JPH023512Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] 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. .

[Conventional technology]

Conventionally, this type of shell-digging winch device was
No. 59-91268 (see Utility Model Application Publication No. 61-86943) has been proposed. The above conventional device will be explained based on FIGS. 8 and 9. In the figure, reference numeral 1 denotes a winding drum, which is rotatably attached to a rotating shaft 3 installed on a base 2 and movable a certain distance in the axial direction. 4 is a clutch whose driven body side 4a is integrally formed on the end surface of the winding drum 1, and whose driving body side 4b is fixed to the rotating shaft 3. 5 is 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 coaxial with the pinion 7. The large pulley to be fixed, 10 is the engine placed on the stand 2, 11 is the engine pulley, and 12 is the large pulley 9 and engine pulley 1.
1 and 1, and 13 is a clutch switching mechanism mounted swingably on a horizontal shaft 13a on the table 2, and a tension arm 13b whose central part is fixed to one end of the horizontal shaft 13a, and this tensioner. A foot pedal 13c attached to one end of the arm 13b, a tension pulley 13d rotatably attached to the other end of the tension arm 13b, and a bell crank 13e pivoted to the other end of the horizontal shaft 13a and acting in the vertical direction. and a foot pedal 1 attached to the long end of the bell crank 13e.
3f and a right-angled rod 13g connected to the short end of the bell crank 13e and swung horizontally thereby.
and a pressing rod 13h whose other end is swung in the horizontal direction by a right angle rod 13g with one end pivotally supported on the table 2 as a fulcrum and whose central portion presses the winding drum 1 toward the clutch "in" side. configured. Reference numeral 14 designates a towing rope connected to a shell digging rod (not shown), 15 designates a through hole for the rotating shaft 3 drilled in the pressing rod 13h, and 16 designates a play 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. Since the clutch 4 is always disengaged by the clutch spring 5, in this state the foot pedals 13c, 13f are raised as shown by solid lines in FIG. Now, when you want to scrape up sand with Jyoren, all you have to do is fully depress one of the nearby foot pedals, for example 13f. Fully depress foot pedal 13f (9th
(indicated by a dashed-dotted line in the figure), the right-angled rod 13g is pulled in the direction of arrow 18 by the bell crank 13e, and the pressing rod 13h is pulled in the direction of arrow 18 by the right-angled rod 13g.
When the winding drum 1 moves along the rotating shaft 3 in the direction of the arrow 20 and the clutch 4 engages, the tension pulley 13d is moved by the tension arm 13b toward the dashed line in FIG. Since the belt 12 is sprung up and tension is applied to the belt 12, the winding drum 1 is rotated by the engine 10, and the rope 14 is wound up to draw the belt. When the sandbox is full of sand, the foot pedal 13f is returned one step to a half-clutch state (as shown by the dotted line in the middle of Figure 9), and the sandbox is shaken to remove the sand. In the half-clutch state, the tension pulley 13d does not apply tension to the adjusting band 12, but since the clutch 4 is engaged, the winding drum 1 does not spin idly and the rope 14 does not become slack.
When the jiyoren becomes lighter, fully depress the foot pedal 13f again, pull the jiyoren with the rope 14, scrape up the sand with the jiyoren, and press the foot pedal 13f again.
Push it back one step, make it half-clutched, and shake it. In this way, pull the fish toward you and scoop out only the shellfish.

[Problem that the invention attempts to solve]

In the conventional shell-digging winch device as described above, the clutch 4 is used to connect and disconnect the power to the winding drum 1, so when the clutch 4 is connected, a shock is generated, causing wear and failure, and the power to the winding drum 1 is interrupted. There was a problem that the intermittent process could not be performed smoothly.

This invention was made in order to solve such problems, and the object is to provide a shell-digging winch device that can smoothly interrupt and interrupt power to the winding drum.

[Means for solving problems]

The shell winch device according to this invention includes a planetary gear provided on an arm that rotates together with the winding drum, a sun gear rotated by a tuning band, an internal gear rotatably supported on the machine frame, and It includes a brake drum fixed to a gear, and a brake piece that faces the brake drum and is actuated by a foot pedal.

[Effect]

In this invention, when the foot pedal is in the non-operating position, the brake piece is not activated and the winding drum is allowed to rotate freely together with the brake drum and internal gear, and the foot pedal is in the first operating position. When the foot pedal is in the second operating position, the brake piece fixes the brake drum and the winding drum is fixed without applying tension to the adjustment belt, and furthermore, when the foot pedal is in the second operating position, the brake piece firmly holds the brake drum. Since the winding drum is fixed and tensioned by the tension pulley, the sun gear rotates, and the winding drum is driven, the power can be smoothly switched on and off to the winding drum.

[Example of idea]

1 to 7 are views showing an embodiment of this invention, in which 21 is a casing installed on a stand 22, and 23 is one side wall 21a of the casing 21.
A drum shaft 24 rotatably supported on the drum shaft 23 is a winding drum fixed to one end of the drum shaft 23, on which a rope 25 for towing a shellfish (not shown) is wound. 26 is an arm fixed to the other end of the drum shaft 23;
7 is a planetary gear pivotally supported by the arm 26; 28 is a sun gear meshing with the planetary gear 27; 29 is a rotating shaft having the sun gear 28 at one end and whose intermediate portion is supported by the other side wall 21b of the casing 21; 30; is casing 2
1 and is rotatably supported by a drum shaft 23 and a rotating shaft 29, respectively; 31 is an internal gear provided on the inner peripheral surface of the movable cylinder 30;
mesh with. 32 is a brake drum integrally formed with the movable cylinder 30, and 33 is an inwardly expanding brake piece facing the brake drum 32, which is provided on the other side wall 21b of the casing 21. 34 is a tension spring; 35 is a brake cam that operates the brake piece 33;
The other side wall 21 of the casing 21 by the shaft pin 35a
b is rotatably supported. 36 is a pulley fixed to the other end of the rotating shaft 29, 37 is an engine placed on the stand 22, 38 is an engine pulley, 39 is a tuning belt hooked between the pulley 36 and the engine pulley 38, and 40 is a tuning belt 39. The engaging tension pulley 41 is a foot pedal that operates the tension pulley 40 and is provided on the base 22. 42 is a lever provided on the shaft pin 35a, and is linked to the foot pedal 41 by a tension spring 43. 44 is engine 3
It is connected to the foot pedal 41 by a throttle wire 7.

Next, the operation will be explained. Figures 1 and 2
The figure shows the foot pedal 41 in its inactive position. In this state, the engine 37 is idling, the tension pulley 40 and the lever 42 are not operated, the internal gear 31 is free, and the winding drum 24 is free to rotate.
FIG. 3 shows the foot pedal 41 in the first operating position. In this state, the engine 37 rotates at a low speed, and even if the tension pulley 40 operates, no tension is applied to the adjustment belt 39, and the lever 42
is activated, the brake piece 33 and the brake drum 32 are coupled, and the winding drum 24 is locked to the planetary gear reduction mechanism. FIG. 4 shows the foot pedal 41 in the second operating position. In this state,
The engine 37 rotates at high speed, the tension pulley 40 is further actuated to apply tension to the adjustment band 39, and the lever 42 is further actuated to apply tension to the brake piece 3.
3 and a brake drum 32 are more firmly connected, and the winding drum 24 is driven by an engine 37.

Now, when you want to scrape up sand with a sandbox, you just need to step on the foot pedal 41 to the operating position shown in Figure 2 (Figure 4). Then, the winding drum 24 is driven and the rope 25 is wound up, and the rope 25 is pulled in, making it easier to scoop up sand with the rope. When you shake the sand to remove the sand, move the foot pedal 41 to the first operating position (third position).
It is only necessary to return to the state shown in FIG. At this time, since the winding drum 24 is fixed, the rope 25 will not loosen. In this way, I pull the jyoren towards me and scoop out only the ingredients.

[Effect of idea]

As explained above, this idea uses a planetary gear reduction mechanism and a brake mechanism in combination to enable power to be switched on and off to the winding drum without using a clutch, so power can be smoothly switched on and off to the winding drum. It has the effect of being able to do this.

[Brief explanation of drawings]

Figure 1 is a plan view showing an embodiment of this invention, Figures 2 to 4 are side views of Figure 1, Figure 2 is the non-operating position of the foot pedal, and Figure 3 is the position of the foot pedal. The first operating position, FIG. 4 is the second operating position of the foot pedal, FIG. 5 is a sectional view along the line - of FIG. 1, FIG. This figure is the same sectional view as FIG. 6 showing a braking state, FIG. 8 is a partially cutaway plan view showing the conventional device, and FIG. 9 is a side view of only the main part of FIG. 8. In the figure, 24 is a winding drum, 25 is a traction rope, 26 is an arm, 27 is a planetary gear, 28 is a sun gear, 31 is an internal gear, 32 is a brake drum,
33 is a brake piece, 37 is an engine, 39 is a tuning band, 4
0 is tension pulley, 41 is foot pedal, 4
4 is a throttle wire. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A winding drum for winding up the towing rope of Kaibori Jyoren, a tie belt for connecting this winding drum to a drive source, and a hook that engages with the winding belt. A foot pedal that operates a tension pulley that rotates the winding drum, a planetary gear provided on an arm that rotates together with the winding drum, a sun gear that is rotated by the adjustment belt, and an inner gear that is rotatably supported on the machine frame. A gear, a brake drum fixed to the internal gear, and a brake piece facing the brake drum and actuated by the foot pedal, the brake piece being in a non-operating position when the foot pedal is in a non-operating position. When the take-up drum is not actuated and together with the brake drum and the internal gear rotate freely, and when the foot pedal is in a first actuation position, the brake piece fixes the brake drum and The winding drum is fixed without any tension being applied to the adjusting band, and furthermore, when the foot pedal is in the second operating position, the braking piece strongly fixes the brake drum and the tension pulley The shell digging winch device is characterized in that the tension is applied to the adjusting belt, the sun gear rotates, and the winding drum is driven. (2) The drive source is an engine, the throttle wire of this engine is connected to a foot pedal, and when the foot pedal is in the non-operating position, the engine is at idling speed, and when the foot pedal is in the first operating position. The shell digging winch device according to claim 1, wherein the engine rotates at a low speed, and further, when the foot pedal is in the second operating position, the engine rotates at a high speed.