US2883966A - Multi-color pencil - Google Patents

Multi-color pencil Download PDF

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Publication number
US2883966A
US2883966A US384677A US38467753A US2883966A US 2883966 A US2883966 A US 2883966A US 384677 A US384677 A US 384677A US 38467753 A US38467753 A US 38467753A US 2883966 A US2883966 A US 2883966A
Authority
US
United States
Prior art keywords
pencil
clasp
unit
lead
main
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
US384677A
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English (en)
Inventor
Germann Werner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fabrique Suisse de Crayons Caran dAche SA
Original Assignee
Fabrique Suisse de Crayons Caran dAche SA
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
Priority to CH302176D priority Critical patent/CH302176A/fr
Priority to FR1083636D priority patent/FR1083636A/fr
Priority to DEF12179A priority patent/DE1136610B/de
Application filed by Fabrique Suisse de Crayons Caran dAche SA filed Critical Fabrique Suisse de Crayons Caran dAche SA
Priority to US384677A priority patent/US2883966A/en
Application granted granted Critical
Publication of US2883966A publication Critical patent/US2883966A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K24/00—Mechanisms for selecting, projecting, retracting or locking writing units
    • B43K24/10—Mechanisms for selecting, projecting, retracting or locking writing units for selecting, projecting and locking several writing units
    • B43K24/12—Mechanisms for selecting, projecting, retracting or locking writing units for selecting, projecting and locking several writing units operating by means sliding in longitudinally-slotted casings

Definitions

  • the present invention relates to a multi-color pencil -of the type comprising a pointed tubular body in which are arranged several complete pencil units adapted to be moved selectively to operative position at the point of the tubular body against the action of a return spring.
  • the pencil also includes gripping means at the point of said body adapted to hold each selected pencil unit in operative position. There is also provided means to permit retraction of the selected unit by releasing the said gripping means.
  • each lead pencil unit, in which the lead is engaged has its own clasp for gripping the lead
  • Figure l is an axial section of the first embodiment.
  • Figure 2 is a view, on a smaller scale, of one of the cam sleeves of the first embodiment.
  • Figure 3 is a vertical section of the second embodiment.
  • Figure 4 is a view in section on line 4--4 of Figure 3.
  • This multi-color pencil comprises a hollow and tapered or pointed main body 1 in which are provided several colored lead pencil units 2 whose individual construction is immaterial, except that each has its own clasp, but' one of which will be briefly hereinafter referred to in part.
  • each lead pencil unit 2 has an integral knob or finger engaging tab 3 adapted to slide in a slot 4 of the body 1 and making it possible to bring the nected to body 1 by its enlarged outer end 7 supported in a web or spider 7a of said body and whose other end has an annular flange providing a shoulder 8 which serves as an abutment for one end of said spring 5.
  • the other or outer end of the spring engages the inturned edge 9 of a tubular casing element 10 which forms a part of each unit 2 and carries the finger piece or push tab 3.
  • the spring 5, therefore, normally maintains its related lead pencil unit casing 10 and its tab 3 in retracted position.
  • the casing 10 supports a conventional threaded feeding device for lead 11, said device comprising a push rod 'ice 12 angularly interlocked with the shank 13 of the clasp 22 in which the lead of the individual unit is held, when the conical face 23 thereof cooperates with main clasp 15.
  • the feeding movement of lead 11 can be effected by hand only when the corresponding lead holding unit has been brought into the operative position. It will then be sufficient to rotate clasp 22 in order to cause a feeding movement of lead 11.
  • Rotation of clasp 22 with respect to casing element 10 which is angularly fixed causes a corresponding rotation of push rod 12 whose rear part 12a cooperates with the threaded portion 10a of casing element 10 and causes a forward or backward movement of push rod 12.
  • part 12a is flat and is engaged in a longitudinal slot of clasp 22 extending on the rear part of that clasp.
  • Clasp 22 is axially stationary in part 10a because of a flange 22a with which it is provided and which is guided in a crirnped portion 10b at the end of casing element 10.
  • Such a lead-feeding mechanism is well known.
  • a cage 29 in body 1 terminates in the aforesaid main clasp 15 consisting of a plurality of segments 16, the outer portions of which are formed with a conical surface 17 and a shoulder cooperating with the edge of the opening at the point of body 1 to bring about the closing of the main clasp through axial displacement thereof toward the interior of body 1.
  • This axial displacement is caused by a spring 19 confined between a shoulder 20 on cage 29 and a shoulder 21 on the body 1.
  • the means provided for automatically retracting the lead pencil unit in use when another selected unit is projected includes a sleeve 24 (Fig. 2) with as many cam slots .25 as the main pencil body has pencil units 2.
  • This sleeve 24 surrounds the entire group of pencil units 2, and each push tab 3 passes through a related cam slot 25. As also shown in Figure 2, each slot 25 presents on the side of the pencil point a portion 26 in the shape of a helicoidal incline and, on the opposite side, a shoulder 27. Moreover, this sleeve 24 is coaxial and slightly spaced at its lower end 28 in relation to a cage 29 which carries main clasp 15.
  • the return of a lead pencil unit to the storage position is effected by manual pressure on the push tab 3 of another selected one of the units 2 due to the shank of said tab eifecting turning of the sleeve 24. That is to say, the push tab 3 of such newly selected unit comes then to bear against shoulder 27 of the corresponding slot 25 and transmits its axial movement to sleeve 24 so that after a short angular and axial movement of the sleeve, the edge 28 thereof comes to bear against the upper edge of cage 29 connected to the main clasp 15.
  • This clasp is thus projected outwardly of body 1, which enables the segments 16 to spread apart, thereby releasing the clasp 22 of the unit 2 which is to be drawn back into the position of storage by its spring.
  • tab 3 of the lead holder returns to its position of rest by virtue of spring 5 and acts on the helicoidal incline 26 of its corresponding slot 25, which causes sleeve 24 to turn by an angle sufficient to disengage the shank of tab 3 from shoulder 27.
  • the user can then push the newly selected unit forward until its clasp 22 separates the segments 16 of the main clasp 15 and the newly selected unit is then held in writing position byvthe said main clasp. 7
  • each unit 2 constitutes a magazine or container for replacement or spare leads, all of said magazines being accessible by unscrewing a cap 30.
  • the second form of construction shown in Figure 3 also comprises a main tubular body 1a in which are provided lead pencil units 2a also having finger tabs 3a adapted to be moved in the slots 4a of body 111.
  • main clasp 15a is of a shape which differs' slightly from that of the first form of construction shown in Figure 1.
  • the part on which the segments 16a are formed is screwed into the conical portion of cage 29a which includes strips 31, said strips 31 being joined to the cage 29a by welding or soldering as clearly shown by the short dashlines in Figure 3, all of which are rigidly secured at their upper ends to a disk 32 into which is screwed a push-button 33 telescopically mounted for relative sliding movement on the upper end of body 1a.
  • Said cage 29a, strips 31 and disk 32 are all tensioned by spring 19a to retracted position.
  • main clasp 15a is controlled by depressing push-button 33 which, through the strips 31 of cage 29a, pushes main clasp 15a outwardly, thus enabling segments 16a to spread apart and release clasp 22a.
  • This spring 34 is provided to return the lead pencil units 2a into their storage position.
  • This spring 34 surrounds the lower end of units 2a and rests at its lower end on the edge of cage 29a adjacent the inset lower ends of strips 31 and, at the other end, bears, through the intermediary of a ring 38, against an abutment 35 provided on casing am of each individual unit and forming an extension of the corresponding push tab 3a.
  • each pencil unit 2a a magazine or container for replacement leads is provided in each pencil unit 2a.
  • the rear portion of the tubular casing 100a of each lead holder 2a which forms such magazine is closed by a plug 36 which is simply frictionally inserted into the end of piece Matt, said plug 36 having hook-like prongs extending therefrom for allowing easy removal of said plug 36 from the pencil unit casing in order to introduce or remove leads therefrom, as clearly seen in Figure 3.
  • it will merely be necessary to unscrew push button 33 and, then remove the plugs 36.
  • the bringing into play of a fresh unit 2a is a two-stage operation.
  • the tab 3a of another unit 2a may be pushed downwardly against the force of spring 34 to cause its clasp 22a to enter main clasp 15a.
  • the spring 34 is compressed as shown, the lead holding units 2a not in use will remain retracted in the body 1a because the chuck or clasp ends 22a are blocked by the conical inner surface of the cage 29a.
  • a mechanical pencil comprising, in combination, a main body having a tapered point, a main clasp seat at said point, a cage disposed within said body, a main clasp on the lower end of said cage engaging said clasp seat, a cap member slidably mounted on the upper end of said body, a disk member slidably mounted within said body and connected to said cap, strip members mounted within said body and connected at their lower ends to the upper end of said cage and at their upper ends to said disk member, said strip members being spaced from each other, a plurality of pencil units disposed in said body, the lower portion of each pencil unit being positioned within the upper portion of said cage when each pencil unit isnot in its active position, each of said pencil units having a tubular casing member, said body having as many slots in the walls thereof as there are pencil units, an abutment member on the upper portion of each tubular casing member, a ring member positioned within said body and about said pencil units, said ring member engaging each abutment member of each tubular casing member when the pencil

Landscapes

  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
US384677A 1953-06-26 1953-10-07 Multi-color pencil Expired - Lifetime US2883966A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CH302176D CH302176A (fr) 1953-10-07 1952-03-06 Crayon à plusieurs couleurs.
FR1083636D FR1083636A (fr) 1953-10-07 1953-06-22 Perfectionnements apportés à un crayon à plusieurs couleurs
DEF12179A DE1136610B (de) 1953-06-26 1953-06-26 Mehrfarbenstift
US384677A US2883966A (en) 1953-10-07 1953-10-07 Multi-color pencil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US384677A US2883966A (en) 1953-10-07 1953-10-07 Multi-color pencil

Publications (1)

Publication Number Publication Date
US2883966A true US2883966A (en) 1959-04-28

Family

ID=23518293

Family Applications (1)

Application Number Title Priority Date Filing Date
US384677A Expired - Lifetime US2883966A (en) 1953-06-26 1953-10-07 Multi-color pencil

Country Status (4)

Country Link
US (1) US2883966A (fr)
CH (1) CH302176A (fr)
DE (1) DE1136610B (fr)
FR (1) FR1083636A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD385915S (en) * 1996-03-28 1997-11-04 Pentel Kabushiki Kaisha Mechanical pencil

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH302176A (fr) * 1953-10-07 1954-10-15 Caran D Ache Crayons Crayon à plusieurs couleurs.
US5584592A (en) * 1995-05-15 1996-12-17 Craig; Elizabeth Combination ballpoint pen and mechanical pencil

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2136290A (en) * 1935-06-11 1938-11-08 Fend Kurt Interchangeable lead pencil
FR855338A (fr) * 1939-01-26 1940-05-08 G A Pennellier Ets Porte-mines perfectionné
DE710380C (de) * 1938-03-15 1941-09-29 Kohler & Schaefer Wechselschreibstift mit durch Schiebetasten entgegen der Wirkung von Rueckholfedern verschiebbaren Minentraegern
FR51255E (fr) * 1940-09-11 1942-02-18 G A Pennellier Ets Porte-mines perfectionné
DE816804C (de) * 1949-06-25 1951-10-11 Heinrich Morlock Fa Wechselschreiber mit auswechselbaren Minentraegern oder Farbpatronen
DE838574C (de) * 1950-12-16 1952-05-08 Bernhard Naegele Jun Wechselschreibstift mit innerhalb der Mantelhuelse gefuehrten, durch Schieber betaetigten Minenhaltern
FR1083636A (fr) * 1953-10-07 1955-01-11 Caran D Ache Crayons Perfectionnements apportés à un crayon à plusieurs couleurs
FR1083637A (fr) * 1953-01-19 1955-01-11 Caran D Ache Crayons Perfectionnements apportés à un porte-mines

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE538728C (de) * 1929-05-24 1931-11-16 Carl Schmid Minenhalter
DE726250C (de) * 1938-06-10 1942-10-09 Fend Geb Wechselstift, insbesondere Mehrfarbenbleistift
DE727003C (de) * 1940-04-05 1942-10-24 Osmia Fuellhalter Fabrik G M B Druckfuellbleistift
AT174319B (de) * 1948-08-27 1953-03-25 Charles Bergonzo Druckfüllbleistift
NL79531C (fr) * 1948-08-27 1955-11-15
DE813128C (de) * 1948-10-02 1951-09-06 Bernhard Naegele Jun Druckfuellbleistift mit mehreren in rohrfoermigen Minenhaltern gelagerten Minen
DE834817C (de) * 1949-01-25 1952-03-24 Bernhard Naegele Jun Fuellbleistift
CH284111A (it) * 1949-06-23 1952-07-15 Kosca S R L Matita a porta-mine multipli, a rientro automatico del porta-mina.
CH275468A (de) * 1949-07-19 1951-05-31 Naegele Jun Bernhard Wechselschreibstift.

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2136290A (en) * 1935-06-11 1938-11-08 Fend Kurt Interchangeable lead pencil
DE710380C (de) * 1938-03-15 1941-09-29 Kohler & Schaefer Wechselschreibstift mit durch Schiebetasten entgegen der Wirkung von Rueckholfedern verschiebbaren Minentraegern
FR855338A (fr) * 1939-01-26 1940-05-08 G A Pennellier Ets Porte-mines perfectionné
FR51255E (fr) * 1940-09-11 1942-02-18 G A Pennellier Ets Porte-mines perfectionné
DE816804C (de) * 1949-06-25 1951-10-11 Heinrich Morlock Fa Wechselschreiber mit auswechselbaren Minentraegern oder Farbpatronen
DE838574C (de) * 1950-12-16 1952-05-08 Bernhard Naegele Jun Wechselschreibstift mit innerhalb der Mantelhuelse gefuehrten, durch Schieber betaetigten Minenhaltern
FR1083637A (fr) * 1953-01-19 1955-01-11 Caran D Ache Crayons Perfectionnements apportés à un porte-mines
FR1083636A (fr) * 1953-10-07 1955-01-11 Caran D Ache Crayons Perfectionnements apportés à un crayon à plusieurs couleurs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD385915S (en) * 1996-03-28 1997-11-04 Pentel Kabushiki Kaisha Mechanical pencil

Also Published As

Publication number Publication date
FR1083636A (fr) 1955-01-11
CH302176A (fr) 1954-10-15
DE1136610B (de) 1962-09-13

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