US3156934A

US3156934A - Rowing device

Info

Publication number: US3156934A
Application number: US223052A
Authority: US
Inventors: John A Kashew
Original assignee: Individual
Current assignee: Individual
Priority date: 1962-09-12
Filing date: 1962-09-12
Publication date: 1964-11-17
Anticipated expiration: 1981-11-17

Description

1964 J. A. KASHEW ROWING DEVICE Filed Sept. 12, 1962 INVENTOR. (b h n 2. KQSZ? ew United States Patent 3,156,934 ROWING DEVICE John A. Kashew, Chicago, 111., assignor to John W. Sereda, Chicago, lill. Filed ept. 12, 1962, Ser. No. 22$,tl52 2 Claims. (Cl. 9-25) This invention relates to a novel rowing device and in particular relates to a novel oar construction the primary object of which is to permit a boat to be rowed or propelled in the same direction as the rower faces, even though the latter exerts the normal pull rather than push on the oar handles.

Another object of this invention is to provide an oar construction in which the blade of the oar moves in the same relative direction as the push or pull exerted by the oar handle.

Another object of this invention is to provide an oar construction which will permit the rower to propel the boat in the direction in which he is facing so that he can always see where he is going and determine what obstacles are in the path of the boat.

It is a further object of this invention to provide a simple and effective rowing mechanism so constructed and arranged that the rower can sit facing the bow of the boat as he manipulates such mechanism.

It is also a further object of this invention to provide a mechanism of this type in which the blade portion of the oar can be folded up closely to the sides of the boat or the same readily detached from the side of the boat and collapsed when desired.

It is another object of this invention to provide an oar having a blade portion and a handle portion such that the blade portion will be reeiprocated in the same directions to the movements of the handle portion providing a divided oar member, such divided oar member being pivotally journaled on the gunwale guide or support of the boat.

It is another object of this invention to provide a rowing mechanism whereby the oar is pivotally mounted to permit the rower to face the bow and to provide easy raising and lowering of the oar into the water to obtain maximum push or pull of the boat due to proper inclina tion of the blade with respect to the boat and its position in the water.

Another object of this invention is to provide a bowfacing oarlock in which the plane of the blade of the oar during its movement through the water will be perpendicular to the surface of the water so that practically all of the energy applied thereto will be utilized in propelling the boat.

I ly by means of a rearward pull on the oars.

Another object of this invention is to propel a novel oar structure designed for either forward or backward rowing and readily convertible from one type to the other.

Another object of this invention is to provide an oar structure for both forward and backward rowing, and in which the necessary up-and-down angular movement of the oar for dipping the blade into and lifting it from the water is provided in either of the manners of use of the oar.

Another object of the invention is to provide an oar of the above kind that is of simplified, yet durable, construction and especially desirable for pleasure craft.

3,156,934 Patented Nov. 17, 1964 ice 1 Other objects of the invention reside in the details of construction of parts, in their combination and mode of use, as will hereinafter be fully described. However, it is to be understood that changes in size and proportion of parts may be made and various materials may be employed in their construction Without departing from the spirit of the invention, and therefore it is not desired that the claims appended hereto shall be limited in this respect but they shall be given an interpretation that is commensurate with the scope of the invention disclosed herein.

In accomplishing the above-listed and other objects of the invention, I have provided the improved details of construction, the preferred form of which is illustrated in the accompanying drawing, wherein:

FIGURE 1 is a sectional top view of a row boat, employing my novel rowing mechanism;

FIGURE 2 is an enlarged sectional view illustrating my novel rowing mechanism or construction for the right side of the boat;

FIGURE 3 is a sectional view of the novel rowing mechanism in a locked or out-of-use position;

FIGURE 4 is an enlarged sectional view of the right side of the boat looking from the inside out and taken along line 44 of FIGURE 2;

FIGURE 5 is an outside perspective View of the right side of a portion of the boat and illustrating the novel mounting mechanism for my novel oar or rowing construction; and

FIGURE 6 is a sectional view taken substantially along line 6-6 of FIGURE 5 and illustrating the oar fastening mechanism.

With reference now to the drawings there is shown a rowboat, generally indicated as 1, having stern 2, port side 3, starboard side 4, and bow portion 5 (not shown completely), the boat 1 having port and

starboard gunwales

6 and 7 mounting rowing devices or oar mechanisms 8 and 9 by oar lock structures 10 and 11 between the operators or

rowers seats

12 and 13. In this respect it will be noted that though the rowing structures 8 and 9 are mounted toward the stern 2 they can be mounted also toward the bow 5 of the boat 1 as well. The oar devices 8 and 9 are identical in all respects and therefore discussion will be limited to the right or starboard oar structure 9 which comprises a blade portion 14 and a handle portion 15, the blade portion 14 having a blade 16 at the outer end and an inner gear portion 17 at the inner end having a cluster of teeth 18 circumferentially about a greater outer peripheral portion of gear 17, gear 17 being attached to blade element 14 by bolt means 20. The gear 17 has coupled to its upper surface 21 one end 21a of a link or plate 22 by bolt means 23 and gear 17 meshes with gear teeth 24 circumferentially arranged on gear portion 25 as in the case of gear portion 17 and the link 22 has its other end 26 connected to top surface 27 of gear 25 by bolt means 28, gear 25 being coupled to handle part 15 by bolts means 29. It is to be noted that the

bolts

28 and 23 present a central pivot for their

respective gears

17 and 25, each

gear

17 and 25 rotating about its

bolt

23 and 28 while their

teeth

18 and 24 interlock or mesh with one another permitting the

gear sections

17, 25 to carry coupled

parts

14 and 15 together in unison in a forward or rearward direction. The

bolts

23 and 28 present fixed pivots in that each passes through

gears

17 and 25 and each passes through respective flanges or

ears

31 and 30 of oar carriage plate or element 32 which supports the oar structure 9 carried in look or bed 11 secured on the starboard gunwale 7.

The flanges or

tabs

30 and 31 which carry or support the

gear sections

25 and 17, are joined with the elongated U-shaped plate portion 33 of member 32 having a pair areas-ea of depending

journal parts

34 and 35 apertured with

openings

32a, 32b to present a pair of journals for elongated shaft 36 reciprocally mounted and rotatively journaled therein'and limited in horizontal fore and aft shifting movement by pin 37 extending outwardly of shaft or beating rod 36. The shaft or key 36 in elevational view as seen in FIGURE 4 has at its right end an arm or handle 37a extending generally outwardly and somewhat slightly downwardly and at right angles to shaft portion 38 of key 36. The key 36 is generally cylindrical or circular in its shape throughout but as seen in FIG- URE 4 is provided with a ground flat or slotted portion 40 having 180 apart

flat sides

41 and 42 disposed be

tween trunnion portions

34 and 35 and has at its left end outwardly of trunnion 34 another flat 45 having 180 apart

fiat sides

43 and 44.

, ment 11 and upright ears or trunnions 5.4 and 55 spaced a predetermined distance apart from one another to allow depending

ears

34 and 35 of plate or brace 32 to be spaced within as shown in FIGURE 4, the upright trunnions d and 55 each having a respective pin cradle or key cradle or slot 56 and 57 respectively, the slots or keyways 56, 5'7 having each a pair of

upright walls

53, 53 and a semicircular or crescent

shaped surface

62, 62 respectively,

' the

surfaces

62, 62 being journals for the rotatable key or shaft 36 as seen in FIGURE 4 and the handle 37a being entrained in slot 63 formed between upright 54 and upright detent or stop 64 on flat 52 of 'of L-shaped member 50 gf'the oar catch 11.

The link 22 has a drilled hole 65 and portion 33 of member 32 has drilled hole 66 aligned therewith for selective and alternate complemental fixing alignment or registrywith drilled hole 67 or 68 or gear portion 25 of handle part 15 by insertion of key or pin '75 through opening 65, appropriate opening 67 or 68, and opening 66. If pin 75 is inserted through holes 65, 6'7, and 66, the gear portion 25 is in longitudinal alignment with gear portion 17 and presents a rigid oar member 14 wherein its

parts

14 and 15 are rigid and can not move with respect to one another, allowing the oarsman to remove the oar in order to paddle with the oar in canoe fashion for propelling the boat. If par 8 or 9 is collapsed in a folded position (FIG. 3), then pin 75 can be inserted into

openings

65, 66, 68 to maintain the oar in compact out of use position whether the oar 8 or 9 is attached to its respective oar lock and 11 or not.

Either oar construction or device 8 or 9 is assembled to its respective carriage or oar lock structure 10 or 11 as follows. The oar unit 8 or 9 is held in the hand with pin 75 removed and the key or lever 36 is inserted into keyways 62 such that

flats

41, 42 of part 40 and

flats

43, 44 of parts 45 are vertical with handle parts 37a

upright toallow faces

41, 42, 43, 44 to pass between faces 58 of parts 54, 55 (as exemplified in FIG. 6 for the flat part 45), permitting round shaft 36 to be cradled in crescent shaped surfaces 62 of keyways 56, 57 whence bolt or key 36is pushed forward toward bow of boat and rotated to place handle 37a down into slot 63, thus locking oar structure 9 to its oarlock'or bracket 11 and preventing disengagement of key 36 from keyways 56, 57. By such an arrangement the member 32 of oar structure 11 is allowed to move to and fro and rotate in a vertical plane 1 about shaft or coupler 36 and the oar section can 'pivotally flex .or jacknife in a generally horizontal or a commori'plane with respect tooar section 14 because of pivotbolt's23 and 28 and meshing of gears 17 and 2.5.

As seen in FIGURE 1 in dotted lines, as handle portion 15 is drawn toward the stern as the operator faces the how, the oar unit has its outer portion 14 and blade 16 therewith drawn through the water in the same direction as the handle 15. Since the paddle portion 16 is drawn rearward through the water the boat is propelled forward in the direction the oarsman is facing as shown by arrows in FIGURE 1.

Since the oar rotated is in vertical planes the face of the blade or paddle is perpendicular with respect to the surface of the water and this results in maximum application of rowing force.

Thus what is disclosed here is a novel rowing device or oar unit that is uncomplicated in construction and conducive to manufacture and allows the oarsman to face the direciton of rowing and to see in the direction the boat is moving. In the alternative the oarsman may lock the oar structure to act as a unitary or integrated rigid oar structure for rearward facing rowing in a conventiorn al manner. This design also aids the oarsman in easy manipulation of the oars and permits maximum rowing output with a minimum of effort. This design also permits one to collapse the oars readily and simply for easy and compact storage of the oar when out of use.

In view of the foregoing description taken in conjunction with the accompanying drawings it is believed that a clear understanding of the device will be quite apparent to those skilled in this art. A more detailed description is accordingly deemed unnecessary.

It is to be understood however, that even though there is herein shown anddescribed a preferred embodiment of the invention the same is susceptible to certain changes fully comprehended by the spirit of the invention as herein described and the scope of the appended claims.

What is claimed is:

1. A bow facing rowing device for a boat having an oar paddle section and an oar handle section, comprising interlocking means on the sections engaging one section with the other, link means pivotally connected with each section providing forward and rearward in unison motion of the sections with respect to. one another in a common plane about an axis of each section, mounting means on the boat transverse to the sections, and removable key means being removably carried on the oar mounting means and being rotatively and reciprocally movable in the mounting means from a first unlocked position to a second locked position, and the link means being rotatively journalled with the key means in a plane transverse to the key means, said mounting means having a pair of spaced apart grooves, and said key means comprising a member extending transversely to said link means and having portions rotatably mounted in said grooves, each groove having an inner enlarged opening and an outer reduced opening, and said member having a pair of reduced parts each reduced part being complementally received in the reduced opening of a respective groove in the first position of the key means and having a pair of enlarged parts each enlarged part being complementally received in the enlarged opening of a respective groove in the second positionof the key means attendant to locking the sections to the mounting means, and said key means having radial extension means en-. gageable with the mounting means in the second position in limiting axial movement of the key means in the mounting means and preventing withdrawal of the key means from the mounting means. I

2. A bow facing rowing device for a boat having an oar paddle section and an oar handle section comprising interlocking means on the sections engaging one section with the other, link means disposed on the gear sections and pivotally interconnecting the oar sections providing in unison fore and aft motion thereof in a. common plane. oar bracket means mounted on the boat including a pair of elements spaced apart from one another and each element being provided with a groove, oar carriage means 5 6 having a pair of members and each member having an venting Withdrawal of the key means from the mountaperture in registry with a respective groove of the eleing means. ment, and key means removably extending through the apertures and the grooves and having locking portions eX- References Cited in the file of this Patent tending in and reciprocally and rotatably extending 5 UNHED STATES PATENTS through the apertures and grooves from a first unlocked 1 position to a second locked position attendant to locking i g the elements with the members, and said key means hav- 1 565056 Cervera S 1925 ing radial extension means engageable with the oar brack- 1689714 Bums O i 1928 et means in the second position in limiting axial move- 10 2051424 Schenk 1936 ment of the key means in the oar bracket means and pre-

Claims

2. A BOW FACING ROWING DEVICE FOR A BOAT HAVING AN OAR PADDLE SECTION AND AN OAR HANDLE SECTION COMPRISING INTERLOCKING MEANS ON THE SECTIONS ENGAGING ONE SECTION WITH THE OTHER, LINK MEANS DISPOSED ON THE GEAR SECTIONS AND PIVOTALLY INTERCONNECTING THE OAR SECTIONS PROVIDING IN UNISON FORE AND AFT MOTION THEREOF IN A COMMON PLANE, OAR BRACKET MEANS MOUNTED ON THE BOAT INCLUDING A PAIR OF ELEMENTS SPACED APART FROM ONE ANOTHER AND EACH ELEMENT BEING PROVIDED WITH A GROOVE, OAR CARRIAGE MEANS HAVING A PAIR OF MEMBERS AND EACH MEMBER HAVING AN APERTURE IN REGISTRY WITH A RESPECTIVE GROOVE OF THE ELEMENT, AND KEY MEANS REMOVABLY EXTENDING THROUGH THE APERTURES AND THE GROOVES AND HAVING LOCKING PORTIONS EXTENDING IN AND RECIPROCALLY AND ROTATABLY EXTENDING THROUGH THE APERTURES AND GROOVES FROM A FIRST UNLOCKED POSITION TO A SECOND LOCKED POSITION ATTENDANT TO LOCKING THE ELEMENTS WITH THE MEMBERS, AND SAID KEY MEANS HAVING RADIAL EXTENSION MEANS ENGAGEABLE WITH THE OAR BRACKET MEANS IN THE SECOND POSITION IN LIMITING AXIAL MOVEMENT OF THE KEY MEANS IN THE OAR BRACKET MEANS AND PREVENTING WITHDRAWAL OF THE KEY MEANS FROM THE MOUNTING MEANS.