Abstract: A side release buckle includes a female buckle member, which has a front opening, two sloping sidewalls, two side holes respectively cut through the sloping sidewalls, and two retaining blocks respectively extended from the sloping sidewalls inside the female buckle member, and a male buckle member, which has two spring arms respectively insertable into the side holes of the female buckle member and a retaining groove on a free end of each spring arm, a springy brace connected between the two spring arms for forcing the retaining grooves into engagement with the retaining blocks after insertion of the spring arms into the side holes of the female buckle member, and a guide portion insertable into the front opening of the female buckle member to guide movement of the spring arms smoothly in the female buckle member.

Abstract: A side release buckle includes a female buckle member, which has a front opening, two sloping sidewalls, two side holes respectively cut through the sloping sidewalls, and two retaining blocks respectively extended from the sloping sidewalls inside the female buckle member, and a male buckle member, which has two spring arms respectively insertable into the side holes of the female buckle member and a retaining groove on a free end of each spring arm, a springy brace connected between the two spring arms for forcing the retaining grooves into engagement with the retaining blocks after insertion of the spring arms into the side holes of the female buckle member, and a guide portion insertable into the front opening of the female buckle member to guide movement of the spring arms smoothly in the female buckle member.

Abstract: A fine adjustable sliding buckle is described. The fine sliding adjustable buckle has a base having two pairs of axial holes respectively for axially fitting the axles of the releasing plate and fine adjustment handle. The axles positioned on the two sides of the fine adjustment handle and the releasing plate are fitted in the axial holes on the same side of the base, and the handling portion of the fine adjustment handle has a receiving hole for receiving the releasing plate. Thus the fine adjustment handle and the releasing plate are positioned along the same direction and are positioned almost on the same plane to prevent accidental touch which would otherwise accidentally release the releasing plate from the base to loosen the adjustment belt. Thus, the fine adjustable sliding buckle of the present invention is easy to operate, safe and compact.

Abstract: A fine adjustable sliding buckle is described. The fine sliding adjustable buckle has a base having two pairs of axial holes respectively for axially fitting the axles of the releasing plate and fine adjustment handle. The axles positioned on the two sides of the fine adjustment handle and the releasing plate are fitted in the axial holes on the same side of the base, and the handling portion of the fine adjustment handle has a receiving hole for receiving the releasing plate. Thus the fine adjustment handle and the releasing plate are positioned along the same direction and are positioned almost on the same plane to prevent accidental touch which would otherwise accidentally release the releasing plate from the base to loosen the adjustment belt. Thus, the fine adjustable sliding buckle of the present invention is easy to operate, safe and compact.