JP3148293U - clip - Google Patents

Abstract

Provided is a clip that eliminates the need for assembling a plurality of parts and eliminates the drop-out / failure of the parts. A basic structure having the appearance of a resin-made one piece (one body) having no parts and comprising a gripping part (A1 and A2), a fulcrum part (B), and a shed part (C1 and C2). When the load force (F1) is applied to the gripping portions (A1 and A2), the gripping portions (A1 and A2) configured to include the plastic resin have the heel portion (C1) with the fulcrum portion (B) as the center. And C2) turn in the opening direction, and the fulcrum part (B) configured to contain the elastomer resin is deformed by rubber elasticity to exhibit a function as a hinge, and the mouth part (C1 and C2) is a clip. The internal clamping force (F3) exhibits a function of continuously sandwiching the object to be clamped, and a rubber elastic property and a friction characteristic exhibit a function of holding the object softly without slipping. [Selection] Figure 1

Description

  The present invention relates to a clip for sandwiching documents (paper, cards, etc.), laundry, clothing, etc., and more particularly, to a clip having the appearance of a resin one piece (one body) having no parts. The clip manufacturing method according to the present invention is not particularly limited, but an integral molding method is preferably employed.

Clips are generally used as daily necessities for home and office use.
At home, it holds a clip as a clothespin that sandwiches laundry, a clip for fixing clothes in the closet to a hanger or coat, foods that are likely to get moisture or insects such as snacks It is widely used as a clip for closing the mouth of a plastic bag and a clip for sandwiching documents in an office.

The clip in the conventional technique has at least the following eight technical problems (1) to (8).
(1) Since it is assembled from multiple parts, the parts may fall off, break down, and be fragile.
(2) Although metal parts are used in at least some of the components, it may cause injury or give a sense of fear or pressure when used.
(3) Since hard materials such as metal parts and hard plastic parts are used for at least some of the components, pinching objects, pinching marks, pinching rust stains will be attached to the object to be pinched. There is a case.
(4) Although metal parts are used for at least some of the components, it may be difficult to reduce the weight, save space, and make the equipment compact.
(5) Although spring components with high (strong) spring elasticity (metal springs, springs made of high-elasticity plastic material, etc.) are used, excessive force is required for opening and closing operations (children, elderly people) Children with physical and mental disabilities (persons), women, etc.) may have difficulty or fatigue in use.
(6) Adopt fashionable, stylish and highly flexible design / coloring / design / function because it is assembled from multiple parts or metal parts are used for at least some of the components. May be difficult.
(7) Although spring components with high (strong) spring elasticity (metal springs, springs made of high-elasticity plastic materials, etc.) are used, repeated opening and closing operations cause sudden fatigue due to metal fatigue and stress concentration. The spring may break or break.
(8) Since the material having a low coefficient of friction such as metal parts and hard plastic is used for the mouth part (clamping part), the object to be clamped may slip off from the mouth part (clamping part).
However, in the prior art, there has been no clip that has solved all these eight technical problems.

[Patent Document 1 (Japanese Patent Laid-Open No. 2001-88482)]
Patent Document 1 (Japanese Patent Application Laid-Open No. 2001-88482) discloses a typical clip in the prior art assembled from a plurality of parts.
Regarding the clip, it is considered that it is difficult to say that all the eight technical problems described above have been solved.
Japanese Patent Laid-Open No. 2001-88482 discloses a clip that can be easily assembled and can reduce manufacturing costs. In this clip, the protrusion (11e) at the tip of the shaft portion (11c) of one clip piece (11) is loosely fitted to the concave surface (11f) at the tip of the shaft portion (11d) of the other clip piece (11). It has a structure in which the bottom of the piece (11) is grasped and pressed.
By adopting such a structure, both the clip pieces (11) face each other, and the large-diameter groove (11h), the small-diameter groove (11i), and the cylindrical portion (11j) of both the clip pieces (11) face each other at a predetermined interval. Therefore, in this state, both ends of the pin-shaped spring (12) can be expanded to a predetermined interval by a jig, and can be directly inserted into the hole (11k) from the large-diameter groove (11h).
Thereby, while a pair of clip piece (11) is connected with a pair of spring (12) so that rotation is possible about the front-end | tip part of an axial part (11c, 11d), the base of both clip pieces (11) is connected. They are pressed against each other by the force of the spring (12).
Therefore, when assembling the clip, both clip pieces can be positioned and fixed by fitting the projection and concave surface without using a clip holding jig, and can be assembled simply by using a spring holding jig. As a result, the assembly work is simplified and the manufacturing cost can be reduced.
In addition, even when using a jig to hold the clip piece, both clip pieces can be positioned by fitting the protrusion of one clip piece into the recess of the other clip piece, which simplifies the structure of the jig. The clip piece can be easily attached to the jig.

[Patent Document 2 (No. 3098764)]
Patent Document 2 (Act No. 3098764) discloses a clip having the appearance of a one-piece resin piece (one body) having no parts. However, the resin one-piece (one body) type clip without components disclosed in Patent Document 2 and Patent Document 3 is made of polycarbonate. Polycarbonate is an engineering plastic that is extremely excellent in impact resistance, transparency, and high elasticity used in safety caps (helmets) and automobile headlamp lenses. Therefore, among the above eight technical issues, the following (1), (2) and (6) have been solved, but (3), (4), (5) (7) and ( Regarding 8), it seems difficult to say that it has been solved.
In actual No. 3098764, plastics such as polycarbonate are integrally molded, and binding portions (22, 23) are provided at the lower ends of the two sides of the clip (2) so that the lower portions of the clip portions face each other. Opening outward (24), a groove (25) is provided on the inner surface of the binding portion (22) on one side thereof, and a protrusion (26) is provided on the inner surface of the binding portion (23) on the other side. There is disclosed a clip having a structure in which the groove and the projection are in contact with each other by meshing the surfaces with each other.
The clip has a strong binding force, is lightweight, has a high productivity, reduces costs, and can be reused, thereby providing environmental protection.

[Patent Document 3 (Act No. 3098765)]
Patent Document 3 (Act No. 3098765) discloses a clip having the appearance of one piece (one body) made of resin without any parts. However, the resin one-piece (one body) type clip without components disclosed in Patent Document 2 and Patent Document 3 is made of polycarbonate. Polycarbonate is an engineering plastic that is extremely excellent in impact resistance, transparency, and high elasticity used in safety caps (helmets) and automobile headlamp lenses. Therefore, among the above eight technical issues, the following (1), (2) and (6) have been solved, but (3), (4), (5) (7) and ( Regarding 8), it seems difficult to say that it has been solved.
In actual No. 3098765, it is mainly made of plastic integrally formed of polycarbonate, and a binding portion is provided at the lower end of the two sides of the clip, and the lower portion of the binding portion is opened outward relative to each other. A groove is provided on the inner surface of the section, and a protrusion is formed on the inner surface of the binding portion on the opposite side. The groove and the protrusion are in contact with each other by engaging the surface and the surface. A polycarbonate clip is disclosed which has improved the binding force of documents by securing the contact area of the part.
The clip has a strong binding force, is lightweight, has a high productivity, reduces costs, and can be reused, thereby providing environmental protection.

[Patent Document 4 (Japanese Patent Laid-Open No. 2003-237269)]
Patent Document 4 (Japanese Patent Application Laid-Open No. 2003-237269) also discloses a clip having the appearance of a resin one piece (one body) having no parts. However, these publications do not disclose feasible requirements (molding method, molding conditions (mold temperature, molding cycle, etc.), synthetic resin type / formulation, examples, etc.), and technical content. Is vague. From the disclosed technical contents, among the above eight technical problems, the following (1) to (4) and (6) have been solved, but (5), (7) and (8 ) Is not necessarily resolved.
In JP-A-2003-237269, a pair of U-shaped sandwiching pieces (1, 1) are connected at both end bases (3) to face each other, and the tip portions (2) of the both sandwiching pieces (1). From the middle, a clip is disclosed which consists of a pair of gripping pieces (4, 4) attached towards the base (3).
The sandwiching piece (1) has a U-shaped notch, and the pair of gripping pieces (4, 4) are opposed to each other so as to pass through the center part of the notch. Therefore, regardless of the thickness of the base portion (3), the pair of gripping pieces (4) can be brought close to each other to reduce the thickness of the clip.
Moreover, the excessive opening | release of a front-end | tip part (2) can be prevented by contact of a pair of holding piece (4, 4).
On the other hand, at the time of manufacture, the sandwiching pieces (1) are cast in parallel so that they can be easily removed from the mold, and the tips of the pair of sandwiching pieces (1, 1) are brought closer to each other by utilizing the natural shrinkage of the material after die cutting.
The clip has the effect of thinning the clip by improving the shape of the sandwiching piece that is a member constituting the clip and the gripping piece connected thereto, and can prevent fatigue of the sandwiching piece due to an unnecessarily excessive opening operation. There is an effect.
In addition, when the synthetic resin is integrally formed, it is possible to form a tip shape that is difficult to mold by natural shrinkage when the material is cured, and the manufacturing process is facilitated.

[Patent Document 5 (Japanese Patent Laid-Open No. 2000-351292)]
Patent Document 5 (Japanese Patent Laid-Open No. 2000-351292) also discloses a clip having the appearance of a one-piece resin piece (one body) having no parts. However, these publications do not disclose feasible requirements (molding method, molding conditions (mold temperature, molding cycle, etc.), synthetic resin type / formulation, examples, etc.), and technical content. Is vague. From the disclosed technical contents, among the above eight technical problems, the following (1) to (4) and (6) have been solved, but (5), (7) and (8 ) Is not necessarily resolved.
Japanese Patent Application Laid-Open No. 2000-351292 discloses a clip that is easy to handle, has a high holding power of an object, can prevent damage to the object, and is easy to manufacture and inexpensive.
The clip is for sandwiching an object, and a pair of arm parts supported to be relatively tiltable by an intermediate support part so as to sandwich the object at the tip, and each of the arm parts. A metal received in a gap defined between the intermediate support portion and the front end sides of both arms to urge the support portions supported by the intermediate portions and the front ends of the arm portions in a direction approaching each other. And the metal spring is urged in the direction in which the two sides facing each other are close to each other by the elasticity of the plate and the substantially parallel metal plates are opposed to each other in parallel. It is characterized by comprising a metal clip bent into a metal.
As is clear from the above description, according to the clip of the present invention, the metal clip is received as a spring in the resin clip that supports the pair of arms so as to be tiltable, thereby ensuring a high holding force of the object. However, damage to the object can be prevented, handling is easy, the structure is simple, manufacturing is easy, and the cost is low.

JP 2001-88482 A Noto 3098764 Noto 3098765 gazette JP 2003-237269 A JP 2000-351292 A

The problem to be solved by the present invention is to simultaneously solve at least the following eight technical problems (1) to (8).
(1) Since it is assembled from multiple parts, the parts may fall off, break down, and be fragile.
(2) Although metal parts are used in at least some of the components, it may cause injury or give a sense of fear or pressure when used.
(3) Since hard materials such as metal parts and hard plastic parts are used for at least some of the components, pinching objects, pinching marks, pinching rust stains will be attached to the object to be pinched. There is a case.
(4) Although metal parts are used for at least some of the components, it may be difficult to reduce the weight, save space, and make the equipment compact.
(5) Although spring components with high (strong) spring elasticity (metal springs, springs made of high-elasticity plastic material, etc.) are used, excessive force is required for opening and closing operations (children, elderly people) Children with physical and mental disabilities (persons), women, etc.) may have difficulty or fatigue in use.
(6) Adopt fashionable, stylish and highly flexible design / coloring / design / function because it is assembled from multiple parts or metal parts are used for at least some of the components. May be difficult.
(7) Although spring components with high (strong) spring elasticity (metal springs, springs made of high-elasticity plastic materials, etc.) are used, repeated opening and closing operations cause sudden fatigue due to metal fatigue and stress concentration. The spring may break or break.
(8) Since the material having a low coefficient of friction such as metal parts and hard plastic is used for the mouth part (clamping part), the object to be clamped may slip off from the mouth part (clamping part).

[Claim 1] As an appearance, it has the appearance of a resin one piece (one body) without parts,
As a basic structure, it has a basic structure including two gripping parts (A1 and A2), one fulcrum part (B), and two shed parts (C1 and C2),
When a load force (F1) from the outside of the clip is applied to the grip portion (A1 and A2),
The gripping parts (A1 and A2) configured to include a plastic resin exhibit a function of turning in a direction in which the hook part (C1 and C2) is opened around the fulcrum part (B) as a lever without bending or buckling. And
The fulcrum part (B) configured to contain the elastomer resin is deformed by rubber elasticity and exhibits a function as a hinge.
The mouth portion (C1 and C2) configured to include an elastomer resin exhibits a function of opening according to the principle of insulator,
When the load force (F1) from the outside of the clip is reduced by the gripping parts (A1 and A2),
Due to the restoring force (F2) from the inside of the clip,
The gripping parts (A1 and A2) configured to include the plastic resin exhibit a function of turning in the direction in which the hook part (C1 and C2) closes around the fulcrum part (B) as a lever without bending or buckling. And
The fulcrum part (B) configured to contain the elastomer resin is deformed by rubber elasticity and exhibits a function as a hinge.
The mouth portion (C1 and C2) configured to contain an elastomer resin exhibits a function of closing according to the principle of insulator,
When the load (F1) from the outside of the clip is removed by the gripping parts (A1 and A2),
The mouth portion (C1 and C2) configured to include an elastomer resin exhibits a function of continuously sandwiching the object to be sandwiched by the clamping force (F3) from the inside of the clip,
When the object to be clamped is sandwiched between the mouth portions (C1 and C2),
A clip that exhibits a function of softly sandwiching an object to be sandwiched without slipping down due to rubber elastic characteristics and frictional characteristics of the mouth opening (C1 and C2) configured to include an elastomer resin.

[Claim 2] “Basic structure including two gripping portions (A1 and A2), one fulcrum portion (B), and two shed portions (C1 and C2)”
“It is configured to include two gripping portions (A1 and A2), one fulcrum portion (B), and two shed portions (C1 and C2), and a plastic resin as a core portion and a shell portion (skin Part) is a basic structure having a core / shell (core / skin) structure including an elastomer resin.
The clip according to claim 1, wherein

[Claim 3] “Basic structure including two gripping portions (A1 and A2), one fulcrum portion (B), and two shed portions (C1 and C2)”
“It is composed of two gripping parts (A1 and A2), one fulcrum part (B), and two throat parts (C1 and C2), and the plastic resin is the surface member and the elastomer resin is the core. Basic structure having a sandwich structure including members "
The clip according to claim 1, wherein

[Claim 4] “As an appearance, it has the appearance of a one-piece resin piece (one body) without parts”
“As an external appearance, it has the appearance of a single piece of resin without a part, and also has an internal structure of a single piece of resin without a part”
The clip according to claim 1, wherein

[Claim 5] The clip according to any one of claims 1 to 4, wherein the elastomer resin and / or the plastic resin is a silicone resin.

[Claim 6] The clip according to any one of claims 1 to 5, wherein the plastic resin is a polycarbonate resin and / or a silicone resin.

In contrast to general clips (office clips, clothespins, etc.) made up of a plurality of parts, the clip according to the present application is a one-piece in appearance.
The clip according to the device of the present application exhibits the following effects (1) to (8).
(1) As a basic structure, it has the appearance of a single piece of resin (no mechanical parts), so there is no need to assemble multiple parts, and the risk that parts may fall off and break down easily Can be eliminated or reduced.
(2) By avoiding the use of metal parts as components, the negative effects of injury risk psychological and mental fear and pressure can be eliminated or reduced.
(3) By adopting an elastomer resin material in the mouth portion, it is possible to eliminate or reduce the risk of pinching scratches, pinching marks, and pinch rust stains on the object to be pinched.
(4) Light weight, space saving, and compactness can be realized by avoiding the use of metal parts as components.
(5) By avoiding the use of spring components with high (strong) spring elasticity (metal springs, springs made of high-elasticity plastic materials, etc.) as spring components, excessive force is not required for opening and closing operations, and the weak (children, It is easy to use for elderly people, physically and mentally handicapped children (persons), women, etc.), and fatigue can be expelled.
(6) As a basic structure, it has the appearance of one piece made of resin with no mechanical parts, so it must be fashionable, stylish and highly flexible. Can do.
(7) By avoiding the use of spring components with high (strong) spring elasticity (metal springs, springs made of high elastic plastic materials, etc.) as spring components, sudden spring breaks due to metal fatigue or stress concentration The risk of breakage can be eliminated or reduced.
(8) Avoid using materials with low coefficient of friction (metal parts, hard plastics, etc.) as the mouth part (clamping part), and adopt an elastomer resin material. The risk of slipping off can be eliminated or reduced.

The clip according to the present application has an appearance of a resin one piece (one body) having no parts, two gripping portions (A1 and A2), one fulcrum portion (B), and two throat portions (C1). And C2), and when a load force (F1) from the outside of the clip is applied to the gripping portions (A1 and A2), the gripping portions (A1 and A2) including plastic resin ) Exhibits a function of turning in the direction in which the shed portion (C1 and C2) is opened around the fulcrum portion (B) as a lever without bending or buckling, and the fulcrum portion (B ) Is deformed by rubber elasticity and exerts a function as a hinge, and the mouth part (C1 and C2) exhibits a function of continuously sandwiching an object to be clamped by a clamping force (F3) from the inside of the clip. With rubber elastic properties The friction properties, is a clip, characterized in that serves the function of sandwiching soft without sliding down the material to be clamped.
The term “elastomer” or “elastomer resin” used in the document attached to the application of this application is based on the operating temperature (usually indoor temperature or outdoor temperature, for example, in the temperate spring, summer, autumn) Is a resin having rubber elasticity at about 10 to 40 ° C., about −10 to 20 ° C. in the temperate winter season, and about −20 to ± 0 ° C. in the refrigerator. The resin has a glass transition temperature (Tg) lower than the use temperature.
The term “elastomer” or “elastomer resin” used in the document attached to the application of the present application includes vulcanized rubber and thermoplastic elastomer.
The elastomer resin includes silicone resin (silicone elastomer), natural rubber, synthetic rubber, isoprene, neoprene (registered trademark), thermosetting elastomer, vulcanized elastomer, thermoplastic elastomer, SBS (styrene-butadiene-styrene). ) Type ternary block copolymer, Califlex (registered trademark), polyurethane, rigid foamed polyurethane, soft foamed polyurethane, spandex (registered trademark) and the like are preferably used.

The term “plastic” or “plastic resin” used in the document attached to the application of this application is based on the operating temperature (usually indoor temperature or outdoor temperature, for example, in the temperate spring, summer, autumn) Is a resin having rubber elasticity at about 10 to 40 ° C., about −10 to 20 ° C. in the temperate winter season, and about −20 to ± 0 ° C. in the refrigerator. The resin has a glass transition temperature (Tg) higher than the use temperature.
The term “elastomer” or “elastomer resin” used in the document attached to the application of the present application includes vulcanized rubber and thermoplastic elastomer.
The term “plastic” or “plastic resin” used in the document attached to the application of this application includes thermoplastic resin and thermosetting resin, and includes general-purpose plastics, engineering plastics (functional plastics, high-performance plastics). Plastics, engineering plastics), super engineering plastics (new functional plastics), and a mixture of two or more plastics (plastic alloy, polymer alloy).
Examples of the plastic resin include silicone resin (silicone plastic), polycarbonate (PC), polystyrene (PS), polyvinyl chloride, polymethyl methacrylate (PMMA), polyethylene terephthalate (PET), polybutylene terephthalate (PBT), nylon, polyethylene ( PE), polypropylene (PP), ABS (acrylonitrile-butadiene-styrene copolymer), biodegradable plastics (polylactic acid, polycaprolactone, etc.) are preferably used.

[Basic structure and basic functions]
The basic structure and basic function of the clip according to the present application are shown in FIGS.
FIG. 1 shows an outline of the structure and function of a clip according to the present application.
FIG. 1 shows a gripping part (A1, A2), a fulcrum part (B), and a shed part (C1, C2) in a clip according to the present application.
FIG. 2 shows a process of opening the lip portion (clamping portion, C1, C2) of the clip according to the present application.
FIG. 3 shows a process in which the mouth portion (clamping portion, C1, C2) of the clip according to the present application is closed and the object to be sandwiched is sandwiched between the mouth portion (clamping portion).
2 to 3 show dynamic changes in appearance when a force is applied to the gripping portion of the clip according to the present application. As the force is applied to the gripping portion, the shed portion opens, and when the force is released, the shed portion closes and the laundry or document is sandwiched.
FIG. 4 shows a specific example of the size of the clip according to the present application.
FIG. 5 shows a specific example of how to use the clip according to the present application.
FIG. 6 shows a specific example of the coloring of the clip according to the present application.

[External structure (external structure)]
The clip according to the present application is a one-piece product made of a colorful elastomer in appearance. Since the clip according to the present application is a one-piece, it has no parts and is not easily broken. The clip of this application is colorful and soft, so it works well in all scenes such as closets, office clips, art, toys, games, etc. In every scene, it stands out lovely and lovely.
Although not shown in FIG. 6, a skeleton can be formed by using a transparent or translucent material as a member constituting the surface layer.
By using a transparent or translucent material for all materials including members constituting the surface layer, the whole can be made transparent or translucent.
FIG. 7 is a front view, FIG. 8 is a rear view, FIG. 9 is a right side view, FIG. 10 is a left side view, and FIG. A plan view is shown, and a bottom view is shown in FIG.
The shades that appear on the entire surface of the six-sided view (front view, rear view, right side view, left side view, plan view, bottom view) are shades that represent the shape of the three-dimensional surface.

[Internal structure]
The clip according to the present application is a one-piece (one body) in appearance, but in the manufacturing process / molding process or the internal structure, the one-piece, two-piece, three-piece, or more than the four-piece It does not matter.
In the clip according to the present application, the inside of the gripping portions (A1, A2) has plastic properties and the outside has elastomer properties, the inside of the fulcrum portion (B) has plastic properties and / or elastomer properties, and the outside has elastomer properties. If the inside of the part (C1, C2) has plastic properties and / or elastomer properties and the outside has elastomer properties, the manufacturing process / molding process or internal structure may be one piece or two piece, It may be a three-piece or a four-piece or more.
The clip according to the present application is a one-piece (one body) in appearance, but is preferably a three-piece, more preferably a two-piece, and even more preferably a one-piece, in the manufacturing process / molding process or the internal structure.
Since the clip according to the present application is a one-piece product made of colorful elastomer in appearance, it is made of a resin (elastomer resin) that is difficult to slip on the mouth part that sandwiches laundry or documents, and the grip part that loads with a finger. Therefore, since it is moderately soft and has a moderately high coefficient of friction, it is difficult to slip.
Therefore, not only housewives but also weak persons (children, elderly people, physically and mentally handicapped children, physically and mentally handicapped persons, etc.) can suitably use the clip according to the present application.
The shed portion is moderately soft and has a moderately high coefficient of friction, so it is gentle to the object to be sandwiched (laundry etc.) and hardly leaves a trace of the laundry that has been dried.
The clip according to the present application can sandwich the laundry or the document at the lip portion by utilizing the rubber elasticity of the elastomer material of the fulcrum part and / or the spring elasticity of the plastic material inherent in the fulcrum part.

[In-mold polymerization method]
As a specific example for manufacturing the clip according to the present application as a one-piece, not only the external appearance but also the internal structure, for example, a monomer is injected into a mold or a mold, and the gripping portions (A1, A2), The outside of the fulcrum part (B) and the throat part (C1, C2) is such that an elastomer characteristic is developed, and the grip part (A1, A2) (in some cases, the fulcrum part (B) and the throat part (C1, C2) ) Can be exemplified by a method in which a cross-linking agent or a catalyst is unevenly distributed and in-mold polymerization is performed so that plastic properties are expressed.

[Different resin molding method]
The clip according to the present application is a one-piece in the external appearance, but as a preferable specific example for manufacturing as a two-piece structure or a three-piece structure in which each piece is firmly bonded without peeling in the internal structure, For example, a different resin molding method of an elastomer resin and a plastic resin can be mentioned.
The heterogeneous resin molding method is disclosed, for example, in JP-A No. 11-058440 (injection molding apparatus and injection molded product and molding method thereof [Sanyo Seiko Co., Ltd.]).

[Insert (outsert) molding method]
The clip according to the present application is a one-piece in the external appearance, but other specific examples for manufacturing as a two-piece structure or a three-piece structure in which each piece is firmly bonded without peeling in the internal structure. For example, an insert (outsert) molding method can be mentioned.
The insert (outsert) molding method is disclosed, for example, on the Yamashiro Seiki Seisakusho website (http://www.sanjo.co.jp/explain/insert.html).
On this homepage,
“Effectiveness of Insert (Outsert) Molding Insert molding is a method of making an integrated composite part by placing an insert in a mold, injecting resin, wrapping the insert with molten resin and solidifying it. . Outsert molding is a method of making a composite part by molding and fixing resin to a part of an outsert product. There is no essential difference in whether the resin wraps or adheres to a part. This method has the following effects. Combining the ease of molding and flexibility of resin with the rigidity, strength, heat resistance, etc. of metals, they can complement each other to make durable and complex parts. In particular, by combining resin insulation and metal conductivity, you can make parts that realize the basic functions of electrical equipment. By assembling multiple parts (inserts) by molding, the assembly of the next process unit can be streamlined. (Refer to 10,) Insert products are not limited to metal, but can be a variety of composite parts such as cloth, thread, paper, electric wire cord, plastic, glass, wood, coils, and electronics such as elements. can make. If a flexible and elastic rubber gasket is integrated into a rigid molded product or part by outsert molding, handling of packing that is difficult to align is eliminated, and automatic assembly of the next process becomes easy. Since metal parts are wrapped with molten resin, the pitch of metal parts can be narrowed compared to press-fitting, and highly reliable composite parts can be made. By selecting the resin and devising the molding conditions, it is possible to seal and fix parts (glass, coils, elements, etc.) that are easily deformed and damaged in many cases. If the mold structure is devised, depending on the shape, the insert part can be completely enclosed in the resin. It is also possible to make a molded product with hollow undercut by eliminating the insert product after molding (lost core). ]
It is explained.
In this description, “resin” is replaced with “elastomer resin” in the clip related to this application, and “insert product” in this description is replaced with “plastic resin” or “metal” in the clip related to this application. can do.

[Co-injection molding method]
The clip according to the present application can also be manufactured by a co-injection molding method. The co-injection molding method is disclosed, for example, on the Yamashiro Seiki Co., Ltd. website (http://www.sanjo.co.jp/explain/coinj.html).
On this homepage,
“The co-injection molding machine is also called sandwich molding or double molding. It is a molding machine that injects two types of resin from one nozzle with a time difference. The first injected resin forms the skin of the molded product, and the core that is injected later forms the core. Therefore, it is possible to reduce the cost of raw materials by using recycled raw materials for later resins, or foaming with a foaming agent can be used to form thick-walled products without losing. (Since it takes longer time to solidify the molded product, multiple molds may be used in the rotary clamping device.) The core of the co-injection molded product is filled with resin, so that it is like a gas injection molded product. The surface rigidity is not reduced locally. Two types of materials are sequentially injected by a molding method that can perform multicolor molding with two sets of horizontal injection units, and a material that forms a hard skin layer on the surface from the injection cylinder (A) is injected into the injection cylinder ( From B), when the injection timing and the supply amount of both materials are adjusted by sandwich injection molding in which a foaming agent-added material constituting a low-density core layer is injected on the inner surface, only the core layer is foamed and light and has high rigidity A product with excellent dimensional accuracy without sinking (strong). In particular, sinks and sink marks are likely to occur in thick parts of injection molded products such as housings and fans of electrical products that are thick and uneven, but this CO-INJECTION method (in Japan, sandwich injection method and If it is said, it will be greatly improved. ]
It is explained.
The “skin” in this description is “elastomer resin” in the clip according to this application, and the “core” in this description is “plastic resin” or “metal” in the clip in this application. , Each can be replaced and understood.
For details on the co-injection molding method, please refer to the JPO website (http://www.jpo.go.jp/shiryou/s_sonota/map/kikai07/1/1-5-4.htm). Sandwich method) ”.
The “resin that becomes the skin layer (surface layer)” in this explanation is “elastomer resin” in the clip according to this application, and the “foamable resin that becomes the core layer (inner surface layer)” in this explanation is the clip according to this application. Can be understood as “plastic resin” and / or “metal”, respectively.

[Half shell molding method]
The clip concerning this application can also be manufactured by the process according to the half shell shaping | molding method. The half shell molding method is also disclosed on the JPO homepage (http://www.jpo.go.jp/shiryou/s_sonota/hyoujun_gijutsu/golf_ball/page187.htm). In this description, “half shell” is replaced with “elastomer resin” in the clip according to the present application, and “core” in this description is replaced with “plastic resin” and / or “metal” in the clip according to the present application. Can be understood.

[Outsert molding method]
The clip according to the present application can also be manufactured by an outsert molding method. The outsert molding method is disclosed in, for example, the Plast website (http://www.plast.ne.jp/company/mame_seikei_yogo.html).
On this homepage,
“(1) Press fitting parts such as metal bushes into a plastic molded product. It is a Japanese-made term named after inserting metal parts outside the mold after molding. (2) In some cases, it refers to a method of molding a small plastic part on a metal plate larger than that (insert molding), in which a metal part is inserted into a mold to mold a resin product containing metal (insert molding). is there. The metal plate is held in the mold by a pin for alignment, and the resin is injected through a hole that has been previously made in the metal plate. ]
It is explained.
“Plastic” in this description is “elastomer resin” in the clip related to this application, and “parts such as metal bush” and “metal” in this description are “plastic resin” or “metal” in the clip related to this application. ”And can be understood by replacing each.

[RIM molding method]
RIM molding technology can also be applied to the molding method described above. The RIM molding method is also disclosed on the JPO homepage (https://www.jpo.go.jp/shiryou/s_sonota/map/kikai07/1/1-5-7.htm).

[Example 1]
FIG. 13 shows a sectional view of Example 1 of the clip according to the present application.
Clips were molded by sandwich structure dissimilar resin molding.
By molding methods such as skin / core molding method, co-injection molding method, sandwich molding method, multi-material molding method, double molding (DLM), firewood molding (MIW), foam injection molding method, multistage molding method, etc. It is a cross-sectional form of a one-piece (integral) molded product having a molded sandwich structure.
The interface (boundary surface) between different materials is firmly bonded and non-peelable.
The illustrated cross section may be exposed on the left and right side surfaces, or may be covered with a skin of the core member.
If it is exposed, the different materials have the same color, and the unity (one-piece property) is exhibited in the appearance of the molded product. In this example, the outer layer was coated with an elastomer to make a one-piece appearance.
As the surface member, a rigid plastic resin, metal or the like can be used (in this embodiment, plastic (polycarbonate) is used).
In this example, the outer surface of the plastic was covered with an elastomer (silicone rubber) to make a one-piece appearance.
As the surface member, a rigid plastic resin, metal, or the like can be used (in this embodiment, plastic (polycarbonate) is used).
In this example, polycarbonate was used as the plastic resin, and silicone rubber was used as the elastomer resin, so that the appearance was a one-piece.

[Examples 2 to 5]
In FIG. 14, sectional drawing of Example 2 of the clip concerning this application was shown.
FIG. 15 shows a sectional view of Example 3 of the clip according to the present application.
In FIG. 16, sectional drawing of Example 4 of the clip concerning this application was shown.
In FIG. 17, sectional drawing of Example 5 of the clip concerning this application was shown.
Core / shell (core / skin) structure Clips were formed by different resin molding.
It is a cross-sectional form of a one-piece (integral) molded product having a core / shell (core / skin) structure molded by a molding method such as an insert molding method, an outsert molding method, a RIM molding method, or a multistage molding method.
The interface (boundary surface) between the shell (skin) member and the core member is firmly bonded and non-peelable.
The shell member (outsert member) is an elastomer resin, and the core member (insert member) is a plastic resin / metal or the like (in this embodiment, plastic (polycarbonate)).
In this example, polycarbonate was used as the plastic resin, and silicone rubber was used as the elastomer resin, so that the appearance was a one-piece.

An outline of the structure and function of the clip according to the present application and the gripping portions (A1, A2), fulcrum portions (B), and shed portions (C1, C2) of the clip according to the present application are shown. It is a conceptual diagram for illustrating the basic structure of the clip according to the present invention and for assisting in understanding the constituent elements (designation specific items) of the present invention. The process of opening the mouth part (clamping part, C1, C2) of the clip according to the present application is shown. The dynamic change of the external appearance at the time of applying force to the holding part of the clip concerning this application was shown. As the force is applied to the gripping portion, the mouth opening portion opens. It is a usage form of a clip according to the present invention, and is a concept that illustrates stepwise changes in form when a clip's opening (clamping part) is opened when a load force is applied to the gripping part from the outside. FIG. The process of closing the mouth part (clamping part, C1, C2) of the clip according to the present application and sandwiching the object to be sandwiched by the mouth part (clamping part) was shown. The dynamic change of the external appearance at the time of applying force to the holding part of the clip concerning this application was shown. As the force is applied to the gripping portion, the shed portion opens, and when the force is released, the shed portion closes and the laundry or document is sandwiched. It is a usage form of a clip according to the present invention, and is a concept that illustrates stepwise changes in form when closing the mouth part (clamping part) of the clip when removing the load force from the outside to the gripping part FIG. A specific example of the size of the clip according to the present application is shown. The specific example of the usage method of the clip concerning this application was shown. The clip of this application is colorful and soft, so it works well in every scene such as closet, office clip, art, toy, game, etc. In every scene, it stands out lovely and lovely. Specific examples of the coloring of the clip according to the present application are shown. The clip according to the present application is a one-piece product made of a colorful elastomer in appearance. Since the clip according to the present application is a one-piece, it has no parts and is not easily broken. Although not shown in FIG. 6, a skeleton can be formed by using a transparent or translucent material as a member constituting the surface layer. By using a transparent or translucent material for all materials including members constituting the surface layer, the whole can be made transparent or translucent. It is a front view of the clip concerning the present invention device. FIG. 6 is a front view of six views (front view, rear view, right side view, left side view, plan view, bottom view). The shading that appears on the entire surface is the shading that represents the shape of the three-dimensional surface. It is a rear view of the clip concerning this application device. It is a rear view among the six views (front view, rear view, right side view, left side view, plan view, bottom view). The shading that appears on the entire surface is the shading that represents the shape of the three-dimensional surface. It is a right view of the clip concerning this application device. FIG. 6 is a right side view of six views (a front view, a rear view, a right side view, a left side view, a plan view, and a bottom view). The shading that appears on the entire surface is the shading that represents the shape of the three-dimensional surface. It is a left view of the clip concerning this application device. 6 is a left side view of six views (a front view, a rear view, a right side view, a left side view, a plan view, and a bottom view). FIG. The shading that appears on the entire surface is the shading that represents the shape of the three-dimensional surface. It is a top view of the clip concerning the present invention device. It is a top view of 6 side views (a front view, a back view, a right side view, a left side view, a plan view, and a bottom view). The shading that appears on the entire surface is the shading that represents the shape of the three-dimensional surface. It is a bottom view of the clip concerning the present invention device. FIG. 6 is a bottom view of six views (a front view, a rear view, a right side view, a left side view, a plan view, and a bottom view). The shading that appears on the entire surface is the shading that represents the shape of the three-dimensional surface. 1 is a cross-sectional view of Example 1. FIG. 6 is a cross-sectional view of Example 2. FIG. 6 is a cross-sectional view of Example 3. FIG. 6 is a sectional view of Example 4. FIG. 10 is a cross-sectional view of Example 5. FIG.

Explanation of symbols

A1 gripping part A2 gripping part B fulcrum part B1 throat part (clamping part)
B2 Mouth opening part (clamping part)
F1 Loading force from outside the clip F2 Restoring force from inside the clip F3 Holding force from inside the clip

Claims (2)

As an appearance, it has the appearance of a one-piece resin piece with no parts,
As a basic structure, it has a basic structure including two gripping parts (A1 and A2), one fulcrum part (B), and two shed parts (C1 and C2),
When a load force (F1) from the outside of the clip is applied to the grip portion (A1 and A2),
The gripping parts (A1 and A2) configured to include a plastic resin exhibit a function of turning in a direction in which the hook part (C1 and C2) is opened around the fulcrum part (B) as a lever without bending or buckling. And
The fulcrum part (B) configured to contain the elastomer resin is deformed by rubber elasticity and exhibits a function as a hinge.
The mouth portion (C1 and C2) configured to include an elastomer resin exhibits a function of opening according to the principle of insulator,
When the load force (F1) from the outside of the clip is reduced by the gripping parts (A1 and A2),
Due to the restoring force (F2) from the inside of the clip,
The gripping parts (A1 and A2) configured to include the plastic resin exhibit a function of turning in the direction in which the hook part (C1 and C2) closes around the fulcrum part (B) as a lever without bending or buckling. And
The fulcrum part (B) configured to contain the elastomer resin is deformed by rubber elasticity and exhibits a function as a hinge.
The mouth portion (C1 and C2) configured to contain an elastomer resin exhibits a function of closing according to the principle of insulator,
When the load (F1) from the outside of the clip is removed by the gripping parts (A1 and A2),
The mouth portion (C1 and C2) configured to include an elastomer resin exhibits a function of continuously sandwiching the object to be sandwiched by the clamping force (F3) from the inside of the clip,
When the object to be clamped is sandwiched between the mouth portions (C1 and C2),
A clip that exhibits a function of softly sandwiching an object to be sandwiched without slipping down due to rubber elastic characteristics and frictional characteristics of the mouth opening (C1 and C2) configured to include an elastomer resin. The clip according to claim 1, wherein the elastomer resin and / or the plastic resin is a silicone resin.