JP2989920B2 - Rod-shaped feeding container and writing implement - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rod-shaped material dispensing container and a rod-shaped material dispensing container, wherein a rod-shaped material such as a rod-shaped eraser, a lipstick, a correction rod, a writing core, a path, etc., comes into and out of the end of a cylindrical body by a rotating operation. The present invention relates to a writing instrument provided with.

[0002]

2. Description of the Related Art In a conventional rod-shaped material feeding container, a spiral groove (female screw) is provided inside a cylindrical cap, a center shaft provided with a guide groove is inserted into the spiral groove, and a rod-shaped receiving stand is provided in the center shaft. The protrusion is engaged with the guide groove and the female screw, and by rotating the central shaft, the rod-shaped object can be protruded and retracted from the tip of the cylindrical cap.

[0003]

In the above conventional example, since a screw (female screw) is provided inside the cylindrical cap, screw processing is very difficult. For example, a female screw is formed by molding. In such a case, the core pin is pulled out while being rotated, so that the molding time is long, the mold is severely damaged, the durability is poor, the number of molding shots is reduced, and the cost increases.

[0004]

In order to solve the above-mentioned problems, the container according to the present invention is a rod-shaped object feeding container according to the present invention, in which a rotary screw shaft (2) is rotatable on a cylindrical body (1). And a guide groove (4) provided on the inner surface of the tubular body (1) by the rotation of the rotary screw shaft (2) engaged with the male screw portion (3) of the rotary screw shaft (2). A cylindrical rod support (5) moving along the shaft is inserted between the cylindrical body (1) and the male screw portion (3), and a coil spring (9) is attached to the cylindrical rod support (5). ), And the opposite end of the coil spring (9) is axially protruded from the distal end of the cylindrical rod support (5), so that the coil spring (9) is positioned on the inner surface of the distal end of the cylindrical body (1). A stopper portion (1) with which the opposite end of the coil spring (9) can abut.
0), the rod (7) is brought into contact with the tip of the cylindrical rod support (5), and the rod (7) is held inside the protruding portion of the coil spring (9). ) Can be protruded and retracted from the tip of the tubular body (1). According to the second aspect of the present invention, there is provided a rod-like material feeding container which rotatably supports a rotary screw shaft (2) on a cylindrical body (1), and a male screw portion (3) of the rotary screw shaft (2). And a cylindrical rod support (5) that moves along a guide groove (4) provided on the inner surface of the cylindrical body (1) by rotation of the rotary screw shaft (2).
Is inserted between the cylindrical body (1) and the male screw portion (3), and a holder (6) fitted into the guide groove (4) is inserted into the cylindrical rod support (5) in the axial direction. A guide groove (11) connected to the distal end side and communicating with the guide groove (4) on the inner surface of the leading tool (1A) provided at the leading end of the tubular body (1) and penetrating the leading tool (1A) in the axial direction. ), The rod (7) is held by the holder (6), and the holder (6) and the rod (7) can be protruded and retracted from the tip of the former (1A). In addition, the rod-shaped object feeding container according to the third aspect of the present invention is arranged such that the inner surface of the cylindrical body (1) according to the second aspect is provided with a guide groove (4) in the circumferential direction.
A guide groove (12) is provided at a position separated by a distance, and a guide projection (12A) which engages with the guide groove (12) and slidably contacts the rod (7) is provided on the inner surface of the former (1A). It becomes. Also, the rod-shaped object feeding container according to the invention of claim 4 forms a crack (14) at the rear end of the cylindrical body (1) according to any one of claims 1 to 3, thereby forming the cylindrical body ( 1) An annular engaging portion in which a portion of the rear end where the split (14) is not formed is a locking piece (15), and the locking piece (15) is provided on the outer periphery of the shaft of the rotary screw shaft (2). (13), and a crack (1) is formed at the rear end of the cylindrical rod support (5).
6), whereby the portion of the rear end of the cylindrical rod support (5) where the crack (16) is not formed is formed with the locking piece (1).
As 7), the locking piece (17) is engaged with the male screw portion (3) of the rotary screw shaft (2). According to a fifth aspect of the present invention, there is provided a writing instrument for rotating a rotary screw shaft (2) on a rear side of a cylindrical body (1) of a rod-like material feeding container according to any one of the first to fourth aspects. The shaft portion (2A) is non-rotatably and axially movably fitted into the inner cylinder (19), and the outer cylinder (20) is non-rotatably and axially movably fitted into the inner cylinder (19); Refill (2) is placed in the inner cylinder (19).
The rod-shaped object (1) is rotated by rotating the cylindrical body (1) with respect to the outer cylinder (20). It is possible to appear from the tip of 1). A writing instrument according to a sixth aspect of the present invention is the writing instrument according to the fifth aspect, wherein the rotary screw shaft (2) is provided.
The outer surface of the rotation shaft (2A) and the inner surface (1) of the inner cylinder (19)
9A) is a polygon that fits each other, and this inner cylinder (19)
Is characterized in that the outer surface (19B) and the inner surface (20A) of the outer cylinder (20) are polygons fitted to each other. The numbers in parentheses indicate the numbers shown in the drawings referred to in the embodiments described below.

[0005]

When the rotary screw shaft is rotated with respect to the cylindrical body, the cylindrical rod support engaged with the male screw portion of the rotary screw shaft is moved along the guide groove provided on the inner surface of the cylindrical body. The rod-shaped object, which is brought into contact with the cylindrical rod-shaped support by the movement thereof and held by a coil spring or a holder connected to the cylindrical rod-shaped support, protrudes and retracts from the tip of the cylindrical body in accordance with the rotation direction. become.

[0006]

FIG. 1 is a sectional view showing the structure of a container according to a first embodiment of the present invention. In the first embodiment, a shaft of a rotary screw shaft 2 is rotatably supported on a cylindrical body 1. A crack 14 is formed at the rear end of the tubular body 1, and a portion of the tubular body 1 where the crack 14 is not formed at the rear end serves as a locking piece 15. The rotary screw shaft 2 is engaged with an annular engaging portion 13 provided on the outer periphery of the shaft portion. A cylindrical rod support 5 is inserted between the cylindrical body 1 and the male screw portion 3 of the rotary screw shaft 2. At the rear end of the cylindrical rod support 5, there is a crack 1
6, a portion of the rear end of the cylindrical rod support 5 where the split 16 is not formed becomes a locking piece 17, and the locking piece 17 is a male screw portion of the rotary screw shaft 2. 3 is engaged. Since the cracks 14 and 16 are formed, the engagement between the annular engaging portion 13 and the locking piece 15 and the engagement between the male screw portion 3 and the locking piece 17 can be performed extremely easily.

A guide groove 4 is provided on the inner surface of the cylindrical body 1, and an elastic receiver 8 provided on a cylindrical rod support 5 is fitted into the guide groove 4, and the cylindrical rod support is provided. 5 can move along the guide groove 4.

[0008] One end of a coil spring 9 is locked to the elastic member receiver 8, and the opposite end of the coil spring 9 projects axially beyond the tip of the cylindrical bar support 5. Is a holder 6. The rod-shaped eraser 7 is in contact with the tip of the cylindrical rod-shaped support 5 and is held by the holder 6. A tip 1A is attached to the tip of the tubular body 1 by fitting, engaging, screwing, or the like. On the inner surface of the tip of the tip 1A, a non-locking side end of a coil spring 9 as a holder 6 is attached. Is provided with a stopper portion 10 which can be brought into contact therewith.

In the first embodiment having the above structure, the cylindrical body 1
When the rotation operation shaft portion 2A of the rotary screw shaft 2 is rotated,
The cylindrical rod support 5 in which the locking piece 17 is engaged with the male screw portion 3 of the rotary screw shaft 2 is moved along the guide groove 4 provided on the inner surface of the cylindrical body 1, and with this movement. The coil spring 9 locked by the elastic body receiver 8 and the rod-shaped eraser 7 held by the holder 6 of the coil spring 9 and abutting on the cylindrical rod support 5 correspond to the rotation direction from the leading tool 1A of the cylindrical body 1 according to the rotation direction. And appear. The rod-shaped eraser 7 protruding from the leading tool 1A of the tubular body 1 can be used for eraser or the like. .

The use of the rod-shaped eraser 7 reduces the holder 6 of the coil spring 9 against the stopper portion 10 of the leading tool 1A, further moves the cylindrical rod support 5 to move the coil spring 9 and the rod-shaped eraser 7, and stops the stopper. When the coil spring 9 is compressed between the portion 10 and the elastic member receiver 8 and reaches the most distal position, the remaining rod-shaped eraser 7 is automatically separated from the holder 6 of the coil spring 9 and pulled out.

FIG. 2 is a sectional view showing the structure of the second embodiment, and FIG. 3 is a sectional view taken along line AA of FIG. This second embodiment differs from the first embodiment shown in FIG.
Further, instead of using the end of the coil spring 9 as the holder 6, a holder 6 fitted in the guide groove 4 is continuously provided on the axially distal end side of the cylindrical rod support 5.

In the second embodiment having the above structure, the cylindrical body 1
On the other hand, when the rotary operation shaft portion 2A of the rotary screw shaft 2 is rotated, the cylindrical rod support 5 in which the locking piece 17 is engaged with the male screw portion 3 of the rotary screw shaft 2 The holder 6 is moved along the guide groove 4 provided on the inner surface.
The rod-shaped eraser 7 held at the end of the cylindrical body 1 protrudes and retracts from the leading tool 1A of the tubular body 1 according to the rotation direction. Tip 1 of tubular body 1
The rod-shaped eraser 7 protruding from A can be used for eraser or the like.

The rod-shaped eraser 7 is reduced by use and the holder 6
When the tip of the abutment comes into contact with the stopper portion 10 of the leading tool 1, the rod-shaped eraser 7 can no longer protrude, resulting in a remaining rod-shaped eraser. The remaining rod-shaped eraser 7 may be removed from the holder 6 using a tool such as a pin. However, the rod-shaped eraser 7 can be removed from the holder 6 by removing the leading tool 1A from the tubular body 1.

FIG. 4 is a sectional view showing the structure of a main part of the third embodiment, and FIG. 5 is a sectional view taken along line BB of FIG. In the third embodiment, a guide groove 11 communicating with the guide groove 4 is provided on the inner surface of the leading end 1A of the cylindrical body 1 in the second embodiment of FIG. The bar-shaped object guide groove 12 is also provided at a position separated by 90 degrees in the circumferential direction, and a guide projection 12A engaging with the bar-shaped object guide groove 12 is provided on the inner surface of the leading tool 1A. The guide groove 11 penetrates the leading tool 1A in the axial direction.

In the third embodiment having such a configuration, the rod-shaped eraser 7 is exactly the same as that of the second embodiment, and will not be described. The rod-shaped eraser is reduced by use and the leading tool 1A of the cylindrical body 1
When the holder 6 further projects through the guide groove 11 of the leading tool 1A, the remaining rod-shaped eraser 7 can be easily removed from the holder 6.

In this case, if the holder 6 is formed in advance so that the holder 6 is deformed outward, the remaining rod-shaped eraser can be automatically removed from the holder 6 by bending the holder 6, which is preferable.

Since the rod-shaped eraser 7 comes into and out of the tip of the tool 1A while being slid by the guide projection 12A of the tool 1A, the rod-shaped eraser 7 can be smoothly moved in and out without rattling. .

FIG. 6 is a sectional view of a main part showing a state in which the second embodiment of FIG. 2 is assembled to a writing instrument, and FIG. 7 is a sectional view taken along line CC of FIG. As a writing instrument, any of a mechanical pencil or a ballpoint pen may be used as long as it is a knock type.

An inner cylinder 19 having a refill contact portion 18 of a writing instrument is fitted behind the cylindrical body 1 so as to be non-rotatable and axially movable. In this example, the rotary operation shaft 2 of the rotary screw shaft 2
The outer surface of A and the inner surface 19A of the inner cylinder 19 have a polygonal shape that fits each other. The outer cylinder 20 of the writing instrument is attached to the inner cylinder 19.
Are fitted so that they cannot rotate and can move in the axial direction. In the present example, the outer surface 19B of the inner cylinder 19 and the inner surface 20A of the outer cylinder 20 are polygonal to be fitted to each other. In the case of a mechanical pencil, the refill 21 for a mechanical pencil is in contact with the refill contact portion 18, and in the case of a ballpoint pen, the refill for a ballpoint pen is in contact with a rotary cam mechanism (not shown).

When the cylindrical body 1 is rotated with respect to the outer cylinder 20, the cylindrical rod support 5 is rotated, and the rod-shaped eraser 7 protrudes and retracts from the leading end 1A of the cylindrical body 1 in the same manner as described above. become. When the leading tool 1A is knocked, the container of the present invention and the inner cylinder 19 move. In the case of a mechanical pencil, the refill 21 moves forward and backward as in the case of the conventional knock mechanical pencil, so that the center of the outer cylinder 20 is shifted from the tip. It will be paid out. When the lead is retracted, the lead can be retracted by pressing the lead in the knocked state.

In the case of a ballpoint pen, similarly to the conventional knock type ballpoint pen, the refill moves forward through a rotary cam mechanism, and the rotary cam rotates by a predetermined angle due to the movement of a cam bar constituting the rotary cam mechanism. The pen tip is locked to the cam of the cam main body fixed to 20, and the pen tip is maintained in a state of protruding from the tip of the outer cylinder 20.

When the pen tip is retracted, if the tip of the tip of the tubular body 1 is knocked again, the rotating cam rotates by a predetermined angle due to the movement of the cam bar, disengaging from the cam of the cam body,
The refill 21 is moved rearward, and the pen tip retracts from the tip of the outer cylinder 20.

The combination of the container of the present invention and a writing instrument is not limited to the second embodiment shown in FIG.
Needless to say, the embodiments can be similarly combined.

In each of the first to third embodiments, since the rotary screw shaft 2, which is a male screw, is used, the screw processing is extremely easy, the molding time can be reduced, and the mold is hardly damaged.
It is excellent in durability, increases the number of molding shots, and can be implemented at low cost.

Further, the stick-shaped object feeding container of the present embodiment can be detachably connected to a writing instrument as a writing instrument cassette. Since the stick-shaped material feeding container can be replaced, simplicity can be improved.

[0026]

As described above, according to the present invention, since a male screw is used instead of a female screw, screw processing is extremely easy, molding time can be shortened, and the durability of the mold is improved. And not only can increase the number of molding shots, but also can be performed at low cost.

[Brief description of the drawings]

FIG. 1 is a sectional view showing the configuration of a first embodiment of the container of the present invention.

FIG. 2 is a sectional view showing a configuration of a second embodiment.

FIG. 3 is a sectional view taken along line AA of FIG.

FIG. 4 is a sectional view showing a configuration of a main part of a third embodiment.

FIG. 5 is a sectional view taken along line BB of FIG.

6 is a sectional view of a main part showing a state where the second embodiment of FIG. 2 is assembled to a writing instrument.

FIG. 7 is a sectional view taken along line CC of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cylindrical body 1A Tip 2 Rotating screw shaft 2A Rotating operation shaft part 3 Male screw part 4 Guide groove 5 Cylindrical rod support 6 Holder 7 Rod (rubber) 8 Elastic body receiver 9 Elastic body (coil spring) 10 Stopper part DESCRIPTION OF SYMBOLS 11 Guide groove 12 Rod guide groove 12A Guide projection 13 Annular engaging part 14 Split 15 Locking piece 16 Split 17 Locking piece 18 Refill contact part 19 Inner cylinder 19A Inner surface 19B Outer surface 20 Outer cylinder 20A Inner surface 21 Refill

──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-3-82600 (JP, A) JP-A-2-121292 (JP, U) JP-A-56-133497 (JP, U) JP-A-4- 104493 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) B43L 19/00 B43K 21/08 B43K 23/016 B43K 29/02

Claims (6)

(57) [Claims] A rotary screw shaft (2) is rotatably supported on a cylindrical body (1), and a male screw portion (3) of the rotary screw shaft (2) is provided.
And a cylindrical rod support (5) that moves along a guide groove (4) provided on the inner surface of the cylindrical body (1) by rotation of the rotary screw shaft (2). 1) and the male screw portion (3), one end of the coil spring (9) is locked to the cylindrical bar support (5), and the opposite end of the coil spring (9) is locked. The protrusion is made to protrude in the axial direction from the distal end of the cylindrical rod support (5), and the stopper () on which the non-locking end of the coil spring (9) can contact the inner surface of the distal end of the cylindrical body (1). 1
0), the rod (7) is brought into contact with the tip of the cylindrical rod support (5), and the rod (7) is held inside the protruding portion of the coil spring (9). ) Can be protruded and retracted from the tip of the cylindrical body (1). 2. A rotary screw shaft (2) is rotatably supported on a cylindrical body (1), and a male screw portion (3) of the rotary screw shaft (2) is provided.
And a cylindrical rod support (5) that moves along a guide groove (4) provided on the inner surface of the cylindrical body (1) by rotation of the rotary screw shaft (2). A holder (6) inserted between 1) and the male screw portion (3) and fitted into the guide groove (4) is provided on the cylindrical rod support (5) at the axial end side. A guide groove (11) communicating with the guide groove (4) and penetrating the tool (1A) in the axial direction is provided on the inner surface of the tool (1A) provided at the tip of the tubular body (1), and the holder ( 6) A rod feeding container which holds the rod (7) in (6) and allows the holder (6) and the rod (7) to protrude and retract from the tip of the former (1A). 3. A guide groove (4) is formed on the inner surface of the tubular body (1).
The rod-shaped object guide groove (1
2) is provided, and the guide protrusion (12A) which engages with the rod-shaped object guide groove (12) and slidably contacts the rod-shaped object (7) is attached to the tip (1).
3. The rod-shaped product feeding container according to claim 2, which is provided on the inner surface of A). 4. A crack (14) is formed at the rear end of the tubular body (1), whereby the crack (1) at the rear end of the tubular body (1) is formed.
The portion where 4) is not formed is used as a locking piece (15).
The locking piece (15) is engaged with an annular engaging portion (13) provided on the outer periphery of the shaft of the rotary screw shaft (2), and a split (16) is formed at the rear end of the cylindrical rod support (5). A portion of the cylindrical rod support (5) where the crack (16) at the rear end is not formed is defined as a locking piece (17), and the locking piece (1) is formed.
The rod-shaped material feeding container according to any one of claims 1 to 3, wherein 7) is engaged with a male screw portion (3) of a rotary screw shaft (2). 5. A rotary operation shaft (2A) of a rotary screw shaft (2) at a rear side of a cylindrical body (1) of the rod-shaped object feeding container according to any one of claims 1 to 4. Tube (19)
Into the inner cylinder (1) so as to be non-rotatable and axially movable.
9) The outer cylinder (20) is fitted so as to be non-rotatable and axially movable, and the inner cylinder (19) is provided with a refill contact portion (18) with which the end of the refill (21) contacts. A writing implement that enables the rod-shaped object (7) to protrude and retract from the tip of the cylindrical body (1) by rotating the cylindrical body (1) with respect to the outer cylinder (20). 6. A rotary operation shaft (2) of a rotary screw shaft (2).
A) The outer surface and the inner surface (19A) of the inner cylinder (19) are polygons that fit together, and the outer surface (19B) of the inner cylinder (19) and the inner surface (20A) of the outer cylinder (20) fit together. 6. The writing implement according to claim 5, wherein the writing implement is a polygon.