JP2020090745A - Heald frame for loom - Google Patents

Abstract

To provide a configuration of a heald frame for loom that is formed so that an upper stave and a lower stave are connected with a pair of heald frame lateral supports, which can achieve weight saving while preventing the breakage of the heald frame by not thinning a thickness of a connection parts of the staves with each heald frame lateral support.SOLUTION: At least either one of an upper stave and a lower stave has a pair of connection parts that are located at both ends in the longer direction and have insertion holes, upper and lower connection bars that are tabular connection bars and connect the pair of connection parts above or below the insertion hole, and a center panel part that is disposed between the pair of connection parts and formed of a plate and connects both connection bars by being fastened to a lateral face of each connection bar.SELECTED DRAWING: Figure 1

Description

According to the present invention, the upper Steve and the lower Steve are connected by a pair of side stays, and the connection between each Steve and the side stays is formed by inserting an insertion portion provided at each end of the side stays into each Steve. The present invention relates to a heald frame for a loom that is inserted into a hole.

As a heald frame for the above-mentioned loom, for example, there is a heald frame disclosed in Patent Document 1. More specifically, the heald frame includes an upper steave and a lower steave which form upper and lower beam members of the heald frame, and a pair of side stays connecting both steves at both ends thereof. Further, the connection between each Steve and the side stay is performed by inserting the insertion portion formed in the side stay into the insertion hole formed in the Steve. More specifically, each Steve is formed with insertion holes open at both ends thereof. On the other hand, each of the side stays is formed with an insertion portion that is sized to project in one direction at both ends and that can be inserted into the Steve insertion hole. Then, insert the insertion portion of the corresponding side stay into the insertion hole of each Steve to connect both Steve and both side stays, and by fixing the connected state by fixing means, the heald frame is It is configured.

Note that Steve is generally formed by extrusion or drawing. Therefore, Steve has the same sectional shape over the entire width, and is formed over the entire width in the same shape as the portion where the insertion hole is formed.

JP, 2005-083727, A

By the way, in the loom, there is a demand for a higher operating speed, and accordingly, a weight reduction of the heald frame. Then, when trying to reduce the weight of Steve to reduce the weight of the heald frame, Steve is formed in the same shape over the entire width as described above, so in order to reduce the weight, over the entire width. It will be handled by reducing the thickness of the wall.

However, if the wall thickness of Steve is reduced, the wall thickness in the vicinity of the insertion hole into which the insertion portion of the side stay is inserted is naturally reduced. When the wall thickness in the vicinity of the insertion hole becomes thin, the strength of the connecting portion between Steve and the side stays decreases, so that the connecting portion of the heald frame may be damaged depending on the operating condition of the loom. Therefore, in the past, weight reduction of the heald frame was limited as a result of considering such damage.

Therefore, an object of the present invention is to provide a structure of a heald frame that can realize weight reduction while avoiding the above-mentioned damage by not reducing the thickness of the connecting portion with each side stay in Steve. ..

According to the present invention, as described above, the upper side Steve and the lower side Steve are connected by a pair of side stays, and the connection between each Steve and the side stays is made by inserting the insertion portions provided at both ends of the side stays into each Steve. The present invention relates to a heald frame for a loom that is inserted into an insertion hole formed in the.

In order to achieve the above-mentioned object, in the heald frame for a loom as described above, at least one of the upper side steve and the lower side steve is a pair of connecting portions located at both ends in the longitudinal direction. And a pair of connecting portions having the above-described insertion holes, a plate-like connecting bar, an upper and lower connecting bar that connects the pair of connecting portions above and below the insertion hole, and a pair of connecting portions. And a center panel portion formed of a plate material and fixed to a side surface of each connecting bar to connect the connecting bars.

Further, in such a heald frame for a loom according to the present invention, the center panel portion may be configured to include two plate members, and the two plate members may be provided so as to sandwich each connecting bar. .. Further, the center panel portion may be configured to include a plate-shaped core material, and then the core material may be provided so as to be located between the two plate members.

According to the heald frame for the loom according to the present invention, at least one of the two steves has a pair of connecting portions having insertion holes for connecting with the side stays, and the pair of connecting portions is provided in the longitudinal direction of the Steve. The upper and lower connecting bars are connected to each other in an arrangement spaced apart in the (width direction of the heald frame). That is, according to the heald frame of the present invention, the pair of connecting portions, which are the portions having the insertion holes, are formed as separate members from the other portions of the Steve and are connected by the pair of connecting bars. They are integrated so that the Steve is provided with connecting portions (insertion holes) at both ends in the longitudinal direction. Moreover, the Steve is configured such that the upper and lower connecting bars are connected by the center panel section between both the connecting sections. However, since the center panel portion is a member separate from the connecting portion as described above, the center panel portion is made of a plate material without being limited by the shape of the connecting portion.

As described above, according to the heald frame of the present invention, in the Steve, since the connecting portion, which is the portion having the insertion hole, is formed as a member separate from other portions, the connecting portion is Even if it is configured so that such damage does not occur, it does not affect the configuration of other parts. Therefore, according to such a configuration, it is possible to reduce the weight of the Steve in other portions without reducing the thickness of both connecting portions that are the connecting portions with the side stays. In addition, since the Steve has a configuration in which a pair of connecting bars and a center panel portion made of a plate material are simply combined between both connecting portions, it is possible to further reduce the weight. As a result, the weight of the heald frame can be reduced while preventing the damage of the heald frame as described above.

It is a front view about one embodiment of the heald frame concerning the present invention. It is explanatory drawing about the connection structure of Steve and a side stay in the heald frame of FIG. It is a principal part enlarged view of FIG. 3A is a sectional view taken along the line AA of FIG. 3, and FIG. 3B is a sectional view taken along the line BB of FIG. It is sectional drawing (a), (b) of Steve in the heald frame of another embodiment which concerns on this invention. It is sectional drawing (a), (b) of Steve in the heald frame of another embodiment which concerns on this invention. It is sectional drawing (a), (b) of Steve in the heald frame of another embodiment which concerns on this invention.

Hereinafter, an embodiment (example) of a heald frame to which the present invention is applied will be described with reference to FIGS.

As shown in FIG. 1, the heald frame 1 includes a pair of steaves 10 and 10 that form upper and lower beam members in the heald frame 1, and a pair of side stays 20 and 20 that connect the steaves 10 and 10 at both ends thereof. Is equipped with. Each Steve 10 has insertion holes 10a and 10a opened at both ends in the longitudinal direction. On the other hand, each of the side stays 20 is formed in a plate shape as a whole, and has an insertion portion 22 projecting to one side in the width direction at both ends thereof. Then, the heald frame 1 inserts the insertion portion 22 of the corresponding side stay 20 into the insertion hole of each Steve 10, and fixes the inserted state by a fixing means (not shown), so that both of them are fixed. It is formed so as to be integrated and thereby form a frame.

In the illustrated example, the heald frame 1 is a heald frame that employs a so-called riderless type as a structure for supporting the heald 3. Therefore, the heald frame 1 has a carrier rod 18 attached to each Steve 10. Then, in the heald frame 1, the heald 3 is supported between the steves 10 and 10 in such a manner that the heald 3 is hung on each carrier rod 18.

In the heald frame 1 as described above, in the present invention, at least one of the steaves 10 and 10 is located at both ends in the longitudinal direction thereof, and has the pair of connecting portions 12 having the insertion holes 10a. , 12 and a pair of connecting bars 14, 14 for connecting the connecting portions 12, 12 at positions above and below the insertion hole 10a, and both connecting bars located between the pair of connecting portions 12, 12. A center panel portion 16 that is fixed to the side surfaces of the connecting bars 14 and 14 connects the connecting bars 14 and 14 together. In addition, this embodiment is an example in which both steves 10 and 10 in the heald frame 1 are so configured. The configuration of Steve 10 of this embodiment will be described in detail below. However, since the two steaves 10 and 10 have the same configuration except that they are symmetrically provided in the vertical direction in the heald frame 1, only the configuration of one steve 10 will be described below, and the other one will be described. Will not be described.

First, each connecting portion 12 is formed to have a plate shape in outline, and has a plate thickness dimension substantially the same as the plate thickness dimension of the side stays 20. Further, each connecting portion 12 has a through hole 12a formed so as to penetrate in the plate width direction. The through hole 12a corresponds to the insertion hole 10a described above. As described above, when forming the heald frame 1, the insertion portion 22 of the side stay 20 is inserted into the insertion hole 10a. Therefore, the insertion hole 10a and the insertion portion 22 of the side stay 20 are formed in such a relationship that the insertion portion 22 can be inserted into the insertion hole 10a. In addition, each connecting portion 12 has a pair of groove portions 12b and 12b formed so as to open in the upper surface and the lower surface thereof and extend in the plate width direction. In addition, each groove 12b is formed so as to open on both side surfaces. Incidentally, each connecting portion 12 is formed of a metal material (for example, an aluminum alloy).

Each connecting bar 14 is a long bar having a length corresponding to the width of the heald frame 1. However, each connecting bar 14 has a rectangular cross section in a direction orthogonal to its longitudinal direction, and the dimension of the cross section in the short side direction is the groove width direction of the groove 12b in the connecting portion 12 (the connecting portion 12). (In the plate thickness direction). Therefore, each connecting bar 14 can be fitted into the groove portion 12b of the connecting portion 12 in a direction in which the short side direction is aligned with the groove width direction of the groove portion 12b. Incidentally, in this embodiment, each connecting bar 14 is formed such that the dimension of the cross section in the long side direction is larger than the depth dimension of the groove portion 12b in the connecting portion 12. Further, each connecting bar 14 is formed of a fiber reinforced composite material (for example, a carbon fiber composite material).

Then, in the steve 10 of the present embodiment, each connecting bar 14 and each connecting portion 12 are assembled by fitting the connecting bar 14 to each connecting portion 12. More specifically, the connecting bars 14 are inserted into the groove portions 12b of the connecting portions 12 and 12 with their short sides aligned with the groove width direction of the groove portions 12b. The connecting bars 14 are fitted in the groove 12b. However, each connecting bar 14 is fitted into the connecting portion 12 (groove 12b) in a state in which the position of the end edge in the longitudinal direction is aligned with the position of the side edge of the connecting portion 12 in the plate width direction. Therefore, in a state where both the connecting portions 12 and 12 and the two connecting bars 14 and 14 are combined, the side surface of each connecting portion 12 on the outside of the Steve 10 and the both end surfaces of each connecting bar 14 are flush with each other. There is. The connecting portions 12 and 12 and the connecting bars 14 and 14 are fixed to each other by adhesion or the like. Then, in a state in which both of them are combined in such a manner, the two coupling parts 12, 12 are coupled by the pair of coupling bars 14, 14 positioned so as to sandwich the insertion hole 10a in the coupling part 12. ..

By thus combining the pair of connecting portions 12 and 12 and the pair of connecting bars 14 and 14, the portion forming the outer frame of Steve 10 is formed. In addition, the Steve 10 has the center panel portion 16 connecting the connecting bars 14 and 14 between the connecting portions 12 as described above. Further, in the Steve 10 of this embodiment, the center panel portion 16 is composed of a pair of connecting plates 16a, 16a and a core member 16b. Details of the center panel section 16 are as follows.

Each connecting plate 16a is made of a thin plate material and has a rectangular shape when viewed in the plate thickness direction. The connecting plate 16a has a dimension in the short side direction when viewed in the plate thickness direction that is substantially the same as a dimension between the upper and lower end surfaces of the connecting portion 12, and a long side direction when viewed in the plate thickness direction. The width (width) is slightly smaller than the distance between the connecting portions 12, 12 connected by the connecting bars 14, 14 as described above. Each connecting plate 16a is formed of a metal material (for example, an aluminum alloy).

Further, the connecting plate 16a connects the connecting bars 14 and 14 by being fixed to the side surfaces of the connecting bars 14 and 14. Specifically, the connecting plate 16a aligns the short side direction with the vertical direction of the connecting portion 12 (long side direction of the side surface) between the two connecting portions 12 and, and also with respect to the vertical direction thereof, It is arranged so that the position of the lower surface matches the position of the lower surface of the connecting portion 12. As a result, the connecting plate 16a is overlapped with each connecting bar 14 by the depth dimension of each groove 12b in the connecting portion 12 when viewed in the plate thickness direction. However, in such an arrangement between both the connecting portions 12, 12, the connecting plate 16a is arranged so that the center position in the long side direction coincides with the center position in the longitudinal direction of the connecting bar 14. As a result, since the width dimension of the connecting plate 16a is set as described above, a slight gap is formed between the connecting plate 16a and the connecting portions 12 and 12. In the positional relationship between the connecting portion 12 and the connecting bar 14, the connecting plate 16a is attached to the connecting bars 14 and 14 by adhesion or the like at the portion overlapping and facing each connecting bar 14 as described above. It is fixed to.

However, the center panel portion 16 of the steve 10 of this embodiment includes the pair of (two) connecting plates 16a, 16a as described above. Since the connecting plate 16a is fixed to the connecting bar 14 as described above, the pair of connecting plates 16a, 16a are provided so as to sandwich the connecting bar 14. Therefore, in the Steve 10, the pair of connecting bars 14, 14 are connected by the pair of connecting plates 16a, 16a fixed to each connecting bar 14 with the connecting bar 14 sandwiched therebetween.

Further, the center panel portion 16 includes the core material 16b as described above. The core material 16b is provided so as to fill the space between the pair of connecting plates 16a, 16a formed by sandwiching the pair of connecting bars 14, 14 as described above. .. Therefore, the core material 16b is formed in a plate shape, and is formed to have substantially the same size as the space surrounded by the pair of connecting bars 14, 14 and the pair of connecting plates 16a, 16a. Then, the core member 16b is interposed between the pair of connecting plates 16a, 16a in a position where the position in the plate width direction matches the connecting plate 16a, and is fixed to the connecting plate 16a by adhesion or the like. It is provided. The core material 16b is formed of, for example, a foamed resin material.

As described above, the Steve 10 is configured such that the pair of connecting portions 12, 12 are connected by the pair of connecting bars 14, 14 and the pair of connecting bars 14, 14 are connected by the center panel portion 16. Has been done. The heald frame 1 includes a pair of such steaves 10, and the pair of steaves 10 and 10 and the pair of side stays 20 and 20 are combined and integrated as described above. .. However, in such a combined state, both Steves 10 and 10 have a symmetrical arrangement. Then, in the heald frame 1, the pair of connecting bars 14, 14 in each Steve 10 connects the pair of connecting portions 12, 12 above and below the insertion holes 10a, 10a at both ends of the Steve 10. It is arranged.

In the present embodiment, the heald frame 1 has the riderless type heald support structure as described above, and has the carrier rod 18 for supporting the heald 3. Therefore, the heald frame 1 has a rod support portion 19 for supporting the carrier rod 18 between the upper and lower steves 10 and 10. Further, the rod support portions 19 are attached to a surface of each of the steaves 10 facing the other steave 10, and a pair of rod support portions 19 are provided in a vertically symmetrical direction.

More specifically, the rod support portions 19 are members having a length dimension corresponding to the width dimension of the heald frame 1, and each of the rod support portions 19 is opened at one end surface thereof and extends in the longitudinal direction. It has a groove portion 19a formed in. Here, in the Steve 10, each connecting bar 14 connecting the both connecting portions 12 and 12 protrudes from the groove portion 12b in a state of being fitted into the groove portion 12b due to the dimensional relationship with the groove portion 12b in the connecting portion 12 described above. ing. In Steve 10, the position of the lower surface of the connecting plate 16a and the position of the lower surface of the connecting portion 12 are aligned in the vertical direction. Therefore, in the heald frame 1, the connecting bar 14 on the side of the other steve 10 of both the steaves 10 and 10 projects toward the inner side of the heald frame 1 over the longitudinal direction with respect to the connecting portion 12 and the connecting plate 16a. .. Then, each rod supporting portion 19 is combined with the connecting bar 14 in such a manner that the protruding portion of the connecting bar 14 is fitted into the groove portion 19a of the rod supporting portion 19 and is fixed to the Steve 10 by adhesion or the like. It is attached to. As a result, both rod support portions 19 are arranged symmetrically with respect to the vertical direction between the upper and lower steves 10 and 10 of the heald frame 1. Then, in the heald frame 1, the carrier rods 18 are attached to the respective rod supporting portions 19.

As described above, in the heald frame 1 of the present embodiment, the portion of the steve 10 that is connected to the side stay 20 (the pair of connecting portions 12 and 12) and the other portions (the pair of connecting bars 14 and 14, the center panel). The part 16) is constituted by a separate member. According to this, compared with the case where the Steve 10 is formed in the same shape over the entire width as in the conventional case, it is possible to reduce the weight of the Steve 10 in the other portions (in particular, the center panel portion 16) described above. As a result, the weight of the heald frame can be reduced.

Further, in the heald frame 1 of this embodiment, a slight gap is formed between the left and right connecting portions 12, 12 and the center panel portion 16 connecting the upper and lower connecting bars 14, 14 between the both connecting portions 12, 12. Steve 10 is configured to exist. According to this configuration, the heald frame may bend due to the vertical movement of the heald frame due to, for example, weaving conditions, but even in that case, an unreasonable force is applied between the connecting portion 12 and the center panel portion 16. Since no damage is caused, damage to the heald frame can be prevented in advance.

Further, regarding the connection between the pair of connecting portions 12 and 12 and the pair of connecting bars 14 and 14 in the steve 10, in the present embodiment, the connecting bars 14 are respectively connected to the groove portions 12b formed in the connecting portions 12 and 12. The two are joined together, and then the two are fixed together by adhesion or the like. According to this, for example, as compared with the case where the connection bar 14 and the side surface of the connecting portion 12 are connected by adhering the end edge of each connecting bar 14 and the side surface of the connecting portion 12, contact between the connecting bar 14 and the connecting portion 12 is made. Since the area is larger, the connection can be performed more firmly.

In the above, one embodiment (henceforth "the above-mentioned example") of a heald frame by the present invention was explained. However, the present invention is not limited to what has been described in the above embodiments, and can be carried out in the following other embodiments (modifications).

(1) Concerning the center panel portion, in the above-described embodiment, the center panel portion 16 is composed of a pair of connecting plates 16a, 16a and a core material 16b, and a pair of connecting plates provided with the pair of connecting bars 14, 14 interposed therebetween. A core material 16b is interposed between 16a and 16a. However, in the heald frame 1 of the present invention, even when the center panel portion includes the pair of connecting plates 16a, 16a as in the above embodiment, the core material 16b is interposed between the connecting plates 16a, 16a. It may be configured without being dressed. That is, the center panel portion may be composed of only a pair (two) of connecting plates.

Further, the center panel portion is not limited to the one including a pair of connecting plates as described above, but may be configured by only a single (one) connecting plate. In that case, the center panel portion (connecting plate) is configured, for example, as shown in FIGS. Specifically, in the example shown in FIG. 5, the center panel portion 30 (connecting plate 30a) is fixed to one side surface of each connecting bar 14 so that the connecting bars 14 and 14 are connected to each other. Is.

Further, in the example shown in FIG. 6, the center panel portion 40 (connecting plate 40a) is fixed to the groove portions 44a and 46a formed in the upper connecting bar 44 and the lower connecting bar 46, respectively. , 46 are connected to each other. More specifically, in the example of FIG. 6, a groove portion 44a that opens to the lower surface of the upper connecting bar 44 is formed, and a groove portion 46a that opens to the upper surface of the lower connecting bar 46 is formed. .. Then, the center panel portion 40 is configured such that the connecting plate 40a is fitted into the groove portions 44a and 46a and fixed to the groove portions 44a and 46a so as to connect the connecting bars 44 and 46. ..

In the example of FIG. 6, the connecting plate 40a forming the center panel portion 40 abuts on the inner side surfaces of the groove portions 44a and 46a formed in the connecting bars 44 and 46, and is fixed at the abutting surface. As described above, the “side surface” of each connecting bar to which the center panel portion is fixed in the present invention is not limited to the outer side surface of the connecting bar (the side surface that is the outer side in the plate thickness direction in Steve 10), but also in the connecting bar. It also includes a side surface (the inner side surface in the example of FIG. 6) extending in parallel with the outer side surface.

Incidentally, in the example of FIG. 6, the connecting portion 42 is formed such that the groove portions 42a, 42a opening on the upper surface and the lower surface thereof are shaped according to the shapes of the connecting bars 44, 46. As a result, the connecting portions 42, 42 and the connecting bars 44, 46 are connected in a state in which the connecting bars 44, 46 are fitted in the respective groove portions 42a and then fixed by adhesion or the like. It

Further, the center panel portion is not limited to the one configured to connect both connecting bars with one connecting plate over the range in which the center panel portion is provided as in the above embodiment in the longitudinal direction of Steve 10. The connecting bars may be connected by a plurality of connecting plates each having the width smaller than the above range. That is, the center panel portion may be configured such that a plurality of connecting plates are aligned in the longitudinal direction of Steve 10. In addition, in the case of that structure, it is preferable that the connecting plates are arranged so that the adjacent connecting plates are separated from each other. Further, in the case where the connecting plates are provided with the connecting bar interposed therebetween as described above, when a plurality of connecting plates are provided in the longitudinal direction of Steve 10, the center panel portion is viewed in the plate thickness direction of Steve 10. Thus, the connecting plates may be arranged so that the positions of the connecting plates are the same on both sides of the connecting bar, or some or all of the connecting plates may be arranged so as not to overlap on both sides.

(2) Concerning the connecting bar for connecting the connecting portions in the Steve 10, in the above-described embodiment, the Steve 10 is configured such that both connecting portions 12, 12 are connected by one connecting bar 14 on each of the upper side and the lower side. Has been done. However, in the heald frame of the present invention, as shown in FIG. 7A, for example, two connecting bars 52, 52 are connected by two connecting bars 54, 54 on the upper side and the lower side of each connecting section 52, respectively. It may be something that is done. In that case, after forming two groove parts 52a and 52a which open in the upper surface and the lower surface of both connecting parts 52 and 52, respectively, the connecting bar 54 is fitted to each groove part 52a to form the connecting part 52. The connecting bar 54 is combined.

In addition, when both connecting portions 52 are connected by the two connecting bars 54, 54 on the upper side and the lower side of each connecting portion 52 as described above, the center panel portion 50 is provided on the outer side of each connecting bar 52. The connecting plate 50a may be fixed to the side surface, or as shown in FIG. 7(b), the connecting plate 50a is arranged so as to be sandwiched between the two connecting bars 54, 54. The connecting plate 50a may be fixed to the side surface of each connecting bar 54, which is the inside of the steve 10. Further, the center panel portion 50 may be configured to connect both connecting bars 54, 54 with three connecting plates 50a in a combination of both configurations.

(3) In the heald frame 1 of the above-described embodiment, both the upper and lower steaves 10 and 10 are configured to include the pair of connecting portions 12 and 12, the pair of connecting bars 14 and 14, and the center panel portion 16. .. However, in the heald frame 1 of the present invention, only one of the two steaves 10 and 10 may be so configured.

(4) Regarding the heald support structure, the heald frame 1 of the above-mentioned embodiment adopts a riderless type as the heald support structure. However, the present invention is also applicable to a heald frame in which a heald support structure of a type in which a heald having support holes formed at both ends such as a flat heald is supported by a support rod inserted into the support holes is adopted. Is.

Further, the present invention is not limited to any of the above-described embodiments, and can be variously modified without departing from the spirit of the present invention.

1 Held Frame 3 Held 10 Steve 10a Insertion Hole 12 Connecting Portion 12a Through Hole 12b Groove 14 Connecting Bar 16 Center Panel 16a Connecting Plate 16b Core Material 18 Carrier Rod 19 Rod Support 19a Groove 20 Side Stay 22 Insert 30 Center Panel 30a connecting plate 40 center panel part 40a connecting plate 42 connecting part 42a groove part 44 connecting bar 44a groove part 46 connecting bar 46a groove part 50 center panel part 50a connecting plate 52 connecting part 54 connecting bar

Claims (3)

The upper Steve and the lower Steve are connected by a pair of side stays, and the connection between each Steve and the side stays is formed by inserting an insertion portion provided at each end of the side stays into each of the Steves. In the heald frame for the loom that is being inserted into the hole,
At least one of the upper Steve and the lower Steve,
A pair of connecting portions having a pair of connecting portions located at both ends in the longitudinal direction and having the insertion hole;
A plate-shaped connecting bar, an upper and lower connecting bar that connects the pair of connecting portions on the upper side and the lower side of the insertion hole;
A loom comprising a center panel portion arranged between a pair of the connecting portions, the center panel portion being made of a plate material and fixed to a side surface of each of the connecting bars to connect the connecting bars. Heald frame for. The center panel portion includes two plate members,
The heald frame for a loom according to claim 1, wherein the two plate members are provided so as to sandwich each of the connecting bars. The center panel section includes a plate-shaped core material,
The heald frame for the loom according to claim 2, wherein the core material is provided between the two plate members.

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