JP2502534Y2 - Writing implement with stick-out device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a writing instrument with a stick-shaped object feeding device capable of drawing and retracting a stick-shaped eraser, a crayon, a path or the like.

[Conventional technology and its problems]

Conventionally, many writing instruments have been proposed in which a writing refill is inserted in an outer cylinder and the writing core can be extended from the tip of the outer cylinder by a side knock operation or a side slide operation against the elastic body of the refill. However, in the rear part of the outer cylinder of this side-operated writing instrument, there is no writing instrument provided with a rod-shaped object feeding device, and even if only the rod-shaped article feeding device is provided, the total writing instrument length becomes long, and if the writing instrument total length is simply shortened. There is a problem that it is necessary to shorten the length of the writing core.

[Means for solving the problem]

In order to solve the above problems, the writing instrument of the present invention inserts a writing refill 2 in the outer cylinder 1 as shown in the first illustration, and operates the refill 2 against the elastic body 3 by the side operation to make the outer cylinder 1 A writing tool capable of feeding the writing core 4 from the tip of the guide groove 6 on the inner surface of the rear portion of the outer cylinder 1.
The guide groove 6 is fitted with the projection 9 of the inner cylinder 8 having the spiral groove 7 on the outer circumference, and the rear portion 15b of the writing refill 2 is extended and inserted into the inner cylinder 8. A rear cylinder 10 is rotatably attached to the rear portion of the outer cylinder 1 so as not to move in the axial direction, and a protrusion 11 provided on the inner surface of the rear cylinder 10 is provided with the spiral groove 7.
, And the rod-shaped object holder 12 is fixed to the inner cylinder 8,
The rod-shaped object holder 12 holds the rod-shaped object 5.

[Action]

When the rear cylinder 10 is rotated with respect to the outer cylinder 1, the protruding portion 11 of the rear cylinder 10
Is inserted into the spiral groove 7 of the inner cylinder 8 and the projection 9 of the inner cylinder 8 is fitted into the guide groove 6 of the outer cylinder 1. Therefore, the inner cylinder 8 and the rod-shaped object holder 12 are Since it moves rearward along the guide groove 6, the rod-shaped object 5 held by the rod-shaped object holder 12 is fed out from the rear end of the rear cylinder 10 and used.

Further, when the rear cylinder 10 is rotated with respect to the outer cylinder 1 in a direction opposite to the above-described rotation direction, the inner cylinder 8 and the rod-shaped object holder 12 move forward along the guide groove 6 of the outer cylinder 1 so as to be rod-shaped. The rod-shaped object 5 held by the object holder 12 is retracted from the rear end of the rear cylinder 10.

〔Example〕

 An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a sectional view showing the construction of one embodiment of the writing instrument of the present invention, FIG. 2 is a plan view of the end portion of the inner cylinder of the present invention, and FIG.
The drawing is a plan view of the operating lever portion in the present invention.

 First, the configuration of this embodiment will be described.

In FIG. 1, 1 is an outer tube, 1a is a tip tool screwed to the front part of the outer tube 1, 19 and 20 are a tip pipe and a core holding part respectively attached to the tip tool 1a, and 2 is an outer tube 1 It is a writing refill inserted in. The writing refill 2 is, for example, a chuck 16 fixed to the front portion of a lead tank 15, a chuck ring 17 fitted to the chuck 16, and a front tool that is abutted on the chuck ring 17 and is in front of the outer cylinder 1. It is composed of a junction 18 having a cushion portion 18a connected to 1a, and a spring 3 inserted between the front portion of the junction 18 and the lead tank 15.

The side knock operation mechanism 21 is, for example, a tank joint 22 that connects the front core tank portion 15a and the rear core tank portion 15b that form the core tank 15, and is pivotally supported by the outer cylinder 1 by a pivot shaft 23. Lever part 24a for pushing forward and outer cylinder 1
Lever portion 24b which is projected from the axial slit 25 and has a tip portion 24c integrated with the lever portion 24a locked in the slit 25.
And an operating lever 24. The lever portions 24a and 24b that constitute the operation lever 24 are the rear core tank portion 15b.
It has a bifurcated shape so as not to interfere with. Further, the pivot shaft 23 of the operation lever 24 is rotatably fitted in the fitting groove 29 provided in the width direction of the axial slit 25 of the outer cylinder 1 and does not come out.

An axial guide groove 6 is provided on the inner surface of the rear portion of the outer cylinder 1, and an inner cylinder 8 having a spiral groove 7 on the outer circumference is provided in the guide groove 6.
The projection 9 is fitted into the inner cylinder 8 and the rear core tank portion 15b of the writing refill 2 is extended into the inner cylinder 8. A rear cylinder 10 is rotatably attached to the rear portion of the outer cylinder 1 so as not to move in the axial direction, and a protruding portion 11 provided on the inner surface of the rear cylinder 10 is fitted into the spiral groove 7. The rear cylinder 10 is rotatably attached to the rear portion of the outer cylinder 1 by fitting the arc-shaped convex groove 27 provided on the rear portion of the outer cylinder 1 in an arc-shaped groove 26 provided on the rear cylinder 10 so as not to move in the axial direction. ..

A rod-shaped object holder 12 is fixed to the inner cylinder 8, and this holder 12
A rod-shaped eraser 5 is held in the. On the outer surface of the end of the inner cylinder 8, as shown in FIG. 2, an open groove 13 communicating with the spiral groove 7 or an open slit and an annular groove 14 slightly shallower than the spiral groove 7 are provided. When the protruding portion 11 of the rear cylinder 10 is inserted into, the protruding portion 11 can be fitted through the open groove 13 or the open slit. Reference numeral 28 is a head screw attached to the rear end of the rear cylinder 10 and serves to prevent the rod-shaped eraser 5 from wobbling.

 Next, the operation of the present embodiment having the above structure will be described.

When the lever portion 24b of the operation lever 24 is pushed in the direction of the arrow, the lever portions 24a, 24b rotate clockwise around the pivot shaft 23 against the spring force of the spring 3, and the tank joint 22, the front,
The rear core tank portions 15a, 15b and the chuck 16 are moved forward against the spring force of the spring 3 to open the chuck 16. Then, when the pushing operation of the operation lever 24 to the lever portion 24b is interrupted, the lever portions 24a and 24b are urged by the spring force of the spring 3 to rotate the pivot shaft 2
Rotate counterclockwise about 3 to reach tank joint 22, forward,
The rear core tank portions 15a, 15b and the chuck 16 are moved rearward by the spring force of the spring 3 to close the chuck 16, and by repeating this operation, the chuck 16 is opened and closed and the tip pipe of the tip 1a of the outer cylinder 1 is opened. Starting from 19, the writing core 4 is fed out, and writing is possible.

To retract the writing core 4, the lever part of the operating lever 24
The writing core 4 can be retracted from the tip pipe 19 by pushing the 24b to open the chuck 16 and pressing the tip while maintaining this state.

When the rear cylinder 10 is rotated with respect to the outer cylinder 1, the protruding portion 11 of the rear cylinder 10
Is inserted into the spiral groove 7 of the inner cylinder 8 and the projection 9 of the inner cylinder 8 is fitted into the guide groove 6 of the outer cylinder 1. Therefore, the inner cylinder 8 and the rod-shaped object holder 12 are Since it moves rearward along the guide groove 6, the stick-shaped eraser 5 held by the stick-shaped object holder 12 is fed out from the rear end of the rear cylinder 10 and used.

Further, when the rear cylinder 10 is rotated with respect to the outer cylinder 1 in a direction opposite to the above-described rotation direction, the inner cylinder 8 and the rod-shaped object holder 12 move forward along the guide groove 6 of the outer cylinder 1 so as to be rod-shaped. The rod-shaped eraser 5 held by the object holder 12 is retracted from the rear end of the rear cylinder 10.

Further, when the rear end spiral groove 7 portion of the rear portion of the inner cylinder 8 reaches the position of the protruding portion 11 of the rear cylinder 10, it cannot move any further, but if it is forcibly rotated, as shown in FIG. Since the protrusion 11 of the rear cylinder 10 is located in the annular groove 14 that is slightly shallower than the spiral groove 7 of the inner cylinder 8, the contact resistance between the annular groove 14 and the protrusion 11 rapidly increases. It is possible to let the user feel that it should not be done, and it is possible to prevent damage or failure due to unreasonable operation.

[Effect of device]

As described above, according to the present invention, the writing refill 2 is inserted into the outer cylinder 1, and the refill 2 is side-operated against the elastic body 3 to move the writing core 4 from the tip of the outer cylinder 1. In the writing instrument capable of feeding, the outer cylinder 1
A guide groove 6 is provided on the inner surface of the rear portion of the inner cylinder 8, and a protrusion 9 of an inner cylinder 8 having a spiral groove 7 on the outer periphery is fitted into the guide groove 6. The rear portion of the writing refill 2 is disposed in the inner cylinder 8. 15b is extended and the rear cylinder 10 is rotatably attached to the rear portion of the outer cylinder 1 so as not to move in the axial direction, and the protrusion 11 provided on the outer surface of the rear cylinder 10 is fitted into the spiral groove 7 and Since the rod-shaped object holder 12 is fixed to the inner cylinder 8 and the rod-shaped object 5 is held by the rod-shaped object holder 12, a writing instrument with a rod-shaped object feeding device can be provided and the rear portion 15b of the writing refill 2 can be provided in the inner cylinder. Since it is inserted in the writing tool 8, not only the total length of the writing instrument can be shortened, but also the writing core 4 need not be shortened.

[Brief description of drawings]

FIG. 1 is a sectional view showing the construction of one embodiment of the writing instrument of the present invention,
2 is a plan view of an end portion of the inner cylinder of the present invention, and FIG. 3 is a plan view of an operation lever portion of the present invention. 1 ... Outer cylinder, 1a ... Tip tool, 2 ... Writing refill, 3
...... Elastic body (spring), 4 ... Writing core, 5 ... Rod-shaped object (rod-shaped eraser), 6 ... Guide groove, 7 ... Spiral groove, 8 ... Inner cylinder, 9 ... Projection, 10 ... … Rear cylinder, 11 …… Projection part, 12 …… Rod-shaped object holder, 13 …… Open groove, 14 …… Annular groove, 15 …… Wick tank, 15a …… Front wick tank part, 15b …… Refill rear part ( Rear core tank part), 21 …… side knock operation mechanism,
22 …… Tank joint, 23 …… Pivot shaft, 24a …… Lever part, 2
4b …… Lever part, 24c …… Tip part, 24 …… Operating lever, 2
5 …… Axial slit, 26 …… Arc concave groove, 27 …… Arc convex portion, 28 …… Top screw, 29 …… Fit groove.

Claims (4)

(57) [Scope of utility model registration request] 1. A tip of the outer cylinder (1) by inserting a writing refill (2) in the outer cylinder (1) and side-operating the refill (2) against an elastic body (3). In a writing instrument capable of feeding a writing core (4) from a portion, a guide groove (6) is provided on an inner surface of a rear portion of the outer cylinder (1), and a spiral groove (7) is provided on an outer periphery of the guide groove (6). The protrusion (9) of the inner cylinder (8) has the fitting, and the rear part (15b) of the writing refill (2) is inserted into the inner cylinder (8) and the outer cylinder (1) ) A rear cylinder (10) is rotatably attached to the rear part of the rear cylinder (10) such that the rear cylinder (10) is immovable in the axial direction, and a protrusion (11) provided on the inner surface of the rear cylinder (10) is fitted into the spiral groove (7). A writing instrument with a rod-shaped product feeding device, which is obtained by fixing a rod-shaped substance holder (12) to (8) and holding the rod-shaped substance (5) in the rod-shaped substance holder (12). . 2. The writing instrument with a stick-shaped article feeding device according to claim 1, wherein an open groove (13) or an open slit communicating with the spiral groove (7) is provided at the end of the inner cylinder (8). 3. The writing instrument with a stick-shaped article feeding device according to claim 1, wherein an annular groove (14) slightly shallower than the spiral term (7) is provided at the end of the inner cylinder (8). 4. An open groove (13) communicating with the spiral groove (7) or an open slit and an annular groove (14) slightly shallower than the spiral groove (7) are provided at the end of the inner cylinder (8). The writing instrument with a stick-shaped material feeding device according to claim 1.