ES1148910U - Biela para bicicletas (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Biela for bicycles, characterized in that it presents longitudinally a recess. (Machine-translation by Google Translate, not legally binding)

Description

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Crankset OBJECT OF THE INVENTION

Connecting rod for bicycles.

FIELD OF THE INVENTION:

This connecting rod is intended primarily for sports bicycles and generally for competition in different mountain and obstacle modes, such as trial or mountain bike.

BACKGROUND OF THE INVENTION:

Generally the bicycles in general, and among them the competition ones, have connecting rods that according to the manufacturer can present different designs and different structures but essentially have a straight constitution and are arranged from the coupling end to the bicycle chassis to the coupling end to the pedal.

In competitions where obstacles must be overcome, the cranks are subjected to collisions with protrusions of said obstacles that can cause the imbalance of the bicycle with loss of time for the competing cyclist, and can even cause its fall with the corresponding risks.

SUMMARY OF THE INVENTION:

The object of this invention is a connecting rod with which the cyclist in the competition or in other uses can significantly reduce the impact of the connecting rod with the obstacles and therefore avoid problems before them and reduce the chances of falls.

It is a second object of this invention two protectors, which each have coupled in one of the cranks of a trial bike, mountain bike or similar.

For this, the connecting rod of the present invention has a longitudinally bent inlet or bent, so that two sections are formed that allow one of said sections to collide with the projections of an obstacle, and thus by avoiding the collision, can save many of the obstacles that can generate the indicated problem.

Complementarily, the connecting rod presents in one of said sections, or at least part of it, a toothed which, in addition, facilitates the grip of the bicycle when establishing the connecting rod against an obstacle, such as a rock or a trunk, facilitating to save it without going back and thus continue the race, which gives the user a great advantage.

With these characteristics, the connecting rod has a general angular constitution.

Each crank of the bicycle has a means of coupling to a protector, which are located in the own connection to the bicycle chassis. Said connecting means of the connecting rod are advantageously configured with a geometry such that in combination with the corresponding coupling geometry of the protector they do not allow the relative rotation of one piece with respect to the other.

As a possible embodiment of said connecting rod coupling means provided in the connection to the bicycle chassis, they are formed by four angular projections arranged protruding from the perimeter surface of the connection body, so that said resulting geometry corresponds perfectly with straight sections and circular sectors of the protector.

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In relation to the two protectors, right side and left side, they have the function of on the one hand protecting the bicycle chain against the impact of eventual stones or other obstacles that could damage or break it, with the consequent fall or trip of the bicycle user; and also has the additional function of stabilizing the bicycle laterally.

Both protectors have a configuration and dimensions such that when mounted on the respective cranks, they protrude below the chain, which guarantees that when impacting any stone or other object on the bicycle it would impact on said protectors, which would avoid or minimize the impact Direct on the chain.

Specifically, the protector that is disposed on the side of the chain of the bicycle fulfills the function described above, while the protector that is disposed on the other side also serves to provide greater stability to the bicycle.

Said protectors are arranged coupled to the protector by their coupling connection to the bicycle chassis, and are fixed thereto by means of fixing means, such as nut-threaded means or any other equivalent fixing element.

These and other characteristics will be better derived from the detailed description that follows, to facilitate which is accompanied by five sheets of drawings in which a practical case of embodiment has been represented that is cited only by way of non-limiting example of the scope of the present invention

DESCRIPTION OF THE DRAWINGS:

Figure 1 illustrates in perspective the connecting rod that is mounted on the right side of the bicycle object of the invention seen from one of its sides,

Figure 2 illustrates in perspective the connecting rod that is mounted on the right side object of the invention seen from the other side,

Figure 3a shows this right side connecting rod seen in rear elevation,

Figure 3b shows the left side connecting rod seen in rear elevation,

Figure 4 shows this right side connecting rod seen in front elevation,

Figure 5a represents the right side connecting rod seen in plan,

Figure 5b shows the left side connecting rod seen in plan,

Figure 6 represents the right side shield seen in front elevation,

Figure 7 represents the right side shield seen in side elevation,

Figure 8 represents the left side shield seen in front elevation,

Figure 9 depicts the left side shield seen in side elevation, and

Figure 10 represents a perspective view of the two connecting rods mounted on a possible chassis of a bicycle and with the protectors also mounted.

DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT OF THE INVENTION:

According to the accompanying drawings, the connecting rod (Bd, Bi) object of the present invention has an elongated and thin body (1), at whose ends the corresponding connections are arranged: connection (4a, 4b) for its coupling to the bicycle chassis and the reception of the cogwheel for the chain of transmission to the wheel, and at the opposite end the connection (5) for the pedal.

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Four. Five

The particularity of said connecting rod (Bd, Bi) is that it has an angular recess or bent (2) longitudinally, the general constitution of the connecting rod being angular.

Said incoming or angular bending (2) can be produced in the intermediate part of the length of the connecting rod (Bd, Bi), or in a slightly asymmetric manner. Said bending (2) arranged displaced with respect to the center of the part has been found to grant advantages for the bicycle user.

Optionally, the connecting rod (Bd, Bi) can present in the plane corresponding to its lower half a toothing (3) to be able to grab possible branches or trunks and keep the bicycle held in one of the teeth that make up the teeth (3 ). Said teeth (3) may comprise a plurality of teeth of the same size or comprise teeth of different geometry, without altering the essentiality of the present invention.

With the reference (6) there are indicated holes that have been provided in the body of the connecting rod (Bd, Bi) to lighten the weight of the connecting rod, and with the reference (7) the nerves are indicated to reinforce it. In all the components of a trial bike or similar, weight is an extremely critical factor, since any decrease in weight - however small - may prove to be very advantageous for the user.

As a reference it is indicated that the angular or bent inlet (2) of the connecting rod body (Bd, Bi) can cover a bending angle formed between the longitudinal axis of the first section "e" and the longitudinal axis of the second section "d ”From 1 to 90 degrees, its obtuse angularity being advantageous. According to a preferred embodiment, said bending angle a is between 20 and 70 degrees, see Figure 4.

Said connecting rod (Bd, Bi) laterally presents a body (1) of stepped configuration, formed by a section closer to the pedal (t1) in horizontal arrangement, which extends in an intermediate section inclined (t2) upwards, which ends in another section closer to the chassis (t3) in horizontal arrangement and therefore being at a higher height (distance f between the two planes), see figures 5a and 5b.

The thickness of said connecting rod (Bd, Bi) is substantially constant throughout its length, and at both ends it can have a non-straight profile, see also figures 5a and 5b. Preferably, said non-straight profile has an angularity forming angles (3, and between 50 and 85 degrees.

Regarding the connecting rod connections (Bd, Bi) for coupling to the bicycle chassis and receiving the gearwheel for the chain of transmission to the wheel (4), and the connection for the pedal (5) are connections conventional. In the case of the connection for fixing the pedal (5) it is constituted by a substantially cylindrical through hole, although it can adopt other configurations without altering the essentiality of the present invention. In the case of the connection for coupling to the bicycle chassis (4a, 4b) it is constituted by a substantially cylindrical portion disposed on the body (1) of the connecting rod (Bd, Bi), said connection (4a, 4b being affected) ) by a substantially cylindrical through hole bore provided with a plurality of axial ribs (14) arranged along the entire perimeter surface of the borehole; although the connection (4a, 4b) may adopt other configurations without altering the essentiality of the present invention.

This connecting rod (Bd, Bi) may slightly change its configuration depending on whether

ride on the right side or left side of the chassis (C) of the bicycle. Specifically, the

modification of said connecting rod according to the mounting side (Bd, Bi) is based on the constitution of the connection to the chassis (4a, 4b). In one case, the right side rod (Bd) has a connection to the

chassis (4a) formed by a substantially cylindrical configuration body provided with a

threaded outer surface, see figure 5a; while in the other case, the left side connecting rod (Bi) has a connection to the chassis (4b) formed by a first inner cylindrical portion of

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threaded outer surface (4b ’) and a second outer cylindrical portion of unthreaded outer surface (4b”), see figure 5b.

With respect to the connecting means of the connecting rod (Bd, Bi) provided in the connection to the chassis (4a, 4b) of the bicycle, they are formed by angular projections (8) arranged protruding from the perimeter surface of the body of the connection to the chassis (4a, 4b), see figures 3a, 3b, 5a and 5b; so that the resulting geometry forming straight sections and circular sectors corresponds perfectly with the geometry of the straight sections (12) and the circular sectors of the hole (11) of the protector (Pd, Pi).

A preferred constitution of the right protector (Pd) and left protector (Pi) are shown in Figures 6 to 10, which are each arranged in each connecting rod (Bd, Bi) of the bicycle chassis (C).

Each protector (Pd, Pi) is constituted by a thin body equipped with a coupling hole (11) adapted for mounting on the corresponding connecting rod (Bd, Bi), and also has a section that extends inferiorly.

In order to avoid that each protector (Pd, Pi) could rotate with respect to the connection to the chassis (4a, 4b) of the connecting rod (Bd, Bi), both the connecting rod (Bd, Bi) and the protector (Pd, Pi ) have been provided with straight sections (12), which prevent this possible rotation, see figures 3, 5, 6 and 8.

Also optionally, the protectors (Pd, Pi) can incorporate in their lower section an edge (13) provided with a plurality of teeth (9), which can have different configurations, whose function is the same as that described above for the saw (3) of the connecting rod (Bd, Bi).

As shown in Figures 6 and 8, this tooth (9) can comprise teeth of non-regular size and configurations (for example of increasing or decreasing size as shown in Figures 6 to 8). As illustrated in these same figures, said lower section of the protector can have a lower part in an inclined arrangement of a substantially circular edge (13), with the mission of being able to better cover the bicycle chain.

Reference (10) indicates the holes or holes that have been provided in the body of the protectors (Pd, Pi) to lighten their weight.

As illustrated in Figure 10, the two connecting rods (Bd, Bi) are fixedly mounted on each side of the chassis (C) of a bicycle fixed to it (C) by means of the respective connections (4a, 4b), and the protectors ( Pd, Pi) can be easily mounted and removed from said respective connecting rods (Bd, Bi) fixed to the connecting rods (Bd, Bi) by the coupling means (8, 11, 12) and external fixing means such as a nut fixing (not shown in the attached figures).

The invention, within the essentiality, can be carried out in other embodiments that differ only in detail from that indicated by way of example, to which the protection sought will also be achieved.

It will be possible, therefore, to make this connecting rod and these bicycle protectors in any shape and size, with the most appropriate means and materials and with the most convenient accessories, the component elements being able to be replaced by other technically equivalent ones, since all of this is included within the spirit of the following claims.

Claims (15)

5 10 fifteen twenty 25 30 35 40 1. - Connecting rod for bicycles, characterized in that it has a recess longitudinally. 2. - Connecting rod for bicycles, according to claim 1, characterized in that at least part of said recess has a teeth. 3. - Connecting rod for bicycles, according to claim 1, characterized in that the inlet is angular. 4. - Connecting rod for bicycles, according to claim 1, characterized in that the entree is concave. 5. - Connecting rod for bicycles, according to claim 1, characterized in that the recess is asymmetrically arranged along its length. 6. - Connecting rod for bicycles, according to claim 1, characterized in that it has a longitudinally angular general constitution. 7. - Connecting rod for bicycles, according to claim 1, characterized in that it has a connection to the bicycle chassis formed by a body of substantially cylindrical configuration provided with a threaded cylindrical surface, and in the connection of providing a coupling means to a protector . 8. - Bicycle crank, according to claim 1, characterized in that it has a connection to the bicycle chassis formed by a first inner cylindrical portion provided with a threaded cylindrical outer surface and a second non-threaded outer cylindrical portion, and at the bottom of the connection provide for coupling means to a protector. 9. - Bicycle crank, according to claims 1, 7 or 8, characterized in that the connection to the bicycle chassis has coupling means formed by angular projections arranged protruding from the perimeter surface of the body of the connection to the chassis, whose The resulting geometry corresponds to circular sectors and straight sections of the connection to the chassis of a protector. 10. - Bicycle crank, according to any of the preceding claims, characterized in that it comprises a protector mounted on the coupling connection to the chassis of the connecting rod by means of coupling means without the possibility of relative rotation, and fixed to said connecting rod with means of fixation. 11. - Protector for trial, mountain bike or similar bicycles, characterized in that it is configured by a thin body with dimensions such that once mounted on a bicycle crank it protrudes below the bicycle chain, and comprising a coupling hole to said connecting rod which is arranged in the coupling connection to the connecting rod chassis. 12. - Protector for trial, mountain bike or similar bicycles, according to claim 11, characterized in that said coupling hole comprises respective circular sectors and straight sections, which correspond to the coupling geometry of the connection to the connecting rod chassis. . 13. - Protector for trial, mountain bike or similar bicycles, according to claim 11 or 12, characterized in that the body comprises a lower section arranged in an inclined arrangement and said lower section comprises a lower edge of substantially circular perimeter. 14. - Protector for trial, mountain bike or similar bicycles, according to claim 13, characterized in that it comprises a jagged edge. 15. - Protector for trial, mountain bike or similar bicycles, according to claim 14, characterized in that the teeth comprise teeth of non-regular size and configurations.