FR2542272A1 - HANDLEBAR OF BICYCLES, IN PARTICULAR BICYCLES FOR CHILDREN - Google Patents

Abstract

THE INVENTION RELATES TO A CYCLE STEERING DEVICE, MORE PARTICULARLY TO A BICYCLE HANDLEBAR, IN PARTICULAR INTENDED FOR CHILDREN. THE HANDLEBAR 1 ACCORDING TO THE INVENTION INCLUDES A BODY 5 OF MOLDED THERMOPLASTIC MATERIAL IN WHICH IS FLOODED A METAL TUBE 8 DIRECTLY ENGAGED WITH A STEERING TUBE AND WHICH EXTENDS BETWEEN THE PORTIONS OF TAP 3 IN CORRESPONDENCE OF AN ALTERNATING FRONT AND BACK EDGE OF THE SAME BODY 5. THIS LAST BODY 5 CAN ENGAGE WITH LEVERS 10 OF THE BRAKES ESSENTIALLY SHAPED IN THE SHAPE OF CALIPERS AND ENDING IN A CENTRAL PORTION OF THE BODY 5. FURTHERMORE, METAL TUBE 8 IS ENGAGED WITH THE STEERING TUBE AT MEANS OF CONNECTING ELEMENTS ALLOWING ANGULAR ADJUSTMENT OF THE POSITION OF THE HANDLEBAR IN RELATION TO THE STEERING TUBE.

Description

The present invention relates to bicycle handlebars, in particular

  particular bicycles for children. Bicycle handlebars are known which have an essentially double-loop shape, the grip portions of which are substantially parallel to each other.

  the other and symmetrical with respect to a

tion.

  Trap-like handlebars are also known.

  different, defined by a metal tube

  folded and supporting at its ends handles.

  All these types of handlebars currently being used

  are effective in their functional character

  but they have rather remarkable practical disadvantages

  Indeed, the handlebars of known type can be

  settled within their very limited limits.

  of the brake levers and finally are unsatisfactory in terms of their characteristics concerning the prevention of

  accidents, since they have, in particular,

  tie in matching brakes, slots that are

  open and closed when using the brakes.

  It should be noted that the low adjustment possibilities have a remarkable impact on the overall balance of the bicycles, which reduces the possibility of their use by people whose size is not exactly appropriate to the size of the frame; The rather difficult translation of the brake levers also creates a significant increase in the cost price.

  andrequest the employment of specialized staff.

  In this situation, the technical task on which the present invention is based is to design a bicycle handlebar able to overcome the above-mentioned drawbacks while keeping all the characteristics of a normal handlebar. As part of this technical aspect, it is an important object of the present invention to use a handlebar which is particularly advanced in terms of its accident prevention characteristics, that is to say capable of meeting all the standards.

  and trends in the different countries, in this

specific Maine -

  Another important goal of this invention is

  tion is to implement a handlebar of

  practically universal characteristics being provided with wide adjustment possibilities with regard to its

position and inclination.

  Another object of the present invention is

  him to implement a handlebar of particular structure

  extremely simple, inexpensive, which can be

  easily and yet able to take very sophisticated characteristics, for example as regards its equipment in accessories or decorative elements. The technical task mentioned above and the above mentioned goals are achieved by bicycle handlebars

  according to the present invention, in particular bicycle

  intended for children, essentially

  double loop or provided with

  parallel to each other and symmetrical in

  port to a steering tube, which is characterized in that it is obtained from a thermoplastic body

  molded in which is essentially embedded a metal tube

  directly engaged with said steering tube

  and which extends between said gripping portions in correspondence of an alternately front and rear edge of the same body, in that said body can engage

  with brake levers substantially shaped like

  sorting and terminating at a central portion of the same body, and in that said metal tube is engaged with said steering tube by means of connecting elements intended to allow an angular adjustment of

  the position of the same handlebar relative to the tube of di-

  rection, in said body being provided a central recess

  intended to allow said angular adjustment.

  Advantageously, said body is provided in the center of housings intended to contain support arms of said levers with stirrup-shaped brakes, capable of limiting the oscillations of the latter.

  in a substantially vertical direction and housing in the-

  which are enshrined spherical heads arranged at

the end portion of said arms.

  Suitably said central depression can

  to pay with a cover that goes through

pressure in said body.

  Other features and advantages

  will come out more clearly from the description of a form

  preferred embodiment of the invention, given simply by

  A non-limiting example with reference to the accompanying drawings, in which: Figures 1 and 2 respectively show side and

  in plan a bicycle provided with handlebars according to the pre-

  invention, which appears mounted on the bicycle.

  lette in two different positions; Figures 3, 4, 5 show respectively front, side and plan views of the handlebar according to the present invention; Figures 6, 7 and 8 are still front views,

  side and in the plane of the handlebar according to the present invention.

  tion, in which the latter is highlighted in section along corresponding lines; Figure 9 is a section of the handlebar executed along the line IX-IX of Figure 8;

  FIG. 10 is a section of the handlebar similar to that

  Figure 6 but where the brake levers have been partially displaced; Figure 11 shows in plan a brake lever; and Figure 12 shows the brake lever of the figure

  It corresponds to the section line XII-XII.

  Referring to these figures, the handlebar according to the present invention is generally indicated in 1 II

  is illustrated in FIGS. 1 and 2 applied to a bicycle

  It is obvious that the handlebar according to the present invention can be applied to children, being particularly suitable for this purpose.

than to any type of bicycle.

  The overall shape of the handlebar 1 is of the double-loop type, provided with gripping portions or handles 3 parallel to one another and symmetrical with respect to

a steering tube 4.

  According to the present invention, the handlebar 1 is obtained from a body 5 of suitable shape and molded plastic material The body 5 is provided with a central recess 6 (see in particular Figures 6 to 9), having for

  purpose of both lightening the body and housing of possible

  accessories, such as a warning tone, a-

  electric winder, a battery for

  drivers, odometer, clock, etc. The hollow 6 may advantageously be engaged with a cover casing 7 which can be inserted by pressure on the body 5 and intended to be carried out

  in different colors and with various images.

  In particular the casing 7 is likely to be

  accessories or may have simple decals

  comanies. FIG. 8 in particular shows that in the body 5 is embedded a metal tube 8 which engages directly with the steering tube 4

  metal tube 8 extends with a perfect development

  line between the end portions of the handles 3, defining an alternately front and rear edge of the handlebar 1, according to the angular position of the tube of

direction 4.

  The engagement between the metal tube 8 and the steering tube 4 is highlighted in the figure

  7: it is obtained by means of connecting elements

  tible to allow angular adjustment of the

  handlebar 1, with respect to a horizontal plane

  according to the invention, the metal tube 8 is connected to the steering tube 4 by means of a vice 9 which

  may be fixed in different positions and

  ge in the hollow 6 It is expected that the housing 7 has a

  suitable opening 7a (see in particular the

  3 and 5), in order to allow the movements of the group

  formed by the steering tube 4 and the vice 9.

  It should be noted again that the body 5 is

  completely devoid of chromed parts which in some

  countries are considered toxic and its shape is such that it is able to prevent crushing

  in particular in correspondence of the levers 10 of the brakes.

  Indeed the handles 3 are hollow to their parts ind

  and levers 10 are introduced into the body in correspondence of housing not accessible to the hands. The brake levers 10 and their use

  advantageous-in combination with the body 5 are set-

  Particularly in FIGS. 10 to 12, it can be seen from these figures that each lever of the brake 10 is substantially in the form of a stirrup, that is to say that it has a

  annular portion 10a of which is extended by

  attaching a support arm 10 b The latter introduces itself

  completely, thanks to its stepped shape, in a

  corresponding housing It intended to contain it, that

  limiting the maximum oscillations of the lever 10

substantially vertical direction.

  At the end of each housing there is provided a notch housing 12 for housing, by forced insertion by pressure, a spherical head 13 which is disposed at the end of the arm 10 b The housing

  notch 12 prevents the removal of the lever 10 and

  finishes the center of rotation of the same lever.

  FIG. 12 shows that the support arm 1b of each lever 10 is provided with a housing 14 intended to

  receiving the end of a brake wire and in particular

  tie his pod, which is likely to engage in

  a niche 15 placed inside the housing 14.

  The use of the handlebars in accordance with this

  This is particularly evident after the

  cription made above in mainly structural sense

tural.

  The handlebar 1 engages with the steering tube

  4 which may be of any form, corresponding to

  7 of the metal tube 8 and vice 9 This commitment makes it possible to choose, within certain limits, the implementation of

  angular position of the inclination of the handlebar 1 by

  substantially horizontal plans, as

  1 in addition, since the shape of the handlebar is substantially symmetrical, and the metal tube 8 is in correspondence of an edge of the same handlebar, the entire handlebar-steering tube group can be rotated 1800 of way that the handlebars can be

  disposed in a more or less advanced position, such as

in Figures 1 and 2.

  After choosing the most suitable position

  nable, within the limits possible, we can also introduce

  to draw one or two levers of the brakes 10 causing their forced penetration in correspondence of dwellings.

  and 12 This commitment can be carried out without the use

  tightening screws or rivets and can therefore be carried out without difficulty by non-specialized persons.

  Once introduced into their housing

  responders, the brake levers 10 conceal completely

  the same dwellings, avoiding in this way always

  the possibility of crushing the fingers of a hand, since they can not accidentally enter

them.

  The introduction and fixing of the brakes son can also be carried out without difficulty thanks to the presence of housing 14 and niches 15,

  the latter being intended to support the pods.

  It should be emphasized once again that the possibility of turning the handlebar 1 of 1800 in a substantially horizontal plane is favored by the symmetrical shape of the 8-lever brake 10 and the introduction of the support arms 10a in correspondence with a central area of

handlebar 1, close to the opening 6.

  The technical solution of concealing the opening 6 by means of a cover casing 7 is particularly advantageous. Thanks to this casing, the opening 6 can be used as a recess for receiving accessories and having any shape. , the cover casing 7, introduced simply by pressure, can be easily arranged according to the

various accessories.

  The invention achieves the intended goals.

  In addition to what we have already illustrated, we must

  emphasize again the simplicity and the cost price re-

  of this type of handlebar, as well as its uni-

  versel, its adaptability and security of

  ployment. Various modifications can be made to the present invention without departing from

  In addition, all the details can be

  may be replaced by technically equi-

  In practice, the materials used, the

  and the dimensions can be any

the necessities.

Claims (7)

R E V E N D I C A T IO N S   1 Handlebar (1) for bicycles, in particular   bicycles for children, of the essential type   double-loop or provided with gripping portions (3) substantially parallel to one another and symmetrical with respect to a steering tube (4), characterized in that   what is obtained from a body (5) made of thermoplastic material   molded tick in which is essentially drowned a tu-   metal be (8) directly engaged with said steering tube (4) and extending between said gripping portions (3) corresponding to an alternately front and rear edge of the same body (5), in that said body   (5) can engage with brake levers (10)   sibly shaped stirrups and resulting in a   same body, and that said metal tube   (8) is engaged with said steering tube (4) by means of connecting elements intended to allow an angular adjustment of the position of the same handlebar (1) with respect to the steering tube (4), in this body ( 5)   there being provided a central hollow (6) intended to allow the said angular adjustment.   Bicycle handle according to claim 1, characterized in that the body (5) is provided at the center of the housings (11) for receiving the support arms (10b) of said brake levers (10) in the form of stirrups. , addition   able to limit the angular oscillations of those   ci in the vertical direction, and slot notches (12) for spherical heads (13) disposed at the ends of the support arm (10b).   3 bicycle handlebars according to claim 2,   characterized in that the support arms (l Ob) are   seen from housings (14) for the ends of the wires -   brakes and recesses (15) adapted to receive the pods thereof.   4 bicycle handlebars according to claim 1, characterized   in that there is provided a cover housing (7) engageable by pressure with said body (5) and intended to hide the recess (6), this housing (7) being provided with an opening for said tube steering (4).   Bicycle handlebar according to claim 4, characterized   in that the housing (7) has a shape that at least partially marries   the accessories provided for said handlebar.   Bicycle handle according to claim 1, characterized   characterized in that the connecting elements between the metal tube (8) and the steering tube (4) comprise a vice (9) with adjustable pressure at by means of a screw.   7 bicycle handlebars according to claims 1 and 2,   characterized in that the support arm (1bb) of each brake lever (10) is stepped in correspondence with said housing (11) of   way it hides from outside the same dwellings.   8 bicycle handlebars according to claim 2, characterized   in that the handles (3) are hollow at their lower parts, in correspondence of the annular elements (1a) which define, with   the support arms (lob), said brake levers in the form of brake ers (10).