WO2019238386A1

WO2019238386A1 - Cover with low push resistance

Info

Publication number: WO2019238386A1
Application number: PCT/EP2019/063424
Authority: WO
Inventors: Raul JURJ
Original assignee: Cisma Solutions Aps
Priority date: 2018-06-11
Filing date: 2019-05-24
Publication date: 2019-12-19
Also published as: DE102018209226B4; DE102018209226A1

Abstract

The invention relates to a cover assembly (10) with a tailpipe cover (12) and a holding element (16) for securing the tailpipe cover (12) to a tailpipe (14). A spring element (22) of the holding element (16) is designed to be bistable. By virtue of the bistability, the spring element (22) can be converted into a first stable shape (24) and a second stable shape. The holding force exerted onto the tailpipe (14) by the spring element (16) is lower in the first stable shape (24) than in the second stable shape. At least one section (18) of the holding element (16) can be secured to the inner face (20) of the tailpipe cover (12).

Description

Technical field

The invention relates to a screen with an end pipe cover and a holding element for fastening the end pipe cover to an end pipe, the holding element at least in sections on the inside of the

End pipe cover is arranged and has a spring element. The

The invention further relates to an exhaust arrangement with a low slip resistance when sliding on the tailpipe trim.

State of the art

For attaching a tailpipe trim to a tailpipe

Motor vehicle it is known from the prior art, a

Push the tailpipe trim with retaining clips to attach the tailpipe trim to an exhaust pipe. The postponement resistance caused by the holding clamps, among other things in the form of

Frictional forces are overcome. It is an object of the invention to provide an aperture in which the

Resistance to postponement when mounting the tailpipe trim on an end pipe is reduced, the mounted tailpipe trim in the assembled

Condition should still be securely attached to the tailpipe. It is a further object of the invention to provide an exhaust system with a

provide aperture according to the invention.

The object is achieved by an aperture according to claim 1. The exhaust arrangement according to the invention has the in claim 7 specified features. Advantageous configurations result from the respective subordinate claims.

Disclosure of the invention

The aperture or aperture arrangement according to the invention has an end tube aperture and a holding element for fastening the end tube aperture to an end tube. The holding element is arranged at least in sections on the inside of the tailpipe and has a

Spring element on. The diaphragm arrangement is characterized in that the spring element is designed to be bistable. It can optionally be folded down into a first shape and a second shape by the action of force. Due to the spring element, a lower holding force can be exerted on the tailpipe in the first form than in the second form. As a result, the tailpipe trim can be easily pushed onto the tailpipe with little holding force. A "snapping" of the spring element then causes a high holding force, so that the tailpipe cover can be held securely on the tailpipe. If the spring element is in the first form, then the holding element is also in the first form. The spring element is in the second form , then the holding element is also in the second form.

The holding element can be formed in one piece and / or sheet metal

exhibit. As a result, the holding element is lightweight

produced. The holding element is particularly preferably in one piece or

integrally formed with the spring element. This greatly simplifies the design of the panel.

The holding element can be concave, at least in sections, in one form, in particular the first form, and in the other form, in particular the second form, in a convex manner. In particular The holding element can be designed to be concave in one form and convex in the other form with respect to the inside of the tailpipe trim, ie towards this inside. In the case of the different shapes, the holding element can rest on the tailpipe trim and / or the tailpipe with different contact points.

The tailpipe cover can extend in the radial direction

Have through recess. The axis of the

Through recess can be perpendicular to the longitudinal axis of the

Extend tailpipe trim. The passage recess can be used to act on the spring element with a force, in particular in the radial direction, in order to fold down the spring element. The spring element is preferably provided with a through the through recess

gripping fingers of a mechanic can be operated.

A section of the holding element can be latched in the through recess. As a result, the holding element can be positioned firmly, in particular in a form-fitting manner, on the tailpipe trim, in particular the inside of the tailpipe trim.

At least one of the ends of the holding element can be hook-shaped and / or curved. As a result, the elastic effect of the spring element can be reinforced at the ends. In addition, the hook-shaped end section can increase the holding force of the tailpipe trim on the tailpipe by being able to claw in the tailpipe. The hook-shaped end section extends in the second form of the

Spring element preferably against the direction of withdrawal

Tailpipe cover from the tailpipe. The holding element can be designed in the form of a bistable leaf spring. Leaf springs usually have a high load capacity. An exhaust arrangement has an end pipe and a cover or cover arrangement according to the invention, the cover being arranged on the end pipe. Then the tailpipe trim can be easily attached to the tailpipe by the holding element.

Brief description of the drawing

Further features and advantages of the invention result from the following detailed description of an embodiment of the invention, from the patent claims and with reference to the figures of the drawing, which shows details essential to the invention. The

Different features can be implemented individually or in groups in any combination in variants of the invention. The features shown in the drawing are shown in such a way that the special features of the invention can be made clearly visible.

1 shows a schematic longitudinal section of an inventive device

Panel arrangement with the holding element in its first form;

Fig. 2 shows a schematic longitudinal section of the invention

Aperture arrangement with the holding element in its second

Shape;

Embodiments of the invention

1 shows a schematic longitudinal section of a diaphragm arrangement 10 according to the invention with an end pipe diaphragm 12 on an end pipe 14 (an exhaust assembly of a motor vehicle) with a holding member 16 shown in its first form. A first end 18 of the holding element 16 is located on the inside 20 of the tailpipe panel 12. Das

Holding element 16 has a bistable spring element 22, which is connected to the first end 18 of the holding element 16 in a material-locking manner. The spring element 22 has in its first shape 24 an arcuate first section 26. The arcuate first section 26 is concave with respect to the inside 20 of the tailpipe panel 12 against which it rests. The spring element 22 abuts the tailpipe 14 with a first apex 30.

The spring element 22 has a second in the first form 24

Apex 32, at which a free, unattached second end 34 protrudes from the first section 26 in a hook shape 35a. The first end 18 of the holding element can form part of the spring element 22. The second vertex 32 of the spring element 22 is in one

Through recess 36a with an opening width 37a

End pipe cover 12 arranged. A force 38 (in particular exerted by a fitter, not shown) can act on the second apex 32 of the spring element 22 through the passage recess 36a. As a result, the spring element 22 can be folded down.

FIG. 2 shows a schematic longitudinal section of the panel arrangement 10 with the holding element 16 after the spring element 22 has been folded over. The spring element 22 has a second shape 39 in the form of a second arcuate section 40 which extends over the entire spring element 22. The second arcuate section 40 is convex with respect to the inside 20 of the tailpipe trim 12. The free second end 34 abuts the end pipe 14. The spring element 22 exerts a holding force on the end pipe 14. The second arcuate section 40 runs smoothly, without kinks, without Vertexes from the first end 18 of the holding element 16 to the second free end 34.

Taking all the figures of the drawing together, the invention relates in summary to a panel arrangement 10 with an end tube panel 12 and a holding element 16 for fastening the end tube panel 12 to an end tube 14. A spring element 22 of the

Holding element 16 is bistable. Due to the bistability, the spring element 22 can be converted into a stable first shape 24 and a stable second shape 39. A lower holding force is exerted on the tailpipe 14 by the spring element 16 in the stable first shape 24 than in the stable second shape 39. At least one section 18 of the holding element 16 can be fastened to the inside 20 of the tailpipe cover 12.

Claims

PatentansErüche

1. Panel (10) with an end pipe cover (12) and a holding element (16) for fastening the end pipe cover (12) to an end pipe

(14), the holding element (16) being arranged at least in sections (18) on the inside (20) of the tailpipe trim (12) and having a spring element (22),

characterized in that

the spring element (22) is designed to be bistable in that it can be folded down by a force (38) into a first form (24) and a second form (39), one in the first form (24) due to the spring element (22) lower holding force can be exerted on the end pipe (14) than in the second form (39).

2. Panel according to claim 1, wherein the holding element (16) is formed in one piece and / or has sheet metal.

3. Aperture according to one of the preceding claims, wherein the

Holding element (16) at least in sections in one form

(24, 39) is concave and convex in the other shape (24, 39).

4. Aperture according to one of the preceding claims, wherein the

Tailpipe cover (12) extending in the radial direction

Has passage recess (36a).

5. Panel according to one of the preceding claims, wherein at least one of the ends (34) of the holding element (16) is hook-shaped (35a) and / or curved.

6. Aperture according to one of the preceding claims, wherein the

Holding element (16) is designed in the form of a bistable leaf spring.

7. Exhaust arrangement with an end pipe (14) and an end pipe cover (12) according to any one of the preceding claims, wherein the

Tailpipe cover (12) is arranged on the tailpipe (14).