Adhesive tape cutting device

Abstract

An adhesive tape cutting device includes a sleeve body having a top wall that has a tape slot defined by a slot-defining wall having a rear edge, front and rear end portions, and a protruded portion disposed between the rear edge and the front end portion. The tape slot separates the rear end portion and the protruded portion. The protruded portion extends outwardly and radially, through a tangent line passing through the rear edge, from one side of the tangent line to the other side of the tangent line. The protruded portion has a planar abutting surface, inclined away from the adhesive tape roll in a forward direction, and having opposite front and rear ends. The rear end is disposed on one side of a first reference line connecting the rear edge and the front end. The front end is disposed on one side of a second reference line connecting the rear edge and a tip of said cutting member.

1 . An adhesive tape cutting device comprising:
 a sleeve body adapted to be sleeved on an adhesive tape roll and defining a channel for extension of the adhesive tape roll therethrough, said sleeve body having a top wall that has a tape slot in spatial communication with said channel for extension of an unrolled end portion of an adhesive tape of the adhesive tape roll therethrough, said tape slot being defined by a slot-defining wall having a rear edge, said top wall having front and rear end portions and a protruded portion disposed between said rear edge of said slot-defining wall and said front end portion of said top wall, said protruded portion protruding outwardly with respect to said channel, said rear end portion and said protruded portion being separated by said tape slot, said protruded portion extending outwardly and radially through a tangent line, which is tangential relative to a center of the adhesive tape roll and which passes through said rear edge of said slot-defining wall, from one side of said tangent line to the other side of said tangent line that is distal from the adhesive tape roll compared to said one side of said tangent line, said protruded portion having a planar abutting surface that is disposed on said other side of said tangent line, that is inclined away from the adhesive tape roll in a forward direction, and that has opposite front and rear ends, said planar abutting surface having a substantially uniform width, said rear end of said planar abutting surface being disposed on one side of a first reference line connecting said rear edge of said slot-defining wall and said front end of said planar abutting surface, said one side of said first reference line being distal from the adhesive tape roll compared to another side of said first reference line, said front end of said planar abutting surface being disposed on one side of a second reference line connecting said rear edge of said slot-defining wall and a tip of said cutting member, said one side of said second reference line being distal from the adhesive tape roll compared to another side of said second reference line; and   a cutting member mounted on said front end portion of said top wall of said sleeve body.   
     
     
         2 . The adhesive tape cutting device as claimed in  claim 1 , wherein said rear end portion of said top wall defines a tape slit extending therethrough to divide said rear end portion into two halves, said tape slit being in spatial communication with said tape slot for extension of the unrolled end portion of the adhesive tape of the adhesive tape roll therethrough and into and through said tape slot. 
     
     
         3 . The adhesive tape cutting device as claimed in  claim 1 , wherein said first reference line and said tangent line cooperate to define an angle therebetween that ranges from 25 to 75 degrees. 
     
     
         4 . The adhesive tape cutting device as claimed in  claim 1 , wherein said slot-defining wall further has a front edge opposite to said rear edge, said protruded portion of said top wall of said sleeve body further having an upright surface that extends from said rear end of said planar abutting surface toward said front edge of said slot-defining wall. 
     
     
         5 . The adhesive tape cutting device as claimed in  claim 1 , wherein said sleeve body further has two opposite side walls extending downwardly and respectively from two opposite sides of said top wall, and two opposite bottom walls extending respectively from bottom ends of said side walls toward each other and adapted to anchor on an inner wall of the adhesive tape roll.