JPH0751281Y2 - Mortise machine - Google Patents

Description

[Detailed Description of the Invention] [Industrial application] The present invention relates to a circular saw drive switch of a tenon remover for performing tenon processing by vertically moving a cutting head having a circular saw.

[Conventional technology]

Conventionally, since the circular saw driving motor is attached to the cutting head, the circular saw drive switch of the mortise remover is
It was attached to a cutting head that moved up and down.

[Problems to be solved by the device]

For this reason, the position of the circular saw drive switch changes up and down as the cutting head moves up and down, which causes a problem in operability. Especially, when the circular saw has to be stopped in an emergency, it constantly changes. There was a problem that the position of the switch was confusing and quick operation could not be performed.

Also, when replacing or setting the circular saw, I work by raising the safety cover, but in this case, I sometimes work without disconnecting the power plug, and if I accidentally touch the circular saw drive switch, There was a risk that the circular saw would start up and could be injured by the exposed circular saw.

An object of the present invention is to eliminate the above-mentioned conventional drawbacks and enhance the safety when the safety cover is opened.

[Means for Solving the Problems]

For the above-mentioned purpose, a guide bar is hung vertically on the base, and a bridge for supporting the guide bar is provided on the upper end of the guide bar. A pair of orthogonal circular saws is driven between the guide bar and the bridge. In a tenon-removing machine that performs a tenon processing by moving a circular saw driving motor and a safety cover that covers the circular saw and can rotate up and down and moves up and down with a guide bar as a guide, This is achieved by providing a circular saw drive switch, and by rotating the safety cover upward, the circular saw drive switch is self-supporting on the bridge and is provided so as to cover the circular saw drive switch from above.

[Action]

Raising the cutting head to the upper limit position and rotating the safety cover to make it self-supporting on the bridge upper surface guards the circular saw drive switch from above. I tried not to do it.

〔Example〕

An embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a side view of a tenon remover showing an embodiment of the present invention, and FIG. 2 is a top view of FIG. 1 showing a state in which a front side safety cover is self-supporting.

In the figure, a guide bar 2 is vertically installed at one end of a base 1,
The upper end of the guide bar 2 is supported by the bridge 3. Base 1,
A cutting head 4 is fitted to the guide bar 2 between the bridges 3, and the cutting head 4 moves up and down by a driving device (not shown).
The cutting head 4 is provided with a circular saw driving motor 5 for driving the circular saw and a pair of vertical sawing saws 6 and side sawing saws 7 which are orthogonal to each other via a driving device for the saw. A safety cover 8 is attached to the upper part of the cutting head 4 to cover the upper parts of the circular saws 6 and 7. The safety cover 8 is fitted to the guide bar 2 like the cutting head 4, and moves vertically between the base 1 and the bridge 3.

At the center of the upper surface of the safety cover 8, a front side safety cover 9 covering the blade surface of the vertical saw blade 6 and the side surface of the horizontal saw blade 7 pivots up and down with the center portion of the upper surface of the safety cover 8 as a fulcrum. It is provided freely. A circular saw drive switch 10 is connected to the motor 5, and the switch portion is provided on the upper surface of the bridge 3 so as to face upward.

In the above configuration, the circular saw drive switch 10 is connected to the bridge 3
Since the position of the switch does not change as the cutting head 4 moves up and down, the switch can be operated without confusion even when stopped in an emergency.

When replacing the circular saws 6 and 7, if the cutting head 4 is raised to the upper limit position and the front safety cover 9 is rotated upward to the position shown by the chain double-dashed line in FIG. 9 is self-supporting on the upper surface of the bridge 3 and covers the circular saw drive switch 10 from above. Therefore, when the cutting head 4 is at the upper limit position, the circular saw drive switch 10 cannot be operated.

[Effect of device]

According to the present invention, when the safety cover is opened, the circular saw drive switch is self-supporting on the bridge to cover the circular saw drive switch, so when the safety cover is exchanged or opened with the set, the circular saw drive switch is inadvertently touched. , Vertical and horizontal birch saws do not drive,
It is possible to prevent accidents.

[Brief description of drawings]

FIG. 1 is a side view of a tenon remover showing an embodiment of the present invention, and FIG. 2 is a top view of FIG. 1 showing a state in which a front side safety cover is self-supporting. In the figure, 1 is a base, 2 is a guide bar, 3 is a bridge, 4 is a cutting head, 5 is a circular saw driving motor, 6 is a vertical saw blade, 7 is a horizontal saw blade, 8 is a safety cover, 9
Is a front safety cover, and 10 is a circular saw drive switch.

Claims (1)

[Scope of utility model registration request] 1. A guide bar is vertically provided on a base, and a bridge for supporting the guide bar is provided at an upper end of the guide bar. A pair of orthogonal circular saws is driven between the guide bar and the bridge. In the tenon-removing machine for performing tenon processing by moving a circular saw driving motor and a safety cover that covers the circular saw and is rotatable up and down with a guide bar as a guide, A tenon shaving machine provided with a circular saw driving switch, and when the safety cover is rotated upward, the circular saw driving switch is provided so as to stand on the bridge and cover the circular saw driving switch from above. .