JPH0124071Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field of the invention] This invention relates to a shell-digging winch device for towing clams during shell-digging work in which clams with a long handle are used to scoop up clams from a ship.

[Prior art] This type of shell digging work is carried out at a water depth of 4 as shown in Figure 4.
From a small boat B with anchor A lowered at ~5 m, one person C operates the Jyoren e, which has a handle d of 8 to 12 m, as if raking up the sand on the seabed, and the other person F operates the Jyoren e. He was helping by pulling a rope G connected to him as Jiyoren E raked him. As described above, unless the shell e is pulled by the rope g, it is impossible for one person to scrape the shell e, and thus this type of shell-digging work had to be carried out by two people in the past, which was a drawback.

[Summary of the invention] This invention was made in order to eliminate the drawbacks of the conventional shell digging work of this type described above, and by motorizing the pulling of the rope, this work can be done by one person. Therefore, it is an object of the present invention to provide a shell digging winch device that can save labor in digging shellfish seeds.

[Embodiment of the invention] An embodiment of the invention will be described below with reference to FIGS. 1 to 3. In the figure, reference numeral 1 denotes a drum, which is rotatably inserted into a rotating shaft 3 installed on a base 2 and movable a certain distance in the axial direction. Reference numeral 4 denotes a clutch, whose driven body side 4a is integrally formed on the end face of the drum 1, and whose driving body side 4b is fixed to the rotating shaft 3. 5 is a clutch spring, 6 is a large gear fixed to the rotating shaft 3, 7 is a pinion that meshes with the large gear 6, 8 is a gearbox of the large gear 6 and pinion 7 placed on the stand 2, and 9 is a pinion. 7 is a large pulley fixed on the same axis, 10 is the engine placed on the stand 2, 11 is the engine pulley, 12 is the adjustment band hung between the large pulley 9 and the engine pulley 11, 13 is the engine placed horizontally on the stand 2 A tension arm 13b is a clutch switching mechanism that is swingably mounted on a shaft 13a, and a central portion thereof is fixed to one end of the horizontal shaft 13a.
and an arm-side foot pedal 13c attached to one end of the tension arm 13b and depressed about the horizontal shaft 13a as a rotation axis and the tension arm 13.
A tension pulley 13d which is rotatably inserted into the other end of b and which engages and disengages in the middle of the adjustment belt 12, and a bell crank 13e which is fixed to the other end of the horizontal shaft 13a and acts in the vertical direction. A crank-side foot pedal 13f is attached to the long end of the bell crank 13e and is depressed with the horizontal axis 13a as a rotation axis, and a right-angled rod 13g and the stand 2 are connected to the short end of the bell crank 13e and are swung horizontally by this. One end that is pivoted on the side is the fulcrum and the other end is a right angle rod 1
The pressing rod 13h is horizontally swung by a pressing rod 13h which presses the drum 1 at its center against the clutch spring 5 toward the clutch "in" side.
Furthermore, reference numeral 14 is a towing rope that is connected to a shell digging rope (not shown), and the beginning of the winding rope is fixed to the drum 1. Reference numeral 15 designates a through hole for the rotary shaft 3 made in the pressing rod 13h, and 16 represents an idle spring provided between the right angle rod 13g and the pressing rod 13h.

This device is fixed by a stand 2 horizontally near the boat edge 17 so that the rope 14 can be let out laterally from the boat edge 17. Then, with engine 10 running, operate the Jyoren near here. Note that the clutch 4 is always disengaged by the clutch spring 5, so in this state the foot pedals 13c, 13f are raised as shown by solid lines in FIG. Now, when raking up sand with a sandbox, all you have to do is press one of the pedals, for example the nearby crank side foot pedal 13f, deeply (to the fullest). When the crank side foot pedal 13f is depressed deeply (as indicated by the dashed line in Fig. 2), the right angle rod 13g is activated by the bell crank 13e.
is pulled in the direction of the arrow 18, the pressing rod 13h is pushed in the direction of the arrow 19 by the right angle rod 13g, the drum 1 moves along the rotating shaft 3 in the direction of the arrow 20, and the clutch 4 is engaged at the same time. , the large rotation caused by the depression of the bell crank 13e is transmitted to the tension arm 13b by the horizontal shaft 13a, and the tension arm 13b becomes as if depressed by the arm side foot pedal 13c, so that the second tension pulley 13d It is flipped up to the position indicated by the dashed line in the figure, and tension is applied to the adjustment band 12.
Therefore, when the clutch 4 is engaged and tension is applied to the adjustment band 12 in this way, the drum 1 is driven by the engine 10 via the adjustment band 12.
A rope 14 is wound around the drum 1 and pulls Jiyoren. When the sand is full of sand, the crank side foot pedal 13f is placed in the neutral position (as shown by the dotted line in the middle of Figure 2, the crank side pedal 13f is depressed lightly), and the sand is shaken out. drop. In this manner, when the crank side foot pedal 13f is in the neutral position,
The clutch 4 continues to be engaged by the pressing force of the pressing rod 13h, but the tension pulley 13
Since the drum 1 does not apply tension to the rope 12 as shown by the dotted line in FIG. It spins idly. When the drum 1 idles in this way, the rope 14 whose winding start is fixed to the drum 1 is wound tightly around the drum 1, so that the rope 14 does not slacken. Therefore, the rope 14 does not slacken during sand-shaking work, and sand-shedding work becomes easier. When the wheel becomes lighter, press the crank side foot pedal 13f deeply again, pull the wheel with the rope 14, scrape up the sand with the wheel, and move the crank side pedal 13.
Return f one step to the neutral position and shake the gear. In this way, I draw Jiyoren towards me and scoop out only the shellfish.

In the above explanation, we have explained the case where the work is performed by depressing the crank side foot pedal 13f.
When the arm side foot pedal 13c is depressed, the rotation of the tension arm 13b is directly transmitted to the bell crank 13e via the horizontal shaft 13a, so the bell crank 13e is activated when the crank side foot pedal 13f is depressed. It performs the same function as when. Therefore, when the arm side foot pedal 13c is deeply depressed or returned one step to the neutral position, the operation is similar to that of the crank side foot pedal 13f described above.

By providing the foot pedals 13c and 13f on both sides of the apparatus in this way, the operator can easily operate the apparatus with his or her feet on either side of the apparatus, making the work even easier.

[Effects of the invention] As described above, according to this invention, by motorizing the rope pulling for shell digging work, shell digging work that conventionally had to be done by two people can be done by one person. The effect of saving labor can be obtained.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway plan view showing an embodiment of this invention, Fig. 2 is a side view of only the main parts of Fig. 1,
FIG. 3 is a perspective view of the clutch switching mechanism, and FIG. 4 is a diagram illustrating conventional shell digging work. In the figure, 1 is the drum, 4 is the clutch, 4a is the driven body side, 4b is the driving body side, 10 is the engine, 12 is the adjustment band, 13 is the clutch switching mechanism, 13c is the foot pedal on the arm side, and 13d is the tension pulley. ,1
3f is a crank side foot pedal, and 14 is a rope. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

[Claims for Utility Model Registration] A rotating shaft installed on a table, a drum that is rotatably inserted into the rotating shaft and movable a certain distance in the axial direction, a driven body provided on the end surface of the drum, and the rotating shaft. A clutch consisting of a driving body fixed to the engine and a clutch spring disposed between the driving body and the driven body to separate them, an engine installed on the platform, a pulley on the engine side, and the driving body of the clutch. a horizontal shaft rotatably supported on the table; a tension arm whose central portion is fixed to one end of the horizontal shaft; an arm-side foot pedal that is attached and is stepped on with the horizontal shaft as a rotational axis; a tension pulley that is rotatably inserted into the other end of the tension arm and that is engaged and disengaged at the middle of the adjustment band; A bell crank fixed to the other end of the shaft and acting in the vertical direction; a crank-side foot pedal attached to the long end of the bell crank and depressed about the horizontal shaft; and a short side of the bell crank. A right-angled rod is connected to the rod and is swung horizontally by the right-angled rod, and the other end is swung in the horizontal direction by the right-angled rod with one end pivotally supported on the table as a fulcrum, and the drum is rotated at the center of the right-angled rod. a clutch switching mechanism consisting of a pressing rod that presses the clutch toward the "in" side against the clutch spring; and a rope for towing a shellfish digging rope whose winding start is fixed to the drum and is wound on the drum. When either the arm-side foot pedal or the crank-side foot pedal is deeply depressed, the horizontal shaft rotates greatly in either case, causing the tension arm and the bell crank to rotate greatly at the same time, A large rotation of the bell crank operates the pressing rod to move the drum and bring the clutch into the "on" state, and a large rotation of the tension arm operates the tension pulley. Tension is applied to the adjustment belt, the drum is driven by the engine so that the rope is wound around the drum, and either the arm-side foot pedal or the crank-side foot pedal is lightly depressed. When in the neutral position, in either case, the horizontal shaft rotates slightly, the tension arm and the bell crank simultaneously rotate slightly, and the pressing rod is operated by the small rotation of the bell crank. Even if the drum is moved and the clutch is in the "on" state, and the tension pulley is operated by a small rotation of the tension arm, no tension is applied to the adjustment band, and the engine does not apply tension to the clutch. A shell digging winch device characterized in that, even when the drum is rotated, there is no driving force to wind up the rope and the drum rotates idly.