End part improving structure of boneless windshield wiper

Abstract

The invention discloses an end part improving structure of a boneless windshield wiper, comprising a windshield wiper rubber strip, an elastic supporting part and an end buckle; the windshield wiper rubber strip is sleeved on the elastic supporting part, and both ends are fixed through the end buckle; the elastic supporting part consists of two elastic steel pieces, and a gap for making the windshield wiper rubber strip cross through is reserved between two elastic steel pieces; end parts of the two elastic steel pieces are welded with a connecting piece, and the middle part of the connecting piece is upwards raised to form a leaving space for making the windshield wiper rubber strip cross through; a leaving gap for making the end buckle pass through is reserved between the outside of the connecting piece and the outside edge of the elastic steel piece, and the outside of the elastic steel piece on a predetermined position is further shaped with a positioning buckle groove; inner and outer ends of the end buckle are an opening end and a sealing end; the bottom part of the end buckle is provided with a holding cavity for the opening, and two positioning steps are extended at the opening of the holding cavity; the upper parts of the positioning buckle are provided with concaves matched with the width of the leaving space, and positioning buckle platforms are arranged in the sunken; when the end buckle is installed in place, the positioning buckle platforms are buckled in the positioning buckle grooves of the elastic steel piece.

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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