JPH0321912Y2 - - Google Patents

Description

[Detailed description of the invention] This invention involves moving a meat box loaded with ingredients back and forth toward a rotating round blade that stands upright on one side of the machine base, and then moving the meat fed out onto the front end of the meat box. Regarding a meat slicer for slicing.

Traditionally, this type of slicer is supported by a crank arm fixed to a crankshaft that transmits power to the motor via a worm mechanism, and a guide rail that is horizontally suspended parallel to the rotating surface of the round blade, allowing it to slide freely on the machine base. By connecting the meat box installed with the connecting rod,
The structure is such that the meat box returns quickly by converting one rotation of the worm wheel into one reciprocating motion of the meat box, and by making the traveling locus of the connecting part on the meat box side eccentric from the center of rotation of the crank. . Due to the eccentricity of the meat box mentioned above, a particularly large range of resistance is created in the crank arm from the end of the forward stroke to the beginning of the backward stroke. Correspondingly, there are areas that are particularly prone to wear, which often impairs the smooth running of the meat box. Traditionally, in cases like this, the angle at which the crank arm is attached to the crankshaft has been changed, but since the crankshaft is round, fastening with screws alone is insufficient. If a key pin was used, it was necessary to cut the key groove again.

Therefore, in order to eliminate the above-mentioned conventional drawbacks, the present invention uses a polygonal shaft joint structure in which the attachment angle of splines or serrations can be freely changed for the joint structure between the crankshaft that drives the meat box and the crank arm. Thus, a meat slicer is provided in which the mounting angle of the crank arm can be easily changed in response to partial wear of the worm wheel.

Examples will be described below with reference to the drawings.

In the figure, A is a round blade that is installed on one side of the machine base F and rotates by being driven by a motor Ma, and B is a round blade that is installed on one side of the machine base F.
A meat box is slidably supported on the guide rail 1 on the upper surface, 2 is a gearbox installed in the machine base F alongside the motor Mb, and 3 is a worm 3a built in the same box 2 and driven by the motor Mb. A worm mechanism includes a worm wheel 3b, and 4 is a crankshaft to which the worm wheel 3b is fixed and whose upper portion protrudes above the gear box 2. Reference numeral 5 designates a polygonal joint structure, which includes a spline shaft 5a formed along the upper end of the crankshaft 4 in the vertical direction, a crank arm 6 whose one side fits into the spline shaft 5a, and a crank arm 6 connected to the spline shaft 5a. It is comprised of a fastening screw 9 for fixing to the spline shaft 5a. 7 is a connecting rod that connects the other side of the crank arm 6 and the bottom of the meat box B.

As shown in FIG. 2, the crank arm 6 has a vertical slit extending diametrically across the boss portion 6' together with the spline shaft hole 5b formed on one side of the crank arm 6 from the rear end surface (right hand side in the figure). 8, and a pair of left and right fastening screws 9 which are orthogonal to the slit 8 with the spline shaft hole 5b in between.

Then, the spline shaft hole 5b is inserted into the spline shaft 5a.
After fitting, the fastening screw 9 is tightened to firmly fix it on the coaxial shaft 4. That is, the means for freely changing the mounting angle of the crank arm 6 is comprised of the slit 8 and the fastening screw 9.

In carrying out the present invention, the joint between the crankshaft and the crank arm is not limited to a spline; it is also possible to use a polygonal shaft joint such as a serration or a square shaft with a polygonal cross section.

According to the present invention configured as described above, the mounting angle of the crank arm can be changed to cope with partial wear of the worm wheel by changing the fit of the polygonal joint, making the operation extremely easy. Moreover, there are practical effects such as being able to sufficiently fasten the crank arm after changing the mounting angle.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway elevational view showing an embodiment of the present invention, and FIG. 2 is a plan view of a crank arm used in the embodiment. F... Machine stand, A... Round blade, B... Meat box, 1...
Guide rail, 2... Gearbox, 3... Worm mechanism, 3a... Worm, 3b... Worm wheel, 4... Crankshaft, 5... Polygonal shaft joint structure, 5a... Spline shaft, 5b... Spline shaft Hole, 6...crank arm, 6'...boss part,
7... Connecting rod, 8... Slit, 9... Fastening screw, Ma, Mb... Motor.

Claims (1)

[Scope of utility model registration request] In a meat slicer, a meat box B loaded with ingredients is moved back and forth toward a rotating round blade A that is set up on one side of a machine base F, and the meat box B is moved back and forth by a worm mechanism 3. Driving crankshaft 4
A meat slicer characterized in that a polygonal shaft joint structure 5 in which the mounting angle of splines, serrations, etc. can be freely changed is used for the joint structure between the and the crank arm 6.