JP4897106B1 - Small boat connecting device - Google Patents

Abstract

The present invention provides a connecting device for aligning a small tugboat and a small tugboat.
A connecting device for small boats includes a fixed column base 4 with an upward projecting shaft 3 having an inclined top surface 2 having a high tip 2a and a low rear end 2b disposed at the rear of the small tug boat. It is fitted in a downward recess 6 having an inclined upper bottom surface 5 that is put on the upper surface of the column base 4, a spring accommodating chamber 8 formed above the downward recess 6 via a partition wall 7, and an upward protruding shaft 3. A horizontally swingable movable body 11 having a through hole 9 in the partition wall 7 and a longitudinal groove 10 with a front enlarged portion 10a behind the spring accommodating chamber 8, a spring receiving plate 12 at the upper end of the upper protruding shaft 3, and a spring receiving plate 12 and a movable body pressing coil spring 14 between the spring housing chamber 8 and the bottom 13 of the spring accommodating chamber 8 and a vertical groove-inserting horizontal bar-like protrusion 16 with a retaining portion 15 to be inserted into the enlarged portion 10a at the front end and the rear end following. And a connecting member 17 fixed to the front portion of the small boat (B).
[Selection] Figure 2

Description

  The present invention relates to a connecting device for small boats.

  As shown in FIGS. 5 and 6, the conventional small boat connecting device (30) includes an upright column (32) provided at the rear portion of the small tug boat (A) and having a spherical portion (31) at the upper end. A horizontal member (34) having an inverted U-shaped cross section having a downward hook-like part (33) fitted over the spherical part (31) from above at the front end, and disposed near the tip in the horizontal member (34), The rear end is a pin (35) and has a reverse U-shaped cross section attached to both side walls of the horizontal member (34) so as to be swingable up and down, and the spherical portion (31) is recessed into a spherical surface extending slightly downward from the middle of the rear surface. A swingable spherical part abutting piece (37) having a spherical front wall (36), and a disk provided at the lower end on the inner surface of the spherical part abutting piece (37) with a small diameter portion passing through the upper wall A vertical bar (39) to which the portion (38) is hooked and which extends from the small diameter portion and extends upward through the horizontal member (34), and a reverse front U (40) ) And the front lower edge is a concave arc shape, and the front and rear are small convex arcs, the rear is a concave arc shape that is gentler behind the rear convex arc part, and the upper end of the vertical bar (39) is between the side walls. An operation piece that is stopped by a pin (41) that is close to the front wall (40) and relatively far from the lower edge of the front part, and is swingable so that it can take a vertical and horizontal posture with the pin (41) as a fulcrum. (42), a coil spring (43) fitted on the vertical rod (39) and disposed between the spherical portion abutting piece (37) and the upper wall of the horizontal member (34), and a horizontal U-shaped horizontal cross section. A front horizontal portion (44) fitted into the member (34) and fixed to both side walls thereof, an intermediate inclined portion (45) extending obliquely downward and rearward from the front horizontal portion (44), and a subsequent small size A rectangular tubular connecting member (47) having a rear horizontal portion (46) fixed to the front portion of the boat (B). When there are a plurality of small boats (B), an upright column (32) having a spherical portion (31) at the upper end is provided at the rear of the preceding small boat (B).

  When the small tugboat (A) and the small tugboat (B) are connected by the connecting device (30) between the small boats, the rear horizontal portion (46) of the rectangular tubular connecting member (47) is previously connected to the subsequent small boat. Attach it to the front of the tugboat (B). When the operation piece (42) in the horizontal member (34) attached to the front horizontal portion (46) of the rectangular tubular connecting member (47) is made vertical as shown by the chain line in FIG. ) Becomes horizontal and presses against the upper wall of the horizontal member (34). As a result, the vertical bar (39) is lowered and the coil spring (43) is extended, so that the spherical portion abutting piece (37) is inclined forward and downward with the pin (35) as a fulcrum as indicated by a chain line. In this state, the lower member (33) at the front end of the horizontal member (34) is fitted from above onto the spherical portion (31) at the upper end of the upright column (32) at the rear of the small tugboat (A). Thereafter, as shown by the solid line, when the operating piece (42) is leveled, the spherical portion abutting piece (37) is pulled up while compressing the coil spring (43) between the upper wall of the horizontal member (34). Accordingly, the concave spherical front wall (36) of the spherical part abutting piece (34) comes into contact with the rear rear lower part of the spherical part (31) at the upper end of the upright column (32), and the spherical part (31) is It is sandwiched between this and a downward hook-like portion (33) at the front end of the horizontal member (34). In this way, the small tugboat (A) and the small tugboat (B) are connected. The leading small rowboat (B) and the trailing small rowboat (B) are connected in the same manner.

  By the way, the small tugboat (A) and the small tugboat (B) connected by using the connecting device have the following problems. That is, as shown in FIG. 7, when berthing at the pier (C), even if the first small tugboat (A) can lay on the pier (C), the following small berths (B) Due to the influence of wind and wind, there was a problem that it was unable to face the same direction as the small boat (A), and could not be laid sideways. When stopping on the water, for the same reason, the small tugboat (A) and the following small tugboat (B) may not be oriented in the same direction, which makes it inconvenient to work on the water. It is fixed to the front part of the connecting member (47) attached to the small boat (B) to the spherical part (31) at the upper end of the upright column (32) at the rear of the small tug boat (A). Since the downward flange-like part (33) of the front end of the member (34) is fitted from above and the spherical part (31) is clamped by the concave spherical front wall (36) of the spherical part abutting piece (37), This is because the concave spherical front wall (36) of the spherical portion abutting piece (37) slides on the spherical portion (31) by the external force applied to the small boat (B). The same applies to the connection between a plurality of small boats (B).

  An object of the present invention is to provide a connecting device for small boats that can always arrange a small tugboat and a small boat to be aligned in a straight line even when there is a tidal current or wind.

  The connecting device for small boats according to the invention of claim 1 is such that when there are a plurality of rear portions of a small tugboat or a plurality of small rowboats, the tip disposed at the rear of the small rowboat is the highest and the rear end is the lowest or the rear. A fixed columnar base having an inclined upper surface with the highest end and the lowest tip and an upward projecting shaft in the center, and a downward recess having an inclined upper bottom surface that is fitted on the upper surface of the columnar base and overlaps the upper surface of the cylindrical base, downward A spring accommodating chamber formed above the recess via a partition, a through hole opened in the partition and fitted to the upper protruding shaft, and formed at the rear of the spring accommodating chamber and opening upward and rearward and front A horizontally swingable movable body having a longitudinal groove with an enlarged portion, a spring receiving plate attached to the upper end of the upper protruding shaft so as to project from the periphery, and a spring receiving plate and a spring housing around the upper protruding shaft Between the bottom of the chamber A movable body pressing coil spring and a connecting member that has a vertical groove-inserted horizontal rod-like protrusion with a retaining portion that can be inserted into the enlarged portion at the front end and a rear end that is fixed to the front portion of the succeeding small boat. Is.

  The invention according to claim 2 is the connecting device between the small boats according to claim 1, wherein the small tow boat is a water motorcycle, and the small boat is a rescue ship, a viewing boat, a material transport boat or a fishing boat. It is.

  The connecting device for small boats according to the present invention has the highest tip disposed at the rear of the small tugboat and the rear end of the small tugboat when the rear of the small tugboat or a plurality of small tugboats are present. A fixed columnar base having an inclined upper surface which is the highest and has the lowest tip and an upward projecting shaft in the center; and a downwardly-facing recess and a downward-facing recess having a sloped upper bottom surface that is fitted on the columnar base and overlaps the upper surface of the columnar A spring accommodating chamber formed above the partition, a through-hole formed in the partition and fitted to the upper projecting shaft, and formed at the rear of the spring accommodating chamber, opened upward and rearward, and with a front enlarged portion A horizontally swingable movable body having a longitudinal groove, a spring receiving plate attached to the upper end of the upper protruding shaft so as to protrude from the periphery, and the spring receiving plate and the bottom of the spring accommodating chamber around the upper protruding shaft Movable body interposed between Since it has a coil spring for pressure and a connecting member that has a vertical groove-inserted horizontal rod-like projection with a retaining part that can be inserted into the enlarged part at the front end, and a rear end that is fixed to the front part of the succeeding small boat. The small tugboat and the small tugboat connected by the coupling device are such that when the small tugboat turns left or right, the rear end of the small tugboat is fixed to the front of the subsequent small tugboat horizontally. The rod-shaped projecting part is a left-and-right centered on the upper projecting shaft while compressing the horizontally swingable movable body of the small tug boat with the coil spring on the fixed column base with the inclined upper surface with the spring receiving plate at the upper end of the upper projecting shaft Or swing it to the right to make the small boat a smooth turn. When the small tug goes straight again, the movable body returns to the original state as the compressed coil spring is restored, and the subsequent small tugboats are aligned with the small tug in a straight line through the connecting member. Therefore, both boats can be docked side by side on the pier. And since a movable body is always pressed by the coil spring, a small tow boat does not move in a different direction from a small tug boat by a tidal current or a wind.

It is a top view of a small tugboat and a small barge connected by using the connecting device of the present invention. FIG. 2 is an enlarged cross-sectional view taken along line II-II in FIG. 1. It is a disassembled perspective view of the connecting device of the present invention. FIG. 3 is a cross-sectional view of the coupling device corresponding to FIG. 2 when the small boat is moved to the position of the chain line in FIG. 1. It is a side view of the small tow boat rear part and the small tow boat front part which were connected using the conventional connecting device. It is a principal part expansion vertical sectional view of the conventional connecting device. When a small tugboat connected using a conventional coupling device is laid on the pier, a plurality of subsequent small tugboats do not face the same direction as a small tugboat in plan view due to the influence of tidal current and wind, It is a top view which shows the state which has become diagonal.

  FIG. 1 to FIG. 4 show an embodiment of the present invention. The connecting device (1) between small boats has the tip (2a) arranged at the rear of the small tow boat (A) which is a water motorcycle. A fixed columnar base (4) having an inclined upper surface (2) whose rear end (2b) is the lowest and having an upward projecting shaft (3) in the center, and a columnar base (4) ) Having a sloped upper bottom surface (5) that is overlaid on the upper surface of the lower recess (6), a spring accommodating chamber (8) formed above the downward recess (6) via a partition wall (7), and a partition wall (7 ) And a circular through hole (9) fitted in the upward projecting shaft (3) and formed at the rear of the spring accommodating chamber (8), opened upward and rearward, and with a front enlarged portion (10a). A horizontally swingable movable body (11) having a longitudinal groove (10), a spring receiving plate (12) attached to the upper end of the upper projecting shaft (3) so as to project to the periphery, and an upper projecting shaft ( 3) and spring support A movable body pressing coil spring (14) interposed between (12) and the bottom (13) of the spring accommodating chamber (8), and a vertical groove fitting with a retaining member (15) inserted into the enlarged portion (10a). And a connecting member (17) having a horizontal bar-like projecting portion (16) at the front end and a rear end fixed to the front portion of the succeeding small boat (B). The fixed column base (4) is provided on a rectangular flat plate mounting plate (18) attached to the rear part of the small tugboat (A). The spring accommodating chamber (8) is provided with a removable lid (19). The vertical groove-inserted horizontal bar-like protrusion (16) is circular in cross section and the tip (15) of the tip is spherical with a larger diameter than that, and accordingly the upper end of the vertical groove (10) has a spherical stopper (15). It expands in a funnel shape for easy insertion. The spring receiving plate (12) is circular and is fixed by a set screw (22) screwed into a screw hole (21) drilled at the upper end of the upper protruding shaft (3) through a through hole (20) drilled in the center. Has been. The movable body pressing coil spring (14) is on a flat annular ring (23) fitted to the upward projecting shaft (3) and arranged on the bottom (13) of the spring accommodating chamber (8). The ring (23) may be omitted. The connecting member (17) is a rectangular tube, and a rectangular parallelepiped portion (24) at the rear end of the horizontal rod-like projection (16) fitted into the longitudinal groove is fitted at the tip of the connecting member (17). The bolt (25) is screwed through the four-wall through hole of the square tube connecting member (17).

  The small tugboat (A) and the small tugboat (B) connected by the above-mentioned connecting device are arranged so that when the small tugboat (A) turns counterclockwise as shown in FIG. As shown in FIG. 4, the rod-like protrusion (16) is a movable body (11) that can swing in the horizontal direction of the small tugboat (A), and a coil spring (14) on a fixed column base (4) with an inclined upper surface (2). ) With the spring receiving plate (12) at the upper end of the upper projecting shaft (3) and rotating to the left about the upper projecting shaft (3), and the rear end of the connecting member (17) is fixed to the front. Turn the subsequent small boat (B) to the left. The coil spring (14) is compressed because the rear end of the movable body (11) on the lowest rear end (2b) of the inclined upper surface (2) of the fixed column base (4) is inclined upper surface (2). This is because it moves to a position (2c) higher than the rear end (2b) of the periphery. Of course, where the rear end of the movable body (11) moves on the periphery of the inclined upper surface (2) depends on the rotation of the movable body (11), but until the highest tip (2a) position is reached. As the movable body (11) rises as a result of this movement, the coil spring (14) is always compressed by the upper spring receiving plate (12).

  When the small tug boat (A) goes straight again, the movable body (11) descends to the right while descending as the compressed coil spring (14) is restored, and returns to the original state. Through (17), the subsequent small boat (B) is aligned with the small tug boat (A) in a straight line in plan view.

In this embodiment, the inclined upper surface (2) of the fixed column base (4) has the highest tip (2a) and the lowest rear end (2b), but conversely the lowest tip (2a) and the rear end (2b). ) Is the highest even if it is the highest.

(A) Small tugboat
(B) Small barge
(1) Connecting device between small boats
(2) Inclined upper surface of fixed column base
(2a) Tip of the inclined top surface
(2b) Rear end of inclined top surface
(3) Upward protruding shaft
(4) Fixed column base
(5) Inclined upper bottom surface of downward recess
(6) Downward recess
(7) Bulkhead
(8) Spring chamber
(9) Through hole
(10) Vertical groove
(10a) Front enlarged part of flutes
(11) Movable body
(12) Spring backing plate
(13) Bottom of spring storage chamber
(14) Movable body pressing coil spring
(15) Retaining
(16) Horizontal bar-like protrusion with vertical groove
(17) Connecting member

Claims (2)

  When there are multiple small tug boats on the rear upper surface or on the rear upper surface of the small tugboat, the inclined upper surface with the highest tip and the lowest rear end or the highest rear end and the lowest tip A fixed column base having an upper protruding shaft in the center, a downward recess having an inclined upper bottom surface that is fitted on the column base and overlapped with the upper surface of the column base, and is formed above the downward recess via a partition wall. Horizontal swing having a spring housing chamber formed therein, a through-hole formed in the partition wall and fitted in the upward projecting shaft, and formed in the rear of the spring housing chamber and opening upward and rearward and having a longitudinal groove with a front enlarged portion. A freely movable body, a spring receiving plate attached to the upper end of the upward projecting shaft so as to protrude from the periphery, and a movable member interposed around the upper projecting shaft and between the spring receiving plate and the bottom of the spring accommodating chamber Coil spring for body pressing and expansion Coupling system for a small boat between the stop with longitudinal grooves fitted horizontal bar-like protrusion exit is placed has a tip and a rear end has a connecting member for being fixed to the front of the subsequent small target 曳舟 to.   The connecting device for small boats according to claim 1, wherein the small tug is a water motorcycle, and the small boat is a rescue ship, a viewing boat, a material carrier boat or a fishing boat.

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