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Fully-automatic mechanical pencil lead and lead-replaceable fully-automatic pencil

A technology of fully automatic pencils and movement, applied in mechanical pencils, printing, writing utensils, etc., can solve the problems that hinder the development of fully automatic pencils, rely on labor, and cannot realize automatic assembly

Active Publication Date: 2014-08-06
SHANGHAI M&G STATIONERY INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to people's usage habits and limited understanding of the functions of automatic pencils, they have not jumped out of the concept of ordinary mechanical pencils for a long time, and many people still use automatic pencils as general mechanical pencils.
In addition, full-automatic pencils have many parts, complex structures, difficult assembly, and high cost, which makes the retail price correspondingly high. Without highlighting their functions, people choose more ordinary propelling pencils, which in turn affects increased sales
[0004] In addition, the production and manufacture of fully automatic pencils is a labor-intensive industry, and its product assembly is all dependent on manual labor. It is still impossible to realize automatic assembly, which is one of the important reasons hindering the development of fully automatic pencils.

Method used

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  • Fully-automatic mechanical pencil lead and lead-replaceable fully-automatic pencil
  • Fully-automatic mechanical pencil lead and lead-replaceable fully-automatic pencil
  • Fully-automatic mechanical pencil lead and lead-replaceable fully-automatic pencil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0078] Such as Image 6 As shown, the full-automatic pencil in the present embodiment is a fixed type, which consists of a pen holder 2, a pen clip 1 located on the pen holder 2, a pen neck 3, a pen holder 4, and a full body fixedly installed in the pen holder 4 and the pen holder 3. The automatic pencil movement consists of 5 components.

[0079] combine Figure 1 to Figure 5 , the body part 5B is packed into the tip cover part 5A, and as Figure 5 As shown, the inner ring groove 511 at the rear end of the tip sleeve 51 is closely matched with the outer ring groove 581 at the front end of the joint 58 , and the outer ring groove 582 at the rear end of the joint 58 is matched with the inner hole 591 of the core tube 59 . The lead core 5D passes through the inner hole 583 of the connector 58 from the inner hole 591 of the core storage tube 59, enters the groove 551 in the middle of the clip 55, and then enters the inner hole 521 of the movable damper 52, thereby forming a com...

Embodiment approach 2

[0083] Such as Figure 10 As shown, the fully automatic pencil in this embodiment is a push type, which consists of a pen holder 6, a pen holder 7 arranged on the pen holder 6, a pen neck 8, a push mechanism and a pen holder installed in the pen holder 6 and the pen neck 8. The fully automatic pencil movement 5 is composed of, wherein, the pressing mechanism includes a pressing head 9, a runner 10 and a guide rail 61 arranged in the pen holder 6 to cooperate with the pressing head 9, and a pressing spring 11 arranged in the front end of the pen neck 8 .

[0084] exist Figure 10 to Figure 12 In the shown embodiment, the fully automatic pencil movement 5 can adopt the same structure as the first embodiment, while the rear end of the storage core part 5C cooperates with the runner 10 and the front end of the tip sleeve part 5A cooperates with the push spring. 11 fits.

[0085] Specific as Figure 11 As shown, the rear end 592 of the storage core tube 59 of the automatic penc...

Embodiment approach 3

[0087] Such as Figure 13 As shown, the fully automatic pencil in the present embodiment is another form of the push-type fully automatic pencil, which consists of a penholder 13, a pen clip 14 located on the penholder 13, a pen neck 15, a pressing mechanism and a The full-automatic pencil movement 12 in pen holder 13 and pen neck 15 forms. Wherein, the pressing mechanism in this embodiment includes a pressing head 16 and a pressing core 17 respectively matched with the rear end of the storage core part 5E of the fully automatic pencil movement 12, as well as being arranged in the front end of the pen neck 15 with the tip sleeve. The push spring 11 matched with the front end of the component 5A, the push core 17 includes an elastic boss 172 matched with the grip point 142 provided on the pen holder 14, and the side of the penholder 13 is provided with accommodating grip points 142 and the window 131 of the elastic boss 172.

[0088] combine Figure 14 with Figure 15, the ...

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Abstract

The invention provides a fully-automatic mechanical pencil lead and a fully-automatic pencil with the same. The fully-automatic mechanical pencil lead comprises a sharp sleeve part, a body part and a lead storage part, the sharp sleeve part comprises a sharp sleeve, a movable damping part mounted in the sharp sleeve and a damping spring sleeving the movable damping part, and the body part is mounted in the sharp sleeve part and comprises a retainer, a clamping piece arranged in the retainer, a clamping piece spring sleeving the clamping piece and steel balls movably mounted close to the front end of the clamping piece. The lead storage part comprises a lead storage tube and a connecting portion connected with the same, and the connecting portion is connected with the rear end of the sharp sleeve part and matched with the rear end of the body part. One pencil lead penetrates the lead storage tube and the connecting portion, enters the clamping piece and penetrates out of the front end of the movable damping part for writing. The fully-automatic pencil has the advantages that the worn pencil lead can be compensated automatically during writing, and the mechanical leads of the fully-automatic pencil can be replaced mutually.

Description

technical field [0001] The present invention generally relates to a fully automatic pencil, in particular to a mechanical pencil capable of automatically compensating for worn lead cores during writing, and the cores of the fully automatic pencil can be replaced with each other. Background technique [0002] In the early 1980s, Germany invented the automatic pencil (also known as the automatic compensation mechanical pencil). Its parts are basically made of metal materials, and there are many parts, complex structure, and high processing difficulty, so it is difficult to promote. Afterwards, Japan invented the fully automatic pencil mainly based on plastic parts (seeing patent JP601700004992), which made the fully automatic pencil gradually popularized. my country began mass production and sales of fully automatic pencils in the early 1990s. After nearly 30 years of development, fully automatic pencils have changed from the simplest ones, which need to add lead by hand and c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43K21/22B43K21/02
Inventor 陈湖雄姚鹤忠李树荣
Owner SHANGHAI M&G STATIONERY INC
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