CH251667A - Pencil sharpening machine. - Google Patents

Pencil sharpening machine.

Info

Publication number
CH251667A
CH251667A CH251667DA CH251667A CH 251667 A CH251667 A CH 251667A CH 251667D A CH251667D A CH 251667DA CH 251667 A CH251667 A CH 251667A
Authority
CH
Switzerland
Prior art keywords
blades
pencil
cutting
blade
sharpening machine
Prior art date
Application number
Other languages
French (fr)
Inventor
Mueller Alexandre
Tavannes Machines Co S A
Original Assignee
Mueller Alexandre
Tavannes Machines Co S A
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mueller Alexandre, Tavannes Machines Co S A filed Critical Mueller Alexandre
Publication of CH251667A publication Critical patent/CH251667A/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B43WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43LARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L23/00Sharpeners for pencils or leads
    • B43L23/02Sharpeners for pencils or leads with gearing

Landscapes

  • Lubricants (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Luminescent Compositions (AREA)

Description

Machirre ä tailler les Crayons. Tool for sharpening pencils.

0n connait des machirres ä tailler les ,Crayons dorrt la partie coupante, constituee par une ou deux fraises, toürnte par 1'inter mediaire d'engrenages aetionnes ä la main par une poignee dc manivelle. Machirres for cutting pencils are known for the cutting part, consisting of one or two cutters, rotated by the intermediary of gears aetioned by hand by a crank handle.

Outre les incommodites amenees par n'importe quel actionnemen@ manuel, Ces ma chi.nes ont les desavantages serieux de rendre impossible un guidage du Crayon ä la main. Il fallait les munir d'un dispositif ä ressort pour appuyer 1e crayo$ contre la partie cou pante, afin d'avoir les mains libres pour 1'actionnement de la machirre. La fin de 1'operation de tadle devait etre indiquee par une butee contre laquelle la mine venait s'appuyer pour opposer une plus grande re sistance au ressört et pour sous@traire la mine ä, 1'action de la partie coupante, Jans 1e cas oiz la resistance depassait la force du ressört. Cette hypothese n'est remplie qu'avec des mines dunes. Les mines douces, soigneus,ement pointues, que 1e ressort presse contre la bu tee, ne lui opposent qu'une resis-tance si fai pas eire remarquee, et par la suite, la mine ble, que la fin de 1'operation de tadle ne peut reste soumise ä 1'aetion de la partie coupante. 0n n'a pas trouve, jusqu'ici, un dispositif qui pourrait remplacer la butee et indiquer la fin de 1'operation de taille ind6pendam ment de la durete de la mine. Le-seul moyen pour determiner exactement la fin de 1'ope ration de taille pour parer ä une surtaille et, par suite, ä une perte de mattere, consiste ä appuyer ä la main 1e Crayon contre la par- Apart from the inconveniences caused by any manual actuation, these machines have the serious disadvantages of making it impossible to guide the pencil by hand. They had to be provided with a spring device to press the pencil against the cutting part, in order to have the hands free for the operation of the jaw. The end of the tadle operation was to be indicated by a stop against which the mine rested to oppose greater resistance to the spring and to subtract the mine from the action of the cutting part, Jans 1st case the resistance exceeded the force of the spring. This hypothesis is fulfilled only with dune mines. The soft, neat, ly pointed leads, which the spring presses against the butt, offer only a resistance so unnoticed, and subsequently, the blue lead, that the end of the operation of tadle cannot remain subject to the action of the cutting part. No device has so far been found which could replace the stop and indicate the end of the cutting operation independently of the hardness of the mine. The only way to determine exactly the end of the cutting operation to prevent an overcut and, consequently, a loss of material, consists in pressing the Pencil against the part by hand.

tie coupante. La personne faisant cette ope ration Sera ä chaque moment en mesure de constater un aecroissement de 1a. resistance qui indique la fin de la taille. Cela etait im possible avec les machirres connues du genre considere, detionnees ä la main. cutting tie. The person performing this operation will be able to observe an increase in blood pressure at any time. resistance which indicates the end of the cut. This was impossible with the known jaws of the genus considered, detioned by hand.

La machirre ä tailier les cräyons selon 1'invention remedie ä Ces inconvenients. Elle est earacterisee en ce qu'elle comporte au moins une laure coupante fixee sur un arbre porte-lames mü par un moteur. The pencil sharpening machine according to the invention overcomes these drawbacks. It is characterized in that it comprises at least one cutting blade fixed on a blade shaft driven by a motor.

Pour obtenir une Bonne coupe et un affn tage soigne du Crayon, an peut avoir recours a deux lames ooupantes dopt les tranchants sont places 1e long de generatrices d'un 6vi dement conique pratique en bout de Faxe pürte-lames. Ces lameo sieront avantageuse ment disposees symetriquement par rapport ä Faxe de l'evidement conique, en coupant cet axe au sommet du cöne. L'actionnement par un moteur a pour consequence de Bonner main libre ä la personne qui se sert de la ma chirre, pour lui permettre d'introduire ä la main 1e Crayon et de,constater sans difficulte la fin de Foperation de taille ä Faide de Fac croissement de la resistance de la mine. To obtain a good cut and a careful sharpening of the pencil, one can have recourse to two cutting blades, the cutting edges are placed along the generators of a practical conical recess at the end of the blade purifier. These blades will advantageously be arranged symmetrically with respect to the axis of the conical recess, intersecting this axis at the apex of the cone. The actuation by a motor has the consequence of leaving a free hand to the person who uses the machine, to allow him to introduce the pencil by hand and to see without difficulty the end of the cutting operation with the help of the Fac increase of the resistance of the mine.

Le dessin represente, ä titre d'exemple, une forme d'egecution de la machirre selon 1'invention. The drawing represents, by way of example, a form of execution of the jaw according to the invention.

La fig. 1 est une coupe axiale ä travers 1e bäti, 1e moteur et laxe porte-lames etant dessines en elevation. fig. 1 is an axial section through the frame with the motor and blade shaft drawn in elevation.

La fig. 2 est une coupe suivant la ligne II-II de la fig. 1, et fig. 2 is a section along the line II-II of FIG. 1, and

la fig. 3 montre Faxe porte-lames, avec une coupe axiale partielle. fig. 3 shows Faxe bladeholders, with a partial axial section.

Le bäti 1 a la forme dun T renverse, au montant duquel est fixe, au moyen de deux vis 4, 1e moteur B. L'extremite de Farbre moteur 5 diiigee conüe ce montant est pour vue d'un filetage 6 faisant saillie ä travers une ouverture du montant. Elle Porte la Par tie coupante 2, qui consiste essentiellement en i un axe porte-lames 7 avec les lames coupan teo B. Sur 1e taut est passe un couvercle 12. L'espace libre saus la Partie coupante est re serve ä un tiroir 13 servant ä recueillir les copeaux et autres, d6chets provenant de la i taille des Crayons. The frame 1 has the shape of an inverted T, to the upright of which is fixed, by means of two screws 4, the motor B. an opening of the amount. It Carries the Cutting Part 2, which essentially consists of a blade holder axis 7 with the cutting blades B. On the top is a cover 12. The free space under the Cutting Part is reserved for a drawer 13 used to collect shavings and other waste from pencil sharpening.

La fig. 2 fait voir 1e detail de la fixation sur Faxe porte-lames 7 des deux lames cou pantes 8 au moyen de deux vis 9. fig. 2 shows the first detail of the fixing on the blade holder 7 of the two neck blades 8 by means of two screws 9.

Dans la fig. 3, an a represente 1'evide ment conique 10 et. les deux. lames, coupantes disposees sym6triquement par rapport ä Faxe du cöne par 1e sommet duquel pa.ssent les tranchants des lames en formant Ih-meme une butee 11. In fig. 3, an has represented the conical recess 10 and. both. blades, cutting arranged symmetrically with respect to the taper of the cone through the top of which pass the cutting edges of the blades, forming Ih-even a stop 11.

Pour se servir de la machine, an introduit 1e Crayon dans 1'evidement couique 10, en poussant ä fand. 0n 1e soumet 'a Faction des lames coupantes jusqu'ä ce que la mine arrive sur la butee 11. L'accroiesement de la r6sis- To use the machine, one inserts the pencil into the recess 10, pushing in fand. It is subjected to the action of the cutting blades until the mine reaches the stop 11. The increase in resistance

tance se fait seutir independamment de la douceur de la mine, et 1e Crayon peut etre retire avant d'etre surtaille. tance can be cut regardless of the smoothness of the lead, and the pencil can be removed before it is oversharpened.

L'une des lames pourrait pr6senter des encoches 1e lang du tranchant, afin de briser les copeaux. One of the blades could have notches on the edge of the blade, in order to break the shavings.

Claims (3)

REVENDICATION Machire ä tailler les erayons, earaeteris6e en ce qu'elle compörte au meins une Dame coupante fixee sur un arbre porte-lames mü par un moteur. SOUS-REVENDICATIONS 1. Machire ä tailler les Crayons selon la revendication, caracterisee en ce quelle com porte deux lames coupantes, dopt les tran chants sont places 1e lang de generatrices , d'un evidement conique pratique en baut de faxe porte-lames. CLAIM Machire to cut spokes, earaeteris6e in that it comprises at least a lady cutter fixed on a blade-carrying shaft driven by a motor. SUB-CLAIMS 1. Pencil-sharpening machine according to claim, characterized in that it comprises two cutting blades, the edges of which are placed in the first language of generatrices, of a practical conical recess at the bottom of the blade-holder fax. 2. Machire ä tailler les crayon.s eelon la sous-revendication 1, caracterisee en ce que les deux lames sont dispos6es symetriquement ; par rapport ä Faxe de 1'evidement conique, en coupant cet axe au sommet du cöne. 2. Pencil sharpener according to sub-claim 1, characterized in that the two blades are arranged symmetrically; relative to the axis of the conical recess, intersecting this axis at the apex of the cone. 3. Machire ä tailler les Crayons selon la soii.9-revendication 2, caracterisee en ce que Tune des lames presente des encoches 1e Ion-" du tranchaut.3. Machire to sharpen pencils according to soii.9-claim 2, characterized in that one of the blades has notches 1st Ion- "tranchaut.
CH251667D 1946-05-02 1946-05-02 Pencil sharpening machine. CH251667A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH251667T 1946-05-02

Publications (1)

Publication Number Publication Date
CH251667A true CH251667A (en) 1947-11-15

Family

ID=4468939

Family Applications (1)

Application Number Title Priority Date Filing Date
CH251667D CH251667A (en) 1946-05-02 1946-05-02 Pencil sharpening machine.

Country Status (1)

Country Link
CH (1) CH251667A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1288955B (en) * 1960-10-18 1969-02-06 Faber Castell A W Sharpening machine for pencils and leads

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1288955B (en) * 1960-10-18 1969-02-06 Faber Castell A W Sharpening machine for pencils and leads

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