Sleeve with cushion spring for mechanical pencil

Description

1.-2. Sleeve with cushion spring for mechanical pencil

1.1 : Perspective

1.2 : Front

1.3 : Top

1.4 : Right

1.5 : Left

1.6 : Cross-sectional

1.7 : Cross-sectional

1.8 : View showing state of use

1.9 : Enlarged view showing state of use

2.1 : Perspective

2.2 : Front

2.3 : Top

2.4 : Right

2.5 : Left

2.6 : Cross-sectional

2.7 : Cross-sectional

2.8 : View showing state of use

2.9 : Enlarged view showing state of use

Each article is a sleeve formed with a cushion spring is disposed in a mechanical pencil; when a writing lead is loaded with a writing pressure, the cushion spring is compressed, and an excessive writing pressure is released to prevent the writing lead from breaking; parts shown by broken lines do not constitute a claimed design; thin lines represent contours showing shadows only, and do not represent ornamentations nor decorations; views 1.8, 1.9, 2.8 and 2.9 form no part of the claimed design; back views are omitted because they are mirror images of the front views; bottom views are omitted because they are identical to the top views; cross-sectional views 1.6, 1.7, 2.6, and 2.7 show the cross-sections of views 1.2, 1.3, 2.2 and 2.3, respectively.

Claims

The ornamental design for a sleeve with cushion spring for mechanical pencil, as shown and described.