U.S. patent application number 14/122715 was filed with the patent office on 2014-10-16 for buckle assembly.
This patent application is currently assigned to ABA Hortnagl GmbH. The applicant listed for this patent is Andreas Hortnagl. Invention is credited to Andreas Hortnagl.
Application Number | 20140304955 14/122715 |
Document ID | / |
Family ID | 46275592 |
Filed Date | 2014-10-16 |
United States Patent
Application |
20140304955 |
Kind Code |
A1 |
Hortnagl; Andreas |
October 16, 2014 |
BUCKLE ASSEMBLY
Abstract
A buckle assembly, including at least one buckle and at least
one release trigger, wherein the buckle has a first buckle
component and an additional buckle component. The first buckle
component has a bar, which is movable back and forth between a
locked position and an unlocked position. In a connected position
of the buckle components the bar engages in the locked position
thereof behind a locking surface of the additional buckle component
in order to interlock the two buckle components and the bar can be
moved to the unlocked position to disconnect the buckle components.
The release trigger is connected to at least one of the buckle
components by a transmission line, preferably a Bowden cable, the
additional buckle component has at least one counter bar, which is
movable from a locked position of the counter bar to an unlocked
position by actuating the release trigger.
Inventors: |
Hortnagl; Andreas; (Fulpmes,
AT) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Hortnagl; Andreas |
Fulpmes |
|
AT |
|
|
Assignee: |
ABA Hortnagl GmbH
|
Family ID: |
46275592 |
Appl. No.: |
14/122715 |
Filed: |
May 10, 2012 |
PCT Filed: |
May 10, 2012 |
PCT NO: |
PCT/AT2012/000130 |
371 Date: |
November 27, 2013 |
Current U.S.
Class: |
24/595.1 |
Current CPC
Class: |
F41H 1/02 20130101; A44B
11/266 20130101; A44B 11/2573 20130101; A44B 11/25 20130101; Y10T
24/45466 20150115; Y10T 24/45262 20150115 |
Class at
Publication: |
24/595.1 |
International
Class: |
A44B 11/25 20060101
A44B011/25 |
Foreign Application Data
Date |
Code |
Application Number |
May 31, 2011 |
AT |
A8002011 |
Claims
1. A buckle assembly comprising at least one buckle and at least
one release trigger, the buckle has a first buckle component and at
least one further buckle component, the first buckle component has
at least one locking bar which is movable back and forth between a
locking position of the locking bar and an unlocking position of
the locking bar, in a connecting position of the buckle components,
the locking bar, in the locking position thereof, engages behind a
locking surface of the at least one further buckle component in
order to lock the two buckle components to each other, and, in
order to separate the buckle components, the locking bar is movable
into the unlocking position thereof, a release trigger is connected
by at least one transmission line to at least one of the buckle
components, and the further buckle component has at least one
counter locking bar which is movable from a locking position of the
counter locking bar into an unlocking position of the counter
locking bar by actuation of the release trigger.
2. The buckle assembly as claimed in claim 1, wherein the counter
locking bar has at least one supporting surface and, in the locking
position thereof, the supporting surface blocks the at least one
locking bar in the locking position thereof.
3. The buckle assembly as claimed in claim 1, wherein the first
buckle component has at least one elastic restoring element which
prestresses the locking bar in a direction of the locking position
thereof.
4. The buckle assembly as claimed in claim 1, wherein the locking
bar is displaceable back and forth or is pivotable back and forth
between the locking position thereof and the unlocking position
thereof.
5. The buckle assembly as claimed in claim 1, wherein a housing of
the buckle has at least one engagement opening which is accessible
from outside, and at least one of the locking bar or the counter
locking bar has at least one actuating surface, and the actuating
surface or surfaces is or are manually actuable from the outside
through the engagement opening in the connecting position of the
buckle components and in the locking position of at least one of
the locking bar or of the counter locking bar.
6. The buckle assembly as claimed in claim 1, wherein the buckle
assembly has a plurality of buckles which are connected via at
least one transmission line to the release trigger or to a coupling
device connected to the release trigger.
7. The buckle assembly as claimed in claim 1, wherein a step-down
gearing acts between the buckle or the buckles and the release
trigger.
8. The buckle assembly as claimed in claim 7, wherein the step-down
gearing has a guide path which runs spaced apart with respect to an
axis of rotation and is rotatable about the axis of rotation and is
intended for a tension cable which is connected to the release
trigger.
9. The buckle assembly as claimed in claim 1, wherein the at least
one counter locking bar is movable from the locking position
thereof into the unlocking position thereof by manual actuation of
the buckle and also by a transmission part which is actuable by the
release trigger, and the transmission part has a clearance for the
manual actuation of the counter locking bar.
10. The buckle assembly as claimed in claim 1, wherein at least one
of the locking bar or the locking surface has at least one oblique
surface, and the oblique surface assists the movement of the
locking bar from the locking position thereof into the unlocking
position thereof when the first buckle component is pulled off from
the further buckle component.
11. The buckle assembly as claimed in claim 1, wherein the
transmission line comprises a Bowden cable.
12. The buckle assembly as claimed in claim 1, wherein the counter
locking bar has at least one supporting surface and, in the locking
position thereof, the supporting surface blocks the at least one of
the locking bars in the locking position thereof.
13. The buckle assembly as claimed in claim 1, wherein the second
buckle component has at least one elastic restoring element which
prestresses the counter locking bar in a direction of the locking
position thereof.
14. The buckle assembly as claimed in claim 3, wherein the second
buckle component has at least one elastic restoring element which
prestresses the counter locking bar in a direction of the locking
position thereof.
15. The buckle assembly as claimed in claim 1, wherein the counter
locking bar is displaceable back and forth or is pivotable back and
forth between the locking position thereof and the unlocking
position thereof.
16. The buckle assembly as claimed in claim 1, wherein the
step-down gearing is arranged in a coupling device connected to the
release trigger.
17. The buckle assembly as claimed in claim 8, wherein a blocking
device acts on the step-down gearing, the blocking device, in a
blocking position thereof, blocks the step-down gearing in a
restoring direction and, in a release position thereof, releases
the step-down gearing in the restoring direction in order to
restore the at least one counter locking bar into the locking
position thereof.
18. The buckle assembly as claimed in claim 17, wherein the
blocking device is arranged as ratchet on the step-down gearing.
Description
BACKGROUND
[0001] The present invention relates to a buckle assembly
comprising at least one buckle and at least one release trigger,
wherein the buckle has a first buckle component and at least one
further buckle component, and the first buckle component has at
least one locking bar which is movable back and forth between a
locking position of the locking bar and an unlocking position of
the locking bar, wherein, in a connecting position of the buckle
components, the locking bar, in the locking position thereof,
engages behind a locking surface of the further buckle component in
order to lock the two buckle components to each other, and, in
order to separate the buckle components, the locking bar is movable
into the unlocking position thereof and the release trigger is
connected by means of at least one transmission line, in particular
in the form of a Bowden cable, to at least one of the buckle
components.
[0002] Buckle assemblies of the type in question can be used, for
example, whenever a person has to carry loads on their body, from
which the person has to be able to be separated rapidly in an
emergency situation or the like. The buckle assembly can be
integrated, for example, into a strap system of a rucksack or the
like. Opening of the buckle or the buckles enables the person, in
an emergency situation or the like, to be rapidly freed from the
rucksack or from another load fastened to the person by means of
the assembly. In the event of just one buckle, the advantage
consists especially in the fact that the buckle can be opened from
a remote location by means of remote triggering. This is
advantageous, for example, if the buckle is arranged at a location
to which access is difficult, if possible at all. A buckle which
can be opened by means of a pull cord is known, for example, in
U.S. Pat. No. 6,487,761 B2. The advantage of assemblies of the type
in question additionally resides, in the case of a plurality of
buckles, in that the person does not have to open each buckle
individually, but rather all of the buckles can be opened
simultaneously by a single actuation of the release trigger by
remote triggering.
[0003] WO 2009/143410 A2 already discloses a very simply structured
buckle assembly of the type in question having a plurality of
buckles. Cable pulls are used here in order to be able to open the
buckles centrally or by means of remote triggering. WO 2009/143464
A2 likewise shows buckle arrangements of the type in question. It
is known from this document to use Bowden cables, or pneumatic,
hydraulic or electric lines as the transmission line.
[0004] In all the buckle assemblies of the type in question that
are known in the prior art, the release trigger acts via the
corresponding transmission lines on the locking bars of the
respective buckles of the buckle assembly in order to bring said
buckles from the locking position into the unlocking position.
[0005] In the areas of use referred to, the buckles firstly have to
be operable in a simple manner and with as little effort as
possible, in order to be able to separate the buckle components
from one another. Secondly, however, the buckles, when they are in
the connecting position and the locking bar or the locking bars are
in the locking position thereof, are also intended to withstand
large tensile loadings without being inadvertently opened. An
undesirable or inadvertent or overload-induced opening of the
connection between the buckle components should generally
definitely be avoided in the abovementioned application areas.
SUMMARY
[0006] It is therefore the object to design a buckle assembly of
the type in question with remote triggering firstly to be operable
in a simple manner, but secondly also to be highly operationally
reliable.
[0007] This is achieved according to the invention by the further
buckle component having at least one counter locking bar which is
movable from a locking position of the counter locking bar into a
release position of the counter locking bar by actuation of the
release trigger.
[0008] A basic concept of the present invention is therefore to
provide at least one counter locking bar on the second buckle
component in addition to the at least one locking bar of the first
buckle component, thus achieving the effect that, in the locking
position of the locking bar and of the counter locking bar, the two
buckle components are connected to each other in a particularly
secure manner, i.e. are able to absorb high tensile forces.
Furthermore, the operating reliability is also increased as a
result, since, in order to separate the buckle components from one
another, both the locking bar and the counter locking bar have to
be moved into the respective unlocking positions. An inadvertent
release of the two buckle components from each other is highly
improbable or entirely prevented as a result. By connecting the
release trigger to the counter locking bar via a transmission line,
the counter locking bar is preferably movable into the unlocking
position thereof from the release trigger, and therefore from a
remote location.
[0009] In principle, it is conceivable for the first buckle
component also to have a locking surface which, in the locking
position of the counter locking bar, is engaged behind by said
counter locking bar. Particularly preferred embodiments of the
invention make provision for the counter locking bar to have at
least one supporting surface and, in the locking position thereof,
to use the supporting surface thereof to block the locking bar or
at least one of the locking bars in the locking position thereof.
In other words, provision is therefore made in these embodiments
for the supporting surface of the counter locking bar to support
the locking bar, when both locking bar and counter locking bar are
in the respective locking position, in such a manner that the
locking bar can no longer be moved into the unlocking position
thereof for as long as the counter locking bar is in the locking
position thereof. In these embodiments, the counter locking bar
therefore has to be brought first of all, or at least at the same
time as the locking bar, from the locking position thereof into the
unlocking position thereof so that the locking bar can be moved
into the unlocking position thereof. Only when locking bar and
counter locking bar are both correspondingly actuated can the
buckle components be separated from one another.
[0010] For the sake of completeness, it is pointed out that, even
if in the claims the locking bar and the counter locking bar are
referred to in places only in the singular, the most varied
embodiments are conceivable. The first buckle component can have
one or even a plurality of locking bars, such as, for example, two,
four or six locking bars, of the type depicted. The same also
applies to the second buckle component. The latter can also have
one or even two or more counter locking bars which operate in the
manner depicted or interact with one locking bar or a plurality of
locking bars of the first buckle component.
[0011] The connecting position of the buckle component is
understood to be the position in which the buckle components have
been brought so far toward one another and/or have been brought
into contact with one another in an intermeshing manner such that
the locking bar can be brought into the locking position thereof or
assumes same automatically if said locking bar is not stopped from
doing so, in particular by means of forces from the outside. The
fact that the buckle components are in this connecting position,
however, does not yet imply anything about the actual position of
the locking bar and/or of the counter locking bar. In corresponding
exemplary embodiments, the locking bar and counter locking bar can
be in the connecting position of the buckle components both in the
locking position thereof and in the unlocking position thereof.
However, it is advantageously provided for the locking bar and/or
the counter locking bar to be prestressed and, in the connecting
position of the buckle components, to automatically assume the,
preferably respective, locking position in so far as it or they are
not prevented from doing so, in particular by forces acting from
the outside.
[0012] The locking position of the locking bar is the position in
which said locking bar engages behind the locking surface, which is
assigned thereto, of the second buckle component. The unlocking
position of the locking bar is the position in which the locking
bar releases the locking surface of the second buckle component. So
that the buckle components can be separated from one another, the
locking bar or all of the locking bars of the first buckle
component therefore have to be in the unlocking position. The
locking position of the counter locking bar is the position in
which the counter locking bar blocks the locking bar in the locking
position thereof or engages behind a corresponding locking surface
of the first buckle component. The unlocking position of the
counter locking bar is in each case the position in which said
counter locking bar releases the components mentioned. Engagement
behind the respective buckle component with the locking bar and/or
counter locking bar, and also the blocking of the locking bar in
the locking position thereof by means of the supporting surface of
the counter locking bar are advantageously effected via a
corresponding positive locking action. The term engaging behind is
to be understood in the most general version thereof also to fixing
or fastening.
[0013] As a rule, the buckle components are designed in such a
manner that one of the buckle components has a male, outwardly
projecting extension, with which said buckle component engages in,
or is introduced into, a corresponding recess of the other buckle
component in the connecting position of the two buckle components.
In this sense, it is customary to refer to a male and a female
buckle component. However, mixed forms, in which the two buckle
components have corresponding projections and recesses with which
said buckle components then intermesh in each case in the
connecting position, are also conceivable in the invention.
[0014] In preferred embodiments, provision is made for the first
buckle component to have at least one elastic restoring element
which prestresses the locking bar in the direction of the locking
position thereof. The same advantageously also applies to the
second buckle component and/or the counter locking bar. In this
case too, provision is therefore advantageously made for the second
buckle component to have at least one elastic restoring element
which prestresses the counter locking bar in the direction of the
locking position thereof. The restoring elements are in each case
advantageously configured in such a manner that, as soon as the
locking bar and/or counter locking bar are released, said restoring
elements move said locking bar and/or counter locking bar back
again into the respective locking position by means of the elastic
restoring forces thereof. The elastic restoring elements can be
designed in very different ways. They can be springs, in particular
helical springs, leaf springs or the like, but also bodies made of
elastomer, such as, for example, rubber rings, to name but a few
examples. However, the elastic restoring elements can also be
directly integrated into the locking bars and/or the counter
locking bars by regions of correspondingly elastic design being
present in the respective locking bar and/or counter locking bar,
or by each thereof being of fully elastic design. The locking bar
is advantageously mounted so as to be movable, preferably
pivotable, in or on the first buckle component. By contrast, the
counter locking bar is advantageously mounted so as to be movable,
preferably displaceable, in or on the second buckle component,
preferably in or on a housing of the second buckle component.
Particularly preferred embodiments make provision for the counter
locking bar to be displaceable back and forth between the locking
position thereof and the unlocking position thereof, while the
locking bar is advantageously pivotable back and forth between the
locking position thereof and the unlocking position thereof. Of
course, however, the locking bar can also be displaceable back and
forth in a corresponding manner and/or the counter locking bar can
be pivotable back and forth in a corresponding manner. The locking
bar can be, for example, a component which is rigid per se and is
mounted pivotable about a pivot axis. Alternatively and/or in
addition, however, it is also conceivable for the locking bar to be
a component which is elastically bendable per se, i.e., for
example, is designed in the form of a spring tongue or has at least
one such spring tongue.
[0015] In preferred embodiments of the invention, provision is made
for the counter locking bar or the counter locking bars to be
movable from the locking position thereof into the unlocking
position thereof both by means of a release trigger and also by
manual actuation on the buckle. So that, when the counter locking
bar is actuated manually directly at the buckle, the release
trigger, the transmission line and all of the other buckle assembly
components connected in between do not have to be actuated at the
same time, particularly preferred embodiments in this connection
make provision for the counter locking bar or the counter locking
bars to be movable from the locking position thereof into the
unlocking position thereof by manual actuation of the buckle and
also by means of a transmission part which is actuable by the
release trigger, wherein the transmission part has a clearance for
the manual actuation of the counter locking bar. The clearance
ensures that an individual buckle can be actuated manually without
the abovementioned components required for the remote release
having to be moved at the same time.
[0016] In the connecting position of the buckle components, both
locking bar and counter locking bar are advantageously intended to
be able to be brought from the locking position thereof into the
respective unlocking position by means of manual actuation from the
outside. To this end, preferred embodiments of the invention make
provision for a housing of the buckle, preferably of the second
buckle component, to have at least one, preferably common,
engagement opening which is accessible from the outside and for the
locking bar and/or the counter locking bar, preferably in each
case, to have at least one actuating surface, wherein the actuating
surface or the actuating surfaces is or are manually actuable from
the outside through the engagement opening in the connecting
position of the buckle components and in the locking position of
the locking bar and/or of the counter locking bar. In this case, it
is in principle conceivable for locking bars and counter locking
bars or for each locking bar and each counter locking bar to be
provided with a dedicated engagement opening. Preferred
embodiments, however, provide common engagement openings through
which at least one locking bar and advantageously at least one
counter locking bar are manually accessible or actuable at the same
time from the outside.
[0017] Embodiments of the invention, in which the first buckle
component has at least two, preferably at least four, locking bars
which are mounted so as to be pivotable in at least two different
pivoting planes which are preferably normal with respect to one
another, are possible.
[0018] In principle, it should be pointed out that the buckles of
the buckle assembly according to the invention can in each case
have at least two, but also more than two, buckle components which
can be locked to one another and separated from one another by
means of locking bars and counter locking bars. The buckles are
advantageously what are referred to as strap buckles which serve to
connect different straps, which are fastened to the different
buckle components, to one another by the buckle components being
connected to one another. The buckle components here can in each
case have receiving openings, which are known per se in the prior
art, for attaching the straps. These may be receiving openings
which permit adjustment of the strap. However, these may also be
receiving openings at which the strap is fixed in one position.
This is known per se in the case of strap buckles in the prior art
and does not need further explanation.
[0019] As can already be seen from WO 2009/143464 A2, various types
of transmission lines that are known per se in the prior art are
suitable as the transmission line. In the course of the invention,
one or more Bowden cables is or are particularly preferably used as
transmission lines. However, corresponding tube or hose lines are
also conceivable as transmission lines when the release trigger is
intended to operate the counter locking bar pneumatically or
hydraulically. Electric cables may also serve as transmission lines
when the counter locking bar is intended to be actuated via a
corresponding electromechanical or electrostatic drive. In the case
of electric cables as transmission lines, use can also be made of
magnets or electromagnetic components, such as, for example, coil
arrangements, for moving the counter locking bar. In the case of
pneumatic or hydraulic transmission lines, a corresponding
piston/cylinder arrangement is advantageously provided for
actuating the counter locking bar.
[0020] In principle, it is conceivable for the buckle arrangement
to serve to be able to actuate a single buckle from a remote
location by means of the release trigger.
[0021] However, buckle assemblies according to the invention may
also have a plurality of buckles. In this case, provision is
advantageously made for the buckle assembly to have a plurality of
buckles which are connected via at least one, preferably in each
case one, transmission line, preferably in the form of a Bowden
cable, to the release trigger or to a coupling device connected to
the release trigger, preferably via a transmission line. The
coupling device here advantageously serves as a type of
multiplication station which transmits the release pulse of the
release trigger to all of the buckles which are connected thereto
by means of transmission lines.
[0022] If the buckle assembly has a plurality of buckles and if the
latter are intended to be actuable simultaneously by a single
release trigger, this can very rapidly lead to considerable forces
having to be applied to the release trigger in order to open all of
the buckles. In order to avoid this, preferred embodiments of the
invention make provision for a step-down gearing to be arranged
and/or to act between the buckle or the buckles and the release
trigger, preferably in the coupling device. The step-down gearing
here ensures that, even in the event of a plurality of buckle
assembly buckles to be actuated simultaneously, the forces to be
exerted manually by the operator on the release trigger are kept
within limits.
[0023] Such step-down gearings can in principle be designed in very
different ways. In a preferred alternative, the step-down gearing
has a guide path which runs spaced apart, preferably
concentrically, with respect to an axis of rotation and is
rotatable about the axis of rotation and is intended for a tension
cable which is connected to the release trigger. By this means, a
relatively small force can be converted into a large torque, thus
making it more simply possible simultaneously to actuate a
multiplicity of buckles with little effort.
[0024] Preferred embodiments of the invention make provision for a
blocking device to act, preferably in the manner of a ratchet, on
the step-down gearing, wherein the blocking device, in the blocking
position thereof, blocks the step-down gearing in a restoring
direction and, in the release position thereof, releases the
step-down gearing in the restoring direction in order to restore
the counter locking bar or the counter locking bars into the
locking position thereof. In this context, "in the manner of a
ratchet" should be understood as meaning a mechanism which, as
known per se in the case of ratchets, for example by means of
corresponding, intermeshing, spring-loaded toothings, permits a
movement in one direction and blocks said movement in the opposite
direction until a corresponding blocking device is brought into the
release position thereof, thus permitting a restoring movement. If
such a blocking device is used in the case of buckle assemblies
according to the invention having a corresponding step-down
gearing, it can be provided that, after the release trigger is
actuated, the counter locking bar or the counter locking bars can
only be moved back again from the unlocking position thereof into
the locking position thereof when the blocking device is brought
into the release position thereof and therefore the step-down
gearing is released. For the restoring movement, elastic restoring
elements, such as, for example, springs, can be integrated into the
coupling device and/or the step-down gearing. However, it is just
as readily possible, for the restoring movement of the counter
locking bars, to provide exclusively elastic restoring elements
which are integrated into the buckle or into the further buckle
component. These elastic restoring elements in the buckles can then
act directly or indirectly on the counter locking bar.
[0025] In the case of buckle assemblies according to the invention,
by actuation of the release trigger, first of all only the counter
locking bars are brought from the locking position thereof into the
unlocking position thereof. However, this does not yet mean that
the corresponding locking bars of the buckle or the buckles are
also brought from the locking position thereof into the unlocking
position thereof. This can be used as a safety measure if the
forces required in order to actuate the locking bars are of such a
magnitude that each locking bar has to be brought individually
manually from the locking position thereof into the unlocking
position. However, there are also alternatives according to the
invention in which, after the counter locking bars are unlocked by
means of release triggers not on each individual buckle, the
respective locking bars have to be brought manually from the
locking position thereof into the unlocking position thereof. These
alternatives make provision for the locking bar and/or the locking
surface to have at least one oblique surface, wherein the oblique
surface is designed for assisting the movement of the locking bar
from the locking position thereof into the unlocking position
thereof when the first buckle component is pulled off from the
further buckle component. In these alternatives, it is then
possible for each locking bar no longer to have to be opened
individually manually. On the contrary, it is then sufficient to
pull on the first buckle component itself. The oblique surfaces
then ensure that, after a certain force threshold value is
exceeded, the locking bars are brought into the unlocking positions
thereof by the oblique surfaces such that the first buckle
components can be pulled off from the further buckle components.
However, this preferably only takes place if the respective counter
locking bars interacting with the locking bars are in the unlocking
position thereof.
BRIEF DESCRIPTION OF THE DRAWINGS
[0026] The figures show preferred embodiments of the invention
which will then be described below. In the figures:
[0027] FIGS. 1 to 4 show illustrations of a first exemplary
embodiment according to the invention of a buckle assembly;
[0028] FIGS. 5 and 6 show an alternative embodiment of a release
trigger, in particular for a buckle assembly according to the first
exemplary embodiment;
[0029] FIGS. 7 and 8 show a second exemplary embodiment of the
invention that is modified in relation to the first exemplary
embodiment;
[0030] FIGS. 9 to 11 show a third alternative of the invention;
[0031] FIG. 12 shows a fourth alternative of the invention;
[0032] FIGS. 13 and 14 show an alternative embodiment of a release
trigger, in particular for the alternative according to FIG.
12;
[0033] FIGS. 15 and 16 show a further exemplary embodiment
according to the invention, this time with just one buckle, and
[0034] FIGS. 17 to 24 show various illustrations of a preferred
embodiment of a buckle which can be used in the mentioned buckle
assemblies according to the invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0035] In the first exemplary embodiment, the buckle assembly
according to the invention has four buckles 1. This is, of course,
merely one example, as the alternatives of the invention below also
show. Buckle assemblies according to the invention can have one,
two, three, four, but also more buckles 1. The buckles 1 are
connected to the coupling device 17 by means of the transmission
lines 16. The coupling device 17 of the first exemplary embodiment
is connected to the release trigger housing 25, and therefore to
the release trigger 15, via a transmission line 16.
[0036] In the first exemplary embodiment, as also in all of the
other exemplary embodiments shown here, Bowden cables are used as
transmission lines 16. This is a highly operationally reliable and
dependable form of the transmission line 16, but, as already
explained at the beginning, is not the sole possibility of using
buckle assemblies according to the invention. A Bowden cable, as is
generally known, refers to a movable mechanical element for
transmitting a tensile force by means of a flexibly layable
combination of a tension cable 21, generally made of wire, and a
sheath which is stable in the direction of extension.
[0037] In the first exemplary embodiment, as also in all of the
exemplary embodiments described below, use is made of a single type
of buckle. Of course, however, buckles 1 used for buckle assemblies
according to the invention may also be configured differently. In
the example shown, each buckle 1 has a first buckle component 2 and
a further buckle component 3. In FIGS. 1 to 3, as also in most of
the other figures, said buckle components are in the connecting
position in which they are connected to each other and are locked
to each other by locking bar 4 and counter locking bar 6. In FIGS.
1 to 3, the locking bars 4 of the first buckle components 2 and the
counter locking bars 6 of the further buckle components 3 are in
the respective locking position. In said locking position, each
locking bar 4 of a first buckle component 2 engages behind a
corresponding locking surface 5 of the respective further buckle
component 3. In the exemplary embodiment shown, each locking bar 4
is locked in the locking position thereof by a counter locking bar
6 by means of a supporting surface 7. This is illustrated
graphically in FIG. 18 in section and is explained in more detail
further below.
[0038] In the exemplary embodiments shown, the further buckle
components 3 each have a housing 10 into which the respective first
buckle component 2 can be pushed and blocked there. In order to
make locking bars 4 and counter locking bars 6 accessible in the
event of manual actuation of the buckle, the housing 10 in each
case has an engagement opening 12 in which the actuating surfaces
13 of the locking bars 4 and the actuating surfaces 14 of the
counter locking bars 6 are accessible from the outside and are
actuable. In order to bring the counter locking bars 6 manually on
the respective buckle 1 from the locking position thereof into the
unlocking position thereof, the respective actuating surface 14 has
to be pressed, for example, by one finger in each case. If, by
corresponding pressing on the actuating surface 14, the respective
counter locking bar 6 is in the unlocking position thereof, then,
by pressing against the corresponding actuating surface 13 of the
associated locking bar 4, the latter can also be brought from the
locking position thereof into the unlocking position. If all of the
locking bars 4 and counter locking bars 6 of a respective buckle 1
are in the unlocking position thereof, the first buckle component 2
can be separated from the further buckle component 3. In the
exemplary embodiment shown, the first, here male, buckle component
2 is pulled out of the housing 10 of the further, here female,
buckle component 3. Upon this manual actuation, the buckles 1 can
be opened individually or successively.
[0039] In order to bring all of the counter locking bars 6 from the
locking position thereof into the unlocking position thereof at the
same time, it suffices to pull centrally on the release trigger
15.
[0040] In order to comprehend the mechanism which is triggered in
the process, reference is made in particular to FIGS. 2 and 3. FIG.
2 is a top view in which the cover 30 of the coupling device
housing 36 of the coupling device 17 has been removed. FIG. 3 shows
an exploded illustration in which the construction of the coupling
device 17 can be seen particularly readily. In the first exemplary
embodiment, the release trigger housing 25 and the coupling device
17 are, as stated, components which are separate from each other
and are connected to each other via a Bowden cable 16. By pulling
on the release trigger 15, the tension cable 21 of the Bowden cable
16 connecting the release trigger housing 25 to the coupling device
17 is pulled for a distance out of the release trigger housing 25.
At the opposite end, said tension cable is connected to or fixed on
a rotary pulley 33 of the step-down gearing 18, in a tension cable
fixing means 43. The rotary pulley 33 has a guide path 20 which
runs spaced apart, preferably concentrically, from the axis of
rotation 19 and is rotatable here together with the rotary pulley
33 about the axis of rotation 19. The tension cable 21, which is
connected to the release trigger 15, is guided on said rotatable
guide path 20 and is fixed in the tension cable fixing means 43. By
this means, pulling on the release trigger 15 causes the rotary
pulley 33 to rotate about the axis of rotation 19 thereof in the
coupling device housing 36. By means of a concentric configuration
of the guide path 20 with respect to the axis of rotation 19, a
constant torque is achieved upon pulling on the release trigger 15.
By rotation of the guide path 20, the rotary pulley gearwheel 34,
which is integrally formed in this exemplary embodiment on the
rotary pulley 33, is also rotated about the axis of rotation 19.
This rotary pulley gearwheel 34 engages in a rack 32 of a
compensating rocker support 31. The compensating rocker support 31
is illustrated separately once again in FIG. 4 and is mounted on
the guide body 28 so as to be displaceable in the coupling device
housing 36. By pulling on the release trigger 15, the compensating
rocker support 31 is displaced along the guide body 28 via the
rotary pulley 33, which forms the step-down gearing 18 here, in
conjunction with said compensating rocker support 31. During this
movement the compensating rocker support 31 entrains, via the
compensating rockers 26, the tension cables 21, which are fixed on
the compensating rockers 26 by means of the corresponding tension
cable fixing means 43, of the Bowden cables 16 leading to the
individual buckles 1. The compensating rockers 26 are each
rotatable about the compensating rocker pivot points 27 thereof
and, by means of twisting of the respective Bowden cable 16,
compensate for possible deviations in the tensioning distance
between the individual Bowden cables 16. The Bowden cables 16
transmit the tensioning movement to the respective buckles 1. In
each buckle, the tension cables 21 are fixed on the transmission
parts 23. By tension being applied to the tension cable 21, the
transmission parts 23 are in each case displaced within the buckle
1 in such a manner that they displace the respective counter
locking bar 6 from the locking position thereof into the unlocking
position thereof. How this takes place in detail will be explained
further below with reference to FIGS. 17 to 24.
[0041] In the exemplary embodiment shown, a ratchet mechanism is
integrated in the step-down gearing 18, said ratchet mechanism
locking the step-down gearing 18 in the restoring direction thereof
for as long as the blocking device 22 is in the blocking position
thereof. In the exemplary embodiment shown, the blocking device 22
is a lever which is pivotable about the blocking device axis of
rotation 37 fixed on the coupling device housing 36. The spring 29
presses said lever of the blocking device 22 into the blocking
position thereof. The toothing 11 formed on the blocking device 22
engages in the toothing 35 of the rotary pulley 33. The toothing
engagement between the toothings 11 and 35 is configured in such a
manner that, when the release trigger 15 is pulled, the rotary
pulley 33, and therefore the guide path 20, can be rotated at the
same time in said direction, but is blocked in the opposite
direction. This has the consequence that, after the release trigger
15 is drawn completely out of the release trigger housing 25, the
counter locking bars 6 of the buckles 1 remain in the unlocking
position thereof until the blocking devices 22 are brought into the
release position thereof, by pressure being applied to the
actuating surface 44, in which release position the toothings 11
and 35 are no longer in engagement with each other and the
restoring elements 9, which here, in this exemplary embodiment, act
directly on the counter locking bars 6, can bring the entire
mechanism back again into the starting position, in which the
counter locking bars 6 are in the locking position thereof.
[0042] FIGS. 5 and 6 show an alternative exemplary embodiment of a
release trigger 15 for the first exemplary embodiment. The release
trigger housing 25 here is reduced to the abutment 38. The entire
abutment 38 is illustrated in FIG. 5. In FIG. 6, the cover plate of
the abutment 38 has been omitted, and therefore the fastening of
the sheath of the Bowden cable 16 is seen. The alternative of a
release trigger 15 that is shown in FIGS. 5 and 6 makes no change
to the described operation of the first exemplary embodiment.
[0043] FIGS. 7 and 8 show a second exemplary embodiment according
to the invention which substantially corresponds to the first
exemplary embodiment, and therefore only the differences will be
discussed here. FIG. 7 shows an external view and, in FIG. 8, the
cover 30 of the coupling device housing 36 has been removed. The
substantial difference over the first exemplary embodiment consists
in that a Bowden cable 16 between the release trigger 15 and the
coupling device 17 and, correspondingly, also a release trigger
housing 25 or an abutment 38 has been omitted. In this second
exemplary embodiment, the release trigger 15 is arranged directly
on the coupling device 17. This makes no change to the operation of
said release trigger and to the entire operation of the step-down
gearing 18.
[0044] FIGS. 9 to 11 show a third exemplary embodiment according to
the invention of a buckle assembly having only two buckles 1. FIG.
9 again shows an external view, and FIG. 10 shows an illustration
in which the cover 30 has been removed from the coupling device 17.
FIG. 11 shows an exploded illustration of the third exemplary
embodiment. In this exemplary embodiment, by means of a reduction
in the number of buckles 1, the number of compensating rockers 26
required is also reduced. A single compensating rocker 26 to which
the tension cables 21 of the two buckles 1 are fixed in the tension
cable fixing means 43 suffices here. Otherwise, the operation
likewise corresponds to that described in the first exemplary
embodiment.
[0045] FIG. 12 shows by way of example a fourth exemplary
embodiment according to the invention having two coupling devices
17. In FIG. 12, the cover 30 has again been removed from the
coupling devices 17, and therefore it is possible to see into the
interior of the coupling device housing 36. The coupling device 17
provided for activation by four buckles 1 corresponds to the first
exemplary embodiment. The second coupling device 17, which is
connected to only two buckles 1, corresponds to the third exemplary
embodiment. However, the two coupling devices 17 are connected to a
release trigger housing 25 via a Bowden cable 16. A pulling on the
common release trigger 15 actuates the two coupling devices 17
simultaneously and therefore all of the buckles 1 of this exemplary
embodiment. In order to provide a compensating possibility in this
case, in this exemplary embodiment a compensating rocker 26, which
is rotatable about the compensating rocker pivot point 27, is
likewise provided on the carriage 45, which is mounted in a
longitudinally displaceable manner in the release trigger housing
25.
[0046] FIGS. 13 and 14 show a release trigger 15 which is usable as
an alternative in the exemplary embodiment according to FIG. 12 and
into which the length-compensating function for the tension cables
21 is directly integrated. This involves a common tension cable 21
which is guided around a compensating path 39 within a release
trigger 15 which is of two-shell-type construction here. In FIG.
14, the release trigger housing 25 of this exemplary embodiment is
illustrated in open form such that the compensating path 39 can be
seen. For the fastening of the sheaths or casings of the Bowden
cables 16, a corresponding abutment 38, which is likewise
illustrated in open form in FIG. 14, is also provided here.
[0047] FIGS. 15 and 16 show an exemplary embodiment of the
invention in which the buckle assembly has a single buckle 1. The
latter is directly connected via a corresponding Bowden cable 16 to
the release trigger 15, which is arranged remotely. In this manner,
even with just a single buckle 1, the counter locking bars 16 can
be remotely actuated by pulling on the release trigger 15. Since,
in this exemplary embodiment, when the release trigger 15 is
pulled, the counter locking bar 6 of a single buckle 1 merely has
to be pulled counter to the restoring elements 9, a coupling device
17 and a corresponding step-down gearing 18 have been omitted
here.
[0048] FIGS. 17 to 24 now show different illustrations of the
buckles 1 as used in the exemplary embodiments described
previously. Only a single buckle 1 or the components thereof are
illustrated in each case. FIG. 17 shows a side view and the section
plane AA. FIG. 18 shows the section along the section plane AA.
FIG. 19 shows a top view of the buckle 1 and the section plane BB.
The section along the section plane BB is illustrated in FIG. 20.
In FIG. 21, the buckle 1 is illustrated in an exploded
illustration. FIG. 22 shows the transmission part 23. FIG. 23 shows
a pair of counter locking bars 6. FIG. 24 shows the first buckle
component 2 in a separate illustration.
[0049] In FIGS. 17 to 20, the locking bars 4 of the first buckle
component 2 and the counter locking bars 6 of the further buckle
component 3 are in each case in the locking position thereof. In
said locking position, the locking bars 4 each engage behind a
locking surface 5 of the further buckle component 3. In this
position, the counter locking bars 6 use the supporting surfaces 7
thereof to block the locking bars 4 in the locking position
thereof. In order to be able to bring the locking bars 4 into the
unlocking position thereof, in this exemplary embodiment the
counter locking bars 6 have to be brought into the unlocking
position thereof so that the supporting surfaces 7 release the
locking bars 4. This can take place, as already described, manually
by reaching, for example, with one finger in each case into the
engagement openings 12 and pressing on the actuating surfaces 13
and 14 of locking bar 4 and counter locking bar 6. By means of this
manual actuation, the counter locking bars 6 are pushed back
counter to the prestress of the restoring elements 9, which are
designed here as helical springs, into the further buckle component
3 such that the supporting surfaces 7 release the locking bars 4.
By appropriate pressure being applied to the actuating surfaces 13
thereof, the locking bars 4 can then be pivoted inwards. In the
process, pressure has to be exerted counter to the resilient limbs
8, which are designed as restoring elements, of the locking bars 4.
If locking bars 4 and counter locking bars 6 are in the unlocking
position, the first buckle component 2 can be pulled out of the
housing 10 of the further buckle component 3.
[0050] In order then to be able to bring the counter locking bars 6
from the locking position thereof into the unlocking position
thereof not only manually by means of the actuating surfaces 14
thereof but also remotely via the release trigger 15 and the
transmission line 16, a transmission part 23 which is mounted in a
longitudinally displaceable manner is provided in the buckle 1.
This transmission part has a tension cable fixing means 43 into
which a tension cable 21 of a corresponding transmission line or of
a corresponding Bowden cable 16 can be fitted. A control pin 40 of
the transmission part 23 engages in a free space 41 in the counter
locking bars 6. This free space 41 is bounded by the stops 42. By
pulling on the tension cable 21, which is not illustrated here but
is fastened to the transmission part 23, the transmission part 23
is displaced in the housing 10 of the further buckle component 3.
As soon as the control pin 40 of said transmission part comes into
contact with the corresponding stops 42 of the counter locking bar
6, the counter locking bars 6 are carried along and, by compression
of the restoring elements 9, pulled into the unlocking position
such that the counter locking bars 6 thereby release the locking
bars 4 by means of remote triggering. The geometry of the free
space 41 and of the stops 42 is dimensioned in such a manner that,
when the counter locking bars 6 are manually actuated, a clearance
is provided between the transmission part 23 and the control pin 40
thereof such that, when the counter locking bars 6 are manually
actuated, the transmission part 23 is not carried along but rather
enters into action only in the event of remote triggering via the
transmission line 16.
[0051] It can be seen particularly readily in FIG. 24 that, in the
exemplary embodiment shown, the locking bars 4 are equipped with
oblique surfaces 24 with which said locking bars bear against the
locking surfaces 5. The existence of the oblique surfaces 24 makes
it possible, when the counter locking bars 6 are in the unlocking
position thereof by means of remote control, to bring the locking
bars 4, by appropriately firm pulling on the first buckle component
2, into the unlocking position thereof without having to press
against the actuating surfaces 13. This serves to the effect that,
for example, in an emergency situation, after the counter locking
bars 6 have been brought into the unlocking position thereof by
means of remote triggering, the locking bars 4 of the various
buckles 1 of the system do not have to be released individually,
but rather, by means of appropriately vigorous pulling on the first
buckle components 2 or straps connected thereto, the locking bars 4
can be brought into the unlocking position thereof in order thereby
to be able to separate the buckle components 2 and 3 from each
other. The forces required for this purpose depend on the angle of
the oblique surfaces 24 and on the elastic properties of the
restoring elements 8 of the locking bars 4 and can thus also be set
in a corresponding manner. For the sake of completeness, it should
be pointed out that, in the exemplary embodiment shown, the locking
surfaces 5 and the locking bars 4 have corresponding oblique
surfaces for resisting the movement of the respective locking bar 4
from the locking position thereof into the unlocking position
thereof when the first buckle component 2 is pulled off from the
further buckle component 3. However, corresponding oblique surfaces
24 can also be provided only on the locking bar 4 or on the locking
surface 5. It should also be pointed out, for the sake of
completeness, that the restoring elements 8 and 9 of the locking
bars 4 and counter locking bars 6 can also be designed differently.
In both cases, resilient regions of the respective locking bars or
counter locking bars or additional spring elements, such as, for
example, the restoring elements 9 realized here may be involved.
Furthermore, however, it should also be pointed out that counter
locking bars 6 and locking bars 4 can carry out both a pivoting
movement and a linear movement on their path from the locking
position thereof into the unlocking position thereof and back.
[0052] Strap fastening slots which are visible in the figures and
with which the buckle components 2 and 3 can be fastened to straps
or the like are provided on the buckle components 2 and 3. Of
course, other fastening means for fastening the buckle components 2
and 3 to straps or to other bodies can also be provided on the
buckle components 2 and 3. The same also applies for all of the
other components of the buckle arrangement according to the
invention. For example, fastening means, such as, for example,
strap slots, for fastening said components to straps or to other
bodies, can also be provided on the coupling device 17, the release
trigger housing 25, the abutments 38 or else on the transmission
lines 16.
TABLE-US-00001 Key to the reference numbers: 1 Buckle 2 First
buckle component 3 Further buckle component 4 Locking bar 5 Locking
surface 6 Counter locking bar 7 Supporting surface 8 Restoring
element 9 Restoring element 10 Housing 11 Toothing 12 Engagement
opening 13 Actuating surface 14 Actuating surface 15 Release
trigger 16 Transmission line 17 Coupling device 18 Step-down
gearing 19 Axis of rotation 20 Guide path 21 Tension cable 22
Blocking device 23 Transmission part 24 Oblique surface 25 Release
trigger housing 26 Compensating rocker 27 Compensating rocker pivot
point 28 Guide body 29 Spring 30 Cover 31 Compensating rocker
support 32 Rack 33 Rotary pulley 34 Rotary pulley gearwheel 35
Toothing 36 Coupling device housing 37 Blocking device axis of
rotation 38 Abutment 39 Compensating path 40 Control pin 41 Free
space 42 Stop 43 Tension cable fixing means 44 Actuating surface 45
Carriage
* * * * *