GB1456115A - Mechanical pencil - Google Patents
Mechanical pencilInfo
- Publication number
- GB1456115A GB1456115A GB1601374A GB1601374A GB1456115A GB 1456115 A GB1456115 A GB 1456115A GB 1601374 A GB1601374 A GB 1601374A GB 1601374 A GB1601374 A GB 1601374A GB 1456115 A GB1456115 A GB 1456115A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lead
- chuck
- tube
- mechanical pencil
- ring
- 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
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
- B43K24/18—Mechanisms for selecting, projecting, retracting or locking writing units for selecting, projecting and locking several writing units and for feeding the writing-cores
-
- 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
- B43K21/027—Writing-core feeding mechanisms with sliding tubelike writing-core guide
-
- 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
-
- 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
- B43K21/22—Writing-cores gripping means, e.g. chucks
Landscapes
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Abstract
1456115 Writing appliance Y MITSUYA 10 April 1974 16013/74 Heading B6P A mechanical pencil has a chuck 20 and a chuck closing member 21 able to move together to advance a lead 28 and lead protecting tube 13. The chuck 20 is further movable (see Fig. 2) to release the lead 28 to permit a stepwise feeding of the lead 28. The tube 13 has an enlarged portion 15 engaged by a ring 17 whose internal and external diameters permit it to touch the portion 15 only of the tube 13. The ring 17 provides sufficient weight to retract the lead 28 and tube 13 when the chuck is open and the writing point uppermost.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1601374A GB1456115A (en) | 1974-04-10 | 1974-04-10 | Mechanical pencil |
AU67706/74A AU485791B2 (en) | 1974-04-10 | 1974-04-10 | Mechanical pencil |
US459854A US3899256A (en) | 1974-04-10 | 1974-04-10 | Mechanical pencil |
FR7414002A FR2268650A1 (en) | 1974-04-10 | 1974-04-23 | Mechanical pencil with chuck above movable cylinder - has ring to aid retraction when tip is upward |
DE2420448A DE2420448C3 (en) | 1974-04-10 | 1974-04-26 | Filling pencil |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1601374A GB1456115A (en) | 1974-04-10 | 1974-04-10 | Mechanical pencil |
AU67706/74A AU485791B2 (en) | 1974-04-10 | 1974-04-10 | Mechanical pencil |
US459854A US3899256A (en) | 1974-04-10 | 1974-04-10 | Mechanical pencil |
FR7414002A FR2268650A1 (en) | 1974-04-10 | 1974-04-23 | Mechanical pencil with chuck above movable cylinder - has ring to aid retraction when tip is upward |
DE2420448A DE2420448C3 (en) | 1974-04-10 | 1974-04-26 | Filling pencil |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1456115A true GB1456115A (en) | 1976-11-17 |
Family
ID=60200854
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1601374A Expired GB1456115A (en) | 1974-04-10 | 1974-04-10 | Mechanical pencil |
Country Status (5)
Country | Link |
---|---|
US (1) | US3899256A (en) |
AU (1) | AU485791B2 (en) |
DE (1) | DE2420448C3 (en) |
FR (1) | FR2268650A1 (en) |
GB (1) | GB1456115A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4270870A (en) * | 1977-05-22 | 1981-06-02 | Ancos Co., Ltd. | Mechanical pencil with chuck closing by normal writing grip |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2609671C2 (en) * | 1976-03-09 | 1983-11-24 | Helmut Dipl.-Ing. 8501 Altenberg Bross | Mechanical pencil with movable lead protection tube |
DE2611608B2 (en) * | 1976-03-19 | 1979-05-23 | Fa. A.W. Faber-Castell, 8504 Stein | Clutch pencil with lead advance caused by pressing on the tip of the pen |
US4171170A (en) * | 1977-03-31 | 1979-10-16 | Kotobuki & Co., Ltd. | Automatic pencil |
US4411543A (en) * | 1979-10-29 | 1983-10-25 | Pentel Kabushiki Kaisha | Self-feeding mechanical pencil |
US5117583A (en) * | 1990-07-25 | 1992-06-02 | Reum Mark T | Landscape terracing material |
JP6589370B2 (en) * | 2014-05-30 | 2019-10-16 | ぺんてる株式会社 | mechanical pencil |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2385329A (en) * | 1944-06-02 | 1945-09-25 | J D Buchanan | Pencil |
US2532748A (en) * | 1948-09-14 | 1950-12-05 | Koh I Noor L & C Hardtmuth | Push-cap operated pencil |
US3537799A (en) * | 1967-12-20 | 1970-11-03 | Fumiko Sakamoto | Mechanical pencil |
US3804536A (en) * | 1971-03-24 | 1974-04-16 | Ancos Co Ltd | Slide type mechanical pencil |
-
1974
- 1974-04-10 GB GB1601374A patent/GB1456115A/en not_active Expired
- 1974-04-10 AU AU67706/74A patent/AU485791B2/en not_active Expired
- 1974-04-10 US US459854A patent/US3899256A/en not_active Expired - Lifetime
- 1974-04-23 FR FR7414002A patent/FR2268650A1/en active Granted
- 1974-04-26 DE DE2420448A patent/DE2420448C3/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4270870A (en) * | 1977-05-22 | 1981-06-02 | Ancos Co., Ltd. | Mechanical pencil with chuck closing by normal writing grip |
Also Published As
Publication number | Publication date |
---|---|
AU6770674A (en) | 1975-10-16 |
DE2420448B2 (en) | 1980-11-27 |
DE2420448A1 (en) | 1975-11-06 |
FR2268650B1 (en) | 1976-12-17 |
FR2268650A1 (en) | 1975-11-21 |
AU485791B2 (en) | 1975-10-16 |
US3899256A (en) | 1975-08-12 |
DE2420448C3 (en) | 1981-08-06 |
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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 |