mechanical pencil

Abstract

The present invention relates to a pen, and in particular to a mechanical pencil and an operating method thereof. The position state of a tool body having two position states, namely, core return and centering, is determined by the displacement of an adjustment member provided in an outer rod, and the adjustment member relatively stabilizes the two position states, namely, core return and centering, via a positioning groove, a reset member, and a control member, and the reset member is driven by the tool body to continuously apply a sustained force to the adjustment member, relatively stabilizing the state when the displacement member on the adjustment member is located at the core return destination, and when the displacement member moves to the centering destination in the positioning groove, the control member restricts the displacement member, thereby stabilizing the centering position state.

Description

[Technical Field]

[0001] The present invention relates to a pen. [Background technology]

[0002] With the rapid development of the times, touch-sensitive pens have begun to appear on the market, but some touch pens have relatively complex structures or only have touch-sensitive pen re-repositioning functions, and are unable to achieve both pull-up and touch-sensitive re-repositioning. CN20201152192.6 discloses a 360-degree touch mechanism and a pen using the same, which realizes 360-degree touch-sensitive pen re-repositioning and achieves excellent near-automatic re-repositioning functionality. The re-repositioning method is highly effective, further reflecting the rapid changes of the new era and the major upgrades in pen operation modes, greatly improving people's pen user experience and realizing better intelligence in mechanical technology. However, although the joint bearing used in this method is the most stable and common structure among 360-degree rotation mechanisms in today's society, this mature technology is too expensive and difficult to manufacture for 360-degree touch-sensitive pen re-repositioning.

[0003] The lead return method of the cited document can be achieved in multiple ways. Although such an innovative structural design is very effective, the actual lead return by touch requires a strong touch force, and on the premise of ensuring stability during use, it is not possible to achieve true lead return by a minor touch. Summary of the Invention [Means for solving the problem]

[0004] An object of the present invention is to provide a mechanical pencil that is both flexible and stable, has a high yield rate when mass-produced, and allows lead retraction by both touching and pulling up.

[0005] In order to achieve the above object of the invention, the present invention employs the following technical means: A mechanical pencil comprising an outer rod, an adjustment member, a tool body, a reset member, and a control member, wherein the adjustment member is provided with a displacement member that is movable within a positioning groove, and the positional state of the tool body, which has two positional states, namely, re-leading and centering, is determined by displacement of the adjustment member provided within the outer rod, and the adjustment member relatively stabilizes the two positional states, namely, re-leading and centering, via the positioning groove, reset member, and control member, and the reset member relatively stabilizes the state when the displacement member on the adjustment member is positioned at the re-leading destination, and when the displacement member moves into the positioning groove to the centering destination, the control member restricts the displacement member, thereby stabilizing the centering positional state, and the re-leading method at least includes an external force affecting the movement of the control member, and when the displacement member is released from the restriction of the control member, the displacement member moves under the influence of the reset member to achieve re-leading.

[0006] The present invention further includes a positioning member, and the outer rod is provided with a touch assembly, and the touch assembly is driven to move the control member to achieve centering back, and the positioning member is provided with a positioning groove, and the positioning groove is provided with a centering boss and a centering back switching wall; The displacement member is released from the restriction of the control member by any of the following configuration means: The control member is provided with a control lever, and the displacement member can achieve centering back through the following five means: 1) As the first core return means, a position limiting boss is provided on the control lever, and a switching long wall is provided in the positioning groove, and the position limiting boss provides a limit to the displacement member instead of the control lever, and when the core is returned, the displacement member moves up or down to bypass the limit of the position limiting boss via the switching long wall, and then returns to the core return destination via the core return switching wall; 2) As a second core return means, a position limiting boss is provided on the control lever, and a switching long wall is further provided in the positioning groove, the position limiting boss provides a limit to the displacement member instead of the control lever, and the position limiting boss is provided with a fall assisting slope, and the displacement member moves up or down to reach the upper or lower side of the position limiting boss via the switching long wall, and then overcomes the limit of the position limiting boss via the fall assisting slope, and then returns to the core return destination via the core return switching wall; 3) As a third core returning means, the control lever is further provided with a position limiting boss and a fall control slope, and the position limiting boss limits the displacement member instead of the control lever, and when the control lever moves downward, the displacement member moves upward under the influence of the biasing force of the reset member, and returns to the core returning destination with the assistance of the fall control slope; 4) The core return is realized by the movement control, and when the control member is forced to move by an external force and the displacement member is released from the restriction of the control member, the displacement member moves downward or upward under the influence of the reset member, and the control member releases the restriction on the displacement member, and the displacement member returns to the center return destination via the core return switching wall. 5) The centering is achieved by reverse pushing, and the displacement member and / or centering boss are provided with a reverse pushing auxiliary slope. When there is no stuck point, the adjustment member is pulled by an external force and moved downward, and the displacement member is released from the restriction of the centering boss via the reverse pushing auxiliary slope and returns to the centering destination.

[0007] Furthermore, the adjusting member is further provided with a lateral pushing portion, the outer rod is provided with a lateral pushing groove for accommodating the slide of the lateral pushing portion, the positioning groove is further provided with a retaining boss, and a fall-back passage is further provided between the position limiting boss and the retaining boss or between the inner wall of the outer rod and the position limiting boss, The positioning groove is further provided with a centering position limiting wall and a centering return auxiliary wall, As one of the core return means using lateral pressure, when the lateral pushing portion moves the adjustment member further downward due to external force, the displacement member continues to move downward, and then the displacement member bypasses the restriction of the position limiting boss via the core return auxiliary wall on the positioning groove, and then returns to the core return destination due to the repulsive force of the reset member.

[0008] Further, the touch assembly includes a position limiting member, a touch ring, and a touch cover, the position limiting member passing through the touch cover and interconnected with the control member, the control member moving following the position limiting member, when the touch ring is pressed by an external force, the touch ring presses the touch cover, which in turn presses the control member, the control member moves the displacement member inward, and further detaches the displacement member from the centering boss, so that the displacement member returns to the centering destination via the reset member.

[0009] Furthermore, the touch assembly can be realized through at least the following three ways: 1) The first method is that the touch assembly includes a position limiting member, a touch ring, and a touch cover, the position limiting member is interconnected with the control member through the touch cover, the control member moves following the position limiting member, the touch cover is interconnected with an outer rod, the touch ring is located between the position limiting member and the touch cover, and touch-assisting inclined rings are provided under the position limiting member, above the touch ring, under the touch ring and / or above the touch cover; 2) A second method in which a connecting body is provided on the outer rod, the touch assembly includes a position limiting member, a touch ring, and a touch cover, the position limiting member passes through the touch cover and is connected to the connecting body, the touch cover passes through the connecting body and is connected to or hits the control member, and when the touch cover moves downward, the control member is also pressed and moved downward, the touch ring is located between the position limiting member and the touch cover, and touch-assisting inclined rings are provided below the position limiting member, above the touch ring, below the touch ring, and / or above the touch cover; 3) The third method is that the touch assembly includes a position limiting member and a touch ring, the position limiting member is interconnected with the control member through the outer rod, the control member moves following the position limiting member, the touch ring is located between the position limiting member and the outer rod, and the position limiting member, the touch ring, the touch ring and / or the outer rod are provided with a touch-assisting inclined ring.

[0010] Furthermore, at least the following three means can be adopted as a solution for moving the displacement member from the centering back point to the centering point within the positioning groove: 1) A first means for providing a long transition wall in the positioning groove, and a centering assist slope at one end of the centering boss that is close to the centering destination and / or at one end of the displacement member that is close to the centering destination, the displacement member itself having forward and backward deformation bending ability, so that when the displacement member passes through the centering boss, it can climb over the centering boss and reach the centering destination by means of the centering assist slope and the deformation bending ability of the displacement member; 2) A second means for providing a switching long wall and a centering slide-off wall in the positioning groove, a centering guide wall being further provided on the centering boss on the side closer to the centering destination, and a centering passage being further provided between the switching long wall and the centering boss, such that when the displacement member moves from the centering destination, it is guided by the centering guide wall into the centering passage and then reaches above or below the centering destination via the switching long wall, and when the external force is released, the displacement member falls back into the centering destination; 3) A third means in which a switching long wall is provided in the positioning groove, a centering slide-off wall is provided in the centering boss, a centering passage is further provided in the centering boss on the side closer to the centering destination, when the displacement member moves from the centering destination, it directly enters the centering passage and then reaches above or below the centering destination via the switching long wall, and at this time, when the external force is released, the displacement member falls back into the centering destination.

[0011] Furthermore, the displacement member has the following two stable positional relationships within the positioning groove: a center-return state in which the displacement member is affected by the biasing force of the reset member and is positioned at the center-return end of the positioning groove; A centering state in which the displacement member is restricted by the control member, overcomes the biasing force of the reset member, and remains stably positioned at the centering destination within the positioning groove.

[0012] The displacement member includes at least eight means for resolving leftward or rightward movement within the positioning groove; 1) A first solution, in which a movable groove is provided in the displacement member, and a slide bead is provided between the movable groove and the positioning groove, and the slide bead directly contacts the positioning groove instead of the displacement member; 2) A second solution in which the displacement member is further provided with a displacement locking protrusion and a slide bead groove or a rotation boss, a slide bead is further provided between the slide bead groove and the positioning groove, a rotation member is further provided on the rotation boss, one end of the rotation member is covered by the rotation boss, the rotation member is rotatable relative to the rotation boss, a displacement member is provided on the other end of the rotation member, and the displacement member, slide bead or displacement locking protrusion directly contacts the positioning groove instead of the displacement member; 3) A third solution in which the displacement member is further provided with a displacement locking protrusion and a sliding bead groove or a rotating boss, a sliding bead is further provided between the sliding bead groove and the positioning groove, a rotating member is further provided on the rotating boss, one end of the rotating member is covered by the rotating boss, the rotating member is rotatable relative to the rotating boss, and the other end of the rotating member is provided with a displacement member, the displacement member, the sliding bead or the displacement locking protrusion directly contacts the positioning groove instead of the displacement member, and the displacement member itself has a certain left and right deformation bending ability and can be bent within a certain width, so that when the displacement member moves into the positioning groove, it can move left and / or right, provided that the adjustment member itself does not move; 4) A fourth solution in which the displacement member is further provided with a displacement locking protrusion and a sliding bead groove or a rotating boss, a sliding bead is further provided between the sliding bead groove and the positioning groove, a rotating member is further provided on the rotating boss, one end of the rotating member is covered by the rotating boss, the rotating member is rotatable relative to the rotating boss, and the other end of the rotating member is provided with a displacement member, the displacement member, the sliding bead or the displacement locking protrusion directly contacts the positioning groove instead of the displacement member, and when leftward and rightward movement is required, the adjustment member moves leftward and / or rightward; 5) A fifth solution is provided in which the displacement member is independent from the adjustment member and forms an independent member, the displacement member is further provided with a displacement locking protrusion, a sliding bead groove, a movable groove or a rotation boss, a sliding bead is further provided between the movable groove or sliding bead groove and the positioning groove, the rotation boss is further provided with a rotating member, one end of the rotating member is covered by the rotation boss and the rotating member is rotatable relative to the rotation boss, the other end of the rotating member is provided with a displacement member, the displacement member, the sliding bead or displacement locking protrusion is in direct contact with the positioning groove instead of the displacement member, and the displacement member and the adjustment member are engaged by magnetic attraction, engagement, adhesive, screwing and / or third-party parts; 6) A sixth solution is provided in which the displacement member is further provided with a rotation boss, the rotation boss is further provided with a rotation member, one end of the rotation member is attached to the rotation boss, and the rotation member is rotatable relative to the rotation boss, and the other end of the rotation member is provided with a displacement part, and the displacement part directly contacts the positioning groove instead of the displacement member; 7) A seventh solution, in which the displacement member is further provided with a rotation through-hole, a rotation member rotatable relative to the rotation through-hole is further provided in the rotation through-hole, and a displacement part is provided at the other end of the rotation member, and the displacement part directly contacts the positioning groove instead of the displacement member; 8) The eighth solution is that with the assistance of a third party component, the displacement member can meet the requirements for left and right movement within the positioning groove.

[0013] Further, an auxiliary reset member is provided between the control member and the adjustment member, or an auxiliary reset member is provided between the control member and the outer rod, The structure that strikes the tool body has an adjustment hole, and an adjustable base is provided within the adjustment hole; A plurality of layers having height differences and being offset from each other are provided in the positioning groove; The positioning groove is provided with a mounting buffer groove and / or a centering error groove, When the positioning groove is provided in the outer rod, the outer rod is further provided with a centering-back position limiting wall, An extension rod may be further provided at the lower end of the control member, The displacement member generally has an inverted hook shape unless substituted with a sliding bead, a rotating member, or a third party component.

[0014] Furthermore, when a first core return means is adopted, the control member is further provided with a control switching wall, and a core return passage is further provided between the position limiting boss and the switching long wall and / or between the position limiting boss and the control switching wall; When the second centering means is employed, a centering passage is further provided between the control member and the switching long wall.

[0015] Furthermore, in the seventh solution, the adjustment member is provided with a rotation stabilizing boss, the displacement member is provided with a rotation collision boss for colliding with the rotating member to adjust it, and / or the positioning member is provided with a collision boss for colliding with the rotating member to adjust it, the rotating member is further provided with a rotation auxiliary base and / or a rotation mounting notch, and the centering boss, positioning member, displacement member, outer rod, the rotating member and / or rotation resistance boss are further provided with deformation notches.

[0016] Furthermore, the displacement member, the rotation boss, the rotation through hole and / or the rotation member may be provided with a rotation fastener.

[0017] Furthermore, the outer diameter of the touch ring is larger than the outer diameter of the outer rod, a touch slope is increased at the lower end of the touch ring, an auxiliary reset member is provided between the control member and the positioning member, and when the positioning groove is provided in the positioning member, a core return position limiting wall is provided in the positioning groove, or the inner wall of the outer rod has the same function as the core return position limiting wall. [Effects of the Invention]

[0018] The above technical means each have the following beneficial effects: 1) Comprehensive optimization and improvements have been made to the stability of the entire pen's centering state, the stability of the re-centering state, the stability and smoothness of the transition from the centering state to the re-centering state, the stability and smoothness of the re-centering state to the centering state, the overall appearance and stability, the compression and optimization of the entire internal space, and the adjustment of the touch force conversion rate. 2) By optimizing the structure, resetting can be achieved without the need for external tools, the minimum force required for touching has been reduced, the touch effect has been greatly improved, and the actual user experience has been greatly improved, making it possible to better achieve centering by touching. 3) By integrating the structure and optimizing resetting without requiring external tools, we have achieved cost reduction and reduced assembly difficulty. 4) In addition to increasing the reusability of the structure, it also realizes both pull-up and touch-up core re-centering. Both of these core re-centering methods have extremely high market value and excellent user experience, satisfying different user needs. 5) It can transmit more external touch force, and achieves better centering by touch. 6) The touch-based centering means of the present invention is more mature, and the actual touch force required is several times less than that of conventional means, making the touch more efficient and providing a superior touch effect. This means opens a new path, allowing the centering boss to bear most of the elastic force of the reset member, while using the control member to prevent the adjustment member or displacement member from leaving the centering slide-down wall. In this case, the control member is equivalent to a switch, bearing only the pressure created by the very small elastic force of the reset member. Simply by pulling out the control member and releasing the rebound path, the displacement member can be returned to its centering destination via the centering slide-down wall and the reset member. Furthermore, this means does not require any consideration of the surface friction of the control member. Therefore, the smaller the surface friction of the control member, the smaller the touch force required, making the touch more sensitive. 7) In a further technical proposal, the rotating boss adopts an eccentric method, which further increases the utilization rate of the internal space and ensures the stability of operation under the premise of further compressing the internal space.The method of using the rotating member and rotating boss can overcome the interference caused by gravity, completely solving the problem of the rotation or translation of the displacement member, greatly improving the integrity, durability and stability of the internal structure, and also greatly improving the overall smoothness of operation and touch sensitivity. 8) In a further technical solution, the touch slope is increased at the bottom of the touch ring to further improve the touch effect. 9) In a further technical proposal, if a positioning groove is placed on the positioning member, the difficulty of manufacturing and processing can be further reduced, and the difficulty of replacing parts can also be reduced. At the same time, a flat positioning groove can be manufactured. With current technology, flat surfaces are easier to manufacture than curved surfaces, and the precision and actual effect of flat surfaces are better than those of curved surfaces, further improving the fluency and stability of operation. 10) The first touch-based centering means of the present invention is more mature, requiring less actual touch force and excellent touch effect. This means opens a new path, and the centering boss bears most of the elastic force of the resetting member, while the control member is used to control the adjustment member or displacement member from leaving the centering slide-down wall. In this case, the control member is equivalent to a switch, and only bears the pressure generated by the very small elastic force of the resetting member. Simply pull out the control member and release the rebound path, and the displacement member can be returned to the centering destination via the centering slide-down wall and the resetting member. The second touch-based centering means receives the force of the reset member between the displacement member and the centering boss, which increases the engagement friction force. However, if the friction force is reduced too much by reducing the force of the reset member or by making the contact surface between the displacement member and the centering boss smoother, the centering state will become unstable. Therefore, there is a certain limit to the minimum touch force of the second touch-based centering means, while the minimum touch force of the first touch-based centering means can be made very low, which is why the touch sensitivity of the second touch-based centering means is not as good as that of the first touch-based centering means. 11) The use of movable grooves and sliding beads effectively solves the rotation or translation problem of the displacement member, significantly improving the integrity, durability, and stability of the internal structure, and also significantly improving the overall smoothness of operation and touch sensitivity. Although gravity may interfere with sliding, this can be solved by increasing the friction between parts, increasing the viscous liquid, adding magnets to attract the sliding beads, using one-way position restrictions to prevent the sliding beads from moving back and forth, and / or using a multi-layer design with misaligned height differences to prevent the sliding beads from moving back and forth. [Brief explanation of the drawings]

[0019] [Figure 1] FIG. 1 is a front view of a partial cross section of a first embodiment of the present invention. [Figure 2]FIG. 2 is a cross-sectional view of the portion BB in FIG. 1 of the present invention. [Figure 3] FIG. 3 is a partial enlarged view of a portion B in FIG. 2 according to the present invention. [Figure 4] FIG. 1 is a left side view of a partial cross section of a first embodiment of the present invention. [Figure 5] FIG. 5 is a cross-sectional view of the CC portion in FIG. 4 of the present invention. [Figure 6] FIG. 1 is an exploded perspective view of the first embodiment of the present invention. [Figure 7] FIG. 2 is a second perspective exploded view of the first embodiment of the present invention. [Figure 8] FIG. 10 is a front view of a second embodiment of the present invention. [Figure 9] FIG. 9 is a partial enlarged view of a portion D in FIG. 8 according to the present invention. [Figure 10] FIG. 10 is a cross-sectional view of the portion DD in FIG. 9 of the present invention. [Figure 11] FIG. 10 is a left side view of the second embodiment of the present invention. [Figure 12] FIG. 12 is a cross-sectional view of the part EE in FIG. 11 of the present invention. [Figure 13] FIG. 10 is a perspective view of a second embodiment of the present invention. [Figure 14] FIG. 10 is a perspective view of a third embodiment of the present invention. [Figure 15] FIG. 15 is a partially enlarged view of a portion F in FIG. 14 according to the present invention. [Figure 16] FIG. 15 is a cross-sectional view of the FF portion in FIG. 14 of the present invention. [Figure 17] FIG. 17 is a partial enlarged view of the R portion in FIG. 16 of the present invention. [Figure 18] FIG. 10 is an exploded perspective view of a third embodiment of the present invention. [Figure 19] FIG. 10 is a front view of a partial cross section of a fourth embodiment of the present invention. [Figure 20] FIG. 20 is a cross-sectional view of a portion II in FIG. 19 of the present invention. [Figure 21] FIG. 21 is a partial enlarged view of FIG. 20 of the present invention. [Figure 22] FIG. 21 is a cross-sectional view of the MM portion in FIG. 20 of the present invention. [Figure 23] FIG. 10 is an exploded perspective view of a fourth embodiment of the present invention. [Figure 24] FIG. 10 is a front view of a fifth embodiment of the present invention. [Figure 25] FIG. 25 is a cross-sectional view of the part AA in FIG. 24 of the present invention. [Figure 26] FIG. 10 is a front view of a fifth embodiment of the present invention. [Figure 27] FIG. 27 is a cross-sectional view of the UU portion in FIG. 26 of the present invention. [Figure 28] FIG. 10 is a front view of a sixth embodiment of the present invention. [Figure 29] FIG. 29 is a cross-sectional view of the KK portion in FIG. 28 of the present invention. [Figure 30] FIG. 29 is a cross-sectional view of the PP portion in FIG. 28 of the present invention. [Figure 31] FIG. 31 is a partial enlarged view of a portion A in FIG. 30 of the present invention. [Figure 32] FIG. 10 is an exploded perspective view of a sixth embodiment of the present invention. [Figure 33] FIG. 10 is a left side view of the seventh embodiment of the present invention. [Figure 34] FIG. 34 is a cross-sectional view of the NN portion in FIG. 33 of the present invention. [Figure 35] FIG. 10 is an exploded perspective view of a seventh embodiment of the present invention. [Figure 36] FIG. 2 is a second perspective exploded view of the seventh embodiment of the present invention. [Figure 37] FIG. 10 is a front view of a partial cross section of an eighth embodiment of the present invention. [Figure 38] FIG. 38 is a cross-sectional view of the S-S portion in FIG. 37 of the present invention. [Figure 39] FIG. 10 is a partially enlarged view of the SA portion of the present invention. [Figure 40] FIG. 10 is an exploded perspective view of an eighth embodiment of the present invention. [Figure 41] FIG. 2 is a second perspective exploded view of the eighth embodiment of the present invention. [Figure 42] FIG. 13 is a front view of Example 9 of the present invention. [Figure 43] 43 is a cross-sectional view of the present invention shown in FIG. 42 at JJ. [Figure 44] FIG. 44 is a partially enlarged view of T in FIG. 43 of the present invention. [Figure 45]FIG. 22 is a partially cutaway left side view of Example 10 of the present invention. [Figure 46] FIG. 16 is a perspective exploded view of a tenth embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0020] The present invention will now be further described with reference to the accompanying drawings.

[0021] Example 1 1 to 7, the mechanical pencil includes an outer rod 1, a reset member 3, a tool body 5, and an adjustment assembly. The adjustment assembly includes a control member 2, an adjustment member 4, and a positioning member .

[0022] The positioning member 7 is attached inside the outer rod 1, and a positioning groove 71 is provided in the positioning member 7, and a control lever 21 is provided in the control member 2.

[0023] The adjustment member 4 is provided with a displacement member 41, which is movable within the positioning groove 71. A collision occurs between the tail of the tool body 5 and the positioning member 7, and a part of the tool body is provided within the adjustment member 4, and the reset member 3 is provided completely within the adjustment member 4.

[0024] 3, the positioning groove 71 is provided with a centering return switching wall 711, a switching long wall 71B, and a centering boss 713. The centering boss 713 is provided with a centering slide-off wall 7131.

[0025] The bottom of the lead return switching wall 711 is the lead return destination A, and in this case, the tool body 5 is completely hidden inside the adjustment member 4 and is in a lead return state. As shown in the figure, the tool body 5 is preferably a general pen lead, and the reset member 3 is preferably a spring.

[0026] 3, when the displacement member 41 is positioned on the centering slide-down wall 7131, it moves in the inclined direction of the centering slide-down wall 7131 under the influence of the centering slide-down wall 7131 and the reset member 3, and before it completely separates from the centering slide-down wall 7131, its position is restricted by the control lever 21 and the final displacement member 41 comes to rest on the centering slide-down wall 7131. At this time, the position where the displacement member 41 comes to rest is the centering point B. At this time, the displacement member 41 is in the centering state.

[0027] As an additional means for realizing the lead return by pulling up via the control lever 21, the control lever 21 is provided with a position limiting boss 211 and a control switching wall 212, and the specific position limiting boss 211 provides a limit to the displacement member 41 instead of the control lever 21. A lead return passage 214 is provided between the position limiting boss 211 and the control switching wall 212. When the lead is returned, the displacement member 41 moves upward, and via the lead return passage 214 and the switching long wall 711, the displacement member 41 is released from the limit of the position limiting boss and returns to the lead return destination A.

[0028] To achieve leftward or rightward movement of the displacement member 41 within the positioning groove 71, the displacement member 41 is further provided with a rotation boss 412, and a rotation member 82 is further provided on the rotation boss 412. One end of the rotation member 82 is covered by the rotation boss 412 so that the rotation member 82 can rotate relative to the rotation boss 412, and the other end of the rotation member 82 is provided with a displacement portion 821, which directly contacts the positioning groove 71 instead of the displacement member 41. Furthermore, the displacement member 41 does not need to rotate left and right, and when leftward or rightward movement is required, the rotation boss 412 can be rotated relatively via the rotation member 82.

[0029] As a means for moving the displacement member 41 from centering destination A to centering destination B within the positioning groove 71, a centering guide wall 7132 is further provided on the centering boss 713 on the side closer to centering destination A. A centering passage B2 is further provided between the switching long wall 71B and the centering boss 713. When the displacement member 41 moves from centering destination A, it is guided by the centering guide wall 7132 into the centering passage B2 and then reaches above or below centering destination B via the switching long wall 71B. At this time, if the external force is released, the displacement member 41 falls back into centering destination B.

[0030] 3, when the positioning groove 71 is provided with a switching long wall 71B, a centering position limiting wall 716 and a centering back auxiliary wall 717 can also be added. The centering position limiting wall 716 is mainly used to restrict the displacement member 41 from moving too far upward, preventing the displacement member 41 from remaining at the centering destination B. On the other hand, after the switching long wall 71B is shielded by the centering position limiting wall 716, its length becomes shorter and it cannot support the displacement member 41 in centering back by pulling up. Therefore, the centering back auxiliary wall 717 can be used to replace the role of the original switching long wall 71B, and can support the displacement member 41 in centering back by pulling up.

[0031] To achieve centering by touch, a touch assembly 6 is further provided on the outer rod 1, which affects the movement of the control member 2 to change the touch method, touch direction, touch force, and touch range of the control member 2. The touch assembly 6 includes a position limiting member 61, a touch ring 62, and a touch cover 63. The position limiting member 61 is interconnected with the control member 2 through the touch cover 63, and the control member 2 moves following the position limiting member 61. The touch cover 63 is interconnected with the outer rod 1. The touch ring 62 is located between the position limiting member 61 and the touch cover 63. Touch-assisting inclined rings C are provided below the position limiting member 61, above the touch ring 62, below the touch ring 62 and / or above the touch cover 63.

[0032] In order to improve the stability of the entire touch assembly, so that stable and normal touch is possible even when the pen body is tilted, an auxiliary reset member 31 is provided between the control member 2 and the outer rod 1. As shown in Figure 2, it is most preferable that the auxiliary reset member 31 is a spring.

[0033] For easier touching, the outer diameter of the touch ring 62 is larger than that of the outer rod 1. A touch slope 621 is added to the lower end of the touch ring 62. The smaller the surface friction of the control lever and / or the touch ring, the better. The inclination angle of the touch slope is determined according to the set touch slope angle. For example, if a 10° inclination is required to complete centering by touching, the inclination angle of the slope should be 10° or more to enhance the touch effect.

[0034] In order to allow the control member 2 to perform a more stable control function, the control member 2 and the outer rod 1 can only move up and down, cannot rotate left and right, and the maximum downward movement is limited.

[0035] In the centering return path 214, on the side closer to the centering destination B, a path auxiliary slope 2141 is provided.

[0036] In order to improve the stability of the recoil, a retaining boss 719 is further provided in the positioning groove 71, and a recoil passage 71A is further provided between the position limiting boss 211 and the retaining boss 719, or between the inner wall of the outer rod 1 and the position limiting boss 211.

[0037] To allow the control lever to perform its function better, the positioning member 7 is provided with a control groove 715 to accommodate the up and down movement of the control lever 21. The control lever 21 passes through the control groove 715 to restrict the displacement portion 821 of the rotating member 82 from leaving the centering slide-down wall 7131. The control groove 715 and the control lever 21 preferably extend to the same horizontal line as the centering destination A. In this case, even if the control lever 21 moves upward under the influence of the touch assembly 6, the displacement portion 821 will enter onto the centering switch wall 711 after releasing the control lever 21 at the moment of touching, and no displacement notch of the control lever 21 will be generated between the control lever 21 and the centering switch wall 711. This makes the entire operating system more stable and prevents the displacement portion 821 from accidentally falling into the displacement notch of the control lever 21. A slide auxiliary slope 718 is further provided in the positioning groove 71 to facilitate the sliding of the displacement member 41. Considering the relationship with the control groove 715, there is a possibility that the displacement member 41 may become jammed. By increasing the slide auxiliary slope 718, the jamming situation that occurs when the displacement member 41 falls back can be resolved. The control groove 715 also functions as a sliding path for assembling the displacement portion 821, which facilitates the assembly of the entire assembly.

[0038] The lower end point of the control switching wall 212 is higher than the upper end point of the core returning auxiliary wall 717, which can provide better effect.

[0039] In order to further increase the error tolerance of the recoil of the displacement member 41, the position limiting boss 211 is further provided with a position limiting recoil slope 2111.

[0040] The adjustment member 4 is further provided with a movable opening 43. The movable opening 43 is further provided with a clamp outer extension 431, which is adapted to the positioning member 7. After the positioning member 7 is engaged with the clamp outer extension 431, it is restricted to sliding only up and down relative to the adjustment member 4, and is unlikely to disengage from the adjustment member 4 even when the outer rod 1 is not attached. The movable opening 43 is for accommodating the positioning member 7, and the positioning member 7 itself does not move, but the adjustment member 4 moves up and down relative to the positioning member 7. In the case described in some embodiments, the positioning member 7 needs to enter the adjustment member 4, so in certain cases, the positioning member 7 needs to be provided with a movable opening 43 to be used for the movement stroke of the adjustment member 4. In order to prevent the outer rod and the adjusting member from separating after assembly is completed, the positioning member 7 is further provided with a positioning position limiting base 7B. The positioning position limiting base 7B allows for better collision with the tool body 5 and also forms a position limit with the displacement member 41. Before assembly, the positioning position limiting base 7B was assembled into the adjusting member 4 through its side. After assembly is completed, the adjusting member 4 can only move up and down, so the positioning position limiting base 7B cannot separate from the adjusting member 4 by moving up and down. The positioning member 7 engages with the outer rod, thereby effectively preventing the adjusting member 4 and the outer rod 1 from separating.

[0041] 6, in order to better fix the rotation member 82, the displacement member 41 is further provided with a rotation fastener 4121 for hitting the pivotable member 82, and the rotation fastener 4121 is divided into a clamp portion 4131 and an engagement portion 4132. The rotation fastener 4121 engages in the side surface of the displacement member 41 in the form of a fastener through the engagement portion 4132, and a corresponding clamp engagement groove 41Y is also provided on the displacement member 41. After the engagement portion 4132 engages with the clamp engagement groove 41Y, a clamping force is continuously applied to the rotation member 82 through the clamp portion 4131, thereby providing a certain damping effect to the left and right rotation of the rotation member 82 and overcoming interference due to gravity.

[0042] The installation procedure for the pen is as follows: Step 1: First, assemble the positioning member 7, the rotating member 82 and the adjustment member 4 into an adjustment assembly. Place one end of the rotating member 82 over the rotating boss 412 on the adjustment member. Insert the positioning member 7 into the adjustment member, and then insert the displacement portion of the other end into the positioning groove. At this point, the adjustment assembly is completed. Step 2: Then, the adjustment assembly is assembled into the outer rod 1 from top to bottom. The adjustment assembly cannot move too far down due to the positioning restriction between the positioning member 7 and the outer rod 1. After the positioning member 7 remains in the mounting position, the control member 2, the auxiliary reset member, and the touch cover are assembled into the outer rod from top to bottom in order. Step 3: Next, place the touch ring 62 on the touch cover 63, and then the position limiting member 61 passes through the touch ring 62 and the touch cover 63 and is assembled to the control member 2. This completes the assembly of the entire pen. Step 4: Finally, the tool body 5, reset member 3, and pen replacement unit are assembled into the adjustment unit in this order from bottom to top, and the pen replacement unit and adjustment member 4 are attached in their designated positions.

[0043] When the third lifting centering means is adopted as the centering means, the adjustment member 4 is moved upward by an external force, and when the displacement member 41 moves from the centering point A, it is guided by the centering guide wall 7132 to enter the centering passage B2, and then reaches above the centering point B through the switching long wall 71B. At this time, when the external force is released, the displacement member 41 falls back to the centering point B.

[0044] The following two types of core return means are simultaneously provided: As a touch-based core return means, when the product of the present invention is placed directly on a storage container such as a desktop, bag, pencil case or pocket, the touch ring 62 comes into contact with the storage container, and the force generated by the contact is transmitted to the position limiting member 61, which then moves upward, and the control member 2 also moves upward. When the control member 2 moves upward, the displacement part 821 loses the restriction of the control member 2 and slides down along the centering sliding wall 7131 to the core return destination A, and at this time the tool body is completely hidden within the pen replacement part D. As one of the core return means by pulling up, the adjustment member 4 is moved upward by an external force, and the displacement member 41 bypasses the restriction of the position limit boss 211 via the core return auxiliary wall 717 on the positioning groove 71 and the control switching wall 212 on the control member 2, and then falls back to the core return destination A under the influence of the reset member 3.

[0045] Example 2 8 to 13, the mechanical pencil includes an outer rod 1, a reset member 3, a tool body 5, and an adjustment assembly. The adjustment assembly includes a control member 2 and an adjustment member 4.

[0046] The control member 2 is provided with a control lever 21 . In this embodiment, Positioning groove 71 Positioning member 7 The specific configurations of the positioning groove 71 and the displacement member 41 differ from those in Example 1. The adjustment member 4 is provided with a displacement member 41, and the displacement member 41 is movable within the positioning groove 71.

[0047] Specifically, as shown in Fig. 6, when the centering and centering return means by pressing are adopted, the adjusting member 4 is provided with an adjusting collision part 42 to prevent the center from moving too far back and ensure the stability of the overall configuration. A collision occurs between the tail of the tool body 5 and the adjusting collision part 42, and the tool body 5 and the reset member are completely disposed within the outer rod.

[0048] To improve the overall stability of the touch-back centering, an auxiliary reset member 31 is provided between the control member 2 and the adjustment member 4, so that it is limited to a close distance from the centering boss 713 whenever the control member is used and when not touched.

[0049] The positioning groove 71 is provided with a centering return switching wall 711, a switching long wall 71B, and a centering boss 713. The centering boss 713 is provided with a centering slide-off wall 7131.

[0050] The bottom of the centering return switching wall 711 is the centering return destination A, and in this case, the tool body 5 is completely hidden inside the adjustment member 4 and is in a centering return state.

[0051] When the displacement member 41 is positioned on the centering slide-down wall 7131, it moves in the inclined direction of the centering slide-down wall 7131 due to the influence of the centering slide-down wall 7131 and the reset member 3, and before it completely separates from the centering slide-down wall 7131, it is limited in position by the control lever 21, and when the final displacement member 41 stops on the centering slide-down wall 7131, the location where the displacement member 41 stops at this time becomes the centering point B. At this time, the centering state is established.

[0052] As a means for realizing the core return by pulling up via the control lever 21, the control lever 21 is provided with a fall assist slope 213. When the core is returned, the displacement member 41 moves upward, and after leaving the upper side of the centering boss 713 via the switching long wall 71B, it jumps over the limit of the control lever 21 via the reset member 3 and the fall assist slope 213.

[0053] As a means for allowing the displacement member 41 to move left or right within the positioning groove 71, the displacement member 41 is provided with a displacement locking protrusion 411. The displacement locking protrusion 411 directly contacts the positioning groove 71 instead of the displacement member 41. Furthermore, the displacement member 41 itself has a certain left and right deformation bending ability and can bend within a certain width. Therefore, when the displacement member 41 moves into the positioning groove 71, the displacement member 41 can be rotated to achieve left and / or right movement, provided that the adjustment member 4 itself does not move.

[0054] As a means for solving the problem of the displacement member 41 moving from centering destination A to centering destination B within the positioning groove 71, a centering auxiliary slope B1 is provided at one end of the centering boss 713 that is close to centering destination A and / or at one end of the displacement member 41 that is close to centering destination B, and the displacement member 41 itself has the ability to deform and bend back and forth, so that when the displacement member 41 passes through the centering boss 713, the centering auxiliary slope B1 and the deformation and bending ability of the displacement member 41 allow it to climb over the centering boss 713 and reach centering destination B. The positions of A and B are shown in Figure 9.

[0055] To achieve centering by touch, a touch assembly 6 is further provided on the outer rod 1, which affects the movement of the control member 2 to change the touch method, touch direction, touch force, and touch range of the control member 2. The outer rod 1 is provided with a connecting body 11. The touch assembly 6 includes a position limiting member 61, a touch ring 62, and a touch cover 63. The position limiting member 61 passes through the touch cover 63 and is connected to the connecting body 11, and the touch cover 63 passes through the connecting body 11 and is connected to or hits the control member 2. When the touch cover 63 moves downward, the control member 2 is also pressed and moved downward. The touch ring 62 is located between the position limiting member 61 and the touch cover 63. Touch-assisting inclined rings C are provided below the position limiting member 61, above the touch ring 62, and below the touch ring 62 and / or above the touch cover 63.

[0056] In order to improve the stability of the entire touch assembly, an auxiliary reset member 31 is provided between the control member 2 and the outer rod 1, so that stable and normal touch is possible even when the pen body is tilted.

[0057] For easier touching, the outer diameter of the touch ring 62 is larger than the outer diameter of the outer rod 1. The smaller the surface friction force of the control lever and / or touch ring, the better.

[0058] In order to allow the control member 2 to perform a more stable control function, the control member 2 and the outer rod 1 can only move up and down, cannot rotate left and right, and the maximum limit of the upward movement is limited.

[0059] When switching from the centering back state to the centering state, an external force is applied to keep the outer rod stationary, move the adjustment member 4, and move the displacement member 41 from the centering back point A to below the centering boss 713. Then, the external force is released, and the displacement member 41 falls back under the influence of the reset member 3, contacts the centering slide-down wall 7131 and the control lever 21, and then remains at the centering point B.

[0060] For better pressing, a pressing member 43 is provided which engages with the adjustment member.

[0061] In order to make it easier to lock the auxiliary reset member, the control member 2 is further provided with a reset ring base 24, and the reset ring base 24 may be provided in the first embodiment as well.

[0062] The installation procedure is as follows: Step 1: First, the touch cover 63, the touch ring 62, and the position limiting member 61 are assembled onto the outer rod 1 in this order from top to bottom. The position limiting member 61 passes through the touch ring 62 and the touch cover 63 and engages with the connecting body. Step 2: Assemble the positioning member 7, auxiliary reset member 31, adjustment member 4, pen tip, reset member 3 and pen replacement part into the outer rod 1 in order from bottom to top, and engage the pen replacement part with the outer rod 1; Step 3: Finally, the pressing member 43 and the adjusting member 4 are engaged.

[0063] When the second pressing centering means is adopted, the outer rod 1 is left stationary, and the adjustment member 4 is moved downward by an external force, and the displacement member 41 passes through the centering boss 713 and, thanks to the centering auxiliary slope B1 and the deformation bending ability of the displacement member 41, overcomes the centering boss 713 and reaches the centering destination B.

[0064] The following two types of core return means are simultaneously provided: As a touch-based core-returning means, when the product of the present invention is placed directly on a storage container such as a desktop, bag, pencil case or pocket, the touch ring 62 is brought into contact with the storage container, and the force generated by the contact is transmitted to the touch cover 63, which then moves downward, and the control member 2 also moves downward. When the control member 2 moves downward, the displacement locking protrusion 411 loses the restriction of the control member 2 and slides down along the centering sliding wall 7131 to the core-returning destination A, and at this time the tool body is completely hidden inside the pen replacement part D. As a core return means 2 by pressing, the adjustment member 4 is moved downward by an external force, and after passing through the switching long wall 71B and reaching the underside of the position limiting boss 211, the external force is released and the displacement member 41 overcomes the restriction of the position limiting member 2 via the fall assist slope 213 on the control lever 21 and the reset member 3, and then falls back to the core return destination A.

[0065] Other parts that are not explained in detail are the same as in the first embodiment, and the details are omitted.

[0066] Example 3 14 to 18, the mechanical pencil includes an outer rod 1, a reset member 3, a tool body 5, and an adjustment assembly. The adjustment assembly includes a control member 2 and an adjustment member 4.

[0067] The outer rod 1 is provided with a positioning groove 71 and a positioning portion 72. The adjustment member 4 is provided with a displacement member 41, and the displacement member 41 is provided within the positioning groove 71 so as to be movable.

[0068] The control member 2 is provided with a control lever 21. A collision occurs between the tail of the tool body 5 and the positioning member 7, and a part of the tool body 5 is provided within the adjustment member 4, and the reset member 3 is provided completely within the adjustment member 4. The positioning groove 71 is provided with a centering return switching wall 711, a switching long wall 71B, and a centering boss 713. The centering boss 713 is provided with a centering slide-off wall 7131. Positions A and B are shown in Figure 15.

[0069] The bottom of the centering return switching wall 711 is the centering return destination A, and in this case, when the tool body 5 is completely hidden inside the adjustment member 4, it is in the centering return state.

[0070] When the displacement member 41 is positioned on the centering slide-down wall 7131, it moves in the inclined direction of the centering slide-down wall 7131 due to the influence of the centering slide-down wall 7131 and the reset member 3, and before it completely separates from the centering slide-down wall 7131, it is limited in position by the control lever 21, and when the final displacement member 41 stops on the centering slide-down wall 7131, the location where the displacement member 41 stops at this time becomes the centering point B. At this time, the centering state is established.

[0071] As an additional means for realizing the core return by pulling up through the control lever 21, the control lever 21 is provided with a fall-back auxiliary slope 213. When the core is returned, the displacement member 41 moves upward and leaves the upper side of the centering boss 713 through the switching long wall 71B, and then jumps over the limit of the control lever 21 through the reset member 3 and the fall-back auxiliary slope 213.

[0072] As a means for allowing the displacement member 41 to move left or right within the positioning groove 71, the displacement member 41 is provided with a displacement locking protrusion 411. The displacement locking protrusion 411 directly contacts the positioning groove 71 instead of the displacement member 41. Furthermore, the displacement member 41 itself has a certain left and right deformation bending ability and can bend within a certain width, so that when the displacement member 41 moves within the positioning groove 71, the displacement member 41 can move left and / or right, provided that the adjustment member 4 itself does not move.

[0073] As a solution for moving the displacement member 41 from the centering return destination A to the centering destination B within the positioning groove 71, a centering auxiliary slope B1 is provided at one end of the centering boss 713 close to the centering return destination A and / or at one end of the displacement member 41 close to the centering destination B, and the displacement member 41 itself has the ability to deform and bend back and forth, so that when the displacement member 41 passes through the centering boss 713, it can climb over the centering boss 713 and reach the centering destination B due to the centering auxiliary slope B1 and the deformation and bending ability of the displacement member 41.

[0074] To achieve centering by touch, a touch assembly 6 is further provided on the outer rod 1, which affects the movement of the control member 2 to change the touch mode, touch direction, touch force, and touch range of the control member 2. The touch assembly 6 includes a position limiting member 61, a touch ring 62, and a touch cover 63. The position limiting member 61 is interconnected with the connector 11 through the touch cover 63, and the control member 2 moves following the position limiting member 61. The touch cover 63 is interconnected with the outer rod 1. The touch ring 62 is located between the position limiting member 61 and the touch cover 63. Touch-assisting inclined rings C are provided below the position limiting member 61, above the touch ring 62, below the touch ring 62 and / or above the touch cover 63.

[0075] For easier touching, the outer diameter of the touch ring 62 is larger than the outer diameter of the outer rod 1. The smaller the surface friction force of the control lever and / or touch ring, the better.

[0076] In order to allow the control member 2 to perform a more stable control function, the control member 2 and the outer rod 1 can only move up and down, cannot rotate left and right, and the maximum downward movement is limited.

[0077] When switching from the centering back state to the centering state, an external force is applied to keep the outer rod stationary, move the adjustment member 4, and move the displacement member 41 from the centering back point A to above the centering boss 713. Then, the external force is released, and the displacement member 41 falls back under the influence of the reset member 3, contacts the centering slide-down wall 7131 and the control lever 21, and then remains at the centering point B.

[0078] In order to better prevent the adjustment member 4 from coming off the outer rod, the displacement locking protrusion 411 is made independent, and after the adjustment member is attached to the outer rod, the adjustment member 4 can be assembled independently, making it less likely that the adjustment member 4 will come off the outer rod.

[0079] In order to adapt to tool bodies of different specifications, the structure that hits the tool body 5 is further provided with an adjustment hole E1, and an adjustable base E is further provided in the adjustment hole E1, and the adjustable base E and the adjustment hole E1 are engaged with each other by a screw or a snap. The structure that hits the tool body 5 is a part that contacts the tool body 5 on the outer rod 1, the adjustment member 4 or the positioning member 7, and the adjustable base E changes the length that the tool body 5 can be accommodated in the outer rod 1 or the adjustment member 4 through the positional relationship between the external adjustment member and the adjustment hole E1. The material is provided with product-related scale lines or general scale lines, and the product-related scale lines mean that the external adjustment member is made for the tool body 5, and the handle is provided with several scale lines of common specification lengths suitable for the tool body 5, and these different specification scale lines can be rotated according to need until they match the lowest end of the outer rod 1 or the adjustment member 4, and the internal length is adjusted to the internal length corresponding to the specification scale line, so that the user can easily and directly adjust it according to need, and there is no need to take the time to record the length parameters between different specifications.

[0080] A pen replacement part D is further provided below the adjustment part 4, and two magnetic attraction objects H are further provided between the adjustment part 4 and the pen replacement part D, and the magnetic attraction force between the two magnetic attraction objects H can be used to engage between the adjustment part 4 and the pen replacement part D and ensure that the adjustment part 4 can rotate relative to the pen replacement part D.

[0081] The installation procedure is as follows: Step 1: First, the control member 2, the touch cover 63, the touch ring 62, and the position limiting member 61 are assembled onto the outer rod 1 in order from top to bottom, and the touch cover 63 is engaged with the outer rod 1. The position limiting member 61 passes through the touch ring 62 and the touch cover 63 and engages with the control member 2. Step 2: Assemble the adjustable base E into the outer rod 1 through the outer tool body 5, and adjust it to a predetermined position based on the actual required dimensions of the tool body 5; Step 3: Subsequently, the adjustment member 4, the tool body 5, the reset member 3 and the pen replacement part are assembled onto the outer rod 1 in this order from bottom to top, and the pen replacement part and the adjustment member 4 are engaged with each other. Step 4: At this time, it can be checked whether the displacement boss 411 is located in the positioning groove 71; if not, adjust the position of the adjustment member so that the displacement boss 411 is located in the positioning groove 71.

[0082] In this embodiment, no auxiliary resetting element is used, so the control element 2 must be reset by gravity. The success rate of centering can be ensured by standing the entire pen upright before use. Of course, adding an auxiliary resetting element directly between the control element 2 and the touch cover 63 can also improve the experience.

[0083] Specifically, as shown in Figure 6, when the second lifting centering means is used as the centering means, the outer rod 1 is left stationary and the adjustment member 4 is moved upward by an external force, and the displacement member 41 passes through the centering boss 713 and, thanks to the centering auxiliary slope B1 and the deformation bending ability of the displacement member 41, overcomes the centering boss 713 and reaches the centering destination B.

[0084] The following two types of core return means are simultaneously provided: As a touch-based core return means, when the product of the present invention is placed directly on a storage container such as a desktop, bag, pencil case or pocket, the touch ring 62 is brought into contact with the storage container, and the force generated by the contact is transmitted to the position limiting member 61, which then moves upward, and the control member 2 also moves upward. When the control member 2 moves upward, the displacement boss 411 loses the restriction of the control member 2 and slides down along the centering slide-down wall 7131 to the core return destination A, and at this time the tool body is completely hidden within the pen replacement part D. As a core return means 2 by pressing, the adjustment member 4 is moved upward by an external force, and after passing through the switching long wall 71B and reaching the upper side of the position limiting boss 211, the external force is released and the displacement member 41 overcomes the restriction of the position limiting member 2 via the fall assist slope 213 on the control lever 21 and the reset member 3, and then returns to the core return destination A.

[0085] As described above, the structures of the touch assemblies 6 in Examples 1 to 3 are basically the same, and the principles of Examples 2 and 3 are completely the same, with similar structures and only opposite implementation directions.

[0086] Example 4 19 to 23 show mechanical pencils with part names similar to those of Examples 1 to 3, in which the position of a tool body 5, which has two positional states, lead-back and centering, is determined by the displacement of an adjustment member 4 provided within an outer rod 1, and the adjustment member 4 relatively stabilizes the two positional states, lead-back and centering, via a positioning member 7 or a positioning groove 71 on the outer rod 1, a reset member 3, and a control member 2, and the reset member 3 is driven via the tool body 5 to apply a sustained force to the adjustment member 4 so as to relatively stabilize the state when a displacement member 41 on the adjustment member 4 is positioned at a lead-back destination. When the displacement member 41 moves to a centering destination B within the positioning groove 71, the control member 2 restricts the displacement member 41, thereby relatively stabilizing the centering positional state.

[0087] Switching from the centering state to the centering back state can be achieved by three means. One is centering back by movement control. An external force is used to move the control member 2 up or down, releasing the displacement member 41 from the restriction of the control member 2. The displacement member 41 is then moved downward under the influence of the reset member 3 to achieve centering back. The second is pull-up centering back. The outer rod 1 remains stationary, and an external force is used to move the adjustment member 4 up. The displacement member 41 bypasses the restriction of the control member 2 via the switching long wall 71B on the positioning groove 71, the control switching wall on the control member, and the reset member 3, and then reaches the centering destination. The third is a second pull-up centering back means. The outer rod 1 remains stationary, and an external force is used to move the adjustment member 4 up. The displacement member 41 overcomes the restriction of the position limiting member 2 via the switching long wall 71B on the positioning groove 71 and the reset member 3, and then returns to the centering destination.

[0088] 20 to 23, similar to the first embodiment, in which a rotating boss 412 is further provided on the displacement member 41 as a means for moving the displacement member 41 left or right within the positioning groove 71, a rotating member 82 is further provided on the rotating boss 412, one end of the rotating member 82 is fitted over the rotating boss 412 so that the rotating member 82 can rotate relative to the rotating boss 412, and a displacement portion 821 is provided on the other end of the rotating member 82, and the specific displacement portion 821 directly contacts the positioning groove 71 instead of the displacement member 41. In addition, the displacement member 41 does not need to rotate left or right, and when left or right movement is required, the rotating boss 412 can be rotated relatively via the rotating member 82.

[0089] As a means for moving the displacement member 41 from centering destination A to centering destination B within the positioning groove 71, a centering guide wall 7132 is further provided on the centering boss 713 on the side closer to centering destination A. A centering passage B2 is further provided between the switching long wall 71B and the centering boss 713. When the displacement member 41 moves from centering destination A, it is guided by the centering guide wall 7132 into the centering passage B2 and then reaches above centering destination B via the switching long wall 71B. At this time, if the external force is released, the displacement member 41 falls back into centering destination B.

[0090] To avoid human error, the positioning groove 71 is further provided with a centering position limiting wall 716 and a centering back assisting wall 717. The centering position limiting wall 716 is mainly used to restrict the displacement member 41 from moving too far upward, preventing the displacement member 41 from remaining at the centering point B. On the other hand, the centering back assisting wall 717 is shortened after the switching long wall 71B is shielded by the centering position limiting wall 716, and therefore cannot continue to assist the displacement member 41 in centering back by being pulled up. Therefore, the centering back assisting wall 717 takes over the function of the original switching long wall 71B and continues to assist the displacement member 41 in centering back by being pulled up.

[0091] In order to allow the control member 2 to perform a more stable control function, the control member 2 and the outer rod 1 can only move up and down, cannot rotate left and right, and the maximum downward movement is limited.

[0092] To avoid unnecessary interference due to manufacturing errors and further to avoid unnecessary clogging, a path auxiliary slope 2141 is provided in the centering return path 214 on the side closer to the centering destination B.

[0093] In order to improve the stability of the recoil, a retaining boss 719 is further provided in the positioning groove 71, and a recoil passage 71A is further provided between the position limiting boss 211 and the retaining boss 719, or between the inner wall of the outer rod 1 and the position limiting boss 211.

[0094] To allow the control lever to exert a better effect, the positioning member 7 is provided with a control groove 715 to accommodate the up and down movement of the control lever 21. The control lever 21 passes through the control groove 715 to restrict the displacement portion 821 of the rotating member 82 from leaving the centering slide-down wall 7131. The control groove 715 and the control lever 21 preferably extend to the same horizontal line as the centering destination A. In this case, even if the control lever 21 moves upward under the influence of the touch assembly 6, the displacement portion 821 will enter onto the centering switch wall 711 after releasing the control lever 21 at the moment of touching, and no displacement notch of the control lever 21 will be generated between the control lever 21 and the centering switch wall 711. This makes the entire operating system more stable and prevents the displacement portion 821 from accidentally falling into the displacement notch of the control lever 21. The positioning groove 71 is also provided with a slide assist slope 718 to facilitate the sliding of the displacement member 41. Considering the relationship with the control groove 715, there is a possibility that the displacement member 41 may become jammed. By increasing the slide assist slope 718, the jamming situation that occurs when the displacement member 41 falls back can be resolved. The control groove 715 also functions as a sliding path for assembling the displacement portion 821, which facilitates the assembly of the entire assembly.

[0095] When switching from the centering back state to the centering state, an external force is applied to keep the outer rod 1 stationary, move the adjustment member 4, and move the displacement member 41 from the centering back point A to above the centering boss 713. Then, the external force is released, and the displacement member 41 falls back under the influence of the reset member 3, contacts the centering slide-down wall 7131 and the control lever 21, and then remains at the centering point B.

[0096] In order to further increase the error tolerance, the lower end point of the control switching wall 212 is higher than the upper end point of the core return auxiliary wall 717, which can achieve better results.

[0097] To facilitate installation and repair, the outer rod is further provided with a cover 14, and the cover 14 and the outer rod are engaged with each other.

[0098] In order to easily assemble the adjustment assembly onto the outer rod from bottom to top, the positioning member 7 needs to be interlocked with the cover 14. In this embodiment, an interlocking method is adopted, and therefore the positioning member 7 is provided with an interlocking portion 74. Meanwhile, the cover 14 is provided with a cover locking device 141, which is divided into segments and bent inward to a certain extent, so that the interlocking portion 74 can be easily assembled into the cover 14. After being assembled into the cover 14, the interlocking portion 74 is difficult to come off. In order to easily lock the auxiliary reset member, the control member 2 is further provided with a reset ring base 24.

[0099] In order to minimize the adverse effect of gravity on the rotating member, the adjusting member 4 is provided with a rotation stabilizing boss 45, and the rotation stabilizing boss 45 is provided with a fixed collision boss 451.

[0100] To facilitate manufacturing processes such as rapid mold release, the rotational stability boss 45 can be disassembled into individual parts and re-fixed to the adjustment member 4, outer rod 1 or positioning member 7 by a suitable mounting method, which can be a snap, adhesive, magnetic attraction, screw or third-party tool.

[0101] An installation buffer groove 7D is provided within the positioning groove 71 to avoid unnecessary impact on the rotating member 82 during installation. In order to better protect the rotating member 82 and the positioning groove, a positioning position limiting base 7B is further provided on the positioning member 7, and a core return error groove 7F is provided within the positioning groove 71. Due to the position limit between the positioning position limiting base 7B and the displacement member 41, if there is no need to realize the limit between the rotating member 82 and the positioning groove, unnecessary collision between the rotating member 82 and the positioning groove is avoided when in the core return state. The core return error groove 7F prevents impact on the rotating member 82 and the positioning groove when in the core return state, and can provide a larger error dimension.

[0102] Please refer to Example 2 for installation procedures.

[0103] When the third lifting centering means is adopted as the centering means, the adjustment member 4 is moved upward by an external force, and when the displacement member 41 moves from the centering point A, it is guided by the centering guide wall 7132 to enter the centering passage B2, and then reaches above the centering point B through the switching long wall 71B. At this time, when the external force is released, the displacement member 41 falls back to the centering point B.

[0104] The following two types of core return means are simultaneously provided: First, as a core return means by movement control, when the control member 2 is moved upward by an external force and the displacement member 41 is released from the restriction of the control member 2, the displacement member 41 moves under the influence of the reset member 3, thereby realizing core return. Second, as a core return means by pulling up, the adjustment member 4 is moved upward by an external force, and the displacement member 41 bypasses the restriction of the position limiting boss 211 via the core return auxiliary wall 717 on the positioning groove 71, and then falls back to the core return destination A under the influence of the reset member 3.

[0105] Example 5 24-25 and 26-27 show two similar mechanical pencils, each including an outer rod 1, a reset member 3, a tool body 5, and an adjustment assembly. The adjustment assembly includes a control member 2, an adjustment member 4, and a touch assembly 6. The control member 2 is provided with a control lever 21.

[0106] Positioning member 7 A positioning groove 71 is provided in the centering boss 71. The positioning groove 71 is provided with a centering switch wall 711, a centering position limiting wall 712, and a centering boss 713. The centering boss 713 is provided with a centering slide-down wall 7131. Here, in one embodiment shown in FIGS. 24 and 25, the centering boss 713 and / or the displacement member 41 is further provided with a reverse push auxiliary slope 417.

[0107] Collision occurs between the tail portion of the tool body 5 and the positioning portion 72 , and a part of the tool body 5 is provided within the adjustment member 4 , and the reset member 3 is provided completely within the adjustment member 4 .

[0108] The adjustment member 4 has the displacement member 41 provided in the positioning groove 71 so as to be movable within the positioning groove 71 .

[0109] The tool body 5 and the reset member 3 are provided in the adjustment member 4, and the reset member 3 is specifically located between the tool body 5 and the adjustment member 4. The rear end of the tool body 5 abuts against the lower end of the positioning portion 72.

[0110] The control member 2 and the adjustment member 4 are slidably disposed within the outer rod 1 .

[0111] A centering point A is formed at the corner between the centering switching wall 711 and the centering position limiting wall 712. A centering point B is formed above the centering slide-down wall 7131.

[0112] The touch assembly 6 is used to collect and transmit external touch forces to the control member 2 for controlling the movement of the control lever 21 .

[0113] When the displacement member 41 is positioned at the centering destination A, the tool body 5 is completely hidden inside the adjustment member 4, and is in a centering state at this time.

[0114] When the displacement member 41 is positioned on the centering slide-down wall 7131, it moves in the inclined direction of the centering slide-down wall 7131 under the influence of the centering slide-down wall 7131 and the reset member 3. Before the displacement member 41 completely disengages from the centering slide-down wall 7131, the control lever 21 restricts the position of the displacement member 41 and / or the adjustment member 4, preventing the displacement member 41 from completely disengaging from the centering slide-down wall 7131. At this time, the centering slide-down wall 7131 determines the height position of the displacement member 41. When the displacement member 41 finally comes to rest on the centering slide-down wall 7131, the position where the displacement member 41 remains is the centering point B. At this time, the writing portion of the tool body 5 is exposed from the adjustment member 4, and the tool is in a centered state.

[0115] The control lever 21 can only move up and down or back and forth relative to the positioning groove 71, and cannot move left and right.

[0116] 24 and 25, the displacement member 41 is further provided with a displacement locking protrusion 411 or a slide bead groove, and no distortion occurs in the displacement member 41 itself. The shape of the core return destination A of the positioning groove 71 can be appropriately adjusted depending on the shape of the displacement locking protrusion 411, the slide bead 8, and / or the displacement member 41 sliding in the positioning groove 71.

[0117] A centering assist slope B1 is provided at one end of the centering boss 713 near centering destination A and / or at one end of the displacement member 41 near centering destination B, and the displacement member 41 itself has the ability to deform and bend back and forth, so that when the displacement member 41 passes through the centering boss 713, the centering assist slope B1 and the deformation and bending ability of the displacement member 41 allow it to climb over the centering boss 713 and reach centering destination B. When this measure is adopted, after the displacement member 41 reaches centering destination B, the deformation and bending ability can be used to add an upside-down hook to the centering boss 713, add a rough texture, increase the friction force, and / or increase the mating contact surface, thereby ensuring that it cannot return to centering destination A again.

[0118] The touch assembly 6 includes a position limiting member 61, a touch ring 62, and a touch cover 63. The position limiting member 61 is interconnected with the control member 2 through the touch cover 63, and the control member 2 follows the movement of the position limiting member 6. The touch cover 63 and the outer rod 1 are connected with each other, and the touch cover 63 does not move relative to the outer rod 1. The touch ring 62 is located between the position limiting member 61 and the touch cover 63. Touch-assist inclined rings C are provided below the position limiting member 61, above the touch ring 62, below the touch ring 62, and / or above the touch cover 63. When the touch assembly 62 is pressed by an external force, the touch-assist inclined rings C can move the control member 2 upward relative to the positioning groove 71, causing the control lever 21 to move upward and slide the displacement member 21 from the centering point B to the centering back point A.

[0119] In one embodiment shown in Figures 24 to 25, the outer rod 1 remains stationary, and an external force is used to pull the adjustment member 4 and move it upward, and the reverse push auxiliary slope 417 releases the displacement member 41 from the restriction of the centering boss 713, thereby additionally realizing centering back by reverse pushing back to the centering destination A.

[0120] When the second centering means by pulling up is adopted, the outer rod 1 is left stationary, and the adjustment member 4 is moved upward by an external force, and the displacement member 41 passes through the centering boss 713 and, thanks to the centering auxiliary slope B1 and the deformation bending ability of the displacement member 41, overcomes the centering boss 713 and reaches the centering destination B.

[0121] The following two types of core return means are simultaneously provided: As a touch-based core return means, when the product of the present invention is placed directly on a storage container such as a desktop, bag, pencil case or pocket, the touch ring 62 is brought into contact with the storage container, and the force generated by the contact is transmitted to the position limiting member 61, which then moves upward, and the control member 2 also moves upward. When the control member 2 moves upward, the displacement boss 411 loses the restriction of the control member 2 and slides down along the centering slide-down wall 7131 to the core return destination A, and at this time the tool body is completely hidden within the pen replacement part D. As a centering return means 2 by reverse pushing, the outer rod 1 is left stationary, and the adjustment member 4 is moved downward by an external force, and after the displacement member 41 is released from the restriction of the centering boss 713 via the reverse pushing auxiliary slope 417, it returns to the centering return destination A.

[0122] In the embodiment shown in Figures 26 to 27, the displacement member 41 is further provided with a displacement locking protrusion 411, and the displacement member 41 itself does not deform or bend, and when leftward and rightward movement is required, the entire adjustment member 4 follows the leftward and rightward movement.

[0123] The shape of the center return end A of the positioning groove 71 can be appropriately adjusted depending on the shape of the displacement locking protrusion 411, the slide bead 8 and / or the displacement member 41 sliding within the positioning groove 71.

[0124] An auxiliary reset member 31 is provided between the control member 2 and the touch assembly 6 .

[0125] In the embodiment shown in Figures 26 and 27, the outer rod 1 is provided with a connecting body 11. The position limiting member 61 passes through a touch cover 63 and is connected to the connecting body 11, and the touch cover 63 passes through the connecting body 11 and is connected to or hits the control member 2. When the touch cover 63 moves downward, the control member 2 is also pressed and moved downward. The touch ring 62 is located between the position limiting member 61 and the touch cover 63. Touch-assist inclined rings C are provided below the position limiting member 61, above the touch ring 62, below the touch ring 62 and / or above the touch cover 63. When the touch assembly 62 is pressed by an external force, the touch-assist inclined rings C can move the control member 2 downward relative to the positioning groove 71, causing the control lever 21 to move downward and slide the displacement member 21 from the centering point B to the centering back point A.

[0126] One of the touch means is to indirectly control the control member 2 to move upward via the touch assembly 6. Another of the touch means is to indirectly control the control member 2 to move downward via the touch assembly 6. The touch method to be adopted is determined mainly based on the movement direction required to touch the required control member.

[0127] When the second centering return means by pulling up is adopted, the outer rod 1 is left stationary, and the adjustment member 4 is moved upward by an external force, and the displacement member 41 passes through the centering boss 713 and, thanks to the centering auxiliary slope B1 and the deformation bending ability of the displacement member 41, overcomes the centering boss 713 and reaches the centering destination B.

[0128] As a touch-based core return means, when the product of the present invention is placed directly on a storage container such as a desktop, bag, pencil case or pocket, the touch ring 62 comes into contact with the storage container, and the force generated by the contact is transmitted to the position limiting member 61, which then moves upward, and the control member 2 moves upward. When the control member 2 moves upward, the displacement locking protrusion 411 loses the restriction of the control member 2 and slides down along the centering sliding wall 7131 to the core return destination A, and at this time the tool body is completely hidden within the pen replacement part D.

[0129] Example 6 28 to 32 show a mechanical pencil, which includes an outer rod 1, a reset member 3, a tool body 5, and an adjustment assembly. The adjustment assembly includes a control member 2, an adjustment member 4, a touch assembly 6, and a positioning member .

[0130] The control member 2 is provided with a control lever 21. A collision occurs between the tail of the tool body 5 and the positioning member 7, and the tool body 5 is partially disposed within the adjustment member 4, and the reset member 3 is completely disposed within the adjustment member 4.

[0131] The positioning member 7 is attached inside the outer rod 1 and is unable to move up and down significantly, and it is preferable that it not move up and down. The positioning member 7 is provided with a positioning groove 71. The positioning groove 71 is provided with a centering return switching wall 711, a centering return position limiting wall 712, and a centering boss 713. The centering boss 713 is provided with a centering slide-off wall 7131.

[0132] The adjustment member 4 is provided with a displacement member 41, which is movable within the positioning groove 71.

[0133] The tool body 5 and the reset member 3 are provided in the adjustment member 4, and the reset member 3 is specifically located between the tool body 5 and the adjustment member 4. The rear end of the tool body 5 abuts against the lower end of the positioning portion 72.

[0134] The control member 2 and the adjustment member 4 are slidably disposed within the outer rod 1 .

[0135] A core return point A is formed at the angle between the core return switching wall 711 and the core return position limiting wall 712 .

[0136] When the displacement member 41 is positioned at the centering destination A, the tool body 5 is completely hidden inside the adjustment member 4, and is in a centering state at this time.

[0137] When the displacement member 41 is positioned on the centering slide-down wall 7131, it moves in the inclined direction of the centering slide-down wall 7131 under the influence of the centering slide-down wall 7131 and the reset member 3. Before the displacement member 41 completely disengages from the centering slide-down wall 7131, the control lever 21 restricts the position of the displacement member 41 and / or the adjustment member 4, preventing the displacement member 41 from completely disengaging from the centering slide-down wall 7131. At this time, the centering slide-down wall 7131 determines the height position of the displacement member 41. When the displacement member 41 finally comes to rest on the centering slide-down wall 7131, the position where the displacement member 41 remains is the centering point B. At this time, the writing portion of the tool body 5 is exposed from the adjustment member 4, and the tool is in a centered state.

[0138] The touch assembly 6 is used to collect external touch force and transmit it to the control member 2 to control the movement of the control lever 21, and when the control lever 21 is released from contact with the displacement member 41, the displacement member 41 moves from the centering point B to the centering back point A.

[0139] The control lever 21 can only move up and down or back and forth relative to the positioning member 7, and cannot move left and right.

[0140] The displacement member 41 is provided with a movable groove 81, and a sliding bead 8 is provided between the movable groove 81 and the positioning groove 71. The sliding bead 8 directly contacts the positioning groove 71 instead of the displacement member 41. This technical solution does not require the adjustment member to rotate or move, is more stable, is simple to manufacture and install, and is smooth to use. The movable groove 81 includes a movable linear groove, a movable arc groove, and a movable ring groove. The movable linear groove has a linear moving path that matches the planar positioning groove. The movable arc groove has a circular moving path that matches the arc positioning groove. The movable ring groove has a ring-shaped moving path that matches the ring positioning groove.

[0141] When the control lever 21 needs to restrict the displacement locking protrusion 411, the sliding bead 8, or a portion of the displacement member 41 in the positioning groove 71, a control groove 715 is further provided in the positioning groove 71. The control lever 21 passes through the control groove 715 to restrict the displacement locking protrusion 411, the sliding bead 8, or a portion of the displacement member 41 in the positioning groove 71 from separating from the centering slide-down wall 7131.

[0142] A centering guide wall 7132 is further provided on the centering boss 713 and on the side closer to centering destination A. A centering switching wall 714 is provided in the positioning groove 41. A centering passage B2 is further provided between the centering switching wall 714 and the centering boss 713. When the displacement member 41 moves from centering destination A, it enters the centering passage B2 while being guided by the centering guide wall 7132, and then reaches above centering destination B via the centering switching wall 714. At this time, if the external force is released, the displacement member 41 falls back into centering destination B.

[0143] An auxiliary reset member 31 is provided between the control member 2 and the touch assembly 6 .

[0144] The touch assembly 6 includes a position limiting member 61, a touch ring 62, and a touch cover 63. The position limiting member 61 is interconnected with the control member 2 through the touch cover 63, and the control member 2 follows the movement of the position limiting member 6. The touch cover 63 and the outer rod 1 are connected with each other, and the touch cover 63 does not move relative to the outer rod 1. The touch ring 62 is located between the position limiting member 61 and the touch cover 63. Touch-assist inclined rings C are provided below the position limiting member 61, above the touch ring 62, below the touch ring 62, and / or above the touch cover 63. When the touch assembly 62 is pressed by an external force, the touch-assist inclined rings C can move the control member 2 upward relative to the positioning groove 71, causing the control lever 21 to move upward and slide the displacement member 21 from the centering point B to the centering back point A.

[0145] In order to facilitate the attachment of the slide beads 8 to the movable groove, a slide bead attachment groove is provided in the positioning groove 71, the depth of the slide bead attachment groove is deeper than the other parts of the positioning groove 71, and an attachment slope is provided between the slide bead attachment groove and the other parts of the positioning groove 71, and the attachment slope is used to cushion the attachment of the slide beads and to allow the slide beads 8 to move from the slide bead attachment groove into the positioning groove 71.

[0146] The installation method involves first assembling the positioning member 7, the sliding bead 8, and the adjustment member into the adjustment assembly, inserting the positioning member 7 into the adjustment member 4, and then installing the sliding bead 8 between the positioning groove 71 and the movable groove 81 via the sliding bead installation groove. At this point, the adjustment assembly is complete, and normal installation can be carried out.

[0147] When the first lifting centering means is adopted, the adjustment member 4 is moved upward by an external force, and the displacement member 41 moves between the centering boss 713 and the control member 2 via the centering switching wall 714 on the positioning groove 71, and remains at the centering destination B. When the first touch-based centering means is adopted, when the product of the present invention is placed directly on a storage container such as a desktop, bag, pencil case or pocket, the touch ring 62 is contacted by the storage container, and the force generated by the contact is transmitted to the position limiting member 61, which then moves upward, and the control member 2 moves upward. When the control member 2 moves upward, the slide piece 8 loses the restriction of the control member 2 and slides down along the centering slide-down wall 7131 to the centering return destination A, and at this time the tool body is completely hidden inside the pen replacement part D.

[0148] Example 7 The mechanical pencil shown in FIGS. 33 to 36 differs from Example 6 in that Here, the displacement member 41 is further provided with a rotation through hole 41F and a rotation fastener 4121, a rotation member 82 is further provided within the rotation through hole 41F, and the rotation member 82 is further provided with a rotation boss 412, a displacement portion 821, and three rotation contact bosses 82H, and when the rotation boss 412 is pressed into the rotation through hole 41F, the turning member 82 becomes rotatable relative to the rotation through hole 41F, and a displacement portion 821 is provided at the other end of the rotation member 82, and the displacement portion 821 directly contacts the positioning groove 71 instead of the displacement member 41. The rotation fastener 4121 is divided into a clamp portion 4131, a deformation notch 713K, and an engagement portion 4132. The rotating fastener 4121 is fastened to the side surface of the displacement member 41 in the form of a fastener via the engagement portion 4132, and a corresponding clamp engagement groove 41Y is provided on the displacement member 41. After the engagement portion 4132 engages with the clamp engagement groove 41Y, a clamping force is continuously applied to the rotating member 82 via the clamp portion 4131 and the deformation notch 713K, thereby providing a certain damping effect to the left and right rotation of the rotating member 82 and overcoming interference due to gravity.

[0149] The above-mentioned rotating contact boss 82H can effectively reduce the friction force between the rotating member 82 and the displacement member 41, overcome the interference caused by gravity, and have a sensitive adjustment ability, thereby improving the user experience.

[0150] A certain amount of space needs to be provided behind the clamping portion 4131 so that the clamping portion 4131 can deform rearward.

[0151] In this embodiment, a means is adopted in which the rotary boss is disposed on the rotary member, and the rotary boss is disposed higher than the displacement portion 821, thereby making full use of the internal space, reducing the overall length, increasing the external design space, and enabling a wider range of pen lead specifications to be accommodated. In addition, since the body of the displacement member 41 is attached to approximately the center of the upper end, a rotation opening 4K is further provided between the displacement member 41 and the adjustment member 4, and the displacement portion 821 of the rotation member 82 enters and moves into the positioning groove 71 through the rotation opening 4K.

[0152] A centering guide wall 7132 is further provided on the centering boss 713 on the side closer to centering destination A. A centering switching wall 714 is further provided in the positioning groove 71. A centering passage B2 is further provided between the centering switching wall 714 and the centering boss 713. When the displacement member 41 moves upward from centering destination A, it enters the centering passage B2 under the influence of the centering guide wall 7132, and then passes through the centering switching wall 714 to reach above centering destination B. At this time, if the external force is released, the displacement member 41 will fall back down to centering destination B.

[0153] The positioning groove 71 contains multiple layers with different heights and offsets. A smooth slope D3 is provided between the lowest layer D2 and the upper layer D1. For example, if the area associated with centering destination A forms the upper layer and the area associated with centering destination B forms the lower layer, both of which are lower than centering destination A, the displacement member 41 will have difficulty returning to centering destination A via the original path after moving from centering destination A to centering destination B, forming a one-way valve-like circuit. On the other hand, the smooth slope allows the displacement member 41 to easily return from the end of the bottom layer to the start of the upper layer. The difference in the installation method is that one end of the rotating member is covered by the rotating boss of the adjusting member, and after the positioning member is inserted into the adjusting member, the displacement portion at the other end is attached to the positioning groove. At this point, the adjustment assembly is complete. The centering and centering means are the same as in Example 6, with only the specific structure of the displacement member 41 replaced.

[0154] Example 8 The mechanical pencil shown in Figures 37 to 41 includes an outer rod 1, a reset member 3, a tool body 5, an adjustment member 4, and a positioning member 7. The positioning member 7 is provided with a positioning groove 71, The adjustment member 4 is provided with a displacement member 41 , which is movable within the positioning groove 71 .

[0155] The adjustment member 4 is further provided with a lateral pushing portion 4A, and the outer rod 1 is provided with a lateral pushing groove 1A for accommodating the slide of the lateral pushing portion 4A. The lateral pushing portion 4A allows the adjustment member 4 to be completely hidden within the outer rod 1 or to be partially exposed, allowing for both centering and re-centering by reverse pulling up, and the adjustment member 4 can be controlled by the lateral pushing portion 4A to perform centering and re-centering.

[0156] The outer rod 1 is further provided with a touch assembly 6 .

[0157] The outer rod 1 is provided with a cover 14, and the cover 14 is provided with a connecting body 11. The touch assembly 6 includes a position limiting member 61, a touch ring 62, and a touch cover 63. The position limiting member 61 passes through the touch cover 63 and is connected to the connecting body 11, and the touch cover 63 passes through the connecting body 11 and is connected to or hits the control member 2. When the touch cover 63 moves downward, the control member 2 is also pressed and moves downward. The touch ring 62 is located between the position limiting member 61 and the touch cover 63. Touch-assisting inclined rings C are provided below the position limiting member 61, above the touch ring 62, below the touch ring 62 and / or above the touch cover 63, The displacement member 41 is further provided with a displacement locking protrusion 411 and a sliding bead groove or a rotating boss 412, a sliding bead is further provided between the sliding bead groove and the positioning groove 71, a rotating member 82 is further provided on the rotating boss 412, one end of the rotating member 82 is covered by the rotating boss 412, the rotating member 82 is rotatable relative to the rotating boss 412, and the other end of the rotating member 82 is provided with a displacement part 821, the displacement part 821, the sliding bead or the displacement locking protrusion 411 directly contacts the positioning groove 71 instead of the displacement member 41. When leftward and rightward movement is required, the entire adjustment member 4 follows the leftward and rightward movement, The positioning groove 71 is further provided with a centering position limiting wall 716 and a centering return auxiliary wall 717 .

[0158] An auxiliary reset member 31 is provided between the control member 2 and the positioning member 7. The displacement member 41 is further provided with a rotation collision boss 413 for colliding with the rotation member 82 for adjustment.

[0159] The control lever 21 is further provided with a position limiting boss 211 and a fall control slope 21A, which limits the displacement member 41 instead of the control lever 21. When the control lever 21 moves downward, the displacement member 41 is moved upward by the urging force of the reset member 3, and the fall control slope 21A cooperates to return the displacement member 41 to the centering destination A. A centering switch wall 711 is provided within the positioning groove 71. The position where the centering switch wall 711 is located is the fall position and is also the area with the longest stroke, so the requirements for the slope are low and it is very easy to fall back. However, such a long-distance movement introduces many variables into the centering process, so the centering destination A can be changed by the centering switch wall 711 to be directly below or directly above the centering boss 713, which contributes to stability during centering and centering.

[0160] The positioning groove 71 is further provided with a retaining boss 719, and a fallback passage 71A is further provided between the position limiting boss 211 and the retaining boss 719 or between the inner wall of the outer rod 1 and the position limiting boss 211. The adjustment member 4 is further provided with an adjustment collision portion 42, The positioning member 7 is engaged between the maximum position limiting boss 77 of the outer rod 1 and the cover 14, The rotating boss 412 may further be provided with a rotating fastener 4121, which is provided with a rotating engagement portion 41211, a pressure piece 41212 and a pressure pillar 41213. When the pressure pillar 41213 collides with the rotating member 82, the pressure piece 41212 provides a tough rebound, and the rotating engagement portion 41211 engages with the rotating boss 412, stably fixing the rotating fastener 4121 to the rotating boss 412.

[0161] The adjustment member 4 is provided with a rotation stabilizing boss 45. The displacement member 41 is further provided with a rotation collision boss 413 for colliding with the rotation member 82 for adjustment.

[0162] The installation procedure is as follows: Step 1: Assemble the adjustment member 4, the rotation member 82 and the positioning member 7 into an adjustment assembly, and then insert them into the outer rod 1 from top to bottom. Step 2: Next, the auxiliary reset member 31, the control member 2, the cover 14, the touch cover 63, the touch ring 62, and the position limiting member 61 are assembled into the outer rod 1 in order from top to bottom, whereby the cover 14 and the outer rod are screwed together, and the position limiting member 61 and the connector 11 of the cover 14 are secondarily screwed together. Step 3: Reinsert the side pushing portion 4A into the side of the outer rod 1 and directly engage it with the adjustment member 4. Step 4: Finally, insert the tool body 5, reset member 3, pen grip cover T and pen replacement part into the adjustment rod in that order, and then fit the pen replacement part and outer rod 1 together.

[0163] When the third centering means using lateral pushing is adopted as the centering means, an external force is applied to control the adjustment member 4 to move downward through the lateral pushing section, and the displacement member 41 moves downward from the centering return destination A, and after entering the centering passage B2 under the guide of the centering guide wall 7132, it reaches above the centering destination B through the switching long wall 71B. At this time, when the external force is released, the displacement member 41 returns to the centering section B, and the centering is completed.

[0164] The following two types of core return means are simultaneously provided: As one of the core return means using lateral pushing, when an external force is applied to control the adjustment member 4 to move further downward using the lateral pushing portion 4A, the displacement member 41 continues to move downward, and then, after the displacement member 41 bypasses the restriction of the position limiting boss 211 via the core return auxiliary wall 717 in the positioning groove 71, it returns to the core return destination A due to the repulsive force of the reset member 3. As one of the means for returning the core by touch, the surrounding external force is collected through the touch ring, and the force collected in the touch ring is transmitted to the control member by the touch cover. When the displacement member 41 causes the control member 2 to move so that it is no longer restricted by the control member 2, the displacement member 41 moves under the influence of the reset member 3, thereby achieving the return of the core.

[0165] The centering means adopted in this embodiment is relatively special in that, compared with the previous embodiment, the adjustment member 4 is not handled at the tail end or the front end, but is handled at the side with the assistance of the side pushing portion 4A. The side pushing portion 4A can be molded integrally with the adjustment member or realized as a separate part. If one-piece molding is adopted, the side pushing portion 4A needs to be deformed later relative to the adjustment member 4 for easy installation, so this embodiment chooses to adopt a form in which a separate part is used to engage.

[0166] Example 9 As shown in FIGS. 42 to 44, the tool includes an outer rod 1, a reset member 3, a tool body 5, and an adjustment member 4. The outer rod 1 is provided with a centering card base 73, an inner moving groove 74, and a positioning portion 72. The adjustment member 4 is provided with a displacement member 41, and the displacement member 41 is movable between the centering card base 73 and the inner moving groove 74. The centering card stage 73 and / or the displacement member 41 are further provided with a reverse push auxiliary slope 417. The control member 2 is provided with a release assist slope 24 .

[0167] The adjustment member 4 is provided with a displacement member 41 that is movable between a centering locking base 73 and a centering destination card table 74, and the tool body 5 and reset member 3 are arranged in the adjustment member 4, particularly between the tool body 5 and the adjustment member 4. The rear end of the tool body 5 abuts against the lower end of the positioning portion 72.

[0168] The centering card table 74 is a centering destination A. The centering card stage 73 is a centering destination B.

[0169] The touch assembly 6 is used to collect and transmit external touch force to the control member 2 to control the movement of the release assist slope 24 .

[0170] The control member 2 and the adjustment member 4 are connected by a sliding sleeve in the outer rod 1 .

[0171] The displacement member 41 is positioned at the center return destination A, and at this time the tool body 5 remains completely hidden inside the adjustment member 4, and is in a center return state.

[0172] When the displacement member 41 is positioned at the centering point B, the writing portion of the tool body 5 exposes the adjustment member 4, resulting in a centering state.

[0173] The touch assembly 6 includes a touch 64, a touch ring 62, and a rotary fixing member 65. The touch 64 is interconnected via a rotary farm 65 and a touch ring 62. The rotary farm 65 is fixed to the end of the outer rod 1. A rotary ring protrusion 641 is provided at the middle end of the touch 64, and a touch ring protrusion 642 is provided at the lower end of the touch 64. The touch 64 can tilt and / or move downward relative to the rotary fixing member 65 via the rotary ring protrusion 641. The rotary ring protrusion 641 cannot pass through the rotary fixing member 65. A lower shift ring protrusion 22 is provided at the end of the control member 2. When the touch ring protrusion 642 moves to the middle, it presses the lower moving ring protrusion 22, indirectly urging the release auxiliary slope 24 to move downward. When the release auxiliary slope 24 moves downward, the displacement member 41 disengages from the core deck 73 and returns to the core deck 74 under the influence of the reset body 3.

[0174] When the touch ring protrusion 642 rotates and / or moves downward, the control 2 moves downward, and when the control 2 moves downward, it directly collides with the control member 2 so that the displacement member 41 moves inward by releasing the auxiliary slope 24, and the engagement relationship between the displacement member 41 and the centering locking base 73 is eliminated.

[0175] When the adjustment member 4 is assembled into the outer rod 1 and the displacement member 41 enters above the core receiving boss 74, it is restricted by the core receiving boss 74 and is difficult to come off.

[0176] The reset member 3 and auxiliary reset member 31 of this embodiment use the repulsive force between magnets instead of the spring means of the other embodiments.

[0177] In this embodiment, by holding the outer rod 1 immobile, moving the external force tension displacement member 4 downward, and pushing the auxiliary slope 417 in reverse, the displacement member 41 can escape the restriction of the centering locking base 73, thereby realizing centering return storage by pushing in reverse back to the centering return destination A.

[0178] The installation procedure is 1. First, insert the auxiliary reset component, control component, touch component, and rotation fixing component into the outer rod from top to bottom, and then fit the rotation fixing component into the outer rod. 2. The adjusting member is then inserted into the outer rod from bottom to top, and the displacement member enters the inner moving groove to form an engagement, so that the adjusting member is difficult to separate from the outer rod. 3. Insert the tool body, reset piece, and pen replacement part into the adjustment lever in order, and then fit the pen replacement part and adjustment lever together. 4. Finally, fit the touch ring and touch together.

[0179] The centering method employs the centering means 4, which keeps the outer rod 1 stationary and moves the adjustment member 4 to the end of the touch assembly by external force. When the displacement member 41 is moved from the centering table 74 to the core ejection table 73 and the external force is then released, the displacement member 41 and the core ejection table 73 are engaged by the biasing force of the reset member 3, maintaining the core ejection state.

[0180] The following three core return methods are available simultaneously: 1. Method 3 for pressing the core return tip: By pressing the touch ring 62 with an external force, the touch ring 62 presses the touch cover 63 or the touch 64, and the touch cover 63 or the touch 64 can press the control member 2, and the control member 2 moves the displacement member 41 inward, detaching the displacement member 41 and the centering locking base 73, and returning the displacement member 41 to the core return tip part A by the reset member 3; 2. Counter-centering return destination method 1: The outer rod 1 is held stationary, and the external force pulling displacement member 4 moves downward and passes through the reverse-pushing auxiliary slope 417, so that the displacement member 41 is released from the restriction of the centering locking table 73 and returns to the centering return destination A; 3. Touch lead reset method 2: When the product of the present invention is directly placed on a storage object such as a desktop, bag, stationery box or pocket, the touch ring 62 will come into contact with the object, and the force generated by the contact will be transmitted to the touch ring 62, causing the touch ring 62 to tilt, causing the control member 2 to move downward, which in turn disengages the displacement member 41 and the centering locking base 73. The displacement member 41 will be acted upon by the reset member 3 and slide down to the centering point A, at which point the tool body will be completely hidden within the pen replacement part D.

[0181] Example 10 A mechanical pencil and its operating method as shown in Figures 45-46, Mechanical pencils and their operation methods, The tool includes an outer rod 1, a return tool 3, a tool body 5, and an adjustment member 4. The outer rod 1 is provided with a centering card base 73, an inner moving groove 74, and a positioning portion 72. The adjustment member 4 is provided with a displacement member 41, which is movable between a centering card base 73 and an inner moving groove 74. The control member 2 is provided with a release assist slope 24 . The inner moving groove 74 limits the maximum moving distance of the displacement member 41, thereby preventing the adjustment member 4 from being separated from the outer rod 1 after being assembled into the outer rod 1. The inner moving groove 74 does not penetrate the outer rod 1, but is located on the inner wall of the outer rod 1 and is directly connected to the centering locking base 73. To realize the touch-based centering means, the outer rod 1 is provided with a connecting body 11 and a touch assembly 6. The touch assembly 6 includes a position limiting member 61, a control member 2, a touch ring 62, a touch cover 63, and a release assist slope 24 at the lower end of the control member 2. The position limiting member 61 is connected to the touch cover 63 via the connecting body 11, and the touch cover 63 is connected to or hits against the connection body 11 and the control member 2. When the touch cover 63 moves downward, the control member 2 is also pressed down. The touch ring 62 is located between the position limiting member 61 and the touch cover 63, and a touch assist inclined ring C is provided below the position limiting member 61, above the touch ring 62, below the touch ring 62 and / or above the touch cover 63. An auxiliary reset member 31 is further provided between the positioning portion 72 and the control member 2 . In order to center the pressing rod, a pressing rod 75 is provided on the outer rod 1. The centering card base 73 is provided with an interlocking passage 731 that passes through the outer rod 1, and the displacement member 41 contacts the pressing lever 75 through the interlocking passage 731. The pressing lever 75 is attached to the outer rod 1 by integral molding. The pressing rod 75 has a pressing protrusion 751, As an extension of its uses, the pressing lever 75 can also be used as a pen holder. The displacement member 41 is provided with a displacement locking protrusion 411 to improve contact and engagement with the pressing lever.

[0182] Installation method, 1. First, insert the auxiliary reset component, control component, touch component, and rotation fixing component into the outer rod from top to bottom, and then fit the rotation fixing component into the outer rod. 2. The adjusting member is then inserted into the outer rod from bottom to top, and the displacement member enters the inner moving groove to form an engagement, so that the adjusting member is difficult to separate from the outer rod. 3. Insert the tool body, reset piece, and pen replacement part into the adjustment lever in order, and then fit the pen replacement part and adjustment lever together.

[0183] The centering method adopts the centering method 4 by pulling up, the external force control displacement member 4 moves upward, and the displacement member 41 moves from the centering return point A directly onto the centering locking base 73, and when it engages with the centering locking base 73, the centering is completed. At the same time, it has the following four types of core return methods: 1. Method 3 for pressing the core return tip: By pressing the touch ring 62 with an external force, the touch ring 62 presses the touch cover 63 or the touch 64, and the touch cover 63 or the touch 64 can press the control member 2, and the control member 2 moves the displacement member 41 inward, detaching the displacement member 41 and the centering locking base 73, and returning the displacement member 41 to the core return tip part A by the reset member 3; 2. Counter-centering return destination method 1: The outer rod 1 is held stationary, and the external force pulling displacement member 4 moves downward and passes through the reverse-pushing auxiliary slope 417, so that the displacement member 41 is released from the restriction of the centering locking table 73 and returns to the centering return destination A; 3. Touch core return method 2: When the product of the present invention is placed directly on a storage item such as a desktop, bag, stationery box or pocket, the touch ring 62 will be contacted by the storage item, and the force generated by the contact will be transmitted to the touch ring 62, causing the touch ring 62 to move downward, and the touch cover 63 to move downward. When the touch cover 63 moves downward, the control member 2 moves downward. When the control member 2 moves downward, the control member 2 disengages from the displacement member 41 and the core output deck 73, and the displacement member 41 is acted upon by the reset member 3 and slides down to the core return destination A. At this time, the tool body H is completely hidden in the pen replacement part D. 4. Method 1 for returning the center of the push rod: The external force of the push rod 75 contacts one end of the displacement member 41, and the push rod 75 presses the displacement member 41 to separate it from the centering locking base 73. When the displacement member 41 separates from the centering locking base 73, the reset member 3 acts to move the displacement member 41 downward to the centering destination A.

[0184] Any of the above Examples 1 to 8 has the following additional content: 1. The surfaces of the control lever 21 and the touch ring should be as smooth as possible to reduce the friction, thereby reducing the force required for touching and further enhancing the effect of touching. 2. In the above-mentioned second and third embodiments, the centering boss 713 is provided with a corresponding small fall slope 7133 so as to be easily aligned with the fall auxiliary slope 213. 3. The small inclined slope 7133 has a small slope area, so it does not affect the efficient engagement between the centering boss 713 and the displacement member 41. 4. In order to better fit with the centering auxiliary slope B1, the centering boss 713 is provided with a corresponding centering small slope 7134, which has a small slope area and does not affect the engagement between the displacement member 41 and the switching long wall 71B. 5. To ensure the stability of the entire structure, when the positioning groove 71 is provided in the outer rod 1, the outer rod 1 is further provided with a centering position limiting wall 712. When the positioning groove 71 is provided in the positioning member 7, the positioning groove 71 is provided with the centering position limiting wall 712, or the inner wall of the outer rod 1 has the same function as the centering position limiting wall 712 and plays the role of position limiting. 6. The outer diameter of the touch ring 62 is larger than that of the outer rod 1. An extension rod 23 may be extended from the lower end of the control member 2. A touch inclined surface 621 is additionally provided at the lower end of the touch ring 62. The extension rod 23 can enhance the internal structure to prevent the adjustment member 4 from swinging and / or coming off the outer rod 1, and can further limit the position of the control member 2 to prevent unnecessary swinging and rotation of the control member 2 itself, thereby better stabilizing the internal structure. The inclination angle of the touch inclined surface is determined by the set touch inclination angle. For example, a 10° inclination can complete the centering by touch, and a slope inclination angle of 10° or more can enhance the touch effect. 7. In order to facilitate replacement and installation of the pen cartridge, a pen replacement part D can be separated from the tip of the adjusting member or the outer rod. 8. The tool body 5 itself is a tool that can accommodate various common pen leads inside. 9. The reset member 3 actually provides a continuous force, and therefore the reset member 3 and the auxiliary reset member 31 are made of an elastic material, and may be made of a magnetically attractive material, a magnetically attractive material, an elastic material and / or a reset spring, or a combination thereof, and are generally springs as shown in most of the embodiment figures. 10. The elastic force of the auxiliary reset member 31 is smaller than the elastic force of the reset member 3.

[0185] In addition, the following content will be specifically added and explained: 1. In the embodiment, it is stated that "the control lever 21 can only move up and down or back and forth relative to the positioning groove 71, but cannot move left and right." This is because the actual situation of the embodiment is taken into consideration and stability when writing is taken into account. It does not mean that it must be designed in this way. It is also possible to adopt methods that allow it to tilt up, down, forward, backward, move left, or move right, but this design will slightly worsen the user experience. Therefore, it is necessary to additionally design a guide structure in the internal structure to accommodate such operating directions. In addition, if the adjustment member is not moved, the positioning member 7 must be rotatable. In this case, the positioning member 7 is rotatable relative to the outer rod, so a technical solution in which the positioning member 7 is rotatable also falls within the protection scope of the present invention. 2. Regarding the positional relationship between the control member 2, the adjustment member 4, the positioning member 7, and the touch assembly, these components have great flexibility and are subject to change, so there are many possible combinations of positional relationships. This does not imply an absolute positional relationship, but is primarily intended to realize the operation method and design concept expressed in this invention. 3. After the adjustment member 4 is assembled into the outer rod 1, it can be prevented from coming off in many ways, such as by restricting the position of the positioning groove 71, the positioning portion 72, the positioning member 7 and / or the control member 2 themselves, and by restricting the position of their derivatives and the adjustment member 4. These methods can be solved by those skilled in the art, so these issues will not be described in detail. For example, in Example 1, the rotation member 82 is inserted between the pivot boss on the displacement member 41 and the positioning groove 71, thereby allowing the adjustment member 4 to come off from the outer rod. 4. When the displacement member 41 deforms, a certain amount of deformation space needs to be provided within the internal space, and the deformation space can be provided according to the actual situation, which allows those skilled in the art to solve the problem of subsequent movement when deformation occurs. For example, in Example 1, the extension rod 23 is provided with a deformation groove 231, which can solve the problem of subsequent movement when deformation occurs when the displacement locking protrusion 411 passes through the centering boss 713. 5. The prevention of left and right movement of the control lever 21 can be achieved by providing an associated locking protrusion on the outer rod and a corresponding locking protrusion on the control lever 21. The maximum upward and downward movement limits of the control lever 21 can be achieved simply by providing the associated locking protrusions in the outer rod, so the specific positions of the maximum upward and downward movement limits can be determined according to the actual situation. 6. When the control member 2 moves upward to perform centering, it can be used normally without providing an auxiliary reset 31 between the control member 2 and the touch assembly 6. The control member 2 can be reset by moving downward using its gravity, so the friction force of the sliding part of the control member 2 inside the outer rod 1 needs to be small, and it is more effective if the control member 2 itself has a certain gravity. To make the operation more stable, it is better to use an auxiliary reset 31, and the elastic force of the auxiliary reset 31 does not need to be too large, as it is sufficient to reset the control member 2. 7. The pull-up centering has two methods, which can coexist with the touch-based centering. If it is realized by adopting an internal structure, it is preferable to adopt the method of Example 1. If it is necessary to show it to the user, it is sufficient to adopt the method of Example 3. If it is necessary to adopt centering by pressing, it is sufficient to adopt Example 2. Of course, there are still many specific combination methods and details that can be optimized. However, without departing from the design concept and principles of the present invention, some modifications and improvements can be made, which should also be considered as part of the protection scope of the present invention. 10. The positioning groove 71 does not only have the above-mentioned several passages. For example, there is also a centering passage between the centering boss 713 and the centering switching wall 711. Such a normalized passage does not need to be specifically referred to, and it should be understood that the passage in the positioning groove 1 is used for the displacement member 41 and its associated deformation member to pass through. 11. If the "touch assembly" is not adopted, when the control lever is operated independently, a part such as the touch cover 63 must be added to the outer rod to engage with the outer rod. This part such as the touch cover 63 can be integrated with the outer rod, so there is no need to explain it separately. However, as in Example 4, a through hole is also provided in the middle of this part such as the touch cover 63, and it is sufficient that this through hole is exposed on the control lever and can be touched by people, as shown in Example 4. 12. The included angle between the re-centering switch wall 711, the long switch wall 71B, the re-centering position limiting wall 712, the centering slide-down wall 7131, the control switch wall 212, the re-centering auxiliary wall 717 and / or the re-centering guide wall 7132 and the horizontal line is generally between 15° and 80°. The re-centering position limiting wall 712 may be 90° or other angles, with an angle of around 45° being more preferred, for example, 50°, 40°, 55°, 60°, 58°, 42°, 35° and / or 65° being more appropriate. However, the specific angle limit is mainly determined by the pen centering stroke and the pen re-centering stroke and is subject to actual testing. 13. The lengths of the centering switch wall 711, centering auxiliary wall 717, long switch wall 71B, centering position limiting wall 712, centering slide-down wall 7131, control switch wall 212, and / or centering guide wall 7132 and their relative positions within the positioning groove are determined primarily to ensure the passage efficiency and error tolerance of the displacement member 41. For example, the horizontal distance between the end point of the centering slide-down wall 7131 closest to the centering destination B and the end point of the centering position limiting wall 716 closest to the centering slide-down wall 7131 must be greater than the width of the displacement member, ensuring stable contact with the centering auxiliary wall 717 during upward or downward movement. The linear distance between the end point of the centering slide-down wall 7131 farthest from the centering destination B and the long switch wall 71B must be greater than the outer diameter of the displacement member 41, ensuring smooth passage of the displacement member. On the other hand, the horizontal distance between the end point of the centering slide-down wall 7131 that is far from the centering destination B and the end point of the centering position limiting wall 716 that is close to the centering slide-down wall 7131 must be greater than the width of the displacement member, so as to ensure that the displacement member can stably contact the centering slide-down wall 7131 during its upward or downward movement. 14. When the control switch wall is not used, the switch long wall or the back-return auxiliary wall can be extended further above or below the position limiting boss to cover the area directly above or below it. This allows the displacement member or its replacement part to bypass the influence range of the position limiting boss when passing through, thereby ensuring the normal operation of the first lifting means. Meanwhile, the position limiting recoil slope can serve as a certain slope guide, reducing the requirements for the coverage rate of the switch long wall or back-return auxiliary wall. 15. In some embodiments, the positioning member 7 and the touch cover 63 can be manufactured as a single unit according to the actual situation, thereby saving the cost of the mold and the installation process. 16. To enable the rotating member to counteract the negative interference caused by gravity, it is preferable to add a clamping structure to the adjusting member itself, for example, to clamp the rotating member from the front and rear. This eliminates the need for a clamp between the adjusting member and the positioning member. By clamping the rotating member independently, stability is improved, significantly reducing the precision requirements for the displacement member 821. There are many other ways for the rotating member to counteract gravity. For example, first, the ring surface of the rotating boss 412 can be textured to increase the friction between the rotating member 82 and the rotating boss 412, thereby counteracting the negative effects of gravity. Second, an elastic member can be added to restrict the rotating member. Third, a magnet can be used to provide magnetic attraction to the rotating member to counteract gravity interference. Fourth, the friction force of the positioning groove can be increased. Fifth, a multi-layer structure can be used in the positioning groove to prevent the rotating member from reciprocating. Sixth, a stepped restriction can be added to the displacement member 41 to constrain the rotating member. 17. The switching wall 71B itself has two main functions: first, to assist in centering, and second, to assist in back-centering. These two seemingly contradictory functions may exist alone or simultaneously, depending on actual needs. This is because, for greater stability and error tolerance, the back-centering cooperation function of the switching wall 71B in Example 4 is replaced by the back-centering auxiliary wall 717, and the switching wall 71B is now only responsible for assisting in centering. On the other hand, in Example 5, there is no need to cooperate in centering, so it only needs to provide the function of assisting back-centering. 18. In order to further improve the stability of the control member 2, the control groove that accommodates the control lever 21 can be extended further downward or upward to form a deep control groove 7151. If the head portion of the control lever 21 is also extended, even if the control member 21 moves upward or downward to its maximum distance in the touch state, part of the head of the control lever 21 will also be held within the deep control groove 7151. This will prevent a cavity from being formed in the positioning groove when the displacement member 41 falls back, thereby ensuring the overall stability of operation. 19. Although the position limiting boss 211 is a part of the control lever 21 and replaces part of the position limiting function of the control lever 21, this structure itself is of great significance and cannot be regarded as a mere extension of the control lever 21. The placement of the position limiting boss 211 significantly upgrades the overall function of the invention, broadening the range of different re-centering methods, including pull-up re-centering and pressure re-centering, which is an important technical point. The rebound assist slope 213 further complements and broadens the range of functions that the position limiting boss 211 can achieve. Whether the position limiting boss 211 is an independent, separate part or is replaced with a similar structure, it all falls under the category of equivalent replacement. Equivalent replacement of other similar parts of the present invention is also considered within the scope of protection of the present invention. 20. The above definition of "bypass" means starting from the centering point B and going around the position limiting boss 211. For example, by going around the position limiting boss 211 halfway up or down and going to the other side of the position limiting boss 211 that corresponds to the centering point B, it is possible to move away from the original centering point B and achieve center return. 21. Regarding the definition of "overcome" above, it means moving from the centering point B as a starting point onto the main body of the position limiting boss 211. This is because the position limiting boss 211 itself serves the role of temporarily limiting the position limiting boss 211, and the adjustment member can overcome the position limiting boss 211 using an auxiliary method such as a similar backlash auxiliary slope. However, to ensure validity, it is preferable for the adjustment member not to overcome the position limiting boss 211 from the centering point B, and it is more preferable for the adjustment member to overcome the upper or lower side of the centering limiting boss. Specifically, whether the adjustment member overcomes the position limiting boss 211 from above or below the centering point B is determined by the orientation of the positioning groove in the adopted plan, and the orientation of the positioning groove is determined by whether the lifting plan or the pressing plan is adopted. For example, after first rotating from the centering point B above or below the position limiting boss 211, the force of the reset member causes the displacement member 41 to rebound and rise or fall, and when it comes into contact with the above or below the position limiting boss 211, the recoil auxiliary slope causes the displacement member 41 to climb over the position limiting boss 211, thereby reaching the side opposite the recoil auxiliary slope, thereby achieving centering back. 22. The main role of the positioning part 72 is to impact the tool body 5 instead of the positioning member 7, restricting the rear end of the tool body 5, so that the centering and re-centering can be accurately controlled by simply displacing the adjustment member. Therefore, the positioning part 72 may be molded integrally with the outer rod, or may be separated into an independent part, or may be incorporated into the outer rod in the form of a part. 23. For better contact, the control lever 21 collides with the displacement member 41 to restrict it, but its main support point is designed to be the centering boss 713 in the positioning member groove, so that the centering boss 713 mainly bears the biasing force of the reset member 3, ensuring that the force required to pull out the control lever 21 to release the position restriction and achieve centering by touch is just a collision force. 24. As can be seen from Examples 1 and 7, the engagement method between the rotating member 82 and the rotating boss 412 is also very diverse. It is not limited to having a hole in the rotating member 82, but the rotating member 82 may be fitted into the rotating boss 412, the rotating member 82 may have a rotating boss 412, or the displacement member 41 may have a rotating through hole 41F and the rotating boss 412 on the rotating member 82 may be attached to the rotating through hole 41F. 25. The structural changes of this invention are numerous, and the interlocking relationships between the components, their positional relationships, the actual operating points, the points where the structure directly impacts, the different application scenarios such as whether the pen replacement part is placed on the outer rod, the inner rod, or the cover, and the structural changes of the outer rod are all based on actual situations. The following are the changes that should be noted: First, the part where the tail of the tool body hits can be the bottom of the positioning tool, the adjusting hit part of the adjusting member, or the positioning part of the outer rod. Correspondingly, when the tail of the tool body hits the bottom of the positioning tool or the positioning part of the outer rod, the movement of the positioning tool directly determines the exposure and centering of the tool body, and the reset tool and the tip of the tool body are also basically located within the positioning tool. When the tail of the tool body hits the adjusting hit part of the positioning tool, the movement of the positioning tool indirectly determines the exposure and centering of the tool body, and in this case, the reset tool and the tip of the tool body are basically located within the outer rod. Second, the auxiliary reset member may be located between the control member and the cover, between the positioning member and the control member, between the control member and the outer rod, between the control member and the touch cover, or between the control member and the adjusting member. Different positions will result in corresponding structural changes. Third, there are many changes in the operation points, such as tip operation, tail operation, side operation, 360-degree touch operation, pen holder operation, pressing operation, reverse pressing operation, and side pressing operation, and pressing operation can be divided into various cases. Fourth, the position of the positioning groove is variable and can be placed on the positioning member or the outer rod, which will bring about different visual effects and actual production situations. Fifth, the notch shape structure of the positioning groove is varied, and the structure of the positioning groove has a great number of different combinations according to the operating functions actually realized. Sixth, there are many variations in the control components, and the changes in the shapes and structures of the control components are also complicated. The variations in the positioning groove, the required operating method, the installation direction, and other factors affect and interfere with each other to determine the variations in the control components. To a certain extent, the stability of the displacer can be improved by adding a stabilizing structure to some of the control components. Seventh, there are many variations of the pressure rod. The pressure rod can be integrally manufactured, fixedly mounted, or swivel mounted based on factors such as the craft, manufacturing, and required operating effect. In the case of a swivel mounted, it can have a structure in which one end is fixed, one end is swivel, or the center is fixed and both ends are swivel. Eighth, there are many variations in the touch assembly. The touch assembly can be selected to move the position limiting member or the touch cover as needed, or it can also be moved by the touch lever. The touch method of the present invention is very varied, and the present invention only lists some examples. Ninth, the outer rod can be changed in many ways, the tail can be changed with a cover or a rotating member, and a connector, a pressing rod, a pen holder, a pen replacement part and / or a positioning part can be added. Tenth, the adjustment components are varied in many ways, resulting in a wide range of adjustment variations and different functions and effects. The upper end of the outer rod may be partially exposed, the lower end of the outer rod may be partially exposed, the outer rod may be partially exposed on the side, or the outer rod may be completely hidden within the outer rod. The shape and structure of the adjustment components also vary accordingly; for example, the shapes of many of the adjustment components in the examples do not appear to be identical parts. The range of variations in the adjustment components is so great that the functions and effects achieved are also very strong. By varying the adjustment components, a wide variety of centering and re-centering operations can be realized, and a variety of different centering operations or a variety of different re-centering operations can be realized simultaneously. Although the adjustment components vary in this way, they can all be roughly described as the same part; the variations are merely adaptive adjustments according to actual conditions and needs.

Claims

1. The tool includes an outer rod (1), an adjustment member (4), a tool body (5), a reset member (3), and a control member (2), wherein the adjustment member (4) is provided with a displacement member (41), which is movable within a positioning groove (71), and the positional state of the tool body (5), which has two positional states, i.e., centering back and centering, is determined by displacement of the adjustment member (4) provided within the outer rod (1), the adjustment member (4) relatively stabilizes the two positional states, i.e., centering back and centering, via the positioning groove (71), the reset member (3), and the control member (2), the reset member (3) relatively stabilizes the state when the displacement member (41) on the adjustment member (4) is positioned at a centering back destination (A), and when the displacement member (41) moves to a centering destination (B) within the positioning groove (71), the control member (2) restricts the displacement member (41), thereby stabilizing the centering positional state. The lead return method of the mechanical pencil is characterized by at least including a method in which an external force affects the movement of a control member (2), and when the displacement member (41) is released from the restriction of the control member (2), the displacement member (41) moves under the influence of a reset member (3) to realize lead return.

2. The outer rod (1) is provided with a touch assembly (6), and the control member (2) is moved by the touch assembly (6) to achieve centering back. The positioning member (7) is provided with a positioning groove (71), and the positioning groove (71) is provided with a centering boss (713) and a centering return switching wall (711), The control member (2) is provided with a control lever (21), and the displacement member (41) has the following five means: As a first core return means, a position limiting boss (211) is provided on the control lever (21), and a switching long wall (71B) is further provided in the positioning groove (71), the position limiting boss (211) provides a limit to the displacement member (41) instead of the control lever (21), and when the core is returned, the displacement member (41) moves up or down to bypass the limit of the position limiting boss (211) via the switching long wall (71B), and then returns to the core return destination (A) via the core return switching wall (711); As a second core return means, a position limiting boss (211) is provided on the control lever (21), a switching long wall (71B) is further provided on the positioning groove (71), the position limiting boss (211) limits the displacement member (41) instead of the control lever (21), the position limiting boss (211) is provided with a fall assist slope (213), the displacement member (41) moves up or down and reaches the upper or lower side of the position limiting boss (211) via the switching long wall (71B), then overcomes the limit of the position limiting boss (211) via the fall assist slope (213), and then returns to the core return destination (A) via the core return switching wall (711); As a third core return means, the control lever (21) is further provided with a position limiting boss (211) and a fall control slope (21A), and the position limiting boss (211) limits the displacement member (41) instead of the control lever (21), and when the control lever (21) moves downward, the displacement member (41) moves upward under the influence of the biasing force of the reset member (3), and returns to the core return destination (A) with the assistance of the fall control slope (21A); As a fourth core return means, core return is realized by movement control, and when the control member (2) is forced to move by an external force and the displacement member (41) is released from the restriction of the control member (2), the displacement member (41) moves downward or upward under the influence of the reset member (3), thereby releasing the control member (2) from the restriction on the displacement member (41), and the displacement member (41) returns to the core return destination (A) via the core return switching wall (711); As a fifth core return means, core return is realized by reverse pushing, and a reverse pushing auxiliary slope (417) is provided on the displacement member (41) and / or the centering boss (713), and with the outer rod (1) stationary, the adjustment member (4) is pulled and moved downward by an external force, and the displacement member (41) is released from the restriction of the centering boss (713) via the reverse pushing auxiliary slope (417), and then returns to the center return destination (A); 2. The mechanical pencil according to claim 1, wherein the lead can be returned via any one of the lead return means.

3. The adjusting member (4) is further provided with a lateral pushing portion (4A), the outer rod (1) is provided with a lateral pushing groove (1A) for accommodating the slide of the lateral pushing portion (4A), the positioning groove (71) is further provided with a retaining boss (719), and a fall-back passage (71A) is further provided between the position limiting boss (211) and the retaining boss (719) or between the inner wall of the outer rod (1) and the position limiting boss (211), The positioning groove (71) is further provided with a centering position limiting wall (716) and a centering return auxiliary wall (717), The mechanical pencil of claim 2, characterized in that, as one of the lead return means by lateral pushing, when the lateral pushing portion (4A) moves the adjustment member (4) further downward by external force, the displacement member (41) continues to move downward, and then, after bypassing the restriction of the position limiting boss (211) via the lead return auxiliary wall (717) on the positioning groove (71), the displacement member (41) returns to the lead return destination (A) due to the repulsive force of the reset member (3).

4. The mechanical pencil according to any one of claims 1 to 3, wherein the touch assembly (6) includes a position limiting member (61), a touch ring (62), and a touch cover (63), the position limiting member (61) passing through the touch cover (63) and being interconnected with the control member (2), the control member (2) moving in accordance with the position limiting member (61), when the touch ring (62) is pressed by an external force, the touch ring (62) presses the touch cover (63), which in turn presses the control member (2), the control member (2) moves the displacement member (41) inward, and further detaches the displacement member (41) from the centering boss (713), so that the displacement member (41) returns to the lead return destination (A) via the reset member (3).

5. The touch assembly (6) has at least three modes: a first type in which the touch assembly (6) includes a position limiting member (61), a touch ring (62), and a touch cover (63), the position limiting member (61) is interconnected with the control member (2) through the touch cover (63), the control member (2) moves following the position limiting member (61), the touch cover (63) is interconnected with the outer rod (1), the touch ring (62) is located between the position limiting member (61) and the touch cover (63), and a touch-assistance inclined ring (C) is provided below the position limiting member (61), above the touch ring (62), below the touch ring (62) and / or above the touch cover (63); a second type in which the outer rod (1) is provided with a connecting body (11), the touch assembly (6) includes a position limiting member (61), a touch ring (62), and a touch cover (63), the position limiting member (61) passes through the touch cover (63) and is connected to the connecting body (11), the touch cover (63) passes through the connecting body (11) and is connected to or hits the control member (2), and when the touch cover (63) moves downward, the control member (2) is also pressed and moves downward; the touch ring (62) is located between the position limiting member (61) and the touch cover (63), and touch-assisting inclined rings (C) are provided below the position limiting member (61), above the touch ring (62), below the touch ring (62) and / or above the touch cover (63); a third method in which the touch assembly (6) includes a position limiting member (61) and a touch ring (62), the control member (2) moves following the position limiting member (61), the touch ring (62) is located between the position limiting member (61) and the outer rod (1), and the position limiting member (61), the touch ring (62) and / or the outer rod (1) are provided with a touch-assistance inclined ring (C); 5. The mechanical pencil according to claim 4, wherein the mechanical pencil is realized by any one of the following methods.

6. As a solution for moving the displacement member (41) from the centering return point (A) to the centering point (B) within the positioning groove (71), at least the following three means are provided: a first means for providing a switching long wall (71B) in the positioning groove (71), and a centering assist slope (B1) at one end of the centering boss (713) close to the centering return destination (A) and / or at one end of the displacement member (41) close to the centering destination (B), the displacement member (41) itself having forward and backward deformation bending ability, so that when the displacement member (41) passes through the centering boss (713), it can climb over the centering boss (713) and reach the centering destination (B) by the centering assist slope (B1) and the deformation bending ability of the displacement member (41); a second means for providing a switching long wall (71B) and a centering slide-off wall (7131) in the positioning groove (71); a centering guide wall (7132) is further provided on the centering boss (713) on the side closer to the centering return destination (A); and a centering passage (B2) is further provided between the switching long wall (71B) and the centering boss (713), such that when the displacement member (41) moves from the centering return destination (A), it enters the centering passage (B2) guided by the centering guide wall (7132) and then reaches above or below the centering destination (B) via the switching long wall (71B); and when the external force is released at this time, the displacement member (41) recoils into the centering destination (B); a third means in which a switching long wall (71B) is provided in the positioning groove (71), a centering slide-off wall (7131) is provided in the centering boss (713), a centering passage (B2) is further provided in the centering boss (713), when the displacement member (41) moves from the centering return destination (A), it directly enters the centering passage (B2) and then reaches above or below the centering destination (B) via the switching long wall (71B), and at this time, when the external force is released, the displacement member (41) falls back into the centering destination (B); 3. The mechanical pencil according to claim 2, wherein any one of the following means can be adopted.

7. The displacement member (41) has, in the positioning groove (71), a center-return state in which the displacement member (41) is positioned at the center-return destination (A) of the positioning groove (71) under the influence of the biasing force of the reset member (3); a centering state in which the displacement member (41) is restricted by the control member (2) and overcomes the biasing force of the reset member (3) to remain stably positioned at the centering point (B) in the positioning groove (71); 2. The mechanical pencil according to claim 1, wherein the two have a stable positional relationship.

8. The displacement member (41) has at least the following means for moving left or right in the positioning groove (71): a first solution in which the displacement member (41) is provided with a movable groove, and a sliding bead is provided between the movable groove and the positioning groove (71), and the sliding bead directly contacts the positioning groove (71) instead of the displacement member (41); and a second solution in which the displacement member (41) is further provided with a displacement locking protrusion (411) and a movable groove or a rotating boss (412), and a sliding bead is further provided between the movable groove and the positioning groove (71), and a rotating member (82) is further provided on the rotating boss (412), and one end of the rotating member (82) is covered by the rotating boss (412), and the rotating member (82) is rotatable relative to the rotating boss (412), and a displacement portion (821) is provided on the other end of the rotating member (82), and the displacement portion (821), sliding bead or displacement locking protrusion (411) directly contacts the positioning groove (71) instead of the displacement member (41). a third solution in which the displacement member (41) is further provided with a displacement locking protrusion (411) and a movable groove or a rotation boss (412), a sliding bead is further provided between the movable groove and the positioning groove (71), a rotation member (82) is further provided on the rotation boss (412), one end of the rotation member (82) is covered by the rotation boss (412), the rotation member (82) is rotatable relative to the rotation boss (412), and the other end of the rotation member (82) is provided with a displacement portion (821), the displacement portion (821), the sliding bead or displacement locking protrusion (411) directly contacts the positioning groove (71) instead of the displacement member (41), and the displacement member (41) itself has a certain left-right deformation bending ability and can be bent within a certain width, so that when the displacement member (41) moves into the positioning groove (71), it can move left and / or right; and a fourth solution in which the displacement member (41) is further provided with a displacement locking protrusion (411) and a sliding bead groove or a rotating boss (412), a sliding bead is further provided between the sliding bead groove and the positioning groove (71), a rotating member (82) is further provided on the rotating boss (412), one end of the rotating member (82) is covered by the rotating boss (412), the rotating member (82) is rotatable relative to the rotating boss (412), a displacement portion (821) is provided on the other end of the rotating member (82), the displacement portion (821), the sliding bead or the displacement locking protrusion (411) directly contacts the positioning groove (71) instead of the displacement member (41), and when leftward and rightward movement is required, the adjustment member (4) moves leftward and / or rightward; a fifth solution in which the displacement member (41) is an independent member independent of the adjustment member (4), the displacement member (41) is further provided with a displacement locking protrusion (411), a movable groove or a rotation boss (412), a sliding bead is further provided between the movable groove and the positioning groove (71), the rotation boss (412) is further provided with a rotation member (82), one end of the rotation member (82) is covered by the rotation boss (412) and the rotation member (82) is rotatable relative to the rotation boss (412), the other end of the rotation member (82) is provided with a displacement portion (821), the displacement portion (821), the sliding bead or displacement locking protrusion (411) is in direct contact with the positioning groove (71) instead of the displacement member (41), and the displacement member (41) and the adjustment member (4) are engaged by magnetic attraction, engagement, adhesive and / or screwing; a sixth solution in which the displacement member (41) is further provided with a rotation boss (412), the rotation boss (412) is further provided with a rotation member (82), one end of the rotation member (82) is attached to the rotation boss (412), so that the rotation member (82) can rotate relative to the rotation boss (412), and the other end of the rotation member (82) is provided with a displacement part (821), which directly contacts the positioning groove (71) instead of the displacement member (41); a seventh solution in which a rotation through hole (41F) is further provided in the displacement member (41), a rotation member (82) rotatable relative to the rotation through hole (41F) is further provided in the rotation through hole (41F), a displacement portion (821) is provided at the other end of the rotation member (82), and the displacement portion (821) directly contacts the positioning groove (71) instead of the displacement member (41); An eighth solution in which the displacement member (41) can satisfy the requirements for left and right movement within the positioning groove (71); 7. The mechanical pencil according to claim 2, claim 3 or claim 6, characterized in that it comprises any one of the solving means of the above.

9. An auxiliary reset member (31) is provided between the control member (2) and the adjustment member (4), or an auxiliary reset member (31) is provided between the control member (2) and the outer rod (1); The structure that impacts the tool body (5) is provided with an adjustment hole (E1), and an adjustable base (E) is provided in the adjustment hole (E1); A plurality of layers having height differences are provided by being shifted in position within the positioning groove (71), An attachment buffer groove (7D) and / or a centering error groove (7F) are provided in the positioning groove (71), When the positioning groove (71) is provided in the outer rod (1), the outer rod (1) is further provided with a centering-back position limiting wall (712), An extension rod (23) may be further provided at the lower end of the control member (2), 2. The mechanical pencil according to claim 1, wherein the displacement member (41) has an inverted hook shape as a whole when not substituted with a sliding bead or a rotating member (82).

10. When the first core returning means is adopted, the control member (2) is further provided with a control switching wall (212), and a core returning passage (214) is further provided between the position limiting boss (211) and the switching long wall (71B) and / or a core returning passage (214) is further provided between the position limiting boss (211) and the control switching wall (212); The mechanical pencil according to claim 2, characterized in that, when a second lead return means is employed, a lead return passage (214) is further provided between the control member (2) and the long transition wall (71B).

11. In the seventh solution, the adjustment member (4) is provided with a rotation stabilizing boss (45), the displacement member (41) is provided with a rotation collision boss (413) for colliding with the rotation member (82) to adjust it, and / or the positioning member (7) is provided with a collision boss for colliding with the rotation member (82) to adjust it, the rotation member (82) is further provided with a rotation auxiliary base (822) and / or a rotation mounting notch (823), and the centering boss (713), the positioning member (7), the displacement member (41), the outer rod (1), the rotation member (82) and / or the rotation resistance boss (413) are further provided with a deformation notch (713K).

12. The mechanical pencil according to claim 8 or 11, characterized in that the displacement member (41), the rotation boss (412), the rotation through hole (41F) and / or the rotation member (82) may be provided with a rotation fastener (4121).

13. The outer diameter of the touch ring (62) is larger than the outer diameter of the outer rod (1), The touch ring (62) has a touch slope (621) at the bottom. An auxiliary reset member (31) is provided between the control member (2) and the positioning member (7), The mechanical pencil according to claim 4, characterized in that when the positioning groove (71) is provided in the positioning member (7), the positioning groove (71) is provided with a lead return position limiting wall (712), or the inner wall of the outer rod has a function equivalent to the lead return position limiting wall (712).

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