DE1557534C - Buckle for seat belts - Google Patents

Description

1 2

The invention relates to a closure A particularly advantageous structure is thereby Buckle for seat belts, consisting of one with that of the buckle housing items

the one belt part connected to the slide-in plate and holding guide body opposite the

a housing connected to the other belt part is fixed by a detent spring.

receiving housing with a recess in FIG. 5 Further details and advantages of the invention

Slide-in plate protruding locking projection and a result from the following description of the in

Spring striving to intervene between Rast ^ - the drawing illustrated embodiments,

to ensure protrusion and slide-in plate so- It shows

as with a pivoted handle, in Fig. 1 a top view of the buckle,

whose pivoting movement this engagement between io F i g. 2 shows a cross section of the buckle in FIG

Latching projection and slide-in plate against the spring level II-II of FIG. 1, with its handle

force is to be lifted. has taken up its closed position,

Buckles of this type are known. You Fig. 3 is a similar sectional view, wherein the mainly find their open, raised position retracted on seat belts for power grips and aircraft passengers use. 15 has taken

Practice has shown that buckles Fig. 4a to 4j all individual parts of the in Fig. 1

of the known type in the event that they have high buckles shown,

stungen are exposed, still some inadequate- Fig. 5 is a plan view of a further execution

have a certain amount of unfastening of the buckle,

nonchalance arises. So are z. B. the locking projections, 20 F i g. 6 is a cross section of the buckle

during the closing process in a recess in the plane III-III of FIG. 5, the handle bar

Insert the slide-in plate, usually within its closed position,

a bend of the housing pivotably mounted. 7 is a similar sectional view, the

gert. These bends, however, tend to have the handle bar in its raised position

which in the event of sudden tensile load, to bend up, has 25,

so that there is a risk that the locking projection Fig. 8a to 8j all the individual parts of the in Fig. 5

with deformation of some parts of the buckle housing shown buckle and

it releases the slide-in plate. F i g. 9 a modification of the handle of the

In general, there is a locking buckle in such buckles.

also have the disadvantage that they are bulky and 3 ° The buckle according to the first embodiment

have protruding parts, so that in the event of accidents the approximately example has a housing 1 with each

There is a risk of injury. one guide channel 2 on each side and one

Also with buckles of the known locking projection 3 is near one end for the

Kind of the person concerned often unable to lock engagement with a square recess 5 in

to see without a doubt whether the engagement between 35 of the slide-in plate 4 on. The receiving housing 1 has

Insert plate and locking projection actually secure an opening 6 for performing the

came about. Belt 8 and to fix the end of the belt by means of

The aim of the present invention is therefore to provide a square bar 7.

a buckle for seat belts to The sliding plate 4 is also with a similar

scliaffen, with the smooth closed outer shape 40 borrowed breakthrough 9 to carry out the other

even extreme loads without impairment of belt 10 and to determine its belt end

their functionality reliably withstands and thereby provided in the known manner.

art is built up, that in any case the guarantee The receiving housing takes a guide body

it is given that the locking projection is actually on 11, which for this purpose on both sides

High and reliable in the corresponding opening 45 with a step or a base 12 for the

the slide-in plate is engaged. Engagement with the guide channels 2 of the receiving

This is achieved according to the invention in that housing 1 is provided. With such in the admission

the handle bar is created on its own guide body 11 inserted into the housing 1

housing inserted guide body is hinged, a gap B between the back of the

with a first 5 ° main part A of the guide body 11 and the upper one in the handle bar parallel to the axle pin

Cross pin is set in the locking position side of the receiving housing.

ment of the buckle parts below the front end of each socket 12 of the guide body 11 is with

the slide-in plate comes to rest and another one recess and at its extended end

Transverse pin, which is provided with a hole 14 above the front end of the inlet,

push plate comes to rest, so loosely mounted 55 A handle bar 15, which over the guide body 11

and by means of guide surfaces on the guide body fits, has an ear-shaped extension 16 with a

and is performed on the handle that this second hole 17 on each side. These holes 17 and

Cross pin - when opening the handle, the holes 14 in the sockets 12 are aligned and

shifted backwards - the front end of the inputs are connected by means of a pivot pin, 18, whereby

push plate releases the same time from the first 6 < > The handlebar 15 can be pivoted on the guide body

Cross pin via which is firmly attached to the housing base 11.

th locking projection is lifted. Each of which is made in one piece with the handle bracket 15

A particularly safe mode of operation, also formed ear-shaped projections 16, has an unbei Most frequent use is achieved by having a round opening 20 with a straight guide surface that the loosely mounted in the handlebar second 65 19, which at a certain angle to Cross pin with a rotatable sleeve is preferably plane of the receiving housing 1, as well as one made of low-friction material, such as nylon, covered downwards into a recess 35 of the Aufist, receiving housing 1 extending approach 21. The

3 4

Opposite approaches 16 of the handlebar 15 are To open the buckle, the handle means of a pin 22 is connected. Bracket 15 - rotating around the axle pin 18 - through - A cross pin 23, loosely pushed on, carries a finger pressure raised against the rounded end D of the handle bracket made of plastic (nylon) or a similar material. Here is the sleeve 23 '. It lies rotatably on the recess 5 provided with a sleeve transverse pin 23 on the guide 13 of the guide body 11 and extends to the rear surface 19 of the non-circular opening 20 through the non-circular opening 20 in the handle 15 and shifted and over the recesses 13 in the guide Lateral guide channels of the receiving body 11 are rolled until it exposes the front end C of the housing 1. Simultaneously moves

The guide body 11 with the handlebar 15 io the transverse pin 22 around the axle pin 18 in an arc shape

connecting axle pin 18 carries the with a central upward, whereby the front end C against the

Bore provided adjusting part 24, which with its pressure of the arc-shaped in the middle

The bottom part 24 'is pressed upwards into a central part of the receiving tongue 28 of the spring 26,

housing 1 located adjusting opening 25 engages, whereupon the latching projection 3 of the receiving housing 1

through the guide body 11 and the handle 15 15 from the recess 5 in the insert plate 4

rigidly held in place in relation to the receiving housing I disengages.

are. The control part 24 has to limit the end position up to which the handlebar 15 to

Displacement of the cross pin 23 a vertical opening of the buckle can be raised

Surface G on. can, is determined by the boundary surface G of the

A spring-on part 24 determines the main part of the guide A "o, which with the displacement of the (

Slide 11 attached. For this purpose, the spring of a transverse pin 23 provided with a sleeve is limited.

with a passen- in a slot 34 in the main body A in order to prevent from inadvertent

the upstanding extension 33 is provided. It has lifting of the handlebar 15 the receiving housing

Furthermore, on each side an arched downward of the locking buckle releases the slide-in plate 4,

directed wing 27 on. This wing 27 is resting 25, it is useful to arrange the items in such a way that

both on the cross pin 23. In addition, the spring only then has a release of the insert plate 4

a central upwardly directed, the Rastvor- takes place when the handlebar 15 around a large

Jump 3 of the receiving housing 1 superimposed angular amount has been raised. Thus, -

Tongue 28, for example, when the handlebar 15 is in

A cover 29, the sides of which has caught in the 3 ° jacket of its wearer and thus the built state of the buckle is slightly lifted from the guide, an unintentional opening channels 2 of the receiving housing 1 are detected, the locking buckle can be avoided,
has an upwardly curved edge 30, which consists of relatively simple individual parts in a downwardly curved end 31 of the handle, which is hooked with a small clip 15. 35 wall assembled and in their corresponding

A rectangular end position is held in the middle of the guide body 11 by means of the actuating part 24

Extension piece 32 arranged to be over-.

moderate bending of the cross pin 23 to prevent the second embodiment of the lock

if the buckle is gripped to lift the front end C - with the exception of a few modifications -

latched slide-in plate 4 a force is exerted. 40 rungs - the same individual parts as the first

The tongue 28 of the spring 26 can guide the front end C. These changes are intended to do that

hold the insert plate 4 resiliently in its position, first embodiment in structure and in func-

if the slide-in plate can be improved even further from a functional point of view through the space B,

between the housing 1 and the guide body

11 is inserted, the front end C in its 45 a steel core 23 ', on which rotatable several

Position between the pin 22 and the movable made of plastic (nylon) or similar material with

Cross pin 23, which sleeves produced by the side wings 27 with low frictional resistance

the spring 26 is pressed downwards, are supported 23a to 23c,

ten is. When the handlebar 15 is raised, the moves

When the buckle is closed, the 50 sleeved cross pin 23 moves backwards

Insert plate 4 through the between the recess 13 and the guide surface

receiving housing 1 and the guide body 11 formed 19 of the non-circular opening 20. Here is the central

deten intermediate space B with its front end C in lere sleeve 23 c on an elevation 37 of the guide

the receiving housing 1 overcoming the body 11 and the front end C of the insertion

Tension of the spring 26 is introduced until the right-hand 55 plate 4 is attached. The pin 23 'tries to counteract it

angular recess 5 to rotate clockwise in locking engagement with the locking. Also tried

projection 3 of the base plate of the housing 1 comes. the one with the arched wings 27 of the spring 26

In this closed position, the pair of sleeves 236 in contact with the core 23 '

buckle, the front end C of the insert plate 4 must be turned clockwise while the

between the two transverse pins 22 and 23 and 60 is in contact with the guide recess 13 standing

also tried in its position by the downwardly acting sleeve pair 23 a, the steel core 23 '

Pressure of the central tongue 28 of the spring 26 is held. turn counterclockwise. To this

These two cross-pins limit the upward manner in the moment of the displacement,

displacement of the slide-in plate 4 and prevent frictional forces acting on the transverse pin 23.

that it is lifted out of engagement with the receptacle 65 so that the cross pin 23 when moving the

housing 1 releases. Such a loosening would occur, handlebar 15 slides smoothly and evenly,

if a force were exerted on the belt, the To fix the guide body 11 in his

is greater than the force of the spring 26. End position is a spiral spring "is provided, one of which

End is inserted into a formed in the outermost end of the guide body 11 slot 40 and the other end of which presses on a pin which is inserted into a hole in the base plate 25 intervenes. This holding device corresponds in its function to that of the actuating part 24 in the first exemplary embodiment.

The second embodiment thus operates in essentially the same way as the first Embodiment. However, by using of the sleeves 23a to 23c due to frequent handling or actuation of the handle bar 15 occurring wear of the various contacting buckle parts is greatly reduced.

Alternatively, the handlebar 15 can be made from a single piece of wire. The ends are designed as a bearing pin 51. The handle bar 50 has a U-shaped bay 52 on each side, which in their function is roughly the. the non-circular opening 20 in the two illustrated embodiments ao shape corresponds to the buckle.

Claims (3)

Patent claims: 1. Buckle for seat belts, consisting of one connected to one belt part Insert plate and a receiving housing connected to the other belt part with a recess in the insert plate incident locking projection and a spring that strives to engage between To ensure locking projection and slide-in plate as well as with a pivotable Handlebar, during the pivoting movement of which this engagement between the locking projection and the slide-in plate is to be canceled against the spring force, characterized in that the handle bar (15) on its own guide body (11) inserted into the receiving housing (1) is articulated, with the handle bar parallel to the axle pin (18). a first transverse pin (22) is set is that in the locking position of the buckle parts (1, 4) below the front end (C) of Insert plate (4) comes to rest, and another cross pin (23) above the front end (C) the slide-in plate comes to rest, so loosely mounted and by means of guide surfaces (13 or 19) is guided on the guide body and on the handle that this second cross pin - Moved backwards when opening the handle - the front end (C) of the slide-in plate releases the same time from the first transverse pin (22) on the fixed on the housing base attached locking projection (3) is lifted. 2. Closure buckle according to claim 1, characterized in that the second transverse pin (23) loosely mounted in the handle bar (15) with a rotatable sleeve (23 'or 23 a, 23 b, 23 c) is preferably made of low-friction material such as nylon, is covered. 3. Closure according to claims 1 and 2, characterized in that the buckle housing individual parts (7, 15, 18, 22, 23, 26) holding the guide body (11) fixed relative to the housing (1) by a detent spring (28) is. For this purpose 2 sheets of drawings