US 12,220,792 B2
Clamping tool with display device for tightening conditions
Marco Corsi, Paderno Dugnano (IT); and Massimiliano Cattaneo, Carate Brianza (IT)
Assigned to ATLAS COPCO INDUSTRIAL TECHNIQUE AB, Stockholm (SE)
Appl. No. 17/775,806
Filed by ATLAS COPCO INDUSTRIAL TECHNIQUE AB, Stockholm (SE)
PCT Filed Dec. 17, 2020, PCT No. PCT/IB2020/062091
§ 371(c)(1), (2) Date May 10, 2022,
PCT Pub. No. WO2021/124184, PCT Pub. Date Jun. 24, 2021.
Claims priority of application No. 102019000024736 (IT), filed on Dec. 19, 2019.
Prior Publication US 2022/0388133 A1, Dec. 8, 2022
Int. Cl. B25B 23/142 (2006.01); B25B 23/00 (2006.01)
CPC B25B 23/1425 (2013.01) [B25B 23/0035 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A clamping tool comprising:
a display device configured to display tightening conditions,
a body, containing control circuits and a processing electronic unit having at one end a handle for gripping by an operator making the clamping, and on the other end an arm,
said arm comprising at its free end a seat wherein can be alternatively pluggable a plurality of inserts suitable for engaging the tool with a corresponding type and/or dimension of a mechanical member on which the tool is destined to operate to carry out a clamping operation,
sensor means being provided on said arm suitable for detecting tightening conditions exerted on said mechanical member,
said display device is controlled by said electronic processing unit and comprises an annular support connected to the tool, to which a plurality of lighting groups are associated, provided along a circle arch long the along a ring and each one comprising at least two lighting points, the groups being substantially equidistant each other along the ring, said points being destined to lighten when the clamping is finished,
wherein the processing electronic unit switches on in each point of the plurality of points a progressive sequence with all the points switched off before starting the clamping operation until having all the points switched on when the clamping is finished so as to simulate an arch of a circle extending from a point up to its maximum dimension with all the points switched on,
wherein the lighting groups are four arches, each one having a dimension slightly lower than 90°, and
wherein the annular support is provided between the handle and the body of the tool.