Abstract: The present invention relates to a device for measuring the distance between two substantially parallel surfaces of an object, the said device comprising an electronic apparatus with a Hall effect sensor. The device comprises a mechanical decoupling system which isolates the object to be measured from the measuring apparatus so as to eliminate interactions that can disrupt the measurement. The invention also relates to the application of this device to the measurement of the thickness of a layer of rubber for a tyre, and more particularly to the measurement of the remaining thickness of a tread.

Abstract: A ground attachment system (1) for a tire characteristics detection unit (15) comprises an attachment plate (2) comprising a plurality of recesses (3) distributed over the surface of the attachment plate, a plurality of frustoconical clamping rings (4), and a plurality of cylindrical guide tunnels (5) arranged in the detection unit (15), the clamping rings (4) and the guide tunnels (5) each comprising a complementary conical portion (6, 7) converging towards the attachment plate (2) when the ring (4) is in the clamping position in a tunnel (5).

Abstract: A fastening system for fastening an electronic device (2) in a measurement housing (1), comprising: an electronic-device holder (10) designed to accommodate an electronic measurement device (2); and a prestressing ring (20) that is able to cooperate with said holder (10) for assembly and comprises a plurality of prestressing beams (22, 25) designed to bear on said electronic device (2) when said ring is assembled together with the holder, said electronic device (2) being inserted into said holder (10).

Abstract: A ground-fixing system for a tire characteristics sensor housing (10) comprises: a fixing plate (1) comprising a plurality of recesses (2) of a given profile distributed over the surface of the fixing plate; and a plurality of fixing pins (3) of substantially corresponding profile, similarly distributed on a fixing face of said sensor housing (10), the shapes and dimensions of the recesses (2) and of the pins (3) for fixing being provided so as to allow, on the one hand, in a position of insertion of the pins, engagement of the latter in said recesses and, on the other hand, in a locking position of the pins, fixing of the sensor housing (10) on the fixing plate (1).

Abstract: A ground attachment system (1) for a tire characteristics detection unit (15)7 comprises an attachment plate (2) comprising a plurality of recesses (3) distributed over the surface of the attachment plate, a plurality of frustoconical clamping rings (4), and a plurality of cylindrical guide tunnels (5) arranged in the detection unit (15), the clamping rings (4) and the guide tunnels (5) each comprising a complementary conical portion (6, 7) converging towards the attachment plate (2) when the ring (4) is in the clamping position in a tunnel (5).

Abstract: A ground-fixing system for a tire characteristics sensor housing (10) comprises: a fixing plate (1) comprising a plurality of recesses (2) of a given profile distributed over the surface of the fixing plate; and a plurality of fixing pins (3) of substantially corresponding profile, similarly distributed on a fixing face of said sensor housing (10), the shapes and dimensions of the recesses (2) and of the pins (3) for fixing being provided so as to allow, on the one hand, in a position of insertion of the pins, engagement of the latter in said recesses and, on the other hand, in a locking position of the pins, fixing of the sensor housing (10) on the fixing plate (1).

Abstract: A fastening system for fastening an electronic device (2) in a measurement housing (1), comprising: an electronic-device holder (10) designed to accommodate an electronic measurement device (2); and a prestressing ring (20) that is able to cooperate with said holder (10) for assembly and comprises a plurality of prestressing beams (22, 25) designed to bear on said electronic device (2) when said ring is assembled together with the holder, said electronic device (2) being inserted into said holder (10).