JP6265448B1 - Self-supporting crimping jig for waterproof sheet construction - Google Patents

Abstract

To provide a self-supporting crimping jig capable of conveniently performing a waterproof sheet in an easy working posture. Electromagnetic induction is performed from above a waterproof sheet (28) stretched in a covering state on a surface adhesive layer of a conductive disk plate (30) attached and fixed to a waterproof construction surface (M). After being melted by the heater (A) and adhering the waterproof sheet to the conductive disk plate, the waterproof sheet is placed on the conductive disk plate by its own gravity by being placed on the bonded part from above. A self-supporting crimping jig (W) for fixing in a pressed state, a weight disk (33) in which an elastic pad (35) is bonded and integrated on the lower surface, and a posture in which an operator stands on the weight disk And a column rod (36) that stands vertically up to a height that can be carried as it is. Mounting leg (42) of the hand (40) The attached detachably. [Selection] Figure 14

Description

  In the present invention, a surface adhesive layer of a conductive disk plate attached and fixed on a waterproof construction surface such as a rooftop is melted by an electromagnetic induction heater from above a waterproof sheet stretched in a covering state. The present invention relates to a self-supporting crimping jig for bonding a waterproof sheet to the conductive disk plate and then pressing the waterproof sheet strongly from above to crimp it.

  As a construction method for laying waterproof sheets on rooftops such as flat roofs, many conductive disk plates with adhesive layers laminated on the surface are distributed in a scattered manner with anchor bolts etc. on the waterproof construction surface of concrete slabs. Attaching and fixing the waterproof sheet to the entire covering state of the waterproof construction surface, pressing the waterproof sheet against the disk plate from above by an electromagnetic induction heater, and the disk plate by the electromagnetic induction action of the heater Has been conventionally known, for example, as disclosed in Patent Documents 1 and 2, for example, as disclosed in Patent Documents 1 and 2.

  In addition, after the waterproof sheet and the disk plate are bonded and integrated by the electromagnetic induction heater, the waterproof sheet needs to be further pressed and pressed against the disk plate from above, and the crimping jig used for this purpose is also disclosed in Patent Document 3. And is well known in the art.

Japanese Patent No. 3787532 JP 2016-110825 A Japanese Patent No. 5268138

  However, the conventional electromagnetic induction heaters (heating holder / portable induction heating welding apparatus) described in Patent Documents 1 and 2 are cylindrical with a built-in electromagnetic induction heating coil, and the upper surface of the cylindrical vessel body. Hold the handle across the handle and press the waterproof sheet against the conductive disc plate (conductor piece), and on the upper surface (front surface) of the body or the lower surface (back surface) of the handle, depending on the fingertip of one hand The power switch (heating button) is activated (turned on), but as is clear from the posture state of the worker described in the drawings of Patent Documents 1 and 2, the worker is kneeling on the ground as described above. A heating operation must be performed.

  Furthermore, since the crimping jig described in Patent Document 3 is in the form of a disk having an overall height of 20 to 1000 mm including the handle, as apparent from the description paragraph [0027] and FIGS. As with the electromagnetic induction heaters (heating holder / portable induction heating welding device) of Patent Documents 1 and 2 above, the operator must hold the handle of the crimping jig and then press and crimp while pressing on the ground. I must.

  In that case, the conductive disk plate (conductor piece) is in a large number of scattered distribution states as the assignment to the waterproof construction surface, and the pressing heating operation and the subsequent pressing and pressing operation must be performed one by one. Not only does it have to be, but the concrete slabs on the roof, in particular, are extremely hot under the summer heat, and working on the ground while kneeling is severe enough to cause burns.

  The present invention aims to provide a new self-supporting crimping jig useful for solving the above-mentioned problems. For this purpose, in claim 1, a surface adhesive layer of a conductive disk plate attached and fixed to a waterproof construction surface is attached to this. From the upper side of the waterproof sheet stretched in the covering state of, after being melted by an electromagnetic induction heater and bonding the waterproof sheet to the conductive disk plate,

  A crimping jig for fixing the waterproof sheet to a conductive disk plate in a state of being pressed by its own gravity by being placed on the bonded part from above,

  A weight disk with an elastic pad attached to the lower surface and an integrated weight disk, and a support bar that stands up tall to a height that allows the weight disk to be carried while the operator is standing,

  The lower end portion of the support rod is detachably attached to the central portion of the weight disk, and the attachment legs of the separate hand are also attached to the upper end portion of the support rod in a detachable manner.

  Further, in claim 2, the diameter of the weight disk is 100 mm to 115 mm larger than that of the conductive disk plate, the thickness of the weight disk is 10 mm to 12 mm, and the weight of the entire crimping jig is 1.0 kg to 2.0 kg. Similarly, the overall height of the crimping jig is set to 700 mm to 850 mm.

  In claim 3, by providing compatibility between the lower end portion of the support rod and the attachment leg portion of the handle, instead of the support rod removed from the center portion of the weight disk, the extender removed from the upper end portion of the support rod. The attachment legs are set so as to be directly attached to the center of the weight disk.

  In claim 4, the lower end screw shaft portion of the support rod is detachably screwed and fastened to a screw hole formed in the center portion of the weight disk or a welded nut,

  Similarly, a separate square tube nut is detachably screwed to the upper end threaded shaft of the support rod,

  By screwing and fastening the attachment screw shaft part of the litter consisting of eyebolts to the square tube nut so as to be detachable from above,

  It is characterized in that the attachment screw shaft portion of the lender is directly screwed and fastened to the screw hole or the welding nut of the weight disk so as to be compatible with the pillar rod removed from the weight disk.

  Furthermore, in claim 5, the lower end screw hole portion or the welding nut of the support rod is detachably screwed and fastened to the stud bolt that is integrally suspended from the center portion of the weight disk,

  Similarly, by screwing and fastening the attachment screw hole part of the litter consisting of an eye nut to the upper end screw shaft part of the support bar so as to be detachable from above,

  It is characterized in that the attachment screw hole portion of the lender can be directly screwed and fastened to the stud bolt of the weight disk so as to be compatible with the pillar rod removed from the weight disk.

  According to the configuration of claim 1, the self-supporting crimping jig is not pressed against the adhesive portion of the waterproof sheet with respect to the conductive disk plate from above by the operator's human power, but is merely placed and used. Since it press-fits in a pressing state by its own gravity, there is an effect that a stable fixing state can be always obtained with a uniform pressing force.

In addition, the crimping jig includes a weight disk fixed with an elastic pad attached to the lower surface, a support pole that is suspended from the disk to a height that can be carried while standing by an operator, and because it includes a hand hanging attached to the upper end, worker waterproofing surfaces Nihi seat unpalatable without the need as in the prior art mentioned at the outset, by carrying at very comfortable a standing position, a number of The bonding portion of the waterproof sheet to the disk plate can be efficiently pressed and pressed.

  Furthermore, even when an operator enters the lower space due to an obstacle such as an elevated water tank on the waterproof construction surface, even if the crimping jig cannot be placed and used in a self-supporting state, It can be removed from the center of the weight disk, and only its flat flat weight disk can be placed and used in the pressure-bonded state from above to the adhesive part of the waterproof sheet. There is also.

  In that case, if the configuration of claim 2 is adopted, the self-supporting crimping jig having a sufficient crimping force and crimping area to the bonded portion of the waterproof sheet and being most easily portable in a natural standing posture. There is an effect that can be provided.

  In particular, if the configuration of claim 3 is adopted, the weight disk, the support rod, and the lender constituting the crimping jig are simply changed without requiring other separate parts. It can be provided as a crimping jig that can be used from a hand-carrying form in which the support bar hangs tall from the weight disk to a low-profile flat hand-carrying form in which the support bar is removed, or vice versa, and has an excellent mass production effect. Convenience in use can be obtained.

  In this regard, if the configurations of claims 4 and 5 are adopted, the mass production effect and convenience are further improved.

It is a perspective view of the state which connected the suitable portable electromagnetic induction heater used in the pre-process of waterproof sheet construction with the high frequency electromagnetic induction heating apparatus. It is a perspective view which extracts and shows a portable electromagnetic induction heater from FIG. FIG. 3 is a front view of FIG. 2. FIG. 4 is a side view of FIG. 3. It is a disassembled slope figure of the state which extracted the handle rod from the body side of the electromagnetic induction heater. FIG. 4 is a partially enlarged plan view of FIG. 3. FIG. 4 is an enlarged front view of FIG. 3. FIG. 8 is a cross-sectional view taken along line 8-8 in FIG. 7. FIG. 9 is a sectional view taken along line 9-9 in FIG. 8. It is a side view which shows the heating (adhesion) work condition of the waterproof sheet with respect to an electroconductive disc board. It is explanatory drawing which shows the narrow lower space of the elevated water tank in a waterproof construction surface. It is a side view corresponding to FIG. 10 which shows the use condition of the short electromagnetic induction heater by removal of a handle rod. It is a partial expanded sectional view which shows the adhesion state of the waterproof sheet with respect to an electroconductive disc board. It is a perspective view which shows the self-supporting type | mold crimping jig for the waterproof sheet construction which concerns on this invention. It is a front view of FIG. FIG. 16 is a bottom view of FIG. 15. FIG. 17 is a cross-sectional view taken along line 17-17 in FIG. 15. FIG. 15 is an exploded sectional view of FIG. 14. It is a cross-sectional view corresponding to FIG. 17 showing the back lower crimping jig according Removing the strut rod. Operator is a side view of a working situation of mounting the crimping tool to bond portions of the waterproof sheet. It is an expanded sectional view of FIG. 20 which shows the use condition where the crimping jig was self-supporting. FIG. 16 is a front view corresponding to FIG. 15 illustrating a first modified embodiment of the crimping jig. FIG. 23 is an exploded cross-sectional view of FIG. 22. It is sectional drawing corresponding to FIG. 19 which shows the short crimping | compression-bonding jig | tool by removal of a support | pillar stick | rod. FIG. 16 is a front view corresponding to FIG. 15 showing a second modified embodiment of the crimping jig. FIG. 26 is an exploded sectional view of FIG. 25. It is sectional drawing corresponding to FIG. 19 which shows the short crimping | compression-bonding jig | tool by removal of a support | pillar stick | rod.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. First, FIGS. 1 to 9 are suitable portable electromagnetic induction heaters (heating holders) for adhering and integrating a waterproof sheet described later to a conductive disk plate. (A), which is connected to a high-frequency electromagnetic induction heating device (T) via a secondary cable (C2) having a relatively short required length, and is supplied and controlled by the heating device (T). It has come to be.

  That is, the electromagnetic induction heater (A) has a cylindrical body (10) having a diameter (for example, about 100 mm to 115 mm) larger than a height (for example, about 70 mm), and an electromagnetic induction heating coil (not shown). If the power supply switch (heating button) (12) exposed from the upper surface (upper lid) (11) of the container (10) is pushed down and activated, the electromagnetic induction heating device (T ) Is fed to the heating coil of the electromagnetic induction heater (A). (13) is a display lamp being heated exposed on the upper surface (upper lid) (11) of the vessel (10), and (14) is an elastic pad attached and fixed to the lower surface (pressing surface) of the vessel (10). It is made of heat-resistant silicone rubber.

  The electromagnetic induction heating device (T) is provided with a casing (15) that can be moved by a method such as handing, carrying, shouldering, carrying on the back by an operator, and incorporating a power circuit, a heating control circuit, etc. Needless to say, it is connected to the commercial power supply via the primary cable (C1) having a relatively long required length. A power lamp, a heating lamp, a power switch, an output changeover switch, a temperature indicator, and the like are arranged in parallel on the surface of the casing (15), but these are not shown.

  The reason why the electromagnetic induction heater (A) is suitable is that the power supply switch (11) can be activated (switched on) while the worker is standing in an easy posture.

  That is, as apparent from FIGS. 2 to 5 showing the whole of the electromagnetic induction heater (A) and FIGS. 6 to 9 showing the portion extracted and enlarged, the cylindrical shape of the heater (A) is changed. A relatively thick metal (preferably aluminum) base plate (16) is placed on the upper surface (upper cover) (11) of the eggplant body (10). (17) is vertically suspended by a certain height (H1) (for example, about 50 mm to 100 mm). The handle rod receiving cylinder (17) is welded to the base plate (16) as the same metal pipe as the base plate (16). In addition, a nut (18) is embedded in the bottom of each receiving tube (17) so as not to rotate.

  Then, from the inside (lower side) of the vessel body (10) through the upper surface (upper lid) (11) as shown in FIG. 9, the fixing bolt (19) screwed and fastened to the nut (18) The base plate (16) of the handle rod receiving cylinder (17) is attached and fixed to the upper surface (upper cover) (11) of the container (10). In the illustrated embodiment, the base plate (16) not only crosses the diameter line of the upper surface (upper lid) (11) of the body (10), but also part of the flange pieces projecting in a U shape from the middle thereof. As shown in FIGS. 6 and 8, (16a) surrounds the feed switch (12). However, the flange piece (16a) may be omitted.

  A pair of the handle rod receiving cylinders (17) is suspended in a parallel state, and a starting operation rod receiving guide bar (20) of the power supply switch (12) is horizontally fixed and horizontally mounted on the upper end portion thereof. Yes. The guide bar (20) is the same metal plate as the handle rod receiving cylinder (17), and is welded in a connected state of the both receiving cylinders (17), but is substantially the same as the base plate (16). An operation of starting the power supply switch (12) is applied to a part of the flange piece (20a) that has a planar contour shape and projects in the same U-shape so as to correspond to the flange piece (16a) of the base plate (16) from the middle. A bag receiving hole (21) is formed. The starting operation rod (22) of the power supply switch (12) is inserted into the receiving hole (21).

  (23) is a pair of opposing fixing nuts welded from the inside (the mutual gap between the two receiving cylinders) to the midway height position of the handle rod receiving cylinder (17). The tip of the butterfly bolt (24), which is screwed and fastened so as to be able to move forward and backward, is pressed against the handle rod (25) in a retaining state, but the butterfly bolt (24) is screwed. Thus, the handle rod (25) can also be extracted upward from the receiving tube (17).

  More specifically, the horizontal starting operation rod receiving guide bar (20) of the handle rod receiving tube (17) remaining after the handle rod (25) is pulled out is gripped as a handle and the fingertip with one hand extended. Thus, it is possible to directly press down the power supply switch (heating button) (12) and press the electromagnetic induction heater (A) against the conductive disk plate from above the waterproof sheet to be described later.

  In this case, the installation height of the guide bar (20) serving as a handle is such that the fingertip of one hand holding the guide bar is exposed on the upper surface (upper lid) (11) of the body (10) ( It is desirable to set the dimensions so that the heating button (12) can be easily reached.

  Since the handle rod (25) is pressed and fixed by the butterfly bolt (24), it can be directly and conveniently rotated with one hand without using a special rotating operation tool. Further, the butterfly bolt (24) and the fixing nut (23) are disposed inside the handle rod receiving tube (17) (the mutual gap between the two receiving tubes), and the outside of the receiving tube (17). Therefore, even if the electromagnetic induction heater (A) falls down, there is no possibility of damaging a waterproof sheet described later.

  The handle rod (25) is bent from the same metal pipe as the receiving tube (17) into an elongated inverted U shape having a certain height (H2) (for example, about 800 mm to 850 mm) as shown in FIG. The lower portions of both ends of the separation are vertically inserted into the pair of the receiving cylinders (17) so as to be freely detachable from the upper side, and then fixed and maintained in a retaining state by pressing the butterfly bolt (24).

  In the installed state where the handle rod (25) is inserted into the receiving tube (17) and is vertically suspended, the upper end portion of the handle rod (25) forming the bent halfway portion of the inverted U-shape serves as a grip portion (25a). It is at the ground height (H3) (for example, about 900 mm to 950 mm) that can be gripped comfortably up to the standing posture. Since the upper end portion of the handle rod (25) is composed of an endless middle portion of the pipe, even if the electromagnetic induction heater (A) falls down, there is no possibility of damaging the waterproof sheet.

  (26) accepts a horizontal starting operation rod fixed and mounted at a mid-height position lowered by an appropriate fixed distance (D) (for example, about 100 mm) from the grip portion (25a) of the handle rod (25). The guide bar is made of the same metal plate with the same planar contour shape as the horizontal starting operation rod receiving guide bar (20) on the handle rod receiving cylinder (17) side, and projects in a U shape from the middle. A receiving hole (27) of the starting operation rod (22) is also formed in some of the flange pieces (26a).

  And the receiving hole (27) of the starting operation rod receiving guide bar (26) in the handle rod (25) and the receiving hole of the starting operation rod receiving guide bar (20) in the handle rod receiving cylinder (17). The starting operation rod (22) having the same height (length) (H4) (approximately 800 mm to 850 mm exemplified above) as the handle rod (25) is vertically inserted into the upper and lower pair with (21). Has been.

  In other words, the start (on) operation rod (22) of the power supply switch (12) in the electromagnetic induction heater (A) is supported in a state where it can be moved up and down stably by the upper and lower pairs of the receiving guide bars (26) and (20). The lower end portion of the power supply switch (12) can accurately contact the surface (upper surface) of the feed switch (12), and the upper end portion of the activation operation rod (22) holds the grip portion (25a) of the handle rod (25). It is in a positional relationship that can be pushed down without trouble by the fingertip of one hand.

  Incidentally, since some of the flange pieces (26a) (20a) protruding from the middle of the starting operation bar receiving guide bar (26) (20) have a U-shape in plan view, they should be electromagnetic. Even if the induction heater (A) falls down, there is no risk of damaging the waterproof sheet by the flange pieces (26a) (20a), and the start guide rod receiving guide bar on the handle rod receiving cylinder (17) side. Even when holding (20) with one hand and performing the start-up (on) operation of the power supply switch (12), the flange piece (20a) does not cause any trouble or restriction.

  The portable electromagnetic induction heater (heating holder) (A) is used for laying a waterproof sheet (28) on a waterproof construction surface (M) using, for example, a roof concrete slab on a flat roof as a waterproof construction surface (M). In the construction of the waterproof sheet (28), a conductive disk plate in which a hot melt adhesive layer (29) made of a thermoplastic resin is laminated and integrated on the surface as shown in FIG. A large number of (30) are attached and fixed to the waterproof construction surface (M) as anchor distribution bolts (31) or the like in a predetermined distributed distribution state. The conductive disk plate (30) is a circular metal plate that generates heat by electromagnetic induction and has a diameter of about 86 mm to 88 mm.

  On the other hand, the waterproof sheet (28) is prepared and prepared in a size / planar contour shape corresponding to the waterproof construction surface (M), and the entire waterproof construction surface (M) is covered with the disk plate (30). The electromagnetic induction heater (A) is pressed against the disk plate (30) from above the waterproof sheet (28). The waterproof sheet (28) is made of a vinyl chloride sheet having a thickness of about 1.2 mm to 1.5 mm and other synthetic resin sheets.

  The pressing operation of the electromagnetic induction heater (A) must be performed for each of the conductive disk plates (30) that are scattered and distributed. In that case, as an operator, a waterproof construction surface (M While holding the grip (25a) of the handle rod (25) standing tall from the body (10) of the electromagnetic induction heater (A) with one hand while standing in a comfortable position The electromagnetic induction heating coil (not shown) can be fed by pressing down the start (on) operation rod (22) of the power supply switch (12) with the fingertip of one hand held by the grip. Therefore, unlike the prior art described at the beginning, it is not necessary to kneel on the ground (waterproof construction surface) and perform severe heating work.

  However, as illustrated in FIG. 11, an elevated water tank (32) is installed on the waterproof construction surface (concrete slab) (M) of the roof, and the installation height (H5) is, for example, about 400 mm to 500 mm. An operator enters the narrow lower space (S) of the elevated water tank (32), which is lower than the ground height (H3) (about 900 mm to 950 mm exemplified above) of the handle rod (25) in the heater (A). Thus, there are cases where an easy heating operation cannot be performed in a standing posture as shown in FIG.

  When there is an obstacle in the work in such a standing posture, as shown in FIGS. 2 to 5, the operation switch (22) of the power supply switch (12) is supported and supported. The handle rod (25) is pulled out from the handle rod receptacle (17) and removed. Then, hold the horizontal starting operation rod receiving guide bar (20) of the handle rod receiving tube (17) as shown in FIG. 12 to waterproof the body (10) of the electromagnetic induction heater (A). The power supply switch (heating) exposed to the upper surface (upper lid) (11) of the container (10) is pressed from above the sheet (28) onto the conductive disk plate (30) and is held by the fingertip of one hand. Button) (12) may be pressed down directly.

  In any case, if power is supplied to the electromagnetic induction heating coil of the electromagnetic induction heater (A) by the start (on) operation of the power supply switch (12), the heating coil is excited by the alternating current, and the electromagnetic field of the generated magnetic field is excited. Due to the induction action, an eddy current flows through the disk plate (30). Joule heat is generated by the eddy current, the disk plate (30) itself generates heat, and the waterproof adhesive layer (28) is transferred to the disk plate (30) as shown in FIG. 13 by the melted adhesive layer (29). It will be bonded and integrated.

  During the heating operation of the electromagnetic induction heating coil by the start (on) operation of the power supply switch (12), this can be known by lighting the display lamp (13) in the electromagnetic induction heater (A). When the preset heating (power supply) time (for example, about 10 seconds to 30 seconds) has passed and the indicator lamp (13) is extinguished, the disk plate (30) is bonded. A certain waterproof sheet (28) is kept in a fixed state in which it is strongly pressed from above.

  Next, the self-supporting crimping jig (W) of the present invention used for the final fixing of the bonded state will be described. In FIGS. 14 to 19 showing the basic embodiment of the crimping jig (W), (33 ) Is a weight disk made of an iron plate or other metal plate, and has a constant diameter of about 100 mm to 115 mm, a constant thickness of about 10 mm to 12 mm, and about 950 g to 980 g, which are slightly larger than the conductive disk plate (30). A screw hole (34) having a constant depth that does not reach the lower surface is formed at the center of the circle.

  Further, the disk of the disk (30) is caused by the metal weight disk (33) directly touching the waterproof sheet (28) to cause scratches, or shine (gloss) generated from the bonded portion of the waterproof sheet (28). An elastic pad (35) having a certain thickness (for example, about 2 mm to 3 mm) is attached and fixed to the lower surface of the weight disk (33) so as to prevent the presence of.

  The elastic pad (35) may be an elastic material that can perform the above functions, but it is particularly preferable to employ a silicone rubber excellent in weather resistance and durability.

  (36) is a support rod having a constant height (length) that allows the operator to carry the weight disk (33) in a standing position, and has a constant thickness (separate from the weight disk (33)). For example, a steel rod having a diameter of about 10 mm) and other metal rods, both ends of which are an upper screw shaft portion (37) and a lower screw screw shaft portion (38) in which male screws are engraved.

  The lower end screw shaft portion (38) of the support rod (36) is screwed and fastened to the screw hole (34) of the weight disk (33) so as to be detachable from above. Similarly, (39) is a square tube nut screwed and fastened to the upper end screw shaft portion (37) of the support rod (36) from above, and has a regular hexagonal shape.

  Furthermore, (40) is a litter made up of eyebolts, which has an endless circular ring-shaped head (41), and its mounting leg is a mounting screw shaft (42) in which a male screw is engraved. As above, it is screwed and fastened to the square tube nut (39) so as to be detachable from above. Since the head (41) of the litter (40) is cut off and has a ring shape with no end edge (endless), even if the crimping jig (W) falls down during use, it is waterproof. There is no risk of damaging the sheet (28).

  14, 15, and 17 show the entire crimping jig (W) in the assembled state, and the overall weight is set to about 1.0 kg to 2.0 kg, preferably 1.5 kg. . If the weight is less than 1.0 kg, the pressure-bonding force between the waterproof sheet (28) and the conductive disk plate (30) is still weak. If the weight exceeds 2.0 kg, the waterproof sheet (28) is generated due to the excessive pressure-bonding force. There is a risk of damage due to thinning, and workability is also deteriorated.

  Further, the overall height (H6) of the crimping jig is set to 700 mm to 800 mm, preferably 750 mm. This is because if the dimensions are shorter than 700 mm or taller than 850 mm, it is difficult for the operator to carry in the most comfortable posture state.

  Further, since the weight disk (33) of the crimping jig (W) has a diameter of about 100 mm to 115 mm which is slightly larger than the conductive disk plate (30), a waterproof sheet for the disk plate (30). There is no shortage in the crimping area of (28), and it can stand in a stable mounting state.

  In order to fix the waterproof sheet (28) adhered to the conductive disk plate (30) by the heating operation with the electromagnetic induction heater (A) more strongly after that, the crimping jig (W) is attached to the operator. Carry it in a standing position and place it on the adhesive part of the waterproof sheet (28) as shown in FIGS. 20 and 21, and keep it in a self-supporting state for a certain period of time (about 30 seconds to 1 minute). By applying a pressing force, it is firmly bonded.

  That is, since the conductive disk plates (30) are arranged and arranged in a multi-spot distribution state, each time the heating operation is performed on each of the conductive disk plates (30) to finish bonding the waterproof sheet (28), the waterproof disk plate (30) is waterproofed. The crimping jig (W) is placed in a self-supporting state on the bonded portion of the sheet (28), and the next disk plate (30) is pressed during a predetermined time (for example, about 30 seconds) by the crimping jig (W). On the other hand, the heating work for the conductive disk plates (30) is repeated by sequentially repeating the work of heating the waterproof sheet (28) by the electromagnetic induction heater (A) for a predetermined time (for example, about 30 seconds). The crimping work can be performed efficiently and comfortably in a standing posture, and the workability is remarkably excellent.

  In addition, as with the electromagnetic induction heater (A), the crimping jig (W) includes an elevated water tank (32) which is an obstacle in work in a standing posture as illustrated in FIG. When an operator enters the lower space (S) and the crimping jig (W) cannot be placed and used in a self-supporting state, as shown in FIGS. ) To remove the support rod (36) from the weight disk (33) and attach the attachment screw shaft (42) of the handle (40) removed from the square nut (39) to the support rod (36). Instead, the crimping jig (W), which is flattened as a whole by screwing and fastening directly into the screw hole (34) of the weight disk (33), is waterproofed against the conductive disk plate (30). Place it on the adhesive part of the sheet (28) from above and press it with its own weight. By empowering it may be secured maintaining the crimping state.

  In that case, the crimping jig (W) in the assembled state of FIG. 19 does not include the support rod (36) and the square tube nut (39), so that the total weight is light, for example, about 1.05 kg. Therefore, it may be pressed (placed use) for a long time as the pressure-bonding force is weakened. The square nut (39) may be left in a state of being fastened to the upper end screw shaft portion (37) of the support rod (36), or may be removed from the support rod (36).

  In any case, unlike the electromagnetic induction heater (A), the crimping jig (W) is not pressed and crimped by the operator's hands, but a waterproof sheet (28) against the conductive disk plate (30). The jig (W) is placed and used from above, and is pressed and crimped by its own gravity, so there is no risk of manual pressing force variation, and it is always uniform. There is an effect of obtaining a stable fixed state with the pressing force.

  In the basic embodiment of the self-supporting crimping jig (W), the screw hole (34) is formed at the center of the weight disk (33), but FIGS. 22 to 24 corresponding to FIGS. As shown in the first modified embodiment of the present invention, a welding nut (34a) instead of the screw hole (34) is integrally attached to the center of the weight disk (33), whereby the weight disk (33) is integrated. The lower end screw shaft portion (38) of the support rod (36) and the mounting screw shaft portion (42) of the handle (40) made of the eyebolt can be screwed and fastened to the welding nut (34a). You may decide to.

  Further, as shown in the second modified embodiment of FIGS. 25 to 27 corresponding to 15, 18 and 19, respectively, it replaces the screw hole (34) of the basic embodiment and the welding nut (34a) of the first modified embodiment. The stud bolt (34b) is planted integrally from the center of the weight disk (33), while the lower end portion of the support rod (36) is used as the lower end screw shaft portion (38) of the basic embodiment or the first modified embodiment. ) As a lower end screw hole (38b) in which a female screw is engraved or a welding nut, and the handle (40) as an eye nut instead of the eye bolt of the basic embodiment or the first modified embodiment, The mounting screw hole portion (42b) in which the female screw is engraved on the mounting leg portion is compatible with the lower end screw hole portion (38b) of the support rod (36), and the stud bolt of the weight disk (33). Removably screwed to (34b) It may be determined so as to kill.

  As shown in FIG. 27 through FIG. 25 to FIG. 26, the support bar (36) is removed from the weight disk (33) of the crimping jig (W), and the handle (40) is removed from the support bar (36). The mounting screw hole portion (42b) of FIG. 4 is screwed and fastened directly to the stud bolt (34b) of the weight disk (33) instead of the support rod (36), so that the overall height is flattened. It is used as a crimping jig (W).

  In the case of the basic embodiment and the first and second modified embodiments, the weight disk (33), the support rod (36), and the handle (40) are screwed to each other by a male screw and a female screw. Although it is assembled detachably by the joint fastening means, the weight disk (33) is not limited to such a screw fastening means. In short, the weight disk (33) can be obtained by simply reassembling the components of the crimping jig (W). The structure of the crimping jig (W) that can be used from the hand-held form in which the support bar (36) is vertically suspended to the low-profile flat hand form from which the support bar (36) is removed, or vice versa Then, it belongs to the category described in the claims of the present invention.

  In addition, since the other structure in the 1st, 2nd modified embodiment of FIGS. 22-27 and its usage are substantially the same as the said basic embodiment of FIGS. 1-21, the FIG. Only the corresponding reference numerals to 21 are entered, and detailed description thereof is omitted.

(10)-Body (12)-Power switch (15)-Casing (16)-Base plate (17)-Handle rod holder (19)-Fixing bolt (20) (26)-Acceptance for starting operation rod Guide bar (21) (27) ・ Accepting hole for starting operation rod (22) ・ Starting rod (25) ・ Handle rod (28) ・ Waterproof sheet (29) ・ Adhesive layer (30) ・ Conductive disc ( 31) ・ Anchor bolt (32) ・ Elevated water tank (33) ・ Weight disk (34) ・ Screw hole (34a) ・ Weld nut (34b) ・ Stud bolt (35) ・ Elastic pad (36) ・ Support rod (37 ) ・ Upper screw shaft (38) ・ Lower screw shaft (38b) ・ Lower screw hole (39) ・ Square nut (40) ・ Lipper (41) ・ Head (42) ・ Mounting screw shaft ( 42b) Mounting screw hole (A) Electric Induction heater (C1) · 1 primary cable (C2) · 2 primary cable (M) · waterproof construction surface (T) · high-frequency electromagnetic induction heater (W) · freestanding crimping jig

Claims (5)

The surface adhesive layer of the conductive disk plate attached and fixed to the waterproof construction surface is melted by electromagnetic induction heater from above the waterproof sheet stretched over the cover to the conductive disk plate. After gluing the tarpaulin,
A crimping jig for fixing the waterproof sheet to a conductive disk plate in a state of being pressed by its own gravity by being placed on the bonded part from above,
A weight disk with an elastic pad attached to the lower surface and an integrated weight disk, and a support bar that stands up tall to a height that allows the weight disk to be carried while the operator is standing,
Waterproof sheet construction, characterized in that the lower end of the support bar is detachably attached to the center of the weight disk, and the attachment legs of the separate hand are also attached to the upper end of the support bar. Self-supporting crimping jig.   The diameter of the weight disk is 100 mm to 115 mm larger than that of the conductive disk plate, the thickness of the weight disk is 10 mm to 12 mm, the weight of the entire crimping jig is 1.0 kg to 2.0 kg, and the entire crimping jig is also the same. The self-standing crimping jig for waterproof sheet construction according to claim 1, wherein the height of each is set to 700 mm to 850 mm.   By giving compatibility between the lower end of the support bar and the attachment leg of the handle, instead of the support bar removed from the center of the weight disk, the attachment leg of the extender removed from the upper end of the support bar The self-supporting crimping jig for constructing a waterproof sheet according to claim 1, wherein the relationship is set so that can be directly attached to the center of the weight disk. While detachably screwing and fastening the lower end screw shaft portion of the support rod to the screw hole or the welded nut formed in the center of the weight disk,
Similarly, a separate square tube nut is detachably screwed to the upper end threaded shaft of the support rod,
By screwing and fastening the attachment screw shaft part of the litter consisting of eyebolts to the square tube nut so as to be detachable from above,
The mounting screw shaft portion is defined so as to be able to be screwed and fastened directly to a screw hole or a welding nut of the weight disc in a manner compatible with the support rod removed from the weight disc. A self-supporting crimping jig for waterproof sheet construction according to 1. While detachably screwing and fastening the lower end screw hole portion of the support rod or the welding nut to the stud bolt that suspends integrally from the center portion of the weight disk,
Similarly, by screwing and fastening the attachment screw hole part of the litter consisting of an eye nut to the upper end screw shaft part of the support bar so as to be detachable from above,
2. The mounting rod hole of the lender is defined so as to be able to be screwed and fastened to a stud bolt of the weight disk in a manner compatible with the column rod removed from the weight disk. Self-supporting crimping jig for waterproof sheet construction.

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