KR910006847B1 - Deflection device for a safety belt - Google Patents

Abstract

No content.

Description

Progressive deflection device for seat belts

1a shows a deflection device in a stationary state.

FIG. 1B shows the deflection device in the stationary state and in the locked position. FIG.

2 shows the pivoting device in a first detention position.

3 shows the deflecting device in a second detention position;

4 shows the body of the deflector.

5 is a cross-sectional view of the deflector.

6 shows an alternative embodiment of a deflection device.

7 shows an example of a deflector in which the lock is electrically started.

8 shows a deflection apparatus with a deflection roller.

9 shows the body of the deflection device according to FIG.

10 illustrates when the deflector of the optional embodiment is in an inactive state.

FIG. 11 shows a state in which the device according to FIG. 10 is activated in a second locked state.

12 is a cross-sectional view of the entire clamping surface.

13 is a sectional view showing an alternative embodiment of the clamping surface.

14 shows another alternative embodiment of the deflection device.

FIG. 15 shows a deflector having an integrated winder. FIG.

FIG. 16 shows a deflection device having an integrated automotive sensor.

FIG. 17 is a cross-sectional view of another alternative embodiment deflector without gripping device.

FIG. 18 is a view showing a holding state in which the deflection device according to FIG. 17 is caused by an accident.

FIG. 19 is a partial cross-sectional view taken along the line XIX-XIX of FIG. 17. FIG.

* Explanation of symbols for main parts of the drawings

1: Deflector 3, 3 ': Base plate

4, 4b, 5, 5n: Gripping surface (reinforced rubber plate) 7: Arm (pivot arm)

8: Mounting Pin (Rural Bearing) 10: Pin

12, 13 tooth type (grip surface) 14 body

15: Mounting Arm (Pivot Shaft) 16: Restricted Surface

17: belt slot 18: deflector surface

19: upper part 21, 21 ': surface

22: belt 23, 23 ': flange

24: mounting hole 30: chassis

32, 33: grip surface 34: hole

35: tension spring 36: molded article

38: bearing 38 ': mounting box

40: claw (engagement jaw) 41: solenoid

42, 49: Roller 42 ": Deflection Roller

45: support rib 47: support surface

48: opening 50: compression spring

50 ': Phage flange 53 ": Shaft

54: nut 57, 58: gripping jaw

59: carrier 60: reel

The present invention relates to a deflection device which is preferentially attached to a B-column of a vehicle for an occupant in the front seat of the vehicle to induce the locking of a belt and to absorb an impact caused by an accident.

Today's safety belts lock the reel winder in the event of an accident and transfer loads from the occupant to the chassis through the deflector. As a result of the film spool effect of winding the ring of the winder (allowing belt extension without reel rotation by loosening in continuous rotation) and pulling the belt between the winder and the deflector, the occupant experiences additional initial displacement. This can lead to unpleasant emotions, especially in small vehicles. Impacts may be applied to the steering wheel and the instrument cluster. To prevent this additional initial variation, it is useful to tie the belt directly to the deflector so that it is as close to the occupant as possible. Many releases have already been proposed for this purpose and they all use the locking principle according to DE-PS 1 481 969. Belt acts as a pulling force (belt withdrawal-force) is applied to the lever arm (L ₁₎ a lock chesang mounted able to rotate in the belt gripping force (clamping force) through a small lever arm (L _2).

Many different developments have been made over the years from this basic principle. The decisive criterion for each proposal is the clamping effect along the belt pulling direction and the clamping force on the gripping surface in repeated belt locking. Thus, DE-OS 2 420 484 describes a clamping device that operates substantially independently at different belt pulling angles. If the belt proceeds horizontally as shown in EP 0 034 702 the gripping effect is maximum (largest lever arm). However, this requires a high coefficient of friction μ greater than 1 to ensure no slip at the belt gripping. This requires a rough grip surface and therefore has a detrimental effect on the endurance (durability) of the fabric belt in which repeated locking operations occur.

It is also conceivable to use the gripping device in conjunction with the intended vulnerability, which is only activated at an average load of about 4KN belt pull in case of an accident. However, these devices require extremely stable winder reels. However, one of the most important advantages of a fully loaded deflection gripping device is that it can be equipped with a light and cheap winder reel because it no longer transfers the load to the winder. In addition, the film spool effect also occurs to some extent.

Another variant is shown in DE-OS 2 348 654, the prototype of which is shown in FIGS. 7 and 8 of DE-OS 2 540 302. This embodiment avoids severe batting surfaces, while it is not effective when the belt pull is in the horizontal direction. The gripping effect is not enough: there is a slip. In today's vehicles with many passengers (95% of the seating capacity), the horizontal belt can be pulled over the shoulder of the passenger. Moreover, in that it must be paired with an electromagnet to solve, there is a relatively large passage loss in the belt as a result of the large angle of rotation resulting in an unpleasant initial displacement of the occupant.

The present invention is based on the object of having a deflector having a means of directly holding the belt so that the gripping process occurs immediately in the shortest passage without slipping without damaging the belt and the belt pulling direction remains without adverse effects. I am doing it. This problem is caused by a tipping action similar to that of a spring loaded lever in the form of a loose belt gripping, if the two-stage catcher exceeds the intended deceleration (0.4 g) in normal locking rather than in an accident. In the event of an accident and high deceleration (about 10 g) it is solved by the present invention which has a second locking effect to grip the belt more completely and effectively to achieve a stable and non-slip load absorption. The first fastening device for continuous locking almost without belt damage according to DE-PS 1 481 969 is achieved with an improved lever ratio which requires a coefficient of friction μ of about 0.5. The transition to the locked position held by the load by rotating the deflector to a position where the belt is folded securely occurs by breaking the intended weakness at the belt tension of the intended load of about 4 KN only in the event of an accident.

In this position the belt extending below the winder is not loaded at all. Only a passenger load of about 8 KN acts on the deflector. Thus, only a part of the load is generated compared to a conventional deflection device, and therefore a weaker mounting structure and a fixing position on the chassis can be used. Continuous locking at small loads (about 0.4 g) during rotation and curve operation occurs within a range in which the belt pull is hardly detected due to the slight inclination of the deflecting device against the clamping rib 5 of the base plate.

This catching action occurs without damaging the belt between the composite materials without damaging the fabric texture. In addition, the belt does not stretch on locking, as in DE-OS 2 348 654, which does not have any adverse effect on the locking characteristics. Only in the event of an accident, gripping with belt deformation occurs, creating a non-slip, full load absorption lock.

In the present invention, the passage loss (belt pull) required to initiate the lock up to a belt pull force of up to 10 KN is only 5 mm in the deflector. Today's gripping without deflector causes film spool effects in the event of an accident, causing the belt to stretch by about 120 mm, causing head shocks whether serious or not.

According to a further improved advantage of the invention, during the initial catching period the deflection element can be inclined such that the two elastically / plastically deformable preclamping surfaces are joined, with a higher lever ratio. Accidentally defined large decelerations result in at least one deformable gross surface plastically deformed to a larger corresponding change in position of the deflection element, followed by a second gripping surface with a more effective belt grip. The aggressive clamping surface enters the engaged state.

According to a particular embodiment of the present invention, the deflection device is receiving a pretension (basic tension) with two mounting pins and is rotatably mounted on two pivot arms connected to the base plate through the intended weakness. In addition, the body of the deflection element is constructed from a part that is perforated and folded to form a semicircle, from which the two mounting arms extend axially and up to the two upward bending limiting pins. In order to have a particularly effective fastening of the belt due to accidental deceleration, the uneven grasping surface must be bent into a flange (having an L-shaped structure), and the gripping part must be shaped to engage it. In this respect the flange is seated on the base plate and the gripping part must be movable in this way so that the gripping part is formed by itself from the deflection element so that the gripping part is engaged with the L-shaped flange.

For convenience, the pivot arm has an opening with a circular mounting shaft hole for receiving a mounting pin on one side and a curved elongated member that engages in a holder, such as the shape of the base plate on the other. The pivot arms are arranged to be substantially horizontal at their initial positions and the deflector is inclined over the shoulder of the occupant in the driving direction and is strongly connected to the chassis.

Solenoids may be arranged between the deflection element and the base plate to activate the operation, responding to the electrical signals of the electronic self-sensing part and / or the braking contact, and performing the upward movement to initiate the gripping. In a convenient structural embodiment, a body, such as a perforated and folded part, may have two constrained surfaces with concave support surfaces and holes for roller axes, and are strongly arranged between two support ribs, two compressed rib surfaces and a bottom gripping surface. It can have one pivot axis. In this way, the body is provided with a friction arm for rotating the biasing roller. The body grips the round metal gripping surface on a rigid rubber column during the first catching process.

In the second catching process, the gripping occurs when the lower gripping surface is bitten by the gripping surface of the flange of the base plate. However, it is also possible to cause automatic shape adaptation of the gripping surface by rotatably securing the gripper to the base plate by spring compression. In order to improve the interfacial bonding of the gripping surfaces, a deflection element can be mounted together with its axis of rotation in the reflective bearing.

It is caused by joining the gripping surface like the gripping surface cut in two stages of gripping effect, and the flexible adhesive layer can provide the gripping surface with one uneven tooth shape. The winder of the belt may be connected directly in the housing of the deflector to simplify the structure and focus the two main parts. Furthermore, it is also possible to mount the vehicle-sense detector itself in an integrated manner in the deflection apparatus.

In this way, the movable sensing portion can be arranged in a deflection device mounted on the vehicle, acting on the active component of the sensing component, whereby the active component can be engaged with the gripping surface of the belt. The active part itself can be mounted to rotate like a rotary lever on the biasing element such that the biasing element is movable by the active part together with the gripping surface on the belt when the active element itself is engaged with the belt.

The sensor may be a ball that is movably mounted.

Embodiments of the present invention have been described in the accompanying drawings. FIG. 1A shows a deflection device 1 for gripping a variable belt at rest. In FIG. 1B, the end positions of the high loads in the accident are indicated by dotted lines. Similarly the relationship between force and lever is shown. The variable belt grip is shown in FIG. 2 as a first catch action, and FIG. 3 shows a second catch action in the event of an accident.

The base plate 3 is connected to the chassis 30 via the mounting hole 34 in a conventional manner by screws. The pivot arm 7 is firmly connected to the base plate 3 via a pin 10 which can be broken. In the mounting hole 24 of the pivot arm 7 the deflection device 2 is rotatably mounted and the tension spring 35 holds the deflector 2 stationarily in the rest position shown. If the occupant moves forward, the belt 22 is pulled against the force F _G of the drive spring of the winder by force F _A. If the occupant moves backward, the winder winds the belt with a force F _G. All shapes of the parts described work like conventional deflectors.

All shapes of the parts described work like conventional deflectors that guide the belt pull force F _A to the shoulder, depending on the size and seating position of the occupant. The strength of the tension spring 35 is selected such that the rest position according to FIG. 1a is maintained up to about 30 N (F _AO to 30 N). When there is a deceleration acting on the body, i.e. when braking or when turning around the corner, there is a deceleration greater than 0.4g, and when the occupant moves and pulls the belt, belt grip occurs according to the second degree (first catching form). The sensing unit in the winder catches the winder shaft and prevents belt pull. As a result of the forward movement of the occupant, when the belt pulling force F _A1 rises to 30 N or more, the deflector 2 is inclined with the mounting pin 8 in the mounting hole 24 to rotate to the right, and the two gripping surfaces 4 and ( 5) The belt F is gripped in between.

Before gripping occurs, the composite force F _R has the effect of moving the inclined movement to the inclination angle α. After gripping, there is a force ratio of F _A1 xr ₁ : KL ₁ xa ₁ , which is about 2.5 in the figure. As a result of this relationship, the friction coefficient μ, which is required 0.4, appears at the holding position 4/5. At that time, the belt is gripped with a load of about 40N. At this time, the holding force KL ₁ reaches 40 × 2.5 = 100N. 40N can be braked with a value of 0.4. In any case, only about 35 N is exerted in the gripping position as a result of the frictional effect between the belt 22 and the deflector surface 18, which can be regarded as a safety factor.

Stable gripping of sensitive fabric belts with a friction coefficient of μ = 0.4 is possible without damaging the belt. The coefficient of friction between the belt material (polyester / polyamide) and rubber is about 0.7. Thus, even if a flat gripping surface 4/5 is used, no damage or deformation of the belt 22 can occur. Since the friction coefficient of the composite material is between 0.35 and 0.4, the composite material shapes 36 and 37 of the base plate 3 and the deflector 2 are also very suitable on the gripping surfaces 4 and 5 during the first capture mode. Can be softened. However, for safety reasons, the recesses and protrusions are provided on the at least one gripping surface as shown by the symbol 4 but not so weakly. In the deflector, no load greater than 40 N on the winder occurs in the form of a belt lock. It has now been shown that it can be made lighter, cheaper and smaller. The deflection gripping device 1 also receives substantially less load because the force F _A2 is transmitted in case of an accident.

In a conventional deflector, this force is transferred to the winder as F _G so that the combined force F _R is about 50% greater than F _A. FIG. 2 shows that only a small tilt angle is needed to have the first catch action. This means that the belt is locked immediately without pulling the belt. Up to 40 N, no measurable film spool effect or measurable belt extension was observed between the winder and the deflector.

Apart from the use of tension belts, according to normal knowledge, this shape of the belt is most effective. If the deceleration of the vehicle is extremely high, i.e. if an accident has occurred, the load F _A rises. If this exceeds the predetermined value, the pin 10 is broken at the intended vulnerability, and the deflector 2 guided by the pivot arm 7 changes its position as shown in FIG.

After rotating at an angle β, the following force conditions appear.

F _A2 × r ₂ = KL ₂ × a _{2 In the} figure, this relationship is always 1.5 so that the friction coefficient below 1 is sufficient for stable gripping. However, uneven gripping means (μ greater than 1) can be used because an absolutely stable and non-slip locking occurs when an accident (following belt change) occurs. This is shown in the figure as a sharp grip on the gripping surfaces 32 and 33. For additional safety, the belt is compressed between the surfaces 21 and 21 '.

In order to compress the belt 22 in a press-in manner to the gripped gripping surface 4, the shear gripping surface 5 'composed of a hard rubber composition is compressed and greatly extended by the rotation process. The final load-absorbing lock is formed from the combination of the grip of the belt (F _A2 × a ₂ ) and the clamping of the down load element KP of the accident load in a similar manner to the belt adjustment for the fixed belt. The force KP is supported by the flange 23 of the base plate 3.

The structure of the deflection device according to the invention can be seen in FIGS. 4 and 5. The load absorbing body 14 is configured in a semicircle having a high moment resistance. The composite molded article 36 gives the deflector 2 a legitimate functional shape. The mounting arm 15 is formed of a journal bearing 8. The belt slot 17 extends with the belt outlet 20 between the restricting protrusions 16. The upper part 19 serves to fix the belt in place.

This embodiment is advantageously designed to work correctly, to be economical and to be easily configured.

6 is a simplified embodiment of the idea according to the invention to absorb the highest load F _A2 in an accident state and the first mode of holding the conventional locking with a small force F _A1 without damaging the belt to generation. It is supposed to have a second rough noise to catch for. A simpler structure can also be obtained by removing additional locking between the gripping surfaces 21 and 21 ^G.

Similarly to the first embodiment, a first catch action occurs between the drug gripping surfaces 4b and 5b, where (5b) is a soft reinforcing rubber insert for convenience, which is indented into a weakly grooving surface. The belt 22 is compressed. In the case of an accident, when the load F _A increases, there is no sudden transition (vulnerability) to the second capture position, but a gradual transition occurs. The sharp teeth 12, 13 and base plate 3 'formed directly on the body 14' by the plastic / elastic deformation of the gripping surfaces 4b and 5b until the propagation surface area is effective. More and more combined.

In accordance with claim 13 there are shown claws 40, shown in dashed lines, for strongly connecting the base plate 3 ′ to the chassis 30, which engages in the corresponding insertion holes and delivers the load directly. And interlock without any additional fastening elements.

FIG. 7 shows a gradual grip of a simplified embodiment similar to that shown in FIG. 1 and shows having an additional flange 23 'on the base plate 3'. The first catching action is caused by the slightly rounded gripping surface 4b contacting the reinforcing rubber plate 5. As the load increases, the deflector 2 'rotates so that the belt runs between the gripping surfaces 21 and 21'. If the load is further increased, the mounting box 38 'deforms, resulting in a similar gripping force KP as in FIG. 3 and acting stably and without slippage. Furthermore, in FIG. 7 the solenoid 41 is shown instead of the tension spring 35. Pull back the deflector 2 'from the rest position. When electrically activated by the vehicle sensing unit and / or brake light circuit, the solenoid pushes the deflector 2 'to the gripping position to initiate the first catch action.

FIG. 8 shows a deflection device 2 "having a low friction belt guided by a roller 42 mounted to the limiting surface 16 'of the body 14". The composite molding of the body 14 "is only partially shown as the upper part 19. A rotation pushed by the spring 35 (or by the solenoid 41) occurs around the pivot axis 15 '. .

The pivot shaft is rigidly connected to the body 14 ". The belt is gripped in the opening 48 and then deforms with the body 14". Under load the deflector roller 42 can be bent into a concavely curved support surface 47. Two support ribs 45 were provided to move the load to the second catch position with a small twist. When the deflector 1 is arranged on the protrusion of column B in accordance with DE-PS 31 04 598, which is arranged on the occupant's shoulder, a rotation centering on the vertical axis as proposed in DE-PS 24 20 848 is omitted.

In all embodiments, if the engagement jaw 40 is formed on the base plate 3 to engage the corresponding opening of the chassis metal (or vice versa, the engagement jaw of the chassis engages the corresponding opening of the base plate), it is lighter and cheaper.

In the deflecting device according to FIG. 8 a first catch action of the belt 22 occurs on the composite plate 5 between the slightly rounded metal gripping surfaces 12 'and the second catch action is shown in FIG. As shown. 9 shows the body 14 "of the deflector 2" as a finally curved and compressed element. It is clear that the structure works.

An example of the selection of the structure according to FIGS. 8 and 9 is represented by the deflection gripping device according to FIGS. 10 and 11. The construction of the parts was chosen differently and the belt grips were generated relative to the movable gripping flange 53 and the movable gripping flanges were rotatably mounted to the base plate 3 "against the action of the compression spring 50. Very sturdy A spring 50 can be used to act in the gripping zone 1 (up to 500 N) like a rigid flange.

The gripping flange 53 is moved only in the gripping area 2 (from 500N), and therefore, the rounded teeth 12a and 13a of the gripping surface are effective above all. Further, as a result of the continuous movement of the gripping flange 53, the activation of the sharp teeth 12b and 13b occurs only in the gripping area 3 (from 2KN), so that the lower gripping surface 21 in the final state as shown in FIG. Continue until) 21 'effect the gripping. As a result, downward movement of the bearing 38 "occurs and in addition to the gripping element KL ₂ , an element KP is generated and the belt is prevented from slipping. The deflection roller 42" is downwardly moved under load, and the support shaft 50 Stick to.

The belt 22 passes through the two deflection rollers 49 and is guided around the flat roller 42 "and cannot be peeled off. These deflection rollers perform the same function as the upper part of the above-mentioned figure.

Flexible clamping pads 4 "and 5" were provided for the first gripping area. The relationship is that the gripping pad 4 " is attached to the flexible gripping surface insert 21 and is positioned on the pivot carrier 51, and the pivot carrier 51 is the deflection roller 42 " and the belt deflection roller 49. And a support shaft 50 'and attached to the flexible mounting box 38 "on the rotation shaft 15".

By this method, the effective lever length a exists between the holding pad 4 "and the rotating shaft 15", and thus the effective lever arm between this rotating shaft 15 ", the deflection roller 42", and the shaft 53 ". Its distance should be greater than 2xa. The axis of rotation 15 "is mounted on the substantial upper side of the two support plates 11" mounted on the base plate 3 ".

12 and 13 illustrate embodiments of the progressive belt gripping portion. Here, several gripping surfaces are constructed integrally. For this purpose the bodies 3, 3 'and 14 are provided with uneven portions 12' "and 13 '".

The protrusions of the concave and convex portions have a sharp end in some cases (FIG. 12), and in some cases a round end (FIG. 13). This uneven portion is covered with a flexible adhesive layer 4 '"(5'") and reinforced with a rubber component. In the gripping area 1 the belt 22 is only held by the adhesive layers 4 '"and 5'". As the load increases, movement to another gripping area occurs continuously until shape-locking tooth bites with the belt occur in gripping area 3.

14 shows a deflection gripping apparatus having a structure for mounting to the B column 30. As shown in FIG. Belt gripping occurs between two gripping jaws 57 and 58 similarly to the method of FIG. They operate flexibly and are applied. The two carriers 59 are arranged adjacent to limbs 11 in the housing 3. The return spring should be in reality but not shown in this figure.

The gripping jaw is a rounded concave-convex portion with a reinforced coated gripping surface (4) (5), and the housing (3) is a knit (54) and a plate (55) on the base plate (56) of the B column (30). ) Is mounted.

FIG. 15 shows an embodiment similar to that of FIG. 8 except that the deflection guide 63 is provided, and the roller 60 is mounted on the housing of the deflection gripping device and is supported on the winder shaft 61. The reel's winder shaft may be coupled to a belt tensioner (not shown). Between the deflector 2, 2 ″ and the reel 60, a deflection element 63 is located.

Although FIG. 16 is a device similar to that of FIG. 1a, the rigid gripping surface is provided in the tooth region 13 of the base plate 3 'and the preliminary gripping surface 5b is arranged on the base plate above the tooth region. different. However, another important point from FIG. 1 is that the structure is integral with the vehicle body detecting portion 105 in the shape of a ball 102 which is arranged and movable in the cylinder 104.

This ball is in contact with the activating member composed of the rotating lever 100, and the rotating lever rotates about the shaft 101. As shown in FIG. On the end of this pivoting lever, which faces the belt 22, the toothed surface 103 is located.

A belt-sensitive locking action can be achieved by the spring 35. This spring acts not only as a return spring but also as a so-called G-value spring (= sensing spring). If the belt pull is strongly accelerated by a force of force F _A (for example 1 g or more), the inertia force in the belt reservoir (winder without locking function) arranged in the deflector increases. As a result, the drag force _{F G (counter-force F G} ) is generated in the belt. As a result of the force balance, the deflection device 2 pushes the spring 35, tilts clockwise and starts the locking action with the sensor. First of all, the preliminary locking occurs as (5b) and then moves to the gripping lock state between (12) and (13) as the load increases. Initiation of the body-sensing locking action occurs when the deceleration of the bodywork exceeds 0.40 g. This relationship is rotated such that the detection ball 102 is deflected and the pivoting lever 100 acting as a locking lever is toothed on the beltron surface 103. The resulting bite angle results in a slight gripping action against the belt pull. If the belt pull F _A occurs after the deflection of the pivoting lever 100, the deflector 2 immediately pushes the spring 35 to rotate to generate a preliminary lock with 5b. Instead of the toothed bite surface 103, a bite surface with a high friction layer may be used. Devices based on a pure mechanical structure without incidental energy (for example, electrics such as solenoids according to FIG. 7) indicate that they are suitable for the protective effect in seat belts. It has an absolutely short belt pull without the film spool effect. In the case of an accident, the smallest initial movement occurs.

In the embodiment according to FIGS. 17, 18 and 19, the base plate 83 of the U-shaped structure has two ribs 84.

The pivot bolt 85 is clamped between the ribs 84. A pivot housing 86 is mounted on this pivot belt, and a deflection roller 87 is rotatably mounted on this housing. The belt guide 88 is located opposite the deflection roller on which the belt 22 is placed.

The pivot housing 86 has a movable gripping jaw 89 in the lower region on the base plate 83. This gripping jaw lies on the base plate 83 at the initial position shown in FIG. 17 and extends partially into the opening 90 located in the base plate 83. The movable gripping jaw 89 has a tooth holding surface 91.

This tooth gripping surface 91 is applied by an elastic and / or plastically deformable friction layer 92. The movable gripping jaw 89 or the floating gripping jaw 93 is positioned. It is similarly mounted on pivot bolt 85 and held on the opposing layer axis by holding rod 94. The force generated in the floating gripping jaw 93 is supported by the gripping rod 94 and the pivot bolt 85. At the lower end of the floating gripping jaw 93, a guide part for the belt is mounted by the fixing pin 95. Despite the presence of the gripping rod 94, a rectangular opening 97 is provided to ensure the movement of the pivot housing 86 in both pivot housings.

The friction pad 98 is located on the opposite side of the grip jaw 89. It is located in the opening 99 of the fixed gripping jaw 93.

In Fig. 17 a typical movable position without grips is shown. The guide parts 88 and 96 ensure that the belt can pass freely between the gripping surfaces of the gripping jaws 89 and 93 when the belt is pulled through the deflection roller 37 under the same conditions.

In Figure 18 a gripping condition is shown. The gripping housing 86 is rotated to the right extreme position here, the friction layer 92 is suppressed, and the bite tooth 91 bites the belt 22. In this state, the friction pad 98 is deformed until the movable gripping jaw 89 is slightly pressed into the opening 99 of the movable gripping jaw 93 at the upper end. Here the belt slightly enters the sharp deflector. This helps to increase the holding power.

This embodiment shows a structure of a generally described deflection gripping apparatus which is particularly simple and convenient. The friction layer 92 may be applied to the entire surface of the movable gripping jaw, and the possibility of having a narrow strip over the entire gripping surface height is also conceivable.

Claims (10)

A deflection device for a seat belt, which is mounted on the B and C columns of a vehicle and has a device for locking the belt directly by gripping and receiving a load in the event of an accident, comprising a two-stage gripping device (1) equipped with a predetermined deceleration The first gripping action, which is carried out in a slightly gripping shape, does not damage the belt when the normal locking of the belt which does not cause an accident after exceeding the teeth occurs due to the operation of the elastically deflecting biasing element 2. And, in case of an accident caused by the high deceleration of the deflection element, the second belt acts as a second gripping action, so that the safety belt is effectively and securely gripped so that no slip is obtained. Device. 2. The preliminary gripping surfaces (4, 5) according to claim 1, wherein the biasing element (2) is inclined by the lever in a proportion greater than 2 for the first gripping action so that the two elastically / plastically deformable preliminary gripping surfaces (4,5) are joined together. Deflection device for seat belts characterized in that. 2. The fastening surface according to claim 1, wherein at least one of the fastening surfaces deformable in accordance with the next (continued) change of the corresponding position of the pivot element 2 for a second gripping action to more effectively grip the belt in the event of a large deceleration due to an accident. Gripping surface (21,21 '; 32,33) having two unevenness after plastic deformation of the seat belt, characterized in that the mutual coupling state. 2. The deflection element (2) mounted on the two journals according to claim 1, characterized in that the deflection element (2) mounted on the two journals can be rotated on two pivot arms (7) connected to the base plate (3) via spring deflection and intentional weaknesses (6). Deflection device for seat belts. 4. A biasing device according to claim 3, characterized in that the gripping surface with irregularities is formed of one flange (23) and a clamping part (21) adapted to form-locking therewith. In any one of the preceding claims, the pivot arm 7 has a circular hole 24 for receiving the installation journal on the one hand and a hole 25 with a pivot boss on the other hand. The pivot boss (26) is a deflection device for a seat belt, characterized in that the engagement in the compressed roller of the base plate (3). 2. The body (14) according to claim 1, wherein the body (14 ") has a low friction to rotate the deflection roller (42), so that in the first gripping step the gripping rubber pin (5) with the round metal gripping surface (12 ') is held. And in the second gripping step, the bottom gripping surface (21) is gripped on the gripping surface (21 ') of the flange (23') of the base plate (3 '). 2. Deflection device according to claim 1, characterized in that the deflection element is mounted in the resilient bearing (38 ") with the rotation axis (15") of the deflection element. 2. The gripping surface according to claim 1, wherein the gripping surface is configured to be joined to a gradual gripping surface with a flexible adhesive layer (4 '", 5'") provided on a heavily concave gripping surface (12 '", 12'"). Deflection device for seat belts characterized in that. 2. The unevenness according to claim 1, wherein a movable grip jaw (89) having a deflection roller (87) is mounted on a pivot pin (85) secured to a vehicle, and the grip jaw (89) is pivoted with a deformable material (92). And a gripping surface (91), wherein the other gripping jaw (93) has a deformable clamping pad (98) positioned in one opening and forming a gripping surface.

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