CN1160654A - Belt retractor for vehicle safety belts - Google Patents
Belt retractor for vehicle safety belts Download PDFInfo
- Publication number
- CN1160654A CN1160654A CN 96123300 CN96123300A CN1160654A CN 1160654 A CN1160654 A CN 1160654A CN 96123300 CN96123300 CN 96123300 CN 96123300 A CN96123300 A CN 96123300A CN 1160654 A CN1160654 A CN 1160654A
- Authority
- CN
- China
- Prior art keywords
- belt
- structural member
- tie
- oscillating structural
- plate
- 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.)
- Pending
Links
Images
Landscapes
- Automotive Seat Belt Assembly (AREA)
Abstract
A belt retractor for vehicle safety belts with child's safety device includes: a belt drum and a locking mechanism for preventing rotation of the belt drum. It is also disposed with a tripping mechanism is also provided, which has a coupling disk connected with the belt drum and provided with external gear teeth. A pawl is able to be selectively pivoted between an engagement position with the external gear teeth of the coupling disk and a normal position out of engagement with such external gear teeth, A ring of gear teeth is driven by the belt drum and two gear wheels are in mesh with said ring of gear teeth, the gear wheels are rotatably mounted on the ends of a rocking member. An actuating arm is connected with the rocking member for the operation of the pawl. Switching elements are provided on the periphery of the gear wheels and of the ring of gear teeth. In order to obtain a child safety device which has small axial total size relative to the belt drum, at least one switching element is a switching tooth projecting along radial direction, and at least another one is a closing tooth gap.
Description
The present invention relates to the belt taking-up device that a kind of vehicle safety strap is used, especially a kind of belt taking-up device that comprises child's safety device, it suits to be independent of catch gear (it is to the vehicle and/or ribbon sensitivity) and works.
A kind of like this belt taking-up device comprises a catch gear, and it is used for stoping the motion that is installed in rotation on the belt reel among the shell.In order to start catch gear, be provided with a tripping-gear that comprises an inertia disk, described inertia disk can be rotated in a restricted scope with respect to belt reel, and the reel band links to each other with a driving disk, and this driving disk unclamps catch gear with respect to the rotation of belt reel.In order to start child's safety device, also be provided with the switchover element that an energy is changed between two stable switching positions, unclamp catch gear at the first switching position switchover element, then lock ribbon in second switching position.The ribbon amount that is wrapped on the belt reel is depended in the conversion of switchover element between described two switching positions, and its method is with the rotation of belt reel of slowing down of a driving device, and makes it produce required change action.
A kind of belt taking-up device was disclosed in open communique 0 535 551 A2 of European patent, its driving device comprises: a main gear that rotates with the rotation of belt reel, and on two respective end that are installed in rotation on an oscillating structural member and all the time with the equipment gear of gear.Main gear and equipment gear all are provided with the cam of lateral arrangement, these cams only gear in relative rotation some specific positions run foul of each other, thereby make oscillating structural member be transformed into another position from a stable switching position.An actuating arm is linked to each other, so that handle a ratchet that can pivotally be installed on the shell, the outer driving cog cooperating of described ratchet and driving disk with oscillating structural member.
But, the necessary add-on parts of this child's safety device to be installed in an existing belt taking-up device to be had certain difficulty really, this is particularly owing to axially must have additional requisite space with respect to belt reel.
The invention provides the belt taking-up device that a kind of vehicle safety strap is used, wherein, being used to form the required add-on parts of child's safety device can combine, and can not appear at the problem that exists in the existing design, more particularly because the child's safety device among the present invention is less with respect to the axial overall dimensions of belt reel.In a kind of traditional approach, the belt taking-up device that is used for vehicle safety strap according to the present invention comprises: a belt reel that is installed in rotation on shell in a known way, a catch gear that is used for stoping the belt reel rotation, and tripping-gear that includes an inertia disk, described inertia disk can be rotated in a restricted scope with respect to belt reel, and its rotation with respect to belt reel can be used for starting catch gear.In addition, also comprise a conversion ratchet, it can one with the outer driving cog position engaged of control wheel and one and described outside pivot between the normal position of driving cog disengagement.One by the gear mesh on belt reel transmission gear ring that drives and the end that is installed in rotation on an oscillating structural member, and above-mentioned oscillating structural member can pivotally be installed on the shell.An actuating arm links to each other with oscillating structural member, so that the manipulation transforms ratchet.In addition, be provided with a plurality of switchover elements on the periphery of gear and transmission gear ring, they run foul of each other at the predetermined relative rotation position place of the unmodified of gear and transmission gear ring, thereby oscillating structural member is pivoted.According to the present invention, it is the conversion tooth pattern that extends radially on the one hand that switchover element is designed to, and then is closed backlash on the other hand.Therefore, these switchover elements do not extend transmission gear ring and corresponding gear vertically, thereby just hold them without any need for additional axial space yet.
A preferred embodiment of the present invention has economic especially design, and wherein, the transmission gear ring is arranged on the side of tie-plate, and more particularly is included in a plurality of dentation elements that form on the side of tie-plate.Described transmission gear ring preferably has a diameter more much bigger than the diameter of gear, and gear is placed on the neighboring of transmission gear ring with oscillating structural member, at this, the mode that gear and oscillating structural member can a kind ofly be saved the space is arranged in a jiao of lid of belt taking-up device.
Below in conjunction with being described hereinbelow in detail with reference to the accompanying drawings, thereby make other advantage of the present invention and feature more obvious, wherein:
Fig. 1 is the side perspective view according to the belt taking-up device of first embodiment of the invention, and this moment, ribbon was in the state that almost completely unclamps;
Fig. 2 shows a part of the same side view, and this ribbon is in the state that is totally released;
Fig. 3 is the partial view when beginning rolling-in again corresponding to ribbon;
Fig. 4 is and the corresponding lateral plan of Fig. 1, but about 1/4th ribbon rolling-in is arranged;
Fig. 5 is the decomposition view of a preferred embodiment of belt taking-up device; And
Fig. 6 is the fragmentary, perspective view of this belt taking-up device.
Only show the so-called control side of belt taking-up device among the figure, on this side, be provided with control mechanism the ribbon situation sensitivity of the vehicle and catch gear.On this side of the shell of belt taking-up device, a back plate 10 is housed.Tie-plate 13 is mounted and fixed on the side direction minor axis of belt reel by a fulcrum 12.Tie-plate 13 on its neighboring, be provided with a plurality of outside driving cog 16, and an inertia disk 14 is housed.These outer driving cogs 16 are with a kind of traditional mode and spherical position-sensing unit 18 cooperatings, and the ratchet that can pivot 20 just is placed on the spherical position-sensing unit 18.Another can pivotally be bearing in a ratchet 22 on joystick 11 (see figure 5)s also with outer driving cog 16 cooperatings of tie-plate 13, and can between engage position and normal position, pivot, ratchet 22 leans against outside these on driving cog at described engage position, and described normal position with outside driving cog be disengaged.
Near the neighboring of tie-plate 13 and on its side, form a transmission gear ring by a plurality of driver elemenies of making separately 24 (they along the circumferential direction are spaced from each other).This is meshed with two gears 26 and 28 forever by the transmission gear ring that driver element 24 constitutes, and described gear is installed in rotation on the respective end of an oscillating structural member that can pivot 30.An elastic drive arm 32 links to each other with oscillating structural member 30, and also engages with ratchet 22.At state shown in Figure 1, actuating arm 32 makes ratchet 22 remain on the outer driving cog 16 out-of-gear center positions of itself and tie-plate 13.On oscillating structural member 30, also be provided with a spring bracket member 34 further, so as in such a way with backing block 36 cooperation, even oscillating structural member 30 can be on any one position in two possible swing position.
Two backlash that formed by the tooth of driver element 24 are arranged, and they are respectively by bridge shape piece A and B sealing.In addition, gear 26 and 28 respectively has a tooth that extends radially, and represents with C and D respectively.
Belt taking-up device with child's safety device is generally changed between normal running function and locking function, under described normal operation functional status, catch gear is corresponding with the state of the vehicle and ribbon, and can be with the ribbon rolling-in under described locking function state, but impassabitity fully unclamps ribbon from the belt reel and loosens.Fig. 1 represents the just state before ribbon is totally released.The actuating arm 32 of oscillating structural member 30 makes ratchet 22 remain on the outer driving cog 16 out-of-gear normal conditions of itself and tie-plate.Further pulling out ribbon, when tie-plate 13 is rotated counterclockwise, make the bridge shape piece A in the gap between two adjacent driver elemenies 24 of sealing move to (herein, ribbon fully unclamps) till gear 28 places, and hit being known as and open the stretching out on the tooth C of tooth.Be resisted against on the bridge shape piece A owing to open tooth C, gear 28 is open, and makes oscillating structural member 30 pivot.This state as shown in Figure 2.At this moment, the actuating arm 32 of oscillating structural member 30 lifts ratchet 22, thereby the tip of this ratchet is stretched in the motion path of outer driving cog 16 of tie-plate 13.
After this, when ribbon was wrapped on the belt reel again, as shown in Figure 3, because ratchet 22 is repelled by the back of external tooth 16, it can not hinder the rotation of tie-plate 13.But when ribbon is extracted out once more, ratchet 22 will stop the rotation of belt reel 14, thereby the catch gear (not shown) of belt taking-up device is activated.In this state, child's seat or load just may be fastened on the seat of vehicle.
When unclamping belt, ribbon is incited somebody to action rolling-in further on belt reel.When the ribbon of predetermined quantity (for example 75%) again during rolling-in, will hit at the bridge shape piece B between two adjacent driver elemenies and be positioned at being known as on the gear 26 and close stretching out on the tooth D of tooth.Gear is subjected to radially collision outwardly, and oscillating structural member 30 is pivoted, thereby enters another position in two settling position, and consequently actuating arm 32 discharges ratchets 22.So, can restart the normal function and the operation of belt taking-up device.
Under the situation of the preferred embodiment of as illustrated in Figures 5 and 6 belt taking-up device, oscillating structural member 30 can pivotally be installed on the frame support bracket 38, this carriage is installed on the back plate 10 movably with an one part again.One end of connecting rod 39 is installed around the lining of tie-plate 13, and its opposite end then links with the rotating support of oscillating structural member 30, thereby makes fixing distance of neighboring maintenance of described rotating support and tie-plate 13.This feature means: the gap that increases owing to the wearing and tearing of the bearing of belt reel can not produce any influence to oscillating structural member 30 and the distance between the engaging tooth on the neighboring of tie-plate 13, therefore can not hinder the adjusting of change-over point.
As a kind of modification of the foregoing description, swinging gear 30 can be provided with a spring arm 30a, and it guarantees the bistable performance of oscillating structural member 30 in the spring bracket member 34 similar modes in a kind of and the foregoing description.
Claims (6)
1. belt taking-up device that is used for vehicle safety strap comprises:
A) one is installed in rotation on a belt reel in the shell;
B) one is used for preventing the catch gear that described belt reel rotates;
C) tripping-gear, it has the tie-plate (13) of a plurality of outer driving cogs that link to each other with described belt reel and be provided with;
D) ratchet (22), it can one lean against the engage position on the driving cog (16) outside described tie-plate (13) described and one and described outside pivot selectively between the normal position that is disengaged of driving cog;
E) transmission gear ring (24) that drives by described belt reel, and two and described transmission gear ring (24) gears in mesh (26,28), described gear (26,28) be installed in rotation on the end of an oscillating structural member (30), and described oscillating structural member (30) can pivotally be installed on the described shell.
F) actuating arm (32), it links to each other with described oscillating structural member (30), so that handle described ratchet (22); And
G) at described gear (26,28) and a plurality of switchover elements that are provided with on the periphery of described transmission gear ring (24), described switchover element at the setting unmodified relative angular position place of described gear and described transmission gear ring mutually against, thereby described oscillating structural member (30) is pivoted;
It is characterized by, at least one described switchover element be made into a teeth change that extends radially (C, D), and the another one in the described at least switchover element be made into an osed top backlash (A, B);
2. belt taking-up device according to claim 1 is characterized by, and described transmission gear ring is arranged on the side of described tie-plate (13).
3. belt taking-up device according to claim 1 is characterized by, and described transmission gear ring comprises a plurality of a plurality of dentation elements (24) that form on the described side of described tie-plate (13).
4. belt taking-up device according to claim 3 is characterized by, except described sealing backlash (A, B) outside, described dentation member (24) along the circumferential direction is spaced from each other.
5. any one the described belt taking-up device in requiring according to aforesaid right is characterized by, and described transmission gear ring (24) has an obvious overall diameter greater than gear.
6. any one the described belt taking-up device in requiring according to aforesaid right, it is characterized by, described oscillating structural member (30) can pivotally be installed in one movably on the frame support bracket (38), described frame support bracket keeps the described oscillating structural member (30) and the neighboring of described tie-plate (13) that a fixing distance is arranged by means of a connecting rod (39) that links to each other with the lining of described tie-plate (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96123300 CN1160654A (en) | 1995-12-22 | 1996-12-19 | Belt retractor for vehicle safety belts |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29520425.7 | 1995-12-22 | ||
| CN 96123300 CN1160654A (en) | 1995-12-22 | 1996-12-19 | Belt retractor for vehicle safety belts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1160654A true CN1160654A (en) | 1997-10-01 |
Family
ID=5127617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96123300 Pending CN1160654A (en) | 1995-12-22 | 1996-12-19 | Belt retractor for vehicle safety belts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1160654A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104981383A (en) * | 2012-12-12 | 2015-10-14 | Trw汽车股份有限公司 | Force limiting device and method for controlling a force limiting device |
| CN114111509A (en) * | 2021-12-15 | 2022-03-01 | 徐海华 | Land measuring tool for natural resource space planning management |
-
1996
- 1996-12-19 CN CN 96123300 patent/CN1160654A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104981383A (en) * | 2012-12-12 | 2015-10-14 | Trw汽车股份有限公司 | Force limiting device and method for controlling a force limiting device |
| CN114111509A (en) * | 2021-12-15 | 2022-03-01 | 徐海华 | Land measuring tool for natural resource space planning management |
| CN114111509B (en) * | 2021-12-15 | 2023-09-05 | 徐海华 | Land measuring tool for natural resource space planning management |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5881854A (en) | Mechanism for controlling a rotary member by means of a pivoting handle, and a seat fitted with such a mechanism | |
| US3944163A (en) | Seat belt retractor | |
| CN1919661B (en) | Webbing winding device | |
| EP1323599B1 (en) | Seat belt retractor | |
| US6250579B1 (en) | Belt winder | |
| CN1678218B (en) | Adjustable seat | |
| US5188341A (en) | Safety latch for a tire carrier | |
| CN101683889B (en) | Shift controller for a bicycle gear | |
| EP0777596B1 (en) | Cable slack adjuster | |
| CN105987162B (en) | For being automatically brought into operation the selector of gear-box | |
| CN100551745C (en) | Winding up apparatus for safety belt, seat safety belt apparatus, vehicle | |
| EP0806326A3 (en) | Retractor for motor vehicle seat belts | |
| US6000443A (en) | Brake mechanism of wire reel for reinforcing bar binding machine | |
| JPH01275878A (en) | Manual window regulator | |
| US6921041B2 (en) | Seat-belt retractor | |
| CN1160654A (en) | Belt retractor for vehicle safety belts | |
| EP1298017B1 (en) | Seat belt retractor with automatic locking mechanism | |
| DE102007008495B4 (en) | Belt retractor for a safety belt system | |
| GB2188673A (en) | Safety device for a power-driven roller door | |
| EP1036717B1 (en) | Lockbar with compensation for frame deformation | |
| JPH0818534B2 (en) | Safety belt restraint | |
| DE102006036554A1 (en) | Belt retractor for safety belt system, has belt strap, pivotably supported at frame for holding seat belt, where brake element is deactivated by activating irreversible belt tightening | |
| EP0972684B1 (en) | Locking mechanism for a safety belt retractor | |
| CN1150409A (en) | Coupling for transmitting torque from fluid-driven rotary drive to belt axle of safety belt winder for tightening safety belt | |
| EP0662903B1 (en) | Safety latch for a tire carrier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |