US 12,138,748 B2
Ratchet mechanism and ratchet pawl
Darius S. Adibi, Lyndhurst, OH (US)
Assigned to MATCO TOOLS CORPORATION, Stow, OH (US)
Filed by MATCO TOOLS CORPORATION, Stow, OH (US)
Filed on Dec. 21, 2021, as Appl. No. 17/557,217.
Prior Publication US 2023/0191563 A1, Jun. 22, 2023
Int. Cl. B25B 13/46 (2006.01)
CPC B25B 13/463 (2013.01) 17 Claims
OG exemplary drawing
 
1. A ratchet head comprising:
a recessed housing comprising a ratchet gear engaged with a ratchet pawl where gear teeth of the ratchet gear fully engage a first set of teeth of the ratchet pawl simultaneously with a substantially flat first stop wall of the ratchet pawl fully contacting a first flat sidewall of the housing while a second set of teeth of the ratchet pawl, separated from the first set of teeth of the ratchet pawl by a recessed area, is fully disengaged from the gear teeth of the ratchet gear and a substantially flat second stop wall of the ratchet pawl is fully disconnected from a second flat sidewall of the housing and a length of the substantially flat second stop wall extends into and overlaps a lever;
where a position of the ratchet pawl within the housing is configured to change within the housing and relative to the gear teeth by way of the lever extending into the housing;
where movement of the lever is limited by engagement of the entire substantially flat first stop wall of the ratchet pawl with the first flat sidewall of the housing when the substantially flat first stop wall of the ratchet pawl is fully contacting a first flat sidewall of the housing, the substantially flat second stop wall of the ratchet pawl is fully disconnected from the second flat sidewall of the housing, and the length of the substantially flat second stop wall extends into and overlaps the lever; and
where the movement of the lever is additionally limited by engagement of the entire substantial flat second stop wall of the ratchet pawl with the second flat sidewall of the housing when the substantially flat second stop wall is fully contacting a second flat sidewall of the housing, the substantially flat first stop wall of the ratchet pawl is fully disconnected from the first flat sidewall of the housing, and a length of the substantially flat first stop wall extends into and overlaps the lever.