GB2507130A - Coined aluminium sheet metal part for attaching a handle to a vehicle roof - Google Patents
Coined aluminium sheet metal part for attaching a handle to a vehicle roof Download PDFInfo
- Publication number
- GB2507130A GB2507130A GB201219012A GB201219012A GB2507130A GB 2507130 A GB2507130 A GB 2507130A GB 201219012 A GB201219012 A GB 201219012A GB 201219012 A GB201219012 A GB 201219012A GB 2507130 A GB2507130 A GB 2507130A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sheet metal
- metal part
- handle
- coined
- mounting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N3/00—Arrangements or adaptations of other passenger fittings, not otherwise provided for
- B60N3/02—Arrangements or adaptations of other passenger fittings, not otherwise provided for of hand grips or straps
- B60N3/026—Arrangements or adaptations of other passenger fittings, not otherwise provided for of hand grips or straps characterised by the fixing means
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
A sheet metal part for the attachment of a handle 12 to a motor vehicle roof. The part comprises at least one mounting area H facing the vehicle roof in an installed state for mounting the sheet metal part to the vehicle roof and at least one mounting area H facing the handle for mounting the handle 12 to the sheet metal part. The sheet metal part is made of an aluminium alloy coined in at least one section 18. The mounting area facing the handle may comprise a mounting opening 16 which is preferably at least partially framed by the at least one coined section 18. The invention further relates to a method for manufacturing such a sheet metal part 10.
Description
Sheet Metal Part for Attaching a Handle to a Motor Vehicle Roof and the Manufacturing Method of such a Sheet Metal Part The invention relates to a sheet metal part according to the preamble of claim 1 and a manufacturing method for such a sheet metal part according to claim 5.
Such a sheet metal part by means of which a handle is attached to the passenger compartment roof of a motor vehicle has been described, for example, in DE 10 2009 048 338 Al. These sheet metal parts comprise a mounting section on the roof side for their attachment to the vehicle roof as well as a mounting section for the grab handle.
Usually such sheet metal parts are made of steel alloys due to their high load transfer properties, ensuring a specifically stable attachment of the handle to the vehicle roof.
Consequentially, these sheet metal parts usually have a comparatively high weight.
It is therefore the task of the present invention to develop a sheet metal part and an appropriate manufacturing method for the aforementioned part to ensure a lightweight but still stable attachment of a handle to a vehicle roof.
This task is accomplished by a sheet metal part according to claim 1 as well as a manufacturing method according to claim 5. Advantageous embodiments of the invention * are indicated in the dependent claims.
In order to develop a sheet metal part of the aforementioned kind, featuring considerably less weight compared to the state of the art, while featuring a stable attachment of the handle to the vehicle roof, according to the invention, a sheet metal part made of an aluminium alloy which is at least partially coined, in particular where the handle is mounted, is provided. Coining is a form of precision stamping compactly the material locally in the cold state, reducing surface grain size and work S...
: hardening the surface. This results in the creation of a sheet metal part with less weight, *J but which, due to its coined sections, ensures a locally enhanced strength, for example in the area where the handle is attached to the sheet metal part, thus leading to a part with a strength similar to a sheet steel part.
-It is readily appreciated that any sections of the sheet metal part can be coined depending on the areas where high loads usually occur or where a thinner material layer is required for other reasons.
In a further advantageous embodiment of the invention, a mounting opening in the material where the handle is to be attached to the sheet metal part is provided, the mounting opening being framed at least partially by at least one coined section. This results in a stable attachment of the handle to the part due to the densified material around the mounting opening. A further aspect of the invention features densified areas on opposite sides of the mounting opening, especially where the handle is to be attached, thus leading to a symmetrical attachment of the handle.
The advantages described in relation to the sheet metal part and its favourable embodiments also apply to its manufacturing method and vice versa.
Further advantages, features and details of the invention are detailed in the following description of preferred embodiments with reference to the drawings.
The drawings show in Fig.1 a perspective top view of a sheet metal part according to the invention facing a vehicle roof with a handle attached to it; Fig. 2a an enlarged perspective top view of a part of a mounting section with a handle attached to the sheet metal part; * * * * ** *...: Fig. 2b another enlarged and perspective top view of a part of the mounting section, * I where the handle attached to the sheet metal part; * III... * I
*:.,.: Fig. 3 a top view of a sheet metal strip in its various manufacturing and drawing stages; I...
* Fig.4a a schematic side view of the densified mounting section of the sheet metal part *:*i where the handle is attached to the sheet as well as a tool for creating the coined section, and Fig.4b a schematic top view of the sheet metal part according to Fig. 4a.
Fig.1 shows a perspective top view of a sheet metal part 10 used as a mounting device for attaching a grab handle 12 to the roof of a motor vehicle. The figure shows a section of the sheet metal part 10 facing the vehicle roof. The sheet metal part 10 has basically a trapezoid shape with a tapered end portion E showing an angular edge 11 facing downwards after its attachment to the vehicle roof. The end portion E comprises at least one mounting section H with a screw bolt 13 in order to attach the sheet metal part 10 to the vehicle roof, for example to a roof column. The central portion of the sheet metal part shows a basically triangular bead S. Its broader part on the opposite side of the end portion E exhibits mounting sections H on each corner with a handle 12 attached to it.
The handle 12 is attached with retaining means 14 in their respective mounting openings 16 as depicted in fig. 2a., with the help of locking means 15. The locking means 15 engage in the sheet metal forming part 10 in the areas of densified sections 18, to be further described with reference to fig. 2a. The retaining means 14 are higher than the surrounding sheet metal forming part 10, their base corresponding to the geometry of the mounting openings 16. The handle 12 is formed like a flat bar with a curved shape. The sheet metal formed part 10 is made of an aluminium alloy.
Fig. 2a shows a detailed perspective top view of one of the mounting sections H for the attachment of the handle 12 to the sheet metal part 10. The mounting openings 16 have a basically rectangular base contour with the broad sides B being straight and the narrow sides D rounded. Adjacent to the broad sides B are coined sections 18, also exhibiting a basically rectangular base contour. In one embodiment version, the coined sections 18 are thinner than the surrounding material of the sheet metal forming part 10 by 0,5 mm, which measures about 2,5 mm in the depicted example. * * * *
The advantage is the increased strength of the sheet metal part 10 in this area, thus meeting the relevant specifications requested for the sheet metal part 1 0.The decrease in the coined sections' 18 material thickness is particularly favourable to precisely hold the locking means 15 of the sheet metal part 10 at this point. So in the case of a given load impact on the handle 12, the coined sections 18 ensure an appropriate stability of the sheet metal part lOin either the attachment or mounting sections H. * * * * * * S. Fig. 2b shows another detailed perspective top view of a mounting section H for attaching a handle 12 to the sheet metal part 10. Here the detailed view is also limited to the mounting section H with the opening 16 and the adjoining coined section 16.
The mounting opening 16 is depicted in a sloped cut, so the rectangular base contour in this embodiment is only partially visible. The visible base contour of the coined section 18 in this cut version is larger than the base contour of the visible mounting opening 16 and encompasses it entirely.
Fig. 3 shows a sheet metal strip 20 depicting -from the right to the left in relation to the image plane -nine different production stages of the manufacturing process of the sheet metal part 10. The sequence of each production stage from the right to the left shows that the coined sections 18 are manufactured in several stages, followed by the manufacturing of the mounting openings 16. It is possible that the densifying or coining process of the sheet metal strip 20 for manufacturing the sheet metal forming part 10 is carried out by means of homogenous loads. So less overall load is being applied during each single densifying or coining step of the sheet metal strip 20, as it would be in the case of densifying or coining the part in one single production step.
Accordingly, a required tool element 22 can be used in a more sparing way as far as its durability is concerned, thus ensuring a longer lifespan of the tool element 22. It is also conceivable in a further embodiment that the first production step is a flanging process, followed by the manufacturing of the densified section 18 with the help of tool element 22.
It is furthermore possible to flange the punched-out material of the mounting opening 16 at least partially and then to transform it into the densified section 18 by either a densifying or coining process step.
Fig. 4a and 4b show in a schematic side and top view of the densified section 18 of the mounting section H for attaching the grab handle 12 to the sheet metal forming part 10. It also shows a tool element 22 used for creating the densified section 18. The tool element 22 has a basically rectangular base contour corresponding to the shape of the coined section 18. In a further embodiment which is not shown here, it is possible that the tool element 22 differs from the depicted base contour. Consequently, the base contour of the densified section 18 will also have a different shape.
One of several production or drawing steps is depicted. In the present case the sheet metal forming part lOis densified from 2,5mm to 2 mm in the coined section. The advantage is that the previously used retaining means 14 with their matching locking means 15 can still be used here, as the densified light-weight metal for the sheet metal forming part 10, an aluminium alloy for instance, now offers the strength requested in this area. Simultaneously, it is unnecessary to adjust the existing retaining means 14 and their matching locking means 15 in this area. In fact, the previously used retaining means 14 and their matching lacking means 15 are also suitable for the sheet metal forming part 10.
It is cognoscible that the schematic drawing of the mounting openings 16 shows a basically rectangular base contour with straight broad sides B and similar straight narrow sides D. Adjacent ta the broad sides B are the coined sections 16, featuring also a basically rectangular base contour and lesser length than the broad side B of the opening 16. * * . * * 0
S
* S e*5* * * **** * . -*. S ** S * * *
S -S
Claims (8)
- Claims 1. Sheet metal part (10) for the attachment of a handle (12) to a motor vehicle roof, comprising at least one mounting area (H) facing the vehicle roof in an installed state for mounting the sheet metal part (10)to the vehicle roof and at least one mounting area (H) facing the handle for mounting the handle (12) to the sheet metal part (10), characterized in that the sheet metal part (10) is made of an aluminium alloy which is coined in at least one section (18).
- 2. Sheet metal part (10) according to claim 1, characterized in that the sheet metal part (10) is coined in at least one section (18) of the mounting area (H) facing the handle.
- 3. Sheet metal part (10) according to claim 1 012, characterized in that the mounting area (H) facing the handle comprises a mounting opening (16), being at least partially framed by at least one coined section (18).
- 4, Sheet metal part (10) according to claim 3, characterized in that * coined sections (18) are provided on opposite sides of the mounting opening. * *
- 5. Sheet metal part (10) according to previous claims, characterized in that *r: there are two mounting areas (H) facing the handle are provided, being coined in at least one section (18).
- 6. Method for manufacturing of a sheet metal part (10) for the attachment of a handle (12) to a motor vehicle roof, comprising at least one mounting area (H) facing the vehicle roof for mounting the sheet metal forming part (10) to the vehicle roof and at least one mounting area (H) facing the handle for mounting the handle (12)to the sheet nièta[part (10), characterized in that the sheet metal part (10) is made of an aluminium alloy and coined in at least one section (18).
- 7. Method according to claim 6, characterized in that the sheet metal part (10) is being coined in at least one section (18) of the mounting area (H) facing the handle. * . * *
- S.S..... * .S * *S*5S555 * S *SSt * ..S. S *5 5 U 55 S 55
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB201219012A GB2507130A (en) | 2012-10-16 | 2012-10-16 | Coined aluminium sheet metal part for attaching a handle to a vehicle roof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB201219012A GB2507130A (en) | 2012-10-16 | 2012-10-16 | Coined aluminium sheet metal part for attaching a handle to a vehicle roof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB201219012D0 GB201219012D0 (en) | 2012-12-05 |
| GB2507130A true GB2507130A (en) | 2014-04-23 |
Family
ID=47359319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB201219012A Withdrawn GB2507130A (en) | 2012-10-16 | 2012-10-16 | Coined aluminium sheet metal part for attaching a handle to a vehicle roof |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2507130A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001293522A (en) * | 2000-04-12 | 2001-10-23 | Kobe Steel Ltd | Aluminum or aluminum alloy plate having bent part and manufacturing method thereof |
| DE102009048338A1 (en) * | 2009-10-06 | 2011-04-21 | GM Global Technology Operations, Inc., Detroit | Fastening device for fastening front seat side handle at roof column of motor vehicle, has retaining section arranged in base and exhibiting higher firmness during tensile load of handle than during pressure load |
-
2012
- 2012-10-16 GB GB201219012A patent/GB2507130A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001293522A (en) * | 2000-04-12 | 2001-10-23 | Kobe Steel Ltd | Aluminum or aluminum alloy plate having bent part and manufacturing method thereof |
| DE102009048338A1 (en) * | 2009-10-06 | 2011-04-21 | GM Global Technology Operations, Inc., Detroit | Fastening device for fastening front seat side handle at roof column of motor vehicle, has retaining section arranged in base and exhibiting higher firmness during tensile load of handle than during pressure load |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201219012D0 (en) | 2012-12-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104487320B (en) | B post and its manufacture method | |
| EP2504185B1 (en) | Vehicle door reinforcing beam | |
| US20120315109A1 (en) | Metal Members and Assemblies that have Reinforced Punched Holes and Method of Forming the Holes | |
| CA2983404C (en) | Pressed component manufacturing method, pressed component, and press apparatus | |
| JP6024832B2 (en) | Manufacturing method of forged crankshaft | |
| JP6132030B2 (en) | Manufacturing method of forged crankshaft | |
| WO2020145198A1 (en) | Motor vehicle inner panel and motor vehicle panel | |
| US7959212B2 (en) | Welded blank for vehicle door panel | |
| US20110215635A1 (en) | Adhesive wheel balance weight and process for producing the same | |
| CN106640909A (en) | Nut plate mounting device and punching process | |
| CN104245352A (en) | Vehicle wheel disc and manufacturing method therefor | |
| CN102052377A (en) | Bolt for panel combination and panel combination method using the same | |
| US11745238B2 (en) | Clamping strap | |
| GB2507130A (en) | Coined aluminium sheet metal part for attaching a handle to a vehicle roof | |
| RU2678537C2 (en) | Vehicle component for connecting body elements | |
| US9802241B2 (en) | Flat semi-finished product made of metal and methods for producing same as well as components thereof | |
| CA2537521C (en) | Process for forming a variable gauge metal sheet into a desired shape | |
| US11192162B2 (en) | Method and device for forming a semi-finished product | |
| CN105570266A (en) | Fastening apparatus for vehicle sheet component | |
| US11130163B2 (en) | Press molding method and press molding apparatus | |
| CN113879407A (en) | Patch board engine cover inner board, automobile and manufacturing method | |
| CN107921523A (en) | Design on surface for self-punching rivet buckle-like part drip molding | |
| US20190217366A1 (en) | Method and Tool for Producing Sheet Metal Components | |
| JP2004082796A (en) | Vehicle panel structure | |
| EP1666171B1 (en) | Aluminum alloy plate member having hem portion |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |