Device for a hose fitting

Abstract

A device for a hose fitting having at least one cartridge housing with a first connecting piece or a spray plate with a second connecting piece and a hose, which can be connected at least to the first connecting piece or the second connecting piece, whereby further a clamping sleeve is provided, which clamps an end region of the hose on the outside at least to the first connecting piece or the second connecting piece and with an inward directed collar encompasses a projection of the first connecting piece or of the second connecting piece. A non-metallic, inseparable snap connection is formed with two clamping sleeves toward the cartridge housing and toward the spray plate.

Claims

1. A water cartridge housing assembly, comprising: at least one cartridge housing with a first connecting piece or a spray plate with a second connecting piece and a hose, which is connected at least to the first connecting piece or the second connecting piece; a clamping sleeve, which clamps an end region of the hose on an outside at least to the first connecting piece or the second connecting piece; and the clamping sleeve having an inward directed collar that encompasses a projection of the first connecting piece or of the second connecting piece, wherein press rings are formed to project from a same, level internal surface of the clamping sleeve to press the hose against the first connecting piece or the second connecting piece, and wherein, in a fully assembled state of the clamping sleeve on the first connecting piece or on the second connecting piece, the radially inward-most extent of the press ring farthest removed from the inward directed collar is substantially axially aligned with a distal end of the first connecting piece or the second connecting piece in a radial direction and projects radially inward to a greater extent than all other press rings projecting from the internal surface of the clamping sleeve.

2. The water cartridge housing assembly according to claim 1, wherein the collar and the projection form a snap connection.

3. The water cartridge housing assembly according to claim 1, wherein the clamping sleeve and at least the first connecting piece or the second connecting piece form an inseparable connection.

4. The water cartridge housing assembly according to claim 1, wherein the inward directed collar is provided with a plurality of slots along a circumference thereof.

5. The water cartridge housing assembly according to claim 1, wherein a distal end of the hose abuts against a side surface of the projection of the first connecting piece or the second connecting piece.

6. The water cartridge housing assembly according to claim 1, wherein a water cartridge is provided inside of the at least one cartridge housing.

7. The water cartridge housing assembly according to claim 1, wherein each of the press rings are separated from one another in an axial direction of the clamping sleeve by portions of the same, level internal surface of the clamping sleeve.

8. A device for a hose fitting comprising: at least one cartridge housing with a first connecting piece or a spray plate with a second connecting piece; a hose connected at least to the first connecting piece or the second connecting piece; a clamping sleeve, which clamps an end region of the hose to an outside of the first connecting piece or the second connecting piece, wherein the clamping sleeve has an inward directed collar that encompasses a projection of the first connecting piece or a projection of the second connecting piece, wherein the clamping sleeve has press rings that are formed to project from a same, level internal surface of the clamping sleeve to press the hose against the first connecting piece or the second connecting piece, and wherein, in a fully assembled state of the clamping sleeve on the first connecting piece or on the second connecting piece, the radially inward-most extent of the press ring farthest removed from the inward directed collar is substantially axially aligned with an opening of the first connecting piece or the second connecting piece in a radial direction and projects radially inward to a greater extent than all other press rings of the clamping ring.

9. The device according to claim 8, wherein each of the press rings are separated from one another in an axial direction of the clamping sleeve by portions of the same, level internal surface of the clamping sleeve.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The present invention will become more fully understood from the detailed description given hereinbelow and the accompanying drawings which are given by way of illustration only, and thus, are not limitive of the present invention, and wherein:

(2) FIG. 1 is a perspective illustration of an exemplary embodiment of a device of a hose fitting; and

(3) FIG. 2 is a cross-sectional view of the connecting region between the hose and cartridge housing of FIG. 1.

DETAILED DESCRIPTION

(4) FIG. 1 shows schematically and in a partially perspective illustration a device 1 for a hose fitting 2. Cartridge housing 3, in which cartridge 16 (indicated by dashed lines) for water preparation is placed, is shown on the left in FIG. 1. Water flows out of this cartridge housing 3 over the indicated first connecting piece 4 and hose 7 into second connecting piece 6 of the so-called spray plate 5. There, the water flows out in a desired spray pattern. It is pointed out as a precaution that the spray pattern itself is not the issue here. It is evident further from FIG. 1 that hose 7 at both end regions is fastened with a clamping sleeve 8 to the adjacent parts. These are oriented here in the opposite direction, so that in each case a first end section of the clamping sleeve is oriented toward the hose and a second end section of the clamping sleeve toward the adjacent part.

(5) FIG. 2 shows a cross-sectional view of the connection between hose 7 and cartridge housing 3. The connection can and should also be made preferably similarly to the spray plate.

(6) Shown is the first connecting piece 4, which forms a water conduit 15, whereby water can flow in along axis 14 from first connecting piece 4 into hose 7. First connecting piece 4 is preferably made from plastic. First connecting piece 4 has an opening 23. A circumferential projection 11 is formed axially spaced apart from opening 23 (therefore in the direction toward cartridge housing 3). Projection 11 extends perpendicular to axis 14 (radially) encircling first connecting piece 4. Projection 11 juts out particularly at both sides relative to the outer lateral surface of first connecting piece 4. It is provided further here that projection 11 forms a cone 18 radially outward, which thereby increases the extension of projection 11 perpendicular to axis 14 in the sliding-on direction of clamping sleeve 8, therefore from opening 23 to cartridge housing 3.

(7) It is evident further that hose 7 with an end region 9 is put over opening 23 of first connecting piece 4, so that it extends to projection 11.

(8) A (single) clamping sleeve 8 is provided coaxially on the outside around first connecting piece 4 and end region 9 of hose 7. Clamping sleeve 8 has a (single) inward directed collar 10. As shown here, collar 10 is interrupted, as can be seen, for example, also from slots 22 visible in FIG. 1. Between slots 22 partial areas of clamping sleeve 8 form spring sections 20 (formed as a single piece with clamping sleeve 8). This construction allows spring sections 20 or collar 10 to widen, therefore to be bent outward transverse to axis 14 (radially), when they are moved beyond projection 11. Preferably, the front sides of collar 10 are formed with a sliding surface 19, which, the on the one hand, supports a slight bending during the slipping over cone 18, but, on the other, also realizes a type of snap connection 12, when collar 10 engages behind projection 11.

(9) An especially strong bracing of the (preferably metallic) clamping sleeve is achieved in that a plurality of inward directed press rings 13 are formed on clamping sleeve 8, whereby the farthest removed press ring 13 is positioned axially adjacent or next to first connecting piece 4, such that a radially inward-most extent of the farthest removed press ring 13 is substantially axially aligned with the distal end/opening of the first connecting piece 4. As is shown in FIG. 2, this last press ring 13 is made deeper inwards and/or broader. It can also be seen that an increased deformation of hose 7 occurs hereby, particularly in an area in front of opening 23 of first connecting piece 4. An accurately fitting bracing of clamping sleeve 8 between opening 23 and projection 11 is realized in this way. The other press rings 13, which lie between collar 10 and this last press ring, are made smaller and are used in particular for secure contact pressure and/or water tightness.

(10) Finally, it is also shown here that a tool engaging area 17 is also provided on the outer circumferential surface of clamping sleeve 8, which can be used for assembly purposes.

(11) The invention thereby solves the aforementioned problems and provides in particular a device for a hose fitting, whereby two clamping sleeves form a non-metallic, inseparable snap connection toward the cartridge housing and toward the spray plate.

(12) As a precaution, it should also be pointed out that the combinations of technical features as shown in the figures are not obligatory in general. This means that the technical features of a figure can be combined with other technical features of another figure and/or the general description. Something different should apply only if the combination of features was shown explicitly here and/or the person skilled in the art realizes that otherwise the basic functions of the device can no longer be fulfilled.

(13) The invention being thus described, it will be obvious that the same may be varied in many ways. Such variations are not to be regarded as a departure from the spirit and scope of the invention, and all such modifications as would be obvious to one skilled in the art are to be included within the scope of the following claims.