CN110316143A - A kind of car belt retracting assembly - Google Patents

A kind of car belt retracting assembly Download PDF

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Publication number
CN110316143A
CN110316143A CN201910645900.4A CN201910645900A CN110316143A CN 110316143 A CN110316143 A CN 110316143A CN 201910645900 A CN201910645900 A CN 201910645900A CN 110316143 A CN110316143 A CN 110316143A
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CN
China
Prior art keywords
safety belt
brake disc
guide roller
fixed disk
buffer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201910645900.4A
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Chinese (zh)
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CN110316143B (en
Inventor
左肖雄
陈乐朋
占辰
尹佳玉
喻颖倩
冯甘雨
余潜越
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China Three Gorges University CTGU
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China Three Gorges University CTGU
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Priority to CN201910645900.4A priority Critical patent/CN110316143B/en
Publication of CN110316143A publication Critical patent/CN110316143A/en
Application granted granted Critical
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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
    • 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
    • B60R22/341Belt retractors, e.g. reels comprising energy-absorbing means

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

Abstract

The invention discloses a kind of car belt retracting assemblies, comprising: coiler, guide roller, fixed disk, mounting rack, brake assemblies, the coiler are fixed on mounting rack, and safety belt issues from coiler and around guide roller;Fixed disk is fixedly installed in the shaft of the guide roller, the fixed disk is in the form of annular discs, the brake assemblies include: brake disc, thread spindle, the brake disc is discoid, the threaded hole of center setting and threaded shaft fits, it is provided with protrusion on the end face of fixed disk relative brake disk, two groups of moveable buffer stoppers are set in brake disc.The present invention is aiming at the problem that car belt occurs fierce shock with human body when stretching, easily causes harm to the human body, on the basis of not changing existing safety belt furling mechanism, add arrestment mechanism, pressure buffer of the safety belt to human body is decomposed into multistage form, avoid pressure excessive, it guarantees personal safety, so that safety belt is safer.

Description

A kind of car belt retracting assembly
Technical field
The present invention relates to technical field of vehicle safety, specifically a kind of car belt retracting assembly.
Background technique
Occupant and steering wheel and instrument when car belt is in order to which occupant is constrained and avoided collision in collision Dash board etc. occurs secondary collision or goes out outside vehicle the safety device for leading to the casualties when avoiding collision.Car belt can be referred to as again It is one kind of passenger restraint system for seat harness.It is most inexpensively also most effective safety dress that car belt, which is generally acknowledged, It sets, many countries are to force equipment safety band in the equipment of vehicle.
Automotive safety band structure is simpler, and main component is coiler, to recycle safety belt, winding up roller on coiler automatically Upper setting cam bit, when quickly pulling safety belt, cam bit is got up by whipping under the action of the centrifugal force, passes through what is be secured to Pawl is pulled to ratchet by sliding pin, realizes coiler locking, since the process is instantaneity, in the moment of locking, and safety belt It collides between human body, pressure is very big, especially when automobile meets with fierce collision, is easy to happen safety belt to human chest It is injured Deng caused by.
Summary of the invention
It is mentioned above in the background art to solve the purpose of the present invention is to provide a kind of car belt retracting assembly Problem.
To achieve the above object, the invention provides the following technical scheme:
A kind of car belt retracting assembly, comprising: coiler, guide roller, fixed disk, mounting rack, brake assemblies, the retracting Device is fixed on mounting rack, and safety belt issues from coiler and around guide roller;It is fixedly mounted in the shaft of the guide roller There is fixed disk, the fixed disk is in the form of annular discs, and the brake assemblies include: brake disc, thread spindle, and the brake disc is disk Shape, center setting and the threaded holes of threaded shaft fits, thread spindle is through in the threaded hole, thread spindle one end rotation setting On mounting rack, the shaft of the other end and guide roller is connected, and is provided with protrusion, brake disc on the end face of fixed disk relative brake disk Two groups of moveable buffer stoppers of upper setting, and position is corresponding with protrusion, the buffer stopper is arranged in the slot of brake disc, is delayed It rushes on the one end of block far from protrusion and guide post is set, pressure spring is set on the guide post.
As a further solution of the present invention: the buffer stopper and raised opposite end face are set as arc-shaped smooth mistake It crosses, and the height of buffer stopper end face is gradually increased or reduces.
As a further solution of the present invention: the guide roller is arranged two groups, and is parallel to each other and is in same level On.
As a further solution of the present invention: ceramic layer of sand is arranged in the surface of the guide roller.
As a further solution of the present invention: the brake assemblies further include guide rod, and the guide rod is fixed on mounting rack, And through the through-hole that brake disc bottom end is arranged in.
Compared with prior art, the beneficial effects of the present invention are: the present invention for car belt stretch when and human body Fierce the problem of hitting, easily causing harm to the human body, on the basis of not changing existing safety belt furling mechanism, the system of adding occurs Pressure buffer of the safety belt to human body is decomposed into multistage form, avoids pressure excessive, guarantee personal safety by motivation structure, so that Safety belt is safer.
Detailed description of the invention
Fig. 1 is schematic view of the front view of the invention.
Fig. 2 is side structure schematic view of the invention.
Fig. 3 is the enlarged structure schematic diagram in Fig. 1 at A.
Fig. 4 is the side structure schematic view of brake disc in the present invention.
Fig. 5 is the schematic cross-sectional view of brake disc in the present invention.
Fig. 6 is guide roller structural schematic diagram in the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
Please refer to Fig. 1~4, in the embodiment of the present invention, a kind of car belt retracting assembly, comprising: coiler 1, guiding Roller 2, fixed disk 3, mounting rack 5, brake assemblies 6, the coiler 1 are fixed on mounting rack 5, are fixedly mounted by mounting rack 5 In the B column or C column of automobile frame, the guide roller 2 is arranged two groups, and is parallel to each other and is in same level, safety Band 4 issues from coiler 1 and successively around two guide roller 2, is pierced by out of automobile frame;The wherein shaft of a guide roller 2 On be fixedly installed with fixed disk 3, the fixed disk 3 is in the form of annular discs, can rotate synchronously with guide roller 2, and the brake assemblies 6 wrap Include: brake disc 61, thread spindle 62 and guide rod 63, the brake disc 61 are discoid, center setting and the cooperation of thread spindle 62 Threaded hole, through in the threaded hole, described 62 one end of thread spindle is rotatably arranged on mounting rack 5 thread spindle 62, the other end with The shaft of guide roller 2 connects, and the guide rod 63 is fixed on mounting rack 5, and through the through-hole that 61 bottom end of brake disc is arranged in, Thread spindle 62 is driven to rotate when guide roller 2 rotates, so that brake disc 61 is to the direction translational close to or far from fixed disk 3, Gu It is provided with protrusion 31 on the end face of 3 relative brake disk 61 of price fixing, two groups of moveable buffer stoppers 611 are set in brake disc 61, and Position is corresponding with protrusion 31, and the buffer stopper 611 is arranged in the slot of brake disc 61, and buffer stopper 611 is far from protrusion 31 Guide post 612 is set on one end, pressure spring 613 is set on the guide post 612, when fierce hit occurs for vehicle, safety belt 4 is quickly drawn It is dynamic that guide roller 2 is driven to rotate, while brake disc 61 is mobile to 3 direction of fixed disk, when protrusion 31 is contacted with buffer stopper 611, benefit Make 611 pairs of protrusions 31 of buffer stopper cause to limit with the elastic force of pressure spring 613, play a buffer function, to be generated to safety belt 4 Braking effect offsets the kinetic energy of Partial security band 4, and during guide roller 2 continues to rotate, brake disc 61 continues to fixed disk 3 It is close, so that the braking effect enhancing that 611 pairs of protrusions 31 of buffer stopper generate, until balancing out the kinetic energy of safety belt 4 makes its stopping, In this process, protrusion 31 is generated multiple buffer-braking to safety belt 4 by multiple braking effect, i.e., in the stretching that collides Safety belt is realized during safety belt repeatedly to buffer, and the pressure between safety belt and human body is divided into multistage and is offset, is kept away The problem of final strong impaction of human body is damaged to safety belt is exempted from;Further, since in usually brake disc 61 far from fixed disk 3, normal use safety belt will not be impacted, only safety belt pull-out is played after exceeding certain length after automobile collides Braking action.
Such as Fig. 5, buffer stopper 61 is set as arc-shaped with raised 31 opposite end faces and smoothly transits, and to stretch safety belt 4 When 2 rotation direction of guide roller be positive direction, the end face of buffer stopper 61 is gradually decreased along positive direction height, i.e., when colliding, Raised 31 current buffer blocks 61 movement, and from its it is high-end moved to bottom end, in this way end of braking rear guide roller 2 can be in coiler It is rotated backward under 1 return force function, brake disc 61 is made to return to original position.
Since when colliding, safety belt 4 has driving effect to guide roller 2, and realized between the two using friction therebetween Synchronous Transmission, therefore in order to improve frictional force, it avoids occurring to slide relatively, ceramic layer of sand 21 is arranged in the surface of guide roller 2.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (6)

1. a kind of car belt retracting assembly, it is characterised in that: include: coiler (1), guide roller (2), fixed disk (3), peace (5), brake assemblies (6) are shelved, the coiler (1) is fixed on mounting rack (5), and safety belt (4) is issued from coiler (1) And bypass guide roller (2);It is fixedly installed with fixed disk (3) in the shaft of the guide roller (2), the fixed disk (3) is in disk Shape, the brake assemblies (6) include: brake disc (61), thread spindle (62), and the brake disc (61) is discoid, center setting With the threaded hole of thread spindle (62) cooperation, through in the threaded hole, thread spindle (62) one end rotation is set thread spindle (62) It sets on mounting rack (5), the other end is connect with the shaft of guide roller (2), is set on the end face of fixed disk (3) relative brake disk (61) It is equipped with raised (31), two groups of moveable buffer stoppers (611) is set, and position is corresponding with raised (31), institute in brake disc (61) It states buffer stopper (611) to be arranged in the slot of brake disc (61), buffer stopper (611) is arranged on one end far from raised (31) leads Pressure spring (613) are arranged on the guide post (612) in column (612).
2. a kind of car belt retracting assembly according to claim 1, it is characterised in that: the buffer stopper (61) with it is convex It plays (31) opposite end face and is set as arc-shaped and smoothly transit, and the height of buffer stopper (61) end face is gradually increased or reduces.
3. a kind of car belt retracting assembly according to claim 1, it is characterised in that: guide roller (2) setting Two groups, and be parallel to each other and be in same level.
4. a kind of car belt retracting assembly according to claim 1 or 2, it is characterised in that: the guide roller (2) Ceramic layer of sand (21) is arranged in surface.
5. a kind of car belt retracting assembly according to claim 1, it is characterised in that: the brake assemblies (6) are also Including guide rod (63), the guide rod (63) is fixed on mounting rack (5), and through setting in the logical of brake disc (61) bottom end Hole.
6. the application method of car belt retracting assembly according to claim 1-5, it is characterized in that comprising with Lower step:
One) when fierce hit occurs for vehicle, safety belt (4), which quickly pulls, drives guide roller (2) rotation, while brake disc (61) Mobile to fixed disk (3) direction, when raised (31) and buffer stopper (611) contact, the elastic force using pressure spring (613) to buffer Block (611) causes to limit to raised (31), plays a buffer function;
Two) after first time buffer function, safety belt (4) generates braking effect, offsets the kinetic energy of Partial security band (4), and is oriented to During roller (2) continues to rotate, brake disc (61) continues to approach to fixed disk (3), so that buffer stopper (611) produces raised (31) Raw braking effect enhancing, until balancing out the kinetic energy of safety belt (4) makes its stopping, in this process, raised (31) are by more Secondary braking effect generates multiple buffer-braking to safety belt (4), i.e., realizes during colliding and stretching safety belt (4) Safety belt (4) repeatedly buffers;
Three) after safety belt (4) stops completely, due to multiple buffer-braking, the final strong impaction of human body is avoided to safety belt (4) The problem of damaging, and due to that far from fixed disk (3), will not be made to normal use safety belt (4) in usually brake disc (61) At influence, only safety belt (4) pull-out plays braking action after exceeding certain length after automobile collides.
CN201910645900.4A 2019-07-17 2019-07-17 Automobile safety belt winding assembly Active CN110316143B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910645900.4A CN110316143B (en) 2019-07-17 2019-07-17 Automobile safety belt winding assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910645900.4A CN110316143B (en) 2019-07-17 2019-07-17 Automobile safety belt winding assembly

Publications (2)

Publication Number Publication Date
CN110316143A true CN110316143A (en) 2019-10-11
CN110316143B CN110316143B (en) 2020-10-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910645900.4A Active CN110316143B (en) 2019-07-17 2019-07-17 Automobile safety belt winding assembly

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CN (1) CN110316143B (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006006795A1 (en) * 2006-02-14 2007-08-23 Siemens Ag Safety belt system for motor vehicle, has belt roller rolling in and rolling out seat belt strap, and braking system with electrical brake and belt-type mechanical brake, which strengthens braking power generated by electrical brake
CN101068701A (en) * 2004-10-05 2007-11-07 弗劳恩霍弗应用技术研究院 Device and method for tightening a safety belt serving to protect occupants in a vehicle
CN101272937A (en) * 2005-08-30 2008-09-24 威迪欧汽车电子股份公司 Belt retractor
CN109334606A (en) * 2018-12-06 2019-02-15 湖北科技学院 A kind of Torque Controller on seat belt retractor
CN109353305A (en) * 2018-12-06 2019-02-19 湖北科技学院 A kind of seat belt retractor with anti-lock function

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101068701A (en) * 2004-10-05 2007-11-07 弗劳恩霍弗应用技术研究院 Device and method for tightening a safety belt serving to protect occupants in a vehicle
CN101272937A (en) * 2005-08-30 2008-09-24 威迪欧汽车电子股份公司 Belt retractor
DE102006006795A1 (en) * 2006-02-14 2007-08-23 Siemens Ag Safety belt system for motor vehicle, has belt roller rolling in and rolling out seat belt strap, and braking system with electrical brake and belt-type mechanical brake, which strengthens braking power generated by electrical brake
CN109334606A (en) * 2018-12-06 2019-02-15 湖北科技学院 A kind of Torque Controller on seat belt retractor
CN109353305A (en) * 2018-12-06 2019-02-19 湖北科技学院 A kind of seat belt retractor with anti-lock function

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