US20170284592A1 - Twist-base mount - Google Patents
Twist-base mount Download PDFInfo
- Publication number
- US20170284592A1 US20170284592A1 US15/086,019 US201615086019A US2017284592A1 US 20170284592 A1 US20170284592 A1 US 20170284592A1 US 201615086019 A US201615086019 A US 201615086019A US 2017284592 A1 US2017284592 A1 US 2017284592A1
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- United States
- Prior art keywords
- base
- substrate
- screw
- mount
- dome
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 239000000758 substrate Substances 0.000 claims abstract description 28
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 230000035515 penetration Effects 0.000 claims description 3
- -1 polypropylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 239000012815 thermoplastic material Substances 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 2
- 230000005489 elastic deformation Effects 0.000 claims description 2
- 238000010079 rubber tapping Methods 0.000 claims description 2
- 229920000098 polyolefin Polymers 0.000 claims 2
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/06—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of clamps or clips
- F16B5/0685—Joining sheets or plates to strips or bars
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M13/00—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles
- F16M13/02—Other supports for positioning apparatus or articles; Means for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/01—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets for supporting or guiding the pipes, cables or protective tubing, between relatively movable points, e.g. movable channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/02—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets partly surrounding the pipes, cables or protective tubing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/08—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing
- F16L3/12—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing comprising a member substantially surrounding the pipe, cable or protective tubing
- F16L3/13—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing comprising a member substantially surrounding the pipe, cable or protective tubing and engaging it by snap action
Definitions
- This invention pertains to the field of mounts and mounting systems, and more particularly to a single-screw, rotatable mounting system for affixing a fixture to a substrate.
- the related art includes mounting systems that comprise a planar base element designed to rest against a substrate and a substrate-penetrating element that extends orthogonally downward from the base element for affixing the mount to the substrate.
- Mounting systems vary in strength (the amount of weight that can be supported when affixed to given substrate), speed of installation (the amount of time required to affix the mount to a substrate), rotational adjustability (the degree to which the mount can pivot after installation while maintaining strength), and economy (the degree to which the mount is not costly). While all four attributes are desirable, they are, in general, mutually exclusive or offsetting. For example, a strong mount would be expected to cost more, due to its complexity or materials, or require more time to install, perhaps due to multiple substrate-penetrating elements.
- the Twist-Base Mount solves the preceding dilemma by its unique structure, which couples a single-screw, substrate-penetrating element with a flexible, concave base element that, once installed, acts as a spring, exerting a downward force upon the substrate around its circumference. Because the base element is rigidly attached to the substrate-penetrating element, a force applied to the mount parallel to the plane of the substrate is offset by the pressure of the perimeter of the base element against the substrate, resulting in additional strength.
- the mount's single-screw, self-boring, substrate-penetrating element still allows quick and easy installation, and the spring-like, concave base-element permits 360-degree rotation of the mount while maintaining uniform pressure against the substrate, thereby preserving strength regardless of rotational positioning.
- the mount remains economical in relation to mounts of similar strength and rotational adjustability due to its insert-molded construction, in which the elastic base element is formed and rigidly affixed to a rigid substrate-penetrating element (such as a steel screw) by a single-step, plastic-injection molding process.
- FIG. 1 is a sectioned top view of the Twist-Base Mount showing the self-boring single screw molded into the bottom of the base element and a conduit holder attached to the top of the base element.
- FIG. 2 is a sectioned side view of the Twist-Base Mount showing the self-boring single screw protruding from the bottom of the base element and a conduit holder attached to the top of the base element, with the holder oriented perpendicular to the point of view.
- FIG. 3 is a sectioned side view of the Twist-Base Mount showing the self-boring single screw protruding from the bottom of the base element and a conduit holder attached to the top of the base element, with the holder oriented parallel to the point of view.
- FIG. 4 is a sectioned bottom view of the Twist-Base Mount showing the self-boring single screw molded into the bottom of the base element and a conduit holder attached to the top of the base element.
- FIG. 5 is a perspective view of the Twist-Base Mount showing the top of the base element, a partially-sectional view of the self-boring single screw protruding from the bottom of the base element, and a conduit holder attached to the top of the base element, with the holder oriented at a 45-degree angle to the point of view.
- FIG. 6 is a perspective view of the Twist-Base Mount showing the bottom of the base element, the self-boring single screw protruding from the bottom of the base element, and a partially-sectional view of a conduit holder attached to the top of the base element, with the holder oriented at a 45-degree angle to the point of view.
- FIG. 7 is a sectioned top view of a variation of the Twist-Base Mount in which the self-boring, single screw is not insert-molded into the base element, but rather a counter-sunk hole is provided into which a separate, self-boring single screw can be inserted.
- a conduit holder attached to the top of the base element.
- FIG. 8 is a sectioned side view of a variation of the Twist-Base Mount in which the self-boring, single screw is not insert-molded into the base element, but rather a counter-sunk hole is provided into which a separate, self-boring, single screw can be inserted.
- a conduit holder attached to the top of the base element, with the holder oriented perpendicular to the point of view.
- FIG. 9 is a sectioned side view of a variation of the Twist-Base Mount in which the self-boring, single screw is not insert-molded into the base element, but rather a counter-sunk hole is provided into which a separate, self-boring, single screw can be inserted.
- a conduit holder attached to the top of the base element, with the holder oriented parallel to the point of view.
- FIG. 10 is a perspective view of a variation of the Twist-Base Mount showing the top of the base element in which the self-boring, single screw is not insert-molded into the base element, but rather a counter-sunk hole is provided into which a separate, self-boring, single screw can be inserted.
- a conduit holder attached to the top of the base element.
- a stable, rotatably-adjustable, self-boring mount for fixtures (the “Twist-Base Mount” or “Mount”), comprises a hollow, deformable, dome-shaped base element 11 made of a thermoplastic material.
- the dome shape can be a section of a sphere or an ellipsoid cut by a plane in which the ratio of the width of the base to the height of the base can be between 4 inches and 8 inches.
- the diameter of the base can be from 1.5 inches to 2.5 inches.
- a self-boring, screw element 12 is attached to the underside of the base element.
- Base element 11 comprises a convex, fixture-supporting topside portion 9 , a concave, substrate-facing, underside portion 3 opposite the topside portion, a generally cylindrical or frustoconical hub 4 extending perpendicularly away from the center of said underside portion 3 , and a substrate-engaging portion defined by a circumferential edge 2 .
- a plurality of protuberances 1 are defined on the circumferential edge 2 .
- Each detent can have a hemispherical shape and a base diameter less than or equal to the width of the edge 2 .
- Protuberances 1 can be uniformly spaced-apart along the circumferential edge 2 .
- Hub 4 has a flat lower surface. When the Mount is installed, the lower surface of hub 4 abuts the substrate, preventing further penetration of the substrate by screw element 12 , which in turn prevents an excessive deformation of base 11 .
- Screw element 12 comprises a non-circular head portion 5 (for instance, a hex head, as depicted, or a thumb-screw head) that resists twisting when embedded in the base element, a shaft with a threaded portion 8 , an optional non-threaded portion 10 , and a pointed substrate-engaging tip with sharp threads to facilitate self-boring penetration of the substrate and fixation to the substrate with sufficient grip to compress the circumferential edge 2 against the substrate and effectuate a counteracting elastic deformation of the dome-shaped base element 11 .
- Non-circular head portion 5 is rigidly embedded in hub portion 4 .
- Threaded portion 8 can have a thread density between 10 and 16 threads per inch.
- Threaded portion 8 and non-threaded portion 10 are, optionally, tapered.
- the screw element has a tip 6 that is, optionally, self-tapping and/or self-drilling.
- the length of the screw can be from 0.5 to 1.5 inches.
- a fixture such as a conduit holder 7 is attached to the topside of the base element.
- the base element 11 is rigidly attached to the screw element 12 , a force applied to the fixture 7 in the plane perpendicular to the axis of the screw element 12 is counteracted by a force exerted on the substrate by the circumferential edge 2 of the elastically-deformable, spring-like base element 11 .
- this spring-like quality imparts additional strength to the Twist-Base Mount, while the Mount's single-screw, self-boring, substrate-penetrating element still permits quick and easy installation, and the spring-like quality of base element 11 permits 360-degree rotation of the mount while maintaining uniform pressure against the substrate, thereby preserving strength regardless of the rotational positioning of the Mount.
- FIGS. 7-10 depict a variation of the Twist-Base Mount (the “Countersunk Mount”) that is identical to the Twist-Base Mount except that a self-boring, single screw is not insert-molded into the base element, but rather a countersunk hole is provided into which a separate, self-boring, single screw can be inserted and seated.
- the features of the Countersunk Mount depicted in FIGS. 7, 8, 9, and 10 are identical to those of Twist-Base Mount depicted in FIGS. 1, 2, 3, and 4 except that the screw element 12 appearing in FIGS. 1, 2, 3, and 4 is absent and instead, in the same location, a hole 13 is bored through the center and along the axis of the base element 11 and the hub 4 .
- Said hole has a wider, optionally conical and tapered, upper portion 14 and a narrower lower portion 15 such that a screw (supplied separately), comprising a head portion and a narrower shaft portion, where said head portion is narrower that the diameter of the wider upper portion 14 of the hole, but wider that the diameter of the narrower lower portion 15 of the hole, can be inserted into the hole with the bottom of said head portion seated against the surface formed by the junction of the wider upper portion 14 and the narrower lower portion 15 of the hole 13 , or if the upper portion of the hole is conical and tapered, then against its conical, tapered surface.
- the Countersunk Mount is affixed to the substrate with a separately-supplied screw.
- FIGS. 1-10 wherein a conduit holder is attached to the top of the rotatable base, is just one possible use of the Twist-Base Mount.
- Other embodiments may incorporate different holders, fixtures, hooks, anchors, or cleats in place of the conduit holder.
- a Twist-Base Mount can be made by insert-molding a 1.5′′ steel screw element 12 with a polypropylene 2′′ diameter base element 11 in an injection-molding machine.
- the wall thickness of base element 11 i.e. the distance between the convex, fixture-supporting topside portion 9 and the concave, substrate-facing, underside portion 3 ) is uniform.
- One suitable wall thickness when the base is 2′′ in diameter and made of polypropylene is 0.093 inches.
- the base element 11 may be made of any elastic material so long as the wall thickness of the base element is adjusted correlatively to produce a similar modulus of flexibility. In the embodiment shown in FIGS.
- the hub 4 extends from the center of the underside portion 3 of the base 11 in the direction of the substrate along the axis of the screw 12 a distance less than the furthest extent of the nubs on the circumferential edge by 150% of the thread pitch of the screw. This relationship between the lower extent of the base 11 and the lower extent of the hub 4 permits the base to rotate 360 degrees while maintaining contact between the nubs and the substrate, yet avoids excessive deformation of the base by over-penetration of the screw into the substrate.
Abstract
The Twist-Base Mount couples a single-screw, substrate-penetrating element with an elastically-deformable, concave base element that, once installed, acts as a spring, exerting a downward force upon the substrate around its circumference. Because the base element is rigidly attached to the substrate-penetrating element, a force applied to the Mount parallel to the plane of the substrate is offset by the pressure of the perimeter of the base element against the substrate, resulting in additional strength. The Mount's single-screw, self-boring element allows quick and easy installation. The spring-like base-element permits 360-degree rotation of the Mount while maintaining uniform pressure against the substrate, thereby preserving strength regardless of rotational positioning. The mount remains economical in relation to mounts of similar strength and rotational adjustability due to its insert-molded construction.
Description
- Not Applicable.
- This invention pertains to the field of mounts and mounting systems, and more particularly to a single-screw, rotatable mounting system for affixing a fixture to a substrate.
- The related art includes mounting systems that comprise a planar base element designed to rest against a substrate and a substrate-penetrating element that extends orthogonally downward from the base element for affixing the mount to the substrate.
- Mounting systems vary in strength (the amount of weight that can be supported when affixed to given substrate), speed of installation (the amount of time required to affix the mount to a substrate), rotational adjustability (the degree to which the mount can pivot after installation while maintaining strength), and economy (the degree to which the mount is not costly). While all four attributes are desirable, they are, in general, mutually exclusive or offsetting. For example, a strong mount would be expected to cost more, due to its complexity or materials, or require more time to install, perhaps due to multiple substrate-penetrating elements.
- The Twist-Base Mount solves the preceding dilemma by its unique structure, which couples a single-screw, substrate-penetrating element with a flexible, concave base element that, once installed, acts as a spring, exerting a downward force upon the substrate around its circumference. Because the base element is rigidly attached to the substrate-penetrating element, a force applied to the mount parallel to the plane of the substrate is offset by the pressure of the perimeter of the base element against the substrate, resulting in additional strength. Yet the mount's single-screw, self-boring, substrate-penetrating element still allows quick and easy installation, and the spring-like, concave base-element permits 360-degree rotation of the mount while maintaining uniform pressure against the substrate, thereby preserving strength regardless of rotational positioning. Nonetheless, the mount remains economical in relation to mounts of similar strength and rotational adjustability due to its insert-molded construction, in which the elastic base element is formed and rigidly affixed to a rigid substrate-penetrating element (such as a steel screw) by a single-step, plastic-injection molding process.
-
FIG. 1 is a sectioned top view of the Twist-Base Mount showing the self-boring single screw molded into the bottom of the base element and a conduit holder attached to the top of the base element. -
FIG. 2 is a sectioned side view of the Twist-Base Mount showing the self-boring single screw protruding from the bottom of the base element and a conduit holder attached to the top of the base element, with the holder oriented perpendicular to the point of view. -
FIG. 3 is a sectioned side view of the Twist-Base Mount showing the self-boring single screw protruding from the bottom of the base element and a conduit holder attached to the top of the base element, with the holder oriented parallel to the point of view. -
FIG. 4 is a sectioned bottom view of the Twist-Base Mount showing the self-boring single screw molded into the bottom of the base element and a conduit holder attached to the top of the base element. -
FIG. 5 is a perspective view of the Twist-Base Mount showing the top of the base element, a partially-sectional view of the self-boring single screw protruding from the bottom of the base element, and a conduit holder attached to the top of the base element, with the holder oriented at a 45-degree angle to the point of view. -
FIG. 6 is a perspective view of the Twist-Base Mount showing the bottom of the base element, the self-boring single screw protruding from the bottom of the base element, and a partially-sectional view of a conduit holder attached to the top of the base element, with the holder oriented at a 45-degree angle to the point of view. -
FIG. 7 is a sectioned top view of a variation of the Twist-Base Mount in which the self-boring, single screw is not insert-molded into the base element, but rather a counter-sunk hole is provided into which a separate, self-boring single screw can be inserted. A conduit holder attached to the top of the base element. -
FIG. 8 is a sectioned side view of a variation of the Twist-Base Mount in which the self-boring, single screw is not insert-molded into the base element, but rather a counter-sunk hole is provided into which a separate, self-boring, single screw can be inserted. A conduit holder attached to the top of the base element, with the holder oriented perpendicular to the point of view. -
FIG. 9 is a sectioned side view of a variation of the Twist-Base Mount in which the self-boring, single screw is not insert-molded into the base element, but rather a counter-sunk hole is provided into which a separate, self-boring, single screw can be inserted. A conduit holder attached to the top of the base element, with the holder oriented parallel to the point of view. -
FIG. 10 is a perspective view of a variation of the Twist-Base Mount showing the top of the base element in which the self-boring, single screw is not insert-molded into the base element, but rather a counter-sunk hole is provided into which a separate, self-boring, single screw can be inserted. A conduit holder attached to the top of the base element. - Referring to
FIGS. 1-6 , a stable, rotatably-adjustable, self-boring mount for fixtures (the “Twist-Base Mount” or “Mount”), comprises a hollow, deformable, dome-shaped base element 11 made of a thermoplastic material. The dome shape can be a section of a sphere or an ellipsoid cut by a plane in which the ratio of the width of the base to the height of the base can be between 4 inches and 8 inches. The diameter of the base can be from 1.5 inches to 2.5 inches. A self-boring,screw element 12 is attached to the underside of the base element.Base element 11 comprises a convex, fixture-supporting topside portion 9, a concave, substrate-facing,underside portion 3 opposite the topside portion, a generally cylindrical or frustoconical hub 4 extending perpendicularly away from the center of saidunderside portion 3, and a substrate-engaging portion defined by acircumferential edge 2. A plurality of protuberances 1 (each, a “detent” or “nub”) are defined on thecircumferential edge 2. Each detent can have a hemispherical shape and a base diameter less than or equal to the width of theedge 2.Protuberances 1 can be uniformly spaced-apart along thecircumferential edge 2. The detents provide additional friction between theedge 2 and the substrate to prevent unintentional rotation of thebase 11. Hub 4 has a flat lower surface. When the Mount is installed, the lower surface of hub 4 abuts the substrate, preventing further penetration of the substrate byscrew element 12, which in turn prevents an excessive deformation ofbase 11. Screwelement 12 comprises a non-circular head portion 5 (for instance, a hex head, as depicted, or a thumb-screw head) that resists twisting when embedded in the base element, a shaft with a threadedportion 8, an optionalnon-threaded portion 10, and a pointed substrate-engaging tip with sharp threads to facilitate self-boring penetration of the substrate and fixation to the substrate with sufficient grip to compress thecircumferential edge 2 against the substrate and effectuate a counteracting elastic deformation of the dome-shaped base element 11. Non-circularhead portion 5 is rigidly embedded in hub portion 4. Threadedportion 8 can have a thread density between 10 and 16 threads per inch. Threadedportion 8 and non-threaded portion 10 (collectively, the “shank” of the screw element) are, optionally, tapered. The screw element has atip 6 that is, optionally, self-tapping and/or self-drilling. The length of the screw can be from 0.5 to 1.5 inches. A fixture such as aconduit holder 7 is attached to the topside of the base element. - Because the
base element 11 is rigidly attached to thescrew element 12, a force applied to thefixture 7 in the plane perpendicular to the axis of thescrew element 12 is counteracted by a force exerted on the substrate by thecircumferential edge 2 of the elastically-deformable, spring-like base element 11. Unlike the prior art, this spring-like quality imparts additional strength to the Twist-Base Mount, while the Mount's single-screw, self-boring, substrate-penetrating element still permits quick and easy installation, and the spring-like quality ofbase element 11 permits 360-degree rotation of the mount while maintaining uniform pressure against the substrate, thereby preserving strength regardless of the rotational positioning of the Mount. -
FIGS. 7-10 depict a variation of the Twist-Base Mount (the “Countersunk Mount”) that is identical to the Twist-Base Mount except that a self-boring, single screw is not insert-molded into the base element, but rather a countersunk hole is provided into which a separate, self-boring, single screw can be inserted and seated. The features of the Countersunk Mount depicted inFIGS. 7, 8, 9, and 10 are identical to those of Twist-Base Mount depicted inFIGS. 1, 2, 3, and 4 except that thescrew element 12 appearing inFIGS. 1, 2, 3, and 4 is absent and instead, in the same location, ahole 13 is bored through the center and along the axis of thebase element 11 and the hub 4. Said hole has a wider, optionally conical and tapered,upper portion 14 and a narrowerlower portion 15 such that a screw (supplied separately), comprising a head portion and a narrower shaft portion, where said head portion is narrower that the diameter of the widerupper portion 14 of the hole, but wider that the diameter of the narrowerlower portion 15 of the hole, can be inserted into the hole with the bottom of said head portion seated against the surface formed by the junction of the widerupper portion 14 and the narrowerlower portion 15 of thehole 13, or if the upper portion of the hole is conical and tapered, then against its conical, tapered surface. The Countersunk Mount is affixed to the substrate with a separately-supplied screw. - The embodiments depicted in
FIGS. 1-10 , wherein a conduit holder is attached to the top of the rotatable base, is just one possible use of the Twist-Base Mount. Other embodiments may incorporate different holders, fixtures, hooks, anchors, or cleats in place of the conduit holder. - A Twist-Base Mount can be made by insert-molding a 1.5″
steel screw element 12 with apolypropylene 2″diameter base element 11 in an injection-molding machine. Typically, the wall thickness of base element 11 (i.e. the distance between the convex, fixture-supporting topside portion 9 and the concave, substrate-facing, underside portion 3) is uniform. One suitable wall thickness when the base is 2″ in diameter and made of polypropylene is 0.093 inches. Thebase element 11 may be made of any elastic material so long as the wall thickness of the base element is adjusted correlatively to produce a similar modulus of flexibility. In the embodiment shown inFIGS. 1-6 , the hub 4 extends from the center of theunderside portion 3 of thebase 11 in the direction of the substrate along the axis of the screw 12 a distance less than the furthest extent of the nubs on the circumferential edge by 150% of the thread pitch of the screw. This relationship between the lower extent of thebase 11 and the lower extent of the hub 4 permits the base to rotate 360 degrees while maintaining contact between the nubs and the substrate, yet avoids excessive deformation of the base by over-penetration of the screw into the substrate.
Claims (19)
1. A stable, rotatably-adjustable mount for a fixture, comprising:
a plastically-deformable, domeshaped base having a convex, fixture-supporting topside portion and a concave, substrate-facing, underside portion opposite the topside portion, having a substrate-engaging portion defined by a circumferential edge, wherein the dome shaped base is a section of a hollow sphere cut by a plane;
a single screw with a non-circular head that resists twisting, said head rigidly embedded in a conical hub extending perpendicularly away from a center of the underside portion, said screw projecting perpendicularly away from the conical hub and having a pointed substrate-engaging tip and sharp threads to facilitate: (a) self-boring penetration of the substrate, (b) compression of the circumferential edge of the base against the substrate, and (c) a corresponding elastic deformation of the dome; and
a fixture attached to the fixture-supporting portion of the base,
wherein said hub includes a bottom portion having a flat surface that acts as a stop to limit deformation of the wall of the hub.
2. The device of claim 1 , wherein said circumferential edge has protuberances uniformly spaced apart along the edge to provide additional friction between the edge and the substrate to prevent unintentional rotation of the base.
3. A device for securely and rotatably holding a first object on a surface of a second object, comprising:
a deformable hollow base having a wall defining a dome shape, the wall having a lower circumferential edge for engaging a substantially flat surface of the second object, wherein the dome shape is a section of a sphere cut by a plane; and
a single screw extending lengthwise from a top of the dome-shaped base along an axis perpendicular to a plane defined by the lower circumferential edge of the dome shaped base,
wherein the base is comprised of a thermoplastic material and a non-circular head of the screw is embedded in the thermoplastic material of the base.
4-5. (canceled)
6. The device of claim 3 , in which a countersunk hole is defined at the top of the dome-shaped base and the screw includes a shank that extends through the hole and a head seated in a countersink of the hole.
7. The device of claim 3 , in which the dome-shaped base is comprised of a polyolefin.
8. The device of claim 7 , in which the polyolefin is polypropylene.
9. The device of claim 3 , in which a plurality of nubs are defined on the lower circumferential edge of the wall of the dome-shaped base.
10. (canceled)
11. The device of claim 3 , in which the dome shape is a section of an ellipsoid cut by a plane perpendicular to a major or minor axis of the ellipsoid.
12. The device of claim 3 , in which the screw has a thread density of at least 10 threads per inch.
13. The device of claim 3 , in which the screw has a thread density of at least 16 threads per inch.
14. The device of claim 3 , in which the screw has a tapered shank.
15. The device of claim 12 , in which the screw is self-tapping.
16. The device of claim 12 , in which the screw is self-drilling.
17. The device of claim 3 , in which a length ratio of the width of the base to the height of the base is from 4 to 8.
18. The device of claim 3 , in which a length ratio of the width of the base to the height of the base is about 6.
19. The device of claim 3 , in which the base includes a hub portion extending from the top of the base toward a plane defined by the lower circumferential edge of the wall of the base, the bottom of the hub having a flat surface that acts as a stop to limit deformation of the wall of the hub.
20. The device of claim 1 , in which the diameter of the base is from 1.5 to 2.5 inches and the length of the screw is from 0.5 to 1.5 inches.
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/086,019 US20170284592A1 (en) | 2016-03-30 | 2016-03-30 | Twist-base mount |
US15/679,297 US20180023759A1 (en) | 2016-03-30 | 2017-08-17 | Assembly Including a Mounting Portion and an Implement-Retaining Portion |
US17/010,282 US20200400174A1 (en) | 2016-03-30 | 2020-09-02 | Twist-Base Mount |
US17/070,635 US20210270413A1 (en) | 2016-03-30 | 2020-10-14 | Assembly Including a Mounting Portion and an Implement-Retaining Portion |
US17/228,984 US20210231145A1 (en) | 2016-03-30 | 2021-04-13 | Twist-Base Mount |
US17/326,595 US20210278033A1 (en) | 2016-03-30 | 2021-05-21 | Assembly Including a Mounting Portion and an Implement-Retaining Portion |
US17/530,947 US20220074439A1 (en) | 2016-03-30 | 2021-11-19 | Twist-Base Mount |
US17/565,736 US20220120376A1 (en) | 2016-03-30 | 2021-12-30 | Assembly Including a Mounting Portion and an Implement-Retaining Portion |
US17/854,326 US11815126B2 (en) | 2016-03-30 | 2022-06-30 | Twist-base mount |
US17/887,602 US20220390063A1 (en) | 2016-03-30 | 2022-08-15 | Assembly Including a Mounting Portion and an Implement-Retaining portion |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/086,019 US20170284592A1 (en) | 2016-03-30 | 2016-03-30 | Twist-base mount |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/679,297 Continuation-In-Part US20180023759A1 (en) | 2016-03-30 | 2017-08-17 | Assembly Including a Mounting Portion and an Implement-Retaining Portion |
US17/010,282 Continuation US20200400174A1 (en) | 2016-03-30 | 2020-09-02 | Twist-Base Mount |
Publications (1)
Publication Number | Publication Date |
---|---|
US20170284592A1 true US20170284592A1 (en) | 2017-10-05 |
Family
ID=59959217
Family Applications (5)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/086,019 Abandoned US20170284592A1 (en) | 2016-03-30 | 2016-03-30 | Twist-base mount |
US17/010,282 Abandoned US20200400174A1 (en) | 2016-03-30 | 2020-09-02 | Twist-Base Mount |
US17/228,984 Abandoned US20210231145A1 (en) | 2016-03-30 | 2021-04-13 | Twist-Base Mount |
US17/530,947 Abandoned US20220074439A1 (en) | 2016-03-30 | 2021-11-19 | Twist-Base Mount |
US17/854,326 Active US11815126B2 (en) | 2016-03-30 | 2022-06-30 | Twist-base mount |
Family Applications After (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US17/010,282 Abandoned US20200400174A1 (en) | 2016-03-30 | 2020-09-02 | Twist-Base Mount |
US17/228,984 Abandoned US20210231145A1 (en) | 2016-03-30 | 2021-04-13 | Twist-Base Mount |
US17/530,947 Abandoned US20220074439A1 (en) | 2016-03-30 | 2021-11-19 | Twist-Base Mount |
US17/854,326 Active US11815126B2 (en) | 2016-03-30 | 2022-06-30 | Twist-base mount |
Country Status (1)
Country | Link |
---|---|
US (5) | US20170284592A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10907750B2 (en) * | 2019-04-29 | 2021-02-02 | Aptiv Technologies Limited | Modular retainer assembly |
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2020
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2021
- 2021-04-13 US US17/228,984 patent/US20210231145A1/en not_active Abandoned
- 2021-11-19 US US17/530,947 patent/US20220074439A1/en not_active Abandoned
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Publication number | Priority date | Publication date | Assignee | Title |
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US10907750B2 (en) * | 2019-04-29 | 2021-02-02 | Aptiv Technologies Limited | Modular retainer assembly |
US11339898B2 (en) | 2019-04-29 | 2022-05-24 | Aptiv Technologies Limited | Modular retainer assembly |
Also Published As
Publication number | Publication date |
---|---|
US20220333628A1 (en) | 2022-10-20 |
US11815126B2 (en) | 2023-11-14 |
US20210231145A1 (en) | 2021-07-29 |
US20200400174A1 (en) | 2020-12-24 |
US20220074439A1 (en) | 2022-03-10 |
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