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Sharpener for an oval pencil

A pencil sharpener, oval-shaped technology, applied in the direction of applications, household utensils, household packaging, etc., can solve the problems of complex structure of pencil sharpener, uneven cutting of pencils, disadvantages, etc.

Inactive Publication Date: 2008-04-30
COMBE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] A common problem with traditional pencil sharpeners of the type described above is that the pencil can only be cut unevenly along the circumference of the top of the pencil during the cutting process
However, this known pencil sharpener is complex in construction and is disadvantageous due to technical manufacturing reasons

Method used

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  • Sharpener for an oval pencil
  • Sharpener for an oval pencil
  • Sharpener for an oval pencil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] In Figures 1, 2 and 5, the pencil sharpener 1 shown in top view, longitudinal section and cross section comprises a metal or plastic pencil sharpener body 2 of the shell type, a guide sleeve for guiding the pencil S tube 3 and a paring knife 4 .

[0030] The sharpener body 2 is substantially wedge-shaped with a flattened wedge top 5 . The sharpener body 2 is provided with a double-walled base wall 7 on a wedge base 6 facing away from the wedge top 5 . A support hole 8 is processed in the bottom wall 7, and the guide sleeve 3 is rotatably arranged in the support hole again (the part of the guide sleeve 3 shielded by the pencil sharpener body 2 is shown by a dotted line in Fig. 1 ) .

[0031]A wall arranged on the wedge slope 9 of the sharpener body 2 serves as a blade holder 10 . The knife holder 10 has a recess 11 into which the sharpening knife 4 is inserted such that it protrudes slightly from the knife holder 10 with a cutting edge 12 through a chip ejection slot ...

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PUM

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Abstract

The sharpener (1) includes a body (2), a guide sleeve (3) and the cutting blade (4). The sleeve has an oval boring (17) defining the pencil guide channel (18). A concave guide contour is formed on an inner surface (14) of the blade holder (10), into which the blade projects. The guide contour and the guide sleeve are arranged so that the axis of the pencil guide channel follows an oval path.

Description

technical field [0001] The present invention relates to a pencil sharpener for oval pencils. Background technique [0002] The pencil sharpener has a sharpener body, a guide sleeve and a sharpener, the guide sleeve is provided with an oval through hole defining a pencil guide channel and the guide sleeve substantially surrounds The axis of the pencil guide channel is rotatably arranged on the pencil sharpener body; On a knife holder of the pen sharpener body, wherein, a concave contour is designed on an inner surface of the knife holder adjacent to the pencil guide channel, and the sharpener with a blade extends into it. [0003] A pencil sharpener of this type is disclosed in German Utility Model DE 7629766U1. In this known sharpener, the guide sleeve is displaceably guided in the sharpener body along a normal direction extending perpendicularly to the axis of the pencil guide channel and approximately perpendicularly to the blade face. A spring-loaded pressing body (hav...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B43L23/08A45D40/08
CPCB43L23/08A45D40/08
Inventor 小弗里茨·卢特根斯
Owner COMBE