HOUSING OF WELDER'S HELMET Russian patent published in 2008 - IPC B23K9/32 B23K37/00 A61F9/06 

FIELD: welding engineering.

SUBSTANCE: housing is made of a chute-like member and comprises front, side, top, and bottom walls. The walls forms a housing opened from the back side provided with closed back edge. The intermediate part of the front wall is provided with a window defined by the frame projecting outward and having a means for locking the glass in the window. The sides are inclined at an angle of 35-45° one with respect to the other . The top and bottom walls are inclined to the front wall at an angle of 30-45°. The intermediate part of the front wall is provided with a hollow formed by the top, side, and bottom chamferings arranged around the frame. The top chamfering is inclined to the top wall at an angle of 90-110°, and the bottom chamfering is inclined to the bottom wall at an angle of 90-130°. Each side chamfering is composed of bottom side and top side chamferings. The angle between the plane of the front wall and the plane of the bottom side chamfering is equal to 35-45°. The angle between the top side chamfering and bottom side chamfering is equal to 110-130°, and the angle between the top side chamfering and top chamfering is equal to 100-130°.

EFFECT: improved design.

2 cl, 4 dwg