JPS6221435Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a meat slicer that has an improved coupling structure between a crank arm and a crankshaft that reciprocates a meat box.

Fig. 1 is a cross-sectional view of the main parts of the connecting and fixing part between the crankshaft and crank arm of a conventional meat slicer, where 1 is a table, 5 is a crank arm, and 6 is a tapered hole that protrudes from the upper surface of the horizontal table 1. The crank arm 5 is opened in the axial direction of the crankshaft 7 disposed in the direction. 8 is a screw hole formed in the flange portion 10 of the crankshaft 7 concentrically with the position where the taper hole 6 is formed, and 9 is a screw hole having a taper that matches the taper hole 6 and is inserted into the taper hole 6 and screwed into the screw hole 8. It is a tapered bolt. The crank arm 5 is screwed and fixed to the flange portion 10 of the crankshaft 7 via the taper bolt 9 as described above, and is rotationally driven by the crankshaft 7.

In the above-mentioned conventional fastening structure of the crank arm 5 to the crankshaft 7, since a moment about the crankshaft 7 acts relatively between the crankshaft 7 and the crank arm 5, the taper bolt 9 is It must be installed at a distance that is sufficient for strength. Therefore, the crankshaft 7 needs to be provided with a flange portion 10 at the joint between the crankshaft 7 and the crank arm 5, and the crankshaft 7 inevitably becomes thicker. Normally, the crankshaft 7 forms part of a worm reduction device, so providing the flange portion 10 increases the size of the entire reduction device, and is only implemented for large meat slicers in terms of size and cost. However, it had the disadvantage that it could not be applied to small, low-priced products.

The present invention was developed in view of the above-mentioned situation, and the object thereof is to provide a meat slicer that does not require a flange portion on the crankshaft and can be made smaller.

The meat slicer of the present invention includes a table having a rotatably driven round blade attached to its upper surface, a meat box that is reciprocally driven toward the round blade on the table,
a crank arm having one end fixed to a rotationally driven crankshaft and driving the meat box via a connecting rod, and a connecting portion between the crankshaft and the crank arm is connected to the crank of the crank arm. A plurality of tapered holes are provided in a portion fixed to the shaft in substantially the same direction as the radial direction of the crankshaft, a screw hole is formed in the crankshaft concentrically with the tapered hole corresponding to the position of the tapered hole, and the taper hole and A taper bolt having a taper matching the taper hole is inserted into the screw hole and fixed.

Hereinafter, the meat slicer of the present invention will be explained using one embodiment with reference to FIGS. 2 and 3, in which the same parts as the conventional one are denoted by the same reference numerals. FIG. 2 is a side view, and FIG. 3 is a sectional view taken along the - arrow in FIG. In the figure, a round blade 2 is rotatably mounted on a table 1 via a round blade base 11 and is rotatably driven via a drive section (not shown). 3 is a rail fixed on the table 1, and 4 is a meat box, which is reciprocated on the rail 3 to the round blade 2 side via a connecting rod 12 driven by a crank arm 5. As shown in detail in FIG. 2, the connecting portion between the crank arm 5 and the crankshaft 7 is provided with a plurality of tapered holes 6 in the radial direction of the crankshaft 7 in the fixed portion of the crank arm 5 to the crankshaft 7. A screw hole 8 is provided in the crankshaft 7 corresponding to the position of the hole 6 and concentric with the taper hole 6, and a taper bolt 9 that is fitted with the same taper as the taper hole 6 is inserted into the taper hole 6 and the screw hole 8. Inserted into
The crank arm 5 is fixed to the crankshaft 7 by screwing. Therefore, the crank arm 5 is integrally fixed to the crankshaft 7, and the meat box 4 is driven back and forth on the rail 3 via the connecting rod 12.

In this way, in the meat slicer of this embodiment, the taper bolt that fixes the crankshaft and the crank arm is installed in the axial direction of the crankshaft, which necessitates the formation of a flange on the crankshaft. By attaching it in the radial direction of the crankshaft, there is no need to form a flange portion, and the entire speed reduction device and the meat slicer can be downsized, and the manufacturing cost can be reduced since it can also be implemented in a small meat slicer.

As described above, the meat slicer of the present invention is
There is no need to provide a flange portion on the crankshaft, so the size can be reduced, economical efficiency can be improved, and the effect can be implemented even in small-sized slicers.

[Brief explanation of the drawing]

Figure 1 is a vertical sectional view of the main part of the fixing part between the crank arm and crankshaft of a conventional meat slicer,
The figure is a side view of an embodiment of the meat slicer of the present invention.
FIG. 3 is a sectional view taken along the - arrow in FIG. 2. 1...Table, 2...Round blade, 4...Meat box, 5
...Crank arm, 6...Tapered hole, 7...Crankshaft, 8...Screw hole, 9...Tapered bolt,
12...Connecting rod.

Claims (1)

[Scope of utility model registration request] A table with a rotatably driven round blade attached to its upper surface, a meat box that is reciprocated on the table toward the round blade, and one end of which is fixed to a rotatably driven crankshaft through a connecting rod. and a crank arm that drives the meat box, wherein the connecting portion between the crankshaft and the crank arm is provided with a plurality of bolts in a fixed portion of the crank arm to the crankshaft in substantially the same direction as the radial direction of the crankshaft. A taper hole is provided, a screw hole is formed in the crankshaft concentrically with the taper hole corresponding to the position of the taper hole, and a taper bolt having a taper that matches the taper hole is inserted and screwed into the taper hole and the screw hole. A meat slicer characterized by being fixed.