JPH02313Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a refill container for sharp pencils.The purpose of the invention is to allow the lid to be opened and closed articulately with one hand, and to insert the opened lid into the sharp pencil lead tank. The refill in the refill container can be easily stored in the refill tank of the sharp pencil without having to take the trouble of taking out the refill by coming into contact with the refill tank opening.

As shown in FIGS. 1 and 2, the applicant first opened the rear end of the main body 1 made of synthetic resin, etc., and then opened the refill 2.
is stored in the storage part 3, and then the tail plug 4 is sealed. When in use, the insertion part 5a is inserted into the opening of the lead tank 7 by breaking off the knob 5b and removing the eraser or eraser (not shown) attached to the upper end of the lead tank 7 of the sharp pencil 6. We devised a refill case in which the refill case 2 inside the main body 1 is inserted into the refill tank 7, and the refill case is thrown away after the delivery is completed, but since it is disposable only once, a large amount of refills are needed. It has the disadvantage that it cannot be stored and used many times, making it uneconomical.

This invention eliminates the drawbacks of the conventional method by allowing the lid to be opened and closed easily and smoothly with one hand, and by inserting the lid into the lead tank of the sharp pencil or by making contact with the opening of the lead tank to store refills in the lead tank. This is what I did.

3 and 4 show a first embodiment of the present invention, in which a refill storage chamber 10a is formed in the longitudinal direction of a flat box-shaped main body 10, and a cylindrical body 11a and a fan-shaped base are formed in an upper opening 10b of the refill storage chamber 10a. The protruding shafts 11d on both sides of the base 11b of the lid 11, in which a refill passage 11c consisting of a vertical groove with a U-shaped cross section is formed in the refill passage 11c, are rotatably attached to the base 11b of the lid 11, and the outer diameter of the cylindrical body 11a is set to the inner diameter of the lead tank of the sharp pencil. The size is approximately equal to or smaller than that of the refill passage 1 when the lid is opened.
1c and the refill storage chamber 10a are arranged to communicate linearly, one side wall of the opening that the lid base comes into contact with when rotating is made into a thin plate-like elastic wall 10c, and a maximum diameter part P is provided in the middle of the base part 11b. The maximum diameter portion P presses and displaces the elastic wall 10c during rotation, so that the lid 11 can be opened and closed jointly. 12 is a refill.

Next, the effect will be explained. In use, when the lid 11 is rotated upward with the thumb of the hand holding the main body 10 as shown in FIG. 3, the maximum diameter portion P of the base 11b of the lid 11 presses and displaces the elastic wall 10c as shown in FIG. When the dead point is exceeded, the pressing stops and the elastic wall 10c returns to its original state, pressing and holding the back of the lid 11 which is opened completely upright as shown in FIG. In this state, the lid 11
When the cylindrical body 11a is inserted into the lead tank (not shown) of the sharp pencil or comes into contact with the lead tank opening, the refill 12 inside the main body 10 is inserted into the refill passage 1 of the lid 11.
0c and is stored in a certain amount in the wick tank.

FIG. 7 shows a lid according to a second embodiment of the present invention, in which a through hole 11c' through which three or four refills can pass is formed instead of the vertical groove having a U-shaped cross section as in the first embodiment.

FIG. 8 shows a third embodiment of the present invention, which differs from the first embodiment in that an elastic wall 10c' is formed on one side wall inside the upper opening 10b of the refill storage chamber 10a, and the lid body The maximum diameter part P of the outer periphery of the base 11b is set at another position instead of the intermediate position, and the refill storage chamber 10a
The refill passage 11c of the lid 11 ensures that the refill 1
2 is guided by an elastic wall 10
This is because the guide portion 10d is provided integrally with c'.

According to the present invention, a cylindrical body having an outer diameter approximately equal to or smaller than the inner diameter of the lead tank of the sharp pencil is formed in the lid, a refill passage is formed through the cylindrical body and the base, and the base abuts when rotated. One side wall of the opening is used as an elastic wall to open and close the lid jointly, so it can be easily opened and closed with one hand.The lid can be inserted into the lead tank of the sharp pencil, or by touching the opening of the lead tank to insert a refill. It is economical and convenient because it can be stored and the above operations can be repeated.

Note that the elastic wall may be a leaf spring, or an elastic material may be attached to the inner surface.

[Brief explanation of drawings]

Figure 1 is a front sectional view of the conventional product, Figure 2 is a cutaway front view of the main part of the conventional product when in use, and Figure 3 is the first part of the present invention.
4 is a perspective view of the lid shown in FIG. 1, FIG. 5 is a front sectional view of the lid shown in FIG. 3 when it is half open, and FIG. 6 is a front sectional view of the lid shown in FIG. Fig. 7 is a front sectional view when fully opened, and Fig. 8 is a perspective view of the lid of the second embodiment of the present invention.
The figure shows a third embodiment of the present invention, and is a front sectional view when the lid is fully opened. 10...Main body, 10a...Refill storage chamber, 10b
...Opening, 10c, 10c'...Elastic wall, 11...
...Lid, 11a...Cylinder, 11b...Base, 11
c, 11c'...Replacement lead passage, 11d...Protruded shaft.

Claims (1)

[Scope of utility model registration request] The upper opening of the refill storage chamber of the main body has an external shape that can be inserted into the lead tongue of a sharp pencil, and the lid body that forms a refill passage is rotatably attached, and when the lid is opened, the refill passage and refill storage are closed. The chambers are not connected in a straight line,
One side wall of the opening that the lid base comes into contact with when rotating is made of an elastic wall, so that the maximum diameter part of the outer periphery of the lid base presses and displaces the elastic wall when the lid base rotates, allowing the lid to open and close articulately. Refill container.