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US 12,700,723 B2Granted
Retractable cable device
AssigneeCheng Uei Precision Industry Co., Ltd.
InventorsKuang-Mo Chien, Chien-Chung Wang
Life of this patent
Estimating the term…
Abstract
A retractable cable device includes a shell, a cable disposed in the shell, a pulley disposed in the shell, a spring assembly disposed in the shell, and a cover covered to the shell. The shell has a bottom board. Two sides of an inner surface of the bottom board extend upward to form two first slide rails. The cable is mounted around the pulley. Two sides of a top surface and two sides of a bottom surface of the pulley are recessed inward to form a plurality of locating grooves. The locating grooves of the bottom surface of the pulley guide the first slide rails of the shell. Two sides of a bottom surface of the cover extend downward to form two second slide rails. The locating grooves of the top surface of the pulley guide the second slide rails of the cover.
Claims20
A retractable cable device, comprising:
- a shell having a bottom board, a front board and a rear board, the front board and the rear board being disposed to a front end and a rear end of the bottom board, respectively, two sides of an inner surface of the bottom board extending upward to form two first slide rails, a middle of the inner surface of the bottom board being recessed downward to form a first sliding groove, the first sliding groove being disposed between the two first slide rails;
- a cable disposed in the shell, two opposite ends of the cable being exposed out of the front board and the rear board, respectively;
- a pulley disposed in the shell, the cable being mounted around the pulley, two sides of a top surface and two sides of a bottom surface of the pulley being recessed inward to form a plurality of locating grooves, the locating grooves of the bottom surface of the pulley guiding the first slide rails of the shell, two middles of the top surface and the bottom surface of the pulley extending outward to form two protruding portions, respectively, the protruding portion of the bottom surface of the pulley being slidable in the first sliding groove, a rear end of the pulley extending rearward to form a tail portion, one side surface of the tail portion extending sideward to form a protrusion;
- a spring assembly disposed in the shell, the spring assembly being disposed between the pulley and the rear board, one end of the spring assembly being fastened to the protrusion of the pulley;
- and
- a cover covered to a top of the shell, two sides of a bottom surface of the cover extending downward to form two second slide rails, a middle of the bottom surface of the cover being recessed inward to form a second sliding groove, the second sliding groove being disposed between the two second slide rails, the locating grooves of the top surface of the pulley guiding the second slide rails of the cover, the protruding portion of the top surface of the pulley being slidable in the second sliding groove.
3 more elements
A retractable cable device, comprising:
- a shell having a bottom board, a front end of the bottom board having a front board, a rear end of the bottom board having a rear board, and two opposite sides of the bottom board having two side boards, two sides of an inner surface of the bottom board extending upward to form two first slide rails, the two first slide rails being extended between the front board and the rear board, a middle of the inner surface of the bottom board being recessed downward to form a first sliding groove, the first sliding groove being disposed between the two first slide rails, the inner surface of the bottom board having a plurality of locating pillars, the plurality of the locating pillars being disposed along the two side boards, and the plurality of the locating pillars keeping distances from the two side boards, the inner surface of the bottom board having a fastening pillar;
- a cover covered to a top of the shell, two sides of a bottom surface of the cover extending downward to form two second slide rails, a middle of the bottom surface of the cover being recessed inward to form a second sliding groove, the second sliding groove being disposed between the two second slide rails, the two second slide rails being corresponding to the two first slide rails, the second sliding groove being corresponding to the first sliding groove;
- a pulley disposed in the shell, two sides of each of a top surface and a bottom surface of the pulley being recessed inward to form two locating grooves, the two locating grooves of the bottom surface of the pulley guiding the two first slide rails, the two locating grooves of the top surface of the pulley guiding the two second slide rails, two middles of the top surface and the bottom surface of the pulley extending outward to form two protruding portions, respectively, the protruding portion of the bottom surface of the pulley being slidable in the first sliding groove, the protruding portion of the top surface of the pulley being slidable in the second sliding groove;
- a spring assembly disposed in the shell, the spring assembly being disposed between the pulley and the rear board, the spring assembly having a shaft center and a coil spring, the shaft center being connected with the bottom board, the coil spring being mounted around the shaft center, one end of the coil spring stretching close to the fastening pillar, and the one end of the coil spring being connected with the pulley;
- and
- a cable disposed in the shell, the cable being mounted around the pulley, two opposite ends of the cable being exposed out of the front board and the rear board, respectively, a tail end of the cable being clamped in a clearance which is formed among the plurality of the locating pillars and one side board, a free end of the cable passing frontward through the clearance, the free end of the cable being bent rearward, and then the free end of the cable being bent frontward and being mounted around the pulley, and the free end of the cable being further exposed out of the shell.
3 more elements
A retractable cable device, comprising:
- a shell, having:
- a front board;
- a rear board opposite to the front board;
- a bottom board, the front board and the rear board being disposed to a front end and a rear end of the bottom board, respectively, two sides of an inner surface of the bottom board extending upward to form two first slide rails, the two first slide rails being extended between the front board and the rear board, a middle of the inner surface of the bottom board being recessed downward to form a first sliding groove, the first sliding groove being disposed between the two first slide rails;
- two side boards disposed to two opposite sides of the bottom board, respectively;
- a plurality of locating pillars protruded upward from the inner surface of the bottom board, the plurality of the locating pillars being disposed in the shell, and the plurality of the locating pillars being positioned between the front board and the rear board;
- two first fastening pillars positioned in the shell and close to the front board;
- two second fastening pillars positioned in the shell and close to the rear board;
- and
- a third fastening pillar positioned in the shell, and the third fastening pillar being positioned between the two second fastening pillars and the rear board;
- a cover covered to a top of the shell, two sides of a bottom surface of the cover extending downward to form two second slide rails, a middle of the bottom surface of the cover being recessed inward to form a second sliding groove, the second sliding groove being disposed between the two second slide rails, the two second slide rails being corresponding to the two first slide rails, the second sliding groove being corresponding to the first sliding groove;
- a pulley disposed in the shell, the pulley being straightly slid between the front board and the rear board, two sides of each of a top surface and a bottom surface of the pulley being recessed inward to form two locating grooves, the two locating grooves of the bottom surface of the pulley guiding the two first slide rails, the two locating grooves of the top surface of the pulley guiding the two second slide rails, two middles of the top surface and the bottom surface of the pulley extending outward to form two protruding portions, respectively, the protruding portion of the bottom surface of the pulley being slidable in the first sliding groove, the protruding portion of the top surface of the pulley being slidable in the second sliding groove, a rear end of the pulley extending rearward to form a tail portion, one side surface of the tail portion extending sideward to form a protrusion;
- a spring assembly disposed in the shell, the spring assembly being disposed between the pulley and the rear board, the spring assembly having:
- a hollow shaft center mounted around the third fastening pillar;
- and
- a coil spring mounted around the shaft center, one end of the coil spring stretching close to the two second fastening pillars, the one end of the coil spring being located between the two second fastening pillars, and the one end of the coil spring being connected with the protrusion of the pulley;
- and
- a cable disposed in the shell, two opposite ends of the cable being exposed out of the front board and the rear board, respectively, one end of the cable being positioned close to the two first fastening pillars, the one end of the cable being located between the two first fastening pillars, the cable having:
- a still bending portion mounted around the plurality of the locating pillars, the still bending portion being disposed among the plurality of the locating pillars and one side board;
- and
- a movable bending portion mounted around the pulley.
18 more elements
Dependencies are inferred from the claim text.