CN100372710C - Pretension device of constrictor for automobile safety belt - Google Patents
Pretension device of constrictor for automobile safety belt Download PDFInfo
- Publication number
- CN100372710C CN100372710C CNB2005100886742A CN200510088674A CN100372710C CN 100372710 C CN100372710 C CN 100372710C CN B2005100886742 A CNB2005100886742 A CN B2005100886742A CN 200510088674 A CN200510088674 A CN 200510088674A CN 100372710 C CN100372710 C CN 100372710C
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- China
- Prior art keywords
- safety belt
- miniature gears
- roller
- constrictor
- adapter
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- 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
- B60R22/46—Reels with means to tension the belt in an emergency by forced winding up
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- 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
- B60R22/18—Anchoring devices
- B60R22/195—Anchoring devices with means to tension the belt in an emergency, e.g. means of the through-anchor or splitted reel type
- B60R22/1952—Transmission of tensioning power by cable; Return motion locking means therefor
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- 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
Abstract
The invention discloses a pre-tensioner of a constrictor for an automobile safety belt. According to the invention, the pre-tensioner comprises a housing in which a ball guide member is provided, a bonder mounted in the housing and rotated by the ball, a pinion engaged with the bonder and rotated together with the bonder, and a roller arranged between a cam portion combined with the pinion and a safety belt winder, used for combining the pinion with the safety belt winder. Because a pressure of an exploded gas is transferred from an explosion member to the bonder, a plurality of balls are generally contacted with the bonder stably, and the bonder is continuously engaged with the pinion, the exploded gas pressure is transferred to another component, the component is held to be stably contacted with the other component, thereby when an automobile is came into collision with some objects, the explosion member is started based on an electric signal of an automobile collision detecting sensor so as to prevent explosion energy loss. Accordingly, the explosion member is converted into a rotation function and transferred to the safety belt winder. Then, the safety belt winder constricts the automobile safety belt rapidly and accurately, so that bodies of passengers are firmly fixed on seats.
Description
Technical field
The present invention relates to a kind of preloader of constrictor for automobile safety belt; relate more specifically to a kind of preloader of constrictor for automobile safety belt; it can prevent to be used to discharge the operation mistake of the member of the air pressure that produces when the blast part explosion time that be installed to the self-propelled vehicle constrictor; thereby the explosive force of the part that will explode; be air pressure; under the situation of not loss, be delivered to safety belt reel, thereby safety strap is shunk exactly, to protect the occupant of self-propelled vehicle safely.
Background technology
Usually, be contained in safety strap on the automobile seat when getting into an accident by chaufeur or passenger are fixedly secured on automobile seat, play the effect that the possibility that will the person be damaged is reduced to minimum level.
When vehicle collision, this safety strap is recoiled by the preloader of safety belt retractor, so that chaufeur or passenger is fixing tightly on the seat.That is, when vehicle and other vehicle or some object collision, the blast part that is pre-installed on the constrictor for automobile safety belt moves with the generation detonating gas, the pressure of detonating gas, and promptly explosive force promotes a plurality of balls.Correspondingly, these balls make the safety belt reel backward rotation, so that safety strap is reeled again.
As mentioned above, because the preloader of safety belt retractor is recoiled safety strap apace when vehicle collision, so that chaufeur or passenger is fixing tightly on the seat, therefore the chaufeur that is caused by the inertia force of motor vehicles power of motion or the distance of passenger moving are reduced to minimum level, and this will reduce automobile driver or the injured possibility of passenger.
But problem wherein is, the explosive force that produces can not be with the action of blast part the time according to the preloader of the constrictor for automobile safety belt of conventional art is delivered on the safety belt reel exactly.
Fig. 7 A and 7B schematically show the mode of operation according to the preloader of the constrictor for automobile safety belt of conventional art.
Referring to Fig. 7 A, in preloader according to the constrictor for automobile safety belt of conventional art, at first, when the tooth 11 of the drive wheel 10 that is connected to safety belt reel (not shown) meshes with ball 12, shown in long and short dash line, will cause the pressure of the detonating gas that applies along direction shown in the arrow from the blast part not to be delivered to exactly on the drive wheel 10.In the case, the operation that when vehicle collision, may not carry out the safety belt reel backward rotation and recoil safety strap.
In other words, because under the effect of the explosive force that when vehicle collision, produces by the blast part, and the ball 12 of tooth 11 concerted actions of drive wheel 10 is received between the tooth 11 immediately, therefore causes drive wheel 10 backward rotation, thereby makes safety belt reel (not shown) backward rotation with the Contractible safety band.But, in the preloader with safety belt retractor of structure shown in Fig. 7 A, when traffic accident takes place, the situation that ball 12 engages with the tooth 11 of drive wheel 10 singularly can take place, thereby reduced the explosive force of blast part.Therefore, produced the problem that ball 12 almost can not make drive wheel 10 rotate quickly and accurately.
In addition, in preloader according to the constrictor for automobile safety belt of conventional art structure shown in Fig. 7 B, the miniature gears of in gear ring 13, placing 14 not with the state of the internal gearing of gear ring 13 under, the explosive force that ball 12 produces when utilizing vehicle collision promotes the external tooth of gear ring 13 downwards, so that gear ring 13 rotates.Then, the internal gearing of miniature gears 14 and gear ring 13, thereby make with miniature gears 14 bonded assembly safety belt reel (not shown) backward rotation with the Contractible safety band.
But, in preloader with constrictor for automobile safety belt of structure shown in Fig. 7 B, because gear ring 13 is tooth and miniature gears 14 not under the state of contact within it when vehicle collision, rotate by ball 12, thereby with miniature gears 14 ingears, so gear ring 13 can not mesh with miniature gears 14 exactly.Therefore the explosive force loss of part may cause exploding.Like this, another problem of existence is because the loss of explosive force, safety belt reel can not be when traffic accident takes place the Contractible safety band.
Summary of the invention
For addressing the above problem the present invention has been proposed.Therefore an object of the present invention is to provide a kind of preloader of constrictor for automobile safety belt, wherein ball spare continues and the adapter engagement, to transmit explosive force from the blast part, simultaneously adapter continues exactly and pinion, this can prevent the loss of explosive force, and guarantees the tight engagement between the blast power transmission part, thereby when vehicle collision, safety belt reel can be quickly and accurately the safety strap of up-coiler motor-car again, be securely fixed on the seat with health the passenger.
Another object of the present invention provides a kind of preloader of constrictor for automobile safety belt, wherein miniature gears separated with safety belt reel in the usual time, thereby miniature gears and safety belt reel are worked respectively, and only when self-propelled vehicle bumps or clash into the rear portion of another self-propelled vehicle, miniature gears and safety belt reel combine, thereby safety belt reel can utilize the explosive force safety strap of reeling again quickly and accurately of blast part, is securely fixed in the health with the passenger on the seat of self-propelled vehicle.
In order to reach the purpose of the invention described above, a kind of preloader of constrictor for automobile safety belt is provided, it comprises: shell, described shell comprises that a side has the holding portion of opening, the cylindric rotation pivot shaft that projects upwards from the bottom surface of holding portion, be arranged on the edge of holding portion and bend to the ball guide of arcuation, be mounted in it the blast part of the opening part of the ball guide that is arranged with movable part and a plurality of balls continuously, and the locked groove that on the outside face of holding portion, is formed on rotation pivot shaft edge; Adapter, described adapter have internal tooth that forms on the circumference within it and the locking projection that forms on the required part of its excircle, and adapter is contained on the holding portion rotationally, and locking projection contacts with the ball that places ball guide end usually simultaneously; Miniature gears, described miniature gears the one end have be formed on its excircle, with the external tooth of described internal gearing, described miniature gears is connected to the rotation pivot shaft, thereby external tooth usually and internal gearing, and miniature gears a plurality of inclined surfaces of having the cam portion that forms at its other end and radially bending from the axis curl of miniature gears; The roller folder, described roller anchor clamps have the cylindric insertion portion that forms at the one end, and have uncinus that forms at insertion portion one end and the mounting portion that forms at the insertion portion other end, the mounting portion has with cooresponding several rotations of inclined surface to be supported, uncinus is locked in respectively in each locked groove, thereby each rotation is supported corresponding to each inclined surface; And a plurality of rollers, described roller is contained in corresponding rotation rotationally and supports, and between the inner periphery of inclined surface and safety belt reel, move, be used at miniature gears because of the explosive force of blast part when rotating, miniature gears and safety belt reel are combined, be delivered to safety belt reel with convergent force with miniature gears.
Adapter has a plurality of holding tanks that are formed on continuously on its excircle, so that make each holding tank hold ball.
The rotation of roller folder is supported and is comprised support tip and roller pivot shaft, and wherein support tip is to form by the inside of cutting the mounting portion, and outwards is out of shape when roller moves, and the roller pivot shaft is integrally formed in the end of each support tip respectively.
The ratio of adapter and the number of teeth of miniature gears preferably 2: 1～3: 1.
On the excircle of each roller, be formed with a plurality of non-slip process highlightedly.
In preloader according to aforesaid constrictor for automobile safety belt of the present invention, because adapter contacts with ball is stable usually, be used for power-transfer clutch usually with pinion in the explosion energy of the blast part that produces during the transmission collision of motor-driven vehicles, therefore, when the explosive force of collision of motor-driven vehicles after-explosion spare makes the ball motion, will rotate with the stable adapter that contacts of ball.
Then, the rotation of adapter makes usually and the rotation of the miniature gears of the internal gearing of adapter, thereby the cam portion and the roller between the safety belt reel that are arranged at miniature gears will make miniature gears and safety belt reel get in touch.When miniature gears is related with safety belt reel, the explosive force that is produced by collision of motor-driven vehicles will be delivered on the safety belt reel, so that the safety belt reel contrarotation.Safety belt reel is pressed the said process contrarotation, can make automobile safety belt shrink required length.
At this moment, because adapter usually contact and maintenance and pinion always with ball is stable, so rotate under the miniature gears situation that can not have at the explosive force of the blast part that makes the safety belt reel contrarotation to lose.Thereby when collision of motor-driven vehicles, the explosive force of blast part will be delivered to safety belt reel by miniature gears under the situation that explosive force not have to lose, therefore in collision of motor-driven vehicles, safety belt reel can the fast contraction safety strap, so that passenger's health is fixing on the seat.
Because each roller separated with the inner periphery of safety belt reel in the usual time, therefore, do not have at self-propelled vehicle under the state of collision, safety belt reel will be worked under the situation that does not have miniature gears to hinder reposefully.
Description of drawings
By describing preferred implementation of the present invention with reference to the accompanying drawings in detail, will be expressly understood above-mentioned purpose of the present invention, further feature and advantage more, in the accompanying drawings:
Fig. 1 is the part decomposition diagram of expression preloader of constrictor for automobile safety belt according to the present invention;
Fig. 2 is the transparent view of the preloader of expression constrictor for automobile safety belt of the present invention shown in Figure 1, and wherein the parts of part preloader are bonded to each other;
Fig. 3 is the cutaway view of the preloader of the constrictor for automobile safety belt according to the present invention along Fig. 2 center line A-A intercepting;
Fig. 4 is the scheme drawing of the preloader of expression constrictor for automobile safety belt of the present invention shown in Figure 1, and wherein the uncinus of preloader is locked in the locked groove;
Fig. 5 A is the view of job order of the preloader of expression safety belt retractor of the present invention shown in Figure 1 to 5C;
Fig. 6 A and 6B are the part enlarged drawings that expression is worked between the miniature gears of the preloader of safety belt retractor and the roller according to the present invention;
Fig. 7 A and 7B are the scheme drawing of expression according to the preloader work of the constrictor for automobile safety belt of conventional art.
The specific embodiment
Describe the preloader of constrictor for automobile safety belt according to the preferred embodiment of the present invention below with reference to the accompanying drawings in detail.
Fig. 1 and 2 represents the preloader according to constrictor for automobile safety belt of the present invention.
Referring to Fig. 1 and 2, the preloader of constrictor for automobile safety belt comprises the shell 20 that blast part 34 and ball 40 wherein are housed according to the preferred embodiment of the present invention, usually with the ball 40 stable adapters 50 that contact, always with adapter 50 ingear miniature gearss 60, the safety belt reel 90 of safety strap is used to reel, place a plurality of rollers 80 between miniature gears 60 and the safety belt reel 90, and the roller folder 70 that is used to support the roller 80 of rotation.
At first, shell 20 comprises that a side has the holding portion 20 and the cylindric rotation pivot shaft 24 of opening, and rotation pivot shaft 24 projects upwards from the bottom surface of holding portion 22.Ball guide 30 places the edge of holding portion 22, and bends to arc, and the part 34 that explodes simultaneously is contained in the opening part of ball guide 30.In addition, movable part 32 is contained in blast part 34 inboards, moves under the gas pressure that blast part 34 explosion times produce.A plurality of balls 40 arrange continuously that near movable part 32 ball 40 is by movable part 32 motions.
Fig. 3 is the cutaway view of the preloader of expression constrictor for automobile safety belt according to the present invention along Fig. 2 center line A-A intercepting.Referring to Fig. 1-3, inclined surface 64 curls are formed on the cam portion, extend to the edge from the center of cam portion 66.Therefore, when roller 80 when 66 core moves to the edge along inclined surface 64 from cam portion, roller 80 leaves the core of miniature gears 60.This miniature gears 60 is contained on the rotation pivot shaft 24, thereby the external tooth of miniature gears 60 62 internal tooths 52 common and adapter 50 mesh.
Simultaneously, the ratio of number of teeth of adapter 50 and miniature gears 60 is 2: 1-3: 1.The reason of the big ratio of number of teeth of adapter 50 and miniature gears 60 is that although adapter 50 rotates with relatively low speed, miniature gears 60 is with higher relatively speed rotation.For example, when adapter 50 turned over half-turn, miniature gears 60 turned over a circle.Because preloader has aforesaid structure, so miniature gears 60 can be realized the contrarotation of high range.Therefore, miniature gears 60 stably guarantees contrarotation.
Fig. 4 is that the uncinus 74 of expression roller folder 70 is connected to the scheme drawing on the rotation pivot shaft 24.
Referring to Fig. 4, be formed with locked groove 26 at the other end edge of the rotation pivot shaft 24 of shell, as referring to figs. 1 to 3 description.At this moment, locked groove 26 is formed on the other end edge of the rotation pivot shaft 24 of shell 20.When the insertion portion 72 of roller folder 70 inserted rotation pivot shaft 24, the uncinus 74 of roller folder 70 was locked in respectively in each locked groove 26.Therefore, when separating when uncinus 74 damages or with locked groove 26, insertion portion 72 can rotation in rotation pivot shaft 24.
Referring to Fig. 1 to 3, form rotation and support 76 once more, make roller 80 in preset range, to move.Promptly, the rotation of roller folder 70 is supported 76 and is comprised support tip 78A and roller pivot shaft 78B, wherein support tip 78A forms by the inside of cutting mounting portion 78, and outwards is out of shape when roller 80 motions, and roller pivot shaft 78B is integrally formed in the end of each support tip 78A respectively.Roller pivot shaft 78B supports 76 with rotation and combines, and is not limited to this roller pivot shaft but persons skilled in the art it should be understood that the present invention, can also comprise independent S. A..Respectively when each inclined surface 64 outwards moves, support tip 78A will deform, so that each roller 80 moves along each inclined surface 64 up to roller 80.
Then, the roller 80 that is contained in rotationally respectively on each roller pivot shaft 78B is delivered to safety belt reel 90 with rotational force from miniature gears 60.On the outer peripheral face of each roller 80, be formed with a plurality of non-slip process 82.Non-slip process 82 can prevent that each roller 80 is inserted in owing to skidding between the inner peripheral surface of each inclined surface 64 and safety belt reel 90.
Simultaneously, the holding portion 22 that holds the shell of adapter 50, miniature gears 60, roller folder 70 and roller 80 seals by adapter lid (not shown) and casing cover (not shown).Safety belt reel 90 is connected to the return spring of its end (not shown), and is connected to the ratchet (not shown) at this other end, and safety belt reel 90 is by wheel cap (not shown) sealing.The main body of safety belt reel 90 is contained in the framework of constrictor (not shown) rotationally.
Below, describe the work of the preloader of constrictor for automobile safety belt according to the preferred embodiment of the present invention with reference to the accompanying drawings in detail.
Fig. 5 A has represented the work of the preloader of Fig. 1 in order to 5C.
Shown in Fig. 5 A, do not bump or clash into from behind under the state of other vehicles and some object at self-propelled vehicle, ball 40 places initial position, because almost not motion of movable part.At this moment, roller 80 places the bottom of each inclined surface 64 of the cam portion 66 of miniature gears 60 respectively, promptly near the part at cam portion 66 centers.
Fig. 6 A and 6B represent the miniature gears 60 of preloader and the mode of operation of roller 80.
Shown in the solid line among Fig. 6 A, roller 80 places the position near miniature gears 60 cores respectively.Therefore, roller 80 touch-safe tape wrapping device 90 not still.Thus, safety belt reel 90 can normal operation.At this moment, the uncinus 74 of roller folder 70 inserts respectively in each locked groove 26 of shell, to be fixed on the shell 20, as shown in Figure 4.So roller folder 70 combines with shell 20.
Under this state, when self-propelled vehicle collided each other, blast part 34 will explode according to the electric signal of bump detecting sensor (not shown), to produce air pressure.Air pressure makes movable part 32 40 move along ball guide 30 towards ball, shown in Fig. 5 B.This causes ball 40 to be pushed.At this moment, the ball 40 that moves by movable part 32 will promote the locking projection 54 of adapter 50, so that adapter 50 rotations.
When adapter 50 during through these processes rotations, also rotate with the internal tooth 52 ingear miniature gearss 60 of adapter 50, thus cam portion 66 clickwises of miniature gears 60.Therefore, shown in long and short dash line among Fig. 6 B, each roller 80 that its rotation is stoped by roller folder 70 move to top from the bottom of inclined surface 64 separately.In fact, each roller 80 and motionless, but the contact point of each roller 80 and inclined surface 64 changes along with the rotation of cam portion 66.
These processes cause each roller 80 to move to top (away from the core of cam portion 66) from the bottom of inclined surface 64 separately.Like this, each roller 80 just is positioned between the excircle of the outside of each inclined surface 64 and safety belt reel 90, thereby miniature gears 60 combines with safety belt reel 90.
Shown in Fig. 5 B, cause and 60 rotations of its ingear miniature gears by the rotation of the kinetic adapter 50 of ball 40, thereby make the position change of cam portion 66.At this moment, each roller 80 is positioned between the excircle of the outside of each inclined surface 64 and safety belt reel 90, thereby miniature gears 60 combines with safety belt reel 90.This will make the turning effort of miniature gears 60 be delivered on the safety belt reel 90.
As long as the position of each roller 80 is owing to the rotation of miniature gears changes, then each support tip 78A will outwards be out of shape, to allow each roller 80 motion.
At this moment, because each roller 80 is formed with non-slip process 82 on its circumference, even therefore each roller 80 is placed in separately between the inclined surface 64 and safety belt reel 90, each roller 80 can not separate with cam portion 66.
When miniature gears 60 combines by roller 80 and safety belt reel 90, miniature gears 60, roller 80 and safety belt reel 90 will rotate together.When the uncinus 74 in being locked in locked groove 26 as shown in Figure 4 damaged, roller folder 70 and each roller 80 will be with miniature gears 60 and safety belt reel 90 rotations.
Therefore, the coiling again of the safety strap of carrying out by aforesaid operations will continue to carry out, till the block (not shown) that the motion of locking projection 54 is formed on holding portion 22 1 sides stops.Then, safety strap will be lockable.
Because explosive force is that the while forms down with miniature gears 60 accurate ingear states at adapter 50 stable contact balls 40, the air pressure of the part 34 that therefore explodes will not have to convert kinetic energy under the situation of degradation of energy to, be delivered to safety belt reel 90 exactly.Therefore, safety belt reel 90 can be reeled again and be tightened safety strap securely.
In preloader according to constrictor for automobile safety belt of the present invention, as mentioned above, because transmitting the ball of the detonation gas pressure of blast part contacts with adapter is stable each other usually, simultaneously adapter always exactly with pinion, therefore all parts stably are connected to each other, and do not have the explosion energy loss, thereby explosion energy can convert rotation function to.Explosion energy causes safety belt reel Contractible safety band fast and accurately, is securely fixed on the automobile seat with the health with the passenger.
In addition, in preloader, because each roller is at touch-safe tape wrapping device not of usual time, so safety belt reel can be worked reposefully according to constrictor for automobile safety belt of the present invention.Therefore, as long as collision of motor-driven vehicles and vehicle impact and some object, then miniature gears and safety belt reel will combine togather by roller, thereby the explosion energy of the part that will explode changes into rotation function, so that the safety belt reel contrarotation.
On the other hand, when the ratio of number of teeth of adapter and miniature gears increased, even adapter rotates with little rotating speed, miniature gears also can the at high speed rotation.Therefore, only can obtain the contrarotation of high range by little power.Therefore safety belt reel can oppositely and stably rotate.
Though represent especially and described the present invention with reference to particular embodiment of the present invention, but one of ordinary skill in the art is understandable that, under the situation that does not depart from the spirit and scope of the invention that claims limit, can make different changes on form and the details to the present invention.
Claims (5)
1. the preloader of a constrictor for automobile safety belt comprises:
Shell (20), described shell (20) comprises that a side has the holding portion of opening (22), the cylindric rotation pivot shaft (24) that projects upwards from the bottom surface of holding portion (22), be arranged on the edge of holding portion (22) and bend to the ball guide (30) of arcuation, be mounted in it the blast part (34) of the opening part of the ball guide (30) that is arranged with movable part (32) and a plurality of ball (40) continuously, and the locked groove (26) that on the outside face of holding portion (22), is formed on rotation pivot shaft (24) edge;
Adapter (50), described adapter (50) has internal tooth (52) that forms on the circumference within it and the locking projection (54) that forms on its excircle, and adapter (50) is contained on the holding portion (22) rotationally, and terminal with placing ball guide (30) the usually ball (40) of locking projection (54) contacts simultaneously;
Miniature gears (60), described miniature gears (60) the one end have be formed on its excircle, with described internal tooth (52) ingear external tooth (62), miniature gears (60) is connected to rotation pivot shaft (24), thereby external tooth (62) usually with internal tooth (52) engagement, and described miniature gears (60) has at the cam portion (66) of the other end formation of miniature gears (60) and a plurality of inclined surfaces (64) of radially bending from the axis curl of miniature gears (60);
Roller folder (70), described roller folder (70) has the cylindric insertion portion (72) that forms at the one end, and have uncinus (74) that forms at insertion portion (72) one ends and the mounting portion (78) that forms at insertion portion (72) other end, mounting portion (78) has with cooresponding several rotations of the quantity of inclined surface (64) supports (76), uncinus (74) is locked in respectively in each locked groove (26), thereby each rotation is supported (76) corresponding to each inclined surface (64); And
A plurality of rollers (80), described roller (80) is contained in corresponding rotation rotationally and supports on (76), and between the inner periphery of inclined surface (64) and safety belt reel (90), move, be used for when miniature gears (60) rotates under the explosive force effect of blast part (34), miniature gears (60) and safety belt reel (90) are combined, be delivered to safety belt reel (90) with turning effort with miniature gears (60).
2. the preloader of constrictor for automobile safety belt as claimed in claim 1, wherein said adapter (50) has a plurality of holding tanks (56) that are formed on continuously on its excircle, so that make each holding tank (56) hold ball (40).
3. the preloader of constrictor for automobile safety belt as claimed in claim 1, the rotation of wherein said roller folder (70) is supported (76) and is comprised support tip (78A) and roller pivot shaft (78B), support tip (78A) be by the cutting mounting portion (78) inside form and when roller (80) moves, outwards be out of shape, roller pivot shaft (78B) is integrally formed in the end of each support tip (78A) respectively.
4. as the preloader of each the described constrictor for automobile safety belt in the claim 1 to 3, wherein adapter (50) is 2: 1～3: 1 with the ratio of the number of teeth of miniature gears (60).
5. the preloader of constrictor for automobile safety belt as claimed in claim 4 wherein is formed with a plurality of non-slip process (82) on the excircle of each roller (80) highlightedly.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020040060342A KR100620620B1 (en) | 2004-07-30 | 2004-07-30 | Pretensioner of retractor for a seat belt |
| KR1020040060342 | 2004-07-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1736774A CN1736774A (en) | 2006-02-22 |
| CN100372710C true CN100372710C (en) | 2008-03-05 |
Family
ID=36079796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100886742A Active CN100372710C (en) | 2004-07-30 | 2005-08-01 | Pretension device of constrictor for automobile safety belt |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100620620B1 (en) |
| CN (1) | CN100372710C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8770506B2 (en) | 2010-07-06 | 2014-07-08 | Autoliv Asp, Inc. | High seal retractor pretensioner piston |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100801603B1 (en) * | 2007-05-16 | 2008-02-11 | 델파이코리아 주식회사 | Rotate structure of seat belt retractor |
| JP4806693B2 (en) * | 2008-04-18 | 2011-11-02 | 本田技研工業株式会社 | Vehicle seat belt device |
| KR20140038218A (en) | 2012-09-20 | 2014-03-28 | 현대자동차주식회사 | Pretensioner of seat belt for vehicle |
| WO2014087721A1 (en) * | 2012-12-04 | 2014-06-12 | 株式会社東海理化電機製作所 | Webbing take-up device |
| CN103832388B (en) * | 2014-02-27 | 2016-04-27 | 上海和励信息科技有限公司 | For driver element holding firmware and the prefastening safety device of prefastening safety device |
| KR101569473B1 (en) * | 2014-04-29 | 2015-11-27 | 주식회사 우신세이프티시스템 | Pre-Tensioner Having Break-Connection Type Rack Gear |
| KR101683485B1 (en) * | 2015-03-25 | 2016-12-07 | 주식회사 우신세이프티시스템 | Pre-Tensioner Having Rotating Surpporting member |
| CN115107693B (en) * | 2022-06-30 | 2023-06-02 | 长沙理工大学 | Safety equipment for vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3943295B2 (en) | 1999-08-25 | 2007-07-11 | タカタ株式会社 | Pretensioner and seat belt device having the same |
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2004
- 2004-07-30 KR KR1020040060342A patent/KR100620620B1/en active IP Right Grant
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- 2005-08-01 CN CNB2005100886742A patent/CN100372710C/en active Active
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| US5346152A (en) * | 1992-04-02 | 1994-09-13 | Trw Repa Gmbh | Belt pretensioner for vehicle safety belt systems |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8770506B2 (en) | 2010-07-06 | 2014-07-08 | Autoliv Asp, Inc. | High seal retractor pretensioner piston |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100620620B1 (en) | 2006-09-19 |
| KR20060011480A (en) | 2006-02-03 |
| CN1736774A (en) | 2006-02-22 |
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Free format text: FORMER OWNER: LI GENGXIANG Effective date: 20150210 Owner name: YUXIN SAFETY SYSTEM CO., LTD. Free format text: FORMER OWNER: JIANG LIANTAI Effective date: 20150210 |
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