US 2023/0320440 A1 · SEALING STRIP, RESPIRATOR, AND METHOD FOR MANUFACTURING SEALING STRIP

Abstract

The present invention relates to a sealing strip, a respirator, and a method for manufacturing a sealing strip. The sealing strip includes a main body part, the main body part having an upper surface, a lower surface, a first side surface, and a second side surface opposite to the first side surface. The main body part includes a curved surface part. The curved surface part includes a first convex part and a second convex part, and the first convex part and the second convex part are connected to each other in the lengthwise direction of the sealing strip to define a concave part located therebetween. The concave part is configured to accommodate the nose of a wearer. The first convex part and the second convex part are symmetrical about the concave part. A first side surface of the curved surface part is a sinusoidal curved surface with a constant amplitude extending in the lengthwise direction of the sealing strip. By the sealing strip, the respirator and the method for manufacturing a sealing strip according to the present invention, a manufacturing process of the sealing strip can be simplified; a maximum utilization rate of materials can be achieved; sealing between the respirator and the face of the wearer can be improved, and the wearing comfort of the respirator can be increased.

Claims19

Dependent claims

A sealing strip for a respirator, the sealing strip comprising:

a main body part, the main body part having an upper surface, a lower surface, a first side surface, and a second side surface opposite to the first side surface, wherein
the second side surface is to be attached to a respirator main body of the respirator so that the first side surface faces a wearer, and the sealing strip covers at least a part of a peripheral edge of the respirator main body to be in contact with the face of the wearer, wherein
the main body part comprises a curved surface part;
the curved surface part comprises a first convex part and a second convex part;
the first convex part and the second convex part are connected to each other in the lengthwise direction of the sealing strip to define a concave part located between the first convex part and the second convex part;
the concave part is configured to accommodate the nose of the wearer;
the first convex part and the second convex part are symmetrical about the concave part, and a first side surface of the curved surface part is a sinusoidal curved surface with a constant amplitude extending in the lengthwise direction of the sealing strip.

4 more elements

A method for manufacturing a sealing strip, comprising:

providing a first material piece;
and
cutting the first material piece to prepare a main body part of the sealing strip, the main body part having an upper surface, a lower surface, a first side surface, and a second side surface opposite to the first side surface, wherein the second side surface is to be attached to a respirator main body of a respirator so that the first side surface faces a wearer, and the sealing strip covers at least a part of a peripheral edge of the respirator main body to be in contact with the face of the wearer, wherein
the main body part is cut to have a curved surface part;
the curved surface part comprises a first convex part and a second convex part;
the first convex part and the second convex part are connected to each other in the lengthwise direction of the sealing strip to define a concave part located between the first convex part and the second convex part;
the concave part is configured to accommodate the nose of the wearer;
the first convex part and the second convex part are symmetrical about the concave part, and a first side surface of the curved surface part is a sinusoidal curved surface with a constant amplitude extending in the lengthwise direction of the sealing strip.

5 more elements

Dependencies are inferred from the claim text.

Sealing strip, respirator, and method for manufacturing sealing strip

Life of this patent

Sealing strip, respirator, and method for manufacturing sealing strip

Life of this patent

Abstract

Claims19