JPH0558201U - Cutting ruler for electric circular saw - Google Patents

Abstract

(57) [Abstract] [Purpose] To propose a cutting ruler for an electric circular saw that simply and surely guides cutting along a scoring line of panels typified by veneer plywood. [Configuration] Gauge plate that can be attached to and detached from the gauge body (14)
Firmly attach (28), and attach the gauge body (1
4) Providing the positioning edge that created the cutting reference edge (27) by this operation of the electric circle along the copying bar (23).

Description

[Detailed description of the device]

[0001]

[Industrial application]

 Electric circular saws are used for convenience in civil engineering and construction materials, including veneer plywood and other new building materials, especially in cutting work at panel work sites. The purpose is to propose a cutting ruler that can perform cutting work efficiently, accurately and advantageously.

[0002]

[Prior Art]

 The electric circular saw has a variable cutting width setting guide, and by moving this along the side edge or edge of the panel, it is convenient to perform a constant width cutting for each set width, but it is necessary. In the case of width cut cutting with different dimensions, for example, as shown in FIG. 1, two points A and B separating a predetermined dimension from the side edge of the panel 1 are scored (FIG. 1- (a)). The distance K between the variable cutting width setting guide 3 and the blade 4 of the electric circular saw 2 shown in FIG. 2 is measured, and two points C and D, which are added to the predetermined size, are marked (FIG. 1- (b)). A straight scale r is spread over these two points C and D, and the setting guide is applied to this straight scale r, and as shown in FIG. 1- (c), an electric circle is placed on the cutting line 6 connecting the two points A and B. Cutting was performed by moving the blade 4 of this 1, but the calculation of adding the distance k when determining the two points C and D was tedious and confusing. Liable to occur drawback there is. In FIG. 2, 7 is a handle, 8 is a blade cover, and 9 is a motor.

[0003]

[Problems to be solved by the device]

 In order to avoid the above-mentioned drawbacks, the inventor of the present invention, instead of the straight scale r as shown in FIG. The veneer plywood 10 is cut along with the setting guide 5 of the electric circular saw 2 (FIG. 3- (b)), and the edge 12 is used as a reference to remove the panel 2 from the panel 1 as shown in FIGS. It was confirmed that the above-mentioned cutting process of the panel 1 aligned at the points A 1 and B 2 can be applied. In the figure, 13 is a cut piece.

However, in this case, there is a tendency that the edge 12 is ground and roughened due to the clam of the blade 4 by several cutting operations to prevent accurate alignment with the cutting line 6, and the edge 12 is cut during the cutting operation. There was a disadvantage that it was easy to shift and hindered stable work. Therefore, it is an object of the present invention to propose a cutting ruler for an electric circular saw, which can provide a proper countermeasure against the wear of the edge 12 with time and can achieve a stable cutting operation by the electric circular saw.

[0005]

[Means for Solving the Problems]

 This invention proposes a gauge main body having a copying bar that controls the sliding contact of the variable cutting width setting guide of an electric round, and a clamp groove that suppresses the gauge plate with one side edge close to the lower edge of the copying bar. The gauge plate is a cutting ruler for an electric circular saw, characterized in that the gauge plate is provided with the other side edge created by cutting the electric circular along the copy bar as a positioning edge.

FIG. 5 shows the basic structure of the above-mentioned gauge body 14, 15 is a bottom material thereof, and 16 is an upper material thereof, both of which are made of aluminum alloy extruded shape. The bottom member 15 has a relatively thick web 17 on one side at the center of the width, a pair of flanges 18 extending to both sides of the web 17, and a receiving lip 19 extending further laterally from each flange 18. A groove 20 is formed between 18, and a clamping groove 21 is formed at the base of the web 17, especially by overhanging the flange 18.

The receiving lip 19 is covered with an upper material 16 which can be made of a channel material, and is integrated with the bottom material 15 by a set screw 22, and the flange of the channel material is used as a copying bar 23. The clamp groove 21 is not shown in the drawings, but the gauge plate is a copy bar 23 as a clearance dimension that can be firmly held by press-fitting one side edge of the gauge plate such as the plywood 10 described above. The other side edge of the gauge plate is cut along with the setting guide 3 along the copying bar 23 and cut with the circular saw 1 as shown in FIG. 6 to form the cutting reference edge 27. However, the generating cut is performed each time the cutting reference edge 27 is damaged to maintain the accuracy of the reference edge. In the figure, 28 is a gauge plate.

In the groove 20 between both flanges, a spring clip 26, which is composed of a sandwiching jaw 24 having a width that can be accommodated therein and a biting jaw 25 extending along the lower surface of the panel 1 not shown in the figure, is detachably attached to the panel. 1 is clamped between the bottom of groove 20 on the side of point B mentioned above and held firmly.

[0009]

[Action]

 The cutting ruler for an electric circular saw according to the present invention is created each time the distance from the blade 4 of the variable cutting width setting guide 3 attached to the electric circular saw coincides with the distance from the copying guide 23. The other side edge 27 of the gauge plate 28 to be cut is aligned with the planned cutting line of the panel 1 to be cut, and the circular saw 2 is operated to perform accurate and simple width cutting.

[0010]

【Example】

 FIG. 7- (a) shows an embodiment in which the gauge body 14 is threadedly connected to each other so that the bottom member 15 and the upper member 16 are fastened and integrated by sandwiching a gauge plate 28 therebetween. ) And (b) are shown in cross section and appearance of the gauge body. In this case, the upper member 14 has a sheet 29 having a rectangular hollow cross section in the width center thereof, and the bottom member 15 has a raised portion 30 in the width center thereof so as to form a clamp groove 21 for sandwiching the gauge plate 28 with the sheet 29. With. The nut 31 is held on the lower surface of the raised portion 30, and the gauge plate 28 is pushed into the clamp groove 21 in the direction of the arrow by the setscrew 33 with the knob 32, which vertically penetrates the seat 29, and then is firmly fastened. Thus, the above-mentioned generation cutting of the reference edge 27 is prepared. The nut 31 may be a burring screw.

Next, another embodiment in which the clamp groove 21 is replaced by the spring clip 34 instead of the above-mentioned screw fastening is shown in FIGS. 8- (a), (b) and (c), which is a cross-sectional view, a bottom view and an external view. Represented. In the spring clip 34, a spring steel plate piece is bent back into a J shape more strongly than 180 °, and a burring 34 from which burrs from inside to outside are provided in advance on the short piece side, and a concave portion 35 for receiving this burring 34 and its The center hole 36 is prepared in the upper member 16 and is fixed to the upper member 16 by, for example, a blind rivet 37, so that the gap of the band clip 34 is used as a clamping groove.

The spring clips 34 are provided at several positions in the longitudinal direction of the gauge body 14, and the gauge plate 28 is pushed against the spring force as shown by the arrow in FIG. The cutting reference edge 27 is created and cut and used as a cutting ruler.

[0013]

[Effect of the device]

 According to this invention, the cutting reference edge 27 of the gauge plate 28 is aligned with the planned cutting line of the panel, and the electric saw can be operated along the copying bar 23 of the gauge body to perform accurate cutting. It is easy to renew the cutting reference edge 27 easily by detaching and replacing the gauge plate 28 every time when it is damaged by use, and performing creative cutting.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a circular saw cutting procedure along a ruled line.

FIG. 2 is a schematic view of this electric circle.

FIG. 3 is a manufacturing process diagram showing an idea of a cutting ruler.

FIG. 4 is a width cut cutting step diagram by the cutting ruler of FIG. 3;

FIG. 5 is a basic configuration diagram of a cutting ruler for an electric circular saw according to the present invention.

FIG. 6 is an explanatory diagram of a way of creating the cutting reference edge.

FIG. 7 is a cross-sectional view and an external view of an example.

FIG. 8 is a sectional view, a bottom view and an external view of another embodiment.

[Explanation of symbols]

 1 Panel 2 Circular Saw 3 Variable Cutting Width Setting Guide 4 Blade 6 Cutting Line 14 Gauge Body 23 Copy Bar 27 Cutting Reference Edge (Other Side Edge) 28 Gauge Plate

Claims (1)

[Scope of utility model registration request] 1. A gauge main body having a copy bar which controls the contact-sliding guide along with the variable cutting width setting guide of an electric circle, and closes the gauge plate at one side edge in proximity to the lower edge of the copy bar. A cutting ruler for an electric circular saw, characterized in that a clamp groove is provided, and the gauge plate is provided with the other side edge created by the cutting process of the electric circular along the copying bar as a positioning edge.