GB1336754A - Push-type mechanical pencil with lead advancing means - Google Patents
Push-type mechanical pencil with lead advancing meansInfo
- Publication number
- GB1336754A GB1336754A GB1332271*[A GB1332271A GB1336754A GB 1336754 A GB1336754 A GB 1336754A GB 1332271 A GB1332271 A GB 1332271A GB 1336754 A GB1336754 A GB 1336754A
- Authority
- GB
- United Kingdom
- Prior art keywords
- latching member
- pencil
- portions
- push
- smaller diameter
- 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
Links
- 240000009274 Ceratotheca sesamoides Species 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K21/00—Propelling pencils
- B43K21/02—Writing-core feeding mechanisms
- B43K21/16—Writing-core feeding mechanisms with stepwise feed of writing-cores
Landscapes
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Abstract
1336754 Retractable mechanical pencils DAI NIHON BUNGU KK [trading as JAPAN STATIONERY CO Ltd] 5 May 1971 [6 May 1970 (2) 22 May 1970] 13322/71 Heading B6P In a retractable mechanical pencil of the clutch type, a latching member 50 is movable between two portions of the pencil barrel 18 and 19, having different diameters and defining an annular shoulder therebetween. When the pencil is projected, the latching member 50 moves from the smaller diameter portion, Fig. 2A, to the larger diameter portion (Fig. 2B). To retract the pencil, it is initially advanced still further so that the latching member enters a slidably mounted annular guide 53. On allowing the pencil to return, the annular guide moves rearwardly and abuts the shoulder between portions 18 and 19, whereupon the latching member passes directly into the portion 19 of smaller diameter, which defines the retracted position. In a modification (Figs. 3A to 3D), the latching member (56) is wedge shaped, and the push button (55) has an inclined end which co-operates with the latching member to cause it to tilt.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4403370 | 1970-05-06 | ||
JP4403470U JPS4934197Y1 (en) | 1970-05-06 | 1970-05-06 | |
JP4334570A JPS5516839B1 (en) | 1970-05-22 | 1970-05-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1336754A true GB1336754A (en) | 1973-11-07 |
Family
ID=27291508
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1332271*[A Expired GB1336754A (en) | 1970-05-06 | 1971-05-05 | Push-type mechanical pencil with lead advancing means |
Country Status (4)
Country | Link |
---|---|
US (1) | US3728033A (en) |
DE (1) | DE2122047C3 (en) |
FR (1) | FR2091167A5 (en) |
GB (1) | GB1336754A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2160306B2 (en) * | 1971-12-04 | 1974-12-19 | Fa. A.W. Faber-Castell, 8504 Stein | Lead pencil with a lead advance mechanism |
JPS54131426A (en) * | 1978-04-01 | 1979-10-12 | Ancos Co Ltd | Rotary sliding mechanical pencil |
US4382706A (en) * | 1980-05-07 | 1983-05-10 | Ancos Co., Ltd. | Mechanical pencil |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2222295A (en) * | 1939-01-19 | 1940-11-19 | Spencerian Pen Company | Mechanical pencil |
CH274269A (en) * | 1949-04-08 | 1951-03-31 | Ag Brac | Mechanical pencil. |
GB734925A (en) * | 1951-08-20 | 1955-08-10 | Rodi & Wienerberger Ag | Improvements in or relating to mechanical pencils |
US3537799A (en) * | 1967-12-20 | 1970-11-03 | Fumiko Sakamoto | Mechanical pencil |
-
1971
- 1971-05-04 DE DE2122047A patent/DE2122047C3/en not_active Expired
- 1971-05-04 US US00140144A patent/US3728033A/en not_active Expired - Lifetime
- 1971-05-04 FR FR7115996A patent/FR2091167A5/fr not_active Expired
- 1971-05-05 GB GB1332271*[A patent/GB1336754A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2122047B2 (en) | 1973-12-20 |
FR2091167A5 (en) | 1972-01-14 |
US3728033A (en) | 1973-04-17 |
DE2122047C3 (en) | 1974-07-18 |
DE2122047A1 (en) | 1971-11-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |