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US 8,820,128 B2Granted
Anti-picking device for lock and key thereof
OwnerShih-Te Liuinventor
Life of this patent
Estimating the term…
Abstract
An anti-picking device for a lock includes a casing, a rotating body, a key guiding seat and a linking member. The casing has a compartment. The rotating body is rotatably received in the compartment and has an actuated member adapted to rotate the rotating body relatively to the casing and an insertion hole axially connecting two end faces of the rotating body. The key guiding seat is received in the compartment and has an arc guiding groove and a receiving hole. The arc guiding groove communicates with the receiving hole, and the receiving hole penetrates through the key guiding seat in the axial direction. The linking member is received in the receiving hole of the key guiding seat and has an engaging part at a first end, while a second end of the linking member extends out of the receiving hole.
Claims15
An anti-picking device for a lock, comprising:
- a casing having a first end, a second end and a compartment, wherein the first and second ends serve as two opposite ends of the casing in an axial direction, the first end has a first opening while the second end has a second opening, and the first and second openings communicate with the compartment;
- a rotating body rotatably received in the compartment, wherein the rotating body has a first end face facing the first opening, a second end face facing the second opening, an actuated member adapted to rotate the rotating body about a central axis of the casing within a rotation range, and an insertion hole extending from the first end face to the second end face in the axial direction to form a third opening in the first end face and a fourth opening in the second end face;
- a key guiding seat received in the compartment and having an arc guiding groove and a receiving hole, wherein the arc guiding groove communicates with the receiving hole, and the receiving hole penetrates through the key guiding seat in the axial direction;
- and
- a linking member rotatably received in the receiving hole of the key guiding seat and having an engaging part at a first end while a second end of the linking member extends away from the rotating body and out of the receiving hole,
- wherein the third opening keeps in an opening range of the first opening when the rotating body rotates within the said rotation range for the insertion hole to communicate with or be apart from the receiving hole,
- wherein the rotating body is rotatable about the central axis of the casing, wherein the casing and the key guiding seat are non-rotatable about the central axis of the casing, and wherein the first end of the casing is flush with the first end face of the rotating body.
4 more elements
An anti-picking device for a lock, comprising:
- a casing having a first end, a second end and a compartment, wherein the first and second ends serve as two opposite ends of the casing in an axial direction, wherein the first end has a first opening while the second end has a second opening, and wherein the first and second openings communicate with the compartment;
- a rotating body rotatably received in the compartment, wherein the rotating body has a first end face facing the first opening, a second end face facing the second opening, an actuated member adapted to rotate the rotating body about a central axis of the casing within a rotation range, and an insertion hole extending from the first end face to the second end face in the axial direction to form a third opening in the first end face and a fourth opening in the second end face;
- a key guiding seat received in the compartment and having an arc guiding groove and a receiving hole, wherein the arc guiding groove communicates with the receiving hole, and wherein the receiving hole penetrates through the key guiding seat in the axial direction;
- a linking member rotatably received in the receiving hole of the key guiding seat and having an engaging part at a first end while a second end of the linking member extends away from the rotating body and out of the receiving hole,
- wherein the third opening keeps in an opening range of the first opening when the rotating body rotates within the said rotation range for the insertion hole to communicate with or be apart from the receiving hole;
- and
- an outer shield disposed at the second end of the casing and able to slide relatively to the casing, wherein the second end of the linking member penetrates the outer shield, and wherein the outer shield has a notch communicating with the arc guiding groove of the key guiding seat.
4 more elements
An anti-picking device for a lock, comprising:
- a casing having a first end, a second end and a compartment defining a central axis, wherein the first and second ends serve as two opposite ends of the casing in an axial direction along the central axis, wherein the first end has a first opening while the second end has a second opening, wherein the compartment and the first opening each have a cylindrical inner periphery of a circular shape with a center on the central axis, and wherein the first and second openings communicate with the compartment;
- a rotating body rotatably received about the central axis in the compartment, wherein the rotating body has a first end face facing the first opening, a second end face flush with the second opening, an actuated member adapted to rotate the rotating body about the central axis of the casing within a rotation range, and an insertion hole extending from the first end face to the second end face in the axial direction to form a third opening in the first end face and a fourth opening in the second end face;
- a key guiding seat non-rotatably received in the compartment and having an arc guiding groove and a receiving hole, wherein the arc guiding groove communicates with the receiving hole, and wherein the receiving hole penetrates through the key guiding seat in the axial direction;
- and
- a linking member rotatably received in the receiving hole of the key guiding seat and having an engaging part at a first end while a second end of the linking member extends away from the rotating body and out of the receiving hole,
- wherein the third opening keeps in an opening range of the first opening when the rotating body rotates within the said rotation range for the insertion hole to communicate with or be apart from the receiving hole.
3 more elements
Dependencies are inferred from the claim text.