EP0404743A1 - Door lock - Google Patents
Door lock Download PDFInfo
- Publication number
- EP0404743A1 EP0404743A1 EP90850207A EP90850207A EP0404743A1 EP 0404743 A1 EP0404743 A1 EP 0404743A1 EP 90850207 A EP90850207 A EP 90850207A EP 90850207 A EP90850207 A EP 90850207A EP 0404743 A1 EP0404743 A1 EP 0404743A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lock housing
- door
- lock
- recess
- door lock
- 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.)
- Granted
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B9/00—Lock casings or latch-mechanism casings ; Fastening locks or fasteners or parts thereof to the wing
- E05B9/08—Fastening locks or fasteners or parts thereof, e.g. the casings of latch-bolt locks or cylinder locks to the wing
Definitions
- the present invention relates to a door lock of the type being provided with a lock case with a forend plate and operating means such as door handles.
- the invention relates specifically to door locks intended for fitting into interior doors, but is of course also applicable in every case where a lock housing is fitted into a recess in a door leaf. Examples of such doors are exterior doors, cupboard doors, storage doors etc.
- the fitting of door locks, especially interior door locks is traditionally done by inserting the lock housing, provided with said forend plate, in a recess in the door leaf.
- the lock housing is thereafter secured in the recess by inserting two screws through screw holes in the forend plate, the screws being entirely secured in the door leaf.
- the screw holes are hereby positioned at the upper and lower end portions of the forend plate.
- the fitting of the lock housing in the door leaf is usually done at the manufacturing plant where the door leaf is made.
- the real function of the screws, in this stage is to serve as a transport safety for retaining the lock housing in the recess until final fitting is done at the customer's site by the fitting of operating means, for example in the shape of door handles and keyhole plates through openings in the door sides leading into the recess.
- the two screws in the forend plate also eliminates the inherent play which exists between the lock housing and the recess walls.
- the door handles are secured to the lock housing by two screws extending through the lock housing via the openings in the
- an operating rod usually having a square cross section, extending through the openings in the door leaf for engagement with the mechanism of the lock housing.
- the keyhole plates are secured in much the same way as the door handles, whereby the finally fitted door lock is held steadily in place in the door leaf with the help of a total of four through-going screws as well as said through going operating rod.
- the object of the present invention is to alleviate the above problems by providing a door lock of the type initially described, whereby manual as well as automatic fitting of the lock housing during a stage prior to final fitting is substantially facilitated, and whereby the storage of lock details is limited.
- a door lock comprising operating means and a lock housing provided with a forend plate for fitting into a herefore intended recess in a door leaf.
- the recess exhibits an opening for the lock housing facing towards the side of the door frame, and at least two openings in the sides of the door leaf being positioned opposite each other, through which said operating means extend for engagement with the lock housing in the final fitted state of the door lock.
- the invention relates specifically to that the lock housing, at at least one of its faces facing the wallfaces of the recess, exhibits a resilient retaining member.
- the retaining member is arranged to retain the lock housing in the recess during a stage prior to final fitting by way of engagement with said at least one wallface.
- the retaining members are at least two in number. One being hereby provided at the upper edge face of the lock housing and the other being provided at its lower edge face.
- the retaining members are also at least two in number, and are provided at the two side faces of the lock housing.
- said retaining members are at least four in number, and are provided at the upper and lower edge faces of the lock housing, as well as at its two side faces.
- the retaining member consists in a preferred embodiment of a substantially V-shaped leaf spring attached to the lock housing.
- One end portion of the leaf spring is hereby securely fastened in the face of the lock housing, while the other end portion is arranged to freely slide through a herefore intended opening in said face.
- both its end portions are designed to freely slide through herefore intended openings in the face of the lock housing.
- the idea behind the invention is thus that the traditional screws in the forend plate are eliminated by having the corresponding function built into the lock housing.
- the fitting of the lock housing in the door leaf is hereby made extremely simple and effective in the door manufacturing plant, as the housing is inserted into the recess of the door leaf in one single operation.
- the storage of lock details can be largely reduced since the need for the two screws is eliminated by way of the invention.
- Fig. 1 the reference numeral 1 denotes a door lock, which for the sake of clarity is shown in an exploded view.
- the door lock 1 hereby comprises operating members 2, which in the shown embodiments consists of door handles 3 and 4, as well as of an operating rod 5 of square cross section.
- the door lock further comprises a lock housing 8 provided with a forend plate 7.
- the lock housing 8 exhibits an upper 10 and a lower 11 through hole, which are positioned at the two side faces 12 of the housing 8.
- the upper through hole 10 exhibits a rotatable element 14 having a square cross section, for fitting of different key-adapted so called rowers, which are not shown in the figure.
- the lock bolt 16 of the door lock 1 is moved for locking or unlocking the door via the internal mechanism of the lock housing 8 (not shown).
- the corresponding lower through-hole 11 similarly exhibits an element 17 of square cross section, which is rotated by the aforementioned square-shaped operating rod 5 of the door handle 3, for opening and closing of the door.
- a broken door leaf 20 exhibiting a recess 21.
- the recess 21 more specifically consists of a rebate 22 for receiving the lock housing 8, as well as of a rebate 23 for countersinking the forend plate 7.
- the recess 21 further exhibits an opening 25 facing the door frame side, through which opening 25 the lock housing 8 is inserted, and at least two openings 26 positioned opposite each other, of which only one can be seen in the figure since the second one is covered up in this view.
- the openings 26 as well as the openings 27 are, as can be clearly seen in the figures, provided at the sides 30 and 31 of the door leaf 20.
- the lock housing 8 When the lock housing 8, provided with the forend plate 7 is to be fitted into the recess 21, which as mentioned often takes place in the manufacturing plant, said lock housing 8 is inserted into the recess 21 to the position shown in the Fig. 2.
- the lock housing 8 is hereby held steadily in place in the recess 21 by way of two resilient retaining members 33.
- the retaining members 33 are positioned at faces 12, 38, 39 of the lock house 8, said faces facing the wall faces 35 of the recess 21. In the shown embodiment the retaining members 33 are more specifically positioned at the upper 38 and the lower edge face 39 of the housing 8.
- the retaining members 33 consist in the embodiment of a leaf spring 40 attached to the lock housing 8, which leaf spring 40 is substantially V-shaped as is clearly shown in the figures.
- one end portion 41 of the leaf spring 40 is securely fastened in the face 12, 38, 39 of the lock housing 8, for instance with a rivet 45 extending through the wall of the ,lock housing 8 as well as through the leaf spring 40, as is shown in Fig. 2.
- the second end portion 42 of the leaf spring 40 is however designed to freely slide through a herefore intended opening 42 in said face 12, 38, 39.
- Another embodiment of the leaf spring 40 is shown in Fig. 4 and 5, where both end portions 41 and 42 of the leaf spring 40 freely slides through rectangular openings 43 and 44 in the face of the lock housing 8, for instance the upper edge face 38 as is clearly shown in Fig. 4.
- Fig. 4 Another embodiment of the leaf spring 40 is shown in Fig. 4 and 5, where both end portions 41 and 42 of the leaf spring 40 freely slides through rectangular openings 43 and 44 in the face of the lock housing 8, for instance the upper edge face 38 as is clearly shown in Fig. 4.
- the leaf spring 40 is bent upwards near the end portions 41 and 42 in order to hold the spring 40 in place when the lock housing 8 is not yet fitted in the recess 21 of the door leaf 20.
- the function of the retaining member 33 is as mentioned before to securely retain the lock housing 8 in the recess 21 from the time when the housing 8 is inserted in the recess 21 at the manufacturing plant, until when the door lock 1 is finally fitted at the customer's site.
- the rounded mid-sections 46 of the leaf springs 40 is hereby forcefully in contact with the wall faces 35 of the recess 21, whereby the lock housing 8 is secured in said recess 21 so that is will be safely held in place and so that the play between the housing 8 and the recess 21 is eliminated.
- the operating member 2 is attached to the lock housing 8 when the square shaped operating rod 5 is brought into engagement with the square element 17 in the lock housing 8, as the door handles 3 and 4 shown in the figure is fitted in the openings 26 of the door leaf.
- the fitting of the door handles 3 and 4 is carried out with two screws 48 and 49, which in a conventional manner extend from the door handle 4 through the opening 26 and into holes 50 positioned in the housing 8, to be screwed into the door handles on the other side of the door leaf 20.
- keyhole plates 51 and 52 are also fitted in a similar way with two through-going screws 54 and 55. The screws 54 and 55 are brought through the keyhole plate 51 via one of the openings 27 in the door leaf 20, through holes 57 in the lock housing 8, to finally be secured in the opposite keyhole plate 52.
- Fig. 4 and 5 is shown another embodiment of the invention, in which said retaining members 33 are additionally placed on the two side faces 12 of the lock housing 8.
- the retaining members 33 are here positioned approximately in line with the lock bolt 16, in order to make contact with the wall faces 35 of the recess 21 which lies between the opening 26 and 27 in the door leaf 20 as shown in Fig. 1.
- the leaf springs 40 does not necessarily have to be V-shaped, but may of course also exhibit a substantially semi-circular shape.
- the lock housing 8 may be provided with only one retaining member 33.
- the spring effect of the retaining member 33 may of course also be achieved by resilient members other than leaf springs, for instance helical spring operated members, rubber elements or stampings in the sheet metal of the lock housing 8.
- the described leaf spring 40 may further more be replaced by a resilient rod of circular cross section and in a similar shape.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Patch Boards (AREA)
- Lock And Its Accessories (AREA)
Abstract
Description
- The present invention relates to a door lock of the type being provided with a lock case with a forend plate and operating means such as door handles. The invention relates specifically to door locks intended for fitting into interior doors, but is of course also applicable in every case where a lock housing is fitted into a recess in a door leaf. Examples of such doors are exterior doors, cupboard doors, storage doors etc.
- The fitting of door locks, especially interior door locks is traditionally done by inserting the lock housing, provided with said forend plate, in a recess in the door leaf. The lock housing is thereafter secured in the recess by inserting two screws through screw holes in the forend plate, the screws being entirely secured in the door leaf. The screw holes are hereby positioned at the upper and lower end portions of the forend plate. The fitting of the lock housing in the door leaf is usually done at the manufacturing plant where the door leaf is made. The real function of the screws, in this stage, is to serve as a transport safety for retaining the lock housing in the recess until final fitting is done at the customer's site by the fitting of operating means, for example in the shape of door handles and keyhole plates through openings in the door sides leading into the recess. The two screws in the forend plate also eliminates the inherent play which exists between the lock housing and the recess walls. At the final fitting, the door handles are secured to the lock housing by two screws extending through the lock housing via the openings in the sides of the door leaf.
- Furthermore, between these screws there is an operating rod, usually having a square cross section, extending through the openings in the door leaf for engagement with the mechanism of the lock housing. The keyhole plates are secured in much the same way as the door handles, whereby the finally fitted door lock is held steadily in place in the door leaf with the help of a total of four through-going screws as well as said through going operating rod. Thus, after the final fitting, there is no further need for the aforementioned screws in the forend plate in order to securely hold the lock in the door leaf.
- However, in a large scale, time effective series production of doors, the traditional screw fitting of the lock housing causes problems, for instance in the shape of undesirable time losses. The traditional fitting is carried out today either manually by two men who then inserts and secures the lock housing, or in an automatic operation copying the manual method whereby two separate machine-screwdrivers are used, or alternatively a single machine-screwdriver moveable between two positions with the inherent control problems this inevitably brings about.
- The object of the present invention is to alleviate the above problems by providing a door lock of the type initially described, whereby manual as well as automatic fitting of the lock housing during a stage prior to final fitting is substantially facilitated, and whereby the storage of lock details is limited.
- The above object is achieved by providing a door lock according to the invention, comprising operating means and a lock housing provided with a forend plate for fitting into a herefore intended recess in a door leaf. The recess exhibits an opening for the lock housing facing towards the side of the door frame, and at least two openings in the sides of the door leaf being positioned opposite each other, through which said operating means extend for engagement with the lock housing in the final fitted state of the door lock. The invention relates specifically to that the lock housing, at at least one of its faces facing the wallfaces of the recess, exhibits a resilient retaining member. The retaining member is arranged to retain the lock housing in the recess during a stage prior to final fitting by way of engagement with said at least one wallface.
- In a preferred embodiment the retaining members are at least two in number. One being hereby provided at the upper edge face of the lock housing and the other being provided at its lower edge face.
- In another suitable embodiment the retaining members are also at least two in number, and are provided at the two side faces of the lock housing.
- In a third, advantageous embodiment, said retaining members are at least four in number, and are provided at the upper and lower edge faces of the lock housing, as well as at its two side faces.
- The retaining member consists in a preferred embodiment of a substantially V-shaped leaf spring attached to the lock housing. One end portion of the leaf spring is hereby securely fastened in the face of the lock housing, while the other end portion is arranged to freely slide through a herefore intended opening in said face.
- In another embodiment of the leaf spring, both its end portions are designed to freely slide through herefore intended openings in the face of the lock housing.
- The idea behind the invention is thus that the traditional screws in the forend plate are eliminated by having the corresponding function built into the lock housing. The fitting of the lock housing in the door leaf is hereby made extremely simple and effective in the door manufacturing plant, as the housing is inserted into the recess of the door leaf in one single operation. Furthermore, the storage of lock details can be largely reduced since the need for the two screws is eliminated by way of the invention.
- The invention will in the following be understood in greater detail from the following description of preferred embodiments with reference to the accompanying drawings, in which similar numerals in the different figures denote corresponding parts.
- Fig. 1 is an exploded view of a door lock according to a preferred embodiment of the invention. A broken up door leaf can also be seen in the figure.
- Fig. 2 is a broken sectional view of a lock housing provided with a forend plate and fitted in a recess in a door leaf according to the invention.
- Fig. 3 is a sectional view taken on line III-III in Fig. 2.
- Fig. 4 is a sectional view like the one in Fig. 2, but showing another embodiment of the invention.
- Fig. 5 is a sectional view taken on line V-V in Fig. 4.
- In Fig. 1 the reference numeral 1 denotes a door lock, which for the sake of clarity is shown in an exploded view. The door lock 1 hereby comprises operating
members 2, which in the shown embodiments consists ofdoor handles 3 and 4, as well as of anoperating rod 5 of square cross section. The door lock further comprises alock housing 8 provided with aforend plate 7. In this embodiment thelock housing 8 exhibits an upper 10 and a lower 11 through hole, which are positioned at the two side faces 12 of thehousing 8. The upper throughhole 10 exhibits arotatable element 14 having a square cross section, for fitting of different key-adapted so called rowers, which are not shown in the figure. When theelements 14 is rotated by a key or other tool, thelock bolt 16 of the door lock 1 is moved for locking or unlocking the door via the internal mechanism of the lock housing 8 (not shown). The corresponding lower through-hole 11 similarly exhibits anelement 17 of square cross section, which is rotated by the aforementioned square-shaped operating rod 5 of thedoor handle 3, for opening and closing of the door. - In Fig. there is further shown a
broken door leaf 20 exhibiting arecess 21. Therecess 21 more specifically consists of arebate 22 for receiving thelock housing 8, as well as of arebate 23 for countersinking theforend plate 7. Therecess 21 further exhibits an opening 25 facing the door frame side, through which opening 25 thelock housing 8 is inserted, and at least twoopenings 26 positioned opposite each other, of which only one can be seen in the figure since the second one is covered up in this view. Twofurther openings 27, also positioned opposite each other, lead to therecess 21 in order to access thesquare element 14 in thelock housing 8. Theopenings 26 as well as theopenings 27 are, as can be clearly seen in the figures, provided at thesides door leaf 20. - When the
lock housing 8, provided with theforend plate 7 is to be fitted into therecess 21, which as mentioned often takes place in the manufacturing plant, saidlock housing 8 is inserted into therecess 21 to the position shown in the Fig. 2. Thelock housing 8 is hereby held steadily in place in therecess 21 by way of two resilient retainingmembers 33. The retainingmembers 33 are positioned atfaces lock house 8, said faces facing the wall faces 35 of therecess 21. In the shown embodiment the retainingmembers 33 are more specifically positioned at the upper 38 and thelower edge face 39 of thehousing 8. The retainingmembers 33 consist in the embodiment of aleaf spring 40 attached to thelock housing 8, whichleaf spring 40 is substantially V-shaped as is clearly shown in the figures. In the embodiment shown in figures 1-3, oneend portion 41 of theleaf spring 40 is securely fastened in theface lock housing 8, for instance with arivet 45 extending through the wall of the ,lock housing 8 as well as through theleaf spring 40, as is shown in Fig. 2. Hereby maximum spring effect is achieved. Thesecond end portion 42 of theleaf spring 40 is however designed to freely slide through a herefore intended opening 42 in saidface leaf spring 40 is shown in Fig. 4 and 5, where bothend portions leaf spring 40 freely slides throughrectangular openings lock housing 8, for instance theupper edge face 38 as is clearly shown in Fig. 4. In the embodiment shown in Fig. 3, theleaf spring 40 is bent upwards near theend portions spring 40 in place when thelock housing 8 is not yet fitted in therecess 21 of thedoor leaf 20. The function of theretaining member 33 is as mentioned before to securely retain thelock housing 8 in therecess 21 from the time when thehousing 8 is inserted in therecess 21 at the manufacturing plant, until when the door lock 1 is finally fitted at the customer's site. Therounded mid-sections 46 of theleaf springs 40 is hereby forcefully in contact with the wall faces 35 of therecess 21, whereby thelock housing 8 is secured in saidrecess 21 so that is will be safely held in place and so that the play between thehousing 8 and therecess 21 is eliminated. - At the final fitting of the door lock 1 the operating
member 2 is attached to thelock housing 8 when the square shapedoperating rod 5 is brought into engagement with thesquare element 17 in thelock housing 8, as the door handles 3 and 4 shown in the figure is fitted in theopenings 26 of the door leaf. The fitting of the door handles 3 and 4 is carried out with twoscrews opening 26 and intoholes 50 positioned in thehousing 8, to be screwed into the door handles on the other side of thedoor leaf 20. At said final fitting,keyhole plates screws screws keyhole plate 51 via one of theopenings 27 in thedoor leaf 20, throughholes 57 in thelock housing 8, to finally be secured in theopposite keyhole plate 52. - In Fig. 4 and 5 is shown another embodiment of the invention, in which said retaining
members 33 are additionally placed on the two side faces 12 of thelock housing 8. The retainingmembers 33 are here positioned approximately in line with thelock bolt 16, in order to make contact with the wall faces 35 of therecess 21 which lies between theopening door leaf 20 as shown in Fig. 1. - It is understood that the present invention is not eliminated to the above described embodiments. The invention can naturally be freely modified within the scope of the accompanying patent claims. Thus, the leaf springs 40 does not necessarily have to be V-shaped, but may of course also exhibit a substantially semi-circular shape. Further, the
lock housing 8 may be provided with only one retainingmember 33. The spring effect of the retainingmember 33 may of course also be achieved by resilient members other than leaf springs, for instance helical spring operated members, rubber elements or stampings in the sheet metal of thelock housing 8. The describedleaf spring 40 may further more be replaced by a resilient rod of circular cross section and in a similar shape.
Claims (8)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8902167A SE463879B (en) | 1989-06-16 | 1989-06-16 | DOERRLAAS |
SE8902167 | 1989-06-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0404743A1 true EP0404743A1 (en) | 1990-12-27 |
EP0404743B1 EP0404743B1 (en) | 1992-11-25 |
Family
ID=20376295
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90850207A Revoked EP0404743B1 (en) | 1989-06-16 | 1990-05-23 | Door lock |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0404743B1 (en) |
DE (1) | DE69000496D1 (en) |
FI (1) | FI89621B (en) |
NO (1) | NO902674L (en) |
SE (1) | SE463879B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005095739A1 (en) * | 2004-04-01 | 2005-10-13 | Ruko A/S | A screw lock and use thereof |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2162425A1 (en) * | 1971-12-16 | 1973-06-20 | Kolb Kg Hans | BOLTLESS CYLINDER LOCK FASTENING |
DE2622816A1 (en) * | 1976-05-21 | 1977-12-01 | Schulte Schlagbaum Ag | Built in door lock cylinder securing piece - has snap action bridge shaped capping piece with channel for cylinder screw |
US4614374A (en) * | 1984-02-21 | 1986-09-30 | Lyon Metal Products, Incorporated | Recessed latch housing |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI47690C (en) * | 1970-03-10 | 1974-02-11 | Bjoerkboda Bruk Ab | Symmetrical lockable latch. |
-
1989
- 1989-06-16 SE SE8902167A patent/SE463879B/en not_active IP Right Cessation
-
1990
- 1990-05-14 FI FI902404A patent/FI89621B/en not_active IP Right Cessation
- 1990-05-23 DE DE9090850207T patent/DE69000496D1/en not_active Expired - Lifetime
- 1990-05-23 EP EP90850207A patent/EP0404743B1/en not_active Revoked
- 1990-06-15 NO NO90902674A patent/NO902674L/en unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2162425A1 (en) * | 1971-12-16 | 1973-06-20 | Kolb Kg Hans | BOLTLESS CYLINDER LOCK FASTENING |
DE2622816A1 (en) * | 1976-05-21 | 1977-12-01 | Schulte Schlagbaum Ag | Built in door lock cylinder securing piece - has snap action bridge shaped capping piece with channel for cylinder screw |
US4614374A (en) * | 1984-02-21 | 1986-09-30 | Lyon Metal Products, Incorporated | Recessed latch housing |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005095739A1 (en) * | 2004-04-01 | 2005-10-13 | Ruko A/S | A screw lock and use thereof |
Also Published As
Publication number | Publication date |
---|---|
EP0404743B1 (en) | 1992-11-25 |
SE8902167L (en) | 1990-12-17 |
FI89621B (en) | 1993-07-15 |
SE8902167D0 (en) | 1989-06-16 |
NO902674D0 (en) | 1990-06-15 |
FI902404A0 (en) | 1990-05-14 |
NO902674L (en) | 1990-12-17 |
DE69000496D1 (en) | 1993-01-07 |
SE463879B (en) | 1991-02-04 |
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