JPS6190998A - Fishing-net winding block device by power containing tiltingmechanism balancing fishing net - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a power-driven gutter or pulley device for hoisting a fishing net, such as a purse seine, and will be described with reference to a preferred embodiment and in conjunction with the drawings.

The method of hoisting fishing nets on conventional fishing boat decks, power driven ditch wheels suspended above the docks or mounds has been widely adopted. Swivel from a crane or davit,
A swingably suspended pulley system is biased to either side of the fishing net according to the averageness of the force vectors generated by the tension at the ends of the fishing net. Despite this self-positioning effect of the pulley system, which attempts to keep the fishing net aligned with the groove of the groove wheel, there is a tendency for the floating row side of the fishing net to wind up faster than the sinker row side. As a result, as the ropes of the fishing net become lopsided, the mesh gradually twists and loses its square shape. Therefore, the fishing nets hoisted together with the coordinating lines and floats overlap thickly on one side of the ditch wheel, promoting unbalance. Like this'IQ
'M Hoist imbalance may also be due to constraints on the pulley system or the direction of the fishing net, or even to the pleat pattern created in the fishing net during the hoisting motion. As mentioned above, consideration has been given to the known pulley device to obtain a self-positioning action, but even so, there is a possibility that the hoisting becomes unbalanced and the fishing net gradually twists, and the maximum tensile drive for the fishing net is not possible. 12) On the other hand, it becomes difficult to properly engage the fishing net in the groove of the RFIS vehicle, a necessary condition to minimize the possibility of the fishing net overlapping and jamming the throat of the pulley device. Furthermore, it becomes difficult to remove fish, seaweed, etc., resulting in extra effort for the crew to organize the fishing nets placed on the deck in preparation for the next loading.

In view of these problems especially experienced when hoisting large fishing nets, a pulley device tilting mechanism is adopted to compensate for the tilting of the groove axle of the pulley device when the fishing net tends to gather on either side of the groove wheel during hoisting. has been done. By lifting the side of the groove wheel where the fishing net is offset, the introduced fishing net can be more compactly interlocked with the center of the groove. This known mechanism has a track j0 spanning between both side members of the frame in the -F direction of the pulley system groove wheel, and is supported by a support trolley suspended from a davit or crane and meshing with the track iM. We adopted a hanger bar that is arched in the transverse direction. Cables run downwards from the davit or crane through guides in the trolley to mooring points at each end of the hanger bar. Wind up one side of the two cables,
By letting out the other one, the trolley, and thus the suspension point of the hoisting pulley, were moved on the track, thereby changing the angle of inclination of the pulley.

However, in the light of experience, it has been found that hoisting pulley devices equipped with such cable-type tilting mechanisms are bulky and sometimes the cables become tangled and hoisted up, necessitating the interruption of the loading operation. The above-mentioned situations occurred under marine and meteorological conditions that sometimes made it dangerous or at least inconvenient to resolve the trouble. A rather serious disadvantage of the cable-controlled trolley system is that the tilt of the pulley system may not be accurately and immediately controllable. Since the cable is long and guided along a path with twists and turns, it tends to slacken, and as a result, using the cable to position the loli has become a cumbersome task of successively repeating approximate positioning. Often in emergency situations where precision and immediacy of control is required to change the inclination of a pulley system.
Cable method.

was found not to work satisfactorily. Problems have been experienced with the edges of fishing nets wrapping around the float rows and, in some cases, the sinker rows.

A general object of the present invention is to provide an improved tilt-controllable power-driven fishing net hoisting pulley system which avoids the above-mentioned problems.

The object of the present invention is to provide a pulley structure without unduly increasing the overall height or vertical length of the pulley system and without restricting the space required for unhindered passage of fishing nets through the groove throat. The object of the present invention is to provide a compact fishing net hoisting pulley device including a remotely controlled tilting mechanism that can be incorporated.

Still another object of the present invention is to provide an effective and smoothly operating tilting mechanism for the hoisting pulley device, which is configured to operate effectively under any marine and working conditions in which it must be used. It's about doing.

Points 41 listed below are also objects of the present invention.

The precision, directness and immediacy of the control action of the tilting mechanism, the drive groove suitable for powering the hydraulic or electrical systems employed in modern fishing boats, and the integrated power-driven pulley. The tilting mechanism is not affected by wear over the life of the device.

The power-driven fishing net hoisting pulley device of the present invention includes a transversely extending bridge member whose both ends are connected to both side members of the frame and extends in an arch shape above the pulley device groove wheel.
forming a track that engages the trolley on both sides of the bridge;
It includes a frame structure in which a sector gear is provided parallel to the track on one side. Teeth formed along the top surface of the sector gear form part of the pulley system support trolley and mesh with a small motor-driven pinion that provides direct, immediate, and precise positioning control of the trolley. . Since modern fishing boats are equipped with safe and reliable hydraulic systems to operate winches, etc. (electrical drive components are not preferred in open ocean conditions for obvious reasons), the trolley drive system should be a hydraulic motor. It is preferable that there be.

Note that the motor is a reversible type. The bridge member has trolley restraining pieces at both ends thereof, and also includes reinforcing flanges projecting laterally from both sides along its upper end, both flanges also serving as trolley tracks, and the flange on one side serving as a sector gear. At all moving positions, the 1 to lorry drive pinions are protected from above. In this way, the trolley straddles the bridge member.

Construct a balanced support and drive mechanism.

The lower edge of the bridge member located below the lateral movement path of the pinion has a lateral protrusion that also serves as an upper guide for passing the fishing net through the pulley device and prevents the threads, ropes and floats of the fishing net from coming into contact with the drive motor and pinion. Reinforced by flanges.

It is preferable that the track and the sector gear member are formed in a convex curved arc shape in the direction of 1L, centered on the fishing net groove on the upper side of the groove wheel.
In this regard, the lack of a specific configuration does not affect the basic functionality of the system.

In a preferred embodiment, the annular groove side walls of the groove flare outwardly both forwardly and upwardly into fixed fishing net guide side covers. In the forward direction, the cover spreads out approximately at the groove angle of the groove wheel and then sharply expands into a rounded shape, converging into any expected fan-shaped pattern and smoothly guiding the fishing net as it enters the groove wheel. do. The left and right guide covers are upwardly separated from each other above the groove wheel.The front portion of the guide cover rising from the front edge of the groove width maintains the introduction flare formed by the covers at the height of the groove width.

This guide cover extends upward from the upper edge of the rotary groove wheel to an approximately cross-connected arch-shaped bridge member, which under tension forms a compact column and allows fishing nets, floats and cables to be carried over the groove width. Provides a smooth guide throat with the maximum cross-sectional area necessary for the passage of the float.The composite shape of the groove wheel and guide cover is designed to prevent tension differences in the fishing net line or obstacles that weigh against the passage of the float. This aims to avoid as much as possible damage to the fishing net caused by this, and also to prevent as much as possible the tendency of the floating rows to become entangled in the fishing net when entering and passing through the hoisting wheel, as seen in conventional fishing net hoisting devices. In order to ensure that the nets were stacked correctly when lowered onto the deck for the next load, manual corrections were required almost constantly during the net retrieval process.

In the illustrated embodiment, the active tilt position control of the pulley system brings the fishing net into a ``tidy'' state, which allows for proper stacking and facilitates the removal of seaweed and other foreign matter from the fishing net.

The features and advantages of the present invention will now be described in detail with reference to the accompanying drawings.

As shown in FIGS. 1-4, the fishing net hoisting pulley device may be of a conventional type. This hoisting pulley device has a recessed V
It includes a fishing net engaging groove wheel 10 having a letter-shaped annular groove. The surface of the groove is usually coated with rubber to enhance the tensile effect, but also to allow the fishing net to slip to some extent when it is hung to dry. The groove width is rotatably attached between the side frames 12 and 14. A hydraulic motor 16 with reversing gears attached to one side of the pulley system is used as a drive to work with the groove pulley to rotate it in either direction under operator control. The generally parallel side frames supporting the groove wheel so as to be rotationally driven by the motor 16 each have upwardly extending arms 12a,
14a. Each arm has a bifurcated upper end, and a hole through which a bolt 18 is inserted is formed for attachment in a direction perpendicular to the groove axle. The bifurcated upper ends of the arms, which are spaced apart from each other in the direction transverse to the pulley device, are attached to the bridge member 20;
It is fixed via a bolt 18 at a portion near the bottom edge of the member.

The bridge member and arm are located above the groove wheel and define a throat or passage through which fishing nets are hoisted up by rotation of the groove wheel. The illustrated bridge member has a straight bottom edge 24 with flanges on both sides;
It consists of an elongated web plate 22 having an upwardly curved upper edge 26. The bottom surface of one of the upper edge flanges serves as a track for the support trolley. The arcuate curvature is preferably a circular arc whose center is approximately within the four-way groove space above the groove wheel 10. The bridge member has an insertion hole for a bolt 18,
Two cylindrical protrusions 32 are integrally formed to fit into the two crotches of the arm, and when a nut is tightened at the end of the bolt, the bridge member is fixed between the two crotches of the arm. The bridge member web plate 22 also has short raised edges with flanges on both sides. A trolley stopper 30 of a cushioning material, such as rubber, is inserted into the edges at each end. .

In order to suspend and support the pulley device in a freely tiltable manner, a bridge member 20 acting as an I-negative portion of the frame-like yoke is suspended from a power-driven trolley 3G. The trolley 36 straddles the flanged arcuate upper part of the bridge member in the form of a holding grip which ensures and stabilizes the pulley arrangement with the heavy loads imposed during fishing net hoisting.

The trolley frame consists of two mutually parallel side plates 38,40. An upwardly projecting central hanger plate 42 and shims 44, 4G interposed between the central plate and each side plate form a layered assembly held together by bolts 48.50. Near the lower inner corners of the side plates 38, 40, 39 trolley rollers 52 are arranged upwardly at the flanges 26 on both sides of the upper edge of the web plate 22, which act as 1-rolley tracks.
comes into contact with the bottom surface of The rollers 52 are mounted on short inwardly projecting planting shafts 54 and are located adjacent to the web plate 22.

The trolley 36 is provided on one side of the web plate 22 and includes a hydraulic motor GO as a drive device.
It is equipped with a 1'3-inch drive shaft 62. This shaft supports and drives a pinion 64 disposed in contact with the side of the temporary 22 near the shaft. The pinion meshes with the top tooth row of the sector gear 66 parallel to the upper raceway flange 2G. Sector toothing 66 is secured to the adjacent side of lug plate 22 by bolts or rivets 70. The geared motor 60 itself is fixed to the side plate 40 via mounting brakes 1-72 and anchor poles 1-74.

The motor 60 is suitably connected to a flexible hydraulic hose 60a extending upwardly along a suitable path to a hydraulic control, where the hoisting operation is monitored and controlled. Application of fluid pressure in the form of unidirectional flow through the 411 engine of motor 60 causes the pinion to rotate in one direction, displacing support trolley 3G along track 2G. Reversing the direction of fluid pressure applied to the motor causes the trolley to move in the opposite direction. That is, if the fishing net tends to shift to one side of the ditch wheel during hoisting, as shown in Figure 1,
An operator who observes this state operates a hydraulic motor to move the track flange 26 toward the side where the fishing net of the ditch wheel is biased.
All you have to do is move 1-Lori in one direction along the line. Fourth
As shown by the solid line in the figure, this action causes the side of the fishing net, which had previously been introduced relatively slowly, to shift laterally within the groove of the groove wheel and engage the driven engagement with the outer part of the groove that is moving at relatively high speed. will be sped up. Once the fishing net has settled into the ditch wheel almost symmetrically, reverse the motor and return the pulley device to the neutral position (Figure 1). This is a normal process in which the fishing net is aligned in the groove of the groove wheel and engages the groove in a compact manner, and the threads of the fishing net are compactly integrated to avoid the tendency of the individual threads to break due to excessive stress as much as possible. Preferred working position. By aligning and closely contacting the moving fishing net with the grooves in the groove, the tendency of the fishing net to slip when it is full or to be biased to one side and cause jams is minimized. Therefore, under these conditions, the winding can be carried out efficiently in a biased state as shown in FIG. As is clear from the above description, the motor 60 is utilized only when necessary to restore the symmetrical position and balance of the fishing net passing in column form through the groove wheel.

The use of a small motor-driven pinion to reciprocate the trolley along the bridge member provides directness, immediacy, and accuracy of positioning and tilt control not previously available. Historically, it is preferable that the π11 pressure motor is a drive device with a reduction gear. In this case, even if force is applied to the drive pinion 64 from the outside, the gear train stops the rotation of the pinion. Stability too
It will be done.

As is clear from the drawings, the attachment of the sector gear 66 to the web plate 22 so as to be located below the upper flange 2G also contributes to providing a device that does not become tangled. Although the pinion 64 is provided with a sufficient clearance, this vinyl sub-pin is shielded between the sector gear 6G and one flange in the vicinity of the web plate 22. Even if the serum threads or cables tend to swell into the area of the 1-rolley gear, they will interfere with the gear or break due to the action of the pinion.

will be prevented. The roller 52 can also be shielded by being attached to the inner surface of the 1-roller side plate 38 that engages with the lower surface of the flange 26 as a support track.

The flange (=j) of the bridge member that is spaced one space downward from the trolley device also serves as a shield for the movable part so as not to get entangled with the fishing net passing through the throat of the device, and in this state is maintained regardless of the tilt f-z position of the pulley system, ie, regardless of the trolley position along the track flange 26.

Figures 5 to 8 with changes and improvements/7f! ! l
? 1, the shape and material of the groove 100 may be the same as in the embodiments described above. Bridge member 120 may be the same as the bridge member of the previously described embodiments, except that it is arched upward (also at the lower edge). A sector gear 166 is mounted on one side of the web plate, and along the arcuate upper edge of the bridge member flanges projecting on both sides serve as tracks for the wheels 152 of the support trolley 136. l-
The pinion 164 on the roll 13G side engages with the teeth of the sector gear 166 and is driven by the hydraulic motor 11G to move the track and therefore the bridge member longitudinally in either direction relative to the support trolley.

This modified embodiment differs from the first embodiment in two main points in design. The first is the UN lfK trolley suspension, which has increased durability, strength and compactness. The second is a fishing net guide and a groove wheel suspension mechanism that work together with the fishing net guide, which increases the strength of the suspension tube and minimizes the tendency for the fishing net to become jammed or rolled up when passing through the hoisting device.

The trolley suspension structure consists of parallel frame side plates 200 . connected to each other by bolts 204 . 202, the bolt 2
04 also passes through the bearing 206 between the side plates and is fixed between the side plates, thereby forming a space between the side plates 200 and 202 for sandwiching the bridge member and the upper edge raceway flange 12G. 1 of the side plates; a pair of carriage wheels 152 are supported by implanted shafts mounted near the corners; The bearing 20G has a vertical hole through which the connecting bottle 208 is inserted, and also has a countersunk hole at its lower end into which the head 208a of the bottle is inserted. The bottle rotates freely within the bearing. A polytetrafluoroethylene ("Teflon") reduced thickness washer 17210 is interposed between the bottom surface of the countersunk hole of the bearing 206 and the upper annular shoulder of the head 208a, and the bottle 208
The shank is surrounded by a "Teflon" anti-friction sleeve 212. A retaining plate 214 secured by a set of machine screws threaded into the bottom hole of the bearing 206 surrounding the head of the bolt retains the bolt within the bearing, the upper end of the bolt protruding upwardly from the bottom of the coupling ring 216; It is fixed to the bottom by welding. Ring 21G is connected to a clevis or shackle 218 for pivotally suspending the pulley system from overhead crane 220 and rotatably about suspension bin 208. The universal joint thus constructed is compact and at the same time strong, allowing the pulley system to move freely and correctly position itself relative to the fishing net in response to changing conditions during hoisting.

The bridge member 120 has flanges 123 at both ends, and ears 125 hang integrally from the flanges 123, to which both side members 230 of the pulley frame are attached. 232 is fixed with bolts. Both side members of the frame pivotally support both ends of the groove wheel support shaft 234, and covers M on both sides form part of the moons on both sides of the frame and also act as fishing net guides to shield the groove wheel.
i>'i 236. 238.

The cover 236 is suitably reinforced on its outer surface near the rear of the sheave to accommodate the geared hydraulic sheave drive 116. Immediately inside the outwardly curved rim 101 of the groove wheel 100, the drive pinion 237 meshes with the inner ring tooth @239. The opposite rim of the groove wheel has a similar flange, but this flange is not equipped with gears.

As shown, both side covers 236 are provided on the fishing net introduction side of the pulley device. 238 consists of a plate fitted with moldings 236a, 238a which extend forward from the outwardly curved front rim of the groove wheel to form a rounded inlet generally continuous with the groove side wall. The 5-curved portion of the leading edge molded body of the cover is located at the axial plane, from which it is highly unlikely that the introduction angle of the fishing net to be wound up will extend downward.
It is surrounded along the lower edge of the groove wheel to a position close to Fig. 7).

The convexly curved leading edge of the opposite cover molding extends almost perpendicularly upward from the horizontal axial plane of the groove wheel, and upwardly and rearwardly from the groove wheel rim, almost to the upper edge of each cover, so that it extends almost vertically upward from the horizontal axial plane of the groove wheel, and upwardly and rearwardly from the groove wheel rim, almost to the upper edge of each cover, so that the bridge member ends form a fishing net holding lateral guide up to a height of . In this way, the introduction throat of the pulley device, which has convex surfaces on both sides, guides the fishing net in a circular manner on both sides, and the pulley device is shaped like a column approximately corresponding to the height of the bridge member that forms an arch upward. Compactly summarize passing commercial activities.

h bar 236. 238 are upright tubular reinforcements 240. each having a trailing edge with a rearwardly flared profile and welded as a rounded edge member. It has reached 242. The edge member smoothly guides and protects the fishing net that is pulled out from the pulley device or lowered under the action of gravity from the pulley device to the level of the deck. Above the groove wheel (FIG. 5), a guide cover extends upward to the height of both ends of the bridge member 120 to form a guide surface that smoothly and forcibly guides the fishing net. This guide surface also cooperates with the V-shaped opening of the groove of the groove wheel to maintain and increase the tortoise-like force exerted by the fishing net cross-section on the groove of the channel width to ensure a tensile drive.

Although the present invention has been described above with reference to preferred embodiments, the details of these embodiments are not intended to limit the scope of the present invention, and it is possible to make various design changes without departing from the gist of the present invention. It is. - By way of example only, it is also possible to construct the bridge member not as a single piece but as a multi-piece assembly; the same also applies to the trolley.

Various other design changes are possible within the scope of the appended claims.

[Brief explanation of the drawing]

FIG. 1 shows a fishing net hoisting pulley assembly including the improved tilting mechanism of the present invention, with the pulley assembly suspended in a vertical position, the trolley acting at an intermediate position between the opposite members of the pulley frame yoke, and the fishing net being placed on one side of the pulley. Figure 2 is a front view showing the state where the pulley is tilted to the side of the
Figure 3 is a partially enlarged side view showing details of the tlJ mechanism, Figure 3 is its 11 cross-sectional view, Figure 4 shows the pulley device tilted to eliminate the shifting of the fishing net shown in Figure 1, and the opposite is indicated by a chain line. FIG. 5 is a front view showing an improved embodiment of the pulley device with an improved fishing net guide cover and a support rotation joint (170); FIG. FIG. 7 is a side view thereof, and FIG. 8 is an enlarged side sectional view showing the novel suspension swivel joint incorporated in the improved pulley system.

Claims (14)

[Claims] (1) A groove wheel that allows the fishing net to pass through, and side members that support the groove wheel from both sides so that it can rotate around a central axis, and that extend in a direction intersecting the axis to facilitate guiding of the fishing net to the groove wheel. a hanger member that extends over the groove wheel in an arch shape and connects the both side members for suspending the pulley device; an elongated bridge member having a track member substantially parallel to the axis of the pulley device support trolley having a roller member that rolls in the longitudinal direction of the track member while engaging and supporting the track member; In the fishing net hoisting pulley device configured to be suspended at an angle at various positions along the bridge member with respect to the trolley position due to the rolling of the bridge member, the bridge member extends in its longitudinal direction and the sector gear is substantially parallel to the track member. In addition, the trolley is equipped with a pinion gear that meshes with the sector gear and a reversible pinion drive device that can be remotely controlled, and a groove wheel is provided by supplying driving force to the drive device to drive the pinion in either direction. A fishing net hoisting pulley device comprising a member for changing the inclination angle of the fishing net. (2) Claim 1, characterized in that the drive device is a hydraulic motor that drives the pinion in conjunction with the pinion.
) A fishing net hoisting pulley device as described in item (). (3) the bridge member comprises a horizontally elongated upright web plate, and along the entire length of a substantially horizontal upper edge of the web plate, a track member projects laterally from the upper edge in the form of a horizontal flange; The fishing net hoisting pulley device according to claim 2, further comprising a roller member disposed near the web plate and rolling along the lower surface of the flange-shaped track member. (4) The fishing net hoisting pulley device according to claim (3), wherein a sector gear is attached to one side of the web plate so as to extend in the longitudinal direction parallel to the track member. (5) The upright web plate has flange-like track members projecting laterally from both sides of its upper edge, and the trolley has roller members that roll along the lower surface of each flange-like track member. A fishing net hoisting pulley device according to claim (4). (6) Teeth of the sector gear that engages with the pinion are formed on the upper side of the sector gear, and the pinion that engages with the teeth is interposed between the sector gear and the flange-shaped track member on the same side of the web plate. Claim No. 1 characterized in (
The fishing net hoisting pulley device described in item 5). (7) The web plate has a substantially horizontal lower edge, flanges protrude horizontally on both sides along the entire length of the lower edge, the flanges reinforce the web plate, and the fishing net component that passes through the groove wheel is directed upward. The fishing net hoisting pulley device according to claim 6, characterized in that the fishing net hoisting pulley device is provided with a guide surface that prevents the fishing net from bulging. (8) Each track member that engages with the roller member of the trolley extends in the longitudinal direction in the shape of an upwardly convex curved arc. The fishing net hoisting pulley device described in . (9) Each track member that engages with the roller member of the trolley extends in the longitudinal direction in an upwardly convex curved shape close to a circular arc centered on the groove on the upper side of the groove wheel (
The fishing net hoisting pulley device according to any one of items 2) to (7). (10) Each track member that engages with the roller member of the trolley extends longitudinally in the form of an upwardly convex curved arc, and the lower edge of the web plate is substantially parallel to the track member. The fishing net hoisting pulley device according to any one of items (2) to (7). (11) Both side members of the frame include a fishing net guide cover that converges inwardly in a convex curved shape, the lower part of which extends around the fishing net introduction side of the groove wheel, and a relatively converging inward toward the groove wheel. The fishing net hoisting pulley device according to claim 1, characterized in that a wide fishing net inlet is formed. (12) The groove of the groove wheel has a side wall that widens outward, and the fishing net guide cover covers the upper edge of the groove wheel and projects upward from the upper edge in a direction away from each other. A fishing net hoisting pulley device according to claim (11). (13) The fishing net hoisting pulley device according to claim (12), wherein the fishing net guide cover extends upward from the upper edge of the groove wheel in a flared manner to substantially both ends of the bridge member. (14) The fishing net guide cover has a front edge that extends upward to approximately the height of the bridge member, is rounded in a convex curve, converges rearward, and extends downward to merge with the lower part of the cover. A fishing net hoisting pulley device according to claim (13), characterized in that: