CN204136932U - A kind of car belt - Google Patents
A kind of car belt Download PDFInfo
- Publication number
- CN204136932U CN204136932U CN201420561525.8U CN201420561525U CN204136932U CN 204136932 U CN204136932 U CN 204136932U CN 201420561525 U CN201420561525 U CN 201420561525U CN 204136932 U CN204136932 U CN 204136932U
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- CN
- China
- Prior art keywords
- tensioner
- cylinder
- mount pad
- mortise lock
- ball end
- 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.)
- Expired - Fee Related
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- Automotive Seat Belt Assembly (AREA)
Abstract
The utility model discloses a kind of car belt, belong to vehicle security system manufacturing technology field.Described car belt comprises taking-up device, guide, pre-tensioner mortise lock, pre-tensioning device, waistband, shoulder belt, mount pad, guide ring; Described pre-tensioner mortise lock is connected with steel rope with between pre-tensioning device, and described pre-tensioner mortise lock connects waistband and shoulder belt; Described pre-tensioning device comprises cylinder, piston, gas generator, one-way clutch; Described one-way clutch is arranged on cylinder interior, and described one-way clutch comprises ball end and three wedge blocks; Described wedge block is distributed between cylinder inner wall and ball end; Described mount pad is hollow cavity structure; Described cylinder and gas generator are fixed on mount pad, by mount pad, cylinder are communicated with gas generator.It is higher that the utility model has pre-tightening efficiency, the advantage of better reliability, and easy to assembly, and production efficiency is high, and cost is low, and structure is more firm.
Description
Technical field
The utility model belongs to vehicle security system manufacturing technology field, specifically, relates to a kind of car belt.
Background technology
At present, automobile safety is more and more subject to customer and car manufacturer attention.Successively have the appearance such as emergency latching type safety belt coiler, safety air bag, vehicle security system is gradually improved, and proposes requirements at the higher level to the cooperation between safety strap and safety air bag simultaneously.
Conventional security band produces locking action when anxious deceleration occurs vehicle, and now belt restraints occupant, avoids occupant to clash into steering hardware or Windshield.Safety air bag when vehicle generation severe crash air bag moment inflation, trunk and the head of occupant hit air bag, air bag absorbing impact energy thus protection occupant.We notice the process that safety air bag has an inflation and releases energy.Two condition guarantee occupant safeties below must meeting when occupant hits air bag: one is that inflation fault offset is complete, and air bag is in maximum expanded state.If when occupant hits air bag, air bag is in inflation and releases energy state, and the air bag of expansion likely brings injury to occupant.Two be occupant when hitting air bag safety belt restraining system absorb portion of energy.If Impact energy is all applied on air bag also may bring injury to occupant.Does is the factor affecting above-mentioned condition: the whether correct wear safety belt of occupant? as occupant pursues comfort, make seatbelt wearing too lax; Or the factors such as the thicker and individual difference of occupant's dress cause between safety strap and occupant exists gap, and this gap is exactly potential safety hazard, will cause safety air bag can not general protection occupant.
Utility model content
The utility model provides a kind of car belt, its objective is when vehicle generation severe crash, can automatic tightening safety strap, to eliminate the gap between occupant and safety strap, coordinates safety air bag to provide comprehensive protection for occupant.
To achieve these goals, the technical scheme that the utility model is taked is:
Car belt provided by the utility model, comprises taking-up device, guide, pre-tensioner mortise lock, pre-tensioning device, waistband, shoulder belt, mount pad, guide ring, it is characterized in that: described pre-tensioner mortise lock is connected with steel rope with between pre-tensioning device; Described pre-tensioner mortise lock is connected with waistband and shoulder belt by safety belt buckle; Described pre-tensioning device comprises cylinder, piston, gas generator, one-way clutch; Described one-way clutch is arranged on cylinder interior, and described one-way clutch comprises ball end and three wedge blocks; Described wedge block is distributed between cylinder inner wall and ball end; Described mount pad is hollow cavity structure; Described cylinder and gas generator are fixed on mount pad, by mount pad, cylinder are communicated with gas generator.
Described steel rope one end through piston and ball end, and is fixed on ball end, and the other end is connected with pre-tensioner mortise lock through guide ring.
Described guide ring is provided with mounting hole, for pre-tensioner mortise lock is arranged on automotive seat.
Described mount pad and guide ring are fixedly clamped in aggregates by two pieces of sheetmetals.
Technical scheme provided by the utility model, effectively can solve owing to adopting conventional security band, cause between safety strap and occupant and there is gap, causes safety air bag can not the technical matters such as general protection occupant.When there is severe traffic accidents in vehicle, pre-tensioner mortise lock of the present utility model produces predetermincd tension instantaneously by pre-tensioning device, tightens up waistband and shoulder belt simultaneously, eliminates the gap between wearer and safety strap.Because in pre-tightening safety strap process, waistband and shoulder belt are tightened up simultaneously, predetermincd tension directly acts on chest and the waist of occupant, thus its to tighten up efficiency higher, better reliability.Free-wheel clutch involved by the utility model have employed ball end and wedge block, and have easy to assembly, production efficiency is high, and cost is low, and structure more firmly advantage.
Accompanying drawing explanation
Below the content expressed by each width accompanying drawing of this specification sheets and the mark in figure are briefly described:
The mounting arrangements schematic diagram that Fig. 1 is safety strap shown in the utility model;
The inner structure schematic diagram that Fig. 2 is pre-tensioning device shown in the utility model;
Fig. 3 is the structural representation of one-way clutch shown in the utility model;
Fig. 4 is the utility model detonation configuration schematic diagram.
Be labeled as in figure:
1, pre-tensioner mortise lock, 2, waistband, 3, shoulder belt, 4, taking-up device, 5, guide, 6, cylinder, 7, piston, 8, ball end, 9, wedge block, 10, gas generator, 11, guide ring, 12, sheetmetal, 14, mounting hole, 15, steel rope, 16, mount pad.
Detailed description of the invention
Contrast accompanying drawing below, by the description to embodiment, detailed description of the invention of the present utility model is described in further detail, have more complete, accurate and deep understanding to help those skilled in the art to inventive concept of the present utility model, technical scheme.
Structure of the present utility model expressed as shown in Figure 1 to Figure 4, is a kind of car belt, comprises taking-up device 4, guide 5, pre-tensioner mortise lock 1, pre-tensioning device, waistband 2, shoulder belt 3, mount pad 16, guide ring 11.
Overcome its defect in order to the current known technology Problems existing that solves described in this specification sheets background technology part; realize the pre-tightening function of safety strap; normally after auto against; before safety air bag is opened completely; safety strap energy automatic tightening, thus occupant is fixed on the seat, to improve the protection to occupant; for reaching this goal of the invention, the technical scheme that the utility model is taked is:
As shown in Figures 1 to 4, pre-tensioner mortise lock 1 described in the utility model is connected with flexible wire ropes 15 with between pre-tensioning device; Described pre-tensioner mortise lock is connected with waistband and shoulder belt by safety belt buckle; Pre-tensioning device is made up of the cylinder 6 of tape guide effect, piston 7, gas generator 10, and when a fault occurs, gas generator 10 produces a large amount of gas push piston 7 and moves in cylinder 6, pulls pre-tensioner mortise lock 1, tighten up safety strap by steel rope 15.Pre-tensioning device also requires after completing pretension function that pre-tensioner mortise lock 1 has latch functions and continues retrain and protect occupant.This requires that piston 7 moves along the direction of tightening up safety strap in cylinder 6, and reversing sense motion should be in lockup state.For this reason, an one-way clutch is increased in piston 7 front portion.Arrangement of clutch is made up of a ball end 8 and three wedge blocks 9.Wedge block 9 is distributed in ball end 8 surface, wedge shape space is formed on the bulb surface of ball end 8, when piston 7 promote ball end 8 move to pretension direction time, ball end 8 enters large end from the small end of wedge shape space, so piston 7 can promote ball end 8, wedge block 9 moves along pretension direction.Reversing sense, when ball end 8 enters small end from the large end of wedge shape space, ball end 8, wedge block 9 and cylinder 6 produce self-locking, make pre-tensioner mortise lock 1 be in lockup state.
Figure 1 shows that the fitting arrangement of car belt.Pre-tensioner mortise lock 1 connects waistband 2 and shoulder belt 3 as can be seen from Figure, tightens up pre-tensioner mortise lock 1 and can tighten up shoulder belt 3 and waistband 2 simultaneously.And in other technical scheme, pre-tensioning device is arranged on taking-up device 4 inner, only walk around guide 5 when tightening up and tighten up shoulder belt 3.Two kinds of Method compare, tighten up the reliability of shoulder belt 3 and waistband 2 by pre-tensioner mortise lock 1 simultaneously and efficiency is significantly improved.
Figure 2 shows that the inner structure of pre-tensioning device.Be furnished with piston 7, ball end 8 and three wedge blocks 9 in the cylinder 6 with certain length, the length of cylinder 6 determines the stroke of piston 7.Mount pad 16 is cavity body structures of a hollow, and one end is connected with cylinder 6, other end installing gas producer 10.Steel rope 15 one end through piston 7 and ball end 8, and is fixed on ball end 8, and the other end is connected with pre-tensioner mortise lock 1 through guide ring 11.Mount pad 16, steel rope 15, guide ring 11 and pre-tensioner mortise lock 1 are fixedly clamped by two sheetmetals 12, guide ring 11 have mounting hole 14 pre-tensioner mortise lock 1 assembly can be installed on the seat.
When there is severe traffic accidents, pre-tensioner mortise lock 1 tightens up safety strap, eliminates the gap between occupant and safety strap; occupant is fixed on the seat instantaneously; wait for that airbag inflated has expanded, safety belt restraining system is correctly coordinated with safety air bag, protection occupant safety.
Pre-tensioner mortise lock 1 effect provided by the utility model is to coordinate with safety air bag, and when there is severe traffic accidents, pre-tensioner mortise lock 1 can tighten up waistband 2 and shoulder belt 3, eliminates the relaxed state of safety strap, protection occupant safety.Produce powered piston 7 by powder gases producer 10 to move in cylinder 6, piston 7 pulls steel rope 15, and steel rope 15 drives pre-tensioner mortise lock 1 to tighten up safety strap.Steel rope 15 one end is through piston 7 and ball end 8, ball end 8 surface distribution three wedge blocks 9, wedge shape space is formed on the bulb surface of ball end 8, such ball end 8, three wedge blocks 9 and cylinder 6 just form one-way clutch, make pre-tensioner mortise lock 1 have unidirectional pretension and unidirectional locking function; Have piston 7, ball end 8 and three wedge blocks 9 in cylinder 6, wedge block 9 is distributed between cylinder 6 inwall and ball end 8, forms one-way clutch.Steel rope 15 one end is also fixed with it through piston 7 and ball end 8, and the other end is connected with pre-tensioner mortise lock 1 through guide ring 11; Mount pad 16 is cavity body structures of a hollow, and cylinder 6 and gas generator 10 are fixed on mount pad 16, by mount pad 16, cylinder 6 are communicated with gas generator 10; Guide ring 11 there is mounting hole 14 for installing on the seat by pre-tensioner mortise lock 1; Mount pad 16 and guide ring 11 are fixedly clamped in aggregates by two pieces of sheetmetals 12.
The utility model compared with prior art, can when automobile collides, and pre-tightening waistband and shoulder belt, have pre-tightening efficiency higher, the advantage of better reliability simultaneously; In addition, pre-tensioning device of the present utility model have employed the mechanism of ball end and wedge, and have easy to assembly, production efficiency is high, and cost is low, and structure is advantage more firmly.
By reference to the accompanying drawings the utility model is exemplarily described above; obvious the utility model specific implementation is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present utility model is conceived and technical scheme is carried out; or design of the present utility model and technical scheme directly applied to other occasion, all within protection domain of the present utility model without to improve.
Claims (4)
1. a car belt, comprise taking-up device (4), guide (5), pre-tensioner mortise lock (1), pre-tensioning device, waistband (2), shoulder belt (3), mount pad (16), guide ring (11), it is characterized in that: described pre-tensioner mortise lock (1) is connected with steel rope (15) with between pre-tensioning device; Described pre-tensioner mortise lock (1) is connected with waistband (2) and shoulder belt (3) by safety belt buckle; Described pre-tensioning device comprises cylinder (6), piston (7), gas generator (10), one-way clutch; It is inner that described one-way clutch is arranged on cylinder (6), and described one-way clutch comprises ball end (8) and three wedge blocks (9); Described wedge block (9) is distributed between cylinder (6) inwall and ball end (8); Described mount pad (16) is hollow cavity structure; Described cylinder (6) and gas generator (10) are fixed on mount pad (16), by mount pad (16), cylinder (6) are communicated with gas generator (10).
2. a kind of car belt according to claim 1, it is characterized in that: described steel rope (15) one end is through piston (7) and ball end (8), and being fixed on ball end (8), the other end is connected with pre-tensioner mortise lock (1) through guide ring (11).
3. a kind of car belt according to claim 1, is characterized in that: described guide ring (11) is provided with mounting hole (14), for pre-tensioner mortise lock (1) is arranged on automotive seat.
4. a kind of car belt according to claim 1, is characterized in that: described mount pad (16) and guide ring (11) are fixedly clamped in aggregates by two pieces of sheetmetals (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420561525.8U CN204136932U (en) | 2014-09-20 | 2014-09-20 | A kind of car belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420561525.8U CN204136932U (en) | 2014-09-20 | 2014-09-20 | A kind of car belt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204136932U true CN204136932U (en) | 2015-02-04 |
Family
ID=52413640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420561525.8U Expired - Fee Related CN204136932U (en) | 2014-09-20 | 2014-09-20 | A kind of car belt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204136932U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111516636A (en) * | 2019-02-04 | 2020-08-11 | 丰田自动车株式会社 | Seat belt device for vehicle |
-
2014
- 2014-09-20 CN CN201420561525.8U patent/CN204136932U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111516636A (en) * | 2019-02-04 | 2020-08-11 | 丰田自动车株式会社 | Seat belt device for vehicle |
| CN111516636B (en) * | 2019-02-04 | 2022-06-24 | 丰田自动车株式会社 | Seat belt device for vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150204 Termination date: 20180920 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |