EP3385478B1 - Serrure à loquet - Google Patents

Serrure à loquet Download PDF

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Publication number
EP3385478B1
EP3385478B1 EP17164636.7A EP17164636A EP3385478B1 EP 3385478 B1 EP3385478 B1 EP 3385478B1 EP 17164636 A EP17164636 A EP 17164636A EP 3385478 B1 EP3385478 B1 EP 3385478B1
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EP
European Patent Office
Prior art keywords
latch
lever
lock
protrusion
movement
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.)
Active
Application number
EP17164636.7A
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German (de)
English (en)
Other versions
EP3385478A1 (fr
Inventor
Mahmut ACAR
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.)
Kale Kilit Ve Kalip Sanayi AS
Original Assignee
Kale Kilit Ve Kalip Sanayi AS
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.)
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Publication date
Application filed by Kale Kilit Ve Kalip Sanayi AS filed Critical Kale Kilit Ve Kalip Sanayi AS
Priority to EP17164636.7A priority Critical patent/EP3385478B1/fr
Publication of EP3385478A1 publication Critical patent/EP3385478A1/fr
Application granted granted Critical
Publication of EP3385478B1 publication Critical patent/EP3385478B1/fr
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B55/00—Locks in which a sliding latch is used also as a locking bolt
    • 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
    • E05B15/02—Striking-plates; Keepers; Bolt staples; Escutcheons
    • E05B15/0205—Striking-plates, keepers, staples

Definitions

  • the present invention relates to a lock, more particularly to a lock which is locked over its latch.
  • the present door locks (4) includes both of the latch and bolt elements for closing and locking of the door (19). Therefore the sizes of locks (4) are big and this corresponds to high production, storage and transportation costs. Furthermore the locking and closing necessitate cavities (12 and 13) to cooperate with latch and bolt, respectively.
  • the lock does not include a bolt but only a latch. In such locks, the latch can only provide locking when it is fully extracted from the lock body, and therefore they require a latch cavity (12) formed in the frame.
  • beddings made of plastics are used to cover these cavities (12 and/or 13) formed on the frame for latch and/or bolt, to improve the aesthetics or to provide an enhanced bedding to latch or bolt. This further increases the costs.
  • a latch bolt plate (9) is mounted onto a frame (8) using 3 or more screws. Assembly costs increase with the sum of the labor costs for screwing down each of said screws, and with the material costs of the screw.
  • US 1 560 914 A1 discloses a latch lock which includes a latch and a lever, which is movable in a perpendicular direction relative to the movement direction of the latch.
  • the latch lock allows coupling between the latch and the lever at a single locking position.
  • the main object of the present invention is provision of a solution to the above-mentioned drawbacks encountered in the state of the art.
  • Another object of the present invention is provision of a lock which enables locking without necessitating any cavity on the door frame.
  • a further object of the present invention is provision of a lock which enables locking over its latch without necessitating a bolt.
  • a further object of the present invention is provision of an adaptive lock which enables locking in different wing-frame gap distances by the latch extending out to different distances away from the lock body.
  • the present invention proposes a lock comprising a latch, a latch coupling element provided on the latch, a lever sized and shaped to have a movement range in a direction (+y/-y) perpendicular to the movement direction (+x/-x) of the latch; the lever comprising a lever coupling element sized and shaped to delimit movement of the latch by coupling with a latch coupling element on the latch at a plurality of locking positions on the movement direction of the latch.
  • the lock according to the present invention includes;
  • a preferred embodiment of the lock according to the present invention may comprise a lever (46) under a force in direction +y exerted by a resilient member, and movement of the lever relative to the plane being delimited into a direction +y/y perpendicular to the latch movement direction.
  • Said lever (46) may comprise a a protrusion (67) extending out of said plane.
  • the lock may further comprise a a tumbler (48) which is essentially flat and essentially parallel to said plane.
  • the tumbler (48) may be under a force in direction +x exerted by a resilient member (for instance: a tumbler spring).
  • the tumbler (48) may comprise a guide (e.g. a channel, cf. Fig.
  • the tumbler (48) may comprise a protrusion (64) extending out of the plane (x-y), the protrusion being sized and shaped to couple with the protrusion (62); and the lock body (for instance, on an upper cover (44) which defines a greater side of the essentially flat lock geometry, parallel to the x-y plane, and which is to protect the lock mechanism from external factors) may comprise a protrusion (62) extending towards the -x direction, said protrusion (62) being sized and shaped so that it delimits the movement of the tumbler (48) in +y/-y (i.e. +y and/or -y) when it is coupled with the protrusion (64) in a locking position.
  • the latch (50) may comprise a coupling element (58); said coupling element (58) may comprise one or more indentations (65) which extend in +y/-y drection.
  • the lever (46) may comprise a lever guide (66) sized and shaped so that it couples with a key (3) when the key is introduced into the lock in a direction perpendicular to the x/y direction and then turned, by the key (3) at least partly entering into the lever guide (66) in a direction -x, and then guiding the lever (46) to move it in directions +y/-y.
  • the lever (46) may further comprise a tab (72) sized and shaped so that it snags the key (3) upon turning of the key into an unlocking direction in a position other than the locking position and then moves the lever (46) by pushing it in a direction +y.
  • the latch (50) may comprise (for instance in a secured or fixed manner) one or more latch protrusions (51) (e.g. a rear washer) extending out of x-y plane.
  • the lever (46) may comprise an inclined portion (59) shaped and sized so that it provides movement of the latch (50) in +x direction by contacting the latch protrusion (51) upon moving the lever (46) in +y direction.
  • the lever (46) may comprise a pin (60).
  • the lock may comprise a hub (56) sized and shaped so that it is turned by means of a handle (2); and a protrusion (61) provided on said hub (56), sized and shaped so that it moves the lever (46) in +y direction upon snagging the pin.
  • Fig.6 can be inspected to better understand the manner of opening and closing of the lock (41) over the handle (2).
  • the hub (56) connected to the handle rotates in a direction (M) depicted with the bow-shaped arrow.
  • a protrusion (61) provided on the hub couples with the pin (60) provided on the lever and thus the lever (46) is moved in the direction +y.
  • the inclined portion (59) provided on the lever (46) couples with the latch protrusion (51) (e.g. a rear washer on the latch), and from that moment on the latch (50) gets retracted into the +x direction (into the lock body).
  • the latch (50) couples with the latch bolt plate (e.g. by passing over a latch bolt plate protrusion (14) and getting positioned beyond that), a back portion of the latch which is essentially parallel to the x-y plane matches with the latch bolt plate, and the movement of the lock with a component perpendicular to the x-y plane gets delimited by the latch bolt plate (e.g. by the protrusion (14) provided on the latch bolt plate). Inconvenient opening of the door without retraction of the latch into the lock is thus prevented.
  • the distance between the lock body or door wing (1) and the frame (40) is not the same and standardized for each door.
  • Different gap distances for various frame-wing couples are exemplified in drawings of the present application as X, Y and Z.
  • the lock according to the present invention provides functionality notwithstanding the presence or depth of bolt cavity on frame, by being easily adaptable to frame-wing couples with different gap distances.
  • Fig. 8-1 in a lock according to the present invention where the latch is extended out of the lock body to a distance X, exemplifies (a) detailed front view of the movement of the tumbler relative to the lever and the movement of the lever relative to the lock body, and (b) for the same case, a momentary position of the protrusion provided on the tumbler relative to the tab provided on the lock body when the protrusion passes over the tab thereby passing from a second side to a first side of the tab.
  • the latch (50) In a state where the door (19) is not coupled with the frame (40) (i.e. when the door is open), the latch (50) is in a state of maximum extention out of the lock body in accordance with a force exerted onto it by a resilient member.
  • the latch (50) can be partially pushed into the lock body (in direction +x) so that the extension of the latch (50) out of the lock body is delimited to the gap distance between the wing and frame (here: X).
  • the key (3) is turned in a locking direction (e.g. a direction "+" depicted with the bow-shaped arrow in Fig.
  • the tumbler (48) gets moved to an extent where the protrusion (64) provided on the tumbler passes over the protrusion (62) provided on the lock body by pushing the tumbler into -x direction e.g. against a spring force.
  • the key (66) couples with the lever guide (66) and moves the lever (along with the tumbler (48) by pulling it in -y direction.
  • Figure 8-2 shows, in the lock shown in the Fig. 8-1 , at a state where the latch is extended to a distance X outside the lock body, (a) detailed front view exemplifying the locking over the latch by means of coupling between the coupling elements on the lever and the latch, by movement of the tumbler relative to the lever and by movement of the lever relative to the lock body as a result of turning the key in a locking direction, and (b) front view exemplifying the position providing the locking by coupling between the tumbler protrusion and a (second) side of the tab on the lock body.
  • the coupling element (63) provided on the lever couples with teh coupling element (65) provided on the latch as a result of the movement of the lever (aslong with the tumbler (48)) by pulling it in -y direction; by further turning the key, the coupling between the key (3) and the lever guide (66) can discontinue, since the lever guide (66) can have a shape and size to provide such discontinuation .
  • the tumbler (48) gets released from the key (3) and moves in the +x direction in accordance with a force (e.g.
  • a tumbler spring which is exerted by a tumbler spring (49); thereby it remains cought at a first side (74) of the protrusion (62) provided on the lock body, which has a shape and size to prevent motion (of the tumbler along with the lever) in +y direction (e.g. in accordance with a force exerted by a lever spring).
  • Figure 8-3 shows, in the lock shown in the Fig. 8-1 and Fig. 8-2 , at a state where the latch is extended to a distance Y different than the distance X outside the lock body, (a) detail view showing that the locking over the latch is still available by coupling between corresponding coupling elements provided on the lever and the latch, as a result of a movement of the tumbler relative to the lever and a movement of the lever relative to the lock body upon turning of the key in the locking direction, and (b) for the same state, a front view exemplifying the position which provides locking by coupling between the tumbler protrusion and a (second) side of the tab provided on the lock body.
  • the latch (50) is locked by the protrusion (64) provided on the tumbler being cought at a first side (74) of the protrusion (62) provided on the lock body.
  • the lever can have a shape and size to provide that a coupling between the lever pin (60) and the hub protrusion (61) is impossible in this locked state.
  • the hub protrusion (61) cannot couple with the lever pin (60) even when the handle (2) is turned, and therefore it cannot release the lever coupling element (63) (e.g. lever teeth) from the latch coupling element (65) (e.g. an indentation provided on the latch coupling element, or catcher teeth) because it cannot pull the lever in +y direction; and the locked state is thereby maintained.
  • the gap distance (Y) on Fig. 8-3 is shown different than the gap distance (X) shown in Fig. 8-1 and Fig. 8-2 .
  • the key (3) is turned in an opening direction (e.g. a "-" direction as depicted with the bow-shaped arrow in Fig.9 ) opposite to the locking direction.
  • an opening direction e.g. a "-" direction as depicted with the bow-shaped arrow in Fig.9
  • the key (3) moves the tumbler (48) to a distance sufficient for the tumbler goes beyond the protrusion (62) provided on the lock body by pushing the tumbler in -x direction.
  • the lever (along with the tumbler) simultaneously moves in +y direction because of the coupling between the key (3) and the lever guide (66), in accordance with said movement the lever coupling element (63) and the latch coupling element (65) diverge from each other and thus the coupling between them ends.
  • the lever guide (66) preferably has a shape and size so that it provides ending of the coupling between that and the key at farther turning of the key; so that the key gets released from the lever guide upon ending the coupling between the lever and the latch, thereby the tumbler (48) moves in +x direction under the force (e.g. that exerted by the tumbler spring (49)) upon ending of the coupling between the lever and the latch. Due to this movement, the tumbler protrusion (64) gets positioned at a second side of the protrusion (62) on the lock body (e.g. on an upper cover (44)) and thus couples with the protrusion (62) in an unlocked state ( Fig. 16 ).
  • the lever guide (66) and the tumbler (48) can have a shape and size to provide pulling of the tumbler in -x direction when the lever guide and the key are coupled, and to further provide a simultaneous and aligned contact of the lever and tumbler with the key as a result of the ending of said coupling.
  • the latch (50) can be retracted into the lock body over the handle (2) (as exemplified in Fig. 6 ), and independent from this, over the key (3) (as exemplified in Fig.9 ).
  • the retraction of the latch (50) into the lock body by moving it in +x direction over the key (3) occurs according to the following mechanism: As the key is turned (e.g. in a "-" direction as depicted with a bow-shaped arrow in Fig. 9 ) it snags a lever tab (72) having a shape and size so that it couples as a result of getting snagged by the key.
  • the lever (46) moves in +y direction by being pushed by the key.
  • the inclined portion (59) on the lever gets into contact with the latch protrusion (51) and pushes the latch protrusion in +x direction and thereby moves the latch in +x direction.
  • the lever (46) moves in -y direction in accordance with a force (e.g. that exerted thereonto by a lever spring (47)).
  • the latch (50) simultaneously moves in -x direction (e.g.
  • the extent of this movement is preferably defined by a contact/abutment between a front washer (52) on the latch and a direction changing member (54) provided on the lock body.
  • the aspect of the back side of the latch (50) relative to the lock body can be changed as exemplified in Fig. 10 ).
  • contact between the latch and the direction changing member ends, and the respective limit of the movement range of the latch defined by the direction changing member is removed.
  • the latch is preferably under an effect of a force exerted thereon by a resililient member (direction changing member spring (55)) in a direction outwards from the lock body (-x direction).
  • a resililient member direction changing member spring (55)
  • the latch can be pulled out from the lock body, or alternatively the latch protrudes out of the lock body in accordance with said force by resilient member.
  • the direction changing member moves in -y direction so that it recouples with the latch by getting into the former position relative to the latch, and thereby limiting the movement range of the latch again.
  • direction of the latch relative to the lock body can be changed.
  • the lock (41) according to the present invention can be put into use in case where a latch cavity and a latch bolt plate on that is already present on a door frame, by aligning the lock to said latch cavity and latch bolt plate.
  • the lock (41) according to the present invention can be utilized by coupling it with a latch bolt plate 810) suitable to function therewith by including a protrusion (14), so that it does not necessitate formation of a latch cavity on the frame.
  • Said protrusion (14) can have a shape and size to delimit the movement of the latch (50) by opposing a back portion thereof which is essentially parallel to the x-y plane in a state where the door (19) is closed. Thereby it provides sufficient surface area to prevent inappropriate opening of the door merely by pulling/pushing of the door wing.
  • the use of a latch cavity-free, lean and low cost door frame (40) as exemplified in Fig.1 is thus enabled.
  • the way of montage can be easily adapted to the opening direction of the door wing thanks to that the latch bolt plate (10) has a basic (e.g. symmetrical) form as exemplified in Fig.2 .
  • the lock (41) can function with a latch bolt plate (10) which does not necessitate a cavity on the frame by including a protrusion (14) as exemplified in Fig.1 .
  • Labor on both the wing (1) and the frame (40) is thereby facilitated and related costs are minimized.
  • the lock (41) according to the present invention eliminates the necessity to a bolt, it is no more necessary to form a bolt cavity (13) as exemplified in Fig.17 in frame (40) production. This eliminates time losses related to cavity (12,13) position determination and formation at production of frame (40), and thereby the present invention further provides advantages in labor costs.
  • the latch bolt plate (10) suitable to be used without forming a cavity on the frame can be formed monolithic and can be mounted over only a couple of screw holes (16) as exemplified in Fig.2 .
  • the production, storage and transport costs of teh latch bolt plate can be kept at minimum, and also it can be mounted in an easy and rapid fashion.
  • the lock (41) can provide locking at very short gap distances (X) between wing (1) and frame (40), it adapts to any type of wing-frame combinations. Montage and operation thereof is thereby very easy.

Landscapes

  • Lock And Its Accessories (AREA)

Claims (6)

  1. - Serrure comprenant un pêne (50),
    un élément de couplage de pêne (58) prévu sur la pêne (50),
    un levier (46) dimensionné et formé pour avoir une plage de mouvement dans une direction (+y/-y) perpendiculaire à la direction de mouvement (+x/-x) du pêne (50) ;
    le levier (46) comprenant un élément de couplage de levier (63) dimensionné et formé pour délimiter un mouvement du pêne (50) par couplage avec un élément de couplage de pêne (58) sur le pêne (50) à une pluralité de positions de verrouillage sur la direction de mouvement (+x/-x) du pêne (50).
  2. - Serrure selon la revendication 1, comprenant un corps de serrure à placer dans un battant de porte, le corps de serrure comprenant une saillie essentiellement plate (62) selon un plan (x-y), ladite saillie (62) s'étendant dans la direction -x,
    le corps de serrure comprenant en outre un pêne (50) agencé pour s'étendre de manière réversible hors du corps de serrure selon une force exercée par un élément élastique dans une direction -x ; la plage de mouvement du pêne (50) par rapport audit plan (x-y) étant délimitée dans une direction +x/-x sur ledit plan.
  3. - Serrure selon la revendication 2, comprenant un levier (46)
    dont un mouvement par rapport au plan (x-y) est délimité dans une direction +y/-y perpendiculaire à la direction de mouvement de pêne, et
    le levier étant soumis à une force dans une direction +y exercée par un élément élastique,
    le levier (46) comprenant une saillie (67) s'étendant hors du plan (x-y),
    la serrure comprenant en outre une gorge (48) qui est essentiellement plate et essentiellement parallèle audit plan ;
    la gorge (48) :
    étant soumise à une force dans une direction +x exercée par un élément élastique,
    comprenant un guide ayant une taille et une forme pour guider le mouvement de la saillie (67) sur le levier (46) et délimiter un mouvement relatif sur la direction +y/-y,
    la gorge (48) comprenant une saillie (64) s'étendant hors du plan (x-y), et le corps de serrure comprenant une saillie (62) qui s'étend dans la direction -x et qui est dimensionnée et formée pour délimiter un mouvement de la gorge (48) dans la direction +y et/ou -y par couplage entre la saillie (64) sur la gorge et la saillie (62) sur le corps de serrure à une position de verrouillage.
  4. - Serrure selon l'une quelconque des revendications 1 à 3, dans laquelle le pêne (50) comprend un élément de couplage (58) ayant un ou plusieurs crans (65) s'étendant dans la direction +y/-y.
  5. - Serrure selon l'une quelconque des revendications 2 à 4, dans laquelle le levier (46) comprend un guide de levier (66) dimensionné et formé de telle sorte qu'il se couple avec une clé (3) lorsque la clé est introduite dans la serrure dans une direction perpendiculaire à la direction x/y puis tournée, par la clé (3) entrant au moins partiellement dans le guide de levier (66) dans une direction -x, puis guidant le levier (46) pour le déplacer dans des directions +y/-y ; et
    le levier comprend en outre une languette (72) dimensionnée et formée de telle sorte qu'elle accroche la clé (3) lors de la rotation de la clé dans une direction de déverrouillage dans une position autre que la position de verrouillage, puis déplace le levier (46) en le poussant dans une direction +y.
  6. - Serrure selon l'une quelconque des revendications 1 à 5, comprenant en outre une plaque de pêne demi-tour (10) ayant une saillie (14) dimensionnée et formée pour délimiter la plage de mouvement du pêne (50) par couplage avec une partie arrière du pêne, ladite partie arrière étant essentiellement parallèle au plan x-y.
EP17164636.7A 2017-04-03 2017-04-03 Serrure à loquet Active EP3385478B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP17164636.7A EP3385478B1 (fr) 2017-04-03 2017-04-03 Serrure à loquet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17164636.7A EP3385478B1 (fr) 2017-04-03 2017-04-03 Serrure à loquet

Publications (2)

Publication Number Publication Date
EP3385478A1 EP3385478A1 (fr) 2018-10-10
EP3385478B1 true EP3385478B1 (fr) 2022-06-22

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ID=58800596

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17164636.7A Active EP3385478B1 (fr) 2017-04-03 2017-04-03 Serrure à loquet

Country Status (1)

Country Link
EP (1) EP3385478B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2585893B (en) * 2019-07-19 2022-08-31 Greywood Carpentry Ltd A Door Installation Kit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1560914A (en) * 1923-10-19 1925-11-10 Pressley A C Moore Door lock
AU523995B2 (en) * 1979-10-16 1982-08-26 Whitco Pty. Ltd. Door lock
DK200900822A (en) * 2009-07-02 2011-01-03 Jeld Wen Danmark As Metallic frame for enclosing a door or a window

Also Published As

Publication number Publication date
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