CN2813378Y - Belt retractor and safety belt including the same retractor - Google Patents
Belt retractor and safety belt including the same retractor Download PDFInfo
- Publication number
- CN2813378Y CN2813378Y CN 200520103134 CN200520103134U CN2813378Y CN 2813378 Y CN2813378 Y CN 2813378Y CN 200520103134 CN200520103134 CN 200520103134 CN 200520103134 U CN200520103134 U CN 200520103134U CN 2813378 Y CN2813378 Y CN 2813378Y
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- China
- Prior art keywords
- taking
- elastic element
- ratchet
- outer box
- fixed
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- Expired - Lifetime
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Abstract
The utility model relates to a belt retractor which comprises a ball sensitive mechanism 1, a ratchet wheel 2 and an outer case 3 of the belt retractor. The belt retractor also comprises an electric control mechanism 4 which comprises a driving mechanism 41, a locking detent 42, a shaft 43 and an elastic element 44, wherein the driving mechanism 41 and elastic element 44 are respectively positioned on one end of the locking detent 42 which is far from the ratchet wheel 2, and are fixed on the outer case 3 of the belt retractor. The locking detent 42 is fixed on the outer side of the ratchet wheel 2 by the shaft 43 and can revolve around the shaft 43. The shaft 43 is fixed on the outer case 3 of the belt retractor. One end of the elastic element 44 is fixed on one end of the locking detent 42 which is far from the ratchet wheel 2, and the other end of the elastic element 44 is fixed on the outer case 3 of the belt retractor. The utility model provides a belt retractor which has emergency locking function, automatic locking function, simple structure and convenient operation.
Description
Technical field
The utility model is about a kind of taking-up device and the safety strap that comprises this taking-up device, and more specifically, the utility model is about a kind of lock in emergency pattern and the taking-up device of lockdown mode and safety strap that comprises this taking-up device automatically of comprising.
Background technology
Car belt generally includes taking-up device, ribbon and bracelet.During buckle in locking, ribbon is carried out protection to the occupant on the seat.When automobile bumped, the initial velocity of automobile was being die-offed in a flash to zero, and consequent huge force of inertia will act directly on occupant's health, thereby caused the serious secondary collision of occupant and automotive upholstery generation even with occupant's seat of dishing out.And safety strap can be when danger takes place, and auto lock ribbon under the huge deceleration/decel of automobile is firmly fixed the occupant on the seat, avoids the generation of secondary collision, thereby reaches protection occupant's purpose.And for child passenger, in riding process, might larkishly ribbon be pulled out taking-up device to play, thereby stretch out the whole length available of safety strap, make safety strap be in disarmed state or act on weakened state.In case collision case appears in automobile, huge force of inertia will cause the injury to children to children's seat of dishing out.
CN1493482A discloses a kind of Webbing retractor that comprises automatic locking (ALR) pattern and lock in emergency (ELR) pattern.When automatic lockdown mode occurred, the lock in emergency pattern was terminated, the ribbon that the taking-up device automatic drawing back is pulled out by child, and keep this pattern, avoid safety strap to be pulled out once again and cause danger.This Webbing retractor comprises reel, eccentric disk, face cam, ratchet, stops pawl, wherein said face cam comprises engagement with cams and detaching cam, described engagement with cams is configured to engage the described blocking position that stops pawl, and the detaching cam of described face cam is configured to engage the described release position that stops pawl.But above-mentioned Webbing retractor need just can be guaranteed the effect of automatic lockdown mode when belt length mates with relative accurate transmitting ratio or reduction ratio.
CN1530268A also discloses a kind of Webbing retractor that comprises automatic lockdown mode and lock in emergency pattern.When automatic lockdown mode occurred, the lock in emergency pattern was terminated, the ribbon that the taking-up device automatic drawing back is pulled out by child, and keep this pattern, avoid safety strap to be pulled out once again and cause danger.This Webbing retractor is realized lock in emergency pattern and the switching between the lockdown mode automatically by a plurality of cams and a plurality of wheeling disk structure, and structure is very complicated.And only when safety strap is all extracted out, the automatic lockdown mode of above-mentioned Webbing retractor just works, rather than judges that initiatively the occupant is adult or children, can not make things convenient for and controllably start automatic lockdown mode.
The utility model content
The purpose of this utility model is to overcome Webbing retractor complex structure in the prior art, can not make things convenient for the shortcoming that controllably starts automatic lockdown mode, provide a kind of simple in structure, can make things convenient for Webbing retractor that controllably starts automatic lockdown mode and the safety strap that comprises this taking-up device.
The taking-up device that the utility model provides comprises the responsive mechanism 1 of spheroid, the outer box 3 of ratchet 2 and taking-up device, wherein, this taking-up device also comprises electrical control mechanism 4, described electrical control mechanism 4 comprises driver train 41, crevis 42, axle 43 and elastic element 44, described driver train 41 and elastic element 44 lay respectively at the both sides of crevis 42 away from an end of ratchet 2, and be fixed on the outer box 3 of taking-up device, described crevis 42 is fixed on the outside of ratchet 2 by axle 43 and can rotates around axle 43, axle 43 is fixed on the outer box 3 of taking-up device, one end of elastic element 44 is captiveed joint away from an end of ratchet 2 with crevis 42, and the other end of elastic element 44 is fixed on the outer box 3 of taking-up device.
The safety strap that the utility model provides comprises taking-up device, ribbon and bracelet, wherein, and the Webbing retractor that described taking-up device provides for the utility model.
Safety strap provided by the utility model has following advantage: the 1) application of the automatic lockdown mode of electric-controlled type makes safety strap of the present utility model have simple in structure, easy and simple to handle and automatic latch functions; 2) by with being electrically connected of body weight sensor and electronic control unit, make safety strap described in the utility model have automatic arbitration functions; 3), thereby have higher stability, reliability and safety because contain the lockable mechanism that two covers are separate separately and have difference in functionality and mode respectively.
Description of drawings
The structural representation of the Webbing retractor that Fig. 1 provides for the utility model;
Work scheme drawing under the Webbing retractor child safety pattern that Fig. 2 provides for the utility model;
Work scheme drawing under the Webbing retractor adult mode that Fig. 3 provides for the utility model.
The specific embodiment
As shown in Figure 1, the taking-up device that the utility model provides is a kind of Webbing retractor that comprises the child safety pattern, this Webbing retractor comprises the responsive mechanism 1 of spheroid, ratchet 2, the outer box 3 of taking-up device, wherein, this taking-up device also comprises electrical control mechanism 4, and electrical control mechanism 4 is fixed in the outer box of taking-up device on the position different with spheroid sensitivity mechanism 1.Wherein, the responsive mechanism 1 of spheroid be a lock in emergency mechanism, and electrical control mechanism 4 is the automatic lock locking mechanism, also is child safety safety mechanism, and two to overlap lockable mechanisms separate separately and have difference in functionality and mode respectively.Because the utility model has just increased the electrical control mechanism 4 that is specifically designed to the protection children on the basis of prior art Webbing retractor, therefore the responsive mechanism 1 of spheroid, ratchet 2 and the outer box 3 of taking-up device are had no particular limits.The structure of box 3 is the same with the appropriate section of prior art taking-up device with annexation outside the responsive mechanism 1 of spheroid, ratchet 2 and the taking-up device, be conventionally known to one of skill in the art, for example the responsive mechanism 1 of spheroid is fixed on the inside of the outer box 3 of taking-up device, ratchet 2 can pivotally be fixed on the outer box 3 of taking-up device, responsive mechanism 1 of spheroid and ratchet 2 are in same plane substantially, and the outer box 3 of taking-up device is generally rectangular box.
For example, the responsive mechanism 1 of described spheroid can be the responsive mechanism of spheroid on the common body-restraining seat belt of the prior art, its structure and principle of work have been as well known to those skilled in the art, generally include ball 11, rolling groove 12 and retaining pawl 13, described ball 11 is arranged on the rolling groove 12 and can freely rolls on rolling groove 12, and described retaining pawl 13 is supported on the ball 11 swingably.Wherein said retaining pawl 13 comprises mate, pivot shaft and adjacent part, and described mate sees that in planar view L-shaped, a L shaped part can rotate around pivot shaft, and adjacent part is disk-shaped and captive joint with mate.
Described ratchet 2 is the same with the ratchet of body-restraining seat belt in the prior art, generally includes the hook tooth 21 shown in Fig. 3 and unshowned coil spring, ratchet, inertia plate, ratchet and pilot hole.When vehicle slowed down rapidly, ball 11 rolled on rolling surface 12, made the mate of retaining pawl 13 swing around pivot shaft, like this mate just with hook tooth 21 engagement of ratchet 2, stop safety strap to be pulled out from reel.Described ball 11 is generally spherical steel ball.
The outer box 3 of described taking-up device can be rules or irregularly shaped such as cube shaped, sphere, only otherwise restriction ratchet and reel freely rotate and get final product.
The taking-up device that provides according to the utility model for fixing elastic element 44 more easily, also comprises protruding 3a on the box 3 outside taking-up device, elastic element 44 is captiveed joint with this projection.Described protruding 3a can be structure as a whole with the outer box 3 of taking-up device or absolute construction and being fixed on the outer box 3 of taking-up device.Under the preferable case, described protruding 3a is positioned near on the outer box 3 of the taking-up device of an end of elastic element 44, and an end of described elastic element 44 is away from driver train 41.
Wherein, described electrical control mechanism 4 comprises driver train 41, crevis 42, axle 43 and elastic element 44, described driver train 41 and elastic element 44 lay respectively at the end of crevis 42 away from ratchet 2, and be fixed on the outer box 3 of taking-up device, described crevis 42 is fixed on ratchet 2 outsides by axle 43 and can rotates around axle 43, axle 43 is fixed on the outer box 3 of taking-up device, one end of elastic element 44 is captiveed joint away from an end of ratchet 42 with crevis 42, and the other end is fixed on the outer box 3 of taking-up device.Driver train 41 is electrically connected with the electronic control unit of automobile, thereby accepts the electric control of electronic control unit.
Of the present utility modelly provide a kind of safety strap on the other hand, comprise taking-up device, ribbon and bracelet, described taking-up device comprises the responsive mechanism 1 of spheroid, ratchet 2, the outer box 3 of taking-up device, wherein, this taking-up device also comprises electrical control mechanism 4, and described electrical control mechanism 4 is fixed in the outer box of taking-up device on the position different with spheroid sensitivity mechanism 1.Because the utility model only relates to the improvement to lockable mechanism, therefore ribbon and bracelet are had no particular limits, the position relation between them also is conventionally known to one of skill in the art.For example ribbon can be a various ribbon of the prior art, be generally the ribbon of the 46-48 mm wide made by terylene, 1-4 millimeters thick and be wound on the reel (not shown) that can pivotally be supported on the outer box 3 of taking-up device, the two ends of ribbon are fixed with two parts of bracelet respectively.
The principle of work of the safety strap of child safety pattern that comprises described in the utility model is: when the occupant sits on the seat when belt-strap pulled out, ratchet 2 on the taking-up device can be under ribbon drives A direction rotation in as Fig. 3, the built-in electrical control mechanism 4 of box 3 is all inoperative outside responsive mechanism 1 of the spheroid of taking-up device and the taking-up device.Then, when the occupant buckles belt buckle, safety strap can be exported an electric signal, and simultaneously, the automotive seat body weight sensor is measured body weight and output signal, two signals are sent to the electronic control unit of automobile main control part simultaneously, electronic control unit judges that at first the occupant is adult or children, if body weight greater than setting value, then is judged as the adult, battery control mechanism 4 is inoperative, and the occupant can freely pull out or furl ribbon; If body weight less than setting value, is judged as child passenger, then connect driver train 41; If body weight, is judged as the adult occupant greater than setting value, then disconnect driver train 41.Judge that at described electronic control unit the occupant is for children and when connecting driver train 41, driver train 41 drives crevis 42 around axle 43 rotations, and pulling elastic element 44, make crevis 42 near the motion of the direction of ratchet 2 and with hook tooth 21 engagements (shown in Fig. 2 dotted line) of ratchet 2 peripheries, ribbon is by locking, and the child safety insurance model starts.So when driving, children cause danger with regard to not pulling out ribbon.When the occupant no longer uses of seat belts, bracelet is unclamped, driver train 41 no longer attracts plunger 42, and elastic element 44 and crevis 42 returns, ribbon again can rollbacks or are pulled out.
The same with the prior art safety strap; no matter be insurance for children pattern or adult mode; when automobile crashes; reach at the car deceleration degree under the situation of setting value, the ball 11 in the responsive mechanism 1 of spheroid rolls in rolling groove 12, and the mate that drives on the retaining pawl moves to the direction near ratchet 2; and with hook tooth 21 engagement of ratchet 2 peripheries; the locking ribbon forms protection to the occupant, as shown in Figure 3.
Driver train described in the utility model can be a various driver train of the prior art, as electromagnetic coil structure, hydraulic cylinder structure or piston pump structure, be generally electromagnetic coil structure, described electromagnetic coil structure comprises magnet coil and plunger, described magnet coil is generally the copper wire coil, and described plunger is captiveed joint away from an end of ratchet with crevis.
Described plunger can be the plunger of different shape of the prior art and various materials, as long as the battery coil magnetization that can be energized is generally the ferrous metals shaft.Described plunger can also be integrally formed with crevis.
The utility model to the shape of described crevis without limits, as long as can with the effective ingear mate of the engaging tooth on the ratchet.
Axle described in the utility model can be a various axle of the prior art, is preferably bearing pin, more preferably radially upright columnar pin shaft.
Elastic element described in the utility model is a dynamical element that can broadly be interpreted as automatic cam mechanism, for example can be spring or shell fragment etc., and described spring comprises metal spring, plastics spring etc.
Claims (10)
1. taking-up device, comprise the responsive mechanism (1) of spheroid, the outer box (3) of ratchet (2) and taking-up device, wherein, this taking-up device also comprises electrical control mechanism (4), described electrical control mechanism (4) comprises driver train (41), crevis (42), axle (43) and elastic element (44), described driver train (41) and elastic element (44) lay respectively at the end of crevis (42) away from ratchet (2), and be fixed on the outer box (3) of taking-up device, described crevis (42) is fixed on the outside of ratchet (2) by axle (43) and can rotates around axle (43), axle (43) is fixed on the outer box (3) of taking-up device, one end of elastic element (44) is captiveed joint away from an end of ratchet (2) with crevis (42), and the other end of elastic element (44) is fixed on the outer box (3) of taking-up device.
2. taking-up device according to claim 1, wherein, described driver train (41) is electromagnetic coil structure, piston pump structure or hydraulic cylinder structure.
3. taking-up device according to claim 2, wherein, described electromagnetic coil structure comprises coil and plunger.
4. taking-up device according to claim 3, wherein, an end and the magnet coil of described plunger are close, and the other end is captiveed joint away from an end of ratchet (2) with crevis (42).
5. taking-up device according to claim 3, wherein, described plunger and crevis (42) are structure as a whole.
6. taking-up device according to claim 1 wherein, also comprises projection (3a) on the box (3) outside the taking-up device in ratchet (2) outside, an end of elastic element (44) is captiveed joint with this projection (3a).
7. taking-up device according to claim 6, wherein, described projection (3a) is positioned near on the outer box 3 of the taking-up device of an end of elastic element (44), and an end of described elastic element (44) is away from driver train (41).
8. taking-up device according to claim 6, wherein, the outer box (3) of described projection (3a) and taking-up device is structure as a whole or absolute construction and being fixed on the outer box (3) of taking-up device.
9. taking-up device according to claim 1, wherein, described elastic element is spring or shell fragment.
10. a safety strap comprises taking-up device, ribbon and bracelet, and wherein, described taking-up device is any described taking-up device among the claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520103134 CN2813378Y (en) | 2005-07-29 | 2005-07-29 | Belt retractor and safety belt including the same retractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520103134 CN2813378Y (en) | 2005-07-29 | 2005-07-29 | Belt retractor and safety belt including the same retractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2813378Y true CN2813378Y (en) | 2006-09-06 |
Family
ID=36948462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520103134 Expired - Lifetime CN2813378Y (en) | 2005-07-29 | 2005-07-29 | Belt retractor and safety belt including the same retractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2813378Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109501714A (en) * | 2017-09-15 | 2019-03-22 | 比亚迪股份有限公司 | Vehicle sense locking system, band sense locking system and automobile safety belt latching sensing device |
| CN109624914A (en) * | 2019-01-18 | 2019-04-16 | 麦克英孚(宁波)婴童用品有限公司 | A kind of motorized seat belt regulating mechanism |
| CN110753644A (en) * | 2017-09-05 | 2020-02-04 | 均胜安全系统德国有限公司 | Safety belt retractor |
| CN113085779A (en) * | 2021-04-22 | 2021-07-09 | 武汉理工大学 | Safety belt early warning protection device for automobile driving simulator |
| CN113428107A (en) * | 2021-08-09 | 2021-09-24 | 重庆光大产业有限公司 | Automatically controlled locking coiler with controllability |
| 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 |
-
2005
- 2005-07-29 CN CN 200520103134 patent/CN2813378Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110753644A (en) * | 2017-09-05 | 2020-02-04 | 均胜安全系统德国有限公司 | Safety belt retractor |
| CN109501714A (en) * | 2017-09-15 | 2019-03-22 | 比亚迪股份有限公司 | Vehicle sense locking system, band sense locking system and automobile safety belt latching sensing device |
| CN109624914A (en) * | 2019-01-18 | 2019-04-16 | 麦克英孚(宁波)婴童用品有限公司 | A kind of motorized seat belt regulating mechanism |
| CN109624914B (en) * | 2019-01-18 | 2023-09-22 | 麦克英孚(宁波)婴童用品有限公司 | Electric safety belt adjusting mechanism |
| 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 |
| CN113085779A (en) * | 2021-04-22 | 2021-07-09 | 武汉理工大学 | Safety belt early warning protection device for automobile driving simulator |
| CN113428107A (en) * | 2021-08-09 | 2021-09-24 | 重庆光大产业有限公司 | Automatically controlled locking coiler with controllability |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150729 Granted publication date: 20060906 |
|
| EXPY | Termination of patent right or utility model |