WO2020011522A1

WO2020011522A1 - Cover assembly with increasing push resistance of the tailpipe cover

Info

Publication number: WO2020011522A1
Application number: PCT/EP2019/066769
Authority: WO
Inventors: Adrijan Gjurov
Original assignee: Cisma Solutions Aps
Priority date: 2018-07-11
Filing date: 2019-06-25
Publication date: 2020-01-16
Also published as: DE102018211494B3

Abstract

The invention relates to a cover assembly (12) with a tailpipe cover (22) and a spring (14). The spring (14) has a stop (40) which can be moved by a tailpipe (36). The spring (14) can be deflected by a support (34). The spring (14) can act as a lever with a lever force acting on the tailpipe (36), said lever force increasing the further the tailpipe (36) pushes the stop (40) as the tailpipe cover (22) is pushed onto the tailpipe (36).

Description

Aperture arrangement with increasing

Resistance to opening the tailpipe trim Technical field

The invention relates to an aperture arrangement with increasing

Postponement resistance when pushing on a tailpipe trim. The invention further relates to an exhaust assembly with a growing

Slip-on 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. From the beginning of the postponement, a comparatively large postponement resistance, which is caused by the

Brackets caused for example in the form of frictional forces are overcome. It is an object of the invention to provide a diaphragm arrangement in which the force on the tailpipe when the tailpipe diaphragm is pushed on is initially not present or is low and from a predetermined value

Insertion depth of the tailpipe in the tailpipe screen increases rapidly in a short time. It is also an object of the invention to provide an exhaust assembly with increasing resistance to sliding of the tailpipe trim

provide.

The object is achieved by an arrangement according to claim 1. The exhaust arrangement according to the invention has the in claim 11 specified features. Advantageous configurations result from the respective subordinate claims.

Disclosure of the invention

The diaphragm arrangement with an end pipe diaphragm for mounting on an end pipe and a spring is characterized in that the spring has a stop which can be moved through the end pipe. The spring can be moved around a support so that as the insertion depth of the

Tail pipe in the tailpipe trim can be exerted on the tailpipe by a fleeling effect of the spring around the support an increasing folding force. The tailpipe trim can be pushed onto the tailpipe until the

Tail pipe touches the stop. If the

Tailpipe trim on the tailpipe exerts a pushing force on the stop, which is oriented opposite to the direction in which the tailpipe trim is pushed open. In relation to the tailpipe trim, the stop is opposite to the opening direction of the

Tailpipe cover moved. The spring rests as a movable stain on a support that is stationary with respect to the tailpipe trim. The Flebel has a first and a second rocker arm each on one side of the support. By moving the spring the first one

The rocker arm of the stain moves in the opposite direction to the opening direction of the tailpipe trim. The second seesaw arm exercises through the

Displacement force acting on the spring and the fleece effect on

Bearing a folding force on the tailpipe. The folding force has one component in the direction of sliding the tailpipe trim and a second component in the radial direction into the interior of the tailpipe trim. Before the fogging effect sets in, the tailpipe cover does not exert any force on the tailpipe. The tailpipe trim can be used until the

The fogging effect can be pushed onto the tailpipe without resistance. With the onset of the fleece effect, the folding force of the tailpipe trim increases onto the tailpipe so that the tailpipe trim is attached to the tailpipe.

The spring can have at least one hook-shaped spring clip. The folding force can be increased by a hook-shaped spring clip.

In an advantageous embodiment of the panel arrangement, the stop is designed as a spring clip. Through a spring clip,

in particular a hook-shaped spring clip, the spring can

Grip the end of the tailpipe better.

The tailpipe trim can be movably mounted in a holder that can be attached to the tailpipe trim. A holder, in particular a holder designed as a slide bearing, enables the spring to move in a straight line opposite to the direction in which the tailpipe cover is pushed open.

The support can be formed at one end of the folder. Then a spring clip can rest on the support.

The holder can have a C-shaped rail. The C-shaped rail can have overhangs on the top that prevent the spring from falling out of the holder. The holder can have a knob on which the spring is mounted. The spring can be arranged between the knob and the top of the folder, lying on the top. This enables the spring to be guided in a controlled manner. The holder can have a connection point, in particular plate-shaped, welded to the tailpipe cover. This allows the holder to be firmly connected to the tailpipe trim.

The holder can have sheet metal. A holder that is at least partially made of sheet metal can be stable with a comparatively low weight

be trained. The holder is preferably made entirely of sheet metal.

The diaphragm arrangement can have a plurality of previously described holders, in particular arranged uniformly along the circumference of the tailpipe diaphragm, with previously described springs slidably arranged therein

exhibit. This enables the holding forces to act symmetrically on the tailpipe to increase the stability of the fastening.

An exhaust arrangement has an orifice arrangement according to the invention and an end pipe, the end pipe orifice being arranged on the end pipe. In the exhaust arrangement, the tailpipe cover can be pushed onto the tailpipe largely without resistance and then fixed to the tailpipe with a high holding force.

In other words, a screen arrangement with an end pipe cover for mounting on an end pipe and a spring is characterized in that the spring is mounted so that it can move about a support of the holder in a holder attached to the end pipe cover. The spring has a first rocker arm and a second rocker arm. The first rocker arm has a stop that can be moved through the tail pipe. The second rocker arm has a free end for engaging in the tailpipe. The first rocker arm and the second rocker arm are arranged on the support. The spring can have at least one hook-shaped spring clip. The stop can be used as a spring clip, in particular as hook-shaped spring clip, be formed. The support can be formed at one end of the holder. The holder can be designed as a plain bearing, have a C-shaped rail, a knob

have on which the spring is mounted and / or one on the

Tailpipe cover welded, especially plate-shaped,

Have connection point.

Brief description of the drawing

Further features and advantages of the invention result from the following detailed description of several exemplary embodiments 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.

The drawing shows:

Fig. 1 shows a schematic longitudinal section through a

Exhaust arrangement with an inventive

Aperture arrangement;

Fig. 2 is a side view of a holder and a spring

Aperture arrangement;

Fig. 3 shows a schematic cross section through the holder and

Feather; Figure 4 is an isometric view of the holder and spring. and

5 is an isometric view of the exhaust assembly.

Embodiments of the invention

Fig. 1 shows a schematic longitudinal section through a

Exhaust arrangement 10 with a diaphragm arrangement 12 according to the invention. A spring 14 of the diaphragm arrangement 12 is located in a holder 16. It is connected to a through a plate-shaped connection point 20

Tailpipe panel 22 of the panel assembly 12 welded. The spring 14 is movably mounted on a knob 24 on the underside 26 of the holder 16. It lies against the top 28 of the holder 16 for a controlled sliding movement. The spring 14 has a first rocker arm 30 and a second rocker arm 32. The spring 14 is movable against a support 34 at the lower end of the holder 16. In the present case, the spring 14 consists of the first rocker arm 30 and the second rocker arm 32. The support 34 separates the first rocker arm 30 from the second

Rocker arm 32.

The first rocker arm 30 projects inward in the radial direction 35 beyond the second rocker arm 32. When pushing the tailpipe trim 22 onto a tailpipe 36, the tailpipe 36 can be guided past the second rocker arm 32 and moved towards the first rocker arm 30. The spring 14 has at one end on the first rocker arm 30 a first hook-shaped spring clip 38. The first hook-shaped

Spring clip 38 serves as a stop 40 for the tail pipe 36. When

Pushing on the end pipe cover 22 presses the end pipe 36 with its end face against the stop 40. The first rocker arm 30 thus experiences a displacement force 42 with respect to the end pipe cover 22, which is directed in the opposite direction to the push-on direction 44. The spring 14 has at the other end a second hook-shaped spring clip 46 with the second rocker arm 32, which is formed on the first rocker arm 30 on the support 34. The second rocker arm 32 acts due to the displacement force 42 acting on the spring 14 and the leverage on the support 34 with a holding force 48 on the tail pipe 36. The holding force 48 is oriented obliquely with respect to the tail pipe cover 22 and has a component in the push-on direction 44 and another component in the radial direction 35 inwards. The holding force 48 takes with it

increasing insertion depth of the tail pipe 36 in the tail pipe cover 22 when the tail pipe 36 exerts a greater displacement force 42 on the spring 14. As a result, the tailpipe cover 22 can be pushed onto the tailpipe 36 practically without any force and, after the tailpipe 36 has come into contact with the stop 40, can be fixed to the tailpipe 36 with increasing holding force 48.

2 shows a side view of the holder 16 and the spring 14.

The holder 16 is a slide bearing with a C-shaped rail 52

educated. The knob 24 is on the underside 26, i.e. the radially inner side, the C-shaped rail 52 is formed. On the knob 24 and on the top 28 of the C-shaped rail, the spring 14 with the

Rocker arms 30, 32 arranged, which rests on the support 34. The plate-shaped connection point 20 is formed on the C-shaped rail 52.

Fig. 3 shows a cross section through the holder 16 with the C-shaped rail 52 and the knob 24 on the underside 26 of the C-shaped

Rail 52 and the spring 14 with the first spring clip 38. The C-shaped rail 52 has an overhang 54 on the upper side 28 for the controlled mounting of the spring 14.

4 shows an isometric view of the holder 16 and the spring 14 arranged in the C-shaped rail 52 with the first rocker arm 30 and the second rocker arm 32. You can also see the knob 24 on the flattened underside 26 and the connection point 20 of the holder 16. FIG. 5 shows an isometric view of the exhaust arrangement 10 with the tailpipe cover 22 with three holders 16a, 16b, 16c and three springs 14a, 14b, 14c, each arranged in a holder 16a-16c, which encompass one end of the end tube 36. The holders 16a-16c are evenly distributed along the circumference of the tailpipe panel 22. As a result, the holding forces, which are in each case brought about by the springs, act uniformly on the end pipe 36 on the circumferential side.

Taking all the figures of the drawing together, the invention relates in summary to a diaphragm arrangement 12 with an end pipe diaphragm 22 and a spring 14

characterized in that the spring 14 through a tail pipe 36

has displaceable stop 40. The spring 14 can be deflected around a support 34. The spring 14 can act as a lever with increasing leverage on the tail pipe 36, the further the tail pipe 36 moves the stop 40 when the tail pipe cover 22 is pushed onto the tail pipe 36.

Claims

claims

1. Aperture arrangement (12) with

an end pipe cover (22) for mounting on an end pipe (36) and a spring (14),

characterized in that

the spring (14) has a stop (40) which can be moved through the end pipe (36) and the spring (14) around a support (34)

is movable, so that as the depth of insertion of the tailpipe (36) into the tailpipe screen (22) is increased, an increasing folding force can be exerted on the tailpipe (36) by a spring effect of the spring (14) around the support (34).

2. Panel arrangement according to claim 1, wherein the spring (14) has at least one hook-shaped spring clip (38, 46).

3. Panel arrangement according to one of the preceding claims, wherein the stop (40) is designed as a spring clip (38, 46).

4. Panel arrangement according to one of the preceding claims, wherein the spring (14) is movably mounted in a holder (16) which can be fastened to the tailpipe panel (22).

5. A diaphragm arrangement according to claim 4, wherein the support (34)

an axial end of the folder (16) is formed.

6. Panel arrangement according to one of claims 4 or 5, wherein the holder (16) has a cross-sectionally C-shaped rail (52).

7. Panel arrangement according to one of claims 4 to 6, wherein the holder (16) has a knob (24) on which the spring (14) is mounted.

8. Panel arrangement according to one of claims 4 to 7, wherein the holder (16) has a welded to the tailpipe panel (22), in particular plate-shaped, connection point (20).

9. Panel arrangement according to one of claims 4 to 8, wherein the holder (16) comprises sheet metal.

10. A diaphragm arrangement according to one of claims 4 to 9, wherein the diaphragm arrangement (12) several, in particular along the

Has circumferentially of the tailpipe screen (22) uniformly arranged, holder (16a-16c) with slidably arranged springs (14a-14c).

11. Exhaust arrangement (10) with a diaphragm arrangement (12) according to one of the preceding claims and an end pipe (36), the end pipe diaphragm (22) being arranged on the end pipe (36).