Rod

 

(57) Abstract:

Usage: in mechanical engineering, in particular in the manufacture of bicycles. The inventive connecting rod includes a head 1, a stem 2, are located symmetrically relative to the longitudinal axis of the stem 2 to 3 feet with holes for mounting the drive sprocket. Tarsi 3 made in the form of individual parts, with emphasis 4. The stem 2 has a cruciform cross-section with a tab 5 which interacts with the stop 4. The part with the tabs 3 is mounted on the cylinder 1, after which the end face of the head resultatives. Cranking feet 3 relative to the head 1 prevents the stop 4, which interacts with the protrusion 5 of the stem 2. 1 C.p. f-crystals, 3 ill.

The invention relates to the field of engineering, in particular to the production of bicycles.

Known connecting rods, made in a single casting.

A known design of a connecting rod, selected as a prototype, containing a head, the stem and located symmetrically relative to the longitudinal axis of the stem legs with holes for mounting the drive sprocket, with one of the legs is made in one piece with the stem of the connecting rod and has a notch that falls into the inclined section of the ledge, when this hole is the construction, the rod is-low-tech item, difficult in the manufacture in mass production. In addition, harvesting of the connecting rod may be used only for making the right rod.

The aim of the invention is to improve the manufacturability of a rod.

This goal is achieved by the fact that the rod includes a head, a stem and located symmetrically relative to the longitudinal axis of the stem legs with holes for mounting the drive sprocket. While the legs are made as separate parts rigidly attached to the cylinder rod, and to prevent turning of the legs relative to the head on them is made the focus, interacting with the stem of the connecting rod. The stem of the connecting rod for improved reliability can be performed with a cross-section with a protrusion which interacts emphasis.

Comparative analysis of the proposed solutions with the prototype shows that the inventive rod is characterized by the fact that the legs are made as separate parts, with emphasis interacting with the stem of the connecting rod, the stem of the connecting rod has a cruciform cross-section, with one of the protrusions which interacts emphasis.

Thus, the inventive rod meets the criteria of the invention "noviasky the solutions to this and related areas of technology, that allows to conclude that the criterion of "substantial differences".

In Fig. 1 shows a General view of the rod of Fig. 2 - the same, lateral view; Fig. 3 - section a-a in Fig. 2.

The rod includes a head 1, a stem 2, are located symmetrically relative to the longitudinal axis of the stem 2 to 3 feet with holes for mounting the drive sprocket. Tarsi 3 made in the form of individual parts, with emphasis 4. The stem 2 has a cruciform cross-section with a tab 5 which interacts with the stop 4. The part with the tabs 3 is mounted on the cylinder 1, after which the end face of the head resultatives. Cranking feet 3 relative to the head 1 prevents the stop 4, which interacts with the protrusion 5 of the stem 2.

The use of the proposed rod improves the manufacturability of the parts of the rod, you can use one of the blanks for the manufacture of right and left connecting rods.

1. The ROD containing the head, stem and located symmetrically relative to the longitudinal axis of the stem legs with holes for mounting the drive sprocket, wherein the legs are made as separate parts with a focus for engagement with the stem to prevent turning of the legs carries is of Astapov which made interoperable with emphasis.

 

Same patents:

FIELD: transport engineering; bicycles; foot crank mechanisms.

SUBSTANCE: left-hand crank 3 is provided with square hole for mounting on shaft 1 and cylindrical groove with thread mating with hollow bolt 2 freely fitted on shaft 1. Said bolt thrusts through its left-hand end face surface against support bead of shaft. With left-hand crank 3 tightened by hollow bolt 2, shaft 1 is fitted in bearing unit, and left-hand bearing 8 prevents turning out of hollow bolt 2. Thread is made on outer surface of shaft 1 from right-hand side of shaft on which union nut 4 is installed to support right-hand bearing 9. Body of nut is made in form of cylindrical bushing of which driving sprockets 5 are mounted for free rotation. Bead of union nut 4 limits axial displacement of sprockets 5. Groove with thread is made in sprocket hub 6, and thread is made on outer surface of hub of right-hand crank 7 to provide possibility of tightening of right-hand crank 7 provided with square hole for mounting on shaft 1 by freely rotating hub 6 of sprockets which plays the part of nut.

EFFECT: prevention of spontaneous turning out of bottom bracket parts, provision of sealing of bottom bracket.

5 cl, 2 dwg

Bicycle pedal // 2278055

FIELD: transport engineering; bicycles.

SUBSTANCE: invention relates to fastening of bicycle pedals on shaft of crank. Two bearing units 3, 4 are arranged on shaft 1, with hollow housing of pedal 5 fitted on bearing units. One of bearing units, namely unit 3, is mated with surface of crank 2. thread is made on inner surface of hollow housing of pedal 5 in which hollow bolt 6 is fitted to serve as stop for other bearing unit 4. Nut 7 thrusts bearing unit 4 from outer side of shaft 1. Thrust end face surface of hollow bolt 6 is arranged at distance equal to approximately 1/4 of length of housing of pedal 5 from its axis of symmetry along shaft 1 in outward direction.

EFFECT: decreased deformation of pedal shaft owing to reduction of arm creating bending moment, facilitated assembling of pedal.

3 dwg

FIELD: transport engineering; bicycles with crank-and-connecting rod transmission.

SUBSTANCE: proposed bicycle contains frame 1, driven sprocket 5, driven sprocket 2, chain, steering column 6 with handlebar. Reciprocating pedals are secured to levers to of driven sprocket 2 through rigid tie-rods 3. Devices to bring levers of driving sprocket 2 out of extreme point is hinge-secured on frame 1 and on rigid tie-rods 3. Frame 1 of bicycle provides distance of 10 cm between front and rear wheels in operating position of bicycle. Compactness of bicycle at shipment is provided by pressing of pedals to tie-rod 3.

EFFECT: use of rider weight as main moving force.

2 cl, 2 dwg

Bicycle pedal // 2343083

FIELD: transport.

SUBSTANCE: pedals are supplied with devices fastening footwear and are installed on cranks with possibility to automatically change crank length. Pedal frame (1) contains rectangular horizontal plate (2) having on its upper surface devices (5, 6) fastening bicyclist footwear and girdle (3) on one of its longitudinal edges with pedal axle (4) secured on crank. Plate (2) is connected with girdle (3) so that its upper surface is located below pedal axle (4) at distance (a) and axis (7) of footwear support on plate (2) of pedal located in frontal plane crossing bicyclist metatarsus of hallux when bicyclist revolves pedal is placed in front of pedal axle (4) at distance (b) so that axis (7) of footwear support circumscribes circle with centre (O') and radius (r') displaced below at distance (a) and at distance (b) forward in respect of circle with centre (O) circumscribed by pedal axle (4), where (O) is axis of carriage unit with radius (r).

EFFECT: acceleration of dead points passing and increase of torque.

17 cl, 16 dwg

Bicycle pedal // 2343083

FIELD: transport.

SUBSTANCE: pedals are supplied with devices fastening footwear and are installed on cranks with possibility to automatically change crank length. Pedal frame (1) contains rectangular horizontal plate (2) having on its upper surface devices (5, 6) fastening bicyclist footwear and girdle (3) on one of its longitudinal edges with pedal axle (4) secured on crank. Plate (2) is connected with girdle (3) so that its upper surface is located below pedal axle (4) at distance (a) and axis (7) of footwear support on plate (2) of pedal located in frontal plane crossing bicyclist metatarsus of hallux when bicyclist revolves pedal is placed in front of pedal axle (4) at distance (b) so that axis (7) of footwear support circumscribes circle with centre (O') and radius (r') displaced below at distance (a) and at distance (b) forward in respect of circle with centre (O) circumscribed by pedal axle (4), where (O) is axis of carriage unit with radius (r).

EFFECT: acceleration of dead points passing and increase of torque.

17 cl, 16 dwg

FIELD: transport.

SUBSTANCE: drive sprocket rims are arranged on overrunning coupling. Drive comprises pair of boomerang-like bell cranks, each having pedal arm resting upon opposite ends of carriage shaft and arm that transfers torque. Both aforesaid arms are bent in the plate perpendicular to carriage axis to form boomerang-like shape. Arm that transfers torque is rigidly coupled with similarly bent element intended for transfer of toque to carriage shaft. Overrunning coupling is rigidly coupled with aforesaid elements that transfer torque. Pedal arm of one of the levers and arm that transfers torque are furnished with weights rigidly fixed thereon. Aforesaid drive is designed for bicycles, bicycle-tandems and bicycles with trailers.

EFFECT: optimising pedaling, increased tractive characteristics.

30 cl, 14 dwg, 4 tbl

FIELD: transport.

SUBSTANCE: drive sprocket rims are arranged on overrunning coupling. Drive comprises pair of boomerang-like bell cranks, each having pedal arm resting upon opposite ends of carriage shaft and arm that transfers torque. Both aforesaid arms are bent in the plate perpendicular to carriage axis to form boomerang-like shape. Arm that transfers torque is rigidly coupled with similarly bent element intended for transfer of toque to carriage shaft. Overrunning coupling is rigidly coupled with aforesaid elements that transfer torque. Pedal arm of one of the levers and arm that transfers torque are furnished with weights rigidly fixed thereon. Aforesaid drive is designed for bicycles, bicycle-tandems and bicycles with trailers.

EFFECT: optimising pedaling, increased tractive characteristics.

30 cl, 14 dwg, 4 tbl

Bicycle pedal // 2395425

FIELD: transport.

SUBSTANCE: invention relates to bicycle production. Bicycle pedal represents a hollow vessel with water filling and discharging valve and built-in flexible hose. Pedal and hose are filled with water.

EFFECT: perfected pedal design.

1 dwg

Bicycle pedal // 2412853

FIELD: transport.

SUBSTANCE: invention relates to bicycle design, namely, to that of bicycle pedals. Proposed pedal comprises rigid frame, front seat, heel seat, central toe clip arranged on one side of the pedal, ratchet-and-pawl gear and counterweight. Said ratchet-and-pawl gear consists of ratchet gear fitted on pedal axle and three pawls. Counterweight is locked on pedal bottom part and consists of thrust and spacer plates. Front tow clip is arranged on the end of front seat. Heel seat is rigidly secured with one end of the brace, the other brace end is connected with central toe clip.

EFFECT: perfected design of bicycle pedal.

21 dwg

FIELD: transport.

SUBSTANCE: invention relates to bicycles with reciprocating foot levers that make pedals move as in walking or running. Proposed drive comprises swinging supports 16 and levers 7 fitted via ratchets 6 on crosswise drive shaft 3, gear with drive sprocket coupled via chain with driven sprocket fitted on drive wheel axle. Swinging levers 7 incorporates top and bottom hinges 15, 24. Bottom hinges 15 allow bicyclist to bend and straighten knees in pedaling supports 16. Top hinges 24 reduce air drag by allowing crosswise drive shaft 3 to go down, as well as transparent cabin 1 that features minimum air drag.

EFFECT: reduced air drag, higher comfort.

1 dwg

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