CN218942443U - Pull head - Google Patents

Abstract

The utility model provides a slider capable of suppressing damage to a fastener tape during sliding. The pull head includes: an upper wing plate; a lower wing plate arranged opposite to the upper wing plate; and a guide post connecting the front ends of the upper blade and the lower blade, wherein the lower blade has a pair of left and right lower flanges extending from a pair of left and right lower blade side edges of the lower blade toward the upper blade, the pair of left and right lower flanges of the lower blade have lower flange parallel portions parallel to each other, and a lower flange tapered portion tapered toward the rear end side of the lower flange in a width dimension between the pair of left and right lower flanges, and the pair of left and right lower flanges are each provided with a lower inclined surface portion provided on a top portion of the lower flange facing the upper blade and crossing the lower flange parallel portion and the lower flange tapered portion and inclined downward toward the outer side in the width direction of the lower flange.

Description

Pull head

Technical Field

The utility model relates to the technology in the field of zippers, in particular to a slider.

Background

A conventional slide fastener generally includes a pair of fastener stringers (fastener stringers) composed of a strip-shaped fastener tape and a plurality of fastener elements (elements) arranged on the fastener tape, and a slider attached to the fastener stringers to open or close the fastener elements by sliding, and may further be provided with a tab (tab pull) as required. Further, the slider generally includes an upper blade, a lower blade, and a guide post connecting the tips of the upper blade and the lower blade. The upper wing plate and the lower wing plate may be respectively provided with an upper flange and a lower flange extending opposite to each other to form a side wall structure of the slider and accommodate a plurality of fastener elements, and the fastener tape is passed out from a space between the upper flange and the lower flange, thereby mounting the slider on the fastener chain. However, when the slider slides on the fastener chain, the upper flange and the lower flange of the slider are easily brought into contact with the fastener tape to generate friction. In particular, when a slide fastener is attached to a bag, clothing, or the like for use, a user often pulls a handle connected to a slider and drives the slider to slide. In this case, since a longitudinal pulling force (in particular, an upward pulling force) is applied to the slider, the end portion of the lower flange provided to the lower wing plate is more likely to contact with the fastener tape to cause friction, thereby causing damage or even breakage of the fastener tape.

[ Prior Art literature ]

[ patent literature ]

[ patent document 1] Japanese patent No. 5989103

Disclosure of Invention

The utility model provides a slider capable of suppressing damage to a fastener tape during sliding.

The present utility model provides a slider comprising: an upper wing plate; a lower wing plate arranged opposite to the upper wing plate; and a guide post connecting the front ends of the upper blade and the lower blade, wherein the lower blade has a pair of left and right lower flanges extending from a pair of left and right lower blade side edges of the lower blade toward the upper blade, the pair of left and right lower flanges of the lower blade have lower flange parallel portions parallel to each other, and a lower flange tapered portion tapered toward the rear end side of the lower flange in a width dimension between the pair of left and right lower flanges, and the pair of left and right lower flanges are each provided with a lower inclined surface portion provided on a top portion of the lower flange facing the upper blade and crossing the lower flange parallel portion and the lower flange tapered portion and inclined downward toward the outer side in the width direction of the lower flange.

In an embodiment of the present utility model, the lower slope portion is provided on the top portion of the lower flange at a portion corresponding to a front end side of the lower flange and an outer side in a width direction of the lower flange.

In an embodiment of the present utility model, the lower flange has a lower flange planar portion corresponding to the top portion, and a lower flange side portion corresponding to the outer side in the width direction, the lower slope portion being formed to correspond to a chamfer between the lower flange planar portion and the lower flange side portion.

In an embodiment of the present utility model, the upper blade has a pair of left and right upper flanges extending from a pair of left and right upper blade side edge portions of the upper blade toward the lower blade, the pair of left and right upper flanges of the upper blade have upper flange parallel portions parallel to each other, and an upper flange tapered portion tapered toward a rear end side of the upper flange in a width dimension between the pair of left and right upper flanges, and each of the pair of left and right upper flanges is provided with an upper slope portion provided at a bottom portion of the upper flange facing the lower blade and crossing the upper flange parallel portion and the upper flange tapered portion, and inclined upward toward an outer side in a width direction of the upper flange.

In an embodiment of the present utility model, the upper slope portion is provided on the bottom portion of the upper flange at a portion corresponding to a front end side of the upper flange and an outer side of the upper flange in a width direction.

In an embodiment of the present utility model, the upper flange has an upper flange planar portion corresponding to the bottom portion, and an upper flange side portion corresponding to the outer side in the width direction, the upper slope portion being formed to correspond to a chamfer between the upper flange planar portion and the upper flange side portion.

In view of the above, in the slider of the present utility model, the pair of right and left lower flanges of the lower blade are each provided with a lower slope portion that is provided on the top of the lower flange and spans the lower flange parallel portion where the slider width is widest and the lower flange tapered portion where the slider width is tapered, and is inclined downward toward the outer side in the width direction of the lower flange. In this way, the lower inclined surface portion can disperse a frictional load generated when a longitudinal pulling force (in particular, an upward pulling force) is applied to the slider. Accordingly, the slider of the present utility model can suppress damage to the fastener tape during sliding.

In order to make the above features and advantages of the present utility model more comprehensible, embodiments accompanied with figures are described in detail below.

Drawings

FIG. 1 is a schematic perspective view of a slider according to an embodiment of the present utility model;

FIG. 2 is a perspective view of the slider of FIG. 1 at other viewing angles;

FIG. 3 is a schematic top view of the slider shown in FIG. 1;

FIG. 4 is a schematic cross-sectional view of the slider shown in FIG. 3 along a width direction;

fig. 5 is a partially enlarged cross-sectional view of the slider shown in fig. 4 at a region R.

Reference numerals illustrate:

100: a pull head;

110: an upper wing plate;

112: the side edge part of the upper wing plate;

114: an upper flange;

114a: an upper flange parallel portion;

114b: an upper flange taper;

114c: a bottom;

114d: an upper flange planar portion;

114e: an upper flange side portion;

116: an upper inclined surface portion;

120: a lower wing plate;

122: a lower wing plate side edge portion;

124: a lower flange;

124a: a lower flange parallel portion;

124b: a lower flange taper;

124c: a top;

124d: a lower flange planar portion;

124e: a lower flange side portion;

126: a lower sloping surface portion;

130: a guide post;

140: a pull tab connecting post;

e1: a front end;

e2: a rear end;

d1, D2: spacing;

s1: a front end side;

s2: a rear end side;

t: a transition region.

Detailed Description

Fig. 1 is a perspective view of a slider according to an embodiment of the present utility model, fig. 2 is a perspective view of the slider shown in fig. 1 at other angles, fig. 3 is a top view of the slider shown in fig. 1, fig. 4 is a cross-sectional view of the slider shown in fig. 3 along a width direction, and fig. 5 is a partially enlarged cross-sectional view of the slider shown in fig. 4 at a region R. The specific structure and application of the slider 100 of the present embodiment will be described with reference to fig. 1 to 5, but the present utility model is not limited thereto and can be adjusted according to the requirements.

Referring to fig. 1 and 2, in the present embodiment, the slider 100 includes an upper wing plate 110, a lower wing plate 120, and a guiding post 130. The lower blade 120 is provided opposite to the upper blade 110, and is, for example, two plates which are formed to face each other in the vertical direction and have substantially the same shape and size. The guide post 130 connects the front ends E1 of the upper wing plate 110 and the lower wing plate 120, and the rear ends E2 of the upper wing plate 110 and the lower wing plate 120 opposite to the front ends E1 are constructed in an open structure. Further, a tab coupling post 140 may be provided above the upper wing plate 110 of the slider 100, and a tab, not shown, may be mounted on the tab coupling post 140 so as to drive the slider 100 to slide on the fastener chain via the tab.

As such, in the case where the slider 100 is mounted on a fastener chain not shown, when the slider 100 slides (i.e., advances) in the front-rear direction toward the front end side S1 corresponding to the front end E1, the fastener chains approach each other toward the rear end E2 of the smaller slider width by the guide of the guide post 130, thereby closing the fastener element, and when the slider 100 slides (i.e., retreats) in the front-rear direction toward the rear end side S2 corresponding to the rear end E2, the fastener chains are separated from each other toward the front end E1 of the larger slider width by the guide of the guide post 130, thereby opening the fastener element. However, the structures of the slider 100 and the fastener chain can be adjusted according to the needs according to the different kinds of the zippers, which is not a limitation of the present utility model.

Specifically, in the present embodiment, as shown in fig. 1 and 2, the lower blade 120 has a pair of left and right lower flanges 124 extending from a pair of left and right lower blade side edges 122 of the lower blade 120 toward the upper blade 110. That is, the lower blade 120 configured in a plate-like structure has a pair of left and right lower blade side edge portions 122 (i.e., side edges of the plate-like structure), and a pair of left and right lower flanges 124 are erected on the pair of left and right lower blade side edge portions 122, so that the pair of left and right lower flanges 124 are configured as a strip-shaped rib protruding toward the upper blade 110. As shown in fig. 1 to 3, the lower blade 120 is provided such that the width of the front end E1 is large and the width thereof is tapered from the position of maximum width toward the rear end side S2 to form the rear end E2 to be small, and such that the pair of left and right lower blade side edge portions 122 are formed such that the width thereof at the front end E1 is large and the width thereof from the position of maximum width toward the rear end side S2 to be close to each other to be gradually tapered. However, the present utility model is not limited thereto, and may be adjusted according to the requirements.

Further, in the present embodiment, as shown in fig. 1 to 3, the left and right pair of lower flanges 124 of the lower wing plate 120 have lower flange parallel portions 124a parallel to each other, and lower flange tapered portions 124b tapered toward the rear end side S2 of the lower flange 124 in the width dimension between the left and right pair of lower flanges 124. That is, the pair of left and right lower flanges 124 are provided corresponding to the positions of the pair of left and right lower flange side edge portions 122 of the lower flange 120 so as to be distant from each other at the front end side S1 and to approach each other from the position of maximum width toward the rear end side S2, whereby there are lower flange parallel portions 124a parallel to each other at the position of maximum width between the pair of left and right lower flanges 124 and lower flange tapered portions 124b tapered toward the rear end side S2 in the width dimension between the pair of left and right lower flanges 124. In this way, the lower flange parallel portion 124a of the lower flange 124 is formed as a portion of the lower blade 120 that is located furthest outward in the width direction (i.e., that protrudes furthest outward in the width direction).

In addition, in the present embodiment, each of the pair of left and right lower flanges 124 is provided with a lower slope portion 126, and the lower slope portion 126 is provided at a top portion 124c (shown in fig. 1, 2 and 4) of the upper wing plate 110 of the lower flange 124, spans the lower flange parallel portion 124a and the lower flange tapered portion 124b (shown in fig. 1 to 3), and slopes downward toward the outer side in the width direction of the lower flange 124 (shown in fig. 1, 2 and 4). That is, the lower slope portion 126 is configured as a slope inclined downward from the top 124c of the lower flange 124 toward the outer side in the width direction of the lower flange 124, and its inclined range spans the lower flange parallel portion 124a and the lower flange tapered portion 124b. In this way, the space between the upper surface of the lower flange 124 and the upper wing plate 110 is enlarged at the lower slope portion 126 (the space D1 between the lower slope portion 126 and the upper wing plate 110 shown in fig. 5 is larger than the space D2 between the top portion 124c and the upper wing plate 110), and the space D1 is gradually enlarged toward the outer side in the width direction.

As is clear from the above-described arrangement, even if a longitudinal tensile force (in particular, an upward tensile force) is applied to the slider 100 during sliding of the slider 100, the arrangement of the lower slope portion 126 can reduce the condition that the upper portion of the lower flange 124 (i.e., the top portion 124c and the lower slope portion 126) contacts the fastener tape, and even if the upper portion of the lower flange 124 contacts the fastener tape, the lower slope portion 126 that extends across the lower flange parallel portion 124a and the lower flange tapered portion 124b and is inclined downward toward the outer side in the width direction of the lower flange 124 can disperse a frictional load generated when a longitudinal tensile force (in particular, an upward tensile force) is applied to the slider 100. Accordingly, the slider 100 can suppress damage to the fastener tape during sliding.

Further, in the present embodiment, as shown in fig. 1 and 2, the lower slope portion 126 is provided on the top 124c of the lower flange 124 at a position corresponding to the front end side S1 of the lower flange 124 and the outer side in the width direction of the lower flange 124. That is, as shown in fig. 1 to 3, the lower slope portion 126 is provided at a region corresponding to the boundary of the lower flange parallel portion 124a and the lower flange tapered portion 124b, but does not extend to the rear end side S2 of the lower flange tapered portion 124b. In this way, the arrangement range (size, ratio, inclination) of the lower slope portion 126 between the lower flange parallel portion 124a and the lower flange tapered portion 124b is adjusted by providing the lower slope portion 126 to expand the distance D1 between the upper surface of the lower flange 124 and the upper blade 110, so that the original purpose of the lower flange 124 is not impaired. However, the arrangement range (size, proportion, inclination) of the lower inclined surface portion 126 between the lower flange parallel portion 124a and the lower flange tapered portion 124b may be adjusted according to the requirements, and the utility model is not limited thereto.

Further, in the present embodiment, as shown in fig. 4 and 5, the lower flange 124 has a lower flange planar portion 124d corresponding to the top portion 124c, and a lower flange side surface portion 124e corresponding to the outer side in the width direction, and the lower slope surface portion 126 is formed so as to correspond to a chamfer between the lower flange planar portion 124d and the lower flange side surface portion 124 e. That is, the lower flange plane portion 124d and the lower flange side portion 124e can be regarded as the upper surface and the outer side surface of the lower flange 124, and are preferably perpendicular to each other (but not limited to) in the extending direction thereof. Further, the lower slope portion 126 may be regarded as a chamfer formed corresponding to the transition region T between the lower flange planar portion 124d and the lower flange side face portion 124 e. The chamfer is preferably an R-shaped chamfer (i.e., rounded) as shown in fig. 4 and 5, but in other embodiments not shown, a C-shaped chamfer (i.e., chamfered surface) may be provided, which may be adjusted as desired.

In this way, by providing the chamfer at the boundary between the lower flange flat surface portion 124D and the lower flange side surface portion 124e as the lower inclined surface portion 126, the space between the upper surface of the lower flange 124 and the upper blade 110 can be gradually widened from the position (for example, the space D2) of the lower flange flat surface portion 124D to the outside (for example, the space D1), and the arrangement of the lower inclined surface portion 126 can be made not to be limited by the kind of the slider 100 (that is, the slider 100 having the lower inclined surface portion 126 can be applied to various kinds of slider structures for slide fasteners), and the production of the slider 100 having the lower inclined surface portion 126 can be made easier. However, the present utility model is not limited to the specific embodiment of the lower slope portion 126, and the slider 100 can suppress damage to the fastener tape during sliding as long as the lower slope portion 126 is provided on the top 124c of the lower flange 124 as described above.

In addition, although the embodiment in which the lower slope portion 126 is provided on the pair of right and left lower flanges 124 of the lower blade 120 of the slider 100 has been described above, a similar structure to the lower slope portion 126 may be applied to the upper blade 110 of the slider 100.

Specifically, in the present embodiment, as shown in fig. 1 and 2, the upper blade 110 has a pair of left and right upper flanges 114 extending from a pair of left and right upper blade side edge portions 112 of the upper blade 110 toward the lower blade 120, and as shown in fig. 1 to 3, the pair of left and right upper flanges 114 of the upper blade 110 have upper flange parallel portions 114a parallel to each other, and an upper flange tapered portion 114b tapered toward the rear end side S2 of the upper flange 114 in a width dimension between the pair of left and right upper flanges 114. That is, the upper blade 110 having a plate-like structure has a pair of left and right upper blade side edges 112 (i.e., side edges of the plate-like structure), and the pair of left and right upper flanges 114 are formed as a strip-shaped rib that stands on the pair of left and right upper blade side edges 112 and protrudes toward the lower blade 120. The pair of left and right upper flanges 114 are provided corresponding to the positions of the pair of left and right upper flange side edges 112 of the upper flange 110, and thus have upper flange parallel portions 114a parallel to each other at the maximum width between the pair of left and right upper flanges 114, and upper flange tapered portions 114b tapered toward the rear end side S2 in the width dimension between the pair of left and right upper flanges 114. In this way, the upper flange parallel portion 114a of the upper flange 114 is formed at a position on the upper blade 110 that is located furthest outward in the width direction (i.e., that protrudes furthest outward in the width direction).

In the present embodiment, the pair of left and right upper flanges 114 are each provided with an upper slope portion 116, and the upper slope portion 116 is provided on a bottom portion 114c of the upper flange 114 facing the lower wing plate 120 (as shown in fig. 1, 2 and 4) and spans the upper flange parallel portion 114a and the upper flange tapered portion 114b (as shown in fig. 1 to 3) and is inclined upward toward the outer side in the width direction of the upper flange 114 (as shown in fig. 1, 2 and 4). That is, the upper slope portion 116 is configured as a slope inclined upward from the bottom portion 114c of the upper flange 114 toward the outer side in the width direction of the upper flange 114, and its inclined range spans the upper flange parallel portion 114a and the upper flange tapered portion 114b. In this way, the space between the lower surface of the upper flange 114 and the lower wing plate 120 is enlarged at the upper slope 116 (the space D1 between the upper slope 116 and the lower wing plate 120 is larger than the space D2 between the bottom 114c and the lower wing plate 120 as shown in fig. 5), and the space D1 is gradually enlarged toward the outer side in the width direction.

As is clear from the above, in the above arrangement, even if a longitudinal pulling force is applied to the slider 100 during sliding of the slider 100, the arrangement of the upper slope portion 116 can reduce the condition that the lower side portion of the upper flange 114 (i.e., the bottom portion 114c and the upper slope portion 116) contacts the fastener tape, and even if the lower side portion of the upper flange 114 contacts the fastener tape, the upper slope portion 116 that extends across the upper flange parallel portion 114a and the upper flange tapered portion 114b and is inclined upward toward the outer side in the width direction of the upper flange 114 can disperse a friction load generated when a longitudinal pulling force is applied to the slider 100. Further, since the lower slope surface portion 126 and the upper slope surface portion 116 are provided at the same time, the distance D1 between the upper surface of the lower slope surface portion 126 provided on the lower flange 124 of the lower blade 120 and the lower surface of the upper slope surface portion 116 provided on the upper flange 114 of the upper blade 110 can be effectively enlarged without providing the lower slope surface portion 126 and the upper slope surface portion 116 as slopes having large inclinations or large dimensions.

Further, in the present embodiment, as shown in fig. 1 and 2, the upper slope portion 116 is provided on the bottom 114c of the upper flange 114 at a position corresponding to the front end side S1 of the upper flange 114 and the outer side in the width direction of the upper flange 114. That is, as shown in fig. 1 to 3, the upper slope portion 116 is provided in a region corresponding to the boundary of the upper flange parallel portion 114a and the upper flange tapered portion 114b, but does not extend to the rear end side S2 of the upper flange tapered portion 114b. In this way, the upper slope portion 116 is provided to expand the distance D1 between the lower surface of the upper flange 114 and the lower wing plate 120, and the arrangement range (size, ratio, inclination) between the upper flange parallel portion 114a and the upper flange tapered portion 114b of the upper slope portion 116 is adjusted, so that the original purpose of the upper flange 114 is not impaired.

Further, in the present embodiment, as shown in fig. 4 and 5, the upper flange 114 has an upper flange planar portion 114d corresponding to the bottom portion 114c, and an upper flange side surface portion 114e corresponding to the outer side in the width direction, and the upper slope surface portion 116 is formed so as to correspond to a chamfer between the upper flange planar portion 114d and the upper flange side surface portion 114 e. That is, the upper flange plane portion 114d and the upper flange side surface portion 114e can be regarded as the lower surface and the outer side surface of the upper flange 114, and are preferably perpendicular to each other (but not limited to) in the extending direction thereof. Further, the upper slope surface portion 116 may be regarded as a chamfer (R-chamfer or C-chamfer) formed in a transition region corresponding to the upper flange planar portion 114d and the upper flange side surface portion 114 e.

In this way, by providing the chamfer at the boundary between the upper flange flat surface portion 114D and the upper flange side surface portion 114e as the upper inclined surface portion 116, the space between the lower surface of the upper flange 114 and the lower wing plate 120 can be gradually widened from the position (for example, the space D2) of the upper flange flat surface portion 114D to the outside (for example, the space D1), and the arrangement of the upper inclined surface portion 116 can be made not to be limited by the kind of the slider 100 (that is, the slider 100 provided with the upper inclined surface portion 116 can be applied to various kinds of slider structures for slide fasteners), and the production of the slider 100 provided with the upper inclined surface portion 116 can be made easier. However, the present utility model is not limited to the specific embodiment of the upper inclined surface 116, and may be adjusted according to the requirements. Further, since the longitudinal pulling force applied to the slider 100 is more frequently generated in the conventional upward pulling force, the present utility model is not limited to the arrangement of the upper inclined surface portion 116, and the slider 100 can suppress damage to the fastener tape during the sliding process, as long as the lower inclined surface portion 126 is provided at the top 124c of the lower flange 124 as described above.

In summary, in the slider according to the present utility model, the pair of right and left lower flanges of the lower blade are each provided with the lower slope portion, which is provided on the top of the lower flange and extends across the lower flange parallel portion having the widest slider width and the lower flange tapered portion having the tapered slider width, and is inclined downward toward the outer side in the width direction of the lower flange. In this way, the lower inclined surface portion can disperse a frictional load generated when a longitudinal pulling force (in particular, an upward pulling force) is applied to the slider. Preferably, the pair of left and right upper flanges of the upper blade are also each provided with an upper inclined surface portion which is provided at the bottom of the upper flange and spans the upper flange parallel portion where the slider width is widest and the upper flange tapered portion where the slider width is tapered, and is inclined upward toward the outer side in the width direction of the upper flange, so that the upper inclined surface portion can also disperse a frictional load generated when a longitudinal tensile force is applied to the slider. Accordingly, the slider of the present utility model can suppress damage to the fastener tape during sliding.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced with equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (6)

1. A slider, comprising:

an upper wing plate;

a lower wing plate arranged opposite to the upper wing plate; and

a guide post connecting the front ends of the upper wing plate and the lower wing plate, wherein

The lower wing plate is provided with a pair of left and right lower flanges extending from a pair of left and right lower wing plate side edge parts of the lower wing plate towards the upper wing plate,

the pair of right and left lower flanges of the lower wing plate has a lower flange parallel portion parallel to each other, and a lower flange tapered portion tapered toward the rear end side of the lower flange in a width dimension between the pair of right and left lower flanges, and

the pair of right and left lower flanges are each provided with a lower inclined surface portion which is provided on the top portion of the lower flange facing the upper wing plate, spans the lower flange parallel portion and the lower flange tapered portion, and is inclined downward toward the outer side in the width direction of the lower flange.

2. A slider as claimed in claim 1, wherein,

the lower slope portion is provided on the top portion of the lower flange at a portion corresponding to a front end side of the lower flange and an outer side of the lower flange in a width direction.

3. A slider as claimed in claim 2, wherein,

the lower flange has a lower flange plane portion corresponding to the top portion and a lower flange side surface portion corresponding to the outer side in the width direction,

the lower slope portion is formed to correspond to a chamfer between the lower flange planar portion and the lower flange side portion.

4. A slider as claimed in any one of claims 1 to 3, wherein,

the upper wing plate is provided with a pair of left and right upper flanges extending from a pair of left and right upper wing plate side edge parts of the upper wing plate to the lower wing plate,

the pair of upper flanges on the left and right of the upper wing plate has upper flange parallel portions parallel to each other, and an upper flange tapered portion tapered toward the rear end side of the upper flange in a width dimension between the pair of upper flanges, and

the pair of left and right upper flanges are each provided with an upper inclined surface portion which is provided at a bottom portion of the upper flange facing the lower wing plate, spans the upper flange parallel portion and the upper flange tapered portion, and is inclined upward toward an outer side in a width direction of the upper flange.

5. A slider as recited in claim 4, wherein,

the upper slope portion is provided on the bottom portion of the upper flange at a portion corresponding to a front end side of the upper flange and an outer side of the upper flange in a width direction.

6. A slider as in claim 5 wherein,

the upper flange has an upper flange plane portion corresponding to the bottom portion and an upper flange side surface portion corresponding to the outer side in the width direction,

the upper slope portion is formed to correspond to a chamfer between the upper flange planar portion and the upper flange side portion.

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