US20120311830A1 - Hook fastener with spring closure - Google Patents
Hook fastener with spring closure Download PDFInfo
- Publication number
- US20120311830A1 US20120311830A1 US13/507,170 US201213507170A US2012311830A1 US 20120311830 A1 US20120311830 A1 US 20120311830A1 US 201213507170 A US201213507170 A US 201213507170A US 2012311830 A1 US2012311830 A1 US 2012311830A1
- Authority
- US
- United States
- Prior art keywords
- keeper
- projection
- mouth
- external face
- closure
- 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
- 230000008878 coupling Effects 0.000 claims description 14
- 238000010168 coupling process Methods 0.000 claims description 14
- 238000005859 coupling reaction Methods 0.000 claims description 14
- 230000000295 complement effect Effects 0.000 claims description 4
- 239000012858 resilient material Substances 0.000 claims description 2
- 238000007792 addition Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
Images
Classifications
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- 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
- F16B45/00—Hooks; Eyes
- F16B45/04—Hooks with sliding closing member
- F16B45/049—Hooks with sliding closing member provided with means biasing the closing member
-
- 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
- F16B45/00—Hooks; Eyes
- F16B45/04—Hooks with sliding closing member
-
- 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
- F16B45/00—Hooks; Eyes
- F16B45/02—Hooks with pivoting or elastically bending closing member
- F16B45/027—Hooks with pivoting or elastically bending closing member and having position-locking means for the closing member
- F16B45/029—Hooks with pivoting or elastically bending closing member and having position-locking means for the closing member the position-locking means being slidably mounted
-
- 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
- F16B45/00—Hooks; Eyes
- F16B45/04—Hooks with sliding closing member
- F16B45/045—Hooks with sliding closing member provided with position-locking means for the closing member
-
- 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
- F16B45/00—Hooks; Eyes
- F16B45/04—Hooks with sliding closing member
- F16B45/053—Hooks with sliding closing member provided with a cavity in a shank of the hook forming a track or way for the closing member
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/40—Buckles
- Y10T24/4002—Harness
- Y10T24/4005—Combined buckles and snap hooks
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/40—Buckles
- Y10T24/4002—Harness
- Y10T24/4007—Lock
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/45—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock]
- Y10T24/45225—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock] including member having distinct formations and mating member selectively interlocking therewith
- Y10T24/45272—Projection passes through cavity then moves toward noninserted portion of its member to complete interlock [e.g., snap hook]
- Y10T24/45288—Hook type projection member
- Y10T24/45304—Noninserted portion of projection member includes movably connected gate for closing access throat
- Y10T24/45382—Track or way guided gate
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/45—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock]
- Y10T24/45225—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock] including member having distinct formations and mating member selectively interlocking therewith
- Y10T24/45272—Projection passes through cavity then moves toward noninserted portion of its member to complete interlock [e.g., snap hook]
- Y10T24/45288—Hook type projection member
- Y10T24/45304—Noninserted portion of projection member includes movably connected gate for closing access throat
- Y10T24/45382—Track or way guided gate
- Y10T24/45387—Track or way guided gate having means biasing gate
- Y10T24/45398—Cavity in shank forms track or way
- Y10T24/45403—Cavity in shank forms track or way with position locking-means for gate
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/47—Strap-end-attaching devices
- Y10T24/4755—Hook
Definitions
- the present invention relates to a hook fastener for connecting a belt, such as a sling of a camera, shoulder belt of a bag, or another type of belt, and a 5 connecting device such as a ring.
- a hook fastener with a spring closure is commonly used for engaging a ring or a fitting on a bag, camera, or the like, for attaching a belt.
- a bag may be provided, for instance, with a 10 detachable shoulder strap or carry handle.
- a common hook fastener for this application has a sliding closure urged by a spring to close the mouth of the hook.
- a hook 5 fastener comprising:
- the keeper is formed of resilient material and has an inner surface complementary to the external face of the base portion, and at least one projection extending radially inwardly of the inner surface, each projection 5 being configured for receipt in the mouth thereby providing a detent for locating the keeper in an angular position in which it prevents the user retracting the closure from the gap.
- the projection and mouth have first respective edges which substantially abut to restrict rotation of the keeper relative to the body in a first 10 direction, and second respective edges which substantially abut to restrict relative rotation of the keeper in a second direction opposite the first direction, wherein at least one of the first and second edges is radiused or chamfered relative to the others of the first and second edges.
- the keeper has a penannular form, and the inner surface is part-15cylindrical.
- the keeper further includes a part-cylindrical outer surface and a tab projecting from the outer surface for providing a handle.
- one of said projections is angularly aligned with the tab.
- the keeper has inner and outer end surfaces disposed proximate the 20 abutment face and grip part respectively, and wherein a nub projects from the outer surface to abut the grip part and restrict rotation of the keeper.
- a plurality of slotted keepers may be mounted for rotation on the external face.
- This invention provides a device which effectively and efficiently provides a degree of casual security for hook fasteners and it has a simple design which 5 minimises manufacturing costs.
- FIG. 1 is a perspective view of hook fastener according to a first embodiment of the present invention
- FIG. 2 is an exploded view of the hook fastener of FIG. 1 ;
- FIG. 3 is a cross section through the hook fastener of FIG. 1 ;
- FIG. 4 is a perspective view of hook fastener according to a second 15 embodiment of the present invention.
- FIG. 5 is an exploded view of the hook fastener of FIG. 4 .
- a first embodiment of a hook fastener 10 for connecting a belt 11 includes a D-shaped ring coupling 12 to which the belt is connected and a body 13 permanently connected to the ring coupling 12 for relative rotation about an axis 14 .
- the body 13 includes a base portion 15 and a hook portion 16 extending from 5 a first end of the base portion 15 to define a gap 17 between the hook and the base portions.
- At a second end of the base portion 15 are inner and outer circumferential ribs 18 , 19 disposed generally transversely and spaced longitudinally.
- the inner rib 18 defines an abutment that projects outwardly from a cylindrical, axially-aligned external face 20 of the base portion 15 . 10 Both the ribs 18 , 19 project outward from a cylindrical section 21 extending therebetween.
- the inner rib 18 has a transverse abutment face 22 intersecting the external face 20 .
- An opening 23 extends in the axial direction through the base portion.
- the opening 23 includes a cylindrical part 24 extending the full length of the base portion 15 and a slot part 25 which 15 intersects with the cylindrical part 24 , forming a keyhole-shaped section extending from the second end, through the rib 19 , cylindrical section 21 and rib 18 to terminate at transverse end face 26 .
- An elongate mouth 27 formed by the slot part 25 —intersects with the external face 20 .
- a closure 28 has a shaft part 29 complementary to the cylindrical part 24 of 20 the opening 23 .
- a grip 30 includes a bulbous head 31 joined by a neck 32 to the shaft part 29 .
- the neck 32 extends radially and is complementary to the slot part 25 .
- the D-shaped ring coupling 12 includes a transverse arm section 36 joined by arcuate arms 37 , 38 to two transverse flanges 33 , 34 .
- An opening 35 in the outer flange 33 is sized to receive the outer rib 19 therethrough and the flanges 33 , 34 are axially spaced sufficiently to receive the rib 19 between 5 them.
- a keeper 40 moulded from a resilient polymer has a substantially penannular form having parallel end faces 41 , 42 lying in respective radial planes.
- An axial slot 43 extends in the axial direction between the end faces 41 , 42 .
- the keeper 40 has coaxial, substantially cylindrical inner and outer faces 45 , 46 10 and a tab 44 projects radially from the outer face 46 on one side of the slot 43 .
- a nub 47 is formed on the radial face 41 . Aligned with the inner end of the tab 44 , a projection 48 extends inwardly from the cylindrical face 45 .
- a radiused edge 49 joins the projection 48 to the cylindrical face 45 , while the opposing edge 50 of the projection 48 , bounding 15 the slot 43 , is relatively sharp. Likewise the opposing edges 51 , 52 of the mouth 27 are relatively sharp.
- the closure 28 is inserted in the opening 23 , sliding the neck 32 through the slot part 25 into the mouth 27 .
- Capturing a helical compression spring 60 between the flange 34 and shaft part 29 the 20 rib 19 is entered through the opening 35 into the space between the flanges 33 , 34 .
- the outer flange 33 may then be deformed to permanently connect the base portion 15 and ring coupling 12 , while allowing free relative rotation between them.
- the slot 43 is opened to insert the keeper 40 over the external face 20 , between the abutment face 22 and the grip 30 .
- the spring 60 moves the closure 28 to its closed position, urging the shaft 29 out of the opening into the gap 17 toward the hook portion 16 .
- the grip 30 5 protrudes through the mouth 27 , but before the user can manipulate the grip 30 to open the closure 28 the keeper 40 must be rotated to angularly aligned the slot 43 with the mouth 27 (as shown in FIG. 3 ) and in all other angular positions the keeper 40 prevents axial movement of the closure 28 .
- the nub 47 provides a stop surface which abuts the neck 32 , providing a limit 10 to rotation of the keeper 40 in a first direction (as shown in FIG. 1 ).
- the tab 44 is rotated in a second direction opposite the first direction generally into axial alignment with the grip 30 , the projection 48 is urged into the mouth 27 . Further rotation of the keeper in the second direction is resisted by abutment between the relatively sharp edges 50 , 51 whereas rotation in the 15 first direction is facilitated by virtue of the radiused edge 49 abutting the edge 52 .
- the projection 48 thus provides a stop or detent limiting rotation of the keeper 40 in a second direction. Therefore, without needing to check visually, or to manually try the closure, the user can ensure that the closure is locked when the keeper 40 is rotated in either direction to the end of its travel.
- a second embodiment of a hook fastener 110 shown in FIGS. 4 and 5 includes a body 113 , keeper 140 and D-shaped ring coupling 112 .
- This second embodiment differs from the first in that the axis of rotation 14 of the body 113 relative to the D-shaped ring coupling 112 is acutely inclined to the axis 70 of the cylindrical part 24 and the cylindrical section 21 , along which the closure reciprocates.
- the axis 14 bisects the transverse arm section 36 , passes 5 through the apex 71 of the concave face of the hook portion 16 and intersects with the axis 70 at approximately 15 degrees.
- the axes of the cylindrical section 21 and external face 20 are inclined to one another and the flange 18 is tapered.
- the cylindrical section 21 forms a neck that extends between the inner flange 18 and a head 72 in which the transverse end face 10 26 is provided.
- the head 72 has the same outer diameter as the penannular part of the keeper 140 .
- the penannular face 73 formed by the broader head 72 is parallel to the abutment face 22 and the keeper 140 is located between the faces 73 and 22 .
- the keeper 140 has like form to the keeper 40 of the first embodiment, but 15 without the nub 47 .
- the D-shaped ring coupling 112 has like form to the ring coupling 12 of the first embodiment, but without the transverse flange 34 .
- the hook fastener 110 further includes a fastener 75 which is fixed in the end of the cylindrical part 24 of the opening 23 to bear against on end of the spring 60 .
- the second embodiment works in like manner to the first but (in the absence of the nub 47 ) it is the tab 44 that serves to limit rotation of the keeper 140 about the axis 70 by abutting the hook part 16 .
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Slide Fasteners (AREA)
- Slide Fasteners, Snap Fasteners, And Hook Fasteners (AREA)
Abstract
A hook fastener having a closure for closing a hook mouth. A keeper selectively prevents opening of the closure and includes a body having a base and a hook extending from the base to define a gap. The base has an external face and an opening with a mouth intersecting the external face. The closure includes a shaft and a grip, the grip protruding from the shaft through the mouth. A spring urges the closure such that the shaft may selectively extend out of the opening. The keeper is received to rotate upon the external face. A slot in the keeper extends parallel to the mouth, the keeper selectively preventing the user from retracting the closure from the gap.
Description
- This application is a continuation of my pending application Ser. No. 12/460244, filed Jul. 16, 2009, Title: HOOK FASTENER WITH SPRING CLOSURE and I claim the benefit with respect thereto under 35 U.S.C. Section 120.
- The present invention relates to a hook fastener for connecting a belt, such as a sling of a camera, shoulder belt of a bag, or another type of belt, and a 5 connecting device such as a ring.
- A hook fastener with a spring closure is commonly used for engaging a ring or a fitting on a bag, camera, or the like, for attaching a belt. By releasably fastening the belt in this way, a bag may be provided, for instance, with a 10 detachable shoulder strap or carry handle. A common hook fastener for this application has a sliding closure urged by a spring to close the mouth of the hook.
- To provide some degree of security when leaving a bag briefly unattended the user may loop a releasably fastened shoulder strap about a piece of furniture, 15 or the like. This simple technique can be performed quickly and without drawing attention and this has been found sufficient to defeat casual theft. Of course for greater security the end of the strap could be fixed to the bag by a lock, however a lock would add considerable cost and weight to the fastener. It will be understood, therefore, that there is a need for a hook fastener for 20 such an application that is able to provide improved deterrence of casual theft, without substantially increasing the cost of the fastener. It is an object of the present invention to overcome to address this need or, more generally, to provide an improved hook fastener.
- According to one aspect of the present invention there is provided a hook 5 fastener comprising:
-
- a body having a base portion and a hook portion extending from an end of the base portion to define a gap between the hook and the base portion;
- an external face on the base portion;
- an abutment on, or fastened to, the body to project from the external face;
- 10 an opening formed in the base portion, the opening having an elongate mouth intersecting the external face;
- a closure having a shaft part and a grip part, the shaft part received in the opening, the grip part protruding from the shaft part through the mouth for manipulation by a user;
- 15 a spring urging the closure such that the shaft part extends out of the opening into the gap, and
- a keeper received to rotate upon the external face, the keeper being located between the abutment and grip part, a slot in the keeper extending parallel to the mouth, the keeper preventing the user retracting the closure from the gap, 20 except when the slot is angularly aligned with the mouth.
- Preferably the keeper is formed of resilient material and has an inner surface complementary to the external face of the base portion, and at least one projection extending radially inwardly of the inner surface, each projection 5 being configured for receipt in the mouth thereby providing a detent for locating the keeper in an angular position in which it prevents the user retracting the closure from the gap.
- Preferably the projection and mouth have first respective edges which substantially abut to restrict rotation of the keeper relative to the body in a first 10 direction, and second respective edges which substantially abut to restrict relative rotation of the keeper in a second direction opposite the first direction, wherein at least one of the first and second edges is radiused or chamfered relative to the others of the first and second edges.
- Preferably the keeper has a penannular form, and the inner surface is part-15cylindrical.
- Preferably the keeper further includes a part-cylindrical outer surface and a tab projecting from the outer surface for providing a handle. Preferably one of said projections is angularly aligned with the tab.
- Preferably the keeper has inner and outer end surfaces disposed proximate the 20 abutment face and grip part respectively, and wherein a nub projects from the outer surface to abut the grip part and restrict rotation of the keeper.
- Optionally a plurality of slotted keepers may be mounted for rotation on the external face.
- This invention provides a device which effectively and efficiently provides a degree of casual security for hook fasteners and it has a simple design which 5 minimises manufacturing costs.
- Preferred forms of the present invention will now be described by way of example with reference to the accompanying drawings, wherein:
- 10
FIG. 1 is a perspective view of hook fastener according to a first embodiment of the present invention; -
FIG. 2 is an exploded view of the hook fastener ofFIG. 1 ; -
FIG. 3 is a cross section through the hook fastener ofFIG. 1 ; -
FIG. 4 is a perspective view of hook fastener according to a second 15 embodiment of the present invention, and -
FIG. 5 is an exploded view of the hook fastener ofFIG. 4 . - Referring to
FIGS. 1 and 2 of the drawings a first embodiment of ahook fastener 10 for connecting abelt 11 includes a D-shaped ring coupling 12 to which the belt is connected and abody 13 permanently connected to thering coupling 12 for relative rotation about anaxis 14. - The
body 13 includes abase portion 15 and ahook portion 16 extending from 5 a first end of thebase portion 15 to define agap 17 between the hook and the base portions. At a second end of thebase portion 15 are inner and outercircumferential ribs inner rib 18 defines an abutment that projects outwardly from a cylindrical, axially-alignedexternal face 20 of thebase portion 15. 10 Both theribs cylindrical section 21 extending therebetween. Theinner rib 18 has atransverse abutment face 22 intersecting theexternal face 20. Anopening 23 extends in the axial direction through the base portion. The opening 23 includes acylindrical part 24 extending the full length of thebase portion 15 and aslot part 25 which 15 intersects with thecylindrical part 24, forming a keyhole-shaped section extending from the second end, through therib 19,cylindrical section 21 andrib 18 to terminate attransverse end face 26. Anelongate mouth 27—formed by theslot part 25—intersects with theexternal face 20. - A
closure 28 has ashaft part 29 complementary to thecylindrical part 24 of 20 the opening 23. Agrip 30 includes abulbous head 31 joined by aneck 32 to theshaft part 29. Theneck 32 extends radially and is complementary to theslot part 25. - The D-
shaped ring coupling 12 includes atransverse arm section 36 joined byarcuate arms transverse flanges outer flange 33 is sized to receive theouter rib 19 therethrough and theflanges rib 19 between 5 them. - A
keeper 40 moulded from a resilient polymer has a substantially penannular form havingparallel end faces axial slot 43 extends in the axial direction between the end faces 41, 42. Thekeeper 40 has coaxial, substantially cylindrical inner andouter faces tab 44 projects radially from theouter face 46 on one side of theslot 43. Anub 47 is formed on theradial face 41. Aligned with the inner end of thetab 44, aprojection 48 extends inwardly from thecylindrical face 45. - As shown in
FIG. 3 , aradiused edge 49 joins theprojection 48 to thecylindrical face 45, while theopposing edge 50 of theprojection 48, bounding 15 theslot 43, is relatively sharp. Likewise theopposing edges mouth 27 are relatively sharp. - To assemble the
hook fastener 10, theclosure 28 is inserted in theopening 23, sliding theneck 32 through theslot part 25 into themouth 27. Capturing ahelical compression spring 60 between theflange 34 andshaft part 29, the 20rib 19 is entered through the opening 35 into the space between theflanges outer flange 33 may then be deformed to permanently connect thebase portion 15 andring coupling 12, while allowing free relative rotation between them. Theslot 43 is opened to insert thekeeper 40 over theexternal face 20, between theabutment face 22 and thegrip 30. - The
spring 60 moves theclosure 28 to its closed position, urging theshaft 29 out of the opening into thegap 17 toward thehook portion 16. Thegrip 30 5 protrudes through themouth 27, but before the user can manipulate thegrip 30 to open theclosure 28 thekeeper 40 must be rotated to angularly aligned theslot 43 with the mouth 27 (as shown inFIG. 3 ) and in all other angular positions thekeeper 40 prevents axial movement of theclosure 28. - The
nub 47 provides a stop surface which abuts theneck 32, providing alimit 10 to rotation of thekeeper 40 in a first direction (as shown inFIG. 1 ). When thetab 44 is rotated in a second direction opposite the first direction generally into axial alignment with thegrip 30, theprojection 48 is urged into themouth 27. Further rotation of the keeper in the second direction is resisted by abutment between the relativelysharp edges radiused edge 49 abutting theedge 52. Theprojection 48 thus provides a stop or detent limiting rotation of thekeeper 40 in a second direction. Therefore, without needing to check visually, or to manually try the closure, the user can ensure that the closure is locked when thekeeper 40 is rotated in either direction to the end of its travel. - 20 A second embodiment of a
hook fastener 110 shown inFIGS. 4 and 5 includes abody 113,keeper 140 and D-shapedring coupling 112. Like numbers are used to refer to like components in both embodiments. This second embodiment differs from the first in that the axis ofrotation 14 of thebody 113 relative to the D-shapedring coupling 112 is acutely inclined to the axis 70 of thecylindrical part 24 and thecylindrical section 21, along which the closure reciprocates. Theaxis 14 bisects thetransverse arm section 36, passes 5 through the apex 71 of the concave face of thehook portion 16 and intersects with the axis 70 at approximately 15 degrees. Accordingly, the axes of thecylindrical section 21 andexternal face 20 are inclined to one another and theflange 18 is tapered. Thecylindrical section 21 forms a neck that extends between theinner flange 18 and ahead 72 in which thetransverse end face 10 26 is provided. Thehead 72 has the same outer diameter as the penannular part of thekeeper 140. Thepenannular face 73 formed by thebroader head 72 is parallel to theabutment face 22 and thekeeper 140 is located between thefaces - The
keeper 140 has like form to thekeeper 40 of the first embodiment, but 15 without thenub 47. The D-shapedring coupling 112 has like form to thering coupling 12 of the first embodiment, but without thetransverse flange 34. - The
hook fastener 110 further includes afastener 75 which is fixed in the end of thecylindrical part 24 of theopening 23 to bear against on end of thespring 60. - 20 The second embodiment works in like manner to the first but (in the absence of the nub 47) it is the
tab 44 that serves to limit rotation of thekeeper 140 about the axis 70 by abutting thehook part 16. - Aspects of the present invention have been described by way of example only and it should be appreciated that modifications and additions may be made thereto without departing from the scope thereof.
Claims (16)
1. A hook fastener comprising:
a body having a base portion and a hook portion extending from an end of the base portion to define a gap between the hook and the base portion;
an external face on the base portion;
a shoulder integral with the body to project from the external face and said shoulder defining an abutment;
an opening formed in the base portion, the opening having a keyhole shaped portion with an elongate mouth intersecting the external face;
a closure having a shaft part and a grip part, the shaft part received in the opening, the grip part protruding from the shaft part through the mouth for manipulation by a user;
a spring urging the closure such that the shaft part extends out of the opening into the gap, and
a keeper received to rotate upon the external face, the keeper having a substantially penannular form and being located between the abutment and grip part, a slot in the keeper extending parallel to the mouth, the keeper preventing the user retracting the closure from the gap, except when the slot is angularly aligned with the mouth and said keeper has a cylindrical inner surface and a cylindrical outer surface and a tab projecting from the outer surface for providing a handle and a projection angularly aligned with the tab and said projection selectively positionable in said mouth.
2. The hook fastener of claim 1 wherein the keeper is formed of resilient material and has an inner surface complementary to the external face of the base portion, and said projection extending radially inwardly of the inner surface, and said projection being configured for receipt in the mouth thereby providing a detent for locating the keeper in an angular position in which it prevents the user retracting the closure from the gap.
3. The hook fastener of claim 1 wherein the projection and mouth have first respective edges which substantially abut to restrict rotation of the keeper relative to the body in a first direction, and second respective edges which substantially abut to restrict relative rotation of the keeper in a second direction opposite the first direction, wherein at least one of the first and second edges is radiused or chamfered relative to the others of the first and second edges, and the keeper further includes a cylindrical outer surface and a tab aligned with one of said projections, the tab projecting from the outer surface for providing a handle
4. The hook fastener of claim 3 further including a D-shaped ring coupling connected to the body and a belt fastened to the ring coupling.
5. A hook fastener comprising:
a body having a base portion and a hook portion extending from an end of the base portion to define a gap between the hook and the base portion;
an external face on the base portion, the external face having a first axis;
a shoulder integral with the body to project from the external face, and said shoulder defining an abutment;
an opening formed in the base portion, the opening having a keyhole shaped portion with an elongate mouth intersecting the external face and a cylindrical part coaxial with the first axis;
a closure having a shaft part and a grip part, the shaft part received in the opening to reciprocate parallel to the first axis , the grip part protruding from the shaft part through the mouth for manipulation by a user;
a spring urging the closure such that the shaft part extends out of the opening into the gap;
a ring coupling secured to the body for rotation relative to the body about a second axis inclined acutely to the first axis, and
a keeper received to rotate upon the external face, the keeper having a substantially penannular form and being located between the abutment and grip part, a slot in the keeper extending parallel to the mouth, the keeper preventing the user retracting the closure from the gap, except when the slot is angularly aligned with the mouth and said keeper has a substantially penannular form with an inner surface cylindrical and a cylindrical outer surface and a tab projecting from the outer surface for providing a handle and a projection angularly aligned with the tab and said projection selectively positionable in said mouth.
6. The hook fastener of claim 5 wherein the hook portion has a concave face having an apex and the ring coupling includes a transverse arm portion transverse to, and bisected by, the second axis, and wherein the second axis passes through the apex of the concave face of the hook portion.
7. The hook fastener of claim 1 wherein the external face forms a narrow neck extending between a head part and a flange both integral with the body, the head part and the flange having respective opposing penannular faces between which the keeper is located.
8. The hook fastener of claim 15 further including a D-shaped ring coupling connected to the body and a belt fastened to the ring coupling.
9. A keeper, comprising, in combination:
a tubular body member having a substantially penannular form having a first end surface and a second end surface axially spaced from said first end surface, and said first end surface and said second end surface lie in radial planes, and said body member having a cylindrical outer surface and a cylindrical inner surface;
a slot in said body member having a first edge and a second edge, and said slot extending through said body member from said cylindrical outer surface to said cylindrical inner surface and from said first end surface to said second end surface;
a projection on said body member aligned with one of said first edge and said second edge of said slot, said projection extending radially inwardly from said cylindrical outer surface to regions radially inwardly from said cylindrical inner surface.
10. The arrangement defined in claim 9 wherein:
said projection extends from said first end surface to said second end surface of said body member.
11. The arrangement defined in claim 9 wherein:
said keeper is resilient.
12. The arrangement defined in claim 9 and further comprising:
a tab mounted on said cylindrical outer surface of said body member intermediate said first end surface and said second end surface and said tab extending radially outwardly from said cylindrical outer surface of said body member and said tab providing a handle.
13. The arrangement defined in claim 12 wherein:
said tab is angularly aligned with said projection.
14. The arrangement defined in claim 9 and further comprising:
a nub extending axially from said first end surface of said body member.
15. The arrangement defined in claim 12 and further comprising:
a nub extending axially from said first end surface of said body member.
15. The arrangement defined in claim 9 wherein:
said projection has a first projection inner edge and a second projection inner edge spaced circumferentially from said first projection inner edge, one of said first projection inner edge and said second projection inner edge is radiused.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/507,170 US20120311830A1 (en) | 2009-07-16 | 2012-06-11 | Hook fastener with spring closure |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/460,244 US8365365B2 (en) | 2009-07-16 | 2009-07-16 | Hook fastener with spring closure |
US13/507,170 US20120311830A1 (en) | 2009-07-16 | 2012-06-11 | Hook fastener with spring closure |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/460,244 Continuation US8365365B2 (en) | 2009-07-16 | 2009-07-16 | Hook fastener with spring closure |
Publications (1)
Publication Number | Publication Date |
---|---|
US20120311830A1 true US20120311830A1 (en) | 2012-12-13 |
Family
ID=43464229
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/460,244 Active 2030-10-25 US8365365B2 (en) | 2009-07-16 | 2009-07-16 | Hook fastener with spring closure |
US13/507,170 Abandoned US20120311830A1 (en) | 2009-07-16 | 2012-06-11 | Hook fastener with spring closure |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/460,244 Active 2030-10-25 US8365365B2 (en) | 2009-07-16 | 2009-07-16 | Hook fastener with spring closure |
Country Status (1)
Country | Link |
---|---|
US (2) | US8365365B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105472979A (en) * | 2013-08-09 | 2016-04-06 | 株式会社泰基 | Connector for animal |
US10274046B2 (en) * | 2015-05-01 | 2019-04-30 | Treemagineers Ltd. | Swivel assemblies |
CN112071523A (en) * | 2020-08-27 | 2020-12-11 | 俊郎电气有限公司 | Post insulator |
US11499587B1 (en) * | 2020-06-26 | 2022-11-15 | Blu Rock Enterprises LLC | Safety attachment for a bolt snap to prevent unintentional opening |
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US8925181B2 (en) | 2009-03-24 | 2015-01-06 | Travel Caddy, Inc. | Cut-proof anti-theft bag construction |
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JP5755990B2 (en) * | 2011-10-06 | 2015-07-29 | ドギーマンハヤシ株式会社 | Connector |
WO2014054071A1 (en) * | 2012-10-03 | 2014-04-10 | 株式会社ターキー | Coupler for use with animals |
US9366043B2 (en) | 2014-05-28 | 2016-06-14 | Mrm Hk Limited | Safety tether for a hand-held article |
MX2014007736A (en) * | 2014-06-23 | 2015-12-23 | Manuel Zavala Riva Palacio | Snap hook with spring. |
AU2016206772B2 (en) | 2015-01-17 | 2020-09-03 | Travel Caddy, Inc. | Multi-glide locking snap hook fastener |
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US11596214B2 (en) | 2017-07-12 | 2023-03-07 | Ilesovi Inc. | Purse with security and safety features |
US11725690B2 (en) * | 2019-03-27 | 2023-08-15 | Mrm Hk Limited | Tethered fastener |
US20230175546A1 (en) * | 2020-05-14 | 2023-06-08 | Mrm Hk Limited | Fastener |
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US4372016A (en) * | 1980-07-03 | 1983-02-08 | Gulf & Western Manufacturing Company | Hardware snap and method of producing same |
GB8526512D0 (en) * | 1985-10-28 | 1985-12-04 | Foy P S | Harness plate |
US7526843B2 (en) * | 2006-06-27 | 2009-05-05 | Kuan-Yu Lin | Snap hook |
-
2009
- 2009-07-16 US US12/460,244 patent/US8365365B2/en active Active
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- 2012-06-11 US US13/507,170 patent/US20120311830A1/en not_active Abandoned
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US573491A (en) * | 1896-12-22 | Pipe-patch | ||
US1671226A (en) * | 1925-10-02 | 1928-05-29 | Lionel Corp | Lamp socket |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105472979A (en) * | 2013-08-09 | 2016-04-06 | 株式会社泰基 | Connector for animal |
EP3020272A4 (en) * | 2013-08-09 | 2017-01-25 | Tarky Co. Ltd. | Connector for animal |
US10058075B2 (en) | 2013-08-09 | 2018-08-28 | Earth Pet Co., Ltd. | Connector for animal |
US10274046B2 (en) * | 2015-05-01 | 2019-04-30 | Treemagineers Ltd. | Swivel assemblies |
US11499587B1 (en) * | 2020-06-26 | 2022-11-15 | Blu Rock Enterprises LLC | Safety attachment for a bolt snap to prevent unintentional opening |
CN112071523A (en) * | 2020-08-27 | 2020-12-11 | 俊郎电气有限公司 | Post insulator |
Also Published As
Publication number | Publication date |
---|---|
US20110010896A1 (en) | 2011-01-20 |
US8365365B2 (en) | 2013-02-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |