Abstract: A locking device for an extension pipe of a vacuum cleaner is provided that has a holder having first and second connection parts formed at both ends, and a locking hole in correspondence to a fixing hole formed in the extension pipe. The first and the second connection parts are connected to the operation handle and the extension pipe, respectively, and the locking hole is formed at a side of the second connection part. A cap is connected to an outer surface of the second connection part of the holder, and has an elastic locking member integrally formed therein and elastically biased toward the locking direction.

Abstract: Disclosed is a locking device for extension pipe of a vacuum cleaner which can be easily operated, especially in separating the extension pipe supporting holder, and be compactly manufactured since the components do not require much space. The locking device according to the present invention comprises a holder connected to an operation handle and having a locking hole formed on one side to correspond to a fixing hole of the operation handle, and a locking/unlocking lever having a hook portion movable into and out of the locking hole, and a button portion formed opposite to the hook portion along the diameter, the locking/unlocking lever movable between a locked position and an unlocked position, a locked position in which the hook portion is inserted into the locking hole, and an unlocked position in which the hook portion is escaped out of the locking hole. The button portion is disposed such that a force for unlocking the combination is applied in the same direction as the holder separating direction.

Abstract: A locking device for an extension pipe of a vacuum cleaner, which requires a reduced number of parts and simple assembling, includes a holder having a first and a second connection parts formed at both ends, and a locking hole in correspondence to a fixing hole formed in the extension pipe, the first and the second connection parts being connected to the operation handle and the extension pipe, respectively, and the locking hole being formed at a side of the second connection part, a cap connected to an outer surface of the second connection part of the holder, and comprising an elastic locking member integrally formed therein and elastically biased toward the locking direction, the elastic locking member having a hook protruded from the inside of the holder through the locking hole into the second connection part to thereby lock the extension pipe, and an unlocking lever pivotally disposed on the outer surface of the holder to be pivoted on an axis, and comprising an operation end being connected with a free

Abstract: Disclosed is a locking device for extension pipe of a vacuum cleaner which can be easily operated, especially in separating the extension pipe supporting holder, and be compactly manufactured since the components do not require much space. The locking device according to the present invention comprises a holder connected to an operation handle and having a locking hole formed on one side to correspond to a fixing hole of the operation handle, and a locking/unlocking lever having a hook portion movable into and out of the locking hole, and a button portion formed opposite to the hook portion along the diameter, the locking/unlocking lever movable between a locked position and an unlocked position, a locked position in which the hook portion is inserted into the locking hole, and an unlocked position in which the hook portion is escaped out of the locking hole. The button portion is disposed such that a force for unlocking the combination is applied in the same direction as the holder separating direction.

Abstract: A grill assembly of a cyclone dust collecting apparatus for a vacuum cleaner capable of improving dust collecting efficiency of the vacuum cleaner by preventing the filth, drawn thereinto with the air, from being directly drawn into a grill without forming a whirling air current. The grill assembly is disposed at an upper part of an air discharging passage of a cyclone body that generates the whirling air current from the air drawn thereinto and separates filth from the whirling air by a centrifugal force. The grill assembly prevents the filth from being drawn into a vacuum-generating device of the vacuum cleaner and comprises a cylindrical grill body having upper and lower openings, with the outer diameter of the upper part being greater than the outer diameter of the lower part, and a plurality of passages formed at the cylindrical grill body.

Abstract: A grill assembly of a cyclone dust collecting apparatus for a vacuum cleaner capable of improving the capability of dust collecting of the vacuum cleaner by reducing the amount of the filth drawn into a vacuum generating device through a grill. The grill assembly, disposed at the upper part of the air discharging passage of a cyclone body that separates filth from a whirling air current by a centrifugal force for the whirling air current of the drawn air for preventing the filth from being drawn into the vacuum generating device of the vacuum cleaner, includes a grill body and a plurality of passages disposed therein. The extended line of the center line of the passages forms an acute angle with a stream line of the whirling air current.

Abstract: A grill assembly of a cyclone dust collecting apparatus for a vacuum cleaner capable of improving the capability of dust collecting of the vacuum cleaner by reducing the amount of the filth drawn into a vacuum generating device through a grill. The grill assembly, disposed at the upper part of the air discharging passage of a cyclone body that separates filth from a whirling air current by a centrifugal force for the whirling air current of the drawn air for preventing the filth from being drawn into the vacuum generating device of the vacuum cleaner, includes a grill body and a plurality of passages disposed therein. The extended line of the center line of the passages forms an acute angle with a stream line of the whirling air current.

Abstract: A grill assembly of a cyclone dust collecting apparatus for a vacuum cleaner capable of improving dust collecting efficiency of the vacuum cleaner by preventing the filth, drawn thereinto with the air, from being directly drawn into a grill without forming a whirling air current. The grill assembly is disposed at an upper part of an air discharging passage of a cyclone body that generates the whirling air current from the air drawn thereinto and separates filth from the whirling air by a centrifugal force. The grill assembly prevents the filth from being drawn into a vacuum-generating device of the vacuum cleaner and comprises a cylindrical grill body having upper and lower openings, with the outer diameter of the upper part being greater than the outer diameter of the lower part, and a plurality of passages formed at the cylindrical grill body.