CH247730A - Mechanical pencil. - Google Patents
Mechanical pencil.Info
- Publication number
- CH247730A CH247730A CH247730DA CH247730A CH 247730 A CH247730 A CH 247730A CH 247730D A CH247730D A CH 247730DA CH 247730 A CH247730 A CH 247730A
- Authority
- CH
- Switzerland
- Prior art keywords
- clamp
- sheath
- mechanical pencil
- lead
- branches
- Prior art date
Links
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K21/00—Propelling pencils
- B43K21/02—Writing-core feeding mechanisms
- B43K21/04—Writing-core feeding mechanisms with the writing-cores brought into position by gravity
Landscapes
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Description
Porte-mine. L'objet .de la présente invention est un porte-mine comprenant une pince à au moins deux branches, contenant au moins une mine et entourée d'une gaine, caractérisé par le fait que la gaine forme le manche du porte mine et que le serrage de la pince sur la mine est effectué par un déplacement axial de la gaine sur la pince, la gaine se bloquant sur la pince en même temps que la mine dans cette dernière.
Le dessin annexé représente, à titre d'exemple, une forme d'exécution du porte mine faisant l'objet de ,l'invention.
La. fig. 1 en est une coupe axiale et la fi-. 2 une vue en plan.
Pans la forme d'exécution représentée, le porte-mine comprend une pince 1 à deux branches 2 et 3, entourée d'une gaine 4 en métal recouvert d'une couche électrolytique d'oxyde d'aluminium formant manche creux. La partie arrière non fendue 6 de la pince est cylindrique et s'ajuste dans le manche de manière coulissante. La partie avant de la pince renferme une mine 5 dont le serrage est assuré par le déplacement axial de la gaine 4 dans la direction de la flèche f de manière à ce qu'elle s'engage sur une partie renflée des deux branches 2 et 3.
Pour utiliser le porte-mine décrit, il suffit ;de glisser U gaine axialement, -en arrière pour libérer la mine, st en avant pour la serrer dans la position voulue. La pince en métal poli dépasse -de la gaine vers l'arrière et l'avant et contribue à l'effet décoratif de la gaine.
En variante, une seule branche de. la pince seulement pourra. présenter un renfle ment. On pourra aussi prévoir une pince à plus de deux branches.
Mechanical pencil. The object of the present invention is a mechanical pencil comprising a clamp with at least two branches, containing at least one lead and surrounded by a sheath, characterized in that the sheath forms the handle of the mechanical pencil and that the clamping of the clamp on the lead is effected by an axial displacement of the sheath on the clamp, the sleeve locking on the clamp at the same time as the lead in the latter.
The appended drawing represents, by way of example, an embodiment of the mechanical pencil forming the subject of the invention.
Fig. 1 is an axial section and the fi. 2 a plan view.
Pans the embodiment shown, the mechanical pencil comprises a clamp 1 with two branches 2 and 3, surrounded by a metal sheath 4 covered with an electrolytic layer of aluminum oxide forming a hollow handle. The unsplit rear part 6 of the clamp is cylindrical and fits in the handle in a sliding manner. The front part of the clamp contains a lead 5, the clamping of which is ensured by the axial displacement of the sheath 4 in the direction of the arrow f so that it engages on a swollen part of the two branches 2 and 3 .
To use the mechanical pencil described, all you have to do is: slide the sheath axially, backward to release the lead, and forward to tighten it in the desired position. The polished metal clip protrudes back and front from the sleeve and contributes to the decorative effect of the sleeve.
Alternatively, a single branch of. the clamp only will be able. present a bulge. It is also possible to provide a clamp with more than two branches.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH247730T | 1946-01-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH247730A true CH247730A (en) | 1947-03-31 |
Family
ID=4466404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH247730D CH247730A (en) | 1946-01-10 | 1945-09-17 | Mechanical pencil. |
Country Status (1)
| Country | Link |
|---|---|
| CH (1) | CH247730A (en) |
-
1945
- 1945-09-17 CH CH247730D patent/CH247730A/en unknown
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