CN107539266A - A kind of double end prefastening car belt - Google Patents
A kind of double end prefastening car belt Download PDFInfo
- Publication number
- CN107539266A CN107539266A CN201710659973.XA CN201710659973A CN107539266A CN 107539266 A CN107539266 A CN 107539266A CN 201710659973 A CN201710659973 A CN 201710659973A CN 107539266 A CN107539266 A CN 107539266A
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- China
- Prior art keywords
- piston
- drive gear
- pretension
- rack
- ribbon
- 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
Links
- 210000001015 abdomen Anatomy 0.000 claims description 21
- 239000007789 gas Substances 0.000 description 10
- 230000036316 preload Effects 0.000 description 3
- 238000012356 Product development Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000003721 gunpowder Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Automotive Seat Belt Assembly (AREA)
Abstract
The present invention provides a kind of double end prefastening car belt, including ribbon, preloader housing, piston, ribbon spool, pretension rack, drive gear and power generating apparatus, one end of the ribbon is connected to safety belt lock catch, the other end is connected with the piston, the piston is bonded relative to one end of the drag-line with the end face of the pretension rack, the pretension rack engages with the drive gear, and the ribbon spool is fixedly connected with the drive gear and can rotated with the rotation of the drive gear.The present invention can make ribbon promote drive gear rotation while pulling back, and so as to drive ribbon spool to rotate, while cost, the volume and weight of approximate reel list preloader is kept, realize the function of double end pretension safety belt.
Description
Technical field
The present invention relates to field of automobile safety, more particularly to a kind of car belt with pretension function.
Background technology
Safety belt is most important part in occupant restraint system.Traditional safety belt is by coiler, ribbon and buckled group
Into in actual use due between safety belt and human body, there is certain gap, if gap is excessive, safety belt will be reduced
Effective range, reduce the efficiency of safety belt.This gap is generally eliminated using belt with pre-load device now, works as collision
When reaching to a certain degree, start preloader, buckle retraction or coiler revolution, reduce the webbing slack amount of safety belt, eliminate
Gap between human body and safety belt and between seat, so as to improve the binding effect of safety belt.
Belt with pre-load device is typically to increase pre- device on conventional security band to form, and pre-tightening apparatus can connect with buckle
Together, can also be combined together with coiler.
Conventional belt with pre-load device can only realize the function of shoulder belt pretension by a set of coiler and preloader, to occupant
The constraint deficiency of hip, poor-performing.To realize the more preferable double end pretension of performance, or need to increase anchor point/lock preloader,
Or need to increase a set of spool.
No matter above the double end pretension of which kind of mode, product structure is all complex, so that product cost is high, volume weight
Amount is big, is difficult to promote.How on the premise of control cost, volume, weight, more preferable pretension performance is realized, is constrained system
One big problem of product development.
The content of the invention
In order to solve the above technical problems, the present invention provides a kind of double end prefastening car belt, including ribbon, preloader
Housing, piston, ribbon spool, pretension rack, drive gear and power generating apparatus, one end of the ribbon are connected to safety belt
Lock, the other end are connected with the piston, and the piston, pretension rack, drive gear and power generating apparatus are respectively positioned on described
In preloader housing, the one end of the piston away from the ribbon is bonded with the end face of the pretension rack, the pretension rack
Engaged with the drive gear, the ribbon spool is fixedly connected with the drive gear and can be with the rotation of the drive gear
And rotate.
Further, the preloader enclosure interior is provided with power generation cabin, power drive room, piston cabin and drive gear
Cabin, the power occur cabin and connected with the power drive room, and the piston is located in the piston cabin and can be in the piston
Moved back and forth in cabin, the drive gear is pivotally connected in the drive gear cabin.
Further, the power generating apparatus is gas generator, and the gas generator is placed in the power and occurred
In cabin.
Further, the pretension rack includes the first bridge pier, the second bridge pier, the first bridge abdomen and bridge floor, first bridge
Pier, the second bridge pier and bridge floor are brought into close contact with the preloader housing, and the first bridge abdomen is what is engaged with the drive gear
Rack.
Further, the pretension rack also includes the second bridge abdomen, and the second bridge abdomen is smooth surface, and with described
One bridge abdomen is connected.
Further, the double end prefastening car belt also includes drag-line, the drag-line be connected to the ribbon with
Between the piston.
Further, the double end prefastening car belt also includes being used to guide the drag-line of the drag-line deflecting to be oriented to
Mechanism, the middle part of the drag-line bypass the drag-line guiding mechanism.
Using double end prefastening car belt provided by the invention, by cleverly structure design, pushed away in gases at high pressure
In piston motion process, ribbon can be made to promote drive gear rotation while pulling back, so as to drive ribbon spool to rotate,
While keeping cost, the volume and weight of approximate reel list preloader, the function of double end pretension safety belt is realized, is significantly subtracted
The cost of small double end pretension safety belt, weight and volume.
Brief description of the drawings
Fig. 1 is the structural representation of double end prefastening car belt described in the present embodiment.
Fig. 2 is distribution schematic diagram of each cabin in preloader housing.
Fig. 3 is the structural representation of pretension rack.
Description of reference numerals：
1st, ribbon, 2, drag-line, 3, drag-line guiding mechanism, 4, preloader housing, 41, power occur cabin, 42, power drive
Room, 43, piston cabin, 44, drive gear cabin, 5, piston, 6, ribbon spool, 7, pretension rack, the 71, first bridge pier, the 72, second bridge
Pier, the 73, first bridge abdomen, the 74, second bridge abdomen, 75, bridge floor, 8, drive gear, 9, gas generator.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Referring to Fig. 1, the double end prefastening car belt of the present embodiment includes ribbon 1, drag-line 2, preloader housing 4, work
Plug 5, ribbon spool 6, pretension rack 7 and drive gear 8, wherein drag-line 2 are used to pull ribbon 1 under the promotion of gases at high pressure,
So as to realize the function of waistband pretension.
In order to bear larger load, drag-line 2 is preferably wirerope in the present embodiment.One end of drag-line 2 is solid with ribbon 1
Fixed connection, the other end are fixedly connected with piston 5.
Ribbon spool 6 is fixedly connected with drive gear 8, and the two in the present embodiment is coaxial fixed, and ribbon spool 6 can be with driving
The rotation of gear 8 and rotate.Ribbon is wound with ribbon spool 6, pre-tightening apparatus is converted to the linear motion of piston 5 when working
The rotation of ribbon spool 6, so as to which ribbon of pulling back realizes the function of shoulder belt pretension.
It is the power generating apparatus of whole pre-tightening mechanism and the work of actuating unit referring to Fig. 2, inside preloader housing 4
Make place, provided with four cabins：Cabin 41, power drive room 42, piston cabin 43 and drive gear cabin 44 occur for power.It is piston 5, pre-
Tight rack 7, drive gear 8 and power generating apparatus are respectively positioned in the preloader housing, and piston 5 can be reciprocal in piston cabin 43
Motion, drive gear 8 are pivotally connected in the drive gear cabin 44.In order that the stable movement of piston 5, piston 5 and pretension tooth
The end face that bar 7 coordinates is designed as plane, and the two is brought into close contact.
Referring to Fig. 2, as power generating apparatus, the present embodiment also includes gas generator 9, and the gas generator 9 is placed in
Power occurs in cabin 41, and power occurs cabin 41 and is connected with power drive room 42.When in case of emergency, gas generator
9 are ignited, and gases at high pressure caused by gunpowder explosion quickly fill with power drive room 42, gases at high pressure promotion lower piston 5 to
Right motion, realize pretension function.
Referring to Fig. 3, the pretension rack 7 as actuating unit includes the first bridge pier 71, the second bridge pier 72, the first bridge abdomen
73 and bridge floor 75, in order that the stable movement of pretension rack 7, the first bridge pier 71, the second bridge pier 72 and bridge floor 75 and preloader housing 4
The part of cooperation is designed as smooth surface, and is brought into close contact with preloader housing 4.First bridge abdomen 73 is to be nibbled with drive gear 8
The rack of conjunction, the linear motion of pretension rack 7 is converted into the rotary motion of drive gear 8.
In order that the normally pull-out of safety belt is unaffected when pretension function does not trigger, the pretension rack 7 of the present embodiment
Also include the second bridge abdomen 74, the second bridge abdomen 74 is designed as smooth surface, and is connected with the first bridge abdomen 73.The pivot of drive gear 8
Turn to be connected in gear cabin 44, and a gear teeth is butted on the transition junction of the first bridge abdomen 73 and the second bridge abdomen 74.Work as pretension
When function does not trigger, drive gear 8 contacts with the second bridge abdomen 74, and because the second bridge abdomen 74 is smooth surface, drive gear 8 can
With free rotation, ensure the normal pull-out of safety belt.
Referring to Fig. 1, in order to guide the deflecting of drag-line 2, the direction of motion of the drag-line 2 along piston 5 is set to stretch, the present embodiment also wraps
Drag-line guiding mechanism 3 is included, drag-line guiding mechanism 3 is fixed on vehicle body sheet metal by some anchor points (not shown), drag-line 2
Middle part bypasses drag-line guiding mechanism 3.
In summary, the double end prefastening car belt of the present embodiment is by the basis of conventional security band, passing through
Increase pre-tightening apparatus, ribbon is promoted drive gear rotation while pulling back, so as to drive ribbon spool to rotate, keeping approximate
While the cost of reel list preloader, volume and weight, the function of double end pretension safety belt is realized, it is pre- significantly to reduce double end
The cost of tight safety belt, weight and volume.
It should be appreciated that various information, but these information are described using term " first ", " second " etc. in the present invention
These terms are should not necessarily be limited by, these terms are only used for same type of information being distinguished from each other out.For example, the present invention is not being departed from
In the case of scope, " first " information can also be referred to as " second " information, similar, and " second " information can also be referred to as
" first " information.
Described above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, under the premise without departing from the principles of the invention, some improvement and deformation can also be made, these are improved and deformation is also considered as
Protection scope of the present invention.
Claims (7)
- A kind of 1. double end prefastening car belt, it is characterised in that including ribbon (1), preloader housing (4), piston (5), Ribbon spool (6), pretension rack (7), drive gear (8) and power generating apparatus, one end of the ribbon (1) are connected to safety Belt lock catch, the other end are connected with the piston (5), and the piston (5), pretension rack (7), drive gear (8) and power occur Device is respectively positioned in the preloader housing (4), the one end of the piston (5) away from the ribbon (1) and the pretension rack (7) end face fitting, the pretension rack (7) are engaged with the drive gear (8), the ribbon spool (6) and the driving Gear (8) is fixedly connected and can rotated with the rotation of the drive gear (8).
- 2. double end prefastening car belt according to claim 1, it is characterised in that in the preloader housing (4) Portion is provided with power and cabin (41), power drive room (42), piston cabin (43) and drive gear cabin (44) occurs, and cabin occurs for the power (41) connected with the power drive room (42), the piston (5) is interior located at the piston cabin (43) and can be in the piston cabin (43) moved back and forth in, the drive gear (8) is pivotally connected in the drive gear cabin (44).
- 3. double end prefastening car belt according to claim 2, it is characterised in that the power generating apparatus is gas Body generator (9), the gas generator (9) are placed in the power and occurred in cabin (41).
- 4. double end prefastening car belt according to claim 1, it is characterised in that the pretension rack (7) includes First bridge pier (71), the second bridge pier (72), the first bridge abdomen (73) and bridge floor (75), first bridge pier (71), the second bridge pier (72) it is brought into close contact with bridge floor (75) with the preloader housing (4), the first bridge abdomen (73) is and the drive gear (8) The rack of engagement.
- 5. double end prefastening car belt according to claim 4, it is characterised in that the pretension rack (7) is also wrapped The second bridge abdomen (74) is included, the second bridge abdomen (74) is smooth surface, and is connected with the first bridge abdomen (73).
- 6. double end prefastening car belt according to claim 1, it is characterised in that also including drag-line (2), the drawing Rope (2) is connected between the ribbon (1) and the piston (5).
- 7. double end prefastening car belt according to claim 6, it is characterised in that also include being used to guide the drawing The drag-line guiding mechanism (3) of rope (2) deflecting, the middle part of the drag-line (2) bypass the drag-line guiding mechanism (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710659973.XA CN107539266B (en) | 2017-08-03 | 2017-08-03 | Double-end pretension formula car blet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710659973.XA CN107539266B (en) | 2017-08-03 | 2017-08-03 | Double-end pretension formula car blet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107539266A true CN107539266A (en) | 2018-01-05 |
| CN107539266B CN107539266B (en) | 2024-03-26 |
Family
ID=60970505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710659973.XA Active CN107539266B (en) | 2017-08-03 | 2017-08-03 | Double-end pretension formula car blet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107539266B (en) |
Citations (16)
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|---|---|---|---|---|
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| JP2003335217A (en) * | 2002-05-21 | 2003-11-25 | Ashimori Ind Co Ltd | Retractor for seat belt |
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| JP2010285048A (en) * | 2009-06-10 | 2010-12-24 | Ts Tech Co Ltd | Occupant restraint system and vehicle seat equipped with the same |
| JP2011168134A (en) * | 2010-02-17 | 2011-09-01 | Mazda Motor Corp | Occupant protection device |
| US20120139324A1 (en) * | 2008-12-29 | 2012-06-07 | Ts Tech Co., Ltd. | Vehicle seat |
| CN202806674U (en) * | 2012-08-21 | 2013-03-20 | 延锋百利得（上海）汽车安全系统有限公司 | Safety belt furling device with rack type pre-tensioning mechanism |
| CN103129513A (en) * | 2011-11-23 | 2013-06-05 | 现代自动车株式会社 | Pretensioner for seat belt |
| US20140084099A1 (en) * | 2011-05-31 | 2014-03-27 | Ashimori Industry Co., Ltd. | Seatbelt retractor |
| CN103847686A (en) * | 2014-01-22 | 2014-06-11 | 湖南大学 | Automobile active type pre-tightening safety belt |
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| CN207241644U (en) * | 2017-08-03 | 2018-04-17 | 广州汽车集团股份有限公司 | A kind of double end prefastening car belt |
-
2017
- 2017-08-03 CN CN201710659973.XA patent/CN107539266B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003056666A (en) * | 2001-08-09 | 2003-02-26 | Matsushita Electric Ind Co Ltd | Rack and pinion device |
| JP2003335217A (en) * | 2002-05-21 | 2003-11-25 | Ashimori Ind Co Ltd | Retractor for seat belt |
| CN1647977A (en) * | 2003-09-12 | 2005-08-03 | Trw汽车股份有限公司 | Pyrotechnical drive |
| JP2006298056A (en) * | 2005-04-18 | 2006-11-02 | Honda Motor Co Ltd | Seat belt device for vehicle |
| JP2007223536A (en) * | 2006-02-24 | 2007-09-06 | Honda Motor Co Ltd | Seat belt device |
| CN101096200A (en) * | 2006-06-30 | 2008-01-02 | 上海冠驰汽车安全技术有限公司 | High-reliability pre-tightening apparatus for safety belt |
| US20120139324A1 (en) * | 2008-12-29 | 2012-06-07 | Ts Tech Co., Ltd. | Vehicle seat |
| JP2010285048A (en) * | 2009-06-10 | 2010-12-24 | Ts Tech Co Ltd | Occupant restraint system and vehicle seat equipped with the same |
| JP2011168134A (en) * | 2010-02-17 | 2011-09-01 | Mazda Motor Corp | Occupant protection device |
| US20140084099A1 (en) * | 2011-05-31 | 2014-03-27 | Ashimori Industry Co., Ltd. | Seatbelt retractor |
| CN103129513A (en) * | 2011-11-23 | 2013-06-05 | 现代自动车株式会社 | Pretensioner for seat belt |
| CN202806674U (en) * | 2012-08-21 | 2013-03-20 | 延锋百利得（上海）汽车安全系统有限公司 | Safety belt furling device with rack type pre-tensioning mechanism |
| CN103847686A (en) * | 2014-01-22 | 2014-06-11 | 湖南大学 | Automobile active type pre-tightening safety belt |
| CN106103208A (en) * | 2014-02-17 | 2016-11-09 | Trw汽车股份有限公司 | Strainer for safety device of vehicle |
| CN104354668A (en) * | 2014-09-20 | 2015-02-18 | 芜湖金安世腾汽车安全系统有限公司 | Auto safety belt restraint device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107539266B (en) | 2024-03-26 |
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