US 12,030,166 B2
Force-limiting and damping device
Jui-Yuan Shih, Changhua County (TW)
Filed by Jui-Yuan Shih, Changhua County (TW)
Filed on Aug. 31, 2020, as Appl. No. 17/007,537.
Claims priority of application No. 108134075 (TW), filed on Sep. 20, 2019.
Prior Publication US 2021/0086336 A1, Mar. 25, 2021
Int. Cl. B25D 1/12 (2006.01)
CPC B25D 1/12 (2013.01) [B25D 2250/005 (2013.01); B25D 2250/085 (2013.01); B25D 2250/371 (2013.01)] 33 Claims
OG exemplary drawing
 
1. A force-limiting and damping device comprising:
a body, being an elongated shaft and having
a front end;
a rear end;
a connecting segment formed on and protruding from the front end of the body and having
a top side;
a bottom side;
an external surface; and
a mounting hole formed through the top side and the bottom side of the connecting segment; and
a holding segment formed on the rear end of the body and being opposite the connecting segment;
a tapping element connected to the body to move relative to the connecting segment and having
a mounting segment movably connected to the mounting hole of the connecting segment;
a tapping segment disposed on an end of the mounting segment below the connecting segment; and
a fixing segment connected to the mounting segment and abutting the connecting segment;
a shock-absorbing element mounted on the mounting segment, abutting the connecting segment of the body and the tapping segment of the tapping element, and having a preset compression force; and
wherein when a tapping force is smaller than the preset compression force of the shock-absorbing element, the tapping segment generates an instant rebound, and when the tapping force is larger than the preset compression force of the shock-absorbing element, the tapping segment generates a delayed rebound;
a limiting module mounted between the body and the tapping element and having
a sleeve element formed on and protruding from the bottom side of the connecting segment and having a through hole formed through the sleeve element and communicating with the mounting hole of the connecting segment;
a positioning seat formed on a connecting position between the mounting segment and the tapping segment, and disposed below the sleeve element at a spaced interval; and
a force-limiting element non-contacted with the shock-absorbing element;
wherein the force-limiting element is mounted on the mounting segment between the sleeve element and the positioning seat;
wherein the force-limiting and damping device has at least two-stage force-limiting reminding effect when in use, a first stage of force identification is determined by whether the shock-absorbing element is compressed between the connecting segment and the tapping segment, and a second stage of force identification is determined by whether the force-limiting element is compressed between the connecting segment and the tapping segment.