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Automatic pencil

A technology for propelling pencils and lead cores, applied to propelling pencils, printing, writing utensils, etc., which can solve the problems of not sharpening the lead and not being able to effectively protect the lead, and achieves simple structure, wide application range, simple and convenient operation Effect

Inactive Publication Date: 2014-08-06
邓小龙
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But above-mentioned technical scheme still can't avoid the problem that lead core is easy to break, can't effectively protect lead tip, the waste that lead tip breaks once will be far greater than the saving effect that above-mentioned technical scheme uses waste lead core as far as possible, and, above-mentioned The technical solution does not solve the problem of how to sharpen and sharpen the lead
[0005] In the face of the development trend of increasingly higher requirements for the convenience, practicability and economy of pencil stationery, the above-mentioned traditional pencils, including the existing mechanical pencils, have exposed various drawbacks, and are increasingly unable to meet the needs of users. There is an urgent need for improvement, or there is an updated product to overcome the various defects of the existing pencils. In view of this situation, the designer uses his years of technical experience in related fields and rich professional knowledge to continuously develop and improve. And through a large amount of practical verification, proposed the technical scheme of mechanical pencil of the present invention

Method used

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Experimental program
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Effect test

Embodiment 1

[0084] Please refer to figure 1 and figure 2 ,in figure 1 It is a schematic diagram of the overall appearance of the mechanical pencil of the present invention, figure 2 It is a schematic diagram of the overall internal structure of Embodiment 1 of the mechanical pencil of the present invention. As shown in the figure, the mechanical pencil 100 of the present invention mainly includes a nib 1, a pen holder 2, and a cap 3. The nib is installed on the front end of the pen holder 2, and the pen cap 3 is installed on the pen holder 2. the rear end, so that the nib, pen holder, and pen cap constitute the pen-shaped appearance of the entire mechanical pencil 100. Inside the pen holder 2, an inner lead device 4 and an outer lead device 5 are installed, and the lead 200 is installed in the inner pusher. In the device 4, the inner push lead device 4 is installed inside the outer push lead device 5, and is fixedly connected with the outer push lead device, and the inner push lead de...

Embodiment 2

[0103] Please refer to Figure 8, is a schematic diagram of the overall internal structure of the second embodiment of the mechanical pencil of the present invention. Most of the structure of the mechanical pencil 100 of the second embodiment is the same as that of the first embodiment above. The upper stopper 22', the upper stopper 22' is detachably installed on the inner wall of the upper part of the pen holder, its installation position and function are the same as the upper stopper 22 of the pen holder in Embodiment 1, the only difference is that it can be removed from the pen holder. Disassemble. The connection mode of upper stop piece 22 ' and the pen container inwall can be common threaded connection. By virtue of the detachable design of the upper stopper 22' of this embodiment, when installing the outwardly pushing lead device 5 into the pen holder 2, it can be installed inwardly from the top of the pen holder 2, specifically, from the top of the pen holder 2 in orde...

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PUM

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Abstract

A mechanical pencil (100) includes a pencil head (1); a barrel (2), one end of which is connected with the pencil head (1); an outer lead-core delivering device (5) which is mounted in the barrel (2) and used for controlling a lead-core (200) to protrude out of or retract into the pencil head (1); an inner lead-core delivering device (4) which is mounted in the outer lead-core delivering device (5) and used for continuously delivering and clamping the lead-core (200); a pencil cap (3) having a first pushed portion and a second pushed portion, wherein the first pushed portion is connected with the inner lead-core delivering device (4) so as to actuate it and the second pushed portion is connected with the outer lead-core delivering device (5) so as to actuate it. In addition, the mechanical pencil (100) according to the invention may also include a lead-core sharpening device (14) on the pencil head (1) for sharpening the lead-core (200) as required. The mechanical pencil (100) according to the invention can prevent the lead-core (200) from being broken.

Description

technical field [0001] The invention relates to a pencil, in particular to a mechanical pencil. Background technique [0002] There are many types of pencils. Traditional pencils are generally thick-core pencils, such as ordinary wooden pencils and combined movable head pencils. Pencils can automatically produce lead and generally have a thinner lead, which belongs to the thin-core pencil. [0003] The above-mentioned existing various pencils have their own advantages and disadvantages. Traditional wooden pencils are inconvenient to use, and it is troublesome to cut the lead. The wood consumed to make this type of pencil is more, resulting in a waste of resources; In the early stage of use, there is no need to cut, but the waste of lead is still large in the later period of use; the new type of mechanical pencil is usually thin lead type, although it does not need to be cut, but it is very easy to break, especially if you are not careful when not in use, the tip of the pen ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B43K21/00B43K21/08B43K21/22B43K24/08B43K29/06
CPCB43K21/22B43K29/06B43K21/02B43K24/084B43K21/00
Inventor 邓小龙
Owner 邓小龙