of the present invention are bilaterally symmetrical along a plane bisecting the clip along its midline to define front and back halves, the clip can be fastened in either forward or rearward orientations about the vertical axis. Thus, the entire strip of such clips can be inserted into the magazine beginning with either end. This means that the user cannot insert the strip backwards since the front end and rear ends of the strip are the same (e.g., interchangeable). The clips can also be bilaterally symmetrical along a plane bisecting the clip along its midline to define right and left halves.

(80) The clips can be formed of a single material or multiple separate materials. For example, the clips can all comprise single type of plastic material. Alternatively, each clip may comprise multiple different materials in order to provide specialized properties such as those discussed herein.

(81) While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiments, it will be apparent to those of ordinary skill in the art that the invention is not to be limited to the disclosed embodiments. It will be readily apparent to those of ordinary skill in the art that many modifications and equivalent arrangements can be made thereof without departing from the spirit and scope of the present disclosure, such scope to be accorded the broadest interpretation of the appended claims so as to encompass all equivalent structures and products. Moreover, features or aspects of various example embodiments may be mixed and matched (even if such combination is not explicitly described herein) without departing from the scope of the invention.