Dennemeyer Octimine

Bicycle patents

Laura HorcajadaLaura Horcajada

Recumbent bicycle with improved rear wheel support and pedal locating method

A recumbent bicycle or recumbent tricycle, front or rear wheel powered, is presented with a unique rear wheel attachment method, unique pedal locating and adjustment method for front wheel drive recumbent human powered vehicles, and several other embodiments related to the invention.The rear wheel mounting method, comprising traditional bicycle components arranged in a unique way to provide advantage over prior art. The rear wheel mounting method comprising components traditionally associated with bicycles used to attach the front wheel that are uniquely used to attach the rear wheel instead. This approach could be used for both bicycles and tricycles and provides advantage when attaching the rear wheel or wheels by enabling utilization of off-the-shelf parts, as well as flexibility in the choice of fork such as rigid or shock-absorbing or other fork designs. Especially in the case of shock-absorbing forks, when used for the rear wheel or wheels, a significant reduction in complexity is achieved over prior art. Similar rear-suspension recumbent bicycles or tricycles are significantly more complex and require many frame-specific components, reducing choices for the owner.The pedal locating and adjustment method consists of traditional pedal and bearing components arranged in a unique way to provide advantage over prior art. The pedal locating and adjustment method, comprised of the unique combination of prior art, permits the pedals to slide axially along a supportive beam with a retaining mechanism used to rigidly fix its' position once the assembly is located in the desired position.In the case of a front-wheel-powered recumbent bicycle utilizing a shock-absorbing fork, benefit will be found from a chain tensioner herein described.Various embodiments are revealed that are detachable or permanently affixed to the rear of the recumbent vehicle and provide support for bicycle Panniers common to the industry as well as tandem rider components, or other utility items.A fairing assembly is revealed that is detachable or permanently affixed to the recumbent vehicle and provides protection from the elements and/or reduces wind drag.

Publication number: US2016264202A1 | Search similar patents

Frame for a human-powered vehicle

The preferred embodiments provide a frame for a one person three-wheeled human powered vehicle, the rear portion of which resembles an upright bicycle frame capable of supporting a fixed rear drive wheel substantially in alignment with the frame centerline. The frame has a left-side lateral extension and a right-side lateral extension, each of which includes a head tube at or near its outer end where front forks or steering posts can be secured. Each front fork or steering post can then hold one of two front steerable wheels. The frame is compatible with shock-absorbing suspension technology, which can be employed if desired.

Publication number: WO2015020685A2 | Search similar patents

Aerodynamic bicycle

The aerodynamic bicycle comprises a bar or beam which connects at the rear to the rear wheel hub and at the front to a exoskeletal handlebar and downward extension which attaches to the front wheel. Just forward of the rear wheel, a vertical tube is attached to the bar so that it has limited pivoting capability. At the top of the vertical tube, a second tube inserts slidably within the vertical tube and is supported therein by a shock-absorbing device or material. The bottom of the second tube provides the attachment means for the pedal crank and chain rings. Hand-holds and arm rests are integrated into the exoskeletal handlebar so the exoskeletal handlebar itself is used for steering. To permit a complete tuck for racing, a pair of mirrors is provided so the rider can keep his or her head down and rest his or her helmet on the exoskeletal handlebar but still see forward.This is a continuation of application Ser. No. 07/857,270, filed Mar. 25, 1992 now abandoned.

Publication number: US5324059A | Search similar patents

Bicycle accessory

In various embodiments a bicycle accessory to facilitate carrying, lifting, and transporting a bicycle is provided. The accessory includes a casing comprising an external cover, an interior cavity, the external cover having first and second sides, the second side having an exit slot; a reel within the interior cavity of the casing; a torsion spring retracting assembly coupled to the reel and within the interior cavity of the casing; and a retractable strap extending from the exit slot of the casing, the retractable strap having distal and proximal ends, wherein the proximal end of the retractable strap is affixed to the reel and the torsion spring retracting assembly within the interior cavity. The retractable strap is configured for extension of the distal end from the casing, at a first portion on the bicycle, and extended to a second portion on the bicycle thereby creating a means by which to carry.

Publication number: US2014339276A1 | Search similar patents

Three-wheeled cycle

A three-wheeled cycle is provided that can be ridden in an upright position. The cycle can have a suspension system for traversing rough terrain and for traction when turning. The front wheels can have a steering assembly comprised of a two-piece steering arm that clamps the handlebar to the front fork and connection rod with linkage pins. Furthermore, the design of the cycle can be favorable for transport of additional cargo loads.

Publication number: US2015069732A1 | Search similar patents

Recumbent bicycle

A recumbent bicycle that has a short main frame, a small front wheel, a hub and crank that is in close proximity of the steering tube, and an aesthetically designed and integrally mounted shock absorber seat.

Publication number: US5284351A | Search similar patents

Convex bicycle mirror

Adjustable, multi-directional viewing, convex-shaped bicycle mirrors mounted as one assembly to the fork, handle bars or frame of a bicycle, reflecting in the forward and backward direction of the cyclist. When a cyclist is in the crouched riding position with his face pointed toward the ground for less wind resistance, the mirrors can be optically canvassed simultaneously, surveying in the forward direction for objects being approached and in the rear direction for objects approaching the cyclist. When attached to the bicycle to be closer to the bicyclist's face while he is riding in the standing position, the bicyclist can survey the forward preceding extent and/or backside approaching objects in the mirror while also negotiating diminutive objects upcoming on the ground.

Publication number: US2007091480A1 | Search similar patents

Recumbent bicycle

A recumbent bicycle is powered by the driving of a crank spindle that rotates on an axis generally coincident with that of the front wheel. The crank spindle is disposed within a spindle housing supported from the front of the bicycle frame, and the spindle housing supports the front wheel through a steerably turnable intermediate hub. Steering of the handlebars causes the front wheel to turn to steer the bicycle, while the crank spindle remains in a fixed orientation to the frame so that the bicycle can be continuously driven with pedals connected to the crank spindle, which in turn is connected to the rear wheel through a sprocket and drive chain assembly.

Publication number: US4773663A | Search similar patents

Real-time bicycle-mounted pedal stroke power analysis system

An apparatus and system for monitoring, analyzing and displaying the power applied by a user during operation of a pedal assembly are described. A hub assembly includes a sensor such as one or more strain gauges and is mounted in the rear wheel of a bicycle for detecting the torque and angular velocity applied during pedaling. The detected information is then transmitted to a receiver module, which sends the information to a computer that is fixedly coupled to, for example, the handlebars of the bicycle. The computer then processes the received information and outputs to a display a real-time or near real-time graphical representation of the power applied during the pedal stroke.

Publication number: EP1981751A2 | Search similar patents

Easy riding bicycle

A bicycle design includes a seat tube (52) affixed to the chain stay (64) at a fixed distance rearward of the bottom bracket so that the rider sitting on the saddle can comfortably fully extend one leg to place a foot flat on the ground or to use the proper full leg extension for pedaling. The rider sits comfortably upright on the saddle while pedaling and can pedal while standing up. Increasing the height of the saddle by extending the seat post tube for a taller rider increases the space between the saddle and the handle bars. The fixed distance may be in the range of about 4" to 8" and most preferably about 6". The seat tube is preferably affixed to the chain stay frame member at an angle of about 66.5 and the head tube at an angle of about 68.

Publication number: EP1687196A2 | Search similar patents

Recumbent tricycle

A human-powered recumbent tricycle which leans as it turns is disclosed. It consists of a front and a rear section, connected by means of a pivot joint (150), which is inclined towards the rear section and, as a result, permits the front section to lean as it turns. The front section consists of a frame (10), drivetrain (30), seat (40) and front wheel (20). The drivetrain powers the tricycle in a manner similar to a bicycle. The rear section consists of a frame (100) and two freely-rotating wheels (110,120), with a steering control bar (160), which the rider uses to steer the vehicle, mounted underneath the rear frame (100). Due to the inclined nature of the pivot joint (150), the front section leans as it rotates relative to the rear section. To accommodate a number of rider heights, the seat position is adjustable, and the rear frame (100) may carry a number of different structures, such as a cargo container or a set of seats for transporting people.

Publication number: EP2147852A1 | Search similar patents

Stationary exercising bicycle apparatus

The disclosed stationary exercise bicycle apparatus has a bike unit, a road device unit, and a motion coordinator coupling said bike unit relative to the road device unit. The bike unit has a single wheel supported on and vertically over a non-powered substantially free-wheeling rotatable member of the road unit, and is frictionally coupled to roll on this rotatable member; and the motion coordinator pivots the bike unit frame relative to the road device at a location rearwardly spaced both from the bike unit seat and from the contact region between the wheel and rotatable member. The wheel thus transmits a force against the rotatable member that is related to the rider's weight and to the moment arm distances between the pivot mounting, seat and the contact region, making the degree of difficulty in manually pedaling the wheel automatically responsive to the rider's weight; and whereby the wheel rolling against the rotatable member transmits feedback vibrations to the seat. The pivot mounting may have alternative operative positions to change the moment arm distances for selectively increasing or decreasing the wheel force against the rotatable member. The seat may be adjusted to be forwardly of the contact region from the pivot mounting, thereby providing magnified wheel forces against the rotatable member greater than the rider's weight.RELATED APPLICATIONThis application is a continuation of my copending application filed Jun. 1, 1987 having Ser. No. 07/056,856; issued on May 15, 1990 as U.S. Pat. No. 4,925,183, and entitled Indoor-Rollbike Apparatus.

Publication number: US4958831A | Search similar patents

Bicycle suspension

The bicycle frame assembly has a number of rotatable members configured to absorb shocks and impacts associated with operation of the bicycle. An absorber (108) is pivotably connected to a forward end of a chain stay (72) and extends to a rocker arm (112) that is pivotably connected to the frame. A seat stay (70) is pivotably connected to a rearward end of the rocker arm and extends to the rearward end of the chain stay. The rearward ends of the seat stay and the chain stay are pivotably connected to rotate about a common axis (66,128).

Publication number: EP1982911A2 | Search similar patents

Apparatus and method for measuring pedalling efficiency

An apparatus for measuring the pedalling efficiency of a cyclist comprises a frame (2) having a set of rotatable pedals (6) attached thereto and at least one strain transducer (18) attached to said frame. An indicator means (21) is connected to said strain transducer (18) and is arranged to provide an indication of the cyclist's pedalling efficiency, said efficiency being dependent on the strain sensed in the frame.

Publication number: EP0956492A1 | Search similar patents

Bicycle for cycling, and wheel for using on one such bicycle

A bicycle that includes front and rear single-arm forks enabling the front and rear wheels to be mounted and demounted from the frame of the bicycle without necessitating the removal or repositioning of a transmission element, such as a chain, or the brake, if the bicycle is so equipped, each of the wheels including at least one flexibly and compressively rigid element connecting the central hub and the rim, such elements being asymmetrical with respect to a radial median plane defined by the rim, so that the hubs of the wheels are axially off-centered in relation to the radial median plane of the rim, while the radial median plane of the rims coincides with the general median plane of the frame. The invention is also directed to the wheel of the bicycle.

Publication number: EP1626892A1 | Search similar patents

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