JP2005016257A - Cutting machine for roof material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To properly cut a metallic roof material as an object to be cut, even if it is a thick metallic roof material wherein the upside of a foam is covered with a metallic plate. <P>SOLUTION: In a cutting machine for the roof material, the side of one end of the movable blade 4 is supported on the side of one end of the fixed blade 3 freely swingably around a supporting shaft 12, so that the metallic roof material can be cut in the state of being sandwiched between the fixed blade 3 and the movable blade 4; a control lever 15 for performing an operation for swinging the movable blade 4 is protrusively provided on the side of the other end of the movable blade 4; and an inclined face 22 is provided on the other side of the movable blade 4 in the thickness direction of the fixed blade 3 in such a manner that the cutting edge side of the fixed blade 3 is made gradually thinner toward an edge 3a on the cutting edge side. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a roof material cutting machine for cutting metal roof materials and the like.
[0002]
[Prior art]
As shown in FIGS. 13 and 14, the conventional roof material cutting machine for cutting a metal roof material is movable so as to cut the metal roof material 63 with a movable blade 61 and a fixed blade 62 therebetween. There is one in which one end side of the blade 61 is supported on one end side of the fixed blade 62 so as to be swingable around the support shaft 65 (in particular, there is no known document (a general cutting machine for cutting a metal plate is used for a roof material at a construction site). Used as a cutting machine)).
[0003]
[Patent Document 1]
JP-A-9-168994 [Patent Document 2]
JP-A-8-118285 [0004]
[Problems to be solved by the invention]
As shown in FIG. 11, FIG. 12, or FIG. 14, the metal roof material 63 has a thick type formed by covering a foam 68 having a high heat insulating property with a metal plate 69. When the material 63 is cut with a roof material cutting machine, the conventional roof material cutting machine has a fixed blade 62 having a long and thin rectangular parallelepiped shape as shown in FIG. Since it was formed thick like the base side, the foam 68 of the metal roof material 63 sandwiched between the fixed blade 62 and the movable blade 61 could not escape below the fixed blade 62. There is a problem that the foam 68 is crushed between the fixed blade 62 and the movable blade 61 and the metal roof material 63 cannot be cut well.
[0005]
In view of the above-mentioned problems, the present invention enables the metal roof material to be cut to be cut well even if it is a thick metal roof material in which the upper side of the foam is covered with a metal plate. is there.
[0006]
[Means for Solving the Problems]
The technical means of the present invention for solving this technical problem is that one end side of the movable blade 4 is placed on one end side of the fixed blade 3 so as to cut the metal roof material between the fixed blade 3 and the movable blade 4. In the roof material cutting machine, which is supported so as to be swingable around the support shaft 12, and an operation lever 15 for swinging the movable blade 4 is provided on the other end side of the movable blade 4.
An inclined surface 22 is provided on the side opposite to the movable blade 4 in the thickness direction of the fixed blade 3 so that the blade edge side of the fixed blade 3 gradually becomes thinner toward the edge side edge 3a.
[0007]
Further, another technical means of the present invention is a position where the table 20 that receives the metal roof material to be cut is retracted to the closed side in the movable blade swinging direction with respect to the edge 3a of the fixed blade 3 from the blade edge side edge 3a. Is located at the point.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described according to the illustrated embodiments.
1 to 3, the roof material cutting machine 1 includes a frame 2, a fixed blade 3, and a movable blade 4. The frame 2 is formed in a plate shape that is long in the front-rear direction, a pair of front and rear stands 5 are attached to the lower end of the frame 2, and anti-slip members 6 such as rubber are fixed to the left and right ends of each stand 5. Is configured to be installed via an anti-slip member 6.
[0009]
The fixed blade 3 is formed in an elongated rectangular plate shape, fixed to the front end side (one end side) of the frame 2 by a plurality of fixing bolts 9, and the blade tip side of the fixed blade 3 protrudes upward from the frame 2.
The movable blade 4 is formed in an elongated rectangular plate shape like the fixed blade 3, and is set to have substantially the same length as the fixed blade 3. The length of the fixed blade 3 and the movable blade 4 is made of a metal roof material. In order to reduce the force required for cutting, the width is set to be considerably shorter than the width of the metal roof material 63 which is the object to be cut shown in FIGS. The metal roof material 63 shown in FIGS. 11 and 12 is a thick metal roof material in which a foam 68 having a high heat insulating property is covered with a metal plate (steel plate) 69.
[0010]
The front end side (one end side) of the movable blade 4 and the front end side (one end side) of the fixed blade 3 are superposed in the thickness direction, and the metal roof material 63 that is an object to be cut is formed by the movable blade 4 and the fixed blade 3. The front end side (one end side) of the movable blade 4 is supported on the front end side (one end side) of the fixed blade 3 so as to be swingable around the support shaft 12 by the connection bolt 11 so as to be sandwiched and cut. The head 11 a protrudes from the outer surface of the movable blade 4 to the side opposite to the fixed blade 3.
On the other end side of the movable blade 4, an operation lever 15 for swinging the movable blade 4 is provided. A grip 16 is provided at the rear end portion (free end portion) of the operation lever 15. On the other end side of the fixed blade 3, a dummy blade 17 is extended and provided so as to be continuous with the fixed blade 3. As shown in FIG. 4, the dummy blade 17 is fixed to the frame 2 by a plurality of mounting bolts 18, and the upper end of the dummy blade 17 is set to the same height as the upper end of the fixed blade 3. The outer edge 17a is in line with the outer edge A of the cutting edge side edge 3a of the fixed blade 3.
[0011]
A table 20 for receiving a metal roof material 63 that is an object to be cut is fixed to the frame 2 by mounting bolts 21. The table 20 is disposed at a lower position than the cutting edge side edge 3a of the fixed blade 3 and retracted to the closing side in the movable blade swinging direction. The step H (shown in FIG. 1) from the edge 3a of the fixed blade 3 to the table 20 is the thickness of the thickest portion of the foam 68 of the thick metal roof material 63 that is the object to be cut shown in FIG. The length substantially corresponds to T.
As shown in FIGS. 5 to 7, an inclined surface 22 is provided over the entire length of the fixed blade 3 on the opposite side (frame 2 side) to the movable blade 4 in the thickness direction of the fixed blade 3. The cutting edge side of the fixed blade 3 is gradually thinner toward the cutting edge side edge 3a. The inclined surface 22 is formed from the cutting edge side edge 3 a of the fixed blade 3 to the upper middle portion, and the lower end of the inclined surface 22 substantially coincides with the upper end of the frame 2.
[0012]
On one end side of the movable blade 4, a pressing body 24 that presses one side of the cut metal roof material 63 toward the closing side in the movable blade swinging direction is provided. As shown in FIG. 8, the pressing body 24 is formed by bending a metal plate 26 formed by press molding or the like at bending portions a and b, and forming a Z shape as shown in FIGS. 9 and 10. The pressing body 24 includes an engaging portion 27, an attachment portion 29 having a mounting hole 28, and a guide portion 30. The engaging portion 27 of the pressing body 24 is engaged with the upper end surface on the front end side of the movable blade 4, and the attachment portion 29 is disposed so as to follow the outer surface of the movable blade 4, and is connected to the connection hole 28 inserted through the mounting hole 28. Both the movable blade 4 and the fixed blade 3 are fastened together by bolts 18, whereby the pressing body 24 is supported by the fixed blade 3 so as to swing around the support shaft 12 together with the movable blade 4. The guide part 30 protrudes from the outer surface of the movable blade 4.
[0013]
The guide portion 30 has a rectangular plate shape, and is disposed on the lower side of the head (projecting portion) 11 a of the mounting bolt 11 so as to be inclined in the forward downward direction with respect to the movable blade 4. The lower surface of the guide portion 30 is a guide surface 31 that is inclined so as to gradually shift from the connecting bolt 11 to the closed side in the movable blade swinging direction toward the front end side (one end side) end portion of the movable blade 4. The guide surface 31 guides one side of the cut metal roof material 63 by pressing it toward the closed side (lower side in the illustrated example) in the movable blade swinging direction from the protruding portion 11a of the connecting bolt 11. ing.
[0014]
As shown in FIG. 7, a heating means 33 having an electric heating coil or the like is incorporated in the lower part of the fixed blade 3, and a current is supplied from a power supply (not shown) to the electric heating coil or the like by a switch operation or the like, thereby heating the heating means 33. The fixed blade 3 is configured to be heated to about 150 ° C. (100 ° C. to 180 ° C. which is not lower than the styrene melting temperature and not higher than the blade alteration temperature).
A hook member 35 is attached to the rear end portion of the frame 2 with a butterfly bolt or the like. By hooking the hook member 35 on the grip 16 of the operation lever 15, the movable blade 4 is swung to the closed side. In this state, it can be engaged and held.
[0015]
According to the above embodiment, when the thick metal roof material 63 is cut, the hook member 33 is removed from the grip 16 of the operation lever 15 and the operation lever 15 is swung upward (opening side). 11 and 12, the metal roof material 63 is inserted between the fixed blade 3 and the movable blade 4 with the metal plate 69 facing upward, and the operation lever 15 is moved downward (closed). The metal roofing material 63 is sandwiched between the fixed blade 3 and the movable blade 4, and then the operation lever 15 is swung upward to move the movable blade 4 upward. After swinging, the metal roof material 63 in the middle of cutting is moved forward and inserted deeply between the fixed blade 3 and the movable blade 4, and the operation lever 15 is swung downward again to move the solid blade 3. The metal roofing material 63 is sandwiched between the movable blade 4 and the movable blade 4, and thereafter the same cutting operation is repeated to obtain a fixed blade. And between the movable blade 4 may be cut metal roofing 63.
[0016]
At this time, since the inclined surface 3a is provided on the fixed blade 3, and the blade edge side of the fixed blade 3 gradually becomes thinner toward the edge 3a on the blade edge side, the foam 68 of the metal roof material 63 is fixed. The crushing between the blade 3 and the movable blade 4 is eliminated, and the foam 68 is moved with the fixed blade 3 before the upper metal plate 69 is cut between the fixed blade 3 and the movable blade 4. It can be pushed well between the blade 4 and when the metal plate (steel plate) 69 is cut between the fixed blade 3 and the movable blade 4, the foam 68 does not get in the way, and the metal roof material 63 is removed. It can cut well.
[0017]
Further, since there is a step H between the blade edge side edge 3 a of the fixed blade 3 and the table 20, when cutting the metal roof material 63, the upper metal plate 69 is placed between the fixed blade 3 and the movable blade 4. Before cutting, the foam 68 pushed between the fixed blade 3 and the movable blade 4 can be released onto the lower table 20, and the metal plate 69 can be removed without the foam 68 getting in the way. It can cut well.
When the metal roof material 63 being cut is moved forward and inserted deeply between the fixed blade 3 and the movable blade 4, the metal roof material 63 being cut is moved with respect to the fixed blade 3 and the movable blade 4. When moved to the front side, one side (movable blade 4 side) of the cut metal roof material 63 is pressed downward by the pressing body 24, guided by the guide surface 31 of the pressing body 24, and the protrusion of the mounting bolt 11. Since the metal roof material 63 is guided below the portion 11a, one side (movable blade side) and the other side (fixed blade side) of the cut metal roof material 63 are opened up and down, and the metal roof in the middle of cutting. The material 63 does not hit the protrusion 11 a of the mounting bolt 11, and the metal roof material 63 in the middle of cutting is fed smoothly and smoothly to the front side, and the metal roof material 63 is inserted between the fixed blade 3 and the movable blade 4. Can take the metal roofing material 63 takes time It not can be easily cut.
[0018]
In addition, since the dummy blade 17 is provided, when the metal roof material 63 is cut forward, the line through which the blade edge of the fixed blade 3 passes even though the length of the fixed blade 3 is considerably shorter than the width of the metal roof material 63. Since it can be known by the dummy blade 17, the metal roof material 63 can be easily aligned with the cutting edge line of the fixed blade 3, and the metal roof material 63 can be cut easily and accurately.
Further, when cutting the metal roof material 63, the fixed blade 3 is heated to about 150 ° C. by the heating means 33 to cut the metal roof material 63, so that the metal roof material 63 is fixed by the fixed blade 3 at the time of cutting. The foam 68 can be melted by heat, so that the foam 68 is made of fine debris by crushing the foam 68 of the metal roof material 63 between the solid blade 3 and the movable blade 4 as in the prior art. And scattering can be prevented.
[0019]
In the embodiment, when the thick metal roof material 63 is cut, the metal roof material 63 is fixed to the fixed blade 3 and the movable blade with the metal plate 69 facing upward and the foam 68 facing downward. Since the fixed blade 3 is heated by the heating means 33 in order to insert and cut between the metal plate 4 and the metal plate 69, the metal plate 69 faces downward and the foam 68 faces upward. When the metal roof material 63 is inserted and cut between the fixed blade 3 and the movable blade 4, the movable blade 4 may be heated by the heating means 33. Further, both the fixed blade 3 and the movable blade 4 are heated by the heating means 33, and the metal roof material 63 is inserted between the fixed blade 3 and the movable blade 4 with the metal plate 69 facing upward. The metal roofing material 63 is inserted between the fixed blade 3 and the movable blade 4 with the foam 68 facing upward, so that the cutting can be performed by both methods. Good.
[0020]
Moreover, in the said embodiment, the inclined surface 31 is on the opposite side to the movable blade 4 in the thickness direction of the fixed blade 3 so that the blade edge side of the fixed blade 3 is gradually thinned toward the blade edge edge 3a. Although it is provided, the movable blade 4 may be provided with a similar inclined surface so that the blade edge side of the movable blade 4 gradually becomes thinner toward the edge of the blade edge.
Moreover, in the said embodiment, although the thick metal roof material 63 which covers the foam 68 with high heat insulation with the metal plate (steel plate) 69 with the cutting machine 1 for roof materials is cut | disconnected. The metal roof material to be cut is not limited to such a thick metal roof material, but a thin metal roof material composed only of a metal plate or the like may be cut by the roof material cutting machine 1. It is.
[0021]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, even if the metal roof material which is a to-be-cut object is a thick metal roof material which covers the upper side of a foam with a metal plate, it can cut | disconnect favorably.
[Brief description of the drawings]
FIG. 1 is a perspective view of a cutting machine showing an embodiment of the present invention.
FIG. 2 is a side view of the cutting machine.
FIG. 3 is a plan view of the cutting machine.
4 is a cross-sectional view taken along line AA in FIG.
FIG. 5 is a plan view of the fixed blade.
FIG. 6 is a side view of the fixed blade.
FIG. 7 is a sectional view of the fixed blade.
FIG. 8 is a development view of the metal plate before the presser body is bent and formed.
FIG. 9 is a side view of the pressing body.
FIG. 10 is a front view of the pressing body.
FIG. 11 is a perspective view of the state in which the operation of cutting the metal roof material is viewed from the outer surface side.
FIG. 12 is a perspective view of a state in which the operation of cutting the metal roof material is viewed from the front side.
FIG. 13 is a perspective view of a roofing material cutting machine showing a conventional example.
FIG. 14 is a sectional view of a roofing material cutting machine showing an operation of cutting the metal roofing material.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Roof material cutting machine 3 Fixed blade 4 Movable blade 11 Connecting bolt 11a Protrusion part 12 Support shaft 15 Operation lever 17 Dummy blade 20 Table 22 Inclined surface 24 Holding body 31 Guide surface 33 Heating means 63 Metal roof material 68 Foam 69 Metal plate

Claims (2)

One end of the movable blade (4) swings around one end of the fixed blade (3) around the support shaft (12) so that the metal roofing material is sandwiched between the fixed blade (3) and the movable blade (4). In a roof material cutting machine that is freely supported and is provided with an operation lever (15) for swinging the movable blade (4) on the other end side of the movable blade (4).
An inclined surface (22) on the side opposite to the movable blade (4) in the thickness direction of the fixed blade (3) so that the blade edge side of the fixed blade (3) gradually becomes thinner toward the edge (3a). ) Is provided. A roofing material cutting machine. The table (20) for receiving the metal roofing material, which is a workpiece, is disposed at a position retracted to the closing side in the movable blade swinging direction from the blade edge (3a) of the fixed blade (3). A cutting machine for roofing materials.

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