EP0538503B1 - Kugelschreiber mit einem drehbaren Nocken - Google Patents
Kugelschreiber mit einem drehbaren Nocken Download PDFInfo
- Publication number
- EP0538503B1 EP0538503B1 EP19910117922 EP91117922A EP0538503B1 EP 0538503 B1 EP0538503 B1 EP 0538503B1 EP 19910117922 EP19910117922 EP 19910117922 EP 91117922 A EP91117922 A EP 91117922A EP 0538503 B1 EP0538503 B1 EP 0538503B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cam
- rotary
- bar
- projections
- outer sleeve
- 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
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
- B43K24/084—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
- the present invention relates to a rotary-cam ball-point pen in which a refill pen point can be pushed out of the head member of the ball-point pen against the elasticity of an elastic body by knocking the rear end of the ballpoint pen.
- the ball-point pen can be maintained with the pen point pushed out of the head member of the ball-point pen, by a rotary-cam engaging a cam body.
- the pen point can be withdrawn into the head member of the ball-point pen by the elasticity of the elastic body by releasing the engagement of the rotary-cam with the cam body.
- a conventional rotary-cam ball-point pen as it is described for example in FR-A-1156612 and EP-A-0407002 has an outer sleeve, a rotary-cam mechanism comprised of a cam body provided on the inside of the outer sleeve, a rotary-cam engaging the cam body, and a cam bar engaging the rotary-cam.
- a refill, being a rear portion is loaded backward by a spring provided between the head member screwed on the forward end of the outer sleeve and a spring bearing formed on the refill so that the rear portion of the refill is forced into the rotary-cam.
- the ball-point pen according to EP-A-0407002 which represents the prior art as referred to in the pre-characterising portion of claim 1, shows a rotary cam follower provided with axially extending ribs being inserted into respective grooves of a stationary cam. Additionally a knocking rod of the ballpoint pen is provided with projections extending axially outwardly and being inserted in respective guide slots or slits in the cylinder of the pen in order to ensure a stable action of the knocking rod.
- said projections may be in the form of a peripheral flange extending around the entire outer surface of the knocking rod.
- said guiding slots or slits are replaced by a cylindrical recess. But this makes it necessary to take additional measures to limit rotation of the knocking rod within the cylinder.
- a rotary-cam ball-point pen has the above-mentioned structure, when the rotary-cam mechanism and refill are set in the outer sleeve, the rotary-cam mechanism and refill are inserted from the forward end of the outer sleeve in a state where the rear portion of the refill is inserted into the rotary-cam, an elastic body is put on the forward portion of the refill, and the head member is screwed on the forward end of the outer sleeve by which the rotary-cam, the refill, the elastic body and the head member are set up.
- the cam bar is inserted into the outer sleeve from the rear end of the outer sleeve, while the cam bar is deformed inward by the elasticity of the cam bar, which elasticity enables the projections of the cam bar to get over the rear portion of the cam body into grooves of the cam body by which the attachment of the cam bar to the cam body is made.
- the number of parts is decreased, and less time is required for assembly of parts.
- the cam body may be provided with a guide, which guides the projections of the cam bar.
- the guide guides the projections of the cam body.
- the cam bar may be formed with slits, slots or cuts.
- the slits, slots or cuts give flexibility to the cam body so that the cam bar can deform inward by applying a radial force to get over the rear portion of the cam body and go into the grooves of the cam body.
- a rotary-cam ball-point pen comprises outer sleeve 1, and cam mechanism 5 comprised of cam body 2 provided on the inside of the rear part of outer sleeve 1, Rotary-cam 3 engages cam body 2 and cam bar 4 engages rotary cam 3, and refill 7.
- Cam body 2 may be formed integrally with outer sleeve 1 or cam body 2 may be attached to the inside of outer sleeve 1 by a force fit, adhesion, or screwing.
- Spring 6 is provided between spring bearing 14 on refill 7 with its rear, end is inserted in to rotary cam 3 and head member 13 removably screwed on the forward end of outer sleeve 1. The attachment of head member 13 to outer sleeve 1 is made by insertion, engagement, or screwing.
- Cam bar 4 has a structure with flexibility in which the cam bar can be distorted inward by applying a radial force.
- the number of projections 84 of cam bar 4 equals the number of grooves 9 of cam body 2, for example 9, but usually less than 6, or for example 2(Figs 3(a) and (b) ). Pairs of projections are diametrically opposed.
- the number of projections 163 of rotary cam 3 is 3 in this case (Figs. 3(a) and (b) ).
- cam faces 174 of cam bar 4 engage cam face 183 of rotation cam 3, and projections 84 of cam bar 4 and projections 163 of rotary-cam 3 are inserted into grooves 9 of cam body 2. Further, the engagement of cam face 183 of rotary cam 3 with cam face 192 of cam body 2, and the insertion of projections 163 of rotary-cam 3 into grooves 9 of cam body 2 are alternatively made.
- Reference number 21 designates a clip formed integrally with cam bar 4.
- Fig. 2 illustrates in vertical section an important part of a second embodiment which has the same structure as the first embodiment, in which headed cam, body 2 is attached to the inside of the rear end of outer sleeve 1 by screwing.
- cam bar 4 When pen point 20 of refill 7 is drawn into head member 13 of outer sleeve 1, the rear end of cam bar 4 is knocked releasing cam faces 183 of rotary cam 3 from cam faces 192 of cam body 2. Thereafter projections 163 of rotary cam 3 and projections 84 of cam bar 4 are inserted into grooves 9 of cam body 2 while refill 7 is moved backward drawing pen point 20 of refill 7 into head member 13.
- cam bar 4 is inserted into outer sleeve 1 from the rear side it is possible to form a clip 21 from the integral part of cam bar 4 (Fig. 1), or a decoration having a size larger than the outside diameter, or a knocking cap.
- cam body 2 may be provided with guide 10 as shown in Fig. 4 which guides projections 84 of cam bar 4 so that the projections are easily inserted into grooves 9 of cam body 2.
- cam bar may be formed with slit or slot 11(Fig. 3(a) ), or cut 12( Figs. 5 and 6), which facilitates cam bar 4 deforming inward to get over rear portion 15 of cam body 2 to enter into grooves 9 of cam body 2.
- Slits 11 may be slits having one side open.
Landscapes
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
- Clamps And Clips (AREA)
Claims (5)
- Kugelschreiber mit drehbarem Nocken, der eine Außenhülse (1), ein Mittel (5) mit einem Drehnockenmechanismus, bei dem ein Nockenkörper (2) sich innerhalb der Außenhülse (1) befindet, einen mit dem Nockenkörper (2) zusammenwirkenden Drehnocken (3) und eine Nockenstange (4), die auf den Drehnocken (3) einwirkt, aufweist, wobei der Kugelschreiber ferner aufweist ein Bevorratungsmittel (7) für das Schreibfluid innerhalb der Außenhülse (1) mit einem in den Drehnocken (3) eingesetzten Endabschnitt, das unter dem Einfluß eines Federmittels (6) mit einer Vorspannkraft an dem Drehnocken (3) in Anlage gehalten ist, wobei weiter die Nockenstange (4) aus einem flexiblen Material derart besteht, daß sie zur Erleichterung ihres Einbaues durch eine nur geringe Radialkraft zusammengedrückt werden kann, dadurch gekennzeichnet, daß der Drehnocken (3) mit Vorsprüngen (16₃) versehen ist, die in Nuten (9) des Nockenkörpers (2) eingreifen und daß auch die Nockenstange (4) mit Vorsprüngen (8₄) versehen ist, die ebenfalls in die Nuten (9) des Nockenkörpers (2) eingreifen.
- Kugelschreiber nach Anspruch 1, dadurch gekennzeichnet, daß die Vorsprünge (8₄) gleitend in die Nuten (9) eingreifen und daß die Zahl der Nuten (9) nicht größer ist als die Zahl der Vorsprünge (8₄).
- Kugelschreiber nach Anspruch 1 oder Anspruch 2, dadurch gekennzeichnet, daß der Nockenkörper (2) Führungsmittel (10) für die in Mehrzahl vorgesehenen Nockenstangenvorsprünge (8₄) aufweist.
- Kugelschreiber nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Nockenstange (4) zumindest einen Schlitz (11) zur Erleichterung des Einbaues der Nockenstange (4) in den Nockenkörper (2) aufweist.
- Kugelschreiber nach Anspruch 4, dadurch gekennzeichnet, daß die Nockenstange (4) einen um die in Mehrzahl vorgesehenen Vorsprünge (8₄) herumgeführten Ausschnitt aufweist, damit die in Mehrzahl vorgesehenen Vorsprünge (8₄) zur Erleichterung des Zusammenbaues flexibel sind.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19910117922 EP0538503B1 (de) | 1991-10-21 | 1991-10-21 | Kugelschreiber mit einem drehbaren Nocken |
DE1991607458 DE69107458T2 (de) | 1991-10-21 | 1991-10-21 | Kugelschreiber mit einem drehbaren Nocken. |
ES91117922T ES2069172T3 (es) | 1991-10-21 | 1991-10-21 | Pluma de punta de bola de leva giratoria. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19910117922 EP0538503B1 (de) | 1991-10-21 | 1991-10-21 | Kugelschreiber mit einem drehbaren Nocken |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0538503A1 EP0538503A1 (de) | 1993-04-28 |
EP0538503B1 true EP0538503B1 (de) | 1995-02-15 |
Family
ID=8207271
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19910117922 Expired - Lifetime EP0538503B1 (de) | 1991-10-21 | 1991-10-21 | Kugelschreiber mit einem drehbaren Nocken |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0538503B1 (de) |
DE (1) | DE69107458T2 (de) |
ES (1) | ES2069172T3 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1270936B (it) * | 1993-05-12 | 1997-05-16 | Stilolinea Srl | Penna a sfera di montaggio semplificato |
DE4326838C2 (de) * | 1993-08-10 | 1996-01-11 | Interelektrik Ges M B H & Co K | Bistabiles Magnetventil |
JP4425618B2 (ja) * | 2003-12-08 | 2010-03-03 | 吉田プラ工業株式会社 | ノック式スライドケース |
JP6608161B2 (ja) * | 2015-04-20 | 2019-11-20 | 三菱鉛筆株式会社 | ノック式筆記具 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB854313A (en) * | 1955-08-30 | 1960-11-16 | Kahn David Inc | Improvements in or relating to writing instruments |
FR1358869A (fr) * | 1963-03-29 | 1964-04-17 | Ideal S R L Minuterie Metallic | Dispositif de commande à bouton-poussoir pour stylos à bille |
GB1192116A (en) * | 1968-09-04 | 1970-05-20 | Helmut Bross | Writing Instrument |
JPH0753993Y2 (ja) * | 1989-07-07 | 1995-12-13 | 株式会社パイロット | 筆記体の出没機構 |
-
1991
- 1991-10-21 EP EP19910117922 patent/EP0538503B1/de not_active Expired - Lifetime
- 1991-10-21 ES ES91117922T patent/ES2069172T3/es not_active Expired - Lifetime
- 1991-10-21 DE DE1991607458 patent/DE69107458T2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69107458D1 (de) | 1995-03-23 |
ES2069172T3 (es) | 1995-05-01 |
EP0538503A1 (de) | 1993-04-28 |
DE69107458T2 (de) | 1995-06-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5263786A (en) | Rotary-cam ball-point pen | |
US6517272B1 (en) | Double-chuck mechanical pencil | |
US4620811A (en) | Mechanical pencil | |
EP0538503B1 (de) | Kugelschreiber mit einem drehbaren Nocken | |
US6309129B1 (en) | Writing utensils | |
US5004364A (en) | Device for advancing and retracting writing element in writing instrument | |
US6126350A (en) | Writing utensil | |
JPH0624234Y2 (ja) | 筆記具 | |
EP0393377B1 (de) | Vorschubeinrichtung für einen stangenartigen Gegenstand | |
EP0863023B1 (de) | Füllminenstift mit zwei Spannbacken | |
JPH0761758B2 (ja) | 筆記用具の回転出没装置 | |
JPH07285291A (ja) | 芯体繰り出し具 | |
JP3837916B2 (ja) | 後端ノック式筆記具 | |
JP3407472B2 (ja) | 筆記具 | |
JP2019111722A (ja) | 筆記具 | |
JP3154210B2 (ja) | サイドノック式シャ−プペンシル | |
KR880003396Y1 (ko) | 샤아프 펜슬 | |
JPH0356398Y2 (de) | ||
JP3729618B2 (ja) | 筆記具の尾冠及び筆記具 | |
KR930000111Y1 (ko) | 회전캠식 보올펜 | |
JPH0568687U (ja) | ダブルノック式筆記具 | |
JPH1044685A (ja) | 多芯筆記具 | |
JPH0539916Y2 (de) | ||
JPH0315346Y2 (de) | ||
JP3158277B2 (ja) | 棒状体繰出機構付筆記具 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE ES FR GB IT |
|
17P | Request for examination filed |
Effective date: 19930521 |
|
17Q | First examination report despatched |
Effective date: 19930920 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE ES FR GB IT |
|
ET | Fr: translation filed | ||
REF | Corresponds to: |
Ref document number: 69107458 Country of ref document: DE Date of ref document: 19950323 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2069172 Country of ref document: ES Kind code of ref document: T3 |
|
ITF | It: translation for a ep patent filed |
Owner name: SOCIETA' ITALIANA BREVETTI S.P.A. |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 19981015 Year of fee payment: 8 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19991022 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19991028 Year of fee payment: 9 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19991111 Year of fee payment: 9 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20001021 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20001021 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010629 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20001113 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20051021 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20101230 Year of fee payment: 20 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R071 Ref document number: 69107458 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R071 Ref document number: 69107458 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20111022 |