WO2022131329A1 - 替芯ケース - Google Patents
替芯ケース Download PDFInfo
- Publication number
- WO2022131329A1 WO2022131329A1 PCT/JP2021/046527 JP2021046527W WO2022131329A1 WO 2022131329 A1 WO2022131329 A1 WO 2022131329A1 JP 2021046527 W JP2021046527 W JP 2021046527W WO 2022131329 A1 WO2022131329 A1 WO 2022131329A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- case
- lid
- replacement core
- cover member
- longitudinal direction
- Prior art date
Links
- 239000011347 resin Substances 0.000 claims description 17
- 229920005989 resin Polymers 0.000 claims description 17
- 238000003860 storage Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 9
- 235000014443 Pyrus communis Nutrition 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 2
- 238000009751 slip forming Methods 0.000 claims description 2
- 230000004308 accommodation Effects 0.000 abstract 2
- 238000000605 extraction Methods 0.000 abstract 1
- 238000000465 moulding Methods 0.000 description 18
- 238000000034 method Methods 0.000 description 14
- 230000001681 protective effect Effects 0.000 description 6
- 230000005611 electricity Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 210000003813 thumb Anatomy 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- 238000005530 etching Methods 0.000 description 1
- 238000012840 feeding operation Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D11/00—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material
- B65D11/10—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material of polygonal cross-section and all parts being permanently connected to each other
- B65D11/12—Containers having bodies formed by interconnecting or uniting two or more rigid, or substantially rigid, components made wholly or mainly of plastics material of polygonal cross-section and all parts being permanently connected to each other of drawer-and-shell type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
- B65D85/20—Containers, packaging elements or packages, specially adapted for particular articles or materials for incompressible or rigid rod-shaped or tubular articles
- B65D85/28—Containers, packaging elements or packages, specially adapted for particular articles or materials for incompressible or rigid rod-shaped or tubular articles for pencils or pens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K31/00—Writing implement receptacles functioning as, or combined with, writing implements
- B43K31/005—Distributors for leads, cartridges and the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K19/00—Non-propelling pencils; Styles; Crayons; Chalks
- B43K19/14—Sheathings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/34—Trays or like shallow containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D43/00—Lids or covers for rigid or semi-rigid containers
- B65D43/14—Non-removable lids or covers
- B65D43/20—Non-removable lids or covers linearly slidable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/02—Containers or packages with special means for dispensing contents for dispensing rod-shaped articles, e.g. needles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
- B65D85/20—Containers, packaging elements or packages, specially adapted for particular articles or materials for incompressible or rigid rod-shaped or tubular articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
- B65D85/20—Containers, packaging elements or packages, specially adapted for particular articles or materials for incompressible or rigid rod-shaped or tubular articles
- B65D85/24—Containers, packaging elements or packages, specially adapted for particular articles or materials for incompressible or rigid rod-shaped or tubular articles for needles, nails or like elongate small articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D2543/00—Lids or covers essentially for box-like containers
- B65D2543/00009—Details of lids or covers for rigid or semi-rigid containers
- B65D2543/00342—Central part of the lid
- B65D2543/00388—Bent or angled, i.e. central part presents two main planes
Definitions
- the present invention relates to a replacement core case for accommodating a writing core used for a mechanical pencil or the like.
- the replacement core case that houses the writing core used for mechanical pencils and the like is often composed of two parts, a bottomed case body and a lid that is detachably attached to the opening of the case body. ..
- the replacement core case disclosed in Patent Document 1 is composed of two parts, a case body made of a resin material and a lid made of a resin material, and the lid is formed in a direction orthogonal to the longitudinal direction of the replacement core case. By sliding it, the opening of the case body (the outlet for the replacement core) is opened.
- the slide position of the lid with respect to the case opening is configured to be set in, for example, two stages, whereby the user can set an opening having a size suitable for taking out the replacement core. ..
- the replacement core case disclosed in Patent Document 2 is also composed of two parts, a case body made of a resin material and a lid made of a resin material, and a lid body is formed in the opening of the bottomed case body. Is detachably attached.
- the opening (removal port for the replacement core) formed in the case body is cut diagonally on the front side, whereby the user can pick up the replacement core with his or her fingertips, making it easy to use.
- the core case is realized.
- the present invention has been made by paying attention to the above-mentioned problems of the conventional replacement core case, and it is possible to easily take out the required replacement core without turning the outlet of the replacement core downward.
- the purpose of the present invention is to provide a replacement core case that solves the problems of conventional ones such that a large amount of replacement cores pop out from the case body at the same time.
- the inner space surrounded by the back plate and the left and right leg plates is used as a replacement core storage chamber, and the tip portion in the longitudinal direction of the back plate is used.
- a guide body is formed along the longitudinal direction on at least one of the leg plates in the lid portion and the outer leg plate on the cover member side that covers the leg plates.
- a sliding body in contact with the guide body is formed on one of the other surfaces, and the sliding body is slidably contacted with the guide body as the lid portion of the case body is extended from the tip end portion of the cover member. It is characterized in that a rotating motion of bending the lid portion toward the back surface side is provided via the thin-walled portion.
- an inner lid attached to the left and right leg plates of the case body to cover the replacement core accommodating chamber on the front side is further provided, and the replacement core accommodating in the back plate of the case body. It is desirable that the inner surface of the inner surface of the chamber and the inner surface of the inner lid of the inner lid on the accommodating chamber side are provided with protrusions to avoid surface contact with the accommodating replacement core.
- the inner lid is formed so that a pair of protective plates are located inside the left and right leg plates from the thin portion of the case body to the lid portion.
- the preferred form of the guide body is formed in a state of protruding in a rail shape extending along the longitudinal direction on the outside of the leg plate of the lid body portion.
- the preferred form of the locking portion is formed so as to project so as to be in contact with the guide body at the tip end portion of the cover member in which the lid body portion is extended by the sliding operation. Then, by forming an inclined region away from the back plate from the tip portion toward the thin-walled portion side in the guide body, the lid body is formed through the thin-walled portion with the sliding operation. A rotational motion is given to bend the portion toward the back side.
- a parallel region parallel to the back plate is formed on the tip end side, and the inclined region described above is formed following the parallel region. Will be done.
- a closing plate is formed at the tip of the lid by connecting the left and right leg plates to close the tip, and the lid is housed in the cover member to cover the cover.
- the closing plate is visibly arranged at the tip of the cover member in a state where the front plate of the member is viewed from the front.
- both the case body and the cover member are formed of a resin material, and a large number of linear protrusions arranged in a direction orthogonal to the longitudinal direction are formed on the back surface of the back plate of the case body, and the cover is formed. It is desirable that, for example, a circular recess be formed on the surface of the front plate of the member.
- a slide rib is formed on the outer surface of the inner lid along the longitudinal direction of the inner lid, and the inner bottom surface of the cover member is a pear ground.
- the case main body is provided with an operation portion projecting to the outside of the leg plate, and the operation portion is provided with respect to the longitudinal direction of the cover member.
- the replacement core case according to the present invention is provided with the left and right leg plates on both sides of the main face plate integrally, so that the cross section orthogonal to the longitudinal direction is formed into a U shape and faces inward with respect to the left and right leg plates.
- It is a replacement core case in which a member having an inward protruding portion integrally formed with the leg plate is used as one replacement core case component, and is sandwiched between the left and right leg plates of the replacement core case component.
- a first step portion having a step with respect to the inner bottom surface is formed along the left and right leg plate sides excluding the central portion in the longitudinal direction of the inner bottom surface. It is a feature.
- a second step portion having a step with respect to the inner side surface is continuously formed on the opposite inner side surface of the left and right leg plates.
- the configuration is adopted.
- a third step portion having a concave-convex direction different from that of the first step portion is formed at a position separated from the first step portion.
- the first step portion is projected and molded with respect to the inner bottom surface, and the third step portion is recessed with respect to the inner bottom surface.
- the case body in which the lid portion and the case portion are formed via the flexible thin-walled portion is slidably mounted in the cover member to form the replacement core case.
- a guide body and a sliding body that can be slidably contacted with each other by the sliding operation are provided on either one of the lid body portion and the cover member side and the other side, so that the lid body portion is moved to the back side along with the sliding operation.
- a rotating motion is given to warp. Therefore, since the tip end portion of the replacement core is exposed in a state of protruding from the case portion by the rotation operation of the lid body portion by the thin-walled portion, the required replacement core can be easily taken out. According to this, since the replacement core can be taken out without turning the replacement core downward, a replacement core case that solves the problems of the conventional one such as a large amount of replacement cores popping out from the case body side at the same time can be obtained. Can be provided.
- an inner lid that covers the replacement core storage chamber on the front side is further attached to the case body side, and protrusions are formed on the case body side and the inner surface of the inner lid to avoid surface contact with the replacement core, so that the replacement core can be made.
- the problem of sticking to the replacement core accommodating room due to static electricity can be effectively solved.
- the case body and the inner lid are formed by two parts, the facing protrusions are forcibly removed in the mold release as compared with the case where the protrusions are formed on the inner surfaces facing each other by one part. You can avoid the problem.
- a pair of protective plates located from the thin portion of the case body to the lid portion are formed inside the left and right leg plates of the case body, respectively, so that the inner lid can be drawn out by a sliding operation. It is possible to effectively solve the problem that the replacement core is pinched between the leg plate on the lid side and the leg plate on the case part, which is warped on the back side when the lid body part is returned to the inside of the cover member. can.
- FIG. 1 it is a perspective view which looked at the state which accommodated the replacement core from the cover member side. It is a perspective view which showed the single item structure of the case body which constitutes the replacement core case. It is also a front view. It is also a top view. It is a perspective view which showed the structure of a single item of an inner lid. It is also a front view. It is sectional drawing seen in the direction of an arrow from the dd line of FIG. It is a perspective view which looked at the inner lid from the outer surface side. It is a perspective view which showed the structure of a single item of a cover member. It is also a front view. It is sectional drawing seen in the direction of an arrow from the e-e line of FIG.
- FIG. 6 is a cross-sectional view taken in the direction of an arrow from the gg line of FIG. 26.
- FIG. 6 is a cross-sectional view taken in the direction of an arrow from the hh line of FIG. 26.
- FIGS. 1 to 21 show the replacement core case of the first embodiment
- FIGS. 22 to 23 show the replacement core case of the second embodiment
- FIGS. 24 to 29 show a method of molding the replacement core case component and an example of the obtained replacement core case.
- the replacement core case of the first embodiment will be described with reference to FIGS. 1 to 21.
- 1 and 2 show the overall configuration of the replacement core case as viewed from the front surface side of the cover member 1 and as viewed from the back surface side of the case body 2.
- the cover member 1 and the case body 2 are molded of a resin material, and the inner lid 3 attached to the case body 2 described later and covered by the cover member 1 is also similarly formed.
- case main body 2 and the inner lid 3 are slidably attached to the cover member 1 along the longitudinal direction with respect to the cover member 1, to form a replacement core case.
- a front end portion one of the longitudinal directions in which the lid portion 2e described later of the case body 2 is extended from the cover member 1
- the other will be referred to as a rear portion for convenience of explanation.
- 10 to 19 show the individual components of the case body 2, the inner lid 3, and the cover member 1, and first, the detailed configuration of each member is based on each figure showing the individual components. Will be explained.
- 10 to 12 show the case main body 2, and the case main body 2 is formed into a U-shape with a cross section orthogonal to the longitudinal direction formed by the back plate 2a and the left and right leg plates 2b.
- a replacement core accommodating chamber 2c is formed in the enclosed inner space.
- a lid portion 2e is formed on the front end portion side and a case portion 2f is formed on the rear portion side via a bendable thin-walled portion 2d provided in the vicinity of the tip portion in the longitudinal direction of the back plate 2a.
- the left and right leg plates 2b are connected to the lid portion 2e to form a closing plate 2g that closes the tip portion of the lid portion 2e, and the left and right leg plates 2b are connected to the rear portion of the case portion 2f.
- a rear closing plate 2h that closes the rear portion of the case portion 2f is formed.
- a pair of guide bodies 2j are formed on the outer sides of the left and right leg plates 2b of the lid body portion 2e so as to project in a rail shape along the longitudinal direction.
- the guide body 2j has a parallel region 2j1 parallel to the back plate 2a formed on the tip end side of the lid portion 2e, and the thin-walled portion 2d side following the parallel region 2j1.
- An inclined region 2j2 is formed toward the back plate 2a.
- the parallel region 2j1 and the inclined region 2j2 of the guide body 2j are moved toward the cover member 1 side as the lid portion 2e of the case body 2 is unwound from the tip end portion of the cover member 1 described later.
- the lid portion 2e acts to give a rotating motion to warp the lid portion 2e via the thin-walled portion 2d.
- fitting recesses 2k for attaching the inner lid 3 described later are formed substantially in the central portion in the longitudinal direction and closer to the lid portion 2e.
- a pair of slide protrusions 2m are formed along the longitudinal direction of the case body 2 on both outer sides of the left and right leg plates 2b in the case portion 2f.
- the slide protrusion 2m is engaged with a case support portion 1d provided on the cover member 1 to be described later, and acts so that the case body 2 is slidably supported in the longitudinal direction.
- rib-shaped click protrusions 2n are formed near the rear portions of the left and right leg plates 2b in the case portion 2f, which are the case main body 2 when the cover member 1 slides with respect to the case main body 2.
- the click action is generated. Therefore, this click action also occurs when the case body 2 is returned to the inside of the cover member 1.
- a plurality of protrusions 2p for avoiding surface contact with the accommodating replacement core are orthogonal to the longitudinal direction of the case body 2. It is formed. This serves to prevent the replacement core L from being attracted by static electricity and sticking to the inner surface of the replacement core storage chamber 2c of the case body 2 formed of the resin material.
- a recessed portion 2q is formed on the back side of the back plate 2a in the case body 2 along the longitudinal direction of the latter half, and a recessed portion 2q is formed in the recessed portion 2q in the longitudinal direction of the case body 2.
- a large number of linear protrusions 2r arranged in a direction orthogonal to the above are formed.
- a triangular arrow mark 2s is preferably formed on the tip end side of the recessed portion 2q. The arrow mark 2s indicates the sliding direction of the case main body 2 with respect to the cover member 1, and the protrusion group 2r functions as a non-slip of the fingertip in the sliding operation.
- Inward ribs 2t are formed on the left and right leg plates 2b of the case body 2 toward the inside of the case body 2, respectively. This inward rib 2t comes into contact with the side side of the inner lid 3 when the inner lid 3 described later is attached to the case main body 2 to fill the gap between the case main body 2 and the inner lid 3. , The fitting force of the inner lid 3 with respect to the case body 2 acts. As a result, the claws do not come off one side at a time during disassembly, and the fixing force can be improved.
- three inclined protrusions 2u are integrally formed along the same plane as the upper edges of the left and right leg plates 2b on the case portion 2f side of the case body 2, so-called fitting recesses 2k. All of these inclined protrusions 2u are inclined so that the protrusion surface becomes lower from the outside to the inside of the case portion 2f. Further, the case portion 2f is formed so that the mountain-shaped protrusions 2v face each other on the inner surfaces of the left and right leg plates 2b so as to approach the inclined protrusions 2u on the front end portion side and the rear end portion side. Further, on the lid portion 2e side of the case body 2, rib-shaped protrusions 2w are formed so as to face each other inside the left and right leg plates 2b.
- the inclined protrusion 2u, the chevron protrusion 2v, and the rib-shaped protrusion 2w are all in a state where a predetermined number of replacement cores L are housed in the replacement core storage chamber 2c of the case body 2, and the replacement core case is, for example, by an automatic machine. When assembling, it acts to prevent the core of the replacement core L from breaking. That is, in order to assemble this replacement core case using the above-mentioned automatic machine, a predetermined number of replacement cores L are put into the replacement core storage chamber 2c of the case body 2 arranged on the horizontal plane according to the longitudinal direction thereof.
- the protrusion surface of the inclined protrusion 2u is inclined so as to be lowered from the outside to the inside of the case portion 2f, the elongated replacement core L is placed on the same plane as the fitting recess 2k. It is prevented from being placed, and all of the replacement cores L thrown in by this act to be accommodated in the replacement core storage chamber 2c of the case body 2.
- the above-mentioned chevron protrusions 2v and rib-shaped protrusions 2w are replaced with the central portion side of the replacement core storage chamber 2c so that the replacement cores L inserted into the replacement core storage chamber 2c do not come into contact with the left and right leg plates 2b. It functions as a guide body for guiding the core L. This is because, in the process of fitting the inner lid 3 to the case body 2, a pair of left and right protective plates 3b formed on the inner lid 3 sandwich the tip portion of the replacement core L inserted into the replacement core storage chamber 2c. It is to prevent. As a result, it is possible to prevent the replacement core L from breaking and prevent the occurrence of defects in the product as the replacement core case.
- FIG. 13 to 16 show a single item configuration of an inner lid 3 attached to the left and right leg plates 2b of the case body 2 and covering the replacement core accommodating chamber 2c on the front side.
- the inner lid 3 is formed in a flat shape, and a fitting convex portion 3a formed in a rectangular shape is formed in the vicinity of the central portion and the tip portion in the longitudinal direction, respectively.
- the fitting convex portion 3a is fitted into the inner lid fitting recess 2k formed in the case main body 2, the inner lid 3 and the case main body 2 are positioned, and the replacement core accommodating chamber 2c of the case main body 2 is fronted. It is attached so as to cover it on the side.
- a pair of protective plates 3b formed at the tip of the inner lid 3 are arranged so as to be located inside the left and right leg plates 2b of the case body 2 from the thin-walled portion 2d of the case body 2 to the lid portion 2e.
- the pair of spacers 3c formed so as to project from the inner surface of the inner lid 3 maintain a certain distance from the back plate 2a of the cover member 1 in the rear portion of the inner lid 3. It works like that.
- a plurality of protrusions 3d are formed in a direction orthogonal to the longitudinal direction of the inner lid 3. This is to avoid surface contact with the replacement core L in the resin inner lid 3 that covers the replacement core storage chamber 2c of the case portion 2f from the front surface, and the replacement core L is attracted by static electricity to the inner lid 3. It will avoid sticking.
- a rib-shaped stopper 3e protruding from the inner surface of the inner lid 3 is formed.
- the stopper 3e is located immediately before the gap generated between the case main body 2 and the rear end portion of the inner lid 3 when the inner lid 3 is attached to the case main body 2 described above, and accommodates the replacement core.
- the replacement core L housed in the chamber 2c acts to prevent leakage from the replacement core case.
- FIG. 16 is a perspective view of the inner lid 3 as viewed from the outer surface side, and two slide ribs 3f are formed on the outer surface of the inner lid 3 in a parallel state to each other. Therefore, in the state where the inner lid 3 is attached to the case body 2 described above, the two slide ribs 3f are located on the outer surface of the inner lid 3. As a result, the two slide ribs 3f slide along the longitudinal direction with respect to the satin ground formed on the inner bottom surface 1 m of the cover member 1, which will be described later, and an appropriate contact resistance is obtained. It works as it is obtained.
- the cover member 1 has a U-shaped cross section orthogonal to the longitudinal direction formed by the front plate 1a and the left and right outer leg plates 1b.
- a rear leg plate 1c connecting the left and right outer leg plates 1b is formed at the rear portion of the cover member 1.
- the front plate 1a covers the replacement core accommodating chamber 2c of the cover member 1, and the left and right leg plates 2b of the case body 2 are positioned inside the left and right outer leg plates 1b, so that the case body 2 can be slid in the longitudinal direction.
- the lid body portion 2e of the case body 2 is configured to be extended from the tip end portion side of the cover member 1 by the sliding operation.
- case support portions 1d are formed at two locations in the longitudinal direction so as to face each other inward, and these are the left and right formed on the leg plates 2b of the case body 2.
- the case body 2 is slidably supported, and the case body 2 is prevented from coming off from the cover member 1.
- a pair of slide protrusions 1e are formed so as to face each other on the inside of the left and right outer leg plates 1b near the rear part. This is because the rib-shaped click protrusion 2n formed on the case body 2 gets over the front, so that a click action is generated when the case body 2 is opened.
- a pair of click bodies 1f are formed so as to face each other on the inner side of the rear side of the outer leg plate 1b, and the click bodies 1f are formed on the case body 2 when the case body 2 is slid.
- the rib-shaped click protrusion 2n gets over the rear, a click action is generated.
- the sliding bodies 1g are projected so as to face each other in the outer leg plate 1b at the tip of the cover member 1.
- the pair of sliding bodies 1g tilts and the parallel region 2j1 of the guide body 2j formed on the lid body 2e when the case body 2 slides and the lid body 2e protrudes from the tip of the cover member 1. It is in contact with the region 2j2 and functions to bend the lid portion 2e to the back side. The details of the operation will be described later with reference to FIGS. 4 to 7 and the like.
- the stopper 1h is provided so as to face each other slightly toward the rear portion of the sliding body 1g at the tip end portion of the cover member 1.
- the pair of stoppers 1h is brought into contact with the tip of the slide protrusion 2m formed on the leg plate 2b of the case 2f in a state where the lid 2e is fully opened by the slide of the case body 2 (see FIG. 7).
- the sliding operation of the case body 2 is stopped.
- the pair of stoppers 1h brings the lid portion 2e in a state of being in contact with the return guide portion 2j3 of the guide body 2j and warped toward the back side in the slide operation of pulling the case body 2 back into the cover member 1 to the case body. It also plays a role of returning to the state along the longitudinal direction of 2. The operation will be described later with reference to FIGS. 4 to 7 and the like.
- the inner bottom surface 1 m surrounded by the left and right outer leg plates 1b of the cover member 1 has a rectangular flat protrusion formed slightly protruding from the inner bottom surface 1 m. 1n is intermittently formed along the left and right outer leg plates 1b side excluding the central portion in the longitudinal direction of the inner bottom surface 1 m.
- the inner bottom surface 1 m of the cover member 1 is formed as a satin ground, and the slide rib 3f formed on the outer surface of the inner lid 3 is formed on the satin ground 1 m on the inner bottom surface 1 m of the cover member 1. , The rib 3f slides along the longitudinal direction.
- the arithmetic mean roughness (Ra) of the satin ground formed on the inner bottom surface 1 m of the cover member 1 is preferably in the range of 5 ⁇ m to 50 ⁇ m. If the value is smaller than 5 ⁇ m, the surface becomes close to a mirror surface, the contact resistance becomes large, and the sliding with the inner lid 3 may not be able to slide smoothly.
- the arithmetic mean roughness (Ra) is in the range of 10 ⁇ m to 25 ⁇ m in terms of obtaining good mold releasability and mold surface transferability.
- the satin ground is obtained by subjecting the surface of the mold to an etching process, a sandblasting process, a polishing process other than a mirror finish, or the like. Further, it is also possible to make a satin ground by leaving the surface of the mold component after electric discharge machining without polishing or the like.
- the arithmetic mean roughness (Ra) of the satin ground refers to the arithmetic mean roughness (Ra) defined in JIS B0601: 1982. Further, (model name SJ-301 manufactured by Mitutoyo Co., Ltd.) is used for measuring the surface roughness at that time. Further, by setting the pulling force between the cover and the main body to 15 N or more, the cover cannot be easily removed from the main body and the parts can be prevented from falling off.
- a circular recess 1k is formed in a substantially central portion of the cover member 1.
- the recess 1k and the linear protrusion group 2r on the case body 2 side described above when the case body 2 is slid and operated with respect to the cover member 1, for example, a thumb is placed on the recess 1k and the case body is used.
- the sliding operation can be smoothly performed.
- the cover member 1 when the case body 2 is housed in the cover member 1, the cover member 1 is viewed from the front of the front plate 1a of the cover member 1 (the state shown in FIG. 1).
- the closing plate 2g of the lid portion 2e formed at the tip of the case body 2 becomes visible. According to this, by matching the resin color for molding the case body 2 to almost the same color as the core color of the replacement core L housed in the replacement core case, the core color housed in the replacement core case can be changed to the closing plate 2g. It is also possible to make the user identify by coloring.
- the user can be made to identify by the density of the closing plate 2g.
- the same color mentioned here is the hue of the Munsell color system, and indicates within 10 hues, and within 3 in terms of lightness and saturation.
- the density shall be measured on the surface of the component with a denitometer (sakura DENSITO METER PDA65 Konishi Roku Photo Industry Co., Ltd.).
- the hardness of the core indicates the writing hardness measured by the method specified in JIS S6005: 2007.
- FIG. 3 to 9 show mainly the opening / closing operation of the lid body portion 2e when the case body 2 is slid with respect to the cover member 1.
- FIG. 3 is a central cross-sectional view (cross-sectional view seen from line aa of FIG. 2) in a state where the case main body 2 to which the inner lid 3 is attached is housed in the cover member 1, and
- FIG. 4 is a cross-sectional view at this time. It is sectional drawing (cross-sectional view seen from the bb line of FIG. 2) along one guide body 2j part formed in the lid body part 2e. In the state shown in FIG.
- the stopper 1h of the cover member 1 is in contact with the return guide portion 2j3 of the guide body 2j, and therefore, the lid body portion 2e Maintains a closed state along the longitudinal direction of the cover member 1.
- FIG. 5 shows a state in which the lid body portion 2e of the case body 2 is projected from the tip end portion of the cover member 1 by about half the length dimension of the lid body portion 2e
- FIG. 6 shows the lid body portion at this time.
- the state of 2e is shown. That is, in the initial stage (first half portion) of projecting the lid body portion 2e from the tip end portion of the cover member 1, the sliding body 1g on the cover member 1 side is a parallel region of the guide body 2j formed on the cover body portion 2e. Slide in contact with 2j1. For this reason, the lid body portion 2e is provided with an operation of feeding out the lid body portion 2e from the tip end portion of the cover member 1 without giving a rotation operation.
- the sliding body 1g is slightly in contact with the inclined region 2j2 of the guide body 2j, and the lid portion 2e is slightly warped toward the back side via the thin wall portion 2d. Has been done.
- the lid body portion 2e is unwound from the tip end portion of the cover member 1 without giving the lid body portion 2e a rotational motion. Even if the replacement core case is inadvertently tilted, it is possible to prevent the replacement core L in the case from popping out and falling.
- FIG. 7 shows a state in which the lid body portion 2e is further extended from the cover member 1 and the lid body portion 2e is fully opened.
- the sliding body 1g slides along the inclined region 2j2 of the guide body 2j as the cover member 1 is fed. Therefore, the lid body portion 2e is given a rotational motion that suddenly warps toward the back surface side via the thin-walled portion 2d.
- the tip portion of the slide protrusion 2m provided along the longitudinal direction of the case body 2 comes into contact with the stopper 1h, and the lid body portion 2e is extended. It will be stopped.
- FIG. 8 and 9 show the appearance configuration of the replacement core case in the fully open state of the lid body portion 2e
- FIG. 9 shows the replacement core L in the case.
- the rear portion of the inclined region 2j2 of the guide body 2j is in contact with the sliding body 1g.
- the 2e can be further arbitrarily warped with a fingertip or the like. Therefore, the required number of replacement cores L can be accurately taken out from the replacement core case.
- the guide body 2j is used, for example, as shown in FIG.
- the return guide portion 2j3 of the above slides on the stopper 1h on the case member 1 side.
- the lid portion 2e in a state of being warped toward the back surface side is housed in the cover member 1 while being returned to a state along the longitudinal direction of the case main body 2.
- the return guide portion 2j3 of the guide body 2j is in contact with the stopper 1h on the case member 1 side, and therefore the lid.
- the body 2e will remain closed.
- the lid body portion 2e When the lid body portion 2e is returned to the inside of the cover member 1 from the fully opened state, it is expropriated in the case between the lid body portion 2e via the thin-walled portion 2d and each leg plate 2b provided on the case portion 2f. Problems such as breaking the replacement core L by sandwiching a part of the replacement core L may occur. However, as shown in FIG. 8, the pair of protective plates 3b formed at the tip of the inner lid 3 are located inside the leg plates 2b of the lid portion 2e and the case portion 2f. It is possible to avoid the problem of breaking the replacement core L.
- FIG. 20 is a partially enlarged view of the portion surrounded by the chain line j in FIG. 14, and a pair of slopes 3g is provided on the inner surface of the fitting convex portion 3a formed in a rectangular shape.
- FIG. 21 is a partially enlarged state in which the back surface of the corner portion of the case body 2 surrounded by the chain line m shown in FIG. 11 is attached to the corner portion of the cover member 1 surrounded by the chain line n shown in FIG. It is a figure.
- the click body 1f formed on the cover member 1 side is formed so as to form a gentle slope along the longitudinal direction, and the slide protrusion 2n on the case body 2 side is formed. Is formed into a trapezoidal shape having a flat surface 2y formed on the top thereof.
- the click body 1f on the cover member 1 side and the slide protrusion 2n on the case body 2 side are both configured to have a gentle slope, so that the case body 2 is slid with respect to the cover member 1. Therefore, it is possible to reduce the feeling of resistance received during operation in a state where the lid portion 2e of the case body 2 protrudes and begins to open. Further, since the slide protrusion 2n on the case body 2 side is formed into a trapezoidal shape having a flat surface 2y formed on the top thereof, it is possible to reduce the overcoming of the drop impact when the replacement core case falls. can.
- the replacement core case of the second embodiment shows the replacement core case of the second embodiment as viewed from the back side, and the portions corresponding to the respective parts in the first embodiment described above are indicated by the same reference numerals. Therefore, the detailed description thereof will be omitted.
- the case body 2 is provided with an operation portion 2x projecting to the outside of the leg plate 2b, and the operation portion 2x is relatively moved with respect to the longitudinal direction of the cover member 1. This is characterized in that it realizes a sliding operation in which the lid body portion 2e of the case body 2 is extended from the tip end portion of the cover member 1.
- the case main body 2 is provided with a pair of operating portions 2x protruding outward in the vicinity of the thin-walled portions 2d of the left and right leg plates 2b. Further, in the vicinity of the tip portions of the left and right outer leg plates 1b of the cover member 1, guide recesses 1q are formed along the left and right outer leg plates 1b in a state where a part of the outer leg plates 1b is cut out. In the guide recess 1q, when the case body 2 is attached to the cover member 1, a pair of operation portions 2x formed on the case body 2 are located, and the operation portions 2x are slidably arranged in the guide recess 1q. It will be.
- the case main body 2 is slidably attached to the cover member 1 with the inner lid 3 attached to the case main body 2.
- 3 is not always necessary and can be omitted.
- the inner lid 3 can be integrally formed by connecting the inner lid 3 to the rear side of the case body 2 via a thin-walled connecting band (not shown). Then, by folding back the thin-walled connecting band and assembling the inner lid 3 to the case body 2, the number of parts can be reduced, which facilitates manufacturing control and lowers the cost. It is possible to provide a replacement core case.
- FIG. 24 is a schematic view showing an example of a method of molding a replacement core case component including the cover member 1 or the case body 2 in the replacement core case, in the order of the steps (A) to (D). Further, FIGS. 25 to 29 show an example of the replacement core case component 11 obtained by this molding method.
- the left and right outer leg plates 1b are integrated on both sides of the front plate 1a, for example, like the cover member 1 constituting a part of the replacement core case already described.
- a replacement core case component having a cross section orthogonal to the longitudinal direction formed in a U shape, and particularly so as to face inward to the left and right outer leg plates 1b of the cover member 1, for example. It is suitable for molding a replacement core case component that integrally molds an inwardly protruding portion 14 such as a case support portion 1d.
- the cover member 1 and the case body 2 described above are referred to as the replacement core case component 11, and the front plate 1a of the cover member 1 and the case body 2 are referred to.
- the back plate 2a is referred to as a main face plate 12.
- the left and right outer leg plates 1b of the cover member 1 and the left and right leg plates 2b of the case body 2 are simply referred to as leg plates 13, and the case support portion 1d and slide protrusions formed inward on the outer leg plates 1b of the cover member 1 are further referred to.
- the 1e, the stopper 1h, and the like will be referred to as an inward protrusion 14.
- FIG. 24 is a schematic view of a resin molding apparatus showing a state of molding the replacement core case component 11 as, for example, the cover member 1 described above.
- This resin molding apparatus includes, for example, a first mold 21 as a movable mold, a second mold 22 equipped with a core pin 23 constituting an isosceles trapezoid, and a first mold 21 with respect to the second mold 22.
- a pair of slide cores 24 that move upward along the core pin 23 in a direction inclined with respect to the mold opening direction, and a protruding pin that moves upward in the same direction as the mold opening direction of the first mold 21 with respect to the second mold 22. 25 and.
- FIG. 24 shows the state after the first mold 21 is opened from the second mold 22.
- the resin injection step prior to this step is performed by injecting resin into the cavity in a state where the first mold 21 is closed in the second mold 22.
- the cavity is formed in the space surrounded by the first mold 21, the second mold 22, the core pin 23, the slide core 24, and the protrusion pin 25 constituting the resin molding apparatus shown in FIG. 24.
- the state shown in FIG. 24B shows an initial state in which the pair of slide cores 24 and the protrusion pins 25 are simultaneously moved in the mold opening direction of the first mold 21. From this initial state, as shown in FIG. 24C, the pair of slide cores 24 and the protruding pins 25 are further raised without changing their relative heights. As a result, the tips of the pair of slide cores 24 move toward the center of the case component 11 so as to approach each other. As a result, the inwardly projecting portion 14 of the case component 11 is released from the recesses 24a provided toward the outside near the tip portion of the slide core 24, and the case component 11 is formed by the tip portion of the protruding pin 25. It will be accepted.
- the slide core 24 is accompanied by an operation of moving toward the central portion side of the replacement core case component 11.
- the inwardly projecting portion 14 integrally molded with the replacement core case component 11 is reasonably released from the slide core 24 and is received by the protrusion pin 25. Therefore, the replacement core case component 11 having the inward protrusion 14 can be released without relying on forcible removal, and the replacement core case component 11 that prevents deformation of the inward protrusion 14 due to forcible removal can be obtained. Can be done.
- 25 to 29 show an example of the replacement core case component 11 obtained by the above-mentioned molding method, which corresponds to the cover member 1 already described.
- the inner bottom surface 12a of the main face plate 12 sandwiched between the left and right leg plates 13 has a large and small rectangular first step portion 16 having a step due to protrusion molding with respect to the inner bottom surface 12a. It is formed at six locations along the left and right leg plate 13 sides excluding the central portion in the longitudinal direction of the inner bottom surface 12a.
- a second step portion 17 having a step due to protrusion molding with respect to the inner side surface 13a is provided on the first step portion 16 described above. It is formed continuously. Further, the inner bottom surface 12a of the main surface plate 12 sandwiched between the left and right leg plates 13 is recessed with respect to the third step portion 18, that is, the inner bottom surface 12a, which has a different uneven direction from the first step portion 16.
- the semi-cylindrical third step portion 18 is formed at four positions separated from the first step portion.
- the inner bottom surface 12a of the case component 11 is formed by the top surface of the core pin 23 shown in FIG. 24. Further, the first step portion 16 is formed by the upper end surfaces of the pair of slide cores 24. Further, the second step portion 17 is formed by planar recessed portions (not shown) provided on both outer sides of the upper end portion of the core pin 23. Then, the third step portion 18 is formed by the upper end surface of the protrusion pin 25.
- the case component 11 shown in FIGS. 25 to 29 since the first step portion 16 is projected and molded with respect to the inner bottom surface 12a, the case component 11 slides when it is released from the slide core.
- the upper end of the core 24 slides along the surface of the first step 16. Therefore, it is possible to prevent the occurrence of product defects such as scratches on the inner bottom surface 12a of the case component 11 due to the movement of the slide core 24 due to the release of the mold.
- the above-mentioned third step portion 18 of the case component 11 is recessed with respect to the inner bottom surface 12a, and therefore, the case component 11 released from the slide core 24 is recessed. It can be received in a stable posture by the protruding pin 25 in the step portion 18.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ceramic Engineering (AREA)
- Casings For Electric Apparatus (AREA)
- Rigid Containers With Two Or More Constituent Elements (AREA)
- Cartons (AREA)
- Vehicle Step Arrangements And Article Storage (AREA)
- Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
Abstract
Description
例えば特許文献1に開示された替芯ケースは、樹脂素材によるケース本体と、樹脂素材による蓋体との二部品により構成されており、前記蓋体は替芯ケースの長手方向に直交する方向にスライドさせることで、ケース本体の開口部(替芯の取出し口)が開放される。
この場合、ケース開口部に対する蓋体のスライド位置が、例えば2段階に設定できるように構成されており、これにより、ユーザは替芯を取り出すのに適した広さの開口を設定することができる。
ケース本体に形成された前記開口部(替芯の取出し口)は、前面側において斜めにカットされており、これにより、ユーザは替芯を指先で摘むことができるように構成され、使い易い替芯ケースを実現させている。
これによると、ケース本体の傾きを調整しつつ、ケース本体を揺り動かすなどの微妙な操作が要求される。このために、必要以上の替芯、あるいはケース本体内の全ての替芯が取出し口から飛び出して、床面に散乱することもあり、床面に散乱した替芯を拾い戻す作業が強いられる場合も発生する。
したがって、薄肉部による蓋体部の回動動作により、替芯の先端部がケース部から突出した状態で露出されるので、必要とする替芯を容易に取り出すことができる。
これによると、替芯の取り出し口を下向きにすることなく、替芯を取り出すことができるので、多量の替芯がケース本体側から同時に飛び出すなどの従来のものの問題点を解消した替芯ケースを提供することができる。
これによると、ケース本体と内蓋とが二部品で形成されるので、一部品により対向する内面に突起をそれぞれ形成させる場合に比較して、離型において対向する突起を無理抜きにより損傷を与える問題を避けることができる。
なお、図1~図21は第1実施形態の替芯ケースを示しており、図22~図23は第2実施形態の替芯ケースを示している。さらに図24~図29は、替芯ケース部品の成形方法と、得られる替芯ケースの例について示している。
先ずは図1~図21に基づいて第1実施形態の替芯ケースについて説明する。
図1および図2は、替芯ケースの全体構成をカバー部材1の表面側から見た状態およびケース本体2の裏面側から見た状態で示している。
この実施の形態においては、前記カバー部材1およびケース本体2は、樹脂素材により成形されており、また後述するケース本体2に取り付けられて、前記カバー部材1により覆われる内蓋3も、同様に樹脂素材により成形されている。そして、カバー部材1に対してケース本体2および内蓋3が、長手方向に沿ってスライド可能にカバー部材1に取り付けられ替芯ケースが構成されている。
なお、以下においては、ケース本体2の後述する蓋体部2eがカバー部材1から繰り出される長手方向の一方を、説明の便宜上先端部と称し、他方を後部と称することにする。
図10~図12は、ケース本体2を示しており、このケース本体2は、背面板2aと左右の脚板2bとにより、長手方向に直交する断面がコ字状に成形され、コ字状に囲まれた内側空間に替芯収容室2cを形成している。
そして、蓋体部2eには左右の脚板2bを連結して、蓋体部2eの先端部を塞ぐ閉塞板2gが形成されると共に、ケース部2fの後部には左右の脚板2bを連結して、ケース部2fの後部を塞ぐ後部閉塞板2hが形成されている。
なお、このガイド体2jの前記した平行領域2j1と傾斜領域2j2は、後で説明するカバー部材1の先端部から、ケース本体2の蓋体部2eを繰り出すスライド動作に伴い、カバー部材1側に備えられた摺動体1gに摺接することで、前記した薄肉部2dを介して、前記蓋体部2eに対して背面側に反らせる回動動作を与えるように作用する。
また、ケース部2fにおける左右の脚板2bの両外側には、ケース本体2の長手方向に沿って一対のスライド突起2mが形成されている。このスライド突起2mは、カバー部材1に設けられる後述するケース支持部1dに係止して、ケース本体2が長手方向にスライド可能に支持されるように作用する。
さらに、ケース部2fの背面板2aにおける替芯収容室2c側の内面には、収容された替芯との面接触を避ける複数本の突起2pが、ケース本体2の長手方向に直交するように形成されている。これは樹脂素材により形成されたケース本体2の替芯収容室2cの内面において、替芯Lが静電気で吸着されて張り付くのを避ける作用を果たす。
前記矢印マーク2sは、カバー部材1に対するケース本体2側のスライド方向を示しており、突起群2rはスライド操作における指先の滑り止めとして機能するものとなる。
また、前記ケース部2fの前端部側と後端部側の傾斜突起2uに接近して、左右の脚板2bの内面に、山状突起2vがそれぞれ対向するようにして形成されている。
さらに、ケース本体2の蓋体部2e側にも、左右の脚板2bの内側にリブ状突起2wがそれぞれ対向するようにして形成されている。
すなわち、この替芯ケースを前記した自動機を利用して組み立てるには、水平面上に配置されたケース本体2の替芯収容室2cに、その長手方向に合わせて所定数の替芯Lを投入し、この状態のケース本体2の上から内蓋3を押し付けて、ケース本体2に内蓋3を嵌合させる工程が伴われる。そして、内蓋3を覆うようにしてカバー部材1が、その上部に装着されることで、カバー部材1の外側脚板1bの内側にケース本体2の脚板2bが収容されて、カバー部材1に対してケース本体2がスライド可能に支持され、替芯ケースとしての商品が組み上げられる。
これは、ケース本体2に内蓋3を嵌合させる工程において、内蓋3に形成された左右一対の保護板3bが、替芯収容室2c内に投入された替芯Lの先端部を挟み込むのを防止させるものである。これにより替芯Lの折損を防止して、替芯ケースとしての商品の不良の発生を阻止することができる。
この内蓋3は、偏平状に形成されて長手方向の中央部と先端部付近に、それぞれ矩形状に形成された嵌合凸部3aが形成されている。この嵌合凸部3aは、ケース本体2に形成された内蓋嵌合凹部2k内に嵌め込まれて、内蓋3とケース本体2とが位置決めされ、ケース本体2の替芯収容室2cを前面側で覆うようにして取り付けられる。
これにより、発明の効果の欄に記載したとおり、スライド動作により繰り出された蓋体部2eを、カバー部材1内に戻す際に、背面側に反った蓋体部2e側の脚板2bと、ケース部2f側の脚板2bとの間に、替芯Lが挟み込まれる問題を、効果的に解消させることができる。
さらに、内蓋3の内面には、複数本の突起3dが内蓋3の長手方向に直交する方向に形成されている。これは、ケース部2fの替芯収容室2cを前面から覆う樹脂製の内蓋3において、替芯Lとの面接触を避けるものであり、替芯Lが静電気で吸着されて内蓋3に張り付くのを避けるものとなる。
このストッパー3eは、前記したケース本体2に対して、内蓋3を取り付けた状態において、ケース本体2と内蓋3の後端部との間に生ずる隙間の直前に位置して、替芯収容室2cに収容された替芯Lが、替芯ケースから漏れ出るのを防ぐように作用する。
したがって、内蓋3が前記したケース本体2に取り付けられた状態においては、内蓋3の外面に2本のスライド用リブ3fが位置するものとなる。これにより、2本のスライド用リブ3fは、カバー部材1の内底面1mに形成された後述する梨地面に対して、スライド用リブ3fが長手方向に沿って摺動し、適切な接触抵抗が得られるように作用する。
そして、スライド動作により、カバー部材1の先端部側からケース本体2の前記蓋体部2eが繰り出されるように構成されている。
そして、左右の外側脚板1bの後部寄りの内側には、一対のスライド突起1eが向かい合うように形成されている。これはケース本体2に形成したリブ状のクリック突起2nが前方に乗り越えることで、ケース本体2を開き状態にする際にクリック作用を発生させるものとなる。
さらに、外側脚板1bの後部側の内側には、一対のクリック体1fが向かい合うようにして形成されており、このクリック体1fは、ケース本体2をスライド動作させる際に、ケース本体2に形成したリブ状のクリック突起2nが後方に乗り越えることで、クリック作用を発生させるものとなる。
また、この一対のストッパー1hは、ケース本体2をカバー部材1内に引き戻すスライド動作において、ガイド体2jの戻しガイド部2j3に接して、背面側に反った状態の蓋体部2eを、ケース本体2の長手方向に沿う状態に戻す役割も果たす。その動作については、図4~図7等に基づいて後で説明する。
この場合、カバー部材1の内底面1mに形成される梨地面は、その算術平均粗さ(Ra)は、5μm~50μmの範囲とすることが好ましい。その値が5μmより小さい場合、表面が鏡面に近くなり、接触抵抗が大きくなり、内蓋3との摺動が円滑にスライドすることができなくなるおそれがある。一方、その値が50μmより大きい場合、離型が困難になり又十分な金型表面(梨地面)転写性が得られなくなる。なお、良好な離型性や金型表面転写性が得られる点で、算術平均粗さ(Ra)は、10μm~25μmの範囲にあることが、より一層好ましい。
梨地面の算術平均粗さ(Ra)は、JIS B0601:1982で定義されている算術平均粗さ(Ra)を指すものである。またその際の表面粗さの測定は、(ミツトヨ社製の機種名SJ-301)が使用されている。
また、カバーと本体との抜け力を15N以上とすることにより、本体からカバーを容易に外すことができなくなり部品の脱落が防止できる。
この窪み1kと、前記したケース本体2側の線状の突起群2rは、カバー部材1に対してケース本体2をスライドして操作することに際して、この窪み1kに例えば親指を当てると共に、ケース本体2側の線状の突起群2rに例えば人指し指を当てて相対的にスライドさせることで、そのスライド動作を円滑になし得ることができる。
これによると、ケース本体2を成形する樹脂色を、この替芯ケースに収容される替芯Lの芯色とほぼ同色に合わせることで、替芯ケースに収容された芯色を、閉塞板2gの着色によってユーザに識別させることもできる。
図3は、内蓋3を取り付けたケース本体2を、カバー部材1に収容した状態の中央断面図(図2のa-a線より見た断面図)であり、図4は、このときの蓋体部2eに形成された一方のガイド体2j部分に沿った断面図(図2のb-b線より見た断面図)である。
カバー部材1に対して、ケース本体2が収容された図4に示す状態においては、カバー部材1のストッパー1hが、ガイド体2jの戻しガイド部2j3に当接しており、したがって、蓋体部2eはカバー部材1の長手方向に沿って、閉じた状態を維持する。
なお、図6に示す状態は、摺動体1gはガイド体2jの傾斜領域2j2に僅かに接しており、これに伴い蓋体部2eは、薄肉部2dを介して背面側に僅かに反った状態になされている。
そして、蓋体部2eが全開した図7に示す状態においては、ケース本体2の長手方向に沿って設けられたスライド突起2mの先端部が、ストッパー1hに当接して蓋体部2eの繰り出しは停止される。
蓋体部2eの全開状態においては、図7に示すように摺動体1gには、ガイド体2jの傾斜領域2j2の後部が接しており、この状態においては、薄肉部2dを介して蓋体部2eを、指先等でさらに任意に反らせることができる。
したがって、替芯ケースから必要な数の替芯Lを正確に取り出すことができる。
そして、蓋体部2eがカバー部材1内に全て収容された図4に示す状態においては、ガイド体2jの戻しガイド部2j3が、ケース部材1側のストッパー1hに当接しており、したがって、蓋体部2eは閉じた状態を維持することになる。
しかし、図8に示されているように、内蓋3の先端部に形成された一対の保護板3bが、蓋体部2eとケース部2fの各脚板2bの内側に位置するので、前記した替芯Lを折損させる問題を回避することができる。
前記した嵌合凸部3aに一対の斜面3gが施されることにより、ケース本体2に対する内蓋3の組立時の長手方向への位置ずれをより効果的に阻止することができる。
この図21に示されているように、カバー部材1側に形成されたクリック体1fは、長手方向に沿って緩やかな斜面を構成するように形成されると共に、ケース本体2側のスライド突起2nには、その頂部に平坦面2yを形成した台形状に成形されている。
また、ケース本体2側のスライド突起2nには、その頂部に平坦面2yを形成した台形状に成形されているので、替芯ケースが落下した場合において、落下衝撃の乗り越えの軽減を図ることができる。
この第2実施形態の替芯ケースにおいては、ケース本体2には、脚板2bの外側に突出する操作部2xが設けられ、カバー部材1の長手方向に対して、前記操作部2xを相対移動させることで、前記カバー部材1の先端部から前記ケース本体2の蓋体部2eを繰り出すスライド動作を実現させる点に特徴を有する。
また、カバー部材1における左右の外側脚板1bの先端部付近には、左右の外側脚板1bに沿って案内凹部1qが、それぞれ外側脚板1bの一部を切り欠いた状態で形成されている。この案内凹部1qは、カバー部材1にケース本体2を取り付けた状態において、ケース本体2に形成された一対の操作部2xが位置して、この操作部2xが案内凹部1qにおいてスライド可能に配置されるものとなる。
また内蓋3を用いる場合においては、図示せぬ薄肉状の連結帯を介してケース本体2の後部側に内蓋3連結して一体成形することができる。そして、薄肉状の連結帯を折り返して、ケース本体2に内蓋3を組み付けることで、部品数の削減が可能であり、これにより製造上の管理を容易にすると共に、より低コスト化も可能な替芯ケースを提供することができる。
先ず、図24に示した替芯ケース部品11の成形方法は、すでに説明した替芯ケースの一部を構成する例えばカバー部材1のように、前面板1aの両側に左右の外側脚板1bを一体に備えることで、長手方向に直交する断面がコ字状に成形された替芯ケース部品の成形に適するものであり、特にカバー部材1の左右の外側脚板1bに内向きとなるように、例えばケース支持部1dなどの内方突出部14を一体成形する替芯ケース部品の成形に適する。
この樹脂成形装置は、例えば可動金型としての第1金型21と、等脚台形を構成するコアピン23を搭載した第2金型22と、前記第2金型22に対する第1金型21の型開き方向に対して傾斜した方向に前記コアピン23に沿って上昇移動する一対のスライドコア24と、第2金型22に対する第1金型21の型開き方向と同方向に上昇移動する突き出しピン25とを備える。
この場合、前記キャビティは図24に示す樹脂成形装置を構成する第1金型21、第2金型22、コアピン23、スライドコア24、突き出しピン25によって囲まれた空間内に形成されることになる。
この初期の状態から、図24(C)に示すように一対のスライドコア24および突き出しピン25は、両者の相対高さが変わらないままさらに上昇する。これにより一対のスライドコア24の先端部は、ケース部品11の中央部側に向かって、互い接近するように移動する。
これにより、スライドコア24の先端部付近の外側に向かってそれぞれ施された凹部24aから、ケース部品11の内方突出部14が離型して、ケース部品11は前記突き出しピン25の先端部によって受け止められる。
したがって、内方突出部14を有する替芯ケース部品11は、無理抜きに頼ることなく離型が可能であり、無理抜きによる内方突出部14の変形を防いだ替芯ケース部品11を得ることができる。
このケース部品11においては、左右の脚板13で挟まれた主面板12の内底面12aには、内底面12aに対して突出成形による段差を有する大小の矩形状の第1の段部16が、前記内底面12aの長手方向の中央部を除いた左右の脚板13側に沿って、6か所において形成されている。
さらに、左右の脚板13で挟まれた主面板12の内底面12aには、第1の段部16とは凹凸方向が異なる第3の段部18、すなわち内底面12aに対して凹み成形されたカマボコ形の第3の段部18が、前記第1の段部から外れた位置の4か所において形成されている。
さらに、第2の段部17は、前記コアピン23における上端部の両外側に施された平面状の凹み部(図示せず)によって成形される。そして、第3の段部18は、突き出しピン25の上端面によって成形されることになる。
また、ケース部品11の前記した第3の段部18は、内底面12aに対して凹み成形されており、したがって、スライドコア24から離型されたケース部品11は、凹み成形された第3の段部18内の突き出しピン25によって、安定した姿勢で受け取ることができる。
1a 前面板
1b 外側脚板
1d ケース支持部
1g 摺動体
1h ストッパー
1k 窪み
1m 内底面(梨地面)
1q 案内凹部
2 ケース本体
2a 背面板
2b 脚板
2c 替芯収容室
2d 薄肉部
2e 蓋体部
2f ケース部
2g 閉塞板
2j ガイド体
2j1 平行領域
2j2 傾斜領域
2j3 戻しガイド部
2m スライド突起
2p 突起(芯張り付き防止突起)
2r 突起群
2x 操作部
3 内蓋
3b 保護板
3d 突起(芯張り付き防止突起)
3f スライド用リブ
L 替芯
11 替芯ケース部品
12 主面板
12a 内底面
13 脚板
13a 内側面
14 内方突出部
16 第1の段部
17 第2の段部
18 第3の段部
Claims (11)
- 背面板と左右の脚板とにより囲まれた内側空間を替芯収容室にすると共に、前記背面板の長手方向の先端部近傍に施した屈曲可能な薄肉部を介して、先端部側に蓋体部を、後部側にケース部を形成したケース本体と、
前面板と左右の外側脚板とにより、長手方向に直交する断面がコ字状に成形され、前記ケース本体側の替芯収容室を前記前面板で覆うと共に、前記外側脚板の内側に、前記ケース本体の脚板を位置させて、ケース本体を長手方向にスライド可能に支持したカバー部材とを備え、
前記蓋体部における少なくとも一方の脚板と、この脚板を覆うカバー部材側の外側脚板とのいずれか一方には、前記長手方向に沿ってガイド体が形成されると共に、いずれか他方には前記ガイド体に接する摺動体が形成され、
前記カバー部材の先端部から前記ケース本体の蓋体部を繰り出すスライド動作に伴い、前記ガイド体に対する前記摺動体の摺接により、前記薄肉部を介して前記蓋体部を背面側に反らせる回動動作を与えることを特徴とする替芯ケース。 - 前記ケース本体の左右の脚板に取り付けられて、前記替芯収容室を前面側で覆う内蓋がさらに備えられ、前記ケース本体の背面板における前記替芯収容室側の内面および前記内蓋の替芯収容室側の内面には、収容された替芯との面接触を避ける突起がそれぞれ施されていることを特徴とする請求項1に記載の替芯ケース。
- 前記ガイド体は、前記蓋体部の脚板の外側において、長手方向に沿って延びるレール状に突出した状態で形成されると共に、
前記摺動体は、前記スライド動作により前記蓋体部が繰り出されるカバー部材の先端部において、前記ガイド体に接するように突出して形成され、
前記ガイド体には、前記先端部から前記薄肉部側に向かって、前記背面板に対して離れる傾斜領域を形成することで、前記スライド動作に伴い、前記薄肉部を介して前記蓋体部を背面側に反らせる回動動作を与えることを特徴とする請求項1に記載の替芯ケース。 - 前記蓋体部の先端部には、左右の前記脚板を連結して前記先端部を塞ぐ閉塞板が形成され、前記蓋体部を前記カバー部材に収容し、前記カバー部材の前記前面板を正面視した状態で、前記カバー部材の先端部に前記閉塞板が視認可能に配置されている請求項1に記載の替芯ケース。
- 前記ケース本体とカバー部材は共に樹脂素材により形成され、前記ケース本体の背面板の裏面には、長手方向に直交する方向に配列された多数の線状の突起群が形成され、前記カバー部材の前面板の表面には、窪みが形成されている請求項1に記載の替芯ケース。
- 前記内蓋の外面にスライド用リブが内蓋の長手方向に沿って形成されていると共に、前記カバー部材の内底面が梨地面であることを特徴とする請求項2に記載の替芯ケース。
- 前記ケース本体には、前記脚板の外側に突出する操作部が設けられ、前記カバー部材の長手方向に対して、前記操作部を相対移動させることで、前記カバー部材の先端部から前記ケース本体の蓋体部を繰り出すスライド動作を実現させることを特徴とする請求項1に記載の替芯ケース。
- 主面板の両側に左右の脚板を一体に備えることで、長手方向に直交する断面がコ字状に成形され、前記左右の脚板に対して内向きとなるように内方突出部を、前記脚板に一体に形成してなる部材を、一つの替芯ケース部品として用いた替芯ケースであって、
前記替芯ケース部品の左右の脚板で挟まれた前記主面板の内底面には、前記内底面に対して段差を有する第1の段部が、前記内底面の長手方向の中央部を除いた左右の脚板側に沿って形成されていることを特徴とする替芯ケース。 - 前記左右の脚板の対向する内側面には、前記内側面に対して段差を有する第2の段部が、前記第1の段部に連続して形成されていることを特徴とする請求項8に記載の替芯ケース。
- 前記左右の脚板で挟まれた前記主面板の内底面には、前記第1の段部とは凹凸方向が異なる第3の段部が、前記第1の段部から外れた位置に形成されていることを特徴とする請求項9に記載の替芯ケース。
- 前記第1の段部は、前記内底面に対して突出成形され、前記第3の段部は、前記内底面に対して凹み成形されている請求項10に記載の替芯ケース。
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