JP3193224B2 - Slide marunoco - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slide-type tabletop circular sawing machine suitable for cutting long objects (hereinafter referred to as "slide marnoko").
It relates) that, to position the cutting member on the turntable and the turntable for placing the disconnect member in Japanese
Fence fixing structure for

[0002]

2. Description of the Related Art Conventionally, a turntable of this slide marnoko has a structure disclosed in, for example, Japanese Utility Model Application Laid-Open No. 63-172601 or U.S. Pat. No. 4,537,105. FIG. 4 shows a schematic configuration of the table 30. As shown in the figure, a table body 35 of the conventional turntable 30 has a substantially circular shape and is rotatably supported by a base, and a single blade 32 for releasing a rotary saw blade (not shown) is provided on the upper surface thereof. It is formed downward from the center of the table body 35 in the figure. Conventionally, the table body 35 has been miniaturized (smaller diameter) as much as possible in order to reduce the weight and size of the slide circular saw.
Since the blade port 32 needs to correspond to the entire sliding area of the saw blade, the blade port 33 having a substantially cylindrical shape is attached to the table body 35.
Is provided integrally with it protruding from the side (downward in the figure),
The upper surface of the blade portion 33 is set to be flush with the table main body 35 so as to form one continuous blade 32 from the center of the table main body 35 to the tip of the blade portion 33.
Therefore, the conventional turntable 30 is generally shaped like a frying pan.

On the other hand, if the table main body 35 is made as small as possible, it becomes impossible to secure a sufficient area for stably mounting the cutting material. Normally, sub-tables 34, 34 are provided adjacent to both sides of the table main body 35 and are flush with each other. By using these sub-tables 34 and 34 in combination, a sufficient mounting area is ensured, and even a large cut material can be stably mounted. It was a configuration that could be done. Reference numeral 37 in the figure denotes a fence (guide rule) for positioning the cut material at a predetermined position on the turntable by abutting the side surface of the cut material. 34,34
And is arranged so as to straddle above the table main body 35 so as not to hinder the rotation operation of the table main body 35.

[0004]

However, since the sub-table 34 is separate from the table main body 35 and provided integrally with the base, the sub-table 34 does not move with the rotation of the turntable 30. For this reason, the sub-table 34 can be provided only within a range that does not hinder the movement of the blade portion 33 due to the rotation of the turntable 30. Here, the conventional turntable 30
Usually, the left and right sides can be rotated about 45 ° to 60 ° at the maximum, so that the sub-table 34 cannot be provided so as to wrap around the front (lower side in the figure) of the table main body 35, It had to be provided only in the lateral area. From this, in a state where the turntable 30 is rotated in an appropriate direction by an appropriate angle, between the blade opening 33 and the sub-table 34,
A recess 36 which always enters the surface direction (table surface direction) of the turntable is formed.
Is a portion that does not receive the cut material when the cut material is placed on the table body 35 and the sub-table 34 in a bridging manner.

As described above, although the provision of the sub-table 34 in the related art allows a large cutting material to be stably placed, it is not always possible to avoid the recesses 36, 36 as described above, so that it is not necessarily required. It could not be said that the cut material could be placed on the turntable 30 with more sufficient stability. Furthermore, small pieces may be caught in the recesses 36, 36 between the blade opening 33 and the sub-tables 34, 34. In this case, it is necessary to remove the small pieces when rotating the turntable 30. It was very troublesome.

[0006] The sub-table 34 is a table body 3
Although it was provided flush with 5, it was inevitable that a slight level difference would occur due to the machining accuracy or assembly accuracy of the two, so the cutting material was placed between the two in a bridging manner. Occasionally, rattling may occur, which makes it difficult to perform high-precision cutting in a cutting operation that requires high accuracy, such as a frame.

The present invention has been made in view of the above-mentioned conventional problems, and a cutting material can be more stably placed because a recess 36 in the direction of the table surface is not generated unlike the conventional one. Between tables and subtables
An object of the present invention is to provide a slide circular saw capable of stably mounting a cutting material and performing high-precision cutting even in this regard, since it is not placed across a step between the two .

[0008]

SUMMARY OF THE INVENTION Accordingly, the present invention is not limited to the above.
A slide circle saw having the configuration described in claim 1 was obtained.
According to the configuration of the first aspect, the fence is provided with a turntable.
Not only outside the table, but also in the table
Fixed to the base even in the area on the inner peripheral side of the edge)
Therefore, while securing the support rigidity of the fence,
The diameter of the turntable can be set large.

Here, a fence for abutting the side surface of the cut material to position the cut material at a predetermined position on the turntable does not interfere with the rotation operation of the turntable , as shown in FIG. Both sides of the base projecting to both sides of the turntable 30 Specifically, the subtable 3
They were fixed only to the upper surfaces of the turntables 34 and 34 and were arranged so as to straddle substantially the center of the turntable 30 . For this reason,
If the turntable has a relatively large diameter, the fixed structure described above requires the fixed span of the fence (with respect to the base).
Spacing of the fixing portion) becomes too long, resulting Fen <br/> scan of the fence when contact with the side surface of the cutting material support rigidity is lowered for example vise assembly to a table surface direction table that The material is bent in the plane direction , so that accurate positioning of the cut material cannot be performed. However, according to the configuration of claim 1, the fixing portion of the fence can be arranged with a shorter span .
In, the fence of support Tsuyoshi also turntable is a large diameter
Never sex is impaired, thus accurately position the sides of the cut material to the fence in contact with the cutting member on the turntable.

[0010] That is, if the turntable having an area in the range encompasses a conventional sub table 34 the turntable to form than before with a large diameter, between the conventional blade edge portion 33 and the sub table 34 Table that occurs on
The recess 36 which has entered the surface direction is eliminated, and the same portion becomes a portion which can receive the cutting material. Since the cutting material can be received even in the portion which was the conventional recess 36, the cutting material is placed in a more stable state. Further, since there is no concave portion 36 in which small pieces and the like are sandwiched, the turntable can be smoothly rotated.

Also, the conventional sub-table 34 is included.
If the turntable has a large area in the range of
Since the conventional sub-table can be omitted, the cut material is placed on a flat surface (the upper surface of the turntable) with no step regardless of the assembling accuracy of the turntable . A sub-table 3 generated due to a certain part, that is, an assembling condition of the turntable 30 or the like.
No rattling as in the case where the camera is placed across the step between the camera 4 and the camera 4 can be performed with high precision especially in the cutting operation of a frame or the like.

[0012]

Next, an embodiment of the present invention will be described with reference to FIGS. FIG. 1 shows a slide marco 1 of this example.
The whole is shown. The slide circular saw 1 includes a circular saw body 2 provided with a rotary saw blade 5, a turntable 3 for mounting a cutting material (not shown), and a support portion for supporting the circular saw body 2 on the turntable 3. 4
The main body 2 is supported above the turntable 3 via the support portion 4 so as to be slidable in the front-rear direction and tiltable right and left. The circular saw body 2 and the support portion 4 do not require any particular change, and will not be described in detail.

The turntable 3 is rotatably mounted on the upper surface of the base 10 via a support pin 19 (see FIG. 3) rotatably supported about the axis at substantially the center of the base 10 of the slide circular saw 1. It is supported by. The turntable 3 has a substantially disk shape having a diameter larger than that of the above-described conventional table body 35,
4 and 34. The upper surface of at least the semicircular portion of the turntable 3 on the near side in the figure (on the front side with respect to the fence 11) is formed in a flush state with sufficient precision so that the mounted cutting material does not rattle. ing. In addition, this turntable 3
The blade plate 12 is fixed to the upper surface of the blade plate 12 from the center to the radially outward side of the drawing in FIG.
2, a single blade port 12a is formed along the longitudinal direction. Further, a substantially U-shaped receiving portion 1 is provided on the back side (lower side in the drawing) of the turntable 3 along the blade plate 12.
3 are provided (see FIG. 3), and the inside of the receiving portion 13 is a relief recess 13a for the saw blade 5 to escape. The receiving portion 13 is provided so as to protrude slightly further outward from the front end of the turntable 3, and the blade port plate 12 is also protruded outward similarly to the receiving portion 13 so that the blade port 12 a is formed. It is formed so as to extend to its end, so that the blade 1
2 a and relief recesses 13 a are provided corresponding to the entire sliding area of the saw blade 5. A grip 14 for rotating operation is attached to the tip of the receiving portion 13.

Further, at two positions on the left and right, which are substantially intermediate between the center and the edge of the turntable 3, arc groove portions are provided at point symmetrical positions along the same circumference in a range of about 45 ° to 60 ° in the circumferential direction. 15, 15 are formed to penetrate. The arc grooves 15 , 15 are formed to fix the fence 11 to the base 10, and will be described later in detail.

Next, as is well shown in FIG. 3, four walls 3a to 3d as reinforcing ribs are provided on a substantially concentric circumference near the outer periphery of the back surface of the turntable 3. It is formed so as to protrude in a drooping shape. The lower end of the innermost wall 3a is in contact with a raised ridge 10b formed on the upper surface of the base 10 so as to face the wall 3a,
Through this contact, the weight of the turntable 3 and the cutting material and the cutting load due to the pressing of the saw blade 5 are received, and the turntable 3 is prevented from rattling or bending in the vertical direction. Although not shown, a flat sliding metal is interposed between the wall 3a and the ridge 10b in order to realize smooth sliding between the two. Other three walls 3 near the outer circumference
Although there is a slight gap between b to 3d and the upper surface of the base 10, a wall 3b adjacent to the inner peripheral side of the fixed column 16 and a wall 3c adjacent to the outer peripheral side of the fixed column 16 described later. The lower portion of the arc groove portion 15 and the lower portion of the other portion of the turntable 3 are substantially blocked, so that the arc groove portion 1
5 is prevented from being widely scattered on the upper surface of the base 10, and the formation of the arc-shaped groove portion 15 prevents the dust-proof function between the turntable 3 and the base 10 from being lowered. As a result, the turntable 3 is always maintained in a state where it can rotate smoothly. In particular, a dust-proof wall 10c projecting from the upper surface of the base 10 is opposed to the distal end portion of the inner peripheral wall 3b with a slight gap therebetween. The dust is reliably prevented by the labyrinth effect with the tip of 3b. Further, dust is prevented between the edge of the turntable 3 and a projection 10a described below by the outermost wall 3d. Although not shown, the base 10 is formed with a suitable number of holes for discharging chips, so chips entering the lower part of the turntable 3 can be easily discharged to the outside through the holes. Is done.

On both sides of the turntable 3 thus formed, a convex portion 10 for fixing the fence 11 is provided.
a, 10a are located, and the two convex portions 10a, 10a
“a” is formed integrally on both sides of the base 10. A fence 11 is fixed between the two convex portions 10a, 10a so as to straddle substantially the center of the turntable 3. The biconvex portions 10a, 10a are arranged at substantially the same positions as those where the sub-tables 34, 34 were located in the conventional circular saw, but the upper surface of the biconvex portions 10a is lower than the upper surface of the turntable 3. Since it is located at the position, the cut material placed on the turntable 3 is not received on the upper surface of the projection 10a, and therefore does not have a function as a sub-table. In addition, the bi-convex portions 10a,
Although the upper surface of 10a is formed in a horizontal plane, the upper surface of both convex portions 10a may be formed as an inclined surface that is inclined downward outward, and according to this, it has fallen from turntable 3 onto convex portion 10a. Since the cutting chips easily slide down to the outside of the base 10, the removal of the cutting chips becomes easy.

The fence 11 itself does not need to be changed, but its fixing structure is significantly different from the conventional one. That is, the fence 11 has two bolts 17 at both ends on the upper surface of the biconvex portion 10a.
a and 17a are almost the same as in the prior art, but within the plane of the turntable 3 (the inner circumferential side from the edge,
(The same applies hereinafter) in that it is fixed to the base 10. That is, as shown in FIG. 3, on the upper surface of the base 10,
The fixing columns 16 and 16 are integrally formed so as to protrude upward corresponding to 15, and the upper portions of the fixing columns 16 and 16 are respectively inserted into the arc grooves 15. The fence 11 is also received by the upper surfaces of the fixed columns 16 and 16 and is fixed by bolts 18a and 18a, respectively. As described above, the fence 11 is fixed to the base 10 at two positions near the end and two positions closer to the center than the two, and the fixed portion 1 near the end is fixed.
7 and 17 are arranged outside the turntable 3 as before, but the fixed portions 18 and 18 near the center are located in the plane of the turntable 3 at an appropriate distance from the fixed portion 17 near the ends. Are located. From this, the fence 11
Since the turntable 3 is fixed at an appropriate span regardless of the size of the turntable 3, even if the turntable 3 is formed sufficiently larger than the conventional general size as described above, the support rigidity of the fence 11 is not hindered at all. Therefore, the fence 11 is fixed with sufficient rigidity particularly in the surface direction of the turntable 3. According to this, even when the cutting material is fixed to the fence 11 while being pressed against the fence 11 using, for example, a lateral vise device (not shown), the fence 11 does not bend in the surface direction of the turntable 3. The cutting material can be reliably positioned at a predetermined position.

It is needless to say that the fence 11 is fixed in a state in which a slight gap is provided between the fence 11 and the turntable 3 so as not to hinder the rotation operation of the turntable 3 or a state in which the fence 11 is slid lightly. In addition, fixed pillar 1
Since the rotating ends of the turntable 3 are restricted by the fixed columns 16, 16, 16, 16 are inserted into the arc-shaped grooves 15, 15 of the turntable 3. A separate stopper for the turntable 3 may be provided. Further, in the figure, reference numeral 21 denotes a material which is pressed from above to turntable 3
22 is a hole for mounting a vertical vise device used for clamping on the upper side, and 22 is a hole for mounting a horizontal vise device used for pressing the material from the side and clamping it between the fence 11. Numeral 23 is a hole for detachably mounting a substantially U-shaped guide fitting which is formed to protrude laterally from the convex portion 10a and does not particularly need to be changed.

According to the configuration described above, the slide saw 1 of this embodiment has the following operation and effects. That is, the turntable 3 of the slide marco 1 of this example is
Since the slide table has a sufficiently large area that also includes the sub-table 34 in the conventional slide circular saw, the side of the turntable 3 is used to compensate for the reduction in the mounting area due to the small size of the table body 35 as in the conventional case. It does not have a configuration in which the sub-table 34 or the blade port 33 is positively extended. For this reason, the table surface generated between the sub-table 34 and the cutting edge 33 conventionally.
There is no concave portion 36 in the direction , and the cut material is received by the turntable 3 even in the portion which has conventionally been the concave portion 36, so that the cut material can be more stably placed. In addition, since there is no recess 36 in which small pieces and the like are sandwiched, the turntable 3 is smoothly rotated.

In the case where the cutting material is relatively large in the prior art, the cutting material is placed in a state of being received by both the table body 35 and the sub-table 34. Has a sufficiently large area in a range that also includes the conventional sub-table 34, so that a portion corresponding to the conventional sub-table 34 is not provided. For this reason, even if the cut material is relatively large, the cut material is received only by the turntable 3 and corresponds to a portion separate from the turntable 3, specifically, a conventional subtable 34 or the like. It is not a configuration that can be received depending on the part. For this reason, the cutting material is not placed across the step generated due to the assembly accuracy or the like as in the related art, and therefore, also in this point, the cutting material can be stably placed without rattling, and as a result, High-precision cutting can be performed.

Further, when the table main body 35 is miniaturized as in the prior art, the fence 37 is not provided in the surface of the table main body 35 but is fixed only to the end portion. It is possible to fix the turntable 3 in a state where it has an appropriate rigidity. However, when the turntable 3 is configured to be considerably larger than the conventional one as in this example, the fence 11 is provided only by the fixing portion 17 near the end. Cannot be fixed in a state having sufficient rigidity. In this embodiment, the fence 11 is fixed not only by the fixing portion 17 near the end but also by the fixing portion 18 set in the plane of the turntable 3.
By appropriately setting the interval (span) between the eight, the fence 11 can be fixed in a state having sufficient rigidity. In particular, since the rigidity of the turntable 3 in the surface direction is sufficiently ensured, the fence 11 does not bend even when the cut material is clamped by using, for example, a lateral vise, and the cut material is removed by a predetermined amount. And the problem that the support rigidity of the fence 11 is reduced due to the increase in the size of the turntable 3 does not occur.

Further, wall portions 3b and 3c are formed on the back surface side of the portion of the turntable 3 where the arc groove portion 15 is formed,
Further, the labyrinth effect achieved by the wall portion 3b and the dust-proof wall 10c on the base 10 side has a configuration in which the lower portion of the arc-shaped groove portion 15 is isolated from other portions between the turntable 3 and the base 10. Therefore, chips and the like that have entered the lower portion of the turntable 3 through the arc groove portion 15 do not enter other portions. As described above, in order to set the fixing portion 18 of the fence 11 in the plane of the turntable 3, the arc groove 15 is provided in the plane of the turntable 3. The dustproof effect between the base and the base 10 is not reduced, so that the turntable is always maintained in a state where it can be smoothly rotated.

[0023]

According to the first aspect of the present invention, the turnte
Even if the cable becomes large, the fence is fixed with an appropriate span
Because it can do, without impairing the support rigidity of the fence,
Therefore, the positioning of the cutting material can be performed accurately. H
Enlarge the turntable without compromising the support rigidity of the
Since it can be typed, there is no conventional sub-table
As a result, the recess in the direction of the table surface can be eliminated , so that the cut material can be more stably mounted on the turntable regardless of the mounting condition. In addition, since there is no recess in which small pieces and the like are sandwiched, the turntable can rotate smoothly.

[Brief description of the drawings]

FIG. 1 is a view showing an embodiment of the present invention, and is an overall perspective view of a slide saw.

FIG. 2 is a plan view of a turntable.

FIG. 3 is a sectional view taken along line AA of FIG. 2, and is a longitudinal sectional view of a turntable.

FIG. 4 is a plan view of a turntable attached to a conventional slide circular saw.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Sliding circular saw 2 ... Circular saw body 3 ... Turntable, 3a-3d ... Wall 5 ... Rotating saw blade 10 ... Base, 10a ... Convex part, 10b ... Protrusion, 10c ...
Dustproof wall 11 ... Fence 12 ... Blade plate, 12a ... Blade 13 ... Receiving portion, 13a ... Escape recess 15 ... Circular groove portion 16 ... Fixed column 17 ... Fixed portion near the end 18 ... Fixed portion near the center 30 ... Conventional Turntable 34 ... subtable 35 ... table body 36 ... recess

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-58-104701 (JP, A) JP-A-3-43116 (JP, A) JP-A 5-26301 (JP, U) JP-A-3-263116 70902 (JP, U) Actually open 63-35525 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B27B 5/20-5/29 B27B 27/00-27/10

Claims (1)

(57) [Claims] 1. A turntable on which a cutting material is placed.
And a base rotatably supporting the turntable,
Fixed to the base and located above the turntable
Equipped with a fence for positioning the cutting material
A slide circular saw, which is provided in the turntable so as to penetrate a groove, and passes through the groove.
A slide marco that is configured to fix the fence to the base .