CN101973243B - Safety belt retractor with external children protection latch mechanism - Google Patents
Safety belt retractor with external children protection latch mechanism Download PDFInfo
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- CN101973243B CN101973243B CN2010105239203A CN201010523920A CN101973243B CN 101973243 B CN101973243 B CN 101973243B CN 2010105239203 A CN2010105239203 A CN 2010105239203A CN 201010523920 A CN201010523920 A CN 201010523920A CN 101973243 B CN101973243 B CN 101973243B
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Abstract
The invention belongs to the technical field of automobile safety belt retractors, and in particular relates to a safety belt retractor with an external children protection latch mechanism. The safety belt retractor with the external children protection latch mechanism comprises an urgent latch type safety belt, a children protection eccentric wheel, a children protection reset spring, a triggering torsional spring and a children protection triggering gear. The safety belt retractor with the external children protection latch mechanism is characterized in that the external children protection latch mechanism is spliced on an outer cover of the urgent latch type safety belt; the external children protection latch mechanism comprises a children protection eccentric wheel, a children protection reset spring, a children protection triggering plate, a children protection triggering claw, a children protection triggering gear, a triggering torsional spring and a children protection cover. Compared with the prior art, the invention has compact structure, ensures that the external children protection latch mechanism is conveniently spliced without changing the original safety belt structure, saves the reformation cost, effectively protects safety of children on an automobile, realizes that an automatic latch type retractor and the urgent latch type retractor can be freely switched and solves the problem that the ordinary urgent latch type safety belt can not be mounted in a reversible seat.
Description
[technical field]
The present invention relates to the automobile safety belt retractor technical field, specifically a kind of Webbing retractor with external protection of the child lockable mechanism.
[background technology]
Because children's health is more much smaller than the adult, on automotive seat, the general automobiles safety strap can not be protected children by actv.; Even owing to inappropriately wear the injury that can cause children, and child is more active than the adult, if there is not a kind of actv. protection children's measure; When children rode, if accident such as bump, then children caused danger easily; Therefore when children are carborne,, must use child seat for child's safety; Child seat need be fixed on the automotive seat it through safety strap, and the common lock in emergency formula safety strap that uses does not at present have protection of the child function; When using of seat belts fixing child seat, can't be fixed on child seat above the car belt effectively.
Therefore, need on common lock in emergency formula safety strap, increase protection of the child lockable mechanism, realize protection of the child function; While, when seat overturn forward, taking-up device can and then overturn when being contained in the seat because of safety strap, thus must eliminate car body induction locking, the free tip-up set of ability, so also need increase the locking zeroing mechanism.
[summary of the invention]
The objective of the invention is to overcome the deficiency of prior art; On the situation that does not change original common lock in emergency formula safety strap structure; Design a kind of protection of the child lockable mechanism that conveniently patches, when imitating the ground fixing child seat, can also between protection of the child function and locking cancellation function, freely switch; Reach the function of adult and the shared safety strap of children, solve the problem that common lock in emergency formula safety strap can't be installed the seat that can overturn.
For realizing above-mentioned purpose; Design a kind of Webbing retractor with external protection of the child lockable mechanism; Comprise lock in emergency formula safety strap; Children's health care eccentric wheel, children's health care retracing spring, triggering torsion spring, children's health care trigger gear, and it is characterized in that: outer the covering at lock in emergency formula safety strap is plugged with external protection of the child lockable mechanism; Outer taking-up device rotating shaft place that covers corresponding lock in emergency formula safety strap of described lock in emergency formula safety strap also is provided with the axis hole base of evagination, covers outward also to be provided with to trigger pawl slotted eye, responsive pawl slotted eye and triggering dish limiting stopper; The proximal edge place corresponding to the latch ratchet of lock in emergency formula safety strap of described triggering pawl slotted eye; Described responsive pawl slotted eye is positioned at the outer position, top that covers corresponding responsive pawl, and the sub-position of responsive pawl pin of responsive pawl is embedded in this sensitivity pawl slotted eye; External protection of the child lockable mechanism comprises that children's health care eccentric wheel, children's health care retracing spring, children's health care triggering dish, children's health care trigger pawl, children's health care triggers gear, triggering torsion spring, children's health care lid.
Children's health care triggering dish top in the external protection of the child lockable mechanism is made as ring body subordinate side and is made as the position-limited trough board; Ring body portion is provided with the upper limit slotted eye of the arc of conformal, the approximate quadrant of being inverted of position-limited trough board, and this quadrant top one side is established spring pin; Form upper right position-limited trough between the ring body portion of spring pin and top; The bottom right position-limited trough is established in the quadrant outside of spring pin below, and this quadrant top opposite side is provided with arched arm, formation arc position-limited trough between arched arm and the round body portion on it; Arched arm and the position-limited trough board under it form the dihedral position-limited trough, and bottom, described arched arm lower end also is provided with the crown groove of little arc; Children's health care triggers the lifting-hook plate that pawl adopts the lifting-hook shape; Lifting-hook plate top is riser; Riser one sidewall is provided with the torsion spring position-limited trough, and the riser top is provided with level to axis hole, and lifting-hook plate bottom is a hook; Be provided with the hook-type flange bar of the horizontal arrangement of conformal in one side, nearly most advanced and sophisticated place, the bottom of hook, the outer end points of hook is a crown; Children's health care triggers wheel tooth portion one side and is provided with pin; The children's health care lid, its inboard is provided with nested children's health care and triggers the gear grooved that gear is used; Trigger torsion spring for to be bent to form spring arm respectively downwards in opposite directions at the two ends of spring coil, two spring arm bottoms are provided with the snap hook of equidirectional bending, leave the gap between two snap hooks; The ring body portion of children's health care triggering dish is socketed on the axis hole base; The built-in children's health care eccentric wheel of axis hole base; Be coupling the respectively rotating shaft and the children's health care of the taking-up device in the lock in emergency formula safety strap of the eccentric eccentric shaft of children's health care two ends triggers gear, wherein can adopt nested the connection between eccentric shaft and the rotating shaft; Hook-type flange bar one end that children's health care triggers pawl embeds in the triggering pawl slotted eye, and the level that children's health care triggers pawl is coupling in the edge of the enclosing cover that triggers pawl slotted eye top to axis hole; The level that the spring coil on triggering torsion spring top is fixed in the lifting-hook plate is on the axis hole outer wall; The snap hook of triggering torsion spring bottom triggers corresponding to children's health care on the travel path of the torsion spring position-limited trough on the pawl, and children's health care covers the outer rear flank that is coated on children's health care triggering gear, children's health care triggering pawl and triggers torsion spring and is fixed in outer covering.
The upper limit slotted eye of the arched arm of the position-limited trough board of children's health care triggering dish, spring pin, ring body portion respectively with cover cooresponding triggering dish limiting stopper outward and match corresponding; Described triggering dish limiting stopper comprises triggering dish limiting stopper, left triggering dish limiting stopper, right triggering dish limiting stopper, and wherein, last triggering dish limiting stopper embeds in the upper limit slotted eye in the ring body portion; Left side triggering dish limiting stopper and arched arm are positioned on the concentric circles; Corresponding spring pin place is provided with another spring pin on the right triggering dish limiting stopper; Spring pin and another spring pin are positioned on the concentric circles; And be socketed with the children's health care retracing spring between spring pin and another spring pin, right triggering dish limiting stopper and bottom right position-limited trough also are positioned on the concentric circles.
The bottom margin of position-limited trough board is provided with flange.
The children's health care lid adopts buckle to be connected with enclosing cover and fixes.
The crown lateral surface that children's health care triggers the hook of pawl is provided with chimb.
The corresponding children's health care of described crown groove triggers the crown of pawl.
The present invention compares with prior art, and its compact conformation is reasonable in design; Under the situation that does not change original safety strap structure; Patch external protection of the child lockable mechanism easily, promptly on common lock in emergency formula safety strap, increase protection of the child lockable mechanism function, not only saved improvement expenses; And effectively child seat is implemented to fix, thereby the safety of protection children on automobile; Can also realize that in addition automatic-locking type taking-up device and lock in emergency formula taking-up device freely switch, be convenient to children and the shared safety strap of adult, and solve the problem that common lock in emergency formula safety strap can't be installed the seat that can overturn.
[description of drawings]
Fig. 1 is the STRUCTURE DECOMPOSITION scheme drawing in the embodiment of the invention.
Fig. 2 is the scheme drawing that children's health care triggers pawl in the embodiment of the invention.
Fig. 3 is the scheme drawing that children's health care triggers another angle of pawl in the embodiment of the invention.
Fig. 4 is the scheme drawing of enclosing cover in the embodiment of the invention.
Fig. 5 is the scheme drawing of children's health care triggering dish in the embodiment of the invention.
Fig. 6 is the scheme drawing that triggers torsion spring in the embodiment of the invention.
Fig. 7 is the scheme drawing of children's health care lid in the embodiment of the invention.
Fig. 8 is the initial installation site scheme drawing of protection of the child lockable mechanism in the embodiment of the invention.
Fig. 8-1～8-5 is the motion schematic flow sheet of motion process in the embodiment of the invention.
Fig. 9-1～9-6 is that children's health care triggers the movement position scheme drawing of gear in the children's health care lid in the embodiment of the invention.
[specific embodiment]
Combine accompanying drawing below at present, the present invention is done explanation further, but do not limit protection scope of the present invention.
Among the present invention; The switching of protection of the child function AL and locking cancellation function LC is a key of the present invention; AL function and LC function integrated realized the upset of seat within the specific limits, needn't design new mechanism in addition again and realize turnover seat; Length that this switching can be pulled out through the ribbon in the lock in emergency Webbing retractor and client's actual conditions change the mutual conversion range between belt-sesitive type retractor ALR and the urgent locking taking-up device ELR.
In the time of needs protection of the child function, only need all move ribbon the end to, can trigger protection of the child function; When not needing protection of the child function AL; Can start locking cancellation function LC,, let the free backrush of ribbon in taking-up device as long as untie the dead bolt of ribbon and being connected of mortise lock; Get final product release; When general occupant does not need protection of the child function, need only the method for wearing according to common safety strap, wear safety belt gets final product.
One, physical construction is referring to Fig. 1～Fig. 7
The present invention includes lock in emergency formula safety strap, children's health care eccentric wheel, children's health care retracing spring, triggering torsion spring, children's health care trigger gear etc., wherein, on the enclosing cover 4 of lock in emergency formula safety strap, are plugged with external protection of the child lockable mechanism;
Taking-up device rotating shaft 15 places of corresponding lock in emergency formula safety strap also are provided with the axis hole base 17 of evagination on the enclosing cover 4 of described lock in emergency formula safety strap, also are provided with on the enclosing cover 4 to trigger pawl slotted eye 22, responsive pawl slotted eye 23 and triggering dish limiting stopper; The proximal edge place corresponding to the latch ratchet 2 of lock in emergency formula safety strap of described triggering pawl slotted eye 22; Described responsive pawl slotted eye 23 is positioned at the outer position, top that covers corresponding responsive pawl 3, and the sub-position of responsive pawl pin of responsive pawl 3 is embedded in this sensitivity pawl slotted eye 23;
External protection of the child lockable mechanism comprises that children's health care eccentric wheel 5, children's health care retracing spring 12, children's health care triggering dish 6, children's health care trigger pawl 13, children's health care triggers gear 7, triggering torsion spring 14, children's health care lid 8, wherein,
Children's health care triggering in the external protection of the child lockable mechanism is coiled 6 tops and is made as ring body subordinate side and is made as the position-limited trough board; Ring body portion is provided with the upper limit slotted eye 30 of the arc of conformal; The approximate quadrant of being inverted of position-limited trough board; This quadrant top one side is established spring pin 32; Form upper right position-limited trough 36 between the ring body portion of spring pin 32 and top; Bottom right position-limited trough 31 is established in the quadrant of the spring pin 32 belows outside, and this quadrant top opposite side is provided with arched arm 28, formation arc position-limited trough 29 between arched arm 28 and the round body portion on it; Arched arm 28 and the position-limited trough board under it form dihedral position-limited trough 34, and bottom, described arched arm 28 lower ends also is provided with the crown groove 33 of little arc;
Children's health care triggers the lifting-hook plate that pawl 13 adopts the lifting-hook shape; Be that top is riser, lifting-hook plate bottom is a hook 37, and riser one sidewall is provided with torsion spring position-limited trough 25; The riser top is provided with level to axis hole 24; Hook 37 embeds when initial in the dihedral position-limited trough 34, is provided with the hook-type flange bar 26 of the horizontal arrangement of conformal in one side, nearly most advanced and sophisticated place, the bottom of hook 37, and the outer end points of hook 37 is a crown 35;
Children's health care triggers gear 7 tooth portions one side and is provided with pin 7-1;
Children's health care lid 8, its inboard is provided with the gear grooved 8-2 that nested children's health care triggers gear 7 usefulness, and gear grooved 8-2 and children's health care trigger between the gear 7 gapped;
Trigger torsion spring 14 for to be bent to form spring arm 14-2 respectively downwards in opposite directions at the two ends of spring coil 14-1, two spring arm 14-2 bottoms are provided with the snap hook 14-3 of equidirectional bending, leave the gap between two snap hook 14-3;
The ring body portion of children's health care triggering dish 6 is socketed on the axis hole base 17, axis hole base 17 built-in children's health care eccentric wheel 5, and taking-up device rotating shaft 15 and children's health care that the eccentric shaft 5-1 two ends of children's health care eccentric wheel 5 are coupling respectively in the lock in emergency formula safety strap trigger gear 7; Hook-type flange bar 26 1 ends that children's health care triggers pawl 13 embed in the triggering pawl slotted eye 22, and the level that children's health care triggers pawl 13 is coupling in the edge of the enclosing cover 4 that triggers pawl slotted eye 22 tops to axis hole 24; The level that the spring coil 14-1 on triggering torsion spring 14 tops is fixed in the lifting-hook plate is on axis hole 24 outer walls; The snap hook 14-3 that triggers torsion spring 14 bottoms triggers corresponding to children's health care on the travel path of the torsion spring position-limited trough 25 on the pawl 13, and children's health care lid 8 is coated on children's health care and triggers the outer rear flank that gear 7, children's health care trigger pawl 13 and trigger torsion spring 14 and be fixed on the enclosing cover 4.
The upper limit slotted eye 30 of the arched arm 28 of the position-limited trough board of children's health care triggering dish 6, spring pin 32, ring body portion respectively with enclosing cover 4 on cooresponding triggering dish limiting stopper match corresponding; Described triggering dish limiting stopper comprises triggering dish limiting stopper 20, left triggering dish limiting stopper 19, right triggering dish limiting stopper 18, and wherein, last triggering dish limiting stopper 20 embeds in the upper limit slotted eye 30 in the ring body portion; Left side triggering dish limiting stopper 19 is positioned at arched arm 28 and plays withstand effect on the concentric circles; Corresponding spring pin 32 places are provided with another spring pin 21 on the right triggering dish limiting stopper 18; Spring pin 32 is positioned on the concentric circles with another spring pin 21; And be socketed with children's health care retracing spring 12 between spring pin 32 and another spring pin 21, right triggering dish limiting stopper 18 also is positioned at bottom right position-limited trough 31 and plays the butt position-limiting action on the concentric circles.
Children's health care triggering dish 6 and responsive pawl slotted eye 23, responsive pawl 3 can form the locking zeroing mechanism, promptly push down responsive pawl 3 when children's health care triggering dish 6, and latch ratchet 2 can not be contacted with responsive pawl 3, thereby realize locking cancellation function.
The bottom margin of position-limited trough board is provided with flange.
Can adopt buckle to be connected on children's health care lid 8 and the enclosing cover 4 and fix, be convenient to patch assembling, can cover 8 edges at children's health care and establish buckle 8-1, establish buckle slot 16 in enclosing cover 4 corresponding positions, bayonet socket and bayonet slot are established two at least.
Described crown groove 33 corresponding children's health cares trigger the crown 35 of the hook 37 of pawl 13.
Two, principle of work
1, protection of the child function AL: children's health care triggers the hook-type flange bar 26 and latch ratchet 2 one way engagement of pawl 13; Ribbon in the lock in emergency formula safety strap can only cw backrush under the drive of wind spring; And can not being pulled out, thereby the function of realization fixing child seat by left-hand revolution.
The realization of AL function: the drive of the children's health care eccentric wheel 5 through the centre, children's health care trigger gear 7 eccentric rotation in the track of children's health care lid 8 regulations, and the number of teeth that the recessed tooth slot-number ratio children's health care of the gear grooved 8-2 in this example in the children's health care lid 8 triggers gear 7 is many; Under the eccentric force effect of children's health care eccentric wheel 5, and be meshing with each other on the angle design of tooth protect triggering gear 7 and children's health care lid gear grooved 8-2, guarantee that children's health care triggers gear 7 and covers between the gear grooved 8-2 in 8 with children's health care and have traditional method of indicating the pronunciation of a Chinese character power; Make children's health care eccentric wheel 5 drive children's health care and trigger gear 7 work and the 5 rightabout rotations of children's health care eccentric wheel in children's health care lid 8, in rotary course, children's health care triggers gear 7 off-centre and rotates a circle; Ribbon is released, and ribbon can be pulled out fully, when ribbon is pulled out fully; Protection of the child function AL starts, at this moment, and when the ribbon dead bolt is inserted on the mortise lock after the fixing child seat; Ribbon can only backrush under the effect of wind spring, can not be drawn out; Thereby safety strap can firmly be fixed child seat, reach effective protection children's effect.Children's health care eccentric wheel 5 and children's health care trigger the principle that rotatablely moves of gear 7 and children's health care lid 8 referring to accompanying drawing 9-1～accompanying drawing 9-6, suppose that the original position of pin 7-1 is embedded in the recessed teeth groove of the gear grooved 8-2 at perpendicular line bottom position places in the children's health care dish 8, referring to accompanying drawing 9-1; Then referring to accompanying drawing 9-2; Behind children's health care eccentric wheel 5 left-hand revolution certain angles; The upper right corner of the recessed teeth groove of the upper left corner of the tooth on the children's health care triggering gear 7 that this moment, pin 7-1 belonged to and the gear grooved 8-2 at its place produces traditional method of indicating the pronunciation of a Chinese character power, and is impelling children's health care to trigger gear 7 clickwise in children's health care lid 8 under the eccentric effect of children's health care; Referring to the position shown in the accompanying drawing 9-6, behind 337.5 ° of children's health care eccentric wheel 5 continuous left-hand revolutions, just the tooth at pin 7-1 place dextrorotation go in the contiguous recessed teeth groove of the left side.
When the AL of protection of the child function does not originally trigger; Taking-up device 1 in the lock in emergency formula safety strap is a lock in emergency formula taking-up device; Ribbon can pull out and furl, ribbon left-hand revolution pull out process in, children's health care eccentric wheel 5 has driven children's health care and has triggered gear 7 clickwises; Rotate to certain angle when children's health care triggers gear 7, the pin 7-1 on the children's health care triggering gear 7 just touches the right side of children's health care triggering dish 6; Children's health care triggering dish 6 triggers at children's health care under the promotion of gear 7 around axis hole base 17 clickwise together then; Slip over children's health care and trigger pawl 13, under the application force that triggers torsion spring 14, the hook-type flange bar 26 of a side of children's health care triggering pawl 13 touches with the toe joint of latch ratchet 2 and forms the anti-clockwise locking; Protection of the child this moment function on; Simultaneously owing to form a unidirectional mechanism here, thus on the taking-up device around ribbon can only the cw revolution, and outwards left-hand revolution is pulled out; Because triggering the hook-type flange bar 26 of pawl 13, children's health care latch ratchet 2 lockings are lived, i.e. protection of the child function on;
Behind the protection of the child function on, ribbon can only be under the drive of wind spring application force cw backrush and can not being pulled out by conter clockwise; When cancelling protection of the child function, then untie the dead bolt of ribbon and being connected of mortise lock, taking-up device 1 continuous backrush ribbon; Children's health care triggers gear 7 left-hand revolution under the drive of children's health care eccentric wheel 5; And then the pin 7-1 that triggers on the gear 7 through children's health care drives children's health care triggering dish 6 left-hand revolution to the right, and children's health care triggering dish 6 overcomes the power that children's health care triggers spring 12, and promptly children's health care triggers spring 12 and is compressed; The hook 37 that makes children's health care trigger pawl 13 is thrown off the dihedral position-limited trough 34 of children's health care triggering dish 6 earlier; Children's health care triggers the hook-type flange bar 26 of pawl 13 also just throws off with the flank of tooth of latch ratchet 2, switches to lock in emergency formula taking-up device naturally, and protection of the child function finishes.
2, locking cancellation function LC: for free tip-up set, eliminate car body induction locking, must let children's health care trigger fluted disc 6 and push down the responsive pawl 3 in the car sense assembly, it can not be contacted with latch ratchet 2, make the angle tilt function conductively-closed of car sense assembly.
The realization of LC function: one section circular arc that 6 bottoms are coiled in the children's health care triggering is pushed down the responsive pawl 3 in the car sense assembly downwards, is specially the sub-position of responsive pawl pin of responsive pawl 3, thereby in the seat switching process; Make responsive pawl 3 overcome the propulsive effort of the responsive ball 11 between responsive lining 9 and responsive seat 10; Lift on responsive pawl 3 is not understood and pin latch ratchet 2, the angle tilt latch functions of car sense assembly temporarily lost efficacy, in the seat switching process; Ribbon still can be pulled out, thereby does not influence the upset of seat.In the post-tensioning ribbon process of having overturn, under the drive of children's health care eccentric wheel 5, children's health care triggers gear 7 clickwise in children's health care lid 8; After rotating to an angle; Under the effect of children's health care retracing spring 12, children's health care triggering dish 6 is also clickwise left thereupon, and the 6 downside circular arcs responsive pawl 3 in the sense assembly of delaying unloading is no longer down coiled in the children's health care triggering; Angle tilt latch functions in the car sense assembly is normally used again, and the car sense function of car sense assembly and angle tilt function all begin again normally.
Three, the assembling that has the Webbing retractor of external protection of the child lockable mechanism
Ribbon on the taking-up device is all pulled out, be contained in external protection of the child lockable mechanism on the enclosing cover 4 then, accomplish a assembling with Webbing retractor of external protection of the child lockable mechanism; Unclamp ribbon then; Ribbon is under the drive of taking-up device wind spring, and the ribbon backrush is in taking-up device, and the responsive pawl 3 of the car sense assembly in the lock in emergency formula safety strap is in free state; The car sense is normal; This moment, taking-up device was a lock in emergency formula taking-up device ELR, and referring to accompanying drawing 8, assembling is the initial installation site of protection of the child lockable mechanism after accomplishing; This initial installation site also is the position that protection of the child function triggers, and this initial position adopts a frock pin 7-1 is installed on the tooth of edge one side that children's health care triggers gear 7 and realizes.
Four, concrete motion flow process
1, referring to Fig. 8-1, the children's health care state
On the seat, place child seat, when needing to start protection of the child function, need the ribbon in the lock in emergency formula safety strap is all pulled out; Ribbon is that left-hand revolution is pulled out, and in the process of pulling out, also drives children's health care eccentric wheel 5 left-hand revolution together; And trigger the traditional method of indicating the pronunciation of a Chinese character power that gear grooved 8-2 in gear 7 and children's health care lid 8 between exists owing to children's health care this moment, makes children's health care eccentric wheel 5 drive children's health cares trigger gear 7 and cover clickwise in 8 at children's health care, coils 6 right side edge until the children's health care triggering that pin 7-1 begins between connect spring pin 32 and the ring body portion; Thereby promote children's health care triggering dish 6 clickwise together, but because the position-limiting action of left triggering dish limiting stopper 19, left triggering dish limiting stopper 19 has propped up the left end of arched arm 28; Make children's health care triggering dish 6 and children's health care trigger gear 7 no longer along with children's health care eccentric wheel 5 continues clickwise; The hook 37 of children's health care triggering pawl 13 was embedded in the children's health care triggering and coiled in the dihedral position-limited trough 34 of 6 lower lefts under the effect that triggers torsion spring 14 this moment, triggered the tooth one way engagement of hook-type flange bar 26 with the latch ratchet 2 of pawl 13 inboards at this position children's health care; Children's health care eccentric wheel 5 is then pulled out the continuation left-hand revolution along with ribbon; All pull out up to ribbon, at this moment, the ribbon on the taking-up device can only be under the effect of wind spring power cw backrush and can not being pulled out by left-hand revolution; At this moment children's health care triggering dish 6 is not pushed down responsive pawl 3; The responsive pawl 3 of car sense assembly is in free state, and responsive pawl pin on the responsive pawl 3 can contact with latch ratchet 2, and the car sense is normal; And children's health care trigger the inboard hook-type flange bar 26 of pawl 13 to rise and with the tooth unidirectional locking of latch ratchet 2, taking-up device belongs to children's health care AL state.
2, referring to accompanying drawing 8-2～8-3, the children's health care disarm state, the LC function triggers
When not needing the protection of the child, discharge ribbon, in the tip-up set process; Let ribbon cw backrush in taking-up device; Under the backrush effect of wind spring power, drive children's health care eccentric wheel 5 clickwises, and children's health care triggering fluted disc 7 covers 8 li left-hand revolutions at children's health care under the drive of children's health care eccentric wheel 5, when rotating to the position of accompanying drawing 8-2 through rotating shaft 15; The pin 7-1 of children's health care triggering dish 7 embeds in the arc position-limited trough 29; Drive children's health care triggering dish 6 left-hand revolution together, children's health care triggers pawl 13 to begin to pressing down and beginning to break away from dihedral position-limited trough 34 under the effect of the downforce that the left-hand revolution to the right at the arched arm 28 of children's health care triggering dish 6 brings, and hook-type flange bar 26 beginnings that make children's health care trigger pawl 13 simultaneously are separated from latch ratchet 2; At this moment; Protection of the child function AL cancellation, simultaneously, the bottom margin that 6 bottom-right quadrants are coiled in the children's health care triggering begins responsive pawl pin on the responsive pawl 3 in the following press contacts car sense assembly; LC locking cancellation function begins effect, the car sense function of car sense assembly and the conductively-closed of angle tilt function;
Under the effect of wind spring power, ribbon continues the cw backrush in taking-up device, and wind spring passes to children's health care eccentric wheel 5 to power through rotating shaft 15; Under the drive of children's health care eccentric wheel 5, children's health care triggers gear 7 and continues turning anticlockwise for 8 li at the children's health care lid, because this moment, pin 7-1 still was embedded in the arc position-limited trough 29; Thereby pin 7-1 promotes children's health care triggering dish 6 turning anticlockwise together; Until the no longer backrush that reaches capacity of the Volume Space of taking-up device, promptly under the position-limiting action of right side triggering dish limiting stopper 18, spring pin 32 final another spring pins 21 on right side triggering dish limiting stopper 18 of children's health care triggering dish 6 are connected to; Make children's health care triggering dish 6 left-hand revolution again; This moment is referring to accompanying drawing 8-3, is positioned at the children's health care triggering and coils the edge that arched arm 28 left bottom of 6 lower left quarters locate on the top and prop up the crown 35 that children's health care triggers pawl 13, keeps children's health care to trigger pawl 13 and presses down; Thereby hook-type flange bar 26 separates with latch ratchet 2; And be arranged in the children's health care triggering and coil responsive pawl pin on the responsive pawl 3 that the quadrant lower edge of 6 right lower quadrants still pushes down car sense assembly, the car sense function of car sense assembly and the conductively-closed of angle tilt function, the LC locking is cancelled function and is reached maxim.
3, referring to accompanying drawing 8-4～accompanying drawing 8-5, the cancellation of LC locking cancellation function
To revert to common lock in emergency formula safety strap then; When the outside left-hand revolution of ribbon is pulled out; Belt reel in the taking-up device drives children's health care eccentric wheel 5 and rotates, and children's health care triggers gear 7 under the drive of children's health care eccentric wheel 5, clickwise in children's health care lid 8; And the pin 7-1 that this moment, children's health care triggered on the gear 7 still is positioned at arc position-limited trough 29; Under the effect of external driving force, children's health care triggering dish 6 triggers clockwise rotating of gear 7 along with children's health care and the cw anti-clockwise rotation that resets together at children's health care retracing spring 12, is that children's health care triggering dish 6 is when rotating to certain position referring to accompanying drawing 8-4 position; The children's health care triggering is coiled 6 right lower quadrant quadrant lower edge and is begun to left movement; Thereby begin to break away from responsive pawl 3, and the arched arm 28 near bottom margins that 6 lower lefts are coiled in children's health care triggering this moment prop up crown 35, keep the hook-type flange bar 26 of children's health care triggering pawl 13 to separate with latch ratchet 2;
Follow-up children's health care triggering dish 6 continues in the process of clickwises, and when children's health care triggering dish 6 rotated to position shown in the accompanying drawing 8-5,6 dextrorotations that offer of children's health care dish went to its crown groove 33 and blocked the crown 35 that children's health care triggers pawl 13 this moment; Children's health care triggering dish is not continuing clickwise; Pin 7-1 continues clickwise, no longer is embedded in the arc position-limited trough 29, and children's health care triggering dish 6 continues clickwise; Responsive pawl 3 is no longer pushed down at edge until the children's health care triggering is coiled under the 6 lower right side quadrants; The angle tilt function of car sense assembly and car sense function are with not conductively-closed, and locking cancellation function LC will cancel, and the taking-up device of this moment is the same with common taking-up device.
Claims (5)
1. Webbing retractor with external protection of the child lockable mechanism; Comprise lock in emergency formula safety strap; Children's health care eccentric wheel, children's health care retracing spring, triggering torsion spring, children's health care trigger gear, it is characterized in that: on the enclosing cover (4) of lock in emergency formula safety strap, be plugged with external protection of the child lockable mechanism; The taking-up device rotating shaft (15) of the last corresponding lock in emergency formula safety strap of the enclosing cover (4) of described lock in emergency formula safety strap locates also to be provided with the axis hole base (17) of evagination, also is provided with on the enclosing cover (4) to trigger pawl slotted eye (22), responsive pawl slotted eye (23) and triggering dish limiting stopper; The proximal edge place of the latch ratchet corresponding to lock in emergency formula safety strap of described triggering pawl slotted eye (22) (2); Described responsive pawl slotted eye (23) is positioned at the outer position, top that covers corresponding responsive pawl (3), and the sub-position of responsive pawl pin of responsive pawl (3) is embedded in this sensitivity pawl slotted eye (23); External protection of the child lockable mechanism comprises that children's health care eccentric wheel (5), children's health care retracing spring (12), children's health care triggering dish (6), children's health care trigger pawl (13), children's health care triggers gear (7), triggering torsion spring (14), children's health care lid (8); Children's health care triggering dish (6) top in the external protection of the child lockable mechanism is made as ring body subordinate side and is made as the position-limited trough board; Ring body portion is provided with the upper limit slotted eye (30) of the arc of conformal; The approximate quadrant of being inverted of position-limited trough board; This quadrant top one side is established spring pin (32), forms upper right position-limited trough (36) between the ring body portion of spring pin (32) and top, and bottom right position-limited trough (31) is established in the quadrant outside of spring pin (32) below; This quadrant top opposite side is provided with arched arm (28); Form arc position-limited trough (29) between arched arm (28) and the round body portion on it, arched arm (28) forms dihedral position-limited trough (34) with its position-limited trough board down, also is provided with the crown groove (33) of little arc bottom described arched arm (28) lower end; Children's health care triggers the lifting-hook plate that pawl (13) adopts the lifting-hook shape; The top of lifting-hook plate is riser; Riser one sidewall is provided with torsion spring position-limited trough (25), and the riser top is provided with level to axis hole (24), and lifting-hook plate bottom is hook (37); Be provided with the hook-type flange bar (26) of the horizontal arrangement of conformal in one side, nearly most advanced and sophisticated place, the bottom of hook (37), the outer end points of hook (37) is crown (35); Children's health care triggers gear (7) tooth portion one side and is provided with pin (7-1); Children's health care lid (8), its inboard are provided with the gear grooved (8-2) that nested children's health care triggers gear (7) usefulness; For to be bent to form spring arm (14-2) respectively downwards in opposite directions at the two ends of spring coil (14-1), two spring arms (14-2) bottom is provided with the snap hook (14-3) of equidirectional bending to trigger torsion spring (14), leaves the gap between two snap hooks (14-3); The ring body portion of children's health care triggering dish (6) is socketed on the axis hole base (17); Taking-up device rotating shaft (15) and children's health care that the built-in children's health care eccentric wheel of axis hole base (17) (5), eccentric shaft (5-1) two ends of children's health care eccentric wheel (5) are coupling respectively in the lock in emergency formula safety strap trigger gear (7); Hook-type flange bar (26) one ends that children's health care triggers pawl (13) embed in the triggering pawl slotted eye (22), and the level that children's health care triggers pawl (13) is coupling in the edge of the enclosing cover (4) that triggers pawl slotted eye (22) top to axis hole (24); The level that the spring coil (14-1) on triggering torsion spring (14) top is fixed in the lifting-hook plate is on axis hole (24) outer wall; The snap hook (14-3) that triggers torsion spring (14) bottom triggers corresponding to children's health care on the travel path of the torsion spring position-limited trough (25) on the pawl (13), and children's health care lid (8) is coated on children's health care and triggers the outer rear flank that gear (7), children's health care trigger pawl (13) and trigger torsion spring (14) and be fixed on the enclosing cover (4); The upper limit slotted eye (30) of the arched arm (28) of the position-limited trough board of children's health care triggering dish (6), spring pin (32), ring body portion is gone up cooresponding triggering dish limiting stopper with enclosing cover (4) respectively and is matched corresponding; Described triggering dish limiting stopper comprises triggering dish limiting stopper (20), left triggering dish limiting stopper (19), right triggering dish limiting stopper (18), and wherein, last triggering dish limiting stopper (20) embeds in the upper limit slotted eye (30) in the ring body portion; Left side triggering dish limiting stopper (19) is positioned on the concentric circles with arched arm (28); Right triggering dish limiting stopper (18) is gone up corresponding spring pin (32) and is located to be provided with another spring pin (21); Spring pin (32) is positioned on the concentric circles with another spring pin (21); And be socketed with children's health care retracing spring (12) between spring pin (32) and another spring pin (21), right triggering dish limiting stopper (18) also is positioned on the concentric circles with bottom right position-limited trough (31).
2. a kind of Webbing retractor with external protection of the child lockable mechanism as claimed in claim 1, it is characterized in that: the bottom margin of position-limited trough board is provided with flange.
3. a kind of Webbing retractor with external protection of the child lockable mechanism as claimed in claim 1 is characterized in that: children's health care lid (8) adopts buckle to be connected with enclosing cover (4) and fixes.
4. a kind of Webbing retractor with external protection of the child lockable mechanism as claimed in claim 1 is characterized in that: crown (35) lateral surface that children's health care triggers the hook of pawl (13) is provided with chimb (27).
5. a kind of Webbing retractor with external protection of the child lockable mechanism as claimed in claim 1 is characterized in that: the corresponding children's health care of described crown groove (33) triggers the crown (35) of pawl (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105239203A CN101973243B (en) | 2010-10-28 | 2010-10-28 | Safety belt retractor with external children protection latch mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105239203A CN101973243B (en) | 2010-10-28 | 2010-10-28 | Safety belt retractor with external children protection latch mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101973243A CN101973243A (en) | 2011-02-16 |
| CN101973243B true CN101973243B (en) | 2012-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105239203A Active CN101973243B (en) | 2010-10-28 | 2010-10-28 | Safety belt retractor with external children protection latch mechanism |
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| Country | Link |
|---|---|
| CN (1) | CN101973243B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6258728B2 (en) * | 2014-03-12 | 2018-01-10 | タカタ株式会社 | Energy absorbing device, seat belt retractor and seat belt device |
| CN112146189B (en) * | 2020-08-06 | 2021-12-03 | 广东美的制冷设备有限公司 | Dehumidifier |
| CN113928263B (en) * | 2021-11-24 | 2022-05-31 | 江苏新达能汽车部件有限公司 | Safety belt winder |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201332749Y (en) * | 2009-01-07 | 2009-10-28 | 上海科工机电设备成套有限公司 | Safety buckle of children seat |
| CN101574936A (en) * | 2008-05-07 | 2009-11-11 | 高田株式会社 | Child seat |
| CN201856731U (en) * | 2010-10-28 | 2011-06-08 | 延锋百利得（上海）汽车安全系统有限公司 | Safety belt retractor of attached child protection locking mechanism capable of freely switching locking state |
-
2010
- 2010-10-28 CN CN2010105239203A patent/CN101973243B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101574936A (en) * | 2008-05-07 | 2009-11-11 | 高田株式会社 | Child seat |
| CN201332749Y (en) * | 2009-01-07 | 2009-10-28 | 上海科工机电设备成套有限公司 | Safety buckle of children seat |
| CN201856731U (en) * | 2010-10-28 | 2011-06-08 | 延锋百利得（上海）汽车安全系统有限公司 | Safety belt retractor of attached child protection locking mechanism capable of freely switching locking state |
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| Publication number | Publication date |
|---|---|
| CN101973243A (en) | 2011-02-16 |
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Effective date of registration: 20191224 Address after: 201315 4th floor, building 11, No. 957, Kangqiao Road, Pudong New Area, Shanghai Co-patentee after: Shanghai Lingang Junsheng automobile safety system Co., Ltd Patentee after: Yanfeng Automobile Intelligent Safety System Co., Ltd. Address before: 201315 No. 426 Pu Pu Road, Cambridge Industrial District, Shanghai, China Patentee before: Yanfeng Bailide (Shanghai) Automobile Safety System Co., Ltd. |
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