JP2016160600A - Wind regulator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a wall thickness of an equalizer arm of an X-arm-type wind regulator while maintaining strength, and prevent flapping in a portion near a connection between a first arm and a second arm that constitute the equalizer arm, even when strong force is exerted on the wind regulator.SOLUTION: An X-arm-type wind regulator includes a lift arm 10 and an equalizer arm 20. The equalizer arm 20 includes a first arm 21 and a second arm 22, and a base edge part 212 of the first arm 21 and a base edge part 222 of the second arm 22 are connected at a through-hole 105 formed in an intermediate part of the lift arm 10. The first arm 21 includes a slide contacting part 216 that slides and contacts the lift arm 10 outside of the through-hole 105, and two linear beads 215, 215 on both sides of a connection 205 between the base edge parts 212, 222. The linear beads are formed along a lengthwise direction of the first arm 21, between the connection 205 and the slide contacting part 216.SELECTED DRAWING: Figure 1

Description

  In the present invention, the lift arm and the equalizer arm are pivotally attached in an X shape by joining the base ends of the first arm and the second arm at the through-hole in the center of the lift arm to form an equalizer arm. The present invention relates to a so-called X-arm type window regulator.

In the X-arm type window regulator, the base end portion (one end portion) of the lift arm is supported rotatably (swingable) by a drive source (drive member) fixed to the door panel, and the tip end portion (the other end portion) is the window. Connected to lift arm bracket for glass support. To be precise, it is guided by the guide of the lift arm bracket. On the other hand, the tip (one end) of one arm of the first arm or the second arm constituting the equalizer arm is connected to an equalizer arm bracket fixed to the door panel, and the tip (other end) of the other arm is the lift. Connected to the arm bracket. Precisely, the distal end portion (one end portion / other end portion) of one / the other arm is guided by the guide of the equalizer arm bracket / the guide of the lift arm bracket.
In such an X-arm type window regulator, the window glass supported by the lift arm bracket is opened and closed by a lift arm that is rotated (swinged) by receiving a driving force from a driving member.

  Japanese Patent Laying-Open No. 2006-31835 (Patent Document 1) discloses a technique for reducing the amount of plastic deformation of an equalizer arm in an X-arm type window regulator.

JP 2006-31835 A

  In the X-arm type window regulator, if the window glass is driven in the upward direction while reaching the top dead center, or if the window glass is fixed at the top dead center etc. and driven in the downward direction, A strong torsional force acts on the lift arm. The torsional force is transmitted to the vicinity of the joint of the equalizer arm (joint of the first arm and the second arm) via the part where the lift arm and the equalizer arm are in sliding contact (near the pivoting part). A strong twisting force acts on the vicinity of the joint portion of the equalizer arm. In addition, a force for shifting in the vehicle width direction acts on the vicinity of the joint portion of the equalizer arm.

In recent years, the equalizer arm has been required to be thinner due to the demand for smaller and lighter window regulators. In other words, it is required to reduce the thickness without sacrificing strength. For this reason, although a bead is formed at the edge along the longitudinal direction of the equalizer arm to increase the section modulus, it has not yet been achieved with sufficient thinning and sufficient strength.
The reason for this is that at the part where the torsional force acts strongly, that is, the part where the lift arm and the equalizer arm are in sliding contact (the pivoting part = around the joint), the edge bead is not linear but is along the sliding part. Therefore, it is considered that a position where the direction of the torsional force and the direction of the bead are the same direction occurs, and as a result, the torsional force cannot be sufficiently resisted.

  In addition, when the bead is formed along the edge, the lift arm and the equalizer arm are separated at the portion where the lift arm and the equalizer arm are in sliding contact with each other, that is, around the joint portion. This is not possible, and the maximum diameter of the sliding contact portion is reduced. There is also a problem that fluttering occurs as a result of the above-described “force for shifting in the vehicle width direction” acting on this portion.

  The present invention has been made in view of such circumstances, and in an X-arm type window regulator, when the equalizer arm is thinned while maintaining the strength of the equalizer arm, and when a strong force is applied to the window regulator (for example, The purpose is to prevent fluttering in the vicinity of the joint between the first arm and the second arm constituting the equalizer arm even when a force in the upward direction is applied after the wind glass reaches top dead center. And

The present invention is configured as the following [1] to [4]. In this section and the next section (means for solving the problems, effects of the invention), the reference numerals are given for ease of understanding and are not intended to limit the present invention to the configuration of the reference numerals.
[1] Configuration 1
One end 101 is rotatably supported by the drive unit 50, and the other end 102 is connected to a lift arm bracket 30 that supports the window glass,
The lift arm 10 is rotatably supported by a through hole 105 formed in an intermediate portion thereof to form an X shape with the lift arm 10, and one end 201 is connected to an equalizer arm bracket 40 fixed to a door panel, An equalizer arm 20 having the other end 202 connected to the lift arm bracket 30;
A window regulator that opens and closes the window glass by rotation of the lift arm 10,
The equalizer arm 20 includes a first arm 21 and a second arm 22,
The first arm 21 and the second arm 22 have a joint portion 205 where the base end portion 212 of the first arm 21 and the base end portion 222 of the second arm 22 are joined through the through-hole 105. ,
The first arm 21 has a sliding contact portion 216 that is in sliding contact with the lift arm 10 outside the through-hole 105, and two linear protrusions 215 and 215 that sandwich the joint portion 205. The two protrusions 215 and 215 are formed so as to be positioned along the longitudinal direction of the first arm 21 and between the joint 205 and the sliding contact 216, respectively.
A window regulator characterized by that.

In the above, “the base end portion 212 of the first arm 21 and the base end portion 222 of the second arm 22 are joined by the through-hole 105” means “the through-hole 105 having an inner peripheral surface of a cylindrical shape”. Inside, the base end 212 of the first arm 21 and the base end 222 of the second arm 22 that are formed so that the outer peripheral surface forms a cylindrical shape enter from the openings on the opposite surfaces, respectively, and both base ends 212, 222 may be joined inside the through hole 105 ", but either one of the base ends (the base end portion 212 or the base end portion 222) enters the inside of the through hole 105 and penetrates further. It may project from the opening on the opposite surface side of the hole 105 and be joined to the other proximal end portion (the proximal end portion 222 or the proximal end portion 212) on the opposite surface side. 2B and 2C show the latter case. That is, the base end portion 212 of the first arm 21 enters the through hole 105 and protrudes to the opposite side, and is joined to the base end portion 222 of the second arm 22 on the opposite side. Here, a known technique such as caulking or welding can be used for joining.
Further, in the above description, the “joining portion” means “a portion joined at the base end portion 212 of the first arm 21 and the base end portion 222 of the second arm 22”. For example, in FIGS. 2B and 2C, two joint portions 205, 205 are shown. It can be seen that these are the four joint portions 205 to 205 by referring to FIG.
Further, in the above, the “projection portion” means that a processed reinforcement portion (string / band / stripe step is added by “processing method to reinforce by punching a sheet metal into a string / band”). And a portion that has been struck in a strip shape adjacent to the step). For example, a portion that is press-formed so as to rise in a streak / strip shape inside the flat plate surface (so-called flange / bead, a portion that forms a groove in the flat plate surface) or a streak / strip shape along the edge of the flat plate The formed step portion (so-called flange / bead, a portion provided in a streak / strip shape higher (or lower) than the flat surface at the edge of the flat plate). If the sheet metal is flat, the strength is small and it is easy to bend, but by hitting a bead or a flange, the section modulus can be increased and the strength can be increased.

[2] Configuration 2
In configuration 1,
The two linear protrusions 215 and 215 extend to a position beyond the joint 205, respectively.
A window regulator characterized by that.
[3] Configuration 3
In configuration 1,
There are a plurality of the joints 205,
The two straight ridges 215 and 215 extend to a position beyond the joint portion 205 located on the most proximal side in the longitudinal direction of the first arm, respectively.
A window regulator characterized by that.
[4] Configuration 4
In any of Configuration 1 to Configuration 3,
The two straight ridges 215 and 215 extend from the end 211 (201) opposite to the base end 212, respectively.
A window regulator characterized by that.

Configuration 1 is formed at one end portion 101 rotatably supported by a drive unit 50 and the other end portion 102 connected to a lift arm bracket 30 supporting a window glass, and an intermediate portion of the lift arm 10. The lift arm 10 is rotatably supported by the formed through-hole 105 to form an X shape, one end 201 is connected to the equalizer arm bracket 40 fixed to the door panel, and the other end 202 is the lift arm bracket. 30 is a window regulator that opens and closes the window glass by rotation of the lift arm 10, and the equalizer arm 20 includes a first arm 21 and a second arm 22. The first arm 21 and the second arm 22 are connected to the first arm through the through-hole 105. 21 has a joint portion 205 to which the base end portion 212 of the second arm 22 and the base end portion 222 of the second arm 22 are joined. The first arm 21 is slidably in contact with the lift arm 10 outside the through hole 105. In addition to having a contact portion 216, two straight protrusion portions 215 and 215 sandwiching the joint portion 205, and the two protrusion portions 215 and 215 are respectively in the longitudinal direction of the first arm 21. The strength of the first arm 21 of the equalizer arm 20 (the torsional force applied to the joint point) is determined so as to be positioned between the joint portion 205 and the sliding contact portion 216. The strength can be reduced. Further, even when a strong force is applied to the window regulator, a sliding surface can be secured at a position away from the rotation center of the lift arm and the equalizer arm, so that the first arm 21 and the second arm 22 constituting the equalizer arm 20 are secured. It is possible to prevent the occurrence of fluttering at the joint 205.
In the configuration 2, in the configuration 1, the two linear protrusions 215 and 215 are window regulators that extend to positions beyond the joint portion 205, respectively, so that a strong torsional force is generated. The strength of the joining portion to be added can be reliably increased.
Configuration 3 is configuration 1 in which there are a plurality of the joint portions 205, and the two linear protrusions 215 and 215 are respectively located on the most proximal side in the longitudinal direction of the first arm. Since the window regulator extends to a position beyond the joint portion 205 located at the position, the strength of the joint portion to which a strong torsional force is applied can be reliably increased.
In Configuration 4, in any of Configurations 1 to 3, the two linear protrusions 215 and 215 extend from an end 211 (201) on the opposite side to the base end 212, respectively. Since the window regulator is provided, the strength can be reliably increased over the entire length of the first arm 21.

The front view which sees through and shows the window regulator of embodiment 1 shows the window regulator of FIG. 1, (a) is an arrow A view in FIG. 1 (however, lift arm 10 and equalizer arm 20 are viewed from arrows A 1 and A 2, respectively, (b) is B near the joint. -B line end view, (c) is a CC line end view near the joint. The 1st arm 21 of the equalizer arm 20 is shown, (a) is a front view, (b) is a top view, (c) is a CC end view in (a), (d) is a D- in (a). D end view. The 2nd arm 22 of the equalizer arm 20 is shown, (a) is a front view, (b) is a top view, (c) is a CC end view in (a), (d) is a D- in (a). D end view. 1 and 4 show a first modification of the arm shown as the second arm 22 (an arm that constitutes an equalizer arm together with the first arm 21), (a) is a front view, (b) is a top view, (C) is a CC end view in (a), (d) is a DD end view in (a). 1 and 4 show a second modification of the arm shown as the second arm 22 (an arm that constitutes an equalizer arm together with the first arm 21), (a) is a front view, (b) is a top view, (C) is a CC end view in (a), (d) is a DD end view in (a).

  Embodiments of the present invention will be described with reference to the drawings. The so-called X-arm type window regulator shown in FIG. 1 includes a lift arm 10, an equalizer arm 20, a lift arm bracket 30, an equalizer arm bracket 40, and a drive mechanism (drive unit) 50.

  The lift arm 10 has one end (base end) 101 supported by a drive mechanism (drive unit) 50 so as to be rotatable (swingable), and the other end (tip end) 102 attached to a window glass (not shown). It is connected to and supported by the lift arm bracket 30 to be supported. To be exact, a shoe 102a (FIG. 2A) provided at the other end (tip) 102 is accommodated in the guide of the lift arm bracket 30 and guided by the guide.

  In the illustrated example, the drive mechanism 50 uses a motor as a drive source, but a manual method may be used instead of the motor. The drive mechanism 50 drives the lift arm 10 to rotate (swing), thereby moving the lift arm bracket 30 up and down to open and close the window glass (not shown) supported by the lift arm bracket 30. Since it is publicly known, further explanation is omitted.

  The first arm 21 and the second arm 22 constituting the equalizer arm 20 are joined to each other through the through hole 105 (see FIGS. 2B and 2C) in the longitudinal center portion of the lift arm 10. That is, the base end portion 212 of the first arm 21 and the base end portion 222 of the second arm 22 are joined with their respective surfaces 212a and 222a in close contact with each other, whereby the lift arm 10 and the equalizer arm 20 are connected to each other. It is pivotally attached in a letter shape. That is, it is provided rotatably. The joining is performed by caulking in the illustrated example, but may be joined by other known techniques such as welding. Hereinafter, each portion where the base end portion 212 of the first arm 21 and the base end portion 222 of the second arm 22 are joined is referred to as a joint portion 205. As shown in FIGS. 2B and 2C and FIG. 4, the present embodiment includes a total of four joint portions 205 to 205 at the base end portion 212 to the base end portion 222.

  Further, in the example shown in FIGS. 2B and 2C, the base end 212 of the first arm 21 is inserted into the through hole 105 and protruded from the opening on the opposite surface side. This is performed by joining to the base end portion 222 of the second arm 22. That is, the base end portion 212 of the first arm 21 (more precisely, a cylindrical shape that can be loosely fitted into the through hole 105 in the base end portion, that is, a cylindrical shape having an outer diameter that is slightly smaller than the inner diameter of the through hole 105) So as to protrude from the opening on the surface opposite to the inserted side (opening of the through-hole 105), and slightly protrude from the opening on the opposite surface. This is done by joining the corresponding surface 222a of the base end portion 222 of the second arm 22. However, instead of this, the base end portion 212 of the first arm 21 and the base end portion 222 of the second arm 22 are respectively inserted into the through-hole 105 from the opening on the opposite surface side, and the inside of the through-hole 105 is inserted. It may be performed by joining with. In that case, the portion of the base end portion 222 of the second arm to be inserted has a cylindrical shape with an outer diameter that is slightly smaller than the inner diameter of the through hole 105, as in the case of the base end portion of the first arm 212. The part protrudingly formed by a press or the like will be used.

The equalizer arm 20 has a distal end portion (the other end portion of claims) 202 connected to the lift arm bracket 30. To be exact, the shoe 202a (FIG. 2A) of the tip end portion (the other end portion of the claims) 202 of the equalizer arm 20 is accommodated in the guide (groove) of the lift arm bracket 30 and guided by the guide. Is done.
Further, the equalizer arm 20 is connected to the equalizer arm bracket 40 at an end portion (one end portion of claims) 201 on the side opposite to the tip end portion 202. More precisely, the shoe 201a (FIG. 2 (a)) of the opposite end (one end of the claims) 201 of the equalizer arm 20 is accommodated in the guide (groove) of the equalizer arm bracket 40, Guided by a guide.

  As described above, the equalizer arm 20 is connected to one or two of the corresponding surfaces 212 a to 222 a of the base ends 212 to 222 of the first arm 21 and the second arm 22 through the through hole 105 in the center of the lift arm 10. It is comprised by joining the above desired site | parts. Further, as described above, the end portion 211 (= the front end portion of the equalizer arm 20 (the other end portion of the claims) 201) opposite to the base end portion 212 of the first arm 21 is coupled to the equalizer arm bracket 30. ing. Here, although the equalizer arm bracket 30 is fixed to a door panel (not shown), the lift arm bracket 30 to which the second arm 22 is connected moves up and down together with the window glass (not shown). That is, it is not fixed. For this reason, the torsional force transmitted from the lift arm 10 acts on the first arm 21 more strongly than the second arm 22. Therefore, stronger strength is required for the first arm 21 than for the second arm 22.

  For this reason, in the present embodiment, two beads (or flanges; ridges of claims; hereinafter the same) 215 and 215 are formed on the first arm 21 to increase the section modulus, The strength against the torsional force of the joint is increased. That is, two linear beads 215 (215a) and 215 (215a) are formed and reinforced along the longitudinal edge of the first arm 21 and with the joint portion 205 interposed therebetween. That is, the beads 215 and 215 are provided at the respective edge positions in the longitudinal direction from the end 211 on the opposite side of the base end 212 of the first arm 21 to the position beyond the joints 205 and 205. Here, in the illustrated example, the position beyond the joints 205 and 205 is a position beyond the joint 205 at the position farthest from the base end 212 of the first arm 21 (side closer to the end). For this reason, the strength obtained is sufficient. Note that it may be a position beyond the joint portion 205 near the end 211 on the slightly opposite side. In short, it is only necessary that at least one joint 205 can be sandwiched between two beads 215 (215a) and 215 (215a) provided along both edges.

  In the present embodiment, the bead 215 (215a) is located near the position where the two beads 215 and 215 sandwich the joint 205, that is, in the vicinity of the base end 212 (see FIG. 3A) of the first arm 21. , 215 (215 a) are provided between the joint portion 205 and the sliding contact portion 216. That is, the sliding contact portion 216 is positioned along the edge, and the bead 215 (215a) is provided inside thereof. Since it is provided in this way, the diameter of the portion contributing to the sliding contact between the lift arm 10 and the first arm 21 can be increased, and even when an excessive force is applied to the window regulator (lift arm 10). The fluttering of the joint portion 205 can be suppressed. Here, the sliding contact portion 216 refers to a portion where the first arm 21 is in sliding contact with the lift arm 10 outside the through hole 105. In addition, since the bead 215 (215a) is provided on the inner side of the sliding contact portion 216, the bead 215 can be formed in a straight shape in the vicinity of the joint portion 205 instead of a curved shape that circulates around the joint portion 205. For this reason, the direction of the torsional force and the direction of the bead 215 can be prevented from becoming the same direction, and the strength can be prevented from decreasing. A bead is a part processed by a known processing method of reinforcing a sheet metal by striking a string / strip / strip (a part having a string / strip / strip step and adjacent to the step. For example, a portion formed by a known molding method such as press molding into a striped or strip-shaped groove shape on a flat plate surface, or a strip / strip-shaped press molding along the edge A band-shaped step portion formed by, for example. These may be referred to as reinforcing flanges.

Further, in this embodiment, the two beads 215 (215a) and 215 (215a) are terminated in a tapered shape near the base end portion 212 of the first arm 21 (FIG. 3B). reference). Thereby, since a rapid change in the section modulus can be suppressed, even better strength can be obtained against torsional force. Further, the widths of the two beads 215 (215a) and 215 (215a) are formed so as to be gradually narrowed in the direction of terminating in this way. For this reason, the area of the sliding contact portion 216 can be expanded toward the end side of the bead, and the effect of suppressing the fluttering of the joint portion 205 when an excessive force is applied to the window regulator (lift arm 10). Can be further increased. In addition, this effect is synergistic because the area of the slidable contact surface 216 is further increased when the width of the first arm 21 is gradually expanded toward the base end portion 212 side. Has been enhanced.
In addition, since the two beads 215 (215a) and 215 (215a) are terminated as described above and do not reach the previous edge (the previous edge on the bead extension), in the vicinity of the edge, The area of the sliding contact portion 216 can be made sufficiently large, and the above-described operational effects are further enhanced.

  In addition, as described above, the bead 215 (215a) is formed inside the edge (= formed inside the sliding contact portion 216) in the vicinity of the joint portion 205, but from the joint portion 205 to the end portion 211. In the part distant from the direction, the bead 215 is widened so as to reach the edge at least in the part away from the sliding contact portion 216 (see 215c in FIG. 3A). This portion is a portion that is separated from the sliding contact portion 216 as described above, and is a portion that is sufficiently separated from the end portion 211. In other words, in a portion that overlaps the sliding contact portion 216, it is formed so as to be inside the sliding contact portion 216, and fluttering is prevented, and when the sliding contact portion 216 is removed, the aperture is formed from the end 211. Up to the portion 215c, as shown by 215b in FIG. 3A, the beads 215 are formed with a sufficient width along the edge, thereby obtaining a sufficient strength. Further, as described above, at the drawing portion where the width is expanded in the edge direction to reach the edge, an R (arc) is attached as shown by 215c in FIG. Constraining the concentration. In other words, the part (squeeze forming part) 215c formed so as to reach the edge is a part away from the sliding contact portion 216, and the bead 215 (215b) can be formed widely by setting the edge position. A part where the length is sufficiently increased and the strength is increased (a part where the distance from the end portion 211 is sufficiently taken), and a part where the twist of deformation is reduced by avoiding a part where the twisting force is most easily concentrated. You can choose as

  In addition, a portion near the base end portion 212 of the bead 215 (a portion between the joint portion 205 and the sliding contact portion 216) 215a and a portion 215b along the edge (a portion 215c formed so as to reach the edge) The part after reaching; the part formed like a flange) is formed so that their upper surface parts (parts appearing in a band shape in FIG. 3A) form a continuous surface (same surface). As a result, a sudden change in the section modulus is suppressed.

  Further, a sliding contact surface 216 formed around the joint portion 205 and in which the first arm 21 is in sliding contact with the lift arm 10 is a flat portion (on the end portion 211 side, as shown in FIG. 3B). It is formed as a stepped portion that goes down (up in FIG. 3B) to 210 (a flat portion from which irregularities such as beads 215 are formed). On the other hand, the bead 215 (215a) is not formed as a step portion, but is formed as a taper in the longitudinal direction as described above, and a sudden change in the section modulus is suppressed.

  Further, the width of the bead 215 (215b) is formed so as to gradually narrow toward the end portion 211, and further, the angle is changed ahead of the flat portion 210 in the vicinity of the end portion 211. In other words, it has a tapered shape.

  In the above, two linear beads 215 and 215 are provided on the edge of the first arm 21, and the joint 205 is sandwiched between the two beads in the vicinity of the joint 205, and each bead is in sliding contact with the joint 205. The example in which the first arm 21 has sufficient strength has been described so as to be positioned between the portions 216, that is, from the edge to the inner side, but the same applies to the second arm 22. A bead may be provided. That is, in the above description, the first arm 21 is described as corresponding to the first arm in the claims. However, the first arm in the claims is not limited to the first arm 21 in the embodiment. Of course, the second arm 22 of the above embodiment may be the first arm of the claims.

In the above embodiment, the second arm 22 shown in FIG. 4 and the first arm 21 described above constitute the equalizer arm 20 as shown in FIG. 1, and the equalizer arm 20 is used to constitute a window regulator. doing.
Instead of the second arm (second arm shown in FIG. 4) 22, the second arm shown in FIG. 5 (first modification) or the second arm shown in FIG. 6 (second modification) is used. It is also possible to use it.
In these second arms, as shown on the CC end face and the DD end face, on the edge side of the flange (part corresponding to the bead 215 of the first arm 21 described above) provided along both edges, Each step is provided to increase the strength against twisting.

DESCRIPTION OF SYMBOLS 10 Lift arm 101 One end part 102 Other end part 102a Shoe 105 Through-hole 20 Equalizer arm 201 One end part 201a Shoe 202 Other end part 202a Shoe 205 Joining part 21 1st arm 210 Flat part 212 1st arm base end part 215 Bead 215a Bead part 215b Bead part 215c Bead part 216 Sliding contact part 22 Second arm 221 End part 222 opposite to the base end part 222 of the second arm Base part 30 of the second arm Lift arm bracket 40 Equalizer arm bracket 50 Drive unit

Claims (4)

A lift arm, one end of which is rotatably supported by the drive unit and the other end connected to a lift arm bracket that supports the window glass;
The lift arm is rotatably supported by a through-hole formed in an intermediate portion of the lift arm, forms an X shape with the lift arm, one end is connected to an equalizer arm bracket fixed to the door panel, and the other end is the An equalizer arm connected to the lift arm bracket;
A window regulator that opens and closes the window glass by rotation of the lift arm,
The equalizer arm is composed of a first arm and a second arm,
The first arm and the second arm have a joint where the base end of the first arm and the base end of the second arm are joined in the through hole,
The first arm has a slidable contact portion that slidably contacts the lift arm outside the through-hole, and has two linear ridge portions sandwiching the joint portion, and the two ridge portions Are formed so as to be positioned along the longitudinal direction of the first arm and between the joint portion and the sliding contact portion, respectively.
A window regulator characterized by that. In claim 1,
Each of the two linear protrusions extends to a position beyond the joint,
A window regulator characterized by that. In claim 1,
There are a plurality of the joints,
Each of the two linear protrusions extends to a position beyond the joint located on the most proximal side in the longitudinal direction of the first arm.
A window regulator characterized by that. In any one of Claims 1-3,
Each of the two linear protrusions extends from the end opposite to the base end,
A window regulator characterized by that.

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