Patent Description:
Ribbons, such as elastic ribbon and buffer ribbon, are widely used in the textile industry and the daily life, especially in the clothing industry.

<CIT> describes a woven fabric having both a portion that is easily deformed and a portion that is hardly deformed. The woven fabric is woven with a warp yarn and a weft yarn and has a dense segment in which the placement pitch of the weft yarn is dense and a coarse segment in which the placement pitch of the weft yarn is coarser than that of the dense segment. The weft yarn is continuous from the dense segment to the coarse segment. The woven fabric may be tubular. When a force is applied in a direction in which the length of the tubular woven fabric is contracted, coarse segment is deformed, and the fabric is deformed into a below-like form.

However, in the related weaving technology, the elastic belt and buffer belt should be woven separately, then the elastic belt and buffer belt are combined to form the energy absorber. The present invention describes sub-woven belt which comprises a first face yarn layer, a first bottom yarn layer, a first elastic belt, and a first suture and which are specific interwoven with each other.

In view of the above problems, the present disclosure provides an energy absorber, a method for weaving the energy absorber, and a weaving device, aiming to eliminate a subsequent sewing operation, save ribbon materials, reduce labor costs, and improve the beauty of the energy absorber through an integrated weaving mode.

The technical solution adopted in the present disclosure is set out in claim <NUM>. According to this solution an energy absorber is provided which includes a first split section, a first single strand section, a second split section, a second single strand section, and a third split section, and the third split section are connected in sequence, the first split section and the third split section each include at least two sub-woven belts, and at least two sub-woven belts are separated from each other, at least one of the at least two sub-woven belts is capable of being stretched and contracted under an action of an external force, the first split section, the first single strand section, the second split section, the second single strand section, and the third split section are integrally woven.

Further, the first split section includes a first sub-woven belt and a second sub-woven belt, a first end of the first sub-woven belt and a first end of the second sub-woven belt are connected to the first single strand section, and the first sub-woven belt is capable of being stretched and contracted under the action of the external force.

Further, the first sub-woven belt includes a first face yarn layer, a first bottom yarn layer, a first elastic belt, and a first suture, the first face yarn layer is opposite to the first bottom yarn layer, and the first elastic belt is interwoven with the first face yarn layer and the first bottom yarn layer at intervals according to a first preset interweaving density, the first suture is interwoven with the first face yarn layer and the first bottom yarn layer.

Further, the first elastic belt may be interwoven with the first face yarn layer to form a first area, a second area in the first bottom yarn layer corresponding to the first area is curved due to a contraction of the first elastic belt, the first elastic belt is interwoven with the first bottom yarn layer to form a third area, and a fourth area in the first face yarn layer corresponding to the third area is curved due to the contraction of the first elastic belt.

Further, the first single strand section may include a third sub-woven belt, a fourth sub-woven belt, a second elastic belt, and a second suture, the third sub-woven belt is connected to the first sub-woven belt, and the fourth sub-woven belt is connected to the second sub-woven belt, the second elastic belt is connected to the first elastic belt, the third sub-woven belt is interwoven with the fourth sub-woven belt by the second suture, the second elastic belt is arranged on a side of the third sub-woven belt away from the fourth sub-woven belt.

Further, an interweaving density of the second suture may be decreased along a split direction of the first split section.

Further, the second split section may include a fifth sub-woven belt, a sixth sub-woven belt, and a third elastic belt, the fifth sub-woven belt is connected to the third sub-woven belt, the sixth sub-woven belt is connected to the fourth sub-woven belt, the third elastic belt is connected to the second elastic belt, the fifth sub-woven belt is separated from the sixth sub-woven belt, and the third elastic belt is interwoven with the fifth sub-woven belt.

Further, the fifth sub-woven belt may be curved relative to the sixth sub-woven belt.

Another technical solution adopted in the present disclosure is to provide a method according to claim <NUM> for weaving an energy absorber, which includes: weaving a first split section, a first single strand section, a second split section, a second single strand section, and a third split section in sequence, the first split section and the third split section each include at least two sub-woven belts, the at least two sub-woven belts are separated from each other, at least one of the at least two sub-woven belts is capable of being stretched and contracted under an action of an external force, the first split section, the first single strand section, the second split section, the second single strand section, and the third split section are integrally woven.

A further technical solution adopted in the present disclosure is to provide a weaving device, the weaving device is configured to perform the method to weave the energy absorber.

The energy absorber of the present disclosure includes a first split section, a first single strand section, a second split section, a second single strand section, and a third split section which are connected in sequence. The first split section and the third split section each include at least two sub-woven belts, the at least two sub-woven belts are separated from each other, at least one of the at least two sub-woven belts is capable of being stretched and contracted under an action of an external force, the first split section, the first single strand section, the second split section, the second single strand section, and the third split section are integrally woven. Through the above method, the first split section and the third split section which are capable of being stretched and contracted are woven with the first single strand section, the second split section, and the second single strand section which have a buffer function together, so as to eliminate a subsequent sewing operation, save ribbon materials, reduce labor costs, and improve the beauty of the energy absorber through an integrated weaving mode. The energy absorber of the present disclosure can be used for personal fall protector and high-altitude rescue protector.

To describe the technical solutions in the embodiments of the present disclosure more clearly, the following briefly introduces the accompanying drawings required for describing the embodiments. Apparently, the accompanying drawings in the following description show only some embodiments of this application, and a person of ordinary skill in the art may still derive other embodiments within the scope of the claims.

The technical solution in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure. It will be appreciated that the specific embodiments described herein are only used to explain the present disclosure, but not to limit the present disclosure. In addition, for ease of description, the drawings only show a part of the structure related to the present disclosure instead of all of the structure. Based on the embodiments in present disclosure, all other embodiments obtained by a person of ordinary skill in the art without any creative work shall fall within the protection scope of the present disclosure.

"Embodiments" herein means that specific features, specific structures, or specific characteristics described in the embodiments may be included in at least one embodiment of the present disclosure. The "embodiments" in various places of the specification does not necessarily refer to the same embodiment, nor refer to independent or alternative embodiments mutually exclusive with other embodiments. Those skilled in the art clearly and implicitly understand that the embodiments described herein can be combined with other embodiments.

<FIG> is a schematic structural view of an energy absorber according to an embodiment of the present disclosure. Referring to <FIG>, the energy absorber includes a first split section <NUM>, a first single strand section <NUM>, a second split section <NUM>, a second single strand section <NUM>, and a third split section <NUM>.

The first split section <NUM>, the first single strand section <NUM>, the second split section <NUM>, the second single strand section <NUM>, and the third split section <NUM> are woven by warp yarns and weft yarns according to a preset organizational structure.

The first split section <NUM> includes at least two sub-woven belts, the at least two sub-woven belts are separated from each other, at least one of the at least two sub-woven belts is capable of being stretched and contracted under an action of an external force. For example, when a direction of the external force is along a length direction of the first split section <NUM>, the sub-woven belt can stretch and contract along the length direction of the first split section <NUM> under the action of the external force, and the sub-woven belt becomes longer; and when the external force is removed, the sub-woven belt returns to its normal state. The third split section <NUM> is similar to the first split section <NUM>, and can be woven in the same way as the first split section <NUM>.

In the first split section <NUM>, the stretchable sub-woven belt is woven with elastic fabric. So that the stretchable sub-woven belt has elasticity, and can be deformed and lengthened under the action of the external force. The first split section <NUM>, the first single strand section <NUM>, the second split section <NUM>, the second single strand section <NUM>, and the third split section <NUM> are integrally woven.

Specifically, referring to <FIG>, the first split section <NUM> includes a first sub-woven belt <NUM> and a second sub-woven belt <NUM>. A first end of the first sub-woven belt <NUM> and a first end of the second sub-woven belt <NUM> are connected to the first single strand section <NUM>, and the first sub-woven belt is capable of being stretched and contracted under the action of the external force.

Specifically, referring to <FIG>, the first sub-woven belt <NUM> includes a first face yarn layer <NUM>, a first bottom yarn layer <NUM>, a first elastic belt <NUM>, and a first suture <NUM>. The first face yarn layer <NUM> is opposite to the first bottom yarn layer <NUM>, and the first elastic belt <NUM> is interwoven with the first face yarn layer <NUM> and the first bottom yarn layer <NUM> at intervals according to a first preset interweaving density, the first suture <NUM> is interwoven with the first face yarn layer <NUM> and the first bottom yarn layer <NUM>. In some embodiments, the second sub-woven belt <NUM> also includes a suture.

Referring to <FIG>, the first elastic belt <NUM> is interwoven with the first face yarn layer <NUM> to form a first area A, a second area B in the first bottom yarn layer <NUM> corresponding to the first area A is curved due to a contraction of the first elastic belt <NUM>, the first elastic belt <NUM> is interwoven with the first bottom yarn layer <NUM> to form a third area C, and a fourth area D in the first face yarn layer <NUM> corresponding to the third area C is curved due to the contraction of the first elastic belt <NUM>. It can be understood that, as shown in <FIG>, when the first elastic belt <NUM> is interwoven with the first face yarn layer <NUM> to form the first area A, the first elastic belt <NUM> does not existed in the second area B of the first bottom yarn layer <NUM>. When the first elastic belt <NUM> is interwoven with the first bottom yarn layer <NUM> form the third area C, the first elastic belt <NUM> does not existed in the fourth area D of the first face yarn layer <NUM>. The number of first elastic belt <NUM> can be set according to actual needs, and there is no limitation here. Therefore, the area without the first elastic belt <NUM> is curved with the contraction of the first elastic belt <NUM>. The third split section <NUM> is similar to the first split section <NUM>, so it's no need to repeat here.

Referring to <FIG>, the first single strand section <NUM> includes a third sub-woven belt <NUM>, a fourth sub-woven belt <NUM>, a second elastic belt <NUM>, and a second suture <NUM>, the third sub-woven belt <NUM> is connected to the first sub-woven belt, and the fourth sub-woven belt is connected to the second sub-woven belt, the second elastic belt is connected to the first elastic belt, the third sub-woven belt is interwoven with the fourth sub-woven belt by the second suture <NUM>, the second elastic belt is arranged on a side of the third sub-woven belt away from the fourth sub-woven belt. The second suture <NUM> is connected to the first suture <NUM>. In some embodiments, the second suture <NUM> is the first suture <NUM>.

An interweaving density of the second suture <NUM> is decreased along a split direction of the first split section, so that different area of the ribbon has different tearing buffer force.

Referring to <FIG>, the second split section <NUM> includes a fifth sub-woven belt <NUM>, a sixth sub-woven belt <NUM>, and a third elastic belt <NUM>, the fifth sub-woven belt <NUM> is connected to the third sub-woven belt, the sixth sub-woven belt <NUM> is connected to the fourth sub-woven belt, the third elastic belt <NUM> is connected to the second elastic belt, the fifth sub-woven belt <NUM> is separated from the sixth sub-woven belt <NUM>, and the third elastic belt <NUM> is interwoven with the fifth sub-woven belt <NUM>.

The fifth sub-woven belt <NUM> is curved relative to the sixth sub-woven belt <NUM>.

It can be understood that the first split section <NUM>, the first single strand section <NUM>, the second split section <NUM>, the second single strand section <NUM>, and the third split section <NUM> all have a face yarn layer, a bottom yarn layer, and a suture. The elastic belt may be a rubber belt.

Different from the existing art, the energy absorber of the present disclosure includes a first split section, a first single strand section, a second split section, a second single strand section, and a third split section which are connected in sequence. The first split section and the third split section each include at least two sub-woven belts, the at least two sub-woven belts are separated from each other, at least one of the at least two sub-woven belts is capable of being stretched and contracted under an action of an external force, the first split section, the first single strand section, the second split section, the second single strand section, and the third split section are integrally woven. Through the above method, the first split section and the third split section which are capable of being stretched and contracted are woven with the first single strand section, the second split section, and the second single strand section which have a buffer function together, so as to eliminate a subsequent sewing operation, save ribbon materials, reduce labor costs, and improve the beauty of the energy absorber through an integrated weaving mode. The energy absorber of the present disclosure can be used for personal fall protector and high-altitude rescue protector.

Referring to <FIG> and <FIG>, the energy absorber of the present disclosure is described as below:.

The energy absorber as shown in <FIG> can be woven by weaving warp yarns and weft yarns through two weft needles and two sheds.

Specifically, a main shaft of the weaving device is rotated to drive a steel buckle connecting rod group to eccentrically move, so that a steel buckle seat swings back and forth. When swinging back and forth, the steel buckle seat drives a weft aluminium hand to make an arc swing, a weft needle is fixed on the weft aluminium hand. The weft aluminium hand swings, so that the weft needle brings the weft yarn to pass through the shed and hook into the weaving needle, and the two weft needles pass through the upper and lower sheds respectively. As shown in <FIG>, the weft needle <NUM> brings the weft yarn <NUM> to pass through the shed E and hook into the weaving needle, and the weft needle <NUM> passes through the shed E for weaving. And the weft needle <NUM> brings the weft yarn <NUM> to pass through the shed F and hook into the weaving needle, and the weft needle <NUM> passes through the shed F for weaving.

The sheds are openings created by the up and down movements of the warp yarn. The present disclosure has two sheds which are formed by the drive of the brown frame.

In some embodiments, when weaving the first single strand section or the second single strand section, all warp yarns and elastic belts are driven by the brown frame to form two sheds. The upper layer belt and the bottom layer belt are respectively interwoven with warp yarn and weft yarn to form two ribbons. The suture rises and falls, and interweaves with two layers of weft yarn to suture the two ribbons together. Different areas have different suturing densities, so that different areas of the ribbon have different tearing buffer force. As shown in <FIG>, when suturing, the elastic belt does not interweave with the warp yarn and the weft yarn, and always be above the upper layer belt. Specifically, referring to <FIG>, the brown frame (not shown) is configured to separate the first face yarn layer <NUM> from the first bottom yarn layer <NUM> to form a shed E, and separate the second face yarn layer <NUM> from the second bottom yarn layer <NUM> to form a shed F. The structure of the first single strand section or the second single strand section is shown in <FIG>.

In some embodiments, when weaving the first split section or the third split section, the suture is interwoven with the upper layer weft yarn and bottom layer weft yarn independently, and the elastic belt is interwoven back and forth with the face yarn layer and the bottom yarn layer of the upper layer belt. When the elastic belt is interwoven with the face yarn layer, and not interwoven with the bottom yarn layer, the face yarn layer of the ribbon is capable of being stretched and contracted as interweaving with the elastic belt, and the bottom yarn layer is not capable of being stretched and contracted, so the face yarn layer of the ribbon is curved downward. When the elastic belt is interwoven with the bottom yarn layer and not interwoven with the face yarn layer, the bottom yarn layer of the ribbon is capable of being stretched and contracted as interweaving with the elastic belt, the face yarn layer is not capable of being stretched and contracted, so that the bottom yarn layer is curved upward. The bottom ribbon does not have the elastic belt, so the bottom layer belt is a flat ribbon. Specifically, referring to <FIG>, the brown frame (not shown) is configured to separate the first face yarn layer <NUM> from the first bottom yarn layer <NUM> to form a shed E, and configured to separate the second face yarn layer <NUM> from the second bottom yarn layer <NUM> to form shed F. The structure of the first split section or the second split section is shown in <FIG>.

In some embodiments, when the second split section is woven, the suture rises and falls to independently interweave with the upper layer weft yarn and bottom layer weft yarn, instead of interweaving with the upper layer weft yarn and bottom layer weft yarn simultaneously, so the second split section has a split. When the second split section is woven, the elastic belt is interwoven with the upper layer belt and the weaving density of the elastic belt and the upper layer weft yarn and the bottom layer weft yarn is high within a unit distance, so that the elastic belt can be tightly interwoven with the weft yarns, and the second split section is not prone to loosen. Specifically, referring to <FIG>, the brown frame (not shown) is configured to separate the first face yarn layer <NUM> from the first bottom yarn layer <NUM> to form shed E, and separate the second face yarn layer <NUM> from the second bottom yarn layer <NUM> to form shed F. The structure of the second split section is shown in <FIG>.

In some embodiments, the first single strand section or the second single strand section is woven according to the organizational structure as shown in <FIG>. The first split section or the third split section is woven according to the organizational structure as shown in <FIG>. The second split section is woven according to the organizational structure as shown in <FIG>.

Further, the warp yarns and the weft yarns are interwoven by using two weft needles and two sheds to form two ribbons, and the suture is configured to connect the two ribbons. Different areas have different suturing densities, so that different areas of the ribbons have different buffering forces. The elastic belt and the single layer belt are used as organization connector, for integrally weaving the energy absorber.

<FIG> is a flow chart of a method for weaving an energy absorber according to an embodiment of the present disclosure, the method includes the following steps:
step <NUM>: weaving a first split section, a first single strand section, a second split section, a second single strand section, and a third split section in sequence.

The first split section and the third split section each include at least two sub-woven belts, the at least two sub-woven belts are separated from each other, at least one of the at least two sub-woven belts is capable of being stretched and contracted under an action of an external force, the first split section, the first single strand section, the second split section, the second single strand section, and the third split section are integrally woven.

In some embodiments, the first split section <NUM> includes a first sub-woven belt <NUM> and a second sub-woven belt <NUM>. A first end of the first sub-woven belt <NUM> and a first end of the second sub-woven belt <NUM> are connected to the first single strand section <NUM>, and the first sub-woven belt is capable of being stretched and contracted under the action of the external force.

In some embodiments, the first sub-woven belt <NUM> includes a first face yarn layer <NUM>, a first bottom yarn layer <NUM>, a first elastic belt <NUM>, and a first suture <NUM>. The first face yarn layer <NUM> is opposite to the first bottom yarn layer <NUM>, and the first elastic belt <NUM> is interwoven with the first face yarn layer <NUM> and the first bottom yarn layer <NUM> at intervals according to a first preset interweaving density, the first suture <NUM> is interwoven with the first face yarn layer <NUM> and the first bottom yarn layer <NUM>.

In some embodiments, the first elastic belt <NUM> is interwoven with the first face yarn layer <NUM> to form a first area A, a second area B in the first bottom yarn layer <NUM> corresponding to the first area A is curved due to a contraction of the first elastic belt <NUM>, the first elastic belt <NUM> is interwoven with the first bottom yarn layer <NUM> to form a third area C, and a fourth area D in the first face yarn layer <NUM> corresponding to the third area C is curved due to the contraction of the first elastic belt <NUM>.

In some embodiments, the first single strand section <NUM> includes a third sub-woven belt <NUM>, a fourth sub-woven belt <NUM>, and a second elastic belt <NUM>, the third sub-woven belt <NUM> is connected to the first sub-wo ven belt <NUM>, and the fourth sub-woven belt <NUM> is connected to the second sub-woven belt <NUM>, the second elastic belt <NUM> is connected to the first elastic belt <NUM>, the third sub-woven belt <NUM> is interwoven with the fourth sub-woven belt <NUM> by the second suture <NUM>, the second elastic belt <NUM> is arranged on a side of the third sub-woven belt <NUM> away from the fourth sub-woven belt <NUM>.

In some embodiments, an interweaving density of the second suture <NUM> is decreased along a split direction of the first split section <NUM>.

In some embodiments, the second split section <NUM> includes a fifth sub-woven belt <NUM>, a sixth sub-woven belt <NUM>, and a third elastic belt <NUM>, the fifth sub-woven belt <NUM> is connected to the third sub-woven belt, the sixth sub-woven belt <NUM> is connected to the fourth sub-woven belt, the third elastic belt <NUM> is connected to the second elastic belt <NUM>, the fifth sub-woven belt <NUM> is separated from the sixth sub-woven belt <NUM>, and the third elastic belt <NUM> is interwoven with the fifth sub-woven belt <NUM>.

In some embodiments, the fifth sub-wo ven belt <NUM> is curved relative to the sixth sub-woven belt <NUM>.

In some embodiments, the energy absorber as shown in <FIG> can be woven according to the organizational structure as shown in <FIG>.

Different from the existing art, the method for weaving the energy absorber of the present disclosure can be used to weave the energy absorber as recited in the above-mentioned embodiments. Through the above method, the first split section <NUM> and the third split section <NUM> which are capable of being stretched and contracted are interwoven with the first single strand section <NUM> and the second split section <NUM> and the second single strand section <NUM> which have the buffer function, for eliminating a subsequent sewing operation, saving ribbon materials, reducing labor costs, and improving the beauty of the energy absorber through an integrated weaving mode. The energy absorber of the present disclosure can be used for personal fall protector and high-altitude rescue protector.

In some embodiments, the present disclosure further provides a weaving device. The weaving device is configured to perform the method as mentioned above to weave the energy absorber as shown in <FIG> according to the organization structure as shown in <FIG>.

Claim 1:
An energy absorber, comprising: a first split section (<NUM>), a first single strand section (<NUM>), a second split section (<NUM>), a second single strand section (<NUM>), and a third split section (<NUM>), the first split section (<NUM>), the first single strand section (<NUM>), the second split section (<NUM>), the second single strand section (<NUM>), and the third split section (<NUM>) being connected in sequence,
wherein, the first split section (<NUM>) and the third split section (<NUM>) each include at least two sub-woven belts, the at least two sub-woven belts are separated from each other, at least one of the at least two sub-woven belts is capable of being stretched and contracted under an action of an external force,
wherein the first split section (<NUM>), the first single strand section (<NUM>), the second split section (<NUM>), the second single strand section (<NUM>), and the third split section (<NUM> are integrally woven,
wherein the first split section (<NUM>) comprises a first sub-woven belt (<NUM>) and a second sub-woven belt (<NUM>), a first end of the first sub-woven belt (<NUM>) and a first end of the second sub-woven belt (<NUM>) are connected to the first single strand section (<NUM>), and the first sub-woven belt (<NUM>) is capable of being stretched and contracted under the action of the external force,
characterized in that the first sub-woven belt (<NUM>) comprises a first face yarn layer (<NUM>), a first bottom yarn layer (<NUM>), a first elastic belt (<NUM>), and a first suture (<NUM>); wherein the first face yam layer (<NUM>) is opposite to the first bottom yarn layer (<NUM>), and the first elastic belt (<NUM>) is interwoven with the first face yarn layer (<NUM>) and the first bottom yarn layer (<NUM>) at intervals according to a first preset interweaving density, the first suture (<NUM>) is interwoven with the first face yarn layer (<NUM>) and the first bottom yarn layer (<NUM>).