CA2825544A1

CA2825544A1 - Device for avoiding an unintentional adjustment

Info

Publication number: CA2825544A1
Application number: CA2825544A
Authority: CA
Inventors: Andreas Hortnagl
Original assignee: ABA Hoertnagl GmbH
Current assignee: ABA Hoertnagl GmbH
Priority date: 2011-02-15
Filing date: 2012-02-07
Publication date: 2012-08-23
Also published as: AT510850A4; WO2012109682A1; EP2675316A1; AT510850B1; US20130305493A1

Abstract

The invention relates to a device (1) for avoiding an unintentional adjustment of a belt (4) guided around at least one belt guide bar (2) of a buckle component (3), wherein the device (1) comprises a main body (5) having a first contact surface (6) and additionally at least one elastic body (7), preferably at least one spring tongue, having at least one further contact surface (8). The elastic body (7), preferably with a region (9) of the elastic body (7) spaced from the further contact surface (8), is held directly or indirectly against the main body (5) and the belt (4) can be clamped between the first contact surface (6) and the further contact surface (8).

Description

DEVICE FOR AVOIDING AN UNINTENTIONAL ADJUSTMENT
The present invention relates to a device for avoiding an unintentional adjustment of a belt guided around at least one belt guide bar of a buckle component.
A wide variety of types of harnesses for a wide variety of applications are known in the prior art. Thus, such arrangements of belts or harnesses are used in an appropriate embodiment for securing persons, for example as a climbing belt or as a harness for various aviation sports but also when working at exposed positions. It is also known practice to use appropriately designed harnesses for fastening and securing loads, to name only a few examples. In order to be able to releasably connect the belts of the harnesses to one another, it is known practice to use a wide variety of types of buckles. The buckles usually have two or more buckle components which can be fastened releasably on or to one another via appropriate connection devices and together form the buckle. The belts of the harnesses are frequently fastened adjustably to the buckles. For this purpose, there are a wide variety of design forms in the prior art. If no adjustment of the belt is required, the belts can be firmly stitched to the buckles. However, it is frequently expedient to provide an adjustment possibility for the belt. In these cases, the belts are usually guided around one or more belt guide bars of a buckle component. In particular in the case of the last-mentioned embodiments, the problem frequently occurs of an undesired adjustment of the belt tension, that is to say in particular a loosening of the belt. Harnesses are in the rarest of cases actually firmly tightened by the user.
As a rule, the unwanted adjustment occurs under weak tension or even no tension on the belt if the user or the load moves. The result is that the belts have to be frequently re-tensioned.

In order to prevent an unwanted adjustment of the belt, devices of the generic type are known per se in the prior art. Velcro tapes are frequently used in order to avoid an undesired adjustment. However, Velcro tapes have the disadvantage that they slowly lose their functionality after repeated use.
It is therefore the object to provide a device of the generic type which can be operated simply and reliably used permanently.
This is achieved according to the invention in that the device has a basic body with a first contact surface and additionally at least one elastic body, preferably at least one spring tongue, with at least one further contact surface, wherein the elastic body, preferably with a region of the elastic body spaced from the further contact surface, is held directly or indirectly on the basic body, and the belt can be clamped between the first contact surface and the further contact surface.
The device according to the invention allows the belt, with its sections preferably lying doubly or multiply above one another, to be clamped between the first contact surface of the basic body and the further contact surface of the elastic body, with the result that an unwanted adjustment of the belt is prevented, in particular even when it is not under tension. The elastic body can be designed, for example, as a spring, tongue or spring lug. It can be fastened or held directly on the basic body.
However, the elastic body can also be fastened or held indirectly on the basic body with the interposition of another component. An essential advantage of the use of at least one elastic body is that the spring action of the elastic body makes it possible to cover a large range of belt thicknesses with a single device.
The device according to the invention is itself generally not a buckle component of a buckle but an additional component which is mounted on the belt in addition to the buckle component and as an add-on part prevents an adjustment of the belt on the buckle component. A buckle in this connection is understood to mean a body formed of two or more buckle components, wherein the buckle components can be releasably fastened to one another by means of appropriate connection devices.

Such buckles are known in a multiplicity of design forms in the prior art.
Usually, a buckle component is mounted on each of the belts to be connected to one another and the belts are then connected to one another by connecting the buckle components. In their interconnected state, the buckles also serve to transmit tensile forces from one belt to the other belt.
In preferred embodiments of the device according to the invention, by contrast, it is provided that the device according to the invention is provided exclusively for clamping the belt. It is advantageously free from other connection devices. A
device according to the invention is thus advantageously not a buckle component which is provided for connecting to another buckle component. Thus, devices according to the invention are generally not provided to transmit tensile forces from one belt to another belt.
Devices according to the invention can be embodied in different widths and be adapted to the respective width of the belt. However, it is also possible to design a device according to the invention such that belts of different width can be secured against an undesired adjustment.
For the purpose of avoiding the belt slipping through between the first contact surface and the second contact surface, it is advantageous if a sequence of elevations, preferably studs or webs, and depressions arranged between adjacent elevations, for, preferably positive, engagement in the belt is or are arranged, preferably in each case, on the first contact surface and/or the further contact surface. Consequently, the belt is secured not only by the elastic forces of the elastic body but also by the engagement of the elevations in the belt.

, , In order to allow a desired adjustment of the belt, for example when donning or removing the harness, with minimum effort, preferred embodiments of the invention provide that the device has a lever body which is arranged pivotably on the basic body by means of a pivot pin, wherein the elastic body is held, preferably exclusively, on the basic body via the lever body. In these cases, the elastic body is thus held on the basic body indirectly, namely via the lever body. The lever body can be pivoted back and forth about the pivot pin between a closed or clamped position and an open position. In the open position, adjusting the belt is possible with little expenditure of force. In the closed or clamped position, the belt is clamped in and secured against an unwanted adjustment. Preferred embodiments of this type provide that the lever body has, in addition to the pivot pin and/or arranged at a spacing from the pivot pin, at least one latching connection part which, in a clamped position of the lever body, can be latched with a counter-latching connection part of the basic body. The lever body is secured in the clamped position by means of the interaction between latching connection part and counter-latching connection part.
If the lever body is to be pivoted into the open position, latching connection parts and counter-latching connection parts can be released from one another. For this purpose, it is advantageous if the lever body and/or the basic body has, for closing and/or releasing the latching connection, at least one hand-operated release element between latching connection part and counter-latching connection part. The release element provided can be for example, a release lever which is pivotably arranged on the basic body or on the lever body, preferably against an elastic restoring force.
Preferred embodiments provide that the further contact surface of the elastic body is at a smaller spacing from the pivot pin than the latching connection part.
The lever body can be formed in one piece together with the pivot pin, latching connection part and elastic body.

For the purpose of being able to simply retrofit devices according to the invention on belts already mounted on corresponding buckle components, preferred embodiments of the invention provide that the elastic body, preferably the lever body with the elastic body, can be fastened to the basic body by means of a connection which can be closed and released without a tool, preferably a latching connection. The pivot pin of the lever body can be particularly preferably fastened to the basic body by means of the connection, preferably latching connection, which can be closed and released without a tool. This makes it possible first to insert the belt into the basic body and then fasten the elastic body or the lever body to the basic body.
This makes it possible to avoid having to thread the belt through between the two contact surfaces. Particular preference is given here to latching connections between the elastic body or the lever body and the basic body.
Preferred embodiments of the invention provide that the basic body has or is a U-shaped profile, wherein the first contact surface is part of a base portion of the U-shaped profile situated between two projecting lateral legs of the U-shaped profile.
In such embodiments, it can be provided that the counter-latching connection parts and/or also the receptacles for the pivot pin of the lever body are arranged on the lateral legs.
Apart from the device per se, the invention also relates to an arrangement with at least one buckle component which has at least one connection device for releasable connection to another buckle component, and with at least one belt which is guided around at least one belt guide bar of the buckle component, wherein the arrangement additionally has at least one device according to the invention and at least a first portion of the belt and at least a further portion of the belt are clamped between the first contact surface and the further contact surface. In this connection, advantageous embodiments provide that the portions of the belt bear directly against one another in the region between the contact surfaces with their sides facing away from the contact surfaces against which they bear directly in each case.
Further features and details of preferred configurations of the invention will be explained with reference to an exemplary embodiment according to the invention represented in the figures, in which:
Figures 1 to 3 show various views of an arrangement consisting of buckle, belt and device according to the invention, wherein the device according to the invention is in the closed or clamped position;
Figures 4 to 6 show representations corresponding two Figures 1 to 3, but wherein the device is in the open position;
Figures 7 to 10 show various representations of the device per se according to the invention used in Figures 1 to 6;
Figure 11 shows a perspective representation of the basic body of this exemplary embodiment, and Figures 12 and 13 show representations of the lever body of this exemplary embodiment.
Figure 1 shows, in a perspective representation, how two buckle components 3 and 3' known per se are connected to one another by means of an appropriate connection device 10 and 10'. Figure 2 shows a longitudinal section through the arrangement according to Figure 1 and Figure 3, depicting the corresponding side views. In the exemplary embodiment shown, a connection device 10 in the form of a male extension is integrally formed on the buckle component 3. The other buckle component 3' has, as corresponding counterparts, connection devices 10' in the form of locking levers. The locking levers 10' are used to fix the connection device 10, with the result that the two buckle components 3' and 3 are fixedly connected to one another and tensile forces on the belt 4 can be transmitted via the buckle components 3 and 3' to a belt or other object (not shown here) fastened to the buckle component 3'. To release the two belts from one another, the locking levers of the connection device 10' are actuated by hand, with the result that the two buckle components 3 and 3' can be separated from one another. All this is known per se and can be implemented according to the prior art in a wide range of embodiments.
In order to be able to adjust the length of the harness, the belt 4 actually represented is guided around the belt guide bar 2 on the buckle component 3.
As a rule, the belt guide bars 2 are displaceably mounted on the buckle component 3 such that the belt 4 guided around the belt guide bar is held clamped on the buckle component 3 by means of belt guide bar 2. However, this clamping action generally only lasts for as long as corresponding tension is present on at least one of the portions 20 or 21 of the belt 4. The problem described at the outset with the unwanted adjustment of the length of the belt 4 always occurs when the belt 4 or its portions 20 and 21 are not correspondingly loaded with tension. In that case, the belt 4 can slip around the belt guide bar 2 and thus the undesired adjustment can result. In order to prevent this, a device 1 according to the invention is now provided which is arranged in addition to the buckle component 3 on the belt 4. The device according to the invention allows the belt 4 to be clamped between the first contact surface 6 of the basic body 5 and the further contact surface 8 of the elastic body 7, with the result that an unwanted adjustment of the belt 4 can no longer occur.
In Figures 1 to 3, the device 1 is in its clamped or closed position in which the belt 4 is secured against an unwanted adjustment in the stated manner. In Figures 4 to 6, the device 1 is in the open position in which the belt 4 is not held clamped in the device 1, and thus, if required, a desired adjustment can be carried out.
Figures 4 to 6 again depict a perspective representation, a longitudinal section and a side view.
In Figure 7, the device 1 is represented in the open position without belt 4 and without buckle. Figure 8 shows a side view of the device 1 in the clamped or closed position. In Figure 11, the basic body 5 of the device 1 is represented as being detached from the other components. Figures 12 and 13 show the lever body 14 as being detached from other representations. Figure 12 shows a side view and Figure 13 shows a perspective representation from below.
In the exemplary embodiment shown, the elastic body 7 is designed as a spring tongue or elastic clamping lug. It is held not directly but indirectly on the basic body via the lever body 14. Of course, other embodiments of the invention are also conceivable, for example in which the elastic body 7 is fastened directly on the basic body 5. The elastic body 7 has the further contact surface 8. The first contact surface 6 is provided as a counterpart on the basic body 5. In the clamped position, the belt 4 is clamped between the first contact surface 6 and the further contact surface 8. For the purpose of achieving a most effective possible clamping action, in the exemplary embodiment shown both the first contact surface 6 and the further contact surface 8 are in each case equipped with a sequence of elevations 11 and depressions 12 arranged between adjacent elevations 11. In the example shown, the elevations 11 are studs. Instead, however, it is also possible to use webs or the like.
In the exemplary embodiment shown, the elastic body 7 is fastened to the lever body 14 with the region 9 opposite the further contact surface 8. In the variant represented, the lever body 14 is designed in one piece. In other words, the pivot pin 13, the release elements 17, the latching connection parts 15 and the elastic body 7 are connected to one another in one piece. Such parts can be produced, for example, from plastic, for example by injection molding. The basic body 5 can also be correspondingly formed from plastic. However, other materials such as, for example, metal are also conceivable for both parts. In the exemplary embodiment shown, the , lever body 14 is equipped with axle bolts which form the pivot pin 13. The pivot pin 13 or the stated axle bolts are pivotably mounted in a corresponding cutout in the basic body 18.
As already mentioned at the outset, it is expedient for the purpose of simple retrofittability if the axle bolts or the pivot pin 13 are or is mounted such that it can be latched in and out of the corresponding pivot pin receptacle of the basic body 5 in a non-destructive manner. In the already-mounted position shown, the lever body 14 can in any case be pivoted about the pivot pin 13 with respect to the basic body 5 between an open position and a clamped or closed position. In order to secure the lever body 14 in the clamped or closed position, in the exemplary embodiment shown an additional latching connection is provided between the pivotable lever body and basic body 5. This is formed by the latching connection parts 15 of the lever body 14 and the counter-latching connection parts 16 of the basic body 5. In the exemplary embodiment shown, the latching connection parts 15 are projecting latching noses and the counter-latching connection parts 16 are corresponding cutouts for receiving these latching noses in the lateral legs 18 of the basic body 5.
However, this is not absolutely necessary. Appropriate latching connections can of course also be embodied differently. In order to allow the most advantageous lever forces possible to act, it is preferably provided that the further contact surface 8 is situated closer to the pivot pin 13 than the latching connection parts 15. In order to be able to release the latching connection between latching connection part 15 and counter-latching connection part 16 and, if appropriate, also to close it, release elements 17 which can be actuated by hand are provided on the lever body 14 of this exemplary embodiment. In the exemplary embodiment shown, these release elements are desig-ned as release levers which are arranged such that they can be pivoted against an elastic restoring force. Figure 9 shows the pivoted-out position of these release elements 17, in which the latching connection parts 15 are released from the counter-latching connection parts 16. In this position, the lever body can be pivoted from the clamped or closed position according to Figure 8 into the open position according to Figure 7. When pivoting back from the open position into the clamped position, the latching connection parts 15 advantageously latch by themselves into the counter-latching connection parts 16 as soon as the lever body 14 is pivoted correspondingly far with respect to the basic body 15. Figure 10 shows a representation in which the latching connection parts 15 are latched into the counter-latching connection parts 16.
Figure 11 shows particularly clearly that the basic body 5 of this exemplary embodiment is designed as a U-shaped profile. The first contact surface 6 with the elevations 11 and depressions 12 is situated on the base portion 19 of this U-shaped profile. The counter-latching connection parts 16 and the pin receptacles for the pivot pin 13 are arranged in the two lateral legs 18 projecting from the central base portion 19.

Key to the reference numbers:
1 Device 2 Belt guide bar 3, 3' Buckle component 4 Belt Basic body 6 First contact surface 7 Elastic body 8 Further contact surface 9 Region 10, 10' Connection device 11 Elevation 12 Depression 13 Pivot pin 14 Lever body Latching connection part 16 Counter-latching connection part 17 Release element 18 Lateral leg 19 Base portion First portion 21 Further portion

Claims

1. A device (1) for avoiding an unintentional adjustment of a belt (4) guided around at least one belt guide bar (2) of a buckle component (3), characterized in that the device (1) has a basic body (5) with a first contact surface (6) and additionally at least one elastic body (7), preferably at least one spring tongue, with at least one further contact surface (8), wherein the elastic body (7), preferably with a region (9) of the elastic body (7) spaced from the further contact surface (8), is held directly or indirectly on the basic body (5), and the belt (4) can be clamped between the first contact surface (6) and the further contact surface (8).

2. The device (1) as claimed in claim 1, characterized in that the device (1) is provided exclusively for clamping the belt (4) and/or is free from other connection devices (10).

3. The device (1) as claimed in claim 1 or 2, characterized in that a sequence of elevations (11), preferably studs or webs, and depressions (12) arranged between adjacent elevations (11), for, preferably positive, engagement in the belt (4) is or are arranged, preferably in each case, on the first contact surface (6) and/or the further contact surface (8).

4. The device (1) as claimed in one of claims 1 to 3, characterized in that the device (1) has a lever body (14) which is arranged pivotably on the basic body (5) by means of a pivot pin (13), wherein the elastic body (7) is held, preferably exclusively, on the basic body (5) via the lever body (14).

5. The device (1) as claimed in one of claims 1 to 4, characterized in that the elastic body (7), preferably the lever body (14) with the elastic body (7), can be fastened to the basic body (5) by means of a connection which can be closed and released without a tool, preferably a latching connection.

6. The device (1) as claimed in claim 4 or 5, characterized in that the lever body (14) has, in addition to the pivot pin (13) and/or arranged at a spacing from the pivot pin (13), at least one latching connection part (15) which, in a clamped position of the lever body (14), can be latched with a counter-latching connection part (16) of the basic body (5).

7. The device (1) as claimed in claim 6, characterized in that the lever body (14) and/or the basic body (5) has, for closing and/or releasing the latching connection, at least one hand-operated release element (17) between latching connection part (15) and counter-latching connection part (16).

8. The device (1) as claimed in one of claims 1 to 7, characterized in that the basic body (5) has or is a U-shaped profile, wherein the first contact surface (6) is part of a base portion (19) of the U-shaped profile situated between two projecting lateral legs (18) of the U-shaped profile.

9. An arrangement with at least one buckle component (3) which has at least one connection device (10) for releasable connection to another buckle component (3'), and with at least one belt (4) which is guided around at least one belt guide bar (2) of the buckle component (3), characterized in that the arrangement additionally has at least one device (1) as claimed in one of claims 1 to 8 and at least a first portion (20) of the belt (4) and at least a further portion (21) of the belt (4) are clamped between the first contact surface (6) and the further contact surface (8).

10. The arrangement as claimed in claim 9, characterized in that the portions (20, 21) of the belt (4) bear directly against one another in the region between the contact surfaces (6, 8) with their sides facing away from the contact surfaces (6, 8) against which they bear directly in each case.