Kink protector for a line

• US 7,837,157 B2
• Filed: 09/17/2008
• Issued: 11/23/2010
• Est. Priority Date: 09/21/2007
• Status: Expired due to Fees

• Current Assignee: Truplast Kunststofftechnik GmbH
• Original Assignee: Truplast Kunststofftechnik GmbH
• Inventors: Linhart, Christian Norbert, Linhart, Georg Peter
• Primary Examiner(s): Mckinnon; Terrell
• Assistant Examiner(s): Duckworth; Bradley H
• Application Number:
  US12/283,998
• Publication Number:
  US 20090078836A1
• Time in Patent Office: 797 Days
• Field of Search: 248/52, 248/71, 439/445, 439/447, 439/448
• US Class Current: 248/71
• CPC Class Codes: A47L 9/246 with electrical connectors
• CPC Class Codes: F16L 3/015 using articulated- or supple-guiding elements
• CPC Class Codes: H01R 13/562 Bending-relieving

Abstract

A kink protector for a line which is led outwardly through a wall opening in a connecting sleeve of a hose or a pipe. The kink protector has a mounting cap which encloses the line, and a support helix which is integral with the cap and surrounds the line and which is resilient in bending. An outlet stub is provided at the connecting sleeve and is connected with the wall opening and into which the mounting cap can be pushed with at least axial fixing of the line in mechanically positive and detenting manner for the line.

Claims

1. A kink protector for a line which is led outwardly through a wall opening in a connecting sleeve of a hose or a pipe, the kink protector comprising:

a mounting cap which encloses the line;

a support helix which is integral with the mounting cap and surrounds the line and which is resilient in bending; and

an outlet stub which is provided at the connecting sleeve, and is connected with the wall opening;

a first detent mechanism operable between the outlet stub and mounting cap;

a clamping section operable between the mounting cap and line such that the mounting cap can be pushed in an axial direction to both axially fix the mounting cap to the outlet stub and axially fix the line within the mounting cap at the same time.

2. A kink protector according to claim 1, wherein the outlet stub is constructed to have the shape of a section of a tube and has an outer annular end surface which bears by a corresponding abutment surface against the mounting cap, which is pushed into the outlet stub by the clamping section.

3. A kink protector according to claim 1, wherein the outlet stub is constructed to have the shape of a section of a tube and has an outer annular end surface which bears by a corresponding abutment surface against the mounting cap, which is pushed into the outlet stub by the clamping section;

and wherein the clamping section of the mounting cap comprising;

starting from the abutment surface, at least two part elements, which are spaced apart by axially extending slots and of which at least one is, when the line is pushed in, resiliently bendable outwardly and, when the clamping section is pushed into the outlet stub, resiliently bendable inwardly with clamping action against the line.

4. A kink protector according to claim 1, wherein the outlet stub is constructed to have the shape of a section of a tube and has an outer annular end surface which bears by a corresponding abutment surface against the mounting cap, which is pushed into the outlet stub by the clamping section;

wherein the clamping section of the mounting cap comprises;

starting from the abutment surface, at least two part elements, which are spaced apart by axially extending slots and of which at least one is, when the line is pushed in, resiliently bendable outwardly and, when the clamping section is pushed into the outlet stub, resiliently bendable inwardly with clamping action against the line, and wherein at least one of the part elements of the clamping section has on the outside a detent lug associated with a detent depression in the outlet stub, into which the detent lug enters when the mounting cap bears by its abutment surface on the end surface of the outlet stub.

5. A kink protector according to claim 1, wherein the outlet stub is constructed to have the shape of a section of a tube and has an outer annular end surface which bears by a corresponding abutment surface against the mounting cap, which is pushed into the outlet stub by the clamping section;

wherein the clamping section of the mounting cap comprising;

starting from the abutment surface, at least two part elements, which are spaced apart by axially extending slots and of which at least one is, when the line is pushed in, resiliently bendable outwardly and, when the clamping section is pushed into the outlet stub, resiliently bendable inwardly with clamping action against the line;

wherein at least one of the part elements of the clamping section has on the outside a detent lug associated with a detent depression in the outlet stub, into which the detent lug enters when the mounting cap bears by its abutment surface on the end surface of the outlet stub; and

wherein the detent depression in the outlet stub is formed as a wall opening of the outlet stub, which receives the detent lug in complementary manner, so that the mounting cap is not only axially fixed in the outlet stub, but also secured against rotations of the mounting cap in the outlet stub.

6. A kink protector according to claim 1, wherein the outlet stub is constructed to have the shape of a section of a tube and has an outer annular end surface which bears by a corresponding abutment surface against the mounting cap, which is pushed into the outlet stub by the clamping section;

wherein the clamping section of the mounting cap comprises;

starting from the abutment surface, at least two part elements, which are spaced apart by axially extending slots and of which at least one is, when the line is pushed in, resiliently bendable outwardly and, when the clamping section is pushed into the outlet stub, resiliently bendable inwardly with clamping action against the line;

wherein at least one of the part elements of the clamping section has on the outside a detent lug associated with a detent depression in the outlet stub, into which the detent lug enters when the mounting cap bears by its abutment surface on the end surface of the outlet stub; and

wherein the detent depression in the outlet stub is formed as an annular groove receiving the detent lug so that the mounting cap is only axially fixed in the outlet stub and is not secured against rotations of the mounting cap in the outlet stub.

7. A kink protector according to claim 1, wherein the outlet stub is constructed to have the shape of a section of a tube and has an outer annular end surface which bears by a corresponding abutment surface against the mounting cap, which is pushed into the outlet stub by the clamping section;

wherein the clamping section of the mounting cap comprises;

starting from the abutment surface, at least two part elements, which are spaced apart by axially extending slots and of which at least one is, when the line is pushed in, resiliently bendable outwardly and, when the clamping section is pushed into the outlet stub, resiliently bendable inwardly with clamping action against the line; and

wherein, for preventing rotation of the line in the mounting cap and for axially fixing the line in the mounting cap, the mounting cap is provided with the first detent mechanism which includes an inwardly protruding annular rib and at least one pointed radial projection engaging the line.

8. A kink protector according to claim 1, wherein the outlet stub is constructed to have the shape of a section of a tube and has an outer annular end surface which bears by a corresponding abutment surface against the mounting cap, which is pushed into the outlet stub by the clamping section;

wherein the clamping section of the mounting cap comprises;

starting from the abutment surface, at least two part elements, which are spaced apart by axially extending slots and of which at least one is, when the line is pushed in, resiliently bendable outwardly and, when the clamping section is pushed into the outlet stub, resiliently bendable inwardly with clamping action against the line; and

wherein the clamping section of the mounting cap is of conical construction at its free end.

9. A kink protector according to claim 1, wherein the outlet stub has a substantially cylindrical inner wall surface, the diameter of which is greater than the diameter of the wall opening in the connecting sleeve so that there is formed between the wall opening and the inner wall surface an annular step on which is placed a sealing ring, which surrounds the line and which is loaded with pressing pressure by the end surface of the mounting cap completely pushed into the outlet stub and detented therein.