Patent ID: 11865676
Assignee: nan
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 14:
15. An adjustable wrench comprising;
a head portion comprising a fixed jaw and a moving jaw; and
a handle portion attached to the head portion by a pivot pin extending through an elongate pin hole defined by the handle portion,
wherein the handle portion comprises a levering end and a head end that is provided with gear teeth that engage a rack gear provided on the moving jaw for moving the moving jaw relative to the fixed jaw,
wherein the head end is provided with ratcheting locking teeth engageable with pawl teeth provided on a pawl that is fixed to the head portion to form a locking mechanism for preventing spreading of the fixed and moving jaws,
wherein the handle portion has a length defining a first direction that is a lengthways direction of the handle portion said pin hole and pivot pin extend in a second direction that is transverse to said first direction and said pin hole is elongated in a third direction that is transverse to said first and second directions so that said pivot pin can move across said handle portion in said third direction along said elongate pin hole, whereby when the handle portion is turned in a drive direction, engagement of the gear teeth on the head end with the rack gear causes said moving jaw to move towards said fixed jaw and the handle portion to pivot around a point of engagement of said gear teeth and said rack gear into and within the confines of the elongate pin hole to propel the ratcheting locking teeth into engagement with the pawl teeth to lock the fixed and moving jaws.