Spring devices – Bendable along flat surface
Patent
1988-07-12
1989-11-28
Kashnikow, Andres
Spring devices
Bendable along flat surface
267227, 267229, 267361, 267160, 267 47, B60B 1100
Patent
active
048832618
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates generally to the construction of resilient elements, and more particularly to blade springs.
2. Description of the Prior Art
The ever growing number and variety of motor vehicles produced makes it very important to expand the functional capabilities of resilient suspension elements, such as plate or blade springs.
There is known a Zamitter blade spring (cf., e.g., USSR Inventor's Certificate No. 1,040,244, Int. Cl. F. 16 F 1/18, published 1980) made from a resilient plate or blade having variable cross-sectional dimensions in terms of the length of the blade and comprising a midportion, and end portions joined to the midportion by their ends, other ends of the end portions having eyes for receiving elements of pivotable connections of the blade spring with axes of the eyes being perpendicular to the plane of the neutral line of the resilient blade passing through the centers of gravity of the cross-sections. In this blade spring the end portions of the resilient blade have equal length.
However, in a number of instances, such as in the front suspension of a truck, the required length of the end portions of the resilient blade is limited by the floor of the truck body, whereas the overall length of the spring is limited by the adjacent chassis units, that is confined by the space congested with other parts of the truck chassis. (Conversely, reduced length of the end portions of the resilient blade, or shorter overall length of the spring blade affects the spring compliance.
SUMMARY OF THE INVENTION
It is therefore an object pof the present invention to provide a Zamitter blade spring having end portions thereof such relative length as to expand its functional capabilities and improve its relative compliance.
The object of the invention is attained by a Zamitter blade spring made from a resilient blade having variable cross-sectional dimensions in terms of the blade length and comprising a midportion and end portions joined to the midportion by their ends, other ends of the end portions having eyes for receiving elements of pivotable connections of the blade spring, axes of these eyes being perpendicular to the plane of arrangement of the neutral line of the resilient blade passing through the centers of gravity of its trnsverse cross-sectional planes. According to the invention, the end portions of the resilient blade are of different lengths.
Preferably, in the Zamitter blade spring the ends of the end portions of the resilient blade in which there are provided the eyes for receiving elements of pivotable connections of the blade spring are arranged so that the geometrical connecting line of the centers of the eyes for receiving elements of pivotable connections of the blade spring is at an angle to that part of the neutral line of the resilient blade, which passes along its midportion.
Desirably, the angle at which the geometrical connecting line of the centers of the eyes for receiving elements of pivotable connections of the blade spring relative to that part of the neutral line of the resilient blade, which passes along its midportion, is smaller than 90.degree..
Advisably, the ends of the end portions of the resilient blade in which the eyes for receiving elements of pivotable connections of the blade spring are provided are disposed so that the distances from the axes of these eyes for receiving elements of pivotable connections of the blade spring to the centers of gravity of the joint planes of its midportion with the corresponding end portions are equal.
Favourably, the ends of the end portions of the resilient blade having the eyes for receiving elements of pivotable connections of the blade spring are disposed so that the distance from the axis of the eye for receiving elements of pivotable connections of the blade spring of the end portion of greater length to the center of gravity of the joint plane of its midportion with this end portion is smaller or greater than the distance from the axis of the eye for receivi
REFERENCES:
patent: 1188821 (1916-06-01), Peck
patent: 3190632 (1965-06-01), Barenyi
Kashnikow Andres
Le Mark T.
LandOfFree
Zamitter blade spring does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Zamitter blade spring, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Zamitter blade spring will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-577941