FR2699883A1 - Pedal for cycle. - Google Patents

Abstract

In compliance with article 49 on the regulation of the "bicycle", this CRANKSET, characterized by a LEVER ARM (7) WITH DOUBLE-WALL PROFILED SECTION, differs from the traditional crankset by the "CONCEPT" of its CRANK which comprises a DOUBLE-CURVE, whose positioning and the dimensional value of its spokes "FAR", in action, the "CENTER OF GRAVITATION. This crankset thus substitutes for the RADIAL FORCE (O2) a part of its energy which 'it inserts into the ATTRACTIVE FORCES OF THE MOVEMENT (6). Therefore, the kinetic energy of translation favors the "PEDALING" by a more rational use of the USEFUL TANGENTS included in the rotational forces, and this "STIMULUS" improves the PERFORMANCE because that materialized in all times of pedaling ... including in the "negative" zone of time-outs ... hence "SUPERIOR EFFICIENCY." This CRANKSET, according to the invention, is particularly intended to enhance the practice of bicycle in all the LEISURE CYCLING and COMPE variants TITION.

Description

The present invention relates to a "BICYCLE CRANKSET" which enhances the "BICYCLE PRACTICE" by a "PROCESS" OF IMPROVING the "PEDALING" DUE to a "SYSTEMATIC REMOVAL" from the "CENTER OF GRAVITA TION (16) compared to I "ROTATION AXIS - (O - (0t) - (CRANKSET AXIS) - FIG. 1.2.3
PEDALING implies, however, an ANALOGY OF MOVEMENT which is determined, during a revolution, in two distinct periods, namely
10 EFFICIENCY ZONE - FIG. 4
20 ZONE OF INEFFICIENCY - FIG. 5
The "efficiency zone becomes clear as soon as the POINT is crossed
DEATH-UP by the foot (2) i.e. when the thigh begins to exert pressure on the knee until the leg extends to the
POINT-DEATH-DOWN (3) from 2 to 3 - FIG. 4 -.

 The "ineffective zone is, on the contrary, at the birth of the POINT-MORT-BAS (4) until the end of the POINT-MORT-HAUT (5), ie, from 4 to 5 - FIG. 5-.

 It is important to emphasize that this last phase includes the "two" periods of "time-out" - (A and B) -.

 However, the action becomes clearer especially and above all in 1 "alternation" of the force applied by the knees.

 PEDALING is therefore an "ALTERNATIVE" movement which becomes "ROTARY" only by simple opposition of the feet because the rigidity of the lever arm (the crank) requires this reconversion.

 From this fact, "we can deduce that the" major "efficiency of the movement occurs in the" pressure exerted "zone, ie from 2 to 3 - FIG. 4 -.

 However, it is at the start of this one (at point 2) that the cyclist must overcome a resistance greater than all times of pedaling ....

 This criterion is established as a function of the approximation of the applied force (point 2) on the axis of the crankset (04) relative to point (V) therefore, by the "fictitious" shortening of the lever arm, in this case - keep the crank - FIG. 6-.

 It is therefore at the start of this "pressure" that the user must compensate for this additional resistance with an additional energy ...

whence a brutal contraction of the muscular and nervous system.

The "PRODUCT" according to the invention presented makes it possible to remedy this drawback for the following reasons
10 The CRANKSET increases the volume of the force applied by substituting for the RADIAL FORCE (yes) part of its energy which it inserts for the ATTRACTIVE FORCES OF THE MOJVEt'LENT (6) FIG. 1 based on a DOUBLE
CURVE (C and D -FIG.7) created for this purpose on its LEVER ARM (7).

 20 THE LEVER ARM (7) of this CRANKSET having the CENTER OF GRAVITY (they) further from its SUPPORT POINT (o!) Than that of a traditional crankset (1), when it is effective, the " MOMENT "of this weight in relation to the axis is necessarily" SUPERIOR ".

 i Taking into account the "INERTIA" of the two pedals, even at "EQUAL MASS", this one has a "MOMENT OF INERTIA" greater than that of a conventional crankset: therefore, it stores at high speed a greater energy than it is able to restore at lower speed.

 40 CINETIC TRANSLATION ENERGY thus promotes movement by a more rational use of "USEFUL TANGENTES" included in the rotational forces, and this "STIMULUS" improves performance because it is embodied in all times of pedaling ... including in the "negative" time-out zone ... hence "SUPERIOR EFFICIENCY".

This improvement is precisely due to the shape of the ARM OF
LEVER (7) which has a "DOUBLE-CURVE" (C and D) - FIG. 7, including the positioning and the dimensional value of its "ELOIGNE." in action, the "CENTER OF GRAVITATION" pedaling.

From then on, the "ACQUIRED GAIN" (however small it may be) cannot be compensated for by the mechanical effects of the "COUPLE" because "RENEWED" at each pedal turn and constantly "CONSOLIDATED" by "THE ROTA ASCENDANCE
TIVE "of movement.

 50 THE PHYSIOLOGICAL ADVANTAGE arising from this "differentiation" forces the organism to conserve its ENERGY POTENTIAL.

 The "SYNTHESIS" of the aforementioned elements therefore ensures the "genesis" of a more consistent and appropriate application to the mechanical functions of all muscles and attachments implicitly linked to the movement.

Also, without deception or the slightest additive, and in compliance with ARTICLE 49 on the regulation of the "bicycle", this PROCEDE has the privilege of including when pedaling an "ENERGY SURPLUS" which amplifies the volume of the force applied to the detriment of the resistance found in the action thus ensuring an almost permanent improvement in its
EVOLVING SYSTEM.

In conclusion, this "PEDALIER" being the DRIVING ELEMENT of a "SYSTEM" which ENSURES the BEST FUNCTIONING of a BICYCLE differs from
ANY OTHER CRANKSET with a "LEVER ARM (7) OF PROFILED SECTION A
DOUBLE WALL (8) which INSERTS the "PRINCIPLE" OF THE "U" IRON (9) into its CUT, this CRANK being characterized, in its concept, by a "DOUBLE
CURVE "including the" POSITIONING "and the" DIMENSIONAL VALUE "of its
RADIUS "AWAY", in ACTION, the "CENTER OF GRAVITATION" OF PEDA
LAGE (16).

ACCORDING TO PARTICULAR EMBODIMENTS
According to the standards fundamentally linked to the criteria of use, this PEDALIER designed for "CYCLES" of all kinds, can be manufactured in a wide production process since perfectly "ADAPTABLE" to all "VELQS1, categorized in the productive range of "CYCLE", namely: TOURISM ,,. CYCLING, BI-CROSS, COMPETITION,
MOUNTAIN CYCLES, etc ... etc ...

The "PRODUCT" can be achieved by "COULAGE" ... or any other PRO
CEDE OF MANUFACTURE benefiting, in this area, from
POINT.

For the "COMPETITION" the "RAW MATERIAL USED" must have a "BREAKING POINT" equivalent or very close to that of "TITANIUM"
The "THREADING" of all fixing parts will be carried out to "EUROPEAN STANDARDS".

The attached DRAWINGS illustrate the INVENTION:
Figure 1 shows the FULL CRANKSET.

FIG. 2 represents the CUT OF THE CRANKSET ACCORDING TO THE INVENTION.

Figure 3 the adaptation parts to the product.

Figures 4, 5 and 6 schematize the movement.

With reference to these drawings, the CRANKSET includes a LEVER ARM (7) characterized by a DOUBLE PROFILED SECTION
WALL (8) which distinguishes it from the traditional crankset by means of a
PROCEDURE FOR IMPROVING THE PEDALING which insures REMOTE SYSTEMA
CENTER OF GRAVITY TICK (Ih)) from its SUPPORT POINT (O.).

The body of the latter is hollowed out and partially hollow as a function of an OPENING (10) effected along its internal part thus constituting a DOUBLE-WALL (8) having the aim of joining its
SECTION THE PRINCIPLE OF THE "U" IRON (9).

 This "particularity" is highlighted with a view to reducing, in action, the risk of "DEFORMATION" caused by the "buckling forces".

 A SHOULDER (11), produced on the outer blank of its end, comprises a THREADED HOLE (12) for fixing the pedal.

At the base of the LEVER ARM (7) a CONICAL SQUARE SQUARE (13) with, outside, a CAVITY (14) for receiving a POUSER COVER
SEAT (15) in plastic.

 The "TYPE" of FIXING BRANCHES (16) for toothed crowns will be determined, for each crankset, according to a variant not illustrated according to the various models produced.

 A CRANKSET AXIS (17) with SQUARE AND CONICAL END CAPS (18) with, at each end, a THREADED HOLE (19) and TIGHTENING SCREWS (20) for fixing the crankset.

 The adaptation of the TOOTHED CROWNS (21) is planned according to the fixing branches created for this purpose.

 Finally, a FINISHING JOINT IN PLASTIC MATERIAL (22) matching the colors of the "VELO" for a better presentation of the product.

 The "dust covers" can also be made of plastic material of the same color.

The "PRODUCT", according to the INVENTION, is particularly intended to enhance the practice of cycling in all variations of CYCLING
LEISURE and COMPETITION.

Claims (7)

- CLAIMS  1) - CYCLE CRANKSET to ENHANCE "BIKE PRACTICE" characterized by a "LEVER ARM" (7) OF DOUBLE PROFILED SECTION WALL (8) which differs from the TRADITIONAL CRANKSET by a "PROCEDE FOR IMPROVING PEDALING "due to" SYSTEMATIC REMOVAL "from" CEN TRE OF GRAVITATION (te) compared to the "ROTATION AXIS" (o!) (AXIS OF CRANKSET).  2) - CRANKSET, according to claim 1, characterized by an ARM OF LEVER (7) which includes a DOUBLE-CURVE (C and D) whose positioning and dimensional value of its spokes "AWAY", in action, the "CENTER OF GRAVITATION" of pedaling.  3) - PRODUCT according to any one of the preceding claims, characterized in that it comprises a LEVER ARM (7) OF SECTION PROFILE of which the OPENING (10), carried out in its internal part, constitutes a DOUBLE-WALL (8).  4) - PRODUCT according to any one of the preceding claims, characterized in that it comprises a LEVER ARM (7), the OU VERTURE (10) aims to reduce its weight by joining its SECTION DOUBLE WALL PROFILE (8) THE PRINCIPLE OF THE "U" IRON (9).  5) - PRODUCT according to any one of the preceding claims, characterized by a LEVER ARM (7) having a SHOULDER (11) produced on the outer blank of its end.  6) - PRODUCT according to any one of the preceding claims, characterized by a DUST COVER (15) and a FINISHING JOINT (22) both made of plastic material matching the colors of the BIKE.  7) - PRODUCT according to any one of the preceding claims, characterized by the "CONCEPT" of this "SYSTEM" included in REALISA TION of ALL MECHANICAL PARTS implicitly LINKED to "WORKS MENT "of a" MOTOR "