Geometrical instruments – Area integrators – Electrical
Patent
1984-11-13
1986-07-22
Stearns, Richard R.
Geometrical instruments
Area integrators
Electrical
33288, G01B 525, G01B 514
Patent
active
046011056
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE ART
The present invention relates to a vehicle measuring instrument used to determine possible deviation of some selected vehicle reference points from respective normal positions. For example, in repair and maintenance of the vehicle by persons such as car mechanics and, more particularly, in a vehicle measuring instrument including a base frame at least longitudinally and transversely extending, three or more suspenders having connectors adapted to be connected to a vehicle at vehicle reference points (the expression "vehicle reference points" used in the present specification and the annexed claims shall not be limited to so-called car body reference points but shall include all locations useful as reference points for the measuring of a vehicle.), said suspenders at least vertically extending and connected to the base frame at three or more positions not lying in a straight line and thereby suspending the base frame from the vehicle, reference portions provided on said base frame, pendulum members serving to indicate perpendicularity under an effect of its own gravity, and said pendulum members having reference point corresponding portions to be positioned in conformity with the respective vehicle reference points and opposing portions to be opposed to said reference portions so that the possible deviations of the vehicle reference points from the respective normal positions may be indicated with the above-mentioned arrangement (the vehicle measuring instrument of such arrangement will be referred to hereinafter as "the vehicle measuring instrument of this type"), characterized in that there are provided angle variable portions permitting angles of the respective suspenders with respect to the base frame to vary in longitudial, transverse and composite directions under an effect of the base frame's own weight depending on an inclination of the vehicle.
BACKGROUND OF THE INVENTION
(a) A well known embodiment of the vehicle measuring instrument of this type as shown in FIG. 1.
There are provided a pair of longitudinally extending frames 1 across which a necessary number of transverse frames 2 extend. Each of the transverse frames 2 is provided on its lower side adjacent opposite ends with sliders 3, one for each end, by which this transverse frame 2 is slidably movable along the longitudinal frames 1. The longitudinal frames 1 and the transverse frames 2 respectively have measuring scales (not shown) and constitute together a base frame 4. Each of the longitudinal frames 1 carries on its upper side a pair of suspenders 6 each provided at its lower end with a slider 5 by which the associated suspender 6 is slidably movable along the associated longitudinal frame 1. Said suspenders 6 vertically extend and are held perpendicularly to the respective longitudinal frames 1. There are provided two holding rods 7 adapted to connect the respective lateral pairs of the suspenders 6 at their upper ends and each of such holding rods 7 is provided with a pair of connectors 8 being laterally slidable along holding rod 7 and mounted via holding rods 7 on associated suspenders 6. The connectors 8 are adapted to be connected to respective vehicle reference points 9a and the base frame 4 is suspended by the suspenders 6 from the vehicle 10.
One or two slider(s) 11 is or are slidably movable along each of the transverse frames 2 and has or have centrally on top surface(s) upwardly pointed pin(s) 13 having its or their upper end(s) defining reference portion(s) 12.
There are provided pendulum members 17 vertically extending and having upper ends as reference point corresponding portions 14 adapted to be connected to vehicle reference points 9b, and 9c, respectively, and lower ends defining pins 16 of which downwardly pointed ends 15 destined to be opposed to the associated reference portions 12. Each of the pendulum members 17 comprises a transparent pipe having a larger diameter and a measuring scale thereon and another pipe having a smaller diameter telescopically assembled so as to be extendible and cont
REFERENCES:
patent: Re31000 (1982-07-01), LeGrand et al.
patent: 3611575 (1971-10-01), Chartier
patent: 3869804 (1975-03-01), Friend
patent: 4242803 (1981-06-01), Dory
patent: 4329784 (1982-05-01), Bjork
patent: 4442608 (1984-04-01), Clausen
Yamazaki Katsunori
Yamazaki Kichisaburo
Yamazaki Yoshihiro
Belsheim Stephen T.
Jeffers Albert L.
Stearns Richard R.
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