JP2002362590A - Clip and clip clincher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To decoratively package a clip seal bag. SOLUTION: A clip 1 is formed in a staple shape by connecting a pair of leg parts 2 in its center part 3. Of the leg pars 2, the base part 2A of the center part 3 is formed thinner than the tip end part 2B relative to the direction where the leg parts 2 are bent in a ring shape.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clip used in a binding machine for binding bags or the like with clips, and more particularly to a clip capable of improving the appearance quality when binding bags.

[0002]

2. Description of the Related Art Heretofore, there have been products sold in which products and the like are stored in a packaging bag such as a polyethylene bag or a cosmetic bag, and the bag opening of the packaging bag is sealed with a clip.

The clip for sealing the bag mouth of this packaging bag is U-shaped made of aluminum or plastic, and has a uniform cross-sectional shape from the root to the tip of a pair of legs. Have been.

[0004] When sealing the bag mouth of the packaging bag with the U-shaped clip, the bag mouth of the packaging bag is inserted between a pair of legs of the U-shaped clip, and a pair of clips of the clip is inserted. Bend the legs so that they are involved, and seal the bag opening.

A device for bending a leg of a clip includes a table having a guide groove through which a bag opening of a packaging bag passes, a magazine for holding and storing a plurality of clips, and a magazine arranged near the clip sealing position of the guide groove. A holder called a clincher having a holder for holding a clip taken out of the holder horizontally and a guide wall disposed at a position facing the leg of the clip held by the holder and bending a pair of legs of the clip. And a screwdriver that pushes the connection between the legs of the clip held by the holder to the clincher side, and the bag mouth of the packaging bag to be sealed is positioned between the holder and the clincher and held by the holder. When the clip is pressed to the clincher side by the driver, the bag mouth enters between the pair of legs of the clip, and the pair of legs Therefore, so that the bag mouth is sealed by a clip.

[0006]

In such a clip, when the driver is moved to the clincher side while holding the clip in order to bind the bag mouth with the clip, the tip of the leg comes into contact with the clincher. . At this time, since the moment for bending the leg acts on the tip of the leg, the root having the largest stress against this moment is easily bent, and the planar shape of the clip becomes elliptical or elongated. There is.

As described above, when the clip is bent into an elongated shape in which the clip is crushed into an ellipse, there is a problem in that the packaging quality is deteriorated in the case of packaging products having high palatability and decorativeness.

In addition, when the bag mouth is bound by the clip, the legs of the clip tend to double overlap in the vertical direction of the bag mouth, so that the size of the bag increases in the vertical direction of the packaging bag, which also has high palatability and decorativeness. There is a problem that packaging quality is not improved in product packaging.

The present invention has been made in view of such a problem, and an object of the present invention is to further improve the appearance of a clip used for sealing a bag mouth at the time of sealing.

[0010]

According to a first aspect of the present invention, there is provided a clip which is formed in a staple shape by projecting a pair of legs from a central portion in one direction. The thickness of the tip of the pair of legs is formed to be thinner than the root of the connecting portion in the bending direction in which the legs are bent in an annular shape.

A clip according to a second aspect of the present invention is a clip formed in a staple shape by projecting a pair of legs from a central portion in one direction, wherein a wedge-shaped taper is provided at a tip end of the leg. The surface is formed.

According to a third aspect of the present invention, there is provided a clip clincher, comprising: a driver for projecting a pair of legs from a central portion in one direction to press a connecting portion of a staple-shaped clip; A clip clincher for receiving a pair of legs of the clip against each other, bending the pair of legs in a direction approaching each other to bind a bag mouth with the clip, and comprising a pair of clips pressed by the driver. It is characterized in that a projection for bending one of the pair of legs inwardly than the other is provided on a surface for receiving the legs.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A clip and a clip clincher according to an embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a clip according to a first embodiment of the present invention. This clip 1
As shown in FIG. 1A, the roots of a pair of legs 2, 2 are connected by a center 3.

Each of the pair of legs 2, 2 has a root 2A.
1B, the base 2A is formed so as to have substantially the same cross-sectional shape as the central portion 3 as shown in FIG.
As shown in (C), the tip 2B is formed to be thin.

That is, the pair of legs 2, 2 extend in a direction substantially perpendicular to the central portion 3, but when a cut surface of the legs 2, 2 extending in the axial direction of the central portion 3 is assumed, The portion 3 is formed so that the thickness along the axial direction becomes thinner from the root portion 2A to the tip portion 2B.

Thus, the legs 2, 2 of the clip 1
Are bent inward toward each other, and the tips 2B,
2B is easy to bend against an inward bending force. The cross-sectional shapes of the tips 2B and 2B are shown in FIGS.
(C) has a rectangular cross-sectional shape, but may have an elliptical shape.

The device for bending the clip 1 is composed of a driver for holding the central portion 3 of the clip 1 and a clincher (both not shown) for bending the tips 2B and 2B of the clip 1. And the clincher are arranged at positions facing each other.

The driver and the clincher are supported so that they can approach and separate from each other, and the central portion 3 of the clip 1 is held on the driver side. When a bag that seals the bag mouth with the clip 1 is supplied between the legs 2 and 2 of the clip 1, the driver and the clincher relatively bind the bag mouth of the clip 1.

In this embodiment, as shown in FIG.
When the clip 1 binds the bag 4 with a driver and a clincher, the tips 2B and 2B of the legs 2 and 2 of the clip 1 are formed thinner than the roots 2A and 2A. It becomes easier to bend than the roots 2A, 2A, and as shown in FIG. 2, the clip 1 is bent in a circular or almost circular state.

When the clip 1 is bent, as shown in FIG. 3, the distal ends 2B, 2B of the legs 2, 2 of the clip 1
In many cases, the upper end of the bag 4 to be bound is doubled in the vertical direction, but the tips 2B and 2B can be doubled in the radial direction of the circle.

As described above, the clip 1 is formed by changing the cross-sectional shape of the distal ends 2B, 2B so that the distal ends 2B, 2B can be bent more easily from the vicinity of the roots 2A, 2A of the pair of legs 2, 2. Although a thin rectangular cross section is formed from 2A to the tip 2B, a groove or the like extending in the cross-sectional direction of the legs 2, 2 may be provided inside the legs 2, 2. [Second Embodiment] FIG. 4 shows a clip 10 according to a second embodiment of the present invention. This clip 1
The zero legs 11, 11 extend in a direction substantially orthogonal to the axial direction of the central portion 12. The tips of the legs 11, 11 are tapered surfaces 1 cut in one direction and formed in a wedge shape.
1A and 11A. This tapered surface 11A, 1
1A forms a wedge-shaped cross section by inclining in a certain direction in the legs 11, 11, but the tapered surfaces 11A, 11A of the pair of legs 11, 11 may incline in different directions.

The wedge-shaped shape of the leg 11
When the legs 11, 11 are bent by the clincher 13 (see FIGS. 5 (A) and 5 (B)) because of the shape viewed from the direction perpendicular to the plane formed by the The leg portions 11, 11 overlap with each other in the radial direction of the circular ring to be easily bent, and as shown in FIG. [Clincher for Clip] The clincher 13 for bending the clip 10 of FIG. 4 into a ring shape has a cylindrical shape for receiving the legs 11, 11 of the clip 10 as shown in FIGS. 5 (A), 5 (B) and FIG. An inner wall surface 15 is provided. On one edge of the cylindrical inner wall surface 15 that receives the pair of legs 11, 11 of the clip 10, a projection 16 for bending one of the pair of legs 11, 11 inward from the other is formed. ing.

The surface 16A of the protrusion 16 on the edge side of the inner wall surface 15 is connected to the leg 1 entering from one edge of the inner wall surface 15.
1 to bend inward. In addition, a surface 16 </ b> B on the far side of the projection 16 is a guide surface for bending the tip of the leg 11 entering from the other edge of the inner wall surface 15. This prevents the legs 11, 11 from overlapping with each other in the radial direction of the inner wall surface 15, and prevents the pointed portion from being exposed to the outside of the circle.

Reference numeral 17 denotes a driver which holds the clip 10 and presses it toward the inner wall surface 15 of the clincher 13. Surface 18 for holding clip 10 of driver 17
May be flat or a cylindrical inner wall. Third Embodiment FIG. 8 shows a clip 20 according to a third embodiment of the present invention. This clip 2
0 is substantially U-shaped including the legs 21, 21 and the central portion 22.

The legs 21, 21 are formed in a tapered shape so that the tips are spread outwardly from each other, so that the bag mouth can be easily introduced. Central part 22 of legs 21, 21
The base portion in the vicinity is a cross section taken along the line II in FIG.
As shown in (A)), it is formed thick in the bending direction. On the other hand, as shown in a cross section (FIG. 9B) along the line II-II in FIG. 8, the distal end of the leg 21 is formed to be thin in the bending direction.

As shown in FIGS. 10 and 11, the clip 20 has a substantially trapezoidal connecting portion 2 formed in a central portion 22.
3 is a part of the clip connector 24 connected in large numbers, and is separated from the clip connector 24 to bind the bag mouths.

That is, for example, when the clip 20 is supplied to the driver 17 shown in FIGS. 5A and 5B, the connecting portion 23 of the clip 20 located at the end of the clip connecting body 24 is not shown with a cutter or the like. Separated by separation means,
The separated clip 20 is guided by a guide member such as a slot, and is held by the driver 17.

When the clip 20 is separated from the clip connector 24, the clip 20 is viewed from above (FIG. 1).
0) Since the connecting portion 24 is formed in a trapezoidal shape and formed to be thin when viewed from the side of the clip connecting body 24, when a shearing force for separating from the side of the clip connecting body 24 is applied, Since the shearing force is concentrated on the bottom portion 23A, it is easy to separate. Further, even if a force is applied to the central portion 22 along the direction in which the legs 21, 21 extend, the upper bottom portion 23 </ b> A of the trapezoidal connecting portion 23 can be broken and separated.

For this purpose, the clip 20 is set on the driver 17 and the clincher 13 shown in FIGS. 5A and 5B, and the bag opening 14 is positioned between the legs 21, 21. When approaching, leg 2
The shape of the clip 20 for binding the bag mouth 14 is formed in a ring shape by gradually bending from the distal end portions of the first and the first 21.

When the clip 20 is separated from the clip connector 24, the upper bottom portion 23A of the connecting portion 23 has a trapezoidal shape shorter than the lower bottom portion, and burrs do not occur. In addition, since there is no such a situation that the connecting portion 20 protrudes very little, the appearance of the package after the binding of the bag mouth is not affected. Fourth Embodiment FIG. 12 shows a clip 30 according to a fourth embodiment of the present invention. Clip 30
The center part 31 has a substantially circular planar shape and the leg part 3
2, 32 are formed in a substantially U-shape so as to spread outward.

The tip portions 3 of the legs 32, 32 of the clip 30
3, 33 are bent inward from the middle of the legs 32, 32, and are provided with bent portions 34, 34 for concentrating a deformation force for bending the legs 32, 32 inward to make the legs 32, 32 easier to bend. .

FIG. 13A is a sectional view of the leg 32 taken along the line II, FIG. 13B is a sectional view of the leg 32 taken along the line II-II, and FIG.
FIG. 3C is a sectional view of the leg 32 taken along the line III-III. Leg 3
Each of the bases 2 and 32 has a root portion 32A having the same cross-sectional shape as the central portion 31 and is formed thick in the bending direction. The intermediate portion 32B of the legs 32, 32 is formed to be thinner than the root portion 32A, and the intermediate portion 32B is formed to be thinner than the root portion 32A.
It is easier to bend than 2A. The tip portions 32C of the legs 32, 32 are formed to be thinner than the intermediate portion 32B, and the bent portions 34 are provided.
When a deformation force acting to bend the legs 32, 32 inwardly acts on the 2C, it gradually bends into a ring shape from the distal end 32C. The bent portion 34 provided on the leg 32 of the clip 30 may be a depression or a groove. [Fifth Embodiment] FIG. 14 shows a clip 40 according to a fifth embodiment of the present invention. The legs 41 of the clip 40 are formed so as to extend outward from the central portion 42. FIG. 15A shows a sectional view of the leg 41 taken along the line II, and FIG. 15B shows a sectional view of the leg 41 taken along the line II-II. In this manner, the base 41A of the leg 41 is formed such that the thickness in the direction of bending from the base 41A to the tip 41B is gradually reduced.

For this reason, when a deformation force acts from the tip of the leg 41 toward the center 42 by the driver and the clincher, it is gradually bent from the tip 41B to the base 41A, and the clip is closed when the bag mouth is bound. 40 is formed in a ring shape.

The clips 1, 10, 20, 30, and 40 of the first to fifth embodiments are made of polycarbonate, aluminum, or another material that is easily bent. Also, the clip connector 24 of the clip 20
However, it is needless to say that the clips 1, 10, 30, 40, etc. are also provided with a connecting portion at the center or the leg to form a clip connecting body. Further, the clip 30
The bent portion 34 or the dent or the groove provided on the leg portion 32 is applicable to the clips 1, 10, 20, and 40. By providing such a bent portion 34 or the dent or the groove, the clip Has the effect that the legs can be easily bent in a ring shape.

[0035]

According to the clip of the first aspect of the present invention, since the clip does not bend into an elliptical shape or a crushed elongated shape, the packaging quality is improved even in the case of packaging products having high taste and decoration.

According to the clip of the second aspect of the present invention, when the bag mouth is bound by the clip, the legs of the clip do not overlap doubly in the vertical direction of the bag mouth. Even for packaging, the quality of the packaging is improved.

According to the clip clincher of claim 3 of the present application, when the clip is rolled into a ring and the bag is sealed, the ends of the ring-shaped clip can be overlapped in the radial direction of the circle, and the package can be wrapped. Appearance is improved.

[Brief description of the drawings]

FIG. 1A is a perspective view of a clip according to a first embodiment in which a tip end of a leg is formed to be thin in a bending direction;
FIG. 1B is a cross-sectional view taken along line II of FIG. 1A, and FIG.
FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 2 is a plan view showing a state in which the clip is bent in a ring shape.

FIG. 3 is a side view of a state where bags are bound by clips.

FIG. 4 is a plan view of a clip according to a second embodiment.

5A is a conceptual diagram of a state in which a clip is begun by a clincher and a driver, and FIG. 5B is a conceptual diagram of a state in which the clip is bent into a ring by a clincher and a driver.

FIG. 6 is a plan view showing the shape of the clincher.

FIG. 7 is a side view of a state where bags are bound by clips.

FIG. 8 is a plan view of a clip according to a third embodiment.

9A is a cross-sectional view of the clip of FIG. 8 taken along the line II, and FIG. 9B is a cross-sectional view of the clip of FIG. 8 taken along the line II-II.

FIG. 10 is a plan view of the clip connector of FIG. 8 as viewed from the center;

FIG. 11 is a side view of the clip connector of FIG. 8 as viewed from the leg side;

FIG. 12 is an exemplary plan view of a clip according to a fourth embodiment;

13 (A) is a cross-sectional view of the clip of FIG. 12 taken along the line II, FIG. 14 (B) is a cross-sectional view of the clip of FIG. 12 taken along the line II-II, and FIG. 14 (C) is the clip of FIG. III-III sectional view taken on the line.

FIG. 14 is an exemplary perspective view of a clip according to a fifth embodiment;

15A is a cross-sectional view of the clip of FIG. 14 taken along the line II, and FIG. 15B is a cross-sectional view of the clip of FIG. 14 taken along the line II-II.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 clip 2 leg part 2A root part 2B tip part 3 central part 10 clip 11 leg part 11A taper surface 12 central part 13 clincher 15 inner wall surface 16 protruding part 17 driver

Claims (3)

[Claims] 1. A staple-shaped clip formed by projecting a pair of leg portions from a central portion in one direction, wherein the distal ends of the pair of leg portions are arranged in a bending direction in which the leg portions are bent in an annular shape. A clip characterized in that a thickness of the portion is formed smaller than a root portion of the connecting portion. 2. A clip formed in a staple shape by projecting a pair of legs from a central portion in one direction, wherein a wedge-shaped tapered surface is formed at a tip portion of the legs. And clip. 3. A driver for projecting a pair of legs from a central portion in one direction to press a coupling portion of a staple-shaped clip, and a pair of legs of the clip against a pressing force of the driver. A clincher for receiving a pair of legs, bending the pair of legs in a direction approaching each other, and binding the bag mouth with the clip, the surface receiving the pair of legs of the clip pushed by the driver, A clincher for a clip, comprising: a projection for bending one of the legs of the first member inwardly than the other.