DE202012000211U1 - Device for burglar-proof closing of windows and doors - Google Patents

Abstract

Device for the burglar-proof locking of windows and doors, with drive rods movable by a manually operated bolt on which roller bolts are arranged, which in the locked state engage behind locking plates and are formed from a mushroom pin and a mushroom roller arranged on it, which can be moved together by means of a snap ring within a limited range connected are characterized in that the mushroom pin (19) and the mushroom roller (20) each have a circumferential groove (24/29) for at least partially receiving a snap ring (S) that the inner diameter of the mushroom roller (20) and the outer diameter of the mushroom pin (19) is constant outside of the groove areas (24/29) and that the snap ring (S) causes a positive locking of the mushroom pin (19) and mushroom roller (20) in the pull-out direction.

Description

The invention relates to a device for burglar-proof closing of windows and doors, with movable by a manually operable latch rods on which roller bolts are arranged, which engage behind closing plates in the closed state and are formed from a mushroom pin and a mushroom roller arranged thereon, by means of a snap ring with each other, within a limited range are movably connected.

Such devices are for example from the DE 20 2008 003 555 U1 known. Therein, roller bolts are disclosed, which are likewise formed from a mushroom pin and a mushroom roller, wherein the manufacture and assembly of the parts, in particular due to the necessary deformation of the parts during assembly, is very complex.

The object of the invention therefore is to provide a new device for burglar-proof closing of windows and doors, which, in particular as regards the roller bolt, is easier to manufacture and assemble.

The solution of the problem consists of the features of claim 1, in particular in the feature of the characterizing part, according to which the mushroom pin and the mushroom roller each have a circumferential groove for at least partially receiving a snap ring, that the inner diameter of the mushroom roller and the outer diameter of the mushroom pin outside the groove areas each remain the same is and that the snap ring in the extension direction causes a positive locking of mushroom pin and mushroom roller.

The solution according to the invention has various advantages over the prior art. On the one hand, in the solution according to the invention the snap ring has the function of a continuous height adjustment of mushroom pin to mushroom roll to guarantee and on the other hand it serves in the maximum extension position of the roller bolt as a lock (pull-out protection) of mushroom roller and mushroom pin.

In addition, there is the advantage that over the prior art, the production of mushroom roller and mushroom pin is cheaper, since the inner diameter of the mushroom roller and the outer diameter of the pin outside of the respective groove is constant.

Furthermore, due to the above stated constant diameter, there is the advantage that due to the large sliding and guiding surfaces, the guidance of the mushroom roller on the mushroom pin is improved.

Another advantage of the solution according to the invention is that - in contrast to the prior art - during the assembly of the roller bolt no deformation of the mushroom roller or the mushroom spigot is necessary, so that at the same time the surface finishing of the parts is not damaged.

Finally, the device according to the invention also has the advantage that it is possible on the end face of the mushroom pin to arrange a recess provided with a bowl surface, since the end face is not deformed during assembly.

In one embodiment of the invention, the arranged in the mushroom roller groove for the purpose of locking mushroom pin and mushroom roller in the maximum extension position on the inner peripheral surface transitioning 1. inclined surface which serves the positive locking of mushroom pin and mushroom roller in the extension direction and arranged in the mushroom pin Groove is provided with a second inclined surface, by means of which the snap ring is automatically widened during the movement of the mushroom roller in the direction of insertion and pressed outwards into the groove of the mushroom roller.

This arrangement of the snap ring in the region of the arranged in mushroom roller and mushroom pin grooves is achieved in a very simple and effective manner that the snap ring not only makes a continuous height adjustment of the mushroom roller on the mushroom pin possible, but also serves as a pull-out protection.

In a further embodiment of the invention, an angle between the second inclined surface and a longitudinal center axis of the shaft of the mushroom roller is so small that no self-locking occurs between the surface of the snap ring S and the second inclined surface.

Further advantages of the invention will become apparent from the following descriptions of an embodiment. Show it:

1 a frontal view of an open window,

2 an enlarged partial view of a window according to 1 when closed,

3a to 6b Representations of roller bolts in different operating situations and

7 to 14 Representations of the assembly steps of a roller bolt,

In the drawings, an apparatus for burglar-proof closing of windows and doors is generally indicated by the reference numeral 10 designated.

In the 1 is a window consisting of a window frame 11 and a casement 12 shown, wherein the latter is in the open position, so that in plan view a device 10 to recognize the burglar-proof closing of the window. The device 10 for the burglar-proof closing of windows is according to 1 from a hand-operated latch 13 , a drive rod 14 and two roller bolts arranged thereon 15 formed, which in the closed state (see also 2 ) Strike plates 16 engage behind. The roller bolt 15 is each with the drive rod 14 riveted, whereby by the eccentric bearing on the change of the position of the roller bolt 15 a Andruckverstellung is possible.

From the 2 In addition, it can be seen that the drive rod (transport rail) 14 with a cover rail 17 is provided, which is a slot 18 having.

Due to the movement of the window bolt 13 in the closed position are over the drive rod 14 the roller bolts 15 in a the strike plates 16 engaged position.

In detail, the structure of the roller bolt 15 in the 3a ff. represented. The roller bolt 15 is made from a mushroom cone 19 and a mushroom roll 20 educated. The mushroom cone 19 has a collar bolt 21 on, at its one end with the drive rod 14 is riveted and at its other end with a flange 22 is provided, which in a shaft 23 passes on the mushroom roll 20 is slidably mounted.

The mushroom roll 20 is from the flange 22 of the mushroom plug 19 groundbreaking provided at its end with a collar K, which in the closed state of a window on the window frame 11 arranged strike plate 16 engages behind.

The shaft 23 has a groove 24 for receiving the snap ring S and an end face 25 on, with a keyed recess 26 is provided.

The mushroom roll 20 is with an inner peripheral surface 27 on an outer peripheral surface 28 of the shaft 23 stored. The inner peripheral surface 27 the mushroom roll 20 also has a groove 29 on, which serves to support a spring steel existing snap ring S.

It should be noted that the mushroom cone 19 is constructed eccentrically, that is, the longitudinal center axes L _{1 of} the shaft 23 and the longitudinal center axis 12 of the collar bolt 21 have a distance a (s. 3a ), so that by a rotational movement of the roller bolt 15 , By means of a tool, not shown in the area provided with key surfaces depression 26 , a change in the position of the mushroom roll 20 is made possible in the room.

Essential for the functionality of the roller bolt 15 are the embodiments of the groove 29 the mushroom roll 20 as well as the groove 24 of the mushroom plug 19 , Like from the 3b and 4b can be seen, the groove 29 a circular section area 30 and an inclined surface 31 (Chamfer), wherein the groove depth t _{1 of} the groove 29 is slightly larger than a diameter d of the snap ring S.

From the 5b and 6b one can in particular the configuration of the groove 24 in the mushroom cone 19 detect. Again, the groove 24 first a circular section-shaped area 32 and an adjoining inclined surface 33 (Bevel), wherein the groove depth t _{2 is} only about half of the diameter d of the snap ring S.

In the 3a to 6b are exemplary different positions of the roller bolt 15 or the mushroom plug 19 to the mushroom roll 20 shown. While according to 3a the roller bolt 15 is retracted to a maximum, so has a minimal longitudinal extent, the mushroom roller 20 on the flange 22 is present, shows the 6a the maximum extension position of the roller bolt 15 , which of the form-fitting between the grooves 24 and 29 arranged snap ring S is defined.

Ultimately, out of the 4a and 5a Recognize intermediate positions, by the on the outer peripheral surface 28 of the mushroom plug 19 clamped arranged snap ring S the position shown is secured.

From the detail enlargements of 3b to 6b is the respective function of the snap ring S clearly visible.

The 3b shows the maximum retracted position of the roller bolt 15 , Here, the snap ring S completely immersed in the groove 29 and lies clamped on the outer peripheral surface 28 of the mushroom plug 19 at. In the slightly extended position of the roller bolt 15 according to 4a the situation is accordingly.

Another situation arises from the drawings 5b and 6b , It can be seen that the grooves 24 and 29 completely (s. 5 ) or according to 6b partly opposite. According to 5b It can be seen that the snap ring S already in the circular section-shaped area 32 the groove 24 is immersed, with the 6b represents the maximum pull-out position, in which the snap ring S not only in the area of the circular section 32 the groove 24 is arranged, but due to the additional attachment to the 1st inclined surface 31 (Bevel) is also secured in this position. This means that in addition attacking forces acting in the direction y (for example, in a break-in attempt) on the inclined surface 31 a force F _v acts on the snap ring S interlocking, so that a positive connection of mushroom pin 19 with the mushroom roll 20 is made, which can only be canceled by a destruction of the snap ring S or other components involved.

For the function of the roller bolt 15 is also the 2nd bevel 33 (Chamfer) of the groove 24 important, which - as in particular 8b shows - with movement of the mushroom roll 20 in the x-direction causes an automatic expansion of the elastic snap ring S, so that the snap ring S after a small insertion of the roller bolt 15 on the outer peripheral surface 28 of the mushroom plug 19 is mounted clamped. An angle α (s. 6b ) between the longitudinal central axis L ₁ and the inclined surface 33 (Bevel) must be so small that between the inclined surface 33 and the snap ring S no self-locking occurs.

In the 7 to 14 is ultimately the assembly of the roller bolt 15 shown.

One recognizes a device 34 for mounting a roller bolt 15 , consisting of a mounting pad 35 and a mounting block 36 , where the mounting block 36 an underside receptacle for the mushroom roll 20 and an overlying bore for receiving a conical sleeve 37 , The inner diameter of the conical sleeve 37 reduces towards the mushroom roll 20 and corresponds to the lower end of the conical sleeve 37 the inner diameter of the mushroom roll 20 , In the cone sleeve 37 the snap ring S is inserted and this with the help of a Einpressdornes 38 through the conical sleeve 37 through to the groove 29 moves, where there the snap ring S expands due to its elasticity and thus in the groove 29 is arranged.

According to 9 then becomes a cone pin 39 in the preassembled mushroom roll 20 inserted. The inner snap ring S is thereby additionally expanded elastically and gives way to the mushroom roller groove of sufficient size 29 out (s. 10 ). Subsequently, the mushroom roll 20 - as in 11 shown - with the conical mandrel pulled in 39 on the in the area of the mounting pad 35 standing mushroom pegs 19 put on, with the mushroom cone 19 existing sink 26 with key surfaces as a guide for the conical mandrel 39 located guide pin 40 serves.

Then, on this arrangement, as in the 12 to 14 shown, a mounting sleeve 41 put on which an internal bore 42 and a bottom side arranged pressure spring 43 having. By exerting a force F _m in the x direction ultimately becomes the mushroom roll 20 including snap ring S from the cone mandrel 39 on the shaft 23 the mushroom cone 19 pushed. This is the assembly of the roller bolt 15 completed.

LIST OF REFERENCE NUMBERS

10

contraption

11

window frame

12

casement

13

bars

14

Drive rod (transport rail)

15

roller pins

16

striking plate

17

cover rail

18

Long hole

19

mushroom pins

20

Pilz role

21

threaded stud

22

flange

23

shaft

24

groove

25

Face of 23

26

keyhole depression

27

Inner circumferential surface

28

Outer circumferential surface

29

Groove of mushroom roll

30

Circular section of the groove 29

31

1. inclined surface of the groove 29

32

Circular section of the groove 24

33

2. inclined surface of the groove 24

34

Installation auxiliary device

35

Montageunterfage

36

mounting block

37

cone sleeve

38

Mandrel

39

taper arbor

40

spigot

41

mounting sleeve

42

drilling

43

compression spring

Exceptional items

S

snap ring

K

Collar of mushroom roll

t ₁

Groove depth of 29

t ₂

Groove depth of 24

d

Diameter of the snap ring S

x

insertion direction

y

extraction direction

F _v

Latching force interacting with the snap ring

F _m

installation force

L ₁

Longitudinal axis shank

L ₂

Central longitudinal axis collar bolt

α

angle

a

Distance between L ₁ and L ₂

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 202008003555 U1 [0002]

Claims (3)

Device for the burglar-proof closing of windows and doors, with movable by a manually operable latch rods on which roller bolts are arranged, which engage behind closing plates in the closed state and are formed from a mushroom pin and a mushroom roller arranged thereon, by means of a snap ring with each other, within a limited range movable connected are characterized in that the mushroom pin ( 19 ) and the mushroom roll ( 20 ) each have a circumferential groove ( 24 / 29 ) for at least partially receiving a snap ring (S), that the inner diameter of the mushroom roll ( 20 ) and the outer diameter of the mushroom cup ( 19 ) outside the groove areas ( 24 / 29 ) is in each case constant and that the snap ring (S) in the extension direction a positive locking of mushroom pin ( 19 ) and mushroom roll ( 20 ) causes. Apparatus according to claim 1, characterized in that in the mushroom roll ( 20 ) groove ( 29 ) for the purpose of locking mushroom pins ( 19 ) and mushroom roll ( 20 ) in the maximum pull-out position into the inner peripheral surface ( 29 ) passing 1st inclined surface ( 31 ), the positive locking of mushroom pin ( 19 ) and mushroom roll ( 20 ) in the extension direction and that in the mushroom journal ( 19 ) groove ( 24 ) with a second inclined surface ( 33 ) is provided by the snap ring (S) during the movement of the mushroom roller ( 20 ) in the insertion direction (x) automatically expanded and out into the groove ( 29 ) of the mushroom roll ( 20 ) is pressed. Apparatus according to claim 2, characterized in that between the second inclined surface ( 33 ) and a longitudinal central axis ( 21 ) of the shaft ( 23 ) of the mushroom roll ( 20 ) is an angle (α) which is so small that no self-locking between the surface of the snap ring (S) and the second inclined surface ( 33 ) occurs.

Images