RU2743259C1 - Rowing device for rowing with the face in the direction of the vessel movement - Google Patents

Abstract

FIELD: shipbuilding.

SUBSTANCE: invention relates to the field of shipbuilding and can be used on small-sized row boats moving on water using muscular force. A rowing device for rowing with the face in the direction of movement of the vessel contains a handle-lever attached with a hinge to a side of the boat's hull, movably mounted on the oarlock, made with the possibility of pendulum movement parallel to the upper surface of the oarlock support strip, a slider with an L-shaped bar fixed on it, a blade rigidly fixed at the end of the L-shaped rod perpendicular to its vertical axis, a rod having an arc-shaped shape and movably attached on hinges to the handle-lever and slider; two parallel guide rails closest to the bow of the boat's hull, the ends of which are rigidly attached to the oarlock, and in their middle part a slider is movably fixed with rollers installed between its upper and lower plates and providing the ability to move the slider by means of traction along the guide rails.

EFFECT: increased efficiency of muscular force use during rowing and the use of the vessel’s operational capabilities.

1 cl, 7 dwg

Description

The invention relates to the field of shipbuilding and can be used on small rowing vessels moving through the water using muscular strength.

In the practice of building small boats, based on the principle of their movement using muscular strength, oars installed in oarlocks on the sides of the ship are used as the main mechanism for rowing, which are set in motion by one or more rowers facing the opposite direction to the direction of the ship's movement. Despite the simplicity of such mechanisms, they have one common drawback - the lack of the ability to continuously monitor the direction of movement of the vessel and precise control of its maneuvering, which causes difficulties when moving through a narrow and winding water space. For such conditions of navigation, vessels equipped with oars for rowing forward are preferred.

When reviewing the technical literature, a number of technical solutions related to the specified problems were identified.

Known rowing vessel containing a hull mounted on the axis of the vessel, adjustable in height oarlocks, an even number of swinging single-bladed oars with rollers, each of which is fixed at its end on the corresponding oarlock (utility model patent RU 109093, class B63H 16/00, publ. 10.10.2011, bulletin No. 28).

The disadvantages of this vessel are:

the difficulty of regulating the depth of immersion of the oars during the stroke and return to the starting position without touching the surface of the water, which entails additional expenditures of physical efforts;

limited opportunities for movement in narrow water areas due to the long length of the oar;

insufficient efficiency due to the arcuate trajectory of the oar blade in relation to the length of the straight segment from the point of entry of the blade into the water to the point of its exit from the water in one stroke;

the need to allocate significant space for the placement of oarlocks and to ensure a free trajectory of the oars in the inner cavity of the vessel, which reduces the size of its useful area.

There is a known device for rowing facing forward, containing a vertical axis, an oar with a handle, a swing arm and a frame, the oar is installed so that the oar handle is located between the vertical axis around which the swing arm oscillates and the axis around which the oar oscillates in a vertical plane, if viewed in the horizontal plane, and the axis around which the oar oscillates in the vertical plane is motionless relative to the oar and bracket in the horizontal plane, the oar handle is rotatable in the plane of the oar hinge axis and oar axis, the device is removable (patent for invention RU 2586998, cl . В63Н 16/10, publ. 10.06.2016, bul. No. 16).

The disadvantages of this device are:

limited opportunities for movement in narrow water areas due to the long length of the oar;

insufficiently high efficiency, due to the arcuate trajectory of the oar blade in relation to the length of the straight segment from the point of entry of the blade into the water to the point of its exit from the water in one stroke;

the need to allocate significant space for the placement of the brackets and the vertical axis with the bushing, which reduces the size of the useful area of the boat.

The closest to the claimed invention is an articulated oar containing a handle with half-gears of engagement, a rod with half-gears of engagement and with lugs with vertical coaxial axes made at its other end, a lever at the bottom of which a vertical bracket is attached, a rod attached on one side pivotally to the arms of the lever, and on the other - to the axis on the slewing bar, attached to the horizontal and parallel to the boat axis by the oarlock, fixed to the brackets of a small vessel or to its side, the bracket is fixed at the bottom of the lever and is made in a streamlined tubular rectangular horizontal section, in the lower front corner of the wide sides of which two coaxial holes are made in which a blade is pivotally attached to the horizontal axis, a compression spring, dressed on a thrust and resting on top of the lower edge of the lever (patent for invention RU 2279993, class В63Н 16/10, publ. 20.07.2006, bulletin . No. 20).

The disadvantages of this paddle are:

limited opportunities for movement in narrow water areas due to the long length of the oar;

insufficiently high efficiency, due to the arcuate trajectory of the oar blade in relation to the length of the straight segment from the point of entry of the blade into the water to the point of its exit from the water in one stroke

The problem solved in the invention is to eliminate these disadvantages by developing the design of the oar device for rowing with the face in the direction of the ship's movement, which makes it possible to reduce the width of the oars' working zone outside the ship and the rectilinear trajectory of their movement required for oars operation.

The technical result of the invention is to increase the efficiency of the use of muscle strength when oars are working and the operational capabilities of the vessel when it moves through a narrow and winding water space.

The problem is solved, and the technical result is achieved as a result of the fact that, according to the invention, the oar device for rowing with the face in the direction of movement of the vessel contains a lever handle attached on a loop to the side of the ship's hull, movably mounted on the oarlock, made with the possibility of pendulum movement in parallel the upper surface of the oarlock support strip, a slider with an L-shaped bar fixed on it, a blade rigidly fixed at the end of the L-shaped bar perpendicular to its vertical axis, an arcuate rod and movably hinged to the lever handle and the slider, two parallel guide rails, the ends closest to the bow of the ship's hull, the ends of which are rigidly attached to the oarlock, and in their middle part a slider is movably fixed with rollers installed between its upper and lower plates and providing the ability to move the slider by means of traction along the guide rails.

The invention is illustrated in FIG. 1-7.

FIG. 1 schematically shows a boat with paddles mounted on it for rowing facing forward, general view.

FIG. 2 schematically shows a rowing device for rowing facing forward, top view in the initial phase of the row.

FIG. 3 schematically shows a rowing device for rowing facing forward, top view in the intermediate phase of the stroke.

FIG. 4 schematically shows the oarlock of a rowing device for rowing facing forward when rowing.

FIG. 5 schematically shows the oarlock of a rowing device for rowing facing forward when the slider moves to its initial position.

FIG. 6 schematically shows the slide of the oar device for rowing facing forward when rowing.

FIG. 7 schematically shows the slider of the rowing device for rowing facing forward when the slider moves to the initial position.

FIG. fig. 1-7, the following designations are used:

1 - ship's hull;

2 - lever handle;

3 - oarlock;

4 - L-shaped bar;

5 - slider;

6 - thrust;

7 - guide rail;

8 - fixing bar;

9 - hinge;

10 - support bar;

11 - clamping bar;

12 - tip;

13 - loop;

14 - emphasis;

15 - top plate;

16 - bottom plate; 17-roller;

18 - blade.

The paddle paddle for rowing with the face in the direction of movement of the vessel works as follows.

When installing the oarlock 3, its support bar 10 is rigidly connected to the clamping bar 11, between them, along their edges, the ends of the two guide rails 7 are rigidly fixed, ensuring the parallel arrangement of the guide rails 7 relative to each other. On the support strip 10 of the oarlock 3, a tip 12 is installed with a handle-lever 2 fixedly attached to it, providing the possibility of pendulum movement of the handle-lever 2 parallel to the upper surface of the support strip 10. A loop 13 is fixedly attached to the lower part of the side surface of the clamping strip 11 and fixed on the side part of the ship's hull 1. The stop 14 is rigidly attached to the lower part of the loop 13 in a position at which, in the stroke phase, the clamping bar 11 of the oarlock 3 should be in a plane maximally parallel to the water surface. The free ends of the guide rails 7 are fixed by installing a fixing strip 8 on them.

When mounting the slide 5, rollers 17 are movably mounted on its bottom plate 16, ensuring their position in which each guide rail 7 is located between two opposite rollers 17. In total, at least two pairs of rollers 17 are installed with each of the parallel guide rails 7 sides of the lower plate 16. The upper plate 15 of the slider 5 is installed over the guide rails 7 and the free ends of the rollers 7 are movably attached to it.

The lever handle 2 and the slider 5 are movably interconnected by a rod 6, which is made in an arched shape, ensuring the position of its convex part towards the guide rails 7. In this case, one end of the rod 6 is fixed by means of a hinge 9 on the lever handle 2, closer to the place of capture by the rower, and the opposite end, also on the hinge 9, - at the corner of the upper plate 15 of the slider 5, facing towards the bow of the ship's hull 1 and closest to its side.

On the upper plate 15 of the slider 5, an L-shaped rod 4 is fixedly fixed with a blade 18 rigidly fixed at its end, perpendicular to its vertical axis.

When performing the stroke, the rower's hands are installed on the lever handle 2, at the designated place, and the lever handle 2 is turned in the direction opposite to the direction of movement. Under the influence of the muscular force applied at the same time in the process of turning the handle-lever 2, the slider 5 is moved towards the aft part of the ship's hull 1 by means of the kinematic connection of the tip 12, the rod 6 and the hinges 9, as well as the rigid connection of the support 10 and the clamp 11 of the oarlock strips 3 s guide rails 7 and fixing the loop 13 on the side of the ship's hull 1. As a result of the interaction of the blade 18 on the L-shaped rod 4 with water, the ship's hull 1 is moved along the water surface in a predetermined direction, providing a straight path of the blade 18 due to the interaction of the rollers 17, installed between the upper 15 and lower 16 plates of the slider 5. After the slider 5 comes into contact with the fixing bar 8, using the lever handle 2, turn the oarlock 3 on the loop 13, moving the stop 14 from the side surface of the ship's hull 1, and move the slider 5 to its original position. Turn the lever handle 2, the oarlock 3 on the hinge 13 in the opposite direction until the stop 14 touches the side surface of the ship's hull 1. If it is necessary to move the ship's hull 1 backward or turn it, these actions are performed in reverse order.

Thus, as a result of the implementation of the proposed technical solution, it is possible to increase the efficiency of the use of muscular strength when operating the oars and the operational capabilities of the vessel when it moves through a narrow and winding water space by providing the possibility of reducing the width of their working area required for the operation of the oars outside the vessel and the rectilinear trajectory their movements.

Claims (1)

A paddle device for rowing facing in the direction of movement of the vessel, containing a lever handle attached on a loop to the side of the ship's hull, movably mounted on the oarlock, made with the possibility of pendulum movement parallel to the upper surface of the oarlock support strip, a slider with an L-shaped bar fixed on it , a blade rigidly fixed at the end of the L-shaped rod perpendicular to its vertical axis, a rod having an arcuate shape and movably connected on hinges to the lever handle and the slider, two parallel guide rails closest to the bow of the ship's hull, the ends of which are rigid attached to the oarlock, and in their middle part a slider is movably fixed with rollers installed between its upper and lower plates and providing the ability to move the slider by means of traction along the guide rails.

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