Device having a pivot lever

Abstract

A device has a pivot lever which has a first pivot arm, a second pivot arm and a joint connecting the two pivot arms to one another, wherein the two pivot arms have opposite end faces, and each end face is divided by the joint into two sections which are oriented at an obtuse angle relative to one another. The device enables a direction-dependent transmission of torque.

Claims

1. A device, comprising: a pivot lever having a first pivoting arm, a second pivoting arm and a joint which connects the first and second pivoting arms to one another, wherein the first and second pivoting arms have end sides which lie opposite one another, each end side is divided by way of the joint into two sections which are oriented at an obtuse angle with respect to one another, and the first pivoting arm is connected to a linearly guided pull handle at an end which faces away from the joint.

2. The device as claimed in claim 1, wherein the sections which lie opposite one another of the first and second pivoting arms run parallel to one another on a first side of the joint, and the sections which lie opposite one another of the first and second pivoting arms enclose a clearance angle between them on a second side of the joint.

3. The device as claimed in claim 2, wherein the second pivoting arm is fastened to a rotational axis at an end which faces away from the joint.

4. The device as claimed in claim 1, wherein the sections which lie opposite one another of the first and second pivoting arms enclose a clearance angle between them on both sides of the joint.

5. The device as claimed in claim 4, wherein the second pivoting arm is fastened to a rotational axis at an end which faces away from the joint.

6. The device as claimed in claim 1, wherein the second pivoting arm is fastened to a rotational axis at an end which faces away from the joint.

7. The device as claimed in claim 1, wherein a linear movement of the linearly guided pull handle brings about a pivoting movement at least of the first pivoting arm.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a schematic diagram an outline view of the device according to an embodiment of the invention.

(2) FIG. 2 is a schematic diagram showing the device in a first position.

(3) FIG. 3 is a schematic diagram showing the device in a second position.

DETAILED DESCRIPTION OF THE DRAWINGS

(4) In the figures, the device is described and explained using the example of a vehicle seat with an entry aid for rear passengers.

(5) A pull handle 1 which is guided in a linear guide 2 is mounted on a vehicle seat. The pull handle 1 has a handle 3 at its one end. At its end which lies opposite the handle 3, the pull handle 1 is connected to a first pivoting arm 4 of a pivot lever in such a way that a movement of the pull handle 1 in the direction of the arrow A (upward in FIG. 1) leads to a pivoting movement of the first pivoting arm 4 in a first direction according to the arrows B (in the clockwise direction). Here, the bearing point of the first pivoting arm 4 on the pull handle 1 can move in the direction of the double arrow C in a slot of the pull handle 1.

(6) The first pivoting arm 4 is connected via a joint 5 to a second pivoting arm 6 which is coupled on its end which faces away from the joint 5 to a rotational axis 7.

(7) The two pivoting arms 4, 6 have end sides which lie opposite one another, and each end side is divided by way of the joint 5 into two sections 4a, 4b and 6a, 6b which are oriented in each case at an obtuse angle (FIG. 1 and FIG. 3) with respect to one another.

(8) In the exemplary embodiment which is shown in FIG. 1, the sections 4a and 6a which lie opposite one another of the two pivoting arms 4, 6 run parallel to one another on a first side of the joint 5, whereas the sections 4b and 6b which lie opposite one another of the two pivoting arms 4, 6 enclose a clearance angle (FIG. 1 and FIG. 2) between them on a second side of the joint 5.

(9) As a consequence of this configuration, a pivoting movement of the first pivoting arm 4 in the direction of the arrows B is transmitted directly to the second pivoting arm 6 which is then pivoted in the direction of the arrows D (in the clockwise direction).

(10) FIG. 1 shows a position, in which the pull lever handle 1 is situated in a lower position. If the pull handle 1 is then pulled out of the position which is shown in FIG. 1 into the upper position which is shown in FIG. 2, the first pivoting arm 4 is pivoted in the direction of the arrows B. Since the sections 4a, 6a which lie opposite one another of the two pivoting arms 4, 6 run parallel to one another on the first side of the joint 5, a pivoting movement of the first pivoting arm 4 is transmitted directly into a pivoting movement of the second pivoting arm 6 in the direction of the arrows D. As a result, the rotational axis 7 can be pivoted and, for example, a mechanism for unlocking a backrest can be released.

(11) If the pull handle 1 is then transferred again into its lower position which is shown in FIG. 3, the first pivoting arm 4 is pivoted counter to the direction of the arrows B (in the counterclockwise direction). Here, the sections 4a, 6a which lie opposite one another of the two pivoting arms 4, 6 move away from one another on the first side of the joint 5, whereas the sections 4b, 6b which lie opposite one another of the two pivoting arms 4, 6 approach one another on the second side of the joint 5 (FIG. 3).

(12) The magnitude of the clearance angle can be used to set whether the pivoting movement of the first pivoting arm 4 is to be transmitted to the second pivoting arm 6 at all or only in a delayed manner.

(13) As an alternative to the embodiment which is shown in the figures, the sections 4a, 6a which lie opposite one another on the first side of the joint 5 can also enclose a clearance angle between them, with the result that there is then a clearance angle between the sections 4a, 6a and 4b, 6b which lie opposite one another of the two pivoting arms 4, 5 on both sides of the joint 5. If this is the case, a pivoting movement of the first pivoting arm 5 in the direction of the arrows B is also transmitted to the second pivoting arm 6 only in a manner which is more or less delayed, depending on the magnitude of the clearance angle.

LIST OF DESIGNATIONS

(14) 1 Pull handle 2 Linear guide 3 Handle 4 First pivoting arm 5 Joint 6 Second pivoting arm 7 Rotational axis A Arrow B Arrow C Arrow D Arrow Obtuse angle Clearance angle

(15) The foregoing disclosure has been set forth merely to illustrate the invention and is not intended to be limiting. Since modifications of the disclosed embodiments incorporating the spirit and substance of the invention may occur to persons skilled in the art, the invention should be construed to include everything within the scope of the appended claims and equivalents thereof.