DE1849496U - SAFETY LOCK FOR SEAT BELTS OD. DGL. - Google Patents

Description

M e r t e η s & Co, limited partnership, G-ütersloh i, Westf., Hülsbrocfcstr. 68-74

"Safety lock for seatbelts or the like."

The invention relates to a safety lock for seat belts in vehicles, such as motor vehicles, airplanes or the like. -

Such security locks must also be used in an emergency then still be easy to open if the total tensile force exerted by the belts in the lock is at least 120 kilograms * The G-e including the opening pressure on a clamping lever or the like should be. not greater than Be 20 kilograms.

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So far, security locks have been used to meet these requirements become known, which agree in their basic form to the effect that a flat, to the free End of a strap attached closing plate in a at the end of the other strap or the like. attached mouthpiece intervenes. This mouthpiece of known security locks has a flat bottom part with lateral Jaws, between which a clamping lever is mounted, which spring under the action of a tension spring or helical coil stands. The flat closing plate is provided with recesses, one of which is on the clamping lever Edge attached nose or crouch that protrudes from the bottom part. These well-known security locks however, are disadvantageous in that either the opening force for pulling out the rabbit is desirable in one short lever arm of the clamping lever is relatively large or when loosening the closing plate this in disadvantageous Must be lifted wisely to get out of the crouch,

The object of the invention is to create a safety lock that has a relatively small opening angle of the tensioning lever is only required to

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moderately low force to release the striker. This closing plate is supposed to be driven by the tensile force alone can be pulled out of the lock.

According to the invention, "in a safety lock for seatbelts or the like. with one stored in a mouthpiece Clamping lever and an associated clamping bar * which hold the inserted striker secures against unintentional pulling out, the clamping lever designed as a two-armed lever, its short lever, nose-like, carries the clamping bar freely movable, which is laterally in a guide track the jaw is guided. The clamping bar or a clamping bolt is against the by means of a spring Hare of the cocking lever pressed as a coil spring is mounted on the axis of rotation of the clamping lever. The side guideways in the jaws are roughly right-angled formed ^ with the preceding read the Movement of the tension bar against unintentional Hold shift *

With such a design the clamping bar are respectively "of the clamping bolt and the clamping lever in kraftsehlüssiger compound so that in the closing _f

position the inserted striker firmly against the bottom is pressed while "when opening the clamping bar lifts off the closing plate and this pulls out of the mouthpiece by the pulling action. To the holder of the closing plate on the one hand and you To make it easier to pull out when opening the lock, the striker is provided with an inclined surface, which fits into a recess in the floor. Such a designed safety lock shows very favorable Lever arm ratios, which on the one hand ensure a high closing pressure and thus a high breaking load and on the other hand, have a relatively low opening force for opening at a small opening angle »

An exemplary embodiment of the invention is shown in the drawing. Is show:

Pig. 1 a longitudinal section through a turnbuckle in the closed state,

Pig. 2a and 2b show a plan view with partial section on the same turnbuckle with the lock open,

3a shows a side view of the tensioning lever with a rabbit?

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JB ¹ Ig. 3b a side view of a jaw with a guide track,

Fig. 3c is a side view of the closing plate Side jaws.

The bottom TO of the mouthpiece of a security lock according to the invention carries two side jaws Ha and ! Ib., Each having an upper bore 12 for inserting an axis of rotation 13 of a clamping lever pivotable around it 14 have »This clamping lever 14 consists of an upper, longer covering arm 14a and one against the Bottom 10 protruding shorter than formed läs Arm 14b with a groove 14c. A clamping bolt 15 extending parallel to the axis of rotation 13 is supported in this groove 14c and is angled laterally guideway 16 out. TJm the axis of rotation 13 is a two-part helical spring 17 placed, the two outer free ends 17a of which the clamping bolt 15 against the -Hase 14b to press. The bracket 17b connecting the two spring parts 17 engages through the base 10 and gives the helical spring 17 the tension necessary to hold the clamping bolt 15.

The fixed to another Gürtende closing plate 18 is bent upward so that they are flush to the floor 10 _s hangs up against it by the clamping bolt 15 due to the pressure of the spring is pressed firmly in the closed position 17th A front inclined surface 18a engages in a longitudinal slot 10a of the floor 10 and thus locks the closing plate 18 to the floor. Lateral jaws 18b prevent the closing plate 18 from being pushed too far into the mouthpiece.

The guide track 16 is formed approximately at right angles and has a rabbit 18a. In the closed position, the clamping bolt lies in the lower part of the Mhrungsbahn 16; the horizontal part of the rabbit 16a forms an abutment against forces which want to pull the closing plate 18 out of the mouthpiece. To open the lock, pull on the arm 14a of the tensioning lever. The rabbit presses 14b _? which is conveniently located as a double nose on both sides of the clamping lever on the jaws, against the clamping bolt and pushes it up on the guide track. This movement is worth seeing through the increasing pressure of the ends 17a of the helical spring 17 and initially through the above

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read 16a. Only when the lever is pulled far up "is, the rabbit 16a gives the clamping bolt 15 upwards free, so that it stands out from the closing plate 18. A tensile force acts on the closing plate 18 a, it pulls out of the mouthpiece, whereby the inclined surface 18a provides a guide.

Due to the special design of the clamping lever as a two-armed lever with a läse for mounting the clamping bolt, favorable lever arm ratios are given, ^{1 to the} extent that the transmission ratio of the lever arm allows an opening force of less than 20 kilograms. The closing force is therefore very high, since the guide track bjsfcet the clamping bolt a cheap abutment.

The above-described safety lock is simple in structure and has easy-to-manufacture parts.

Claims (1)

ίΑ. 788 697 * 12.1261 Protection claims 1. Siclierlieitsscliloß for seat belts or the like. on vehicles, such as motor vehicles, etc., with one in one Mouthpiece mounted clamping lever and an associated clamping bar or the like. Which the inserted Closing plate secures against unintentional pulling out, characterized in that the clamping lever, designed as a two-armed lever, has a nose in which the clamping bar or the like. freely movable is, which is guided laterally in a preferably angled guide path of the jaws. 2. Safety lock according to claim 1, characterized in that the clamping bar or the like. by means of a spring mounted around the axis of rotation of the tensioning lever is pressed against the nose. 5. Safety lock according to claims 1 and 2 _S, characterized in that the spring mounted as a helical spring about the axis of rotation is constructed in two parts and has a central connecting bracket which is anchored in the bottom of the mouthpiece. 9 - 4 «Security lock according to claims 1 Ms 3? characterized in that the free ends of the helical spring press the clamping bar against the läse press. 5. Safety lock according to claims 1 "to 4, characterized in that the guide track is rectangular and formed with a protruding rabbit is. 6. Safety lock according to claims 1 to 5t - characterized in that the locking plate engaging in the mouthpiece has an inclined surface which engages in a recess in the bottom of the mouthpiece. 7. Safety lock according to claims 1 to 6, "characterized in that the closing plate is cranked is.