Mechanism for slowing down movement speed of refill
By designing a speed reduction module in the push-type pen tool, the combination of the slide chute and slider slows down the movement speed of the refill, the ink surge and noise problems caused by the fast movement of the refill is solved, and a more stable and silent refill effect is achieved.
Patent Information
- Application Number
- CN202420644571.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-03-29
AI Technical Summary
In existing push-type pen tools, the refill core is faster when moving backward, which can easily cause ink to surge and unevenly distribute, which may cause ink leakage and ink breakage, and may also cause greater noise.
A mechanism to slow down the movement speed of the refill core is designed. By setting a speed reduction module on the inside of the pen rod, including a spiral slide groove and a slide block, the slide block and the slide groove form a guided sliding cooperation. The sliding cooperation between the refill supporting member and the pen rod, the refill core slows down the movement speed during the expansion and contraction process and avoids impact.
It effectively slows down the movement speed of the refill, prevents ink from surging and uneven distribution, reduces the possibility of ink leakage and ink breakage, and also reduces the noise during the refill expansion operation.
Smart Images
Figure CN222571954U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of a push-type pen, and in particular to a mechanism for slowing down the movement speed of a pen core. Background Art
[0002] In the prior art, a push-type writing instrument, such as an automatic ballpoint pen, which uses a pressing method to realize the extension and retraction of the pen core, generally includes a pen barrel, a pen core, a spring, a button, a telescopic locking mechanism and other components. The pen core, the spring and the telescopic locking mechanism are built into the inner side of the pen barrel, the spring is abutted between the front end of the pen core and the pen barrel, the telescopic locking mechanism is abutted between the front end of the button and the rear end of the pen core, a core outlet hole is provided at the front end of the pen core, and the telescopic locking mechanism includes a push rod, a rotating disk and a slide groove provided on the inner side of the pen barrel, wherein the rear end of the push rod abuts and cooperates with the front end of the button, the rotating disk is provided at the rear end of the pen core, The push-matching with the front end of the push rod, the turntable can form an axial limit match or release through rotation and the slide groove. When the button is pressed, the push rod is driven to move forward along the slide groove. When the meshing part of the push rod and the slide groove is disengaged, the force generated by the contact between the pointed feature of the front end of the push rod and the inclined surface of the push rod causes the turntable to rotate, and the pen core is kept in the extended position through the limit match of the turntable and the front part of the slide groove. When the button is pressed again, the turntable will be caused to rotate again, and the limit match of the turntable and the front part of the slide groove will be released. The turntable is driven to move backward along the slide groove through the spring, so that the pen core can be retracted into the pen holder. Therefore, by pressing and releasing the button, the front end of the pen core can be switched to extend forward or retract backward from the core outlet hole.
[0003] Since the elastic force of the spring is usually large, the pen core has a fast movement speed during the backward movement, and then suddenly stops, the pen core will have a certain impact, which is easy to cause the ink in the ink tube of the pen core to rise slightly, making the ink unevenly distributed. After long-term use, the pen may be cut off or leak when writing, especially for some users who like to press frequently. In addition, this also causes the pen core to easily produce a "clicking" sound when pressing, which has a large noise. Summary of the invention
[0004] The utility model provides a mechanism capable of slowing down the movement speed of a pen core of a push-type writing tool.
[0005] The utility model provides a mechanism for slowing down the movement speed of a pen core, comprising a pen barrel, a pen core arranged in the pen barrel, and a pen core supporting component, wherein the pen core supporting component is supported at the rear end of the pen core, the pen core supporting component and the pen core are all in active cooperation with the pen barrel along the axial direction of the pen, the pen core supporting component is linked with a telescopic locking mechanism of a push-type pen tool, the telescopic locking mechanism pushes the pen core to move forward through the pen core supporting component, and the pen core is driven by a spring arranged in the push-type pen tool to reset backward, a deceleration module is arranged on the inner side of the pen barrel, the deceleration module comprises a spiral slide groove and a slider, the slider and the slide groove form a guided sliding cooperation, the slide groove and the slider are respectively arranged on the pen core supporting component / pen barrel, the pen barrel / pen core supporting component, the pen core supporting component and the pen barrel can rotate relatively; or the slide groove and the slider are respectively arranged on the pen core / pen barrel, the pen barrel / pen core, and the pen core and the pen barrel can rotate relatively.
[0006] When the refill or the refill supporting component moves back and forth along the axis of the pen, the slider and the slide groove between the refill supporting component / refill and the pen shaft will cooperate to perform spiral motion, so that the refill supporting component / refill can move axially relative to the pen shaft and rotate at the same time. This coordination method can slow down the movement speed of the refill along the axis of the pen, so that no impact will be generated during the extension and retraction of the refill, which has a protective effect on the refill, reduces the possibility of ink leakage and ink interruption after long-term use of the pen, and can also reduce the noise during the extension and retraction operation of the refill.
[0007] Furthermore, a sleeve is provided at the front end of the refill supporting component, and the sleeve at the front end of the refill supporting component is sleeved and installed on the rear end of the ink tube of the refill, and the slide groove and the slider are respectively arranged on the outer circumferential wall of the sleeve / inner circumferential wall of the pen shaft and the inner circumferential wall of the pen shaft / outer circumferential wall of the sleeve.
[0008] In the above scheme, the moving speed of the pen core is indirectly slowed down by slowing down the movement speed of the pen core supporting component, and the deceleration module is arranged between the sleeve of the pen core supporting component and the pen body. On the one hand, the internal space of the pen can be reasonably utilized to make the structure of the pen more compact, and on the other hand, it will not affect the structure of the pen core itself, so that the utility model can be applied to standard pen cores that can be purchased on the market. Preferably, the slide groove is arranged on the outer peripheral wall of the sleeve, and the slider is arranged on the inner peripheral wall of the pen body. Such a design can reduce the difficulty of pen processing.
[0009] Furthermore, the sleeve and the refill support component are integrally formed, which can simplify the structure and facilitate processing and assembly.
[0010] As another optional solution, the pen core is provided with a sleeve, and the slide groove and the slider are respectively provided on the outer peripheral wall of the sleeve / inner peripheral wall of the pen holder, and the inner peripheral wall of the pen holder / outer peripheral wall of the sleeve. The cooperation of the slide groove and the slider can slow down the movement speed of the sleeve, thereby indirectly slowing down the movement speed of the pen core.
[0011] Furthermore, the sleeve is a component of the pen core, for example, the sleeve is integrally formed on the pen core, and when the pen core is replaced, the sleeve needs to be replaced together. In addition, the sleeve and the pen core may form a detachable connection, such as a snap connection or a threaded connection. When the pen core needs to be replaced, the sleeve and the pen core are disassembled, and the pen core is replaced separately.
[0012] Furthermore, the slide grooves and sliders are correspondingly arranged in at least two, and the at least two slide grooves are arranged in an alternating manner along the axial direction. Each slider is respectively matched with a corresponding guide slide of each slide groove. The slide groove has an entrance for the slider to be inserted. The entrance of each slide groove is arranged at the same position along the axial direction of the pen, and is evenly distributed circumferentially along the axis of the pen. The sliders are also arranged at the same position along the axial direction of the pen, and are evenly distributed circumferentially along the axis of the pen.
[0013] This design can make the force between the two components that are matched through the slide groove and the slider more uniform, making it less likely for the two to tilt or deviate during relative movement, and thus less likely for jamming to occur. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a cross-sectional view of an embodiment of the utility model;
[0015] Figure 2 It is an exploded view of an embodiment of the utility model;
[0016] Figure 3 This is a three-dimensional cross-sectional view of the pen holder of the utility model embodiment;
[0017] Figure 4 This is a structural diagram of the refill support component of the utility model embodiment;
[0018] Figure 5 This is an axial view of the refill support component of the utility model embodiment;
[0019] Figure 6 This is an axial view of the interior of the pen holder of the utility model embodiment;
[0020] Figure 7 This is a structural diagram of a sleeve according to another embodiment of the present utility model. DETAILED DESCRIPTION
[0021] The implementation of the mechanism for slowing down the movement speed of the pen core of the utility model is as follows: Figure 1-6As shown: it includes a pen holder 1, a refill 2 arranged in the pen holder 1, a refill support component 3, a telescopic locking mechanism 4, a button 5, and a spring 6. The refill support component 3 is supported at the rear end of the refill 3. The refill support component 3 and the refill 2 form an active fit with the pen holder 1 along the axial direction of the pen. The rear end of the refill support component 3 and the front end of the button 5 are respectively connected and matched with the front and rear ends of the telescopic locking mechanism 4. The spring 6 is arranged between the front end of the refill 2 and the pen holder 1, and is used to drive the refill 2 to reset backward. The cooperation between the button 5 and the telescopic locking mechanism 4 can drive the refill support component 3 to move forward, and then drive the refill 2 to move forward to achieve the refill, or drive the refill 2 to move backward through the spring 6 to achieve the refill. The telescopic locking mechanism is relatively common in existing push-type writing tools such as automatic ballpoint pens, and its specific structure and principle will not be repeated.
[0022] A deceleration module is disposed inside the pen holder 1 , and the deceleration module includes a spiral slide groove 71 and a slider 72 . The slider 72 and the slide groove 71 form a guided sliding fit.
[0023] In this embodiment, the refill support component 3 can rotate relative to the pen barrel 1, and the rear end of the refill support component 3 is in contact with the telescopic locking mechanism 4. The slide groove 71 and the slider 72 are respectively arranged on the refill support component 3 and the pen barrel 1. When the refill support component 3 moves along the axial direction of the pen barrel 1, the slider 72 arranged on the pen barrel 1 will move along the slide groove 71 arranged on the support component 3, so that the refill support component 3 produces a spiral motion. This matching mode can slow down the movement speed of the refill support component 3 along the axial direction of the pen, and can also slow down the movement speed of the refill 2 along the axial direction of the pen, so that the refill 2 will not produce impact, and the ink in the refill 2 will not be unevenly distributed, thereby reducing the possibility of ink leakage and ink interruption after long-term use of the pen, and increasing the service life of the pen. In addition, it also reduces the noise during the telescopic operation of the refill 2.
[0024] In other embodiments, the slide groove 71 and the slider 72 may also be respectively arranged on the pen barrel 1 and the refill supporting component 3 to achieve the same effect.
[0025] like Figure 1 , 4 As shown, the front end of the refill support component 3 is provided with a sleeve 31, and the sleeve 31 at the front end of the refill support component 3 is sleeved and installed on the rear end of the ink tube of the refill 2. There is at least an axially limited connection and matching relationship between the refill support component 3 and the refill 2, and they can also be fixedly connected together. The slide groove 71 and the slider 72 are respectively arranged on the outer peripheral wall of the sleeve 31 and the inner peripheral wall of the pen shaft 1. In other embodiments, the slide groove 71 and the slider 72 can also be respectively arranged on the inner peripheral wall of the pen shaft 1 and the outer peripheral wall of the sleeve 31.
[0026] By slowing down the movement speed of the refill support component 3, the movement speed of the refill is indirectly slowed down. The deceleration module is arranged between the sleeve 31 of the refill support component 3 and the pen holder 1. On the one hand, the internal space of the pen can be reasonably utilized to make the structure of the pen more compact. On the other hand, the structure of the refill itself will not be affected, so that the utility model can be applied to standard refills available on the market. The slide groove 71 is arranged on the outer peripheral wall of the sleeve 31, and the slider 72 is arranged on the inner peripheral wall of the pen holder 1. Such a design can reduce the difficulty of pen processing, especially more conducive to the injection molding of the pen holder 1.
[0027] The sleeve 31 and the refill support component 3 are integrally formed, which can simplify the structure, reduce the number of parts, and facilitate processing and assembly.
[0028] like Figure 4 , 5 As shown, the slide groove 71 and the slider 72 are respectively arranged in two, and the two slide grooves 71 are staggeredly distributed along the axial direction. Each slider 72 is respectively slidingly matched with each slide groove 71. The slide groove 71 has an entrance 710 for the slider 72 to be inserted. The entrance 710 of each slide groove 71 is arranged at the same position along the axial direction of the pen, that is, the entrance 71 of each slide groove 71 is arranged at the same axial position along the pen core support component 3, and is circumferentially evenly distributed along the axis of the pen. The sliders 72 are also arranged at the same axial position along the pen shaft, and are circumferentially evenly distributed along the axis of the pen.
[0029] This design can make the force between the two components matched by the slide groove 71 and the slider 72 more uniform, so that the two are not prone to tilting or offset during relative movement, and thus are not prone to jamming.
[0030] In another embodiment, if Figure 7 As shown, the pen core 2 is provided with a sleeve 8, and the slide groove 71 is provided on the outer peripheral wall of the sleeve 31. The pen core 2 and the pen body 1 can rotate relative to each other. The cooperation of the slide groove 71 and the slider 72 can slow down the movement speed of the sleeve 8, thereby indirectly slowing down the movement speed of the pen core 2. The difference from the above embodiment is that the sleeve 8 is a separate component relative to the pen core support component 3, and the sleeve 31 can be a component of the pen core 2, for example, the sleeve 31 is integrally formed on the pen core 2, and when the pen core 2 is replaced, the sleeve 31 needs to be connected and replaced together. In addition, the sleeve 31 and the pen core 2 can also form a detachable connection, such as a snap-on or threaded connection. When the pen core 2 needs to be replaced, the sleeve 8 and the pen core 2 are disassembled, and the pen core 2 is replaced separately.
[0031] In other embodiments, the sliding groove 71 and the sliding block 72 may also be respectively arranged on the inner circumferential wall of the pen barrel 1 and the sleeve 31 .
[0032] The above embodiment is only one of the preferred specific embodiments of the present invention. Common changes and substitutions made by those skilled in the art within the technical solution of the present invention are all included in the protection scope of the present invention.
Claims
1. A mechanism for slowing down the movement speed of a pen core, comprising a pen holder, a pen core arranged in the pen holder, and a pen core supporting component, wherein the pen core supporting component is supported at the rear end of the pen core, and the pen core supporting component and the pen core are movable with the pen holder along the axial direction of the pen, characterized in that: A deceleration module is arranged on the inner side of the pen barrel, and the deceleration module includes a spiral slide groove and a slider, and the slider and the slide groove form a guided sliding fit. The slide groove and the slider are respectively arranged on the pen core support component / pen barrel, and the pen barrel / pen core support component, and the pen core support component and the pen barrel can rotate relative to each other; or the slide groove and the slider are respectively arranged on the pen core / pen barrel, and the pen barrel / pen core, and the pen core and the pen barrel can rotate relative to each other.
2. The mechanism for slowing down the movement speed of the pen core according to claim 1, characterized in that: A sleeve is provided at the front end of the refill support component, and the sleeve at the front end of the refill support component is sleeved and installed on the rear end of the ink tube of the refill, and the slide groove and the slider are respectively arranged on the outer peripheral wall of the sleeve / inner peripheral wall of the pen shaft and the inner peripheral wall of the pen shaft / outer peripheral wall of the sleeve.
3. The mechanism for slowing down the movement speed of the pen core according to claim 2, characterized in that: The sleeve and the pen core supporting component are integrally formed.
4. The mechanism for slowing down the movement speed of the pen core according to claim 1, characterized in that: The pen core is provided with a sleeve, and the slide groove and the sliding block are respectively arranged on the outer peripheral wall of the sleeve / inner peripheral wall of the pen body and the inner peripheral wall of the pen body / outer peripheral wall of the sleeve.
5. The mechanism for slowing down the movement speed of the pen core according to claim 4, characterized in that: The sleeve is a component of the pen core.
6. The mechanism for slowing down the movement speed of the pen core according to claim 4, characterized in that: The sleeve and the pen core form a detachable connection.
7. The mechanism for slowing down the movement speed of a pen core according to any one of claims 1 to 6, characterized in that: There are at least two corresponding slide grooves and sliders, at least two slide grooves are staggered along the axial direction, each slider is respectively matched with each slide groove for guiding sliding, the slide groove has an entrance for the slider to be inserted, the entrance of each slide groove is arranged at the same position along the axial direction of the pen, and is evenly distributed circumferentially along the axis of the pen, and each slider is also arranged at the same position along the axial direction of the pen, and is evenly distributed circumferentially along the axis of the pen.