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1. 发明专利

DE3750903D1 未知
公开(公告)号：DE3750903D1
公开(公告)日：1995-02-02
申请号：DE3750903
申请日：1987-10-30
申请人： KOTOBUKI & CO LTD
发明人： KAGEYAMA HIDEHEI , MITSUYA YOSHIHIDE , NAKAZATO YOICHI
IPC分类号： B43K21/033 , B43K21/22
摘要： A chuck for a mechanical pencil, wherein a lead holding part (62) is formed with several teeth (63) for use in holding the lead under four-point or six-point contacted condition. In this manner lead dust discharging regions are made. The extremity end (41) of the lead supplying cylinder is abutted against the rear raised surface (601) of the flange part (6a) from the rear end side of the lead chuck, forced applied from both directions when the front raised surface (602) of the flange part (6a) receive the rear end of the resilient member (12) installed between it and the sleeve (7) are utilized and each of the chuck members (61) generates a flexing phenomenon and then the chuck members may perform an instantaneous expanding operation under this flexing force.

2. 发明专利

DE3750903T2 未知
公开(公告)号：DE3750903T2
公开(公告)日：1995-04-20
申请号：DE3750903
申请日：1987-10-30
申请人： KOTOBUKI & CO LTD
发明人： KAGEYAMA HIDEHEI , MITSUYA YOSHIHIDE , NAKAZATO YOICHI
IPC分类号： B43K21/033 , B43K21/22
摘要： A chuck for a mechanical pencil, wherein a lead holding part (62) is formed with several teeth (63) for use in holding the lead under four-point or six-point contacted condition. In this manner lead dust discharging regions are made. The extremity end (41) of the lead supplying cylinder is abutted against the rear raised surface (601) of the flange part (6a) from the rear end side of the lead chuck, forced applied from both directions when the front raised surface (602) of the flange part (6a) receive the rear end of the resilient member (12) installed between it and the sleeve (7) are utilized and each of the chuck members (61) generates a flexing phenomenon and then the chuck members may perform an instantaneous expanding operation under this flexing force.

3. 发明专利

JPS63319200A PROPELLING PENCIL 失效
公开(公告)号：JPS63319200A
公开(公告)日：1988-12-27
申请号：JP15577787
申请日：1987-06-23
申请人： KOTOBUKI & CO LTD
发明人： KAGEYAMA SHUHEI , MITSUYA YOSHIHIDE , NAKAZATO YOICHI
IPC分类号： B43K21/16 , B43K21/027 , B43K21/033 , B43K21/22

4. 发明专利

JPH052517B2 失效
公开(公告)号：JPH052517B2
公开(公告)日：1993-01-12
申请号：JP9490587
申请日：1987-04-17
申请人： KOTOBUKI & CO LTD
发明人： KAGEYAMA SHUHEI , MITSUYA YOSHIHIDE , NAKAZATO YOICHI
IPC分类号： B43K21/033 , B43K21/027 , B43K21/16

5. 发明专利

JPS63295299A PROPELLING PENCIL 失效
公开(公告)号：JPS63295299A
公开(公告)日：1988-12-01
申请号：JP3120587
申请日：1987-02-13
申请人： KOTOBUKI & CO LTD
发明人： KAGEYAMA SHUHEI , MITSUYA YOSHIHIDE , NAKAZATO YOICHI
IPC分类号： B43K21/16 , B43K21/00 , B43K21/22

6. 发明专利

JP2554260B2 失效
公开(公告)号：JP2554260B2
公开(公告)日：1996-11-13
申请号：JP15577787
申请日：1987-06-23
申请人： KOTOBUKI & CO LTD
发明人： KAGEYAMA SHUHEI , MITSUYA YOSHIHIDE , NAKAZATO YOICHI
IPC分类号： B43K21/16 , B43K21/027 , B43K21/033 , B43K21/22

7. 发明专利

JPH01110199A PROPELLING PENCIL 失效
公开(公告)号：JPH01110199A
公开(公告)日：1989-04-26
申请号：JP26663087
申请日：1987-10-23
申请人： KOTOBUKI & CO LTD
发明人： KAGEYAMA SHUHEI , MITSUYA YOSHIHIDE , NAKAZATO YOICHI
IPC分类号： B43K21/027 , B43K21/033 , B43K21/16 , B43K24/08
摘要： PURPOSE: To completely house a slider in a lock and also protrude a lead S from a slider tip portion by disposing therein a knock operation section capable of operating side knocking and a cylindrical ring coupled with an inner sleeve tip. CONSTITUTION: An operation convex portion 22 of a knock operation section 2 is pressed by a forefinger against elastic materials 17 and 18 when a lead S is worn while the upper half portion of a slider 9 is held in a writing position. When a lever 3 is turned by the side-knock operation and an outer sleeve 4 and a stopper 19 are pressed and moved forward, an inner sleeve 5, a lead feeding mechanism 6, a cylindrical ring 7 and an unlocking ring 8 are integrally advanced at a distance (b) until the tip of the cylindrical ring 7 is in contact with an inner stair portion 101d of a tipping tool 1D. The distance (b) corresponds to the volume that the lead is fed. When a forefinger is released from the operation convex section 22, inner and outer sleeves 4 and 5 and stopper 19 are retreated by elastic force of the elastic materials 17 and 18. By this retreating movement, the slider 9 is housed in an external cylinder 1 and held locked at a complete housing position within the tipping tool 1D.

8. 发明专利

JPS63281898A PROPELLING PENCIL 失效
公开(公告)号：JPS63281898A
公开(公告)日：1988-11-18
申请号：JP11752487
申请日：1987-05-14
申请人： KOTOBUKI & CO LTD
发明人： KAGEYAMA SHUHEI , MITSUYA YOSHIHIDE , NAKAZATO YOICHI
IPC分类号： B43K21/033 , B43K21/027 , B43K21/16

9. 发明专利

JPH02122996A LEAD FEEDING-OUT MECHANISM FOR MECHANICAL PENCIL AND ASSEMBLY THEREOF 失效
公开(公告)号：JPH02122996A
公开(公告)日：1990-05-10
申请号：JP27693388
申请日：1988-11-01
申请人： KOTOBUKI & CO LTD
发明人： KAGEYAMA SHUHEI , MITSUYA YOSHIHIDE , NAKAZATO YOICHI
IPC分类号： B43K21/027 , B43K21/033 , B43K21/16 , B43K21/22 , B43K21/24
摘要： PURPOSE:To enable efficient assembly by providing a lead chuck having a sliding contact part so that at the time of mounting the lead chuck into a sleeve, the sliding contact part easily presses against, broadens and gets over a projected part of the sleeve by utilizing its own curved surface parts. CONSTITUTION:A second elastic body 56 is fitted over the outer periphery of an assembled lead chuck 51. The lead chuck 51 in this condition is inserted into a sleeve 4 from the rear side, and is moved forward by pushing by, for example, a jig. The inside diameter X of a projected part 44 of the sleeve 4 is smaller than the outside diameter Y of a sliding contact part 53 of the lead chuck 51. In the forward movement of the lead chuck 51, therefore, the sliding contact part 53 presses against the projected part 44 and gets over the part 44 while broadening the projected part 44 by utilizing its own curved surface parts. The lead chuck 51 is composed of cast metallic pieces or a synthetic resin with a high hardness, and the sliding contact part 53 is projected at only two curved surface parts, so that it can gets over the projected part 44 of the sleeve 4 by pressing the projected part 44 wider. Then, a metallic tube 54 is slantly inserted into the sleeve 4 from the front side in the manner of being caught by one side of the sliding contact part 53, and the lead chuck 51 is disposed in a predetermined position in the sleeve 4.

10. 发明专利

JPS63260493A PROPELLING PENCIL 失效
公开(公告)号：JPS63260493A
公开(公告)日：1988-10-27
申请号：JP9490587
申请日：1987-04-17
申请人： KOTOBUKI & CO LTD
发明人： KAGEYAMA SHUHEI , MITSUYA YOSHIHIDE , NAKAZATO YOICHI
IPC分类号： B43K21/033 , B43K21/027 , B43K21/16

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