JPH0929702A - Ruler for hand motor-operated cutting tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ruler for a hand motor-operated cutting tool capable of simply conducting the replacing operation of a caul even if a complicated replacing operation is not executed. SOLUTION: This ruler for a hand motor-operated cutting tool comprises a caul member 21 having a linearly formed cutting side 22, and a ruler holder 20 detachably mounted with the member 21 and placed on the upper surface of a material to be cut to hold the side 22 of the member 21 along the cutting line of the material to be cut. A holder 24 for supporting the member 21 of the ruler for the tool is provided to sandwich the member 21 therebetween as the holder 24 having a groove for supporting the member 21 so that the replacement of the member 21 can be facilitated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ruler for a hand-held electric cutting tool used for cutting a material such as wood along a cutting line with an electric cutting tool such as an electric circular saw or a jigsaw.

[0002]

2. Description of the Related Art Up to 90% of cutting work for construction materials such as door frames and window frames and exterior decoration materials such as rafters and columns is a right angle, that is, a straight line with respect to a reference side. It consists of cutting work.

By the way, the above cutting work is carried out by using a hand-held electric cutting tool, for example, an electric circular saw, a jigsaw, or the like. However, with such a hand-held electric cutting tool, the cutting edge of the hand-held electric cutting tool is slightly blurred. However, it is difficult for even a skilled person to cut straight along the cutting line.

Therefore, it has been conventionally practiced to place a fixed tree on the upper surface of a material to be cut such as wood, and to cut along the cutting line by placing the fixed tree along the base of the bottom surface of the electric cutting tool. There is.

However, in the method of using a fixed tree as described above, since there is a distance between the base end of the hand-held electric power tool which is placed along the fixed tree and the cutting blade, the fixed tree has the cutting blade on the cutting line. It is necessary to put a register at a position that is separated from the cutting line by the distance between the base end and the cutting blade so that it is difficult to make a register, so set the fixed tree as described above. Even if it is cut by using it, there is a problem that an error occurs between the cut surface actually cut and the cutting line drawn on the material to be cut.

When cutting a material to be cut using the hand-held electric cutting tool as described above, the material to be cut is pressed by the bottom surface of the base of the hand-held electric cutting tool to perform the cutting. The cutting blade for cutting cuts the material to be cut through an opening provided in the base. Therefore, at the time of cutting, the edge of the cutting blade is not pressed by the opening, and when the cutting blade moves from the bottom to the top, the cut edge of the material to be cut is rolled up together with the cutting blade, and the problem that whiskers or whiskers easily occur was there.

As one method for solving this problem, FIG.
And there is a fixed tree shown in FIG.

This ruler has a ruler member 4 for guiding the base 2 mounted on a backing plate 3 on which a base 2 of a hand-held electric tool 1 is placed. As shown in FIG. By making the distance from the guide surface 5 to one side 6 of the backing plate 3 and the distance from the cutting blade 7 of the hand-held power tool 1 to the base end face 8 the same, one side 6 of the backing plate 3
Along the cutting line 9 and the backing plate 3 along the cutting line 9
When the hand-held power tool 1 is placed on and the base end surface 6 of the power tool is moved along the guide surface 5 of the ruler member 4, the material 10 to be cut can be cut along the cutting line 9.

That is, the cut edge of the material 10 to be cut is pressed by the contact plate 3 to prevent the cut edge 7 from curling up the cut edge, thereby preventing the formation of whisker and whiskers.

By the way, in the fixed wood shown in FIGS. 7 and 8 above, in order to prevent the cutting edge from flaking or whiskers, the backing plate 3 is placed above the cutting edge just before the cutting blade 7 of the hand-held electric power tool 1. If the tool 1 is pressed and shakes due to vibration of the tool 1 during cutting, the backing plate 3 may be cut together with the material 10 to be cut. In such a case, the cut makes it impossible to press the cut edge of the material 10 to be cut, resulting in burrs or whiskers at the cut edge.

As a method for solving the problem, FIG.
As shown in (a) and (b), the backing plate 3 is a member that can be cut, and the ruler member 4 is provided with a long hole 12 so that the ruler member 4 can be pushed through the long hole 12 with the bolt 13. Some are fixed at 3. In this case, when the backing plate 3 is cut, the ruler member 4 is moved as shown by the arrow.
By shifting the side plate 6 in the opposite direction, the shortened pad plate 3 is lengthened. Then, the cutting tool 1 is placed on the lengthened pad plate 3, the base 2 is moved along the guide surface 5 of the ruler member 4, and the pad plate 3 is cut, whereby the guide surface of the ruler member 4 is cut. In parallel with 5, the side edge 6 of the backing plate 3 having the same distance from the cutting edge 7 of the cutting tool 1 to the base end surface 8 as the guide surface 5 can be formed again.

However, in the case where the above-mentioned ruler member 4 is provided with the elongated hole 12 and the ruler member 4 is fixed to the contact plate 3 by the bolt 13, the length of the contact plate 3 corresponds to the length of the elongated hole 12. Since it can only be made long, it can be used only a few times, and when the length reaches the length of the long hole 12, it becomes impossible to make the pad plate 3 longer,
Although the ruler member 4 can be used, it has to be disposable along with the backing plate 3, which is a waste of much.

At this time, conversely, it is conceivable that, for example, the long hole 12 is provided on the side of the contact plate 3 and the ruler member 4 is fixed and the contact plate 12 is moved. However, even in this case, the contact When the oblong hole 12 of the plate 3 reaches the one side 6, the end face of the one side 6 can be cut by the oblong hole 12, so that the contact plate 3 is moved only by the length from the cutting blade 7 to the base end face 8. I cannot use it.

Therefore, as in the case of FIG. 9, there is a problem in that the ruler member 4 must be disposed of despite its use.

Therefore, it is conceivable to prepare a replacement pad plate 3 having a mounting hole in the pad plate 3 and replace the pad plate 3 which is no longer usable.

[0016]

However, in the above replacement work, first, the bolt is removed from the ruler tree that cannot be used, the ruler member is removed from the ruler tree from which the bolt is removed, and the removed ruler member is removed. Has to be attached to a new backing plate, and the bolts must be inserted and tightened, so that there is a problem that complicated replacement work is required.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a ruler for a hand-held electric cutting tool, which enables easy replacement work of a backing plate.

[0018]

In order to solve the above problems, according to the present invention, a backing plate member having a straight cutting edge and a backing plate member to which the backing plate member is detachably attached are provided. And a ruler holder placed on the upper surface of the cut plate along the cutting line of the material to be cut along with the cutting line of the patch plate member, the ruler holder having a groove part for supporting the patch plate member, and The ruler portion is disposed on the upper surface of the backing plate member held by the groove portion of the holder portion, and has a guide surface with which the end surface of the base of the hand-held electric cutting tool abuts. A configuration is provided that is parallel to the cutting edge of the patch plate member along the same and the distance from the guide surface to the cutting edge of the patch plate is equal to the distance from the cutting edge of the hand-held electric tool to the base end surface. Adoption Than it was.

[0019]

In the ruler for a hand-held electric cutting tool having the above-described structure, a backing plate member is attached to the groove of the holder portion of the ruler holder for use.

That is, the ruler holder to which the backing plate member is attached is placed on the material to be cut, and the cutting side of the backing plate member is along the cutting line of the material to be cut. Then, the cutting tool is placed on the backing plate member along the cutting line and moved along the guide surface of the ruler portion to cut the object to be cut.
At this time, the guide surface of the ruler portion is parallel to the cutting side of the patch plate member along the line to be cut, and the distance from the guide surface to the cutting side of the patch plate member and the cutting edge of the handheld electric tool to the base end surface. It is possible to cut the material to be cut along the cutting line because it is provided so as to have the same distance. At this time, since the cutting edge is pressed while being pressed against the cutting edge of the pad plate member, the cutting edge is prevented from rolling up.

Further, at this time, for example, when the cutting edge of the electric tool is cut into the cutting edge of the caul plate member, the caul plate member is sandwiched by the groove of the holder portion, and therefore the caul plate member. After sliding in the direction of the cutting edge, the cutting tool is placed on the contact plate member and moved along the guide surface of the ruler, and the cut plate is parallel to the cutting line at the cut and the above contact plate from the guide surface. It is possible to re-form a cutting edge that makes the distance to the cutting edge of the same as the distance from the cutting blade of the hand-held electric tool to the end surface of the base.

On the other hand, when the contact plate member is slid and the cutting edges are repeatedly formed in this way, if the contact plate member becomes short and the cutting blade cannot be re-formed, re-forming cannot be performed. Remove the pad plate member from the groove and replace it with a new pad plate member. This replacement work is completed by inserting the backing plate member into the groove of the holder portion.

[0023]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an embodiment of a ruler (hereinafter, a ruler) for a hand-held electric cutting tool according to the present invention.

As shown in FIG. 1, this ruler comprises a ruler holder 20 placed on the upper surface of the material 10 to be cut and a backing plate member 21 detachably attached to the holder 20.

The backing plate member 21 is a hand-held electric cutting tool 1
For example, a wood plate or a resin plate that can be cut by an L-shaped member is formed into an L shape, and the lateral side of the L-shaped member, that is, the vertical side of reference numeral 22 in FIG. , L formed along the cutting line 11 of the material 10 to be cut as the cutting side 22 and formed at a right angle to the cutting side 22.
A vertical side of the shape, reference numeral 23 in FIG. 1, is provided with a plurality of notches S so as to be detachably attached to the ruler holder 20 as fitting sides 23 (the notches S will be described later). ).

The ruler holder 20 comprises a holder portion 24 and a ruler portion 25, and the holder portion 24 comprises a stopper portion 26 and a support portion 28 mounted above the stopper portion 26. The stopper portion 26 is formed by removing the upper surface of the square bar by the thickness of the backing plate member 21 while leaving the rising edge. On the other hand, the support portion 28 is formed by forming a long side of a rectangular plate body as a mounting side for the stopper portion 26, and linearly forming a side adjacent to the side formed as the mounting side as a protruding guide surface 5. In this embodiment, the linear guide surface 5 is in contact with the base end surface 6 of the electric cutting tool 1.
5 is assumed. Then, this support portion 28, as shown in the “II” cross section of FIG.
One end 2 of the stopper portion 26 where the cutting edge 22 of No. 1 is arranged
It is attached at a position separated from the base end surface 8 of the hand-held electric cutting tool 1 by the distance from the cutting edge 7 to the cutting blade 7.

Further, the mounting is performed by abutting the rear end of the support portion 28 against the rising of the upper surface of the stopper portion 26 and fixing it with the screw 30 so that the fitting side 23 of the pad plate member 21 is fitted. Mounted to form 31.

That is, as shown in the "II-II" sectional view of FIG. 3, a through hole 32 communicating with the support portion 28 and the stopper portion 26 is provided, and a nut 33 is provided on the stopper portion 26 side of the through hole 32. The screw 30 is inserted and inserted from the side of the support portion 28, which is the other side of the through hole 32 into which the nut 33 is inserted, and is fixed by engaging the inserted screw 30 and the nut 33. Therefore, when the screw 30 is tightened with a screwdriver, the width of the groove 31 is changed, and the clamping force can be adjusted. Also,
Since the support portion 28 is attached to the stopper portion 26 with the screw 30 as described above, the screw 30 is exposed in the groove 31, so that the position of the screw 30 exposed in the groove 31 and the fitting of the contact plate member 21. Notch S provided at joint 23
The position of is formed so as to be fitted when the pad plate member 21 is fitted into the groove 31. Therefore, as shown in FIG. 5, when the fitting side 23 of the contact plate member 21 is fitted into the groove 31, the end of the fitting side 23 comes into contact with the rising of the stopper portion 26, and the contact plate member 21 is moved into the groove 31. It is designed to be firmly clamped by.

Therefore, when the backing plate member 21 is held between the stopper portion 26 and the support portion 28 in this way,
The ruler portion 25 formed on the support portion 28 is disposed on the upper surface of the patch plate member 21, is parallel to the cutting side 22 of the patch plate member 21, and is parallel to the cutting side 22 and the guide surface 5 of the ruler section 25. Is the same as the distance between the cutting blade 7 and the base end surface 8 of the hand-held electric cutting tool 1.

At this time, since the width of the notch S of the fitting side 23 of the pad plate member 21 determines the length that can be slid when the pad plate member 21 becomes short during cutting, its width. Is appropriately adjusted according to the size of the backing plate member 21 and the like.

Further, the ruler portion 25 formed on the support portion 28
As shown in FIGS. 1 and 4, a stopper fitting 34 is provided at the tip of the pad, and the stopper fitting 34 is hung on the tip of the abutment plate member 21 and fixed with a screw to fix the abutment plate member 21. It is designed to prevent slipping out.

This embodiment is configured as described above. When using this ruler, first, the fitting side 23 of the pad plate member 21 is set in the groove 31 of the holder portion 24 of the ruler holder 20. The backing plate member 21 is attached to the ruler holder 20 by fitting (at this time, the holder member 2
The cutting edge 22 of the backing plate member 21 attached to the No. 4 is attached to a position along the cutting blade 7 of the electric cutting tool 1).

Next, the ruler holder 20 to which the backing plate member 21 is attached is placed on the material 10 to be cut, and the stopper portion 26 of the ruler holder 20 is provided on the side portion of the placed material 10 to be cut.
The cutting edge 22 of the backing plate member 21 to be cut 1
Along the cutting line 9 of 0. Then, as shown in FIG. 5, the electric cutting tool 1 such as a circular saw is placed on the backing plate member 21 along the cutting line 9, and the cutting tool is put on the support portion 28 of the ruler holder 20. 1 is moved along the guide surface 5 of the ruler portion 25. At this time, the guide surface 5
Is parallel to the cutting edge 22 of the patch plate member 21 along the cutting line 9, and is the distance from the guide surface 5 of the ruler member 25 to the cutting edge 22 of the patch plate member 21 and the cutting blade 7 of the hand-held electric tool 1. Since the distance from the base end surface 8 to the base end surface 8 is the same, the material 10 to be cut can be cut along the cutting line 9. At that time, just before the cutting line 9, the cutting is performed while being pressed against the cutting edge 22 of the pad plate member 21, so that the cutting blade 7 prevents the cutting edge from being rolled up, and the cutting edge does not have a whisper or a whisker. . Therefore, the cut end can be finished cleanly.

As described above, this ruler allows the cutting edge 7 of the hand-held electric cutting tool 1 to be positioned on the cutting line 9 only by making the cutting edge 22 of the pad plate member 21 along the cutting line 9 of the material 10 to be cut. Therefore, the hand-held electric cutting tool 1 can be easily positioned. Further, at that time, since the cutting is performed while the pressing plate member 21 presses the cutting surface, the cutting surface can be finished beautifully without producing whiskers or whiskers on the cut surface.

At this time, for example, when the hand-held electric cutting tool 1 is cut into the cutting side 22 of the pad plate member 21 due to the runout or the like, the pad plate member 21 is held by the holder portion 2.
Since it is sandwiched by the grooves 31 of 4, the pad plate member 21
Can be easily slid in the direction of the cutting edge 22. Therefore, after sliding the backing plate member 21,
The cutting tool 1 is placed on the backing plate member 21 and the ruler portion 25
When the backing plate member 21 is cut by moving it along the guide surface 5 of the above, the backing plate member 2 is cut from the guide surface 5 to the cut end.
Since it is possible to re-form the cutting side 22 that makes the distance to the cutting side 22 of 1 and the distance from the cutting blade 7 of the hand-held electric power tool 1 to the base end surface 8 repeated, the cutting of the workpiece 10 is repeated. It can be carried out.

On the other hand, when the formation of the cut side 22 of the contact plate member 21 is repeated in this manner, the notch S of the fitting side 23 of the contact plate member 21 abuts the screw 30 of the groove 31, and the contact plate member 21 is removed. In such a case, the pad plate member 21 that cannot slide is removed from the groove 31 and replaced with a new pad plate member 21. At this time,
This replacement can be performed with one touch since it is only necessary to fit the fitting side 23 of the new pad plate member 21 into the groove 31 of the holder portion 24.

Thus, the ruler holder 20
Since the contact plate member 21 is sandwiched by the groove 31 of the holder portion 24, the contact plate member 21 can be easily attached and detached with one touch.

In the embodiment, the stopper portion 26 and the supporting member 28 of the ruler holder 20 are fixed by the screw 30 inserted from the supporting member 28 side, but the present invention is not limited to this, and the stopper portion 26 of FIG. As shown in the sectional view of FIG. 3, the hexagon socket head cap screw 35 is fitted into the through hole 33 from the lower surface side of the stopper portion 26, and the through hole 3 of the supporting member 28 is inserted.
It is also possible to attach a tapped metal 2 to the threaded metal 36. In this way, the screws can be made invisible, and the appearance can be improved.

Further, in this embodiment, the holder portion 2
Although 4 is composed of the stopper portion 26 and the support member 28, the invention is not limited to this, and the stopper portion 26 and the support member 28 may be integrated, for example. In that case, if the holder portion 26 is made of elastic plastic or the like, it is not necessary to use screws. Further, at this time, when the screw is not used, it is not necessary to provide the cutout of the pad plate member.

[0041]

[Effects] The present invention is configured as described above, and the pad plate member is sandwiched by the groove provided in the holder portion of the ruler holder. Therefore, the pad plate member can be easily replaced, and the hand-held electric motor is convenient. A ruler for a cutting tool can be provided.

Further, even when the cut side of the pad plate member is cut at the time of cutting, the pad plate member is sandwiched by the groove, so that the pad plate member can be easily slid and held by hand. Workability is also good because the cutting edge can be formed by cutting with an electric cutting tool.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an embodiment.

FIG. 2 is a sectional view taken along the line II of FIG.

FIG. 3 is a sectional view taken along line II-II of FIG.

FIG. 4 is a sectional view taken along line III-III in FIG.

FIG. 5 is an explanatory view of the operation of the embodiment.

FIG. 6 is a waist sectional view showing another embodiment.

FIG. 7 is a perspective view of a conventional example.

FIG. 8 is a diagram illustrating the operation of a conventional example.

9A is a front view of a conventional example, and FIG. 9B is a sectional view taken along line I-I.

[Explanation of symbols]

 1 Hand-held power tool 2 Base of hand-held power tool 7 Cutting blade 8 Base end surface 9 Cutting line 10 Cutting material 20 Ruler holder 21 Patch plate member 22 Cutting edge 24 Holder part 25 Ruler part 31 Groove

Claims (1)

[Claims] 1. A backing plate member having a straight cutting edge, and the backing plate member removably attached,
The ruler holder is placed on the upper surface of the material to be cut and has a cutting line of the patch plate member along the cutting line of the material to be cut, and the ruler holder has a groove portion for supporting the patch plate member. And a ruler section having a guide surface arranged on the upper surface of the backing plate member held by the groove section of the holder section and contacting the end surface of the base of the hand-held electric cutting tool. It is provided parallel to the cutting edge of the patch plate member along the cutting line and so that the distance from the guide surface to the cutting edge of the above patch plate and the distance from the cutting edge of the hand-held electric tool to the base end surface are the same. A ruler for hand-held power tools that is characterized by