Fastening device
OwnerChin-Chu Cheninventor
Life of this patent
Estimating the term…
Abstract
A fastening device including a case unit, a knob and an engaging unit is provided. The case unit includes a wall forming a receiving space and a plurality of mounting teeth. The knob covers on the case unit. The engaging unit is within the receiving space. The engaging unit corresponds to the mounting teeth and is selectively coupled to the knob. The knob is switched between a first position and a second position. When the knob is in the first position to couple to the engaging unit, the engaging unit is linked up with the knob and the engaging unit is engaged with the mounting teeth to prohibit the knob from rotating in a first direction, and when the knob is in the second position to disengage from the engaging unit, the engaging unit does not prohibit the knob from rotating in the first direction.
Claims12
A fastening device, comprising:
- a case unit, comprising:
- a wall forming a receiving space;
- a partition protruding radially from the wall to separate the receiving space into an upper chamber and a lower chamber;
- and
- a plurality of mounting teeth located at the upper chamber;
- a spool located at the lower chamber and comprising a flexible clamping portion;
- a positioning shaft inserted into the spool to couple to the flexible clamping portion, the positioning shaft having an axial direction;
- a knob covering on the case unit and connected to the positioning shaft;
- and
- an engaging unit located at the upper chamber, the engaging unit corresponding to the mounting teeth and selectively coupled to the knob;
- wherein the knob is switched between a first position and a second position along the axial direction, the positioning shaft is linked up with the knob, when the knob is in the first position to couple to the engaging unit, the engaging unit is engaged with one of the mounting teeth to prohibit the spool from rotating in a first direction, and when the knob is in the second position to disengage from the engaging unit, the engaging unit is engaged with one of the mounting teeth and does not prohibit the spool from rotating in the first direction.
A fastening device, comprising:
- a case unit, comprising:
- a wall forming a receiving space;
- and
- a plurality of mounting teeth located at the wall and facing toward the receiving space;
- a knob covering on the case unit;
- and
- an engaging unit within the receiving space, the engaging unit corresponding to the mounting teeth and selectively coupled to the knob;
- wherein the knob is switched between a first position and a second position along an axial direction, when the knob is in the first position to couple to the engaging unit, the engaging unit is linked up with the knob and the engaging unit is engaged with one of the mounting teeth to prohibit the knob from rotating in a first direction, and when the knob is in the second position to disengage from the engaging unit, the engaging unit is engaged with one of the mounting teeth and does not prohibit the knob from rotating in the first direction.
Dependencies are inferred from the claim text.