FI56792C - BLYERTSSPETSARE - Google Patents

Description

raSPl [B] (11) NOTICE OF ADVERTISEMENT

LJ '> UTLÄGGNINGSSKRIFT 00/92 C (45) Patent tty 10 A' 930

Patent * / (51) Kv.ik. * / Int.ci. * B 43 L 23/08 ENGLISH - FI N LAN D (21) P «.nttlh» k «mu * -PatenttiwBknlng 1586/73 ( 22) Hakamlspiivt - Ansttknlngtdag l6.05 .73 (23) Initial cloud - Glltlgheudag l6.05.73 (41) Become public - Blivlt offentllg 21 pp

Patent and Registration Office .... ..........

'(44) Date of issue and date of issue. -

Patent- oeh registerstyrelsen Ansökan utlagd och utl.skrlftan publicerad 31.12.79 (32) (33) (31) Pyydetty etuoikeu * —Begird priority 20.05.72

Federal Republic of Germany-Förbundsrepubliken Tyskland (DE) P 2224888.0 (71) T. Paul Möbius Metallwarenfabrik, Gerberei 19, 8520 Erlangen,

Federal Republic of Germany-Förbundsrepubliken Tyskland (DE) (72) Werner Möbius, Erlangen, Federal Republic of Germany-Förbundsrepubliken Tyskland (DE) (74) Leitzinger Oy (54) Pencil sharpener - Blyertsspetsare

The invention relates to a pencil sharpener having a chip-receiving housing and attached to a housing cover from which the sharpener protrudes into the housing.

When sharpening with such a known device as described above, a housing is taken in one hand and a pen to be sharpened in the other, which is introduced into the sharpening part. In this case, especially in the case of incompetent or rapid handling, the pen may move transversely to its longitudinal axis. In this case, lead is usually broken, which gets stuck in the sharpening part, in which case the sharpening must be performed again. This is cumbersome and time consuming and causes premature wear of the pen.

The object of the invention is to eliminate the above-mentioned drawback in pencil sharpeners of the above-mentioned type provided in an industrially simple and inexpensive manner. At the very least, the aim is to reduce the risk of the pen blade breaking.

The invention is characterized in that the lid is made of an elastic material and that the lid has one or more grooves, bends or ridges between the point of attachment of the sharpener and the edge of the cover, e.g. rotatable, which resiliently receive transverse forces transverse to the longitudinal direction of the pen.

2,66792

The lid formed according to the invention can be manufactured industrially in a simple manner and at low cost. The lids are most preferably made of resilient plastic by molding or injection molding in a manner appropriate to their purpose. Due to the dimensioning and structure, the resilience of the lid in the above-mentioned transverse direction can be arranged in such a way that the forces generated in the transverse direction are received flexibly and thus substantially prevent or at least reduce the risk of such a rupture of the pencil tip: on the other hand.

Other features and advantages of the invention will become apparent from the following description of several embodiments taken in conjunction with the accompanying drawings, in which Figure 1 shows a first embodiment of the invention in longitudinal section. Dry Figure 2 shows the same from above. Figures 3 to 6 show several embodiments of a lid in cross section.

In the embodiment according to FIGS. The cover 2 has an opening 5 for inserting a pencil into the sharpening part. In this case, the longitudinal axis of the pen 12 is marked in the drawing with dotted lines parallel to the central longitudinal axis 6 of the housing. If the sharpening part I4 is, as shown in this embodiment, exactly in the middle of the base 2 and the housing 1, the longitudinal axis of the pen coincides with the longitudinal axis 6.

In Figure 1, the forces A and B are indicated transversely to the longitudinal axis, and in order to avoid or reduce the detrimental effect of these forces, the cover is made to absorb the forces in this direction. For this purpose, the lid is made of a resilient material and, in the embodiment shown in Figs. In addition, the groove is in the shape of a circumferential ring.

Instead of the above, several such grooves, one or more corrugations (as shown by reference numeral 8 in Fig. 3) or folds 9 (Fig. M

as well as other similar forms. If a single groove, fold or 1 ·· i 3 5 * 792 ridge has been used, it is recommended to arrange it according to the dry 1 close to the edge of the base, as this is particularly advantageous when the lid is made of plastic by the injection molding method. It is also advantageous to arrange the ridges 8 and folds 9 of Figures 3 and k in the form of a closed ring running around the cover.

Figure 5 also shows a cover made of a resilient material with an upwardly directed curvature 10. As a result, the transversely described transverse forces can also be captured. In addition, according to Fig. 6, the cover made of elastic material may have a weakened cross-section at one or more points 11.

Claims (4)

A pencil sharpener with a chip-receiving housing (1) attached to a housing cover (2) from which the sharpener protrudes into the housing, characterized in that the cover (2) is of elastic material and the cover has a point of attachment of the sharpener (U) (3) and one or more grooves (7) »bends (9) or ridges (8) between the lid edge attached to the housing (1), for example rotatable, which resiliently receive the compressive forces generated transversely to the longitudinal direction of the pen inserted in the sharpener (U). Sharpener according to Claim 1, characterized in that there is a groove (7) in the vicinity of the edge of the lid. Sharpener according to Claim 1, characterized in that the cover has a plurality of adjacent bends (9). U. A sharpener according to any one of the preceding claims, characterized in that the grooves, bends or ridges (7 ~ 9) form closed rings running around the cover (2). Sharpener according to one of the preceding claims, characterized in that the cover (2) preferably has a weakened cross-section at an annular circumferential position.