CN105398417B - A kind of Webbing retractor - Google Patents

A kind of Webbing retractor Download PDF

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Publication number
CN105398417B
CN105398417B CN201510731179.2A CN201510731179A CN105398417B CN 105398417 B CN105398417 B CN 105398417B CN 201510731179 A CN201510731179 A CN 201510731179A CN 105398417 B CN105398417 B CN 105398417B
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CN
China
Prior art keywords
pawl
ratchet
installing plate
section
clamp clip
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Active
Application number
CN201510731179.2A
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Chinese (zh)
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CN105398417A (en
Inventor
魏志辉
王冰
曹秀利
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangxi weikesaifu Aviation Technology Co., Ltd
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North China Institute of Aerospace Engineering
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Priority to CN201510731179.2A priority Critical patent/CN105398417B/en
Publication of CN105398417A publication Critical patent/CN105398417A/en
Application granted granted Critical
Publication of CN105398417B publication Critical patent/CN105398417B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00Safety belts or body harnesses in vehicles
    • B60R22/34Belt retractors, e.g. reels
    • B60R22/36Belt retractors, e.g. reels self-locking in an emergency
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00Safety belts or body harnesses in vehicles
    • B60R22/34Belt retractors, e.g. reels
    • B60R22/36Belt retractors, e.g. reels self-locking in an emergency
    • B60R22/42Belt retractors, e.g. reels self-locking in an emergency having means for acting directly upon the belt, e.g. by clamping or friction

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automotive Seat Belt Assembly (AREA)

Abstract

The present invention provides a kind of Webbing retractor, it includes installing plate one, installing plate two, ratchet, spool, safety belt, torsional spring, pawl one, pawl two and belt clamping device, ratchet is fixedly connected with spool, ratchet and spool are mounted between the installing plate one and installing plate two, safety belt winding is arranged on spool, spool is provided at both ends with torsional spring, the position that the ratchet is corresponded between installing plate one and installing plate two is provided with pawl one, pawl two and belt clamping device, and when there is emergency braking situation in automobile, cooperate between pawl one and the pawl two, the rotation of common latch ratchet, at the same time, belt clamping device is clamped safety belt.The present invention is used and cooperated between pawl one and pawl two, common latch ratchet, while safety belt is clamped, and improves the lockup capacity of Webbing retractor at the same time from different angles, improves the safety and reliability of running car.

Description

A kind of Webbing retractor
Technical field
It is specially a kind of that there is the Webbing retractor of Dual-locking the present invention relates to technical field of vehicle safety, belong to In technical field of automobile parts.
Background technology
Safety belt is one of most important passive security measure of automobile, in view of its significant protecting effect, the whole world at present The equipment of safety belt is formulated and using regulation in existing 29 countries and regions.Functional requirement to coiler is, without using peace Ribbon winding is got up to be protected by during full band, in use, coiler must not hinder ribbon when wearer makees general activity Freely secondary contracting, when car body or occupant bear excess acceleration or tilting of car body exceedes to a certain degree, locking ribbon by occupant about Beam is on the seat.Therefore, the lock ability of safety belt and the reliability of locking how are improved, for the security performance of safety belt With extremely important effect.Current Webbing retractor generally realizes safety belt using ratchet and spool collective effect Locking acts on.But at present to ratchet carry out locking device only with single pawl, since automobile is in an emergency When, tend to great acceleration occur and be subject to great impact force, single pawl locking power is limited, so as to cause The lockup capacity of the coiler of safety belt is difficult to reach preferable requirement.
Based on above technical problem, the present invention provides a kind of Webbing retractor, once emergency braking situation occurs, lead to The pawl for the Dual-locking set that cooperates is crossed, i.e., is cooperated between pawl one and pawl two, common latch ratchet, meanwhile, There is provided belt clamping device, in an emergency situation, while safety belt is clamped, and improves peace at the same time from different angles The lockup capacity of full Webbing retractor, improves the safety and reliability of running car.
The content of the invention
The object of the present invention is to provide a kind of structure and using simply, rationally, cost is low, and performance is stable, service life length A kind of Webbing retractor.
To achieve the above object, the present invention adopts the following technical scheme that:A kind of Webbing retractor, it includes installing plate First, installing plate two, ratchet, spool, safety belt, torsional spring, pawl one, pawl two and belt clamping device, it is characterised in that institute The ratchet stated is fixedly connected with the spool, the ratchet and spool be mounted on the installing plate one and installing plate two it Between, safety belt winding is set on said reel, and the spool is provided at both ends with torsional spring, the installing plate one and described The position that the ratchet is corresponded between installing plate two is provided with pawl one, pawl two and belt clamping device, and works as automobile When there is emergency braking situation, cooperate between the pawl one and the pawl two, the rotation of common latch ratchet, together When, the belt clamping device is clamped safety belt.
Further, preferably, pawl one is B-shaped pawl, pawl two is bending pawl, the installing plate one and peace Multiple supported holes are both provided with loading board two, is provided with and is across between the installing plate one and installing plate two in the supported hole Support shaft one and support shaft two, the position that the ratchet is corresponded in the support shaft one is rotatably provided with the B-shaped Pawl, the position that the ratchet is corresponded in the support shaft two is rotatably provided with bending pawl, and the support shaft one is set Put one end away from ratchet on the lower section of the support shaft two, the B-shaped pawl and be connected with lower pull rod, it is described curved The one end of folding pawl away from ratchet is connected with upper connecting rod, and pawl ejection cylinder is used between the lower pull rod and the upper connecting rod Connection, the pawl ejection cylinder interior are provided with space ring, and the pawl ejection cylinder is divided into one He of closed chamber by the space ring Closed chamber two, what the end of the upper connecting rod was slidably stretched into the form of piston is arranged in the closed chamber one, described The end of lower pull rod is slidably being arranged in the closed chamber two of stretching into equally in the form of piston, one He of closed chamber Gas aspirator is connected between closed chamber two, when the gas aspirator starts, the gas in the closed chamber one is drained into The closed chamber two, thus be the upper connecting rod and the lower pull rod are moved along identical direction so that the second Font pawl and bending pawl are rotated to ratchet direction jointly, coordinate latch ratchet jointly.
Further, preferably, being provided with mounting hole on the ratchet, the ratchet is connected by mounting hole and axis pin Set on said reel.
Further, preferably, being additionally provided with support shaft three between the installing plate one and installing plate two, the support shaft It is fixedly installed clamp clip support plate on three, the side in the clamp clip support plate close to installing plate two is provided with clamp clip branch Fagging fixed column, the insertion of clamp clip support plate fixed column 19 are fixed on the installing plate two, the clamp clip branch The end set of fagging fixes to clamp piece and mobile clamp clip, and the safety belt is arranged on the piece that fixes to clamp and is pressed from both sides with mobile Between tight piece, clamping cylinder is additionally provided with the clamp clip support plate, the piston rod of the clamping cylinder, which is fixedly connected, is arranged on institute State on mobile clamp clip, gas generator is provided with and communicated with the clamping cylinder.
Further, preferably, described fix to clamp is provided with clamping on the piece face opposite with the mobile clamp clip and rubs Wipe raised, the mobile clamp clip fixes to clamp that to be also equipped with grip friction on the opposite face of piece raised with described.
Further, preferably, the surface of grip friction protrusion is coarse abrasion-proof structure.
Further, preferably, the bending pawl includes upper locking tip section, middle linkage section and upper force section, its In, one end of the upper locking tip section is the tip for coordinating locking with the ratchet, the other end at the upper locking tip with One end connection of the middle linkage section, the other end connection of the middle linkage section are arranged on one end of the upper force section On, the other end of the upper force section is hingedly arranged on the upper connecting rod using axis pin.
Further, preferably, the B-shaped pawl includes lower locking tip section, arc linkage section and lower force section, Wherein, one end of the lower locking tip section be with the ratchet coordinate locking tip, the other end at the lower locking tip It is connected with one end of the arc linkage section, the other end connection of the arc linkage section is arranged on one end of the lower force section On, the other end of the lower force section is hingedly arranged on the lower pull rod using axis pin.
Further, preferably, being spatially additionally provided with dust cover between the installing plate one and the installing plate two, Locking controller is further included, the locking controller is connected with the gas aspirator and gas generator.
The beneficial effects of the present invention are:
A kind of Webbing retractor provided by the invention, once emergency braking situation occurs, by cooperating what is set Cooperate between the pawl of Dual-locking, i.e. pawl one and pawl two, common latch ratchet, meanwhile, there is provided safety belt clamping Device, in an emergency situation, while is clamped safety belt, improves the locking of Webbing retractor at the same time from different angles Ability, improves the safety and reliability of running car.
Brief description of the drawings
Fig. 1 is a kind of structure diagram of Webbing retractor of the present invention;
Fig. 2 is a kind of another angled arrangement schematic diagram of Webbing retractor of the present invention;
Fig. 3 is a kind of pawl work attachment structure schematic diagram of Webbing retractor of the present invention;
Wherein, 1, installing plate one, 2, installing plate two, 3, ratchet, 4, spool, 5, safety belt, 6, ratchet mounting hole, 7, turn round Spring, 8, support shaft one, 9, support shaft two, 10, supported hole, 11, B-shaped pawl, 12, bending pawl, 13, support shaft three, 14, Fix to clamp piece, 15, mobile clamp clip, 16, pawl ejection cylinder, 17, gas aspirator, 18, clamp clip support plate, 19, clamp Piece support plate fixed column, 20, clamping cylinder, 21, grip friction it is raised, 22, upper connecting rod, 23, lower pull rod, 24, closed chamber one, 25, Closed chamber two, 26, space ring.
Embodiment
Come to carry out the present invention detailed description below in conjunction with attached drawing.It should be appreciated, however, that attached drawing has been provided only more Understand the present invention well, they should not be interpreted as limitation of the present invention.
As shown in Figure 1, the present invention provides a kind of Webbing retractor, it include installing plate 1, installing plate 22, ratchet 3, Spool 4, safety belt 5, torsional spring 7, pawl one, pawl two and belt clamping device, ratchet 3 are fixedly connected with the spool 4, institute State ratchet 3 and spool 4 is mounted between the installing plate 1 and installing plate 22, the winding of safety belt 5 is arranged on institute State on spool 4, the spool 4 is provided at both ends with torsional spring 7, between the installing plate 1 and the installing plate 22 described in correspondence The position of ratchet 3 is provided with pawl one, pawl two and belt clamping device, and when emergency braking situation occurs in automobile, Cooperate between the pawl one and the pawl two, the rotation of common latch ratchet, meanwhile, the belt clamping device Safety belt is clamped.
In the present embodiment, as shown in Figs. 1-3, pawl one is B-shaped pawl 11, and pawl two is bending pawl 12, described Multiple supported holes 10 are both provided with installing plate 1 and installing plate 22, is provided with the supported hole 10 and is across the installation Support shaft 1 and support shaft 29 between plate 1 and installing plate 22, the position of the ratchet 3 is corresponded in the support shaft 1 The B-shaped pawl 11 is rotatably provided with, the position that the ratchet 3 is corresponded in the support shaft 29 is rotatably set There is bending pawl 12, and the support shaft 1 is arranged on the lower section of the support shaft 29, it is remote on the B-shaped pawl 11 One end of ratchet 2 is connected with lower pull rod 23, and the described one end of bending pawl 12 away from ratchet 3 is connected with upper connecting rod 22, connected using pawl ejection cylinder 16 between the lower pull rod 23 and the upper connecting rod 22, set inside the pawl ejection cylinder 16 Be equipped with space ring 26, the space ring 26 divides the pawl ejection cylinder 16 for closed chamber 1 and closed chamber 2 25, it is described on What the end of pull rod 22 was slidably stretched into the form of piston is arranged in the closed chamber 1, the end of the lower pull rod 23 Portion is slidably being arranged in the closed chamber 2 25 of stretching into equally in the form of piston, the closed chamber 1 and closed chamber Gas aspirator 17 is connected between 2 25, when the gas aspirator 17 starts, the gas in the closed chamber 1 is arranged To the closed chamber 2 25, thus be the upper connecting rod 22 and the lower pull rod 23 are moved along identical direction so that Obtain the B-shaped pawl 11 and bending pawl 12 is rotated to ratchet direction jointly, coordinate latch ratchet jointly.
Meanwhile mounting hole 6 is provided with the ratchet 3, the ratchet 3 is arranged on by mounting hole 6 and axis pin connection On the spool 4.Support shaft 3 13 is additionally provided between the installing plate 1 and installing plate 22, is consolidated in the support shaft 3 13 Surely it is provided with clamp clip support plate 18, the side in the clamp clip support plate 18 close to installing plate 2 13 is provided with clamp clip branch Fagging fixed column 19, the insertion of clamp clip support plate fixed column 19 are fixed on the installing plate 22, the clamp clip The end set of support plate 18 fixes to clamp piece 14 and mobile clamp clip 15, and the safety belt 5 is arranged on described fix to clamp Between piece 14 and mobile clamp clip 15, clamping cylinder 20, the work of the clamping cylinder 20 are additionally provided with the clamp clip support plate 18 Stopper rod, which is fixedly connected, to be arranged on the mobile clamp clip 15, and gas generator is provided with and communicated with the clamping cylinder 20.
It is described to fix to clamp on the face opposite with the mobile clamp clip 15 of piece 14 in order to improve the clamping force to safety belt It is provided with grip friction protrusion 21, the mobile clamp clip 15 is also equipped with clamping with described fix to clamp on the opposite face of piece 14 Friction protrusion 21.Wherein, the surface of the grip friction protrusion 21 is coarse abrasion-proof structure.
In the present embodiment, the bending pawl 12 includes upper locking tip section, middle linkage section and upper force section, its In, one end of the upper locking tip section is the tip for coordinating locking with the ratchet, the other end at the upper locking tip with One end connection of the middle linkage section, the other end connection of the middle linkage section are arranged on one end of the upper force section On, the other end of the upper force section is hingedly arranged on the upper connecting rod using axis pin.Similarly, B-shaped pawl includes lower lock Only tip section, arc linkage section and lower force section, wherein, one end of the lower locking tip section is to coordinate locking with the ratchet Tip, the other end at the lower locking tip is connected with one end of the arc linkage section, the arc linkage section it is another End connection is arranged on it is described it is lower force section one end on, it is described it is lower force section the other end using axis pin be hingedly arranged on it is described under On pull rod.
Dust cover (not shown) is spatially additionally provided between the installing plate 1 and the installing plate 22, also Including locking controller, the locking controller is connected with the gas aspirator and gas generator.
A kind of Webbing retractor provided by the invention, in automobile when emergency braking situation occurs, passes through phase interworking The pawl of the Dual-locking set is closed, i.e., is cooperated between pawl one and pawl two, common latch ratchet, meanwhile, there is provided peace Full band clamping device, in an emergency situation, while is clamped safety belt, improves safety belt retracting at the same time from different angles The lockup capacity of device, improves the safety and reliability of running car.
Embodiment of above is merely to illustrate the present invention, and not limitation of the present invention, in relation to the common of technical field Technical staff, without departing from the spirit and scope of the present invention, can also make a variety of changes and modification, therefore all Equivalent technical solution falls within scope of the invention, and scope of patent protection of the invention should be defined by the claims.

Claims (8)

1. a kind of Webbing retractor, it include installing plate one, installing plate two, ratchet, spool, safety belt, torsional spring, pawl one, Pawl two and belt clamping device, it is characterised in that the ratchet is fixedly connected with the spool, the ratchet and spool It is mounted between the installing plate one and installing plate two, the safety belt winding is set on said reel, the spool Be provided at both ends with torsional spring, the position that the ratchet is corresponded between the installing plate one and the installing plate two is provided with pawl First, pawl two and belt clamping device, and when emergency braking situation occurs in automobile, the pawl one and the pawl two Between cooperate, the rotation of common latch ratchet, meanwhile, the belt clamping device is clamped safety belt;Pawl One is B-shaped pawl, and pawl two is bending pawl, and multiple supported holes, institute are both provided with the installing plate one and installing plate two State the support shaft one and support shaft two for being provided with and being across between the installing plate one and installing plate two in supported hole, the support The position that the ratchet is corresponded on axis one is rotatably provided with the B-shaped pawl, and the spine is corresponded in the support shaft two The position of wheel is rotatably provided with bending pawl, and the support shaft one is arranged on the lower section of the support shaft two, the second One end away from ratchet is connected with lower pull rod on font pawl, and the described one end of bending pawl away from ratchet is connected with Upper connecting rod, is connected between the lower pull rod and the upper connecting rod using pawl ejection cylinder, and the pawl ejection cylinder interior is provided with The pawl ejection cylinder is divided into closed chamber one and closed chamber two by space ring, the space ring, and the end of the upper connecting rod is with work What the form of plug slidably stretched into is arranged in the closed chamber one, and the end of the lower pull rod can equally in the form of piston Slip is arranged in the closed chamber two with stretching into, and gas aspirator, institute are connected between the closed chamber one and closed chamber two When stating the startup of gas aspirator, the gas in the closed chamber one is drained into the closed chamber two, so that the upper connecting rod Moved with the lower pull rod along identical direction, so that the B-shaped pawl and bending pawl are jointly to ratchet direction Rotate, coordinate latch ratchet jointly.
A kind of 2. Webbing retractor according to claim 1, it is characterised in that mounting hole is provided with the ratchet, The ratchet is set on said reel by mounting hole and axis pin connection.
A kind of 3. Webbing retractor according to claim 1, it is characterised in that the installing plate one and installing plate two it Between be additionally provided with support shaft three, clamp clip support plate is fixedly installed in the support shaft three, is leaned in the clamp clip support plate The side of nearly installing plate two is provided with clamp clip support plate fixed column, and the clamp clip support plate fixed column is inserted and fixed setting On the installing plate two, the end set of the clamp clip support plate fixes to clamp piece and mobile clamp clip, the safety Band is fixed to clamp between piece and mobile clamp clip described in being arranged on, and clamping cylinder is additionally provided with the clamp clip support plate, described The piston rod of clamping cylinder, which is fixedly connected, to be arranged on the mobile clamp clip, and gas is provided with and communicated with the clamping cylinder Device.
4. a kind of Webbing retractor according to claim 3, it is characterised in that described to fix to clamp piece and the movement Grip friction protrusion is provided with the opposite face of clamp clip, the mobile clamp clip is fixed to clamp on the opposite face of piece with described It is provided with grip friction protrusion.
5. a kind of Webbing retractor according to claim 4, it is characterised in that the surface of the grip friction protrusion is Coarse abrasion-proof structure.
6. a kind of Webbing retractor according to claim 1, it is characterised in that the bending pawl includes upper locking point Section, middle linkage section and upper force section are held, wherein, one end of the upper locking tip section is the point for coordinating locking with the ratchet End, the other end at the upper locking tip and one end of the middle linkage section connect, and the other end of the middle linkage section connects Connect and be arranged on one end of the upper force section, the other end of the upper force section is hingedly arranged on the upper connecting rod using axis pin On.
7. a kind of Webbing retractor according to claim 1, it is characterised in that the B-shaped pawl includes lower locking Tip section, arc linkage section and lower force section, wherein, one end of the lower locking tip section is to coordinate locking with the ratchet Tip, the other end at the lower locking tip are connected with one end of the arc linkage section, the other end of the arc linkage section Connection is arranged on one end of the lower force section, and the other end of the lower force section is hingedly arranged on the drop-down using axis pin On bar.
8. a kind of Webbing retractor according to claim 3, it is characterised in that the installing plate one and the installing plate Dust cover is spatially additionally provided between two, further includes locking controller, the locking controller and the gas aspirator Connected with gas generator.
CN201510731179.2A 2015-10-29 2015-10-29 A kind of Webbing retractor Active CN105398417B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510731179.2A CN105398417B (en) 2015-10-29 2015-10-29 A kind of Webbing retractor

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Application Number Priority Date Filing Date Title
CN201510731179.2A CN105398417B (en) 2015-10-29 2015-10-29 A kind of Webbing retractor

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CN105398417B true CN105398417B (en) 2018-04-20

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106890405A (en) * 2017-04-13 2017-06-27 苏州市职业大学 A kind of electric pole operation safety belt

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1033608A (en) * 1987-09-16 1989-07-05 奥洛利夫-科尔夫股份有限公司 The belt clamping apparatus that the belt placement system of belt coiler is arranged
CN1100044A (en) * 1993-06-01 1995-03-15 Trw莱帕有限公司 Seat belt retractor
CN1100043A (en) * 1993-09-10 1995-03-15 高田株式会社 Seat belt retractor
CN1145605A (en) * 1995-01-19 1997-03-19 Trw乘员约束系统公司 Transport safety system on a belt winding unit
US5887814A (en) * 1996-10-17 1999-03-30 Nsk Ltd. Seat belt retractor and controlling method of the same
CN1680150A (en) * 2004-04-09 2005-10-12 株式会社东海理化电机制作所 Webbing retractor
CN101306676A (en) * 2007-05-18 2008-11-19 德尔斐韩国株式会社 Seat belt retractor

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1033608A (en) * 1987-09-16 1989-07-05 奥洛利夫-科尔夫股份有限公司 The belt clamping apparatus that the belt placement system of belt coiler is arranged
CN1100044A (en) * 1993-06-01 1995-03-15 Trw莱帕有限公司 Seat belt retractor
CN1100043A (en) * 1993-09-10 1995-03-15 高田株式会社 Seat belt retractor
CN1145605A (en) * 1995-01-19 1997-03-19 Trw乘员约束系统公司 Transport safety system on a belt winding unit
US5887814A (en) * 1996-10-17 1999-03-30 Nsk Ltd. Seat belt retractor and controlling method of the same
CN1680150A (en) * 2004-04-09 2005-10-12 株式会社东海理化电机制作所 Webbing retractor
CN101306676A (en) * 2007-05-18 2008-11-19 德尔斐韩国株式会社 Seat belt retractor

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