CA1312846C - Container closure with a retractable turnspout - Google Patents
Container closure with a retractable turnspoutInfo
- Publication number
- CA1312846C CA1312846C CA000573048A CA573048A CA1312846C CA 1312846 C CA1312846 C CA 1312846C CA 000573048 A CA000573048 A CA 000573048A CA 573048 A CA573048 A CA 573048A CA 1312846 C CA1312846 C CA 1312846C
- Authority
- CA
- Canada
- Prior art keywords
- cap
- tube
- plug
- base
- turnspout
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D47/00—Closures with filling and discharging, or with discharging, devices
- B65D47/04—Closures with discharging devices other than pumps
- B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
- B65D47/2012—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge formed by a rigid spout outlet and an overcap, the spout outlet being either pushed into alignment with, or pushed through an opening in the overcap, upon rotation of the latter
Abstract
ABSTRACT
A closure of plastics material for containers for receiving and delivering liquids or pastes. The closure has a retractable turnspout. A plug for closing the container mouth has on its base an eccentrically disposed bush which rotatably carries a turret. Together with a transversely projecting tube the turret forms the turnspout. A liquid passage leads through the tube and turret and through the bush. Between the tube and bush a tap is formed to shut off the liquid passage. A cap engages over the plug and container mouth and is rotatable with respect to the plug. By virtue of rotation of the cap the tube is passed outwardly through a lateral opening in the cap and withdrawn again when rotated in the opposite direction. A shield upstanding from the plug base serves on the one hand to close the lateral opening in the cap, when in the closed position, and on the other hand to seal the outer end of the turnspout. A wall on the cap base has engaging edges for pivoting the tube out and in. For the purpose of further sealing, the turret can have in its interior a concentric hollow cylinder with a longitudinal slot for the passage of liquid and seal with respect to the wall of the bush when the tube is pivoted in. A tamper indicator can be produced by a tongue which can be broken away and which sits in the lateral opening in the cap or closely outside this opening.
A closure of plastics material for containers for receiving and delivering liquids or pastes. The closure has a retractable turnspout. A plug for closing the container mouth has on its base an eccentrically disposed bush which rotatably carries a turret. Together with a transversely projecting tube the turret forms the turnspout. A liquid passage leads through the tube and turret and through the bush. Between the tube and bush a tap is formed to shut off the liquid passage. A cap engages over the plug and container mouth and is rotatable with respect to the plug. By virtue of rotation of the cap the tube is passed outwardly through a lateral opening in the cap and withdrawn again when rotated in the opposite direction. A shield upstanding from the plug base serves on the one hand to close the lateral opening in the cap, when in the closed position, and on the other hand to seal the outer end of the turnspout. A wall on the cap base has engaging edges for pivoting the tube out and in. For the purpose of further sealing, the turret can have in its interior a concentric hollow cylinder with a longitudinal slot for the passage of liquid and seal with respect to the wall of the bush when the tube is pivoted in. A tamper indicator can be produced by a tongue which can be broken away and which sits in the lateral opening in the cap or closely outside this opening.
Description
~ 2~
CONTAINER CLOSURE WITH A RETRACTA~LE TURNSPOUT
The invention relates to a closure of plastics material on a container (particularly a bottle) which serves to receive and deliver liquids or pastes. The closure of this container has a retractable turnspout and also the components referred to in the precharacterising portion of Claim 1. The terms defined in the claims are also used in the following detailed statement.
Such a closure is disclosed in US-A-3847313. The turnspout mentioned therein is rotatable about an eccentric bush. The tube of the turnspout can be moved outwardly or inwardly by way of a pivotal movement. In the one extreme position it disappears completely within an actuating cap. This is the closed position. In the other extreme position it projects to a maximum extent out of a lateral opening in the cap.
This is the use position in which liquid can be delivered (poured or squirted) through the turnspout.
A valve in the liquid passage to the turnspout is so actuated that it is open in the use position and closed in the closed position. In the known closure an additional movement of the turnspout is necessary, namely parallel to the closure axis, to actuate the valve so that a plug, which is attached,within the tube on the upper wall, can engage in a bush and close it and vice versa. A helical ramp on the plug base and guide curves extending inwardly from the cap base are necessary for this additional upward and downward movement o~ the turnspout. A relatively large number of components are thus necessary for the actuation of the turnspout in two directions which results in complicated injection moulded components.
~L 3 1 ~
~ 2 --In addition to the inevitable friction due to the rotary movement of the cap and tube when actuating the turnspout, friction in the axial direction (tube against bush) and friction on the helical ramp also occur so that the closure can only be actuated with the application of considerable force and cannot be actuated at all by frail people.
The height matching of the components which is necessary for the pressing in and turning is difficult due to the great number of the height tolerances which occur. In this connection there are four components to be taken account of, namely the cap, tube, plug and mouth.
US-~-3371827 discloses another container closure with a turnspout in which the turnspout needs only to be displaced in the direction of rotation. In one embodiment thereof (Figures 9 to 11) the free outer end of the turnspout may also be shut off, in fact by the actuating cap itself. In the closed position, not only the outer end of the tube but also its inner end are closed offO The tube itself is angled and its lower limb in the use position passes through the base of the closure plug and is pivotable-in this base.
A projection attached to the inner surface of the cap base serves to move the tube when the cap is rotated.
This has the following disadvantages:
The bent tube cannot be manufactured integrally of plastics material, or only with the aid of a complicated mouldJ in an injection moulding process.
When the closure plug is pressed in and the cap screwed on the cap wall i5 deformed and thus unsuitable for sealing the outer end of the tube.
131~4~
The cap impedes the pivotal movement of the tube even at positions where no sealing is necessary, namely during the major portion of the pivotal mov~ment.
~ feed pipe for liquid cannot be fitted.
According to the invention there is provided a container closure made of plastics material and provided with a retractable turnspout, said closure having the following components: a) a plug for closing the container, said plug having a base, b) an upwardly extending bush which is e~centrically arranged on the plug base and whose internal passage passes throuyh the plug base, c) a turret which sealingly engages over the bush and is rotatable on it and which together with a tube projecting from it transverse to its axis of rotation forms the turnspout, said turret having a base, d) a continuous liquid passage in the turret and tube, e) a sealing device between the bush and turret, f) a cap which engages over the plug and the container, is rotatable with respect to the plug, has a lateral opening through which the tube may pass and has a base, g) a shield upstanding from the plug base for closing the lateral opening when the turnspout is pivoted in, h) a wall on the cap base and projecting towards the plug base and having a first engaging edge for pivoting the tube out, characterised by the following features:
i) a longitudinal slot in the wall of the bush together with the inward end of the liquid passage of the tube forms a tap, j) the shield also serves to seal the free end of the tube when it has been pivoted in, k) a second engaging edge provided on the wall serves to pivot the tube into a position behind the shield.
The result is substantially simpler injection moulded components for actuating the turnspout by comparison with US-A-3847313 since the turnspout need only be moved by the cap in the pivotal direction whilst components for raising and pressing down the turnspout are superfluous. Consequently, substantially less friction arises when actuating the closure in accordance with the invention.
.~L~.
- 3a - ` 1 ~ ~2~6 By comparison with US-A-3371827 the shield in accordance~,lith the invention attached to the plug offers the advantage principally that the free end of the tube is sealed perfectly in the closed position whilst in accordance with this prior publication it only engages the cap without being sealed. A further advantage resides in that the fit between the outer end of the tube and the shield is not changed when the container is closed, that is to say a perfect sealing function is maintained.
~ 3 ~
Further features of the invention . . _ will be apparent from the subordinate claims.
In accordance with Claim 2 a further valve may be provided for the purpose of additional sealing between the turret and bush which is also actuated when the turnspout is pivoted.
In accordance with Claim 3 the turnspout may be actuated by a cylindrical wall which is provided on the cap base and which is interrupted at one point. Its two edges resulting from the interruption serve to move the turnspout during the opening and closing processes.
In accordance with Claim 4 the shield, which serves to close the lateral opening in the cap and to seal the outer end of the tube, may be additionally used to limit the rotation of the cap in at least one direction of rotation.
In the opening direction this purpose can be served in accordance with Claim 5 by one edge of the shield together with a projection on the interior of the cap wall.
In the closing direction this purpose can b~ served in accordance with Claim 6 by a projection, e.g. in the form of a rib on the inner wall of the shield together with the free end of the tube to limit the rotation of the cap.
A tamper ind~cator may be provided in accordance with Claim 7 and in accordance w~th Claim ~ this may be so constructed that the cap and tongue which may be broken away which are necessary for this purpose may be manufactured in a simply constructed injection moulding tool.
Exemplary embodiments with further features of the invention will be described below with reference to the drawings~
igure 1 is a perspective view of a closure with a retractable turnspout in accordance with the invention mounted on a container.
igure 2 is an exploded view on an enlarged scale of the container and the components of the closure.
igure 3 is an axial section through the plug of the closure shown in the middle of Figure 2.
igure 4 is a plan view of the plug.
igure 5 is a side el~vation of the plug with the turnspout on a reduced scale by comparison with Figures 3 and 4.
igure 6 is a view from below of t~ cap illustrated in Figure 2.
igure 7 is an axial sectional view of the cap on the plane VII-VII in Figure 6.
igure B is a partial axial section through the cap on the plane VIII-VIII in Figure 6.
igure 9 is a longitudinal section through the container mouth, plug, cap and the turnspout which has been completely pivoted out and thus shows the use position.
igure 10 is a sectional view on the plane X-X in Figure 9, that is to say viewed from above towards the plug base; the parts also being in the use position.
- 6 _ i ~3~2$~.3 igures 11 to 14 are views similar to Figure 10 and show the relative positions of the components in differing rotary positions of the cap and the turnspout.
igure 15 is a longitudinal sectional view of a modified embodiment of a turnspout.
igure 16 is a plan view of this turnspout.
igure 17 is a partial sectional view on the plane XVII in Figure 15.
igure 18 is a perspective view of another embodiment of the bush provided on the plug.
igures 19 and 2~ are aperspective view and a partial longi-tudinal sectional viaw through the cap, respectively, of a tamper-proof closure.
igures 21 and 22 are similar views of another version of a tamper-proof closure.
Terms such as "above" and "below" refer to the position of the parts in a vertically standing mouth of an upright container. Terms such as "axial" refer to the axes of the mouth and of the plug.
All components of the container closure are manufactured from plasti~ material.
Figures 1 to 4 show a closure 1 with a turnspout in accordance with the invention. Rotatably secured to a container 4 is a cap 2 with cap base 2a and a cap wall 2b in which there is a lateral opening 3. The container is ~ 3 ~
preferably elastically flexible.
Figures 3 and 4 and the middle of Figure 2 show a plug 5 with plug base 5a and a plug wall Sb extending upwardly therefrom for insertion of the plug into the container mouth 10. The plug is integrally injection moulded with a bush 6 of relatively hard plastics material. The bush is situated substantially eccentrically and extends parallel to the plug axisO The lower end of the bush 6 is surrounded by an annular groove 5c. On its upwardly directed side the bush has a longitudinal slot 7 which is parallel to the axis and which merges into a liquid passage 6a in the interior of the bush. The upper end of the bush can also be closed, as is shown on a bush 6' in Figure 18.
Figure 2 also shows the turnspout which is designated in its entirety as 9 and which has a cap-like turret 9b, on which there is a radial tube ga whose liquid passage 9c is in communication with the interior of the turret. After assembly, the turret sits on the bush 6, as shown in Figure 9. It fits in a rotatable and sealing manner over the bush.
When the tube 9a is pivoted ~ully outwardly, its liquid passage 9c is in communication through the longitudinal slot 7 with the liquid passage 6a in the bush 6. The longitu-dinal slot has the effect of a tap; when the tube 9a is pivoted inwardly ~Figures 11 to 14~ this connection is broken and when the tube is completely pivoted out (Figure 10~ it is open.
On the plug base there is a shield 8 which is constructed as a part-cylindrical wall integral with the plug and is concentric with the plug axis 5d (Figure 9). It serves to close the lateral opening 3 in the cap in the closed position, as shown in Figure 14. The shield also has other functions: it has an inwardly directed abutment rib 8a which ~ 3~,8~
is parallel to the axis and which in the closed position serves as an abutment for the outer end of the tube (Figure 14). The shield also serves in this position to seal the outer end of the tube 9a.
The edge of the plug base 5a rests on a lip 11 at the top of the container mouth 10. A bush 13 projects downwardly from the plug base 5a. A feed tube can, if required, be pushed onto it for the liquid which is to be delivered.
Figure 6 shows the cap 2 from below on an enlarged scale.
One can see the lateral opening 3 in the cap wall 2b. Lower snap lugs 17 serve to retain the cap 2 on the container mouth 10. They engage below a snap ring 16 on the container mouth and fix the cap against rotation on the container and secure against axial movements. Upper snap lugs 18 serve to fix the plug 5 with the turnspout 9 in position within the cap 2. After its engagement the plug sits rotationally fixed in the container mouth and thus does not move when the cap 2 rotates. By virtue of the wall 26 a precise height assembly of the plug 5 with the turnspout 9 in the cap 2 is rendered possible. The wall 26 transmits the axial force which is necessary for the engagement of the plug in the container mouth 10, from the cap 2 to the plug 5.
A flat abutment web 25 ~Figures 6 and 8) which extends along a radial plane and projects from the cap base limits the rotary movement of the cap 2 in the use position by abutment against the shield 8 and thus the pivotal movement o~ the turnspout when its tube 9a is completely extended (Figure 10)~ In this position the tube extends approximately in the direction of a radial plane. Fastened to the cap base is an inwardly directed cylindrical wall 26 which is however not completely closed but has an opening which is somewhat offset with respect to the lateral opening 3 in the cap and 9 ~2~
is defined by two edges, the "engaging edges" 39 and 40.
The wall 26 serves to move the tube 9a in the one or th~
other direction of rotation and thus to pivot the tube outwardlyinto the use position (Figure 10) and to pivot it inwardly intOthe closed position (Fiyure 14), so long as the rotary movement is not limited by abutments~
Provided on the inner side of the cap ~7all 2b is a flat positioning web 24 (Figure 8) which, when the plug 5 is inserted, serves together with the cap to position the plug in the direction of rotation, namely by abutment against a rib 23 on the container mouth 10 (Figure 2). In this manner the plug can be aligned, e.g. with a hottle label or the like. The cap can be locked in the closed position with respect to the rib 23 on the opening by a short locking web 27 (Figure 6) provided in the cap.
Figures 10 to 14 show in section on the plane X-X in Figure 9 the position of the parts in differing pivotal positions.
Figure 10 shows the use position with the tube 9a completely pivoted out corresponding to Figure 9 in which the container contents can be delivered. On rotation of the cap 2 in the clockwise sense out of the position of Figure 10 into that of Figure 12, the edge 35 of the lateral opening 3 in the cap moves the tube 9a with it in the clockwise sense.
Thereafter the tube is moved into the closed position of Figure 14 by an edge of the cylindrical wall 26, the "second engaging edge!' 40 referred to in Claim 1, namely when it has been completely withdrawn inwardly out of the lateral opening 3 in the cap and as a result can no longer be moved by the edge 35 of the opening 3~ In the closed position of Figure 14 the outer end 9a of the tube is sealed with respect to the inner wall of the shield 8. The abutment rib 8a of the shield limits the movement of the tube and thus also the rotation of the cap 2 with respect to the container `
~ 3 ~
mouth.
When the tube is pivoted in from the position of Figure 1~
in the clockwise sense its liquid passage 9c is firstly shut off with respect to the longitudinal slot 7 in the bush 6.
The inner end of the tube 9a is thus sealed. Only later, when in the position of Figure 14, is its outer end also shut off by the shield 8.
The "first engaging edge" 39 of th~ cylindrical wall 26 serves to move the tube 9a in the opposite direction out of the position of Figure 14 into that of Figure 10. When the cap is pivoted in the anti-clockwise sense the engaging edge 39 engages the side wall of the tube 9a, pivots the tube firstly out of its sealing position with respect to the shield 8 and then further in the anti-clockwise sense so that after a certain pivotal movement it comes out of the lateral opening 3 in the cap 2 and finally moves into the position of Figure 10 in which it projects by the maximum distance and again defines a continuous liquid passage, as shown in Figure 9. The rotation of the cap 2 in the anti-clockwise sense is limited by abutment of the ahutment web 25 on the cap with the one edge of the shield ~, as shown in Fiyure 10.
In an embodiment shown in Figures 15 to 17, there is provided concentrically in the interior of the turret 9b for the purpose of additional sealing in the closed position a hollow cylinder ~2 which after assembly sealingly engages in the liquid passage 6a of the bush. In its lower portion thé
hollow cylinder 42 has a longitudinal slot 44 which forms a liquid passage whose breadth corresponds to that o~ the longitudinal slot 7 in the bush ~ ~Figure 4). In the use position of Figure 10 the longitudinal slot 44 permits an unimpeded liquid flow between the liquid passages 6a and 9c.
~ 3 ~
In the positions of Figures 12 to 14, the wall of the hollow cylinder 42 blocks this liquid flow and thus serves additionally to seal the inner end of the tube 9a.
As shown in Figures 19 and 20, to provide a tamper~proof closure the lateral opening 3 of the cap can be closed by an integrally moulded tongue 46 which can be broken away. It is connected to the edges 3a of the opening 3 by means of web-like predetermined breaking points 48.
Figures 21 and 22 show another embodiment of a tamper-proof closure. The illustrated tongue50 which may be torn away extends parallel to the axis of the cap 2 and is broader than the opening 3~ It is connected to the cap wall 2b by means of predetermined breaking points 52. This embodiment has the advantage that the cap and tongue which may be torn away can be demoulded without an additional movement of the injection mould.
~ 3 ~
REFERENCE NUMERALS
1 Closure 2 Cap 2a Cap base 2b Cap wall 3 Lateral opening 3a Edge of this opening 4 Container Plug 5a Plug base 5b Plug wall 5c Annular groove 5d Plug axis 6 Bush 6a Liquid passage 7 Longitudinal slot 8 Shleld 8a Abutment rib 9 Turnspout 9a Tube 9b Turret 9c Liquid passage Container mouth 11 Lip 13 . Lower bush 16 Snap ring 17 Lower snap lugs 18 Upper snap lugs 23 Rib 24 Positioning web Abutment web ~ ` ~
~3~2~
26 Cylindrical wall 27 Locking web Edge 39 1st engaging edge 2nd engaging edge 42 Hollow cylinder 44 Longitudinal slot 46 Tongue which may be broken away 48 Predetermlned breaking point Tongue which may be broken away 52 Predetermined breaking point __ _ _ _ _ ... . .
-' .
CONTAINER CLOSURE WITH A RETRACTA~LE TURNSPOUT
The invention relates to a closure of plastics material on a container (particularly a bottle) which serves to receive and deliver liquids or pastes. The closure of this container has a retractable turnspout and also the components referred to in the precharacterising portion of Claim 1. The terms defined in the claims are also used in the following detailed statement.
Such a closure is disclosed in US-A-3847313. The turnspout mentioned therein is rotatable about an eccentric bush. The tube of the turnspout can be moved outwardly or inwardly by way of a pivotal movement. In the one extreme position it disappears completely within an actuating cap. This is the closed position. In the other extreme position it projects to a maximum extent out of a lateral opening in the cap.
This is the use position in which liquid can be delivered (poured or squirted) through the turnspout.
A valve in the liquid passage to the turnspout is so actuated that it is open in the use position and closed in the closed position. In the known closure an additional movement of the turnspout is necessary, namely parallel to the closure axis, to actuate the valve so that a plug, which is attached,within the tube on the upper wall, can engage in a bush and close it and vice versa. A helical ramp on the plug base and guide curves extending inwardly from the cap base are necessary for this additional upward and downward movement o~ the turnspout. A relatively large number of components are thus necessary for the actuation of the turnspout in two directions which results in complicated injection moulded components.
~L 3 1 ~
~ 2 --In addition to the inevitable friction due to the rotary movement of the cap and tube when actuating the turnspout, friction in the axial direction (tube against bush) and friction on the helical ramp also occur so that the closure can only be actuated with the application of considerable force and cannot be actuated at all by frail people.
The height matching of the components which is necessary for the pressing in and turning is difficult due to the great number of the height tolerances which occur. In this connection there are four components to be taken account of, namely the cap, tube, plug and mouth.
US-~-3371827 discloses another container closure with a turnspout in which the turnspout needs only to be displaced in the direction of rotation. In one embodiment thereof (Figures 9 to 11) the free outer end of the turnspout may also be shut off, in fact by the actuating cap itself. In the closed position, not only the outer end of the tube but also its inner end are closed offO The tube itself is angled and its lower limb in the use position passes through the base of the closure plug and is pivotable-in this base.
A projection attached to the inner surface of the cap base serves to move the tube when the cap is rotated.
This has the following disadvantages:
The bent tube cannot be manufactured integrally of plastics material, or only with the aid of a complicated mouldJ in an injection moulding process.
When the closure plug is pressed in and the cap screwed on the cap wall i5 deformed and thus unsuitable for sealing the outer end of the tube.
131~4~
The cap impedes the pivotal movement of the tube even at positions where no sealing is necessary, namely during the major portion of the pivotal mov~ment.
~ feed pipe for liquid cannot be fitted.
According to the invention there is provided a container closure made of plastics material and provided with a retractable turnspout, said closure having the following components: a) a plug for closing the container, said plug having a base, b) an upwardly extending bush which is e~centrically arranged on the plug base and whose internal passage passes throuyh the plug base, c) a turret which sealingly engages over the bush and is rotatable on it and which together with a tube projecting from it transverse to its axis of rotation forms the turnspout, said turret having a base, d) a continuous liquid passage in the turret and tube, e) a sealing device between the bush and turret, f) a cap which engages over the plug and the container, is rotatable with respect to the plug, has a lateral opening through which the tube may pass and has a base, g) a shield upstanding from the plug base for closing the lateral opening when the turnspout is pivoted in, h) a wall on the cap base and projecting towards the plug base and having a first engaging edge for pivoting the tube out, characterised by the following features:
i) a longitudinal slot in the wall of the bush together with the inward end of the liquid passage of the tube forms a tap, j) the shield also serves to seal the free end of the tube when it has been pivoted in, k) a second engaging edge provided on the wall serves to pivot the tube into a position behind the shield.
The result is substantially simpler injection moulded components for actuating the turnspout by comparison with US-A-3847313 since the turnspout need only be moved by the cap in the pivotal direction whilst components for raising and pressing down the turnspout are superfluous. Consequently, substantially less friction arises when actuating the closure in accordance with the invention.
.~L~.
- 3a - ` 1 ~ ~2~6 By comparison with US-A-3371827 the shield in accordance~,lith the invention attached to the plug offers the advantage principally that the free end of the tube is sealed perfectly in the closed position whilst in accordance with this prior publication it only engages the cap without being sealed. A further advantage resides in that the fit between the outer end of the tube and the shield is not changed when the container is closed, that is to say a perfect sealing function is maintained.
~ 3 ~
Further features of the invention . . _ will be apparent from the subordinate claims.
In accordance with Claim 2 a further valve may be provided for the purpose of additional sealing between the turret and bush which is also actuated when the turnspout is pivoted.
In accordance with Claim 3 the turnspout may be actuated by a cylindrical wall which is provided on the cap base and which is interrupted at one point. Its two edges resulting from the interruption serve to move the turnspout during the opening and closing processes.
In accordance with Claim 4 the shield, which serves to close the lateral opening in the cap and to seal the outer end of the tube, may be additionally used to limit the rotation of the cap in at least one direction of rotation.
In the opening direction this purpose can be served in accordance with Claim 5 by one edge of the shield together with a projection on the interior of the cap wall.
In the closing direction this purpose can b~ served in accordance with Claim 6 by a projection, e.g. in the form of a rib on the inner wall of the shield together with the free end of the tube to limit the rotation of the cap.
A tamper ind~cator may be provided in accordance with Claim 7 and in accordance w~th Claim ~ this may be so constructed that the cap and tongue which may be broken away which are necessary for this purpose may be manufactured in a simply constructed injection moulding tool.
Exemplary embodiments with further features of the invention will be described below with reference to the drawings~
igure 1 is a perspective view of a closure with a retractable turnspout in accordance with the invention mounted on a container.
igure 2 is an exploded view on an enlarged scale of the container and the components of the closure.
igure 3 is an axial section through the plug of the closure shown in the middle of Figure 2.
igure 4 is a plan view of the plug.
igure 5 is a side el~vation of the plug with the turnspout on a reduced scale by comparison with Figures 3 and 4.
igure 6 is a view from below of t~ cap illustrated in Figure 2.
igure 7 is an axial sectional view of the cap on the plane VII-VII in Figure 6.
igure B is a partial axial section through the cap on the plane VIII-VIII in Figure 6.
igure 9 is a longitudinal section through the container mouth, plug, cap and the turnspout which has been completely pivoted out and thus shows the use position.
igure 10 is a sectional view on the plane X-X in Figure 9, that is to say viewed from above towards the plug base; the parts also being in the use position.
- 6 _ i ~3~2$~.3 igures 11 to 14 are views similar to Figure 10 and show the relative positions of the components in differing rotary positions of the cap and the turnspout.
igure 15 is a longitudinal sectional view of a modified embodiment of a turnspout.
igure 16 is a plan view of this turnspout.
igure 17 is a partial sectional view on the plane XVII in Figure 15.
igure 18 is a perspective view of another embodiment of the bush provided on the plug.
igures 19 and 2~ are aperspective view and a partial longi-tudinal sectional viaw through the cap, respectively, of a tamper-proof closure.
igures 21 and 22 are similar views of another version of a tamper-proof closure.
Terms such as "above" and "below" refer to the position of the parts in a vertically standing mouth of an upright container. Terms such as "axial" refer to the axes of the mouth and of the plug.
All components of the container closure are manufactured from plasti~ material.
Figures 1 to 4 show a closure 1 with a turnspout in accordance with the invention. Rotatably secured to a container 4 is a cap 2 with cap base 2a and a cap wall 2b in which there is a lateral opening 3. The container is ~ 3 ~
preferably elastically flexible.
Figures 3 and 4 and the middle of Figure 2 show a plug 5 with plug base 5a and a plug wall Sb extending upwardly therefrom for insertion of the plug into the container mouth 10. The plug is integrally injection moulded with a bush 6 of relatively hard plastics material. The bush is situated substantially eccentrically and extends parallel to the plug axisO The lower end of the bush 6 is surrounded by an annular groove 5c. On its upwardly directed side the bush has a longitudinal slot 7 which is parallel to the axis and which merges into a liquid passage 6a in the interior of the bush. The upper end of the bush can also be closed, as is shown on a bush 6' in Figure 18.
Figure 2 also shows the turnspout which is designated in its entirety as 9 and which has a cap-like turret 9b, on which there is a radial tube ga whose liquid passage 9c is in communication with the interior of the turret. After assembly, the turret sits on the bush 6, as shown in Figure 9. It fits in a rotatable and sealing manner over the bush.
When the tube 9a is pivoted ~ully outwardly, its liquid passage 9c is in communication through the longitudinal slot 7 with the liquid passage 6a in the bush 6. The longitu-dinal slot has the effect of a tap; when the tube 9a is pivoted inwardly ~Figures 11 to 14~ this connection is broken and when the tube is completely pivoted out (Figure 10~ it is open.
On the plug base there is a shield 8 which is constructed as a part-cylindrical wall integral with the plug and is concentric with the plug axis 5d (Figure 9). It serves to close the lateral opening 3 in the cap in the closed position, as shown in Figure 14. The shield also has other functions: it has an inwardly directed abutment rib 8a which ~ 3~,8~
is parallel to the axis and which in the closed position serves as an abutment for the outer end of the tube (Figure 14). The shield also serves in this position to seal the outer end of the tube 9a.
The edge of the plug base 5a rests on a lip 11 at the top of the container mouth 10. A bush 13 projects downwardly from the plug base 5a. A feed tube can, if required, be pushed onto it for the liquid which is to be delivered.
Figure 6 shows the cap 2 from below on an enlarged scale.
One can see the lateral opening 3 in the cap wall 2b. Lower snap lugs 17 serve to retain the cap 2 on the container mouth 10. They engage below a snap ring 16 on the container mouth and fix the cap against rotation on the container and secure against axial movements. Upper snap lugs 18 serve to fix the plug 5 with the turnspout 9 in position within the cap 2. After its engagement the plug sits rotationally fixed in the container mouth and thus does not move when the cap 2 rotates. By virtue of the wall 26 a precise height assembly of the plug 5 with the turnspout 9 in the cap 2 is rendered possible. The wall 26 transmits the axial force which is necessary for the engagement of the plug in the container mouth 10, from the cap 2 to the plug 5.
A flat abutment web 25 ~Figures 6 and 8) which extends along a radial plane and projects from the cap base limits the rotary movement of the cap 2 in the use position by abutment against the shield 8 and thus the pivotal movement o~ the turnspout when its tube 9a is completely extended (Figure 10)~ In this position the tube extends approximately in the direction of a radial plane. Fastened to the cap base is an inwardly directed cylindrical wall 26 which is however not completely closed but has an opening which is somewhat offset with respect to the lateral opening 3 in the cap and 9 ~2~
is defined by two edges, the "engaging edges" 39 and 40.
The wall 26 serves to move the tube 9a in the one or th~
other direction of rotation and thus to pivot the tube outwardlyinto the use position (Figure 10) and to pivot it inwardly intOthe closed position (Fiyure 14), so long as the rotary movement is not limited by abutments~
Provided on the inner side of the cap ~7all 2b is a flat positioning web 24 (Figure 8) which, when the plug 5 is inserted, serves together with the cap to position the plug in the direction of rotation, namely by abutment against a rib 23 on the container mouth 10 (Figure 2). In this manner the plug can be aligned, e.g. with a hottle label or the like. The cap can be locked in the closed position with respect to the rib 23 on the opening by a short locking web 27 (Figure 6) provided in the cap.
Figures 10 to 14 show in section on the plane X-X in Figure 9 the position of the parts in differing pivotal positions.
Figure 10 shows the use position with the tube 9a completely pivoted out corresponding to Figure 9 in which the container contents can be delivered. On rotation of the cap 2 in the clockwise sense out of the position of Figure 10 into that of Figure 12, the edge 35 of the lateral opening 3 in the cap moves the tube 9a with it in the clockwise sense.
Thereafter the tube is moved into the closed position of Figure 14 by an edge of the cylindrical wall 26, the "second engaging edge!' 40 referred to in Claim 1, namely when it has been completely withdrawn inwardly out of the lateral opening 3 in the cap and as a result can no longer be moved by the edge 35 of the opening 3~ In the closed position of Figure 14 the outer end 9a of the tube is sealed with respect to the inner wall of the shield 8. The abutment rib 8a of the shield limits the movement of the tube and thus also the rotation of the cap 2 with respect to the container `
~ 3 ~
mouth.
When the tube is pivoted in from the position of Figure 1~
in the clockwise sense its liquid passage 9c is firstly shut off with respect to the longitudinal slot 7 in the bush 6.
The inner end of the tube 9a is thus sealed. Only later, when in the position of Figure 14, is its outer end also shut off by the shield 8.
The "first engaging edge" 39 of th~ cylindrical wall 26 serves to move the tube 9a in the opposite direction out of the position of Figure 14 into that of Figure 10. When the cap is pivoted in the anti-clockwise sense the engaging edge 39 engages the side wall of the tube 9a, pivots the tube firstly out of its sealing position with respect to the shield 8 and then further in the anti-clockwise sense so that after a certain pivotal movement it comes out of the lateral opening 3 in the cap 2 and finally moves into the position of Figure 10 in which it projects by the maximum distance and again defines a continuous liquid passage, as shown in Figure 9. The rotation of the cap 2 in the anti-clockwise sense is limited by abutment of the ahutment web 25 on the cap with the one edge of the shield ~, as shown in Fiyure 10.
In an embodiment shown in Figures 15 to 17, there is provided concentrically in the interior of the turret 9b for the purpose of additional sealing in the closed position a hollow cylinder ~2 which after assembly sealingly engages in the liquid passage 6a of the bush. In its lower portion thé
hollow cylinder 42 has a longitudinal slot 44 which forms a liquid passage whose breadth corresponds to that o~ the longitudinal slot 7 in the bush ~ ~Figure 4). In the use position of Figure 10 the longitudinal slot 44 permits an unimpeded liquid flow between the liquid passages 6a and 9c.
~ 3 ~
In the positions of Figures 12 to 14, the wall of the hollow cylinder 42 blocks this liquid flow and thus serves additionally to seal the inner end of the tube 9a.
As shown in Figures 19 and 20, to provide a tamper~proof closure the lateral opening 3 of the cap can be closed by an integrally moulded tongue 46 which can be broken away. It is connected to the edges 3a of the opening 3 by means of web-like predetermined breaking points 48.
Figures 21 and 22 show another embodiment of a tamper-proof closure. The illustrated tongue50 which may be torn away extends parallel to the axis of the cap 2 and is broader than the opening 3~ It is connected to the cap wall 2b by means of predetermined breaking points 52. This embodiment has the advantage that the cap and tongue which may be torn away can be demoulded without an additional movement of the injection mould.
~ 3 ~
REFERENCE NUMERALS
1 Closure 2 Cap 2a Cap base 2b Cap wall 3 Lateral opening 3a Edge of this opening 4 Container Plug 5a Plug base 5b Plug wall 5c Annular groove 5d Plug axis 6 Bush 6a Liquid passage 7 Longitudinal slot 8 Shleld 8a Abutment rib 9 Turnspout 9a Tube 9b Turret 9c Liquid passage Container mouth 11 Lip 13 . Lower bush 16 Snap ring 17 Lower snap lugs 18 Upper snap lugs 23 Rib 24 Positioning web Abutment web ~ ` ~
~3~2~
26 Cylindrical wall 27 Locking web Edge 39 1st engaging edge 2nd engaging edge 42 Hollow cylinder 44 Longitudinal slot 46 Tongue which may be broken away 48 Predetermlned breaking point Tongue which may be broken away 52 Predetermined breaking point __ _ _ _ _ ... . .
-' .
Claims (8)
1. A container closure made of plastics material and provided with a retractable turnspout, said closure having the following components:
a) a plug for closing the container, said plug having a base, b) an upwardly extending bush which is eccentrically arranged on the plug base and whose internal passage passes through the plug base, c) a turret which sealingly engages over the bush and is rotatable on it and which together with a tube projecting from it transverse to its axis of rotation forms the turnspout, said turret having a base, d) a continuous liquid passage in the turret and tube, e) a sealing device between the bush and turret, f) a cap which engages over the plug and the container, is rotatable with respect to the plug, has a lateral opening through which the tube may pass and has a base, g) a shield upstanding from the plug base for closing the lateral opening when the turnspout is pivoted in, h) a wall on the cap base and projecting towards the plug base and having a first engaging edge for pivoting the tube out, characterised by the following features:
i) a longitudinal slot in the wall of the bush together with the inward end of the liquid passage of the tube forms a tap, j) the shield also serves to seal the free end of the tube when it has been pivoted in, k) a second engaging edge provided on the wall serves to pivot the tube into a position behind the shield.
a) a plug for closing the container, said plug having a base, b) an upwardly extending bush which is eccentrically arranged on the plug base and whose internal passage passes through the plug base, c) a turret which sealingly engages over the bush and is rotatable on it and which together with a tube projecting from it transverse to its axis of rotation forms the turnspout, said turret having a base, d) a continuous liquid passage in the turret and tube, e) a sealing device between the bush and turret, f) a cap which engages over the plug and the container, is rotatable with respect to the plug, has a lateral opening through which the tube may pass and has a base, g) a shield upstanding from the plug base for closing the lateral opening when the turnspout is pivoted in, h) a wall on the cap base and projecting towards the plug base and having a first engaging edge for pivoting the tube out, characterised by the following features:
i) a longitudinal slot in the wall of the bush together with the inward end of the liquid passage of the tube forms a tap, j) the shield also serves to seal the free end of the tube when it has been pivoted in, k) a second engaging edge provided on the wall serves to pivot the tube into a position behind the shield.
2. Container closure as claimed in Claim 1, characterised in that for additional sealing of the inner end of the tube when the turnspout is fully pivoted in, a hollow cylinder is mounted on the base of the turret which fits concentrically and in a liquid-tight manner into a liquid passage in the interior of the bush and has a longitudinal slot which is directed towards the tube.
3. Container closure as claimed in Claim 1, characterised by the following features:
a) the wall projecting from the cap base towards the plug base is arranged concentrically with the axis of the cap and, with the exception of an interruption, has the shape of a closed cylindrical wall whose external diameter is somewhat smaller than that of the internal diameter of the shield which is also of part-cylindrical shape, b) the interruption is situated between the two engaging edges and approximately opposite the lateral opening in the cap wall.
a) the wall projecting from the cap base towards the plug base is arranged concentrically with the axis of the cap and, with the exception of an interruption, has the shape of a closed cylindrical wall whose external diameter is somewhat smaller than that of the internal diameter of the shield which is also of part-cylindrical shape, b) the interruption is situated between the two engaging edges and approximately opposite the lateral opening in the cap wall.
4. Container closure as claimed in Claim 1, characterised in that the shield serves to limit the rotation of the cap, at least when it reaches the use position.
5. Container closure as claimed in Claim 4, characterised in that a projection arranged in the interior of the cap wall together with the one edge of the shield forms an abutment to terminate the rotation of the cap after the tube has been pivoted out.
6. Container closure as claimed in Claim 4, characterised in that a projection on the inner wall of the shield serves as an abutment for the free end of the tube and thus to limit the inward pivotal movement of the tube
7. Container closure as claimed in Claim 1, characterised in that the lateral opening in the cap is closed before use to provide a tamper indicator by an integrally moulded tongue which may be broken away.
8. Container closure as claimed in Claim 7, characterised in that the tongue which may be broken away extends parallel to the cap axis.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/077,909 US4998649A (en) | 1987-07-27 | 1987-07-27 | Retractable turnspout closure |
| US077,909 | 1987-07-27 | ||
| EP87119298A EP0301135B1 (en) | 1987-07-27 | 1987-12-29 | Container closure with retractable turnspout |
| EP87119298.5 | 1987-12-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1312846C true CA1312846C (en) | 1993-01-19 |
Family
ID=26108885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000573048A Expired - Fee Related CA1312846C (en) | 1987-07-27 | 1988-07-26 | Container closure with a retractable turnspout |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPH02504380A (en) |
| AT (1) | ATE61989T1 (en) |
| AU (1) | AU631778B2 (en) |
| BR (1) | BR8807632A (en) |
| CA (1) | CA1312846C (en) |
| DK (1) | DK21290A (en) |
| NZ (1) | NZ225497A (en) |
| RU (1) | RU1823853C (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3094255A (en) * | 1958-02-03 | 1963-06-18 | Clayton M Hunter | Dispensing caps for containers |
| US3847313A (en) * | 1973-02-16 | 1974-11-12 | Leeds & Micallef | Retractable turnspout closure |
| JPS5597930A (en) * | 1979-01-18 | 1980-07-25 | Yoshino Kogyosho Co Ltd | Molding method of synthetic resin bottle with ear |
| JPS58125459A (en) * | 1981-07-28 | 1983-07-26 | デユサン・サバ・ラジヨビク | Closing cover with rotatable closing member |
| GB2104496A (en) * | 1981-07-28 | 1983-03-09 | Dusan Sava Lajovic | Container closure |
-
1987
- 1987-12-29 AT AT87119298T patent/ATE61989T1/en not_active IP Right Cessation
-
1988
- 1988-07-16 JP JP63506190A patent/JPH02504380A/en active Pending
- 1988-07-16 AU AU20862/88A patent/AU631778B2/en not_active Ceased
- 1988-07-16 BR BR888807632A patent/BR8807632A/en unknown
- 1988-07-20 NZ NZ225497A patent/NZ225497A/en unknown
- 1988-07-26 CA CA000573048A patent/CA1312846C/en not_active Expired - Fee Related
-
1990
- 1990-01-26 DK DK021290A patent/DK21290A/en not_active Application Discontinuation
- 1990-01-26 RU SU904743043A patent/RU1823853C/en active
Also Published As
| Publication number | Publication date |
|---|---|
| DK21290D0 (en) | 1990-01-26 |
| ATE61989T1 (en) | 1991-04-15 |
| JPH02504380A (en) | 1990-12-13 |
| BR8807632A (en) | 1990-06-12 |
| AU631778B2 (en) | 1992-12-10 |
| RU1823853C (en) | 1993-06-23 |
| DK21290A (en) | 1990-01-26 |
| NZ225497A (en) | 1990-07-26 |
| AU2086288A (en) | 1989-03-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |