JP2537265Y2 - Knock type writing instrument - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a writing instrument such as a ball-point pen, a felt-tip pen, a marker pen, and the like. It relates to a knock type writing instrument.

[0002]

2. Description of the Related Art Conventional knock-type writing instruments of this kind are disclosed in Japanese Utility Model Laid-Open No. 61-107590 and Japanese Utility Model Laid-Open No. 1-16.
No. 6,577, and the like.

[0003]

[0007] Since these conventional knock-type writing instruments use only the elasticity of the knocking portion and the clip portion, they cannot be restored due to fatigue due to long-term use, and the life is shortened. There was a problem that it was relatively short.

[0004]

In order to solve the above-mentioned problems, a knock-type writing instrument according to the present invention comprises a refill 2 slidably disposed in an outer cylinder 1 as shown in FIGS. An elastic body 3 for urging the outer cylinder 2 rearward and the outer cylinder 1
A knock portion 5 and a clip portion 4 are provided inside and outside, respectively. The clip portion 4 and the knock portion 5 are connected to each other via a clip base 6 passing through a hole 7 provided in the outer cylinder 1.
1 and the extension portion 1 extending rearward
1A, a projection 9 engaging with and disengaging from the hole 7 is provided on the extension portion 11A, and a portion of the interlocking portion 11 abutting on the lower rear portion of the refill 2 is set as a fulcrum 10;
And the knock portion 5 is provided with a flexible portion 12.

[0005]

In the above construction, when the knocking portion 5 is knocked, the projection 9 locked in the storage hole 8 of the outer cylinder 1 is changed to the clip portion 4, the interlocking portion 11, the flexible portion 12, and the knocking portion 5. The projection 9 is disengaged from the storage hole 8 by pivoting about the fulcrum 10 together with the flexible portion 12 and slightly bending the flexible portion 12. Therefore, the refill 2 has the knock portion 5 and the flexible portion 1
2, together with the interlocking part 11 and the clip part 4, move forward against the elastic force of the elastic body 3, and the projection 9
The pen tip 2A is maintained in a state in which the pen tip 2A protrudes from the tip of the outer cylinder 1 by rotating in the opposite direction to the above with respect to 0 and being locked by restoring the flexible portion 12. It will be available for writing.

In order to store the pen tip 2A from this protruding state, the rear part 4B of the clip part 4 is pushed down or the tip part 4A is stored.
Is raised, the protrusion 9 locked in the projecting hole 7 rotates about the fulcrum 10 together with the clip portion 4, the interlocking portion 11, the flexible portion 12, and the knock portion 5 and the flexible portion. The projection 9 is disengaged from the projecting hole 7 by slightly bending the protrusion 12, and the refill 2 moves rearward together with the clip portion 4, the interlocking portion 11, the flexible portion 12 and the knock portion 5 by the elastic force of the elastic body 3. Then, the pen tip 2A is housed from the tip of the outer cylinder 1 and the projection 9 is together with the clip portion 4, the interlocking portion 11, the flexible portion 12, and the knock portion 5 around the fulcrum 10 in a direction opposite to the above. Then, the flexible portion 12 is restored and the flexible portion 12 is restored, so that the pen tip 2A is stored in the state of being stored from the tip of the outer cylinder 1.

[0007]

FIG. 1 is a longitudinal sectional view showing a configuration of a first embodiment of a knock type writing instrument according to the present invention in a protruding state. In the first embodiment, a felt-tip pen refill 2 slidably disposed in an outer cylinder 1 and a spring 3 for urging the refill 2 backward.
And a clip portion 4 and a tubular knock portion 5. The clip portion 4 and the tubular knock portion 5 are linked to each other via a clip base 6 passing through a projecting hole 7 provided in the outer cylinder 1. They are connected by a part 11.

The interlocking section 11 has an extension 11 extending rearward.
A is provided on the extension portion 11A. A projection 9 is provided on the extension portion 11A so as to be engaged with one of the projecting hole 7 provided in the outer cylinder 1 and the storage hole 8 provided behind the projecting hole 7. The protrusion 9 is provided between the front part 4A and the rear part 4B of the clip part 4 and the interlocking part 1
1 is configured to engage or disengage with one of the projecting hole 7 and the housing hole 8 by leverage movement of a fulcrum 10 provided at a lower front part of the device 1. Further, a portion of the fulcrum 10 in contact with the refill 2 is a curved surface 17.

A portion of the interlocking portion 11 which abuts on the lower rear portion of the refill 2 is a fulcrum 10, and the space between the interlocking portion 11 and the knocking portion 5 is formed by two flexible side rods 12 opposed to each other at a position below the center line. Are linked. The flexible side rod 12 may be provided integrally with the interlocking part 11 and the knock part 5, or may be provided separately.

In the first embodiment, the knock portion 5 is loosely inserted into the outer cylinder 1, and the rear end of the outer cylinder 1 at the fulcrum 10 side is shorter than the rear end of the outer cylinder 1 at the clip portion 4. This is to ensure that the projection 9 is easily and disengaged from the projection hole 7 or the storage hole 8 by the lever movement by the fulcrum 10 and the elasticity by the flexible portion 12. FIG. 3 is an explanatory plan view of the rear portion of the outer cylinder in the present invention, 14 is a constricted portion provided between the projecting hole 7 and the storing hole 8, 16 is a counterbore reaching the storing hole 8,
15 Batch provided between the counterbore 16 and the receiving hole 8
Which is a part.

In the first embodiment, when the knocking portion 5 is knocked, the protrusions 9 locked in the storage holes 8 of the outer cylinder 1 are formed.
However, the projection 9 is rotated in a clockwise direction around the fulcrum 10 together with the clip portion 4, the interlocking portion 11, the flexible side rod 12, and the knock portion 5, and the flexible side rod 12 is slightly bent. It comes off from the storage hole 8. Therefore, the refill 2 moves forward against the spring force of the spring 3 together with the knock portion 5, the flexible side rod 12, the interlocking portion 11, and the clip portion 4, and the projection 9 is formed around the fulcrum 10 in the projection hole 7. By rotating counterclockwise in the opposite direction to the above and locking the flexible side rod 12 by restoring, the pen tip 2A is maintained in a state of protruding from the tip of the outer cylinder 1 and writing. It can be offered to.

In order to store the pen tip 2A from this protruding state, the rear part 4B of the clip part 4 is pushed down or the tip part 4A is stored.
Is raised, the projection 9 locked in the projection hole 7 rotates clockwise about the fulcrum 10 together with the clip portion 4, the interlocking portion 11, the flexible side rod 12, and the knock portion 5, and When the flexible side rod 12 bends slightly, the protrusion 9 comes out of the projecting hole 7, and the refill 2 is moved by the spring force of the spring 3 into the clip portion 4, the interlocking portion 11, the flexible side rod 12 and the knock portion 5. The pen tip 2A retracts from the tip of the outer cylinder 1 and the projection 9 is
1, together with the flexible side rod 12 and the knocking portion 5, it is rotated counterclockwise around the fulcrum 10 in the opposite direction, and is locked in the storage hole 8 by the restoration of the flexible side rod 12. Will be
The pen tip 2A is maintained in a state of being stored from the tip of the outer cylinder 1.

FIG. 2 is a longitudinal sectional view showing the configuration of the second embodiment in a protruding state. In the second embodiment, a flexible portion 12 between an interlocking portion 11 and a knock portion 5 is provided by a cut 13. The configuration is the same as that of the first embodiment except that the fulcrum 10 is provided.

In the second embodiment, when the knocking portion 5 is knocked, the projections 9 locked in the storage holes 8 of the outer cylinder 1 are moved.
Is rotated clockwise about the fulcrum 10 together with the clip portion 4, the interlocking portion 11, the flexible fulcrum portion 12, and the knock portion 5, and the flexible fulcrum portion 12 is slightly bent, so that the protrusion 9 is formed.
From the storage hole 8. Therefore, the refill 2 moves forward together with the knock portion 5, the flexible fulcrum portion 12, the interlocking portion 11, and the clip portion 4 against the spring force of the spring 3, and the protrusion 9
Is pivoted counterclockwise in the projecting hole 7 around the fulcrum 10 in the opposite direction, and is locked by the restoration of the flexible fulcrum portion 12, so that the pen tip 2A projects from the tip of the outer cylinder 1. It will be maintained in a written state, and will be available for writing.

In order to store the pen tip 2A from this protruding state, the rear part 4B of the clip part 4 is pressed down or the tip part 4A is stored.
Is raised, the projection 9 locked in the projecting hole 7 rotates clockwise about the fulcrum 10 together with the clip portion 4, the interlocking portion 11, the flexible fulcrum portion 12, and the knock portion 5 and When the flexible fulcrum 12 is slightly bent, the projection 9 is disengaged from the projecting hole 7, and the refill 2 is connected to the clip 4, the interlocking part 11, the flexible fulcrum 12 and the knock 5 by the spring force of the spring 3. The pen tip 2A is retracted from the tip of the outer cylinder 1 and the projection 9 is moved together with the clip part 4, the interlocking part 11, the flexible fulcrum part 12 and the knock part 5 around the fulcrum 10. The pen tip 2A rotates counterclockwise in the opposite direction and is locked in the storage hole 8 by restoring the flexible fulcrum portion 12, so that the pen tip 2A is kept stored from the tip of the outer cylinder 1. Will be done.

In each of the first and second embodiments, the knock portion 5 is loosely inserted into the outer cylinder 1 and the rear end of the outer cylinder 1 closer to the fulcrum 10 than the rear end of the clip portion 4. And the interlocking portion 11 having the clip portion 4 and the protrusion 9,
By utilizing both the lever movement by the fulcrum 10 of the flexible part 12 and the knock part 5 and the elasticity by the flexible part 12, it can withstand a longer use than the conventional example using only elasticity. Not only can the life be extended,
The projection 9 can be more reliably and easily disengaged from the projection hole 7 or the storage hole 8.

Further, when the portable terminal is held while being held in a pocket or the like with the pen tip 2A protruding, the tip 4A of the clip portion 4 is pulled up, so that the pen tip 2A can be automatically stored, and the pocket etc. It does not contaminate clothing and the like. In the first and second embodiments, the case where the knock portion 5 and the interlocking portion 11 are cylindrical is shown, but it is needless to say that the knock portion 5 and the interlocking portion 11 may be column-shaped.

[0018]

As described above, according to the present invention, the refill 2 slidably disposed in the outer cylinder 1, the elastic body 3 for urging the refill 2 rearward, , A knock portion 5 and a clip portion 4 respectively provided outside,
The clip portion 4 and the knock portion 5 are connected by an interlocking portion 11 via a clip base 6 passing through a hole 7 provided in the outer cylinder 1, and the interlocking portion 11 is provided with an extension 11A extending rearward. The extension portion 11A has a projection 9
Is provided, and a portion of the interlocking portion 11 abutting on the lower rear portion of the refill 2 is defined as a fulcrum 10 and a flexible portion 12 is provided between the interlocking portion 11 and the knocking portion 5. Since both elasticity by the flexible portion 12 are used, fatigue caused by long-term use can be reduced and the service life can be prolonged as compared with the conventional example using only elasticity. In addition, the projection 9 can be easily and reliably engaged and disengaged from the projection hole 7 and the storage hole 8. In addition, when the pen tip 2A is in a protruding state and it is erroneously pinched in a pocket or the like and carried, a clip portion is provided. Since the tip portion 4A of the pen 4 is lifted, the pen tip 2A can be automatically stored, and there is an effect that there is no possibility of soiling clothes such as pockets.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a configuration of a first embodiment of a knock type writing instrument according to the present invention in a protruding state.

FIG. 2 is a longitudinal sectional view showing a configuration of a second embodiment in a protruding state.

FIG. 3 is an explanatory plan view of a rear portion of the outer cylinder in the present invention.

[Explanation of symbols]

 Reference Signs List 1 outer cylinder 2 (sign pen) refill 2A pen tip 3 elastic body 4 clip part 5 knock part 6 clip base 7 (projection) hole 8 storage hole 9 protrusion 10 fulcrum 11 interlocking part 11A extension 12 flexible part (side) 13) Notch

Claims (3)

(57) [Scope of request for utility model registration] 1. A refill (2) slidably disposed in an outer cylinder (1), an elastic body (3) for urging the refill (2) rearward, and an inner part of the outer cylinder (1). , A knock portion (5) and a clip portion (4) provided outside, respectively.
The clip portion (4) and the knock portion (5) are connected by an interlocking portion (11) via a clip base (6) passing through a hole (7) provided in the outer cylinder (1). (11)
An extension (11A) extending rearward is provided, and the extension (1A) is provided.
1A), a projection (9) engaging and disengaging from the hole (7) is provided, and a portion of an interlocking portion (11) abutting on a lower rear portion of the refill (2) is set as a fulcrum (10).
A knock-type writing instrument comprising a flexible portion (12) provided between 1) and a knock portion (5). 2. The knocking device according to claim 1, wherein the flexible portion between the interlocking portion and the knocking portion is a pair of side rods located below the center line. Writing instrument. 3. Knock according to claim 1 , characterized in that the flexible part (12) between the interlocking part (11) and the knock part (5) is a fulcrum (10) provided by a cut (13). Writing instrument.