Seat belt wire guide device

Abstract

The seatbelt wire guide device according to the present invention is a seatbelt wire guide device mounted on a pretensioner, and may include a case part fixed to one end of the pretensioner, a wire part formed to be long and extending from the pretensioner and having a portion of the wire part bent at a predetermined bending angle condition, and a guide part coupled to the case part and configured to support the wire part by enabling an angle change corresponding to the predetermined bending angle condition.

Description

Technology Field

[0001] The present invention relates to a device for guiding a seat belt wire, and more specifically, to a seat belt wire guide device comprising a guide portion that supports a wire that is bent according to a vehicle. Background Technology

[0002] A seatbelt is a device that secures a passenger to the seat in a vehicle, protecting them from impacts or accidents that occur while driving.

[0003] The seat belt device comprises a belt called webbing, a retractor that winds or unwinds one end of the belt while mounted on the vehicle body, a fixing anchor that secures the other end of the belt to the vehicle body, and a tongue plate that is movably attached to the middle part of the belt and fastened to a buckle provided on the opposite side of the fixing anchor. It may also include a pretensioner that applies tension by momentarily pulling the belt in the early stages of a collision to reduce the looseness of the belt, and a load limiter that protects the occupant's body by causing the belt to loosen when the tension applied to the belt exceeds a limit load.

[0004] In conventional seat belt systems, the load limiter is installed on the retractor side, while the buckle on the opposite side is often fixed to the vehicle body. However, in such seat belt systems, even if the belt tension on the occupant's shoulder side loosens due to the action of the load limiter in the event of an accident, the tension on the buckle side remains fixed, which can cause a momentary imbalance in belt tension and make it difficult to fully protect the occupant's body.

[0005] Seatbelt systems can be safely used when the belt, which secures the occupant's abdomen, rests on the pelvis. However, occupants may fasten the belt incorrectly or wear it in a way that prevents it from resting on the pelvis due to their body shape; if a collision occurs in this state, the "submarining" phenomenon may occur, where the occupant's body slides down below the belt. When submarining occurs, the belt, having dislocated from the pelvis, constricts the occupant's abdomen, potentially causing injuries such as hernias or intestinal rupture.

[0006] Recently, as cars of various sizes are being sold, work is being carried out to adjust the position of the wire appropriately for the occupant when seat belt systems are installed.

[0007] Production costs have been incurred as each mold for a guiding device capable of fixing the position of a wire in response to various vehicle models has to be manufactured individually.

[0008] The current situation is causing a serious problem where the company developing the guide device must bear the costs incurred when supplying it to the automobile developer, as molds are manufactured for every new vehicle developed in the future. The problem to be solved

[0009] The present invention is devised to solve the problems of the aforementioned prior art, and aims to reduce the cost of mold manufacturing by arranging a guide device to rotate in correspondence with the wire bending position, thereby adjusting the angle in correspondence with the vehicle type.

[0010] The problems of the present invention are not limited to those mentioned above, and other unmentioned problems will be clearly understood by those skilled in the art from the description below. means of solving the problem

[0011] The seatbelt wire guide device of the present invention for achieving the above-mentioned purpose is a seatbelt wire guide device mounted on a pretensioner, and may include a case part fixed to one end of the pretensioner, a wire part formed to be long and extending from the pretensioner, and having a portion of the wire part bent at a predetermined bending angle condition, and a guide part coupled to the case part and configured to support the wire part by enabling an angle change corresponding to the predetermined bending angle condition.

[0012] And the guide portion is rotatably coupled to the case portion in at least a portion thereof and can support one side in correspondence with the shape of the wire portion that is bent between the pretensioner and the guide portion.

[0013] In addition, the guide portion may include a body member fixed to the case portion and a rotating member rotatably coupled to the body member, with a portion protruding along the longitudinal direction of the wire portion.

[0014] In addition, the guide portion may further include an axial coupling member formed to be elongated and penetrating the body member and the rotating member to be coupled to the case portion.

[0015] In addition, the guide portion may further include a locking member provided on the side of the body member along the longitudinal direction of the shaft coupling member to prevent the body member from rotating in the case portion.

[0016] The above body member and the above rotating member have screw threads formed on the contacting surfaces so that the angle of the above rotating member can be adjusted.

[0017] In addition, the rotating member may be formed such that a portion in contact with the wire portion corresponds to the shape of the wire portion. Effects of the invention

[0018] According to the present invention, there is an effect of reducing production costs by not manufacturing molds according to the vehicle type.

[0019] In addition, depending on the vehicle type, it rotates in correspondence with the bending radius of the wire, thereby having the effect of safely supporting the wire.

[0020] The effects of the present invention are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art from the description in the claims. Brief explanation of the drawing

[0021] FIG. 1 is a perspective view of a pretensioner including a seatbelt wire guide device according to one embodiment of the present invention; FIG. 2 is a drawing showing the detailed configuration of a guide part in a seatbelt wire guide device according to an embodiment of the present invention; FIG. 3 is a drawing for explaining that a guide part is coupled to a case part in a seatbelt wire guide device according to an embodiment of the present invention; FIGS. 4 and FIGS. 5 are drawings for explaining the operation of a seatbelt wire guide device according to an embodiment of the present invention. Specific details for implementing the invention

[0022] Preferred embodiments of the present invention, in which the objectives of the present invention can be specifically realized, will be described below with reference to the attached drawings. In describing these embodiments, the same names and reference numerals are used for identical components, and additional explanations thereof will be omitted.

[0023] The present invention relates to a seatbelt wire guide device mounted on a pretensioner (10), which supports a wire in correspondence with a wire arranged in a different shape for each vehicle.

[0024] The configuration of the present invention may largely include a case part (100), a wire part (200), and a guide part (300), and the configuration and structure thereof will be explained in detail through the drawings.

[0025] FIG. 1 is a perspective view of a pretensioner (10) including a seatbelt wire guide device according to one embodiment of the present invention.

[0026] As described, the case portion (100) is fixed to one end of the pretensioner (10) and has a U-shape when viewed from one side along the length direction, so that the top is open and the two sides and the bottom surface are bent and connected. The wire portion (200) is formed long and extends from the pretensioner (10), and a portion of it is bent from the case portion (100), and can be bent with a predetermined bending angle condition.

[0027] The bending angle condition mentioned here refers to the fact that the direction in which the wire faces differs for each vehicle, and thus the bending angle in the pretensioner (10) differs, so the angle can be varied according to the engineer's design.

[0028] In addition, the guide part (300) is coupled to the case part (100) and is configured to allow for angle change in response to a preset bending angle condition, thereby supporting the wire part (200).

[0029] As described above, the guide portion (300) is rotatably provided on a part of the case portion (100) and can be rotatably provided to correspond to the shape of the wire bent in response to a preset bending angle condition.

[0030] The guide section (300) will be explained in more detail through FIGS. 2 and FIGS. 3.

[0031] FIG. 2 is a drawing showing the detailed configuration of a guide part (300) in a seat belt wire guide device according to one embodiment of the present invention, and FIG. 3 is a drawing for explaining that the guide part (300) in a seat belt wire guide device according to one embodiment of the present invention is coupled to a case part (100).

[0032] As described, the guide portion (300) is rotatably coupled to at least a portion of the case portion (100) and can support one side in correspondence with the shape of the wire portion (200) that is bent between the pretensioner (10) and the guide portion (300).

[0033] The guide portion (300) may include a body member (320) fixed to the cable portion and a rotating member (340) rotatably coupled to the body member (320) and formed with a portion protruding along the longitudinal direction of the wire portion (200).

[0034] Additionally, the guide portion (300) may further include an axial coupling member (360) that is formed long and penetrates the body member (320) and the rotating member (340) to be coupled to the case portion (100).

[0035] As described above, the guide portion (300) has a hole formed therein through which the shaft coupling member (360) passes, and the guide portion (300) is fixed to the case portion (100) by means of the shaft coupling member (360) through the through hole.

[0036] The shaft coupling member (360) used here may be a riveting nut, a stud bolt, or a combination of a nut and a bolt.

[0037] Meanwhile, the body member (320) may have a shape in which a guard wall (not shown) is formed on one side protruding upward to surround one side of the rotating member (340), and the other side is open to come into contact with the case part (100) together with the rotating member (340).

[0038] In other words, one of the two inner sides of the case part (100) may be in contact with the body member (320), and the other side may be in contact with both the rotating member (340) and the body member (320). Here, the side in which the body member (320) and the rotating member (340) are combined and in contact with the other side may have the same plane.

[0039] According to this shape, the rotating member (340) has a shape in which one side is in contact with the body member (320) and the other side is in contact with the case part (100).

[0040] As a result, a predetermined spacing is provided between the guard wall and the rotating member (340) to reduce interference with the rotation of the rotating member (340).

[0041] Specifically, a predetermined gap is formed between the aforementioned guard wall and the rotating member (340), so that friction is generated only by the case part (100) as the rotating member (340) rotates, thereby making it easier for the rotating member (340) to rotate.

[0042] Meanwhile, the lower part of the body part can correspond to the shape of the part to which the case part (100) is joined.

[0043] As described, the part to which the guide part (300) is joined to the case part (100) has a semicircular shape. Accordingly, the body member (320) may also have a surface with a semicircular shape corresponding to the semicircular shape of the case part (100).

[0044] This is to ensure integration with the pretensioner (10), so it may be preferable for the body member (320) to correspond to the shape of the case part (100).

[0045] Furthermore, the body member (320) and the rotating member (340) are provided such that the rotating member (340) can rotate on the body member, and a screw thread (50) may be formed so that the rotated position of the rotating member (340) is fixed according to the angle between the rotating member (340) and the body member (320).

[0046] As described above, the body member (320) and the rotating member (340) are each formed with a screw thread (50) and joined to each other, so that the rotating member (340) can be fixed in position at the rotated position of the rotating member (340).

[0047] And a stopper (322, 342) may be formed to limit the radius of rotation of the rotating member (340).

[0048] Assuming that the locking projection is a support projection protruding from the main body to support the main body and wire portion (200) which are penetrated by the center of the shaft coupling member (360) and has a circular shape with screw threads (50) formed along the circumference of the rotating member (340), a second locking projection (342) is formed such that the space between the support projection and the main body is stepped, and the body member (320) may include a first locking projection (322) formed to contact the second locking projection (342), having a semicircular concave groove shape to accommodate the main body and having screw threads (50) formed on its surface.

[0049] The first stopper (322) can be formed on both sides of the body member (320) having a semicircular shape as described above. The second stopper (342) can restrict the rotation of the rotating member (340) by means of both sides of the first stopper (322).

[0050] According to one embodiment of the present invention, the rotation radius (70) of the rotating member (340) is preferably set to 120 degrees.

[0051] Meanwhile, on both sides of the body member (320), a locking member (380) may be further provided on the side of the body member (320) along the longitudinal direction of the shaft coupling member (360) to restrict the body member (320) from rotating in the case portion (100).

[0052] In the present invention, a part of the case portion (100) protrudes toward the side from the U-shaped main body to form a guide portion (300), and the part protruding from the case portion (100) and the main body can form a right angle.

[0053] Accordingly, the locking member (380) is formed to protrude from both sides of the body member (320) along the length direction of the long shaft coupling member (360) and may have a shape that is inserted into a part formed at a right angle in the case part (100).

[0054] Through this, the body member (320) is not rotated in the case part (100), and only the rotating member (340) can be rotated.

[0055] Meanwhile, the rotating member (340) may have a surface where the support projection and the wire portion (200) come into contact formed to correspond to the shape of the wire portion (200).

[0056] According to the present invention, the wire portion (200) is formed with a curved circumference, and accordingly, the supporting surface (344) that contacts the wire portion (200) and supports the wire portion (200) may also have a concave groove shape to accommodate the wire portion (200).

[0057] The embodiments of the present invention will be described through the following Figures 4 and 5.

[0058] FIGS. 4 and FIGS. 5 are drawings for explaining the operation of a seatbelt wire guide device according to an embodiment of the present invention.

[0059] As shown in the illustration, it can be seen that the angle at which the wire portion (200) is bent on the pretensioner (10) is different in FIG. 4 and FIG. 5.

[0060] Therefore, when the wire portion (200) is bent, the support projection of the guide portion (300) can be rotated to match the angle at which the wire is bent, thereby supporting the wire portion (200).

[0061] In FIG. 4, the wire portion (200) is bent in the 10 o'clock direction along the clockwise direction, and the rotating member (340) in the guide portion (300) is rotated in the body member (320) to support the wire portion (200).

[0062] Meanwhile, as shown in Fig. 5, the wire portion (200) is bent at the pretensioner (10) in the 2 o'clock direction along the clockwise direction.

[0063] And in response to this, the rotating member (340) can be rotated in the body member (320) along the direction in which the wire portion (200) is bent, thereby supporting the wire portion (200) to maintain the bent shape.

[0064] As described above, preferred embodiments according to the present invention have been examined. It is obvious to those skilled in the art that, in addition to the embodiments described above, the present invention may be embodied in other specific forms without departing from its spirit or scope. Therefore, the embodiments described above should be regarded as illustrative rather than restrictive, and accordingly, the present invention is not limited to the description above but may be modified within the scope of the appended claims and their equivalents. Explanation of the symbols

[0067] Pretensioner: 10 Case section: 100 Wire section: 200 Guide Section: 300 Body member: 320 First stopper: 322 Rotating member: 340 Second stopper: 342 Support surface: 344 Axial coupling member: 360 Locking member: 380 Thread: 50 Rotation section: 70

Claims

Claim 1 A seatbelt wire guide device mounted on a pretensioner, comprising: a case portion fixed to one end of the pretensioner; a wire portion formed to be elongated and extending from the pretensioner, with a portion of the wire portion being bent at the case portion and having a preset bending angle condition; and a guide portion coupled to the case portion and configured to allow for angle change corresponding to the preset bending angle condition to support the wire portion, wherein the guide portion comprises: a body member fixed to the case portion, with at least a portion rotatably coupled to the case portion to support one side corresponding to the shape of the wire portion bent between the pretensioner and the guide portion; a rotating member rotatably coupled to the body member and a portion protruding along the longitudinal direction of the wire portion; and an axial coupling member formed to be elongated and penetrating the body member and the rotating member to be coupled to the case portion. A seatbelt wire guide device comprising: a locking member provided on the side of the body member along the longitudinal direction of the shaft coupling member to prevent the body member from rotating on the case portion; wherein one side of the rotating member contacts the body member and the other side contacts the case portion; and wherein the body member and the rotating member have screw threads formed on the contacting surfaces so that the rotating member can rotate on the body portion, and wherein, after angle adjustment, the rotated position of the rotating member is fixed according to the angle between the rotating member and the body member. Claim 2 delete Claim 3 delete Claim 4 delete Claim 5 delete Claim 6 delete Claim 7 A seatbelt wire guide device according to claim 1, characterized in that a portion of the rotating member that contacts the wire portion is formed to correspond to the shape of the wire portion.

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