EP2157395B1 - Manhole cover - Google Patents

Description

The invention relates to a Lukenabdeckvorrichtung to protect against entrapment by a hatch cover, which is movable to cover the hatch opening of entry / exit hatches, in particular on combat vehicles from an open position into a covering position.

It is known, in addition to the hatch closing device, by means of which the hatch opening in particular airtight by means of a hatch cover is closed, for safety reasons to arrange a Lukenabdeckvorrichtung example inside a combat vehicle to prevent the closing of the mostly heavy armored hatch cover objects or people in the hatch opening so that the risk of entrapment is reduced. A cover device also has the advantage that when the hatch cover is open no objects such as cartridge cases can fall through the hatch into the vehicle and possibly lead to injury or damage. A well-known Lukenabdeckvorrichtung is for example in the DE 10 2004 036 842 A1 described. The Lukenabdeck device disclosed therein is designed as a safety roller blind which is extendable parallel to the hatch opening and actuates a switch in the covering position, through which the supply circuit of an electric motor closing the hatch is released, so that the motor can be actuated to open and close.

The safety roller blind known in the state of the art has the disadvantages that, when it is released in the half-opened position, it falls downwards and thus may possibly strike a person. Furthermore, there is a risk that the roller blind tarp does not roll up uniformly and, for example, can roll up obliquely, so that smooth operation is no longer possible. Furthermore, problems may occur at low temperatures where the tarpaulin becomes too stiff to roll up.

The DE 43 07 160 A1 discloses a foldable canopy, which is arranged on the outside of the vehicle for protection against shaped charge projectiles.

It is the object of the invention to provide a Lukenabdeckvorrichtung of the aforementioned type with increased operational availability.

The invention solves the problem with the features of claim 1. Advantageous developments are part of the dependent claims.

A basic idea of the invention lies in the fact that the hatch covering device has a plurality of cover elements which can be displaced relative to one another and are arranged one above the other in the open position and which are arranged offset relative to one another in the covering position such that they respectively cover a partial region of the hatch opening. This results in a compact design in the open position, wherein the Lukenabdeckvorrichtung is movable in a structurally simple manner in the covering position. Thus, operator errors, such as a crooked rolling, avoided.

In a preferred embodiment, the cover elements are designed plate-shaped, in which case they are in particular parallel to each other and can be displaced parallel to the hatch opening.

The cover elements are configured such that they cover the hatch opening in the covering position. If the hatch cover is to be used for a circular hatch opening, it is advantageous if the cover elements are designed sickle-shaped. In this case, the cover elements on an arcuate edge. Preferably, the cover elements are pivotally mounted about a common pivot axis, wherein the pivot axis may extend substantially perpendicular to the plane of the cover plates. Preferably, moreover, the cover elements can be fan-shaped relative to each other, wherein the open position corresponds to a closed compartment and the covering an open compartment. The cover elements can thus be arranged offset from one another in the covering position, wherein they are at least partially arranged one above the other in the covering position.

In an advantageous embodiment, at least two superimposed cover elements are coupled together by a slot coupling. The slot coupling can in this case be designed such that a cover has a particular arcuate slot, wherein the adjacent cover engages with an engaging element, such as a rivet or a pin in the slot, so that in this way the displacement movement is performed. Preferably, all cover elements are connected to each other by a slot coupling, so that a movement of a cover leads to a staggered displacement of the other cover elements.

The cover elements may be arranged on a base body, which may be provided, for example with fastening means for attachment to the hatch or on the vehicle. The base body may in this case comprise guide means, in particular a guide rail, by means of which at least one cover element can be guided.

In addition, the hatch cover device may comprise a locking device, by means of which at least one cover element can be locked in the covering position. In this case, the locking device preferably comprises a bolt lock, in which a bolt engages in a corresponding recess of the cover element. The locking device may further comprise an auxiliary insertion device, which has at least one run-on slope for the insertion of the cover. In this way, it can be achieved that a manual actuation of the hatch cover device facilitates introduction into the locking position. Prefers the auxiliary insertion device has at least two opposite run-on slopes, so that it is designed catch mouth.

The hatch cover device can furthermore have at least one sensor device by means of which the cover position can be sensed. For increased safety, the hatch cover device in this case comprise two redundant sensor devices. The sensor device preferably has a switch which is actuated by a cover element in the covering position. When the closed covering position is sensed, the sensor device can emit a signal by means of which, for example, the closing mechanism of the hatch cover is released. The sensor device may also include an auxiliary device with at least one run-on slope for the introduction of the cover to increase the security, wherein the auxiliary device may be configured Fanggaulförmig.

In a particularly preferred embodiment, the Lukenabdeckvorrichtung a Führungsabdeckelement, which is in particular provided with a handle, wherein the Lukenabdeckvorrichtung by actuation of the Führungsabdeckelementes from the open position into the covering position and vice versa is movable. The operator thus only needs to move the one Führungsabdeckelement so that a one-handed operation is possible.

An entry / exit hatch according to the invention is part of claim 14 and a combat vehicle according to the invention is part of claim 15.

Fig. 1

eine Lukenabdeckvorrichtung in der Abdeckstellung aus der Sicht des Bedieners;

Fig. 2

die Lukenabdeckvorrichtung nach Fig. 1 in einer rückseitigen Ansicht;

Fig. 3

die Lukenabdeckvorrichtung nach Fig. 1 in der Offenstellung;

Fig. 4

die Lukenabdeckvorrichtung nach Fig. 3 in einer rückseitigen Ansicht;

Fig. 5

einen Ausschnitt der Lukenabdeckvorrichtung nach Fig. 1 in einer Seitenansicht und

Fig. 6

eine modifizierte Lukenabdeckvorrichtung in der Offenstellung.

An advantageous embodiment of a Lukenabdeckvorrichtung invention is based on the FIGS. 1 to 5 described. Show it:

Fig. 1

a hatch cover device in the cover position from the operator's point of view;

Fig. 2

the hatch cover after Fig. 1 in a back view;

Fig. 3

the hatch cover after Fig. 1 in the open position;

Fig. 4

the hatch cover after Fig. 3 in a back view;

Fig. 5

a section of Lukenabdeckvorrichtung after Fig. 1 in a side view and

Fig. 6

a modified Lukenabdeckvorrichtung in the open position.

The FIGS. 1 to 6 show a Lukenabdeckvorrichtung 1, which can be fastened to cover the hatch opening of a circular entrance / exit hatch of a combat vehicle, not shown, on the hatch. The Lukenabdeckvorrichtung is out of the in the Figures 3 and 4 Open position shown in the in the FIGS. 1 and 2 illustrated covering position and vice versa movable. In the covering position, substantially the entire hatch opening is covered, so that in the covering position no persons or objects can be brought into the hatch opening for safety reasons. In the open position, the hatch opening is substantially not covered, so that unhindered entry and exit through the hatch opening is possible. At the hatch opening a tip sight 23 is arranged.

According to Fig. 1 the hatch covering device 1 has a main body 3, which has fastening means 15, by way of which the basic body can be fastened to the hatch opening. On the main body 3 also seven cover elements 2a to 2g are arranged, which each covering a portion of the hatch opening in the covering position. Here, the cover 2g is fixedly arranged on the base body 3.

The cover element 2g has an arcuate oblong hole 6, in which a rivet of the cover element 2f arranged under the cover element 2g is arranged. Through this slot coupling the cover 2f is slidably guided to the cover 2g. The displacement takes place as a rotational movement, since the cover 2f is rotatably mounted about a rotation axis 10. In the same way as the cover 2f the other cover elements 2a to 2e are rotatably mounted about the axis of rotation 10, wherein each cover 2a to 2e via a slot coupling 6, 7 is connected to the adjacent cover, so that the cover 2a to 2g fan-shaped against each other are displaceable. The cover elements 2a to 2g are in this case designed plate-shaped and are parallel to each other. In order to cover the circular hatch opening in a simple manner, the cover elements 2a to 2f are designed sickle-shaped. The pivot axis 10 extends substantially perpendicular to the plane of the cover plates 2a to 2g.

According to the in the Figures 3 and 4 shown open position of Lukenabdeckvorrichtung 1, the cover 2a to 2g are arranged one above the other, so that a space-saving position of the cover 2a to 2g is achieved in the open position. To operate the hatch covering device 1, the operator grips the handle 8, which is arranged on the foremost cover element designated as the guide cover element 2a. By movement of the Führungsabdeckelementes 2a are offset in time, the remaining cover elements 2b to 2f taken until the in Fig. 1 shown cover position is reached. Conversely, to open the hatch cover device, the operator can in turn move the handle 8 of the guide cover element 2a, so that the cover elements 2a to 2g are pushed together.

To secure the covering position is a locking device 16 which comprises a bolt 4 which engages in the covering position in a correspondingly shaped bore 18 of the Führungsabdeckelements for locking. To facilitate the insertion of the Führungsabdeckelements 2a in the locking device 16, this has an auxiliary insertion device 17, which is provided with two chamfers, so that the locking position is found by the operator in a simple manner. The spring-loaded bolt 4 can be unlocked to release the lock by means of the handle 5.

The Führungsabdeckelement 2a also has a located on the opposite side of the axis of rotation 10 actuating lever 11, which in the covering position two switches 13 (FIG. Fig. 5 ) is operated by two sensor devices 9, so that a release signal for releasing the hatch closing mechanism can be issued. To increase safety, an auxiliary device 14 is provided, which has two run-on slopes for the introduction of the actuating lever 11 of the cover 2a.

In the open position, the actuating lever 11 of the cover element 2 a strikes against a pressure piece 19, so that the open position of the hatch cover device 1 is held in position by the pressure piece 19.

The hatch cover device 1 is designed such that it can be released at any time without the position being changed, so that there is no danger to the crew when it is released. Disc springs are inserted on the axis of rotation between the cover elements 2a to 2g, so that the stiffness of the sliding movement of the cover elements 2a to 2f can be adjusted by adjusting the screw connection 20 on the axis of rotation 10.

On the main body 3, a guide device 12 is further arranged, which is designed as a guide rail, in which the cover 2e is performed.

The locking device 16 is designed such that it only has to be actuated when the hatch cover device 1 is to be opened.

Due to the run-on slopes of the auxiliary insertion device 17 and the auxiliary device 14, the guide track 12 and the fixed axis of rotation 10, forced guidance of the hatch cover device 1 is achieved, so that only the guide cover element 2a has to be moved in order to reach the covering position starting from the open position and the locking device 16 hold true.

Sliding strips 21 are arranged on the lower side of the cover elements 2b to 2g, so that the friction between the cover elements 2a to 2g is reduced.

The hatch cover device 1 according to the invention is not limited to circular hatch openings. In an analogous manner, the Lukenabdeckvorrichtung also be used to cover an example rectangular hatch opening.

The Fig. 6 shows a modified, on the Lukenabdeckvorrichtung after Fig. 1 to 5 based Lukenabdeckvorrichtung, in which, in contrast, the sensor devices 9 are higher, so that the operating lever 11 of the Führungsabdeckelements 2a can not enter the auxiliary device 14. For this reason, a shift lever 26 is articulated on the actuating lever 11 via a driver 25, which compensates for the difference in height and, upon rotation of the actuating lever 11, enters the auxiliary device 14 and actuates the sensor devices 9.

Claims (15)

1. Hatch-covering device for protection against becoming trapped by a hatch cover, which device can be moved from an open position into a covering position for the purpose of covering the hatch aperture of entry/exit hatches, particularly on combat vehicles, characterised in that it has a number of covering elements (2) which can be displaced relative to one another, which, in the open position, are arranged one above another and which, in the covering position, are arranged in a manner displaced relative to one another in such a way that they each cover a partial region of the hatch aperture.
2. Hatch-covering device according to Claim 1, characterised in that the covering elements (2) are of plate-shaped configuration and are located, in particular, parallel to one another.
3. Hatch-covering device according to either of the preceding claims, characterised in that the covering elements (2) are of sickle-shaped configuration.
4. Hatch-covering device according to one of the preceding claims, characterised in that the covering elements (2) are mounted to as to be swivellable about a common swivel pin (10).
5. Hatch-covering device according to Claims 2 and 4, characterised in that the swivel pin (10) extends substantially perpendicularly to the plane of the plates of the covering elements (2).
6. Hatch-covering device according to one of the preceding claims, characterised in that the covering elements (2) can be displaced relative to one another in the form of a fan.
7. Hatch-covering device according to one of the preceding claims, characterised in that the covering elements (2) are arranged so as to be offset relative to one another in the covering position.
8. Hatch-covering device according to one of the preceding claims, characterised in that two covering elements (2) which are located one above the other are coupled to one another by a slot-type coupling (6, 7).
9. Hatch-covering device according to one of the preceding claims, characterised in that it comprises a base member (3) on which the covering elements (2) are arranged and which comprises guide means (12), in particular a guide rail, for guiding at least one covering element (2).
10. Hatch-covering device according to one of the preceding claims, characterised in that it comprises a locking device (16) by means of which at least one covering element (2a) can be locked in the covering position, in particular by means of a bolt (4).
11. Hatch-covering device according to Claim 10, characterised in that the locking device (16) comprises an auxiliary guiding-in device (17) having at least one run-up slope for guiding in the covering element (2a).
12. Hatch-covering device according to one of the preceding claims, characterised in that it has at least one sensor device (9) by which the covering position can be sensed and which has, in particular, a switch (13) which is actuated by a covering element (2) in the covering position.
13. Hatch-covering device according to one of the preceding claims, characterised in that it has a guiding covering element (2a) which is provided, in particular, with a handle (8), it being possible to move the hatch-covering device from the open position into the covering position and vice versa by actuating the guiding covering element (2a).
14. Entry/exit hatch, particularly on combat vehicles, having a hatch-covering device according to one of the preceding claims.
15. Combat vehicle having an entry/exit hatch according to Claim 14.

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