JP6084390B2 - Liquid discharge container - Google Patents

Description

  The present invention relates to a liquid discharge container for discharging a content liquid stored in a storage container from a nozzle by a pressing operation of a pressing head.

  Conventionally, this type of liquid discharge container is often used as a container for storing a liquid such as a liquid cosmetic such as a milky lotion or a hairdressing agent.

  When such a liquid discharge container with a pressing head is carried in a bag or the like, for example, the pressing head may be unexpectedly pressed and the content liquid may be discharged accidentally. Accordingly, a cover cylinder is attached to the outer peripheral side of the storage container, and when not in use, the cover cylinder covers the outer periphery of the pressing head to prevent the pressing head from being unexpectedly pressed. Has been developed.

  For example, in Patent Document 1, an engagement protrusion is provided on the inner peripheral surface of a cover cylinder attached to the outer peripheral side of the storage container, and this engagement protrusion is provided in a spiral guide groove provided in the trunk of the storage container. When not in use, the cover cylinder covers the outer periphery of the push-down head to prevent erroneous operation. In use, the cover cylinder is rotated to accommodate the cover cylinder. There is described a liquid discharge container that is rotated down with respect to the container so that the pressing head can be exposed to a usable state.

JP2011-136722A

  However, in the conventional liquid discharge container, in order to open and close the cover cylinder, it is necessary to hold the container with one hand and hold the cover cylinder with the other hand to perform the rotation operation. Therefore, there is a need for a liquid discharge container that requires both hands and that can easily operate the cover cylinder.

  An object of the present invention is to provide a liquid discharge container capable of easily opening and closing a cover cylinder covering the outer periphery of a pressing head.

The liquid discharge container according to the present invention is a liquid discharge container including a storage container that stores a liquid and a pressing head that discharges the content liquid in the storage container by being pushed down. An inner cylinder that is fixed to the outer peripheral side of the container, and a closed position that is attached to the outer peripheral side of the inner cylinder and covers the outer periphery of the pressing head with respect to the inner cylinder, and the pressing head A cover cylinder that is relatively movable in a direction parallel to the pressing direction of the pressing head, and an opening position that exposes the pressing head, and the cover cylinder is provided between the storage container and the cover cylinder. An urging member that urges toward the closed position and holds in the closed position, and is provided on either the inner cylinder or the cover cylinder, and when the cover cylinder is in the open position, Provided on either the cylinder or the cover cylinder Engaged with the holding recess, and having a holding protrusion for holding the cover cylinder in the open position.

  In the above configuration, the pressing head is provided with a nozzle that protrudes in a direction perpendicular to the pressing direction of the pressing head, and when the cover cylinder is in the closed position, the pressing direction of the nozzle It is preferable that the cover tube is provided with a protruding wall that abuts on the surface facing downward.

  In the above-described configuration, it is preferable that an operation piece that can be operated in a direction in which the holding convex portion is detached from the holding concave portion is provided on the cover tube.

  In the present invention, on the outer peripheral side of the inner cylinder fixed to the storage container, between the closed position that covers the outer periphery of the pressing head with respect to the inner cylinder and the open position that exposes the pressing head, The cover cylinder is mounted so as to be relatively movable in a direction parallel to the pressing direction of the cover, and the cover cylinder is urged to the closed position by the urging member, and the inner cylinder or the cover cylinder when the cover cylinder is opened. Since the holding projection provided on either one of these is engaged with the holding depression provided on any one of these to hold the cover cylinder in the open position, the cover cylinder is simply pushed down. With a simple operation, the closed cover tube can be opened and the liquid discharge container can be put into use. Further, after use, the open cover cylinder can be closed and the liquid discharge container can be returned to the non-use state by a simple operation that only releases the engagement of the holding convex portion with the holding concave portion. . Thus, in the liquid discharge container of the present invention, the cover cylinder covering the pressing head can be easily opened and closed.

It is a half section side view of the liquid discharge container which is one embodiment of the present invention. It is a top view of the liquid discharge container shown in FIG. FIG. 2 is a view of a part of the liquid discharge container shown in FIG. It is an expanded sectional view which shows a mode that a holding | maintenance convex part remove | deviates from a holding | maintenance recessed part at the time of opening operation of a cover cylinder. FIG. 2 is a half sectional side view of the liquid discharge container shown in FIG. 1 in a state where a cover cylinder is in an open position. FIG. 6 is a view of a part of the liquid discharge container shown in FIG. It is an expanded sectional view which shows a mode that a holding convex part detaches | leaves from a holding concave part by the operation member.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

  A liquid discharge container according to an embodiment of the present invention shown in FIG. 1 includes a container main body 1, and the container main body 1 includes a storage container 2 and a pump mechanism P attached thereto.

  The container 2 is made of resin, and includes a cylindrical body 2a, a cylindrical mouth 2b concentric with the body 2a, and a conical shoulder 2c that connects the body 2a and the mouth 2b. It is formed into a bottle shape. The bottom part of the trunk | drum 2a is obstruct | occluded with the lid member 2d, and the inner tray 3 is arrange | positioned inside the lid member 2d. In the container 2, for example, liquid such as liquid cosmetics such as milky lotion and hairdressing material is stored as a content liquid.

  In the illustrated case, the storage container 2 is a resin refill container. However, the storage container 2 is not limited to a resin refill container, and any container that can store liquid can be used. A can etc. can also be used.

  The pump mechanism P is attached to the mouth portion 2 b of the storage container 2 by the mounting cap 4. The mounting cap 4 includes an annular fixed portion 4a having a U-shaped cross section, and is detachably attached to the mouth portion 2b of the storage container 2 by being screwed. Reference numeral 5 denotes a seal member for preventing leakage of the content liquid from the mouth portion 2b to which the mounting cap 4 is attached.

  As the pump mechanism P, an HVD (High Viscosity Pump-Dispenser) type that discharges a liquid having a relatively high viscosity such as an emulsion is used. The pump mechanism P includes a cylinder 6 and a piston guide 7, and a piston 7 a fixed to the piston guide 7 is in sliding contact with the inner surface of the cylinder 6. Further, a spring (not shown) is disposed inside the pump mechanism P, and the piston guide 7 is urged upward in FIG. A stem shaft 8 is fixed to the upper end of the piston guide 7, and a flow path 8 a in the stem shaft 8 communicates with the piston guide 7 and the cylinder 6. A check valve 9 is disposed inside the stem shaft 8.

  A pressing head 10 is fixed to the upper end of the stem shaft 8. The pressing head 10 has a head main body 10a formed in a cylindrical shape with a bottom having a circular cross section, and a fixed cylinder 10b is integrally provided inside the head main body 10a. The lower end portion of the fixed cylinder 10b is connected to the upper end portion of the stem shaft 8 by means such as press fitting, whereby the push-down head 10 is fixed to the stem shaft 8. The fixed cylinder 10b can be fixed to the stem shaft 8 by other means such as adhesion. Further, a nozzle 10c is integrally provided on the outer periphery of the head main body 10a of the pressing head 10 so as to protrude outward in the radial direction (a direction perpendicular to the pressing direction of the pressing head 3). As shown in FIG. 2, the nozzle 10c has a substantially rectangular shape in plan view. As shown in FIG. 1, a discharge hole 10d is provided in the nozzle 10c. The discharge hole 10d communicates with the flow path 8a of the stem shaft 8 through the fixed cylinder 10b.

  As shown in FIG. 1, the pump mechanism P has an upper end portion of the cylinder 6 inserted into the U-shaped groove portion of the fixing portion 4a of the mounting cap 4, and the upper end portion of the cylinder 6 is a retaining portion. 11 is fixed to the mounting cap 4 by being held against the fixing portion 4a. The retaining portion 11 can have a structure using means such as press fitting or undercut engagement, for example.

  The stem shaft 8 is in sliding contact with the inner peripheral surface of the fixing portion 4a of the mounting cap 4, and is supported by the fixing portion 4a and is movable in the vertical direction. In addition, an annular convex portion 8 b that protrudes radially outward is integrally provided on the outer peripheral portion on the lower end side of the stem shaft 8, and on the upper end side of the inner peripheral surface of the fixing portion 4 a of the mounting cap 4, on the radially inner side. An annular concave portion 4b is integrally provided, and the convex portion 8b of the stem shaft 8 is fixed to the stem shaft 8 by being disposed below the concave portion 4b of the fixing portion 4a in FIG. Further, the piston guide 7 is prevented from coming off from the cylinder 6.

  In the pump mechanism P having such a configuration, the content liquid is discharged from the nozzle 10c of the pressing head 10 by performing a pressing operation of pressing the pressing head 10 toward the mouth portion 2b of the container 2. be able to. That is, when the push-down head 10 is pushed down toward the container 2, the piston 7a is pushed toward the inside of the cylinder 6 through the stem shaft 8 and the piston guide 7 fixed thereto. The pump mechanism P performs a pump operation. Then, by the pump operation of the pump mechanism P, the content liquid stored in the storage container 2 is pumped from the cylinder 6 toward the discharge hole 10d. When the hand is released from the pressing head 10 after the pressing, the pressing head 10 is pushed back together with the piston guide 7 by the spring in the cylinder 6 to return to the initial position. At this time, the check valve 9 The liquid contents do not flow backward. By repeatedly pressing and returning the pressing head 10 as described above, the content liquid stored in the storage container 2 can be discharged from the nozzle 10d provided in the pressing head 10 to the outside. When the content liquid is discharged from the storage container 2 by the pump mechanism P, the inner tray 3 rises with the decrease in the content liquid, and even if the content liquid in the storage container 2 decreases, the content liquid is pumped. P can be pumped. When the middle tray 3 is raised, air flows between the lid member 2d and the middle tray 3 from the air hole provided in the lid member 2d.

  In the present embodiment, the mounting cap 4, the cylinder 6, the piston guide 7, the piston 7a, the stem shaft 8, and the push-down head 10 constituting the pump mechanism P are made of resin, but other materials are used. It can also be formed.

  This liquid discharge container is provided with a cover mechanism 12 on the outer side of the container 2, and when not in use, the cover mechanism 12 covers the outer periphery of the pressing head 10 and the pressing head 10 is unexpectedly erroneously operated. Can be prevented. The cover mechanism 12 includes a resin inner cylinder 13, a resin cover cylinder 14, a spring 15 as a biasing member, and a holding mechanism 16. The inner cylinder 13 and the cover cylinder 14 are made of resin, but may be made of other materials.

  A disc-shaped flange 17 projecting radially outward is integrally provided on the outer periphery of the mounting cap 4, and a mounting cylinder 18 that hangs down from a radially intermediate portion is integrally formed on the lower surface of the flange 17. Is provided. The inner cylinder 13 is formed in a cylindrical shape that is concentric with the container 2, and is fitted into the outer periphery of the mounting cylinder 18 at its upper end, and in the axial direction with the upper end in contact with the flange 17. Is fixed to the mounting cylinder 18 by the undercut engagement. Further, the upper end portion of the inner cylinder 13 is prevented from rotating with respect to the mounting cylinder 18, that is, the storage container 2 by a rotation preventing portion 19. As the anti-rotation portion 19, for example, as shown in the drawing, vertical ribs (splines) formed in the circumferential direction along the inner peripheral surface of the upper end portion of the inner cylinder 13, and along the outer peripheral surface of the mounting cylinder 18. Thus, spline fitting can be achieved by meshing with vertical ribs (spline grooves (splines)) formed in the circumferential direction. The inner cylinder 13 fixed to the mounting cap 4 of the container body 1 in such a configuration is disposed on the outer peripheral side of the storage container 2 and is about 4 minutes above the mouth 2b of the storage container 2 and the upper side of the trunk 2a. The range of about 3 is covered.

  The cover cylinder 14 is longer than the inner cylinder 13 and includes a substantially cylindrical cover body 20 concentric with the inner cylinder 13, and about half of the upper side of the cover body 20 is a cylindrical upper side. A cylindrical body 20a is formed, and a lower half of the cylindrical body 20a is a cylindrical lower cylindrical body 20b having a larger diameter than the upper cylindrical body 20a. A cylindrical upper sub-cover 21 is mounted outside the upper cylinder 20a of the cover body 20 so as to cover the outer peripheral surface of the upper cylinder 20a. A concave groove 21a that is recessed in an annular shape is formed on the outer peripheral surface of the upper sub-cover 21. The concave groove 21a serves as a grip portion when the cover cylinder 14 is gripped, and also functions as an anti-slip in the vertical direction.

  The upper sub-cover 21 is fixed in the axial direction with respect to the upper cylindrical body 20a by undercut engagement between a convex portion 22a provided on the upper cylindrical body 20a and a concave portion 22b provided on the upper sub-cover 21. The Further, the upper sub-cover 21 is prevented from rotating with respect to the upper cylindrical body 20 a, that is, the cover main body 20 by the rotation-preventing portion 23. As the anti-rotation portion 23, as in the anti-rotation portion 19, for example, as shown in the figure, the vertical ribs (splines) on the upper cylindrical body 20 a side and the vertical ribs on the upper sub-cover 21 side are provided. Spline fitting by engagement with a rib (spline groove (spline)) can be performed.

  At the upper end of the upper sub-cover 21, an annular wall 21 c that forms a top surface parallel to the top surface of the pressing head 10 is provided. The annular wall 21c has an annular shape having a circular hole corresponding to the shape of the head body 10a of the pressing head 10 on the inner side, and a part of the outer periphery thereof corresponds to the nozzle 10c of the pressing head 10. A rectangular recess 24 is provided. The recessed portion 24 is connected to a vertical wall 24a that hangs downward with respect to the annular wall 21c and a lower end of the vertical wall 24a, and a protruding wall 24b that is spaced downward from the annular wall 21c by the thickness of the nozzle 10c. And. As shown in FIG. 1, the protruding wall 24 b is in contact with a surface facing the lower side in the pressing direction of the nozzle 10 c of the pressing head 10, that is, a surface facing the container 2 side.

  The spring 15 is mounted between the protruding wall 24 b of the upper sub-cover 21 and the flange 17 of the mounting cap 4. A cylindrical holding cylinder 25 hanging from the inner peripheral end is integrally provided at the inner peripheral end of the protruding wall 24b, and the upper end of the spring 15 is disposed on the outer periphery of the holding cylinder 25 and is held by the protruding wall 24b. ing. A cylindrical holding cylinder 26 protruding upward is integrally provided on the flange 17 of the mounting cap 4, and the lower end of the spring 15 is disposed on the inner periphery of the holding cylinder 26 and is held by the mounting cap 4. ing. In this way, the spring 15 is held in the receiving container 2 via the mounting cap 4 and urges the cover cylinder 14 upward in FIG.

  A cylindrical lower sub-cover 27 is mounted inside the lower cylindrical body 20b of the cover main body 20. The connecting piece 20c that connects the upper cylindrical body 20a and the lower cylindrical body 20b is integrally provided with a cylindrical auxiliary cylinder 20d that is separated from the lower cylindrical body 20b toward the inner peripheral side. The upper end portion of the sub cover 27 is fitted between the lower cylinder 20b and the auxiliary cylinder 20d. The lower sub-cover 27 has a shaft formed by an undercut engagement between the concave portion 28a provided in the lower cylindrical body 20b and the convex portion 28b provided in the lower sub-cover 27 with respect to the lower cylindrical body 20b. It is fixed in the direction. Further, the lower sub cover 27 is prevented from rotating with respect to the lower cylindrical body 20 b, that is, the cover main body 20 by a rotation preventing portion 29. As the anti-rotation portion 29, similarly to the anti-rotation portions 19 and 23 described above, for example, as shown in the figure, a vertical rib (spline (groove)) on the lower cylindrical body 20b side and the lower sub-cover 27 It is possible to perform spline fitting by meshing with the vertical rib (spline groove (spline)) on the left side.

  A vertical rib (spline (groove)) 31 is provided on the inner peripheral surface of the cover body 20, and the vertical rib 31 is a vertical rib (spline groove (spline)) provided on the outer peripheral surface of the flange 17 of the mounting cap 4. 32 is engaged. Further, the portion adjacent to the container 2 of the inner cylinder 13 is formed to have a slightly larger diameter than the upper end side that is the attachment portion to the flange 17, and the outer peripheral surface of this large diameter portion is also A vertical rib (spline groove (spline)) 33 that can mesh with a vertical rib (spline (groove)) 31 provided on the inner peripheral surface of the cover body 20 is provided. The cover cylinder 14 is prevented from rotating with respect to the container main body 1 by the engagement of the vertical ribs 31, 32, 33, and in the vertical direction, that is, with respect to the container head 1, ie, the inner cylinder 13. Relative movement is possible in a direction parallel to the pressing direction.

  Although not shown in detail, for example, the pressing head 10 is prevented from rotating with respect to the cover cylinder 14 by providing a rotation stopper between the holding cylinder 25 and the position of the nozzle 10c is the cover cylinder 14. It is always adapted to the position of the recess 24 of the.

  In addition, the rotation prevention part 19,23,29 of each said member and the vertical ribs 31,32,33 can also be provided side by side in the circumferential direction.

  The holding mechanism 16 is provided on the lower end side of the cover mechanism 12. The holding mechanism 16 includes a holding claw 34 as a holding convex portion provided on the lower end side of the inner cylinder 13. The holding claw 34 is provided at the tip of a rectangular substrate portion 35 that is continuous with the inner cylinder 13 on one side, and protrudes from the substrate portion 35 toward the radially outer side (outer peripheral side). The lower surface 34a of the holding claw 34 is formed in a plane perpendicular to the pressing direction of the pressing head 10, and the upper surface 34b is gradually directed outward from the upper side to the lower side in FIG. It is formed on an inclined surface that spreads out. The holding claw 34 can move in a direction approaching and moving away from the cover tube 14 by the elastic deformation of the substrate portion 35.

  On the other hand, the lower cylinder 20b of the cover body 20 is provided with a holding hole 36 as a holding recess and a stopper hole 37. The holding hole 36 and the stopper hole 37 are each formed in a rectangular shape and are spaced apart from each other in the vertical direction. Further, the holding hole 36 and the stopper hole 37 are arranged on the movement path of the holding claw 34 when the cover cylinder 14 is moved relative to the inner cylinder 13 in the vertical direction. It is formed in a size that allows entry.

  As shown in FIG. 3, a rectangular notch 38 that opens to the lower end is formed at the lower end of the lower cylinder 20 b of the cover body 20. On the other hand, an operating piece 39 disposed in the notch 38 is integrally provided at the lower end of the lower sub-cover 27. The operation piece 39 is connected at its lower end to the lower end of the lower sub-cover 27 and can be elastically deformed in a direction to narrow the gap with the lower sub-cover 27. Further, a protrusion 40 protruding toward the inner cylinder 13 is integrally provided on the inner surface of the upper end portion of the operation piece 39 facing the inner cylinder 13 so as to face the holding hole 36. By pushing the upper end portion of the operation piece 39 toward the inside of the inner cylinder 13, the protrusion 40 can enter the holding hole 36.

  Next, use of the liquid discharge container having such a configuration will be described.

  When not in use, the cover cylinder 14 can be in the closed position shown in FIG. That is, when the cover cylinder 14 is in the closed position, the top surface of the pressing head 10 and the top surface of the cover cylinder 14 are flush with each other, and the outer periphery of the pressing head 10 is covered with the cover cylinder 14. The pressing head 10 is not pressed down carelessly. Therefore, by setting the cover cylinder 14 to the closed position (closed state), it is possible to prevent the push-down head 10 from being unexpectedly pushed to discharge the content liquid from the storage container 2. When the cover tube 14 is in the closed position, the lower surface of the nozzle 10c of the push-down head 10 is in contact with the protruding wall 24b of the cover tube 14, so that when the cover tube 14 is held by hand, the push-down head Even if the top surface of 10 is pushed downward, the push-down head 10 is not pushed down.

  Here, when the cover tube 14 is in the closed position, the lower end, that is, the bottom portion of the container 2 protrudes from the lower end of the cover tube 14 and is exposed without being covered by the cover tube 14. When the cover cylinder 14 is in the closed position, the holding claw 34 of the inner cylinder 13 engages with the stopper hole 37 of the cover cylinder 14 so that the cover cylinder 14 is held in the closed position.

  Next, when using this liquid discharge container, as shown by an arrow in FIG. 1, the cover cylinder 14 is directed in a direction parallel to the pressing direction of the pressing head 10, that is, downward. By pushing straightly, the cover cylinder 14 can be moved to the open position. At this time, as shown in FIG. 4, the holding claw 34 engaged with the stopper hole 37 is automatically detached from the stopper hole 37 when the inclined upper surface 34 b abuts against the edge of the stopper hole 37. Therefore, there is no need to operate the holding claw 34. In FIG. 4, the two-dot chain line indicates the state of the holding claw 34 before moving.

  When the cover cylinder 14 moves to the open position shown in FIG. 5, the lower surface 34a of the holding claw 34 of the inner cylinder 13 engages with the holding hole 36 of the cover cylinder 14 as shown in FIGS. The cover cylinder 14 is held in the open position against the spring force of the spring 15. When the cover cylinder 14 is in the open position, that is, in the open state, the lower end of the cover cylinder 14 reaches the bottom of the storage container 2, and the cover cylinder 14 covers the entire outer periphery of the storage container 2. Thus, only the pressing head 10 protrudes.

  Thus, when the cover cylinder 14 is held in the open position, the pressing head 10 protrudes above the cover cylinder 14 and is exposed to the outside. Thereby, the pressing operation of the pressing head 10 becomes possible, and the content liquid can be discharged from the nozzle 10c by pressing the pressing head 10.

  Here, when the cover cylinder 14 moves to the open position, the vertical rib 31 of the cover cylinder 14 engages with the vertical rib 33 of the inner cylinder 13 and the vertical rib 31 reaches the stroke end of the vertical rib 33. The cover cylinder 14 is prevented from moving downward beyond the open position.

  Next, after using the liquid discharge container, the cover cylinder 14 can be easily returned to the closed position shown in FIG. 1 by pushing the operation piece 39 inward in the direction of the arrow shown in FIG. it can. That is, by pushing the operation piece 39 inward, as shown in FIG. 7, the protrusion 40 provided on the operation piece 39 enters the holding hole 36 and the holding claw 34 engaged with the holding hole 36. Can be pushed out of the holding hole 36 to release the engagement between the holding claw 34 and the holding hole 36. In FIG. 7, the two-dot chain line indicates the state of the operation piece 39 and the holding claw 34 before the operation piece 39 is pressed. When the engagement of the holding claw 34 with the holding hole 36 is released, the cover cylinder 14 is pushed upward in FIG. 5 by the spring force of the spring 15 and automatically returns to the closed position. When the cover cylinder 14 moves to the closed position, the holding claw 34 of the inner cylinder 13 engages with the stopper hole 37 of the cover cylinder 14. As a result, the cover cylinder 14 is held in the closed position shown in FIG. 1, and the push-down head 10 is brought into a closed state where it is not pushed down carelessly.

  As described above, in the liquid discharge container according to the present invention, the cover cylinder 14 is opened and the liquid discharge container is brought into an open state, that is, a use state by a simple operation of pushing the cover cylinder 14 in the closed position straight downward. can do. For example, if the cover cylinder 14 is grasped with one hand and the bottom of the container 2 is pressed against a table or the like, the cover cylinder 14 can be easily opened with one hand. In addition, after use, the cover tube 14 can be closed, that is, not used, by a simple operation by simply pressing the operation piece 39.

  In this liquid discharge container, the storage container 2 is a refill container. Therefore, when the storage container 2 becomes empty by use, the empty storage container 2 is removed from the mounting cap 4 and the contents are A new container 2 filled with the liquid can be mounted on the mounting cap 4.

  It goes without saying that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the invention.

  For example, although the HVD type pump mechanism P is used as the pump mechanism P in the above-described embodiment, the present invention is not limited to this, and any foam generating / spraying device or spray discharge device can be used as long as it can discharge liquid. Other pump mechanisms such as a pump mechanism configured in the vessel may be used.

  Moreover, in the said embodiment, although the thing provided with the pump mechanism P as the container main body 1 is used, it is not restricted to this, A liquid can be discharged from a storage container by pressing down of a pressing head. As long as it is a thing, the container main body 1 of other structures, such as sprays, such as aerosol, can also be used, for example.

  Furthermore, the liquid stored in the storage container 2 is not limited to liquid cosmetics such as milky lotion and hairdressing materials, and various liquids such as shampoos and creams can be used.

  Furthermore, in the embodiment, the inner cylinder 13 is provided with the holding claw 34 that is a holding convex part, and the cover cylinder 14 is provided with the holding hole 36 that is a holding concave part. A certain holding hole 36 may be provided, and a holding claw 34 that is a holding convex portion may be provided in the cover cylinder 14.

  Further, if the holding concave portion and the holding convex portion can be engaged with each other to hold the cover cylinder 14 in the open position with respect to the inner cylinder 13, the holding convex portion can be a nail or a protrusion, Can also be used as a groove.

1: Container body 2: Container 2a: Body 2b: Mouth 2c: Shoulder 2d: Lid member 3: Middle dish 4: Mounting cap 4a: Fixed part 4b: Recess 5: Seal member 6: Cylinder 7: Piston guide 7a: Piston 8: Stem shaft
8a: flow path 8b: convex portion 9: check valve 10: push-down head 10a: head main body 10b: fixed cylinder 10c: nozzle 10d: discharge hole 11: retaining portion 12: cover mechanism 13: inner cylinder 14: cover cylinder 15: Spring (biasing member)
16: Holding mechanism 17: Flange 18: Mounting cylinder 19: Non-rotating portion 20: Cover main body 20a: Upper cylinder 20b: Lower cylinder 20c: Connecting piece 20d: Auxiliary cylinder 21: Upper sub cover 21a: Concave groove 21b: Annular convex part 21c: Annular wall 22a: Convex part 22b: Concave part 23: Non-rotating part 24: Concave part 24a: Vertical wall 24b: Protruding wall 25, 26: Holding cylinder 27: Lower sub-cover 28a: Concave part 28b: Convex part 29: Anti-rotation part 31, 32, 33: Vertical rib 34: Holding claw (holding convex part) 34a: Lower surface 34b: Upper surface 35: Substrate part 36: Holding hole (holding concave part) 37: Stopper hole 38: Notch part 39 : Operation piece 40: Projection P: Pump mechanism

Claims (3)

A liquid discharge container comprising a storage container for storing a liquid and a pressing head for discharging the content liquid in the storage container by being pushed down,
An inner cylinder fixed to the storage container and disposed on the outer peripheral side of the storage container;
The pressing direction of the pressing head, which is mounted on the outer peripheral side of the inner cylinder and between the closed position that covers the outer periphery of the pressing head and the open position that exposes the pressing head with respect to the inner cylinder A cover tube that is relatively movable in a direction parallel to
An urging member that is provided between the storage container and the cover cylinder and urges the cover cylinder toward the closed position and holds the cover cylinder in the closed position ;
It is provided on either the inner cylinder or the cover cylinder, and when the cover cylinder is in the open position, it engages with a holding recess provided on the other of the inner cylinder or the cover cylinder. And a holding projection for holding the cover tube in the open position.   2. The liquid discharge container according to claim 1, wherein the push-down head is provided with a nozzle that protrudes in a direction perpendicular to a push-down direction of the push-down head, and when the cover tube is in the closed position, A liquid discharge container, wherein the cover cylinder is provided with a projecting wall that abuts a surface of the nozzle facing downward in the pressing direction.   3. The liquid discharge container according to claim 1, wherein an operation piece that can be operated in a direction in which the holding convex portion is detached from the holding concave portion is provided on the cover cylinder. 4.

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