JPH10305686A - Refill lead case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To securely close a lead outlet by rotatably mounting a cover at a cover fixing member, and locking a protrusion of the cover to a protrusion of the member at the time of tilting down the cover to close the outlet. SOLUTION: In the case of closing a lead outlet 2A, a rising cover 4 is tilted down so that a top 4F of a rotary shaft 4D urges to lift an upper edge, thereby enlarging a mounting hole 2E. When the top 4F is inclined to a right side, the hole 2E tends to close, and the cover 4 is automatically tilted down, and hence a protrusion 4B of the cover 4 is brought into contact with a protrusion 3D of a cover fixing member 2. And, when the cover 4 is forcibly tilted down, the shaft 4D is oscillated to right side, and the protrusion 4B of the cover 4 is locked over the protrusion 2D of the member 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refill case for storing a refill of a mechanical pencil.

[0002]

2. Description of the Related Art Conventionally, in a replacement lead case in which a core outlet is opened by erecting a lid, and the core outlet is closed by tilting the lid sideways, a projection is rotatably fitted into a hole portion. The lid was rotatably attached to the case body.

[0003]

However, in the above-described refill lead case, the lid is kept closed or the lid is kept open due to frictional resistance between the projection and the hole. Therefore, when the lid is repeatedly opened and closed, the projections are worn and the frictional resistance at the time of rotation of the lid is weakened, so that the lid may not be reliably closed. An object of the present invention is to provide a replacement lead case that solves the above-mentioned problems.

[0004]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a lid fixing member which is rotatably mounted on a lid fixing member, and when the lid is turned sideways and a core outlet is closed, the lid is closed. Are locked to the protrusions of the lid fixing member. Therefore, the core outlet can be reliably closed by the lid.

[0005]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. FIGS. 1, 2, 3, 4 and 5 show a replacement case according to a first embodiment of the present invention. The main body 1 is made of a transparent synthetic resin and is formed in a box shape having an open upper end. The main body 1 has a mounting portion 1 in which an inner surface of an upper side wall is depressed.
A is formed. Further, the upper end of the main body 1 is configured such that a side wall is cut out and upper pieces of the front wall and the back wall can be appropriately elastically deformed. In the upper piece of the back wall of the main body 1, as shown in FIG. 5, an oval opening 1B having flat portions on both sides is formed. A core outlet 2A is formed on the right side of the lid fixing member 2, and the bottom surface of the lid fixing member 2 is inclined so that the extra lead 3 is gathered at the core outlet 2A. An upper part 2B protruding upward is formed in the lid fixing member 2, and the upper part 2B is formed with a cut groove 2C in an arc of about 120 degrees from the left side. On the right side of the upper part 2B of the lid fixing member 2,
A protrusion 2D for locking the lid 4 is formed to protrude rightward. Further, a trapezoidal mounting hole 2E is formed in the upper portion 2B of the lid fixing member 2 such that the lower half is semicircular, the upper half is vertical at the left edge, the right edge is inclined, and the upper edge is flat, A straight cut groove 2F crossing substantially the center of the mounting hole 2E is formed in the upper portion 2B.
The mounting hole 2E is formed so as to be able to be appropriately opened. As shown in FIG. 6, an oval-shaped projection 2G having flat portions on both sides is formed on the upper back side of the lid fixing member 2. A lid 4A for closing the core outlet 2A is formed on the right side of the lid 4 so as to protrude rearward from the front wall. A projection 4B for locking is formed to protrude leftward. An uneven portion 4C is formed on the right side of the lid portion 4A so as not to slip when operated with a finger. Further, on the left side of the lid 4, a rotating shaft 4D protruding from the front wall to the back is formed. The rotating shaft 4D is formed such that the lower left half is semicircular and the upper right half is substantially mountain-shaped. Further, the left end of the lid 4 is formed in a semicircular shape, and the edge thereof is formed with a raised portion 4E having an appropriate width in the direction from the front wall to the back. FIG. 7 is a rear view of the lid viewed from the rear side.

The rotation shaft 4D of the lid 4 described above is fitted into the mounting hole 2E of the lid fixing member 2, and the projection 4B formed on the lid 4A of the lid 4 engages with the projection 2D of the lid fixing member 2. The core outlet 2A of the lid fixing member 2 is stopped by the lid 4A of the lid 4.
Is closed. In this state, the lid fixing member 2 is inserted from above the main body 1, and the lower portion 2H of the lid fixing member 2 is
And the projection 2G of the lid fixing member 2 is fitted into the opening 1B of the main body 1. When the projection 2G of the lid fixing member 2 is fitted into the opening 1B of the main body 1, the upper fixing portions formed on the front and back walls of the main body 1 are elastically deformed, so that the lid fixing member 2 is easily mounted on the main body 1. 1 is inserted. Further, a plurality of extra cores 3 are housed in the main body 1 to constitute an extra core case.

In order to take out the refill from the refill lead case, the lid 4 is lifted by operating the uneven portion 4C formed on the right side of the lid 4A of the lid 4 with a finger, and the rotating shaft 4D of the lid 4 is moved. To rotate. Then, first, the projection 4B of the lid 4 gets over the projection 2D of the lid fixing member 2. At this time, the rotation axis 4 of the lid 4
D presses the inclined right edge of the mounting hole 2E of the lid fixing member 2 and swings to the right while expanding the mounting hole 2E, so that the projection 4B of the lid 4 easily projects from the lid fixing member 2. Part 2D can be overcome. Further, when the lid 4 is rotated, the substantially mountain-shaped top 4F formed on the rotating shaft 4D pushes up a flat upper edge formed in the mounting hole 2E of the lid fixing member 2 to expand the mounting hole 2E. When the top 4F of the rotary shaft 4D is tilted to the left, the cover 4 is automatically raised to close the mounting hole 2E, and the raised portion 4E of the cover 4 is
Abuts on the stopper portion 2I of the notch 2C, and stops with the lid 4 standing up. Accordingly, the core outlet 2A of the lid fixing member 2 is opened, and the state shown in FIG. 8 is obtained, and the replacement core 3 in the main body 1 can be freely taken out. When closing the core outlet 2A again, when the rising lid 4 is folded down, the top 4F of the rotating shaft 4D pushes up the upper edge to expand the mounting hole 2E, and when the top 4F is inclined rightward, the mounting hole 2E is opened. The lid 4 is automatically tilted down so as to close, and the projection 4B of the lid 4 comes into contact with the projection 2D of the lid fixing member 2. When the lid 4 is forcibly lowered, the rotation shaft 4D swings rightward, and the projection 4B of the lid 4 gets over the projection 2D of the lid fixing member 2 and is locked. Returns to the state.

In the refill case of the first embodiment described above, the projection 4B of the lid 4 is locked to the projection 2D of the lid fixing member 2, and the top 4F of the rotating shaft 4D of the lid 4 is A moderation is obtained when the lid 4 is opened and closed by the mounting hole 2E of the lid fixing member 2, and the finger to be operated has a feeling that the lid 4 is in a standing state and a state in which the lid 4 is lying down, and is very easy to operate. It is. Moreover, since the cover fixing member 2 can be attached to the main body 1 with the lid 4 attached after the extra core 3 is stored in the main body 1, productivity can be improved. Further, since the protrusion 2G of the lid fixing member 2 and the opening 1B of the main body 1 are formed in an oval shape having flat portions on both sides, when the lid 4 is rotated, a force in the rotation direction is applied to the lid fixing member 2. Even if this occurs, the flat portion of the projection 2G of the lid fixing member 2 abuts against the flat portion of the opening 1B of the main body 1 to prevent the rotation of the lid fixing member 2 and prevent the lid fixing member 2 from rotating.
Does not come off the body 1 at all.

FIGS. 9, 10 and 11 show a second embodiment of the present invention. The same members as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted. The main body 11 has an attachment portion 11A formed by recessing the inner surface of the upper left side wall. At an appropriate position on the back wall of the main body 11, a rectangular opening hole 11B extending left and right is formed as shown in FIG. The lid fixing member 12 has an upper portion 12B projecting upward, and the upper portion 12B is approximately 12
The kerf 12C is formed by a 0-degree arc. On the right side of the upper portion 12B of the lid fixing member 12, a projection 12D for locking the lid 4 is formed so as to project rightward. Furthermore,
On the upper part 12B of the lid fixing member 12, the lower half is semicircular,
The upper half has a trapezoidal mounting hole 12E in which the left edge is vertical, the right edge is inclined and the upper edge is flat, and the mounting hole 12E is formed.
Is formed from the left side of the upper portion 12B, and the mounting hole 12E can be appropriately expanded. As shown in FIG.
As shown in FIG. 1, a U-shaped cut groove is formed to
2J are formed, and a rectangular projection 12G extending left and right is formed on the back surface of the elastic piece 12J. The rotation shaft 4D of the lid 4 is fitted into the mounting hole 12E of the lid fixing member 12. When the lid fixing member 12 is inserted from above the main body 11 in this state, the projection 12G is inserted into the main body 11 while the elastic piece 12J formed on the lower portion 12H of the lid fixing member 12 is bent, and the projection of the lid fixing member 12 is formed. 12G is fitted into opening hole 11B of main body 11. At the same time, the lower portion 12H of the lid fixing member 12 is fitted to the mounting portion 11A of the main body 11. The core outlet 12A is formed by appropriately separating the right edge of the lower portion 12H of the lid fixing member 12 and the right side wall of the main body 11.

In the refill lead case of the second embodiment described above, the refill lead is discharged between the lid fixing member 12 and the main body 11, so that the refill lead does not become clogged at the lower end of the lead outlet 12A, so that the lead lead is smooth. It can be discharged. Further, since the projection 12G of the lid fixing member 12 and the opening hole 11B of the main body 11 are formed in a rectangular shape extending left and right, when the lid 4 is rotated, a force in the rotation direction is generated on the lid fixing member 12. However, the flat portion of the projection 12G is in contact with the flat portion of the opening hole 11B to prevent rotation of the lid fixing member 12, and there is no possibility that the lid fixing member 12 comes off.

FIGS. 12 and 13 show a refill case according to a third embodiment of the present invention. The same members as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted. The main body 21 is made of a transparent synthetic resin, and has a U-shaped cross section with an open upper and lower end. Projections 21C are formed on the upper and lower left sides of the front and back walls of the main body 21. The lid fixing member 22 has a left side wall 22K formed on the left side and a bottom wall 22L formed on the lower end, and concave portions 22M on the upper and lower sides of the left side wall 22K.
To form Further, a core outlet 22A is formed in the lid fixing member 22, and a mounting hole 22E is formed in the upper portion 22B. The rotation shaft 4D of the lid 4 is fitted into the mounting hole 22E of the lid fixing member 22, and the core outlet 22A is closed. In this state, the lid fixing member 22 is inserted from the left side of the main body 21,
The projection 21C of the main body 21 is fitted and fixed in the concave portion 22M of the lid fixing member 22.

In the refill case of the third embodiment described above, since the lid fixing member 22 is fixed on the upper and lower sides of the main body 21, no force is applied to the lid fixing member 22 in the rotating direction. There is no danger of coming off.

FIGS. 14, 15 and 16 show a fourth embodiment of the present invention.
FIG. 7 shows a replacement core case of the embodiment, in which the same members as those of the first embodiment are denoted by the same reference numerals, and description thereof is omitted. The main body 31 is made of a transparent or colored synthetic resin,
It is formed from left and right side walls and a front wall. A lid fixing member 32 is integrally formed on the upper part of the main body 31. The lid fixing member 32 has a mounting hole 32E and a core outlet 32A. The rotation shaft 4D of the lid 4 is fitted into the mounting hole 32E of the lid fixing member 32, and the core outlet 32A is closed by the lid 4. Further, a transparent back wall 5 made of a synthetic resin is fixed to the main body 31 by welding or bonding.

The refill case of the fourth embodiment described above is
Since the main body 31 and the lid fixing member 32 are integrally formed, there is obtained an effect that there is no possibility that the lid fixing member 32 comes off. Furthermore, it is also possible to make only the back wall 5 transparent and check the presence or absence of the extra lead 3.

FIG. 17 shows a replacement core case according to a fifth embodiment of the present invention. The same members as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted. A rotary shaft 14D having a circular cross section is formed on the lid 14, and the rotary shaft 14 </ b> D is attached to the lid fixing member 2.
, And the projection 14B formed on the lid 14A of the lid 14 is engaged with the projection 2D of the lid fixing member 2.

In order to take out the refill in this refill lead case, when the lid 14A of the lid 14 is lifted, the lid 14A is lifted.
Of the lid fixing member 2 gets over the projection 2D of the lid fixing member 2.
At this time, the rotating shaft 14D of the lid 14 presses the inclined right edge of the mounting hole 2E of the lid fixing member 2, and swings rightward while expanding the mounting hole 2E. Further, when the lid 14 is rotated, the lid 14 rises while the rotating shaft 14D has frictional resistance with the mounting hole 2E. And the raised portion 14E of the lid 14
Abuts against the stopper portion 2I of the notch 2C of the lid fixing member 2, and is locked in a state where the lid body 14 is raised. Therefore,
The core outlet 2A of the lid fixing member 2 is opened to be in a state shown in FIG.

[0017]

As described above in detail, according to the present invention, the projection of the lid is locked to the projection of the lid fixing member,
The lid, which is rotatable about the rotation axis, is securely locked, and the core outlet can be closed.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a first embodiment of a refill case according to the present invention.

FIG. 2 is a cross-sectional view taken along line AA of FIG.

FIG. 3 is a sectional view taken along line BB of FIG. 1;

FIG. 4 is an enlarged cross-sectional view showing a main part of the refill lead case according to the first embodiment of the present invention.

FIG. 5 is an enlarged rear view showing a main part of the refill core case according to the first embodiment of the present invention.

FIG. 6 is an enlarged rear view showing a cover fixing member in the refill case according to the first embodiment of the present invention.

FIG. 7 is an enlarged rear view showing a cover of the refill case according to the first embodiment of the present invention.

FIG. 8 is an enlarged cross-sectional view showing a state in which a lid body is set up in the refill case according to the first embodiment of the present invention.

FIG. 9 is an enlarged cross-sectional view illustrating a main part of a refill case according to a second embodiment of the present invention.

FIG. 10 is an enlarged rear view showing a main part of a refill case according to a second embodiment of the present invention.

FIG. 11 is an enlarged rear view showing a lid fixing member in the lead case of the second embodiment of the present invention.

FIG. 12 is a cross-sectional view illustrating a refill lead case according to a third embodiment of the present invention.

FIG. 13 is a sectional view taken along line AA of FIG.

FIG. 14 is a sectional view showing a refill case according to a fourth embodiment of the present invention.

FIG. 15 is a sectional view taken along line AA of FIG. 14;

FIG. 16 is a sectional view taken along line BB of FIG. 14;

FIG. 17 is an enlarged sectional view showing a main part of a refill case according to a fifth embodiment of the present invention.

FIG. 18 is an enlarged sectional view showing a state in which a lid is set up in a refillable case according to a fifth embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 2 lid fixing member 2A core outlet of lid fixing member 2 2D projection of lid fixing member 2 2E mounting hole of lid fixing member 2 2F cut groove of lid fixing member 2 4 lid 4B projection of lid 4 4D of lid 4 Rotating shaft 12 Lid fixing member 12A Core outlet of lid fixing member 12 12D Projection of lid fixing member 12E Mounting hole of lid fixing member 12F Groove of lid fixing member 12 14 Cover 14B Projection of lid 14 14D Lid 14 rotation shaft 22 lid fixing member 22A core outlet of lid fixing member 22E mounting hole of lid fixing member 22 32 lid fixing member 32A core outlet of lid fixing member 32 32E mounting hole of lid fixing member 32

Claims (2)

[Claims] 1. A replacement lead case, in which a core outlet is opened by rotating a lid and erecting the lid, and closing the core outlet by tilting the lid sideways, the lid is rotated by a lid fixing member. A refill lead case, wherein a projection of the lid is locked to a projection of a lid fixing member when the lid is freely mounted and the lid exits sideways to close the core outlet. 2. A mounting hole is formed in the lid fixing member, and a kerf is formed in the lid fixing member to cross the mounting hole so that the mounting hole can be expanded. 2. The refill lead case according to claim 1, wherein the cover is rotatably mounted, and the mounting hole of the lid fixing member is widened so that the rotation axis of the lid can be swung in the mounting hole.