JP4649196B2 - Mounting bracket for welding and fixing by high frequency induction heating method - Google Patents

Description

  The present invention relates to a resin-based plate material or resin in which a thermoplastic resin is used on at least one surface of a structure such as a concrete structure or a soil structure, etc. in civil engineering, waterproofing / water shielding construction and repair / reinforcement construction in construction work The present invention relates to a mounting bracket for mounting a system sheet by a high frequency induction heating method.

  In many cases, in order to impart water shielding and waterproofing properties using a thermoplastic resin-based plate material or resin-based sheet, the plate material or sheet is spread on the structure, and then the plate material or sheet is attached to the structure or A plate or the like for pressing on a soil structure with a large area is fixed with a pile, a pin or a concrete anchor bolt from above the plate or sheet, and the fixing part is the same as the sealing material or the plate or sheet as necessary. Bonding or welding the materials is a common construction method, and depending on the structure or earth structure, a sandbag or sand bag is placed, or the earth and sand are laid in layers on the top of the plate or sheet and fixed. .

  The plate or sheet is pressed against the structure or earth structure from above the plate or sheet that has been employed in many constructions, and the holding force of the plate or sheet against the structure or earth structure is further suppressed. In the method of driving and fixing to the structure or earth structure using piles, pins, concrete anchor bolts or the like in order to attach a fixing plate that increases the number of holes, a hole is inevitably formed in the plate or sheet by the driving. In order to compensate for the loss of strength, water resistance, water loss of the plate material or sheet perforated part caused by opening and opening holes, the same resin or the same material or adhesive as the plate material or sheet from the top of the hole, Need to repair with caulking material.

  In addition, the surface state of a structure constructed of concrete generally has unevenness even if it is said that it is finished smoothly, and in order to attach a hard resin board to the surface, Perforated and fixed to the structure with a metal fitting such as bolts through the hole, or a fitting member is disposed on the peripheral edge of the plate member, and the fitting member is installed on the structure with a metal fitting such as bolts. In general, the fixing method is performed while adjusting the gap interval between the structures.

  In addition, for waterproofing / water-proofing and repair / reinforcement of roofs of structures, etc., a resin layer containing a thermoplastic resin is required to attach a thermoplastic resin sheet or thermoplastic resin sheet to the construction target surface. A technique of applying a high-frequency induction heating method using a mounting bracket that combines a metal plate and a metal plate is well known as seen in the following patent documents.

Japanese Patent No. 2971149 Japanese Patent Publication No.58-36705 Japanese Patent Laid-Open No. 10-77722 Japanese Patent Laid-Open No. 2003-313995

  Many of these types of mounting brackets are coated with hot melt resin or adhesive on the surface of a metal plate and fixed using a high frequency induction heating method, hot air welding method, hot metal welding method, or adhesive, or adhesive tape The metal plate and the thermoplastic resin plate material or thermoplastic resin sheet are welded and fixed.

  However, in the fixing by the drilling method described in [0002], the hole is drilled in the plate, the head of the bolts to be attached pops out, the smoothness of the plate material surface is obstructed, and there is a chronic risk of occurrence of a blocking problem. In the case of using a fitting member, if the required fixing strength of the plate material is high, a large number of small-area plate materials must be attached, workability is remarkably deteriorated, and economically Significant costs are required.

  In addition, even when trying to fix the thermoplastic resin plate using the high-frequency induction heating method described in [0005], the welding surface of the mounting bracket installed on the surface of the concrete structure where it is impossible to eliminate the uneven state However, since a plurality of mounting brackets do not line up on the same plane due to the influence of unevenness, reliable welding is not possible even if a hard thermoplastic resin board is mounted on a concrete structure by the above method. .

  Further, in the fixing method described in [0005] and [0007], since the bond between the metal plate and the hot melt resin or the adhesive is a chemical bond, the inside of the coated hot melt resin or the adhesive layer contains water vapor molecules and oxygen molecules. A thermoplastic resin plate material that is diffused and permeated to reach the interface between the metal plate and the hot melt resin or adhesive, or at the same time undergoes a thermal history, causing the metal plate to oxidize or deteriorate, There is a risk that the thermoplastic resin sheet will peel off, and it is not reliable.

  In order to solve such problems, Patent Document 4 discloses that a plurality of through holes are formed in a metal base material, and the through holes are filled with a thermoplastic resin, and the outer surface of the base material is thermoplastic. There has been proposed a mounting bracket that is covered with a resin coating layer and is connected by a thermoplastic resin connection portion in which the through-holes are filled with the coating layer on the front surface side and the back surface side.

  According to this proposal, a gas component such as water vapor molecules and oxygen molecules diffuses and penetrates into the hot melt resin or adhesive layer and reaches the metal surface, which is caused by oxidation and deterioration of the metal surface. The problem of “peeling of the resin-based plate material or thermoplastic resin-based sheet” is solved.

  In the joining work by the high-frequency induction heating method described in Patent Documents 2, 3, and 4, the metal plate of the mounting bracket continues to generate heat and rise in temperature in a short time, and the thermoplastic resin in contact with the metal plate is released from the metal plate contact interface. After the temperature rises, heat is conducted through the thermoplastic resin layer, and after reaching the temperature at which the welding surface of the mounting bracket and the welding surface of the thermoplastic resin sheet in contact with the welding surface can be welded, the mounting bracket welding surface And the welded surface of the thermoplastic resin sheet are fused and integrated.

  However, in a mounting bracket in which a thermoplastic resin having a large specific heat and a low thermal conductivity is laminated on a metal plate having a small specific heat and a high thermal conductivity, when a magnetic field is applied by a high frequency induction heating method, the metal plate is caused by a so-called skin effect. Since the surface of the resin layer that is laminated on the mounting bracket is in contact with the metal plate, the resin is instantaneously heated to raise the temperature in order to instantaneously generate heat and temperature from the surface. The time required for the resin at the welding interface of the thermoplastic resin of the resin-based plate material or resin-based sheet to reach the weldable temperature is in contact with the metal plate due to the large specific heat and low thermal conductivity of the thermoplastic resin. Because the surface thermoplastic resin temperature rise time is long, the surface of the thermoplastic resin in contact with the metal plate is exposed to excessive heating due to the heat of the metal plate that continues to rise in temperature. Umate increases.

  Further, when the thickness of the object to be welded is large, if the thickness of the thermoplastic resin layer disposed on the welding surface of the mounting bracket is thick, the welding surface of the object to be welded is brought to a temperature at which welding can be performed by high-frequency current conduction. Until reaching the metal layer, the metal part of the metal fitting generates heat instantaneously, and is exposed to excessive heating to raise the temperature in a short time, and there is a risk of easily deteriorating and deteriorating. is there.

  In the case where the thickness of the synthetic resin covering the metal plate of the mounting bracket described in Patent Document 4 is 1-2 mm, the welding surface of the object to be welded can be welded by performing a welding operation by a high frequency induction heating method. By the time the temperature reaches the temperature, the interface between the metal plate of the synthetic resin coated on the metal plate of the mounting bracket is instantaneously raised by the heat generated by the eddy current induced in the metal plate by the high frequency current, Deterioration such as scorching and alteration of the synthetic resin at the interface frequently occurs, and it is very difficult to perform stable welding work.

  Further, in the mounting bracket described in Patent Document 4, the tensile force that the waterproof sheet described in Patent Document 4 receives from the outside is a plurality of penetrations formed in a metal base material disposed on the back surface of the mounting bracket. Since it is received by the cross section of the resin immediately above the periphery of the hole, it depends on the specific strength and thickness of the resin used on the back surface, and the total area of the hole in the welding surface of the mounting bracket.

  Furthermore, the mounting brackets used so far for the high-frequency induction heating method have little consideration for unevenness of the installed concrete structure surface. Since the surface of the actually constructed or existing structure is not smooth and uneven, the welding surface of the mounting bracket installed on the structure does not form the same surface at a certain distance from the structure, When fixing a rigid resin board that uses plastic resin on at least one surface with a mounting bracket, the welding surface of the mounting bracket does not come into full contact with the surface of the resin board, or many mountings are installed on the structure surface. In some cases, a gap may be generated between the metal fitting and the resin-based plate material.

  In addition, the tensile force applied to the attached resin-based plate material or resin-based sheet is the heat placed on the opposite surface of the mounting bracket through the thermoplastic resin filled in the hole drilled in the mounting bracket. Although it is transmitted to the plastic resin layer, the holding force is determined by the specific strength and resin thickness of the resin of the thermoplastic resin layer and the total area of the holes in the welding surface of the mounting bracket. Therefore, a high holding force cannot be expected unless the resin thickness is increased and the total area of the holes in the welding surface of the mounting bracket is increased.

  However, when the thickness of the object to be welded is large, if the thickness of the thermoplastic resin layer disposed on the welding surface of the mounting bracket is large, it is long until the welding surface of the object to be welded reaches a temperature at which welding is possible. Since time is required, the thermoplastic resin in contact with the metal plate of the mounting bracket receives excessive heat and easily burns, causing deterioration such as deterioration.

  Moreover, what is necessary is just to enlarge the aperture ratio of the hole drilled in a mounting bracket in order to increase the total area of the hole which occupies for the welding surface of a mounting bracket. The easiest way to increase the aperture ratio is to increase the area of each hole and make the hole shape rectangular, but when the area increases, energize the high-frequency current to heat the fittings. However, it takes a long time to raise the temperature of the resin in the center of the hole, and the thermoplastic resin in contact with the metal plate is excessively overheated until the resin in the center melts, which may cause deterioration such as scorching or deterioration. .

  The present invention intends to solve such problems as described below.

  The present invention provides the following means for solving the above problems.

The present invention is a mounting bracket for welding and fixing a resin-based plate material or resin-based sheet using a thermoplastic resin on at least one surface by a high-frequency induction heating method, and the bracket is a conductive material having a plurality of small holes . A resin layer containing the same resin as the thermoplastic resin is disposed on at least one surface of the metal plate without being adhered , and the same resin as that of the resin layer is electrically conductive. filled in the entire space of the pores of sexual metal plate, and a resin filled in the pores of the resin layer and the conductive metal plates are those that together, further wherein the resin plate or the resin sheet An attachment fitting for welding and fixing by a high frequency induction heating method is provided, wherein a mesh-like conductor that generates heat by a high frequency induction heating method is disposed on the outermost surface of the surface to be welded and fixed.

Furthermore, the present invention is a mounting bracket for welding and fixing a resin-based plate material or resin-based sheet using a thermoplastic resin on at least one surface by a high-frequency induction heating method, and the bracket has a plurality of small holes. A resin containing the same resin as the above thermoplastic resin on at least one surface of the conductive metal plate , and a resin layer formed by laminating a fiber layer is disposed without bonding , and is the same resin as the resin of the resin layer There is filled in the entire space of the pores of the conductive metal plate, and a resin filled in the pores of the resin layer and the conductive metal plates are those that together, further wherein the resin plate or resin A mesh-like conductor having a thickness of 0.05 to 1.0 mm and an aperture ratio of 25 to 90% and generating heat by a high frequency induction heating method is arranged on the outermost surface of the surface to be welded and fixed to the system sheet. And the concrete formed on the bracket Over preparative distance between anchor bolts or concrete anchor pin recess bottom surface and the high-frequency induction heating welding surface is greater than the distance between the peripheral flange lower surface and a high-frequency induction heating welding surface of the mounting bracket, and the structure when attached to the structure Provided is a mounting bracket for welding and fixing by a high frequency induction heating method, wherein a gap is formed between the lower surface of the flange .

  The mesh-like conductor that generates heat by the high-frequency induction heating method of the present invention is a perforated foil-like material in which a fine metal wire is produced using a loom or a knitting machine, or a metal foil is formed into a net-like appearance using a punch or press. However, it is also possible to form a conductive organic material, a conductive inorganic material, or an organic material coated with a conductor into a thin wire shape or a foil shape, and use the processing method described above.

  The mesh conductor arranged in the mounting bracket of the present invention may be fixed to the welding surface of the sheet material, or may be separated from the sheet material.

  A fiber layer is preferably laminated on the resin layer containing the thermoplastic resin arranged in the mounting bracket of the present invention, and the form of the fiber layer is any of woven fabric, knitted fabric, laminated fabric, nonwoven fabric, and fiber chip. However, a mesh-like woven fabric or laminated fabric is particularly suitable, and the position of the fiber layer disposed in the resin layer containing the thermoplastic resin may be any position in the resin layer.

  Furthermore, it is preferable that a spring-like material or a rubber-like material is disposed on the bottom surface of the concrete anchor bolt or the concrete anchor pin recess formed on the mounting bracket.

In Claim 1 thru | or 3 , this attachment metal fitting is the same as the thermoplastic resin used for the resin-type board | plate material or resin-type sheet | seat which used the thermoplastic resin which is going to attach to a structure or a earth structure at least on one surface. A thermoplastic resin surface, which is a welding surface of the metal fitting, is disposed without being bonded to one or both surfaces of a metal plate having a plurality of small holes, the resin layer containing a resin and having a fiber layer laminated thereon The mesh-shaped conductor that generates heat by the high-frequency induction heating method is provided with the following effects.

  In the present invention, the metal plate and the resin layer containing the thermoplastic resin are not actively bonded.

In order to avoid this, there is a risk that the attached mounting bracket is subject to the deterioration and deterioration described in [0010] over time, and the initial performance and the performance after long-term use may change. If it is bonded, it must be received only by the metal part where the tensile force is applied to the metal plate from the outside, but since it is not bonded, it can be applied not only to the part where the tensile force is applied but also to a wide range of resin layers. Since the fiber layer is laminated on the resin layer that can be dispersed and contains the thermoplastic resin, the resin layer is reinforced by the fiber layer, so that the force can be further dispersed in a wide range and less force per unit area is received. can do.

  A welded surface on which a resin-based plate material or resin-based sheet using a thermoplastic resin to be attached to a structure or earth structure on at least one surface and a mesh-like conductor that generates heat by high-frequency induction heating of the metal fitting is disposed. When a high-frequency current is applied to the applicator of the resin-based plate material or resin-based sheet high-frequency induction heating machine, the mesh conductor disposed on the welding surface of the metal fitting and the metal plate of the metal fitting generate heat instantaneously. Start. As a result, the resin at the interface melts and welds due to the heat generation of the mesh-like conductor existing at the interface between the resin layer disposed on the metal fitting and the resin-based plate material or resin-based sheet to be welded. To do. In the above-described welding process, the heat generation of the metal plate of the metal fitting has an effect of increasing the temperature rise rate of the resin on the welding surface side and shortening the arrival time to the welding possible temperature. As a result, the resin layer placed on the metal fitting, which is generated when there is no conductor, prevents deterioration of the resin existing at the metal plate interface caused by the rapid heating of the metal plate, such as scorching and alteration. Is possible.

  The small holes perforated in the metal plate diffuse gas components such as water vapor molecules and oxygen molecules in the hot melt resin layer or adhesive layer, which is coated over time with a metal plate coated with hot melt resin or adhesive. Penetration reaches the interface between the metal plate and the hot melt resin or adhesive, or at the same time, the metal plate is oxidized or deteriorated due to thermal history, and the resin plate or resin sheet bonded to the mounting bracket causes peeling. Unlike the danger, the metal fitting and the resin-based plate material or resin-based sheet do not peel off over a long period of time.

  When the target is a soil structure, the mounting bracket of the present invention is installed on a rigid body such as a top of a pile, a surface of a mounting member, a ceiling plate of a partition plate, and the like. It is possible to lay the resin-based plate material or resin-based sheet without making a hole.

The metal fittings of the present invention according to claim 2 and claim 3 , wherein the distance between the lower surface of the concrete anchor bolt or the concave portion for the concrete anchor pin formed on the metal fitting and the high frequency induction heating welding surface is the lower surface of the peripheral flange of the metal fitting. When the metal fitting is installed in the structure, there is a gap between the flange bottom surface and the structure, so there is unevenness in the attachment location of the structure, and the structure is installed when the metal fitting is installed. Even if the surface of the object and the metal fitting are not parallel, when the metal plate or resin sheet on the metal fitting is pressed, the concrete anchor bolt or the concrete anchor pin recess formed on the metal fitting The metal fitting moves around the tip of the lower surface, and the welding surface of the metal fitting is brought into close contact with the entire welding surface of the resin-based plate material or resin-based sheet. Door can be.

  Moreover, since the thickness opening ratio of the said conductive mesh-like thing was specified, it has the following effect.

  Since the conductive mesh material that generates heat by the high frequency induction heating method is sandwiched at the interface between the metal fitting and the object to be welded, the resin of the metal fitting and the object to be welded is melted by the high frequency induction heating, resulting in the thickness of the conductive mesh material. It is necessary to press the resin extruded from both sides of the conductive mesh-like material while filling the voids. Also, the melt viscosity of various resins is inherently large and small, and it is necessary to match the thickness of the conductive mesh material with the resin used. It is preferable that the thickness of the conductive mesh material is thin. However, if the conductive mesh material is too thin, the heat capacity of the conductive mesh material is small, so that the heat capacity is small. It becomes difficult. For this reason, it regulates by specifying the thickness of the conductive mesh.

  If the opening area of each hole to be opened in the metal plate is large, the resin in the center of the hole and the covering relative to its position are due to the characteristics of high specific heat and low thermal conductivity, which are general properties of the resin. Since the temperature rise time of the resin on the surface of the welded material is longer than the temperature rise time of the resin in contact with the metal plate, there is an extremely high risk that the resin in contact with the metal plate will deteriorate due to excessive heat. . For this reason, the mesh conductor is disposed at the interface between the metal resin and the object to be welded, and a high-frequency current is passed through a high-frequency induction heater to heat the conductor and heat the interface resin instantaneously. However, if the mesh opening area of the mesh-like conductor is large, the above-described obstacle occurs when the opening area of each hole of the metal plate is large. For this reason, it regulates by specifying the aperture ratio of the conductive mesh.

In Claim 3 , since the spring-like thing or rubber-like thing is arrange | positioned at the concrete anchor bolt or concrete anchor pin recessed lower surface formed in the attachment metal fitting, it has the following effects further.

  If the welded surfaces of multiple mounting brackets installed in a concrete structure are not aligned on the same surface due to unevenness of the structure, it is further necessary to place the concrete anchor bolt or concrete anchor pin recess bottom formed on the bracket. By arranging a spring-like object or rubber-like object and pressing any of the resin-based plate material or resin-based sheet on the mounting bracket, the welding surface of the mounting bracket can be aligned on the same plane. Therefore, when the welding surfaces of all the mounting brackets are subjected to high-frequency induction heating, heat generated by eddy currents generated in the mesh-like conductor and metal plate of the brackets, the welding surfaces of the brackets, and the resin-based plate material or resin-based The welding surface of the sheet is welded. By carrying out this welding operation on all the mounting brackets installed, the resin-based plate material or resin-based sheet can be integrated with all the mounting brackets.

  Further, when the diameter of the hole of the metal plate of the mounting bracket is increased, the resin cross section immediately above the periphery of the through hole connected through the metal plate when receiving a tensile force by the attached resin-based plate material or resin-based sheet Therefore, the resin layer needs a large thickness, but if the connected resin layer is reinforced with the fiber layer, the tensile force is widely dispersed through the fiber layer, so the strength of the resin layer is overwhelming. Allows retention.

  Next, the best mode for carrying out the present invention will be described with reference to the drawings.

  FIG. 1 is a plan view showing a planar circular mounting bracket for welding and fixing a resin-based plate material or resin-based sheet using the thermoplastic resin according to the present invention on at least one surface by a high frequency induction heating method, FIG. It is AA sectional drawing of FIG.

  2 includes a metal plate 1 in which a plurality of small holes 1a are perforated through the front and back and a resin layer 2a containing a thermoplastic resin. The metal plate 1 and the resin layer 2a are heated. The entire space of the small hole 1a perforated in the metal plate 1 is filled with a part 2c of the resin layer 2a by a pressure press, and the resin is swelled above the small hole 1a. Further, a mesh-like conductor 9 that generates heat by a high-frequency induction heating method is disposed on the upper surface thereof.

  The mounting bracket 10 has an upper surface as a welding surface 3 on which the resin-based plate material or resin-based sheet is welded, several concrete anchor bolts or concrete anchor pin recesses 4 in the central longitudinal direction, and flanges 6 on both longitudinal sides. . Reference numeral 5 denotes a concrete anchor bolt or a concrete anchor pin hole. The distance between the lower surface 7 of the concrete anchor bolt or concrete anchor pin recess 4 and the welding surface 3 is larger than the distance between the flange lower surface 6a.

  4 is a cross-sectional view taken along the line BB of FIG. 3 showing another flat circular mounting bracket for welding and fixing the resin-based plate material or resin-based sheet according to the present invention by a high-frequency induction heating method.

  In FIG. 4, a mounting bracket 10 includes a metal plate 1 in which a plurality of small holes are perforated through the front and back, a resin layer 2a containing a thermoplastic resin, and a resin layer 2b. The metal plate 1 and the resin layer 2a And the resin layer 2b are made of the same resin, and the resin layer 2a and the resin layer 2b are formed of the small holes 1a drilled in the metal plate 1 by the primary hot press and the secondary hot press, respectively. The entire space is filled with a part 2c of the resin layer 2a and formed integrally, and a mesh-like conductor 9 that generates heat by a high frequency induction heating method is disposed on the upper surface of the resin layer 2b.

  This mounting bracket 11 has an upper surface as a welding surface 3 on which the resin-based plate material or resin-based sheet is welded, several concrete anchor bolts or concrete anchor pin recesses 4 in the central longitudinal direction, and flanges 6 on both longitudinal sides. . Reference numeral 5 denotes a concrete anchor bolt or a concrete anchor pin hole. The distance between the lower surface 7 of the concrete anchor bolt or concrete anchor pin recess 4 and the welding surface 3 is larger than the distance between the flange lower surface 6a.

  FIG. 5 is another flat circular mounting bracket of FIG. 1 having the same top appearance as FIG. 1 for welding and fixing the resin-based plate material or resin-based sheet according to the present invention by high-frequency induction heating. It is -A sectional drawing.

  5 includes a metal plate 1 in which a plurality of small holes 1a are perforated through the front and back and a resin layer 2a containing a thermoplastic resin and laminated with a fiber layer 8a. The resin layer 2a is filled with a part 2c of the resin layer 2a in the entire space of the small hole 1a drilled in the metal plate 1 by a heat and pressure press, and the fiber layer 8a is opposite to the welding surface of the mounting bracket. It is laminated as a reinforcing layer in the layer of the resin layer 2a disposed on the surface, and is integrally formed so that the resin swells above the small holes 1a. A mesh-like conductor 9 that generates heat is disposed.

  6 is a cross-sectional view taken along line BB of another flat circular mounting bracket having the same top appearance as FIG. 3 for welding and fixing the resin-based plate material or resin-based sheet according to the present invention by high-frequency induction heating. FIG.

  In FIG. 6, the mounting bracket 10 includes a metal plate 1 in which a plurality of small holes are perforated through the front and back, a resin layer 2a containing a thermoplastic resin and having a fiber layer 8a laminated thereon, and a resin having no fiber layer. The resin layer 2a and the resin layer 2b are respectively formed in the entire space of the small holes 1a drilled in the metal plate 1 by the primary hot press and the secondary hot press. The fiber layer 8a is integrally formed by being laminated as a reinforcing layer in the layer of the resin layer 2a disposed on the surface opposite to the welding surface of the mounting bracket. A mesh-like conductor 9 that generates heat by high-frequency induction heating is disposed on the upper surface of the layer 2b.

  The mounting bracket 10 has an upper surface as a welding surface 3 on which the resin-based plate material or resin-based sheet is welded, several concrete anchor bolts or concrete anchor pin recesses 4 in the central longitudinal direction, and flanges 6 on both longitudinal sides. . Reference numeral 5 denotes a concrete anchor bolt or a concrete anchor pin hole. The distance between the lower surface 7 of the concrete anchor bolt or concrete anchor pin recess 4 and the welding surface 3 is larger than the distance between the flange lower surface 6a.

  7 is a cross-sectional view taken along line BB of another flat circular mounting bracket having the same top appearance as FIG. 3 for welding and fixing the resin-based plate material or resin-based sheet according to the present invention by high-frequency induction heating. FIG.

  In FIG. 7, the mounting bracket 10 includes a metal plate 1 having a plurality of small holes penetrating through the front and back, a resin layer 2a containing a thermoplastic resin and a fiber layer 8a, and a fiber layer 8b. The resin layer 2b and the resin layer 2b are formed in the entire space of the small holes 1a drilled in the metal plate 1 by the primary hot press and the secondary hot press, respectively. A portion 2c of the layer 2a is filled and molded integrally, the fiber layer 8a is in the layer of the resin layer 2a disposed on the surface opposite to the welding surface of the mounting bracket, and the fiber layer 8b is on the welding surface of the mounting bracket. In the layer of the resin layer 2b to be disposed, a reinforcing layer is laminated and integrated, and the mesh conductor 9 that generates heat by the high frequency induction heating method is disposed on the upper surface of the resin layer 2b.

  This mounting bracket 11 has an upper surface as a welding surface 3 on which the resin-based plate material or resin-based sheet is welded, several concrete anchor bolts or concrete anchor pin recesses 4 in the central longitudinal direction, and flanges 6 on both longitudinal sides. . Reference numeral 5 denotes a concrete anchor bolt or a concrete anchor pin hole. The distance between the lower surface 7 of the concrete anchor bolt or concrete anchor pin recess 4 and the welding surface 3 is larger than the distance between the flange lower surface 6a.

  Next, still another embodiment will be described.

  FIG. 9 is a cross-sectional view taken along the line C-C in FIG. 8 of another flat rectangular mounting bracket for welding and fixing the resin-based plate material or resin-based sheet according to the present invention by high-frequency induction heating.

  In the CC cross-sectional view, the display of the metal plate, the resin layer, the fiber layer, and the mesh-like conductor that generates heat by the high frequency induction heating method is the same as in FIGS. 2, 4, 5, 6, and 7, and is omitted. .

  This mounting bracket 11 has a rectangular shape, and has an upper surface as a welding surface 3 for welding the resin-based plate material or resin-based sheet, and several concrete anchor bolts or concrete anchor pin recesses 4 in the central longitudinal direction. Both sides are flanges 6. Reference numeral 5 denotes a concrete anchor bolt or a concrete anchor pin hole. The distance between the lower surface 7 of the concrete anchor bolt or concrete anchor pin recess 4 and the welding surface 3 is larger than the distance between the flange lower surface 6a.

  The planar shape and cross-sectional shape of the mounting bracket according to the present invention are not limited to the above, and the planar shape and other planar shapes shown in FIGS. 13 to 15, and the sectional shape and other sectional shapes shown in FIGS. Of course, these plane shapes and cross-sectional shapes may be combined.

  The display of these metal plates, resin layers, fiber layers, and mesh conductors is the same as in FIGS. 2, 3, 4, 5, 6, and 7, and is omitted.

  10 is a cross-sectional view of FIG. 1, FIG. 3, or FIG. 8 showing another flat circular or rectangular mounting bracket for welding and fixing the resin-based plate material or resin-based sheet according to the present invention by high-frequency induction heating method. FIG. In the figure, the display of the metal plate, the resin layer, and the fiber layer is omitted.

  In all the above-described mounting brackets, the spring-like object 14 is disposed and fixed on the lower surface of the concrete anchor bolt or the concrete anchor pin recess formed in the mounting bracket. By arranging the spring-like object 14, the surface of the structure and the mounting bracket can be easily positioned on the same plane using elasticity even if the mounting position of the mounting bracket structure is uneven. it can.

  FIG. 11 is a cross-sectional view of FIG. 1, FIG. 3, or FIG. 8 showing another flat circular or rectangular mounting bracket for welding and fixing the resin-based plate material or resin-based sheet according to the present invention by high-frequency induction heating method. FIG. In the figure, the display of the metal plate, the resin layer, the fiber layer, and the mesh conductor that generates heat by the high frequency induction heating method is omitted.

  In all the above-described mounting brackets, the rubber-like object 15 is disposed and fixed on the lower surface of the concrete anchor bolt or the concrete anchor pin recess formed on the mounting bracket. By arranging the rubber-like object 15, the surface of the structure and the mounting bracket can be easily located on the same plane using elasticity even if there is unevenness in the mounting position of the mounting bracket structure. it can.

  The spring-like material 14 and the rubber-like material 15 shown in Examples 7 and 8 can be added to any of the metal fittings of Examples 1, 2, 3, 4, 5, and 6. Of course, it can be added to the metal fitting according to the planar shape, the cross-sectional shape, and the combination described in [0063].

The conditions of the heat pressure pressing in the above embodiment, varies depending on the material of interest, schematic 50 ° C. to 250 DEG ° C., to 3 minutes 1 minute, is ^{50kg / cm 2 ~100kg / cm 2} . The arrangement of the mesh-like conductor that generates heat by the high-frequency induction heating method may be performed, for example, by attaching a double-sided adhesive tape to the mesh-like conductor, or by a hot press.

  In this manner, a mounting bracket for welding and fixing the resin-based plate material or the resin-based sheet to the structure as a whole by high-frequency induction heating is configured.

  Next, a form to be installed on the earth structure is further illustrated and described.

  FIG. 22 is a cross-sectional view in which mounting brackets are disposed on the top of the pile after the pile 18 is placed on the earth structure 17.

  FIG. 23 is a cross-sectional view in which the slope stabilization plate 19 is fixed to the earth structure 17 with the ground anchor 20 and mounting brackets are arranged on the plate.

  FIG. 24 is a front view of the direction of the slope in which the mounting brackets are arranged after the piles 18 are placed on the earth structure 17 and then the rectangular brackets 22 are attached to the tops of the piles.

  FIG. 25 shows a structure in which a pile 18 is placed on the earth structure 17 or a slope stabilizing plate is attached, and then a cross metal fitting 23 is attached to the top of the pile 18 or the plate. It is the front view which looked at the direction of a slope.

  FIG. 26 is a front view in which the rectangular metal fittings 22 are attached and arranged in a lattice shape on the surface of the earth structure, and the direction of the slope where the attachment metal fittings are arranged is viewed.

  The mounting bracket arrangement method illustrated in FIGS. 21, 22, 23, 24, and 25 may be applied to a hard structure such as concrete.

  The metal plate used in the present invention is not particularly limited as long as it has conductivity, and examples thereof include iron, stainless steel, aluminum, copper, and other alloys, and stainless steel SUS430 is particularly preferable.

  Examples of the thermoplastic resin used in the present invention include polyethylene resin, chlorinated polyethylene resin, polypropylene resin, polyester resin, vinyl chloride resin, nylon resin, fluororesin, silicone resin, ethylene-vinyl acetate polymer resin, ethylene-vinyl. Alcohol copolymer resin, polycarbonate resin, acrylic resin, urethane resin, vinyl chloride resin / ethylene-vinyl acetate-carbon monoxide triple copolymer resin mixture, ionomer resin or ethylene-propylene rubber, fluoro rubber, urethane rubber, etc. One or more materials or rubber materials. In particular, fluororesins are used in applications that require ultra-long weather resistance, and polyethylene resins are preferable in applications that require non-toxicity and hygiene.

  The mesh conductor that generates heat by the high-frequency induction heating method used in the present invention is made of various alloys such as iron, aluminum, copper, stainless steel, tungsten, conductive ferrite, conductive organic matter, and brass, foil, They are fine wires, metal-coated synthetic resins, metal-coated organic fibers, and the like.

  The fibers used in the present invention are, for example, aramid fibers, polyarylate fibers, polyvinyl alcohol fibers, polyester fibers and polyamide fibers, synthetic fibers such as glass fibers, mineral fibers such as glass fibers, and metal fibers such as stainless fibers.

  The mounting bracket for welding and fixing the resin-based plate material or resin-based sheet to the structure or earth structure according to the present invention by the high-frequency induction heating method is used as described above because it is configured as described above. The

  FIG. 12 is a cross-sectional view showing a state in which the attachment fitting is attached to the wall surface of the concrete structure. In the figure, the display of each layer of a metal plate, a resin layer, a fiber layer, and a conductor is omitted.

  First, the mounting bracket 10 is attached to the surface of the concrete structure 12 so as to be parallel to the surface of the structure 12 using concrete anchor bolts or concrete anchor pins 13. After attaching the mounting bracket 10 to the surface of the structure 12, high-frequency induction heating is performed by placing the resin-based plate material 16 or the resin-based sheet along the welding surface of the mounting bracket 10.

  As the resin-based plate material or resin-based sheet, a thermosetting resin having a thermoplastic resin layer provided on one side, a material having a thermoplastic resin on both sides or a thermoplastic resin on the whole are appropriately selected and used.

  When the mounting bracket 10 or 11 is mounted on the surface of the structure 12, and the resin plate 16 is attached to the welding surface of the mounting bracket 10 or 11, when an electric current is passed, lines of magnetic force are generated from the induction current coil. Magnetic field lines pass through the resin plate 16 or the resin sheet and reach the metal plate of the mesh conductor 9 and the mounting bracket 10 or 11 that generate heat by the high frequency induction heating method. Eddy currents are generated inside the mesh conductor 9 and the mounting bracket 10 or 11 that generate heat by the high frequency induction heating method, and generate heat. The temperature of the welding surface of the resin-based plate material or resin-based sheet in contact with the mesh-shaped conductor 9 and the mounting bracket is raised at the same time, and after reaching the weldable temperature, both are fused and integrated. In the above-described welding integration process, the heat generation of the metal plate of the metal fitting has an effect of increasing the temperature rise rate of the resin on the welding surface side and shortening the arrival time to the welding possible temperature. After the integration, energization is stopped and cooling is performed.

A flat circular mounting bracket for welding and fixing the resin-based plate material or resin-based sheet according to the present invention by a high-frequency induction heating method, without a resin layer on the upper surface of the bracket, and further generating heat by a high-frequency induction heating method on the upper surface. It is a top view of the metal fitting by which the mesh-shaped conductor is arrange | positioned. It is AA sectional drawing of FIG. Another flat circular mounting bracket for welding and fixing the resin-based plate material or resin-based sheet according to the present invention by a high-frequency induction heating method, having a resin layer on the upper surface of the bracket, and further, a high-frequency induction heating method on the upper surface It is a top view of the metal fitting by which the mesh-like conductor which generate | occur | produces heat is arrange | positioned. It is BB sectional drawing of FIG. Another flat circular mounting bracket for welding and fixing the resin-based plate material or resin-based sheet according to the present invention by a high-frequency induction heating method, without a resin layer on the upper surface of the bracket, and further by a high-frequency induction heating method on the upper surface It is sectional drawing of the metal fitting which has the resin layer in which the mesh-like conductor which generate | occur | produces heat | fever is arrange | positioned and the fiber layer was laminated | stacked on the opposite surface through the metal plate. Another flat circular mounting bracket for welding and fixing the resin-based plate material or resin-based sheet according to the present invention by a high-frequency induction heating method, having a resin layer on the upper surface of the bracket, and further, a high-frequency induction heating method on the upper surface 2 is a cross-sectional view of a metal fitting having a resin layer in which a mesh-like conductor that generates heat is disposed and a fiber layer is laminated on the opposite surface through a metal plate. Another flat circular mounting bracket for welding and fixing the resin-based plate material or resin-based sheet according to the present invention by a high-frequency induction heating method, having a resin layer in which fiber layers are laminated on the upper surface and the lower surface of the bracket FIG. 5 is a cross-sectional view of a metal fitting in which a mesh-like conductor that generates heat by high-frequency induction heating is disposed on the upper surface of the upper surface resin layer. It is a top view of the flat rectangular attachment metal fitting for welding and fixing the said resin-type board | plate material or resin-type sheet | seat based on this invention by a high frequency induction heating method. It is CC sectional drawing of FIG. It is sectional drawing which shows another plane circular attachment metal fitting which attached the spring-like thing to the bottom surface for welding and fixing the said resin-type board | plate material or resin-type sheet | seat based on this invention by a high frequency induction heating method. It is sectional drawing which shows another plane circular attachment metal fitting which attached the rubber-like thing to the bottom surface for welding and fixing the said resin-type board | plate material or resin-type sheet | seat based on this invention by a high frequency induction heating method. It is sectional drawing which shows the state which attached the attachment metal fitting to the wall surface of a concrete structure. It is a top view which shows another Example of the attachment metal fitting for welding and fixing the said resin-type board | plate material or resin-type sheet | seat based on this invention by a high frequency induction heating method. It is the top view and rectangular EE sectional drawing of the rectangular mounting bracket which show the rectangular shape for welding and fixing the said resin-type board | plate material or resin-type sheet | seat which concerns on this invention by a high frequency induction heating method. It is a top view which shows another Example of the attachment metal fitting for welding and fixing the said resin-type board | plate material or resin-type sheet | seat based on this invention by a high frequency induction heating method. It is sectional drawing of the attachment metal fitting for welding and fixing the said resin-type board | plate material or resin-type sheet | seat based on this invention by a high frequency induction heating method. It is sectional drawing of the attachment metal fitting for welding and fixing the said resin-type board | plate material or resin-type sheet | seat based on this invention by a high frequency induction heating method. It is sectional drawing of the attachment metal fitting for welding and fixing the said resin-type board | plate material or resin-type sheet | seat based on this invention by a high frequency induction heating method. It is sectional drawing of the attachment metal fitting for welding and fixing the said resin-type board | plate material or resin-type sheet | seat based on this invention by a high frequency induction heating method. It is sectional drawing of the attachment metal fitting for welding and fixing the said resin-type board | plate material or resin-type sheet | seat based on this invention by a high frequency induction heating method. It is sectional drawing of the attachment metal fitting for welding and fixing the said resin-type board | plate material or resin-type sheet | seat based on this invention by a high frequency induction heating method. It is the example of attachment of the metal fitting using the pile 18 piled up to the earth structure 17. . It is an example of attachment of the metal fitting using the plate 19 for stabilizing the slope of the earth structure installed by the ground anchor 20 to the earth structure 17. It is the front view which looked at the direction of the slope in which the rectangular bracket 22 was attached and arrange | positioned to the top part of the pile 18, after placing the pile 18 in the earth structure 17, and the attachment bracket was arrange | positioned. After placing the pile 18 on the earth structure 17 or attaching the slope stabilizing plate 19, the cross metal fitting 23 is attached and arranged on the top of the pile 18 or the plate. It is the front view which looked at the direction. It is the front view which looked at the direction of the slope which attached and arrange | positioned the rectangular metal fitting 22 on the surface of the earth structure in the shape of a grid | lattice.

DESCRIPTION OF SYMBOLS 1 Metal plate 1a Small hole 2a Resin layer containing thermoplastic resin 2b Resin layer containing thermoplastic resin 2c Part of resin layer 3 Welding surface 4 Recess for concrete anchor bolt or concrete anchor pin 5 Concrete anchor bolt or concrete anchor Pin hole 6 Flange 6a Flange bottom surface 7 Concrete anchor bolt or concrete anchor pin recess bottom surface 8a Fiber layer 8b Fiber layer 9 Mesh conductor that generates heat by high frequency induction heating method 10 Flat circular mounting bracket 11 Flat rectangular mounting bracket 12 Concrete structure Material 13 Concrete anchor bolt or concrete anchor pin 14 Spring-like material 15 Rubber-like material 16 Resin-based plate material 17 Earth structure 18 Pile 19 Slope stabilization plate 20 Ground anchor 21 Flat rectangular mounting bracket 22 Flat rectangular mounting bracket having a rectangle 23 Cross mounting bracket 24 Cross mounting bracket of different length

Claims (3)

A mounting bracket for welding and fixing a resin-based plate material or resin-based sheet using a thermoplastic resin on at least one surface by a high-frequency induction heating method, wherein the bracket is at least a conductive metal plate having a plurality of small holes A resin layer containing the same resin as the thermoplastic resin is laminated on one side without being adhered , and the same resin as the resin of the resin layer is disposed on the conductive metal plate. Filled in the entire space of the small hole, the resin layer and the resin filled in the small hole of the conductive metal plate are integrated, and further welded and fixed to the resin-based plate material or resin-based sheet A mounting bracket for welding and fixing by a high-frequency induction heating method, wherein a mesh-like conductor that generates heat by a high-frequency induction heating method is disposed on the outermost surface of the surface to be welded. A mounting bracket for welding and fixing a resin-based plate material or resin-based sheet using a thermoplastic resin on at least one surface by a high-frequency induction heating method, wherein the bracket is at least a conductive metal plate having a plurality of small holes A resin layer containing the same resin as the thermoplastic resin is laminated on one side without being adhered , and the same resin as the resin of the resin layer is disposed on the conductive metal plate. Filled in the entire space of the small hole, the resin layer and the resin filled in the small hole of the conductive metal plate are integrated, and further welded and fixed to the resin-based plate material or resin-based sheet A mesh-like conductor having a thickness of 0.05 to 1.0 mm and an aperture ratio of 25 to 90% and generating heat by a high frequency induction heating method is disposed on the outermost surface of the surface to be formed and formed on the metal fitting Concrete anchor bolt Or distance between the concrete anchor pin recess bottom surface and the high-frequency induction heating welding surface is greater than the distance between the peripheral flange lower surface and a high-frequency induction heating welding surface of the mounting bracket, the structure and the lower flange surface when attached to the structure A mounting bracket for welding and fixing by a high frequency induction heating method, characterized in that a gap is generated between them .   A high frequency induction heating method, characterized in that a spring-like material or a rubber-like material is disposed on the bottom surface of the concave portion for the concrete anchor bolt or the concrete anchor pin formed in the mounting bracket according to claim 1 or 2. Mounting bracket for welding and fixing with.

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