Pen

Abstract

The present application provides a pen, comprising a pen body and a pressing part, a crank connecting rod mechanism, a transmission mechanism and a pen core connected in sequence from top to bottom, wherein the pressing part can rotate downward from one side of the pen body, a hollow part is longitudinally provided inside the pen body, and the crank connecting rod mechanism, the transmission mechanism and the pen core can be movably arranged in the hollow part; the pen has a writing state and a non-writing state, in the writing state, the pressing part is offset relative to the pen body, and in the non-writing state, the pressing part and the pen body are located on the same straight line. The pen of the present application can effectively prevent rolling and is labor-saving to press.

Description

Technical Field

[0001] The present application relates to the technical field of stationery, and in particular to a pen. Background Art

[0002] At present, the jumping pens on the market are generally based on pressing, and most of them are equipped with a conventional pressing back cover at the upper end of the pen (the end away from the pen tip), and the pen core is extended and retracted through the pressing assembly inside the pen body (composed of a pressing core, a rotating wheel and a compression spring, etc.). When the pen is in a writing state, it is usually straight and easy to roll.

[0003] Therefore, it is necessary to provide an improved pen to solve the above problems. Utility Model Content

[0004] The present application provides a pen that can effectively prevent rolling and saves effort when pressed.

[0005] The present application discloses a pen, comprising a pen body, and a pressing part, a crank-connecting rod mechanism, a transmission mechanism and a pen core connected in sequence from top to bottom, wherein the pressing part can rotate downward from one side of the pen body, a hollow part penetrating longitudinally is arranged inside the pen body, and the crank-connecting rod mechanism, the transmission mechanism and the pen core can be movably arranged in the hollow part; the pen has a writing state and a non-writing state, wherein the pressing part and the pen body are located on the same straight line in the non-writing state, and the pressing part is arranged offset relative to the pen body in the writing state.

[0006] Furthermore, the transmission mechanism includes a ratchet and a rotating wheel that are snap-fitted and mutually engaged, the ratchet is connected to the crank-connecting rod mechanism and moves up and down driven by the crank-connecting rod mechanism, and oblique teeth are provided on the inner wall of the pen body. When in the writing state, the rotating wheel is engaged under the oblique teeth.

[0007] Furthermore, the ratchet includes a connecting portion and a matching portion, the connecting portion is hinged to the crank-connecting rod mechanism, the matching portion is hollow inside to form a receiving space, and the inner wall of the matching portion is provided with a first limiting portion; the rotating wheel includes a columnar protrusion and a supporting portion, the protrusion extends into the receiving space, and the side wall of the protrusion is provided with a second limiting portion that cooperates with the first limiting portion.

[0008] Furthermore, the first limiting portion and the second limiting portion are both annular convex ribs, and the second limiting portion is located above the first limiting portion.

[0009] Further, one of the first limiting portion and the second limiting portion is an annular convex rib, the other of the first limiting portion and the second limiting portion is an annular groove, and the first limiting portion and the second limiting portion have the same height.

[0010] Furthermore, the crank-connecting rod mechanism comprises a crank and a connecting rod, the crank is fixedly connected to the pressing part, one end of the connecting rod is connected to the crank, and the other end of the connecting rod is connected to the transmission mechanism.

[0011] Furthermore, the crank comprises a central portion, a rotating portion and a plug-in portion which are connected to each other, the rotating portion and the plug-in portion rotate around the central portion as an axis, the rotating portion is hinged to the connecting rod, and the plug-in portion is fixed to the pressing portion.

[0012] Furthermore, the crank-connecting rod mechanism also includes a crank bracket, which includes a circumferentially surrounding fixing portion and a longitudinally extending support rod, wherein two ends of the support rod are respectively connected to the fixing portion and the central portion.

[0013] Furthermore, the pen core includes an oil tube and a nib, and the pen also includes a tip sleeve arranged at the lower part of the pen body and an elastic member arranged between the oil tube and the tip sleeve, the tip sleeve accommodates the nib and part of the oil tube, and the tip sleeve is threadedly or snap-connected to the pen body.

[0014] Furthermore, in the writing state, the pressing portion is perpendicular to the pen body or inclined at a preset angle.

[0015] The pen of the present application is provided with a push part that can rotate laterally, and the push part is arranged to deviate from the pen body in the writing state, which can effectively prevent the pen from rolling freely, avoid the pen from moving or slipping due to rolling, and reduce the risk of loss or damage. At the same time, the setting of the crank connecting rod mechanism converts the curved motion of the push part into the linear motion of the pen core, so that the user can press the push part by rotating it laterally, which saves more effort for the user, reduces the fatigue of using the pen, and improves the comfort.

[0016] 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 present specification. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the specification and, together with the description, serve to explain the principles of the specification.

[0018] Figure 1 It is a front view of the pen of the present application in a non-writing state.

[0019] Figure 2 is along Figure 1 Section view along line AA.

[0020] Figure 3 It is a side view of the pen of the present application in the writing state.

[0021] Figure 4 It is a front view of the pen of the present application in the writing state.

[0022] Figure 5 is along Figure 4 Cross-sectional view along line BB.

[0023] Figure 6 It is a front view of the crank-connecting rod mechanism and the transmission mechanism of the present application.

[0024] Figure 7 It is a cross-sectional view of the ratchet of the present application.

[0025] Figure 8 It is a cross-sectional view of the runner of the present application.

[0026] Fig. 9 It is a cross-sectional view of the ratchet and the rotating wheel of the present application when they are matched.

[0027] Explanation of the accompanying drawings: 10, pen body; 11, hollow part; 12, slot; 20, pressing part; 21, boss; 30, crank-connecting rod mechanism; 31, crank; 311, central part; 312, rotating part; 313, plug-in part; 3131, hook; 32, connecting rod; 33, crank bracket; 331, fixing part; 332, supporting rod; 40, transmission mechanism; 41, ratchet; 411, connecting part; 412, matching part; 413, accommodating space; 414, first limiting part; 42, rotating wheel; 421, protruding part; 422, supporting part; 423, second limiting part; 50, pen core; 51, oil pipe; 52, pen tip; 60, tip sleeve; 70, elastic member. DETAILED DESCRIPTION

[0028] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this specification. Instead, they are merely examples of devices and methods consistent with some aspects of this specification as detailed in the appended claims.

[0029] The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit the present application. The singular forms of "a", "the" and "the" used in this specification and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0030] Next, the embodiments of the present application are described in detail.

[0031] like Figures 1 to 5 As shown, the present application provides a pen, including a pen body 10, a push part 20, a crank connecting rod mechanism 30, a transmission mechanism 40 and a pen core 50. The push part 20, the crank connecting rod mechanism 30, the transmission mechanism 40 and the pen core 50 are connected in sequence from top to bottom. In the present application, the upper side refers to the side close to the push part 20, and the lower side refers to the side away from the push part 20.

[0032] The pen body 10 is provided with a hollow portion 11 extending longitudinally therethrough, and the crank-connecting rod mechanism 30, the transmission mechanism 40 and the pen core 50 are movably arranged in the hollow portion 11. The push portion 20 is located outside the pen body 10 and can be rotated downward from one side of the pen body 10. The pen body 10 is provided with a slot 12 for the push portion 20 and the crank-connecting rod mechanism 30 to rotate, and the slot 12 extends downward from the top of the pen body 10 along one side of the pen body 10.

[0033] The inner wall of the pen body 10 is also provided with guide grooves and bevel teeth (not shown in the figure) for cooperating with the transmission mechanism 40 to realize the pressing and ejecting of the core. The outer contour of the pen body 10 is smooth and round, which reduces the risk of scratches or cuts during use and improves the safety of use. On the other hand, it improves the comfort of holding and looks more beautiful.

[0034] The pen has a writing state and a non-writing state. In the non-writing state, the push part 20 and the pen body 10 are located on the same straight line. In the writing state, the push part 20 is offset relative to the pen body 10. The offset here specifically refers to the push part 20 being perpendicular to the pen body 10 or inclined at a preset angle. In this embodiment, the push part 20 rotates 90° under external pressure and is perpendicular to the pen body 10 in the writing state. In other cases, the inclination angle of the push part 20 in the writing state can also be flexibly set according to the specific design of the pen.

[0035] The pressing part 20 can be designed in any shape. In the present application, the pressing part 20 is spherical, which makes the overall appearance of the pen more simple and smooth, and makes the user feel more comfortable when pressing. In some cases, the pressing part 20 can also be designed in other shapes to enhance the fun and playability. The pressing part 20 is hollow inside, which reduces the overall weight of the pen, reduces writing fatigue, and improves portability. The pressing part 20 can also be designed as a solid structure, or the pressing part 20 and the crank connecting rod mechanism 30 can be integrated.

[0036] Please also refer to Figure 6 The crank-connecting rod mechanism 30 includes a crank 31, a connecting rod 32 and a crank bracket 33. The side of the crank 31 away from the refill 50 is fixedly connected to the push portion 20. One end of the connecting rod 32 is connected to the crank 31, and the other end is connected to the transmission mechanism 40. The crank bracket 33 is located below the crank 31 and is used to support the crank 31.

[0037] The crank 31 includes a central portion 311, a rotating portion 312 and a plug-in portion 313 which are connected to each other. The rotating portion 312 and the plug-in portion 313 rotate with the central portion 311 as the axis. In this embodiment, the central portion 311 is set as an annular structure, which is relatively fixed in position and rotates around its own axis. The rotating portion 312 is a fan-shaped structure surrounding the outer side of the central portion 311, and its upper part is hinged to the connecting rod 32. The outer contour curvature of the rotating portion 312 is roughly the same as the outer contour curvature of the corresponding part of the pen body 10. When rotating, the rotating portion 312 is always located in the slot 12, ensuring the smoothness and stability of the rotation.

[0038] The plug-in portion 313 is disposed near the connecting rod 32, extends upward from the center portion 311 out of the slot 12 and is fixed to the push portion 20. A receiving hole is provided at the bottom of the push portion 20, and the plug-in portion 313 extends into the receiving hole. The inner wall of the push portion 20 extends radially to form a boss 21, and a hook portion 3131 is provided at one end of the plug-in portion 313 away from the center portion 311. The hook portion 3131 cooperates with the boss 21 to fix the crank 31 to the push portion 20.

[0039] The crank bracket 33 includes a fixing portion 331 and a support rod 332. The fixing portion 331 surrounds the pen body 10 in a circumferential direction. The support rod 332 extends longitudinally, and its two ends are respectively connected to the fixing portion 331 and the central portion 311. The crank bracket 33 and the pen body 10 are relatively fixed in position. Specifically, the upper end of the fixing portion 331 cooperates with the step portion of the inner wall of the pen body 10 to limit the upward movement of the crank bracket 33. The outer diameter of the receiving hole at the bottom of the pressing portion 20 is larger than the slot 12, which ensures that the pressing portion 20 will not enter the pen body 10 to further limit the downward movement of the crank bracket 33. In some cases, the crank bracket 33 can also be provided integrally with the pen body 10.

[0040] The crank-connecting rod mechanism 30 is connected to the push part 20 at the top through the crank 31, and is connected to the transmission mechanism 40 at the bottom through the connecting rod 32. When in use, the user presses the push part 20, causing the push part 20 to rotate around the center part 311 along the slot 12, and the crank 31 fixed to the push part 20 also rotates accordingly. The upper end of the connecting rod 32 moves with the crank 31, and the lower end moves longitudinally under the restriction of the pen body 10, thereby driving the transmission mechanism 40 and the pen core 50 to move longitudinally. The crank-connecting rod mechanism 30 converts the rotational motion of the push part 20 into the linear motion of the transmission mechanism 40 and the pen core 50, making the pressing process simpler and more labor-saving, and improving the pressing stability.

[0041] Please also refer to Figures 7 to 9The pen of this embodiment is a push-type pen. The transmission mechanism 40 includes a ratchet 41 and a rotating wheel 42 that are pressed together and mutually engaged. The ratchet 41 is connected to the crank-connecting rod mechanism 30 and moves up and down under the drive of the crank-connecting rod mechanism 30. The lower end of the rotating wheel 42 abuts against the pen core 50. In the writing state, the rotating wheel 42 is engaged under the oblique teeth on the inner wall of the pen body 10, pressing the pen core 50 to extend out of the pen body 10, thereby realizing the press-out of the core.

[0042] Specifically, the ratchet 41 includes a connecting portion 411 and a matching portion 412. The connecting portion 411 is arranged in a columnar shape, extends into the fixing portion 331 and is hinged to the lower end of the connecting rod 32, and moves up and down driven by the connecting rod 32. The inner hollow of the matching portion 412 forms a receiving space 413. The rotating wheel 42 includes a columnar protrusion 421 and a supporting portion 422. The protrusion 421 extends into the receiving space 413 and is engaged with the matching portion 412. The lower end of the matching portion 412 and the upper end of the supporting portion 422 are both provided with oblique teeth, which cooperate with the guide groove and oblique teeth provided on the inner wall of the pen body 10 to realize the extension and fixation of the pen core 50.

[0043] Furthermore, the inner wall of the matching portion 412 is provided with a first limiting portion 414, and the side wall of the protruding portion 421 is provided with a second limiting portion 423, and the first limiting portion 414 cooperates with the second limiting portion 423 to achieve the clamping connection between the ratchet 41 and the rotating wheel 42. In this embodiment, the first limiting portion 414 and the second limiting portion 423 are both annular ribs, and the second limiting portion 423 is located above the first limiting portion 414, ensuring that the protruding portion 421 and the matching portion 412 will not be separated from each other.

[0044] In some cases, one of the first limiting portion 414 and the second limiting portion 423 is an annular convex rib, and the other is an annular groove, and the first limiting portion 414 and the second limiting portion 423 have the same height, so that the ratchet 41 and the rotating wheel 42 can achieve relative position restriction in the up and down directions through the concave-convex cooperation of the first limiting portion 414 and the second limiting portion 423. The annular convex rib and the annular groove of the present application can be arranged continuously or intermittently along the annular shape. The annular convex rib can be integrally formed with the ratchet 41 or the rotating wheel 42, or they can be formed separately and then connected together.

[0045] It is understandable that in order to enable the ratchet 41 and the rotating wheel 42 to achieve a click-fit, the setting of the first limit portion 414 and the second limit portion 423 does not completely fix the ratchet 41 and the rotating wheel 42 together, but only achieves fixation in the up and down directions, and the ratchet 41 and the rotating wheel 42 can still rotate relative to each other.

[0046] In some cases, the pen of the present application may also adopt other core-extracting methods. For example, a slot that matches the transmission mechanism 40 may be provided on the inner wall of the pen body 10, and the longitudinal reciprocating motion of the pen core 50 is achieved through the connection between the transmission mechanism 40 and the pen body 10.

[0047] In this embodiment, the pen further includes a tip cover 60. The tip cover 60 is disposed at the lower portion of the pen body 10, and together with the pen body 10, constitutes the outer shell of the pen. The pen core 50 includes an oil pipe 51 and a pen tip 52. The upper portion of the oil pipe 51 abuts against the transmission mechanism 40, and moves up and down under the push of the transmission mechanism 40. The tip cover 60 accommodates the pen tip 52 and part of the oil pipe 51. When the pen tip 52 extends out of the tip cover 60, the writing function can be realized. The tip cover 60 is threadedly connected or snap-connected to the pen body 10, so as to facilitate the replacement of the pen core 50. In some cases, the pen body 10 and the tip cover 60 can also be provided integrally.

[0048] Furthermore, the pen further comprises an elastic member 70. One end of the elastic member 70 abuts against the lower end of the oil tube 51, and the other end of the elastic member 70 abuts against the tip sleeve 60. The pen tip 52 can be retracted into the tip sleeve 60 under the action of the second elastic member 70.

[0049] The pen of this application includes a writing state and a non-writing state. Figure 1 and Figure 2 In the non-writing state, the pressing portion 20 and the pen body 10 are located on the same straight line, the pen tip 52 is retracted in the tip sleeve 60, and the elastic member 70 is opened.

[0050] Please also refer to Figures 3 to 5 When the user presses the pressing part 20, the pen changes from the non-writing state to the writing state. The pressing part 20 rotates downward from one side of the pen body 10 and forms a certain angle with the pen body 10. The crank 31 rotates together with the pressing part 20 and drives the transmission mechanism 40 to move downward through the connecting rod 32. The pen core 50 moves downward under the push of the transmission mechanism 40, and the pen tip 52 extends out of the tip cover.

[0051] When the user releases the push part 20, the pen core 50 slightly rebounds under the action of the elastic member 70. The rotating wheel 42 engages with the bevel teeth on the inner wall of the pen body 10, keeping the pen core 50 in the extended state. The ratchet 41 engages with the rotating wheel 42, and further drives the crank-connecting rod mechanism 30 to maintain the position when it is pressed. The push part 20 slightly rebounds under the drive of the crank 31 and remains in a state perpendicular to the pen body 10. At this time, the pen is in a writing state.

[0052] After use, the user presses the pressing part 20 again and releases it, and the pen core 50 rebounds to the initial position under the action of the elastic member 70, and the pen tip 52 is accommodated in the tip cover 60 through the pressing operation of the transmission mechanism 40, realizing the transition from the writing state to the non-writing state.

[0053] The pen of the present application is provided with a push portion 20 that can be rotated laterally, and the push portion 20 is arranged to deviate relative to the pen body 10 in the writing state. In the office, study or other environments where the pen needs to be put down and picked up frequently, the pen can be effectively prevented from rolling freely on a plane, avoiding the pen from moving or slipping due to rolling, and reducing the risk of loss or damage.

[0054] At the same time, by setting the crank-connecting rod mechanism 30, the crank 31 is fixed to the pressing part 20, and the connecting rod 32 is connected to the transmission mechanism 40. When the user presses the pressing part 20, the rotation of the crank 31 causes the connecting rod 32 to drive the transmission mechanism 40 to move up and down, and further realizes the extension and retraction of the pen core 50. The setting of the crank-connecting rod mechanism 30 converts the curved motion of the pressing part 20 into the linear motion of the pen core 50, so that the user can press the pressing part 20 by rotating it sideways, which improves the fun and playability of the pen. At the same time, the crank-connecting rod mechanism 30 makes the rotation of the pressing part 20 smoother, and the user saves more effort when pressing, reduces the fatigue of using the pen, and improves the comfort.

[0055] The above is only a preferred implementation mode of the present application, and does not constitute any form of limitation to the present application. Although the present application has been disclosed as a preferred implementation mode as above, it is not used to limit the present application. Any technician familiar with this profession can make some changes or modify the technical contents disclosed above into equivalent implementation modes without departing from the scope of the technical solution of the present application. However, any simple modification, equivalent change and modification made to the above implementation modes based on the technical essence of the present application without departing from the content of the technical solution of the present application still fall within the scope of the technical solution of the present application.

Claims

1. A pen, characterized in that: The invention comprises a pen body and a pressing part, a crank-connecting rod mechanism, a transmission mechanism and a refill which are connected in sequence from top to bottom. The pressing part can rotate downward from one side of the pen body. A hollow part which passes through the pen body in the longitudinal direction is arranged inside the pen body. The crank-connecting rod mechanism, the transmission mechanism and the refill can be movably arranged in the hollow part. The pen has a writing state and a non-writing state. In the non-writing state, the pressing part and the pen body are located on the same straight line. In the writing state, the pressing part is arranged to deviate from the pen body.

2. The pen according to claim 1, characterized in that: The transmission mechanism includes a ratchet and a rotating wheel that are snap-fitted and mutually engaged. The ratchet is connected to the crank-connecting rod mechanism and moves up and down driven by the crank-connecting rod mechanism. Bevel teeth are arranged on the inner wall of the pen body. When in the writing state, the rotating wheel is engaged below the bevel teeth.

3. The pen according to claim 2, characterized in that: The ratchet includes a connecting portion and a matching portion, the connecting portion is hinged to the crank-connecting rod mechanism, the matching portion is hollow inside to form a receiving space, and the inner wall of the matching portion is provided with a first limiting portion; the rotating wheel includes a columnar protrusion and a supporting portion, the protrusion extends into the receiving space, and the side wall of the protrusion is provided with a second limiting portion that cooperates with the first limiting portion.

4. The pen according to claim 3, characterized in that: The first limiting portion and the second limiting portion are both annular convex ribs, and the second limiting portion is located above the first limiting portion.

5. The pen according to claim 3, characterized in that: One of the first limiting portion and the second limiting portion is an annular convex rib, the other of the first limiting portion and the second limiting portion is an annular groove, and the first limiting portion and the second limiting portion have the same height.

6. The pen according to claim 1, characterized in that: The crank-connecting rod mechanism comprises a crank and a connecting rod, wherein the crank is fixedly connected to the pressing portion, one end of the connecting rod is connected to the crank, and the other end of the connecting rod is connected to the transmission mechanism.

7. The pen according to claim 6, characterized in that The crank comprises a central portion, a rotating portion and a plug-in portion which are connected to each other. The rotating portion and the plug-in portion rotate with the central portion as an axis. The rotating portion is hinged to the connecting rod, and the plug-in portion is fixed to the pressing portion.

8. The pen according to claim 7, characterized in that The crank-connecting rod mechanism further comprises a crank bracket, which comprises a circumferentially surrounding fixing portion and a longitudinally extending supporting rod, wherein two ends of the supporting rod are respectively connected to the fixing portion and the central portion.

9. The pen according to claim 1, characterized in that: The pen core includes an oil tube and a nib, and the pen also includes a nib sleeve arranged at the lower part of the pen body and an elastic member arranged between the oil tube and the nib sleeve, the nib sleeve accommodates the nib and part of the oil tube, and the nib sleeve is threadedly or snap-connected to the pen body.

10. The pen according to claim 1, characterized in that When in writing state, the pressing part is perpendicular to the pen body or inclined at a preset angle.

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