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Double clip head mechanical propelling pencil

A technology for automatic pencils and chucks, which is applied in mechanical pencils, printing, writing utensils, etc.

Inactive Publication Date: 2007-07-04
KOTOBUKI & CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problems of the conventional dual-jaw propelling pencil, so the first object of the invention is to provide a dual-chuck which is convenient to replace the defective lead-holding chuck with a new lead-holding chuck during the production process A mechanical pencil that can be easily disassembled to remove the broken lead if it becomes clogged

Method used

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  • Double clip head mechanical propelling pencil
  • Double clip head mechanical propelling pencil
  • Double clip head mechanical propelling pencil

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Embodiment Construction

[0033] The dual-jaw mechanical pencil according to the first embodiment of the present invention will be described with reference to FIGS. 1-14, wherein FIGS. 1 and 2 show the dual-jaw mechanical pencil, and FIG. 3-14 shows the dual-jaw mechanical pencil shown in FIG. 1-2. parts.

[0034] Referring to Fig. 1-2, the double chuck propelling pencil has a cylinder consisting of a front cylinder 1, a rear cylinder 2 and a clip 21, the rear of the front cylinder 1 is provided with a flange 1a, and the rear cylinder 2 The front end is in contact with the flange 1a. The front cylinder 1 and the rear cylinder 2 are rotatable relative to each other. The cylinder pen cap 3 is screwed into the front cylinder 1 front end. The cylinder pen cap 3 is detachable from the front cylinder 1 .

[0035] Referring to Figs. 11-14, the barrel pen cap 3 is provided with a connecting portion having an external thread 31 corresponding to the internal thread at the front end of the front cylinder 1, an...

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PUM

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Abstract

A double-chuck mechanical pencil comprises a barrel, a barrel cap detachably attached to a front end of the barrel, a lead tank inserted in the barrel, a feed chuck for feeding leads, combined with the lead tank, a sleeve bolster disposed on the front side of the feed chuck, and a holding chuck combined with the sleeve bolster. A holding chuck unit including the holding chuck and the sleeve bolster, and a feed chuck unit including the feed chuck and a sleeve can come into contact with each other in the barrel cap.

Description

technical field [0001] The invention relates to a double-head automatic pencil provided with a lead-feeding chuck for feeding lead and a lead-holding chuck for holding lead. Background technique [0002] Various dual-jaw mechanical pencils aimed at reducing lead loss have been proposed in recent years. The double-jaw mechanical pencil has a lead-feeding chuck and a lead-holding chuck. The traditional dual-jaw propelling pencil has a complicated structure, and is provided with a lead-feeding chuck mechanism and a lead-holding chuck mechanism, so there are the following problems. [0003] In the production process of the double-head mechanical pencil, if it is found that the barrel-shaped cap that needs to be finished is defective, it is difficult to replace the defective cap with a good-quality pen cap due to the complex structure of the double-head mechanical pencil and the supply of parts in a complete set. Barrel cap. Because structural conditions require parts to be as...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B43K21/00B43K21/033B43K29/02B43K21/16B43K21/22B43K21/24
CPCB43K21/22B43K21/24
Inventor 新井幸夫小高忠夫
Owner KOTOBUKI & CO LTD
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