Automatic reset pen

Abstract

An automatic reset pen, comprising a refill, a shell, a counterweight, a reset device and a transmission assembly. The refill is provided with a tip for writing, and the shell is provided with a tip hole matching the tip and located at the end part. When a user writes normally, the automatic reset pen is vertically placed downwards, and the counterweight moves in a first direction relative to the shell, so that the refill is driven by the transmission assembly to move in the first direction relative to the shell, and then the tip extends out of the tip hole; and after the user finishes writing normally, the automatic reset pen is horizontally placed, and the reset device pushes the counterweight to move in a second direction relative to the shell, so that the refill is driven by the transmission assembly to move in the second direction relative to the shell, and then the tip retracts from the tip hole, thereby automatically achieving retraction of the tip.

Description

Automatic reset pen Technical Field

[0001] The invention relates to an automatic resetting pen. Background Art

[0002] A pen is a basic writing tool. Depending on how it's used, pens are categorized as either self-resetting pens or capped pens. Self-resetting pens use a press to reveal and retract the nib. However, in practice, users often forget to retract the nib after pressing it, which can damage the nib or contaminate other objects. Technical Solutions

[0003] Based on this, it is necessary to provide an automatic reset pen that can solve the above problems.

[0004] An automatic reset pen comprises a pen core, a shell sleeved over the pen core, a counterweight slidably connected to the shell, a reset device respectively connected to the counterweight and the shell, and a transmission assembly respectively connected to the counterweight and the pen core;

[0005] The pen core has a nib for writing, and the housing is provided with a nib hole at the end thereof that matches the nib. The counterweight and the reset device can enable the pen core to move relative to the housing, thereby extending or retracting the nib from the nib hole.

[0006] When the automatic reset pen is placed vertically downward, the counterweight moves in a first direction relative to the housing, thereby driving the pen core to move in the first direction relative to the housing through the transmission assembly, thereby causing the pen tip to extend from the pen tip hole. At this time, the reset device has a tendency to push the counterweight in a second direction relative to the housing, and the first direction and the second direction are opposite;

[0007] When the automatic reset pen is placed horizontally, the reset device pushes the counterweight to move in the second direction relative to the housing, thereby driving the pen core to move in the second direction relative to the housing through the transmission assembly, thereby causing the pen tip to retract from the pen tip hole.

[0008] In one embodiment, the reset device is an elastic member or a magnetic component.

[0009] In one embodiment, the elastic member is a spring sleeved outside the pen core.

[0010] In one embodiment, the counterweight is cylindrical and slidably sleeved outside the pen core, and the transmission assembly, the counterweight and the reset device are sequentially connected along the first direction.

[0011] In one embodiment, the automatic reset pen further includes a buffer component, which is connected to the counterweight and the transmission assembly respectively.

[0012] In one embodiment, the buffer member includes a spiral structure sleeved outside the pen core, and the buffer member is arranged at an end of the counterweight away from the resetting device.

[0013] In one embodiment, the buffer component further includes a cylindrical mounting structure, which is sleeved on an end of the counterweight away from the reset device, and the buffer component including the mounting structure and the spiral structure is an integrally molded plastic component.

[0014] In one embodiment, a blocking portion is provided on the inner side of the housing;

[0015] When the automatic reset pen is placed vertically downward and the pen tip is writing, the transmission assembly abuts against the blocking portion, thereby preventing the pen tip from retracting during writing.

[0016] In one embodiment, the transmission assembly includes a first connecting member, a connecting rod, a rotating member, and a second connecting member connected in sequence;

[0017] The first connecting member is provided at an end of the pen core away from the pen tip, one end of the connecting rod is rotatably connected to the first connecting member, a first end, a second end, and a third end are provided in a peripheral area of ​​the rotating member in sequence, the other end of the connecting rod is rotatably connected to the first end, the second end is rotatably connected to the housing, one end of the second connecting member is rotatably connected to the third end, and the other end of the second connecting member is rotatably connected to the counterweight;

[0018] When the automatic reset pen is placed vertically downward, the counterweight drives the second connecting member, the rotating member, the connecting rod and the first connecting member to move in sequence, so that the other end of the connecting rod contacts the blocking portion.

[0019] In one embodiment, when the pen tip extends from the pen tip hole, the first end and the third end are respectively located on both sides of a line connecting the second end and one end of the connecting rod.

[0020] In one embodiment, the rotating member is fan-shaped, the first end and the third end are respectively located at two ends of an arcuate side of the rotating member, and the second end is located at an angle between two straight sides of the rotating member.

[0021] In one embodiment, the first connecting member is sleeved on an end of the pen core away from the pen tip, and the second connecting member is a metal wire.

[0022] In one embodiment, the automatic reset pen further comprises a locking member;

[0023] The housing is provided with a sliding groove, the locking member is slidably arranged in the sliding groove, and the locking member includes an operating portion located on the outside and a locking portion located on the inside;

[0024] The locking member can move back and forth between a locking position and an unlocking position along the sliding slot. When the locking member slides to the locking position, the rotating member is snap-connected with the locking portion, thereby preventing the transmission assembly from moving.

[0025] In one embodiment, the locking portion is provided with a buckle structure, and the rotating member is provided with a buckle matching structure matching the buckle structure;

[0026] The snap-fit ​​structure is a snap-fit ​​protrusion, and the snap-fitting structure is a snap-fitting groove; or the snap-fit ​​structure is a snap-fitting groove, and the snap-fitting structure is a snap-fitting protrusion.

[0027] In one embodiment, the locking portion is provided with a locking positioning portion and an unlocking positioning portion, and the housing is provided with a locking positioning matching portion matching the locking positioning portion and an unlocking positioning matching portion matching the unlocking positioning portion.

[0028] In one embodiment, the locking and positioning portion and the locking and positioning matching portion are both ridges;

[0029] And / or, the unlocking positioning portion and the unlocking positioning matching portion are both ridges.

[0030] In one embodiment, the unlocking and positioning portion is two parallel and spaced-apart strips, each of which is provided with a first protrusion on one side away from the other. The unlocking and positioning matching portion is a slot, and the inner sidewall of the slot is provided with a second protrusion that matches the two first protrusions.

[0031] Alternatively, the locking positioning portion is two bar blocks that are parallel to each other and spaced apart, and the two bar blocks are each provided with a first protrusion on one side away from each other. The locking positioning matching portion is a slot, and the inner side wall of the slot is provided with a second protrusion that matches the two first protrusions.

[0032] When this automatic reset pen is in use, when the user is writing normally, the automatic reset pen is placed vertically downward, and the counterweight moves in a first direction relative to the shell, thereby driving the pen core to move in the first direction relative to the shell through the transmission component, and then the pen tip extends from the pen tip hole; after the user finishes writing normally, the automatic reset pen is placed horizontally, and the reset device pushes the counterweight to move in the second direction relative to the shell, thereby driving the pen core to move in the second direction relative to the shell through the transmission component, and then the pen tip retracts from the pen tip hole. Beneficial effects

[0033] Compared with traditional automatic resetting pens, this automatic resetting pen can automatically retract the pen tip, thereby avoiding the user forgetting to press the pen tip again to retract it, and avoiding the situation where the pen tip is damaged or contaminated other objects. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] FIG1 is a schematic diagram of a three-dimensional structure of an automatic reset pen in one state according to one embodiment.

[0035] FIG. 2 is a schematic diagram of the internal structure of the automatic reset pen shown in FIG. 1 in one direction.

[0036] FIG3 is a schematic diagram of the internal structure of the automatic reset pen shown in FIG1 from another direction.

[0037] FIG4 is a schematic diagram of the three-dimensional structure of the automatic reset pen shown in FIG1 in another state.

[0038] FIG. 5 is a schematic diagram of the internal structure of the automatic reset pen shown in FIG. 4 in one direction.

[0039] FIG6 is a schematic diagram of the internal structure of the automatic reset pen shown in FIG4 from another direction.

[0040] FIG7 is a schematic diagram of the enlarged structure of area A in FIG2 .

[0041] FIG8 is a schematic diagram of the enlarged structure of area B in FIG5 . Modes for Carrying Out the Invention

[0042] To make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0043] In conjunction with Figures 1, 2, 3, 4, 5 and 6, the present invention discloses an automatic reset pen of one embodiment, including a pen core 10, a shell 20 sleeved on the pen core 10, a counterweight 30 slidably connected to the shell 20, a reset device 40 respectively connected to the counterweight 30 and the shell 20, and a transmission assembly 50 respectively connected to the counterweight 30 and the pen core 10.

[0044] The pen core 10 has a nib 12 for writing, and a nib hole 22 is provided on the housing 20, which matches the nib 12 and is located at the end. The counterweight 30 and the reset device 40 can move the pen core 10 relative to the housing 20 through the transmission assembly 50, so that the nib 12 extends or retracts from the nib hole 22.

[0045] 1 to 3 , when the automatic reset pen is placed vertically downward, the counterweight 30 moves in a first direction relative to the housing 20 , thereby driving the pen core 10 to move in the first direction relative to the housing 20 through the transmission assembly 50 , thereby causing the pen tip 12 to extend from the pen tip hole 22 . At this time, the reset device 40 tends to push the counterweight 30 in a second direction relative to the housing 20 , and the first direction and the second direction are opposite.

[0046] 4 to 6 , when the automatic reset pen is placed horizontally, the reset device 40 pushes the counterweight 30 to move in the second direction relative to the housing 20 , thereby driving the pen core 10 to move in the second direction relative to the housing 20 through the transmission assembly 50 , thereby causing the pen tip 12 to retract from the pen tip hole 22 .

[0047] It should be noted that the automatic reset pens in Figures 1 to 3 are all in a state where the pen tip 12 extends from the pen tip hole 22, and the automatic reset pens in Figures 4 to 6 are all in a state where the pen tip 12 retracts from the pen tip hole 22.

[0048] It should be noted that, in this embodiment, the direction in which the counterweight 30 moves toward the pen tip hole 22 is the first direction, and the direction in which the counterweight 30 moves away from the pen tip hole 22 is the second direction.

[0049] When using this automatic reset pen, the user normally writes with the pen placed vertically downward, and the counterweight 30 moves in a first direction relative to the housing 20, thereby driving the pen refill 10 to move in the first direction relative to the housing 20 via the transmission assembly 50, thereby causing the pen tip 12 to extend from the nib hole 22. After the user normally finishes writing, the automatic reset pen is placed horizontally, and the reset device 40 pushes the counterweight 30 to move in a second direction relative to the housing 20, thereby driving the pen refill 10 to move in the second direction relative to the housing 20 via the transmission assembly 50, thereby causing the pen tip 12 to retract from the nib hole 22.

[0050] Compared with traditional automatic reset pens, this automatic reset pen can automatically retract the pen tip 12, thereby avoiding the user forgetting to press the pen tip 12 again to retract it, and avoiding the situation where the pen tip 12 is damaged or contaminated other objects.

[0051] Generally speaking, the reset device 40 can be an elastic member or a magnetic component.

[0052] With reference to the accompanying drawings, in this embodiment, the elastic member is a spring sleeved outside the pen core 10 .

[0053] With reference to the accompanying drawings, in this embodiment, the counterweight 30 is cylindrical and slidably sleeved on the outside of the pen core 10 , and the transmission assembly 50 , the counterweight 30 and the reset device 40 are sequentially connected along the first direction.

[0054] This structural setting makes the overall layout of the automatic reset pen reasonable, the center of gravity is distributed on the axis, and the user experience is better.

[0055] With reference to the accompanying drawings, in this embodiment, the automatic reset pen further includes a buffer member 60 , and the buffer member 60 is connected to the counterweight 30 and the transmission assembly 50 respectively.

[0056] When the counterweight 30 moves in the first direction, the transmission assembly 50 may be damaged due to a sudden impact. The buffer 60 can alleviate this problem.

[0057] In other embodiments, the buffer member 60 may not be provided.

[0058] With reference to the drawings, in this embodiment, the buffer member 60 includes a spiral structure 62 sleeved on the outside of the pen core 10 , and the buffer member 60 is disposed at an end of the counterweight 30 away from the reset device 40 .

[0059] Specifically, the buffer member 60 further includes a cylindrical mounting structure 64 , which is sleeved on one end of the counterweight 30 away from the reset device 40 , and the buffer member 60 including the mounting structure 64 and the spiral structure 62 is an integrally formed plastic member.

[0060] 7 and 8 , a blocking portion 24 is provided on the inner side of the housing 20 .

[0061] When the automatic reset pen is placed vertically downward and the pen tip 12 is writing, the transmission assembly 50 abuts against the blocking portion 24, thereby preventing the pen tip 12 from retracting.

[0062] 7 and 8 , in this embodiment, the transmission assembly 50 includes a first connecting member 52 , a connecting rod 54 , a rotating member 56 , and a second connecting member 58 , which are connected in sequence.

[0063] The first connecting member 52 is arranged at an end of the pen core 10 away from the pen tip 12, one end of the connecting rod 54 is rotatably connected to the first connecting member 52, and the outer area of ​​the rotating member 56 is provided with a first end 562, a second end 564 and a third end 566 spaced apart in sequence. The other end of the connecting rod 54 is rotatably connected to the first end 562, the second end 564 is rotatably connected to the housing 20, one end of the second connecting member 58 is rotatably connected to the third end 566, and the other end of the second connecting member 58 is rotatably connected to the counterweight 30 through the buffer member 60.

[0064] In other embodiments, the buffer member 60 may be eliminated, and the other end of the second connecting member 58 may be directly rotatably connected to the counterweight 30 .

[0065] When the automatic reset pen is placed vertically downward, the counterweight 30 drives the second connecting member 58, the rotating member 56, the connecting rod 54 and the first connecting member 52 to move in sequence, so that the other end of the connecting rod 54 contacts the blocking part 24, thereby ensuring normal writing of the automatic reset pen.

[0066] 4 to 6 , 7 , and 8 , when the automatic reset pen is placed horizontally, the reset device 40 pushes the counterweight 30 to move in the second direction relative to the housing 20. The counterweight 30 then sequentially drives the second connecting rod 58 , the transmission member 56 , the connecting rod 54 , and the first connecting member 52 to move. This, in turn, drives the pen refill 10 in the second direction relative to the housing 20 via the transmission assembly 50 , thereby retracting the pen tip 12 from the pen tip hole 22. At this time, the blocking portion 24 does not block the movement of the connecting rod 54 , thereby not preventing the automatic reset of the pen tip 12.

[0067] 7 , in order to further optimize the mechanics, in this embodiment, when the nib 12 extends from the nib hole 22 , the first end 562 and the third end 566 are respectively located on either side of a line connecting the second end 564 and one end of the connecting rod 54 .

[0068] Specifically, a line connecting the second end 564 and one end of the connecting rod 54 is recorded as a straight line, and the first end 562 is located on one side of the straight line, and the third end 566 is located on the other side of the straight line.

[0069] In conjunction with the drawings, specifically, in this embodiment, the rotating member 56 is fan-shaped, the first end 562 and the third end 566 are respectively located at the two ends of the arc edge of the rotating member 56, and the second end 564 is located at the angle between the two straight edges of the rotating member 56.

[0070] With reference to the accompanying drawings, the first connecting member 52 is sleeved on the end of the pen core 10 away from the pen tip 12, and the second connecting member 58 is a metal wire.

[0071] In other embodiments, the first connecting member 52 , the rotating member 56 and the second connecting member 58 may also be of other shapes or structures, as long as they can achieve the above functions.

[0072] With reference to the accompanying drawings, in this embodiment, the automatic reset pen further includes a locking member 70 .

[0073] The housing 20 is provided with a sliding slot 26 , and the locking member 70 is slidably disposed in the sliding slot 26 . The locking member 70 includes an operating portion 72 located on the outside and a locking portion 74 located on the inside.

[0074] It should be noted that, in the automatic reset pens shown in FIG. 1 to FIG. 6 , the locking member 70 is located in the locked position.

[0075] With reference to the accompanying drawings, the locking member 70 only needs to be pushed upwards to slide from the locked position to the unlocked position.

[0076] The locking member 70 can move back and forth between the locking position and the unlocking position along the sliding groove 26. When the locking member 70 slides to the locking position, the rotating member 56 is snap-connected with the locking portion 74, thereby preventing the transmission assembly 50 from moving.

[0077] 3 and 6 , a snap-fit ​​structure 742 is provided on the locking portion 74 , and a snap-fit ​​structure 568 matching the snap-fit ​​structure 742 is provided on the rotating member 56 .

[0078] In this embodiment, the buckle structure 742 is a buckle protrusion, and the buckle matching structure 568 is a buckle slot. In other embodiments, the buckle structure 742 can also be set as a buckle slot, and the buckle matching structure 568 can be set as a buckle protrusion.

[0079] In combination with the drawings, in this embodiment, a locking positioning portion and an unlocking positioning portion are provided on the locking portion 74, and a locking positioning matching portion matching the locking positioning portion and an unlocking positioning matching portion 28 matching the unlocking positioning portion are provided on the housing 20, thereby realizing the positioning of the locking member 70 in the locking position and the unlocking position.

[0080] With reference to the accompanying drawings, in this embodiment, the locking and positioning portion and the locking and positioning matching portion are both ridges.

[0081] In combination with the drawings, in this embodiment, the unlocking positioning portion is two bar blocks that are parallel to each other and spaced apart, and the two bar blocks are each provided with a first protrusion on one side away from each other. The unlocking positioning matching portion 28 is a card slot, and the inner side wall of the card slot is provided with a second protrusion that matches the two first protrusions.

[0082] In other embodiments, the unlocking positioning portion and the unlocking positioning matching portion 28 may both be ridges.

[0083] In other embodiments, the locking positioning portion may be two strip blocks that are parallel to each other and spaced apart, and the two strip blocks are each provided with a first protrusion on one side away from each other. The locking positioning matching portion may also be a slot, and the inner side wall of the slot is provided with a second protrusion that matches the two first protrusions.

[0084] The above-described embodiments merely represent several embodiments of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. An automatic reset pen, characterized in that: It comprises a pen core, a shell sleeved outside the pen core, a counterweight slidably connected to the shell, a reset device respectively connected to the counterweight and the shell, and a transmission assembly respectively connected to the counterweight and the pen core; The pen core has a nib for writing, the housing is provided with a nib hole matching the nib and located at the end, the counterweight and the reset device can make the pen core move relative to the housing, so that the nib extends out or retracts from the nib hole; When the automatic reset pen is placed vertically downward, the counterweight moves relative to the housing in a first direction, thereby driving the pen core to move relative to the housing in the first direction through the transmission assembly, thereby causing the pen tip to extend from the pen tip hole. At this time, the reset device has a tendency to push the counterweight relative to the housing in a second direction, and the first direction is opposite to the second direction; When the automatic reset pen is placed horizontally, the reset device pushes the counterweight to move in the second direction relative to the housing, thereby driving the pen core to move in the second direction relative to the housing through the transmission assembly, thereby causing the pen tip to retract from the pen tip hole.

2. The automatic reset pen according to claim 1, characterized in that: The resetting device is an elastic member or a magnetic component.

3. The automatic reset pen according to claim 2, characterized in that: The elastic member is a spring sleeved outside the pen core.

4. The automatic reset pen according to claim 2, characterized in that: The counterweight is cylindrical and can be slidably sleeved outside the pen core. The transmission assembly, the counterweight and the reset device are sequentially connected along the first direction.

5. The automatic reset pen according to claim 4, characterized in that: The automatic reset pen also includes a buffer component, which is connected to the counterweight and the transmission assembly respectively.

6. The automatic reset pen according to claim 5, characterized in that: The buffer member comprises a spiral structure sleeved outside the pen core, and the buffer member is arranged at one end of the counterweight away from the resetting device.

7. The automatic reset pen according to claim 6, characterized in that: The buffer component further comprises a cylindrical mounting structure, wherein the mounting structure is sleeved on an end of the counterweight away from the resetting device, and the buffer component comprising the mounting structure and the spiral structure is an integrally formed plastic component.

8. The automatic reset pen according to any one of claims 1 to 7, characterized in that: A blocking portion is provided on the inner side of the shell; When the automatic reset pen is placed vertically downward and the pen tip is writing, the transmission assembly abuts against the blocking portion, thereby preventing the pen tip from retracting.

9. The automatic reset pen according to claim 8, characterized in that: The transmission assembly comprises a first connecting member, a connecting rod, a rotating member and a second connecting member which are connected in sequence; The first connecting member is arranged at an end of the pen core away from the pen tip, one end of the connecting rod is rotatably connected to the first connecting member, a first end, a second end and a third end are arranged in a peripheral area of ​​the rotating member in sequence, the other end of the connecting rod is rotatably connected to the first end, the second end is rotatably connected to the housing, one end of the second connecting member is rotatably connected to the third end, and the other end of the second connecting member is rotatably connected to the counterweight; When the automatic reset pen is placed vertically downward, the counterweight drives the second connecting member, the rotating member, the connecting rod and the first connecting member to move in sequence, so that the other end of the connecting rod contacts the blocking portion.

10. The automatic reset pen according to claim 9, characterized in that: When the pen tip extends from the pen tip hole, the first end and the third end are respectively located on both sides of a line connecting the second end and one end of the connecting rod.

11. The automatic reset pen according to claim 10, characterized in that: The rotating member is fan-shaped, the first end and the third end are respectively located at two ends of the arc-shaped side of the rotating member, and the second end is located at the angle between two straight sides of the rotating member.

12. The automatic reset pen according to claim 10, characterized in that: The first connecting member is sleeved on an end of the pen core away from the pen tip, and the second connecting member is a metal wire.

13. The automatic reset pen according to claim 10, characterized in that: The automatic reset pen also includes a locking member; The housing is provided with a sliding groove, the locking member is slidably arranged at the sliding groove, and the locking member includes an operating portion located on the outside and a locking portion located on the inside; The locking member can move back and forth between a locking position and an unlocking position along the sliding through slot. When the locking member slides to the locking position, the rotating member is snap-connected with the locking portion, thereby preventing the transmission assembly from moving.

14. The automatic reset pen according to claim 13, characterized in that: The locking portion is provided with a buckle structure, and the rotating member is provided with a buckle matching structure matching the buckle structure; The buckle structure is a buckle convexity, and the buckle matching structure is a buckle slot; or, the buckle structure is a buckle slot, and the buckle matching structure is a buckle convexity.

15. The automatic reset pen according to claim 13, characterized in that: The locking portion is provided with a locking positioning portion and an unlocking positioning portion, and the housing is provided with a locking positioning matching portion matching with the locking positioning portion and an unlocking positioning matching portion matching with the unlocking positioning portion.

16. The automatic reset pen according to claim 15, characterized in that: The locking and positioning portion and the locking and positioning matching portion are both convex ridges; And / or, the unlocking positioning portion and the unlocking positioning matching portion are both convex ridges.

17. The automatic reset pen according to claim 15, characterized in that: The unlocking and positioning part is two bar blocks which are parallel to each other and spaced apart, and the two bar blocks are provided with a first convex point on one side away from each other, and the unlocking and positioning matching part is a card slot, and the inner side wall of the card slot is provided with a second convex point which matches the two first convex points; Alternatively, the locking positioning portion is two bar blocks parallel to each other and spaced apart, and the two bar blocks are each provided with a first protrusion on one side away from each other, and the locking positioning matching portion is a slot, and the inner side wall of the slot is provided with a second protrusion matching the two first protrusions.

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