EP0288210B1 - Motorhaube für ein Motorfahrzeug - Google Patents

Motorhaube für ein Motorfahrzeug Download PDF

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Publication number
EP0288210B1
EP0288210B1 EP88303363A EP88303363A EP0288210B1 EP 0288210 B1 EP0288210 B1 EP 0288210B1 EP 88303363 A EP88303363 A EP 88303363A EP 88303363 A EP88303363 A EP 88303363A EP 0288210 B1 EP0288210 B1 EP 0288210B1
Authority
EP
European Patent Office
Prior art keywords
striker
hood top
inner panel
secured
welded joints
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.)
Expired - Lifetime
Application number
EP88303363A
Other languages
English (en)
French (fr)
Other versions
EP0288210A1 (de
Inventor
Lawrence Michael Desmond Henwood
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ford Werke GmbH
Ford France SA
Ford Motor Co Ltd
Ford Motor Co
Original Assignee
Ford Werke GmbH
Ford France SA
Ford Motor Co Ltd
Ford Motor Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ford Werke GmbH, Ford France SA, Ford Motor Co Ltd, Ford Motor Co filed Critical Ford Werke GmbH
Priority to AT88303363T priority Critical patent/ATE60556T1/de
Publication of EP0288210A1 publication Critical patent/EP0288210A1/de
Application granted granted Critical
Publication of EP0288210B1 publication Critical patent/EP0288210B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
    • E05B85/04—Strikers
    • E05B85/045—Strikers for bifurcated bolts
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B83/00—Vehicle locks specially adapted for particular types of wing or vehicle
    • E05B83/16—Locks for luggage compartments, car boot lids or car bonnets

Definitions

  • This invention relates to hood tops for motor vehicles.
  • hood tops for motor vehicles comprise an outer panel, an inner panel secured to the outer panel, and a striker for a latch mechanism secured to the inner panel towards the front of the hood top.
  • Welded joints securing the striker to the inner panel may fail not only as a result of the application of excessively high opening forces on the hood top, but also as a result of the application of excessively high closing forces.
  • joints between the striker and the inner panel have often been provided with additional reinforcement plates or pressings of complex shape in the inner panel.
  • a hood top for a motor vehicle comprising an outer panel, an inner panel secured to the outer panel, and a striker for a latch mechanism secured to the inner panel towards the front of the hood top by welded joints characterised in that the striker and the part of the inner panel to which the striker is secured are so disposed relative to the outer panel that when the hood top is closed a substantial proportion of the reaction to the closing forces on the hood top is transmitted to the welded joints as shear forces.
  • the proportion of the reaction applied to the welded joints as shear forces will vary with the geometry of the hood top.
  • the welded joints preferably lie in planes inclined by no more than 65° to the direction in which the reaction to the closing forces is applied to the striker. As this angle decreases, the proportion of the reaction transmitted as shear forces will increase. However, as the angle approaches 0° the accommodation of the striker and the inner panel in the space available becomes more difficult. We have found that angles of 25-50°, especially about 45°, can most easily be accommodated, whilst ensuring that a significant proportion of the reaction is transmitted to the welded joints as shear forces.
  • the present invention is particularly suitable for a hood top in which the outer panel is symmetrical about a longitudinal central plane and has an upper surface extending forwardly from a transverse trailing edge generally parallel to a common plane of its hinge axis and a point of engagement of the striker with a latch mechanism, and a front surface extending at an angle in the central plane of from 30° to 65° (preferably 40-50°) to the said common plane upwardly and rearwardly from a transverse lower leading edge to meet the upper surface at a transverse upper leading edge.
  • the striker is preferably secured to a part of the inner panel that is disposed generally parallel to the front surface of the outer panel so that a significant proportion of the reaction to the closing forces is transmitted to the welded joints as shear forces.
  • the striker is in the form of an open loop projecting inwardly from the inner panel and terminating in legs secured to the inner panel by welded joints
  • the legs preferably lie in a plane parallel to the central plane of the hood top, thereby concentrating the reaction to the closing forces along the legs and maximising the shear forces applied to the welded joints.
  • the striker is secured by welded joints to a plate which is itself secured to the inner panel by welded joints.
  • the plate preferably lies between the striker and the surface of the inner panel that faces the outer panel, so that opening forces on the hood top compress the plate between the striker and the inner panel.
  • a hood top (or bonnet) 1 for a motor vehicle is held shut by a releasable latch mechanism, part of which is illustrated in Figures 4 and 5, which engages with a striker 20 secured towards the front of the hood top.
  • the latch mechanism When the latch mechanism is released, the hood top may be tilted about a hinge axis 3 ( Figure 1).
  • the hood top 1 comprises an outer panel 2, which is symmetrical about a longitudinal vertical central plane, and has an upper surface 5 that extends forwardly from a transverse trailing edge 6, generally parallel to the common plane P of the hinge axis 3 and the point of engagement 4 of the striker and the latch mechanism 30.
  • a front surface 8 of the outer panel 2 extends upwardly and rearwardly from a transverse lower leading edge 10 of the hood top 1 at an angle of about 45° to the plane P.
  • the upper and front surfaces 5 and 8 meet at a transverse upper leading edge 12.
  • An inner panel 13 is secured to the outer panel 2 by spot welds and clinches.
  • the inner panel 13 carries mounting plates for hinges towards the transverse trailing edge 6 of the outer panel.
  • part of the inner panel 13 in the central region of the hood top 1 immediately to the rear of the front surface 8 of the outer panel is disposed generally parallel to the front surface 8.
  • This part of the inner panel 13 has a rectangular aperture 15 ( Figures 4 and 5) which is surrounded by a mounting plate 16 secured to the surface of the inner panel 13 that faces the outer panel 2 by eight spot welded joints 14 indicated by crosses in Figure 4.
  • the striker 20 for the latch mechanism comprising a bar shaped to form an open loop 21 secured to the mounting plate 16 so that the loop 21 projects inwardly through the aperture 15 in the inner panel 13.
  • the striker 20 terminates in legs 22, 23 which are secured to the inner panel by welded joints indicated by the shaded areas 25 in Figures 3 and 4.
  • the legs 22, 23 lie in the same plane as the loop 21 and are secured so that they lie in a plane parallel to the central plane of the hood top 1.
  • the welded joints 14 and 25 all lie in planes parallel to the part of the inner panel 13 shown in Figure 4.
  • a latch mechanism part of which is illustrated at 30 in Figures 3 and 5 comprises a bracket 31 bolted to a cross-member (not shown) on the motor vehicle body.
  • the bracket 31 defines a recess 33 for receiving the loop 21 of the striker 20.
  • the recess 33 lies generally at right angles to the plane P.
  • angle C is about 45°.
  • the precise angle chosen in any particular case will depend on the space available for installation of the striker, which in turn depends on the shape of the outer panel 2 of the hood top 1.
  • the angle C is preferably no more than 65° and desirably less than 50°.

Landscapes

  • Superstructure Of Vehicle (AREA)
  • Ventilation (AREA)

Claims (7)

1. Motorhaube (1) für ein Kraftfahrzeug, die ein äußeres Blech (2), ein am äußeren Blech (2) befestigtes inneres Blech (13) und eine Schließöse (20) für einen Verriegelungsmechanismus (30) umfaßt, die durch Schweißverbindungen (14, 25) am inneren Blech (13) zum vorderen Ende der Motorhaube (1) hin befestigt ist, dadurch gekennzeichnet, daß die Schließöse (20) und der Teil des inneren Blechs (13), an dem die Schließöse (20) befestigt ist, so bezüglich dem äußeren Blech angeordnet sind, daß beim Schließen der Motorhaube (1) ein wesentlicher Anteil der Reaktion auf die Schließkräfte, die auf die Motorhaube (1) einwirken, als Scherkräfte auf die Schweißverbindungen (14, 25) übertragen wird.
2. Motorhaube nach Anspruch 1, bei der die Ebenen, in denen die Schweißverbindungen (14, 25) liegen, um nicht mehr als 65° in die Richtung geneigt sind, in der die Reaktion auf die Schließkräfte die Schließöse (20) trifft.
3. Motorhaube nach Anspruch 1, bei der das äußere Blech (2) symmetrisch um eine zentrale Längsebene liegt und eine obere Fläche (5), die sich von einer hinteren Querkante (6) nach vorne erstreckt, die allgemein parallel zu einer gemeinsamen Ebene (P) ihrer Scharnierachse (3) und einem punkt (4) liegt, an dem die Schließöse (20) in einen Verriegelungsmechanismus (30) eingreift, sowie eine Vorderfläche (8) aufweist, die sich in der zentralen Ebene in einem Winkel von 30° bis 65° zu jener gemeinsamen Ebene (P) oberhalb und nach rückwärts von einer vorderen unteren Querkante (10) erstreckt und an einer vorderen oberen Querkante (12) auf die obere Fläche (5) trifft; und die Schließöse (20) an einem Teil des inneren Blechs (13) befestigt ist, der im allgemeinen parallel zu der Vorderfläche (8) des äußeren Blechs (2) angeordnet ist.
4. Motorhaube nach einem der Ansprüche 1 bis 3, bei der die Schließöse (20) eine offene Schlaufe (21) umfaßt, die innen vom inneren Blech (13) wegragt und in durch Schweißverbindungen (14, 25) am inneren Blech (13) befestigten Schenkeln (22, 23) endet.
5. Motorhaube nach Anspruch 4, bei der die Schenkel (22, 23) in einer zur zentralen Vertikalebene der Motorhaube (1) parallelen Ebene liegen.
6. Motorhaube nach einem der Ansprüche 1 bis 5, bei der die Schließöse (20) an einer Platte (16) befestigt ist, die ihrerseits durch Schweißverbindungen (14) am inneren Blech (13) befestigt ist.
7. Motorhaube nach Anspruch 6, bei der die Schließöse (20) durch Schweißverbindungen (14) an der Platte (16) befestigt ist.
EP88303363A 1987-04-14 1988-04-14 Motorhaube für ein Motorfahrzeug Expired - Lifetime EP0288210B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88303363T ATE60556T1 (de) 1987-04-14 1988-04-14 Motorhaube fuer ein motorfahrzeug.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB08708919A GB2203389A (en) 1987-04-14 1987-04-14 Hood top or bonnet for a motor vehicle
GB8708919 1987-04-14

Publications (2)

Publication Number Publication Date
EP0288210A1 EP0288210A1 (de) 1988-10-26
EP0288210B1 true EP0288210B1 (de) 1991-01-30

Family

ID=10615802

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88303363A Expired - Lifetime EP0288210B1 (de) 1987-04-14 1988-04-14 Motorhaube für ein Motorfahrzeug

Country Status (5)

Country Link
EP (1) EP0288210B1 (de)
AT (1) ATE60556T1 (de)
DE (1) DE3861697D1 (de)
ES (1) ES2020328B3 (de)
GB (1) GB2203389A (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2930578B1 (fr) * 2008-04-25 2010-04-23 Coutier Moulage Gen Ind Mecanisme de gache

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB733985A (en) * 1952-11-07 1955-07-20 Gen Motors Corp Improvements in bonnet latch mechanisms for motor vehicles
GB998645A (en) * 1963-04-02 1965-07-21 Standard Pressed Steel Co Improvements in and relating to vehicle bonnet mounting and fastener means
DE2031583A1 (de) * 1970-06-26 1971-12-30 Dr.-Ing. H.C. F. Porsche Kg, 7000 Stuttgart-Zuffenhausen Haube für Kraftfahrzeuge
JPS5910682A (ja) * 1982-07-09 1984-01-20 日産自動車株式会社 自動車用スライドドアのロツク装置
DE3532095A1 (de) * 1985-04-26 1986-11-06 Webasto-Werk W. Baier GmbH & Co, 8035 Gauting Schiebedach fuer fahrzeuge

Also Published As

Publication number Publication date
DE3861697D1 (de) 1991-03-07
GB8708919D0 (en) 1987-05-20
GB2203389A (en) 1988-10-19
EP0288210A1 (de) 1988-10-26
ATE60556T1 (de) 1991-02-15
ES2020328B3 (es) 1991-08-01

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