US20130266442A1 - Paddle - Google Patents
Paddle Download PDFInfo
- Publication number
- US20130266442A1 US20130266442A1 US13/858,411 US201313858411A US2013266442A1 US 20130266442 A1 US20130266442 A1 US 20130266442A1 US 201313858411 A US201313858411 A US 201313858411A US 2013266442 A1 US2013266442 A1 US 2013266442A1
- Authority
- US
- United States
- Prior art keywords
- handle
- paddle
- shaft portion
- connection features
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 238000000034 method Methods 0.000 claims description 6
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H16/00—Marine propulsion by muscle power
- B63H16/04—Oars; Sculls; Paddles; Poles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B2221/00—Methods and means for joining members or elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B2221/00—Methods and means for joining members or elements
- B63B2221/20—Joining substantially rigid elements together by means that allow one or more degrees of freedom, e.g. hinges, articulations, pivots, universal joints, telescoping joints, elastic expansion joints, not otherwise provided for in this class
- B63B2221/24—Joining substantially rigid elements together by means that allow one or more degrees of freedom, e.g. hinges, articulations, pivots, universal joints, telescoping joints, elastic expansion joints, not otherwise provided for in this class by means that allow one or more degrees of translational freedom, e.g. telescopic joints, not otherwise provided for in this class
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/10—Telescoping systems
- F16B7/14—Telescoping systems locking in intermediate non-discrete positions
- F16B7/1427—Telescoping systems locking in intermediate non-discrete positions with cammed or eccentrical surfaces co-operating by relative rotation of the telescoping members or by rotation of an external collar
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/12—Couplings for rigidly connecting two coaxial shafts or other movable machine elements allowing adjustment of the parts about the axis
Definitions
- the current invention relates to a paddle, and more particularly to an adjustable length paddle shaft.
- Paddle sports such as dragon-boating, outrigger canoeing and stand-up paddle-boards (SUP) have become increasingly popular and competitive giving rise to an increased demand for ergonomically designed and customizable paddles.
- paddle grip dynamics change depending on the physical characteristics of the paddler and the paddling conditions.
- SUPs for example the stance of the paddler on the board changes with wind and sea conditions which in turn changes the arm position and distance relative to each other and the water.
- a paddle comprising:
- the handle is rotatably connected with a proximal end of the second shaft, wherein the second shaft portion has the engageable connection features and the handle has the engager connection features for cooperating with the engageable connection features.
- the first and second plurality of teeth are triangular teeth, or square teeth.
- the handle and second shaft portion are biased in a first axial position towards each other and are movable to a second axial position away from each other.
- the engageable connection features cooperate with the engager connection features in the first axial position.
- the engageable connection features do not cooperate with the engager connection features in the second axial position, the handle being rotatable with respect to the second shaft portion when the engageable connection features do not cooperate with the engager connection features.
- the handle is rotatable in both a clockwise and an anticlockwise direction with respect to the second shaft portion when the engageable connection features do not cooperate with the engager connection features.
- the handle is rotatable through 360 degrees with respect to the second shaft portion when the engageable connection features do not cooperate with the engager connection features.
- the handle includes a pin extending into an interior of the second shaft portion, and further including a resiliently deformable member extending between a distal end of the pin and the proximal end of the second shaft portion, the resiliently deformable member biasing the handle and second shaft portion in the first axial position towards each other.
- the resiliently deformable member is a spring, or an elastic bush.
- the engageable connection features are on an engageable disk fixed to the proximal end of the second shaft portion.
- the engager connection features are on an engager disk fixed to the distal end of the handle.
- the handle is a paddle T-handle, or a palm-grip handle.
- the handle and second shaft portion are movable to the second axial position away from each other by means of a user gripping the shaft in a first hand and the handle in a second hand and pulling the handle and second shaft portion away from each other.
- the paddle further includes a cam locking arrangement located within one or both of the first and second shaft portions, the cam providing the rotatable locked and unlocked conditions of the first and second shaft portions.
- the second handle portion telescopically locates within an interior of the first shaft portion.
- the first and second shaft portions are axial movable in a telescopic manner, and in the locked condition the first and second shaft portions are not axial movable in a telescopic manner.
- the paddle is a paddleboard paddle.
- a paddle system comprising a paddle according to any one of the preceding claims, wherein the paddle is adapted to be setup by a user according to a method comprising:
- FIG. 1 is a front illustration of a paddle
- FIG. 2 is a side illustration of the paddle
- FIG. 3 is a first illustration of an adjustable handle connection for the paddle
- FIG. 4 is a second illustration of the adjustable handle connection for the paddle
- FIG. 5 is an exploded illustration of the adjustable handle connection for the paddle
- FIG. 6 an illustration of a cam-lock system for two telescoping portions of the paddle handle
- FIG. 7 is a perspective illustration of a cam body of the cam-lock system
- FIG. 8 is a side illustration of a cam body of the cam-lock system
- FIG. 9 is a section illustration through ‘A’ of FIG. 8 .
- FIG. 10 is a section illustration through ‘B’ of FIG. 8 .
- FIG. 11 is a bottom illustration of a can ring of the cam-lock system
- FIG. 12 is a side illustration of the cam ring
- FIG. 14 is a bottom perspective illustration of the cam ring
- FIG. 15 is a top perspective illustration of the cam ring
- FIG. 16 is an illustration of operation of the cam-lock system
- FIG. 17 is an illustration of an alternative adjustable handle connection for the paddle
- FIG. 19 is an illustration of the combined system of FIG. 18 for two telescoping portions of the paddle handle.
- a paddle 10 having a paddle shaft comparing a first shaft portion 11 and a second shaft portion 12 .
- a paddle blade 14 is located at a distal end 15 of the first shaft portion 11 .
- a handle 17 is rotatably connected with a proximal end 16 of the second shaft 12 .
- Each shaft portion is a hollow tubular shaft portion having a cylindrical shaft wall.
- the first shaft portion 11 has an inner wall diameter slightly larger than an outer wall diameter of the second shaft portion 12 such that the distal end 14 of second shaft portion 12 is telescopically receivable within the proximal end 13 of the first shaft portion 11 .
- the telescopically engaged shaft portions 11 , 12 allow the handle length to be changed between a longer use configuration and a shorter storage configuration.
- a locking cam is located at the distal end 14 of second shaft portion 12 for longitudinally locking the relative positions of the two shaft portions 11 , 12 .
- the locking cam longitudinally secures the two shaft portions 11 , 12 when one shaft portion is axially rotated relative to the other shaft portion in a first direction, and the locking cam longitudinally releases the two shaft portions 11 , 12 when the one shaft portion is axially rotated relative to the other shaft portion in a second direction that is opposite to the first direction.
- the second shaft portion 12 has axially arranged engageable connection features 21 at its distal end 16 and the handle 17 has a cavity in which is located corresponding axial engager connection features 20 for cooperating with the engageable connection features 21 for selectively securing the handle 17 and the second shaft 12 in at least two possible rotational orientations.
- the engageable connection features 21 is a plug 22 located within the proximal end of the second shaft portion 12 and having a first axial surface on which are provided by forming or machining or other known means a plurality of teeth.
- the engager connection features 20 is a disk 23 located within the axial cavity of the handle and having a second axial surface on which are provided by forming or machining or other known means a second plurality of teeth.
- the second plurality of teeth is meshable or optionally interlockable with the first plurality of teeth for selectively securing the handle 17 and the second shaft 12 in the at last two possible rotational orientations.
- the first and second plurality of teeth are triangular teeth, or in an alternative embodiment they may be square teeth or any other similar engageable and engager features.
- Such an alternative embodiment of the teeth 20 , 21 is shown in FIG. 19 , in which the teeth are generally triangular shaped with a taper towards the distal end from the base end to facilitate easy and smoother inter-engagement of the teeth when rotated to a new rotational orientation.
- the handle 17 and second shaft portion 12 are biased in a first axial position towards each other and are movable to a second axial position away from each other.
- the engageable connection features 21 cooperate with the engager connection features 20 in the first axial position, which is illustrated in FIG. 3 .
- the engageable connection features 21 do not cooperate with the engager connection features 20 in the second axial position, which is illustrated in FIG. 4 .
- the handle 17 is rotatable with respect to the second shaft portion 12 when the engageable connection features 21 do not cooperate with the engager connection features 20 .
- the handle 17 is rotatable in both a clockwise and an anticlockwise direction with respect to the second shaft portion 12 and may be rotatable through 360 degrees.
- the disk 23 of the engager connection features 20 and the plug 22 of the engageable connection features 21 have coaxial apertures 26 , 27 aligning with the longitudinal axis of the handle 17 and second shaft portion 12 .
- the handle 17 includes a pin 24 extending through the disk 23 aperture of the engager connection features 20 and also though the plug 22 aperture of the engageable connection features 21 and into an interior of the second shaft portion 12 .
- the pin 24 has an axial hollow bore with a screw thread on its inner surface.
- a bolt 30 has a threaded shank 31 and head 32 . The bolt 30 threadably engages with the pin bore 25 from within the second shaft portion 12 .
- a resiliently deformable member 33 extends between the head 32 of the bolt 30 and an underside 28 of the plug surface. The resiliently deformable member biases the handle and second shaft portion in the first axial position towards each other.
- the resiliently deformable member is a spring 33 , or may be an elastic bush 60 as illustrated in FIG. 19 and discussed below.
- the handle 17 is a paddle T-handle, or a palm-grip handle.
- the handle 17 and second shaft portion 12 are movable to the second axial position away from each other by means of a user gripping the shaft 12 in a first hand and the handle 17 in a second hand and pulling the handle 17 and second shaft portion 12 away from each other.
- the paddle includes a cam locking arrangement located within one or both of the first and second shaft portions 11 , 12 .
- the cam provides the rotatable locked and unlocked conditions of the first and second shaft portions.
- the second handle portion 12 telescopically locates within an interior of the first shaft portion 11 . In the unlocked condition the first and second shaft portions are axial movable in a telescopic manner, and in the locked condition the first and second shaft portions are not axial movable in a telescopic manner.
- the cam locking means comprises a cam body 40 and two 90-degree offset cam rings 41 , 42 located in corresponding cam grooves 43 , 44 of the cam body 40 .
- the cam groves are in series, one after the other, along the cam body 40 .
- the cam body comprises a plug portion 45 that secures within a hollow bore end 14 of the second shaft portion 12 and two offset cam grooves that are received within the proximal end of first shaft portion 11 .
- Each cam groove has an inner cylindrical body 46 , 47 about which a respective cam ring 41 , 42 locates within the groove 43 , 44 .
- the cam body 40 , cylindrical body 46 of first cam groove 43 and the cylindrical body 47 of second cam groove 44 all have respective axes that are eccentric from the other ones of the cam body 40 , cylindrical body 46 of first cam groove 43 and the cylindrical body 47 of second cam groove 44 .
- the position of the axis of the first cylindrical body 46 with respect to the axis of the cam body 40 is 90-degrees offset from the position of the axis of the second cylindrical body 47 with respect to the axis of the cam body 40 .
- Within each cam groove is a stop 48 , 49 that extends from the respective groove bed to the outer surface of the cam body 40 .
- the position of stop 49 within second cam groove 44 is 90-degrees offset rotationally from the position of stop 48 within first cam groove 43 .
- the cam grooves 43 , 44 have different axes and 90-degree offset positions of stops 48 , 49 such that the cam rings 41 , 42 located within respective grooves 43 , 44 are 90-degrees offset with respect to each other. That is, the first cam ring 41 within first cam groove 43 or rotationally 90-degrees offset from the second cam ring 42 within second cam groove 44 .
- FIG. 9 is a section through the first cam groove 43 showing the offset position of the first groove body 46 and stop 48 relative to the cam body 40 .
- FIG. 10 is a section through the second cam groove 44 showing the offset position of the second groove body 47 and stop 49 relative to the cam body 40 .
- the cam rings 41 , 42 are identical although in-situ 90-degrees offset from each other.
- Each cam ring 41 , 42 is a split-ring (split type ring) having an opening or gap 54 in the circular ring wall.
- the inner diameter 52 of the ring has an axis that is eccentric from the axis of the outer diameter of the ring such that the ring wall is thicker in cross section on one side of the ring than from the other side of the ring.
- the split or gap 54 in the ring 41 , 42 is provided in the thicker side 50 of the cam ring, while the thinner side 51 of the ring 41 , 42 is diametrically opposite the gap 54 .
- the depth of the ring is stepped from wider at the thicker side 50 to narrower at the thinner side 51 .
- the width transitions in a step to provide a shoulder 53 in the ring.
- Rotation of one of the shaft portions 11 , 12 with respect to the other shaft portion 11 , 12 causes one or both of the cam rings 41 , 42 to rotate within its cam groove until the wider portion 50 of the ring 41 , 42 engages with the inner wall of the first shaft portion 11 .
- the cam rings 41 , 42 can rotate within their respective groove 43 , 44 and compress due to the gap 54 until the wider portion 50 of the rings 41 , 42 binds with the inner wall of the first shaft portion 11 locking the first and second shaft portions 11 , 12 in their relative axial position.
- Rotation of one of the shaft portions 11 , 12 with respect to the other shaft portion 11 , 12 in an opposite direction causes the cam rings 41 , 42 to unbind so that the two shaft portions can me moved relatively in the axial direction.
- FIGS. 18 and 19 show a further alternative embodiment of the present invention where the engager connection features 20 and engageable connection features 21 are included in a combined piece with the cam locking means.
- the engager and engageable connection features for aligning the paddle handle and blade are located at the distal end 14 of the second shaft portion 12 with the cam locking means.
- the engager connection features 20 are located with the plug 45 engaged within the bore end 14 of second handle portion 12 .
- the engageable connection features 21 are provided on an upper end of the cam body 40 .
- a bolt or rod 61 intends axially through the engager connection features 20 and engageable connection features 21 and cam body to a tensioning nut 62 engaged with the distal threaded end of the bolt 61 .
- a resilient deformable compressible elastic bush 60 bush and washer 63 are provided between distal end of the cam body 40 and tensioning nut 62 .
- the resiliently deformable bush 60 biases the engager connection features 20 and engageable connection features 21 in the first axial position towards each other, and compresses to allow the engager connection features 20 and engageable connection features 21 to be moved to the second axial position away each other so that the paddle handle and blade can be aligned after the cam locking means is tightened.
- An advantage of this alternative embodiment is that the tensioning nut 62 for the compressible biasing bush 60 is accessible if the handle portions 1 , 12 are separated thus allowing users to dial in the tension themselves. Additionally parts can be left to dry out if wet and if the cam or engager part breaks they can be readily serviced by the user.
- the paddle is a stand-up paddle-board (SUP) paddle, but may be any collapsible type paddle.
- the first shaft portion 11 is tapered on one axis between its proximal end 13 and distal and 15 .
- the proximal end 13 of the shaft portion 11 is circular in cross-section and as the shaft portion 11 extends to the distal end 15 adjoining to the blade 14 the cross section tapers outwardly in one diameter so that at the distal end 15 the shaft is oval in cross section.
- the oval cross section at the distal end 15 has a narrower diameter that is the same as the diameter of the circular proximal end 13 , and a second wider diameter that is 90-degrees from the narrower diameter.
- the cam rings 41 , 42 might not tightly bind against the inner surface of the first shaft portion 11 at it wider diameter.
- the two shaft portions could only be axially locked by the cams in two rotational positions 180-degrees apart when the cam rings 41 , 42 bind against the narrower diameter of the second shaft portion.
- the two cam rings 4 , 42 and grooves 43 , 44 are provided 90-degrees offset as described above such that one or other of the cam rings 41 , 42 binds with the coal shaft 11 at more relative rotational positions of the two positions 11 , 12 , say 90-degrees apart.
- Such 90-degree offset cam rings may also provide for improved cam-lock functionality in situations where the inner surface of the first shaft portion 11 has imperfections affecting binding of a single or aligned cam rings at some positions.
- the paddle is adapted and provided to be setup by a user according to a method that includes gripping the first shaft portion in a first hand of the user and the second shaft portion in a second hand of the user and then moving the first and second shaft portions away from each other to extend the paddle shaft. Once in the desired extension, rotating the first shaft portion with respect to the second shaft portions and thereby axially locking the paddle shaft in an extended condition. Then the handle is aligned with the shaft by gripping the second shaft portion in a first hand of the user and the handle in a second hand of the user and moving the handle and second shaft portion away from each other. The handle can then be rotated to a desired alignment with a paddle blade and the handle and second shaft portion moved towards each other and/or released to lock the handle in portion.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
Abstract
A paddle has a first shaft portion with a handle and a second shaft portion with a blade. The first and second shaft portions are telescopically engageable to provide a variable length paddle shaft. The shaft portions include engager connection features and engageable connection features that cooperate for selectively securing the handle and the blade in at least two different rotational orientations. The shaft portions also include two 90-degree offset locking cams that rotate between locked and unlocked conditions.
Description
- The current invention relates to a paddle, and more particularly to an adjustable length paddle shaft.
- Paddle sports such as dragon-boating, outrigger canoeing and stand-up paddle-boards (SUP) have become increasingly popular and competitive giving rise to an increased demand for ergonomically designed and customizable paddles. In many instances paddle grip dynamics change depending on the physical characteristics of the paddler and the paddling conditions. In the case of SUPs for example the stance of the paddler on the board changes with wind and sea conditions which in turn changes the arm position and distance relative to each other and the water. It is advantageous to have a paddle which is not only collapsible (to an extent) for transport and storage, but which is adjustable to suit individual paddling conditions which may vary from day to day or during a day's paddle.
- According to a first aspect of the invention there is provided a paddle comprising:
-
- a first shaft portion,
- a blade located at a distal end of the first shaft portion,
- a second shaft portion telescopically engaging with the first shaft portion, the first and second shaft portions together providing a variable length paddle shaft, the first and second shaft portions being rotatable between locked and unlocked conditions, and
- a handle connected with a proximal end of the second shaft, and
- engager connection features for cooperating with the engageable connection features for selectively securing the handle and the blade in at last two possible rotational orientations.
- Preferably, the handle is rotatably connected with a proximal end of the second shaft, wherein the second shaft portion has the engageable connection features and the handle has the engager connection features for cooperating with the engageable connection features.
- Preferably, the first and second plurality of teeth are triangular teeth, or square teeth.
- Preferably, the handle and second shaft portion are biased in a first axial position towards each other and are movable to a second axial position away from each other.
- Preferably, the engageable connection features cooperate with the engager connection features in the first axial position.
- Preferably, the engageable connection features do not cooperate with the engager connection features in the second axial position, the handle being rotatable with respect to the second shaft portion when the engageable connection features do not cooperate with the engager connection features.
- Preferably, the handle is rotatable in both a clockwise and an anticlockwise direction with respect to the second shaft portion when the engageable connection features do not cooperate with the engager connection features.
- Preferably, the handle is rotatable through 360 degrees with respect to the second shaft portion when the engageable connection features do not cooperate with the engager connection features.
- Preferably, the handle includes a pin extending into an interior of the second shaft portion, and further including a resiliently deformable member extending between a distal end of the pin and the proximal end of the second shaft portion, the resiliently deformable member biasing the handle and second shaft portion in the first axial position towards each other.
- Preferably, the resiliently deformable member is a spring, or an elastic bush.
- Preferably, the engageable connection features are on an engageable disk fixed to the proximal end of the second shaft portion.
- Preferably, the engager connection features are on an engager disk fixed to the distal end of the handle.
- Preferably, the handle is a paddle T-handle, or a palm-grip handle.
- Preferably, the handle and second shaft portion are movable to the second axial position away from each other by means of a user gripping the shaft in a first hand and the handle in a second hand and pulling the handle and second shaft portion away from each other.
- Preferably, the paddle further includes a cam locking arrangement located within one or both of the first and second shaft portions, the cam providing the rotatable locked and unlocked conditions of the first and second shaft portions.
- Preferably, the there are two series cam locking means offset from one another by 90 degrees.
- Preferably, the second handle portion telescopically locates within an interior of the first shaft portion.
- Preferably, in the unlocked condition the first and second shaft portions are axial movable in a telescopic manner, and in the locked condition the first and second shaft portions are not axial movable in a telescopic manner.
- Preferably, the paddle is a paddleboard paddle.
- According to a second aspect of the invention there is provided a paddle system comprising a paddle according to any one of the preceding claims, wherein the paddle is adapted to be setup by a user according to a method comprising:
- gripping the first shaft portion in a first hand and the second shaft portion in a second hand, moving the first and second shaft portions away from each other to extend the paddle shaft, rotating the first shaft portion with respect to the second shaft portions and thereby axially locking the paddle shaft in an extended condition, and then
- gripping the second shaft portion in a first hand and the handle in a second hand, moving the handle and second shaft portion away from each other, rotating the handle to a desired alignment with a paddle blade, moving the handle and second shaft portion towards each other and/or releasing the handle and second shaft portion.
- According to a third aspect of the invention there is provided a method of setting up a paddle according to any one of the preceding claims, wherein the paddle is adapted to be setup by a user, the method comprising:
- gripping the first shaft portion in a first hand and the second shaft portion in a second hand, moving the first and second shaft portions away from each other to extend the paddle shaft, rotating the first shaft portion with respect to the second shaft portions and thereby axially locking the paddle shaft in an extended condition, and then
- gripping the second shaft portion in a first hand and the handle in a second hand, moving the handle and second shaft portion away from each other, rotating the handle to a desired alignment with a paddle blade, moving the handle and second shaft portion towards each other and/or releasing the handle and second shaft portion.
- The above aspects are not limiting and further aspects of the invention will become apparent from the drawings.
- In the attached drawings there is shown various features of a paddle according to the invention as described below and claimed.
-
FIG. 1 is a front illustration of a paddle, -
FIG. 2 is a side illustration of the paddle, -
FIG. 3 is a first illustration of an adjustable handle connection for the paddle, -
FIG. 4 is a second illustration of the adjustable handle connection for the paddle, -
FIG. 5 is an exploded illustration of the adjustable handle connection for the paddle, -
FIG. 6 an illustration of a cam-lock system for two telescoping portions of the paddle handle, -
FIG. 7 is a perspective illustration of a cam body of the cam-lock system, -
FIG. 8 is a side illustration of a cam body of the cam-lock system, -
FIG. 9 is a section illustration through ‘A’ ofFIG. 8 , -
FIG. 10 is a section illustration through ‘B’ ofFIG. 8 , -
FIG. 11 is a bottom illustration of a can ring of the cam-lock system, -
FIG. 12 is a side illustration of the cam ring, -
FIG. 13 is a top illustration of the cam ring, -
FIG. 14 is a bottom perspective illustration of the cam ring, -
FIG. 15 is a top perspective illustration of the cam ring, -
FIG. 16 is an illustration of operation of the cam-lock system, -
FIG. 17 is an illustration of an alternative adjustable handle connection for the paddle, -
FIG. 18 is an illustration of an alternative embodiment of a combined adjustable handle connection and cam-lock system for the paddle, and -
FIG. 19 is an illustration of the combined system ofFIG. 18 for two telescoping portions of the paddle handle. - The following description is given by way of example only to illustrate the invention and is not intended to limit the scope of use or functionality of the invention. In particular, the invention is not limited in its application to the details of construction and the arrangements of components set forth in the following description or illustrated in the accompanying drawings. The invention is capable of other embodiments and of being practiced or being carried out in various ways. Also, it is to be understood that the phraseology and terminology used is for the purpose of description and should not be regarded as limiting.
- In the drawings there is shown, a
paddle 10 having a paddle shaft comparing afirst shaft portion 11 and asecond shaft portion 12. Apaddle blade 14 is located at adistal end 15 of thefirst shaft portion 11. Ahandle 17 is rotatably connected with aproximal end 16 of thesecond shaft 12. Each shaft portion is a hollow tubular shaft portion having a cylindrical shaft wall. Thefirst shaft portion 11 has an inner wall diameter slightly larger than an outer wall diameter of thesecond shaft portion 12 such that thedistal end 14 ofsecond shaft portion 12 is telescopically receivable within theproximal end 13 of thefirst shaft portion 11. The telescopically engagedshaft portions distal end 14 ofsecond shaft portion 12 for longitudinally locking the relative positions of the twoshaft portions shaft portions shaft portions - Referring to
FIGS. 3 and 4 , thesecond shaft portion 12 has axially arranged engageable connection features 21 at itsdistal end 16 and thehandle 17 has a cavity in which is located corresponding axial engager connection features 20 for cooperating with the engageable connection features 21 for selectively securing thehandle 17 and thesecond shaft 12 in at least two possible rotational orientations. The engageable connection features 21 is aplug 22 located within the proximal end of thesecond shaft portion 12 and having a first axial surface on which are provided by forming or machining or other known means a plurality of teeth. The engager connection features 20 is adisk 23 located within the axial cavity of the handle and having a second axial surface on which are provided by forming or machining or other known means a second plurality of teeth. The second plurality of teeth is meshable or optionally interlockable with the first plurality of teeth for selectively securing thehandle 17 and thesecond shaft 12 in the at last two possible rotational orientations. The first and second plurality of teeth are triangular teeth, or in an alternative embodiment they may be square teeth or any other similar engageable and engager features. Such an alternative embodiment of theteeth FIG. 19 , in which the teeth are generally triangular shaped with a taper towards the distal end from the base end to facilitate easy and smoother inter-engagement of the teeth when rotated to a new rotational orientation. - The
handle 17 andsecond shaft portion 12 are biased in a first axial position towards each other and are movable to a second axial position away from each other. The engageable connection features 21 cooperate with the engager connection features 20 in the first axial position, which is illustrated inFIG. 3 . The engageable connection features 21 do not cooperate with the engager connection features 20 in the second axial position, which is illustrated inFIG. 4 . Thehandle 17 is rotatable with respect to thesecond shaft portion 12 when the engageable connection features 21 do not cooperate with the engager connection features 20. Thehandle 17 is rotatable in both a clockwise and an anticlockwise direction with respect to thesecond shaft portion 12 and may be rotatable through 360 degrees. - The
disk 23 of the engager connection features 20 and theplug 22 of the engageable connection features 21 havecoaxial apertures handle 17 andsecond shaft portion 12. Thehandle 17 includes apin 24 extending through thedisk 23 aperture of the engager connection features 20 and also though theplug 22 aperture of the engageable connection features 21 and into an interior of thesecond shaft portion 12. Thepin 24 has an axial hollow bore with a screw thread on its inner surface. Abolt 30 has a threadedshank 31 andhead 32. Thebolt 30 threadably engages with the pin bore 25 from within thesecond shaft portion 12. A resilientlydeformable member 33 extends between thehead 32 of thebolt 30 and anunderside 28 of the plug surface. The resiliently deformable member biases the handle and second shaft portion in the first axial position towards each other. In the preferred embodiment the resiliently deformable member is aspring 33, or may be anelastic bush 60 as illustrated inFIG. 19 and discussed below. - In the preferred embodiment the engageable connection features 21 are on an
engageable disk 22 fixed to theproximal end 16 of thesecond shaft portion 12 and the engager connection features 20 are on anengager disk 23 fixed to the distal end of thehandle 17. - The
handle 17 is a paddle T-handle, or a palm-grip handle. - The
handle 17 andsecond shaft portion 12 are movable to the second axial position away from each other by means of a user gripping theshaft 12 in a first hand and thehandle 17 in a second hand and pulling thehandle 17 andsecond shaft portion 12 away from each other. - The paddle includes a cam locking arrangement located within one or both of the first and
second shaft portions second handle portion 12 telescopically locates within an interior of thefirst shaft portion 11. In the unlocked condition the first and second shaft portions are axial movable in a telescopic manner, and in the locked condition the first and second shaft portions are not axial movable in a telescopic manner. - Referring to
FIG. 6 through 16 , the cam locking means comprises acam body 40 and two 90-degree offset cam rings 41, 42 located incorresponding cam grooves cam body 40. The cam groves are in series, one after the other, along thecam body 40. The cam body comprises aplug portion 45 that secures within a hollow bore end 14 of thesecond shaft portion 12 and two offset cam grooves that are received within the proximal end offirst shaft portion 11. Each cam groove has an innercylindrical body respective cam ring groove cam body 40,cylindrical body 46 offirst cam groove 43 and thecylindrical body 47 ofsecond cam groove 44 all have respective axes that are eccentric from the other ones of thecam body 40,cylindrical body 46 offirst cam groove 43 and thecylindrical body 47 ofsecond cam groove 44. The position of the axis of the firstcylindrical body 46 with respect to the axis of thecam body 40 is 90-degrees offset from the position of the axis of the secondcylindrical body 47 with respect to the axis of thecam body 40. Within each cam groove is astop cam body 40. The position ofstop 49 withinsecond cam groove 44 is 90-degrees offset rotationally from the position ofstop 48 withinfirst cam groove 43. Thecam grooves stops respective grooves first cam ring 41 withinfirst cam groove 43 or rotationally 90-degrees offset from thesecond cam ring 42 withinsecond cam groove 44.FIG. 9 is a section through thefirst cam groove 43 showing the offset position of thefirst groove body 46 and stop 48 relative to thecam body 40.FIG. 10 is a section through thesecond cam groove 44 showing the offset position of thesecond groove body 47 and stop 49 relative to thecam body 40. - The cam rings 41, 42 are identical although in-situ 90-degrees offset from each other. Each
cam ring gap 54 in the circular ring wall. Theinner diameter 52 of the ring has an axis that is eccentric from the axis of the outer diameter of the ring such that the ring wall is thicker in cross section on one side of the ring than from the other side of the ring. The split orgap 54 in thering thicker side 50 of the cam ring, while thethinner side 51 of thering gap 54. The depth of the ring is stepped from wider at thethicker side 50 to narrower at thethinner side 51. The width transitions in a step to provide ashoulder 53 in the ring. When the cam rings 41, 42 are in-situ withrespective cam grooves ring groove stop respective groove shoulders 53 contact thestops rings grooves - Rotation of one of the
shaft portions other shaft portion wider portion 50 of thering first shaft portion 11. As the shaft portions are further rotated the cam rings 41, 42 can rotate within theirrespective groove gap 54 until thewider portion 50 of therings first shaft portion 11 locking the first andsecond shaft portions shaft portions other shaft portion -
FIGS. 18 and 19 show a further alternative embodiment of the present invention where the engager connection features 20 and engageable connection features 21 are included in a combined piece with the cam locking means. In such an embodiment the engager and engageable connection features for aligning the paddle handle and blade are located at thedistal end 14 of thesecond shaft portion 12 with the cam locking means. The engager connection features 20 are located with theplug 45 engaged within thebore end 14 ofsecond handle portion 12. The engageable connection features 21 are provided on an upper end of thecam body 40. A bolt orrod 61 intends axially through the engager connection features 20 and engageable connection features 21 and cam body to atensioning nut 62 engaged with the distal threaded end of thebolt 61. A resilient deformable compressibleelastic bush 60 bush andwasher 63 are provided between distal end of thecam body 40 andtensioning nut 62. The resilientlydeformable bush 60 biases the engager connection features 20 and engageable connection features 21 in the first axial position towards each other, and compresses to allow the engager connection features 20 and engageable connection features 21 to be moved to the second axial position away each other so that the paddle handle and blade can be aligned after the cam locking means is tightened. An advantage of this alternative embodiment is that thetensioning nut 62 for thecompressible biasing bush 60 is accessible if thehandle portions 1, 12 are separated thus allowing users to dial in the tension themselves. Additionally parts can be left to dry out if wet and if the cam or engager part breaks they can be readily serviced by the user. - In the preferred embodiment the paddle is a stand-up paddle-board (SUP) paddle, but may be any collapsible type paddle. In some embodiments of the paddle the
first shaft portion 11 is tapered on one axis between itsproximal end 13 and distal and 15. Theproximal end 13 of theshaft portion 11 is circular in cross-section and as theshaft portion 11 extends to thedistal end 15 adjoining to theblade 14 the cross section tapers outwardly in one diameter so that at thedistal end 15 the shaft is oval in cross section. The oval cross section at thedistal end 15 has a narrower diameter that is the same as the diameter of the circularproximal end 13, and a second wider diameter that is 90-degrees from the narrower diameter. As thesecond shaft portion 12 is extended further into thefirst shaft portion 11 the cam rings 41, 42 might not tightly bind against the inner surface of thefirst shaft portion 11 at it wider diameter. The two shaft portions could only be axially locked by the cams in two rotational positions 180-degrees apart when the cam rings 41, 42 bind against the narrower diameter of the second shaft portion. In such an embodiment the two cam rings 4, 42 andgrooves coal shaft 11 at more relative rotational positions of the twopositions first shaft portion 11 has imperfections affecting binding of a single or aligned cam rings at some positions. - The paddle is adapted and provided to be setup by a user according to a method that includes gripping the first shaft portion in a first hand of the user and the second shaft portion in a second hand of the user and then moving the first and second shaft portions away from each other to extend the paddle shaft. Once in the desired extension, rotating the first shaft portion with respect to the second shaft portions and thereby axially locking the paddle shaft in an extended condition. Then the handle is aligned with the shaft by gripping the second shaft portion in a first hand of the user and the handle in a second hand of the user and moving the handle and second shaft portion away from each other. The handle can then be rotated to a desired alignment with a paddle blade and the handle and second shaft portion moved towards each other and/or released to lock the handle in portion.
Claims (20)
1. A paddle comprising:
a first shaft portion,
a blade located at a distal end of the first shaft portion,
a second shaft portion telescopically engaging the first shaft portion, the first and second shaft portions together providing a variable length paddle shaft, the first and second shaft portions being rotatable between locked and unlocked conditions,
a handle connected with a proximal end of the second shaft portion, and
engager connection features for cooperating with engageable connection features for selectively securing the handle and the blade in at least two different rotational orientations.
2. The paddle according to claim 1 wherein the handle is rotatably connected with a proximal end of the second shaft portion,
the second shaft portion has the engageable connection features, and
the handle has the engager connection features for cooperating with the engageable connection features.
3. The paddle of claim 1 wherein
the engageable connection features include a first plurality of teeth,
the engager connection features include a second plurality of teeth, and
the second plurality of teeth are interlockable with the first plurality of teeth for selectively securing the handle and the second shaft in the at least two different orientations.
4. The paddle of claim 2 wherein the first and second pluralities of teeth include triangular teeth or square teeth.
5. The paddle of claim 2 wherein the handle and the second shaft portion are biased in a first axial position towards each other and are movable to a second axial position away from each other.
6. The paddle of claim 5 wherein the engageable connection features cooperate with the engager connection features in the first axial position.
7. The paddle of claim 5 wherein
the engageable connection features do not cooperate with the engager connection features in the second axial position, and
the handle is rotatable with respect to the second shaft portion when the engageable connection features do not cooperate with the engager connection features.
8. The paddle of claim 7 wherein the handle is rotatable in both a clockwise and an anticlockwise direction with respect to the second shaft portion when the engageable connection features do not cooperate with the engager connection features.
9. The paddle of claim 7 wherein the handle is rotatable through 360 degrees with respect to the second shaft portion when the engageable connection features do not cooperate with the engager connection features.
10. The paddle of claim 7 wherein the handle includes a pin extending into an interior of the second shaft portion, and further including a resiliently deformable member extending between a distal end of the pin and the proximal end of the second shaft portion, the resiliently deformable member biasing the handle and the second shaft portion, in the first axial position, towards each other.
11. The paddle of claim 10 wherein the resiliently deformable member is a spring or an elastic bushing.
12. The paddle of claims 1 including an engageable disk having the engageable connection features, wherein the engageable disk is fixed to the proximal end of the second shaft portion.
13. The paddle of claim 1 including an engager disk having the engager connection features, wherein the engager disk is fixed to the distal end of the handle.
14. The paddle of claim 1 wherein the handle is a paddle T-handle or a palm-grip handle.
15. The paddle of claim 5 wherein the handle and second shaft portion are movable to the second axial position, away from each other, by a user gripping the shaft in a first hand and the handle in a second hand and pulling the handle and the second shaft portion away from each other.
16. The paddle of claim 1 further including cam locking means located within at least one of the first and second shaft portions, the cam locking means providing the rotatable locked and unlocked conditions of the first and second shaft portions.
17. The paddle of claim 16 including two serial cam locking means offset from one another by 90 degrees.
18. The paddle of claim 16 wherein, in the unlocked condition, the first and second shaft portions are axially movable in a telescopic manner, and, in the locked condition, the first and second shaft portions are not axially movable in a telescopic manner.
19. A method of setting up a paddle according to claim 1 , by a user, the method comprising sequentially:
gripping the first shaft portion in a first hand and the second shaft portion in a second hand,
moving the first and second shaft portions away from each other to extend the paddle shaft,
rotating the first shaft portion with respect to the second shaft portion and thereby axially locking the paddle shaft in an extended condition,
gripping the second shaft portion in the first hand and the handle in the second hand,
moving the handle and second shaft portion away from each other,
rotating the handle to a desired alignment with a paddle blade, and
moving the handle and the second shaft portion towards each other and/or releasing the handle and the second shaft portion.
20. The paddle of claim 1 wherein
the engageable connection features include a first plurality of teeth,
the engager connection features include a second plurality of teeth, and
the second plurality of teeth are interlockable with the first plurality of teeth for selectively securing the handle and the second shaft in the at least two different orientations.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HK12103447.9 | 2012-04-06 | ||
HK12103447 | 2012-04-06 |
Publications (1)
Publication Number | Publication Date |
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US20130266442A1 true US20130266442A1 (en) | 2013-10-10 |
Family
ID=49224487
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/858,411 Abandoned US20130266442A1 (en) | 2012-04-06 | 2013-04-08 | Paddle |
Country Status (3)
Country | Link |
---|---|
US (1) | US20130266442A1 (en) |
FR (1) | FR2989059A3 (en) |
WO (1) | WO2014013301A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140037457A1 (en) * | 2012-08-03 | 2014-02-06 | Dynaplas Ltd. | Adjustable paddle |
US20160160898A1 (en) * | 2013-07-25 | 2016-06-09 | Dmotm Limited | An improved connector |
EP3466547A1 (en) * | 2017-10-03 | 2019-04-10 | Swantech AS | Telescopic lance, and in combination a telescopic lance and a trigger gun |
WO2019104005A1 (en) * | 2017-11-22 | 2019-05-31 | Retter Dale Jared | Water paddle system and related methods |
US10946947B1 (en) * | 2019-11-14 | 2021-03-16 | Chuan Jiing Enterprise Co., Ltd. | Oar capable of bailing water |
US20240123600A1 (en) * | 2022-10-14 | 2024-04-18 | Hangzhou Suwei Sports Equipment Co., Ltd. | Oar grip |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2017406638C1 (en) | 2017-04-01 | 2022-06-30 | X-Pole Asia Limited | End assembly for a dance exercise pole |
CN107600379A (en) * | 2017-09-12 | 2018-01-19 | 浙江海洋大学 | A kind of flexible lifesaving quant |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070184729A1 (en) * | 2005-07-28 | 2007-08-09 | Dale Kicker | Rotatable and extendable locking shaft apparatus |
Family Cites Families (5)
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US6419601B1 (en) * | 1999-04-09 | 2002-07-16 | Allen D. Kenner | Squeeze actuated hand interface systems for rotatable items |
US6544087B1 (en) * | 2002-05-31 | 2003-04-08 | I-Sin Peng | Adjustable fixing structure of paddle for adjusting length of paddle |
CN200945931Y (en) * | 2006-07-10 | 2007-09-12 | 钟成波 | Ice-earth boat and angle-variable oar for measuring instrument |
US8491349B2 (en) * | 2010-07-29 | 2013-07-23 | Dirk Steinhour | Adjustable paddle for watercrafts |
CN201872937U (en) * | 2010-11-12 | 2011-06-22 | 谢采玲 | Oar handle structure |
-
2013
- 2013-04-08 WO PCT/IB2013/000622 patent/WO2014013301A1/en active Application Filing
- 2013-04-08 US US13/858,411 patent/US20130266442A1/en not_active Abandoned
- 2013-04-08 FR FR1353127A patent/FR2989059A3/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070184729A1 (en) * | 2005-07-28 | 2007-08-09 | Dale Kicker | Rotatable and extendable locking shaft apparatus |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140037457A1 (en) * | 2012-08-03 | 2014-02-06 | Dynaplas Ltd. | Adjustable paddle |
US9327814B2 (en) * | 2012-08-03 | 2016-05-03 | Dynaplas Ltd. | Adjustable paddle |
US20160160898A1 (en) * | 2013-07-25 | 2016-06-09 | Dmotm Limited | An improved connector |
US9829023B2 (en) * | 2013-07-25 | 2017-11-28 | Dmotm Limited | Connector |
EP3466547A1 (en) * | 2017-10-03 | 2019-04-10 | Swantech AS | Telescopic lance, and in combination a telescopic lance and a trigger gun |
CN109604083A (en) * | 2017-10-03 | 2019-04-12 | 斯万技术股份公司 | Telescoping lance |
WO2019104005A1 (en) * | 2017-11-22 | 2019-05-31 | Retter Dale Jared | Water paddle system and related methods |
US10457368B1 (en) | 2017-11-22 | 2019-10-29 | Dale Jared Retter | Water paddle system and related methods |
US10946947B1 (en) * | 2019-11-14 | 2021-03-16 | Chuan Jiing Enterprise Co., Ltd. | Oar capable of bailing water |
US20240123600A1 (en) * | 2022-10-14 | 2024-04-18 | Hangzhou Suwei Sports Equipment Co., Ltd. | Oar grip |
Also Published As
Publication number | Publication date |
---|---|
FR2989059A3 (en) | 2013-10-11 |
WO2014013301A1 (en) | 2014-01-23 |
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Owner name: NEIL PRYDE LIMITED, CHINA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LASS, HELGO;REEL/FRAME:030847/0952 Effective date: 20130531 |
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