Writing instrument
By dividing the pen body into two parts and using a magnetic structure and a sliding limit structure to realize the core-out and core-in states conversion of the gel pen, the problem of complex structure and easy damage of existing gel pens is solved, and fast, stable and low-cost core state switching is achieved.
Patent Information
- Application Number
- CN202422652972.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-10-31
AI Technical Summary
The core ejection method of the existing gel pen is complex in structure, has many parts, unstable in performance, and is easy to be damaged.
The pen holder is divided into two parts, and a magnetic structure and a sliding limit structure are used to enable the two parts of the pen holder to move relative to each other, thereby realizing the conversion of the lead-out and lead-in states, simplifying the structure and reducing costs.
It realizes the rapid and stable conversion of the refill status, has a simple structure, low cost and is not easy to damage, and has a silent effect and a grip correction function.
Smart Images
Figure CN223370462U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of stationery products, and in particular to a writing tool. Background Art
[0002] In the prior art, gel pens mostly use a push or rotate method to eject the ink, requiring the user to first press or rotate the top of the pen barrel before the ink is ejected. This type of gel pens has problems such as complex structure, many parts, unstable performance, and easy damage.
[0003] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute prior art known to ordinary technicians in the field. Summary of the Invention
[0004] The purpose of the present disclosure is to overcome the deficiencies of the above-mentioned prior art and to provide a writing tool that can quickly realize the transition between the lead-out state and the lead-in state, and has a simple structure and low cost.
[0005] According to one aspect of the present disclosure, there is provided a writing instrument having:
[0006] A pen holder, the pen holder comprising a first pen body and a second pen body, the second pen body having a core-exiting end;
[0007] a pen core located in the pen barrel, the pen core having a connected pen tube and a writing head, the pen tube being mounted on the first pen body, and the writing head being located in the core outlet end;
[0008] A magnetic attraction structure comprising at least one first magnet and at least two second magnets, wherein the at least one first magnet is disposed on one of the first pen body and the second pen body along the axial direction of the pen shaft, and the at least two second magnets are sequentially disposed on the other of the first pen body and the second pen body along the axial direction of the pen shaft, and the polarity of the first magnet and the second magnet are opposite;
[0009] a sliding limiting structure having a movable part and a fixed part that cooperate with each other, wherein the movable part is provided on one of the first pen body and the second pen body, and the fixed part is provided on the other of the first pen body and the second pen body;
[0010] When the pen core is in the unloading state, the movable part is located at the first end of the fixed part, and is attracted by at least one first magnet and at least one second magnet; when the pen core is in the retracting state, the movable part is located at the second end of the fixed part, and is attracted by at least one first magnet and at least one second magnet.
[0011] In one embodiment of the present disclosure, the fixed member is a sliding slot, and the movable member is a sliding block;
[0012] The width of the sliding block along the circumferential direction of the pen core is adapted to the width of the sliding groove along the circumferential direction of the pen core, and the sliding block is embedded in the sliding groove and can slide along the sliding groove;
[0013] When the pen core is in the unloading state, the sliding block is located at the first end of the sliding groove, and at least one first magnet and at least one second magnet are attracted; when the pen core is in the retracting state, the sliding block is located at the second end of the sliding groove, and at least one first magnet and at least one second magnet are attracted.
[0014] In one embodiment of the present disclosure, the movable member includes a sliding block and a limiting block, and the fixed member includes a sliding slot and a limiting groove;
[0015] The width of the sliding block along the circumferential direction of the pen core is adapted to the width of the sliding groove along the circumferential direction of the pen core, the sliding block is embedded in the sliding groove and can slide along the sliding groove, and the sliding groove is open at one end along the sliding direction of the sliding block; the limiting block is arranged in the limiting groove and can move in the limiting groove;
[0016] When the pen core is in the unloading state, the limit block is located at the first end of the limiting groove, and at least one first magnet and at least one second magnet are attracted; when the pen core is in the retracting state, the limit block is located at the second end of the limiting groove, and at least one first magnet and at least one second magnet are attracted.
[0017] In one embodiment of the present disclosure, the number of the first magnets is equal to the number of the second magnets, or the difference between the number of the second magnets and the number of the first magnets is 1.
[0018] In one embodiment of the present disclosure, the number of the first magnets is two, and the number of the second magnets is two;
[0019] The two first magnets are arranged in sequence along the axial direction of the pen core, and the two second magnets are arranged in sequence along the axial direction of the pen core.
[0020] In one embodiment of the present disclosure, the first magnet is a cylindrical structure, and the structure of the second magnet is the same as that of the first magnet.
[0021] In one embodiment of the present disclosure, the shear modulus of the pen barrel is not less than 0.8 GPa, and the elastic modulus is not greater than 2.4 GPa.
[0022] In one embodiment of the present disclosure, the pen holder is made of plastic.
[0023] In one embodiment of the present disclosure, the first pen body has a first mounting platform on a side close to the second pen body; the pen tube of the pen core is mounted on the first mounting platform;
[0024] The first magnet or the second magnet is disposed on the first mounting platform.
[0025] In one embodiment of the present disclosure, a mounting groove is provided on the first mounting platform, and the size of the mounting groove is adapted to the external size of the pen tube; the pen tube is clamped in the mounting groove.
[0026] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] The accompanying drawings are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification, are used to explain the principles of the present disclosure. Obviously, the drawings described below are only some embodiments of the present disclosure, and those skilled in the art can derive other drawings based on these drawings without inventive effort.
[0028] Figure 1 This is a schematic diagram of the disassembled structure of a writing tool in one embodiment of the present disclosure.
[0029] Figure 2 This is a schematic structural diagram of a writing tool in an unleaded state in one embodiment of the present invention.
[0030] Figure 3 This is a schematic structural diagram of a writing tool in an unleaded state in one embodiment of the present invention.
[0031] Figure 4 This is a schematic structural diagram of a writing tool in a retracted state in one embodiment of the present invention.
[0032] Figure 5 This is a schematic structural diagram of a writing tool in a retracted state in one embodiment of the present invention.
[0033] Figure 6 This is a schematic structural diagram of a writing tool in an unleaded state in one embodiment of the present invention.
[0034] Figure 7 This is a schematic structural diagram of a writing tool in a retracted state in one embodiment of the present invention.
[0035] Figure 8This is a schematic structural diagram of a writing tool in an unleaded state in one embodiment of the present invention.
[0036] Description of reference numerals:
[0037] 1. First pen body; 11. First mounting platform; 12. First shell; 13. Mounting groove; 2. Second pen body; 21. Core outlet end; 22. Second shell; 23. Second mounting platform; 24. Third mounting platform; 3. First magnet; 4. Second magnet; 5. Pen core; 51. Pen barrel; 52. Writing tip; 6. Movable part; 61. Sliding block; 62. Limiting block; 7. Fixed part; 71. Sliding slot; 72. Limiting groove; 8. First step; 9. Second step; 10. Third step. DETAILED DESCRIPTION
[0038] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. Like reference numerals in the figures represent identical or similar structures, and thus their detailed descriptions will be omitted. Furthermore, the figures are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale.
[0039] Although relative terms such as "upper" and "lower" are used in this specification to describe the relationship of one illustrated component to another, these terms are used herein for convenience only, such as in accordance with the orientation of the illustrations in the accompanying drawings. It will be understood that if the illustrated device were flipped upside down, the component described as "upper" would become the component "lower." When a structure is referred to as "on" another structure, this may mean that the structure is integrally formed with the other structure, that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure via the other structure.
[0040] The terms "a", "an", "the", "said" and "at least one" are used to indicate the presence of one or more elements / components / etc.; the terms "including" and "having" are used to express open-ended inclusion and mean that additional elements / components / etc. may be present in addition to the listed elements / components / etc.; the terms "first", "second", etc. are used only as labels and are not intended to limit the quantity or order of their objects.
[0041] In this application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium.
[0042] In the prior art, gel pens mostly use a push or rotate method to eject the ink, requiring the user to first press or rotate the top of the pen barrel before the ink is ejected. This type of gel pens has problems such as complex structure, many parts, unstable performance, and easy damage.
[0043] In order to solve one of the above problems, the present disclosure provides a writing tool, which divides the pen shaft into two parts, one part of the structure has a complete core-out end 21, and the other part of the structure is provided with a pen core 5, and then a magnetic attraction structure with multiple magnets is provided (respectively installed on the two parts of the pen shaft), and the two parts of the structure are adsorbed and fixed together, and used in conjunction with a sliding limit structure, so that the two parts of the pen shaft can achieve relative movement, thereby achieving relative movement between the core-out end 21 and the pen core 5, and then achieving the conversion of the pen core 5 into the core-out state and the core-in state, so that the pen core 5 can stay in the two positions of core-out and core-in. The structure is simple and the cost is low, the performance is stable, and it is not easy to be damaged.
[0044] Specifically:
[0045] In one embodiment of the present disclosure, see Figures 1-8 The writing tool comprises a pen holder, a pen core 5, a magnetic attraction structure and a sliding limit structure.
[0046] In one embodiment of the present disclosure, the pen holder may be a cylindrical structure, a prismatic structure, etc. In other examples, the pen holder may also be other shapes, which are not limited in the present disclosure.
[0047] In one example, see Figure 1-Figure 5 The pen holder has a first pen body 1 and a second pen body 2 that cooperate with each other, wherein the second pen body 2 has a complete core outlet end 21, and the core outlet end 21 has a core outlet opening, and the pen core 5 can pass through the core outlet opening.
[0048] In one embodiment of the present disclosure, see Figure 1 The pen refill 5 comprises a pen barrel 51 and a writing head 52 connected to one end of the pen barrel 51. The pen barrel 51 is disposed on the first pen body 1, and the writing head 52 is located within the core outlet end 21 and can pass through the core outlet opening of the core outlet end 21. In one example, the pen barrel 51 is a cylindrical structure. In other examples, the pen barrel 51 can also have other shapes, for example, the pen barrel 51 can have a prismatic structure, etc.
[0049] In one embodiment of the present disclosure, see Figure 1The pen tube 51 is disposed within the first pen body 1. In one example, the first pen body 1 includes a first housing 12 and a first mounting platform 11 disposed on the first housing 12. The first mounting platform 11 is provided with a mounting groove 13. The dimensions of the mounting groove 13 match those of the pen tube 51. Thus, the pen tube 51 can be secured by inserting it into the mounting groove 13. In this example, a notch is provided on one side of the mounting groove 13. The notch is smaller than the maximum dimension of the mounting groove 13. This notch notches not only secure the pen tube 51 but also allows the relative position of the pen tube 51 after insertion into the mounting groove 13 to be checked, thereby ensuring that the pen tube 51 can be installed in the designated position and maintaining the stability of the writing tool. Of course, in other examples, the structure of the first pen body 1 may also be other structures not shown.
[0050] In one embodiment of the present disclosure, see Figure 1 The second pen body 2 has a complete lead outlet 21. In this example, the second pen body 2 includes a second shell 22 and a complete lead outlet 21 connected to one end of the second shell 22. The lead outlet 21 has a lead outlet opening at the end away from the second shell 22. The writing head 52 of the pen refill 5 is inserted into the lead outlet 21.
[0051] In one embodiment of the present disclosure, a magnetic attraction structure includes at least one first magnet 3 and at least two second magnets 4. The first magnet 3 is disposed on the first pen body 1 or the second pen body 2, and the second magnet 4 is disposed on the second pen body 2 or the first pen body 1. The first magnet 3 and the second magnet 4 have opposite polarities. Thus, the first pen body 1 and the second pen body 2 can be relatively fixed by adsorption of the first magnet 3 and the second magnet 4, thereby ensuring the stability of the writing instrument. In the present disclosure, the first magnet 3 and the second magnet 4 are used to fix the first pen body 1 and the second pen body 2, and the first magnet 3 and the second magnet 4 are reusable, resulting in a simple structure and low cost.
[0052] In one example, the first magnet 3 is disposed on the first pen body 1, and the second magnet 4 is disposed on the second pen body 2, with multiple second magnets 4 arranged sequentially along the axial direction of the pen core 5. In this example, the first magnet 3 is disposed on the first mounting platform 11, and the second pen body 2 has a second mounting platform 23, on which the second magnet 4 is disposed. In other examples, the first magnet 3 may be disposed on the second pen body 2, and the second magnet 4 may be disposed on the first pen body 1.
[0053] In one embodiment of the present disclosure, there is at least one first magnet 3 and at least two second magnets 4. In this way, when switching between the core-out state and the core-in state, the first magnet 3 can always be attracted by the second magnet 4 to ensure the connection between the first pen body 1 and the second pen body 2. In addition, by alternately attracting the first magnet 3 and at least two second magnets 4 arranged along the axial direction of the pen core 5, the relative movement of the first pen body 1 and the second pen body 2 along the axial direction of the pen core 5 can be achieved. In this way, based on the structural characteristics that the core-out end 21 is located on the second pen body 2 and the pen core 5 is located on the first pen body 1, the relative movement of the core-out end 21 and the pen core 5 along the axial direction of the pen core 5 can be achieved, thereby realizing the core-out and core-in of the pen core 5, and the structure is simple, the parts are small, and the cost is low.
[0054] In one embodiment of the present disclosure, the difference between the number of second magnets 4 and the number of first magnets 3 in the magnetic attraction structure is 1. It can be understood that there is one more second magnet 4 than the number of first magnets 3, or the number of second magnets 4 is equal to the number of first magnets 3. This ensures that the first magnet 3 can be attracted to the second magnet 4 both when the refill 5 is in the ejected and retracted states, thereby ensuring a stable connection between the first pen body 1 and the second pen body 2.
[0055] In one example of the present disclosure, the difference between the number of the second magnets 4 and the number of the first magnets 3 in the magnetic attraction structure is 1. For example, see Figure 7 and Figure 8 The number of first magnets 3 is one, and the number of second magnets 4 is two. The two second magnets 4 are arranged sequentially along the axial direction of the pen refill 5. When the pen refill 5 is in the unloaded state, the first magnet 3 is fixedly attracted to one of the second magnets 4. When the pen refill 5 is in the reloaded state, the first magnet 3 is fixedly attracted to the other second magnet 4. By switching the attraction between the two second magnets 4 by the first magnet 3, the first pen body 1 and the second pen body 2 are stably connected regardless of their state. With a minimal number of magnets, the two states can be quickly and stably switched. The structure is simple, with few parts, and high stability. Of course, in other examples, the number of first magnets 3 can be two and the number of second magnets 4 can be three; or the number of first magnets 3 can be three and the number of second magnets 4 can be four. In other embodiments, the number of first magnets 3 and the number of second magnets 4 can be greater. This can increase the stability of the attraction between the first pen body 1 and the second pen body 2, but the cost will also be relatively increased.
[0056] In another example of the present disclosure, the number of the second magnets 4 is equal to the number of the first magnets 3. For example, see Figures 1-6The number of the first magnets 3 is two, the number of the second magnets 4 is two, the two first magnets 3 are arranged in sequence along the axial direction of the pen core 5, and the two second magnets 4 are arranged in sequence along the axial direction of the pen core 5. Figure 6 When the refill 5 is in the ejected state, the first magnet 3 away from the ejected end 21 is fixedly attracted to the second magnet 4 near the ejected end 21. Figure 5 When the refill 5 is in the retracted state, the two first magnets 3 and the two second magnets 4 are fixed in a one-to-one attraction relationship. It is understood that when the refill 5 is in the unretracted state, the first magnet 3 farther from the unretracted end 21 is correspondingly attracted to the second magnet 4 closer to the unretracted end 21, while the first magnet 3 closer to the unretracted end 21 and the second magnet 4 farther from the unretracted end 21 are left unattended. When the refill 5 is in the retracted state, the two first magnets 3 and the two second magnets 4 are fixed in a one-to-one attraction relationship. By switching the attraction between the first magnet 3 and the two second magnets 4, the first pen body 1 and the second pen body 2 are ensured to be stably connected regardless of their state. Furthermore, in this example, the use of two first magnets 3 and two second magnets 4 provides a more stable attraction and is cost-effective. Of course, in other examples, there may be multiple first magnets 3 and multiple second magnets 4. For example, there may be three first magnets 3 and three second magnets 4. For another example, there may be four first magnets 3 and four second magnets 4. In other examples, the number of the first magnet 3 and the number of the second magnet 4 may be other numbers not listed above.
[0057] It can be understood that no matter how many the first magnets 3 and the second magnets 4 are, it is necessary to ensure that the first pen body 1 and the second pen body 2 are adsorbed and fixed.
[0058] In other embodiments, the first magnet 3 is disposed on the second pen body 2 , and the second magnet 4 is disposed on the first pen body 1 .
[0059] In one embodiment of the present disclosure, the first magnet 3 and the second magnet 4 are permanent magnets. Permanent magnets have stable magnetic force, which can ensure stable adsorption of the first magnet 3 and the second magnet 4 over a long period of time and can be recycled and reused.
[0060] In one embodiment of the present disclosure, the first magnet 3 is a cylindrical structure, and the second magnet 4 is a cylindrical structure. Under this structure, when a first magnet 3 is adsorbed by one of the second magnets 4 in the reeling state, when it is converted to the reeling state, the first magnet 3 will be adsorbed by the other second magnet 4. At this time, the edge of the first magnet 3 will repel the edge of one of the second magnets 4. The mutual repulsion phenomenon under this special shape can prevent the first magnet 3 and the one of the second magnets 4 from attracting each other, preventing the reel 5 from returning to the previous state, thereby ensuring the stability of the adsorption of the writing tool in the current state. Under this structure, when there are two first magnets 3 and two second magnets 4, when the reel 5 is in the reeling state, the first magnet 3 away from the reeling end 21 and the second magnet 4 near the reeling end 21 are adsorbed and fixed, and the edge of the first magnet 3 away from the reeling end 21 and the edge of the second magnet 4 near the reeling end 21 repel each other, thereby making the adsorption between the first magnet 3 away from the reeling end 21 and the second magnet 4 near the reeling end 21 more stable. In the present disclosure, the solution of using two first magnets 3 and two second magnets 4 can further ensure the stability of adsorption and fixation between the first pen body 1 and the second pen body 2 without significantly increasing the cost.
[0061] The axial direction of the refill 5 refers to the vertical direction of the refill 5 , or the axial direction of the refill 5 .
[0062] In one embodiment of the present disclosure, a sliding limit structure is used to further limit the relative position between the first pen body 1 and the second pen body 2, so that the writing tool can further achieve stable switching between the lead-out state and the lead-in state. In this example, the sliding limit structure has a movable part 6 and a fixed part 7, the movable part 6 is arranged on one of the first pen body 1 and the second pen body 2, and the fixed part 7 is arranged on the other of the first pen body 1 and the second pen body 2; when the lead 5 is in the lead-out state, the movable part 6 is located at the first end of the fixed part 7, and the first magnet 3 and one of the second magnets 4 are attracted; when the lead 5 is in the lead-in state, the movable part 6 is located at the second end of the fixed part 7, and the first magnet 3 and the other second magnet 4 are attracted.
[0063] In one example of the present disclosure, see Figure 1The movable part 6 includes a sliding block 61 and a limiting block 62, and the fixed part 7 includes a sliding groove 71 and a limiting groove 72, wherein the sliding block 61 cooperates with the sliding groove 71 (one end of the sliding groove 71 is open), and the limiting block 62 cooperates with the limiting groove 72; in this example, the sliding block 61 is arranged on the first pen body 1, and the sliding groove 71 is arranged on the second pen body 2, and the width of the sliding block 61 along the circumferential direction of the pen core 5 is adapted to the width of the sliding groove 71 along the circumferential direction of the pen core 5, the sliding block 61 is arranged in the sliding groove 71, and can slide along the sliding groove 71, so that the sliding block 61 is just engaged in the sliding groove 71 and can slide along the sliding groove 71, thereby limiting the relative movement direction of the first pen body 1 and the second pen body 2, so that the first pen body 1 and the second pen body 2 will not separate from each other. The stop block 62 is provided on the first pen body 1, and the stop groove 72 is provided on the second pen body 2. The size of the stop block 62 is smaller than that of the stop groove 72. The stop block 62 is provided within the stop groove 72, and there is a gap between the stop block 62 and the sidewall of the stop groove 72. The stop block 62 is movable within the stop groove 72. The cooperation between the stop block 62 and the stop groove 72 prevents the first pen body 1 from falling out. In this example, when the refill 5 is ejected, the stop block 62 is located at the first end of the stop groove 72, and is attracted by the at least one first magnet 3 and the at least one second magnet 4. When the refill 5 is retracted, the stop block 62 is located at the second end of the stop groove 72, and is attracted by the at least one first magnet 3 and the at least one second magnet 4. In this example, when there are two first magnets 3, when the refill 5 is in the ejected state, the stopper 62 is located at the first end of the stopper groove 72, attracting the first magnet 3 away from the ejection end 21 and the second magnet 4 near the ejection end 21. When the refill 5 is in the retracted state, the stopper 62 is located at the second end of the stopper groove 72, attracting the two first magnets 3 and the two second magnets 4 in a one-to-one relationship. In this example, the second pen body 2 also has a third mounting platform 24, which is disposed on the ejection end 21, and the sliding groove 71 and the stopper groove 72 are disposed on the third mounting platform 24. In other examples, the sliding block 61 and the stopper 62 are disposed on the second pen body 2, while the sliding groove 71 and the stopper groove 72 are disposed on the first pen body 1. In other examples, the sliding block 61 and the stopper groove 72 may also be disposed on the first pen body 1, while the stopper 62 and the sliding groove 71 are disposed on the second pen body 2.
[0064] In another example, the movable member is a sliding block, and the fixed member is a sliding slot. In this example, the sliding block is provided on the first pen body, and the sliding slot is provided on the second pen body. The width of the sliding block along the circumference of the pen refill 5 matches the width of the sliding slot along the circumference of the pen refill 5. The sliding block is provided within the sliding slot and can slide along the sliding slot. In this way, the sliding block is precisely engaged within the sliding slot and can slide along the sliding slot, thereby limiting the relative movement direction of the first pen body 1 and the second pen body 2. The length of the sliding slot must meet the requirements of relative movement between the first pen body 1 and the second pen body 2. It can be understood that when the pen refill 5 is in the unloaded state, the sliding block is located at the first end of the sliding slot, and the first magnet 3 and one of the second magnets 4 are attracted. When the pen refill 5 is in the reeled state, the movable member 6 is located at the second end of the fixed member 7, and the first magnet 3 and the other second magnet 4 are attracted. In this example, when there are two first magnets 3, in the unwinding state of the refill 5, the sliding block is located at the first end of the sliding groove, and the first magnet 3 away from the unwinding end 21 and the second magnet 4 near the unwinding end 21 are attracted; in the rewinding state of the refill 5, the sliding block is located at the second end of the sliding groove, and the two first magnets 3 and the two second magnets 4 are attracted in a one-to-one correspondence. In the present disclosure, the sliding limit structure provided can limit the direction of relative movement of the first pen body 1 and the second pen body 2, as well as the distance of relative movement of the first pen body 1 and the second pen body 2. In this way, the stability of the writing tool in the transition between the unwinding state and the unwinding state can be ensured. In this example, the second pen body 2 also has a third mounting platform 24, which is provided on the unwinding end 21, and the sliding groove is provided on the third mounting platform 24. In other examples, the sliding block is provided on the second pen body 2, and the sliding groove 71 is provided on the first pen body 1.
[0065] In one embodiment of the present disclosure, the shear modulus of the pen holder is no less than 0.8 GPa, and the elastic modulus is no greater than 2.4 GPa. In one example, the pen holder can be made of plastic, i.e., the first pen body 1 and the second pen body 2 are made of plastic. In other examples, the pen holder can be made of other materials that meet the requirements, not shown.
[0066] In one embodiment of the present disclosure, the writing head 52 has a first step 8 and the core end 21 has a second step 9 inside. Figure 6 When the refill 5 is out of the cartridge, the first step 8 is close to the second step 9 and fits in with the second step 9. Figure 5 , when the pen core 5 is in the retracted state, the first step 8 is away from the second step 9. In this example, see Figure 4The first pen body 1 has a third step 10 at the end away from the lead-out end 21. The third step 10 is located on the movement path of the second pen body 2. When the lead 5 is in the lead-out state, the end of the second pen body 2 is close to and in contact with the third step 10. When the lead 5 is in the lead-in state, the end of the second pen body 2 is away from the third step 10. In the present disclosure, the provision of the first step 8, the second step 9, and the third step 10 can further limit the relative position of the lead 5 and the second pen body 2 in the lead-out state, thereby further ensuring the stability of the lead 5 in the lead-out state.
[0067] The writing tool disclosed herein can be switched between the refill-out state and the refill-in state simply by sliding the second pen body 2 during use. In other words, the refill 5 can be switched between the refill-out state and the refill-in state by sliding the first pen body 1 and the second pen body 2 relative to each other during use.
[0068] When replacing the refill 5, use force to slightly tilt the side of the first pen body 1 close to the refill outlet end 21, so that the limit block 62 disengages from the limit groove 72, and then slide the second pen body 2 out to insert the refill 5. The first pen body 1 and the second pen body 2 can then be detached to replace the refill 5. After replacement, first put the writing head 52 of the refill 5 into the refill outlet end 21, and then snap the first pen body 1 and the second pen body 2 together.
[0069] The present invention utilizes a sliding mechanism to eject the ink cartridge, utilizing the principle of magnetic attraction. This differs from the conventional gel pen ejection mechanism. The present ejection mechanism is simple and stable, occupies minimal space, and is silent. The contralateral sliding ejection mechanism conforms to the pen-holding posture, resulting in more efficient ejection and a certain degree of grip correction.
[0070] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the appended claims.
Claims
1. A writing tool, characterized in that: have: A pen holder, the pen holder comprising a first pen body and a second pen body, the second pen body having a core-exiting end; a pen core located in the pen barrel, the pen core having a connected pen tube and a writing head, the pen tube being mounted on the first pen body, and the writing head being located in the core outlet end; A magnetic attraction structure comprising at least one first magnet and at least two second magnets, wherein the at least one first magnet is disposed on one of the first pen body and the second pen body along the axial direction of the pen shaft, and the at least two second magnets are sequentially disposed on the other of the first pen body and the second pen body along the axial direction of the pen shaft, and the polarity of the first magnet and the second magnet are opposite; a sliding limiting structure having a movable part and a fixed part that cooperate with each other, wherein the movable part is provided on one of the first pen body and the second pen body, and the fixed part is provided on the other of the first pen body and the second pen body; When the refill is ejected, the movable member is located at the first end of the fixed member, and is attracted by at least one of the first magnets and at least one of the second magnets; When the pen core is in the retracted state, the movable part is located at the second end of the fixed part, and is attracted by at least one of the first magnets and at least one of the second magnets.
2. The writing tool according to claim 1, wherein The movable part includes a sliding block and a limiting block, and the fixed part includes a sliding groove and a limiting groove; The width of the sliding block along the circumferential direction of the pen core is adapted to the width of the sliding groove along the circumferential direction of the pen core, the sliding block is embedded in the sliding groove and can slide along the sliding groove, and the sliding groove is open at one end along the sliding direction of the sliding block; the limiting block is arranged in the limiting groove and can move in the limiting groove; When the refill is unloaded, the limiting block is located at the first end of the limiting groove, and at least one of the first magnets and at least one of the second magnets are attracted thereto; When the pen core is in the retracted state, the limiting block is located at the second end of the limiting groove, and at least one of the first magnets and at least one of the second magnets are attracted thereto.
3. The writing tool according to claim 1, wherein The fixed part is a sliding groove, and the movable part is a sliding block; The width of the sliding block along the circumferential direction of the pen core is adapted to the width of the sliding groove along the circumferential direction of the pen core, and the sliding block is embedded in the sliding groove and can slide along the sliding groove; When the refill is ejected, the sliding block is located at the first end of the sliding slot, and is attracted by at least one of the first magnets and at least one of the second magnets; When the pen core is in the retracted state, the sliding block is located at the second end of the sliding groove, and is attracted by at least one of the first magnets and at least one of the second magnets.
4. The writing tool according to claim 1, wherein The number of the first magnets is equal to the number of the second magnets, or the difference between the number of the second magnets and the number of the first magnets is 1.
5. The writing tool according to claim 4, characterized in that The number of the first magnets is two, and the number of the second magnets is two; The two first magnets are arranged in sequence along the axial direction of the pen core, and the two second magnets are arranged in sequence along the axial direction of the pen core.
6. The writing tool according to any one of claims 1 to 5, characterized in that: The first magnet is a cylindrical structure, and the structure of the second magnet is the same as that of the first magnet.
7. The writing tool according to claim 1, wherein The shear modulus of the pen holder is not less than 0.8 GPa, and the elastic modulus is not greater than 2.4 GPa.
8. The writing instrument according to claim 7, characterized in that The material of the pen holder is plastic.
9. The writing tool according to claim 1, wherein The first pen body has a first mounting platform on a side close to the second pen body; the pen tube of the pen core is mounted on the first mounting platform; The first magnet or the second magnet is disposed on the first mounting platform.
10. The writing instrument according to claim 9, characterized in that The first mounting platform is provided with a mounting groove, the size of which is adapted to the external size of the pen tube; the pen tube is clipped into the mounting groove.