SU1595715A1 - Arrangement for connecting blade with windscreen wiper arm - Google Patents

Abstract

This invention relates to the automotive industry. The purpose of the invention is to improve ease of use in operation. The invention allows for the replacement of a wiper blade on a car with one hand in the event that the end of the wiper arm is equipped with a hook. The device is made in the form of a U-shaped bracket 2 with a socket 4 for the axis of the brush in the place of its bending. At the end of the side of the bracket facing the surface to be cleaned, there is a latch 5 in the form of a cavity open in the direction of insertion of the free end of the lever. The cavity is formed by a base 7 in the form of an end portion of the side of the bracket, two walls 8, extending from the base at equal angles, and a membrane 9 with a fixing protrusion 6 on it facing the inside of the cavity. The extension of the fixation walls from the line of their connection with the membrane is the pressure elements 13. 2 Il.

Description

The invention relates to the automotive industry. The purpose of the invention is to improve the usability in operation. EFFECT: invention allows changing wiper blade.

2

on the car with one hand, if the end of the wiper arm is hooked. The device is made in the form of an u-shaped bracket 2 with a nest 4 for the axis of the brush in the place of its bending. At the end of the side of the bracket facing the surface to be cleaned, there is a latch 5 in the form of a cavity open in the direction of insertion of the free end of the lever. The cavity is formed by the base 7 in the form of an end portion of the side of the bracket, two walls 8 extending from the base at equal angles, and a membrane 9 with a fixing protrusion 6 on it facing the inside of the cavity. The continuation of st, the lock clamp from the line of their connection with the membrane are pressure elements 13. 2 Il.

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four

1595715

The invention relates to the automotive industry, in particular to devices for connecting the brush to the wiper arm, mainly for a passenger car.

'The purpose of the invention is to improve ease of use in operation.

Figure 1 schematically shows the proposed device for connecting a brush with a wiper lever. la FIG. 2 is the same, assembled with a brush and a wiper arm.

The device 1 for connecting the brush e with the wiper lever is made in the form of an elastic and - shaped bracket 2 with sides 3 on the long parallel edges of the outer surface and slot 4 on the inner surface in place of its bend. The device also contains a latch 5 with a protrusion 6. The latch 5 is made on the conical portion of the side of the bracket 2, open from two opposite sides. The cavity is bounded by the end section of the base 7, two equal rectangular walls 8, diverging from the base at equal angles, and a membrane 9 connecting the opposite sides of the walls 8 adjacent to the base 7. The membrane 9 is curved relative to the cavity to the outside.

The protrusion 6 is made on the membrane 9 at an equal distance from the walls 8 of the retainer 5 and facing the inside of the cavity. The protrusion 6 is divided into equal parts 10 by a groove 11, made in the direction perpendicular to the open parallel edges of the membrane 9. Between the walls of the latch 5 and the sides 3 there is a technological gap 12. The latch 5 is provided with pressure elements 13, made · in the continuation of the walls 8 from the line their compounds with the membrane 9.

The connection of the brush 14 with the lever 15 of the wiper using the proposed device is carried out sequentially in two stages.

First, the device 1 is assembled with a brush 14. To do this, with one hand, the device is pushed up with the inside of the bracket. full: landing nests 4, made on it, on the axis of the brush 16. Then the assembled unit is connected with the lever 15 of the wiper. To do this, intercepting the assembled assembly with the same hand by the side walls of the brush 14, move it until the outer surface of the bracket 2 fits to the inner surface of the hook end 17 of the lever 15. Bracket 2 for elasticity is performed with the bend radius of the outer surface larger than the bend radius the inner surface of the hook end 17 of the lever 15, so it is compressed, and more than 4 tightly covers the axis of the brush

16 of the wiper, and the free end 18 of the lever 15 enters the cavity of the retainer 5, presses the protrusion 6 and retracts it with the membrane 9 in the direction of the surface 19 to be cleaned, and the free ends 20 of the parts 10 are high. · The blunt 6 converge one to the other. When the hole 21 on the free end 18 of the lever 15 coincides with the protrusion 6 on the membrane 9, the protrusion under the action of the retainer membrane enters the hole 21. The parts 10 of the protrusion 6, diverging one relative to the other, fix the wiper blade 14 from the longitudinal movement on the hook end

17 of the pinch 15 due to the abutment of the walls 22 of the protrusion 6 into the walls 23 of the hole at the free end 18 of the lever 15 and from

transverse movement due to the transverse expansion of the parts 10 of the protrusion 6 in the same hole.

To remove the wiper blade from the lever, you need to squeeze the pressure elements 13 against one another with the thumb and index fingers of one hand. As a result, the membrane 9 deforms towards the surface 19 to be cleaned, the free ends 20 'of the protrusion parts converge, the protrusion 6 leaves the hole 21 Then, holding the pressing elements 13 with the same fingers, withdraw the device 1 with the brush 14 from engagement with the hook end 17 of the lever 15 in the direction opposite to the direction of its insertion.

The shape of the protrusion 6 on the retainer membrane 9 depends on the shape of the hole 21 on the free end of the wiper blade. In the above example, the shape of the protrusion on the retainer membrane has the shape of a trapezoid, since the hole with which the protrusion interacts is rectangular in shape. The device for connecting the brush to the wiper arm is made of plastic, it is full, therefore, in the place of bend is ϋ-ob-. different brackets for ease of casting performed technological hole- “m. Section 24.

1595715

Claims (1)

Claims of the invention "· Device for connecting a brush with a wiper arm, made in the form of an 11-shaped clevis with a socket for the brush axis in the bent part of the inner surface, with sides along the long parallel edges of the outer surface, at the end of which a retainer with pressure element and protrusion is made, interacting with an opening on the free the end of the lever, characterized in that, in order to improve ease of use in operation, the latch is ·, complete in the form - open from two sides two flat rectangular equal £ ^- GOVERNMENTAL walls, one sides adjacent to the parallel edges of the base and extending outwardly therefrom at equal angles, and an arcuate, convex IE cavity, the membrane connecting the inner sides of both walls, the pressing member is formed by a continuation of said walls the lines connecting the latter with the membrane, and the protrusion of the retainer is made on the membrane surface at an equal distance from the walls; 5 into the cavity and is divided into equal parts by a groove oriented in the