EP3892795B1 - Hidden fastener unit and related method of use - Google Patents
Hidden fastener unit and related method of use Download PDFInfo
- Publication number
- EP3892795B1 EP3892795B1 EP21169742.0A EP21169742A EP3892795B1 EP 3892795 B1 EP3892795 B1 EP 3892795B1 EP 21169742 A EP21169742 A EP 21169742A EP 3892795 B1 EP3892795 B1 EP 3892795B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fastener
- groove
- board
- wing
- spacer block
- 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.)
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Links
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- 125000006850 spacer group Chemical group 0.000 claims description 212
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- 230000007704 transition Effects 0.000 description 21
- 238000010276 construction Methods 0.000 description 13
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- 239000002131 composite material Substances 0.000 description 7
- 239000002184 metal Substances 0.000 description 5
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- 239000000919 ceramic Substances 0.000 description 3
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- 238000009434 installation Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
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- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
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Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
- E04F15/02044—Separate elements for fastening to an underlayer
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
- E04F15/02177—Floor elements for use at a specific location
- E04F15/02183—Floor elements for use at a specific location for outdoor use, e.g. in decks, patios, terraces, verandas or the like
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F13/00—Coverings or linings, e.g. for walls or ceilings
- E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
- E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
- E04F13/0801—Separate fastening elements
- E04F13/0803—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements
- E04F13/081—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements with additional fastening elements between furring elements and covering elements
- E04F13/0821—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements with additional fastening elements between furring elements and covering elements the additional fastening elements located in-between two adjacent covering elements
- E04F13/0826—Separate fastening elements with load-supporting elongated furring elements between wall and covering elements with additional fastening elements between furring elements and covering elements the additional fastening elements located in-between two adjacent covering elements engaging side grooves running along the whole length of the covering elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F15/00—Flooring
- E04F15/02—Flooring or floor layers composed of a number of similar elements
- E04F15/02044—Separate elements for fastening to an underlayer
- E04F2015/0205—Separate elements for fastening to an underlayer with load-supporting elongated furring elements between the flooring elements and the underlayer
- E04F2015/02066—Separate elements for fastening to an underlayer with load-supporting elongated furring elements between the flooring elements and the underlayer with additional fastening elements between furring elements and flooring elements
- E04F2015/02077—Separate elements for fastening to an underlayer with load-supporting elongated furring elements between the flooring elements and the underlayer with additional fastening elements between furring elements and flooring elements the additional fastening elements located in-between two adjacent flooring elements
- E04F2015/02094—Engaging side grooves running along the whole length of the flooring elements
Definitions
- the present invention relates to a fastener unit configured to fasten workpieces, such as boards, to support structures, such as joists, and more particularly to a fastener unit that engages a groove in the side of a board to secure the board to a support structure.
- the structures typically include boards that are placed side-by-side one another.
- the boards typically are arranged to extend cross support structures, such as joists, disposed under the boards at an angle, sometimes at a right angle.
- the boards usually are fastened to the joists using fasteners, such as nails or screws.
- the nails or screws can frequently become discolored over time, or can work themselves loose from the board and project upward from the board surface. Not only are these results aesthetically displeasing, they can present safety hazards.
- hidden fastener systems that fit loosely within grooves of adjacent boards.
- These hidden fasteners typically include a biscuit-shaped upper plate having two horizontal flanges that fit into the grooves defined by the sides of adjacent deck boards, a single center hole through which a fastener extends to secure to the underlying joist, and a base that extends downward from the upper plate to an underlying joist. While the horizontal flanges can engage the grooves, these elements typically do not engage those grooves forcibly enough to tack the boards to the underlying joist and prevent them from moving during expansion and contraction under changing temperatures. These systems typically also require a user to manually hold the plate in alignment with one or more grooves of the boards as the fastener is advanced, which can be cumbersome.
- the flanges are of a fixed thickness so that if that thickness is mismatched relative to a groove, the plate cannot fit in the groove, let alone secure the board to the underlying joist.
- a support structure includes a double or triple joist, with two or more joists positioned immediately adjacent one another, the foregoing fastener systems might not be properly sized to conceal those joists or fit within the associated confined spaces.
- US 2005/0063771 A1 which relates to a fastener for securing deck boards to a support structure without the need for driving screws or nails through the deck boards.
- the fastener includes two horizontal flanges that fit into slots cut into the sides of adjacent deck boards, a center hole for securing the fastener to the support structure and deformable, resilient elements that bridge the gap between adjacent deck boards during fastening yet compress inward when the boards swell and expand.
- the fastener unit includes a spacer block, a grip element extending from the spacer block and configured to fit in and engage a groove of the board, and at least one element extending from the spacer block, configured to secure the spacer block adjacent the groove to establish a gap between the board and another board.
- the element can be a resilient compression element that is vertically compressible so that portions of it can be compressed from an open mode to a compressed mode.
- the resilient compression element In the compressed mode, the resilient compression element is sized and dimensioned smaller than a width of the groove so that the element can fit within the groove. After placement in the groove, the portions can expand within the groove to forcibly engage the groove, thereby securing the resilient compression element and the joined spacer block adjacent the groove and a side surface of the board.
- the resilient compression element extends laterally from the spacer body, and in the same direction as a portion of the grip element.
- the grip element and resilient compression element can extend rearwardly, from a rearward face of the spacer body, an equal amount or distance.
- the resilient compression element can include a front edge that does not extend forwardly, from a forward face of the spacer body, while the grip element can extend forwardly another distance from the forward face of the spacer body.
- the spacer body is of a thickness extending from a forward face and a rearward face.
- the thickness can be optionally less than 0.200 inches, further optionally less than 0.250 inches, and even further optionally less than 0.500 inches to provide a corresponding gap between adjacent boards One inch is approximately equal to 25.4 mm.
- the resilient compression element includes first and second portions, optionally in the form of wings, plates, rounded sections, ellipsoids, polygonal elements, and the like, any of which can be referred to as wings herein, that function similar to resilient springs.
- These portions can be pinched toward one another, to convert the resilient compression element from an open mode to a compressed mode.
- the portions In the compressed mode, the portions can be located in the groove of the board, which optionally can be 1/8 inch to 3/8 inch wide or other dimensions depending on the application. When the portions are released, they can forcibly engage the groove to hold the fastener unit centered in the groove.
- the resilient compression element can be joined with the spacer body at a fracturable joint.
- This fracturable joint can include a zone of weakness, such as a thinned region, a region with perforations or holes, an area with a brittle material, or some other weakening portion so that a user can manually break off the resilient compression element from the spacer body and fit the fastener unit in a particular location, for example, a confined space.
- the grip element can be in the form of a channel.
- the channel can be a c-channel that is turned upside down so that its opening faces downward.
- Associated protrusions of the channel can be configured to engage a lower interior surface of the board groove and effectively bite into that surface when the fastener is tightened down, to pull the grip element and its protrusions into that surface. In turn, this provides enhanced securement of the board to the underlying support structure, such as a joist.
- the fastener unit can be equipped with an additional resilient compression element, projecting from the spacer body on opposite lateral sides of the spacer body.
- the first and second resilient compression elements can cooperate to forcibly hold the spacer body and fastener unit in place adjacent the groove during installation of the fastener.
- a user can use both hands to manipulate a tool, such as a power drill, to install the fastener.
- a tool such as a power drill
- a user can place multiple fastener units, place an adjacent board, and later come back to fasten down one or more boards with the fastener units.
- the spacer body defines a fastener hole that can include an upper portion and a lower portion.
- These upper and lower portions can have different diameters or dimensions to accommodate different screw types.
- the lower portion can include a diameter that is less than a diameter of the upper portion so that the tip of the screw can fit within the lower portion, while threads above that tip can fit within the upper portion.
- the screw can be partially threaded into engagement with the spacer body, and in particular the interior surfaces of a first fastener hole defined by the spacer body.
- the grip element can be constructed from a first material, such as a metal and/or composite, while the spacer body, resilient compression element and other features can be constructed from a polymeric material.
- the polymeric material can be overmolded to the grip element to secure the grip element thereto, with the grip element at least partially entrapped in the spacer body.
- a fastener unit can include a spacer body defining a first fastener hole having first and second different internal dimensions, a threaded fastener supported by the spacer body within the first fastener hole, a grip element joined with the spacer body and configured to fit within and engage a groove of a board, and first and second joist legs extending downward from the spacer body and configured to straddle and clampingly engage sides of an underlying joist.
- the fastener unit can be constructed so that one or more joist legs are joined with the spacer body at a fracturable joint so that the leg can be selectively manually removed, depending on the placement of the fastener unit relative to one or more joists or within other confining spaces.
- the fastener unit can include a spacer block and a grip element disposed transversely relative to the spacer block, extending from forward and rearward surfaces of the spacer block.
- a first joist leg can extend from a first lateral side of the spacer block and a second joist leg can extend from a second lateral side of the spacer block.
- the first and second joist legs extend outwardly and downwardly from the spacer block.
- One or both of the joist legs includes a stabilizer bar extending from the joist leg a predetermined distance.
- the stabilizer bar can be mounted below the spacer block and selectively positioned so that it can engage a bottom surface and/or side surface of a board, below a groove of the board, placed adjacent the fastener unit.
- the stabilizer bar, joist legs and/or the spacer body can engage one or more boards, adjacent which the spacer unit is placed, in multiple locations to thereby provide multiple points of contact with the spacer unit and those boards, and thereby stabilize the fastener unit in a particular orientation, optionally holding the fastener associated with the spacer unit in an upright, vertical orientation, ready for engagement by a tool.
- the fastener unit can include a spacer block and a grip element disposed transversely relative to the spacer block, extending from forward and rearward surfaces of the spacer block.
- a first joist leg can extend from a first lateral side of the spacer block and a second joist leg can extend from a second lateral side of the spacer block.
- the first and second joist legs extend outwardly and downwardly from the spacer block.
- the grip element can include one or more pressure distribution feet at opposing ends of the grip element. When a fastener of the unit is tightened down, such a pressure distribution foot can ensure most of the force is distributed at one or more of the opposing ends of the grip element, rather than near the spacer body. With certain types of grooved boards having a chamfer under the groove along a board bottom surface, this force distribution, deep within the groove, can impair or prevent tipping of the board caused by the tightening down of the fastener unit.
- the fastener unit can include a spacer block and a grip element disposed transversely relative to the spacer block, extending from forward and rearward surfaces of the spacer block.
- a first joist leg can extend from a first lateral side of the spacer block and a second joist leg can extend from a second lateral side of the spacer block.
- the first and second joist legs extend outwardly and downwardly from the spacer block.
- the spacer block can be a timing spacer block that is of a predetermined height set so that the spacer block engages an underlying joist or other support, optionally while a fastener of the unit is being tightened down to draw the fastener unit toward the joist or other support. With this timing spacer block, the fastener unit does not engage the grip element against the interior surfaces of the groove in such a way so as to pull the groove downward with too much force, which may cause tipping of the board in some circumstances.
- the fastener units and related methods of use disclosed herein provide benefits in hidden fasteners that previously have been unachievable.
- the spacer body can be configured to hold a fastener therein, yet not split or become damaged when the fastener is advanced through the spacer body.
- the fastener includes one or more fracturable joints between the spacer body and one or more of the resilient compression elements, those elements can be easily removed and discarded from the unit to fit a particular joist combination or confined space.
- the unit includes the resilient compression element, that element can secure and hold the fastener unit in place adjacent the groove, without the need for additional hands to hold the unit.
- the grip element is included having one or more downward protrusions or cleats, those elements can forcibly engage the groove to prevent the board from creeping or moving during expansion and contraction thereof during and under different temperatures.
- the spacer body is of diminished thickness, the entire fastener unit can be well concealed between adjacent boards, yet provide firm securement of those boards to underlying support structure, and provide a gap large enough to accommodate a fastener head passing between the boards.
- the fastener unit 10 can generally include a spacer body 20, a grip element 30 protruding forwardly and rearwardly from the spacer body, and one or more resilient compression elements, such as a first resilient compression element 41 and a second resilient compression element 42. These compression elements can be joined with the spacer body optionally via respective fracturable joints 48 and 49.
- a fastener 90 can be at least partially disposed through the spacer body 20 and/or the grip element 30 when the unit is in an uninstalled state as shown in Fig. 1 .
- the current embodiments of the fastener unit 10 are well suited for a variety of building and construction projects, such as commercial, residential and other construction projects.
- the fastener units can be modified for use in other applications, such as automotive, marine, industrial and/or consumer products.
- the fastener units can be used in the application of grooved boards or lap boards that are fastened to an underlying support structure.
- the boards can be constructed from wood, plastic, composites, metal, ceramic, tile, masonry or other materials depending on the application.
- the boards 101, 102 can include respective grooves 103 and 104.
- These grooves can include a groove depth GD of optionally 1/16 inch, further optionally 1/8 inch, even further optionally 1 ⁇ 4 inch, yet further optionally 1 ⁇ 2 inch or other depths depending on the particular application.
- the groove can be bounded by upper 105 and lower 107 lobes or projections that transition to the upper and lower surfaces of the board 101.
- each of the respective grooves 103 and 104 can be intermittent and/or discontinuous, depending on the particular application and board construction.
- Each groove 103 also can include a lower wall 109L, a rearward wall 109R and an upper wall 109U. These walls can be radiused and can transition smoothly or cleanly to one another as shown. Alternatively, they can be joined at right angles, depending on the application.
- the fastener unit 10 of the current embodiment will be described generally in connection with joining boards 101, 102 to an underlying joist 106, where the deck boards lay across an upper surface 106U of the joist.
- the joist 106 of course can be any support structure or element and can be constructed from any type of material, such as wood, plastic, composites, metal, ceramic, tile, masonry or other materials depending on the application. Further, it will be appreciated that the fastener unit can be used in conjunction with any type of decking, flooring, covering, roofing or other components.
- the spacer block 20 includes a front surface 21 and an opposing rear surface 22. These surfaces are on opposite sides of the vertical axis VA of the spacer body 20. This vertical axis VA can correspond to a longitudinal axis of the fastener 90. As described further below, a first fastener hole FF1 is aligned with this vertical axis VA.
- the spacer body 20 can include a first side surface 23 and an opposing second side surface 24.
- the spacer block can define a thickness T1 that extends between the front surface 21 and the second opposing rear surface 22. This thickness corresponds to a preselected gap G ( Fig. 7 ) that to be located between adjacently placed boards 101, 102.
- This gap and thickness can be optionally at least 0.180 inches, further optionally at least 0.200 inches, further optionally at least 0.250 inches, even further optionally at least 0.300 inches, yet further optionally at least 0.350 inches, further optionally at least 0.400 inches, yet further optionally at least 0.450 inches, even further optionally at least 0.500 inches, or wider or increments thereof, depending on the application and the desired spacing between adjacent deck boards.
- the gap and thickness can be optionally less than 0.180 inches, further optionally less than 0.200 inches, still further optionally less than 0.250 inches, even further optionally less than 0.300 inches, yet further optionally less than 0.350 inches, further optionally less than 0.400 inches, yet further optionally less than 0.450 inches, even further optionally less than 0.500 inches, or narrower or increments thereof, depending on the application and the desired spacing between adjacent deck boards.
- the thickness T1 and corresponding gap G set by the spacer body can be equal to and/or greater than the diameter DF of the fastener head 90H. In this manner, the fastener head can fit between and not excessively mar board surfaces that are placed adjacent the spacer body.
- the spacer body 20 can set this gap G by way of the front surface 21 engaging in adjacent board, for example, board 102 in Fig. 7 , and the rearward opposing face 22 engaging the board 101 as shown in Fig. 7 .
- this spacer body being disposed generally between the upper and lower lobes or projections 105, 107 that straddle the respective grooves 103 and 104, the spacer body effectively prevents those boards 101 and 102 from being placed any closer to one another than the gap G due to the thickness T1 of the spacer body 20 there between.
- the spacer body front surface 21 can engage the upper lobe 105 of a board above the groove 104.
- a lower portion of the spacer body 26 can engage the lower lobe 107 of the board, generally below the groove.
- the spacer body can engage portions of the side surface of the board in the regions of the lobes 105 and 107 above and below the groove 103.
- the spacer body upper portion 27 can include or define a recess 27R that extends from an upper most surface 27U, to a location adjacent the grip element 30.
- This recess 27R can be flanked by opposing ramped surfaces 27S. These ramped surfaces 27S can facilitate insertion of the fastener 90 into the first fastener hole FF1 as described further below.
- the lower portion 26 can include a lower surface 26L that can be generally flat.
- the distance D2 between the lowermost portion of the grip element 30 and the lower surface 26L of the lower portion 26 can be less than the distance D3 between the lower wall 109L of the groove 103 as shown in Fig. 5 .
- the spacer block 20 optionally will not interfere with the grip element 30 being brought into contact and engagement with the lower surface 109L of the groove.
- the distance D2 was optionally greater than D3, this might interfere with the engagement of the grip element 30 with the components of the groove 103.
- this alternative construction can be implemented for different applications where grip element engagement is irrelevant.
- the spacer body 20 also can define a grip element recess 28.
- This grip element recess can extend generally through the spacer body, from the forward surface 21 to the opposing rearward surface 22.
- This grip element recess can be of a corresponding shape relative to the shape of the grip element 30.
- the recess 28 can be in the form of an inverted U- or C-shaped channel that opens downward toward a joist 106.
- This recess 28 can be sized to enable the grip element 30 to be inserted through the spacer body and in some cases, friction fit and held in place relative to the spacer body. Of course, there can be some gaps between the sides of the recess and the grip element 30 so that the spacer body does not hold that grip element well.
- the fastener 90 extending through a grip element aperture, also called a second fastener hole SFH defined by the grip element 30 and into the first fastener hole FF1 of the spacer body 20. Due to the engagement of the threads 90T of the fastener with the first fastener hole FF1, the fastener can secure the grip element in place relative to the spacer body.
- the grip element 30 can be overmolded or 3-D printed over with material that forms the spacer body. In such a case, the grip element can be at least partially encapsulated by the spacer body and held in place accordingly.
- the first fastener hole FF1 can include an upper portion FF1U and a lower portion FF1L.
- the upper portion and lower portion can be of similar geometric shapes.
- the upper and lower portions can both be cylindrical. In some cases, however, one can be frustoconical and the other can be cylindrical.
- the shape can be rectangular, square, polygonal, ellipsoid, rounded or other geometric shapes.
- These respective portions can have different diameters or dimensions.
- the upper portion can include a diameter DU and the lower portion can include a diameter DL.
- the lower portion diameter DL can be less than the upper portion diameter DU.
- the grip element 30 can be in the form of a C-, V- or U-shaped channel.
- the grip element can be joined with the spacer body and optionally disposed within a spacer grip element recess or aperture 28.
- the grip element can include a base 33 and optional first 31 and second 32 downwardly extending protrusions, cleats or gussets. These cleats can optionally be integrally formed with the base 33.
- the cleats can be spaced a distance from one another and relative to the second fastener hole SFH, and thus the fastener 90 and the fastener head 90H.
- the cleats can be spaced so that when the head 90H is tightened and engages the grip element, first and second portions on opposite sides or ends of the head or its diameter respectively can exert forces downward directly over and on the first and second cleats 31, 32, without bending the grip element.
- the cleats can function as reinforcing members to the base in this manner, particularly when the fastener head 90H is pressing down on the base, to optionally prevent buckling of that base.
- the cleats 31, 32 can be spaced so their interior facing surfaces are a distance D8 of optionally less than 0.500 inches from one another, further optionally less than 0.250 inches from one another, even further optionally less than 0.200 inches from one another, yet further optionally less than 0.180 inches from one another, and still further optionally about 0.208 from one another.
- the diameter DF of the fastener can be equal to, less than or greater than this distance D8.
- the diameter DF can be equal to or slightly greater than the distance D8. In turn, this can maintain the cleats under or immediately adjacent the lower portions of the head 90F when those portions engage the grip element. Again, this can add rigidity and support closer to the fastener as it is tightened so the base and grip element in general do not deform, bend or buckle due to the downward force exerted by the fastener in the middle of the grip element.
- cleats can be configured to engage the grooves 103 and 104 of the respective boards with which the fastener unit 10 is used.
- the cleats can include flat lower edges, however these edges can be sharpened so that they are angled and come to points.
- the cleat lower edges can be serrated and/or include teeth to better bite into the groove of the board when the fastener unit is secured in place with the fastener 90.
- the grip element 30 includes a grip element aperture or second fastener hole SFH.
- This fastener hole can be aligned with the first fastener hole FF1 of the spacer body 20 so that the fastener can fit through both simultaneously.
- This second fastener hole SFH can be disposed in the center of the base 33, and optionally centered halfway between the forward edge 36 and rearward edge 37 of the grip element 30 as shown in Fig. 2 .
- the second fastener hole SFH can be a circular hole drilled through the base 33.
- the second fastener hole SFH can be a recess ground through the base and one or more of the cleats 31 or 32, but only from a single side. This can enable the grip element to retain enough material so that the head 90H of the fastener 90 will engage the grip element and pull it toward the underlying joist 106.
- the second fastener hole can be large enough to accept the threads of a fastener therethrough, but smaller than the diameter of the fastener head so that the head engages and pulls the grip element when tightened.
- the grip element can also include a forwardly extending portion 38 that extends forwardly of the forward surface 21 of the spacer body 20.
- the grip element can also include a rearward portion 37 that extends rearwardly of the rearward face 22 of the spacer body.
- the forward portion and rearward portions of the grip element can be of lengths L1 and L2, which can be equal extending from the respective forward and rearward faces of the spacer body. Of course, in some applications the distances and lengths can vary.
- the grip element 30 can be constructed from a variety of materials, such as metal, composites, polymers, ceramics, reinforced composites, polymers and the like.
- the grip element can be strong enough so that it does not buckle or collapse when the fastener head 90H engages it and pulls the grip element 30 into the lower surface 109L of the board groove 103. In this manner, the fastener 90 pulls the grip element 30 into tight engagement with that lower surface 109L or other components of the groove 103. This in turn, clamps the board 101 down to the underlying support structure 106. Due to this clamping, the board 101 effectively can be prevented from moving upon expansion and contraction of that board when subjected to different environmental conditions, such as heating and cooling. This can prevent the board from creeping in one direction or the other or generally becoming uneven.
- the grip element can be in the form of a small tube with corresponding teeth, a single flat piece of high-strength steel, optionally with serrations or knurling on its lower surface, or other forms, depending on the application and the materials from which the boards are constructed and/or as well as the desired holding strength.
- the fastener unit 10 can include first 41 and second 42 resilient compression elements. These resilient compression elements can be similar in structure and therefore only one will be described in detail here. It also will be appreciated that one of the resilient compression elements can be eliminated from the design in certain applications. In further applications, that area of the fastener unit can be occupied by a simple flange or leg that extends outwardly from the side surface of the spacer body 20, where that component is not compressible or movable from an open mode to a compressed mode as with a resilient compression element.
- the first resilient compression element 41 can extend outwardly from the first side surface 23 of the spacer body 20.
- the second resilient compression element 42 can extend outwardly from the second side surface 24 of the spacer body, which is opposite the side 23.
- the resilient compression elements optionally can be symmetric about the vertical axis VA as shown in Fig. 3 .
- the resilient compression elements 41 and 42 can be joined on opposite sides of the vertical axis VA. In this manner, they can engage the groove distal from one another to provide two or four points of engagement and contact between the fastener unit and the groove, not counting the engagement by the grip element 30.
- the first resilient compression element can include a vertically compressible upper wing 41UW and a vertically compressible lower wing 41LW. These wings can be joined at a junction 41J.
- the wings as illustrated are generally in the form of flat plates angled relative to another and joined at apex at the junction 41J. Of course, in other applications these wings can be curved, rounded, or of other shapes.
- These upper and lower wings can be designed to be vertically compressed in direction VC as shown in Figs. 3 and 5 .
- a wing or component or portion of the resilient compression element can be moved in direction of the arrows VC, generally toward a plane P1 that is orthogonal to or otherwise transverse to the vertical axis VA of the spacer body 20. Due to their resilient nature, however, these portions resiliently deform and are urged to expand and re-attain their previous configuration in an open mode of those elements as shown in Figs. 1 and 3 . After application of forces F to move the wings toward one another and/or generally toward the plane P1, due to the resilient nature of the wings, those wings are self-urged to open back up to the configuration shown in Figs. 1 and 3 .
- the resilient compression elements 41, 42 are operable in an open mode, as shown in Fig. 3 and a compressed mode as shown in Figs. 5-7 .
- the fastener unit 10 In the open mode, the fastener unit 10 is not yet installed relative to a groove of a board. In that configuration, the ends or outermost portions of the wings, farthest from the spacer body 20, are disposed a distance D5 from one another. This distance D5 in the open mode can be less than the height GH of the groove. Because of the vertically compressible nature of the resilient wings 42UW and 42LW of the resilient compression element 42, these wings can be moved toward one another or generally toward a spacer body horizontal reference plane, that is, the first plane P1.
- this plane P1 can pass through the grip element recess 28 and/or the portions of the grip element 30.
- the distance D6 between them decreases. This distance D6 can be less than the groove height GH.
- the compression elements upper and lower portions can be separated by a variable distance. This distance can be varied so that the resilient compression elements can fit within a particular groove of a board.
- the outer ends 41EE of the wings, and generally the resilient compression element 41 are free ends that extended the space. That is, they are not connected to one another.
- these elements and the ends can be connected to one another, provided that the connection allows vertical compression in direction VC.
- the upper and lower wings can be joined with corresponding wings, in the shape of "V", that extend outwardly from the ends 41EE. In turn, this allows these components to be compressed.
- the vertically compressible wings can be in the form of elongated elliptical or circular shapes that are structured to enable them to be compressed and reduce their overall vertical dimension, optionally to some dimension that is less than the groove height GH of the groove 103.
- a user can manually apply a force F to vertically compress the wings 41 and 42 in direction VC toward the plane P1 and/or generally toward one another.
- This converts the wings from the open mode shown in broken lines to a compressed mode as shown in solid lines.
- the resilient wings or portions of the compression elements bend, flex or otherwise move toward one another so that the distance between them is reduced from the distance D5 to the distance D6.
- This reduction in distance can be approximately 5%, 10%, 15%, 25%, 30%, 35%, 40%, 50% or more, depending on the application and amount of vertical compression.
- the first wing and second wing or other portions of the resilient compression element are resiliently moveable toward one another and/or the first plane P1 such that the vertical distance between the wings decreases upon the application of a compressive force by a user.
- These forces can optionally be at least 0.0001 pounds, further optionally at least 0.001 pounds, even further optionally at least 0.05 pounds, yet further optionally between 0.0001 pounds and 0.5 pounds.
- other forces can be exerted by the compression elements against the surfaces of the groove depending on the application and configuration of the resilient compression elements.
- the resilient compression elements secure the spacer block in a position adjacent the first groove. In this manner, the spacer block can be disposed in and effectively form the gap G between the side surfaces of the boards 101 and 102 when the second board is installed, as shown in Fig. 7 .
- the resilient compression elements 41, 42 can include respective front edges 41F, 42F and rear edges 41R, 42R.
- the rear edges 41 are configured to fit within the groove 103 of the board 101. In some cases, the rear edges can be disposed entirely within the groove and located adjacent the rear wall 109R.
- the front edges can extend outward from the groove, and beyond the site surface of the board, and in particular the lobes 105 and 107.
- the front edge and rear edge are separated by a compression element width CEW.
- This compression element width CEW can be greater than the thickness T1 of the spacer block 20.
- the thickness T1 of the spacer block 20 can be less than the compression element width CEW.
- the resilient compression elements can extend forward and/or rearward from the front and rear surfaces of the spacer block.
- the front edge 42F can lay within a common plane with the front surface 21 of the spacer block 20.
- the rearward edges 41R, 42R can extend beyond and outwardly from the spacer block rear surface 22 a distance D7 as shown in Fig. 1 .
- the grip element can have a grip element length L3 that extends from the front edge to the rear edge of the grip element 30.
- the spacer block 20 can include a spacer block thickness T1 and the resilient compression elements can each include compressible element widths CEW.
- the grip element length L3 can be greater than the compressible element width CEW.
- the resilient compression element width CEW can be greater than the spacer block thickness T1.
- both the grip element length L3 and the compression element width CEW can be greater than the thickness T1. This can enable the respective grip element and resilient compression elements to fit within the groove of one board yet not interfere with fitment of another board adjacent the first board.
- the compression element width CEW can be less than the sum of the groove depth GD plus the thickness T1 of the spacer block. This can enable the resilient compression elements to be disposed within the groove to hold the spacer block in place, yet not extend beyond the spacer block to interfere with the setting of a gap between adjacent boards. With this decreased width, the resilient compression elements also might not interfere with or engage another groove 104 of an adjacent board 102. Instead, only the grip element 30 optionally extends into and is engaged against that groove 104 to secure the boards to another.
- the resilient compression elements 41, 42 can be joined with the spacer body 21 at respective fracture of all joints 48 and 49. As shown in Figs. 3 and 5 , these fractional joints can be effective zones of weakness where the material joining the spacer body and the resilient compression elements is thinned so that those resilient compression elements can be bent in direction B and effectively break off at that joint. This is illustrated in Fig. 3 where the joint 49 has been fractured. In some cases, the fractional joint can be a portion of plastic that has perforations or holes extending therethrough. With this fracture of a joint, a user can selectively and manually remove one of the resilient compression elements 41, 42 to fit in a particular confined space or over a combination of abutting underlying support joists.
- the fastener unit can be provided including its spacer body 20, grip element 30, and resilient compression elements 41 and 42.
- the fastener 90 can be installed therein or can be installed by the user generally extending through the fastener holes as described above and engaging different portions of those holes as also described above.
- a user can apply a force F as shown in Fig. 3 to vertically compress in direction VC the wings of the resilient compression element toward one another and/or generally toward a plane P1. This in turn, changes the distance between the ends of the wings from a distance D5 to a lesser distance D6.
- the fastener unit When so compressed, the fastener unit transforms from an open mode, shown in broken lines, to a compressed mode, shown in solid lines, in Fig. 5 .
- the wings of the resilient compression elements as well as the rearward portion 37 of the grip element 30 can be inserted into the groove 103 as shown in Fig. 6 . These elements can be pushed in direction R as shown in Fig. 2 into the groove.
- the wings can be released to remove the manually applied compressive force F on the wings.
- the wings resiliently deform back toward their configuration in the open mode from the compressed mode. This in turn, exerts forces F1 and F2 by the resilient compression elements against the upper and lower surfaces of the groove. This fixes the fastener unit in place adjacent that groove.
- the spacer body 20 is thus held adjacent the first side surface 101S of the board 101 that is adjacent the groove 103.
- two joists may be immediately adjacent one another.
- one resilient compression element can be broken off each of the adjacent fastener units. This can be achieved by the user manually bending in direction B one of the resilient compression elements 41 to snap that component off from the spacer body as shown in Fig. 3 .
- a second board 102 With the fastener unit properly installed relative to the first board 101, a second board 102, as shown in Fig. 7 , can be placed immediately adjacent the first board 101, but separated by a gap G established by the thickness of the spacer body 20 of the fastener unit 10. Due to the grip element 30 extending outwardly from the forward face 21 of the spacer block, that grip element can be installed in the second groove 104 of the second board 102. With the boards so installed on the joist 106, the fastener 90 can be rotated in direction A. As a result, the fastener advances through the spacer body 20, the grip element 30 and into the underlying support or joist 106. As it does so, the head 90H eventually engages the grip element 30.
- the grip element downward toward the joist 106.
- the grip element and, for example, its cleats or protrusions bite into the lower surfaces of the respective grooves of the boards. This in turn provides enhanced holding force of the boards against the joist 106.
- the overall length of the unit from end to end is generally sufficient to cover all of the top of the joist 106 that may otherwise be exposed through the gap G established between the boards.
- FIG. 8-11 A first non-claimed alternative arrangement of a fastener unit is illustrated in Figs. 8-11 and generally designated 110.
- the fastener unit of this arrangement is similar in structure, function and operation to the arrangement described above with several exceptions.
- this unit 110 includes a fastener 190 similar to the fastener 90 above. It also includes a grip element 130 that is disposed in a recess 128 defined by a spacer body 120.
- the spacer body can have a spacer body width SW.
- the grip element can have a grip element width GW.
- the grip element width can be less than the spacer body width.
- the grip element width can be optionally less than 3 ⁇ 4 the spacer body width, further optionally less than 1 ⁇ 2 the spacer body width.
- the spacer body can be configured to establish a gap between adjacent boards, and sized with a thickness T2 similar to the thickness T1 described in the embodiment above.
- the grip element 130 can define a second fastener hole SFH' that is aligned with a first fastener hole FFH' of the spacer body 120 similar to that described above.
- the first fastener hole FFH' also can include upper and lower portions FF1U' and FF1L' that have different diameters, the lower one having a diameter less than the upper one's diameter.
- the grip element 130 optionally can extend from the forward 121 and rearward 122 surfaces of the spacer body 120 by equal distances D10 and D11. Of course, in some applications, these distances can vary.
- the unit 110 can include first and second compression elements which are in the form of first and second joist legs 141 and 142 that extend downward and outward from the spacer body 120. These first and second joist legs are configured to straddle and clampingly engage a joist.
- the joist legs are similar in construction, so only the first joist leg 141 will be described here.
- the joist leg 141 includes an outwardly extending portion 143 that extends outward from a side of the spacer body 120. That outwardly extending portion 143 transitions to a rounded or curved portion 145 that extends downwardly, away from a bottom 126L of the spacer body 120.
- the curved portion 145 is generally concave, opening toward the vertical axis VA.
- That curved portion 145 extends to a lower engagement portion 146.
- This lower engagement portion is generally convex relative to the vertical axis VA and opens away from that vertical axis VA.
- the engagement portion includes an inner engagement surface 146S which is configured to engage and slide over a portion of the outer walls 106W of the joist 106.
- This surface 146S again is generally curved and convex away from the vertical axis to facilitate sliding of this portion over the walls 106W.
- each of the joist legs 141 and 142 can be joined with the spacer body 120 at fracturable joints 148, 149 similar to those described above. In this manner, at least one of the first and second joint legs can be manually broken off from the spacer body to accommodate double joists or other confined spaces.
- the fastener unit 110 can be disposed adjacent a joist 106 and board 101 as illustrated in Fig. 10 .
- the joist legs 141 and 142 can be resiliently deformed outward by sliding the engagement surfaces 146S into engagement with the walls 106W of the joist 106. Due to the rounded nature, the joist legs can be resiliently flexed or moved outward and can slide over those walls.
- the grip element 130 can be inserted into the groove 103 and engage the groove lower surface 109L.
- the lower surface of the spacer body can be placed at a level lower than a lower surface of the first groove, for example, the lower surface 126L of the spacer body can be below the lower surface 109L of the groove.
- the joist legs can exert a compressive or clamping force F4 on the joist 106 to hold the grip element 130 at the elevation above the joist shown in Fig. 10 , generally protruding into the groove 103.
- a second board 102 can be moved in place adjacent the fastener unit 110. Due to the thickness T2 of the spacer body 120 separating the two boards, a gap G' can be established between those boards.
- the grip element 130 also extends into both of the respective gaps of the two boards. With the grip element so placed, and the gap G' established, a user can advance the fastener 90 into the underlying joist. In turn, this causes the grip element 130 and its corresponding cleats to bite into the respective grooves, thereby securing the board in a fixed location over the joist 106.
- one of the joist legs 141 can be bent in direction B to resiliently break off that leg at the fracturable joint 149.
- FIG. 12-13 A second non-claimed alternative arrangement of a fastener unit is illustrated in Figs. 12-13 and generally designated 210.
- the fastener unit of this arrangement is similar in structure, function and operation to the arrangements described above with several exceptions.
- this unit 210 can include a fastener 290 similar to the fasteners 90 and 190 above. It also can include a grip element 230 that is disposed in a recess 228 defined by a spacer body 220.
- the grip element 230 optionally can extend from and beyond the forward 221 and rearward 222 surfaces of the spacer body 220.
- the spacer body can be configured to establish a gap between adjacent boards, and sized with a thickness T3 similar to the thicknesses T1 and T2 described in the arrangements above.
- the unit 210 includes first and second joist legs 241 and 242, also referred to as resilient compression element in some cases, that extend downward and outward from the spacer body 220. These first and second joist legs are configured to straddle and clampingly engage a joist.
- the joist legs are similar in construction, so only the first joist leg 241 will be described here.
- the joist leg 241 includes an outwardly extending portion 243 that extends outward from a side of the spacer body 220. That outwardly extending portion 243 transitions to a rounded or curved portion 245 that extends downwardly, away from a bottom 226L of the spacer body 220.
- the curved portion 245 is generally concave, opening toward the vertical axis VA of the spacer body 220, which can be coincident and/or parallel to the longitudinal axis LA of the fastener 290. That curved portion 245 extends to a lower engagement portion 246.
- This lower engagement portion 246 can be convex relative to the vertical axis VA and can open away from that vertical axis VA.
- the engagement portion can include an inner engagement surface 246S configured to engage and slide over a portion of the outer walls 106W of the joist 106.
- This surface 246S can be curved and convex away from the vertical axis VA to facilitate sliding of this portion over the walls 106W.
- that surface 246S can be flat, planar, rough, ridged, triangular, or can have other geometric configurations depending on the configuration of the joist or the workpiece against which the leg is to be engaged.
- the first joist leg 241 can extend from a first lateral side L1 of the spacer block 220 on a first side of the vertical axis VA, and the second joist leg 242 can extend from a second lateral side L2 of the spacer block 220.
- the first and second joist legs can extend outwardly and downwardly from the spacer block.
- Each of the joist legs can include a forward surface and a rearward surface, and one or more of the joist legs can include a stabilizer bar extending from the joist leg a predetermined distance.
- the opposing stabilizer bars 251, 252 on the opposing joist legs 241 and 242 can be disposed at a common level L4 relative to one another and relative to another level L3 of the bottom or lower surface 230L of the grip element 230. Due to the similarities of the legs and the stabilizer bars in the arrangement illustrated, only the first joist leg 241 and its corresponding stabilizer bar 251 will be described here.
- the first joist leg 241 can include a front surface 241F and a rear surface 241R.
- the rear surface optionally can be planar and/or rounded.
- the rear surface can further include the stabilizer bar 251 projecting rearward from it in a direction opposite the front surface 241F of the joist leg 241.
- the stabilizer bar 251 can be integrally formed and joined with the leg at a transition location between the curved portion 245 and the lower engagement portion 246 of the joist leg.
- the stabilizer bar can project from the rear surface 241R a distance D13.
- This distance D13 can be equal to a distance D14 from which an end 230E of the grip element 230 extends away from the rearward surface 241R of the leg and/or of the rear surface 222 of the spacer body.
- the distance D13 optionally can be 1/32 inches, further optionally 1/8 inches, further optionally 1 ⁇ 4 inch, yet further optionally 1 ⁇ 2 inch, even further optionally 3 ⁇ 4 inches, or other distances depending on the application. In some cases, D13 can be greater than, less than or equal to D14.
- the distance D13 is greater than the distance D14 by at least 10% to 25%, such that the stabilizer bar 251 can adequately extend beyond a curved lower corner of the board and engage the under surface or bottom surface of the board as described below.
- the stabilizer bar 251 can include an upper surface 251U and a lower surface 251L.
- the upper surface 251U and lower surface 251L optionally can be part of a continuous cylindrical wall 254 where the stabilizer bar 251 is of a cylindrical shape.
- the stabilizer bar 251 is of another geometric shape, for example, a square shape, a polygonal shape an ellipsoid shape, or some other rounded or irregular shape
- the upper and lower surfaces can be formed by different portions of a wall or different walls altogether.
- the wall 254 can extend to the rear surface 241R of the leg 241.
- the stabilizer bar can alternatively extend also from the forward surface 241F of the joist leg. It may extend the distance D13, or some lesser or greater distance, depending on the application and the type of board utilized with the fastener unit.
- the stabilizer bar also can be configured such that the stabilizer bar 251 terminates at a free end 251E that projects out into space, in which case the stabilizer bar is cantilevered.
- This end 251E can include a ramped portion 255 and a flattened end portion 256.
- the ramped portion 255 can be a frustoconical shape or angled or rounded.
- the ramp 255 and end 256 can be merged into a hemispherical or otherwise rounded end.
- the end can be rounded or ramped as shown so that that end easily traverses past a corner or other side surface or bottom of a board when the fastener unit is installed.
- the ramp and/or rounded surface easily rides over the corner of the board and/or the bottom surface of the board for rapid installation.
- the stabilizer bar can be disposed a distance D12 below the lower surface 230L of the gripping element 230.
- the lower surface 230L can be disposed at a level L3, while the upper surface 251U of the stabilizer bar 251 can be disposed at a second level L4.
- the distance D12 between these different levels can be equal to a distance between a bottom of a groove, and a bottom surface of that same board. In this manner, the board can be pinched or clamped between the bottom surface 230L of the gripping element 230 and the upper surface 251U of the stabilizer bar.
- the portion of the board between the bottom of a groove of the board and the bottom surface of the board can be pinched or clamped between the gripping element 230 and the stabilizer bar 251 on the joist leg 241.
- the fastener unit 210 can be secured to and joined temporarily with the board optionally to maintain the fastener 290 longitudinal axis LA in a vertical, upright position before installation of the fastener 290 into an underlying joist.
- the stabilizer bar 251 also can have other shapes.
- the stabilizer bar 251 can be a portion of the joist leg 241 below the curved portion 245 at a distance D12, where that leg becomes a greater thickness (not shown) from its rear surface 241R to its front surface 241F.
- the thickness T4 of the joist leg 241 can be approximately 1 ⁇ 4 inch.
- the leg can be of a substantially greater thickness T5 such that the leg is 2, 3, 4, 5 or more times as thick as the thickness T4. This greater thickness T5 can extend all the way to the tip of the engagement portion 246.
- the stabilizer bar can extend in this manner to taper from the thickness T5 back toward the thickness T4 or some other thickness of the joist leg 241 toward the tip of the joist leg.
- the fastener unit 210 can be disposed adjacent a joist 106 and board 101 as illustrated in Fig. 13 .
- the joist legs 241 and 242 can be resiliently deformed outward by sliding the engagement portions 246, and their respective surfaces 246S into engagement within and along the opposing walls 106W of the joist 106. Due to the rounded nature, the joist legs can be resiliently flexed or moved outward and can slide over those walls.
- the grip element 230 Before the lower surface 226L of the spacer body engages the upper surface 106U of the joist 106, the grip element 230 can be inserted into the board groove 103 and engage the groove lower surface 109L.
- the joist legs 241, 242 can exert a compressive or clamping force F4 on the joist 106 to hold the grip element 230 at the elevation above the joist 106 shown in Fig. 13 , with the element protruding into the groove 103.
- the stabilizer bar 251 can be disposed below the bottom surface 101B of the board 101.
- the upper surface 251U of the stabilizer bar 251 can engage the bottom surface 101B adjacent the corner 101C of the board.
- the end 251E of the stabilizer bar optionally projects a distance that is greater than the depth GD of the groove 103 inward from the side surface 101S of the board 101. This distance can be the distance D13 shown in Fig. 12 .
- the distance D13 can be greater than groove depth GD, and optionally greater than the distance D14 by which the grip element 230 extends from the rear surface of the fastener unit.
- the lower surface 230L of the grip element as mentioned above can be a distance D12 from the upper surface 251U of the stabilizer bar 251. This distance can be less than the distance D15 below the groove lower surface 109L, between the groove lower surface 109 and the bottom surface 101B of the board. Accordingly, the grip element 230, in cooperation with the stabilizer bar 251, can exert a force F15 on the board with the grip element 230 exerting the force F15 on the lower surface 109L of the groove, and the upper surface of the stabilizer bar exerting the force F15 on the bottom surface 101B of the board 101. This in turn exerts a slight clamping or pinching force on the board within that region.
- the stabilizer bar can assist in further holding and maintaining the vertical axis VA of the fastener unit and the longitudinal axis LA of the fastener 290 in a generally vertical, upright orientation.
- This vertical, upright orientation can refer to an orientation that optionally is perpendicular to the plane P10 of the board 101, in particular, its upper surface 101U, which optionally can lay in a horizontal plane.
- the upright vertical orientation can be perfectly vertical, or can be slightly offset from vertical by up to 5° or up to 10°, depending on the application.
- the fastener unit exerts both a force on the board 101 and another force on the joist 106, the latter, by virtue of the forces exerted by the legs 241 and 242 against opposing sides of the joist.
- the joist legs exert clamping force F4 on the joist
- the stabilizer bars exert another force F15 on the board, between the groove and the bottom surface of the board.
- the force F15 is a vertical force
- the force F4 exerted by the joist legs is a substantially horizontal force.
- the directions of the forces can change relative to horizontal and vertical planes.
- the fastener unit 210 so installed can provide multiple points of contact between the fastener unit and the board, and thereby stabilize the fastener unit in a particular orientation, optionally holding the fastener associated with the unit in an upright, vertical orientation, ready for engagement by a tool.
- the fastener unit 210 can engage the board 101, and the joist 106 to prevent forward and aft tilting T7, generally in a direction toward or away from the side surface 101S of the board.
- the fastener unit also can prevent teetering in directions T8 which are generally into and out of the plane of Fig. 13 , such that the fastener and fastener unit do not slide along the side surface 101S of the board when in position.
- the fastener unit can provide multidirectional stability and support for the fastener 290, optionally holding it in an upright, vertical orientation as shown.
- a second board 102 can be moved in place adjacent the fastener unit 210. Due to the stabilization and forces exerted by the joist legs, the grip element and the stabilizer bars of the fastener unit 210, the fastener unit can remain in position, with the other end of the grip element 230 sliding into the groove 102G of board 102, and the fastener 290 staying in a generally upright and vertical orientation. With the grip element in position in the opposing gaps of the boards, and the appropriate gap set by the spacer body, the user can advance the fastener 290 into the underlying joist. In turn, this causes the grip element 230 and its corresponding cleats to bite into the respective grooves, thereby securing the board in a fixed location over the joist 106.
- FIG. 14-15 A third non-claimed alternative arrangement of a fastener unit is illustrated in Figs. 14-15 and generally designated 310.
- the fastener unit of this arrangement is similar in structure, function and operation to the arrangements described above with several exceptions.
- this unit 310 can include a fastener 390 similar to the fasteners 90, 190 and 290 above. It also can include a grip element 330 that is disposed in a recess 328 defined by a spacer body 320.
- the grip element 330 optionally can extend from and beyond the forward 321 and rearward 322 surfaces of the spacer body 320.
- the spacer body can be configured to establish a gap between adjacent boards, and sized with a thickness T4 similar to the thicknesses T1, T2 and T3 described in the embodiments above.
- the unit 310 includes first and second joist legs 341 and 342, also referred to as resilient compression element in some cases, that extend downward and outward from the spacer body 320. These first and second joist legs are configured to straddle and clampingly engage a joist.
- the joist legs are similar in construction, so only the first joist leg 341 will be described here.
- the joist leg 341 includes an outwardly extending portion 343 that extends outward from a side of the spacer body 320. That outwardly extending portion 343 transitions to a rounded or curved portion 345 that extends downwardly, away from a bottom 326L
- the curved portion 345 is generally concave, opening toward the vertical axis VA of the spacer body 320, which can be coincident and/or parallel to the longitudinal axis LA of the fastener 390. That curved portion 345 extends to a lower engagement portion 346.
- This lower engagement portion 346 can be convex relative to the vertical axis VA and can open away from that vertical axis VA.
- the engagement portion can include an inner engagement surface 346S configured to engage and slide over a portion of the outer walls 106W of the joist 106.
- This surface 346S can be curved and convex away from the vertical axis VA to facilitate sliding of this portion over the walls 106W.
- that surface 346S can be flat, planar, rough, ridged, triangular, or can have other geometric configurations depending on the configuration of the joist or the work piece against which the leg is to be engaged.
- the first joist leg 341 can extend from a first lateral side L1 of the spacer block 320 on a first side of the vertical axis VA, and the second joist leg 342 can extend from a second lateral side L2 of the spacer block 320.
- the spacer block 320 itself can be formed as a timing spacer block such that the lower surface 326L of the spacer block of this arrangement engages the upper surface 106U of the joist as the fastener 390 is tightened to install the fastener unit 310.
- This lower surface 326L can be disposed below the lower surface 330L of the grip element, optionally at least 1 ⁇ 4 inch below, further optionally at least 1 ⁇ 2 inch below that surface.
- the lower surface 326L can engage the upper surface 106U of the joist 106 when the grip element 330 engages the groove 103, for example the lower wall 109L of the groove 103 upon the application of a force F16 as described below.
- the timing spacer block 320 can be configured so that it has a relationship relative to a thickness T9 between the lower surface 109L of the groove and the bottom surface 101B of the board 101, or other boards, such as board 102 on the opposite side of the fastener unit 310.
- This thickness T9 can be optionally 1 ⁇ 4 inch, further optionally 1 ⁇ 2 inch, or other dimensions depending on the particular board.
- the fastener unit 310 can be configured so that the bottom 326L of the timing spacer body is spaced a distance D16 from the lowermost surface 330 L of the grip element 330, whether or not that grip element has one or more pressure feet 330P.
- This distance D16 can be equal to or less than the thickness T9 mentioned above.
- the distance D16 relative to the thickness T9 can be expressed in a ratio, for example optionally 1:1, further optionally 0.99:1, yet further optionally less than 1:1, even further optionally between 0.9:1 and 1:1, inclusive.
- the spacer block 320 (and in particular its lower surface 326L) is "timed” to engage the upper surface 106U of the joist 106 when the predetermined force F16 is applied by a pressure foot 330 against the board 101, and in general against the lower surface 109L of the groove 103.
- the lower surface 326L of the timing spacer block 320 can engage the upper surface 106U of the joist 106 after or at the same time as the pressure foot 330P engages the lower surface 106L of the groove. This can enable the fastener unit 310 to apply a predetermined force F16 through the pressure foot 330P and the grip element 330 in general.
- the timing spacer block 320 can be constructed to assist in limiting or otherwise controlling the predetermined force F16 that is applied to the boards 101 and 102 when and as the fastener unit 310 is secured in place.
- the portion of the board 101 between the lower surface 109L of the groove and the bottom 101B of the board can be pinched or clamped between the bottom surface 330L of the gripping element 330 and the upper surface 106U of the joist with the predetermined force F16 as the fastener unit 310 is tightened, that is when the fastener 390 is advanced into the joist 106 and the head 390H of the fastener 390 engages the gripping element 330 to pull the gripping element downward, upon the application of the predetermined force F16 through the gripping element 330.
- this predetermined force F16 can be limited by way of the lower surface 326L of the timing spacer block 320 engaging the upper surface 106U of the joist 106 to prevent and/or impair the fastener 390 from further advancing into the joist 106, which would thus pull the gripping element 330 farther toward the joist and produce more clamping force F16.
- the spacer block 320 when the timing spacer block 320 engages the upper surface 106U of the joist 106, and the fastener 390 is further advanced in direction FA toward and into the joist 106, the spacer block 320 itself is placed under a compressive force CF between the upper surface of the joist and the gripping element 330, when the gripping element is engaged by the head 390H of the fastener 390.
- This compressive force CF can be greater than, equal to or less than the force F16. In many cases, the compressive force can be greater than the force F16.
- the fastener unit 310 also can be outfitted with a gripping element 330 that is similar to the gripping elements 30, 130 and 230, with several exceptions.
- this gripping element 330 can be constructed for use with a particular type of board 101, 102.
- this board can be a TIMBERTECH or other composite deck board commercially available from AZEK Building Products of Skokie, Illinois.
- Such a board 101 can be constructed to include a groove 103 that is defined inward from side surface 101S. In such a board, this groove also can be duplicated and defined on both opposing sides of the same board 101 (although the second opposing groove is not shown).
- the groove 103 can transition inward from the side surface 101S.
- the groove can include an upper surface 109U that transitions to a rear wall 109R which further transitions to a lower wall 109L.
- the upper and lower walls of the groove are opposite one another and can be generally planar.
- the lower wall 109L can transition out to the side surface 101S.
- the side surface 101S can transition to a slanted wall 101A.
- This slanted wall 101A differs from the portion of the side surface 101S above the upper wall 109U of the groove 103, in that the slanted wall 101A angles back toward the plane P3 within which the rear wall 109R can at least partially lay.
- the slanted wall 101A can transition to the bottom surface 101B of the board 101 a preselected distance D17 from the plane P3.
- the slanted wall 101A can be disposed at an angle A1 relative to the bottom wall 101B. This angle A1 can be an obtuse angle, optionally greater than 90°.
- This slanted wall 101A can be rounded or slightly curvilinear, rather than linear as illustrated.
- the slanted wall 101A can transition to the bottom wall 101B at a transition region 101T, which can form part of the angle A1.
- This transition region 101T can be disposed the distance D17, closer to the side surface 101S than the rear wall 109R of the groove 103.
- the region 101P between the transition region 101T and the plane P3 within which the rear wall 109R of the groove lays can be configured to transfer the force F16 applied by the grip element 330 in particular the predetermined force F16 when this force is applied through the pressure foot 330P as described below.
- the slanted wall 101A can be disposed between the side surface 101S and the transition 101T.
- the slanted wall can extend a distance D19 from the side surface 101S horizontally away from that surface. This distance D19 can be less than the depth of the groove, that is the distance from the side surface 101S to the rear wall 109R of the groove
- the grip element 330 can be similar to the grip elements 30, 130 and 230 described above, with several exceptions.
- the grip element 330 optionally can be in the form of a C- or U-shaped channel, with the channel opening downward relative to the vertical axis VA or longitudinal axis LA.
- the grip element can be disposed in a recess defined by the spacer body 71 similar to force noted above.
- the grip element can be constructed to include downwardly extending cleats, which optionally can be portions of the channel or an elongated metal or composite bar.
- the grip element can include one or more feet or teeth, formed as part of the channel, the cleats or as additional protrusions extending from the grip element.
- the grip element 330 can include one or more pressure feet 330P. These pressure feet 330P can be disposed at the first 331 and second 332 ends of the grip element. These pressure feet can each form at least a portion of the lower surface 330L of the grip element 330.
- the pressure feet also can come in pairs, for example a pair of pressure feet 331P1 and 331P2 can be disposed at the first end 331.
- the second end 332 can include a similar pair of pressure feet.
- the pressure feet can include the lower surface 330L of the grip element, with each of the pair of the pressure feet forming a portion of that lower surface 330L.
- the pressure feet can extend all the way to the very end 331 of the grip element. Although shown as flat of the lower surface 326L, the feet can be pointed or rounded at that lower surface.
- the individual ones of the pairs of pressure feet also can form opposing sides of the U-channel that extend downward from the grip element. In this manner, each end can include two opposing pressure feet.
- the pairs can distribute the predetermined force F16 evenly and spread out between those two pressure feet.
- the grip element is not C or U-shaped, and is in the form of a bar (not shown)
- These pressure feet can also include larger lower surfaces of a particular geometric shape to provide more surface contact with the interior of the groove.
- the pressure feet of grip element can be spaced a particular distance from the respective front 321 and rear 322 surfaces of the fastener unit 310.
- the pressure feet 330P of one end 331 of the grip element 330 can be disposed a distance D18 from the front surface 321 of the spacer block 320.
- the pressure feet at the second opposing end 332 can be disposed a similar distance from the rear surface 322 of the spacer block.
- This distance D18 can be greater than the distance D19 mentioned above with regard to the slanted wall 101A.
- the grip element can be recessed upward from the lower surface 330L. For example, as shown in Figs.
- the pressure feet 330P can transition upward to a recessed surface 330R of the grip element.
- This recessed surface 330R can be disposed at a level above the lower surface 330L of the grip element 330 such that the recessed surface 330R generally does not substantially contact the lower surface 109L of the groove 103 when the fastener unit 310 is installed relative to the grooves and the boards. In this manner, substantially only the lower surface 330L of the grip element associated with the pressure feet 330P engage that lower surface 109L of the groove.
- the pressure feet 330P when spaced the distance D18 on the spacer block 320, can be configured to enable the predetermined force F16 to be distributed downward into the preselected pressure region 101P. Substantially all of the force F16 can be distributed to this region 101P. Optionally, little to no portion of the force F16 is distributed by the pressure feet 330P to the slanted wall 101A and/or the transition region 101T. Accordingly, with the force F16 distributed this far from the spacer block 320 and in general the side surface 101S, which can engage the spacer block directly, the force F16 is not distributed in a manner so as to urge the board 101 to rotate in direction N. Thus, the board 101 is prevented from tipping or angling when the fastener unit 310 is advanced to pull the board downward against the joist 106.
- the pressure feet 330P can be disposed the distance D18 from the spacer body 320 to ensure that the predetermined force F16 administered through the pressure feet 330P is not administered directly vertically over the slanted wall 101A, but rather in pressure region 101P that is farther away from the side surface 101S than the slanted wall 101A.
- the region 101P forms a portion of the bottom surface 101B of the board 101, the pressure feet and the grip element thus can exert the predetermined force F16 downward, directly to the bottom surface 101B which is in contact and generally parallel to the upper surface 106U of the joist 106.
- the flat generally planar bottom surface of the board 101B can engage the flat generally planar upper surface 106U of the joist and the two can be pressed together under the predetermined force F16. And as mentioned above, this predetermined force F16 can be limited by the spacer body 320 engaging the joist.
- the fastener unit 310 can be disposed adjacent a joist 106 as illustrated in Fig. 14 .
- the joist legs 341 and 342 can be resiliently deformed outward by sliding the engagement portions 346, and their respective surfaces 346S into engagement within the and along the opposing walls 106W of the joist 106. Due to the rounded nature, the joist legs can be resiliently flexed or moved outward and can slide over those walls.
- the lower surface 326L of the spacer body 320 can be move toward and optionally can engage the upper surface 106U of the joist 106.
- the joist legs 341, 342 can exert a compressive or clamping force on the joist 106 to hold the grip element 330 at the elevation above the joist 106 shown in Fig. 16 , with the element protruding into the groove 103.
- the grip element 330 can be inserted into the board groove 103, for example, into the respective grooves 103 of both of the opposing boards 101 and 102. These boards can be pushed toward one another so that the spacer body 320 and an upper portion 338, above the gripping element, can be contacted by and engaged by the respective side surfaces 101S, 102S of the opposing boards 101 and 102.
- the grip element can be positioned in the respective groups of the boards 101 and 102 such that the lower surface 330L of the respective pressure feet 330P engage the groove lower surface 109L. When the boards are pushed together, the pressure feet 330P are disposed at the distance D18 from the spacer body 320.
- the pressure feet are disposed over the pressure region 101P that corresponds to the bottom, generally planar surface 101B of the board.
- the pressure feet also can be positioned at a location within the distance D17 between the rear wall 109R and the transition 101T.
- the pressure feet are not disposed directly vertically above the slanted wall 101A.
- the pressure feet 330P can be disposed farther into the groove, closer to the rear wall 109R than to the side surface 101S of the board.
- the pressure feet can be disposed at or greater than the distance D19 away from the side surface of the board.
- the pressure feet that the opposing end 332 can be disposed in the groove 103' and oriented relative to its surfaces in a similar manner.
- the lower surface 330L of the grip element, and in particular the pressure feet, as mentioned above can be a distance D18 from the spacer body. This distance can place the pressure feet 330P directly over the pressure region 101P.
- the fastener 390 can be advanced in direction FA, through the spacer body and the grip element, advancing into the underlying joist 106. Upon this advancement, the head 390H of fastener 390 eventually engages the upper surface of the grip element 330. The fastener continues to be advanced into the joist 106.
- the lower surface 326L was not in direct engagement with the upper surface 106U of the joist 106, it can begin to be so engaged as the fastener is advanced.
- the head 390H pulls the grip element 330 downward. This engages the pressure feet 330P and the lower surface 330L of the grip element 330 against the lower surfaces 109L of the grooves 103. This exerts the force F16 directly downward onto to the pressure region 101P along the bottom surface 101B of the board. Due to the recessed surface 330R not engaging the remainder of that lower surface, closer to the side surface, the force F16 is not distributed toward or through the slanted wall 101A. Accordingly, the board 101 does not tip in direction N due to the force F16 creating a moment about the transition region 101T.
- timing spacer body 320 is placed under a compressive force CF between the head 390H of the fastener and the portion of the fastener pulling the head into the joist 106.
- the timing spacer body generally bottoms out the fastener and in general the fastener unit 310 so the fastener will not advance farther.
- timing spacer body limits the amount of additional force added to the predetermined force F16 to push the boards 101 and 102 into further contact with the joist 106. This in turn, can prevent the groove from being damaged or otherwise deforming the board 101 near the groove.
- the disclosed embodiments include a plurality of features that are described in concert and that might cooperatively provide a collection of benefits.
- the present invention is not limited to only those embodiments that include all of these features or that provide all of the stated benefits, except to the extent otherwise expressly set forth in the issued claims.
- Any reference to claim elements in the singular, for example, using the articles “a,” “an,” “the” or “said,” is not to be construed as limiting the element to the singular.
- Any reference to claim elements as "at least one of X, Y and Z” is meant to include any one of X, Y or Z individually, and any combination of X, Y and Z, for example, X, Y, Z; X, Y; X, Z ; and Y, Z.
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Description
- The present invention relates to a fastener unit configured to fasten workpieces, such as boards, to support structures, such as joists, and more particularly to a fastener unit that engages a groove in the side of a board to secure the board to a support structure.
- There are a variety of structures, such as decks, platforms and flooring, that include horizontal floors supported by an underlying support structure. The structures typically include boards that are placed side-by-side one another. The boards typically are arranged to extend cross support structures, such as joists, disposed under the boards at an angle, sometimes at a right angle. The boards usually are fastened to the joists using fasteners, such as nails or screws. The nails or screws can frequently become discolored over time, or can work themselves loose from the board and project upward from the board surface. Not only are these results aesthetically displeasing, they can present safety hazards.
- Some manufacturers have developed hidden fastener systems that fit loosely within grooves of adjacent boards. These hidden fasteners typically include a biscuit-shaped upper plate having two horizontal flanges that fit into the grooves defined by the sides of adjacent deck boards, a single center hole through which a fastener extends to secure to the underlying joist, and a base that extends downward from the upper plate to an underlying joist. While the horizontal flanges can engage the grooves, these elements typically do not engage those grooves forcibly enough to tack the boards to the underlying joist and prevent them from moving during expansion and contraction under changing temperatures. These systems typically also require a user to manually hold the plate in alignment with one or more grooves of the boards as the fastener is advanced, which can be cumbersome. Depending on the height of the base and the distance of the groove from the board lower surface, sometimes these items can be mismatched so that the flanges do not fit well in or align with the grooves. In addition, the flanges are of a fixed thickness so that if that thickness is mismatched relative to a groove, the plate cannot fit in the groove, let alone secure the board to the underlying joist. Further, where a support structure includes a double or triple joist, with two or more joists positioned immediately adjacent one another, the foregoing fastener systems might not be properly sized to conceal those joists or fit within the associated confined spaces. Reference may be made to
US 2005/0063771 A1 which relates to a fastener for securing deck boards to a support structure without the need for driving screws or nails through the deck boards. The fastener includes two horizontal flanges that fit into slots cut into the sides of adjacent deck boards, a center hole for securing the fastener to the support structure and deformable, resilient elements that bridge the gap between adjacent deck boards during fastening yet compress inward when the boards swell and expand. - Accordingly, there remains room for improvement in the field of fastener units that are configured to secure grooved boards to underlying support structures.
- The present invention is defined by the appended independent claims to which reference should now be made. Specific embodiments are defined by the dependent claims. By way of example, a fastener unit and related method to secure a board to a support are disclosed herein. The fastener unit includes a spacer block, a grip element extending from the spacer block and configured to fit in and engage a groove of the board, and at least one element extending from the spacer block, configured to secure the spacer block adjacent the groove to establish a gap between the board and another board.
- In one arrangement disclosed herein, the element can be a resilient compression element that is vertically compressible so that portions of it can be compressed from an open mode to a compressed mode. In the compressed mode, the resilient compression element is sized and dimensioned smaller than a width of the groove so that the element can fit within the groove. After placement in the groove, the portions can expand within the groove to forcibly engage the groove, thereby securing the resilient compression element and the joined spacer block adjacent the groove and a side surface of the board.
- In a further arrangement disclosed herein, the resilient compression element extends laterally from the spacer body, and in the same direction as a portion of the grip element. Optionally, the grip element and resilient compression element can extend rearwardly, from a rearward face of the spacer body, an equal amount or distance. Further optionally, the resilient compression element can include a front edge that does not extend forwardly, from a forward face of the spacer body, while the grip element can extend forwardly another distance from the forward face of the spacer body.
- In another arrangement disclosed herein, the spacer body is of a thickness extending from a forward face and a rearward face. The thickness can be optionally less than 0.200 inches, further optionally less than 0.250 inches, and even further optionally less than 0.500 inches to provide a corresponding gap between adjacent boards One inch is approximately equal to 25.4 mm.
- In still another arrangement disclosed herein, the resilient compression element includes first and second portions, optionally in the form of wings, plates, rounded sections, ellipsoids, polygonal elements, and the like, any of which can be referred to as wings herein, that function similar to resilient springs. These portions can be pinched toward one another, to convert the resilient compression element from an open mode to a compressed mode. In the compressed mode, the portions can be located in the groove of the board, which optionally can be 1/8 inch to 3/8 inch wide or other dimensions depending on the application. When the portions are released, they can forcibly engage the groove to hold the fastener unit centered in the groove.
- In even another arrangement disclosed herein, the resilient compression element can be joined with the spacer body at a fracturable joint. This fracturable joint can include a zone of weakness, such as a thinned region, a region with perforations or holes, an area with a brittle material, or some other weakening portion so that a user can manually break off the resilient compression element from the spacer body and fit the fastener unit in a particular location, for example, a confined space.
- In yet another arrangement disclosed herein, the grip element can be in the form of a channel. Optionally, the channel can be a c-channel that is turned upside down so that its opening faces downward. Associated protrusions of the channel can be configured to engage a lower interior surface of the board groove and effectively bite into that surface when the fastener is tightened down, to pull the grip element and its protrusions into that surface. In turn, this provides enhanced securement of the board to the underlying support structure, such as a joist.
- In a further arrangement disclosed herein, the fastener unit can be equipped with an additional resilient compression element, projecting from the spacer body on opposite lateral sides of the spacer body. The first and second resilient compression elements can cooperate to forcibly hold the spacer body and fastener unit in place adjacent the groove during installation of the fastener. In turn, because the unit is self-supported, a user can use both hands to manipulate a tool, such as a power drill, to install the fastener. Also, because the unit is self-supported, a user can place multiple fastener units, place an adjacent board, and later come back to fasten down one or more boards with the fastener units.
- In still a further arrangement disclosed herein, the spacer body defines a fastener hole that can include an upper portion and a lower portion. These upper and lower portions can have different diameters or dimensions to accommodate different screw types. In some cases the lower portion can include a diameter that is less than a diameter of the upper portion so that the tip of the screw can fit within the lower portion, while threads above that tip can fit within the upper portion. Optionally, the screw can be partially threaded into engagement with the spacer body, and in particular the interior surfaces of a first fastener hole defined by the spacer body.
- In still yet a further arrangement disclosed herein, the grip element can be constructed from a first material, such as a metal and/or composite, while the spacer body, resilient compression element and other features can be constructed from a polymeric material. The polymeric material can be overmolded to the grip element to secure the grip element thereto, with the grip element at least partially entrapped in the spacer body.
- In even a further arrangement disclosed herein, a fastener unit can include a spacer body defining a first fastener hole having first and second different internal dimensions, a threaded fastener supported by the spacer body within the first fastener hole, a grip element joined with the spacer body and configured to fit within and engage a groove of a board, and first and second joist legs extending downward from the spacer body and configured to straddle and clampingly engage sides of an underlying joist.
- In yet a further arrangement disclosed herein, the fastener unit can be constructed so that one or more joist legs are joined with the spacer body at a fracturable joint so that the leg can be selectively manually removed, depending on the placement of the fastener unit relative to one or more joists or within other confining spaces.
- In still yet a further arrangement disclosed herein, the fastener unit can include a spacer block and a grip element disposed transversely relative to the spacer block, extending from forward and rearward surfaces of the spacer block. A first joist leg can extend from a first lateral side of the spacer block and a second joist leg can extend from a second lateral side of the spacer block. The first and second joist legs extend outwardly and downwardly from the spacer block. One or both of the joist legs includes a stabilizer bar extending from the joist leg a predetermined distance. The stabilizer bar can be mounted below the spacer block and selectively positioned so that it can engage a bottom surface and/or side surface of a board, below a groove of the board, placed adjacent the fastener unit. In combination, the stabilizer bar, joist legs and/or the spacer body can engage one or more boards, adjacent which the spacer unit is placed, in multiple locations to thereby provide multiple points of contact with the spacer unit and those boards, and thereby stabilize the fastener unit in a particular orientation, optionally holding the fastener associated with the spacer unit in an upright, vertical orientation, ready for engagement by a tool.
- In even a further arrangement disclosed herein, the fastener unit can include a spacer block and a grip element disposed transversely relative to the spacer block, extending from forward and rearward surfaces of the spacer block. A first joist leg can extend from a first lateral side of the spacer block and a second joist leg can extend from a second lateral side of the spacer block. The first and second joist legs extend outwardly and downwardly from the spacer block. The grip element can include one or more pressure distribution feet at opposing ends of the grip element. When a fastener of the unit is tightened down, such a pressure distribution foot can ensure most of the force is distributed at one or more of the opposing ends of the grip element, rather than near the spacer body. With certain types of grooved boards having a chamfer under the groove along a board bottom surface, this force distribution, deep within the groove, can impair or prevent tipping of the board caused by the tightening down of the fastener unit.
- In yet another arrangement disclosed herein, the fastener unit can include a spacer block and a grip element disposed transversely relative to the spacer block, extending from forward and rearward surfaces of the spacer block. A first joist leg can extend from a first lateral side of the spacer block and a second joist leg can extend from a second lateral side of the spacer block. The first and second joist legs extend outwardly and downwardly from the spacer block. The spacer block can be a timing spacer block that is of a predetermined height set so that the spacer block engages an underlying joist or other support, optionally while a fastener of the unit is being tightened down to draw the fastener unit toward the joist or other support. With this timing spacer block, the fastener unit does not engage the grip element against the interior surfaces of the groove in such a way so as to pull the groove downward with too much force, which may cause tipping of the board in some circumstances.
- The fastener units and related methods of use disclosed herein provide benefits in hidden fasteners that previously have been unachievable. For example, where the fastener unit includes a multi-dimensioned fastener hole defined by the spacer body, the spacer body can be configured to hold a fastener therein, yet not split or become damaged when the fastener is advanced through the spacer body. Where the fastener includes one or more fracturable joints between the spacer body and one or more of the resilient compression elements, those elements can be easily removed and discarded from the unit to fit a particular joist combination or confined space. Where the unit includes the resilient compression element, that element can secure and hold the fastener unit in place adjacent the groove, without the need for additional hands to hold the unit. This can enable a user to place multiple fastener units along a board groove, install another board adjacent those units, and then come back and secure all the fastener units so that the boards are held in a fixed manner relative to the underlying support structure. Where the grip element is included having one or more downward protrusions or cleats, those elements can forcibly engage the groove to prevent the board from creeping or moving during expansion and contraction thereof during and under different temperatures. Where the spacer body is of diminished thickness, the entire fastener unit can be well concealed between adjacent boards, yet provide firm securement of those boards to underlying support structure, and provide a gap large enough to accommodate a fastener head passing between the boards.
- These and other objects, advantages, and features of the invention will be more fully understood and appreciated by reference to the description of the current embodiment and the drawings.
- Before the embodiments of the invention are explained in detail, it is to be understood that the invention is not limited to the details of operation or to the details of construction and the arrangement of the components set forth in the following description or illustrated in the drawings. The invention may be implemented in various other embodiments and of being practiced or being carried out in alternative ways not expressly disclosed herein without departing from the scope of the invention as defined in the appended claims.
- Also, it is to be understood that the phraseology and terminology used herein are for the purpose of description and should not be regarded as limiting. The use of "including" and "comprising" and variations thereof is meant to encompass the items listed thereafter and equivalents thereof as well as additional items and equivalents thereof.
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Fig. 1 is a perspective view of a current embodiment of the fastener unit with a fastener associated with the unit; -
Fig. 2 is another perspective view of the fastener unit about to be installed in a first groove of a first board; -
Fig. 3 is a front view of the fastener unit; -
Fig. 4 is a side view of the fastener unit; -
Fig. 5 is a front view of the fastener unit with the resilient compression elements being converted from an open mode to a compression mode; -
Fig. 6 is a perspective view of the resilient compression elements installed in a groove and holding the fastener unit adjacent the board; -
Fig. 7 is a side sectional view of the fastener unit installed within grooves of adjacent boards and establishing a gap with a spacer body between those adjacent boards; -
Fig. 8 is a perspective view of a first non-claimed alternative arrangement fastener unit; -
Fig. 9 is a front view of the first alternative arrangement of the fastener unit; -
Fig. 10 is a perspective view of the first alternative arrangement of the fastener unit being installed relative to a groove of a board and an underlying support; -
Fig. 11 is a side sectional view of the first alternative arrangement of the fastener unit installed within grooves of adjacent boards and establishing a gap with a spacer body between those adjacent boards; -
Fig. 12 is a perspective view of a second non-claimed alternative arrangement of a fastener unit including one or more stabilizer bars; -
Fig. 13 is a side sectional view of the second alternative arrangement of the fastener unit installed with a grip element in groups of adjacent boards, and with the one or more stabilizer bars engaging a lower surface of a board to provide further stabilization of the fastener unit; -
Fig. 14 is a perspective view of a third non-claimed alternative arrangement of a fastener unit including a grip element with one or more pressure feet and a timing spacer block; -
Fig. 15 is a perspective view of the third alternative arrangement of the fastener unit installed on an underlying joist and at least partially installed in a groove of a board; and -
Fig. 16 is a side sectional view of the third alternative embodiment of the fastener unit installed within grooves of a boards and the fastener installed to apply force well within the grooves via the one or more pressure feet, and the timing spacer block bottomed out against the underlying joist. - A current embodiment of the fastener unit is illustrated in
Figs. 1-7 , and generally designated 10. Thefastener unit 10 can generally include aspacer body 20, agrip element 30 protruding forwardly and rearwardly from the spacer body, and one or more resilient compression elements, such as a firstresilient compression element 41 and a secondresilient compression element 42. These compression elements can be joined with the spacer body optionally via respectivefracturable joints fastener 90 can be at least partially disposed through thespacer body 20 and/or thegrip element 30 when the unit is in an uninstalled state as shown inFig. 1 . - The current embodiments of the
fastener unit 10 are well suited for a variety of building and construction projects, such as commercial, residential and other construction projects. The fastener units, however, can be modified for use in other applications, such as automotive, marine, industrial and/or consumer products. As described herein, the fastener units can be used in the application of grooved boards or lap boards that are fastened to an underlying support structure. The boards can be constructed from wood, plastic, composites, metal, ceramic, tile, masonry or other materials depending on the application. - As shown in
Figs. 2 and6 , theboards respective grooves Fig. 2 , the groove can be bounded by upper 105 and lower 107 lobes or projections that transition to the upper and lower surfaces of theboard 101. Although shown as a continuous groove, each of therespective grooves groove 103 also can include alower wall 109L, arearward wall 109R and anupper wall 109U. These walls can be radiused and can transition smoothly or cleanly to one another as shown. Alternatively, they can be joined at right angles, depending on the application. - The
fastener unit 10 of the current embodiment will be described generally in connection with joiningboards underlying joist 106, where the deck boards lay across anupper surface 106U of the joist. Thejoist 106 of course can be any support structure or element and can be constructed from any type of material, such as wood, plastic, composites, metal, ceramic, tile, masonry or other materials depending on the application. Further, it will be appreciated that the fastener unit can be used in conjunction with any type of decking, flooring, covering, roofing or other components. - Turning now to the
fastener unit 10, each of the respective components, such as thespacer block 20,resilient compression elements grip element 30 andfastener 90 will now be described in more detail. Referring toFigs. 1-4 , thespacer block 20 includes afront surface 21 and an opposingrear surface 22. These surfaces are on opposite sides of the vertical axis VA of thespacer body 20. This vertical axis VA can correspond to a longitudinal axis of thefastener 90. As described further below, a first fastener hole FF1 is aligned with this vertical axis VA. Thespacer body 20 can include afirst side surface 23 and an opposingsecond side surface 24. - The spacer block can define a thickness T1 that extends between the
front surface 21 and the second opposingrear surface 22. This thickness corresponds to a preselected gap G (Fig. 7 ) that to be located between adjacently placedboards fastener head 90H. In this manner, the fastener head can fit between and not excessively mar board surfaces that are placed adjacent the spacer body. - The
spacer body 20 can set this gap G by way of thefront surface 21 engaging in adjacent board, for example,board 102 inFig. 7 , and the rearward opposingface 22 engaging theboard 101 as shown inFig. 7 . With this spacer body being disposed generally between the upper and lower lobes orprojections respective grooves boards spacer body 20 there between. As illustrated, the spacerbody front surface 21 can engage theupper lobe 105 of a board above thegroove 104. A lower portion of thespacer body 26 can engage thelower lobe 107 of the board, generally below the groove. Optionally, the spacer body can engage portions of the side surface of the board in the regions of thelobes groove 103. - As shown in
Figs. 1 and3 , the spacer bodyupper portion 27 can include or define arecess 27R that extends from an uppermost surface 27U, to a location adjacent thegrip element 30. Thisrecess 27R can be flanked by opposing rampedsurfaces 27S. These rampedsurfaces 27S can facilitate insertion of thefastener 90 into the first fastener hole FF1 as described further below. - As shown in
Figs. 1 and3 , thelower portion 26 can include alower surface 26L that can be generally flat. The distance D2 between the lowermost portion of thegrip element 30 and thelower surface 26L of thelower portion 26 can be less than the distance D3 between thelower wall 109L of thegroove 103 as shown inFig. 5 . With this distance D2 less than D3, thespacer block 20 optionally will not interfere with thegrip element 30 being brought into contact and engagement with thelower surface 109L of the groove. For example, if the distance D2 was optionally greater than D3, this might interfere with the engagement of thegrip element 30 with the components of thegroove 103. Of course, this alternative construction can be implemented for different applications where grip element engagement is irrelevant. - As shown in
Figs. 3 and5 , thespacer body 20 also can define agrip element recess 28. This grip element recess can extend generally through the spacer body, from theforward surface 21 to the opposingrearward surface 22. This grip element recess can be of a corresponding shape relative to the shape of thegrip element 30. Therecess 28 can be in the form of an inverted U- or C-shaped channel that opens downward toward ajoist 106. Thisrecess 28 can be sized to enable thegrip element 30 to be inserted through the spacer body and in some cases, friction fit and held in place relative to the spacer body. Of course, there can be some gaps between the sides of the recess and thegrip element 30 so that the spacer body does not hold that grip element well. In such constructions, thefastener 90, extending through a grip element aperture, also called a second fastener hole SFH defined by thegrip element 30 and into the first fastener hole FF1 of thespacer body 20. Due to the engagement of thethreads 90T of the fastener with the first fastener hole FF1, the fastener can secure the grip element in place relative to the spacer body. Optionally, thegrip element 30 can be overmolded or 3-D printed over with material that forms the spacer body. In such a case, the grip element can be at least partially encapsulated by the spacer body and held in place accordingly. - As shown in
Fig. 3 , the first fastener hole FF1 can include an upper portion FF1U and a lower portion FF1L. The upper portion and lower portion can be of similar geometric shapes. For example, the upper and lower portions can both be cylindrical. In some cases, however, one can be frustoconical and the other can be cylindrical. In yet other applications, the shape can be rectangular, square, polygonal, ellipsoid, rounded or other geometric shapes. These respective portions can have different diameters or dimensions. For example, the upper portion can include a diameter DU and the lower portion can include a diameter DL. The lower portion diameter DL can be less than the upper portion diameter DU. This can enable thetip 90T of thefastener 90, which can be pointed or frustoconical to be inserted into and have its threads partially bite into the lower portion FF1L. This in turn, can enable thefastener 90 to be slightly threaded into the spacer body so that it is secured thereto via those threads and the interaction of the threads with the first fastener hole FF1. It will be noted that although referred to herein as a diameter, that phrase encompasses any dimension of the first fastener hole, regardless of whether the respective portions of the hole are circular, elliptical, rounded or instead are polygonal. - Turning to
Figs. 1-5 , thegrip element 30 can be in the form of a C-, V- or U-shaped channel. The grip element can be joined with the spacer body and optionally disposed within a spacer grip element recess oraperture 28. The grip element can include abase 33 and optional first 31 and second 32 downwardly extending protrusions, cleats or gussets. These cleats can optionally be integrally formed with thebase 33. The cleats can be spaced a distance from one another and relative to the second fastener hole SFH, and thus thefastener 90 and thefastener head 90H. In particular, the cleats can be spaced so that when thehead 90H is tightened and engages the grip element, first and second portions on opposite sides or ends of the head or its diameter respectively can exert forces downward directly over and on the first andsecond cleats fastener head 90H is pressing down on the base, to optionally prevent buckling of that base. Optionally, as shown inFig. 2 , thecleats - These cleats can be configured to engage the
grooves fastener unit 10 is used. As shown, the cleats can include flat lower edges, however these edges can be sharpened so that they are angled and come to points. Although not shown, the cleat lower edges can be serrated and/or include teeth to better bite into the groove of the board when the fastener unit is secured in place with thefastener 90. - As mentioned above, the
grip element 30 includes a grip element aperture or second fastener hole SFH. This fastener hole can be aligned with the first fastener hole FF1 of thespacer body 20 so that the fastener can fit through both simultaneously. This second fastener hole SFH can be disposed in the center of thebase 33, and optionally centered halfway between theforward edge 36 andrearward edge 37 of thegrip element 30 as shown inFig. 2 . - Optionally, the second fastener hole SFH can be a circular hole drilled through the
base 33. In other cases, the second fastener hole SFH can be a recess ground through the base and one or more of thecleats head 90H of thefastener 90 will engage the grip element and pull it toward theunderlying joist 106. The second fastener hole can be large enough to accept the threads of a fastener therethrough, but smaller than the diameter of the fastener head so that the head engages and pulls the grip element when tightened. - The grip element can also include a forwardly extending
portion 38 that extends forwardly of theforward surface 21 of thespacer body 20. The grip element can also include arearward portion 37 that extends rearwardly of therearward face 22 of the spacer body. The forward portion and rearward portions of the grip element can be of lengths L1 and L2, which can be equal extending from the respective forward and rearward faces of the spacer body. Of course, in some applications the distances and lengths can vary. - The
grip element 30 can be constructed from a variety of materials, such as metal, composites, polymers, ceramics, reinforced composites, polymers and the like. The grip element can be strong enough so that it does not buckle or collapse when thefastener head 90H engages it and pulls thegrip element 30 into thelower surface 109L of theboard groove 103. In this manner, thefastener 90 pulls thegrip element 30 into tight engagement with thatlower surface 109L or other components of thegroove 103. This in turn, clamps theboard 101 down to theunderlying support structure 106. Due to this clamping, theboard 101 effectively can be prevented from moving upon expansion and contraction of that board when subjected to different environmental conditions, such as heating and cooling. This can prevent the board from creeping in one direction or the other or generally becoming uneven. - Optionally, although shown as an inverted channel, the grip element can be in the form of a small tube with corresponding teeth, a single flat piece of high-strength steel, optionally with serrations or knurling on its lower surface, or other forms, depending on the application and the materials from which the boards are constructed and/or as well as the desired holding strength.
- As mentioned above, the
fastener unit 10 can include first 41 and second 42 resilient compression elements. These resilient compression elements can be similar in structure and therefore only one will be described in detail here. It also will be appreciated that one of the resilient compression elements can be eliminated from the design in certain applications. In further applications, that area of the fastener unit can be occupied by a simple flange or leg that extends outwardly from the side surface of thespacer body 20, where that component is not compressible or movable from an open mode to a compressed mode as with a resilient compression element. - The first
resilient compression element 41 can extend outwardly from thefirst side surface 23 of thespacer body 20. The secondresilient compression element 42 can extend outwardly from thesecond side surface 24 of the spacer body, which is opposite theside 23. Thus, the resilient compression elements optionally can be symmetric about the vertical axis VA as shown inFig. 3 . Generally, theresilient compression elements grip element 30. - The first resilient compression element can include a vertically compressible upper wing 41UW and a vertically compressible lower wing 41LW. These wings can be joined at a
junction 41J. The wings as illustrated are generally in the form of flat plates angled relative to another and joined at apex at thejunction 41J. Of course, in other applications these wings can be curved, rounded, or of other shapes. These upper and lower wings can be designed to be vertically compressed in direction VC as shown inFigs. 3 and5 . By vertically compressible, it is meant that the a wing or component or portion of the resilient compression element can be moved in direction of the arrows VC, generally toward a plane P1 that is orthogonal to or otherwise transverse to the vertical axis VA of thespacer body 20. Due to their resilient nature, however, these portions resiliently deform and are urged to expand and re-attain their previous configuration in an open mode of those elements as shown inFigs. 1 and3 . After application of forces F to move the wings toward one another and/or generally toward the plane P1, due to the resilient nature of the wings, those wings are self-urged to open back up to the configuration shown inFigs. 1 and3 . - The
resilient compression elements Fig. 3 and a compressed mode as shown inFigs. 5-7 . In the open mode, thefastener unit 10 is not yet installed relative to a groove of a board. In that configuration, the ends or outermost portions of the wings, farthest from thespacer body 20, are disposed a distance D5 from one another. This distance D5 in the open mode can be less than the height GH of the groove. Because of the vertically compressible nature of the resilient wings 42UW and 42LW of theresilient compression element 42, these wings can be moved toward one another or generally toward a spacer body horizontal reference plane, that is, the first plane P1. Optionally, this plane P1 can pass through thegrip element recess 28 and/or the portions of thegrip element 30. When these wings are vertically compressed under a vertical compression force F, the distance D6 between them decreases. This distance D6 can be less than the groove height GH. Optionally, the compression elements upper and lower portions can be separated by a variable distance. This distance can be varied so that the resilient compression elements can fit within a particular groove of a board. - Referring to
Fig. 3 , the outer ends 41EE of the wings, and generally theresilient compression element 41, are free ends that extended the space. That is, they are not connected to one another. Optionally, in some applications, these elements and the ends can be connected to one another, provided that the connection allows vertical compression in direction VC. As an example, the upper and lower wings can be joined with corresponding wings, in the shape of "V", that extend outwardly from the ends 41EE. In turn, this allows these components to be compressed. In other constructions, the vertically compressible wings can be in the form of elongated elliptical or circular shapes that are structured to enable them to be compressed and reduce their overall vertical dimension, optionally to some dimension that is less than the groove height GH of thegroove 103. - With reference to
Fig. 5 , in operation, a user can manually apply a force F to vertically compress thewings - With the resilient compression elements in the compressed mode, a user can install those
elements groove 103. Because the distance D6 is less than the groove height GH, these elements will now fit within the groove. When the user releases or reduces the force F applied in the compressed mode to the respective portions of the resilient compression element, those wings want to go back to the configuration of the open mode. Due to the upper 109U and lower 109L surfaces of the groove, engagement if those wings with the resilient compression elements and the respective wings or other portions thereof, exert forces F1 and F2 on theboard 101 in the groove, and against the upper and lower surfaces of the groove. These forces can optionally be at least 0.0001 pounds, further optionally at least 0.001 pounds, even further optionally at least 0.05 pounds, yet further optionally between 0.0001 pounds and 0.5 pounds. Of course, other forces can be exerted by the compression elements against the surfaces of the groove depending on the application and configuration of the resilient compression elements. - Due to the forcible expansion of the resilient compression elements within the groove, the resilient compression elements secure the spacer block in a position adjacent the first groove. In this manner, the spacer block can be disposed in and effectively form the gap G between the side surfaces of the
boards Fig. 7 . - The
resilient compression elements front edges rear edges groove 103 of theboard 101. In some cases, the rear edges can be disposed entirely within the groove and located adjacent therear wall 109R. The front edges, however, can extend outward from the groove, and beyond the site surface of the board, and in particular thelobes - Optionally, the front edge and rear edge are separated by a compression element width CEW. This compression element width CEW can be greater than the thickness T1 of the
spacer block 20. Put another way, the thickness T1 of thespacer block 20 can be less than the compression element width CEW. Thus, the resilient compression elements can extend forward and/or rearward from the front and rear surfaces of the spacer block. As illustrated, thefront edge 42F can lay within a common plane with thefront surface 21 of thespacer block 20. The rearward edges 41R, 42R can extend beyond and outwardly from the spacer block rear surface 22 a distance D7 as shown inFig. 1 . - In some cases, there can be spatial relationships between the grip element, spacer block and resilient compression elements. For example, the grip element can have a grip element length L3 that extends from the front edge to the rear edge of the
grip element 30. As mentioned, above thespacer block 20 can include a spacer block thickness T1 and the resilient compression elements can each include compressible element widths CEW. As illustrated, the grip element length L3 can be greater than the compressible element width CEW. The resilient compression element width CEW can be greater than the spacer block thickness T1. In some cases, both the grip element length L3 and the compression element width CEW can be greater than the thickness T1. This can enable the respective grip element and resilient compression elements to fit within the groove of one board yet not interfere with fitment of another board adjacent the first board. Indeed, the compression element width CEW can be less than the sum of the groove depth GD plus the thickness T1 of the spacer block. This can enable the resilient compression elements to be disposed within the groove to hold the spacer block in place, yet not extend beyond the spacer block to interfere with the setting of a gap between adjacent boards. With this decreased width, the resilient compression elements also might not interfere with or engage anothergroove 104 of anadjacent board 102. Instead, only thegrip element 30 optionally extends into and is engaged against thatgroove 104 to secure the boards to another. - The
resilient compression elements spacer body 21 at respective fracture of alljoints Figs. 3 and5 , these fractional joints can be effective zones of weakness where the material joining the spacer body and the resilient compression elements is thinned so that those resilient compression elements can be bent in direction B and effectively break off at that joint. This is illustrated inFig. 3 where the joint 49 has been fractured. In some cases, the fractional joint can be a portion of plastic that has perforations or holes extending therethrough. With this fracture of a joint, a user can selectively and manually remove one of theresilient compression elements - A related method of using the
fastener unit 10 of the current embodiment will now be described. In general, the fastener unit can be provided including itsspacer body 20,grip element 30, andresilient compression elements fastener 90 can be installed therein or can be installed by the user generally extending through the fastener holes as described above and engaging different portions of those holes as also described above. A user can apply a force F as shown inFig. 3 to vertically compress in direction VC the wings of the resilient compression element toward one another and/or generally toward a plane P1. This in turn, changes the distance between the ends of the wings from a distance D5 to a lesser distance D6. When so compressed, the fastener unit transforms from an open mode, shown in broken lines, to a compressed mode, shown in solid lines, inFig. 5 . The wings of the resilient compression elements as well as therearward portion 37 of thegrip element 30 can be inserted into thegroove 103 as shown inFig. 6 . These elements can be pushed in direction R as shown inFig. 2 into the groove. The wings can be released to remove the manually applied compressive force F on the wings. In turn, the wings resiliently deform back toward their configuration in the open mode from the compressed mode. This in turn, exerts forces F1 and F2 by the resilient compression elements against the upper and lower surfaces of the groove. This fixes the fastener unit in place adjacent that groove. Thespacer body 20 is thus held adjacent the first side surface 101S of theboard 101 that is adjacent thegroove 103. - As mentioned above, in some cases, two joists may be immediately adjacent one another. To center the fasteners and associated grip elements over each of the joists, one resilient compression element can be broken off each of the adjacent fastener units. This can be achieved by the user manually bending in direction B one of the
resilient compression elements 41 to snap that component off from the spacer body as shown inFig. 3 . - With the fastener unit properly installed relative to the
first board 101, asecond board 102, as shown inFig. 7 , can be placed immediately adjacent thefirst board 101, but separated by a gap G established by the thickness of thespacer body 20 of thefastener unit 10. Due to thegrip element 30 extending outwardly from theforward face 21 of the spacer block, that grip element can be installed in thesecond groove 104 of thesecond board 102. With the boards so installed on thejoist 106, thefastener 90 can be rotated in direction A. As a result, the fastener advances through thespacer body 20, thegrip element 30 and into the underlying support orjoist 106. As it does so, thehead 90H eventually engages thegrip element 30. This in turn pulls the grip element downward toward thejoist 106. As a result, the grip element and, for example, its cleats or protrusions bite into the lower surfaces of the respective grooves of the boards. This in turn provides enhanced holding force of the boards against thejoist 106. With the fastener unit of the current embodiments, the overall length of the unit from end to end is generally sufficient to cover all of the top of thejoist 106 that may otherwise be exposed through the gap G established between the boards. - A first non-claimed alternative arrangement of a fastener unit is illustrated in
Figs. 8-11 and generally designated 110. The fastener unit of this arrangement is similar in structure, function and operation to the arrangement described above with several exceptions. For example, thisunit 110 includes afastener 190 similar to thefastener 90 above. It also includes agrip element 130 that is disposed in arecess 128 defined by aspacer body 120. The spacer body can have a spacer body width SW. The grip element can have a grip element width GW. The grip element width can be less than the spacer body width. For example the grip element width can be optionally less than ¾ the spacer body width, further optionally less than ½ the spacer body width. - The spacer body can be configured to establish a gap between adjacent boards, and sized with a thickness T2 similar to the thickness T1 described in the embodiment above. The
grip element 130 can define a second fastener hole SFH' that is aligned with a first fastener hole FFH' of thespacer body 120 similar to that described above. The first fastener hole FFH' also can include upper and lower portions FF1U' and FF1L' that have different diameters, the lower one having a diameter less than the upper one's diameter. Thegrip element 130 optionally can extend from the forward 121 and rearward 122 surfaces of thespacer body 120 by equal distances D10 and D11. Of course, in some applications, these distances can vary. - In this arrangement the
unit 110 can include first and second compression elements which are in the form of first andsecond joist legs spacer body 120. These first and second joist legs are configured to straddle and clampingly engage a joist. The joist legs are similar in construction, so only thefirst joist leg 141 will be described here. Thejoist leg 141 includes an outwardly extendingportion 143 that extends outward from a side of thespacer body 120. That outwardly extendingportion 143 transitions to a rounded orcurved portion 145 that extends downwardly, away from a bottom 126L of thespacer body 120. Thecurved portion 145 is generally concave, opening toward the vertical axis VA. Thatcurved portion 145 extends to alower engagement portion 146. This lower engagement portion is generally convex relative to the vertical axis VA and opens away from that vertical axis VA. The engagement portion includes an inner engagement surface 146S which is configured to engage and slide over a portion of theouter walls 106W of thejoist 106. This surface 146S again is generally curved and convex away from the vertical axis to facilitate sliding of this portion over thewalls 106W. - Optionally, each of the
joist legs spacer body 120 atfracturable joints - A method of installing the
fastener unit 110 will now be described in connection withFigs. 9-11 . Thefastener unit 110 can be disposed adjacent ajoist 106 andboard 101 as illustrated inFig. 10 . In particular, thejoist legs walls 106W of thejoist 106. Due to the rounded nature, the joist legs can be resiliently flexed or moved outward and can slide over those walls. Before thelower surface 126L of the spacer body engages theupper surface 106U of thejoist 106, thegrip element 130 can be inserted into thegroove 103 and engage the groovelower surface 109L. Due to the spatial relationship of the spacer body, itslower surface 126L and thelower surface 109L of the groove, the lower surface of the spacer body can be placed at a level lower than a lower surface of the first groove, for example, thelower surface 126L of the spacer body can be below thelower surface 109L of the groove. - As illustrated, the joist legs can exert a compressive or clamping force F4 on the
joist 106 to hold thegrip element 130 at the elevation above the joist shown inFig. 10 , generally protruding into thegroove 103. With the grip element in this location, as shown inFig. 11 , asecond board 102 can be moved in place adjacent thefastener unit 110. Due to the thickness T2 of thespacer body 120 separating the two boards, a gap G' can be established between those boards. Thegrip element 130 also extends into both of the respective gaps of the two boards. With the grip element so placed, and the gap G' established, a user can advance thefastener 90 into the underlying joist. In turn, this causes thegrip element 130 and its corresponding cleats to bite into the respective grooves, thereby securing the board in a fixed location over thejoist 106. - Optionally, in confined spaces, with reference to
Fig. 9 , one of thejoist legs 141 can be bent in direction B to resiliently break off that leg at the fracturable joint 149. - A second non-claimed alternative arrangement of a fastener unit is illustrated in
Figs. 12-13 and generally designated 210. The fastener unit of this arrangement is similar in structure, function and operation to the arrangements described above with several exceptions. For example, thisunit 210 can include afastener 290 similar to thefasteners grip element 230 that is disposed in arecess 228 defined by aspacer body 220. Thegrip element 230 optionally can extend from and beyond the forward 221 and rearward 222 surfaces of thespacer body 220. As above, the spacer body can be configured to establish a gap between adjacent boards, and sized with a thickness T3 similar to the thicknesses T1 and T2 described in the arrangements above. - In this arrangement, the
unit 210 includes first andsecond joist legs spacer body 220. These first and second joist legs are configured to straddle and clampingly engage a joist. The joist legs are similar in construction, so only thefirst joist leg 241 will be described here. Thejoist leg 241 includes an outwardly extending portion 243 that extends outward from a side of thespacer body 220. That outwardly extending portion 243 transitions to a rounded orcurved portion 245 that extends downwardly, away from a bottom 226L of thespacer body 220. Thecurved portion 245 is generally concave, opening toward the vertical axis VA of thespacer body 220, which can be coincident and/or parallel to the longitudinal axis LA of thefastener 290. Thatcurved portion 245 extends to alower engagement portion 246. Thislower engagement portion 246 can be convex relative to the vertical axis VA and can open away from that vertical axis VA. The engagement portion can include aninner engagement surface 246S configured to engage and slide over a portion of theouter walls 106W of thejoist 106. Thissurface 246S can be curved and convex away from the vertical axis VA to facilitate sliding of this portion over thewalls 106W. Of course, in other constructions, thatsurface 246S can be flat, planar, rough, ridged, triangular, or can have other geometric configurations depending on the configuration of the joist or the workpiece against which the leg is to be engaged. - As shown in
Fig. 12 , thefirst joist leg 241 can extend from a first lateral side L1 of thespacer block 220 on a first side of the vertical axis VA, and thesecond joist leg 242 can extend from a second lateral side L2 of thespacer block 220. The first and second joist legs can extend outwardly and downwardly from the spacer block. Each of the joist legs can include a forward surface and a rearward surface, and one or more of the joist legs can include a stabilizer bar extending from the joist leg a predetermined distance. In general, the opposing stabilizer bars 251, 252 on the opposingjoist legs lower surface 230L of thegrip element 230. Due to the similarities of the legs and the stabilizer bars in the arrangement illustrated, only thefirst joist leg 241 and itscorresponding stabilizer bar 251 will be described here. - The
first joist leg 241 can include a front surface 241F and arear surface 241R. The rear surface optionally can be planar and/or rounded. The rear surface can further include thestabilizer bar 251 projecting rearward from it in a direction opposite the front surface 241F of thejoist leg 241. As illustrated, thestabilizer bar 251 can be integrally formed and joined with the leg at a transition location between thecurved portion 245 and thelower engagement portion 246 of the joist leg. The stabilizer bar can project from therear surface 241R a distance D13. This distance D13 can be equal to a distance D14 from which anend 230E of thegrip element 230 extends away from therearward surface 241R of the leg and/or of therear surface 222 of the spacer body. The distance D13 optionally can be 1/32 inches, further optionally 1/8 inches, further optionally ¼ inch, yet further optionally ½ inch, even further optionally ¾ inches, or other distances depending on the application. In some cases, D13 can be greater than, less than or equal to D14. In cases where a bottom of the board with which thefastener unit 210 is utilized, the distance D13 is greater than the distance D14 by at least 10% to 25%, such that thestabilizer bar 251 can adequately extend beyond a curved lower corner of the board and engage the under surface or bottom surface of the board as described below. - Referring to
Fig. 12 , thestabilizer bar 251 can include anupper surface 251U and alower surface 251L. Theupper surface 251U andlower surface 251L optionally can be part of a continuouscylindrical wall 254 where thestabilizer bar 251 is of a cylindrical shape. Of course, where thestabilizer bar 251 is of another geometric shape, for example, a square shape, a polygonal shape an ellipsoid shape, or some other rounded or irregular shape, the upper and lower surfaces can be formed by different portions of a wall or different walls altogether. - The
wall 254 can extend to therear surface 241R of theleg 241. In some cases, the stabilizer bar can alternatively extend also from the forward surface 241F of the joist leg. It may extend the distance D13, or some lesser or greater distance, depending on the application and the type of board utilized with the fastener unit. The stabilizer bar also can be configured such that thestabilizer bar 251 terminates at afree end 251E that projects out into space, in which case the stabilizer bar is cantilevered. Thisend 251E can include a rampedportion 255 and a flattenedend portion 256. The rampedportion 255 can be a frustoconical shape or angled or rounded. In some cases, theramp 255 and end 256 can be merged into a hemispherical or otherwise rounded end. The end can be rounded or ramped as shown so that that end easily traverses past a corner or other side surface or bottom of a board when the fastener unit is installed. The ramp and/or rounded surface easily rides over the corner of the board and/or the bottom surface of the board for rapid installation. - As further shown in
Fig. 12 , the stabilizer bar can be disposed a distance D12 below thelower surface 230L of thegripping element 230. For example, thelower surface 230L can be disposed at a level L3, while theupper surface 251U of thestabilizer bar 251 can be disposed at a second level L4. The distance D12 between these different levels can be equal to a distance between a bottom of a groove, and a bottom surface of that same board. In this manner, the board can be pinched or clamped between thebottom surface 230L of thegripping element 230 and theupper surface 251U of the stabilizer bar. Optionally, the portion of the board between the bottom of a groove of the board and the bottom surface of the board can be pinched or clamped between thegripping element 230 and thestabilizer bar 251 on thejoist leg 241. Via this interaction with the board, as described further below, thefastener unit 210 can be secured to and joined temporarily with the board optionally to maintain thefastener 290 longitudinal axis LA in a vertical, upright position before installation of thefastener 290 into an underlying joist. - Although shown as a generally cylindrical bar, the
stabilizer bar 251 also can have other shapes. In some cases, thestabilizer bar 251 can be a portion of thejoist leg 241 below thecurved portion 245 at a distance D12, where that leg becomes a greater thickness (not shown) from itsrear surface 241R to its front surface 241F. For example, above the stabilizer bar, the thickness T4 of thejoist leg 241 can be approximately ¼ inch. Starting at theupper surface 251U of the stabilizer bar (although not shown) the leg can be of a substantially greater thickness T5 such that the leg is 2, 3, 4, 5 or more times as thick as the thickness T4. This greater thickness T5 can extend all the way to the tip of theengagement portion 246. In other cases (although not shown) the stabilizer bar can extend in this manner to taper from the thickness T5 back toward the thickness T4 or some other thickness of thejoist leg 241 toward the tip of the joist leg. - A method of installing the
fastener unit 210 will now be described in connection withFig. 13 . Thefastener unit 210 can be disposed adjacent ajoist 106 andboard 101 as illustrated inFig. 13 . In particular, thejoist legs engagement portions 246, and theirrespective surfaces 246S into engagement within and along the opposingwalls 106W of thejoist 106. Due to the rounded nature, the joist legs can be resiliently flexed or moved outward and can slide over those walls. Before thelower surface 226L of the spacer body engages theupper surface 106U of thejoist 106, thegrip element 230 can be inserted into theboard groove 103 and engage the groovelower surface 109L. Thejoist legs joist 106 to hold thegrip element 230 at the elevation above thejoist 106 shown inFig. 13 , with the element protruding into thegroove 103. - In addition, as shown in
FIG 13 , thestabilizer bar 251 can be disposed below thebottom surface 101B of theboard 101. In particular, theupper surface 251U of thestabilizer bar 251 can engage thebottom surface 101B adjacent thecorner 101C of the board. Theend 251E of the stabilizer bar optionally projects a distance that is greater than the depth GD of thegroove 103 inward from the side surface 101S of theboard 101. This distance can be the distance D13 shown inFig. 12 . Thus, the distance D13 can be greater than groove depth GD, and optionally greater than the distance D14 by which thegrip element 230 extends from the rear surface of the fastener unit. - The
lower surface 230L of the grip element as mentioned above can be a distance D12 from theupper surface 251U of thestabilizer bar 251. This distance can be less than the distance D15 below the groovelower surface 109L, between the groove lower surface 109 and thebottom surface 101B of the board. Accordingly, thegrip element 230, in cooperation with thestabilizer bar 251, can exert a force F15 on the board with thegrip element 230 exerting the force F15 on thelower surface 109L of the groove, and the upper surface of the stabilizer bar exerting the force F15 on thebottom surface 101B of theboard 101. This in turn exerts a slight clamping or pinching force on the board within that region. Accordingly, the stabilizer bar can assist in further holding and maintaining the vertical axis VA of the fastener unit and the longitudinal axis LA of thefastener 290 in a generally vertical, upright orientation. This vertical, upright orientation can refer to an orientation that optionally is perpendicular to the plane P10 of theboard 101, in particular, itsupper surface 101U, which optionally can lay in a horizontal plane. The upright vertical orientation can be perfectly vertical, or can be slightly offset from vertical by up to 5° or up to 10°, depending on the application. - With the stabilizer bar cooperating with the
grip element 230, the fastener unit exerts both a force on theboard 101 and another force on thejoist 106, the latter, by virtue of the forces exerted by thelegs - The
fastener unit 210 so installed can provide multiple points of contact between the fastener unit and the board, and thereby stabilize the fastener unit in a particular orientation, optionally holding the fastener associated with the unit in an upright, vertical orientation, ready for engagement by a tool. Optionally, thefastener unit 210 can engage theboard 101, and thejoist 106 to prevent forward and aft tilting T7, generally in a direction toward or away from the side surface 101S of the board. The fastener unit also can prevent teetering in directions T8 which are generally into and out of the plane ofFig. 13 , such that the fastener and fastener unit do not slide along the side surface 101S of the board when in position. Thus, the fastener unit can provide multidirectional stability and support for thefastener 290, optionally holding it in an upright, vertical orientation as shown. - With the fastener unit oriented as shown in
Fig. 13 , asecond board 102 can be moved in place adjacent thefastener unit 210. Due to the stabilization and forces exerted by the joist legs, the grip element and the stabilizer bars of thefastener unit 210, the fastener unit can remain in position, with the other end of thegrip element 230 sliding into thegroove 102G ofboard 102, and thefastener 290 staying in a generally upright and vertical orientation. With the grip element in position in the opposing gaps of the boards, and the appropriate gap set by the spacer body, the user can advance thefastener 290 into the underlying joist. In turn, this causes thegrip element 230 and its corresponding cleats to bite into the respective grooves, thereby securing the board in a fixed location over thejoist 106. - A third non-claimed alternative arrangement of a fastener unit is illustrated in
Figs. 14-15 and generally designated 310. The fastener unit of this arrangement is similar in structure, function and operation to the arrangements described above with several exceptions. For example, thisunit 310 can include afastener 390 similar to thefasteners grip element 330 that is disposed in arecess 328 defined by aspacer body 320. Thegrip element 330 optionally can extend from and beyond the forward 321 and rearward 322 surfaces of thespacer body 320. As above, the spacer body can be configured to establish a gap between adjacent boards, and sized with a thickness T4 similar to the thicknesses T1, T2 and T3 described in the embodiments above. - In this arrangement, the
unit 310 includes first andsecond joist legs spacer body 320. These first and second joist legs are configured to straddle and clampingly engage a joist. The joist legs are similar in construction, so only thefirst joist leg 341 will be described here. Thejoist leg 341 includes an outwardly extendingportion 343 that extends outward from a side of thespacer body 320. That outwardly extendingportion 343 transitions to a rounded orcurved portion 345 that extends downwardly, away from a bottom 326L - of the
spacer body 320. Thecurved portion 345 is generally concave, opening toward the vertical axis VA of thespacer body 320, which can be coincident and/or parallel to the longitudinal axis LA of thefastener 390. Thatcurved portion 345 extends to alower engagement portion 346. Thislower engagement portion 346 can be convex relative to the vertical axis VA and can open away from that vertical axis VA. The engagement portion can include aninner engagement surface 346S configured to engage and slide over a portion of theouter walls 106W of thejoist 106. Thissurface 346S can be curved and convex away from the vertical axis VA to facilitate sliding of this portion over thewalls 106W. Of course, in other constructions, thatsurface 346S can be flat, planar, rough, ridged, triangular, or can have other geometric configurations depending on the configuration of the joist or the work piece against which the leg is to be engaged. - As shown in
Fig. 14 , thefirst joist leg 341 can extend from a first lateral side L1 of thespacer block 320 on a first side of the vertical axis VA, and thesecond joist leg 342 can extend from a second lateral side L2 of thespacer block 320. Thespacer block 320 itself can be formed as a timing spacer block such that thelower surface 326L of the spacer block of this arrangement engages theupper surface 106U of the joist as thefastener 390 is tightened to install thefastener unit 310. Thislower surface 326L can be disposed below thelower surface 330L of the grip element, optionally at least ¼ inch below, further optionally at least ½ inch below that surface. Optionally, thelower surface 326L can engage theupper surface 106U of thejoist 106 when thegrip element 330 engages thegroove 103, for example thelower wall 109L of thegroove 103 upon the application of a force F16 as described below. - With reference to
Figs. 15-16 , thetiming spacer block 320 can be configured so that it has a relationship relative to a thickness T9 between thelower surface 109L of the groove and thebottom surface 101B of theboard 101, or other boards, such asboard 102 on the opposite side of thefastener unit 310. This thickness T9 can be optionally ¼ inch, further optionally ½ inch, or other dimensions depending on the particular board. Thefastener unit 310 can be configured so that the bottom 326L of the timing spacer body is spaced a distance D16 from thelowermost surface 330 L of thegrip element 330, whether or not that grip element has one ormore pressure feet 330P. This distance D16 can be equal to or less than the thickness T9 mentioned above. In some applications, the distance D16 relative to the thickness T9 can be expressed in a ratio, for example optionally 1:1, further optionally 0.99:1, yet further optionally less than 1:1, even further optionally between 0.9:1 and 1:1, inclusive. - These ratios and the general relationship between the thickness T9 and D16 can be established so that the spacer block 320 (and in particular its
lower surface 326L) is "timed" to engage theupper surface 106U of thejoist 106 when the predetermined force F16 is applied by apressure foot 330 against theboard 101, and in general against thelower surface 109L of thegroove 103. Optionally, thelower surface 326L of thetiming spacer block 320 can engage theupper surface 106U of thejoist 106 after or at the same time as thepressure foot 330P engages the lower surface 106L of the groove. This can enable thefastener unit 310 to apply a predetermined force F16 through thepressure foot 330P and thegrip element 330 in general. When the spacer body, however, bottoms out against the upper surface of the joist, the amount of additional force added to the predetermined force F16 can be limited and/or cut off completely because the spacer body prevents the fastener from being tightened further, and thus prevents the fastener from advancing farther, which otherwise would increase or otherwise add to the predetermined force F16 applied to the board via the feet in the groove. In this manner, thetiming spacer block 320 can be constructed to assist in limiting or otherwise controlling the predetermined force F16 that is applied to theboards fastener unit 310 is secured in place. Also, it will be appreciated that although only a force F16 is illustrated in thegroove 103 ofboard 101, another force, substantially equal to force F16 is being applied in the groove 103' of theother board 102 via the feet at theother end 332 of thegrip element 330. - Optionally, the portion of the
board 101 between thelower surface 109L of the groove and the bottom 101B of the board can be pinched or clamped between thebottom surface 330L of thegripping element 330 and theupper surface 106U of the joist with the predetermined force F16 as thefastener unit 310 is tightened, that is when thefastener 390 is advanced into thejoist 106 and thehead 390H of thefastener 390 engages thegripping element 330 to pull the gripping element downward, upon the application of the predetermined force F16 through thegripping element 330. Again, this predetermined force F16 can be limited by way of thelower surface 326L of thetiming spacer block 320 engaging theupper surface 106U of thejoist 106 to prevent and/or impair thefastener 390 from further advancing into thejoist 106, which would thus pull thegripping element 330 farther toward the joist and produce more clamping force F16. - Further optionally, it will be appreciated that when the
timing spacer block 320 engages theupper surface 106U of thejoist 106, and thefastener 390 is further advanced in direction FA toward and into thejoist 106, thespacer block 320 itself is placed under a compressive force CF between the upper surface of the joist and thegripping element 330, when the gripping element is engaged by thehead 390H of thefastener 390. This compressive force CF can be greater than, equal to or less than the force F16. In many cases, the compressive force can be greater than the force F16. - In the arrangement illustrated in
Figs. 14-16 , thefastener unit 310 also can be outfitted with agripping element 330 that is similar to thegripping elements gripping element 330 can be constructed for use with a particular type ofboard board 101 can be constructed to include agroove 103 that is defined inward from side surface 101S. In such a board, this groove also can be duplicated and defined on both opposing sides of the same board 101 (although the second opposing groove is not shown). Thegroove 103 can transition inward from the side surface 101S. The groove can include anupper surface 109U that transitions to arear wall 109R which further transitions to alower wall 109L. The upper and lower walls of the groove are opposite one another and can be generally planar. Thelower wall 109L can transition out to the side surface 101S. - In some constructions, below the
lower wall 109L, the side surface 101S can transition to aslanted wall 101A. Thisslanted wall 101A differs from the portion of the side surface 101S above theupper wall 109U of thegroove 103, in that theslanted wall 101A angles back toward the plane P3 within which therear wall 109R can at least partially lay. Theslanted wall 101A can transition to thebottom surface 101B of the board 101 a preselected distance D17 from the plane P3. Theslanted wall 101A can be disposed at an angle A1 relative to thebottom wall 101B. This angle A1 can be an obtuse angle, optionally greater than 90°. Thisslanted wall 101A can be rounded or slightly curvilinear, rather than linear as illustrated. Theslanted wall 101A can transition to thebottom wall 101B at atransition region 101T, which can form part of the angle A1. Thistransition region 101T can be disposed the distance D17, closer to the side surface 101S than therear wall 109R of thegroove 103. Theregion 101P between thetransition region 101T and the plane P3 within which therear wall 109R of the groove lays can be configured to transfer the force F16 applied by thegrip element 330 in particular the predetermined force F16 when this force is applied through thepressure foot 330P as described below. Optionally, theslanted wall 101A can be disposed between the side surface 101S and thetransition 101T. The slanted wall can extend a distance D19 from the side surface 101S horizontally away from that surface. This distance D19 can be less than the depth of the groove, that is the distance from the side surface 101S to therear wall 109R of thegroove 103. - The
grip element 330 can be similar to thegrip elements grip element 330 optionally can be in the form of a C- or U-shaped channel, with the channel opening downward relative to the vertical axis VA or longitudinal axis LA. The grip element can be disposed in a recess defined by the spacer body 71 similar to force noted above. The grip element can be constructed to include downwardly extending cleats, which optionally can be portions of the channel or an elongated metal or composite bar. The grip element can include one or more feet or teeth, formed as part of the channel, the cleats or as additional protrusions extending from the grip element. As an example, thegrip element 330 can include one ormore pressure feet 330P. Thesepressure feet 330P can be disposed at the first 331 and second 332 ends of the grip element. These pressure feet can each form at least a portion of thelower surface 330L of thegrip element 330. The pressure feet also can come in pairs, for example a pair of pressure feet 331P1 and 331P2 can be disposed at thefirst end 331. Thesecond end 332 can include a similar pair of pressure feet. - The pressure feet can include the
lower surface 330L of the grip element, with each of the pair of the pressure feet forming a portion of thatlower surface 330L. The pressure feet can extend all the way to thevery end 331 of the grip element. Although shown as flat of thelower surface 326L, the feet can be pointed or rounded at that lower surface. The individual ones of the pairs of pressure feet also can form opposing sides of the U-channel that extend downward from the grip element. In this manner, each end can include two opposing pressure feet. Optionally, the pairs can distribute the predetermined force F16 evenly and spread out between those two pressure feet. Optionally, where the grip element is not C or U-shaped, and is in the form of a bar (not shown), there can be single pressure feet located at the opposing ends. These pressure feet can also include larger lower surfaces of a particular geometric shape to provide more surface contact with the interior of the groove. - The pressure feet of grip element can be spaced a particular distance from the
respective front 321 and rear 322 surfaces of thefastener unit 310. For example, as shown inFig. 15 , thepressure feet 330P of oneend 331 of thegrip element 330 can be disposed a distance D18 from thefront surface 321 of thespacer block 320. Of course, the pressure feet at the secondopposing end 332 can be disposed a similar distance from therear surface 322 of the spacer block. This distance D18 can be greater than the distance D19 mentioned above with regard to theslanted wall 101A. Within this distance D18 away from thespacer block 20, the grip element can be recessed upward from thelower surface 330L. For example, as shown inFigs. 15 and16 , thepressure feet 330P can transition upward to a recessedsurface 330R of the grip element. This recessedsurface 330R can be disposed at a level above thelower surface 330L of thegrip element 330 such that the recessedsurface 330R generally does not substantially contact thelower surface 109L of thegroove 103 when thefastener unit 310 is installed relative to the grooves and the boards. In this manner, substantially only thelower surface 330L of the grip element associated with thepressure feet 330P engage thatlower surface 109L of the groove. - The
pressure feet 330P, when spaced the distance D18 on thespacer block 320, can be configured to enable the predetermined force F16 to be distributed downward into thepreselected pressure region 101P. Substantially all of the force F16 can be distributed to thisregion 101P. Optionally, little to no portion of the force F16 is distributed by thepressure feet 330P to theslanted wall 101A and/or thetransition region 101T. Accordingly, with the force F16 distributed this far from thespacer block 320 and in general the side surface 101S, which can engage the spacer block directly, the force F16 is not distributed in a manner so as to urge theboard 101 to rotate in direction N. Thus, theboard 101 is prevented from tipping or angling when thefastener unit 310 is advanced to pull the board downward against thejoist 106. - Optionally, the
pressure feet 330P can be disposed the distance D18 from thespacer body 320 to ensure that the predetermined force F16 administered through thepressure feet 330P is not administered directly vertically over theslanted wall 101A, but rather inpressure region 101P that is farther away from the side surface 101S than the slantedwall 101A. Where theregion 101P forms a portion of thebottom surface 101B of theboard 101, the pressure feet and the grip element thus can exert the predetermined force F16 downward, directly to thebottom surface 101B which is in contact and generally parallel to theupper surface 106U of thejoist 106. The flat generally planar bottom surface of theboard 101B can engage the flat generally planarupper surface 106U of the joist and the two can be pressed together under the predetermined force F16. And as mentioned above, this predetermined force F16 can be limited by thespacer body 320 engaging the joist. - A method of installing the
fastener unit 310 will now be described in connection withFigs. 14 and16 . Thefastener unit 310 can be disposed adjacent ajoist 106 as illustrated inFig. 14 . In particular, thejoist legs engagement portions 346, and theirrespective surfaces 346S into engagement within the and along the opposingwalls 106W of thejoist 106. Due to the rounded nature, the joist legs can be resiliently flexed or moved outward and can slide over those walls. Thelower surface 326L of thespacer body 320 can be move toward and optionally can engage theupper surface 106U of thejoist 106. Thejoist legs joist 106 to hold thegrip element 330 at the elevation above thejoist 106 shown inFig. 16 , with the element protruding into thegroove 103. - The
grip element 330 can be inserted into theboard groove 103, for example, into therespective grooves 103 of both of the opposingboards spacer body 320 and anupper portion 338, above the gripping element, can be contacted by and engaged by the respective side surfaces 101S, 102S of the opposingboards boards lower surface 330L of therespective pressure feet 330P engage the groovelower surface 109L. When the boards are pushed together, thepressure feet 330P are disposed at the distance D18 from thespacer body 320. Accordingly, the pressure feet are disposed over thepressure region 101P that corresponds to the bottom, generallyplanar surface 101B of the board. The pressure feet also can be positioned at a location within the distance D17 between therear wall 109R and thetransition 101T. Optionally, the pressure feet are not disposed directly vertically above theslanted wall 101A. Further optionally, thepressure feet 330P can be disposed farther into the groove, closer to therear wall 109R than to the side surface 101S of the board. As a further example, the pressure feet can be disposed at or greater than the distance D19 away from the side surface of the board. The pressure feet that theopposing end 332 can be disposed in the groove 103' and oriented relative to its surfaces in a similar manner. - The
lower surface 330L of the grip element, and in particular the pressure feet, as mentioned above can be a distance D18 from the spacer body. This distance can place thepressure feet 330P directly over thepressure region 101P. When the fastener unit is installed relative to theboards Fig. 16 , thefastener 390 can be advanced in direction FA, through the spacer body and the grip element, advancing into theunderlying joist 106. Upon this advancement, thehead 390H offastener 390 eventually engages the upper surface of thegrip element 330. The fastener continues to be advanced into thejoist 106. If thelower surface 326L was not in direct engagement with theupper surface 106U of thejoist 106, it can begin to be so engaged as the fastener is advanced. As the advancement of thefastener 390 continues, thehead 390H pulls thegrip element 330 downward. This engages thepressure feet 330P and thelower surface 330L of thegrip element 330 against thelower surfaces 109L of thegrooves 103. This exerts the force F16 directly downward onto to thepressure region 101P along thebottom surface 101B of the board. Due to the recessedsurface 330R not engaging the remainder of that lower surface, closer to the side surface, the force F16 is not distributed toward or through theslanted wall 101A. Accordingly, theboard 101 does not tip in direction N due to the force F16 creating a moment about thetransition region 101T. - As the fastener continues to advance, the
timing spacer body 320 is placed under a compressive force CF between thehead 390H of the fastener and the portion of the fastener pulling the head into thejoist 106. When this occurs, the timing spacer body generally bottoms out the fastener and in general thefastener unit 310 so the fastener will not advance farther. As a result, timing spacer body limits the amount of additional force added to the predetermined force F16 to push theboards joist 106. This in turn, can prevent the groove from being damaged or otherwise deforming theboard 101 near the groove. - Directional terms, such as "vertical," "horizontal," "top," "bottom," "upper," "lower," "inner," "inwardly," "outer" and "outwardly," are used to assist in describing the invention based on the orientation of the arrangements shown in the illustrations. The use of directional terms should not be interpreted to limit the invention to any specific orientations.
- The above description is that of current embodiments of the invention. However, the present invention is defined by the appended claims. This disclosure is presented for illustrative purposes and should not be interpreted as an exhaustive description of all embodiments of the invention or to limit the scope of the claims to the specific elements illustrated or described in connection with these embodiments. For example, and without departing from the scope of the invention as defined by the appended claims, any individual element(s) of the described invention may be replaced by alternative elements that provide substantially similar functionality or otherwise provide adequate operation. This includes, for example, presently known alternative elements, such as those that might be currently known to one skilled in the art, and alternative elements that may be developed in the future, such as those that one skilled in the art might, upon development, recognize as an alternative. Further, the disclosed embodiments include a plurality of features that are described in concert and that might cooperatively provide a collection of benefits. The present invention is not limited to only those embodiments that include all of these features or that provide all of the stated benefits, except to the extent otherwise expressly set forth in the issued claims. Any reference to claim elements in the singular, for example, using the articles "a," "an," "the" or "said," is not to be construed as limiting the element to the singular. Any reference to claim elements as "at least one of X, Y and Z" is meant to include any one of X, Y or Z individually, and any combination of X, Y and Z, for example, X, Y, Z; X, Y; X, Z ; and Y, Z.
Claims (14)
- A fastener unit (10) adapted to secure at least one board to a support, the fastener unit comprising:a spacer block (20) defining a first fastener hole (FF1) configured to receive a fastener (90) having a longitudinal axis (LA) therein, the spacer block including a front surface (21), an opposing rear surface (22), a first side surface (23) and a second side surface (24) opposite the first side surface, the spacer block (20) having a thickness (T1) extending from the front surface to the rear surface, the thickness corresponding to a preselected gap (G) between a first board (101) and a second adjacent board (102), the first fastener hole (FF1) including an upper portion (FF1U) having an upper portion diameter (DU) and a lower portion (FF1L) having a lower portion diameter (DL), the lower portion diameter (DL) being less than the upper portion diameter (DU);a grip element (30) extending from the spacer block (20), the grip element configured to fit in a first groove (103) defined by the first board (101); anda first resilient compression element (41) and a second resilient compression element (42) extending away from the spacer block (20), and adapted to fit within the first groove (103) and to thereby secure the spacer block adjacent the first groove (103) and establish a gap (G) between the first board (101) and the second adjacent board (102),wherein at least one of the first resilient compression element (41) and the second resilient compression element (42) includes a wing (41UW, 41LW, 42UW, 42LW) that in use is adapted to forcibly engage the first groove (103),wherein the wing (41UW, 41LW, 42UW, 42LW) in use is adapted to move toward a reference plane (P1) orthogonal to the longitudinal axis (LA) when forcibly engaging the first groove (103).
- The fastener unit (10) of claim 1 comprising:
a fastener (90) including a tip (90T) with threads extending above the tip, the tip disposed within the lower portion (FF1L) and the threads disposed within the upper portion (FF1U). - The fastener unit (10) of claim 1 comprising:a fastener (90) including a tip (90T) with threads extending above the tip, which is pointed,wherein the tip (90T) bites into the lower portion (FF1L) so that the fastener (90) is threaded into the spacer block (20) so that it is secured thereto via the interaction with the first fastener hole (FF1).
- The fastener unit (10) of claim 3,
wherein at least one of the upper portion (FF1U) and the lower portion (FF1L) is frustoconical. - The fastener unit (10) of claim 1,wherein the wing is a first wing,wherein the at least one of the first resilient compression element (41) and the second resilient compression element (42) includes the first wing and a second wing joined at a junction,wherein the first wing and second wing are compressible toward the reference plane (P1) so that a vertical distance (D5) between the first wing and the second wing decreases upon such compression.
- The fastener unit (10) of claim 1,
wherein the wing (41UW, 41LW, 42UW, 42LW) is resilient and shaped to enable the wing to be compressed and reduce an overall vertical dimension of the wing to a dimension (D6) that is less than a groove height (GH) of the first groove (103). - The fastener unit (10) of claim 6,
wherein the wing (41UW, 41LW, 42UW, 42LW) is curved. - The fastener unit (10) of claim 1,wherein the upper portion (FF1U) is cylindrical in shape,wherein the lower portion (FF1L) is cylindrical in shape.
- The fastener unit (10) of claim 1,wherein the upper portion (FF1U) is cylindrical in shape,wherein the lower portion (FF1L) is frustoconical in shape.
- The fastener unit (10) of claim 1 comprising:
a threaded fastener (90) supported by the spacer block (20) within the first fastener hole (FF1) and threaded into at least one of the upper portion (FF1U) and the lower portion (FF1L). - A method of using a fastener unit (10) to secure at least one board to a support comprising:providing a fastener unit (10) including a fastener (90) having a longitudinal axis (LA), a spacer block (20) defining a first fastener hole (FF1) including an upper portion (FF1U) having an upper portion diameter (DU) and a lower portion (FF1L) having a lower portion diameter (DL), the lower portion diameter (DL) being less than the upper portion diameter (DU), a grip element (30) projecting outward from the spacer block (20), with the fastener (90) projecting through the upper portion and the lower portion of the first fastener hole (FF1), the fastener (90) supported within the first fastener hole (FF1), a first resilient compression element (41) extending away from the spacer block (20), and a second resilient compression element (42) extending away from the spacer block (20);placing the fastener unit (10) over a joist (106);positioning the grip element (30) so the grip element extends into a first groove (103) in the side of a first board (101); andadvancing the fastener (90) through the first fastener hole (FF1) of the spacer block,wherein a head (90H) of the fastener forces the grip element (30) into engagement with the first groove (103), thereby urging the first board (101) toward the joist (106),wherein at least one of the first resilient compression element (41) and the second resilient compression element (42) includes a wing (41UW, 41LW, 42UW, 42LW) that forcibly engages the first groove (103) during the positioning,wherein the wing (41UW, 41LW, 42UW, 42LW) moves toward a reference plane (P1) orthogonal to the longitudinal axis (LA) when forcibly engaging the first groove (103).
- The method of claim 11,wherein the fastener (90) is pointed,wherein threads of the fastener (90) are threaded into the spacer block (20) so that the fastener is secured to the spacer block via the interaction of the threads with the first fastener hole (FF1).
- The method of claim 11,
wherein the wing (41UW, 41LW, 42UW, 42LW) is resilient and shaped to enable the wing (41UW, 41LW, 42UW, 42LW) to be compressed and reduce an overall vertical dimension of the wing to a dimension (D6) that is less than a groove height (GH) of the first groove (103) when the wing (41UW, 41LW, 42UW, 42LW) is inserted in the first groove (103). - The method of claim 11,wherein the upper portion (FF1U) is cylindrical in shape,wherein the lower portion (FF1L) is frustoconical in shape.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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EP23177831.7A EP4242397B1 (en) | 2017-08-15 | 2018-07-19 | Hidden fastener unit and related method of use |
Applications Claiming Priority (7)
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US201762545709P | 2017-08-15 | 2017-08-15 | |
US201862635745P | 2018-02-27 | 2018-02-27 | |
US201862674247P | 2018-05-21 | 2018-05-21 | |
US16/011,179 US11261893B2 (en) | 2017-08-15 | 2018-06-18 | Hidden fastener unit and related method of use |
US16/011,213 US10378218B2 (en) | 2017-08-15 | 2018-06-18 | Hidden fastener unit and related method of use |
EP18750041.8A EP3669036B1 (en) | 2017-08-15 | 2018-07-19 | Hidden fastener unit and related method of use |
PCT/US2018/042823 WO2019036146A1 (en) | 2017-08-15 | 2018-07-19 | Hidden fastener unit and related method of use |
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EP18750041.8A Division EP3669036B1 (en) | 2017-08-15 | 2018-07-19 | Hidden fastener unit and related method of use |
EP18750041.8A Division-Into EP3669036B1 (en) | 2017-08-15 | 2018-07-19 | Hidden fastener unit and related method of use |
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EP23177831.7A Division EP4242397B1 (en) | 2017-08-15 | 2018-07-19 | Hidden fastener unit and related method of use |
EP23177831.7A Division-Into EP4242397B1 (en) | 2017-08-15 | 2018-07-19 | Hidden fastener unit and related method of use |
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EP3892795A1 EP3892795A1 (en) | 2021-10-13 |
EP3892795B1 true EP3892795B1 (en) | 2023-08-16 |
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EP21169742.0A Active EP3892795B1 (en) | 2017-08-15 | 2018-07-19 | Hidden fastener unit and related method of use |
EP23177831.7A Active EP4242397B1 (en) | 2017-08-15 | 2018-07-19 | Hidden fastener unit and related method of use |
EP18750041.8A Active EP3669036B1 (en) | 2017-08-15 | 2018-07-19 | Hidden fastener unit and related method of use |
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EP23177831.7A Active EP4242397B1 (en) | 2017-08-15 | 2018-07-19 | Hidden fastener unit and related method of use |
EP18750041.8A Active EP3669036B1 (en) | 2017-08-15 | 2018-07-19 | Hidden fastener unit and related method of use |
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AU (2) | AU2018317991B2 (en) |
CA (1) | CA3071807C (en) |
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US10960525B2 (en) | 2018-06-15 | 2021-03-30 | National Nail Corporation | Hybrid cordless cap tool |
EP3936681A1 (en) * | 2020-07-10 | 2022-01-12 | Schmitt, Götz S. | Mounting clip, in particular for mounting boards and associated mounting system |
USD1011256S1 (en) | 2021-05-17 | 2024-01-16 | Illinois Tool Works Inc. | Wood decking tool |
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JPH0960618A (en) * | 1995-08-25 | 1997-03-04 | Nippon Iton Kogyo Kk | Fitting structure for panel |
CA2231211C (en) * | 1997-03-05 | 2006-10-31 | Harry W. Eberle, Iii | Anchoring biscuit device for joining two adjacent boards |
US6647638B1 (en) * | 2002-02-05 | 2003-11-18 | Eric Doyal | Deck spacer |
US6871467B2 (en) * | 2002-09-06 | 2005-03-29 | Robert Hafner | Decking system with clip apparatus |
US7052200B2 (en) * | 2003-09-23 | 2006-05-30 | Harris G Steven | Resilient deck board fastener |
US7984599B2 (en) * | 2006-10-09 | 2011-07-26 | Building Materials Investment Corporation | Hidden decking fastener and related method of fastening deck boards |
DE202009003138U1 (en) * | 2009-03-09 | 2010-07-29 | Rehau Ag + Co | fastener |
AU2011232781A1 (en) * | 2011-07-28 | 2013-02-21 | Quiklii Pty Ltd | Deck board spacers and fixings |
TWM441693U (en) * | 2012-06-28 | 2012-11-21 | ming-zhang Zhou | Assembling structure of base material |
DE202014004575U1 (en) * | 2014-05-24 | 2014-07-21 | Markus Rensburg | mounting bracket |
DE202014006016U1 (en) * | 2014-07-24 | 2014-09-10 | Markus Rensburg | mounting bracket |
DE102014013075A1 (en) * | 2014-09-09 | 2016-03-10 | Stefan Ehrenreich | Device for fixing planks to a substructure |
PL232369B1 (en) * | 2016-01-28 | 2019-06-28 | Salag Spolka Z Ograniczona Odpowiedzialnoscia Spolka Komandytowa | A catch and the system for the assembly of floor elements |
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- 2018-07-19 EP EP23177831.7A patent/EP4242397B1/en active Active
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2021
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TW201910653A (en) | 2019-03-16 |
EP3892795A1 (en) | 2021-10-13 |
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AU2021203822A1 (en) | 2021-07-08 |
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CA3071807C (en) | 2021-11-09 |
AU2018317991B2 (en) | 2021-03-25 |
CA3071807A1 (en) | 2019-02-21 |
WO2019036146A1 (en) | 2019-02-21 |
EP4242397A2 (en) | 2023-09-13 |
TWI679332B (en) | 2019-12-11 |
EP3669036B1 (en) | 2023-03-01 |
AU2021203822B2 (en) | 2022-04-21 |
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