阅读说明：本技术 用于座椅安全带的锚固预紧器模块 (Anchor pretensioner module for seat belt ) 是由 金大云 于 2020-10-16 设计创作，主要内容包括：本发明涉及一种用于座椅安全带的锚固预紧器模块,其包括：锚固器,其布置在座椅垫的一侧,并且座椅安全带的锁舌紧固至所述锚固器；基座,其设置在所述锚固器下侧,所述基座具有设置在所述基座后部的产生爆炸压力的第一操作部和设置在所述基座前部的产生爆炸压力的第二操作部；第一线缆,其连接至基座和锚固器,并且在操作第一操作部时,使锚固器能够向下移动；以及第二线缆,其设置在基座上,并且当操作第二操作部时,使第一线缆移动的同时插入基座中,以使锚固器能够在向下移动的同时向前移动,使得当发生碰撞时,锚固器的相对位置移动用以约束乘员的身体。(The present invention relates to an anchoring pretensioner module for a seat belt, comprising: an anchor disposed at one side of the seat cushion, and to which a tongue of the seat belt is fastened; a base provided on a lower side of the anchor, the base having a first operating part provided at a rear portion of the base to generate explosive pressure and a second operating part provided at a front portion of the base to generate explosive pressure; a first cable that is connected to the base and the anchor, and that enables the anchor to move downward when the first operation portion is operated; and a second cable that is provided on the base and that, when the second operation portion is operated, is inserted into the base while moving the first cable to enable the anchor to move forward while moving downward, so that, when a collision occurs, the relative position of the anchor moves to restrain the body of the occupant.)

1. An anchoring pretensioner module for a seat belt, comprising:

an anchor disposed at one side of the seat cushion, and to which a tongue of the seat belt is fastened;

a base provided on a lower side of the anchor, the base having a first operating part provided at a rear portion of the base to generate explosive pressure and a second operating part provided at a front portion of the base to generate explosive pressure;

a first cable that is connected to the base and the anchor, and that enables the anchor to move downward when the first operation portion is operated; and

a second cable that is provided on the base and is inserted into the base while moving the first cable when the second operation portion is operated, so that the anchor can move forward while moving downward;

wherein the relative positions of the anchors are moved to restrain the body of the occupant when a collision occurs.

2. The anchoring pretensioner module for a seat belt according to claim 1, wherein,

the first cable has a first end portion connected to the anchor and a second end portion inserted into the base from a rear portion of the base to be connected to a front portion of the first operating portion, and when the first operating portion is operated, the second end portion moves toward the front portion of the base to move the anchor downward.

3. The anchoring pretensioner module for a seat belt according to claim 1, wherein,

a cylinder is provided at a rear portion of an upper portion of the base and is capable of reciprocating, and a first cable is inserted into the base through the cylinder and moves forward together with the cylinder when the second operating portion is operated.

4. The anchoring pretensioner module for a seat belt according to claim 3, wherein,

the first operating part and the second operating part are arranged at the lower part of the base;

the first end of the second cable is connected to the cylinder and extends to the front of the base to be bent at the front of the base, and then the second end of the second cable is connected behind the position of the second operating portion, and when the second operating portion is operated to slide the cylinder, the second end of the second cable moves to the rear of the base, thereby enabling the anchor to move forward while moving downward.

5. The anchoring pretensioner module for a seat belt according to claim 1, further comprising:

a control unit sensing an inclination angle of the seat, and determining that the seat is in a normal posture if the inclination angle is a specific angle or less; if the reclining angle is a specific angle or more, it is determined that the seat is in a relaxed posture, and the first operating portion is controlled to operate when a collision occurs in a normal posture, and the second operating portion is controlled to operate when a collision occurs in a relaxed posture.

6. The anchoring pretensioner module for a seat belt according to claim 5, wherein,

operating the first operating portion so that the relative position of the anchor with respect to the seat moves downward when a collision occurs in the normal posture; when a collision occurs in the relaxed posture, the second operation portion is operated so that the anchor moves forward and downward with respect to the relative position of the seat.

7. The anchoring pretensioner module for a seat belt according to claim 1, wherein,

the base is composed of an upper tube positioned at an upper portion of the base and a lower tube connected to the upper tube and positioned below the upper tube and parallel to the upper tube, a first operating portion is provided at a rear portion of the lower tube, and a second operating portion is provided at a front portion of the lower tube;

the cylinder is provided at the rear of the upper tube to be connected to be able to slide forward.

8. The anchoring pretensioner module for a seat belt according to claim 7, wherein,

the first end of the first cable is connected to the anchor to extend vertically through the cylinder and to be inserted into the rear of the lower tube, and then the second end of the first cable is connected to the front of the first operating part, and the first end of the second cable is connected to the cylinder through the front of the upper tube and the lower tube, and the second end of the second cable is connected to the front of the second operating part through the front of the upper tube and the lower tube.

9. The anchoring pretensioner module for a seat belt according to claim 7, wherein,

the base includes: a front sleeve covering the front part of the base and embedding the second operation part at the lower side of the base; and a rear sleeve covering a rear portion of the base and fitted into the first operating portion at a lower side of the base.

10. The anchoring pretensioner module for a seat belt according to claim 1, wherein,

the clamp is provided at a second end portion of the first cable and a second end portion of the second cable to enable the first cable to move forward when the first operating portion is operated and to enable the second cable to be inserted into the base when the second operating portion is operated.

11. The anchoring pretensioner module for a seat belt according to claim 7, wherein,

the jig includes: a plurality of balls that are discharged when the first or second manipulation part is manipulated to fix the first or second cable so as not to move in an opposite direction after a collision occurs.

12. The anchoring pretensioner module for a seat belt according to claim 1, wherein,

the first operating portion and the second operating portion are micro gas generators.

13. The anchoring pretensioner module for a seat belt according to claim 1, wherein,

the first operation part is arranged in the center of the lower end of the base;

ends of the first cable and the second cable are adjacently connected to the first operating portion;

the anchoring pretensioner module includes:

a gas line which is a flow path through which gas is discharged from the first manipulation part, which is composed of a first line connected to a rear portion of an end of the first cable and a second line connected to a rear portion of an end of the second cable, and which includes: a valve blocking the flow of the fluid to control a discharge path of the gas.

14. The anchoring pretensioner module for a seat belt according to claim 13, further comprising:

a control unit sensing a tilting angle of the seat, determining that the seat is in a normal posture if the tilting angle is equal to or less than a certain angle, determining that the seat is in a relaxed posture if the tilting angle is equal to or greater than the certain angle, and controlling the valve such that gas can flow to the rear of the end of the first pipeline through the first pipeline when a collision occurs in the normal posture, and gas can flow to the rear of the end of the second cable through the second pipeline when the collision occurs in the relaxed posture.

Technical Field

The present invention relates to an anchoring pretensioner module for a seat belt to restrain an occupant of a vehicle by moving the position of an anchor based on the recline angle of the seat in the event of an accident (e.g., a collision with one or more other vehicles and/or objects).

Background

As vehicle technology continues to advance, the environment in which collisions may occur also changes. Therefore, research and development of devices for protecting occupants from various accidents that may occur while driving a vehicle are becoming more and more important. A seat belt is very important as a device for mainly protecting an occupant in an accident.

A seat belt is a device that safely protects an occupant in the event of an accident (e.g., a collision with one or more vehicles and/or objects), and the belt should not be released unless unlocked by operation of the occupant. Seat belts typically include webbing, a retractor, an anchor, a pretensioner, and a buckle.

The pretensioner is used to detonate a built-in explosive before operating the airbag to rewind the webbing of the seat belt, thereby fixing the occupant to the seat to maintain a correct posture. An anchor pretensioner is a device that is mounted on a seat or a vehicle body to pull a webbing of a seat belt to restrain a lower limb (e.g., a pelvic portion of an occupant). The anchor pretensioner may be fixed to the seat belt to more effectively restrain the body of the occupant.

Meanwhile, when a collision occurs, a dive phenomenon may occur, which means that a body is pushed down from a seat belt even if a passenger wears the seat belt. Due to the submarine phenomenon, injuries may occur such as the abdomen of the occupant being caught by the webbing.

In order to prevent the submarine phenomenon, the inventive device having the function of changing the angle of intersection of the anchoring pretensioner in the event of a collision has been developed. In the case of an autonomous vehicle, the arrangement and posture of the seat may be very diverse, but if the seat is inclined at a large angle, it is not sufficient to protect the occupant using only the existing anchoring pretensioner. If the seat is inclined at a large angle, the restraining force of the lower body is insufficient even if the anchoring pretensioner is applied, and thus a submarine phenomenon occurs, whereby the possibility of injury to the occupant increases.

The above statements as background are intended only to aid in the understanding of the background of the invention and are not intended to limit the scope of the invention as defined by the appended claims.

Disclosure of Invention

The present valve provides an anchoring pretensioner module that can determine the posture of an occupant according to the reclining angle of a vehicle seat, and is configured to move based on the posture of the occupant, thereby sufficiently restraining the body of the occupant even if an accident occurs in a relaxed posture.

An anchoring pretensioner module for a seat belt according to the present invention may include: an anchor disposed at one side of the seat cushion, and to which a tongue of the seat belt is fastened; a base provided on a lower side of the anchor, the base having a first operating part provided at a rear portion of the base to generate explosive pressure and a second operating part provided at a front portion of the base to generate explosive pressure; a first cable that is connected to the base and the anchor, and that enables the anchor to move downward when the first operation portion is operated; and a second cable that is provided on the base and is inserted into the base while moving the first cable when the second operation portion is operated, so that the anchor can move forward while moving downward.

The first cable may have a first end connected to the anchor and a second end inserted into the base from a rear of the base to be connected to a front of the first operating part, and when the first operating part is operated, the second end may be moved toward the front of the base to move the anchor downward.

A cylinder that is capable of reciprocating sliding may be provided at a rear portion of an upper portion of the base, and the first cable may be inserted into the base through the cylinder and moved forward together with the cylinder when the second operating part is operated.

The first operating part and the second operating part may be provided on a lower portion of the base, the first end of the second cable may be connected to the cylinder and extend to a front portion of the base to be bent at the front portion of the base, and then the second end of the second cable may be connected behind a position of the second operating part, and when the second operating part is operated to slide the cylinder, the second end of the second cable may be moved toward a rear portion of the base, thereby enabling the anchor to be moved forward while being moved downward.

The anchoring pretensioner module may further include: a control unit sensing an inclination angle of the seat, and determining that the seat is in a normal posture if the inclination angle is a specific angle or less; if the reclining angle is a specific angle or more, it is determined that the seat is in a relaxed posture, and the first operating portion is controlled to operate when a collision occurs in a normal posture, and the second operating portion is controlled to operate when a collision occurs in a relaxed posture.

When a collision occurs in a normal posture, the first operation portion may be operated so that the relative position of the anchor with respect to the seat may be moved downward; when a collision occurs in the relaxed posture, the second operation portion may be operated so that the relative position of the anchor with respect to the seat may be moved forward and moved downward.

Further, the base has a structure composed of an upper tube positioned at an upper portion of the base and a lower tube connected to the upper tube and positioned parallel to the upper tube below the upper tube, the first operating portion may be provided at a rear portion of the lower tube, and the second operating portion may be provided at a front portion of the lower tube; and the cylinder may be provided at the rear of the upper tube to be coupled to be slidable forward.

The first end of the first cable may be connected to the anchor to extend vertically through the cylinder and to be inserted into the rear of the lower tube, and then the second end of the first cable may be connected to the front of the first operating part, and the first end of the second cable may be connected to the cylinder through the front of the upper tube and the lower tube, and the second end of the second cable may be connected to the front of the second operating part through the front of the upper tube and the lower tube.

The base may include: a front sleeve covering the front part of the base and embedding the second operation part at the lower side of the base; and a rear sleeve covering a rear portion of the base and fitted into the first operating portion at a lower side of the base.

The clamp may be provided at the second end of the first cable and the second end of the second cable to enable the first cable to move forward when the first manipulation part is manipulated and to enable the second cable to be inserted into the base when the second manipulation part is manipulated.

Further, the jig may include: and a plurality of balls that are discharged when the first operating part or the second cable is operated to fix the first cable or the second cable so as not to move in an opposite direction after a collision occurs.

The first operating portion and the second operating portion are micro gas generators.

Further, the first operating portion may be provided at the center of the lower end of the base;

ends of the first cable and the second cable are adjacently connected to the first operating portion; and the anchoring pretensioner module may include: a gas line which is a flow path through which gas is discharged from the first manipulation part, which is composed of a first line connected to a rear portion of an end of the first cable and a second line connected to a rear portion of an end of the second cable, and which includes: a valve blocking the flow of the fluid to control a discharge path of the gas.

The anchoring pretensioner module may further include: a control unit sensing a tilting angle of the seat, determining that the seat is in a normal posture if the tilting angle is equal to or less than a certain angle, determining that the seat is in a relaxed posture if the tilting angle is equal to or greater than the certain angle, and controlling the valve such that gas can flow to the rear of the end of the first pipeline through the first pipeline when a collision occurs in the normal posture, and gas can flow to the rear of the end of the second cable through the second pipeline when the collision occurs in the relaxed posture.

According to the anchoring pretensioner module of the present invention, even if a collision occurs in the relaxed posture and the normal posture, the anchoring pretensioner module can be moved based on the posture of the occupant to effectively restrain the body of the occupant, thereby preventing a submarine phenomenon.

Further, the anchoring pretensioner module can be easily manufactured and assembled due to its simple structure, and can be handled after a collision and easily replaced.

Drawings

The above and other objects, features and other advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:

fig. 1 is a perspective view illustrating an anchoring pretensioner module according to an exemplary embodiment of the present invention.

Fig. 2 is a sectional view illustrating an anchoring pretensioner module according to an exemplary embodiment of the present invention.

Fig. 3 and 4 are schematic views showing changes in the positions of anchors when the first operating portion of the anchoring pretensioner module according to an exemplary embodiment of the present invention is operated.

Fig. 5 and 6 are schematic views showing changes in the positions of anchors when a second operation of the anchoring pretensioner module according to the exemplary embodiment of the present invention is operated.

Fig. 7 and 8 are schematic views showing a state of fixing a cable of the anchoring pretensioner module according to an exemplary embodiment of the present invention.

Fig. 9 is a cross-sectional view of an anchoring pretensioner module according to another exemplary embodiment of the present invention.

Detailed Description

It should be understood that the term "vehicle" or "vehicular" or other similar terms as used herein generally includes motor vehicles, such as passenger automobiles including Sport Utility Vehicles (SUVs), buses, vans, various commercial vehicles, watercraft including various boats, ships, aircraft, and the like, and includes hybrid vehicles, electric vehicles, plug-in hybrid electric vehicles, hydrogen-powered vehicles, and other alternative fuel vehicles (e.g., fuels derived from non-fossil energy sources). As referred to herein, a hybrid vehicle is a vehicle having two or more power sources, such as both gasoline-powered and electric-powered vehicles.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, values, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, values, steps, operations, elements, components, and/or groups thereof. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. Throughout this specification, unless explicitly described to the contrary, the word "comprise", and variations such as "comprises" or "comprising", will be understood to imply the inclusion of stated elements but not the exclusion of any other elements. Also, the terms "unit," "device," "means," and "module" described in the specification mean a unit for performing at least one of functions and operations, and may be implemented by hardware components or software components, and a combination thereof.

Further, the control logic of the present application may be embodied as a non-transitory computer readable medium on a computer readable medium containing executable program instructions for execution by a processor, controller, or the like. Examples of computer readable media include, but are not limited to, ROM, RAM, Compact Disc (CD) -ROM, magnetic tape, floppy disk, flash drive, smart card, and optical data storage device. The computer readable medium CAN also be distributed over a Network coupled computer system so that the computer readable medium is stored and executed in a distributed fashion, for example, by a telematics server or Controller Area Network (CAN).

The specific structure of the functional description of the exemplary embodiments of the present aspect disclosed in the present specification or application is shown only for the purpose of describing the exemplary embodiments according to the present invention, and the exemplary embodiments according to the present invention may be embodied in various forms and should not be construed as limiting the present invention to the exemplary embodiments described in the present specification or application.

While exemplary embodiments in accordance with the invention are susceptible to various modifications and alternative forms, specific exemplary embodiments have been shown in the drawings and are described in detail in this specification or application. However, it is not intended to limit the exemplary embodiments according to the inventive concept to the particular forms disclosed, and it should be understood that the invention includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Terms such as first and/or second may be used to describe various components, but these components should not be limited by these terms. These terms are only used to distinguish one element from another, for example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element, without departing from the scope of the concept according to the present invention.

When an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element, but it is understood that other elements may be present between the elements. On the other hand, when an assembly is referred to as being "directly connected" or "directly coupled" to another assembly, it is understood that there are no other assemblies between the assemblies. Other expressions describing the relationship between components should be interpreted in the same way, i.e. "between … …" and "immediately between … …" or "near … …" and "directly adjacent to … …".

The present invention will be described in detail by explaining preferred exemplary embodiments of the invention with reference to the attached drawings. Like reference symbols in each of the drawings indicate like elements.

A pretensioner is a component of a seat belt and is used to detonate an embedded explosive upon a collision to rewind a webbing of the seat belt, thereby fixing an occupant to the seat to maintain a correct posture. The occupant can be protected by the operation of the pretensioner. However, as described above, if the seat is laid down at a specific angle or more, a submarine phenomenon may occur even if the pretensioner operates.

The present invention relates to an anchoring pretensioner that can operate a first operating portion 201 when a seat is in a normal posture and a second operating portion 202 when the seat is in a relaxed posture, and therefore, operates the first operating portion 201 and/or the second operating portion 202 based on the posture of an occupant, thereby effectively protecting the occupant at the time of a collision.

Fig. 1 is a perspective view of an anchoring pretensioner module according to an exemplary embodiment of the present invention, and fig. 2 is a sectional view of the anchoring pretensioner module according to an exemplary embodiment of the present invention. Referring to fig. 1 and 2, an anchoring pretensioner module according to an exemplary embodiment of the present invention may be composed of an anchor 100, a base 200, a first cable 300, and a second cable 400.

Anchor 100 is a seat belt fastening and deadbolt securing device. The anchor 100 may be disposed on the side of the seat cushion.

The base 200 may be disposed below the anchor 100. The anchor 100 and the base 200 may be connected by a first cable 300 extending downwardly from the anchor 100. The base 200 may be disposed at a side of the seat.

The base 200 may be provided with a first operating part 201 and a second operating part 202 for generating explosion pressure. The first and second operating parts 201 and 202 may be Micro Gas Generators (MGGs) that supply high-pressure gas at the time of collision. The first operating part 201 may be disposed at the rear of the base 200, and the second operating part 202 may be disposed at the front of the base 200. That is, the second operating portion 202 may be disposed at a position spaced forward from the position of the first operating portion 201.

The cylinder 203 may be disposed at the rear of the upper portion of the base 200. The cylinder 203 may be connected to an upper portion of the base 200 to be capable of reciprocating sliding.

The first cable 300 may be connected to the anchor 100 and the base 200, and the second cable 400 may be disposed inside the base 200. When a collision occurs, the relative position of the anchor 100 with respect to the seat is changed by the first cable 300 and the second cable 400.

Fig. 3 and 4 are schematic views showing changes in the position of the anchor 100 when the first operating portion 201 of the anchor pretensioner module according to an exemplary embodiment of the present invention is operated.

Referring to fig. 3 and 4, a first cable 300 may be connected to the base 200 and the anchor 100. Specifically, a first end of the first cable 300 may be connected to the anchor 100, and a second end of the first cable 300 may be inserted into the interior of the base 200 from the rear of the base 200. The second end of the first cable 300 may be connected to the front of the position of the first manipulation part 201. When the first manipulation part 201 is manipulated, the second end of the first cable 300 moves to the front of the base 200, and pulls the first end of the first cable 300, so that the anchor 100 can move downward.

Fig. 5 and 6 are schematic views showing a change in the position of the anchor 100 when the second operating part of the anchor pretensioner module according to the exemplary embodiment of the present invention is operated.

The second cable 400 may be disposed inside the base 200. A first end of the second cable 400 may be connected to the cylinder 203. Since the cylinder 203 is disposed at the rear of the upper portion of the base 200, the first end of the second cable 400 is connected to the base 200 at the rear of the upper portion of the base 200. The second cable 400 may extend to the front of the base 200 to be bent at the front of the base 200, and then the second end of the second cable 400 may be connected behind the position of the second manipulation part 202. That is, the first end of the second cable 400 may be located at the rear of the upper portion of the base 200, the second end of the second cable 400 may be located at the rear of the lower portion of the base 200, and the middle point may be formed in a shape curved at the front of the base 200.

When the second manipulation part 202 is manipulated, the second end of the second cable 400 moves to the rear of the base 200, and the first end of the second cable 400 moves to the front of the base 200. The cylinder 203 connected to the first end of the second cable 400 slides forward, and since the first cable 300 penetrates the cylinder 203, the first cable 300 moves downward while moving forward. Thus, the anchor 100 moves forward and downward.

The first cable 300 may be inserted into the base 200 through the cylinder 203 at the lower surface of the anchor 100. Therefore, when the cylinder 203 is slid forward, the position of the anchor 100 can be moved forward, while the first cable 300 is also moved forward together.

In addition, as shown in fig. 1 and 2, the anchoring pretensioner module according to an exemplary embodiment of the present invention may further include a control unit 500. The control unit 500 may sense the inclination angle of the seat to determine that the seat is in a normal posture when the inclination angle is a specific angle or less, and determine that the seat is in a relaxed posture when the inclination angle is a specific angle or more.

The control unit 500 may control the first operating portion 201 to operate when a collision occurs if the control unit 500 determines that the seat is in the normal posture, and control the second operating portion 202 to operate when a collision occurs if the control unit 500 determines that the seat is in the slack posture. Therefore, when a collision occurs in the normal posture, the relative position of the anchor 100 with respect to the seat is moved downward by the first operation portion 201. Further, when a collision occurs in the relaxed posture, the relative position of the anchor 100 with respect to the seat is moved forward and downward by the operation of the second operation portion 202.

Meanwhile, referring to fig. 1 to 6, the base 200 may be composed of an upper tube 210 and a lower tube 220. The upper portion of the base 200 may be formed by an upper tube 210, and a lower tube 220 may be parallel to the upper tube 210 and positioned below the upper tube 210. The first operating portion 201 may be disposed at a rear portion of the lower tube 220, and the second operating portion 202 may be disposed at a front portion of the lower tube 220. The front portions of the upper tube 210 and the lower tube 220 may be connected to each other, and the insides thereof may communicate with each other. The cylinder 203 may be provided at the rear of the upper tube 210 to be connected to be capable of sliding forward.

When the base 200 is composed of the upper tube 210 and the lower tube 220, then the first end of the first cable 300 may be connected to the anchor 100 to extend vertically through the cylinder 203 and to be inserted into the rear of the lower tube 220, and then the second end of the first cable 300 may be connected to the front of the position of the first manipulation part 201. A first end of the second cable 400 may be connected to the cylinder 203, and a second end of the second cable 400 may be connected to a front of a position of the second operating part 202 through front portions of the upper and lower tubes 210 and 220.

In addition, the base 200 may include a front sleeve 230 covering the front and a rear sleeve 240 covering the rear. The second manipulation part 202 may be embedded in the lower side of the front sleeve 230, and the first manipulation part 201 may be embedded in the lower side of the rear sleeve 240. The front and rear sleeves 230 and 240 may protect the base 200 from external interference with the first and second cables 300 and 400. Further, since the front sleeve 230 and the rear sleeve 240 can be easily separated and replaced when a collision occurs, and the front sleeve 230 and the rear sleeve 240 are replaced after the operation, there is an advantage of easy replacement.

Fig. 7 and 8 are schematic views showing a state of fixing a cable of the anchoring pretensioner module according to an exemplary embodiment of the present invention.

Referring to fig. 7 and 8, a clamp 600 may be provided at the other ends of the first and second cables 300 and 400 according to an exemplary embodiment of the present invention. When the first manipulation part 201 is manipulated, the first cable 300 may be moved forward by the jig 600. When the second manipulation part 202 is manipulated, the second cable 400 may be inserted into the base 200 through the jig 600. By selective operation of the first and second operation portions 201 and 202 by the clamp 600, the behavior of the anchor 100 can be stably achieved.

A plurality of spheres 601 may be provided in the fixture 600. When the first manipulation part 201 or the second manipulation part 202 is manipulated, the plurality of balls 601 are separated from the jig 600 to prevent the first cable 300 or the second cable 400 from moving to the opposite side. That is, the ball 601 may perform a function of fixing the cable. When a collision occurs, the occupant loses his/her balance and is supported by the webbing, thereby transferring the weight of the occupant to the webbing. Since the cable may move in the opposite direction by the weight transmitted to the webbing, the ball 601 is separated from the clamp 600 to fix the cable so as not to move in the opposite direction.

Fig. 9 is a cross-sectional view of an anchoring pretensioner module according to another exemplary embodiment of the present invention.

Referring to fig. 9, the anchoring pretensioner module according to another exemplary embodiment of the present invention is provided with one operation part, for example, a first operation part 201 at the center of the lower end of the base 200, and the end portions of the first and second cables 300 and 400 may be adjacently connected to the operation part. In addition, the anchoring pretensioner module may further include a gas line 700 that is a flow path through which gas discharged from the operation part flows.

The gas line 700 is a flow path of gas discharged from the operation part, and may be composed of a first line 710 and a second line 720. The first pipeline 710 is connected to the rear of the first cable 300, and the second pipeline 720 is connected to the rear of the second cable 400. The gas line 700 may be provided with a valve 730, and the valve 730 may block the flow of the fluid. As shown in fig. 9, the valve 730 may also be disposed on one of the first line 710 or the second line 720, and may also be disposed on both the first line 710 and the second line 720.

The control unit 500 of the pretensioner module according to another exemplary embodiment of the present invention may control the valve 730. When a collision occurs in the normal posture, the control unit 500 may control the gas to flow to the rear of the end of the first cable 300 through the first line 710 such that the first cable 300 moves to the front of the base 200. Thus, the anchor 100 may move downward.

Further, when a collision occurs in the relaxed posture, the control unit 500 may control the gas to flow to the rear of the end of the second cable 400 through the second pipe 720 such that the second cable 400 moves to the rear of the base 200. Thus, the anchor 100 may be moved downward and forward.

In many cases, the seating posture of the occupant is usually a normal posture, but at a convenient rest, the occupant tilts the seat to take a relaxed posture in some cases. In particular, in the case of an autonomous vehicle, since the number of cases in which an occupant intervenes in a driving operation is reduced, it is expected that the occupant will lean the seat to sit in the vehicle in many cases to rest comfortably.

When the seat is inclined at a specific angle or more, the restraining force of the lower body is insufficient, and thus a submarine phenomenon may occur when a collision occurs. Even a seat belt-worn occupant may be seriously injured if a dive occurs. Specifically, since the seat back lies flat in the relaxed posture, the force pushing forward when a collision occurs increases. Therefore, since the probability of occurrence of the submarine phenomenon increases, it is necessary to increase the restraining force in the relaxed posture.

In the case of the anchoring pretensioner module according to the present invention, when a collision occurs in a normal posture, the position of the anchor 100 may be moved downward to increase the restraining force of the lower limbs. In particular, in the case of the relaxed posture, the position of the anchor 100 moves forward while moving downward, thereby preventing a phenomenon in which the occupant is pushed forward. By increasing the restraining force on the occupant according to the change in the position of the anchor 100, injury can be minimized. When the anchor 100 moves forward in the relaxed posture, a restraining force for the webbing to restrain the pelvis of the occupant is increased.

While the particular exemplary embodiments of the present invention have been illustrated and described, it will be apparent to those skilled in the art that various modifications and changes may be made without departing from the technical spirit of the invention as provided by the appended claims.