Pump container

Abstract

To provide a pump container capable of preventing a push-down head from being pushed down unexpectedly without using an overcap. [Solution] A pump container 1 having a container body 10, an attachment cap 20, a pump, a push-down head 40, and a cover, and comprising a stopper member 60 attached to the attachment cap 20, wherein the stopper member 60 has a fixed portion 61 fixed to the top wall 21 of the attachment cap 20, an elastically deformable arm portion 62 arranged on the upper surface 21b of the top wall 21, and an operating piece 63 connected integrally to the other end of the arm portion 62, arranged on the outside of the cover, and movable circumferentially along a notch provided in the cover, and characterized in that when the operating piece 63 moves from a first position to a second position circumferentially shifted from the first position, the arm portion 62 elastically deforms and a part of the arm portion 62 is positioned between the push-down head 40 and the top wall 21.

Description

[Technical Field]

[0001] The present invention relates to a pump container. [Background technology]

[0002] A pump container is known that includes a container body that contains the contents, an attachment cap attached to the mouth of the container body, a pump body suspended from the attachment cap and a stem protruding upward from the top wall of the attachment cap, whereby the pump body performs a discharge operation when the stem is pressed down, and a push-down head that has a discharge port for the contents and is attached to the upper end of the stem (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2023-143668 Summary of the Invention [Problem to be solved by the invention]

[0004] The conventional pump containers described above are configured such that an overcap that covers the depression head is detachably attached to the mounting cap to prevent the depression head from being accidentally depressed and the contents from being discharged during distribution or when not in use.

[0005] Therefore, with the conventional pump containers described above, the overcap needs to be removed from the attached cap when in use, and there is also the risk that the removed overcap will be lost or there is no place to store it, making handling the overcap cumbersome.

[0006] The present invention has been made in consideration of such problems, and its purpose is to provide a pump container that can prevent the push-down head from being accidentally pushed down without using an overcap. [Means for solving the problem]

[0007] The pump container of the present invention comprises a container body for accommodating contents, an attachment cap attached to the opening of the container body, a pump body suspended from the attachment cap and a stem protruding upward from the top wall of the attachment cap, the pump body being configured to discharge when the stem is pressed down, a push-down head having a discharge port for the contents and attached to the upper end of the stem, and a cover attached to the outside of the attachment cap and covering a part of the periphery of the push-down head, and the pump body is supported by a pump body suspended from the attachment cap and a stem protruding upward from the top wall of the attachment cap, the pump body being configured to discharge when the stem is pressed down, a push-down head having a discharge port for the contents and attached to the upper end of the stem, and a cover attached to the outside of the attachment cap and covering a part of the periphery of the push-down head, The stopper member has a fixed portion fixed to the top wall, an elastically deformable arm portion connected integrally to the fixed portion at one end and positioned on the upper surface of the top wall, and an operating piece connected integrally to the other end of the arm portion, positioned on the outside of the cover, and movable circumferentially along a notch provided in the cover, and is configured so that when the operating piece moves from a first position to a second position circumferentially shifted from the first position, the arm portion elastically deforms and a part of the arm portion is positioned between the push-down head and the top wall.

[0008] In the pump container of the present invention having the above configuration, it is preferable that the arm portion has an arc-shaped portion centered on the axis of the stem.

[0009] In the pump container of the present invention, in the above configuration, it is preferable that the cover has a groove that is continuous with the notch and extends upward relative to the notch, and that the operating piece is held in the second position by engaging the arm portion with the groove. [Effects of the Invention]

[0010] According to the present invention, it is possible to provide a pump container that can prevent the depression head from being accidentally depressed without using an overcap. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 2 is a front view of the pump container according to the embodiment of the present invention. [Figure 2] 2 is a perspective view of the upper portion of the pump container shown in FIG. 1 with a part of the cover cut away. FIG. [Figure 3] 2 is a front view of the upper part of the pump container shown in FIG. 1 with the cover removed. FIG. [Figure 4] FIG. 2 is a perspective view of the upper portion of the pump housing shown in FIG. 1. [Figure 5] 2 is a plan view of the pump container shown in FIG. 1 with the cover removed. [Figure 6] FIG. 6 is a cross-sectional view taken along line AA in FIG. 5 (with some cross-sectional shapes being simplified). [Figure 7] 2 is a side view of the upper part of the pump container shown in FIG. 1 when the operating piece is in a first position. FIG. [Figure 8] 2 is a side view of the upper part of the pump container shown in FIG. 1 when the operating piece is in a second position. FIG. [Figure 9] 5 is a plan view of the pump container shown in FIG. 1, corresponding to FIG. 4, when the operating piece is in a second position. [Figure 10] FIG. 10 is a cross-sectional view taken along line BB in FIG. 9 (a part of the cross-sectional shape is simplified). DETAILED DESCRIPTION OF THE INVENTION

[0012] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0013] A pump container 1 according to one embodiment of the present invention shown in FIG. 1 is capable of storing liquid contents and discharging the contents in small, predetermined amounts at a time.

[0014] As shown in FIGS. 1, 2 and 3, the pump container 1 includes a container body 10, an attachment cap 20, a pump 30, a depression head 40 and a cover 50.

[0015] In this embodiment, "upper" and "lower" refer to the upper and lower sides when the pump container 1 is in the upright position shown in Figure 1, and "circumferential direction" refers to the circumferential direction centered on the axis O of the pump container 1.

[0016] The container body 10 is a portion that accommodates the contents 2. In this embodiment, the container body 10 has a bottle shape having a cylindrical body 11 with a bottom centered on an axis O, a shoulder 12 connected to the upper end of the body 11, and a cylindrical mouth 13 (see FIG. 3) centered on the axis O that protrudes upward from the inner peripheral edge of the shoulder 12. The outer diameter of the mouth 13 is smaller than the outer diameter of the body 11 but is relatively large. In other words, the container body 10 is a so-called wide-mouth bottle. The container body 10 may be made of a synthetic resin formed by blow molding, injection molding, or the like, but is not limited to these. As shown in FIG. 3, the interior of the container body 10 forms a storage space 14, and the container body 10 can accommodate the contents 2 in the storage space 14.

[0017] As shown in FIGS. 2 and 3 , the attachment cap 20 is cap-shaped (generally cylindrical with a top and centered on the axis O) having a top wall 21 and a peripheral wall 22, and is attached to the mouth 13 of the container body 10. In this embodiment, the attachment cap 20 is an injection-molded product of a synthetic resin material, and is attached to the mouth 13 by screw connection and fixed to the mouth 13. Note that the attachment cap 20 is not limited to an injection-molded product of a synthetic resin material, and may be attached to the mouth 13 by other methods, such as stoppering. The top wall 21 is disc-shaped and centered on the axis O, and has a through-hole 21 a at its center. The peripheral wall 22 is cylindrical and centered on the axis O. A circular arc-shaped protrusion 23 is integrally formed on a portion of the outer periphery of the top wall 21, protruding radially outward from the axis O and extending downward beyond the peripheral wall 22.

[0018] As shown in FIG. 3 , the pump 30 includes a pump body 31 suspended from the attachment cap 20 and a stem 32 protruding upward from the top wall 21 of the attachment cap 20. Although not shown in detail, the pump body 31 includes components such as a cylinder and a piston, and is suspended from the attachment cap 20 and disposed inside the container body 10. The stem 32 is cylindrical, centered on axis O, and its lower end is disposed in the pump body 31, passing through a through-hole 21a in the top wall 21 and protruding above the top wall 21. The pump 30 is configured so that the pump body 31 discharges when the stem 32 is pressed down. When the stem 32 is released, it returns to its original position due to an elastic member (not shown), and at that time the pump body 31 performs a suction operation, filling the interior of the pump body 31 with new content 2 from the storage space 14.

[0019] 1, 2, and 3, the push-down head 40 has a discharge port 41 for the contents 2 and is attached to the upper end of the stem 32. In this embodiment, the push-down head 40 is cylindrical with a top, centered on the axis O, and has a diameter larger than that of the stem 32 and smaller than that of the through-hole 21a in the top wall 21. The discharge port 41 is connected to the stem 32.

[0020] When the push-down head 40 is pressed downward, the stem 32 is pressed downward together with the push-down head 40, causing the pump body 31 to perform a discharge operation. When the pump body 31 performs a discharge operation, the contents 2 discharged from the pump body 31 are pressure-fed through the stem 32 to the push-down head 40 and then discharged from the discharge port 41. In this way, the pump container 1 is configured so that the contents 2 are discharged in predetermined amounts from the discharge port 41 by pressing down the push-down head 40.

[0021] As shown in FIG. 2, in its natural state, that is, when not being pressed down, the press-down head 40 is disposed so that its lower end 42 is located above the upper surface 21b of the top wall 21.

[0022] As shown in FIGS. 1 and 2 , the cover 50 is attached to the outside of the attachment cap 20 and covers a portion of the periphery of the press-down head 40. In this embodiment, the cover 50 has a pair of protrusions 51 disposed on both sides of the press-down head 40 and a valley-shaped portion 52 between the pair of protrusions 51. The cover 50 is attached to the outside of the attachment cap 20 by undercut engagement at a cylindrical peripheral wall portion 53 below the protrusions 51 and the valley-shaped portion 52. A through-hole 54 is provided in the center of the valley-shaped portion 52, and the press-down head 40 protrudes into the valley-shaped portion 52 through the through-hole 54 and is disposed between the pair of protrusions 51. In this manner, the cover 50 is configured to cover both sides of the press-down head 40 with the pair of protrusions 51. During use, a user can easily press down the press-down head 40 by inserting their fingers along the valley-shaped portion 52.

[0023] The cover 50 is not limited to the above shape or configuration, as long as it can be attached to the outside of the attachment cap 20 and cover a portion of the periphery of the press-down head 40 .

[0024] As shown in FIG. 4 , a notch 55 is provided in the peripheral wall portion 53 of the cover 50. The protruding portion 23 of the attachment cap 20 is fitted flush into the notch 55. The upper end of the protruding portion 23 is located lower than the notch 55. As a result, a guide groove 56 extending in the circumferential direction is defined and formed between the upper end of the protruding portion 23 and the upper end of the notch 55. In addition, the cover 50 is provided with a recessed groove 57 that is continuous with the notch 55 and extends upward relative to the notch 55. The recessed groove 57 is continuous with the circumferential end of the notch 55, i.e., the guide groove 56.

[0025] The pump container 1 according to this embodiment includes a stopper member 60 to prevent the push-down head 40 from being accidentally pushed down without using an overcap. As shown in Figures 2, 3, and 5, the stopper member 60 is attached to the mounting cap 20.

[0026] As shown in FIG. 5, the stopper member 60 has a fixing portion 61, an arm portion 62, and an operation piece 63.

[0027] The fixing portion 61 is a portion that is fixed to the top wall 21. That is, the stopper member 60 is attached to the attachment cap 20 by fixing the fixing portion 61 to the top wall 21. In this embodiment, the fixing portion 61 is a thin plate-like portion with an elongated hole 61a formed therein. A protrusion 24 that faces the elongated hole 61a is integrally formed on the upper surface 21b of the top wall 21, and the fixing portion 61 is fixed to the upper surface 21b of the top wall 21 by fitting and fixing the protrusion 24 into the elongated hole 61a. The fixing portion 61 cannot rotate with respect to the protrusion 24 because the portion of the fixing portion 61 that is fitted and fixed to the protrusion 24 is the elongated hole 61a.

[0028] As long as the fixing portion 61 is fixed to the top wall 21, it is not limited to the above configuration, and various configurations may be used, such as a configuration in which it is fixed to the top wall 21 using a fastening member such as a bolt.

[0029] The arm portion 62 has an elongated plate shape that is elastically deformable, and is disposed on the upper surface 21b of the top wall 21 with one end integrally connected to the fixed portion 61. In this embodiment, the arm portion 62 has an arc-shaped portion 62a centered on the axis O of the stem 32. The arc-shaped portion 62a has an inner diameter larger than the outer diameter of the press-down head 40, and is disposed along the outer circumferential surface of the press-down head 40 with a predetermined distance therebetween in a plan view. That is, as shown in FIG. 6 , the arc-shaped portion 62a of the stopper member 60 is disposed on the upper surface 21b of the top wall 21, offset radially outward from the press-down head 40. One end of the arc-shaped portion 62a is integrally connected to the fixed portion 61, and the other end of the arc-shaped portion 62a is integrally connected to a linear portion 62b. The linear portion 62 b extends straight along the radial direction, and the tip thereof facing radially outward protrudes outside the peripheral wall 22 .

[0030] The arm 62 is elastically deformable. More specifically, the arm 62 is elastically deformable in a direction that increases the degree of curvature of the arc-shaped portion 62a along the upper surface 21b of the top wall 21. That is, the arm 62 functions as a leaf spring. The linear portion 62b is wider in the direction along the upper surface 21b of the top wall 21 than the arc-shaped portion 62a, and is less likely to elastically deform in the direction along the upper surface 21b of the top wall 21 than the arc-shaped portion 62a. The arm 62 is also elastically deformable so that the arc-shaped portion 62a and the linear portion 62b warp upward.

[0031] The arm portion 62 is not limited to the above shape, and may have any other shape as long as it is elastically deformable and is disposed on the upper surface 21b of the top wall 21 with one end integrally connected to the fixed portion 61.

[0032] The operation piece 63 is integrally connected to the other end of the arm portion 62 opposite to the end connected to the fixed portion 61. In this embodiment, the operation piece 63 is integrally connected to the tip of the linear portion 62b. The operation piece 63 is disposed on the outside of the cover 50 and is movable in the circumferential direction along a notch 55, i.e., a guide groove 56, provided in the cover 50. In this embodiment, the operation piece 63 is a curved plate whose width in the up-down direction is wider than the guide groove 56, and can move in the circumferential direction while sliding against the peripheral wall portion 53 of the cover 50 and the protruding portion 23 of the attachment cap 20.

[0033] The shape of the operation piece 63 is not limited to the above and can be changed in various ways.

[0034] As shown in Fig. 7, the operating piece 63 is movable circumferentially between a first position where the linear portion 62b of the arm 62 is positioned at one circumferential end of the notch 55 of the cover 50, i.e., the guide groove 56, and a second position where the linear portion 62b of the arm 62 is positioned at the other circumferential end of the notch 55 of the cover 50, i.e., the guide groove 56, as shown in Fig. 8. The second position is on the opposite side of the first position from the side where the arm 62 is positioned.

[0035] In this embodiment, by moving the operating piece 63 upward at the other circumferential end of the guide groove 56, the linear portion 62b of the arm 62 is positioned inside the recessed groove 57. This allows the linear portion 62b to be engaged with the recessed groove 57, and the operating piece 63 can be held in the second position.

[0036] In the pump container 1 having the above configuration, in a natural state in which the operating piece 63 is in the first position shown in Fig. 7, the arc-shaped portion 62a of the arm 62 is shifted radially outward relative to the press-down head 40, as shown in Figs. 5 and 6. In other words, the arm 62 of the stopper member 60 is not positioned below the lower end 42 of the press-down head 40. Therefore, in a natural state in which the operating piece 63 is in the first position, the user can press down the press-down head 40 to cause the pump body 31 to discharge and discharge the content 2 from the discharge port 41.

[0037] On the other hand, during distribution or when not in use, the pump container 1 can be placed in a state in which the stopper member 60 restricts the depression of the push-down head 40 by switching the operating piece 63 from the first position shown in Fig. 7 to the second position shown in Fig. 8. More specifically, when the operating piece 63 moves to the second position shown in Fig. 8, as shown in Fig. 9, the arc-shaped portion 62a of the arm 62 of the stopper member 60, in particular, moves downward from the push-down head 40 while elastically deforming so as to increase the degree of curvature with the fixed portion 61 as the base point. As a result, as shown in Figs. 9 and 10, a part of the arc-shaped portion 62a of the arm 62 is positioned between the push-down head 40 and the top wall 21, more specifically, between the lower end 42 of the push-down head 40 and the upper surface 21b of the top wall 21.

[0038] The thickness of the arm portion 62 disposed between the lower end 42 of the press-down head 40 and the upper surface 21b of the top wall 21 is slightly thinner than the vertical distance between the lower end 42 of the press-down head 40 and the upper surface 21b of the top wall 21.

[0039] When a part of the arm 62 of the stopper member 60 is positioned between the lower end 42 of the push-down head 40 and the upper surface 21b of the top wall 21, the downward movement of the push-down head 40 is restricted by the stopper member 60, and the push-down head 40 is placed in a state where it cannot be pressed down. Therefore, even if the pump container 1 is configured without an overcap that covers the push-down head 40, by switching the operating piece 63 from the first position shown in Fig. 7 to the second position shown in Fig. 8, it is possible to prevent the push-down head 40 from being accidentally pressed down and the content 2 from being discharged.

[0040] In this way, in the pump container 1 of this embodiment, a stopper member 60 is provided on the attachment cap 20, and by switching the operating piece 63 of the stopper member 60 from the first position to the second position, a portion of the arm portion 62 of the stopper member 60 is positioned between the lower end 42 of the push-down head 40 and the upper surface 21b of the top wall 21.Therefore, without using an overcap, it is possible to prevent the push-down head 40 from being accidentally pushed down and the contents 2 from being ejected by simply switching the operating piece 63 of the stopper member 60 from the first position to the second position.

[0041] Furthermore, in the pump container 1 according to this embodiment, the arm 62 of the stopper member 60 is configured to have an arc-shaped portion 62a centered on the axis O of the stem 32, which allows the arm 62 to more easily elastically deform when the operating piece 63 is moved from the first position to the second position, thereby improving the operability of the operating piece 63. Furthermore, when the operating piece 63 is moved from the first position to the second position, a larger portion of the arm 62 is positioned between the lower end 42 of the press-down head 40 and the upper surface 21b of the top wall 21, which more reliably prevents the press-down operation of the press-down head 40.

[0042] Furthermore, in the pump container 1 according to this embodiment, the cover 50 is configured to include a recessed groove 57 that is continuous with the notch 55 and extends upward relative to the notch 55, and the operating piece 63 is held in the second position by engaging the arm 62 with the recessed groove 57, so that the operating piece 63 can be held in the second position more easily and reliably. This makes it possible to more reliably prevent the press-down operation of the press-down head 40.

[0043] In addition, the operating piece 63 is not limited to being held in the second position by engaging the arm portion 62 with the recessed groove 57, but may also be held in the second position by other configurations, such as by engaging a portion of the arm portion 62 with a hook provided on the top wall 21.

[0044] The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit and scope of the present invention. [Explanation of symbols]

[0045] 1 pump container 2 Contents 10 Container body 11 Torso 12 Shoulder 13 Mouth 14 Containment Space 20 Mounting cap 21 Ceiling wall 21a Through hole 21b Top surface 22 Peripheral wall 23 Overhang 24 protrusions 30 Pump 31 Pump body 32 Stem 40 Press-down head 41 Discharge port 42 Bottom end 50 Cover 51 Protrusion 52 Valley part 53 Peripheral wall part 54 Through hole 55 Notch 56 Guide groove 57 Groove 60 Stopper member 61 Fixed part 61a long hole 62 Arm 62a Arc-shaped part 62b Straight section 63 Operation piece O axis

Claims

1. a container body for accommodating contents; an attachment cap attached to the mouth of the container body; a pump including a pump body suspended from the mounting cap and a stem protruding upward from a top wall of the mounting cap, the pump body performing a discharge operation when the stem is pressed down; a push-down head attached to the upper end of the stem and having a discharge port for the contents; a cover attached to the outside of the mounting cap and covering a part of the periphery of the depression head, a stopper member attached to the mounting cap; The stopper member is a fixing portion fixed to the top wall; an elastically deformable arm portion that is integrally connected to the fixed portion at one end and is disposed on the upper surface of the top wall; an operating piece that is integrally connected to the other end of the arm portion, that is disposed on the outside of the cover, and that is movable in a circumferential direction along a notch provided in the cover, A pump container characterized in that, when the operating piece moves from a first position to a second position circumferentially shifted from the first position, the arm portion elastically deforms and a portion of the arm portion is positioned between the push-down head and the top wall.

2. The pump container according to claim 1 , wherein the arm portion has an arc-shaped portion centered on the axis of the stem.

3. the cover includes a recessed groove that is continuous with the notch and extends upward relative to the notch, The pump container according to claim 1 or 2, wherein the arm portion is engaged with the recessed groove, thereby holding the operating piece at the second position.

Images