CN114072304A

CN114072304A - Bonnet clamped on a ring crimped onto a flexible tube of an oil expeller

Info

Publication number: CN114072304A
Application number: CN201980098266.5A
Authority: CN
Inventors: 卜令山; P·克拉弗里; C·沃塞勒
Original assignee: PSA Automobiles SA
Current assignee: PSA Automobiles SA
Priority date: 2019-07-09
Filing date: 2019-07-09
Publication date: 2022-02-18
Also published as: WO2021003667A1

Abstract

A vehicle, the vehicle comprising: a fluid hose (10) having an end (10.1) connected to a fitting (8); and a cover (12) having a clip (14) that snaps over an end (10.1) of the fluid hose (10), around the fitting (8); wherein the end (10.1) of the fluid hose (10) is surrounded by a ring (16), the clamping element (14) being snapped onto the ring (16).

Description

Bonnet clamped on a ring crimped onto a flexible tube of an oil expeller

Technical Field

The present application relates to the field of vehicles, and more particularly to securing an accessory (e.g., a cover) having a clamp to a fluid hose.

Background

It is common for covers, such as engine trim covers, to be fastened to the engine structural parts, and the fasteners that fasten the covers to the engine structural parts may in some constructions include clips that snap over the fluid hose, more specifically over the end of the hose that engages with the fitting (fitting). However, such fasteners can cause problems due to vibration, and the clamp can damage the elastomeric material of the hose over time to the point of creating a leak.

Published prior art patent document FR3028820a1 discloses a fastening member for fastening an engine decorative cover in a vehicle. The fastening member forms an impact damper of the trim cover to absorb pedestrian impact on the front portion when colliding against the hood of the vehicle. However, this fastening means does not provide any solution to the above-mentioned problem of fastening the cover to the fluid hose.

Published prior art patent document JP2005-155599a discloses an engine trim cover having a side wall that is fixed to the engine at a lower portion of the side wall so as to avoid a fastening element protruding from an upper wall of a valve chamber cover of the engine. The fastening element is of the clip type, i.e. it is engaged automatically only by pressing on the trim cover towards the engine, or vice versa. However, this fastening element does not provide any solution to the above-mentioned problem of fastening the cover to the fluid hose.

Disclosure of Invention

The technical problem of the present application is to overcome at least one of the drawbacks of the prior art described above. More precisely, the technical problem of the present application is to avoid the hose from being damaged by the vibrations of the clamp that supports the cover and is engaged with said hose.

The present application relates to a vehicle, comprising: a fluid hose having an end connected to a fitting; and a cover having a clip that snaps over an end of the fluid hose, around the fitting; the end of the fluid hose is surrounded by a ring-shaped piece, and the clamping piece is buckled on the ring-shaped piece.

According to an alternative embodiment, the collar is crimped (crimped) in order to apply pressure onto the end of the fluid hose along the circumference of the collar.

According to an alternative embodiment, the endless member is made of an endless belt.

According to an alternative embodiment, the strip has a flat profile.

According to an alternative embodiment, the ring has a width at least twice the width of the clamping member.

According to an alternative embodiment, the fitting is a hose barb fitting (hose barb).

According to an alternative embodiment, the fitting is on a valve chamber cover of an engine of the vehicle, the fluid hose is an oil expeller hose, and the cover is an upper trim cover of the engine.

According to an alternative embodiment, the clip is integrally formed with the cover.

According to an alternative embodiment, the clamp is C-shaped.

According to an alternative embodiment, the ring has a cylindrical outer surface that is free of protrusions along its entire circumference.

The present application is particularly advantageous in that it avoids damage to the fluid hose without any additional protective parts, since the ring pressing the fluid hose onto the fitting also serves as a receiving surface for the clamp.

Drawings

FIG. 1 is a perspective view of a valve cover on top of a vehicle engine and an engine trim cover attached with an oil expeller hose.

Fig. 2 is a detailed view of the degreaser hose of fig. 1 (as a subassembly).

Detailed Description

Fig. 1 shows an upper portion of an engine of a vehicle. The engine 2 comprises a valve cover 4 provided with a cap 6 for refilling the engine with oil and a fitting 8 for fluid connection with a decanter for degreasing the vapours accumulated on top of the engine 2. The fluid hose 10 is fluidly connected to a fitting 8 for fluidly connecting the engine 2 to a decanter (not shown but well known). The fluid hose 10 extends horizontally near a portion of the valve chamber cover 4. The trim cover 12 is positioned over the engine primarily for acoustic and aesthetic purposes. The trim cover 12 is attached to the engine, in particular by a clip 14 that snaps onto the fluid hose 10. The clamp 14 is advantageously C-shaped, i.e. forms an inner side opened by two flexible legs in a rounded shape. However, it should be understood that other shapes and configurations of the clip are contemplated. The decorative cover 12 can of course be fastened by other fastening means at different positions over the extension of the cover.

As shown in fig. 1, in particular in the enlarged region, a ring 16 is arranged around the fluid hose 10, on which ring the clamping element 14 is fitted. This means that the clamping member 14 does not directly contact the fluid hose 10 but actually only the ring-shaped member 16. This means that natural vibrations in the engine and vehicle do not cause the clamp 14 to damage the fluid hose 10.

The collar 16 is advantageously made of metal, for example stainless steel. The ring 16 may have a flat cross-sectional profile, as shown in fig. 1, or alternatively, the ring may have a U-shaped cross-sectional profile. This profile is advantageous in that it limits the possible axial movement of the clamping member 14 along the annular member 16. Advantageously, said ring has a cylindrical outer surface that is free of protrusions along more than half of its entire circumference, alternatively along its entire circumference, so that there is no interference with the grip 14.

It can be seen that the ring 16 advantageously has a width at least twice that of the clamp 14.

Fig. 2 is a detailed view of the degreaser hose of fig. 1 (as a subassembly). The subassembly 18 comprises a fluid hose 10, wherein a ring 16 presses a first end 10.1 of said hose 10 against a fitting (see fig. 1, not visible in fig. 2) of a valve chamber cover 4 of the engine, and a further fitting 20 is attached to an opposite second end 10.2 of the fluid hose 10. The ring 16 is, for example, an endless ring crimped onto the fluid hose 10, which is joined to the fitting by means of a crimping tool, which is well known per se.

When assembling the engine, at least the valve chamber cover of the engine, the first end 10.1 of the fluid hose 10 engages on the fitting, which may be a hose barb fitting. Hose barb fittings are well known as cylindrical parts or sections for attaching and securing hoses and have barb fitting-like collars on the cylindrical parts that allow flexible plastic or rubber tubing to make simple push-on connections that are not so easily broken. The non-crimped ring 16 is slid around the fluid hose 10 prior to engaging the first end of the fluid hose to the fitting. Once the fluid hose is properly engaged to the fitting, the collar 16 may be properly positioned around the fitting and the hose, such as at a longitudinally central location relative to the fitting. The ring 16 may then be crimped by the crimping tool described above. Such a tool surrounds a major portion of the outer peripheral surface of the collar and applies radial pressure thereto so as to plastically and uniformly deform the collar under pressure until the collar reaches an inner diameter less than the outer diameter of the fluid hose 10, thereby permanently pressing the material of the fluid hose against the fitting (e.g., hose barb fitting).

However, it should be understood that other configurations of the collar are contemplated, as long as such a collar provides sufficient space on its outer surface for receiving the clip.

Claims

1. A vehicle, the vehicle comprising:

-a fluid hose (10) having an end (10.1) connected to a fitting (8); and

-a cover (12) having a clip (14) that snaps over an end (10.1) of the fluid hose (10), around the fitting (8);

it is characterized in that the preparation method is characterized in that,

the end (10.1) of the fluid hose (10) is surrounded by a ring (16), and the clamping element (14) is snapped onto the ring (16).

2. Vehicle according to claim 1, wherein the collar (16) is crimped so as to exert pressure on the end (10.1) of the fluid hose (10) along the circumference of the collar.

3. The vehicle according to claim 1, wherein the ring-like member (16) is made of an endless belt.

4. The vehicle of claim 3, wherein the endless belt has a flat profile.

5. The vehicle of claim 1, wherein the ring (16) has a width that is at least twice a width of the clip (14).

6. Vehicle according to claim 1, wherein the fitting (8) is a hose barb fitting.

7. Vehicle according to claim 1, wherein the fitting (8) is on a valve chamber cover (4) of an engine (2) of the vehicle, the fluid hose (10) is an oil expeller hose, and the cover (12) is an upper decorative cover of the engine (2).

8. The vehicle of claim 1, wherein the clip (14) is integrally formed with the cover (12).

9. Vehicle according to claim 1, wherein the clamp (14) is C-shaped.

10. Vehicle according to claim 1, wherein said ring (16) has a cylindrical outer surface free from protrusions along its entire circumference.