EP1085146A1 - Schloss, insbesondere für Kraftwagentüren, mit einer Abdeckkappe - Google Patents

Schloss, insbesondere für Kraftwagentüren, mit einer Abdeckkappe Download PDF

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Publication number
EP1085146A1
EP1085146A1 EP00500149A EP00500149A EP1085146A1 EP 1085146 A1 EP1085146 A1 EP 1085146A1 EP 00500149 A EP00500149 A EP 00500149A EP 00500149 A EP00500149 A EP 00500149A EP 1085146 A1 EP1085146 A1 EP 1085146A1
Authority
EP
European Patent Office
Prior art keywords
flap
key
lock
protuberance
opening
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Withdrawn
Application number
EP00500149A
Other languages
English (en)
French (fr)
Inventor
Victor Villagrasa Serrano
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.)
Valeo Sistemas de Seguridad y de Cierre SA
Original Assignee
Valeo Sistemas de Seguridad y de Cierre SA
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 Valeo Sistemas de Seguridad y de Cierre SA filed Critical Valeo Sistemas de Seguridad y de Cierre SA
Publication of EP1085146A1 publication Critical patent/EP1085146A1/de
Withdrawn legal-status Critical Current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
    • E05B17/00—Accessories in connection with locks
    • E05B17/14—Closures or guards for keyholes
    • E05B17/18—Closures or guards for keyholes shaped as lids or slides
    • E05B17/181—Closures or guards for keyholes shaped as lids or slides pivoting inwardly
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B77/00—Vehicle locks characterised by special functions or purposes
    • E05B77/34—Protection against weather or dirt, e.g. against water ingress
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/04—Spring arrangements in locks
    • E05B2015/0458—Leaf springs; Non-wound wire springs

Definitions

  • the present invention relates to a lock, especially for a vehicle door, with a closure flap, which comprises an opening for the insertion of the key, a flap which rocks between an open position and a closed position of said opening, and elastic means for holding the flap in the closed position when the key is not inserted in the lock, in such a manner that the key, when inserted, pushes the flap and causes it to rock towards the open position.
  • Certain locks and, in particular, the majority of locks for vehicle doors, include a flap for closing the key-insertion opening, the purpose of which is to protect the mechanism of the lock from dust and moisture from the outside.
  • the key-insertion opening is formed in the front cover of the lock and the flap is generally articulated next to the cover, and inside the lock, in order to be positioned in front of the opening when the key is not inserted.
  • the tip of the latter pushes the flap, causing it to rotate about its axis of articulation, and it allows the key to pass through.
  • a torsion spring normally pushes the flap towards the closed position.
  • a further drawback of known locks is that the torsion spring which holds the flap closed occupies a certain volume in the axial direction of the lock, which it would be desirable to reduce in order to be able to limit the total length of the lock.
  • the object of the present invention is to remedy the aforesaid drawbacks.
  • the invention proposes a lock such as that described in the introduction, which is characterized in that the rocking flap consists of a blade which comprises a protuberance in the region entering into contact with the key during insertion of the latter.
  • the protuberance reduces the wear of the flap due to friction with the key during the latter's insertion. This protection prevents the flap becoming damaged to the extent that it allows dust and water to enter the lock.
  • the aforesaid protuberance has a rounded, substantially semicylindrical shape.
  • This rounded protuberance eliminates friction between the key and the planar closure region of the flap, since the key slides directly over the aforesaid protuberance. Similarly, it facilitates sliding and reduces the area of contact.
  • the protuberance is formed by deep drawing of the blade forming the flap, although the flap may also be produced from Zamak, plastic, sintered material, etc., according to design requirements.
  • the protuberance of the flap projects, occupying at least partially the key-insertion opening. This arrangement makes it difficult for dirt to accumulate in the opening.
  • the elastic means for holding the flap in the closed position comprise a spring which has a pair of coplanar legs which are inserted in corresponding housing grooves of the lock, and a loop which is displaced with respect to the plane of the legs and which is in contact with the flap.
  • closure spring is very economical and, on the other hand, it is practically planar and occupies no space in the longitudinal direction of the lock.
  • said coplanar legs have the shape of arcs of a circle, and the loop has, next to the legs, a region which is folded backwards and, at the distal end, a tip which is folded forwards, said tip being in contact with the flap.
  • Figures 1 and 2 show the front part of the lock of the invention, with its corresponding closure flap and with the latter in two positions.
  • the principal elements of the lock 1 are, as in a conventional lock, a stator or body 3, a rotor or tube part 4, and an opening lever (not shown) which is integral in rotation with the tube part.
  • a stator or body 3 In radial openings of the tube part are a series of blades 6, each one pushed by a spring 7 so that, in the absence of the key, the blades interfere both with the tube part and with the body and block rotation of the tube part whilst, when the relevant key 2 is inserted, the blades move, cease to interfere with the body and allow rotation of the tube part and the associated opening lever.
  • the front part of the lock has a cover 14 with an opening 15, which is generally rectangular, for the insertion of the key 2.
  • the cover 14 is coupled on a widened or head region of the tube part 4 and may be joined to the latter in a conventional manner by riveting or, alternatively, by means of a pair of disc-shaped keys (not shown) inserted in individual openings of the cover 14 and in corresponding housings of the tube part 4.
  • the opening 15 of the cover 14 is normally closed, from the inside of the lock, by a closure flap 17 pushed by a corresponding return spring 18.
  • the flap 17 and the spring 18 according to the invention are shown in front and lateral elevation in Figures 3a, 3b and 4a, 4b.
  • the flap 17 forms an articulation pin 171 whose ends are inserted in housings 41 ( Figures 1, 2, 5) defined between a recess of the tube part 4 and the cover 14. In this manner, the flap is able to rock between a closed position ( Figure 1), in which it faces the opening 15 of the cover 14, and an open position ( Figure 2), when the key 2 is inserted in the lock.
  • the flap 17 includes a rounded protuberance 172 in its central region, preferably formed during a deep-drawing operation carried out on the actual flap. As may be seen in Figure 2, it is this protuberance which enters into contact with the key. In this manner, friction and wear of the flap in the planar closure region are eliminated since the key now slides only over the rounded protuberance.
  • the protuberance 172 also has the advantage that it occupies part of the opening 15 of the cover, affording additional protection because it also prevents the accumulation of dirt in the region where the key enters.
  • the spring 18 which pushes the flap 17 so that it returns to the closed position comprises (cf. Figures 4a, 4b) a pair of coplanar legs 181 in the shape of an arc of a circle which are each housed in their own housing groove 42 formed in the head of the tube part. Between the two legs, the wire of the spring forms a loop with a first region 182 which is folded backwards and a tip 183 which is folded forwards, which is in contact with the flap 17 ( Figures 1, 2).
  • This spring is much cheaper than conventional torsion springs and occupies practically no space in the longitudinal direction of the lock.
  • the assembly of the flap or the shape of the return spring could be different, depending on the requirements of each particular case.

Landscapes

  • Lock And Its Accessories (AREA)
EP00500149A 1999-07-07 2000-07-07 Schloss, insbesondere für Kraftwagentüren, mit einer Abdeckkappe Withdrawn EP1085146A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES9901509A ES2168178B1 (es) 1999-07-07 1999-07-07 Cerradura, especialmente para puerta de vehiculo, con trampilla de cierre.
ES9901509 1999-07-07

Publications (1)

Publication Number Publication Date
EP1085146A1 true EP1085146A1 (de) 2001-03-21

Family

ID=8309124

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00500149A Withdrawn EP1085146A1 (de) 1999-07-07 2000-07-07 Schloss, insbesondere für Kraftwagentüren, mit einer Abdeckkappe

Country Status (3)

Country Link
EP (1) EP1085146A1 (de)
BR (1) BR0002654A (de)
ES (1) ES2168178B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013093188A1 (en) * 2011-12-20 2013-06-27 Abloy Oy Disc tumbler or electronic lock cylinder with a keyhole protector

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1982956A (en) * 1933-06-09 1934-12-04 Briggs & Stratton Corp Lock
US2680965A (en) * 1952-01-25 1954-06-15 Briggs & Stratton Corp Lock mechanism with internal keyhole shutter
DE7718175U1 (de) * 1977-06-08 1977-10-13 Arn. Kiekert Soehne, 5628 Heiligenhaus Kraftfahrzeug-tuerverschluss
DE3517573A1 (de) * 1985-05-15 1986-11-20 Ewald Witte & Co, 5620 Velbert Schliesszylinder mit stirnseitiger abdeckkappe
DE4437242C1 (de) * 1994-10-18 1995-12-21 Ymos Ag Ind Produkte Schließzylinder für einen Kraftfahrzeug-Türverschluß

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1982956A (en) * 1933-06-09 1934-12-04 Briggs & Stratton Corp Lock
US2680965A (en) * 1952-01-25 1954-06-15 Briggs & Stratton Corp Lock mechanism with internal keyhole shutter
DE7718175U1 (de) * 1977-06-08 1977-10-13 Arn. Kiekert Soehne, 5628 Heiligenhaus Kraftfahrzeug-tuerverschluss
DE3517573A1 (de) * 1985-05-15 1986-11-20 Ewald Witte & Co, 5620 Velbert Schliesszylinder mit stirnseitiger abdeckkappe
DE4437242C1 (de) * 1994-10-18 1995-12-21 Ymos Ag Ind Produkte Schließzylinder für einen Kraftfahrzeug-Türverschluß

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013093188A1 (en) * 2011-12-20 2013-06-27 Abloy Oy Disc tumbler or electronic lock cylinder with a keyhole protector

Also Published As

Publication number Publication date
ES2168178A1 (es) 2002-06-01
ES2168178B1 (es) 2003-10-01
BR0002654A (pt) 2001-10-16

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