DE8319375U1 - HANDLEBAR HALF FOR A MOTORCYCLE - Google Patents

Description

This type of attachment has the disadvantage that a secure attachment of the link arm in the selected angular position is practically not possible. So tight that The screw may also be tightened due to the bumps that occur when driving and cause the Straßfe caused vibrations or shocks that over the hand attacking the free end of the handlebar half of the driver considerable torsional forces are exerted on the fastening, which in the case of only frictional engagement Connection of the two conical parts to one another, turning the link arm from the previously selected position to Have consequence.

One aim of the innovation is therefore to create a handlebar half of the free from the defects mentioned above

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The innovation relates to one half of the handlebar for a |

Motorcycle, with a clamp that can be fastened to a tubular shaft of the front fork I of the motorcycle and a handlebar arm with a holding | IQ head, which can be fastened to the clamp by means of a screw in such a way that the angular position of the link arm with respect to the clamp can be pivoted by pivoting around the axis of the screw.

In a known handlebar half of the type mentioned belong to the releasable connection between the clamp and the handlebar a conical pin protruding from the holding head of the handlebar arm and a shaped pin in the clamp, conical seat complementary to the pin for receiving the pin. The fastening screw is coaxial through the conical pin passed through and screwed into a threaded hole in the bottom of the seat.

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type mentioned at the beginning "

According to the innovation, this goal is achieved in that

the clamp and the handlebars made of a light meball alloy are forged and can be brought into mutual abutment j flat end faces of the clamp and the Half head of the handlebar arm formed by forging, each other have complementary Rädiälvefzahnungen.

The complementary radial teeth of the clamp and the holding head result in both a force and a position in any angular position of the link arm positive connection without the fastening screw needing to be tightened excessively.

When forging the two parts from a light metal alloy, the respective radial toothing can be combined into one be shaped in a single operation, with the smallest possible pitch an almost infinitely variable adjustability of the handlebar. For this purpose, the radial teeth preferably have a pitch of approx. 5 °.

In the following an embodiment of the innovation is described with reference to the drawing. Show it: 25th

Fig. 1 is an oblique view of a motorcycle with one composed of two handlebar halves according to the innovation Handlebars,

Fig. 2 is a disassembled oblique view of a handlebar half on an enlarged scale and

Fig. 3 is a partially sectioned view of a

Handlebar half in the assembled state. 35

As can be seen in Fig. 1, the front fork of a motorcycle has a pair of substantially upright, parallel tubular spars T, on the upper part of each one

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Handlebars 10 is attached according to the innovation. the Both handlebar halves 10 each have the same structure and each have a handlebar arm 12., - On its free one End piece a handle M and at least one operating

g element C are attached,

The link arms 12 are described in the following Adjustable to the height of the handles M as well as the controls C of the body size and / or the habitual

^R 10 means to adapt the driver. In Fig. 1, the two link arms 12 are therefore shown in solid or dashed lines in two different settings.

As can be seen in particular in FIGS. 2 and 3, one forged from light metal belongs to each handlebar half 10 Clamp 14, which can be fastened to the respective tubular spar T by means of screws 16 and nuts.

The clamp 14 has a flat end face 20 which

20 is usually facing forward in the position of the clamp attached to the tubular spar T. The flat face is essentially ring-shaped and has radial teeth formed by forging.

In the middle of the flat face 20 is a ring

shaped centering hub 22, in which a coaxial Threaded hole 24 is formed.

The link arm 12 is also forged from light metal and has a holding head 26 of essentially frustoconical, bevelled shape. The larger base of the frustoconical holding head 26 has an annular, flat end face 28, the inside and outside diameters of which are those of the radially toothed end face 20 of the clamp 14 correspond, and many one of those of the end face 20 complementary radial teeth having.

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In the middle of the fädialverzahntefi end face 28 is a shaped cylindrical centering seat 30 for receiving the centering hub 22,

A bore 32 extending from the bottom of the seat 30 opens on the outside of the holding head 26 in an extension. One from the outside into the bore 32 of the holding head introduced fastening screw 36 with hexagon socket head is screwed into the threaded hole 24, as can be seen in Fig. 3 ..

When attaching the link arm 12, its holding head comes 26 with its radially toothed end face 28 in contact with the radially toothed end face 20 of the clamp 14, so that the link arm in numerous angular positions relative to the clamp 14 positively with this is connectable. The distances between the angular positions is determined by the division of the radial teeth determined, which is preferably about 5 °.

By tightening the screw 36, the two radially toothed End faces 20 and 28 held in a form-fitting manner in mutual contact. The fastening screw 36 is in turn held by a grub screw 38, which is screwed into a radial bore 40 of the holding head 26 and seated in the extension 34 of the bore 32 Head 42 of the screw engages.

Claims (1)

1GRÜNECKER, KINKEUDEY, STOCKMAIR & PARTNER * / PATENTANWÄLTEA. GRÜNECKER, wnoDR H. KINKELDEY, ori-imDR W. STOCKMAIR, an.-ι »λ, * εε) C * m-echjDR K. SCHUMANN. P *. FmsP.H.JAKOB.t> «.« JDR G BE2OLD. on. »« "W. MEISTER. on.ia5H. HILGERS. t«. «! DR K MEYER-PLATH, an. ~ * iΛ aOOO MUNICH 22 MAXJMUANSTRASSH £ 3 G 1292 TOMMASELLI SpA Via G. Reiss Romoli 250/14 Torino Italy Handlebar half for a motorcycle S_c h_u t ζ a η s_p r ü che 1. Handlebar half for a motorcycle, with one attachable to a tubular spar of the front fork of the motorcycle Clamp and a laterally protruding from the clamp handlebar arm with a holding head, which by means of a screw can be attached to the clamp so that the angular position of the link arm with respect to the clamp is adjustable by pivoting about the axis of the screw, characterized in that the clamp (14) and the link arm (12) are forged from a light metal alloy and are connected to one another Flat end faces (20, 28) of the clamp (14) and the holding head (26) of the link arm (12) that can be brought into contact with each other Complementary radial gears formed by forging exhibit. I 1 2. Handlebar half according to claim 1, characterized in that g e k e η η * indicates that the radial teeth of the opposite I-side contact can be brought into end faces (20, 28) I have a pitch of approx. 5 °. ί ⁵ "ί; 3rd handlebar half according to claim 1 or 2, characterized fi marked that the in mutual '' ■ Radially toothed end faces (20, 28) that can be brought into abutment are annular and that on one of the end faces a 10 centering hub (22) protrudes, which is in a centering ] i seat (30) of the other end face is received. 15th 20th 25th 30th 35