Source bottle and refillable dispenser

Abstract

The invention relates to a source bottle (S) intended to refill a refillable dispenser (N) comprising a refillable tank (R) and a filling and venting system (R5) connected to the refillable tank (R), the source bottle (S) comprising a source tank (S1) and a pump (S2) defining an axis of movement and a pump chamber (C), the maximum dose of the pump (S2) is advantageously substantially equal to the maximum volume of the refillable tank (R), characterized in that the pump (S2) comprises or comprises a cross-flow transfer member (St) connectable to the filling and venting system (R5) of the refillable dispenser (N), to inject the fluid product from the pump chamber (C) into the refillable tank (R) and to discharge air from the refillable tank (R) into the source tank (S1).

Description

[0001] The present invention relates to a source bottle intended to refill a refillable fluid product dispenser and a dispensing assembly comprising a source bottle and a refillable dispenser. The present invention also relates to a refillable dispenser suitable for filling with a source bottle. Advantageous application areas of the present invention are the perfume, cosmetic and pharmaceutical fields. Refillable dispensers of this type are usually designated under the term "travel" dispenser. Typically, refillable dispensers of this type have a small capacity tank of up to about 10 milliliters (mL).

[0002] In the prior art, document EP2977109 is known, which describes a refillable source bottle / dispenser assembly, the source bottle of which comprises a pump, which is provided with a reflux valve so that a portion of the contents of the pump chamber can be discharged directly into the source tank. On the other hand, the refillable dispenser comprises a tank, which is provided with an exhaust valve, which directly discharges air from the tank to the outside when the fluid is injected into the tank of the refillable dispenser by the pump of the source bottle. In this document, it is not explained how and when the reflux valve is opened when the tank of the refillable dispenser is filled. A priori, there is nothing to prevent the fluid product injected into the tank of the refillable dispenser from leaking through the exhaust valve. This leads to contamination of the refillable dispenser, which is unacceptable.

[0003] Document EP3310491 is also known, which describes a filling interface installed between two bottles, which interface comprises, on the one hand, at least one liquid passage, arranged between the two bottles for transferring liquid under pressure from the first bottle to the second bottle, which is turned upside down, through the open discharge orifice of the pump of the second bottle, and, on the other hand, at least one air passage, for venting the air contained in the second bottle, which is turned upside down, towards the outside of the bottle. The disadvantage of this interface is that, at the end of filling of the second bottle, which is turned upside down, the fluid product leaks through the air discharge passage. This is why the interface is provided with a piece of absorbent material at the outlet of the air discharge passage, such as an annular piece arranged around the structure of the interface, in order to absorb any liquid flow that may appear after all the air inside the second bottle has been discharged to the outside. The interface is therefore surrounded by an annular piece impregnated with fluid, which is unacceptable.

[0004] The object of the present invention is to overcome the above-mentioned disadvantages of the prior art by defining a refillable source bottle / dispenser assembly which enables the refillable dispenser to be filled and the air of the refillable dispenser to be vented without the risk of leakage of the fluid product. The fluid product injected into the tank of the refillable dispenser by the pump of the source bottle vents the air contained in the tank of the refillable dispenser without venting any excess or overflowing fluid product from the refillable dispenser and thus without the risk of contaminating the refillable dispenser or the source bottle. The cleaning of the refillable dispenser and the source bottle is a basic object of the present invention.

[0005] To achieve this object, the present invention first proposes a source bottle intended to refill a refillable dispenser, the refillable dispenser comprising a refillable tank and a filling and exhaust system connected to the refillable tank, the source bottle comprising a source tank and a pump defining a movement axis and a pump chamber, the maximum dose of the pump advantageously being greater than the maximum volume of the refillable tank, characterized in that the pump comprises or contains a cross-flow transfer member which can be connected to the filling and exhaust system of the refillable dispenser to inject fluid from the pump chamber into the refillable tank and discharge air from the refillable tank into the source tank.

[0006] Therefore, the air inside the refillable tank is discharged into the source tank through the filling and exhaust system of the refillable dispenser and the cross-flow transfer member incorporated into the pump of the source bottle. Therefore, even if excess or overflowing fluid product is injected into the refillable tank from the source bottle by the pump, the excess or overflowing fluid product will be discharged into the source tank through the same path as the air inside the refillable tank. Therefore, there is no longer any risk of fluid product leakage at the end of filling.

[0007] Unlike the system of document EP3310491, which comprises an interface fitted between two bottles, the cross-flow transfer member of the present invention is an integral part of the source bottle, and more specifically of the pump of the source bottle. Once the filling operation is completed, the cross-flow transfer member of the present invention cannot be removed from the pump as is the case with the interface of document EP3310491.

[0008] Advantageously, the cross-flow transmission member can include a hollow exhaust rod, which is capable of moving between a static position and a depressed position, wherein the hollow exhaust rod defines an outer end for being connected with a filling and exhaust system and an inner end for being communicated with a source tank, wherein the hollow exhaust rod advantageously passes through the pump chamber in an axial and centered manner, wherein the inner end of the hollow exhaust rod is closed in the static position, and is communicated with the source tank in the depressed position. Therefore, the exhaust rod makes it possible to allow air to enter directly into the source tank from the filling and exhaust system of the refillable dispenser without entering into the pump chamber of the source bottle. It can be said that the exhaust rod shunts the pump chamber, but passes through the pump chamber. Therefore, the air path does not bypass the pump, but preferably passes through the pump axially without mixing with the fluid product inside the pump chamber.

[0009] Advantageously, the cross-flow transfer member may include: a sleeve defining an outer flange for connection to a filling and exhaust system and an inner edge for communicating with a pump chamber, through which a hollow exhaust rod passes; a return spring, which advantageously acts between the sleeve and the hollow exhaust rod to push the hollow exhaust rod to a stationary position, in which the inner edge is closed by the hollow exhaust rod and communicates with the pump chamber in a depressed position. The sleeve can be regarded as a conventional valve stem, the internal conduit of which makes it possible to lead the fluid from the outlet valve downstream out of the pump chamber. In the present invention, since the internal conduit of the conventional valve stem is crossed by the hollow exhaust rod, the fluid product is conveyed around the exhaust rod. The fluid product flows upward toward the filling and exhaust system through the fixed sleeve, while the air flows downward directly into the source tank through the exhaust rod.

[0010] According to another feature of the source bottle, the pump chamber may include a bellows, which defines a fixed base, which forms an inlet for the fluid product and a passage for the hollow exhaust rod, the bellows also defines a deformable membrane and an anchoring collar, the pump chamber also includes a cover mounted on the anchoring collar, the cross-flow transfer member is fixed to the cover, and the sleeve is advantageously made into one piece with the cover. The sleeve moves in one piece with the cover, and the cover can move back and forth axially and the hollow exhaust rod can move back and forth axially in the sleeve. In the static position of the exhaust rod, the exhaust rod is closed at its inner end by a passage formed in the fixed base of the bellows. In the depressed position, the inner end of the exhaust rod protrudes from the passage and extends into the source tank.

[0011] In other words, the sleeve together with the exhaust rod forms an outlet valve of the pump chamber, which is opened by the axial movement of the exhaust rod relative to the sleeve. In addition, the exhaust rod and the pump base form an air outlet valve, which is opened by the axial movement of the exhaust rod relative to the pump base. The air and fluid product flows are not only crossed, but also concentric and advantageously axially centered.

[0012] The invention also defines a dispensing assembly comprising a source bottle as defined above and a refillable dispenser comprising a dispensing member such as a pump or a valve provided with a dispensing head, a refillable tank, and a filling and venting system connected to the refillable tank, characterized in that the filling and venting system comprises a fluid filling valve and an air venting valve, both valves being manually and simultaneously actuable when the refillable dispenser is connected to the source bottle. Considering that the connection is made by axial pressing contact, the actuation of the valve is also axial.

[0013] According to an advantageous aspect, the filling and exhaust system may include an exhaust duct, which is connected to the air exhaust valve and extends toward the dispensing member into the refillable tank. Therefore, the free end of the exhaust duct is located at the top of the refillable tank so that air is discharged at the top of the tank. When the fluid product injected into the refillable tank arrives at the free end of the exhaust duct, the filling is complete. In fact, there may be an excessive amount of injected fluid product, but the excessive injected fluid product will be directly discharged to return to the source tank by the exhaust duct, the air exhaust valve and the hollow exhaust rod. It is ensured that both the ideal filling and the remaining amount of air sufficient to absorb pressure and temperature changes in the refillable tank are ensured.

[0014] Advantageously, the air venting valve may be arranged axially centrally and the fluid filling valve extends around the air venting valve. This configuration corresponds to that of a cross-flow transmitting member in which a hollow venting stem is surrounded by a sleeve.

[0015] Preferably, the filling and exhaust system may include an axially connected well communicating with the air exhaust valve and a concentric sliding bush communicating with the fluid product filling valve. The outer connection end of the hollow exhaust rod is adapted to be in axial pressing contact with the axially connected well so as to move both the well and the rod. In addition, the outer connection flange of the sleeve is adapted to form a sealing sliding contact with the concentric sliding bush.

[0016] According to a practical embodiment, the filling and exhaust system may include a movable valve component, which forms an axially connected well, a movable axial exhaust valve member and a movable peripheral filling valve member, and the filling and exhaust system also includes a fixed valve seat component, which forms an axial exhaust valve seat that cooperates with the movable axial exhaust valve member and a peripheral filling valve seat that cooperates with the movable peripheral filling valve member. Therefore, the axially connected well can be axially moved relative to the fixed concentric sliding bushing.

[0017] The present invention also defines a refillable dispenser, which includes a dispensing member such as a pump or a valve provided with a dispensing head, a refillable tank, and a filling and exhaust system connected to the refillable tank, the filling and exhaust system including a fluid product filling valve and an air exhaust valve, both valves can be manually and simultaneously actuated when the refillable dispenser is connected to a source bottle, characterized in that the filling and exhaust system includes an exhaust pipe connected to the air exhaust valve and extending toward the dispensing member into the refillable tank. The refillable dispenser is provided with an exhaust pipe through its air exhaust valve to become a part of the common inventive concept with the source bottle to realize a pump provided with a cross-flow transfer member to exhaust air from the refillable tank into the source tank. In fact, air can only be discharged when the air inside the refillable tank is collected near the dispensing member. In the absence of this exhaust pipe, it is impossible to exhaust the air, making it equally impossible to fill and use the source bottle of the present invention.

[0018] The invention is described more fully hereinafter with reference to the accompanying drawings, which show embodiments of the invention by way of non-limiting examples.

[0019] In the attached picture:

[0020] Figure 1 is a vertical cross-sectional view through an assembly of the present invention, the assembly comprising a source bottle and a refillable dispenser to be mounted on the source bottle;

[0021] Figure 2 is with Figure 1 a similar view of a view of the source bottle wherein the refillable dispenser is mounted on the source bottle;

[0022] Figure 3 yes Figure 1 , which shows an upper portion of a source bottle and a lower portion of a refillable dispenser ready to be mounted on the source bottle;

[0023] Figure 4 yes Figure 2 , which shows an upper portion of the source bottle engaged with a lower portion of the refillable dispenser;

[0024] Figure 5 yes Figure 3 A further substantially enlarged view of

[0025] Figure 6 yes Figure 4 A further greatly enlarged view of .

[0026] First refer to Figure 1 and Figure 2 , in order to describe the structure of the source bottle S and the refillable dispenser N or "travel" dispenser N in an integrated manner.

[0027] The refillable dispenser N may be of completely conventional type, except for its filling and venting system R5, which will be referred to as Figure 5 to Figure 6 Described in more detail. Thus, the refillable dispenser N or "travel" dispenser N comprises a refillable tank R forming at its upper end a neck R1 and at its lower end a receiving housing R2 for a filling and venting system R5. In a completely conventional manner, the neck R1 of the tank R is provided with a dispensing head T comprising a dispensing member, in particular a pump P, which is covered with a button B. The pump P is provided with a dip tube Tp which extends into the tank R as far as the bottom of the tank R where the filling and venting system R5 is located. For fastening on the neck R1, a fastening ring F is provided which may be a crimping ring, for example.

[0028] By pressing the button B, the fluid product is placed under pressure in the pump P, the outlet valve of which will open to allow the fluid to travel up to the button B, which is advantageously provided with a nozzle for spraying. Once the button B is released, the fluid product coming from the tank R is sucked into the pump chamber of the pump P through the dip tube Tp. This operating cycle is completely conventional for dispensing heads in the perfumery, cosmetics and pharmaceutical fields.

[0029] Without going into the structural details of the filling and venting system R5, it can still be noted that this system R5 comprises a venting duct 66 which extends into the tank R until it is close to the pump P or the neck R1. In other words, the free end of the venting duct 66 is located near the connection of the dip tube Tp with the pump P.

[0030] The source bottle S firstly comprises a source tank S1 which may have any shape and be made of any suitable material. The source tank S1 forms a neck S11 on which is mounted a pump S2 which together with the filling and exhaust system R5 of the refillable dispenser N is the core of the invention.

[0031] Without going into too many details, the pump S2 comprises a pump chamber C substantially delimited by a bellows 1 associated with the cover 2. According to the invention, this pump chamber C is also provided with a cross-flow transmission member St substantially comprising a sleeve 22 and a hollow exhaust rod 4, as described below. Very briefly, the rod 4 comprises an outer connection end 41 intended to come into contact with the refillable tank N in a pressing manner and an inner communication end 42 which is closed in the rest position or communicates with the source tank S1 in the actuated or depressed position. In fact, in the position corresponding to the rest position of the pump S2, the pump chamber C is ... Figure 1 It can be noted that the inner communicating end 42 is located at the bottom of the pump S2. On the other hand, in the actuated position or depressed position corresponding to the pump S2, Figure 2 In FIG. 4 , it should be noted that the inner communicating end 41 protrudes mostly into the interior of the source tank S1 , so that communication is established between the tank S1 and the interior of the hollow exhaust rod. Figure 2 It can also be noted that the volume of pump chamber C is less than Figure 1 The volume of the pump chamber C in the pump is actuated by the axial downward pressing of the “travel” dispenser N on the pump S2 , and more specifically on the outer connection end 41 of the hollow exhaust rod 4 , which moves axially relative to the sleeve 22 .

[0032] Reference Figure 3 , we can see the pump S2 at rest and the filling and exhaust system R5 of the "travel" dispenser N.

[0033] As for the pump S2, the bellows 1 comprises a fixed and rigid base 11 defining an annular fixed stud 111, a passage 112 and a fluid inlet 113. The passage 112 is centered on the axis X of the pump, while the inlet 113 is offset, Figure 3 The passage 112 makes it possible to put the pump chamber C in direct communication with the source tank S1. The bellows 1 also comprises a deformable membrane 12 forming an annular fold. The membrane 12 is squeezed along the axis X. At the end of this membrane 12, the bellows 1 forms an anchoring collar 13 which is rigid, just like the fixing stud 111. The bellows 1 can be made as a single piece from a flexible material such as an elastomer.

[0034] The cover 2 is sealingly engaged with the anchor collar 13 so as to define, together with the bellows 1 , a pump chamber C. The cover 2 comprises a top plate 21 and a peripheral skirt 23 of generally cylindrical shape.

[0035] The cross-flow transfer member St is formed at the plate 21 of the cover 2. More precisely, the sleeve 22 is formed in one piece with the plate 21. The sleeve 22 comprises an outer connecting flange 221 and an inner communicating edge 222. The inner edge 222 extends radially inwards so as to form an open bottom for the sleeve 22.

[0036] The hollow exhaust stem 4 extends along the axis X through the sleeve 22 and the pump chamber C. The outer connection end 41 protrudes slightly from the outer connection flange 221. The inner communication end 42 of the hollow exhaust stem 4 forms a lateral opening 421, which is located at the passage 112 so as to close the passage 112. The stem 4 also includes a valve collar 44, which protrudes radially outwards and is located below the sleeve 22 so as to be in sealing contact with the inner communication edge 222. The valve collar 44 thus forms, together with the inner edge 222, an outlet valve of the pump chamber C. In the case of valve closure, the stem 4 is maintained in this rest configuration by the action of the spring 24, which bears on the shoulder 43 of the stem 4 on the one hand and on the inner edge 222 on the other hand. The action of this spring 24 presses the valve collar 44 against the inner edge 222 in a sealing manner.

[0037] In order to keep the pump S2 on the neck S11 of the source tank S1, a fastening ring 3 is also provided, which includes a threaded skirt 31 threadedly engaged with the neck S11 of the source tank S1. The skirt 31 is also engaged with the fixed short column 111 of the bellows 1. The ring 3 also forms a wall 32, which extends above the neck S11 and is formed with an opening for engaging the passage 112. The wall also forms a valve seat 33 for the ball 35 and a pipe retainer 34, in which a dip tube 36 is engaged, which extends in the source tank S1 until the dip tube 36 is close to the bottom wall of the source tank S1. The fluid inlet 113 is directly connected to the space in which the ball 35 is confined. The seat 33 and the ball 35 together form a fluid product inlet valve for the pump chamber C. In addition, the ring 3 forms a cylindrical guide bushing 37, around which the skirt 23 of the cover 2 is engaged. The complementary shoulders can define the rest position of the pump S2.

[0038] Reference Figure 4 , the pump S2 can be seen in the actuated or depressed position. The pump is actuated by axially pressing the refillable dispenser N, in particular on the outer connection end 41. Figure 4In the embodiment of the present invention, it should be noted that the film 12 is squeezed and the valve is opened because the valve collar 44 is separated from the inner edge 222 at this time. Therefore, the fluid product under pressure in the pump chamber C can escape into the sleeve 22 through the opened valve. The fluid product arrives at the filling and exhaust system R5 of the "travel" dispenser N from the sleeve 22, and the structure and operation of the filling and exhaust system R5 will be explained below. It should also be noted that the inner end 42 of the rod 4 has been displaced from the passage 112 to the inside of the source tank S1. The lateral opening 421 of the inner end 42 of the rod 4 is directly connected to the upper part of the source tank S1 filled with air. Therefore, the air trapped in the tank R of the refillable dispenser N can be discharged into the hollow exhaust duct 4 through the exhaust duct 66, the filling and exhaust system R5 to reach the upper part of the source tank S1 filled with air. The outlet valve of the pump chamber C is opened and the lateral opening 421 is placed in communication with the source tank S1 by two simultaneous and nested movements, namely the axial movement of the hollow rod 4 relative to the sleeve 22 and the axial movement of the sleeve 22 by squeezing the flexible membrane 12. The air passes through the pump chamber C and the fluid product is discharged from the chamber C through the sleeve 22 surrounding the rod 4 at the portion of the rod 4 located inside the sleeve 22.

[0039] When the pressing force on the refillable dispenser N is released, the return spring 24 returns the valve collar 44 to sealing contact with the inner edge 222, and the elasticity of the flexible membrane 12 returns the cover 2 to the sealing contact with the inner edge 222. Figure 3 In doing so, a vacuum is created in the pump chamber C which has the effect of drawing the fluid product through the dip tube 36 and the inlet valves 33, 35 which are forced into an open state.

[0040] Figure 5 and Figure 6 The filling and venting system R5 of the refillable dispenser N is shown in more detail, and the filling and venting system R5 is respectively Figure 5 is in its rest position and Figure 6 is in its open or actuated position.

[0041] As mentioned above, the filling and venting system R5 is received in a fixed and sealed manner inside a receiving housing R2 formed at the bottom of the tank R of the refillable dispenser N.

[0042] The filling and exhaust system R5 firstly comprises a body part 5 which is received in a fixed and sealed manner inside the receiving housing R2. The body part 5 comprises a sealing mounting ring 51 engaged with the housing R2 and a sliding bushing 53 accessible from the outside. The body part 5 also supports an annular seal 52 which is located inside the sealing mounting ring 51 and just above the bushing 53.

[0043] The system R5 also includes a bell 6, which is fixedly and sealingly mounted inside the body part 5. The bell 6 includes a housing 61, which is received inside the seal mounting ring 51 so as to hold the annular seal 52 in place. The bell 6 also forms an axial duct 62, which defines a sealing section 63 with a reduced diameter and a passage section 64 with an increased diameter. The sealing section 63 is arranged axially below the passage section 64. At the location where the housing 61 joins the duct 62, a number of openings 65 arranged around the duct 62 are provided.

[0044] The system R5 also includes a movable valve component 7, which can be axially moved back and forth inside the body component 5 and the bell-shaped member 6 against the return spring 8. The movable valve component 7 includes an axial connection well-shaped member 71, which opens downwardly toward the external connection end 41 of the source bottle S. The movable valve component 7 also forms an annular valve flange 72, which extends radially outward around the well-shaped member 71. The annular flange 72 sealingly abuts the annular seal 52 under the action of the spring 8. The component 7 also forms a joint 73, which defines a lateral opening 74, which is located at the sealing section 63 of the pipe 62 so as to seal the lateral opening 74. This position corresponds to Figure 5 The position shown in , ie the rest position.

[0045] The filling and venting system R5 thus forms a fluid filling valve formed by the annular flange 72 and the annular seal 52, and an air discharge valve formed by the joint 73 and the sealing section 63. The two valves can be actuated axially and simultaneously by moving the movable valve part 7 relative to the parts 5 and 6, which form fixed valve seat parts. It should also be noted that the air discharge valve is located on the axis X, while the filling valve is arranged concentrically or circumferentially around the air discharge valve. The same applies to the sliding bushing 53, which is arranged concentrically around the axial connecting well 71. In Figure 5 In the static position in the liner 53, the bottom of the well 71 is substantially or completely aligned with the bottom of the well 71. Thus, the refillable dispenser N can be added on the outer connection end 41 of the source bottle S and centered on the outer connection end 41 of the source bottle S.

[0046] exist Figure 6, the refillable dispenser N is pressed downwardly against the source bottle S along the axis X. It can be seen that the outer connection end 41 is engaged with the axial connection well 71. In addition, the outer connection flange 221 is engaged around the sliding bushing 53, thereby establishing a radial sliding contact between the outer connection flange 221 and the sliding bushing 53. It should also be noted that the outer connection end 41 has moved downward relative to the outer connection flange 221 against the spring 24. In addition, the movable valve component 7 has moved upward relative to the components 5 and 6 against the spring 8. The annular flange 72 is separated from the annular seal 52, and the radial opening 74 of the joint 73 is now located at the passage section 64 with an increased diameter. Therefore, the fluid product discharged through the sleeve 22 can flow inside the bushing 53, the seal 52, and the housing 61, and then pass through the opening 65 to reach the interior of the tank R of the refillable dispenser N. On the other hand, the air inside the tank R can be discharged through the exhaust pipe 66, the passage section 64, the lateral opening 74, the joint 73, the axial connecting well 41, the hollow exhaust rod 4, and then finally through the lateral opening 421 of the inner end 42 of the hollow exhaust rod 4 to reach the top part of the source tank S1 filled with air.

[0047] Regarding the order of the fluid product valves of the source bottle and the mobile dispenser, the valve 44, 222 of the source bottle S is preferably opened slightly before the valve 52, 72 of the travel dispenser N so that no overpressure is generated between the source bottle and the travel dispenser, which may cause leakage of the fluid product.

[0048] Having thus described the structure and operation of the filling and exhaust system R5, we can return to Figure 4 . In this actuated position or depressed position, the fluid product has been injected into the tank R of the "travel" dispenser N or refillable dispenser N. Advantageously, the dose of the fluid product delivered by the pump S2 is greater than the useful volume of the tank R. It is almost inevitable in any case that, at the end of filling, the excess or overflowing fluid product will be discharged through the exhaust duct 66, the filling and exhaust system R5 and the hollow exhaust rod 4. Considering that this excess or overflowing fluid product flows completely in the same way as the air inside the tank R and returns to the source bottle S, this is absolutely not a problem for the present invention. Therefore, there is no risk of leakage of the fluid product due to overflow from the tank R as in the case of the above-mentioned prior art documents.

[0049] It should be noted that the use of the hollow exhaust rod 4 only makes sense if the filling and exhaust system R5 of the refillable dispenser N is provided with an exhaust duct 66 extending towards the top of the tank. In fact, without this exhaust duct 66, the fluid product injected into the tank R would return directly to the source tank S1 through the hollow rod 4. Therefore, the hollow rod 4 and the exhaust duct 6 participate in the same common inventive concept. In addition, the exhaust duct 66 determines the amount of fluid product injected into the refillable tank, leaving a small amount of air, which makes it possible to absorb pressure and temperature variations.

[0050] Without going beyond the scope of the invention, the bellows 1 could be replaced by a conventional piston sliding in a cylindrical barrel. It is also conceivable to make the filling and exhaust system R5 with another structure, provided that it uses two axially actuated valves and the exhaust duct 66 .

Claims

1. A source bottle (S) for refilling a refillable dispenser (N), the refillable dispenser (N) comprising a refillable tank (R) and a filling and venting system (R5) connected to the refillable tank (R), the source bottle (S) comprising a source tank (S1) and a pump (S2) defining a displacement axis (X) and a pump chamber (C), characterized in that The pump (S2) comprises a cross-flow transfer member (St) which is connectable to the filling and exhaust system (R5) of the refillable dispenser (N) to inject the fluid product from the pump chamber (C) into the refillable tank (R) and to exhaust the air inside the refillable tank (R) into the source tank (S1).

2. The source bottle (S) according to claim 1, wherein: The cross-flow transfer member (St) includes a hollow exhaust rod (4), which is capable of moving between a static position and a depressed position, and the hollow exhaust rod (4) defines an outer end (41) for connecting to the filling and exhaust system (R5) and an inner end (42) for communicating with the source tank (S1). The hollow exhaust rod (4) advantageously passes through the pump chamber (C) in an axial and centered manner, and the inner end (42) of the hollow exhaust rod (4) is closed in the static position and is connected to the source tank (S1) in the depressed position.

3. The source bottle (S) according to claim 2, wherein: The cross-flow transfer member (St) comprises: a sleeve (22), the sleeve (22) defining an outer flange (221) for connecting to the filling and exhaust system (R5) and an inner edge (222) for communicating with the pump chamber (C), the hollow exhaust rod (4) passing through the sleeve (22); a return spring (24), the return spring (24) advantageously acting between the sleeve (22) and the hollow exhaust rod (4) so ​​as to push the hollow exhaust rod (4) to the static position, the inner edge (222) for communicating is closed by the hollow exhaust rod (4) in the static position, and is communicated with the pump chamber (C) in the depressed position.

4. The source bottle (S) according to claim 3, wherein: The pump chamber (C) comprises a bellows (1) defining a fixed base (11) forming a fluid inlet (113) and a passage (112) for the hollow exhaust rod (4), the bellows (1) also defining a deformable membrane (12) and an anchoring collar (13), the pump chamber (C) further comprising a cover (2) mounted on the anchoring collar (13), the cross-flow transfer member (St) being fixed to the cover (2), the sleeve (22) being advantageously made in one piece with the cover (2).

5. A dispensing assembly comprising: a. A source bottle (S) according to any one of the preceding claims, and b. a refillable dispenser (N) comprising a dispensing member (P) such as a pump or a valve provided with a dispensing head (B), a refillable tank (R), and a filling and venting system (R5) connected to the refillable tank (R), Characterized in that the filling and venting system (R5) comprises a fluid filling valve (52, 72) and an air venting valve (62, 73), both valves being actuable manually and simultaneously when the refillable dispenser (N) is connected to the source bottle (S).

6. The dispensing assembly according to claim 5, wherein: The filling and venting system (R5) comprises a venting duct (66) connected to the air venting valve (62, 73) and extending into the refillable tank (R) towards the dispensing member (P).

7. A dispensing assembly according to claim 5 or claim 6, wherein: The air venting valve (62, 73) is arranged axially centrally and the fluid filling valve (52, 72) extends around the air venting valve (62, 73).

8. Dispensing assembly according to any one of claims 5 to 7, wherein The filling and venting system (R5) comprises an axial connection well (71) communicating with the air venting valves (62, 73) and a concentric sliding bushing (53) communicating with the fluid filling valves (52, 72).

9. The dispensing assembly according to claim 8, wherein: The filling and exhaust system (R5) includes a movable valve component (7), which forms the axial connecting well (71), a movable axial exhaust valve member (73) and a movable peripheral filling valve member (72). The filling and exhaust system (R5) also includes a fixed component (5, 6), which forms an axial exhaust valve seat (63) that cooperates with the movable axial exhaust valve member (73) and a peripheral filling valve seat (63) that cooperates with the movable peripheral filling valve member (72).

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