KR100669364B1 - Capless retractable marking pen - Google Patents

Abstract

The present invention relates to a capless retractable marking pen.

Marking pen without a lid according to the present invention, the elastic restoring force in the direction to close the opening is configured to be provided directly to the cover 40 from the spring (60, 90) can be opened and closed the opening of the sealing member 30 Make sure

Sealing member 30 is a hollow body that is fixed to the nib storage position in the casing 20, the pen nib is inserted from the rear and has an elliptical opening formed at the tip as if the body is cut obliquely in the vertical direction.

The cover 40 is hinged to the sealing member 30 at one side of the opening to open and close the opening, and has an extension 42 extending to the rear side of the hinge portion. When the back surface of the extension is pressed, the lid 40 pivots around the hinge portion to close the opening.

On the back side of the extension part of the cover, springs 60, 90 for pressing the back surface of the extension part are provided.

The marking pen has excellent nib sealing performance at the nib storage position, and the opening and closing structure of the sealing member is simple.

 Marking pen, highlighter, lid, nib, sealing performance

Description

Capless retractable marking pen

1 and 2 is a partial cross-sectional view of a conventional marking pen, Figure 1 shows a state where the nib is placed in the storage position, Figure 2 is a view showing a state where the nib is in the use position.

3 is an exploded perspective view of the marking pen according to the first embodiment of the present invention.

4 is a cross-sectional view of the casing taken along the line AA ′ of FIG. 3.

5 is a view showing an assembly structure of the marking pen shown in FIG.

6A and 6B are assembled views of the sealing member shown in FIG. 3.

7A and 7B are views illustrating a state in which a spring is assembled to the sealing member shown in FIG. 6B.

8 and 9 are partial cross-sectional views of the marking pen according to the first embodiment of the present invention. FIG. 8 shows a state where the nib is in a storage position, and FIG. 9 shows a state where the nib is in a use position. .

10 is a partial assembly view of the marking pen according to the second embodiment of the present invention.

11 and 12 are views illustrating a state in which the marking pen shown in FIG. 10 is assembled, and FIG. 11 is a view showing a state where a pen nib is placed in a storage position, and FIG. 12 is a view showing a state where the nib is in a used position. Drawing.

13 is a view showing another embodiment of a lid structure according to the present invention.

<Description of the symbols for the main parts of the drawings>

1, 20: casing 2, 52: knob

3, 50: ink cartridge 4, 51: extension tube

5, 52: Nib 6, 60: Spring

10, 30: sealing member 11, 40: cover

12: string fixing member 13: string

21: Stopper 22: Guide

22a: Guide groove 23: Position fixing protrusion

24: through hole 31: rear end of sealing member

32: cover fixing part 33: position fixing groove

34: protrusion 35: inclined surface

41: cover portion 42: extension portion

43: hinge pin 70: insertion hole

71, 81: screw portion 80: stopper

90: auxiliary spring

The present invention relates to a marking pen such as a highlighter, and in particular, a capless retractable marking pen which does not require a lid to be sealed from the outside by moving the nib to a storage position inside the casing when the marking pen is not used. It is about.

In general, a marking pen is a writing instrument configured to penetrate ink to a nib by capillary action. In order to prevent the nib from drying out or getting dirty, a marking pen must be covered after use.

However, such a lid is often lost, and there is an inconvenience of opening and closing the lid every time it is used and stored, and recently, a marking pen has been developed that does not need a lid separately.

1 and 2 show an example of a marking pen that does not require a lid, in order to allow the nib to move between a use position (see FIG. 2) and a storage position inside the casing (see FIG. 1). (3) A separate operating means (not shown in detail) is provided at the rear, and the spring 6 is installed in front of the ink cartridge (3). Various techniques related to the actuation means are already well known in the text, and therefore, detailed descriptions thereof will be omitted.

Hereinafter, the pen tip sealing structure will be described.

1 is a view showing a state in which the nib is placed in the storage position, as shown in this, when not using the marking pen nib (5) is accommodated inside the sealing member 10, the tip of the sealing member 10 The opening is closed by the lid 11. At this time, the spring 6 is slightly compressed, and the string 13 is in tension by the elastic restoring force of the spring. This string 13 restrains the lid 11 to maintain the opening closed state.

FIG. 2 is a view showing a state where the pen nib is in a use position. When the knob 2 of the marking pen shown in FIG. 1 is pressed once, the ink cartridge 3 moves to the front side, and the nib 5 is casing 1. ) Is taken out. At this time, the string 13 that restrains the lid 11 is loosened, and the lid 11 is pushed clockwise by the pen tip 5 moving forward.

Meanwhile, when the knob 2 of the marking pen shown in FIG. 2 is pressed again, the ink cartridge 3 is moved backward by the elastic restoring force of the spring 6 so that the pen nib 5 is inside the sealing member 10. Is housed in. At this time, the lid 11 of the sealing member 10 is automatically closed by the string 13 is tightened.

As described above, the conventional marking pen is configured such that the elastic restoring force of the spring 6 is provided to the cover 11 via the string 13, and thus, the assembly of the marking pen is inconvenient due to the string. That is, when assembling the string, the center portion of the string 13 is fitted into the fixing groove 11a formed on the front surface of the cover 11, and both ends of the string 13 are formed on both sides of the circumferential surface of the string fixing member 12, respectively. It should be inserted into the fixing groove 12a and fixed, but the assembling work is quite cumbersome.

In addition, as the number of times of use of the marking pen increases, the tension and / or the string fixing state of the string 6 itself is loosened, thereby deteriorating the nib sealing performance of the sealing member 10.

The present invention has been proposed to solve such a problem, and an object of the present invention is to provide a marking pen having a superior nib sealing performance at a nib storage position and requiring a simpler opening and closing structure of a sealing member.

It is also an object of the present invention to provide a marking pen that does not require a simple lid to be assembled.

The lid-free marking pen according to the present invention for solving the above problems is configured such that the elastic restoring force in the direction of closing the opening is provided directly from the spring to the lid.

The sealing member is a hollow body which is fixed at the nib storage position in the casing, and the pen nib is inserted from the rear side, and the tip is formed in a shape as if the body is cut obliquely in the vertical direction and has an oval opening. By inclining the shape of the tip of the sealing member as described above, it is possible to prevent the problem that the extension part described later may interfere with the inner wall of the casing or the opening and closing of the opening may be caused by the spring. In addition, the distance that the lid rotates during the opening and closing operation is shortened, so that the opening and closing operation of the lid is quicker, and the time for the nib to contact the lid during the opening and closing operation is shortened. When the sealing member tip has a vertical cross section, an auxiliary spring as described later cannot be used.

The cover is hinged to the sealing member at one side of the opening, and includes a cover part for opening and closing the opening, and an extension part integrally formed with the cover part and extending to the rear side of the hinge part of the cover part. When the back of the extension of the cover is pressed, the cover closes the opening by pivoting the hinge portion. Here, the hinge portion refers to a hinge axis portion, for example, the portion where the hinge pin is coupled corresponds to the hinge portion.

On the other hand, so that the opening and closing operation of the cover is smoothly made, the cover portion and the extension portion are bent at an obtuse angle with respect to the hinge portion, and the back surface of the extension portion is preferably rounded.

On the rear side of the extension part of the cover, a spring is urged to press the back of the extension part. The cover tends to be pressed directly by the spring to keep the opening closed.

The spring is provided in front of the ink cartridge, the juice spring that provides the elastic restoring force to move the ink cartridge to the rear can be used as it is. However, the tip of the juice spring should be installed to be in close contact with the back of the extension part of the cover.

On the other hand, the spring is installed on the body of the sealing member, the front end may be an auxiliary spring in close contact with the back of the extension portion to provide the cover with elastic restoring force in the direction of closing the opening.

According to the opening and closing structure of the sealing member, since the elastic restoring force in the direction for closing the opening is directly provided from the spring to the lid, the opening and closing operation structure is simplified and the opening sealing performance is improved. In particular, in the case of the former marking pen which is configured such that the juice spring controls both the penetrating operation of the pen nib and the opening / closing operation of the lid, its configuration and assembly are simple.

On the other hand, for the smooth assembly and operation of the marking pen having the above sealing structure, the following structure may be provided on the inner wall surface of the sealing member and the front end of the casing.

A through hole may be formed in the casing of the portion where the rear end of the extension portion faces in the opening closed state. The through hole prevents the rear end portion of the extension portion protruding out of the sealing member during the opening and closing operation from interfering with the inner wall surface of the extension casing. In the case of precisely adjusting the separation distance between the rear end of the extension part and the casing, the through hole may not be required, but the presence of the through hole reduces the burden on the dimensional accuracy of the part.

An inclined surface or a groove portion may be formed in a sealing member of a portion where the rear surface of the extension portion faces in the opening state. This is to prevent a problem that the extension part which is folded backward during the opening operation of the cover may interfere with the sealing member and the opening may not be completely opened. In the case of precisely controlling the shape and the hinged position of the extension, the inclined surface may not be required, but in the case of forming the inclined surface, the burden on the dimensional accuracy of the part is reduced.

A protruding portion protrudes from the front end portion of the sealing member, and correspondingly, a guide groove may be formed in the casing longitudinal direction on the inner wall of the casing end portion. This is to allow the protrusion of the sealing member to be guided by the guide groove when assembling the marking pen, so that the sealing member can be fixed to the casing tip in a predetermined posture. In particular, when assembling the marking pen, the protrusions and the guide grooves are required in order to ensure that the rear end always faces the through hole.

A pair of cover fixing parts may be formed on both sides of the front end portion of the sealing member so that the extension part may be fitted and hinged, and a stopper may protrude on both sides of the inner wall surface of the casing front end. The cover fixing part is fixed by the stopper when assembling the marking pen.

In addition, the rear end of the stopper is formed with a positioning protrusion extending in the casing longitudinal direction, a pair of cover fixing portion may be formed with a position fixing groove matching the position fixing projection when assembling the marking pen. This is to allow the sealing member to be accurately positioned at a predetermined position inside the casing.

The sealing member is a hard plastic material, and the cover may be a soft rubber material. In addition, the lid back side of the cover may be formed convexly toward the opening. This is to improve the sealing performance of the opening of the cover.

Hereinafter, with reference to the accompanying drawings looks at with respect to the marking pen without a lid according to a preferred embodiment of the present invention.

As can be seen in FIG. 3, the marking pen includes a casing 20, a sealing member 30 for sealing the nib 52 from the outside, and an ink cartridge assembly 50 for supplying ink to the nib 52. , 51, 52, and an actuating means 53, 54 for allowing the nib 52 to move between a use position and a storage position inside the casing, and a spring for adjusting the movement of the ink cartridge assembly together with the actuating means ( 60).

3 and 5, the ink cartridge assembly includes an ink cartridge 50 for storing ink, an extension tube 51 extending at the tip of the ink cartridge, and a nib 52 provided at the tip of the extension tube. It is composed. The spring 60 and the sealing member 30 are coupled together at the front of the ink cartridge assembly inserted into the casing 20 when assembling the marking pen.

As shown in FIG. 3, the actuating means includes a knob 53 provided behind the casing 20 and a medium 54 disposed in front of the knob. The specific structure is omitted, and it will be appreciated that various types of well-known techniques can be applied to the operation means according to the present invention.

3 to 5, the casing 20 is a hollow cylindrical body, and when the marking pen is assembled, the sub casing 20a is press-fitted into the rear end of the casing 20. A stopper 21, a guide groove 22a, and a position fixing protrusion 23 for fixing the sealing member 30 to the pen tip storage position are formed at the front end of the casing 20.

The stopper 21 is a protrusion formed on both sides of the inner wall surface of the front end of the casing 20, and the sealing member 30 inserted into the front side from the rear side of the casing 2 is locked by the stopper 21.

The guide groove 22a is a groove formed along the longitudinal direction of the casing 20 on the inner wall surface of the front end of the casing 20. The sealing member 30 stores the nib 52 along the guide groove 22a when assembling the marking pen. You are guided to the location. In the embodiment, the guide groove 22a is configured by extending the casing 20 along the longitudinal direction of the pair of guides 22 protruding from the inner wall of the casing.

The position fixing protrusion 23 is a protrusion formed at the rear end of the stopper 21 and extends to the rear side. The position fixing protrusion 23 guides the sealing member 30 to be positioned at the pen tip storage position when assembling the marking pen.

On the other hand, a through hole 24 is formed under the casing 20 tip. In the marking pen assembly state, as illustrated in FIGS. 8 and 9, the rear end of the extension part 42 of the cover 40, which will be described later, is located in the through hole 24.

Reference numeral 25 is an inlet of the casing 20 to which the nib 52 is mounted.

3 to 5, the cover 40 is installed in front of the sealing member 30 inserted into the casing 20 and fixed to the nib storage position at the tip of the casing 20.

Sealing member 30 is a hollow cylindrical body, the front end is formed in the shape as if the body is cut obliquely in the vertical direction is provided with an oval opening. The cover 40 is installed in the opening. The tip end of the nib 52 and the extension tube 51 is inserted into the rear opening of the sealing member 30. The front side opening of the sealing member 30 is closed by a cover, and the rear side opening is sealed by the extension tube 51. In this description, the openings refer to elliptical openings provided on the sealing member front side.

A pair of cover fixing parts 32 protrude from both ends of the sealing member 30. In particular, the cover fixing portion 32 protrudes outward more than the sealing member 30, so that the tip of the cover fixing portion 32 at the rear end of the stopper 21 provided on the inner wall of the casing 20 when assembling the marking pen. Is interfering. The cover 40 is hinged and fixed by a hinge pin 43 on an upper side of the cover fixing part 32 extending in the vertical direction.

On the other hand, the protruding portion 34 protrudes from the upper end of the sealing member 30, and the position fixing groove 33 extending in the longitudinal direction of the casing 20 is formed on the outer surface of the cover fixing portion 32. The protrusion 34 and the position fixing groove 33 are respectively matched to the guide groove 22a and the position fixing protrusion 23 provided on the inner wall surface of the tip of the casing 20 when assembling the marking pen.

The cover 40 is hinged to the lower side of the sealing member 30 via the hinge pin 43, and is formed integrally with the cover part 41 for opening and closing the opening along the movement of the nib 52. The cover portion 41 extends to the rear side of the hinge portion, and its rear end is constituted by an extension portion 42 protruding outside the sealing member.

The extension part 42 is fitted between the cover fixing part 32 and then coupled to the sealing member 30 by a hinge pin 43. In a state where the extension part 42 is coupled to the sealing member 30, the rear end of the extension part 42 protrudes downward from the sealing member 30. That is, when pressing the back surface of the extension part 42 assembled to the cover fixing part 32, the cover part 41 is rotated clockwise about the hinge pin 43. As shown in FIG.

On the other hand, since the extension 42 is hinged to the sealing member 30 so that the rear end thereof protrudes lower than the sealing member 30, the rear end of the extension 42 in the marking pen assembly process, as shown in FIG. Likewise, interference may occur with the inner wall surface of the casing 20. When the diameter of the casing 20 is increased, this problem can be prevented. However, since the consumer's preference for the marking pen having a small diameter of the casing 20 is high, there is a limitation in increasing the diameter of the casing 20.

In a state where the sealing member 30 is fixed in the pen nib storage position, the rear end of the extension part 42 is disposed in the through hole 24 of the casing 20. The through hole 24 serves to prevent the rear end of the extension part 42 from interfering with the inner wall of the casing 20 in the process of rotating the cover 40.

6A and 6B, an inclined surface 35 is formed on the sealing member 30 at the portion facing the rear surface of the extension part 42 in the opening state. The inclined surface 35 prevents the cover 40 which rotates in the clockwise direction when the opening is opened, interferes with the sealing member 30, and the opening is not completely opened. Due to the inclined surface 35, the sealing member 30 should not be drilled.

In addition, in order to reduce interference between the extension part 42 and the sealing member 30, it is preferable that the back surface of the extension part 42 is convexly rounded.

As can be seen in Figures 8 and 9, the spring 60 is installed between the ink cartridge 50 and the extension portion 42 of the cover, the tip of the spring 60 is on the back of the extension portion 42 It comes in direct contact.

FIG. 7A is a view showing a state in which a cover in which the back of the extension part 42 is pressed by the spring 60 is closing the opening, and FIG. 7B is a front end portion of the spring 60 as the cover is turned clockwise. It is a figure which shows the state to elastically deform. As can be seen in these figures, the cover is installed obliquely at the tip of the sealing member, so that the amount of deformation of the spring 60 by the extension part 42 of the cover during opening and closing operation is minimal.

As can be seen in FIG. 8, the sealing member 30 in which the nib is accommodated is sealed by the lid 40. At this time, the spring 51 is slightly compressed and is in a state of providing an elastic restoring force to the rear surface of the extension part 42.

As can be seen in FIG. 9, when the knob 53 of the marking pen shown in FIG. 8 is pressed once, the nib 52 pushes out the cover part 41 of the sealing member and is exposed to the outside of the casing 20. At this time, the material and elastic force of the spring 60 should be appropriately adjusted so that the operation of the cover rotated counterclockwise by the spring 60 being compressed as the pen nib 52 moves forward is not hindered. The spring should be made of soft material.

When the knob 53 of the marking pen shown in FIG. 9 is pressed again, the ink cartridge 50 is moved backward by the elastic restoring force of the spring 60 so that the nib 5 is stored inside the sealing member 30. do. At this time, the cover 11 of the sealing member 10 is automatically closed by the elastic restoring force of the compressed spring (60).

As can be seen in Figures 10 to 12, as a spring for adjusting the opening and closing operation of the cover, a separate auxiliary spring 90 can be used, unlike in the previous embodiment.

The auxiliary spring 90 is to be installed so as to press the back of the extension portion 42, it is preferable to be installed on the inclined surface 35 of the sealing member (30). In order to install the auxiliary spring 90, the lower body of the sealing member 30 is provided with an insertion hole 70 formed in the longitudinal direction of the casing (not shown) and the screw portion 71 is formed at the rear end. The auxiliary spring 90 assembled in the insertion hole 70 has its front end exposed to the front side of the insertion hole 70 so as to be in close contact with the rear surface of the extension part 42. In the opening closure state, the auxiliary spring 90 should be slightly compressed.

The rear of the insertion hole 70 into which the auxiliary spring 90 is inserted is closed by a stopper 80, and the rear end of the auxiliary spring 90 is supported by a stopper 80. The outer surface of the stopper 80 is formed with a threaded portion 81 corresponding to the threaded portion 71 of the insertion hole 70, the tool insertion groove 82 is formed at the rear end.

On the other hand, the extension part 42 of the cover is formed integrally with the cover part 41 and should extend to the rear side of the hinge portion 43 of the cover part, but the rear end thereof does not need to protrude to the outside of the goji sealing member. Unlike in the previous embodiment, because the auxiliary spring 90 installed in the sealing member 30 is configured to press the back of the extension portion 42.

The juice spring 60 is provided between the ink cartridge 50 and the sealing member 30 to provide an elastic restoring force for moving the ink cartridge 30 backward.

In the above-described marking pen, the sealing member 30 may be made of a hard plastic material, and the cover 40 may be made of a soft rubber material to improve the sealing performance of the opening.

Furthermore, as shown in FIG. 13, a curved portion 44 protruding convexly toward the opening of the sealing member 30 may be formed on the rear surface of the cover portion 41. At this time, the size and shape of the curved portion 44 are appropriately selected in consideration of the adhesion to the opening of the lid portion 41.

Marking pens having the structure as described above, since the spring presses the cover directly to close the opening, the nib sealing performance of the sealing member is excellent, and the nib sealing state of the sealing member is stable regardless of the number of times the marking pen is used. Can be maintained.

In addition, the opening and closing structure of the sealing member and the assembly of the marking pen are simple.

Claims (9)

An ink cartridge assembly installed inside the casing, the tip of the extension tube extending from the ink cartridge, and an ink cartridge assembly provided with the pen tip, and the knob connected to the rear of the ink cartridge presses the pen nib in the casing or out of the casing. In the marking pen which does not need a lid having an operating means for being ejected and a spring for providing an elastic restoring force to the ink cartridge in front of the ink cartridge, A hollow body installed inside the casing to seal the nib stored in the casing, the nib is inserted from the rear, and the tip is formed in a shape in which the body is cut obliquely and has an oval opening; A cover hinged to the sealing member at one side of the opening to open and close the opening, the cover having an extension part extending to a rear side of the hinge part and having a rear end protruding to the outside of the sealing member, The spring is a lid-free marking pen, characterized in that the front end is in close contact with the back surface of the extension so that the elastic restoring force in the direction of closing the opening is provided to the cover. An ink cartridge assembly installed inside the casing, the tip of the extension tube extending from the ink cartridge, and an ink cartridge assembly provided with the pen tip, and the knob connected to the rear of the ink cartridge presses the pen nib in the casing or out of the casing. In the marking pen which does not require a lid having an operating means for being ejected and a juice spring for providing an elastic restoring force to the ink cartridge in front of the ink cartridge, A hollow body installed inside the casing to seal the nib stored in the casing, the nib is inserted from the rear, and the tip is formed in a shape in which the body is cut obliquely and has an oval opening; A lid hinged to the sealing member at one side of the opening to open and close the opening, the cover having an extension extending to the rear side of the hinge part; And The auxiliary spring is installed on the body of the sealing member, the front end is in close contact with the back of the extension portion so that the elastic restoring force in the direction of closing the opening is provided to the cover; Marking pen. The method according to claim 1 or 2, Marking pens do not need a lid, characterized in that the through-hole is formed in the casing of the portion facing the rear end of the extension in the opening closed state. The method according to claim 1 or 2, Marking pens do not need a lid, characterized in that the inclined surface is formed in the sealing member of the portion facing the rear surface of the extension in the opening opening, so that the extension does not interfere with the sealing member when the cover is rotated. The method according to claim 1 or 2, A projection pen is formed on an upper end of the sealing member, and a guide groove for guiding the projection when assembling the marking pen is formed in the casing length direction on the inner wall of the casing tip. The method according to claim 1 or 2, A pair of cover fixing parts are formed on both sides of the front end of the sealing member so that the extension part of the cover is fitted and fixed, and a stopper is formed on both sides of the inner wall of the casing tip part to stop the cover fixing part when assembling the marking pen. Marking pens do not need a lid, characterized in that. The method of claim 6, The rear end of the stopper is formed with a position fixing protrusion extending in the casing length direction, a pair of cover fixing parts need a lid, characterized in that the position fixing groove which can be matched to the position fixing protrusion when the marking pen is assembled No marking pen. The method of claim 1, The sealing member is a hard plastic material, the lid is a marking pen that does not need a lid, characterized in that the soft rubber material. The method of claim 1, The lid of the lid portion is not required, characterized in that the lid is formed convexly toward the opening to improve the sealing performance.

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