An improved structure of boneless wiper end

Abstract

The invention discloses an improved structure at the end of a boneless wiper, which includes a wiper rubber strip, an elastic support part and an end buckle. It is composed of two elastic steel sheets, and a gap is reserved between the two elastic steel sheets for the wiper rubber strip to pass through. The ends of the two elastic steel sheets are welded with a connecting piece, and the outer edge of the connecting piece is connected to the outer edge of the elastic steel sheet. A gap is reserved for the passage of the end buckle, and a positioning buckle groove is formed on the outside of the elastic steel sheet at a predetermined position; the inner and outer ends of the end buckle are respectively an open end and a closed end, and the bottom of the end buckle is provided with The opening of the cavity has two positioning steps extending from the opening of the cavity, and the inner wall of the cavity is provided with a depression matching the width of the above-mentioned clearance gap above the positioning step, and a positioning card platform is provided in the depression. When the end buckle is installed in place, the The positioning card platform is fastened in the positioning buckle groove of the elastic steel sheet.

Description

technical field [0001] The invention relates to a windshield wiper, in particular to a boneless wiper end structure. Background technique [0002] Such as figure 1 , 2 As shown, the brush rod of the boneless wiper is mainly composed of a wiper rubber strip, a connecting seat, an elastic support part 1' and end buckles 2' on both sides. It is put on the elastic supporting part, and the two ends are fixed by end buckles. In the traditional structure, the elastic supporting part is composed of two elastic steel sheets, a gap 11' is reserved between the two elastic steel sheets for the wiper rubber strip to pass through, and the ends of the two elastic steel sheets are welded to a connecting piece 12' for fixing. In order to stabilize the gap 11', a relief part 13' must be reserved between the connecting piece 12' and the elastic supporting part for the passage of the wiper rubber strip. An elastic clamping block 21' is formed on the inner side of the end buckle. When install...

AI Technical Summary

Problems solved by technology

In the traditional structure, the elastic supporting part is composed of two elastic steel sheets, a gap 11' is reserved between the two elastic steel sheets for the wiper rubber strip to pass through, and the ends of the two elastic steel sheets are welded to a connecting piece 12' for fixing. In order to stabilize the gap 11', a relief part 13' must be reserved between the connecting piece 12' and the elastic supporting part for the passage of the wiper rubber strip. An elastic clamping block 21' is formed on the inner side of the end buckle. When installed in place The elastic clamping block 21' is fastened on the inner side wall of the connecting piece 12', because the position of the connecting piece 12' tends to deviate during the welding process, such as the verticality cannot be satisfied between the connecting piece 12' and the elastic supporting part 1' , there will be a skew, or the verticality is satisfied, but the connecting piece 12' will tilt to the left or right along the direction of the elastic support component, which will eventually cause the elastic clamping block 21' to be unable to be tightly buckled with the inner wall of the connecting piece At the same time, since the connecting piece 12' is welded on the elastic supporting part 1' and is completely covered, the height of the chute 22' on both sides of the end buckle 2' needs to be the same as the superposition height of the connecting part 12' and the elastic supporting part 1' However, in actual processing, due to the problem of machining accuracy, the height of the superposition of the two components does not match the height of the chute on both sides of the end buckle, and the gap is large and shakes, or it is completely consistent, but because the end buckle 2' and the The joint area of ​​the connecting piece 12' is small, and after a certain period of use, the elastic supporting parts are easy to wear and shake. The present invention aims to improve the lack of coordination of this structure

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