JP2008213849A - Discharging container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve sealability without substantially changing the outer shape or size of a depression head, to eliminate inconvenience in use, and to securely prevent caking or dripping of the contents remaining in a communication hole. <P>SOLUTION: The discharging container 1 is designed so that contents in a container body 2 are conveyed into a communication hole 30b by the depression of the depression head 30, and are thereby discharged from a nozzle 30a. A hole 30f is formed in the upper wall 30e of the depression head 30. A ringlike valve seat 30c extending over the entire periphery of the communication hole 30b is formed on the internal peripheral face of the communication hole 30b. A valve 4 is disposed in the communication hole 30b. The valve 4 includes: a valve rod 40 inserted in the hole 30f and the internal peripheral hole 30d of the valve seat 30c with the upper part of the valve rod 40 projecting beyond the external part of the depression head 30 from the hole 30f; a valve body 42 disposed on the valve rod 40 and below the valve seat 30c; and a pressing member 41 for pressing the valve rod 40 and valve body 42 upward, thereby bringing the valve body 42 into contact with the valve seat 30c. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a discharge container.

  Conventionally, a discharge container having a configuration in which a discharge pump is attached to the mouth of a container body has been provided. The discharge pump is provided with a pressing head having a nozzle, and the pressing head is formed with a communication hole communicating with the nozzle. In such a discharge container, by pressing down the pressing head, the contents in the container body are sent to the nozzle via the communication hole and discharged from the tip of the nozzle.

  In the discharge container having the above-described configuration, the nozzle tip is opened. For this reason, during the non-use period after using once, the inside of the communicating hole connected with the nozzle is exposed to external air, and the content which remained in the communicating hole solidifies.

  Therefore, conventionally, a technique for providing a lever-type cover on the pressing head has been proposed. According to this technique, when used, the cover is opened by swinging the lever, and the nozzle tip is opened. On the other hand, during the aforementioned non-use period, the cover is closed and the nozzle tip is closed. For this reason, during storage, the inside of the communication hole is not exposed to the outside air, and the solidification or dripping of the residue in the communication hole can be prevented. (For example, refer to Patent Document 1).

Conventionally, a technique for providing a detachable cover on the pressing head has been proposed. According to this technique, when used, the cover is removed and the nozzle tip is opened. After use, the tip of the nozzle is closed by attaching a cover to the pressing head. For this reason, the inside of a communicating hole is not exposed to external air during the above-mentioned non-use period, and the solidification and the dripping of the residue in a communicating hole can be prevented. (For example, refer to Patent Document 2).
JP-A-10-258866 JP 2006-206135 A

  However, in the conventional technique in which the lever-type cover described above is provided, the cover is attached so as to cover the pressing head, which may cause a problem that the size of the pressing head increases.

  In addition, in the conventional technique in which the above-described detachable cover is provided, there is a problem in that the cover has to be attached and detached each time it is used, which is troublesome. In addition, after use, the cover may be forgotten, the cover may not be correctly attached, or the cover may be lost. In this case, solidification of the residue in the communication hole and dripping cannot be prevented. .

  The present invention takes the above-mentioned conventional problems into consideration, and (1) hardly changes the appearance and size of the pressing head, (2) improves the sealing performance, and (3) when used. (4) An object of the present invention is to provide a discharge container that can reliably prevent the residue in the communication hole from solidifying and dripping.

  A discharge container according to the present invention includes a container main body for storing contents, and a discharge pump attached to a mouth portion of the container main body, and the discharge pump includes a nozzle for discharging the contents. A pressing head is provided, and the pressing head is formed with a communication hole that extends in a pressing-down direction of the pressing head and communicates with the nozzle. By pressing down the pressing head, the contents in the container body are In the discharge container that is transferred to the communication hole and discharged from the nozzle, a hole is formed in the upper wall portion of the pressing head, and the inner peripheral surface of the communication hole extends over the entire circumference of the communication hole. A ring-shaped valve seat is formed, and inside the communication hole, a valve rod is inserted into the hole and an inner peripheral hole of the valve seat, and an upper part protrudes from the hole to the outside of the pressing head, and The valve seat provided on the valve stem A valve is provided comprising: a valve body disposed below; and a biasing member that biases the valve rod and the valve body upward to bring the valve body into contact with the valve seat. It is said.

  Due to such characteristics, when not in use, the valve is closed and the communication hole is sealed. That is, the valve body pushed upward by the urging force of the urging member is brought into contact with the valve seat, the inner peripheral hole of the valve seat is closed, and the inside of the communication hole below the valve seat is sealed. On the other hand, in use, the valve is opened by pushing down the upper part of the valve rod protruding from the upper surface of the pressing head with a finger or the like. That is, when the valve stem is pushed down, the valve body provided on the valve stem is also lowered, there is a gap between the valve body and the valve seat, the inner peripheral hole of the valve seat is opened, and a passage through which the contents pass is made. . Subsequently, when the pressing head is pushed down with a finger or the like pushing down the upper part of the valve stem, the contents in the container body are transferred into the communication hole. And the said content is sent upwards through the above-mentioned clearance gap (passage | path), and is discharged from a nozzle. Further, when the finger or the like that has been pressed down is released from the pressing head, the discharge pump is restored and the supply of the contents stops. When the finger or the like is released from the pressing head, the valve is restored and closed. That is, the valve stem and the valve body are urged by the urging member and pushed upward, and the valve body comes into contact with the valve seat. Thereby, the inner peripheral hole of the valve seat is closed, and the inside of the communication hole below the valve seat is sealed.

  The discharge container according to the present invention is preferably provided with a flexible cover that is provided on the upper wall portion of the push-down head and accommodates an upper portion of the valve rod and is sealed.

  Thereby, at the time of use, a valve can be opened by pushing down the upper part of a valve stem from the top of a cover with a finger etc. At this time, since the flexible cover is soft and easily deformed, it is deformed by being pressed with a finger or the like. Moreover, even if the contents leak from the hole in the upper wall portion of the pressing head, it accumulates in the cover and does not leak outside. Further, after use, when the finger or the like that has been pushed down is released from the cover, the discharge pump and the valve are restored, and the cover is also restored to its original shape.

  The discharge container according to the present invention includes a button disposed above the valve rod, and a button guide provided on an upper wall portion of the pressing head to guide the button in the pressing-down direction. It is preferable.

  As a result, when the button is depressed with a finger or the like, the button is guided by the button guide and descends along the direction in which the pressing head is depressed. The lowered button is brought into contact with the upper end surface of the valve stem and presses the upper portion of the valve stem downward along the push-down direction. Thereby, the valve stem is pushed down along the push-down direction, and the valve is opened. Further, when the button is pressed down, the button comes into contact with the upper wall portion of the pressing head, and presses the pressing head downward along the pressing-down direction. As a result, the pressing head is pressed down in the pressing direction, and the contents are transferred into the communication hole and discharged from the nozzle. Further, when the finger or the like that has been pushed down is released from the button, the discharge pump and the valve are restored, and the button is also restored by the urging force of the urging material. That is, when the valve rod is pushed upward by the biasing member, the button is pushed upward by the valve rod. As a result, the button is guided by the button guide and rises in the push-down direction, and returns to the original position.

  According to the discharge container of the present invention, since the valve is provided inside the communication hole, it can be manufactured without changing the appearance shape and size of the pressing head. Further, since the valve body is pressed against the valve seat by the urging member, the sealing performance in the communication hole can be improved. Also, when using, it is only necessary to push down the upper part of the valve stem and the pressing head at once with a finger, and after use, the valve is closed and the communication hole is sealed by simply releasing the finger. , Easy to use without troublesome use, and there is no problem of forgetting to close the valve, not closing it correctly, or losing the valve, so solidification of the residue in the communication hole and dripping of liquid are surely prevented can do.

  Hereinafter, first to fourth embodiments of a discharge container according to the present invention will be described with reference to the drawings. Note that the mouth side (upper side in FIG. 1) of the container body is the upper side, and the bottom side (lower side in FIG. 1) of the container body is the lower side. Moreover, the code | symbol O shown in FIG. 1 has shown the axis line (head axis | shaft) of the pressing head 30 mentioned later.

[First Embodiment]
A first embodiment of a discharge container according to the present invention will be described. 1 is a cutaway view of a discharge container 1 according to the first embodiment, FIG. 2 is a perspective view of a spring plug 4 according to the first embodiment, and FIG. 3 is a pressing head according to the first embodiment. FIG.

As shown in FIG. 1, the discharge container 1 includes a container main body 2 that stores liquid contents and a discharge pump 3 that is attached to the mouth portion 2 a of the container main body 2.
The discharge pump 3 is provided with a pressing head 30 having a nozzle 30a for discharging contents.

  The pressing head 30 is a member that is pushed down along the head axis O, and is attached to the cap 5 attached to the mouth 2a of the container body 2 so as to be able to reciprocate in the direction of the cap axis (head axis O). More specifically, the lower portion of the pressing head 30 is inserted into a cylindrical portion 5b formed at the center of the upper wall portion 5a of the cap 5, and the pressing head 30 protrudes upward from the upper wall portion 5a of the cap 5. .

  The pressing head 30 is formed with a communication hole 30b communicating with the nozzle 30a. The communication hole 30b extends in the pressing-down direction of the pressing head 30, and its lower side is open. Further, a ring-shaped locked flange 30c (valve seat) is formed on the inner peripheral surface of the communication hole 30b so as to extend over the entire circumference of the communication hole 30b. The locked flange 30c is disposed at a position between the nozzle 30a and a holder 31 (foaming member 39) described later. Further, a groove 30h extending in the axial direction of the communication hole 30b (the pressing-down direction of the pressing head 30) is formed on the inner peripheral surface of the communication hole 30b. The groove 30h extends over a range between the above-described locked flange 30c and a holder 31 described later. Further, a plurality of the grooves 30h are formed at intervals in the circumferential direction of the communication hole 30b.

  Further, a pin hole 30f (hole) communicating with the communication hole 30b is formed in the upper wall portion 30e of the pressing head 30. The pin hole 30f is formed on the head axis O, and is formed on the same axis as the inner peripheral hole 30d of the locked flange 30c described above.

  A spring plug 4 (valve) shown in FIG. 2 is arranged inside the communication hole 30b. As shown in FIGS. 1 and 2, the spring plug 4 is composed of a pin 40 (valve rod), a spring 41 (biasing material), and a locking flange 42 (valve element). These pins 40, springs 41, and locking flanges 42 are integrally formed of resin.

  The pin 40 is a hollow columnar member and extends in the direction in which the pressing head 30 is pressed down. The pin 40 is inserted through a pin hole 30f formed on the same axis and an inner peripheral hole 30d of the locked flange 30c. The upper portion of the pin 40 protrudes from the pin hole 30f to the outside of the pressing head 30, and the lower portion of the pin 40 protrudes from the inner peripheral hole 30d of the locked flange 30c to the lower side of the locked flange 30c.

  The locking flange 42 is a ring-shaped flange extending over the entire circumference of the pin 40. The locking flange 42 is provided on the outer peripheral surface of the lower end portion of the pin 40, and is disposed below the locked flange 30c. Further, the outer diameter of the ring-shaped locking flange 42 is larger than the inner diameter of the locked flange 30c (the diameter of the inner peripheral hole 30d).

  The spring 41 is a helical spring-like biasing member that biases the pin 40 and the locking flange 42 described above upward. The spring 41 is suspended from the lower surface of the locking flange 42, extends in the pressing-down direction of the pressing head 30, and is disposed on the same axis as the pin 40 and the locking flange 42. Further, the spring 41 is interposed between the lower surface of the locking flange 42 and the upper end surface of the foam member 39 described later, and is configured to take a reaction force from the upper end surface of the foam member 39.

  As shown in FIG. 1, the discharge pump 3 includes a liquid cylinder 32A, a liquid piston 32B, a valve member 33, a stem 34, a coil spring 35, an air cylinder 36A, an air piston 36B, and a gas / liquid. A mixing chamber 37, a liquid discharge valve 38, a foam member 39, and a holder 31 are provided.

The liquid cylinder 32 </ b> A is a cylindrical member, is disposed in the container main body 2, and extends in the pressing-down direction of the pressing head 30.
The liquid piston 32B is a cylindrical member that extends in the direction in which the pressing head 30 is pressed down, and is disposed inside the liquid cylinder 32A so as to be capable of reciprocating along the head axis O.
The valve member 33 is a rod-shaped member that extends in the pressing-down direction of the pressing head 30. At the lower end of the valve member 33, a valve body 33a that can be seated / separated from the lower end opening of the liquid cylinder 32A is provided, and at the upper end of the valve member 33, a valve that can be seated / separated from the upper end opening of the liquid piston 32B. A body 33b is provided.

The stem 34 is a cylindrical member that extends in the pressing-down direction of the pressing head 30. A liquid piston 32 </ b> B is inserted inside the lower portion of the stem 34. Further, the upper portion of the stem 34 is inserted into the communication hole 30 b of the pressing head 30.
The coil spring 35 is an urging member that extends in the push-down direction of the push-down head 30 and urges the liquid piston 32B upward. The coil spring 35 is interposed between the liquid piston 32B and the valve body 33a at the lower end of the valve member 33 inside the liquid cylinder 32A. The urging force F1 of the coil spring 35 is larger than the urging force F2 of the spring 41 of the spring plug 4 described above.

The holder 31 is a cylindrical member that holds the foam member 39. The holder 31 is inserted into the communication hole 30b of the pressing head 30 and is disposed below the spring plug 4 in the communication hole 30b. The lower part of the holder 31 is inserted into the stem 34.
The foam member 39 is a member having a configuration in which a mesh material is stretched on the end surface of the cylindrical portion, and is held in the holder 31.
The gas-liquid mixing chamber 37 is a chamber formed inside the upper portion of the stem 34 and communicates with the holder 31.

The air cylinder 36A is a cylindrical member extending in the direction in which the pressing head 30 is pressed down, and is provided above the liquid cylinder 32A.
The air piston 36B is slidably disposed inside the air cylinder 36A. Further, the air piston 36B is arranged below the pressing head 30, and is configured to be pressed in the liquid cylinder 32A by being pressed by the pressing head 30 when the pressing head 30 is lowered.
The liquid discharge valve 38 is a spherical member disposed in the gas-liquid mixing chamber 37. The liquid discharge valve 38 is provided at the liquid inlet 37a of the gas-liquid mixing chamber 37 so as to be seated / separated.

  Next, the operation of the discharge container 1 having the above configuration will be described.

  When not in use, as shown in FIG. 3 (a), the spring 41 takes a reaction force from the upper end surface of the foam member 39, and the urging force F2 acts upward, so that the pin 40 and the locking flange 42 are moved upward. Pushed up. Thus, the locking flange 42 is brought into contact with the locked flange 30c, the inner peripheral hole 30d of the locked flange 30c is closed, and the communication hole 30b below the locked flange 30c is sealed. ing.

  On the other hand, at the time of use, as shown in FIG. 3B, first, the upper part of the pin 40 protruding from the pin hole 30f of the pressing head 30 is pushed down with a finger. When the pin 40 is pushed down, the locking flange 42 provided on the pin 40 is lowered together with the pin 40, and the spring 41 supported by the upper end surface of the foam member 39 is pressed via the locking flange 42 and is pivoted. Compressive deformation in the direction. When the locking flange 42 is lowered, there is a gap between the locking flange 42 and the locked flange 30c, and the inner peripheral hole 30d of the locked flange 30c is opened. This creates a passage through which the contents pass. Since the urging force F1 of the coil spring 35 is larger than the urging force F2 of the spring 41 of the spring plug 4, the coil spring 35 is not compressed and deformed at this stage, and the stem 34 and the liquid piston 32B are not lowered. Therefore, the contents in the container body 2 are not transferred into the communication hole 30b.

  Subsequently, the upper wall portion 30e of the pressing head 30 is pressed as it is with the finger pressing the pin 40, and the pressing head 30 is pressed down. When the pressing head 30 is pressed down, the stem 34 and the liquid piston 32B are lowered while the coil spring 35 is compressed and deformed via the stem 34 and the liquid piston 32B. As a result, the contents in the container body 2 are sent into the gas-liquid mixing chamber 37 through the stem 34. When the pressing head 30 is pushed down, the air piston 36B is lowered in the air cylinder 36A by being pressed by the pressing head 30. When the air piston 36B is lowered, the air in the air cylinder 36A is pushed out and supplied into the gas-liquid mixing chamber 37.

  When the pressing head 30 is pushed down as described above, the contents and air are respectively supplied into the gas-liquid mixing chamber 37, and these contents and air are mixed in the gas-liquid mixing chamber 37. Thereafter, the contents mixed with air are sent into the holder 31 and are foamed by passing through the foaming member 39 in the holder 31. The foamed contents enter the communication hole 30b of the pressing head 30 and pass from the groove 30h on the inner peripheral surface of the communication hole 30b through the inner peripheral hole 30d of the locked flange 30c and above the locked flange 30c. Sent to the nozzle 30a from the communication hole 30b and discharged from the nozzle 30a.

  When the finger is released from the pressing head 30 after use, the liquid piston 32B is urged upward by the urging force F1 of the coil spring 35 as shown in FIG. 3A, and the stem 34 and the pressing head 30 are moved. To rise. Thereby, the transfer of the contents in the container body 2 is stopped. At this time, the contents in the communication hole 30b flow downward and return to the stem 34 side. When the finger or the like is moved away from the pressing head 30, the pin 40 and the locking flange 42 of the spring plug 4 are urged upward by the spring 41, and the locking flange 42 is brought into contact with the locked flange 30c. The Thereby, the inner peripheral hole 30d of the locked flange 30c is closed, and the inside of the communication hole 30b below the locked flange 30c is sealed.

According to the discharge container 1 having the above-described configuration, since the spring plug 4 is merely installed inside the communication hole 30b, it can be manufactured with little change in the external shape and size of the pressing head 30. .
Further, since the locking flange 42 is pressed against the locked flange 30c by the spring 41 of the spring plug 4, the sealing performance in the communication hole 30b can be improved.

  Further, when used, it is only necessary to push down the upper portion of the pin 40 and the pressing head 30 with a finger at a time, and there is no trouble of removing or swinging the cover, which is easy to use. In addition, even after use, the spring plug 4 is closed and the communication hole 30b is sealed by simply removing the finger from the pressing head 30, so that there is no trouble of wearing the cover. Therefore, the communication hole 30b can be reliably sealed, and solidification and dripping of the residue in the communication hole 30b can be reliably prevented. .

[Second Embodiment]
A second embodiment of the discharge container according to the present invention will be described. Note that the description of the same configuration as that of the first embodiment described above is omitted. FIG. 4 is a sectional view of the pressing head 30 in the second embodiment.

  As shown in FIGS. 4A and 4B, in the discharge container 101 in the second embodiment, a cover 106 is provided on the upper wall portion 30e of the pressing head 30. The cover 106 is a dome-shaped member that accommodates the upper end of the pin 140 therein. The outer peripheral portion of the cover 106 is fixed to the upper wall portion 30e of the pressing head 30 by a pressing member 107 locked to a locked portion 30i protruding from the upper wall portion 30e of the pressing head 30. The inside of is sealed. The cover 106 is a flexible member and is made of, for example, rubber or resin.

  Further, in the discharge container 101 in the second embodiment, a cylindrical pin hole 30f1 extending in the pressing-down direction of the pressing head 30 is provided in the upper wall portion 30e of the pressing head 30, and the pin hole 30f1 The pin 140 of the spring plug 104 is inserted in the inside.

  The spring plug 104 includes a pin 140, a spring 141, a locking flange 142, and a guide tube 143. The pin 140, the locking flange 142, and the guide tube 143 are integrally formed, and only the spring 141 is a separate part. The guide cylinder 143 is a guide member that guides the raising and lowering of the pin 140 and the locking flange 142, is suspended from the lower surface of the locking flange 142, and extends along the head axis O. The spring 141 is interposed between the lower surface of the locking flange 142 and the upper end surface of the holder 31, and a guide cylinder 143 is disposed in the spring 141.

  In the discharge container 101 having the above-described configuration, the spring plug 104 can be opened by pressing down the upper portion of the pin 140 from above the cover 106 with a finger. At this time, the cover 106 having flexibility is soft and easily deformed, so that it is pressed and deformed by a finger. Further, when the upper part of the pin 140 is pressed downward, the member composed of the pin 140, the locking flange 142, and the guide cylinder 143 is guided by the cylindrical pin hole 30f1 and the guide cylinder 143 and straight along the head axis O. Descend. Furthermore, even if the content leaks from the pin hole 30f1, it accumulates in the cover 106 and does not leak outside. On the other hand, when the finger is removed from the cover 106 after use, the discharge pump 3 and the spring plug 104 are restored. At this time, the cover 106 is also restored to its original shape.

  According to the discharge container 101 having the above-described configuration, even if the content leaks from the pin hole 30f1, the leaked content does not leak to the outside of the cover 106. Therefore, the leaked content may adhere to the finger pressing the pressing head 30. In addition, the finger can be prevented from being stained with the contents.

  Further, according to the discharge container 101 having the above-described configuration, the member composed of the pin 140, the locking flange 142, and the guide cylinder 143 moves straight down along the head axis O by the cylindrical pin hole 30f1 and the guide cylinder 143. The operability can be improved. Note that operability can be improved with only one of the cylindrical pin hole 30f1 and the guide cylinder 143.

[Third Embodiment]
A third embodiment of the discharge container according to the present invention will be described. Note that a description of the same configurations as those of the first and second embodiments described above will be omitted. FIG. 5 is a sectional view of the pressing head 30 according to the third embodiment.

  As shown in FIGS. 5A and 5B, in the discharge container 201 according to the third embodiment, a button 208 is disposed above the pin 40 and above the cover 106, and the pressing head 30. A button guide 209 is provided on the upper wall portion 30e.

  The button 208 includes an upper wall portion 208a, a columnar pressing portion 208b suspended from the center of the lower surface of the upper wall portion 208a, a cylindrical side wall portion 208c suspended from the outer periphery of the upper wall portion 208a, It is composed of a hook-shaped locking portion 208d that protrudes outside the side wall portion 208c and is formed over the entire periphery of the lower end portion of the side wall portion 208c. The pressing portion 208 b is disposed on the same axis as the pin 40.

  The button guide 209 is a member for guiding the button 208 in the pressing-down direction of the pressing head 30, and is a cylindrical side wall projecting from the upper wall portion 30 e of the pressing head 30 and extending in the pressing-down direction of the pressing head 30. It is comprised from the part 209a and the ring-shaped to-be-latched part 209b which protruded inside the side wall part 209a and was formed over the upper end part periphery of the side wall part 209a.

  In the discharge container 201 having the above-described configuration, when the upper surface of the upper wall portion 208a of the button 208 is pressed with a finger during use, the button 208 is lowered along the side wall portion 209a of the button guide 209 and the pressing head 30 is pushed down. Is pushed straight down. The lower end surface of the pressing portion 208b is brought into contact with the upper end surface of the pin 40 through the cover 106, and the pin 40 is pressed straight in the pressing down direction of the pressing head 30. Thereby, the pin 40 is pushed down and the spring stopper 4 is opened.

  Subsequently, when the button 208 is further pushed down, the locking portion 208d of the button 208 is brought into contact with the locked portion 30i of the pressing head 30, and the pressing head 30 is pressed straight down along the head axis O. Thereby, the pressing head 30 is pushed down, and the contents are transferred into the communication hole 30b and discharged from the nozzle 30b.

  When the finger is released from the button 208, the discharge pump 3 and the spring plug 4 are restored. At this time, the pin 40 pushed upward by the spring 41 presses the pressing portion 208 b of the button 208. As a result, the button 208 rises along the side wall portion 209a of the button guide 209, is pushed straight up in the push-down direction of the push-down head 30, and returns to the original position before the push-down.

  According to the discharge container 201 having the above-described configuration, since the button 208 is guided by the button guide 209 in the pressing-down direction of the pressing head 30, the pin 40 can be pressed down straight along the pressing-down direction of the pressing head 30. Can be improved.

[Fourth Embodiment]
A fourth embodiment of the discharge container according to the present invention will be described. Note that a description of the same configurations as those of the first, second, and third embodiments described above is omitted. FIG. 6 is a cross-sectional view of the pressing head 30 in the fourth embodiment.

  As shown in FIGS. 6A and 6B, in the discharge container 301 in the fourth embodiment, the spring 341 of the spring plug 304 is disposed outside the pressing head 30. More specifically, the spring plug 304 includes a top plate portion 343, a pin 340 suspended from the center of the bottom surface of the top plate portion 343, an enlarged diameter portion 342 (valve element) provided at the lower end of the pin 340, a top plate A spring 341 is provided between the lower surface of the plate portion 343 and the upper surface of the upper wall portion 30e of the pressing head 30 and extends in the pressing-down direction of the pressing head 30. The pin 340, the enlarged diameter portion 342, and the top plate portion 343 are integrally formed, and only the spring 341 is a separate part. The diameter of the enlarged diameter portion 342 is larger than the inner diameter of the locked flange 30c, and the enlarged diameter portion 342 is disposed below the locked flange 30c.

In the discharge container 301 having the above-described configuration, when not in use, as shown in FIG. 6A, the spring 341 takes a reaction force from the upper wall portion 30 e of the pressing head 30, so The plate portion 343 is biased upward. Thereby, the enlarged diameter part 342 is contact | abutted to the to-be-latched flange 30c, and the inner peripheral hole 30d of the to-be-latched flange 30c is obstruct | occluded.
On the other hand, at the time of use, as shown in FIG. 6B, the pin 340 is pushed down by pressing the top plate portion 343 with a finger from above the cover 106. Thereby, the enlarged diameter part 342 descends together with the pin 340, and the inner peripheral hole 30d of the locked flange 30c is opened.

According to the discharge container 301 having the above-described configuration, the operability can be improved because the pin 340 is guided to the head axis O by the spring 341.
Further, since the spring 341 is not disposed in the communication hole 30b, the content easily flows in the communication hole 30b, and a sufficient amount of the content can be reliably discharged from the nozzle 30a.

The embodiment of the discharge container according to the present invention has been described above. However, the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the spirit of the present invention.
For example, in the first to fourth embodiments described above, the coil spring-like springs 41, 141, 341 are used as the biasing members for the spring plugs 4, 104, 304. It is also possible to use a biasing material.

  For example, as shown in FIG. 7, a biasing member 441 having an elliptic ring-shaped elastic body 443 arranged along a vertical plane can be used. A base 444 that abuts on the upper end surface of the holder 31 and takes a reaction force is provided at the lower end of the biasing member 441, and an elliptical ring-shaped elastic body 443 is provided between the pin 40 and the base 444. Is arranged. According to the biasing member 441, when the pin 40 is pushed down with a finger, the elliptical ring-shaped elastic body 443 is deformed from the state shown in FIG. 7A to the collapsed state shown in FIG. 7B. On the other hand, when the finger is released from the pin 40, the elliptical ring-shaped elastic body 443 returns to the original state shown in FIG. 7A from the collapsed state shown in FIG. As a result, the pin 40 and the locking flange 42 are raised.

  Further, as shown in FIGS. 8 and 9, a cylindrical body 544 disposed outside the locking flange 42, and a plurality of elastic bodies laid between the cylindrical body 544 and the locking flange 42. An urging member 541 made of 543 can also be used. The cylindrical body 544 is fixed to the lower surface of the locked flange 30c. According to the biasing member 541, when the pin 40 is pushed down with a finger, the plurality of elastic bodies 543 are elastically deformed. On the other hand, when the finger is released from the pin 40, the elastic body 543 returns to the original state. As a result, the pin 40 and the locking flange 42 are raised.

  In the above-described embodiment, the air cylinder 36A, the air piston 36B, the gas-liquid mixing chamber 37, the liquid discharge valve 38, the foaming member 39, and the holder 31 are provided, and the contents in the container body 2 are foamed. However, the present invention is not limited to this, and the air cylinder 36A, air piston 36B, gas-liquid mixing chamber 37, liquid discharge valve 38, foam member 39, The discharge container which does not have the holder 31 and discharges the contents in the container main body 2 as it is may be used.

  In addition, in the range which does not deviate from the main point of this invention, it is possible to replace suitably the component in above-mentioned embodiment with a well-known component, and you may combine the above-mentioned modification suitably.

It is a fracture view of a discharge container for explaining a 1st embodiment of the present invention. It is a perspective view of the valve | bulb for demonstrating the 1st Embodiment of this invention. It is sectional drawing of the pressing head for demonstrating the 1st Embodiment of this invention. It is sectional drawing of the pressing head for demonstrating the 2nd Embodiment of this invention. It is sectional drawing of the pressing head for demonstrating the 3rd Embodiment of this invention. It is sectional drawing of the pressing head for demonstrating the 4th Embodiment of this invention. It is sectional drawing of the pressing head for demonstrating other embodiment of this invention. It is sectional drawing of the pressing head for demonstrating other embodiment of this invention. It is a perspective view of the valve | bulb for demonstrating other embodiment of this invention.

Explanation of symbols

1, 101, 201, 301 Discharge container 2 Container body 2a Mouth 3 Discharge pump 30 Press head 30a Nozzle 30b Communication hole 30c Locked flange (valve seat)
30d Inner peripheral hole 30e Upper wall part 30f, 30f1 Pin hole (hole)
4, 104, 304 Spring stopper (valve)
40, 140, 340 pins (valve stem)
41, 141, 341 Spring (biasing material)
42, 142 Locking flange (valve)
106 Cover 208 Button 209 Button guide 342 Expanded part (valve)
441, 541 Biasing material

Claims (3)

A container main body for storing contents, and a discharge pump attached to the mouth of the container main body,
The discharge pump includes a pressing head having a nozzle for discharging the contents,
The pressing head is formed with a communication hole extending in the pressing-down direction of the pressing head and communicating with the nozzle.
In the discharge container in which the content in the container body is transferred to the communication hole and discharged from the nozzle by pushing down the pressing head.
A hole is formed in the upper wall portion of the pressing head,
A ring-shaped valve seat extending over the entire circumference of the communication hole is formed on the inner peripheral surface of the communication hole,
Inside the communication hole, a valve rod inserted into the hole and an inner peripheral hole of the valve seat and having an upper portion protruding from the hole to the outside of the pressing head, and a valve rod provided on the valve rod and provided on the valve seat A valve is provided comprising: a valve body disposed below; and a biasing member that biases the valve rod and the valve body upward to bring the valve body into contact with the valve seat. A discharge container. The discharge container according to claim 1, wherein
A discharge container provided with a flexible cover which is provided on an upper wall portion of the pressing head and accommodates an upper portion of the valve rod and is sealed. The discharge container according to claim 1 or 2,
A discharge container comprising: a button disposed above the valve stem; and a button guide provided on an upper wall portion of the pressing head for guiding the button in the pressing-down direction.

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