Mask strap adjuster
AssigneeWater Square Sports Co., Ltd.
InventorChen-Lieh Pan
Life of this patent
Estimating the term…
Abstract
A mask strap adjuster attaches a strap with right triangular ribs to a mask, allows the strap to be tightened by pulling the strap and comprises a base, a cover and a connector. The base has two corresponding moveable caps. Each cap has two nubs. The cover is mounted on the base and has a pawl and two nubs. The pawl engages the ribs on the strap to allow the strap to be tightened by simply pulling the strap. The nubs of the cover are pressed selectively by the nubs on the caps and press the cover away from the base and the pawl away from the ribs to loosen the strap. The cover and the base can be short.
Claims8
A mask strap adjuster comprises
- a base (10) having
- a proximal end;
- a distal end;
- a top side;
- a bottom side;
- an outer surface;
- two cap recesses (11) formed respectively in the top and bottom sides of the base near the distal end of the base and corresponding to each other, and each recess having
- a bottom;
- and
- two notches (111) formed in the base through the bottom of the recess and corresponding to each other;
- a stationary shaft (12) mounted between the two cap recesses (11) in the base;
- two caps (14) slidably mounted respectively in the cap recesses (11), and each cap (14) having
- a bottom;
- and
- two nubs (141) formed at the bottom of the cap (14) and extending into the notches (111) in a corresponding one of the cap recesses (11);
- two springs (19) mounted respectively in the cap recesses (11) between the caps (14) and the bottoms of the cap recesses (11);
- a cover recess (16) formed in the outer surface of the base (10);
- a cover (20) mounted in the cover recess (16) in the base and having
- an inner surface;
- a top edge;
- a bottom edge;
- a proximal end;
- a pawl (22) formed on the inner surface of the cover near the distal end of the cover (20);
- and
- two nubs (23) formed on the inner surface of the cover (20) respectively at the top and bottom edges of the cover (20), corresponding to each other and selectively abutting the nubs (141) on the cap (14).
Dependencies are inferred from the claim text.