DE1920453A1 - Belt buckle, in particular for aviation purposes - Google Patents

Description

Patentanwlilf ·, _{nOrt /} rrt Dr, Ing.H. Negendank 1 9204b3

. . Dipl. Ing. H. Haudc

Dipt, Phys. W, Schmitt

8MUndi «n15, Mczsrtjfr.23

Tel. 5 330586

Jan R. Coyle

514 East Ghent Avenue

San Dimas, Calif./USA April 22, 1969

Lawyer File M-700

Belt buckle, especially for air ^i; driving purposes

Belt devices used for buckling loads in aircraft, Helicopters or the like or to buckle the plug stuff occupants, have belt buckles that during the In flight, exposed to considerable forces and sound vibrations are. These forces and vibrations sometimes fail or unintentional opening of a belt buckle. on the other hand should such belt buckles, in case they are used to buckle up serve an aircraft occupant, can be easily opened without that they accidentally touch the release mechanism to open.

Also, one should be used for the above purpose The belt buckle can be opened by an explosive or pressure charge in the event that the pilot or the crew member concerned is injured and is unable to use the release mechanism to operate. Another benefit of a belt buckle, the

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can be opened by a charge of explosives or gas ,, \ could consist of it. Loads of a parachute in a determinate. depending on the height, namely by the fact that the belt buckle is? is released when the parachute has reached the specified height. ·

The known belt buckles do not meet these conditions inV

satisfactory way. - ·; ^:

The invention is therefore based on the object of providing a strong, high-i to create resilient belt buckle that is carried out in a simple manner Actuation of a release mechanism, but not by in flight occurring forces and vibrations can be resolved. Included is based on a belt buckle, especially for aviation purposes, with an insert part that has a pawl, and a receiving part which has a recess for receiving the · - I

- f

Has latch. The belt buckle is characterized according to the invention characterized by latching means that detach the latch = in the -; Hold recess, and locking means that the VerkllnTiühg ^ -!

hold in a latching position in a detachable manner, in which the \

Pawl in the recess latches jsfc. -.-!

■. ■ .- ■■■ - j

The latching means can thus not be released from the latched J

■ ι position are moved if not the locking means in operated in a very specific and deliberate manner; after releasing the latching means, however, the insert part can be unhindered be separated from the receiving part. The latching means are therefore independent of the locking means and the arrangement is such that the locking means or the insertion part are not destroyed by forces exerted on the belt buckle

^can * - 2 - ■ 90904571146 ^!

The Gurtschnäile is constructed according to the invention such that they remains locked until the locking means is in a certain a Sequence of operating steps is operated, which, however not exercised by forces which accidentally or erroneously ' or as a result of an accident.

The latching means and the locking means are such

built to use an explosive or gas charge '

can be used in an emergency or in dependence on a

correct parameters, for example the plug height, the locking j solving agent solves, namely that an explosive force or a gas pressure is exerted on the latching means. ι

The belt buckle is of this type in a further embodiment of the invention built in that it represents a backlash-free connection that avoids the occurrence of annoying noises by itself, without that damping means must be provided between the relatively movable parts.

The belt buckle according to the invention is characterized by large Service life and a particularly simple structure; i.e., the belt buckle consists of few parts, which is the susceptibility to failure and the manufacturing cost is reduced.

In a further embodiment of the invention, the latching means have a latching slide that holds the pawl in the recess. The locking means that hold the latching slide hold in the latching position, have two actuators on, which is normally in a 'locking position

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are biased and must be moved to release the locking means in opposite directions, so that when a unintentional movement of only one of the actuating elements of the latching slide is not released and the latch is out of the recess mung can be moved out. Thus, the belt buckle can neither by an accidental movement of one of the actuators or by inertial forces acting in one direction on the lock ^ - funds are exercised, are opened.

In a further embodiment of the invention, an explosive or Gasla, manure are provided that the movable Verklinkungs-; slide moves.

To prevent dirt or other foreign bodies from getting into the belt! buckle enter is in a further embodiment of the invention the belt buckle is designed as a sealed unit in which all moving parts are essentially enclosed.

A preferred exemplary embodiment of the invention is explained in more detail with reference to the drawings. Show it:

Fig. 1 a perspective opinion a belt buckle, is, the individual parts of the belt Pig. 2 a view corresponding to FIG. 1, but in which the opinion Belt buckle released 909845/1146 Fig, 3 a perspective - 1} - buckle,

Pig. 4 is a plan view of the latched and locked belt buckle;

Fig. 5 is a side view of the buckle, Pig, 6 a cross-section along the line 6-6 in Fig. 5 ₃

FIG. 7 shows a view corresponding to FIG. 6, but in which the belt buckle is loosened,

Fig. 8 is a cross-section along line 8-8 in Fig. O, in which the belt buckle is latched,

9 shows a view corresponding to FIG. 8, in which the belt buckle is resolved

FIG. 10 a is a schematic view of the locking means in FIG their locked position,

Fig. Praise a schematic view of "the locking means in their loosened position,

Fig. Loc is a schematic view of the locking means in their unlocked position, in which they the latching means release.

The in FIGS. The belt buckle shown has an insertion part A and a receiving part B, each with approaches

" ⁵ " 909845 / 1U6

are provided for storing a pin 3, on which a strap 4 is attachable. The insert part A can for example be attached to the belt of a parachute for an aircraft occupant, while the receiving part B is attached to a belt with the clothing of the aircraft occupant is connected, so that the aircraft occupant when boarding the aircraft only the two Belt buckle parts must connect together. On the other hand, one of the belt buckle parts can also be used to anchor a belt can be used for loads, while the other part of the belt buckle is attached to a belt that holds the load in place.

The insert part A has an insert body 5 on which the Approaches 2 are molded. A pawl 6, which can engage in the receiving part B, protrudes from the insert body 5. Of the Receiving part B has a receiving housing Io on which the Approaches 2 are molded. In the receiving housing is on the Approaches 2 opposite end formed a recess 11 which is used to receive the pawl 6. In the receiving housing Io is a Verklinkungsschleber 12 slidably mounted in a U-shaped recess 13 of the receiving housing Io between a Latching position and a release position mounted movably is. The latching slide 12 is enclosed in the recess 13 by a plate 14, which is secured by fastening means 15 is attached to the housing Io.

There are locking means provided that the latch slide 12 hold in the latching position in which the latching slide holds the pawl 6 in the recess 11. ·

-S-

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To .den locking means two actuating elements 16, 17 , on which locking pins l8 and 19 are attached. The locking pins 18 and 19 extend through slots 16 and 21 of the plate 1 * J and are slidably connected to the latch slide 12 by pins 22 and 23. The locking pins 13 are preloaded into the locking position 'by a spring 2k , while the locking pins 19 are preloaded by a spring 25 in their locking position in the opposite direction. Grooves 18a are formed on one side of the slots 21 and 21 of the plate Ik , while grooves 19a are provided on the opposite side of the slots 20 and 21. The locking pins 18 and 19 are locked when they are seated in the corresponding grooves 18a and 19a.

When assembling the receiving part B, the locking pins 18 and 19 are inserted through the slots 2o and 21 and inserted into spaces which are formed by ribs 12a, 12b and 12c of the linking slide 12. The pins 22 and 23 are then inserted through openings 12d of the ribs 12a, 12b and 12c and through openings 18b and 19b of the locking pins 18 and 19, the spring 2k between the rib 12c and the adjacent locking pin 18 and the spring 25 between the Rib 12a and the adjacent locking pin I9

will
arranged / ζ whereby the locking pins 18 and 19 are pressed into the grooves I8a and 19a, that is, in the opposite direction.

Thereafter, the plate Ik and the slide 12, which are connected to each other by the Verrlegelungss pins l8 and 19, in db

192Ό453

U-shaped recess 13 of the receiving housing Io used, and the plate 14 is fastened to the receiving housing by the fastening means 15. Before the latching slide 12 into the U-shaped Recess 13 is used, two oppositely curved leaf springs 25 are installed, which the latching slide Press 12 into the latching position.

The arrangement so far described is in terms of its latching and locking properties and in terms of their safety and reliability characteristics are unusual simple. '

The pawl 6 forms an angle with the insert body 5 and has a surface 6 a which extends perpendicular to the end surface 5 a of the insert body 5. The surface 6a goes into a inclined surface 6b, which leads to an outer surface 6c, which 'runs essentially parallel to the end face 5a. Another Surface 6d leads from the outer surface 6c to an inclined surface 6e, which with the end surface 5a of the insert body 5 one Forms recess 6f. The pawl 6 is on its sides provided parallel surfaces 6g.

The recess 11 of the receiving housing Io and the latching slide 12 are provided with surfaces which are designed to be complementary in size and shape to the surfaces of the pawl 6 , so that the assembled belt buckle parts cannot twist in any direction.

909845/1146

Accordingly, the latching slide 12 (Figures 6 and 7) has an end flange 121 on which an end face 121a is formed which is opposite the end face 5a of the insert body 5. The face 121 also has a face 12a which runs perpendicular to the end face 121a and facing the surface 6a of the pawl, and a sloping surface 12b facing the sloping surface 6b of the pawl 6. Inside the recess 11, the insert body Io is provided with an inner surface 12c facing the outer surface 6e of the pawl, while an inclined surface 12 forms the outer wall of the recess 11 and lies opposite the inclined surface 6e of the pawl 6. At the end of the receiving body Io, a surface 121b is provided which, with the surface 12d, forms a lip 12f which is complementary to the recess 6f of the lower part On the side i3t the recess is delimited by inner side surfaces 12g which define the width of the recess and the like nd the side surfaces 6g of the pawl 6 are opposite.

When the pawl sits 6 in the recess 11 and the Verklinkungs is slide 12 as shown in FIG. Verklinkungsetellung shown 6 j, the pawl 6 is enclosed on all Steep of complementary surfaces of the receiving part so that the latch can be deformed in any direction * In order to avoid an upward movement of the latching slide 12, the insert body 5 is provided with a flange 5c which, together with the pawl 6, forms a groove 5 &. The flange 121 of the latching slide 12 protrudes into this groove when the latching slide is seated on the pawl.

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In this construction, the deformation of a component is caused by a corresponding counter component opposes a resistance, whereby the rigidity of the locked belt buckle is considerable is increased, moreover, none of them are engaged with each other standing surfaces provided with spikes or the like, the

when reversing the forces exerted on the belt buckle by a * Load could be exposed. It is also noteworthy that the latching and locking means are the belt buckle hold together without the insertion part of the locking means is detected, as will be described in more detail below.

The Verklinkungssohleber 12 is by the locking pins 18 and 19, the In the grooves 18a and 19a of the slots 2o and 21 ^! the plate 14 is seated, held in its latched position; locking pins 18 and 19 being urged into their closed position by springs 24 and 25 (Fig. 8). The locking parts 18 and 19 are made from the grooves 18a and; 194, 4aduttch galOst «. that the actuating elements 16 and 17 are moved in the opposite direction; However, two of the locking pins 18 or 19 remain in engagement with the corresponding groove 18a or 19a when only one of the two actuating elements 16 and 17 is moved.

The actuators 16 and 17 are laterally only by one Insert moveable, which is required to lock the locking pins, 18 and 19 against the ¥ and opposite the grooves 18a and 19a of the slots 2o and 21 to move. On the adjoining

909845/1 U6 BAD ORIGINAL

U-

Seldom the actuating elements 16 are formed sections 16a and 16b which fit into one another and each have an inclined surface. The length of this inclined surface in the direction of movement of the actuating elements 16 and 17 is greater than the maximum possible movement distance of one of the two actuating elements 16 and 17, but less than the sum of the maximum possible movement distance of both actuating elements. The inclined surfaces of the actuating elements 16a and 17a serve to ensure that the locking pins 18 and 19 _}, when the actuating elements 16 and 17 are in their locking position, have the correct spacing in the slots 20 and 21, so that the locking pins 18 and 19 of their own accord right one

a position in which they engage in the grooves 18a and 19a /. Another advantage of this arrangement is that even if one of the springs 2Ά or 25 can no longer hold its locking pin in the groove 18a or 19a, an unintentional

Movement of the other locking pin into the unlocking ' direction has the consequence that the sections 16a and 17a with each other} come into engagement, so that the other locking pin 18 or 19 is moved back into the groove l8a or 19a. To unlock the VerklinkungsSchieber 12 it is absolutely necessary that the locking pins 18 and 19 from the grooves 18a and 19a with be moved out on purpose. "Inertia, sound vibrations or momentary reversal of the forces are therefore not able to unlock the belt buckle. The locking means must therefore be released by hand or, in an emergency, by an opening force between the latching slide 12 and the slide-in part 5 acts (as will be described below) be opened. ·

- U - ftoms / iue

To prevent the receiving part of the belt buckle from entering Foreign bodies that affect the way the belt buckle is punctured.

to protect
The actuating elements 16 and 17 are provided with lugs 161, 171 which slide on the outer surface of the plate .1 * 1 and cover the slots 2o and 21 when the latching slide 12 moves.

In the event of an accident, the pilot or the crew members So badly injured that they can no longer operate the actuators 16 and 17 to the Loosen the belt buckle. In such circumstances the pilot or the crew member perish because he is unable to free himself from the plug stuff. To remedy this, lets the belt buckle according to the invention is provided with a device which releases the belt buckle by gas pressure. This facility can also be designed in such a way that it responds to a certain parameter, for example the flight altitude, if the belt buckle should loosen at a certain height in order to drop a load or supplies.

As in the pign. 4, 5 and 6 is shown for this purpose a bore 5o is provided, to which a channel 51 leads. In the An explosive can be arranged in the bore, which creates a pressure between the insert body 5 of the insert part and the end face 121a of the latching slide 12 can produce. In the channel 51, a detonator can be arranged, which is attached to a trigger mechanism (not shown) is connected. When the charge is ignited in the hole 5o, the latching slide 12

- 12 -

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Jß

immediately exerted a force that opens it; however, this force must be greater than the usual inertial forces that are not are able to open the locking means.

i- 13 -

90 9845/1 14 6

Claims (1)

Jan R. Coyle East Ghent Avenue San Dlmas, Callf./USA April 22, 19o9 Lawyer File M-7oo Claims Il belt buckle, especially for aviation purposes, with an insertion part that has a pawl, and a receiving part that has a recess for receiving the pawl, marked! characterized by Verklinkungsmlttel (12), which hold the pawl (6) releasably in the recess (11), and locking means (18 / I8a, 19a, 19), which hold the latching means releasably in a latching position in which the pawl is in the recess is latched . 2. Belt buckle according to claim 1, characterized in that the Eln3Chubteil an insert body (5) and the receiving part (13) have a receiving housing, on each of which a strap (4) can be fastened. 3. Belt buckle according to claim 1 or 2, characterized in _t . that the pawl (6) has the shape of a bar extending transversely to the insertion part (A) and having an inclined surface (6c) ', and 909845/1 U6 / Γ that the recess (11) one of the inclined surface of the Pawl detectable inclined surface (12d), so that the pawl after loosening the diluent (12) from the recess slides out. Belt buckle according to one of the preceding claims, characterized characterized in that the size and shape of the pawl (6) and the recess (11) correspond to a deformation of the To prevent belt buckle parts. 5. The buckle according to one of the preceding claims, characterized _(in that the latching means comprise a Verklinkungsschieber (12) on one of the Gurtschnallenteile (A, B) between the Verklinkungssteilung and a release position in which the pawl can be released from the recess, i is slidably mounted, and that the locking means a ^! have actuating means (16, 17) carried by the latching slide and used to release the locking means. 6. Belt buckle according to claim 5> characterized in that the Latching slide is mounted on the receiving part (B) of the belt buckle. 7. Belt buckle according to claim 5 or 6, characterized in that that the actuating device has two actuating elements (16, location 17), which is normally in a certain / relative are in relation to each other and can be moved in opposite directions to release the locking devices * _2- 909845 / 1U6 8. Belt buckle according to one of claims 5 to 7 »characterized in that the locking means are two in opposite}? ■ Direction of sliding, carried by the latching slide ^r Have locking elements (18, 19) which are pressed by a biasing device (2k, 25) in opposite directions, that a stationary component (14) is provided, which has oppositely directed grooves (18a, 19a) into which the locking elements of the Pretensioning device are pressed, and that the displaceable locking elements can be moved out of the grooves by the actuating device (16, 17) in order to enable a movement of the latching = slide (12) into the release position. ^! 9. Belt buckle according to one of the preceding claims in connection with claim 2 and 5 * characterized in that on the insert body (5) of the insert part (A) on which the pawl (6) is attached, in addition to the pawl, a shoulder (5a) is formed, on which an end face (121a) of the latching slide (12) rests when the latching slide is in its latching position, and that a device (5o) (51) is provided which a force between the shoulder of the insert body and the end face generates the Verklinkungsschiebers that the two drives apart, in order to overcome the locking means (18, L8A, 19, 19a) and to move the Verklinkungsschieber into the release position Io. Belt buckle according to claim 9 »characterized in that this Device (5o, 51) contains means for generating or releasing a compressed gas. ' ³ "909845/1 U6 11. Belt buckle according to one of the preceding claims in conjunction with claim 6, characterized in that the Einsöhübteil (A) has a spaced from the pawl (6) arranged flange (5c) which forms a groove (5d), and that the Verklinküngsschieber (12) has an end flange (121) which engages in the groove of the insert part when the VetfkiihküngSsGhieber is in its latching position and which can be moved out of the ¹ groove when the VerkÜnkungssehiebers moves into the release position. 12. Belt buckles according to one of the preceding claims in connection with claim 5 * characterized by a spring (125) » the latching slide (12) in the latching position prestressed * 13 «Belt buckle for one * of the * preceding claims in connection with Claim 5 and Claim 7, characterized in that the VerkliBkü'ngs slide (ic!) In a ¹ Ü-fÖrmlgefi recess (13) of the AufnähfflSgehäuses (Lö) de§ Äüfnähmeteils gliding bear * mounted-3St ^ aä & the U ^ föfniigg Äüänehiftuftg deä receiving housing and the Verklinküngsschieber from a plate (14) überäeökt wifdi in dei? VeifiegelüngääbSchnitte (18 ^ 19) formed siM, into which the Verleiüngselemente (18, 19) carried by the Veikiinküngssäieber engage '§ϋί 14. Belt buckle riäöK claim I3, characterized in that j the locking portions of the plate (14) extend along the U-shaped recess (13) of the receiving housing extending - ^H " 909845/1146 Have slots (2o, 21) through which the locking elements (18, 19) extend into the U-shaped recess of the Aufnähmegehäuses that the locking elements are connected to the latching slide by connecting means (12a, ι », c, 22, 23) in such a way are that the locking elements can be moved transversely to the slots, that the plate has opposing, offset to one another arranged grooves (1 & a, 19aj, which open into the slots, that a part of the locking elements through the biasing device (2H ₃ 25) in the one flood and the other part of the locking elements are pressed into the opposite grooves, and that the locking elements can be moved out of the grooves by the actuating device in order to be able to be displaced longitudinally to the slots. 15. Belt buckle according to claim 14, characterized in that the connecting means pins (22, 23) which are located across the latching slide (12) formed at a distance (12a-ib, c)
mutually arranged ribs / extend and on which the Locking elements are slidably mounted *, 16. The buckle according to Anspruch'15, characterized in that j _5, the biasing means acting in opposite directions on the ?, j pins (22, 23) mounted helical springs (24, 25) ^äufweisti; which are in engagement with the locking elements -t ■ '■ 17. Belt buckle according to one of claims 14 to 16, characterized characterized in that the actuating device (16, 17) is provided with lugs (161, I7I) which cover the slots. - 5 - SÜ9845 / 11A6 18 .. Belt buckle according to one of claims 14 to 17, characterized in that the two actuating elements (16, 17) »the parts. Actuating means are slidably mounted on the plate (14), that some of the locking elements (18) are connected to one (16) of the two actuating elements and the other ¹ locking elements (19) are connected to the other actuating element (17), and that the actuation elements have co-operating positioning means (16a, 16b) which position the locking elements (18, 19) relative to one another so that they snap into the grooves. 19 · Belt buckle according to claim 18, characterized in that the positioning means consist of sections (16a, 16b) of the actuating elements which have opposing, interlocking surfaces which position the locking elements relative to one another according to the position of the grooves when one of the two locking elements moves relative to the other of the two locking elements \ and thereby moves the associated locking element out of its groove. 909945 / 1U6