DE102004004566B4 - lock - Google Patents

Abstract

Locking unit preferably for flaps, in particular in the form of hinged daylight elements with:
a base body (1; 21) having a slot (2) for receiving a locking bracket (11) and an obliquely arranged to the slot (2) slot (3);
a claw washer (4) pivotally mounted on the base body (1; 21) and having a claw (5) rotatable in the slot (2) of the base body (1; 21) to engage the locking bracket (11) in the slot (2) of the main body (1; 21) to catch;
a slidably disposed in the slot (3) actuating element (6),
wherein the claw washer (4) is held in the closed position by a spring force, and by displacing the operating member (6) in the slot (3) and running it on a ramp surface of the claw washer (4) or one with the claw washer (4) in operative connection standing member (10) is pivoted to an open position in which the claw (5) releases the locking bracket (11), ...

Description

The The present invention relates to a locking unit for flaps For example, of hinged daylight elements, as well as on a Valve system, such as a light band or dome flap system.

Known Rooflight and skylight flap systems have individual flaps or roof windows on, for example, in industrial buildings daylight to get from the top. The flaps of the light bands or Skylight domes normally hinged to provide ventilation of the building or to ensure a smoke outlet. To do this these flaps over two separate drive units for opening the flap. The first Drive unit is used for ventilation of the building, for which the flap is opened only a small gap. The second drive unit is used to fully open the Flap, for example, in the case of a fire remove the smoke to let or at high temperatures large quantities of warm air from the building dissipate.

As in 10 is shown, the locking system with an axially displaceable locking pin 50 provided, which is arranged on the flap frame or on the building and in a arranged on the flap locking block 60 intervenes. Here is the locking bolt 50 via a locking groove 51 and a spring-loaded locking pin (not shown) in the locking block 60 secured. By axial displacement of the locking bolt 50 over the first drive unit 70 Now the flap can be opened by a small gap.

Furthermore, the flap with a second drive unit 72 provided obliquely on the locking block 60 attacks. If now the flap is to be fully opened, the locking bolt 50 first unlocked by the second drive unit 72 about her actuator 71 the spring-loaded locking pin of the locking block 60 against the spring force from the locking groove 51 of the locking bolt 50 moved out. Thereafter, the flap by further moving the actuator 71 continue to be fully opened.

When closing the flap over the second drive unit 72 becomes the actuator 71 moved in the opposite direction, whereby the flap is moved in the closing direction. To lock moves a conical tip 52 of the locking bolt 50 the spring-loaded locking pin of the locking block 60 so far that the locking bolt 50 can be inserted into the locking block. Thereafter, the locking pin again comes into engagement with the locking groove by the spring force 51 of the locking bolt 50 ,

Due to thermal expansion of the materials or due to manufacturing tolerances, the locking bolt is aligned 50 but not always exactly with the opening in the lock block 60 , This may result in the flap being unable to properly close or the locking pin 50 being bent while attempting to close the flap anyway.

For maintenance purposes, the flap must be manually every six months via a pull rope 73 ( 11 ) unlocked to unlock the locking pin, then opened and closed again. When closing, however, possibly a residual force of the second drive unit 72 counteracts the closing operation, for example when the second drive unit 72 having a pneumatic cylinder in which there is still a residual pressure. The counterforce of the pneumatic cylinder then causes the locking pin of the locking block 60 over the actuator 71 the second drive unit 72 is pressed. A secure engagement of the locking pin in the locking groove 51 of the locking bolt 50 can not be guaranteed under these circumstances.

FR 2 539 175 discloses a locking unit for a vehicle door having a base body having a slot and a spring loaded claw washer for catching a bolt entering the slot.

DE 198 45 125 B4 discloses a locking unit for a vehicle door having a base body and a claw washer which is spring loaded in the opening direction and a pawl for holding the claw washer in a closed position.

The Object of the present invention is to provide a improved locking unit and an improved flap system, which avoid the disadvantages of the prior art. Especially should the daylight element even with temperature fluctuations and possibly existing Manufacturing tolerances safely opened / closed and can be locked / unlocked without jamming. In addition, should ensures a secure locking even with manual closing be.

The The object is achieved by a locking unit according to claim 1 and a flap system according to claim 6 solved. Advantageous developments of Invention are in the dependent Claims cited.

The Locking unit according to the invention is preferably for used hinged daylight elements and has the following components: a basic body, the one slot for the inclusion of a locking bracket and an obliquely arranged to the slot Has slot; a claw washer pivotally mounted to the body is and has a claw, which is in the slot of the body inside is rotatable to the locking bracket in the slot of the body to catch or fix; a slidably disposed in the slot Actuator for example in the form of a bolt, wherein the claw disk through Spring force is held in the closed position and through Move the actuator in the slot and running it on a ramp surface of the Claw or one of the claw in operative connection Elements in an open position is pivoted, in which the locking bracket is released.

Of the locking clip has both in the slot of the body and in the claw the claw disk a big one Game. This allows relative shifts of the components due to thermally induced changes in the dimensions of Components or due to manufacturing tolerances are compensated.

Preferably The locking unit further comprises a connecting rod for connecting the displaceable actuating element with a drive unit. The end of this connecting rod can be either as a clevis or be designed as eyebolts.

Preferably The locking unit further comprises a maintenance slider for blocking the actuating element in a position spaced from the claw washer. Even if the Drive unit when manually closing the flap, for example due to residual pressure remaining in a pneumatic cylinder generates a counter force, this service slide prevents that the actuator moved in the proximal direction of the slot, creating a secure Snap the locking unit would be prevented. Of the Maintenance slide can be in the path of the manual closing of the flap actuating element be moved and guaranteed a secure engagement of the claw in the locking bracket, there a possible counterforce of the drive unit received via the service slide becomes. About that In addition, this maintenance slide can be designed so that he has an abutment surface, to which the locking bracket abuts and the Lock the locking unit the maintenance slide in his Retracts rest position.

Of the Maintenance slide is preferably rotatably mounted on the base body, However, it can also be slidably mounted.

To the secure engagement of the locking bracket in the claw of the claw washer is either the claw disc itself provided with a spring, the this in the closing direction rotates or it is a pivotable spring-loaded latch to the in Engage with the claw washer in its closed position arranged. In the second case, the claw disc rotates either by gravity into the open Position or is additional still with an opening spring Mistake.

The The present invention also relates to a flap system with the just described locking unit.

Preferably Such a flap system comprises a first drive unit which the flap opens by moving the locking clip without unlocking the locking unit.

The first drive unit preferably has a Elektrohubspindelmotor on, for example, operated with 220V and the opening of the flap can regulate continuously.

Of Furthermore, the flap system preferably has a second drive unit on, which unlocks the flap by moving the actuator and causes the opening of the flap by further displacement.

The second drive unit preferably comprises a pneumatic cylinder which can be operated with CO ₂ gas or another inert gas. This allows the flap to be opened quickly in an emergency quickly.

following The invention will be explained in more detail with reference to various drawings.

1 shows an exploded view of a first embodiment of the present invention;

2 shows the operation of opening the locking unit of the first embodiment;

3 shows the operation of closing the locking unit of the first embodiment in the operation of the second drive unit;

4 shows the process of manually closing the locking unit of the first embodiment;

5 shows the locking unit of the first embodiment in the assembled state;

6 shows an exploded view of a second embodiment of the present invention;

7 shows the operation of opening the locking unit of the second embodiment;

8th shows the process of manually closing the locking unit of the second embodiment by means of the maintenance slide;

9 shows the locking unit of the second embodiment in the assembled state;

10 shows a locking unit according to the prior art; and

11 shows the locking block of the locking unit 10 in the plan view.

In a first preferred embodiment of the invention, which in the 1 to 5 is shown, the base body 1 the locking unit on a two-part housing, in which a claw washer 4 is rotatably mounted. A claw 5 the claw disk 4 can by turning the claw disk 4 in a slot 2 of the basic body 1 be pivoted, creating a locking bracket 11 can be taken or released. The locking bracket 11 is preferably made of round steel with a diameter in the range of 6 to 15 mm, most advantageously with a diameter of 8 mm.

The slot 2 of the basic body 1 can, as in 1 narrowed to its closed end, but can also have a constant width. The width of the slot 2 of the basic body 1 as well as the claw 5 the claw disk 4 is each sized so that the locking bracket 11 has a big game. This ensures that the locking bracket 11 even with distortion of the components due to temperature fluctuations safely in the slot 2 and the claw 5 is recorded.

By pivoting the claw washer 4 becomes the locking latch 11 in the slot 2 of the basic body 1 fixed, whereby the locking unit is lockable. This is the claw disc 4 by a spring-loaded pivoting latch 10 secured in the locking position, in the housing of the body 1 is rotatable and with a hook nose 10a in a latch 4a the claw disk 4 intervenes.

The bolt 10 is preferably made as a casting, but may also be milled or forged. The bolt 10 can also be designed as a so-called double bar, in which two hooked noses 10a are provided in two latches 4a the claw disk 4 intervention. This double bar can be constructed instead of the one-piece design of two separate bars.

Furthermore, the bolt has 10 over an inclined ramp surface 10d on his second thigh, on the one in a slot 3 of the basic body 1 guided actuator in the form of a bolt 6 can run when this in the slot 3 of the basic body 1 is moved in a proximal direction. By the emergence of the bolt 6 on the sloping ramp 10d of the bolt 10 this is a pivoting movement (in 2 counterclockwise) causing the engagement between the hook nose 10a of the bolt 10 and the latch 4a the claw disk 4 is solved, how out 2 B is apparent.

Hereinafter, the function of the locking unit based on the 2 to 4 explained in more detail.

2 shows the opening operation of the locking unit by means of the second drive unit. In 2a is shown the closed position of the locking unit, wherein the locking bracket 11 in the slot 2 of the basic body 1 picked up and through the claw disk 4 in the slot 2 is fixed. The claw disc 4 is in turn by the bar 10 about the engagement of the hook nose 10a with the latch 4a secured against twisting in the opening direction. The bolt 10 is held in this position by a spring (not shown).

If now, as in 2 B shown, the bolt 6 over the connecting rod 7 from the second drive unit along the slot 3 to the proximal end of the body 1 is moved (arrow 1), the bolt is running 6 on the sloping ramp 10d of the bolt 10 on. This will be the bar 10 around his fulcrum 10e Turned counterclockwise as shown by the arrow 2, whereby the engagement between the hook nose 10a of the bolt 10 and the latch 4a the claw disk 4 is solved. Now the claw disk can 4 turn freely as indicated by the arrow 3 in 2c is shown.

If the second drive unit is the connecting rod 7 moved further towards the locking unit, the now released Ver locking bar out of the slot 2 of the basic body 1 come out as through the arrow 4 is shown.

The flap can now be fully opened because the engagement between the attached to the flap locking unit and attached to the flap frame locking bracket 11 is solved, like this 2d shows.

3 shows the closing operation of the flap by means of the second drive unit. As in 3a shown, the drive unit pulls the connecting rod 7 back (arrow 1 ), whereby first the bolt 6 in the slot 3 to the distal end of the slot 3 emigrated. This will be the engagement of the bolt 6 with the sloping ramp 10d of the bolt 10 which now rotates clockwise through the spring (not shown) and returns to its rest position. This is the claw washer 4 but still in the open position either by their own gravity or by conditioning a claw leg 4b at the hook nose 10a of the bolt 10 or also by a spring.

If then the locking bracket 11 , as in 3b shown by the closing movement of the flap in the slot 2 the locking unit 1 enters, the locking bar abuts 11 against the claw leg 4b the claw disk 4 and thereby turns them into the closed position. Once the claw disk 4 reaches the closed position, pivots the spring-loaded latch 10 in a clockwise direction and enters with its hooked nose 10a in engagement with the pawl 4a the claw disk 4 , as in 3c is shown.

4 shows the manual closing operation of the locking unit 1 , The first thing is the bolt 6 either via a (not shown) pull rope or by a short manual opening movement of the flap brought into its distal position, as in 4a shown. If, as in 4b and 4c shown, the locking bracket 11 in the slot 2 the locking unit 1 enters, the locking bar abuts 11 again on the claw leg 4b the claw disk 4 and thereby turns them in the closed position. Once the claw disk 4 reaches the closed position, pivots the spring-loaded latch 10 in a clockwise direction and enters with its hooked nose 10a in engagement with the pawl 4a the claw disk.

Hereinafter, a second embodiment of the invention with reference to 6 to 9 explained.

In this embodiment, the base body 21 from a plate, with two claw discs 4 are provided on the opposite sides of the plate 21 located either in one piece or in two parts. The plate 21 has just like the main body 1 of the first embodiment, a slot 2 and a slot 3 for receiving an actuating element in the form of a bolt 6 , However, no bolt is provided here and instead is the claw washer 4 itself spring loaded and also has itself on the ramp surface 4a for the opening operation of the locking unit over the bolt 6 ,

In addition, the slot points 2 the locking unit two guide legs 2a on, the safe insertion of the locking bracket 11 in the slot 2 guarantee. In addition, this locking unit is equipped with a maintenance slider 8th provided, which is either rotatable or displaceable on the base body 21 is provided and manually in the path of the bolt 6 can be pushed to secure it in the distal position. In this way, a secure engagement of the locking unit can be ensured. Furthermore, the service slider has 8th over an abutment area 8a when closing on the locking latch 11 abuts and thereby the maintenance slide 8th moved to its resting position.

The function of the locking unit of the second embodiment will be described below with reference to FIG 7 and 8th explained in more detail.

When opening the second drive unit moves the bolt 6 in his slot 3 towards the proximal end. At the same time the bolt hits 6 against the casserole 4a the claw disk 4 and rotates them against the spring force of the spring (not shown) counterclockwise, as in 7b is shown. The locking bracket 11 is thus from the claw 5 the claw disk 4 released and can now in a further relative movement between the locking unit and locking bracket 11 out of the slot 2 emerge as in 7c shown.

8th shows the manual closing of the flap with the help of the maintenance slide 8th , For this purpose, first the bolt 6 either via a (not shown) pull rope or by a short manual opening movement of the flap in the distal position moved (arrow 1 ). Then the maintenance slide 8th in the lane of the bolt 6 pushed (arrow 2 ) to secure it in the distal position. Subsequently, the flap is moved in the closing direction, whereby the locking bracket 11 in the slot 2 enters (arrow 3 ). The locking bar is running 11 on an inclined ramp surface 4d on the claw washer and thereby turns it counterclockwise (arrow 4 ).

In the following, the locking bracket abuts 11 against the abutment area 8a of the maintenance slide 8th and thereby shifts it to its rest position (arrow 5 ). In a further relative movement of the locking bracket 11 opposite the locking unit this enters the claw 5 the claw disk 4 one and the claw disk 4 can then turn by the spring force in a clockwise direction (arrow 6 ) and securely in the locking bracket 11 engage.

When closing with the second drive unit is the bolt 6 automatically in the distal position within the slot 3 due to the tensile force of the drive unit. The snap action is the same as manual closing and will not be described here again.

The Locking unit according to the second embodiment is particularly advantageous in dusty or dirty environment, because they do not have a closed housing has, in the dirt can penetrate to the safe function affect the locking unit.

However, the locking units of the two embodiments can be combined with each other as desired. In particular, the first embodiment with the maintenance slide 8th be equipped. In addition, each can have different shape of the slot 2 also be applied to the respective other embodiment.

Even though the locking unit for It can also be used with other flap systems be applied, such as windows, doors, etc.

1

body

2

slot

2a

guide leg

3

Long hole

4

claw washer

4a

pawl

4b

claw legs

4c

ramp surface

4d

sloping ramp

5

claw

6

actuator

7

connecting rod

8th

maintenance slide

8a

abutment surface

10

bars

10a

hooknose

10d

sloping ramp

10e

pivot point of the bolt

11

locking clip

50

locking bolt

51

locking

52

conical top

60

locking block

70

first drive unit

71

actuator

72

second drive unit

73

rope

Claims (11)

Locking unit preferably for flaps, in particular in the form of hinged daylight elements, comprising: a basic body ( 1 ; 21 ), which has a slot ( 2 ) for receiving a locking clip ( 11 ) and one to the slot ( 2 ) obliquely arranged slot ( 3 ) having; a claw washer ( 4 ) pivotally attached to the body ( 1 ; 21 ) and a claw ( 5 ), which in the slot ( 2 ) of the basic body ( 1 ; 21 ) is rotatable in to the locking bracket ( 11 ) in the slot ( 2 ) of the basic body ( 1 ; 21 ) catch; one in the slot ( 3 ) displaceably arranged actuator ( 6 ), the claw washer ( 4 ) is held by a spring force in the closed position and by moving the actuating element ( 6 ) in the slot ( 3 ) and running it on a ramp surface of the claw washer ( 4 ) or one with the claw disc ( 4 ) operatively connected element ( 10 ) is pivoted to an opening position in which the claw ( 5 ) the locking bracket ( 11 ), and wherein a width of the slot ( 2 ) and the claw ( 5 ) is dimensioned so that the locking bracket ( 11 ) has a large clearance, so that an opening of a locked by means of the locking unit flap by moving the locking bracket ( 11 ) is possible without unlocking the locking unit. Locking unit according to claim 1, further comprising a connecting rod ( 7 ) for connecting the actuating element ( 6 ) with a drive unit ( 72 ) having. Locking unit according to claim 1 or 2, further comprising a maintenance slide ( 8th ) for blocking the actuating element ( 6 ) in one of the claw plate ( 4 ) spaced position. Locking unit according to one of the preceding claims with a spring for biasing the claw washer ( 4 ) in the closing direction. Locking unit according to one of the preceding claims with a pivotable spring-loaded latch ( 10 ) for engaging with the claw washer ( 4 ) in its closed position. Flap system with a locking unit after the claims 1 to 5. Flap system according to claim 6 with a first with the locking bracket ( 11 ) in operative connection drive unit, the flap by moving the locking clip ( 11 ) opens without unlocking the locking unit. Flap system according to claim 7, wherein the first drive unit having a Elektrohubspindelmotor. Flap system according to Claim 7 or 8, having a second drive unit which moves the flap by displacing the bolt ( 6 ) unlocked and causes the opening of the flap by further displacement. Flap system according to claim 9, wherein the second Drive unit comprises a pneumatic cylinder. Use of a locking unit according to claims 1 to 5 for one Rooflight or skylight flap system, a skylight or like.