JPH0217828Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Purpose of the Invention] The present invention relates to a safety device for a meat machine, such as a meat slicer, which has a control section for an operating switch on the outside surface.

[Background of the invention] Figures 5 and 6 show the structure of a conventional operation switch section. Conventionally, a cam A22 was attached to the shaft 10.
is fixed, and the operation switch 7 is turned on and off by moving the SW handle 15 in the direction of arrow X. When the operation switch 7 is OFF, the SW handle 15 is in position A as shown in step 1.
The sleeve 14 is adapted to fit into the hole 8A of the cover 9 by the pressure of the spring 13. Further, the position of the SW handle 15 when the operation switch 7 is ON is position B as shown in step 3. Since the width of the elongated hole 8B is smaller than the outer diameter of the sleeve 14, move the sleeve 14 in the direction of arrow Y to remove it from the hole 8A, move the SW handle 15 to position B, and turn on the operation switch 7. When the operation switch 7 is OFF, even if the operator accidentally touches the SW handle 15, the sleeve 14 has entered the hole 8A, so the SW handle 15 will not move and the operation switch 7 will not turn ON, so it is safe. However, the conventional method described above has some insecure points.

First, when the SW handle 15 is located at position C shown in step 2, which is between positions A and B, as shown in FIG. 5, the operation switch 7 is turned OFF, so the SW handle 15 is moved to position B. Some workers operate between positions C. At this time, the sleeve 14 is not inserted into the hole 8A, and if the user accidentally touches the SW handle 15, the SW handle 15 will move to position B and the operation switch 7 will be turned on, creating a dangerous situation.

The second method is to change the angle of the cam A22 and turn the operation switch 7 so that the SW handle 15 is close to the position A, as shown in FIG. 6, in order to eliminate the first danger.
If it is set to ON, the dimensions of the hole 8A will be made larger, and the sleeve 14 will be turned on by the spring 13.
Since the corner 23 of the connection between the hole 8A and the elongated hole 8B is always pressed against the outer periphery of the cover 9, it is easy to wear out.
There is a danger that 5 will move and the operation switch will be turned on.

[Purpose of invention]

The purpose of the present invention is to eliminate the above-mentioned drawbacks of the prior art and to further increase the safety of this type of safety device.

[Summary of the idea]

In the present invention, the sleeve is loosely fitted onto the shaft, two protrusions are provided on the sleeve side and one protrusion is provided on the shaft side, and when the protrusions are engaged, the rotation angle of the sleeve changes relative to the rotation angle of the shaft. Focusing on the fact that the size of the drive switch, sleeve, shaft,
The positional relationship of the SW handle has been devised.

[Example of idea]

The round blade 2 is pivotally supported by a round blade base 3 erected at one corner of the machine stand 1. The meat box 6 is connected to a crank device 5 and is mounted so as to be able to reciprocate on a rail 4 fixed on the machine base 1. A cover 9 having a hole 8 in which a hole 8A and an elongated hole 8B are connected is fixed to the outer part of the machine base 1. The shaft 10 is pivotally supported by the cover 9, and a holder 11 is fixed thereto. One end of a SW handle 15 is fixed to the holder 11 through the hole 8 of the cover 9, and a sleeve 14 is loosely fitted to the other end via a spring 13, and a grip 12 is fixed thereto. The hole 8A of the cover 9 is slightly larger than the outer diameter of the sleeve 14, and the elongated hole 8B is smaller than the outer diameter of the sleeve 14 but larger than the outer diameter of the SW handle 15. On the other hand, the shaft 10 is protruded into the inside of the machine base 1, and a cam 16 is loosely fitted into the protrusion, and an operation switch 7 is placed in the position where it engages with the cam 16.
is fixed to machine base 1. A pin B19 and a pin C20 are fixed to the cam 16 at appropriate intervals, and a pin A18 fixed to the shaft 10 is provided so as to be engaged between the pin B19 and the pin C20, respectively. In addition, a notch 21 is provided at the position where the contact element 17 of the operation switch 7 of the cam 16 engages.
is provided.

From when the SW handle 15 is at position A to position B
(in the direction of arrow G in Figure 4), first move the sleeve 14 in the direction of arrow Y, remove it from hole 8A, and move the SW handle 15 to position D, but pin A18 does not hit pin C20. Since the cam 16 does not rotate, the operation switch 7
It remains OFF. When the SW handle 15 is moved from position D to position B, pin A18 changes to pin C2.
0, the cam 16 is rotated and the operation switch 7 is
The contact element 17 enters into the notch 21 of the cam 16 at the same time as it is turned ON. Next, the operation when the SW handle 15 is moved from position B to position A (in the direction of arrow H in FIG. 4) is to move the SW handle 15 to position E.
Even if the cam 16 is moved up to this point, the pin A18 does not hit the pin B19 and the cam 16 does not rotate. Therefore, the operation switch 7 remains ON. Pin A18 that moves the SW handle 15 from position E to position A is pin B
19, rotate the cam 16 and turn the operation switch.
It becomes OFF. At the same time, the sleeve 14 is
Enter 8A. Notch 21 is SW handle 1
When the cam 5 is moved from position B to position E, the cam 16 is prevented from being dragged and rotated by the frictional force of the shaft 10.

[Effect of idea]

According to this invention, the ON position and OFF position of the operation switch are changed, which prevents the operator from making erroneous operations and allows the safety device in the SW handle to take full advantage of its functions, resulting in higher safety. can do.

[Brief explanation of the drawing]

Fig. 1 is a front view showing one embodiment of the safety device of the meat slicer according to the present invention, Fig. 2 is a vertical sectional view taken along the line - - of Fig. 1, Fig. 3 is a top view of Fig. 2, and Fig. 4 is a top view of Fig. 2.
The figure is a left side view of FIG. 2, and FIGS. 5 and 6 are schematic diagrams showing the prior art. In the figure, 1 is the machine base, 2 is the round blade, 3 is the round blade base, 4 is the rail, 5 is the crank device, 6 is the meat box, 7 is the operation switch, 8 is the hole, 8A is the hole, 8
B is a long hole, 9 is a cover, 10 is a shaft, 11 is a holder, 12 is a grip, 13 is a spring, 1
4 is a sleeve, 15 is a SW handle, 16 is a cam, 17 is a contact piece, 18 is a pin A, 19 is a pin B, 20 is a pin C, 21 is a notch, 22 is a cam A, 23 is a corner, X , Y, G, and H are arrows indicating the movement direction, and A, B, C, and D are symbols indicating the position.

Claims (1)

[Scope of utility model registration request] A round blade base supporting a rotatably driven round blade is provided in one corner of the machine base, and a meat box is provided that is driven reciprocally toward the round blade by a crank device on a rail provided on the machine base. An operation switch for driving and controlling the meat box is provided inside the outer shell of the machine base, and a cover having a hole in which a hole and a long hole are connected is provided on the outside of the outer shell of the machine base. The shaft is pivotally supported so as to engage with the operation switch, and a holder is fixed to the shaft, and a SW handle having a grip fixed to one end and a sleeve loosely fitted through a spring is attached to the holder. In a meat slicer fixed by passing through a hole in a cover, a cam is loosely fitted in a position where it engages with an operation switch of a shaft, and is provided so as to engage with an abutment of the operation switch,
Further, a pin A is fixed to the shaft, and a pin B and a pin C are attached to the cam so as to engage with the pin A.
A safety device for a meat slicer, in which the pins A are fixed at intervals so that the pin A is located in the middle thereof, and a notch is provided at a position where the pin A is engaged with the abutment of the cam operation switch.