JP6133104B2 - Extra lead case - Google Patents

Description

  The present invention relates to a replacement core case for storing a replacement core for a mechanical pencil.

  The lead pencil case for mechanical pencils has an elongated box-shaped case body that can accommodate a large number of spare cores, and a case opening at the longitudinal end of the case body that can be opened and closed. In general, a configuration constituted by a lid body slidably attached is adopted.

In the replacement core case having the above-described configuration, it is preferable that the replacement amount of the replacement core can be adjusted when the replacement core is replenished to the mechanical pencil. A configuration of a spare lead case is disclosed in which the amount of the lead taken out from the case body can be adjusted according to the position.
In addition, the replacement case disclosed in Patent Documents 1 and 2 is configured such that the sliding position of the lid is also positioned with a click feeling.

JP 2010-30136 A JP 2007-50655 A

By the way, in the extra lead case disclosed by patent document 1, the cover body which opens and closes the opening part of a case main body integrates a front-surface part and a back surface part before and after that with respect to the upper surface part which covers the said opening part. The one whose cross section is formed into a U shape by molding is used.
According to this configuration, it is possible to obtain a favorable effect on the operation, such as easy opening / closing operation (sliding operation) of the case opening by the lid, and easy positioning of the lid with respect to the case opening. However, since the lid body has a U-shaped cross section, there is a difficulty in the mechanical strength of the lid body itself, and the lid body falls off the case body due to deformation of the lid body or case body side. The problem remains easy.

On the other hand, the replacement core case disclosed in Patent Document 2 employs a configuration in which a lid is slidably attached to a case body via a lid attachment member. The lid is formed with a cylindrical projection in a direction orthogonal to the sliding direction of the lid, and the lid mounting member has a parallel support rail that slidably receives the projection of the lid. Is provided.
Therefore, in order to assemble the replacement core case, the lid mounting member is press-fitted and fitted into the opening of the case body with the cylindrical protrusion of the lid inserted between the parallel support rails of the lid mounting member. Operation is required.

According to the replacement core case disclosed in Patent Document 2 described above, the problem that the lid body easily drops compared to the replacement core case disclosed in Patent Document 1 can be solved.
However, in the extra lead case disclosed in Patent Document 2, it is necessary to press fit and fit the lid mounting member into the opening of the case body, and press fit the lid mounting member into the opening of the case body. In order to prevent rattling between the two in this state, it is necessary to strictly manage the dimensional relationship between the two. For this reason, there is no clearance between the two, and therefore a relatively large force is required in the above-described press-fitting assembly operation.

  The present invention has been made in order to solve the above-described problems in the conventional spare core case. When the spare core case is assembled, the lid body can be easily attached and the lid body can easily fall off. It is an object of the present invention to provide a replacement case that is configured so that the assembling force between the respective parts can be increased in a state in which the replacement case is assembled.

  The replacement case according to the present invention, which has been made to solve the above-described problems, includes a case main body in which an opening is formed in a part and a plurality of replacement cores can be accommodated therein, and the opening of the case main body. A lid mounting member mounted and having a core discharge port; and a lid body slidably attached to the lid mounting member; and by sliding the lid body with respect to the lid mounting member, A lead core case configured to be able to open and close a lead outlet, wherein the lid mounting member is formed with a slit with a peripheral edge in contact with the case body as a starting end, and the slit is used to In a state where the lid is slidably attached to the lid attachment member and the lid attachment member is attached to the opening of the case body, the columnar body formed in the case body has the lid removal. Configured to be inserted into the notch beginning at the slit formed in the member.

  In this case, in a preferred embodiment, the lid body includes a slide operation unit positioned on the surface side of the lid attachment member via the neck portion moving in a slit formed in the lid attachment member, and the neck portion. And a sliding contact portion in contact with the back side of the lid mounting member is integrally formed, and the sliding contact portion formed on the lid body prevents the lid body from being detached from the lid mounting member. Composed.

  In addition, a plurality of concave portions are formed along the slits on the back surface side of the lid mounting member, and a convex portion toward the concave portion formed in the lid mounting member is formed on the lid body. It is desirable that the sliding position of the lid relative to the lid mounting member can be selected by selectively engaging the plurality of recesses with the portion.

  In this case, more preferably, the convex portion on the lid side facing the concave portion formed in the lid mounting member is formed at the distal end portion of the leg portion extending in the sliding direction of the lid body continuously from the neck portion of the lid body. The click action is applied to the sliding movement of the lid by the spring action of the leg.

  Further, it is possible to suitably adopt a form in which the slit end portion of the slit formed in the lid mounting member constitutes the core discharge port, and depending on the slide position of the lid relative to the lid mounting member, The opening degree of the lead outlet is configured to be adjustable.

  Further, in a preferred embodiment, a fitting projection is formed on a peripheral edge portion of the lid mounting member that contacts the case main body, and the case main body has the lid mounting member attached to the opening of the case main body. It is possible to adopt a configuration in which the fitting protrusion has a window hole inserted from the inside of the case body.

According to the spare core case having the above-described configuration, when the lid attachment member to which the lid is slidably attached is attached to the opening of the case body, the columnar body formed in the case body is formed on the lid attachment member. The slit is inserted into the slit start end.
Therefore, the lid mounting member is prevented from being deformed inward with the slit at the center, and the lid mounting member is firmly mounted in the opening of the case body.

On the other hand, since the columnar body on the case body side is inserted into the slit start end, a slit having a predetermined width is secured, thereby ensuring a smooth sliding operation of the lid relative to the lid mounting member. Can do.
Moreover, since a peripheral side surface is hold | suppressed by the opening part of a case main body, the above-mentioned slit width does not expand. Therefore, the lid body slidably attached via the slit can be effectively prevented from being detached from the lid attachment member.

It is the perspective view which showed the external appearance structure of the spare core case which concerns on this invention. It is the rear view which looked at the spare core case of the state shown in FIG. 1 from the back surface side. It is sectional drawing seen from the aa line in FIG. 2 in the arrow direction. It is sectional drawing seen from the bb line in FIG. 2 in the arrow direction. It is sectional drawing seen in the arrow direction from the cc line in FIG. It is center sectional drawing of a case main body. It is the front view which made the opening part of the case main body front. It is the perspective view which looked at the opening part of the case main body from diagonally upward. It is a perspective view of a lid attachment member. It is the front view which looked at the cover attachment member from the cut start end side of a slit. It is sectional drawing which made the slit of a cover attachment member the center. It is a bottom view of a lid attachment member. It is a perspective view of a lid. It is a perspective view in the state where the lid shown in FIG. 13 was turned upside down. It is a side view of a lid. It is a bottom view of a lid. It is a center sectional view of a lid. It is a top view, a front view, and a central sectional view of a replacement core case in a state where a lid is closed. It is a top view, a front view, and a central sectional view of a replacement core case in a state where a lid is opened one step. It is a top view, a front view, and a central cross-sectional view of a replacement core case in a state where the lid is opened in two stages. It is sectional drawing explaining the sliding condition of the cover body with respect to a cover attachment member later on. It is sectional drawing of the replacement core case which showed the state which takes out a replacement core from a case.

DESCRIPTION OF EMBODIMENTS Hereinafter, a spare case according to the present invention will be described based on the embodiments shown in the drawings.
FIG. 1 and FIG. 2 show the external configuration of the extra lead case 1 in a perspective view seen from the front side and a rear view seen from the rear side, and FIG. 3 to FIG. Is shown.
As shown in these drawings, the replacement core case 1 is formed in an elongated shape as a whole, and a cross section perpendicular to the longitudinal direction thereof has an elliptical shape. And the case main body 11 which can accommodate many replacement cores is attached in the state which the bottom bottom part was obstruct | occluded and the opening part 12 was formed in the upper end part, and the cover attachment member 21 was inscribed in this opening part 12. Yes.

  Further, as shown in FIG. 1, the lid 31 is slidably attached to the lid mounting member 21 by using the slits 24 formed in the lid mounting member 21. The slide operation portion 32 on the upper surface of the lid 31 is formed with a non-slip protrusion 33 in a stripe shape so as to be orthogonal to the sliding direction of the lid.

The case body 11 is formed of a transparent or translucent resin material. As shown in FIGS. 6 to 8, the opening 12 is formed in a slightly thin shape, and the lid mounting member 21 is mounted. An inner wall surface is formed.
Also, a columnar body 13 into which a slit starting end portion of a slit (described later) formed in the lid mounting member 21 is relatively inserted is provided on one side in the major axis direction in the case body 11 having an elliptical cross section. It is formed along the longitudinal direction of the main body.

In addition, an elongated flat surface portion 14 is formed along the longitudinal direction of the case body 11 on the other side in the major axis direction facing the columnar body 13 in the case body 11, and near the inner bottom portion of the case body 11. A pair of opposing wall surface portions 15 having inclined surfaces on both sides are formed so as to sandwich the elongated flat surface portion 14 described above. In this embodiment, the interval between the opposing wall surface portions 15 is set to 2 mm.
Further, as shown in FIG. 5, a fitting window hole 16 for holding the lid mounting member 21 is formed in a part of the peripheral side wall near the opening 12 of the case body 11. .

FIGS. 9-12 shows the single-piece | unit structure of the above-mentioned cover attachment member 21. FIG. The lid mounting member 21 is formed integrally with the cylindrical body portion 22 and an elliptical cylindrical body portion 22 that is attached in a state inscribed in the inner wall surface of the opening 12 of the case main body 11. 11 is provided with an ellipse-shaped flange 23 in contact with the edge of the opening 12.
The lid attaching member 21 is formed with a slit 24 having a peripheral edge in contact with the case main body 11 as a starting end.

That is, the slit 24 is formed at a position where the end in the major axis direction of the ellipse-shaped flange portion 23 and the cylindrical body part 22 is a cut start end portion 24a, and the cut end portion 24b is formed at a position close to the other end portion in the major axis direction. Has been.
The slit 24 formed in the lid attaching member 21 functions to slidably attach the lid 31 as will be described later, and the cut end portion 24b is an outlet of the replacement core as will be described later. It also functions.

As shown in FIG. 11 and FIG. 12, a plurality of recesses are formed on the back surface side of the lid mounting member 21, that is, the surface facing the case body 11 side of the flange portion 23 along both sides of the slit 24 described above. 25 is formed continuously. The recess 25 functions to position the lid 31 in the sliding direction when a lid 31 described later is slidably attached to the lid mounting member 21.
In this embodiment, the concave portion 25 is formed at three locations along both sides of the slit 24, and reference numeral 25 in FIGS. 11 and 12 indicates a central concave portion.

As shown in FIGS. 3 and 11, a stepped portion 26 is formed on the inner peripheral surface of the cylindrical body portion 22 in the lid mounting member 21, that is, on the end portion in the major axis direction of the elliptical cylindrical body portion 22. Has been. The height difference dimension (height dimension) of the stepped portion 26 is preferably smaller than the diameter of the replacement core accommodated in the case main body 11. In this embodiment, the stepped portion 26 The height difference dimension is set to 0.3 mm.
The step portion 26 serves to lock the end of at least one extra lead accommodated in the case main body when the extra lead is discharged from the extra lead case 1, and details of this action. Will be described later.

  Then, as shown in FIG. 11, the cut end portion 24b of the slit 24 is located on the extension line in the longitudinal direction of the replacement core locked to the step portion 26, and as described above, in this embodiment Is configured such that when the lid 31 is slid, the cut end 24b of the slit 24 also serves as a core discharge port (indicated by the same reference numeral as the cut end 24b).

  As shown in FIGS. 10 and 12, a protrusion 22 a is formed on the outer surface of the cylindrical portion 22 in the lid mounting member 21. The projection 22a has a tapered slope, and when the cylindrical portion 22 of the lid mounting member 21 is attached to the opening 12 of the case body 11, the projection 22a is located on the case body 11 side. It is inserted and fitted into the window hole 16 formed in the inside from the inside. Thereby, the lid attaching member 21 is attached to the case main body 11.

FIGS. 13 to 17 all show a single unit configuration of the lid 31 described above.
As described above, the lid body 31 includes the slide operation portion 32 formed in an elliptical shape, and a neck portion 34 formed in a thin plate shape is formed so as to stand at right angles to the back surface of the slide operation portion 32. Has been. And the sliding contact part 35 which contact | connects the back surface side of the said cover attachment member 21 is integrally shape | molded so that it may protrude over the both sides with respect to the neck part 34. FIG.
That is, the neck portion 34 is inserted into the slit 24 formed in the lid attachment member 24 described above, so that the lid body 31 is slidably attached to the lid attachment member 24 and on both outer sides of the neck portion 34. The protruding sliding contact portion 35 contacts the back side of the lid mounting member 24, so that the lid body 31 acts so as to be prevented from being detached from the lid mounting member 24.

In the state where the lid 31 is slidably attached to the lid attachment member 21, a leg portion 36 that protrudes from the back surface side of the lid attachment member 21 and extends in the sliding direction of the lid 31 is the neck portion 34. It is molded as a single piece.
Further, the distal end portion side of the leg portion 36 is formed into a thick portion 36a toward the back surface side of the lid body 31, and a wedge-shaped convex portion 38 is formed at the distal end portion of the thick portion 36a.

On the other hand, the leg portion 36 is formed with ridge lines 39, 39a along the sliding direction including the thick portion 36a, and the ridge lines 39, 39a are centered on the leg portions 36, 36a. Inclined surfaces 41 and 41a are respectively formed.
In this embodiment, the angle at which the left and right inclined surfaces with the ridge line at the center intersect is set to 140 degrees. Further, the ridge line 39 a formed in the thick part 36 a of the leg portion 36 among the ridge lines is formed in a direction substantially orthogonal to the longitudinal direction of the case body 11 when assembled as the replacement core case 1.

  In order to assemble the replacement core case 1 including the case main body 11, the lid attachment member 21, and the lid body 31 described above, first, the lid 24 is formed on the cut start end portion 24 a of the slit 24 formed in the lid attachment member 21. The thin neck 34 in the body 31 is inserted. The cylindrical body portion 22 of the lid mounting member 21 is set in such a manner that the flange portion 23 of the lid mounting member 21 and the slide operation portion 32 of the lid body 31 are vertically overlapped with each other. Is inserted into the opening 12 of the case body 11 in the axial direction.

By this operation, the fitting protrusion 22 a formed on the cylindrical body portion 22 of the lid mounting member 21 is fitted from the inside into the fitting window hole 16 formed in the vicinity of the opening 12 of the case body 11. Thereby, the lid attaching member 21 is attached to the case main body 11.
At this time, as shown in FIG. 4, the end of the columnar body 13 formed in the case body 11 is relatively inserted into the cut start end 24 a of the slit 24 formed in the lid mounting member 21. The As a result, the slit 24 formed in the lid mounting member 21 has a predetermined width interval secured by the columnar body 13 on the case body 11 side, and deformation with the slit 24 inside is prevented.

Therefore, after the lid mounting member 21 is attached to the case body 11, the above-described fitting window hole 16 on the case body 11 side and the fitting protrusion 22a on the lid mounting member 21 side cause the two to be firmly coupled. In addition, problems such as rattling between the two can be solved.
The lid body 31 slidably attached to the lid attachment member 21 is prevented from being detached from the lid attachment member 21 by the action of the sliding contact portion 35 integrally formed with the neck portion 34.
In addition, the slit 24 formed in the lid mounting member 21 has a predetermined width interval secured by the columnar body 13, so that a smooth sliding operation of the lid 31 can be ensured.

18 to 20 show the sliding state of the lid 31 in the extra lead case 1, and FIG. 21 explains the main part in order.
FIG. 18 shows a state in which the lid body 31 is closed. In this state, as shown in FIG. 21A, the wedge-shaped convex portion 38 formed on the thick portion 36a of the leg portion 36 has a lid portion. The rear surface of the mounting member 21 is engaged with a recess 25 on the back side in the sliding direction.

FIG. 19 shows a state in which the lid body 31 is slid to open the lid body 31 one stage. In this state, as shown in FIG. Is engaged with the concave portion 25 formed in the center in the sliding direction.
In this state, as shown in FIG. 19, the cut end portion 24b of the slit 24 formed in the lid mounting member 21 is exposed by the movement of the slide operation portion 32, and as shown in FIG. The thick part 36a moves slightly closer to the center. As a result, a small core discharge port 24 b is formed in the replacement core case 1.

FIG. 20 shows a state where the lid body 31 is further slid to open the lid body 31 in two stages. In this state, as shown in FIG. It engages with a recess 25 formed in the member 21 in the sliding direction.
In this state, as shown in FIG. 20, the degree of exposure of the cut end portion 24b of the slit 24 formed in the lid mounting member 21 is increased by further movement of the slide operation portion 32, and as shown in FIG. Thus, the thick part 36a moves closer to the center part. As a result, a large core discharge port 24 b is formed in the replacement core case 1.

  In the replacement core case 1 in which the sliding operation of the lid body 31 is performed, the convex portion 38 is provided on the lid mounting member 21 side on the leg portion 36 that supports the wedge-shaped convex portion 38 that is integrally formed with the lid body 31. A spring action for pressing toward the concave portion 25 is applied, so that a clicking action is given to the sliding operation of the lid body 31 and at the same time, the lid body 31 is also positioned in the sliding direction.

By the way, the case main body 11 in this kind of replacement core case 1 is formed of the resin material as described above, and the degree of generation of static electricity is high as is well known. Therefore, when an attempt is made to remove the extra lead from the extra lead case 1, there is a problem that the operation is hindered due to the influence of static electricity.
FIG. 22 illustrates a refill case 1 according to the present invention that can eliminate the above-described operational problems caused by static electricity. This is a state in which the lid 31 is opened one step as shown in FIG. Is shown.

When taking out the extra lead from the extra lead case 1, generally, as shown in FIG. 22, the lead outlet 24b is oriented downward.
In this case, the step portion 26 is formed in the immediate vicinity of the core discharge port 24b as described above, and the height dimension of the step portion 26 is set to 0.3 mm as described above. Further, as already described, a pair of opposing wall surface portions 15 having inclined surfaces on both sides are formed on the inner bottom portion in the case main body 11 so as to sandwich the elongated flat surface portion 14. Is set to 2 mm.

The replacement core accommodated in the replacement core case 1 has a diameter of 0.5 mm, 0.7 mm, or 0.9 mm in the current standard, and therefore the replacement core case 1 is in the posture shown in FIG. When taken, the two or three replacement cores L1 are held in parallel with the elongated flat surface portion 14 by being locked by the step portion 26 described above.
In this state, if the lead discharge port 24b is tilted downward, it slides on the replacement lead L1 locked by the step portion 26, and the other replacement lead L2 is discharged from the lead discharge port 24b.

In this case, since the replacement cores L1 and L2 are made of the same material, the action of adsorbing each other due to static electricity does not occur. Therefore, the replacement core L2 is smoothly discharged from the core discharge port 24b without being affected by static electricity. Is done.
In addition, since the height dimension of the stepped portion 26 described above is set to 0.3 mm, the last one of the replacement cores accommodated in the replacement core case 1 is not significantly affected by the stepped portion 26. It can be taken out from the lead outlet 24b.

Further, in the above-described replacement core case 1, the ridge lines 39 and 39a are formed along the slide direction on the leg portion 36 formed on the lid 31 as described above, including the thick portion 36a. With the ridge lines 39 and 39a as the center, inclined surfaces 41 and 41a are formed on the left and right, respectively. In addition, a ridge line 39 a formed in the thick part 36 a of the leg portion 36 is formed in a direction substantially orthogonal to the longitudinal direction of the case body 11.
Accordingly, when the lid 31 is in a downward posture, the replacement core accommodated in the case body 11 acts so as to be distributed in the case body 11 with the ridgelines 39 and 39a as a boundary.

Thereby, when trying to take out the extra lead, it is effectively avoided that the majority of the extra lead accommodated in the case body 11 is concentrated near the lead outlet 24b and the spare lead is clogged. it can. Particularly in this embodiment, as shown in FIG. 22, the ridge line 39 of the leg portion 36 is formed slightly downward toward the core discharge port 24b.
On the other hand, the ridge line 39a formed in the thick portion 36a is formed so as to be substantially orthogonal to the longitudinal direction of the case body 11, and the replacement core is concentrated near the core discharge port 24b by the form of the ridge line 39a. Can be effectively prevented, and a more smooth replacement operation can be realized.

  The above-described extra lead case according to the present invention is characterized in that it has the configuration described in the section for solving the above-described problems, and as a result, as described in the section of the effect of the invention described above. You can get your own unique effects.

DESCRIPTION OF SYMBOLS 1 Replacement core case 11 Case main body 12 Opening part 13 Columnar body 14 Plane part 15 Wall part 16 Fitting window hole 21 Lid attachment member 22 Cylindrical part 22a Fitting protrusion 23 Gutter part 24 Slit 24a Cutting start part 24b Cutting terminal part ( Core outlet)
25 Concave part 26 Step part 31 Cover body 32 Slide operation part 33 Anti-slip projection 34 Neck part 35 Sliding contact part 36 Leg part 36a Thick part 38 Convex part 39, 39a Ridge line 41, 41a Inclined surface L1, L2 Replacement core

Claims (6)

A case main body that has an opening partly formed and can accommodate a plurality of replacement cores therein, a lid mounting member that is attached to the opening of the case main body and has a core discharge port, and the lid mounting member And a lid that is slidably attached, and by sliding the lid against the lid attachment member, the lead outlet configured to be able to open and close the lead outlet,
The lid mounting member is formed with a slit with a peripheral edge in contact with the case body as a starting end, and the lid is slidably attached to the lid mounting member using the slit, and The columnar body formed in the case body is inserted into the cut start end portion of the slit formed in the lid body in a state where the lid body is attached to the opening of the case body. An extra lead case characterized by that.   The lid body includes a slide operation unit positioned on the front surface side of the lid mounting member via a neck portion moving in a slit formed in the lid mounting member, and a back surface side of the lid mounting member via the neck portion. And a sliding contact portion in contact with the lid, and the sliding contact portion formed on the lid body is configured to prevent the lid body from being detached from the lid mounting member. Item 6. A refill case described in Item 1.   A plurality of concave portions are formed along the slits on the back surface side of the lid mounting member, and a convex portion is formed on the lid body toward the concave portion formed in the lid mounting member. The replacement core case according to claim 2, wherein a sliding position of the lid relative to the lid mounting member is selectable by selectively engaging with a plurality of recesses.   The convex portion on the lid side facing the concave portion formed in the lid mounting member is formed at the tip of the leg portion extending in the sliding direction of the lid body continuously from the neck portion of the lid body, and the spring of the leg portion 4. The refill case according to claim 3, wherein a click action is given to the sliding movement of the lid by the action.   The slit end portion of the slit formed in the lid mounting member constitutes the core discharge port, and the opening degree of the core discharge port can be adjusted according to the slide position of the lid relative to the lid mounting member The replacement core case according to any one of claims 1 to 4, wherein the replacement core case is provided.   A fitting projection is formed on a peripheral edge portion of the lid mounting member that is in contact with the case main body, and the fitting projection is formed on the case main body in a state where the lid mounting member is attached to the opening of the case main body. The replacement core case according to any one of claims 1 to 5, wherein a window hole to be inserted from the inside of the main body is formed.

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