CN112135773A

CN112135773A - Vertical oar

Info

Publication number: CN112135773A
Application number: CN201980027363.5A
Authority: CN
Inventors: 沃纳.科瓦里克
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-02-23
Filing date: 2019-02-11
Publication date: 2020-12-25
Also published as: WO2019161423A1; US20200398962A1; AT520642A4; AT520642B1; EP3755621A1

Abstract

A vertical paddle is described herein having a handle (3) arranged between the paddle (1) and the handle member (2). In order to design the vertical paddle in such a way that, in particular, it is also possible to carry out the rowing on the vertical paddle board by an untrained user without the risk of losing balance, it is proposed that the grip element (2) be mounted on the end of the shaft (3) opposite the paddle (1) by means of a tensile, flexurally elastic connecting element (4).

Description

Vertical oar

Technical Field

The invention relates to a vertical paddle having a handle bar arranged between the paddle and the handle member.

Background

From the prior art, vertical paddles are known, which comprise a handle bar arranged between the blade and the handle piece and which serve as manual driving and control pieces in connection with so-called vertical paddles (SUP boards) (WO 2016156274 a 1). When using such SUP-boards, it is natural to be in a driving position, whereby in a stable equilibrium position standing on the board, both the user's scapular band and the pelvic band parallel to the scapular band are at right angles to the direction of travel or the longitudinal direction of the board. The vertical paddles known from the prior art therefore have the following disadvantages: when performing the rowing, the balance of standing on the board can be maintained only in the case where the trunk muscles and leg muscles of the user are strenuous, or in the worst case, the user falls down because the body center of gravity of the user is out of the balance position due to the rotation motion and the tilting motion of the upper body. Thus, a satisfactory driving experience for the user is generally only available to well-trained water athletes with outstanding balancing skills.

Disclosure of Invention

The object of the invention is therefore to design a vertical paddle of the type mentioned at the outset such that the rowing on the vertical paddle board can be carried out in particular also by untrained users without the risk of losing balance.

The invention solves this problem by the fact that the grip element is attached to the end of the shank opposite the blade by means of a tensile, flexurally elastic connecting element.

The invention is based on the recognition that when rowing is carried out with vertical paddles, the paddles sink into the water and squeeze the water against the direction of travel, so that the water exerts a reaction force on the paddles, which in turn needs to be balanced by a holding force directed in the direction of travel. The paddle here forms a lever, so that the active drive of the user holding the handle is shown as a point of rotation, which divides the handle of the paddle into two lever arms, after which the holding force required for balancing is introduced into the handle-side handle section in such a way that the passive actuating handle holding the handle piece counteracts a tilting of the handle-side handle section back against the direction of travel. For this purpose, the grip element needs to be connected to the shank via a tensile connecting element. Since the attachment piece according to the invention is also designed to be flexurally elastic, the handle piece no longer needs to be located on the line of connection with the shank and the blade, but can be offset from this line of connection in the case of a plane of action defined between the handle piece, the shank and the blade. Accordingly, when performing rowing, that plane of action moves substantially only parallel to the plane of the front of the body of the user standing on the board, so that the scapular band and the pelvic band can be maintained in their stable equilibrium positions. An additional, laborious balancing movement of the user standing on the board, which is usually required in order to be able to maintain the balance standing on the board while performing the successive strokes, can thus be dispensed with. By virtue of the features according to the invention, in particular, a stable standing on the board can be achieved during the practice of the rowing, so that the movements on the standing paddle are overall controllable and therefore also untrained users can travel safely on the water surface with less effort and with a reduced risk of falling through the standing paddle.

In order to allow a simple and rapid change of the edge or a simple change of the actuating and driving hand with respect to the active side of the blade by means of the inventive propeller, it is proposed that the connecting element is designed to be self-supporting. Due to this feature, the grip element can be arranged on the paddle in the same position relative to the handle bar in the case of a two-handed grip required for the purpose of carrying out the change of edge, as a result of which the grip element or the handle bar can be gripped more quickly and more simply again by the changing manipulator or driving hand, since additional adjustment movements that endanger the equilibrium position of standing on the plate are thereby avoided for the user to reorient the grip element during the change of edge of the paddle.

In order to ensure the tensile strength required according to the invention for transmitting the holding force, the bending elasticity for flexibility in the handle position and the design of the self-supporting structure of the connecting element, a suitable material for the connecting element needs to be selected. The difficulty lies in that: materials such as ropes, while having tensile and bending elastic properties, do not form self-supporting structures.

A particularly advantageous construction condition therefore arises if the connecting element comprises a plurality of connecting elements which are pivotably connected to one another about at least one axis extending transversely to the connecting direction. The connecting element thus designed can be designed to be self-supporting by appropriately selecting the pretensioning force between the elements or by providing friction surfaces. Alternatively or additionally, the pivoting angle of the elements can be adjusted by suitably selecting the spacing of the elements relative to one another, so that the elements can pivot to some extent relative to one another until the elements block one another in the case of a self-supporting structure. It is also conceivable for the connecting elements to be designed such that they each have a housing in one connecting position and a bearing (pfane) in the other connecting position, whereby the elements are pivotably connected to one another by means of ball joints.

In order to be able to ensure the self-supporting effect of the connecting element independently of the core provided for the required tensile strength, it can be provided according to the invention that the connecting element has a support sleeve. The material of the support sleeve can advantageously be selected such that, on the one hand, the bending elasticity of the connecting element is not impaired, and, on the other hand, the support sleeve has at least such a high dimensional stability that it can form a self-supporting construction of the connecting element. In this case, the connecting elements which are freely movable relative to one another can be provided, for example, as core pieces of the connecting element, in order to achieve sufficient tensile rigidity and bending elasticity, while the bearing sleeve imparts the self-supporting character to the connecting element.

In the case of a handle part with a high bending stiffness, if this is required for a sufficient tensile strength with the material choice made, but in order to also be able to provide the user with a sufficient freedom of movement, it is proposed that the handle part be connected to the connecting element pivotably about its transverse axis.

In order to be able to carry out the change of edge more efficiently, it is proposed that the connecting element be mounted on the shank so as to be rotatable about the longitudinal axis of the shank. Thus, the user only has to let the actuating hand release the grip element and lift the paddle with the driving hand holding the handle bar to the other side of the plate while performing a slight tilting movement when changing sides. The longitudinal axis of the paddle is thereby inclined in such a way that the handle part can be rotated by its own weight under the influence of gravity into the correct control position from this point on. The previously free manipulating hand can then grip the handle bar as a new driving hand, wherein the original driving hand thus grips the grip element as a new manipulating hand. The edge change of the paddle can thus be realized more simply. In order to increase this effect, additional weight can be arranged in the handle part, in particular in an edge region of the handle part facing away from the handle bar.

Drawings

The figures show an exemplary embodiment of the invention and a partially sectioned front view of an embodiment of a vertical paddle according to the invention.

Detailed Description

The vertical paddle according to the invention has a handle 3 arranged between the paddle 1 and the grip element 2. The grip element 2 is connected to the end of the shank 3 opposite the blade 1 by a tensile, flexurally elastic connecting element 4. When carrying out rowing with the vertical paddle according to the present invention, the user holds the handle member 2 with the manipulating hand and holds the handle bar 3 with the driving hand that carries out the pulling motion and the lifting motion. Of course, the vertical paddle according to the invention can also be used in a sitting position.

In order to ensure that the grip element 2 can be gripped by a replacement actuating hand from its position of arrangement relative to the handle 3 during the change of edge, the connecting element 4 can also be designed to be self-supporting.

According to an embodiment of the vertical paddle according to the invention, the connecting member 4 may comprise a plurality of connecting elements 5, which connecting elements 5 are pivotably connected to each other about at least one axis extending transversely to the connecting direction. In this case, the self-supporting function of the connecting element 4 can be produced, for example, by a frictional or force-fitting connection of the individual connecting elements 5 relative to one another.

In order to increase the flexibility of the vertical paddle according to the invention, the handle part 2 can be pivotably connected to the connecting part 4 about its transverse axis, with a high bending stiffness of the handle part 2. Thus, when the connecting element 4 is pivoted, the grip element 2 can be arranged, if appropriate, at right angles to the handle 3, so that the user's manipulating hand can hold the grip element 2 in a comfortable position with the palm facing downwards and the wrist protected.

Furthermore, it can be provided that the connecting element 4 has a bearing bush 6. According to one embodiment, the support sleeve 6 can surround both the handle part 2 and the connecting part 4. When the connecting elements 5, which are freely movable relative to one another, are provided as cores of the connecting element 4 in order to achieve sufficient tensile stiffness and bending elasticity, the bearing sleeve 6 can, by means of a suitable material selection, give the connecting element 4 the property of being self-supporting.

In order to improve the tactile properties of the paddle despite the presence of moisture, the support sleeve 6, which is gripped by the user's handling hand, can be made of a material that is non-slip. For example, the support sleeve 6 may be constructed of ethylene vinyl acetate, polyurethane, thermoplastic elastomer, or a material having similar properties in terms of skid resistance, low basis weight, chemical stability, and mechanical properties.

In order to be able to carry out the change of sides more efficiently with the vertical oar according to the invention, the connecting element 4 can be connected to the shank 3 rotatably about the longitudinal axis of the shank 3.

Claims

1. A vertical paddle having a handle (3) arranged between the paddle blade (1) and a handle member (2), characterized in that the handle member (2) is arranged on the end of the handle (3) opposite the paddle blade (1) by means of a tensile, flexurally elastic connecting member (4).

2. The vertical paddle according to claim 1, wherein the connecting piece (4) is designed to be self-carrying.

3. The vertical paddle according to claim 1 or 2, characterized in that the connecting member (4) comprises a plurality of connecting elements (5), which connecting elements (5) are pivotably connected to each other about at least one axis extending transversely to the connecting direction.

4. The vertical paddle according to any of claims 1 to 3, wherein the connector (4) has a bearing sleeve (6).

5. The vertical paddle according to any of claims 1 to 4, wherein the handle member (2) is pivotably connected to the connecting member (4) about its transverse axis.

6. The vertical paddle according to any of claims 1 to 5, wherein the connector (4) is rotatably mounted on the handle (3) about a longitudinal axis of the handle (3).