CN111301341A - Safety belt pre-tightening device and vehicle - Google Patents
Safety belt pre-tightening device and vehicle Download PDFInfo
- Publication number
- CN111301341A CN111301341A CN202010167636.0A CN202010167636A CN111301341A CN 111301341 A CN111301341 A CN 111301341A CN 202010167636 A CN202010167636 A CN 202010167636A CN 111301341 A CN111301341 A CN 111301341A
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- China
- Prior art keywords
- plate
- tightening
- upright post
- fixing
- safety belt
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- 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
- B60R22/34—Belt retractors, e.g. reels
- B60R22/46—Reels with means to tension the belt in an emergency by forced winding up
-
- 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
- B60R22/34—Belt retractors, e.g. reels
- B60R22/46—Reels with means to tension the belt in an emergency by forced winding up
- B60R2022/4685—Reels with means to tension the belt in an emergency by forced winding up with means to adjust or regulate the tensioning force in relation to external parameters
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automotive Seat Belt Assembly (AREA)
Abstract
The invention discloses a safety belt pre-tightening device and a vehicle, which relate to the technical field of vehicle engineering and comprise the following components: the pre-tightening plate is movably arranged on an upright post inner plate of the vehicle body, an inserting block mechanism is arranged between the pre-tightening plate and the inner side wall of the upright post inner plate, the inserting block mechanism comprises a moving part arranged on the pre-tightening plate and a fixing part arranged on the upright post inner plate, and the moving part and the fixing part are in plug-in fit; the gas generator is fixed on the inner plate of the upright post and is electrically connected with the air bag controller, and the end part of a movable push rod of the gas generator is connected with the pre-tightening plate and can drive the pre-tightening plate to move towards the direction close to the inner plate of the upright post; the pretensioning device drives the pretensioning plate to move through the gas generator when the air bag is started, the woven belt of the safety belt is pressed between the movable part and the fixed part in a plug-in and pull-out matching mode, pretensioning of the safety belt is achieved, and a driver and a passenger are protected from being injured by the air bag.
Description
Technical Field
The invention belongs to the technical field of vehicle engineering, and particularly relates to a safety belt pre-tightening device and a vehicle.
Background
When a vehicle collides, a three-point type seat belt is generally used to restrain a driver and a passenger, to prevent the driver and the passenger from popping out of the vehicle, and to restrain the driver and the passenger on a seat when an airbag is activated, to prevent the driver and the passenger from being injured by the popped-out airbag. However, the conventional seat belt is locked and fixed only by the seat belt retractor with the inertia locking function, and at the moment of vehicle collision, a certain gap margin is still provided between the seat belt and the body of the driver and the passenger more or less, and even if the seat belt retractor has the inertia locking function, the body of the driver and the body of the passenger can still move forward for a certain distance and still have the hidden danger of being injured by the airbag.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a seat belt pre-tightening device and a vehicle.
In order to achieve the above object, the present invention provides a seatbelt pretensioner including:
the pre-tightening plate is movably arranged on an upright post inner plate of the vehicle body, an inserting block mechanism is arranged between the pre-tightening plate and the inner side wall of the upright post inner plate, the inserting block mechanism comprises a moving part arranged on the pre-tightening plate and a fixing part arranged on the upright post inner plate, and the moving part and the fixing part form plug-in type matching;
the gas generator is fixed on the inner plate of the upright post and electrically connected with the air bag controller, and the end part of a movable push rod of the gas generator is connected with the pre-tightening plate and can drive the pre-tightening plate to move towards the direction close to the inner plate of the upright post.
Optionally, the moving portion includes a protrusion disposed on the pretension plate, the fixing portion includes a groove disposed on the pillar inner plate, and the protrusion is matched with the groove in shape.
Optionally, the stand column further comprises an upper fixing plate and a lower fixing plate which are arranged on the inner side of the stand column inner plate; the upper end and the lower end of the pre-tightening plate are respectively connected with the upper fixing plate and the lower fixing plate in a sliding mode.
Optionally, the lower side of the upper fixed plate and the upper side of the lower fixed plate are both provided with slide rails, and the upper end and the lower end of the pre-tightening plate are both provided with slide blocks matched with the slide rails.
Optionally, the end of the sliding rail is provided with a limiting plate.
Optionally, the webbing is inserted between the moving portion and the fixing portion, notches are formed in the upper fixing plate and the lower fixing plate, and the shapes of the notches are matched with the shape of the cross section of the webbing.
Alternatively, the position of the notch is on the same vertical line as the threading position of the webbing between the moving portion and the fixing portion.
Optionally, a gap is provided between an inner wall of the groove and an outer wall of the projection.
Optionally, the number of the moving parts and the number of the fixing parts are equal.
The present invention also provides a vehicle comprising:
the safety belt pre-tightening device is arranged inside a stand column of a vehicle;
the installation area meshbelt wears to locate between safety belt preloading device's removal portion and the fixed part, one end is connected with the safety belt coiler, and the other end is walked around behind the pulley and is set up to the end of pegging graft.
The invention provides a safety belt pre-tightening device and a vehicle, which have the beneficial effects that: the automobile seat belt webbing fixing device is provided with an inserting block mechanism capable of forming inserting and pulling fit between the pretightening plate and the inner plate of the upright post, when a vehicle collides, the pretightening plate can be driven by the gas generator to move towards the outer side of an automobile body, and a section of seat belt webbing can be pressed between the moving part and the fixing part through the inserting and pulling fit between the moving part and the fixing part, so that the length of the seat belt webbing is instantly shortened to a certain length, a driver and a passenger are restrained and fixed more tightly, and the driver and the passenger are effectively prevented from being; the gas generator has short response time and quick response, and can be started when the air bag is started after being electrically connected with the air bag controller, so that the pretension of the safety belt is quickly realized.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout.
Fig. 1 shows a schematic structural view of a seat belt pretensioner according to an embodiment of the present invention.
Description of reference numerals:
1. an upper fixing plate; 2. a lower fixing plate; 3. an upright column inner plate; 4. pre-tightening the plate; 5. a bump; 6. a gas generator; 7. a groove; 8. a seat belt webbing; 9. a seat belt retractor; 10. an outer panel of a vehicle body.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The invention provides a safety belt pre-tightening device, comprising:
the pre-tightening plate is movably arranged on an upright post inner plate of the vehicle body, an inserting block mechanism is arranged between the pre-tightening plate and the inner side wall of the upright post inner plate, the inserting block mechanism comprises a moving part arranged on the pre-tightening plate and a fixing part arranged on the upright post inner plate, and the moving part and the fixing part are in plug-in fit;
the gas generator is fixed on the inner plate of the stand column and electrically connected with the air bag controller, and the end part of a movable push rod of the gas generator is connected with the pre-tightening plate and can drive the pre-tightening plate to move towards the direction close to the inner plate of the stand column.
Specifically, the gas generator is electrically connected with the air bag controller, and the air bag controller is utilized to control the starting of the gas generator while controlling the starting of the air bag, so that the pre-tightening of the safety belt is realized; in other examples, a controller of the pre-tightening device can be independently arranged and used for sensing the collision condition of the vehicle and sending a signal to the pre-tightening device to control the gas generator to start while the air bag is started; the gas generator can be started when the air bag is started when a vehicle collides, the movable push rod is pushed to move by gas generated in the gas generator, the pre-tightening plate is driven to rapidly move towards the outer side of the vehicle body, the moving part is aligned to the fixing part when the pre-tightening plate moves, and the safety belt woven belt between the moving part and the fixing part can be pressed between the moving part and the fixing part through the plug-in matching between the moving part and the fixing part, so that the safety belt woven belt is instantly shortened, the pre-tightening of the safety belt is realized, a driver and a passenger are firmly fixed on the seat, and the driver and the passenger are prevented from being injured due to collision and forward movement under the action; after the pretensioning is finished, the pretensioning plate can be moved in the opposite direction by continuously increasing the acting force on the webbing, and the movable portion and the fixed portion can be pulled out and separated.
Optionally, the moving part includes a protrusion disposed on the pretension plate, and the fixing part includes a groove disposed on the inner plate of the pillar, and the protrusion is matched with the groove in shape.
In other examples, the lug can be arranged on the inner plate of the upright post, the groove is arranged on the pre-tightening plate, and the pre-tightening of the safety belt is realized through the plug-in matching of the lug and the groove.
Optionally, the fixing device further comprises an upper fixing plate and a lower fixing plate which are arranged on the inner side of the column inner plate; the upper end and the lower end of the pre-tightening plate are respectively connected with the upper fixing plate and the lower fixing plate in a sliding manner.
Optionally, the lower side of the upper fixed plate and the upper side of the lower fixed plate are both provided with slide rails, and the upper end and the lower end of the pre-tightening plate are both provided with slide blocks matched with the slide rails.
Specifically, the pre-tightening plate moves between the upper fixing plate and the lower fixing plate by taking the sliding rail as a guide through the matching of the sliding rail and the sliding block, so that the moving part is aligned to the fixing part, and the moving part and the fixing part can be smoothly plugged and pulled out.
Optionally, the end of the sliding rail is provided with a limiting plate.
Specifically, the limiting plate prevents the slider from deviating from the slide rail with the tip shutoff of slide rail, and the limiting plate can be for installing the steel sheet at the slide rail tip.
Optionally, the safety belt meshbelt is worn to locate between removal portion and the fixed part, has all seted up the notch on upper fixed plate and the bottom plate, and the notch shape cooperatees with safety belt meshbelt cross-sectional shape.
Specifically, the size of the notch is slightly larger than the cross-sectional size of the webbing, so that the webbing can slide smoothly in the notch.
Alternatively, the position of the notch is on the same vertical line as the penetrating position of the webbing between the moving portion and the fixing portion.
Specifically, the moving part and the fixing part can play a certain guiding role on the belt webbing, and the belt webbing is prevented from being in contact with other parts on the inner plate of the stand column to generate friction.
Optionally, a gap is provided between the inner wall of the recess and the outer wall of the projection.
Specifically, the gap is arranged so that the projection can smoothly press the webbing into the groove, and the webbing and the projection can be smoothly pulled out of the groove by pulling the webbing afterwards.
Optionally, the number of the moving parts and the number of the fixing parts are equal.
Specifically, the pretensioning amount of the safety belt can be adjusted by adjusting the number of the moving parts on the pretensioning plate and the fixing parts on the inner plate of the upright post.
The present invention also provides a vehicle comprising:
in the safety belt pre-tightening device, the safety belt pre-tightening device is arranged inside the upright post of the vehicle;
the installation area meshbelt wears to locate between safety belt preloading device's removal portion and the fixed part, and one end is connected with the safety belt coiler, and the other end is walked around behind the pulley and is set up to the end of pegging graft.
Specifically, the safety belt pre-tightening device is arranged inside an upright post of the vehicle, and does not occupy the space in the vehicle; the safety belt retractor connected with one end of the safety belt webbing has an inertia locking function, and can lock and fix the safety belt when the safety belt webbing is pulled suddenly.
Examples
As shown in fig. 1, the present invention provides a seatbelt pretensioner including:
the pre-tightening plate 4 is movably arranged on the stand column inner plate 3 of the vehicle body, an inserting block mechanism is arranged between the pre-tightening plate 4 and the inner side wall of the stand column inner plate 3, the inserting block mechanism comprises a moving part arranged on the pre-tightening plate 4 and a fixing part arranged on the stand column inner plate 3, and the moving part and the fixing part form plug-in type matching;
the gas generator 6 is fixed on the stand column inner plate 3 and electrically connected with the air bag controller, and the end part of a movable push rod of the gas generator 6 is connected with the pre-tightening plate 4 and can drive the pre-tightening plate 4 to move towards the direction close to the stand column inner plate 3.
In the embodiment, the moving part comprises a bump 5 arranged on the pretension plate 4, the fixing part comprises a groove 7 arranged on the pillar inner plate 3, and the bump 5 is matched with the shape of the groove 7.
In the embodiment, the fixing device further comprises an upper fixing plate 1 and a lower fixing plate 2 which are arranged on the inner side of the column inner plate 3; the upper end and the lower end of the pretensioning plate 4 are respectively connected with the upper fixing plate 1 and the lower fixing plate 2 in a sliding way.
In this embodiment, the 1 downside of upper fixed plate and the 2 upside of bottom plate all are provided with the slide rail, and 4 upper ends of pretension board and lower extreme all are provided with the slider with slide rail matched with.
In this embodiment, the end of the slide rail is provided with a limiting plate.
In this embodiment, the webbing 8 is inserted between the moving portion and the fixing portion, and the upper fixing plate 1 and the lower fixing plate 2 are both provided with notches, and the shape of the notch matches with the shape of the cross section of the webbing 8.
In the present embodiment, the position of the notch is on the same vertical line as the threading position of the webbing 8 between the moving portion and the fixed portion.
In this embodiment, a gap is provided between the inner wall of the recess 7 and the outer wall of the projection 5.
In this embodiment, the number of the moving parts and the number of the fixing parts are equal.
The present invention also provides a vehicle comprising:
in the safety belt pre-tightening device, the safety belt pre-tightening device is arranged inside the upright post of the vehicle;
the installation area meshbelt 8 wears to locate between safety belt preloading device's removal portion and the fixed part, and one end is connected with safety belt coiler 9, and the other end sets up to the end of pegging graft after walking around the pulley.
In conclusion, when the safety belt pre-tightening device provided by the invention is used, when a vehicle is in violent collision, the air bag controller controls the air bag to start, meanwhile, ignition current is transmitted to the gas generator 6, the gas generator 6 is started, high-pressure gas generated by the explosive in the gas generator 6 pushes the movable push rod of the gas generator 6 to move, the pre-tightening plate 4 is driven to move towards the outer plate 10 of the vehicle body on the outer side of the vehicle body along the tracks on the upper fixing plate 1 and the lower fixing plate 2, meanwhile, the safety belt retractor 9 is locked by inertia to fix the safety belt webbing 8, and the projection 5 presses the safety belt webbing 8 between the projection 5 and the groove 7 into the groove 7; the webbing belt 8 is instantaneously shortened, and the driver and the passenger are quickly fixed on the seat, so that the driver and the passenger are prevented from moving forward and being injured by collision of the ejected airbag. The safety belt pre-tightening device is arranged on the stand column inner plate 3, the arrangement space is sufficient, the bump 5 can play a certain guiding role for the safety belt webbing 8, and unnecessary friction force generated by the contact of the safety belt webbing 8 and other parts on the stand column inner plate 3 is prevented.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (10)
1. A seat belt pretensioner, comprising:
the pre-tightening plate is movably arranged on an upright post inner plate of the vehicle body, an inserting block mechanism is arranged between the pre-tightening plate and the inner side wall of the upright post inner plate, the inserting block mechanism comprises a moving part arranged on the pre-tightening plate and a fixing part arranged on the upright post inner plate, and the moving part and the fixing part form plug-in type matching;
the gas generator is fixed on the inner plate of the upright post and electrically connected with the air bag controller, and the end part of a movable push rod of the gas generator is connected with the pre-tightening plate and can drive the pre-tightening plate to move towards the direction close to the inner plate of the upright post.
2. The seatbelt pretensioner according to claim 1, wherein the moving portion includes a projection provided on the pretensioning plate, and the fixing portion includes a groove provided on the pillar inner plate, the projection being matched in shape to the groove.
3. The seatbelt pretensioner according to claim 1, further comprising an upper fixing plate and a lower fixing plate provided inside the pillar inner panel; the upper end and the lower end of the pre-tightening plate are respectively connected with the upper fixing plate and the lower fixing plate in a sliding mode.
4. The safety belt pretensioning device according to claim 3, wherein the lower side of the upper fixing plate and the upper side of the lower fixing plate are provided with slide rails, and the upper end and the lower end of the pretensioning plate are provided with slide blocks matched with the slide rails.
5. The seatbelt pretensioner according to claim 4, wherein a stopper plate is provided at an end of the slide rail.
6. The seatbelt pretensioner according to claim 3, wherein a seatbelt webbing is inserted between the movable portion and the fixed portion, and wherein the upper and lower fixing plates are formed with notches, the notches having a shape corresponding to a cross-sectional shape of the seatbelt webbing.
7. The seatbelt pretensioner according to claim 6, wherein a position of the notch is on the same vertical line as a penetrating position of the seatbelt webbing between the moving portion and the fixing portion.
8. The seatbelt pretensioner of claim 2, wherein a gap is provided between an inner wall of the groove and an outer wall of the projection.
9. The seatbelt pretensioner according to claim 1, wherein the moving portion and the fixing portion are provided in plural numbers, and the number of the moving portion and the fixing portion is equal.
10. A vehicle, characterized by comprising:
the seatbelt pretensioner of any of claims 1 to 9, which is disposed inside a pillar of a vehicle;
the installation area meshbelt wears to locate between safety belt preloading device's removal portion and the fixed part, one end is connected with the safety belt coiler, and the other end is walked around behind the pulley and is set up to the end of pegging graft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010167636.0A CN111301341B (en) | 2020-03-11 | 2020-03-11 | Safety belt pre-tightening device and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010167636.0A CN111301341B (en) | 2020-03-11 | 2020-03-11 | Safety belt pre-tightening device and vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111301341A true CN111301341A (en) | 2020-06-19 |
| CN111301341B CN111301341B (en) | 2021-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010167636.0A Active CN111301341B (en) | 2020-03-11 | 2020-03-11 | Safety belt pre-tightening device and vehicle |
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| Country | Link |
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| CN (1) | CN111301341B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3442529A (en) * | 1967-04-24 | 1969-05-06 | Robbins Seat Belt Co | Inertia retracting device with weight actuated take-up |
| JPH01240345A (en) * | 1988-03-21 | 1989-09-25 | Honda Motor Co Ltd | Seat belt takeup device |
| CN1085856A (en) * | 1992-07-28 | 1994-04-27 | Trw莱帕有限公司 | The tight bundle device of vehicle safety belt that has belt tightener |
| CN101863260A (en) * | 2010-06-02 | 2010-10-20 | 奇瑞汽车股份有限公司 | Multi-stage safety belt pre-tightening device |
| DE102015202568A1 (en) * | 2015-02-12 | 2016-08-18 | Robert Bosch Gmbh | Belt arrangement for a vehicle |
| CN110450754A (en) * | 2018-05-08 | 2019-11-15 | 通用汽车环球科技运作有限责任公司 | Shoulder strap assembly with self-adapting load limiter |
-
2020
- 2020-03-11 CN CN202010167636.0A patent/CN111301341B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3442529A (en) * | 1967-04-24 | 1969-05-06 | Robbins Seat Belt Co | Inertia retracting device with weight actuated take-up |
| JPH01240345A (en) * | 1988-03-21 | 1989-09-25 | Honda Motor Co Ltd | Seat belt takeup device |
| CN1085856A (en) * | 1992-07-28 | 1994-04-27 | Trw莱帕有限公司 | The tight bundle device of vehicle safety belt that has belt tightener |
| CN101863260A (en) * | 2010-06-02 | 2010-10-20 | 奇瑞汽车股份有限公司 | Multi-stage safety belt pre-tightening device |
| DE102015202568A1 (en) * | 2015-02-12 | 2016-08-18 | Robert Bosch Gmbh | Belt arrangement for a vehicle |
| CN110450754A (en) * | 2018-05-08 | 2019-11-15 | 通用汽车环球科技运作有限责任公司 | Shoulder strap assembly with self-adapting load limiter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111301341B (en) | 2021-05-25 |
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