BLADE-MOUNTABLE WINDSHIELD WIPER SPRAY DEVICE

Abstract

A blade-mountable windshield wiper spray device including a body formed by a first upper member, arranged in use distant from the blade and a second lower member, arranged in use in contact with the support part of the blade; the first member integrally in one piece carries a plurality of fluid-dynamic sprayers and snapping fastening means to the blade so that the second member is sandwiched in use between the first member and the blade, closing respective internal cup-shaped cavities open towards the second member of the first member; the first and the second members reciprocally and fluid-tightly couple so that the second member defines along with the internal cavities of the first member respective feeding chambers of the sprayers.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

Further features and advantages of the present invention will be apparent in the following description of a non-limitative embodiment thereof, with reference to the accompanying drawings, in which:

FIG. 1 is a perspective three-quarters front view of a spray device for a windshield mountable on the windshield wiper itself, made according to the present invention;

FIG. 2 shows an elevation front view of the windshield device in FIG. 1, mounted in the operative working position;

FIGS. 3 and 4 show respective views taken along planes having tracks III-III and IV-IV respectively of the windshield spray device in FIG. 2; and

FIG. 5 shows an example of application of the invention on vehicle.

Claims

1. A blade-mountable windshield wiper spray device, comprising an internal hollow body carrying a plurality of nozzles integrally in one piece thereof, a feeding nipple of a washing fluid to the sprayers and fastening means of the body to a support part of the blade; characterised in that said body is formed by a first upper member, arranged in use distant from the blade and a second lower member, arranged in use in contact with the support part of the blade; the first member carrying said sprayers and said fastening means on the support part of the blade in such a manner that the second member is sandwiched in use between the first member and the blade, closing respective internal cavities of the first cup-shaped member open towards the second member; the first and the second members reciprocally and fluid-tightly couple so that the second member defines along with said internal cavities of the first member respective feeding chambers of said sprayers.

2. A device according to claim 1, characterised in that said sprayers are fluid-dynamic sprayers.

3. A device according to claim 2, characterised in that said fluid-dynamic nozzles each comprise a first and a second said feeding chambers, the first chamber being in hydraulic communication with said feeding nipple of the washing fluid and the second chamber being provided with a nozzle defined by a calibrated slot made through the first member and arranged essentially parallel to the blade plane.

4. A device according to claim 3, characterised in that the first and the second chambers hydraulically communicate with each other through a first passage delimited by a lower edge of a dividing partition between the first and the second chambers and the second member of the body.

5. A device according to claim 4, characterised in that said passage, and nozzle defined by said slot are arranged at opposite ends of the second chamber; said partition being integrally in one piece made with the first member of the body and overhangingly protruding towards the second member of the body.

6. A device according to claim 5, characterised in that said second member of the body is shaped as a closing cap of the first element of the body, which is shaped as a self-bearing essentially prismatic monolithic member having its larger dimension oriented in use in direction of the length of the blade and delimiting therewithin and at its lower face, facing in use towards the blade, said cup-shaped cavities and respective hydraulic connection passages between said cavities and said feeding nipple.

7. A device according to claim 6, characterised in that said chambers present an essentially cylindrical symmetry and are arranged with their axis perpendicularly oriented to said lower face of said first member of the body; said passage between the first and the second chambers of each sprayer being arranged at a lower end of the second chamber, immediately next to said second member of the body, and said nozzle defined by said slot being flushed with a blind upper end of the second chamber, arranged distant from the second member of the body.

8. A device according to claim 7, characterised in that said first member of the body is provided on an external side surface thereof and at said slots defining the nozzles of the sprayers, which are all aligned on a same plane, of respective recesses shaped so as to aerodynamically shield in use the jets of a washing fluid produced by said sprayers.

9. A device according to claim 1, characterised in that said nipple is overhangingly protruding externally on said first member of the body, at its longitudinal end intended in use to be arranged near a base end of the blade.

10. A device according to claim 1, characterised in that said means fastening the body to a support part of the blade are snappingly mounting means.