Brush provided with retractable bristles to facilitate removal of tangled hair strands

Abstract

A brush includes a brush body, a plurality of bristles, an operating member, and a biasing member. The brush body includes an upper wall, a lower wall that is aligned with the upper wall along a transverse direction, and that is movable relative to the upper wall, and a guiding member that extends upward from the lower wall through the upper wall. The bristles are mounted on a bristle-mounting surface of the upper wall, and are extendible through the bristle-extension apertures in the lower wall. The operating member is connected to the guiding member, and is operable to move the lower wall relative to the upper wall between upper and lower positions. The biasing member restores the lower wall from the lower position to the upper position.

1 . A brush comprising: 
 a brush body including an upper wall, a lower wall that is aligned with said upper wall along a transverse direction, and that is movable relative to said upper wall between upper and lower positions, and a guiding member that extends upward from said lower wall through said upper wall, said upper wall having a bristle-mounting surface, said lower wall being formed with a plurality of bristle-extension apertures;    a plurality of bristles that are mounted on said bristle-mounting surface of said upper wall, and that extend through said bristle-extension apertures;    an operating member disposed above and spaced apart from said upper wall, and connected directly to said guiding member so as to be co-movable with said lower wall relative to said upper wall in the transverse direction, and to move said lower wall from the upper position to the lower position when pressed downward in the transverse direction; and    a biasing member for restoring said lower wall from the lower position to the upper position.    
     
     
         2 . The brush as claimed in  claim 1 , wherein said biasing member is disposed between and abuts against said upper wall and said operating member.  
     
     
         3 . The brush as claimed in  claim 1 , wherein said bristle-extension apertures are in the form of parallel elongated slots, and said bristles are arranged in rows that correspond to said elongated slots.  
     
     
         4 . The brush as claimed in  claim 3 , wherein said upper wall of said brush body is formed with two guiding slots, said guiding member of said brush body having two guiding plates that extend from said lower wall through said guiding slots respectively, said operating member being connected to said guiding plates.  
     
     
         5 . The brush as claimed in  claim 4 , wherein said upper wall of said brush body is formed with a protruding base, said base being formed with a recess that is aligned with and that opens toward said operating member, said operating member having a bottom surface that is formed with an annular protrusion aligned with said recess, said biasing member extending into said recess and said annular protrusion.  
     
     
         6 . The brush as claimed in  claim 5 , wherein said base is further formed with a stud that extends into said recess, said biasing member having a lower end sleeved on said stud.