EA019942B1 - Collapsible bicycle - Google Patents

Abstract

The invention relates to transportation means driven by human's muscular, in particular, to collapsible bicycles. A proposed collapsible bicycle comprises a seat resting on a sliding part of a telescopic seat prop having a fixer of a seat position and connected to a folding back fork of the rear wheel by a hinged unit, kinetically connected with a foot drive, folding pedals are positioned outside a crank, and also a folding back fork having a fixer of developed position and a lock of folded position; a handlebar resting on an extending part of telescopic steering stem rigidly connected in the bottom by its stationary part to the front wheel fork and having a fixer of the handlebar height regulation; a hinged unit and a lock of the developed position of the folding back part of the telescopic steering stem; upper and lower frame tubes, the ends of which are mounded on axes of hinged units positioned on lower stationary part of the telescopic seat prop and the lower part of the telescopic steering stem and also have a limiter of their developed position. A novel feature is characterized in that the hinged unit axis of the folding back part of the steering stem is arranged at an acute angle α to a vertical plane P extending through a longitudinal axis of a bicycle in its developed position sufficient to provide a turn of the folding back part of the steering stem top-down clockwise with simultaneous synchronous handlebar turn by 90° for positioning thereof below parallel to the front wheel and for tight contact of said fold back part to the front wheel fork and their fixation by means of a fixer of the folded position of the fold back fork; a limiter of the developed position of the frame elements is arranged on one of them and axes of hinged units are positioned parallel on stationary parts of the seat prop and the steering stem for upper and lower frame elements at an acute angle β to a vertical plane P extending through a longitudinal axis of a bicycle in its developed position sufficient to provide a turn of the seat prop stem top-down counter clockwise and contacting the upper frame element and for performing bottom-up simultaneous synchronous turn of the front wheel fork in the same direction till positioning the front wheel in a recess in the lower frame element and simultaneous synchronous contact of the frame upper element with the lower element and fixing them by a fixer of the folded position thereof; the foot drive and also a fixer of the developed position and a fixer of the folded position of the fold back fork of the rear wheel are positioned on that fork, and a hinged unit of the fold back fork of the rear wheel is positioned on the lower frame element, wherein the axis of that hinged unit is at an acute angle ν to a vertical plane P extending through a longitudinal axis of a bicycle in its developed position sufficient to provide a turn of the fold back fork of the rear wheel clockwise prior to position it between the backside of bicycle frame elements and earlier folded seat prop with a seat and tight contact of the rear wheel fold back fork and earlier folded front wheel fork and their fixation using a fixer of the folded position.

Description

The invention relates to vehicles driven by the muscular power of a person, namely to folding bikes.

A folding bicycle is known, comprising a saddle resting on a sliding part 23 of the telescopic seatpost 1, equipped with a latch 24 for the height of the saddle and connected at the bottom by means of a hinge assembly with a hinged fork 16 of the rear wheel, on which the foot drive 3, kinematically connected to the rear wheel, is located with its crank on the outside of the left and right pedals; steering wheel, supported by the sliding part of the telescopic steering column rack 9, rigidly connected with its lower part to the front wheel fork and equipped with a steering wheel height lock: upper 11 and lower 5 frame links, the ends of which are mounted on the axes 10 of the hinge assemblies located on the lower part of the telescopic steering column racks 9, and on the axles 4, 12 of the hinge assemblies located on the lower part of the telescopic seatpost 1; and also the latch 22 of the unfolded and folded positions of the bicycle, including a sleeve 21, sliding on the surface of the seat post 1 and changing the angles of the articulated levers 19, 20 of the frame links 5, 11 of the intermediate lever 15, horizontal 16 and vertical 18 forks of the rear wheel when folding and deploying this bike [1].

This folding bike has the following disadvantages.

Firstly, the placement of the axes in the hinged nodes of the frame links 5, 11, levers 15, 18, 19, 20 at a right angle (90 °) to the vertical plane along the longitudinal axis of the bicycle made it possible to raise the steering column 9 with the front wheel when folded as well as fork 16 with the rear wheel to bring them closer relative to the seat post 1 in this plane and reduce the total length, but slightly, and slightly reduce the height of the saddle and handlebar, leaving the total width of the bike unchanged, which only slightly reduces its compactness s and makes it difficult to transport in the folded position.

Secondly, the presence of a large number of levers, hinge assemblies and auxiliary parts in the fixture of the unfolded and folded positions of the bicycle significantly complicates its construction, increases metal consumption and overall weight, and makes manufacturing more expensive.

Thirdly, manual interaction with the lock of the deployed and folded positions of the bicycle, as well as with the lock of the height of the saddle and the lock of the height of the steering wheel increases the complexity and slows down the process of re-arranging it from deployed to folded position and vice versa, which significantly complicates the service condition.

Known folding bike containing a saddle 6, resting on the sliding part 7 of the telescopic seatpost 8, equipped with a latch 8.2 height of the saddle 6 and connected below through a hinge assembly 25 with a folding fork 24 of the rear wheel 26, kinematically connected to the foot drive 32, on the crank 5 which on the outside is placed the left and right folding pedals, as well as equipped with a latch 34 deployed and a latch 35 of the folded position, the folding fork 24; steering wheel 16, based on the sliding part 12 of the telescopic steering column strut 11, rigidly connected at the bottom with the fork 12.1 of the front wheel 13 and provided with a lock for the height of the steering wheel 16, a hinge assembly 17 with a lock 12.2 of the deployed and folded positions of the hinged part 15 of this strut; the upper and lower frame links 21, the ends of which are placed on the axes of the hinge assemblies 22 located on the lower part 9 of the telescopic seatpost 8 and part 11 of the steering column 12, as well as equipped with a limiter 2 of their deployed positions [2].

The foot drive 32 is located lower on the lower part 9 of the telescopic seatpost 8 and is kinematically connected to the rear wheel 26 on the folding fork 24 through an intermediate gear-chain transmission 27 located on the common axis of the hinge assembly 25 of this fork.

The axis of the hinge assembly 25 of the hinged fork 24 of the rear wheel 26, the hinge assembly 17 of the hinged part of the steering column strut 11 and the hinge assemblies 22 of the frame links 21 are located at right angles (90 °) to the vertical plane P along the longitudinal axis of the bicycle in its unfolded and folded positions.

The latch 34 of the deployed and the latch 35 of the folded positions of the folding fork 24 are placed relative to the lower part 9 of the seat post on its additional extension part 8, and are also equipped with a limiter 32 of the deployed position of this fork.

This folding bike is the closest to the proposed invention in terms of technical nature and the achieved result.

However, it also has certain disadvantages.

Firstly, the placement of the foot drive 32 not together with the rear wheel 26 on its folding fork 24, but separately on the lower part 9 of the telescopic seatpost 8, made it necessary to use an additional intermediate gear-chain transmission 27 in it, which significantly increases the overall resistance and the attached the force in the kinematic system of this drive, significantly complicates the design, increases the metal consumption and weight of the bike, increases the cost of its manufacture, reduces performance in the deployed position and makes it difficult to carry position.

Secondly, the proposed implementation of the latch 34 of the deployed position and the latch 35 of the folded position of the hinged fork 24 of the rear wheel 26 required the use of, in addition to the sliding part 7, an additional second sliding part 8 relative to the lower part 9 of the seat post,

- 1 019942 which also significantly complicates the design, increases the dimensions, metal consumption and weight of the bicycle, makes its manufacture more expensive, reduces working capacity in the deployed position and makes it difficult to carry in the folded position.

Thirdly, the proposed arrangement of the axes of the hinge assemblies 22 of the upper and lower frame links 21, as well as the axes of the hinge assembly 25 of the hinged fork 24 at a right angle (90 °) to the vertical plane P along the longitudinal axis of the bicycle, made it possible to fold in this plane when folding close only the rear 7 and front 17 wheels, partially move the seatpost 3 to the steering column 15, lower the saddle 1 and the steering wheel 13, as a result of which the overall dimensions do not change at all and are not sufficiently reduced in length and height, which creates great inconvenience and difficulty when carrying it in the folded position.

Fourth, the presence of a very bulky latch 34 deployed and a latch 35 of the folded position of the hinged fork 24 of the rear wheel 26, the limiter 23 of the deployed position of the hinged fork 24 further complicates the design, increases the metal consumption and weight of the bicycle, makes its manufacture more expensive, reduces operability in the deployed position and makes it difficult to carry when folded.

Fifthly, the proposed implementation of the latch 34 deployed and the latch 35 of the folded positions of the hinged fork 24 of the rear wheel 26 requires considerable effort when manually applied to them, which significantly increases the complexity, complicates the conditions of service, and slows down the process of folding and unrolling the bicycle.

Sixth, the placement of the hinge assembly 25 of the hinged fork 24 of the rear wheel 26 on the fixed part 9 of the steering column strut 8 does not allow to increase the turning angle of this fork, which limits the possibility of its spatial location and the possibility of reducing the overall dimensions of the bicycle when folded.

Seventh, each folding and unfolding of the bicycle requires manual interaction with the lock 8.2 of the height of the saddle 6, which further increases the complexity, worsens the conditions of service and slows down the process of folding and unrolling the bicycle.

The objective of the invention is to simplify the design, reduce the size, metal consumption, total weight and manufacturing cost of the proposed bike, increase its performance when deployed, as well as facilitate and accelerate the folding process.

This problem is solved due to the fact that in the proposed folding bike containing a saddle resting on a telescopic seatpost extender, equipped with a seat height lock and connected below by means of a hinge assembly with a folding rear wheel fork, kinematically connected to the foot drive, on the crank of which folding pedals are located on the outside, as well as a folding fork equipped with an unfolded detent and a folded-position lock; a steering wheel supported by a telescopic steering column extension that is rigidly connected at the bottom with a front wheel fork and equipped with a steering wheel height lock, a hinge assembly and a deployed position lock for the telescopic steering column hinged portion; the upper and lower frame links, the ends of which are mounted on the axes of the hinge assemblies located on the lower part of the telescopic seatpost and the lower part of the telescopic steering column, as well as equipped with a limiter for their deployed position, in accordance with the invention, the axis of the hinged node of the hinged part of the steering column is not located a direct and acute angle α to the vertical plane P along the longitudinal axis of the bicycle when it is deployed, sufficient to ensure that the hinged part is rotated from top to bottom in h ace arrow with simultaneous synchronous rotation of the steering wheel by 90 ° until it is placed below parallel to the front wheel, as well as tight contact of the said hinged part with the front wheel fork and the automatic interaction of the additionally entered lock of its folded position; the limiter for the deployed position of the frame links is placed on one of them, and the axis of the hinge assemblies on the lower parts of the seatpost and steering column racks for the upper and lower frame links are parallel to each other and not at a right, but at an acute angle β to the vertical plane P along the longitudinal axis of the bicycle when in its deployed position, sufficient to provide a top-down turn counterclockwise to the seat post until it is placed on the back of the bike and in contact with the upper frame link, as well as the phenomenon of simultaneous simultaneous rotation in the same direction from the bottom up of the front wheel fork and the hinged part of the steering column strut previously mounted on it until the front wheel is placed closely in the deflection made for it on the lower frame link from its front side and at the same time, the upper and lower frame synchronously approach links to their tight closure and automatic interaction of the additionally entered latch of the folded position of these links; the foot drive, as well as the deployed latch and the latch of the folded positions of the rear wheel hinged fork, are located directly on this fork, and the hinge assembly of this fork is located on the lower frame link, and the axis of this assembly is not at a right, but at an acute angle γ to the vertical plane P along the longitudinal axis of the bicycle when it is deployed, sufficient to allow clockwise rotation

- 2 019942 to the arrow of the rear wheel hinge fork before placing it between the rear side of the bicycle frame links and the previously folded upright saddle post with the saddle, as well as the rear wheel hinge fork being firmly in contact with the previously folded front wheel fork and automatically interacting with the lock of their folded position.

The hinge assembly of the hinged part of the steering column strut is made in the form of a hinged part connected by the axis of the upper base and the lower base of the lower part of the strut, and the detent of the deployed position of the hinged part contains a cam with a handle, axle and return spring, placed between the racks located on the upper base, and on the lower base has a protrusion interacting with a spring-loaded deflecting figured cam, and a depression is made with the possibility of automatic stable placement of this cam in it with a flat SG closing the upper and lower bases of the bicycle in the unfolded position.

The limiter for the deployed position of the frame links is made in the form of a horizontal plate fixed on the tip, for example, of the upper frame link with the possibility of tight interaction of its end part with the fixed end part of the hinge assembly on the lower part of the telescopic steering column with the bicycle deployed.

The latch for the deployed position of the rear wheel hinge fork contains a limiter of the specified position and eyes located directly on this fork with a figured cam with a handle, an axle, a return spring and a stopper for its working position, as well as an I-shaped bracket fixed to the bottom of the telescopic seatpost with a transverse finger and the possibility of interaction of this finger with a deflecting spring-loaded figured cam, placing a stop in the eyelets made for it nests and automatic stable holding in them with a cam when the bicycle is fully deployed and when the limiter of the deployed position of the folding fork is in close contact with the lower frame link.

Each of the latches of the folded position, respectively, of the hinged fork of the rear wheel, the hinged portion of the steering column strut, and also the upper frame link, are made in the form of two mutually attracted permanent magnets with a force sufficient to firmly hold the aforementioned components of the bicycle in this position, while in the clamp of the folded position of a hinged fork of the rear wheel, one permanent magnet is located directly on this fork from its front side, and the second permanent magnet is located on the front fork ECA with the back of her hand, at the point of close contact; in the latch of the folded position of the hinged part of the steering column, one permanent magnet is located directly on this part from its front side, and the second permanent magnet is located on the front wheel fork also from its front side in the place of their close contact; in the clamp of the folded position of the upper frame link, one permanent magnet is located directly on this link, and the second permanent magnet is located on the lower frame link in the place of their close contact.

Based on the above data and a comparison of the claimed object with an analogue and prototype, it can be seen that the proposed technical solutions meet the criterion of inventive step and are new, and their industrial applicability is confirmed by the following detailed description of the design and operation of the proposed folding bike.

In FIG. 1 shows a General view of the proposed folding bike when it is deployed; in FIG. 2 is the same, view A in FIG. one; in FIG. 3 is a general view of the proposed folding bike with the folded folding part of the steering column rack; in FIG. 4 is the same, view B in FIG. 3; in FIG. 5 is a general view of the proposed folding bike with the folded hinged portion of the steering column strut, as well as a folded fork with a front wheel, upper and lower folded frame links; in FIG. 6, also, view B in FIG. 5; in FIG. 7 is a general view of the proposed folding bike with the folding hinged portion of the steering column strut, as well as the folded fork with the front wheel, the upper and lower frame links folded, the folding fork with the rear wheel folded vertically by the pedals; in FIG. 8 is the same, view G in FIG. 7; in FIG. 9 is the location of the axis of the hinge assembly of the hinged part of the steering column strut at an acute angle α to the vertical plane P along the longitudinal axis of the bicycle when it is deployed, section DD in FIG. one; in FIG. 10 - lock of the working position of the hinged part of the steering column rack, section EE in FIG. nine; in FIG. 11 - the location of the hinge nodes of the upper and lower frame links, as well as the hinged fork of the rear wheel, the limiter deployed position of the upper and lower frame links, the latch and the limiter of the deployed position of the hinged fork of the rear wheel; in FIG. 12 is the location of the axis of the hinge assembly of the folding fork of the rear wheel at an angle γ to the vertical plane P along the longitudinal axis of the bicycle when it is deployed, view G in FIG. eleven; in FIG. 13 - the location of the axes of the hinge assemblies of the upper and lower frame links on the lower part of the steering column strut at an acute angle β to the vertical plane P along the longitudinal axis of the bicycle in its deployed position, section Z-3 in FIG. eleven; in FIG. 14 - the location of the axes of the hinge nodes of the upper and lower frame links on the lower part of the seatpost also at an acute angle β to the vertical plane P along the longitudinal axis of the bicycle when it is deployed

- 3 019942 in that position, section KK in FIG. eleven; in FIG. 15 - limiter of the expanded position of the frame links, section FJ in FIG. nine; in FIG. 16 - structural embodiment and location of the latch and the limiter of the deployed position of the rear wheel hitch fork, pull-out I in FIG. eleven; in FIG. 17 is the same, view A in FIG. sixteen.

The proposed folding bicycle contains a saddle 1, resting on a sliding part 2 of a telescopic seatpost 3, provided with a latch 4 for the height of the saddle 1 and connected below by means of a hinge assembly 5 with a hinged fork 6 of the rear wheel 7, kinematically connected to the foot drive 8, on the crank of which on the outside there are folding pedals 10, as well as a folding fork 6 equipped with a latch 11 of the deployed and a latch 12 of folded positions; steering wheel 13, based on the sliding part 14 of the telescopic steering column strut 15, rigidly connected below with a fork 16 of the front wheel 17 and provided with a lock 18 of the height of the steering wheel 13, a hinge assembly 19 and a latch 20 of the deployed position of the hinged part 21 of the telescopic steering column 15; the upper 22 and lower 23 frame links, the ends of which are mounted on the axes 24, 25, 26, 27 of the hinge assemblies 28, 29, 30, 31, located on the lower part of the telescopic seatpost 3 and the lower part of the telescopic steering column 15, as well as equipped with a stop 32 of their expanded position (see Fig. 1, 2).

Moreover, the axis 33 of the hinge assembly 19 of the hinged part 21 of the steering column strut 15 is not located under a straight (90 °), but with an acute angle α to the vertical plane P along the longitudinal axis of the bicycle when it is deployed, sufficient to ensure that the hinged part 21 is rotated from top to bottom clockwise with the simultaneous synchronous rotation of the steering wheel by 90 ° until it is placed below parallel to the front wheel 17 and the automatic interaction of the additionally inserted lock 34 of its folded position is created, which creates the conditions for maximum proximity of the hinged part 21 of the steering column rack 15 to the fork 16 of the front wheel 17, and the steering wheel 13 to the front wheel 17, which helps to reduce the overall dimensions of the height and width of the bicycle when it is folding, and also creates the possibility of guaranteed reliable fixation of these parts fixing of these parts is carried out without the use of manual operations, which reduces the complexity, simplifies maintenance conditions and speeds up the folding process of a bicycle (see FIG. 3, 4, 9, 10).

The limiter 32 of the expanded position of the frame links 22, 23 is placed on one of them, and the axles 24, 25, 26, 27 of the hinge assemblies 28, 29, 30, 31 on the lower parts of the seatpost 3 and the steering column 15 racks for the upper 22 and lower 23 frame links are located parallel to each other and not at a straight (90 °), but with an acute angle β to the vertical plane P along the longitudinal axis of the bicycle when it is deployed, sufficient to ensure that the seat post 3 is rotated from top to bottom counterclockwise until it is placed on the back of the bicycle and contact with the top link frame 22, as well as simultaneous simultaneous rotation in the same direction from bottom to top of the fork 16 of the front wheel 17 and the hinged portion 21 of the steering column strut 15 previously mounted on it with the steering wheel 13 until the front wheel 17 is placed close to the deflection 35 for the lower frame link 23 from its front side and at the same time synchronous rapprochement of the upper 22 with the lower 23 frame links until they close tightly and automatically interact with the additionally introduced latch 36 of their folded position, due to which conditions are created for maximally approaching the seat post 3 to the upper frame link 22 on the back of the bicycle, the steering column strut 15 to the lower frame link 23 on the front side of the bicycle, and the upper frame link 22 to the lower frame link 23, which contributes to an additional reduction in overall dimensions in height and the width of the bicycle when it is being folded, and it also creates the possibility of guaranteed reliable fixation of these parts, moreover, the fixing of these parts is carried out similarly without using th manual operation, which further reduces the complexity, simplify service conditions and speeds up the process of folding a bicycle (see. FIG. 5, 6, 11, 13, 14).

Such a constructive implementation of the bicycle makes it possible to get rid of the manual impact on the latch 4 of the height of the saddle 1 at each folding and deployment, which significantly reduces the complexity, facilitates and improves service conditions, accelerates the process of re-arranging the bicycle.

The foot drive 8, as well as the deployed latch 11 and the folded latch 12 of the hinged fork 6 of the rear wheel 7 are located directly on this fork, and the hinge assembly 5 of this fork is located on the lower frame link 23, and the axis 37 of this hinged assembly is not directly ( 90 °), and with an acute angle γ to the vertical plane P along the longitudinal axis of the bicycle when it is deployed, it is sufficient to ensure that the hinge fork 6 of the rear wheel 7 is rotated from right to left clockwise until it is placed between the rear of the frame the links of the bicycle and the previously folded seat post 3 with the saddle 1, as well as tight contact of the hinged fork 6 of the rear wheel 7 with the previously folded fork 16 of the front wheel 17 and automatic interaction with the latch 12 of their folded position, due to which, firstly, the conditions are created for significantly simplify the design and reduce the cost of manufacturing a bicycle, significantly reducing

- 4 019942 shenii its metal consumption and total weight, facilitate carrying in the folded position; secondly, conditions are created for combining and maximally approximating the hinged fork 6 of the rear wheel 7 from the back of the frame links 22, 23 to the previously folded fork 16 with the front wheel 17 from the front of the same links, which contributes to a significant reduction in overall dimensions in height , the width and length of the bicycle when it is being folded, and it also creates the possibility of guaranteed reliable fixation of these parts, moreover, the fixation of these parts is carried out without the use of manual operations, which means tion reduces the complexity, simplify service conditions and accelerates the process of folding a bicycle (see. FIGS. 7, 8, 12).

This proposed implementation and the location of the foot drive 8 made it possible to get rid of the intermediate gear-chain transmission, which significantly reduces the total resistance and the applied force in its kinematic system, greatly simplifies the design, reduces metal consumption and weight, reduces the cost of manufacturing a bicycle, increases its performance in deployed position and makes carrying easy when folded.

In addition, the proposed location of the hinge assembly 5 of the hinged fork 6 of the rear wheel 7 on the lower frame link 23 made it possible to significantly increase the turning angle and expand the possibilities of its spatial arrangement, to ensure its contact with the folded fork 6 of the front wheel 7.

The hinge assembly 19 of the hinged part 21 of the steering column strut 15 is made in the form of an upper base 38 of this hinged part and a lower base 39 of the lower part of this strut connected by an axis 33, and the latch 20 of the expanded position of the hinged part 21 contains a cam 40 with a handle 41, an axis 42 and a return spring 43, placed between the uprights 44, 45, placed on the upper base 38, and on the lower base 39, a protrusion 46 is made, interacting with a spring-loaded deviating figured cam 40, and a depression 47 is made with the possibility of automatic stable size The placement of this cam in it when the upper 38 and lower 39 bases are tightly closed in the unfolded position of the bicycle, which guarantees a reduction in labor intensity, improved service conditions and an acceleration of the process of returning the bicycle to the unfolded position, increasing its reliability in this position (see Fig. 10)

This embodiment and location of the latch 20 made it possible to get rid of the second sliding part in the seat post 3, which greatly simplifies the design, reduces dimensions, metal consumption and weight, reduces the cost of manufacturing a bicycle, increases its performance in the deployed position and facilitates carrying in the folded position.

The limiter 32 of the expanded position of the frame links 22, 23 is made in the form of a horizontal plate fixed to the tip 48, for example, of the upper frame link 22, with the possibility of tight interaction of its end part 49 with the fixed end part 50 of the hinge assembly 28 on the lower part of the telescopic steering column 15 when the indicated deployed position, thereby simplifying the design of this limiter, reducing its dimensions, metal consumption and weight, which contributes to the cheaper manufacture of a bicycle (see Fig. 13).

The latch 11 of the deployed position of the hinged fork 6 of the rear wheel 7 includes a limiter 51 of the indicated position located directly on this fork and eyelets 52, 53 with a figured cam 54 located between them with a handle 55, an axis 56, a return spring 57 and a stopper 58 of its working position, and also mounted on the lower part of the telescopic seatpost 3 i-shaped bracket 59 with a transverse finger 60 and the possibility of interaction of this finger with a deflecting spring-loaded figured cam 54, placing this finger in the the locking sockets 61, 62 which are attached to the eyes 52, 53 and automatically hold them securely with the help of a cam 54 when the bicycle is fully deployed and the limiter 51 of the deployed position of the folding fork 5 is in close contact with the lower frame link 23, which simplifies the design of this latch, its dimensions, metal consumption and weight are reduced, which reduces the cost of manufacturing a bicycle, and also reduces labor intensity, improves service conditions and accelerates the process of returning a bicycle to an expanded floor voltage, increases its efficiency in this position (FIG. 16, 17).

Each of the latches 12, 34, 36 of the folded position, respectively, of the hinged fork 6 of the rear wheel 7, the hinged portion 21 of the steering column strut 15, as well as the upper frame link 22 are made in the form of two mutually attractable permanent magnets with an effort sufficient to firmly hold the aforementioned bicycle components in the specified position, while in the latch 12 of the folded position of the hinged fork 6 of the rear wheel 7, one permanent magnet 12.1 is located directly on this fork from its front side, and the second permanent magnet 12.2 is on a fork 16 of the front wheel 17 from its rear side in the place of their close contact; in the latch 34 of the folded position of the hinged portion 21 of the steering column strut 15, one permanent magnet 34.1 is located directly on this part from its front side, and the second permanent magnet 34.2 is located on the fork 16 of the front wheel 17 also from its front side in the place of their close contact; in the latch 36 of the folded position of the upper frame link 22, one permanent magnet 36.1 is located directly on this link, and the second permanent magnet 36.2 is located on the lower frame link 23 in the place of their tight fit

- 5 019942 contacting, due to which conditions are created to simplify the design of these clamps, reduce their dimensions, metal consumption and weight, which significantly reduces the cost of manufacturing a bicycle, and also significantly reduces labor costs, improves service conditions and speeds up the process of deployment and folding of a bicycle (see Fig. 1-8).

Translation of the proposed bike from deployed to folded is as follows.

When acting on the handle 41 of the latch 20 and overcoming the force of the return spring 43, the figured deviating cam 40 is withdrawn from the cavity 47 and the hinged portion 21 of the steering column strut 15 is released, and they also begin to turn it clockwise from the axis 33 of the hinge assembly 19, and the effect on the handle 41 is then stopped, and the figured cam 40 under the action of the spring 43 returns to its original working position, but since the axis 33 of the hinge assembly 19 is at an acute angle a to the vertical plane P along the longitudinal axis peda when it is deployed, the hinged part 21 of the steering column strut 15 after turning is firmly in contact with the fork 16 of the front wheel 17 from its front side, and the permanent magnet 34.1 on the hinged part 21 of the steering column strut 13 automatically interacts with the permanent magnet 34.2 on the fork 16 of the front wheel 17, the pulling force of which fully ensures a strong hold of the clamp 34 of these parts of the bicycle.

At the same time, with the indicated movement of the hinged part 21 of the steering column strut 15, the rudder 13 also synchronously rotates 90 ° and is positioned at the bottom parallel to the front wheel 17 (see Figs. 1, 2, 3, 4, 9, 10).

Thanks to the proposed design and arrangement of the hinge assembly 19, the hinge portion 21 of the steering column strut 15 is approached as close as possible to the front wheel fork 16 and the steering wheel 13 to the front wheel 17 from its front side, which guarantees a reduction in the dimensions of the bicycle when folded in height and width, and also guarantees a strong retention of these parts in this position, reducing labor intensity, improving service conditions and accelerating folding of the bicycle.

Then acting on the handle 55 of the latch 11 and overcoming the force of the return spring 57, the figured deviating cam 60 is removed from interaction with the transverse finger 54 of the bracket 49 on the bottom of the seat post 3 and release this post, and also begin to rotate it and the frame links 22, 23 relative the axes 24, 25, 26, 27 of the hinge assemblies 28, 29, 30, 31 from top to bottom counterclockwise, and the action on the handle 55 is then stopped and the figured cam 60 under the action of the spring 57 returns to its original working position, but since the axis 24, 25, 26, 27 of the hinge assemblies 28, 29, 30, 31 on the frame links 22, 23 are located parallel to each other and at an acute angle β to the vertical plane P along the longitudinal axis of the bicycle when it is deployed, then after completing the turn, the seat post 3 is in contact with the upper link 22 and is located horizontally from the back of the bicycle, and the wheel 17 is simultaneously synchronously placed closely in the deflection 35 made for it on the lower frame link 23 from its front side, the upper frame link 22 is tightly closed with the lower frame link 23, and These magnets 36.1, 36.2 on these links automatically interact with each other, the pulling force of which fully ensures the strong hold of the indicated parts of the bicycle with the clamp 36 (see FIG. 5, 6, 13, 14, 16, 17).

Thanks to the proposed design and arrangement of the hinge assemblies 28, 29, 30, 31, the horizontal position of the seat post 3 on the rear side of the bicycle and its maximum possible approach to the upper frame link 22, the horizontal location of the fork 16 of the front wheel 17 on the front side of the bicycle and the maximum possible approach of the front wheel 17 to the lower frame link 23, as well as the maximum possible approximation of the upper frame link 22 to the lower frame link 23, which guarantees a significant reduction in the dimensions of the bicycle in the folded position in height and width, and also guarantees a strong retention of these parts in this position, a significant reduction in labor intensity, improved service conditions and accelerated folding of the bicycle.

After that, they act on the hinged fork 6 of the rear wheel 7 and begin to turn it about the axis 37 of the hinge assembly 5 on the lower frame link 23 from right to left clockwise and break the contact of the stop 51 with the lower frame link 23, but since the axis 37 of the hinge unit 5 is located under an acute angle γ to the vertical plane P along the longitudinal axis of the bicycle when it is deployed, then after completion of the turn, the fork 6 is horizontally between the back of the frame links 22, 23 of the bicycle and the previously folded seat 3 with saddle 1 and is in close contact with the previously folded fork 16 of the front wheel 17, and the permanent magnets 12.1, 12.2 on these forks interact with each other, the pulling force of which fully ensures a strong hold of the specified parts of the bicycle with a retainer 12 (see. Fig. 7, 8, 12).

Thanks to the proposed design and location of the hinge assembly 5 dos

- 6 019942 the horizontal arrangement of the hinged fork 6 of the rear wheel 7 on the rear side of the bicycle and the closest possible approach to the previously folded fork 16 of the front wheel 17 are guaranteed, which guarantees an even greater reduction in the dimensions of the bicycle in the folded position in height, width and length, and also guarantees a durable keeping these parts in this position, further reducing labor intensity, improving service conditions and accelerating folding of the bike.

And finally, they act on the pedals 10 and translate them into a vertical position, which further reduces the overall dimensions of the bicycle in width when it is finally folded.

The return of the bicycle from the folded to the unfolded position is carried out in the reverse order.

First, overcoming the force of attraction of the permanent magnets 12.1, 12.2 in the latch 12, turn the fork 6 from the rear wheel 7 from left to right counterclockwise until the limiter 51 on this fork contacts the lower frame link 23, while the aforementioned magnets are opened automatically without manual action them, which reduces the complexity, improves service conditions and accelerates the deployment of the bike.

Then, overcoming the force of attraction of the permanent magnets 36.1, 36.2 in the latch 36, turn the seatpost 3 with the seat 1 from bottom to top clockwise while simultaneously lifting the upper frame link 22 and moving away from the lower frame link 23, as well as simultaneously turning from the bottom up clockwise forks 16 with the front wheel 17 and the hinged portion 21 of the steering column strut 15 mounted on it until the end part 49 of the limiter 32 of the extended position of the frame links 22, 23 comes into close contact with the ends the fixed part 50 of the hinge assembly 29, as well as the engagement of the finger 60 of the I-shaped bracket 59 on the lower part of the seatpost 3 with the cam 54 of the retainer 11, as a result of which this cam, overcoming the force of the return spring 57, rotates on the axis 56, deviates and passes the finger 60, which is then located in the locking sockets 61, 62 on the eyes 52, 53, after which the spring 57 automatically without manual action returns the cam 54 to the working position and firmly fixes the finger 60 in the said sockets, which guarantees up to tatochnuyu rigidity and reliability of the bike work in its extended position, and reduces the complexity and improves the conditions of service and speeds up the process of deploying a bicycle.

After that, overcoming the force of the permanent magnets 34.1, 34.2 in the latch 34, turn the hinged part 21 of the steering column strut 15 from the bottom up counterclockwise while simultaneously turning 90 ° of the handlebar 13 until it is located at the top perpendicular to the longitudinal axis of the bicycle, and also before engaging protrusions 46 on the lower base 39 of the lower part of the steering column strut 15 with the cam 40 of the retainer 20 on the upper base 38 on the hinged part 21, as a result of which this cam, overcoming the force of the return spring 43, is rotated by axis 42, deviates, passes the protrusion 46, then is located in the cavity 47 on the lower base 39 and automatically without manual action returns to the working position when the upper 38 and lower 39 bases are firmly in contact, firmly fixing them in this position, which additionally guarantees rigidity of the structure and the reliability of the bicycle in its deployed position, and also further reduces the complexity, improves service conditions and accelerates the deployment process of the bicycle.

Complete the process of transferring the bike from folded to deployed position by returning the pedals 10 on the crank 9 of the foot drive 8 to the horizontal operating position.

Thus, based on the foregoing, it can be seen that the proposed folding bike compares favorably with known similar bicycles and has the following advantages:

firstly, the proposed placement of the foot drive together with the rear wheel on a separate fork made it possible to get rid of the intermediate gear-chain transmission in it, which significantly reduced the resistance and the applied force in the kinematic system of this drive, greatly simplified the design and cheapened the manufacture of the bicycle, reduced dimensions , metal consumption and total weight, its efficiency in the expanded position has improved and the complexity in the folded position has decreased;

secondly, the proposed constructive implementation of the latch for the deployed position of the hinged fork of the rear wheel made it possible to significantly simplify its design, reduce the dimensions, metal consumption and weight of the bicycle, reduce the cost of its manufacture, and also automatically, without manual influence, carry out its functions, which reduces the complexity , facilitates and improves service conditions, accelerates the process of deployment of a bicycle;

thirdly, the proposed constructive implementation of the latch for the deployed position of the rear wheel hinged fork, in addition, made it possible to also get rid of the use of the second sliding part in the seat post, which further simplifies the design, reduces the metal consumption and weight of the bicycle, makes its manufacture cheaper and easier to carry when folded ;

fourthly, the proposed constructive implementation of the latch for the deployed position of the hinged part of the steering column rack made it possible automatically, without manual influence on it,

- 7 019942 to carry out their functions, which further reduces the complexity, facilitates and improves the conditions of service, accelerates the process of deployment of the bike;

fifthly, the proposed use of additionally the latches of the folded position of the hinged part of the steering column rack with the front wheel fork of the upper and lower frame links, as well as the hinged fork of the rear wheel with the front wheel fork, made it possible to hold these parts more firmly in the folded position of the bicycle and improve its conditions carrying;

sixthly, the proposed constructive implementation of each clamp of the folded position of the bicycle parts in the form of two mutually attracting permanent magnets and their location in the places of close contact of the corresponding parts made it possible to ensure their automatic, without manual intervention, strong interaction, which significantly reduces the complexity, facilitates and improves conditions maintenance, accelerates the process of folding and deployment of the bike;

seventh, the proposed implementation of the limiters for the deployed position of the frame links and the hinged fork of the rear wheel made it possible to simplify their design, reduce the dimensions, metal consumption and weight of the bicycle, reduce the cost of its manufacture, and facilitate carrying in the folded position;

eighth, the proposed placement of the hinge assembly of the hinged fork of the rear wheel on the lower frame link made it possible to increase the turning angle of this fork, to expand the possibility of its spatial location, taking into account the reduction in the overall dimensions of the bicycle when folded;

ninth, the proposed use of the lower frame link with a deflection on its front side for placing the front wheel in the bicycle in the folded position makes it possible to ensure tight contact between the rear wheel forks and the front wheel forks, taking into account the additional reduction of the dimensions of the bicycle;

tenth, the proposed location of the hinge assembly of the hinged part of the steering column strut at an acute angle α to the vertical plane P along the longitudinal axis of the bicycle when it is deployed, made it possible to fold this hinged part and fit it tightly on the front wheel fork while simultaneously steering the steering wheel 90 ° and its parallel tight arrangement relative to the front wheel, which reduces even more dimensions of the bike in height and width of the bike when folded;

eleventh, the proposed parallel arrangement between the axes of the hinge assemblies of the upper and lower frame links on the lower parts of the seatpost and steering column racks, as well as at an acute angle β to the vertical plane P along the longitudinal axis of the bicycle when it is deployed, made it possible to simultaneously fold the seatpost simultaneously stand and position it on the back of the bicycle close to the upper frame link, as well as simultaneously fold the front wheel fork together with the hinged part attached to it the steering column stand and position it on the back of the bicycle, position the front wheel closely in the deflection for the lower frame link, bring it closer to the upper and lower frame link, which significantly reduces the height and width of the bicycle when it is folded, accelerates the folding process and deployment of the bike;

twelfth, the proposed design of the bike with the possibility of turning down and placing the seat post on the back of the bike made it possible to get rid of the manual impact on the seat height retainer at each rearrangement, which is reduced in laboriousness, facilitates maintenance conditions and speeds up the folding and deployment process a bicycle;

thirteenth, the proposed arrangement of the axis of the hinge assembly of the hinged fork of the rear wheel at an acute angle γ to the vertical plane P along the longitudinal axis of the bicycle when it is deployed, made it possible to fold this fork and position it on the back of the bicycle close to the folded front wheel fork, which is essential reduces the dimensions of the bike in length and width when it is folded;

Fourteenth, the proposed use of folding pedals in the foot drive makes it possible to further reduce the overall dimensions of the bicycle in width when finally folded.

The proposed folding bike is structurally simple, less in weight and cheaper to manufacture, reliable in deployed position and more compact when folded, so it will be in great demand.

Information sources:

1. Eurasian patent EP 1212235 A1, MKI B 62K 15/00, 07/30/1999.

2. French patent EB 2818611 A1, MKI B 62K 15/00, 12/27/2000.

Claims (5)

CLAIM 1. A folding bicycle containing a saddle supported on the telescopic part of the seatpost, equipped with a lock for the seat height and tied down by means of a hinge assembly with a rear wheel folding fork, kinematically connected to a foot drive, on the outer crank of the outer sides there are folding pedals, and also equipped with a locking device deployed and a locking device of the folded position folding fork; a steering wheel supported by the telescopic strut-out strut, rigidly connected at the bottom with its fixed part to the front wheel fork and fitted with a hinge-height lock, a hinge and a swivel hinge of the hinged part of the telescopic strut; the upper and lower frame links, the ends of which are mounted on the axes of the hinge assemblies located on the lower fixed part of the telescopic seat and lower part of the telescopic underwheel, are also equipped with a limiter of their unfolded position, characterized in that the axis of the hinge of the hinged part of the strut is located under an acute angle α to the vertical plane P passing through the longitudinal axis of the bicycle when it is deployed sufficiently enough to provide for turning the folding part of the steering column Toyko downward clockwise with simultaneous synchronous rotation servo 90 ° before placing it parallel to the bottom of the front wheel, and said tight contact with the hinged part of the front wheel fork and fixing them by means of the latch hinge fork folded position; the limiter of the unfolded position of the frame links is located on one of them, and the axes of the hinged knots on the fixed parts of the seatpost and the strut for the upper and lower frame links are parallel and at an acute angle β to the vertical plane P passing through the longitudinal axis of the bicycle when it is turned position sufficient to ensure a top-down turn counterclockwise seatpost before placing it on the back side of the bike and contact with the upper frame link, as well as at the same time synchronously turning in the same direction from the bottom upwards the front wheel fork and the hinged part of the steering column rack previously attached to it with the steering wheel until the front wheel is placed tightly in the deflection made for it on the lower frame link on its front side and at the same time synchronous approach of the upper link to the lower one frame links to their tight closure and fixation with the help of the latch folded position of these links; the foot actuator, as well as the retainer of the unfolded and the retainer of the folded positions of the rear wheel folding fork are located directly on this fork, and the rear wheel folding fork hinge assembly is located on the lower frame link, the axis of this node is located at an acute angle γ to the vertical plane P passing through the longitudinal axis of the bicycle when it is turned sufficiently enough to allow the rear wheel folding fork to rotate clockwise before placing it between the back side of the frame links of the bicycle and the previously folded seatpost with the saddle, as well as the tight contact of the rear fork folding with the previously folded front wheel fork and their fixation with the help of the folded position lock. 2. Folding bike according to claim 1, characterized in that the articulated hinge of the hinged part of the steering column stand is made up of the upper base of the hinged part and the lower base of the fixed part of this stand connected by the axis, and the latch of the unfolded position of the hinged part contains a cam with handle, axle and returnable a spring placed between racks located on the upper base, and on the lower base there is a protrusion interacting with a spring-loaded deflecting figured cam, and a depression with the possibility of automatic stability Vågå accommodating a cam with a tight closing of the upper and lower bases of the bicycle in the unfolded position. 3. Folding bike according to claim 1, characterized in that the limiter of the unfolded position of the frame links is made in the form of a horizontal plate fixed to the tip, for example, the upper frame link with the possibility of tight engagement with its end part with the fixed end part of the hinge assembly on the lower part of the telescopic steering column stand in the extended position of the bike. 4. Folding bike according to claim 1, characterized in that the retainer of the unfolded position of the rear wheel folding plug contains a limiter of the specified position located directly on this fork and eyelets with a figured cam placed between them with a handle, an axle, a return spring and a stopper of its operating position, and also a ϋ-shaped bracket fixed on the bottom of the telescopic seatpost with a transverse finger and the possibility of the interaction of this finger with a deviating spring-loaded figured cam, once escheniem formed in it for retaining the lugs in nests and automatic sustained retention therein by a cam with a fully unfolded position of the bicycle and tight contact position limiter unwrapped hinged fork with the lower frame element. 5. Folding bike according to claim 1, characterized in that each of the latches of the folded position, respectively, folding rear wheel fork, folding part of the steering column rack, as well as the upper frame link, is made in the form of two reciprocating permanent magnets with a force sufficient to firmly hold the aforementioned components of the bicycle in the position indicated - 9 019942 NII, while in the stopper of the folded position of the folding fork of the rear wheel one permanent magnet is located directly on this fork on its front side, and the second permanent magnet is on the fork of the front wheel on its back side at the place of their tight contact; in the stopper of the folded position of the folding part of the steering column stand one permanent magnet is located directly on the folding part on its front side, and the second permanent magnet is on the front wheel fork also on the front side in the place of their tight contact; In the stopper of the folded position of the upper frame link, one magnet is located directly on this link, and the second permanent magnet is located on the lower frame link in the place of their tight contact.