JP2014091226A - Writing instrument with cap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a writing instrument with a cap capable of preventing the deterioration of writing performance, and having a simple structure.SOLUTION: The writing instrument with a cap includes: a shaft cylinder 10; a writing portion 20 projected out from the shaft cylinder 10; a cap portion 40 covered on the writing portion 20; and an arm portion 50 connected with the cap portion 40 on a front end side. The cap portion 40 is provided so as to cover the writing portion 20 by retracting in a writing portion axial direction relative to the shaft cylinder 10, and separate from the writing portion 20 by moving forward in the opposite direction. The arm portion 50 is journaled at the cylinder shaft 10 so as to rotate the cap portion 40 in a separated state from the writing portion 20, in an intersection direction to the writing portion axial direction.

Description

  The present invention relates to a writing instrument with a cap that covers or exposes a writing part with a cap that is attached and detached.

This type of prior art includes, for example, a shaft cylinder (pen shaft 1), a writing section (pen nib 3) fixed to the front end side of the shaft cylinder, and the writing section as described in Patent Document 1. A sealing tool (9) partially covering the upper and lower portions with a notch-shaped holding part (11), and a frame hook (4) having the sealing tool (9) on one end side and pivotally supported on the other end by the shaft tube When the sealing tool (9) is removed from the writing part (pen nib 3), the notch-shaped holding part (11) of the sealing tool (9) is crossed in the crossing direction with respect to the writing part (pen nib 3). There is a ballpoint pen in which the sealing tool (9) is rotated so as to pass through.
Further, as another conventional technique, for example, as described in Patent Document 2, a shaft tube (outer barrel 12), and a writing portion (pen nib 16) that is immersed so as to protrude to the front end side of the shaft tube. A cap (20) for closing the front end opening of the shaft cylinder, an arm (18) having the cap on one end and the other end pivotally supported by the shaft cylinder, and the rotational movement of the arm (18). A gear tooth (32) and a sleeve gear tooth (28) for converting into a linear motion of the portion (pen nib 16), and in conjunction with the rotation of the arm (18) accompanying the opening operation of the cap (20) The pen part (pen tip 16) protrudes from the front end of the shaft cylinder, and the writing part (pen tip 16) is inserted into the front end of the shaft cylinder in conjunction with the reverse rotation of the arm (18). A retractable writing instrument "is known.
According to these conventional writing instruments, since the cap is used without being completely separated from the shaft tube, it is possible to prevent the cap from being lost.

However, in the former prior art, since the writing tool which is a ball-point pen tip is protected by the notched holding part, the side of the holding part communicates with the outside, and the writing part cannot be sealed. For this reason, in the unlikely event that ink leaks from the writing portion, the leaked ink may flow out to the outside. In particular, when the writing unit is configured as a pen tip of a sign pen or a marker pen, it is difficult to seal the pen tip, and in addition to the ink outflow as described above, the ink may be volatilized. is there.
In the latter prior art, since the writing part moves in the front-rear direction, there is a possibility that the writing part may rattle back and forth due to a change in writing pressure during writing. In addition, since the writing unit is caused to appear and disappear in conjunction with the rotation of the arm, the mechanism is complicated.

Japanese Utility Model Publication No. 61-70082 Special table 2011-500371 gazette

  The present invention has been made in view of the above-described conventional circumstances, and a problem to be solved is that a cap can be prevented from being lost and a decline in writing performance can be prevented, and a cap having a simple structure can be provided. It is to provide a writing instrument.

  One means for solving the above-mentioned problems includes a shaft cylinder, a writing part protruding from the shaft cylinder, a cap part covering the writing part, and an arm part connecting the cap part to the front end side. The cap portion is provided so as to be separated from the writing portion by moving in the opposite direction by covering the writing portion by retreating along the writing portion axial direction relative to the shaft cylinder, The cap portion in a state of being separated from the writing portion is pivotally supported by the shaft cylinder so as to be rotated in a direction intersecting the writing portion axial direction.

  Since the present invention is configured as described above, it is possible to prevent a cap from being lost and to prevent a decrease in writing performance and to provide a writing instrument with a cap having a simple structure. .

The perspective view which shows an example of the writing instrument with a cap concerning this invention. Operation | movement explanatory drawing of the writing instrument with the cap. The side view of the writing instrument with the cap. (IV)-(IV) sectional view taken on the line of FIG. It is operation | movement explanatory drawing which cuts and shows a principal part about the writing instrument with a cap, (a) shows the state which put the cap part on the writing part, (b) shows the state which pulled apart the cap part from the writing part. It is operation | movement explanatory drawing which cuts and shows the principal part about the writing instrument with a cap, (c) is the state which rotated the cap part spaced apart from the writing part, (d) retreats the rotated cap part. Indicates the state. The use condition figure of the writing instrument with the cap. The state which connected two or more writing instruments with the same cap is shown. The perspective view which shows the other examples of the writing instrument with a cap concerning this invention. It is sectional drawing which shows operation | movement of the writing instrument with a cap of FIG. 8, (a) shows the state which put the cap part on the writing part, (b) shows the state by which the cap part was pulled apart from the writing part. It is sectional drawing which shows operation | movement of the writing instrument with the cap, (c) shows the state which rotated the cap part, (d) shows the state which advanced the cap part after rotation.

The first feature of the present embodiment is provided with a shaft tube, a writing portion protruding from the shaft tube, a cap portion covering the writing portion, and an arm portion connecting the cap portion to the front end side. The cap portion is provided so as to be separated from the writing portion by moving in the opposite direction by covering the writing portion by retreating along the writing portion axial direction relative to the shaft cylinder, The cap portion in a state of being separated from the writing portion is pivotally supported by the shaft tube so as to be rotated in a direction intersecting the writing portion axial direction.
According to this configuration, the cap portion can be moved back and forth along the writing portion axial direction to cover the writing portion or separated from the writing portion, and in the state where the cap portion is separated from the writing portion, the arm portion By rotating, the cap part and the arm part can be prevented from interfering with writing.
In addition, since the cap portion is structured to be attached and detached by moving it back and forth in the writing portion axial direction, it is possible to improve the sealing performance by forming the cap portion so as to be continuous in the circumferential direction of the writing portion. . Further, there is no need for a conventional mechanism for moving the writing unit forward and backward relative to the shaft tube.
Therefore, it is possible to prevent the cap portion from being lost, to prevent a decrease in writing performance, and to have a simple structure.

As a second feature, the arm portion is pivotally supported so as to advance and retreat in the writing portion axial direction with respect to the shaft cylinder, and by this advancement and retraction, the cap portion is put on the writing portion or separated from the writing portion. To do.
According to this configuration, the cap portion can be advanced and retracted by a structure that pivotally supports the arm portion so that the arm portion can advance and retreat, and the advance and retreat structure can be a specific simple structure.

As a third feature, the arm unit is configured to retract the cap unit and the arm unit in a state where the cap unit is spaced apart from the writing unit and rotated by a predetermined amount in a direction intersecting the writing unit axial direction. Was supported by the shaft tube.
According to this configuration, the cap portion can be further retracted in a state in which the cap portion is rotated. As a result, it is possible to more effectively prevent the cap portion removed from the writing portion from interfering with writing. it can.

As a fourth feature, the shaft cylinder includes a first guide groove that guides the advancement and retraction of the arm portion when the cap portion covers or separates from the writing portion, and the cap portion includes the writing portion. A second guide groove is provided for guiding the advance and retreat of the arm portion when the arm portion advances and retreats while being separated from the portion and rotated by a predetermined amount.
According to this configuration, when the cap portion is put on or separated from the writing portion, the arm portion can be guided to the first guide groove and moved forward and backward, and the cap portion is rotated away from the writing portion. In this case, the arm can be guided to the second guide groove to advance and retreat.

As a fifth feature, a guide convex portion is provided on a side portion of the shaft tube, and a long guided concave portion that fits the guide convex portion is provided in the arm portion, and the arm portion is a writing portion shaft. The guide convex portion guides the guided concave portion in the longitudinal direction of the guided concave portion when moving forward and backward, and when the arm portion rotates by a predetermined amount, the guide convex portion is guided by the guided concave portion. The rotary shaft is located at the rear end portion in the longitudinal direction of the concave portion and rotates the arm portion.
According to this configuration, when the cap portion is put on or separated from the writing portion, the guide convex portion on the shaft tube side is fitted into the elongated guided concave portion of the arm portion, and the cap and the arm portion are fitted. Can be stabilized.
Further, when the arm portion is rotated by a predetermined amount, the guide convex portion is located at the rear end portion in the longitudinal direction of the guided concave portion, so that the rotation of the cap and the arm portion can be stabilized.

As a sixth feature, the guide convex portion is a first guide convex portion, the guided concave portion is a first guided concave portion, a second guide convex portion is provided on the shaft tube, and the The arm portion is provided with a second guided recessed portion that fits into the second guide convex portion, and the second guided recessed portion is configured such that the cap portion covers the writing portion or the cap portion is separated from the writing portion. A first guide portion that guides the advancement and retraction of the arm portion when moving, and a second guide portion that guides the rotation of the arm portion when the cap portion rotates in a state of being separated from the writing portion, The cap part communicates with a third guide part that guides the advancement and retraction of the arm part when the cap part moves away from the writing part and rotates in a predetermined amount.
According to this configuration, it is possible to stably and smoothly perform a series of operations in which the cap and the arm are moved forward, rotated and retracted.

As a seventh feature, in the shaft cylinder, a dimension in one direction orthogonal to the writing part axial direction is smaller than a dimension in the other direction orthogonal to the one direction and orthogonal to the writing part axial direction. It is formed in a flat shape, and the cap part and the arm part are provided so as to rotate along the other direction.
According to this configuration, it is possible to ensure a relatively wide area range for the advancement / retraction of the arm part, and consequently, the advance / retreat operation of the arm part can be performed stably and smoothly.

As an eighth feature, the shaft cylinder has a connecting portion on one end side surface in the one direction, and a connected portion detachable from the connecting portion on the other end side surface in the same direction. .
According to this configuration, it is possible to connect a plurality of writing instruments with caps in a space-saving manner, and as a result, it is possible to improve the storage properties, transportability, etc. of the writing instruments with caps.

  Further, as a more preferable feature, in order to perform the operation of the arm part more stably and smoothly, the arm part is provided in a pair with the shaft tube interposed therebetween.

  In the present specification, “writing portion axial direction” means a direction in which the center line of the writing portion extends. Further, “front” means a direction side in which the cap is separated from the shaft cylinder. Further, “rear” means the direction in which the cap approaches the shaft cylinder. The “writing portion radial direction” means a direction orthogonal to the writing portion axial direction.

  Next, a preferred specific example of the above embodiment will be described in detail with reference to the drawings.

<About the writing instrument 1 with a cap>
As shown in FIGS. 1 to 4, the writing instrument 1 with a cap includes a shaft tube 10, a writing unit 20 provided immovably on the shaft tube 10, and ink that supplies ink to the writing unit 20 in the shaft tube 10. An impregnated body 30, a cap part 40 that covers the writing part 20, and an arm part 50 that connects the cap part 40 to the front end side and is supported by the shaft cylinder 10 on the rear end side are provided.

  The shaft cylinder 10 includes a main body 11 having an ink impregnated body 30 and a cylindrical holding section 12 that protrudes forward from the main body 11 and holds the writing unit 20.

The main body 11 has a dimension in one direction (vertical direction in FIG. 8) orthogonal to the writing unit axial direction, and the other direction (vertical direction in FIG. 2) orthogonal to the one direction and also orthogonal to the writing unit axial direction. It is formed in a flat shape smaller than the dimension of (direction), and has a cylindrical ink storage chamber 11a in which the ink impregnated body 30 is contained. In FIG. 3, reference numeral 11 a 1 denotes a plurality of ribs that support the ink impregnated body 30.
According to the illustrated example, the main body portion 11 is configured by fitting the half portion 10a and the other half portion 10b, which are divided in the thickness direction (in other words, the one direction or the up and down direction in FIG. 8), into an uneven shape. (See FIG. 1 and FIG. 3). Reference numeral 10b1 in FIG. 3 is a part of the other half portion 10b, and is a substantially cylindrical fitting portion that fits into the inner surface of the ink containing chamber 11a in the one half portion 10a.
In addition, as another example of the main-body part 11, it can also be set as the aspect etc. which consist of several members divided | segmented before and behind the writing part axial direction, for example.

  Further, a first guide for guiding the arm portion 50 in the writing portion axial direction (left and right direction in FIG. 2) is provided on the side portion of the main body portion 11 (specifically, the outer surfaces of both end portions in the thickness direction of the main body portion 11). The groove 11b, the second guide groove 11c for guiding the arm part 50 back and forth in a state where the cap part 40 is separated from the writing part 20 and rotated by a predetermined angle, and the first guide groove 11b and the second guide. A first guide protrusion 11d and a second guide protrusion 11e located at the intersection of the grooves 11c are provided (see FIGS. 1 and 2).

  The first guide groove 11b is substantially the same width as the arm portion 50 and has a depth equivalent to the thickness of the arm portion 50, and has a concave cross section extending in the axial direction of the writing portion 20. The arm 50 is slidably fitted back and forth.

  The second guide groove 11c is a groove having the same cross-sectional shape as the first guide groove 11b. The second guide groove 11c is arranged so as to incline and intersect with the first guide groove 11b so that the arm portion 50 can slide back and forth. Fit. On the rear end side in the second guide groove 11c, there is provided a regulation protrusion 11c1 that abuts on the rear end portion of the arm portion 50 when moved rearward and restricts the rearward movement of the arm portion 50. .

In addition, a first guide convex portion 11d and a second guide convex portion 11e are provided on the bottom surface of the intersecting portion of the first guide groove 11b and the second guide groove 11c.
Each of the first guide convex portion 11d and the second guide convex portion 11e is a columnar protrusion that protrudes in a direction substantially orthogonal to the writing portion axial direction, and is fitted to an arm portion 50 described later to be arm portions. Guide 50 moves.

In addition, the connecting portion 11f and the connected portion 11g (FIG. 8) are provided on one outer surface in the thickness direction of the main body portion 11 and the other outer surface at positions that do not overlap the first guide groove 11b and the second guide groove 11c. A plurality of reference) are provided.
The connecting portion 11f is a convex portion having a cross-shaped cross section. 11 g of to-be-connected parts are recessed parts substantially the same shape as the connection part 11f, and are formed so that attachment / detachment with respect to the connection part 11f is possible.
In the illustrated example, the connecting portion 11f and the connected portion 11g are formed in a cross shape to improve the connection strength. However, as another example, the connecting portion 11f and the connected portion 11g A shape other than the illustrated example (for example, a columnar shape, a polygonal shape, or the like) is also possible.

In addition, the cylindrical holding portion 12 is formed in a cylindrical shape that protrudes forward from the front end of the main body portion 11 along the writing portion axial direction and that communicates with the interior of the ink holding chamber 11a. According to the illustrated example, the cylindrical holding portion 12 is formed integrally with the main body portion 11. However, a member separate from the main body portion 11 may be connected to the main body portion 11. is there.
A plurality of vertical ribs 12 a that are in contact with the outer peripheral surface of the writing unit 20 and hold the writing unit 20 are provided on the inner peripheral surface of the cylindrical holding unit 12 at intervals in the circumferential direction. The space between the vertical ribs 12 a functions as a ventilation path for introducing outside air into the ink storage chamber 11 a as the ink impregnation body 30 discharges ink.
The cylindrical holding part 12 in the illustrated example is provided to be inclined at a predetermined angle with respect to the longitudinal direction of the main body part 11 (an oblique direction extending from the upper left to the lower right according to FIG. 3). The predetermined angle is appropriately set so that the linear portion 21 of the writing unit 20 abuts in parallel with the writing surface X when the writing instrument 1 with the cap is held and writing is performed (see FIG. 7). Is set.

The writing unit 20 is a shaft-like fiber bundling body formed by bundling a large number of synthetic fibers. The rear end of the writing unit 20 is press-fitted into the ink-impregnated body 30 in the main body 11 and the front end is a cylinder at the front end of the main body 11. The ink that protrudes forward from the shape holding portion 12 and that is impregnated in the ink impregnated body 30 is guided forward by capillary forces between a large number of fibers (see FIG. 3).
According to the illustrated example, the front end portion of the writing portion 20 is formed in a wedge shape whose thickness is gradually narrowed toward the front, and the linear portion 21 whose tip end is inclined on the writing surface X (see FIG. 7). It is made to contact. The writing unit 20 having such a shape may be referred to as a chisel type.
The linear portion 21 is formed in a linear shape that is inclined with respect to the axial diameter direction of the shaft and is parallel to both end faces of the flat main body 11 in the thickness direction. According to this configuration, it is possible to write a thick line as much as possible when the shaft tube 10 is sandwiched and gripped in the thickness direction (see FIG. 7).

  The ink impregnated body 30 is obtained by impregnating a cotton pad or felt made of a large number of synthetic fibers with ink.

The cap part 40 is formed in a bottomed cylindrical shape with the front end side closed. The cap part 40 covers the writing part 20 by retreating along the writing part axial direction so as to face the shaft tube 10, and advances in the opposite direction to thereby write the writing part. It is provided to be away from
The cap part 40 fits the inner edge of the rear end side to the outer peripheral surface of the front end of the cylindrical holding part 12 of the shaft cylinder 10 to keep the inside airtight.
The cap portion 40 is integrally connected to the front end of the arm portion 50. According to the illustrated example, the cap portion 40 is integrally formed with the arm portion 50. However, as another example, a member separate from the arm portion 50 is armed. It is also possible to adopt a mode connected to the unit 50.

The arm part 50 can be advanced and retracted in the axial direction of the writing part so that the cap part 40 is put on the writing part 20 or separated from the writing part 20, and the cap part 40 in a state separated from the writing part 20 is written. The shaft tube 10 is configured so that the cap portion 40 can be rotated by a predetermined amount in the intersecting direction with respect to the axial direction and can be moved back and forth while being separated from the writing unit 20 and rotated by the predetermined amount in the intersecting direction. It is pivotally supported.
The arm portion 50 is provided in a pair with the shaft tube 10 interposed therebetween. The front end sides of the pair of arm portions 50, 50 are connected to the rear end side of the cap portion 40, and the rear end sides of the arm portions 50, 50 are the first guides on the end surfaces in the thickness direction of the shaft tube 10. It fits into the groove 11b, the second guide groove 11c, the second guide convex portion 11e, the first guide convex portion 11d, and the like.

More specifically, each arm portion 50 has a rectangular flat plate shape elongated in the writing portion axial direction. When the cap portion 40 is attached to or detached from the writing portion 20, the arm portion 50 is fitted in the first guide groove 11b. When the cap part 40 is separated from the writing part 20 and rotated by a predetermined amount, it fits into the second guide groove 11c and advances and retreats.
Each arm portion 50 has a long first guided concave portion 51 that fits the first guide convex portion 11d of the shaft tube 10 and a second fit that fits the second guide convex portion 11e of the shaft tube 10. The guided recessed portion 52 is provided.

According to the illustrated example, the first guided recessed portion 51 is a linear long through hole extending in the longitudinal direction of the arm portion 50, and is loosely fitted to the first guide convex portion 11 d on the shaft tube 10 side. Yes.
The length of the first guided recessed portion 51 is such that the cap unit 40 can cover the writing unit 20 or be separated from the writing unit 20, and the cap unit 40 can be separated from the writing unit 20. The arm portion 50 is appropriately set so that the arm portion 50 can be housed on the shaft tube 10 side or protrude from the shaft tube 10 side while being rotated by a predetermined amount.
In addition, when the cap portion 40 is rotated away from the writing portion 20, the first guided recessed portion 51 has the rear end portion of the first guided recessed portion 51 as the first guide convex portion 11d. Abut. That is, the first guide convex portion 11d is located at the rear end portion in the longitudinal direction of the first guided concave portion 51 and serves as a rotation axis when the arm portion 50 is rotated (FIG. 5B to FIG. 5). 6 (c)).

  Further, as shown in FIG. 2, the second guided recessed portion 52 guides the advancement and retreat of the arm portion 50 when the cap portion 40 covers the writing portion 20 or the cap portion 40 is separated from the writing portion 20. The first guide part 52a, the second guide part 52b for guiding the rotation of the arm part 50 when the cap part 40 is turned away from the writing part 20, and the cap part 40 are separated from the writing part 20. A third guide portion 52c that guides the advance / retreat of the arm portion 50 when moving forward / backward in a state where it has been rotated by a predetermined amount is communicated.

  The first guide part 52 a is a linear through hole along the longitudinal direction of the arm part 50. The length of the first guide part 52a is appropriately set such that the cap part 40 covers the writing part 20 or is separated from the writing part 20 to expose the writing part 20.

  The second guide portion 52b is an arc-shaped through hole along a turning locus when the arm portion 50 is turned, and one end side communicates with the first guide portion 52a and the other end side is a third guide portion. 52c.

The third guide portion 52c is a linear through hole that is substantially parallel to the first guide portion 52a and is longer than the first guide portion 52a. The length of the third guide portion 52c is such that the arm portion 50 is housed on the shaft tube 10 side or protrudes from the shaft tube 10 side in a state where the cap portion 40 is separated from the writing unit 20 and rotated by a predetermined amount. It is set appropriately so that the above can be achieved.
On both side surfaces on the front end side of the third guide portion 52c, climbing protrusions 52c1 and 52c1 are provided so as to partially narrow the width of the third guide portion 52c. The overpass projection 52c1 is disposed at a position away from the front end of the third guide portion 52c by approximately the outer diameter of the second guide convex portion 11e.
The distance between the both-passing projections 52c1 and 52c1 is set to be slightly smaller than the outer diameter of the second guide convex portion 11e.
According to this configuration, when the arm portion 50 is retracted along the second guide groove 11c, the second guide convex portion 11e elastically expands between the both riding over projections 52c1 and 52c1, and these overcoming projections 52c1, It passes over 52c1 and is located at the foremost end of the third guide portion 52c. Therefore, the arm part 50 is held so as not to move easily even if it touches the hand during writing.
Further, when the arm part 50 is forcibly advanced from the above state, the second guide convex part 11e gets over the both riding over protrusions 52c1 and 52c1 in the opposite direction, so that the arm part 50 can freely advance and retract. become.
In addition, according to the illustrated example, the ride-over protrusion 52c1 is provided on both side surfaces on the front end side of the third guide portion 52c. However, as another example, the ride-over protrusion 52c1 may be provided only on one side surface. Good.

  Next, the characteristic effect of the writing instrument 1 with a cap having the above configuration will be described in detail.

5A, the cap unit 40 is covered with the writing unit 20, and the inner peripheral surface of the rear end side of the cap unit 40 is the front end side of the cylindrical holding unit 12 in the shaft cylinder 10. The outer periphery is closely fitted over the entire circumference.
Therefore, in this state, even if ink flows out from the writing unit 20, it is possible to prevent the ink from flowing out.

In this state, when the cap portion 40 is pulled along the writing portion axial direction, the cap portion 40 and the arm portion 50 thereof are moved along the first guide groove 11b as shown in FIGS. Slide forward. At this time, the first guided concave portion 51 of the arm portion 50 advances straight along the first guide convex portion 11d. Further, the second guided recessed portion 52 advances straight along the first guide portion 52a along the second guide convex portion 11e.
The cap portion 40 is separated from the writing portion 20 by the straight advance, the first guide convex portion 11d abuts on the rear end portion of the first guided concave portion 51, and the rear end of the first guide portion 52a. The second guide convex portion 11e comes into contact with the portion (see FIG. 5B).

  Next, as shown in FIG. 6C, when the cap portion 40 and the arm portion 50 are pressed in one direction intersecting the writing portion axial direction, the cap portion 40 and the arm portion 50 are moved to the first guide protrusion. It rotates about the part 11d, the side surface of the arm part 50 abuts on the inner side surface of the second guide groove 11c, and the second guide part 52b and the third guide part 52c of the second guided recessed part 52 The second guide convex portion 11e is positioned at the intersecting portion, and its rotation is stopped.

  Next, as shown in FIG. 6D, when the cap part 40 and the arm part 50 are pressed from the front, the cap part 40 and the arm part 50 recede linearly along the second guide groove 11c. Then, the rear end portion of the arm portion 50 comes into contact with the regulation protrusion 11c1. Further, along with this retreat, the first guided recessed portion 51 retreats along the first guide convex portion 11d, and the third guide portion 52c of the second guided recessed portion 52 becomes the second guide convex portion 11e. Retreat along. And the 2nd guide convex part 11e is latched so that the arm part 50 may not move easily by getting over the riding over protrusion 52c1 of the 3rd guide part 52c front end side.

  In this state, as shown in FIG. 7, the main body 11 is sandwiched between the thumb p and the index finger i in the thickness direction and is received by the middle finger m from the lower side thereof. Writing is performed with the linear portion 21 in contact with the writing surface X. At this time, since the cap portion 40 is locked in the retracted state as described above, it does not interfere with writing.

  Moreover, what is necessary is just to perform operation | movement contrary to the above, when putting the cap part 40 on the writing part 20. FIG.

Moreover, as shown in FIG. 8, the writing instrument 1 with a cap of the said structure can be connected so that two or more may overlap. If it demonstrates in detail, if the upper writing instrument 1 with an upper cap will be piled up and pressed with respect to the lower writing instrument 1 with a cap, the upper writing instrument 1 with a cap with respect to the to-be-connected part 11g of the lower writing instrument 1 with a cap. The connecting portions 11f are fitted together, and the upper and lower writing instruments 1 and 1 with caps are in a stable connection state.
Therefore, the writing instrument 1 with a plurality of caps can be connected in a space-saving manner, and as a result, the storage property, transportability, etc. of the writing instrument 1 with a cap can be improved.

<About the writing instrument 2 with a cap>
Next, another specific example of the present embodiment will be described. In addition, in the writing instrument with a cap shown below, about the location of substantially the same structure as the writing instrument 1 with a cap mentioned above, the detailed description which overlaps is abbreviate | omitted by attaching | subjecting the same code | symbol.

  The writing instrument 2 with a cap shown in FIGS. 9 to 11 includes a shaft cylinder 10 ′, a writing section 20 provided immovably on the shaft cylinder 10 ′, and ink that supplies ink to the writing section 20 in the shaft cylinder 10 ′. An impregnated body (not shown), a cap part 40 'covered with the writing part 20, and a pair of arm parts 51' with the cap part 40 'connected to the front end side and supported at the rear end side by the shaft cylinder 10 , 52 ′, a first urging member 60 that rotates the shaft cylinder 10 with respect to the cap portion 40 ′ and the arm portions 51 ′, 52 ′ when the cap portion 40 ′ is separated from the writing portion 20, and the arm portion And a second urging member 70 that urges the shaft cylinder 10 ′ toward 51 ′ and 52 ′ (leftward according to FIG. 10).

  The shaft cylinder 10 ′ has a main body portion 11 ′ containing an ink impregnated body (not shown) and a cylindrical holding portion 12 ′ that protrudes forward from the main body portion 11 ′ and holds the writing portion 20.

The main body portion 11 ′ has a dimension in one direction (vertical direction in FIG. 10) orthogonal to the writing portion axial direction, and the other direction (in FIG. 10) orthogonal to the one direction and also orthogonal to the writing portion axial direction. It is formed in a flat hollow shape smaller than the dimension in the depth front direction (see FIG. 9), and has an ink impregnated body (not shown) in its internal space. The ink impregnated body (not shown) having the same structure as the ink impregnated body 30 of the writing instrument 1 with a cap can be used.
Support shafts 11 a ′ and 11 b ′ for supporting arm portions 51 ′ and 52 ′ described later are provided at both ends in the one direction of the main body portion 11 ′.

  In the figure, reference numerals 11c 'and 11d' denote a concave portion and a convex portion for attaching and detaching the plurality of writing instruments 2 with caps in the thickness direction.

  The cylindrical holding portion 12 ′ is formed in a cylindrical shape that protrudes forward along the writing portion axial direction from the front end of the main body portion 11 ′ and communicates the inside thereof with the space in the main body portion 11 ′. A plurality of ribs (not shown) that hold the outer peripheral surface of the writing unit 20 immovably are provided in the cylindrical holding unit 12 ′, and the gap between the ribs introduces outside air as ink is discharged. Acts as a vent.

The cap portion 40 ′ is formed in a bottomed cylindrical shape with the front end side closed, and covers the writing portion 20 by retreating along the writing portion axial direction relative to the shaft cylinder 10 ′, and by moving in the reverse direction. It is provided so as to be away from the writing unit 20.
The cap portion 40 'fits the inner edge of the rear end side to the outer peripheral surface of the cylindrical holding portion 12' front end of the shaft tube 10 'over the entire circumference, and holds the inside airtight.
The cap portion 40 ′ is integrally connected to the front ends of the arm portions 51 ′ and 52 ′.
According to the illustrated example, the cap portion 40 ′ is composed of a plurality of members, but as other examples, a configuration composed of a single member, a configuration integral with arm portions 51 ′, 52 ′ described later, and the like. Is possible.

The pair of arm portions 51 ′ and 52 ′ are formed in an integral U shape, and the cap portion 40 ′ is fitted and fixed to the front end side thereof.
Further, the rear end side between the arm portions 51 ′ and 52 ′ is pivotally supported so as to be movable forward and backward in the writing portion axial direction with respect to the shaft tube 10 ′.

One arm portion 51 ′ has a support hole 51 a ′ through which the support shaft 11 a ′ of the shaft tube 10 is inserted and supported in the inner wall portion facing the other arm portion 52 ′.
Similarly, the other arm portion 52 ′ has a support hole 52 a ′ through which the support shaft 11 b ′ of the shaft tube 10 is inserted and supported on the inner wall portion facing the one arm portion 51 ′.

  The support holes 51a 'and 52a' are long holes extending in the longitudinal direction of the arm portions 51 'and 52', respectively, and support the support shafts 11a 'and 11b' so that the support shafts 11a 'and 11b' can rotate and advance and retract.

The first urging member 60 is wound around the support shaft 11a ′ with one end side fastened to the support shaft 11a ′ on the shaft tube 10 ′ side and the other end side in contact with one arm portion 51 ′. It is a torsion coil spring, and urges the arm 51 'to rotate in one direction.
The first urging member 60 is configured such that when the arm portions 51 ′ and 52 ′ move forward and backward relative to the shaft tube 10 ′, the other end side (according to FIG. 10, The left end) is brought into sliding contact with the inner wall surface of the arm 51 ′.

  The second urging member 70 is fixed at one end to the support shaft 11b ′ on the shaft tube 10 ′ side so as not to prevent the rotation of the support shaft 11b ′, and at the other end to the other arm portion 52. The axial cylinder 10 ′ is attached to the retracting direction (leftward according to FIG. 11) with respect to the arm portion 52 ′ in a state where the cap portion 40 ′ is disposed in front of the writing portion 20. Rush.

  Next, the characteristic effect of the writing instrument 2 with a cap having the above configuration will be described in detail.

In the writing part storage state shown in FIG. 10A, the writing part 20 is covered with the cap part 40 ', and the inner peripheral surface on the rear end side of the cap part 40' is the cylindrical holding part 12 in the shaft cylinder 10 '. The front end side outer peripheral surface of 'is closely fitted over the entire circumference, and this fitted state is held by the tensile force of the second urging member 70.
Therefore, in this state, even if ink flows out from the writing unit 20, it is possible to prevent the ink from flowing out.

In this state, when the shaft tube 10 ′ is pulled along the writing portion axial direction by a finger or the like with respect to the cap portion 40 ′, the shaft tube 10 ′ is moved to the second position as shown in FIGS. The urging member 70 slides backward (to the right according to FIG. 11) against the tensile force. At this time, the support shafts 11a 'and 11b' on the side of the shaft tube 10 'go straight rearward along the support holes 51a' and 52a 'of the arm portions 51' and 52 '.
The writing portion 20 is separated from the cap portion 40 ′ by the straight advance, and the support shafts 11a ′ and 11b ′ on the shaft tube 10 ′ side are respectively supported by the support holes 51a ′ and 52a of the arm portions 51 ′ and 52 ′. It abuts against the inner edge of the rear end (see FIG. 10B).

Next, when the finger or the like is released from the shaft tube 10 ′, the shaft tube 10 ′ is automatically rotated in the direction intersecting the writing portion axial direction by the urging force of the first urging member 60, and the original state is restored. The position is rotated 180 degrees (see FIG. 11C).
Then, at this position after rotation, the shaft cylinder 10 ′ is pulled by the second urging member 70 and approaches the cap portion 40 ′ and the arm portions 51 ′ and 52 ′, and the support shafts 11a ′ and 11b ′. Are brought into contact with the inner edges of the rear ends of the support holes 51a ′ and 52a ′, respectively (see FIG. 11D).

  In this state, the main body portion 11 ′ is sandwiched between the thumb and forefinger in the thickness direction and is received by the middle finger from the lower side, and writing is performed (not shown). At this time, the cap portion 40 ′ and the arm portions 51 ′ and 52 ′ are located closer to the rear portion of the shaft cylinder 10 ′ (see FIG. 11D), and thus do not interfere with writing.

  In addition, when the writing part 20 is fitted with the cap part 40 ', the operation opposite to that described above may be performed.

  Note that, according to the illustrated example, as a preferable structure for moving the cap portion 40 (or 40 ′) forward and backward, and rotating, the arm portion 50 (or 51 ′, 52 ′) integrated with the cap portion 40 (or 40 ′) is pivoted. The cylinder 10 (or 10 ′) is pivotally supported so as to be able to advance and retreat, and can be rotated. However, as another example, the arm part is pivotally supported with respect to the shaft cylinder and the cap part is advanced and retracted relative to the arm part. It is also possible to have a connected aspect.

  Further, according to the illustrated example, as a particularly preferable aspect, the cap portion 40 (or 40 ′) is supported by the pair of arm portions 50 and 50 (or 51 ′ and 52 ′). A configuration in which the cap part is supported by a single arm part is also possible.

  In addition, according to the illustrated example, the shaft tube 10 (and 10 ′) is formed in a flat shape as a structure that is particularly space-saving and has good storage properties and transportability. However, as another example, the shaft tube may be cylindrical or It can also be formed in other shapes such as a prismatic shape.

  Moreover, although the writing instruments 1 and 2 with a cap of the illustrated example are configured as a marking pen including a line marker, a fluorescent pen, a fluorescent marker, a whiteboard marker, a felt pen, a sign pen, etc., as other examples, substantially the same structure It is also possible to configure a ballpoint pen, a correction pen, etc. using

  Further, according to the illustrated example, the shaft cylinders 10, 10 ′, the cap portions 40, 40 ′, and the arm portions 50, 51 ′, 51 ′ are each formed of a synthetic resin material, but the caps 40, 40 ′ are attached and detached. Alternatively, it may be formed of another material such as a metal material if it has elasticity enough to allow the two marking pens 1 and 1 (or 2 and 2) to be connected and disconnected.

  In addition, as a configuration added to the illustrated writing instrument 2 with a cap, the arm portions 51 ′ and 52 ′ are turned into the shaft tube 10 ′ while the shaft tube 10 ′ is spaced apart from the cap portion 40 ′ and rotated approximately 180 degrees. You may make it provide the latching means latched so that engagement / disengagement is possible. For example, the locking means is provided with a locking projection on one of the arm portions 51 ′, 52 ′ and the shaft tube 10 ′, and over the other side by the rotation to fit in the opposite direction. What is necessary is just to provide the to-be-latched protrusion which comes off by rotation.

1, 2: Writing instrument with cap 10, 10 ': Shaft tube 11, 11': Main body 11b: First guide groove 11c: Second guide groove 11d: First guide protrusion 11e: Second guide protrusion Part 11f: Connecting part 11g: Connected part 12: Cylindrical holding part 20: Writing part 40, 40 ': Cap part 50, 51', 52 ': Arm part 51: First guided recessed part 52: Second Guided recess 52a: first guide 52a
52b: 2nd guide part 52c: 3rd guide part

Claims (8)

A shaft tube, a writing portion protruding from the shaft tube, a cap portion covering the writing portion, and an arm portion connecting the cap portion to the front end side,
The cap part is provided so as to be separated from the writing part by covering the writing part and moving in the opposite direction by retreating along the writing part axial direction relative to the shaft cylinder,
The writing instrument with a cap, wherein the arm part is pivotally supported by the shaft cylinder so as to rotate the cap part in a state separated from the writing part in a direction intersecting the writing part axial direction.   The arm portion is pivotally supported so as to advance and retreat in the writing portion axial direction with respect to the shaft cylinder, and the advancing and retreating covers the writing portion and separates the writing portion from the writing portion. Item 1. A writing instrument with a cap according to Item 1.   The arm portion is supported by the shaft tube so that the cap portion and the arm portion are retracted in a state where the cap portion is separated from the writing portion and rotated by a predetermined amount in a direction intersecting the writing portion axial direction. The writing instrument with a cap according to claim 2.   The shaft tube includes a first guide groove for guiding the advancement and retraction of the arm portion when the cap portion is covered or separated from the writing portion, and the cap portion is separated from the writing portion by a predetermined amount. The writing instrument with a cap according to claim 3, wherein a second guide groove is provided for guiding the advance and retreat of the arm portion when the arm is advanced and retracted in a moved state. A guide convex portion is provided on a side portion of the shaft tube, and a long guided concave portion that fits the guide convex portion is provided on the arm portion.
When the arm portion advances and retracts in the writing portion axial direction, the guide convex portion guides the guided concave portion in the longitudinal direction of the guided concave portion, and when the arm portion rotates by a predetermined amount, The writing instrument with a cap according to claim 3 or 4, wherein the guide convex portion is positioned at a rear end portion in the longitudinal direction of the guided concave portion and serves as a rotation shaft for rotating the arm portion. The guide convex portion is a first guide convex portion, and the guided concave portion is a first guided concave portion,
The shaft tube is provided with a second guide convex portion, and the arm portion is provided with a second guided concave portion that fits into the second guide convex portion,
The second guided recessed portion includes a first guide portion that guides the advance and retreat of the arm portion when the cap portion covers the writing portion or the cap portion is separated from the writing portion, and the cap portion includes A second guide portion that guides the rotation of the arm portion when rotating in a state of being separated from the writing portion; and the cap portion is spaced from the writing portion and is advanced and retracted in a state of being rotated by a predetermined amount. The writing instrument with a cap according to claim 5, wherein the writing instrument is configured to communicate with a third guide portion that guides the advance and retreat of the arm portion.   The shaft cylinder is formed in a flat shape in which the dimension in one direction orthogonal to the writing part axial direction is smaller than the dimension in the other direction orthogonal to the one direction and orthogonal to the writing part axial direction, The writing instrument with a cap according to any one of claims 1 to 6, wherein the cap part and the arm part are provided so as to rotate along the other direction.   The shaft cylinder has a connecting portion on a surface on one end side in the one direction, and has a connected portion detachably attached to the connecting portion on a surface on the other end side in the same direction. A writing instrument with a cap according to any one of 1 to 7.

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