CN1666030A

CN1666030A - Spring and dispenser comprising same

Info

Publication number: CN1666030A
Application number: CN03815289.4A
Authority: CN
Inventors: H·彭纳内科; C·皮埃尔
Original assignee: Valois SAS
Current assignee: Aptar France SAS
Priority date: 2002-06-28
Filing date: 2003-06-27
Publication date: 2005-09-07
Also published as: FR2841620B1; EP1540199A1; BR0311726A; JP2005537443A; WO2004003402A1; FR2841620A1

Abstract

The invention concerns a spring (4) characterized in that it comprises two leaves (41, 42) linked together by at least one link (43, 44), at least one leaf including a convex part which is supported on the other leaf in at least one support zone (413, 414, 423, 424) upon its elastic deformation by pressure on its convex part to bring it towards the other leaf, the link being located outside said support zone.

Description

Spring and the distributor that comprises this spring

Technical field

The dispensing device that the present invention relates to spring and use this spring, and return spring is used for distributor is brought back to.But described spring should not be limited to only use in such distributor.In fact, it can also be used for the system of any other elasticity of demand return mechanism.

Background technique

The spring that has had many types, the most normal use is the common spring with cylindricality spiral.In the time of in need being installed in such helical spring automatically a device or special system, need make the spring orientation, catch spring with a suitable machinery as a robot then.Because the cylindricality of spring and microscler shape are difficult to control when a helical spring begins.Therefore can not disperse to store from one and directly be provided to one the device in suitable place.

The present invention makes every effort to form the spring of another kind of type, and its orientation is easier, and spring is almost automatically in place in the position of a spring function that can guarantee it.

People also know the spring of describing among file US-2 432 288 and the US-4-932 508.

In file US-2 432 288, spring is made of the lamellar body of two one bending on another, and the end of a lamellar body contacts with another lamellar body.When pushing this spring and making two lamellar bodies near each other, the power that distortion needs only can increase.In fact, lamellar body near the time, the pawl that the free end of a branch that contacts with another branch forms bears a continuous modification that increases all the time.

File US-4 932 508 describes a clutch that has freewheel, and this clutch comprises a flexuose lamellar body spring.Each lamellar body of spring has a window, the curved jaws that can contact with another lamellar body when cutting out a length of spring compressed in the window.The power that flattening spring needs just increases along with the distortion of curved jaws.

Therefore, increase, can not guarantee that with this class spring spring flattens fully or tightens owing to flatten the power that needs.Possible flat pressure is not enough, and spring just partly is crushed.Aspect the fluid product distribution of using a return spring, this is harmful to really, because the product dosage of distributing is inaccurate and inconstant.

People also know file FR-2 813 364, and this document has been described a kind of spring and a kind of distributor that uses this spring.This spring is the biplate type, and is shaped as the safety pin of an opening.Two lamellar bodies of spring link together, and form a curved elbow attachment portion that is folded to form by a metal tape.This curved elbow attachment portion not only connects two lamellar bodies, also guarantees the elastic recoil function.Therefore in fact, very little distortion only takes place in lamellar body, is moving of the curved elbow attachment portion mutual rotation that guarantees lamellar body.A shortcoming of this spring is, because metal self bending, there is certain thickness curved elbow attachment portion.The attachment portion can not show as a clearly folding line, because like this function of spring no longer is guaranteed, perhaps even poorer, the attachment portion may be destroyed, and therefore two sheets are known from experience separately.Particularly when spring be used in one be used for as the distributor of specimen holder at magazine in the time can this thing happens.Magazine is stacked, and the weight on the magazine bottom being deposited in may be very big.Spring not only is compressed, and its attachment portion is crushed fully, can destroy its elastic characteristic like this.In case from magazine, take out distributor even can not re-use.

Summary of the invention

The objective of the invention is to overcome these problems, propose a kind of can farthest the flattening and destroy dangerous spring.

For this reason, target of the present invention is a spring, it is characterized in that, this spring comprises two lamellar bodies, two lamellar bodies link together by at least one attachment portion, and at least one lamellar body comprises a bump, when by at the pressure on the bump lamellar body being deformed so that the lamellar body band during to another lamellar body, this bump is at least one location that reclines another lamellar body that reclines, and the attachment portion is in outside this zone that reclines.

The attachment portion does not participate in or participates in hardly the elasticity of spring in other words, and be mainly used in two lamellar bodies is linked together, and therefore constitutes the single component of a monolithic.When this also illustrated pressure spring, the attachment portion was not the same district that reclines that constitutes with situation among the file US-2 432 288.In other words, the attachment portion is not born or is born hardly to pressure spring is applied to power on the spring, and this power district that reclined fully or almost completely bears.In addition, the attachment portion is elastically deformable not substantially.

In addition, spring has smooth and the shape plane under maximum compression.

According to an embodiment highly significant, the district that reclines that has a lamellar body of protuberance comprises that two contact basic on another lamellar body that are suitable for reclining are the side of straight line.In addition, the attachment portion forms at one of lamellar body basic vertical with side place, transverse bending limit.The attachment portion is preferably formed as a broken line, and its axle is vertical substantially with side.According to the embodiment of a practicality, spring comprises two attachment portions that lay respectively near the end, transverse bending limit of side.

According to another aspect of the present invention, two lamellar bodies are symmetrical in a plane of passing through between them, make each lamellar body comprise a bump and the zone that reclines, when spring is compressed, and the contact that reclines mutually of the zone that reclines of lamellar body.

Another significant being characterised in that, described at least one attachment portion can make the district that reclines of the lamellar body device of contact that keeps reclining mutually during as pressure spring.

Target of the present invention also is a kind of Dispenser for fluid product, and this distributor comprises:

-one storage that described fluid product is housed, this storage are provided with at least one action wall, apply a pressure on the action wall, so that reduce the volume of storage,

-one dispensing orifice, fluid product distributes by this hole,

This distributor is characterised in that storage is equipped with an above-described spring.In addition, a dismountable obstruction part stops up dispensing orifice, therefore storage is hedged off from the outer world.Stop up dispensing orifice as long as stop up part, spring just is tied, so that occupy a minimum volume.Therefore, in case take out to stop up part, spring passes dispensing orifice by gas and enters storage and expand, so that increase the volume of storage.

In a this Dispenser for fluid product, use this spring advantageous particularly, because spring is put in the storage only need make distributor the time, and not too need to worry its particular orientation, because spring can autofitting.Therefore spring orientation and the operation in advance of catching spring have been saved.In addition, can make this spring at low cost.

In addition, spring is in place in storage, and its side is parallel with the edge that distributor leads to dispensing orifice.

In addition, spring forms at least one abutment surface, this surperficial fundamental sum with its contact blade in identical plane.

Description of drawings

More in depth describe the present invention referring now to accompanying drawing, accompanying drawing provides the embodiment of a spring according to the invention and the use in a special Dispenser for fluid product as non-limiting example.

Accompanying drawing is as follows:

-Fig. 1 is the plan view of a spring according to the invention at the prefabrication state;

-Fig. 2 is the sectional drawing of Fig. 1 medi-spring;

-Fig. 3 is Fig. 1 and 2 medi-spring is prepared use in finishing stage a perspective view;

-Fig. 4 is the sectional drawing of Fig. 3 medi-spring;

-Fig. 5 passes a vertical cross-section figure who uses the Dispenser for fluid product of Fig. 1-3 medi-spring, and described distributor does not use;

-Fig. 6 is the sectional drawing after distributor uses among Fig. 4.

Embodiment

For the embodiment of the spring according to the invention shown in the

presentation graphs

3,4, at first explain its manufacture with reference to Fig. 1,2.

In these figure, can see, spring 4 from one preferably horizontal plate make, but also can will explain this point below along axle protuberance.As seeing on Fig. 2, plate is the plane fully here.This plate can be made by any suitable material, as plastics, but preferably is made of metal, as spring steel.Imagine that certainly spring steel covers a plastic protective layer.As can in Fig. 1, seeing, sole plate be shaped as rectangle or square, but also can consider other shape.This plate is provided with a microscler center window 40, and window 40 is divided into two lamellar bodies 41 and 42, two lamellar bodies 41 and 42 attachment portions 43 and 44 by two side band shapes to plate and is connected to each other.Therefore, lamellar body 41 comprises that a following widthwise edge 411 towards window 40, one go up widthwise edge 412 and two sides 413 and 414.Similarly, lamellar body 42 comprises a last widthwise edge 421 towards window 40, following widthwise edge 422 and two sides 423 and 424.Because center window 40 is microscler, connecting band 43 and 44 is very narrow, and therefore two long limits and two minor faces are arranged.One of them long limit forms between the side 413,423 and the attachment portion between 414,424, and another side forms a narrow edge of microscler center window 40.For minor face, they form and the attachment portion of lamellar body at transverse edge 411 and 421 places.

If plate is not to swell from the beginning, then make the plate protuberance of such cutting then, promptly be bent.In fact, as mentioned above, sole plate can have protuberance or crooked shape from the beginning.'s this situation when spring is made of plastics.But the protuberance of spring or crooked process can realize in cutting window 40 backs.Protuberance realizes that along a transverse axis mode of the extension of transverse axis is that widthwise edge 411,412,421,422 has protuberance or crooked shape at last, and edge 413,414,423,424 still is straight line fully.What be readily appreciated that is, connecting band 43 and 44 is because very narrow and still be the plane substantially.

The final stage of making spring is to make plate folding at connecting band 43,44 places self.The result who does like this takes protuberance lamellar body 41 on another protuberance lamellar body 42 to, can see as Fig. 3,4.Because lamellar body 41 and 42 has swelled when sole plate is also folding, their bumpy curve in Fig. 3,4 net shape relatively.Therefore, lamellar body 41 and 42 contacts with each other at their side 413,423 and 414,424 places respectively.Do not need to make the side 413,423 of lamellar body 41 and 42 and 414,424 rest positions to contact with each other, when promptly being applied on the spring without any compressive force at spring.As long as the folding lamellar body side of realizing at connecting band 43 and 44 places separately that makes overlaps each other, realizes that a splicing that does not have an attachment portion reclines to contact to get final product that connecting band 43 and 44 forms broken line 430,440 respectively.This is possible, because side is a straight line, and widthwise edge is crooked or protuberance.Because connecting band 43 and 44 narrower than the length of widthwise edge, although therefore have connecting band 43 and 44, protuberance the folding of plate is possible.Therefore, connecting band 43 and 44 can fold, and forms broken line 430 and 440, and can not influence or eliminate the protuberance of lamellar body 41 and 42.

What be readily appreciated that is, the effect of the power at a center that is applied to lamellar body 41 and 42 is that edge 413,423 and 414,424 is acutely reclined mutually, the purpose that applies this power be a lamellar body band to another lamellar body, reduce their protuberances separately.Therefore we can say also that lamellar body 41 is at its side 413 and 414 two zones that recline that form lamellar body 42 that reclines.Symmetry therewith be we can say lamellar body 42 lamellar body 41 that reclines at two places, districts that recline that its side 423,424 forms.Therefore can pressure spring, two lamellar bodies 41 and 42 are almost contacted with each other on their whole length, all or almost eliminate their protuberance, make spring be in the state on a smooth and plane, its thickness approximates the cumulative thickness of two lamellar bodies 41 and 42 greatly.

It is pointed out that the connecting band 43 and 44 that forms the connection set that connects two lamellar bodies 41 and 42 does not participate in or participate in hardly the elasticity or the rigidity of spring, the elasticity of spring or rigidity are guaranteed by the protuberance of lamellar body 41 and 42 fully.No matter spring is in static or the position of compression fully, and in fact the broken line 430,440 of connecting band 43,44 is in identical state, because they are in contiguous widthwise edge 412 and 422 and the corner of side 413,423 and 414,424 of connecting of lamellar body.Broken line 430 and 440 even can be perfectly clear, very open and flat, make spring even at the not obvious cumulative thickness of the total thickness at broken line 430 and 440 places greater than two lamellar bodies 41 and 42.In fact, broken line 430 is connected with the hinge of 440 resiliently deformables during not as length of spring compressed.Therefore even the very open and flat shape can keep spring static the time therefore, it bears any distortion hardly.Therefore connecting band 43,44 is as two lamellar bodies 41 and 42 devices that link together, so that realize the single component of a monolithic.They also are used to make edge 413,423 and 414,424 to keep aiming at fully, and these edges still splice fully and aim at when making pressure spring.Say that more at large attachment portion 43 and 44 makes two lamellar bodies 41 and 42 can keep overlapping fully, and the recline contact of an edge to the edge arranged.

Therefore the district that reclines mutually that we can say the lamellar body 41,42 that lamellar body 41 and 42 side separately 413,423,414,424 form does not comprise being connected of material, does not promptly comprise the bridge of material, because connecting band 43 and 44 is positioned on the widthwise edge 412,422.Be not this situation in the file of above-mentioned prior art, in these files, the attachment portion that connects two lamellar bodies also helps the elastic characteristic of spring.When using spring of the present invention, promptly very open and flat even broken line 330,340 is very obvious, the elasticity of spring also can guarantee, because lamellar body 41 that elasticity only reclines by their side-walls and 42 protuberance obtain.In addition, because these broken lines are not worked, therefore there is not the danger that destroys.

In the embodiment who describes just now, two lamellar bodies 41 and 42 swell, and their side reclines mutually.But can imagine and have only lamellar body protuberance and another lamellar body is the enforcement modification plane or that have other shapes fully.Also can imagine lamellar body to other direction protuberance, and be connected to each other that the global shape that makes spring is an X-shaped by a unique center connecting band.In this case, the zone contact passed through at the jack shaft of a lamellar body of two lamellar bodies.

Spirit of the present invention is, spring guarantees its elastic characteristic by the shape of lamellar body, lamellar body in splicing but unconnected one in district of reclining on another, and the attachment portion that connects two lamellar bodies only is used to connect lamellar body (not having elastic hinge to connect), and is overlapping to guarantee stablizing of lamellar body.

Draw thus, top description preferentially is used for the Dispenser for fluid product shown in a Fig. 5 and 6.

In this indefiniteness embodiment, distributor can be made from two soft compound film sheets 1,2, and the

periphery

11,12 of two diaphragms welds together, and makes and forms a volume that equates substantially with the volume of a fluid product storage 3 between them.Inserting member 5 also can be between two blades 1 and 2: this inserting member 5 forms a dispensing orifice 50 and grooves, and a hole fiber 6 can be arranged in this groove, so that extend in the storage 3.Hole fiber 6 is used for soaking into the fluid product that is contained in storage 3.In case this hole fiber soaks into product, only need make an airflow cross the hole fiber, so just produce a two-phase and distribute at dispensing orifice 50 places of inserting member 5.In the front of dispensing orifice 50, two blades that weld together 1,2 form one and can tear or flexible reed 12, and reed 12 stops up dispensing orifice 50, and storage 3 is hedged off from the outer world.

According to the present invention, storage 3 comprises a spring 4 between two blades 1 and 2.Can see that as Fig. 2 spring 4 acts on the wall 1 of distributor at least, this wall can be the action wall, so that increase the internal volume of storage 3.According to a significant especially feature, stop up dispensing orifice 50 as long as stop up part 12, therefore storage 3 is hedged off from the outer world, spring 4 just is constrained on its complete compressed state.In other words, storage 3 is sealed during fabrication, and spring is constrained on its most compressed state, therefore makes the volume minimum of storage.In this state shown in Figure 1, storage 1 in fact only contains fluid product, has little or no gas.Because storage 3 is isolated fully with the external world by stopping up part 12, the atmospheric pressure that is applied on the wall 1,2 of storage can not expand spring 4 in storage 3.Therefore distributor is deposited in this state before use, and its thickness is especially little, and this thickness is formed by the cumulative thickness that the thickness of the spring 4 that is in complete compressive state adds upper diaphragm 1 and 2 substantially.Therefore spring 4 forms a minimum volume, and fluid product is stored in this volume, does not in fact bear any pressure.Therefore, without any the danger of leaking owing to the fragmentation of storage 3.For example such distributor can be clipped in the magazine, because it is smooth fully, and withstand voltage especially.

Stop up part 12 in case take out, air just can enter in the storage 3 by dispensing orifice 50, and spring 4 can be expanded in storage, to increase the internal volume of storage.Therefore storage 3 is full of fluid product and gas, and gas generally is air.For the distribution of atomized product, for example only need with thumb action on wall, the effect of antagonistic spring 4 passes air to soak into the fiber 6 of fluid product to be discharged.The air that passed the fiber 6 that soaks into fluid product produces the two-phase atomizing at dispensing orifice 50 places.In case loosen the pressure on action wall 1, action wall 1 returns to its shape shown in Figure 6 owing to the elastic reaction of spring 4.

When taking out the volume that stops up part 12 increase storages 3, spring 4 plays a starter, and plays a return spring by the pressure action on the action wall 1 time.

Because this spring can not put in the storage when making distributor with almost having particular orientation, the spring advantageous particularly of describing with reference to Fig. 1-4 above in this class distributor, using, because spring is autofitting always almost, each lamellar body contacts with a blade respectively.But the direction of spring lamellar body preferably widthwise edge is parallel with the top that distributor leads to dispensing orifice.Among Fig. 5,6, owing to be convenient to expression, spring rotates 90 °.In addition, spring does not have the danger of damage at the state especially flat that compresses fully, can realize the distributor of especially flat like this, and owing to above-described reason, this is favourable.On the other hand, it is pointed out that abutment surface on the spring that is positioned at lamellar body protuberance top at the blade that contacts with this surface on same plane, make the action of spring not produce the component of force that makes spring that mobile trend in storage be arranged.Therefore spring keeps static in storage, and the spring of file FR-2 813 364 is not this situation.

Because the spring of this anti-especially fragmentation might be realized a kind of distributor that does not have shape-memory from a kind of simple packing of fluid product.

Claims

1. spring (4), it is characterized in that, comprise two lamellar bodies (41,42), described lamellar body links together by at least one attachment portion (43,44), at least one lamellar body comprises a bump, when the bump of the described lamellar body of compressing so that its band is produced resiliently deformable to another lamellar body, described bump is located to abut on another lamellar body at least one district that reclines (413,414,423,424), described attachment portion this recline distinguish beyond.

2. spring as claimed in claim 1 is characterized in that, described attachment portion is elastically deformable not substantially.

3. spring as claimed in claim 1 or 2 is characterized in that, the shape of described spring under maximum compression is plane and smooth.

4. as each described spring in the above-mentioned claim, it is characterized in that the described district that reclines that has the lamellar body of bump comprises that two are that the side of straight line (413,414,423,424), described side are suitable for contacting with an other lamellar body substantially.

5. spring as claimed in claim 4 is characterized in that, described attachment portion is located to form at a crooked widthwise edge (412,422) of described lamellar body, and described widthwise edge is basically perpendicular to described side ground and extends.

6. as claim 4 or 5 described springs, it is characterized in that described attachment portion forms a broken line (430,440), its axle is basically perpendicular to described side ground and extends.

7. as claim 5 or 6 described springs, it is characterized in that described spring comprises two attachment portions (43,44), described attachment portion lays respectively near crooked widthwise edge (412, the 422) end the described side.

8. as each described spring in the above-mentioned claim, it is characterized in that, described two lamellar bodies are with respect to a plane symmetry of passing through between them, thereby, each lamellar body comprises a bump and a district that reclines, when described spring was compressed, the contact that reclines was mutually distinguished in reclining of described lamellar body.

9. spring as claimed in claim 8 is characterized in that, described at least one attachment portion makes and can keep reclining of described lamellar body to distinguish the contact that stably reclines when length of spring compressed as holding device.

10. Dispenser for fluid product comprises:

-one storage (3), it is equipped with described fluid product and is provided with at least one action wall (10), can apply a pressure on described action wall (10), so that reduce the volume of described storage,

-one dispensing orifice (50), described fluid product distributes by described dispensing orifice (50),

Described distributor is characterised in that described storage (3) comprises one and meets each described spring (4) in the aforesaid right requirement.

11. distributor as claimed in claim 10, it is characterized in that, one dismountable obstruction part (12) stops up described dispensing orifice (50), therefore described storage (3) is hedged off from the outer world, as long as described obstruction part stops up described dispensing orifice, described spring (4) is just restrained, thereby occupies a minimum volume.

12. distributor as claimed in claim 11 is characterized in that, in case take out described obstruction part, because air passes described dispensing orifice and enters described storage, described spring (4) is unfolded, thereby increases the volume of described storage.

13. as claim 10,11 or 12 described distributors, it is characterized in that described spring is arranged in described storage, its side is parallel to the splitter edge ground extension that described dispensing orifice leads to.

14. as each described distributor in the claim 10 to 13, it is characterized in that described spring forms at least one abutment surface, the corresponding thin slice that described abutment surface contacts with it extends in same plane substantially.