公开(公告)号：US4955739A

公开(公告)日：1990-09-11

申请号：US261244

申请日：1988-10-21

申请人： Hidehei Kageyama ,  Yoshihide Mitsuya ,  Youichi Nakazato

发明人： Hidehei Kageyama ,  Yoshihide Mitsuya ,  Youichi Nakazato

IPC分类号： B43K21/027 ,  B43K21/033 ,  B43K21/16 ,  B43K24/08

CPC分类号： B43K24/082 ,  B43K21/027 ,  B43K21/16

摘要： A mechanical pencil is disclosed in which lead can be advanced in one of two ways; either automatically upon release of writing pressure on the pencil, or selectively manually by pressing inwardly against a side push button. The pencil includes an outer cylinder with a side pushing hole formed therein, and a side push button movably disposed in the side pushing hole. The side push button contacts a lever which is totally mounted within the outer cylinder and which contacts a lead advanced mechanism. Upon pressing in of the side push button, the lever is pivoted about its axis and caused to press downwardly against the lead advance mechanism to thereby cause advancement of a lead. Advancement of lead is also performed upon release of writing pressure of the pencil by way of a slider mechanism which is biased outwardly by way of a resilient member and which is forced outwardly by the resilient member upon release of writing pressure. This causes the slider to pull a lead forwardly to provide advancement thereof.

公开(公告)号：US4809023A

公开(公告)日：1989-02-28

申请号：US520633

申请日：1983-08-05

申请人： Engelbert Brunner ,  Karl Kaiser

发明人： Engelbert Brunner ,  Karl Kaiser

IPC分类号： B43K21/00 ,  B43K21/027 ,  B43K21/033 ,  B43K21/22 ,  B43L13/00 ,  B43L13/02 ,  G01D15/16 ,  B41J11/20

CPC分类号： B43L13/024 ,  B43K21/027

摘要： An automatic lead pencil device has a casing which is releasably mountable in a bracket of a drafting machine. Within the casing, there is a clamp sleeve in which a clamping member is axially movable for clamping and releasing a lead during use of the pencil device. An axial movable lead guide tube projects outwardly of the casing in the rest position, and there is a pencil brake within the lead guide tube. The contact zone between the clamping member and the clamp sleeve is constructed so as to be of the non-self-locking type. There is an operative connection between the clamping member and the lead guide tube such that the clamping member is closed when the lead guide tube moves axially inwardly to assume the working position and opens when the lead guide tube moves axially outwardly toward a rest position.

摘要翻译： 自动铅笔装置具有可释放地安装在牵伸机的支架中的壳体。 在套管内部有一个夹紧套筒，夹紧件可以轴向移动，以便在铅笔装置使用过程中夹紧和释放导线。 轴向可动引导引导管在静止位置向壳体外伸出，引导导管内有铅笔制动器。 夹紧构件和夹紧套筒之间的接触区域被构造为非自锁型。 在夹紧构件和引导导管之间存在操作性连接，使得当引导引导件沿轴向向内移动以呈现工作位置时，夹紧构件关闭，并且当引导引导件朝向静止位置轴向向外移动时打开夹紧构件。

公开(公告)号：US4650359A

公开(公告)日：1987-03-17

申请号：US727396

申请日：1985-04-25

申请人： Gouji Sakaoka

发明人： Gouji Sakaoka

IPC分类号： B43K21/033 ,  B43K21/16 ,  B43K21/22

CPC分类号： B43K21/033

摘要： A mechanical pencil having a chuck mechanism which permits the lead to advance but prevents the lead from retracting, a first slider, a second slider which is retractable progressively as a writing pressure is applied, a first engagement device for holding the second slider at its retracted position and a second engagement device for holding the first slider at its retracted position. The progressively retracted second slider is released to advance to the forward original position by applying a further writing pressure to cause a retraction of the first slider. Then, the second slider is advanced forwardly together with the lead so that the lead is advanced to a writing position.

摘要翻译： 一种具有卡头机构的自动铅笔，其具有使引线前进但防止引线回缩的第一滑块，作为书写压力逐渐伸缩的第二滑块，用于将第二滑块保持在其缩回状态的第一卡合机构 位置和用于将第一滑块保持在其缩回位置的第二接合装置。 逐渐缩回的第二滑块通过施加另外的书写压力而被释放以前进到原始位置，以引起第一滑块的缩回。 然后，第二滑块与引线一起前进，使得引线前进到写入位置。

公开(公告)号：US4504163A

公开(公告)日：1985-03-12

申请号：US525798

申请日：1983-08-24

申请人： Junichi Hashimoto ,  Tomozo Sekiguchi

发明人： Junichi Hashimoto ,  Tomozo Sekiguchi

IPC分类号： B43K21/033 ,  B43K25/02 ,  B43K21/16

CPC分类号： B43K21/033 ,  B43K25/028

摘要： A mechanical pencil having a writing point tube slidably mounted on the forward end portion of a pencil casing, an annular slider device slidably mounted within the pencil casing and having a lead retainer, a first spring for urging the writing point tube in the forward direction, a collet chuck mechanism having a lead engaging collet and a chuck-actuation cylinder, a second spring urging both the lead engaging collet and the chuck-actuation cylinder in the opposite direction and a third spring for urging the collet chuck mechanism in the forward direction. The pencil has a locking device for temporarily engaging the slider at its retracted position, and a pusher for releasing the engagement of the slider. When an axial thrust is applied to the writing tip of the pencil for lead advancement, the slider and the collet chuck mechanism as well are retracted within the pencil casing with their positional relation being unchanged. When the thrust against the writing tip is released, the collet chuck mechanism is advanced at first with the lead grasped therein to feed the lead out of the lead tube while the slider is temporarily engaged at its retracted position, and thereafter the pusher abuts against the slider to unlock it so that the slider advances by the effect of the first spring with the lead projecting from the lead tube.

摘要翻译： 一种自动铅笔，其具有可滑动地安装在铅笔壳体的前端部的书写点管，可滑动地安装在铅笔外壳内并具有引线保持器的环形滑动装置，用于向前方推压书写点管的第一弹簧， 具有引线接合夹头和卡盘驱动筒的夹头卡盘机构，沿着相反方向推动引线接合夹头和卡盘致动筒的第二弹簧，以及用于向前推动夹头卡盘机构的第三弹簧。 铅笔具有用于在其缩回位置暂时接合滑块的锁定装置和用于释放滑块的接合的推动器。 当向铅笔的笔尖施加轴向推力时，滑块和夹头卡盘机构也以其位置关系不变而缩回到铅笔盒内。 当释放写入尖端的推力时，夹头卡盘机构首先被夹在其中的引线推进，以便当滑块临时接合在其缩回位置时将引线从引线导出，然后推动器抵靠 滑块以将其解锁，使得滑块通过第一弹簧的作用而前进，其中铅从引导管突出。

公开(公告)号：US4500220A

公开(公告)日：1985-02-19

申请号：US420294

申请日：1982-09-20

申请人： Junichi Hashimoto

发明人： Junichi Hashimoto

IPC分类号： B43K21/033 ,  B43K21/20 ,  B43K23/10 ,  B43K23/12 ,  B43K21/02 ,  B43K9/00 ,  B43K21/22

CPC分类号： B43K23/122 ,  B43K21/033 ,  B43K21/20 ,  B43K23/10 ,  B43K23/128

摘要： A mechanical pencil includes a removable tubular cover which has functions to protect a tip of the pencil and also to advance automatically the lead therein a tiny increment to project from the pencil tip when it is attached to a rear end of the pencil for writing purposes and to a front end of the pencil after writing is finished.

摘要翻译： 一种机械铅笔包括一个可拆卸的管状盖，其具有保护铅笔尖端的功能，并且还能够自动引导铅线，当铅笔尖附接到铅笔的后端用于书写目的时，该铅笔从铅笔尖突出， 写完之后到铅笔的前端。

公开(公告)号：US4452544A

公开(公告)日：1984-06-05

申请号：US372241

申请日：1982-04-26

申请人： Yo Sumita

发明人： Yo Sumita

IPC分类号： B43K21/033 ,  B43K21/027 ,  B43K21/02

CPC分类号： B43K21/027

摘要： A mechanical pencil with automatic lead feed has a clamping mechanism for clamping a lead in such a manner that it holds the lead steadily against rearward movement but easily permits the lead to move forwardly. A lead tube is fixed at its rear end to the front end of a housing to guide and protect the lead. A sensor is slidably held in the front end of the housing and extends along the lead tube to sense the wear of the lead during writing. A lead advancing mechanism is actuated by the sensor and has a holder for frictionally holding the lead and an elastic member for urging the holder forwardly.

摘要翻译： 具有自动引线进给的自动铅笔具有用于夹紧引线的夹持机构，使得其稳定地保持引线以防止向后移动，但容易使引线向前移动。 导管在其后端固定到壳体的前端以引导和保护引线。 传感器可滑动地保持在壳体的前端，并且沿引线管延伸以感测在写入期间引线的磨损。 引导前进机构由传感器驱动，并具有用于摩擦地保持引线的保持器和用于向前推动保持器的弹性部件。

公开(公告)号：US4211500A

公开(公告)日：1980-07-08

申请号：US973718

申请日：1978-12-27

申请人： Junichi Hashimoto

发明人： Junichi Hashimoto

IPC分类号： B43K21/027 ,  B43K21/033 ,  B43K24/02 ,  B43K21/16

CPC分类号： B43K21/033 ,  B43K24/026

摘要： A tip-pushed type mechanical pencil permits a forward advance of a pencil lead by pressing the front end of the pencil against a writing surface and then releasing it. The mechanical pencil includes an outer cylinder in which an inner cylinder having a ferrule is fitted. The inner cylinder is normally urged by a first spring to cause the ferrule to project out of the front end of the outer cylinder. A control tube carrying a lead grasping packing is inserted within the inner cylinder. The control tube is urged toward the front end of the outer cylinder by a second spring. A chuck is received within the control tube, and is integrally connected with a lead passage tube which extends through the inner cylinder. The chuck cooperates with a chuck ring disposed within the control tube to grasp or release a lead. Both the chuck and the control tube are urged by a third spring in opposite directions. When the ferrule is pressed inward against the resilience of the first spring, the control tube retracts together with the inner cylinder, and when the force applied to the ferrule is released, the control tube moves toward the front end in delayed relationship with respect to the movement of the inner cylinder.

摘要翻译： 尖头式自动铅笔允许通过将铅笔的前端压靠在书写表面上然后将其释放而使铅笔线的前进。 该自动铅笔包括其中装配有套圈的内筒的外筒。 内筒通常由第一弹簧推动以使套圈从外筒的前端突出。 在内筒内插入带有把持填料的控制管。 控制管被第二弹簧推向外筒的前端。 卡盘被容纳在控制管内，并且与通过内筒延伸的引导通道管一体连接。 卡盘与设置在控制管内的卡盘配合以抓住或释放引线。 卡盘和控制管均由相反方向的第三弹簧推动。 当套筒内侧抵抗第一弹簧的弹力而向内压入时，控制管与内筒一起缩回，并且当施加到套圈的力被释放时，控制管以相对于第二弹簧的延迟关系向前端移动 内筒的运动。