WO2018149261A1 - Packing method for rolling and/or folding side curtain into tubular form - Google Patents

Abstract

A packing method for rolling and/or folding a side curtain into tubular form. The packing method comprises a step for providing a side curtain (20), wherein the side curtain (20) comprises a first top portion (21). When the side curtain (20) is expanded, the first top portion (21) has a smaller size in a width direction of the side curtain than other parts of the side curtain (20) in the width direction. The packing method further comprises at least one of the following steps: when rolling and/or folding the air curtain (20) into tubular form, rolling or folding the first top portion (21) around a first core (24) with a preconfigured dimension; and when the air curtain (20) is rolled and/or folded into a tubular form, then rolling and/or folding the first top portion (21) again. By using the packing method, an air curtain (20) rolled and/or folded into tubular form has a first top portion (21) with an external size less than the external size of other parts of the air curtain (20).

Description

Packaging method for winding and/or folding a curtain into a tubular body Technical field

The invention relates to a packaging method for winding and/or folding an air curtain into a tubular body.

Background technique

Air curtains can be used to protect occupants (such as drivers and/or passengers) in the event of a side impact, particularly to protect the occupant's head. When the vehicle is running normally, the air curtain is usually in a wound or folded state and is installed in an accommodation space formed along the A-pillar, the curved longitudinal beam of the roof, and the C-pillar. When the vehicle collides, the air curtain is inflated and deployed to provide anti-collision protection for the occupant between the occupant and the side structure of the vehicle (such as a door, window, B-pillar, etc.).

Typically, the outer perimeter of the air curtain that can be accommodated in the A-pillar is smaller than the outer perimeter of the curved longitudinal stringer and the air curtain that can be accommodated at the C-pillar. Therefore, the outer circumference of the air curtain at the A-pillar needs to be smaller than the outer circumference at the curved longitudinal beam and the C-pillar.

1 and 2 illustrate a prior art method for forming an air curtain of the type described above, the method comprising the following steps. First, a portion of the air curtain is cut off at a position where the outer peripheral size of the air curtain 10 is required to be small and at the fixed side 11 of the air curtain at the position, such as the area surrounded by the circular shape of FIG. The fixed side 11 described herein refers to the side of the air curtain 10 that is fixed to the vehicle, and the fixed side 10 is provided with a plurality of fixing devices 12 (for example, mounting lugs) to fix the upper edge of the air curtain to the vehicle. Then, the remaining portion of the air curtain is wound or folded into a tubular shape. However, according to this method, a plurality of fixing means 12 carried on the portion of the air curtain which is cut off are also cut off. Therefore, additional additional fixtures 13 are needed to secure the air curtain (as shown in Figure 2), increasing man hours and costs. In addition, this method also causes some of the air curtains that are originally fixed by the cut-off fixtures 12 to be no longer fixed when the air curtain is deployed, which may affect the protective effect of the air curtain.

Summary of the invention

The present invention has been made in view of the above circumstances, and an object thereof is to provide a novel packaging method for winding and/or folding a gas curtain into a tubular body. The outer peripheral dimension of a portion of the tubular air curtain formed by the packaging method is smaller than the outer peripheral size of the other portions, thereby being suitable for mounting to the side of the passenger compartment, and the packaging method requires shorter man-hours and lower cost.

According to an embodiment of the present invention, there is provided a packaging method for winding and/or folding a gas curtain into a tubular body, wherein the packaging method comprises the step of providing an air curtain comprising a first end in an unfolded state of the air curtain Lower, the dimension of the first end portion in the air curtain width direction is smaller than the dimension of the other portion of the air curtain in the air curtain width direction, and the packaging method further comprises at least one of the following steps: winding and/or folding the air curtain into a tubular shape The first end portion is wound or folded around a first mandrel having a predetermined size; and the first end portion is further wound and/or folded after winding and/or folding the air curtain into a tubular body Wherein the outer peripheral dimension of the first end portion of the air curtain wound and/or folded into the tubular body is made smaller than the outer peripheral dimension of the other portion of the air curtain by the packaging method. The method according to an embodiment of the present invention is capable of installing the air curtain in an accommodation space along the A-pillar, the roof rail, and the C-pillar of the vehicle. Moreover, the packaging method requires less man-hours and lower costs because it only requires the steps of winding and/or folding without the need for additional means such as an auxiliary fixture.

According to a preferred embodiment of the invention, the step of winding and/or folding the first end about the first mandrel comprises the steps of: winding and/or folding the first end around the first mandrel; and removing the A mandrel.

According to a preferred embodiment of the invention, removing the first mandrel facilitates further reducing the outer perimeter dimension of the air curtain after winding/folding, and the first mandrel can be reused.

According to a preferred embodiment of the invention, the step of further winding and/or folding the first end comprises the steps of inserting the second mandrel from the first end into the tubular body, rotating the second mandrel, and passing the second The mandrel drives a portion of the air curtain at the first end to rotate to further wind the first end to reduce the outer perimeter dimension of the first end; and to remove the second mandrel.

According to a preferred embodiment of the invention, the partial rotation of the air curtain at the first end is effected by the rotation of the second mandrel, and the first end portion can be further wound, thereby reducing the outer peripheral dimension of the tubular body of this portion. Thus, the first end of the air curtain that is wound and/or folded into a tubular body by a packaging method can be mounted to the A-pillar of the vehicle.

According to a preferred embodiment of the invention, the step of further winding and/or folding the first end further comprises the steps of: positioning the second mandrel to the first end before rotating the second mandrel; or by the second The mandrel is frictionally rubbed with the portion of the air curtain at the first end to further wind the first end.

In accordance with a preferred embodiment of the present invention, one way of further winding and/or folding the first end is provided by rotating the second mandrel after the second mandrel is positioned to the first end. This manner makes it easier for the second mandrel to move relative to the first end, thereby making the layers of the air curtain material of the tubular body at the first end more tight, thereby reducing the outer peripheral dimension of the tubular body of this portion. Further, the first end is further wound by mutual friction between the second mandrel and the portion of the air curtain at the first end, providing further winding and/or folding of the first end Another way. In this way, the friction between the second mandrel and the air curtain can be used to make the air curtain materials of the tubular body obtained by winding and/or folding more tight, thereby reducing the outer circumference of the tubular body of this part. size.

According to a preferred embodiment of the present invention, the second mandrel is provided with a hook portion, the portion of the air curtain at the first end portion is provided with a through hole, and the hook portion is able to pass through the through hole such that the second mandrel is positioned to the first The end, or the second mandrel, is provided with a gripping portion for gripping a portion of the air curtain at the first end such that the second mandrel is positioned to the first end.

According to a preferred embodiment of the invention, the air curtain comprises a fixed side that can be mounted to the vehicle, the fixed side being mountable to the vehicle, and on the other side opposite the fixed side, the first end has a gap such that in the deployed state of the air curtain, The dimension of the first end portion in the air curtain width direction is smaller than the dimension of the other portion of the air curtain in the air curtain width direction.

According to a preferred embodiment of the present invention, the notch is a wedge-shaped notch, and in the unfolded state of the air curtain, the dimension of the wedge-shaped notch in the width direction of the air curtain gradually decreases from the first end portion toward the intermediate portion of the air curtain in the longitudinal direction of the air curtain.

According to a preferred embodiment of the present invention, providing the air curtain comprises the steps of removing a portion of the first end portion along the length direction of the air curtain such that, in the deployed state of the air curtain, the dimension of the first end portion in the air curtain width direction is smaller than other portions of the air curtain The size in the width direction of the air curtain.

According to an embodiment of the invention, the first mandrel is a roller and the portion of the air curtain at the first end is wound and/or folded around the roller. The air curtain at the first end is wound by the friction between the air curtain and the roller.

The packaging method of the present invention requires less man-hours and lower costs because it only requires the steps of winding and/or folding without the need for additional means such as an auxiliary fixture.

DRAWINGS

The embodiments may be better understood by reading the drawings in the following detailed description. It is emphasized that the various components are not necessarily drawn to scale. In fact, for clarity of discussion, the size can be arbitrarily increased or decreased. In the drawings, the same reference numerals are used to refer to the same elements.

Figure 1 shows a partial schematic view of an air curtain formed by a prior art method.

Figure 2 shows a schematic view of the fixed side of the air curtain formed by the prior art method.

Fig. 3 shows a partial schematic view of the unfolded state of the air curtain formed by the packaging method according to the present invention.

Figure 4 shows a schematic diagram of the steps of a packaging method in accordance with an embodiment of the present invention.

Figure 5 shows a schematic view of the step of further winding the first end after winding/folding the air curtain into a tubular body, in accordance with an embodiment of the present invention.

Figure 6A shows a perspective view of a second mandrel coupled to a first end, in accordance with an embodiment of the present invention.

Figure 6B illustrates a perspective view of a second mandrel coupled to a first end, in accordance with another embodiment of the present invention.

detailed description

Hereinafter, a packaging method for winding and/or folding an air curtain (more specifically, an air curtain in an unfolded state) into a tubular body according to an embodiment of the present invention will be described with reference to FIGS. 3 to 6B.

First embodiment

A packaging method according to a first embodiment of the present invention will be described with reference to FIGS. 3 and 4. Fig. 3 shows a partial view of the unfolded state of the air curtain. Figure 4 shows a schematic diagram of the steps of a packaging method in accordance with an embodiment of the present invention.

The packaging method according to the first embodiment of the present invention includes the step of providing the air curtain 20 as shown in FIG. In Fig. 3, the longitudinal direction along the plane of the drawing is the width direction in the state in which the air curtain is unfolded, and the lateral direction along the plane of the drawing is the longitudinal direction in the state in which the air curtain is deployed. As shown in Fig. 3, the air curtain 20 includes a first end portion 21 in the longitudinal direction. In the unfolded state of the air curtain 20, the dimension of the first end portion 21 in the air curtain width direction is smaller than the dimension of the other portion of the air curtain 20 in the air curtain width direction. For convenience of explanation, hereinafter, "the dimension of the first end portion in the air curtain width direction" is simply referred to as "the size of the first end portion", and the "the size of the other portion of the air curtain in the air curtain width direction" is simply referred to as "Dimensions of other parts."

In order to form the air curtain as the first end, the size is relatively small, and various ways can be taken. For example, in the case of forming an air curtain by means of non-woven, weaving, etc., the air curtain itself may be formed such that the first end portion 21 is smaller than the other portions; or, when the air curtain is formed by sewing or joining a plurality of pieces of material, The final shape of the air curtain cuts the material into a suitable shape and stitches or joins to obtain a smaller air curtain of the first end portion 21; or alternatively, the first end portion can be removed along the length of the air curtain after forming an air curtain having a substantially uniform width A portion of 21 is obtained to obtain a first end portion 21 having a smaller size.

The air curtain 20 has a fixed side 22 and the fixed side 22 can be fixed to the vehicle. According to an embodiment of the invention, on the other side of the air curtain 20 opposite the fixed side 22, the first end portion 21 has a notch 23, such as the area enclosed by the two broken lines in Fig. 3 and the boundary of the air curtain. The notch 23 is a wedge-shaped notch, and in the unfolded state of the air curtain 20, the dimension of the air curtain 20 in the air curtain width direction gradually decreases from the first end portion 21 to the intermediate portion of the air curtain 20 in the air curtain length direction.

It will be understood by those skilled in the art that as long as the size of the first end portion 21 is made smaller than the size of the other portions, the notch 23 may be opened at any position of the first end portion 21, and the notch 23 may be of any shape. For example, the notch 23 can also be provided at a portion of the fixed side 22 that is not provided with a fixture. For example, the notch 23 is a rectangular incision.

After the foregoing air curtain 20 is provided, the packaging method according to the first embodiment of the present invention further includes a structure in which the air curtain 20 is wound and/or folded into a substantially tubular body. The first end portion 21 is wound and/or folded around a first mandrel 24 having a predetermined size during winding and/or folding of the air curtain into a tubular body. Specifically, for example, FIG. 4 shows a schematic view of a step of winding an air curtain with a winding device. As shown in FIG. 4, first, the first mandrel 24 is placed at the first end portion 21, and then the first end portion 21 is wound around the first mandrel 24. It can be understood that, in the case where the first mandrel 24 is not used, since the material of the air curtain 20 generally has greater flexibility, although the first end portion of the air curtain 20 is small in size, it is wound or folded into After the substantially tubular body, the outer peripheral dimension of the tubular body tends to be substantially the same at the outer peripheral dimension of the first end portion 21 and other portions due to the overall bulkiness. Next, the first end portion 21 is wound around the first mandrel 24. By winding the first end portion 21 around the first mandrel 24, the friction of the air curtain relative to the mandrel and the friction between the air curtains at this position can be utilized, so that the air curtain at that position is more tightly wound, thereby Advantageously, the outer circumference of the air curtain formed as a tubular body at the first end 21 is smaller than the outer circumference of the other portions. Here, the meaning of "winding the first end portion 21 around the first mandrel 24" is to rotate the first end portion 21 relative to the first mandrel 24 in the winding direction, thereby reducing the outer circumference of the air curtain near the end portion. size. It should be understood that the first mandrel 24 may be fixed to rotate the first end portion 21; the first end portion 21 may be fixed, the first mandrel 24 may be rotated; or both may be wound in a relatively rotating manner until The end dimensions are suitable. Thereafter, the first mandrel 24 is removed. The removed first mandrel 24 can be reused. Furthermore, the first mandrel 24 generally has a greater stiffness than the material of the air curtain 20, which may for example be made of plastic, rubber, metal or wood.

The first mandrel 24 is a roller and the portion of the air curtain 20 at the first end 21 can be wrapped and/or folded around the roller. The roller can be a solid roller or a hollow roller. By winding the first end portion 21 around the roller, the friction of the air curtain relative to the roller at this position can be utilized to closely wind the air curtain. Preferably, in order to increase the friction between the outer surface of the roller and the air curtain, the air curtain is smoothly wound, the roller is made of a material having a large frictional force (for example, rubber), or the outer surface of the roller may be coated with a friction coefficient. The high material, or the outer surface of the roller, may be provided with a relief structure (e.g., silica particles).

In addition to this, the size of the first mandrel 24 can be appropriately selected, and should generally be smaller than the intended size of the first end portion 21 of the air curtain 20 formed as a tubular body, for example, selected to be 10% to 80% of the intended size, 30% to 60% of the expected size, or other suitable ratio. It will be understood by those skilled in the art that in the case where the first end portion 21 is wound or folded around the first mandrel 24, the other portions can be simultaneously wound and/or folded without the aid of other mandrels. . Of course, other portions may also be wound and/or folded around another mandrel having a larger diameter than the first mandrel 24.

Preferably, the first mandrel 24 may be cylindrical such that the first end 21 is wrapped around the cylinder. Alternatively, the cross section of the first mandrel 24 may be elliptical, oblate, rectangular, triangular or trapezoidal, or the first mandrel 24 may be flattened such that the first end 21 is wrapped around the first mandrel 24. It will be understood by those skilled in the art that the first mandrel 24 may have other shapes than the aforementioned shapes as long as the first end portion 21 can be wound or folded.

Moreover, it should be understood that the first mandrel 24 can be in any form as long as the first mandrel 24 is capable of causing the air curtain to be partially wound at the first end portion 21. For example, instead of a roller, the first mandrel 24 can be a shaft. The shaft can be solid or hollow depending on the specific needs.

Second embodiment

A packaging method according to a second embodiment of the present invention will be described with reference to Figs. 3, 5, 6A and 6B. The packaging method according to the second embodiment of the present invention is substantially the same as the packaging method of the first embodiment, except that the packaging method of the second embodiment does not include the step of winding the air curtain by means of the first mandrel, but instead The step of further winding and/or folding the first end portion 21 after winding and/or folding the air curtain 20 into a tubular body is such that the outer peripheral dimension of the first end portion 21 is smaller than the outer peripheral dimension of the other portions. Referring to Figure 5, there is shown a schematic view of the step of further winding the first end portion 21 after winding/folding the air curtain into a tubular body. Specifically, the step of further winding the first end portion 21 includes inserting a second mandrel 25 of a predetermined size from the first end portion 21 into the tubular body formed by the air curtain 20, and positioning the second mandrel 25 to the first The end portion 21 rotates the second mandrel 25 and drives the partial rotation of the air curtain 20 at the first end portion 21 by the second mandrel 25 to further wind the first end portion, whereby the air curtain is further rolled at the position Tightening, thereby reducing the outer peripheral dimension of the first end portion 21. Thereafter, the second mandrel 25 is removed. The removed mandrel 27 can be reused.

FIG. 6A shows one way in which the second mandrel 25 is positioned to the first end portion 21. In order to clearly show the relative positional relationship between the two, the manner in which the second mandrel 25 is coupled to the first end portion 21 when the air curtain is deployed is shown. However, it should be understood that the air curtain 21 has been wound into a tubular body before the second mandrel 25 is inserted and positioned to the first end portion 21. Referring again to FIG. 3, the air curtain 20 is provided with a through hole 211 at the first end portion 21. As shown in FIG. 6A, the second mandrel 25 is provided with a hook portion 26. The hook portion 26 can pass through the through hole 21 such that the second mandrel 25 is partially positioned to the first end portion 21, thereby driving a partial rotation of the air curtain 20 at the first end portion 21 when the second mandrel 25 is rotated. . Preferably, the through hole 211 is provided at the first end portion 21 of the air curtain 20 and is disposed at an edge portion on the other side opposite to the fixed side 22. The hook portion 26 may be an L-shape or an arc shape extending from the second mandrel 25.

In the case where the size of the hook portion 26 is large, in order to prevent the cross-sectional dimension of the portion of the second mandrel 25 including the hook portion 26 from being larger than other portions of the second mandrel, the air curtain may not be tightly wound, and The cross-sectional dimension of the portion is formed to be smaller than the other portions of the second mandrel 25. This can be achieved by removing a portion of the material of the second mandrel 25 that is adjacent the portion, or by forming the portion into a reduced shape. For example, FIG. 6A shows an exemplary structure. As shown in FIG. 6A, the cross-sectional dimension of one end portion 251 of the second mandrel 25 is formed to be about half of the cross-sectional dimension of the other portion of the second mandrel 25, and the hook portion 26 is disposed at the end portion. 251. As shown in FIG. 6A, the end portion 251 has a semicircular cross section, and the other portions of the second mandrel 25 have a circular cross section. In this case, preferably, the hook portion 26 is a circular arc-shaped (for example, 1/4 circle) hook portion extending from the end portion 251. Preferably, the arcuate hooks are concentric with the end 251 and have the same radius. Further, in this case, preferably, the hook portion 26 extends from the end portion 251 toward the inner side of the overall contour of the second mandrel 25 instead of extending outward. The end portion of the second mandrel 25 where the hook portion is provided is formed to have a small size, and in addition to avoiding the problem that the hook portion causes the partial size of the mandrel to be excessively large, other advantages can be brought about. For example, it may be more convenient to wind the first end 21 of the air curtain around the second mandrel 25 and more conveniently remove the second mandrel 25 from the air curtain.

FIG. 6B shows another way in which the second mandrel 25 is positioned to the first end portion 21. As shown in FIG. 6B, the second mandrel 25 is provided with a grip portion 27 for gripping a portion near the first end portion 21 of the air curtain 20 such that the second mandrel 25 is positioned to the air curtain 20, thereby When the second mandrel 25 is rotated, the portion at the first end portion 21 of the air curtain 20 is moved. The clamping portion 27 includes a first clamping portion 271 and a second clamping portion 272. There is a gap between the first clamping portion 271 and the second clamping portion 272 to sandwich a portion of the air curtain 20 at the first end portion 21 therebetween to position the second mandrel 25 to the air curtain 20 . One ends of the first clamping portion 271 and the second clamping portion 272 are free ends, and the other ends (ie, connecting ends) of the second clamping portion 272 and the second clamping portion 272 are connected to each other, preferably integrally. The first clamping portion 271 and the second clamping portion 272 may have elasticity such that the free ends of the first clamping portion 271 and the second clamping portion 272 can be pressed against each other. The first clamping portion 271 and the second clamping portion 272 may be substantially semi-cylindrical, and the rectangular surfaces of the two semi-cylindrical bodies face each other. Alternatively, the first clamping portion 271 and the second clamping portion 272 are in the shape of a rectangular parallelepiped, a triangular prism, a semi-ellipsoid or the like. Preferably, the clamping portion 27 is integrally formed with the other portion of the second mandrel 25.

Hereinafter, a specific step of positioning the second mandrel 25 of FIG. 6B to the portion of the air curtain 20 at the first end portion 21 will be described. First, the free ends of the first clamping portion 271 and the second clamping portion 272 are separated such that the gap therebetween is greater than the thickness of the air curtain to accommodate the first end portion 21. Next, on the other side of the first end portion 21 opposite to the fixed side, the air curtain is inserted from the free end of the nip portion 27 through the gap to the joint end. Finally, the free ends of the first clamping portion 271 and the second clamping portion 272 are loosened, so that the first clamping portion 271 and the second clamping portion 272 closely hold the air curtain. By the friction between the first clamping portion 271 and the second clamping portion 272 and the air curtain 20 and the pressure of the first clamping portion 271 and the second clamping portion 272 against the air curtain 20, the second mandrel 25 drives the air curtain The portion at the first end 20 is rotated to further wind the first end, and during the further winding of the first end portion 21, the second mandrel 25 is less likely to move relative to the first end portion 21.

The size of the second mandrel 25 can be suitably selected, and should generally be smaller than the intended size of the first end portion 21 of the air curtain 20 formed as a tubular body, for example, selected to be 10% to 80% of the intended size, the desired size 30% to 60%, or other suitable ratio. Preferably, the second mandrel 25 is a cylinder. It should be understood that the second mandrel 25 may be other shapes configured to be able to further wind the first end portion 21, for example, the cross section of the second mandrel 25 is elliptical, oblate, rectangular, triangular or trapezoidal, etc. The two mandrel 25 is a flat body. Furthermore, the second mandrel 25 can be solid or hollow, depending on the particular needs.

However, it will be understood by those skilled in the art that other means may be employed as long as the second mandrel 25 is caused to rotate a portion of the air curtain 20 at the first end portion 21 to further wind the first end portion 21. For example, a second mandrel 25 of a predetermined size is inserted into the tubular body formed by the air curtain 20 from the first end portion 21, the second mandrel 25 is rotated, and the outer surface of the second mandrel 25 is rubbed against the air curtain 20 The first end portion 21 is further wound. Thereby the air curtain is further wound at this position, thereby reducing the outer peripheral size of the first end portion 21.

Moreover, it will be understood by those skilled in the art that other steps may be employed as long as the first end portion 21 is further wound such that the outer peripheral dimension of the first end portion 21 is small. For example, instead of using the second mandrel, a circumferential force varying in a direction may be applied from the outer peripheral surface of the tubular body at the first end portion 21 of the air curtain 20 that has been wound and/or folded into a tubular body, thereby directly rolling further Around the first end portion 21, the size of the first end portion is reduced. Alternatively, in the case of manual, a finger can be inserted from the first end portion 21 into the tubular body to manually wind the air curtain 20 from the inner circumference of the tubular body.

In other alternatives, the first end portion 21 can be further folded. For example, since the size of the first end portion 21 is smaller than that of the other portions, the first end portion 21 of the air curtain 20 formed as a tubular body is easily folded. By further folding the first end portion 21, for example, simply folded in half, the outer peripheral dimension of the first end portion 21 is made smaller than the outer peripheral dimension of the other portion in a simple manner. According to an embodiment of the invention, the air curtain 20 is wound and/or folded manually using a device that winds or folds the air curtain 20.

In yet another alternative, the first end portion 21 can be further wound after further folding the first end portion 21. Alternatively, after the first end portion 21 is further wound, the first end portion 21 is further folded. Thereby the size of the first end portion 21 is further reduced.

In summary, in the second embodiment, the size of the first end portion 21 is reduced by further winding and/or folding the first end portion 21 after winding and/or folding the air curtain into a tubular body.

Other embodiments

In the second embodiment, after the air curtain is formed into a tubular body, the first end portion 21 is further wound and/or folded in place of the first embodiment in which the first end portion 21 is wound around the mandrel and / or the step of folding the air curtain. However, these two steps can also be employed in the process of packaging the air curtain to further reduce the size of the first end portion 21.

In the first embodiment, an embodiment is provided in which the tubular body is formed by winding from the air curtain side around the mandrel with the first end portion 21 surrounding the first mandrel 24. However, the invention is not limited thereto. For example, the tubular body can be formed by folding or otherwise folding the air curtain back or forth, or the tubular body can be formed, for example, by folding and winding, for example, first folded around the mandrel and then wound. The outer peripheral shape of the tubular body is not limited to a circular shape, and may be a flat shape or an irregular shape affected by winding and/or folding.

In the second embodiment, an embodiment in which the second mandrel 25 is positioned to the portion of the air curtain 21 at the first end portion 21 by the hook portion 26 and the nip portion 27 is given. However, the invention is not limited thereto. For example, it can be by means of gluing, bonding, snapping, magnetic attraction, or the like. Alternatively, the air curtain is provided with an elastic ferrule, and the second mandrel 25 can be inserted into the elastic ferrule, thereby clamping the second mandrel 25 by elastic force, so that the second mandrel 25 is not easily moved relative to the first end portion 21. .

In the first embodiment, an embodiment in which the air curtain is tightly wound around the first mandrel 24 by friction between the first mandrel 24 and the air curtain 20 is described. However, the invention is not limited thereto. For example, the first mandrel 24 may be preferably positioned to a portion of the first end 21 prior to winding the first end 21 around the first mandrel 24. During the winding of the first end portion 21 of the air curtain around the first mandrel by friction, when the frictional force is low, the first mandrel 24 is likely to move relative to the first end portion 21. Specifically, the first mandrel 24 may move back and forth in the length direction of the air curtain and may be inclined in the wound tubular body. This results in a large gap between the first mandrel 24 and the air curtain wrapped around it, which is disadvantageous for winding the air curtain more tightly around the first mandrel 24 at the first end portion 21. By positioning the first mandrel 24 to a portion of the first end portion 21, the air curtain is more reliably wound around the first mandrel or roller. Therefore, the manner in which the first mandrel 24 is positioned to the first end portion 21 is similar to the manner in which the second mandrel 25 is positioned to the first end portion 21 as described in the second embodiment, and details are not described herein again.

The packaging structure of the air curtain 20 obtained according to the method of the present invention can be installed along a specific curve extending in the accommodation space along the A-pillar, the roof rail and the C-pillar of the vehicle, wherein the first end is substantially along the vehicle A column is installed. Due to the small outer circumference of the first end, it is possible to accommodate a smaller available space around the A-pillar. Moreover, the packaging method requires less man-hours and lower costs because it only requires the steps of winding and/or folding without the need for additional means such as an auxiliary fixture.

The exemplary embodiments of the present invention have been described with reference to the drawings, but the present invention is not limited to the specific embodiments described above, and many other embodiments are possible, and the scope of the present invention should be The requirements and their equivalents are defined.

Claims (10)

A packaging method for winding and/or folding an air curtain into a tubular body, wherein The packaging method includes the step of providing an air curtain, the air curtain including a first end, in the unfolded state of the air curtain, a dimension of the first end in the air curtain width direction is smaller than other portions of the air curtain in the air curtain Size in the width direction, and The packaging method is characterized by further comprising at least one of the following steps: Winding and/or folding the first end around a first mandrel having a predetermined size during winding and/or folding of the air curtain into a tubular body; After winding and/or folding the air curtain into a tubular body, the first end is further wound and/or folded, wherein By the packaging method, the outer peripheral dimension of the first end portion of the air curtain that is wound and/or folded into a tubular body is made smaller than the outer peripheral dimension of the other portion of the air curtain. The packaging method according to claim 1, wherein the step of winding and/or folding the first end portion around the first mandrel comprises the steps of: Winding and/or folding the first end about the first mandrel; The first mandrel is removed. The packaging method according to claim 1, wherein the step of further winding and/or folding the first end portion comprises the steps of: Inserting a second mandrel having a predetermined size from the first end into the tubular body at least partially, rotating the second mandrel, and driving the air curtain at the first end by the second mandrel a portion of the portion rotates to further wind the first end to reduce a peripheral dimension of the first end; The second mandrel is removed. The packaging method according to claim 3, wherein the further winding and/or folding of the first end further comprises the steps of: Positioning the second mandrel to the first end before rotating the second mandrel; or The first end is further wound by mutual friction between the second mandrel and a portion of the air curtain at the first end. The packaging method according to claim 4, wherein the second mandrel is provided with a hook portion, a portion of the air curtain at the first end portion is provided with a through hole, and the hook portion can be worn Passing the through hole to position the second mandrel to the first end, or The second mandrel is provided with a clamping portion for clamping a portion of the air curtain at the first end such that the second mandrel is positioned to the first end. The packaging method according to any one of claims 1 to 5, wherein the first end of the air curtain wound and/or folded into a tubular body by the packaging method can be mounted to an A-pillar of a vehicle . The packaging method according to any one of claims 1 to 5, wherein the air curtain comprises a fixed side mountable to a vehicle, the fixed side being mountable to a vehicle on the other side opposite to the fixed side The first end portion has a notch such that, in the unfolded state of the air curtain, a dimension of the first end portion in a width direction of the air curtain is smaller than a dimension of other portions of the air curtain in a width direction of the air curtain. The packaging method according to claim 7, wherein the notch is a wedge-shaped notch, and in the unfolded state of the air curtain, a dimension of the wedge-shaped notch in a width direction of the air curtain is from the first end portion in a longitudinal direction of the air curtain The portion of the air curtain is gradually reduced. The packaging method according to any one of claims 1 to 5, wherein providing the air curtain comprises the steps of: Removing a portion of the first end portion along a length direction of the air curtain such that, in an unfolded state of the air curtain, a dimension of the first end portion in a width direction of the air curtain is smaller than a width of other portions of the air curtain in a width direction of the air curtain size. The packaging method according to any one of claims 1 to 5, wherein the first mandrel is a roller, and a portion of the air curtain at the first end is wound around the roller and/or Or fold.

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