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A tape measure housing has first and second sidewalls and a peripheral wall. A metal post is extends between the first and second sidewalls and includes an elongate column portion disposed along an axis and a base portion. The base portion includes a plurality of ribs extending generally normal to t

A tape measure housing has first and second sidewalls and a peripheral wall. A metal post is extends between the first and second sidewalls and includes an elongate column portion disposed along an axis and a base portion. The base portion includes a plurality of ribs extending generally normal to the axis. The column portion includes a slot. A fastener may extend through the first sidewall and mate to the column portion. The second sidewall includes a boss having a recess configured to accept the ribs such that the material forming the boss interstitially interengages with the ribs. A fastener may extend through the second sidewall and mate to the base portion. The anchoring portion of the post may include a non-circular flange extending generally normal to the axis, with the recess being configured to accept the flange.

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A tape measure housing has first and second sidewalls and a peripheral wall. A metal post is extends between the first and second sidewalls and includes an elongate column portion disposed along an axis and a base portion. The base portion includes a plurality of ribs extending generally normal to t

A tape measure housing has first and second sidewalls and a peripheral wall. A metal post is extends between the first and second sidewalls and includes an elongate column portion disposed along an axis and a base portion. The base portion includes a plurality of ribs extending generally normal to the axis. The column portion includes a slot. A fastener may extend through the first sidewall and mate to the column portion. The second sidewall includes a boss having a recess configured to accept the ribs such that the material forming the boss interstitially interengages with the ribs. A fastener may extend through the second sidewall and mate to the base portion. The anchoring portion of the post may include a non-circular flange extending generally normal to the axis, with the recess being configured to accept the flange. 3, wherein said elastic means consist of a thrust spring mounted on said pin and lying between said seat and said arm. 5. A device as claimed in claim 1, wherein said means comprise a projecting arm which at its free end carries the clamp and at its opposite end is connected to the slider, between said arm and said slider there being interposed a coupling system for selecting and locking the position of the arm relative to the slider. 6. A device as claimed in claim 2, wherein said system comprises a square member fixed to the slider and positioned concentric with the seat for said pin, and a facing flat wall provided on said arm and interrupted by a recess shaped as a V with a 90° angle at its vertex, the flat part and the recessed part of said wall being arranged to make contact respectively with a face and with a corner of said square member, as required. 7. A device as claimed in claim 1, wherein said device is shaped and dimensioned such as not to interfere with the ground when coupled to the rim of a wheel positioned on the ground. 8. A device as claimed in claim 7, wherein said device is shaped and dimensioned such as to enable out-of-plane and off-centre operations or checks to be effected on small-diameter wheels resting on the ground. 9. A device as claimed in claim 1, wherein said device is shaped and dimensioned such as to be able to carry the attitude checking sensor or head without assistance, for any of the nominal diameters of wheel rims currently available.