CN203876708U - Dual-pre-tightening type seat belt retractor - Google Patents
Dual-pre-tightening type seat belt retractor Download PDFInfo
- Publication number
- CN203876708U CN203876708U CN201420302991.4U CN201420302991U CN203876708U CN 203876708 U CN203876708 U CN 203876708U CN 201420302991 U CN201420302991 U CN 201420302991U CN 203876708 U CN203876708 U CN 203876708U
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- CN
- China
- Prior art keywords
- gear
- unilateral bearing
- belt
- ribbon spool
- 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.)
- Withdrawn - After Issue
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- Automotive Seat Belt Assembly (AREA)
Abstract
The utility model provides a dual-pre-tightening type seat belt retractor which comprises a first shaft and a second shaft. The first shaft comprises a first gear, a first woven belt rolling shaft and a pre-tightening device, and the second shaft comprises a second gear and a second woven belt rolling shaft. One end of the first woven belt rolling shaft is sleeved with the first gear, the other end of the first woven belt rolling shaft is connected with the pre-tightening device, one end of the second woven belt rolling shaft is sleeved with the second gear, and the first gear is meshed with the second gear. The second woven belt rolling shaft and the second gear are connected and fixed through a one-way bearing. The second woven belt rolling shaft, the one-way bearing and the second gear are sequentially arranged in a sleeved mode from inside to outside. The dual-pre-tightening type seat belt retractor has the advantages that a waist belt and a belly belt of a seat belt can be pre-tightened at the same time only through one seat belt retractor, and compared with a frequently-used one-way retractor in the prior art or the mode of achieving the dual-pre-tightening effect by additionally arranging a pre-tightening device at the buckling position of the one-way retractor and the seat belt, the dual-pre-tightening type seat belt retractor is simple in layout and low in cost.
Description
Technical field
The invention belongs to vehicle safety field, especially relates to a kind of two belt with pre-load device taking-up devices.
Background technology
The feature of belt with pre-load device is; when running car is in the moment having an accident, belt with pre-load device can first be strained ribbon in the time that occupant not yet moves forward, and occupant is tightly tied up on the seat; then locking ribbon prevents occupant's forward lean, effectively protects occupant's safety.Desirable firmly beforehand means is shoulder belt and waistband to be tightened up simultaneously simultaneously, and occupant's posture is the most stable like this.
Traditional type pretension limiter Webbing retractor only can be realized shoulder belt pretension, and occupant's pelvis can be to front slide in impact moment, causes larger injury; If realize shoulder belt and waistband pretension simultaneously, need to increase snap close pretension, cost can improve greatly.
Summary of the invention
The invention provides a kind of two belt with pre-load device taking-up device.
For solving the problems of the technologies described above, the technical scheme that the invention adopts is: a kind of two belt with pre-load device taking-up devices, comprise the first axle and the second axle, described the first axle comprises the first gear, the first ribbon spool and pre-tightening apparatus, and described the second axle comprises the second gear and the second ribbon spool; One end of described the first ribbon spool is set with the first gear, and the other end is connected with pre-tightening apparatus, and one end of described the second ribbon spool is set with the second gear, and described the first gear and the second gear are meshed; Described the second ribbon spool and the second gear are connected and fixed by unilateral bearing, and described the second ribbon spool, unilateral bearing, the second gear are sheathed successively from inside to outside.
Preferably, described the first ribbon spool is fixedly connected with by flat key with the first gear; Described the second ribbon spool and unilateral bearing are connected and fixed by flat key, and described unilateral bearing is fixedly connected with by flat key with the second gear.
Preferably, described unilateral bearing comprises unilateral bearing outer shroud, unilateral bearing star-wheel and roller; The outer ring inner surface of described unilateral bearing is tubular; Described unilateral bearing star-wheel outside face is provided with at least one and is with sloping projection; Described roller is fixed on projection and is fixed on the another side relative with the slope of projection; Described unilateral bearing exterior ring cap is contained in outside unilateral bearing star-wheel, described roller and unilateral bearing star-wheel and unilateral bearing outer shroud close contact.
A seat belt apparatus that adopts two belt with pre-load device taking-up devices, comprises the first guide ring, taking-up device, the second guide ring, safety belt buckle and ribbon; One end of described ribbon is sleeved on the first ribbon spool of taking-up device, is connected successively with the first guide ring, safety belt buckle and the second guide ring, and the other end of described ribbon is sleeved on the second ribbon spool of taking-up device.
Advantage and good effect that the invention has are: pretension when only realizing the waistband of safety strap and abdominal belt by a Webbing retractor, with unidirectional taking-up device conventional in prior art or install pre-tightening apparatus additional by unidirectional taking-up device and safety belt buckle place and realize two pretension effects and compare, the present invention arranges simply, with low cost, reduce the damage of occupant in collision case.
Brief description of the drawings
Fig. 1 is the structural representation of the invention;
Fig. 2 is a kind of safety strap principle schematic that adopts the invention;
Fig. 3 is a kind of safety belt structure schematic diagram that adopts the invention;
Fig. 4 is the invention the first Axile connection structure;
Fig. 5 is the invention the second Axile connection structure front elevation;
Fig. 6 is the invention second week connection structure lateral plan;
Fig. 7 is one-direction bearing structure schematic diagram;
In figure: 1-the first axle, 11-the first gear, 12-the first ribbon spool, 13-pre-tightening apparatus, 2-the second axle, 21-the second gear, 22-the second ribbon spool, 3-flat key, 4-unilateral bearing, 41-unilateral bearing outer shroud, 42-unilateral bearing star-wheel, 43-roller, 5-the first guide ring, 6-the second guide ring, 7-ribbon, 8-safe block button.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the invention is elaborated.
As shown in Fig. 1,4,5 and 6, a kind of two belt with pre-load device taking-up device, comprise the first axle 1 and the second axle 2, described the first axle 1 comprises the first gear 11, the first ribbon spool 12 and pre-tightening apparatus 13, and described the second axle 2 comprises the second gear 21 and the second ribbon spool 22; One end of described the first ribbon spool 12 is set with the first gear 11, and the other end is connected with pre-tightening apparatus 13, and one end of described the second ribbon spool 22 is set with the second gear 21, and described the first gear 11 and the second gear 12 are meshed; Described the second ribbon spool 22 and the second gear 21 are connected and fixed by unilateral bearing 4, and described the second ribbon spool 22, unilateral bearing 4, the second gear 21 are sheathed successively from inside to outside.
Described the first ribbon spool 12 is fixedly connected with by flat key 3 with the first gear 11; Described the second ribbon spool 22 and unilateral bearing 4 are connected and fixed by flat key 3, and described unilateral bearing 4 is fixedly connected with by flat key 3 with the second gear 21.
As shown in Figure 7, described unilateral bearing 4 comprises unilateral bearing outer shroud 41, unilateral bearing star-wheel 42 and roller 43; Described unilateral bearing outer shroud 41 inside faces are tubular; Described unilateral bearing star-wheel 42 outside faces are provided with at least one and are with sloping projection; Described roller 43 is fixed on projection and is fixed on the another side relative with the slope of projection; Described unilateral bearing outer shroud 41 is sleeved on outside unilateral bearing star-wheel 42, described roller 43 and unilateral bearing star-wheel 42 and unilateral bearing outer shroud 41 close contacts.
As shown in Figure 2,3, a kind of seat belt apparatus that adopts two belt with pre-load device taking-up devices, comprises the first guide ring 5, taking-up device 10, the second guide ring 6, safety belt buckle 8 and ribbon 7; One end of described ribbon 7 is sleeved on the first ribbon spool 12 of taking-up device 10, is connected successively with the first guide ring 5, safety belt buckle 8 and the second guide ring 6, and the other end of described ribbon 7 is sleeved on the second ribbon spool 22 of taking-up device 10.
In the time that pre-tightening apparatus is had an effect, the first axle 1 starts left-hand revolution, by intermeshing the first gear 11 and the second gear 21, rotation is delivered to the second axle 2, makes the second axle 2 start clickwise, now shrink simultaneously at ribbon 7 two ends, reaches the effect of while pretension shoulder belt and waistband.Because the second gear 21 is connected by unilateral bearing 4 with the second ribbon spool 22, in the time that the second gear 21 left-hand revolutions are ribbon pull-out, can not drive the second ribbon spool 22, facilitate occupant's safe wearing.
The pre-tightening apparatus relating in the technical program is can realize the tension force that gives safety strap abundance as object, for seat belt apparatus field common technique, the preferential ball belt with pre-load device taking-up device that adopts the design of Japanese Takata Corp to produce in the present invention, concrete technical scheme refers in patent 200710096607.4 in disclosed Webbing retractor the associated description about the pretensioner of the ball type in seat belt apparatus.
The beneficial effect of realizing by technique scheme is, pretension when only using a Webbing retractor to realize the waistband of safety strap and abdominal belt, with unidirectional taking-up device conventional in prior art or install pre-tightening apparatus additional by unidirectional taking-up device and safety belt buckle place and realize two pretension effects and compare, the present invention arranges simply, with low cost, reduce the damage of occupant in collision case.
Above the invention embodiment is had been described in detail, but described content is only for the preferred embodiment of the invention, can not be considered to the practical range for limiting the invention.All equalization variation and improvement etc. of doing according to the invention application range, within all should still belonging to the patent covering scope of the invention.
Claims (3)
1. a two belt with pre-load device taking-up device, it is characterized in that: comprise the first axle (1) and the second axle (2), described the first axle (1) comprises the first gear (11), the first ribbon spool (12) and pre-tightening apparatus (13), and described the second axle (2) comprises the second gear (21) and the second ribbon spool (22);
One end of described the first ribbon spool (12) is set with the first gear (11), the other end is connected with pre-tightening apparatus (13), one end of described the second ribbon spool (22) is set with the second gear (21), and described the first gear (11) and the second gear (12) are meshed;
Described the second ribbon spool (22) and the second gear (21) are connected and fixed by unilateral bearing (4), and described the second ribbon spool (22), unilateral bearing (4), the second gear (21) are sheathed successively from inside to outside.
2. the two belt with pre-load device taking-up devices of one according to claim 1, is characterized in that: described the first ribbon spool (12) is fixedly connected with by flat key (3) with the first gear (11);
Described the second ribbon spool (22) and unilateral bearing (4) are connected and fixed by flat key (3), and described unilateral bearing (4) is fixedly connected with by flat key (3) with the second gear (21).
3. the two belt with pre-load device taking-up devices of one according to claim 1, is characterized in that: described unilateral bearing (4) comprises unilateral bearing outer shroud (41), unilateral bearing star-wheel (42) and roller (43);
Described unilateral bearing outer shroud (41) inside face is tubular;
Described unilateral bearing star-wheel (42) outside face is provided with at least one and is with sloping projection;
Described roller (43) is fixed on projection and is fixed on the another side relative with the slope of projection;
Described unilateral bearing outer shroud (41) is sleeved on outside unilateral bearing star-wheel (42), described roller (43) and unilateral bearing star-wheel (42) and unilateral bearing outer shroud (41) close contact.
4. a seat belt apparatus that adopts two belt with pre-load device taking-up devices, is characterized in that: comprise the first guide ring (5), taking-up device (10), the second guide ring (6), safety belt buckle (8) and ribbon (7);
One end of described ribbon (7) is sleeved on the first ribbon spool (12) of taking-up device (10), be connected with the first guide ring (5), safety belt buckle (8) and the second guide ring (6) successively, the other end of described ribbon (7) is sleeved on the second ribbon spool (22) of taking-up device (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420302991.4U CN203876708U (en) | 2014-06-06 | 2014-06-06 | Dual-pre-tightening type seat belt retractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420302991.4U CN203876708U (en) | 2014-06-06 | 2014-06-06 | Dual-pre-tightening type seat belt retractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203876708U true CN203876708U (en) | 2014-10-15 |
Family
ID=51677239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420302991.4U Withdrawn - After Issue CN203876708U (en) | 2014-06-06 | 2014-06-06 | Dual-pre-tightening type seat belt retractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203876708U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104002759A (en) * | 2014-06-06 | 2014-08-27 | 中国汽车技术研究中心 | Dual-pre-tightening type safety belt retractor |
-
2014
- 2014-06-06 CN CN201420302991.4U patent/CN203876708U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104002759A (en) * | 2014-06-06 | 2014-08-27 | 中国汽车技术研究中心 | Dual-pre-tightening type safety belt retractor |
| CN104002759B (en) * | 2014-06-06 | 2016-08-31 | 中国汽车技术研究中心 | A kind of double belt with pre-load device coiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141015 Effective date of abandoning: 20160831 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |