EP1208762A1 - Fastener - Google Patents

Abstract

The clasp comprises a housing (6) containing a U-shaped spring (12). This has locking ribs (18, 20) on the ends of its arms which fit around a knob (42) on the other half of the clasp so that the two parts are held together.

Description

The present invention relates to a closure, Can be connected to one another via the at least two elements and are separable from each other. Such closures are preferred in the jewelry and clothing industries used.

Not only the device is to be locked below or the object to be closed or closed are understood, but also connection mechanisms and Locking mechanisms for connecting elements Can be used for both fashion and technical solutions are.

From European patent application EP 0843976 is a Clasp known from the jewelry industry. When inserting an engagement element in a locking element recesses arrive at a provided on the engagement element Sliding element with projections of the locking element engaged. To release the sliding element is pressed down, to thus engage between the recesses and loosen the tabs.

A disadvantage of the closure is the EP 0843976 that the sliding element has a certain minimum size Must have so that the operator's fingers Can open the shutter. So the shutter cannot can be reduced as desired. Furthermore, it can be more common Actuation occur that due to a too low Tension of the sliding element no engagement of the projections there is more with the recesses. In this case, the Closure no longer perform its function.

A button for braces is known from DE 554189, where two sharply offset on a hook part Shoulders are formed, behind which a bow-shaped Feather with its ends in such a way that the Button parts in case of excessive tensile stress Withdrawal of the spring ends can be released from each other can. This is supposed to damage the clothes be avoided. Consequently, opening the Closure desired and the spring ends are strongly rounded educated.

A sliding closure is known from DE-PS 468 012, in which an engagement projection on an engagement part in locked state in a recess of a resilient Bending tab of a locking element is immersed. To the Release of the engagement become the locking element and the engagement element pivoted relative to each other, one Shoulder of the engagement element on a rotary stop runs up, so that the bending tab against its spring force pried open and the closure is opened. A disadvantage of this solution is that the maximum holding force by the Spring force of the bending tab is limited, so that only low closing forces can be applied.

In contrast, the invention is based on the object to create a closure that with simple device technology Effort even at a comparatively high level Closes loads reliably.

This task is accomplished by a closure with the features of claim 1 solved.

With the closure according to the invention that can be Locking element and the engaging element first non-positively, preferably by spring action bring together. Running when applying tensile forces a slidably mounted locking part of the locking element on a stop over which the locking part in the direction of its engagement position and / or is positively loaded. With this closure is a reliable one even with high loads Closing ensured, opening the clasp can be carried out in a simple manner by the locking part at least partially during the opening movement is lifted off the stop.

In a preferred embodiment of the invention the stop is formed in a housing in which the Locking part is slidably received. With the The term "displacement" can mean an axial and / or Rotational displacement can be understood.

In a particularly simple embodiment the locking part is approximately U-shaped and has two engagement projections on its two U-legs, the locking projections of the engagement element reach behind in the closed position. On the face of the two U-legs are inclined surfaces that when applying tensile forces or when closed Accumulate closure on wedge surfaces of the stop, so that the engagement projections in a form-fitting manner in their locking position are biased. Instead of the oblique or Wedge surfaces can also have other geometries, for example curved ones Surfaces, stop edges in etc. can be provided.

The engaging projection of the engaging element is on its flanks preferably with at least one control surface provided, on the at least one of the engagement projections of the engaging element during the opening process slides so that the opening movement through the geometry the control surface is determined.

The assembly effort for the closure can be minimized, if the engaging element is designed with a locking body is that in a receptacle of an engagement housing can be used. This locking body is preferred Embodiment with at least one spring leg executed, the in the engaged state on a locking projection of the engagement housing is supported. The locking body can with a single, asymmetrical spring leg or with two axially symmetrical spring legs be formed.

When pivoting the engaging element relative to the Locking element acts on the travel of the Bending claimed spring legs as a "dead path" that the Release kinematics together with the above Control surface determined. This travel of the spring leg is limited so that when the maximum travel is reached the triggering process essentially only via the control surface is controlled.

During the elastic deformation of the spring leg is a base part of the locking body of the engagement element with a side edge on the front or on the side of the housing supported.

The assembly of the closure according to the invention can simplify itself further if in the housing or mounting slots are provided on the front, through which through the locking element and the engagement element into the interior of the housing or the engagement housing can be used.

In a particularly simple embodiment are both housings identical, so that in these either the locking element or the engaging element can be used.

Through a game between a breakthrough in the housing and the respective engagement or locking element can have a certain relative mobility of the closure be created transversely to the pivoting movement when opening. This flexibility can also be achieved by using a concave Designing the opposite housing allows become. This function is always important when the Closure should adapt to a curve on which it lies on (e.g. with a belt or a bracelet).

By several engagement projections lying axially one behind the other a length adjustment can be made possible. The Closure then acts due to the successive Multiple interventions also as a safety lock.

The locking part and the engaging part can be used as axially symmetrical body - for example as a stamped part - or as a rotationally symmetrical body - for example as Casting- are executed. In the latter case, the Spring action of the locking part by slots in the formed around the locking projection area become.

Other advantageous developments of the invention are the subject of further subclaims.

Figur 1 eine Schnittdarstellung eines ersten Ausführungsbeispiels eines erfindungsgemäßen Verschlusses;

Figur 2 unterschiedliche Relativpositionen eines Verriegelungselementes und eines Eingriffselementes des Verschlusses aus Figur 1;

Figur 3 ein Ausführungsbeispiel mit identischen Gehäusen für das Verriegelungselement und das Eingriffselement und

Figuren 4, 5 zwei weitere Varianten des Ausführungsbeispiels aus Figur 3 mit unterschiedlichen Gehäusen.

Preferred exemplary embodiments of the invention are explained in more detail below with the aid of schematic drawings. Show it:

Figure 1 is a sectional view of a first embodiment of a closure according to the invention;

FIG. 2 shows different relative positions of a locking element and an engagement element of the closure from FIG. 1;

Figure 3 shows an embodiment with identical housings for the locking element and the engaging element and

Figures 4, 5 two further variants of the embodiment of Figure 3 with different housings.

In Figure 1 is a section through a closure 1 with a locking element 2 and an engagement element 4 shown in the open state.

The locking element 2 has a housing 6, for example. be produced as a stamped or bent part or by centrifugal casting can. A fastening eyelet 8 is formed on the housing 6, via which the locking element 2 on a piece of clothing, a piece of jewelry or another item to be locked Element can be attached.

The housing 6 has a receiving space 10 in which a Locking part 12 is added. This locking part 12 is designed as a u-shaped or v-shaped spring and has two U-legs 14, 16, one at each end section Locking projection 18 or 20 is formed. In the The solution shown in FIG. 1 is the locking part 12 manufactured as a stamped part.

The two locking projections 18, 20 are oblique to the axis of symmetry 22 of the closure 1 and have two inclined surfaces 24 and 26 on the front, each merge into a curved sliding surface 28.

According to Figure 1, the receiving space 10 is designed such that the locking part 12 both in the axial direction displaceable by the distance s as well as with respect to the axis of symmetry 22 is pivotable.

There is an opening in an end wall 30 of the housing 6 32 formed, through which shown in the Basic position, the two locking projections 18, 20 partially extend. The are in the basic position two inclined surfaces 24, 26 on wedge surfaces 34, 36 of the Housing 6 on the right front wall in Figure 1 of the receiving space 10 tapers towards the opening 32 is.

The engagement element 4 has an engagement housing 38 which like the housing 6, for example as a stamped or bent part Centrifugal casting can be carried out. In the intervention housing 38, an engagement part 40 is received, which with a Engagement projection 42 an end opening 44 in one End wall 46 of the engagement housing 38 passes through. The Engagement part 40 has a in a receiving space 50 of the Engagement housing 38 received locking body 48 which in essentially from a bearing the engagement projection 42 Base part 51 and a spring leg 52, which is about is U-shaped to the base part 51.

In the illustrated embodiment, the receiving space 50 a support edge 56 on which the base part 51 with a suitably trained oblique Side surface 56 is supported. In the in the engagement housing 38 inserted state rests on the spring leg 52 a locking projection 58 of the engagement housing 38.

The assembly of the locking element 2 and the engagement element 4 is done in a very simple manner by the U-shaped locking part 12 through the opening 32nd of the housing 6 and the hook-shaped locking body 48 through the front opening 44 of the locking housing 38 is inserted into the receiving space 10 or 50. During this insertion, the two U-legs 14, 16 snap or the spring leg 52 from an insertion position in the shown basic position in which the wedge surfaces 34, 36 an outward movement of the locking part 14 from the Recording space 10 and the locking projection 58 a shift prevent the base part 51 in the receiving space 50. In this Locking position is the locking body 51 with a curved rear surface 60 supported on the housing base 62.

A fastening eyelet is also on the locking housing 38 8 trained.

The locking projection 42 has on its flanks Control curves 64, 66 on which the sliding surfaces 28 at Sliding and opening of the closure slide or supported be so that the closing and opening process by the interaction of the control curves 64, 66 and the sliding surfaces 28 is determined.

The function of the closure shown in Figure 1 be explained on the basis of the basic illustration according to FIG. 2. The representation labeled a) shows the open one State of the closure according to Figure 1. That is, the locking element 2 is separated from the engagement element 4.

To close the closure 1, the locking element 2 and the engaging element 4 approximately in the direction the axis of symmetry 22 moves towards each other so that the engagement projection 42 with ramp surfaces 68, 70 on the sliding surfaces 28 accumulates. As a result, the locking part 12 lifted from the wedge surfaces 34, 36 and in the axial direction moved backward until a base 72 hits the bottom 74 of the Housing 6 runs up. With the further closing movement the locking projections 18, 20 slide on the control cams 64, 66, so that the two U-legs 14, 16 are first bent apart so that the engagement projection 42 in the area between the two locking projections 18, 20 and thus in the receiving space 10 of the housing 6 can immerse. When pushing in further snap the locking projections 18, 20 into a waist-like Taper 74 of the engagement projection 72, so that this engagement projection 42 according to the representation c) is engaged by the locking projections 18, 20.

Now try the locking element 2 and that Engagement element 4 in the direction of the axis of symmetry 22 apart to pull, the locking member 12 in the 2 moved to the right so that the Base 72 lifts off from floor 73 and the two inclined surfaces 24, 26 of the locking projections 18 and 20 on the associated wedge surfaces 34 and 36, respectively. About these Wedge surfaces 34, 36 of the housing 6 becomes the locking part 12 applied in the closing direction, so that a release of the closure practically only by destroying the Locking part 12 or the engaging part 40 allows. In other words, in systems on the wedge surfaces 34, 36 a friction and / or positive locking of the closure, so that very high closing forces can be applied.

To release the lock, as shown in d) the engagement element 4 relative to the locking element 2 be pivoted. With this pivoting is initially the engagement member 40 about a pivot 76, i.e. the support area between the wedge surface 34 and the inclined surface of the locking projection 18 pivoted around so that the locking projection 20 lifts off the wedge surface 36 and the upper (representation according to FIG. 2) U-leg 14 the adjacent side wall of the housing 6 runs up. The engagement housing touches during this pivoting movement 38 with its end wall 46 the adjacent end wall 30 of the housing 6, this contact surface 78 during the further pivoting is a kind of fulcrum for the pivoting of the two housings 38, 6 forms.

With the further swiveling movement the lower U-leg becomes 16 deflected so that the locking projection 20 with its sliding surface 28 on the cam 66 of the Locking projection 42 slides off during the relative movement between the locking projection 18 of the U-leg 14 and the control curve located at the top in FIG 64 is minimal. The opening movement of the U-leg 16 is not hindered by the wedge surface 36 because of the engagement projection 20 is lifted off this. During this Swiveling the two U-legs 14, 16 of the Engagement part 40 bent apart until the Engagement is released and the closure can be opened. This opening movement is made by a suitable design the control curves 64, 66 of the engagement projection 42 and the Design of the sliding surfaces 28 and the wedge surfaces 34, 36 and the inclined surfaces 24, 26 controlled so that the Kinematics through a suitable choice of the radii of curvature and Tilt angle is changeable.

Of course, the release of the closure can also by pivoting in the opposite direction, i.e. by swiveling of the engaging element 4 in the illustration according to Figure 2 take place upwards.

The release movement can with a suitable design of the Locking body 48 also by the spring action of the spring leg 52 can also be controlled. That is, with the corresponding Dimensioning of the spring leg 52 can the locking body 48 can be set so that the base part 51 at the Swiveling according to Figure 2d) against the spring force of the Support edge 54 is lifted off, so that the relative position between the engaging part 40 and the locking part 12 remains approximately unchanged until the base part 51 also a projection 80 runs onto a swivel stop 82 and thus the further relative movement of the base part 51 Relation to the spring leg 52 is prevented. The further one Opening movement then takes place analogously to that described above Tripping steps.

Figure 3 shows an embodiment in which the housing 6 shows the same structure as the engagement housing 38 has so that for the manufacture of the housing 6, 38 a single Slingshot shape or die shape is sufficient.

Both housings 6, 38 have wedge surfaces 34, 36, however in contrast to the previously described embodiment via a vertical step 84 or 86 into the neighboring, circumferential walls 88 extending in the axial direction, 90 of the housing 6 or 38 pass over.

Just like in the above-described embodiment can the locking projections 18, 20 of the locking part 12 are supported on the wedge surfaces 34, 36. The one or more spring legs 52 of the locking body 51 then in a corresponding manner on the vertical steps 84, 86 supported so that both functions, i.e. the function of Engagement element 4 and the locking element 2 with a housing type can be realized.

In principle, an engagement part could be in the housing 38 Use 40 according to Figure 1, but the sloping side surface 56 by one in the axial direction running side surface would have to be replaced.

In Figure 3 is also an embodiment of a shown symmetrically constructed engagement part 40. This has a central base part 51, which in the engagement projection 42 passes. The base part 51 carries two spring legs 52a, 52b, which are in the locking position on the vertical surfaces 86 and 84 are supported. The back surface 60 lies as in the embodiment described at the beginning Housing bottom 62 on. The base part 51 has two projections 80a, 80b, with the pivoting of the base part 51 with Relation to the spring legs 52a or 52b to the neighboring ones Swing stops 82a and 82b run up. That is, at This variant is the opening kinematics of the lock in both swiveling directions initially due to the spring action of the engaging portion 40 is determined while at only in the embodiment shown in Figure 1 the downward pivoting was the case when pivoting the spring leg 52 has in the opposite direction in the embodiment shown in Figure 1 none Effect.

In the illustration according to FIG. 4, this is symmetrical constructed engagement part 40 with a base part 51 and two Spring legs 52a, 52b and two projections 80a, 80b in an engagement housing 38 is used, which does not have wedge surfaces, but with two pivot stops running parallel to the axis 82a, 82b and two locking projections 58a, 58b is. That is, the housing according to Figure 4 is an axisymmetric Design of the lower part of the housing Engagement housing 38 in Figure 1.

With this variant there are two different ones Housing 6, 38 for realizing the closure required, so that the expenditure in terms of device technology larger than in the embodiment shown in Figure 3 is.

Figure 5 finally shows a variant in which one Tilting movement of the symmetrically constructed engagement part 40 kept to a minimum during the opening of the closure is. For this purpose, the rear surface 60 is not as in the case of the above-described exemplary embodiments with a radius, but provided with a flat 88 with which the Engagement part 40 is supported on the housing base 62, so that the freedom of movement of the engaging part 40 when opening the Closure solely through the spring action of the spring legs and not determined by tilting the entire component is. Otherwise corresponds to this embodiment the embodiment of Figure 3, so that more Explanations are unnecessary.

To insert the U-shaped locking part 12 can - As indicated in Figure 5 - in the housing 6 a side Mounting slot 90 are provided so that the insertion of the locking part 12 is facilitated.

The closure of the invention is for a variety of solutions can be used and is by no means on uses in the jewelry industry or in the clothing industry limited.

In the exemplary embodiments described above, these are Locking and the engagement element as axisymmetric Parts, for example formed by stamping. The protection area however, the present application also covers rotationally symmetrical components, for example by casting are manufactured from.

What is disclosed is a closure with a locking element, that can be brought into engagement with an engagement element is. The locking element can be used to release the engagement be pivoted with respect to the engaging element. The Locking element has a sliding locking part, that with an engaging part of the engaging element interacts. The locking part is a stop assigned, through which this friction and / or form-fitting in Direction of its engagement position is biased.

Bezugszeichenligte:

1

shutter

2

locking element

4

engaging member

6

casing

8th

securing eye

10

accommodation space

12

locking member

14

U-leg

16

"

18

locking projection

20

"

22

axis of symmetry

24

sloping surface

26

"

28

sliding surface

30

end wall

32

breakthrough

34

wedge surface

36

"

38

engagement housing

40

engaging part

42

engaging projection

44

Forehead breakthrough

46

end wall

48

latching body

50

accommodation space

51

base

52

spring leg

54

supporting edge

56

side surface

58

catch projection

60

rear surface

62

caseback

64

cams

66

"

68

ramp surface

70

"

72

Base

73

ground

74

rejuvenation

76

pivot point

78

Touchpad

80

head Start

82

swivel stop

84

vertical level

86

"

88

flattening

90

mounting slot

Claims (14)

Closure with a locking element (2) which can be brought into engagement with an engagement element (4) and which can be pivoted relative to one another in order to release the engagement, the locking element (2) being a resilient locking part (12) with at least one engagement projection (42 ) of the engaging element (4) engaging behind the locking projection (18, 20), characterized in that the locking part (12) is movably mounted relative to stops (34,36,72,73,88,90) and when the engagement projection is inserted, it is shaped and / or can be brought into operative connection with the engagement projection (42). Closure according to claim 1, wherein the stop (34, 36) on a the locking part (12) receiving Housing (6) is formed. Closure according to claim 1 or 2, wherein the locking part (12) is approximately U-shaped and on its two U-legs (14, 16) two the engagement projection (42) of the engaging element (4) engaging behind Has locking projections (18, 20), at their End faces contact surfaces, preferably Inclined surfaces (24, 26) are formed, which corresponding stop surfaces, in particular wedge surfaces (34, 36) of the stop are assigned. Closure according to claim 3, wherein the engagement projection (18, 20) at least one on its flanks Control surface (64, 66) over which when opening the closure (1) an opening movement of the Locking part (12) is controllable. Closure according to one of the preceding claims, wherein the engagement element (4) has a latching body (48) has in a receiving space (50) of an engagement housing (38) is used. Closure according to claim 5, wherein the locking body (48) has at least one spring leg (52) which in the locked state on a locking projection (58) of the Engagement housing (38) is supported. Closure according to claim 6, being on the locking body (48) two axially symmetrical spring legs (52a, 52b) are formed, each on a locking projection (58a, 58b) are supported. Closure according to claim 6 or 7, wherein the spring travel of the spring leg (52) with respect to a the engagement projection (42) supporting base part (51) of the locking body (48) limited by a swivel stop (82) is. Closure according to claim 8, wherein the base part (51) with a side surface (56, 60, 88) on one Supporting edge (54, 62) of the engagement housing (38) is supported is. Closure according to one of claims 5 to 9, wherein the engagement housing (38) and / or the housing (6) in each case is provided with mounting slots (32, 44, 90), through which an engaging part (40) of the engaging element (4) or the locking part (12) into the housing (6, 38) can be used. Closure according to claim 10, both housings (6, 38) are identical. Closure according to one of the preceding Claims, wherein the locking part (12) and an engagement part (40) of the engagement element (4) one end opening (32, 44) each Push through the housing (6,38), whereby between the Peripheral edges of the openings (32, 44) and the respective part (4.40) at least across Closing direction there is a game. Closure according to one of the preceding Claims, several on the engagement element (4) in the closing direction one behind the other Engagement projections (42) are formed. Closure according to one of the preceding Claims, the spring action of the Locking part (12) is formed by slots

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