JP7013157B2 - Discharge device - Google Patents

Description

The present invention relates to a discharge device, and more particularly to a discharge device that opens and closes two valves to discharge two types of contents from a nozzle.

Patent Document 1 discloses an aerosol container having a valve assembly having a plurality of stems, and FIG. 17d of Patent Document 1 shows a spout (operation unit 172) connected to the two stems and a container. A shoulder cover (attachment portion 171) to be attached around the shoulder portion of the main body is disclosed. The shoulder cover is attached to the container body by an outer cylinder portion that abuts on the shoulder portion of the container body and an engaging claw that engages with the lower end caulking portion of the mounting cover of the valve assembly. Since this shoulder cover does not support or guide the spout, it is not expected to be firmly attached to the container body. Further, the inner circumference of the oval opening of the shoulder cover and the outer circumference of the spout are separated from each other, and there is no intention of causing the shoulder cover to prevent the spout from rotating. However, since the spout is connected to two stems, unlike the case of one spout, there is a problem that when a load in the rotational direction is applied to the shoulder cover, a force to bend the two stems is applied.

Note that FIGS. 19 and 20 of Patent Document 1 disclose a structure in which a recess is provided on the top surface of the valve assembly and a positioning protrusion used for filling the contents is provided on the top surface thereof. ing.

Patent Document 2 discloses a fixing plate (shoulder cover) attached to an aerosol container having two stems. This fixing plate is mounted on the outer periphery of the mounting cup, and has a plurality of engaging claws that engage with the intermediate step portion 12b that abuts on the upper surface of the step portion of the mounting cup and the caulking portion at the lower end of the mounting cup. Has 16a. Since the step portion of the mounting cup fixes the flange of the valve holder to the bead of the container body, it is provided in an annular shape with a predetermined width, so that the fixing plate can be firmly fixed to the container body. Further, this fixing plate engages and holds a spout for discharging, and is provided with a positioning wall having an inner peripheral surface shape along the outer surface of the irregularly shaped protrusion protruding from the container aerosol container. There is. Therefore, the rotation of the fixed plate can be suppressed to some extent.

Japanese Unexamined Patent Publication No. 2013-60234 Japanese Unexamined Patent Publication No. 2014-201329

Since the mounting cup to which the fixing plate of Patent Document 2 is attached is attached to the container body by using a wide annular step portion, the fixing plate can be firmly fixed to the container body. However, if the width of the annular step of the mounting cup is narrow, it becomes difficult to firmly attach the fixing plate. Further, since the positioning wall that engages with the irregularly shaped protrusion at the upper end of the aerosol container in the rotation direction is provided, it is possible to prevent the fixing plate from rotating to some extent as described above. However, since the positioning wall is only along the outer peripheral surface of the protrusion, if a force in the rotational direction is applied to the fixing plate such as when removing the overcap, the positioning wall is elastically deformed and rotates somewhat. It is proposed to provide a reinforcing rib in order to suppress the elastic deformation of the positioning wall, but it is difficult to prevent the elastic deformation in the twisting direction, and it actually rotates to some extent.

In the present invention, even if the width of the annular step of the mounting cup is narrow or there is no annular step, the shoulder cover is firmly fixed to the discharge container to improve the operability of the spout attached to the shoulder cover. The technical issue is to provide the equipment. Another technical issue is to provide a discharge device that can sufficiently protect the stem by improving the rotation prevention function of the shoulder cover.

The discharge device 10 of the present invention includes a discharge container 11 having a valve assembly 16 fixed to the container body 15 and an opening of the container body, and a shoulder portion of the container body 15 from the top surface (31) of the valve assembly 16. The valve assembly 16 comprises a shoulder cover 12 covering over 21 and a spout 13 attached to the outer peripheral surface of the shoulder cover, and the valve assembly 16 includes two stems 32 protruding upward from the top surface (31), and the shoulder. The cover 12 has a top plate portion 43 that presses the top surface (31) of the valve assembly 16, and the spout 13 has a cover portion 53 that covers the outer periphery of the shoulder cover 12 and a hinge 54 on the cover portion thereof. It has a nozzle 18 connected to the two stems 32, and a downward annular engaging step portion 26b is formed in the discharge vessel 11, and the shoulder cover 12 is a top plate portion. It is characterized by having an engaging projection (locking claw 39) that engages with the engaging step portion 26b in a state where the 43 is pressed against the top surface (31) of the valve assembly 16.

In such a discharge device 10, an uneven portion (42, 60, 65) is formed on the top surface (31) of the valve assembly 16, and the uneven portion is fitted to the top plate portion 43 of the shoulder cover 12. It is preferable that the fitting portion (44, 63, 67) to prevent rotation is formed. Further, the valve assembly 16 has a valve holder 25 for holding two valves 17, and a mounting cover 26 for fixing the valve holder to the container body 15, and the uneven portion is formed on the top plate 31 of the mounting cover 26. Those in which 42 is formed are preferable. Further, the valve assembly 16 has a valve holder 25 for holding two valves 17, and a mounting cover 26 for fixing the valve holder to the container body, and a through hole 61 is formed in the top plate 31 of the mounting cover. At the same time, a deep hole 62 is formed in the corresponding portion of the valve holder 25, and the uneven portion is formed by the through hole 61 of the mounting cover 26, the deep hole 62 of the valve holder 25, or both of them. The one is preferable. Further, a fitting protrusion 65 for preventing rotation is projected from the top surface of the valve assembly 16, and a fitting hole 67 for fitting with the fitting protrusion 65 is formed on the top plate portion 43 of the shoulder cover 12. It may be the one that is.

In the discharge device of the present invention, a downward annular engaging step portion is formed in the discharge container, and the shoulder cover is pressed against the top surface of the valve assembly with the engaging step portion. Since it has an engaging protrusion that engages, the shoulder cover does not wobble with respect to the discharge container and is firmly fixed. Therefore, the two stems can be reliably opened at the same time, and the two liquids can be discharged at a predetermined discharge ratio.

In such a discharge device, an uneven portion is formed on the top surface of the valve assembly, and a fitting portion that fits with the uneven portion to prevent rotation is formed on the top plate portion of the shoulder cover. , The uneven portion of the top surface of the valve assembly and the fitting portion of the top plate portion of the shoulder cover are fitted to act as a detent, and even if an external force for rotating the shoulder cover is applied, the rotation is sufficiently prevented. Therefore, no load is applied to the two stems and they are protected.

When the valve assembly has a valve holder for holding two valves and a mounting cover for fixing the valve holder to the container body, and the uneven portion is formed on the top plate of the mounting cover, the uneven portion is formed. The present invention can be applied only by adopting a shoulder cover that fits the uneven portion. In this case, since no extra opening or through hole is formed in the mounting cover, the strength is not affected.

The valve assembly has a valve holder for holding two valves and a mounting cover for fixing the valve holder to the container body, and a through hole is formed in the top plate of the mounting cover and the valve holder is formed. When a deep hole is formed in the corresponding portion and the uneven portion is formed by the through hole of the mounting cover, the deep hole of the valve holder, or both of them, the connection between the discharge container and the shoulder cover is stronger. The anti-rotation effect and the wobbling prevention effect are improved.

When a fitting protrusion for preventing rotation protrudes from the top surface of the valve assembly and a fitting hole for fitting with the fitting protrusion is formed on the top plate portion of the shoulder cover, the discharge container and the discharge container are formed. The connection of the shoulder cover becomes stronger, and the anti-rotation action and the wobbling prevention action are improved.

It is a partially cutaway perspective view which shows one Embodiment of the discharge device of this invention. It is a partially cutaway perspective view which shows the discharge container and the shoulder cover of the discharge device of FIG. 3a is a partially cutaway plan view of the discharge container and the shoulder cover of FIG. 2, and FIG. 3b is a cross-sectional view taken along the line III-III of FIG. FIG. 3 is a sectional view taken along line IV-IV of FIG. 3a. 5a is a plan view showing another embodiment of the discharge container, and FIG. 5b is a sectional view taken along line VV of FIG. 5a. 6a is a plan view showing another embodiment of the discharge container, and FIG. 6b is a sectional view taken along line VI-VI of FIG. 6a.

The discharge device 10 shown in FIG. 1 includes a discharge container 11, a shoulder cover (fixing plate) 12 mounted on the upper portion of the discharge container, and a spout (discharge member) 13 mounted around the shoulder cover 12. .. The discharge container 11 includes a substantially cylindrical container body 15 and a valve assembly 16 attached to the upper end opening thereof and closing the opening (see FIG. 3b). Two pouches P (see FIG. 3b) are housed in the container body 15, and the valve assembly 16 has two valves 17 (see FIG. 4) communicating with each pouch P. The nozzle 18 of the spout 13 includes two discharge passages 18a.

As shown in FIG. 2, the container body 15 has a cylindrical body portion 20, a bottom portion (not shown) that closes the lower end thereof, a shoulder portion 21 at the upper end of the body portion, a neck portion 22 that rises from the shoulder portion, and an upper end portion of the neck portion. It is integrally molded from the flange 23 (see FIG. 3b). As the container body 15, a blow-molded product made of synthetic resin or the like can be adopted. It may be made of metal such as aluminum. The body portion 20 and the bottom plate may be configured as separate parts and connected.

As shown in FIGS. 3b and 4, the valve assembly 16 includes a valve holder 25 fitted in the neck portion 22 of the container body 15, two valves 17 held in the valve holder, and the valves 17 thereof. It is composed of a mounting cover 26 for fixing the valve holder 25 to the valve holder 25. The valve holder 25 has a cylindrical lower cylinder portion 27, a flange 28 that engages with the upper end of the neck portion 22 of the container body 15, an upper cylinder portion 29 that protrudes from the container body at a portion above the flange 28, and a valve 17. It has a cylindrical valve holding portion 30 for accommodating the above. The upper part of the upper cylinder portion 29 is closed by the upper bottom 29a except for the inside of the valve holding portion 30. Further, on the front surface of the upper cylinder portion 29, a flat portion 29b used as a positioning reference when assembling the valve assembly 16, such as mounting a valve 17 on a predetermined valve holding portion 30 or connecting a pouch P to a predetermined valve 17. Is provided, and the cross-sectional shape is a substantially D shape with a part of the circle cut out with a string.

The mounting cover 26 has a top plate 31 that abuts on the upper surface of the valve 17 and the upper bottom 29a of the valve holder 25, and further has an upper cylinder portion 29 of the valve holder 25, an upper surface and a peripheral surface of the flange 28, and a flange 23 of the container body 15. The lower end of the outer peripheral portion 26a is clinched inward so as to engage with the lower surface of the flange 23. As a result, the mounting cover 26 can fix the valve holder 25 and the two valves 17 to the container body 15 against the internal pressure in the container body 15. The portion bent inward and clinched is the engaging step portion 26b used for attaching the shoulder cover 12, and the valve holder 25 is provided in cooperation with the corner portion 26c that abuts on the upper surface of the flange 28 of the valve holder 25. It is fixed to the container body 15. As shown in FIG. 4, each valve 17 has a tubular housing 17a, a stem 32 movably housed in the housing, a spring 32a for urging the stem upward, a stem rubber 32b, and an individual valve. It has a known structure including a mounting cup 33, an O-ring 34, and the like. The two stems 32 project through the entire mounting cover 26. The front side of the upper part of the mounting cover 26 has a flat surface 26d so as to correspond to the flat portion 29b of the valve holder, and the cross-sectional shape is a substantially D shape in which a part of the circle is cut out by a string. The flat surface 26d can be used as a positioning reference when filling the pouch from the stem 32 of a predetermined valve 17 or when the shoulder cover 12 is attached to the valve assembly 16. However, the flat surface may not be provided and may be cylindrical (see FIGS. 5a and 6a).

As shown in FIGS. 2 and 3b, the shoulder cover 12 has a bottomed tubular upper portion 35, a stepped portion 36 extending from the lower end thereof, an outer cylinder 37 extending downward from the outer circumference of the stepped portion, and the center of the stepped portion 36. It is composed of an inner cylinder 38 extending downward from the lower surface on the side. The upper portion 35 is composed of a disk-shaped top plate portion 43 and a cylindrical peripheral wall portion 43a. A through hole 40 through which two stems 32 pass is formed in the top plate portion 43. The peripheral wall portion 43a is exteriorized on the outer periphery of the upper portion of the mounting cover 26. A flat surface that abuts on the flat surface 26d of the mounting cover 26 may be provided on the front side of the peripheral wall portion 43a. The outer diameter of the outer cylinder 37 is smaller than the outer diameter of the container body 15 by the thickness of the spout 13. The inner lower surface 36a of the step portion 36 is a portion corresponding to the outer peripheral corner portion 26c of the mounting cover 26, but a gap G is provided between the lower surface portion 36a and the corner portion 26c. The inner cylinder 38 has a cylindrical shape, and a plurality of engaging claws (engaging protrusions) 39 that engage with the engaging step portion 26b formed on the lower surface of the lower end of the clinched mounting cover 26 are formed at the lower end thereof. ..

The shoulder cover 12 is attached to the upper end of the discharge container 11 to improve the design of the product and also serves as a pedestal on which the spout 13 is attached, and needs to be firmly fixed to the discharge container 11. Therefore, some gap G is provided between the inner lower surface of the step portion 36 of the shoulder cover 12 and the corner portion 26c of the mounting cover 26, and the shoulder cover 12 is the top plate of the valve assembly 16 with the top plate portion 43 and the engaging claw 39. The engagement step portion 26b is firmly sandwiched between the 31 and the engaging step portion 26b. As a result, the top plate portion 43 of the shoulder cover 12 is firmly pressed against the top plate 31 of the mounting cover 26, and the shoulder cover 16 is firmly fixed without wobbling.

In the present embodiment, as a detent when the shoulder cover 12 is attached to the discharge container 11, an uneven portion 42 having a plurality of recesses is formed on the top surface of the discharge container 11, specifically, the top plate 31 of the mounting cover. A fitting portion (fitting protrusion) 44 that fits with the uneven portion 42 to prevent rotation is formed on the lower surface of the top plate portion 43 of the shoulder cover 12.

As shown in FIGS. 2 and 3a, in this embodiment, the uneven portion 42 of the top plate 31 is provided with left and right fan-shaped recesses 45 and 45, a vertically long dumbbell-shaped recess 46 between them, and front and rear thereof. It is composed of curved trapezoidal recesses 47, 47a and linear protrusions 48, 49, 50 that partition the recesses from each other. The trapezoidal concave portion 47a on the front side has a linear outer side corresponding to the flat portion 29b. Such uneven portions 42 can be press-molded when the mounting cover 26 is manufactured by press-molding from a thin metal plate such as aluminum.

The convex portions that partition the concave portions are curved, with an annular convex portion 48 along the outer periphery of the top plate 31, a dumbbell-shaped concave portion 46, and an arc-shaped convex portion 49 that separates the curved trapezoidal concave portions 47 and 47a. It is composed of a trapezoidal recess 47, a dumbbell-shaped recess 46, and a convex portion 50 extending in the radial direction separating the fan-shaped recess 45. The bottom surface of each recess 45, 46, 47, 47a is flat, and an inclined surface 51 is interposed between each recess and the convex portion. However, it may be a wall that rises at a right angle. These concave portions and convex portions act as reinforcing ribs of the mounting cover 26. In addition, work hardening occurs during press working to give tension to the top plate 31 and improve the overall strength.

The central dumbbell-shaped recess 46 is composed of a thin linear portion 46a arranged in the front-rear direction, that is, intersecting the line connecting the two stems 32, and a substantially triangular portion 46b at both ends thereof. .. However, the shape can be changed arbitrarily as long as it is non-rotating. For example, a thin linear portion may be omitted.

The fitting portion 44 formed on the lower surface of the top plate portion 43 of the shoulder cover 12 is formed in a shape that fits with the dumbbell-shaped recess 46 in this embodiment. It may be only a substantially triangular shape at both ends. The curved trapezoidal recess 47 is formed with a plurality of through holes 47b for draining water after being soaked in warm water in a gas leak test. As shown in FIG. 3b, the valve holder 25 is formed with a deep groove 25a at a portion communicating with these through holes 47b. The deep groove 25a is provided for weight reduction, molding, and the like, and may not be provided. Although the top plate portion 43 has a disk shape, a part of the outer periphery of the top plate portion 43 is shown by an imaginary line 43b in FIG. 2 so that the operation piece 55a does not come into contact with the push button 55 described later. You may cut it out like this. The notch 43b allows the shoulder cover 12 to be oriented when it is attached to the valve assembly 16 or when the spout 13 is attached to the shoulder cover 12. Further, the top plate portion 43 may have a shape that can press a part of the top plate 31 of the valve assembly 16, for example, an annular convex portion 48, and may have a ring shape, a U shape, a pair of arcs (parentheses shape), or the like. May be good.

As shown in FIGS. 1 and 3b, the spout 13 has a tubular cover portion 53 that fits around the shoulder cover 12 and a nozzle 18 that is connected to the upper surface of the cover portion via a hinge 54. A push button 55 and a protective wall 56 rising from the upper surface of the cover portion 53 so as to surround the left and right sides of the push button 55 are provided. The cover portion 53 includes a lower cylinder portion 53a corresponding to the outer cylinder 37 of the shoulder cover 12, an intermediate wall 53b corresponding to the step portion 36, and an upper cylinder portion 53c corresponding to the upper portion 35. A substantially annular engaging portion 53d is formed inward from the upper end of the upper cylinder portion 53c, and the hinge 54 is connected to the inner peripheral edge of the engaging portion 53d.

At the lower end of the cover portion 53, locking claws 58 that are locked to the notches 57 formed at the left and right lower ends of the outer cylinder 37 of the shoulder cover 12 are provided to prevent the spout 13 from coming off and turning. By providing a pair of slits 58a extending in the vertical direction along both sides of the locking claw 58 in the lower cylinder portion 53a of the cover portion 53, the locking claw can easily spread outward when the spout 13 is attached. It becomes easier to install. Further, if a pair of ribs 57a extending in the vertical direction are formed on both sides of the notch 57 of the outer cylinder 37 and slid in the slit 58a, the spout 13 can be easily aligned when the spout 13 is attached. Further, the lower cylinder portion 53a of the cover portion 53 may be provided with a swing lever that swings outwardly and is elastically urged inward, and a locking claw 58 may be provided at the lower end thereof. good. The push button 55 is attached to the two stems 32, and the operation piece 55a protrudes rearward. The rear side of the engaging portion 53d of the spout 13 is cut so that the operation piece 55a does not hit when the push button 55 is pushed down, and is used as the cut portion 53e.

The discharge device 10 configured as described above includes an uneven portion 42 formed on the top surface of the discharge container 11, specifically, a dumbbell-shaped recess 46 formed in the mounting cover 26, and a top plate portion 43 of the shoulder cover 12. Since the fitting portion 44 formed on the lower surface of the shoulder cover 12 is fitted, the rotation is surely prevented even if an external force for rotating the shoulder cover 12 is applied. As a result, the two stems 32 are not damaged without applying a force in the twisting direction via the spout 13 attached to the shoulder cover 12. Further, since the shoulder cover 12 is firmly fixed to the mounting cover 26 of the valve assembly 16 so as to be tightened in the vertical direction, even if a rotational force is applied to the shoulder cover 12, the fitting portion 44 is formed from the dumbbell-shaped recess 46. It is prevented from coming out.

In the discharge container 11A and the discharge device 10A shown in FIGS. 5a and 5b, the fitting hole 60 is adopted as the uneven portion formed on the top surface of the valve assembly 16. The fitting hole 60 includes a through hole 61 formed in the mounting cover 26 and a deep hole 62 formed in the valve holder 16. In this embodiment, the fitting hole 60 has a circular cross section and is formed in a curved fan-shaped recess 47 of the mounting cover 26 located at a position away from the center of the container body. A protrusion 63 that fits with the fitting hole 60 is integrally formed as a fitting portion on the lower surface of the top plate portion 43 of the shoulder cover 12. The fitting holes 60 and the protrusions 63 may be provided at a plurality of locations. When a plurality of containers are provided, it is preferable to arrange them symmetrically with respect to the center of the container. In this discharge device 10A as well, similarly to the discharge device 10 of FIGS. 1 to 4, the shoulder cover 12 sandwiches the convex portion of the top plate 31 of the valve assembly 16 and the engagement step portion 26b with the top plate portion 43 and the engagement claw 39. The stem 32 is protected because it is firmly fixed to the valve assembly 16 and rotation is suppressed.

The discharge container 11B and the discharge device 10B shown in FIGS. 6a and 6b employ two fitting protrusions 65 that project upward as uneven portions formed on the top surface of the valve assembly 16. The fitting protrusion 65 has a circular cross section. These fitting protrusions 65 penetrate the through hole 66 formed in the mounting cover 26 and project upward. The fitting protrusion 65 is formed at a position corresponding to the curved fan-shaped recess 47 of the mounting cover 26. A fitting hole 67 for fitting with the fitting protrusion 65 is formed as a fitting portion on the top plate portion of the shoulder cover 12, and the fitting of the fitting protrusion 65 and the fitting hole 67 causes the shoulder cover 12 to be fitted. It is a detent. The fitting protrusion 65 protrudes beyond the top plate portion 43 of the shoulder cover 12, but does not have to exceed it. If it exceeds, avoid interference with the spout (see FIG. 3b). If it does not exceed, a hole that does not penetrate may be formed in the top plate portion 43 instead of the fitting hole 67. The number of fitting protrusions 65 and fitting holes 67 may be one or three or more. In this discharge device 10B as well, the shoulder cover 12 sandwiches the convex portion of the top plate 31 of the valve assembly 16 and the engaging step portion 26b with the top plate portion 43 and the engaging claw 39, and is firmly fixed to the valve assembly 16 to provide the shoulder cover. Since rotation is suppressed, the stem is protected.

In the embodiment of FIG. 3b, the shoulder cover 12 is provided with a fitting portion for fitting with the dumbbell-shaped recess 46, but the fitting portion for fitting with one or two curved trapezoidal recesses 47, 47a. May be provided in both the dumbbell-shaped recess 46 and the curved trapezoidal recesses 47 and 47a. Further, a fitting groove that fits with the convex portion 50 extending in the radial direction of the mounting cover 26 may be formed on the lower surface of the top plate portion 43 of the shoulder cover 12. Further, the detent structure of FIGS. 3a and 3b may be combined with the detent structure of FIGS. 5a and 5b or 6a and 6b.

10 Discharge device 11 Discharge container 12 Shoulder cover 13 Spout 15 Container body 16 Valve assembly 17 Valve 17a Housing 18 Nozzle 18a Discharge passage 20 Body 21 Shoulder 22 Neck 23 Flange 25 Valve holder 25a Deep groove 26 Mounting cover 26a Outer circumference 26b Engagement Step 26c Square 26d Flat surface 27 Lower cylinder 28 Flange 29 Upper cylinder 29a Upper bottom 29b Flat part 30 Valve holding 31 (for mounting cover) Top plate 32 Stem 32a Spring 32b Stem rubber 33 (for individual valves) Mounting cup 34 O-ring 35 Upper part 36 Step part 36a (Step part) Bottom surface 37 Outer cylinder 38 Inner cylinder 39 Engagement claw 40 Through hole 42 Concavo-convex part 43 (shoulder cover) Top plate part 43a Peripheral wall part 43b Notch 44 Fitting Joint 45 Fan-shaped recess 46 Dumbbell-shaped recess 46a Thin linear part 46b Approximately triangular part 47, 47a Curved trapezoidal recess 47b Through hole 48 Circular convex 49 Arc-shaped convex 50 In the radial direction Extending convex part 51 Inclined surface 53 Cover part 53a Lower cylinder part 53b Intermediate wall 53c Upper cylinder part 53d Engaging part 53e Cut part 54 Flange 55 Push button 55a Operation piece 56 Protective wall 57 Notch 57a Rib 58 Locking claw 58a Slit 10A Discharge device 11A Discharge vessel 60 Fitting hole 61 Through hole 62 Deep hole 63 Protrusion 10B Discharge device 11B Discharge container 65 Fitting protrusion 66 Through hole 67 Fitting hole

Claims (4)

It is attached to the discharge container provided with the valve assembly fixed to the container body and the opening of the container body, the shoulder cover covering from the top surface of the valve assembly to the shoulder portion of the container body, and the outer peripheral surface of the shoulder cover. Consists of a spout
The valve assembly has two stems that project upward from the top surface.
A through hole and a recess for passing the stem are formed on the top surface of the valve assembly.
The shoulder cover has a top plate portion that presses the top surface of the valve assembly.
The spout has a cover portion that covers the outer periphery of the shoulder cover, and a nozzle that is connected to the cover portion via a hinge and is connected to the two stems.
An annular engaging step portion facing downward is formed in the discharge container.
The shoulder cover comprises an engaging projection that engages the engaging step .
The shoulder cover sandwiches the top surface of the valve assembly and the engaging step portion with the top plate portion and the engaging protrusion, so that the top plate portion presses the top surface.
A discharge device in which a fitting protrusion that fits with a recess on the top surface of the valve assembly to prevent rotation is formed on the lower surface of the top plate portion of the shoulder cover . The valve assembly has a valve holder for holding two valves and a mounting cover for fixing the valve holder to the container body.
The recess is formed in the top plate of the mounting cover.
The discharge device according to claim 1. It is attached to the discharge container provided with the valve assembly fixed to the container body and the opening of the container body, the shoulder cover covering from the top surface of the valve assembly to the shoulder portion of the container body, and the outer peripheral surface of the shoulder cover. Consists of a spout
The valve assembly has two stems that project upward from the top surface.
The shoulder cover has a top plate portion that presses the top surface of the valve assembly.
The spout has a cover portion that covers the outer periphery of the shoulder cover, and a nozzle that is connected to the cover portion via a hinge and is connected to the two stems.
An annular engaging step portion facing downward is formed in the discharge container.
The shoulder cover is provided with an engaging protrusion that engages with the engaging step portion in a state where the top plate portion is pressed against the top surface of the valve assembly .
The valve assembly has a valve holder for holding two valves and a mounting cover for fixing the valve holder to the container body.
A through hole is formed in the top plate of the mounting cover, and a deep hole is formed in the corresponding part of the valve holder.
An uneven portion is formed by a through hole of the mounting cover, a deep hole of the valve holder, or both of them, and a fitting portion that fits with the uneven portion to prevent rotation on the top plate portion of the shoulder cover. Is formed in the discharge device. It is attached to the discharge container provided with the valve assembly fixed to the container body and the opening of the container body, the shoulder cover covering from the top surface of the valve assembly to the shoulder portion of the container body, and the outer peripheral surface of the shoulder cover. Consists of a spout
The valve assembly has two stems that project upward from the top surface.
The shoulder cover has a top plate portion that presses the top surface of the valve assembly.
The spout has a cover portion that covers the outer periphery of the shoulder cover, and a nozzle that is connected to the cover portion via a hinge and is connected to the two stems.
An annular engaging step portion facing downward is formed in the discharge container.
The shoulder cover comprises an engaging projection that engages the engaging step .
The shoulder cover sandwiches the top surface of the valve assembly and the engaging step portion with the top plate portion and the engaging protrusion, so that the top plate portion presses the top surface.
The valve assembly has a valve holder for holding two valves and a mounting cover for fixing the valve holder to the container body.
A through hole for passing the stem is formed on the top surface of the valve assembly, and a fitting protrusion for preventing rotation is projected, and the fitting protrusion that fits the fitting protrusion is fitted on the top plate portion of the shoulder cover. Holes are formed ,
Discharge device.

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