JPH09202095A - Writing instrument with stick-shaped material feeding container - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a writing instrument with a stick-shaped object feeding container that can reduce the number of parts and reduce the manufacturing cost. SOLUTION: An outer cylinder 1, a lead-out mechanism 3 inserted into the outer cylinder 1 and biased rearward, and an opening 1c formed in a front side surface of the outer cylinder 1 are attached to the lead-out mechanism. 3, an operating member 4 capable of driving forward movement of the outer cylinder 3, a clip member 20 attached to the rear end portion of the outer cylinder 1, and a rod-shaped object feeding container 11. The clip member 20 integrally has a clip portion 20a extending along the outer cylinder outside the outer cylinder and an inner cylinder portion 20c arranged inside the outer cylinder, and is a guide cylinder for the rod-shaped object feeding container 11. The tip of 14 is connected to the inner cylinder portion 20c of the clip member 20 so as not to rotate relative to it.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a writing instrument with a stick-shaped object feeding container, and more particularly to a writing instrument with a stick-shaped object feeding container capable of reducing the number of parts.

[0002]

2. Description of the Related Art Conventionally, as a writing instrument with a stick-shaped object feeding container, for example, Japanese Patent Application No. 5-18343 proposed by the present applicant.
In the examples of the publication No. 1, the application to a mechanical pencil is described. FIG. 3 shows a vertical sectional view of this mechanical pencil. In this mechanical pencil, a pedestal 2 is arranged in the outer cylinder 1 so as not to rotate relative to the outer cylinder 1 and movable in the axial direction, and the core of the lead-out mechanism 3 is provided in the front part of the pedestal 2. The rear end of the tank 3a is inserted, and the front end of the guide cylinder 14 of the rod-shaped object feeding container 10 is connected to the rear part of the pedestal 2 so as not to be rotatable relative to the pedestal 2 and detachably in the axial direction. . The stick-shaped object feeding container 10 has a spiral groove 12a on its inner surface.
A tubular body 12 provided with a guide tube 14, a guide tube 14 provided with axially immovable guide holes 14a, 14a that are fitted in the tubular body 12 so as to be relatively rotatable, and the guide hole 14;
Protrusion 1 that fits into the spiral groove 12a through a and 14a
A holder 16 having a rod-shaped object 30 having side surfaces 6a and 16a is provided.

Reference numeral 6 is a clip fixed to the outer peripheral surface of the rear end portion of the outer cylinder 1.

In the mechanical pencil constructed as described above, when the outer cylinder 1 is rotated with respect to the cylindrical body 12 when the rod-shaped object 30 is paid out, the outer cylinder 1 rotates with the guide cylinder 14 via the pedestal 2. Since it is stopped, the guide cylinder 14 rotates with respect to the cylindrical body 12, the holder 16 moves along the spiral groove 12a in the axial direction while being guided by the guide hole 14a, and the rod-shaped object 30 moves depending on the rotation direction. The stick-shaped material feeding container 10 is projected and retracted from the tip of the head.

When the lead of the mechanical pencil is moved forward during writing, the rod-shaped object feeding container 10 is knocked from the rear end thereof, so that the lead tank 3a is inserted through the pedestal 2 connected to the guide tube 14. The core can be pushed forward and fed out by a predetermined length.

[0006]

However, in the above-mentioned conventional writing instrument, since the parts of the clip 6 and the pedestal 2 are separately required, there is a problem that the number of parts is large and the manufacturing cost is high.

The present invention has been made in view of the above problems, and the inventions according to claims 1 to 5 provide a writing instrument with a stick-shaped object feeding container, which can reduce the number of parts and the manufacturing cost. The purpose is to do.

[0008]

In order to achieve the above object, the invention according to claim 1 of the present invention is an rod-shaped object feeding container comprising an outer cylinder containing a writing medium and a rod-shaped object feeding container. In the writing instrument with a clip, a clip member is attached to a rear end portion of the outer cylinder, and the clip member includes a clip portion extending along the outer cylinder outside the outer cylinder, and an inner cylinder portion disposed inside the outer cylinder. The rod-shaped article feeding container has a tubular body having a spiral groove on its inner surface, and a guide that is axially immovably fitted to the tubular body and is rotatable relative to the tubular body and extends in the axial direction. A guide cylinder provided with a hole; and a holder for holding a rod-shaped object having a projection on its side surface that fits into the spiral groove through the guide hole, and the tip of the guide cylinder has an inner cylinder part of the clip member. Is connected to the
It is characterized by the following.

The present invention can be applied to mechanical pencils, ballpoint pens, felt-tip pens, marker pens, felt pens, etc. as writing instruments, and as writing media,
It can be applied to a core, a refill containing ink, a felt into which ink is immersed, a resin, or the like. Furthermore, any of a writing instrument of a type in which a writing medium can be freely retracted from the tip of a writing instrument and has a feeding mechanism, or a writing instrument of a type in which the writing medium does not have such a feeding mechanism and always projects from the tip of the writing instrument The invention can be applied.

The present invention also provides, as a rod-shaped material, an eraser,
It can be applied to correction sticks, writing cores, fluorescent cores, eyebrow cores, stick-shaped glue, and the like. The invention described in claim 2 is claim 1
In the described one, the writing instrument is a mechanical pencil, and is attached to an opening formed in a front side surface of the outer cylinder by being inserted into the outer cylinder and biased rearward, and the core feeding An operating member capable of driving the mechanism is further provided.

According to a third aspect of the present invention, in the second aspect, the leading end of the guide cylinder is detachably connected to the inner cylinder portion of the clip member in the axial direction, and the lead-out mechanism is in the axial direction. And a large diameter portion having an outer diameter substantially equal to the inner diameter of the outer cylinder at the rear portion of the core passage portion. The invention according to claim 4 is characterized in that, in the invention according to claim 3, the large-diameter portion has guide means for receiving the core and guiding it to the core passage portion.

According to a fifth aspect of the present invention, in the fourth aspect, the guide means has a tapered portion formed on the inner surface of the large diameter portion.
The invention according to claim 6 is characterized in that, in any one of claims 3 to 5, the core passage portion also functions as a core storage tank. Further, the invention according to claim 7 is the invention according to any one of claims 2 to 6, wherein the lead-out mechanism further has a driven portion driven by the actuating member. And

According to the invention of claim 8, the writing instrument is a ball-point pen, which is housed in the front part of the outer cylinder and comprises a refill feed-out mechanism including a cam body, a cam bar, and a rotary cam meshing with the cam bar, and a rear portion. A refill that is biased toward the rotary cam and the cam bar, and an actuating member that is attached to an opening formed in the front side surface of the outer cylinder and is capable of driving the refill feeding mechanism. And

Since the clip member doubles as a clip of a conventional writing instrument and as a cradle for receiving the stick-shaped object feeding container, the clip member is provided so that the number of parts is small and the assembly is easy. Can be done.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a vertical cross-sectional view showing an embodiment in the case of being applied to a mechanical pencil as a writing instrument with a stick-shaped object feeding container of the present invention. In the figure, reference numeral 1 denotes an outer cylinder, and the outer cylinder 1 is composed of an outer cylinder body 1a and a tip tool 1b screwed to the tip of the outer cylinder body 1a. Tip 1b
A tip slider 8 and a core pipe 9 connected to the tip slider 8 are provided therein.

A core feeding mechanism 13 is inserted in the outer cylinder 1. The core feeding mechanism 13 extends in the axial direction of the core passage portion 13a whose center hole serves as a core passage, a chuck 13b fixed to the front portion of the core passage portion 13a, and is fitted on the outside of the chuck 13b. Chuck ring 13c, a chuck ring receiving sleeve 13d that abuts the rear end of the chuck ring 13c, a chuck spring 13e interposed between the chuck ring receiving sleeve 13d and the core passage portion 13a, and a chuck ring receiving member. Sleeve 1
3d and a cushion spring 13f inserted between the stepped portion inside the outer cylinder 1, and the lead-out mechanism 13 is biased rearward by a chuck spring 13e. A driven portion 13g having an increased outer diameter is provided at the center of the core passage portion 13a. A large diameter portion 13i having an increased outer diameter is also provided at the rear end portion of the core passage portion 13a, and the outer diameter of the large diameter portion 13i is substantially equal to the inner diameter of the outer cylinder 1. There is almost no radial gap between the large-diameter portion 13i and the outer cylinder 1, and even if there is any gap, it is set to be smaller than the core diameter of the core. Also, the large diameter portion 1
The inner surface of 3i is a tapered portion 13h (guide means) whose inner diameter increases toward the rear, and the core passage portion 1
A core storage tank for storing spare cores is provided both inside 3a and inside the outer cylinder 1 behind the core passage portion 13a.
Since the radial gap between the large-diameter portion 13i and the outer cylinder 1 is set to be smaller than the core diameter, the core inserted from the rear of the outer cylinder 1 and the core delivery mechanism 13 is It is possible to prevent the core from being inserted into the radial gap between them, and further, the tapered portion 13h allows the core inserted from the rear to be smoothly guided into the core passage portion 13a.

An opening 1c is formed on the front side surface of the outer cylinder 1, and an operating member 4 is swingably attached to the rear end of the opening 1c. The operating member 4 includes the core passage portion 13
The cross section is provided with a U-shaped or arcuate portion 4a so as to be able to straddle a, and the operating member 4 interferes with the driven portion 13g of the lead-out mechanism 13 when entering the inside of the outer cylinder 1. Then, the driven portion 13g is moved forward. Therefore, the lead-out mechanism 13 is driven forward as the actuating member 4 enters.

A clip member 20 is attached to the rear end of the outer cylinder 1. The clip member 20 is arranged inside the outer cylinder 1, and a clip portion 20a extending along the outer cylinder outside the outer cylinder 1, an outer cylinder portion 20b arranged around the outer peripheral surface of the rear end of the outer cylinder 1, and the outer cylinder 1. The clip member 20 is an integrally molded product including the inner cylinder portion 20c, and the protrusion 20d on the inner circumference of the outer cylinder portion 20b is press-fitted into the groove 1d formed on the outer peripheral surface of the rear end of the outer cylinder 1 to form the clip member 20. It is integrally connected to the outer cylinder 1. A plurality of key grooves 20e are formed on the inner peripheral surface of the front portion of the inner cylindrical portion 20c, and small projections 20f protruding inward are formed. Further, the inner peripheral surface of the front end portion of the inner cylindrical portion is a tapered portion 20g which is widened forward, that is, the inner diameter is increased toward the front.
Therefore, the lead can be smoothly guided forward.

Further, the rod-shaped object feeding container 11 is removably inserted into the clip member 20. The rod-shaped material feeding container 11 includes a tubular body 12 having a spiral groove 12a on its inner surface,
A guide tube 14 provided with guide holes 14a, 14a that are axially immovable and relatively rotatably fitted in the tubular body 12 and extend in the axial direction, and are fitted in the spiral groove 12a through the guide holes 14a, 14a. The holder 16 is provided with the protrusions 16a, 16a to be fitted on the side surface and holds the rod-shaped object 30.

A plurality of keys 14b and small protrusions 14c are formed on the outer peripheral surface of the front end of the guide cylinder 14, and the keys 14b are fitted in the key grooves 20e of the inner cylinder portion 20c described above. The small protrusion 14c rides over the small protrusion 20f of the inner cylindrical portion 20c and is lightly locked. Thus,
The guide cylinder 14 is connected to the clip member 20 so as not to be rotatable relative to the clip member 20 and detachably in the axial direction.

When assembling the mechanical pencil described above, first, the lead-out mechanism 13 is fed into the outer cylinder body 1a from the front.
After inserting, the tip 1b is screwed to the outer cylinder body 1a. After that, the operating member 4 is attached to the outer cylinder 1, and the clip member 2 is attached.
0 is attached to the rear end of the outer cylinder body 1a. Then, the stick-shaped object feeding container 11 is inserted into the clip member 20 to complete the process.

When the mechanical pencil assembled as described above is used, when the user holds the outer cylinder 1 and pushes the operating member 4 with his / her finger to swing it, the operating member 4
Advances the driven portion 13g. Then, the chuck 13
b moves forward against the chuck spring 13e to open the chuck 13b, and similarly to the known lead feeding mechanism, the lead can be fed from the chuck 13b by a predetermined length to feed the lead from the tip slider 8 at the tip of the tip 1b. .

When the rod-shaped object 30 of the rod-shaped object feeding container 11 is fed, the outer cylinder 1 or the clip member 20 is rotated with respect to the cylindrical body 12. Outer cylinder 1 and clip member 20
Is prevented from rotating with the guide cylinder 14, so that the cylindrical body 12
The guide tube 14 is rotated with respect to the holder 16 and the holder 16 is rotated in the spiral groove 12.
The rod-shaped object 30 (for example, eraser) held in the holder 16 and moved in the axial direction while being guided by the guide hole 14a along a, emerges from the tip of the head of the rod-shaped object feeding container 11 according to the rotation direction. It will be.

When replenishing the core, when the rod-shaped object feeding container 11 is pulled out from the clip member 20, the small protrusions 14c and 20f are lightly locked, so that these locks come off. The delivery container 11 can be easily pulled out. Therefore, after that, the core can be inserted into the inner cylindrical portion 20c of the clip member 20.
The inserted core is received by the large diameter portion 13i of the core passage portion 13a and is smoothly guided into the core passage of the core passage portion 13a by the tapered portion 13h.

As described above, according to the present invention, since the clip member 20 integrally formed is provided, the clip member 20 serves both as the conventional clip and the receiving member of the rod-shaped object feeding container 11. The number of parts is small, and the assembly is easy.
As the actuating member 4, in addition to the one that swings as in this example, a type that moves the lead-out mechanism 13 forward by sliding along the outer cylinder 1 can be applied.

Next, FIG. 2 shows a vertical sectional view of an embodiment in which the present invention is applied to a ball-point pen as a writing instrument with a stick-shaped article feeding container of the present invention. In the figure, 31 is an outer cylinder, and the outer cylinder 31 is composed of an outer cylinder body 31a and a tip 31b screwed to the tip of the outer cylinder body 31a. Outer cylinder 31
A refill feed-out mechanism 33 is housed in the front portion. The refill feed-out mechanism 33 is a known rotary cam mechanism, and includes a cam body 34, a cam bar 35, and a rotary cam 36 that meshes with the cam bar 35. .

The front outer flange 34a of the cam body 34 is
An inner rear end flange 34b of the cam body 34, which is fixed to the tip of the outer cylinder body 31a, prevents the cam bar 35 from being pulled out rearward. The refill 38 containing the ink therein has a rotary cam 36 and a through hole 36 of the cam bar 35.
a, 35a, and is urged rearward by a spring 39 inserted between the tip 31b and the receiving portion 38a of the refill 38.

An opening 31c is formed on the front side surface of the outer cylinder 31, and an operating member 40 is slidably attached to the opening 31c. The actuating member 40 includes a ring portion 40a locked to the outer peripheral surface of the cam bar 35, and when the actuating member 40 is advanced along the opening 31c, the cam bar 35 is driven forward together.

The same clip member 20 as that of the first embodiment is attached to the rear end portion of the outer cylinder 31, and the outer cylinder portion 20b thereof is mounted.
The clip member 20 is integrally coupled to the outer cylinder 31 by press-fitting the convex portion 20d on the inner periphery of the outer cylinder 31 into the groove 31d formed on the outer peripheral surface of the rear end of the outer cylinder 31. Further, similarly to the first embodiment, the rod-shaped object feeding container 11 is removably inserted in the clip member 20, and the rod-shaped object feeding container 11 is inserted into the key groove 20e of the inner tubular portion 20c of the clip member 20.
Key 14b is inserted, and the small protrusion 1 of the guide tube 14
4c rides over the small protrusion 20f of the inner cylindrical portion 20c and is lightly locked. In this way, the guide tube 14 is attached to the clip member 20.
Is relatively non-rotatable and is detachably connected in the axial direction. However, in the case of the present embodiment, since it is not necessary to refill the core from the rear as in the first embodiment, the rod-shaped object feeding container 11 does not necessarily have to be removable, and the guide tube 14 May be completely fixed to the clip member 20 by press fitting or adhesion.

Further, the tapered portion 20g of the inner cylindrical portion 20c of the clip member 20 is not necessary, but the mechanical pencil of the first embodiment and the ballpoint pen of the second embodiment are
When the clip member 20 and the rod-shaped object feeding container 11 are used in common and it is desired to make these parts compatible,
It is desirable to use the same parts in these embodiments.

When assembling the above ballpoint pen, the cam body 34 is first fitted and inserted into the front portion of the outer cylinder body 31a, and then the ring portion 40a of the actuating member 40 is opened with the ring portion 40a parallel to the axial direction of the outer cylinder 31. After inserting from the portion 31c, the ring portion 40a is rotated 90 degrees so that the ring portion 40a is orthogonal to the axial direction in the outer cylinder 31. Thereafter, the cam bar 35 and the rotary cam 36 are inserted from the front, the rear portion of the cam bar 35 is inserted into the ring portion 40a, and then the refill 38 is attached.
And the through-holes 36a, 35a of the cam bar 35, the spring 39 is inserted from the tip of the refill 38, and the tip 31b is inserted.
Is screwed onto the outer cylinder body 31a. Further, the clip member 2
0 is attached to the rear end of the outer cylinder body 31a, and the rod-shaped object feeding container 11 is inserted into the clip member 20 to complete the process.

When the ballpoint pen assembled as described above is used, when the user holds the outer cylinder 31 and pushes the operating member 40 with his / her finger to slide it forward, the ring portion 40a causes the spring 39 to move. By pushing the cam bar 35 against the force, the rotary cam 36 meshed with the cam bar 35 rotates a required angle and engages with the cam body 34, and the tip of the refill 38 is maintained to project from the tip 31b. , You can write down.

When the operating member 40 is slid forward again,
Again, the cam bar 35 is pushed forward via the ring portion 40a, whereby the rotation cam 36 and the cam body 34 are disengaged, and the rotation cam 36, the cam bar 35, and the refill 38 are moved backward by the spring force of the spring 39. Move and tip 31
The tip of the refill 38 is retracted from b. In addition, the delivery of the rod-shaped material 30 of the rod-shaped material delivery container 11 is the same as that in the first embodiment, and thus the description thereof is omitted.

When the refill 38 is replaced, the tip 31b is removed from the outer cylinder body 31a, the used refill 38 is taken out together with the spring 39, and a new refill 38 is inserted into the rotary cam 36 and the through hole 36 of the cam bar 35.
The replacement work is completed by inserting the springs 39 into the a and 35a, inserting the spring 39 from the tip of the refill 38, and screwing the tip 31b into the outer cylinder body 31a. In order to prevent the rotary cam 36 from falling off the cam bar 35 during this replacement work, a limiting member for restricting the forward displacement of the rotary cam 36 with respect to the cam bar 35 by a predetermined amount or more is provided in the cam bar 35 and / or the rotary cam 3.
It is desirable to provide it in No. 6.

In the above embodiment, the core or the refill as the writing medium has been described so that it can be retracted from the tip of the writing instrument by the core delivery mechanism or the refill delivery mechanism, but the invention is not limited to this. Instead, the same can be applied to a writing instrument in which the tip of the writing medium always projects from the tip of the writing instrument.

[0036]

As described above, according to the invention described in claim 1, by providing the clip member, the clip member serves as a cradle for receiving the clip of the conventional writing instrument and the stick-shaped object feeding container. Therefore, the number of parts is small, and the assembly can be easily performed.

According to the second aspect of the present invention, the rod-shaped object is extended to the mechanical pencil capable of advancing the lead by operating the actuating member attached to the opening formed on the side surface of the outer cylinder. A container can be provided. According to the third aspect of the invention, since the tip of the guide cylinder is detachably connected in the inner cylinder of the clip member in the axial direction, the rod-shaped object feeding container can be removed from the clip member. Then, the core can be replenished from the rear of the clip member. At this time, since the large diameter portion having an outer diameter substantially equal to the inner diameter of the outer cylinder is provided at the rear portion of the core passage portion of the lead-out mechanism, the lead replenished from the rear side is not connected to the lead-out mechanism and the outside. It can be prevented from being caught between the cylinder and being damaged.

According to the invention of claim 4, since the guide means is provided, the lead is smoothly guided to the lead passage portion. Further, according to the invention of claim 5, since the guide means is the tapered portion, the lead is smoothly guided to the lead passage portion. According to the invention of claim 6, the wick passage portion can also serve as the wick storage tank.

According to the seventh aspect of the invention, since the lead-out mechanism has the driven portion driven by the operating member, when the operating member is operated, the driven portion is passed through. The core feeding mechanism is driven reliably. According to the invention of claim 8, a ball-point pen capable of retracting and retracting a refill by operating an operating member attached to an opening formed on a side surface of an outer cylinder is provided with a stick-shaped object feeding container. You can

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a mechanical pencil with a stick-shaped object feeding container according to the present invention.

FIG. 2 is a longitudinal sectional view of a ball-point pen with a stick-shaped object feeding container according to the present invention.

FIG. 3 is a vertical cross-sectional view of a conventional mechanical pencil with a container for delivering a rod-shaped material.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Outer cylinder 1c Opening 13 Core delivery mechanism 13a Core passage 13g Driven part 13h Tapered part (guide means) 13i Large diameter part 4 Actuating member 11 Rod-shaped object feeding container 12 Cylindrical body 12a Spiral groove 14 Guide tube 14a Guide hole 16 Holder 16a Protrusion 20 Clip Member 20a Clip Part 20c Inner Cylinder Part 30 Rod-like Object 31 Outer Cylinder 31c Opening Part 33 Refill Sending Mechanism 34 Cam Body 35 Cam Bar 36 Rotating Cam 40 Actuating Member

Claims (8)

[Claims] 1. A writing instrument with a stick-shaped object feeding container comprising an outer cylinder accommodating a writing medium and a stick-shaped object feeding container, wherein a clip member is attached to a rear end portion of the outer cylinder, and the clip member is , Integrally having a clip part extending along the outer cylinder outside the outer cylinder and an inner cylinder part arranged inside the outer cylinder, wherein the rod-shaped object feeding container has a spiral groove on the inner surface. A tubular body, a guide tube that is inserted into the tubular body so as not to move in the axial direction so as to be relatively rotatable, and has a guide hole that extends in the axial direction, and a projection that fits into the spiral groove through the guide hole on the side surface. And a holder for holding a rod-shaped object, wherein the tip of the guide tube is connected to the inner tube portion of the clip member such that the tip cannot be relatively rotated. 2. The writing instrument is a mechanical pencil,
A lead-out mechanism inserted into the outer cylinder and biased rearward,
The writing instrument with a stick-shaped article feeding container according to claim 1, further comprising: an actuating member that is attached to an opening formed on a front side surface of the outer cylinder and is capable of driving the core feeding mechanism. 3. The tip of the guide cylinder is detachably connected to the inner cylinder of the clip member in the axial direction, and the core feeding mechanism has a core passage extending in the axial direction, and a rear portion of the core passage. 3. The writing instrument with a stick-shaped article feeding container according to claim 2, further comprising a large-diameter portion having an outer diameter substantially equal to the inner diameter of the outer cylinder. 4. The writing instrument with a stick-shaped article feeding container according to claim 3, wherein the large-diameter portion has guide means for receiving a lead and guiding it to the lead passage portion. 5. The writing instrument with a stick-shaped article feeding container according to claim 4, wherein the guide means has a tapered portion formed on the inner surface of the large diameter portion. 6. The writing instrument with a stick-shaped object feeding container according to claim 3, wherein the lead passage portion also serves as a lead storage tank. 7. The writing instrument with a stick-shaped article feeding container according to claim 2, wherein the lead feeding mechanism further has a driven portion driven by the actuating member. . 8. The writing instrument is a ball-point pen, is housed in the front part of the outer cylinder, and has a refill feed-out mechanism including a cam body, a cam bar, and a rotary cam that meshes with the cam bar, and the rotary cam that is biased rearward. 2. The rod shape according to claim 1, further comprising: a refill through which the cam bar is inserted, and an actuating member which is attached to an opening formed in a front side surface of the outer cylinder and is capable of driving the refill delivery mechanism. A writing instrument with a container for feeding.