JP4608247B2 - Writing instrument with clip member - Google Patents

Description

  The present invention relates to a writing instrument having a clip member, and more particularly to a writing instrument having a clip member in which a clip piece can be translated in a vertical direction with respect to an axis of a shaft cylinder.

  2. Description of the Related Art Conventionally, a writing instrument having a clip member in which a clip piece is movable in a vertical direction with respect to an axis of a shaft cylinder is well known. In Japanese Patent Laid-Open No. 8-72478, a “knock type writing instrument”, a pen core urged rearward by a coil spring is moved forward and backward by a series of operations of a knock mechanism provided on the rear end side of the shaft cylinder to move the shaft. By moving the clip piece in the vertical direction with respect to the axial center of the shaft cylinder by the structure in which the pen tip is projected and retracted from the tip of the cylinder, and when writing, the clip piece is placed in the shaft cylinder and substantially flush with the surface of the cylinder. A knock-type writing instrument is disclosed that eliminates the restriction of the gripping state for gripping the shaft tube and prevents the pen tip from being partially reduced by long-term use.

  Japanese Patent Application Laid-Open No. 2002-166694 “Intrusion Type Writing Tool” has a clip and a cursive unit that can be projected and retracted with respect to the shaft tube, and has a structure in which the projecting operation of the cursive unit and the projecting operation of the clip are interlocked. In the retractable writing instrument, the clip piece is translated in the vertical direction with respect to the axial center of the shaft cylinder, and the clip piece is placed substantially on the same surface as the shaft cylinder surface or in the shaft cylinder, thereby improving safety when carrying. A retractable writing instrument that prevents the clothes from being soiled is disclosed.

By the way, in Japanese Patent Application Laid-Open No. 2001-146094, one end side of a substantially U-shaped pinching spring is fixed to the surface side of a cylindrical body such as a shaft cylinder or a cap, and the other end side of the pinching spring extends along the surface of the cylindrical body. The clip is pivotally supported on a pivotal support formed by the surface of the clip facing the cylinder and the surface of the cylinder facing the clip, and the other end of the clip spring is placed on the clip more than the pivotal support. It has a structure where the clip is attached to the cylinder so that the front end of the clip is elastically pressed against the surface of the cylinder, and the clip piece is constantly applied with a force on the surface of the shaft cylinder. A binder-type accessory clip attaching device is disclosed.
"JP-A-8-72478" "JP 2002-166694 A" "Japanese Patent Laid-Open No. 2001-146094"

  However, the clip member described in JP-A-8-72478 and JP-A-2002-166694 is capable of translating the clip piece in the vertical direction with respect to the axis of the shaft cylinder. Therefore, it is difficult to clamp a thin object to be clamped.

  In addition, a so-called binder-type accessory clip described in Japanese Patent Application Laid-Open No. 2001-146094 is a relatively thick object because the clip piece cannot be translated in a direction perpendicular to the axis of the shaft cylinder. When sandwiching the object, since the object to be sandwiched and the clip piece can only partially contact each other, the object to be sandwiched may be detached due to vibration or impact.

  In view of the above-described conventional problems, the object of the present invention is to hold both a thin object and a thick object so that the object is not easily detached due to vibration or impact, and the clip piece is damaged. It is difficult to provide a writing instrument having a clip member.

The technical means of the present invention for solving the above-described problem is that the clip piece and the foot can be interlocked by attaching the foot to the clip piece separately or integrally forming the clip piece. A writing instrument having a clip member inserted into a through-hole formed in a side surface of a cylinder so as to be movable in a direction perpendicular to the axis of the shaft cylinder, the bottom part of the foot part and a shaft in the foot part by the elastic force generated by disposed in a compressed state coil spring between the spring receiving member is attached to the cylindrical inner wall or the shaft tube, thereby always biased in the axial direction a clip piece, the coil spring, said shaft It is disposed so as to cover a support column fitted in the cylinder, and the foot, the support column, and the coil spring can be inserted from the through hole .

  In addition, the clip member includes a gripping portion that has been subjected to an anti-slip process on a side wall of the clip piece and / or a side wall of the foot that is continuous with the side wall of the clip piece.

  Moreover, the said holding part consists of a recessed part and / or a convex part.

  Further, the gripping part is a non-slip member having a higher frictional resistance than the clip piece attached to the side wall of the clip piece and / or the side wall of the foot continuous with the side wall of the clip piece.

  Further, the inner wall of the clip piece is in line contact with the outer wall of the opposite shaft cylinder.

  The clip piece forms a slope or a curved surface that provides a gap between the front end of the clip piece and the shaft tube, and an insertion port is provided at the tip of the clip piece.

  The present invention provides a writing instrument having a clip member that can hold both a thin object to be held and a thick object to be held, the object to be held is not easily detached by vibration or impact, and the clip piece is not easily damaged. I was able to.

  Next, examples of the writing instrument of the present invention will be described with reference to the drawings, but the present invention is not limited to the following examples.

  A writing instrument 1 having a clip member according to the first embodiment of the present invention shown in FIGS. 1 to 6 includes a ballpoint pen tip that rotatably holds a ball in a shaft cylinder in which a front shaft 2 and a rear shaft 3 are screwed together. The writing body 12 having the writing tip portion 14 attached to the tip portion of the ink containing cylinder 13 is housed by being biased toward the rear shaft rear end 3a by the coil spring 15 and protrudes from the rear shaft rear end 3a. By pressing the knock body 6 toward the front end opening 2a side of the front shaft 2, the push rod 5 and the rotary cam 4 disposed at the front of the knock body 6 are interlocked, and the writing front end portion 14 is moved to the front end opening of the front shaft 2. It is a knock-type writing instrument that can appear and disappear from the portion 2a.

  A clip member 7 is attached to the rear end portion of the rear shaft 3. The clip member 7 is formed integrally with a clip piece 8 and a foot 9, and the foot 8 is inserted into a through-hole 3 b formed in the side surface of the rear shaft 3 in a direction perpendicular to the axis J (the direction of the axis K of the column 11 K). ) To be able to move in parallel. A spring 16 is disposed in the foot 8. The spring 16 is inserted so as to pass through the insertion hole 8 a of the clip piece 8 and penetrate the hollow of the spring 16. Similarly, the support column 11 that assists the expansion and contraction of the spring 16 is fitted into a fitting hole 3c that faces the through hole 3b with respect to the axis J of the writing instrument, in which the tip end of the support column 11 is formed on the rear shaft 3. Arranged.

  Next, the spring receiving member 10 passes through the insertion hole 8 a of the clip piece 8 so as to cover the support column 11, and the locking claw 10 a formed on the spring receiving member 10 passes through the through hole 3 b of the rear shaft 3. And is attached to the rear shaft 3 while being locked. At this time, the spring 16 is disposed so as to be compressed between the bottom step portion 9 a of the foot portion 9 of the clip piece 8 and the inner wall of the spring receiving member 10. The elastic force generated by compressing the spring 16 is generated in a direction in which the bottom step 9a is pushed down against the bottom step 9a of the foot 9, and the clip piece 8 integrated with the foot 9 is The writing tool is biased in the vertical direction (direction of arrow A in FIGS. 2 and 4) in the axis J direction.

  The operation of the writing instrument having the clip member of the present invention will be described. When the clip piece 8 is gripped on the bottom wall S of the clip piece and translated in the direction perpendicular to the axis J of the writing instrument (in the direction opposite to the arrow A in FIGS. 2 and 4), the clip piece 8 is integrated with the clip piece 8. The foot 9 also translates in the direction perpendicular to the axis J of the writing instrument along the axis K direction of the column 11. As a result, the bottom step 9a of the foot 9 also moves parallel to the writing tool axis J in the vertical direction at the same time, so that the spring 16 is further compressed and the elastic force of the spring 16 is improved. The urging force in the direction perpendicular to the direction (the direction of arrow A in FIGS. 2 and 4) increases.

  As described above, by arranging the spring 16 in a compressed state between the bottom step portion 9a of the foot portion 9 of the clip piece 8 and the inner wall of the spring receiving member 10, the clip piece 8 is always placed in the axial center of the writing instrument. When the clip piece 8 of the clip member 7 is urged in the vertical direction of the J direction (the direction of the arrow A in FIGS. 2 and 4) and moved parallel to the axis J of the writing instrument in the vertical direction, the elastic force of the spring 16 is increased. It increases and it becomes possible to pinch with stronger force. Further, the writing instrument having the clip member of the present invention has the clip piece 8 of the clip member 7 that moves in parallel to the axis J of the writing instrument in the vertical direction, and therefore the clip piece 8 with respect to the object to be clamped (not shown). It can be clamped as a whole, the frictional force between the object to be clamped and the clip piece 8 is increased, and the clamping force can be increased as compared with the conventional clip piece.

  In addition, an inclined surface or the like that provides a gap with the outer wall of the rear shaft 3 is formed at the tip of the clip piece 8, and the insertion port 8 b is provided, so that an object to be clamped (not shown) can easily enter the clip piece 8. Therefore, it is preferable. Further, the inner wall 8c of the clip piece 8 is arranged so as to be in line contact with the outer wall of the opposing rear shaft 3, so that the clip piece 8 of the clip member 7 works in a direction perpendicular to the axis J of the writing instrument. Since the inner wall 8c of the clip piece 8 and the object to be clamped are clamped at least by line contact by the biasing force, a thin object to be clamped can be securely clamped, which is preferable.

  FIG. 7 shows a top view of a writing instrument 21 having a clip member in Example 2 of the present invention. A clip member is mounted in the same manner as in Example 1 except that the side wall S1 of the clip piece 28 of the clip member 27 disposed on the rear shaft 23 has a gripping portion H1 provided with a convex portion T as an anti-slip process. The writing instrument 21 is obtained. By providing the convex portion T on the side wall S1 of the clip piece 27, when the convex portion T is held by a finger, the convex portion T fits the fingertip, so that the finger is difficult to slip and the operation of the clip piece 28 is comfortable. It can be carried out. Further, by forming the convex portion T, an improvement in aesthetic appearance is expected.

  FIG. 8 shows a top view of a writing instrument 31 having a clip member in Example 3 of the present invention. Example except that a gripping part H2 to which a non-slip member G having a higher frictional resistance than the clip piece 38 is provided as a non-slip treatment is provided on the side wall S2 of the clip piece 38 of the clip member 37 disposed on the rear shaft 33. Similar to 1, a writing instrument 31 having a clip member is obtained. Examples of the anti-slip member G include rubber members such as natural rubber, silicone rubber, and thermoplastic elastomer. By adopting the anti-slip member G, the anti-slip effect can be obtained when the side wall S2 of the clip piece 38 is gripped by a finger. Moreover, since the improvement of the beauty | look is anticipated by making it the combination which made the color of the rear axis | shaft 33 or the clip piece 38, and the anti-slip | skid member G differ, it is preferable.

  The anti-slip treatment performed on the side wall of the clip piece is not limited to the above-described embodiment, and the side wall of the clip piece is held by a finger such as a satin finish, forming a large number of grooves, small protrusions, and uneven portions. And when moving a clip piece, it can implement by selecting suitably the holding part structure which a finger | toe does not slip easily. Moreover, although not shown in figure, you may give a slip prevention process to the side wall of the foot | leg part continuing to the side wall of a clip piece.

  Further, the writing instrument having the clip member of the present invention is not limited to the shape of the clip piece, and is appropriately selected such as forming a ball part on the wall surface facing the shaft cylinder of the clip piece or decorating the outer wall. Can be implemented.

  The writing instrument having the clip member of the present invention exhibits excellent performance, and can be widely used as a writing instrument such as a ballpoint pen, a marker, and an applicator, and can also be used for a knock-type writing instrument and a cap-type writing instrument.

2 is a longitudinal sectional view showing a writing instrument having a clip member of Example 1. FIG. It is a longitudinal cross-sectional view of the writing instrument in the state which opened the clip piece in FIG. FIG. 2 is an enlarged vertical cross-sectional view of a main part, partly omitted in FIG. 1. FIG. 3 is an enlarged vertical cross-sectional view of a main part, partially omitted in FIG. 2. It is a top view in FIG. FIG. 2 is an enlarged vertical cross-sectional view of a main part, partially omitted, showing an assembly process in FIG. 1. 6 is a top view showing a writing instrument having a clip member of Example 2. FIG. 6 is a top view showing a writing instrument having a clip member of Example 3. FIG.

Explanation of symbols

1, 21, 31 Writing instrument having clip member 2 Front shaft 2a Front end opening 3, 23, 33 Rear shaft 3a Rear shaft rear end 3b Through hole 3c Fitting hole 4 Rotating cam 5 Push rod 6 Knock body 7, 27, 37 clip member 8, 28, 38 clip piece 8a insertion hole 8b insertion port 9 foot 9a bottom step 10 spring receiving member 11 support 12 writing body 13 ink containing cylinder 14 writing tip 15 coil spring 16 spring T convex portion G slip Stopping member S, S1, S2 Side wall J Shaft center axis K Strut shaft center

Claims (6)

By attaching the foot part to the clip piece separately or integrally forming the clip part, the clip piece and the foot part can be interlocked, and the shaft center of the shaft tube is formed in the through hole formed on the side surface of the shaft tube. A writing instrument having a clip member inserted so as to be movable parallel to the vertical direction between the bottom of the foot and the inner wall of the shaft tube or the spring receiving member attached to the shaft tube With the elastic force generated by arranging the coil spring in a compressed state, the clip piece is always urged in the axial direction, and the coil spring is arranged so as to cover the column fitted in the shaft cylinder, A writing instrument having a clip member, wherein the foot, the column, and the coil spring can be inserted from the through hole . 2. The clip member according to claim 1, wherein the clip member has a gripping portion subjected to a non-slip treatment on a side wall of the clip piece and / or a side wall of the foot part continuous with the side wall of the clip piece. Writing instrument with. The writing instrument having a clip member according to claim 2, wherein the grip portion is formed of a concave portion and / or a convex portion. The gripping part is an anti-slip member having a higher frictional resistance than a clip piece attached to a side wall of the clip piece and / or a side wall of a foot continuous with the side wall of the clip piece. 4. A writing instrument having a clip member according to any one of 3 above. The writing instrument having a clip member according to any one of claims 1 to 4, wherein an inner wall of the clip piece is in line contact with an outer wall of an opposing shaft cylinder. 6. The clip piece according to claim 1, wherein the clip piece forms an inclined surface or a curved surface that provides a gap between the front end portion of the clip piece and the shaft cylinder, and an insertion port is provided at a tip of the clip piece. A writing instrument having a clip member.

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