JP6906862B2 - Pump container - Google Patents

Description

The present disclosure relates to a pump container.

As a pump container equipped with a container body for accommodating contents such as shampoo, conditioner, body soap, hair styling product, and a pump attached to the container body and capable of discharging the contents, the contents can be discharged in the form of foam. Former pump containers are known. Such former pump containers may include a poppet valve. For example, in the former pump container described in Patent Document 1, the pump has a cylinder having a suction valve seat through which the contents pass, an air cylinder, a first direction toward the inside of the container body, and a second direction vice versa. An operating member having a discharge port for contents that can move in a direction, a piston that can slide on the cylinder, and a discharge path that connects a chamber partitioned by the piston and the cylinder to the discharge port, and a first direction. It is provided with a poppet valve that closes the suction valve seat by moving to, the operating member has a piston guide that partitions a part of the discharge path, and the piston guide slidably contacts the contact surface of the poppet valve. It has a sliding rib. Then, the operating member moves the poppet valve in the first direction through the contact between the sliding rib and the poppet valve by moving in the first direction to close the suction valve seat, and discharges the contents from the cylinder. Air can be sent out from the air cylinder, mixed with the contents, foamed, and discharged from the discharge port. Further, the operating member moves the poppet valve in the second direction through the contact between the sliding rib and the poppet valve by moving in the second direction to open the suction valve seat, and from the container body toward the cylinder. The contents can be sent.

Japanese Unexamined Patent Publication No. 2003-222073

However, in the conventional former former pump container as described in Patent Document 1, the sliding ribs are provided perpendicular to the contact surface when viewed along the first direction, and therefore cannot be elastically deformed. Is. For this reason, the sliding ribs of the piston guide strongly abut on the contact surface of the poppet valve due to dimensional errors during molding of the poppet valve, the piston guide (sliding rib), or other members constituting the operating member. In some cases, the sliding resistance becomes too large, which hinders the restoration of the operating member in the second direction. Therefore, for example, it is necessary to take measures such as increasing the urging force of the coil spring that urges the operating member in the second direction.

An object of the present invention is to provide a pump container in which a working member can be stably restored.

The pump container as one aspect of the present invention is
The container body that houses the contents and
It is equipped with a pump that is attached to the container body and can discharge the contents.
The pump
A cylinder with a suction valve seat through which the contents pass,
The contents can be moved in the first direction toward the inside of the container body and the second direction opposite to the inside of the container body, and the contents can be moved by the discharge port, the piston slidable on the cylinder, and the piston and the cylinder. An operating member having a discharge path connecting the partitioned chamber to the discharge port, and
A poppet valve that closes the suction valve seat by moving in the first direction is provided.
The operating member has a piston guide that partitions a part of the discharge path.
It said piston guide is to have a resiliently deformable sliding rib slidably contact with the contact surface of the poppet valve,
The sliding rib is inclined with respect to the contact surface when viewed along the first direction .

In one embodiment of the invention, the pump comprises a plurality of the sliding ribs spaced apart in the circumferential direction.

As one embodiment of the present invention, the pump is provided on the closing valve seat provided on the poppet valve and the closing valve seat provided on the operating member, and the closing valve seat is provided as the operating member moves in the second direction. It is provided with a closing valve including a closing valve body that closes the door.

As one embodiment of the present invention, the pump includes an urging member that urges the operating member in the second direction.

As one embodiment of the present invention, the operating member includes a delivery valve as a check valve arranged in a portion of the discharge path on the downstream side of the sliding rib.

As one embodiment of the present invention
The pump includes an air cylinder
The operating member can send air from the air cylinder to a portion of the discharge path downstream of the delivery valve by moving in the first direction.

As one embodiment of the present invention
The operating member
An air piston that can slide on the air cylinder,
An air flow path that connects the air chamber partitioned by the air piston and the air cylinder to the discharge path, and
An air delivery valve as a check valve arranged in the air flow path and
It is provided with an air suction valve as a check valve capable of sending air from the outside into the air chamber.

According to the present invention, it is possible to provide a pump container in which the operating member can be stably restored.

It is a vertical sectional view which shows the pump container which concerns on one Embodiment. It is a vertical cross-sectional view which shows the piston guide member of the pump container shown in FIG. FIG. 2A is a cross-sectional view taken along the line AA of FIG. 2A. It is a figure which shows the state when the sliding rib shown in FIG. 2B comes into contact with the contact surface of a poppet valve.

Hereinafter, the pump container 1 according to the embodiment will be described in detail with reference to the drawings. As shown in FIG. 1, the pump container 1 according to the present embodiment includes a container main body 2 for accommodating the contents and a pump 3 attached to the container main body 2 and capable of discharging the contents. The contents may be shampoo, conditioner, body soap, hair styling product, etc., but are not limited thereto. The container body 2 has a tubular (more specifically, cylindrical) mouth portion 4, a body portion 5 connected to the mouth portion 4, and a bottom portion (not shown) that closes the lower end of the body portion 5. There is. In the present embodiment, the container body 2 has a bottle shape including a mouth portion 4, a body portion 5 having a larger diameter than the mouth portion 4, and a bottom portion. However, the shape of the container body 2 can be changed as appropriate. The mouth portion 4 is provided with a male screw for attaching the pump 3 to the mouth portion 4 by screwing. However, the mouth portion 4 may be configured so that the pump 3 can be attached by fitting instead of screwing.

In the present embodiment, the pump 3 has a cylinder member 28, a cap member 29, an operating member 9, a poppet valve 10, an urging member 18, and a stopper 30. In the present embodiment, the operating member 9 includes a piston member 31, a piston guide 32, a valve body holding member 33, a delivery valve body 21b, a stem 34, a foaming member 37, a head 35, an outer wall member 36, an air piston member 9b, and an air suction member. It consists of a valve body 27b. However, the configurations of the pump 3 and the operating member 9 can be changed as appropriate. The cylinder member 28 has a cylinder 7 and an air cylinder 22. The cap member 29 is configured to attach the cylinder member 28 to the container body 2 by being directly attached to the mouth 4 of the container body 2. Further, the cap member 29 has a cylindrical (more specifically, cylindrical) guide cylinder 29a penetrated by the operating member 9 in the center thereof. The stopper 30 has an elastic fitting piece having a substantially C shape, and is configured to prevent the operating member 9 from moving downward by fitting the elastic fitting piece into the guide cylinder 29a. Has been done. Therefore, the stopper 30 is removed from the guide cylinder 29a when the pump 3 is used.

The operating member 9 can move in the first direction D1 toward the inside of the container body 2 and the second direction D2 in the opposite direction. In the present embodiment, the first direction D1 coincides vertically downward, so hereinafter, the first direction D1 is also referred to as downward. Further, the second direction D2 is also referred to as an upper direction. However, the first direction D1 does not have to coincide vertically downward. Further, the operating member 9 includes a discharge port 8 of the contents, a piston 19 slidable on the cylinder 7, and a discharge path 17 connecting the chamber 20 partitioned by the piston 19 and the cylinder 7 to the discharge port 8. Have. In the present embodiment, the discharge path 17 is partitioned by a piston member 31, a piston guide 32, a valve body holding member 33, a stem 34, a foaming member 37, and a head 35. The cylinder 7 has a suction valve seat 6 through which the contents pass. The poppet valve 10 is configured to close the suction valve seat 6 by moving in the first direction D1. Further, the poppet valve 10 can move downward and upward within a range of motion narrower than the range of motion of the operating member 9. The inner peripheral surface of the piston guide 32 has a sliding rib 12 that slidably contacts the contact surface 11 of the poppet valve 10. The operating member 9 moves the poppet valve 10 downward through the contact between the sliding rib 12 and the poppet valve 10 by moving downward to close the suction valve seat 6, and discharges the contents from the cylinder 7. It can be sent out toward 8. Further, the operating member 9 moves the poppet valve 10 upward through the contact between the sliding rib 12 and the poppet valve 10 by moving upward to open the suction valve seat 6, and the container is directed toward the cylinder 7. The contents can be sent from the main body 2. In the present embodiment, since the pump 3 includes an urging member (coil spring in this embodiment) 18 that urges the operating member 9 upward, the operating member 9 exerts an urging force on the urging member 18. It can move downward by the opposing pressing force, while it can move upward by the urging force of the urging member 18 by releasing the pressing force.

In the present embodiment, the suction valve seat 6 of the cylinder 7 is formed of a conical annular tapered surface whose diameter is reduced downward. Further, on the radial outer side of the suction valve seat 6, a plurality of vertical ribs 38 extending upward from the lower end portion of the cylinder 7 are provided. An urging member 18 is arranged between the plurality of vertical ribs 38 and the operating member 9. The poppet valve 10 has a suction valve body 10a capable of closing the suction valve seat 6 at the lower end portion. The suction valve body 10a has a cylindrical shape extending downward. A plurality of regulating ribs 10b extending radially outward are provided on the outer peripheral surface of the suction valve body 10a. The poppet valve 10 can move downward until the suction valve body 10a abuts on the suction valve seat 6, while the poppet valve 10 can move upward until the plurality of regulating ribs 10b abut on the lower end of the urging member 18. Further, an annular wall 10c having a substantially conical shape is provided at the upper end of the poppet valve 10. The annular wall 10c has a cylindrical tip and a conical base end. The contact surface 11 is formed by the outer peripheral surface of the tip of the annular wall 10c.

As shown in FIG. 3, the sliding rib 12 that slidably contacts the contact surface 11 of the poppet valve 10 is elastically deformable. More specifically, the sliding rib 12 is inclined with respect to the contact surface 11 when viewed along the first direction D1. In the present embodiment, the contact surface 11 of the poppet valve 10 has a tubular shape (more specifically, a cylindrical shape). The sliding rib 12 extends from the peripheral wall 13 having a tubular shape (more specifically, a cylindrical shape) so as to be inclined in the circumferential direction toward the inside in the radial direction. Therefore, the sliding rib 12 can be in pressure contact with the contact surface 11 while elastically flexing. Therefore, even if the dimensional error at the time of molding the poppet valve 10, the piston guide 32 (sliding rib 12) or the other member constituting the operating member 9 is large, the dimensional error can be absorbed by the bending deformation of the piston. By reducing the sliding resistance between the sliding rib 12 of the guide 32 and the poppet valve 10, a stable upward restoration operation of the operating member 9 can be ensured. Further, since the movement of the operating member 9 can be made smooth, it is possible to set the urging force of the urging member 18 to be small.

In the present embodiment, the pump 3 includes a plurality of sliding ribs 12 slidable (arranged at intervals in the circumferential direction) on the contact surface 11 of the poppet valve 10. Therefore, the operating member 9 can be operated stably. In the present embodiment, three sliding ribs 12 are provided, but the number of the sliding ribs 12 can be increased or decreased.

In the present embodiment, as shown in FIG. 1, the pump 3 is provided on the closing valve seat 14 provided on the poppet valve 10 and the operating member 9, and the closing valve seat is provided as the operating member 9 moves upward. A shutoff valve 16 including a shutoff valve body 15 that closes the 14 is provided. More specifically, the outer peripheral surface of the base end portion of the annular wall 10c of the poppet valve 10 constitutes the closing valve seat 14, and the upper end portion of the piston member 31 constitutes the closing valve body 15. Therefore, by returning the operating member 9 upward, the discharge path 17 of the contents can be closed by the closing valve 16 and the leakage of the contents when the pump container 1 falls or the like can be suppressed.

In the present embodiment, the operating member 9 includes a piston 19 that can slide on the cylinder 7, and a discharge path 17 that connects the chamber 20 partitioned by the piston 19 and the cylinder 7 to the discharge port 8. The operating member 9 includes a delivery valve 21 as a check valve arranged in a portion of the discharge path 17 on the downstream side of the sliding rib 12. Therefore, when the operating member 9 is returned upward, the chamber 20 is effectively negatively pressured by closing the delivery valve 21, and the contents can be smoothly sucked from the container body 2 to the chamber 20. The delivery valve 21 is configured as a ball valve in this embodiment, but may be another type of valve.

In this embodiment, the pump 3 includes an air cylinder 22. Then, the operating member 9 can send air from the air cylinder 22 to a portion downstream of the delivery valve 21 in the discharge path 17 by moving downward. Therefore, according to the pump container 1 according to the present embodiment, the contents can be mixed with air to form bubbles and then discharged. However, the pump container 1 does not have to be such a former pump container, and the liquid discharge omits the air cylinder 22, the air piston member 9b, the air suction valve body 27b, the foaming member 37, the valve body holding member 33, and the like. It is also possible to adopt a pump container for.

In the present embodiment, the operating member 9 includes an air piston 23 that can slide on the air cylinder 22 and an air flow path 25 that connects the air chamber 24 partitioned by the air piston 23 and the air cylinder 22 to the discharge path 17. It has. The operating member 9 includes an air delivery valve 26 as a check valve arranged in the air flow path 25. In the present embodiment, the air delivery valve 26 is an air delivery valve body 26b provided on an air delivery valve seat 26a provided on the operating member main body 9a and an air piston member 9b that acts with play with respect to the operating member main body 9a. It is composed of and. In the present embodiment, the operating member main body 9a includes a piston member 31, a piston guide 32, a valve body holding member 33, a delivery valve body 21b, a stem 34, a foaming member 37, a head 35, and an outer wall member 36. However, the air delivery valve 26 is not limited to this type of valve. Further, the operating member 9 includes an air suction valve 27 as a check valve capable of sending air from the outside to the air chamber 24. The air suction valve 27 is configured as an elastic valve in this embodiment, but may be another type of valve. According to such a configuration, the pump container 1 can be configured as a former pump container that can be easily made compact.

In the present embodiment, foam members 37 (two in the present embodiment) are arranged on the stem of the operating member 9. The air that has passed through the air flow path 25 is mixed with the contents that have passed through the delivery valve 21, is foamed by the foaming member 37, and is sent to the discharge port 8. A delivery valve body (ball valve body) 21b is arranged between the valve body pressing member 33 and the piston guide 32, and the delivery valve 21 is configured by fitting the valve body pressing member 33 into the piston guide 32. There is. That is, the delivery valve 21 is composed of a delivery valve seat 21a, a delivery valve body 21b, and a valve body holding member 33. The piston member 31 includes a piston 19, a tubular (more specifically, cylindrical) tubular wall 31a extending upward from the upper end of the piston 19, and a substantially cylindrical upper end reduced in diameter from the upper end of the tubular wall 31a. Has a part. As shown in FIGS. 2A and 2B, the piston guide 32 has a peripheral wall 13, an internal wall 32a extending radially inward from the peripheral wall 13, and a cylindrical shape extending downward while expanding the diameter from the lower end of the peripheral wall 13. Specifically, it has a (cylindrical) fitting wall 32b. A delivery valve seat 21a for passing the contents is provided in the center of the inner wall 32a. The upper end of each sliding rib 12 is connected to the inner wall 32a. Further, each sliding rib 12 extends elongated along the first direction D1. Further, each sliding rib 12 extends linearly so as to be inclined in the circumferential direction from the peripheral wall 13 inward in the radial direction when viewed along the first direction D1. However, the shape and arrangement of the sliding ribs 12 can be changed. As shown in FIG. 1, the head 35 has a discharge port 8. The outer wall member 36 is fitted to the head 35. An air introduction port for taking in air into the container body 2 and the air cylinder 22 is located near the fitting portion between the outer wall member 36 and the head 35 (between the lower surface of the nozzle portion having the discharge port 8 and the outer wall member 36, etc.). It is provided. The piston guide 32 (fitting wall 32b) is fitted to the piston member 31 (cylinder wall 31a), the stem 34 is fitted to the piston guide 32, and the head 35 is fitted to the stem 34. .. The air piston member 9b of the operating member 9 has an air piston 23 and an air suction valve seat 27a. An air suction valve body 27b as an elastic valve body that opens and closes the air suction valve seat 27a is attached to the air piston member 9b. The air flow path 25 is formed by the gap formed between the air piston member 9b and the piston guide 32 and the gap formed between the stem 34 and the piston guide 32. However, the configuration of the operating member 9 can be changed.

The above description merely shows one embodiment and does not limit the scope of claims. Various modifications can be made to the above-described embodiment based on the basic matters of the present disclosure.

For example, the actuating member 9 has been described by taking as an example a type in which the head 35 is pushed down, but a trigger type or the like may be used. The container body 2 may be a double container composed of an outer container and an inner container, or may be a laminated peeling container composed of an outer layer and an inner layer that can be peeled from each other.

1 Pump container 2 Container body 3 Pump 4 Port 5 Body 6 Suction valve seat 7 Cylinder 8 Discharge port 9 Activating member 9a Acting member body 9b Air piston member 10 Poppet valve 10a Suction valve body 10b Regulatory rib 10c Ring wall 11 Contact surface 12 Sliding rib 13 Peripheral wall 14 Closing valve seat 15 Closing valve body 16 Closing valve 17 Discharge path 18 Energizing member 19 Piston 20 Chamber 21 Sending valve 21a Sending valve seat 21b Sending valve body 22 Air cylinder 23 Air piston 24 Air chamber 25 Air Flow path 26 Air delivery valve 26a Air delivery valve seat 26b Air delivery valve body 27 Air suction valve 27a Air suction valve seat 27b Air suction valve body 28 Cylinder member 29 Cap member 29a Guide cylinder 30 Stopper 31 Piston member 31a Cylinder wall 32 Piston guide 32a Inner wall 32b Fitting wall 33 Valve body holding member 34 Stem 35 Head 36 Outer wall member 37 Foaming member 38 Vertical rib D1 1st direction D2 2nd direction

Claims (7)

The container body that houses the contents and
It is equipped with a pump that is attached to the container body and can discharge the contents.
The pump
A cylinder with a suction valve seat through which the contents pass,
The contents can be moved in the first direction toward the inside of the container body and the second direction opposite to the inside of the container body, and the contents can be moved by the discharge port, the piston slidable on the cylinder, and the piston and the cylinder. An operating member having a discharge path connecting the partitioned chamber to the discharge port, and
A poppet valve that closes the suction valve seat by moving in the first direction is provided.
The operating member has a piston guide that partitions a part of the discharge path.
It said piston guide is to have a resiliently deformable sliding rib slidably contact with the contact surface of the poppet valve,
A pump container in which the sliding ribs are inclined with respect to the contact surface when viewed along the first direction. The pump container according to claim 1 , wherein the pump includes a plurality of the sliding ribs arranged at intervals in the circumferential direction. The pump includes a closing valve seat provided on the poppet valve and a closing valve body provided on the operating member and closing the closing valve seat as the operating member moves in the second direction. The pump container according to claim 1 or 2 , further comprising a shutoff valve. The pump container according to any one of claims 1 to 3 , wherein the pump includes an urging member that urges the operating member in the second direction. The pump container according to any one of claims 1 to 4 , wherein the operating member includes a delivery valve as a check valve arranged in a portion downstream of the sliding rib in the discharge path. The pump includes an air cylinder
The pump container according to claim 5 , wherein the operating member can send air from the air cylinder to a portion of the discharge path downstream of the delivery valve by moving in the first direction. The operating member
An air piston that can slide on the air cylinder,
An air flow path that connects the air chamber partitioned by the air piston and the air cylinder to the discharge path, and
An air delivery valve as a check valve arranged in the air flow path and
The pump container according to claim 6 , further comprising an air suction valve as a check valve capable of sending air from the outside into the air chamber.

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