DE1557462B1 - Buckle for seat belts - Google Patents

Description

1 2

The invention relates to a buckle for securing the notches are dimensioned so that the release handle from seat belts, consisting of. one of the rear housing ends at one end of the belt can be pushed into the slot, attached slide-in tongue and one with the and - coming to the system on the projections the end of the belt connected to the housing, with - to a limited extent around the between the the axial line that extends over both projections when inserting shoulders on the insertion tongue 5 Shoulders on the bottom wall of the receptacle is pivotable, and that also a holding member flat housing and grab one in the receiving housing from the rear end of the housing into the housing Tendes locking member from the slide-in tongue and can be used in such a way that it is the release handle - against the receiving housing in the locked position is held by the projections - and the locking member Locking position in one of the pushing-in or back-up 10 and holding the springs in the receiving housing, pulling out the insertion tongue permitting release point- By using this simple in the press-

The buckle is designed to counteract the force of springs using a release process The handle is slidable, which is inexpensive with one outside seat belt, because it has more and processing operations lying within the receiving housing, e.g. B. the application of cut provided and in the receiving housing so 15 wind od. The like. Eliminated.

is held that it is relative to the housing in limited- According to a further embodiment of the counter-

system scope is pivotable, so that it is with the prior invention, it is advantageous that the the section lying within the housing, the locking member in the receiving housing with play only in Displacement of the locking member from the locking longitudinal direction of the latter is slidably guided and position of the same causes. 20 has recesses on its underside with which

A disadvantage of these known buckles for it engages over the tongue part of the insertion tongue and Seat belts are hinge pins, rivets or something that lifts them off the bottom wall of the screw-on are needed to take the buckle parts and prevent the Schulzu unite so that the assembling or the tern on the bottom wall with the shoulders of the Assembly of these buckles holds a relatively long time 25 tongue part in engagement.

takes and the manufacturing costs there- The movement of the locking member in the housing to

by are quite high. The slide-in tongue is released in one direction

With so many parts in use, the hazard is perpendicular to the normal direction of one of defects also not insignificant. Acceleration forces occurring in the accident, so that Many seat belt buckles are too expensive 30 the locking member is not free in the direction of the in their structure, because the storage of the mobile acceleration forces can move. As a result If parts are carried out on separate shafts or pegs, the buckle according to the invention also tends below that the manufacture of such buckles in severe accident conditions is by no means a matter of course open the production of simple stamped and pressed parts.

and their easy assembly is limited. 35 According to a further embodiment, it is

But even with relatively simple, it is useful that the shorter section of the L-shaped light Composable stamped and pressed parts against release handle within the receiving housing standing known seat belt buckles comes is, and that the holding member is between the you cannot do without the pin and base and the top wall of the receiving housing in their overall structure Rivets off. 40 extending transverse part and one of this

.A seat belt buckle must extend the high load to the front end of the housing and withstand acceleration forces z. B. in a car accident against the short section of the release handle appear. The main accelerator has the longitudinal part, the transverse part of the holding forces fall in the direction of travel of the link on cams on the bottom wall of the trailer immediately before the impact, therefore 45 must be supported by the housing, and so the release handle in the buckle the unusual forces in this system on the projections of the lid wall edges Resist direction and must not hold up by itself of the receiving housing.

to open. Finally, it is also advantageous that the

The object of the invention is to provide a buckle of the locking member between the short section of the

To create the type described for seat belts, 50 release handle and the transverse part of the retaining member angedie the use of the previously customary fastening is arranged, with the springs between the transverse part avoids medium, thereby verifying the assembly and the locking member are effective, such that the ~ simple "efr," to shorten the assembly time and the locking link is pressed into the locking position and in Manufacturing costs to; ,, reduce, but still kept the system on the short section of the release handle

meets the highest security requirements. 55 is.

According to the invention, this object is achieved by the following

solved that the top wall of the receiving housing an embodiment of a seat belt extend over the entire length of the housing - buckle described, and darden in the drawings Has slot, and that the top wall is made. It shows edges in the area of the front end of the housing, 60 Fig. 1 is a side view of the buckle in the through which the insertion tongue in the receiving-locked state,

housing can be pushed in, with two opposite - Fig. 2 a top view corresponding to Fig. 1,

lying, inwardly directed projections.

can be seen that the inside and outside of the partially in longitudinal section along line 3-3 in Housing lying sections of the release handle the 65 Fig. 1,

Spanning the slot and between them two notches Fig. 4 is a side view of the closed

each having one of the two edges buckle before locking or after unlocking Receives cover wall, with the edges and bars, partly in section and

3 4

5 is a perspective view of the apart by a holding member 45 in the compressed

differently tightened individual components of the buckle. Condition kept. This holding member 45 has one

The receiving housing 10 has a box shape, the transverse part 46 of such a height and width that it

Cross-section is rectangular and open at the ends. fits comfortably in the housing, and a longitudinal part

A slot 11 extends over the entire length 5 47 of such a width that it is the slot 11 in the

the top wall of the housing. The top wall spans the top wall of the housing. Forward is

Edges in the area of the front housing part 47 are cranked so that it forms a step 48

end of opposite projections 12, which forms in a smaller width, which through the slot 11

the slot 11 protrude from each longitudinal side and pass through. Ears 49 jump over the side

aligned shoulders 13 at right angles to 10 top wall edges at the slot 11 and cause

form these pages. together with the one on the underside of the lid

On the bottom wall 15 of the receiving housing 10 wall adjacent longitudinal part 47, that the holding member are provided to the projections 12 towards two shoulders 16 against tilting or rocking movement in the housing, which is secured by the inner surface of the bottom wall. When the lower edge of the cross-15 stick out. The shoulders 16 have the same exhaust 15 in part 46 of the holding member is urged by snap action supernatant from the adjacent end of the housing and continuing the cam 17, the front edge stops sen each have a vertical locking surface 16 α and 50 of the holding member 45 to the release handle 20 against the inclined inlet surface 16 b . At a distance from the shoulders 13, and the springs 37 and 39, which are pressed against shoulders 16, cams 17 on the bottom wall 15, the locking member are pressed together, are provided. Between the cams 17 and the latter against the short section 23 of the lower end of the housing there is a transverse slot 18 handle 20. In the transverse part 46 of the holding member 45 in the bottom wall 15 through which the nubs 51 to be attached are provided around the ends the springs 37 end of the belt 60 can pass. and 39.

The L-shaped release handle 20 has a notch each.

21 on each side at the transition from the long section 25 by first removing the notches 21 of the release

22 to the short section 23 of the L provided. When the handle 20 in engagement with the top wall edges Attaching the release handle 20 to the receiving housing are brought to the slot 11 of the housing, and 10 are the notches 21 on the edges of the while from the rear end of the housing with the short Slot 11 attached to the rear end of the housing and section 23 of the release handle within the housing, The release handle is pushed in along the slot 11 until 30 The release handle 20 is then inserted longitudinally in the housing rests against the projections 12. The short push until it rests against the projections 12. Bleed 23 of the release handle 20 is inside the locking member 30 with the housing therein arranged, while the long section 22 brought springs 37 and 39 also from the rear is located outside and usually the housing housing end inserted into the housing 10. To the covered. The release handle 20 can have a limited 35 conclusion, the retaining member 45 is in the same end of the Perform rocking motion, the width of the housing inserted so that the ears 49 on the Notches 21 rest in relation to the thickness of the slot surface of the housing. Also the neck part bordering top wall edges of the housing member is moved along the housing until the limit the extent of this pivoting movement. lower edge of the cross member 46 on the inclined

The rectangular locking member 30 fits in length and 40 surfaces of the cam 17 and eventually slides over

Height comfortably in the housing and is in it with play the cam snaps to fit the vertical

only apply surfaces of the same in a sliding manner in the longitudinal direction of the housing.

leads. On the underside, the locking link has two so that all individual buckle parts are without rivets,

over its entire width extending recesses - screws, pins or the like combined,

gene 31, the side walls 32 α so together 45 The seat belt 60 is on the receiving housing

run that the recesses 31 on the back 32 10 by a rod 61 with a teardrop-shaped transverse

of the locking member are tighter. Serving as a guide cut attached in the housing by means of the

Recesses 33 extend over part of the U-shaped bracket 62 is attached. To the

Width of the locking member from the front 35 of rod ends are formed projections 63, which in

over the recesses 31 to which they are open. 50 openings 64 at each end of the bracket 62

These depressions 33 have also been taken together. These openings are the same

running sidewalls 34, each of which is of the same shape as the protrusions, but of larger dimensions

speaking side wall of the adjoining vergen, giving them limited movement of the rod

depression 31 is parallel. allow without this being able to rotate.

The flat front 35 of the locking member is 55 The belt 60 is in the housing 10 through the

on the short section 23 of the release handle and slot 18 in the bottom wall 15 introduced to the

is pressed against it by springs 37. Blind holes around the adjusting rod 61 and then through the slot 18

38 near each end of the back 32 α form each led out again, so that the free end portion

a seat for the springs 37. (For safety reasons - the belt between the slot 18 from the

Two springs 37 each concentrically arranged edge 67 of the bottom wall 15 and the narrow

be net so that failure of a spring will pinch the sparkling edge 68 of the rod 61, and

tion of the buckle is not impaired.) The greater the belt tension, the stronger.

Another helical spring 39 protrudes through the insert tongue 70 has a flat tongue part

middle opening 40 and lies on the short abutment 71 and a fastening part 72

cut 23 of the release handle and exercises on this so- 65 has two shoulders 71 a at a lateral distance, whose

a lot of force from the fact that the long section 22 of the release straight sides are aligned with each other and parallel to the

handle are usually in contact with the top wall of the front edge 73 of the tongue part. Shoulders

Housing is held. The springs 37 and 39 are 71 α are dimensioned and arranged so that they

Shoulders 16 of the housing 11 are able to accommodate.

The leading edge 73 of the tongue part 71 has a central recess 74 and inclined ends 75 which into the recesses 33 in the locking member 30 when inserted into the housing and into the recesses 31 engage the shoulders 16 appropriately when engaging the shoulders 71a. By adapting the At the front edge of the tongue part, the slide-in tongue is guided when it is inserted into the housing, around the Bring shoulders 71 α with the shoulders 16 to coincide. This adaptation and the the pressure exerted on the tongue part by the springs 37 and 39 causes a rattle when the tongue is closed Buckle prevents.

The belt 85 is held on the fastening part 72 of the insertion tongue 70. The bottom 84 is at the transition 86 cranked from the tongue part 71 to the fastening part 72, so that the housing 10 and the insertion tongue 70 present a smooth flat underside when the buckle is closed.

The slot on the top 88 and the open ends of the fastener 72 on the insert tongue 70 are covered by a channel-shaped cover plate 90. The plate 90 is with the fastening part 72 connected by snap action, with their flange parts 91 in the open ends of the Fastening part sit.

When the buckle is used, the tongue part 71 of the insertion tongue becomes in the front end of the housing 10 inserted and pushed in further. Through the insertion movement of the slide-in tongue the locking member 30 is moved along the housing against the action of the springs 37. The release handle retains its normal position in which its long section 22 of the outer surface of the top wall of the housing is applied under the action of the spring 39. As soon as the locking member 30 moves far enough around the shoulders 71 ″ in the tongue part 71 in correspondence with the shoulders 16 on the bottom wall 15 to bring the tongue part down. This enables the springs 37 move the locking member 30 back to the short section 23 of the release handle. In this position you can the tongue part 71 does not stand out in front of the bottom wall 15 of the housing and the seat belt buckle is firmly and securely locked.

To open the buckle, the free end of the long section 22 of the release handle is raised, and so causes a pivoting movement of the release handle about the projections 12, whereby the short section of the release handle moves the locking member along the housing against the spring pressure until the Part of the tongue 71 of the slide-in tongue comes free. Thus, the tongue part can now move upwards from the Move the bottom wall 15 of the housing away and be pulled out of the housing 10. (If the When the lifting force on the long section 22 of the release handle ceases, the springs 37 bring them and 39 return the locking member 30 and the release handle 20 to their basic positions.)

Claims (4)

Patent claims: 1. Buckle for seat belts, consisting of a pull-in tongue attached to one end of the belt and a receiving housing connected to the other end of the strap, in the case of the insertion Shoulders on the slide-in tongue behind shoulders on the bottom wall of the receiving housing grip and a locking member sliding in the receiving housing from a slide-in tongue and the locking position holding the receiving housing in the locked position in a pushing-in position or pulling out the insertion tongue permitting release position against the force of springs is displaceable by a release handle, each with one outside and one inside the receiving housing lying portion is provided and held in the receiving housing so that it is pivotable relative to the housing to a limited extent is such that there is the displacement with the portion lying inside the housing the locking member causes the same from the locking position, characterized in that, that the top wall of the receiving housing (10) has a slot (11) extending over the entire length of the housing has, and that the lid wall edges in the area of the front housing end, through which the insertion tongue (70) can be pushed into the receiving housing (10) with two opposite, inwardly directed projections (12) are provided that the inside and sections (23, 22) of the release handle (20) lying outside the housing (10), the slot (11) and have two notches (21) between them, each of which has one of the two Receives edges of the top wall, the edges and the notches are dimensioned so that the release handle (20) can be pushed into the slot (11) from the rear end of the housing, and - to the Projections (12) coming to the plant - to a limited extent around the between the the two projections (12) extending axis line is pivotable, and that also a holding member (45) can also be inserted into the housing (10) from the rear end of the housing in such a way that it the release handle (20) - resting against the projections (12) - and the locking member (30) and the Holds springs (37) in the receiving housing (10). 2. Buckle according to claim 1, characterized in that the locking member (30) in the receiving housing (10) is slidably guided with play only in the longitudinal direction of the latter and on its underside Has depressions (31) with which it is over the tongue part (71) of the insertion tongue (70) engages and thus prevents their lifting from the bottom wall of the receiving housing (10) and thereby the shoulders (16) on the bottom wall engage the shoulders (71a) of the tongue portion (71) holds. 3. Buckle according to claims 1 and 2, characterized in that the shorter section (23) of the L-shaped release handle (20) is located within the receiving housing, and that the Holding member (45) between the bottom and the top wall of the receiving housing (10) itself extending transverse part (46) and one extending from this to the front housing end and longitudinal part (47) resting against the short section (23) of the release handle (20), wherein the transverse part (46) of the holding member (45) attaches to cams (17) on the bottom wall of the receiving housing (10), and so the release handle (20) in contact with the projections (12) of the lid wall edges of the receiving housing (10) holds. 4. Buckle according to claim 3, characterized in that the locking member (30) between the short section (23) of the release handle (20) and the transverse part (46) of the holding member (45) is arranged, the springs (47) between the Transverse part (46) and the locking member (30) are effective such that the locking member (30) in the The locking position is pressed and held in contact with the short section (23) of the release handle (20). 1 sheet of drawings Copy 109 547/67