JPH08300303A - Parallel ruler for cutting tool - Google Patents

Abstract

PURPOSE: To be usable for the cutting work on a wide plate surface or the vicinity of a boundary between a wall and a floor by mountably providing a guide at a base upside down above the lower end face of the base while providing a protrusion at the guide. CONSTITUTION: When guide bars 3 are mounted at the base of a circular saw machine in the state that a vertical piece 7 provided on the one side of a guide 2 is directed down and the machine is moved while guiding the piece 7 to the reference end face of a material to be cut, linear cutting parallel to the reference end face can be conducted. When a caul 8 having a contact surface parallel to the piece 7 is clamped at the piece 7 by a screw 7, there is no fear of damaging the reference end face of the material to be cut. On the other hand, when cutting is conducted at the position where the reference end face is not obtained at the material side to be cut from the bottom of the base such as a wide plate surface or the position near the boundary with the wall, if the piece 7 is mounted at the base in the state that piece 7 is directed upward, a circular saw machine is guided by the wall surface by bringing the outer surface 5 of the guide 2 into contact with the wall surface, and cutting parallel to the contact surface can be performed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a parallel ruler used as a cutting guide in a cutting tool such as a cutter or a circular saw machine.

[0002]

2. Description of the Related Art A conventional parallel ruler, as shown in FIG. 6, is a guide bar 22 mounted orthogonally to a rectangular base 21 provided at the lower part of a circular saw machine 20, and is fixed to the tip of the guide bar 22. Guide plate 2 parallel to the cutting direction of the circular saw machine 20
3 of the guide plate 23 and the side surface W of the material W to be cut.
₁ (reference end face) to press the circular saw machine 20 to the side W
It is possible to guide in parallel with ₁ .

[0003]

In the above parallel ruler, the usage pattern is limited as shown in FIG. That is, the side surface W _{1 serving as the} reference end surface must be located on the side of the material W to be cut with the contact surface between the bottom surface of the base 21 and the material W to be cut being on the side of the base 21 in the left-right direction from the guide plate 23. Since the structure is unusable, the parallel ruler cannot be used in cutting work at a position where the reference end face cannot be obtained, for example, on a wide plate surface or near the boundary between the wall and the floor.

[0004]

In view of the above, the present invention provides a parallel ruler for a cutting tool which can be used on the wide plate surface or the like in addition to the conventional usage pattern, and the construction thereof is the above-mentioned. A guide member such as a guide plate can be attached to the base in an upside-down direction above the lower end face of the base, while the guide member is provided with a protruding portion located below the lower end face of the base at any one attachment position. It is characterized in that guide surfaces opposite to each other are formed on both left and right sides in the cutting direction, and the base side of the guide surfaces is provided to the projecting portion. Also, two guide bars can be attached to the front and rear in the cutting direction of the base. Further, the protruding portion is provided so as to be displaced toward the base side from the guide surface on the side opposite to the base,
An intermediate body interposed between the base end surface and the reference end surface can be screwed. Note that the up, down, left and right directions in the present invention are described as the base side set on the material to be cut up, the material side to be cut down, and the left and right with respect to the cutting direction. This relationship does not change regardless of the posture in use.

[0005]

When the reference end face is obtained below the base lower end face, the guide part on the base side provided on the protrusion becomes the reference end face by attaching the protruding part of the guide body to the base of the cutting tool. Abutting and guided, it is possible to cut parallel to the reference end face. On the other hand, even if the reference end face is not obtained below the lower end face of the base, if the guide body is attached to the base with the projecting portion above, the guide face on the side opposite to the base is brought into contact with the wall surface or the like. A guide can be obtained using the surface as a reference end surface, and cutting can be performed parallel to the wall surface and the like. Further, when two guide bars are provided, the guide by the guide body can be suitably performed without swinging of the cutting tool. Further, when the protruding portion is provided so as to be shifted toward the base side, the head of the screw for screwing the intermediate body does not come into contact with the reference end surface even when guided by the guide surface on the side opposite to the base.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a parallel ruler. The parallel ruler 1 is formed by fixing two rectangular parallelepiped guide bodies 2 through which one ends of two parallel guide bars 3 are orthogonally penetrated. The upper surface 4 and the lower surface 6 of the guide body 2 are formed parallel to the guide bar 3, and the outer surface 5 is formed at a right angle to the upper surface 4 and the lower surface 6, respectively. 7
Are erected over the entire length of the guide body 2. Also vertical piece 7
A plurality of through-holes 7a, 7a ... Are drilled so that the batten 8 as an intermediate can be screwed. The batten 8 is screwed to the guide bar 3 side of the vertical piece 7. In order to prevent the heads of the screws 9 and 9 from projecting beyond the outer surface 5 when the above is done, the standing position of the vertical piece 7 is a position parallelly moved from the extension surface of the outer surface 5 to the free end side of the guide bar 3 on the upper surface 4. Is set to.

When the parallel ruler 1 thus constructed is attached to the circular saw machine 10, as shown in FIG.
At a pair of front and rear edges (upper and lower in FIG. 2) in FIG. 1, mounting portions 12, 13 in which insertion ports 12a, 13a, 14a into which the guide bar 3 is loosely inserted are arranged in a straight line at the center and both sides, respectively. 14 are formed, and the guide bars 3 and 3 of the parallel ruler 1 are respectively inserted from either the left or right edge side (here, from the mounting portions 14 and 14 side), and from above the mounting portions 14 and 14 on the insertion side. By tightening the fixing screws 15 and 15, the guide bars 3 and 3 are attached to the base 1 as shown in FIG.
It is pressed and fixed to the bottom of 1. Therefore base 1
By adjusting the protruding length of the guide bar 3 from 1, the distance between the guide body 2 and the blade 10a can be set arbitrarily. Here, when the reference end face serving as a guide is obtained below the bottom face of the base 11 as in the conventional case, the parallel ruler 1
As shown in FIG. 3, when the guide bars 3 and 3 are attached to the base 11 with the vertical piece 7 facing downward, the vertical piece 7 is attached to the reference end surface W ₁ of the workpiece W and the upper surface 4 is attached. The vertical pieces 7 come into contact with the upper surface W _{2 of the} material W to be cut, and the vertical piece 7 serves as the reference end surface W.
_{If the} circular saw machine 10 is moved while being guided to ₁ , straight line cutting parallel to the reference end surface W ₁ can be performed. Particularly, here, the relatively long guide body 2 is supported by the two guide bars 3 and 3, so that the deflection of the blade 10a at the time of cutting is suppressed as compared with the conventional one guide bar. Therefore, highly accurate cutting can be performed. Further, in the usage pattern of the parallel ruler 1, as shown in FIG. 4, when the batten 8 having the contact surface 8a parallel to the vertical piece 7 is screwed to the vertical piece 7 with the screw 9, the reference of the workpiece W is obtained. There is no risk of damaging the end face W ₁ . On the other hand, in the case where the reference end surface is not obtained from the bottom surface of the base 11 to the material W side, for example, on a wide plate surface or at a position near the boundary with the wall on the ceiling or floor, etc., FIG. When the parallel ruler 1 is turned over from the state and the vertical piece 7 is directed upward as shown in FIG. 5, and the base 11 is attached in the same manner as described above, the guide fixed to the wall surface or the material W to be guided is provided. By bringing the outer surface 5 of the guide body 2 into contact with the body material 16 and the like, the movement of the circular saw machine 10 is guided by the wall surface and the guide body material 16 in the same manner as described above, and the contact surface W of the guide body material 16 and the wall surface W. ₃
It is possible to cut parallel to the (reference end face). Further, as described above, since the vertical piece 7 is displaced to the base 11 side, the head of the screw 9 does not come into contact with the reference end face even if the batten 8 is screwed on the vertical piece 7, and the contact surface W Does not hurt ₃ . Of course, this form can be used without the batten 8.

In the above embodiment, the relatively long guide body 2 is used.
The parallel ruler 1 having two guide bars 3 and 3 has been described. In this case, regardless of the above-mentioned usage of the parallel ruler, the effect of suppressing the swing of the circular saw machine at the time of cutting and improving the cutting accuracy can be obtained, but from one guide bar and a relatively short guide body Even with the parallel ruler, two types of use modes can be obtained in the same manner as above. In the above description, the embodiment in which the parallel ruler is used upside down on one side of the base has been described.
As indicated by the chain double-dashed line, the same can be used on the opposite side as above. Further, if the guide body 2 is hollow, it is preferable because the parallel ruler as a whole is made lighter, but it is also possible to adopt a solid hollow body. It can also be converted. In addition, the outer surface 5 serving as the guide surface and the vertical piece 7 need not be provided over the entire length of the guide body 2, and may be provided, for example, at the front half portion of the guide body or at the front and rear end portions.

[0009]

As described above, according to the present invention, in addition to the usage of the conventional parallel ruler, the parallel ruler can be used even at a position where the conventional reference end face cannot be obtained, such as on a wide plate surface or near the boundary between the wall and the floor. It can be used for cutting, improving workability and cutting accuracy of cutting work. Further, when two guide bars are provided, swing of the cutting tool can be suppressed and good cutting accuracy can be obtained.
Further, if the protruding portion that allows the intermediate body to be screwed is provided so as to be shifted to the base side, the head of the screw for screwing the intermediate body does not come into contact even when being guided by the guide surface of the guide body on the side opposite to the base, Does not damage the reference end face.

[Brief description of drawings]

FIG. 1 is a perspective view of a parallel ruler.

FIG. 2 is an explanatory view showing a state in which a parallel ruler is attached to a circular saw machine.

FIG. 3 is an explanatory diagram showing a usage pattern of a parallel ruler.

FIG. 4 is an explanatory view showing a case where a batten is screwed on the parallel ruler of the usage pattern of FIG. 3;

FIG. 5 is an explanatory diagram showing another usage mode of the parallel ruler.

FIG. 6 is an explanatory diagram showing a usage pattern of a conventional parallel ruler.

[Explanation of symbols]

1 ... Parallel ruler, 2 ... Guide body, 3 ... Guide bar,
4 ... upper surface, 5 ... outer surface, 6 ... bottom surface, 7 ... vertical piece,
8 ... Batten, 10 ... Circular saw machine, 11 ... Base.

Claims (3)

[Claims] 1. A cutting tool set on a material to be cut is provided with a guide body mounted in parallel to a cutting direction via a guide bar, and the guide body is brought into contact with a reference end surface to perform cutting. A parallel ruler for a cutting tool capable of guiding movement of a tool parallel to a reference end surface, wherein the guide body can be attached to the base in an upside-down direction above a lower end surface of the base, while the guide body is Protrusions located below the lower end surface of the base are provided at one of the mounting positions, and guide surfaces opposite to each other are formed on both left and right sides in the cutting direction, and the base side of the guide surface is provided to the projection. Parallel ruler for cutting tools characterized by. 2. The parallel ruler for a cutting tool according to claim 1, wherein two guide bars are attached to the front and rear in the cutting direction of the base. 3. The method according to claim 1, wherein the protrusion is provided so as to be displaced from a guide surface on the side opposite to the base toward the base side, and an intermediate body interposed between the protrusion and the reference end surface can be screwed onto the base side. The parallel ruler for a cutting tool according to claim 2.