US3464774A - Writing implement,especially ball-type pen - Google Patents

Writing implement,especially ball-type pen Download PDF

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Publication number
US3464774A
US3464774A US662407A US3464774DA US3464774A US 3464774 A US3464774 A US 3464774A US 662407 A US662407 A US 662407A US 3464774D A US3464774D A US 3464774DA US 3464774 A US3464774 A US 3464774A
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United States
Prior art keywords
projections
writing
housing
teeth
writing implement
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
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US662407A
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English (en)
Inventor
Ernst Vetter
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Individual
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Individual
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Publication date
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Publication of US3464774A publication Critical patent/US3464774A/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
    • B43K24/02—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions
    • B43K24/08—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions operated by push-buttons
    • B43K24/084—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions operated by push-buttons with saw-like or analogous cams

Definitions

  • a writing implement comprising a housing, an actuating member manually operable against the action of resilient means for axial displacement within the housing and having one portion projecting from the housing, a writing member disposed in the housing and being connected with the actuating member for axial displacement therewith, so that the nib of the writing member can be displaced from a writing position in which it projects from the housing to an inoperative position in which it is enclosed by the housing, and locking means for locking the writing member in its writing and inoperative positions, the locking means including two members which are rotatable and axially displaceable relative to each other, one of said members being located on the pressure actuating member and having two spaced apart toothed portions, the portion remote from the nib of the writing member namely having teeth of alternately varying length, the other said member being located against axial movement within the housing and concentrically about the said one member and having spaced projections adapted to engage the recesses between adjacent teeth on the toothed portions
  • the pressure actuating member and the locking means can readily be manufactured by injection molding methods.
  • the injection molding tool for the manuatent O facture of the actuating member which may be conveniently in the form of a push button is simpler to manufacture than the tool used for the manufacture of the mechanism in which the toothed rims are arranged on the inside of a hollow body as it is the case with the control mechanism of the known writing implements.
  • the injection molded articles can be removed from the mold much more readily if the actuating rims are disposed on the periphery of a mechanism part, as is the case with the invention.
  • the member having the projection comprises two annular bodies joined together by means of one or more webs extending parallel to the housing axis. Due to the relatively easy removal from the mold of this member, the injection molding implement for this member may be designated in a relatively simple manner. The manufacture of this member is further facilitated when the projections are arranged in transversely aligned pairs.
  • the ends of the projection which engage the toothed portions have inclined surfaces which terminate in a point and which are arranged symmetrically about the axes of the projections.
  • the member having the projections is not solid walled and only the longitudinal webs necessary for holding the two annular members together have been left standing.
  • the pressure actuating member is slotted. Due to the elasticity of the plastics material used in the manufacture of the member having the projection, the ability of that member to retain its shape is not detrimentally influenced by the slotting of the two annular bodies.
  • the inner diameter of the sleeve-shaped actuating member may be widened at the end-side in funnel-like manner, thus also facilitating the pushing-on of this member on to the push button.
  • FIGURE 1 shows an elevational view of the push button used in the actuating mechanism
  • FIGURE 2 shows a development of the two superposed toothed rims
  • FIGURE 3 shows an elevational view of the further actuating member which is pushed on the push button shown in FIGURE 1;
  • FIGURE 4 shows a longitudinal section through the actuating member according to FIGURE 3 or a section along the line IVIV of FIGURE 5;
  • FIGURE 5 shows a section along the line V-V of FIGURE 3;
  • FIGURE 6 shows a longitudinal section through the Writing implement, the writing medium carrier being in the Writing position
  • FIGURE 7 shows a longitudinal section through the writing implement with the writing medium carrier in the inoperative position.
  • the writing implement includes two parts 1 and 2 which are screwed together to form a housing in which a ball point pen cartridge 3 is located.
  • a compression spring 5 is located in the housing so that one of its ends bears against a shoulder in the housing while the other end bears against a collar 4 positioned on the cartridge 3.
  • the rear end of the cartridge 3 is inserted in a bore 6 formed in a push button, designated generally by reference numeral 7 and which is located at the end of the housing remote from the ball of the cartridge 3.
  • the push button 7 is arranged to be axially displaceable, together with the cartridge 3, in the housing under or against the force of the spring 5.
  • the design of the pressure pin 7 is shown in detail in FIGURES 1 and 2.
  • the teeth of the toothed rim 9 are all of the same depth, while those of the toothed rim 8 are arranged so that teeth having relatively deep depth alternate with teeth of shallower depth.
  • the deeper recesses are formed by grooves having lateral delimiting faces extending parallel to each other, so that when the mechanism is actuated, an actuating member as, for instance, shown in FIGURE 3 will require only relatively slight rotation.
  • the teeth of the toothed rims 8 and 9 are offset relatively to each other.
  • the actuating member is designated generally by reference numeral 10, and comprises two annular members 11, 12 and which are spaced apart and formed into a unitary structure by means of relatively narrow webs 13, 14.
  • a pair of projections 15' and 15" protruding from the webs 13 and 14 are located at one end of the member on the inside of the annular member 11.
  • a second pair of projections 16' and 16" are located at the other end of the member 10 on the inside of the annular member 12 so that the projection 16 is axially aligned with the projection 15".
  • Both the pairs of projections 15', 15" and 16', 16- are arranged substantially diametrically opposite each other.
  • each projection of each pair has parallel side surfaces, one surface of each pair lying in a single diametrical plane of the member 10.
  • the projection 15, 15", 16, 16 each have, at their ends two inclined surfaces 17, 18 which terminate in a gable-shaped point and which co-operate with the toothed rim 8 or 9.
  • the inclination of the surfaces 17, 18 corresponds to that of the walls of the teeth belonging to the rims 8, 9 respectively. If it is not necessary to expect that one of the ends of the actuating member 10 will be pushed selectively onto the button 7, then it will sufiice if the ends of the projections 15, 16 are bevelled in such manner that what is produced is simply an oblique face.
  • the annular members 11 and 12 are formed with slots 19, 20.
  • the slots 19 and 20 together with the outwardlydirected funnel-shaped projections 21, 22 at either end of the actuating member 10 facilitate the mounting of the member 10 on the button 7.
  • the actuating member 10 is prevented from axial displacement by the shoulders 23 and 24 in the housing. Although the member 10 cannot move axially it is capable of rotating.
  • the lower rim 9 is associated with the lower projections 16' and 16 and associated with the upper projections 15' and 15" is the upper actuating rim 8.
  • the button 7 is pressed downwardly against the spring 5, then the teeth of the rim 8 are disengaged from the projections 15, 15".
  • the teeth associated with the toothed rim 9 come into engagement with the lower projections 16', 16 of the actuating member 10 until the projections impinge against the dedendum of these teeth, so that further displacement of the push button 7 is not possible.
  • the actuating member 10 has, due to the cooperation of the teeth of the rim 9 with the projections 16', 16", been rotated through a predetermined angle. If the button 7 is then released, then under the force of the spring 5 it is forced back once again into its original position.
  • the lower projections 16, 16" are disengaged from the teeth of the rim 9.
  • the teeth of the rim 8 engage the upper projections 15', 1S" and due to the co-operation of the teeth of the rim 8 with the projections 15', 15 the member 10 is further rotated so that the projections 15, 15" engage the deep recessed teeth of the rim 8.
  • the upward movement of the button 7 is limited by the engagement of the projections 15', 15" with the bottom of the deep recessed teeth. In this way, the cartridge 3 has been guided out of the writing position shown in FIGURE 6 back into the at-rest position shown in FIGURE 7. In order to displace the cartridge 3 once again into the writing position, the button 7 is actuated again, so that the above-described steps are repeated with the only difference that the upper projections 15, 15" finally pass into the shallower tooth gaps in the toothed rim 8.
  • rim 9 similarly to the rim 8, Le. with shallow and deep recesses. In this way, during assembly of the writing implement, either end of the button 7 may be inserted into the housing.
  • the member which is located against axial movement within the housing may be formed integral with the inward facing wall on the housing. Such a modification reduces the number of parts required to manufacture the writing implement.
  • a writing implement comprising a housing, an actuating member manually operable against the action of resilient means for axial displacement within the housing and having one portion projecting from the housing at the opposite end of the writing implement from the writing end, a writing member disposed in the housing and being connected with the actuating member for axial displacement therewith so that the nib of the writing member can be displaced from a writing position in which it projects from the housing to an inoperative position in which it is enclosed by the housing, and locking means for locking the writing member in its writing and inoperative positions, the locking means including two members which are rotatable and axially displaceable relative to each other, one of said members being located on the pressure actuating member and forming a single operating unit with said pressure actuating member, and said one member having two spaced apart toothed portions, at least the portion remote from the nib of the writing member having teeth of alternately varying length, the other said member being located against axial movement within the housing and concentrically about the said one member and having space
  • a writing implement as defined in claim 2 in which two projections are disposed on each of said annular bodies, said two projections on each annular body being oppositely arranged and offset with respect to each other, one side of each of said two projections lying substantially in the same imaginary diametrical plane.
  • a writing implement as defined in claim 1 wherein during assembly of the implement, one of said two annular bodies is placed in the actuating member before the other of said two annular bodies is placed therein, at least said one annular body having a slit portion.
  • a writing implement as defined in claim 1 in which the projections are arranged in axially aligned pairs and have gable-shaped ends including two inclined surfaces which terminate in a point and which are arranged symmetrically about the axes of the projections.

Landscapes

  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
US662407A 1967-02-24 1967-08-22 Writing implement,especially ball-type pen Expired - Lifetime US3464774A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV0033063 1967-02-24

Publications (1)

Publication Number Publication Date
US3464774A true US3464774A (en) 1969-09-02

Family

ID=7587823

Family Applications (1)

Application Number Title Priority Date Filing Date
US662407A Expired - Lifetime US3464774A (en) 1967-02-24 1967-08-22 Writing implement,especially ball-type pen

Country Status (7)

Country Link
US (1) US3464774A (de)
AT (1) AT291815B (de)
CH (1) CH458985A (de)
DE (1) DE1561863B2 (de)
GB (1) GB1138258A (de)
NL (1) NL6802437A (de)
SE (1) SE335289B (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5535869A (en) * 1993-10-26 1996-07-16 Warn Industries, Inc. Pulse actuated clutch for vehicle drive lines
US6062756A (en) * 1997-08-28 2000-05-16 Kabushiki Kaisha Pilot Push-button writing instrument
US6609737B2 (en) * 2000-11-29 2003-08-26 Meritor Light Vehicle Sytems ( Uk) Limited Lock arrangement
US6764240B2 (en) 2002-07-17 2004-07-20 Bic Corporation Universal refill mechanism and method
US20070158991A1 (en) * 2005-12-29 2007-07-12 Wonderland Nurserygoods Co., Ltd. Armrest device
US20130236230A1 (en) * 2012-03-08 2013-09-12 Chien-Lung Wu Stationery tool with a pushbutton having a push-proof capability

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE80470C (de) *
US2989032A (en) * 1955-03-25 1961-06-20 Frank T Johmann Writing instrument, particularly of the ball point type
GB961246A (en) * 1962-06-07 1964-06-17 Theodore Francis Henry Barrey Writing instruments
FR1439827A (fr) * 1963-05-02 1966-05-27 Fagard A J & Cie Perfectionnement aux stylos à bille à bouton-poussoir

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE80470C (de) *
US2989032A (en) * 1955-03-25 1961-06-20 Frank T Johmann Writing instrument, particularly of the ball point type
GB961246A (en) * 1962-06-07 1964-06-17 Theodore Francis Henry Barrey Writing instruments
FR1439827A (fr) * 1963-05-02 1966-05-27 Fagard A J & Cie Perfectionnement aux stylos à bille à bouton-poussoir

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5535869A (en) * 1993-10-26 1996-07-16 Warn Industries, Inc. Pulse actuated clutch for vehicle drive lines
US5586632A (en) * 1993-10-26 1996-12-24 Bigley; Jon Pulse actuated interlock mechanism
US6062756A (en) * 1997-08-28 2000-05-16 Kabushiki Kaisha Pilot Push-button writing instrument
US6609737B2 (en) * 2000-11-29 2003-08-26 Meritor Light Vehicle Sytems ( Uk) Limited Lock arrangement
US6764240B2 (en) 2002-07-17 2004-07-20 Bic Corporation Universal refill mechanism and method
US20070158991A1 (en) * 2005-12-29 2007-07-12 Wonderland Nurserygoods Co., Ltd. Armrest device
US7568766B2 (en) * 2005-12-29 2009-08-04 Wonderland Nurserygoods Co., Ltd. Armrest device
US20130236230A1 (en) * 2012-03-08 2013-09-12 Chien-Lung Wu Stationery tool with a pushbutton having a push-proof capability
US8978731B2 (en) * 2012-03-08 2015-03-17 Sdi Corporation Stationery tool with a pushbutton having a push-proof capability
TWI507306B (zh) * 2012-03-08 2015-11-11 Sdi Corp A press station with a pushpress function

Also Published As

Publication number Publication date
DE1561863B2 (de) 1975-05-22
AT291815B (de) 1971-07-26
SE335289B (de) 1971-05-17
DE1561863A1 (de) 1970-04-02
NL6802437A (de) 1968-08-26
CH458985A (de) 1968-06-30
GB1138258A (en) 1968-12-27

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