JP6315454B2 - Pump type dispenser - Google Patents

Description

  The present invention relates to a pump-type dispenser, and more particularly, to a pump-type dispenser including a nozzle head that drives a pump by pushing and restoring, and a maintenance mechanism that can maintain the pushed-in state of the nozzle head.

  Some pump-type dispensers that include a nozzle head that enables the pump to be driven and the contents to be discharged by pressing and restoring include a maintenance mechanism that can maintain the state in which the nozzle head is pressed. As such a pump-type dispenser, Patent Document 1 discloses a screw-like shape in which a screw-like engaged portion of a nozzle head is coupled by pushing the nozzle head downward and rotating it around the axis of the pump as it is. What is provided with the adapter which has an engaging part is disclosed. A container with a dispenser in which such a pump-type dispenser is screwed and fixed to the mouth of the container is distributed with the nozzle head pushed in, thereby preventing the nozzle head from popping out. In addition to preventing inadvertent discharge of objects, there is no wasted space and transportation efficiency is improved.

JP 2011-245455 A

  Conventionally, however, it has been necessary to rotate the core (mold), remove it along the thread, and release it. Therefore, there is a possibility that the engagement between the engaged portion of the nozzle head and the engaging portion of the adapter may be loosened during transportation or collision between the nozzle heads.

  Further, if the nozzle head disclosed in Patent Document 1 is formed by forcible punching (upper and lower punching) for simplification of the mold structure, there is a risk that the thread in the threaded engaged portion of the nozzle head will be sag. . If the thread sag, the engagement between the engaged portion of the nozzle head and the engaging portion of the adapter is particularly easy to loosen.

  An object of the present invention is to provide a pump type dispenser in which a maintenance mechanism that maintains a state where a nozzle head is pushed in is not easily released.

A pump-type dispenser as a first aspect of the present invention includes a base that is screwed and fixed to a mouth portion of a container, and is suspended and fixed through the mouth portion by the base, and the contents inside the container are A pump to be pumped up, a nozzle head that drives the pump by repeated pushing and restoring, and discharges the pumped contents to the outside, an adapter that is attached to the pump and that prevents the pump from coming off above the base, A pump-type dispenser comprising a maintenance mechanism capable of maintaining a state in which the nozzle head is pushed in between the nozzle head and the adapter, wherein the maintenance mechanism includes the nozzle head and the adapter. An inner thread surface provided on one side of the inner thread surface and an inner thread surface on which the female thread portion is formed. The outer peripheral surface Flip portion is formed, fits into each other physician upon engagement completion of the internal thread portion and the male screw portion, the cross section is an arc-shaped convex and concave portions continuous to the fitting direction is plural number, the convex portion is in contact with the screw portion for the first time the recess is formed at the time of engagement completion, the nozzle head, characterized in der Rukoto those molded by forcibly vent is there.

  As one embodiment of the present invention, it is preferable that the female screw portion is formed on the nozzle head and the male screw portion is formed on the adapter.

As one embodiment of the present invention, the concave portion is at a lower portion of the female screw portion , the convex portion is at a lower portion of the male screw portion , or the concave portion is at an upper portion of the male screw portion, and the convex portion is on top of the female screw portion is formed can have a structure Ru Empire.
Moreover, as one embodiment of this invention, it can be set as the structure which provided more numbers of the said recessed parts than the number of the said convex parts.

  As one embodiment of the present invention, one of the concave portion and the convex portion is formed on a side wall of one thread of the female screw portion and the male screw portion, and the other of the concave portion and the convex portion is the female screw portion. And it can be set as the structure currently formed in the side wall of the other screw thread of the said external thread part. As one embodiment of the present invention, one of the concave portion and the convex portion is formed at the top of one thread of the female screw portion and the male screw portion, and the other of the concave portion and the convex portion is the It can be set as the structure currently formed in the bottom wall between the internal thread part and the other thread of the said external thread part.

  ADVANTAGE OF THE INVENTION According to this invention, the pump type extractor which the maintenance mechanism which maintains the state into which the nozzle head was pushed in cannot be cancel | released carelessly can be provided.

It is the side view which showed a part in section about the pump dispenser as one embodiment of the present invention. It is sectional drawing which shows the maintenance mechanism of the pump dispenser shown in FIG. It is a figure which shows the detail of the internal thread part and external thread part of the maintenance mechanism shown in FIG. FIG. 3A is a diagram showing the female screw portion, and FIG. 3B is a diagram showing the male screw portion. It is sectional drawing which shows the modification of the maintenance mechanism shown in FIG. It is a figure which shows the detail of the internal thread part and external thread part of the maintenance mechanism shown in FIG. Fig.5 (a) is a figure which shows an internal thread part, FIG.5 (b) is a figure which shows an external thread part.

  Hereinafter, an embodiment of a pump type dispenser according to the present invention will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected to the common member in each figure.

  FIG. 1 is a side view showing a part of the pump-type dispenser 1 as a present embodiment of the pump-type dispenser according to the present invention in section. As shown in FIG. 1, a pump-type dispenser 1 includes a base 2 screwed and fixed to a mouth M of the container, and a base suspended and fixed by the base through the mouth M of the container. A pump 3 for pumping up objects, a nozzle head 4 for driving the pump 3 by repeating pushing and restoring, and discharging the pumped contents to the outside, and a stopper 3 attached to the pump 3 and preventing the base 2 from coming off upward And an adapter 5. The pump-type dispenser 1 includes a maintenance mechanism 6 that can maintain the state in which the nozzle head 4 is pushed in between the nozzle head 4 and the adapter 5. FIG. 1 shows a state in which the nozzle head 4 is maintained in a pressed state by the maintenance mechanism 6. Hereinafter, each member in pump type extractor 1 of this embodiment and the details of the characteristic part constituted by each member are explained.

  The base 2 includes a circular flat plate top plate 21 having an opening 24 in the center, and a cylindrical tube body 22 that hangs down from the outer edge of the top plate 21 and covers the mouth M of the container. The cylindrical body 22 is formed on the inner surface of the cylindrical body 22 and is formed on the outer surface of the cylindrical body 22 with a screw portion 25 screwed to the mouth M of the container, and means the vertical direction (meaning the vertical direction in FIG. 1). And a concave and convex anti-slip 23 extending to the surface. The non-slip 23 prevents the finger from slipping when the cylindrical body is screwed to the mouth M of the container, so that the base 2 can be firmly attached to the mouth M of the container.

  The pump 3 includes a cylinder 31 having a cylindrical outer shape, a suction pipe 32 attached to a lower portion of the cylinder 31, and a piston for sucking the contents contained in the container into the internal space of the cylinder 31 through the suction pipe. (Not shown), a spring (not shown) that applies an upward biasing force to the piston, a cylindrical stem 33 that pushes the piston downward, and an outer cylinder member that is positioned radially outward of the stem 33 38 and a valve body (not shown) that enables the pump 3 to be opened and closed.

  A hollow disk-like flange 37 that is integrally connected to the outer peripheral wall of the cylinder 31 and extends radially outward from the outer peripheral wall of the cylinder 31 is provided on the upper portion of the cylinder 31. The flange 37 is sandwiched between the packing provided on the upper part of the mouth part M of the container and the top plate 21, and the pump 3 can be suspended and fixed through the mouth part M of the container. In the cylinder 31, a cylindrical body 34 protruding above the opening 24 of the top plate 21 in the base 2 is formed at a further upper portion of the flange 37. The base 2 has a cylindrical body centered on the cylindrical body 34. 34 can be rotated in the circumferential direction. Further, a claw portion 35 that engages with an adapter 5 described later is formed on the outer peripheral surface of the cylindrical body 34. Note that a communication port (not shown) is defined on the peripheral wall of the cylinder 31 at a position below the flange 37, and this communication port moves the outer cylinder member 38 in the vertical direction with respect to the cylinder 31. Can be opened and closed.

  The nozzle head 4 includes an operation unit 41 that directly applies a pressing force from the outside, and a nozzle 42 that is integrally connected to the operation unit 41. The operation unit 41 has a top plate 43, a cylindrical first cylinder 44 that hangs down from the outer edge of the top plate 43 and forms the outer peripheral contour of the nozzle head 4, and a concentric arrangement with the first cylinder 44. The second cylindrical body 45 is concentrically arranged with the second cylindrical body 45 hanging from the lower surface of the top plate 43 on the inner side of the first cylindrical body 44, and the second cylindrical body 45. And a third cylinder 46 depending from the lower surface of the top plate 43 on the inner side. The nozzle 42 communicates with the hollow portion of the third cylinder 46 of the operation unit 41 and includes a discharge port 47 that discharges the contents inside the container to the outside.

  On the inner peripheral surface of the second cylinder 45, a female screw portion 10 that can be screw-coupled with a male screw portion 11 of the adapter 5 described later is formed. FIG. 1 shows a state where the male screw portion 11 of the adapter 5 and the female screw portion 10 of the nozzle head 4 are screw-coupled. The detail of the maintenance mechanism 6 provided with the external thread part 11 and the internal thread part 10 is mentioned later (refer FIG. 3 (a), (b)).

  The third cylindrical body 46 is fitted into the stem 33 by being inserted into the stem 33 such that the lower outer peripheral surface thereof is in close contact with the inner peripheral surface of the stem 33 of the pump 3. In addition, a rib that protrudes in a radial direction from the lower portion inserted into the stem 33 is formed on the upper portion of the outer wall of the third cylindrical body 46, and the lower surface of this rib is in contact with the upper end of the stem 33. . By the fitting and contact between the third cylinder 46 and the stem 33, the pressing force (pressing force) applied to the nozzle head 4 from the outside is transmitted to the stem 33 via the third cylinder 46. Can do. The stem 33 is pushed downward in the vertical direction by the pressing force applied to the nozzle head 4 from the outside, and moves along the axis O of the pump 3. When the pressing force applied from the outside to the nozzle head 4 is released, the stem 33 is pushed upward by the biasing force of the spring described above, and this biasing force is transmitted to the third cylindrical body 46. The nozzle head 4 also moves upward. In this manner, the pump 3 can be driven by repeating the pushing of the nozzle head 4 and the restoration by the spring of the pump 3. As shown in FIG. 1, the lower surface of the rib described above can be brought into contact with the upper end of the outer cylinder member 38 in addition to the upper end of the stem 33. It is possible to move in the direction, so that the communication port defined in the peripheral wall of the cylinder 31 can be opened and closed.

  The adapter 5 is located at the upper part of the base 2 and engages with the pump 3 to prevent the base 2 from coming off upward. The adapter 5 includes a circular flat plate-shaped top plate 51 having an opening at the center, a first cylinder 52 that hangs from the outer edge of the top plate 51 and forms an outer peripheral contour of the adapter 5, and the first cylinder 52. A concentric arrangement with the second cylinder 53 hanging from the lower surface of the top plate 51 inside the first cylinder 52, and the first cylinder 52 and the second cylinder 53, Inside the second cylinder 53, a third cylinder 54 that hangs down from the lower surface of the inner edge of the top plate 51 and a fourth cylinder 55 that rises upward from the inner edge of the top plate 51 are provided.

  The inner peripheral surface of the second cylinder 53 is provided with an engaging portion 56 that engages with the claw portion 35 formed on the outer peripheral surface of the cylinder 34 of the pump 3, and the cylinder 34 is connected to the second cylinder 53. The adapter 5 is fixed to the pump 3 by positioning the locking portion 56 and the claw portion 35 so as to be positioned between the first cylindrical body 54 and the third cylindrical body 54. With this configuration, the top plate 21 of the base 2 can be interposed between the flange 37 of the pump 3 and the first cylindrical body 52 of the adapter 5. It is regulated by the lower end of the first cylindrical body 52 of the adapter 5, and the base 2 does not fall upward. The base 2 is placed on the flange 37 of the pump 3, and a clearance is provided between the first cylinder 52 of the adapter 5, so that the base 2 is in a rotatable state.

  The third cylinder 54 is inserted into the cylinder 31 so that the outer peripheral surface of the lower part thereof is in contact with the inner peripheral surface of the cylinder 31 of the pump 3. Further, between the outer peripheral surface of the third cylindrical body 54 and the inner peripheral surface of the cylindrical body 34 of the cylinder 31, a rotation preventing mechanism such as an uneven portion is provided. A male screw portion 11 is formed on the outer peripheral surface of the fourth cylinder 55, and the male screw portion 11 is formed on the inner peripheral surface of the second cylinder 45 of the nozzle head 4 as shown in FIG. 1. The nozzle head 4 is maintained in the pushed-in state by screwing with the nozzle 10. The detail of the maintenance mechanism 6 provided with the external thread part 11 and the internal thread part 10 is mentioned later (refer FIG. 3 (a), (b)). The inner peripheral surface of the third cylinder 54 and the inner peripheral surface of the fourth cylinder 55 define a hollow portion, and the stem 33 of the pump 3 and the third cylinder 46 of the nozzle head 4 pump the inside of the hollow portion. The nozzle head 4 can be pushed and restored by this movement.

  In the present embodiment, the claw portion 35 is formed on the outer peripheral surface of the cylinder 34 of the pump 3 and the locking portion 56 is formed on the inner peripheral surface of the second cylinder 53 of the adapter 5. The position of the stop portion is not limited to this, and for example, a claw portion is formed on the inner peripheral surface of the cylinder of the pump and a locking portion is provided on the outer peripheral surface of the second cylinder of the adapter. This cylinder can be positioned between the first cylinder and the second cylinder of the adapter, and the claw portion and the locking portion can be locked. Moreover, it is good also as a structure which forms a latching | locking part in a pump and forms a nail | claw part which engages with a latching | locking part in an adapter.

  Next, the maintenance mechanism 6 that can maintain the state in which the nozzle head 4 is pushed in will be described. The maintenance mechanism 6 of the present embodiment includes a female screw portion 10 formed on the nozzle head 4 and a male screw portion 11 formed on the adapter 5, and includes the female screw portion 10 and the male screw portion 11 as shown in FIG. The nozzle head 4 is maintained in the pushed-in state by screwing together. More specifically, after pressing the nozzle head 4 with a pressing force from the outside, the nozzle head 4 is rotated around the axis O of the pump 3 with respect to the adapter 5, and the female screw portion 10, the male screw portion 11, The nozzle head 4 can be maintained in the pushed-in state by screwing together. In the present embodiment, when the nozzle head 4 is further rotated and the nozzle head 4 is in a position where the nozzle head 4 cannot be rotated any more with respect to the adapter 5, the fastening of the female screw portion 10 and the male screw portion 11 is completed. . More specifically, in the present embodiment, the position at which the lower end of the second cylinder 45 of the nozzle head 4 abuts on the upper surface of the top plate 51 of the adapter 5 is set when the fastening of the female screw portion 10 and the male screw portion 11 is completed. .

  FIG. 2 is an enlarged cross-sectional view of the vicinity of the female screw portion 10 and the male screw portion 11 in FIG. FIG. 3 is a diagram showing details of the female screw portion 10 and the male screw portion 11. Specifically, FIG. 3A is a diagram showing a part of the female screw portion 10 provided in the nozzle head 4, and FIG. 3B is a diagram showing a part of the male screw portion 11 provided in the adapter 5. FIG. As shown in FIG. 3A and FIG. 3B, the inner peripheral surface of the second cylinder 45 of the nozzle head 4 in which the internal thread portion 10 is formed has three concave portions having a circular cross section. 12 is formed. In addition, two convex portions 13 having a circular cross section are formed on the outer peripheral surface of the fourth cylinder 55 of the adapter 5 where the male screw portion 11 is formed. The concave portion 12 and the convex portion 13 are fitted to each other when the fastening of the female screw portion 10 and the male screw portion 11 is completed. The maintenance mechanism 6 according to the present embodiment includes the concave portion 12 and the convex portion 13, so that it is difficult to loosen the screw connection between the female screw portion 10 and the male screw portion 11 after the fastening of the female screw portion 10 and the male screw portion 11 is completed. it can. That is, the concave portion 12 and the convex portion 13 function as a locking mechanism. The inner peripheral surface of the second cylinder 45 of the nozzle head 4 in which the female thread portion 10 is formed means the entire inner wall of the second cylinder 45 including the screw thread 14 of the female thread portion 10. The outer peripheral surface of the fourth cylinder 55 of the adapter 5 in which the male screw part 11 is formed means the entire outer wall of the fourth cylinder 55 including the screw thread 15 of the male screw part 11.

  In the present embodiment, as shown in FIGS. 2 and 3, the recess 12 is formed in the lower portion of the female screw portion 10, and the convex portion 13 is formed in the lower portion of the male screw portion 11. With such a configuration, the convex portion 13 does not slide with the surface of the female screw portion 10 at the beginning of the screw connection between the female screw portion 10 and the male screw portion 11, and the female screw portion 10 and the male screw portion 11. For the first time, the surface of the female screw portion 10 is brought into contact with the screw. Therefore, it is possible to prevent the convex portion 13 and the surface of the female screw portion 10 from sliding during the screw connection between the female screw portion 10 and the male screw portion 11 and the surface of the convex portion 13 and the female screw portion 10 being shaved. .

  Further, as shown in FIGS. 2 and 3, the concave portion 12 of the present embodiment is formed on the upper side wall of the lower end portion 14 a of the helical thread 14 of the female screw portion 10, and the convex portion 13 of the present embodiment is It is formed on the lower side wall 15 a of the lower end portion 15 a of the helical thread 15 of the male screw portion 11. In the present embodiment, as described above, the fastening of the female screw portion 10 and the male screw portion 11 is completed at the position where the lower end of the second cylinder 45 of the nozzle head 4 contacts the upper surface of the top plate 51 of the adapter 5 ( (See FIGS. 1 and 2). That is, the vertical position of the screw thread 14 of the female screw portion 10 is such that the lower end of the second cylinder 45 of the nozzle head 4 and the top surface of the top plate 51 of the adapter 5 when the fastening of the female screw portion 10 and the male screw portion 11 is completed. It becomes substantially constant by contact with. Therefore, if the concave portion 12 and the convex portion 13 are provided on the side walls of the screw threads 14 and 15 as in the present embodiment, the concave portion 12 and the convex portion 13 are completed when the fastening between the female screw portion 10 and the male screw portion 11 is completed. Can be accurately fitted. In the present embodiment, the lower end portion 14a of the screw thread 14 of the female screw portion 10 is positioned below the lower end portion 15a of the screw thread 15 of the male screw portion 11 when the fastening of the female screw portion 10 and the male screw portion 11 is completed. Therefore, the concave portion 12 is provided on the upper side wall of the lower end portion 14a of the screw thread 14 and the convex portion 13 is provided on the lower side wall of the lower end portion 15a of the screw thread 15. However, the position of the side wall in which the concave portion and the convex portion are provided is not limited to this position. For example, when the fastening of the female screw portion and the male screw portion is completed, when the lower end portion of the screw thread of the male screw portion is positioned below the lower end portion of the screw thread of the female screw portion, the concave portion is below the screw thread of the female screw portion. In addition, the convex portion can be provided on the side wall on the upper side of the thread of the male screw portion.

  In the maintenance mechanism 6 of the present embodiment, a plurality of recesses 12 and protrusions 13 (three recesses 12 and two protrusions 13) are provided, but the number is not limited to this. For example, it can also be set as the structure which provided the recessed part and the convex part 1 each. However, it is preferable that the number of the concave portions 12 is larger than the number of the convex portions 13 as in the present embodiment. With such a configuration, the position of the concave portion 12 into which the convex portion 13 is fitted can be changed according to the tightening force for fastening the female screw portion 10 and the male screw portion 11. It is possible to give a slight degree of freedom to the position where the fastening between the screw 11 and the male screw portion 11 is completed.

  Further, in this embodiment, the position where the lower end of the second cylinder 45 of the nozzle head 4 abuts on the upper surface of the top plate 51 of the adapter 5 is set when the fastening of the female screw portion 10 and the male screw portion 11 is completed. The position is not limited to the position, and it is also possible to change the position of the completion of fastening between the female screw portion and the male screw portion according to the purpose and application.

  Furthermore, in this embodiment, the internal thread portion 10 is formed in the nozzle head 4 and the external thread portion 11 is formed in the adapter 5, but the external thread portion is provided in one of the nozzle head and the adapter, and the other is engaged with the internal thread portion. Any configuration may be used as long as the portion is provided, and a male screw portion may be formed on the nozzle head and a female screw portion may be formed on the adapter. For example, the upper end of the pump stem is fitted into the third cylinder of the nozzle head, and the male screw portion is provided on the outer peripheral surface of the third cylinder of the nozzle head, while the third cylinder or the fourth cylinder of the adapter is provided. It is good also as a structure which provides an internal thread part in an internal peripheral surface.

  Furthermore, in this embodiment, the concave portion 12 is formed on the side wall of the screw thread 14 of the female screw portion 10, and the convex portion 13 is formed on the side wall of the screw thread 15 of the male screw portion 11. One side may be formed on the side wall of one thread of the female thread part and the male thread part, and the other of the concave part and the convex part may be formed on the side wall of the other thread of the female thread part and the male thread part. . Therefore, it is good also as a structure which forms a convex part in the side wall of the thread of an internal thread part, and forms a recessed part in the side wall of the thread of an external thread part.

  Next, modified examples of the concave portion 12 and the convex portion 13 in the pump type dispenser 1 will be described. 4 and 5 show the maintenance mechanism 60 including the concave portion 120 and the convex portion 130 formed at positions different from the concave portion 12 and the convex portion 13 described above. In addition, since it is common with the structure of the pump type extractor 1 except the position where a recessed part and a convex part are formed, description is abbreviate | omitted here. As shown in FIGS. 4 and 5, the concave portion 120 is formed on the upper portion of the male screw portion 11, and the convex portion 130 is formed on the upper portion of the female screw portion 10. By adopting such a configuration, the convex portion 130 does not slide on the surface of the male screw portion 11 at the beginning of the screw connection between the female screw portion 10 and the male screw portion 11, and the female screw portion 10 and the male screw portion 11. Only when the fastening is completed, the surface of the male screw portion 11 comes into contact. Therefore, it is possible to prevent the convex portion 130 and the surface of the male screw portion 11 from sliding during the screw connection between the female screw portion 10 and the male screw portion 11, and the surface of the convex portion 130 and the male screw portion 11 from being scraped. .

  Further, as shown in FIGS. 4 and 5, the concave portion 120 is formed on the top portion 16 of the upper end portion 15 b of the screw thread 15 of the male screw portion 11, and the convex portion 130 is formed on the upper end portion 14 b of the screw thread 14 of the female screw portion 10. And is formed on the bottom wall between the threads adjacent to the bottom. As shown in FIG. 4, the upper end portion 14 b of the screw thread 14 of the female screw portion 10 is higher than the upper end portion 15 b of the screw thread 15 of the male screw portion 11 when the fastening of the female screw portion 10 and the male screw portion 11 is completed. Therefore, the concave portion 120 is provided on the top of the upper end portion 15b of the screw thread 15, and the convex portion 130 is provided on the bottom wall between the screw threads adjacent to the upper end portion 14b of the screw thread 14 below. However, the position where the concave portion and the convex portion are provided is not limited to this position. For example, when the fastening of the female thread part and the male thread part is completed, if the upper end of the thread of the female thread part is positioned below the upper end of the thread of the male thread part, the convex part is above the thread of the female thread part. It can also be set as the structure provided in the inner wall of the 2nd cylinder 45 located above an edge part.

  Furthermore, even when the concave portion 120 and the convex portion 130 as shown in FIGS. 4 and 5 are used, a female screw portion is provided on one of the nozzle head and the adapter, and a male screw portion that engages with the female screw portion is provided on the other side. Any configuration may be used, and a male screw portion may be formed on the nozzle head and a female screw portion may be formed on the adapter. In addition, one of the concave portion and the convex portion is formed on the top of one screw thread of the female screw portion and the male screw portion, and the other of the concave portion and the convex portion is formed on the bottom wall between the other screw threads of the female screw portion and the male screw portion. In other words, the protrusion may be formed on the top of the thread of the male screw portion, and the recess may be formed on the bottom wall between the threads of the female screw portion.

  Further, when the female screw portion 10 of the nozzle head 4 shown in the present embodiment is die-molded with a die by forcible removal (up-and-down removal) in order to simplify the mold structure, the screw of the formed female screw portion 10 is used. The crest 14 may sag when it is forcibly removed, and the desired shape may not be obtained. In such a case, it is difficult to maintain a holding torque that holds the screw connection between the female screw portion 10 and the male screw portion 11. For example, when the adjacent nozzles 42 collide with each other during transportation, The screw connection with the male screw portion 11 is easy to loosen. However, if it is set as the structure provided with the recessed part 12 and the convex part 13 (concave part 120 and convex part 130) which are shown by this embodiment, the recessed part 12 and the screw | thread end (fastening completion position) of the internal thread part 10 and the external thread part 11 will be carried out. The convex part 13 fits, the internal thread part 10 and the external thread part 11 are locked, and functions as a loosening prevention.

  The present invention relates to a pump-type dispenser, and more particularly, to a pump-type dispenser including a nozzle head that drives a pump by pushing and restoring, and a maintenance mechanism that can maintain the pushed-in state of the nozzle head.

1: pump type dispenser 2: base 3: pump 4: nozzle head 5: adapter 6, 60: maintenance mechanism 10: female screw part 11: male screw part 12, 120: concave part 13, 130: convex part 14: female screw part Thread 14a: Lower end 14b of female thread part: Upper end 15 of female thread part 15: Male thread part 15a: Lower thread part 15b of male thread part: Upper end part 16 of male thread part Screw top 21: Base top plate 22: Base cylinder 23: Non-slip 24: Base opening 25: Base screw part 31: Cylinder 32: Suction pipe 33: Stem 34: Pump cylinder 35: Claw Part 37: flange 38: outer cylinder member 41: operation part 42: nozzle 43: top plate 44 of the operation part: first cylinder 45 of the operation part 45: second cylinder 46 of the operation part: third cylinder of the operation part 47: Discharge port 51: Adapt Top plate 52: Adapter first cylinder 53: Adapter second cylinder 54: Adapter third cylinder 55: Adapter fourth cylinder 56: Locking part M: Container mouth O: Pump Axis

Claims (6)

A base screwed and fixed to the mouth of the container; a pump suspended and fixed by the base through the mouth; and a pump for pumping up the contents inside the container; and driving the pump by repeatedly pushing and restoring; A pump-type dispenser comprising: a nozzle head that discharges the pumped contents to the outside; and an adapter that is attached to the pump and prevents the base from being pulled upward.
A maintenance mechanism capable of maintaining a state in which the nozzle head is pushed in between the nozzle head and the adapter,
The maintenance mechanism includes a male screw portion provided in one of the nozzle head and the adapter, and a female screw portion provided in the other,
The outer peripheral surface of the inner peripheral surface and the male screw portion is formed to the female screw portion is formed is fitted into each other physician upon engagement completion of the internal thread portion and the male screw portion in cross section arcuate A plurality of convex portions and concave portions are continuously formed in the fitting direction, and the convex portions are in contact with a screw portion where the concave portions are formed for the first time when fastening is completed ,
The nozzle head, pump dispensing device, characterized in der Rukoto those molded by forced venting.   The pump-type dispenser according to claim 1, wherein the female screw portion is formed on the nozzle head, and the male screw portion is formed on the adapter.   The recess is formed at a lower portion of the female screw portion, the convex portion is formed at a lower portion of the male screw portion, the concave portion is formed at an upper portion of the male screw portion, and the convex portion is formed at an upper portion of the female screw portion. The pump-type dispenser according to claim 2, wherein   The pump type extractor according to any one of claims 1 to 3, wherein the number of the concave portions is larger than the number of the convex portions.   One of the concave portion and the convex portion is formed on a side wall of one screw thread of the female screw portion and the male screw portion, and the other of the concave portion and the convex portion is the other screw thread of the female screw portion and the male screw portion. The pump type dispenser according to any one of claims 1 to 4, wherein the pump type dispenser is formed on a side wall of the pump.   One of the concave portion and the convex portion is formed at the top of one screw thread of the female screw portion and the male screw portion, and the other of the concave portion and the convex portion is between the other screw threads of the female screw portion and the male screw portion. The pump type dispenser according to any one of claims 1 to 4, wherein the pump type dispenser is formed on a bottom wall of the pump.

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