JP2514622Y2 - Portable electric circular saw - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable electric circular saw.

[0002]

2. Description of the Related Art FIGS. 3 to 8 show a conventional portable electric circle.
An example is shown . The portable electric circular saw comprises a saw blade 1 driven by an electric motor, a saw cover 2 covering the upper side of the saw blade 1,
Below the saw blade 1 to prevent danger from contacting the saw blade 1 .
A safety cover 3 that covers the side of the unit and is rotatably attached is provided. As shown in FIG. 4, the safety cover 3 is connected to the safety cover 3 and the saw cover 2 by a spring 4 which serves to return from the rotational movement in the direction of arrow B in the figure to the original position. There is. In this thus constructed electric circular, mounting of the spring 4 to the saw cover 2, what has been fixed with a screw 5, as shown in those initial Figure 4, fewer parts and assembly improvement for production cost reduction by, 5, the holes 6 provided in the saw cover 2 as shown in Figure 6, to the hole 6 of the spring 4 hooks 4a
I was trying to hook.

[0003]

In the above-mentioned conventional technique, the saw cover 2 is attached by the spring 4 , and there are the following problems . 7, as shown in Figure 8, the spring 4 because part of the hook 4a of the spring 4 is you are exposed to the outside of the saw cover 2, the operator's hand and obstacles
The hook 4a is easily touched directly, and the spring 4 is easily removed. The spring 4 is disengaged, because work is not for returning the safety cover 3 which rotates in <br/> original position, the saw blade 1
Is exposed, and the operator may touch the saw blade 1 and be injured . The present invention has been made in view of the above points, and an object of the present invention is to provide a portable electric circular saw that can improve safety.

[0004]

The above object is achieved by providing a wall projecting to the outside of the saw cover around the hole for hooking the spring.

[0005]

Since the above means is provided, a part of the hook of the spring is not exposed to the outside of the saw cover as in the conventional case.

[0006]

EXAMPLES Next, the present invention will be specifically described by way of examples. 1 and 2 show an embodiment of the present invention.
It should be noted that the same parts as the conventional omitted and Description with the same reference numerals. In this embodiment, a wall 7 (outside the saw cover 2 ) is provided around the hole 6 for hooking the spring 4. The height d of the wall 7 is larger than the mounting height c of the hook 4a of the spring 4. The width b of the groove 8 surrounded by the wall 7 is slightly larger than the diameter a of the hook 4a of the spring 4. By doing so, it becomes difficult for an operator or an obstacle to come into contact with the hook 4a of the spring 4, the risk of coming off from the hole 6 for hooking the hook 4a of the spring 4 is extremely reduced, and the safety at the time of work is improved as compared with the conventional one. Can be improved.

Thus, according to this embodiment, the saw cover 2
On the hook portion 4a of the spring 4 exposed on the back surface,
It is possible to prevent the user and obstacles from coming into contact with each other and prevent the spring 4 from coming off.

[0008]

As described above , according to the present invention, since the wall protruding outside the saw cover is provided around the hole for hooking the spring hook, part of the spring hook is located outside the saw cover as in the conventional case. It will not be exposed and will not come into direct contact with workers' hands or obstacles,
A portable electric circular saw with improved safety can be obtained.

[Brief description of drawings]

Essential showing this embodiment of the disclosed exemplary invention portable electric circular
Part plan view.

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

FIG. 3 is a perspective view showing an example of a conventional portable electric circle.

FIG. 4 is a partial vertical sectional front view of FIG.

5 is a partial vertical front view of FIG.

6 is a rear view of FIG.

7 is a plan view of an essential part of FIG.

8 is a cross-sectional view taken along the line DD of FIG.

[Explanation of symbols]

1 saw blade, 2 saw cover, 3 the safety cover, the 4 scan <br/> pulling, 4a hook, 6 holes, 7 is a wall.

Claims (1)

(57) [Scope of utility model registration request] 1. A saw blade driven by an electric motor, a saw cover covering the upper side of the saw blade, a rotatable safety cover covering a predetermined position of the saw blade, and the safety cover and the saw cover. It has a spring that is connected between the springs and urges the safety cover toward the predetermined position, and the connection of the spring to the saw cover is a portable electric circular saw in which the hook of the spring is hooked in the hole provided on the back surface of the saw cover. the entire circumference of the hole for hooking a spring hook, provided with a wall which protrudes to the outside of the saw cover, the operator's hand and obstacles
Be careful not to touch the spring hook directly.
A portable electric circular saw characterized by that.