WO2020119425A1 - 框架、安全带卷收装置及安全带组件 - Google Patents

框架、安全带卷收装置及安全带组件 Download PDF

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Publication number
WO2020119425A1
WO2020119425A1 PCT/CN2019/120305 CN2019120305W WO2020119425A1 WO 2020119425 A1 WO2020119425 A1 WO 2020119425A1 CN 2019120305 W CN2019120305 W CN 2019120305W WO 2020119425 A1 WO2020119425 A1 WO 2020119425A1
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WO
WIPO (PCT)
Prior art keywords
seat belt
hole
reel
frame
side plate
Prior art date
Application number
PCT/CN2019/120305
Other languages
English (en)
French (fr)
Inventor
拉尔森·莱纳斯·卡尔·阿克塞尔
虞悦
许志源
文卡提什·沙迦·巴萨拉鲁
乌拉·莎菲
Original Assignee
奥托立夫开发公司
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Publication date
Application filed by 奥托立夫开发公司 filed Critical 奥托立夫开发公司
Priority to KR1020217021497A priority Critical patent/KR20210119960A/ko
Publication of WO2020119425A1 publication Critical patent/WO2020119425A1/zh

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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
    • 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
    • B60R22/18—Anchoring devices
    • 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
    • B60R22/18—Anchoring devices
    • B60R22/195—Anchoring devices with means to tension the belt in an emergency, e.g. means of the through-anchor or splitted reel type
    • B60R22/1954—Anchoring devices with means to tension the belt in an emergency, e.g. means of the through-anchor or splitted reel type characterised by fluid actuators, e.g. pyrotechnic gas generators
    • 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
    • B60R22/18—Anchoring devices
    • B60R2022/1818—Belt guides
    • 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
    • B60R2022/3402—Retractor casings; Mounting thereof

Definitions

  • the present invention relates to a seat belt restraining device for restraining a vehicle occupant, and more particularly, to a frame for a seat belt retracting device.
  • the pre-tensioned seat belt can eliminate this gap by tightening the seat belt in a collision, providing more effective protection.
  • the pre-tensioned seat belt realizes this function by rotating the tensioner.
  • the rotary tensioner is connected to the reel of the seat belt retractor, and the reel can be rotated by a transmission device.
  • the transmission device generally includes a transmission wheel and a mass body for driving the rotation of the transmission wheel. A recess for accommodating the mass body is formed on the outer circumferential surface of the transmission wheel, and the transmission wheel is connected to the seat belt reel.
  • This pretensioned seat belt has a gas generator used as a driving device.
  • the gas generator and the mass body are provided in the tube. With this gas generator, a very high pressure can be generated in the tube in a short time.
  • the seat belt reel is rotatably supported in the frame.
  • a through hole is formed in the frame through which the seat belt reel can be installed in the frame.
  • the edge of the seat belt may be caught between the edge of the seat belt reel and the through hole of the frame. This may cause the seat belt to not be wound or pulled out smoothly, and may prevent the seat belt from achieving its protective effect on the occupant.
  • a frame, a seat belt retracting device, and a seat belt assembly that prevent or reduce the seat belt from being caught between the reel and the frame are needed.
  • An object of the present invention is to provide a frame, a seat belt retracting device, and a seat belt assembly that prevent or reduce the seat belt from being caught between the reel and the frame.
  • An object of the present invention is to provide a frame, a seat belt retracting device, and a seat belt assembly that prevent or reduce wear and scratches between the seat belt and the frame.
  • An aspect of the present invention provides a frame for a seat belt retracting device.
  • the seat belt retracting device includes a reel, and the seat belt can be retracted on the reel.
  • the frame includes: a back plate, a first side plate, and a second side
  • the board and the back board connect the first side board and the second side board.
  • the first side board and the second side board are parallel.
  • the first side board, the back board, and the second side board are integrally formed into a U shape and are enclosed for safe placement.
  • the accommodating space of the reel with a rewinding device wherein the first side plate has a first through hole and the second side plate has a second through hole, and the reel of the seat belt reeling device can pass through the first through hole and the second through hole
  • the hole is rotatably supported on the frame, wherein the first through hole of the first side plate includes a first seat belt guide, which is provided on the side of the first through hole away from the back plate, and when the reel is installed in the frame , The first seat belt guide is located on the side of the belt pull-out direction with respect to the rotation axis of the reel, wherein, at the first seat belt guide, the inner diameter of the first through hole increases so that when the reel is mounted on the frame When in the middle, the inner edge of the first through hole has a gap in the radial direction between the first seat belt guide and the reel.
  • the first seat belt guide forms an arc-shaped profile in the first through hole to increase the inner diameter of the first through hole.
  • the inner edge of the first through hole has a chamfer on the side facing the accommodation space.
  • the first through hole of the first side plate includes a second seat belt guide portion provided on the side of the first through hole close to the back plate, and wherein, at the second seat belt guide portion, The inner diameter of the first through hole is increased so that when the reel is installed in the frame, the inner edge of the first through hole has a gap in the radial direction between the second seat belt guide and the reel.
  • the inner edge of the first through hole has a chamfer on the side facing the accommodation space.
  • a seat belt retracting device including: a reel, wherein the seat belt can be retracted on the reel; and a frame, wherein the reel is rotatably supported in the frame, the frame includes: a back plate, The first side plate and the second side plate, the back plate connects the first side plate and the second side plate, the first side plate and the second side plate are parallel, and the first side plate, the back plate and the second side plate are integrally formed as U And surrounds the receiving space for placing the reel of the seat belt retracting device, wherein the first side plate has a first through hole and the second side board has a second through hole, and the reel of the seat belt retracting device can pass through The first through hole and the second through hole are rotatably supported on the frame, wherein the first side plate includes a first seat belt guide portion, which is provided on the side of the first through hole away from the back plate, and when the reel is installed When in the frame, the first seat belt guide is located on the side of the belt pull-out direction with
  • the seat belt retracting device further includes: a tube, in which a gas generator and a plurality of mass bodies are disposed in the tube; and a case for fixing the tube to the frame.
  • the housing is used to fix the tube to the first side plate of the frame.
  • the seat belt retracting device further includes: at least one connecting plate disposed on a side of the first side plate and the second side plate of the frame away from the back plate, and connecting the first side plate of the frame and The second side plate, wherein the extending direction of the connecting plate is parallel to the back plate.
  • the first seat belt guide forms an arc-shaped profile in the first through hole to increase the inner diameter of the first through hole.
  • the inner edge of the first through hole has a chamfer on the side facing the accommodation space.
  • the first side plate includes a second seat belt guide, which is provided on the side of the first through hole close to the back plate, and wherein, at the second seat belt guide, the The inner diameter is increased so that when the reel is installed in the frame, the inner edge of the first through hole has a gap in the radial direction between the second seat belt guide and the reel.
  • the inner edge of the first through hole has a chamfer on the side facing the accommodation space.
  • the seat belt retracting device includes: a reel, in which the seat belt can be retracted on the reel; and a frame, in which the reel is rotatably supported in the frame, the frame includes: a back plate, a first side plate, and a second side plate, The back panel connects the first side panel and the second side panel.
  • the first side panel and the second side panel are parallel.
  • the first side panel, the back panel, and the second side panel are integrally formed into a U shape and enclosed for placing a seat belt roll.
  • the receiving space of the reel of the retractor wherein the first side plate has a first through hole and the second side plate has a second through hole, and the reel of the seat belt retractor can pass through the first and second through holes Rotatably supported on the frame, wherein the first side plate includes a first seat belt guide portion provided on the side of the first through hole away from the back plate, and when the reel is installed in the frame, the first seat belt guide The portion is located on the side of the belt pull-out direction with respect to the rotation axis of the reel, wherein the inner diameter of the first through hole is increased at the first belt guide so that when the reel is installed in the frame, the first through hole The inner edge of has a gap in the radial direction between the first seat belt guide and the reel; wherein the seat belt is fixed to the reel of the seat belt retractor at one end.
  • the first seat belt guide forms an arc-shaped profile in the first through hole to increase the inner diameter of the first through hole.
  • the inner edge of the first through hole has a chamfer on the side facing the accommodation space.
  • the first side plate includes a second seat belt guide, which is provided on the side of the first through hole close to the back plate, and wherein, at the second seat belt guide, the The inner diameter is increased so that when the reel is installed in the frame, the inner edge of the first through hole has a gap in the radial direction between the second seat belt guide and the reel.
  • the inner edge of the first through hole has a chamfer on the side facing the accommodation space.
  • the seat belt retracting device further includes: a tube, in which a gas generator and a plurality of mass bodies are disposed in the tube; and a case for fixing the tube to the frame.
  • the housing is used to fix the tube to the first side plate of the frame.
  • FIG. 1 is a schematic diagram of a seat belt retracting device according to an embodiment of the present invention.
  • FIG. 2 is a plan view of a seat belt retracting device according to an embodiment of the present invention.
  • Figure 3 is a side view of a frame according to an embodiment of the invention.
  • FIG. 4 is a side cross-sectional view of a seat belt retracting device according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a safe winding device according to an embodiment of the present invention, showing a state in which a seat belt is wound.
  • FIG. 6 is a schematic diagram of a seat belt retracting device according to an embodiment of the present invention, showing a state where the seat belt is pulled out.
  • FIG. 1 is a schematic diagram of a seat belt retracting device according to an embodiment of the present invention.
  • 2 is a plan view of a seat belt retracting device according to an embodiment of the present invention.
  • the seat belt retracting device may be applied to a seat belt assembly.
  • the seat belt assembly may include the aforementioned seat belt retracting device and a seat belt, wherein the seat belt is fixed to the reel of the seat belt retracting device at one end, as described below.
  • the seat belt retracting device 100 may include a frame 10, a reel 20, a tube 30 and a housing 40. As shown in FIG. 2, the seat belt 200 may be connected to the reel 20 of the seat belt retractor 100.
  • the frame 10 may have a substantially U-shaped configuration.
  • the frame 10 may be made of metal.
  • the frame 10 may include a back plate 11, side plates 12 and 13.
  • the back plate 11 connects the side plates 12 and 13.
  • the side panels 12 and 13 may be arranged in parallel.
  • the side plates 12 and 13 may be perpendicular to the back plate 11, respectively.
  • the back plate 11 and the side plates 12 and 13 enclose an accommodating space for placing the reel 20 of the seat belt retracting device.
  • the reel 20 may be rotatably supported on the frame 10.
  • the reel 20 may have a generally cylindrical configuration.
  • One end of the seat belt 200 (see FIGS. 5 and 6, not shown in FIG. 1) may be fixed to the reel 20.
  • the seat belt When the reel 20 rotates, the seat belt may be wound on or unwound from the reel 20.
  • a transmission wheel (not shown) may be mounted to one axial end of the reel 20 (near the side plate 12 of the frame 10). The transmission wheel is connected to the reel 20 in a torque-proof manner.
  • a plurality of recesses evenly distributed along the circumferential direction may be formed on the outer circumferential surface of the transmission wheel. These pockets can be used to accommodate multiple masses that drive the drive wheels to rotate, as described below.
  • the tube 30 may have a curved shape.
  • the tube 30 is hollow and has an internal passage.
  • a gas generator and a plurality of mass bodies may be provided in the tube 30.
  • the tube, gas generator, mass body and transmission wheel can constitute the pretensioner of the belt retractor.
  • the mass body may be, for example, a mass ball.
  • the gas generator will release gas when activated, and the gas can drive the mass to move in the tube 30 and leave the tube 30.
  • the seat belt retractor activates the gas generator and generates gas to accelerate multiple masses and be pushed into multiple recesses in the transmission wheel.
  • the driving wheel rotates by driving a plurality of mass bodies, and drives the seat belt reel 20 connected to the torsion to rotate, thereby tightening the seat belt.
  • the housing 40 is used to fix the tube 30 to the frame 10.
  • the housing 40 may have an opening through which the end of the reel 20 may pass.
  • the housing 40 can accommodate, for example, a transmission wheel of a seat belt retractor.
  • the case 40 may be fixed to the side plate 12 of the frame 10.
  • the seat belt retracting device 100 may further include at least one connecting plate 50.
  • the seat belt retracting device 100 may include two connection plates 50.
  • the connecting plate 50 is provided on the side of the side plates 12 and 13 away from the back plate 11.
  • the connection plate 50 may connect the side plates 12 and 13.
  • the extending direction of the connecting plate 50 is parallel to the back plate 11.
  • the side plate 12 may form a through hole 121.
  • the side plate 13 may also form a through hole (not shown).
  • the reel 20 may pass through the through hole 121 of the side plate 12 and the through hole of the side plate 13 and is rotatably supported in the frame 10.
  • the side plate 12 may include a seat belt guide 122 located in the through hole 121.
  • Figure 3 is a side view of a frame according to an embodiment of the invention. 4 is a side cross-sectional view of a seat belt retracting device according to an embodiment of the present invention.
  • the seat belt guide 122 may be provided on the side of the through hole 121 away from the back plate 11. In some embodiments, the seat belt guide 122 may be provided on the side of the through hole 121 in the seat belt pull-out direction. In other words, when the reel 20 is installed in the frame 10, the seat belt guide 122 is provided on the side of the belt pull-out direction with respect to the rotation axis of the reel 20.
  • the seat belt guide 122 may be configured to increase the inner diameter of the through hole 121 at the seat belt guide 122.
  • the frame 10 may define a central axis. When the reel 20 is installed in the frame 10, the central axis of the frame 10 coincides with the rotation axis of the reel 20.
  • the inner diameter of the through hole means the distance from the edge of the through hole to the central axis of the frame 10.
  • the inner diameter of the through hole 121 is increased so that the inner edge of the through hole 121 has a gap in the radial direction between the seat belt guide 122 and the reel 20.
  • the seat belt guide 122 is configured such that when the seat belt is wound on the reel 20, the inner edge of the through hole 121 has a radial direction between the seat belt guide 122 and the seat belt gap.
  • the radial direction means the direction from the central axis of the frame 10 to the inner edge of the through hole 121.
  • FIG. 5 is a schematic diagram of a seat belt retracting device according to an embodiment of the present invention, showing a state of seat belt retracting.
  • 6 is a schematic diagram of a seat belt retracting device according to an embodiment of the present invention, showing a state where the seat belt is pulled out.
  • the seat belt guide 122 may form an arc-shaped profile in the through hole 121.
  • the arc-shaped profile of the seat belt guide 122 may gradually increase the inner diameter of the through hole 121, and may more effectively prevent the seat belt from being caught between the frame 10 and the reel 20 in the through hole 121.
  • the seat belt guide 122 may also form other types of contours in the through holes, such as straight-line contours, polyline contours, and the like.
  • the existing seat belt assembly may be caught between the reel and the through hole of the frame during the seat belt winding process, for example, during the seat belt pretensioning process.
  • the seat belt guide 122 can guide the seat belt away from the frame during the seat belt winding process, thereby preventing the risk of the seat belt being caught.
  • the side plate 12 may further include a seat belt guide 123 located in the through hole 121.
  • the seat belt guide 123 may be disposed on the side of the through hole 121 close to the back plate 11.
  • the seat belt guide 123 may be provided on the side of the through-hole 121 in the seat belt pull-out direction. In other words, when the reel 20 is installed in the frame 10, the seat belt guide 123 is provided on the side of the belt pull-out direction with respect to the rotation axis of the reel 20.
  • the seat belt guide 123 may be configured to increase the inner diameter of the through hole 121 at the seat belt guide 123.
  • the inner diameter of the through hole 121 is increased so that the inner edge of the through hole 121 has a gap in the radial direction between the seat belt guide 123 and the reel 20.
  • the seat belt guide 123 is configured such that when the seat belt is wound on the reel 20, the inner edge of the through hole 121 has a radial direction between the seat belt guide 123 and the seat belt gap.
  • the seat belt guide 123 may form an arc-shaped profile in the through hole 121.
  • the arc-shaped profile of the seat belt guide 123 can gradually increase the inner diameter of the through hole 121 and can more effectively prevent the seat belt from being caught between the frame 10 and the reel 20 in the through hole 121.
  • the seat belt guide 123 may also form other types of contours in the through holes, such as straight-line contours, polyline contours, and the like.
  • the existing seat belt assembly may be caught between the reel and the through hole of the frame when the seat belt is pulled out, especially when the seat belt is pulled out obliquely.
  • the seat belt guide 123 can guide the seat belt away from the frame during the process of pulling out the seat belt, thereby preventing the risk of the seat belt from being caught.
  • the inner edge of the through hole 121 may be chamfered on the side facing the receiving space of the frame 10. In some embodiments, at the seat belt guide 123, the inner edge of the through hole 121 may be chamfered on the side facing the receiving space of the frame 10. In some embodiments, between the seat belt guide 122 and the seat belt guide 123, the inner edge of the through hole 121 may be chamfered on the side facing the receiving space. The chamfering can prevent or reduce wear and scratching of the seat belt by the frame 10.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automotive Seat Belt Assembly (AREA)
  • Emergency Lowering Means (AREA)

Abstract

一种用于安全带卷收装置的框架（10），包括：背板（11）、第一和第二侧板（12, 13），背板（11）连接第一和第二侧板（12, 13），第一和第二侧板（12, 13）平行，第一侧板（12）、背板（11）和第二侧板（13）整体形成为U型并且围成用于放置安全带卷收装置的卷轴（20）的容纳空间，其中，第一侧板（12）具有第一通孔（121），第二侧板（12）具有第二通孔，卷轴（20）能够穿过第一通孔（121）和第二通孔被可转动地支撑在框架上，其中，第一通孔（121）包括第一安全带引导部（122），其设置在第一通孔（121）的远离背板（11）一侧，并且第一安全带引导部（122）相对于卷轴（20）的旋转轴线位于安全带的拉出方向侧，其中，在第一安全带引导部（122）处，第一通孔（121）的内径增大，以使得第一通孔（121）的内边缘在第一安全带引导部（122）处与卷轴（20）之间沿径向方向具有间隙。该用于安全带卷收装置的框架能够防止或减少安全带被夹在卷轴与框架之间。还涉及安全带卷收装置及安全带组件。

Description

框架、安全带卷收装置及安全带组件 技术领域
本发明涉及用于约束车辆乘员的安全带约束装置，并且更具体地，涉及用于安全带卷收装置的框架。
背景技术
在车辆行驶的过程中，安全带和人体之间有一定量的间隙。预紧式安全带能够在碰撞中通过使安全带收紧而消除该间隙，提供更有效的保护。预紧式安全带通过旋转张紧器来实现这一功能。旋转张紧器连接到安全带卷收器的卷轴，并且可通过传动装置使卷轴旋转。该传动装置通常包括传动轮和用于驱动传动轮旋转的质量体，传动轮的外周面上形成有容纳质量体的凹座，并且传动轮与安全带卷轴相连接。当车辆紧急刹车或发生碰撞时，预紧式安全带的旋转张紧器释放，质量体被加速并驱动到传动轮外周面上的凹座中，使得传动轮发生旋转。与传动轮相连接的安全带卷轴因此朝向使安全带收紧的方向旋转，从而实现安全带的预紧。这种预紧式安全带具有用作驱动装置的气体产生器。气体发生器和质量体被设置在管中。通过该气体产生器，能够在短时间内在管内产生非常高的压力。
安全带卷轴被可转动地支撑在框架中。通常，框架中形成通孔，安全带卷轴可以穿过该通孔被安装在框架中。但是，在安全带的卷绕或拉出过程中，特别是在倾斜地拉出或卷绕安全带时，安全带的边缘可能被夹在安全带卷轴与框架通孔的边缘之间。这会造成安全带不能顺利地卷绕或拉出，并且可能使得安全带无法实现其对乘员的保护作用。
为此，需要一种防止或减少安全带被夹在卷轴与框架之间的框架、安全带卷收装置及安全带组件。
发明内容
本发明的一个目的是提供防止或减少安全带被夹在卷轴与框架之间的框架、安全带卷收装置及安全带组件。本发明的一个目的是提供防止或减少安全带与框架之间的磨损和刮伤的框架、安全带卷收装置及安全带组件。
本发明的一个方面提供一种用于安全带卷收装置的框架，安全带卷收装置包括卷轴，安全带能够被卷收在卷轴上，框架包括：背板、第一侧板和第二侧板，背板连接第一侧板和第二侧板，第一侧板和第二侧板平行，第一侧板、背板和第二侧板整体形成为U型并且围成用于放置安全带卷收装置的卷轴的容纳空间，其中，第一侧板具有第一通孔，第二侧板具有第二通孔，安全带卷收装置的卷轴能够穿过第一通孔和第二通孔被可转动地支撑在框架上，其中，第一侧板的第一通孔包括第一安全带引导部，其设置在第一通孔的远离背板一侧，并且当卷轴安装在框架中时，第一安全带引导部相对于卷轴的旋转轴线位于安全带的拉出方向侧，其中，在第一安全带引导部处，第一通孔的内径增大，以使得当卷轴安装在框架中时，第一通孔的内边缘在第一安全带引导部处与卷轴之间沿径向方向具有间隙。
根据本发明的实施例，第一安全带引导部在第一通孔中形成弧形轮廓，以使得第一通孔的内径增大。
根据本发明的实施例，在第一安全带引导部处，第一通孔的内边缘在朝向容纳空间一侧具有倒角。
根据本发明的实施例，第一侧板的第一通孔包括第二安全带引导部，其设置在第一通孔的接近背板一侧，并且其中，在第二安全带引导部处，第一通孔的内径增大，以使得当卷轴安装在框架中时，第一通孔的内边缘在第二安全带引导部处与卷轴之间沿径向方向具有间隙。
根据本发明的实施例，在安全带的卷绕方向侧并且在第一安全带引导部和第二安全带引导部之间，第一通孔的内边缘在朝向容纳空间一侧具有倒角。
本发明的另一方面提供一种安全带卷收装置，包括：卷轴，其中安全带能够被卷收在卷轴上；和框架，其中卷轴被可转动地支撑在框架中，框架包括：背板、第一侧板和第二侧板，背板连接第一侧板和第二侧板，第 一侧板和第二侧板平行，第一侧板、背板和第二侧板整体形成为U型并且围成用于放置安全带卷收装置的卷轴的容纳空间，其中，第一侧板具有第一通孔，第二侧板具有第二通孔，安全带卷收装置的卷轴能够穿过第一通孔和第二通孔被可转动地支撑在框架上，其中，第一侧板包括第一安全带引导部，其设置在第一通孔的远离背板一侧，并且当卷轴安装在框架中时，第一安全带引导部相对于卷轴的旋转轴线位于安全带的拉出方向侧，其中，在第一安全带引导部处，第一通孔的内径增大，以使得当卷轴安装在框架中时，第一通孔的内边缘在第一安全带引导部处与卷轴之间沿径向方向具有间隙。
根据本发明的实施例，安全带卷收装置还包括：管，其中气体发生器和多个质量体设置在管中；和壳体，用于将管固定到框架。
根据本发明的实施例，壳体用于将管固定到框架的第一侧板。
根据本发明的实施例，安全带卷收装置还包括：至少一个连接板，其设置在框架的第一侧板和第二侧板的远离背板一侧，并且连接框架的第一侧板和第二侧板，其中连接板的延伸方向与背板平行。
根据本发明的实施例，第一安全带引导部在第一通孔中形成弧形轮廓，以使得第一通孔的内径增大。
根据本发明的实施例，在第一安全带引导部处，第一通孔的内边缘在朝向容纳空间一侧具有倒角。
根据本发明的实施例，第一侧板包括第二安全带引导部，其设置在第一通孔的接近背板一侧，并且其中，在第二安全带引导部处，第一通孔的内径增大，以使得当卷轴安装在框架中时，第一通孔的内边缘在第二安全带引导部处与卷轴之间沿径向方向具有间隙。
根据本发明的实施例，在安全带的卷绕方向侧并且在第一安全带引导部和第二安全带引导部之间，第一通孔的内边缘在朝向容纳空间一侧具有倒角。
本发明的另一方面提供一种安全带组件，包括：安全带；和安全带卷收装置。安全带卷收装置包括：卷轴，其中安全带能够被卷收在卷轴上；和框架，其中卷轴被可转动地支撑在框架中，框架包括：背板、第一侧板 和第二侧板，背板连接第一侧板和第二侧板，第一侧板和第二侧板平行，第一侧板、背板和第二侧板整体形成为U型并且围成用于放置安全带卷收装置的卷轴的容纳空间，其中，第一侧板具有第一通孔，第二侧板具有第二通孔，安全带卷收装置的卷轴能够穿过第一通孔和第二通孔被可转动地支撑在框架上，其中，第一侧板包括第一安全带引导部，其设置在第一通孔的远离背板一侧，并且当卷轴安装在框架中时，第一安全带引导部相对于卷轴的旋转轴线位于安全带的拉出方向侧，其中，在第一安全带引导部处，第一通孔的内径增大，以使得当卷轴安装在框架中时，第一通孔的内边缘在第一安全带引导部处与卷轴之间沿径向方向具有间隙；其中，安全带在一个端部处固定到安全带卷收装置的卷轴。
根据本发明的实施例，第一安全带引导部在第一通孔中形成弧形轮廓，以使得第一通孔的内径增大。
根据本发明的实施例，在第一安全带引导部处，第一通孔的内边缘在朝向容纳空间一侧具有倒角。
根据本发明的实施例，第一侧板包括第二安全带引导部，其设置在第一通孔的接近背板一侧，并且其中，在第二安全带引导部处，第一通孔的内径增大，以使得当卷轴安装在框架中时，第一通孔的内边缘在第二安全带引导部处与卷轴之间沿径向方向具有间隙。
根据本发明的实施例，在安全带的卷绕方向侧并且在第一安全带引导部和第二安全带引导部之间，第一通孔的内边缘在朝向容纳空间一侧具有倒角。
根据本发明的实施例，安全带卷收装置还包括：管，其中气体发生器和多个质量体设置在管中；和壳体，用于将管固定到框架。
根据本发明的实施例，壳体用于将管固定到框架的第一侧板。
附图说明
图1是根据本发明的实施例的安全带卷收装置的示意图。
图2是根据本发明的实施例的安全带卷收装置的俯视图。
图3是根据本发明的实施例的框架的侧视图。
图4是根据本发明的实施例的安全带卷收装置的侧视剖视图。
图5是根据本发明的实施例的安全的卷收装置的示意图，示出安全带卷收的状态。
图6是根据本发明的实施例的安全带卷收装置的示意图，示出安全带拉出的状态。
具体实施方式
下文中，参照附图描述本发明的实施例。下面的详细描述和附图用于示例性地说明本发明的原理，本发明不限于所描述的优选实施例，本发明的范围由权利要求书限定。现参考示例性的实施方式详细描述本发明，一些实施例图示在附图中。以下描述参考附图进行，除非另有表示，否则在不同附图中的相同附图标记代表相同或类似的元件。以下示例性实施方式中描述的方案不代表本发明的所有方案。相反，这些方案仅是所附权利要求中涉及的本发明的各个方面的系统和方法的示例。
图1是根据本发明的实施例的安全带卷收装置的示意图。图2是根据本发明的实施例的安全带卷收装置的俯视图。
根据本发明的实施例的安全带卷收装置可以应用于安全带组件中。安全带组件可以包括上述安全带卷收装置和安全带，其中安全带在一个端部处固定到安全带卷收装置的卷轴，如下文所述。
如图1所示，安全带卷收装置100可以包括框架10、卷轴20、管30和壳体40。如图2所示，安全带200可以连接到安全带卷收装置100的卷轴20。
框架10可以具有大致U形构造。框架10可以由金属制成。在示例性实施例中，如图1所示，框架10可以包括背板11、侧板12和13。背板11连接侧板12和13。在一些实施例中，侧板12和13可以平行地布置。在一些实施例中，侧板12和13可以分别垂直于背板11。背板11和侧板12、13围成用于放置安全带卷收装置的卷轴20的容纳空间。
卷轴20可以被可转动地支撑在框架10上。在一些实施例中，卷轴20可以具有大致圆筒形构造。安全带200(参见图5和图6，图1中未示 出)的一端可以固定到卷轴20。当卷轴20旋转时，安全带可以卷绕在卷轴20上或从卷轴20上解绕。传动轮(未示出)可以安装到卷轴20的一个轴向端(接近框架10的侧板12处)。传动轮与卷轴20抗扭转地连接。传动轮的外周面上可以形成有沿周向均匀分布的多个凹座。这些凹座可以用于容纳驱动传动轮旋转的多个质量体，如下文所述。
管30可以具有弯曲形状。管30是中空的并且具有内部通道。根据本发明的实施例，气体发生器和多个质量体(未示出)可以设置在管30中。管、气体发生器、质量体和传动轮可以组成安全带卷收装置的预紧器。质量体可以是例如质量球。气体发生器在被启动时将释放出气体，气体能够驱动质量体在管30中运动并离开管30。
当车辆紧急刹车或发生碰撞时，安全带卷收装置通过启动气体发生器并产生气体，使多个质量体加速并被推入到传动轮的多个凹座中。传动轮通过多个质量体的驱动而发生旋转，并且带动与之抗扭连接的安全带卷轴20旋转，从而使安全带卷绕收紧。
壳体40用于将管30固定到框架10。壳体40可以具有开口，卷轴20的端部可以从该开口穿过。壳体40可以容纳例如安全带卷收装置的传动轮等。壳体40可以被固定到框架10的侧板12。
安全带卷收装置100还可以包括至少一个连接板50。在示例性实施例中，如图1所示，安全带卷收装置100可以包括两个连接板50。连接板50设置在侧板12和13的远离背板11的一侧。连接板50可以连接侧板12和13。在一些实施例中，连接板50的延伸方向平行于背板11。
根据本发明的实施例，侧板12可以形成贯穿通孔121。侧板13也可以形成贯穿通孔(未示出)。卷轴20可以穿过侧板12的通孔121和侧板13的通孔，被可转动地支撑在框架10中。
根据本发明的实施例，侧板12可以包括位于通孔121中的安全带引导部122。图3是根据本发明的实施例的框架的侧视图。图4是根据本发明的实施例的安全带卷收装置的侧视剖视图。
在示例性实施例中，如图3和图4所示，安全带引导部122可以设置在通孔121的远离背板11一侧。在一些实施例中，安全带引导部122可以 设置在通孔121的安全带拉出方向侧。换言之，当卷轴20安装在框架10中时，安全带引导部122设置在相对于卷轴20的旋转轴线位于安全带的拉出方向侧。
在示例性实施例中，如图3和图4所示，安全带引导部122可以构造成在安全带引导部122处使通孔121的内径增大。根据本发明的实施例，框架10可以限定中心轴线。当卷轴20安装在框架10中时，框架10的中心轴线与卷轴20的旋转轴线重合。在本文中，通孔的内径表示从通孔的边缘到框架10的中心轴线的距离。
在一些实施例中，在安全带引导部122处，通孔121的内径增大，以使得通孔121的内边缘在安全带引导部122处与卷轴20之间沿径向方向具有间隙。在一些实施例中，安全带引导部122被构造成：当安全带被卷绕在卷轴20上时，通孔121的内边缘在安全带引导部122处与安全带之间沿径向方向具有间隙。这里，径向方向表示从框架10的中心轴线到通孔121的内边缘的方向。
图5是根据本发明的实施例的安全带卷收装置的示意图，示出安全带卷收的状态。图6是根据本发明的实施例的安全带卷收装置的示意图，示出安全带拉出的状态。
在示例性实施例中，如图3和图4所示，安全带引导部122可以在通孔121中形成弧形轮廓。安全带引导部122的弧形轮廓可以逐渐增大通孔121的内径，并且可以更有效地防止安全带在通孔121中被夹在框架10和卷轴20之间。在其他实施例中，安全带引导部122还可以在通孔中形成其他类型的轮廓，例如直线轮廓、折线轮廓等。
现有的安全带组件在安全带卷收的过程中，例如在安全带预紧过程中，安全带可能被夹在卷轴和框架的通孔之间。根据本发明的实施例，如图5所示，通过安全带引导部122可以在安全带卷收的过程中引导安全带离开框架，从而防止安全带被夹住的风险。
根据本发明的某些实施例，侧板12还可以包括位于通孔121中的安全带引导部123。在一些实施例中，如图3和图4所示，安全带引导部123可以设置在通孔121的接近背板11一侧。在一些实施例中，安全带引 导部123可以设置在通孔121的安全带拉出方向侧。换言之，当卷轴20安装在框架10中时，安全带引导部123设置在相对于卷轴20的旋转轴线位于安全带的拉出方向侧。
在示例性实施例中，如图3和图4所示，安全带引导部123可以构造成在安全带引导部123处使通孔121的内径增大。在一些实施例中，在安全带引导部123处，通孔121的内径增大，以使得通孔121的内边缘在安全带引导部123处与卷轴20之间沿径向方向具有间隙。在一些实施例中，安全带引导部123被构造成：当安全带被卷绕在卷轴20上时，通孔121的内边缘在安全带引导部123处与安全带之间沿径向方向具有间隙。
在示例性实施例中，如图3和图4所示，安全带引导部123可以在通孔121中形成弧形轮廓。安全带引导部123的弧形轮廓可以逐渐增大通孔121的内径，并且可以更有效地防止安全带在通孔121中被夹在框架10和卷轴20之间。在其他实施例中，安全带引导部123还可以在通孔中形成其他类型的轮廓，例如直线轮廓、折线轮廓等。
现有的安全带组件在安全带拉出的过程中，特别是当安全带被倾斜地拉出时，安全带可能被夹在卷轴和框架的通孔之间。根据本发明的实施例，如图6所示，通过安全带引导部123可以在安全带拉出的过程中引导安全带离开框架，从而防止安全带被夹住的风险。
根据本发明的实施例，在安全带引导部122处，通孔121的内边缘可以在朝向框架10的容纳空间一侧形成倒角。在一些实施例中，在安全带引导部123处，通孔121的内边缘可以在朝向框架10的容纳空间一侧形成倒角。在一些实施例中，在安全带引导部122至安全带引导部123之间，通孔121的内边缘可以在朝向容纳空间一侧形成倒角。倒角可以防止或减少框架10对安全带的磨损和刮伤。
尽管已经参考示例性实施例描述了本发明，但是应理解，本发明并不限于上述实施例的构造和方法。相反，本发明意在覆盖各种修改例和等同配置。另外，尽管在各种示例性结合体和构造中示出了所公开发明的各种元件和方法步骤，但是包括更多、更少的元件或方法的其它组合也落在本发明的范围之内。

Claims (20)

  1. 一种用于安全带卷收装置的框架，所述安全带卷收装置包括卷轴，安全带能够被卷收在所述卷轴上，所述框架包括：
    背板、第一侧板和第二侧板，所述背板连接所述第一侧板和所述第二侧板，所述第一侧板和所述第二侧板平行，所述第一侧板、所述背板和所述第二侧板整体形成为U型并且围成用于放置所述安全带卷收装置的所述卷轴的容纳空间，
    其中，所述第一侧板具有第一通孔，所述第二侧板具有第二通孔，所述安全带卷收装置的所述卷轴能够穿过所述第一通孔和所述第二通孔被可转动地支撑在所述框架上，
    其中，所述第一侧板包括第一安全带引导部，其设置在所述第一通孔的远离所述背板一侧，并且当所述卷轴安装在所述框架中时，所述第一安全带引导部相对于所述卷轴的旋转轴线位于所述安全带的拉出方向侧，
    其中，在所述第一安全带引导部处，所述第一通孔的内径增大，以使得当所述卷轴安装在所述框架中时，所述第一通孔的内边缘在所述第一安全带引导部处与所述卷轴之间沿径向方向具有间隙。
  2. 根据权利要求1所述的框架，其中，所述第一安全带引导部在第一通孔中形成弧形轮廓，以使得所述第一通孔的内径增大。
  3. 根据权利要求2所述的框架，其中，在所述第一安全带引导部处，所述第一通孔的内边缘在朝向所述容纳空间一侧具有倒角。
  4. 根据权利要求3所述的框架，其中，所述第一侧板包括第二安全带引导部，其设置在所述第一通孔的接近所述背板一侧，并且
    其中，在所述第二安全带引导部处，所述第一通孔的内径增大，以使得当所述卷轴安装在所述框架中时，所述第一通孔的内边缘在所述第二安全带引导部处与所述卷轴之间沿径向方向具有间隙。
  5. 根据权利要求4所述的框架，其中，在所述安全带的卷绕方向侧并且在所述第一安全带引导部和所述第二安全带引导部之间，所述第一通孔的内边缘在朝向所述容纳空间一侧具有倒角。
  6. 一种安全带卷收装置，所述安全带卷收装置包括：
    卷轴，其中安全带能够被卷收在所述卷轴上；和
    框架，其中所述卷轴被可转动地支撑在所述框架中，所述框架包括：
    背板、第一侧板和第二侧板，所述背板连接所述第一侧板和所述第二侧板，所述第一侧板和所述第二侧板平行，所述第一侧板、所述背板和所述第二侧板整体形成为U型并且围成用于放置所述安全带卷收装置的所述卷轴的容纳空间，
    其中，所述第一侧板具有第一通孔，所述第二侧板具有第二通孔，所述安全带卷收装置的所述卷轴能够穿过所述第一通孔和所述第二通孔被可转动地支撑在所述框架上，
    其中，所述第一侧板包括第一安全带引导部，其设置在所述第一通孔的远离所述背板一侧，并且当所述卷轴安装在所述框架中时，所述第一安全带引导部相对于所述卷轴的旋转轴线位于所述安全带的拉出方向侧，
    其中，在所述第一安全带引导部处，所述第一通孔的内径增大，以使得当所述卷轴安装在所述框架中时，所述第一通孔的内边缘在所述第一安全带引导部处与所述卷轴之间沿径向方向具有间隙。
  7. 根据权利要求6所述的安全带卷收装置，其中，所述安全带卷收装置还包括：
    管，其中气体发生器和多个质量体设置在所述管中；和
    壳体，用于将所述管固定到所述框架。
  8. 根据权利要求7所述的安全带卷收装置，其中，所述壳体用于将所述管固定到所述框架的第一侧板。
  9. 根据权利要求8所述的安全带卷收装置，其中，所述安全带卷收装置还包括：
    至少一个连接板，其设置在所述框架的所述第一侧板和第二侧板的远离背板一侧，并且连接框架的所述第一侧板和所述第二侧板，其中所述连接板的延伸方向与所述背板平行。
  10. 根据权利要求6所述的安全带卷收装置，其中，所述第一安全带 引导部在第一通孔中形成弧形轮廓，以使得所述第一通孔的内径增大。
  11. 根据权利要求10所述的安全带卷收装置，其中，在所述第一安全带引导部处，所述第一通孔的内边缘在朝向所述容纳空间一侧具有倒角。
  12. 根据权利要求11所述的安全带卷收装置，其中，所述第一侧板包括第二安全带引导部，其设置在所述第一通孔的接近所述背板一侧，并且
    其中，在所述第二安全带引导部处，所述第一通孔的内径增大，以使得当所述卷轴安装在所述框架中时，所述第一通孔的内边缘在所述第二安全带引导部处与所述卷轴之间沿径向方向具有间隙。
  13. 根据权利要求12所述的安全带卷收装置，其中，在所述安全带的卷绕方向侧并且在所述第一安全带引导部和所述第二安全带引导部之间，所述第一通孔的内边缘在朝向所述容纳空间一侧具有倒角。
  14. 一种安全带组件，所述安全带组件包括：
    安全带；和
    安全带卷收装置，包括：
    卷轴，其中所述安全带能够被卷收在所述卷轴上；和
    框架，其中所述卷轴被可转动地支撑在所述框架中，所述框架包括：
    背板、第一侧板和第二侧板，所述背板连接所述第一侧板和所述第二侧板，所述第一侧板和所述第二侧板平行，所述第一侧板、所述背板和所述第二侧板整体形成为U型并且围成用于放置所述安全带卷收装置的所述卷轴的容纳空间，
    其中，所述第一侧板具有第一通孔，所述第二侧板具有第二通孔，所述安全带卷收装置的所述卷轴能够穿过所述第一通孔和所述第二通孔被可转动地支撑在所述框架上，
    其中，所述第一侧板包括第一安全带引导部，其设置在所述第一通孔的远离所述背板一侧，并且当所述卷轴安装在所述框架中时，所述第一安全带引导部相对于所述卷轴的旋转轴线位于所述安全带的拉出方向侧，
    其中，在所述第一安全带引导部处，所述第一通孔的内径增 大，以使得当所述卷轴安装在所述框架中时，所述第一通孔的内边缘在所述第一安全带引导部处与所述卷轴之间沿径向方向具有间隙；
    其中，所述安全带在一个端部处固定到所述安全带卷收装置的卷轴。
  15. 根据权利要求14所述的安全带组件，其中，所述第一安全带引导部在第一通孔中形成弧形轮廓，以使得所述第一通孔的内径增大。
  16. 根据权利要求15所述的安全带组件，其中，在所述第一安全带引导部处，所述第一通孔的内边缘在朝向所述容纳空间一侧具有倒角。
  17. 根据权利要求16所述的安全带组件，其中，所述第一侧板包括第二安全带引导部，其设置在所述第一通孔的接近所述背板一侧，并且
    其中，在所述第二安全带引导部处，所述第一通孔的内径增大，以使得当所述卷轴安装在所述框架中时，所述第一通孔的内边缘在所述第二安全带引导部处与所述卷轴之间沿径向方向具有间隙。
  18. 根据权利要求17所述的安全带组件，其中，在所述安全带的卷绕方向侧并且在所述第一安全带引导部和所述第二安全带引导部之间，所述第一通孔的内边缘在朝向所述容纳空间一侧具有倒角。
  19. 根据权利要求14所述的安全带组件，其中，所述安全带卷收装置还包括：
    管，其中气体发生器和多个质量体设置在所述管中；和
    壳体，用于将所述管固定到所述框架。
  20. 根据权利要求19所述的安全带组件，其中，所述壳体用于将所述管固定到所述框架的第一侧板。
PCT/CN2019/120305 2018-12-13 2019-11-22 框架、安全带卷收装置及安全带组件 WO2020119425A1 (zh)

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