EP1947272B1 - Lock assembly with a swivel latch hook and a movable grip bar for hooking shut - Google Patents

Description

The invention relates to mechanical locking arrangements in which, in the case of locking, a pivotable locking hook hooks into a hook-connecting element or comprises locking it.

Such locking arrangements are eg in German utility model no. 298 08 914.9 which are suitable, inter alia, as closures for luggage boxes in aircraft. In such a locking arrangement, a closure nose connected to a container and a pivotable locking hook connected to a pivotable lid are provided. In the locking case, the locking lug is gripped by the hook part of the locking hook.

Such closures are subject to high demands, especially in aircraft construction; they have to be e.g. withstand the highest loads, and have a low weight and small dimensions.

However, the components to be joined together, such as containers and lids, can assume a position deviating from a desired desired position in their mutual position. Such deviations may be due to tolerances of the components themselves and to assembly tolerances; the deviations may cause the latching hook on the lid to no longer be sufficiently aligned with the hook-and-loop connection member on the lid for the desired locking action to effect a secure lock.

For this reason, it is an object of the invention to provide a locking arrangement which compensates for certain deviations in the mutual positioning of the locking hook and the hook-connecting element bearing components and ensures a secure locking.

To explain the task is on the FIG.5A and FIG.5B directed.
5a shows
a first component B1 with a holding rod H1 and a second component B2 with a pivotable locking hook V2. Both components B1 and B2 are positioned relative to each other, that in the case of locking, the hook portion V2-1 of the locking hook V2 the holding rod H1 comprises sufficiently entangled.
5 b shows
a first component B1 'with a holding rod H1' and a second component B2 'with a pivotable locking hook V2'. Both components B1 'and B2' are positioned relative to each other so that a locking between the hook portion V2'-1 of the locking hook and the support rod H1 'can not be done, since both components B1' and B2 '(for example, the distance d) to each other (" heights ") are shifted.
Such in 5 b illustrated problematic - as already mentioned above, practically result from component and / or assembly tolerances.
This can be a difficult, insecure or even impossible locking conditional.

The object of the invention is solved by the features of claim 1. Advantageous developments of the invention are gekannzeichnet in the dependent claims.

In order to achieve this object according to the invention, the support rod is displaceably arranged in the one component in a guideway; the locking hook on the other component undergoes a special design and arrangement in a holder with a sliding bevel for the support rod.
This results in a secure locking between the hook part of the locking hook and the support rod, even if the components according to 5 b each other "heights" are arranged shifted.

• FIG.1
  eine perspektivische auseinandergezogene Darstellung der erfindungsgemäßen Verriegelungsanordnung mit einem Verriegelungshaken und einer verschieblichen Haltestange als Haken-Verbindungs-Element;
• FIG.2A
  eine perspektivische auszugsweise auseinandergezogene Darstellung der verschieblichen Haltestange und eines Halters mit Gleitschrägen für die Haltestange;
• FIG.2B
  eine perspektivische auszugsweise Darstellung der Haltestange in einer Anfangs-Position auf der Gleitschrägen des Halters;
• FIG.2C
  eine perspektivische auszugsweise Darstellung des Verriegelungs-Stabes in einer End-Position auf der Gleitschrägen des Halters;
• FIG.3
  eine perspektivische auszugsweise auseinandergezogene Darstellung des Verriegelungshakens und der Haltestange gemäß FIG.1;
• FIG.4A
  eine auszugsweise Seitenansicht des Halters, des Verriegelungshakens und der Haltestange, wobei sich die Haltestange in einer Position im Mittelbereich der Halter-Gleitschrägen und in einer Position vor der äußeren Haken-Gleitschräge des noch abgesenkten Verriegelungshakens befindet;
• FIG.4B
  eine auszugsweise Seitenansicht des Verriegelungshakens und der Haltestange in Verriegelungsposition;
• FIG.5A und FIG.5B
  schematische Darstellungen zur Erläuterung der Aufgabenstellung der Erfindung:
  • FIG.5A
    Bauteil mit Verriegelungsstab und Bauteil mit Verriegelungshaken in auf einander ausgerichteter Verriegelungs-Position;
  • FIG.5B
    Bauteil mit Verriegelungsstab und Bauteil mit Verriegelungshaken gegeneiander verschobener Position, welche keine Verriegelung gestattet.

An embodiment of the invention is illustrated in the drawings and will be described in more detail below:
Show it:

• FIG.1
  a perspective exploded view of the locking arrangement according to the invention with a locking hook and a sliding support rod as a hook-connecting element;
• 2A
  a perspective partially exploded view of the sliding support rod and a holder with sliding bevels for the support rod;
• 2B
  a perspective excerpt representation of the support rod in an initial position on the sliding slopes of the holder;
• Figure 2c
  a perspective excerpt representation of the locking rod in an end position on the sliding slopes of the holder;
• FIG.3
  a perspective partially exploded view of the locking hook and the support rod according to FIG.1 ;
• 4a
  a partial side view of the holder, the locking hook and the support rod, wherein the support rod is in a position in the central region of the holder sliding bevels and in a position in front of the outer hook sliding bevel of the still lowered locking hook;
• 4B
  a partial side view of the locking hook and the support rod in the locked position;
• FIG.5A and FIG.5B
  schematic representations for explaining the object of the invention:
  • 5a
    Component with locking rod and component with locking hook in aligned locking position;
  • 5 b
    Component with locking rod and component with locking hook gegeneiander shifted position, which does not allow locking.

FIG.1 shows
a perspective exploded view of the locking assembly according to the invention with a locking hook 21 and a sliding support rod 11 as a hook-connecting element.
The support rod 11 is on a first component 10, the locking hook 21 with pivot axis 22 and on a second Component 20 is arranged.
The locking takes place by the holding rod 11 cross-hook portion 26 of the locking hook 21st
This locking is solvable.
The support rod 11 is arranged on both sides with their ends in each case a guide slot 12, 12 '. The limited guide slots are straight in spaced wall elements 14,15. An arcuate course is also possible.
The outer rods (11) ends are connected to discs 13, which prevent falling out of the support rod 11 from the guide slots.

The locking hook 21 is arranged between two wall elements 24 and 25 of a holder 27 on the component 20. The ends of the pivot axis 22 of the locking hook 21 are connected to these wall elements.
The wall elements 24 and 25 of the holder each have a rising slip slope 24-S and 25-S for the support rod 11. At its upper end, the sliding bevels have a nose-shaped stop 24-E.

When the first member 10 with the support rod 11 and the second member 20 with the locking hook 21 and the holder 27 with the sliding slopes in the direction X to move toward each other,
the holding rod 11 hits the lower region of the sliding bevel 24-S, 25-S. With continued movement of the components against each other, the support rod 11 is moved on this sliding bevel 24-S, 25-S up to the stop 24-E. This displacement of the support rod 11 on the sliding bevels 24-S, 25-S is accompanied by a simultaneous upward displacement of the support rod 11 in its guide slot 12,12 '.

The locking hook 21 is in the direction D by the spring F ( FIG.3 ).
The pivoting plane of the locking hook 21 extends adjacent to the holder sliding bevel 24-S, 25-S. The locking hook 21 is arranged between the wall elements 24, 25 of the holder 27, that the support rod 11 at its
Upward displacement on the sliding bevel 24-S, 25-S on the hook portion 26 of the locking hook 21 meets. This hook member 26 has an outer hook sliding surface 21-S. When the support rod 11 acts on this hook sliding surface 21-S in its upward displacement, the locking hook is pressed against the spring force acting in the direction D upward. The locking hook executes a small swiveling movement about its axis.
In this case, as it were, the holding rod 11 "slides" under the hook part 26 of the locking hook 21.
After further displacement of the support rod 11 on the holder sliding bevels 24-S, 25-S device, the support rod 11 directly under the recess 23 of the hook portion 26th
In this position, the hook member 26 is spring-driven in direction D pressed directly on the support rod 11 in the locked position.

Details of this locking process will be described in more detail below in connection with FIGS 2A . 2 B . 2C . FIG. 3 and FIGS.4A and 4B described :.

2A shows
a perspective excerpted exploded view of the support rod 11 on the first component and the holder 27 on the second component 20th
The support rod 11 is slidably disposed in the guide slots 12, 12 'of two spaced wall elements 14, 15.
The holder 27 comprises two spaced wall elements 24,25 with sliding bevels 24-S, 25-S for the support rod eleventh
The support rod assumes a lower position in the guide slots before the components 10 and 20 move toward each other in the direction X.

2B shows
a perspective excerpt representation of the incident on the lower portion of the sliding bevel 24-S, 25-S of the holder 27 holding rod eleventh
In a further approximation of both components in the direction X, the support rod 11 is moved on the sliding bevels 24-S, 25-S up in the direction of arrow U.
At the same time (not shown), the support rod (forcibly, something else is not possible) in their guide slots 12, 12 '(s. FIG. 2A ) moved upwards. Without taking into account the locking hook 21 arranged between the wall elements 24, 25 of the holder 27, the upward displacement of the support rod 11 on the sliding bevel would be limited by the nose-shaped stop 24-E.
Likewise, the possibility of displacement of the support rod is limited by the non-open ends of their guide slots 12, 12 '.

FIG. 3 shows
a perspective partially exploded view of the locking hook 21 and the support rod 11 according to FIG.1 ,
The locking hook 21 is biased by a arranged on its pivot axis 22 leg spring F in the direction of rotation D. One leg of the spring is on the locking hook, the other on the holder 27 (not shown).
The locking hook has a hook portion 26 with a recess 23. The support rod 11 is disposed in the locking position in this recess 23 of the hook portion 26. It is in the case of locking the hook part 26th sufficiently covered.
4a shows
a partial side view of the holder 27 (with a view of the wall element 24) with locking hooks 21 and with respect to the support rod 11. This takes a position on the holder sliding bevels 24-S immediately before the outer hook sliding bevel 21-S of still lowered locking hook 21 a.
In this position, further displaceable on the holder sliding bevel 24-S support rod presses against the hook sliding bevel 21-S, that the locking hook against the force acting in the direction D spring (F) swings upwards force, so that the support rod on the sliding slope
24-S almost pushes under the hook portion 26 of the locking hook 21. Upon further displacement, the support rod 11 (s. FIG. 4B ) directly under the recess 23 of the hook portion 26, wherein the force acting in the direction D spring (F) force presses the locking hook 21 further down.
Here, the support rod 11 passes directly into the recess 23 of the hook portion 26, ie in the locking position with the locking hook 21st
In this regard shows 4B
a partial side view of the support rod 11 in the locking position with the locking hook 21st

Regardless of the embodiment of the invention described in the figures, it should be noted that the guide slot 12, 12 'can not only be straight but also arcuate. Instead of the guide slot, for example, a groove-shaped recess in the wall parts 14, 15 may be provided. The holder sliding bevel 24-S, 25-S need not be rectilinear, an arcuate course is also possible. However, their course must be coordinated with the course of the guide slot or the guide.
The stops 24-E on the holder sliding bevels 24-S are dispensable. They serve only additional security in the positioning of the holding rod.
Holding rod 11 and holder 27 with locking hooks can be directly attached to eg a container or swivel cover of this container. However, it is also possible according to the described embodiment, holding rod 11 and holder 27 with the locking hook on a mounting element (10,20) to be arranged, which is then connected to the container or its lid.

Claims (3)

1. Releasable locking arrangement for two components consisting of a hook connecting element located on a first component and a spring loaded locking hook with swivelling axis located on a second component,
   where the locking hook and the hook connecting element are connected to one another to form the look,
   characterized in
   that the hook connecting element on the first component (10) is a retaining rod (11) whose ends are movable in a guide track (12, 12'),
   that the swivelling axis (22) of the locking hook (21) on the second component (20) is connected with a holder (27),
   that the holder (27) has a holder-sliding-bevel (24-S, 25-S) for the retaining rod (11),
   where
   when the two components (10, 20) approach one another, the retaining rod (11) strikes the holder-sliding-bevel (24-S, 25-S)
   and where, when the two components continue to approach one another, the retaining rod is displaced upwards on this holder-sliding-bevel (24-S, 25-S) and at the same time in its guide track (12, 12'),
   that the hooked part (26) of the locking hook (21) has an outer hook sliding surface (21-S),
   that the swivelling plane of the locking hook (21) runs adjacent to the sliding bevel (24-S, 25-S) of the holder and the locking hook is arranged on the holder (27) in such a way that the hook sliding surface (21-S), can be subjected to pressure from the movable retaining rod (11) on the sliding bevel (24-S, 25-S) of the holder in such a way that the locking hook (21) is pressed into a position above the retaining rod (11) against the force of the spring acting on it
   until, following further displacement of the retaining rod (11) on the sliding bevel (24-S, 25-S) of the holder, the hooked part (26) of the spring (F)-loaded locking hook (21) is pressed into the locked position on the retaining rod (11).
2. Arrangement according to claim 1, characterised in that the sliding bevel (24-S, 25-S) has an upper stop (24-E) for the retaining rod (11).
3. Arrangement according to claim 1, characterised in that the holder (27) comprises two wall elements (24, 25) at a distance from one another, each having a holder-sliding-bevel (24-S, 25-S),
   where the holder-sliding-bevels are aligned towards one another to receive the retaining rod (11),
   and that the locking hook (21) is located between the two wall elements.

Images