CN107199986A - A kind of energy absorption device and method for child safety seat restraint strap - Google Patents
A kind of energy absorption device and method for child safety seat restraint strap Download PDFInfo
- Publication number
- CN107199986A CN107199986A CN201710288297.XA CN201710288297A CN107199986A CN 107199986 A CN107199986 A CN 107199986A CN 201710288297 A CN201710288297 A CN 201710288297A CN 107199986 A CN107199986 A CN 107199986A
- Authority
- CN
- China
- Prior art keywords
- energy
- piston
- restraint strap
- absorbing cylinder
- spring
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- 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.)
- Pending
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Classifications
-
- 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
- B60R22/28—Safety belts or body harnesses in vehicles incorporating energy-absorbing devices
-
- 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
- B60R22/02—Semi-passive restraint systems, e.g. systems applied or removed automatically but not both ; Manual restraint systems
-
- 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
- B60R22/10—Safety belts or body harnesses in vehicles specially adapted for children or animals
- B60R22/105—Safety belts or body harnesses in vehicles specially adapted for children or animals for children
-
- 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
- B60R22/28—Safety belts or body harnesses in vehicles incorporating energy-absorbing devices
- B60R2022/285—Safety belts or body harnesses in vehicles incorporating energy-absorbing devices using friction surfaces
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
The invention discloses a kind of energy absorption device and method for child safety seat restraint strap, including energy-absorbing cylinder, hook tabs, spring, piston, honeycomb aluminum and piston rod；The end sealing of energy-absorbing cylinder, bottom are provided with opening；The spring, piston, honeycomb aluminum are located at the inside of energy-absorbing cylinder；The top of spring is fixedly connected with the inner tip of energy-absorbing cylinder, and the bottom of spring is fixedly connected with the top surface of the piston；Cavity between the bottom surface of piston and energy-absorbing cylinder bottom fills the honeycomb aluminum；The top of piston rod is fixedly connected with the bottom surface of the piston, and the bottom of piston rod passes the opening of the energy-absorbing cylinder bottom；The bottom of piston rod is fixedly connected with hollow block；Hook tabs is arranged on the outer tip end of the energy-absorbing cylinder.When colliding, the propulsion of children drives shoulder belt restraint strap to travel forward, and by the friction of honeycomb aluminum and piston and energy-absorbing barrel, substantially reduces the collision impact suffered by children.Energy absorption device of the present invention is simple in construction, energy-absorbing effect notable, is easy to manufacture.
Description
Technical field
The present invention relates to the restraint strap attachment means of child safety seat, to youngster when this restraint strap energy absorption device is used to collide
Virgin body part is protected, and mitigates the collision impact suffered by children, improves the security of child passenger.
Background technology
With the appearance of China's motor vehicle child passenger regulation, related researcher and consumer more pay attention to children's peace
The protective value of full seat.But, substantial amounts of experimental study is found, although the detection of child safety seat meets relevant laws and regulations,
But the child chest acceleration and head acceleration ridden in child safety seat remain unchanged it is very high, and to protection of the child performance most
Significant structure is restraint belt for children, and restraint belt for children is constituted by being fixedly connected with band and shoulder belt, and this two parts restraint strap passes through eight
Word hook iron plate is connected.But eight traditional word hook iron plates and the function without energy-absorbing, therefore child chest can not be reduced well
Acceleration, mitigates the collision impact that children receive.The present invention is improved to restraint strap attachment means, increases energy absorption device, drop
Low child chest acceleration, significantly reduces child chest acceleration, improves the protecting effect to children, improves child passenger
Security.
The content of the invention
It is an object of the invention to provide a kind of energy absorption device for child safety seat restraint strap, to reducing collisions pair
The injury of child passenger.
Energy absorption device of the present invention for child safety seat restraint strap, including energy-absorbing cylinder, hook tabs, spring, work
Plug, honeycomb aluminum and piston rod, the energy-absorbing cylinder is cylinder, diameter 60mm, wall thickness 5mm, in energy-absorbing cylinder containing spring, piston,
Honeycomb aluminum and piston rod, energy-absorbing cylinder top are sealed, and energy-absorbing cylinder top outer has two symmetrical hook tabs.
The hook tabs is used to fix two shoulder belt restraint straps respectively, and shoulder belt restraint strap is placed in hook tabs.
The spring is located at upper end in energy-absorbing cylinder, and spring one end is fixedly connected with energy-absorbing cylinder top, and the other end is fixedly connected with work
Plug, spring original state is compressive state, and the spring rate used is 1250N/M, and spring materials are SWP materials, line footpath
2.0mm, external diameter 22.0mm, compressible scope is 0-60mm.
The piston is circle, positioned at spring bottom, is brought into close contact with energy-absorbing cylinder, can be rubbed along above and below energy-absorbing cylinder inwall
Wipe and slide, piston lower portion has a piston rod, the cavity between piston and energy-absorbing cylinder bottom is filled with honeycomb aluminum, cavity height 20mm,
Buffer piston stroke 4-15mm.
The piston rod is through energy-absorbing cylinder bottom, and underpart of the piston rod has a hollow block, for the restraint strap that is connected, fixed
Restraint strap is placed in the hole of hollow block, and piston rod bottom is fixed on the seat, non-dismountable.
Based on said apparatus, the energy-absorbing method of the restraint strap of children's seat proposed by the present invention is：
When a vehicle is in a collision, the children in child safety seat travel forward, and drive shoulder belt restraint strap to stretch forward,
Now, the energy-absorbing cylinder of fixed shoulder belt restraint strap is with the stretching of shoulder belt restraint strap, and upward sliding produces relative motion with piston,
Impact energy is partially converted into the friction energy of piston and cylinder inwall.Meanwhile, the honeycomb aluminum between energy-absorbing cylinder compression piston and cylinder bottom
Most collision energy is absorbed, so that the chest acceleration of children is significantly reduced, and shoulder belt restraint strap is also released forward
A certain distance so that children are unlikely to by larger restraining force, mitigates the extruding that shoulder belt restraint strap is caused to thoracic cavity, significantly
Ground has buffered the collision impact that child passenger is subject to, the collision injury suffered by reduction child chest.After generation is collided, energy-absorbing cylinder
Contained spring is in extended state, and spring drives barrel to move downward, so that children's shoulder belt restraint strap on the outside of barrel exists
Moved backward under the pulling force effect of spring, recover initial shoulder belt position, so that child passenger body is retracted on backrest.
Beneficial effects of the present invention：
The present invention constitutes child safety seat restraint strap using energy-absorbing cylinder, hook tabs, spring, piston, honeycomb aluminum and piston rod
Energy absorption device, when colliding, the propulsion of children drives shoulder belt restraint strap to travel forward, and shoulder belt restraint strap can lead to
The friction of honeycomb aluminum and piston and energy-absorbing barrel is crossed, the suction of the collision impact suffered by children, especially honeycomb aluminum is substantially reduced
Can effect, on the one hand can significantly reduce the chest acceleration of child passenger, on the other hand, due to shoulder belt forward direction release away from
From the shoulder belt restraining force suffered by reduction children mitigates the extruding in thoracic cavity, effectively mitigates the collision impact suffered by children.The present invention
Described child safety seat restraint strap energy absorption device, simple in construction, energy-absorbing effect significantly, is easy to manufacture.
Brief description of the drawings
Fig. 1 is the structural representation of child safety seat restraint strap energy absorption device of the present invention.
In figure：1- energy-absorbings cylinder 2- hook tabs 3- spring 4- piston 5- honeycomb aluminum 6- piston rods.
Embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.
Present invention can apply on the restraint strap of existing child safety seat, such as Fig. 1, one kind is used for child safety seat
The energy absorption device of restraint strap, including energy-absorbing cylinder 1, hook tabs 2, spring 3, piston 4, honeycomb aluminum 5 and piston rod 6, the energy-absorbing cylinder 1 is
Contain spring 3, piston 4, honeycomb aluminum 5 and piston rod 6 in cylinder, energy-absorbing cylinder 1, the top of energy-absorbing cylinder 1 is sealed, the top of energy-absorbing cylinder 1
There are two symmetrical hook tabs 2 in outside.
The hook tabs 2 is used to fix two shoulder belt restraint straps respectively, and shoulder belt restraint strap is placed in hook tabs 2.
The spring 3 is located at energy-absorbing 1 inner upper end of cylinder, and the one end of spring 3 is fixedly connected with the top of energy-absorbing cylinder 1, and the other end is fixed
Piston 4 is connected, the original state of spring 3 is compressive state, for compression piston 4.
The piston 4 is circle, positioned at the bottom of spring 3, is brought into close contact with energy-absorbing cylinder 1, can be along above and below energy-absorbing 1 inwall of cylinder
Frictional Slipping, the bottom of piston 4 has the cavity between piston rod 6,1 bottom of piston 4 and energy-absorbing cylinder to be filled with honeycomb aluminum 5.
The piston rod 6 is through 1 bottom of energy-absorbing cylinder, and a hollow block is arranged at the bottom of piston rod 6, for the restraint strap that is connected,
Fixed constraint band is placed in hole, and piston rod bottom is fixed on the seat, non-dismountable.
The embodiment is：
With reference to Fig. 1, when a vehicle is in a collision, the children in child safety seat travel forward, and drive shoulder belt restraint strap
Stretch forward, shoulder belt restraint strap drives hook tabs 2 to move upwards, now, the energy-absorbing cylinder 1 in hook tabs 2, on the one hand as shoulder belt is constrained
The stretching of band, upward sliding produces relative motion with piston 4, on the other hand by the top extension spring 3 of energy-absorbing cylinder 1, and lives
The one end of stopper rod 6 is connected restraint strap, and the other end is in stationary state together with piston 4, so that impact energy is partially converted into work
The friction energy of plug 4 and energy-absorbing 1 inwall of cylinder.Meanwhile, the honeycomb aluminum 5 between energy-absorbing 1 compression piston 4 of cylinder and cylinder bottom, honeycomb aluminum 5 absorbs
Most collision energy, so that the chest acceleration of children is significantly reduced, and shoulder belt restraint strap is also released forward necessarily
Distance so that children are unlikely to by larger restraining force, mitigate the extruding that shoulder belt restraint strap is caused to thoracic cavity, significantly delay
The collision impact that child passenger is subject to is rushed, the collision injury suffered by reduction child chest.After generation is collided, in energy-absorbing cylinder 1
Portion's spring 3 is in extended state, and spring 3 drives barrel to move downward, so that children's shoulder belt restraint strap on the outside of barrel exists
Moved backward under the pulling force effect of spring 3, recover initial shoulder belt position, so that child passenger body is retracted on backrest.
The embodiment of above-mentioned use, for the sake of security, should also coordinate the top tether one on child safety seat
Rise and tie up shield and use, preferably protect child, eliminate safe hidden trouble.
Child safety seat restraint strap energy absorption device of the present invention, passes through rubbing for honeycomb aluminum and piston and energy-absorbing barrel
Wipe, the chest acceleration of child passenger can be significantly reduced, mitigate the extruding in thoracic cavity, effectively mitigate the collision punching suffered by children
Hit.Child safety seat restraint strap energy absorption device of the present invention, simple in construction, energy-absorbing effect significantly, is easy to manufacture.
Those listed above is a series of to be described in detail only for feasibility embodiment of the invention specifically
Bright, they simultaneously are not used to limit the scope of the invention, all equivalent implementations made without departing from skill spirit of the present invention
Or change should be included in the scope of the protection.
Claims (7)
1. a kind of energy absorption device for child safety seat restraint strap, it is characterised in that including：Energy-absorbing cylinder (1), hook tabs (2),
Spring (3), piston (4), honeycomb aluminum (5) and piston rod (6)；The end sealing of the energy-absorbing cylinder (1), bottom are provided with opening；Institute
Spring (3), piston (4), honeycomb aluminum (5) are stated positioned at the inside of energy-absorbing cylinder (1)；The top of the spring (3) is fixedly connected
The inner tip of energy-absorbing cylinder (1), the bottom of the spring (3) is fixedly connected with the top surface of the piston (4)；The piston (4)
Cavity between bottom surface and energy-absorbing cylinder (1) bottom fills the honeycomb aluminum (5)；The top of the piston rod (6), which is fixed, to be connected
The bottom surface of the piston (4) is connect, the bottom of the piston rod (6) passes the opening of described energy-absorbing cylinder (1) bottom；The piston rod
(6) bottom is fixedly connected with hollow block；The hook tabs (2) is arranged on the outer tip end of the energy-absorbing cylinder (1).
2. a kind of energy absorption device for child safety seat restraint strap according to claim 1, it is characterised in that described
Energy-absorbing cylinder (1) is cylinder, diameter 60mm, wall thickness 5mm.
3. a kind of energy absorption device for child safety seat restraint strap according to claim 1, it is characterised in that described
The original state of spring (3) is compressive state, and spring rate is 1250N/M, and spring materials are SWP materials, line footpath 2.0mm, outside
Footpath 22.0mm, compressible scope is 0-60mm.
4. a kind of energy absorption device for child safety seat restraint strap according to claim 1, it is characterised in that described
The cushion stroke of piston (4) is 4-15mm.
5. a kind of energy absorption device for child safety seat restraint strap according to claim 1, it is characterised in that described
The height of cavity is 20mm.
6. a kind of energy absorption device for child safety seat restraint strap according to claim 1, it is characterised in that described
Hook tabs (2) is arranged symmetrically on the top of energy-absorbing cylinder (1).
7. a kind of energy-absorbing method for child safety seat restraint strap, it is characterised in that
It is fixed before use, shoulder belt restraint strap is enclosed in hook tabs (2), the fixed constraint band of seat bottom is placed on hollow block
Inside it is fixed；
When a vehicle is in a collision, the children in child safety seat travel forward, and drive shoulder belt restraint strap to stretch forward, shoulder belt
Restraint strap stay hook is in hook tabs (2), drive hook tabs (2) is moved upwards, now, and the energy-absorbing cylinder of fixed shoulder belt restraint strap is with shoulder
The stretching of belt restraining band, upward sliding is driven by hook tabs (2), produces relative motion with piston (4), impact energy is partially converted into
The friction energy of piston (4) and energy-absorbing cylinder (1) inwall；Meanwhile, the honeycomb aluminum (5) between energy-absorbing cylinder (1) compression piston and cylinder bottom is inhaled
Most collision energy is received, so that the chest acceleration of children is significantly reduced, and shoulder belt restraint strap is also released forward necessarily
Distance so that children are unlikely to by larger restraining force, mitigate the extruding that shoulder belt restraint strap is caused to thoracic cavity；
After generation is collided, energy-absorbing cylinder (1) contained spring (3) is in extended state, and spring (3) drives energy-absorbing cylinder (1) wall downward
Motion, so that children's shoulder belt restraint strap on the outside of barrel is moved backward under the pulling force effect of spring (3), recovers initial shoulder
Band position, so that child passenger body is retracted on backrest.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710288297.XA CN107199986A (en) | 2017-04-27 | 2017-04-27 | A kind of energy absorption device and method for child safety seat restraint strap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710288297.XA CN107199986A (en) | 2017-04-27 | 2017-04-27 | A kind of energy absorption device and method for child safety seat restraint strap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107199986A true CN107199986A (en) | 2017-09-26 |
Family
ID=59905915
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710288297.XA Pending CN107199986A (en) | 2017-04-27 | 2017-04-27 | A kind of energy absorption device and method for child safety seat restraint strap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107199986A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107672554A (en) * | 2017-10-30 | 2018-02-09 | 梧州学院 | A kind of double-deck stepwise gradient energy absorption device |
| CN109481268A (en) * | 2018-11-09 | 2019-03-19 | 安徽爱就爱家具制造有限公司 | A kind of adjustable massage seat of household |
| CN109682525A (en) * | 2019-01-23 | 2019-04-26 | 中国人民解放军国防科技大学 | Sensor device for passively measuring shock wave energy based on combined aluminum honeycomb |
| CN109795380A (en) * | 2019-03-22 | 2019-05-24 | 清华大学苏州汽车研究院（相城） | A kind of supporting leg and child safety seat of child safety seat |
| CN112677916A (en) * | 2019-10-17 | 2021-04-20 | 通用汽车环球科技运作有限责任公司 | Detection sensing device for upper and lower LATCH fasteners |
| CN115158119A (en) * | 2022-06-24 | 2022-10-11 | 上汽通用五菱汽车股份有限公司 | Safety belt structure for dynamic protection of children and automobile child seat |
| CN115214528A (en) * | 2022-07-13 | 2022-10-21 | 宁波均胜汽车安全系统有限公司 | Force limiting buffer mechanism and safety belt lock catch pair assembly |
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| CN1421343A (en) * | 2002-12-26 | 2003-06-04 | 湖南大学 | Automobile collision guard method and energy-absorbing buffer |
| CN102182786A (en) * | 2011-04-21 | 2011-09-14 | 中国人民解放军63983部队 | Pull rod with bidirectional buffer action |
| CN102644688A (en) * | 2012-04-24 | 2012-08-22 | 北京航空航天大学 | Landing mechanism-based legged mechanical cushioning device |
| US20150175035A1 (en) * | 2013-03-11 | 2015-06-25 | Inspired Products Group, LLC | Child Safety Seat With Shock Absorber Having Compression-Type Soft Material Resillient Member |
| CN204821213U (en) * | 2015-08-10 | 2015-12-02 | 上海童璨婴童用品有限公司 | Energy -absorbing device of children's safety seat and children's safety seat of adoption energy -absorbing device |
| CN105620416A (en) * | 2016-01-28 | 2016-06-01 | 好孩子儿童用品有限公司 | Safety belt energy absorption device and automobile seat for children |
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2017
- 2017-04-27 CN CN201710288297.XA patent/CN107199986A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1421343A (en) * | 2002-12-26 | 2003-06-04 | 湖南大学 | Automobile collision guard method and energy-absorbing buffer |
| CN102182786A (en) * | 2011-04-21 | 2011-09-14 | 中国人民解放军63983部队 | Pull rod with bidirectional buffer action |
| CN102644688A (en) * | 2012-04-24 | 2012-08-22 | 北京航空航天大学 | Landing mechanism-based legged mechanical cushioning device |
| US20150175035A1 (en) * | 2013-03-11 | 2015-06-25 | Inspired Products Group, LLC | Child Safety Seat With Shock Absorber Having Compression-Type Soft Material Resillient Member |
| CN204821213U (en) * | 2015-08-10 | 2015-12-02 | 上海童璨婴童用品有限公司 | Energy -absorbing device of children's safety seat and children's safety seat of adoption energy -absorbing device |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107672554A (en) * | 2017-10-30 | 2018-02-09 | 梧州学院 | A kind of double-deck stepwise gradient energy absorption device |
| CN107672554B (en) * | 2017-10-30 | 2023-06-27 | 梧州学院 | Double-layer graded gradient energy absorbing device |
| CN109481268A (en) * | 2018-11-09 | 2019-03-19 | 安徽爱就爱家具制造有限公司 | A kind of adjustable massage seat of household |
| CN109682525A (en) * | 2019-01-23 | 2019-04-26 | 中国人民解放军国防科技大学 | Sensor device for passively measuring shock wave energy based on combined aluminum honeycomb |
| CN109682525B (en) * | 2019-01-23 | 2019-10-08 | 中国人民解放军国防科技大学 | Sensor device for passively measuring shock wave energy based on combined aluminum honeycomb |
| CN109795380A (en) * | 2019-03-22 | 2019-05-24 | 清华大学苏州汽车研究院（相城） | A kind of supporting leg and child safety seat of child safety seat |
| CN109795380B (en) * | 2019-03-22 | 2024-05-17 | 清华大学苏州汽车研究院（相城） | Supporting leg of child safety seat and child safety seat |
| CN112677916A (en) * | 2019-10-17 | 2021-04-20 | 通用汽车环球科技运作有限责任公司 | Detection sensing device for upper and lower LATCH fasteners |
| CN112677916B (en) * | 2019-10-17 | 2022-12-27 | 通用汽车环球科技运作有限责任公司 | Detection sensing device for use of upper and lower LATCH fasteners |
| CN115158119A (en) * | 2022-06-24 | 2022-10-11 | 上汽通用五菱汽车股份有限公司 | Safety belt structure for dynamic protection of children and automobile child seat |
| CN115158119B (en) * | 2022-06-24 | 2023-08-04 | 上汽通用五菱汽车股份有限公司 | Safety belt structure for dynamic protection of children and automobile child seat |
| CN115214528A (en) * | 2022-07-13 | 2022-10-21 | 宁波均胜汽车安全系统有限公司 | Force limiting buffer mechanism and safety belt lock catch pair assembly |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170926 |
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| RJ01 | Rejection of invention patent application after publication |