CN103249645B - Container with flexible wall - Google Patents

Abstract

The invention relates to a container (1) having a flexible wall (2, 3), comprising an opening (4), the opening (4) being equipped with means for opening it, said means comprising two flexible, elongated elements (5, 6) whose ends are connected by a first joint (7) and a second joint (8) arranged in such a way that, in a first configuration, the two elements (5, 6) rest against each other, in a second configuration, the two elements (5, 6) are separated from each other, and, in the second configuration, the two elements (5, 6) turn over themselves with respect to the first configuration, characterized in that the two elements (5, 6) are at least partially formed by a flexible strip, the first joint (7) comprising a cut in a portion of the strip, the cut (10) being directed towards the outside of the container (1) in the first configuration.

Description

There is the container of flexible wall

The present invention relates to the container that one has flexible wall (flexible wall), it comprises opening and opening can be made to keep the device opened.

It has been considered to special application in the manufacture of the sack be particularly made up of plastic material and use field, and such as in building and field of civil engineering, hold particle, this example is not restrictive certainly.

Usually the sack used is that the flexible sheets that the material comprising plant source by polymeric plastics material or other is made is made, and comprises the opening that the article for packing put into.This especially reclaims and processes the situation of particle in building and field of civil engineering.

Under normal circumstances, this sack has simple structure, and can not possess any be used for especially simplify debris from demolition loading, especially make the opening of sack remain on the device of open position.

Document FR-A1-2855501 provides the scheme for this problem, and provide and comprise opening and there is the container that opening can be made to keep the device opened on opening, this device comprises two to the flexible-belt of the opening rim of container, and the often end at its two ends is connected by pivotal junction.Staying open position is pivotable amplitude-be especially limited in 180 degree by limiting pivotal junction-realize, thus makes when flexible-belt during pivotable, keeps flexible-belt to separate along with the rotation of wall of container.

Existing device provides satisfied effect generally.But consider that the usual price of the type of related products is very low, the manufacture of existing apparatus is with regard to relative complex.

Document FR-A1-2894512 provides to manufacture and is equipped with the method and the installation method that make opening keep the container of the device opened.It is use two flexible-belts be connected to during manufacture.Its manufacturing step has sizable difficulty.

The present invention makes all or some technological deficiencies known before this be resolved, and for this purpose, provides a kind of container with the flexible wall of improvement.

The present invention proposes on the top of container, i.e. its opening part, additional is a kind ofly equipped with the device making opening keep the means of opening.This device comprises two flexible elongated members, and their end is coupled together by the first and second junction surfaces.When these junction surfaces are arranged in the first configuration, two elements are leaned on mutually, make two elements be separated from each other when the second configuration, when the second configuration, two elements self are relative to state turnover during the first configuration.

According to a kind of possibility of the present invention, two elements are formed at least in part in flexible-belt, and the first junction surface is included in the otch formed in a part of thickness of described band.Advantageously, when the first configuration, this otch is towards the outside of container.According to a kind of favourable possibility, the second junction surface and the first joint portion are formed in the same fashion, the otch namely formed in a part of thickness of band.

It is easily understood that by the present invention, the state that the opening that can device be made in an optimized fashion to remain on container opens, is especially located on each junction surface respectively by means of by two otch.

In addition, according to preferred embodiment, the realization of the design utilizes independent flexible-belt, and otch is located on a face of flexible-belt, and the end of flexible-belt is by simple welding or bonding and couple together.

Band is single piece of material.Therefore only adopt one piece material during manufacture, and implementation phase be reduced to two otch and an assembling.It is believed that the junction surface formed by otch cannot be supplied to the enough intensity of container, especially at open position, the present invention has challenged this prejudice in the past.Specifically, be singly the otch that part is formed in the thickness of flexible-belt, just provide enough intensity to meet the suitable use of this container.

In addition, in view of document FR-A1-2855501 considers the connection realizing between band by each end of band, the binding site place of the present invention between flexible member, junction surface is set in the position of its each end.Find surprisingly, in the present embodiment, when this device is in the second configuration, can simply compressing by the junction surface part that formed in the thick layer of flexible-belt (thickness), stay open position.Thick layer the compressing thick layer of the flexible-belt produced in this position, did not predict before.

Thus, prior art instruction is formed with two different elements obviously separated and makes opening keep the device opened, and the present invention is then by being that this prejudice challenged by the assembly that flexible-belt is formed in single piece of material.

In description below, there will be other objects and favourable part, they only represent the specific embodiment of the present invention, do not have restriction object of the present invention.

First, various favourable but nonrestrictive embodiment of the present invention will be introduced below, can by these modes alternately or superposition implement.

The height of-otch, between 30% to 90% of the thickness of band, is more advantageously between 50% to 80% or between 50% to 70%.

The height of-otch equals 2/3 of the thickness be with.

The direction of-otch is perpendicular to the face back to otch of being with.

-two elements is formed by band completely, and the end of band links together.

-band is made up of high density poly propylene.

-band is that the high density poly propylene obtained by expressing technique is made.

-band is made up of polyethylene.

-band is made up of biopolymer or other plant material.

-the first junction surface comprises the enhancement Layer back to otch, is positioned on the face contrary with otch.

-the second junction surface is similar to the first junction surface.

The surface of one of-multiple element comprises viscosity part, and this surface is positioned at the outside of the container being in the first configuration.

At least one in-otch comprises projection on its edge, and what this projection made band is partially formed protrusion.

-protruding thickness increases on the direction at each edge of otch.

The thickness large 10% that-protruding maximum ga(u)ge ratio is with.

The invention still further relates to a kind of method manufacturing container, comprise the following steps: on same of flexible-belt, form two otch, its degree of depth is the segment thickness of flexible-belt, and the length of being separated by between otch equals the half of strip length, the two ends of band are connected.

Advantageously, surrounding's formation that the method is included at least one of otch is protruding, forms the local projection of band.

Following accompanying drawing provides in an illustrative manner, is not construed as limiting the present invention.They only represent one embodiment of the present of invention, and the present invention can be made to be better understood.

Fig. 1 shows and makes opening keep the device embodiment of the means of opening according to the formation of preferred implementation.

Fig. 2 is planar view, and Fig. 3 shows the details of joint motion in Fig. 2.

Fig. 4 illustrates and elongated member is close together or possibility away from each other, and Fig. 5 provides its detail view at junction surface place.

Fig. 6 with Fig. 7 is similar to Fig. 4 with Fig. 5 view when container is in the larger position of opening respectively.

Fig. 8 shows the block diagram of the device in the figure of foregoing descriptions.

Fig. 9 shows a kind of possibility that the first transformation of configuration for making device illustrate from Fig. 1 to Fig. 7 makes device self overturn to the second configuration shown in Figure 10 and Figure 11.

Figure 10 comprises makes opening keep the plan view of device under the second configuration opened, and the otch at its junction surface is towards the inner side of container.Figure 11 shows its detailed view.Figure 12 shows the container that the device illustrated is housed at its top substantially above.Figure 12 is the front elevation of container, and Figure 13 is its cutaway view.Figure 14 show of the present invention have make opening keep the container of the device opened according to the second configuration block diagram in a state of use.

Figure 15 shows a kind of possibility forming otch.

Accompanying drawing identifies

1. container 2. sidewall 3. sidewall 4. opening

5. element 6. element 7. first junction surface

8. the second junction surface 9. fixed area 10. otch 11. otch

12. viscosity part 13. reverse side 14. blades 15. are protruding

The shape of container 1 and material are also unrestricted.Such as, situation can be a kind of bag of shape, the container 1 be made up of the material of polymer plastic, and comprise two sidewalls 2,3, it is made up of the sheet polymer plastic material that shape is substantially rectangular, and is connected by their three limits.Also likely formed additional bottom, wadding or other do not exceed the additional device of scope of the present invention.

Sidewall 2, the disengaged margin of 3 makes opening 4, for putting into the article to be placed to container 1.

The present invention includes and make opening 4 keep the device opened in the loading stage.

When Figure 12 to Figure 14 illustrate, these devices are positioned at the top of container 1, just in time in the edge of its opening 4.But these devices can be positioned at other positions, position that specifically can be highly lower in sack bottom direction.

Opening 4 is made to keep the preferred implementation of the device opened to carry out more definite description by being used for below.

More particularly, in FIG, be marked into here 5 be the basic elongated member 5 in flat rectangular shape.

Fig. 2 shows the elongated member 6 of the complementation of device from the visual angle overlooked.Elongated member 5 and 6 be of similar shape with size advantageously.Their each end is coupled together by the first junction surface 7 and the second junction surface 8.

Be made into advantageously identical by junction surface 7 and 8, thus optimize manufacturing process, this is not required certainly.Junction surface 7, at least the first junction surface 7 in 8 comprises otch, and it is forming elongated member 5 at least in part, and one or the other or two in 6 bring formation.A kind of especially favourable scheme comprises the elongated member 5,6 using flexibility to bring manufacture all.

Preferably, make flexible-belt by polymeric material, and be more advantageously make all elongated members 5,6, and make them be formed as keeping providing enough bending flexibility, realize the structure that container 1 is opened shown in Fig. 6 and Figure 10, and elongated member 5 can not be caused, the fracture of 6.

Such as, can use the band be made up of the polymeric material of polypropylene type, be more specifically high density poly propylene that expressing technique is made.The employing of this material is especially favourable, because this material is found to have the mechanical property be equal to fibre, its mechanical strength increases with the length of flexible-belt.Like this, although otch is at the first junction surface 7 place with selectively also in the formation of the second junction surface 8 place, the mechanical strength of material is all enough to keep elongated member 5, the continuity (coherence) between 6.

The basic mechanical specialities for stratiform of high density polyethylene (HDPE) prepared by expressing technique guarantees to be formed residual layer on this side of otch, under making junction surface be in good mechanical strength and flexible condition.

Alternatively, can also use polyethylene or other comprise the poly-mer of plant source poly-mer (biopolymer).Non-transformed vegetable matter can also be used.Such as, bamboo can be used.More properly, bamboo pole is cut along its length, make it only be left flexible slice.The fiber that longitudinal direction leads, with strong fiber properties, even also can provide mechanical strength for this after the otch of junction surface.Other timber, advantageously the timber of high microsteping, also may be utilized.In addition, another favourable possibility is strengthened one or the other or two at junction surface 7,8.Such as, the enhancement Layer of the adhesion type with tissue layer can be adopted.

Fig. 6 more clearly demonstrates otch 10, the making of 11.With for making elongated member 5, the direction of the plane orthogonal on the flexible-belt surface of the base band of 6 forms otch advantageously on the whole width of band.By otch 10,11 are made into and can prevent or reduce the coming off advantageously of material as far as possible.Therefore, can guarantee when open position, elongated member 5, the abutting end of 6 crosses elongated member 5, the thickness of 6 and joining, and substantially forms linearity as shown in Figure 7.It is worthless that junction surface 7 and 8 makes breach.Can by otch 10,11 are defined as band are divided into two parts simply.Particularly, thin blade can be adopted to make otch.

Preferably, the thickness of otch be band whole thickness 50% to 70% between.Make the thickness of otch be approximately the thickness 2/3 of band thus the flexible portion making to make junction surface to form 1/3rd approximately remaining thickness better.

By the possible embodiment shown in the mode of non-limiting example, following dimensional parameters can be adopted:

Thus the thickness of-flexible-belt be also elongated member 5, the thickness of 6: between 0.2 millimeter to 0.8 millimeter.A kind of scheme providing satisfactory result adopts the band of 0.4 millimeters thick; According to another kind of possibility, the thickness of band, being specially polyacrylic thickness is 1 millimeter.So the recess of otch such as accounts for 80% of thickness, is that is 0.8 millimeter here.

-band width between 5 millimeters to 20 millimeters, such as 14 millimeters.In addition, the width of band goes out greatly about 10 to 40 times of effects that can be satisfied with to the people that sends as an envoy to than its thickness.

-elongated member 5, the length of 6: between 300 millimeters to 500 millimeters.

When make opening keep the device opened be made up of independent band (band) time, adoptable manufacture method is kept flat by band, and one face can be contacted, and at least arranges otch at junction surface 7 place, also arranges identical otch then more favourable at junction surface 8.Otch 10, at least one in 11 makes by means of the blade 14 with the profile launching (splayed) towards bottom.The expanded angle of the outline line of blade 14 can between 5 degree to 10 degree.This makes the vicissitudinous thickness of blade tool, and therefore makes the width of recess also be change, and this width is to otch 10, and the direction of the bottom of 11 reduces.Period in blade incision band, blade causes the plastic deformation of carrying material.Particularly, on the surface of the formation otch of band, the projection 15 forming material around this otch is favourable.This projection 15 has preferably towards the profile that each edge of otch increases, and the thickness of band is being increased slightly near otch 10,11 place.This projection be to the maximum tape thickness 10% to 20% between, be that is 0.2 millimeter concerning the band of 1 millimeters thick.

Projection 15 around otch adds the area of contact between otch two edges partly, therefore increases the effect making container remain on open position.Advantageously, this projection can not bring additional manufacturing step, because it is formed with otch simultaneously.In addition, the thickness of the remainder of band does not change, and this remains its flexibility, and avoids consuming excessively of material.

Otch 10,11 are configured to make it to equal elongated member 5, and the distance of 6 length is spaced apart.Then, need to be with folding onto itself, make element 5 against element 6, as depicted in figs. 1 and 2.In this stage, the free end of band is installed by the method for any routine, can comprise the assembling adding anchor fitting or form welding or viscosity bond type.In the latter case, the length of flexible-belt is greater than elongated member 5 slightly, and the overall length of 6 is favourable.Thus, remain lap, be allowed for the formation of the fixed area 9 of welding.

It should be noted, elongated member 5, at least one the comprised viscosity part in 6, when the latter is in the first configuration, this viscosity part is positioned on the face in the outside of container 1.Such as, viscosity part 12 can be made by the form of double faced adhesive tape, in time wanting to close sack, can remove protective film from double faced adhesive tape.By by elongated member 5,6 fold to the wall 2,3 of container 1 at first make viscosity part 12 generation effect thus realize the closedown of sack on this wall.

Keep the first configuration of the device opened shown in Fig. 1 to Fig. 7 and Figure 12 to Figure 13 for making opening.In this case, elongated member 5,6 have the tendency moved towards each other, and sack can not be stayed open.On the other hand, user is by making elongated member 5, and 6 are moved apart, and realizes opening of container, as shown in Figures 4 to 7.In this configuration, junction surface 7, the otch 10,11 of 8 is towards the outside of container 1.The flexibility of elongated member makes it recoil to make position.

Fig. 8 to Fig. 9 illustrates a kind of possibility from the first configuration to the second configuration.In fig. 8, elongated member 5,6 are separated from each other.This interval does not need to expand to maximum.So operator can move two elongated members 5,6, is preferably the movement of symmetric mode, thus makes it turn.Nature, this operation as a result, before in the first configuration elongated member 5,6 towards the face outside container 1 just towards the inner side of container 1.At this moment the second configuration is just become.This corresponds to the view shown in Figure 10, Figure 11 and Figure 14.It should be noted that now otch 10,11 is towards the inner side of container 1.

Figure 11 illustrate in greater detail at junction surface 7 place elongated member 5, the relative position of two ends of 6, and the effect of the otch to be formed at this place, element 5 is instigated in this effect, 6 to stride across (across) its caliper portion adjacent, device is in and makes the opening 4 of container 1 keep the open position opened.

Figure 14 shows overall effect well.Can find out, operator, without the need to applying other power on sack, just can make opening 4 stay open.

Otch 10,11 are made into and pass across elongated member 5, the width of 6, and perpendicular to elongated member 5, and the direction of the length of 6 is favourable.

Claims (16)

1. there is flexible wall (2, 3) container (1), comprise opening (4), described opening (4) is equipped with the device that this opening (4) is opened, described device has two flexible elongated members (5, 6), its end is coupled together by the first junction surface (7) and the second junction surface (8), when described two junction surfaces are arranged in the first configuration, make described two elements (5, 6) mutually lean on, described two elements (5 are made when the second configuration, 6) be separated from each other, when being in described second configuration, described two elements (5, 6) self overturns relative to during described first configuration,

It is characterized in that, two elements (5,6) formed by an independent flexible-belt completely, the end of described band couples together, described first junction surface (7) is included in the first otch (10) in a part for the thickness of described band, when the first configuration, described first otch (10) is towards the outside of described container (1), second junction surface (8) is included in the second otch (11) in a part for the thickness of described band, when the first configuration, described second otch (11) is towards the outside of described container (1).

2. container according to claim 1 (1), wherein, the height of described first otch (10) is between 50% to 80% of the thickness of described band.

3. container according to claim 2 (1), wherein, the height of described first otch (10) equals 2/3 of the thickness of described band.

4. according to the container (1) one of claim 1-3 Suo Shu, wherein, the direction of described first otch (10) is perpendicular to the face back to described first otch (10) of described band.

5. container according to claim 1 (1), wherein, described first and second otch separate with the length of the length half equaling described band between (10,11).

6. container according to claim 1 (1), wherein, described band is made up of high density poly propylene.

7. container according to claim 6 (1), wherein, described band is made up of the high density poly propylene extruding.

8. container according to claim 1 (1), wherein, described band is made up of polyethylene or biopolymer or other plant material.

9. container according to claim 1 (1), wherein, described first junction surface (7) comprises the enhancement Layer back to described first otch (10), and it is positioned on the face (13) contrary with described first otch (10).

10. container according to claim 1 (1), wherein, described second junction surface (8) is structurally similar to the first junction surface (7).

11. containers according to claim 1 (1), wherein, one in described two elements (5,6) comprises viscosity part (12), and it is positioned on the face in outside when described container (1) is in the first configuration.

12. containers according to claim 1 (1), wherein, at least one in described first and second otch (10,11) comprises projection (15) and protrudes to cause the local of described band at its edge.

13. containers according to claim 12 (1), wherein, the thickness of described projection (15) increases on the direction at each edge of described first and second otch (10,11).

14. containers according to claim 13 (1), wherein, the maximum ga(u)ge larger than the thickness of described band 10% of described projection (15).

15., according to the manufacture method of one of claim 1-14 container, comprise the following steps:

-on same of described flexible-belt, form the first and second otch (10,11), its degree of depth is the segment thickness of described flexible-belt, the length of being separated by between described first and second otch (10,11) equals the half of the length of described band

-two ends of described band are linked together.

16. methods according to claim 15, comprising: the surrounding of at least one formation projection (15) in described first and second otch (10,11) is to form the local projection of described band.