JP7736474B2 - シャープペンシル - Google Patents

シャープペンシル

Info

Publication number
JP7736474B2
JP7736474B2 JP2021119915A JP2021119915A JP7736474B2 JP 7736474 B2 JP7736474 B2 JP 7736474B2 JP 2021119915 A JP2021119915 A JP 2021119915A JP 2021119915 A JP2021119915 A JP 2021119915A JP 7736474 B2 JP7736474 B2 JP 7736474B2
Authority
JP
Japan
Prior art keywords
cam
cam surface
lead
rotor
writing
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.)
Active
Application number
JP2021119915A
Other languages
English (en)
Japanese (ja)
Other versions
JP2023015864A (ja
JP2023015864A5 (enExample
Inventor
昂正 福田
裕介 小泉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Pencil Co Ltd
Original Assignee
Mitsubishi Pencil Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to JP2021119915A priority Critical patent/JP7736474B2/ja
Application filed by Mitsubishi Pencil Co Ltd filed Critical Mitsubishi Pencil Co Ltd
Priority to PCT/JP2022/027265 priority patent/WO2023002879A1/ja
Priority to KR1020237040803A priority patent/KR20240035747A/ko
Priority to US18/578,444 priority patent/US12214616B2/en
Priority to EP22845813.9A priority patent/EP4375085A4/en
Priority to CN202280050544.1A priority patent/CN117651648A/zh
Priority to TW111127024A priority patent/TW202317392A/zh
Publication of JP2023015864A publication Critical patent/JP2023015864A/ja
Publication of JP2023015864A5 publication Critical patent/JP2023015864A5/ja
Application granted granted Critical
Publication of JP7736474B2 publication Critical patent/JP7736474B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • B43K21/033—Writing-core feeding mechanisms with sliding tubelike writing-core guide with automatic feed by pressure during use of pencil
    • 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)
JP2021119915A 2021-07-20 2021-07-20 シャープペンシル Active JP7736474B2 (ja)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP2021119915A JP7736474B2 (ja) 2021-07-20 2021-07-20 シャープペンシル
KR1020237040803A KR20240035747A (ko) 2021-07-20 2022-07-11 샤프 펜슬
US18/578,444 US12214616B2 (en) 2021-07-20 2022-07-11 Mechanical pencil
EP22845813.9A EP4375085A4 (en) 2021-07-20 2022-07-11 MECHANICAL PEN
PCT/JP2022/027265 WO2023002879A1 (ja) 2021-07-20 2022-07-11 シャープペンシル
CN202280050544.1A CN117651648A (zh) 2021-07-20 2022-07-11 自动铅笔
TW111127024A TW202317392A (zh) 2021-07-20 2022-07-19 自動鉛筆

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2021119915A JP7736474B2 (ja) 2021-07-20 2021-07-20 シャープペンシル

Publications (3)

Publication Number Publication Date
JP2023015864A JP2023015864A (ja) 2023-02-01
JP2023015864A5 JP2023015864A5 (enExample) 2024-07-04
JP7736474B2 true JP7736474B2 (ja) 2025-09-09

Family

ID=84979218

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2021119915A Active JP7736474B2 (ja) 2021-07-20 2021-07-20 シャープペンシル

Country Status (7)

Country Link
US (1) US12214616B2 (enExample)
EP (1) EP4375085A4 (enExample)
JP (1) JP7736474B2 (enExample)
KR (1) KR20240035747A (enExample)
CN (1) CN117651648A (enExample)
TW (1) TW202317392A (enExample)
WO (1) WO2023002879A1 (enExample)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020217682A1 (ja) 2018-12-13 2020-10-29 三菱鉛筆株式会社 シャープペンシル

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3850531A (en) * 1972-11-07 1974-11-26 Indevco Corp Automatically feeding lead pencil
JPS53145734A (en) * 1977-05-22 1978-12-19 Ancos Co Ltd Propelling pencil
US4459057A (en) * 1981-06-12 1984-07-10 Pentel Kabushiki Kaisha Mechanical pencil with automatic lead advance
JPS59110679U (ja) * 1983-01-18 1984-07-26 三菱鉛筆株式会社 ノツク式シヤ−プペンシル
JP4240417B2 (ja) * 2006-06-05 2009-03-18 三菱鉛筆株式会社 シャープペンシル
JP4847487B2 (ja) * 2008-03-26 2011-12-28 三菱鉛筆株式会社 シャープペンシル
JP5373361B2 (ja) * 2008-10-20 2013-12-18 ゼブラ株式会社 シャープペンシル
JP5215281B2 (ja) * 2009-12-03 2013-06-19 三菱鉛筆株式会社 シャープペンシル
JP5929755B2 (ja) * 2010-07-28 2016-06-08 ぺんてる株式会社 メカニカルペンシル
JP5798780B2 (ja) * 2011-04-07 2015-10-21 三菱鉛筆株式会社 シャープペンシル
KR101991528B1 (ko) 2011-06-21 2019-06-20 미쓰비시 엔피쯔 가부시키가이샤 샤프펜슬
JP6422692B2 (ja) * 2013-09-03 2018-11-14 三菱鉛筆株式会社 複数の樹脂成形部材を備えた筆記具または塗布具
JP6706132B2 (ja) * 2016-04-22 2020-06-03 株式会社パイロットコーポレーション シャープペンシル
JP7049836B2 (ja) * 2018-01-17 2022-04-07 三菱鉛筆株式会社 塗布具の把持具

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020217682A1 (ja) 2018-12-13 2020-10-29 三菱鉛筆株式会社 シャープペンシル

Also Published As

Publication number Publication date
US20240383270A1 (en) 2024-11-21
EP4375085A1 (en) 2024-05-29
JP2023015864A (ja) 2023-02-01
TW202317392A (zh) 2023-05-01
WO2023002879A1 (ja) 2023-01-26
CN117651648A (zh) 2024-03-05
EP4375085A4 (en) 2025-06-18
US12214616B2 (en) 2025-02-04
KR20240035747A (ko) 2024-03-18

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