公开(公告)号：US20210206462A1

公开(公告)日：2021-07-08

申请号：US15999487

申请日：2016-09-07

Applicant: Flexofold ApS

Inventor： Jack Skrydstrup

IPC: B63H1/24

Abstract: The present invention discloses a folding propeller (1) for a boat, e.g. for a sailboat or a multihull yacht, where said folding propeller (1) comprises a hub (2) for directly or indirectly fastening at a driveshaft connected to a motor, where said folding propeller (1) further comprises at least three individual blades (3), where each of said blades (3) comprises a blade root (4) arranged to pivot around a separate pivot pin (9), at said hub (2) in order to be either in a first and operative position, where the blade (3) is pointing mainly in a radial direction, or in a second and inoperative position, where the blade (3) is pointing mainly in an axial direction, where said pivot pin (9) comprises a first and second end (20, 21), where said hub (2) comprises a cut out (19) for each of said blade roots (4), and further comprises a set of holes (10) for installing said pivot pins (9).

公开(公告)号：US5573373A

公开(公告)日：1996-11-12

申请号：US343544

申请日：1995-02-09

Applicant: Steen C. Olesen ,  Sune Ehrenskjold

Inventor： Steen C. Olesen ,  Sune Ehrenskjold

IPC: B63H1/24

CPC classification number: B63H1/24

Abstract: A propeller in particular for a ship has blades each of which is pivotally arranged in the hub of the propeller so that the blade is capable of pivoting to and fro in an axial plane between forward and rearward positions. The blades are constructed such that each of the blade profiles formed as the intersecting face between a cylinder face coaxial with a propeller and a blade, is symmetrical in a position between forward and rearward positions which are determined by fixed stops in the hub and/or the simultaneous actions of the centrifugal force and the hydrodynamic pressure on the blade at a predetermined speed of rotation. This imparts a high efficiency and a quiet and steady operation to the propeller, when the ship navigates forwardly and rearwardly.

Abstract translation: PCT No.PCT / DK93 / 00188 Sec。 371日期：1995年2月9日 102（e）日期1995年2月9日PCT提交1993年5月28日PCT公布。 公开号WO93 / 24360 日期1993年9月12日特别是用于船舶的螺旋桨具有叶片，每个叶片枢转地布置在螺旋桨的轮毂中，使得叶片能够在向前和向后位置之间的轴向平面中来回枢转。 叶片被构造成使得形成为与螺旋桨和叶片同轴的气缸面之间的交叉面的每个叶片轮廓在前后位置之间的位置是对称的，这些位置由轮毂中的固定止动件确定，和/或 以预定的旋转速度同时作用离心力和叶片上的流体动力学压力。 当船舶向前和向后航行时，这为螺旋桨提供了高效率和安静稳定的操作。

公开(公告)号：US5494406A

公开(公告)日：1996-02-27

申请号：US246974

申请日：1994-05-20

Applicant: Hideaki Takada ,  Takao Aihara ,  Ikuo Nakazato ,  Ryuichi Kimata

Inventor： Hideaki Takada ,  Takao Aihara ,  Ikuo Nakazato ,  Ryuichi Kimata

IPC: B63H1/24 ,  B63H3/00 ,  B63H20/26 ,  F01N13/12

CPC classification number: F01N13/12 ,  B63H1/24 ,  B63H20/245 ,  B63H3/008

Abstract: A propeller for a boat having a plurality of recesses and a plurality of land portions arranged circumferentially alternately around an outer periphery of a propeller boss which is fitted over and connected to a propeller shaft. A boss of each of propeller blades and each of blade shafts disposed parallel to an axis of the propeller boss to rotatably support such propeller blade are accommodated in each of the recesses, and each of the land portions is provided with an exhaust passage extending axially through the land portion to permit an exhaust outlet in a body of a propelling device to be opened at a rear end face of the propeller boss. Thus, it is possible to discharge an exhaust gas from an engine through the inside of the propeller boss into water.

Abstract translation: 一种用于具有多个凹部的船用螺旋桨和多个陆地部分，其布置在安装在传动轴上并连接到螺旋桨轴上的螺旋桨毂的外周周向交替周向交替布置。 每个螺旋桨叶片的凸台和平行于螺旋桨凸台的轴线平行设置以可旋转地支撑这种螺旋桨叶片的每个叶片轴容纳在每个凹部中，并且每个陆部分都设有沿轴向延伸的排气通道 陆地部分允许推进装置的主体中的排气出口在螺旋桨毂的后端面处打开。 因此，可以将来自发动机的排气通过螺旋桨毂的内部排出到水中。

公开(公告)号：US4364711A

公开(公告)日：1982-12-21

申请号：US224799

申请日：1981-01-13

Applicant: Lennart H. Brandt ,  Ingvar O. Hultmark ,  Lars H. Petersson ,  Carl U. Soderbaum

Inventor： Lennart H. Brandt ,  Ingvar O. Hultmark ,  Lars H. Petersson ,  Carl U. Soderbaum

IPC: B63H1/22 ,  B63H1/24

CPC classification number: B63H1/24

Abstract: A boat propeller with foldable blades, a so-called folding propeller, in which the mounting axes of the blades in the hub are inclined towards the rotational axis of the hub, so that the blades are movable between their folded and unfolded positions by rotating essentially one-half turn.

Abstract translation: 具有可折叠叶片的船用螺旋桨，所谓的折叠螺旋桨，其中轮毂中的叶片的安装轴线朝向轮毂的旋转轴线倾斜，使得叶片可以在它们的折叠位置和展开位置之间移动， 一半转

公开(公告)号：US3709634A

公开(公告)日：1973-01-09

申请号：US3709634D

申请日：1971-01-20

Applicant: MICHIGAN WHEEL CORP

Inventor： LORENZ E

IPC: B63H1/22 ,  B63H1/24

CPC classification number: B63H1/22

Abstract: A foldable marine propeller assembly is disclosed having a pair of interengaged housing members that are releasably secured together by fasteners, locking the blade mounting swivel pin in blind sockets when so fastened, and that cooperatively define a recess for the securement nut to a drive shaft extending into the housing, the nut being retained against rotation.

Abstract translation: 公开了一种可折叠的船用螺旋桨组件，其具有一对相互接合的壳体构件，其通过紧固件可释放地固定在一起，当紧固时将叶片安装旋转销锁定在盲孔中，并且协同地限定用于固定螺母的凹部到延伸的驱动轴 进入壳体中，螺母保持不旋转。

公开(公告)号：US11667364B2

公开(公告)日：2023-06-06

申请号：US17454490

申请日：2021-11-11

Applicant: Torqeedo GmbH

Inventor： Frank Despineux ,  Janus Milojevic

IPC: B63H1/24

CPC classification number: B63H1/24

Abstract: The present disclosure relates to a folding propeller, comprising a hub, which may be driven via a drive shaft around a rotation axis, at least two propeller blades, which are pivotably arranged on the hub between a folded position and an unfolded position, and a propeller blade arresting means, which is configured for arresting the propeller blades in the unfolded position, wherein the propeller blade arresting means is movable relative to the hub in rotation direction between a starting position and an arresting position.

公开(公告)号：US20220144398A1

公开(公告)日：2022-05-12

申请号：US17454490

申请日：2021-11-11

Applicant: Torqeedo GmbH

Inventor： Frank Despineux ,  Janus Milojevic

IPC: B63H1/24

Abstract: The present disclosure relates to a folding propeller, comprising a hub, which may be driven via a drive shaft around a rotation axis, at least two propeller blades, which are pivotably arranged on the hub between a folded position and an unfolded position, and a propeller blade arresting means, which is configured for arresting the propeller blades in the unfolded position, wherein the propeller blade arresting means is movable relative to the hub in rotation direction between a starting position and an arresting position.

公开(公告)号：US4297079A

公开(公告)日：1981-10-27

申请号：US168034

申请日：1980-07-14

Applicant: Don J. Marshall

Inventor： Don J. Marshall

IPC: B63H1/24 ,  B63H3/00 ,  B63H1/22

CPC classification number: B63H3/00 ,  B63H1/24 ,  B63H3/008

Abstract: A variable pitch marine propeller having a plurality of circumferentially spaced apart blades mounted on axles at the root portion of the blades in a hub to permit independent movement of each of the blades about an axis of rotation substantially parallel to the axis of the hub between a first nested position adjacent the hub and a second extended position. Each of the blades includes leading and trailing striking surfaces or root segments on the root portion of the blades which are hub engageable upon initial rotation of the blade in either direction. Intermediate the leading and trailing segments of the blades are positioned cushioning means which may be mounted in either the hub or the blade root segments for inhibiting the shock of engagement of the blades and the hub upon initial start up of rotation of the hub or upon a sudden reversal of rotation of the hub. The cushioning means includes water entrance and graduated exit means with means to capture water therein to act as a shock absorber for the blades against the hub.

Abstract translation: 一种变桨距船用螺旋桨，其具有多个周向间隔开的叶片，其安装在轮毂的叶片的根部部分的轴上，以允许每个叶片围绕基本上平行于毂的轴线的旋转轴线在 邻近轮毂的第一嵌套位置和第二延伸位置。 每个叶片包括在叶片的根部上的前缘和尾部敲击表面或根部段，毂是在叶片沿任一方向初始旋转时啮合的。 中间的叶片的前段和后段被定位为缓冲装置，其可以安装在轮毂或叶片根部段中，用于在初始启动轮毂的旋转或在一个或多个叶片的旋转时抑制叶片和轮毂接合的冲击 轮毂突然转动。 缓冲装置包括水入口和刻度出口装置，其具有在其中捕获水的装置，以用作用于叶片抵靠毂的减震器。

公开(公告)号：US4094614A

公开(公告)日：1978-06-13

申请号：US633417

申请日：1975-11-19

Applicant: Torben Munk ,  Nils Oluf Ehrenskjold

Inventor： Torben Munk ,  Nils Oluf Ehrenskjold

IPC: B63H3/02 ,  B63H1/24 ,  B63H1/20

CPC classification number: B63H1/24

Abstract: A propeller such as a ship's propeller or screw comprises at least one propeller blade, and a propeller drive shaft. The propeller blade is mounted on the propeller drive shaft by employing a hub having a free end secured on the propeller drive shaft. The hub is provided with a central bore in the free end thereof. A pivot axis is defined mounted within the hub and perpendicular to the axis of the drive shaft. The pivot axis comprises a pivot shaft.The blade is pivotally mounted about the inner end of the blade freely about the pivot shaft, the pivot shaft intersecting the longitudinal direction of the blade. Abutment means for the blade are provided for limiting the free pivotal movement of the blade between two extreme positions at either side of the position in which the propeller blade extends substantially perpendicular to the axis of the shaft. The abutment means comprises a pair of abutment members secured in the bore to serve as abutments for the blades. The abutment members can be adjusted by a clasp nut mounted within the central bore. The abutment members are removably secured to the clasp nut, and has an abutment face for limiting the free pivotal movement of the blade.

Abstract translation: 诸如船舶螺旋桨或螺杆的螺旋桨包括至少一个螺旋桨叶片和螺旋桨传动轴。 螺旋桨叶片通过采用具有固定在螺旋桨传动轴上的自由端的轮毂安装在螺旋桨传动轴上。 轮毂在其自由端设置有中心孔。 枢轴定义为安装在轮毂内并垂直于驱动轴的轴线。 枢转轴线包括枢轴。

公开(公告)号：US3715171A

公开(公告)日：1973-02-06

申请号：US3715171D

申请日：1971-05-14

Applicant: MICHIGAN WHEEL CORP

Inventor： KETTNER R

IPC: B63H1/24

CPC classification number: B63H1/24

Abstract: A propeller for a powered boat wherein the blades of the propeller are open through centrifugal force to propel the boat and are closed when the boat is not being powered so as to reduce drag on the boat. The blades are maintained in the closed position by operation of ceramic magnets disposed adjacent the tips of the blades.

Abstract translation: 用于动力船的推进器，其中螺旋桨的叶片通过离心力打开以推进船，并且当船没有被供电时关闭，以便减少船上的阻力。 通过操作邻近叶片尖端的陶瓷磁体将叶片保持在关闭位置。