JP2013040671A - Plate material coupling structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the rattling at a coupling place and the inclination of a second plate material when coupling a first and a second plate materials by inserting the insertion piece of the second plate material into the insertion hole of the first plate material.SOLUTION: The insertion piece 52 of the second plate material 50 is inserted into the insertion hole 12 of the first plate material 10. A projection 20 provided on the hole wall face 13 of the insertion hole 12 fits to the opening 56 of the insertion piece 52. The end edge 51 of the second plate material 50 is butted to the plate face of the first plate material 10. At least one of the first plate material 10 and second plate material 50 may be a wiring substrate, or at least one of them may be a sheet metal.

Description

  The present invention relates to a flat plate material bonding structure, and more particularly to a flat plate material bonding structure having a shape in which a flat plate material on the other side rises from a flat plate material on one side of two flat plate materials selected from a wiring board and a sheet metal.

  In a conventional example of this type of flat plate joining structure, a straight end of the second flat plate on the other side is inserted into a slit-like insertion hole formed on the first flat plate on one side of the two flat plates. There was one that inserted an insertion piece protruding from the edge. Further, in this aspect of the conventional example, both of the first and second flat plate members are wiring boards, one is a wiring board, and the other is a sheet metal forming a specific metal fitting. Furthermore, there is a sheet metal forming one cabinet and the other being a sheet metal as a specific metal fitting or electrical component. The specific application location of the conventional example includes a connection location between a wiring board and a standing board of an electrical device, a connection location between a wiring board and a sheet metal leg piece of a connector such as a jack, a wiring board and a metal plate There were joints with the leg pieces of the electromagnetic shielding plate.

  On the other hand, various connection structures for wiring boards that are intended to stand up perpendicularly to the wiring board on one side of the two wiring boards have been proposed (for example, patents). Reference 1, Patent Document 2, and Patent Document 3).

  FIG. 13 is a cross-sectional plan view of a coupling structure proposed by Patent Document 1 as a first prior example. In this coupling structure, the long hole 120 of the main printed wiring board 100 is made slightly larger than the cross section of the fitting end portion 200 of the sub printed wiring board, and the protrusion 130 formed at an appropriate position on the inner periphery of the long hole 120 is formed. It is press-contacted to the fitting end portion 200 of the sub printed wiring board. And, in this coupling structure, when the fitting end 200 is inserted into the elongated hole 120 and fitted, the fitting end 200 enters the protrusion 130 while rubbing. It is easy and the sub printed wiring board is firmly fixed to the main printed wiring board 100.

  FIG. 14 is an exploded perspective view of the coupling structure proposed by Patent Document 2 as the second preceding example. In this coupling structure, the distance between the outer sides of the elastic portions 420 of the sub-board 400 is longer than the length of the hole 310 of the main board 300, and the mounting portion 410 of the sub-board 400 is connected to the hole of the main board 300. When inserted into 310, the elastic parts 420, 420 are pressed against both ends of the hole 310. Then, the sub board 400 is assumed to stand on the main board 300 without being inclined.

  FIG. 15 is a perspective view of a coupling structure proposed by Patent Document 3 as a third prior example. In this coupling structure, the circuit board 600 is erected on the plate surface of the main circuit board 500 and the fixing board 800 is stretched between the casing 700 so that the circuit board 600 is maintained in the standing posture. Yes.

Japanese Utility Model Publication No. 59-143071 JP 2003-304044 A JP 2005-302820 A

  However, the conventional flat plate joint structure described at the beginning has the following problems. That is, in the case where the second flat plate member provided with the insertion piece is formed of the wiring board, the insertion piece is simply inserted into the insertion hole of the first flat plate member, so that the second flat plate member is mounted. There was a tendency to tilt. Further, in the case where the second flat plate material provided with the insertion piece is made of sheet metal, the protruding portion is twisted and deformed from the insertion hole of the insertion piece inserted into the insertion hole, so that it is prevented from coming off. Therefore, an extra step of twisting and deforming the protruding portion of the insertion piece is necessary.

  Further, in the first preceding example shown in FIG. 13, the protrusion 130 merely presses the fitting end portion 200 of the sub printed wiring board and fixes the fitting end portion 200 of the sub printed wiring board. There is a risk that the sub-printed wiring board may tilt or come out of the long hole 120 due to the influence of an unexpected external force or vibration.

  The second prior example shown in FIG. 14 requires the sub-board 400 to be provided with the elastic portions 420 and 420, so that the shape of the sub-board 400 becomes complicated, and the sub-board 400 together with the other boards is made from the board base material. In the case of cutting out, the yield may be reduced.

  In the third preceding example shown in FIG. 5, since it is necessary to use an extra fixing substrate 800 to maintain the standing posture of the circuit board 600, the number of parts increases, assembly fixing becomes complicated, and the cost increases. It is also expensive.

  The present invention has been made in view of the above problems and situations, and the other flat plate on the other side is inserted into the slit-like insertion hole formed on the first flat plate on one side of the two flat plates. The insertion piece protruding from the straight edge of the material is basically inserted, and after joining the two flat plates without twisting and deforming the insertion piece, the first flat plate on one side is joined. It is an object of the present invention to provide a flat plate material coupling structure in which the second flat plate material on the other side is not easily dropped or the second flat plate material is not easily tilted.

  It is another object of the present invention to provide a flat plate joint structure in which the second flat plate member is joined to the first flat plate member without rattling.

  Furthermore, an object of the present invention is to make it possible to easily perform the process of inserting the insertion piece of the second flat plate material into the insertion hole of the first flat plate material.

  Furthermore, the present invention can be applied to both the first and second flat plate members, both of which are wiring boards, both of which are sheet metal, one of which is a wiring board and the other of which is a sheet metal. An object of the present invention is to provide a flat plate bonding structure.

  The flat plate joining structure according to the present invention projects from the straight edge of the second flat plate on the other side into the slit-like insertion hole formed on the first flat plate on one side of the two flat plates. Inserted piece is inserted. And the protrusion part comprised by the hole wall surface of the said insertion hole is fitted in the opening formed in the said insertion piece.

  According to this configuration, the protrusion is engaged with the lip of the opening of the insertion piece to prevent the insertion piece from coming out of the insertion hole.

  In the present invention, it is desirable that the design dimensions of the insertion hole have a vertical width and a horizontal width that are the same as the design dimensions of the thickness and width of the insertion piece, respectively. In other words, the wobbling of the first flat plate material that may occur due to the influence of external force or vibration is suppressed to the minimum. Here, the “designed dimension” is a dimension determined by design, and a dimension within an allowable error range is included in the designed dimension.

  In the present invention, it is desirable that the protruding end portion of the insertion piece is thinner as the thickness is closer to the tip, and the lateral width is shorter as the location is closer to the tip. With this configuration, even if the design dimensions of the insertion hole are the same as the design dimensions of the thickness and width of the insertion piece, the protruding end of the insertion piece This shape helps to improve workability when inserting the insertion piece into the insertion hole. Therefore, even if the protrusion is formed on the hole wall surface of the insertion hole having a narrow vertical width, the insertion piece can be easily inserted into the insertion hole.

  In the present invention, it is desirable that the straight edges on both sides of the insertion piece in the second flat plate material are abutted against the plate surfaces on both sides of the opening in the first flat plate material. With this configuration, the second flat plate material is prevented from being inclined by the fact that the straight edges on both sides of the insertion piece of the second flat plate material overlap the plate surface of the first flat plate material.

  In the present invention, the end face of the protrusion is flat in the depth direction of the insertion hole that coincides with the thickness direction of the first flat plate member, and in the lateral width direction of the insertion hole, the center side in the longitudinal width direction of the insertion hole It is possible to adopt a configuration in which it is formed in a curved shape projecting toward the top. When the end surface of the protruding portion is formed in this shape, the vertical width of the insertion hole is widened at the positions where the edges on both sides in the width direction of the protruding portion are located, and narrowed at the center in the width direction of the protruding portion. Therefore, when inserting the insertion piece into the insertion hole, the insertion piece is inserted while gradually approaching the center portion from the position where the edges on both sides in the lateral width direction of the protruding portion are positioned, thereby making it easier to insert the insertion piece. is there.

  In the present invention, the opening of the insertion piece is formed in a horizontally-long rectangular shape, and the projecting portion fitted in the opening has the edges on both sides in the width direction of the opening abutting the edges on both sides of the opening in the width direction. It is desirable that the edges on both sides in the thickness direction are in contact with the edges on the both sides in the vertical width direction of the opening. With this configuration, the mouth edge of the opening and the peripheral edge of the protruding portion come into contact with each other, and the inclination of the second flat plate material is prevented.

  In the present invention, the surface of the protruding portion may be a spherical surface.

  In the present invention, even if the projecting portion is formed in a form facing the pair of hole wall surfaces facing in the longitudinal width direction of the insertion hole in the longitudinal width direction, the projecting portion is formed in the longitudinal direction of the insertion hole. It may be arranged in a staggered manner on a pair of hole wall surfaces facing in the width direction.

  In the present invention, a doubly-supported beam portion having elasticity for partitioning the slit and the insertion hole by forming a long slit in one side or both sides of the insertion hole in the first flat plate in the width direction of the insertion hole. It is possible to adopt a configuration in which the both-end supported beam portion is bent when the insertion piece gets over the protruding portion while the insertion piece is inserted into the insertion hole. Therefore, it becomes easy to insert the insertion piece.

  In the present invention, at least one of the first and second flat plate members may be a wiring board, or at least one of the first and second flat plate members may be a sheet metal. These configurations include the location where the wiring board of the electrical equipment is connected to the standing board, the location where the wiring board and the connector such as the jack are made of sheet metal, and the legs of the electromagnetic shield plate made of the metal sheet. It is possible to apply to a joint location.

  As described above, the present invention protrudes from the straight edge of the second flat plate on the other side into the slit-like insertion hole formed on the first flat plate on one side of the two flat plates. Although the inserted piece is basically inserted, it is not necessary to add extra parts, and the two pieces of flat plate material can be formed without twisting or deforming the inserted piece. After the bonding, the flat plate material coupling structure in which the second flat plate material on the other side does not fall off, the second flat plate material is inclined, or the second flat plate material does not rattle after being bonded. Can be provided.

  Further, according to the present invention, the insertion process of the insertion piece of the second flat plate material into the insertion hole of the first flat plate material is facilitated even if the vertical width of the insertion hole is narrowed to the thickness of the wiring board. It is possible to be able to do that.

  Furthermore, the present invention can be applied to both the first and second flat plate members, both of which are wiring boards, both of which are sheet metal, one of which is a wiring board and the other of which is a sheet metal. It is.

It is a disassembled perspective view of the flat material joint structure concerning an embodiment of the present invention. It is the top view which showed the specific shape of the insertion hole. It is explanatory drawing which showed the procedure of the joint work process. It is explanatory drawing which showed another procedure of the joint work process. It is a vertical sectional view of a flat plate material coupling structure. FIG. 6 is a sectional view taken along line VI-VI in FIG. 5. It is the VII-VII sectional view taken on the line of FIG. It is the top view which showed the modification of the insertion hole. It is the top view which showed the other modification of the insertion hole. It is the top view which showed the modification of the protrusion part. It is the top view which showed the modification of the arrangement | sequence of a protrusion part. It is the top view which showed the other modification of the protrusion part.

  FIG. 1 is an exploded perspective view of a flat plate material coupling structure according to an embodiment of the present invention, and FIG. 2 is a plan view showing a specific shape of the insertion hole 12. 3 is an explanatory view showing the procedure of the joining work process, FIG. 4 is an explanatory view showing another procedure of the joining work process, FIG. 5 is a vertical sectional view of the flat plate joining structure, and FIG. 5 is a sectional view taken along line VI-VI, and FIG. 7 is a sectional view taken along line VII-VII in FIG.

  As shown in FIG. 1, the flat plate material coupling structure shown in FIG. 1 is inserted into the slit-like insertion hole 12 formed in the first flat plate material 10 on one side of the two flat plate materials 10 and 50 on the other side. It is configured by inserting an insertion piece 52 projecting from a straight edge 51 of the second flat plate member 50. As shown in FIG. 5 or FIG. 6, in the state where the second flat plate member 50 is coupled to the first flat plate member 10, the first flat plate member 10 rises from the second flat plate member 50.

  The second flat plate member 50 is formed in a rectangular shape. In the example shown in the figure, the fixed-width region of the lower side when the rectangular second flat plate member 50 is in the standing posture is removed by a fixed length from both sides in the lateral width direction, so that the insertion piece 52 is formed on the lower side. Located in the center. Further, the edges 53, 53 on both sides of the insertion piece 52 in the horizontal width direction (corresponding to the horizontal width direction of the insertion piece 52) of the second flat plate material 50 and the second flat plate material 50 on both sides of the insertion piece 52 are below. The side edges 51, 51 intersect at right angles, and these edges 51, 53 form a corner portion 54. By adopting a means in which the protruding end portion (the lower end portion of the insertion piece 52) 55 of the insertion piece 52 is formed with inclined surfaces on both the front and back surfaces of the insertion piece 52, the thickness thereof becomes thinner as the position is closer to the tip. It is like that. At the same time, by adopting a means in which the protruding end portion 55 of the insertion piece 52 is not chamfered at both ends in the width direction X1 of the insertion piece 52, the width of the insertion piece 52 becomes shorter as it approaches the tip. It is. Furthermore, the front and back surfaces of the second flat plate member 50 and the front and back surfaces of the insertion piece 52 are flush with each other. Accordingly, the thickness of the portion excluding the protruding end portion 55 of the insertion piece 52 is the same as the thickness of the second flat plate member 50. Further, as shown in the figure, a horizontally-long rectangular opening 56 is formed at the center of the insertion piece 52 in the width direction X1. In the illustrated example, the design dimension of the vertical width of the opening 56 is set to the same dimension as the thickness of the first flat plate member 10. The “design dimension” is a dimension determined by design, and a dimension within an allowable error range is included in the design dimension.

  The slit-like insertion hole 12 formed in the first flat plate 10 is a horizontally long rectangle. As shown in FIG. 2, protrusions 20, 20 having the same shape are formed on a pair of hole wall surfaces 13, 13 facing each other in the longitudinal width direction Y 2 of the insertion hole 12. Each of these protrusions 20, 20 is located in the center of the hole wall surface 13, 13 in the lateral width direction X 2 of the insertion hole 12, and is opposed to each other in the vertical width direction Y 2 of the insertion hole 12. The design dimensions of the vertical width and the horizontal width of the insertion hole 12 are respectively determined to be the same as the design dimensions of the thickness and the width of the insertion piece 52 described above. Moreover, the protrusion part 20 is formed in planar view circular arc shape so that it may become clear by seeing FIG.1 and FIG.2 together. In other words, the protruding portion 20 has an end surface 21 that is flat in the depth direction of the insertion hole 12 that coincides with the thickness direction T (see FIG. 1) of the first flat plate member 10, and the lateral width of the insertion hole 12. In the direction X2, the insertion hole 12 is formed in a curved shape (arc shape) projecting toward the center in the longitudinal width direction Y2. The projecting portion 20 has a lateral width that is set to the same design dimensions as the lateral width of the opening 56 formed in the insertion piece 52. Furthermore, the thickness of the protrusion 20 is set to the same design dimension as the vertical width of the opening 56, in other words, the same as the vertical width of the hole wall surface 13, in other words, the same as the thickness of the second flat plate 10. Yes.

  Next, the procedure of the assembly work process of the flat plate joint structure according to the embodiment will be described.

  FIG. 3 shows an example of the procedure. As shown in the figure, the insertion piece 52 of the second flat plate member 50 is inserted into the insertion hole 12 from the top of the first flat plate member 10 maintained in the horizontal position into the insertion hole 12 as indicated by an arrow P1 in the figure. At this time, the thickness of the protruding end portion 55 of the insertion piece 52 becomes thinner as the position is closer to the tip, and the lateral width of the protruding end portion is shorter as the location is closer to the tip. It ’s useful. That is, since the projecting end portion 55 is provided with the inclined surface 57 and the chamfered surface 58, the inclined surface 57 slides with the projecting portion 20 and helps guide the insertion piece 52 to the insertion hole 12. The surface 58 serves to slide the hole edge of the insertion hole 12 to guide the insertion piece 52 to the insertion hole 12. Therefore, even if the vertical width of the insertion hole 12 is as short as the thickness of the insertion piece 52 and is very narrow, the insertion piece 52 can be easily inserted into the insertion hole 12.

  FIG. 4 shows an example of another procedure. In this case, a part of the insertion piece 52 of the second flat plate member 50 in the width direction is once inclined and inserted into the insertion hole 12 from above the first flat plate member 10 maintained in a horizontal posture. According to this procedure, the insertion piece 52 can be inserted into the insertion hole 12 without difficulty as compared with the case where the entire insertion piece 52 is inserted into the insertion hole 12 at once (when the procedure of FIG. 3 is adopted). Also at this time, the inclined surface 57 of the projecting end portion 55 formed in the insertion piece 52 slides with the projection portion 20 to help guide the insertion piece 52 into the insertion hole 12, and the chamfered surface 58 is inserted into the insertion portion 52. It slides with the hole edge of the hole 12 to help guide the insertion piece 52 into the insertion hole 12. Therefore, coupled with the inductive action of the insertion piece 52 being inclined, the insertion piece 52 is inserted into the insertion hole 52 even if the insertion hole 12 has a vertical width that is as short as the thickness of the insertion piece 52. 52 becomes easy to insert.

  When the insertion piece 52 is inserted into the insertion hole 12 and inserted by the procedure shown in FIG. 3, the insertion piece 52 gets over the protrusion 20 while being compressed and elastically deformed, and the protrusion 20 is fitted into the opening 56. Thus, the first flat plate member 10 and the second flat plate member 50 are joined together as shown in FIG.

  Similarly, when the insertion piece 52 is inserted into the insertion hole 12 and inserted in the procedure shown in FIG. 4, the insertion piece 52 gets over the projection 20 while compressing and elastically deforming in the middle of the insertion piece 52. As shown in FIG. 5, the first flat plate 10 and the second flat plate 50 are joined together. Here, in particular, when the procedure shown in FIG. 4 is adopted, the insertion piece 52 is inclined and inserted, so that the insertion piece 52 has a small protruding width of the end surface 21 (see FIG. 2) of the arcuate portion 20 in plan view. The insertion piece 52 can easily get over the protruding portion 20 by sliding from the end side to the center side where many slides. Therefore, there is an advantage that the insertion piece 52 can be inserted into the insertion hole 12 without difficulty.

  When the first flat plate member 10 and the second flat plate member 50 are joined, the second flat plate member 50 rises vertically from the first flat plate member 10 as shown in FIG. In this connection structure, as shown in FIG. 7, the four hole wall surfaces in the horizontal width direction X <b> 2 and the vertical width direction Y <b> 1 of the horizontally long insertion hole 12 are the front and back surfaces of the insertion piece 52 and the horizontal width direction (the horizontal width of the second flat plate member 50). The straight edges 51 and 51 on both sides of the insertion piece 52 in the second flat plate member 50 are the openings 56 in the first flat plate member 10 as shown in FIG. As shown in FIG. 7, the mouth edges on both sides in the width direction of the opening 56 of the insertion piece 52 and the edges on both sides in the width direction of the projecting portion 20 come into contact with each other as shown in FIG. The edges on both sides in the longitudinal width direction of the opening 56 are in contact with the edges on both sides in the thickness direction of the protrusion 20 (corresponding to the thickness direction T of the first flat plate material 10). Therefore, the second flat plate member 50 is joined to the first flat plate member 10 without rattling.

  FIG. 8 is a plan view of the first flat plate material 10 showing an example in which the insertion piece 52 (see FIG. 1) can be more easily inserted into the insertion hole 12. In this example, by forming long slits 14 and 14 in the lateral width direction X2 of the insertion hole 12 on both sides of the insertion hole 12 in the first flat plate 10 in the longitudinal width direction Y2, the slits 12 and 12 and the insertion hole are formed. 12 is formed with both end-supporting beam portions 15 and 15 having elasticity. With this configuration, when the insertion piece 52 inserted into the insertion hole 12 gets over the protrusions 20, 20, the doubly supported beam portions 15, 15 are bent and deformed outward due to their elasticity. 52 can be easily inserted into the insertion hole 12.

  FIG. 9 is a plan view of an example in which one protrusion 20 is provided only on the hole wall surface 13 on one side of the insertion hole 12 in the longitudinal width direction Y2. FIG. 10 is a plan view of an example in which the shape of the projecting portion 20 shown in FIG. 2 is changed to a shape that is formed in a substantially rectangular shape in plan view and the corner portion is rounded. Further, FIG. 11 shows an example in which a plurality of protrusions 20 are arranged in a staggered manner on a pair of hole wall surfaces facing each other in the longitudinal width direction of the insertion hole 12. In the thing of FIG. 11, the opening 56 which each protrusion part 20 fits in the insertion piece 52 is formed. FIG. 12 is a vertical sectional view of an example in which the shape of the protruding piece 20 is formed in a circular shape in front view. As described above, in the present invention, the shape and arrangement of the protruding pieces 20 can be variously changed.

  In the above-described embodiment, both the first flat plate member 10 and the second flat plate member 50 may be wiring boards, or only one of them may be a wiring board. As an example in which the wiring board is used for both, there is a case in which the second flat plate material 50 as the standing substrate is coupled to the main board of the electric device made of the first flat plate material 10. As an example in which the wiring board is used only for the first flat plate member 10 on one side, the second flat plate member 50 on the other side is a sheet metal leg piece made of a sheet metal electromagnetic shield plate or a connector such as a jack. Is possible.

  Moreover, even if both of the 1st flat plate material 10 and the 2nd flat plate material 50 are sheet metal, only one of them may be sheet metal. An example in which sheet metal is used for both is a sheet metal cabinet coupled with a leg piece of an electromagnetic wave shielding plate.

DESCRIPTION OF SYMBOLS 10 1st flat plate material 12 Insertion hole 13 Hole wall surface of insertion hole 14 Slit 15 Both-end supported beam part 20 Projection part 21 End surface of projection part 50 2nd flat plate material 51 Edge of 2nd flat plate material 52 Insertion piece 55 Protrusion of insertion piece End 56 Opening T Thickness direction of first flat plate material X2 Horizontal width direction of insertion hole Y1 Vertical width direction of insertion hole

Claims (12)

An insertion piece protruding from the straight edge of the second flat plate on the other side is inserted into a slit-like insertion hole formed on the first flat plate on one side of the two flat plates. In flat plate joint structure,
A flat plate material joining structure, wherein a protrusion provided on a hole wall surface of the insertion hole is fitted in an opening formed in the insertion piece.   2. The flat plate material coupling structure according to claim 1, wherein the design dimensions of the insertion hole have a vertical width and a horizontal width that are the same as the design dimensions of the thickness and width of the insertion piece, respectively.   3. The flat plate material coupling structure according to claim 1, wherein the protruding end portion of the insertion piece is thinner as the thickness is closer to the tip, and the lateral width is shorter as the location is closer to the tip. .   The flat plate material according to any one of claims 1 to 3, wherein straight end edges on both sides of the insertion piece in the second flat plate material are abutted against plate surfaces on both sides of the opening in the first flat plate material. Bond structure.   The end surface of the protruding portion is flat in the depth direction of the insertion hole that coincides with the thickness direction of the first flat plate member, and in the lateral width direction of the insertion hole, the curve protruding toward the center side in the vertical width direction of the insertion hole The flat plate joint structure according to any one of claims 1 to 4, which is formed in a shape.   The opening of the insertion piece is formed in a horizontally-long rectangular shape, and the protrusions fitted in the opening are in contact with the edges on both sides in the width direction of the opening, and The flat plate material coupling structure according to any one of claims 1 to 5, wherein edges on both sides in the thickness direction are in contact with edges on both sides in the longitudinal width direction of the opening.   The flat plate material coupling structure according to any one of claims 1 to 3, wherein a surface of the protruding portion is a spherical surface.   The flat plate according to any one of claims 1 to 7, wherein the protruding portion is formed in a form opposed to a pair of hole wall surfaces facing in the longitudinal width direction of the insertion hole in the longitudinal width direction. Material bonded structure.   The flat plate material coupling structure according to any one of claims 1 to 7, wherein the protrusions are arranged in a staggered manner on a pair of hole wall surfaces facing in the longitudinal width direction of the insertion hole.   By forming a long slit in the lateral width direction of the insertion hole on one side or both sides of the insertion hole in the first flat plate member, a doubly supported beam portion having elasticity to partition the slit and the insertion hole is formed. The flat plate joint structure according to any one of claims 1 to 9.   The flat plate material coupling structure according to any one of claims 1 to 10, wherein at least one of the first and second flat plate materials is a wiring board.   The flat plate joint structure according to any one of claims 1 to 10, wherein at least one of the first and second flat plates is a sheet metal.

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