CN209258067U - Seat belt retractor and safety belt assembly - Google Patents

Abstract

The utility model relates to a kind of seat belt retractors, it includes that bracket, belt reel (1), locking system (10), vehicle induction device (20) and vehicle sense inhibit device (30), and it includes driving component (8) and suppression component (7) that vehicle sense, which inhibits device,.Drive component that can be driven by belt reel.Suppression component can be maintained at by adhesive force to be driven on component, wherein drives component to have sliding rail, and suppression component has the sliding part that can be slided on sliding rail in the case where overcoming adhesive force.Suppression component can be limited in the first end position, can inhibit the vehicle sense function of vehicle induction device when in the first end position, and the vehicle sense function of vehicle induction device can be discharged when leaving from the first end position.Here, the mechanism structure for realizing vehicle sense noise suppressing function is simple, low in cost, and vehicle sense noise can be effectively reduced.The utility model further relate to include such seat belt retractor safety belt assembly.

Description

Seat belt retractor and safety belt assembly

Technical field

The utility model relates to a kind of seat belt retractor and a kind of safety belts including such seat belt retractor Component.

Background technique

The safety belt assembly of vehicle is as a kind of effective firm passive safety feature, it has also become strong in vehicle safety Property configuration processed.With the demand of the continuous improvement of vehicle population, experience by bus constantly promoted, occupant has NVH more next Higher requirement.When driving, due to the vibration of road bump and itself vehicle body, often make seat belt retractor Interfering noise is issued, this influences occupant's car experience.

Known some seat belt retractors in practice, equipped with locking system, in the emergency of vehicle, Such as when traffic accident occurs by the belt reel locking of seat belt retractor, enable occupant preferably constrained and to Preferably protected.

In addition, being used in the emergency of vehicle trigger equipped with vehicle induction device in some seat belt retractors The latch functions of locking system.The vehicle induction device of known diversified forms in practice, they especially are used to incude adding for vehicle The vibration of the tilt angle and/or vehicle of speed/deceleration and/or vehicle and/or its that can reflect vehicle emergency condition Its parameter.Such as when the acceleration of vehicle or deceleration meet or exceed scheduled threshold value, vehicle induction device can trigger locking The latch functions of device, and to locking belt reel.

During vehicle normal driving, the movable part of vehicle induction device is possible to continually occur relative to other components Collision, this is often to the undesirable noise of the causing interference with property of occupant of vehicle.Currently, on the market, for acceleration/deceleration Degree induction, generallys use such a vehicle induction device, wherein by vehicle sense steel ball by vehicle acceleration/deceleration in steel ball seat Triggering of the vehicle induction device to the latch functions of locking system is realized in movement caused by degree and vehicle angles.In this vehicle induction device In, the normally travel of vehicle may cause steel ball seat and frequently collide with vehicle sense steel ball, and therefore generate the noise bothered.

In order to reduce, even be eliminated the vehicle sense noise of the vehicle induction device in normal driving, it is known that vehicle sense noise suppressing function, It can improve interior level of NVH under the premise of not influencing coiler security performance, therefore improve occupant's driving experience.

A kind of seat belt retractor with vehicle sense noise suppressing function is disclosed in patent document US5507449A, In, equipped with clutch and the spring for pre-tightening clutch relative to shaft, the spring has swingable spring swing arm, works as bullet When spring swing arm swings to operating position, the vehicle sense function of vehicle induction device can be limited, and to reach the function for inhibiting vehicle sense noise Energy.When seat belt retractor will be by lock in emergency, the extraction of ribbon drives the belt reel rotation of seat belt retractor, to make It obtains the Spring Pendulum arm swing and is detached from the position for inhibiting vehicle induction device, so that vehicle sense functional rehabilitation, to realize lock in emergency belt reel Function.In the prior art, vehicle sense inhibits device to have all multi-parts, insufficient in terms of reliability and fatigue durability, portion The manufacturing process of part is complicated, and assembly is not easy, and manufacturing cost and installation cost are all higher.

The relevant prior art for example reference may also be made to patent document CN207523649U, US9884607B2 and CN207466601U。

Utility model content

Therefore, the purpose of this utility model is that, a kind of seat belt retractor with vehicle sense noise suppressing function is realized And a kind of safety belt assembly including such seat belt retractor, wherein for realizing the machine of vehicle sense noise suppressing function Structure is of simple structure and low cost, and can be effectively reduced vehicle sense noise.

For this purpose, the utility model provides a kind of seat belt retractor, the seat belt retractor includes belt reel, for locking The only locking system of belt reel and the vehicle induction device of the latch functions for triggering locking system；The seat belt retractor is also Inhibit device including the vehicle sense for inhibiting the vehicle sense function of vehicle induction device, it includes driving component and suppression that the vehicle sense, which inhibits device, Component processed；Drive component that can be driven by belt reel；Suppression component can be maintained at by adhesive force to be driven on component, wherein is driven Component has sliding rail, and suppression component has the sliding that can be slided on sliding rail in the case where overcoming adhesive force Portion；Suppression component has a stopper section, the stopper section can static stopper section collective effect with matching, enable suppression component It is limited in the first end position；And suppression component can inhibit the vehicle sense function of vehicle induction device when in the first end position Can, and the vehicle sense function of vehicle induction device can be discharged when leaving from the first end position.

By the seat belt retractor of the utility model, in normal vehicle operation, the vehicle sense function of vehicle induction device is pressed down System, therefore can reduce, even be eliminated vehicle sense noise；And in emergency, the vehicle sense function of vehicle induction device is released, therefore Vehicle induction device can trigger the latch functions of locking system, and occupant is enabled to be equipped with such safety belt retracting in emergency The safety belt assembly of device constrains well.

By a kind of advantageous embodiment of the utility model, component is driven to couple with belt reel movement, so that in winding Cylinder retracting direction rotation when drive component move in a first direction and in belt reel when uncoiling direction rotates drive portion Part moves in a second direction that is opposite the first direction.

By a kind of advantageous embodiment of the utility model, the stopper section can static stopper section with matching it is common Effect, enables suppression component to be limited in the first end position in a first direction and can be limited in a second direction On the second end position.

By a kind of advantageous embodiment of the utility model, component is driven to couple so realization: band with belt reel movement Dynamic component is coaxially connect without relative rotation with belt reel, such as drives component that can be sleeved on the spindle nose of belt reel.By This realizes particularly compact structure.Here, the connection without relative rotation is either removable or non-disconnectable company existing always It connects, is also possible to the connection with clutch, and thus under predetermined circumstances can be loose for example under vehicle emergency It opens.

It is also possible that component is driven to connect with belt reel by transmission mechanism.Drive component both can be same with belt reel Arrange to axis, arrange with can also be different axis, for example, by means of bevel gear transmission mechanism may be implemented rotation axis each other in The arrangement of angle.The rotary motion of belt reel is converted into except the rotary motion for driving component except through transmission mechanism, It is possible that the rotary motion of belt reel is converted by transmission mechanism to drive the linear motion of component, therefore, belt reel Retracting can cause that component is driven to move along a straight line in a first direction, and the uncoiling of belt reel can cause to drive component opposite It moves along a straight line in second direction.

By the utility model, suppression component can be maintained at by adhesive force to be driven on component.Particularly advantageously, adhesive force By suppression component and the stiction between component can be driven to realize.As an alternative or supplement, adhesive force can also pass through Magnetic force between suppression component and drive component realizes that such as suppression component and drive component can be made of permanent-magnet material thus Or include the component part made of permanent-magnet material.As an alternative or supplement, adhesive force can also be by normal in field of textiles The pulling connection structure seen is realized.

It is driven on component since suppression component can be maintained at by adhesive force, drives component that can carry suppression component one and start shipment It is dynamic, if suppression component not yet reaches by the stopper section that is fitted to each other mutually keep off by and the end position that limits if.When When suppression component reaches the first end position in a first direction, component is driven to can continue to move in a first direction, and pressed down Component processed is maintained in the first end position.When suppression component reaches the second end position in a second direction, component is driven It can continue to move in a second direction, and suppression component is maintained on the second end position.

By a kind of advantageous embodiment, suppression component tool there are two stopper section, the two stopper sections can respectively with one The static stopper section collective effect to match.As an alternative, it is also possible that suppression component have only one stopper section, with The static stopper section collective effect of two matchings.

By a kind of advantageous embodiment, the drive component is the component of locking system, the e.g. lock of locking system Only triggering ratchet disk.It is possible thereby to which saving one individually drives component.By a kind of advantageous further scheme, the locking dress Set including be sleeved on belt reel spindle nose on locking triggering ratchet disk, and the drive component is the locking triggering ratchet Disk.

By a kind of advantageous embodiment, the locking system includes the locking triggering spine being sleeved on the spindle nose of belt reel Wheel disc, and further include locking pawl and spring element；The locking pawl is contained in the vacancy portion of an end regions of belt reel In, the locking pawl has pin shaft, and the pin shaft is contained in the kidney slot of locking triggering ratchet disk, and the locking pawl has tooth Portion, the teeth portion are used for teeth portion collective effect corresponding with bracket, and belt reel is pivotally supported in the bracket；The bullet Spring element towards the radially inner side end of the kidney slot direction bias locking pawl so that the teeth portion of locking pawl is corresponding with bracket Teeth portion is disengaged from；And when locking triggering ratchet disk is locked up and belt reel rotates in uncoiling direction, the locking pawl It is forced to guide, so that the teeth portion of locking pawl is engaged with the corresponding teeth portion of bracket, and to which belt reel is locked up.Locking is filled For setting, have various locking systems in the prior art.These locking systems may be equally applicable for practical by this In novel seat belt retractor.

By a kind of advantageous embodiment, the drive component has circumferential part, and the circumferential part has inner peripheral surface, axis To end face and outer circumference surface, the inner peripheral surface constitutes the sliding rail.As an alternative or supplement, it is also possible to, circumference The outer circumference surface or axial end face in portion constitute sliding rail.Such as according to a kind of further scheme, the inner peripheral surface of circumferential part, Axial end face and outer circumference surface collectively form sliding rail, and sliding part is configured to U-shaped, and sandwiches sliding rail, here, U Two sides and a bottom edge of shape sliding part correspondingly stick on the inner peripheral surface, axial end face and outer circumference surface of circumferential part On.

By a kind of advantageous embodiment, the circumferential part has annular groove, and the suppression component, which has, to be joined in annular groove Grab.According to a kind of further scheme, the annular groove in axial direction makes in the circumferential part or the annular groove edge Radial direction system enters into the circumferential part.By the engagement of grab and annular groove, it can particularly simply realize that suppression component exists It drives fixed and positioned on component.

By a kind of advantageous embodiment, the sliding part formation of the suppression component extends elongated along sliding rail Spring leaf, the composition that the sliding part is used to stick on circumferential part is the inner peripheral surface of sliding rail；And the suppressing portion Part has support portion, and the support portion is used to support on the outer circumference surface of circumferential part, so that the sliding part tightly reclines in advance On sliding rail.

As an alternative, it is also possible that the suppression component sliding part formation extend along sliding rail it is elongated Spring leaf, the composition that the sliding part is used to stick on circumferential part is the outer circumference surface of sliding rail；And the suppressing portion Part has support portion, and the support portion is used to support on the inner peripheral surface of circumferential part, so that the sliding part tightly reclines in advance On sliding rail.

As an alternative or supplement, it is also possible to, elastic sliding part is pressed on sliding rail by individual compacting part On road.

By a kind of advantageous embodiment, the sliding part of the suppression component is continuous element or including multiple Separated element.

By a kind of advantageous embodiment, the stopper section forms spring.Therefore, in the stopper section of suppression component and matching Static stopper section when colliding, noise caused by reducing or even avoiding thus.As an alternative or supplement, static stopper section Spring can also be formed, perhaps equipped with spring or equipped with other impact mitigation measures, such as can be fixed on static stopper section Ground is equipped with elastomer element.

By a kind of advantageous embodiment, the suppression component has the elasticity for inhibiting the vehicle sense function of vehicle induction device Position.Vehicle induction device includes movable part.In principle, suppression component can reduce the movable part of vehicle induction device on active position Mobility, just have been able to accordingly decrease vehicle sense noise.But particularly advantageously, suppression component is on active position The mobility of movable part can substantially completely be inhibited, such as vehicle induction device is either directly or indirectly compressed by elastic position Movable part.

By a kind of advantageous embodiment, the suppression component is integrally formed by steel disc；And/or the drive component by Plastics are integrally formed.It is also possible that suppression component and/or drive component are made of other suitable materials respectively, such as The two can be made of steel, or be formed by plastic injection.

By a kind of advantageous embodiment, the vehicle induction device includes that sensitive pawl, sensitive ball and sensitive seat, sensitive pawl pass through Pin shaft is supported on deflectablely on sensitive seat, and sensitive ball is movably mounted between sensitive pawl and sensitive seat, and sensitive ball is moving Sensitive pawl can be lifted when leaving its resting position, and sensitive pawl can trigger locking dress when being raised to predetermined extent by sensitive ball The latch functions set.Itself with regard to vehicle induction device, diversified forms well known in the art, they are readily applicable to by this In the seat belt retractor of utility model.

By a kind of advantageous embodiment, the locking system includes locking triggering ratchet disk, and sensitive pawl is quick Sense ball is raised to the engagement of predetermined extent Shi Nengyu locking triggering ratchet disk, and therefore triggers the latch functions of locking system.

By a kind of advantageous embodiment, the suppression component has the elasticity for inhibiting the vehicle sense function of vehicle induction device Position；At suppression component when in the first end position, the elasticity position is pressed on sensitive pawl, and in suppression component When leaving from the first end position, the elasticity position discharges sensitive pawl.

By a kind of advantageous embodiment, the suppression component is integrally formed by steel disc；The sliding of the suppression component Portion forms the elongated spring leaf extended along sliding rail, and the sliding part is used to stick on the composition of circumferential part as sliding rail On the inner peripheral surface in road；The suppression component includes the arm for bending out from sliding part along a long side of sliding part；It is described At least one of two ends that arm orients on the length direction of sliding part on the first section adjacent with sliding part There is the stopper section that elasticity is formed by bending on end；The arm, which has, cuts from the arm and bends the card come out Hook, the grab are used to be joined in the annular groove of the circumferential part for driving component in axial direction made；The arm has from institute It states and is cut in arm and bend the support portion come out, the support portion is used to support on the outer circumference surface of circumferential part；And it is described Arm has vehicle sense function formed by bending, for inhibiting vehicle induction device on the second section deviated from sliding part Elastic position；Wherein, by the engagement of grab and annular groove, so that sliding part axially position on circumferential part, and at least through Support of the support portion on the outer circumference surface of circumferential part for driving component, so that sliding part tightly sticks on sliding rail in advance.

Here, suppression component is the component of an integral type for being integrated with multiple functions, this makes by the utility model The number of parts of seat belt retractor minimizes, and the suppression component of integral type can be simple and honest and clean by sheet metal punching press Valence it is made.

By a kind of advantageous embodiment, the locking system, vehicle induction device and vehicle sense inhibit device to be arranged in belt reel An axial end region on, and by a mechanical side cover covering, the mechanical side lid is fastened on bracket, and belt reel can It is rotationally supported in the bracket；The locking system is positioned along axial direction by mechanical side cover, and the vehicle induction device is mounted on machine On tool side cover；And the static stopper section is arranged in mechanical side and covers or be arranged on the stationary parts of vehicle induction device.

By a kind of advantageous embodiment, a wind spring side cover is equipped in another axial end region of belt reel, Reset spring for resetting belt reel towards retracting direction is mounted on wind spring side cover.

The utility model also provides a kind of safety belt assembly comprising ribbon and the safety belt retracting by the utility model Device, the ribbon can be furled on the belt reel of the seat belt retractor.

At this it is noted that the technical characteristic recorded in application documents can be with any combination, as long as this combination exists Be technically feasible be not in other words it is conflicting, it is all these combination be all the application record technology contents.

Detailed description of the invention

The utility model is described in more detail with reference to below by way of embodiment, the embodiment and attached drawing are for more The utility model is understood well, without being construed as limiting to the utility model.Schematical attached drawing is as follows:

Fig. 1 shows a kind of exploded view of the seat belt retractor of embodiment by the utility model；

Fig. 2 shows the schematic diagrames of the locking triggering ratchet disk of the seat belt retractor by Fig. 1；

Fig. 3 shows the perspective view of the suppression component of the seat belt retractor by Fig. 1；

Fig. 4 shows the partial, longitudinal cross-sectional of the drive component of the suppression component with installation；

Fig. 5 shows side view of seat belt retractor in the state that vehicle sense function is released；And

Fig. 6 shows side view of seat belt retractor in the state that vehicle sense function is suppressed.

Specific embodiment

Fig. 1 shows a kind of exploded view of the seat belt retractor of embodiment by the utility model.Safety belt retracting Device include unshowned bracket, the belt reel being pivotally supported in bracket 1, for locking belt reel locking system 10, Vehicle sense suppression for triggering the vehicle induction device 20 of the latch functions of locking system and for inhibiting the vehicle sense function of vehicle induction device Device 30 processed.

The part of belt reel 1 is only shown herein, i.e. its section that left side is in Fig. 1.In the unshowned of belt reel 1 The axial end region on right side is equipped with a same unshowned wind spring side cover being fixed on bracket, for making belt reel 1 The same unshowned wind spring resetted towards retracting direction is mounted on wind spring side cover.Unshowned ribbon can be in a roll-up direction It is furled on belt reel 1, and can be on the uncoiling direction opposite with coiling direction from uncoiling on belt reel 1.

A mechanical side cover 6 is equipped in the axial end region in Fig. 1 in left side of belt reel 1, it is same solid It is scheduled on bracket, such as is fastened on bracket by screw.Locking system 10, vehicle induction device 20 and vehicle sense inhibit device 30 to be arranged It is covered in the axial end region in the left side of belt reel 1, and by mechanical side cover 6.Locking system 10 is along axial direction by mechanical side Lid 6 positions, and vehicle induction device 20 is mounted on mechanical side cover 6.

Locking system 10 may include locking pawl, spring element and locking triggering ratchet disk 4.Locking triggering ratchet disk 4 is logical Central shaft 4.1 is crossed to be sleeved on the spindle nose 1.1 of belt reel 1.On the end regions in the left side of belt reel 1, on belt reel 1 Vacancy portion 1.2 is produced, locking pawl is contained in vacancy portion 1.2.Locking pawl has teeth portion, which can be with the corresponding teeth on bracket Portion's collective effect.Locking pawl has pin shaft, and the pin shaft is contained in the kidney slot 4.2 of locking triggering ratchet disk 4.Spring element Towards the direction bias locking pawl of the radially inner side end of kidney slot 4.2, so that the corresponding teeth portion of the teeth portion of locking pawl and bracket It is disengaged from.Such as spring element can be supported on locking triggering ratchet disk 4 with one end, and is supported on pin shaft with the other end On.

In the case where locking triggering ratchet disk 4 is not locked up, locking triggering ratchet disk 4 can be driven by belt reel 1, together Rotation.Under the emergency of vehicle, such as when traffic accident occurs, locking triggering ratchet disk 4 is locked up.At this point, winding Cylinder 1 continues to be rotated up in uncoiling side due to the continuing to extract out of ribbon, this forces locking pawl to overcome the spring force of spring element It is moved radially outwards in kidney slot 4.2, until the teeth portion of locking pawl is engaged with the corresponding teeth portion of bracket, and to roll up Band 1 locking of cylinder.Locking triggering ratchet disk 4 is equipped with ratchet 4.3 with being distributed on one circumferential part.It is adjacent to the circumferential part and sets There is another circumferential part 4.4, also will be described in detail below.

As shown in Figure 1, vehicle induction device 20 includes that sensitive pawl 5.1, sensitive ball 5.2 and sensitive seat 5.3, sensitive pawl 5.1 pass through Pin shaft is supported on deflectablely on sensitive seat 5.3, and sensitive ball 5.2 is movably mounted between sensitive pawl 5.1 and sensitive seat 5.3, Sensitive ball 5.2 can lift sensitive pawl 5.1 when moving from its resting position, and sensitive pawl 5.1 is raised to by sensitive ball When predetermined extent, sensitive pawl 5.1 is joined on the ratchet 4.3 of locking triggering ratchet disk 4, therefore locking triggering ratchet disk 4 is locked Only, and to which the latch functions of locking system 10 can be triggered like that as already mentioned above.

It includes driving component 8 and suppression component 7 that vehicle sense, which inhibits device 30,.In the embodiment shown in figure 1, component is driven 8 are realized by the component of locking system 10, more specifically, being realized by locking triggering ratchet disk 4.Therefore a list can be saved The drive component being solely arranged, and only need to utilize inherently already existing locking triggering ratchet disk 4.

Driving component 8, locking triggering ratchet disk 4 has circumferential part 4.4 in other words, and the circumferential part is with inner peripheral surface and outside Periphery, the inner peripheral surface constitute sliding rail.The circumferential part also have in axial direction make into annular groove, for receiving The grab of suppression component 7.

As shown in figure 3, suppression component 7 includes sliding part 7.1, the elastic position 7.2 for inhibiting vehicle sense function and two Stopper section 7.3 and grab.By the engagement of the annular groove of the grab and drive component 8 of suppression component 7, suppression component 7 is along axial direction It is maintained on the circumferential part for driving component 8.Suppression component 7 further includes support portion 7.4, is supported on the excircle of circumferential part 4.4 On face.At least through support of the support portion 7.4 on the outer circumference surface of the circumferential part, when necessary additionally by grab and ring The engagement of slot, so that sliding part 7.1 is tightly sticked in advance on the sliding rail for driving component 8.By this with pretightning force It reclines, there are scheduled stiction between sliding part 7.1 and sliding rail.The initial of sliding part 7.1 is shown in FIG. 3 Relaxed state.When sliding part 7.1 is fitted on cylindrical sliding rail, flexible deformation can occur for sliding part, and because This generates pretightning force.One or both of two stopper sections 7.3 can also form spring, such as pass through the curved of the corresponding region of steel disc It rolls over and forms spring.Sliding part 7.1 can be configured to a continuous element.As an alternative, it is also possible that sliding part 7.1 It may include multiple separate element.It is for instance also possible that grab cut from original continuous sliding part 7.1 and bending and At, therefore final sliding part 7.1 includes multiple segmentations, these segmentations stick on sliding rail.

In a kind of unshowned alternative, grab be configured to it is solid so that can be realized sliding part 7.1 sliding rail Radial tightening on road, then individual support portion 7.4 can also be cancelled.

According to a kind of particularly advantageous scheme, the suppression component 7 is integrally formed by steel disc.Sliding part 7.1 forms bullet Reed.An arm is come out from the bending of sliding part 7.1 along a long side of sliding part 7.1, the arm is adjacent with sliding part 7.1 Form the backstop of elasticity on two ends oriented on the length direction of sliding part 7.1 on first section by bending respectively Portion 7.3.It is cut from the arm in addition, the arm can have and bends the grab come out, the grab is joined to drive portion In the annular groove of the circumferential part of part 8 in axial direction made.By the engagement of grab and annular groove, realize suppression component 7 in circumference Axially position in portion 4.4.

In addition, for example forming one or more support portions 7.4 and cutting and bending, it is used to support in circumferential part On 4.4 outer circumference surface.At least mainly by support portion 7.4, so that sliding part 7.1 tightly sticks on the cunning for driving component 8 in advance On dynamic rail road, wherein the sliding rail is formed on the inner peripheral surface for driving the circumferential part of component 8.The arm with sliding There is elastic position 7.2 formed by bending, for inhibiting vehicle sense function on the second section that portion 7.1 deviates from.More Body, on the active position of suppression component 7, elastic position 7.2 can be pressed on the sensitive pawl 5.1 of vehicle induction device 20, because This substantially completely limits the movement of sensitive ball 5.2, therefore avoids sensitive ball 5.2 with sensitive seat 5.3 in the normal vehicle operation phase Between collide and thus caused by vehicle sense noise.

Fig. 4 shows the partial vertical sectional of the drive component 8 locking triggering ratchet disk 4 in other words of the suppression component 7 with installation View.Locking triggering ratchet disk 4 is equipped with ratchet 4.3 with being distributed on the circumferential part in the left side of Fig. 4, and on the right side of Fig. 4 Suppression component 7 is installed on circumferential part.Sliding part 7.1 can be sticked on comprehensively on the inner peripheral surface of the circumferential part on right side.But It is also possible that sliding part 7.1 can in the longitudinal direction two sides stick on right side circumferential part inner peripheral surface on, and In center, there are small spacing with the inner peripheral surface on length direction.

A kind of side view of the seat belt retractor under working condition is shown respectively in Fig. 5 and Fig. 6.In order to describe safety belt volume The internal structure for receiving device, has concealed mechanical side cover 6 respectively in fig. 5 and fig..

In occupant's wear safety belt, ribbon is first pulled out certain length, then passes through the reset function of wind spring, ribbon It is furled, until ribbon is adjacent on the body of occupant.Pass through the process of the reset function winding ribbon of wind spring in belt reel 1 In, drive component 8 to be driven by belt reel 1, suppression component 7 is driven the drive of component 8 again, and is limited and is maintained at such as Fig. 6 Shown in the first end position.The elastic position 7.2 of suppression component 7 is pressed on the sensitive pawl 5.1 of vehicle induction device 20, therefore So that the vehicle sense function of vehicle induction device 20 is suppressed.In normal vehicle operation, suppression component 7 can remain essentially in first On end position, or it can reset in the first end position in time after leaving the first end position.Therefore, in vehicle It can be reduced significantly in normal driving process, even completely eliminate vehicle sense noise.

When emergency occurs for vehicle, such as when vehicle collision occurs, ribbon is quickly pulled, and drives 8 quilt of component Belt reel 1 drives, and suppression component 7 is driven the drive of component 8 again, and suppression component 7 leaves the first end position as shown in FIG. 6, Until being limited on the second end position as shown in Figure 5.When suppression component leaves the first end position to a certain degree, suppression The elastic position 7.2 of component 7 processed no longer acts on sensitive pawl 5.1, the vehicle sense functional rehabilitation of vehicle induction device 20.Vehicle induction device 20 Sense the emergency of vehicle in time, sensitive ball 5.2 lifts sensitive pawl 5.1, sensitive pawl 5.1 by 4 locking of triggering ratchet disk, And locking pawl 2 is then forced to be engaged in the correspondence teeth portion of bracket, by 1 locking of belt reel.

The utility model is described in more details by specific embodiment above.Finally, it is noted that this reality It is used only for understanding the utility model with novel above-mentioned specific embodiment, be limited without being constituted to the protection scope of the utility model System.To those skilled in the art, modification can be made on the basis of the above embodiments, and all such modifications do not take off From the protection scope of the utility model.

Claims (20)

1. a kind of seat belt retractor, the seat belt retractor includes belt reel (1), for the locking system of locking belt reel (10) the vehicle induction device (20) of the latch functions and for triggering locking system；

It is characterized in that, the seat belt retractor further includes the vehicle sense inhibition device for inhibiting the vehicle sense function of vehicle induction device (30), it includes driving component (8) and suppression component (7) that the vehicle sense, which inhibits device,；

Drive component (8) can be driven by belt reel (1)；

Suppression component (7) can be maintained at by adhesive force to be driven on component (8), wherein and drive component (8) that there is sliding rail, And suppression component (7) has the sliding part (7.1) that can be slided on sliding rail in the case where overcoming adhesive force；

Suppression component (7) has stopper section (7.3), the stopper section (7.3) can static stopper section collective effect with matching, So that suppression component (7) can be limited in the first end position；And

Suppression component (7) can inhibit the vehicle sense function of vehicle induction device (20) when in the first end position, and from first end Portion can discharge the vehicle sense function of vehicle induction device (20) when leaving position.

2. seat belt retractor according to claim 1, which is characterized in that component (8) and belt reel (1) is driven to move coupling It closes, so that driving component (8) to move in a first direction and in belt reel in uncoiling when retracting direction rotates in belt reel Component (8) are driven to move in a second direction that is opposite the first direction when direction rotates.

3. seat belt retractor according to claim 2, which is characterized in that the stopper section (7.3) can be quiet with matching Stopper section collective effect only, so that suppression component (7) can be limited in a first direction in the first end position and energy It is limited on the second end position in a second direction.

4. seat belt retractor according to any one of claim 1 to 3, which is characterized in that the drive component (8) is The locking triggering ratchet disk (4) of locking system (10).

5. seat belt retractor according to any one of claim 1 to 3, which is characterized in that the locking system (10) Including the locking triggering ratchet disk (4) being sleeved on the spindle nose (1.1) of belt reel (1), and including locking pawl and spring element；

The locking pawl is contained in the vacancy portion (1.2) of an end regions of belt reel (1), and the locking pawl has pin Axis, the pin shaft are contained in the kidney slot (4.2) of locking triggering ratchet disk (4), and the locking pawl has teeth portion, the teeth portion For teeth portion collective effect corresponding with bracket, belt reel (1) is pivotally supported in the bracket；

The spring element towards the radially inner side end of the kidney slot (4.2) direction bias locking pawl so that locking pawl Teeth portion is disengaged from the corresponding teeth portion of bracket；And

When locking triggering ratchet disk (4) is locked up and belt reel (1) rotates in uncoiling direction, the locking pawl is forced to draw It leads, so that the teeth portion of locking pawl is engaged with the corresponding teeth portion of bracket, and to which belt reel (1) is locked up.

6. seat belt retractor according to any one of claim 1 to 3, which is characterized in that drive component (8) tool Have circumferential part (4.4), the circumferential part has inner peripheral surface, axial end face and outer circumference surface, the inner peripheral surface and/or described Axial end face and/or the outer circumference surface constitute the sliding rail.

7. seat belt retractor according to claim 6, which is characterized in that the circumferential part (4.4) has annular groove, described Suppression component (7) has the grab being joined in annular groove.

8. seat belt retractor according to claim 7, which is characterized in that the annular groove is in axial direction made into described In circumferential part (4.4) or the annular groove is radially made in the circumferential part (4.4).

9. seat belt retractor according to any one of claim 1 to 3, which is characterized in that the suppression component (7) Sliding part (7.1) forms the elongated spring leaf extended along sliding rail, and tightly sticks on the cunning for driving component (8) in advance On dynamic rail road.

10. seat belt retractor according to claim 6, which is characterized in that

The sliding part (7.1) of the suppression component (7) forms the elongated spring leaf extended along sliding rail, the sliding part Composition for sticking on the circumferential part (4.4) is the inner peripheral surface of sliding rail；And

The suppression component (7) has support portion (7.4), and the support portion is used to support the outer circle in the circumferential part (4.4) On circumferential surface, so that the sliding part (7.1) tightly sticks on sliding rail in advance.

11. seat belt retractor according to any one of claim 1 to 3, which is characterized in that the suppression component (7) Sliding part (7.1) be continuous element or including multiple separate element.

12. seat belt retractor according to any one of claim 1 to 3, which is characterized in that the stopper section (7.3) Form spring.

13. seat belt retractor according to any one of claim 1 to 3, which is characterized in that the suppression component (7) With the elastic position (7.2) for inhibiting the vehicle sense function of vehicle induction device.

14. seat belt retractor according to any one of claim 1 to 3, which is characterized in that the suppression component (7) It is integrally formed by steel disc and/or the drive component (8) is integrally formed by plastics.

15. seat belt retractor according to any one of claim 1 to 3, which is characterized in that the vehicle induction device (20) It is supported on deflectablely by pin shaft quick including sensitive pawl (5.1), sensitive ball (5.2) and sensitive seat (5.3), sensitive pawl (5.1) Feel on seat (5.3), sensitive ball (5.2) is movably mounted between sensitive pawl (5.1) and sensitive seat (5.3), and sensitive ball (5.2) exists Sensitive pawl (5.1) can be lifted when moving from its resting position, and sensitive pawl (5.1) is being raised to predetermined extent by sensitive ball When can trigger the latch functions of locking system (10).

16. seat belt retractor according to claim 15, which is characterized in that the locking system (10) includes locking touching It sends out the ratchet cover plate (4), the sensitivity pawl (5.1) can be with the lock of the locking system (10) when being raised to predetermined extent by sensitive ball Only ratchet (4.3) engagement of triggering ratchet disk (4), and therefore can trigger the latch functions of locking system (10).

17. seat belt retractor according to claim 15, which is characterized in that

The suppression component (7) has the elastic position (7.2) for inhibiting the vehicle sense function of vehicle induction device (5)；

When suppression component (7) is in the first end position, the elasticity position (7.2) is pressed on sensitive pawl (5.1)；And And

When suppression component (7) is left from the first end position, the elasticity position (7.2) discharges sensitive pawl (5.1).

18. seat belt retractor according to any one of claim 1 to 3, which is characterized in that

The suppression component (7) is integrally formed by steel disc；

The sliding part (7.1) of the suppression component (7) forms the elongated spring leaf extended along sliding rail, the sliding part Drive the composition of the circumferential part (4.4) of component (8) for the inner peripheral surface of sliding rail for sticking on；

The suppression component (7) includes the arm come out along a long side of sliding part (7.1) from sliding part (7.1) bending；

Oriented on the length direction of sliding part (7.1) on first section adjacent with sliding part (7.1) two of the arm There is the stopper section (7.3) that elasticity is formed by bending at least one end in end；

The arm, which has, cuts from the arm and bends the grab come out, and the grab, which is used to be joined to, drives component (8) In the annular groove of circumferential part (4.4) in axial direction made；

The arm, which has, cuts from the arm and bends the support portion (7.4) come out, and the support portion, which is used to support, to be driven On the outer circumference surface of the circumferential part (4.4) of component (8)；And

The arm on the second section deviated from sliding part (7.1) have by bending formed, for inhibit vehicle sense dress The elastic position (7.2) for the vehicle sense function of setting；

Wherein, by the engagement of grab and annular groove, so that sliding part (7.1) axially position on circumferential part (4.4), and at least By support of the support portion on the outer circumference surface of circumferential part (4.4) for driving component (8), so that sliding part (7.1) is pre- tightly It sticks on sliding rail.

19. seat belt retractor according to any one of claim 1 to 3, which is characterized in that

The locking system (10), vehicle induction device (20) and vehicle sense inhibit device (30) setting in an axial direction of belt reel (1) It on end regions, and is covered by a mechanical side cover (6), the mechanical side lid is fastened on bracket, and belt reel (1) is rotatable Ground is supported in the bracket；

The locking system (10) is positioned along axial direction by mechanical side cover (6), and the vehicle induction device (20) is mounted on mechanical side cover (6) On；And

The static stopper section is arranged on mechanical side cover (6) or is arranged on the stationary parts of vehicle induction device (20).

20. a kind of safety belt assembly comprising ribbon and according to claim 1 to safety belt described in any one of 19 furl Device, the ribbon can be furled on the belt reel (1) of the seat belt retractor.