Ratcheting open jaw wrench

Patent metadata

Field	Value
Publication number	US-11351659-B2
Application number	US-201916373926-A
Country	US
Kind code	B2
Filing date	Apr 3, 2019
Priority date	Apr 3, 2019
Publication date	Jun 7, 2022
Grant date	Jun 7, 2022

Abstract

A ratcheting wrench includes a first jaw with a first jaw insert configured to move relative to the first jaw and a first spring configured to bias the first jaw insert in a first direction. The wrench also includes a second jaw with a second jaw insert configured to move relative to the second jaw and a second spring configured to bias the second jaw insert in a second direction opposite the first direction. When the first jaw insert moves relative to the first jaw and the second jaw insert moves relative to the second jaw, a space between the first jaw and the second jaw increases. This allows the jaws of the wrench to slip over corners of a fastener to achieve a ratcheting effect.

First claim

What is claimed is:

1. An adjustable, ratcheting wrench comprising:
a fixed jaw comprising a fixed jaw insert slot;
a first jaw insert comprising:
a first flange disposed within the fixed jaw insert slot and configured to move within the fixed jaw insert slot,
a first elongated hole formed in the first flange of the first jaw insert, and
a first compression spring disposed in the first elongated hole;

a first dowel disposed in the fixed jaw extending into the first elongated hole of the first flange, the first compression spring abutting against the first dowel to bias the first jaw insert in a first direction;
an adjustable jaw comprising an adjustable jaw insert slot;
a second jaw insert comprising:
a second flange disposed within the adjustable jaw insert slot and configured to move within the adjustable jaw insert slot,
a second elongated hole formed in the second flange of the second jaw insert, and
a second compression spring disposed in the second elongated hole;

a second dowel disposed in the adjustable jaw extending into the second elongated hole of the second flange, the second compression spring abutting against the second dowel to bias the second jaw insert in a second direction opposite the first direction;
a handle portion connected to the fixed jaw and the adjustable jaw, the handle portion comprising:
a grip,
a rocker arm extending from the grip,
a gearing mechanism disposed within the handle portion, the gearing mechanism being actuated by the rocker arm, and the gearing mechanism being linked to the adjustable jaw to move the adjustable jaw towards the fixed jaw, and
a push button configured to release the adjustable jaw from at least a portion of the gearing mechanism to allow the adjustable jaw to move away from the fixed jaw.

2. The wrench of claim 1 , wherein a third direction defines the movement of the adjustable jaw towards and away from the fixed jaw and the first and second direction are oblique relative to the third direction.

3. The wrench of claim 2 , wherein when the fixed and adjustable jaws are in contact with a fastener and the handle portion is torqued in a first rotational direction, the first dowel and the second dowel preventing the first jaw insert and the second jaw insert from moving thereby transferring torque to the fastener, and wherein when the fixed and adjustable jaws are in contact with the fastener and the handle portion is torqued in a second rotational direction opposite the first rotational direction, a reaction force from the fastener causes the first jaw insert and the second jaw insert to slide within the fixed jaw insert slot and the second jaw insert slot in the second direction and the first direction respectively, thereby allowing the fixed and adjustable jaws to slip over corners of the fasteners.

4. The wrench of claim 1 , wherein the adjustable jaw comprises teeth and the gearing mechanism comprises a worm gear configured to drive the adjustable jaw via the teeth.

5. The wrench of claim 4 , wherein the worm gear is connected to a pinion gear via a belt, the pinion gear is driven by center gear connected to a one-way clutch, and the one-way clutch is driven by the actuation of the rocker arm.

6. The wrench of claim 5 , wherein the push button releases the center gear from the one-way clutch allowing a coil spring to drive the center gear, the adjustable jaw moving towards the fixed jaw when the center gear is connected to the one-way clutch, and the adjustable jaw moving away from the fixed jaw when the center gear is driven by the coil spring.

7. A ratcheting wrench comprising:
a first jaw comprising:
a first jaw insert configured to move relative to the first jaw, and
a first spring configured to bias the first jaw insert in a first direction;

a second jaw comprising:
a second jaw insert configured to move relative to the second jaw, and
a second spring configured to bias the second jaw insert in a second direction opposite the first direction, and

a handle portion connected to the first jaw and the second jaw, the first direction being away from the handle portion and the second direction being toward the handle portion,
wherein when the first jaw insert moves relative to the first jaw and the second jaw insert moves relative to the second jaw, a space between the first jaw and the second jaw increases.

8. The wrench of claim 7 , wherein the first jaw is a fixed jaw, and the second jaw is an adjustable jaw that is configured to move towards and away from the fixed jaw.

9. The wrench of claim 8 , further comprises a worm gear configured to drive the adjustable jaw towards and away from the fixed jaw.

10. The wrench of claim 7 , wherein
the first jaw comprises a first jaw insert slot, the first jaw insert comprises a first flange, and the first flange is disposed within the first jaw insert slot, and
the second jaw comprises a second jaw insert slot, the second jaw insert comprises a second flange, and the second flange is disposed within the second jaw insert slot.

11. A ratcheting wrench comprising:
a first jaw comprising:
a first jaw insert configured to move relative to the first jaw, and
a first spring configured to bias the first jaw insert in a first direction;

a second jaw comprising:
a second jaw insert configured to move relative to the second jaw, and
a second spring configured to bias the second jaw insert in a second direction opposite the first direction,
wherein when the first jaw insert moves relative to the first jaw and the second jaw insert moves relative to the second jaw, a space between the first jaw and the second jaw increases,
the wrench further comprising

a handle portion connected to the first jaw and the second jaw, the handle portion comprising:
a grip,
a rocker arm extending from the grip,
a gearing mechanism disposed within the handle portion, the gearing mechanism being actuated by the rocker arm, and the gearing mechanism being linked to the second jaw to move the second jaw towards the first jaw.

12. The wrench of claim 11 , further comprising a push button configured to release the second jaw from at least a portion of the gearing mechanism to allow the second jaw to move away from the first jaw.

13. The wrench of claim 12 , wherein the second jaw comprises teeth and the gearing mechanism comprises a worm gear configured to drive the second jaw via the teeth.

14. The wrench of claim 13 , wherein the worm gear is connected to a pinion gear via a belt, the pinion gear is driven by center gear connected to a one-way clutch, and the one-way clutch is driven by the actuation of the rocker arm.

15. The wrench of claim 14 , wherein the push button releases the center gear from the one-way clutch allowing a coil spring to drive the center gear, the second jaw moving towards the first jaw when the center gear is connected to the one-way clutch, and the second jaw moving away from the first jaw when the center gear is driven by the coil spring.

16. A ratcheting wrench comprising:
a first jaw comprising:
a first jaw insert configured to move relative to the first jaw, and
a first spring configured to bias the first jaw insert in a first direction;

a second jaw comprising:
a second jaw insert configured to move relative to the second jaw, and
a second spring configured to bias the second jaw insert in a second direction opposite the first direction,
wherein when the first jaw insert moves relative to the first jaw and the second jaw insert moves relative to the second jaw, a space between the first jaw and the second jaw increases,
wherein th

Assignees

• Js Products Inc

Inventors

• Chen Chungeng

Classifications

• B25B13/14 Primary

  by rack and pinion, worm or gear · CPC title

• B25B13/22 Primary

  by ratchet action or toothed bars · CPC title

• B25B13/46

  of the ratchet type, for providing a free return stroke of the handle · CPC title