US3196839A - Operating mechanism for ball point pens and the like which may be pressed in a single piece with the snap members - Google Patents
Operating mechanism for ball point pens and the like which may be pressed in a single piece with the snap members Download PDFInfo
- Publication number
- US3196839A US3196839A US285355A US28535563A US3196839A US 3196839 A US3196839 A US 3196839A US 285355 A US285355 A US 285355A US 28535563 A US28535563 A US 28535563A US 3196839 A US3196839 A US 3196839A
- Authority
- US
- United States
- Prior art keywords
- recesses
- bore
- axially
- recess
- wall
- 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
Links
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Images
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
- B43K24/086—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 heart-shaped cams, balls
Definitions
- the present invention relates to Writing implements, and particularly to an operating mechanism for ball point pens in which a button is pushed in an axial direction relative to a barrel to project and retract the writing point.
- the operating mechanism of the invention is characterized in being formed in a single piece which may be molded from synthetic resins or similar material and includes the push button.
- FIG. 1 is a partly-sectional front-elevational view of a ball point pen equipped with the operating device of the invention
- FIG. 2 shows the pen of FIG. 1 in cross section on the line IIII;
- FIG. 3 is an enlarged developed detail view of the inner surface of the pen barrel shown in FIG. 1;
- FIG. 4 is a front elevational view of the operating mechanism of the pen of FIG. 1;
- FIG. 5 shows the device of FIG. 4 in side elevation
- FIG. 6 shows a cross section taken on the line VIVI of FIG. 4;
- FIG. 7 illustrates the successive four positions of the mechanism during the operation thereof.
- the ball point pen mainly consists of the barrel 1 and of an operating mechanism which acts on the refill tube 3.
- the two elements are each made in one piece from plastic or metal, thereby simplifying the simple manufacturing process in a manner not possible up to now.
- Conventional systems require four or more separate components for performing the same functions.
- the main feature of the invention is the unitary mechanism shown in FIGS. 4 and 5. It comprises a push button 2 fastened to a rigid rod 4 which is axially elongated, but radially offset with respect to the common axes of the button 2 and the barrel 1.
- the lower end of the rod 4 carries a piston 5 which engages the upper end of the refill 3.
- the piston 5 has a resilient arm 6 connected thereto. In the relaxed condition illustrated in FIG. 4, the arm 6 obliquely projects from the piston 5 axially toward the butt-on 2 and radially outward.
- the free end of the arm 6 is formed with an integral radial projection 6'.
- the barrel 1 has recesses 7 and 8 formed in the inner surface thereof which normally receives the projection 6', the recesses being shown on a larger scale in FIG. 3.
- the recess 7 is semi-circular and its end portions 7' and 7" are axially aligned.
- the recess 8 is axially interposed between the end portions 7', 7", and centered in the arc of the recess 7.
- FIG. 7 illustrates the operation of the pen.
- the projection 6 of the arm 6 is initially in the end portion 7 of the recess 7 as shown in FIGS. 1 and 7a while the writing point of the pen at the lower end of the refill 3 is completely retracted in the pen barrel 1.
- a spring (not shown) coaxially coiled around the refill 3 permanently urges the refill 3 to move inward of the barrel 1, as is conventional.
- the button 2 is released, the projection 6' follows the path of the circular groove 7 shown by the arrow in FIG. 7a, and returns to the portion 7' of the recess 7 which it occupied initially.
- Pressing the button 2 thus causes the writing point to be automatically projected and retracted by extremely simple and economical means.
- the shape of the several components may be varied within the scope of the following claims without departing from the spirit of the present invention.
- the recesses 7 and 8 may be formed in the movable mechanism while the elastic arm may be a part of the pen barrel, but such a modified embodiment is more complicated.
- the mechanism of the invention may obviously be applied to pens or pencils which differ from the conventional ball point chosen for the purpose of the disclosure.
- an operating member axially movable and rotatable in said bore, said operating member including a push portion axially projecting from said bore, and engaging means for engaging an ink container received in said bore,
- one of said members having an axial wall in said bore and being formed with two recesses in said wall, a separating portion of said wall free from recesses being interposed between said two recesses and separating the same,
- one of said recesses being elongated and having two longitudinal end portions, the other recess being axially spacedly interposed in axial alignment between said two end portions,
- the other member having a resilient arm portion having a free end radially projecting from said other member when in the relaxed condition, said free end normally engaging one of said recesses and being adapted to move axially from one recess to the other over said separating wall portion when said push button portion is axially moved.
- said one member being said barrel member, and said push button portion, said engaging means, and said arm portion being integral with each other and constituting a unitary structure.
- said one member being said barrel member, and said push button portion, said engaging means, and said' arm portion being integral with each other and constituting a unitary structure.
- one of the longitudinal end portions of said arcuate recess including a blind pocket portion directed toward said other recess.
- cam means on said free end of the arm portion for facilitating said movement of said free end from said one recess to the other over said separating wall portion.
Landscapes
- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH686862A CH394865A (it) | 1962-06-07 | 1962-06-07 | Meccanismo di comando per penne, matite, ecc., a punta scrivente retrattile |
Publications (1)
Publication Number | Publication Date |
---|---|
US3196839A true US3196839A (en) | 1965-07-27 |
Family
ID=4316287
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US285355A Expired - Lifetime US3196839A (en) | 1962-06-07 | 1963-06-04 | Operating mechanism for ball point pens and the like which may be pressed in a single piece with the snap members |
Country Status (5)
Country | Link |
---|---|
US (1) | US3196839A (de) |
AT (1) | AT249546B (de) |
CH (1) | CH394865A (de) |
DE (1) | DE1267570B (de) |
GB (1) | GB1015455A (de) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3268939A (en) * | 1964-11-03 | 1966-08-30 | Aversa Joseph | Cosmetic devices |
US3408148A (en) * | 1965-08-02 | 1968-10-29 | Bross Helmut Karl | Writing instrument |
US3432244A (en) * | 1965-08-02 | 1969-03-11 | Helmut Karl Bross | Writing instrument |
US3438715A (en) * | 1966-11-23 | 1969-04-15 | H Bross | Writing tool |
US3724961A (en) * | 1969-10-08 | 1973-04-03 | Plastica Sudamericana | Writing device having a retractable writing element |
US4000950A (en) * | 1974-04-03 | 1977-01-04 | Wahlberg Eric C | Writing instrument |
US4859103A (en) * | 1985-05-20 | 1989-08-22 | Wittek Gotz U | Self-sealing retractable writing implement |
US5004364A (en) * | 1989-07-07 | 1991-04-02 | Kabushiki Kaisha Pilot | Device for advancing and retracting writing element in writing instrument |
US5145272A (en) * | 1989-03-22 | 1992-09-08 | Merz & Krell Gmbh & Co. | Projectable and retractable, push button writing instrument |
US6742953B2 (en) | 2002-01-24 | 2004-06-01 | Bic Corporation | Writing instrument with display window |
US20160221382A1 (en) * | 2013-09-13 | 2016-08-04 | Moon Key Lee | Compact ballpoint pen |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3560548A1 (de) | 2018-04-29 | 2019-10-30 | PFM Medical AG | Implantierbare zugangsvorrichtung zum zugriff auf das gefässsystem eines menschlichen oder tierischen körpers, insbesondere ein subkutan implantierbarer zugangsanschluss |
EP3560547A1 (de) | 2018-04-29 | 2019-10-30 | PFM Medical AG | Implantierbare zugangsvorrichtung zum zugriff auf das gefässsystem eines menschlichen oder tierischen körpers, insbesondere ein subkutan implantierbarer zugangsanschluss |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1128363A (fr) * | 1955-08-01 | 1957-01-04 | Christan Ets | Stylographe à bille à bouton-poussoir |
US3070069A (en) * | 1961-07-27 | 1962-12-25 | Joseph L Ruden | Writing implement |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1109615A (fr) * | 1954-08-06 | 1956-01-31 | Plastiques Injectes Soc Ind De | Dispositif pour la commande des crayons à bille |
DE1706703U (de) * | 1955-03-30 | 1955-09-15 | Bellmann & Co Kunstharz Press | Druck-kugelschreiber. |
GB786107A (en) * | 1955-07-08 | 1957-11-13 | Penparts Ltd | Improvements relating to retractable writing instruments |
-
1962
- 1962-06-07 CH CH686862A patent/CH394865A/it unknown
-
1963
- 1963-06-04 US US285355A patent/US3196839A/en not_active Expired - Lifetime
- 1963-06-04 AT AT447663A patent/AT249546B/de active
- 1963-06-06 DE DEP1267A patent/DE1267570B/de active Pending
- 1963-06-06 GB GB22490/63A patent/GB1015455A/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1128363A (fr) * | 1955-08-01 | 1957-01-04 | Christan Ets | Stylographe à bille à bouton-poussoir |
US3070069A (en) * | 1961-07-27 | 1962-12-25 | Joseph L Ruden | Writing implement |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3268939A (en) * | 1964-11-03 | 1966-08-30 | Aversa Joseph | Cosmetic devices |
US3408148A (en) * | 1965-08-02 | 1968-10-29 | Bross Helmut Karl | Writing instrument |
US3432244A (en) * | 1965-08-02 | 1969-03-11 | Helmut Karl Bross | Writing instrument |
US3438715A (en) * | 1966-11-23 | 1969-04-15 | H Bross | Writing tool |
US3724961A (en) * | 1969-10-08 | 1973-04-03 | Plastica Sudamericana | Writing device having a retractable writing element |
US4000950A (en) * | 1974-04-03 | 1977-01-04 | Wahlberg Eric C | Writing instrument |
US4859103A (en) * | 1985-05-20 | 1989-08-22 | Wittek Gotz U | Self-sealing retractable writing implement |
US5145272A (en) * | 1989-03-22 | 1992-09-08 | Merz & Krell Gmbh & Co. | Projectable and retractable, push button writing instrument |
US5004364A (en) * | 1989-07-07 | 1991-04-02 | Kabushiki Kaisha Pilot | Device for advancing and retracting writing element in writing instrument |
US6742953B2 (en) | 2002-01-24 | 2004-06-01 | Bic Corporation | Writing instrument with display window |
US20160221382A1 (en) * | 2013-09-13 | 2016-08-04 | Moon Key Lee | Compact ballpoint pen |
US10081215B2 (en) * | 2013-09-13 | 2018-09-25 | Moon Key Lee | Compact ballpoint pen |
Also Published As
Publication number | Publication date |
---|---|
CH394865A (it) | 1965-06-30 |
DE1267570B (de) | 1968-05-02 |
GB1015455A (en) | 1965-12-31 |
AT249546B (de) | 1966-09-26 |
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