CN2663232Y - Rotating clutch type pretension apparatus of automobile safety belt - Google Patents
Rotating clutch type pretension apparatus of automobile safety belt Download PDFInfo
- Publication number
- CN2663232Y CN2663232Y CN 200320107965 CN200320107965U CN2663232Y CN 2663232 Y CN2663232 Y CN 2663232Y CN 200320107965 CN200320107965 CN 200320107965 CN 200320107965 U CN200320107965 U CN 200320107965U CN 2663232 Y CN2663232 Y CN 2663232Y
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- China
- Prior art keywords
- locking tooth
- mandrel
- ring rotation
- rotation plug
- die casting
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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.)
- Expired - Fee Related
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- Automotive Seat Belt Assembly (AREA)
Abstract
The utility model discloses a car seat belt system adopting rotating clutching type car belt pre-tension device, which is characterized in that the clutching mechanism consists of a ring shaped rotating plug, a locking tooth and a core axis ratchet wheel; the space formed between the ring shaped rotating plug and the core axis ratchet wheel is provided with the locking tooth; the locking tooth are rotatabely fitted on a plastic pin which is positioned at a base; ring shaped rotating plug presses on the plastic pin on the base used for positioning; the core axis ratchet wheel is covered on the core axis of a retractor; the driving mechanism is a gas generator which is fixed with a die-casting machine to serve as the conduit for guiding the gas; the clutching mechanism is arranged in the die-casting machine; the die-casting machine us sealing matched with the ring shaped rotating plug. The utility model has the advantages of compact structure, reliable movement, small volume, small energy loss, high driving efficiency, convenient to be mounted in the car B pillar; at the same time, the whole pre-tension mechanism has good air tightness so that the gas energy is not easy to leak and the energy conversing efficiency is high.
Description
Technical field
The utility model relates to a kind of ribbon retractor mechanism that is used for the car belt system, specifically a kind of a kind of pre-tensioning device that is used for automobile seat safety belt system.
Background technology
Along with developing rapidly of auto-industry; automobile seat safety belt system is more and more extensively paid attention to by people occupant's protective capability; In-particular its when collision happens; the occupant is because of before the relative automobile of inertia moves forward; belt tensioning mechanism can in time work, reclaims and the tensioning ribbon, thus the binding effect of raising safety strap; therefore, have the belt system of pre-stretching device by more and more as to adopt.In the pre-stretching device of more existing safety strap, exist weak point to have: safety strap is in pre-tensioning process, owing to reasons such as gas leakage, mechanism kinematic unreasonable structure cause degradation of energy excessive, thereby reduced pre-tensioned effect, other belt systems are owing to adopt pre-stretching device, cause the Webbing retractor size, volume increases greatly, often produces taking-up device and can't be installed into the interior problem of automobile B-column.
The purpose of this utility model is in order to overcome the deficiencies in the prior art, a kind of compact conformation to be provided, and volume is little, and is reliable and stable, and degradation of energy is little, the pre-high rotation disengaging type car belt pre-tensioning device of tensioning usefulness.
For finishing above-mentioned purpose, the technical solution adopted in the utility model is: a kind of rotation disengaging type car belt pre-tensioning device, comprise driver train, engaging and disengaging gear and be fixed in base on the taking-up device framework, be characterized in, engaging and disengaging gear is by the ring rotation plug, the locking tooth, the mandrel ratchet is formed, by in the annular space that forms between ring rotation plug and the mandrel ratchet locking tooth being arranged, being sleeved on the plastic pin that places on the base of locking tooth normal-running fit, the plastic pin that be used to locate of ring rotation plug roof pressure on base, the mandrel ratchet sleeve is contained on the mandrel of taking-up device, driver train is a gas generator, with the conduit composition that the die casting body is solidified as a whole and uses as gas flow guiding, engaging and disengaging gear is installed in the die casting body, and die casting body and ring rotation plug are sealed and matched.
Driver train also can be made up of with conduit and a plurality of drive ball that comes of the split of die casting body gas generator.Conduit also can be bending.The mandrel ratchet also can fix as one with the taking-up device mandrel.The locking tooth be one or the symmetry two place in the ring rotation plug cavity.
The beneficial effects of the utility model are: adopt the ring rotation plug, the locking tooth, form engaging and disengaging gear around the mandrel ratchet that mandrel rotates, the ring rotation plug just can drive the locking tooth once rotation and be meshed with the mandrel ratchet, whole engaging and disengaging gear compact conformation, reliable in action, volume is little, degradation of energy is little, the drive efficiency height, therefore adopt the volume of taking-up device of this pre-stretching device also smaller, can be easily installed in the sedan B-post, simultaneously, high pressure gas through multi-sealed be the seamless pipeline of die casting body and being sealed and matched of a plurality of spheroids, being sealed and matched of the annular chamber of ring rotation plug and die casting body, thereby whole pre-stretching device has good air-tightness, gas energy is difficult for leaking the energy conversion efficiency height.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is embodiment 1 structural representation.
Fig. 3 is embodiment 2 structural representations.
The specific embodiment
The utility model is described in detail in conjunction with the accompanying drawings.
Shown in Fig. 1-2, rotation disengaging type car belt pre-tensioning device, comprise driver train, engaging and disengaging gear and be fixed in base on the taking-up device framework, be characterized in, engaging and disengaging gear is by ring rotation plug 4, locking tooth 5, mandrel ratchet 6 is formed, by being equipped with locking tooth (5) in the annular space that forms between ring rotation plug (4) and the mandrel ratchet (6), being sleeved on the plastic pin (9) that places on the base (7) of locking tooth (5) normal-running fit, ring rotation plug (4) roof pressure is at the plastic pin that is used to locate (8) that places on the base (7), mandrel ratchet (6) is sleeved on the mandrel of taking-up device, driver train is gas generator (1), with conduit (10) composition that die casting body (3) is solidified as a whole and uses as gas flow guiding, engaging and disengaging gear places in the die casting body (3), and die casting body (3) is sealed and matched with ring rotation plug (4).
Embodiment 1: according to shown in Figure 2: engaging and disengaging gear comprises a ring rotation plug 4, a locking tooth 5 and a mandrel ratchet 6; Driver train comprises the conduit 10 on a gas generator 1 and the die casting body 3, and engaging and disengaging gear is installed in the die casting body 3, is fixed on the taking-up device framework by plastic feet 7.Mandrel ratchet 6 is fixed together with the taking-up device mandrel, and along with mandrel rotates.Under the confined state, ring rotation plug 4 roof pressures are realized the location on the plastic pin on the plastic feet 78; Locking tooth 5 in the engaging and disengaging gear is installed on another plastic pin 9 of plastic feet 7, and can rotate around plastic pin 9.Usually under the state, locking tooth 5 is also blocked by plastic pin 8, do not contact with mandrel ratchet 6, so mandrel can rotate freely, and is not subjected to the constraint of pre-stretching device.Mandrel ratchet 6 is independent part, also can with the affixed one of taking-up device mandrel.
Embodiment 2: according to shown in Figure 3 be another embodiment of the present utility model, among this embodiment, engaging and disengaging gear is identical with embodiment 1, driver train comprises a gas generator 1, several come drive ball 2 together, comprise that also being used on the die casting body 3 hold the conduit 10 and the engaging and disengaging gear of drive ball and be installed in the die casting body 3, be fixed on the taking-up device framework by plastic feet 7, under the confined state, the drive ball of below abuts against on the projection of ring rotation plug 4, and the plastic pin 8 of ring rotation plug roof pressure on plastic feet 7 realizes the location; Locking tooth 5 in the engaging and disengaging gear is installed on another plastic pin 9 of plastic feet 7, and can rotate around plastic pin 2.Usually under the state, locking tooth 5 is also blocked by plastic pin 1, do not contact with mandrel ratchet 6, so mandrel can rotate freely, and is not subjected to the constraint of pre-stretching device.The conduit 10 that holds drive ball can be designed to one with die casting body 3, also can be an independent part, therefore conduit is able to longer to hold more drive ball, conduit can also be designed to crooked shape simultaneously, thereby pre-stretching device can have compact more volume and bigger pre-tensioning usefulness.
The working process of embodiment 1 rotation disengaging type car belt pre-tensioning device is: when gas generator 1 has a thermoelectricity circulation out-of-date, gunpowder detonation in the gas generator 1, produce a large amount of high pressure gas, high pressure gas promote ring rotation plug 4 and rotate, because it is very big that high pressure gas promote the moment of ring rotation plug 4 rotations, ring rotation plug 4 can be cut off plastic pin 1 and begin to rotate.Ring rotation plug 4 cooperates with locking tooth 5, ring rotation plug 4 one rotates, can promote locking tooth 5 rotates around plastic pin 2, after locking tooth 5 rotates a low-angle, can mesh together with mandrel ratchet 6, after the engagement, the front end of locking tooth 5 and 6 engagements of mandrel ratchet, the rear end cooperates with the bearing surface of ring rotation plug 4, ring rotation plug 4, locking tooth 5, mandrel ratchet 6 and mandrel are combined into an integral body like this, rotation is quickened under the effect of high pressure gas, thereby the ribbon that drives on the mandrel unrolls, and realizes the pre-tensioning of safety strap.
The working process of embodiment 2 rotation disengaging type car belt pre-tensioning devices is: when gas generator 1 has a thermoelectricity circulation out-of-date, gunpowder detonation in the gas generator 1, produce a large amount of high pressure gas, high pressure gas promote drive ball 2 and move downward along conduit, drive ball 2 promotes 4 rotations of ring rotation plug again, because it is very big to promote the moment of ring rotation plug 4 rotations, ring rotation plug 4 can be cut off plastic pin 8 and begin to rotate.Ring rotation plug 4 cooperates with locking tooth 5, ring rotation plug 4 one rotates, can promote locking tooth 5 rotates around plastic pin 9, after locking tooth 5 rotates a low-angle, can mesh together with mandrel ratchet 6, after the engagement, the front end of locking tooth 5 and 6 engagements of mandrel ratchet, the rear end cooperates with the bearing surface of ring rotation plug 4, drive ball 2, ring rotation plug 4, locking tooth 5, mandrel ratchet 6 and mandrel are combined into an integral body like this, rotation is quickened under the effect of high pressure gas, thereby the ribbon that drives on the mandrel unrolls, and realizes the pre-tensioning of safety strap.
Claims (5)
1. one kind is rotated disengaging type car belt pre-tensioning device, comprise driver train, engaging and disengaging gear and be fixed in base on the taking-up device framework, it is characterized in that, engaging and disengaging gear is by ring rotation plug (4), locking tooth (5), mandrel ratchet (6) is formed, by being equipped with locking tooth (5) in the annular space that forms between ring rotation plug (4) and the mandrel ratchet (6), being sleeved on the plastic pin (9) that places on the base (7) of locking tooth (5) normal-running fit, ring rotation plug (4) roof pressure is at the plastic pin that is used to locate (8) that places on the base (7), mandrel ratchet (6) is sleeved on the mandrel of taking-up device, driver train is gas generator (1), form with die casting body (3) conduit of using as gas flow guiding (10) that is solidified as a whole, engaging and disengaging gear places in the die casting body (3), and die casting body (3) is sealed and matched with ring rotation plug (4).
2. according to the described rotation disengaging type of claim 1 car belt pre-tensioning device, it is characterized in that described driver train is made up of with conduit (10) and a plurality of drive ball that comes (2) of die casting body (3) split gas generator (1).
3. according to the described rotation disengaging type of claim 2 car belt pre-tensioning device, it is characterized in that described conduit (10) is a bending.
4. according to the described rotation disengaging type of claim 1 car belt pre-tensioning device, it is characterized in that described mandrel ratchet (6) fixes as one with the taking-up device mandrel.
5. according to the described rotation disengaging type of claim 1 car belt pre-tensioning device, it is characterized in that, described locking tooth (5) be one or the symmetry two place in ring rotation plug (4) cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320107965 CN2663232Y (en) | 2003-11-13 | 2003-11-13 | Rotating clutch type pretension apparatus of automobile safety belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320107965 CN2663232Y (en) | 2003-11-13 | 2003-11-13 | Rotating clutch type pretension apparatus of automobile safety belt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2663232Y true CN2663232Y (en) | 2004-12-15 |
Family
ID=34342443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320107965 Expired - Fee Related CN2663232Y (en) | 2003-11-13 | 2003-11-13 | Rotating clutch type pretension apparatus of automobile safety belt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2663232Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100387464C (en) * | 2005-01-06 | 2008-05-14 | 株式会社东海理化电机制作所 | Webbing retractor |
| CN100404324C (en) * | 2005-06-09 | 2008-07-23 | 清华大学 | Pretightened automobile seat safety belt system with stroke enlarging function |
| CN102653266A (en) * | 2011-03-01 | 2012-09-05 | Trw汽车股份有限公司 | Reversible buckle retractor for occupant restraint system of vehicle |
| CN105035019A (en) * | 2015-07-31 | 2015-11-11 | 安徽得力汽车部件有限公司 | Spindle for automobile safety belt |
-
2003
- 2003-11-13 CN CN 200320107965 patent/CN2663232Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100387464C (en) * | 2005-01-06 | 2008-05-14 | 株式会社东海理化电机制作所 | Webbing retractor |
| CN100404324C (en) * | 2005-06-09 | 2008-07-23 | 清华大学 | Pretightened automobile seat safety belt system with stroke enlarging function |
| CN102653266A (en) * | 2011-03-01 | 2012-09-05 | Trw汽车股份有限公司 | Reversible buckle retractor for occupant restraint system of vehicle |
| CN105035019A (en) * | 2015-07-31 | 2015-11-11 | 安徽得力汽车部件有限公司 | Spindle for automobile safety belt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |