Cinching with touch fastening straps
A cinching device includes: a buckle including a frame defining an opening; an elongate flexible strap coupled to one portion of the frame and extending away from the frame to a freestanding distal tongue receivable by the opening of the frame, the strap including a first face carrying a plurality of loop-engageable discrete fastening elements and an opposing second face carrying a loop material; and a tab coupled to another portion of the frame, the tab including an exposed touch fastening face engageable with at least one of: the plurality of fastening elements of the first face of the strap or the loop material of the second face of the strap.
1. A cinching device comprising:
a buckle comprising a frame defining an opening;
an elongate flexible strap coupled to one portion of the frame and extending away from the frame to a freestanding tongue receivable by the opening of the frame, the strap comprising a first face carrying a plurality of loop-engageable discrete fastening elements and an opposing second face carrying a loop material, the plurality of fastening elements disposed in an array spanning a length between a proximal region of the strap coupled to the frame and a distal region of the strap including the tongue, and a significant majority of the plurality of fastening elements extending unidirectionally to overhang the first face of the strap; and
a tab coupled to another portion of the frame, the tab including an exposed touch fastening face engageable with at least one of: the plurality of fastening elements of the first face of the strap or the loop material of the second face of the strap,
wherein the significant majority of the plurality of fastening elements is configured to interface with the touch fastening face of the tab within the opening of the frame, such that movement of the strap through the opening in a tightening direction is permitted and movement of the strap through the opening in a loosening direction is inhibited by engagement of the significant majority of fastening elements with the touch fastening face of the tab.
2. The cinching device of claim 1 , wherein the array of fastening elements extends across a limited width portion of the first face of the strap.
3. The cinching device of claim 1 , wherein the tab and flexible strap are permanently attached to the frame of the buckle.
4. The cinching device of claim 1 , wherein each of the plurality of fastening elements comprises an upstanding stem rising from the first face of the strap and a head protruding integrally from a distal end of the stem to a tip, and wherein the plurality of fastening elements and the strap comprise a molded contiguous mass of solidified resin.
5. The cinching device of claim 1 , wherein the touch fastening face of the tab comprises at least one of:
a loop material engageable with the fastening elements of the first face of the strap; or
a plurality of fastening elements engageable with the loop material of the second face of the strap.
6. The cinching device of claim 5 , wherein substantially all of the fastening elements of the tab extend unidirectionally to overhang the touch fastening face.
7. The cinching device of claim 1 , wherein the tab comprises a rigid body extending integrally from the frame.
8. The cinching device of claim 1 , wherein at least one of the tab or the strap carries an elongated strip of resinous grip material.
9. The cinching device of claim 1 , wherein the flexible strap is a primary strap, and wherein the cinching device further comprises an auxiliary fastening strap attached to the primary strap to overlap the first face of the primary strap, the auxiliary fastening strap comprising opposing touch fastening faces, at least one of which carrying a loop material engageable with the plurality of fastening elements of the first face.
10. The cinching device of claim 1 , further comprising an elastically stretchable band securing the strap to the frame of the buckle.
11. The cinching device of claim 1 , wherein the touch fastening face of the tab overlaps a portion of the strap when the tongue of the strap is received by the opening of the frame.
12. A cinching device comprising:
a buckle comprising a frame defining an opening;
an elongate flexible strap coupled to one portion of the frame and extending away from the frame to a freestanding tongue receivable by the opening of the frame, the strap comprising a first face carrying a plurality of loop-engageable discrete fastening elements and an opposing second face carrying a loop material, the plurality of fastening elements disposed in an array spanning a length between a proximal region of the strap coupled to the frame and a distal region of the strap including the tongue; and
a tab coupled to another portion of the frame, the tab including an exposed touch fastening face engageable with at least one of: the plurality of fastening elements of the first face of the strap or the loop material of the second face of the strap,
wherein the touch fastening face of the tab overlaps a portion of the strap when the tongue of the strap is received by the opening of the frame, and
wherein the plurality of fastening elements is configured to interface with the touch fastening face of the tab within the opening of the frame, such that movement of the strap through the opening in a tightening direction is permitted and movement of the strap through the opening in a loosening direction is inhibited by engagement of the plurality of fastening elements with the touch fastening face of the tab.
13. The cinching device of claim 12 , wherein the tab and flexible strap are permanently attached to the frame of the buckle.
14. The cinching device of claim 12 , wherein each of the plurality of fastening elements comprises an upstanding stem rising from the first face of the strap and a head protruding integrally from a distal end of the stem to a tip, and wherein the plurality of fastening elements and the strap comprise a molded contiguous mass of solidified resin.
15. The cinching device of claim 12 , wherein the touch fastening face of the tab comprises at least one of:
a loop material engageable with the fastening elements of the first face of the strap; or a plurality of fastening elements engageable with the loop material of the second face of the strap.
16. The cinching device of claim 15 , wherein substantially all of the fastening elements of the tab extend unidirectionally to overhang the touch fastening face.
17. The cinching device of claim 12 , wherein the tab comprises a rigid body extending integrally from the frame.
18. The cinching device of claim 12 , wherein at least one of the tab or the strap carries an elongated strip of resinous grip material.
19. The cinching device of claim 12 , wherein the flexible strap is a primary strap, and wherein the cinching device further comprises an auxiliary fastening strap attached to the primary strap to overlap the first face of the primary strap, the auxiliary fastening strap comprising opposing touch fastening faces, at least one of which carrying a loop material engageable with the plurality of fastening elements of the first face.
20. The cinching device of claim 12 , further comprising an elastically stretchable band securing the strap to the frame of the buckle.
21. A cinching device comprising:
a buckle comprising a frame defining an opening;
an elongate flexible strap coupled to one portion of the frame and extending away from the frame to a freestanding tongue receivable by the opening of the frame, the strap comprising a first face carrying a plurality of loop-engageable discrete fastening elements and an opposing second face carrying a loop material, the plurality of fastening elements disposed in an array spanning a length between a proximal region of the strap coupled to the frame and a distal region of the strap including the tongue; and
a tab coupled to another portion of the frame, the tab including an exposed touch fastening face engageable with at least one of: the plurality of fastening elements of the first face of the strap or the loop material of the second face of the strap,
wherein engagement of the tab with the strap defines a shear plane parallel to the touch fastening face of the tab, the shear strength of the engagement being greater in one longitudinal direction along the shear plane than in an opposite longitudinal direction, and
wherein the plurality of fastening elements is configured to interface with the touch fastening face of the tab within the opening of the frame, such that movement of the strap through the opening in a tightening direction is permitted and movement of the strap through the opening in a loosening direction is inhibited by engagement of the plurality of fastening elements with the touch fastening face of the tab.