JP5705502B2 - Water discharge device and processing method of ALC panel - Google Patents

Description

  The present invention relates to a water discharger that prevents scattering of chips generated during processing of an ACL panel and an ALC panel processing method using the same.

  Conventionally, when ALC (lightweight cellular concrete) panels are used as building floors and outer walls, the corners and edges that interfere with the pillars and other frames are processed on-site with a saw, etc., as long as they do not affect the strength. To be done. During such on-site processing, chips from the ALC panel are generated. ALC does not contain substances that are particularly harmful to the human body, but during strong winds, etc., it flew in the wind and scattered, contaminating the site and entering the eyes of workers to delay work. .

  As a method for preventing the scattering of chips, for example, in Patent Document 1, in a cutting machine having a disk-shaped rotary blade, water is cut into the rotary blade with a fountain nozzle to make the chips mud. There is a description of the method.

JP 2000-145165 A

  However, cutting machines using such rotary blades are not suitable for fine processing of ALC panels, and furthermore, chips containing water and moisture are scattered by centrifugal force and measures must be taken for that purpose. There is a problem that must be.

  This invention solves such a subject, the water discharging apparatus which can perform the processing of the corner part and edge part of an ALC panel in a construction site optimally, and the ALC panel using this water discharging apparatus It aims at providing the processing method of.

A water discharger according to the present invention is a water discharger that is attached to an electric reciprocating saw having a blade that reciprocates back and forth by a motor drive while holding a rear end, and has a water discharger that includes a nozzle and flexibility. And having a flexible tube part connected to a water discharge part at one end side and a valve part connected to the water hose at the other end side , and a clamping part for clamping the housing of the electric reciprocating saw . A first member having a first sandwiching piece and a first connecting piece provided perpendicular to the first sandwiching piece, a second sandwiching piece facing the first sandwiching piece, and a second member that is perpendicular to the second sandwiching piece. The second member having the second connecting piece connected to the first connecting piece, the first connecting piece and the second connecting piece are connected, and the distance between the first holding piece and the second holding piece is set to the width of the housing. Strong positioning and housing that can be adjusted accordingly In a tightening portion for tightening the first clamping piece and a second clamping piece to sandwich comprises a valve unit, characterized in that it is fixed to the first member or the second member.

  In the water discharging apparatus according to the present invention, since the water discharging portion provided with the nozzle is connected to the flexible tube portion, the position and direction of the nozzle can be adjusted by bending the flexible tube portion. Therefore, when processing an ALC panel using an electric reciprocating saw, depending on the form of the electric reciprocating saw, the installation state of the ALC panel, the part to be processed, etc., in an optimum position and direction to prevent the scattering of chips. Water can be discharged. As described above, the processing operation of the ALC panel at the construction site can be optimally performed.

In addition, by setting the configuration as this, the positioning unit, to adjust the distance between the first member and the second member, connecting each coupling piece at the location where each gripping pieces abuts the housing of the electric reciprocating saw By doing so, the first member and the second member can be positioned. Further, after the positioning is performed in this way, the first member and the second member are firmly fixed to the housing by tightening each clamping piece with the clamping portion and firmly clamping the housing with each clamping piece. be able to. As described above, even when the size of the electric reciprocating saw is different, it becomes possible to attach the water discharging device and to prevent the water discharging device from being detached or displaced due to the vibration of the electric reciprocating saw by being firmly fixed. can do.

  Moreover, it is preferable that the water discharging apparatus which concerns on this invention is further provided with the switching mechanism of water discharge amount and a water discharge state. As described above, by enabling the switching of the water discharge amount and the water discharge state, it is possible to perform adjustment adapted to the situation at the processing site.

  The processing method of the ALC panel according to the present invention includes a step of placing the ALC panel in a state where the processing target part is floated, and the above-described water discharging device is attached to the electric reciprocating saw, and the position and direction of the water discharging portion of the water discharging device are adjusted And a step of driving the electric reciprocating saw while discharging the water from the water discharge portion while maintaining the tip of the blade downward, and processing the portion to be processed of the ALC panel. According to the processing method of the ALC panel according to the present invention, the scattering direction of the chips containing water and moisture is the direction of the reciprocating motion of the blade of the electric reciprocating saw in the upright state (the state where the tip of the blade is downward), That is, since it is limited to the up and down direction, it is possible to limit the scattering of chips containing water and moisture to a very narrow range.

  According to the present invention, it is possible to optimally perform processing of corners and edge portions of ALC panels at a construction site.

It is a perspective view of the water discharging apparatus which concerns on embodiment of this invention. It is a figure which shows an example of the processing method of the ALC panel using the water discharging apparatus which concerns on embodiment of this invention.

  Hereinafter, preferred embodiments of a water discharge device according to the present invention and a method for processing an ALC panel using the same will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view of a water discharge device 1 according to the present embodiment. In FIG. 1, the electric reciprocating saw 100 is indicated by a virtual line. FIG. 2 is a diagram illustrating a processing method of the ALC panel 200 using the water discharge device 1. The electric reciprocating saw 100 to which the water discharge device 1 is attached includes a housing 101 and a blade 102 attached to the tip of the housing 101. The rear end of the blade 102 is held and reciprocates back and forth by driving the motor. As the electric reciprocating saw 100, a general electric reciprocating saw of a type that cuts by reciprocating movement of the blade 102 can be applied.

  As shown in FIGS. 1 and 2, the water discharge device 1 includes a water discharge portion 2 that discharges water, a flexible tube portion 3 that adjusts the position and angle of the water discharge portion 2, and a valve portion 4 that switches between opening and closing of the water discharge portion 2. A holding part 6 for holding the housing 101 of the electric reciprocating saw 100, a water hose 7 for passing water to the water discharging part 2, and a water storage tank (not shown) for supplying water to the water discharging part 2 via the water hose 7 And.

  The water discharge part 2 is attached to the front-end | tip part of the flexible tube part 3, and is provided with the nozzle 11 which discharges water at the front-end | tip. In the present embodiment, the water discharger 2 can switch the amount of water discharged and the state of the discharged water to a low pressure linear shape, a high pressure jet shape, a mist shape, and the like by rotating the nozzle 11. The amount of water discharged can also be adjusted by the valve unit 4. The nozzle 11 and the valve portion 4 constitute a water discharge amount and water discharge state switching mechanism.

  The flexible tube portion 3 is a tube having flexibility, and one end side is connected to the water discharge portion 2 and the other end side is connected to the valve portion 4. The flexible tube portion 3 is made of a thin copper tube, and the internal cavity functions as a water flow portion. The flexible tube portion 3 can be easily bent by human power and can maintain the state after being bent. Therefore, according to the form of the electric reciprocating saw 100, the installation state of the ALC panel 200, the processing site, and the like, the position and direction of the water discharger 2 can be adjusted so as to be suitable for preventing the scattering of chips. . The flexible tube portion 3 is not limited to a thin copper tube, and any material tube may be used as long as it can be bent by human power and can maintain the state after bending.

  The valve unit 4 includes a ball valve 12, a valve opening / closing lever 13, and a joint pipe unit 14. The ball valve 12 and the flexible tube portion 3 are connected via a joint piping portion 14. In addition, the shape and length of the joint piping part 14 are not specifically limited, A vertical joint like FIG.1 and FIG.2 may be used, and a linear joint may be used. Alternatively, the flexible tube portion 3 may be directly connected to the ball valve 12. The water flow hose 7 is a general rubber one, and one end is connected to the valve portion 4 and the other end is connected to the water storage tank. The water storage tank stores water to be discharged from the water discharge unit 2 and incorporates a pump for pumping the water.

  The clamping part 6 is fixed to the electric reciprocating saw 100 by clamping the electric reciprocating saw 100 and is made of a steel material for fixing the water discharging part 2, the flexible pipe part 3, the valve part 4, and the water flow hose 7. It is a fixture. The clamping unit 6 includes a first frame (first member) 21, a second frame (second member) 22, a positioning unit 23, and a tightening unit 24.

  The first frame body 21 is a steel material made up of a first clamping piece 26 and a first connecting piece 27. The first frame body 21 has a substantially L-shaped overall shape by providing the first connecting piece 27 vertically at one end of the first sandwiching piece 26. The second frame body 22 is a steel material composed of the second clamping piece 28, the second connecting piece 29, and the fixed piece 31. The second connecting piece 29 is provided vertically on one end side of the second sandwiching piece 28. Further, the second sandwiching piece 28 has an extended portion 28a extending further to the one end side than the second connecting piece 29, and the fixed piece 31 is provided vertically at one end portion of the extended portion 28a. The fixed piece 31 extends in the same direction as the second clamping piece 28. As a result, the overall shape of the second frame 22 is substantially F-shaped.

  The first clamping piece 26 and the second clamping piece 28 are arranged to face each other so as to be in direct contact with the housing 101 of the electric reciprocating saw 100, and are clamped by the clamping part 24, thereby clamping the housing 101. The tightening portion 24 includes a through hole formed so as to face the first holding piece 26 and the second holding piece 28, a bolt 32 inserted through the through hole, and the bolt 32. And a nut 33 for tightening the piece 26 and the second holding piece 28. The tightening portion 24 is provided in the vicinity of the connecting pieces 27 and 29 in the first sandwiching piece 26 and the second sandwiching piece 28, and is also provided in the vicinity of the end on the opposite side across the housing 101. The tightening portion 24 may be provided only at any one location, but in order to secure a tightening force, at least the distal end side of the sandwiching pieces 26 and 28 (the housing with respect to the connecting pieces 27 and 29). It is preferable to provide it on the opposite side of 101). Moreover, you may increase the fastening part 24 further.

  The first connecting piece 27 and the second connecting piece 29 are connected to each other by being overlapped at a predetermined position and fastened with a bolt 34 and a nut. Moreover, the 1st connection piece 27 and the 2nd connection piece 29 are connected after adjusting a mutual relative position. Specifically, the positioning unit 23 includes a round hole formed in the first connection piece 27, a long hole 36 formed in the second connection piece 29, and a bolt 34 inserted into the round hole and the long hole 36. And a nut for fastening the bolt 34. Since the long hole 36 extends along the extending direction of the second connecting piece 29, the relative position between the first frame body 21 and the second frame body 22, that is, the first holding piece 26 and the second holding piece 28. The distance between can be adjusted. In addition, after the position adjustment is completed, the first frame body 21 and the second frame body 22 can be fixed by tightening the bolt 34 and the nut. In addition, you may abbreviate | omit a nut by making the round hole formed in the 1st connection piece 27 into a screw hole.

  The fixing piece 31 is for fixing the clamping part 6 to the valve part 4. The fixing piece 31 is provided with two insertion holes, a U bolt 37 is inserted from above the insertion hole, and the valve portion 4 is clamped between the fixing piece 31 and the U bolt 37 so that the holding portion 6 becomes the valve portion. 4 is fixed. In addition, the structure for fixing the clamping part 6 to the valve part 4 is not limited to the fixing piece 31 as shown in FIG.1 and FIG.2, For example, the valve part 4 is attached to the extension part 28a of the 2nd clamping piece 28. FIG. It may be fixed. Alternatively, a fixing piece may be provided on the first frame body 21.

  A procedure for attaching the water discharging device 1 to the electric reciprocating saw 100 will be described. The first frame body 21 and the second frame body 22 are arranged so that the sandwiching pieces 26 and 28 face each other with the housing 101 of the electric reciprocating saw 100 sandwiched therebetween, and the connection pieces 27 and 29 overlap. Position adjustment is performed with the sandwiching pieces 26 and 28 facing each other (at this time, the bolt 34 is inserted in advance into the round hole and the long hole 36 and the nut is loosely tightened, and the bolt 34 is moved along the long hole 36. The position may be adjusted by sliding and moving the first connecting piece 27 and the second connecting piece 29 at the position where the clamping pieces 26 and 28 abut against the side surface of the housing 101. The first frame body 21 and the second frame body 22 are positioned by fastening with the above. Thereby, the clamping part 6 can be temporarily fixed to the housing 101. Next, the housing 101 is firmly held by the holding pieces 26 and 28 by inserting the bolts 32 through the through holes of the holding pieces 26 and 28 and tightening the nut 33. Accordingly, it is possible to prevent the water discharge device 1 from being detached or displaced due to vibration of the electric reciprocating saw 100 during processing.

  As described above, in the water discharge device 1 according to the present embodiment, since the water discharge portion 2 including the nozzle 11 is connected to the flexible tube portion 3, the position of the nozzle 11 is determined by bending the flexible tube portion 3. And the direction can be adjusted. Therefore, in the case of processing the ALC panel 200 using the electric reciprocating saw 100, the optimal position for preventing the scattering of chips according to the form of the electric reciprocating saw 100, the installation state of the ALC panel 200, the part to be processed, etc. And water can be discharged in the direction. As described above, the processing operation of the ALC panel 200 at the construction site can be optimally performed.

  Next, a method for processing the ALC panel will be described.

  A case where an ALC panel temporarily placed in a flat stack state is processed will be described. In this operation, as shown in FIG. 2, cutting is performed with the tip of the blade 102 of the electric reciprocating saw 100 facing downward. First, the ALC panel 200 is laid flat with the processing target part floating. When a plurality of ALC panels 200 are temporarily placed in a flat stacked state, the ALC panel 200 stacked on the uppermost side is slightly shifted from the lower ALC panel 200 to form a space below the processing target portion CP. To do. Next, the water discharge device 1 is attached to the electric reciprocating saw 100 according to the procedure described above. Moreover, the position and direction of the water discharging part 2 of the water discharging apparatus 1 are adjusted. Specifically, by bending the flexible tube portion 3, the position of the nozzle 11 and the water discharge direction are adjusted so that chips do not scatter, and the water discharge state and water discharge amount (or water pressure) are adjusted. The position of the nozzle 11 is adjusted so that water is discharged to the blade 102 above the cutting position so that water flows down to the cutting position of the ALC panel 200 through the downward blade 102. The electric reciprocating saw 100 is driven while water is discharged from the water discharge unit 2 while the tip of the blade 102 is kept downward, and the processing target portion CP of the ALC panel 200 is cut. At this time, by performing cutting using the tip end side of the blade 102, that is, the region below the water discharger 2, the chips are flowed downward together with the water. Thus, according to the processing method of the ALC panel 200 according to the present embodiment, the electric reciprocating saw 100 is in a standing state (a state where the tip of the blade 102 faces downward) as to the scattering direction of the chips containing water and moisture. Since it is limited to the reciprocating direction of the blade, that is, the vertical direction, the scattering of chips containing water and moisture can be limited to a very narrow range.

  A case where the ALC panel (outer wall panel) in a standing state is processed will be described. In this operation, cutting is performed with the tip of the blade 102 of the electric reciprocating saw 100 facing in the lateral direction. In this state, even if water is discharged to the blade 102, water does not flow to the tip side along the blade 102. Further, when water is directly discharged toward the processing target portion CP, water is also returned at the same time when the blade 102 returns to the near side, so that liquid water falls on the operator and hinders the operation. Therefore, when processing the erected ALC panel 200, it is preferable to spray water in a mist shape and spray the mist-like water in accordance with the trajectory where chips fall. This prevents the worker from returning and bathing in water.

  DESCRIPTION OF SYMBOLS 1 ... Water discharging apparatus, 2 ... Water discharging part, 3 ... Flexible pipe part, 4 ... Valve | bulb part, 6 ... Nipping part, 11 ... Nozzle, 21 ... 1st frame (1st member), 22 ... 2nd frame ( (Second member), 23 ... positioning part, 24 ... clamping part, 26 ... first clamping piece, 27 ... first coupling piece, 28 ... second clamping piece, 29 ... second coupling piece, 100 ... electric reciprocating saw, 101 ... housing, 102 ... blade, 200 ... ALC panel.

Claims (3)

A water discharger attached to an electric reciprocating saw having a blade that holds a rear end portion and reciprocates back and forth by motor drive,
A water discharge section equipped with a nozzle;
A flexible tube portion having flexibility, having one end connected to the water discharge portion and the other end connected to a valve portion connected to a water flow hose ;
A clamping part for clamping the housing of the electric reciprocating saw;
Equipped with a,
The clamping part is
A first member having a first clamping piece and a first connecting piece provided perpendicular to the first clamping piece;
A second member having a second connecting piece opposed to the first holding piece, and a second connecting piece provided perpendicular to the second holding piece and connected to the first connecting piece;
A positioning portion for connecting the first connecting piece and the second connecting piece and enabling an interval between the first holding piece and the second holding piece to be adjusted according to a width of the housing;
A clamping portion for clamping the first clamping piece and the second clamping piece so as to firmly clamp the housing;
The water discharge device , wherein the valve portion is fixed to the first member or the second member . The water discharge device according to claim 1 , further comprising a switching mechanism between the water discharge amount and the water discharge state. A process of placing the ALC panel flat in a state where the part to be processed is floating;
The step of attaching the water discharge device according to claim 1 or 2 to an electric reciprocating saw and adjusting the position and direction of the water discharge portion of the water discharge device;
Maintaining the tip of the blade downward, driving the electric reciprocating saw while discharging water from the water discharge unit, and processing the processing target portion of the ALC panel;
A method for processing an ALC panel, comprising:

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