JPH10315684A - Lead replacing case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lead replacing case with the capability of positively retaining a lid body in a fallen state in a lid body rotatable about a rotation spindle. SOLUTION: A non-circular attachment hole 2E is formed on a lid stationary member 2 and, in addition, a cutting slit 2F crossing over the attachment hole 2E is formed on the lid stationary member 2 for forming the attachment hole 2E in an expandable manner. A non-circular cross section rotation spindle 4D is set on the lid body 4, and then the lid body 4D is rotatably secured to the attachment hole 2E. When the lid body 4 is fallen down to close the lead taking out port 2A, the rotation spindle 4D of the lid body 4 is engaged with the attachment hole 2E of the lid stationary 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]

According to the present invention, in order to achieve the above object, a non-circular mounting hole is formed in a lid fixing member,
Further, a notch is formed in the lid fixing member so as to extend through the mounting hole so that the mounting hole can be expanded, and a rotating shaft having a non-circular cross section is formed in the lid, and the rotating shaft of the lid is connected to the lid fixing member. When the core outlet is closed by turning the lid sideways and closing the core outlet, the rotation axis of the lid is engaged with the mounting hole 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 4 having a non-circular cross section protruding backward from the front wall.
D is formed. The cross section of 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 a ridge 4E having an appropriate width is formed on the edge of the lid 4 in a direction from the front wall to the back.
FIG. 7 is a rear view of the lid viewed from the rear side.

The rotating shaft 4D of the lid 4 described above is fitted into the mounting hole 2E of the lid fixing member 2, and the rotating shaft 4D of the lid 4 is
Is pressed by the flat upper edge formed in the mounting hole 2E of the lid fixing member 2 and tilts to the right, and the projection 4B formed on the lid 4A of the lid 4 is , And the core outlet 2A of the lid fixing member 2 is closed by the lid 4A of the lid 4. In this state, the lid fixing member 2 is inserted from above the main body 1, the lower portion 2H of the lid fixing member 2 is fitted into the mounting portion 1A of the main body 1, and 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 top 4F of the rotating shaft 4D of the lid 4 and the lid fixing member 2
By the mounting holes 2E, the moderation is obtained when the lid 4 is opened and closed, and the finger to be operated can feel the state in which the lid 4 stands up and the side down, and is very easy to operate. 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. Also, the lid fixing member 2
The protrusion 2G and the opening 1B of the main body 1 are formed in an oval shape having flat portions on both sides. Therefore, even when a force in the rotation direction is generated in the cover fixing member 2 when the cover 4 is rotated, the cover fixing member 2
The flat portions of the projections 2G are abutted against the flat portions of the opening 1B of the main body 1 to prevent the rotation of the lid fixing member 2, and there is no possibility that the lid fixing member 2 comes off from the main body 1.

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.

In each of the above-described embodiments, the core outlet is closed by engaging the projection of the lid with the projection of the lid fixing member, but this configuration is not always necessary.

The structure in which the rotation shaft of the lid is engaged with the mounting hole of the lid fixing member is not limited to the above embodiment.
A fifth embodiment of the present invention shown in FIG. 17 may be configured as a refill case. The replacement lead case of the fifth embodiment has a circular mounting hole 42E formed in the upper portion 42B of the lid fixing member 42, and at a position inclined 45 degrees left and right from the center above the circular mounting hole 42E from the center. A concave portion 42N is formed, and a linear cut groove 42F that crosses substantially the center of the mounting hole 42E is formed from the left side of the upper portion 42B, so that the mounting hole 42E can be appropriately expanded. The cover 14 is formed with a rotating shaft 14D that protrudes rearward from the front wall. The rotating shaft 14
D has a circular cross-sectional shape with a projection 14G provided on a part thereof. The rotating shaft 14D of the lid 14 is fitted into the mounting hole 42E of the lid fixing member 42, and the projection 14G formed on the rotating shaft 14D of the lid 14 is fitted into the concave portion 42N on the right side of the mounting hole 42E of the lid fixing member 42. The core outlet 42A of the lid fixing member 42 is closed by the engagement with the lid 14A of the lid 14. Although not shown, in the state where the lid 14 is raised and the core outlet 42A is opened, the protrusion 14G of the rotating shaft 14D of the lid 14 is attached to the mounting hole 4 of the lid fixing member 42.
It is engaged with the concave portion 42N on the left side of 2E.

In the case of the fifth embodiment, the lid 14 is turned sideways to close the core outlet 42A, and the lid 14 is raised to open the core outlet 42A. Since the protrusion 14G of the rotary shaft 14D of 14 is engaged with the concave portion 42N of the mounting hole 42E of the lid fixing member 42, it is possible to carry the portable terminal or take out the refill core with the lid 14 securely stopped. In addition, when the lid 14 is operated by a finger, the position of the lid 14 in the upright state and the lid 1
The stop position when 4 is lying down can be checked with the touch of a finger,
It is very easy to operate.

[0018]

As described above in detail, according to the present invention, when the cover is turned sideways and the core outlet is closed, the rotation shaft of the cover is engaged with the mounting hole of the cover fixing member. In this way, the lid can be reliably kept in the down position.

[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.

[Explanation of symbols]

 2 Lid fixing member 2A Core exit of lid fixing member 2 2E Mounting hole of lid fixing member 2 2F Groove of lid fixing member 2 4 Lid 4D Rotation axis of lid 4 12 Lid fixing member 12A Core exit of lid fixing member 12 12E Mounting hole of the lid fixing member 12 12F Groove of the lid fixing member 12 14 Lid 14D Rotation axis of the lid 14 22 Lid fixing member 22A Core exit of the lid fixing member 22 22E Mounting hole of the lid fixing member 22 32 Lid fixing member 32A Core outlet of lid fixing member 32 32E Mounting hole of lid fixing member 32 42 Lid fixing member 42A Core outlet of lid fixing member 42E Mounting hole of lid fixing member 42 42F Groove of lid fixing member 42

Claims (3)

[Claims] 1. A replacement core 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, wherein a non-circular mounting hole is formed in the lid fixing member. Forming a kerf crossing the mounting hole in the lid fixing member so that the mounting hole can be expanded,
A rotating shaft having a non-circular cross section is formed on the lid, and the rotating shaft of the lid is rotatably attached to the mounting hole of the lid fixing member. Wherein the rotating shaft is engaged with a mounting hole of the lid fixing member. 2. The refill lead case according to claim 1, wherein the non-circular mounting hole formed in the lid fixing member has a half semicircular shape and a part of the other half of the edge is flat. . 3. A cross-sectional shape of a rotating shaft formed on a lid,
The refill lead case according to claim 1 or 2, wherein a half is formed in a semicircular shape and the other half is formed in a substantially mountain shape.