Operating lever comprising link system

Abstract

An operating lever (1) comprising corresponding a link system (2) is provided. The link system (2) has at least a first link part (3) and restoring means (5), which act on the at least one link part (3) and transfer the latter into a zero position. The operating lever (1) is guided in the link system (2), and the first link part (3) is movably mounted in such a way that a positional change of the operating level (1) to the link system (2) results in a movement of the at least one link part (3) in the direction of the restoring means (5) acting on the at least one link part (3).

Claims

1. A link system comprising an operating lever, wherein the link system has at least a first link part and restoring means, which act on the at least one link part and transfer the latter into a zero position, and wherein the operating lever is guided in the link system, the first link part is movably mounted in such a way that a positional change of the operating level results in a movement of the at least one link part in the direction of the restoring means acting on the at least one link part, wherein the link system has the first link part and a second link part, which are movably mounted in such a way that a positional change of the operating lever results in the two link parts being moved apart perpendicular to a pivoting plane, wherein the link parts have recesses, in which the operating lever is guided, wherein the width of the link in the region of the zero position of the operating lever in the direction of the operating lever radially to pivoting movement of the operating lever is designed so as to decrease with increasing distance therefrom, and wherein a pushing of the operating lever in the direction radially to the pivoting movement results in the two link parts being moved apart in the direction radially to the pivoting movement.

2. The operating lever comprising the link system according to claim 1, wherein the link system has exactly two link parts.

3. The link system according to claim 1, wherein the link parts have recesses, in which the operating lever is guided.

4. The link system according to claim 3, wherein the width of the link in the region of the zero position of the operating lever in the direction of the operating lever radially to pivoting movement of the operating lever is designed so as to decrease with increasing distance therefrom.

5. The link system according to claim 4, wherein a pushing of the operating lever in the direction radially to the pivoting movement results in the two link parts being moved apart in the direction radially to the pivoting movement.

6. The link system according to claim 1, wherein the width of the link is designed to decrease in the pivoting direction of the operating lever with increasing distance from the zero position thereof.

7. The link system according to claim 1, wherein the link has detent points and/or positive pressure points.

8. The link system according to claim 1, wherein a positional change of the operating lever to the link system results in the two link parts being moved apart relative to one another perpendicular to the pivoting plane of the operating lever.

9. The link system according to claim 1, wherein the operating lever has first and optionally second guide means, which limit the movement of the link parts to only one common axis.

10. The link system according to claim 9, wherein the first guide means are formed as protrusions.

11. The link system according to claim 10, wherein the protrusions are in elongated, cylindrical form, wherein the second guide means are formed as hollow spaces which correspond to the protrusions.

12. The link system of claim 9, wherein the first guide means are arranged on at least one of the link parts, and second guide means are arranged on the respective other link part correspondingly thereto.

13. The link system according to claim 1, wherein the link parts are movably mounted on one another.

14. The link system according to claim 1, wherein the restoring means are formed as elastic means.

15. The link system according to claim 14, wherein the elastic means include springs.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The invention will be described in an exemplary manner in a preferred embodiment with reference to a drawing, whereby further advantageous details can be gathered from the figures of the drawing. Functionally identical parts are thereby provided with the same reference numerals.

(2) The figures of the drawing show in detail:

(3) FIG. 1: a schematic exploded view of an operating lever according to the invention comprising link system in a preferred embodiment, wherein the operating lever is located in a zero position

(4) FIG. 2: a schematic side view of an operating lever according to the invention comprising link system in a preferred embodiment, wherein the operating lever is located in a deflected position

(5) FIG. 3: a schematic sectional view of an operating lever according to the invention comprising link system in a preferred embodiment, wherein the operating lever is located in a pushed-in position.

DETAILED DESCRIPTION OF EXAMPLE EMBODIMENTS

(6) FIG. 1 shows a schematic exploded view of an operating lever 1 according to the invention which is part of a link system 2 in a preferred embodiment, wherein the operating lever 1 is located in a zero position. The operating lever 1 is a simple, inherently rigid operating lever 1, which, in the shown embodiment, is pivotably mounted about a single pivot axis and moreover so as to be capable of being pushed in its direction radially to the pivoting movement. The link system 2 has two link parts 3, 4, which are movably mounted to one another. They are mounted so as to be guided through the housing 11 surrounding the entire link system 2, so that the link parts 3, 4 are movably mounted only on one axis and are positionally changeable to the housing 11. Guide means 8 are moreover provided, which are formed here as protrusions 9 and hollow spaces 10 corresponding thereto, whereby the link parts 3, 4 are moreover movably mounted to a limited extent on a common axis. The guide means 8 are thereby arranged exclusively on the link parts 3, 4, wherein the protrusions 9 are molded to the latter, and the hollow spaces 10 are molded into the link parts 3, 4. The link parts 3, 4 in each case have a recess 6, which is formed as groove, and, together with the recess 6 of the respective other link part 3, 4, define a link 7, which can also be referred to as link track. A free end of the operating lever 1 is guided in this link 7. Restoring means 5, which are formed as springs here, are provided in the link parts 3, 4. The restoring means 5 act on the link parts 3, 4 and move them towards one another, whereby they act on the operating lever 1, in turn. The link 7 is designed in such a way that the width thereof decreases starting at the region of the zero position of the operating lever 1 in the pivoting direction of the operating lever 1 with larger distance from the region of the zero position. In the region of the zero position of the operating lever 1, the width of the link moreover decreases in the direction thereof radially to the pivoting movement with increasing distance therefrom. It is attained thereby that a pivoting deflection as well as a pushing of the operating lever 1 radially to the pivoting movement leads to the link parts 3, 4 being pushed apart, whereby the restoring force, which is generated by means of the restoring means 5, on the link parts 3, 4 and via this on the operating lever 1 increases. According some embodiments the link 7 has detent points 13 and/or positive pressure points 12. The detent points 13 and/or positive pressure points 12 are provided for the pushing as well as the pivoting movement of the operating lever 1, by means of which, in addition to the zero position, further local rest positions or those positions are provided, by means of which a user experiences an increased resistance to the further deflection of the operating lever 1 at certain deflections in response to operating the operating lever 1.

(7) FIG. 2 shows a schematic side view of an operating lever 1 according to the invention comprising link system 2 in a preferred embodiment, as illustrated in FIG. 1, wherein the operating lever 1 is located in a deflected position. By means of the deflection of the operating lever 1 and the free end of the operating lever 1 guided in the link 7 formed by means of the recesses 6 of the link parts 3, 4, the link parts 3, 4 are pushed apart, because the free end of the operating lever 1 displaces the link parts 3, 4 on the basis of the link 7, which becomes narrower to the outside in the pivoting direction starting at the zero position, and the link parts 3, 4 are movably mounted to a limited extent on only one common axis. In this position, the restoring force on the operating lever 1 is larger than in response to a smaller deflection of the operating lever 1 on the basis of the design of the link 7, which becomes narrower to the outside.

(8) FIG. 3 shows a schematic sectional view of an operating lever 1 according to the invention comprising link system 2 in a preferred embodiment, as illustrated in the previous figures, wherein the operating lever 1 is located in a pushed-in position. Here, the design of the link 7, which is formed by means of the recesses 6 of the link parts 3, 4, is visible in the region of the zero position, the width of which decreases in the direction of the operating lever radially to the pivoting movement with increasing distance from said operating lever, so that a pushing in of the operating lever 1 in the direction radially to the pivoting movement results in the link parts 3, 4 being pushed apart.

(9) What is not illustrated is an embodiment according to the invention, in the case of which only one link part 3 is provided, on which the restoring means 5 act, which support themselves on the housing 11 in this case. This simplest embodiment according to the invention is constructed narrower than the above-described embodiment and can thus be advantageous. On the other hand, it lacks the self-centering and similar movability of the above-describe embodiment.

(10) In a preferred embodiment as two link parts, which are movable against one another and which are in particular guided along one another and which are moved apart from one another by means of a movement of the operating lever against a force, the design of the link according to the invention provides for a force curve, which changes with increasing deflection of the operating lever.