CN103963513A - Fully-automatic mechanical pencil lead and lead-replaceable fully-automatic pencil - Google Patents

Abstract

The invention provides a fully automatic pencil movement and a fully automatic pencil with a fully automatic pencil movement. The fully automatic pencil movement includes a point cover part, a main body part and a storage core part, wherein the point cover part includes a point cover, a movable damper installed in the point cover and a damping spring sleeved on the movable damper; The main body part is installed in the tip sleeve part, and includes a lock ring and a clip set in the lock ring, and a clip spring and a steel ball movably installed near the front end of the clip are sleeved on the clip; the storage The core part includes a storage core tube and a connection part connected thereto, and the connection part is connected with the rear end of the tip sleeve part and matched with the rear end of the main body part; the lead core passes through the storage core tube and the connection part, and enters the The clip, and pass through the front end of the active damping for writing. The fully automatic pencil of the present invention can automatically compensate the worn lead core during writing, and the cores of the fully automatic pencil can be replaced with each other.

Description

Automatic pencil movement and replaceable core automatic pencil

technical field

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

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 can only add one lead (see patent 90210687.2), gradually increase the buffer mechanism and the retracting mechanism of the core protection tube (see patent 99236115.X.), the core can be ejected and withdrawn by pressing and pressing the button (see patent 200920196780.6), and has the core storage function (see patent 201120360444.8), etc. A series of products, production and sales have also increased year by year.

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 ordinary 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 its sales.

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 also one of the important reasons hindering the development of fully automatic pencils.

Therefore, if the structure of the full-automatic pencil can be further simplified, according to the standardization and modular design and manufacture of a general-purpose, serialized full-automatic pencil movement, the pen that is packed into this full-automatic pencil movement can be used like an ordinary pen. The ballpoint pen and the gel pen can be used by unplugging the pen cap or pressing the pen head out, continuous writing, and fully exerting the automatic compensation function; and this fully automatic pencil movement can be replaced with each other like the refills of ordinary ballpoint pens and gel pens ; and this fully automatic pencil movement can realize automatic assembly, so the development of fully automatic pencils will have a new leap forward.

Contents of the invention

The technical problem to be solved by the present invention is to provide a brand-new automatic pencil for the deficiencies in the above-mentioned prior art. This automatic pencil can automatically compensate for the worn lead core during writing, and the The movement can be replaced with each other, and the tip part of the automatic pencil movement can be retracted into the pen holder when not in use like an ordinary ballpoint pen, which can play a protective role. When it needs to be used, the automatic pencil can be activated by pressing the mechanism. The nib part of the movement protrudes out of the pen holder for direct writing, which can be continuously written until the effective part of the whole lead is used up.

According to one aspect of the present invention, a fully automatic pencil movement is provided. The fully automatic pencil movement includes a point cover part, a main body part and a storage core part, wherein the point cover part includes a point cover, installed on the The active damping in the tip sleeve and the damping spring sleeved on the active damping; the main body part is installed in the tip sleeve part, and includes a lock ring and a clip set in the lock ring, in the The clip is sleeved with a clip spring and a steel ball movably installed near the front end of the clip; the storage core part includes a storage core tube and a connection part connected thereto, and the connection part is connected to the back of the tip sleeve part. The end is connected and cooperates with the rear end of the main body part; the lead core passes through the storage core tube and the connecting part, enters the clip, and passes through the front end of the movable damping for writing.

According to one embodiment, the connection part includes joints respectively connected to the rear end of the tip sleeve part and the cartridge tube.

According to another embodiment, the connection part includes an outer tube sleeved on the outside of the core tube and connected to the rear end of the tip sleeve part, and is arranged in the core tube to closely fit with the core tube. A push rod, a push rod spring is provided between the outer tube and the push rod.

Preferably, a plurality of straight ribs are provided on the outer surface of the front end of the push rod to cooperate with the rear end of the locking ring, so as to drive the locking ring to move forward and backward.

Preferably, the rear end of the movable damper is provided with a rear end damping point.

Preferably, the portion of the lock ring corresponding to the steel ball is formed with an inner conical surface for the steel ball to roll.

According to another aspect of the present invention, a replaceable core type automatic pencil is provided, which includes a pen holder, a pen neck, a pen case, and a pen holder arranged on the pen case, wherein the pen holder and the pen neck are internally fixed Provided with a fully automatic pencil movement as described above. By adopting this technical scheme, a fixed full-automatic pencil can be obtained, which can be used by protecting the lead core through the pen cover and pulling out the pen cover.

According to still another aspect of the present invention, a replaceable core type automatic pencil is provided, which includes a pen holder, a pen clip arranged on the pen holder, a pen neck and a pressing mechanism, wherein the pen holder and the pen neck are equipped with Provided with a fully automatic pencil movement as described above. With this technical solution, a push-type automatic pencil can be obtained. When not in use, the pen tip of the movement can be retracted into the pen holder for protection. The nib part stretches out of the pen holder for writing.

According to one embodiment, the pressing mechanism includes a pressing head, a rotating wheel and a guide rail arranged in the pen shaft to cooperate with the pressing head, and also includes a pressing spring arranged in the front end of the pen neck, wherein the mechanism The rear end of the core storage part of the core cooperates with the runner and the front end of the tip sleeve part cooperates with the push spring.

According to another embodiment, the pressing mechanism includes a pressing head and a pressing core respectively matched with the rear end of the storage core part of the movement, and a pressing head and a pressing core arranged in the front end of the pen neck together with the tip cover part. The push spring matched with the front end of the pen holder, the push core includes an elastic boss that matches the pinch point set on the pen clip, and the side of the pen holder is provided with accommodating the pinch point and the elastic Boss windows.

In the present invention, the whole automatic pencil movement adopts a standardized and modularized design. When the automatic pencil movement is packed into a similar fixed ballpoint pen or gel pen, the length series of the core storage tube is the same as that of a fixed ballpoint pen or gel pen. Corresponding to the gel pen refill length series, the automatic pencil movement can be fixed by the rear positioning method. The pen cover can protect the exposed active damping and lead of the automatic pencil movement. You can write directly after pulling out the pen cover, and can fully Realize the automatic compensation function to write continuously until the effective part of the whole lead is used up. When the automatic pencil movement is loaded into a similar push-type ballpoint pen or gel pen, the length series of the core storage tube corresponds to the length series of the push-type ballpoint pen or gel pen refill. When not in use The nib part of the automatic pencil movement can be retracted to play a protective role in the pen neck. When it needs to be used, the nib part of the automatic pencil movement can be extended out of the pen neck by pressing the mechanism to write, and it can be written continuously until Until the effective part of the whole lead core is used up.

Description of drawings

Other features and advantages of the present invention will be better understood through the specific embodiments described in detail below in conjunction with the accompanying drawings. In the accompanying drawings, the same reference numerals identify the same or similar components, wherein:

Fig. 1 is the structural representation of the fully automatic pencil movement according to the preferred embodiment of the present invention;

Fig. 2 is the structural representation of the tip cover part in the fully automatic pencil movement of Fig. 1;

Fig. 3 is the structural representation of main part in the fully automatic pencil movement of Fig. 1;

Fig. 4 is the structural representation of storage core part in the fully automatic pencil movement of Fig. 1;

Fig. 5 is a schematic diagram of cooperation of the tip cover part, the main body part and the storage core part in the fully automatic pencil movement of Fig. 1;

Fig. 6 is the structural representation of fixed automatic pencil according to the present invention;

Fig. 7 is a schematic diagram of writing with a fixed automatic pencil in Fig. 6;

Fig. 8 is the schematic diagram of movable damping force when adopting fixed automatic pencil writing in Fig. 6;

Fig. 9 is a schematic diagram of automatic compensation after lead wear when using the fixed full-automatic pencil in Fig. 6 to write;

Fig. 10 is a schematic structural view of a push-type automatic pencil according to the present invention;

Fig. 11 is a schematic diagram of use when writing with a push-type fully automatic pencil in Fig. 9;

Fig. 12 is a schematic diagram of the push-type fully automatic pencil in Fig. 9 after the lead is retracted after writing;

Fig. 13 is a schematic structural view of a push-type fully automatic pencil capable of continuous core removal according to the present invention;

Fig. 14 is a schematic structural view of a push-type automatic pencil movement according to a preferred embodiment of the present invention;

Fig. 15 is a schematic structural view of the storage core part of the push type automatic pencil movement in Fig. 14;

Fig. 16 is a schematic diagram of the use of the push-type automatic pencil in Fig. 13 for continuous core writing;

Fig. 17 is a schematic diagram of the push-type automatic pencil in Fig. 13 after the lead is retracted after writing.

Explanation of reference signs

1, 7, 14 pen clips 2 pen sets

3, 8, 15 pen neck 31 pen neck inner hole

4, 6, 13 Pen holder 41 Pen holder inner hole

5, 12 movement 5A tip set parts

5B Body Parts 5C, 5E Reservoir Parts

5D lead core 51 tip set

511 tip sleeve inner ring groove 512 tip sleeve front end

513 tip sleeve front outer steps 514 tip sleeve inner steps

52 active damping 521 damping inner hole

522 rear end damping point 523 damping front end

53 damping spring 54 lock ring

541 lock ring rear end inner hole 542 lock ring front face

The inner conical surface of the front end of the 543 lock ring The rear end face of the 544 lock ring

55 clip 551 clip groove

552 spherical pit 553 clip rear end

554 clip front end 56 steel balls

57 sandwich spring 58 connector

581, 582 connector outer ring groove 583 connector inner hole

59 storage core tube 591 core storage tube inner hole

592 core tube rear end 61 guide rail

81 Steps in the inner hole of the front end of the pen neck 82 Press the inner hole of the pen neck

9, 16 press head 91 core storage tube outer tube

Outer ring groove at front end of 911 outer tube 912 inner hole at front end of outer tube

913 outer tube rear end 92 core tube push rod

921 Thin tube at the rear end of the push rod 922 Straight rib

923 push rod inner hole 924 push rod front end inner conical surface

93 push rod spring 10 wheels

11 push spring 111 push spring rear end

112 push spring front end 131 window

161 Inner hole of press head 141 Front end of pen holder

142 clip point 143 inner end face of clip

17 Press core 171 Press core inner hole

172 Elastic boss 173 Push core steps

18 Sheath

Detailed ways

The implementation and use of specific embodiments of the present invention are described in detail below. It should be understood, however, that the specific embodiments described are merely illustrative of specific ways to make and use the invention and do not limit the scope of the invention.

Referring first to Fig. 1 to Fig. 5, the fully automatic pencil movement 5 according to the present invention comprises a tip cover part 5A, a main body part 5B and a storage core part 5C, wherein the tip cover part 5A is installed in the tip cover 51 by a tip cover 51 The active damping 52 and the damping spring 53 sleeved on the active damping 52 are composed; the main body part 5B is installed in the tip sleeve part 5A, and includes a lock ring 54 and a clip 55 located in the lock ring 54, and the clip 55 A clip spring 57 and a steel ball 56 movably installed near the front end of the clip 55 are sheathed on it; the storage core part 5C includes a storage core tube 59 and a connection part connected thereto, and the connection part is connected to the tip sleeve part 5A. The rear end is connected and fitted with the rear end of the main body part 5B. In the embodiment shown in FIGS. 1 to 5, the connecting portion is a joint 58 connected to the rear end of the tip sleeve part 5A and the core tube 59 respectively. In the embodiment shown in FIGS. 10 to 17 , the connecting portion may have different configurations according to different requirements of functions, which will be described in detail below in conjunction with specific embodiments.

In the present invention, the movable damper 52 is an integrated design, and by combining the usual protective lead core 5D function and damping function into one, the original two or more parts can be simplified into one, and can be applied to a diameter of 0.5 And 0.7 lead cores of different specifications. In addition, in order to fix the damping spring 53, a retaining ring was originally needed, but this part is very small, so it becomes one of the difficulties in automatic assembly. The present invention simplifies the original two parts into one through the integrated design. It can be understood that the outer dimensions of the tip cover part 5A can be of two types, that is, the shape of the movable damper 52 can be bullet-shaped or needle-shaped, and the internal dimensions of the tip cover part 5A can be designed in series.

According to the present invention, the lock ring 54 in the main body part 5B is also designed in one piece. In the prior art, the lock ring is usually composed of two parts, and the part in contact with the steel ball is made of metal material, and the rest is made of plastic, because it needs directional assembly, which becomes one of the difficulties in automatic assembly. The optimized design can simplify the original two parts into one. It can be understood that the external dimensions of the clip 55 can be unified into one type, and the place for internally clamping the lead core 5D can be designed to be suitable for lead cores of different specifications with diameters of 0.5 and 0.7, and the external dimensions of the main part 5B can be One, the internal size is serialized design.

It can also be understood that the diameter dimension of the storage core part 5C can be one type, and the length dimension can be serialized.

The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

Implementation mode one:

As shown in Figure 6, the fully automatic pencil in this 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 fixed installations on the pen holder 4 and the pen holder 3 The inner automatic pencil movement is composed of 5.

1 to 5, the main body part 5B is loaded into the tip cover part 5A, and as shown in Figure 5, the inner ring groove 511 at the rear end of the tip cover 51 is closely matched with the outer ring groove 581 at the front end of the joint 58, and the rear end of the joint 58 The outer ring groove 582 at the end is matched with the inner hole 591 of the storage 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 complete automatic pencil Movement 5.

As shown in Figure 6, the rear end 592 of the storage core tube 59 of the automatic pencil movement 5 is fixed with the inner hole 41 at the end of the pen holder 4, and the front end 512 of the tip sleeve 51 passes through the inner hole 31 of the pen neck 3, so that it can move freely. The damping 52 and the lead 5D are exposed and can be written directly, and the movable damping 52 and the lead 5D can be protected after the pen cover 2 is covered.

As shown in FIG. 7 , during the writing process, the pen and the writing surface form a writing angle, usually between 50° and 70°, and 60° is shown as an example in the figure. The lead core 5D protrudes a certain length from the front end 523 of the movable damper 52 , and generally, the distance L between the front end 523 of the movable damper 52 and the writing surface is smaller than the aforementioned length. As shown in Figure 8, when the protruding part of the lead core 5D is gradually reduced due to writing wear, the distance between the front end 523 of the movable damper 52 and the writing surface is also correspondingly reduced, and the protruding part of the lead core 5D has not yet been worn out. Before, the front end 523 of the movable damper 52 has directly touched the writing surface. In this case, as shown in Figure 9, after the front end 523 of the movable damper 52 touches the writing surface, the movable damper 52 will retract a certain distance to the opposite direction of the nib, and at this time, the lead 5D and the clip 55 In the clamped state, when the clamping friction force between the clip 55 and the lead core 5D is greater than the friction force between the lead core 5D and the rear end damping point 522 of the movable damper 52, the lead core 5D is stationary, that is, the movable damper 52 When moving, this is equivalent to the length of the lead core 5D protruding from the front end 523 of the movable damper 52 to increase by a certain amount. When the movable damper 52 moves to the opposite direction of the nib, the damping spring 53 will be compressed accordingly to store energy. Once the front end 523 of the movable damper 52 leaves the writing surface during the writing interval, the movable damper 52 will be released by the damping spring 53. And move a certain distance in the direction of the pen tip. Under the action of friction between the rear end damping point 522 of the movable damper 52 and the lead core 5D, the lead core 5D will move a certain distance to the direction of the pen along with the movable damper 52, and at the same time, the lead core 5D will drive the clip 55 together Move toward the pen tip. Because the steel ball 56 on the outside of the front end of the clip 55 rolls forward along the front end inner conical surface 543 of the lock ring 54, the clip 55 will loosen and stop moving. Return to clamped state. The automatic compensation of the worn lead core can be realized by repeating the above process.

Implementation mode two:

As shown in Figure 10, 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 on the pen holder 6 and the pen neck. 8 is composed of a fully automatic pencil movement 5, wherein the pressing mechanism includes a pressing head 9 and a runner 10 and a guide rail 61 arranged in the pen holder 6 to cooperate with the pressing head 9, and also includes a pressing head arranged in the front end of the pen neck 8 Moving spring 11.

In this embodiment shown in Fig. 10 to Fig. 12, automatic pencil movement 5 can adopt the same structure as the first embodiment, and the rear end of storage core part 5C cooperates with running wheel 10 simultaneously and tip cover part 5A The front end cooperates with push spring 11.

Specifically as shown in Figure 11, the rear end 592 of the core tube 59 of the automatic pencil movement 5 cooperates with the runner 10 in the pen holder 6, and the front outer step 513 of the tip sleeve 51 of the automatic pencil movement 5 cooperates with the press. The rear end 111 of the moving spring 11 cooperates, and the front end 112 of the pressing spring 11 cooperates with the front end inner hole step 81 of the pen neck 8 . During use, press the pressing head 9 to make the runner 10 cooperate with the guide rail 61 inside the penholder 6, push the runner 10 to move toward the nib direction, and push the automatic pencil movement 5 to move toward the nib direction through the runner 10. The front end 512 of the tip sleeve 51 of the automatic pencil movement 5 passes through the inner hole 82 of the pen neck 8, so that the movable damping 52 and the lead core 5D are exposed and can be directly written; after use, press the pressing head 9 again to make the runner 10 cooperates with the guide rail 61 inside the pen holder 6, under the force of the push spring 11, the runner 10 is moved to the direction of the press head 9, and the automatic pencil movement 5 also moves to the direction of the press head 9, so that the movable damping 52 , The lead 5D is all retracted in the pen neck 8 to protect the movable damper 52 and the lead 5D.

Implementation mode three:

As shown in Figure 13, the automatic pencil in the present embodiment is another form of the push-type automatic pencil, which consists of a pen holder 13, a pen clip 14 located on the pen holder 13, a pen neck 15, a push mechanism and The full-automatic pencil movement 12 that is installed 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.

14 and 15, the fully automatic pencil movement 12 in this embodiment is a push-type fully automatic pencil movement, and the connection part of the storage core part 5E is designed to include a sleeve socketed outside the storage core tube 59. The outer tube 91 connected to the rear end of the tip sleeve part 5A, and the push rod 92 arranged in the storage core tube 59 and closely matched with the storage core tube 59, and the outer tube 91 and the push rod 92 are arranged Push rod spring 93 is arranged. The main part 5B is put into the tip sleeve part 5A, and the inner ring groove 511 at the rear end of the tip sleeve 51 is closely matched with the outer ring groove 911 at the front end of the outer tube 91, and the thin tube 921 at the rear end of the push rod 92 passes through the front end of the outer tube 91 After the inner hole 912 and the push rod spring 93, it is closely matched with the inner hole 591 of the storage core tube 59. The outer circular surface of the front end of the push rod 92 is provided with several straight ribs 922, which can transitionally fit with the rear end inner hole 541 of the lock ring 54 of the main body part 5B, so that the front and rear movement of the push rod 92 can drive the main part 5B forward and backward. move. The lead core 5D can pass through the inner hole 923 of the push rod 92 from the inner hole 591 of the core tube 59, enter the groove 551 in the middle of the clip 55, and then enter the inner hole 521 of the movable damper 52 to form a complete full-body Mechanical pencil movement 12.

As shown in Figure 13, the rear end 913 of the outer tube 91 of the automatic pencil movement 12 is closely matched with the inner hole 171 of the pressing core 17, and the rear end 592 of the core storage tube 59 is closely matched with the inner hole 161 of the pressing head 16, In this way, when the pressing head 16 is pressed, the pressing head 16 will push the storage core tube 59 and drive the whole automatic pencil movement 12 to move toward the nib direction, and the pressing core 17 closely matched with the outer tube 91 of the automatic pencil movement 12 It also moves towards the direction of the pen simultaneously. When the elastic boss 172 of the pressing core 17 reaches the window 131 of the penholder 13, the elastic boss 172 of the pressing core 17 can be embedded in the window 131 of the penholder 13, so that the position of the automatic pencil movement 12 can be fixed. The tip sleeve 51 of the movement 12, and the movable damping 52 and the lead 5D can be exposed to write directly; The pinch point 142 can push the elastic boss 172 of the pressing core 17 out of the window 131 of the pen holder 13, so that the fully automatic pencil movement 12 loses the support point for positioning. At this time, under the force of the pressing spring 11, the entire fully automatic pencil The movement 12 moves toward the pressing head 16 until the step 173 of the pressing core 17 touches the inner end surface 143 of the pen clip 14, so that the movable damper 52 and the lead 5D are all retracted into the pen neck 15 to protect the movable damper 52 and lead 5D.

Advantageously, two or more lead cores 5D can be placed in the storage tube 59 of the automatic pencil movement 12 of this embodiment. Referring to Fig. 14, when the first lead 5D is worn to a certain residual length in the writing state, the push rod 92 can be pushed toward the pen head by pressing the press head 16, and then the push rod 92 drives the main body Part 5B moves toward the tip of the pen. At this time, the clip 55 in the main body part 5B and the lead core 5D are in a clamped state, and because the clamping friction force between the clip 55 and the lead core 5D is greater than the friction between the lead core 5D and the rear end damping point 522 of the movable damper 52 Force, as the main body part 5B moves toward the direction of the nib, the lead 5D also moves toward the direction of the nib at the same time. When the front end face 542 of the lock ring 54 of the main body part 5B hits the front inner step 514 of the tip sleeve 51, the main body part 5B will stop moving, and the push rod 92 continues to move toward the nib direction under the promotion of the storage core tube 59. The front end inner conical surface 924 of the push rod 92 is in contact with the rear end 553 of the clip 55 in the main body part 5B, and pushes the clip 55 to continue moving toward the nib, so that the rear end 553 of the clip 55 can be gradually closed. Because the outside of the front end of the clip 55 is provided with a spherical pit 552, the steel ball 56 is placed inside, and the steel ball 56 contacts the inner conical surface 543 of the front end of the locking ring 54 and moves along the inner conical surface of the front end of the locking ring 54. The front end 554 of the clip 55 is gradually opened. At this time, the clip 55 and the lead core 5D are in a relaxed state, and the lead core 5D stops moving under the frictional force of the rear end damping point 522 of the movable damper 52 . After the pressing force on the storage core tube 59 disappears, the storage core tube 59 and the push rod 92 will move to the opposite direction of the nib under the action of the push rod spring 93 . Since the outer circular surface of the front end of the push rod 92 is provided with several straight ribs 922, it can transitionally fit with the rear end inner hole 541 of the lock ring 54 of the main body part 5B. As the push rod 92 moves backward, the main body part 5B can be driven move backwards. At this time, the clip 55 and the lead core 5D in the main body part 5B are in a relaxed state, and the lead core 5D is in a static state under the frictional force of the rear end damping point 522 of the movable damper 52, and as the push rod 92 continues to move backward Move, the front end inner cone 924 of the push rod 92 is out of contact with the rear end 553 of the clip 55, and the rear end surface 544 of the lock ring 54 will stop moving when it hits the front end surface 912 of the outer tube 91, and the inner part of the body part 5B Under the effect of the sandwich spring 57, the clip 55 continues to move backwards, while the rear end 553 of the clip 55 gradually opens, and the front end 554 of the clip 55 gradually closes, and the steel ball 56 and the lock ring on the outside of the front end of the clip 55 Under the action of the inner conical surface 543 at the front end of the 54, the lead core 5D is finally clamped by the groove 551 in the middle of the clip 55. By repeating the above-mentioned process, the second lead core in the storage tube can push out the remaining first lead core to continue writing.

The above has disclosed the technical content and technical characteristics of the present invention through specific implementation methods. However, it can be understood that under the creative idea of the present invention, those skilled in the art can understand the various features disclosed above and those not explicitly shown here. There are various changes and improvements in the combination of features, and these changes and improvements all belong to the protection scope of the present invention. For example, according to the automatic pencil movement of the present invention can be used interchangeably, in the second embodiment, except the automatic pencil movement 5 of the first embodiment, also can adopt the third embodiment. The push-type automatic pencil movement 12 is schematically shown in FIG. 10 . Moreover, the structure of the automatic pencil in each embodiment can also be changed accordingly according to needs, and it is not necessary to completely correspond to the specific features described above. In addition, when the lead of the above-mentioned automatic pencil is used up, there are many ways to add lead for continued use. These ways include but are not limited to:

Method 1: Take out the automatic pencil movement, add the lead by hand, and then put it back into the pen to continue to use;

Method 2: Take out the automatic pencil movement and replace it with a new automatic pencil movement, which can be used immediately. The replaced automatic pencil movement is manually added with lead for standby;

Method 3: Press and hold the press head of the pen to loosen the clip in the automatic pencil movement, insert the lead from the front end of the pen head through the inner hole of the movable damping into the interior of the automatic pencil movement, and release the press of the pen Ready to use after the head;

Method 4: Add more than two lead cores into the core storage tube of the automatic pencil movement, and replace the second lead core by pressing the pen's pressing head to continuously eject the core.

Claims (10)

1. A fully automatic pencil movement (5, 12), comprising a tip cover part (5A), a main body part (5B) and a storage core part (5C, 5E), characterized in that: The pointed sleeve part (5A) includes a pointed sleeve (51), a movable damper (52) installed in the pointed sleeve (51), and a damping spring (53) sleeved on the movable damper (52); The main body part (5B) is installed in the tip sleeve part (5A), and includes a lock ring (54) and a clip (55) arranged in the lock ring (54), and the clip (55) A clip spring (57) and a steel ball (56) movably installed near the front end of the clip (55) are sleeved on the top; The storage core parts (5C, 5E) include a storage core tube (59) and a connection part connected thereto, and the connection part is connected with the rear end of the tip sleeve part (5A) and connected with the main body part (5B ) back-end fit; The lead core (5D) passes through the storage core tube (59) and the connection part, enters the clip (55), and passes through the front end of the movable damper (52) for writing. 2. The full-automatic pencil movement according to claim 1, characterized in that, the connecting portion of the core storage part (5C) comprises a rear end and the core storage tube respectively connected to the tip cover part (5A) (59) is connected to the joint (58). 3. The full-automatic pencil movement according to claim 1, characterized in that, the connecting portion of the core storage part (5E) comprises a sleeve socketed on the outside of the core storage tube (59) and the pointed sleeve part ( 5A) the outer tube (91) that is connected to the rear end, and the push rod (92) that is arranged in the described storage core tube (59) and closely fits with the storage core tube (59), in the described outer tube (91) A push rod spring (93) is arranged between the push rod (92). 4. The fully automatic pencil movement according to claim 3, characterized in that, the outer circular surface of the front end of the push rod (92) is provided with a plurality of straight ribs (922), so as to be connected with the locking ring (54) backend fit. 5. The automatic pencil movement according to any one of the preceding claims, characterized in that, the rear end of the movable damper (52) is provided with a rear end damping point (522). 6. The automatic pencil movement according to claim 5, characterized in that, the part of the locking ring (54) corresponding to the steel ball (56) is formed with an inner conical surface for the rolling of the steel ball (56) (543). 7. A replaceable core type automatic pencil, comprising a pen holder (4), a pen neck (3), a pen case (2) and a pen clip (1) located on the pen case, characterized in that the pen holder (4) and the pen holder The full-automatic pencil movement (5, 12) as described in any one of claims 1-6 is fixedly installed in the pen neck (3). 8. A replaceable core-type automatic pencil, including a pen holder (6, 13), a pen clip (7, 14) arranged on the pen holder (6, 13), a pen neck (8, 15) and a pressing mechanism, its characteristics In that, the full-automatic pencil movement (5, 12) according to any one of claims 1-6 is installed in the pen holder (6, 13) and the pen neck (8, 15). 9. The replaceable core type full-automatic pencil according to claim 8, characterized in that, the pressing mechanism includes a press head (9) and a button that is arranged in the penholder (6) and cooperates with the press head (9). The runner (10) and the guide rail (61) also include a push spring (11) arranged in the front end of the pen neck (8), wherein the storage core parts of the automatic pencil movement (5, 12) ( 5C, 5E) the rear end cooperates with the runner (10) and the front end of the tip sleeve part (5A) cooperates with the push spring (11). 10. The replaceable core type fully automatic pencil according to claim 8, characterized in that, the pressing mechanism comprises core storage parts (5C, 5E) respectively connected to the fully automatic pencil movement (5, 12) The press head (16) and press core (17) that match the rear end of the back end, and the press spring (11) that is arranged in the front end of the pen neck (15) and cooperates with the front end of the tip cover part (5A) , the press core (17) includes an elastic boss (172) that matches the pinch point (142) provided on the pen clip (14), and the side of the pen holder (13) is provided with accommodating The pinch point (142) and the window (131) of the elastic boss (172).