Curing jig

Abstract

To provide a curing jig which can improve work efficiency and shorten work time in curing work with respect to a joint part of a construction member, and to provide the curing jig which does not generate waste materials accompanying the curing work.SOLUTION: A curing jig 1 is used for curing a joint part of a beam B having a joint part where a high strength bolt S is inserted. The curing jig includes a pair of curing members 10 for curing one surface of the joint part and the other surface opposing to the one surface respectively. The curing member 10 includes: a covering body 2 having a covering surface 21 for covering one surface or the other surface of the joint part; and a protrusion member 3 protruding in the direction orthogonal to the covering surface 21 from the covering body 2, and inserted in a bolt hole B4 of a beam B. The protrusion members 3 of the pair of curing members 10 are connected with each other when inserted in the bolt hole from one surface and the other surface of the joint part, and the covering body 2 of the pair of curing members 10 cover the one surface and the other surface by sandwiching the joint part when the protrusion members 3 are connected with each other.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] The present invention relates to a curing jig, and more particularly to a curing jig for construction members having joints. [Background technology]

[0002] Conventionally, when joining construction members consisting of beams or columns to each other, a friction joint is used in which a gusset plate is attached to the construction member and high-strength bolts are fastened to join the construction members. Here, friction joints will be explained below using an example of joining beams to each other. The end of the beam and the gusset plate are formed with a plurality of bolt holes through which high-strength bolts can be inserted. Then, a gusset plate is attached to the end of the beams to be joined, and high-strength bolts are inserted into the bolt holes and fastened, generating a large compressive force between the beam and the gusset plate. As a result, high frictional resistance is generated between the beam and the gusset plate. In other words, the beams to be joined to each other are fixed by frictional force, allowing for a high-strength joint without concentrating stress at one location.

[0003] On the other hand, in order to improve environmental resistance and durability, the beams are painted. Specifically, the beams are coated with paint that has high heat resistance and rust prevention properties, thereby achieving the desired environmental resistance and durability. However, if the entire beam is painted, the paint may reduce the coefficient of friction between the beam and the gusset plate, resulting in a decrease in joint strength. Therefore, prior to painting, masking tape is applied to the joint between the sub-beam and the gusset plate to prevent the paint from adhering to the joint. This creates a painted area where the paint is applied and a friction area that prevents the paint from adhering and creates a high coefficient of friction, achieving both environmental resistance, durability, and high joint strength.

[0004] Patent Document 1 discloses a masking tape that can efficiently protect joints. Specifically, it discloses a masking tape with a predetermined width and a masking method that can accurately form painted areas and friction areas by applying the masking tape based on the positions of the bolt holes in the beam. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2014-104449 Summary of the Invention [Problem to be solved by the invention]

[0006] Although the use of the masking tape described in Patent Document 1 improves the efficiency of protective work, the application of masking tape to the joints takes time, so further improvements and a reduction in work time are desired. Furthermore, since masking tape is discarded after painting is completed, there is a need to reduce waste.

[0007] The present invention has been made in consideration of the above-mentioned problems, and an object of the present invention is to provide a curing jig that can improve the work efficiency and shorten the work time for curing work on joints of construction members. Another object of the present invention is to provide a curing jig that does not generate waste during the curing work. [Means for solving the problem]

[0008] The above problem is solved by a curing jig of the present invention, which is a curing jig used to cure a joint of construction members having a joint through which a fastener is inserted, and which comprises a set of curing members for curing one side of the joint and the other side opposite the one side, wherein the curing members have a planar covering body having a covering surface that covers the one side or the other side of the joint, and protruding members that protrude from the planar covering body in a direction perpendicular to the covering surface and are inserted into insertion holes in the construction members through which the fastener can be inserted, and the protruding members of the set of curing members connect to each other when inserted into the insertion holes from the one side and the other side of the joint, and the covering planar body of the set of curing members covers the one side and the other side across the joint when the protruding members are connected to each other.

[0009] According to the above configuration, the curing jig includes a set of curing members, each of which includes a planar covering having a covering surface that covers the joint and protruding members that connect to each other when inserted from both sides of the joint through insertion holes through which fasteners are inserted. When the protruding members connect to each other, the planar covering covers both sides of the joint. Therefore, the joint of the construction members can be cured by the simple process of sandwiching the joint and connecting the protruding members, thereby improving the efficiency of the curing work and reducing the work time. Furthermore, because no masking tape is used, the joint of the construction members can be cured without generating waste during the curing work.

[0010] In addition, the protruding member has an engaging recess and an engaging convex portion that can be engaged with the engaging recess, and the engaging recess and the engaging convex portion protrude adjacent to each other from the covering surface and are inserted into the same insertion hole, and the protruding members of the set of protective members are connected to each other by engaging the respective engaging recesses and engaging convex portions. According to the above configuration, since the mating recess and mating protrusion are inserted into the same insertion hole, it is possible to prevent a decrease in the connecting force due to deformation of the protruding member when the mating recess and mating protrusion are mated, and therefore it is possible to prevent the protective jig from accidentally falling off the workpiece during painting of the workpiece.

[0011] Furthermore, the mating recess has a side wall that forms a semicircular recess when viewed from the mating direction, and the mating protrusion has a side wall that forms a semicircular protrusion when viewed from the mating direction, and when the protruding member is inserted into the insertion hole, the circumferential portions of the side walls of the mating recess and the mating protrusion extend along the outer periphery of the insertion hole. According to the above configuration, by inserting the semicircular fitting recess and fitting protrusion into the circular insertion hole, it is possible to easily align the curing jig to the curing position of the workpiece.

[0012] In addition, the protruding member has a mating recess that has a circular shape when viewed from the mating direction, and a mating convex portion that has a circular shape when viewed from the mating direction and can be mated with the mating recess, the mating recess and the mating convex portion protruding in opposite directions from the planar covering body, and the protruding members of the set of protective members are connected to each other by mating the mating recess and the mating convex portion with each other. According to the above configuration, the construction material can be cured by a simple operation of mating the mating recess and mating protrusion, which have a simple shape (circular), thereby reducing the manufacturing cost of the curing jig and improving the work efficiency of the curing work.

[0013] Furthermore, the planar covering body has the covering surface, an opposing surface opposite the covering surface, and a side surface interposed between the covering surface and the opposing surface, and the side surface is provided with a connecting portion that connects to other protective members arranged adjacent to each other in a direction perpendicular to the side surface, and the connecting portion has a connecting recess and a connecting protrusion that can be fitted together. According to the above configuration, by connecting multiple curing members via connecting parts, it is possible to flexibly accommodate construction members having various dimensions depending on the standard, and it is also possible to easily align multiple curing members.

[0014] Furthermore, the planar coating body has the coating surface, an opposing surface facing the coating surface, and a side surface interposed between the coating surface and the opposing surface, and the side surface preferably has an inclined surface that is inclined relative to the coating surface and the opposing surface. According to the above configuration, since the side surface has an inclined surface, it is possible to suppress a decrease in painting efficiency near the side surface of the protection member.

[0015] The side surface may have a vertical surface that is bent perpendicularly from the covering surface, and an inclined surface that extends from the vertical surface at an angle relative to the covering surface and the opposing surface. According to the above configuration, since the side surfaces have vertical and inclined surfaces, when multiple protective members are connected with their vertical surfaces abutting each other, it is possible to prevent paint from penetrating between the protective members and adhering to the friction area.

[0016] In addition, it is preferable that the curing member is provided with a type indication that enables the type of the curing jig to be identified. According to the above configuration, since the curing members are labeled with a type, it is possible to easily distinguish the types of curing members having various uses, dimensions, or shapes. [Effects of the Invention]

[0017] The curing jig of the present invention makes it possible to improve the efficiency of curing work and reduce the work time. Furthermore, the curing jig of the present invention makes it possible to prevent waste from being generated during the curing work. [Brief explanation of the drawings]

[0018] [Figure 1] FIG. 1 is a perspective view of a beam and a curing jig. [Figure 2] FIG. 10 is an explanatory diagram of a beam joint. [Figure 3] FIG. [Figure 4] FIG. 1 is a view of the protective member from the covered surface. [Figure 5] FIG. 2 is a view of the curing member from a first side. [Figure 6] FIG. 10 is a view of the curing member from a third side. [Figure 7] This is a diagram showing the state in which a protective jig is attached to a beam and painted. [Figure 8] FIG. 10 is an enlarged view of the main part of the curing jig attached to a thin web. [Figure 9] FIG. 10 is an enlarged view of the main part of the curing jig attached to a thick web. [Figure 10] FIG. 10 is a perspective view of a curing member according to a modified example. [Figure 11] FIG. 10 is a side view of a curing member according to a modified example, viewed from a third side surface. [Figure 12] FIG. 10 is a perspective view of a curing member according to a second modified example. [Figure 13] FIG. 10 is a front view of a beam to which a curing jig according to a second modified example is attached. [Figure 14] FIG. 10 is a perspective view of a curing member according to a third modified example. [Figure 15] FIG. 11 is a front view of a beam to which a curing jig according to a third modified example is attached. [Figure 16] FIG. 10 is an explanatory diagram of a joint portion of a gusset plate. DETAILED DESCRIPTION OF THE INVENTION

[0019] A curing jig 1 according to one embodiment of the present invention (hereinafter referred to as the present embodiment) will be described below with reference to Figures 1 to 9. However, the embodiment described below is merely an example to facilitate understanding of the present invention and does not limit the present invention. In other words, the present invention can be modified and improved without departing from the spirit thereof, and of course, the present invention also includes equivalents thereof.

[0020] <Overview of Curing Jig 1> First, an overview of the curing jig 1 will be described. The curing jig 1 is used to prevent paint P from adhering to the joints of beams B. To explain in more detail, beams B are generally coated with paint P for the purposes of improving environmental resistance, durability, and aesthetics. On the other hand, when joining beams B to columns or other beams B, in order to ensure the frictional force in the frictional joint, it is necessary to prevent the adhesion of paint P, which reduces the friction coefficient. For this reason, the curing jig 1 is used to cure the joints of beams B and ensure the frictional force required for the frictional joint.

[0021] Fig. 1 shows a perspective view of a beam B and a curing jig 1 attached to the beam B. Fig. 2 shows a perspective view of the joint of the beam B (friction regions Rf located on both sides of the joint). 1 and 2, the beam B is an H-shaped steel beam having a long shape, and mainly comprises an upper flange B1, a lower flange B2 facing the upper flange B1, and a web B3 interposed between the upper flange B1 and the lower flange B2. The upper flange B1, the lower flange B2, and the web B3 are steel plates extending in the longitudinal direction of the beam B.

[0022] As shown in Fig. 2, a friction region Rf is formed at the end of the web B3 to obtain the frictional force required for frictional joining. The friction region Rf is a region different from the painted region Rp to which the paint P is applied, and is a region that prevents the paint P from adhering and ensures a high coefficient of friction between the web B3 and the gusset plate G. In other words, the friction region Rf is formed on both sides of the web B3 (one side and the other side opposite the one side), and is a region that is covered with the protective member 10 to prevent the paint P from adhering. The portion of the web B3 where the friction region Rf is formed on both sides corresponds to the joint.

[0023] Bolt holes B4 penetrating the web B3 are formed in the friction region Rf. High-strength bolts S are inserted into the bolt holes B4 when joining the beams B. In Figures 1 and 2, two bolt holes B4 are formed in the vertical direction, but the number and arrangement of the bolt holes B4 are not limited to the number and arrangement shown in Figures 1 and 2. Three or more bolt holes B4 may be formed. Also, the beam B is a minor beam, but is not limited to this. The beam B may also be a major beam. The bolt holes B4 correspond to insertion holes.

[0024] The curing jig 1 mainly comprises curing members 10a and 10b that cure the friction regions Rf formed on both sides of the web B3. While one curing member 10a and one curing member 10b are shown in Fig. 1, this is not limiting. The curing jig 1 may also comprise a set of curing members 10a and 10b, each consisting of a plurality of curing members 10a and 10b. The curing members 10a and 10b have the same shape, dimensions and configuration, and therefore in the following description, unless there is a particular need to distinguish between them, they will be simply referred to as "curing member 10."

[0025] <Covering material 10> Figure 3 shows an oblique view of the curing member 10, Figure 4 shows the curing member 10 viewed from the covering surface 21, Figure 5 shows the curing member 10 viewed from the first side 23, and Figure 6 shows the curing member 10 viewed from the third side 25. The protective member 10 is made of resin and is molded as a single unit using additive manufacturing technology with a 3D printer. The 3D printer uses three-dimensional model data representing the desired three-dimensional shape to form a three-dimensional structure by stacking multiple layers made of resin material. By molding the protective member 10 with a 3D printer, it is possible to reduce the weight and cost of the protective member 10.

[0026] As shown in Figures 3 to 6, the protective member 10 has a covering body 2 having a covering surface 21 that covers the friction area Rf, and a protruding member 3 that protrudes from the covering surface 21 in a direction perpendicular to the covering surface 21. The curing member 10 connects the protruding members 3 from both sides of the web B3 by inserting them into the bolt holes B4, and curing the joint of the beam B by covering the friction region Rf with the covering surface 21.

[0027] The covering body 2 has a covering surface 21, an opposing surface 22 opposing the covering surface 21, and a first side surface 23, a second side surface 24, and a third side surface 25 interposed between the covering surface 21 and the opposing surface 22. The covering surface 21 is a flat surface that abuts against the web B3 and makes surface contact with the web B3. The covering surface 21 has dimensions equal to or larger than the friction area Rf, and by covering the friction area Rf, it prevents the paint P from adhering to the friction area Rf. As an example, the dimensions of the covering surface 21 are 160 mm x 90 mm, but are not limited to this. The covering surface 21 may have any size that can cover the friction area Rf.

[0028] The facing surface 22 is a flat surface facing the covering surface 21. The facing surface 22 is coated with a colored paint (not shown) that allows the type of curing jig 1 to be identified. More specifically, the curing member 10 has dimensions and shapes that correspond to multiple types of beams B having various dimensions defined by standards. Therefore, the facing surface 22 is provided with a type marking that allows the type of curing jig 1 to be identified in terms of its dimensions or shape, allowing the worker to easily identify the appropriate curing jig 1. However, as long as the worker can identify the type of curing jig 1, the facing surface 22 may be provided with letters or symbols indicating the type of curing jig 1.

[0029] The first side surface 23 and the second side surface 24 face each other. The first side surface 23 has a first vertical surface 231 that bends perpendicularly from the covering surface 21, and a first inclined surface 232 that extends from the first vertical surface 231 at an angle relative to the covering surface 21 and the opposing surface 22. The second side surface 24 has a second vertical surface 241 that bends perpendicularly from the coated surface 21 and faces the first vertical surface 231, and a second inclined surface 242 that extends from the second vertical surface 241 at an angle relative to the coated surface 21 and the opposing surface 22.

[0030] A connecting portion 4 is provided on the first vertical surface 231 and the second vertical surface 241. The connecting portion 4 has a connecting protrusion 41 provided on the first vertical surface 231 and a connecting recess 42 provided on the second vertical surface 241. The connecting protrusion 41 and the connecting recess 42 have shapes that allow them to be connected by fitting together. That is, the connecting protrusion 41 has a circular protrusion (cylindrical shape) protruding from the first vertical surface 231, and the connecting recess 42 has a circular recess that is recessed into the second vertical surface 241. Therefore, it is possible to connect with other curing members 10 arranged adjacent to each other in a direction perpendicular to the first side surface 23 and the second side surface 24 and attach them to the beam B.

[0031] The first inclined surface 232 and the second inclined surface 242 are inclined with respect to the coating surface 21 and the opposing surface 22. As a result, as will be described later with reference to FIG. 7, when painting the beam B, it is possible to suppress a decrease in painting efficiency in the vicinity of the first side surface 23 and the second side surface 24.

[0032] The third side surfaces 25 face each other. The third side surface 25 is interposed between the coated surface 21 and the opposing surface 22 and is vertically connected to the coated surface 21 and the opposing surface 22. This allows a worker to easily grip the third side surface 25, improving the handleability of the curing jig 1.

[0033] The protruding members 3 protrude from the covered surface 21 in a direction perpendicular to the covered surface 21, and are inserted into bolt holes B4 from both sides of the friction region Rf to connect to each other. The protruding members 3 have a first protruding member 3a located on the first side surface 23 side (left side in FIG. 4) and a second protruding member 3b located on the second side surface 24 side (right side in FIG. 4). The first protruding member 3a and the second protruding member 3b are provided corresponding to the arrangement of the bolt holes B4 formed in the beam B. Because the first protruding member 3a and the second protruding member 3b have the same shape, dimensions, and configuration, in the following description, unless there is a need to particularly distinguish between them, they will be simply referred to as "protruding member 3."

[0034] The protruding member 3 has a male fitting portion 32 and a female fitting portion 33. The male fitting portion 32 and the female fitting portion 33 have shapes that allow them to be connected by fitting together. Specifically, the male fitting portion 32 is a columnar convex portion having a base end portion 321 and a tip end portion 322, and has a flat side wall portion 323 that forms a semicircular convex portion when viewed from a direction perpendicular to the covering surface 21 (the fitting direction), and a curved side wall portion 324. On the other hand, the female fitting portion 33 is a columnar concave portion having a base end portion 331 and a tip end portion 332, and forms a semicircular shape when viewed from the fitting direction, and has a flat side wall portion 333 that faces the flat side wall portion 323 of the male fitting portion 32, and a curved side wall portion 334.

[0035] 8 and 9, the male fitting portion 32 and the female fitting portion 33 are inserted through the same bolt hole B4 and are positioned so that they abut against each other when mated. Therefore, when the male fitting portion 32 and the female fitting portion 33 are mated, the male fitting portion 32 or the female fitting portion 33 is prevented from elastically deforming and reducing the mating force. This allows the pair of protection members 10 disposed on both sides of the web B3 to be fixed to each other with sufficient mating force, making it possible to reliably prevent paint P from adhering between the web B3 and the protection member 10.

[0036] Furthermore, when the male fitting portion 32 and the female fitting portion 33 are inserted into the bolt hole B4, the curved side wall portion 324 of the male fitting portion 32 and the curved side wall portion 334 of the female fitting portion 33 extend along the outer periphery of the bolt hole B4. Therefore, by inserting the male fitting portion 32 and the female fitting portion 33 into the bolt hole B4, which has a circular hole shape, the curing member 10 can be easily aligned with the beam B. The curved side wall portion 324 and the curved side wall portion 334 correspond to the circumferential portion.

[0037] Additionally, a recessed portion 325 recessed from the coated surface 21 is formed around the base end 321 of the male fitting portion 32. The recessed portion 325 has a shape corresponding to the tip end 332 of the female fitting portion 33. Therefore, as will be described later, the recessed portion 325 can fit into the tip end 332 of the female fitting portion 33. As a result, even if the thickness of the web B3 is small, the female fitting portion 33 can be fitted into the recessed portion 325, allowing the coated surface 21 to abut against the friction region Rf of the web B3, and making it possible to prevent the paint P from adhering to the friction region Rf.

[0038] <How to use curing jig 1> Next, a method for using the curing jig 1 will be described. FIG. 7 shows the state in which the curing jig 1 is attached to a beam B and the beam B is being painted. As shown in FIG. 7, the curing members 10a and 10b are attached to both sides (one side and the other side opposite the one side) of the friction region Rf of the web B3. Specifically, the protruding members 3 consisting of the male fitting portion 32 and the female fitting portion 33 are inserted into the bolt holes B4 and are connected by fitting together. At this time, the friction region Rf of the web B3 is covered by the covering surface 21, making it possible to cure the joint of the beam B.

[0039] 8 and 9 are enlarged views of the main parts of the web B3, the curing member 10a covering one side of the web B3, and the curing member 10b covering the other side of the web B3. Fig. 8 shows the joint of the beam B with the web B3 having a thickness of 5 mm, and Fig. 9 shows the joint of the beam B with the web B3 having a thickness of 12 mm, both cured with the curing members 10a and 10b. 8 and 9, the male fitting portion 32 and the female fitting portion 33 are connected by fitting together. When the male fitting portion 32 and the female fitting portion 33 are fitted together, the covering surfaces 21 of the protective members 10a and 10b come into contact with and cover the friction region Rf of the web B3. Furthermore, because the female fitting portion 33 of the protective member 10a and the female fitting portion 33 of the protective member 10b come into contact with each other, deformation during fitting is suppressed.

[0040] Furthermore, the male fitting portion 32 and the female fitting portion 33 have dimensions that allow them to fit into beams B having thicknesses that vary depending on the standard, and the covering surface 21 can abut against and cover the friction region Rf. The thickness of the web B3 is not limited to 5 mm and 12 mm. Of course, the thickness of the web B3 may have a dimension other than 5 mm and 12 mm.

[0041] Furthermore, the dimension from the base end 321 to the tip end 322 of the male fitting portion 32 is equal to the dimension from the tip end 332 to the bottom wall portion 335 of the female fitting portion 33, and a recessed portion 325 is formed around the base end 321 of the male fitting portion 32. Therefore, even if the thickness of the web B3 is smaller than the height of the female fitting portion 33 (the dimension from the base end 331 to the tip end 332), it is possible to abut the covering surface 21 against the friction region Rf to cover the friction region Rf.

[0042] Returning to FIG. 7, once the curing members 10a, 10b are attached to both sides of the beam B, paint P is sprayed onto the beam B from a spray nozzle N. By being coated with paint P, the beam B's environmental resistance and durability are improved. Meanwhile, the friction regions Rf of the beam B located on both sides of the joint are covered by the curing members 10, and the paint P does not adhere to them.

[0043] In addition, a first inclined surface 232 is formed on the first side surface 23 of the curing member 10, and a second inclined surface 242 is formed on the second side surface 24. Therefore, the paint P can be effectively applied to the painting area Rp near the first side surface 23 and the second side surface 24, making it possible to prevent a decrease in the environmental resistance and durability of the beam B due to insufficient spraying of the paint P.

[0044] Once painting is complete, the curing jig 1 is removed from the web B3. Then, the gusset plate G is spliced ​​onto the beam B and frictionally joined to the construction member (beam or column) to be joined by the high-strength bolts S. As described above, the friction area Rf is prevented from receiving paint P by the curing member 10, so sufficient frictional force can be ensured between the beam B and the gusset plate G. Furthermore, by painting the painted area Rp of the beam B, the environmental resistance and durability of the beam B are improved.

[0045] As described above, by attaching the curing members 10 to both sides of the web B3 of the beam B, it is possible to easily cure the joint of the beam B. Therefore, compared to the case where masking tape is applied to the friction area Rf, it is possible to improve the efficiency of the curing work and reduce the work time. In addition, because no masking tape is used in the curing work for beam B, no masking tape is discarded after the painting work is completed. Therefore, no waste is generated during the curing work.

[0046] The curing jig 1 according to one embodiment of the present invention has been described above, but the above-described embodiment is merely an example to facilitate understanding of the present invention and does not limit the present invention. In the above-described embodiment, as shown in Figures 3 to 6, the covering body 2 has been described as having the covering surface 21, the opposing surface 22, the first side surface 23, the second side surface 24, and the third side surface 25, but the shape of the covering body 2 is not limited to this. The covering body 2 only needs to be able to cover the friction region Rf with the covering surface 21, and the covering body 2 only needs to be a planar body having the covering surface 21. Here, a planar body refers to an object having a film-like, sheet-like, thin plate-like, or other planar form, and the thickness, flexibility, and material of the covering body 2 are not important. The covering body 2 corresponds to a planar covering body.

[0047] <Modification> In the above-described embodiment, the protruding member 3 has been described as having the male fitting portion 32 and the female fitting portion 33 that protrude in the same direction, but this is not limited thereto. The protruding member 3 only needs to be able to fit together when inserted into the bolt hole B4, and the male fitting portion 32 and the female fitting portion 33 may protrude in opposite directions.

[0048] FIG. 10 is a perspective view of a curing member 10A of a curing jig 1A according to a modified example, and FIG. 11 is a view of the curing member 10A according to the modified example as seen from the third side surface 25. 10 and 11, the curing member 10A has a covering body 2A and protruding members 3A that protrude from the covering body 2A in a direction perpendicular to the covering surface 21. The curing member 10A connects the protruding members 3A by inserting them into bolt holes B4 from both sides of the web B3, and curing the beam B by covering the friction region Rf with the covering surface 21.

[0049] The covering body 2A has a covering surface 21 and an opposing surface 22 facing the covering surface 21. However, as described below, the male fitting portion 32A and the female fitting portion 33A protrude in opposite directions. Furthermore, the first side surface 23 and the second side surface 24 of the covering body 2A do not have inclined surfaces. Therefore, either the covering surface 21 or the opposing surface 22 may abut the joint portion of the web B3 and cover the friction region Rf.

[0050] The protruding member 3A has a first protruding member 3a located on the first side surface 23 side (left side in FIG. 11) and a second protruding member 3b located on the second side surface 24 side (right side in FIG. 11). Because the first protruding member 3a and the second protruding member 3b have the same shape, dimensions, and configuration, in the following description, they will be simply referred to as "protruding member 3A" unless there is a particular need to distinguish between them.

[0051] The protruding member 3A has a female fitting portion 33A that protrudes perpendicularly from the covered surface 21 to the covered surface 21, and a male fitting portion 32A that protrudes perpendicularly from the opposing surface 22 to the opposing surface 22. In other words, the male fitting portion 32A and the female fitting portion 33A protrude in opposite directions. It is also possible for the male fitting portion 32A to protrude from the covered surface 21, and the female fitting portion 33A to protrude from the opposing surface 22.

[0052] The male fitting portion 32A and the female fitting portion 33A have shapes that allow them to be connected by fitting together. Specifically, the male fitting portion 32A is a fitting convex portion that is circular when viewed from the fitting direction and has a curved side wall portion 324A. On the other hand, the female fitting portion 33A is a fitting concave portion that is circular when viewed from the fitting direction and has a curved side wall portion 334A. The male fitting portion 32A is inserted from one side of the joint of the beam B, and the female fitting portion 33A is inserted from the other side, and the male fitting portion 32A and the female fitting portion 33A are fitted together, thereby connecting the protruding members 3A to each other.

[0053] The curing jig 1A according to the modified example, like the embodiment described above, can be attached to both sides of the friction area Rf of the beam B, and can easily cure the friction area Rf. Therefore, compared to the case where masking tape is applied to the friction area Rf, it is possible to improve the efficiency of the curing work and reduce the work time. In addition, because no masking tape is used in the curing work for beam B, no masking tape is discarded after the painting work is completed. Therefore, no waste is generated during the curing work. Furthermore, compared to the above-described embodiment, the covering body 2A and the protruding member 3A can be made to have a simpler configuration, which makes it possible to reduce the manufacturing costs of the curing jig 1A.

[0054] <Second Modification> Next, a curing member 10B of a curing jig 1B according to a second modified example will be described. In the above-described embodiment, the curing member 10 has been described as having the first protruding member 3a and the second protruding member 3b, but is not limited to this. A curing member 10B according to the second modified example has a single protruding member 3B.

[0055] FIG. 12 shows a perspective view of a protective member 10B according to a second modified example. As shown in Figure 12, the curing member 10B has a covering body 2B and protruding members 3B that protrude from the covering surface 21 in a direction perpendicular to the covering surface 21. The curing members 10B are connected to each other by inserting a single protruding member 3B into bolt holes B4 from both sides of the web B3, and the covering surface 21 covers the friction region Rf, thereby curing the joint of the beam B. Furthermore, by connecting multiple curing members 10B to each other via connecting parts 4, it is possible to cover the friction region Rf of beams B of various sizes and shapes.

[0056] The coating body 2B has a coating surface 21B, an opposing surface 22B opposing the coating surface 21B, and a first side surface 23, a second side surface 24, and a third side surface 25 interposed between the coating surface 21B and the opposing surface 22B. The covering surface 21B is a flat surface that abuts against the web B3 and is in surface contact with the web B3. The covering surface 21B has dimensions smaller than the friction area Rf, and by connecting multiple curing jigs 1B, the entire friction area Rf is covered, thereby preventing the paint P from adhering to the friction area Rf. As an example, the dimensions of the covering surface 21B are 80 mm x 90 mm, but are not limited to this.

[0057] The protruding member 3B protrudes from the covered surface 21B in a direction perpendicular to the covered surface 21B, and has a male fitting portion 32 and a female fitting portion 33. The male fitting portion 32 and the female fitting portion 33 have the same configuration as in the above-described embodiment, and therefore detailed description thereof will be omitted.

[0058] Next, a method for using the curing jig 1B will be described. FIG. 13 shows the state in which the curing jig 1B is attached to a beam B and the beam B is being painted. As shown in FIG. 13, two curing members 10B are connected to each other via a connecting portion 4 and attached to one side and the other side of the friction region Rf of the web B3. Specifically, the protruding members 3 are inserted into the bolt holes B4, and the male fitting portions 32 and the female fitting portions 33 are fitted together. In this way, a set of four curing members 10B can cover the friction region Rf of beams B of various dimensions and cure the beams B.

[0059] <Third Modification> Next, a curing member 10C of a curing jig 1C according to a third modified example will be described. In the above-described embodiment, the curing jig 1 is described as being attached to both sides of the web B3, but this is not limiting. The curing jig 1C according to the third modified example is attached to either one side of the web B3.

[0060] FIG. 14 shows a perspective view of a protective member 10C according to a third modified example. 14, the curing member 10C has a covering body 2 and a protruding member 3C that protrudes from the covered surface 21 in a direction perpendicular to the covered surface 21. The curing jig 1C inserts the protruding member 3C into the bolt hole B4 from one side of the web B3 to engage with the bolt hole B4, and cures the beam B by covering the friction region Rf with the covered surface 21. The covering body 2 has the same configuration as in the above-described embodiment, and therefore the same reference numerals are used and the description thereof will be omitted.

[0061] The protruding member 3C has a first protruding member 3a located on the first side surface 23 side and a second protruding member 3b located on the second side surface 24 side. The first protruding member 3a and the second protruding member 3b have the same shape, dimensions and configuration, and therefore in the following description, unless there is a particular need to distinguish between them, they will be simply referred to as "protruding member 3C."

[0062] The protruding member 3C engages with the bolt hole B4 when inserted through the bolt hole B4. The protruding member 3C has a tapered surface 326C and an engagement claw 327C at a tip end 322C. When the protruding member 3C is inserted through the bolt hole B4, the tapered surface 326C abuts against the bolt hole B4, thereby deforming the tip end 322C of the protruding member 3C. After the tip end 322C passes through the bolt hole B4, the engagement claw 327C displaces outward from the bolt hole B4, thereby engaging the protruding member 3C with the bolt hole B4 (see FIG. 15). At this time, the covering surface 21 abuts against and covers the friction region Rf of the web B3.

[0063] FIG. 15 shows a state in which a curing jig 1C is attached to a beam B and the beam B is being painted. As shown in FIG. 15, the curing member 10C is attached to the beam B by inserting the engaging claws 327C into and engaging with the bolt holes B4. At this time, the friction region Rf is covered with the coating surface 21. In addition, paint P is sprayed onto the beam B from a spray nozzle N. As a result, the beam B is coated with the paint P, improving its environmental resistance and durability. Meanwhile, the friction region Rf of the joint is covered by the curing member 10C, so the paint P does not adhere to it. Therefore, when the gusset plate G is spliced ​​and fastened with the high-strength bolts S, it is possible to generate the required friction force between the web B3 and the gusset plate G.

[0064] In the above-described embodiment, the curing jig 1 has been described as being used to cure the joint of a beam B, but the present invention is not limited to this. The curing jig 1 can be used to cure the joint of a construction member having a joint through which a fastener is inserted. To give a specific example, as shown in FIG. 16 , the curing jig 1 can be used to cure the joint of a pair of gusset plates G1 and G2 that join a pair of beams Ba and Bb. In the above-described embodiment, the beam B is described as an H-shaped steel beam, but the present invention is not limited to this and the beam B may be a channel steel beam.

[0065] In the above-described embodiment, the male fitting portion 32 and the female fitting portion 33 are described as being columnar, but are not limited to this. The male fitting portion 32 and the female fitting portion 33 may have a frustum shape as long as they can be fitted together to connect the protruding members 3. In the above-described embodiment, the protruding members 3 are connected by fitting together fitting portions having male fitting portions 32 and female fitting portions 33, but this is not limiting. They may have engaging portions that can be engaged with each other as long as they can be inserted into the bolt holes B4 from both sides of the web B3 and connected to each other.

[0066] In the above-described embodiment, the opposing surface 22 is colored as a type marking that allows the type of the curing jig 1 to be identified, but the position and manner of the type marking are not limited to this. As long as the worker can easily identify the type of the curing jig 1, the entire curing jig 1 may be colored, or a letter indicating the type may be printed in a predetermined position. Furthermore, in the above-described embodiment, the type markings were described as being capable of distinguishing the type of the curing jig 1 in terms of its dimensions or shape, but it goes without saying that any markings can be attached to improve the identifiability and ease of handling of the curing jig 1. [Explanation of symbols]

[0067] 1, 1A, 1B, 1C Curing jig 10, 10a, 10b, 10A, 10B Curing material 2, 2A, 2B Covering (Planar covering) 21, 21B Covered surface 22 Opposite surface 23 First aspect 231 First vertical plane 232 First slope 24 Second aspect 241 Second vertical plane 242 Second slope 25 Third aspect 3, 3A, 3B, 3C protruding parts 3a First protruding member 3b Second protruding member 32, 32A male mating part 321 Proximal end 322, 322C tip 323 Plane side wall 324, 324A curved sidewall 325 Immersion Section 326C tapered surface 327C Engagement claw 33, 33A Female mating part 331 Proximal end 332 Tip 333 Plane side wall 334, 334A curved sidewall 335 Bottom wall 4 Connecting part 41 Connecting protrusion 42 Connecting recess B, Ba, Bb beams B1 Upper flange B2 bottom flange B3 Web B4 bolt hole G, G1, G2 gusset plates N spray nozzle P paint Rp Painting Area Rf friction area S high strength bolt

Claims

1. A curing jig used to cure a joint of a construction member having a joint through which a fastener is inserted, a pair of curing members for curing one surface of the joint and the other surface opposite to the one surface; Each of the curing members is a planar covering body having a covering surface that covers the one surface or the other surface of the joint; a protruding member that protrudes from the planar covering body in a direction perpendicular to the covering surface and is inserted into an insertion hole of the construction member through which the fastener can be inserted, the protruding members of the set of curing members are connected to each other when inserted into the insertion holes from the one surface and the other surface of the joint portion, A curing jig characterized in that the planar covering body of the set of curing members covers the one surface and the other surface across the joint when the protruding members are connected to each other.

2. the protruding member has a fitting recess and a fitting protrusion that can be fitted into the fitting recess, the fitting recess and the fitting protrusion are adjacent to each other and protrude from the covering surface, and are inserted into the same insertion hole; The curing jig according to claim 1, wherein the protruding members of the set of curing members are connected to each other by fitting the fitting recesses and the fitting protrusions of each.

3. The fitting recess has a side wall that forms a semicircular recess when viewed from the fitting direction, The fitting protrusion has a side wall that forms a semicircular protrusion when viewed from the fitting direction, The protective jig according to claim 2, characterized in that when the protruding member is inserted into the insertion hole, the circumferential portions of the side wall of the fitting recess and the side wall of the fitting protrusion extend along the outer periphery of the insertion hole.

4. the protruding member has a fitting recess having a circular shape when viewed from the fitting direction, and a fitting protrusion having a circular shape when viewed from the fitting direction and capable of fitting into the fitting recess, the fitting recess and the fitting protrusion protrude in opposite directions from the planar cover, The curing jig according to claim 1, wherein the protruding members of the set of curing members are connected to each other by fitting the fitting recesses and the fitting protrusions of each.

5. the planar covering body has the covering surface, an opposing surface facing the covering surface, and a side surface interposed between the covering surface and the opposing surface, The side surface is provided with a connecting portion that connects to other curing members that are arranged adjacent to each other in a direction perpendicular to the side surface, 2. The curing jig according to claim 1, wherein the connecting portion has a connecting recess and a connecting protrusion that can fit together.

6. the planar covering body has the covering surface, an opposing surface facing the covering surface, and a side surface interposed between the covering surface and the opposing surface, The curing jig according to claim 1, wherein the side surface has an inclined surface that is inclined with respect to the covering surface and the opposing surface.

7. The curing jig according to claim 6, characterized in that the side surface has a vertical surface that bends perpendicularly from the coating surface, and an inclined surface that extends from the vertical surface at an angle relative to the coating surface and the opposing surface.

8. 2. The curing jig according to claim 1, wherein the curing member is provided with a type indication that enables identification of the type of the curing jig.

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