Manually tightened drill chuck
AssigneeZhe Jiang San Ou Machinery Co.LTD
InventorZhou Wenhua
Life of this patent
Estimating the term…
Abstract
A manually tightened drill chuck includes a drill body, a nut, a front sleeve and a rear sleeve. The front sleeve is provided on the front end of the drill body with the nut being provided in the middle. A decorative sleeve is mounted on the front end of the drill body with an external peripheral surface of the nut being housed in an inner sleeve by shrink fit. At least one key groove is located in the inner wall of the front sleeve. A key cooperates with the key groove. At least one locating member is provided in the lower end of the key that includes a hole. The front sleeve further defines at least one protrusion that corresponds to the position of the hole for snapping into the hole. Accordingly, the stability of the front sleeve and the rear sleeve without radial vibration is achieved.
Claims12
A manually tightened drill chuck, said drill chuck comprising:
- a drill body;
- a nut;
- a front sleeve and a rear sleeve, said front sleeve being provided on a front end of said drill body, said nut being provided in a middle of said drill body;
- a decorative sleeve being mounted on the front end of said drill body;
- wherein an external peripheral surface of said nut is housed in an inner sleeve by shrink fit with at least one key groove being located in an inner wall of said front sleeve, and a key cooperating with said key groove being defined in a lower end of an inner sleeve, said key being located inside said key groove;
- and
- at least one locating member being provided in a lower end of said key, said locating member includes a hole, and said front sleeve defines further at least one projection corresponding to the position of the hole wherein the projection may be snapped in said hole.
A manually tightened drill chuck comprising:
- a drill body;
- a nut;
- a front sleeve positioned on a front end of said drill body with said nut being provided in substantially a middle portion of said drill body, said front sleeve includes at least one projection extending therefrom;
- an external peripheral surface of said nut being housed in an inner sleeve by shrink fit;
- at least one key groove being located in an inner wall of said front sleeve with a key cooperating with said key groove being defined in a lower end of an inner sleeve;
- and
- at least one locating member being provided in a lower end of said key, said locating member including a hole, and said at least one projection of said front sleeve corresponding to the position of the hole wherein the projection may be snapped in said hole.
A manually tightened drill chuck comprising:
- a body;
- a nut;
- a front sleeve being provided on a front end of said body with said nut being provided in substantially a middle portion of said body;
- an external peripheral surface of said nut being housed in an inner sleeve by shrink fit;
- at least one key groove is located in an inner wall of said front sleeve with a key cooperating with said key groove being defined in a lower end of said inner sleeve, said key being located inside said key groove;
- at least one locating member includes a hole with the front sleeve defining at least one projection corresponding to the position of the hole wherein the projection may be snapped in said hole for securing enabling torque transmission.
Dependencies are inferred from the claim text.