Fastening device for hoses

Abstract

A fastening device for hoses including two fastening parts two fastening parts adapted to be joined with each other and each having at least one recess which, in the joined state of the fastening parts, form at least one passage for at least one hose. The fastening parts are each formed by a fastening body with an elastic fastening component, wherein the fastening body has a lower elasticity than the elastic fastening component. The elastic fastening component respectively forms a recess surface in the recess. The elastic fastening component is molded to the fastening body to form a chemical bond with the same.

Claims

1. A fastening device for hoses, comprising: two fastening parts adapted to be joined with each other and each having at least one recess which, in the joined state of the fastening parts, form at least one passage for at least one hose, wherein the fastening parts are each formed by a fastening body with an elastic fastening component, wherein the fastening body has a lower elasticity than the elastic fastening component, wherein the elastic fastening component respectively forms a recess surface in the recess, wherein, when the at least one hose is fixed, the recess surface contacts the at least one hose, wherein the elastic fastening component is chemically bonded to the fastening body, wherein the recess surface has a main curvature extending transversely to a direction of the at least one passage, wherein the main curvature has a changing radius, wherein each fastening body forms at least one contact surface for contacting the respective other fastening part, the at least one contact surface having a throughbore provided therein, and wherein at least one of the fastening parts comprises a mounting recess for mounting the fastening device to an environment.

2. The fastening device of claim 1, wherein each recess has a cross section of semi-elliptic shape or a shape of a segment of an ellipse.

3. The fastening device of claim 1, wherein the recess surface is stepless at least in the area forming a passage for a hose.

4. The fastening device of claim 1, wherein the fastening body is formed of a thermoplastic material and/or the elastic fastening component is formed of a thermoplastic elastomer.

5. The fastening device of claim 1, wherein the fastening parts each have a plurality of recesses which, in the joined state of the fastening parts, form a plurality of passages.

6. The fastening device of claim 5, wherein the elastic fastening component forms the recess surface of a plurality or all recesses of the fastening part.

7. The fastening device of claim 1, wherein the mounting recess comprises a separate elastic section.

8. The fastening device of claim 1, wherein the elastic fastening component extends into the mounting recess.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The invention will be explained in more detail hereunder with reference to the following Figures. In the Figures:

(2) FIG. 1a is a schematic perspective view of a fastening device according to the invention,

(3) FIG. 1b is a schematic side view of a fastening part of the fastening device illustrated in FIG. 1a, and

(4) FIG. 2 is a schematic side view of a fastening part of a second embodiment of a fastening device according to the invention.

(5) FIGS. 1a and 1b schematically illustrate a fastening device according to the invention.

DETAILED DESCRIPTION

(6) The fastening device 1 is formed by two fastening parts 3a, 3b of identical design. The fastening parts 3a, 3b can be joined by arranging an upper fastening part 3a in an inversed manner with respect to the lower fastening part 3b. The sides of the fastening parts 3a, 3b now facing each other are thereby matched to each other. Throughbores 5 are provided in the fastening parts 3a, 3b so that the fastening parts 3a, 3b can be connected with each other using fastening means such as screws, for example.

(7) The fastening parts 3a, 3b each comprise recesses 7 which, in the connected state of the fastening parts 3a, 3b, form passages for hoses, such as e.g. hydraulic hoses. Using the embodiment illustrated in FIGS. 1a and 1b, it is possible to hold 6 hoses. In the connected state, the fastening parts 3a, 3b contact each other by contact surfaces 9.

(8) The fastening parts 3a, 3b are each formed by a fastening body 11 and an elastic fastening component 13. The fastening body and the elastic fastening component 13 are chemically bonded together, wherein the elastic fastening component 13 is molded to the fastening body 11. The manufacture of the fastening device 1 may be done e.g. by means of a two-component injection molding process (2K injection molding).

(9) The elastic fastening component 13 is arranged in the recesses 7 and forms a respective recess surface 15 therein. In use, the recess surfaces 15 are partly in contact with the hoses.

(10) As can best be seen in FIG. 1b, the recesses 7 each have a semi-oval cross section. The same is obtained by the recess surface 15 having a main curvature extending transversely to the direction of passage, the radius of said curvature changing. Due to the oval cross section it is achieved that hoses having an outer diameter slightly larger than the passages formed by the recesses 7, are not squeezed, but can expand a little to the sides. The recess surfaces 15 are formed to be step-less. Thereby, an advantageous fastening of the hoses is achieved, since the recess surfaces 15 can contact the hoses in a very large area.

(11) The fastening body 11 has a significantly lower elasticity than the elastic fastening elements 13. For example, the fastening body 11 may have a modulus of elasticity of at least 200 times the modulus of elasticity of the elastic fastening component 13. Thereby, the fastening body is designed to be significantly more stable, and when connecting the two fastening parts 3a, 3b, it is prevented that the fastening parts 3a, 3b become undesirably warped. For this purpose, it is particularly provided that the contacting surfaces 9 are formed by the fastening body 11 and thus have the high rigidity.

(12) The fastening body 11 may be made e.g. of a thermoplastic material, whereas the elastic fastening component is formed e.g. of a thermoplastic elastomer.

(13) The elastic fastening component 13 is formed in a continuous manner, wherein, besides the chemical bond, a form-fit connection with the fastening body 11 is formed at least in part, whereby a higher stability can be obtained.

(14) On the side opposite the recesses 7, the fastening parts 3a, 3b each have a mounting recess 17. The elastic fastening component 13 extends into the mounting recess 17. The fastening device 1 of the present invention can be mounted advantageously to its environment via the mounting recess 17.

(15) FIG. 2 is a schematic side view of a fastening part 3a, 3b of a second embodiment of a fastening device according to the invention. The fastening part 3a, 3b illustrated in FIG. 2 is of a structure similar to that of the fastening parts 3a, 3b shown in FIGS. 1A and 1B, but the fastening part 3a, 3b illustrated in FIG. 2 has a small number of recesses 7. A fastening device formed with the fastening part 3a, 3b illustrated in FIG. 2 can thus form passages for three hoses.

(16) Further, the fastening part 3a, 3b illustrated in FIG. 2 has two mounting recesses 17. Thereby, a flexible mounting of the fastening device is possible by using one of the mounting recesses. As an alternative, both mounting recesses 17 can be used, whereby a particularly stable mounting is possible, which, in addition, avoids a twisting of the fastening device.