CN109159755A - Locking system and seat belt retractor for seat belt retractor - Google Patents
Locking system and seat belt retractor for seat belt retractor Download PDFInfo
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- CN109159755A CN109159755A CN201811219707.6A CN201811219707A CN109159755A CN 109159755 A CN109159755 A CN 109159755A CN 201811219707 A CN201811219707 A CN 201811219707A CN 109159755 A CN109159755 A CN 109159755A
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- control panel
- seat belt
- inertance element
- belt retractor
- protrusion
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- 238000004804 winding Methods 0.000 claims abstract description 37
- 230000000694 effects Effects 0.000 claims description 10
- 210000003734 kidney Anatomy 0.000 claims description 10
- 230000006698 induction Effects 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 abstract description 9
- 230000001133 acceleration Effects 0.000 description 5
- 238000000605 extraction Methods 0.000 description 5
- 239000013589 supplement Substances 0.000 description 5
- 239000002184 metal Substances 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000036316 preload Effects 0.000 description 2
- 230000003313 weakening effect Effects 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/34—Belt retractors, e.g. reels
- B60R22/36—Belt retractors, e.g. reels self-locking in an emergency
- B60R22/38—Belt retractors, e.g. reels self-locking in an emergency responsive only to belt movement
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automotive Seat Belt Assembly (AREA)
Abstract
The present invention relates to a kind of locking systems and seat belt retractor for seat belt retractor, the locking system includes inertance element and control panel, the inertance element is pivotally supported between initial position and locked position of coupler around pivot axis, the inertance element is arranged in control panel and has ontology, the control panel can be driven by winding cartridge module to be rotated, the inertance element is pre-tightened by spring element towards initial position, and the inertia force towards locked position of coupler can be generated when accelerating on ribbon pull-out direction in winding cartridge module, the inertance element can be stopped on locked position of coupler, and therefore cause the locking of seat belt retractor, the inertance element has the protrusion stretched out from its ontology towards control panel, the control panel has through-hole, the protrusion passes through through-hole, the protrusion constitutes additional inertia mass.Band sense sensitivity can be improved whereby, reduce noise.
Description
Technical field
The present invention relates to a kind of locking systems for seat belt retractor and a kind of including such locking system
Seat belt retractor.
Background technique
Vehicle safety belt is the important component in vehicle occupant restraint system, can be especially in traffic accident
Vehicle occupant provides protection, avoids occupant from coming to harm or injury is reduced to minimum.It is continuous with vehicle population
Increase, requirement of the vehicle user to the security performance of vehicle safety belt is higher and higher.
Ribbon can be furled and can be pulled out from seat belt retractor by seat belt retractor.When needed, such as
When vehicle fiercely slows down, especially in vehicle emergency brake or when crashing, need that ribbon is prevented to continue to pull out, with
Just occupant is effectively constrained by ribbon, so that occupant is preferably protected.For this purpose, seat belt retractor should have urgent lock
Only function, so that winding cartridge module is by lock in emergency, so that ribbon cannot continue to pull up out from winding cartridge module.This can pass through
Ribbon pull-out acceleration is incuded to realize, locking system related to this is referred to as band sense locking system.
As automobile development pattern is more and more and vehicle integration degree is higher and higher, the size of seat belt retractor
The requirement of miniaturization is higher and higher, is also more next with locking system is felt in the requirement of its system integration and aspect compact in size
Higher.
In addition, requirement of the vehicle user to vehicle comfort be also it is higher and higher, especially in terms of vehicle noise, vehicle
User expects when vehicle travels as high as possible quietness in the car.Seat belt retractor includes many metal parts, it
When vehicle travels since the factors such as vehicle vibration may be collided mutually, thus cause certain noise.In order to improve vehicle
The comfort of safety belt when in use is expected to reduce seat belt retractor as much as possible under the premise of ensuring product reliability
Noise.
A kind of locking system for seat belt retractor as known to patent document EP2621767B1 comprising inertia member
Part, the spring element for pre-tightening inertance element towards initial position and the control panel for being configured to ratchet, the ratchet have from
The buckle element that its bottom surface is stretched out, the inertance element have on its radially outward edge there are two the slope shapes of two sides is set
Recline inclined-plane, the buckle element and the inclined-plane collective effect that reclines, for reducing the noise of inertance element in vehicle traveling.This
Structure is complicated for kind locking system, and part processing precision requires height, needs biggish axial dimension, reduces the periphery of inertance element
Quality and the rotary inertia of axis is pivoted about to reducing inertance element, therefore the sensitivity for improving spring element is wanted
Seek and improve the material selection difficulty of inertance element.Inertance element can be improved in the thickness or width for increasing inertance element
Inertia mass and rotary inertia, therefore improve locking system band sense sensitivity, but therefore but also locking system and
To which the overall dimensions of entire seat belt retractor increase, this is contradicted with the densification of seat belt retractor and miniaturization.
The relevant prior art is also shown patent document CN104755331A, and this document also discloses a kind of for safety belt volume
Receive the locking system of device and the seat belt retractor including such locking system.
Summary of the invention
It include such the object of the present invention is to provide a kind of locking system for seat belt retractor and one kind
The seat belt retractor of locking system can mention whereby in the case where the overall dimensions of seat belt retractor are held essentially constant
The band sense sensitivity of high locking system.
The purpose is reached by a kind of locking system for seat belt retractor, which includes inertance element
And control panel, the inertance element are pivotally supported between initial position and locked position of coupler around pivot axis, it is described used
Property element be arranged in control panel and have ontology, the control panel can by the winding cartridge module of seat belt retractor drive revolve
Turn, the inertance element is pre-tightened by spring element towards initial position, and is accelerated on ribbon pull-out direction in winding cartridge module
When can generate the inertia force towards locked position of coupler of the inertance element, the inertance element can be stopped on locked position of coupler, and
And therefore causing the locking of seat belt retractor, the inertance element has the protrusion stretched out from its ontology towards control panel, described
Control panel has through-hole, and the protrusion passes through the through-hole, and the protrusion constitutes additional inertia mass.
It is by the beneficial effect of locking system of the invention, is held essentially constant in the overall dimensions of seat belt retractor
In the case where, band sense sensitivity can be improved, the sensitivity design requirement of spring element can be reduced.
By a kind of advantageous embodiment of the invention, the inertance element has flat main body.
By a kind of advantageous embodiment of the invention, the quantity of the protrusion is 1,2,3 or more.
By a kind of advantageous embodiment of the invention, each protrusion is furnished with a through-hole.
By a kind of advantageous embodiment of the invention, each protrusion and corresponding through-hole are being dimensioned to, so that
Each protrusion motion range having the same in corresponding through-hole.Therefore the size of each through-hole can be made to minimize, to the greatest extent may be used
It can weakening of the ground reduction through-hole to the intensity of control panel.
By a kind of advantageous embodiment of the invention, the protrusion is configured to boss.
By a kind of advantageous embodiment of the invention, the radially outward edge of the ontology of inertance element is arranged in the protrusion
On.Therefore it can increase rotary inertia as much as possible in the case where increasing identical inertia mass.
By a kind of advantageous embodiment of the invention, protrusion gear on initial position leans against the hole edge of the through-hole
On the first area on edge.Therefore the stop part being separately provided can be abandoned, the stop part is such as in prior art EP2621767B1
In be needed.The axial dimension of locking system can be further decreased whereby.
By a kind of advantageous embodiment of the invention, the protrusion and/or the first area have the first inclined-plane, make
The inertance element under the action of spring force on initial position in spring element it is circumferential, axially and radially on it is described
First area support.
By a kind of advantageous embodiment of the invention, there is the protrusion L shape to buckle face, so that the inertance element
Under the action of the spring force on initial position in spring element it is circumferential, axially and radially on supported by the first area.
By a kind of advantageous embodiment of the invention, protrusion gear on the locked position of coupler of inertance element leans against described
On the second area at the hole edge of through-hole.
By a kind of advantageous embodiment of the invention, the protrusion and/or the second area have the second inclined-plane, make
The inertance element under the action of on lock position in inertia force it is circumferential, axially and radially on by the second area branch
Support.
By a kind of advantageous embodiment of the invention, there is the protrusion the 2nd L shape to buckle face, the 2nd L shape card
Buckle side has second inclined-plane.
By a kind of advantageous embodiment of the invention, the inertance element has arc-shaped wheel on radially outward edge
It is wide.
By a kind of advantageous embodiment of the invention, the inertance element is made of metal.
By a kind of advantageous embodiment of the invention, the inertance element has a teeth portion, the teeth portion be used for it is corresponding
Teeth portion collective effect, the corresponding teeth cage structure is on the bracket of seat belt retractor or construction is being fixedly connected with bracket
On component, wherein on the initial position of inertance element, the teeth portion is disengaged with corresponding teeth portion, and closing in inertance element
In lock position, the teeth portion is engaged with corresponding teeth portion.
By a kind of advantageous embodiment of the invention, the component being fixedly connected with bracket is fixed on bracket
Mechanical side cover.
By a kind of advantageous embodiment of the invention, the inertance element has pivoting hole, and the control panel has pivot
Shaft, the inertance element are pivotably mounted on pivotal axis by pivoting hole.
By a kind of advantageous embodiment of the invention, the control panel is configured to tank-like body, which includes one
Bottom and a circular circumferential wall.
By a kind of advantageous embodiment of the invention, the circumferential wall of the tank-like body is in the side of the bottom, or
Person stretches out relative to the bottom in two sides.
By a kind of advantageous embodiment of the invention, the circumferential wall is equipped with ratchet, institute with being distributed on outer circumference surface
Ratchet configuration is stated at for the pawl collective effect with vehicle induction device, so that the control panel is locked when pawl is engaged with ratchet
Only.Therefore realize vehicle sense latch functions with feel latch functions it is integrated.
By a kind of advantageous embodiment of the invention, the control panel can be connected by a snap and be rotatably installed in
On one axial end portion of winding cartridge module.
By a kind of advantageous embodiment of the invention, the control panel is integrally formed by injection molding.
By a kind of advantageous embodiment of the invention, the locking system further includes locking pawl and other spring element
Part, the control panel have kidney slot；The locking pawl is contained in the vacancy portion of an end regions of winding cartridge module, institute
Locking pawl is stated with pin shaft, the pin shaft is contained in kidney slot, and the pin shaft is the biography between winding cartridge module and control panel
Dynamic element；The locking pawl has teeth portion, and the teeth portion is used to prop up with corresponding teeth portion collective effect, the corresponding teeth cage structure
On frame or construction is on the component being fixedly connected with bracket；Radially inner side of the other spring element towards the kidney slot
The direction bias locking pawl of end, so that the teeth portion of locking pawl is disengaged from corresponding teeth portion；And it is locked up simultaneously in control panel
And winding cartridge module, when uncoiling direction rotates, the locking pawl is forced to guide, so that the teeth portion of locking pawl and corresponding teeth portion
Engagement, and to which winding cartridge module is locked up.Therefore latch functions are divided into triggering locking and main locking, with triggering locking
The relevant component of function only needs to be designed for side crops industry, therefore has very high flexibility in terms of material and size.
By a kind of advantageous embodiment of the invention, the spring element is configured to helical compression spring, the spiral pressure
Power spring is supported in control panel with one end and is supported on inertance element with its other end.
By a kind of advantageous embodiment of the invention, the inertance element be can be set the one of the bottom of control panel
Side, the pivot axis of the preferably described inertance element and the rotation axis of control panel extend parallel to separated by a distance.As an alternative,
The pivot axis of the inertance element and the rotation axis of control panel can also extend angularly in relation to one another.
The purpose also passes through a kind of seat belt retractor and reaches comprising bracket and is pivotally supported in bracket
Winding cartridge module, the seat belt retractor further include by the locking system for seat belt retractor of the invention.
The seat belt retractor has the advantageous effects realized by locking system.
At this it is noted that the technical characteristic recorded in application documents can in 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 present invention is explained in greater detail referring to embodiment with reference to the accompanying drawing.Schematical attached drawing is as follows:
Fig. 1 is the perspective view by the seat belt retractor of one embodiment of the present invention；
Fig. 2 is the view from unilateral observation by the locking system of one embodiment of the present invention on initial position
Figure；
Fig. 3 is the view from second side opposite with the first side of locking system as shown in Figure 2；
Fig. 4 is view from unilateral observation of the locking system on lock position；
Fig. 5 is the view from second side opposite with the first side of locking system as shown in Figure 4；
Fig. 6 is the view from unilateral observation of control panel；
Fig. 7 is the perspective view of control panel；
Fig. 8 is the perspective view of inertance element；And
Fig. 9 is the view of slave second side observation of inertance element.
Specific embodiment
Fig. 1 is the perspective view by the seat belt retractor of one embodiment of the present invention.The seat belt retractor includes
The not bracket of the bracket described in Fig. 1, particularly U-shaped, winding cartridge module 5 are pivotally supported in the bracket, ribbon energy
And it can be from uncoiling and pull-out on winding cartridge module 5 enough on winding cartridge module 5.In an axis of winding cartridge module 5
It is equipped with recess portion to end, locking pawl 5.1 is contained in the recess portion, which has teeth portion and pin shaft.
Control panel 4 is connected by a snap and is rotatably sleeved on the spindle nose 5.2 of winding cartridge module 5 with its centre bore 4.9
On.The control panel 4 has kidney slot 4.8, and the pin shaft of locking pawl 5.1 is inserted into kidney slot 4.8, and is not shown in Fig. 1
Spring element out towards kidney slot radially inner side direction bias.Locking pawl 5.1 and its pin shaft are in winding cartridge module 5 and control
It is driven between disk 4, control panel 4 is driven by winding cartridge module 5 and is rotated.When control panel 4 is locked up, winding cartridge module 5
Continuing to rotate towards ribbon extraction direction can force locking pawl 5.1 radially to move under the guidance of kidney slot 4.8, until locking
The teeth portion of pawl 5.1 is engaged with corresponding teeth portion, so that the corresponding teeth portion is arranged on bracket by 5 locking of winding cartridge module, or
It is arranged on the component fixed with bracket mechanical side cover 1 for example shown in FIG. 1.
As shown in Figure 1, control panel 4 is configured to tank-like body, there is a bottom and a circular circumferential wall, it should
Circumferential wall may be at the side of bottom, can also stretch out in two sides from bottom.Particularly advantageously, circumferential wall is in its excircle
There is the ratchet of distribution setting, these ratchets can be with the pawl collective effect of unshowned vehicle induction device on face.The vehicle sense
Device can for example incude the tilt angle of vehicle, and when tilt angle exceeds scheduled threshold value pawl be connect with ratchet
By 4 locking of control panel and therefore it closes, to trigger the locking of winding cartridge module 5.With the circumference wall section phase where ratchet
The inhibition device for inhibiting the vehicle sense function of vehicle induction device can be set in adjacent circumference wall section.About vehicle induction device and its
Inhibit device, device well known in the prior art can be used, the vehicle induction device of particularly preferred the applicant exploitation herein and its
Inhibit device.The full content of the first Chinese patent application 201811070903.1 and 201811070904.6 of the applicant,
Become the component part of the application by quoting herein.
Inertance element 3 is pivotally supported in control panel 4 around pivot axis between initial position and lock position,
Here, inertance element 3 has pivoting hole, control panel 4 has pivotal axis.It is parallel with the pivot axis that pivoting hole is formed by pivotal axis
In the axially bored line of the rotation axis centre bore 4.9 of control panel 4 in other words of control panel 4, and the pivot axis and control panel 4
Rotation axis is separated by a distance.Inertance element 3 has flat main body and multiple protrusions stretched out from main body.
The spring element 2 for being configured to helical spring is also shown in Fig. 1, which is supported on control panel with one end
It is supported on inertance element 3 on 4 and with its other end.As an alternative, the spring element 2 is also configured to leaf spring, steel wire
The spring element of spring, helix torsion spring or other forms.The spring element 2 pre-tightens inertance element towards initial position.
It is also shown mechanical side cover 1 in Fig. 1, can for example be fixed by screws on the bracket of seat belt retractor,
For accommodating and covering each component of locking system.It can be equipped in Fig. 1 on another axial end portion of winding cartridge module
The wind spring side cover not described, the wind spring side cover are equally fixed on bracket, for accommodating and covering so that winding cartridge module 5 is towards volume
Wind spring of the debit to preload.
Fig. 2 is the view from unilateral observation by the locking system of one embodiment of the present invention on initial position
Figure, and Fig. 3 is the view from second side opposite with the first side of locking system as shown in Figure 2.The locking system
It can apply in seat belt retractor as shown in Figure 1.Main component control panel 4, the inertia of locking system are only shown herein
Element 3 and spring element 2.
Inertance element 3 has pivoting hole 3.1, and control panel 4 has pivotal axis 4.1, and inertance element 3 is logical with its pivoting hole 3.1
It crosses the mode of snapping connection to be pivotably mounted on pivotal axis 4.1, the central axis of pivotal axis 4.1 and the centre bore of control panel 4
4.9 central axis is separated by a distance.Inertance element 3 has flat main body, so that the axial dimension of the main body is in inertia mass
It is maximumlly minimized simultaneously with rotary inertia.Inertance element 3 has the outer edge of arc-shaped extension, which exists
The trend of the inner peripheral surface of the circumferential wall of control panel 4 can be roughly parallel on the initial position of inertance element 3.Inertance element 3
On its outer edge, especially stopping element can have on outer peripheral end, which for example can be teeth portion
3.7。
Spring element 2 is accommodated with one end and is supported on the spring base of control panel 4, and is supported on its other end used
On one supporting surface of property element 3, so that inertance element 3 is extruded on initial position by spring element 2 with scheduled pretightning force.
In Fig. 2, spring element 2 is configured to pressure spring.As an alternative, tension spring is also possible.On the bracket of seat belt retractor, or
Person on for example mechanical side cover 1 of the component fixed with the bracket, can be set with the coefficient corresponding teeth portion of teeth portion 3.7 or
Person says corresponding stopping element.On initial position, teeth portion 3.7 and corresponding teeth portion, stopping element and corresponding stop member in other words
Part is disconnected from each other.
Three protrusions 3.3,3.4,3.5 of three through-holes and inertance element 3 of visible control panel 4 in Fig. 3, these are convex
Boss that is being respectively structured as stretching out from the ontology of inertance element and passing through through-hole is acted, each protrusion is corresponding equipped with one
Through-hole.Protrusion 3.3 has the first inclined-plane 3.2, and as an alternative or supplement, protrusion 3.4 can have the first inclined-plane and/or protrusion
3.5 can have the first inclined-plane 3.6.On the initial position of inertance element 3, preload of first inclined-plane 3.2 in spring element 2
It is sticked under the action of power on the first area 4.2 at the hole edge of the through-hole to match with protrusion 3.3, it is as an alternative or supplement, convex
The first inclined-plane for playing 3.4 sticks under the action of the pretightning force of spring element 2 the hole edge of the through-hole to match with protrusion 3.4
On first area 4.4, as an alternative or supplement, the first inclined-plane 3.6 of protrusion 3.5 is under the action of the pretightning force of spring element 2
It sticks on the first area 4.6 at the hole edge of the through-hole to match with protrusion 3.5.
Self-evident, only one of three protrusions are equipped with the first inclined-plane and just have been able to realize inertance element 3 relative to control
Stable support of the disk 4 on initial position in all directions, and therefore reduce or even be eliminated in vehicle traveling because used
Noise caused by property element 3.In the case where three protrusions are equipped with the first inclined-plane, also need not all three first inclined-planes with
The first area at the hole edge of corresponding through-hole is in close contact, such as protrusion 3.4 can be not provided with the first inclined-plane, can also be equipped with
First inclined-plane, firstth area at the hole edge of the through-hole on the first inclined-plane and matching of the corresponding end or protrusion 3.4 of protrusion 3.4
Domain can also separate small distance on initial position.As an alternative or supplement, the first inclined-plane can be constructed described first
On region.
By a kind of unshowned embodiment, three protrusions at least one of can have L shape buckle face, the L shape
Buckle face has first inclined-plane.For instance it can be possible that L shape buckle face can have two relative to each other first tiltedly
Face, they form wedge-like opening, which can clamp the first area at the hole edge of corresponding through-hole.
When ribbon is at the uniform velocity extracted out, winding cartridge module 5 evenly rotates on uncoiling direction, and control panel 4 is by belt reel group
Part 5 drives, and evenly rotates together with winding cartridge module 5, the companion under the action of pretightning force of spring element 2 of inertance element 3
Control panel 4 rotates together.Winding cartridge module 5 drives control panel 4 and then inertance element 3 is driven to rotate together.When ribbon accelerates
When extraction, with the raising of ribbon extraction acceleration, the inertia force on inertance element is increased accordingly.When ribbon extracts acceleration out
When reaching a first threshold, the pretightning force of inertia force and spring element reaches balance.When ribbon extraction acceleration further mentions
Gao Shi, inertia force are more than the pretightning force of spring element, and inertance element 3 is pivoted relative to control panel 4, flat until reaching power again
Weighing apparatus.When ribbon extraction acceleration is further increased to higher second threshold, inertance element 3 is pivoted to relative to control panel 4
Up to lock position, such as teeth portion 3.7 of the stopping element on inertance element 3 is be arranged on bracket or setting in machinery at this time
Correspondence stopping element on side cover 1 for example corresponds to teeth portion engagement, so that control panel 4 is locked up, and therefore triggers winding
The locking of cartridge module 5, prevent ribbon is from continuing to pull out from winding cartridge module 5.
Fig. 4 is view from unilateral observation of the locking system on lock position, and Fig. 5 is locking dress as shown in Figure 4
The view from second side opposite with the first side set.Main component control panel 4, the inertia of locking system are only shown herein
Element 3 and spring element 2.
On the lock position of inertance element 3,3.3 gear of protrusion leans against the second of the hole edge of the through-hole to match with the protrusion
On region 4.3, on the second area 4.5 at the hole edge that 3.4 gear of protrusion leans against the through-hole to match with the protrusion, and protrusion 3.5
Gear leans against on the second area 4.7 at the hole edge of the through-hole to match with the protrusion.
Self-evident, only one of three protrusions keep off the second area for leaning against the hole edge of through-hole of matching on lock position
On, it just has been able to reliably guarantee that inertance element 3 is steadily on locked position of coupler, to guarantee the reliable of locking system
Latch functions.
Similarly with the setting on the first inclined-plane, three protrusions at least one of can also be total with the second area
Second inclined-plane is set on the position of same-action.As an alternative or supplement, the second inclined-plane can also be set on the second area.
Therefore it reduces or even is eliminated on lock position because of noise caused by inertance element 3.The second inclined-plane is equipped in three protrusions
In the case where, also need not all three second inclined-planes with the second area at the hole edge of corresponding through-hole be in close contact.
Fig. 6 is the view from unilateral observation of control panel 4, and Fig. 7 is the perspective view of control panel 4.Herein it is visible with
The details for three through-holes that three protrusions match.Spring base for spring element 2 is configured to tubular.For pivotly
The pivotal axis 4.1 of support inertance element 3 is configured to pin-shaped, vertically stretches out from the bottom of control panel 4.Entire control panel
Or the major part of control panel 4 can be for example integrally formed by injection molding.
Fig. 8 is the perspective view of inertance element 3, and Fig. 9 is the view of slave second side observation of inertance element.It is visible herein
The details of three protrusions 3.3,3.4,3.5, they are respectively structured as boss, are arranged on the radially outward edge of inertance element.By
In these three protrusions as additional inertia masses in the case where not increasing radial dimension as far away from pivot axis, because
This can bring rotary inertia as big as possible in the case where phase homogenous quantities.Separately have since these three protrusions are using in the axial direction
Natively already existing space, therefore also achieve the inertia matter for increasing inertance element in the case where not increasing axial dimension
Amount and rotary inertia.The raising with sense sensitivity of locking system is realized whereby.Entire inertance element 3 can pass through metal pressure
It casts and is made.
In prior art EP2621767B1, in order to realize reduction noise, it is arranged on the radially outward edge of inertance element
The inclined-plane that reclines of slope shape, this disadvantageously reduces the inertia mass far from pivot axis and therefore has lost biggish rotation
Inertia, it reduce bands to feel sensitivity.
By in technical solution of the present invention, it is not necessary to be arranged on the radially outward edge of inertance element to reduce noise
The inclined-plane that reclines of slope shape passes through raised inertance element and the control panel with through-hole by the present invention at the same time
Collective effect can not only improve band sense sensitivity in the case where the overall dimensions of seat belt retractor are held essentially constant,
And noise can be reduced.In addition, structure is simpler, easily fabricated and assembly.
The quantity of protrusion and the quantity of through-hole are all schematical, it goes without saying that 1 or 2 protrusions can also only be arranged
And through-hole, greater number of protrusion and through-hole also can be set.Each protrusion can be furnished with a through-hole.It is also possible that two
A protrusion is furnished with a through-hole.However particularly advantageously, each protrusion and corresponding through-hole fit each other in terms of size, so that
Each protrusion motion range having the same in corresponding through-hole, so that the size of each through-hole minimizes, so that through-hole
Minimum is reached to the weakening of the intensity of control panel.
The present invention is described in more details by specific embodiment above.Finally, it is noted that of the invention
Above-mentioned specific embodiment is used only for understanding the present invention, without being construed as limiting to protection scope of the present invention.For this field skill
For art personnel, modification can be made on the basis of the above embodiments, all such modifications are without departure from protection of the invention
Range.
Claims (10)
1. a kind of locking system for seat belt retractor, which includes inertance element (3) and control panel (4), institute
It states inertance element (3) to be pivotally supported between initial position and locked position of coupler around pivot axis, the inertance element (3)
It is arranged on control panel (4) and has ontology, the control panel (4) can be by winding cartridge module (5) band of seat belt retractor
Dynamic rotation, the inertance element (3) are pre-tightened by spring element (2) towards initial position, and draw in winding cartridge module (5) in ribbon
The inertia force towards locked position of coupler of the inertance element (3) can be generated when accelerating on direction out, the inertance element (3) is being latched
It can be stopped on position, and therefore cause the locking of seat belt retractor, which is characterized in that the inertance element (3) has
The protrusion stretched out from its ontology towards control panel (4), the control panel (4) have through-hole, and the protrusion passes through the through-hole, described
Protrusion constitutes additional inertia mass.
2. the locking system according to claim 1 for seat belt retractor, which is characterized in that the inertance element
(3) there is flat main body；And/or
The quantity of the protrusion is 1,2,3 or more；And/or
Each protrusion is furnished with a through-hole；
Preferably, each protrusion and corresponding through-hole are configured in terms of size, so that each protrusion has phase in corresponding through-hole
Same motion range.
3. the locking system according to claim 1 or 2 for seat belt retractor, which is characterized in that the protrusion structure
As boss；And/or
The protrusion is arranged on the radially outward edge of the ontology of inertance element (3)；And/or
Protrusion gear on initial position leans against on the first area at hole edge of the through-hole；
Preferably, the protrusion and/or the first area have the first inclined-plane, so that the inertance element is on initial position
Under the action of the spring force of spring element it is circumferential, axially and radially on supported by the first area；
Preferably, there is the protrusion L shape to buckle face, so that the inertance element is on initial position in the spring of spring element
Under the action of power it is circumferential, axially and radially on supported by the first area.
4. the locking system according to any one of claim 1 to 3 for seat belt retractor, which is characterized in that institute
Protrusion gear on the locked position of coupler of inertance element is stated to lean against on the second area at hole edge of the through-hole；And/or
The inertance element (3) has arc-shaped profile on radially outward edge；And/or
The inertance element (3) has teeth portion (3.7), and the teeth portion (3.7) is used for and corresponding teeth portion collective effect, the correspondence
Teeth portion construction is on the bracket of seat belt retractor or construction is on the component being fixedly connected with bracket, wherein in inertia member
On the initial position of part (3), the teeth portion (3.7) disengages with corresponding teeth portion, and on the locked position of coupler of inertance element (3),
The teeth portion (3.7) is engaged with corresponding teeth portion；
Preferably, the component being fixedly connected with bracket is the mechanical side cover (1) being fixed on bracket.
5. the locking system according to any one of claim 1 to 4 for seat belt retractor, which is characterized in that institute
Inertance element (3) are stated with pivoting hole (3.1), the control panel (4) has pivotal axis (4.1), and the inertance element (3) passes through
Pivoting hole (3.1) is pivotably mounted on pivotal axis (4.1).
6. the locking system according to any one of claim 1 to 5 for seat belt retractor, which is characterized in that institute
It states control panel (4) and is configured to tank-like body, which includes a bottom and a circular circumferential wall；
Preferably, the circumferential wall of the tank-like body is in the side of the bottom, or stretches out relative to the bottom in two sides；
Preferably, the circumferential wall be distributed on outer circumference surface be equipped with ratchet, the ratchet configuration at be used for and vehicle induction device
Pawl collective effect so that the control panel (4) is locked up when pawl is engaged with ratchet；
Preferably, the inertance element is arranged in the side of the bottom of control panel, and the pivot axis of the inertance element with
The rotation axis of control panel extends parallel to separated by a distance.
7. the locking system according to any one of claim 1 to 6 for seat belt retractor, which is characterized in that institute
Stating control panel (4) can be connected by a snap and be rotatably installed on an axial end portion of winding cartridge module (5)；And/or
The control panel (4) is integrally formed by injection molding.
8. the locking system according to any one of claim 1 to 7 for seat belt retractor, which is characterized in that institute
Stating locking system further includes locking pawl and other spring element, and the control panel (4) has kidney slot；
The locking pawl is contained in the vacancy portion of an end regions of winding cartridge module (5), and the locking pawl has pin shaft,
The pin shaft is contained in kidney slot, and the pin shaft is the actuated element between winding cartridge module (5) and control panel (4)；
The locking pawl have teeth portion, the teeth portion be used for corresponding teeth portion collective effect, the corresponding teeth cage structure is in bracket
Upper or construction is on the component being fixedly connected with bracket；
The other spring element towards the radially inner side end of the kidney slot direction bias locking pawl so that locking pawl
Teeth portion is disengaged from corresponding teeth portion；And
When control panel (4) is locked up and winding cartridge module (5) rotates in uncoiling direction, the locking pawl is forced to guide,
So that the teeth portion of locking pawl is engaged with corresponding teeth portion, and to which winding cartridge module (5) are locked up.
9. the locking system according to any one of claim 1 to 8 for seat belt retractor, which is characterized in that institute
State spring element (2) and be configured to helical compression spring, the helical compression spring be supported on control panel (4) with one end and with
Its other end is supported on inertance element (3).
10. a kind of seat belt retractor comprising bracket and the winding cartridge module (5) being pivotally supported in bracket, it is special
Sign is that the seat belt retractor further includes according to any one of claim 1 to 9 for seat belt retractor
Locking system.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811219707.6A CN109159755A (en) | 2018-10-19 | 2018-10-19 | Locking system and seat belt retractor for seat belt retractor |
| PCT/CN2019/107385 WO2020078171A1 (en) | 2018-10-19 | 2019-09-24 | Locking device for seat belt retractor, and seat belt retractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811219707.6A CN109159755A (en) | 2018-10-19 | 2018-10-19 | Locking system and seat belt retractor for seat belt retractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109159755A true CN109159755A (en) | 2019-01-08 |
Family
ID=64878428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811219707.6A Pending CN109159755A (en) | 2018-10-19 | 2018-10-19 | Locking system and seat belt retractor for seat belt retractor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109159755A (en) |
| WO (1) | WO2020078171A1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110481490A (en) * | 2019-08-28 | 2019-11-22 | 浙江松原汽车安全系统股份有限公司 | A kind of coiler lockable mechanism and coiler |
| WO2020078171A1 (en) * | 2018-10-19 | 2020-04-23 | 延锋汽车智能安全系统有限责任公司 | Locking device for seat belt retractor, and seat belt retractor |
| WO2021027507A1 (en) | 2019-08-12 | 2021-02-18 | 延锋汽车智能安全系统有限责任公司 | Safety belt retractor and safety belt device |
| RU207688U1 (en) * | 2021-09-08 | 2021-11-11 | Федеральное государственное унитарное предприятие «Всероссийский научно-исследовательский институт автоматики им.Н.Л.Духова» (ФГУП «ВНИИА») | Locking device |
| RU208161U1 (en) * | 2021-09-08 | 2021-12-06 | Федеральное государственное унитарное предприятие «Всероссийский научно-исследовательский институт автоматики им.Н.Л.Духова» (ФГУП «ВНИИА») | Locking device |
| RU208569U1 (en) * | 2021-09-08 | 2021-12-24 | Федеральное Государственное Унитарное Предприятие "Всероссийский Научно-Исследовательский Институт Автоматики Им.Н.Л.Духова" (Фгуп "Внииа") | Locking device |
| CN114655157A (en) * | 2020-12-23 | 2022-06-24 | 延锋汽车智能安全系统有限责任公司 | Seat belt retractor and locking device for a seat belt retractor |
| RU212738U1 (en) * | 2022-04-05 | 2022-08-04 | Федеральное Государственное Унитарное Предприятие "Всероссийский Научно-Исследовательский Институт Автоматики Им.Н.Л.Духова" (Фгуп "Внииа") | Locking device |
| WO2022252933A1 (en) | 2021-05-31 | 2022-12-08 | 延锋汽车智能安全系统有限责任公司 | Seat belt retractor |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020078171A1 (en) * | 2018-10-19 | 2020-04-23 | 延锋汽车智能安全系统有限责任公司 | Locking device for seat belt retractor, and seat belt retractor |
| WO2021027507A1 (en) | 2019-08-12 | 2021-02-18 | 延锋汽车智能安全系统有限责任公司 | Safety belt retractor and safety belt device |
| EP4015317A4 (en) * | 2019-08-12 | 2023-09-27 | Yanfeng Automotive Safety Systems Co., Ltd | Safety belt retractor and safety belt device |
| CN110481490A (en) * | 2019-08-28 | 2019-11-22 | 浙江松原汽车安全系统股份有限公司 | A kind of coiler lockable mechanism and coiler |
| CN114655157A (en) * | 2020-12-23 | 2022-06-24 | 延锋汽车智能安全系统有限责任公司 | Seat belt retractor and locking device for a seat belt retractor |
| CN114655157B (en) * | 2020-12-23 | 2024-04-12 | 延锋汽车智能安全系统有限责任公司 | Seatbelt retractor and stopper for seatbelt retractor |
| WO2022252933A1 (en) | 2021-05-31 | 2022-12-08 | 延锋汽车智能安全系统有限责任公司 | Seat belt retractor |
| RU207688U1 (en) * | 2021-09-08 | 2021-11-11 | Федеральное государственное унитарное предприятие «Всероссийский научно-исследовательский институт автоматики им.Н.Л.Духова» (ФГУП «ВНИИА») | Locking device |
| RU208161U1 (en) * | 2021-09-08 | 2021-12-06 | Федеральное государственное унитарное предприятие «Всероссийский научно-исследовательский институт автоматики им.Н.Л.Духова» (ФГУП «ВНИИА») | Locking device |
| RU208569U1 (en) * | 2021-09-08 | 2021-12-24 | Федеральное Государственное Унитарное Предприятие "Всероссийский Научно-Исследовательский Институт Автоматики Им.Н.Л.Духова" (Фгуп "Внииа") | Locking device |
| RU212738U1 (en) * | 2022-04-05 | 2022-08-04 | Федеральное Государственное Унитарное Предприятие "Всероссийский Научно-Исследовательский Институт Автоматики Им.Н.Л.Духова" (Фгуп "Внииа") | Locking device |
| RU215251U1 (en) * | 2022-08-03 | 2022-12-06 | Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт автоматики им. Н.Л. Духова" (ФГУП "ВНИИА") | Locking device |
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|---|---|
| WO2020078171A1 (en) | 2020-04-23 |
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