JPH024097Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention is an arm swing that is used to form a scribe on the surface of glass, etc., and to break the glass, etc. into a desired shape using this scribe as a boundary. This invention relates to a dynamic scribe cutter, and particularly to its reversing mechanism.

(b) Prior Art As shown in FIG. 3, a conventional scribe cutter of this type includes a cutter upper and lower arm 1, and a cutter holder 2 that is rotatably attached to this arm 1 about a shaft portion 2a. and a disc-shaped cutter 3 attached to the tip of the cutter holder 2. In this conventional scribe cutter, when the cutter upper and lower arms 1 are advanced, the cutter holder 2 follows and advances in the direction of movement, so it is possible to obtain a cutter trajectory with excellent straightness. Repeating the direction was thought to be the least stressful on the cutter and was most suitable. Therefore, as shown in Fig. 3, this scribe cutter first lowers the scribe cutter and presses the cutter 3 against the top surface of the glass 4 (step A), and then moves the scribe cutter to the left in the figure. (Step B), and when the cutter 3 reaches the left end of the glass 4, the scribe cutter is moved upward (Step C), and the cutter 3 is moved to the right in the figure without touching the glass 4. The glass 4 was cut by returning it to its original position (step D).

(c) Problems that the invention aims to solve In the conventional example above, since the glass was cut only in one direction, it took time to return the scribe cutter to its original position, and when doing so, the glass was cut in only one direction. A mechanism was also required to release the cutter from the glass surface.

(d) Means for solving the problems The present invention solves the problems of the above embodiment by providing a reversing mechanism that reverses the swinging cutter holder around the cutter attached to it. It is something.

(e) Examples Examples of the present invention will be described below based on the drawings.

FIG. 1 is a partial sectional view showing an embodiment of the present invention.

5 is a cutter slide that reciprocates linearly. In this embodiment, the cutter slide 5 does not move vertically.

A cutter holder 6 supports the cutter, and its shaft portion 6a is rotatably attached to the cutter holder 6 via a swing bearing 7 attached to the cutter slide 5.

8 is a cutter, which has an L-shape and is attached to the cutter holder 6 by a pin 9a, and a cutter arm 9.
It consists of a disc-shaped cutter plate 10 attached to one end of the cutter plate. This cutter board 10
The position where is attached is directly below the shaft portion 6a of the cutter holder 6, and the position where the cutter holder 6
coincides with the axis of rotation.

11 is a cutter pressing spring;
It acts to press the cutter arm 9 against glass or the like from the back side of the cutter holder 6, and is arranged between the cutter arm 9 and the recess 6b of the cutter holder 6.

Reference numeral 12 denotes an adjustment screw, which is screwed onto the other end of the cutter arm 9, and the end thereof is in contact with the cutter holder 6. By changing the screwing state of the adjustment screw 12, the vertical position of the cutter plate 10 can be adjusted.

13 is a reversing actuator for reversing the cutter holder 6;
The rotating shaft portion 13a is connected to the shaft portion 6a of the cutter holder 6 via the cutter holder 6.

The interior of the coupling ring 14 is set to be larger than the end of the shaft portion 6a of the cutter holder 6, as shown in the longitudinal section of FIG. Therefore, a gap G is created between the inner surface of the cutter ring 14 and the end of the shaft portion 6a of the cutter holder 6, and this gap G allows the cutter holder 6 to follow the movement of the cutter slide 5. , the direction of the cutter 10 can be corrected.

The scribe cutter of the present invention having the above structure cuts glass in one direction, and when the cutter plate 10 comes off from the glass and reaches the turning point, the reversing actuator 13 operates to reverse the cutter holder 6 and cut the glass in one direction. It returns to its original position while cutting the glass.

In the scribe cutter of this embodiment, the cutter holder 6 and the cutter arm 8 may be formed integrally.

(f) Effects of the invention According to the invention, wasted cutting time can be eliminated by cutting glass back and forth.

In addition, by inverting the cutter holder around the cutter, the cutter can be inverted immediately after the cutter comes off the glass, and by selecting an arbitrary index angle, the scribing angle can be freely selected. becomes possible.

Furthermore, by reversing the cutter holder when the cutter is removed from the glass, a mechanism for moving the cutter up and down can be omitted.

[Brief explanation of the drawing]

FIG. 1 is a partial sectional view showing an embodiment of the present invention, FIG. 2 is a vertical sectional view of the coupling shown in FIG. 1, and FIG. 3 is a diagram showing the operation of a conventional scribe cutter. . 5... Cutter slide, 6... Cutter holder, 7... Swing bearing, 8... Cutter, 9...
Cutter arm, 10... Cutter board, 13...
Reversing actuator, 14...coupling.

Claims (1)

[Scope of utility model registration request] A swinging arm type scribe cutter used for cutting glass, etc. has a cutter slide that moves back and forth linearly, a cutter holder that is rotatably attached to the cutter slide and supports the cutter. , a reversing mechanism for reversing the cutter holder, and when the cutter reaches a turning point, the reversing mechanism operates to reverse the cutter holder. Reversing mechanism.