Slim pen with side push core

Abstract

The utility model relates to a pen, a side push core-receiving exquisite pen, including telescopic writing sleeve rod, core, spring and side pusher. The side pusher can be detachably installed in the lateral wall of writing sleeve rod, and can slide up and down relative to the writing sleeve rod. The side pusher is equipped with a push part. The writing sleeve rod includes the lower sleeve rod and upper sleeve rod that mutually sleeve. The writing sleeve rod is equipped with the positioning assembly, and the positioning assembly includes the execution part and positioning part that are respectively arranged in the upper sleeve rod and lower sleeve rod. The positioning part has the elastic deformation ability. The positioning part and execution part cooperate in the axial direction of side pusher. The spring is arranged between the core and lower sleeve rod and / or arranged between the lower sleeve rod and upper sleeve rod. The push part and execution part do not affect the sliding of the other when the writing sleeve rod telescopes.

Description

Technical Field

[0001] This utility model relates to a pen, and more particularly to a delicate pen. Background Technology

[0002] With the development of technology, pen refill specifications have undergone many iterations, and now a universal refill standard has been established in China. While this universal refill meets the needs of various brands, its length is approximately 110mm. However, many pens, except for those with caps, have bodies that require an operating mechanism, resulting in a length generally exceeding 150mm. With the refill-to-pen-body ratio being 70%, the pen body has an unnecessary length, affecting portability. Previously, when technicians couldn't overcome this limitation, consumers had few other options.

[0003] So how can we ensure that the pen is portable for users, stable during use, and that the length of the pen body is almost the same as the length of the refill? At the same time, the overall operation logic should be simple, and ideally, the number of parts should not be too many to facilitate assembly and production. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that existing pens are too long and inconvenient to operate, and to provide a delicate pen with a side-push retractable core.

[0005] To achieve the above-mentioned objectives, the present invention adopts the following technical solution: A side-push retractable pen includes a retractable writing sleeve, a pen refill, a spring, and a side-push component.

[0006] The side pusher is detachably mounted on the side wall of the writing sleeve and can slide up and down relative to the writing sleeve. The side pusher is provided with a pushing part.

[0007] The writing sleeve includes a lower sleeve and an upper sleeve that are interlocked.

[0008] The writing sleeve is equipped with a positioning component, which includes an actuating part and a positioning part respectively located on the upper sleeve and the lower sleeve. The positioning part has elastic deformation capability.

[0009] The positioning part and the execution part cooperate with the side pusher in the axial direction.

[0010] The spring is located between the pen refill and the lower sleeve and / or between the lower sleeve and the upper sleeve.

[0011] The pusher and actuator will not affect each other's sliding when the writing sleeve extends or retracts.

[0012] The writing sleeve is provided with a side-push stopping end and a side-push trigger end. The positioning part is specifically located between the side-push stopping end and the side-push trigger end. The actuator, from the side-push trigger end to the side-push stop end, is a unidirectional channel influenced by the positioning unit.

[0013] When the actuator is located at the side-push stop end of the positioning part, it is restricted by the positioning part and stops. At this time, the pen lead is partially exposed on the writing sleeve, which is the lead-out state.

[0014] By pushing the positioning part to shift, the positioning part is released from its restriction on the execution part. Then, the execution part is affected by the spring, and the upper sleeve and lower sleeve separate, thereby lengthening the writing sleeve and retracting the pen refill to the refilled state.

[0015] A side-push retractable pen includes a retractable writing sleeve, a pen refill, a spring, and a side-push component.

[0016] The side pusher is detachably mounted on the side wall of the writing sleeve and can slide up and down relative to the writing sleeve. The side pusher is provided with a pushing part.

[0017] The writing sleeve includes a lower sleeve and an upper sleeve that are interlocked.

[0018] The writing sleeve is equipped with a positioning component, which includes an actuating part and a positioning part respectively disposed on the upper sleeve and the lower sleeve. The actuating part and / or the positioning part has elastic deformation capability.

[0019] The positioning part and the execution part cooperate with the side pusher in the axial direction.

[0020] The spring is located between the pen refill and the lower sleeve and / or between the lower sleeve and the upper sleeve.

[0021] The writing sleeve is equipped with a side-push stop end and a side-push trigger end.

[0022] The positioning part is specifically located between the side push stopping end and the side push trigger end.

[0023] The actuator, from the side-push trigger end to the side-push stop end, is a unidirectional channel influenced by the positioning unit.

[0024] When the actuator is located at the side-push stop end of the positioning part, it is restricted by the positioning part and stops. At this time, the pen lead is partially exposed on the writing sleeve, which is the lead-out state.

[0025] By pushing the actuator to move and free it from the restriction of the positioning part, the actuator can be affected by the spring, causing the upper and lower sleeves to separate, thereby lengthening the writing sleeve and retracting the pen refill to the retracted state.

[0026] The writing sleeve and the side pusher are also provided with a core ejection anti-strap assembly or a side pusher elastic component.

[0027] The core-exit anti-slip assembly includes an anti-slip mating part and an anti-slip limiting part: The anti-slip mating part is provided on the side push member, and the anti-slip limiting part is provided on the writing sleeve: The anti-tape fitting part and the anti-tape limiting part include at least three methods to ensure that the side pusher is not affected by the extension and retraction of the writing sleeve during the core ejection process, thereby avoiding unnecessary displacement and ensuring a smooth core ejection process: 1. The side push member and / or writing sleeve are provided with an elastic core ejector. The anti-strap mating part can move inward and outward within a certain range. The elastic core ejector part ensures that the side push member always moves outward away from the writing sleeve, and the distance between the two reaches its maximum under the condition of no external force interference. When the anti-strap mating part moves outward to its maximum extent, it is parallel to the anti-strap limiting part. At this time, the anti-strap mating part is restricted by the anti-strap limiting part, and the side push member cannot move upward or downward.

[0028] 2. The anti-strap mating part can move inward and outward within a certain range. Utilizing the elastic deformation force of the actuator and / or positioning part, the side pusher is always pushed outward away from the writing sleeve, reaching its maximum distance when there is no external interference. When the anti-strap mating part moves outward to its maximum extent, it is parallel to the anti-strap limiting part. At this time, the anti-strap mating part is restricted by the anti-strap limiting part, and the side pusher cannot move upward or downward.

[0029] 3. The movement of the belt mating part is restricted, and it can only slide up and down. In this case, the belt mating part is always in a parallel position with the belt limiting part. At this time, when the belt mating part is located at the side push stop end, it is restricted by the belt limiting part, and the side push part cannot move up or down.

[0030] Fourth, the pushing part (62) has an elastic deformation force that moves to the left and right. When static, the pushing part (62) is closer to the positioning part (21) than the execution part (11). When the execution part (11) passes through the positioning part (21), the pushing part (62) cannot pass through the positioning part (21).

[0031] When switching from core receiving to core delivery, the side pusher is located at the side pusher stop end and is restricted by the anti-belt limiting part through the anti-belt mating part. When the user moves the lower sleeve and / or the upper sleeve up, the side pusher is not affected.

[0032] As a preferred embodiment of this invention: to achieve core retraction, from core ejection to core retraction, a side pusher is used to push upwards, downwards, leftwards, or rightwards. This indirectly drives the pushing part. The pushing part causes the actuator or positioning part to shift, thereby freeing the actuator from the constraint of the positioning part. The spring force then separates the upper and lower sleeve rods, returning the core retraction state.

[0033] As a preferred embodiment of this utility model: in order to prevent the writing sleeve from completely separating and to ensure the integrity of the whole, the writing sleeve is provided with an anti-detachment component. The anti-detachment component includes an anti-detachment part and a detachment prevention part. When the anti-detachment part is provided on the upper sleeve, the detachment prevention part is provided on the lower sleeve, and vice versa.

[0034] As a preferred embodiment of this invention: to allow the side push member to be indirectly affected by the spring, it achieves the effect of returning to the side push stop end without the need for additional structures, and the anti-dislodgement part on the writing sleeve can be omitted. The writing sleeve is provided with an anti-dislodgement part, and the side push member is provided with an anti-dislodgement part. Through the influence of the spring on the anti-dislodgement part, the anti-dislodgement part restricts the anti-dislodgement part from detaching from the writing sleeve, while simultaneously allowing the anti-dislodgement part to shift, thus causing the side push member to return to the side push stop end.

[0035] As a preferred embodiment of this invention, to prevent the side pusher from detaching after being inserted into the writing sleeve, a limiting part is provided on the side pusher. The limiting part can also be used as an anti-detachment part of the side pusher by adjusting its size.

[0036] As a preferred embodiment of this invention: to facilitate better interaction between the actuator and the positioning and / or pushing parts, the actuator may also be provided with a mating part. The mating part interacts with the positioning and / or pushing parts in place of the actuator.

[0037] As a preferred embodiment of this utility model, the writing sleeve part or the whole adopts a teardrop shape, a teardrop-like shape or a triangle shape.

[0038] As a preferred embodiment of this utility model, an end cap may be detachably provided on the writing sleeve for convenient replacement of the core.

[0039] As a preferred embodiment of this utility model: In order to prevent the side pusher (6) from being affected by the extension and retraction of the upper and lower sleeve rods, the positioning part (21) is inclined on the writing sleeve rod. When the execution part (11) passes through the positioning part (21), the pushing part (62) is affected by the positioning part (21). Without external force directly interfering with the pusher, and only relying on the extension and retraction of the writing sleeve rod, it cannot pass through the positioning part (21) and remains at the side push stopping end (S). This ensures that the pushing part will not move randomly during the core ejection process, avoids affecting the normal core ejection, and also provides a guarantee for the next step of normal core retraction.

[0040] As a preferred embodiment of this invention: when the pen is retracted by pushing upwards, the side-push stopping end is located near the pen tip. At this time, the writing sleeve has an anti-dislodgement part, and the side-push component has an anti-dislodgement part. When the pen is retracted, the anti-dislodgement part moves downwards, and the anti-dislodgement part causes the side-push component to also move downwards to the side-push stopping end.

[0041] As a preferred embodiment of this invention, the distance between the positioning part or the execution part and the writing end of the pen refill is preferably 3-80mm.

[0042] As a preferred embodiment of this utility model: the core ejection is an axial lifting core ejection, the distance between the lowest end of the upper sleeve rod that can be directly contacted and the writing end of the pen refill is 3-80mm, and the lower sleeve rod can be directly contacted. By clamping one end with the web of one hand through the directly contactable parts of the lower sleeve rod and the upper sleeve rod, and then moving the other end with the fingers, the upper sleeve rod and the lower sleeve rod are moved closer together, thereby causing the actuator to move up to the positioning part.

[0043] As a further preferred embodiment of this invention: While ensuring complete lead extension and retraction functions and without considering other additional functions, the length of the lead in the lead-out state can be greater than the necessary usable length of the writing sleeve. The necessary usable length of the writing sleeve is considered only according to the necessary dimensions; any unnecessary extensions of the writing sleeve are not included in the calculation. For example, the wall thickness of a normal plastic pen shell is about 1mm, while the normal lead extension length is about 4.2mm. Assuming the lead length is Xmm, then in the lead-out state, the distance from the lead extension opening to the tail of the writing sleeve is (X-4.2+1=X-3)mm, which is less than the lead length Xmm. Intentionally extending the tail of the pen shell is not included in the necessary usable length calculation.

[0044] When the pen refill is 30mm long and the upper sleeve is made of metal with a wall thickness of 0.2mm, then 30 / (30-4.2+0.2) = 1.1538. Considering practical use, the minimum value is usually 0.85. The optimal value is 1, that is, the pen refill length is equal to the necessary length of the writing sleeve. At this point, the requirements for manufacturing difficulty are also lower, and the axial space itself is much smaller than that of other types of pens.

[0045] Therefore, the maximum value of the ratio of the total length L2 of the pen refill to the total length L0 of the writing sleeve is approximately 1.15.

[0046] As a further preferred embodiment of the present invention, the side-pushing elastic element is a spring, an elastic structure, an elastic material, silicone, or a sheet.

[0047] Compared with existing technologies, the above technical solution has the following beneficial effects: First, the design of the side push component is simplified. Previously, the side push component required a separate side push elastic element; otherwise, resetting the side push component became problematic. If the side push component could not reset to the side push stop end S after each use, and the lead ejection process could not be affected by the extension / retraction of the writing sleeve, it would be best to keep it at the side push stop end S throughout the entire lead ejection process. This would ensure successful lead ejection every time. However, if a side push elastic element must be included, its installation and cost need to be considered. How to simplify the structure, reduce costs, and accommodate various operating methods while reducing the number of parts through structural design is crucial. This invention achieves the above functions perfectly without the side push elastic element; that is, the side push component remains stationary during lead ejection and returns to the side push stop end S during lead retraction.

[0048] Second, it facilitates production and assembly, increases production output, and reduces the need for assembly labor. The structural design fully considers the actual production and assembly of the product, and most parts can be assembled by assembly line machinery, which reduces labor requirements and lowers the actual production cost.

[0049] Third, because the positioning component is located on the outer ring axis of the pen refill, the overall axial space utilization rate is extremely high, and the axial space ratio of the pen refill is very high, thus greatly reducing the overall length. For example... Figure 2 As shown: When the lead is extended, the length of the lead can be greater than the length of the writing sleeve, because the wall thickness of a normal product is about 1mm, while the lead protrudes by about 4mm. This also makes the writing sleeve very portable, solving the problem of pocket pens on the market. It achieves a balance between portability and lead capacity while maintaining the same length adjustment, maximizing both. Traditional push-button pens have the positioning component at the end of the lead, which typically requires more than 25mm of axial space. According to the relevant formulas: assuming the lead is 110mm, a traditional pen would require 110-4.2+25=130.8mm, with an axial ratio of 110 / 130.8=0.84. This invention only requires 110-4.2+1=106.8mm, with an axial ratio of 110 / 106.8=1.03. Furthermore, the overall length is 130.8-106.8=24mm shorter than the traditional one, making it more portable.

[0050] Fourth, to address the need for portability, the problem of excessive radial space causing difficulty in gripping the pen was also solved. By adopting a teardrop shape, teardrop-like shape, or triangle shape, we can place the positioning component and side pusher at the upper end of the teardrop or a corner of the triangle. This will not increase the radial dimension of the writing sleeve, make full use of the original radial space at the upper end of the teardrop or a corner of the triangle, further improve the utilization rate of the radial space, compress the internal space to the extreme, and will not affect the original pen grip and writing experience. The overall shape is also more beautiful and conducive to design.

[0051] Fifth, it offers ample DIY expansion space. A DIY module U can be added to the tail of the writing sleeve. Once the tail space is freed up, it can be used for other expansions and the addition of other modules. Examples include: exam countdown modules, fun functions such as hourglasses, decompression functions such as silicone dolls, decorative IP characters or items, or practical functions such as timers, stopwatches, and clocks. Attached Figure Description

[0052] Figure 1 This is an exploded view of Embodiment 1 of the present invention.

[0053] Figure 2 This is a schematic diagram of the assembly of the lower sleeve and the side pusher in Embodiment 1 of the present invention.

[0054] Figure 3 This is a front view and a partial enlarged view of Embodiment 1 of the present invention.

[0055] Figure 4 This is a schematic diagram of the side pusher component in Embodiment 1 of the present invention.

[0056] Figure 5 These are the front view and left sectional view of Embodiment 2 of the present invention.

[0057] Figure 6 This is a schematic diagram of the upper and lower sleeve rods in Embodiment 2 of the present invention.

[0058] Figure 7 These are the front view and left sectional view of Embodiment 3 of the present invention.

[0059] Figure 8 This is a schematic diagram of the lower sleeve rod in Embodiment 3 of the present invention.

[0060] Figure 9 This is a schematic diagram and a partial enlarged view of the upper sleeve rod in Embodiment 3 of the present invention.

[0061] Figure 10 This is a schematic diagram of the side pusher component in Embodiment 3 of the present invention.

[0062] Figure 11 This is a cross-sectional view and a partial enlarged view of the upper and lower sleeve rods and the side pusher of Embodiment 4 of the present invention.

[0063] Figure 12 This is a three-dimensional schematic diagram of the upper and lower sleeve rods and the side pusher of Embodiment 4 of the present invention.

[0064] Figure 13 This is a three-dimensional half-sectional view and a partial enlarged view of the upper sleeve rod in Embodiment 4 of the present invention.

[0065] Figure 14 This is an exploded view of Embodiment 5 of the present invention.

[0066] Figure 15 This is a cross-sectional view and a partial enlarged view of Embodiment 5 of the present invention.

[0067] Figure 16 This is a perspective view and a partial enlarged view of Embodiment 5 of the present invention.

[0068] Figure 17 This is a cross-sectional view and a partial enlarged view of Embodiment 6 of the present invention.

[0069] Figure 18 This is a three-dimensional schematic diagram of the upper and lower sleeve rods and the side pusher of Embodiment 6 of the present invention.

[0070] Figure 19 This is a three-dimensional half-sectional view and a partial enlarged view of the upper sleeve rod of Embodiment 6 of the present invention.

[0071] Figure label: 1. Lower sleeve rod. 11. Actuating part. 111. Fitting part. 12. Anti-disengagement part.

[0072] 2. Upper sleeve rod. 21. Positioning part. 22. Anti-detachment part. 23. End cap.

[0073] 4. Spring.

[0074] 5. Pen refill.

[0075] 6. Side pusher. 61. Limiting part. 611. Anti-belt mating part. 62. Pushing part. 63B. Core ejection elastic part.

[0076] 7. Lateral push elastic element.

[0077] A. Anti-slip limiter. S. Side-push stopping end. F. Side-push moving end. Detailed Implementation

[0078] The present invention will now be further described with reference to the accompanying drawings. Example 1

[0079] like Figures 1 to 4 The illustrated pen with a side-push retractable core includes a retractable writing sleeve, a core 5, a spring 4, and a side-push component 6.

[0080] The aforementioned side pusher 6 is detachably mounted on the side wall of the writing sleeve and can slide up and down relative to the writing sleeve. The aforementioned side pusher 6 is provided with a pushing part 62.

[0081] The aforementioned writing sleeve includes a lower sleeve 1 and an upper sleeve 2 that are interlocked.

[0082] The aforementioned spring 4 is located between the pen refill 5 and the lower sleeve 1.

[0083] The writing sleeve is equipped with a side-push stopping end S and a side-push moving end F.

[0084] The writing sleeve is equipped with a positioning assembly, which includes an actuating part 11 located on the upper sleeve 2 and two positioning parts 21 located on the lower sleeve 1. The positioning parts 21 have elastic deformation capability and are inclined in a V-shape, narrow at the bottom and wide at the top, located between the side-push stopping end S and the side-push moving end F.

[0085] When the pen tip is ejected, the lower sleeve 1 moves upward. The aforementioned pushing member 6 moves upward together with the positioning part 21 and the pushing part 62. As the lower sleeve 1 moves upward, the aforementioned actuating part 11 causes the positioning part 21 to deform, allowing the actuating part 11 to engage with the deformed and reset positioning part 21 by reaching the side-push movable end F. Under the restoring force of the spring 4 and the limiting action of the positioning part 21, the pen tip 5 remains partially exposed above the writing sleeve, thus completing the ejection process.

[0086] When the writing sleeve extends or retracts, the pushing part and the executing part will not affect each other's sliding. The thickness of the positioning part is sufficient to contact the pushing part and the executing part simultaneously. That is, during the sliding process, the pushing part and the executing part can both contact and interact with the positioning part. The pushing part is specifically located on the outside of the positioning part, while the executing part is specifically located on the inside of the positioning part.

[0087] Because the width of the aforementioned pushing part 62 is larger than that of the executing part 11, the deformation of the executing part 11 on the positioning part is insufficient to allow the pushing part 62 to pass through. This keeps the pushing member 6 at the side-push stopping end S, preparing for core collection. This prevents the side-push member from following the core during core ejection, thus ensuring that the side-push member remains at the side-push stopping end S during core collection. This embodiment illustrates a case where the central axes of the two positioning parts 21, the pushing part, and the executing part are at the same level and are symmetrically arranged. However, if an eccentric shaft design is used, for example, only one positioning part 21 is used, and the positioning part 21 can achieve side-push movement... When end F moves to the unidirectional limiting actuator 11 of the side push stop section S, at this time, the distance between the pushing part and the farthest end of the positioning part on the side near the positioning part is greater than the distance between the actuator and the farthest end of the positioning part on the side near the positioning part. This can also achieve a similar function. That is, when the core is ejected, when the actuator passes through the positioning part, the positioning part will limit the pushing part, thereby ensuring that the side push member is not driven. When the core is retracted, when the side push member moves, the pushing part will cause the positioning part to open. At this time, the actuator will break away from the limitation of the positioning part, thereby realizing the core retraction. Therefore, the pushing part does not necessarily have to be larger than the actuator part, but only based on the situation of this embodiment.

[0088] When retracting the pen tip, the pusher 6 is pushed down, and the positioning part 21 is deformed and shifted by the pusher 62. Since the width of the pusher 62 is larger than that of the execution part 11, the positioning part 21 is released from the restriction of the execution part 11. The execution part 11 is affected by the spring 4, which causes the lower sleeve 1 to move towards the writing end of the pen tip, so that the pen tip 5 is retracted into the writing sleeve and not exposed, thereby completing the retracting state.

[0089] The writing sleeve is provided with an anti-dislodgement part 22, and the side pusher 6 is provided with a disengagement stop part 12. Under the combined action of the anti-dislodgement part 22, the disengagement stop part 12 and the spring 4, the pusher 6 returns to the side push stop end S after losing other external forces.

[0090] For better installation, the aforementioned side pusher 6 is provided with a limiting part 61.

[0091] When the lead is extended, the ratio of the total length L2 of the lead 5 to the total length L0 of the writing sleeve is 1.02.

[0092] When the pen tip is ejected, the distance between the positioning part or the execution part and the writing end of the pen tip is preferably 20mm.

[0093] When the core is being pulled out, the side pusher (6) is pushed down, which indirectly drives the pusher (62). The pusher (62) causes the actuator (11) or the positioning part (21) to shift, so that the actuator (11) loses the restriction of the positioning part (21). The upper sleeve rod (2) and the lower sleeve rod (1) are separated by the elastic force of the spring (4), and the core is returned to the state of being pulled out.

[0094] The core ejection is an axial lifting core ejection. The distance between the lowest point of the upper sleeve rod, which can be directly contacted, and the writing end of the pen tip is 15mm. The lower sleeve rod can also be directly contacted. By gripping one end with the web of one hand and moving the other end with the fingers through the directly contactable parts of the lower and upper sleeve rods, the upper and lower sleeve rods are extended and brought closer together, thereby causing the actuator to move upward to the positioning part. Example 2

[0095] like Figures 5 to 6 The side-push retractable pen shown differs from Example 1 in that: The execution part 11 and the positioning part 21 are located in different positions. The execution part 11 is located on the upper sleeve 2, and the positioning part 21 is located on the lower sleeve 1.

[0096] The springs are positioned differently; the spring 4 mentioned above is located between the lower sleeve rod 1 and the upper sleeve rod 2.

[0097] When retracting the pen tip, the pusher 6 is pushed down, and the positioning part 21 is deformed and shifted by the pusher 62. Since the width of the pusher 62 is larger than that of the execution part 11, the positioning part 21 is released from the restriction of the execution part 11. The execution part 11 is affected by the spring 4, which causes the lower sleeve 1 to move towards the writing end of the pen tip, so that the pen tip 5 is retracted into the writing sleeve and not exposed, thereby completing the retracting state.

[0098] After losing other external forces, the positioning part 21 itself generates deformation and reset force to push the pusher 6 back to the side push-stop end S.

[0099] In order to prevent the pen from easily falling apart under external force, the writing sleeve is provided with an anti-dislodgement component, which includes an anti-dislodgement part 22 and a stop-dislodgement part 12. The upper sleeve 2 is provided with the stop-dislodgement part 12, and the lower sleeve 1 is provided with the anti-dislodgement part 22.

[0100] The writing rod part or the whole adopts a teardrop-shaped design. Example 3

[0101] like Figures 7 to 10 The illustrated pen with a side-push retractable core includes a retractable writing sleeve, a core 5, a spring 4, and a side-push component 6.

[0102] The aforementioned side pusher 6 is detachably mounted on the side wall of the writing sleeve and can slide up and down relative to the writing sleeve. The aforementioned side pusher 6 is provided with a pushing part 62.

[0103] The aforementioned writing sleeve includes a lower sleeve 1 and an upper sleeve 2 that are interlocked.

[0104] The writing sleeve is equipped with a positioning assembly, which includes a positioning part 21 on the upper sleeve 2 and an actuating part 11 on the lower sleeve 1. The actuating part 11 has elastic deformation capability.

[0105] The aforementioned positioning part 21 and the execution part 11 cooperate with the side pusher 6 in the axial direction.

[0106] The aforementioned spring 4 is located between the pen refill 5 and the lower sleeve 1.

[0107] The writing sleeve mentioned above is equipped with a side-push core-retracting end S and a side-push movable end F.

[0108] A side-pushing elastic element 7 is also provided between the upper sleeve rod 2 and the side-pushing component 6.

[0109] When the core is ejected, the lower sleeve rod 1 is lifted, and the elastic actuator 11 passes over the pusher 62 and the positioning part 21 to reach the matching position of the actuator 11 and the positioning part 21, thus completing the core ejection. The side pusher 6 is held at the side push core-retracting end S under the action of the side push elastic member 7, ready for subsequent core-retracting.

[0110] When retracting the pen tip, the upward pusher 6 overcomes the restoring force of the side pusher elastic member 7. Under the action of the pusher 62, the actuator 11 undergoes elastic deformation, disengaging from the positioning part 21. Under the action of the spring 4, the writing end of the pen tip 5 is retracted into the lower sleeve 1, thus completing the retraction. After losing the upward push force, the side pusher 6 returns to the side push retraction stopping end S under the restoring force of the side pusher elastic member 7.

[0111] When the pen is retracted by pushing upwards, the side-push stop end (S) is located near the pen tip. At this time, the writing sleeve is provided with an anti-slip part (22), and the side-push member (6) is provided with a limiting part 61. The limiting part 61 also serves as an anti-slip part (12). When the pen is retracted, the anti-slip part (22) will move downwards. At this time, the limiting part 61 causes the side-push member (6) to also move downwards to the side-push stop end (S).

[0112] The distance between the positioning part or the execution part and the writing end of the pen refill is preferably 3-80mm and / or the distance between the lowest end of the upper sleeve rod that can be directly contacted and the writing end of the pen refill is 3-80mm, and the lower sleeve rod can be directly contacted. By clamping one end with the web of one hand through the directly contactable parts of the lower sleeve rod and the upper sleeve rod, and then moving the other end with the fingers, the upper sleeve rod and the lower sleeve rod are extended and brought closer together, thereby causing the execution part to move up to the positioning part.

[0113] In order to prevent the pen from easily falling apart under external force, the upper sleeve 2 is provided with a non-detachment part 12, and the lower sleeve 1 is provided with a non-detachment part 22.

[0114] In order to better cooperate, the aforementioned execution unit 11 is provided with a cooperation unit 111.

[0115] To facilitate the replacement of the pen refill, the upper sleeve 2 is also detachably equipped with an end cap 23.

[0116] When the lead is extended, the ratio of the total length L2 of the lead 5 to the total length L0 of the writing sleeve is 1.02.

[0117] When the core is being pulled out, the pusher (6) is pushed up, which indirectly drives the pusher (62). The pusher (62) causes the actuator (11) or the positioning part (21) to shift, so that the actuator (11) loses the restriction of the positioning part (21). The spring force of the spring (4) causes the upper sleeve rod (2) and the lower sleeve rod (1) to separate and return to the core-pulling state. Example 4

[0118] like Figures 11 to 13 The illustrated pen with a side-push retractable core includes a retractable writing sleeve, a core 5, a spring 4, and a side-push component 6.

[0119] The aforementioned side pusher 6 is detachably mounted on the side wall of the writing sleeve and can slide up and down relative to the writing sleeve. The aforementioned side pusher 6 is provided with a pushing part 62.

[0120] The aforementioned writing sleeve includes a lower sleeve 1 and an upper sleeve 2 that are interlocked.

[0121] The writing sleeve is equipped with a positioning assembly, which includes a positioning part 21 on the upper sleeve 2 and an actuating part 11 on the lower sleeve 1. The actuating part 11 has elastic deformation capability.

[0122] The aforementioned positioning part 21 and the execution part 11 cooperate with the side pusher 6 in the axial direction.

[0123] The aforementioned spring 4 is located between the pen refill 5 and the lower sleeve 1.

[0124] The writing sleeve mentioned above is equipped with a side-push core-retracting end S and a side-push movable end F.

[0125] A core-exit anti-slip assembly is also provided between the writing sleeve and the side pusher 6. The core-exit anti-slip assembly includes an anti-slip mating part 611 and an anti-slip limiting part A. The anti-slip mating part 611 can move inward and outward within a certain range.

[0126] During core ejection, the lower sleeve rod 1 moves upward, and the elastic deformation force of the actuator 11 guides the pusher 62, ensuring that the side pusher 6 always moves outward away from the writing sleeve rod. Under normal circumstances, the distance between the two reaches its maximum. When the anti-tape engagement part 611 moves outward to its maximum extent and is parallel to the anti-tape limiting part A, the anti-tape engagement part 611 is restricted by the anti-tape limiting part A, preventing the side pusher 6 from moving upward or downward and thus maintaining its original position. Meanwhile, the actuator 11 passes over the pusher 62 and reaches the core ejection position that mates with the positioning part 21, completing the core ejection.

[0127] When the core is retracted, the pushing part 62 is driven by the upward pushing side pusher 6. The pushing part 62 causes the actuator 11 to disengage from the restriction of the positioning part 21. Thus, the restriction of the actuator 11 and the positioning part 21 is removed, and the upper sleeve rod 2 and the lower sleeve rod 1 are separated by the elastic force of the spring 4, returning to the core retraction state.

[0128] In order to prevent the pen from easily falling apart under external force, the upper sleeve 2 is provided with a non-detachment part 12, and the lower sleeve 1 is provided with a non-detachment part 22.

[0129] The aforementioned side pusher 6 is provided with a limiting part 61.

[0130] To provide a better user experience for core feeding and core receiving, the aforementioned execution unit 11 is also equipped with a mating part 111.

[0131] When the lead is extended, the ratio of the total length L2 of the lead 5 to the total length L0 of the writing sleeve is 1.02.

[0132] The aforementioned side pusher 6 is provided with a limiting part 61.

[0133] The distance between the positioning part or the execution part and the writing end of the pen refill is preferably 3-80mm and / or the distance between the lowest end of the upper sleeve rod that can be directly contacted and the writing end of the pen refill is 3-80mm, and the lower sleeve rod can be directly contacted. By clamping one end with the web of one hand through the directly contactable parts of the lower sleeve rod and the upper sleeve rod, and then moving the other end with the fingers, the upper sleeve rod and the lower sleeve rod are extended and brought closer together, thereby causing the execution part to move up to the positioning part. Example 5

[0134] like Figures 14 to 16 The illustrated pen with a side-push retractable core includes a retractable writing sleeve, a core 5, a spring 4, and a side-push component 6.

[0135] The aforementioned side pusher 6 is detachably mounted on the side wall of the writing sleeve and can slide up and down relative to the writing sleeve. The aforementioned side pusher 6 is provided with a pushing part 62.

[0136] The aforementioned writing sleeve includes a lower sleeve 1 and an upper sleeve 2 that are interlocked.

[0137] The writing sleeve is equipped with a positioning assembly, which includes a positioning part 21 on the upper sleeve 2 and an actuating part 11 on the lower sleeve 1. The actuating part 11 has elastic deformation capability.

[0138] The aforementioned positioning part 21 and the execution part 11 cooperate with the side pusher 6 in the axial direction.

[0139] The aforementioned spring 4 is located between the pen refill 5 and the lower sleeve 1.

[0140] The writing sleeve mentioned above is equipped with a side-push core-retracting end S and a side-push movable end F.

[0141] The pushing part (62) has an elastic deformation force that moves to the left and right. When it is static, the pushing part (62) is closer to the positioning part (21) than the execution part (11). When the execution part (11) passes through the positioning part (21), the pushing part (62) cannot pass through the positioning part (21).

[0142] A core-exiting anti-slip assembly is also provided between the writing sleeve and the side pusher 6. The core-exiting anti-slip assembly includes an anti-slip mating part 611 and an anti-slip limiting part A. The anti-slip mating part 611 is restricted in its inward and outward movement and can only slide up and down.

[0143] When the core is ejected, the lower sleeve rod 1 moves up, and the anti-belt mating part 611 is always in a mating state with the anti-belt limiting part A. At this time, the side pusher 6 is restricted by the anti-belt limiting part A, and the side pusher 6 cannot move upward and remains at the side push core retraction position S. Meanwhile, the actuator 11 passes over the pusher 62 and reaches the core ejection position that mates with the positioning part 21, thus completing the core ejection.

[0144] When the core is retracted, the pushing part 62 is driven by the upward pushing side pusher 6. The pushing part 62 causes the actuator 11 to disengage from the restriction of the positioning part 21. Thus, the restriction of the actuator 11 and the positioning part 21 is removed, and the upper sleeve rod 2 and the lower sleeve rod 1 are separated by the elastic force of the spring 4, returning to the core retraction state.

[0145] In order to prevent the pen from easily falling apart under external force, the upper sleeve 2 is provided with a non-detachment part 12, and the lower sleeve 1 is provided with a non-detachment part 22.

[0146] The aforementioned side pusher 6 is provided with a limiting part 61.

[0147] To provide a better user experience for core feeding and core receiving, the aforementioned execution unit 11 is also equipped with a mating part 111.

[0148] To facilitate the replacement of the pen refill, the upper sleeve 2 is also detachably equipped with an end cap 23.

[0149] When the lead is extended, the ratio of the total length L2 of the lead 5 to the total length L0 of the writing sleeve is 1.02.

[0150] When the core is being pulled out, the pusher (6) is pushed up, which indirectly drives the pusher (62). The pusher (62) causes the actuator (11) or the positioning part (21) to shift, so that the actuator (11) loses the restriction of the positioning part (21). The spring force of the spring (4) causes the upper sleeve rod (2) and the lower sleeve rod (1) to separate and return to the core-pulling state.

[0151] The core ejection is an axial lifting core ejection. The distance between the lowest point of the upper sleeve rod, which can be directly contacted, and the writing end of the pen tip is 15mm. The lower sleeve rod can also be directly contacted. By gripping one end with the web of one hand and moving the other end with the fingers through the directly contactable parts of the lower and upper sleeve rods, the upper and lower sleeve rods are extended and brought closer together, thereby causing the actuator to move upward to the positioning part. Example 6

[0152] like Figures 17 to 19 The illustrated pen with a side-push retractable core includes a retractable writing sleeve, a core 5, a spring 4, and a side-push component 6.

[0153] The aforementioned side pusher 6 is detachably mounted on the side wall of the writing sleeve and can slide up and down relative to the writing sleeve. The aforementioned side pusher 6 is provided with a pushing part 62.

[0154] The aforementioned writing sleeve includes a lower sleeve 1 and an upper sleeve 2 that are interlocked.

[0155] The writing sleeve is equipped with a positioning assembly, which includes a positioning part 21 on the upper sleeve 2 and an actuating part 11 on the lower sleeve 1. The actuating part 11 has elastic deformation capability.

[0156] The aforementioned positioning part 21 and the execution part 11 cooperate with the side pusher 6 in the axial direction.

[0157] The aforementioned spring 4 is located between the pen refill 5 and the lower sleeve 1.

[0158] The writing sleeve mentioned above is equipped with a side-push core-retracting end S and a side-push movable end F.

[0159] A core-exit anti-slip assembly is also provided between the writing sleeve and the side pusher 6. The core-exit anti-slip assembly includes an anti-slip mating part 611 and an anti-slip limiting part A. The side pusher 6 is provided with a core-exit elastic part 63B. The anti-slip mating part 611 can move inward and outward within a certain range.

[0160] During core ejection, the aforementioned core ejection elastic part 63B ensures that the side pusher always moves outward away from the writing sleeve, maximizing the distance between them in the absence of external interference. When the anti-tape engagement part 611 moves outward to its maximum extent, it is parallel to the anti-tape limiting part A. At this time, the anti-tape engagement part 611 is restricted by the anti-tape limiting part A, preventing the side pusher 6 from moving upward or downward, and it remains at the side push core retraction stopping end S. Lifting the lower sleeve 1 causes the actuator 11 to pass over the pusher 62 and reach the core ejection engagement position with the positioning part 21, thereby completing the core ejection.

[0161] When the core is retracted, the pushing part 62 is driven by the upward pushing side pusher 6. The pushing part 62 causes the actuator 11 to disengage from the restriction of the positioning part 21. Thus, the restriction of the actuator 11 and the positioning part 21 is removed, and the upper sleeve rod 2 and the lower sleeve rod 1 are separated by the elastic force of the spring 4, returning to the core retraction state.

[0162] In order to prevent the pen from easily falling apart under external force, the writing sleeve is provided with an anti-dislodgement part 22, and the side pusher 6 is provided with an anti-dislodgement part 12.

[0163] The aforementioned side pusher 6 is provided with a limiting part 61.

[0164] To provide a better user experience for core feeding and core receiving, the aforementioned execution unit 11 is also equipped with a mating part 111.

[0165] When the lead is extended, the ratio of the total length L2 of the lead 5 to the total length L0 of the writing sleeve is 1.02.

[0166] The distance between the positioning part or the execution part and the writing end of the pen refill is preferably 3-80mm and / or the distance between the lowest end of the upper sleeve rod that can be directly contacted and the writing end of the pen refill is 3-80mm, and the lower sleeve rod can be directly contacted. By clamping one end with the web of one hand through the directly contactable parts of the lower sleeve rod and the upper sleeve rod, and then moving the other end with the fingers, the upper sleeve rod and the lower sleeve rod are extended and brought closer together, thereby causing the execution part to move up to the positioning part.

[0167] Additional notes: 1. The inner side is closer to the central axis of the writing sleeve, while the outer side is closer to the outer surface of the writing sleeve; the upper or upper side is away from the writing end of the pen refill, while the lower and lower sides are closer to the writing end of the pen refill.

[0168] 2. The core ejection method in the above embodiments is mainly axial lifting, but it can also be achieved by keeping the lower sleeve rod stationary and pressing the upper sleeve rod to eject the core.

[0169] 3. In the above embodiment, the core is collected mainly by moving the side pusher. The pushing part 62 of the side pusher releases the restriction between the execution part and the positioning part, thereby realizing the core collection.

[0170] The above description is a preferred embodiment of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the principle of the present invention, and these should also be considered within the scope of protection of the present invention.

Claims

1. A side-push retractable pen, comprising a retractable writing sleeve, a pen refill (5), a spring (4), and a side-push component (6); characterized in that: The side pusher (6) is detachably installed on the side wall of the writing sleeve and can slide up and down relative to the writing sleeve; the side pusher (6) is provided with a pusher (62); the writing sleeve includes a lower sleeve (1) and an upper sleeve (2) that are nested together; the writing sleeve is provided with a positioning component, which includes an execution part (11) and a positioning part (21) respectively located on the upper sleeve (2) and the lower sleeve (1); the positioning part (21) has elastic deformation capability; the spring (4) is located between the pen refill (5) and the lower sleeve (1) and / or between the lower sleeve (1) and the upper sleeve (2); the writing sleeve is provided with a side push stop end (S); when the execution part (11) is located near the side push stop end (S) of the positioning part (21), it is restricted and stopped by the positioning part (21). At this time, the pen refill (5) is partially exposed on the writing sleeve, which is the pen refill state; By pushing the positioning part (21) to shift by the pushing part (62), the positioning part (21) releases the restriction on the execution part (11), so that the execution part (11) is affected by the spring (4), the upper sleeve (2) and the lower sleeve (1) separate, thereby making the writing sleeve longer and the pen refill (5) retracted into the writing sleeve, which is the refill state.

2. A side-push retractable pen, comprising a retractable writing sleeve, a pen refill (5), a spring (4), and a side-push component (6); characterized in that: The side pusher (6) is detachably installed on the side wall of the writing sleeve and can slide up and down relative to the writing sleeve; the side pusher (6) is provided with a pusher (62); the writing sleeve includes a lower sleeve (1) and an upper sleeve (2) that are nested together; the writing sleeve is provided with a positioning component, which includes an execution part (11) and a positioning part (21) respectively located on the upper sleeve (2) and the lower sleeve (1); the execution part (11) and / or the positioning part (21) have elastic deformation capability; the spring (4) is located between the pen refill (5) and the lower sleeve (1) and / or between the lower sleeve (1) and the upper sleeve (2); the writing sleeve is provided with a side push stop end (S); when the execution part (11) is located near the side push stop end (S) of the positioning part (21), it is restricted and stopped by the positioning part (21). At this time, the pen refill (5) is partially exposed on the writing sleeve, which is the pen refill state; By pushing the actuator (11) with the pusher (62) to move it away from the restriction of the positioning part (21), the actuator (11) can be affected by the spring (4), the upper sleeve (2) and the lower sleeve (1) will separate, thereby making the writing sleeve longer and the pen core (5) retracted into the writing sleeve, which is the core-retracted state; a core-exit anti-stuck component or a side-push elastic component (7) is also provided between the writing sleeve and the side pusher (6).

3. A delicate pen with a side-push retractable core according to claim 2, characterized in that: The anti-tapping assembly includes an anti-tapping mating part (611) and an anti-tapping limiting part (A): The anti-tapping mating part (611) is disposed on the side pusher (6), and the anti-tapping limiting part (A) is disposed on the writing sleeve: The anti-tapping mating part (611) and the anti-tapping limiting part (A) shall achieve the following three methods to ensure that the side pusher is not affected by the extension and retraction of the writing sleeve during the core ejection process, thereby avoiding unnecessary displacement and ensuring a smooth core ejection process:

1. The side pusher and / or the side pusher and / or the writing sleeve are connected in a series of ways to ensure that the side pusher is not affected by the extension and retraction of the writing sleeve during the core ejection process, thereby avoiding unnecessary displacement and ensuring a smooth core ejection process: The writing sleeve is provided with a core-ejection elastic part (63B); the anti-tagging engagement part (611) can move inward and outward within a certain range; the core-ejection elastic part (63B) makes the side pusher always move outward away from the writing sleeve, and the distance between the two reaches its maximum when there is no external force interference; when the anti-tagging engagement part (611) moves outward to its maximum extent, it is parallel to the anti-tagging limiting part (A). At this time, the anti-tagging engagement part (611) is restricted by the anti-tagging limiting part (A), and the side pusher (6) cannot move up or down; II. The anti-tagging engagement part (611) can move inward and outward within a certain range; using the actuator (11) and / or Or the elastic deformation force of the positioning part (21) itself makes the side pusher always move outward away from the writing sleeve. Under the condition of no external force interference, the distance between the two reaches the maximum. When the anti-belt mating part (611) moves outward to the maximum extent, it is in parallel with the anti-belt limiting part (A). At this time, the anti-belt mating part (611) is restricted by the anti-belt limiting part (A), and the side pusher (6) cannot move up or down. Third, the inward and outward movement of the anti-belt mating part (611) is restricted, and it can only slide up and down. Then the anti-belt mating part (611) is always in parallel with the anti-belt limiting part (A). At this time, when the anti-belt mating part (611) is located at the side push stopping end (S), it is restricted by the anti-belt limiting part (A), and the side pusher (6) cannot move up or down. Fourth, the pushing part (62) has an elastic deformation force that moves to the left and right. When static, the pushing part (62) is closer to the positioning part (21) than the execution part (11). When the execution part (11) passes through the positioning part (21), the pushing part (62) cannot pass through the positioning part (21). When switching from core receiving to core output, the side pusher is located at the side push stop end (S). It is restricted by the anti-belt limiting part (A) through the anti-belt mating part (611). When the user moves the lower sleeve rod (1) and / or the upper sleeve rod (2) up, the side pusher (6) is not affected.

4. A delicate pen with a side-push retractable core according to claim 1 or 2, characterized in that: When the core is being pulled out, the pusher (6) is pushed up, down, left or right; this indirectly drives the pusher (62); the pusher (62) causes the actuator (11) or the positioning part (21) to shift, so that the actuator (11) loses the restriction of the positioning part (21), and the upper sleeve rod (2) and the lower sleeve rod (1) are separated by the elastic force of the spring (4), returning to the core-pulling state.

5. A delicate pen with a side-push retractable core according to claim 1 or 2, characterized in that: The writing sleeve is provided with an anti-slip component, which includes an anti-slip part (22) and a stop-slip part (12). When the anti-slip part (22) is located on the upper sleeve (2), the stop-slip part (12) is located on the lower sleeve (1), and vice versa.

6. A delicate pen with a side-push retractable core according to claim 1 or 2, characterized in that: The writing sleeve is provided with an anti-slip part (22), and the side pusher (6) is provided with an anti-slip part (12).

7. A delicate pen with a side-push retractable core according to claim 1 or 2, characterized in that: The positioning part (21) is inclined on the writing sleeve. When the execution part (11) passes through the positioning part (21), the pushing part (62) is affected by the positioning part (21). When there is no external force directly interfering with the side pusher and it is driven only by the extension and retraction of the writing sleeve, it cannot pass through the positioning part (21) and remains at the side push stop end (S).

8. A delicate pen with a side-push retractable core according to claim 1 or 2, characterized in that: The writing rod part or the whole adopts a teardrop shape, teardrop-like shape or triangle shape.

9. A delicate pen with a side-push retractable core according to claim 1 or 2, characterized in that: The distance between the positioning part or the execution part and the writing end of the pen refill is 3-80mm and / or the distance between the lowest end of the upper sleeve rod that can be directly contacted and the writing end of the pen refill is 3-80mm, and the lower sleeve rod can be directly contacted. By clamping one end with the web of one hand through the directly contactable parts of the lower sleeve rod and the upper sleeve rod, and then moving the other end with the fingers, the upper sleeve rod and the lower sleeve rod are extended and brought closer together, thereby causing the execution part to move up to the positioning part.

10. A delicate pen with a side-push retractable core according to claim 1 or 2, characterized in that: When the pen is retracted by pushing upwards, the side push stop (S) is located near the pen tip. At this time, the writing sleeve is provided with an anti-dislodgement part (22), and the side push member (6) is provided with a stop-dislodgement part (12). When the pen is retracted, the anti-dislodgement part (22) will move downwards. At this time, the stop-dislodgement part (12) will cause the side push member (6) to also move downwards to the side push stop (S).

11. A delicate pen with a side-push retractable core according to claim 1 or 2, characterized in that: When the lead is in the lead-out state, the ratio of the total length (L2) of the lead (5) to the total length (L0) of the writing sleeve is 1.15 at most.

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