DE29610086U1 - Lock - Google Patents

Description

The invention relates to a lock according to the preamble of patent claim 1. This lock is further developed in that it includes a modular structure in such a way that completely assembled components such as the bolt package and latch package can be prefabricated outside the lock case. The individual packages are designed in such a way that they can be placed inside the lock case without additional screwing work. This type of assembly means that there are no pins in the lock case.

A door lock that can be operated from the inside and outside of a door using a handle is known from DE 40 26 080 A1. Locks of this type are well known and essentially consist of a lock case in which the mechanism for the bolt drive, triggered by the rotation of the profile cylinder, the latch actuation via the nut and other parts are contained. For proper operation, slide changes and tumblers are contained within the lock case, which are partially loaded by corresponding spring elements.

A lock with different keyhole distances is shown in the German utility model 82 33 051. Several keyholes are punched inside the lock case and the lock cover in order to take into account the variety of distances of inserted locks available on the market.

A lock which has a two-turn bolt drive and also contains a latch which can be rotated by 180° is disclosed in EP 0 308 354 A1.

In the German utility model G 93 15 664, an impact damping device is described for door lock latches and gate lock nuts. Here, the stop surface of the latch tail as well as the stop surface of the lock nut tail are dampened in such a way that in

There is a blind hole in both of them, between which a spring element is inserted. This means that the two components can no longer hit each other hard, because they are prevented from doing so by the spring or are limited to a certain extent. With this type of construction, it cannot be ruled out that noise pollution is still caused by the trap snapping forward.

A lock that includes a blocking device can be found in DE 28 04 603 C2. In this lock, the tumbler also blocks the bolt. The blocking device is activated every time the key is operated. A second key is not required for this, as is usually the case with the current state of the art. The automatic dependency between turning the key and the blocking device becoming effective activates a blocking unit consisting of small components. Any insertion forces that may occur against the head of the bolt or the deadbolt are transferred to the lock housing in a form-fitting manner. This measure means that the lock cannot be opened by force by shearing off the gate pin by pressing in the bolt or deadbolt.

The invention is intended to solve the problem of creating a lock which, with minimal inventory, is able to combine the most diverse types of locks and locking systems. In particular, the idea is to cover locks for swing doors, deadbolt locks, namely mortise locks and front door locks. The most diverse locking systems, such as warded locks, profile cylinders, Swiss round cylinders and bathroom access, must also be standardized.

The problem is solved according to the invention according to the characterizing part of patent claim 1. The lock consists of modular components that contain interchangeable parts. This modular structure has been designed in such a way that minimal storage is required. This means that the individual components are always identical.

cal components can be used, such as a bolt package or a latch package. Within the lock case and the lock cover, depending on the locking type, there are a wide variety of openings for warded locks, profile cylinders, Swiss round cylinders and bathroom access. By changing the lock case, a different locking type can be selected, which means that the components contained within the lock case are completely identical. This applies to all locking types, whereby a different bolt package is only used if a two-turn bolt closure is required. The bolt package and the latch package have been designed in such a way that they can be completely mounted outside the lock case without the spring elements used here for proper function jumping out of the individual packages. There are no pins inside the lock case to fix the bolt package and the latch package. Instead, there are spacers on the locking plates and on the latch base plate, which are inserted into holes in the lock case with a protruding edge. After inserting the latch assembly and the locking assembly, the lock case can be closed with the lock cover. To do this, only three screw connections need to be made on the side.

Further features essential to the invention are contained in the subclaims.

The trap base plate has the option of providing the trap tail with permanent lubrication. This is achieved by having lubrication grooves underneath, i.e. in the area where the trap tail contacts the base plate, which are filled with a suitable lubricant. When the trap tail slides over it, it is permanently lubricated.

The trap is designed so that it can be quickly replaced using a plug connection. This also shows the modular design, because the trap can be rotated by 180° and also offers the possibility of using differently designed traps thanks to the type of connection.

This lock also takes the user into consideration, so that no annoying noises are caused when the latch is extended. This is achieved by having a stop almost at the end of the latch tail, which interacts with a stationary stop pin contained within the latch package in such a way that the stop pin is equipped with a buffer. This buffer can, for example, be designed in the form of a rubber ring. When the stop hits the rubber buffer, the latch extension is limited and at the same time metal is prevented from hitting metal. This measure ensures that no additional noise nuisance emanates from the lock.

Another feature of the trap tail is that the spring force required to propel the trap is provided by a spring that is embedded in a spring chamber in the trap base plate. The spring is supported at one end within the chamber and at the other end against a projection on the trap tail.

In accordance with the concept of the invention, a bolt package with a single-turn bolt drive and simultaneous automatic bolt blocking is also part of the modular lock.

By using a driver, it is possible to simultaneously block the bolt in the locked position against being pushed back by force when the bolt is being released. The entire prefabricated mechanism is located on a locking plate, both for the bolt release and for the bolt blocking. Within a guide track, the bolt tail is guided in a horizontal plane using a pin, which is preferably used. On the other hand, the bolt finds further guidance in an opening within the stud. The bolt, which is supported at two points in this way, is able to ensure a clean, sliding horizontal movement.

to carry out the horizontal movement of the bolt. On the bolt tail there is a driver pocket, which is necessary to carry out the horizontal movement due to the rotary movement of a driver with a driver pin attached to it. The aforementioned driver slides due to a molded projection within a guide track, which is arranged in the shape of a circular arc. The end of the guide track simultaneously causes the end of the bolt's extension or the position that the bolt assumes when it is locked. On the same side where the driver's projection is located, the driver pin is also molded, which interacts with the driver pocket of the bolt tail in such a way that the movement on the circular arc path can cause the bolt to close. The circular arc path is designed in such a way that it allows a certain distance to both sides starting from the center of the locking cylinder. This ensures that the driver remains safely in a locked position and that it also remains safely in the open position of the bolt when the bolt is released.

At the same time, the driver is also loaded by a spring, one end of which is attached to the locking plate and the other end of which has a rounded section that engages in a first or second notch within the driver. The first notch represents the position of the blocked bolt and the second notch represents the position when the bolt is retracted.

If the bolt is now moved out of the closed position, the driver pin on the driver transports the bolt into the locked position as a result of engaging in the driver pocket. The bolt stops at the angle at which the driver pin leaves the driver pocket. This is also the position in which the bolt is automatically blocked. This is achieved by the driver pin now being outside the driver pocket and a stop surface, which is located next to the driver pocket on the bolt tail, being automatically pressed against the driver pin when pressure is applied to the bolt. Because the driver is outside the center of the locking cylinder,

it is within a dead point and cannot be pushed out of this position by the force that is applied. At the same time, however, the bolt is "jammed" or "blocked", so that the forces acting on the bolt are passed on to the fastening of the bolt plate and are thus simultaneously absorbed by the lock case.

As the description above shows, an automatic blocking is brought about each time the bolt is released.

In addition to the single-speed bolt drive, a two-speed bolt drive can also be implemented according to the inventive concept.

Both the single-turn and the double-turn bolt package use a lower change as a corresponding element, which interacts with an upper change on the latch package. If the bolt is locked by operating the key used in conjunction with the locking method, the latch is simultaneously drawn into the cover via the lower change in conjunction with the upper change. Independently of the bolt being operated by a key, the latch can of course be drawn into the lock housing by operating the nut.

The inventive idea leads to an enormous simplification through the use of modular assemblies, because a completely different lock can be created simply by exchanging a few parts. In order to be able to manufacture the modular lock cost-effectively, the locking plate and the latch base plate, as well as all other possible parts, are manufactured using the investment casting and/or die-casting process.

In addition to the interchangeability of the latch, the bolt is also not molded onto the bolt tail. Rather, this can also be replaced by a simple plug-in connection depending on the intended use.

The invention is explained in more detail using schematically illustrated possible embodiments. It shows:

Figure 1: Single-turn lock complete

Figure 2: Failure package

Figure 3: Trap base plate

Figure 4: Failen tail with trap head

Figure 5: Single-turn locking package

Figure 6: Latch base plate

Figure 7: Lock case for profile cylinder

Figure 8: Two-turn lock complete

Figure 9: Two-turn locking package

Figure 10: Bolt base plate for two-speed bolt advance

Figure 10a: Latch base plate as in Figure 10, but in side view

Figure 11: Two-turn bolt

Figure 12. Locking

Figure 13: Two-turn lock with locked bolt

The mortise lock shown in Figure 1 shows the modular construction of the inventive concept. In a lock case 4, a bolt assembly 5 and a latch assembly 26 can be seen, which are not fixed with any screws or pins inside the lock case. The outer closure to the locking edge is formed by a slip-on cover. A bolt 3 and a latch 2 can be excluded from the slip-on cover 1.

In order to make the modularity of the present lock clearer, we first turn to Figure 2. Here, the latch assembly 26 is shown as an individual component, as it can be pre-assembled and fully functional outside the lock case 4. All the components required for the latch function are mounted on a latch base plate. A nut 9 with a door handle dome holder located therein is held in the starting position by a spring chain 10, which continues into a spring 17. The spring 17 is connected at one end to a spacer located on the latch base plate 33. In the direction of movement of the latch 2, there is a latch tail 32 connected to the latch 2. The latch 2 is designed in such a way that it is replaceable, namely it is connected to the latch tail in a force-locking and form-locking manner by a pin 21. To ensure that the latch tail can move smoothly within the latch assembly, permanent lubrication has been integrated into the latch base plate 33. The permanent lubrication essentially consists of two lubrication grooves 18, 19 located in the latch base plate 33, over which the latch tail 32 slides. A suitable lubricant is inserted within the lubrication grooves 18, 19, which ensures that the latch functions reliably over a long period of use.

A spring 75 is provided so that the latch tail 32 can also hold the latch in the basic position, namely pushed out of the cover 1. The spring 75 is supported within a spring chamber 20 at the spring chamber end 73 and at the other end against a spring counter bearing 30 on the latch tail 32. In addition, there is a stop 22 on the latch tail 32, which fulfills two tasks. Firstly, when the pusher (not shown) is operated via the nut 9, a

9 molded driver 76 is pivoted so that it comes into contact with the stop in such a way that the latch tail 32 with the connected latch 2 is simultaneously transported into the lock case 4. If the handle is now released again, the nut 9 automatically returns to its basic position due to the existing spring chain

10 and the associated spring 17. The nut 9 finds a stop in a spacer 15.

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However, so that the latch tail 32 also finds a defined starting point, the stop 22 has been used at the same time as a position holder for the extended latch 2. One side of the stop 22 comes into contact with a stop pin 29. The stop pin 29 is designed as a buffer to dampen noise, i.e. a damping means 23 is fixed around the stop pin 29. If the latch 2 now moves out of the cover 1 with the latch tail 32, this path is automatically limited by the stop 22 moving silently against the damping means 23. In an embodiment of the inventive idea, the damping means 23 on the stop pin 29 can also be dispensed with here, but in this case the stop 22 must be provided with a means for dampening the impact in the area where it comes into contact with the stop pin 29. A rubber pad can serve as the damping means 23, for example.

As the present description makes clear, the same latch package 26 is always used for all available types of lock. If different latches 2 are used, these can easily be exchanged for other latches that have a different geometric design. This is also made clear in Figure 4, where the latch tail 32 is shown separately with the latch 2. The latch 2 has a latch shaft 34 on its non-visible part, which is preferably round in shape. Inside the latch shaft 34 there is a hole 35 that is used to insert the pin 21 through the hole 35 in order to insert the latch shaft 34 in a force-fitting and form-fitting manner inside the latch tail 32. In order to also protect the latch 2 against twisting, lugs 36 are formed in the area where the latch shaft 34 merges into the latch head, which prevent the latch 2 from twisting. At the same time, a change stop 72 is formed on the latch tail 32. This change stop 72 serves, on the one hand, to allow the latch to be retracted at the same time when operated by a key. On the other hand, this change stop 72 also simultaneously provides the limit for the retraction of the latch 2, namely in such a way that the change stop 72 also comes to rest against the stop pin 29.

Let us turn once again to the latch base plate 33, which has been shown separately in Figure 3. In addition to the already mentioned lubrication grooves 18, 19 and the spring chamber 20, the latch base plate 33 has spacers 14, 15, 24. These spacers serve to ensure that the latch assembly 26 is fixed within the lock case 4 or lock cover.

The trap base plate 33 as well as the trap tail 32 can be manufactured from pressure-pressure casting.

Another module is a bolt package 5, which is shown in the figure. The bolt 3 is connected to a bolt tail 16. The bolt tail 16 is guided by a pin 74, which can slide back and forth in a bolt guide groove 42. The bolt is driven forward by operating a driver 6 via the inserted locking cylinder or via the warded key. The driver 6 has a driver pin 78, which engages in a driver pocket, which is present on the bolt tail. The driver 6 also carries out a movement along an arc by turning the key, with the driver being held in the two possible positions, namely bolt retracted and bolt extended, by a spring 37. In these two positions, the spring 37 engages in recesses 39, 40, which are located on the driver 6. At the other end, the spring 37 is fixed to a support 38 which is located on the locking plate 41.

For clarity, the locking plate 41 is also shown again as an individual component in Figure 6. The driver 6 is guided on the driver guide 43, which is located inside the locking plate 41. The locking plate 41 has an opening 79, which serves to make the most diverse locking types possible. This means that profile cylinders, warded cylinders, Swiss cylinders, etc. can be used here. The locking plate 41 is fixed inside the lock case 4 via spacers 11, 12, 13, which are again designed in their end areas in such a way that precise fixing inside the lock case 4 is achieved.

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The functional connection between the individually pre-assembled packages, namely the bolt package 5 and the latch package 26, is achieved by means of a change. For this purpose, a lower change 7 is located on the bolt tail 16, which interacts with an upper change 8, which is pivotally mounted on a pivot point 27 and is located on the full base plate 33. The end of the upper change 8 engages the change stop 72 and can thus cause the latch tail 32 to be retracted.

In order to be able to use the prefabricated modules such as the bolt package 5 and the latch package 26 within the lock case 4, the lock case 4 has mounting holes 44, 45, 47 for the latch package 26 and mounting holes 48, 49, 51 for the bolt package 5. This design of the fixation of the individual modules means that this lock can be manufactured without a mandrel. This type of fixation greatly reduces the assembly time for such a lock. Only for the most varied versions of the locking type do different cylinder mounts 50 have to be inserted into the lock case 4. These are based solely on their geometric dimensions. The latch package 26 is also guided in the area of the nut at the same time, with the projection on the nut on each side engaging in a mounting hole 46 for the nut. To ensure the latch is operated safely, there is a latch recess 53 inside the lock case 4. The lock case 4 must now be closed with a lock cover, which is achieved by connecting both the lock cover and the lock case 4 to one another via a screw connection using angles 52. If the lock case 4 is screwed onto the lock cover, the lock is functional.

In an embodiment of the inventive concept, Figure 8 shows another type of lock, namely a two-turn bolt drive. The same latch assembly 26 has been used here as was already described in detail in the description of the previous single-turn lock. Since there are two-turn locks in addition to single-turn locks, which is due to the fact that the bolt throw must be larger, a different type of lock is required.

A fixed locking package 60 is necessary. This locking package 60 is built on a locking plate 64. There is a pin 57 on the locking plate 64, which serves to safely guide the locking tail 56. Within the locking plate 64, as previously with the single-turn version, there is also a locking cylinder opening 66 in order to accommodate a wide variety of locking cylinders. Spacers 11, 12, 13 are also molded onto the locking plate 64, which engage with their fixing projections 68, 69 in the receiving holes 48, 49, 51 shown in Figure 7. There is also a guide 65 on the locking plate 64 to guide the locking tail 56.

When the locking cylinder is operated, a tumbler 54 is raised, which is simultaneously guided within a guide 63. By raising the tumbler 54, which is pressed into its basic position by a spring 61, the bolt 3 can be locked by one turn. The spring 61 is held on a spring holder 67, which is located on the bolt plate 64.

In order to achieve further bolt closure, guide tracks 55 are provided on the bolt 3 with the adjoining bolt tail 56 for changing and on the opposite side there are drive pockets 62 for operating the locking cylinder. Inside the bolt tail 56 there is a guide track 55 through which the fixed pin 57 passes and thus also limits the bolt stroke. The bolt tail 56 is guided via a guide groove 70, which interacts with the guide 65 of the bolt plate 64.

In the illustration in Figure 12, the tumbler 54 is shown again as an individual part. In order to safely manage the stroke of the tumbler 54, there is an elongated hole 71 through which the pin 57, which already guides the bolt tail 56, also passes. The retaining lug 58 formed on the tumbler 54, in conjunction with the guide tracks 55 of the bolt tail 56, causes the tumbler to be locked and thus tensions the bolt 3 after it has been released.

The illustration in Figure 13 shows the lock described above in the two-turn version with the bolt 3 locked out.

Reference symbol Slipcover 1 Cases 2 bars 3 Lock case 5 4 Bar package 5 Driver 6 Lower change 7 Upper change 8th Nut 10 9 Spring chain 10 Spacers 11 Spacers 12 Spacers 13 Spacers 15 14 Spacers 15 Bar tail 16 Feather 17 Lubrication groove 18 Lubrication groove 20 19 Spring chamber 20 Pen 21 attack 22 Damping agent 23 Spacers 25 24 Spring bearing 25 Trap package 26 pivot point 27 Handle spindle holder 28 Stop pin 30 29 Spring counter bearing 30 Driver 31 Faerie tail 32 Trap base plate 33 trappings 35 34

35 drilling 36 Approach 37 Feather 38 Support 5 39 indentation 40 indentation 41 Bar plate 42 Latch guide groove 43 Carrier guide 10 44 Mounting hole 45 Mounting hole 46 Mounting hole nut 47 Mounting hole 48 Mounting hole 15 49 Mounting hole 50 Cylinder mount 51 Mounting hole 52 Angulation 53 Faienschwanz exception 20 54 Locking 55 Guideway 56 Bar tail 57 Pen 58 retaining lug 25 59 indentation 60 Bar package 61 Feather 62 Carry-on bag 63 guide 30 64 Locking plate 65 guide 66 Lock cylinder breakthrough 67 Spring holder 68 Fixation approach 35 69 Fixation approach • · · · . ·» · *« .**.
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70 Guide groove 71 Long hole 72 Interchangeable stop 73 Spring chamber end 5 74 Pen 75 Feather 76 Driver 77 Nut intake 78 Driving pin 10 79 breakthrough 80 Stop surface 81 Guideway 82 head Start

Claims (21)

Expectations 1. Door lock with a latch that can be operated from the inside and outside of a door using a handle via a nut, a bolt and conventional locking mechanisms arranged in a lock case, characterized in that the lock consists of modular components that are essentially composed as follows: Lock case (4) fully assembled locking package (5, 60) - fully assembled latch package (26) replaceable locking cylinder insert or warded keys!, or
Bathroom cell access. 2. Door lock according to claim 1, characterized in that the bolt assembly (5, 60) and the latch assembly (26) are held in receiving bores (44, 45, 47, 48, 49, 51) of both the lock case (4) and the lock cover via molded-on spacers (11, 12, 13, 14, 15, 24). 3. Door lock according to claim 2, characterized in that the molded spacers (11, 12, 13) are located on a locking plate (41, 64) and the spacers (14, 15, 24) are located on a latch base plate (33). 4. Door lock according to claim 3, characterized in that in the latch base plate (33) for permanent lubrication of the latch tail (32) Lubrication grooves (18, 19) are present. 5. Door lock according to claims 1, 2 and 4, characterized in that the latch (2) is replaceable and can be used offset by 180°. 6. Door lock according to claims 1, 2 and 4, characterized in that a stop (22) is provided on the latch tail (32) which cooperates with a stop pin (29). 7. Door lock according to claim 6, characterized in that the stop pin (29) is provided with a damping means (23). 8. Door lock according to claims 1 to 6, characterized in that the ejection spring of the latch (2) is supported at one end against a spring counter bearing (30) which is located on the latch tail (32) and at the other end against a spring chamber end (73) of a spring chamber (20), the spring chamber (20) being located within the latch base plate (33). 9. Door lock according to claims 1 to 3, characterized in that a bolt guide groove (42) is present in the bolt plate (41), into which a pin (74) present in the bolt tail (16) engages. 10. Door lock according to claims 1, 3 and 9, characterized in that the rotation of the key pivots a driver (6), the driver pin (78) of which engages in a driver pocket (62) provided in a bolt tail (16) for driving the bolt, and rests against a stop surface (80) of the bolt tail (16) when the bolt (3) is extended. 11. Door lock according to claim 10, characterized in that the driver (6) has a projection (82) adapted to a guide track (81). 12. Door lock according to claim 11, characterized in that the guide track (81) lies on a circular arc and extends over the center of the locking cylinder. 13. Door lock according to claims 10 and 11, characterized in that the driver (6) is held in its end positions by a spring (37). -18- 14. Door lock according to claims 1 and 2, characterized in that a bolt assembly (60) is used for a two-turn bolt drive. 15. Door lock according to claim 3, characterized in that the The locking plate (41, 64) and the latch base plate (33) are made of investment casting. 16. Door lock according to one or more of the preceding claims, characterized in that the bolt is actuated by a ward key. 17. Door lock according to one or more of the preceding claims, characterized in that the bolt is actuated by a profile cylinder. 18. Door lock according to one or more of the preceding claims, characterized in that the bolt is actuated by a Swiss round cylinder. 19. Door lock according to one or more of the preceding claims, characterized in that the locking mechanism for bathroom cells is operated by installing an insert. 20. Door lock according to claims 16 to 19, characterized in that a suitable opening is provided in the lock case (4) and in the lock cover for the selected locking type. 21. Door lock according to one or more of the preceding claims, characterized in that the locking assembly (5, 60) and the latch assembly (33) are mounted outside the lock case (4).