The ornamental design for a pencilsharpener, as shown and described.
1. Pencil sharpener
1.1 : Perspective
1.2 : Front
1.3 : Back
1.4 : Top
1.5 : Bottom
1.6 : Left
1.7 : Right
1.8 : Sectional view
1.9 : Perspective view of the main body
1.10 : Front view of the main body
1.11 : Back view of the main body
1.12 : Top view of the main body
1.13 : Bottom view of the main body
1.14 : Left view of the main body
1.15 : Right view of the main body
1.16 : Exploded
The article is used for sharpening a cosmetic pencil such as an eyebrow pencil, a pencil-type eyeliner and pencil-type lip liner, and for sharpening a pencil used for designs; the cover is transparent; the parts shown in dotted lines do not form part of the claimed design; the broken lines having alternating long and short segments define bounds of the claimed design and form no part thereof; thin lines shown on the surface of the design in the front view, the top view, the right view, the left view, the perspective view, the sectional view numbered 1.8, the front view of the main body, the top view of the main body, the right view of the main body, the left view of the main body and the perspective view of the main body illustrate the shape of a three-dimensional surface; the reproduction 1.8 is a cross-sectional view sectioned vertically at the position of approximately one-fifth from the left end of the width in the front view numbered 1.2; the upper component shown in the exploded view numbered 1.16 is the cover.