CS265318B1

CS265318B1 - Suspension of any wheel of light two-wheelers

Info

Publication number: CS265318B1
Application number: CS874854A
Authority: CS
Inventors: Karel Cap
Original assignee: Karel Cap
Priority date: 1987-06-29
Filing date: 1987-06-29
Publication date: 1989-10-13
Also published as: CS485487A1

Abstract

Riešenie zavesenia žádného kolesa lahkého jednostopového vozidla spočívá v tom, že závěs je k rámu připojený dvorná~ plochými pružinami - závěsnou a stabilizač- ňou. Neutrálně poloha závesnej pružiny je určená spojnicou osi hnacieho kola (na motore alebo šlapadlách) a osi hnaného kola na zadnom kolese.The solution for the suspension of a single wheel of a light unicycle is that the suspension is connected to the frame by two flat springs - suspension and stabilizer. The neutral position of the suspension spring is determined by the connecting line between the axis of the driving wheel (on the motor or pedals) and the axis of the driven wheel on the rear wheel.

Description

265318 2265318 2

Vynález sa týká konštrukčného riešenia zavesenia žádného kolesa lahkých jednostopovýchvozidiel a to jak bezmotorových (bicykle), tak i s malým motorom a s omedzenou rýchlosťou(mofa, moped, atcl) .BACKGROUND OF THE INVENTION The present invention relates to a structural design for the suspension of a wheel of lightweight single-track vehicles, both non-motorized (bicycles) and with a small motor and with limited speed (mofa, moped, atcl).

Konkurenceschopnost výrobku je podmienená jeho úžitnou .hodnotou, Dóležitý parametervozidla je odpruženie jeho kól, Je známa rada konštrukcií závesov kol jednostopových vozi-diel (jak bicyklov tak motocyklov), ktoré umožňujú odpruženie kolesa a zabezpečuji! jeho pohybpo požadovanej dráhe. Majů niekolko spoločných vlastností (zložitý a tým drahý mechanizmus,ktorý podlieha opotrebeniu, vyžaduje údržbu, nelahko sa prispdsobuje zaťaženiu vozidla, atd),ktoré ich uprednostňujú pre vSčšie a velké vozidlá a neumožňujú ich použitie u malých vozidiela bicyklov a to predovšetkým z ekonomických dóvodov.The competitiveness of the product is conditional on its useful value, important parameter is the suspension of its wheel, It is a well-known series of wheel suspension designs of two-wheelers (both bicycles and motorcycles) that allow the suspension of the wheel and ensure! its movement in the desired path. Having several common features (complex and thus expensive to wear, requiring maintenance, does not easily affect the load on the vehicle, etc.) that favor them for larger and large vehicles and do not allow them to be used in small bicycle vehicles, especially for economic reasons.

Tieto nevýhody odstraňuje riešenie zavesenia kolesa podlá vynálezu, ktorého podstataspočívá v tom, že závěs žádného kolesa je k rámu vozidla připojený závěsnou pružinou (horizon-tálna uloženou) a šikmo k nej .postavenou stabilizačnou pružinou. Výhoda zavesenia žádného kolesa lahkého jednostopového vozidla podlá vynálezu spočíváv tom, že závěs je jednoduchý, technologicky nenáročný, má malú hmotnost, nepodlieha opotrebe-niu a je možné lahko upravit charakteristiku pruženia.These drawbacks are eliminated by the wheel suspension solution according to the invention, which consists in the fact that no wheel suspension is attached to the vehicle frame by a suspension spring (horizontal) and a stabilizing spring placed thereon. The advantage of suspending any wheel of a lightweight two-wheeled vehicle according to the invention is that the hinge is simple, technologically undemanding, has low weight, is not subject to wear and it is easy to adjust the spring characteristic.

Konštrukčné riešenie zavesenia podlá vynálezu je znázorněné na priloženom výkrese. Obr. 1znázorňuje bočný pohlad (nárys) na závěs v "neutrálnej" polohe. Obr. 2 znázorňuje pohladzhora (pddorys) na horizontálnu část závěsu a upřesňuje tvar závesnej pružiny. Obr. 3 znázor-ňuje 'schematicky kinematiku celého závěsu. Závěs 11 kolesa, ktorý je zložený z dolr.eho ramena 11a, horného ramena 11b, spojovaciehočlena 11c, kotviacich členov lid a koncoviek lle je závěsnou pružinou 12 a stabilizačnoupružinou 3 3 pružné připojený k rámu 23 vozidla, na ktorom sú kotviace členy 18 rámu. Závěsnápružina 12 leží v rovině 15, ktorá v neutrálnej (strednej) polohe závěsu 11 prechádza osamiotáčania hnacieho kolesa 16 a hnaného kolesa 17. Pruženie celého systému zabezpečuje pneuma-tický pružiaci člen 20, v ktorého dutině je doraz 21 pruženia a je opatřený ventilom 22(ako májů duše pneumatik vozidla) umožňujúcim prispósobiť charakteristiku pruženia závěsu,hmotnosti jazdca a povrchu vozovky.The suspension design of the invention is illustrated in the accompanying drawing. FIG. 1 shows a side view (front view) of the hinge in a "neutral" position. FIG. 2 shows a top view of the horizontal portion of the hinge and specifies the shape of the suspension spring. FIG. 3 illustrates schematically the kinematics of the entire hinge. The wheel hinge 11, which is composed of a lower leg 11a, an upper leg 11b, a connecting member 11c, anchoring members 11a and 11e, is elastically coupled to the vehicle frame 23 on which the frame anchors 18 are anchored. The suspension spring 12 lies in a plane 15 which, in the neutral (hinge) position of the hinge 11, passes through the rotation of the drive wheel 16 and the driven wheel 17. The spring of the entire system is provided by a pneumatic spring member 20 in whose cavity the spring stop 21 is provided and is provided with a valve 22 ( as the tires of the vehicle's tires), allowing the suspension characteristics of the suspension, the weight of the rider and the road surface to be adjusted.

OO

Aby zavesenie žádného kolesa podlá vynálezu dostatočne zabezpečovalo pohyb- kolesav požadovanej rovině a vylúěilo další stupeň volnosti (bočná stabilita), inusia byt obidvepružiny relativné široké. Závěsná pružina 12 musí byť· širšia ako polovica pružiacej dlžky(jej základný tvar je obdížnik) a stabilizačná pružina 13 nesmie mať pružiacu dlžku váčšiuako dve a pol šířky (jej základný tvar je rovnoramenný lichoběžník širšou stranou k závesnejpružině 12) .In order that the suspension of any wheel according to the invention sufficiently ensures that the desired level of movement is avoided and a further degree of freedom (lateral stability) is avoided, the two springs will be relatively wide. The suspension spring 12 must be wider than half of the resilient length (its basic shape is a rectangle) and the stabilizing spring 13 must not have a resilient length like two and a half widths (its basic shape is an isosceles trapezoid with a wider side to the suspension spring 12).

Zavesenie žádného kolesa podlá vynálezu je možné použit pre lahké jednostopové vozidláa to ako bezmotorové (bicykle), tak s malým motorom, u ktorých sa nevyžaduje enormne vysokýzdvih pruženia.The suspension of any wheel according to the invention can be used for lightweight two-wheeled vehicles, both non-motorized (bicycles) and with a small motor, which do not require an enormous high-lift.

Claims

OBJECT OF THE INVENTION

Wheel suspension of light two-wheeled vehicles, characterized in that no wheel suspension (11) is connected to the vehicle frame (23) by a suspension spring (12), the neutral position of which is determined by connecting the driving wheel axis and the driven wheel axis on the rear wheel and at an angle to A stabilizing spring (13), which forms an angle (A) of 40 ° to 70 ° together.

2. Suspension of any wheel of a light two-wheeler vehicle according to claim 1, characterized in that the width of the suspension spring (12) is at least half its spring length and the spring length of the stabilizing spring (13) is not more than two and a half widths.

Suspension of any wheel of light two-wheeled vehicles according to items 1 and 2, characterized in that the lower arm (11a) and the upper arm (11b) reinforce the coupling member (11c), which has the shape of a mudguard.

4. Suspension of any wheel of a light two-wheeler vehicle according to items 1, 2 and 3, characterized in that the suspension (11) of each wheel is springed by a pneumatic barrel-shaped member (20) in the cavity of which the spring stop (21) is provided with a valve.