TW202413134A - Pen - Google Patents

Abstract

The present invention is relative to a pen, and the pen comprises: a barrel, a head cover, a spiral member, a pen refill, a movable member and a tail cover. The barrel includes a first opening, a second opening and a channel; the tip is connected to the first opening and includes a through-hole; the spiral member is detachably assembled inside the channel and a spiral track is formed by the spiral member; the pen refill is assembled inside the tip and the barrel as well as includes a tip and a tube; the movable member is movably assembled in the spiral member, and a spiral groove that matching the spiral track is formed on the outer surface of the movable member. The movable member is capable of being rotated along the spiral track to move a linear path, so that a demanded distance is formed between the movable member and the through-hole for corresponding with a length of the pen refill. Thereby, the pen refill is positioned between the movable member and the head cover, and the tail cover is connected in the second opening for blocking the spiral member, so that the spiral member, the pen refill and the movable member are collectively clamped by the head cover and the tail cover.

Description

Pen

The invention relates to a pen capable of adjusting the distance between a movable part and a pen hole, in particular to a pen capable of being used in conjunction with pen cores of various lengths.

Pens are commonly used tools in daily life and can be classified into water-based ballpoint pens, oil-based ballpoint pens, pencils, automatic pencils, magic markers, whiteboard pens, colored pens, crayons, etc.

The pen is composed of at least a barrel and a refill. The barrel not only accommodates the refill inside, but also allows the user to hold the refill conveniently. The pigment in the refill can be classified into various materials such as water-based ink, oil-based ink, solid pigment core, etc.

However, each type of pen has a fixed length of pen barrel and a refill that matches the pen barrel. Therefore, when a user wants to replace a new refill, he or she can only choose a refill of the same style as the original refill, and cannot replace a refill of a different length from the original refill, which is inconvenient and boring.

In addition, with the rise of environmental awareness, reuse and reduction of resource waste have become a trend. When a pen falls on the ground and the pen barrel is damaged, the pen cannot be used for writing, and the same pen barrel must be purchased again to replace it before it can be used again, which is a waste. Moreover, in order to design refills with different functions, each refill has a different diameter and length, so different types of pen barrels are needed to match the refills, so that users must carry multiple pens at the same time, and cannot carry only one pen and multiple refills, and replace different refills in the same pen barrel to produce different uses, thereby reducing the volume of the pen and achieving the purpose of reuse.

The main purpose of the present invention is to provide a pen that can be used with various lengths of pen cores. The pen can not only be adjusted to match the length of the pen core, but also fix the pen core so that the pen core can be against the pen hole, and then the pen core can contact the paper material to produce the function of writing.

The secondary purpose of the present invention is to improve the structural form of the coil spring so that when the coil spring is clamped, the coil spring can be compressed and deformed, thereby making it impossible for the movable part assembled in the spiral body to move relative to the coil spring.

To achieve the above-mentioned object, the present invention provides a pen, which is mainly composed of a pen body, a front cover, a spiral body, a pen core, a movable part and a rear cover.

The pen body has a channel forming a first opening and a second opening.

The front cover is connected to the first opening of the pen body and has a pen hole with a diameter smaller than that of the first opening. In a first preferred embodiment, the front cover includes a ring portion and a tapered portion, and the ring portion is connected between the pen body and the tapered portion.

The spiral body can be detachably assembled inside the channel to form a spiral track, and one end of the spiral body contacts the rear cover.

In a first preferred embodiment, the spiral body is configured as a compressible coil spring, and the spiral track is constructed by an original pitch of the coil spring. When the coil spring is clamped by the back cover and the movable part, a portion of the length of the coil spring will be compressed from the original pitch to a compressed pitch, so that the movable part cannot move relative to the coil spring.

However, the pen core is assembled inside the front cover and the pen body, and has a head portion that abuts against the pen hole and a tube portion that extends to the center of the spiral body, wherein the head portion of the pen core will be kept in contact with the front cover by the movable member, so that the head portion cannot be separated from the pen hole.

The movable member can be movably assembled on the spiral body, and an outer surface of the movable member has a spiral groove matching the spiral track, and the movable member can be rotated along the spiral track to perform a linear movement, so that a set distance is formed between the movable member and the pen hole to match a length of the pen core, so that the movable member is against the tube of the pen core, wherein an outer edge contour of the movable member matches an outer peripheral contour of the spiral body, so that the user can grasp the outer surface to rotate the movable member.

The rear cover is detachably connected to the second opening of the pen body to block the spiral body, so that the spiral body, the pen core and the movable part are clamped by the front cover and the rear cover.

The feature of the present invention is that the movable part of the pen can rotate along a spiral track so that a set distance is formed between the movable part and the pen hole to match the length of the pen core, thereby the tube of the pen core abuts against the movable part and the head of the pen core abuts against the pen hole, wherein the head of the pen core will be kept in contact with the front cover by the movable part so that the head cannot be separated from the pen hole, thereby eliminating the need to press the head of the pen core to protrude from the front cover to contact the paper material for writing.

In order to facilitate a deeper and more detailed understanding of the structure, use and features of the present invention, a preferred embodiment is provided and described in detail with reference to the drawings as follows:

1 and 2 , the pen 1 of the present invention is mainly composed of a pen body 10, a front cover 20, a spiral body 30, a pen core 40, a movable member 50 and a rear cover 60, wherein an axial direction D1 is formed from the front cover 20 to the rear cover 60.

As shown in FIGS. 3 , 4 and 5 , the pen body 10 is hollow and has a channel 11. Two opposite ends of the channel 11 form a first opening 12 and a second opening 13 respectively. The channel 11 further has a first inner diameter section 14, a second inner diameter section 15 and a stopper 16 formed between the first inner diameter section 14 and the second inner diameter section 15. The first inner diameter section 14 is connected to the second inner diameter section 15, and the diameter of the first inner diameter section 14 is smaller than that of the second inner diameter section 15. The first inner diameter section 14 has a first internal thread 17 and is connected to the first opening 12, and the second inner diameter section 15 is connected to the second opening 13.

Referring to FIG. 3, FIG. 4 and FIG. 8, in a first preferred embodiment, the front cover 20 is connected to the first opening 12 of the pen body 10 and has a ring portion 21 and a tapered portion 22. The ring portion 22 is connected between the pen body 10 and the tapered portion 22. The ring portion 21 has a first upper thread segment 211 and an annular protrusion 212 connected to the first upper thread segment 211. The first upper thread segment 211 enters the first opening 12 of the pen body 10 along the axial direction D1. An internal thread 17, and the annular protrusion 212 has a central protrusion 213 extending downward from the annular protrusion 212, and the central protrusion 213 has a central opening 214, and a first lower thread section 215 of the central opening 214 is connected to a top end 221 of the tapered portion 22, and a bottom end 222 of the tapered portion 22 has a pen hole 23 with a diameter smaller than the first opening 12, so that the annular portion 21 is connected between the pen body 10 and the tapered portion 22.

Please refer to Figures 2, 3, 4 and 6. The spiral body 30 can be detachably assembled inside the channel 11 and constructs a spiral track 31 along the axial direction D1. One end of the spiral body 30 does not contact the abutment portion 16, and the other end of the spiral body 30 contacts the rear cover 60, so that the spiral track 31 is confined between the front cover 20 and the rear cover 60, wherein an outer edge profile 51 of the movable part 50 matches an outer peripheral profile 32 of the spiral body 30. However, in another embodiment, one end of the spiral body 30 contacts the abutment portion 16 and the remaining end contacts the rear cover 60.

In addition, in the first preferred embodiment, the spiral body 30 is set as a compressible coil spring 33, and the spiral track 31 is constructed by an original pitch of the coil spring 33. The coil spring 33 has an inclined section 34 and two horizontal sections 35, and the two opposite ends of the inclined section 34 are respectively connected to the horizontal sections 35, so that the horizontal sections 35 contact the back cover 60 along the axial direction D1.

Please refer to FIG. 2 , FIG. 3 , FIG. 4 and FIG. 7 . In the first preferred embodiment, the pen core 40 is assembled inside the front cover 20 and the pen body 10 . The pen core 40 has a head 41 that abuts against the pen hole 23 and a tube 42 that extends to the center of the spiral body 30 . The diameter of the head 41 is smaller than that of the tube 42 . The diameter of the tube 42 is smaller than that of a top surface 52 of the movable member 50 . However, a pigment is filled in the tube 42 , and the pigment can move from the tube 42 to the head 41 . There is no limit to the composition or color of the pigment. The pigment can be oily, water-based, blue, red, etc.

Please refer to Figures 2, 3, 4 and 6. An outer surface 53 of the movable member 50 has a spiral groove 54 that matches the spiral track 31. The spiral groove 54 forms a closed ring 55 to be disposed on the movable member 50, so that the movable member 50 can be movably assembled on the spiral body 30.

Please refer to FIG. 3 and FIG. 4 , a bottom end 61 of the rear cover 60 contacts a top end 36 of the spiral track 31, so that a portion of the rear cover 60 is disposed inside the pen body 10, and the remaining portion of the rear cover 60 protrudes from the pen body 10. In addition, the rear cover 60 can be detachably connected to the second opening 13 of the pen body 10 to block the spiral body 30, so that the spiral body 30, the pen core 40 and the movable member 50 are clamped by the front cover 20 and the rear cover 60.

Please refer to FIG. 2, FIG. 3, FIG. 4 and FIG. 6. In the first preferred embodiment, the pen core 40 is disposed inside the coil spring 33. However, by a user grasping the outer surface 53 of the movable member 50 to rotate the movable member 50, the movable member 50 can be rotated along the spiral track 31 from the horizontal section 35 of the coil spring 33 to the inclined section 34 to perform a linear movement. The movable member 50 moves from a position not entering the spiral track 31 to entering the spiral track 31, so that a set distance is formed between the movable member 50 and the pen hole 23 to match a length of the pen core 40. By the tube 42 of the pen core 40 entering into a receiving space of the movable member 50, The top surface 52 of the movable member 50 is pressed against the tube 42 of the refill 40, so that the head 41 of the refill 40 is kept in contact with the front cover 20 by the movable member 50, and a nib section 43 of the head 41 protrudes from the pen hole 23, so that the head 41 cannot be separated from the pen hole 23. At the same time, the rear cover 60 is snapped onto the pen body 10. The second opening 13 of the rear cover 60 and the movable member 50 allows a portion of the length of the coil spring 33 to be compressed from the original pitch to a compressed pitch, and the movable member 50 cannot rotate along the compressed pitch to generate the linear movement, thereby the movable member 50 cannot move relative to the coil spring 33.

The oblique section 34 provides the movable member 50 with the linear movement, while the horizontal sections 35 do not provide the movable member 50 with the linear movement, so that the horizontal sections 35 can close the spiral track 31 and restrict the movable member 50 between the horizontal sections 35, so that the movable member 50 cannot separate the coil spring 33.

Please refer to FIG. 2 , FIG. 3 and FIG. 4 . When the refill 40 is to be replaced, the rear cover 60 must be removed from the pen body 10 first, so that the rear cover 60 is far away from the second opening 13 . Then, the spiral body 30 and the movable member 50 are first passed through the second opening 13 from the channel 11 to leave the pen body 10 . Then, the refill 40 can pass through the second opening 13 from the channel 11 to leave the pen body 10 .

Please refer to FIG. 9 . In the second preferred embodiment, the difference from the first preferred embodiment is that an extension tube 70 is provided. The other structural forms are the same as those of the first preferred embodiment, and thus will not be described again in this embodiment. As shown in the figure, when the length of the pen core 40 is greater than the sum of the first inner diameter section 14 and the second inner diameter section 15 of the pen body 10, the extension tube 70 is connected to the front cover 20 and the pen body 10. The pen body 10 is provided with the extension tube 70 so that the total length of the pen body 10 and the extension tube 70 is greater than or equal to the length of the pen core 40, and the movable part 50, the spiral body 30 and the pen core 40 are covered by the pen body 10 and the front cover 20. In addition, an outer edge of the extension tube 70 is the same as an outer periphery of the pen body 10, so that the extension tube 70 and the pen body 10 form a continuous surface together.

The coil spring 33 in the first and second preferred embodiments described above is only for the convenience of illustration, that is, the spiral body 30 may also adopt a rigid spiral member that cannot be deformed, so that the rigid spiral member can be detachably assembled inside the channel 11. Since the rigid spiral member cannot be deformed to change its length, the movable member 50 must move to a specified position of the rigid spiral member in accordance with the length of the pen core 40, and then the rear cover 60 can be smoothly combined with the pen body 10. Therefore, the original pitch of the rigid spiral member will be maintained at the original size, and the compression pitch of the coil spring 33 will not be generated.

1: pen 10: pen body 11: channel 12: first opening 13: second opening 14: first inner diameter section 15: second inner diameter section 16: stopper 17: first inner thread 20: front cover 21: ring 211: first upper thread section 212: annular protrusion 213: central protrusion 214: central opening 215: first lower thread section 22: tapered section 221: top end 222: bottom end 23: pen hole 30: spiral body 31: spiral track 32: outer peripheral contour 33: spiral spring 34: oblique section 35: horizontal section 36: top end 40: refill 41: head 42: tube 43: nib section 50: movable part 51: outer edge contour 52: top surface 53: outer surface 54: spiral groove 55: ring 56: storage space 60: back cover 61: bottom end 70: extension tube D1: axial direction

Figure 1 is a schematic diagram of the pen of the present invention in the first preferred embodiment; Figure 2 is a schematic diagram of the combination of the front cover, spiral body, pen core and movable part in the first preferred embodiment; Figure 3 is a decomposition diagram of the pen of the present invention in the first preferred embodiment; Figure 4 is a cross-sectional view of the pen of the present invention in the first preferred embodiment; Figure 5 is a cross-sectional view of the pen body in the first preferred embodiment; Figure 6 is a schematic diagram of the spiral body and movable part in the first preferred embodiment; Figure 7 is a schematic diagram of the pen core in the first preferred embodiment; Figure 8 is a schematic diagram of the front cover in the first preferred embodiment; and Figure 9 is a schematic diagram of the pen of the present invention in the second preferred embodiment.

1:Pen

10: Pen body

11: Channel

12: First opening

13: Second opening

14: First inner diameter segment

15: Second inner diameter segment

16: Card support

17: First internal thread

20: Front cover

21: Environmental Protection Department

211: First upper thread section

212: Ring-shaped protrusion

213: Central convex block

214: Central opening

215: First lower thread section

22: Tapered part

221: Top

222: bottom

23: Pen hole

30: Spirochete

31:Spiral track

32: Peripheral contour

33: Coil spring

40: Pen refill

41: Head

42: Management Department

43: Pen tip section

50:Active parts

51: Outer edge outline

52: Top

53: Outer surface

54: Spiral groove

56: Storage space

60: Back cover

61: Bottom

D1: Axis direction

Claims (3)

A pen comprises: A pen body having a channel forming a first opening and a second opening; A front cover connected to the first opening of the pen body and having a pen hole with a diameter smaller than the first opening; A spiral body detachably assembled inside the channel and forming a spiral track; A pen core assembled inside the front cover and the pen body, having a head abutting against the pen hole and a tube extending to the center of the spiral body; A movable member movably assembled on the spiral body, an outer surface of the movable member having a spiral groove matching the spiral track, and the movable member can be rotated along the spiral track to perform a linear movement, so that a set distance is formed between the movable member and the pen hole to match a length of the pen core, so that the movable member abuts against the tube of the pen core; and A rear cover is detachably connected to the second opening of the pen body to block the spiral body, so that the spiral body, the pen core and the movable part are clamped by the front cover and the rear cover; wherein the head of the pen core will be kept in contact with the front cover by the movable part, so that the head cannot be separated from the pen hole. A pen as described in claim 1, wherein the spiral body is configured as a compressible coil spring, and the spiral track is constructed by an original pitch of the coil spring; when the coil spring is clamped by the back cover and the movable part, a portion of the length of the coil spring will be compressed from the original pitch to a compressed pitch, so that the movable part cannot move relative to the coil spring. A pen as described in claim 1, wherein an outer edge contour of the movable part matches an outer peripheral contour of the spiral body, making it convenient for the user to grasp the outer surface to rotate the movable part.

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