JP4532859B2 - Small ballpoint pen - Google Patents

Description

  The present invention relates to a small ball-point pen, and more particularly to a small ball-point pen that can be easily attached to and detached from a mobile phone strap, a neck strap, or the like and is easy to write.

As a conventional small ballpoint pen, for example, a small ballpoint pen 70 including a main body 71 and a cap portion 72 as shown in FIGS. 8A and 8B is known.
The main body 71 includes a shaft cylinder 71a having a ballpoint pen shaft in which ink is stored and a lid 71d. The cap portion 72 includes a cylindrical body 72a having a hollow portion 72d, a ring 72c for attaching the strap 73, and a clip 72e. A female engagement portion 71b is formed on the side surface of the end portion of the main body 71, and a male engagement portion 72b is formed on the cap portion 72, whereby the main body 71 and the cap portion 72 can be attached and detached. Has been.

  FIG. 8A shows a state where the nib 71 c of the small ballpoint pen 70 is housed in the cap portion 72. That is, the main body 71 is inserted into the hollow portion 72d of the cap portion 72 from the pen tip 71c side, and the male engagement portion 72b and the female engagement portion 71b are fitted. And the strap 73 is attached to the ring 72c, for example, it is hung by a bag, a mobile phone, etc., and is carried.

FIG. 8B shows the usage state of the small ballpoint pen 70. That is, the main body 71 is removed from the cap portion 72, inserted into the hollow portion 72d from the lid 71d side, and stored again, and the male engagement portion 72b and the female engagement portion 71b are fitted to each other to be used. It becomes.
As a result, the total length of the small ballpoint pen 70 can be shortened when not used, and can be increased when used. Therefore, when it is not used, it becomes a size that does not get in the way, and when it is used, it can have a length suitable for use.

  Further, as a conventional small ballpoint pen, there is a small ballpoint pen 80 as shown in FIGS. The small ballpoint pen 80 is generally configured to include a cylindrical case portion 81, a lid case portion 82, and a pen shaft portion 83. In this small ballpoint pen 80, the lid case portion 82 and the pen shaft 83 are connected by a spring 82a, and the cylindrical case portion 81 and the lid are in a state where the pen shaft 83 is housed in the cylindrical case portion 81. The body case part 82 is fitted.

The cylindrical case portion 81 is provided with a female screw portion 81a on the hollow inner side, and has a protruding hole 81b for allowing the pen tip 83a to protrude. The lid case 82 is fitted to the end of the cylindrical case 81 opposite to the protruding hole 81b.
The lid case portion 82 includes a hollow portion 82b that houses a spring 82a, a rotating portion 82c for rotating the lid case portion 82 relative to the cylindrical case portion 81, and a ring for attaching the strap 84. 82d.
The pen shaft 83 includes a pen tip portion 83a, a cylindrical portion 83b in which ink is stored, a spring 82a disposed on the end portion side of the cylindrical portion 83b opposite to the pen tip 83a, and a female screw. And a male screw portion 83c screwed into the portion 81a.

  FIG. 9A shows the small ball-point pen 80 in a state in which the pen tip 83a is accommodated. When the rotating portion 82c is rotated, the pen tip 83a of the small ballpoint pen 80 is adapted to protrude from the protruding hole 81b by moving the pen tip 83a while the female screw portion 81a and the male screw portion 83c are screwed together. FIG. 9B shows a state in which the pen tip 83a is protruded.

  Conversely, when the rotating portion 82 c is rotated in the opposite direction, the female screw portion 81 a and the male screw portion 83 c are screwed together, and the shaft tube portion 83 moves in a direction in which it is housed in the cylindrical case portion 81. Since the cylindrical portion 83b is pressed by the spring 82a, the female screw portion 81a and the male screw portion 83c are not disengaged even if they are turned too much.

  On the other hand, there is a conventional pen tip feeding mechanism of a ballpoint pen as shown in FIG. This ball-point pen 90 generally includes a shaft tube 91, a fixing portion 92, a coil spring 93, a lid body 94, a crown material 95, a ball-point pen shaft 96, a clip portion 97, and a pin 98. (For example, refer patent document 1).

  The shaft tube 91 of the ballpoint pen 90 has a protruding hole 91a, a spring 91b provided near the protruding hole 91a, and a hollow portion 91c. The ball-point pen shaft 96 is held by the fixing portion 92 so that the axis line is not displaced in the hollow portion 91c of the shaft tube 91. A coil spring 93 and a lid 94 are attached above the fixing portion 92 that supports the ballpoint pen shaft 96 so as to wrap the ballpoint pen shaft 96. A crown member 95 is attached to an end portion opposite to the pen tip 96a side of the shaft tube 91 into which the fixing portion 92, the coil spring 93, the lid body 94, and the ballpoint pen body 96 are taken.

  The crown 95 is provided with a notch, and a rotating plate 97a of the clip 97 is inserted therein and is rotatably attached by a pin 98. The rotary plate portion 97a is provided with a concave portion 97b and a concave portion 97c at opposing positions with the rotation center therebetween. And the length from the pin 98 to the recessed part 97c is longer than the length from the pin 98 to the recessed part 97b. The recesses 97b and 97c are formed in a semicircular shape that fits the lid 94.

FIG. 10A shows a state where the ballpoint pen shaft 96 is housed in the shaft tube 91. In this state, since the end of the lid 94 is pressed against the recess 97b of the clip 97 by the elastic force of the coil spring, the position of the ballpoint pen shaft 96 is stable.
Then, when the clip 97 is rotated around the pin 98 from the state of FIG. 10A, the pen tip 96a protrudes from the protrusion hole 91a (see FIG. 10B). That is, when the tip of the clip 97 is rotated so as to be lifted upward, the rotating plate portion 97a is also rotated, so that the press-fit lid 94 is removed from the concave portion 97b. When the rotating plate portion 97a is further rotated, the concave portion 97c now reaches the lower side. Then, the lid 94 is pressed by the recess 97c, and the ball-point pen shaft is stabilized at the position where the pen tip 96a protrudes from the protrusion hole 91a. Then, after use, the clip 97 is rotated so as to be lowered, and the lid 94 is pressed against the recess 97b again. As a result, after use, the nib 96a is securely stored in the shaft tube 91.

Utility model registration No. 3080608 gazette Claim 1 FIG.3 and FIG.4

  However, in the conventional small ballpoint pen 70 shown in FIG. 8, the cap portion 72 has to be removed from the main body 71 for use, and the main body 71 and the cap portion 72 are separated from each other. There is also a risk that the cap part 72 or the main body 71 may be lost during carrying. In addition, it is not easy to remove the strap 73 every time it is used, and it is extremely inconvenient particularly when it is desired to use it quickly.

  Further, the conventional small ballpoint pen 80 shown in FIG. 9 does not need to be separated or united like the small ballpoint pen 70, but has a problem that it is difficult to use practically because the entire length is short. . In addition, there is a problem similar to the case of the above-described ballpoint pen 70 that the strap 73 must be removed every time it is used and that it is troublesome when it is used quickly.

  On the other hand, in the conventional ballpoint pen 90 shown in FIG. 10, when the clip 97 is raised and used, the entire length of the shaft tube 91 is combined with the clip 97, so that the overall length is too long and the usability is poor. There was a problem of becoming. In the ballpoint pen 90, the idea of carrying a strap attached is not shown at all.

Therefore, the problem to be solved by the present invention is to provide a small ball-point pen that is small and easy to carry while having a length that is easy to use in a use state and that allows easy writing.
The problem to be solved by the present invention is to provide a small ballpoint pen that can be easily attached to and detached from a strap or neck strap of a mobile phone.
It is another object of the present invention to provide a small ballpoint pen having various effective mechanisms while being small.

In order to solve the above-mentioned problems, the invention according to claim 1 has a clip having a rotation center on the end side of the main body of the ballpoint pen, and when the clip is raised and positioned in the axial direction of the main body The pen nib is extended and locked, and when the pen nib is unlocked and the clip is returned to the original position, the pen nib is drawn into the main body and locked in that state. A pen tip feeding mechanism, and a clip has a rotating plate portion with a center hole that is rotatably attached to a rotation center provided on the end side of the ballpoint pen body, and A clip portion extending from the U-shaped portion formed so as to bend in a substantially U shape from the rotating plate portion, and a gap portion is provided between the end portion on the rotation center side of the main body and the U-shaped portion. Formed in the gap Provides a compact ball-point pen, characterized in that the holding member of the flop or the like is to be hooked.

In order to solve the above problem, the invention according to claim 2 is the small ballpoint pen according to claim 1 , wherein the U-shaped portion has a holding member when the clip is returned to the position where the pen tip is pulled into the main body. A protruding portion is provided for guiding so that the latching position is positioned on the axial direction of the main body extending through the rotation center of the clip.

In order to solve the above problem, the invention according to claim 3 is the small ballpoint pen according to claim 2 , wherein the clip is provided with a drop-off preventing mechanism for preventing the holding member from dropping off. .

The invention of claim 4, wherein in order to solve the above problems, in a small ball-point pen according to any one of claims 1 to 3 4, the feeding mechanism of the nib, the fed-out pen tip is unlocked And an elastic body that acts to pull the pen tip into the main body, and the elastic body is capable of firmly fixing the clip when the clip is clamped by a clamped body having a predetermined thickness. It is characterized by having strength.

In order to solve the above-mentioned problems, the invention described in claim 5 is characterized in that, in the small ballpoint pen described in claim 4 , the clip portion is deformable in accordance with the thickness of the sandwiched body.

In order to solve the above-mentioned problem, the invention described in claim 6 is characterized in that, in the small ball-point pen described in any one of claims 1 to 4 , the clip portion has a magnifying glass function.

In order to solve the above-described problem, the invention according to claim 7 is the small ballpoint pen according to claim 6 , wherein the main body portion positioned on the lower side of the clip portion with the pen tip unlocked has characters, figures, It is a description part describing symbols, patterns, etc., and the description can be enlarged and viewed by observing the characters etc. described in the description through the magnifying glass function of the clip part. And

  According to the present invention, there is an effect that it is possible to provide a small ballpoint pen that can be easily and quickly put in and out of the main body with one hand and can be easily written. When the pen tip is drawn into the main body, it is easy to carry and carry because the entire length is short, and when the pen tip is drawn out, the total length is long, so that it is possible to provide a small ballpoint pen that is easy to use.

  Furthermore, according to the present invention, there is an effect that it is possible to provide a small ballpoint pen that can be easily attached to and detached from a strap or neck strap of a mobile phone by rotating the clip portion.

  Furthermore, according to the present invention, when the pen tip is pulled into the main body in a state where it is not used, there is an effect that it is possible to provide a small ballpoint pen that is stable in position and can be easily carried.

  Furthermore, according to the present invention, there is an effect that it is possible to provide a small ballpoint pen that prevents a holding member such as a strap from being unexpectedly removed while being carried.

  Furthermore, according to the present invention, it is possible to provide a small ballpoint pen that can be easily carried without using a holding member such as a strap.

Furthermore, by having an enlargement function in the clip portion, it is possible to enlarge characters and the like written on the main body and to exert an advertising effect on the purchaser.
Further, by drawing various shapes or various patterns at the center of rotation of the clip, there is an effect that two modes can be expressed along with the rotation operation. Thus, an excellent commercial effect can be exhibited, and for example, the purchase intention of the purchaser can be promoted.

The small ballpoint pen according to the present invention will be described in more detail based on an illustrated embodiment.
FIG. 1 is a perspective view showing a first embodiment of a small ballpoint pen according to the present invention. FIG. 2 is an exploded perspective view of the small ballpoint pen shown in FIG. The illustrated small ballpoint pen 10 is generally configured to include a main body 1, a ballpoint pen core portion 2, a clip 3, a relay portion 4, an elastic body 5, and a pin 6.

  The main body 1 is formed in a cylindrical shape along the axial direction, and has a hollow portion 1d through which both ends penetrate. At one end thereof, a protruding hole 1a through which the pen tip 2a of the ballpoint pen core 2 enters and exits the main body 1 is provided. The other end side is an attachment portion 1b to which the rotating plate portion 3a of the clip 3 is attached. In addition, in order to attach the clip 3 to the main body 1 by the rotating plate portion 3a, a central hole 1c is formed in the attachment portion 1b. The center hole 1c is the rotation center C around which the clip 3 rotates. Further, in the hollow portion 1d of the main body 1, an area in which the ballpoint pen core portion 2 and the relay portion 4 are disposed is secured. The diameter of the projecting hole 1a is such that it does not pass through a shoulder 2b of a ballpoint pen core 2, which will be described later, and passes through the pen tip 2a.

  The main body 1 is formed by, for example, integrally molding with a synthetic resin. Of course, the main body 1 is not limited to this, and can be formed of various materials such as metals such as aluminum alloys and magnesium alloys, and wood. Moreover, not only integral molding but the main body 1 can be composed of a plurality of parts, and each part can be assembled. In addition, although the cross-sectional shape of the main body 1 has a substantially square shape, it is needless to say that this may be a circle or a polygon such as a hexagon.

  Next, the ball-point pen core part 2 will be described. As best shown in FIG. 2, the ball-point pen core portion 2 has a structure in which ink is accommodated therein and the ink is sequentially sent out from the pen tip 2a. The vicinity of the base of the nib 2a is thicker than the nib 2a and forms a shoulder 2b. This ball-point pen core portion 2 has the same mechanism as a commonly used ball-point pen shaft. However, the ball-point pen core part 2 is configured to have a length and a thickness suitable for the main body 1. And the ball-point pen core part 2 is assembled and arranged in the state inserted in the inside of the elastic body 5 which is a coil spring. On the other hand, the open end 2 c side of the ball-point pen core 2 is inserted into the relay unit 4.

  The elastic body 5 is a helical coil spring. Inside the elastic body 5, a space for the ballpoint pen core 2 is formed. However, since the diameter of the elastic body 5 is larger than the diameter of the protruding hole 1a, the elastic body 5 is locked without jumping out of the protruding hole 1a, and is expanded and contracted by being pressed by the vertical movement of the shoulder 2b. Thus, the ball-point pen core part 2 inserted into the elastic body 5 penetrates from the direction of the tip 5a of the spring so as not to fall off.

  The relay part 4 is disposed between the ball-point pen core part 2 and the rotary plate part 3a of the clip 3, and includes an insertion part 4a into which the open end part 2c of the ball-point pen core part 2 is inserted, and a convex formed on the rotary plate part 3a. The convex part 3c formed in the part 3b and the U-shaped part 3e has the recessed part 4b which fits. The insertion portion 4a is formed slightly larger than the diameter of the open end portion 2c. For example, the diameter of the insertion portion 4a is desirably about 1 mm larger than the diameter of the open end portion 2c. On the other hand, the convex part 3b formed in the rotating plate part 3a of the clip 3 and the convex part 3c formed in the U-shaped part 3e are fitted in the concave part 4b of the relay part 4, respectively. Thereby, the relay part 4 can transmit force to the elastic body 5 or the ball-point pen core part 2 from the clip 3. Of course, the power can be transmitted to the opposite. In addition, although the relay part 4 is formed with the synthetic resin, it cannot be overemphasized that it can form with various materials, such as a metal and wood.

  The clip 3 has a U-shape in which the rotating plate portion 3a provided with the convex portion 3b, the clip portion 3d, the rotating plate portion 3a and the clip portion 3d are connected in a U shape and the side surface thereof is provided with the convex portion 3c. Part 3e, gap part 3f formed between U-shaped part 3e and rotating plate part 3a, hole 3g formed in rotating plate part 3a, and drop prevention part 3h. ing. The rotating plate portion 3 a is attached to the attachment portion 1 b of the main body 1 using pins 6. The pin 6 has the male part 6a inserted in the order of the center hole 1c, the hole 3g, and the center hole 1c, and finally the female part 6b is screwed to attach the clip 3 to the main body 1. The clip 3 attached to the main body 1 is rotatable around the pin 6 as the rotation center C.

  The convex part 3b is provided in the rotating plate part 3a. On the other hand, the convex part 3c is provided in the U-shaped part 3e. The convex portions 3 b and 3 c are all fitted into the concave portion 4 b of the relay portion 4. In this fitting, the elastic force of the elastic body 5 mainly works. In addition, the convex parts 3b and 3c are arrange | positioned symmetrically centering | focusing on the hole 3g. The convex portions 3b and 3c are positioned on the axis of the small ballpoint pen 10 when the pen tip 2a is drawn into the main body 1 or when the pen tip is extended.

  The clip 3 has a clip portion 3d that holds a pocket, a notebook, or the like. And the U-shaped part 3e is greatly curved from the rotating plate part 3a to the clip part 3d. A gap 3f is formed between the U-shaped portion 3e and the rotating plate portion 3a. As shown in FIG. 1, a strap 9 as a holding member is attached to the gap 3f. The rotating plate portion 3a is formed with a drop prevention portion 3h so that the strap does not fall off naturally.

  The clip 3 is formed of a synthetic resin, but can be formed of various materials such as metal and wood. However, since the clip 3 rotates while sliding on the relay part 4 between the positions where the concave part 4b and the convex part 3b or the concave part 4b and the convex part 3c are fitted, the material of the relay part 4 and the clip 3 is easy to slip on each other. It is desirable to form with a material with little friction.

  In addition, in the small ball-point pen 10, although the recessed part 4b is provided in the relay part 4, and the convex parts 3b and 3c are provided in the clip 3, while providing the convex part in the relay part 4, the recessed part is provided in the clip 3, and it mutually fits. It can also be configured as follows.

Further, the U-shaped portion 3e has an axial direction of the main body 1 in which the hooking position of the strap 9 extends through the rotation center C of the clip 3 when the clip 3 is returned to the position where the pen tip 2a is pulled into the main body 1. A convex portion 3k is provided for guiding so as to be positioned above. The convex portion 3k prevents the strap 9 from moving in the right direction in FIG. 3 and guides the strap 9 so that it is always located on the axis of the small ballpoint pen 10 passing through the rotation center C of the clip 3. This prevents the clip 3d from easily rotating even if a force is applied in the direction of the arrow shown in FIG.

  Next, the operation of the feeding mechanism of the pen tip 2 of the small ballpoint pen 10 will be described with reference to FIGS. 3 to 5 are schematic cross-sectional views of the small ballpoint pen 10. FIG. 3 shows a state in which the pen tip 2 a of the ballpoint pen core 2 is housed in the main body 1. FIG. 5 shows a use state in which the pen tip 2 a is drawn out from the main body 1. 4 shows a transition process from FIG. 3 to FIG. 5 or a transition process from FIG. 5 to FIG.

  First, in the retracted state, as shown in FIG. 3, the convex portion 3 b of the clip 3 is pressed against the concave portion 4 b of the relay portion 4 by the elastic force of the elastic body 5, and the pen tip 2 a is drawn into the main body 1. The pen tip is locked in the state. Normally, the small ballpoint pen 10 is carried and carried in this state.

Next, when the small ballpoint pen 10 is used, the clip portion 3 d of the clip 3 is rotated in a direction away from the main body 1. A state in the middle of the rotation is shown in FIG.
By rotating around the rotation center C, the rotating plate portion 3a gradually pushes down the relay portion 4. This is because the length from the rotation center C to the projection 3c is longer than the length from the rotation center C to the projection 3b.

  As the clip 3 is further rotated, the convex portion 3c reaches a position that fits the concave portion 4b. The convex portion 3 c is pressed and fixed in the concave portion 4 b by the elastic force of the elastic body 5. Thus, when the state of FIG. 5 is reached, the nib 2a is drawn out from the protruding hole 1a and fixed at that position.

When the small ballpoint pen 10 is grasped as shown in FIG. 6 in the state shown in FIG. 5, that is, in a state where the clip portion 3d is rotated halfway and positioned on the axis of the main body 1, the small ballpoint pen 10 is grasped. 10 can be used in the same way as a ballpoint pen having a normal length. As a result, the small ball-point pen 10 can be made more compact when not in use and has a length that is easier to use when in use. Specifically, for example, when the small ballpoint pen is not used, the total length can be about 5 cm or less, and when used, the total length can be about 8 cm or more.
In addition, what is necessary is just to perform operation contrary to the above-mentioned operation in order to change it from a usable state (refer FIG. 5) to a storage state (refer FIG. 3).

  By the way, as shown in FIG. 3, a strap 9 is suspended from the small ballpoint pen 10. At this time, the strap 9 is inserted into the gap 3f and is hooked on the U-shaped portion 3e. In order to prevent the strap 9 from falling off easily, a removal preventing portion 3h is provided so as to slightly protrude from the end of the rotating plate portion 3a on the gap 3f side.

  Further, when the small ball-point pen 10 is suspended by the strap 9 as shown in FIG. 3, the upward force on the axis of the small ball-point pen 10, which is the direction indicated by the arrow, mainly works. Therefore, a large rotational moment that generates a rotational force on the clip 3 is not applied. That is, even if the force from the strap 9 acts on the axis of the small ball-point pen 10 passing through the rotation center C, the clip 3d can be easily rotated and the state shown in FIGS. 4 and 5 cannot be obtained.

  However, when a force is applied in a direction in which the clip portion 3d is separated from the main body 1, the clip 3 easily rotates around the rotation center C. This is because the clip 3 is long and the length from the rotation center C to the force line is long. That is, a large rotational moment is generated with a small force.

  On the other hand, when the clip 3 is rotated in this way, if the strap 9 is moved in the direction of the tip of the clip 3 which is the X direction of the arrow shown in FIG. Can be removed. That is, the strap can be easily removed by holding the small ballpoint pen with one hand and lifting the clip portion 3d with a finger, and the small ballpoint pen 10 is ready for use.

  By the way, the position of the clip of the small ballpoint pen 10 is fixed in the use state or the storage state by the convex portions 3 b and 3 c being fitted into the concave portion 4 b of the relay portion 4 by the elastic force of the elastic body 5. Therefore, by adjusting the strength of the coil spring which is the elastic body 5 to a predetermined strength, that is, by adjusting the pressing force of the convex portion 3b to the concave portion 4b, for example, between the clip 3d and the main body 1 It is possible to hold a sandwiched body such as paper or a notebook.

  At this time, if the clip portion 3d is made of a material that undergoes plastic deformation or large elastic deformation, for example, a metal such as iron or stainless steel, the shape of the clip portion 3d itself is deformed in accordance with the thickness of the sandwiched body. Therefore, even if the thickness of the sandwiched body is large, it is possible to sandwich the sandwiching body without the clip portion 3d being inclined and the convex portion 3b being detached from the concave portion 4b.

On the other hand, the clip part 3d can be provided with various functions.
Specifically, for example, a magnifying glass function can be provided in the clip portion 3d. As the one having a magnifying glass function, the clip portion 3d can be added with a lens function with a cross-sectional shape made of light-transmitting material such as acrylic.
This makes it possible to read small characters using the clip portion 3d having a lens function when the pen tip is drawn out to be usable.

  In addition, when the small ballpoint pen 10 is in the retracted state and the clip portion 3d is in contact with the main body 1, if the main body 1 character / symbol or the like located below the clip portion 3d is described, the clip portion The 3d lens function makes it possible to enlarge the characters and figures. By writing the company name as characters, the company name can be appealed to the user of the small ballpoint pen 10.

  The small ball-point pen 20 shown in FIG. 7 has “ROXY” printed on the main body portion 21 below the clip portion 23, and the clip portion 23 becomes the lens 22. Thereby, the character “ROXY” written in the lower part of the lens 22 appears to be greatly enlarged through the clip portion 23. Thereby, an extremely high advertising effect can be exhibited.

  Further, the small ballpoint pen according to the present invention is characterized in that the clips 3 and 23 rotate around the rotation center C. Therefore, in the center hole 3g formed in the rotating plate part 3a which is the center of rotation C provided on the end side of the main body 1, a depiction part depicting a character or a pattern whose expression changes before and after the rotation is provided. By providing this, the drawing portion on which the character or the like is drawn is rotated in accordance with the drawing operation of the pen tip, so that the children are intrigued and the effect of doubling the willingness to purchase can be expected.

1 is a perspective view showing a first embodiment of a small ballpoint pen according to the present invention. It is a disassembled perspective view of the small ball-point pen shown in FIG. It is the cross-sectional schematic of the small ball-point pen shown in FIG. It is the cross-sectional schematic of the small ball-point pen shown in FIG. It is the cross-sectional schematic of the small ball-point pen shown in FIG. It is a schematic diagram at the time of use of the small ball-point pen shown in FIG. It is a perspective view which shows 2nd embodiment of the small ball-point pen which concerns on this invention. It is the schematic diagram of the conventional small ball-point pen, (a) shows the accommodation state, (b) has shown the usable state. It is the schematic diagram of the conventional small ball-point pen, (a) shows the accommodation state, (b) has shown the usable state. It is the schematic diagram of the conventional ball-point pen, (a) shows the accommodation state, (b) has shown the usable state.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10, 20 Small ball-point pen 1 Main body 1a Projection hole 1b Attachment part 1c Center hole 1d Hollow part 2 Ball-point pen core part 2a Pen tip 2b Shoulder part 2c Open end part 3 Clip 3a Rotating plate part 3b, 3c Convex part 3d Clip part 3e U character Part 3f gap part 3g hole 3h drop prevention part 3k convex part 4 relay part 4a insertion hole 4b concave part 5 elastic body 5a tip 6 pin 6a male part 6b female part 9 strap 21 main body part 22 magnifying glass 23 clip part C rotation center

Claims (7)

The ballpoint pen has a clip having a center of rotation on the end side of the main body of the ballpoint pen, and when the pen is raised and positioned in the axial direction of the main body, the pen tip is extended and locked. When the tip lock is released and the clip is returned to the original position, the pen tip that has been drawn out is drawn into the main body and locked in that state,
The clip
A rotating plate portion having a center hole that is rotatably attached to a rotation center located on the end side of the main body of the ballpoint pen; and
A clip portion extending from the U-shaped portion formed so as to be bent in a substantially U-shape from the rotating plate portion;
Configured with
A gap portion is formed between the rotation center side end of the main body and the U-shaped portion, and a holding member such as a strap is hooked on the gap portion. A small ballpoint pen. The small ballpoint pen according to claim 1 ,
The U-shaped portion is positioned on the axial direction of the main body where the retaining position of the holding member extends through the center of rotation of the clip when the clip is returned to the position where the pen tip is pulled into the main body. The small ball-point pen characterized by the above-mentioned. The small ballpoint pen according to claim 2 ,
A small ball-point pen, wherein the clip includes a drop-off prevention mechanism for preventing the holding member from falling off. In the small ball-point pen of any one of Claim 1 to 3 ,
The pen nib feeding mechanism includes an elastic body that acts to pull the pen nib into the main body when the pen nib is unlocked, and the elastic body has a predetermined thickness. A small-sized ballpoint pen configured to have a strength that allows the clip to be firmly fixed when sandwiched by a sandwiched body. The small ballpoint pen according to claim 4 ,
A small ballpoint pen, wherein the clip portion is deformable according to the thickness of the sandwiched body. The small ballpoint pen according to any one of claims 1 to 4 ,
A small ballpoint pen, wherein the clip portion has a magnifying glass function. The small ballpoint pen according to claim 6 ,
The body portion located on the lower side of the clip portion with the pen tip unlocked is a description portion that describes characters, figures, symbols, patterns, etc., and the characters etc. described in the description are A small-sized ballpoint pen that can be viewed in an enlarged manner when viewed through a magnifying glass function.

Images