Protective device for castor
OwnerPo-Chuan Tsaiinventor
Life of this patent
Estimating the term…
Abstract
A protective device for a castor includes a mounting ring, and a driving piece secured on the mounting ring. The mounting ring has an outer periphery formed with a breakable portion which is located beside the driving piece. The driving piece has a first end extending from the mounting ring and a second end formed with a pull tab. When the mounting ring is released by tearing the breakable portion, the mounting ring is directly driven by the driving piece to remove from each of the two rollers of the castor. Thus, the user only needs to apply a single action to pull the pull tab of the driving piece so as to remove the protective device from the castor completely so that the protective device can be removed from the castor easily and quickly.
Claims12
A protective device for a castor comprising:
- a mounting ring for mounting to the castor;
- a driving piece secured on the mounting ring;
- and
- a positioning plate secured on the mounting ring and detachably connected with the driving piece, wherein:
- the mounting ring has an outer periphery formed with a breakable portion located beside the driving piece;
- the breakable portion allowing the mounting ring to be removed from the castor;
- the driving piece has a first end extending from the mounting ring and a second end formed with a pull tab;
- the positioning plate has a first end extending from the mounting ring and a second end formed with a plurality of connecting blocks detachably connected with the pull tab of the driving piece;
- the first end of the driving piece is formed with a connecting portion connected with the mounting ring;
- the connecting portion of the driving piece has a first side connected with the breakable portion of the mounting ring;
- the first side of the connecting portion of the driving piece is detachable from the mounting ring through the breakable portion of the mounting ring;
- the connecting portion of the driving piece has a second side fixedly combined with the mounting ring;
- the second side of the connecting portion of the driving piece is non-detachable from the mounting ring;
- and
- the driving piece is combined with the mounting ring without detachment.
Dependencies are inferred from the claim text.