KR20230137319A - Replacement lead case for mechanical pencil - Google Patents

Abstract

A replacement lead case for a mechanical pencil includes a case body for accommodating a replacement lead for a mechanical pencil, a cover member that slides relative to the case body to open and close a replacement lead outlet of the case body, and the cover member. An engagement state in which one of the case body or the cover member is engaged by moving relative to the case body and the cover member in a cross direction crossing the slide direction with respect to the case body, and the It is provided with a locking member configured to switch between a non-engaged state and a non-engaged state on one side, and in the engaged state, the cover member is configured to be maintained in a state that blocks the replacement lead outlet and cannot slide with respect to the case body. do.

Description

Replacement lead case for mechanical pencil

This disclosure relates to a replacement lead case for a mechanical pencil.

Conventionally, as a replacement lead case for a mechanical pencil, a pivot coupling portion that allows the case body and the cover member to rotate relatively in a fan shape is formed on the bottom portion of the case body as a pivot point, and the replacement lead outlet of the case body is open. It is known that the end of a replacement lead for a mechanical pencil is exposed to the outside in an open state so that the replacement lead for a mechanical pencil can be taken out from there (Patent Document 1).

Patent Document 1: Japanese Patent Publication No. 2020-157539

Disclosed in Patent Document 1 is an operation of rotating the case body and the cover member relatively into a fan shape with one hand, and the end of the replacement lead for a mechanical pencil is exposed to the outside with the replacement lead outlet of the case main body being opened. We are making it possible. Then, the replacement lead for the mechanical pencil is taken out by hand, and the replacement lead for the mechanical pencil is replenished in the mechanical pencil.

Next, after replenishing the replacement lead for a mechanical pencil into the mechanical pencil, an operation is performed again to rotate the case body and the cover member relatively in a fan shape, so that the cover member closes the replacement lead outlet of the case body. At this time, a protrusion is formed on one side of the cover member and the case body, and a fitting portion of the protrusion is formed on the other side, so that the cover member maintains the state in which the replacement core outlet is closed. However, when the cover member is fixed to the case body by fitting the protrusion and the fitting portion in this way, it may be difficult to reliably maintain the state in which the cover member closes the replacement core outlet.

In view of the above-described circumstances, the object of at least one embodiment of the present invention is to provide a replacement lead case for a mechanical pencil that can more reliably maintain the replacement lead outlet in a closed state.

A replacement lead case for a mechanical pencil according to at least one embodiment of the present invention,

A case body to accommodate a replacement lead for a mechanical pencil,

a cover member capable of opening and closing a replacement core outlet of the case body by sliding relative to the case body;

An engaged state in which one of the case body or the cover member is engaged by moving relative to the case body and the cover member in a cross direction crossing the slide direction of the cover member with respect to the case body, and the case body or the cover member; A locking member configured to switch from a non-engaged state to one of the cover members.

Equipped with

In the engaged state, the cover member is configured to be maintained in a state that blocks the replacement core outlet and cannot slide relative to the case body.

According to at least one embodiment of the present invention, there is provided a replacement lead case for a mechanical pencil that can more reliably maintain the closed state of the replacement lead outlet.

Figure 1 is a front view showing when the locking member of the replacement lead case for a mechanical pencil according to one embodiment is in an engaged state.
Figure 2 is a front view showing when the locking member of the replacement lead case for a mechanical pencil according to one embodiment is in a non-engaged state.
Figure 3 is a front view showing when the locking member of the replacement lead case for a mechanical pencil according to one embodiment is in a non-engaged state.
Fig. 4 is an exploded perspective view from the front side of a replacement lead case for a mechanical pencil according to one embodiment.
Fig. 5 is an exploded perspective view from the back side of a replacement lead case for a mechanical pencil according to one embodiment.
Fig. 6 is a perspective view showing the replacement lead case for mechanical pencil shown in Figs. 4 and 5 when the locking member is in an engaged state.
FIG. 7 is a cross-sectional view of the replacement lead case for a mechanical pencil shown in FIG. 6.
Fig. 8 is a perspective view showing the replacement lead case for mechanical pencil shown in Figs. 4 and 5 when the locking member is in a non-engaged state.
FIG. 9 is a cross-sectional view of the replacement lead case for a mechanical pencil shown in FIG. 8.
Fig. 10 is a perspective view showing the replacement lead case for mechanical pencil shown in Figs. 4 and 5 when the locking member is in a non-engaged state.
Fig. 11 is a cross-sectional view of the replacement lead case for a mechanical pencil shown in Fig. 10.
Figure 12 is an AA cross-sectional view showing a state in which a plurality of replacement cores of Figure 7 are accommodated.
FIG. 13 is the same perspective view as FIG. 10 and shows a replacement core case in which a plurality of replacement cores are accommodated.

Hereinafter, several embodiments of the present invention will be described with reference to the accompanying drawings. However, the dimensions, materials, shapes, relative arrangements, etc. of the component parts described as embodiments or shown in the drawings are not intended to limit the scope of the present invention thereto and are merely illustrative examples.

1 to 3 are front views of a replacement lead case for a mechanical pencil according to an embodiment, respectively, when the locking member is in an engaged state, when the locking member is in a non-engaged state and the replacement lead outlet is in a closed state, and , This is a drawing showing when the locking member is in a non-engaged state and the replacement core outlet is in an open state.

Figures 4 and 5 are exploded perspective views from the front side and the back side, respectively, of a replacement lead case for a mechanical pencil according to one embodiment. Figures 6, 8 and 10 are perspective views of the replacement lead case for the mechanical pencil shown in Figures 4 and 5, respectively, when the locking member is in an engaged state, the locking member is in a non-engaged state and the replacement lead outlet is blocked. This is a diagram showing the state when the locking member is in a non-engaged state and the replacement core outlet is in an open state. Figures 7, 9, and 11 are cross-sectional views of the replacement lead cases for mechanical pencils shown in Figures 6, 8, and 10, respectively. FIG. 12 is a cross-sectional view taken along line A-A of FIG. 7. FIG. 13 is a perspective view similar to FIG. 10, showing a replacement core case in which a plurality of replacement cores are accommodated.

1 to 13, a replacement lead case for a mechanical pencil (hereinafter also referred to as a replacement lead case) 1 according to some embodiments includes a case body 2, a cover member 4, and , and is provided with a locking member (5).

The case body 2 is configured to accommodate a replacement lead 3 for a mechanical pencil (see FIGS. 3 to 5, etc.). The case body 2 has a replacement core outlet 2a, which is an opening for loading and unloading the replacement core 3, and a bottom 2c, and extends between the replacement core outlet 2a and the bottom 2c. . In the exemplary embodiment shown, the case body 2 extends between the replacement core outlet 2a and the bottom 2c along the longitudinal direction of the case body 2.

Additionally, the distance from the inner bottom portion 2e (see Fig. 7, etc.) in the longitudinal direction of the case body 2 to the replacement core outlet 2a is the length of the replacement core 3 accommodated in the case body 2. It could be shorter than that. In this case, since a part of the replacement core 3 accommodated in the case body 2 is exposed from the case body 2, the replacement core 3 is inserted into the case body with the replacement core outlet 2a open. It is easy to take out from (2).

The cover member 4 can slide with respect to the case body 2, and is configured to be able to open and close the replacement core outlet 2a of the case body 2 by sliding with respect to the case body 2. . The state in which the replacement core outlet 2a is open means that at least a part of the replacement core outlet 2a is not covered by the cover member 4, and the replacement core 3 accommodated in the case body 2 can be taken out with a finger. It means the state of being. In addition, the state in which the replacement core outlet 2a is blocked means that the entire replacement core outlet 2a is covered by the cover member 4, and the replacement core 3 accommodated in the case body 2 cannot be extracted with the finger. It means state.

The locking member 5 moves relative to the case body 2 and the cover member 4 in a cross direction that intersects the slide direction of the cover member 4 with respect to the case body 2, so that the case body 2 Alternatively, it is configured to switch between an engaged state in which one of the cover members (4) is engaged and a non-engaged state in which one of the case body (2) or the cover member (4) is not engaged.

In the engaged state of the locking member 5, the replacement lead outlet 2a is blocked by the cover member 4 and the cover member 4 is maintained in a state in which it cannot slide with respect to the case body 2. On the other hand, in the non-engaged state of the locking member 5, the cover member 4 can slide with respect to the case body 2, and the cover member 4 slides with respect to the case body 2, thereby creating a replacement core outlet ( 2a) can be opened or closed.

In the exemplary embodiment shown, the cover member 4 is slideable along a second direction with respect to the case body 2, and the locking member 5 crosses the case body 2 in the second direction. It is possible to move along a first direction (see FIGS. 1 to 3, 7, 9, and 11). The first direction is a direction connecting the replacement core outlet 2a and the bottom 2c of the case body 2, and may be the longitudinal direction of the case body 2. The second direction may be a direction perpendicular to the first direction or a width direction of the case body 2.

In the above-described embodiment, the replacement lead case 1 for a mechanical pencil includes a cover member 4 capable of opening and closing the replacement lead outlet 2a of the case body 2 by sliding with respect to the case body 2. and a locking member (5) that can be engaged with either the case body (2) or the cover member (4). Then, by moving the locking member 5 in the cross direction, an engaged state is established in which the locking member 5 is engaged with one of the case body 2 or the cover member 4, and the locking member 5 is engaged with the case body 2. Alternatively, it is possible to switch the non-engaged state in which one of the cover members 4 is not engaged.

Therefore, by engaging the locking member 5 with either the case body 2 or the cover member 4, the replacement lead outlet 2a is blocked by the cover member 4 and the cover member 4 is made non-slidable. Since the state can be maintained (engaged state), the closed state of the replacement lead outlet 2a can be maintained more reliably. Additionally, by moving the locking member 5 in the cross direction, it is possible to easily switch between the above-mentioned engaged state and the non-engaged state in which the cover member 4 is slidable with respect to the case body 2.

In some embodiments, the locking member 5 is not engaged with the other (locking member 5) of the case body 2 or the cover member 4 in the above-described intersecting direction (the first direction in the embodiment shown). It has a convex portion 5a that protrudes in a direction from the case body 2 or the cover member 4 (the side with which the locking member 5 is engaged). Additionally, one of the case body 2 or the cover member 4 (the side with which the locking member 5 engages) has an engaging groove 4a into which the convex portion 5a can engage. In the engaged state of the locking member 5, the convex portion 5a is engaged with the engaging groove 4a, and in the non-engaged state of the locking member 5, the convex portion 5a is engaged with the engaging groove 4a. It is not engaged. Additionally, in the above engaged state, the convex portion 5a may be fitted into the engaging groove 4a with a slight gap.

In the exemplary embodiment shown in FIGS. 1 to 3 and FIGS. 4 to 13, the locking member 5 is connected to the cover member 4 from the case body 2 in the above-described intersecting direction (direction along the first direction). It has a convex portion 5a protruding in a direction toward ). Additionally, the cover member 4 has an engaging groove 4a into which the convex portion 5a of the locking member 5 can engage.

In the exemplary embodiment shown in FIGS. 1 to 3, the locking member 5 including the convex portion 5a is supported on the case body 2 so as to be movable along grooves 2b extending in the intersecting direction. It is done. Additionally, the cover member 4 is formed with an engaging groove 4a that is recessed from the surface of the cover member 4 and extends in the intersecting direction. The convex portion 5a of the locking member 5 may engage the engaging groove 4a provided on the cover member 4.

In the exemplary embodiments shown in FIGS. 4 to 13, the case body 2 has a back wall portion ( 2g) and a dorsal wall portion 2f, and a pair of side wall portions 2r and 2s connecting the dorsal wall portion 2g and the dorsal wall portion 2f. In addition, the locking member 5 has a base portion 5b facing the back wall portion 2g of the case body 2 and a pair of side wall portions 2r and 2s respectively facing the case body 2. It includes a pair of side plate portions 5d and 5c. Of the pair of side plate portions 5d and 5c of the locking member 5, the side plate portion 5d is aligned with the base portion 5b in the direction from the bottom portion 2c of the case body 2 toward the replacement core outlet 2a. ) includes a convex portion 5a protruding from the.

Moreover, in the exemplary embodiment shown in FIGS. 4 to 13, the cover member 4 includes an opening cover portion 4d capable of covering the replacement core outlet 2a of the case main body 2, and the case main body ( It includes a back cover portion 4e facing the back wall portion 2f of 2). And, the engaging groove 4a is at least partially formed by the first side 4i of the protrusion 4h protruding from the surface opposing the back wall 2f (case body 2) of the back cover portion 4e. is formed by The first side 4i is a surface extending along the first direction. More specifically, the engaging groove 4a is formed at least partially by the above-described first side 4i and the inner wall surface of the side wall portion 4j of the cover member 4.

That is, the convex portion 5a, which is a part of the side plate portion 5d of the locking member 5, is connected to the first side 4i of the protruding portion 4h of the case body 2 and the inner wall surface of the side wall portion 4j. It can be engaged with the engaging groove (4a) formed by.

According to the above-described embodiment, the locking member 5 is provided with a convex portion 5a, and the case body 2 or the cover member 4 (cover member 4 in the illustrated embodiment) is provided with a locking member ( An engaging groove 4a that can engage with the convex portion 5a of 5) is provided. Accordingly, by moving the locking member 5 in the cross direction, the convex portion 5a of the locking member 5 is brought into engagement with the engaging groove 4a of the case body 2 or the cover member 4, or The engagement of the portion 5a with the engagement groove 4a can be released.

4 to 13, the case body 2 is fitted into the locking member 5, and the cover member 4 is positioned at a second angle with respect to the case body 2 and the locking member 5. It is possible to move in the direction of the slide following the direction.

In addition, as shown in FIGS. 7, 9, and 11, when the case body 2 is assembled by fitting into the locking member 5, the case body 2 is pressed against the locking member 5. It is possible to slide along the longitudinal direction of the main body (2). In addition, the position of the locking member 5 in the longitudinal direction of the case body 2 is determined by the convex portions 2t, 2u, 2v, and 2w of the case body 2 that protrude in the width direction toward the locking member 5. And, the convex portions 5i and 5j of the locking member 5 protruding in the width direction toward the case body 2 are regulated by engaging.

That is, the lower surface of the convex portions 2t and 2v of the case body 2 (the surface on the bottom portion 2c side in the longitudinal direction of the case body 2), the convex portion 5i of the locking member 5, The upper surface of 5j) (the surface on the side of the replacement core outlet 2a in the longitudinal direction of the case body 2) contacts, causing the locking member 5 to be pressed against the case body 2 in the longitudinal direction. The position of the replacement lead outlet (2a) is regulated. In addition, the upper surface of the convex portions 2u and 2w of the case body 2 (the surface on the side of the replacement core outlet 2a in the longitudinal direction of the case main body 2) and the convex portion 5i of the locking member 5 , 5j) (the surface on the bottom 2c side in the longitudinal direction of the case body 2) contacts, thereby causing the locking member 5 to be at its extreme position with respect to the case body 2 in the longitudinal direction. The position on the bottom 2c side is regulated.

Additionally, the convex portions 5i and 5j of the locking member 5 are designed to move the recessed portions 2z and 2m provided on the side wall portions 2r and 2s of the case body 2, respectively. The concave portion 2z is provided in the area between the convex portions 2t and 2u in the longitudinal direction of the case body 2, and the concave portion 2m is provided at the convex portion 2v in the longitudinal direction of the case body 2. It is provided in the area between and 2w).

Accordingly, in a state where the case body 2 is fitted into the locking member 5, the case body 2 and the locking member 5 are integrally movable. In addition, the case body 2 is formed by engaging the convex portion 5i and the concave portion 2z on both sides of the case body 2 and the locking member 5, and the convex portion 5j and the concave portion ( By engaging 2m), movement with the locking member 5 is possible, but it is integrated, and disassembly/disassembly is prevented.

In the above-described embodiment, since the case body 2 is fitted into the locking member 5, the cover member 4 can be easily held against the case body 2 and the locking member 5 by, for example, operating with one hand. You can slide it easily.

Furthermore, in the illustrated embodiment, the back wall portion 2f of the case body 2 and the plate-shaped back cover portion 4e of the cover member 4 are opposed to each other, so that the case body 2 is connected to the back cover portion. By following (4e), the cover member 4 can be slid smoothly relative to the case body 2 (and the locking member 5).

Furthermore, in the illustrated embodiment, a fitting projection 2h is formed on the side wall portion 2s of the case body 2, and protrudes in the second direction toward the side plate portion 5c of the locking member 5, A fitting projection 5f is formed on the side plate portion 5c of the member 5, which protrudes in the second direction toward the side wall portion 2s of the case body 2. In the engaged state of the locking member 5, the engaging projections 2h and 5f are engaged. Thereby, in a state where the replacement core case 1 is not opened or closed (i.e., in a state where no force is applied to move the lock member 5 or the cover member 4), the lock member 5 is It becomes easier to maintain engagement.

In some embodiments, for example, as shown in FIGS. 4 to 13, the replacement core case 1 is one of the case body 2 or the cover member 4 (in the examples shown in FIGS. 4 to 13). A pivot convex portion 2d provided on the case body 2, and the other of the case body 2 or the cover member 4 (cover member 4 in the examples shown in FIGS. 4 to 13) and has a pivot concave portion 4c with which the pivot convex portion 2d engages. And the cover member 4 is movable with respect to the case body 2 and the locking member 5 so as to rotate around the pivot convex portion 2d and the pivot concave portion 4c. Moreover, in the exemplary embodiment shown in FIGS. 4 to 13, the pivot recessed portion 4c is a hole provided in the cover member 4.

In the above-described embodiment, the cover member 4 is movable with respect to the case body 2 and the locking member 5 so as to rotate around the pivot convex portion 2d and the pivot concave portion 4c. , for example, by operating with one hand, the cover member 4 can be easily slid relative to the case body 2 and the locking member 5.

In addition, in this embodiment, the sliding direction of the cover member 4 with respect to the case body 2 is the rotation direction of the cover member 4 centered on the pivot convex portion 2d and the pivot concave portion 4c. In the same way, the cover member 4 moves on an arc-shaped orbit. Moreover, this slide direction (rotation direction) is a direction along the second direction (direction along the width direction of the case main body 2).

In some embodiments, for example, as shown in FIGS. 1 to 13, one side of the case body 2 or the cover member 4 with which the locking member 5 is engaged is the locking member 5 in a non-engaged state. ) and a movement regulating portion 4b for regulating movement in the direction from the other of the case body 2 or the cover member 4 in the crossing direction (direction along the second direction) in the direction toward said one.

In the exemplary embodiment shown in FIGS. 1 to 13, the cover member 4 includes the above-described movement regulating portion 4b, and the movement regulating portion 4b includes the locking member 5 in the non-engaged state. ) is configured to regulate movement from the case body 2 toward the cover member 4 in the crossing direction (direction along the second direction).

In the above-described embodiment, the movement regulating portion 4b is provided for regulating the movement of the locking member 5 in the cross direction in the non-engaged state, so that the locking member 5 in the non-engaged state moves in the cross direction. It can prevent movement. Therefore, it is possible to prevent the slide movement of the cover member 4 relative to the case body 2 from being inhibited by unintentional movement of the locking member 5 in the cross direction.

In the exemplary embodiment shown in FIGS. 1 to 13, the movement regulating portion 4b extends along the slide direction and is positioned at the tip surface 5h of the convex portion 5a of the locking member 5 in the non-engaged state. ) has a contact surface 4l that can be contacted.

In this case, the distal end surface 5h of the convex portion 5a of the locking member 5 contacts the contact surface 4l of the movement regulating portion 4b, thereby causing the locking member 5 to cross in the non-engaged state. Movement in direction (direction along the second direction) is regulated.

In the exemplary embodiment shown in FIGS. 4 to 13, the contact surface 4l of the movement regulating portion 4b includes the second side surface 4k of the protruding portion 4h of the back cover portion 4e.

According to the above-described embodiment, there is a simple configuration in which the cover member 4 is provided with the above-described protrusion 4h, and the engagement groove 4a can be formed using the first side 4i of the protrusion 4h. In addition, the contact surface 4l of the movement regulating portion 4b can be formed using the second side 4k of the protruding portion 4h.

In the exemplary embodiment shown in FIGS. 4 to 13, the above-described second side surface 4k has an arc shape. Therefore, in the non-engaged state, the intersection direction (second direction) of the locking member 5 rotating with the case body 2 around the pivot convex portion 2d and the pivot concave portion 4c with respect to the cover member 4 movement along the direction) can be appropriately regulated.

In some embodiments, for example, as shown in FIG. 12, the replacement core case 1 protrudes from the inner wall surface 2q of the case body 2 and extends in a first direction (the longitudinal direction of the case body 2). ) is provided with a rib (2p) extending along.

According to the above-described embodiment, a rib ( Since 2p) is provided, the plurality of replacement leads 3 for mechanical pencils accommodated in the case body 2 can be divided into groups of fewer replacement leads 3 by dividing them by the ribs 2p. Therefore, as shown in Fig. 13, it becomes easy to take out a small number of replacement cores 3 when the replacement core extraction port 2a of the case body 2 is open.

Additionally, by appropriately setting the installation position of the ribs 2p (for example, the distance between the side wall portion 2s and the ribs 2p), the number of replacement cores 3 to be removed can be adjusted. For example, by setting the distance between the side wall portion 2s and the rib 2p to more than 1 time but less than 2 times the thickness of one replacement core 3, it becomes easy to remove only one replacement core.

In some embodiments, for example, as shown in FIGS. 1 to 13, the replacement lead case 1 for a mechanical pencil includes a component including a case body 2 and a component including a cover member 4. , consists of only three parts, including the part containing the locking member 5.

In this case, since the above-described replacement lead case for a mechanical pencil is constructed with a small number of parts, it is possible to more reliably maintain the closed state of the replacement lead outlet while suppressing an increase in manufacturing cost, and also the locking member (5) ) It is possible to realize a configuration in which it is possible to easily switch between the engaged state and the non-engaged state.

Hereinafter, a replacement lead case for a mechanical pencil according to several embodiments will be described in more detail.

A replacement lead case for a mechanical pencil according to some embodiments of the present invention includes at least a cylindrical case body with a bottom that accommodates a replacement lead for a mechanical pencil, and a cover member capable of closing the replacement lead outlet of the case body. At least one of the cover member or the case body is manipulated to intrude into the engagement groove (key hole portion) of the other side and is displaced to a collision position to regulate the relative slide of the case body and the cover member, thereby regulating the closed state of the case body. Forms a locking mechanism that maintains. Additionally, when the replacement lead outlet is opened and the replacement lead for the mechanical pencil is exposed to the outside, the locking mechanism is provided with a locking mechanism fixing means that causes the locking mechanism to be in an unlocked state.

The shape of the case body and the cover member is preferably a flat box shape so that it can be easily caught by a finger in a situation where the opening and closing operation is performed by sliding both, but the advantages of the present invention such as convenience of operation and ease of manufacturing are achieved. To the extent that it does not cause damage, it may be cylindrical, elliptical-cylindrical, triangular box-shaped in cross-section, quadrangular-box-shaped in cross-section, or polygonal box-shaped in cross-section.

The slide according to the opening and closing operation of the case body and the cover member has a configuration in which the case body and the cover member move in linear parallel movement, a meandering movement, or a fan shape with the pivot joint as the center of rotation, or a rotation such as a double barrel. Screw movement may also be sufficient.

In the case where the pivot joint is slid in a fan shape with the rotation center, the pivot joint that serves as a point for rotating the case body and the cover member in the fan shape is formed with a convex portion on one of the case body and the cover member and a convex portion on the other side. A recess or hole into which the part is inserted can be formed, or the eyelet member can be inserted into the recess or hole formed in both.

In the case body, a replacement lead outlet is formed at a position where the distance from the inner bottom of the case body is shorter than the total length of the accommodated mechanical pencil replacement lead, and when the replacement lead outlet is opened, the end of the mechanical pencil replacement lead is Make sure it is exposed to the outside.

The shape of the opening edge of the replacement core outlet can be any appropriate shape, such as rectangular, circular, oval, triangular, square, or other polygon, so it does not matter if it has a shape that is different from the outer shape of the case body.

The cover member has a back cover portion (slide back plate portion) having a flat inner surface between the case main body and a slide surface on which the opening cover portion (cover portion) covering the replacement core outlet relatively slides.

The side of the case main body opposite the back cover portion of this cover member is formed as a slideable back wall portion (equoplanar portion). The shape is a flat surface, but the case body and the cover member can slide relatively. For example, it may be a flat surface with corrugated or lattice-shaped irregularities by forming a gap between the two, and the shape of each may be straight or flat. It may be an uneven relationship that follows a fan-shaped rotating orbit. However, it can be said that having smooth surfaces is advantageous in terms of manufacturing and operation.

By forming a protrusion on one side of the cover member and the case body and forming a fitting portion for the protrusion on the other side, the cover member can be used as a mechanism to maintain the replacement core outlet in a closed state. Additionally, regardless of the fit of the unevenness, the operating position of the cover member can be maintained by adjusting the frictional resistance of the opposing sliding surfaces.

Alternatively, the relative motion can be controlled between the cover member and the case body using component configurations such as elastic members, pistons, and dampers.

A locking member is placed on the case body so as to slide along the case body, and a part of the locking member is inserted into and removed from the engaging groove (key hole portion) of the cover member, so that it can be used for mechanical pencils in the locked and non-locked states. The overall size of the replacement core case can be changed, and the locked state and/or non-locked state can be easily confirmed with the naked eye.

Additionally, by operations such as sliding the locking member relative to the case body, a portion of the case body may be exposed and a display indicating the locked state may appear. Additionally, the display portion may be a letter or a logo, or may be exposed by cutting a part of the exposed surface or providing a window hole to expose the contents, a replacement lead for a mechanical pencil, and is not particularly limited as long as the changed state can be recognized. Additionally, the display content may be provided with irregularities directly on the part, the roughness of the surface of the display portion may be changed, or colored characters or logos may be displayed by transfer or painting, etc., and this can be done as appropriate.

The replacement lead case for a mechanical pencil according to several embodiments of the present invention is provided with a locking mechanism fixing means, thereby preventing erroneous locking operation when the replacement lead outlet is opened and the replacement lead for a mechanical pencil is exposed to the outside. (Prohibiting the operation of the locking member in the non-locked state).

In addition, prohibiting the driving of the locking member in this non-locked state means that the locking member prevents the operation to place the cover member and the case body in a closed state (a state in which the replacement lead for a mechanical pencil is not exposed to the outside). By preventing this, damage caused by collision of unnecessary members can be suppressed.

The locking mechanism fixing means forms a movement regulating portion (anti-locking wall) on the cover member to prevent the locking member from colliding with the movement regulating portion (anti-locking wall) and driving it as a locking mechanism, or to prevent the locking member from being driven as a locking mechanism by colliding with the movement regulating portion (anti-locking wall). In conjunction with the slide action, the force can be used to rotate the rack and pinion or worm gear, or the link mechanism can be used to maintain the non-locked state of the locking member, such as the legs of a folding table, to prevent erroneous locking operation ( Any mechanism that can prohibit the driving of the locking member in an unlocked state is sufficient.

In order to make the formation range of the movement regulating portion (locking prevention wall) cover the entire range where the locking mechanism is located, the movement range of one of the cover members or the case body where the locking member is disposed may be limited with respect to the other side. there is. For example, it is possible to have barriers on both sides that regulate the maximum opening amount of the cover member or case body.

The materials that make up the case body, cover member, and locking member are acrylonitrile styrene copolymer resin (AS resin), acrylonitrile butadiene styrene copolymer resin (ABS resin), polycarbonate resin (PC resin), and polystyrene resin ( Various synthetic resins such as PS resin), polyoxymethylene (polyacetal) resin (POM resin), polybutylene terephthalate resin (PBT resin), polypropylene resin (PP resin), and polyethylene terephthalate resin (PET resin). You can use it.

Additionally, when the case body, cover member, and locking member are made of the same material, sliding defects may occur due to sticking due to the high affinity between the materials, so they must be made of different materials or a silicone oil may be applied between them. , it is desirable to apply a lubricant such as grease. Additionally, the case body is preferably made of a highly transparent resin such as acrylonitrile styrene copolymer resin (AS resin) so that the replacement lead for the mechanical pencil it accommodates is visible.

Additionally, transparent, semi-transparent, or colored colors may be used, and can be appropriately selected depending on the intended use. Additionally, metal may be used to create a sense of luxury, and the material is not particularly limited. Alternatively, the exterior surface may be a glossy surface or a wrinkled surface, or may be decorated with printing or other decorations.

A replacement lead case for a mechanical pencil according to an embodiment shown in FIGS. 1 to 3 will be described. In addition, since FIGS. 1 to 3 only show the operation of the replacement lead case 1 for a mechanical pencil, mechanisms and fixing structures required for the slide are omitted.

Hereinafter, the replacement core outlet 2a side of the case body 2 is referred to as the upward direction, the bottom side as the bottom direction, the front side as the front direction, the back side as the back direction, and the side side as the horizontal direction.

As shown in FIG. 1, the replacement lead case 1 for a mechanical pencil includes a cylindrical case body 2 with a box-shaped bottom that accommodates the replacement lead for a mechanical pencil, and a replacement lead in the case body 2. It has a box-shaped cover member 4 that can close the outlet 2a and a convex-shaped locking member 5 that performs a locking operation.

The locking member 5 is capable of sliding upward and downward along the groove 2b of the case body 2. Additionally, the case body 2 is capable of sliding in the horizontal direction relative to the cover member 4, and the replacement core outlet of the case body 2 is exposed to the outside by the slide.

Shown in FIG. 1 is a state in which the convex portion 5a of the locking member 5 is fitted (engaged state) into the engaging groove (key hole portion) 4a of the cover member 4, and the case body 2 is It is fixed to the convex portion 5a of the locking member 5 and is in a state in which it cannot slide in the horizontal direction relative to the cover member 4 (locked state).

As shown in FIG. 2, the locking member 5 is slid toward the bottom along the groove 2b of the case body 2, and the convex portion 5a of the locking member 5 is positioned on the cover member 4. By pulling out from the engaging groove (key hole portion) 4a, the locked state is released (non-engaged state), and the case body 2 and the cover member 4 can relatively slide in the horizontal direction, and the case body 2 The replacement lead outlet 2a of is in an open state, so that the replacement lead 3 for a mechanical pencil is exposed to the outside, and the replacement lead 3 for a mechanical pencil can be taken out (see FIG. 3). At this time, since the movement regulating portion (locking prevention wall) 4b of the cover member 4 is located above the convex portion 5a of the locking member 5, the locking member 5 is restricted from upward movement. Since it cannot be moved, erroneous locking operations can be prevented (maintaining the non-locked state).

A replacement lead case for a mechanical pencil according to an embodiment shown in FIGS. 4 to 11 will be described. Hereinafter, the replacement core outlet 2a side of the case body 2 is referred to as the upward direction, the bottom portion 2c side is referred to as the bottom direction, the front side is referred to as the front direction, and the back side is referred to as the back direction.

As shown in FIG. 4, which is an exploded perspective view of the embodiment, and FIG. 5, which is an exploded perspective view seen from the back of FIG. 4, the replacement lead case 1 for a mechanical pencil is a flat box that accommodates the replacement lead 3 for a mechanical pencil. It has a cylindrical case body 2 with a molded bottom, a flat box-shaped cover member 4, and a locking member 5 for locking operation.

A pivot convex portion 2d of the case body 2 and a pivot concave portion (pivot engaging hole) 4c of the cover member 4 are formed in the bottom portion of the replacement lead case 1 for a mechanical pencil, respectively. By inserting and fitting the pivot convex portion 2d into the pivot concave portion (pivot engaging hole) 4c to form a pivot engaging portion, the case body 2 and the cover member 4 are relatively fan-shaped with the portion as the center. It was possible to meet with.

In addition, the locking member 5 has a flat base portion 5b, side plates (side wall portions) 5c, 5d, and bottom wall portions 5e, and side plates (side wall portions) 5c, 5e on both sides. By covering and fitting the outside of the case body 2 with 5d), it is possible to slide relatively upward and downward with respect to the case body 2.

A groove 2x along the width direction of the case body 2 is provided in the bottom portion 2c of the case body 2. Due to this, when inserting the pivot convex portion 2d of the case body 2 into the pivot concave portion 4c of the cover member 4, the case body 2 can be bent, and the case body 2 Damage can be suppressed.

Additionally, the pivot convex portion 2d of the case body 2 includes an inclined cut portion 2dd in which the thickness of the pivot convex portion 2d changes in a tapered shape. Additionally, the cover member 4 is provided with a groove 4m recessed from the inner surface of the cover member 4 around the pivot concave portion 4c. Therefore, the pivot convex portion 2d of the case body 2 can be smoothly inserted into the pivot concave portion 4c of the cover member 4.

The case body 2 has a replacement lead outlet ( 2a), so that the end of the replacement lead 3 for a mechanical pencil is exposed to the outside in the open state.

The length of the end portion of the replacement lead 3 for a mechanical pencil exposed to the outside can be adjusted by adjusting the distance of the replacement lead outlet 2a from the inner bottom 2e of the case body 2, but the required number can be determined visually. The length of the externally exposed end of the replacement lead for a mechanical pencil (3), which is required to be held with a fingertip, is preferably 1.8 mm or more and 12 mm or less.

By arranging the replacement lead outlet (2a) and the inner bottom portion (2e) in the same shape and in parallel positions, the length of the end of the replacement lead (3) for a mechanical pencil accommodated in the case body (2) exposed to the outside can be kept constant. However, to make it easier to take out only one or a few replacement lead 3 for mechanical pencils, the inner bottom portion 2e may be arranged at an angle or other non-parallel to the replacement lead outlet 2a.

When a large number (20 or more) of replacement pencil lead 3 for built-in mechanical pencils are stored in the case body 2 by forming a rib in the case body 2, several of them can be stored in other parts of the container. It can be placed in an area, and the number of replacement lead 3 for mechanical pencils exposed to the outside can be set to a specific small number (1 to 5).

The cover member 4 includes an opening cover portion (cover portion) 4d that covers the replacement core outlet 2a, and a pivot recess (pivot engaging hole) 4c that serves as a pivot engaging portion with respect to the case body 2. The inner surface of the portion between the two parts is a flat back cover portion (slide back plate portion) 4e that faces the back wall portion (equal flat portion) 2f of the case body 2.

6 and 7 show a state in which the relative movements of the case body 2 and the cover member 4 are locked.

The locking member 5 is arranged to cover the ventral wall (abdomen) 2g on the opposite side to the dorsal wall (equal plane portion) 2f of the case body 2, and slides with respect to the cover member 4, You can switch between the locked state and the non-locked state, which will be described later.

A state in which the locking member 5 is slid relative to the cover member 4 and the convex portion 5a of the locking member 5 is inserted into the engaging groove (keyhole portion) 4a of the cover member 4 (engaged state) ), the case body 2 and the cover member 4 become relatively motionless. At this time, the locking state can be maintained by engaging the engaging protrusion 2h formed on the case body 2 and the engaging protrusion 5f formed on the locking member 5.

8 and 9 show the case body 2 and the cover member 4 in an unlocked state.

By sliding the locking member 5 in the bottom direction with respect to the case body 2 to pull out the convex portion 5a of the locking member 5 from the engaging groove (keyhole portion) 4a of the cover member 4, The case body 2 and the cover member 4 are in a relatively movable state (unlocked state). By moving the locking member 5 arranged to cover the dorsal wall portion (abdomen) 2g opposite to the dorsal wall portion (equoplanar portion) 2f of the case body 2 in the bottom direction with respect to the case body 2. , Because the overall length of the replacement lead case (1) for a mechanical pencil is longer, the unlocked state can be confirmed with the naked eye. In the unlocked state, the unlocked state can be maintained by engaging the engaging projection 2h formed on the case body 2 and the engaging projection 5f formed on the locking member 5.

In addition, when the locking member 5 described above is slid in the bottom direction with respect to the case body 2 in order to be in an unlocked state, the upper side of the ventral wall (abdomen) 2g of the case body 2 is exposed, A display portion 2i indicating the non-locked state is formed on the exposed dorsal wall portion (abdomen) 2g to indicate the non-locked state.

In the locked state, the core protrusion prevention wall 5g protrudes upward from the replacement core outlet 2a, so by the unlocking operation, the locking member 5 is slid toward the bottom with respect to the case body 2. In the non-locked state, the core protrusion prevention wall 5g formed on the locking member 5 is also linked to approximately the same position as the ceiling portion 2j of the case body 2, or to a position lower than the ceiling portion 2j. It goes down.

Additionally, in the locked state, the core protrusion prevention wall 5g protrudes upward from the replacement lead outlet 2a, so it functions as a shutter to prevent foreign matter from entering the hole on the side of the replacement lead case 1 for a mechanical pencil. In the non-locked state, when the replacement lead 3 for a mechanical pencil is directly held with a finger and taken out from the replacement lead outlet 2a in the open state, the replacement lead 3 for a mechanical pencil is exposed to the core protrusion prevention wall 5g. ), so as not to impede the extraction of the replacement lead 3 for a mechanical pencil. Additionally, the core protrusion prevention wall 5g may be formed on the case main body 2 side.

10 and 11 show a state in which the replacement core outlet 2a of the case body 2 is opened.

By rotating the case body 2 and the cover member 4 relatively into a fan shape, the replacement lead outlet 2a of the case body 2 is opened, and the replacement lead 3 for a mechanical pencil is exposed to the outside. This allows the replacement lead (3) for a mechanical pencil to be taken out. At this time, since the movement regulating portion (locking prevention wall) 4b of the cover member 4 is disposed above the locking member 5, the locking member 5 is restricted from moving upward and is in an unlocked state. to prevent erroneous operation of the locking member (5).

The movement regulating portion (locking prevention wall) 4b is formed in a range that regulates the upward movement of the locking member 5 during the opening operation of the case body 2.

Additionally, when the case body 2 and the cover member 4 are rotated relatively into a fan shape, the opening regulation wall 2k of the case body 2 and the opening regulation rib 4f of the cover member 4 come into contact. By doing so, the movement range of the convex portion 5a of the locking member 5 moving together with the case body 2 is adjusted to that of the movement regulating portion (locking prevention wall) 4b disposed so as to be located above the convex portion 5a. Since it can be regulated within the forming range, the locking member 5 cannot move upward, and erroneous locking operations can be prevented more reliably (maintaining the non-locked state). As shown in Fig. 5, the opening regulating wall 2k may be formed by the inner surface of the concave portion 2o recessed from the surface of the back wall portion 2f.

After replenishing the mechanical pencil replacement lead (3), the case body (2) and the cover member (4) are relatively rotated in a fan shape to close the replacement lead outlet (2a), and the locking member (5) is closed. By performing an operation of sliding upward with respect to the case body 2, the replacement lead outlet 2a is again brought into a locked state in which it remains closed. At this time, by sliding the locking member 5 upward with respect to the case body 2, the entire length of the replacement lead case 1 for a mechanical pencil returns to its original state, so the locking state can be easily confirmed with the naked eye.

As shown in Fig. 4, the dorsal wall portion 2g of the case main body 2 has a step portion 2l at the end on the replacement core outlet 2a side, which has a surface that is more concave than the surface of the dorsal wall portion 2g. It's okay to have it. In this case, even when the opening cover portion 4d of the cover member 4 is deformed after molding and becomes narrow in width, it is easy to maintain the clearance between the opening cover portion 4d and the case body 2. Therefore, it becomes easy to slide the cover member 4 smoothly relative to the case body 2.

As shown in Fig. 5, the back wall portion 2f of the case main body 2 may have a concave portion 2n sunken from the surface of the back wall portion 2f. The concave portion 2n may extend in the longitudinal direction of the case body 2 over a range of 1/2 or more of the length of the case body 2.

When the cover member 4 is repeatedly slid against the case body 2, friction occurs on the surface of the back wall portion 2f of the case body 2 and the inner surface of the back cover portion 4e of the cover member 4. Damage may occur. In this regard, by providing the above-described concave portion 2n, the contact area between the back wall portion 2f and the back side cover portion 4e can be reduced, and thus the occurrence of the friction damage described above can be suppressed.

As shown in Fig. 4, the case main body 2 may have a relief portion 2y provided to be recessed from the ventral wall portion 2g or the back wall portion 2f. The spare portion 2y may be provided in a position different from the portion that accommodates the replacement core 3 in the longitudinal direction of the case body 2. In the example shown in Fig. 4, the allowance portion 2y is provided in a position closer to the bottom portion 2c than the inner bottom portion 2e (see Fig. 7) in the longitudinal direction of the case body 2. By providing such an allowance 2y, when molding the case body 2, the thickness of the material such as resin is likely to become uniform and shrinkage can be easily prevented.

As shown in Fig. 5, the base portion 5b of the locking member 5 may have a step portion 5k having a recessed surface from the inner surface of the base portion 5b. By providing the step portion 5k, the thickness of the base portion 5b of the locking member 5 becomes thinner, making it easier to increase the thickness of the case body 2. As a result, the cross-sectional area of the accommodating portion of the replacement core 3 of the case body 2 can be increased, making it easier to insert the replacement core 3 into the case body 2. For this reason, when producing the replacement core case 1, the occurrence of defects when the replacement core 3 is inserted into the case main body 2 can be suppressed.

The contents described in each of the above embodiments are understood as follows, for example.

(1) A replacement lead case (1) for a mechanical pencil according to at least one embodiment of the present invention,

A case body (2) to accommodate a replacement lead (3) for a mechanical pencil,

a cover member (4) capable of opening and closing the replacement core outlet (2a) of the case body by sliding relative to the case body;

An engaged state in which one of the case body or the cover member is engaged by moving relative to the case body and the cover member in a cross direction crossing the slide direction of the cover member with respect to the case body, and the case body or the cover member; A locking member (5) configured to switch from a non-engaged state to one of the cover members.

Equipped with

In the engaged state, the cover member is configured to be maintained in a state that blocks the replacement core outlet and cannot slide relative to the case body.

According to the configuration of (1) above, the replacement lead case for a mechanical pencil includes a cover member that can open and close the replacement lead outlet of the case body by sliding relative to the case body, and a cover member that is engaged with one of the case body or the cover member. It is provided with a locking member that can be used. And, by moving the locking members in the cross direction, it is possible to switch between an engaged state in which the locking member is engaged with one of the case body or the cover member and a non-engaged state in which the locking member is not engaged with one of the case body or the cover member. .

Therefore, by engaging the locking member with either the case body or the cover member, the replacement lead outlet is blocked by the cover member and the state in which the cover member cannot slide can be maintained (engaged state), so that the replacement core can be replaced. The core outlet can be kept closed more reliably. Additionally, by moving the locking members in the intersecting direction, it is possible to easily switch between the above-mentioned engaged state and the non-engaged state in which the cover member can slide with respect to the case body.

(2) In some embodiments, in the configuration of (1) above,

One of the case body or the cover member includes a movement regulating portion 4b for regulating movement of the locking member in the cross direction in the non-engaged state.

According to the configuration of (2) above, since the movement regulating portion is provided to regulate the movement of the locking member in the cross direction in the non-engaged state, it is possible to prevent the locking member in the non-engaged state from moving in the cross direction. . Therefore, it is possible to prevent the slide movement of the cover member with respect to the case body from being inhibited by unintentional movement of the locking member in the cross direction.

(3) In some embodiments, in the configuration of (1) or (2) above,

The locking member has a convex portion (5a) protruding from the other of the case body or the cover member in the crossing direction in a direction toward the one side,

One of the case body or the cover member has an engaging groove (4a) into which the convex portion can be engaged,

The engaged state is a state in which the convex portion is engaged with the engaging groove, and the non-engaged state is a state in which the convex portion is not engaged with the engaging groove. The engagement state may be a state in which the convex portion is fitted into the engagement groove with a slight gap.

According to the configuration of (3) above, the locking member is provided with a convex portion, and the case body or cover member is provided with an engaging groove that can engage with the convex portion of the locking member. Accordingly, by moving the locking members in the intersecting direction, the convex portion of the locking member can be engaged with the engaging groove of the case body or the cover member, or the engagement of the convex portion with the engaging groove can be released. As a result, as explained in (1) above, the replacement lead outlet can be maintained in a closed state more reliably, and the engaged and disengaged states of the locking member can be easily switched.

(4) In some embodiments, in the configuration of (3) above,

One of the case body or the cover member includes a movement regulating portion 4b for regulating movement of the locking member in the cross direction in the non-engaged state,

The movement regulating portion extends along the slide direction and includes a contact surface 4l with which the distal end surface 5h of the convex portion in the non-engaged state can contact.

According to the configuration of (4) above, the movement regulating portion has a surface (contact surface) extending along the slide direction of the cover member with respect to the case body, and the tip surface of the convex portion of the locking member can contact the contact surface. Therefore, by contacting the contact surface with the convex portion, it is possible to prevent movement of the locking member in the cross direction in the non-engaged state, and the movement of the cover member in the sliding direction with respect to the case body can be guided by the contact surface.

(5) In some embodiments, in the configuration of (3) or (4) above,

The cover member has the engaging groove into which the convex portion of the locking member can be engaged,

The case body is,

a dorsal wall portion (2g) and a dorsal wall portion (2f) extending between the bottom portion (2c) of the case body and the replacement core outlet, respectively, and opposing each other;

It includes a pair of side wall portions (2r, 2s) connecting the dorsal wall portion and the dorsal wall portion,

The locking member is,

a base portion (5b) opposing the ventral wall portion of the case body;

It includes a pair of side plate portions 5c and 5d respectively facing the pair of side wall portions of the case body,

One (5d) of the pair of side plate portions includes the convex portion that protrudes from the base portion in a direction from the bottom portion toward the replacement core outlet.

According to the configuration in (5) above, it is a simple configuration in which a convex portion protruding from the base portion is provided on the side plate portion of the locking member opposing one of the pair of side wall portions of the case body, as explained in (3) above. , by moving the locking members in the intersecting direction, the convex portion of the locking member can be engaged with the engaging groove of the case body or the cover member, or the engagement of the convex portion with the engaging groove can be released.

(6) In some embodiments, in the configuration of (5) above,

The cover member is,

An opening cover portion (4d) capable of covering the replacement core outlet,

It includes a back cover portion (4e) facing the back wall portion of the case body,

The engaging groove is formed at least in part by the first side 4i of the protrusion 4h protruding from the surface opposite the back wall of the back cover part.

According to the configuration of (6) above, it is a simple structure in which the cover member is provided with a protrusion protruding from the surface of the back cover portion, and an engaging groove can be formed using the first side of the protrusion.

(7) In some embodiments, in the configuration of (6) above,

The cover member includes a movement regulating portion 4b for regulating movement of the locking member in the cross direction in the non-engaged state,

The movement regulating portion extends along the slide direction and has a contact surface (4l) with which the distal end surface (5h) of the convex portion in the non-engaged state can contact,

The contact surface includes a second side 4k of the protrusion of the back cover part.

According to the configuration of (7) above, it is a simple structure in which the above-described protrusion is provided on the cover member, and in addition to forming the engaging groove using the first side of the protrusion, the second side of the protrusion can be used to form the engagement groove. A contact surface of the movement regulating portion can be formed.

(8) In some embodiments, in any of the configurations (1) to (7) above,

The case body is fitted into the locking member,

The cover member is movable in the slide direction with respect to the case body and the locking member.

According to the configuration of (8) above, since the case body is inserted into the locking member, the cover member can be easily slid relative to the case body and the locking member, for example, by operating with one hand.

(9) In some embodiments, in the configuration of (8) above,

The replacement lead case for the mechanical pencil is,

a pivot convex portion (2d) provided on one of the case body or the cover member;

Provided on the other side of the case body or the cover member, a pivot concave portion (4c) with which the pivot convex portion engages,

The cover member is movable relative to the case body and the locking member so as to rotate around the pivot convex portion and the pivot concave portion.

According to the configuration of (9) above, the cover member is movable with respect to the case body and the locking member so as to rotate around the pivot concave portion and the pivot convex portion, so that the cover member can be locked into the case by, for example, operating with one hand. It can be easily slid relative to the main body and locking member.

(10) In some embodiments, in any of the configurations (1) to (9) above,

The case body has the replacement core outlet and a bottom provided at both ends of the case body in a first direction, respectively,

The replacement lead case for the mechanical pencil is,

A rib 2p protrudes from the inner wall surface 2q of the case body and extends along the first direction.

According to the configuration of (10), a rib is provided that protrudes from the inner wall surface of the case body and extends along the first direction (i.e., the direction connecting the replacement lead outlet and the bottom portion), so that a plurality of mechanical pencils accommodated in the case body By dividing the replacement cores by ribs, the replacement cores can be divided into groups of fewer replacement cores. Therefore, when the replacement core extraction port of the case body is open, it becomes easy to take out a small number of replacement cores.

(11) A replacement lead case for a mechanical pencil according to at least one embodiment of the present invention,

At least comprising a cylindrical case body with a bottom for accommodating a replacement lead for a mechanical pencil, and a cover member capable of closing the replacement lead outlet,

The case body has a replacement lead outlet formed at a position where the distance from the inner bottom of the case body to the replacement lead outlet is shorter than the total length of the mechanical pencil replacement lead to be accommodated, so that in the open state, the end of the mechanical pencil replacement lead is exposed to the outside world,

The cover member has a back cover portion (slide back plate portion) with a flat inner surface,

A slideable back wall portion (isoplane portion) is formed on the surface of the case body opposite to the back cover portion (slide back plate portion) of the cover member,

The replacement core outlet can be opened and closed by relatively sliding the outer ventral wall (abdomen) opposite the dorsal wall (flat portion) of the case body and the outer surface of the dorsal cover portion (slide back plate portion) of the cover member. In, a replacement lead case for a mechanical pencil,

At least one of the cover member or the case body is manipulated to enter a position where it enters and collides with the engagement groove (key hole portion) of the other side to regulate the relative slide between the case body and the cover member, and the replacement core outlet is closed. A locking mechanism is formed to maintain the.

(12) In some embodiments, in the configuration of (11) above,

The replacement lead case for the mechanical pencil is,

When the replacement lead outlet is opened and the replacement lead for a mechanical pencil is exposed to the outside, the locking mechanism is provided with a locking mechanism fixing means that maintains the unlocked state.

Although embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments and also includes forms in which modifications are made to the above-described embodiments and forms in which these forms are appropriately combined.

In this specification, expressions expressing relative or absolute arrangement such as “in a certain direction,” “along a certain direction,” “parallel,” “orthogonal,” “center,” “concentric,” or “coaxial,” strictly mean It not only represents such arrangement, but also represents the state of relative displacement with a tolerance or an angle or distance sufficient to obtain the same function.

For example, expressions that indicate that things are in the same state, such as “same,” “same,” and “homogeneous,” not only express strictly the same state, but also state that there is a tolerance, or a difference to the extent that the same function can be obtained. shall also be indicated.

In addition, in this specification, expressions representing shapes such as a square shape or a cylindrical shape not only represent shapes such as a square shape or a cylindrical shape in a geometrically strict sense, but also represent irregularities, chamfers, etc. within the range where the same effect is obtained. The shape included should also be indicated.

Additionally, in this specification, the expressions “to include,” “include,” or “to have” one component are not exclusive expressions that exclude the presence of other components.

1: Replacement lead case for mechanical pencil 2: Case body
2a: Replacement core outlet 2b: Home
2c: bottom part 2d: pivot convex part
2dd: inclined cut part 2e: inner bottom part
2f: Dorsal wall (dorsal plane) 2g: Dorsal wall (abdomen)
2h: Fitting protrusion 2i: Display unit
2j: Ceiling 2k: Opening regulation wall
2l: step 2m: concave part
2n: concave portion 2o: concave portion
2p: rib 2q: inner wall
2r: side wall 2s: side wall
2t: Convex portion 2u: Convex portion
2v: Convex portion 2w: Convex portion
2x: groove 2y: margin
2z: Concave portion 3: Replacement lead for mechanical pencil
4: Cover member 4a: Engagement groove (key hole portion)
4b: Movement control (anti-lock wall)
4c: Pivot concave portion (pivot coupling hole) 4d: Opening cover portion (cover portion)
4e: Back cover portion (slide back plate portion) 4f: Opening regulation rib
4h: protrusion 4i: first side
4j: side wall 4k: second side
4l: contact surface 4m: groove
5: Locking member 5a: Convex portion
5b: Base portion 5c: Side plate portion (side wall portion)
5d: side plate (side wall) 5e: bottom wall
5f: Fitting protrusion 5g: Core protrusion prevention wall
5h: tip surface 5i: convex portion
5j: Convex portion 5k: Concave portion

Claims (10)

A case body to accommodate a replacement lead for a mechanical pencil,
a cover member capable of opening and closing a replacement core outlet of the case body by sliding relative to the case body;
An engaged state in which one of the case body or the cover member is engaged by moving relative to the case body and the cover member in a cross direction crossing the slide direction of the cover member with respect to the case body, and the case body or the cover member; A locking member configured to switch from a non-engaged state to one of the cover members.
Equipped with
A replacement lead case for a mechanical pencil, wherein, in the engaged state, the cover member is maintained in a state that blocks the replacement lead outlet and cannot slide relative to the case body. According to paragraph 1,
A replacement lead case for a mechanical pencil, wherein one of the case body or the cover member includes a movement regulating portion for regulating movement of the locking member in the cross direction in the non-engaged state. According to claim 1 or 2,
The locking member has a convex portion that protrudes from the other of the case body or the cover member in the crossing direction in a direction toward the one side,
The one of the case body or the cover member has an engagement groove into which the convex portion can be engaged,
The engagement state is a state in which the convex portion is engaged with the engagement groove, and the non-engagement state is a state in which the convex portion is not engaged with the engagement groove. According to paragraph 3,
One of the case body or the cover member includes a movement regulating portion for regulating movement of the locking member in the cross direction in the non-engaged state,
The replacement lead case for a mechanical pencil, wherein the movement regulating portion extends along the slide direction and includes a contact surface that can be brought into contact with the tip surface of the convex portion in the non-engaged state. According to clause 3 or 4,
The cover member has the engaging groove into which the convex portion of the locking member can be engaged,
The case body is,
a dorsal wall portion and a dorsal wall portion, respectively extending between the bottom portion of the case body and the replacement core outlet and opposing each other;
A pair of side wall portions connecting the dorsal wall portion and the dorsal wall portion.
Including,
The locking member is,
a base portion opposing the ventral wall portion of the case body;
A pair of side plate portions respectively opposing the pair of side wall portions of the case body
Including,
A replacement lead case for a mechanical pencil, wherein one of the pair of side plate portions includes the convex portion protruding from the base portion in a direction from the bottom toward the replacement lead outlet. According to clause 5,
The cover member is,
an opening cover portion capable of covering the replacement core outlet;
A back cover portion opposing the back wall portion of the case body.
Including,
The replacement lead case for a mechanical pencil, wherein the engaging groove is formed at least in part by a first side of a protrusion protruding from a surface opposite to the back wall of the back cover part. According to clause 6,
The cover member includes a movement regulating portion for regulating movement of the locking member in the cross direction in the non-engaged state,
The movement regulating portion extends along the slide direction and has a contact surface against which the tip surface of the convex portion in the non-engaged state can contact,
The replacement lead case for a mechanical pencil, wherein the contact surface includes a second side of the protrusion of the back cover part. According to any one of claims 1 to 7,
The case body is fitted into the locking member,
The replacement lead case for a mechanical pencil, wherein the cover member is movable in the slide direction with respect to the case body and the locking member. According to clause 8,
a pivot convex portion provided on one of the case body or the cover member;
A pivot concave portion provided on the other side of the case body or the cover member, with which the pivot convex portion engages.
Equipped with
The replacement lead case for a mechanical pencil, wherein the cover member is movable relative to the case body and the locking member so as to rotate around the pivot convex portion and the pivot concave portion. According to any one of claims 1 to 9,
The case body has the replacement core outlet and a bottom provided at both ends of the case body in a first direction, respectively,
A replacement lead case for a mechanical pencil, comprising a rib that protrudes from an inner wall of the case body and extends along the first direction.

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