JP4071863B2 - Foam cutting device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
In the case where a structural sandwich panel in which both surfaces of a foam material as a core material are sandwiched between structural surface materials is used in a house or the like, the present invention is for partially cutting off the side end portion of the foam material of the structural sandwich panel. The present invention relates to a foam cutting device.
[0002]
[Prior art]
In houses and the like, structural sandwich panels in which both sides of a foam material as a core material are sandwiched between structural surface materials are widely used. In order to connect such structural sandwich panels to each other, it is necessary to form a recessed groove in the side end portion of each structural sandwich panel by partially cutting off the foam material. Such a foam cutting device was used. The heat transfer housing 4 ′ of the foam cutting device 1 ′ has a built-in heating wire linked to a power cord 5 extending from a power supply (not shown), and the heating wire 4 generates Joule heat to generate the heat transfer housing 4. 'Will be heated. The operator holds the main body 2 by hand, and the foam material in the direction of the arrow (in front of the operator) with the lower surface of the guide jig 3 in contact with the upper end surfaces of the structural surface materials B, B By sliding the cutting device 1 ′ and pressing the heated heat transfer housing 4 ′ against the foam material F, this can be cut out to form a recessed groove in the upper end portion of the structural sandwich panel P.
[0003]
[Problems to be solved by the invention]
However, such a conventional foam cutting device 1 ′ has the following problems. That is, since the heat transfer housing 4 ′ of the foam cutting device 1 ′ is formed by bending a hollow round bar having a diameter of about 10 mm, its corner is not a strict right angle but an arc having an outer radius of about 20 mm. . Therefore, when this foam material cutting device 1 ′ is used, as shown in FIG. 6 (a), the corners of the structural surface material B and the foam material F are always left uncut (the hatched portion). In this state, the structural sandwich panels P cannot be connected to each other, so that they must be removed later using a cutter or the like, which is troublesome and dangerous.
[0004]
Further, since the foam material F melts at the moment of contact with the heated heat transfer housing 4 ', only the portion of the heat transfer housing 4' that comes into contact with the foam material F first is cut out in order to cut the foam material F. Although it is sufficient if it is heated, the entire structure of the heat transfer housing 4 'is heated uniformly in the foam cutting device 1' because of its structure, and the melt cut width of the foam is not good. Because it was necessary large, unreasonably large electric power was required.
[0005]
On the other hand, the lower part of the heat transfer housing 4 ′ has a U shape having a horizontal rod 4c ′, and the guide jig 3 can only slide while keeping parallel to the horizontal rod 4c ′. The side end of the structural sandwich panel P could not be processed diagonally using '. Accordingly, when the structural sandwich panel P is used as a roof panel, for example, when the structural sandwich panel P (structural surface material B and foam material F) is processed on the surface indicated by a two-dot chain line in FIG. Before cutting the structural surface material B, cut off the foam material F at a relatively shallow surface as shown in the figure so as not to cut off excessively, and then use a cutter or the like to leave behind (the hatched portion). I took the troublesome procedure of removing.
[0006]
Furthermore, if the heat transfer housing 4 'is not maintained at an appropriate temperature, the foam material F cannot be melted and cut well, for example, the foam material F generates smoke containing bad odor. It is necessary to adjust the voltage applied to the heating wire in consideration of the speed at which the material F is cut off. However, for this purpose, it is necessary to interrupt the work once and go to a direct transformer near the power source (not shown) located away from the operator, which is very troublesome and reduces work efficiency.
[0007]
Therefore, in view of the above problems, the present invention is a foam material cutout capable of forming a recessed groove including oblique machining at the side end portion of the structural sandwich panel efficiently with less electric power than before and without leaving the foam material. It is an object of the present invention to reduce the labor for processing a structural sandwich panel by providing the apparatus, thereby reducing the cost and improving the safety of housing construction using the structural sandwich panel.
[0008]
[Means for Solving the Problems]
That is, the invention according to claim 1 is an apparatus for partially cutting off the side edges of the foam material in a structural sandwich panel in which both surfaces of a foam material as a core material are sandwiched between structural surface materials, A heat transfer housing that has a built-in main body for an operator to hold and operate, and a heating wire linked to a power source, and protrudes from the tip of the main body. In a foam cutting device comprising: a left and right vertical rod and a horizontal rod connecting the lower ends thereof; and a guide jig fixed slidably to the left and right vertical rods; Horizontal scissors are formed in a scissors shape that does not cut off the foam material at the corners thereof, and the heat transfer housing then passes the heating wire disposed at a position that comes into contact with the foam material first. The cross-sectional structure to be held by the holding body It is foam coring device according to claim.
[0009]
As described above, according to the foam material cutting device including the heat transfer casing in which the left and right vertical scissors and the horizontal scissors are formed in a scissors shape that does not leave the foam material at the corners thereof, the structural face material Thus, it is possible to form a complete recessed groove that does not leave an uncut portion at the corner between the foam and the foam material at one time. In addition, the portion of the heat transfer housing that is heated to melt and cut the foam material is limited to only the heating wire disposed at the position that comes into contact with the foam material first, and the heating wire is restricted to the other portions. According to the foam cutting device provided with the heat transfer housing configured as a holding body to be held, it is only necessary to heat the heating wire without heating the entire heat transfer housing, and the foam material can be generated with less power than before. It can be cut out.
[0010]
On the other hand, the invention described in claim 2 is for partially cutting without leaving the side end portions of the foam material in the structural sandwich panel in which both surfaces of the foam material as the core material are sandwiched by the structural surface material. An apparatus comprising a main body for an operator to hold and operate, and a heating wire linked to a power source, and protruding from the tip of the main body, each structural surface A guide jig fixed to the right and left vertical rods in a slidable manner in parallel with the inclined rods, having left and right vertical rods having different lower end heights respectively in contact with the inner surface of the material. And the heat transfer housing has a cross-sectional configuration in which the heating wire disposed at a position where the heat transfer housing comes into contact with the foam material first is held by a holding body from behind. A cutting device.
[0011]
As described above, according to the foam material cutting device in which the parallelogram is formed by the left and right vertical rods, the inclined rods, and the guide jig, the side edge of the structural sandwich panel is used as a roof panel or the like. It can be cut obliquely without leaving any part. In addition, the portion of the heat transfer housing that is heated to melt and cut the foam material is limited to only the heating wire disposed at the position that comes into contact with the foam material first, and the heating wire is restricted to the other portions. According to the foam cutting device provided with the heat transfer housing configured as a holding body to be held, it is only necessary to heat the heating wire without heating the entire heat transfer housing, and the foam material can be generated with less power than before. It can be cut out.
[0012]
The invention according to claim 3 is the invention according to claim 1 or 2, wherein the rear portion of the holding body is narrower than the front portion of the holding body holding the heating wire. It is characterized by being formed.
[0013]
Thus, if the rear part of the holding body is formed to be narrower than the front part of the holding body holding the heating wire, the foamed material after being melted is caught on the holding body. Since it becomes difficult and the frictional resistance at the time of work becomes small, a foam material can be cut off more smoothly.
[0014]
According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the main body portion includes a voltage adjusting means for adjusting a voltage applied to the heating wire. It is characterized by that.
[0015]
As described above, according to the foam cutting device provided with the voltage adjusting means integrally with the main body portion, the temperature of the heating wire can be adjusted by the operator by adjusting the voltage at hand even during the operation, so that the work efficiency is improved. As well as improving melting, it is possible to prevent poor melting and overheating of the foam material.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description, the same reference numerals are used for the same elements, and redundant descriptions are omitted.
[0019]
<Embodiment 1>
FIG. 1 is a perspective view showing an embodiment of a foam material cutting device according to the present invention. The foam material cutting device 1 shown in FIG. 1 is a side end of a foam material F in a structural sandwich panel P in which both surfaces of a foam material F (for example, foamed polystyrene) as a core material are sandwiched between structural surface materials B and B. It is an apparatus for partly cutting the part, and comprises a main body part 2, a guide jig 3, and a heat transfer housing 4. The heat transfer housing 4 of the foam cutting device 1 has a built-in heating wire linked to a power cord 5 extending from a power source (not shown), and the heating wire generates Joule heat to heat the heat transfer housing 4. Is done. The operator holds the main body 2 by hand, and the foam material in the direction of the arrow (in front of the operator) with the lower surface of the guide jig 3 in contact with the upper end surfaces of the structural surface materials B, B By sliding the cutting device 1 and pressing the heated heat transfer housing 4 against the foam material F, this can be cut out to form a recessed groove at the upper end of the structural sandwich panel P (FIG. 2). (See (a)).
[0020]
Here, the heat transfer housing 4 of the foam cutting device 1 has a different shape from the heat transfer housing 4 'of the conventional foam cutting device 1'. That is, as shown in FIG. 2 (b), the vertical rods 4a, 4b and the horizontal rod 4c of the heat transfer casing 4 of the foam material cutting device 1 form a bowl shape when viewed from the front, The outer angles are all formed to be 270 °. This is because when the foamed material F is cut out, a completely recessed groove without any uncut portion is formed, thereby eliminating the need to remove the uncut portion using a cutter or the like later.
[0021]
Moreover, as shown to Fig.3 (a), the heat-transfer housing | casing 4 of the foam cutting device 1 has the cross-sectional structure which held the heating wire 6 with the heating wire holding tool 7 from the back. As long as the purpose of cutting off the foam material F is achieved, it is not necessary to heat the entire cross section of the heat transfer housing 4 ′ unlike the conventional foam material cutting device 1 ′. This is because it is sufficient to heat only the portion that comes into contact with the material F first. In this heat transfer housing 4, current does not flow through the entire cross section, but current flows only through the heating wire 6 excluding the heating wire gripping tool 7, so that the foam material F is cut with much lower power than in the prior art. be able to. Further, the heating wire holding tool 7 has a minimum width that is necessary for holding the heating wire 6 as shown in the figure. This is because if the width of the unheated part is large, the part becomes an obstacle and the foam material F cannot be cut off smoothly.
[0022]
Furthermore, as shown in FIG. 5B, it is more effective when the rear part of the heating wire holding tool 7 of the heat transfer housing 4 is formed to be narrower than the front part. According to the foam material cutting device 1 including the heat transfer housing 4 formed in this manner, the foam material F after being melted is less likely to be caught on the heating wire gripping tool 7, and the frictional resistance during work is reduced. This is because the foam material can be cut off more smoothly.
[0023]
As shown in FIG. 1, a voltage adjustment dial 8 serving as a voltage adjusting means for adjusting a voltage applied to the heating wire is provided at the front end of the main body 2 of the foam material cutting device 1. By turning the voltage adjustment dial 8 clockwise or counterclockwise, the voltage applied to the heating wire 6 can be easily adjusted even during work, and the foam material F is always melted at an appropriate temperature. Since it can be cut off, the working efficiency is improved, and it is possible to prevent poor melting and overheating of the foam material.
[0024]
In addition, this invention is not limited to this embodiment, About the shape, structure, etc. of each member, such as the main-body part 2, the guide jig 3, and the heat-transfer housing 4, it can change and comprise suitably. However, it goes without saying that the function required for each member is satisfied.
[0025]
<Embodiment 2>
FIG. 4 is an enlarged view of a main part showing another embodiment of the foam material cutting device according to the present invention, and corresponds to FIG. The heat transfer casing 4A of the foam cutting device 1A shown in the figure has left and right vertical rods 4Aa and 4Ab having different lower end heights, and an inclined rod 4Ac that connects the lower ends thereof. And of course, the outer periphery of the corners of the vertical ridge 4Aa and the inclined ridge 4Ac and the outer periphery of the corner of the vertical ridge 4Ab and the inclined ridge 4Ac are formed in an angular shape so that the foam material F is not left uncut.
[0026]
The guide jig 3A is slidably fixed to the left and right vertical rods 4Aa and 4Ab so as to be parallel to the inclined rod 4Ac. Specifically, as shown in the figure, the bolt hole 3Aa of the guide jig 3A is formed as a long hole, and by using this, the guide jig 3A is obliquely mounted on the left and right vertical rods 4Aa and 4Ab with bolts. It can be tightened and fixed. Therefore, the side end of the foam material F can be cut obliquely so as not to leave uncut portions while sliding the guide jig 3A along the upper end surface of the structural face material B cut obliquely in advance. This can also be applied when the sandwich panel P is used as a roof panel or the like. Here, the guide jig 3A having the bolt hole 3Aa shown in the figure has substantially the same shape as the guide jig 3 shown in FIG. As described above, the cost can be reduced as a whole by using common parts as much as possible regardless of the end portion processing mode of the structural sandwich panel P. However, the guide jig 3A may have a shape different from that of the guide jig 3 as long as it satisfies the requirement of being slidably fixed to the left and right vertical bars 4Aa and 4Ab so as to be parallel to the inclined bar 4Ac. Of course.
[0027]
In addition, this invention is not limited to this embodiment, About the shape, structure, etc. of each member, it can change and comprise suitably. However, it goes without saying that the function required for each member is satisfied.
[0028]
【The invention's effect】
As described above, according to the foam material cutting device according to claim 1, it is possible to form a complete recessed groove that does not leave an uncut portion at the corner between the structural surface material and the foam material at one time. Therefore, it is possible to save the trouble of removing the uncut residue by using a cutter or the like later, reduce the labor of processing the structural sandwich panel, and thereby reduce the cost and improve the safety of housing construction using the structural sandwich panel. it can. In addition, since the foam material can be cut out by heating only the heating wire without raising the temperature of the entire heat transfer housing, the foam material can be cut out with less power than before, and the sandwich panel for structure It is possible to reduce the cost of processing the side end portion.
[0029]
On the other hand, according to the foam cutting apparatus according to claim 2, since the parallelogram is formed by the left and right vertical ridges, the inclined ridges and the guide jig, the structural sandwich panel is used as a roof panel or the like. Further, the side end portion can be cut obliquely without leaving the side end portion, and the cost of processing the side end portion of the structural sandwich panel can be reduced. In addition, since the foam material can be cut out by heating only the heating wire without raising the temperature of the entire heat transfer housing, the foam material can be cut out with less power than before, and the sandwich panel for structure It is possible to reduce the cost of processing the side end portion.
[0030]
Further , according to the foam cutting device according to claim 3, the rear part of the holding body is formed to be narrower than the front part of the holding body holding the heating wire. The foamed material can be cut off smoothly, and the cost for processing the side edges of the structural sandwich panel can be reduced.
[0031]
Furthermore, according to the foam cutting device according to claim 4, since the temperature of the heating wire can be adjusted by the operator by adjusting the voltage at hand even during work, the work efficiency is improved and the foam material is improved. Melting failure and overheating can be prevented, and cost reduction and safety improvement of the side edge processing of the structural sandwich panel can be achieved.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of a foam cutting device according to the present invention.
FIG. 2 is an enlarged view of a main part of the foam material cutting device shown in FIG. 1;
FIG. 3 is a view showing a cross-sectional configuration example of a heat transfer housing.
FIG. 4 is an enlarged view of a main part of another embodiment of the foam cutting device according to the present invention.
FIG. 5 is a perspective view showing a conventional foam cutting device.
FIG. 6 is a partial side view showing a side end portion of a structural sandwich panel in which a foam material is cut using a conventional foam material cutting device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Foam material cutting device 1A ... Foam material cutting device 1 '... Foam material cutting device 2 ... Main-body part 3 ... Guide jig 3A ... Guide jig 3Aa ... Bolt hole 4 ... Heat-transfer housing 4a ... Vertical rod 4b ... Vertical rod 4c ... Horizontal rod 4A ... Heat transfer housing 4Aa ... Vertical rod 4Ab ... Vertical rod 4Ac ... Inclined rod 4 '... Heat transfer rod 4c' ... Horizontal rod 5 ... Power cord 6 ... Heat wire 7 ... Heat wire retainer 8 ... Voltage Adjustment dial B ... structural face material P ... structural sandwich panel F ... foam material

Claims (4)

A device for partially cutting off the side edges of the foam material in a structural sandwich panel in which both surfaces of a foam material as a core material are sandwiched between structural surface materials, for an operator to grasp and operate. A heat transfer housing that has a heat generating wire linked to a power source and projects from the front end of the main body, the left and right vertical rods contacting the inner surface of each structural face material, and their lower ends A guide jig fixed to the left and right vertical rods slidably,
In a foam cutting device comprising:
The left and right vertical scissors and horizontal scissors are formed in a scissors shape that does not leave the foamed material at their corners ,
The foam material cutting device according to claim 1, wherein the heat transfer housing has a cross-sectional configuration in which the heating wire disposed at a position that comes into contact with the foam material first is held by a gripping body from behind . An apparatus for partially cutting the foamed material in the sandwich panel for structure in which both sides of the foamed material as the core material are sandwiched by the structural surface material, without leaving the side edges of the foamed material,
A heat transfer housing that has a built-in main body for an operator to hold and operate, and a heating wire linked to a power source, and protrudes from the tip of the main body. A left and right vertical rod having different lower end heights, and an inclined rod connecting the lower ends thereof, and a guide jig slidably fixed to the left and right vertical rods in parallel with the inclined rod. ,
The foam material cutting device according to claim 1, wherein the heat transfer housing has a cross-sectional configuration in which the heating wire disposed at a position that comes into contact with the foam material first is held by a gripping body from behind . The foam material according to claim 1 or 2 , wherein a rear portion of the holding body is formed to be narrower than a front portion of the holding body holding the heating wire. Cutting device. It said body portion comprises a voltage adjustment means for adjusting the voltage applied to the heating wire, it foam coring device according to any one of claims 1 to 3, characterized in.

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