FR2503080A3 - DEVICE FOR LOCKING A HANDLEBAR PARTICULARLY FOR TWO-WHEELED VEHICLES, SUCH AS BICYCLES, MOPEDS, MOTORCYCLES - Google Patents

Abstract

THE SUBJECT OF THE INVENTION IS A DEVICE FOR BLOCKING THE HANDLEBAR, PARTICULARLY ON TWO-WHEEL VEHICLES. IN THIS DEVICE, THE HANDLEBAR 1 IS CLAMPED BETWEEN THE TWO ELEMENTS 2, 14 CONSTITUTING THE DEVICE, THESE ELEMENTS BEING ARTICULATED TO OPEN IN HINGE AND TO BE LOCKED AGAINST THE OTHER THANKS TO A CLAMPING MEANS 11 .

Description

The subject of the present invention is a device for blocking a

  handlebars, particularly for two-wheeled vehicles such as

  bicycles, mopeds, motorcycles.

  Numerous devices are known for connecting the handlebar to the steering tube of two-wheeled vehicles. These are generally impractical devices having a large number of clamping screws, having an unsightly appearance and a structure

  complex, and that can be even dangerous.

  The object of the invention is to provide a

  positive handlebar lock that overcomes the aforementioned drawbacks

  which has several interesting features and

geous.

  According to a first characteristic, the blocking device

  The handlebar cage according to the invention is remarkable in that the handlebar

  donation is sandwiched between two articulated elements and

  stop against each other by means of a clamping device.

  The lower element is assembled with, or forms part of the steering tube, and has a housing for receiving the locking life of the device, which is thus subtracted from the

view.

  Advantageously, for security reasons, the upper element of the device may comprise a cover or

  protective envelope made of flexible plastic such as for example

  ply, polyurethane, capable of damping shocks. This enve-

  In addition, loppe confers a particularly attractive

  positive and also ensures a sealing function to prevent

  possible infiltration of water inside the latter.

  These and other features will stand out well

from the rest of the description.

  To fix the object of the invention, without, however, limiting

  ter, in the figures of the attached drawings o:

  FIG. 1 is a longitudinal sectional view of the device

  tif according to the invention, illustrating the handlebar in the locked position; Figure 2 is a sectional view along the line B - B of Figure 1;

  FIG. 3 is a view similar to FIG. 1, the arrangement

  sitive being in the unlocked position.

  In order to make the subject of the invention more concrete, it is now described in a nonlimiting manner with reference to the

  exemplary embodiments illustrated in the figures of the drawings.

  In the example shown, the locking device is mounted on a sports bicycle or racing, that is to say the type having a handlebar (1) of arcuate shape, called "hanger". he

  This is obviously an illustrative example that does not limit the

of the invention.

  The locking device comprises a first element also called lower element, designated as a whole by (2). This element is preferably made by stamping or die casting of a metal. The element (2) comprises a tubular part (3) intended to be assembled with the steering tube, by means of a connecting bolt (4) mounted inside the tubular part (3) and pressing in counter-support by its head (5), on a shoulder

  annular interior made in the tubular part itself.

  In addition to this tubular part, the lower element (2) comprises a cantilevered part (6) arranged angularly with respect to the tubular part (3). The cantilevered part (6) has a substantially flat upper face (7), on which a

  longitudinal rib designated by (8), acting as a means of

  forcing, centering and guiding. The cantilevered portion also has a through hole (9) formed with a shoulder

  abutment (10) against which abuts a clamping screw (11).

  The element (2) has at its front end a concave region (15) and configured in the form of a fork. Between the branches (12) of said fork, is articulated, via an axc (13), the upper element or second element of the device, designated in its

together by (14).

  In the illustrated example, this upper element (14) com-

  takes a metal portion (14A) having a concavity (16) facing the concavity (15) of the lower member (2). In the passage or opening defined by these two concavities (15) (16)

  in the assembly position, the handlebar (1), which is

  in the housing thus formed, by tightening the screw (11) to the inside of a threaded ring, flanged (17), mounted in the metal part (14A) Yde the upper element (14). Alternatively, the screw (11) can cooperate with a threaded hole formed for this purpose in the upper element (14). The metal part (14A) comprises, beyond the ring (17) or the above-mentioned threaded hole, an extension or tail (18) provided with a longitudinal groove (19)

  intended to cooperate by interlocking with the rib (8) of the element

  lower portion (2) for guiding the upper member (14). Tail

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  (18) is provided with two lateral wings (20).

  In the example shown, the top element is covered

  an envelope (21) of flexible plastic material such as polyurethane

  example, in which the part is partially embedded

  metal tie (14A) above. In order to ensure a firm retention of the casing (21), the metal part (14A) has a recess (22) on its periphery, which is occupied by the plastic material of the casing (21) which thus has a recess . In addition, the plastic material occupying the recess (22) fulfills the function of a seal when the two elements (2) and (14) are tight.

  against each other, using the screw (11), which prevents

  expensive water and moisture to penetrate inside the device and

of the tubular part (3).

  From what we have just explained, we understand easily

the operation of the device.

  After removing the screw (11), the upper element (14) is raised with respect to the element (2), in the direction of the arrow (F), FIG. 3; the handlebar (1), which can already be provided with the usual accessories such as handbrake, horn, handles, bandages or blankets, is placed in place

  by its central part, in the hollow of the concavity (15) of the ele-

  lower (2). The upper element is then returned to the position of FIG. 1; the device being in this position, it blocks the assembly by placing the screw (11) and tightening it. Obviously, the disassembly takes place in the order

  reverse of the aforementioned operations, the handlebar accessories remain

mounted on the handlebar (1).

  It is interesting to note that the metal portion (14A) of the upper element of the device is set to allow it to be used with cantilevered portions (6) of the bottom member (2) of sizes very different. In the case of parties

  Cantilevers of limited size, it will be sufficient to remove mechanically

  a more or less significant portion of the end of the tail (18), which, initially, is established to adapt to the

  envisaged maximum overhang of said portion (6).

  The upper element (14) may be entirely made of metal or from a plastics material having good mechanical strength. The part (14A) can also be made from

  of a plastics material having a suitable mechanical strength.

  The connecting bolt (4 - 5) can be completely

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  It is shown in the drawing, or only the head of this organ can be apparent; in this case, the upper element

  (14) is pierced with a hole for the passage of the bolt (4).

  The invention is in no way limited to that of these modes of application, nor to those of the embodiments of these various parts which have more especially been indicated; she

  on the contrary, embraces all variants.

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R E Y E N D I C A T I 0 N S

  -1- Device for locking a handlebar, particularly on a two-wheeled vehicle, characterized in that the handlebar (1) is clamped between two elements (2, 14) of said device, said elements being hinged together and can be blocked against each other by means of a clamping means (11). -2- Device according to claim 1, characterized in that

  that the two elements of this device are represented by a

  upper member (14) and a lower member (2), the lower member (2) being arranged to be assembled by appropriate means (4 - 5) with the steering tube of the vehicle, and being provided with a housing (9, 10) to house the clamping means (11) which is thus

subtract from the view.

  -3- Device according to claims 1 and 2 together,

  characterized in that the upper member (14) comprises a portion

  (14A) established for use with

  lower elements (2) of any size envisaged.

  -4- Device according to claims 1, 2 and 3 together,

  characterized in that the structural portion (14A) is provided with a cover (21) made of a plastic material capable of damping

the shocks.

  -5- Device according to claims 1, 2, 3 and 4

  seems, characterized in that the plastic cover (21)

  that partially envelopes the structural part (14A) in at least a part of its perimeter, so as to fulfill the function

seal.

  Device according to claims 1, 2, 3, 4 and 5

  together, characterized in that the connecting bolt (4, 5) is

  subtracted from view, its access being obtained by pivoting into position

  open position of the upper element (14) of the device.

  Apparatus according to claims 1, 2, 3, 4, 5 and 5

  6 together, characterized in that the head of the connecting bolt

(4 - 5) is apparent.

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  Apparatus according to claims 1, 2, 3, 4, 5, 6

  and 7 together, characterized in that the two elements (2, 14) of the device are hinged at (13) to one another at their front part.

  Apparatus according to claims 1, 2, 3, 4, 5, 6,

  7 and 8 together, characterized in that the two elements (2, 14) comprise complementary guide parts (8, 18, 19) and

  intended to interlock each other.