Switch actuation method and mechanism

• US 20070034492A1
• Filed: 08/10/2005
• Published: 02/15/2007
• Est. Priority Date: 08/10/2005
• Status: Active Grant

• Current Assignee: Bendix Commercial Vehicle Systems LLC (Estate of Heinz Hermann Thiele)
• Original Assignee: Bendix Commercial Vehicle Systems LLC (Estate of Heinz Hermann Thiele)
• Inventors: Johnson, Duane, Krause, Jeffrey
• Granted Patent: US 7,247,805 B2
• Time in Patent Office: Days
• US Class Current: 200/61.540
• CPC Class Codes: B60Q 1/441 Electric switches operable by the driver's pedals
• CPC Class Codes: B60T 7/02 for personal initiation
• CPC Class Codes: B60T 7/042 by electrical means, e.g. using travel or force sensors
• CPC Class Codes: B60T 7/085 by electrical means, e.g. travel, force sensors
• CPC Class Codes: H01H 3/14 adapted for operation by a part of the human body other than the hand, e.g. by foot
• CPC Class Codes: H01H 3/48 using lost-motion device

Abstract

A mechanism is provided for actuating a switch that transmits motion from a first component, which moves along a first path, to a system that is attached to the mechanism. The mechanism includes a second component that moves transverse to the first path and a third component having a switch actuating portion, wherein movement of the first component causes the third component to actuate the switch using motion that is generally along the first path.

Claims

1. A mechanism for actuating a switch and transmitting motion to a system attached to the mechanism, the mechanism comprising:

a first component movable along a first path;

a second component movable in response to movement of the first component, wherein the second component is movable transverse to the first path;

a third component movable along the first path, the third component having a portion for engaging the switch; and

wherein movement of the first component causes the third component to actuate the switch using motion generally along the first path.

2. The mechanism according to claim 1 further comprising a fourth component onto which the switch mounts, the fourth component adapted to pivotably engage the first component and the second component.

3. The mechanism according to claim 2 further comprising a spherical bearing for facilitating the fourth component pivotably engaging at least one of the first component and second component.

4. The mechanism according to claim 2 wherein the third component includes an opening for receiving the fourth component.

5. The mechanism according to claim 1 wherein the transverse motion is generally isolated from the switch.

6. The mechanism according to claim 1 wherein the movement of the first component changes the relative position between the switch and the third component.

7. The mechanism according to claim 1 wherein the third component is attached to the first component.

8. The mechanism according to claim 1 wherein the third component is integral to the first component.

9. The mechanism according to claim 1 wherein the portion for engaging the switch has a radial face.

10. The mechanism according to claim 1 wherein the first component is a brake pedal arm.

11. A mechanism for actuating a switch and transmitting motion to a system component, the mechanism comprising:

a first component movable along a first path between a first position, a second position, and a third position;

a second component movable in response to movement of the first component, wherein the second component engages the system component and is movable angular to the first path;

a third component attached to the first component for movement substantially in the first direction, the third component having a portion for engaging the switch; and

a fourth component on which the switch is mounted, the fourth component connecting the first component, the second component, and the third component,

wherein movement between the first position and the second position actuates the switch and movement between the second position and third position transmits motion to the system component.

12. The mechanism according to claim 11 wherein the fourth component pivotably engages the first component and second component.

13. The mechanism according to claim 12 further comprising a spherical bearing for facilitating the fourth component pivotably engaging at least one of the first component and second component.

14. The mechanism according to claim 11 wherein movement of the first component causes the third component to actuate the switch using motion generally along the first path.

15. The mechanism according to claim 11 wherein the third component is integral to the first component.

16. The mechanism according to claim 11 wherein the portion for engaging the switch has a radial face.

17. The mechanism according to claim 11 wherein the first component is a brake pedal arm.

18. A mechanism for actuating a switch and transmitting motion to a system component, the mechanism comprising:

a pin fixably connected to the switch; and

a force receiving member pivotably connected to a pin, the force receiving member movable along a first path between a first position, a second position, and a third position;

wherein movement of the force receiving member between the first position and second position pivots the pin relative to the force receiving member to change the switch from a first state to a second state, and movement of the force receiving member between the second position and the third position transmits motion to the system component while retaining the switch in the second state.

19. The mechanism according to claim 18 further comprising a connecting member pivotably connected to the pin, the connecting member moving transverse to the first path when the force receiving member moves from the second position to the third position.

20. A mechanism for actuating a switch and transmitting motion to a system component, comprising:

a first component movable along a first path;

a second component attached to the system component, the second component movable transverse to the first path; and

a means for transmitting motion, generally along the first path, to actuate the switch.

21. The mechanism according to claim 20 wherein the means for transmitting motion to actuate the switch includes a pin pivotably engaging the first component and second component.

22. The mechanism according to claim 21 wherein the switch is fixably mounted to the pin.

23. The mechanism according to claim 21 further comprising a spherical bearing for facilitating the pin pivotably engaging at least one of the first and second components.

24. The mechanism according to claim 20 further comprising a switch engaging member fixably attached to the first component.

25. The mechanism according to claim 24 wherein the switch engaging member includes a radial face.

26. A method of actuating a switch and transmitting motion to a system component comprising the steps of:

moving a first component along a first path;

communicating motion from the first component to the switch; and

communicating motion from the first component to the system component, wherein motion transverse to the first path is generally isolated from the switch.

27. The method of claim 26 wherein the system component is a vehicle brake system component.

28. The method of claim 26 wherein communicating motion from the first component to the switch comprises:

pivoting a pin relative to the first component; and

changing the relative position between the switch and a switch engaging member in response to pivoting the pin such that the switch engaging member actuates the switch using motion generally along the first path.

29. The method of claim 28 wherein the switch engaging member is attached to the first component.

30. The method of claim 28 wherein actuating the switch includes depressing a switch plunger.