Tool and method for measuring force associated with engaging a child restraint anchorage

• US 7,126,462 B2
• Filed: 11/18/2004
• Issued: 10/24/2006
• Est. Priority Date: 11/18/2004
• Status: Active Grant

• Current Assignee: Ford Global Technologies, LLC (Ford Motor Company)
• Original Assignee: Ford Global Technologies, LLC (Ford Motor Company)
• Inventors: Schleif, Kurt, Michel, Robert
• Primary Examiner(s): TWEEL JR, JOHN ALEXANDER
• Application Number:
  US10/904,606
• Publication Number:
  US 20060103515A1
• Time in Patent Office: 705 Days
• Field of Search: 340/438, 340/665, 340/667, 340/668, 340/686.1, 340/686.5, 180/268, 738/624.51, 702/41
• US Class Current: 340/438
• CPC Class Codes: B60N 2/2887 Fixation to a transversal anchorage bar, e.g. isofix

Abstract

A tool for measuring force associated with engaging an anchorage of a child restraint anchorage system of a motor vehicle. The tool includes a force measuring device, an engagement arm having a slot, and a guide mechanism. The engagement arm transmits force to the measuring device when the anchorage is seated within the slot.

Claims

1. A tool for measuring force associated with engaging an anchorage of a child restraint anchorage system of a motor vehicle, the tool comprising:

a measuring device adapted to measure a force;

an engagement arm adapted to receive the anchorage; and

a guide mechanism connecting the measuring device and the engagement arm;

wherein the engagement arm transmits force to the measuring device when the engagement arm contacts the anchorage.

2. The tool of claim 1 wherein the measuring device is a compression force gauge.

3. The tool of claim 1 wherein the guide mechanism is a linear guide rail assembly configured to allow the engagement arm to move relative to at least a portion of the measuring device.

4. The tool of claim 1 wherein the engagement arm further comprises a slot and a sensor disposed in the slot for detecting when the anchorage is seated within the slot.

5. The tool of claim 4 further comprising an indicator for indicating when the anchorage is seated within the slot.

6. The tool of claim 5 wherein the engagement arm further comprises a chamber configured to receive a battery adapted to power the indicator.

7. The tool of claim 6 wherein the indicator is adapted to create an audible sound.

8. The tool of claim 6 wherein the indicator is a light.

9. The tool of claim 1 wherein the guide mechanism further comprises a limit pin and the engagement arm further comprises a limit pin slot adapted to receive the limit pin, the limit pin and limit pin slot cooperating to limit movement of the engagement arm.

10. The tool of claim 1 further comprising a handle assembly disposed proximate the measuring device.

11. A tool for measuring an installation force associated with engaging an anchorage of a child restraint anchorage system of a motor vehicle, the tool comprising:

a gauge adapted to measure a compressive force;

an engagement arm having a slot adapted to receive the anchorage; and

a linear guide rail assembly having a rail disposed proximate the gauge and a carriage adapted to move along the rail and disposed proximate the engagement arm;

wherein the engagement arm exerts force on the gauge when the anchorage contacts the slot.

12. The tool of claim 11 further comprising first and second handle assemblies attached to the gauge, the first handle assembly having a first handle portion disposed above the gauge for supporting the tool and the second handle assembly having a second handle portion for exerting a force to seat the slot against the anchorage.

13. The tool of claim 11 wherein the rail further comprises a limit pin and the engagement arm further comprises a limit pin slot adapted to receive the limit pin, the limit pin and limit pin slot cooperating to limit movement of the engagement arm.

14. The tool of claim 13 wherein the carriage is disposed between the gauge and the limit pin.

15. The tool of claim 11 wherein the gauge further comprises an input sensor configured to receive force from the engagement arm when the anchorage is seated within the slot.

16. The tool of claim 11 further comprising a sensor disposed proximate the slot, the sensor being adapted to detect seating of the anchorage against the slot.

17. The tool of claim 11 wherein the slot has a linear configuration.

18. A method for measuring force associated with engaging an anchorage of a child restraint anchorage system of a motor vehicle with a force measuring tool, the force measuring tool having a gauge adapted to measure a force and a guide member connected to the gauge and having a slot for receiving the anchorage, the method comprising:

positioning the slot to receive the anchorage;

applying force to the measuring tool to seat the anchorage against the slot; and

measuring the force exerted between the slot and the anchorage.

19. The method of claim 18 wherein the force measuring tool further comprises a sensor for detecting when the anchorage is seated within the slot and an indicator associated with the sensor, and wherein the step of applying force further comprises applying force until the indicator indicates that the sensor detects seating of the anchorage against the slot.

20. The method of claim 18 further comprising comparing the force measured by the gauge to a threshold value and generating a reject signal if the force is greater than the threshold value.